EP2262615B1 - Device for machining workpieces - Google Patents
Device for machining workpieces Download PDFInfo
- Publication number
- EP2262615B1 EP2262615B1 EP09728805.4A EP09728805A EP2262615B1 EP 2262615 B1 EP2262615 B1 EP 2262615B1 EP 09728805 A EP09728805 A EP 09728805A EP 2262615 B1 EP2262615 B1 EP 2262615B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- machining
- workpiece
- processing
- endless means
- section
- 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.)
- Active
Links
- 238000003754 machining Methods 0.000 title claims description 54
- 229920001971 elastomer Polymers 0.000 claims description 28
- 238000005452 bending Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims description 16
- 239000000806 elastomer Substances 0.000 claims 1
- 238000012545 processing Methods 0.000 description 117
- 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
- 238000005520 cutting process Methods 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
- 238000004519 manufacturing process 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
- 230000008439 repair process Effects 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
Images
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
- Die.Erfindung relates to a device according to the preamble of 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.
- a generic device is for example from the JP-A-08 309 296 known.
- 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 processing element is arranged on the endless means via a bending section, so that the processing element can deflect laterally when striking against the workpiece.
- 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 rough processing step with the processing elements on the first endless means and a finishing step with the processing elements on 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.
- 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 belt, 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 each provided 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 combined, for example 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 made less complicated and / or longer run times between repair or maintenance work can be enabled or provide better processing results, as already done in particular a rough pre-machining of the workpiece by the device according to the invention.
- an arrangement is conceivable, for example in a machine, in which first the proposed knock-off device, then a grinding device and finally a rounding device for machining the workpiece is used.
- FIG. 1 shows highly schematically a slag remover 1 with a partially illustrated roller table 2, on the upper side via rotatably mounted rollers, of which a roller 5 is shown, a workpiece 3 perpendicular to the plane through a processing zone 4 of the slag remover 1 is transportable.
- 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.
- FIG. 1 not all of the processing elements 10 are provided with a reference numeral.
- a rope or a belt may be provided.
- FIG. 2 shows by way of example the processing element 10, which is 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.
- FIGS. 3a to 3c show a further processing element 18, which has a conically shaped hard metal pin 19 and a rubber buffer 20 in which a threaded plate 21 with an internally threaded bore, for example with an M6 internal thread, and the hard metal pin 19 are vulcanized.
- a circumferential chamfer 19a is formed with a chamfer angle ⁇ 1 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 with the aid of FIG. 3b shown, in which the length or the total height h 1 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 h 1 or 20 mm.
- the diameter d 1 of the threaded plate 21 and the rubber buffer 20 is here, for example, 20 mm.
- the processing element 22 according to FIGS. 4a to 4c has a cylindrical carbide pin 23 with a curved end face formed in the diameter of 10 mm, which integrally merges into a circular disk section 23a which is adhesively bonded or vulcanised 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.
- FIGS. 5a to 5c show an encircling endless means in the form of a double V-belt 26, for example of fabric-reinforced elastomeric material, with round holes 28, via which 31 fixing elements 27 are attached by means of 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 ( FIG. 5c ) shown simplified processing elements 27 are, for example, as the processing element 10 according to FIG. 2 designed.
- FIGS. 6a to 6c is according to the FIGS. 5a to 5c an alternative embodiment of an endless means in the form of a kraftband 32 shown with processing elements 35, the attachment of which is realized via round holes 33 and fastening screws 34.
- 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 highly schematized a processing device according to the invention omitting components of the processing device at the moment just before a workpiece to be machined 36 reaches a processing zone 38.
- FIG. 7b shows the arrangement according to Figure 7a of the page.
- 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.
- FIGS. 8a and 8b shown simple V-belt 46 is particularly advantageously used and has a height H of eg 15 to 25 mm, in particular 20 mm and the upper side, where processing elements 47 survive, a width B of eg 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 an alternative advantageous processing element 50 with a steel pin 51 and a compact rubber spring element 52 is shown.
- 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.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Description
Die.Erfindung betrifft eine Vorrichtung gemäß Oberbegriff des Anspruchs 1.Die.Erfindung relates to a device according to the preamble of claim 1.
Vorrichtungen zur mechanischen Bearbeitung von insbesondere metallischen Werkstoffen nach einem Vorgang, durch welchen das Äußere des Werkstücks einer Nachbearbeitung unterzogen werden muss, sind bekannt. Dies gilt insbesondere für Werkstücke nach einer Grobbearbeitung durch Schneid-, Trenn- oder andere Verfahren, zum Beispiel thermische Verfahren.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.
Die Nachbearbeitung dient beispielsweise der Entfernung von unerwünschten Materialüberständen wie z.B. Graten, Schlackenresten bzw. fest oder lose gebundenen Anhaftungen am Werkstück. Auch Verschmutzungen wie z.B. Öl- oder Fettreste oder Zunder bzw. Oxidschichten können dabei ebenfalls großteils entfernt werden. Da zu entfernende insbesondere feste Materialbereiche, z.B. durch ein Schweißverfahren entstandene Verkrustungen bzw. Schlacke im Bereich von Kanten, Rändern, Nähten, Vertiefungen bzw. Hinterschneidungen am Werkstück auftreten, ist die vollständige, zuverlässige und schnelle Entfernung dieser Materialbereiche nur schwierig und meist sehr zeit- bzw. kostenintensiv möglich.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.
Häufig muss manuell nachgearbeitet werden oder es müssen teure, unpraktikable bzw. durch Abnutzung wartungsintensive Maschinen zum Entfernen von Materialbereichen am Werkstück eingesetzt werden.Often you have to do it manually or you have to expensive, impractical or wear-intensive machines are used to remove material areas on the workpiece.
