A punching device for bipolar plate processing

Abstract

The present invention relates to the technical field of bipolar plate processing, and discloses a punching device for bipolar plate processing, which includes a positioning table and a punching assembly. The positioning table is used for positioning and fixing the bipolar plate. Each group of first positioning members is fixedly provided with a first connecting sleeve, and a punching sleeve in the punching assembly is arranged inside the first connecting sleeve. The bottom of the punching sleeve is fixedly connected with a punching head. Through the setting of the punching assembly, not only can the punching sleeve in the punching assembly effectively complete the punching effect on the bipolar plate in the downward movement state, but also when the punching sleeve is reset later, by making the connecting rod move correspondingly, the first grinding block arranged inside the punching sleeve can extend out of the punching sleeve, so as to contact the inner wall of the punching hole of the bipolar plate. And because the punching sleeve rotates when it is reset, the first grinding block can also complete the grinding effect on the inner wall of the punching hole of the bipolar plate in a rotating state.

Description

Technical Field

[0001] The present invention relates to the technical field of bipolar plate processing, and specifically to a punching device for bipolar plate processing. Background Art

[0002] The bipolar plate of an electrolytic cell is a key component in the electrolytic cell, mainly playing roles such as conducting electrons, isolating hydrogen and oxygen, and heat transfer. Currently, for the processing procedure of the bipolar plate of the electrolytic cell, first, a stamping die is used to draw the bipolar plate to form a transverse profile and a longitudinal profile on the bipolar plate correspondingly. Secondly, air ports are punched on the longitudinal profile of the bipolar plate through the cooperation of a punch and a die.

[0003] In the existing punching equipment, generally, it can only perform punching processing on the bipolar plate of the electrolytic cell alone. And for this kind of punching equipment, after punching, corresponding scratches and burrs often occur on the inner wall of the punched hole and the outer edge of the punching bottom. In response to this phenomenon, generally, users will perform secondary grinding treatment on the punched bipolar plate, but this treatment will overall increase the processing time of the bipolar plate of the electrolytic cell.

[0004] Therefore, it does not meet the existing requirements, and for this reason, we propose a punching device for bipolar plate processing. Summary of the Invention

[0005] The present invention provides a punching device for bipolar plate processing, which has beneficial effects and solves the problems mentioned in the above background art.

[0006] The present invention provides the following technical solution: A punching device for bipolar plate processing, including a positioning table and a punching assembly. The positioning table is used to position and fix the bipolar plate, and several groups of first positioning members are fixedly arranged on the outer edge of the top of the positioning table. A first connecting sleeve is fixedly arranged on each group of first positioning members, and a punching sleeve in the punching assembly is arranged inside the first connecting sleeve. The bottom of the punching sleeve is fixedly connected with a punching head, and the punching head is used to punch the bipolar plate;

[0007] A moving spiral groove is also opened on the inner wall of the first connecting sleeve. The moving spiral groove is communicated with a moving straight groove, and the moving straight groove is opened on the inner wall of the first connecting sleeve. The bottom end of the moving straight groove is rotatably provided with a limiting flap through a corresponding rotating rod and a torsion spring, and the top end of the moving spiral groove is rotatably provided with a limiting flap through a corresponding rotating rod and a torsion spring.

[0008] As an alternative solution of the punching device for bipolar plate processing according to the present invention, wherein: an accommodation cavity is formed inside the punching sleeve, and a supporting base is movably arranged inside the accommodation cavity. The supporting base is slidably arranged inside the second chute through a corresponding sliding rod. The second chute is formed on the inner wall of the accommodation cavity. A limiting block is further fixedly arranged on the top of the supporting base, and a first pressing inclined surface and a second pressing inclined surface are respectively formed on the limiting block.

[0009] As an alternative solution of the punching device for bipolar plate processing according to the present invention, wherein: a pressing member is arranged on one side of the limiting block. The pressing member is in contact with the first pressing inclined surface, and the pressing member is slidably arranged inside the first chute through a corresponding sliding rod.

