WO2019100460A1 - 可用于冲压、拉伸和挤压生产的力多级放大装置 - Google Patents

可用于冲压、拉伸和挤压生产的力多级放大装置 Download PDF

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Publication number
WO2019100460A1
WO2019100460A1 PCT/CN2017/116127 CN2017116127W WO2019100460A1 WO 2019100460 A1 WO2019100460 A1 WO 2019100460A1 CN 2017116127 W CN2017116127 W CN 2017116127W WO 2019100460 A1 WO2019100460 A1 WO 2019100460A1
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Prior art keywords
block
platen
stamping
amplifying device
rod
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PCT/CN2017/116127
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English (en)
French (fr)
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韩峥
韩建国
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韩峥
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Publication of WO2019100460A1 publication Critical patent/WO2019100460A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/10—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism
    • B30B1/106—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism operated by another toggle mechanism

Definitions

  • the invention relates to a force multi-stage amplifying device which can be used for stamping, drawing and extrusion production, and belongs to the technical field of press working.
  • the devices currently used in the market for stamping, drawing and extrusion production such as those used in hydraulic sheet metal cutting machines, are motor driven pulleys, pulleys that drive gear rotation, and gears that drive the crank mechanism to operate the mechanical cutting machine.
  • shock vibration and shock noise are large, but also high power consumption.
  • the patent number applied by the inventor is ZL201120326594.7, and the invention is a Chinese patent for a hydraulic sheet metal cutting machine.
  • the elbow force increasing mechanism of the device includes an upper toggle lever, a toggle toggle and a short connecting rod.
  • the lower end of the toggle lever is hinged at the corner of the toggle lever, and the lower end of the toggle toggle is hinged to the lower lower support of the platform platen.
  • the end of the short toggle link of the toggle elbow is hinged to the crankshaft and the other end is hinged to the movable bracket.
  • Upper, the movable bracket is fixed to the piston rod of the hydraulic cylinder.
  • the technical problem to be solved by the invention is to solve the defects of the prior art, and to provide a simple structure, multiple times of transmission capacity amplification, compact structure, small volume, reduced impact vibration and impact noise, which can be used for stamping, drawing and extrusion production.
  • Force multi-stage amplification device Force multi-stage amplification device.
  • a force multi-stage amplifying device which can be used for stamping, drawing and extrusion production, comprising a boosting mechanism and a force applying mechanism, the boosting mechanism including a push rod and a relative setting a base and a platen, the base is fixed on the frame, a push block is disposed between the base and the platen, and at least two sets of link sets respectively disposed at opposite sides of the push block, the push block being fixed on the push rod and being between the base and the platen Reciprocating movement, the push block is provided with a curved contour and an arc chute, and each set of connecting rods includes an upper link, a lower link, a return rod and a pin, and the upper link, the lower link and the back One end of the tie rod is commonly hinged to the pin shaft, one end of the upper link is formed as a seat portion having an annular contour, the other end of the upper link is hinged on the platen, and the other end of the lower link
  • the invention provides a power assisting mechanism and a force applying mechanism, and pushes and pulls the push block through the push rod of the power assisting mechanism, and the push block reciprocates between the base and the platen, so that when the push block is pushed forward, the slider slides against the slider
  • the arc profile of the push block and the annular profile of the upper link support portion can open the upper and lower links, jack up the platen, first perform a force amplification; and then slide through the top block of the force applying mechanism Abutting against one end of the left link or the right link and the top surface of the platen, pushing the connecting shaft to extend the other end of the left and right links for secondary force amplification, compact structure, and reducing impact Vibration and shock noise double the power consumption, and the transmission capacity can be multiplied by more than one.
  • the improvement of the above technical solution is: when pushing the block in front of the push rod and simultaneously lifting the table, the slider slides against the arc profile of the push block and the annular contour of the upper link support portion, the top The block slides against one end of the left or right link and the top surface of the platen; At this time, the pullback head of the pullback lever slides in the arc chute and is pushed back by the push block.
  • a plurality of flap sets are hinged on the pin shaft, and each of the flap sets is composed of two flaps at opposite sides of a slider, respectively, which are fixed and fixed.
  • a plurality of lifting ring sets are hinged on the shaft, and each of the lifting ring sets is composed of two lifting ring pieces respectively clamping and fixing two opposite faces of the top block.
  • the connecting shaft is provided with a pull ring
  • the platen is provided with a track groove for one end of the pull ring to pass through and move back and forth, and the pull ring is screwed at one end.
