• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A die change mechanism in a transfer press is disclosed for carrying feed bars with dies supported thereon into and out of the press. The mechanism performs cyclic clamping, advancement, unclamping and return movements on the feed bars which feed work pieces to and through the successive processing stages of the press.
    公开号:SU776549A3
    申请号:SU782579350
    申请日:1978-02-16
    公开日:1980-10-30
    发明作者:Иманиси Созо
    申请人:Аида Инджиниринг, Лтд (Фирма)；
    IPC主号:
    专利说明:

    one
    The invention relates to the field. forging and pressing machinery, namely, devices designed to move the workpiece on a multi-position 5 press.
    A device for moving the workpiece on a multi-position press is known, which comprises a lever mounted on a press arm with a 10-fold gate connected to a rack with reciprocating movement located on the press frame with reciprocating movement J5 on the frame with the ability to move 6 horizontal planes and interacting with the toothed rack, as well as locking strips that interact with the feed bars 1. 20
    A disadvantage of the known device is the inconvenience of its operation, which consists in the absence of an accurate fixing of the feed bars relative to the press stamp, and therefore of the blanks, and also, when removing the stamps from the press, the feed bars must be manually removed, which reduces productivity.
    The aim of the invention is to increase labor productivity and ease of operation.
    This goal is achieved by the fact that the feed strips are placed on the press frame with the ability to move in a vertical plane, and the device is equipped with a hydraulic cylinder placed on the press bracket, which interacts with one end of the gear rack, a clamping cylinder, another interacting end of the gear rack, and a clamping mechanism interacting with feed strips located on the support. slip the lower punch of the press. holders of the bottom of the slats, as well as magnets placed in the holders and operating with locking straps.
    FIG. 1 schematically depicts a multi-stage press with a drive mechanism for the feed bars; in fig. 2, the holder of the bar in the fully folded position, front view; fig.Z- the same B average unclamping position; in fig. 4 - the holder of a level, side view; in fig. 5 is an interconnection diagram of the slat and: an eccentric pin; in fig. b - press with a device for moving the workpiece, plan view; in fig. 7, the drive mechanism of the feed bars in the unclamping position, side view. The device contains a bracket 2 fixed on the upper crossbar 1 of the press, in the lower part of which the hinges are fixed: the driving lever 3 feeds {the slats) and in the upper part - the hydraulic cylinder 4 of the clamping cylinder 5, the feed bars 6, on which the fixing bars 7, are attached. strips, magnets 9, placed in the holders. On the press slider 10, .kulychbk 11. fastens. On one koHtie lever, 3 tayovlev roller 12, and on the other axis, on the axle 13, there is a connecting rod 14, connected with a clamping drive mechanism .1.5. The slats are connected to the clamping member 16. The cylinder 5 is connected to the thrust 14 by a rail 17. The cylinders 4 and 5 are controlled by electromagnetic valves 18 and 19. The press frame has four legs 20-23, one of which has a thickened part 24, the die plate 25. The device also comprises a mechanism 26 for transmitting the horizontal plane movement to the feed strips 6, which are fastened on the mechanism 26 s, by means of the driver fingers 27, clamp-release holders 28. The lower dies 29 are fastened on the support plate 30, and the upper ones - Hai base plate 31, podshtampova pli 25 and placed on the table 32 of the press. The blanks Pdayu1Tc in the press on the conveyor 33, cylinder 5 is mounted on the thickened part of the stand of the bed with the help of the bracket 34. The device also includes a gear wheel 35, which engages with the toothed frame 17 and connected through the lever 36 and the finger 37 to the connecting rod 38 toothed rack 39, which is connected to the cog with the rail 40 through the gear wheel 41. The device works as follows. The blanks attached to the feeding bars of the drawing (not shown in the drawings) from the two sides of the blank are transferred to the new position, then together with the barsdisperse and return to the original position. The mechanism 26 provides the movement of the bars 6 together with the grips of the horizontal plane, the connection between the mechanism 26 and the bars 6 is provided with a finger 27i. To ensure the accuracy of moving the workpiece from position to position, it is necessary that the feed bars 6 occupy a strictly specified position on the reference, slab 30. For this purpose, the movement of the feed plates in the unclamping position is carried out in two stages, i.e. moving to the middle unclamping position to the fully unlocking position. When the feed bars are set to the middle unclamp position, they can move