Busbar piercing die

Abstract

This invention discloses a busbar punching die, belonging to the field of metal stamping technology. It mainly includes a positioning component, an upper die component, and a lower die component. The positioning component is mounted on the placement surface of the lower die component and includes two positioning ends, multiple arranged pieces, and multiple return disc springs. The arranged pieces are prism structures with a regular hexagonal cross-section, and are arranged in a honeycomb array. There is an offset gap between adjacent arranged pieces. Multiple arranged pieces are arranged on the end face of the base plate near the top plate. Multiple arranged pieces arranged linearly along the length direction parallel to the positioning group axis on the side of the base plate away from the positioning group axis constitute locking arranged pieces, which are fixedly connected to the base plate. Multiple arranged pieces on the base plate near the positioning group axis of the locking arranged pieces constitute floating arranged pieces. This busbar punching die effectively solves the problem of the contradiction between the difficulty of loading / unloading workpieces and the punching accuracy in existing technologies.

Description

Technical Field

[0001] This invention relates to the field of metal stamping technology, and more specifically to busbar punching dies. Background Technology

[0002] Polyimide composite films possess excellent high-temperature resistance, insulation strength, mechanical toughness, and aging resistance. They are widely used as insulating coating materials, tightly wrapped around the outside of copper-aluminum busbars to form busbars, which are used in scenarios such as power connection, electrical equipment power distribution, and connection of new energy power battery modules.

[0003] Existing busbar punching dies use a positioning pair (between the positioning pin / positioning shaft and the workpiece positioning hole / positioning surface) to position the workpiece on the die. In existing technologies, the reserved fitting clearance of the positioning pair is generally designed to be large to facilitate the loading / unloading of the workpiece. However, this comes at the cost of increased reference displacement error, which directly affects the uniqueness of the punched hole on the workpiece. Alternatively, to improve positioning accuracy, the reserved fitting clearance of the positioning pair can be reduced, but this can lead to problems such as jamming, scratching, and difficulty in loading and unloading.

[0004] Therefore, it is necessary to provide a new type of punching die for the busbar. Summary of the Invention

[0005] Based on the aforementioned problems in the prior art, the purpose of this invention is to provide a busbar punching die that can effectively solve the problem of the contradiction between the difficulty of loading / unloading workpieces and the punching accuracy in the prior art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A busbar punching die is provided, comprising a positioning component, and an upper die component and a lower die component arranged opposite to each other. The positioning component is mounted on the placement surface of the lower die component. The positioning component includes two positioning side ends, multiple arranged plates, and multiple return disc springs. The arranged plates are prism structures with a cross-section of regular hexagons, and the multiple arranged plates are arranged in a honeycomb array. A positioning pin is vertically provided at the center of each arranged plate. The return disc spring is a circular structure capable of radial elastic deformation. The return disc spring is located on the upper layer of the arranged plates, and every three arranged plates are arranged in a circumferential array around the center of the return disc spring. The positioning pins on the three arranged plates arranged in a circumferential array around the axis of the return disc spring simultaneously engage with the central return disc spring. The outer peripheral walls of the springs abut each other tangentially, with offset gaps between adjacent arrangement plates. The positioning side includes a base plate two that abuts against and locks onto the placement surface, and a top plate two disposed above the base plate two. Multiple arrangement plates are disposed on the end face of the base plate two near the top plate two. Multiple return disc springs are arranged on the side of the multiple arrangement plates near the top plate two. Multiple arrangement plates located on the side of the base plate two away from the center line of the positioning group and arranged linearly along the length direction parallel to the center line of the positioning group constitute locking arrangement plates. The locking arrangement plates are fixedly connected to the base plate two. Multiple arrangement plates on the base plate two located on the locking arrangement plates near the center line of the positioning group constitute floating arrangement plates. The top plate two is fixedly connected to the locking arrangement plates, and the top plate two is fixedly connected to each return disc spring of the positioning side.

[0007] Furthermore, the positioning component also includes a positioning head end, with two positioning side ends respectively disposed on both sides of the positioning head end, i.e., on both sides of the center line of the positioning group.