  • the effect of the above technical solution is that the present invention pushes the connecting shaft through the top block respectively so that the other end of the left and right links protrudes, and the force is amplified, and the urging mechanism is returned by the pull ring.
  • the working and returning position of the force applying mechanism is carried out through different parts, which reduces wear and makes the overall structure simple and reliable.
  • the push block is a semi-cylindrical block fixed on the push rod
  • the curved surface profile is a semi-cylindrical contour
  • the curved chute is along the center line of the semi-cylindrical block.
  • the circumferentially extending chute is that the push block is a semi-cylindrical block fixed on the push rod, the curved surface profile is a semi-cylindrical contour, and the curved chute is along the center line of the semi-cylindrical block.
  • the push block adopts a semi-cylindrical block
  • the arc profile is a semi-cylindrical profile
  • the arc chute is a chute extending along the circumferential direction of the center line of the semi-cylindrical block, so that The overall structure of the push block is simpler and clearer, and the trajectory and mechanical calculation of the entire device is easier.
  • An improvement of the second modification of the above technical solution is that two guide plates located at both end faces of the semi-cylindrical block are fixed on the base.
  • the third technical solution is that the guide post is disposed between the base and the platen, and the platen is disposed on the guide post and can move up and down along the guide post.
  • the fourth technical solution is that the one end of the pull-back rod is formed as a seat portion having a strip-shaped support hole, and the strip-shaped support hole is provided with a front and rear movable and fixed in the support hole.
  • the sleeve on the pin shaft is screwed on one end of the pull rod with an adjusting bolt that passes through the seat portion and is screwed to the sleeve.
  • the present invention fixes the sleeve on the pin shaft, and the sleeve can move back and forth in the hole of the strip support, when the slider of the slider and the pullback rod wears or the whole link group
  • adjust the pin position by adjusting the bolt When the position needs to be adjusted, adjust the pin position by adjusting the bolt.
  • the fifth perfect solution of the above technical solution is that the connecting rods are composed of an even multiple of the opposite sides of the push block.
  • the sixth improvement of the above technical solution is that the push block is composed of a plurality of blocks respectively having a curved contour and an arc chute.
  • FIG. 1 is a schematic view showing the structure of a multi-stage amplifying device which can be used for stamping, drawing and extrusion production according to an embodiment of the present invention.
  • Figure 2 is an exploded view of Figure 1.
  • FIG. 3 is a schematic structural view of the assist mechanism of FIG. 1.
  • Fig. 4 is a cross-sectional view taken along line A-A of Fig. 3;
  • Figure 5 is an exploded view of Figure 3.
  • Figure 6 is an assembled view of the upper link, the pin, the slider and the push block of Figure 3.
  • Fig. 7 is a schematic structural view of the pullback lever of Fig. 3.
  • the force multistage amplifying device of the present embodiment which can be used for stamping, drawing and extrusion production, as shown in Figs. 1 and 2, includes a boosting mechanism 1 and a force applying mechanism 2.
  • the assist mechanism 1 includes a housing 11 and a table 12 which are oppositely disposed, and a push rod 17, which is fixed to the frame.
  • the push rod 17 may be a push rod of the oil cylinder 3 or The push rod of the stepper motor, and the push rod of the power mechanism.
  • a push block 13 and at least two sets of link sets 14 respectively disposed at opposite sides of the push block 13 are disposed between the base 11 and the platen 12.
  • the push block 13 is fixed to the push rod 17 and reciprocally movable between the base 11 and the platen 12.
  • the push block 13 is formed with a curved profile 13-1 and a curved chute 13-2.
  • the push block 13 of the present embodiment may be of any shape.
  • the push block 13 may be a semi-cylindrical block fixed on the push rod 17, the curved surface profile 13-1 is a semi-cylindrical contour, and the curved chute 13-2 is a circumferential direction along the center line of the semi-cylindrical block. Extended chute.
  • the push block 13 may also be composed of a plurality of blocks each having a curved profile 13-1 and a curved chute 13-2.
  • the link group 14 of the present embodiment is disposed at an even multiple of the opposite sides of the push block 13.
  • Each set of link sets 14 includes an upper link 14-1, a lower link 14-2, a pullback bar 14-3 and a pin 14-4, an upper link 14-1, a lower link 14-2 and a pullback bar 14
  • One end of the -3 is hingedly coupled to the pin 14-4, and one end of the upper link 14-1 is formed as a seat portion having an annular contour, and the other end of the upper link 14-1 is hinged to the platen 12, and the lower link 14 is
  • the other end of the -2 is hinged to the base 11, and the other end of the return rod 14-3 is provided with a returning head 14-31, a pushing block 13 and an upper connecting rod 14-1 which are disposed in the curved chute 13-2.
