EP2212058B2 - Pressing device for cutting means and apparatus and method for finishing circumferential surfaces on cylindrical parts of a workpiece - Google Patents
Pressing device for cutting means and apparatus and method for finishing circumferential surfaces on cylindrical parts of a workpiece Download PDFInfo
- Publication number
- EP2212058B2 EP2212058B2 EP08840276.3A EP08840276A EP2212058B2 EP 2212058 B2 EP2212058 B2 EP 2212058B2 EP 08840276 A EP08840276 A EP 08840276A EP 2212058 B2 EP2212058 B2 EP 2212058B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressing
- workpiece
- pressing device
- finishing
- belt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Not-in-force
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/02—Machines or devices using grinding or polishing belts; Accessories therefor for grinding rotationally symmetrical surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B35/00—Machines or devices designed for superfinishing surfaces on work, i.e. by means of abrading blocks reciprocating with high frequency
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/18—Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/18—Accessories
- B24B21/20—Accessories for controlling or adjusting the tracking or the tension of the grinding belt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/18—Accessories
- B24B21/22—Accessories for producing a reciprocation of the grinding belt normal to its direction of movement
Definitions
- the invention relates to a pressing device for pressing cutting means on circumferential surfaces of substantially cylindrical workpiece sections in a finish machining, to a device for finishing machining equipped with at least one pressing device, and to a method for finishing peripheral surfaces of substantially cylindrical workpiece sections.
- Finishing is a finishing process that processes the peripheral surfaces of substantially cylindrical workpiece sections on workpieces such as crankshafts, camshafts, transmission shafts, or other components for power and work machines to produce a desired surface finish.
- workpieces such as crankshafts, camshafts, transmission shafts, or other components for power and work machines to produce a desired surface finish.
- machining tool is pressed by a pressing device over a pressure angle with a pressing force to the peripheral surface to be machined.
- the workpiece is rotated about its workpiece axis.
- a relative movement that oscillates parallel to the workpiece axis is produced between the workpiece and the machining tool resting against the peripheral surface.
- the workpiece can be set in an axial oscillation movement.
- the oscillatory movement is generated by the machining tool.
- the machined workpiece peripheral surfaces e.g. As running surfaces for plain bearings or bearings or the like are particularly suitable.
- the workpiece section to be machined may be, for example, a main bearing or a crank bearing of a crankshaft or a camshaft bearing.
- a finishing belt has a band-shaped flexible carrier in which cutting grains are applied on the front side facing the workpiece with the aid of a binder.
- a tear-resistant, low-stretch polyester film serves as a carrier material for the grain-binder structure.
- fabric tapes are also used.
- finishing stones can be used.
- These are essentially rigid cutting bodies in which the granular cutting agent is bound by synthetic resin or ceramic or galvanic (in metal matrix) or in some other way.
- the workpiece-facing side of the abrasive body is often profiled according to the geometry of the workpiece surface to be machined to ensure a large-scale machining engagement.
- a finishing shoe has a substantially C-shaped pressing portion whose radius of curvature, taking into account the thickness of the finishing band, is adapted to the nominal diameter of the workpiece portion to be machined, that the finishing band is pressed substantially flat against the peripheral surface of the workpiece portion during processing by means of the finishing shoe ,
- the contour of the finishing tool can be impressed on the workpiece section to be machined so that a targeted adjustment of the macro-shape of the workpiece section is possible. If a workpiece section is to be machined with a different diameter, then the pressure element must be replaced by a pressure element with a correspondingly different radius of the C-shaped section.
- a device for finish machining which is equipped with a pressure element, which is so flexible that it can be radially geometrically adapted to the surface to be machined surface.
- the flexibility is designed in such a way that the pressure element can only be essentially applied to a workpiece of the same diameter, but this diameter can be changed by tensioning the drive element in the range of a few micrometers ( ⁇ m).
- the pressing elements must be exchanged for pressing elements of other dimensions if, after machining a first workpiece section with a first diameter on the same workpiece or on another workpiece, a workpiece section is to be machined with a significantly different second diameter.
- a pressing element for a band finishing machine which has a C-shaped section, with the finishing belt can be pressed against a workpiece surface.
- the C-shaped section has at least two partially cylindrical contact areas, the different radii of curvature have.
- the different radii of curvature of the two contact areas correspond to the nominal diameters of two workpiece sections to be machined with different diameters.
- the invention has for its object to provide a method and apparatus for finishing peripheral surfaces of substantially cylindrical workpiece sections, which allow to work with small equipment expense workpieces with workpiece sections of different diameters and thereby achieve a high surface quality regardless of the diameter of the workpiece sections ,
- the invention provides a pressing device with the features of claim 1 and a device with the features of claim 9 and a method with the features of claim 10 ready.
- a special feature of the pressing device is that the pressing device for machining workpiece sections of different diameter with a difference in diameter of at least 0.1 mm is continuously adjustable. This stepless adjustment is possible due to the construction of the pressing device, so that no change of pressure devices is necessary when workpiece sections of different diameter to be processed with a difference in diameter of 0.1 mm or more. Due to this adaptability of the pressing device to greatly differing diameters, it is possible for all diameters in the diameter range during machining to have a large-area machining engagement between the abrasive side of the finishing belt or the cutting bodies occupied by cutting means and the workpiece surface over the entire pressure angle defined by the pressing device forms, which surfaces of high quality can be generated.
- the adaptation of the pressing device to the diameter of the workpiece section is thus carried out by changing the geometry of the pressing device, wherein the pressing device constructively for relatively large defined geometry changes, i. is designed for relatively large changes in the curvature of the pressure surface provided by the pressing device. Since, in the pressing devices according to the invention, the pressing device can be continuously adapted or adapted to the diameter of the workpiece section, large-area machining is possible over the entire diameter range, as a result of which high surface qualities can be achieved.
- the difference in diameter may be at least 1% or at least 5% or at least 10%, in other embodiments also at least 15% or at least 20% or more.
- Some pressing devices are designed such that, in a diameter range ⁇ D of at least 0.1 mm or at least 1 mm between a minimum and a maximum diameter with an average diameter between 20 mm and 70 mm, each diameter can be machined.
- some embodiments are designed so that any diameter can be machined in a diameter range between about 50mm and about 70mm.
- most crankshafts common car engines with the help of a single type of pressing device to work well.
- pressing devices can also be designed for other diameter ranges, for example for a diameter range with a difference in diameter of at least 2 mm or at least 8 mm or at least 15 mm or more, for example with an average diameter of 20 mm or 40 mm or 50 mm or 60 mm or more.
- a relatively large diameter range can be covered with a single or with a few pressing devices.
- shafts for compressors can be machined, whose average diameters are often in the range of 20mm.
- crankshafts for cars typical diameters are often in the order of about 50mm, so that, for example, diameter ranges between 40 and 50mm and / or 50 and 60mm can be covered.
- the typical diameters are usually slightly higher, for example in the range of 70mm.
- the pressing device can be designed so that the adaptation of the pressing device to the diameter of the workpiece section takes place automatically or automatically changing the geometry of the pressing device when the cutting means is pressed by means of the pressing device to the curved peripheral surface of the workpiece section.
- Such pressing devices are also referred to below as "passive" pressing devices and are characterized by the fact that the pressing forces arising during pressing are used to set the correct diameter.
- the pressure device is designed as an adjustable pressure device, whose Andschreibgeometrie - determined by the radius of curvature of the pressure to be pressed on the back of the finishing surface (s) - by means of one or more actuators, e.g. Adjusting screws, automatically or by an operator to the diameter of the workpiece portion can be adjusted continuously before the pressing device presses the cutting means to the workpiece.
- actuators e.g. Adjusting screws
- Such devices are also referred to below as “active” or “actively adjustable” Andschreib painen.
- the respectively set radius of curvature of the pressing surface (s) is usually fixed and generally immutable after adjustment, so that such pressing devices can also be used for shape correction or for changing the diameter of the machined workpiece section.
- first a first workpiece section having a first diameter and then a second workpiece section having a second diameter different from the first diameter are machined with the same pressing device, wherein in each case a continuous adaptation of the pressing device to the respective diameters.
- the pressing device comprises at least one flexurally elastic pressure band which is fixed to two bearings of a carrier element arranged at a fixed distance from one another.
- the material or a material combination of the pressure band is substantially inelastic in the band direction, so that the band length between the bearings does not change significantly even under load. This makes it possible, if necessary, to transmit high pressure forces at different diameters.
- the pressure belt can comprise, for example, at least one metal band made of a resilient metal, in particular spring steel. It is possible that the pressure belt is formed exclusively by such a metal strip and has no further elements. However, it is also possible that, in addition to the at least one metal strip, further elements are provided in order, for example, to give the front side facing the workpiece a special design and / or special elasticity properties. For example, the metal strip may have on its front side a layer of rubber-elastic material in order to give the pressing side a limited elastic compliance.
- the pressing belt consists essentially of a rubber material reinforced by inelastic fibers extending in the belt direction. It is also possible to use plastic material in the production of the pressure belt. Several materials can be combined in a composite material to achieve the desired perpendicular to the strip direction bending elasticity with high tensile strength in the tape direction.
- cutting means for machining the workpiece surface are fastened to a front side of the pressing belt facing the workpiece.
- a face facing the workpiece may carry a cutting agent layer having cutting grains bonded in a bond.
- the pressing belt receives a large area abrasive front side, which can be adapted over a large area due to the bending elasticity of the pressure belt to the workpiece surface.
- It may, for example, be a cutting medium layer in which diamond grains or ceramic grains are present in a galvanically applied bond on the front side of a metallic pressing belt.
- a plurality of cutting bodies may be arranged at a mutual distance on the front side of a pressing belt facing the workpiece are arranged to each other.
- the cutting bodies may, for example, be cutting bars spaced apart from one another in the band direction and fastened by soldering, gluing or in some other way to the front side.
- the strip-shaped cutting body can extend substantially over the entire width of the pressure belt, possibly even only over a part thereof. As a rule, three or more such mutually spaced cutting body are provided.
- the engagement surfaces facing the workpiece can be adapted by profiling the workpiece geometry.
- strip-shaped cutting bodies in the tape direction are mounted at a distance next to each other, for example, more than 3 or more than 5 or more than 10 or more than 15 strip-shaped cutting body, eg between 5 and 10 such cutting body.
- cutting bodies with a small width may possibly be dispensed with a profiling of the workpiece facing engagement surface, whereby the production is simplified and cheaper.
- larger diameter ranges can be covered thereby
- a two-dimensionally extended field of relatively small cutting agent zones whose average diameter is substantially smaller than the width of the pressing belt transversely to the belt direction, is arranged on the front side of the pressing belt facing the workpiece.
- the small cutting agent zones are also referred to below as "pads". These can be cutting agent spots which are applied to the metallic pressing belt with the aid of a perforated mask in a coating process.
- the pads may also be formed by small cutting medium bodies which are attached by gluing, soldering or otherwise to the front of the pressure band in the desired arrangement.
- the cutting agent zones may for example have a rectangular cross-section with unequal or equal edge lengths, but they may also be round or oval.
- the average diameter of a cutting agent zone is 8 mm or less, for example in the range between about 1 mm and about 5 mm.
- the mutual distance of the cutting agent zones may be of the same order of magnitude, but possibly also above or below. However, the cutting agent zones should not touch. Thereby, a two-dimensionally extended field of cutting agent zones can be provided, between which cutting agent-free channels run in several directions.
- the area fraction of the channels can be of a similar order of magnitude as the area fraction of the cutting agent zones, so that reliable chip removal is ensured.
- the cutting agent zones may be unevenly or substantially evenly distributed within the field. An uneven distribution can be advantageous, for example, if certain shapes of the workpieces to be processed are to be produced. Frequently, however, a uniform distribution is advantageous to ensure a correspondingly uniform material removal.
- a two-dimensionally extended field of relatively small cutting agent zones may also be expedient for pressing devices for finish machining which have a substantially rigid pressure geometry.
- a rigid pressing element have a substantially C-shaped, largely cylindrically curved pressing portion whose concave inner side is covered with a field of such cutting agent zones.
- the workpiece facing the front of the Andrückbandes be substantially smooth and are formed for example by the resulting by rolling front of a metal strip.
- anti-slip means are provided according to the invention on a front side of the pressing belt facing the finishing belt, which make it difficult for the finishing belt to slip against the pressing belt when the pressing device is pressed.
- the anti-slip means may be formed by a suitable roughness of the front side.
- the front of the Andschreibbandes is covered with fine-grained cutting material, which may be attached, for example, to a metallic Andschreibband by means of a galvanic coating. When using finishing tape coated on both sides with a cutting agent, separate anti-slip devices are generally not necessary.
- a plurality of offset in the tape direction pressing elements made of elastically yielding material are attached to a facing the finishing tape front of the Andrückbandes.
- a flexurally elastic pressure band can be fastened in different ways to the associated carrier element.
- the bearings on the carrier element have a fixed distance from one another, so that the adaptability of the pressing device to different diameters results exclusively from the bending elasticity of the pressing belt.
- the pressure belt is clamped self-supporting between the two fixed bearings, so that results in a load-free state concave on the front sheet.
- the pressure length, with which the pressure belt at the back of the finishing belt is applied or the engagement length on the workpiece, at different diameters vary in the rule.
- at least one of the bearings is movably arranged on the carrier element.
- one of the bearings may be formed as a fixed bearing while the other bearing is a floating bearing.
- the attachment point of the pressure belt can be movably, for example linearly displaceable or pivotable, attached to the carrier element. In this way, it can be achieved that in each case the same pressure length or engagement length is present in the provided diameter range for different diameters, so that substantially the same surface pressure results at the workpiece surface at different diameters and in each case the same pressure force.
- the pressing device comprises two mutually spaced-apart deflection devices for deflecting a guided under tension on the deflection finishing belt, which forms a guided between the deflection a finishing belt section, the deflection in a working position of the pressing on opposite Sides of the workpiece portion are arranged such that the finish band portion rests under tension over a determined by the relative position between the deflecting means and the workpiece section wrap on the circumferential surface.
- the deflection can be designed to be movable, for example, as a rotatable pulleys. It is also possible to provide one or more fixed deflection devices with curved deflection contours.
- the deflecting elements may be formed, for example, by metal rollers with a cylindrical outer contour.
- the deflection elements can consist of an elastically yielding material on an outer section provided for guiding the finish section.
- a deflection element can also serve as a pressure element to press the finishing tape directly to the workpiece surface.
- finishing belt section bears against the circumferential surface over an angle of contact determined by the relative position between the deflecting devices and the workpiece section without interruption, whereby particularly gentle machining is possible.
- the wrap angle can be adjusted and varied steplessly by changing the relative position between the deflecting devices and the workpiece section.
- the pressing force is determined solely on the belt tension of the tensioned finish belt section.
- a finishing belt tensioning device for variably adjusting the belt tension of the finishing belt it is possible to adjust continuously variable belt tensions and thus different contact pressures which, in conjunction with the variability of the wrap angle, allow a large range of different surface pressures.
- the deflecting elements are displaced in the vicinity of the workpiece section in such a way that the finishing belt is pressed directly against the workpiece surface by the deflecting elements.
- higher contact forces can be generated in the region of the deflection elements than solely by the belt tension of the finishing belt section. It can form linear contact areas.
- wider contact zones can also be formed so that pressure force peaks are avoided.
- the pressing device comprises a separate, acting on the back of the finishing tape section Andschreibü for pressing the tensioned between the deflecting finishing belt section to the workpiece section.
- the pressing force acting on the workpiece surface can be decoupled from the belt tension of the finishing belt and higher contact pressures or surface pressures can be achieved.
- the pressing device comprises a support belt guided between the finishing belt and the deflecting devices for the rear support of the finishing belt resting on the workpiece section.
- the belt tension of the support belt can be adjusted variably and preferably continuously.
- the support band can be placed under tension so that the finishing belt is pressed by means of the support belt with a determined by the belt tension of the support belt pressing force against the peripheral surface.
- the support band is preferably made of a band material which has a higher tensile strength than the material of the finishing band, so that higher pressure forces can be generated than would be possible alone over the band tension of the finishing band. This results in additional freedom for the choice of material of the finishing tape.
- the pressing force can be controlled away by means of the support belt or another separate pressure unit or force-controlled generated and thus specified.
- a used finishing belt section can be replaced with a fresh finishing belt section by advancing the finishing belt by a predetermined belt advance distance during a processing break with unloaded finishing belt.
- the pressing device comprises a carrier element on which at least two pressing elements facing each other with the workpiece are pivotably mounted with the workpiece so that the pressing elements are in contact with the pressing surfaces on a rear side of a finishing belt resting against the workpiece section
- the pressing elements are in contact with the pressing surfaces on a rear side of a finishing belt resting against the workpiece section
- substantially radially align the workpiece section that the pressure surfaces lie substantially flat against the back of the finishing belt.
- the direct storage on the support element makes it possible to produce relatively large contact pressures.
- the pressing elements can be configured, at least in the area of the pressure surfaces, with an elastically somewhat yielding material in order to allow, to a limited extent, adaptation of the pressure surfaces to different curvatures of the workpiece surface.
- Fig. 1 schematically is a section of a device designed as a belt finishing machine for finishing of peripheral surfaces of substantially cylindrical workpiece sections on workpieces such as crankshafts or camshafts shown.
- the device is set up to machine a workpiece 10 in the form of a crankshaft.
- the workpiece is rotated by a rotating device not shown about its major axis 11 (workpiece axis) and simultaneously offset by an oscillating device in an axially short-stroke oscillating movement with strokes in the order of a few millimeters.
- the rotating device may, for example, have an electric geared motor, the oscillating device may comprise a cam drive operated as a function of the workpiece rotation.
- the rotating device and the oscillation device can engage, for example, at the output end of the crankshaft 10.
- the oscillation device may also contain a drive independent of the workpiece rotation, eg a pneumatic or electromechanical oscillator.
