EP2262615A1 - Vorrichtung zum bearbeiten von werkstücken - Google Patents
Vorrichtung zum bearbeiten von werkstückenInfo
- Publication number
- EP2262615A1 EP2262615A1 EP09728805A EP09728805A EP2262615A1 EP 2262615 A1 EP2262615 A1 EP 2262615A1 EP 09728805 A EP09728805 A EP 09728805A EP 09728805 A EP09728805 A EP 09728805A EP 2262615 A1 EP2262615 A1 EP 2262615A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- processing
- workpiece
- processing element
- endless means
- machining
- 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
Links
- 238000003754 machining Methods 0.000 title claims abstract description 47
- 238000005452 bending Methods 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 19
- 238000012545 processing Methods 0.000 claims description 132
- 239000002184 metal Substances 0.000 abstract description 13
- 229910052751 metal Inorganic materials 0.000 abstract description 13
- 239000000872 buffer Substances 0.000 description 16
- 229910000831 Steel Inorganic materials 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 6
- 239000002893 slag Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 239000011324 bead Substances 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 241000110717 Sclerolaena bicornis Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011195 cermet Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
- B24D13/02—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery
- B24D13/10—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery comprising assemblies of brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
Definitions
- the invention relates to a device according to claim 1.
- Devices for the mechanical processing of, in particular, metallic materials after a process by which the exterior of the workpiece must be subjected to a post-processing are known. This applies in particular to workpieces after rough machining by cutting, cutting or other methods, for example thermal methods.
- the post-processing serves, for example, for the removal of undesired material overhangs, e.g. Burrs, slag residues or firmly or loosely bound adhesions on the workpiece. Also soiling such. Oil or grease residues or scale or oxide layers can also be largely removed. Since particularly solid material areas to be removed, e.g. occur by a welding process encrustations or slag in the range of edges, edges, seams, depressions or undercuts on the workpiece, the complete, reliable and fast removal of these material areas is difficult and usually very time or costly possible.
- the object of the present invention is to improve devices for reworking workpieces with regard to technical and economic aspects.
- the invention relates to a device for processing workpieces, in particular of strip-shaped or plate-shaped metallic workpieces, with circumferential endless means with which a workpiece movable past the workpiece processing element for knocking off material areas on the workpiece is added.
- the essence of the invention lies in the fact that the processing element is arranged on the endless means via a bending section, so that the processing element can deflect laterally against the workpiece during impact.
- the bent portion can be made comparatively simple or robust in many ways.
- the bending behavior of the machining element that can be realized by the bending section can be adapted to desired machining parameters. Due to the adaptable yield behavior or the elastically stiff behavior of the bending section, a deflection or deflection behavior of the processing element when striking against the workpiece and thus the applicable energy for Abzziing or tearing of the material areas are influenced by the processing element.
- the mass, the material, the shape and / or size of the machining element or of the deflectable part of the machining element can play a decisive role for the machining action by the machining device.
- the kinetic energy of the processing element when striking against the workpiece or the relative speed between the workpiece and the processing element, and thus also dependent on the direction and rotational speed of the endless means, can significantly affect the processing result.
- the circulating endless means can rotate in particular with a drive unit, for example a motor drive.
- a drive unit for example a motor drive.
- the direction of rotation is reversible or the rotational speed adjustable.
- a higher-level arithmetic unit for controlling the processing device or the drive unit is present.
- a fully or partially automated machining of workpieces with the device according to the invention can be made possible.
- a device for workpiece machining is proposed in particular, in which the workpiece to be machined driven and / or manually relative to a processing zone in which the machining element can strike the workpiece, is movable.
- more than one processing element will be arranged on an endless means, in particular at regular intervals from one another.
- the processing elements can all be the same or different. If several endless means are provided in succession, e.g. With respect to a movement direction of the workpiece during machining, first processing elements may be provided on a first endless means and different processing elements may be provided on a further endless means relative to the first processing elements.
- a concurrent processing can be realized, e.g. with a roughing step with the processing elements on the first endless means and a Fein L. Finishing step with the processing elements at the other with respect to the direction of movement of the workpiece behind endless means.
