EP3108999B1 - Device for treating a workpiece - Google Patents

Device for treating a workpiece Download PDF

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Publication number
EP3108999B1
EP3108999B1 EP16174888.4A EP16174888A EP3108999B1 EP 3108999 B1 EP3108999 B1 EP 3108999B1 EP 16174888 A EP16174888 A EP 16174888A EP 3108999 B1 EP3108999 B1 EP 3108999B1
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EP
European Patent Office
Prior art keywords
rotary body
rotary
connecting element
main body
belt
Prior art date
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Active
Application number
EP16174888.4A
Other languages
German (de)
French (fr)
Other versions
EP3108999A3 (en
EP3108999A2 (en
Inventor
Georg Weber
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Individual
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Individual
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Publication of EP3108999A2 publication Critical patent/EP3108999A2/en
Publication of EP3108999A3 publication Critical patent/EP3108999A3/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
    • B24B29/005—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents using brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/04—Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/06—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor involving conveyor belts, a sequence of travelling work-tables or the like
    • 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
    • B24D13/06—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery the flaps or strips being individually attached
    • 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
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D99/00—Subject matter not provided for in other groups of this subclass

Definitions

  • the invention relates to an apparatus for processing a workpiece with at least two processing elements and a circulating belt for moving the processing elements relative to a workpiece to be machined.
  • the known device comprises at least one provided with processing elements circulating conveyor.
  • the conveyor leads the processing elements obliquely or transversely to the feed direction of the workpiece in the region of the workpiece to be machined at least approximately linear over.
  • the processing elements are each screwed by means of a fastening screw with the V-belt of the conveyor. This has the disadvantage that the screw can be solved only with the help of a tool. Thus, a change of the processing elements is relatively cumbersome.
  • the processing elements each comprise a base body and a base connected to the first connecting element, which with a to first connecting element complementary and connected to the belt second connecting element is connectable.
  • the first connection member includes a rotary body
  • the second connection member has a connection portion for connecting to the rotary body.
  • the rotary body is arranged relative to the base body and connected thereto, that during the processing of the workpiece on the base body, a resultant force is exerted on the rotary body, which causes a torque for rotation of the rotary body in the first rotational direction.
  • the torque prevents the rotary body from leaving its connected state during machining of the workpiece.
  • the torque during machining of the workpiece remains substantially the same.
  • the connected state of the rotary body can be securely maintained during the machining process.
  • the rotation of the rotary body takes place in the first rotational direction and in the second rotational direction in each case about an axis of rotation, wherein the axis of rotation is perpendicular to the surface of the belt.
  • the rotary body can be rotated in parallel with the surface of the belt to connect the rotary body to the connecting portion and to separate it from the connecting portion.
  • the rotary body and the base body are integrally formed together.
  • an undesirable rotation of the body relative to the rotary body during the machining process can be avoided.
  • the rotary body is preferably arranged asymmetrically relative to a longitudinal side of the base body and / or relative to a transverse side of the base body on an underside of the base body facing the second connecting element.
  • a first distance of the rotary body from a front edge in the direction of the main body is smaller than a second distance of the rotary body from a rear edge in the direction of the main body.
  • a third distance of the rotary body from a front edge of the main body in the feed direction may be smaller than a fourth distance from a rear edge of the main body in the feed direction.
  • the rotary body may be provided in a front in the grinding direction and in the feed direction of the body.
  • the first distance is between 35 and 45 mm.
  • the second distance is between 20 and 30 mm.
  • a suitable value for the resulting force can be given to the rotating body.
  • connection area is formed by a recess in the second connection element.
  • connection area can be made relatively easily.
  • the side wall of the recess is inclined in the direction of the interior of the recess.
  • the rotary body can be securely received by the recess.
  • the device comprises a transport device for generating a relative movement between the workpiece to be machined and the processing elements.
  • the workpiece can be moved for processing by means of the processing elements in a feed direction.
  • the belt is designed such that the processing elements are moved in the region of the workpiece to be machined in a first translational movement direction.
  • the transport device is designed such that the workpiece is moved in a second translational movement direction.
  • an angle between the first translational movement direction and the second translational movement direction is different from 0 ° or 180 °.
  • the first and second translational directions of movement relative to each other may have any alignment other than parallel or anti-parallel alignment.
  • the angle between the first translational movement direction and the second translational movement direction is 90 °.
  • the first and second translational movement direction to be aligned perpendicular to each other.
  • the first translational movement direction corresponds to the grinding direction
  • the second translational movement direction corresponds to the feed direction.
  • the second connecting element and the belt are connected by means of a screw in the middle region of the belt.
  • the second connection member can be reliably attached to the belt.
  • the second connecting element is held against rotation by means of two pins against the belt.
  • the screw and the two pins are arranged in a line perpendicular to the grinding direction.
  • the two pins are arranged in the edge region of the belt on two opposite sides of the connection region.
  • the processing elements are spaced apart from one another such that the base body in the rotation of the rotating body in the first direction of rotation or in the second rotational direction by a rotation angle, in particular within a rotation angle range of 25 ° to 120 °, for example within a rotation angle range of 35 ° to 95 °, is freely rotatable.
  • a sufficient distance between the processing elements can be provided so that they can be changed individually.
  • the base body is in an installed state after the connection of the rotary body with the connection region. Further, after the separation of the rotary body from the connecting portion, the main body is in a disassembled state.
  • the first connecting element and the second connecting element screwless connectable and designed such that a change between the installed state and the disassembled state of the body is done manually.
  • a quick change system for the individual processing elements can be realized.
  • the belt is a V-belt, which is deflected over two pulleys and guided endlessly.
  • a safe guiding of the arranged on the belt processing elements can be achieved.
  • the processing elements each comprise a grinding tool, a brush tool or a polishing tool for grinding, brushing or polishing the surface of the workpiece.
  • the processing elements may be provided in particular for the grinding process.
  • a machining element for use in one of the devices described above.
  • the processing element comprises a base body and a first connecting element which is connected to the base body and which can be connected to a second connecting element of the device that is complementary to the first connecting element.
  • the first connection element comprises a rotary body which can be connected to a connection region of the second connection element of the device. Upon rotation of the rotary body in a first direction of rotation, the rotary body is connected to the connecting area. Upon rotation of the rotary body in a second direction of rotation opposite to the first rotational direction, the rotary body is separated from the connecting area.
  • the rotary body is arranged relative to the base body and connected thereto, that at a predetermined relative movement for machining a workpiece on the base body a resultant force is applied to the rotary body, which causes a torque for rotation of the rotary body in the first rotational direction.
  • Fig.1 shows a schematic perspective view of an apparatus 10 for processing a workpiece 12 according to an embodiment of the present invention.
  • the apparatus 10 comprises a plurality of processing elements 14a, 14b arranged on a revolving belt 16.
  • the belt 16 is deflected over two pulleys 18a, 18b and guided endlessly.
  • the circulation direction is in Fig.1 shown schematically by the arrow P3.
  • the belt 16 is a triple V-belt.
  • the processing elements 14a, 14b are moved relative to the workpiece 12 by means of the belt 16.
  • the machining elements 14a, 14b are moved in the region of the workpiece 12 to be machined in a first movement direction P1, which is also referred to as the grinding direction.
  • the in Fig.1 Device 10 shown a transport device (not shown), with the aid of which the workpiece 12 is moved in a direction of movement as the second direction of movement P2.
  • the transport device is for example a suitable transport table.
  • the machining operation such as the grinding process for grinding the surface of the workpiece to be machined 12, can be performed.
  • the grinding direction P1 corresponds to a first translational movement direction
  • the feed direction P2 corresponds to a second translational movement direction.
  • the first and second translational directions of movement may be any angle other than 0 ° or 180 ° to each other.
  • the processing elements 14a, 14b can be moved transversely or obliquely to the feed direction P2 of the workpiece 12.
  • Fig.2 shows a schematic plan view of the device 10 for processing the workpiece 12 after Fig.1 .
  • the relative arrangement of the belt 16 with the processing elements 14a, 14b to the workpiece 12 moved in the feed direction P2 is clearly visible.
  • a section line AA which runs along the central region of the belt 16 through the processing elements 14a, 14b. Further details of in Fig.2 shown processing elements 14a, 14b are described below with reference to 3a and 3b described.
  • 3a shows a sectional view along the section line AA in Fig.2 , In 3a In particular, the internal structure of the belt 16 and pulleys 18a, 18b is shown. Furthermore, in 3a the attachment of the processing elements 14a, 14b the belt 16 shown schematically. In the 3a shown processing elements 14a, 14b in the area Z are in 3b shown enlarged.
  • 3b shows an enlarged view of the area Z of in 3a shown sectional view.
  • the processing elements 14a, 14b each comprise a main body 20a, 20b and a first connecting element 22a, 22b connected to the main body 20a, 20b. Furthermore, according to 3b in each case one with the belt 16 by means of a screw 30a, 30b connected second connecting element 24a, 24b provided. As in 3b schematically illustrated, the second connecting element 24a, 24b is complementary to the first connecting element 22a, 22b. With the aid of the first and second connecting elements 22a, 22b or 24a, 24b, the processing elements 14a, 14b can be fastened to the belt 16.
  • the processing elements 14a, 14b each comprise a tool, preferably a grinding tool 32a, 32b and a holding member 34a, 34b for holding the respective grinding tool 32a, 32b.
  • the holding element 34a, 34b and the grinding tool 32a, 32b respectively form the main body 20a, 20b of the processing elements 14a, 14b.
  • the grinding tool 32a, 32b is fixedly connected to the holding member 34a, 34b, respectively.
  • the grinding tool 32a, 32b serves for grinding the surface of the workpiece 12 to be machined.
  • the grinding tool 32a, 32b comprises, for example, abrasive papers or abrasive nonwovens.
  • the processing elements 14a, 14b may each also comprise a brush tool or a polishing tool.
  • the brush tool or polishing tool serves for brushing or polishing the surface of the workpiece 12.
  • the first connecting element 22a, 22b of the processing elements 14a, 14b comprises a rotary body 26a, 26b. Furthermore, according to 3b the second connecting member 24a, 24b has a connecting portion 28a, 28b for connecting to the rotary body 26a, 26b.
  • the distance between two adjacent processing elements 14a, 14b is so large that the base body 20a, 20b in a rotation of the rotary body 26a, 26b in a rotational direction parallel to the surface of the belt 16 is freely rotatable.
  • the free rotation is given by a rotation angle within a rotation angle range of 25 ° to 120 °, for example within a rotation angle range of 35 ° to 95 °. That is, the two adjacent processing elements 14a, 14b do not abut each other upon rotation of their respective rotary bodies 26a, 26b, and thus can be changed one by one.
  • 4a shows a schematic longitudinal sectional view of a processing element 14 a of Fig.1 shown device 10 with the main body 20a, the first connecting element 22a and the rotary body 26a. Furthermore, in 4a the second connecting element 24a with the connecting portion 28a and the components 16 and 30a shown. In the longitudinal section of 4a the asymmetrical arrangement of the rotary body 26a is clearly visible relative to the longitudinal side of the main body 20a. The grinding direction P1 is parallel to the longitudinal side of the main body 20a.
  • a first distance L1 of the rotary body 26a from a front edge 40 of the main body 20a in the grinding direction P1 is smaller than a second distance L2 of the rotary body 26a from a rear edge 42 of the main body 20a in the grinding direction P1.
  • the first and second distances L1, L2 are related to a rotation axis R of the rotary body 26a.
  • the screw 30a extends through the second connecting member 24a to a recess formed by the rotary body 26a. This recess is located near the central axis Q of the screw 30a.
  • 4b shows a schematic cross-sectional view of a processing element 14a of in Fig.1 shown device 10 with the main body 20a, the first connecting element 22a and the rotary body 26a. Furthermore, in 4b the second connecting element 24a with the connecting portion 28a and the components 16 and 30a shown.
  • the transverse side of the main body 20a is perpendicular to the in Fig.1 shown grinding direction P1.
  • the structure of the triple V-belt 16 is clearly visible.
  • the second connecting element 24a and the belt 16 are connected by means of the screw 30a.
  • the central portion of the belt 16 refers to the transverse extent of the belt 16.
  • a distance S3 of the center axis Q of the screw 30a from the front edge 41 of the main body 20a in the advancing direction P2 is equal to a distance S4 of the central axis Q of the screw 30a from the rear edge 43 of the main body 20a in the advancing direction P2. Furthermore, in the cross-sectional view of 4b the asymmetrical arrangement of the rotary body 26a relative to the transverse side of the main body 20a clearly visible.
  • the feed direction P2 is parallel to the transverse side of the main body 20a.
  • a third distance L3 of the rotary body 26a from the front edge 41 of the main body 20a in the feed direction P2 is smaller than a fourth distance L4 of the rotary body 26a from the rear edge 43 of the main body 20a in the advancing direction P2.
  • the third and fourth distances L3, L4 refer to the rotational axis R of the rotary body 26a, which is offset relative to the central axis Q of the screw 30a by a distance D2 in the feed direction P2.
  • two pins 36a, 36b are clearly visible for holding the second connector 24a.
  • the two pins 36a, 36b are arranged in the edge region of the belt 16 on two opposite sides of the connecting portion 28a.
  • the two pins 36a, 36b respectively extend through the second connecting element 24a into the belt 16, so that the second connecting element 24a is held against rotation relative to the belt 16.
  • the screw 30a and the two pins 36a, 36b are arranged in a line perpendicular to the grinding direction P1.
  • the screw 30a and the two pins 36a, 36b are in the in 4b shown, common cutting plane.
  • Figure 5 shows a schematic bottom view of a processing element 14 a of Fig.1 shown device 10 with the second connecting element 24a.
  • cross-sectional view corresponds to a sectional view along the section line BB in Figure 5
  • the portion of the belt 16 located above the second connecting element 24a is shown by straight, dashed lines.
  • the connection area 28a in second connecting member 24a as well as the received from the connecting portion 28a rotary body 26a represented by curved, dashed lines.
  • the grinding direction P1 is parallel to the longitudinal extent of the belt 16.
  • the feed direction P2 is parallel to the transverse dimension of the belt 16.
  • the rotary body 26a is rotatable in a first rotational direction R1 and in a second rotational direction R2 opposite to the first rotational direction R1.
  • the rotary body 26a in the designated also as a fixed direction of rotation first rotational direction R1 is firmly rotatable.
  • the first direction of rotation R1 corresponds to a negative direction of rotation
  • the second direction of rotation R2 corresponds to a positive direction of rotation.
  • the axis of rotation R of the rotary body 26a offset by the distance D2 in the grinding direction P1 or in the feed direction P2 is shown. This distance D2 is preferably 4 mm.
  • position of the rotary body 26a corresponds to a connected, ie firmly rotated state of the rotary body 26a.
  • the connected state of the rotary body 26a is achieved by rotating the rotary body 26a in the first rotational direction R1. Further, the rotary body 26a leaves its connected state when the rotary body 26a is rotated in the second rotational direction R2.
  • the rotary body 26a can be connected to and separated from the connecting portion 28a. The rotation is done manually.
  • torque M corresponds to a rotational action on the rotary body 26a in the first direction of rotation R1. Further, the torque M is caused during the grinding process by the forces acting transversely or obliquely to the grinding direction P1, that at the surface of the main body 20a attack. These forces are transmitted to the rotary body 26a via the main body 20a.
  • Fig.4a, 4b and 5 described asymmetric arrangement of the rotary body 26a results in a resultant force F on the rotary body 26a.
  • resultant force F acts on the edge 50 of the rotary body 26a and causes the torque M.
  • the force shown is the vector of the torque M perpendicular to the surface of the belt 16 and shows in Figure 5 into the paper plane.
  • the in Figure 5 shown vector of the torque M on the rotation axis R of the rotary body 26a.
  • Figure 6 shows a schematic, perspective view of the in 4a or 4b shown processing element 14a for illustrating the outline of the rotary body 26a.
  • the rotary body 26a is disposed on the underside 38 of the main body 20a.
  • the rotary body 26a and the main body 20a are integrally formed together.
  • the helical outline of the rotating body 26a clearly visible.
  • the in Figure 6 shown rotating body 26a has a side wall which is inclined relative to the underside 38 of the main body 20a. The inclination angle is less than 90 °. In Figure 6 this angle of inclination is not shown.
  • Figure 7 shows a schematic, perspective view of the in 4a or 4b second connecting element 24a shown to illustrate the connecting portion 28a.
  • the in Figure 7 shown connecting portion 28a is used to connect the same with the in Figure 6 shown rotary body 26a with the helical outline.
  • the connection portion 28a is formed by a recess 44 in the second connection member 24a.
  • the side wall 46 of the recess 44 is inclined in the direction of the inner of the recess 44.
  • the second connection element 24a has a through-hole 52 in the middle region of the second connection element 24a and two through-holes 54a, 54b in the edge region of the second connection element 24a on two opposite sides of the connection region 28a.
  • the through hole 52 serves to receive the in 4a and 4b shown screw 30a, while the through holes 54a, 54b for receiving the in 4b shown pins 36a, 36b serve.
  • Figure 8 shows a schematic bottom view of the in Figure 7 shown second connecting element 24a.
  • the arrangement of the through-holes 52 and 54a, 54b is clearly visible.
  • the arrangement of the connecting portion 28a relative to the surface of the second connecting member 24a shown schematically.
  • the center axis Q 'of the through-hole 52 has a distance S1' from a leading edge 58 of the second connecting element 24a in the grinding direction P1, while the center axis Q 'of the through-hole 52 is at a distance S2' from a rear edge 56 of the second connecting element 24a in the direction of grinding P1 ,
  • the in Figure 8 shown connecting portion 28a to the rotary body 26a complementary.
  • the connection portion 28a and the rotary body 26a can be securely connected to each other.

