WO2006006538A1 - プレス機械のワーク搬送装置 - Google Patents
プレス機械のワーク搬送装置 Download PDFInfo
- Publication number
- WO2006006538A1 WO2006006538A1 PCT/JP2005/012687 JP2005012687W WO2006006538A1 WO 2006006538 A1 WO2006006538 A1 WO 2006006538A1 JP 2005012687 W JP2005012687 W JP 2005012687W WO 2006006538 A1 WO2006006538 A1 WO 2006006538A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- transfer
- workpiece
- lift
- support member
- work
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/05—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
- B21D43/055—Devices comprising a pair of longitudinally and laterally movable parallel transfer bars
Definitions
- the present invention relates to a work transfer device that transfers a work in a press machine.
- a transfer press provided with a plurality of processing steps in a press body is provided with a transfer feeder that sequentially conveys workpieces to the next step between the respective processing steps.
- a transfer feeder a workpiece is held by a workpiece holder, and this workpiece holder is held in a three-dimensional direction of feed direction (work conveyance direction), clamping direction (horizontal orthogonal direction to the feed direction), and lift direction.
- a three-dimensional transfer feeder is generally known in which workpieces are transferred to the next process by moving them to the next.
- FIG. 7 shows the overall configuration of a transfer press using a conventional three-dimensional transfer feeder.
- the transfer feeder 110 has a pair of left and right transfer bars 113 parallel to the feed direction, and these transfer bars 113 are detachably equipped with a plurality of workpiece holders (not shown) for holding workpieces. ing. These transfer bars 113 have a feed-return movement (back and forth movement) that reciprocates in the feed direction, a lift-down movement (up and down movement) that reciprocates in the lift direction (vertical direction), and a clamping direction (in the feed direction).
- the workpiece 106 is sequentially transferred to the mold 130 on the downstream side by performing a three-dimensional operation of clamp unclamping movement (left-right movement) that reciprocates in the direction perpendicular to the horizontal plane. At this time, the basic operation pattern of the transfer bar 113 is clamp, lift, feed, down, unclamp, and return.
- the transfer feeder 110 has a transfer feeder.
- a feed device (not shown) for moving in the feed direction and a lift / clamp device 140 for moving in the lift direction and the clamp direction are provided as devices for causing the avatar 113 to perform the above-described operation.
- the feed box 111 incorporating this feed device is provided so as to protrude from the upstream or downstream side surface of the press body 101, and the lift box 111 incorporating the lift and clamp device 140 is provided.
- the clamp box is provided between the left and right uprights 103 on the front and rear sides and on the bed 102.
- Patent Document 1 discloses a force that allows movement in the vertical and horizontal directions to be free, and a feed carrier to which a feed bar is connected so that movement in the front-rear direction (feed direction) is restricted.
- a technology is disclosed that includes a feed unit that moves the carrier back and forth and a linear motor that is a drive source of the feed unit.
- Patent Document 1 JP-A-10-314871
- the present invention has been made paying attention to the above-described problems, and by reducing the output of the drive source in the feed direction by simplifying the work transfer device and reducing the manufacturing cost with less energy consumption.
- An object of the present invention is to provide a work conveying device for a press machine that can reduce noise.
- a work transfer device for a press machine includes a pair of transfer bars provided in parallel to a feed direction, and each of the transfer bars can be moved in the feed direction. And a support member constrained in the lift direction, a linear motor interposed between the support member and the transfer bar, and moving the transfer bar relative to the support member in the feed direction, and moving the support member in the lift direction.
- a lift device and a work holder that is detachably attached to the transfer bar and holds the work are provided.
- a cross bar is provided between the pair of transfer bars in a clamping direction perpendicular to the feed direction, and the work is mounted on the cross bar. It is preferable to arrange a holder.
- the work transfer device for the press machine includes a pair of left and right transfer bars provided in parallel to the feed direction, each of the transfer bars being movable in the feed direction, the lift direction, and the clamp A support member that is constrained in a direction, a linear motor that is interposed between the support member and the transfer bar, and that drives the transfer bar in the feed direction relative to the support member, and moves the support member in the lift direction A lift device, a clamp device that moves the support member in the clamping direction, and a workpiece holder that is detachably attached to the transfer bar and holds the workpiece are provided.
