EP3294494B2 - Bandfinishvorrichtung - Google Patents

Bandfinishvorrichtung Download PDF

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Publication number
EP3294494B2
EP3294494B2 EP17714442.5A EP17714442A EP3294494B2 EP 3294494 B2 EP3294494 B2 EP 3294494B2 EP 17714442 A EP17714442 A EP 17714442A EP 3294494 B2 EP3294494 B2 EP 3294494B2
Authority
EP
European Patent Office
Prior art keywords
finishing
belt
separating
cutting
drive
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
Application number
EP17714442.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3294494A1 (de
EP3294494B1 (de
Inventor
Michael Huber
Simon Wolber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Supfina Grieshaber GmbH and Co KG
Original Assignee
Supfina Grieshaber GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Application filed by Supfina Grieshaber GmbH and Co KG filed Critical Supfina Grieshaber GmbH and Co KG
Publication of EP3294494A1 publication Critical patent/EP3294494A1/de
Application granted granted Critical
Publication of EP3294494B1 publication Critical patent/EP3294494B1/de
Publication of EP3294494B2 publication Critical patent/EP3294494B2/de
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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
    • B24B21/004—Machines or devices using grinding or polishing belts; Accessories therefor using abrasive rolled strips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/02—Machines or devices using grinding or polishing belts; Accessories therefor for grinding rotationally symmetrical surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/18—Accessories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/36—Single-purpose machines or devices
    • B24B5/42—Single-purpose machines or devices for grinding crankshafts or crankpins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D15/00—Hand tools or other devices for non-rotary grinding, polishing, or stropping
    • B24D15/02—Hand tools or other devices for non-rotary grinding, polishing, or stropping rigid; with rigidly-supported operative surface
    • B24D15/023—Hand tools or other devices for non-rotary grinding, polishing, or stropping rigid; with rigidly-supported operative surface using in exchangeable arrangement a layer of flexible material
    • B24D15/026—Hand tools or other devices for non-rotary grinding, polishing, or stropping rigid; with rigidly-supported operative surface using in exchangeable arrangement a layer of flexible material able to be stripped-off from a built-in delivery spool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/24—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with another disc cutter
    • B26D1/245—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with another disc cutter for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B26D2001/0046—Cutting members therefor rotating continuously about an axis perpendicular to the edge