  • a slider 15 is provided between one end.
  • the specific arrangement of the slider 15 is: a plurality of shutter sets 16 are hinged on the pin 14-4 of the embodiment, and each of the flap sets 16 is clamped and fixed by two opposite faces of a slider 15 respectively.
  • the composition of the flaps of course, there are other ways of setting.
  • the urging mechanism 2 includes a left link 21, a right link 22, a top block 23, and a connecting shaft 24 which are disposed outside the platen 12.
  • One ends of the left link 21 and the right link 22 are hingedly connected to the same connecting shaft 24, and the other end of one of the left and right links is hinged to the frame, and the other end of the left and right links is connected to the movable template. 25 is hinged, and a top block 23 is provided between the platen 12 and the connecting shaft 24 and is used to push the connecting shaft such that the other end of the left and right links projects.
  • the specific arrangement of the top block 23 is: a plurality of lifting ring sets 26 are hinged on the connecting shaft 24, and each of the lifting ring sets 26 is composed of two lifting ring pieces respectively clamping and fixing two opposite faces of the top block 23, and of course Other settings.
  • the connecting shaft 24 is provided with a pull ring 27, and the platen 12 is provided with a track groove for the one end of the pull ring 27 to pass through and move forward and backward.
  • the end of the pull ring 27 is screwed with a nut 28 on the back of the platen 12.
  • the base 11 of the embodiment is fixed with two guide plates 11-1 located at both end faces of the semi-cylindrical block.
  • the platen 12 is disposed on the guide column and can be moved up and down along the guide column, or other mechanism.
  • one end of the pull-back lever 14-3 of the present embodiment is formed as a seat portion having a strip-shaped support hole, and the strip-shaped support hole is provided with a movable portion that can be moved back and forth in the support hole and fixed to the pin.