- the transfer bar is directly provided on the magnet side or the coil side of the linear motor, and the transfer device is provided with the linear motor force interposed between the support member and the transfer bar.
- the bar is moved in the feed direction with respect to the support member, and the support member is driven up and down by a lift device.
- the transfer bar is provided with a cross bar horizontally mounted in a direction orthogonal to the longitudinal direction thereof, and a work holder is disposed on the cross bar, whereby the center of the thin and large workpiece is arranged. An appropriate position of the part can be held. For this reason, the deformation of the workpiece during conveyance can be reduced, the conveyance of the workpiece can be ensured, and the occurrence of defective products due to the deformation of the workpiece during conveyance can be suppressed.
- a clamp device for moving the support member in the clamping direction is provided, so that a three-dimensional transfer feeder is configured, and the same effect as the first invention is achieved. I am trying.
- FIG. 1 shows the overall configuration of a transfer press using the workpiece transfer apparatus of the present invention
- FIG. 2 shows the configuration of the workpiece transfer apparatus of the present invention
- FIG. 3 shows the configuration of the present invention. Show the motion of the transfer bar.
- the transfer press includes a press main body 1 including a bed 2, upright 3, crown 4, and slide 5, a mold 30, a mover bolster 33, and a work transfer device 10.
- a press main body 1 including a bed 2, upright 3, crown 4, and slide 5, a mold 30, a mover bolster 33, and a work transfer device 10.
- the direction in which the workpiece is conveyed (the left-right direction in FIG. 1) is referred to as the feed direction or the front-rear direction
- the up-down direction in FIG. 1 is referred to as the lift direction or the up-down direction.
- the direction perpendicular to the direction perpendicular to the paper in Fig. 1) is called the clamping direction or left-right direction.
- a bed 2 serving as a base of a press machine is provided, and columnar uprights 3 are erected at four corners on the upper surface.
- a crown 4 incorporating a slide drive device (not shown) is supported on the upright 3.
- a slide 5 is suspended below the crown 4 so as to be movable up and down.
- the crown 4, the upright 3 and the bed 2 are fastened by tie rods, not shown.
- each upper mold 31 corresponding to the press molding process is mounted. It is worn. Further, a mover bolster 33 is placed on the bed 2, and a lower mold 32 that is paired with the plurality of upper molds 31 is detachably mounted on the upper surface thereof. A workpiece is press-formed between the upper mold 31 and the lower mold 32.
- each moving bolster 33 is mounted with a part of the workpiece transfer device 10 on which a workpiece holder (not shown) corresponding to each lower mold 32 is mounted.
- Each moving bolster 33 is equipped with a self-propelled drive device!
- rails are laid on the floor FL and on the bed 2, not shown in the clamping direction! RU
- the moving bolster 33 passes between the uprights 3 and 3 erected on the upper surface of the bed 2 in the feed direction by the driving device and rails in the clamping direction, and is carried out into the press machine (or loaded with external force from the press machine). It is free. As a result, the used lower mold 32 can be quickly replaced with the next lower mold.
- the workpiece transfer device 10 includes a pair of transfer bars 13 and 13 (hereinafter referred to as a pair of left and right) opposed to each other in the clamping direction, and a feed device 11 that moves the workpiece in the feed direction on the transfer bar 13. And a lift / clamp device 40 for moving the transfer bar 13 in the lift direction and the clamp direction.
- the transfer bar 13 includes a fixed bar 13B fixed to the workpiece transfer device 10, and a moving bar 13A that is separated from the fixed bar 13B when the mold is changed and is carried out of the press machine together with the moving bolster 33. It consists of
- a plurality of pairs of bases 14 and 14 are assembled to the left and right moving bars 13A and 13A, respectively.
- a workpiece holder (not shown) corresponding to the mold 30 is detachably attached to the base 14.
