EP3409416A1 - Fraiseuse comprenant une unité porte-pièces - Google Patents

Fraiseuse comprenant une unité porte-pièces Download PDF

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Publication number
EP3409416A1
EP3409416A1 EP17173258.9A EP17173258A EP3409416A1 EP 3409416 A1 EP3409416 A1 EP 3409416A1 EP 17173258 A EP17173258 A EP 17173258A EP 3409416 A1 EP3409416 A1 EP 3409416A1
Authority
EP
European Patent Office
Prior art keywords
workpiece
workpiece carrier
grinding
carrier unit
axis
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.)
Granted
Application number
EP17173258.9A
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German (de)
English (en)
Other versions
EP3409416B1 (fr
Inventor
Josef Preis
Christoph Wernz
Andreas REIMSCHÜSSEL
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Diskus Werke Schleiftechnik GmbH
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Diskus Werke Schleiftechnik GmbH
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Priority to EP17173258.9A priority Critical patent/EP3409416B1/fr
Publication of EP3409416A1 publication Critical patent/EP3409416A1/fr
Application granted granted Critical
Publication of EP3409416B1 publication Critical patent/EP3409416B1/fr
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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
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/04—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor involving a rotary work-table
    • 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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • 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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/06—Work supports, e.g. adjustable steadies
    • 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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/06—Work supports, e.g. adjustable steadies
    • B24B41/061—Work supports, e.g. adjustable steadies axially supporting turning workpieces, e.g. magnetically, pneumatically

Definitions

  • a grinding method for machining the surface of workpieces comprising the following steps: a) providing a grinding machine with at least one grinding tool, wherein the grinding tool is rotatably mounted about a Schleiftechnikmaschinese, b) providing at least two workpieces to be machined, c) arranging the Workpieces on one of at least two workpiece carriers of a workpiece carrier unit, wherein the at least two workpiece carriers are rotatably mounted about a workpiece carrier axis, and wherein the workpiece carrier unit is rotatably mounted about a workpiece carrier unit axis, and d) grinding the workpiece surfaces of the workpieces, wherein the grinding tool rotates about the grinding tool axis wherein the at least two workpiece carriers rotate about a workpiece carrier axis, and wherein the workpiece surfaces of at least two arranged on other workpiece carriers workpieces simultaneously to be edited.
  • the invention relates to a grinding machine having at least one workpiece carrier unit with a plurality of workpiece carriers, wherein the at least two workpiece carriers are rotatably mounted about a workpiece carrier axis, and wherein the workpiece carrier unit is rotatably mounted about a workpiece carrier unit axis.
  • grinding is generally understood a machining production process in which excess material is separated in the form of chips.
  • the grinding tools used for grinding - for example grinding wheels - are often produced by bonding a bulk material, for example corundum, with a binder. Grinding with a rotating tool - for example, a Grinding wheel - can be distinguished from other grinding methods, for example belt grinding.
  • Such a grinding machine is for example from the EP 0 941 803 B1 known there in the design of a double-plan grinder with two parallel deliverable grinding wheels and with a transport device with three workpiece holders.
  • a disadvantage of such methods and devices is the property that always only those workpiece holder rotates, on which the currently processed workpiece is arranged or on which the currently processed workpieces are arranged. Meanwhile, the other workpiece holders stand still, so that they can be loaded or unloaded. Another disadvantage is that only height equal workpieces can be ground.
  • the previously known methods for simultaneous processing of multiple workpieces with unstrained loops also have the disadvantage that only outer flat surfaces can be edited and that can only be placed on outer flat surfaces and ground parallel thereto.
  • the invention is therefore based on the object to design and further develop the grinding machine described above such that, while avoiding the aforementioned disadvantages, the most efficient and precise grinding operation possible.
  • This object is achieved by a grinding machine according to claim 1.
  • This grinding machine is characterized in particular by the fact that the workpiece carriers are roller-mounted.
