Driving device of punch press sliding block

Abstract

The invention relates to a driving device for a slide block of a punching machine, which comprises a slide block, a first driving rod group, a second driving rod group, a driving shaft, a driven shaft and a power unit, and is characterized in that the first driving rod group is matched with the second driving rod group, and the driving shaft, the driven shaft and the power unit are in meshing transmission. Therefore, the sliding block has a good supporting effect in the stamping operation process, and the stamping quality is improved. In addition, the power unit controls the meshing position of the driving shaft relative to the first driving rod group, so that the stroke of the sliding block can be changed, and the effect that the stroke of the sliding block is easy to adjust is achieved.

Description

Technical Field

[0001] The present invention relates to a slider of a punching press, and more particularly to a driving device for a slider of a punching press. Background Art

[0002] A punching press mainly applies pressure to a metal material through a slider to cause plastic deformation thereof, so as to obtain the required shape and precision. Generally, it is used in conjunction with a mold and is an important device for producing metal mechanical parts.

[0003] The actuation mode of the slider of the punching press is to use mechanical or hydraulic force to convert rotational motion into linear motion, so that the slider drives the mold to perform stamping processing on the metal material. The up and down movement of the slider is usually controlled by a transmission mechanism such as a crankshaft, a connecting rod, an eccentric gear or a toggle joint, and is coordinated with a clutch and a brake to start or stop the slider. For such a transmission mechanism of the slider, the cyclic path of the crankshaft driving the connecting rod is the same. Therefore, an adjustment mechanism for adjusting the height position of the slider is additionally provided on the connecting rod, so that the starting or ending height of the connecting rod driving the slider is different, so as to adjust the appropriate actuation stroke of the slider in response to different mold heights or stamped parts. However, such a design of the transmission mechanism combined with the adjustment mechanism will increase the complexity of the overall structure and is not easy to adjust. In addition, during stamping processing, with a single connecting rod as the transmission of the punching force, the support of the force is limited. Therefore, how to develop a driving device for a slider of a punching press is an urgent problem to be solved at present. Summary of the Invention

[0004] The purpose of the present invention is to provide a driving device for a slider of a punching press that can solve one of the above problems.

[0005] To achieve the foregoing purpose, the present invention provides a driving device for a slider of a punching press, comprising: a slider; a first driving rod group, including a first driving rod, a first left rack, and a first right rack, the first driving rod being fixedly provided on the slider, and the first left rack and the first right rack being adjacently provided on the first driving rod; a second driving rod group, including a second driving rod, a second left rack, and a second right rack, the second driving rod being fixedly provided on the slider and corresponding to the first driving rod, the second left rack and the second right rack being adjacently provided on the second driving rod and respectively facing the first left rack and the first right rack; a driving shaft, having a driving shaft portion, a first driving gear provided on the driving shaft portion and meshing with the first left rack, and a second driving gear provided on the driving shaft portion and meshing with the first right rack; a driven shaft, having a driven shaft portion, a first driven gear provided on the driven shaft portion and meshing between the second left rack and the first driving gear, and a second driven gear provided on the driven shaft portion and meshing between the second right rack and the second driving gear; and a power unit, power-connected to the driving shaft and finally driving the driving shaft to rotate.

[0006] The functions of the present invention are as follows: With the design that the first driving rod group, the second driving rod group, the driving shaft, the driven shaft, and the power unit are all in meshing transmission, the slider can have a better supporting effect during the stamping operation, so as to improve the stamping quality; in addition, by controlling the meshing position of the driving shaft relative to the first driving rod group by the power unit, the stroke of the slider can be changed, and the slider stroke adjustment is simple and effective.

[0007] Preferably, the first left rack has a plurality of first left teeth arranged obliquely, the first right rack has a plurality of first right teeth arranged obliquely, and the inclination directions of the first right teeth and the first left teeth are different; the second left rack has a plurality of second left teeth arranged obliquely, the second right rack has a plurality of second right teeth arranged obliquely, and the inclination directions of the second right teeth and the second left teeth are different; the first driving gear of the driving shaft has a plurality of first driving teeth meshing with the first left teeth, and the second driving gear has a plurality of second driving teeth meshing with the first right teeth; the first driven gear of the driven shaft has a plurality of first driven teeth meshing between the second left teeth and the first driving teeth, and the second driven gear has a plurality of second driven teeth meshing between the second right teeth and the second driving teeth.