Definitions

  • the invention relates to a belt finishing device, comprising a guide device for guiding the finishing belt, a rotary drive for the rotary drive of a workpiece to be finished to be machined around its workpiece axis and an oscillation drive by means of which the finishing belt and the workpiece can be driven to oscillate relative to one another in a direction parallel to the workpiece axis , wherein a finishing belt supply is provided for the finishing belt, from which the finishing belt can be fed to a work area and from there to a collecting area.
  • the finishing processing of a workpiece is a process for surface processing of a workpiece, also known as "superfinishing” or “superfinishing process”.
  • an abrasive finishing tool in the form of a finishing stone or a finishing tape
  • the workpiece surface to be machined rotates.
  • the rotation of the workpiece surface to be machined is superimposed on an oscillating movement in which the finishing tool and the workpiece surface to be machined move relative to one another in directions parallel to the axis of rotation.
  • a tape finishing device is, for example, from US Pat DE 10 2014 213 194 A1 known.
  • To handle the finishing tape supply rolls are used, from which fresh finishing tape is unwound and fed to the work area.
  • the active surface wears out, so that fresh finishing belt sections are supplied from the supply at predefinable intervals.
  • Worn / used finishing tape sections are fed from the work area to a collecting area and there wound onto a collecting roll to be disposed of later.
  • the present invention is based on the object of simplifying the handling of the finishing belt.
  • a separating device is provided in the collecting area, which separates finishing belt sections with a motor-driven separating element.
  • separating the finishing tape sections they can be collected more easily and disposed of more easily compared to winding a complete finish tape onto a collecting roll.
  • the motor-driven separating element makes it possible to control the separating device as required without manual intervention being necessary.
  • the separating device according to the invention is arranged in the collecting area of the tape finishing device, it is possible to operate the separating device without interrupting the production operation of the tape finishing device, that is to say the finishing machining of a workpiece surface. It is possible to use the cutting device comparatively frequently, so that comparatively short finishing tape sections can be cut off, for example finishing tape sections whose maximum length is only 100 mm. These short finishing tape sections can be collected and disposed of in a simple manner, regardless of the state of consumption of the supply roll for fresh finishing tape.
  • the separating device has two separating elements in the form of separating disks, which interact in a separating area.
  • Such a separating device enables a particularly reliable separation of finishing tape sections in a locally limited and thus clearly defined separating area.
  • the cutting disks comprise a grooving knife disk and a circular knife disk. These disks rotate in opposite directions of rotation and are in engagement with one another in such a way that the circular cutting edge engages the groove area of a grooving knife disk with a circumferential cutting edge. In this area of engagement, the two disks are in contact with one another so that the finishing tape to be cut can neither escape nor be crushed.
  • the cutting disks are each coupled in terms of movement to a frictional engagement element, and if the frictional engagement elements are in frictional engagement with one another in order to transmit a rotational movement of the cutting disks. In this way, the rotary movement can be transmitted from one cutting wheel to the other cutting wheel. As a result of the contact between the frictional engagement elements, the frictional engagement elements move at the same speed in the area of the frictional engagement. It is therefore preferred if the frictional engagement elements are disk-shaped and have cylindrical frictional engagement surfaces, their distance from the respective axis of rotation is identical relative to each other. In this way it is possible to drive the cutting disks in a simple manner at the same speed of rotation.
  • cylindrical frictional engagement surfaces have a radius which at least substantially corresponds to the radius of the cutting disks. This enables a comparatively simple construction of the separating device. In addition, there are further advantages in connection with the embodiments of the invention described below.
  • the frictional engagement elements are arranged adjacent to the separating area, viewed in the direction of the finish belt. In this way, the torque is transmitted immediately adjacent to the separation area.
  • the frictional engagement elements have frictional engagement surfaces which act as clamping surfaces for the finishing belt.
  • the frictional engagement surfaces fulfill a further function, namely the fixing of a finishing tape to be severed between the frictional engagement surfaces.
  • the cutting speed across the width of the finishing belt corresponds at least approximately to the feed speed of the finishing belt viewed in the width direction of the finishing belt.
  • the finishing belt is clamped and fixed in such a way that the finishing belt is not exposed to any further driving forces during the cutting process, i.e. is neither attracted too quickly with respect to the cutting device nor pushed off in the opposite direction.
  • a collecting container for collecting separated finishing belt sections is advantageously arranged in the collecting area.
  • Such a collecting container does not necessarily have to be able to accommodate finishing tape sections of a complete supply roll. It can also be a small, light and therefore easier to handle collecting container.
  • the collecting container can be, for example, a collecting channel.
  • the collecting container can be arranged in a stationary manner on the tape finishing device, so that it cannot be moved with respect to a machine frame of the tape finishing device.
  • the collecting container is arranged movably within the collecting area, for example along a movement axis running parallel to a workpiece axis.