[0010] As an alternative solution of the punching device for bipolar plate processing according to the present invention, wherein: the first chute is also formed on the inner wall of the accommodation cavity. One side surface of the pressing member close to the limiting block is fixedly connected to one end of a connecting sliding rod.

[0011] As an alternative solution of the punching device for bipolar plate processing according to the present invention, wherein: the other end of the connecting sliding rod penetrates through the punching sleeve, and the other end of the connecting sliding rod is slidably arranged inside the moving straight groove through a corresponding ball.

[0012] As an alternative solution of the punching device for bipolar plate processing according to the present invention, wherein: a connecting rod is fixedly connected to the bottom of the supporting base. The connecting rod is also slidably arranged inside the second chute through a corresponding sliding rod. Two groups of second connecting sleeves are symmetrically arranged on the connecting rod. The second connecting sleeves are rotatably arranged inside the connecting rod through corresponding rotating rods. A first connecting rotating rod is slidably arranged inside the second connecting sleeve.

[0013] As an alternative solution of the punching device for bipolar plate processing according to the present invention, wherein: the end of the first connecting rotating rod away from the second connecting sleeve is rotatably arranged on a corresponding first grinding block through a corresponding rotating rod, and a first spring is arranged between the first connecting rotating rod and the second connecting sleeve.

[0014] As an alternative solution of the punching device for bipolar plate processing according to the present invention, wherein: moving blocks are symmetrically arranged on the punching head. The moving blocks are slidably arranged inside the third chute through corresponding sliding rods. The third chute is formed on the top surface of the punching head. A third spring is arranged between the two moving blocks.

[0015] As an alternative solution for the punching device used in the processing of bipolar plates according to the present invention, wherein: a sliding cavity is further formed on the moving block, one end of a second connecting rotating rod is slidably arranged inside the sliding cavity, and the other end of the second connecting rotating rod is rotatably arranged on the connecting rod. A second grinding block is also movably arranged on the moving block. A second spring is arranged between the second grinding block and the moving block. A limiting hole corresponding to the shape of the moving block is further formed on the surface of the punching sleeve.

[0016] As an alternative solution for the punching device used in the processing of bipolar plates according to the present invention, wherein: a driving cylinder is further arranged above the punching sleeve. The driving cylinder is fixedly arranged between two second positioning members. The second positioning members are fixedly arranged on the corresponding first positioning members. A fixed connection is formed between the driving cylinder and the pressing plate through the corresponding output end. The pressing plate is arranged inside the accommodating cavity, and the pressing plate is also slidably arranged on the inner wall of the top of the accommodating cavity through corresponding balls.

[0017] The present invention has the following beneficial effects:

[0018] 1. For the punching device used in the processing of bipolar plates, through the setting of the punching assembly, not only can the punching sleeve in the punching assembly effectively complete the punching effect on the bipolar plate in the downward movement state, but also when the punching sleeve is reset later, by making the connecting rod move correspondingly, the first grinding block arranged inside the punching sleeve can extend out of the punching sleeve, so as to contact the inner wall of the punching hole of the bipolar plate. And since the punching sleeve rotates when it is reset, the first grinding block can also complete the grinding effect on the inner wall of the punching hole of the bipolar plate in a rotating state.

[0019] 2. For the punching device used in the processing of bipolar plates, through the setting of the limiting block, the pressing member and the connecting rod, not only can the connecting rod drive the first grinding block to move when moving downward, so as to complete the grinding effect on the inner wall of the punching hole of the bipolar plate, but also through the setting of the second connecting rotating rod, the two moving blocks arranged on the punching head can also move correspondingly following the movement of the connecting rod, so that the second grinding block arranged on the moving block can smoothly extend out of the punching sleeve, thus completing the grinding effect on the outer edge of the bottom of the punching hole of the bipolar plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a schematic side view structure diagram of the punching sleeve of the present invention.

[0022] Figure 3 It is a schematic diagram of the first sectional view of the local punching sleeve of the present invention.