[0008] Preferably, the first left tooth has a first left tooth inner end adjacent to the first right tooth and a first left tooth outer end opposite to the first left tooth inner end, and the first left tooth slopes downward from the first left tooth inner end towards the first left tooth outer end; the first right tooth has a first right tooth inner end adjacent to the first left tooth and a first right tooth outer end opposite to the first right tooth inner end, and the first right tooth slopes downward from the first right tooth inner end towards the first right tooth outer end.

[0009] Preferably, the second left tooth has a second left tooth inner end adjacent to the second right tooth and a second left tooth outer end opposite to the second left tooth inner end, and the second left tooth slopes downward from the second left tooth inner end towards the second left tooth outer end; the second right tooth has a second right tooth inner end adjacent to the second left tooth and a second right tooth outer end opposite to the second right tooth inner end, and the second right tooth slopes downward from the second right tooth inner end towards the second right tooth outer end.

[0010] Preferably, the slider has a slider top surface, the first driving rod has a first lower rod portion fixedly arranged on one side of the slider top surface and a first upper rod portion opposite to the first lower rod portion, and the first left rack and the first right rack are arranged adjacent to each other on the first upper rod portion.

[0011] Preferably, the second driving rod has a second lower rod portion fixedly provided on the other side of the top surface of the slider, and a second upper rod portion opposite to the second lower rod portion. The second left rack and the second right rack are adjacently provided on the second upper rod portion.

[0012] Preferably, the power unit includes a power source, a first reduction module power-connected to the power source, and a second reduction module power-connected to the first reduction module.

[0013] Preferably, the power source is a servo motor.

[0014] Preferably, the first reduction module is a reduction gear.

[0015] Preferably, the second reduction module includes an output gear and an input gear. The output gear has a first fixing portion sleeved on the driving shaft portion and a plurality of first tooth portions surrounding the first fixing portion. The input gear has a second fixing portion power-connected to the first reduction module, a plurality of second tooth portions surrounding the second fixing portion and meshing with the first tooth portions. The number of teeth of the second tooth portions is less than that of the first tooth portions.

[0016] Similarly for achieving the foregoing purpose, the present invention further provides a driving device for a punch slider, including: a slider; a first driving rod group including a first driving rod, a first left rack, and a first right rack. The first driving rod is fixedly provided on the slider, and the first left rack and the first right rack are adjacently provided on the first driving rod; a second driving rod group including a second driving rod, a second left rack, and a second right rack. The second driving rod is fixedly provided on the slider and corresponds to the first driving rod. The second left rack and the second right rack are adjacently provided on the second driving rod and respectively face the first left rack and the first right rack; a driving shaft having a driving shaft portion, a first driving gear provided on the driving shaft portion and meshing with the first left rack, and a second driving gear provided on the driving shaft portion and meshing with the first right rack; a driven shaft having a driven shaft portion, a first driven gear provided on the driven shaft portion and meshing with the second left rack, and a second driven gear provided on the driven shaft portion and meshing with the second right rack; and a power unit including an input gear, an output gear, and an intermediate gear. The output gear is fixedly provided on the driving shaft portion of the driving shaft and meshes with the input gear. The intermediate gear is fixedly provided on the driven shaft portion of the driven shaft and meshes with the output gear. Description of the Drawings

[0017] Figure 1 is a perspective view of the first embodiment of the present invention, showing the state of the present invention assembled on a machine table;

[0018] Figure 2 is Figure 1Upper view;

[0019] Figure 3 is the exploded perspective view of the first embodiment of the present invention;

[0020] Figure 4 is the assembled perspective view of the first embodiment of the present invention;

[0021] Figure 5 is the upper view of the first embodiment of the present invention;

[0022] Figure 6 is the side view of the first embodiment of the present invention;

[0023] Figure 7 is the side view of the first embodiment of the present invention from another perspective;

[0024] Figure 8 is the actuating view of the first embodiment of the present invention;

[0025] Figure 9 is the exploded perspective view of the second embodiment of the present invention;

[0026] Figure 10 is the assembled perspective view of the second embodiment of the present invention; and

[0027] Figure 11 is the assembled perspective view of the third embodiment of the present invention.