Eine gattungsgemäße vorrichtung ist z.B aus der
Aufgabe der vorliegenden Erfindung ist es, Vorrichtungen zum Nachbearbeiten von Werkstücken im Hinblick auf technische und wirtschaftliche Gesichtspunkte zu verbessern.The object of the present invention is to improve devices for reworking workpieces with regard to technical and economic aspects.
Dies wird durch den Anspruch 1 gelöst. In den abhängigen Ansprüchen sind vorteilhafte Weiterbildungen der Erfindung aufgezeigt.This is solved by claim 1. In the dependent claims advantageous developments of the invention are shown.
Die Erfindung geht aus von einer Vorrichtung zum Bearbeiten von Werkstücken, insbesondere von band- oder plattenförmigen metallischen Werkstücken, mit umlaufenden Endlosmitteln, mit denen ein am Werkstück vorbeibewegbares Bearbeitungselement zum Abschlagen von Materialbereichen am Werkstück aufgenommen ist.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.
Das Bearbeitungselement ist über einen Verbiegeabschnitt an den Endlosmitteln angeordnet, so dass das Bearbeitungselement beim Anschlagen gegen das Werkstück seitlich ausweichen kann. So kann ein vergleichsweise einfacher Aufbau bzw. eine kostengünstige Anordnung zum Nachbearbeiten von Werkstücken realisiert werden. Der Verbiegeabschnitt kann auf vielfältige Weise vergleichsweise einfach bzw. robust ausgestaltet werden. Außerdem kann das durch den Verbiegeabschnitt realisierbare Verbiegeverhalten des Bearbeitungselementes an gewünschte Bearbeitungsparameter angepasst werden. Durch das anpassbare Nachgebeverhalten bzw. das elastisch steife Verhalten des Verbiegabschnitts kann ein Ausweich- bzw. Auslenkverhalten des Bearbeitungselements beim Anschlagen gegen das Werkstück und damit die aufbringbare Energie zum Abschlagen bzw. Abreißen der Materialbereiche durch das Bearbeitungselement beeinflusst werden.The processing element is arranged on the endless means via a bending section, so that the processing element can deflect laterally when striking against the workpiece. Thus, a comparatively simple structure or a cost-effective arrangement for reworking workpieces can be realized. The bent portion can be made comparatively simple or robust in many ways. In addition, 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 Abschlaging or tearing of the material areas are influenced by the processing element.
Außerdem kann die Masse, das Material, die Form und/oder Größe des Bearbeitungselements bzw. des auslenkbaren Teils des Bearbeitungselements eine entscheidende Rolle für die Bearbeitungswirkung durch die Bearbeitungsvorrichtung spielen. Auch die kinetische Energie des Bearbeitungselements beim Anschlagen gegen das Werkstück bzw. die Relativgeschwindigkeit zwischen Werkstück und Bearbeitungselement, also auch abhängig von Richtung und Umlaufgeschwindigkeit der Endlosmittel, kann das Bearbeitungsergebnis wesentlich beeinflussen.In addition, 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.
Mit dem Verbiegeabschnitt kann insbesondere auf vergleichsweise aufwändige, beschädigungs- bzw. reparaturanfällige Vorrichtungen zur beweglichen Lagerung des Bearbeitungselements verzichtet werden.With the bending section can be dispensed with in particular comparatively expensive, damage or repair-prone devices for movable mounting of the processing element.
Die umlaufenden Endlosmittel können insbesondere mit einer Antriebseinheit, beispielsweise einem Motorantrieb, angetrieben umlaufen. Bevorzugt ist die Umlaufrichtung umschaltbar bzw. die Umlaufgeschwindigkeit einstellbar. Gegebenenfalls ist eine übergeordnete Recheneinheit zur Kontrolle der Bearbeitungsvorrichtung bzw. der Antriebseinheit vorhanden. Insbesondere kann eine voll- oder teilautomatisierte Bearbeitung von Werkstücken mit der erfindungsgemäßen Vorrichtung ermöglicht werden. Außerdem wird insbesondere eine Vorrichtungen zur Werkstückbearbeitung vorgeschlagen, bei welcher das zu bearbeitende Werkstück angetrieben und/oder manuell relativ zu einer Bearbeitungszone, in welcher das Bearbeitungselement am Werkstück anschlagen kann, bewegbar ist.The circulating endless means can rotate in particular with a drive unit, for example a motor drive. Preferably, the direction of rotation is reversible or the rotational speed adjustable. Optionally, a higher-level arithmetic unit for controlling the processing device or the drive unit is present. In particular, a fully or partially automated machining of workpieces with the device according to the invention can be made possible. In addition, 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.
Mit dem Verbiegeabschnitt kann die Strecke, wie weit das Bearbeitungselement seitlich ausweichen kann, eingestellt bzw. vorgegeben werden, ggf. mit Hilfe eines Anschlages zur Begrenzung eines maximal möglichen Ausweichens des Bearbeitungselements.With the bending section, the distance, as far as the processing element can move laterally set or be given, possibly with the help of a stop to limit a maximum possible evasion of the processing element.