  • a grinding method for machining the surface of workpieces comprising the following steps: a) providing a grinding machine with at least one grinding tool, wherein the grinding tool is rotatably mounted about a Schleiftechnikmaschinese, b) providing at least two workpieces to be machined, c) arranging the Workpieces on one of at least two workpiece carriers of a workpiece carrier unit, wherein the at least two workpiece carriers are rotatably mounted about a workpiece carrier axis, and wherein the workpiece carrier unit is rotatably mounted about a workpiece carrier unit axis, and d) grinding the workpiece surfaces of the workpieces, wherein the grinding tool rotates about the grinding tool axis wherein the at least two workpiece carriers rotate about a workpiece carrier axis, and wherein the workpiece surfaces of at least two arranged on other workpiece carriers workpieces simultaneously to be edited.
  • the method serves to machine the surface of workpieces, in particular to grind.
  • a first step is to provide a grinding machine with at least one grinding tool.
  • the grinding machine may also have two or more grinding tools.
  • the grinding tools may, for example, be grinding wheels.
  • the grinding tool is rotatably mounted about a grinding tool axis, it can therefore perform a rotational movement.
  • Another step is that at least two to be processed Workpieces are provided.
  • a further step provides that the workpieces are arranged on one of at least two workpiece carriers of a workpiece carrier unit. In this case, the at least two workpiece carriers are rotatably mounted in each case about a workpiece carrier axis.
  • three or more workpiece carrier in this case, preferably all workpiece carriers are rotatably mounted about a workpiece carrier axis.
  • the workpiece carrier unit is rotatably mounted about a workpiece carrier unit axis.
  • Another step involves grinding the workpiece surfaces of the workpieces.
  • the grinding tool rotates around the grinding tool axis.
  • the at least two workpiece carriers rotate about one workpiece carrier axis in each case. If three or more workpiece carriers are provided, preferably all workpiece carriers rotate in each case a workpiece carrier axis.
  • the workpiece surfaces of at least two workpieces arranged on different or different workpiece carriers are processed simultaneously.
  • the workpiece surfaces of several workpieces can be processed simultaneously even if the workpieces are not arranged on the same workpiece carrier.
  • the simultaneous grinding of several workpieces initially has the advantage of efficient process control.
  • Another advantage is that those workpieces that are ground simultaneously, can be ground very precisely to an identical dimension or to the same degree. This is due to the fact that the most prominent point of the grinding tool - ie the lowest point - reaches all workpieces.
  • the workpiece carrier unit rotates completely around the workpiece carrier unit axis.
  • a complete rotation is meant a rotation of more than 360 °.
  • a continuous rotation ie a rotation with a constant direction of rotation, has the advantage over an oscillating movement, for example, that the workpiece carrier unit does not have to be braked and accelerated.
  • the workpiece carrier unit rotates at a constant rotational speed.
  • a further embodiment of the method provides that the workpiece carrier unit oscillates about the workpiece carrier unit axis.
  • An oscillation is understood to mean a rotary movement in which the direction of rotation changes, that is to say a reciprocating movement.
  • An oscillating movement has the advantage that the workpieces arranged on the workpiece carriers of the workpiece carrier unit are moved only within a limited range. This allows, for example, the grinding of inner surfaces of the workpieces, including the grinding tools must be introduced into the workpieces.
  • the workpieces are ground on an outer surface.
  • the workpieces are ground on an inner surface.
  • the grinding of the outer surfaces has the advantage that several workpieces can be ground by the same grinding tool. This is not possible when sanding inner surfaces, as this requires the grinding tools ("internal spindles") to be inserted into the workpiece - for example into the interior of a cylinder ring. Even when sanding inner surfaces, several workpieces can be ground simultaneously if there are more than one abrasive tool.
  • the ability to grind both outer surfaces and inner surfaces for example, a defined dimension between an outer plane surface and an inner surface, such as an inner shoulder, are generated.
  • the grinding tool axis and the workpiece carrier unit axis run parallel, in particular collinear.
  • a parallel course of the axes is achieved that the distance between the grinding tool and the workpiece carrier unit in each rotational position is constant.
  • parallel axes of rotation make it possible for the rotating grinding tool not to come into contact with its peripheral surface (“peripheral grinding") but with one of its side surfaces (“side grinding”) with the workpiece.
  • peripheral grinding peripheral surface
  • side grinding side surfaces
  • the grinding tool axis and the workpiece carrier unit axis are arranged not only parallel but even collinear, it is achieved that the grinding tool is arranged centrally above the workpiece carrier unit and in this way can cover the largest possible area of the workpiece carrier unit. This allows the simultaneous processing of as many workpieces.