[0028] Explanation of reference numerals in the drawings:

[0029] 100... Machine platform

[0030] 10... Slide block

[0031] 11... Top surface of the slide block

[0032] 20... First driving rod group

[0033] 21... First driving rod

[0034] 211... First lower rod portion

[0035] 212... First upper rod portion

[0036] 22... First left rack

[0037] 221... First left tooth portion

[0038] 2211... Inner end of the first left tooth

[0039] 2212... Outer end of the first left tooth

[0040] 23... First right rack

[0041] 231... First right tooth portion

[0042] 2311…The inner end of the first right tooth

[0043] 2312…The outer end of the first right tooth

[0044] 30…The second driving rod group

[0045] 31…The second driving rod

[0046] 311…The second lower rod part

[0047] 312…The second upper rod part

[0048] 32…The second left rack

[0049] 321…The second left tooth part

[0050] 3211…The inner end of the second left tooth

[0051] 3212…The outer end of the second left tooth

[0052] 33…The second right rack

[0053] 331…The second right tooth part

[0054] 3311…The inner end of the second right tooth

[0055] 3312…The outer end of the second right tooth

[0056] 40…The driving shaft

[0057] 41…The driving shaft part

[0058] 42…The first driving gear

[0059] 421…The first driving tooth part

[0060] 43…The second driving gear

[0061] 431…The second driving tooth part

[0062] 50…The driven shaft

[0063] 51…The driven shaft part

[0064] 52…The first driven gear

[0065] 521…The first driven tooth part

[0066] 53…The second driven gear

[0067] 531…The second driven tooth part

[0068] A…The power unit

[0069] 60…The power source

[0070] 70…First reduction module

[0071] 71…Output shaft

[0072] 80…Second reduction module

[0073] 81…Output gear

[0074] 811…First fixing part

[0075] 812…First tooth part

[0076] 82…Input gear

[0077] 821…Second fixing part

[0078] 822…Second tooth part

[0079] 83…Idler gear Detailed implementation mode

[0080] Before the present invention is described in detail, it should be noted that in the following description, similar components and parts are denoted by the same numbers.

[0081] Refer to Figure 1 and Figure 2 As shown, the first embodiment of the present invention provides a driving device for a punch slider. The driving device for the punch slider is assembled on a machine table 100. With reference to Figures 3 to 7 As shown, the driving device for the punch slider mainly consists of a slider 10, a first driving rod group 20, a second driving rod group 30, a driving shaft 40, a driven shaft 50, and a power unit A, wherein:

[0082] The slider 10 is movably arranged on the machine table 100 and can reciprocate up and down. The slider 10 further has a slider top surface 11.

[0083] The first driving rod group 20 includes a first driving rod 21, a first left rack 22, and a first right rack 23. The first driving rod 21 is fixedly arranged on the slider 10, and the first left rack 22 and the first right rack 23 are arranged adjacent to each other on the first driving rod 21. In this embodiment, the first driving rod 21 has a first lower rod portion 211 fixedly arranged on one side of the top surface 11 of the slider and a first upper rod portion 212 opposite to the first lower rod portion 211, and the first left rack 22 and the first right rack 23 are arranged adjacent to each other on the first upper rod portion 212. In addition, the first left rack 22 has a plurality of first left teeth 221 arranged obliquely, the first right rack 23 has a plurality of first right teeth 231 arranged obliquely, and the inclination directions of the first right teeth 231 and the first left teeth 221 are different, and both are inclined downward from the inner side to the outer side. The first left teeth 221 have a first left tooth inner end 2211 adjacent to the first right teeth 231 and a first left tooth outer end 2212 opposite to the first left tooth inner end 2211, and the first left teeth 221 are inclined downward from the first left tooth inner end 2211 towards the first left tooth outer end 2212. The first right teeth 231 have a first right tooth inner end 2311 adjacent to the first left teeth 221 and a first right tooth outer end 2312 opposite to the first right tooth inner end 2311, and the first right teeth 231 are inclined downward from the first right tooth inner end 2311 towards the first right tooth outer end 2312.