[0023] Figure 4 Schematic diagram of the internal structure of the local punching sleeve of the present invention.

[0024] Figure 5 Schematic diagram of the explosion structure of the supporting base and the extrusion part of the present invention.

[0025] Figure 6 Schematic diagram of the sectional structure of the local connecting rod of the present invention.

[0026] Figure 7 Schematic diagram of the second sectional structure of the local punching sleeve of the present invention.

[0027] Figure 8 Of the present invention Figure 7 Enlarged structure diagram at position B.

[0028] Figure 9 Schematic diagram of the sectional structure of the local first connecting sleeve of the present invention.

[0029] Figure 10 Of the present invention Figure 9 Enlarged structure diagram at position A.

[0030] In the figure: 1, positioning table; 2, punching assembly;

[0031] 101, first positioning member; 102, first connecting sleeve; 103, moving straight groove; 104, moving spiral groove; 105, limiting flap; 106, second positioning member;

[0032] 201, punching sleeve; 202, driving cylinder; 203, connecting slide bar; 204, first grinding block; 205, supporting base; 206, limiting block; 207, extrusion part; 208, connecting rod; 209, second connecting sleeve; 210, first connecting rotating rod; 211, first spring; 212, punching head; 213, extrusion plate; 214, second connecting rotating rod; 215, moving block; 216, second grinding block; 217, second spring; 218, third spring; 219, first extrusion inclined plane; 220, second extrusion inclined plane; 221, accommodating cavity; 222, first sliding groove; 223, second sliding groove; 224, third sliding groove; 225, sliding cavity; 226, limiting hole; 227, fourth spring. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Example 1. Please refer to Figures 1-6 and Figure 9 and Figure 10 , a punching device for bipolar plate processing, including a positioning table 1 and a punching assembly 2. The positioning table 1 is used to position and fix the bipolar plate, and several groups of first positioning members 101 are fixedly arranged on the outer edge of the top of the positioning table 1. A first connecting sleeve 102 is fixedly arranged on each group of first positioning members 101, and a punching sleeve 201 in the punching assembly 2 is arranged inside the first connecting sleeve 102. The bottom of the punching sleeve 201 is fixedly connected with a punching head 212, and the punching head 212 is used to punch the bipolar plate;

[0035] A moving spiral groove 104 is also opened on the inner wall of the first connecting sleeve 102. The moving spiral groove 104 is communicated with the moving straight groove 103. The moving straight groove 103 is opened on the inner wall of the first connecting sleeve 102. The bottom end of the moving straight groove 103 is rotatably provided with a limiting flap 105 through a corresponding rotating rod and torsion spring, and the top end of the moving spiral groove 104 is rotatably provided with a limiting flap 105 through a corresponding rotating rod and torsion spring.

[0036] An accommodating cavity 221 is opened inside the punching sleeve 201, and a supporting base 205 is movably arranged inside the accommodating cavity 221. The supporting base 205 is slidably arranged inside the second sliding groove 223 through a corresponding sliding rod. The second sliding groove 223 is opened on the inner wall of the accommodating cavity 221. A limiting block 206 is also fixedly arranged on the top of the supporting base 205. A first pressing inclined surface 219 and a second pressing inclined surface 220 are respectively opened on the limiting block 206.

[0037] One side of the limiting block 206 is also provided with an extrusion member 207. The extrusion member 207 is in contact with the first pressing inclined surface 219, and the extrusion member 207 is slidably arranged inside the first sliding groove 222 through a corresponding sliding rod.

[0038] The first sliding groove 222 is also opened on the inner wall of the accommodating cavity 221. The surface of one side of the extrusion member 207 close to the limiting block 206 is also fixedly connected with one end of a connecting sliding rod 203.

[0039] The other end of the connecting sliding rod 203 penetrates through the punching sleeve 201, and the other end of the connecting sliding rod 203 is slidably arranged inside the moving straight groove 103 through a corresponding ball.