- the belt finishing device has a plurality of juxtaposed finishing units arranged on a common machine frame.
- the units are each very narrow to work simultaneously adjacent workpiece sections.
- the device shown has several finishing units for processing main bearings and intermediate finishing units for processing connecting rod bearings of the crankshaft 10.
- FIG. 1 Finistician shown in detail in the form of a processing pliers is intended to edit the substantially cylindrical peripheral surface 12 of a workpiece portion 13, which is a main bearing of the crankshaft 10 here.
- the Finishech 15 has two processing arms (finishing arms, pressure arms) 15A, 15B, which are mounted so pivotally about not shown, parallel pivot bearing, that their free ends are pivoted inwardly towards the workpiece to be machined or outwardly away from the workpiece.
- the machining arms can be hydraulically, pneumatically or mechanically moved towards or away from each other.
- the machining arms are connected to each other via a hydraulic or pneumatic power generator 16, which allows the machining arms to be pressed inwardly against the workpiece with a predetermined force F (arrows).
- a finishing belt conveyor provides a finishing belt 20 which is withdrawn from a supply roll, not shown, toward the entrance side of the finishing unit and, after use, fed from the exit side of the finishing unit in the exit direction 22 to a used finishing belt take-up reel.
- the finishing tape 20 comprises a substantially incompressible, low-stretch polyester film, which is covered on its facing the workpiece front 21 with granular cutting means.
- other types of finishing tapes are also usable, for example finishing tapes with cutting means on fabric underlay or finishing tapes with cutting means on paper underlay. Any conventional cutting means may be used, for example, ceramic cutting grains of alumina or silicon carbide, diamond cutting grains or cutting grains of cubic boron nitride or the like.
- a replaceable pressing device 50A, 50B is mounted, each adapted to press the cutting-material-covered finishing belt 20 against the peripheral surface 12 of the workpiece such that the Finishing tape is pressed against the peripheral surface over a wrap angle W with a provided for the machining operation pressing force.
- the two in Fig. 1 shown pressing means 50A, 50B are formed substantially identical and mirror-symmetrical to each other to machine diametrically opposite portions of the rotating workpiece portion.
- the finishing belt rests during processing, so that the cutting speed required for the material removal is exclusively generated by the rotational movement of the workpiece in combination with the superimposed axial oscillatory motion, to produce on the workpiece surface advantageous for the suitability of sliding bearing surface cross-grinding pattern.
- Fig. 1 a variant of the in the Fig. 2 shows shown embodiments and the Fig. 2 the same pressing device 50 once during the machining of a workpiece section with a relatively large diameter ( Fig. 2A ) and another time when machining a workpiece section with a comparatively smaller diameter ( Fig. 2B ) shows.
- the figures are not to scale. Typical percent diameter differences may be, for example, 1% or more depending on the application, eg, 5% or more, 10% or more, or 20% or more. In absolute terms, diameter differences may be on the order of one or more millimeters, for example more than 0.5 mm or more than 1 mm or more than 5 mm or more than 10 mm or more than 20 mm.
- a pressing device 50 has a rigid, substantially C-shaped support member 60 made of tool steel, which is firmly but interchangeably screwed with its back facing away from the C-opening to the respective processing arm 15A and 15B.
- the one-piece support member is divided into a solid support portion 61, with which the pressure element is attached to the respective processing arm, and two spaced-apart leg portions 62, 63, which face the workpiece in the installed state. Between the free ends of the leg portions 62, 63, a flexurally elastic pressure band 70 is fixed, whose two ends are respectively fixed to the free end of the associated leg portions 62, 63 by screws or otherwise on the bearings 72, 73.
- the free length of the pressure belt between the bearings 72, 73 is greater than the clear distance between the bearings, so that already formed on the unloaded pressure band a directed into the interior of the support member curvature such that the unloaded Andschreibband a workpiece facing, largely cylindrically curved concave pressure surface offers.
- the pressure belt 70 is in the example a band of spring steel with a typical thickness in the range of 0.1 to 3 mm and a measured width transverse to the belt width, which substantially corresponds to the width of the finishing belt 20, but may also be slightly less than the finishing belt width.
- the facing the finishing tape front 71 of the Andrückbandes 70 carries a Verrisonêt in the form of a layer of electrodeposited diamond grains administratf a grain (for example D10 or D20), which ensures that the pressed-finishing belt in the pressed state can not slip relative to the Andrükkelement.
- the pressing belt is essentially made of an elastomeric material which is preferably reinforced by inelastic fibers extending in the belt direction.
- the pressing device has two mutually spaced deflection means 91, 92 in the form of cylindrical pulleys, which in the variant of Fig. 1 are mounted on the respective leg portions of the support element, but in other cases, outside of the support member may be mounted separately rotatable.
- the pulleys may be movably mounted relative to the support member to change the relative position between pulleys and Andschreibband.
- the finishing belt is guided under tension over the deflection devices and forms between the deflection devices a tensioned with a belt tension finishing belt section 21.
- the pulleys are arranged on opposite sides of the workpiece section. Due to the relative position between the deflecting devices and the workpiece section, the wrapping angle W is determined, via which the finishing belt rests flat against the workpiece surface without interruption.
- the finishing belt is passed while still lifted pressing elements between the workpiece section and pressure element and is normally only at the pulleys 91, 92 under tension.
- the tensioned finishing belt then lays around the respectively facing region of the workpiece section until the corresponding pressing belt of the pressing device is pressed onto the outwardly facing rear side of the finishing belt.
- the pressure belt adapts flexibly to the diameter to be machined while changing its curvature and presses the finishing belt clamped between the pressure belt and the workpiece surface over a large area in a single, continuous pressure area against the workpiece section.
- FIGS. 2A and 2B clearly shows that arise depending on the diameter of the workpiece to be machined workpiece different wrap angle W and also different, measured in the circumferential direction engagement lengths L of the finishing belt.
- the engagement length is the length measured in the circumferential direction of the workpiece surface with which the finishing belt rests against the workpiece surface under a pressure generated by the pressure belt.
- the strip length of the in-band direction quasi inelastic, ie, stretch-proof pressure band between the two fixed bearings 72 and 73 is intended in the FIGS. 2A and 2B be equal.
- Fig. 2A This results in a wrap angle W2A and an engagement length L2A.
- a finishing machine can be constructed in which all finishing units are equipped with identical pressure units.
- One set of finishing units can act on relatively large stroke bearing sections, while intermediate finishing units with identical pressing devices can engage in comparison to smaller in diameter Hublagerabitesen.
- a second workpiece section is processed with a different diameter from the first diameter, wherein the pressure device continuously adapts to the respective different diameters.
- the difference in diameter may in many embodiments be in the range of one or more millimeters and / or in the range of 1% or more, for example in the range between about 50mm and about 60mm, but also above or below.
- the diameter of the workpiece section to be machined determines the geometry of the pressing element when it is brought into the pressing position.
- the pressure element adapts to the geometry of the workpiece section.
- Such pressing devices are therefore provided primarily for improving the surface finish of a workpiece section in cases where a shape correction is not required and also not desired.
- a shape correction especially for short-wave defects, is possible in some cases because the support band can not be uniformly deformed in all directions.
- the basic structure of the pressing device 350 with carrier element 360 and pressing belt 370 and deflection rollers 392, 393 and fixed bearings 372, 373 is essentially the same as in the embodiments according to FIG Fig. 1 and 2 , In contrast to those embodiments, however, three offset in the tape direction pressing elements 375A, 375B, 375C are attached to the finishing tape facing the front of the Andrückbandes, which consist of an elastically yielding material, for example of a relatively hard elastomeric material, such as Vulkollan®.
- the pressing belt 370 is therefore not directly in the working position on the back of the finishing tape, but is supported by the pressing elements on the back, which in turn press the finishing tape at defined predetermined and offset in the circumferential direction zones on the peripheral surface of the workpiece section. Since the pressure elements press only in spatially limited areas on the finishing belt, larger surface pressures can be generated in these areas with the same external contact pressure F as in large-scale investment of a pressing belt. In addition, a more constant surface pressure is often possible. Furthermore, the supply of cooling lubricant and the chip removal are facilitated.
- a metallic pressing belt is provided on its front side facing the finishing belt with a layer of an elastomeric material so that a large-area and uninterrupted contact with the finishing belt rear side is possible.
- a pressing device 450 is shown, which differs in structure and function in principle from the previous embodiments.
- the pressing device has a substantially C-shaped or U-shaped support member 460 with a solid base portion 461 and two workpiece facing legs 462, 463.
- a metallic Andschreibband 470 is at two spaced-apart bearings 472, 473 with the free ends of Leg 462, 463 connected. While the leg 462 shown on the left offers a bearing 472 for the pressure element, the leg 463 shown on the right is designed as a pivot arm, which is articulated both on the base portion 461, and on the facing end portion of the pressure band 470.
- a floating bearing is formed on the right leg and the clear distance between the bearing points 472, 473 is variable and adjusts depending on the diameter of the workpiece section.
- This construction also ensures that the engagement length L remains substantially the same regardless of the diameter along the circumference of the workpiece section, so that essentially the same surface pressure for the finishing belt can be set for workpieces of different diameters for the same pressure force F.
- the wrap angle W changes depending on the diameter of the workpiece portion such that the wrap angle increases the smaller the diameter becomes.
- an optional adjusting device 410 in the form of a variable-length control element can be provided between the solid base portion 461 and the pivotable leg 463.
- One end of the actuator is fixed to the base portion 461, the other end to the pivot lever 463 at a distance from the bearing, with the pivot lever 463 is attached to the base portion 461.
- the length of the adjusting element 410 between its attachment points on the base portion 461 and the pivot arm 463 be adjusted so that the bearing 473 toward fixed bearing 472 to reduce the mutual distance or in the opposite direction to increase the mutual Distance can be adjusted.
- the radius of curvature of the pressing belt 410 is also reduced, so that smaller diameter workpiece sections can be machined over a large area. If a workpiece section with a larger diameter is then to be machined, the clear distance between the fixed bearing points 472, 473 is increased with the aid of the adjusting device 410, so that the pressure band reduces its curvature in the sense of extension and a larger radius of curvature is set, which corresponds to the larger workpiece diameter is adjusted.
- the actuation of the adjustment device 410 can also be carried out automatically by the operator or, if the pressure device is suitably designed, by the finishing device itself.
- FIGS. 5 and 6 Based on FIGS. 5 and 6 are not the claimed invention associated pressing devices 550 and 650, each with two mutually spaced deflection means in the form of deflection rollers, which serve to deflect a guided under tension over the deflection finishing belt.
- the finishing belt forms between the deflecting a tensioned with a belt tension finishing belt section.
- a finishing belt tensioning device not shown, the belt tension of the finishing belt can be variably adjusted continuously.
- the pulleys are arranged in the shown working positions of the pressing device on opposite sides of the workpiece portion such that the clamping portion clamped between them rests flat under tension on the peripheral surface of the workpiece portion.
- the wrap angle W with which the finishing tape on the workpiece portion rests without interruption, determined by the relative position between the deflectors 592, 593 and the workpiece section 13 in such a way that at the same diameter of the workpiece section, a larger wrap angle ( Fig. 5B ), the farther the pressing member is shifted toward the workpiece portion (W5A ⁇ W5B).
- the wrap angle, and thus the engagement length is thus infinitely adjustable by changing the relative position between the deflection and the workpiece section.
- the pressing force acting in the looping region or in the region of the engagement length is set exclusively in the pressing device 550 via the strip tension of the finishing strip with the aid of the finishing strip tensioning device.
- the deflection devices can also be brought so far to the workpiece surface that they press the finishing strip directly against the workpiece surface.
- Fig. 6 schematically illustrated by the pressing device 650.
- non-elastic rollers as can be used, for example, in the embodiments shown above, arise in this way two spaced circumferentially spaced line contacts with increased surface pressure, with the finishing strip between the line contacts over a large area with lower surface pressure.
- the deflection rollers 692, 693 on the outer section provided for guiding the finishing strip consist of an elastically yielding material, for example made of a relatively hard elastomeric material. In this case, more or less narrow, areally extended contact zones of increased surface pressure can be generated by the exaggerated elastic deformation of the deflection rollers.
- the surface pressure in the area of the wrap angle is in the variants with free-span finishing tape section (see Figs. 5A and 5B ) limited by the tensile strength of the finishing belt.
- the in Fig. 7 Not shown belonging to the claimed invention variant of a pressing device 750 between the finishing belt 20 and the roller-shaped deflection 792, 793 guided support belt 780 for back support of the voltage applied to the workpiece section 13 finishing tape.
- This support band or clamping band can be made more stable and thus transmit more tensile force, so that the surface pressure in the region of the wrap can be increased thereby.
- the support belt 780 is designed as an endless belt and has a bandwidth which is slightly smaller than the width of the finishing belt.
- the support belt is guided in the region of the deflection rollers 792, 793 between the outer side and the finishing belt and is guided on the side facing away from the workpiece via two movably mounted deflection rollers 795, 796, which are associated with a support belt tensioning device for the variable adjustment of the belt tension of the support belt.
- the belt tension of the endless belt 780 can be varied steplessly by displacing the deflection rollers 795, 796 relative to the other deflection rollers 792, 793.
- the clamping band can be fixed, ie clamped immovably in the direction of the strip, so that the ribbon is moved relative to the clamping band along this during tape transport of the finishing belt between individual processing stages.
- the support belt moves in a tape transport of the finishing belt in the same direction at the same speed with this.
- a separate transport means for moving the support belt may be provided which drives, for example, one of the rollers 795, 796 at the finish belt feed. If the finishing belt rests against the support belt during belt transport with sufficient pressure force, it may also be sufficient to make the support belt passively movable, so that the support belt is taken along by the finishing belt during belt transport.
- the finishing belt and the support belt are moved on simultaneously during the machining operation, so that during a processing phase, continuously or in stages, fresh, unused finishing belt is tracked.
- a part of the chip removal can be done on the finishing belt, which can take away removed chips on further transport.
- the rotational movement of the workpiece section 13 can be utilized by providing one of the rollers 795, 796 with a controllably controllable braking device which counteracts the entrainment force of the rotating workpiece section and thus prevents movement of the finishing belt.
- Support belt with controlled speed and possibly with breaks possible.
- rollers 795, 796 can be connected to a corresponding drive, for example an electric motor, which can be controlled via the control of the processing machine according to a predefinable program.
- This controlled movement of finishing belt and support belt during a processing phase can be useful regardless of the described diameter adjustment and also be provided with pressure devices, which are not designed for a continuous adjustment to different diameters of a larger diameter range.
- pressing device 850 in Fig. 8 are similar to the embodiments of the Fig. 1 to 3 two pulleys 892, 893 provided over the relative position to the workpiece portion of the wrap can be determined.
- the pressing device also comprises a carrier element 860, which has a C-shaped recess on its side facing the workpiece. Along the circumference of the recess, three mutually circumferentially spaced pressure elements 880A, 880B, 880C are mounted.
- Each of the pressing elements is mounted pivotably relative to the carrier element 860 about a pivot axis 881A, 881B, 881C aligned axially parallel to the workpiece axis, this pivotability allowing a substantially radial alignment of the pressing elements to the curved workpiece section.
- the workpiece facing end portions of the pressing elements they are coated with an elastomer layer, the workpiece-facing surface forms a limited resilient pressure surface with which the finishing tape is pressed against the workpiece surface.
- the pressing elements Due to the oscillating mounting of the pressing elements, it is achieved that, when the pressing surfaces are applied to the rear side of the finishing belt, which is stretched over the workpiece section, the pressing elements are aligned substantially radially relative to this workpiece section so that the pressing surfaces lie substantially flat against the rear side of the finishing belt.
- the larger the diameter of the workpiece section the lower the relative skew angle between the pressing elements.
- Due to the pivotability of the pressing elements adaptation to greatly differing workpiece section diameters is possible, wherein at the same time the elasticity in the area of the pressure surfaces achieves that even with different curvatures of the workpiece surface in each case a full-surface contact between pressure element and finishing belt is present.
- this arrangement is relatively rigid, so that relatively large surface pressures and thus a high material removal rate can be achieved with this variant in the region of the pressure elements.
- more than three pressing elements may be provided, for example, 5, 7 and 9 pressing elements or more.
- the arrangement density of the pressure elements only has to take into account that sufficient clearance for the mutual pivoting of the pressure elements remains in the diameter range provided for the pressure device.
- the oscillatingly received pressing elements can be pre-ground to a mean diameter of the intended diameter range, so that only minor surface shape adjustments are required when pressing against this middle curvature.
- a carrier element 960 made of tool steel has, on its side facing the workpiece section 13, a C-shaped recess which is delimited on both sides by support sections 961 with a semi-cylindrical outer contour.
- clamping devices 965 On the opposite outer sides of the support sections are clamping devices 965 for clamping fixing the ends of a Andrückbandes 970 on the support member 860.
- the clamping devices each have a receiving slot for each associated end of the Andrückbandes 970 and a clamping screw, with the help of the introduced Andschreibband in the receiving slot can be clamped.
- the pressure band is guided over the half-cylindrical curved, serving as bearings supporting portions in the interior of the recess that forms a directed into the interior of the support member curvature on the unloaded pressure band, the konkavzylindrisch curved front of the Andschreibbandes as a pressure surface for the finishing belt 20 serves.
- the pressure belt 970 is a spring steel strip with approx. 0.3mm material thickness.
- the dot-dashed circles on the workpiece section 13 represent to scale the minimum diameter 50 mm and the maximum diameter 58 mm of workpiece sections that can be processed with the aid of this pressing device.
- the in the 10 and 11 not shown belonging to the claimed invention pressing devices are provided for finishing devices that do not work with finishing tape, but with abrasive bodies (so-called. Finishing stones), which are filled with cutting means front surfaces are pressed directly onto the workpiece surface to be machined.