- the feed device 11 that moves the transfer bar 13 in the feed direction includes a pair of left and right trucks. It is provided in each of the safety fans 13, 13.
- the feed device 11 includes a support member 19 that supports the fixed bar 13B of the transfer bar 13, a re- guide 19 that guides the transfer bar 13 so as to be movable in the feed direction with respect to the support member 19, and a transfer bar 13 And a linear motor 16 for driving in the feed direction.
- the transfer bar 13 includes a linear guide rail 18A laid in the feed direction along the outer surface of the transfer bar 13, and a linear guide 18 formed of a linear guide holder 18B fixed to the inner surface of the support member 19. Is held movably in the feed direction.
- the linear motor 16 for driving the feed device 11 is composed of a linear motor magnet 16A laid in the feed direction along the outer surface of the transfer bar 13, and a linear motor coil 16B fixed to the inner surface of the support member 19. ing.
- linear motor coil 16B may be provided on the transfer bar 13 side, and the linear motor magnet 16A may be provided on the support member side.
- the linear motor 16 having no rotating parts and a small number of parts is employed as a drive source of the feed apparatus 11, so that the feed apparatus 11 can be reduced in weight and size. .
- noise can be reduced.
- the linear motor 16 is provided between the transfer bar 13 and the support member 19 and only the transfer bar 13 is moved, it is possible to reduce the weight of the movable body, and the linear motor 16 requires only a small output.
- the weight of the movable body is light, chattering of the transfer bar 13 during starting, stopping, and inching can be suppressed, and the overall speed of the feeder device 11 and high positioning accuracy can be achieved, and the press machine can be operated at high speed. Driving is possible. Furthermore, since the number of parts is small, maintenance work is facilitated.
- the lift and clamp device 40 includes a lift device 41 that moves the transfer bar 13 in the lift direction, and a clamp device 61 that moves the transfer bar 13 in the clamp direction.
- Lift 'clamp devices 40, 40 are housed in lift' clamp boxes 70, 70 .
- Lift'clamp boxes 70 and 70 are arranged on the bed 2 below the support members 19 at both ends in the feed direction, and between the opposing backlights 3 and 3 in the clamp direction. ing.
- the lift device 41 constituting the lower part of the lift / clamp device 40 includes a lift drive motor 44 and a lift screw 46 rotated by the lift drive motor 44.
- a lift carrier 42 is screwed to the upper end portion of the lift screw 46.
- the lift carrier 42 is attached so as to be movable in the clamping direction via lower end force cam followers 43A and 43A of lift bars 43 and 43 opposed to the feed direction.
- the upper ends of the lift bars 43 and 43 are fixed to the support member 19.
- the lift carrier 42 screwed with the lift screw 46 moves up and down.
- the transfer bar 13 moves up and down in the lift direction via the lift bars 43 and 43 and the support member 18.
- the lift carrier 42 is mounted with lift balancers 47 and 47 at both ends in the clamping direction for smoothly moving the lift carrier 42 and balancing the weight of the transfer bar 13, the lift carrier 42, and the like.
- the clamp device 61 constituting the upper part of the lift 'clamp device 40 will be described.
- the lift bars 43, 43 are inserted into the guide portions of the clamp carriers 62, 62.
- a clamp screw 66 that is rotated by a clamp drive motor 64 provided in the lift 'clamp box 70 is screwed into the clamp carriers 62 and 62.
- left and right linear guide rails 63 are laid in the clamping direction.
- the clamp carrier 62 is mounted on the left and right linear guide rails 63 via a left and right linear guide holder (not shown) so as to be movable in the clamp direction.
- the support member 19 is provided above the lift and clamp device 40, the support member 19 is provided so as to protrude from the front (upstream side) or rear (downstream) side surface of the conventional press body.
- the box 111 is unnecessary and only requires a simple cover. For this reason, the overall length of the press line can be shortened, and the installation area of the entire press line is reduced.
- the workpiece 6 is loaded and placed on a workpiece receiving position (not shown) at the workpiece loading position (transfer bar 13, 13 front end position) of the transfer bar 13 by a loading device (not shown).