[0008] Furthermore, the positioning head includes a base plate abutting and locked to the placement surface, and a top plate disposed above the base plate. The end face of the base plate near the top plate has multiple arranged pieces, all of which are fixedly connected to the base plate via positioning pins. The return disc springs in the positioning head are also fixedly connected to the top plate. The top plate is also fixedly connected to the positioning pins of the arranged pieces in the positioning head. The multiple arranged pieces on the base plate are symmetrically distributed along the positioning group axis, and the line connecting one relative vertex of the arranged pieces on the base plate is parallel or collinear with the positioning group axis. Each row of arranged pieces on the base plate, arranged perpendicular to the positioning group axis, increases in an N+1 increment along the positioning group axis. Multiple sliding arrangement pieces arranged in a linear array along a skew line with an angle of 10 degrees to the centerline of the positioning group constitute a sliding arrangement piece one. The outer side of the sliding arrangement piece one has a slanted sidewall with an angle of 10 degrees to the centerline of the positioning group, and the outer side of the sliding arrangement piece one has a vertical sidewall parallel to the centerline of the positioning group. Multiple sliding arrangement pieces arranged in a linear array along a skew line with an angle of 10 degrees to the centerline of the positioning group on the base plate two constitute a sliding arrangement piece two. The outer side of the sliding arrangement piece two has a slanted sidewall with an angle of 10 degrees to the centerline of the positioning group, and the outer side of the sliding arrangement piece two has a vertical sidewall parallel to the centerline of the positioning group. The slanted sidewall of the sliding arrangement piece one can slide along the slanted sidewall of the sliding arrangement piece two on the positioning side end.

[0009] Furthermore, the reset disc spring located on the outer edge of the sliding arrangement plate one on the positioning head end constitutes an edge reset disc spring. When the oblique sidewall one of the sliding arrangement plate one on the positioning head end slides along the oblique sidewall two of the sliding arrangement plate two on the positioning side end, the edge reset disc spring on the positioning head end can simultaneously cover the sliding arrangement plate one on the positioning head end and the sliding arrangement plate two on the positioning side end. When the top plate one is pressed towards the bottom plate one, the edge reset disc spring can lock the sliding arrangement plate one, the sliding arrangement plate two and the edge reset disc spring through the pressing friction force.

[0010] Furthermore, the line connecting the opposite vertices of the floating arrangement pieces is parallel to the center line of the positioning group, and the floating arrangement piece located closest to the center line of the positioning group on the positioning side end constitutes a side stop arrangement piece, and the side of the floating arrangement piece closest to the center line of the positioning group has a side stop portion parallel to the center line of the positioning group.

[0011] Furthermore, the positioning pins of the side baffle arrangement pieces are fixedly connected to the positioning pins of the floating arrangement pieces on the inner side of the positioning side by a connecting strip.

[0012] Furthermore, the reset disc spring has a recessed insertion hole in the center, and the top plate one / top plate two has a corresponding protruding insertion pin. The insertion pin on the top plate one / top plate two is connected to the insertion hole of the reset disc spring.

[0013] Furthermore, the upper mold assembly includes an upper mold base, an upper pad, and an upper template stacked and fixedly connected from top to bottom, with a punch installed on the upper template. The lower mold assembly includes a lower template, a lower pad, and a lower mold base stacked and fixedly connected from top to bottom, with a die insert installed on the lower template, and a punch hole provided on the die insert that is aligned with the punch.

[0014] Furthermore, the lower end of the upper template is elastically connected to a stripper plate, which is slidably connected to the upper template via a pull rod. An elastic element is sleeved on the pull rod, and the elastic element applies elastic force to drive the stripper plate to slide downwards until it is in place.

[0015] Furthermore, when the upper mold assembly presses down on the lower mold assembly, the stripper plate elastically abuts against the bottom plate one and the bottom plate two, and the stripper plate presses the bottom plate one and the bottom plate two downward, triggering the top plate one and the top plate two to press the reset disc spring and the arrangement plate together.