  • the symmetrical arrangement of the grinding tool centrally above the workpiece carrier unit allows a grinding process even when the workpiece carrier unit is stationary, provided that the workpiece carrier and the grinding tool rotate.
  • a parallel arrangement of the axes is sufficient in most cases, a collinear arrangement is required only in special cases.
  • multi-spindle can be provided that the grinding tools can be individually delivered in the axial direction to allow individual constitutionalkorrekturen.
  • At least one workpiece carrier axis runs parallel to the workpiece carrier unit axis. It can be provided that all workpiece carrier axes run parallel to the workpiece carrier unit axis. As an alternative or in addition to this, it can be provided in a further embodiment that at least one workpiece carrier axis runs inclined and / or crossed to the workpiece carrier unit axis. It can be provided that all workpiece carrier axes inclined and / or entangled to the workpiece carrier unit axis run. By a parallel course of the axes, a particularly good flatness, recognizable by the cross-grinding pattern, as well as a good perpendicularity of the ground surfaces to the workpiece rotation axis can be achieved.
  • the workpiece carriers can be inclined in the radial direction of the workpiece carrier unit, namely radially inwards or radially outwards.
  • the workpiece carriers can be entangled in the circumferential direction or in the tangential direction of the workpiece carrier unit, in the direction of rotation or against the direction of rotation of the workpiece carrier unit.
  • the microsection can be influenced.
  • the entanglement angle is set to 0 °, perfect flatness can be achieved, as can be seen on the cross-cut.
  • a specific angle of intersection (not equal to 0 °, ie greater than 0 ° or less than 0 °), a directional microsection can be generated.
  • workpieces of different heights are understood in particular to be workpieces which, starting from the workpiece carrier, extend to different extents in the direction of the grinding tool. This procedure can be made possible, for example, by arranging some or all of the workpieces on supports during grinding. By placing a support between the workpiece carrier and the workpiece height differences can be compensated. For this purpose, different thicknesses or different lengths can be used. Also height differences can be compensated by specific tool carrier.
  • the rotational speed of the workpiece carriers is adjustable independently of the rotational speed of the workpiece carrier unit.
  • the direction of rotation of the workpiece carrier independent of the direction of rotation of the workpiece carrier unit is adjustable.
  • both the rotational speed and / or the rotational direction of each workpiece carrier is adjustable independently of the rotational speed and / or the rotational direction of the workpiece carrier unit.
  • the grinding process can be optimally adjusted to the type of workpieces and to the desired grinding result.
  • the workpiece carriers rotate during the grinding process at a different angular velocity than the workpiece carrier unit. It may be provided that the workpiece carriers rotate at a higher angular velocity or at a lower angular velocity than the workpiece carrier unit; however, it is preferred that the workpiece carriers rotate at a higher angular velocity than the workpiece carrier unit.
  • the grinding tool is cylindrical in shape and is mounted relatively movable in the axial direction and / or in the radial direction. Due to the cylindrical shape, flat surfaces can be ground (by the end face or side surface of the grinding tool) and curved surfaces can be ground (by the circumferential surface or lateral surface of the grinding tool).
  • the axial mobility allows a placement of the grinding tool on the workpiece and a lifting of the grinding tool from the workpiece.
  • the mobility in the radial direction has particular advantages when grinding inner surfaces, since the grinding tool can first be introduced into the work piece and then - by radial displacement - can be made to the surface to be ground.
  • each grinding tool is cylindrically shaped and is mounted so as to be movable relative to the workpiece carrier unit and / or to the workpiece in the axial direction and / or in the radial direction.
  • Curved surfaces can be ground by grinding machines with several grinding tools ("multi-spindle"), as in multi-spindle machines, the inner and outer curved lateral surfaces of the workpiece are easily accessible with the relatively small tools.
  • a feed movement can be generated by slight pivoting of the workpiece carrier unit.
  • the object described above is achieved by a grinding machine with at least one workpiece carrier unit with a plurality of workpiece carriers, wherein the at least two workpiece carriers are rotatably mounted about a workpiece carrier axis, and wherein the workpiece carrier unit is rotatably mounted about a workpiece carrier unit axis.