In der Regel wird an einem Endlosmittel mehr als ein Bearbeitungselement angeordnet sein, insbesondere in regelmäßigen Abständen zueinander. Die Bearbeitungselemente können alle gleichartig oder unterschiedlich ausgestaltet sein. Werden mehrere Endlosmittel hintereinander vorgesehen, z.B. in Bezug zu einer Bewegungsrichtung des Werkstücks beim Bearbeiten, können an einem ersten Endlosmittel erste Bearbeitungselemente vorgesehen und an einem weiteren Endlosmittel zu den ersten Bearbeitungselementen unterschiedliche Bearbeitungselemente vorhanden sein. So kann eine abgestimmte bzw. mehrstufige Bearbeitung verwirklicht werden, z.B. mit einem Grobbearbeitungsschritt mit den Bearbeitungselementen am ersten Endlosmittel und einem Fein- bzw. Endbearbeitungsschritt mit den Bearbeitungselemente am weiteren in Bezug zu der Bewegungsrichtung des Werkstücks dahinter liegenden Endlosmittel.As a rule, 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. Thus, a concurrent processing can be realized, e.g. with a rough processing step with the processing elements on the first endless means and a finishing step with the processing elements on the other with respect to the direction of movement of the workpiece behind endless means.
Erfindungsgemäß umfasst das Bearbeitungselement einen in sich steifen vorderen Bearbeitungsabschnitt zum Anschlagen gegen das werkstück. Bevorzugt ist der vordere Bearbeitungsabschnitt einfach zum Beispiel werkzeuglos bzw. von Hand austauschbar befestigt, z.B. an einem Außengewindeabschnitt aufschraubbar. So kann der vordere Bearbeitungsabschnitt des Bearbeitungselements, der zum Bearbeiten des Werkstück mit diesem in Kontakt kommt, auf ein gewünschtes Bearbeitungsziel abgestimmt ausgetauscht werden. Insbesondere kann der vordere Bearbeitungsabschnitt im Hinblick auf Verschleiß, Abnutzung bzw. Beschädigung vorteilhafte Materialeigenschaften aufweisen. Hierfür kommen insbesondere vergleichsweise harte bzw. zähe Werkstoffe, insbesondere metallische, keramische und/oder mineralische Werkstoffe oder auch Kunststoffe in Frage. Es sind auch kombinierte Materialien bzw. Verbundstoffe für den vorderen Bearbeitungsabschnitt denkbar. Eine Shore-Härte des vorderen Bearbeitungsabschnitts im Bereich von ca. 50 bis 70, insbesondere von ca. 60 hat sich als besonders vorteilhaft herausgestellt.According to the invention, the processing element comprises a rigid front processing section for abutment against the workpiece. Preferably, the front processing section is simply attached, for example, without tools or exchangeable by hand, for example screwed to an external thread section. Thus, 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. In particular, the front processing section may have advantageous material properties with regard to wear, wear or damage. For this purpose, in particular comparatively hard or tough materials, in particular metallic, ceramic and / or mineral materials or plastics come into question. There are too Combined materials or composite materials for the front processing section conceivable. 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.
Der vordere Bearbeitungsabschnitt kann einen Hartstoff-Anteil umfassen oder vollständig aus diesem aufgebaut sein. Auch eine Funktionsbeschichtung des vorderen Bearbeitungsabschnitts mit insbesondere verschleißmindernden Eigenschaften kann vorteilhaft eingesetzt werden. Der vordere Bearbeitungsabschnitt kann insbesondere aus gehärtetem Metall bzw. Stahl bestehen. Es sind auch Materialien wie zum Beispiel Metalle auf Karbidbasis bzw. Cermet, CBN oder PKD für den vorderen Bearbeitungsabschnitt als Ganzes oder für einen Teil davon geeignet.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.
Auch die Form, Abmessung bzw. Masse des vorderen Bearbeitungsabschnitts lässt sich auf gewünschte Bearbeitungsziele gezielt abstimmen. Die Masse eines Hartmetallbolzens, der an einem Verbiegeabschnitt aus Gummimaterial aufgenommen ist, kann z.B. vorteilhaft im Bereich von 10 bis 20 Gramm insbesondere ca. 15 Gramm liegen. Für ein Abbrechen, Abklopfen bzw. Abschlagen der Materialbereiche kann der vordere Bearbeitungsabschnitt eine ebene, gewölbte, kantenbehaftete und/oder profilierte Form aufweisen. Bevorzugt weist der vordere Bearbeitungsabschnitt eine rotationssymmetrische Form auf, zum Beispiel mit zylindrischer, konischer oder profilierter Grundform.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. For breaking off, tapping off or knocking off the material regions, 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.
Bevorzugt ist der Verbiegeabschnitt derart ausgestaltet, dass das Bearbeitungselement in eine beliebige Richtung radial zur Längsachse des Bearbeitungselements ausweichen kann. Damit kann unabhängig von der Orientierung von Abschnitten, gegen welche das Bearbeitungselement anschlägt, das Bearbeitungselement ausweichen, um ein ungewolltes Beschädigen des Werkstücks bzw. des Bearbeitungselements zu vermeiden. Dabei kommt es insbesondere auf ein seitliches bzw. laterales Ausweichen in Bezug zur Längserstreckung des Bearbeitungselements an. Grundsätzlich kann das Bearbeitungselement auch entlang seiner Längsachse verschieblich hin- und herbewegbar zum Beispiel mit einem Schiebesitz gelagert sein. Diese Längsnachgiebigkeit des Bearbeitungselements kann auch durch den Verbiegeabschnitt bereitgestellt werden. Das Bearbeitungselement kann aber auch z.B. in einer Hülse ggf. gefedert beweglich aufgenommen und gegen ein Herausfallen gesichert sein. Die Hülse kann so aufgenommen sein, dass diese in radialer Richtung ausweichen kann.Preferably, the bending portion is configured such that the processing element can escape in any direction radially to the longitudinal axis of the processing element. Thus, regardless of the orientation of sections against which abuts the processing element, avoid the processing element to an unwanted Damage to the workpiece or the processing element to avoid. In particular, lateral or lateral deflection in relation to the longitudinal extension of the processing element is important. In principle, 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. However, 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.