- the carrier element 1060 of the pressing device 1050 in Fig. 10 has the same structure as the carrier element 960 Fig. 9 ,
- the clamping devices 1065 for clamping the ends of the pressing belt 1070 have the same structure.
- the pressure belt is a spring steel strip with about 0.3 mm thickness and carries on its the workpiece portion 13 facing the front three mutually spaced cutting material in the form of diamond strips 1080, whose length in the transverse direction of the Andrückbandes corresponds substantially to the width of the Andschreibbandes in the transverse direction.
- the width of the diamond strips (measured in the longitudinal direction of the drive belt) is in each case dimensioned so that the pressure angle in the circumferential direction of a single diamond strip is in the range between approximately 10 ° and approximately 20 °, for example 15 °.
- the front surfaces facing the workpiece are each provided with a concave-cylindrical profiling, so that each of the diamond strips abuts over the entire width of the workpiece surface over a large area.
- the mutual spacing of the diamond strips is greater than the width of the diamond strips in the strip direction and may for example be between 120% and 200% of this width.
- the three cutting material bodies 1070 cover an overall pressure angle of approximately 135 °. Often the total engagement angle is between 90 ° and 150 °.
- the carrier element 1160 and the clamping devices 1165 are identical to the embodiments of FIGS. 9 and 10 , also in this embodiment, the spring steel pressure belt 1170 carries on its front side facing the workpiece a plurality of cutting material body 1180, which may be soldered or glued to the metallic pressure band, for example.
- the pressure angle in the circumferential direction is in each case significantly less than 10 °.
- the diamond strips for example, hard, ceramic honing stones or honing stones can be used.
- the mutual distance between the cutting material bodies in the strip direction is less than the width of the cutting material body and may for example be between 50% and 90% of this width.
- the mutual Distance should be such that the individual cutting material body does not touch even in the largest possible intended curvature (smallest possible provided radius of curvature of the workpiece section) in the region of the engaging sides.
- high surface pressures can be used over the entire engagement range of, for example, 90 ° to 150 ° and an effective coolant supply and removal of chips is ensured by the transversely extending channels formed between the strips.
- Fig. 12 The front of a two-dimensionally extended array of relatively small, substantially square Schneidkarzonen 1280 is arranged, the average diameter in the example between 3 and 5 mm, and thus is substantially smaller than the width B of the Andrückbandes transversely to the tape direction (here about 25 to 30 mm).
- the uniformly distributed cutting agent zones are small coating spots with galvanically bonded diamond grains, which are applied by means of a perforated mask in a coating process on the metallic pressure band.
- the cutting agent zones or pads may also be formed by glued or soldered Scheidraunabête.
- the mutual distance of the cutting agent zones is, for example, between 3 mm and 5 mm, so that a two-dimensionally extended field of cutting agent zones is formed, between which cutting agent-free channels 1285 extend in the longitudinal direction and in the transverse direction of the pressing band.
- the surface portion of the channels is in a similar order of magnitude as the surface portion of the cutting agent zones, so that a reliable cooling lubricant supply and chip removal is ensured.
- the field of cutting agent zones may, for example, instead of the cutting body 1080 or 1180 in the embodiments in Fig. 10 or 11 be provided.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Turning (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Andrückeinrichtung zum Andrücken von Schneidmittel an Umfangsflächen von im Wesentlichen zylindrischen Werkstückabschnitten bei einer Finishbearbeitung, auf eine mit mindestens einer solchen Andrückeinrichtung ausgestatteten Vorrichtung zur Finishbearbeitung sowie auf ein Verfahren zur Finishbearbeitung von Umfangsflächen im Wesentlichen zylindrischer Werkstückabschnitte.The invention relates to a pressing device for pressing cutting means on circumferential surfaces of substantially cylindrical workpiece sections in a finish machining, to a device for finishing machining equipped with at least one pressing device, and to a method for finishing peripheral surfaces of substantially cylindrical workpiece sections.
Das Finishen ist ein Feinbearbeitungsverfahren, mit dem die Umfangsflächen von im Wesentlichen zylindrischen Werkstückabschnitten an Werkstücken wie Kurbelwellen, Nockenwellen, Getriebewellen oder anderen Bauteilen für Kraft- und Arbeitsmaschinen zur Erzeugung einer gewünschten Oberflächenfeinstruktur bearbeitet werden. Beim Finishen wird ein mit körnigem Schneidmittel besetztes Bearbeitungswerkzeug mittels einer Andrückeinrichtung über einen Eingriffswinkel mit einer Andrückkraft an die zu bearbeitende Umfangsfläche angedrückt. Zur Erzeugung der für den Materialabtrag erforderlichen Schnittgeschwindigkeit wird das Werkstück um seine Werkstückachse gedreht. Gleichzeitig wird eine parallel zur Werkstückachse oszillierende Relativbewegung zwischen dem Werkstück und dem an der Umfangsfläche anliegenden Bearbeitungswerkzeug erzeugt. Hierzu kann das Werkstück in eine axiale Oszillationsbewegung versetzt werden. Alternativ oder zusätzlich ist es auch möglich, dass die Oszillationsbewegung durch das Bearbeitungswerkzeug erzeugt wird. Durch die Kombination der Rotationsbewegung des Werkstückes und der überlagerten Oszillationsbewegung kann ein so genanntes Kreuzschliffmuster erzeugt werden, wodurch die bearbeiteten Werkstückumfangsflächen z.B. als Laufflächen für Gleitlager oder Wälzlager oder dergleichen besonders geeignet sind. Bei dem zu bearbeiteten Werkstückabschnitt kann es sich beispielsweise um ein Hauptlager oder ein Hublager einer Kurbelwelle oder um ein Nockenwellenlager handeln.Finishing is a finishing process that processes the peripheral surfaces of substantially cylindrical workpiece sections on workpieces such as crankshafts, camshafts, transmission shafts, or other components for power and work machines to produce a desired surface finish. When finishing a busy with granular cutting tool machining tool is pressed by a pressing device over a pressure angle with a pressing force to the peripheral surface to be machined. To produce the cutting speed required for the material removal, the workpiece is rotated about its workpiece axis. At the same time, a relative movement that oscillates parallel to the workpiece axis is produced between the workpiece and the machining tool resting against the peripheral surface. For this purpose, the workpiece can be set in an axial oscillation movement. Alternatively or additionally, it is also possible that the oscillatory movement is generated by the machining tool. Through the combination of the rotational movement of the workpiece and the superimposed oscillatory motion, a so-called cross-cut pattern can be created, whereby the machined workpiece peripheral surfaces e.g. As running surfaces for plain bearings or bearings or the like are particularly suitable. The workpiece section to be machined may be, for example, a main bearing or a crank bearing of a crankshaft or a camshaft bearing.
Es können unterschiedliche Bearbeitungswerkzeuge verwendet werden. Beim sogenannten Bandfinishen wird ein Finishband mit Hilfe einer Andrückeinrichtung an die Werkstückoberfläche angedrückt. Ein Finishband hat einen bandförmigen flexiblen Träger, bei dem mit Hilfe eines Bindemittels Schneidkörner auf der dem Werkstück zuzuwendenden Vorderseite aufgebracht sind. Häufig dient ein reißfester, dehnungsarmer Polyesterfilm als Trägermaterial für den Korn-Bindemittelaufbau. Manchmal werden auch Gewebebänder verwendet. Nach Abschluss oder im Verlauf eines Bearbeitungszyklus kann das zur Bearbeitung verwendete Finishband weitergefördert werden, so dass jeweils frisches Schneidmittel zum Materialabtrag zur Verfügung steht. Dadurch können gut reproduzierbare Ergebnisse erzielt werden.Different editing tools can be used. In so-called band finishing, a finishing band is pressed against the workpiece surface with the aid of a pressing device. A finishing belt has a band-shaped flexible carrier in which cutting grains are applied on the front side facing the workpiece with the aid of a binder. Frequently, a tear-resistant, low-stretch polyester film serves as a carrier material for the grain-binder structure. Sometimes fabric tapes are also used. After completion or during a processing cycle, the finishing belt used for processing can be further promoted, so that each fresh cutting material is available for material removal. As a result, well reproducible results can be achieved.
Als Bearbeitungswerkzeug können auch sogenannte Finishsteine verwendet werden. Dabei handelt es sich um im Wesentlichen starre Schneidkörper, bei denen das körnige Schneidmittel durch Kunstharz oder keramisch oder galvanisch (in Metallmatrix) oder auf andere Weise gebunden ist. Die dem Werkstück zugewandte Seite der Schleifkörper ist häufig entsprechend der Geometrie der zu bearbeitenden Werkstückoberfläche profiliert, um einen großflächigen Bearbeitungseingriff sicherzustellen.As a machining tool also so-called finishing stones can be used. These are essentially rigid cutting bodies in which the granular cutting agent is bound by synthetic resin or ceramic or galvanic (in metal matrix) or in some other way. The workpiece-facing side of the abrasive body is often profiled according to the geometry of the workpiece surface to be machined to ensure a large-scale machining engagement.
Bei herkömmlichen Vorrichtungen zur Finishbearbeitung mittels Bandfinischen werden zum Andrükken eines Finishbandes an die zu bearbeitende Werkstückoberfläche Andrückeinrichtungen mit so genannten Finishschuhen verwendet. Ein Finishschuh hat einen im Wesentlichen C-förmigen Andrückabschnitt, dessen Krümmungsradius unter Berücksichtigung der Dicke des Finishbandes so an den Solldurchmesser des zu bearbeitenden Werkstückabschnittes angepasst ist, dass das Finishband mit Hilfe des Finishschuhes während der Bearbeitung im Wesentlichen flächig an die Umfangsfläche des Werkstücksabschnittes angedrückt wird. Mit solchen im Wesentlichen starren Andrückelementen kann die Kontur des Finishwerkzeuges dem zu bearbeitenden Werkstückabschnitt aufgeprägt werden, sodass eine gezielte Einstellung der Makroform des Werkstückabschnittes möglich ist. Soll ein Werkstückabschnitt mit einem anderen Durchmesser bearbeitet werden, so muss das Andrückelement durch ein Andrückelement mit entsprechend anderem Radius des C-förmigen Abschnittes ausgetauscht werden.In conventional devices for finishing processing by means of belt finishes, pressing devices with so-called finish shoes are used for pressing a finishing belt against the workpiece surface to be machined. A finishing shoe has a substantially C-shaped pressing portion whose radius of curvature, taking into account the thickness of the finishing band, is adapted to the nominal diameter of the workpiece portion to be machined, that the finishing band is pressed substantially flat against the peripheral surface of the workpiece portion during processing by means of the finishing shoe , With such essentially rigid pressing elements, the contour of the finishing tool can be impressed on the workpiece section to be machined so that a targeted adjustment of the macro-shape of the workpiece section is possible. If a workpiece section is to be machined with a different diameter, then the pressure element must be replaced by a pressure element with a correspondingly different radius of the C-shaped section.
Aus der
Da der Wechsel der Andrückelemente nicht einfach ist, wurden schon Andrückelemente vorgeschlagen, mit denen Werkstückabschnitte mit unterschiedlich großen Durchmessern bearbeitet werden können.Since the change of the pressing elements is not easy, already pressing elements have been proposed with which workpiece sections can be edited with different diameters.
Aus der
Aus der
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung zur Finishbearbeitung von Umfangsflächen an im Wesentlichen zylindrischen Werkstückabschnitten bereitzustellen, die es erlauben, bei geringem apparativen Aufwand Werkstücke mit Werkstückabschnitten unterschiedlicher Durchmesser zu bearbeiten und dabei unabhängig vom Durchmesser der Werkstückabschnitte eine hohe Oberflächengüte zu erzielen.The invention has for its object to provide a method and apparatus for finishing peripheral surfaces of substantially cylindrical workpiece sections, which allow to work with small equipment expense workpieces with workpiece sections of different diameters and thereby achieve a high surface quality regardless of the diameter of the workpiece sections ,
Zur Lösung dieser Aufgabe stellt die Erfindung eine Andrückeinrichtung mit den Merkmalen von Anspruch 1 sowie eine Vorrichtung mit den Merkmalen von Anspruch 9 und ein Verfahren mit den Merkmalen von Anspruch 10 bereit.To achieve this object, the invention provides a pressing device with the features of claim 1 and a device with the features of claim 9 and a method with the features of
Vorteilhafte Weiterbildungen sind in den abhängigen Ansprüchen angegeben.Advantageous developments are specified in the dependent claims.
Eine Besonderheit der Andrückeinrichtung besteht darin, dass die Andrückeinrichtung zu Bearbeitung von Werkstückabschnitten unterschiedlicher Durchmesser mit einem Durchmesserunterschied von mindestens 0.1 mm stufenlos anpassbar ist. Diese stufenlose Anpassung wird bedingt durch die Konstruktion der Andrückeinrichtung möglich, so dass kein Wechsel von Andrückeinrichtungen notwendig ist, wenn Werkstückabschnitte unterschiedlicher Durchmesser mit einem Durchmesserunterschied von 0.1 mm oder mehr bearbeitet werden sollen. Durch diese Anpassungsfähigkeit der Andrückeinrichtung an stark unterschiedliche Durchmesser ist es möglich, dass sich bei allen Durchmessern im Durchmesserbereich bei der Bearbeitung über den gesamten durch die Andrückeinrichtung definierten Eingriffswinkel eine großflächiger Bearbeitungseingriff zwischen der abrasiven Seite des Finishbandes bzw. den mit Schneidemittel besetzten Schneidkörpern und der Werkstückoberfläche bildet, wodurch Oberflächen hoher Güte erzeugt werden können.A special feature of the pressing device is that the pressing device for machining workpiece sections of different diameter with a difference in diameter of at least 0.1 mm is continuously adjustable. This stepless adjustment is possible due to the construction of the pressing device, so that no change of pressure devices is necessary when workpiece sections of different diameter to be processed with a difference in diameter of 0.1 mm or more. Due to this adaptability of the pressing device to greatly differing diameters, it is possible for all diameters in the diameter range during machining to have a large-area machining engagement between the abrasive side of the finishing belt or the cutting bodies occupied by cutting means and the workpiece surface over the entire pressure angle defined by the pressing device forms, which surfaces of high quality can be generated.
Die Anpassung der Andrückeinrichtung an den Durchmesser des Werkstückabschnittes erfolgt somit unter Änderung der Geometrie der Andrückeinrichtung, wobei die Andrückeinrichtung konstruktiv für relativ große definierte Geometrieänderungen, d.h. für relativ große Änderungen der Krümmung der durch die Andrückeinrichtung bereitgestellten Andrückfläche ausgelegt ist. Da sich bei erfindungsgemäßen Andrückeinrichtungen die Andrückeinrichtung an den Durchmesser des Werkstückabschnitts stufenlos anpasst bzw. anpassen lässt, ist im gesamten Durchmesserbereich eine großflächige Bearbeitung möglich, wodurch hohe Oberflächengüten erzielbar sind.The adaptation of the pressing device to the diameter of the workpiece section is thus carried out by changing the geometry of the pressing device, wherein the pressing device constructively for relatively large defined geometry changes, i. is designed for relatively large changes in the curvature of the pressure surface provided by the pressing device. Since, in the pressing devices according to the invention, the pressing device can be continuously adapted or adapted to the diameter of the workpiece section, large-area machining is possible over the entire diameter range, as a result of which high surface qualities can be achieved.
Mit erfindungsgemäßen Andrückeinrichtungen kann in einem vorgegebenen Durchmesserbereich ΔD = DMAX - DMIN zwischen einem minimalen Durchmesser DMIN und einem maximalen Durchmesser DMAX jeder Durchmesser bearbeitet werden, wobei bei jedem Durchmesser ein flächenhafter Kontakt zwischen Schneidmittel und zu bearbeitender Werkstückoberfläche mit einer vorgesehenen Andrückkraft bzw. Andrückkraftverteilung sichergestellt werden kann.With pressing devices according to the invention, each diameter can be machined in a predetermined diameter range ΔD = D MAX - D MIN between a minimum diameter D MIN and a maximum diameter D MAX , wherein at each diameter a surface contact between the cutting means and the workpiece surface to be machined is provided with an intended pressing force or force Pressure force distribution can be ensured.
Bei manchen Ausführungsformen kann der Durchmesserunterschied mindestens 1% oder mindestens 5% oder mindestens 10% betragen, bei anderen Ausführungsformen auch mindestens 15% oder mindestens 20% oder mehr. Manche Andrückeinrichtungen sind derart ausgelegt, dass in einen Durchmesserbereich mit einem Durchmesserunterschied ΔD von mindestens 0,1 mm oder mindestens 1 mm zwischen einem minimalen und einen maximalen Durchmesser bei einem mittleren Durchmesser zwischen 20 mm und 70 mm jeder Durchmesser bearbeitbar ist. Manche Ausführungsformen sind beispielsweise so ausgelegt, dass in einem Durchmesserbereich zwischen ca. 50mm und ca. 70mm jeder Durchmesser bearbeitet werden kann. Damit sind beispielsweise die meisten Kurbelwellen gängiger PKW-Motoren mit Hilfe eines einzigen Typs von Andrückeinrichtung gut zu bearbeiten. Selbstverständlich können Andrückeinrichtungen auch für andere Durchmesserbereiche ausgelegt sein, beispielsweise für einen Durchmesserbereich mit einem Durchmesserunterschied von mindestens 2mm oder mindestens 8mm oder mindestens 15mm oder mehr, z.B. bei einem mittleren Durchmesser von 20 mm oder 40 mm oder 50 mm oder 60 mm oder mehr. Auf diese Weise kann mit einer einzigen oder mit wenigen Andrückeinrichtungen ein relativ großer Durchmesserbereich abgedeckt werden. Für die Bearbeitung von Wellen kann es beispielsweise sinnvoll sein, einen Durchmesserbereich von ca. 20mm bis ca. 80mm abzudecken. Damit sind beispielsweise Wellen für Kompressoren bearbeitbar, deren mittlere Durchmesser häufig im Bereich um 20mm liegen. Bei Kurbelwellen für PKWs liegen typische Durchmesser häufig in der Größenordnung von ca. 50mm, so dass beispielsweise Durchmesserbereiche zwischen 40 und 50mm und/oder 50 und 60mm abgedeckt werden können. Bei Kurbelwellen für Lastkraftwagen liegen die typischen Durchmesser üblicherweise etwas höher, beispielsweise im Bereich um 70mm.In some embodiments, the difference in diameter may be at least 1% or at least 5% or at least 10%, in other embodiments also at least 15% or at least 20% or more. Some pressing devices are designed such that, in a diameter range ΔD of at least 0.1 mm or at least 1 mm between a minimum and a maximum diameter with an average diameter between 20 mm and 70 mm, each diameter can be machined. For example, some embodiments are designed so that any diameter can be machined in a diameter range between about 50mm and about 70mm. Thus, for example, most crankshafts common car engines with the help of a single type of pressing device to work well. Of course, pressing devices can also be designed for other diameter ranges, for example for a diameter range with a difference in diameter of at least 2 mm or at least 8 mm or at least 15 mm or more, for example with an average diameter of 20 mm or 40 mm or 50 mm or 60 mm or more. In this way, a relatively large diameter range can be covered with a single or with a few pressing devices. For the machining of waves, it may be useful, for example, a diameter range of about 20mm to about 80mm cover. Thus, for example, shafts for compressors can be machined, whose average diameters are often in the range of 20mm. For crankshafts for cars typical diameters are often in the order of about 50mm, so that, for example, diameter ranges between 40 and 50mm and / or 50 and 60mm can be covered. For crankshafts for trucks, the typical diameters are usually slightly higher, for example in the range of 70mm.