Description

Die Erfindung betrifft eine Vorrichtung zum Bearbeiten eines Werkstücks mit mindestens zwei Bearbeitungselementen und einem umlaufenden Riemen zum Bewegen der Bearbeitungselemente relativ zu einem zu bearbeitenden Werkstück.The invention relates to an apparatus for processing a workpiece with at least two processing elements and a circulating belt for moving the processing elements relative to a workpiece to be machined.

Aus dem Dokument EP 19110 024 B1 ist eine Vorrichtung zum Bearbeiten eines band- oder plattenförmigen metallischen Werkstücks bekannt. Die bekannte Vorrichtung umfasst wenigstens eine mit Bearbeitungselementen versehene umlaufende Fördereinrichtung. Die Fördereinrichtung führt die Bearbeitungselemente schräg bzw. quer zur Vorschubrichtung des Werkstücks im Bereich des zu bearbeitenden Werkstücks wenigstens annähernd linear vorbei.From the document EP 19110 024 B1 a device for processing a strip or plate-shaped metal workpiece is known. The known device comprises at least one provided with processing elements circulating conveyor. The conveyor leads the processing elements obliquely or transversely to the feed direction of the workpiece in the region of the workpiece to be machined at least approximately linear over.

Bei der bekannten Vorrichtung werden die Bearbeitungselemente jeweils mittels einer Befestigungsschraube mit dem Keilriemen der Fördereinrichtung verschraubt. Dies hat den Nachteil, dass die Verschraubung nur mit Hilfe eines Werkzeugs gelöst werden kann. Somit ist ein Wechsel der Bearbeitungselemente relativ umständlich.In the known device, the processing elements are each screwed by means of a fastening screw with the V-belt of the conveyor. This has the disadvantage that the screw can be solved only with the help of a tool. Thus, a change of the processing elements is relatively cumbersome.

Ausgehend von dem bekannten Stand der Technik ist es Aufgabe der Erfindung, eine Vorrichtung und ein Bearbeitungselement zum Bearbeiten eines Werkstücks anzugeben, die bzw. das ein einfaches und schnelles Wechseln des Bearbeitungselements und gleichzeitig eine verdrehsichere Befestigung des Bearbeitungselements an dem Riemen ermöglicht.Starting from the known prior art, it is an object of the invention to provide a device and a processing element for machining a workpiece, which allows a simple and quick change of the processing element and at the same time a rotationally secure attachment of the processing element to the belt.

Diese Aufgabe wird durch eine Vorrichtung mit den Merkmalen des Anspruchs 1 und ein Bearbeitungselement mit den Merkmalen des Anspruchs 15 gelöst. Vorteilhafte Weiterbildungen sind in den abhängigen Ansprüchen angegeben.This object is achieved by a device having the features of claim 1 and a processing element having the features of claim 15. Advantageous developments are specified in the dependent claims.