  • the grinding machine is characterized in that the workpiece carriers are roller-mounted. With the workpiece carrier unit (also called “rotary table”), the grinding method described above can be performed.
  • the workpiece carriers are mounted roller bearings, they can be driven with very low friction.
  • a very precise and virtually backlash-free storage of the workpiece carrier can be achieved by rolling bearings.
  • the workpiece carriers have a housing and a shaft, wherein the shaft is roller-mounted relative to the housing.
  • the shaft of each workpiece carrier can therefore be driven individually.
  • suitable rolling bearings e.g., spherical roller bearings
  • angular mobility can be achieved whereby the shaft can be slightly tilted relative to the housing.
  • the grinding machine has, in addition to the workpiece carrier unit, at least one grinding tool, wherein the grinding tool is rotatably mounted about a grinding tool axis. With the grinding machine, the grinding method described above can be carried out. In grinding machines with a plurality of grinding tools (“multi-spindle”), it is preferably provided that the tool spindles can be individually delivered to produce defined workpiece dimensions.
  • the grinding machine can be supplemented according to a further embodiment by at least one gripper for loading and / or unloading the workpiece carrier.
  • the workpiece carrier of the workpiece carrier unit can be loaded and unloaded with workpieces, whereby an automated and efficient process management is possible.
  • the at least one gripper is designed as a turning gripper.
  • a gripper is understood, which is rotatable by at least 180 °, but preferably by 360 °.
  • the gripper can turn workpieces, for example, to allow processing of the workpieces on different sides of the workpieces.
  • the essential movement (longest path) of the workpieces preferably takes place transversely to the longitudinal direction of the workpieces, ie transversely to the direction of the workpiece axis.
  • the workpiece carrier unit and the workpiece carriers can be driven independently of one another, in particular can be driven simultaneously.
  • Independent drives are understood in particular to mean that the rotational speed of the workpiece carriers can be set independently of the rotational speed of the workpiece carrier unit.
  • the direction of rotation of the workpiece carrier is adjustable independently of the direction of rotation of the workpiece carrier unit.
  • both the rotational speed and / or the rotational direction of each workpiece carrier is adjustable independently of the rotational speed and / or the rotational direction of the workpiece carrier unit.
  • the independence of the drives does not exclude that the rotational movement of the workpiece carrier unit and the rotational movement of the workpiece carrier are coordinated, for example, coupled according to a particularly simple embodiment (similar to a planetary gear).
  • At least one workpiece carrier axis runs parallel to the workpiece carrier unit axis. It can be provided that all workpiece carrier axes run parallel to the workpiece carrier unit axis. Alternatively or additionally, it can be provided that at least one workpiece carrier axis runs inclined and / or crossed to the workpiece carrier unit axis. It can be provided that all workpiece carrier axes are inclined and / or crossed to the workpiece carrier unit axis. By a parallel course of the axes, a particularly good flatness, recognizable by the cross-grinding pattern, as well as a good perpendicularity of the ground surfaces to the workpiece rotation axis can be achieved.
  • the workpiece carriers can be inclined in the radial direction of the workpiece carrier unit, namely radially inwards or radially outwards.
  • the workpiece carriers can be entangled in the circumferential direction or in the tangential direction of the workpiece carrier unit, in the direction of rotation or against the direction of rotation of the workpiece carrier unit.
  • the microsection can be influenced.
  • the entanglement angle is set to 0 °, perfect flatness can be achieved, as can be seen on the cross-cut.
  • a specific angle of intersection (not equal to 0 °, ie greater than 0 ° or less than 0 °), a directional microsection can be generated.
  • all workpiece carriers are tilted and / or 29ränkbar stored.
  • the position of the workpiece carrier axis can be changed.
  • the workpiece carriers can assume different positions.
  • the workpiece carrier axis can be adjusted so that it runs parallel to the workpiece carrier unit axis.
  • the workpiece carrier axis can be adjusted so that they are inclined, so inclined or crossed to the workpiece carrier unit axis runs.
  • the mounting of the workpiece carriers can be designed such that the workpiece carriers can be tilted in the radial direction of the workpiece carrier unit (radially inwards or radially outwards).