Die Andrückeinrichtung kann so ausgelegt sein, das die Anpassung der Andrückeinrichtung an den Durchmesser des Werkstückabschnittes unter Änderung der Geometrie der Andrückeinrichtung selbsttätig bzw. automatisch stattfindet, wenn das Schneidmittel mit Hilfe der Andrückeinrichtung an die gekrümmte Umfangsfläche des Werkstückabschnitts angedrückt wird. Derartige Andrückeinrichtungen werden im Folgenden auch als "passive" Andrückeinrichtungen bezeichnet und zeichnen sich dadurch aus, dass die beim Andrücken entstehenden Andrückkräfte zur Einstellung des richtigen Durchmessers genutzt werden.The pressing device can be designed so that the adaptation of the pressing device to the diameter of the workpiece section takes place automatically or automatically changing the geometry of the pressing device when the cutting means is pressed by means of the pressing device to the curved peripheral surface of the workpiece section. Such pressing devices are also referred to below as "passive" pressing devices and are characterized by the fact that the pressing forces arising during pressing are used to set the correct diameter.
Bei anderen Varianten ist die Andrückeinrichtung als verstellbare Andrückeinrichtung ausgelegt, deren Andrückgeometrie - bestimmt durch den Krümmungsradius der an die Rückseite des Finishbandes anzudrückenden Andrückfläche(n) - mit Hilfe eines oder mehrerer Stellglieder, z.B. Stellschrauben, automatisch oder durch einen Bediener an den Durchmesser des Werkstückabschnittes stufenlos angepasst werden kann, bevor die Andrückeinrichtung das Schneidmittel an das Werkstück andrückt. Solche Einrichtungen werden im Folgenden auch als "aktive" bzw. "aktiv einstellbare" Andrückeinrichtungen bezeichnet. Der jeweils eingestellte Krümmungsradius der Andrückfläche(n) ist nach der Einstellung in der Regel fest vorgegeben und weitestgehend unveränderlich, so dass solche Andrückeinrichtungen auch zur Formkorrektur bzw. zur Durchmesserveränderung des bearbeiteten Werkstückabschnittes genutzt werden können.In other variants, the pressure device is designed as an adjustable pressure device, whose Andrückgeometrie - determined by the radius of curvature of the pressure to be pressed on the back of the finishing surface (s) - by means of one or more actuators, e.g. Adjusting screws, automatically or by an operator to the diameter of the workpiece portion can be adjusted continuously before the pressing device presses the cutting means to the workpiece. Such devices are also referred to below as "active" or "actively adjustable" Andrückeinrichtungen. The respectively set radius of curvature of the pressing surface (s) is usually fixed and generally immutable after adjustment, so that such pressing devices can also be used for shape correction or for changing the diameter of the machined workpiece section.
Mit erfindungsgemäßen Andrückeinrichtungen sind Feinbearbeitungsverfahren möglich, bei denen mit derselben Andrückeinrichtung zunächst ein erster Werkstückabschnitt mit einem ersten Durchmesser und danach ein zweiter Werkstückabschnitt mit einem vom ersten Durchmesser verschiedenen zweiten Durchmesser bearbeitet wird, wobei jeweils eine stufenlose Anpassung der Andrückeinrichtung an die jeweiligen Durchmesser erfolgt.With pressing devices according to the invention, fine machining methods are possible in which first a first workpiece section having a first diameter and then a second workpiece section having a second diameter different from the first diameter are machined with the same pressing device, wherein in each case a continuous adaptation of the pressing device to the respective diameters.
Die Andrückeinrichtung umfasst mindestens ein biegeelastisches Andrückband, das an zwei mit einem festen Abstand zueinander angeordneten Lagern eines Trägerelementes fixiert ist. Durch die Biegeelastizität des Andrückbandes kann erreicht werden, dass die dem Werkstück zugewandte Vorderseite des Andrückbandes bei jedem Durchmesser innerhalb eines vorgegebenen Durchmesserbereiches großflächig an der Werkstückoberfläche bzw. an der Rückseite des Finishbandes anliegt, um die Andrückkraft auf das Schneidmittel zu übertragen. Das Andrückband kann an seiner Vorderseite auch weitere Elemente zur Übertragung der Andruckkräfte tragen.The pressing device comprises at least one flexurally elastic pressure band which is fixed to two bearings of a carrier element arranged at a fixed distance from one another. As a result of the bending elasticity of the pressure belt, it is possible for the front side of the pressure belt facing the workpiece to bear against the workpiece surface or the rear side of the finishing belt over a large area at each diameter within a predetermined diameter range in order to transmit the pressure force to the cutting means. The pressure belt can also carry other elements for transmitting the pressure forces on its front.
Das Material bzw. eine Materialkombination des Andrückbandes ist in Bandrichtung im Wesentlichen inelastisch, so dass sich die Bandlänge zwischen den Lagern auch unter Belastung nicht wesentlich ändert. Hierdurch ist es möglich, bei unterschiedlichen Durchmessern ggf. auch hohe Andrückkräfte zu übertragen.The material or a material combination of the pressure band is substantially inelastic in the band direction, so that the band length between the bearings does not change significantly even under load. This makes it possible, if necessary, to transmit high pressure forces at different diameters.
Das Andrückband kann beispielsweise mindestens ein Metallband aus einem federelastischen Metall umfassen, insbesondere aus Federstahl. Dabei ist es möglich, dass das Andrückband ausschließlich durch ein solches Metallband gebildet wird und keine weiteren Elemente aufweist. Es ist jedoch auch möglich, dass zusätzlich zu dem mindestens einen Metallband noch weitere Elemente vorgesehen sind, um beispielsweise der dem Werkstück zugewandten Vorderseite eine besondere Gestaltung und/oder besondere Elastizitätseigenschaften zu verleihen. Beispielsweise kann das Metallband an seiner Vorderseite eine Schicht aus gummielastischem Material aufweisen, um der Andrückseite eine begrenzte elastische Nachgiebigkeit zu verleihen.The pressure belt can comprise, for example, at least one metal band made of a resilient metal, in particular spring steel. It is possible that the pressure belt is formed exclusively by such a metal strip and has no further elements. However, it is also possible that, in addition to the at least one metal strip, further elements are provided in order, for example, to give the front side facing the workpiece a special design and / or special elasticity properties. For example, the metal strip may have on its front side a layer of rubber-elastic material in order to give the pressing side a limited elastic compliance.
Bei Alternativen besteht das Andrückband im Wesentlichen aus einem Gummimaterial, das durch in Bandrichtung verlaufende inelastische Fasern verstärktist. Es ist auch möglich, Kunststoffmaterial bei der Fertigung des Andrückbandes zu verwenden. Mehrere Materialien können in einem Verbundwerkstoff kombiniert sein, um die senkrecht zur Bandrichtung erwünschte Biegeelastizität bei gleichzeitig hoher Zugfestigkeit in Bandrichtung zu erreichen.In alternatives, the pressing belt consists essentially of a rubber material reinforced by inelastic fibers extending in the belt direction. It is also possible to use plastic material in the production of the pressure belt. Several materials can be combined in a composite material to achieve the desired perpendicular to the strip direction bending elasticity with high tensile strength in the tape direction.
Bei manchen nicht erfindungsgemäßen Ausführungsformen, die eine Bearbeitung ohne Finishband ermöglichen, ist an einer dem Werkstück zuzuwendenden Vorderseite des Andrückbandes Schneidmittel zur Bearbeitung der Werkstückoberfläche befestigt. Beispielsweise kann eine dem Werkstück zuzuwendenden Vorderseite eine Schneidmittelschicht mit in einer Bindung gebundenen Schneidkörnern tragen. Auf diese Weise erhält das Andrückband eine großflächig abrasive Vorderseite, die sich aufgrund der Biegelastizität des Andrückbandes an die Werkstückoberfläche großflächig anpassen kann. Es kann sich beispielsweise um eine Schneidmittelschicht handeln, bei der Diamantkörner oder keramische Körner in einer galvanisch aufgebrachten Bindung auf der Vorderseite eines metallischen Andrückbandes vorliegen.In some embodiments not according to the invention, which enable processing without a finishing belt, cutting means for machining the workpiece surface are fastened to a front side of the pressing belt facing the workpiece. For example, a face facing the workpiece may carry a cutting agent layer having cutting grains bonded in a bond. In this way, the pressing belt receives a large area abrasive front side, which can be adapted over a large area due to the bending elasticity of the pressure belt to the workpiece surface. It may, for example, be a cutting medium layer in which diamond grains or ceramic grains are present in a galvanically applied bond on the front side of a metallic pressing belt.
Bei einer weiteren nicht erfindungsgemäßen Finishvorrichtung ist es auch möglich, dass an der dem Werkstück zuzuwendenden Vorderseite eines Andrückbandes mehrere Schneidkörper mit gegenseitigem Abstand zueinander angeordnet sind. Bei den Schneidkörpern kann es sich beispielsweise um in Bandrichtung mit Abstand zueinander angeordnete Schneidleisten handeln, die durch Löten, Kleben oder auf andere Weise an der Vorderseite befestigt sind. Die leistenförmigen Schneidkörper können sich im Wesentlichen über die gesamte Breite des Andrückbandes erstrecken, ggf. auch nur über einen Teil davon. In der Regel sind drei oder mehr solcher zueinander beabstandeter Schneidkörper vorgesehen. Die dem Werkstück zugewandten Eingriffsflächen können durch Profilierung der Werkstückgeometrie angepasst sein. Bei manchen Varianten werden sehr viele leistenförmige Schneidkörper in Bandrichtung (Längsrichtung) mit Abstand nebeneinander angebracht, beispielsweise mehr als 3 oder mehr als 5 oder mehr als 10 oder mehr als 15 leistenförmige Schneidkörper, z.B. zwischen 5 und 10 solcher Schneidkörper. Bei Schneidkörpern mit geringer Breite kann ggf. auf eine Profilierung der dem Werkstück zugewandten Eingriffsfläche verzichtet werden, wodurch die Fertigung vereinfacht und kostengünstiger wird. Außerdem können dadurch größere Durchmesserbereiche abgedeckt werdenIn a further finishing device not according to the invention, it is also possible for a plurality of cutting bodies to be arranged at a mutual distance on the front side of a pressing belt facing the workpiece are arranged to each other. The cutting bodies may, for example, be cutting bars spaced apart from one another in the band direction and fastened by soldering, gluing or in some other way to the front side. The strip-shaped cutting body can extend substantially over the entire width of the pressure belt, possibly even only over a part thereof. As a rule, three or more such mutually spaced cutting body are provided. The engagement surfaces facing the workpiece can be adapted by profiling the workpiece geometry. In some variants, very many strip-shaped cutting bodies in the tape direction (longitudinal direction) are mounted at a distance next to each other, for example, more than 3 or more than 5 or more than 10 or more than 15 strip-shaped cutting body, eg between 5 and 10 such cutting body. When cutting bodies with a small width may possibly be dispensed with a profiling of the workpiece facing engagement surface, whereby the production is simplified and cheaper. In addition, larger diameter ranges can be covered thereby
Bei manchen nicht erfindungsgemäßen Finishvorrichtungen ist an der dem Werkstück zuzuwendenden Vorderseite des Andrückbandes ein zweidimensional ausgedehntes Feld von relativ kleinen Schneidmittelzonen angeordnet, deren mittlerer Durchmesser wesentlich kleiner ist als die Breite des Andrückbandes quer zur Bandrichtung. Die kleinen Schneidmittelzonen werden im Folgenden auch als "Pads" bezeichnet. Es kann sich dabei um Schneidmittelflecken handeln, die mit Hilfe einer durchlöcherten Maske in einem Beschichtungsprozess auf das metallische Andrückband aufgebracht werden. Die Pads können auch durch kleine Schneidmittelkörper gebildet werden, die durch Kleben, Löten oder auf andere Weise an der Vorderseite des Andrückbandes in der gewünschten Anordnung befestigt werden. Die Schneidmittelzonen können beispielsweise einen Rechteckquerschnitt mit ungleichen oder gleichen Kantenlängen haben, sie können aber auch rund oder oval sein. Vorzugsweise liegt der mittlere Durchmesser einer Schneidmittelzone bei 8mm oder darunter, zum Beispiel im Bereich zwischen ca. 1 mm und ca. 5mm. Der gegenseitige Abstand der Schneidmittelzonen kann in der gleichen Größenordnung liegen, ggf. aber auch darüber oder darunter. Die Schneidmittelzonen sollten sich jedoch nicht berühren. Dadurch kann ein zweidimensional ausgedehntes Feld von Schneidmittelzonen bereitgestellt werden, zwischen denen in mehrere Richtungen schneidmittelfreie Kanäle verlaufen. Der Flächenanteil der Kanäle kann in einer ähnlichen Größenordnung liegen wie der Flächenanteil der Schneidmittelzonen, so dass eine zuverlässige Späneabfuhr gewährleistet ist. Die Schneidmittelzonen können ungleichmäßig oder im Wesentlichen gleichmäßig innerhalb des Feldes verteilt sein. Eine ungleichmäßige Verteilung kann beispielsweise vorteilhaft sein, wenn bestimmte Formen der zu bearbeiteten Werkstücke erzeugt werden sollen. Häufig ist jedoch eine gleichmäßige Verteilung vorteilhaft, um einen entsprechend gleichmäßigen Materialabtrag sicherzustellen.In some finishing devices not according to the invention, a two-dimensionally extended field of relatively small cutting agent zones, whose average diameter is substantially smaller than the width of the pressing belt transversely to the belt direction, is arranged on the front side of the pressing belt facing the workpiece. The small cutting agent zones are also referred to below as "pads". These can be cutting agent spots which are applied to the metallic pressing belt with the aid of a perforated mask in a coating process. The pads may also be formed by small cutting medium bodies which are attached by gluing, soldering or otherwise to the front of the pressure band in the desired arrangement. The cutting agent zones may for example have a rectangular cross-section with unequal or equal edge lengths, but they may also be round or oval. Preferably, the average diameter of a cutting agent zone is 8 mm or less, for example in the range between about 1 mm and about 5 mm. The mutual distance of the cutting agent zones may be of the same order of magnitude, but possibly also above or below. However, the cutting agent zones should not touch. Thereby, a two-dimensionally extended field of cutting agent zones can be provided, between which cutting agent-free channels run in several directions. The area fraction of the channels can be of a similar order of magnitude as the area fraction of the cutting agent zones, so that reliable chip removal is ensured. The cutting agent zones may be unevenly or substantially evenly distributed within the field. An uneven distribution can be advantageous, for example, if certain shapes of the workpieces to be processed are to be produced. Frequently, however, a uniform distribution is advantageous to ensure a correspondingly uniform material removal.
Die Bereitstellung eines zweidimensional ausgedehnten Feldes von relativ kleinen Schneidmittelzonen kann unabhängig vom Vorhandensein eines biegeelastischen Andrückbandes auch bei Andrückeinrichtungen für die Finishbearbeitung sinnvoll sein, die eine im Wesentlichen starre Andrückgeometrie haben. Beispielsweise kann ein starres Andrückelement einen im Wesentlichen C-förmigen, weitgehend zylindrisch gekrümmten Andrückabschnitt haben, dessen konkave Innenseite mit einem Feld solcher Schneidmittelzonen belegt ist.The provision of a two-dimensionally extended field of relatively small cutting agent zones, irrespective of the presence of a flexurally elastic pressure band, may also be expedient for pressing devices for finish machining which have a substantially rigid pressure geometry. For example, a rigid pressing element have a substantially C-shaped, largely cylindrically curved pressing portion whose concave inner side is covered with a field of such cutting agent zones.
Bei nicht erfindungsgemäßen Andrückeinrichtungen, die für das Bandfinishen vorgesehen sind, kann die dem Werkstück zugewandte Vorderseite des Andrückbandes im Wesentlichen glatt sein und beispielsweise durch die durch Walzen entstandene Vorderseite eines Metallbandes gebildet werden.In non-inventive pressing devices, which are provided for the Bandfinishen, the workpiece facing the front of the Andrückbandes be substantially smooth and are formed for example by the resulting by rolling front of a metal strip.