forward. backwards When they are in the fully unclended position, they are accurately fixed relative to the dies. To ensure that the feed plates move to the middle, unclamping and fully unclamping position on the bracket 2, which, in turn, is attached to the upper crossbar 1 of the press, a hydraulic cylinder 4 is mounted, and to the bracket 2 with one end hingedly fastens the lever 3, which extends under the hydraulic cylinder 4. When compressed air is supplied to the lower chamber of the clamping cylinder 5 and the lever 3 is turned upwards as far as it will go into the hydraulic cylinder, the feed plates will be mixed into the middle unclamp position. Further, when the compressed air leaves the hydraulic cylinder 4j and the feed bars 6 are separated by a distance corresponding to the distance traveled by the piston of the hydraulic cylinder, the feed bars are set to the fully unclamping position. To fix the position of the feed bars, steel fixing bars 7 are fastened to them, and the holders 8 of the feed bars are provided with grooves adapted to fit the steel bars in them, bars 7, when the feed bars are turned. Placed in full release position. In the holders 8 of the feed bars, magnets 9 are built in, which are intended to draw steel fixing bars in order to hold the feed bars 6 in the connected state to the base plate 30 so that the feed bars will not be displaced. When the feeding bars 6 are in the middle unclamping position, they can move in the lateral direction, since there is a space e between each holder 8 of the feeding bar and the fixing steel bar 7 connected to it. FIG. shows the interrelation of the riser positions of the feed bars 6 and the eccentric pin 37, S, the distance between the feed bars in the clamping position, S the distance between the feed bars in unclamping position; S, is the distance between the feed bars in the middle unfolding position; and S is the distance between the feed bars in the fully unclamping position. The action of the hydraulic cylinder 4 and the clamping cylinder 5. Suppose that the piston of the hydraulic cylinder 4 makes a stroke equal to 25 mm, then the gear rack 17 (when the feed bars are set to an average uncoupling position, and the hydraulic cylinder 4 is not compressed
    air) is moved to a distance of 25 mm, while moving the feed bars b to the fully unclamping position, in which they are fixed by being pulled by magnets 9 embedded in the holders 8 of the feed bars fixing the steel bars 7 to enter them into holders of holders 8.
    Compressed air is usually supplied to the upper cavity of the clamping cylinder 5. However, when the feed bars B. are moved to the unclamping position, the compressed air feeds to the lower cavity of the clamping cylinder 5, the rack bar 17 moves upward and the feed plates take the unclamping position. Further upper end lever 3 rests on the ram of the piston of the hydraulic cylinder 4, and feed-. The bars of the bar b are set in the middle; unclamping position. When the bars b are on the average unclamping wave, they can only move back and forth when the press slide 10 is moved.
    When replacing dies 29, they rise up (with any known drive), along with them the plaques 6 rise, as they are carried by holders 8, which, in turn, are mounted on the base plate 30. At the same time, the feed bars come out of the engagement with the fingers 27 and the clamping holders 28. Thus, the feed bars do not prevent the replacement of dies.
    Compared with the known device, the proposed method allows to increase the labor productivity and ease the operating conditions.
    权利要求:
    Claims (1)
    [1]
    1. USSR author's certificate No. 549210, cl. B 30 V 15/30, 1976.
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    同族专利:
    公开号 | 公开日
    DE2816928C2|1984-05-17|
    DE2816928A1|1978-11-09|
    US4149400A|1979-04-17|
    JPS53134282A|1978-11-22|
    JPS6210732B2|1987-03-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3105399A|1958-12-02|1963-10-01|Wagner & Co Werkzeugmaschinen|Forging press|
    US3541834A|1968-07-17|1970-11-24|Bernard J Wallis|Transfer die mechanism for presses|
    FR2077434B3|1970-01-31|1973-10-19|Schuler Gmbh L|
    DE2510335A1|1975-03-10|1976-09-16|Vyzk Ustav Tvarecich Ju A Tech|FORMING PLANT|
    DE2525616C3|1975-06-02|1980-11-27|K.K. Komatsu Seisakusho, Tokio|Adjusting device of a workpiece transport device of transfer presses|
    JPS564335B2|1975-07-22|1981-01-29|DE2900526C2|1978-07-15|1991-02-14|Aida Engineering, Ltd., Sagamihara, Kanagawa|Quick tool change device for a transfer press|
    JPS6324776B2|1981-03-06|1988-05-23|Aida Eng Ltd|
    JPH0199731A|1987-10-12|1989-04-18|Komatsu Ltd|Method for changing dies in transfer press|
    EP0647488A1|1993-10-04|1995-04-12|L. SCHULER GmbH|Press, multistage press or the like forming machine|
    JP2010284716A|2009-06-15|2010-12-24|Denso Corp|Die|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP52048410A|JPS6210732B2|1977-04-28|1977-04-28|
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