Es wird weiter vorgeschlagen, dass der Verbiegeabschnitt zum selbsttätigen Rückstellen des vorderen Bearbeitungsabschnitts in eine Ausgangslage elastisch ausgestaltet ist. So kann der vordere Bearbeitungsabschnitt nach dem Anschlagen am Werkstückabschnitt und dem seitlichen Ausweichen schnell wieder in seine Ausgangsstellung zurückkehren. Damit wird es ermöglicht, dass zur Bearbeitung eines nächsten Abschnitts am Werkstück der vordere Bearbeitungsabschnitt wieder in seiner Ausgangslage bereit steht bzw. noch während der Rückstellbewegung erneut mit Abschnitten des Werkstücks in Anschlagkontakt gelangen kann. Damit kann das Bearbeitungselement auch eine Vielzahl von ggf. unterschiedlich im Raum orientierten bzw. dicht beieinander liegenden Bereichen am Werkstück schnell nacheinander bearbeiten. So können hohe Durchsätze bzw. Wirkungsgrade mit der Vorrichtung realisiert werden. Insbesondere kann bei der Verwendung von mehreren derartigen Bearbeitungselementen an dem Endlosmittel ein kontinuierlicher Bearbeitungsprozess mit der erfindungsgemäßen Vorrichtung ermöglicht werden. Insbesondere kann mit einem einzigen Durchgang des Werkstücks durch die Bearbeitungsvorrichtung das Werkstück vollständig bis zum gewünschten Endbearbeitungsergebnis nachgearbeitet werden.It is further proposed that the bending section for the automatic return of the front processing section is designed to be elastic in a starting position. Thus, 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. In this way, 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. Thus, high throughputs or efficiencies can be realized with the device. In particular, with the use of a plurality of such processing elements on the endless means, a continuous processing process with the device according to the invention can be made possible. In particular, with a single pass of the workpiece through the machining device, the workpiece may be completely reworked to the desired finishing result become.
Es ist überdies von Vorteil, dass der Verbiegeabschnitt ein Elastomerelement umfasst, mittels dem der vordere Bearbeitungsabschnitt auslenkbar ist. Mit einem z.B. als Gummielement bzw. einem gummielastischen Element ausgestalteten Elastomerelement kann ein einfacher, robuster und preisgünstiger Verbiegeabschnitt bereitgestellt werden.It is also advantageous that the bending section comprises an elastomeric element by means of which the front machining section can be deflected. With a e.g. As a rubber element or a rubber-elastic element designed elastomeric element, a simple, robust and inexpensive bending section can be provided.
Es ist außerdem bevorzugt, dass der Verbiegeabschnitt eine Feder umfasst. So kann ein standardisiert auf dem Markt in einer Vielzahl von Ausgestaltungen verfügbare Bauteil für den Verbiegeabschnitt verwendet werden. Geeignete Federn können zum Beispiel Schrauben- oder Spiralfedern, Blatt-, Teller- oder Membranfedern aus Metall oder einem anderen Material sein.It is also preferred that the bending portion comprises a spring. Thus, a component available on the market in a variety of configurations in a standardized manner can be used for the bending section. Suitable springs may be, for example, helical or coil springs, sheet, plate or diaphragm springs of metal or other material.
Es ist außerdem vorteilhaft, dass das Bearbeitungselement als länglicher Schlagkörper ausgebildet ist, der über seine Länge frei überstehend zum Endlosmittel angeordnet ist. Der Schlagkörper kann vergleichsweise schlank zum Beispiel als finger- bzw. nadelartiges Element gestaltet sein. Über die am Endlosmittel überstehende Länge des Schlagkörpers kann unter anderem darauf Einfluss genommen werden, wie weit der Schlagkörper von einer Oberseite des Werkstücks aus betrachtet in Randbereichen oder Vertiefungen am Werkstück anschlagen und dort in Kontakt kommen kann. Der Schlagkörper ist in seiner Ausgangslage an den Endlosmitteln insbesondere zumindest nahezu senkrecht zur Auflagefläche für das Werkstück orientiert. Es ist aber auch eine beliebige winklige Anstellung eines Bearbeitungselements relativ zur Werkstück-Auflagefläche in der Bearbeitungszone der Vorrichtung denkbar.It is also advantageous that 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.
Weiter wird vorgeschlagen, dass der vordere Bearbeitungsabschnitt des Bearbeitungselements als im wesentlichen zylindrischer Körper ausgestaltet ist, der stirnseitig abgeflacht ist. Die vorne liegende bzw. stirnseitige Abflachung, die in der Ausgangslage zum bearbeitenden Werkstück am nächsten positioniert ist, kann z.B. vollständig eben, geringfügig sphärisch gewölbt oder nahezu halbkugelig nach außen gewölbt sein. Der Übergang zwischen der Außenseite des zylindrischen Körpers und der stirnseitigen Abflachung kann mit oder ohne umlaufende Fase versehen sein.It is further proposed that 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.
Besonders bevorzugt ist es, dass die mit den Endlosmitteln realisierte Bewegungsrichtung des Bearbeitungselements in einer Bearbeitungszone zum Bearbeiten des Werkstücks schräg oder quer zu einer Bewegungsrichtung des Werkstücks beim Heranführen und/oder Vorbeibewegen an die Vorrichtung ist. Insbesondere kann das Bearbeitungselement über die Endlosmittel kontinuierlich umlaufend bewegt werden. Auch das Werkstück kann kontinuierlich gefördert werden, z.B. auf einem Förderband oder einem Rollentisch ggf. mit angetriebenen Förderrollen, um an den Endlosmitteln mit den Bearbeitungselementen vorbeigeführt und bearbeitet zu werden.It is particularly preferred that 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. In particular, the processing element can be continuously circulated continuously over the endless means. Also, 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.