  • finishing tape For a simple construction of the tape finishing device, it is preferred if the finishing tape to be cut runs in a vertical direction in the collecting area. Such a finishing tape can be severed particularly easily, in particular when the severing device according to the invention is effective in a horizontal severing plane.
  • the cutting device is arranged in a stationary manner in relation to a machine frame of the tape finishing device.
  • a feed speed of the finishing belt in a direction parallel to the workpiece axis is at least approximately equal to a cutting speed of the cutting device across the width of the finishing belt. In this way, the finishing belt is not exposed to any further driving forces during the severing process, that is to say it is neither attracted too quickly in relation to the severing device nor repelled in the opposite direction.
  • a feed device is provided, by means of which the separating device can be moved in a direction parallel to the workpiece axis.
  • the cutting device (possibly with a collecting container connected to it) can be moved parallel to the workpiece axis so that a finishing belt can be cut completely independently of the advance and the position of a guide device for guiding the finishing belt in the work area.
  • a feed speed of the feed device is at least approximately equal to a cutting speed of the cutting device across the width of the finishing belt.
  • the finishing belt is not exposed to any further driving forces during the severing process, that is to say it is neither attracted too quickly in relation to the severing device nor repelled in the opposite direction.
  • the feed device may comprise a stationary drive device, that is to say for example a motor which is stationary in relation to the machine frame of the tape finishing device.
  • the drive movement of such a motor can be transmitted to the separating device via gear parts (e.g. a drive belt).
  • the feed device is preferably a linear drive, for example an electric linear motor, the rotor of which is connected to the separating device.
  • the linear drive is, in particular, a pneumatic cylinder without a piston rod.
  • a drive device which can be moved together with the separating device, for example a rotary drive which is arranged on the separating device and which drives a gearwheel.
  • the toothed wheel meshes with a toothed rack which extends parallel to the axis of movement of the, so that the rotary movement of the toothed wheel is converted into a feed movement of the separating device along the axis of movement becomes.
  • a gear device for converting a feed movement of the separating device into a drive movement of the separating element.
  • the transmission device comprises, for example, a gearwheel which is coupled in a rotationally fixed manner to a separating element and which is driven by a drive gearwheel.
  • the drive gear is driven, for example, directly by a rotary drive mentioned above or by engagement in a rack extending parallel to the axis of movement of the separating device.
  • an advance movement of the separating device is accompanied by a rotary movement of the separating element.
  • the drive device of the feed device thus acts as a motor drive for the separating element.
  • the device 10 comprises a machine frame 12 for the arrangement of a rotary drive 14 and an oscillation drive 16.
  • the rotary drive 14 is used to drive a workpiece 18 in a rotary manner about a workpiece axis 20.
  • the oscillation drive 16 serves to superimpose an oscillating movement on this rotational movement of the workpiece 18. During this oscillating movement, the workpiece 18 moves back and forth in a direction parallel to the workpiece axis 20.
  • the workpiece surface to be finished can be, for example, the circumferential surface of a crank pin 22.
  • the belt finishing device 10 For the finishing machining of a workpiece surface, the belt finishing device 10 comprises a finishing belt 24, which is supplied from a finishing belt supply 26, for example a supply roll.
  • a guide device 28 is provided for guiding the finishing belt 24. This includes, in a manner known per se, pressing elements which press the finishing belt 24 in a work area 30 against the workpiece surface to be finished.
  • Used finishing tape passes out of the work area 30 to a collecting area 32.
  • a separating device 34 is arranged in this collecting area.
  • the separating device 34 prefferably be arranged in a stationary manner with respect to the machine frame 12.
  • the finishing belt 24 can be advanced transversely to its direction (i.e. in the width direction of the finishing belt) in the area of the separating device 34 by moving the guide devices 28 parallel to the workpiece axis 20, for example by means of a slide 36.
  • a tape finishing device 10 usually has a plurality of guide devices 28 which are arranged parallel to one another so that, viewed along the workpiece axis 20, several finishing tapes 24 can be brought into engagement with different workpiece surfaces of a workpiece 18 at the same time.
  • the separating device 34 is guided and movable along a guide device 38 along a movement axis 40.
  • the movement axis 40 extends parallel to the workpiece axis 20.
  • the guide device 38 has a rail-shaped base body 42.
  • the base body 42 serves to arrange a feed device 44 in the form of a linear drive 46.
  • the linear drive 46 serves to drive a rotor 48, which carries the separating device 34, along the movement axis 40.
  • the separating device 34 has two separating elements 50 and 52, which are designed in the form of two separating disks 54 and 56.
  • the cutting disks 54 and 56 interact with respective cutting edges in a cutting area 58.
  • One of the cutting edges is formed in that the cutting disk 54 is designed as a circular knife disk.
  • the other cutting edge is formed in that the cutting disk 56 is designed as a grooving knife disk.
  • the cutting disks 50 and 52 rotate about mutually parallel axes of rotation 64 and 66, which are oriented parallel to a direction 68 of the finishing belt 24 in the collecting area 32.
  • a compression spring 70 is provided to generate a pressing force in a direction parallel to the direction 68. These presses the cutting edge of the cutting disk 54 against the cutting edge of the cutting disk 56.