Für die Bandfinish-Bearbeitung sind erfindungsgemäß an einer dem Finishband zuzuwendenden Vorderseite des Andrückbandes Verrutschsicherungsmittel vorgesehen, die ein Verrutschen des Finishbandes gegenüber dem Andrückband bei angedrückter Andrückeinrichtung erschweren. Hierdurch kann die bei der Bearbeitung erzielbare Oberflächengüte verbessert werden. Die Verrutschsicherungsmittel können durch eine geeignete Rauheit der Vorderseite gebildet sein. Bei manchen Ausführungsformen ist die Vorderseite des Andrückbandes mit feinkörnigem Schneidmaterial belegt, das beispielsweise an einem metallischen Andrückband mit Hilfe einer galvanischen Beschichtung angebracht sein kann. Bei Verwendung von beidseitig mit Schneidmittel beschichtetem Finishband sind gesonderte Verrutschsicherungsmittel in der Regel nicht notwendig.For strip finishing, anti-slip means are provided according to the invention on a front side of the pressing belt facing the finishing belt, which make it difficult for the finishing belt to slip against the pressing belt when the pressing device is pressed. As a result, the achievable during processing surface quality can be improved. The anti-slip means may be formed by a suitable roughness of the front side. In some embodiments, the front of the Andrückbandes is covered with fine-grained cutting material, which may be attached, for example, to a metallic Andrückband by means of a galvanic coating. When using finishing tape coated on both sides with a cutting agent, separate anti-slip devices are generally not necessary.
Bei manchen Ausführungsformen sind an einer dem Finishband zuzuwendenden Vorderseite des Andrückbandes mehrere in Bandrichtung versetzt angeordnete Andrückelemente aus elastisch nachgiebigem Material angebracht. Hierdurch können höhere Flächenpressungen und damit stärkere Materialabträge erreicht werden.In some embodiments, a plurality of offset in the tape direction pressing elements made of elastically yielding material are attached to a facing the finishing tape front of the Andrückbandes. As a result, higher surface pressures and thus greater material removal can be achieved.
Ein biegeelastisches Andrückband kann auf unterschiedliche Weise am zugeordneten Trägerelement befestigt sein. Gemäß der beanspruchten Erfindung haben die Lager am Trägerelement einen festen Abstand zueinander, so dass sich die Anpassungsfähigkeit der Andrückeinrichtung an unterschiedliche Durchmesser ausschließlich aus der Biegeelastizität des Andrückbandes ergibt. Das Andrückband istzwischen den beiden Festlagern selbsttragend eingespannt, so dass sich im lastfreien Zustand eine an der Vorderseite konkave Bogenform ergibt. Bei solchen Ausführungsformen wird in der Regel die Andrücklänge, mit der das Andrückband an der Rückseite des Finishbandes anliegt bzw. die Eingriffslänge am Werkstück, bei unterschiedlichen Durchmessern, variieren. Bei nicht zur beanspruchten Erfindung gehörigenden Varianten ist mindestens eines der Lager beweglich am Trägerelement angeordnet. Beispielsweise kann eines der Lager als Festlager ausgebildet sein, während das andere Lager ein Loslager ist. Die Befestigungsstelle des Andrückbandes kann beweglich, beispielsweise linear verschiebbar oder verschwenkbar, am Trägerelement befestigt sein. Hierdurch kann erreicht werden, dass im vorgesehenen Durchmesserbereich bei unterschiedlichen Durchmessern jeweils die gleiche Andrücklänge bzw. Eingriffslänge vorliegt, so dass sich bei unterschiedlichen Durchmessern und jeweils gleicher Andrückkraft im Wesentlichen die gleiche Flächenpressung an der Werkstückoberfläche ergibt.A flexurally elastic pressure band can be fastened in different ways to the associated carrier element. According to the claimed invention, the bearings on the carrier element have a fixed distance from one another, so that the adaptability of the pressing device to different diameters results exclusively from the bending elasticity of the pressing belt. The pressure belt is clamped self-supporting between the two fixed bearings, so that results in a load-free state concave on the front sheet. In such embodiments, the pressure length, with which the pressure belt at the back of the finishing belt is applied or the engagement length on the workpiece, at different diameters vary in the rule. In not belonging to the claimed invention variants, at least one of the bearings is movably arranged on the carrier element. For example, one of the bearings may be formed as a fixed bearing while the other bearing is a floating bearing. The attachment point of the pressure belt can be movably, for example linearly displaceable or pivotable, attached to the carrier element. In this way, it can be achieved that in each case the same pressure length or engagement length is present in the provided diameter range for different diameters, so that substantially the same surface pressure results at the workpiece surface at different diameters and in each case the same pressure force.
Bei einer für das Bandfinishen vorgesehenen Ausführungsform umfasst die Andrückeinrichtung zwei mit gegenseitigen Abstand zueinander angeordneten Umlenkeinrichtungen zur Umlenkung eines unter Spannung über die Umlenkeinrichtungen geführten Finishbandes, welches zwischen den Umlenkeinrichtungen einen mit einer Bandspannung geführten Finishbandabschnitt bildet, wobei die Umlenkeinrichtungen in einer Arbeitsstellung der Andrückeinrichtung an gegenüberliegenden Seiten des Werkstückabschnittes derart angeordnet sind, dass der Finishbandabschnitt unter Spannung über einen durch die Relativposition zwischen den Umlenkeinrichtungen und dem Werkstückabschnitt bestimmten Umschlingungswinkel flächig an der Umfangsfläche anliegt. Die Umlenkeinrichtungen können beispielsweise als drehbare Umlenkrollen beweglich ausgebildet sein. Es ist auch möglich, eine oder mehrere fixierte Umlenkeinrichtungen mit gekrümmten Umlenkkonturen vorzusehen. Die Umlenkelemente können beispielsweise durch Metallrollen mit zylindrischer Außenkontur gebildet sein. Es ist auch möglich, dass die Umlenkelemente an einem zur Führung des Finishabschnitts vorgesehenen Außenabschnitt aus einem elastisch nachgiebigen Material bestehen. Insbesondere in solchen Fällen kann ein Umlenkelement auch als Andrückelement dienen, um das Finishband unmittelbar an die Werkstückoberfläche anzudrücken.In an embodiment intended for strip finishing, the pressing device comprises two mutually spaced-apart deflection devices for deflecting a guided under tension on the deflection finishing belt, which forms a guided between the deflection a finishing belt section, the deflection in a working position of the pressing on opposite Sides of the workpiece portion are arranged such that the finish band portion rests under tension over a determined by the relative position between the deflecting means and the workpiece section wrap on the circumferential surface. The deflection can be designed to be movable, for example, as a rotatable pulleys. It is also possible to provide one or more fixed deflection devices with curved deflection contours. The deflecting elements may be formed, for example, by metal rollers with a cylindrical outer contour. It is also possible for the deflection elements to consist of an elastically yielding material on an outer section provided for guiding the finish section. In particular, in such cases, a deflection element can also serve as a pressure element to press the finishing tape directly to the workpiece surface.
Bei jeder dieser Varianten ist sichergestellt, dass der Finishbandabschnitt über einen durch die Relativposition zwischen den Umlenkeinrichtungen und dem Werkstückabschnitt bestimmten Umschlingungswinkel unterbrechungsfrei flächig an der Umfangsfläche anliegt, wodurch eine besonders schonende Bearbeitung möglich ist. Der Umschlingungswinkel kann dabei durch Veränderung der Relativposition zwischen den Umlenkeinrichtungen und dem Werkstückabschnitt eingestellt und stufenlos verändert werden.In each of these variants, it is ensured that the finishing belt section bears against the circumferential surface over an angle of contact determined by the relative position between the deflecting devices and the workpiece section without interruption, whereby particularly gentle machining is possible. The wrap angle can be adjusted and varied steplessly by changing the relative position between the deflecting devices and the workpiece section.
Bei nicht zur beanspruchten Erfindung gehörenden Beispielen wird die Andrückkraft ausschließlich über die Bandspannung des gespannten Finishbandabschnittes bestimmt. Mit Hilfe einer Finishband-Spanneinrichtung zur variablen Einstellung der Bandspannung des Finishbandes lassen sich stufenlos unterschiedliche Bandspannungen und damit unterschiedliche Anpressdrücke einstellen, die in Verbindung mit der Veränderbarkeit des Umschlingungswinkels einen großen Bereich unterschiedlicher Flächenpressungen erlauben.In not belonging to the claimed invention examples, the pressing force is determined solely on the belt tension of the tensioned finish belt section. With the aid of a finishing belt tensioning device for variably adjusting the belt tension of the finishing belt, it is possible to adjust continuously variable belt tensions and thus different contact pressures which, in conjunction with the variability of the wrap angle, allow a large range of different surface pressures.
Bei manchen nicht zur beanspruchten Erfindung gehörenden Beispielen ist vorgesehen, dass die Umlenkelemente derart in die Nähe des Werkstückabschnittes verlagert werden, dass das Finishband durch die Umlenkelemente unmittelbar an die Werkstückoberfläche angedrückt wird. Hierdurch sind im Bereich der Umlenkelemente höhere Anpresskräfte erzeugbar als allein durch die Bandspannung des Finishbandabschnittes. Es können sich linienhafte Kontaktbereiche ausbilden. Bei Umlenkelementen mit elastisch nachgiebiger Außenfläche können sich auch breitere Kontaktzonen ausbilden, so dass Andruckkraftspitzen vermieden werden.In some cases not belonging to the claimed invention, it is provided that the deflecting elements are displaced in the vicinity of the workpiece section in such a way that the finishing belt is pressed directly against the workpiece surface by the deflecting elements. As a result, higher contact forces can be generated in the region of the deflection elements than solely by the belt tension of the finishing belt section. It can form linear contact areas. For deflecting elements with an elastically yielding outer surface, wider contact zones can also be formed so that pressure force peaks are avoided.
Bei den nicht zur beanspruchten Erfindung gehörenden Beispielen mit frei gespannten Finishbandabschnitt werden die erzielbaren Anpressdrücke bzw: Flächenpressungen durch die Zugfestigkeit des Finishbandes begrenzt. Bei manchen Ausführungsformen umfasst die Andrückeinrichtung eine gesonderte, an der Rückseite des Finishbandabschnittes angreifende Andrückeinheit zum Andrücken des zwischen den Umlenkeinrichtungen gespannten Finishbandabschnittes an den Werkstückabschnitt. Hierdurch kann die an der Werkstückoberfläche wirksame Andrückkraft von der Bandspannung des Finishbandes entkoppelt werden und es können höhere Anpressdrücke bzw. Flächenpressungen erzielt werden.In the not belonging to the claimed invention examples with freely stretched finishing belt section achievable contact pressures or: surface pressures are limited by the tensile strength of the finishing belt. In some embodiments, the pressing device comprises a separate, acting on the back of the finishing tape section Andrückeinheit for pressing the tensioned between the deflecting finishing belt section to the workpiece section. As a result, the pressing force acting on the workpiece surface can be decoupled from the belt tension of the finishing belt and higher contact pressures or surface pressures can be achieved.
Bei einem nicht zur beanspruchten Erfindung gehörenden Beispiel umfasst die Andrückeinrichtung ein zwischen dem Finishband und den Umlenkeinrichtungen geführtes Stützband zur rückseitigen Abstützung des an dem Werkstückabschnitt anliegenden Finishbandes. Mit Hilfe einer Stützband-Spanneinrichtung kann die Bandspannung des Stützbandes variabel und vorzugsweise stufenlos eingestellt werden. Dabei kann das Stützband derart unter Spannung gesetzt werden, dass das Finishband mittels des Stützbandes mit einer durch die Bandspannung des Stützbandes bestimmten Andrückkraft an die Umfangsfläche angedrückt wird. Obwohl ein Teil der Andrückkraft auch aus einer Bandspannung des Finishbandes resultieren kann, ist das Finishband in solchen Fällen in der Regel spannungsfrei und liegt nur am Stützband an.In an example not belonging to the claimed invention, the pressing device comprises a support belt guided between the finishing belt and the deflecting devices for the rear support of the finishing belt resting on the workpiece section. With the aid of a support belt tensioning device, the belt tension of the support belt can be adjusted variably and preferably continuously. In this case, the support band can be placed under tension so that the finishing belt is pressed by means of the support belt with a determined by the belt tension of the support belt pressing force against the peripheral surface. Although a part of the pressing force can also result from a belt tension of the finishing belt, the finishing belt in such cases is usually stress-free and is only on the support band.
Das Stützband ist vorzugsweise aus einem Bandmaterial gefertigt, das eine höhere Zugfestigkeit besitzt als das Material des Finishbandes, so dass höhere Andruckkräfte erzeugbar sind als alleine über die Bandspannung des Finishbandes möglich wären. Es ergeben sich dadurch zusätzliche Freiheiten für die Materialwahl des Finishbandes.The support band is preferably made of a band material which has a higher tensile strength than the material of the finishing band, so that higher pressure forces can be generated than would be possible alone over the band tension of the finishing band. This results in additional freedom for the choice of material of the finishing tape.
Die Andrückkraft kann mit Hilfe des Stützbandes oder einer anderen gesonderten Andrückeinheit weggesteuert oder kraftgesteuert erzeugt und damit gezielt vorgegeben werden.The pressing force can be controlled away by means of the support belt or another separate pressure unit or force-controlled generated and thus specified.
Bei manchen Verfahrensvarianten der Band-Finishbearbeitung ruht das Finishband während der Bearbeitung, so dass die Schnittgeschwindigkeit ausschließlich durch die Drehbewegung des Werkstückes und die überlagerte axial oszillierende Relativbewegung zwischen Werkstück und Werkzeug (Finishband) erzeugt wird. In regelmäßigen oder unregelmäßigen Zeitintervallen kann ein gebrauchter Finishbandabschnitt durch einen frischen Finishbandabschnitt ersetzt werden, indem in einer Bearbeitungspause mit entlastetem Finishband das Finishband um eine vorbestimmte Bandvorschubstrecke vorgeschoben wird.In some method variants of the strip finish machining the finishing belt rests during processing, so that the cutting speed exclusively by the rotational movement of the workpiece and the superimposed axial oscillating relative movement between workpiece and tool (finishing belt) is generated. At regular or irregular time intervals, a used finishing belt section can be replaced with a fresh finishing belt section by advancing the finishing belt by a predetermined belt advance distance during a processing break with unloaded finishing belt.
Bei einer nicht erfindungsgemäßen Weiterbildung einer Finishvorrichtung umfasst die Andrückeinrichtung ein Trägerelement, an dem mindestens zwei mit gegenseitigem Abstand zueinander angeordnete Andrückelemente mit dem Werkstück zuzuwendenden Andrückflächen derart schwenkbar gelagert sind, dass sich die Andrückelemente bei Anliegen der Andruckflächen an einer Rückseite eines am Werkstückabschnitt anliegenden Finishbandes derart beispielsweise im Wesentlichen radial, zum Werkstückabschnitt ausrichten, dass die Andrückflächen im Wesentlichen flächig an der Rückseite des Finishbandes anliegen. Beispielsweise können drei oder mehr unabhängig voneinander schwenkbar gelagerte Andrückelemente vorgesehen sein, die vorzugsweise symmetrisch und/oder in gleichen Umfangsabständen zueinander angeordnet sind. Durch die Verschwenkbarkeit der Andrückelemente wird die Anpassungsfähigkeit der Andrückeinrichtung an unterschiedliche Durchmesser gewährleistet. Die unmittelbare Lagerung am Trägerelement erlaubt es, relativ große Anpressdrücke zu erzeugen. Die Andrückelemente können zumindest im Bereich der Andrückflachen mit einem elastisch etwas nachgiebigen Material ausgestaltet sein, um im begrenzten Maße eine Anpassung der Andrückflächen an unterschiedliche Krümmungen der Werkstückoberfläche zu ermöglichen.In a refinement of a finishing device which is not according to the invention, the pressing device comprises a carrier element on which at least two pressing elements facing each other with the workpiece are pivotably mounted with the workpiece so that the pressing elements are in contact with the pressing surfaces on a rear side of a finishing belt resting against the workpiece section For example, substantially radially, align the workpiece section that the pressure surfaces lie substantially flat against the back of the finishing belt. For example, it is possible to provide three or more pressing elements which are mounted so as to be pivotable independently of one another and which are preferably arranged symmetrically and / or at equal circumferential distances from one another. Due to the pivotability of the pressing elements, the adaptability of the pressing device is ensured to different diameters. The direct storage on the support element makes it possible to produce relatively large contact pressures. The pressing elements can be configured, at least in the area of the pressure surfaces, with an elastically somewhat yielding material in order to allow, to a limited extent, adaptation of the pressure surfaces to different curvatures of the workpiece surface.
Der Schutzumfang der Erfindung ergibt sich aus den Patentansprüchen.The scope of the invention results from the patent claims.