  • the mounting of the workpiece carrier can be designed such that the workpiece carriers in the circumferential direction of the workpiece carrier unit are 29ränkbar (in the direction of rotation or against the direction of rotation of the workpiece carrier unit).
  • the storage of the workpiece carrier can be designed, for example, as a calotte bearing, preferably as a lockable calotte bearing.
  • the inclination or the entanglement can be achieved by elastic material deformation of certain areas of the workpiece carrier.
  • the workpiece carrier has, for example, a rotating shaft, a housing and bearings (in particular rolling bearings).
  • Decisive for the inclination of the axis of a workpiece carrier is the tilting of the bearing of the workpiece carrier. This is done by tilting the (single- or multi-part housing with the bearing seats as a whole or being elastically deformed in areas.)
  • the axis can be adjusted if only one of the two bearings is slightly adjusted to reduce the required deformation force helpful if the case is intentionally weakened.
  • a further embodiment of the workpiece carrier unit provides that at least one of the workpiece carriers can be fixed in an inclined and / or entangled position.
  • at least one of the workpiece carriers for fixing the inclined and / or entangled position has a fixable adjusting ring.
  • To adjust the inclination and entanglement can be provided that at least one of the workpiece carrier has adjusting screws for adjusting its inclination and / or entanglement.
  • Both the inclination angle and the Verschränkungswinkel should be adjustable and fixable in the adjusted position.
  • the inclination or entanglement can be achieved by a suitable storage (eg Kalottenlagerung) or by elastic deformation of the housing.
  • the fixation can for example by a collar take place, which is preferably fixed by axial locking screws. A particularly precise adjustment can be achieved by adjusting screws.
  • the workpiece carriers have different workpiece holders.
  • the workpiece carriers have differently high workpiece holders.
  • the workpiece holders can be designed integrally-that is, as part of the workpiece carriers-or designed as a separate component, for example as a support, which is arranged between the workpiece carrier and the workpiece. It can be exciting workpiece holders, positive workpiece holders and / or frictional workpiece holders.
  • the workpiece carriers preferably have clamping means with which a frictional clamping of the workpieces is possible.
  • clamping means with which a frictional clamping of the workpieces is possible.
  • rotating workpiece carrier disks are used, which may be simply shaped metal sheets. These sheets may contain holes that can receive the workpieces directly.
  • floating workpiece carriers can be provided, which can also be designed as simple sheets.
  • a disadvantage of this arrangement is that it does not represent inherently rigid storage. This disadvantage can be counteracted by a non-positive clamping of the workpieces.
  • Fig. 1A shows a first embodiment of a grinding machine 1 according to the invention in a perspective view.
  • the illustrated grinding machine 1 is a so-called surface grinding machine, more precisely a side surface grinding machine.
  • the grinding machine 1 comprises a grinding tool 2, which is rotatably mounted about a grinding tool axis X2.
  • the grinding tool axis X2 is oriented vertically or vertically ("vertical spindle").
  • the grinding tool 2 is a grinding wheel which is approximately cylindrically shaped.
  • the grinding tool 2 is driven by a drive 3 and can be displaced in at least the vertical direction, ie in the direction of the grinding tool axis X2.
  • Grinding machine 1 shown also includes a workpiece carrier unit 4 with eight circumferentially arranged workpiece carriers 5. On each second workpiece carrier 5 - ie on a total of four of the eight workpiece carrier 5 - are arranged workpieces 6.
  • the workpiece carrier unit 4 is rotatably mounted about a workpiece carrier unit axis X4.
  • the workpiece carrier unit axis X4 is oriented vertically or vertically.
  • the workpiece carrier unit axis X4 runs collinear with the grinding tool axis X2.
  • the workpiece carriers 5 are also rotatably mounted, in each case around a workpiece carrier axis X5.
  • the workpiece carrier axes X5 are approximately vertically or vertically aligned and arranged parallel to the workpiece carrier unit axis X4.
  • the workpiece carrier axis X5 could also be arranged inclined relative to the workpiece carrier unit axis X4. This will be discussed below in connection with another embodiment of the grinding machine.
  • the grinding of the workpieces 6 takes place on the in Fig. 1 grinding machine 1 shown by the grinding tool 2 rotates about the grinding tool axis X2.