[0084] The second driving rod group 30 includes a second driving rod 31, a second left rack 32, and a second right rack 33. The second driving rod 31 is fixedly arranged on the slider 10 and corresponds to the first driving rod 21. The second left rack 32 and the second right rack 33 are arranged adjacent to the second driving rod 31 and face the first left rack 22 and the first right rack 23 respectively. In this embodiment, the second driving rod 31 has a second lower rod portion 311 fixedly arranged on the other side of the top surface 11 of the slider and a second upper rod portion 312 opposite to the second lower rod portion 311. The second left rack 32 and the second right rack 33 are arranged adjacent to the second upper rod portion 312. In addition, the second left rack 32 has a plurality of second left teeth 321 arranged obliquely, and the second right rack 33 has a plurality of second right teeth 331 arranged obliquely. The inclination directions of the second right teeth 331 and the second left teeth 321 are different, and both are inclined downward from the inner side to the outer side. The second left teeth 321 have a second left tooth inner end 3211 adjacent to the second right teeth 331 and a second left tooth outer end 3212 opposite to the second left tooth inner end 3211. The second left teeth 321 are inclined downward from the second left tooth inner end 3211 towards the second left tooth outer end 3212. The second right teeth 331 have a second right tooth inner end 3311 adjacent to the second left teeth 321 and a second right tooth outer end 3312 opposite to the second right tooth inner end 3311. The second right teeth 331 are inclined downward from the second right tooth inner end 3311 towards the second right tooth outer end 3312.

[0085] The driving shaft 40 has a driving shaft portion 41, a first driving gear 42 arranged on the driving shaft portion 41 and meshing with the first left rack 22, and a second driving gear 43 arranged on the driving shaft portion 41 and meshing with the first right rack 23. In this embodiment, the first driving gear 42 of the driving shaft 40 has a plurality of first driving teeth 421 arranged obliquely and meshing with the first left teeth 221, and the second driving gear 43 has a plurality of second driving teeth 431 arranged obliquely and meshing with the first right teeth 231. The inclination directions of the second driving teeth 431 and the first driving teeth 421 are different. In addition, both the first driving teeth 421 and the second driving teeth 431 are inclined downward from the inner side to the outer side to stably mesh with the first left teeth 221 of the first left rack 22 and the first right teeth 231 of the first right rack 23 respectively.

[0086] The driven shaft 50 has a driven shaft portion 51, a first driven gear 52 provided on the driven shaft portion 51 and meshing between the second left rack 32 and the first driving gear 42, and a second driven gear 53 provided on the driven shaft portion 51 and meshing between the second right rack 33 and the second driving gear 43. In this embodiment, the first driven gear 52 of the driven shaft 50 has a plurality of first driven tooth portions 521 arranged obliquely and meshing between the second left tooth portion 321 and the first driving tooth portion 421. The second driven gear 53 has a plurality of second driven tooth portions 531 arranged obliquely and meshing between the second right tooth portion 331 and the second driving tooth portion 431, and the inclination directions of the second driven tooth portion 531 and the first driven tooth portion 521 are different. In addition, both the first driven tooth portion 521 and the second driven tooth portion 531 incline downward from the inner side to the outer side, so that the first driven tooth portion 521 stably meshes with the first driving tooth portion 421 and the second left tooth portion 321, and the second driven tooth portion 531 stably meshes with the second driving tooth portion 431 and the second right tooth portion 331.