[0040] The bottom of the supporting base 205 is fixedly connected with a connecting rod 208. The connecting rod 208 is also slidably arranged inside the second sliding groove 223 through a corresponding sliding rod. Two groups of second connecting sleeves 209 are symmetrically arranged on the connecting rod 208. The second connecting sleeves 209 are rotatably arranged inside the connecting rod 208 through a corresponding rotating rod, and a first connecting rotating rod 210 is also slidably arranged inside the second connecting sleeves 209.

[0041] One end of the first connecting rotating rod 210 away from the second connecting sleeve 209 is rotatably arranged on the corresponding first grinding block 204 through a corresponding rotating rod, and a first spring 211 is also arranged between the first connecting rotating rod 210 and the second connecting sleeve 209.

[0042] A driving cylinder 202 is also arranged above the punching sleeve 201. The driving cylinder 202 is fixedly arranged between two second positioning members 106. The second positioning members 106 are fixedly arranged on the corresponding first positioning members 101, and a fixed connection is formed between the driving cylinder 202 and the pressing plate 213 through a corresponding output end. The pressing plate 213 is arranged inside the accommodating cavity 221, and the pressing plate 213 is also slidably arranged on the inner wall of the top of the accommodating cavity 221 through corresponding balls.

[0043] In this embodiment: Before the user punches the bipolar plate, the bipolar plate to be punched needs to be placed inside the positioning table 1 first. A slot hole adapted to the punching head 212 is arranged inside the positioning table 1. At this time, the user can start the driving cylinder 202 arranged on the second positioning member 106. Since a fixed connection is formed between the driving cylinder 202 and the pressing plate 213 arranged inside the punching sleeve 201 through the output end, when the driving cylinder 202 is started, the punching sleeve 201 will move correspondingly inside the corresponding first connecting sleeve 102.

[0044] It should be noted that the pressing plate 213 is rotatably arranged on the inner wall of the top of the punching sleeve 201 through corresponding balls. This setting can not only effectively drive the punching sleeve 201 to move correspondingly to complete the punching effect on the bipolar plate, but also reduce the rotational friction through the setting of the balls when the punching sleeve 201 rotates during subsequent resetting, so as to better complete the grinding effect on the punched hole of the bipolar plate.

[0045] As the punching sleeve 201 moves, the punching head 212 fixedly arranged at the bottom of the punching sleeve 201 will gradually approach the bipolar plate and effectively complete the punching effect on the bipolar plate;

[0046] After the punching of the bipolar plate is completed, at this time, the user can reversely start the driving cylinder 202 to drive the punching sleeve 201 to reset correspondingly.

[0047] Since a connecting slide rod 203 is also arranged on the punching sleeve 201, on the one hand, one end of the connecting slide rod 203 is slidably arranged inside the moving straight groove 103 opened in the first connecting sleeve 102 through corresponding balls. This setting not only effectively ensures the stability of the punching sleeve 201 during movement, but also a limiting flap 105 is arranged at the bottom of the moving straight groove 103, and the flipping direction of the limiting flap 105 can only be downward;

[0048] Therefore, when the connecting slide bar 203 moves to the bottom of the moving straight groove 103 and passes through the limiting flap 105, if the punching sleeve 201 moves back, at this time, the connecting slide bar 203 cannot return through the moving straight groove 103. And a moving spiral groove 104 is also provided inside the first connecting sleeve 102, and the moving spiral groove 104 is communicated with the moving straight groove 103. Therefore, when the connecting slide bar 203 cannot return from the moving straight groove 103, through the moving inclined surface provided at the bottom of the moving straight groove 103, the connecting slide bar 203 will move from the moving straight groove 103 to the inside of the moving spiral groove 104, so that the connecting slide bar 203 can return from the inside of the moving spiral groove 104. This setting is to enable the connecting slide bar 203 to rotate correspondingly through the moving spiral groove 104 during the reset process, thereby driving the punching sleeve 201 to return in a rotating manner, so that the first grinding block 204 provided inside the punching sleeve 201 can complete the grinding effect on the punching hole during the reset process.