- the transfer bar 13 in the down (transfer bar 13, 13 descending) position also moves to the clamp (transfer bar 13, 13 approach) position.
- the workpiece 6 on the cradle is placed on the workpiece holder 15 attached to the base 14.
- the transfer bar 13 is unclamped by the clamping device 61, so that the workpiece holder 15 is retracted from the workpiece 6. Then, after the transfer bar 13 is unclamped and reaches the clamp retracted end, the transfer bar 13 is returned (retracted) by the feed device 11 to the first loading position.
- the molded workpiece 6 that has been carried out to the workpiece cradle at the workpiece carrying-out position is carried out of the press machine by a product carrying-out device (not shown).
- the work transfer device includes the feed return motion that reciprocates the transfer bar 13 in the feed direction, the up-and-down motion that reciprocates in the vertical direction, and the clamping direction that is horizontally orthogonal to the feed direction. Clamps that reciprocate in the same direction.
- the transfer bars 13 and 13 are fixed in the clamping direction by stopping the driving of the clamping device 61 in the first embodiment.
- the crossbar 20 is placed horizontally between the transfer bars 13 and 13 which are kept at a constant interval.
- the cross bar 20 is provided with a work holder 15 for holding the work 6 at the lower part thereof using a vacuum cup using negative pressure.
- the cross bar 20 at the standby position is returned together with the transfer bar 13.
- the cross bar 20 is returned to the work cradle, it is lowered, and the workpiece 6 on the work cradle is sucked by the vacuum cup.
- the loading position force by the workpiece conveying device 10 is also moved to the first machining process position of the press forming force.
- This is performed in the same manner as the workpiece conveyance (described in (1) to (4)) and the forming process of the workpiece 6 in the first machining step (described in (5)). That is, the workpiece transfer from the first processing step position to the second processing step position of the press forming force by the workpiece transfer device 10 and the forming process of the workpiece 6 in the second check step are performed in the same manner as described above. Is called.
- the workpiece conveyance from the second machining step position to the third machining step position in the press molding process by the workpiece conveying device 10 and the forming force of the workpiece 6 in the third machining step are performed in the same manner as described above.
- the workpiece transfer device 10 performs two-dimensional operation of feed / return movement that reciprocates the transfer bar 13 in the feed direction and up-and-down movement that reciprocates in the vertical direction. Is going.
- a vacuum force cup which is a work holder 15, is provided on the cross bar 20, but a vacuum cup is provided on the transfer bar 13 as shown in FIG. May be.
- the driving of the clamp device 61 of the first embodiment is stopped, and the transfer bar is moved two-dimensionally.
- the clamping device is not necessary. Therefore, the initial force may be configured to be only the lift device without providing the clamp device.
- the transfer bar 13 when the mold is exchanged, the transfer bar 13 is divided into a moving bar 13A and a fixed bar 13B, and the moving bar 13A is placed on the moving bolster 33 to move out of the press machine.
- the force that has been carried out may be separated from the transfer bar 13, and the separated cross bar 20 may be placed on the moving dabolster 33 and carried out of the press machine.
- the lift drive motor 44 and the clamp drive motor 64 may be configured by linear motors like the linear motor 16 that is the drive source of the feed device 11. ! / ⁇
- the lift / clamp box 70 is a force installed on the bed 2 below the transfer bar 13 and between the uprights 3 and 3 above the transfer bar 13. May be installed. In this case, the transfer bar 13 is suspended from the support member 19.
- the support member 19 positioned above the lift' clamp box 70 is also There will be two for one transfer bar 13. However, the number of support members 16 for one transfer bar 13 may be three or more.
- a linear motor and a linear guide may be provided only on the front (upstream) support member 16, and only the linear guide may be provided on the rear (downstream) support member 16.
- a recent trend in transfer presses is to replace the cam-driven workpiece conveying device of existing press machines with a servo-controlled drive device to improve functions such as higher speed and compatibility with various workpieces. Fit has been actively performed.