Durch eine Vorrichtung mit den Merkmalen des Anspruchs 1 wird ein einfaches und schnelles Wechseln der Bearbeitungselemente und gleichzeitig eine verdrehsichere Befestigung der Bearbeitungselemente an dem Riemen erreicht, da insbesondere die Bearbeitungselemente jeweils einen Grundkörper und ein mit dem Grundkörper verbundenes erstes Verbindungselement umfassen, das mit einem zum ersten Verbindungselement komplementären und mit dem Riemen verbundenen zweiten Verbindungselement verbindbar ist. Das erste Verbindungselement umfasst einen Drehkörper, und das zweite Verbindungselement hat einen Verbindungsbereich zum Verbinden mit dem Drehkörper. Dabei erfolgt bei einer Drehung des Drehkörpers in eine erste Drehrichtung eine Verbindung des Drehkörpers mit dem Verbindungsbereich. Ferner erfolgt bei einer Drehung des Drehkörpers in eine der ersten Drehrichtung entgegengesetzten zweiten Drehrichtung eine Trennung des Drehkörpers von dem Verbindungsbereich. Der Drehkörper ist relativ zu dem Grundkörper derart angeordnet und mit diesem verbunden, dass bei der Bearbeitung des Werkstücks über den Grundkörper eine resultierende Kraft auf den Drehkörper ausgeübt wird, die ein Drehmoment für eine Drehung des Drehkörpers in die erste Drehrichtung bewirkt. Somit können die Bearbeitungselemente einfach und schnell gewechselt und gleichzeitig verdrehsicher an dem Riemen befestigt werden. Durch das Drehmoment wird verhindert, dass der Drehkörper seinen verbundenen Zustand während der Bearbeitung des Werkstücks verlässt.By a device having the features of claim 1, a simple and quick change of the processing elements and at the same time a rotationally secure attachment of the processing elements on the belt is achieved, since in particular the processing elements each comprise a base body and a base connected to the first connecting element, which with a to first connecting element complementary and connected to the belt second connecting element is connectable. The first connection member includes a rotary body, and the second connection member has a connection portion for connecting to the rotary body. In this case, upon rotation of the rotary body in a first direction of rotation, a connection of the rotary body to the connecting area takes place. Furthermore, upon rotation of the rotary body in a direction of rotation opposite to the second rotational direction, separation of the rotary body from the connecting area takes place. The rotary body is arranged relative to the base body and connected thereto, that during the processing of the workpiece on the base body, a resultant force is exerted on the rotary body, which causes a torque for rotation of the rotary body in the first rotational direction. Thus, the processing elements can be changed quickly and easily and simultaneously secured against rotation on the belt. The torque prevents the rotary body from leaving its connected state during machining of the workpiece.

Vorzugsweise bleibt das Drehmoment während der Bearbeitung des Werkstücks im Wesentlichen gleich. Somit kann der verbundene Zustand des Drehkörpers während des Bearbeitungsprozesses sicher beibehalten werden.Preferably, the torque during machining of the workpiece remains substantially the same. Thus, the connected state of the rotary body can be securely maintained during the machining process.

Vorzugsweise erfolgt die Drehung des Drehkörpers in die erste Drehrichtung bzw. in die zweite Drehrichtung jeweils um eine Drehachse, wobei die Drehachse senkrecht zur Oberfläche des Riemens ist. Somit kann der Drehkörper parallel zur Oberfläche des Riemens gedreht werden, um den Drehkörper mit dem Verbindungsbereich zu verbinden bzw. diesen von dem Verbindungsbereich zu trennen.Preferably, the rotation of the rotary body takes place in the first rotational direction and in the second rotational direction in each case about an axis of rotation, wherein the axis of rotation is perpendicular to the surface of the belt. Thus, the rotary body can be rotated in parallel with the surface of the belt to connect the rotary body to the connecting portion and to separate it from the connecting portion.

Vorzugsweise sind der Drehkörper und der Grundkörper zusammen einstückig ausgebildet. Somit kann ein unerwünschtes Verdrehen des Grundkörpers relativ zu dem Drehkörper während des Bearbeitungsprozesses vermieden werden.Preferably, the rotary body and the base body are integrally formed together. Thus, an undesirable rotation of the body relative to the rotary body during the machining process can be avoided.

Vorzugsweise ist der Drehkörper relativ zu einer Längsseite des Grundkörpers und/oder relativ zu einer Querseite des Grundkörpers asymmetrisch an einer dem zweiten Verbindungselement zugewandten Unterseite des Grundkörpers angeordnet. Somit führen die während des Bearbeitungsprozesses, insbesondere eines Schleifprozesses, an der Oberfläche des Grundkörpers angreifenden Kräfte zu der das Drehmoment bewirkenden, resultierenden Kraft auf den Drehkörper.The rotary body is preferably arranged asymmetrically relative to a longitudinal side of the base body and / or relative to a transverse side of the base body on an underside of the base body facing the second connecting element. Thus, during the machining process, in particular a grinding process, forces acting on the surface of the base body lead to the resultant force on the rotary body causing the torque.

Vorzugsweise ist ein erster Abstand des Drehkörpers von einer in Schleifrichtung vorderen Kante des Grundkörpers kleiner als ein zweiter Abstand des Drehkörpers von einer in Schleifrichtung hinteren Kante des Grundkörpers. Ferner kann ein dritter Abstand des Drehkörpers von einer in Vorschubrichtung vorderen Kante des Grundkörpers kleiner als ein vierter Abstand von einer in Vorschubrichtung hinteren Kante des Grundkörpers sein. Somit kann der Drehkörper in einem in Schleifrichtung und in Vorschubrichtung vorderen Bereich des Grundkörpers vorgesehen sein.Preferably, a first distance of the rotary body from a front edge in the direction of the main body is smaller than a second distance of the rotary body from a rear edge in the direction of the main body. Furthermore, a third distance of the rotary body from a front edge of the main body in the feed direction may be smaller than a fourth distance from a rear edge of the main body in the feed direction. Thus, the rotary body may be provided in a front in the grinding direction and in the feed direction of the body.

Vorzugsweise liegt der erste Abstand zwischen 35 und 45 mm. Ferner liegt der zweite Abstand zwischen 20 und 30 mm. Somit kann ein geeigneter Wert für die resultierende Kraft auf den Drehkörper vorgegeben werden.Preferably, the first distance is between 35 and 45 mm. Furthermore, the second distance is between 20 and 30 mm. Thus, a suitable value for the resulting force can be given to the rotating body.

Vorzugsweise ist der Verbindungsbereich durch eine Ausnehmung in dem zweiten Verbindungselement gebildet. Somit kann der Verbindungsbereich relativ einfach hergestellt werden.Preferably, the connection area is formed by a recess in the second connection element. Thus, the connection area can be made relatively easily.

Vorzugsweise ist die Seitenwand der Ausnehmung in Richtung des Inneren der Ausnehmung geneigt. Somit kann der Drehkörper von der Ausnehmung sicher aufgenommen werden.Preferably, the side wall of the recess is inclined in the direction of the interior of the recess. Thus, the rotary body can be securely received by the recess.

Vorzugsweise umfasst die Vorrichtung eine Transporteinrichtung zum Erzeugen einer Relativbewegung zwischen dem zu bearbeitenden Werkstück und den Bearbeitungselementen. Somit kann das Werkstück zur Bearbeitung mittels der Bearbeitungselemente in eine Vorschubrichtung bewegt werden.Preferably, the device comprises a transport device for generating a relative movement between the workpiece to be machined and the processing elements. Thus, the workpiece can be moved for processing by means of the processing elements in a feed direction.

Vorzugsweise ist der Riemen derart ausgebildet, dass die Bearbeitungselemente im Bereich des zu bearbeitenden Werkstücks in eine erste translatorische Bewegungsrichtung bewegt werden. Ferner ist die Transporteinrichtung derart ausgebildet, dass das Werkstück in eine zweite translatorische Bewegungsrichtung bewegt wird. Dabei ist ein Winkel zwischen der ersten translatorischen Bewegungsrichtung und der zweiten translatorischen Bewegungsrichtung von 0° oder 180° verschieden. Somit können die erste und zweite translatorische Bewegungsrichtung relativ zueinander jede Ausrichtung außer einer parallelen oder antiparallelen Ausrichtung haben.Preferably, the belt is designed such that the processing elements are moved in the region of the workpiece to be machined in a first translational movement direction. Furthermore, the transport device is designed such that the workpiece is moved in a second translational movement direction. In this case, an angle between the first translational movement direction and the second translational movement direction is different from 0 ° or 180 °. Thus, the first and second translational directions of movement relative to each other may have any alignment other than parallel or anti-parallel alignment.

Vorzugsweise beträgt der Winkel zwischen der ersten translatorischen Bewegungsrichtung und der zweiten translatorischen Bewegungsrichtung 90°. Somit können die erste und zweite translatorische Bewegungsrichtung senkrecht zueinander ausgerichtet sein. Insbesondere entspricht die erste translatorische Bewegungsrichtung der Schleifrichtung, während die zweite translatorische Bewegungsrichtung der Vorschubrichtung entspricht.Preferably, the angle between the first translational movement direction and the second translational movement direction is 90 °. Thus, the first and second translational movement direction to be aligned perpendicular to each other. In particular, the first translational movement direction corresponds to the grinding direction, while the second translational movement direction corresponds to the feed direction.

Vorzugsweise sind das zweite Verbindungselement und der Riemen mittels einer Schraube im mittleren Bereich des Riemens verbunden. Somit kann das zweite Verbindungselement zuverlässig an dem Riemen angebracht werden.Preferably, the second connecting element and the belt are connected by means of a screw in the middle region of the belt. Thus, the second connection member can be reliably attached to the belt.