[0049] It should be noted that a corresponding limiting flap 105 is also provided at the top of the moving spiral groove 104, and the limiting flap 105 provided on the moving spiral groove 104 can only flip upward. And this setting is to enable the subsequent connecting slide bar 203 to be limited in its movement by the limiting flap 105 when it returns to the top end from the moving spiral groove 104, and a moving inclined surface is also provided between the moving spiral groove 104 and the moving straight groove 103 at the top;

[0050] Therefore, through this setting, when the connecting slide bar 203 returns to the top end, the connecting slide bar 203 will return to the inside of the moving straight groove 103 again, so that when punching again later, the punching sleeve 201 can move smoothly. At the same time, due to the spherical ball provided at the end of the connecting slide bar 203, when the spherical ball on the connecting slide bar 203 slides in the middle of the moving straight groove 103, because of the spherical ball on the connecting slide bar 203, the diameter of the spherical ball is larger than the connecting groove between the moving straight groove 103 and the moving spiral groove 104, so that the situation where the spherical ball on the connecting slide bar 203 accidentally slides into the inside of the moving spiral groove 104 before reaching both ends of the moving straight groove 103 during the sliding process in the moving straight groove 103 will not occur.

[0051] On the other hand, a fixed connection is formed between the other end of the connecting slide bar 203 and the extrusion member 207. The extrusion member 207 is slidably arranged inside the first chute 222 through a corresponding slide bar. At the same time, since the moving spiral groove 104 is further opened towards the inner wall of the first connecting sleeve 102 on the basis of the moving straight groove 103, when the connecting slide bar 203 moves from the moving straight groove 103 to the inside of the moving spiral groove 104, the connecting slide bar 203 will drive the extrusion member 207 to move towards the direction of the supporting base 205.

[0052] Since a limiting block 206 is fixedly arranged on the supporting base 205, and a first extrusion inclined surface 219 and a second extrusion inclined surface 220 are formed on the limiting block 206, when the extrusion member 207 moves towards the supporting base 205, the extrusion member 207 will contact and extrude the first extrusion inclined surface 219 of the limiting block 206. And since the supporting base 205 is slidably arranged inside the second chute 223 through a corresponding slide bar, through this kind of limitation, the supporting base 205 will move downward by a certain distance inside the second chute 223 through the slide bar.

[0053] It should be noted that since a fourth spring 227 is also arranged inside the second chute 223, when the supporting base 205 slides inside the second chute 223 through the slide bar, the slide bar arranged on the supporting base 205 will extrude the fourth spring 227. This kind of setting is to enable the subsequent connecting slide bar 203 to reset, and then drive the extrusion member 207 to reset. Through the elastic force of the fourth spring 227, the supporting base 205 can also be effectively reset to the initial position so as to perform the corresponding moving effect again subsequently.

[0054] When the supporting base 205 moves downward, since a connecting rod 208 is arranged at the bottom of the supporting base 205, when the supporting base 205 moves, the connecting rod 208 will also move downward synchronously. It should be noted that the connecting rod 208 is also slidably arranged inside the second chute 223 through a corresponding slide bar, and this kind of setting is to ensure the stability of the movement of the connecting rod 208 to prevent the connecting rod 208 from shifting when moving, thus affecting the subsequent extension of the first grinding block 204 out of the punching sleeve 201;