[0087] The power unit A is power-connected to the driving shaft 40 and finally drives the driving shaft 40 to rotate. In this embodiment, the power unit A includes a power source 60, a first reduction module 70 power-connected to the power source 60, and a second reduction module 80 power-connected to the first reduction module 70. The power source 60 is a servo motor to accurately drive the distance of the up-and-down displacement of the slider 10. The first reduction module 70 has an output shaft 71 and is a reduction gear. The type of the first reduction module 70 can be a gear reduction gear, such as a planetary reduction gear, but is not limited thereto. It can also be a cylindrical gear reduction gear, a worm and worm gear reduction gear, a cycloidal pinwheel reduction gear, etc. The first reduction module 70 can also be a harmonic reduction gear, etc., so as to have characteristics such as small volume, large transmission torque, and high transmission efficiency. The second reduction module 80 includes an output gear 81 and an input gear 82. The output gear 81 has a first fixing portion 811 fixed on the driving shaft portion 41 and a plurality of first tooth portions 812 surrounding the first fixing portion 811. The input gear 82 has a second fixing portion 821 power-connected to the output shaft 71 of the first reduction module 70 and a plurality of second tooth portions 822 surrounding the second fixing portion 821 and meshing with the first tooth portions 812. The number of teeth of the second tooth portions 822 is less than the number of teeth of the first tooth portions 812.

[0088] The above is the configuration description of the main components of the first embodiment of the present invention. The operation mode and efficacy of the present invention are described as follows.

[0089] With reference to Figure 7 and Figure 8As shown in the figure, when the stamping operation of the present invention is carried out, the power source 60 is controlled to act, and then the rotational speed is reduced and the torque is increased through the first reduction module 70, and the output shaft 71 of the first reduction module 70 rotates counterclockwise, thereby driving the second reduction module 80 to act, and reducing the rotational speed and increasing the torque again, and the input gear 82 of the second reduction module 80 rotates counterclockwise synchronously, and the output gear 81 rotates clockwise synchronously. The output gear 81 rotating clockwise makes the driving shaft 40 rotate clockwise and the driven shaft 50 rotate counterclockwise, thereby driving the first driving rod 21 of the first driving rod group 20 and the second driving rod 31 of the second driving rod group 30 to displace downward synchronously, so as to drive the slider 10 to displace downward synchronously to perform the stamping operation. After the stamping operation is completed, by controlling the first reduction module 70 to act in the reverse direction by the power source 60, the slider 10 can be displaced from the bottom dead center to the top dead center direction to wait for the next stamping operation.

[0090] Accordingly, by the design that the first driving rod group 20 is matched with the second driving rod group 30, the driving shaft 40, the driven shaft 50, and the power unit A are all in meshing transmission, the slider 10 can have a better supporting effect during the stamping operation, so as to improve the stamping quality; in addition, by controlling the meshing position of the driving shaft 40 relative to the first driving rod group 20 by the power unit A, the stroke of the slider 10 can be changed, and the stroke of the slider 10 can be adjusted simply and easily.

[0091] It is worth mentioning that, referring to Figure 3 、 Figure 4 As shown in the figure, the present invention particularly designs the inclination directions of the first left tooth part 221 of the first left rack 22 and the first right tooth part 231 of the first right rack 23 to be different. Both of them are inclined downward from the inner side to the outer side, and the inclination directions of the first driving tooth part 421 and the second driving tooth part 431 of the driving shaft 40 are designed to be different. Both of them are inclined downward from the inner side to the outer side, so as to improve the meshing stability between the driving shaft 40 and the first left rack 22 and the first right rack 23, effectively eliminate the axial displacement and stress, and are applicable to high-speed, high-load, and high-precision stamping operations. At the same time, during the meshing drive process, it is in continuous point contact, so it has the effect of less noise and impact.

[0092] Similarly, in the present invention, the inclination directions of the second left tooth portions 321 of the second left rack 32 and the second right tooth portions 331 of the second right rack 33 are designed differently. One is inclined downward from the inner side to the outer side, and the inclination directions of the first driven tooth portion 521 and the second driven tooth portion 531 of the driven shaft 50 are designed differently. One is inclined downward from the inner side to the outer side, so as to improve the meshing stability between the driven shaft 50 and the second left rack 32 and the second right rack 33, and between the driven shaft 50 and the driving shaft 40, effectively eliminate axial displacement and stress, and are applicable to high-speed, high-load, and high-precision stamping operations. At the same time, during the meshing drive process, it is in continuous point contact, so it has the effect of less noise and impact.