Vorzugsweise ist das zweite Verbindungselement mittels zweier Stifte verdrehsicher gegenüber dem Riemen gehalten. Vorzugsweise sind die Schraube und die zwei Stifte in einer Linie senkrecht zur Schleifrichtung angeordnet. Ferner sind die zwei Stifte im Randbereich des Riemens auf zwei gegenüberliegenden Seiten des Verbindungsbereichs angeordnet. Somit kann ein Verdrehen des zweiten Verbindungselements relativ zum Riemen während des Bearbeitungsprozesses vermieden werden.Preferably, the second connecting element is held against rotation by means of two pins against the belt. Preferably, the screw and the two pins are arranged in a line perpendicular to the grinding direction. Furthermore, the two pins are arranged in the edge region of the belt on two opposite sides of the connection region. Thus, twisting of the second connecting element relative to the belt during the machining process can be avoided.

Vorzugsweise sind die Bearbeitungselemente derart beabstandet voneinander angeordnet, dass der Grundkörper bei der Drehung des Drehkörpers in die erste Drehrichtung bzw. in die zweite Drehrichtung um einen Drehwinkel insbesondere innerhalb eines Drehwinkelbereichs von 25° bis 120°, beispielsweise innerhalb eines Drehwinkelbereichs von 35° bis 95°, frei drehbar ist. Somit kann ein ausreichender Abstand zwischen den Bearbeitungselementen bereitgestellt werden, so dass diese jeweils einzeln gewechselt werden können.Preferably, the processing elements are spaced apart from one another such that the base body in the rotation of the rotating body in the first direction of rotation or in the second rotational direction by a rotation angle, in particular within a rotation angle range of 25 ° to 120 °, for example within a rotation angle range of 35 ° to 95 °, is freely rotatable. Thus, a sufficient distance between the processing elements can be provided so that they can be changed individually.

Vorzugsweise befindet sich der Grundkörper nach der Verbindung des Drehkörpers mit dem Verbindungsbereich in einem eingebauten Zustand. Ferner befindet sich der Grundkörper nach der Trennung des Drehkörpers von dem Verbindungsbereich in einem ausgebauten Zustand. Dabei sind das erste Verbindungselement und das zweite Verbindungselement schraubenlos verbindbar und derart ausgebildet, dass ein Wechsel zwischen dem eingebauten Zustand und dem ausgebauten Zustand des Grundkörpers manuell erfolgt. Somit kann ein Schnellwechselsystem für die einzelnen Bearbeitungselemente realisiert werden.Preferably, the base body is in an installed state after the connection of the rotary body with the connection region. Further, after the separation of the rotary body from the connecting portion, the main body is in a disassembled state. In this case, the first connecting element and the second connecting element screwless connectable and designed such that a change between the installed state and the disassembled state of the body is done manually. Thus, a quick change system for the individual processing elements can be realized.

Vorzugsweise ist der Riemen ein Keilriemen, der über zwei Riemenscheiben umgelenkt und endlos geführt wird. Somit kann ein sicheres Führen der auf dem Riemen angeordneten Bearbeitungselemente erreicht werden.Preferably, the belt is a V-belt, which is deflected over two pulleys and guided endlessly. Thus, a safe guiding of the arranged on the belt processing elements can be achieved.

Vorzugsweise umfassen die Bearbeitungselemente jeweils ein Schleifwerkzeug, ein Bürstenwerkzeug oder ein Polierwerkzeug zum Schleifen, Bürsten bzw. Polieren der Oberfläche des Werkstücks. Somit können die Bearbeitungselemente insbesondere für den Schleifprozess vorgesehen sein.Preferably, the processing elements each comprise a grinding tool, a brush tool or a polishing tool for grinding, brushing or polishing the surface of the workpiece. Thus, the processing elements may be provided in particular for the grinding process.

Gemäß einem weiteren Aspekt der Erfindung ist ein Bearbeitungselement für den Einsatz in einer der im Vorhergehenden beschriebenen Vorrichtung vorgesehen. Das Bearbeitungselement umfasst einen Grundkörper und ein mit dem Grundkörper verbundenes erstes Verbindungselement, das mit einem zum ersten Verbindungselement komplementären zweiten Verbindungselement der Vorrichtung verbindbar ist. Das erste Verbindungselement umfasst einen Drehkörper, der mit einem Verbindungsbereich des zweiten Verbindungselements der Vorrichtung verbindbar ist. Bei einer Drehung des Drehkörpers in eine erste Drehrichtung erfolgt eine Verbindung des Drehkörpers mit dem Verbindungsbereich. Bei einer Drehung des Drehkörpers in eine der ersten Drehrichtung entgegengesetzten zweiten Drehrichtung erfolgt eine Trennung des Drehkörpers von dem Verbindungsbereich. Der Drehkörper ist relativ zu dem Grundkörper derart angeordnet und mit diesem verbunden, dass bei einer vorbestimmten Relativbewegung zur Bearbeitung eines Werkstücks über den Grundkörper eine resultierende Kraft auf den Drehkörper ausgeübt wird, die ein Drehmoment für eine Drehung des Drehkörpers in die erste Drehrichtung bewirkt.According to a further aspect of the invention, a machining element is provided for use in one of the devices described above. The processing element comprises a base body and a first connecting element which is connected to the base body and which can be connected to a second connecting element of the device that is complementary to the first connecting element. The first connection element comprises a rotary body which can be connected to a connection region of the second connection element of the device. Upon rotation of the rotary body in a first direction of rotation, the rotary body is connected to the connecting area. Upon rotation of the rotary body in a second direction of rotation opposite to the first rotational direction, the rotary body is separated from the connecting area. The rotary body is arranged relative to the base body and connected thereto, that at a predetermined relative movement for machining a workpiece on the base body a resultant force is applied to the rotary body, which causes a torque for rotation of the rotary body in the first rotational direction.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung, die die Erfindung anhand von Ausführungsbeispielen im Zusammenhang mit den beigefügten Figuren näher erläutert.Further features and advantages of the invention will become apparent from the following description, which illustrates the invention with reference to embodiments in conjunction with the accompanying figures.

Es zeigen:

Fig.1
eine schematische, perspektivische Ansicht einer Vorrichtung zum Bearbeiten eines Werkstücks gemäß einer Ausführungsform der vorliegenden Erfindung;
Fig.2
eine schematische Draufsicht auf die Vorrichtung zum Bearbeiten des Werkstücks nach Fig.1,
Fig.3a
eine Schnittdarstellung entlang der Schnittlinie A-A in Fig.2,
Fig.3b
eine vergrößerte Darstellung eines Bereichs der in Fig.3a gezeigten Schnittdarstellung,
Fig.4a
eine schematische Längsschnittdarstellung eines Bearbeitungselements der in Fig.1 gezeigten Vorrichtung mit einem Grundkörper, einem ersten Verbindungselement und einem Drehkörper sowie ein zweites Verbindungselement mit einem Verbindungsbereich;
Fig.4b
eine schematische Querschnittdarstellung eines Bearbeitungselements der in Fig.1 gezeigten Vorrichtung mit dem Grundkörper, dem ersten Verbindungselement und dem Drehkörper sowie dem zweiten Verbindungselement und dem Verbindungsbereich;
Fig.5
eine schematische Unteransicht eines Bearbeitungselements der in Fig.1 gezeigten Vorrichtung mit dem zweiten Verbindungselement;
Fig.6
eine schematische, perspektivische Ansicht des in Fig.4a bzw. 4b gezeigten Bearbeitungselements zur Darstellung des Umrisses des Drehkörpers;
Fig.7
eine schematische, perspektivische Ansicht des in Fig.4a bzw. 4b gezeigten zweiten Verbindungselements zur Darstellung des Verbindungsbereichs; und
Fig.8
eine schematische Unteransicht des in Fig.7 gezeigten zweiten Verbindungselements.
Show it:
Fig.1
a schematic, perspective view of an apparatus for processing a workpiece according to an embodiment of the present invention;
Fig.2
a schematic plan view of the device for machining the workpiece after Fig.1 .
3a
a sectional view along the section line AA in Fig.2 .
3b
an enlarged view of a range of in 3a shown sectional view,
4a
a schematic longitudinal sectional view of a processing element of in Fig.1 shown apparatus having a base body, a first connecting element and a rotary body and a second connecting element with a connecting portion;
4b
a schematic cross-sectional view of a processing element of in Fig.1 shown device with the main body, the first Connecting element and the rotary body and the second connecting element and the connecting portion;
Figure 5
a schematic bottom view of a processing element of in Fig.1 shown device with the second connecting element;
Figure 6
a schematic, perspective view of the in 4a or 4b processing element shown to illustrate the outline of the rotating body;
Figure 7
a schematic, perspective view of the in 4a and 4b, respectively, of the second connection element for displaying the connection region; and
Figure 8
a schematic bottom view of the in Figure 7 shown second connecting element.

Fig.1 zeigt eine schematische, perspektivische Ansicht einer Vorrichtung 10 zum Bearbeiten eines Werkstücks 12 gemäß einer Ausführungsform der vorliegenden Erfindung. Wie in Fig.1 gezeigt, umfasst die Vorrichtung 10 mehrere Bearbeitungselemente 14a, 14b, die auf einem umlaufenden Riemen 16 angeordnet sind. Der Riemen 16 wird über zwei Riemenscheiben 18a, 18b umgelenkt und endlos geführt. Die Umlaufrichtung ist in Fig.1 durch den Pfeil P3 schematisch dargestellt. Beispielsweise ist der Riemen 16 ein dreifacher Keilriemen. Die Bearbeitungselemente 14a, 14b werden mit Hilfe des Riemens 16 relativ zu dem Werkstück 12 bewegt. Insbesondere werden die Bearbeitungselemente 14a, 14b im Bereich des zu bearbeitenden Werkstücks 12 in eine auch als Schleifrichtung bezeichnete erste Bewegungsrichtung P1 bewegt. Ferner umfasst die in Fig.1 gezeigte Vorrichtung 10 eine Transporteinrichtung (nicht dargestellt), mit deren Hilfe das Werkstück 12 in eine auch als Vorschubrichtung bezeichnete zweite Bewegungsrichtung P2 bewegt wird. Die Transporteinrichtung ist beispielsweise ein geeigneter Transporttisch. Durch die Relativbewegung zwischen dem Werkstück 12 und den Bearbeitungselementen 14a, 14b kann der Bearbeitungsvorgang, wie z.B. der Schleifprozess zum Schleifen der Oberfläche des zu bearbeitenden Werkstücks 12, durchgeführt werden. Fig.1 shows a schematic perspective view of an apparatus 10 for processing a workpiece 12 according to an embodiment of the present invention. As in Fig.1 As shown, the apparatus 10 comprises a plurality of processing elements 14a, 14b arranged on a revolving belt 16. The belt 16 is deflected over two pulleys 18a, 18b and guided endlessly. The circulation direction is in Fig.1 shown schematically by the arrow P3. For example, the belt 16 is a triple V-belt. The processing elements 14a, 14b are moved relative to the workpiece 12 by means of the belt 16. In particular, the machining elements 14a, 14b are moved in the region of the workpiece 12 to be machined in a first movement direction P1, which is also referred to as the grinding direction. Furthermore, the in Fig.1 Device 10 shown a transport device (not shown), with the aid of which the workpiece 12 is moved in a direction of movement as the second direction of movement P2. The transport device is for example a suitable transport table. By the relative movement between the workpiece 12 and the processing elements 14a, 14b, the machining operation, such as the grinding process for grinding the surface of the workpiece to be machined 12, can be performed.