- the processing element comprises a rigid front processing section for abutment against the workpiece.
- the front processing section is simply attached, for example, without tools or exchangeable by hand, for example screwed to an external thread section.
- the front machining portion of the machining element which comes into contact with it for machining the workpiece, can be exchanged for a desired machining target.
- the front processing section may have advantageous material properties with regard to wear, wear or damage.
- comparatively hard or tough materials in particular metallic, ceramic and / or mineral materials or plastics come into question.
- a Shore hardness of the front processing section in the range of about 50 to 70, in particular of about 60 has been found to be particularly advantageous.
- the front processing section may comprise or be constructed entirely of a hard material portion. Also, a functional coating of the front processing section with particular wear-reducing properties can be advantageously used.
- the front processing section may in particular consist of hardened metal or steel. Also suitable are materials such as carbide-based metals or cermet, CBN or PKD for the front processing section as a whole or for a part thereof.
- the shape, dimension or mass of the front processing section can be tailored to desired processing targets.
- the mass of a cemented carbide pin received on a bent portion of rubber material may be e.g. advantageously in the range of 10 to 20 grams, in particular about 15 grams.
- the front processing section may have a planar, arched, edged and / or profiled shape.
- the front machining section preferably has a rotationally symmetrical shape, for example with a cylindrical, conical or profiled basic shape.
- the bending portion is configured such that the processing element can escape in any direction radially to the longitudinal axis of the processing element.
- the processing element can escape in any direction radially to the longitudinal axis of the processing element.
- the machining element can also be displaceably moved back and forth along its longitudinal axis, for example with a sliding fit.
- This longitudinal compliance of the machining element can also be provided by the bending section.
- the processing element can also be accommodated, for example, in a sleeve, if necessary suspended in a movable manner and secured against falling out. The sleeve can be accommodated so that it can dodge in the radial direction.
- the bending section for the automatic return of the front processing section is designed to be elastic in a starting position.
- the front processing section can quickly return to its starting position after striking the workpiece portion and the lateral dodge. This makes it possible that for processing a next section on the workpiece, the front processing section is ready again in its starting position or can still get into abutting contact with sections of the workpiece during the return movement.
- the processing element can also process a multiplicity of regions, possibly oriented differently in space or in close proximity to one another, on the workpiece rapidly one after the other.
- high throughputs or efficiencies can be realized with the device.
- the bending section comprises an elastomeric element by means of which the front machining section can be deflected.
- a simple, robust and inexpensive bending section can be provided.
- the bending portion comprises a spring.
- a standard component available on the market in a variety of configurations can be used for the bending portion.
- Suitable springs may be, for example, helical or coil springs, sheet, plate or diaphragm springs of metal or other material.
- the processing element is designed as an elongated impactor, which is arranged over its length freely projecting to the endless means.
- the impactor may be designed comparatively slim, for example, as a finger or needle-like element.
- On the length of the impactor protruding at the endless means inter alia, it can be influenced how far the impactor from a top of the workpiece from striking a side of the workpiece in edge areas or depressions on the workpiece and can come into contact there.
- the impactor is oriented in its initial position on the endless means in particular at least almost perpendicular to the support surface for the workpiece. But it is also conceivable any angular employment of a processing element relative to the workpiece support surface in the processing zone of the device.
- the front processing section of the processing element than in essential cylindrical body is designed, which is flattened frontally.
- the front lying or frontal flattening which is positioned in the starting position closest to the workpiece to be machined, for example, can be completely flat, slightly curved in a spherical shape or curved almost hemispherically outward.
- the transition between the outside of the cylindrical body and the frontal flattening may be provided with or without a circumferential chamfer.
- the direction of movement of the machining element realized with the endless means in a machining zone for machining the workpiece is oblique or transverse to a movement direction of the workpiece when approaching and / or moving past the device.
- the processing element can be continuously circulated continuously over the endless means.
- the workpiece can be conveyed continuously, e.g. on a conveyor belt or a roller table, possibly with driven conveyor rollers, to be guided past the endless means with the processing elements and processed.
- a band-, rope- or belt-like element is provided as a circulating endless means. So a particularly simple and reliable system can be realized.