-
Fig. 1 : zeigt eine schematische Teilansicht einer Finisheinheit mit zwei zangenar- tig gegeneinander verschwenkbaren Bearbeitungsarmen, die Andrück- einrichtungen tragen, welche Finishband an einen zylindrischen Werk- stückabschnitt einer Kurbelwelle andrücken;Fig. 1 1 shows a schematic partial view of a finishing unit with two processing arms which can be pivoted against one another like a pair of pliers and which carry pressure devices which press the finishing belt against a cylindrical workpiece section of a crankshaft; -
Fig. 2A : zeigt eine Ausführungsform einer Andrückeinrichtung mit biegeelasti- schem Andrückband bei Bearbeitung eines Werkstückabschnittes mit großem Durchmesser;Fig. 2A FIG. 1 shows an embodiment of a pressing device with flexurally elastic pressure band during machining of a workpiece section with a large diameter; FIG. -
Fig. 2B : zeigt die inFig. 2A gezeigte Ausführungsform bei der Bearbeitung ei- nes Werkstückabschnittes mit kleinerem Durchmesser;Fig. 2B : shows the inFig. 2A embodiment shown in the processing of a workpiece section with a smaller diameter; -
Fig. 3 : zeigt eine Ausführungsform einer Andrückeinrichtung, die ein biege- elastisches Andrückband mit werkstückseitigen Andrückelementen um- fasst;Fig. 3 FIG. 1 shows an embodiment of a pressing device which encompasses a bending-elastic pressure band with workpiece-side pressure elements; FIG. -
Fig. 4 : zeigt eine Ausführungsform einer Andrückeinrichtung mit einem biege- elastischen Andrückband, das an einer Seite fest und an der gegenü- berliegenden Seite beweglich gelagert ist;Fig. 4 1 shows an embodiment of a pressing device with a bending-elastic pressure band which is fixedly mounted on one side and movably on the opposite side; -
Fig. 5A : zeigt ein nicht zur beanspruchten Erfindung gehörendes Beispiel einer Andrückeinrichtung mit einem zwi- schen Umlenkrollen frei gespannten Finishbandabschnitt in einer ers ten Arbeitsstellung;Fig. 5A shows an example of a pressing device which does not belong to the claimed invention, with a finishing belt section freely tensioned between deflection rollers in a first working position; -
Fig. 5B : zeigt die inFig. 5A gezeigt Andrückeinrichtung in einer zweiten Ar- beitsstellung mit größerem Umschlingungswinkel;Fig. 5B : shows the inFig. 5A shown pressing device in a second work with a larger wrap angle; -
Fig. 6 : zeigt ein nicht zur beanspruchten Erfindung gehörendes Beispiel einer Andrückeinrichtung mit Umlenkrollen, die zum unmittelbaren Andrücken des Finishbandes an die Werkstück- oberfläche genutzt werden;Fig. 6 shows a non-claimed invention belonging to example of a pressing device with pulleys, which are used for immediate pressing of the finishing belt to the workpiece surface; -
Fig. 7 : zeigt ein nicht zur beanspruchten Erfindung gehörendes Beispiel einer Andrückeinrichtung mit einem endlo- sen Stützband;Fig. 7 shows an example not belonging to the claimed invention of a pressing device with an endless support band; -
Fig. 8 : zeigt eine Ausführungsform einer Andrückeinrichtung mit mehreren verschwenkbaren Andrückelementen, die nicht Ausführungs form der Erfindung ist;Fig. 8 shows an embodiment of a pressing device with a plurality of pivotable pressing elements, which is not execution form of the invention; -
Fig. 9 : zeigt eine Ausführungsform einer Andrückeinrichtung mit Andrückband für Finishband.Fig. 9 shows an embodiment of a pressing device with pressure belt for finishing belt. -
Fig. 10 : zeigt eine Ausführungsform einer Andrückeinrichtung mit einem Feder- stahl-Andrückband, das an seiner Vorderseite drei relativ breite Finish- steine trägt, die nicht Ausführungsform der Erfindung istFig. 10 1 shows an embodiment of a pressing device with a spring steel pressure band, which carries on its front side three relatively wide finishing stones, which is not an embodiment of the invention -
Fig. 11 : zeigt eine Ausführungsform einer Andrückeinrichtung mit einem An- drückband, das an seiner Vorderseite viele schmale Finishsteine trägt, und nicht Ausführungsform der Erfindung ist, undFig. 11 FIG. 1 shows an embodiment of a pressing device with a pressure band, which carries many narrow finishing stones on its front side, and is not an embodiment of the invention, and -
Fig. 12 : zeigt schematisch die Vorderseite eines biegeelastischen Andrückban- des mit einem zweidimensional ausgedehnten Feld kleiner Schneidmit- telzonen, das nicht Ausführungsform der Erfindung ist.Fig. 12 1 shows schematically the front side of a flexurally elastic pressure belt with a two-dimensionally extended field of small cutting medium zones, which is not an embodiment of the invention.
In
Die Bandfinishvorrichtung hat mehrere nebeneinander angeordnete Finisheinheiten, die an einem gemeinsamen Maschinengestell angeordnet sind. Die Einheiten sind jeweils sehr schmal, um gleichzeitig nebeneinander liegende Werkstückabschnitte zu bearbeiten. Die gezeigte Vorrichtung hat mehrere Finisheinheiten zur Bearbeitung von Hauptlagern und dazwischenliegende Finisheinheiten zur Bearbeitung von Pleuellagern der Kurbelwelle 10.The belt finishing device has a plurality of juxtaposed finishing units arranged on a common machine frame. The units are each very narrow to work simultaneously adjacent workpiece sections. The device shown has several finishing units for processing main bearings and intermediate finishing units for processing connecting rod bearings of the
Die in
Eine nicht im Detail gezeigte Finishband-Fördereinrichtung stellt ein Finishband 20 bereit, das von einer nicht gezeigten Vorratsrolle in Richtung der Eintrittsseite der Finisheinheit abgezogen und nach Benutzung von der Austrittsseite der Finisheinheit in Austrittsrichtung 22 zu einer Aufwickelrolle für verbrauchtes Finishband geführt wird. Das Finishband 20 umfasst einen weitgehend inkompressiblen, dehnungsarmen Polyesterfilm, der an seiner dem Werkstück zuzuwendenden Vorderseite 21 mit körnigem Schneidmittel besetzt ist. Es sind jedoch auch andere Typen von Finishbändern verwendbar, beispielsweise Finishbänder mit Schneidmittel auf Gewebeunterlage oder Finishbänder mit Schneidmittel auf Papierunterlage. Alle üblichen Schneidmittel können verwendet werden, beispielsweise keramische Schneidkörner aus Aluminiumoxid oder Siliziumkarbid, Diamantschneidkörner oder Schneidkörner aus kubischem Bornitrid odgl..A finishing belt conveyor, not shown in detail, provides a finishing
An jedem der Bearbeitungsarme 15A, 15B ist im Bereich des freien Endes auf der dem Werkstück zuzuwendenden Seite eine auswechselbare Andrückeinrichtung 50A, 50B befestigt, die jeweils dafür ausgelegt ist, das mit Schneidmittel besetzte Finishband 20 an die Umfangsfläche 12 des Werkstücks so anzudrücken, dass das Finishband an die Umfangsfläche über einen Umschlingungswinkel W mit einer für den Bearbeitungsvorgang vorgesehenen Andrückkraft angedrückt wird. Die beiden in
Aufbau und Funktionsweise der Andrückeinrichtungen 50A und 50B werden im folgenden Zusammenhang mit den
Aus Gründen der Übersichtlichkeit werden für entsprechende Elemente die gleichen Bezugszeichen verwendet.For reasons of clarity, the same reference numerals are used for corresponding elements.
Eine Andrückeinrichtung 50 hat ein starres, im Wesentlichen C-förmiges Trägerelement 60 aus Werkzeugstahl, das mit seiner der C-Öffnung abgewandten Rückseite an den jeweiligen Bearbeitungsarm 15A bzw. 15B fest, aber auswechselbar angeschraubt ist. Das einstückige Trägerelement gliedert sich in einen massiven Trägerabschnitt 61, mit dem das Andrückelement am jeweiligen Bearbeitungsarm befestigt ist, und zwei mit Abstand zueinander angeordnete Schenkelabschnitte 62, 63, die im Einbauzustand dem Werkstück zugewandt sind. Zwischen den freien Enden der Schenkelabschnitte 62, 63 ist ein biegeelastisches Andrückband 70 befestigt, dessen beide Enden jeweils an den freien Ende der zugeordneten Schenkelabschnitte 62, 63 durch Schrauben oder auf andere Weise an den Lagern 72, 73 fixiert sind. Die freie Länge des Andrückbandes zwischen den Lagern 72, 73 ist größer als der lichte Abstand der Lager, so dass sich bereits am unbelasteten Andrückband eine in das Innere des Trägerelementes gerichtete Krümmung derart ausbildet, dass das unbelastete Andrückband eine dem Werkstück zuzuwendende, weitgehend zylindrisch gekrümmte konkave Andrückfläche bietet.A
Das Andrückband 70 ist im Beispielsfall ein Band aus Federstahl mit einer typischen Dicke im Bereich von 0.1 bis 3 mm und einer quer zur Bandrichtung gemessene Breite, die im Wesentlichen der Breite des Finishbandes 20 entspricht, gegebenenfalls jedoch auch etwas geringer als die Finishbandbreite sein kann. Die dem Finishband zuzuwendende Vorderseite 71 des Andrückbandes 70 trägt eine Verrutschsicherung in Form einer Schicht aus galvanisch gebundenen Diamantkörnern sehrf einer Körnung (beispielsweise D10 oder D20), die dafür sorgt, dass das anzudrückende Finishband im angedrückten Zustand nicht gegenüber dem Andrükkelement verrutschen kann. Bei anderen Ausführungsformen besteht das Andrückband im Wesentlichen aus einem Elastomermaterial besteht, das vorzugsweise durch in Bandrichtung verlaufende inelastische Fasern verstärkt ist.The
Für die Führung des Finishbandes in den Raum zwischen dem Andrückband und der Werkstückoberfläche hat die Andrückeinrichtung zwei mit gegenseitigem Abstand zueinander angeordnete Umlenkeinrichtungen 91, 92 in Form von zylindrischen Umlenkrollen, die bei der Variante von
Vor der Bearbeitung des Werkstückabschnittes ist das Finishband bei noch abgehobenen Andrückelementen zwischen Werkstückabschnitt und Andrückelement hindurchgeführt und liegt normaler weise nur an den Umlenkrollen 91, 92 unter Spannung an. Beim Einwärtsschwenken der Bearbeitungsarme legt sich dann das gespannte Finishband um den jeweilig zugewandten Bereich des Werkstückabschnittes, bis das entsprechende Andrückband der Andrückeinrichtung auf die nach außen gewandte Rückseite des Finishbandes aufgedrückt wird. Unter Einwirkung der von den Bearbeitungsarmen bereitgestellten Kraft F passt sich das Andrückband dann unter Änderung seiner Krümmung flexibel dem zu bearbeitenden Durchmesser an und drückt das zwischen Andrückband und Werkstückoberfläche eingeklemmte Finishband großflächig in einem einzigen, zusammenhängenden Andrückbereich an den Werkstückabschnitt an.Before the processing of the workpiece section, the finishing belt is passed while still lifted pressing elements between the workpiece section and pressure element and is normally only at the
Der Vergleich der
Mit Hilfe derartiger Andrückeinrichtungen, die sich in einem weiten Durchmesserbereich an unterschiedliche Werkstückabschnittsdurchmesser anpassen können, kann eine Finishmaschine aufgebaut werden, bei der alle Finisheinheiten mit identischen Andrückeinheiten ausgestattet sind. Ein Satz von Finisheinheiten kann dabei an relativ großen Hublagerabschnitten angreifen, während dazwischenliegende Finisheinheiten mit identischen Andrückeinrichtungen an im Vergleich dazu im Durchmesser kleineren Hublagerabschnitten angreifen können.With the help of such pressing devices that can adapt to different workpiece section diameter in a wide diameter range, a finishing machine can be constructed in which all finishing units are equipped with identical pressure units. One set of finishing units can act on relatively large stroke bearing sections, while intermediate finishing units with identical pressing devices can engage in comparison to smaller in diameter Hublagerabschnitten.
Selbstverständlich ist es auch möglich, dass mit der derselben Andrückeinrichtung zunächst ein erster Werkstückabschnitt mit einem ersten Durchmesser und danach (ohne zwischengeschalteten Werkzeugwechsel), am gleichen Werkstück oder an einem anderen Werkstück ein zweiter Werkstückabschnitt mit einem vom ersten Durchmesser verschiedenen zweiten Durchmesser bearbeitet wird, wobei sich die Andrückeinrichtung an die jeweils unterschiedlichen Durchmesser stufenlos anpasst. Der Durchmesserunterschied darf bei vielen Ausführungsformen im Bereich von einem oder mehreren Millimetern und/oder im Bereich von 1 % oder mehr liegen, beispielsweise im Bereich zwischen ca. 50mm und ca. 60mm, aber auch darüber oder darunter.Of course, it is also possible that with the same pressing first a first workpiece portion with a first diameter and then (without intermediate tool change), on the same workpiece or on another workpiece, a second workpiece section is processed with a different diameter from the first diameter, wherein the pressure device continuously adapts to the respective different diameters. The difference in diameter may in many embodiments be in the range of one or more millimeters and / or in the range of 1% or more, for example in the range between about 50mm and about 60mm, but also above or below.
Bei passiven, adaptiven Andrückeinrichtungen bestimmt der Durchmesser des zu bearbeitenden Werkstückabschnittes die Geometrie des Andrückelementes, wenn dieses in die Andrückstellung gebracht wird. Dabei passt sich das Andrückelement an die Geometrie des Werkstückabschnittes an. Solche Andrückeinrichtungen sind daher in erster Linie zur Verbesserung der Oberflächenbeschaffenheit eines Werkstückabschnittes in Fällen vorgesehen, bei denen eine Formkorrektur nicht erforderlich und auch nicht gewünscht ist. Eine Formkorrektur, insbesondere für kurzwellige Fehler, ist jedoch in manchen Fällen möglich, da sich das Stützband nicht in alle Richtungen gleichmäßig verformen lässt.In the case of passive, adaptive pressing devices, the diameter of the workpiece section to be machined determines the geometry of the pressing element when it is brought into the pressing position. In this case, the pressure element adapts to the geometry of the workpiece section. Such pressing devices are therefore provided primarily for improving the surface finish of a workpiece section in cases where a shape correction is not required and also not desired. However, a shape correction, especially for short-wave defects, is possible in some cases because the support band can not be uniformly deformed in all directions.
Bei der Ausführungsform einer Andrückeinrichtung 350 in
Der Grundaufbau der Andrückeinrichtung 350 mit Trägerelement 360 und Andrückband 370 sowie Umlenkrollen 392, 393 und Festlagern 372, 373 ist im Wesentlichen der gleiche wie bei den Ausführungsformen gemäß
In einer nicht bildlich dargestellten Variante ist ein metallisches Andrückband an seiner dem Finishband zuzuwendenden Vorderseite mit einer Schicht aus einem Elastomermaterial versehen, so dass ein großflächiger und ununterbrochener Anlagekontakt mit der Finishband-Rückseite möglich ist.In a variant, not illustrated, a metallic pressing belt is provided on its front side facing the finishing belt with a layer of an elastomeric material so that a large-area and uninterrupted contact with the finishing belt rear side is possible.
In
Bei dieser Variante wurde auf Umlenkrollen zur Führung des Finishbandes in den Bereich zwischen Andrückband 470 und Werkstück verzichtet. Stattdessen sind an den freien Enden des Andrückbandes Umlenkeinrichtungen 492, 493 in Form von kontinuierlich gekrümmten Führungsflächen vorgesehen, auf denen das Finishband anliegt und auf denen es beim Bandtransport in Bearbeitungspausen abgleiten kann. Eine solche Finishbandführung kann auch bei den oben erläuterten Ausführungsformen anstelle der Umlenkrollen vorgesehen sein. Umgekehrt können bei der Ausführungsform in
Die bisher beschriebenen Ausführungsformen sind Beispiele für "passive" Andrückeinrichtungen, die so konstruiert sind, dass sie sich selbsttätig an den zu bearbeitenden Werkstückdurchmesser anpassen. Anhand einer zur beanspruchten Erfindung gehörenden Variante der Ausführungsform von
Anhand der
Wie bei den Ausführungsformen gemäß
Zur Erhöhung der spezifischen Flächenpressung und der daraus resultierenden Material-Abtrennrate können die Umlenkeinrichtungen auch so weit an die Werkstückoberfläche herangeführt werden, dass sie das Finishband unmittelbar an die Werkstückoberfläche andrücken. Dies ist in
Die Flächenpressung im Bereich des Umschlingungswinkels wird bei den Varianten mit frei gespanntem Finishbandabschnitt (siehe
Bei einer Verfahrensvariante werden das Finishband und das Stützband gleichzeitig während des Bearbeitungseingriffes langsam weiterbewegt, so dass während einer Bearbeitungsphase kontinuierlich oder in Stufen frisches, unverbrauchtes Finishband nachgeführt wird. Hierdurch sind besonders gleichmäßige Bearbeitungsergebnisse erzielbar. Außerdem kann ein Teil der Späneabfuhr über das Finishband erfolgen, welches abgetragene Späne beim Weitertransport mitnehmen kann. Zur Erzeugung der Vorschubbewegung des Finishbandes und des daran anliegenden Stützbandes kann die Drehbewegung des Werkstückabschnitts 13 genutzt werden, indem eine der Rollen 795, 796 mit einer kontrolliert ansteuerbaren Bremseinrichtung versehen ist, die der Mitnahmekraft des rotierenden Werkstückabschnittes entgegen wirkt und somit eine Fortbewegung von Finishband/Stützband mit kontrollierter Geschwindigkeit und ggf. mit Pausen ermöglicht. Es ist auch ein aktiver Antrieb der koordinierten Vorschubbewegung von Finishband und Stützband während der Bearbeitung möglich. Hierzu kann mindestens eine der Rollen 795, 796 mit einem entsprechenden Antrieb, beispielsweise einem Elektromotor verbunden sein, der über die Steuerung der Bearbeitungsmaschine nach einem vorgebbaren Programm angesteuert werden kann. Diese kontrollierte Fortbewegung von Finishband und Stützband während einer Bearbeitungsphase kann unabhängig von der beschriebenen Durchmesseranpassung nützlich sein und auch bei Andrückeinrichtungen vorgesehen sein, die nicht für eine stufenlose Anpassung an unterschiedliche Durchmesser eines größeren Durchmesserbereiches ausgelegt sind.In a variant of the method, the finishing belt and the support belt are moved on simultaneously during the machining operation, so that during a processing phase, continuously or in stages, fresh, unused finishing belt is tracked. As a result, particularly uniform machining results can be achieved. In addition, a part of the chip removal can be done on the finishing belt, which can take away removed chips on further transport. To generate the feed movement of the finishing belt and the supporting belt resting thereon, the rotational movement of the
Bei der nicht zur beanspruchten Erfindung gehörenden Andrückeinrichtung 850 in
Durch die pendelnde Lagerung der Andrückelemente wird erreicht, dass sich die Andrückelemente bei Anlegen der Andrückflächen an die Rückseite des über dem Werkstückabschnitt gespannten Finishbandes gegenüber diesem Werkstückabschnitt im Wesentlichen radial so ausrichten, dass die Andrückflächen im Wesentlichen flächig an der Rückseite des Finishbandes anliegen. Je größer hierbei der Durchmesser des Werkstückabschnittes ist, desto geringer wird der relative Schrägwinkel zwischen den Andrückelementen. Durch die Verschwenkbarkeit der Andrückelemente ist eine Anpassung an stark unterschiedliche Werkstückabschnittsdurchmesser möglich, wobei gleichzeitig durch die Elastizität im Bereich der Andrückflächen erreicht wird, dass auch bei unterschiedlichen Krümmungen der Werkstückoberfläche jeweils ein vollflächiger Kontakt zwischen Andrückelement und Finishband vorliegt. Für die Übertragung der Andruckkräfte ist diese Anordnung relativ starr, so dass mit dieser Variante im Bereich der Andrückelemente relativ große Flächenpressungen und damit eine hohe Materialabtragsrate erzielt werden kann. Selbstverständlich können auch mehr als drei Andrückelemente vorgesehen sein, beispielsweise 5, 7 und 9 Andrückelemente oder mehr. Die Anordnungsdichte der Andrükkelemente muss dabei lediglich berücksichtigen, dass in dem für die Andrückeinrichtung vorgesehenen Durchmesserbereich ausreichend Spielraum für die gegenseitige Verschwenkung der Andrückelemente bleibt. Im Bereich der Andrückflächen können die pendelnd aufgenommenen Andrückelemente auf einen mittleren Durchmesser des angedachten Durchmesserbereichs vorgeschliffen sein, so dass ausgehend von dieser mittleren Krümmung nur geringfügige Flächenformanpassungen beim Andrücken erforderlich sind.Due to the oscillating mounting of the pressing elements, it is achieved that, when the pressing surfaces are applied to the rear side of the finishing belt, which is stretched over the workpiece section, the pressing elements are aligned substantially radially relative to this workpiece section so that the pressing surfaces lie substantially flat against the rear side of the finishing belt. The larger the diameter of the workpiece section, the lower the relative skew angle between the pressing elements. Due to the pivotability of the pressing elements, adaptation to greatly differing workpiece section diameters is possible, wherein at the same time the elasticity in the area of the pressure surfaces achieves that even with different curvatures of the workpiece surface in each case a full-surface contact between pressure element and finishing belt is present. For the transmission of the pressure forces, this arrangement is relatively rigid, so that relatively large surface pressures and thus a high material removal rate can be achieved with this variant in the region of the pressure elements. Of course, more than three pressing elements may be provided, for example, 5, 7 and 9 pressing elements or more. The arrangement density of the pressure elements only has to take into account that sufficient clearance for the mutual pivoting of the pressure elements remains in the diameter range provided for the pressure device. In the area of the pressing surfaces, the oscillatingly received pressing elements can be pre-ground to a mean diameter of the intended diameter range, so that only minor surface shape adjustments are required when pressing against this middle curvature.