[0055] Since two sets of second connecting sleeves 209 are symmetrically arranged on the connecting rod 208, and one end of each second connecting sleeve 209 is rotatably arranged on the connecting rod 208, and a soft connection is formed between the inside of the second connecting sleeve 209 and one end of the first connecting rotating rod 210 through the first spring 211, and the other end of the first connecting rotating rod 210 is rotatably arranged on the corresponding first grinding block 204. With this setting, after the connecting rod 208 moves, the originally inclined second connecting sleeve 209 will gradually change to a horizontal setting under the downward movement of the connecting rod 208. This change will cause the first connecting rotating rod 210 inside the second connecting sleeve 209 to push the corresponding first grinding block 204 by a certain distance, so that the first grinding block 204 can extend out of the punching sleeve 201. Since the punching sleeve 201 is still inside the punching hole of the bipolar plate at this time, the first grinding block 204 extending out of the punching sleeve 201 will gradually fit the inner wall of the punching hole of the bipolar plate. And because the punching sleeve 201 is in a rotating state when in the reset state, the first grinding block 204 attached to the inner wall of the punching hole of the bipolar plate will also polish the inner wall of the punching hole of the bipolar plate in a rotating state.

[0056] It should be noted that when the first grinding block 204 has fit the inner wall of the punching hole of the bipolar plate under the movement of the first connecting rotating rod 210, if the connecting rod 208 has not completed the movement at this time, through the setting of the first spring 211, the first connecting rotating rod 210 can be adaptively retracted into the second connecting sleeve 209 to avoid jamming.

[0057] Through the above setting, not only can the punching sleeve 201 effectively complete the punching effect on the bipolar plate in the downward movement state, but also when the punching sleeve 201 is reset later, by moving the connecting rod 208 correspondingly, the first grinding block 204 arranged inside the punching sleeve 201 can extend out of the punching sleeve 201, so as to contact the inner wall of the punching hole of the bipolar plate. And because the punching sleeve 201 rotates when resetting, the first grinding block 204 can also polish the inner wall of the punching hole of the bipolar plate in a rotating state.

[0058] Embodiment 2 is an improvement made on the basis of Embodiment 1. According to Figure 3 、 Figure 5 、 Figure 7 already Figure 8 shown, moving blocks 215 are symmetrically arranged on the punching head 212. The moving blocks 215 are slidably arranged inside the third sliding groove 224 through corresponding sliding rods. The third sliding groove 224 is opened on the top surface of the punching head 212, and a third spring 218 is arranged between the two moving blocks 215.

[0059] The moving block 215 is further provided with a sliding cavity 225. One end of a second connecting rotating rod 214 is slidably arranged inside the sliding cavity 225, and the other end of the second connecting rotating rod 214 is rotatably arranged on the connecting rod 208. The moving block 215 is further movably provided with a second grinding block 216. A second spring 217 is arranged between the second grinding block 216 and the moving block 215. A limiting hole 226 corresponding to the shape of the moving block 215 is further opened on the surface of the punching sleeve 201.

[0060] The moving block 215 is further provided with a sliding cavity 225. One end of a second connecting rotating rod 214 is slidably arranged inside the sliding cavity 225, and the other end of the second connecting rotating rod 214 is rotatably arranged on the connecting rod 208. The moving block 215 is further movably provided with a second grinding block 216. A second spring 217 is arranged between the second grinding block 216 and the moving block 215. A limiting hole 226 corresponding to the shape of the moving block 215 is further opened on the surface of the punching sleeve 201.

[0061] In this embodiment: Since the bottom end of the connecting rod 208 is symmetrically provided with second connecting rotating rods 214, one end of the second connecting rotating rod 214 is rotatably arranged on the connecting rod 208, and the other end of the second connecting rotating rod 214 is slidably arranged inside the corresponding sliding cavity 225, and the sliding cavity 225 is opened on the moving block 215. Therefore, when the connecting rod 208 is extruded and lowered by the extruding member 207 on the first extrusion inclined surface 219, at this time, the second connecting rotating rod 214 will slide inside the corresponding sliding cavity 225 under the downward movement of the connecting rod 208. And when the connecting rod 208 completes the downward movement in the first stage, at this time, the second connecting rotating rod 214 just abuts against one side surface of the sliding cavity 225. And this setting is to ensure that after the first grinding block 204 moves, the moving block 215 will not move accordingly.