Erfindungsgemäß ist ein band-, seil- oder riemenartiges Element als umlaufende Endlosmittel vorgesehen. So kann ein besonders einfaches und zuverlässiges System realisiert werden.According to the invention, a belt, rope or belt-like element is provided as a circulating endless means. So a particularly simple and reliable system can be realized.
Bevorzugt ist es, dass zumindest zwei umlaufende Endlosmittel mit jeweils mindestens einem Bearbeitungselement vorgesehen sind. So können insbesondere auch die Umlaufrichtungen der Endlosmittel umgekehrt werden bzw. können bei zwei umlaufenden Endlosmittel zwei unterschiedliche Umlaufrichtungen in einem Bearbeitungsvorgang realisiert werden, jeweils eine Umlaufrichtung durch ein Endlosmittel. Vorteilhaft sind in Durchlaufrichtung des Werkstücks zwei hintereinander liegende Endlosmittel nur wenig voneinander beabstandet und entgegengesetzt umlaufend.It is preferred that at least two circumferential endless means are each provided with at least one processing element. Thus, in particular, 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. Advantageously, two successive endless means are only in the direction of passage of the workpiece little spaced apart and opposite circulating.
Schließlich wird weiter vorgeschlagen, dass von den zumindest zwei umlaufenden Endlosmittel mit jeweils mindestens einem Bearbeitungselement ein Endlosmittel oberhalb des Werkstückes und ein weiteres Endlosmittel unterhalb des Werkstückes vorbeibewegbar ist, insbesondere in zueinander entgegengesetzter Umlaufrichtung, um auch durch nur einseitig anschlagende Bearbeitungselemente einem unerwünschten Wegdriften des Werkstücks bei seinem Vorwärtsbewegen entgegenzuwirken.
Insbesondere lassen sich sämtliche oben- und untenliegende Bereiche am Werkstück von den Bearbeitungselementen erreichen. Bevorzugt sind zwei Endlosmittel nah beieinander bzw. hintereinander oberhalb und zwei weitere Endlosmittel nah beieinander bzw. hintereinander unterhalb des Durchlaufbereichs bzw. einer Bearbeitungszone für das zu bearbeitende Werkstück positioniert.Finally, it is further proposed that of the at least two circumferential endless means, 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.
In particular, all the areas above and below the workpiece can be achieved by the processing elements. Preferably, 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.
Grundsätzlich kann die Bearbeitungsvorrichtung als "standalone" Lösung also als Einzelmaschine eingesetzt werden, oder auch kombiniert sein, z.B. als Vorsatzeinheit vor einer Verrundungs-, Schleif-, Polier- oder Bürstmaschine zur vergleichsweise feineren Bearbeitung des Werkstücks. Auf diese Weise können die bisherigen Maschinen weniger aufwändig ausgestaltet und/oder längere Laufzeiten zwischen Reparatur- bzw. Wartungsarbeiten ermöglicht werden bzw. bessere Bearbeitungsergebnisse liefern, da bereits insbesondere eine grobe Vorbearbeitung des Werkstücks durch die erfindungsgemäße Vorrichtung erfolgt. Beispielsweise ist eine Anordnung z.B. in einer Maschine denkbar, bei welcher zuerst die vorgeschlagene Abschlagvorrichtung, dann eine Schleifvorrichtung und abschließend eine Verrundungsvorrichtung zur Bearbeitung des Werkstücks zum Einsatz kommt.In principle, the processing device can be used as a "stand-alone" solution, ie as a single machine, or combined, for example as a front-end unit in front of a rounding, grinding, polishing or brushing machine for comparatively finer machining of the workpiece. In this way, the previous machines can be made less complicated and / or longer run times between repair or maintenance work can be enabled or provide better processing results, as already done in particular a rough pre-machining of the workpiece by the device according to the invention. For example, an arrangement is conceivable, for example in a machine, in which first the proposed knock-off device, then a grinding device and finally a rounding device for machining the workpiece is used.
Bei bestehenden Verrundungs-, Schleif-, Polier- oder Bürstmaschinen können diese dank der Erfindung auch kleiner konzipiert werden bzw. ggf. kann mit dem so gewonnnen Bauraum eine erfindungsgemäße Vorrichtung integriert werden, so dass eine erhöhte Bearbeitungsqualität erreicht wird, ohne dass die Grundkonstruktion bzw. Baugröße der bisherigen Maschinen erhöht werden muss.In existing rounding, grinding, polishing or brushing these can be designed smaller thanks to the invention or possibly can be integrated with the space so won 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.
Weitere Vorteile und Einzelheiten der Erfindung sind anhand der in den Figuren gezeigten Ausführungsbeispielen näher erläutert.Further advantages and details of the invention are explained in more detail with reference to the embodiments shown in FIGS.