[0016] The beneficial effects of this invention are as follows: The busbar punching mold provided by this invention includes a positioning component, and an upper mold component and a lower mold component arranged opposite to each other. The positioning component is mounted on the placement surface of the lower mold component. The positioning component includes two positioning side ends, multiple arranged pieces, and multiple return disc springs. The arranged pieces are prism structures with a cross-section of regular hexagons. The multiple arranged pieces are arranged in a honeycomb array. A positioning pin is vertically provided at the center of each arranged piece. The return disc spring is a circular structure capable of radial elastic deformation. The return disc spring is located on the upper layer of the arranged pieces, and every three arranged pieces are arranged in a circumferential array around the center of the return disc spring. The positioning pins on the three arranged pieces arranged in a circumferential array around the axis of the return disc spring are simultaneously tangentially abutted against the outer peripheral wall of the central return disc spring. In this way, each reset disc spring will simultaneously rest against three arranged plates. When the reset disc springs press towards the arranged plates, each reset disc spring can simultaneously lock and connect with the three arranged plates through pressing friction. In addition, three reset disc springs tangent to the positioning pin are arranged in a circular array around the center of the positioning pin on the arranged plates. The three reset disc springs surrounding the outside of the positioning pin can block and limit the positioning pin. There is an offset gap between adjacent arranged plates. The two positioning ends are used to abut and limit the opposite side walls of the workpiece. The positioning ends include a base plate two that abuts against and locks against the placement surface, and a top plate two set above the base plate two. Multiple arranged plates are arranged on the end face of the base plate two near the top plate two. On the side of the multiple arranged plates near the top plate two, there are arranged... Multiple return disc springs are arranged linearly along the length of the positioning group axis on the side of the base plate two, away from the axis of the positioning group, forming a locking arrangement. The locking arrangement is fixedly connected to the base plate two. Multiple arrangement pieces on the base plate two, located near the axis of the positioning group, form a floating arrangement. The top plate two is fixedly connected to the locking arrangement and to each return disc spring on the positioning side. When the side of the workpiece is against the floating arrangement piece, due to the offset gap, the floating arrangement piece can move closer to the locking arrangement piece, causing the return disc spring to undergo elastic deformation along the radial compression. This increases the positioning gap between the two positioning sides. When the external force on the workpiece is removed, the multiple return disc springs... The elastic recovery of the return disc spring causes it to return to its original shape, and the presence of the second top plate forces multiple return disc springs on the positioning side to return to their original positions. Since the three return disc springs surrounding the positioning pin can clamp and limit the positioning pin, the return disc springs returning to their original positions can drive the floating arrangement plates to return to their initial positions, restoring the positioning gap between the two positioning sides to its initial size. Thus, the elastic offset of the floating arrangement plates can temporarily increase the positioning gap between the two positioning sides, making it less prone to jamming or scratching when the workpiece is loaded / unloaded between the two positioning sides, facilitating workpiece loading and unloading. Simultaneously, the positioning gap between the two positioning sides can return to a smaller state as the return disc springs return, improving the punching accuracy of the workpiece.This effectively solves the problem of the contradiction between the difficulty of loading / unloading workpieces and the punching accuracy in existing technologies. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a three-dimensional structural diagram of the busbar punching die provided in an embodiment of the present invention.

[0019] Figure 2 This is a front view of the busbar punching die provided in an embodiment of the present invention.

[0020] Figure 3 For along Figure 2 Cross-sectional view along the EE direction.

[0021] Figure 4 For along Figure 2 A cross-sectional view of the upper mold assembly in the middle FF direction.

[0022] Figure 5 This is an exploded view of the upper mold assembly provided in an embodiment of the present invention.

[0023] Figure 6 This is an exploded view of the lower template provided in an embodiment of the present invention.

[0024] Figure 7 This is a three-dimensional structural diagram of the positioning component provided in the embodiment of the present invention in the first working state.

[0025] Figure 8 This is a top view of the positioning component provided in an embodiment of the present invention.

[0026] Figure 9 for Figure 8 A schematic diagram of the structure when the positioning components are omitted from the viewpoint, specifically when top plate one and top plate two are omitted.