[0062] When the extrusion member 207 finishes extruding the first extrusion inclined surface 219, at this time, the first grinding block 204 has extended out of the punching sleeve 201 and completed contact with the inner wall of the punching hole of the bipolar plate. As the connecting slide rod 203 continues to slide inside the moving spiral groove 104, when the punching head 212 is about to move to the outer wall of the bottom of the bipolar plate, the depth of the moving spiral groove 104 will be further deepened at this time, so that the connecting slide rod 203 drives the extrusion member 207 to continue moving, and the extrusion member 207 abuts against the second extrusion inclined surface 220 and moves to the top of the limiting block 206, causing the supporting base 205 and the connecting rod 208 to move further downward. At this time, the connecting rod 208 will drive the second connecting rotating rod 214 and the first connecting rotating rod 210 to move further, causing the first connecting rotating rod 210 to further contract into the second connecting sleeve 209. At this time, the second connecting rotating rod 214 will abut against the moving block 215, thereby causing the moving block 215 provided inside the punching sleeve 201 to extend out of the punching sleeve 201. When the moving block 215 moves outside the punching sleeve 201, it is squeezed by the limiting groove provided in the punching sleeve 201 at this time, so that the second grinding block 216 inside the moving block 215 will be released from the limit and extend out of the moving block 215. This setting is to enable the second grinding block 216 to effectively complete the grinding effect on the outer edge of the bottom of the punching hole of the bipolar plate after extending out of the punching sleeve 201 through the rotational reset of the punching sleeve 201.

[0063] It should be noted that on the one hand, the moving block 215 is slidably arranged inside the third chute 224 through a corresponding slide rod, and the third chute 224 is opened on the surface of the punching head 212. This setting enables the moving block 215 to move stably without deviation when moving. At the same time, a third spring 218 is also arranged between the two moving blocks 215, and the setting of the third spring 218 enables the subsequent reset of the moving block 215 to be carried out quickly.

[0064] On the other hand, since a reset extrusion inclined surface is opened on the surface of the second grinding block 216 away from the moving block 215, after the subsequent moving block 215 is reset and moves outside the punching head 212, the end of the inclined surface on the second grinding block 216 is still located inside the limiting hole 226 at this time, which is convenient for the subsequent reset extrusion inclined surface to retract into the punching sleeve 201 so that the second grinding block 216 can be reset smoothly;

[0065] As the punching sleeve 201 continues to move upward, at this time, the second grinding block 216 will rotationally grind the downward irregular burrs caused by stamping on the bottom surface of the bipolar plate, improving the punching and grinding effect on the bipolar plate. And as the punching sleeve 201 drives the moving block 215 to move upward, at this time, the second grinding block 216 will contact the bottom of the bipolar plate, thereby enabling the second grinding block 216 to compress the second spring 217, allowing the second grinding block 216 to normally grind the burrs on the bottom surface of the bipolar plate. When the second grinding block 216 has not retracted to the maximum position, at this time, the depth of the moving spiral groove 104 will gradually become shallower, thereby enabling the connecting slide rod 203 to drive the pressing member 207 to gradually reset, realizing the contraction of the supporting base 205, the moving block 215, and the second grinding block 216 into the punching sleeve 201, and enabling the punching sleeve 201 to smoothly slide out from the bipolar plate.

[0066] It should be noted that in order to ensure the stability of the stamping and resetting of the bipolar plate, those skilled in the art can use positioning equipment to position the bipolar plate. The positioning equipment is a prior art and can be an electric telescopic rod with a clamping function. Those skilled in the art can also select according to actual needs.