  • the workpiece carrier unit 4 rotates about the workpiece carrier unit axis X4 and the workpiece carriers 5 rotate about their workpiece carrier axes X5.
  • Abrasive tool 2 has been lowered onto the workpieces 6 to be machined, the surfaces of several workpieces 6, in particular all workpieces 6 - preferably simultaneously - detected by the grinding tool 2 and ground.
  • the grinding tool 2 and its drive 3 can be moved in the vertical direction in order to place the grinding tool 2 on the workpieces 6 and to be able to lift them off again (in FIG Fig. 1A represented by a double arrow).
  • Fig. 1B are the grinding tool 2 and the workpiece carrier unit 4 of the grinding machine 1 off Fig. 1A shown in a front view. Those areas of the grinding machine 1 that are already related Fig. 1A are described in Fig. 1B - And in all other figures - provided with corresponding reference numerals.
  • the grinding tool 2 has a flat grinding surface 7 and the workpieces 6 have a surface 8 to be processed.
  • the flat grinding surface 7 of the grinding tool 2 extends approximately at right angles to the grinding tool axis X2 and the surfaces 8 to be machined of the workpieces 6 extend approximately at right angles to the workpiece carrier axes X5.
  • the grinding tool axis X2 and the workpiece carrier unit axis X4 are collinear, while the workpiece carrier axes X5 extend parallel offset to these two axes X2, X4.
  • Shown is in Fig. 1B a machine position before the start of the grinding process; at this time exists between the grinding surface 7 of the grinding tool 2 and the surfaces to be machined 8 of the workpieces 6 in the vertical direction still a distance 9.
  • the vertical displacement of the grinding tool 2 and its drive 3 are in Fig. 1B represented by a straight double arrow; the rotational movements are not marked with arrows for reasons of clarity.
  • Fig. 1C shows the workpiece carrier unit 4 of the grinding machine 1 from Fig. 1A in a top view. Those areas of the grinding machine 1 that are already related Fig. 1A or Fig. 1B are described in Fig. 1C - And in all other figures - provided with corresponding reference numerals. In the plan view is particularly clearly visible that the grinding tool 2 to edit all four Workpieces 6 detected. Due to the rotation of the workpieces 6 about the workpiece carrier axes X5 all areas of the workpieces 6 to be ground are detected by the grinding tool 2, although the diameter D2 of the grinding tool 2 is smaller than the diameter D4 of the workpiece carrier unit 4 and although the workpieces 6 with their outer diameter D6 in Radial direction are partially disposed outside of the grinding tool 2.
  • the distance of the workpiece carrier axes X5 from the grinding tool axis X2 is less than half the diameter D2 (ie the radius) of the grinding tool 2.
  • the rotation of the grinding tool 2 and the rotation of the workpieces 6 are in Fig. 1C represented by curved arrows; it can be seen that the grinding tool 2 and the workpieces 6 have the same direction of rotation, namely in the clockwise direction.
  • the workpiece carrier unit 4 rotates about its workpiece carrier unit axis X4.
  • FIG. 2A shows a second embodiment of a grinding machine 1 'according to the invention in a perspective view. Those areas of the grinding machine 1 'already associated with Fig. 1A to Fig. 1C are described in Fig. 2A - And in all other figures - provided with corresponding reference numerals.
  • a difference between the first embodiment of the grinding machine 1 (FIG. Fig. 1A to Fig. 1C ) and the second embodiment of the grinding machine 1 '( Fig. 2A to Fig. 2C ) is that the second embodiment of the grinding machine 1 'four grinding tools 2', which are rotatably mounted around a respective grinding tool axis X2 '.
  • Fig. 2B are the grinding tools 2 'and the workpiece carrier unit 4 of the grinding machine 1' from Fig. 2A shown in a front view. Those areas of the grinding machine 1 'already associated with Fig. 2A are described in Fig. 2B - And in all other figures - provided with corresponding reference numerals.
  • the grinding tools 2 'each have a grinding surface 7', which runs approximately at right angles to the respective grinding tool axis X2 '.
  • the workpieces 6 to be machined are each arranged on a workpiece carrier 5, with the surfaces 8 of the workpieces 6 being machined this time around internal surfaces 8 acts.