- the drive source in the feed direction is a servo motor as in the past, it is the main part of the feed device that protrudes from the side of the press main body on the carry-out side (or work carry-in side).
- the feed box remained, resulting in the replacement of the feed box. Since the feed box is large and heavy, and the force is projected from the side of the press body, it is necessary to replace the feed box, including work to weld the feed box mounting seat to the press body. It took a lot of construction days.
- the feed carrier that supports the transfer bar is large and heavy, and accordingly, a large feed box is attached.
- the feed box since the support member is only provided above (or below) the lift and clamp device, the feed box may be a simple cover such as unnecessary force, safety, and scrap measures. For this reason, the construction period required for retrofit construction can be shortened, and troubles in user production management can be minimized.
- FIG. 1 is an overall configuration diagram of a press using a work transfer device according to a first embodiment.
- FIG. 2 is a configuration diagram according to the workpiece transfer device of the first embodiment.
- FIG. 3 is a diagram showing a motion in the first embodiment.
- FIG. 4 is a configuration diagram according to a workpiece transfer device of a second embodiment.
- FIG. 5 is a diagram showing a motion of the second embodiment.
- Fig. 6 is a configuration diagram of a workpiece transfer device according to another embodiment of the second embodiment.
- FIG. 7 is an overall configuration diagram of a press using a conventional three-dimensional transfer feeder.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112005001622T DE112005001622T5 (de) | 2004-07-09 | 2005-07-08 | Werkstücktransporteinrichtung für Pressmaschine |
US11/631,870 US7748249B2 (en) | 2004-07-09 | 2005-07-08 | Workpiece conveyance device for pressing machine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-203104 | 2004-07-09 | ||
JP2004203104A JP2006021235A (ja) | 2004-07-09 | 2004-07-09 | プレス機械のワーク搬送装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006006538A1 true WO2006006538A1 (ja) | 2006-01-19 |
Family
ID=35783881
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/012687 WO2006006538A1 (ja) | 2004-07-09 | 2005-07-08 | プレス機械のワーク搬送装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7748249B2 (ja) |
JP (1) | JP2006021235A (ja) |
CN (1) | CN1980758A (ja) |
DE (1) | DE112005001622T5 (ja) |
WO (1) | WO2006006538A1 (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4781881B2 (ja) * | 2005-03-31 | 2011-09-28 | 株式会社エイチアンドエフ | トランスファプレスのフィードバー駆動装置 |
DE102006014454B3 (de) * | 2006-03-29 | 2007-11-08 | Hoffmann, Frank | Stanzvorrichtung mit Zuführeinrichtung |
US7971468B2 (en) * | 2008-07-23 | 2011-07-05 | Hms Products Co. | Part transfer system and method |
CN102470420B (zh) * | 2009-07-06 | 2014-05-07 | 株式会社小松制作所 | 压力机的工件搬送装置及工件搬送单元 |
JP2011194428A (ja) * | 2010-03-18 | 2011-10-06 | Aida Engineering Ltd | 搬送装置の破損防止機構およびそれを用いた搬送装置 |
CN102581121B (zh) * | 2011-01-07 | 2015-02-11 | 会田工程技术有限公司 | 串联式压力机系统的工具更换方法和串联式压力机系统 |
JP5962065B2 (ja) * | 2012-02-29 | 2016-08-03 | 株式会社Ihi | 搬送装置及びトランスファプレス装置 |