  • Bearing bodies 72, 74 are provided for the rotary mounting of the cutting disks 54, 56 about the axes of rotation 64, 66. These are each connected to carriages 76, 78, which can be moved relative to carriage carriers 80, 82 along carriage axes 84, 86.
  • the slide axes 84, 86 are aligned parallel to one another; in particular, the axes 84 and 86 are aligned with one another.
  • the axes 84 and 86 are oriented perpendicular to the axes of rotation 64 and 66 and perpendicular to the workpiece axis 20.
  • the carriages 76, 78 are acted upon by force parallel to the carriage axes 84, 86 by means of tension springs 88 in the direction towards one another.
  • a corresponding counterforce is generated in an area 90 in which two frictional engagement elements 91 and 92 abut one another in a frictionally engaged manner.
  • the frictional engagement elements 91 and 92 are each coupled to one of the separating disks 54, 56 in a rotationally fixed manner.
  • the frictional engagement elements 91, 92 have cylindrical frictional engagement surfaces 94, 96 which are in frictional contact with one another in the region 90.
  • the frictional engagement surfaces 94, 96 are made, for example, from a plastic, in particular from Vulkollan®.
  • the region 90 is arranged directly adjacent to the separating region 58, as seen along the direction 68 of the finishing belt 24.
  • a gear device 98 which translates a movement of the cutting device 34 along the movement axis 40 into a drive movement of the cutting disks 54, 56.
  • the gear mechanism 98 comprises a toothed rack 100 fixedly connected to the base body 42 and extending along the rail.
  • the toothed rack 100 interacts with a toothed wheel 102, which is rotatably mounted on the separating device 34 about an axis of rotation 104.
  • a rotary movement of the gear wheel 102 is transmitted by meshing engagement to a further gear wheel 106, which is connected in a rotationally fixed manner to the frictional engagement element 92 and the separating disk 56.
  • a movement of the separating device 34 along the movement axis 40 by means of the feed device 44 results in the gear wheel 102 rolling on the rack 100.
  • the resulting rotational movement of the gear wheel 102 is transmitted in the opposite direction of rotation to the gear wheel 106, which thus rotates about the axis of rotation 66, specifically together with the frictional engagement element 92 and the cutting disk 56.
  • a feed direction 108 of the feed device 44 is shown, which is translated into a rotary movement 110 of the gear wheel 102.
  • the gearwheel 106 rotates in opposite directions about the axis 66; the cutting disk 54 rotates in the same direction around the axis 64 in relation to the direction of rotation 110.
  • the finishing belt 24 arrives in the engagement area 90 between the frictional engagement surfaces 91 and 92 and is drawn into the engagement region 90 from the point of view of the finish belt 24, so that the friction engagement surfaces 94, 96 as Clamping surfaces for the finishing belt 24 are effective.
  • the finishing tape 24 to be severed is fixed in the area 90 and can be severed in the severing area 58 immediately adjacent thereto. Since the cutting edges of the cutting disks 54, 56 have essentially the same diameter as the cylindrical frictional engagement surfaces 94, 96, the cutting speed across the width of the finishing belt 24 is at least approximately the same as the circumferential speed of the frictional engagement surfaces 94, 96 in the area 90. In this way the finishing belt 24 can be severed largely free of transverse forces.
  • Sections cut off from the finishing belt 24 can be collected in a collecting container 112.
  • the collecting container 112 is, for example, a collecting channel 114 which can be moved together with the separating device 34 along the movement axis 40. Finishing strip sections collected in the collecting chute 114 can be disposed of from there or else only temporarily stored in the collecting chute 114 and fed from there to a stationary additional collecting container 116. For the transfer of finishing tape sections from the collecting channel 114 into the additional collecting container 116, slides or fans can be used, for example. It is also conceivable that the collecting channel 114 extends along the entire length of the rail 42.
  • the collecting chute 114 can be disposed of by means of a conveyor belt. Such a conveyor belt preferably extends along a floor of the collecting chute 114.
  • Manual disposal of the collecting channel 114 is also possible.
  • This separating device 34 is a stationary separating device, which is therefore not movable along a movement axis 40 parallel to the workpiece axis 20 in a feed direction.
  • the separating device 34 according to Figures 5 to 7 has a drive motor 118 which drives a cutting disk 56 about an axis of rotation 66 in the direction of rotation.
  • the rotary movement is transmitted to a further cutting disk 54 about an axis 64 by means of frictional engagement elements 91 and 92, as described above with reference to FIG Figures 2 to 4 described.
  • the axes 64 and 66 are each arranged on carriers 120, 122 extending approximately parallel to the workpiece axis 20.
  • the supports 120, 122 are acted upon by tension springs 88 in mutually facing directions.
  • the corresponding counterforce arises in the engagement area 90 through pressure contact between the frictional engagement elements 90 and 92.
  • a spacer device 124 is provided. This has a spindle axis 126, which is supported on the carrier 120 and is effective against the carrier 122, so that the carriers 120 and 122 can be pressed apart against the force of the tension springs 88.
  • One of the carriers is preferably stationary, for example the carrier 120, while the other carrier is movable, for example the carrier 122.
  • the separating device 34 comprises according to FIG Figures 5 to 7 Guide elements 126, 128, which are effective in a guide plane which is oriented perpendicular to the direction in which the finishing belt 24 extends.
  • the guide elements 126, 128 define a V-shaped tapering guide space (cf. Figure 6 ).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
EP17714442.5A 2016-04-29 2017-03-30 Bandfinishvorrichtung Active EP3294494B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016107965.0A DE102016107965A1 (de) 2016-04-29 2016-04-29 Bandfinishvorrichtung
PCT/EP2017/057510 WO2017186446A1 (de) 2016-04-29 2017-03-30 Bandfinishvorrichtung