Wie in Fig.1 schematisch dargestellt, entspricht die Schleifrichtung P1 einer ersten translatorischen Bewegungsrichtung, während die Vorschubrichtung P2 einer zweiten translatorischen Bewegungsrichtung entspricht. Bei der Ausführungsform von Fig.1 sind die erste und zweite translatorische Bewegungsrichtung senkrecht zueinander, Bei anderen Ausführungsformen können die erste und zweite translatorische Bewegungsrichtung jeden beliebigen, von 0° oder 180° verschiedenen Winkel zueinander bilden. Somit können die Bearbeitungselemente 14a, 14b quer oder schräg zur Vorschubrichtung P2 des Werkstücks 12 bewegt werden.As in Fig.1 shown schematically, the grinding direction P1 corresponds to a first translational movement direction, while the feed direction P2 corresponds to a second translational movement direction. In the embodiment of Fig.1 For example, in other embodiments, the first and second translational directions of movement may be any angle other than 0 ° or 180 ° to each other. Thus, the processing elements 14a, 14b can be moved transversely or obliquely to the feed direction P2 of the workpiece 12.

Fig.2 zeigt eine schematische Draufsicht auf die Vorrichtung 10 zum Bearbeiten des Werkstücks 12 nach Fig.1. In der Draufsicht von Fig.2 ist die relative Anordnung des Riemens 16 mit den Bearbeitungselementen 14a, 14b zu dem in Vorschubrichtung P2 bewegten Werkstück 12 gut sichtbar. Ferner ist in Fig.2 eine Schnittlinie A-A dargestellt, die entlang des mittleren Bereichs des Riemens 16 durch die Bearbeitungselemente 14a, 14b verläuft. Nähere Einzelheiten der in Fig.2 gezeigten Bearbeitungselemente 14a, 14b werden im Folgenden anhand von Fig.3a und 3b beschrieben. Fig.2 shows a schematic plan view of the device 10 for processing the workpiece 12 after Fig.1 , In the top view of Fig.2 the relative arrangement of the belt 16 with the processing elements 14a, 14b to the workpiece 12 moved in the feed direction P2 is clearly visible. Furthermore, in Fig.2 a section line AA, which runs along the central region of the belt 16 through the processing elements 14a, 14b. Further details of in Fig.2 shown processing elements 14a, 14b are described below with reference to 3a and 3b described.

Fig.3a zeigt eine Schnittdarstellung entlang der Schnittlinie A-A in Fig.2. In Fig.3a ist insbesondere die innere Struktur des Riemens 16 und der Riemenscheiben 18a, 18b gezeigt. Ferner ist in Fig.3a die Befestigung der Bearbeitungselemente 14a, 14b an dem Riemen 16 schematisch dargestellt. Die in Fig.3a gezeigten Bearbeitungselemente 14a, 14b im Bereich Z sind in Fig.3b vergrößert dargestellt. 3a shows a sectional view along the section line AA in Fig.2 , In 3a In particular, the internal structure of the belt 16 and pulleys 18a, 18b is shown. Furthermore, in 3a the attachment of the processing elements 14a, 14b the belt 16 shown schematically. In the 3a shown processing elements 14a, 14b in the area Z are in 3b shown enlarged.

Fig.3b zeigt eine vergrößerte Darstellung des Bereichs Z der in Fig.3a gezeigten Schnittdarstellung. Gemäß Fig.3b umfassen die Bearbeitungselemente 14a, 14b jeweils einen Grundkörper 20a, 20b und ein mit dem Grundkörper 20a, 20b verbundenes erstes Verbindungselement 22a, 22b. Ferner ist gemäß Fig.3b jeweils ein mit dem Riemen 16 mittels einer Schraube 30a, 30b verbundenes zweites Verbindungselement 24a, 24b vorgesehen. Wie in Fig.3b schematisch dargestellt, ist das zweite Verbindungselement 24a, 24b komplementär zum ersten Verbindungselement 22a, 22b. Mit Hilfe des ersten und zweiten Verbindungselements 22a, 22b bzw. 24a, 24b können die Bearbeitungselemente 14a, 14b an dem Riemen 16 befestigt werden. 3b shows an enlarged view of the area Z of in 3a shown sectional view. According to 3b The processing elements 14a, 14b each comprise a main body 20a, 20b and a first connecting element 22a, 22b connected to the main body 20a, 20b. Furthermore, according to 3b in each case one with the belt 16 by means of a screw 30a, 30b connected second connecting element 24a, 24b provided. As in 3b schematically illustrated, the second connecting element 24a, 24b is complementary to the first connecting element 22a, 22b. With the aid of the first and second connecting elements 22a, 22b or 24a, 24b, the processing elements 14a, 14b can be fastened to the belt 16.

Ferner ist in Fig.3b gezeigt, dass die Bearbeitungselemente 14a, 14b jeweils ein Werkzeug, vorzugsweise ein Schleifwerkzeug 32a, 32b und ein Halteelement 34a, 34b zum Halten des jeweiligen Schleifwerkzeugs 32a, 32b umfassen. Das Halteelement 34a, 34b und das Schleifwerkzeug 32a, 32b bilden jeweils den Grundkörper 20a, 20b der Bearbeitungselemente 14a, 14b. Ferner ist das Schleifwerkzeug 32a, 32b mit dem Halteelement 34a, 34b jeweils fest verbunden. Das Schleifwerkzeug 32a, 32b dient zum Schleifen der Oberfläche des zu bearbeitenden Werkstücks 12. Ferner umfasst das Schleifwerkzeug 32a, 32b beispielsweise Schleifpapiere oder Schleifvliese.Furthermore, in 3b shown that the processing elements 14a, 14b each comprise a tool, preferably a grinding tool 32a, 32b and a holding member 34a, 34b for holding the respective grinding tool 32a, 32b. The holding element 34a, 34b and the grinding tool 32a, 32b respectively form the main body 20a, 20b of the processing elements 14a, 14b. Further, the grinding tool 32a, 32b is fixedly connected to the holding member 34a, 34b, respectively. The grinding tool 32a, 32b serves for grinding the surface of the workpiece 12 to be machined. Furthermore, the grinding tool 32a, 32b comprises, for example, abrasive papers or abrasive nonwovens.

Anstelle des Schleifwerkzeugs 32a, 32b können die Bearbeitungselemente 14a, 14b jeweils auch ein Bürstenwerkzeug oder ein Polierwerkzeug umfassen. Dabei dient das Bürstenwerkzeug oder Polierwerkzeug zum Bürsten bzw. Polieren der Oberfläche des Werkstücks 12.Instead of the grinding tool 32a, 32b, the processing elements 14a, 14b may each also comprise a brush tool or a polishing tool. The brush tool or polishing tool serves for brushing or polishing the surface of the workpiece 12.

Gemäß Fig.3b umfasst das erste Verbindungselement 22a, 22b der Bearbeitungselemente 14a, 14b einen Drehkörper 26a, 26b. Ferner hat gemäß Fig.3b das zweite Verbindungselement 24a, 24b einen Verbindungsbereich 28a, 28b zum Verbinden mit dem Drehkörper 26a, 26b.According to 3b The first connecting element 22a, 22b of the processing elements 14a, 14b comprises a rotary body 26a, 26b. Furthermore, according to 3b the second connecting member 24a, 24b has a connecting portion 28a, 28b for connecting to the rotary body 26a, 26b.

Wie in Fig.3b schematisch dargestellt, ist der Abstand zwischen zwei benachbarten Bearbeitungselementen 14a, 14b so groß, dass der Grundkörper 20a, 20b bei einer Drehung des Drehkörpers 26a, 26b in eine Drehrichtung parallel zur Oberfläche des Riemens 16 frei drehbar ist. Insbesondere ist die freie Drehbarkeit um einen Drehwinkel innerhalb eines Drehwinkelbereichs von 25° bis 120°, beispielsweise innerhalb eines Drehwinkelbereichs von 35° bis 95°, gegeben. D.h., die zwei benachbarten Bearbeitungselemente 14a, 14b stoßen bei einer Drehung ihres jeweiligen Drehkörpers 26a, 26b nicht aneinander an und können somit einzeln gewechselt werden.As in 3b shown schematically, the distance between two adjacent processing elements 14a, 14b is so large that the base body 20a, 20b in a rotation of the rotary body 26a, 26b in a rotational direction parallel to the surface of the belt 16 is freely rotatable. In particular, the free rotation is given by a rotation angle within a rotation angle range of 25 ° to 120 °, for example within a rotation angle range of 35 ° to 95 °. That is, the two adjacent processing elements 14a, 14b do not abut each other upon rotation of their respective rotary bodies 26a, 26b, and thus can be changed one by one.

Die folgenden Ausführungen beziehen sich auf die Komponenten, die einem der beiden Bearbeitungselemente zugeordnet sind. Für die Komponenten, die einem anderen der Bearbeitungselemente zugeordnet sind, gelten die Ausführungen analog.The following explanations refer to the components that are assigned to one of the two processing elements. For the components that are assigned to another of the processing elements, the statements apply analogously.