  • the sleeve 14-32 on the shaft 14-4, one end of the return rod 14-3 is screwed with an adjusting bolt 14-33 passing through the seat portion and screwed to the sleeve 14-32.
  • the link group 14 is disposed at an odd multiple of the opposite sides of the push block 13, and so on. Any technical solution formed by equivalent replacement falls within the scope of protection required by the present invention.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Presses And Accessory Devices Thereof (AREA)

Abstract

一种可用于冲压、拉伸和挤压生产的力多级放大装置，属于压力机作业技术领域。该装置包括助力机构（1）和施力机构（2），助力机构（1）包括推杆（17）、机座（11）、台板（12）、推块（13）和连杆组（14），推块（13）上制有弧面轮廓（13-1）和弧形滑槽（13-2），每组连杆组（14）包括上连杆（14-1）、下连杆（14-2）、回拉杆（14-3）和销轴（14-4），推块（13）和上连杆（14-1）一端之间设有滑块（15），施力机构（2）包括左连杆（21）、右连杆（22）、顶块（23）和连接轴（24），左连杆（21）和右连杆（22）的一端共同铰接于同一连接轴（24）上，左、右连杆（21,22）其中之一的另一端与机架铰接，左、右连杆（21,22）其中之二的另一端与动模板（25）铰接。该装置具有结构简单、具备新式传动方式、传动能力放大多倍以上、有效降低能耗、结构紧凑、体积小、减少冲击振动和冲击噪音的优点。

Description

可用于冲压、拉伸和挤压生产的力多级放大装置 技术领域
本发明涉及一种可用于冲压、拉伸和挤压生产的力多级放大装置，属于压力机作业技术领域。
背景技术
目前市场上使用的用于冲压、拉伸和挤压生产的装置，比如用在液压薄板下料机处，均为电机驱动皮带轮、皮带轮带动齿轮旋转，齿轮带动曲柄机构运行的机械下料机，在其工作时，不仅冲击振动和冲击噪声大，而且功耗高。
发明人申请的专利号为ZL201120326594.7，发明名称为一种液压薄板下料机的一件中国专利，该装置采用的曲肘增力机构包括上肘杆、曲肘杆和短连杆，上肘杆下端铰接于曲肘杆拐角处，曲肘杆下端铰接于机座台板上平面的下支座上，曲肘增力机构短连杆的一端铰接于曲轴杆，另一端铰接于活动支架上，活动支架与液压油缸的活塞杆固定。但是，经过发明人多年使用，发现如下问题：1.现有用于冲压、拉伸和挤压生产的装置的传力不均匀；2.现有用于冲压、拉伸和挤压生产的装置整体结构受限，不能进行扩展；3、现有用于冲压、拉伸和挤压生产的装置的结构复杂。
发明内容
本发明要解决的技术问题是针对现有技术不足，提出一种结构简单、传动能力放大多倍以上、结构紧凑、体积小、减少冲击振动和冲击噪音的可用于冲压、拉伸和挤压生产的力多级放大装置。
本发明为解决上述技术问题提出的技术方案是：一种可用于冲压、拉伸和挤压生产的力多级放大装置，包括助力机构和施力机构，所述助力机构包括推杆、相对设置的机座和台板，所述机座固定在机架上， 所述机座和台板之间设有推块以及至少两组分别设于推块两相对侧处的连杆组，所述推块固定在推杆上并可在机座和台板之间往复移动，所述推块上制有弧面轮廓和弧形滑槽，每组连杆组包括上连杆、下连杆、回拉杆和销轴，所述上连杆、下连杆和回拉杆的一端共同铰接于所述销轴上，所述上连杆一端制为具有环形轮廓的支座部，所述上连杆另一端铰接在台板上，所述下连杆另一端铰接在机座上，所述回拉杆另一端制有一卡设在弧形滑槽中的回拉头，所述推块和上连杆一端之间设有滑块；所述施力机构包括设于台板外的左连杆、右连杆、顶块和连接轴，所述左连杆和右连杆的一端共同铰接于同一连接轴上，所述左、右连杆其中之一的另一端与机架铰接，所述左、右连杆其中之二的另一端与动模板铰接，所述顶块设于台板和连接轴之间并用于推动连接轴以使得左、右连杆其中之二的另一端伸出。
上述本发明公开的可用于冲压、拉伸和挤压生产的力多级放大装置技术方案的工作机理及有益效果陈述如下：