DE102012110065A1 (de) | 2012-10-22 | 2014-04-24 | Schuler Automation Gmbh & Co. Kg | Umformanlage |
USD802633S1 (en) * | 2016-03-01 | 2017-11-14 | Stolle Machinery Company, Llc | Transfer belt |
CN110883245B (zh) * | 2018-09-10 | 2021-04-02 | 长城汽车股份有限公司 | 冲床 |
CN115156369B (zh) * | 2022-07-11 | 2024-06-21 | 红旗仪表(长兴)有限公司 | 一种用于压力表表壳生产的冲压设备 |
Citations (3)
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JPH0741535Y2 (ja) * | 1991-03-30 | 1995-09-27 | 日立造船株式会社 | トランスファプレスにおけるワーク保持用アタッチメントの交換装置 |
JPH08243661A (ja) * | 1995-03-06 | 1996-09-24 | Mazda Motor Corp | ワーク搬送装置におけるワーク検出装置 |
JPH10156455A (ja) * | 1996-11-15 | 1998-06-16 | Manzoni Presse Spa | トランスファ装置 |
Family Cites Families (13)
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DE2708457C2 (de) * | 1977-02-26 | 1989-04-27 | Kabushiki Kaisha Komatsu Seisakusho, Tokio/Tokyo | Transportmechanismus für Schmiedemaschinen |
JPS5855138A (ja) * | 1981-09-28 | 1983-04-01 | Sumitomo Heavy Ind Ltd | トランスフア−フイ−ド装置 |
US5248288A (en) * | 1991-03-29 | 1993-09-28 | Hitachi Zosen Corporation | Apparatus for changing work holder in transfer press |
JPH0741535A (ja) | 1993-07-29 | 1995-02-10 | Nippon Oil Co Ltd | フェノール樹脂組成物 |
EP0647488A1 (de) * | 1993-10-04 | 1995-04-12 | L. SCHULER GmbH | Presse, Mehrstufenpresse od. dgl. Umformmaschine |
DE19506079A1 (de) | 1995-02-22 | 1996-08-29 | Schuler Pressen Gmbh & Co | Vorrichtung zum Transfer von Werkstücken durch eine Folge von Bearbeitungsstationen |
DE19506077A1 (de) * | 1995-02-22 | 1996-08-29 | Schuler Pressen Gmbh & Co | Vorrichtung zum Transfer von Werkstücken durch eine Folge von Bearbeitungsstationen |
DE19506078A1 (de) * | 1995-02-22 | 1996-08-29 | Schuler Pressen Gmbh & Co | Vorrichtung zum Transfer von Werkstücken durch eine Folge von Bearbeitungsstationen |
US5586464A (en) * | 1995-10-20 | 1996-12-24 | Livernois Die And Automation | Modular die transfer system |
JPH10314871A (ja) | 1997-03-19 | 1998-12-02 | Fukui Kikai Kk | トランスファプレスのフィードバー駆動装置 |
JP2001252733A (ja) * | 2000-03-10 | 2001-09-18 | Aida Eng Ltd | トランスファ装置 |
JP2003290851A (ja) | 2002-03-29 | 2003-10-14 | Komatsu Ltd | プレス機械のワーク搬送装置 |
US6931905B2 (en) * | 2003-04-15 | 2005-08-23 | Stolle Machinery Company, Llc | Method and apparatus for forming container bodies |
-
2004
- 2004-07-09 JP JP2004203104A patent/JP2006021235A/ja active Pending
-
2005
- 2005-07-08 DE DE112005001622T patent/DE112005001622T5/de not_active Ceased
- 2005-07-08 WO PCT/JP2005/012687 patent/WO2006006538A1/ja active Application Filing
- 2005-07-08 CN CNA2005800228375A patent/CN1980758A/zh active Pending
- 2005-07-08 US US11/631,870 patent/US7748249B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0741535Y2 (ja) * | 1991-03-30 | 1995-09-27 | 日立造船株式会社 | トランスファプレスにおけるワーク保持用アタッチメントの交換装置 |
JPH08243661A (ja) * | 1995-03-06 | 1996-09-24 | Mazda Motor Corp | ワーク搬送装置におけるワーク検出装置 |
JPH10156455A (ja) * | 1996-11-15 | 1998-06-16 | Manzoni Presse Spa | トランスファ装置 |
Also Published As
Publication number | Publication date |
---|---|
CN1980758A (zh) | 2007-06-13 |
DE112005001622T5 (de) | 2007-08-23 |
US7748249B2 (en) | 2010-07-06 |
JP2006021235A (ja) | 2006-01-26 |
US20070289352A1 (en) | 2007-12-20 |
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