[0027] Figure 10 for Figure 8 A schematic diagram of the positioning components when the top plate 1, top plate 2, and reset disc spring are omitted from the viewpoint.

[0028] Figure 11 for Figure 8 The diagram shows the structure of the positioning component in the second working state.

[0029] Figure 12 for Figure 11 The diagram shows the structure of the positioning component when top plate 1 and top plate 2 are omitted.

[0030] Figure 13 for Figure 11The diagram shown is a structural schematic of the positioning assembly when top plate 1, top plate 2, and reset disc spring are omitted.

[0031] Figure 14 for Figure 13 An enlarged schematic diagram of region A in the middle.

[0032] Figure 15 This is a three-dimensional structural diagram of the positioning head end provided in an embodiment of the present invention.

[0033] Figure 16 This is an exploded view of the positioning head end provided in an embodiment of the present invention.

[0034] Figure 17 This is a top view schematic diagram of the positioning head end with the top plate omitted in an embodiment of the present invention.

[0035] Figure 18 This is a schematic diagram of the positioning head end with the top plate and reset disc spring omitted, according to an embodiment of the present invention.

[0036] Figure 19 This is an exploded view of the positioning side provided in an embodiment of the present invention.

[0037] Figure 20 This is a top view of the positioning side provided in an embodiment of the present invention.

[0038] Figure 21 for Figure 20 The diagram shown is a structural schematic of the positioning side of the present invention when the reset disc spring is omitted in one working state.

[0039] Figure 22 for Figure 21 The diagram shows the structure of the positioning side in another working state.

[0040] In the figure, the following reference numerals are used: 100, workpiece; 10, positioning assembly; 1, positioning head end; 11, base plate one; 12, top plate one; 2, positioning side end; 21, base plate two; 22, top plate two; 23, connecting strip; 3, arrangement piece; 31, sliding arrangement piece one; 311, oblique side wall one; 312, vertical side wall one; 32, auxiliary arrangement piece; 33, head stop; 34, sliding arrangement piece two; 341, oblique side wall two; 342, vertical side wall two; 35, locking arrangement piece; 36, side stop arrangement piece; 37, floating arrangement piece; 4, return disc spring; 41, edge return disc spring; 5. Locating pin; 6. Offset clearance; 20. Upper die assembly; 201. Upper template; 202. Stripper plate; 203. Stripper back plate; 204. Upper die base; 205. Upper backing plate; 206. Punch; 207. Tie rod; 2071. Elastic element; 2072. Tie rod head; 208. Punch insert; 209. Stripper plate insert; 30. Lower die assembly; 301. Lower template; 302. Die insert; 303. Punch; 304. Lower backing plate; 305. Lower die base; 306. Blanking hole; 309. Placement surface; Q. Locating group axis; P. Oblique line one; R. Oblique line two. Detailed Implementation

[0041] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0042] It should be noted that when a component is referred to as "connected to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0043] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0044] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0045] Throughout this specification, reference to "an embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of this application. Therefore, the phrases "in one embodiment," "in some embodiments," or "in some of these embodiments" appear in various places throughout the specification, and not all refer to the same embodiment. Furthermore, in one or more embodiments, a particular feature, structure, or characteristic may be combined in any suitable manner.