本发明设置助力机构和施力机构，通过助力机构的推杆对推块进行推拉，推块在机座和台板之间往复移动，这样，在推块前推时，滑块滑动抵靠在推块的弧面轮廓和上连杆支座部的环形轮廓上，可以将上、下连杆进行张开，将台板顶起，先进行一次力放大；再通过施力机构的顶块滑动抵靠在左连杆或右连杆的一端和台板顶面上，推动连接轴以使得左、右连杆其中之二的另一端伸出，进行二次力放大，结构紧凑，可以减少冲击振动和冲击噪音，成倍降低功率消耗，传动能力可以放大多倍以上。
上述技术方案的改进是：在推杆前推推块并同时抬升台板时，所述滑块滑动抵靠在推块的弧面轮廓和上连杆支座部的环形轮廓上，所述顶块滑动抵靠在左连杆或右连杆的一端和台板顶面上；在推杆回收 时，所述回拉杆的回拉头在弧形滑槽中滑动并被推块回拉。
上述技术方案的完善之一是：所述销轴上铰接有多个挡片组，每个挡片组是由分别夹持固定一个滑块两相对面处的两个挡片组成，所述连接轴上铰接有多个吊环片组，每个吊环片组是由分别夹持固定一个顶块两相对面处的两个吊环片组成。
上述技术方案的完善之一的改进是：所述连接轴上穿设有拉环，所述台板上制有用于拉环一端穿过并前后移动的轨道槽，所述拉环一端上螺接有位于台板背面的螺母。
本发明采用上述技术方案的效果是：本发明分别通过顶块推动连接轴以使得左、右连杆其中之二的另一端伸出，进行力放大，通过拉环将施力机构进行回位，施力机构的工作和回位通过不同部件进行，减少了磨损，使得整体结构简单可靠。
上述技术方案的完善之二是：所述推块是固定在推杆上的半圆柱块体，所述弧面轮廓是半圆柱面轮廓，所述弧形滑槽是沿半圆柱块体中心线的周向延伸的滑槽。
本发明采用上述技术方案的效果是：将推块采用半圆柱块体，弧面轮廓是半圆柱面轮廓，弧形滑槽是沿半圆柱块体中心线的周向延伸的滑槽，这样，推块整体结构更简单明确，整个装置的运动轨迹和力学计算更容易。
上述技术方案的完善之二的改进是：所述机座上固定有位于所述半圆柱块体两端面处的两块导向板。
上述技术方案的完善之三是：所述机座和台板之间设有导向立柱，所述台板穿设在导向立柱上并可沿导向立柱上下移动。
上述技术方案的完善之四是：所述回拉杆的一端制为具有条形支座孔的支座部，所述条形支座孔内设有可在支座孔内前后移动并固定 在销轴上的轴套，所述回拉杆一端上螺接有穿过支座部并与轴套螺接固定的调节螺栓。
本发明采用上述技术方案的效果是：本发明将销轴上固定轴套，轴套可在条形支座孔内前后移动，当滑块、回拉杆的回拉头磨损或整个连杆组的位置需要调整时，通过调节螺栓将销轴位置进行调节。
上述技术方案的完善之五是：所述连杆组成偶数倍的配置在所述推块两相对侧处。
上述技术方案的完善之六是：所述推块是由多个分别制有弧面轮廓和弧形滑槽的块体组成。
附图说明
下面结合附图对本发明作进一步说明：
图1是本发明实施例可用于冲压、拉伸和挤压生产的力多级放大装置的结构示意图。
图2是图1的爆炸图。
图3是图1助力机构的结构示意图。
图4是图3的A-A剖视图。
图5是图3的爆炸图。
图6是图3中的上连杆、销轴、滑块和推块的装配图。
图7是图3中的回拉杆的结构示意图。
具体实施方式
实施例
本实施例的可用于冲压、拉伸和挤压生产的力多级放大装置，如图1和图2所示，包括助力机构1和施力机构2。
如图3至图6所示，助力机构1包括相对设置的机座11和台板12、以及推杆17，机座11固定在机架上。推杆17可以是油缸3的推杆或 步进电机的推杆，等等动力机构的推杆。
机座11和台板12之间设有推块13以及至少两组分别设于推块13两相对侧处的连杆组14。
推块13固定在推杆17上并可在机座11和台板12之间往复移动，推块13上制有弧面轮廓13-1和弧形滑槽13-2。
本实施例的推块13可以是任意形状的。优选的，推块13可以是固定在推杆17上的半圆柱块体，弧面轮廓13-1是半圆柱面轮廓，弧形滑槽13-2是沿半圆柱块体中心线的周向延伸的滑槽。当然，推块13也可以是由多个分别制有弧面轮廓13-1和弧形滑槽13-2的块体组成。
本实施例的连杆组14成偶数倍的配置在推块13两相对侧处。每组连杆组14包括上连杆14-1、下连杆14-2、回拉杆14-3和销轴14-4，上连杆14-1、下连杆14-2和回拉杆14-3的一端共同铰接于销轴14-4上，上连杆14-1一端制为具有环形轮廓的支座部，上连杆14-1另一端铰接在台板12上，下连杆14-2的另一端铰接在机座11上，回拉杆14-3另一端制有一卡设在弧形滑槽13-2中的回拉头14-31，推块13和上连杆14-1一端之间设有滑块15。
滑块15的具体设置方式:本实施例的销轴14-4上铰接有多个挡片组16，每个挡片组16是由分别夹持固定一个滑块15两相对面处的两个挡片组成,当然也有其它设置方式。
施力机构2包括设于台板12外的左连杆21、右连杆22、顶块23和连接轴24。