Fig.4a zeigt eine schematische Längsschnittdarstellung eines Bearbeitungselements 14a der in Fig.1 gezeigten Vorrichtung 10 mit dem Grundkörper 20a, dem ersten Verbindungselement 22a und dem Drehkörper 26a. Ferner sind in Fig.4a das zweite Verbindungselement 24a mit dem Verbindungsbereich 28a sowie die Komponenten 16 und 30a gezeigt. In der Längsschnittdarsteilung von Fig.4a ist die asymmetrische Anordnung des Drehkörpers 26a relativ zur Längsseite des Grundkörpers 20a gut sichtbar. Die Schleifrichtung P1 ist parallel zur Längsseite des Grundkörpers 20a. 4a shows a schematic longitudinal sectional view of a processing element 14 a of Fig.1 shown device 10 with the main body 20a, the first connecting element 22a and the rotary body 26a. Furthermore, in 4a the second connecting element 24a with the connecting portion 28a and the components 16 and 30a shown. In the longitudinal section of 4a the asymmetrical arrangement of the rotary body 26a is clearly visible relative to the longitudinal side of the main body 20a. The grinding direction P1 is parallel to the longitudinal side of the main body 20a.

Gemäß Fig.4a ist der Drehkörper 26a relativ zur Längsseite des Grundkörpers 20a asymmetrisch an einer dem zweiten Verbindungselement 24a zugewandten Unterseite 38 des Grundkörpers 20a angeordnet. Ferner ist ein erster Abstand L1 des Drehkörpers 26a von einer in Schleifrichtung P1 vorderen Kante 40 des Grundkörpers 20a kleiner als ein zweiter Abstand L2 des Drehköpers 26a von einer in Schleifrichtung P1 hinteren Kante 42 des Grundkörpers 20a. In Fig.4a beziehen sich der erste und zweite Abstand L1, L2 auf eine Drehachse R des Drehkörpers 26a. Wie in Fig.4a gezeigt, erstreckt sich die Schraube 30a durch das zweite Verbindungselement 24a hindurch bis in eine von dem Drehkörper 26a gebildete Aussparung. Diese Aussparung liegt in der Nähe der Mittelachse Q der Schraube 30a.According to 4a is the rotary body 26a relative to the longitudinal side of the main body 20a asymmetrically on a second connecting element 24a facing underside 38 of the main body 20 a arranged. Furthermore, a first distance L1 of the rotary body 26a from a front edge 40 of the main body 20a in the grinding direction P1 is smaller than a second distance L2 of the rotary body 26a from a rear edge 42 of the main body 20a in the grinding direction P1. In 4a The first and second distances L1, L2 are related to a rotation axis R of the rotary body 26a. As in 4a As shown, the screw 30a extends through the second connecting member 24a to a recess formed by the rotary body 26a. This recess is located near the central axis Q of the screw 30a.

Fig.4b zeigt eine schematische Querschnittsdarstellung eines Bearbeitungselements 14a der in Fig.1 gezeigten Vorrichtung 10 mit dem Grundkörper 20a, dem ersten Verbindungselement 22a und dem Drehkörper 26a. Ferner sind in Fig.4b das zweite Verbindungselement 24a mit dem Verbindungsbereich 28a sowie die Komponenten 16 und 30a gezeigt. Die Querseite des Grundkörpers 20a ist senkrecht zu der in Fig.1 gezeigten Schleifrichtung P1. In der Querschnittsdarstellung von Fig.4b ist die Struktur des dreifachen Keilriemens 16 gut sichtbar. Im mittleren Bereich des Riemens 16 sind das zweite Verbindungselement 24a und der Riemen 16 mittels der Schraube 30a verbunden. Insbesondere bezieht sich der mittlere Bereich des Riemens 16 auf die Querausdehnung des Riemens 16. Wie in Fig.4b gezeigt, ist ein Abstand S3 der Mittelachse Q der Schraube 30a von der in Vorschubrichtung P2 vorderen Kante 41 des Grundkörpers 20a gleich einem Abstand S4 der Mittelachse Q der Schraube 30a von der in Vorschubrichtung P2 hinteren Kante 43 des Grundkörpers 20a. Ferner ist in der Querschnittsdarstellung von Fig.4b die asymmetrische Anordnung des Drehkörpers 26a relativ zur Querseite des Grundkörpers 20a gut sichtbar. Die Vorschubrichtung P2 ist parallel zur Querseite des Grundkörpers 20a. 4b shows a schematic cross-sectional view of a processing element 14a of in Fig.1 shown device 10 with the main body 20a, the first connecting element 22a and the rotary body 26a. Furthermore, in 4b the second connecting element 24a with the connecting portion 28a and the components 16 and 30a shown. The transverse side of the main body 20a is perpendicular to the in Fig.1 shown grinding direction P1. In the cross-sectional representation of 4b the structure of the triple V-belt 16 is clearly visible. In the middle region of the belt 16, the second connecting element 24a and the belt 16 are connected by means of the screw 30a. In particular, the central portion of the belt 16 refers to the transverse extent of the belt 16. As in FIG 4b A distance S3 of the center axis Q of the screw 30a from the front edge 41 of the main body 20a in the advancing direction P2 is equal to a distance S4 of the central axis Q of the screw 30a from the rear edge 43 of the main body 20a in the advancing direction P2. Furthermore, in the cross-sectional view of 4b the asymmetrical arrangement of the rotary body 26a relative to the transverse side of the main body 20a clearly visible. The feed direction P2 is parallel to the transverse side of the main body 20a.

Gemäß Fig.4b ist der Drehkörper 26a relativ zur Querseite des Grundkörpers 20a asymmetrisch an einer dem zweiten Verbindungselement 24a zugewandten Unterseite 38 des Grundkörpers 20a angeordnet. Ferner ist ein dritter Abstand L3 des Drehkörpers 26a von der in Vorschubrichtung P2 vorderen Kante 41 des Grundkörpers 20a kleiner als ein vierter Abstand L4 des Drehkörpers 26a von der in Vorschubrichtung P2 hinteren Kante 43 des Grundkörpers 20a. In Fig.4b beziehen sich der dritte und vierte Abstand L3, L4 auf die Drehachse R des Drehkörpers 26a, die relativ zur Mittelachse Q der Schraube 30a um einen Abstand D2 in Vorschubrichtung P2 versetzt ist.According to 4b is the rotary body 26a relative to the transverse side of the main body 20a asymmetrically on a second connecting element 24a facing underside 38 of the main body 20 a arranged. Furthermore, a third distance L3 of the rotary body 26a from the front edge 41 of the main body 20a in the feed direction P2 is smaller than a fourth distance L4 of the rotary body 26a from the rear edge 43 of the main body 20a in the advancing direction P2. In 4b The third and fourth distances L3, L4 refer to the rotational axis R of the rotary body 26a, which is offset relative to the central axis Q of the screw 30a by a distance D2 in the feed direction P2.

In der Querschnittsdarstellung von Fig.4b sind zwei Stifte 36a, 36b zum Halten des zweiten Verbindungselements 24a gut sichtbar. Wie in Fig.4b gezeigt, sind die zwei Stifte 36a, 36b im Randbereich des Riemens 16 auf zwei gegenüberliegenden Seiten des Verbindungsbereichs 28a angeordnet. Die zwei Stifte 36a, 36b erstrecken sich jeweils durch das zweite Verbindungselement 24a bis in den Riemen 16, so dass das zweite Verbindungselement 24a gegenüber dem Riemen 16 verdrehsicher gehalten ist.In the cross-sectional representation of 4b For example, two pins 36a, 36b are clearly visible for holding the second connector 24a. As in 4b As shown, the two pins 36a, 36b are arranged in the edge region of the belt 16 on two opposite sides of the connecting portion 28a. The two pins 36a, 36b respectively extend through the second connecting element 24a into the belt 16, so that the second connecting element 24a is held against rotation relative to the belt 16.

Bezugnehmend auf Fig.4a und Fig.4b sind die Schraube 30a und die zwei Stifte 36a, 36b in einer Linie senkrecht zur Schleifrichtung P1 angeordnet. Insbesondere liegen die Schraube 30a und die zwei Stifte 36a, 36b in der in Fig.4b gezeigten, gemeinsamen Schnittebene.Referring to 4a and 4b For example, the screw 30a and the two pins 36a, 36b are arranged in a line perpendicular to the grinding direction P1. In particular, the screw 30a and the two pins 36a, 36b are in the in 4b shown, common cutting plane.

Fig.5 zeigt eine schematische Unteransicht eines Bearbeitungselements 14a der in Fig.1 gezeigten Vorrichtung 10 mit dem zweiten Verbindungselement 24a. Die in Fig.4b gezeigte Querschnittsdarstellung entspricht einer Schnittdarstellung entlang der Schnittlinie B-B in Fig.5. In der Unteransicht von Fig.5 ist der oberhalb des zweiten Verbindungselements 24a angeordnete Abschnitt des Riemens 16 durch gerade, gestrichelte Linien dargestellt. Durch die senkrecht dazu verlaufenden Punktlinien ist der Grundkörper 20a angedeutet. Ferner sind in Fig.5 der Verbindungsbereich 28a im zweiten Verbindungselement 24a sowie der von dem Verbindungsbereich 28a aufgenommene Drehkörper 26a durch gebogene, gestrichelte Linien dargestellt. Die Schleifrichtung P1 ist parallel zur Längsausdehnung des Riemens 16. Ferner ist die Vorschubrichtung P2 parallel zur Querausdehnung des Riemens 16. Wie in Fig.5 gezeigt, ist der Drehkörper 26a in eine erste Drehrichtung R1 und in eine der ersten Drehrichtung R1 entgegengesetzte zweite Drehrichtung R2 drehbar. Vorzugsweise ist der Drehkörper 26a in die auch als Festdrehrichtung bezeichnete erste Drehrichtung R1 festdrehbar. Bezug nehmend auf Fig.5 entspricht die erste Drehrichtung R1 einer negativen Drehrichtung, während die zweite Drehrichtung R2 einer positiven Drehrichtung entspricht. In Fig.5 ist insbesondere die um den Abstand D2 in Schleifrichtung P1 bzw. in Vorschubrichtung P2 versetzte Drehachse R des Drehkörpers 26a gezeigt. Vorzugsweise beträgt dieser Abstand D2 4 mm. Figure 5 shows a schematic bottom view of a processing element 14 a of Fig.1 shown device 10 with the second connecting element 24a. In the 4b shown cross-sectional view corresponds to a sectional view along the section line BB in Figure 5 , In the bottom view of Figure 5 the portion of the belt 16 located above the second connecting element 24a is shown by straight, dashed lines. By perpendicularly extending dot lines of the main body 20a is indicated. Furthermore, in Figure 5 the connection area 28a in second connecting member 24a as well as the received from the connecting portion 28a rotary body 26a represented by curved, dashed lines. The grinding direction P1 is parallel to the longitudinal extent of the belt 16. Further, the feed direction P2 is parallel to the transverse dimension of the belt 16. As in FIG Figure 5 2, the rotary body 26a is rotatable in a first rotational direction R1 and in a second rotational direction R2 opposite to the first rotational direction R1. Preferably, the rotary body 26a in the designated also as a fixed direction of rotation first rotational direction R1 is firmly rotatable. Referring to Figure 5 the first direction of rotation R1 corresponds to a negative direction of rotation, while the second direction of rotation R2 corresponds to a positive direction of rotation. In Figure 5 In particular, the axis of rotation R of the rotary body 26a offset by the distance D2 in the grinding direction P1 or in the feed direction P2 is shown. This distance D2 is preferably 4 mm.