[0046] Please refer to Figures 1 to 22 As shown, the busbar punching die provided by the present invention will now be described. This busbar punching die is used to punch holes in a workpiece 100. In this embodiment, the workpiece 100 is a busbar. The busbar punching die provided by the present invention punches a center hole or an eccentric hole near the head end of the busbar. The busbar punching die includes a positioning component 10, and an upper die component 20 and a lower die component 30 arranged opposite each other. The positioning component 10 is mounted on the placement surface 309 of the lower die component 30. Figures 7 to 22 As shown, the positioning assembly 10 includes two positioning ends 2, multiple arrangement plates 3, and multiple reset disc springs 4. The arrangement plates 3 are prism structures with a cross-section of regular hexagons. The multiple arrangement plates 3 are arranged in a honeycomb array. A positioning pin 5 is vertically provided at the center of each arrangement plate 3. The reset disc spring 4 is a circular structure capable of radial elastic deformation. The reset disc spring 4 is located on the upper layer of the arrangement plates 3, and every three arrangement plates 3 are arranged in a circumferential array around the center of the reset disc spring 4. The positioning pins 5 on the three arrangement plates 3 arranged in a circumferential array around the axis of the reset disc spring 4 are simultaneously... The return disc spring 4 is tangentially abutted against the outer peripheral wall of the center, so that each return disc spring 4 will simultaneously overlap with the three arranged plates 3. When the return disc spring 4 is pressed towards the arranged plates 3, each return disc spring 4 can simultaneously lock and connect with the three arranged plates 3 through compression friction. In addition, three return disc springs 4 tangential to the positioning pin 5 are arranged in a circular array around the center of the positioning pin 5 on the arranged plates 3. The three return disc springs 4 surrounding the outside of the positioning pin 5 can block and limit the positioning pin 5. There is an offset gap 6 between adjacent arranged plates 3. Figures 8 to 13 As shown, the two positioning ends 2 are respectively used to abut against the opposite side walls of the workpiece 100, as... Figures 19 to 22As shown, the positioning side end 2 includes a base plate 21 that abuts against and is locked onto the placement surface 309, and a top plate 22 disposed above the base plate 21. Multiple arrangement pieces 3 are arranged on the end face of the base plate 21 near the top plate 22. Multiple return disc springs 4 are arranged on the side of the multiple arrangement pieces 3 near the top plate 22. Multiple arrangement pieces 3 located on the side of the base plate 21 away from the positioning group axis Q, arranged linearly along the length direction parallel to the positioning group axis Q, constitute a locking arrangement piece 35. The locking arrangement piece 35 is fixedly connected to the base plate 21. Multiple arrangement pieces 3 on the base plate 21 located on the base plate 21 near the positioning group axis Q of the locking arrangement piece 35 constitute a floating arrangement piece 37. The top plate 22 is fixedly connected to the locking arrangement piece 35, and the top plate 22 is fixedly connected to each return disc spring 4 of the positioning side end 2. When the side of the workpiece 100 abuts against the floating arrangement piece 37, as... Figure 22 As shown, due to the presence of the offset gap 6, the floating arrangement piece 37 can move closer to the locking arrangement piece 35, while simultaneously causing the return disc spring 4 to undergo elastic deformation along the radial direction, thereby increasing the elasticity of the positioning gap between the two positioning ends 2. When the external force on the workpiece 100 is removed, the return disc spring 4 returns to its original shape through the elastic recovery of multiple return disc springs 4, and due to the presence of the top plate 22, multiple return disc springs 4 at the positioning ends 2 are forced to return to their original positions. Since the three return disc springs 4 surrounding the outside of the positioning pin 5 can clamp and limit the positioning pin 5, the return of the return disc springs 4 to their original positions can drive the floating arrangement piece 37. When piece 37 returns to its initial position, the positioning gap between the two positioning ends 2 returns to its initial size. In this way, the elastic offset of the floating arrangement piece 37 can temporarily increase the positioning gap between the two positioning ends 2, making it less likely for the workpiece 100 to get stuck or scratched when it is loaded / unloaded between the two positioning ends 2, which facilitates the loading and unloading of the workpiece 100. At the same time, the positioning gap between the two positioning ends 2 can be restored to a smaller state as the reset disc spring 4 is reset, thereby improving the punching accuracy of the workpiece 100 and effectively solving the problem of the contradiction between the difficulty of loading / unloading the workpiece and the punching accuracy in the prior art.

[0047] like Figure 7 , Figure 8 As shown, in some embodiments, the positioning assembly 10 further includes a positioning head end 1, which is used to hold and position the end of the workpiece 100. Two positioning side ends 2 are respectively disposed on both sides of the positioning head end 1, that is, on both sides of the positioning assembly axis Q, so that the positioning head end 1, the two positioning side ends 2 and the placement surface 309 cooperate to form a degree of freedom restriction of X translation, Y translation and rotation in the plane.