[0093] Refer to Figure 9 and Figure 10 As shown, the second embodiment of the present invention provides a driving device for a punch slider, which is different from the first embodiment in that:

[0094] The first left tooth portions 221 of the first left rack 22, the first right tooth portions 231 of the first right rack 23, and the first driving tooth portion 421 and the second driving tooth portion 431 of the driving shaft 40 are designed to be flat teeth, so as to reduce the manufacturing cost and ensure the accuracy and stability of the meshing transmission between the driving shaft 40 and the first left rack 22 and the first right rack 23.

[0095] The second left tooth portions 321 of the second left rack 32 and the second right tooth portions 331 of the second right rack 33, and the first driven tooth portion 521 and the second driven tooth portion 531 of the driven shaft 50 are designed to be flat teeth, so as to reduce the manufacturing cost and ensure the accuracy and stability of the transmission between the driven shaft 50 and the second left rack 32 and the second right rack 33, and between the driven shaft 50 and the driving shaft 40.

[0096] Refer to Figure 11 As shown, the third embodiment of the present invention provides a driving device for a punch slider, which is different from the first embodiment in that the driving shaft 40 and the driven shaft 50 are indirectly meshed and driven synchronously, but still drive the first driving rod group 20 and the second driving rod group 30 to rise and fall synchronously; that is:

[0097] The first driving gear 42 and the second driving gear 43 of the driving shaft 40 are respectively meshed with the first left rack 22 and the first right rack 23 of the first driving rod group 20.

[0098] The first driven gear 52 and the second driven gear 53 of the driven shaft 50 are respectively meshed with the second left rack 32 and the second right rack 32 of the second driving rod group 30.

[0099] The power unit A has the output gear 81, the input gear 82, and an intermediate gear 83. The output gear 81 is fixedly arranged on the driving shaft portion 41 of the driving shaft 40 and meshes with the input gear 82. The intermediate gear 83 is fixedly arranged on the driven shaft portion 51 of the driven shaft 50 and meshes with the output gear 81. Therefore, when the power unit A operates, the output shaft 71 drives the input gear 82 to rotate. The rotating input gear 82 meshes with and drives the output gear 81, causing the output gear 81 to not only drive the driving shaft 40 to rotate but also mesh with and drive the intermediate gear 83 to rotate, enabling the intermediate gear 83 to drive the driven shaft 50 to rotate, thereby forming another implementation state.

Claims

1. A driving device for a punch slider, characterized in that, The driving device of the punch slider includes: A slider; A first driving rod group, including a first driving rod, a first left rack, and a first right rack. The first driving rod is fixedly arranged on the slider, and the first left rack and the first right rack are arranged adjacent to each other on the first driving rod; A second driving rod group, including a second driving rod, a second left rack, and a second right rack. The second driving rod is fixedly arranged on the slider and corresponds to the first driving rod. The second left rack and the second right rack are arranged adjacent to each other on the second driving rod and face the first left rack and the first right rack respectively; A driving shaft, having a driving shaft portion, a first driving gear arranged on the driving shaft portion and meshing with the first left rack, and a second driving gear arranged on the driving shaft portion and meshing with the first right rack; A driven shaft, having a driven shaft portion, a first driven gear arranged on the driven shaft portion and meshing between the second left rack and the first driving gear, and a second driven gear arranged on the driven shaft portion and meshing between the second right rack and the second driving gear; And A power unit, power-connected to the driving shaft and finally driving the driving shaft to rotate.