- At least two circumferential endless means are provided, each with at least one processing element.
- the directions of rotation of the endless means can be reversed or, in the case of two continuous endless means, two different directions of rotation can be realized in one machining operation, in each case a direction of rotation through an endless means.
- two successive endless means are only in the direction of passage of the workpiece little spaced apart and opposite circulating.
- each with at least one processing element an endless means above the workpiece and another endless means below the workpiece is moved past, in particular in mutually opposite direction of rotation, even by only one side abutting processing elements an undesirable drifting of the workpiece to counteract its forward movement.
- all the areas above and below the workpiece can be achieved by the processing elements.
- two endless media are arranged close to one another or one behind the other above and two further endless media are positioned close to one another or behind one another below the passage area or a processing zone for the workpiece to be machined.
- the processing device can be used as a "stand-alone" solution, ie as a single machine, or else combined, e.g. as a front-end unit in front of a rounding, grinding, polishing or brushing machine for comparatively finer machining of the workpiece.
- the previous machines can be designed less expensive and / or longer maturities betweenessor L. Maintenance work can be made or provide better processing results, as already done in particular a rough pre-processing of the workpiece by the device according to the invention.
- an arrangement is e.g. in a machine conceivable in which first the proposed tee device, then a grinding device and finally a
- Rounding device is used for machining the workpiece.
- existing rounding, grinding, polishing or brushing these can be designed smaller thanks to the invention or possibly can be integrated with the space thus gained a device according to the invention, so that an increased machining quality is achieved without the basic construction or The size of the previous machines must be increased.
- FIG. 1 shows a partial view from the front of a highly schematized processing device according to the invention
- FIG. 2 a sectional detailed view in FIG.
- FIG. 5a shows a detail of a double V-belt with processing elements in a perspective view with a processing element in exploded view
- FIG. 5b shows the double V-belt according to FIG. 5a in side view
- FIG. 5c shows a sectional view through the double V-belt according to line B-B in FIG. 5b, FIG.
- FIGS. 6a to 6c views corresponding to FIGS. 5a to 5c of an alternative endless belt, whereby FIG. 6c corresponds to a sectional view through the endless belt according to line C-C in FIG. 6b,
- FIG. 7 a in perspective, obliquely from above, a highly schematic view of a device according to the invention for machining a workpiece, omitting components of the processing device;
- FIG. 7b shows the arrangement shown in FIG. 7a from the side, Figures 8a and 8b: a section of another
- V-belt with processing elements in perspective view and in section and
- FIG. 9 an alternative invention
- FIG. 1 shows in highly schematic form a slag remover 1 with a partially shown roller table 2, on the upper side of which is rotatably mounted rollers, of which a roller 5 is shown, a workpiece 3 can be transported perpendicular to the plane through a processing zone 4 of the slag remover 1.
- the processing zone 4 is bounded above by a circulatory belt 7 which can be reversed in the running direction and which is guided around two rotatably mounted disks 8 and 9 and of which e.g. a motor is driven.
- the movement direction for the workpiece 3 realized with the roller table 2 is transverse to the running direction of the circulating belt 7.
- a roller, a roller, a chain, a rope or a planetary be provided.
- rotating endless means may also be provided a different arrangement for relative movement of the processing elements, for example with a direction of execution of the Workpiece transversely or obliquely aligned reciprocating receptacle on which the processing elements are mounted.
- This can be realized, for example, according to the principle of the jigsaw principle, or with a slide which can be moved back and forth, which, if appropriate, can simultaneously carry out an up and down movement or a stroke, for example by means of an eccentric bearing.
- FIG. 2 shows by way of example the machining element 10 which can be screwed onto the revolving belt 7.
- the circulating belt 7 comprises a plate 11 embedded in the circulating belt 7 with a threaded pin perpendicularly projecting thereon.
- a rubber buffer 13 can be detachably screwed onto the threaded pin 12.
- a hard metal pin 16 can also be fastened screwed on a vulcanized plate 14 with threaded pin 15.
- a threaded plate 17 is vulcanized on the underside of the rubber buffer 13.