[0048] like Figures 15 to 18As shown, in some embodiments, specifically, the positioning head end 1 includes a base plate 11 that abuts against and is locked onto the placement surface 309, and a top plate 12 disposed above the base plate 11. The end face of the base plate 11 near the top plate 12 is provided with a plurality of honeycomb-arranged pieces 3. Each piece 3 is fixedly connected to the base plate 11 by a positioning pin 5, and the reset disc springs 4 in the positioning head end 1 are all fixedly connected to the top plate 12. The top plate 12 is also fixedly connected to the positioning pins 5 of the pieces 3 in the positioning head end 1. The plurality of pieces 3 on the base plate 11 are symmetrically distributed along the positioning group axis Q, and the line connecting a relative vertex of the pieces 3 on the base plate 11 is parallel or collinear with the positioning group axis Q. Each row of pieces 3 arranged on the base plate 11 along a direction perpendicular to the positioning group axis Q increases in an N+1 manner along the direction of the positioning group axis Q. Figure 18 As shown, multiple sliding arrangement pieces 3 arranged in a linear array on the base plate 11, with an angle α to the positioning group axis Q, constitute a sliding arrangement piece 31. The angle α is 30 degrees. Therefore, the outer side of the sliding arrangement piece 31 has an oblique sidewall 311 inclined at a 60-degree angle to the positioning group axis Q, and a vertical sidewall 312 parallel to the positioning group axis Q. Figure 20 As shown, multiple sliding arrangement pieces 3 arranged in a linear array on the base plate 21, with an angle b to the positioning group axis Q, constitute a sliding arrangement piece 34. The angle b is 30 degrees. Therefore, the outer side of the sliding arrangement piece 34 has an oblique sidewall 341 that is inclined at a 60-degree angle to the positioning group axis Q, and the outer side of the sliding arrangement piece 34 has a vertical sidewall 342 that is parallel to the positioning group axis Q. Figure 13 As shown, when the inclined sidewall 311 of the sliding arrangement piece 31 on the positioning head end 1 slides and adheres to the inclined sidewall 341 of the sliding arrangement piece 34 on the positioning side end 2, the positioning side end 2 can slide relative to the positioning head end 1 in the direction of inclined sidewall 311 / inclined sidewall 341, thereby causing the positioning side end 2 to be displaced in a direction perpendicular to the centerline Q of the positioning group. This allows for adjustment of the distance between the two positioning side ends 2 on the positioning head end 1, thus accommodating workpieces 100 of different widths in the upper mold assembly. Drilling between the lower die assembly 20 and the lower die assembly 30 can be achieved by first adjusting the distance between the two positioning ends 2 on the positioning head end 1 to position the workpiece 100 of the corresponding specification onto the positioning assembly 10. Then, after adjusting the positioning assembly 10 on the placement surface 309, the positioning assembly 10 is locked in the designated position on the placement surface 309, thus achieving the positioning of the workpiece 100. At the same time, the punch 206 is adjusted to align with the position to be drilled on the workpiece 100, thereby enabling the free processing of the center hole or eccentric hole of the workpiece 100.

[0049] like Figure 17 , Figure 18As shown, in some embodiments, the outer edge of the foremost arrangement piece 3 of the positioning head end 1 forms a head stop 33 for abutting the end of the workpiece 100.

[0050] like Figure 17 , Figure 18 As shown, in some embodiments, the arrangement piece 3 in the positioning head end 1 other than the sliding arrangement piece 31 constitutes an auxiliary arrangement piece 32. The auxiliary arrangement piece 32 fills the periphery of the sliding arrangement piece 31, thereby stabilizing the position of the sliding arrangement piece 31 on the base plate 11.

[0051] In some embodiments, the top plate 22 and the positioning pin 5 of the locking arrangement piece 35 are fixedly connected by a plug-in engagement.

[0052] In some embodiments, the center of the reset disc spring 4 is recessed with a socket (not shown), and the top plate 12 / top plate 22 is correspondingly protruded with a pin (not shown). The pin on the top plate 12 / top plate 22 is inserted into the socket of the reset disc spring 4 to achieve connection, so that the center position of the reset disc spring 4 and the top plate 12 / top plate 22 maintain a fixed connection relationship. At the same time, the reset disc spring 4 can also achieve radial elastic deformation through elastic deformation to adapt to the offset movement of the floating arrangement plate 37.