Im Einzelnen zeigt:
- Figur 1:
- Eine Teilansicht von vorne auf eine stark schematisierte erfindungsgemäße Bearbeitungsvorrichtung,
- Figur 2:
- eine geschnittene Detailansicht im Bereich eines umlaufenden Bandes mit einem davon getrennten durch Aufschrauben anbringbaren Bearbeitungselement,
- Figur 3a bis 3c:
- ein alternatives Bearbeitungselement in perspektivischer Ansicht, in Seitenansicht mit einem nur im Umriss gezeigten Gummipuffer und von oben,
- Figur 3d:
- Schnittansicht durch das Bearbeitungselement gemäß Linie A-A in
Figur 3c , - Figur 4a bis 4c:
- ein weiteres alternatives Bearbeitungselement in unterschiedlichen Ansichten,
- Figur 5a:
- einen Ausschnitt eines Doppelkeilriemens mit Bearbeitungselementen in perspektivischer Ansicht mit einem Bearbeitungselement in Explosionsdarstellung,
- Figur 5b:
- den Doppelkeilriemen gemäß
Figur 5a in Seitenansicht, - Figur 5c:
- eine Schnittansicht durch den Doppelkeilriemen gemäß Linie B-B in
Figur 5b , - Figur 6a bis 6c:
- zu den
Figuren 5a bis 5c entsprechende Ansichten eines alternativen Endlosriemens wobeiFigur 6c einer Schnittansicht durch den Endlosriemen gemäß Linie C-C inFigur 6b entspricht, - Figur 7a:
- perspektivisch schräg von oben eine stark schematisierte Ansicht einer erfindungsgemäßen Vorrichtung zum Bearbeiten eines Werkstückes unter Weglassung von Bauteilen der Bearbeitungsvorrichtung,
- Figur 7b:
- die in
Figur 7a gezeigte Anordnung von der Seite, - Figur 8a und 8b:
- einen Abschnitt eines weiteren Keilriemens mit Bearbeitungselementen in perspektivischer Ansicht und im Schnitt und
- Figur 9:
- ein alternatives Bearbeitungselement teils geschnitten in perspektivischer Ansicht.
- FIG. 1:
- A partial view from the front of a highly schematized inventive processing apparatus,
- FIG. 2:
- a sectional detailed view in the region of a circulating belt with a separate attachable by screwing machining element,
- FIGS. 3a to 3c:
- an alternative processing element in perspective view, in side view with a rubber buffer shown only in outline and from above,
- Figure 3d:
- Section through the processing element along line AA in
Figure 3c . - FIGS. 4a to 4c:
- another alternative editing element in different views,
- FIG. 5a
- a detail of a double V-belt with processing elements in perspective view with a processing element in exploded view,
- FIG. 5b:
- the double V-belt according to
FIG. 5a in side view, - FIG. 5c:
- a sectional view through the double V-belt according to line BB in
FIG. 5b . - FIGS. 6a to 6c:
- to the
FIGS. 5a to 5c corresponding views of an alternative endless belt whereFIG. 6c a sectional view through the endless belt along line CC inFIG. 6b corresponds, - FIG. 7a:
- perspective obliquely from above a highly schematic view of a device according to the invention for machining a workpiece with omitting components of the processing device,
- FIG. 7b:
- in the
Figure 7a shown arrangement from the side, - FIGS. 8a and 8b:
- a section of another V-belt with processing elements in perspective view and in section and
- FIG. 9:
- an alternative editing element partly cut in a perspective view.
Am Werkstück 3 sind zu entfernende Materialbereiche 6 angedeutet. Die Bearbeitungszone 4 wird oberhalb durch ein in der Laufrichtung umschaltbares Umlaufband 7 begrenzt, das um zwei drehbar gelagerte Scheiben 8 und 9 geführt ist und von denen z.B. eine motorisch antreibbar ist. Die mit dem Rollentisch 2 realisierte Bewegungsrichtung für das Werkstück 3 ist quer zur Laufrichtung des Umlaufbandes 7.On the
In
Alternativ zum Umlaufband 7 kann ein Seil oder ein Riemen vorgesehen sein.Alternatively to the circulating
Prinzipiell können zur Herstellung eines Bearbeitungselements z.B. gemäß
Die
Am vorderen Ende des Hartmetallstiftes 19 ist eine umlaufende Fase 19a mit einem Fasenwinkel α1 von 30 Winkelgrade ausgebildet, wobei der Fasenwinkel auch im Bereich zwischen 20 bis 40 Winkelgraden liegen kann. Stirnseitig ist der Hartmetallstift 19 nach außen gewölbt bzw. sphärisch mit einem Kugelradius von 10 mm ausgestaltet, wobei auch andere Radien insbesondere zwischen 5 mm und 15 mm vorteilhaft sein können.At the front end of the
Für einen festeren Sitz des im Gummipuffer 20 einvulkanisierten Hartmetallstiftes 19 weist dieser einen umlaufenden Wulstring 19b auf.For a tighter fit of the vulcanized in the
Typische Abmessungen des Bearbeitungselements 19 sind mit Hilfe von
Grundsätzlich sind aber auch andere Abmessungen der gezeigten Bearbeitungselemente denkbar.In principle, however, other dimensions of the processing elements shown are conceivable.