Publications (3)

Publication Number Publication Date
EP3294494A1 EP3294494A1 (de) 2018-03-21
EP3294494B1 EP3294494B1 (de) 2019-01-02
EP3294494B2 true EP3294494B2 (de) 2021-03-10

Family

ID=58455048

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17714442.5A Active EP3294494B2 (de) 2016-04-29 2017-03-30 Bandfinishvorrichtung

Country Status (5)

Country Link
EP (1) EP3294494B2 (ko)
KR (1) KR102186634B1 (ko)
CN (1) CN109153103B (ko)
DE (1) DE102016107965A1 (ko)
WO (1) WO2017186446A1 (ko)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018101339B4 (de) 2018-01-22 2024-02-08 Supfina Grieshaber Gmbh & Co. Kg Bandfinishvorrichtung
CN110666710A (zh) * 2019-09-25 2020-01-10 温州市强达表业有限公司 一种手表表带拉丝抛光器

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4478011A (en) * 1981-08-03 1984-10-23 Norton Co. Hand sander
DE3927085A1 (de) * 1989-08-17 1991-02-21 Krupp Maschinentechnik Entgrateinrichtung fuer werkstuecke aus kunststoff
CN1124472A (zh) * 1993-05-26 1996-06-12 美国3M公司 在加工件上形成光滑表面的方法
SE509840C2 (sv) * 1995-11-06 1999-03-15 Straalfors Ab Skäranordning för skärning av sammanhängande banor
US6083091A (en) * 1998-10-19 2000-07-04 Jack W. Anderson Machine for continuously advancing sandpaper on a palm sander
DE102011081918A1 (de) * 2011-08-31 2013-02-28 Nagel Maschinen- Und Werkzeugfabrik Gmbh Finishmaschine zur Finishbearbeitung gekrümmter Werkstückoberflächen an Werkstücken
DE102014213194A1 (de) * 2014-07-08 2016-01-28 Supfina Grieshaber Gmbh & Co. Kg Andrückeinrichtung zum Andrücken eines Finisbands gegen eine Werkstückoberfläche

Also Published As

Publication number Publication date
CN109153103B (zh) 2019-12-24
WO2017186446A1 (de) 2017-11-02
KR20190002445A (ko) 2019-01-08
EP3294494A1 (de) 2018-03-21
KR102186634B1 (ko) 2020-12-04
CN109153103A (zh) 2019-01-04
EP3294494B1 (de) 2019-01-02
DE102016107965A1 (de) 2017-11-02

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