Die in Fig.5 gezeigte Position des Drehkörpers 26a entspricht einem verbundenen, d.h. festgedrehten Zustand des Drehkörpers 26a. Der verbundene Zustand des Drehkörpers 26a wird dadurch erreicht, dass der Drehkörper 26a in die erste Drehrichtung R1 gedreht wird. Ferner verlässt der Drehkörper 26a seinen verbundenen Zustand, wenn der Drehkörper 26a in die zweite Drehrichtung R2 gedreht wird. Somit kann bei einer Drehung des Drehkörpers 26a in die erste und zweite Drehrichtung R1, R2 der Drehkörper 26a mit dem Verbindungsbereich 28a verbunden bzw. von diesem getrennt werden. Die Drehung erfolgt dabei jeweils manuell.In the Figure 5 shown position of the rotary body 26a corresponds to a connected, ie firmly rotated state of the rotary body 26a. The connected state of the rotary body 26a is achieved by rotating the rotary body 26a in the first rotational direction R1. Further, the rotary body 26a leaves its connected state when the rotary body 26a is rotated in the second rotational direction R2. Thus, upon rotation of the rotary body 26a in the first and second rotational directions R1, R2, the rotary body 26a can be connected to and separated from the connecting portion 28a. The rotation is done manually.

Sofern sich der Drehkörper 26a im verbundenen Zustand befindet, verhindert das aufgrund des Schleifprozesses herrschende Drehmoment M, dass der Drehkörper 26a seinen verbundenen Zustand verlässt. Das in Fig.5 gezeigte Drehmoment M entspricht dabei einer Drehwirkung auf den Drehkörper 26a in die erste Drehrichtung R1. Ferner wird das Drehmoment M während des Schleifprozesses durch die quer oder schräg zur Schleifrichtung P1 wirkenden Kräfte verursacht, die an der Oberfläche des Grundkörpers 20a angreifen. Diese Kräfte werden über den Grundkörper 20a auf den Drehkörper 26a übertragen. Durch die anhand von Fig.4a, 4b und 5 beschriebene asymmetrische Anordnung des Drehkörpers 26a ergibt sich eine resultierende Kraft F auf den Drehkörper 26a. Die in Fig.5 gezeigte resultierende Kraft F greift an der Kante 50 des Drehkörpers 26a an und bewirkt das Drehmoment M. Gemäß der in Fig.5 gezeigten Krafteinwirkung ist der Vektor des Drehmoments M senkrecht zur Oberfläche des Riemens 16 und zeigt in Fig.5 in die Papierebene hinein. Ferner liegt der in Fig.5 gezeigte Vektor des Drehmoments M auf der Drehachse R des Drehkörpers 26a. Somit kann allein aufgrund des Schleifprozesses und der asymmetrischen Anordnung des Drehkörpers 26a der verbundene Zustand des Drehkörpers 26a gehalten werden.If the rotary body 26a is in the connected state, the torque M prevailing due to the grinding process prevents the rotary body 26a from leaving its connected state. This in Figure 5 shown torque M corresponds to a rotational action on the rotary body 26a in the first direction of rotation R1. Further, the torque M is caused during the grinding process by the forces acting transversely or obliquely to the grinding direction P1, that at the surface of the main body 20a attack. These forces are transmitted to the rotary body 26a via the main body 20a. By the basis of Fig.4a, 4b and 5 described asymmetric arrangement of the rotary body 26a results in a resultant force F on the rotary body 26a. In the Figure 5 shown resultant force F acts on the edge 50 of the rotary body 26a and causes the torque M. According to the in Figure 5 The force shown is the vector of the torque M perpendicular to the surface of the belt 16 and shows in Figure 5 into the paper plane. Furthermore, the in Figure 5 shown vector of the torque M on the rotation axis R of the rotary body 26a. Thus, only due to the grinding process and the asymmetrical arrangement of the rotating body 26a, the connected state of the rotating body 26a can be held.

Fig.6 zeigt eine schematische, perspektivische Ansicht des in Fig.4a bzw. 4b gezeigten Bearbeitungselements 14a zur Darstellung des Umrisses des Drehkörpers 26a. Wie in Fig.6 gezeigt, ist der Drehkörper 26a an der Unterseite 38 des Grundkörpers 20a angeordnet. Insbesondere sind der Drehkörper 26a und der Grundkörper 20a zusammen einstückig ausgebildet. Ferner ist in Fig.6 der schneckenförmige Umriss des Drehkörpers 26a gut sichtbar. Der in Fig.6 gezeigte Drehkörper 26a hat eine Seitenwand, die relativ zur Unterseite 38 des Grundkörpers 20a geneigt ist. Der Neigungswinkel ist dabei kleiner als 90°. In Fig.6 ist dieser Neigungswinkel nicht dargestellt. Figure 6 shows a schematic, perspective view of the in 4a or 4b shown processing element 14a for illustrating the outline of the rotary body 26a. As in Figure 6 As shown, the rotary body 26a is disposed on the underside 38 of the main body 20a. In particular, the rotary body 26a and the main body 20a are integrally formed together. Furthermore, in Figure 6 the helical outline of the rotating body 26a clearly visible. The in Figure 6 shown rotating body 26a has a side wall which is inclined relative to the underside 38 of the main body 20a. The inclination angle is less than 90 °. In Figure 6 this angle of inclination is not shown.

Fig.7 zeigt eine schematische, perspektivische Ansicht des in Fig.4a bzw. 4b gezeigten zweiten Verbindungselements 24a zur Darstellung des Verbindungsbereichs 28a. Der in Fig.7 gezeigte Verbindungsbereich 28a dient zur Verbindung desselben mit dem in Fig.6 gezeigten Drehkörper 26a mit dem schneckenförmigen Umriss. Wie in Fig.7 gezeigt, ist der Verbindungsbereich 28a durch eine Ausnehmung 44 in dem zweiten Verbindungselement 24a gebildet. Die Seitenwand 46 der Ausnehmung 44 ist in Richtung des inneren der Ausnehmung 44 geneigt. Ferner ist in Fig.7 gezeigt, dass das zweite Verbindungselement 24a ein Durchgangsloch 52 im mittleren Bereich des zweiten Verbindungselements 24a und zwei Durchgangslöcher 54a, 54b im Randbereich des zweiten Verbindungselements 24a auf zwei gegenüberliegenden Seiten des Verbindungsbereichs 28a hat. Das Durchgangsloch 52 dient zur Aufnahme der in Fig.4a und 4b gezeigten Schraube 30a, während die Durchgangslöcher 54a, 54b zur Aufnahme der in Fig.4b gezeigten Stifte 36a, 36b dienen. Figure 7 shows a schematic, perspective view of the in 4a or 4b second connecting element 24a shown to illustrate the connecting portion 28a. The in Figure 7 shown connecting portion 28a is used to connect the same with the in Figure 6 shown rotary body 26a with the helical outline. As in Figure 7 As shown, the connection portion 28a is formed by a recess 44 in the second connection member 24a. The side wall 46 of the recess 44 is inclined in the direction of the inner of the recess 44. Furthermore, in Figure 7 shown that the second connection element 24a has a through-hole 52 in the middle region of the second connection element 24a and two through-holes 54a, 54b in the edge region of the second connection element 24a on two opposite sides of the connection region 28a. The through hole 52 serves to receive the in 4a and 4b shown screw 30a, while the through holes 54a, 54b for receiving the in 4b shown pins 36a, 36b serve.

Fig.8 zeigt eine schematische Unteransicht des in Fig.7 gezeigten zweiten Verbindungselements 24a. In Fig.8 ist die Anordnung der Durchgangslöcher 52 und 54a, 54b gut sichtbar. Ferner ist in Fig.8 die Anordnung des Verbindungsbereichs 28a relativ zur Oberfläche des zweiten Verbindungselements 24a schematisch dargestellt. Die Mittelachse Q' des Durchgangslochs 52 hat einen Abstand S1' von einer in Schleifrichtung P1 vorderen Kante 58 des zweiten Verbindungselements 24a, während die Mittelachse Q' des Durchgangslochs 52 von einer in Schleifrichtung P1 hinteren Kante 56 des zweiten Verbindungselements 24a einen Abstand S2' hat. Ferner ist der in Fig.8 gezeigte Verbindungsbereich 28a zum Drehkörper 26a komplementär. Somit können der Verbindungsbereich 28a und der Drehkörper 26a sicher miteinander verbunden werden. Figure 8 shows a schematic bottom view of the in Figure 7 shown second connecting element 24a. In Figure 8 For example, the arrangement of the through-holes 52 and 54a, 54b is clearly visible. Furthermore, in Figure 8 the arrangement of the connecting portion 28a relative to the surface of the second connecting member 24a shown schematically. The center axis Q 'of the through-hole 52 has a distance S1' from a leading edge 58 of the second connecting element 24a in the grinding direction P1, while the center axis Q 'of the through-hole 52 is at a distance S2' from a rear edge 56 of the second connecting element 24a in the direction of grinding P1 , Furthermore, the in Figure 8 shown connecting portion 28a to the rotary body 26a complementary. Thus, the connection portion 28a and the rotary body 26a can be securely connected to each other.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1010
Vorrichtungcontraption
1212
Werkstückworkpiece
14a, 14b14a, 14b
Bearbeitungselementprocessing element
1616
Riemenbelt
18a, 18b18a, 18b
Riemenscheibepulley
20a, 20b20a, 20b
Grundkörperbody
22a, 22b, 24a, 24b22a, 22b, 24a, 24b
Verbindungselementconnecting element
26a, 26b26a, 26b
Drehkörperrotating body
28a, 28b28a, 28b
Verbindungsbereichconnecting area
30a, 30b30a, 30b
Schraubescrew
32a, 32b32a, 32b
Schleifwerkzeuggrinding tool
34a, 34b34a, 34b
Halteelementretaining element
36a, 36b36a, 36b
Stiftpen
38, 6038, 60
Unterseitebottom
40, 41, 42, 43, 56, 5840, 41, 42, 43, 56, 58
Kanteedge
4444
Ausnehmungrecess
4646
SeitenwandSide wall
5050
Kanteedge
52, 54a, 54b52, 54a, 54b
DurchgangslochThrough Hole
P1 bis P3, R1, R2P1 to P3, R1, R2
Richtungdirection
Q, Q', RQ, Q ', R
Achseaxis
L1 bis L4, S3, S4, D2, S1', S2'L1 to L4, S3, S4, D2, S1 ', S2'
Abstanddistance
FF
Kraftforce
MM
Drehmomenttorque