Das Bearbeitungselement 22 gemäß
Die
In den
Das Kraftband 32 ist für eine vergleichsweise besonders hohe Drehmomentübertragung zwischen einem Antriebselement und dem Kraftband 32 als Riemenband mit unterseitig drei Keilriemenabschnitten ausgestaltet.The
Das bandförmige metallische Werkstück 36 mit vorne und hinten randseitig überstehenden Schlackeresten 36a wird in Durchführrichtung des Werkstücks 36 durch die Bearbeitungsvorrichtung gemäß Pfeil P mittels eines Zuführförderbandes 37 zur Bearbeitungszone 38 der Bearbeitungsvorrichtung transportiert. In der Bearbeitungszone 38 werden durch oberhalb und unterhalb angeordnete angetrieben umlaufende Keilriemen 41, 42, 43 und 44 über daran befestigte Bearbeitungselemente (nicht dargestellt), die Schlackereste 36a entfernt bzw. weggeschlagen.The band-shaped
Zum Niederhalten des in der Bearbeitungszone 38 bearbeiteten Werkstücks 36 können Niederhalteelemente 39 in Bewegungsrichtung P vor, zwischen und nach den umlaufenden Keilriemen 41 bis 44 vorhanden sein. Im Bereich hinter den Keilriemen 42, 44 ist ein Förderband 40 zum Weitertransport des bearbeiteten Werkstücks 36 gemäß Pfeil P vorhanden.For holding down the machined in the
Zur vollständigen Bearbeitung des Werkstücks 36 ist jeder der Keilriemen 41 bis 44 um zwei in etwa über die Breite des Zuführförderbandes 37 beabstandete Rollen 45 herumgeführt und motorisch angetrieben.For complete machining of the
Für eine vollständige bzw. gleichartige Bearbeitung der Oberseite des Werkstücks 36 bzw. um alle Werkstückbereiche von beiden Seiten und insbesondere sämtliche Kantenbereiche zu erreichen, laufen die oberen Keilriemen 41 und 42 in entgegengesetzter Umlaufrichtung. Entsprechend laufen auch die Keilriemen 43 und 44 in entgegengesetzter Umlaufrichtung zur entsprechenden Bearbeitung der Unterseite des Werkstücks 36 von beiden Seiten. Zur Bearbeitung der schmalen Bereiche zwischen der Ober- und Unterseite des Werkstücks 36 können die Bearbeitungselemente der oberen und unteren Keilriemen 41 bis 44 gleichermaßen an den Schmalseiten des Werkstücks 36 anschlagen.For a complete or similar processing of the upper side of the
Damit bei der Bearbeitung des Werkstücks 36 durch die von den Bearbeitungselementen auf das Werkstück 36 aufgebrachten Kräfte ein Verschieben oder Herausschleudern des Werkstücks 36 aus der Bearbeitungszone 38 vermieden wird, können nicht dargestellten Halterungen bzw. Führungen vorgesehen sein. Zusätzlich oder alternativ werden in der Regel die Umlaufrichtungen der oben und unten gegenüberliegenden Keilriemen 41 und 43 bzw. 42 und 44 entgegengesetzt eingestellt, so dass sich die von den Bearbeitungselementen auf das Werkstück 36 aufgebrachten Kräfte zumindest nahezu vollständig aufheben.In order to avoid displacement or ejection of the
Für eine Einstellung der Keilriemen 41 bis 44 in der Höhe bzw. der Vertikalen gemäß Doppelpfeil P1 in
Der in
In
Der Seite mit dem Stahlstift 51 gegenüberliegend ist am Hohlprofil 53 eine Anbringplatte 57 fest fixiert, die z.B. mit einer Innengewindebohrung 58 versehen ist, über welche mit einer Anbringschraube das Bearbeitungselement 50 an einem umlaufenden Endlosmittel z.B. einem Keilriemen anbringbar ist. Über ein zur Innengewindebohrung 58 beabstandetes Loch 59 in einem Laschenabschnitt 60 der Anbringplatte 57 kann das Bearbeitungselement 50 gegen ein Verdrehen relativ zum umlaufenden Endlosmittel gesichert werden, z.B. über eine weitere Schraube. Der Stahlstift 51 kann oben am Bügel 56 z.B. angeschraubt, angelötet oder anderweitig fixiert sein.The side with the
- 11
- SchlackenentfernerSchlackenentferner
- 22
- Rollentischroller table
- 33
- Werkstückworkpiece
- 44
- Bearbeitungszoneprocessing zone
- 55
- Rollerole
- 66
- Materialbereichmaterial area
- 77
- Umlaufbandcirculating belt
- 88th
- Scheibedisc
- 99
- Scheibedisc
- 1010
- Bearbeitungselementprocessing element
- 1111
- Platteplate
- 1212
- GewindestiftSet screw
- 1313
- Gummipufferrubber buffers
- 1414
- Platteplate
- 1515
- GewindestiftSet screw
- 1616
- HartmetallstiftHard metal pin
- 1717
- Gewindeplattethreaded plate
- 1818
- Bearbeitungselementprocessing element
- 1919
- HartmetallstiftHard metal pin
- 19a19a
- Fasechamfer
- 19b19b
- Wulstringbead
- 2020
- Gummipufferrubber buffers
- 2121
- Gewindeplattethreaded plate
- 2222
- Bearbeitungselementprocessing element
- 2323
- HartmetallstiftHard metal pin
- 23a23a
- RundscheibenabschnittRound disc portion
- 2424
- Gummipufferrubber buffers
- 2525
- Gewindeplattethreaded plate
- 2626
- Doppelkeilriemendouble V-belt
- 26a26a
- Außenseiteoutside
- 2727
- Bearbeitungselementprocessing element
- 2828
- Rundlochround hole
- 2929
- Gummipufferrubber buffers
- 3030
- HartmetallstiftHard metal pin
- 3131
- Befestigungsschraubefixing screw
- 3232
- Kraftbandkraftband
- 3333
- Rundlochround hole
- 3434
- Befestigungsschraubefixing screw
- 3535
- Bearbeitungselementprocessing element
- 3636
- Werkstückworkpiece
- 36a36a
- Schlackeresteslag residues
- 3737
- Zuführförderbandfeed conveyor belt
- 3838
- Bearbeitungszoneprocessing zone
- 3939
- NiederhalteelementDown member
- 4040
- Förderbandconveyor belt
- 4141
- Keilriemenfan belt
- 4242
- Keilriemenfan belt
- 4343
- Keilriemenfan belt
- 4444
- Keilriemenfan belt
- 4545
- Rollerole
- 4646
- Keilriemenfan belt
- 4747
- Bearbeitungselementprocessing element
- 47a47a
- Gummipufferrubber buffers
- 47b47b
- Stahlstiftsteel pin
- 4848
- Rundlochround hole
- 4949
- Befestigungsschraubefixing screw
- 5050
- Bearbeitungselementprocessing element
- 5151
- Stahlstiftsteel pin
- 5252
- GummifederelementRubber spring element
- 5353
- Hohlprofilhollow profile
- 5454
- VierkantprofilSquare profile
- 5555
- Gummielementrubber element
- 5656
- Bügelhanger
- 5757
- Anbringplattemounting plate
- 5858
- InnengewindebohrungInternally threaded bore
- 5959
- Lochhole
- 6060
- Laschenabschnitttab portion
Claims (11)
- Device for machining workpieces, in particular band-like or plate-like metal workpieces (3, 36), comprising rotating endless means, on which a machining element moving past a workpiece (3, 36) for removing sections of material from the workpiece (3, 36) is arranged, wherein the machining element (10, 18, 22, 27, 35, 47, 50) is arranged by means of a bending section (13, 20, 24, 29, 47a, 55) on the endless means (7, 26, 32, 41-44, 46), so that the machining element (10, 18, 22, 27, 35, 47, 50) can move away laterally on striking the workpiece (3, 36), wherein the machining element (10, 18, 22, 27, 35, 47, 50) comprises a rigid front machining section (16, 19, 23, 30, 47b, 51) for striking the workpiece (3, 36), characterised in that the rotating endless means are configured as a band-like, cable-like or beltlike element.