  • the workpiece carriers 5 have workpiece carrier axes X5 which are offset parallel to the workpiece carrier unit axis X4.
  • the grinding tool axis X2 and the workpiece carrier unit axis X4 are collinear.
  • the vertical displacement of the grinding tools 2 'and their drive 3 are in Fig. 2B represented by a straight double arrow.
  • the grinding tools 2 ' are also displaceable in the radial direction (parallel displacement of the grinding tool axes X2'), which is not indicated by arrows for reasons of clarity.
  • Fig. 2C shows the workpiece carrier unit 4 of the grinding machine 1 'from Fig. 2A in a top view. Those areas of the grinding machine 1 'already associated with Fig. 2A or Fig. 2B are described in Fig. 2C - And in all other figures - provided with corresponding reference numerals. In the top view, it can be seen particularly clearly that each of the four workpieces 6 is assigned its own grinding tool 2 '. Since the outer diameter D2 'of the grinding tools 2' is smaller than the inner diameter D6i of the workpieces 6, the grinding tools 2 'can be inserted into the workpieces 6 and thereby grind inner surfaces of the workpieces 6. The rotation of the grinding tools 2 'and the rotation of the workpieces 6 are in Fig.
  • the workpiece carrier unit 4 can not make a complete revolving rotation about the workpiece carrier unit axis X4; instead, the workpiece carrier unit 4 makes an oscillating rotational movement (represented by a curved double arrow).
  • Fig. 3A an alternative embodiment of a workpiece carrier unit 4 is shown in a plan view. Those areas of the workpiece carrier unit 4 which have already been described above are in Fig. 3A - And in all other figures - provided with corresponding reference numerals.
  • the third embodiment of the workpiece carrier unit 4 differs in particular from the previously described embodiment that workpiece carrier 5 'with a tiltable or Verschränkbaren storage are provided. This is related to 3B and 3C detailed.
  • Fig. 3B shows the workpiece carrier unit Fig. 3A in a sectional view along the in Fig. 3A drawn section plane AA and in Fig. 3C is the workpiece carrier unit off Fig. 3A in a sectional view along the in Fig. 3A drawn cutting plane BB shown.
  • Those areas of the workpiece carrier unit 4 which have already been described above are in Fig. 3B and in Fig. 3C - As in all other figures - provided with corresponding reference numerals.
  • the workpiece carrier 5 ' has a tilting bearing 10, which will be discussed in more detail below.
  • the tilting bearing 10 allows both a pivoting movement or tilting movement of the workpiece carrier 5 'in the radial direction of the workpiece carrier unit 4 - ie along the cutting plane AA in Fig. 3A (curved double arrow in Fig. 3B ; "Inclination") and in the circumferential direction or in the tangential direction of the workpiece carrier unit 4 - ie along the section plane BB in Fig. 3A (curved double arrow in Fig. 3C ; "Entanglement").
  • Fig. 4A is the workpiece carrier 5 'from Fig. 3A shown in an enlarged view.
  • Fig. 4B shows an alternative embodiment of the workpiece carrier 5 "from Fig. 4A .
  • Those areas of the workpiece carriers 5 ', 5 "which have already been described above are in Fig. 4A and in Fig. 4B provided with corresponding reference numerals.
  • the workpiece carrier 5 ', 5 " is rotatably mounted in both embodiments relative to the workpiece carrier unit 4, including the workpiece carrier 5' from Fig. 4A as well as the workpiece carrier 5 "from Fig. 4B Rolling bearing 12, with which a rotating shaft 13 is rotatably mounted in a housing 14.
  • the Workpiece carriers 5 ', 5 are pivotally mounted in both embodiments, which becomes redundant in the case of the workpiece carrier 5' Fig. 4A reached over a tilting bearing 10, which is designed as a spherical bearing.
  • the workpiece carrier 5 ' has a fixable adjusting ring 15 which extends around the housing 14 around.
  • a radial screw 16A and an axial screw 16B is present.
  • the position of the workpiece carrier 5 ' can be determined via locking screws 17 in any desired inclination position or interlocking position.
  • the tilting bearing 10 ' functions by elastically deforming certain regions of the workpiece carrier 5 ".