- the metal parts are cast or pressed into the rubber sections.
- Figures 3a to 3c show another machining element 18 comprising a conically shaped hard metal pin 19 and a rubber buffer 20 in which a threaded plate 21 with an internally threaded bore, e.g. with a M6 internal thread, and the hard metal pin 19 are vulcanized.
- a circumferential chamfer 19a is formed with a chamfer angle ⁇ l of 30 degrees, wherein the chamfer angle can also be in the range between 20 to 40 degrees.
- the front side of the hard metal pin 19 is curved outwardly or spherically with configured a ball radius of 10 mm, with other radii in particular between 5 mm and 15 mm may be advantageous.
- this has a circumferential bead ring 19b.
- Typical dimensions of the processing element 19 are shown with the aid of FIG. 3b, in which the length or total height hi is 40 mm and a length or height h 2 of the rubber buffer 20 with the threaded plate 21 is half the total height hi or 20 mm.
- the diameter di of the threaded plate 21 and the rubber buffer 20 is for example 20 mm here.
- the machining element 22 according to FIGS. 4 a to 4 c has a cylindrical hard metal pin 23 with a curved end face formed in a diameter of 10 mm, which merges integrally into a circular disk section 23 a, which is glued or vulcanized on top of a rubber buffer 24.
- a threaded plate 25 with an internal threaded hole made of steel is mounted accordingly, so that the processing element 22 can be screwed onto a corresponding grub screw, in particular a circulating belt.
- Figures 5a to 5c show a continuous endless means in the form of a double V-belt 26, for example made of fabric-reinforced elastomeric material, with round holes 28, via which 31 processing elements 27 are attached by fastening screws.
- the processing elements 27 protrude on an outer side 26a of the double V-belt 26 perpendicular to the longitudinal extension of the double V-belt 26.
- the same and on average (Figure 5c) shown simplified processing elements 27 are, for example, as the processing element 10 configured in accordance with Figure 2.
- FIGS. 6a to 6c an alternative embodiment of an endless means in the form of a force band 32 with processing elements 35, the attachment of which via round holes 33 and fastening screws 34 is realized.
- the processing element 35 is formed here from a cast in a rubber element hard metal pin.
- the power belt 32 is designed for a comparatively high torque transmission between a drive element and the power belt 32 as a belt with underside three V-belt sections.
- FIG. 7a shows a highly schematized processing device according to the invention, omitting components of the processing device at the moment shortly before a workpiece 36 to be machined reaches a processing zone 38.
- FIG. 7b shows the arrangement according to FIG. 7a from the side.
- the band-shaped metallic workpiece 36 with front and rear edge protruding Schlackeresten 36a is transported in the direction of the workpiece 36 by the processing device according to arrow P by means of a feed conveyor 37 to the processing zone 38 of the processing device.
- the processing zone 38 are driven by above and below arranged driven V-belts 41, 42, 43 and 44 on attached thereto processing elements (not shown), the Schlackereste 36 a removed or beaten.
- each of the V-belts 41 to 44 is guided around two rollers 45 spaced approximately over the width of the feed conveyor belt 37 and driven by a motor.
- the upper V-belts 41 and 42 run in the opposite direction of rotation. Accordingly, the V-belts 43 and 44 also run in the opposite direction of rotation for the corresponding processing of the underside of the workpiece 36 from both sides. For processing the narrow areas between the top and bottom of the workpiece 36, the processing elements of the upper and lower V-belts 41 to 44 equally strike against the narrow sides of the workpiece 36.
- holders or guides can be provided. Additionally or alternatively, the directions of rotation of the above and below opposed V-belts 41 and 43 or 42 and 44 are set opposite in the rule, so that cancel the forces applied by the processing elements on the workpiece 36 at least almost completely.
- the rollers 45 can be adjusted in height.
- the machining intensity can be influenced or an adjustment to different workpiece dimensions can be made.
- the simple V-belt 46 shown in FIGS. 8a and 8b can be used particularly advantageously and has a height H of e.g. 15 to 25 mm, in particular 20 mm and on the upper side, where machining elements 47 project, a width B of e.g. 20 to 40 mm, in particular 32 mm.