2. The driving device of the punch slider according to claim 1, characterized in that, The first left rack has a plurality of first left tooth portions arranged obliquely, the first right rack has a plurality of first right tooth portions arranged obliquely, and the inclination directions of the first right tooth portions and the first left tooth portions are different; the second left rack has a plurality of second left tooth portions arranged obliquely, the second right rack has a plurality of second right tooth portions arranged obliquely, and the inclination directions of the second right tooth portions and the second left tooth portions are different; the first driving gear of the driving shaft has a plurality of first driving tooth portions meshing with the first left tooth portions, and the second driving gear has a plurality of second driving tooth portions meshing with the first right tooth portions; the first driven gear of the driven shaft has a plurality of first driven tooth portions meshing between the second left tooth portions and the first driving tooth portions, and the second driven gear has a plurality of second driven tooth portions meshing between the second right tooth portions and the second driving tooth portions.

3. The driving device of the punch slider according to claim 2, characterized in that, The first left tooth portion has a first left tooth inner end adjacent to the first right tooth portion and a first left tooth outer end opposite to the first left tooth inner end, and the first left tooth portion inclines downward from the first left tooth inner end towards the first left tooth outer end; the first right tooth portion has a first right tooth inner end adjacent to the first left tooth portion and a first right tooth outer end opposite to the first right tooth inner end, and the first right tooth portion inclines downward from the first right tooth inner end towards the first right tooth outer end.

4. The driving device of the punch slider according to claim 2, characterized in that, The second left tooth part has a second left tooth inner end adjacent to the second right tooth part and a second left tooth outer end opposite to the second left tooth inner end. The second left tooth part slopes downward from the second left tooth inner end towards the second left tooth outer end. The second right tooth part has a second right tooth inner end adjacent to the second left tooth part and a second right tooth outer end opposite to the second right tooth inner end. The second right tooth part slopes downward from the second right tooth inner end towards the second right tooth outer end.

5. The driving device of the punch slider according to claim 1 or 2, characterized in that, The slider has a slider top surface. The first driving rod has a first lower rod part fixedly arranged on one side of the slider top surface and a first upper rod part opposite to the first lower rod part. The first left rack and the first right rack are arranged adjacent to each other on the first upper rod part.

6. The drive device of the punch slider according to claim 5, characterized in that, The second driving rod has a second lower rod part fixedly arranged on the other side of the slider top surface and a second upper rod part opposite to the second lower rod part. The second left rack and the second right rack are arranged adjacent to each other on the second upper rod part.

7. The driving device of the punch slider according to claim 1 or 2, characterized in that, The power unit includes a power source, a first reduction module power-connected to the power source, and a second reduction module power-connected to the first reduction module.

8. The driving device of the punch slider according to claim 7, characterized in that, The power source is a servo motor and the first reduction module is a reduction gear.

9. The driving device of the punch slider according to claim 7, characterized in that, The second reduction module includes an output gear and an input gear. The output gear has a first sleeved part sleeved on the driving shaft part and a plurality of first tooth parts surrounding the first sleeved part. The input gear has a second sleeved part power-connected to the first reduction module, a plurality of second tooth parts surrounding the second sleeved part and meshing with the first tooth parts. The number of teeth of the second tooth parts is more than that of the first tooth parts.

10. A driving device for a punch slider, characterized in that, The driving device of the punching machine slider includes: A slider; A first driving rod group, including a first driving rod, a first left rack, and a first right rack. The first driving rod is fixedly arranged on the slider. The first left rack and the first right rack are arranged adjacent to each other on the first driving rod; A second driving rod group, including a second driving rod, a second left rack, and a second right rack. The second driving rod is fixedly arranged on the slider and corresponds to the first driving rod. The second left rack and the second right rack are arranged adjacent to each other on the second driving rod and face the first left rack and the first right rack respectively; A driving shaft, having a driving shaft part, a first driving gear arranged on the driving shaft part and meshing with the first left rack, and a second driving gear arranged on the driving shaft part and meshing with the first right rack; A driven shaft, having a driven shaft part, a first driven gear arranged on the driven shaft part and meshing with the second left rack, and a second driven gear arranged on the driven shaft part and meshing with the second right rack; and A power unit, including an input gear, an output gear, and an intermediate gear. The output gear is fixedly arranged on the driving shaft part of the driving shaft and meshes with the input gear. The intermediate gear is fixedly arranged on the driven shaft part of the driven shaft and meshes with the output gear.

Images