Claims (15)

  1. An apparatus (10) for machining a workpiece (12),
    with at least two machining elements (14a, 14b),
    with a rotating belt (16) for moving the machining elements (14a, 14b) relative to a workpiece (12) to be machined;
    wherein the machining elements (14a, 14b) each comprise a main body (20a, 20b) and a first connecting element (22a, 22b) connected to the main body (20a, 20b), which first connecting element is connectable to a second connecting element (24a, 24b) which is complementary to the first connecting element (22a, 22b) and connected to the belt (16),
    characterized in that the first connecting element (22a, 22b) comprises a rotary body (26a, 26b) and the second connecting element (24a, 24b) has a connection area (28a, 28b) for connection with the rotary body (26a, 26b),
    wherein when the rotary body (26a, 26b) is rotated in a first rotary direction (R1) a connection of the rotary body (26a, 26b) with the connection area (28a, 28b) is established, and
    wherein the rotary body (26a, 26b) is separated from the connection area (28a, 28b) when the rotary body (26a, 26b) is rotated in a second rotary direction (R2) opposed to the first rotary direction (R1), and
    wherein the rotary body (26a, 26b) is arranged relative to the main body (20a, 20b) and connected to the latter in such a manner that during machining of the workpiece (12) a resulting force is exerted on the rotary body (26a, 26b) via the main body (20a, 20b), which provides a torque for a rotation of the rotary body (26a, 26b) in the first rotary direction (R1).
  2. The apparatus (10) according to claim 1, characterized in that the rotary body (26a, 26b) and the main body (20a, 20b) are formed together as one piece.
  3. The apparatus (10) according to claim 1 or 2, characterized in that the rotary body (26a, 26b) is arranged asymmetrically relative to a longitudinal side of the main body (20a, 20b) and/or relative to a transverse side of the main body (20a, 20b) on a bottom side (38) of the main body (20a, 20b) facing the second connecting element (24a, 24b).
  4. The apparatus (10) according to claim 3, characterized in that a first distance (L1) between the rotary body (26a, 26b) and a front edge (40) of the main body (20a) with respect to the grinding direction (P1) is smaller than a second distance (L2) between the rotary body (26a, 26b) and a rear edge (42) of the main body (20a, 20b) with respect to the grinding direction (P1), and that a third distance (L3) between the rotary body (26a, 26b) and a front edge (41) of the main body (20a) with respect to the feed direction (P2) is smaller than a fourth distance (L4) between the rotary body (26a, 26b) and a rear edge (43) with respect to the feed direction (P2).
  5. The apparatus (10) according to one of claims 1 to 4, characterized in that the connection area (28a, 28b) is formed by a recess (44) in the second connecting element (24a, 24b).
  6. The apparatus (10) according to claim 5, characterized in that the side wall (46) of the recess (44) is inclined in a direction towards the inside of the recess (44).
  7. The apparatus (10) according to one of claims 1 to 6, characterized by a transport device for generating a relative movement between the workpiece (12) to be machined and the machining elements (14a, 14b).
  8. The apparatus (10) according to claim 7, characterized in that the belt (16) is formed such that the machining elements (14a, 14b) are moved in the area of the workpiece (12) to be machined in a first translatory direction of movement (P1), that the transport device is designed such that the workpiece (12) is moved in a second translatory direction of movement (P2), and that an angle between the first translatory direction of movement (P1) and the second translatory direction of movement (P2) is different to 0° and 180°.
  9. The apparatus (10) according to one of claims 1 to 8, characterized in that the second connecting element (24a, 24b) and the belt (16) are connected to each other in the central area of the belt (16) by means of a screw (30a, 30b).
  10. The apparatus (10) according to claim 9, characterized in that the second connecting element (24a, 24b) is mounted in a rotationally fixed manner with regard to the belt (16) by means of two studs (36a, 36b) and that the two studs (36a, 36b) are arranged in the peripheral area of the belt (16) on two opposite sides of the connection area (28a, 28b).
  11. The apparatus (10) according to one of claims 1 to 10, characterized in that the machining elements (14a, 14b) are arranged in a spaced apart manner in such a way that the main body (20a, 20b) is freely rotatable about a rotary angle within at least a rotary angle range of 25° to 120° when the rotary body (26a, 26b) is rotated in the first rotary direction (R1) or in the second rotary direction (R2), respectively.
  12. The apparatus (10) according to one of claims 1 to 11, characterized in that the main body (20a, 20b) is in a mounted state after the rotary body (26a, 26b) has been connected with the connection area (28a, 28b), that the main body (20a, 20b) is in a dismounted state after the rotary body (26a, 26b) has been separated from the connection area (28a, 28b), and that the first connecting element (22a, 22b) and the second connecting element (24a, 24b) are connectable without the aid of screws and are designed such that a change between the mounted state and the dismounted state of the main body (20a, 20b) is effected manually.
  13. The apparatus (10) according to one of claims 1 to 12, characterized in that the belt (16) is a V-belt which is turned about two pulleys (18a, 18b) and guided endlessly.
  14. The apparatus (10) according to one of claims 1 to 13, characterized in that the machining elements (14a, 14b) each comprise a grinding tool (32a, 32b), a brushing tool, or a polishing tool.
  15. A machining element (14a, 14b) for use in an apparatus (10) according to one of the preceding claims,
    with a main body (20a, 20b) and a first connecting element (22a, 22b) connected to the main body (20a, 20b) which first connecting element is connectable to a second connecting element (24a, 24b) of the apparatus (10) complementary to the first connecting element (22a, 22b),
    characterized in that the first connecting element (22a, 22b) comprises a rotary body (26a, 26b) which is connectable to a connection area (28a, 28b) of the second connecting element (24a, 24b) of the apparatus (10),
    wherein when the rotary body (26a, 26b) is rotated in a first rotary direction (R1) the rotary body (26a, 26b) is connected to the connection area (28a, 28b),
    wherein when the rotary body (26a, 26b) is rotated in the second rotary direction (R2) opposed to the first rotary direction (R1) the rotary body (26a, 26b) is separated from the connection area (28a, 28b), and
    wherein the rotary body (26a, 26b) is arranged relative to the main body (20a, 20b) and connected with the latter in such a manner that during a predetermined relative movement for machining a workpiece (12) a resulting force is exerted on the rotary body (26a, 26b) via the main body (20a, 20b) which force provides a torque for rotating the rotary body (26a, 26b) in the first rotary direction (R1).
EP16174888.4A 2015-06-24 2016-06-17 Device for treating a workpiece Active EP3108999B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015110115.7A DE102015110115A1 (en) 2015-06-24 2015-06-24 Device for processing a workpiece

Publications (3)

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EP3108999A2 EP3108999A2 (en) 2016-12-28
EP3108999A3 EP3108999A3 (en) 2017-03-01
EP3108999B1 true EP3108999B1 (en) 2017-12-27

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EP16174888.4A Active EP3108999B1 (en) 2015-06-24 2016-06-17 Device for treating a workpiece

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EP (1) EP3108999B1 (en)
DE (1) DE102015110115A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014115778A1 (en) * 2014-10-30 2016-05-04 Lissmac Maschinenbau Gmbh Machining element for machining a profile-shaped or flat metallic workpiece and wall-shaped support device with a plurality of processing elements mounted thereon
IT201700035961A1 (en) * 2017-03-31 2018-10-01 Surfaces Tech Abrasives S P A PLANT FOR TREATING THE SLABS
DE102018106347A1 (en) 2018-03-19 2019-09-19 Boeck Gmbh CONNECTION DEVICE
US10828741B1 (en) * 2020-05-22 2020-11-10 Royce McFadden Wood sander

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US3410032A (en) * 1965-10-21 1968-11-12 Wesley C. Meinerding Abrasive belt mechanism
US4971022A (en) * 1990-04-23 1990-11-20 Blount, Inc. Cutting chain for aggregate materials
US5913605A (en) * 1997-09-17 1999-06-22 G. H. Hensley Industries, Inc. Rotary lock system for wear runner assembly
EP1562723B1 (en) * 2002-10-31 2014-01-08 LISSMAC Maschinenbau GmbH Device and method for machining workpieces
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
WO2008149369A1 (en) * 2007-06-06 2008-12-11 No Screw Ltd. Attachment mechanism
DE102008016944A1 (en) * 2008-04-01 2009-10-08 Lissmac Maschinenbau Und Diamantwerkzeuge Gmbh Device for processing workpieces
DE102009055974A1 (en) * 2009-11-27 2011-06-01 Lissmac Maschinenbau Gmbh Processing station and device for processing a workpiece
EP2792450B1 (en) * 2013-04-19 2015-12-30 Arku Maschinenbau Gmbh Machine for deburring

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Also Published As

Publication number Publication date
EP3108999A3 (en) 2017-03-01
DE102015110115A1 (en) 2016-12-29
EP3108999A2 (en) 2016-12-28
US20160375541A1 (en) 2016-12-29
US11260492B2 (en) 2022-03-01

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