- Device according to claim 1, characterised in that the bending section (13, 20, 24, 29, 47a, 55) is configured such that the machining element (10, 18, 22, 27, 35, 47, 50) can move away in any direction radially relative to the longitudinal axis of the machining element (10, 18, 22, 27, 35, 47, 50).
- Device according to claim 1 or 2, characterised in that the bending section (13, 20, 24, 29, 47a, 55) is configured elastically for automatically restoring the front machining section (16,19, 23, 30, 47b, 51) to a starting position.
- Device according to one of the preceding claims, characterised in that the bending section comprises an elastomer element (13, 20, 24, 29, 47a, 55), by means of which the front machining section (16, 19, 23, 30, 47b, 51) can be deflected.
- Device according to one of the preceding claims, characterised in that the bending section comprises a spring.
- Device according to one of the preceding claims, characterised in that the machining element (10, 18, 22, 27, 35, 47, 50) is configured as an elongated impact body, which is arranged over its length to protrude freely relative to the endless means (7, 26, 32, 41-44, 46).
- Device according to one of the preceding claims, characterised in that the front machining section (16, 23, 30, 47b, 51) of the machining element (10, 22, 27, 35, 47, 50) is configured as an essentially cylindrical body which is flattened on the end face.
- Device according to one of the preceding claims, characterised in that the direction of movement of the machining element (10, 18, 22, 27, 35, 47, 50) performed by the endless means (7, 26, 32, 41-44, 46) in a machining area (4, 38) for machining the workpiece (3, 36) is oblique or perpendicular to a direction of movement of the workpiece (3, 36) when moving up to the device and/or moving past the device.
- Device according to one of the preceding claims, characterised in that a band-like element (7, 32) is provided as the rotating endless means.
- Device according to one of the preceding claims, characterised in that at least two rotating endless means (41-44) are each provided with at least one machining element.
- Device according to one of the preceding claims, characterised in that, of the at least two rotating endless means each with at least one machining element, one endless means (41, 42) can be moved past above the workpiece (36) and a further endless means (43, 44) can be moved past below the workpiece (36).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008016944A DE102008016944A1 (en) | 2008-04-01 | 2008-04-01 | Device for processing workpieces |
PCT/EP2009/002341 WO2009121562A1 (en) | 2008-04-01 | 2009-03-31 | Device for machining workpieces |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2262615A1 EP2262615A1 (en) | 2010-12-22 |
EP2262615B1 true EP2262615B1 (en) | 2013-09-04 |
Family
ID=41037759
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09728805.4A Active EP2262615B1 (en) | 2008-04-01 | 2009-03-31 | Device for machining workpieces |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2262615B1 (en) |
DE (1) | DE102008016944A1 (en) |
WO (1) | WO2009121562A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015110115A1 (en) * | 2015-06-24 | 2016-12-29 | Georg Weber | Device for processing a workpiece |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3839220C2 (en) * | 1988-11-19 | 1998-07-02 | Festo Ag & Co | Rotary tool for a processing machine for removing material, e.g. B. rust, paint, etc., from a surface |
JP3098171B2 (en) * | 1995-05-18 | 2000-10-16 | 日立造船株式会社 | Debris removal tool |
DE20320821U1 (en) * | 2003-05-07 | 2005-03-17 | Lissmac Maschb Und Diamantwerk | Machine for removing oxide layer from edge of metal strip or sheet which has been cut using laser has endless belts, on which brushes are mounted |
DE20312681U1 (en) * | 2003-08-16 | 2003-10-30 | Paul Ernst Maschinenfabrik GmbH, 74927 Eschelbronn | Device for removing the oxide layer from metallic workpieces |
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 (en) * | 2005-07-25 | 2005-10-13 | Lissmac Maschinenbau Und Diamantwerkzeuge Gmbh | Emery cloth assembly for removal of oxide surface layer from laser cut work pieces |
-
2008
- 2008-04-01 DE DE102008016944A patent/DE102008016944A1/en not_active Withdrawn
-
2009
- 2009-03-31 WO PCT/EP2009/002341 patent/WO2009121562A1/en active Application Filing
- 2009-03-31 EP EP09728805.4A patent/EP2262615B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP2262615A1 (en) | 2010-12-22 |
WO2009121562A1 (en) | 2009-10-08 |
DE102008016944A1 (en) | 2009-10-08 |
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