左连杆21和右连杆22的一端共同铰接于同一连接轴24上，左、右连杆其中之一的另一端与机架铰接，左、右连杆其中之二的另一端与动模板25铰接，顶块23设于台板12和连接轴24之间并用于推动连接轴以使得左、右连杆其中之二的另一端伸出。
顶块23的具体设置方式:连接轴24上铰接有多个吊环片组26，每个吊环片组26是由分别夹持固定一个顶块23两相对面处的两个吊环片组成,当然也有其它设置方式。
连接轴24上穿设有拉环27，台板12上制有用于拉环27一端穿过并前后移动的轨道槽，拉环27一端上螺接有位于台板12背面的螺母28。
在推杆17前推推块13并同时抬升台板12时，滑块15滑动抵靠在推块13的弧面轮廓13-1和上连杆支座部的环形轮廓上，顶块23滑动抵靠在左连杆21或右连杆22的一端和台板12顶面上；在推杆17回收时，回拉杆的回拉头14-31在弧形滑槽13-2中滑动并被推块13回拉。
为了整体机构的运动和传力准确，本实施例的机座11上固定有位于半圆柱块体两端面处的两块导向板11-1。当然，也可以在机座11和台板12之间设有导向立柱，台板12穿设在导向立柱上并可沿导向立柱上下移动，或者其它机构设置。
如图7所示，本实施例的回拉杆14-3的一端制为具有条形支座孔的支座部，条形支座孔内设有可在支座孔内前后移动并固定在销轴14-4上的轴套14-32，回拉杆14-3一端上螺接有穿过支座部并与轴套14-32螺接固定的调节螺栓14-33。
本发明不局限于上述实施例，例如：连杆组14成奇数倍的配置在推块13两相对侧处，等等。凡采用等同替换形成的技术方案，均落在本发明要求的保护范围。

Claims (10)

  1. 一种可用于冲压、拉伸和挤压生产的力多级放大装置，包括助力机构和施力机构，其特征在于：所述助力机构包括推杆、相对设置的机座和台板，所述机座固定在机架上，所述机座和台板之间设有推块以及至少两组分别设于推块两相对侧处的连杆组，所述推块固定在推杆上并可在机座和台板之间往复移动，所述推块上制有弧面轮廓和弧形滑槽，每组连杆组包括上连杆、下连杆、回拉杆和销轴，所述上连杆、下连杆和回拉杆的一端共同铰接于所述销轴上，所述上连杆一端制为具有环形轮廓的支座部，所述上连杆另一端铰接在台板上，所述下连杆另一端铰接在机座上，所述回拉杆另一端制有一卡设在弧形滑槽中的回拉头，所述推块和上连杆一端之间设有滑块；所述施力机构包括设于台板外的左连杆、右连杆、顶块和连接轴，所述左连杆和右连杆的一端共同铰接于同一连接轴上，所述左、右连杆其中之一的另一端与机架铰接，所述左、右连杆其中之二的另一端与动模板铰接，所述顶块设于台板和连接轴之间并用于推动连接轴以使得左、右连杆其中之二的另一端伸出。
  2. 如权利要求1所述的可用于冲压、拉伸和挤压生产的力多级放大装置，其特征在于：在推杆前推推块并同时抬升台板时，所述滑块滑动抵靠在推块的弧面轮廓和上连杆支座部的环形轮廓上，所述顶块滑动抵靠在左连杆或右连杆的一端和台板顶面上；在推杆回收时，所述回拉杆的回拉头在弧形滑槽中滑动并被推块回拉。
  3. 如权利要求1或2所述的可用于冲压、拉伸和挤压生产的力多级放大装置，其特征在于：所述销轴上铰接有多个挡片组，每个挡片组是由分别夹持固定一个滑块两相对面处的两个挡片组成，所述连接轴上铰接有多个吊环片组，每个吊环片组是由分别夹持固定一个顶块两相对面处的两个吊环片组成。
  4. 如权利要求3所述的可用于冲压、拉伸和挤压生产的力多级放大装置，其特征在于：所述连接轴上穿设有拉环，所述台板上制有用于拉环一端穿过并前后移动的轨道槽，所述拉环一端上螺接有位于台板背面的螺母。
  5. 如权利要求1或2所述的可用于冲压、拉伸和挤压生产的力多级放大装置，其特征在于：所述推块是固定在推杆上的半圆柱块体，所述弧面轮廓是半圆柱面轮廓，所述弧形滑槽是沿半圆柱块体中心线的周向延伸的滑槽。
  6. 如权利要求5所述的可用于冲压、拉伸和挤压生产的力多级放大装置，其特征在于：所述机座上固定有位于所述半圆柱块体两端面处的两块导向板。
  7. 如权利要求1或2所述的可用于冲压、拉伸和挤压生产的力多级放大装置，其特征在于：所述机座和台板之间设有导向立柱，所述台板穿设在导向立柱上并可沿导向立柱上下移动。
  8. 如权利要求1或2所述的可用于冲压、拉伸和挤压生产的力多级放大装置，其特征在于：所述回拉杆的一端制为具有条形支座孔的支座部，所述条形支座孔内设有可在支座孔内前后移动并固定在销轴上的轴套，所述回拉杆一端上螺接有穿过支座部并与轴套螺接固定的调节螺栓。
  9. 如权利要求1或2所述的可用于冲压、拉伸和挤压生产的力多级放大装置，其特征在于：所述连杆组成偶数倍的配置在所述推块两相对侧处。
  10. 如权利要求1或2所述的可用于冲压、拉伸和挤压生产的力多级放大装置，其特征在于：所述推块是由多个分别制有弧面轮廓和弧形滑槽的块体组成。
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