  • the regions intended for the elastic deformation can be made particularly thin, for example Fig. 4B shown tilting bearing 10 'is suitable only for smaller tilt angle, for larger tilt angle is in Fig. 4A illustrated tilting bearing 10 is preferred.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
EP17173258.9A 2017-05-29 2017-05-29 Fraiseuse comprenant une unité porte-pièces Active EP3409416B1 (fr)

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EP17173258.9A EP3409416B1 (fr) 2017-05-29 2017-05-29 Fraiseuse comprenant une unité porte-pièces

Applications Claiming Priority (1)

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EP17173258.9A EP3409416B1 (fr) 2017-05-29 2017-05-29 Fraiseuse comprenant une unité porte-pièces

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112676947A (zh) * 2020-12-28 2021-04-20 王兆举 一种用于智能平面精磨机中的工件轴自动对接定位机构
CN113770823A (zh) * 2021-09-28 2021-12-10 湖南圣高机械科技有限公司 一种平面研磨机
CN114932474A (zh) * 2022-05-11 2022-08-23 上海阿格感光材料有限公司 一种基管表面涂层除边设备及方法

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GB1539499A (en) * 1976-08-14 1979-01-31 Mueller Georg Kugellager Surface grinding of workpieces
JPS59115137A (ja) * 1982-12-22 1984-07-03 Hitachi Ltd ワ−ク取付台における微少角度調整装置
US4829716A (en) * 1985-10-22 1989-05-16 Matsushita Electric Industrial Co. Ltd. Apparatus for automatically performing plural sequential spherical grinding operations on workpieces
DE19504368A1 (de) * 1995-02-10 1996-08-14 Index Werke Kg Hahn & Tessky Werkzeugmaschine
DE10106189A1 (de) * 2000-02-16 2001-11-15 Ketterer Maschb Gmbh Werkzeugmaschine
DE102007050482A1 (de) * 2007-10-19 2009-04-23 Thielenhaus Technologies Gmbh Verfahren und Vorrichtung zur Finishbearbeitung
DE102014106915A1 (de) * 2014-05-16 2015-11-19 Ffg Werke Gmbh Werkzeugmaschine
DE102016107590A1 (de) * 2015-04-28 2016-11-03 Jtekt Corporation Multitaskingschleifmaschine und Multitaskingschleifverfahren

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DE3505508C2 (de) * 1985-02-16 1993-11-18 Schaudt Maschinenbau Gmbh Werkstückwechselvorrichtung für eine Werkzeugmaschine, insbesondere Schleifmaschine
JP2000254843A (ja) * 1999-03-05 2000-09-19 Ykk Corp 自動円筒研削装置並びにそれに用いるケレ及びケレ開閉装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1539499A (en) * 1976-08-14 1979-01-31 Mueller Georg Kugellager Surface grinding of workpieces
JPS59115137A (ja) * 1982-12-22 1984-07-03 Hitachi Ltd ワ−ク取付台における微少角度調整装置
US4829716A (en) * 1985-10-22 1989-05-16 Matsushita Electric Industrial Co. Ltd. Apparatus for automatically performing plural sequential spherical grinding operations on workpieces
DE19504368A1 (de) * 1995-02-10 1996-08-14 Index Werke Kg Hahn & Tessky Werkzeugmaschine
DE10106189A1 (de) * 2000-02-16 2001-11-15 Ketterer Maschb Gmbh Werkzeugmaschine
DE102007050482A1 (de) * 2007-10-19 2009-04-23 Thielenhaus Technologies Gmbh Verfahren und Vorrichtung zur Finishbearbeitung
DE102014106915A1 (de) * 2014-05-16 2015-11-19 Ffg Werke Gmbh Werkzeugmaschine
DE102016107590A1 (de) * 2015-04-28 2016-11-03 Jtekt Corporation Multitaskingschleifmaschine und Multitaskingschleifverfahren

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112676947A (zh) * 2020-12-28 2021-04-20 王兆举 一种用于智能平面精磨机中的工件轴自动对接定位机构
CN113770823A (zh) * 2021-09-28 2021-12-10 湖南圣高机械科技有限公司 一种平面研磨机
CN114932474A (zh) * 2022-05-11 2022-08-23 上海阿格感光材料有限公司 一种基管表面涂层除边设备及方法

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