Die in den
Bei der in
Claims (11)
- Pressing device for pressing cutting means onto circumferential surfaces (12) of substantially cylindrical workpiece portions (13) during a finishing operation in such a way that the cutting means is pressed onto a circumferential surface with a pressing force over a contact angle, the pressing device (50, 350, 450, 950) being provided for pressing finishing belt (20) onto the circumferential surface,
wherein the pressing device comprises at least one elastically flexible pressing band (70, 370, 470, 970), which is substantially inelastic in the band direction and is fastened to two bearings (72, 73, 372, 373, 472, 473, 961) of a carrier element (60, 360, 460, 960) that are arranged at a defined distance from one another, wherein the pressing band is inelastic in the band direction such that the band length between the bearings does not alter substantially even under load, and the pressing device is steplessly adaptable for the machining of workpiece portions of differing diameters that have a diameter difference of at least 0.1 mm, wherein the pressing band is constrained in a self-supporting manner between the bearings (72, 73, 372, 373, 472, 473, 961) realized as a fixed bearing such that a concave arc shape is obtained on the front side when in the load-free state, the pressing band comprises at least one metal band (70, 370, 470, 970) composed of a spring-elastic metal, or is composed, substantially, of an elastomer material that is reinforced by inelastic fibers extending in the band direction, and anti-slip means, which impede slippage of the finishing belt relative to the pressing band when the pressing device is pressed on, are provided on a front side of the pressing band. - Pressing device according to Claim 1, wherein the pressing band (70, 370, 470, 970) is composed exclusively of a metal band, in particular made of spring steel.
- Pressing device according to any one of the preceding claims, wherein the front side of the pressing band is provided with fine-grain cutting material.
- Pressing device according to any one of the preceding claims, wherein a layer of rubber-elastic material is applied on a front side of the pressing band for the purpose of producing a limited elastic resilience of a pressing surface, or wherein a plurality of pressing elements (375A, 375B, 375C), which are composed of elastically resilient material and arranged in an offset manner in the band direction, are applied on a front side of the pressing band (370).
- Pressing device according to any one of the preceding claims, wherein the diameter difference is at least 1 % and/or wherein the pressing device (50, 350, 450, 950) is designed in such a way that each diameter can be machined in a diameter range having a diameter difference of at least 0.1 mm between a minimum and a maximum diameter in the case of a mean diameter between 20 mm and 70 mm.
- Pressing device according to any one of the preceding claims, wherein the pressing device (50, 350, 950) is so designed that the stepless adaptation is effected in a self-acting manner, as a result of the design of the pressing device, upon the pressing device being pressed onto the workpiece portion, or wherein the pressing device is designed as an adjustable pressing device (450), and a pressing geometry of the pressing device can be steplessly adapted to the diameter of the workpiece portion by means of an adjusting device (410).
- Pressing device according to any one of the preceding claims, wherein the pressing device comprises two deflection devices (92, 93; 392, 393; 492, 493), arranged with a mutual spacing in relation to one another, for deflecting a finishing belt (20) guided under tension via the deflection devices, which finishing belt constitutes a finishing belt portion guided with a belt tension between the deflection devices,
the deflection devices being arranged on opposing sides of the workpiece portion (13), the pressing device being in a working position, in such a way that the finishing belt portion, under tension, over a wrap contact angle determined by the relative position between the deflection devices and the workpiece portion, bears flatly on the circumferential surface, preferably at least one of the deflection elements being realized as a deflection roller (92, 93; 392, 393). - Pressing device according to Claim 7, wherein the wrap contact angle can be set through alteration of the relative position between the deflection devices and the workpiece portion.
- Apparatus for finishing circumferential surfaces of substantially cylindrical workpiece portions on workpieces, having:a rotary device for generating a rotary motion of the workpiece about a workpiece axis;an oscillation device for generating an oscillating relative motion, aligned parallelwise in relation to the workpiece axis (11), between the workpiece and at least one pressing device (50A, 50B) for pressing cutting means onto the circumferential surface (12) in such a way that the cutting means is pressed onto the circumferential surface with a pressing force over a contact angle;characterized in that the pressing device is designed according to any one of the preceding claims.
- Method for finishing circumferential surfaces of substantially cylindrical workpiece portions on workpieces, wherein a cutting means provided on a finishing belt is pressed onto the circumferential surface, by means of a pressing device, with a pressing force over a contact angle and, for the purpose of generating removal of material, the workpiece is rotated about a workpiece axis, and there is generated, oscillating parallelwise in relation to the workpiece axis, a relative motion between the workpiece and the cutting means, characterized in that
at least one pressing device according to any one of Claims 1 to 8 is used and in that the same pressing device is used to machine firstly a first workpiece portion, of a first diameter, and subsequently to machine a second workpiece portion, of a second diameter that differs from the first diameter, a diameter difference between the first diameter and the second diameter being at least 0.1 mm, and a stepless adaptation of the pressing device to the diameters being effected. - Method according to Claim 10, wherein the finishing belt rests in the belt running direction during the machining of a workpiece portion, such that the cutting speed necessary for the removal of material is generated exclusively by the rotary motion of the workpiece and the relative oscillating motion between the workpiece and the finishing belt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007051047.2A DE102007051047B4 (en) | 2007-10-16 | 2007-10-16 | Press-on device for finishing belt and device and method for finishing peripheral surfaces on cylindrical workpiece sections |
PCT/EP2008/008714 WO2009049868A1 (en) | 2007-10-16 | 2008-10-15 | Pressing device for cutting means and apparatus and method for finishing circumferential surfaces on cylindrical parts of a workpiece |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2212058A1 EP2212058A1 (en) | 2010-08-04 |
EP2212058B1 EP2212058B1 (en) | 2011-07-13 |
EP2212058B2 true EP2212058B2 (en) | 2018-03-28 |
Family
ID=40329082
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08840276.3A Not-in-force EP2212058B2 (en) | 2007-10-16 | 2008-10-15 | Pressing device for cutting means and apparatus and method for finishing circumferential surfaces on cylindrical parts of a workpiece |
Country Status (7)
Country | Link |
---|---|
US (1) | US8517804B2 (en) |
EP (1) | EP2212058B2 (en) |
CN (2) | CN106425773A (en) |
AT (1) | ATE516111T1 (en) |
DE (3) | DE102007051047B4 (en) |
ES (1) | ES2370991T5 (en) |
WO (1) | WO2009049868A1 (en) |
Families Citing this family (49)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2327510B1 (en) * | 2009-11-25 | 2011-07-06 | Supfina Grieshaber GmbH & Co. KG | Finishing device |
DE102010011470B9 (en) * | 2010-03-09 | 2016-09-29 | Nagel Maschinen- Und Werkzeugfabrik Gmbh | Method and device for measuring-assisted fine machining of workpiece surfaces and measuring system |
EP2452779B1 (en) * | 2010-11-16 | 2013-04-24 | Supfina Grieshaber GmbH & Co. KG | Device for determining the feed rate of a finishing belt |
DE102010052311A1 (en) * | 2010-11-17 | 2012-05-24 | Nagel Maschinen- Und Werkzeugfabrik Gmbh | Method and device for finishing curved workpiece surfaces on workpieces by means of finishing tape |
DE102011081918A1 (en) * | 2011-08-31 | 2013-02-28 | Nagel Maschinen- Und Werkzeugfabrik Gmbh | Finishing machine for finishing curved workpiece surfaces on workpieces |
CN102554728B (en) * | 2012-01-11 | 2014-01-01 | 绍兴市装璜电化有限公司 | Beveled pipe polishing fixture |
CN102825528B (en) * | 2012-09-21 | 2015-01-07 | 青岛德盛机械制造有限公司 | Polishing machine |
KR102104430B1 (en) * | 2012-09-24 | 2020-04-24 | 가부시키가이샤 에바라 세이사꾸쇼 | Polishing method |
EP2712702B1 (en) | 2012-10-01 | 2014-12-03 | Supfina Grieshaber GmbH & Co. KG | Belt finishing device, belt finishing system and method for producing a belt finishing device |
DE102012019814B4 (en) | 2012-10-10 | 2014-11-06 | Hochschule Magdeburg-Stendal | Device for fine machining of convex workpiece surfaces |
CN103128632B (en) * | 2013-02-07 | 2015-07-01 | 中国海洋石油总公司 | Fusion epoxy powder coating surface processing device and adjusting method thereof |
EP2803445B1 (en) | 2013-05-14 | 2015-07-08 | Supfina Grieshaber GmbH & Co. KG | Device for machining a workpiece with belt finishing |
DE202013005504U1 (en) | 2013-06-12 | 2013-06-26 | Nagel Maschinen- Und Werkzeugfabrik Gmbh | Pressing device for finishing belt and device for finishing peripheral surfaces on cylindrical workpiece sections |
CN103317419B (en) * | 2013-06-17 | 2016-02-10 | 深圳市华星光电技术有限公司 | Lapping device |
EP2823934B1 (en) * | 2013-07-09 | 2015-02-18 | Supfina Grieshaber GmbH & Co. KG | Device for finishing a peripheral area of a workpiece and method for operating the device |
DE112014004236A5 (en) * | 2013-09-16 | 2016-06-09 | Thielenhaus Technologies Gmbh | Method for operating a device for the mechanical finishing of circumferential surfaces on workpieces |
KR101604615B1 (en) * | 2013-12-09 | 2016-03-21 | 두산중공업 주식회사 | Generator collector ring polishing machine |
DE102014200445A1 (en) | 2014-01-13 | 2015-07-16 | Supfina Grieshaber Gmbh & Co. Kg | pressing device |
DE202014000094U1 (en) * | 2014-01-13 | 2014-02-18 | Supfina Grieshaber Gmbh & Co. Kg | pressing device |
WO2015124205A1 (en) * | 2014-02-21 | 2015-08-27 | Supfina Grieshaber Gmbh & Co. Kg | Band finishing apparatus and method for controlling the movement of a finishing band |
CN103786083B (en) * | 2014-02-24 | 2016-05-11 | 苏州卡波尔模具科技有限公司 | Glass mold cavity polissoir |
DE102014208319B4 (en) * | 2014-05-05 | 2021-05-06 | Supfina Grieshaber Gmbh & Co. Kg | Tape finishing device and method of operating a tape finishing device |
DE202014102403U1 (en) * | 2014-05-22 | 2014-06-06 | Thielenhaus Technologies Gmbh | Pressing device with a toothed belt |
DE102014213194A1 (en) | 2014-07-08 | 2016-01-28 | Supfina Grieshaber Gmbh & Co. Kg | Pressing device for pressing a Finisbands against a workpiece surface |
DE102014214719A1 (en) | 2014-07-25 | 2016-01-28 | Supfina Grieshaber Gmbh & Co. Kg | finish device |
DE102014018784A1 (en) * | 2014-12-19 | 2016-06-23 | Thyssenkrupp Presta Teccenter Ag | Method for generating a cam profile of a cam assembly of a camshaft and camshaft |
DE102015008814A1 (en) * | 2015-07-10 | 2017-01-12 | Thielenhaus Technologies Gmbh | Pressure shoe with expansion chamber |
DE102015221939B4 (en) * | 2015-11-09 | 2018-10-31 | Supfina Grieshaber Gmbh & Co. Kg | Finishing belt device and method for finish machining a workpiece |
KR101653941B1 (en) * | 2016-02-15 | 2016-09-02 | 김지영 | Grinding device for cutting edge of wood panel |
CN107756158A (en) * | 2016-08-17 | 2018-03-06 | 宝山钢铁股份有限公司 | A kind of processing unit (plant) and its processing method for improving roller surface cleannes |
DE102016116038A1 (en) | 2016-08-29 | 2018-03-01 | Supfina Grieshaber Gmbh & Co. Kg | Surface treatment device, in particular finishing or honing device |
DE102016216633B4 (en) | 2016-09-02 | 2020-06-10 | Nagel Maschinen- Und Werkzeugfabrik Gmbh | Belt finishing unit and pressing device therefor |
IT201600091311A1 (en) * | 2016-09-09 | 2018-03-09 | Bersigotti Patrizia | PROCESSING APPARATUS |
EP3335832B1 (en) * | 2016-12-15 | 2021-02-03 | Ebara Corporation | Polishing apparatus and pressing pad for pressing polishing tool |
JP6974117B2 (en) * | 2016-12-15 | 2021-12-01 | 株式会社荏原製作所 | Polishing device and pressing pad for pressing the polishing tool |
DE102017201120B3 (en) | 2017-01-24 | 2018-06-21 | Nagel Maschinen- Und Werkzeugfabrik Gmbh | Pressure device for finishing belt and belt finishing device |
US10369678B2 (en) * | 2017-09-19 | 2019-08-06 | The Boeing Company | Frame, and abrading system, and a method for using the same |
CN107584338A (en) * | 2017-10-30 | 2018-01-16 | 太湖县爱杰机械铸造有限公司 | Car panel die surface grinding glossing |
DE112018006359A5 (en) * | 2017-12-14 | 2020-10-01 | Thielenhaus Technologies Gmbh | Pressure shoe |
CN109318093A (en) * | 2018-10-19 | 2019-02-12 | 重庆希泽机械设备制造有限公司 | Logical machine crankshaft automatic abrasive belt polishes special plane |
CN110722331B (en) * | 2019-11-04 | 2021-04-06 | 杭州优固光电有限公司 | Lamp post processing technology |
CN111644948B (en) * | 2020-05-13 | 2022-05-06 | 中宝金源(深圳)产业发展有限公司 | Automatic burnishing and polishing device of ring |
CN111761476A (en) * | 2020-07-13 | 2020-10-13 | 福州晋安区格撕图科技有限公司 | Polisher suitable for multiaspect is polished |
CN112355828A (en) * | 2020-11-01 | 2021-02-12 | 新乡专知技术服务有限公司 | Polishing equipment for long and thin metal pipe |
CN113146431B (en) * | 2021-04-22 | 2022-12-13 | 潍坊科技学院 | Automobile wheel hub makes surface treatment processing machinery |
CN114406858B (en) * | 2022-01-25 | 2022-11-25 | 南京铖联激光科技有限公司 | 3D prints grinding machine for product |
CN114619339B (en) * | 2022-05-13 | 2022-07-15 | 徐州金之泰包装新材料科技有限公司 | Equipment for finely grinding outer surface of ceramic packaging container before glazing |
CN115229653B (en) * | 2022-08-03 | 2023-07-14 | 浙江工业大学 | High-efficiency polishing device and method for single crystal optical fiber |
CN115781447B (en) * | 2023-02-10 | 2023-04-28 | 常州瑞德丰精密技术有限公司 | New energy battery connection piece wire drawing device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5951377A (en) † | 1996-08-01 | 1999-09-14 | Radtec, Inc. | Microfinishing machine |
US20030003854A1 (en) † | 2000-06-07 | 2003-01-02 | Deware William R. | Contour sanding apparatus and kit |
EP1514640A2 (en) † | 2003-09-12 | 2005-03-16 | Thielenhaus Technologies GmbH | Method and apparatus for finishing shafts, especially crank- and camshafts |
DE10342139A1 (en) † | 2003-09-12 | 2005-04-07 | Thielenhaus Technologies Gmbh | Process for finishing peripheral surfaces on wave-shaped workpieces |
Family Cites Families (48)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3123947A (en) * | 1964-03-10 | Forming tool | ||
US1013980A (en) * | 1909-03-11 | 1912-01-09 | Olmedo Cortez Wysong | Belt sandpapering-machine. |
DE844420C (en) | 1951-01-06 | 1952-07-21 | Ernst Ebner | Belt grinder |
DE879368C (en) | 1951-02-22 | 1953-06-11 | Micromatic Hone Corp | Device for fine machining, in particular lapping or honing of cylindrical surfaces |
US2637956A (en) * | 1952-03-28 | 1953-05-12 | Minnesota Mining & Mfg | Coated abrasive belt |
FR1329559A (en) | 1956-12-28 | 1963-06-14 | Method and devices for finishing metal parts | |
US3283447A (en) * | 1964-03-19 | 1966-11-08 | Hiram W Cretsinger | Platen for contour sanding, grinding and polishing |
US3566549A (en) * | 1969-01-21 | 1971-03-02 | James A Britton | Flexible all purpose drill attachment |
US3874126A (en) * | 1971-10-15 | 1975-04-01 | Remington Arms Co Inc | Flexible hand held abrading tool |
US3774355A (en) * | 1971-10-15 | 1973-11-27 | Remington Arms Co Inc | Armored metal file band and production thereof |
US4084356A (en) * | 1976-06-01 | 1978-04-18 | Macmillan Bloedel Limited | Method of finishing a random contoured surface |