[0067] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0068] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A punching device for bipolar plate processing, comprising a positioning table (1) and a punching assembly (2), characterized in that: The positioning platform (1) is used to position and fix the bipolar plate, and a plurality of groups of first positioning members (101) are fixedly arranged at the outer edge of the top of the positioning platform (1), a first connecting sleeve (102) is fixedly arranged on each group of first positioning members (101), and a punching sleeve (201) in the punching assembly (2) is arranged inside the first connecting sleeve (102), and a punching head (212) is fixedly connected to the bottom of the punching sleeve (201), and the punching head (212) is used to punch holes in the bipolar plate; A movable spiral groove (104) is also provided on the inner wall of the first connecting sleeve (102), the movable spiral groove (104) and the movable straight groove (103) are connected, the movable straight groove (103) is provided on the inner wall of the first connecting sleeve (102), the bottom end of the movable straight groove (103) is provided with a limit flap (105) by means of a corresponding rotating rod and a torsion spring, and the top end of the movable spiral groove (104) is provided with a limit flap (105) by means of a corresponding rotating rod and a torsion spring; The punching sleeve (201) is provided with a receiving chamber (221) inside, and a supporting base (205) is movably provided inside the receiving chamber (221), the supporting base (205) is slidably provided inside a second slide groove (223) via a corresponding slide rod, the second slide groove (223) is provided on the inner wall of the receiving chamber (221), a limiting block (206) is fixedly provided on the top of the supporting base (205), and a first extrusion inclined surface (219) and a second extrusion inclined surface (220) are respectively provided on the limiting block (206); An extrusion piece (207) is also provided on one side of the limit block (206), the extrusion piece (207) is in contact with the first extrusion inclined surface (219), and the extrusion piece (207) is slidably arranged inside the first slide groove (222) via a corresponding slide rod; The first sliding groove (222) is also provided on the inner wall of the accommodating cavity (221), and a surface of one side of the extrusion member (207) close to the limit block (206) is also fixedly connected to one end of the connecting sliding rod (203); The other end of the connecting slide rod (203) passes through the punching sleeve (201), and the other end of the connecting slide rod (203) is slidably arranged inside the movable straight groove (103) through a corresponding ball bearing; The punching head (212) is also symmetrically provided with moving blocks (215), the moving blocks (215) being slidably arranged inside a third slide groove (224) via a corresponding slide rod, the third slide groove (224) being opened on the top surface of the punching head (212), and a third spring (218) being arranged between the two moving blocks (215); The moving block (215) is also provided with a sliding cavity (225), one end of a second connecting rotating rod (214) is slidably arranged inside the sliding cavity (225), and the other end of the second connecting rotating rod (214) is rotatably arranged on the connecting rod (208), and a second grinding block (216) is also movably arranged on the moving block (215).

2. A punching device for bipolar plate processing according to claim 1, characterized in that: The bottom of the supporting base (205) is fixedly connected with a connecting rod (208), and the connecting rod (208) is also slidably arranged in the second sliding groove (223) through a corresponding sliding rod. Two groups of second connecting sleeves (209) are symmetrically arranged on the connecting rod (208), and the second connecting sleeves (209) are rotatably arranged in the connecting rod (208) through a corresponding rotating rod. A first connecting rotating rod (210) is also slidably arranged in the interior of the second connecting sleeve (209).

3. A punching device for bipolar plate processing according to claim 2, characterized in that: One end of the first connecting rotating rod (210) away from the second connecting sleeve (209) is rotatably arranged on the corresponding first grinding block (204) through the corresponding rotating rod, and a first spring (211) is also arranged between the first connecting rotating rod (210) and the second connecting sleeve (209).

4. A punching device for bipolar plate processing according to claim 1, characterized in that: A second spring (217) is provided between the second grinding block (216) and the moving block (215), and a limiting hole (226) is provided on the surface of the punching sleeve (201) corresponding to the shape of the moving block (215).

5. A punching device for bipolar plate processing according to claim 1, characterized in that: A driving cylinder (202) is also provided above the punching sleeve (201); the driving cylinder (202) is fixedly arranged between two second positioning members (106); the second positioning members (106) are fixedly arranged on the corresponding first positioning members (101); the driving cylinder (202) is fixedly connected to the extrusion plate (213) via the corresponding output end; the extrusion plate (213) is arranged inside the accommodating cavity (221); and the extrusion plate (213) is also slidably arranged on the top inner wall of the accommodating cavity (221) via the corresponding ball bearings.

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