- the processing elements 47 are screwed to the V-belt 46, which include concave constricted rubber bumper 47 a with steel pins 47 b, which are chamfered at the top.
- the processing elements 47 are equally spaced from each other and single row. Basically, even across the width B offset from each other positioned or multi-row arrangements of the processing elements are conceivable.
- FIG. 9 shows an alternative advantageous machining element 50 with a steel pin 51 and a compact rubber spring element 52.
- the rubber spring element 52 shown in section combines spring, rotary bearing and vibration damper functions and has a hollow profile 53 with a square profile 54 housed therein, both preferably made of steel, wherein the square profile 54 is clamped by four cylindrical rubber elements 55 without contact to the hollow section 53 in this.
- the square profile 54 and thus a fixed thereto U-shaped bracket 56 with the attached steel pin 51 can move relative to the hollow section 53 and recover the steel pin resettable something.
- the side with the steel pin 51 opposite the mounting plate 57 is firmly fixed to the hollow section 53, the example is provided with an internally threaded bore 58, via which the machining element 50 can be attached to a circumferential endless means such as a V-belt with a mounting screw.
- the machining element 50 can be secured against rotation relative to the circulating endless means via a hole 59, which is spaced apart from the internal threaded bore 58, in a tab section 60 of the attachment plate 57, for example via a further screw.
- the steel pin 51 may be screwed, soldered or otherwise fixed to the top of the bracket 56, for example.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008016944A DE102008016944A1 (de) | 2008-04-01 | 2008-04-01 | Vorrichtung zum Bearbeiten von Werkstücken |
PCT/EP2009/002341 WO2009121562A1 (de) | 2008-04-01 | 2009-03-31 | Vorrichtung zum bearbeiten von werkstücken |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2262615A1 true EP2262615A1 (de) | 2010-12-22 |
EP2262615B1 EP2262615B1 (de) | 2013-09-04 |
Family
ID=41037759
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09728805.4A Active EP2262615B1 (de) | 2008-04-01 | 2009-03-31 | Vorrichtung zum bearbeiten von werkstücken |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2262615B1 (de) |
DE (1) | DE102008016944A1 (de) |
WO (1) | WO2009121562A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015110115A1 (de) * | 2015-06-24 | 2016-12-29 | Georg Weber | Vorrichtung zum Bearbeiten eines Werkstücks |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3839220C2 (de) * | 1988-11-19 | 1998-07-02 | Festo Ag & Co | Rotationswerkzeug für eine Bearbeitungsmaschine zum Entfernen von Material, z. B. Rost, Farbe usw., von einer Oberfläche |
JP3098171B2 (ja) * | 1995-05-18 | 2000-10-16 | 日立造船株式会社 | 付着物除去具 |
DE20320821U1 (de) * | 2003-05-07 | 2005-03-17 | Lissmac Maschb Und Diamantwerk | Vorrichtung zum Bearbeiten von Werkstücken |
DE20312681U1 (de) * | 2003-08-16 | 2003-10-30 | Paul Ernst Maschinenfabrik GmbH, 74927 Eschelbronn | Vorrichtung zum Entfernen der Oxydschicht bei metallischen Werkstücken |
US20080189923A1 (en) * | 2005-07-18 | 2008-08-14 | Hh Patent A/S | Method, a Wire Roller and Use Thereof for Surface Treatment of an Object |
DE202005011640U1 (de) * | 2005-07-25 | 2005-10-13 | Lissmac Maschinenbau Und Diamantwerkzeuge Gmbh | Vorrichtung zum Bearbeiten eines metallischen Werkstücks |
-
2008
- 2008-04-01 DE DE102008016944A patent/DE102008016944A1/de not_active Withdrawn
-
2009
- 2009-03-31 WO PCT/EP2009/002341 patent/WO2009121562A1/de active Application Filing
- 2009-03-31 EP EP09728805.4A patent/EP2262615B1/de active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2009121562A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102008016944A1 (de) | 2009-10-08 |
WO2009121562A1 (de) | 2009-10-08 |
EP2262615B1 (de) | 2013-09-04 |
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