DE7619792U1 (en) * | 1976-06-23 | 1977-03-17 | Fa. Carl Freudenberg, 6940 Weinheim | SANDING AND CLEANING CLOTH |
US4682444A (en) | 1984-05-07 | 1987-07-28 | Industrial Metal Products Corporation | Microfinishing apparatus and method |
CS263839B1 (en) | 1987-06-29 | 1989-05-12 | Strejc Josef | Superfinishing head |
DE3813484A1 (en) * | 1988-04-21 | 1989-11-02 | Ford Werke Ag | DEVICE FOR FINISHING THE CRANKSHAFT PINS |
FR2719516B1 (en) * | 1994-05-04 | 1996-07-26 | Procedes Machines Speciales | Tools for the grooming of cylindrical spans with diameter control of spans. |
DE4426923A1 (en) * | 1994-07-29 | 1996-02-01 | Grieshaber Masch | Device for the surface treatment of workpieces |
DE4444239C3 (en) | 1994-12-13 | 2003-05-08 | Supfina Grieshaber Gmbh & Co | finishing machine |
IT239281Y1 (en) * | 1995-03-29 | 2001-02-26 | Gaetano Balbi | SPECIFIC TOOL FOR GROUTING AND ABRADING CONCAVE ECONVEX SURFACES |
US5593340A (en) * | 1995-09-28 | 1997-01-14 | Dac Vision, Inc. | Castable ophthalmic lens polishing lap and method |
US5695391A (en) * | 1995-12-28 | 1997-12-09 | Supfina Grieshaber Gmbh & Co. | Super finishing machine |
EP0781627B1 (en) | 1995-12-28 | 2000-03-22 | Supfina Grieshaber GmbH & Co. | Superfinishing machine |
DE19607775A1 (en) | 1996-03-01 | 1997-09-04 | Nagel Masch Werkzeug | Finishing appliance for especially machine crankshafts and camshafts |
EP0802017B1 (en) * | 1996-04-19 | 1999-10-27 | Ernst Thielenhaus GmbH & Co. KG | Device for honing shafts, particularly crankshafts |
FR2758756B1 (en) * | 1997-01-30 | 1999-02-26 | Procede Machines Speciales Spm | MACHINE ASSEMBLY BY ABRASIVE BELT OF A CYLINDRICAL RANGE OF A WORKPIECE |
US6286498B1 (en) * | 1997-04-04 | 2001-09-11 | Chien-Min Sung | Metal bond diamond tools that contain uniform or patterned distribution of diamond grits and method of manufacture thereof |
US5954571A (en) * | 1997-05-15 | 1999-09-21 | Case; James W | Rounded cornerbead sanding tool |
DE29719168U1 (en) * | 1997-10-29 | 1999-03-04 | Supfina Grieshaber GmbH & Co., 42859 Remscheid | Device for machining cylindrical workpieces |
DE19800885A1 (en) * | 1998-01-13 | 1999-07-15 | Thielenhaus Ernst Gmbh & Co Kg | Device for finishing peripheral surfaces on rotating workpieces, in particular for finishing cam discs and cams of a camshaft |
US6309287B2 (en) * | 1998-01-15 | 2001-10-30 | Ford Global Technologies | Cam micro-finishing tool |
EP1094918B1 (en) * | 1998-02-19 | 2005-05-04 | Minnesota Mining And Manufacturing Company | Abrasive article and method for grinding glass |
JPH11320374A (en) | 1998-05-12 | 1999-11-24 | Toshiba Mach Co Ltd | Outer periphery polishing tool for rod-form member |
DE29819442U1 (en) | 1998-10-31 | 1999-01-14 | Nagel Maschinen- und Werkzeugfabrik GmbH, 72622 Nürtingen | Device for fine machining an essentially cylindrical workpiece surface |
DE19921043C2 (en) | 1999-05-07 | 2002-09-19 | Juergen Heesemann | belt sander |
EP1053826A3 (en) * | 1999-05-15 | 2003-02-05 | Supfina Grieshaber GmbH & Co. KG | Apparatus for belt finishing of curved workpiece surfaces |
CN2381435Y (en) * | 1999-06-21 | 2000-06-07 | 文登天润曲轴有限公司 | crankshaft polishing machine |
EP1112811B1 (en) | 2000-01-03 | 2005-04-27 | Suhner Intertrade AG | Belt grinding machine for grinding of tubing |
FR2808463B1 (en) * | 2000-05-04 | 2002-09-13 | Procedes Et Machines Speciales | ABRASIVE TAPE MACHINE FOR CYLINDRICAL DOORS ON PARTS |
US20020086627A1 (en) * | 2001-01-03 | 2002-07-04 | Andrews William L. | Flex plate attachment for use with belt sanders |
JP2004058241A (en) * | 2002-07-31 | 2004-02-26 | Matsushita Electric Ind Co Ltd | Polishing method and polishing pad |
NZ519162A (en) * | 2002-08-27 | 2004-10-29 | Stephen Ross Hope | Abrasive holder |
DE602004007418T2 (en) * | 2003-02-12 | 2008-04-30 | Nissan Motor Co., Ltd., Yokohama | Apparatus and method for surface finishing |
DE10332605B4 (en) | 2003-07-17 | 2005-09-15 | Ibz Gmbh | Pressing device for a surface treatment device |
EP1506839B1 (en) | 2003-08-15 | 2005-11-09 | Supfina Grieshaber GmbH & Co. KG | Finishing tool |
US20060258276A1 (en) * | 2005-05-16 | 2006-11-16 | Chien-Min Sung | Superhard cutters and associated methods |
US7048618B1 (en) * | 2004-09-13 | 2006-05-23 | Cramer David K | Tool having an adjustable curved working surface and a method for using the tool |
DE202006020657U1 (en) | 2006-03-23 | 2009-05-28 | Maschinen- Und Stahlbau Julius Lippert Gmbh & Co. Kg | Grinding device for grinding the foot of a ceramic or porcelain article |
CN2930968Y (en) * | 2006-08-04 | 2007-08-08 | 天润曲轴有限公司 | Crankshaft thrust surface polishing device |
-
2007
- 2007-10-16 DE DE102007051047.2A patent/DE102007051047B4/en active Active
-
2008
- 2008-10-15 EP EP08840276.3A patent/EP2212058B2/en not_active Not-in-force
- 2008-10-15 WO PCT/EP2008/008714 patent/WO2009049868A1/en active Application Filing
- 2008-10-15 DE DE202008018526.2U patent/DE202008018526U1/en not_active Expired - Lifetime
- 2008-10-15 DE DE202008018607.2U patent/DE202008018607U1/en not_active Expired - Lifetime
- 2008-10-15 AT AT08840276T patent/ATE516111T1/en active
- 2008-10-15 US US12/738,570 patent/US8517804B2/en not_active Expired - Fee Related
- 2008-10-15 CN CN201610536802.3A patent/CN106425773A/en active Pending
- 2008-10-15 ES ES08840276.3T patent/ES2370991T5/en active Active
- 2008-10-15 CN CN2008801212734A patent/CN101903130A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5951377A (en) † | 1996-08-01 | 1999-09-14 | Radtec, Inc. | Microfinishing machine |
US20030003854A1 (en) † | 2000-06-07 | 2003-01-02 | Deware William R. | Contour sanding apparatus and kit |
EP1514640A2 (en) † | 2003-09-12 | 2005-03-16 | Thielenhaus Technologies GmbH | Method and apparatus for finishing shafts, especially crank- and camshafts |
DE10342139A1 (en) † | 2003-09-12 | 2005-04-07 | Thielenhaus Technologies Gmbh | Process for finishing peripheral surfaces on wave-shaped workpieces |
Also Published As
Publication number | Publication date |
---|---|
DE202008018526U8 (en) | 2015-06-03 |
DE102007051047A1 (en) | 2009-04-23 |
DE102007051047B4 (en) | 2023-03-23 |
CN106425773A (en) | 2017-02-22 |
DE202008018607U1 (en) | 2016-07-29 |
WO2009049868A1 (en) | 2009-04-23 |
EP2212058A1 (en) | 2010-08-04 |
DE202008018526U1 (en) | 2015-02-25 |
EP2212058B1 (en) | 2011-07-13 |
US8517804B2 (en) | 2013-08-27 |
ES2370991T3 (en) | 2011-12-26 |
ES2370991T5 (en) | 2018-06-06 |
US20100236314A1 (en) | 2010-09-23 |
ATE516111T1 (en) | 2011-07-15 |
CN101903130A (en) | 2010-12-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2212058B2 (en) | Pressing device for cutting means and apparatus and method for finishing circumferential surfaces on cylindrical parts of a workpiece | |
DE602004006654T2 (en) | Apparatus and method for surface finishing | |
EP2504125B1 (en) | Machining station and device for machining a workpiece | |
EP2750829A1 (en) | Finishing machine for finish machining of curved workpiece surfaces on workpieces | |
DE3225977A1 (en) | METHOD AND DEVICE FOR FINELY FINISHING CONVEX OR CONCAVE COVERING SURFACES OF ROTATION-SYMMETRICAL WORKPIECES, IN PARTICULAR OF ROLLER BEARING REELS | |
DE19634839A1 (en) | Fine machining with vibrating head | |
WO2012065949A1 (en) | Method and device for finish machining curved workpiece surfaces on workpieces by means of a finish belt | |
DE102014211937C5 (en) | Method and device for finish machining peripheral surfaces of rotationally symmetrical workpiece sections | |
EP1514640A2 (en) | Method and apparatus for finishing shafts, especially crank- and camshafts | |
DE102017201120B3 (en) | Pressure device for finishing belt and belt finishing device | |
EP2636482B1 (en) | Workpiece processing system and method for detailed processing of a workpiece | |
DE19850216A1 (en) | Method and device for fine machining of essentially cylindrical workpiece surfaces | |
DE4320945A1 (en) | Surface treatment device | |
DE19821982C2 (en) | Profile belt grinder | |
WO1995033595A1 (en) | Finishing machine | |
DE19607778C2 (en) | Device for finishing processing, in particular crankshafts or camshafts | |
DE10342137B4 (en) | Apparatus and method for finish machining of shafts, in particular crankshafts and camshafts | |
EP1027956A2 (en) | Apparatus for finishing of substantially cylindrical workpiece surfaces | |
DE19607776A1 (en) | Finishing outer surfaces of machine crankshafts and camshafts | |
EP0781627B1 (en) | Superfinishing machine | |
DE10065531A1 (en) | Grinding machine has fluid fill contact pressure element formed by flexible hollow body with opposing surfaces interconnected through elastomer to adapt to surface conditions | |
DE1500399B1 (en) | Rolling drive, especially for a gear cutting machine | |
DE19607821A1 (en) | Finisher for outer periphery of crankshafts or camshafts | |
EP1506839A1 (en) | Finishing tool | |
DE19607775A1 (en) | Finishing appliance for especially machine crankshafts and camshafts |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20100514 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA MK RS |
|
DAX | Request for extension of the european patent (deleted) | ||
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502008004214 Country of ref document: DE Effective date: 20110908 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: VDEP Effective date: 20110713 |
|
REG | Reference to a national code |
Ref country code: SK Ref legal event code: T3 Ref document number: E 10185 Country of ref document: SK |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2370991 Country of ref document: ES Kind code of ref document: T3 Effective date: 20111226 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110713 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111114 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110713 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111113 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110713 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110713 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111013 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110713 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110713 Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110713 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111014 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110713 Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110713 |
|
PLBI | Opposition filed |
Free format text: ORIGINAL CODE: 0009260 |
|
BERE | Be: lapsed |
Owner name: NAGEL MASCHINEN- UND WERKZEUGFABRIK G.M.B.H. Effective date: 20111031 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110713 Ref country code: IE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110713 |
|
REG | Reference to a national code |
Ref country code: HU Ref legal event code: AG4A Ref document number: E012491 Country of ref document: HU |
|
26 | Opposition filed |
Opponent name: SUPFINA GRIESHABER GMBH & CO. KG Effective date: 20120329 |
|
PLAX | Notice of opposition and request to file observation + time limit sent |
Free format text: ORIGINAL CODE: EPIDOSNOBS2 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110713 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110713 Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20111031 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R026 Ref document number: 502008004214 Country of ref document: DE Effective date: 20120329 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110713 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20111031 |
|
PLBB | Reply of patent proprietor to notice(s) of opposition received |
Free format text: ORIGINAL CODE: EPIDOSNOBS3 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110713 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20111015 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PLAB | Opposition data, opponent's data or that of the opponent's representative modified |
Free format text: ORIGINAL CODE: 0009299OPPO |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20111013 |
|
R26 | Opposition filed (corrected) |
Opponent name: SUPFINA GRIESHABER GMBH & CO. KG Effective date: 20120329 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20121031 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20121031 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20110713 |
|
PLAB | Opposition data, opponent's data or that of the opponent's representative modified |
Free format text: ORIGINAL CODE: 0009299OPPO |
|
PLAB | Opposition data, opponent's data or that of the opponent's representative modified |
Free format text: ORIGINAL CODE: 0009299OPPO |
|
R26 | Opposition filed (corrected) |
Opponent name: SUPFINA GRIESHABER GMBH & CO. KG Effective date: 20120329 |
|
R26 | Opposition filed (corrected) |
Opponent name: SUPFINA GRIESHABER GMBH & CO. KG Effective date: 20120329 |
|
APBM | Appeal reference recorded |
Free format text: ORIGINAL CODE: EPIDOSNREFNO |
|
APBP | Date of receipt of notice of appeal recorded |
Free format text: ORIGINAL CODE: EPIDOSNNOA2O |
|
APAH | Appeal reference modified |
Free format text: ORIGINAL CODE: EPIDOSCREFNO |
|
APBM | Appeal reference recorded |
Free format text: ORIGINAL CODE: EPIDOSNREFNO |
|
APBP | Date of receipt of notice of appeal recorded |
Free format text: ORIGINAL CODE: EPIDOSNNOA2O |
|
APBQ | Date of receipt of statement of grounds of appeal recorded |
Free format text: ORIGINAL CODE: EPIDOSNNOA3O |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 8 |
|
PLAB | Opposition data, opponent's data or that of the opponent's representative modified |
Free format text: ORIGINAL CODE: 0009299OPPO |
|
R26 | Opposition filed (corrected) |
Opponent name: SUPFINA GRIESHABER GMBH & CO. KG Effective date: 20120329 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 9 |
|
APBU | Appeal procedure closed |
Free format text: ORIGINAL CODE: EPIDOSNNOA9O |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 10 |
|
PUAH | Patent maintained in amended form |
Free format text: ORIGINAL CODE: 0009272 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: PATENT MAINTAINED AS AMENDED |
|
27A | Patent maintained in amended form |
Effective date: 20180328 |
|
AK | Designated contracting states |
Kind code of ref document: B2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R102 Ref document number: 502008004214 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: DC2A Ref document number: 2370991 Country of ref document: ES Kind code of ref document: T5 Effective date: 20180606 |
|
REG | Reference to a national code |
Ref country code: SK Ref legal event code: T5 Ref document number: E 10185 Country of ref document: SK |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20191023 Year of fee payment: 12 Ref country code: SK Payment date: 20191011 Year of fee payment: 12 Ref country code: HU Payment date: 20191104 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20191021 Year of fee payment: 12 Ref country code: FR Payment date: 20191022 Year of fee payment: 12 Ref country code: ES Payment date: 20191120 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20191023 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20201016 Year of fee payment: 13 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 502008004214 Country of ref document: DE |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20201015 |
|
REG | Reference to a national code |
Ref country code: SK Ref legal event code: MM4A Ref document number: E 10185 Country of ref document: SK Effective date: 20201015 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20201031 Ref country code: SK Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20201015 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210501 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20201015 Ref country code: HU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20201016 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20201015 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20220128 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20201016 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 516111 Country of ref document: AT Kind code of ref document: T Effective date: 20211015 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20211015 |