[0053] like Figure 11 , Figure 12 as well as Figure 17 As shown, in some embodiments, the reset disc spring 4 located on the outer edge of the sliding arrangement piece 31 on the positioning head end 1 constitutes an edge reset disc spring 41. Thus, when the oblique sidewall 311 of the sliding arrangement piece 31 on the positioning head end 1 slides along the oblique sidewall 341 of the sliding arrangement piece 34 on the positioning side end 2, the edge reset disc spring 41 on the positioning head end 1 can simultaneously cover both the sliding arrangement piece 31 and the sliding arrangement piece 34 on the positioning side end 2. When the top plate 12 is pressed towards the bottom plate 1... When the 11-direction extrusion is applied, the edge reset disc spring 41 can lock the sliding arrangement plate 1 31, the sliding arrangement plate 2 34 and the edge reset disc spring 41 through the extrusion friction, thereby locking the relative position of the positioning head end 1 and the positioning side end 2. This reduces the possibility of the positioning component 10 disengaging from the placement surface 309 and causing relative offset when the upper die assembly 20 and the lower die assembly 30 approach the punching workpiece 100, thereby reducing the probability of the positioning component 10 failing to position the workpiece 100. This can reduce processing errors and further ensure processing accuracy.

[0054] like Figure 20As shown, in some embodiments, the line connecting the opposite vertices of the floating arrangement pieces 37 is parallel to the center line Q of the positioning group. The floating arrangement pieces 37 located on the positioning side end 2 closest to the center line Q of the positioning group constitute side blocking arrangement pieces 36, so that the side side of the floating arrangement piece 37 closest to the center line Q of the positioning group has a side blocking portion 361 parallel to the center line Q of the positioning group. The side blocking portion 361 parallel to the center line Q of the positioning group adapts to fit the parallel two sides of the workpiece 100.

[0055] like Figure 20 As shown, in some embodiments, the positioning pin 5 of the side baffle plate 36 and the positioning pin 5 of the floating plate 37 on the inner side end 2 are fixedly connected by a connecting strip 23, so that the side baffle plate 36 on the outer edge will not loosen due to the lack of the side limit of the return disc spring 4.

[0056] like Figure 20 As shown, in some embodiments, the adjacent sides of the adjacent arrangement pieces 3 are parallel and equally spaced, so that the adjacent arrangement pieces 3 are separated by an offset gap 6, which helps the floating arrangement pieces 37 to slide stably and regularly.

[0057] Furthermore, the positioning component 10 provided in this embodiment of the invention, through the modular and multi-purpose design of the arrangement pieces 3 and the reset disc springs 4, can select an appropriate number of arrangement pieces 3 and reset disc springs 4 as needed to complete the free combination of the positioning head end 1 and the positioning side end 2. This allows the positioning component 10 to freely meet the needs of the upper mold component 20 and the lower mold component 30 of different sizes and structures. For example, by adjusting the number of sliding arrangement pieces 1 31 and the number of sliding arrangement pieces 2 34, the two positioning side ends 2 can adjust the spacing relative to the positioning head end 1 within the required range, meeting the needs of different fields. It has strong versatility, and quick and low-cost maintenance can be achieved by replacing some of the arrangement pieces 3 / reset disc springs 4.

[0058] like Figures 1 to 6 As shown, in some embodiments, the upper mold assembly 20 includes an upper mold base 204, an upper pad 205, and an upper template 201 stacked and fixedly connected from top to bottom. A punch 206 is mounted on the upper template 201. The lower mold assembly 30 includes a lower template 301, a lower pad 304, and a lower mold base 305 stacked and fixedly connected from top to bottom. A die insert 302 is mounted on the lower template 301. A punch 303 is provided on the die insert 302, which is aligned with the punch 206. The punch 206 passes through the workpiece 100 and enters the punch 303 to punch a hole in the workpiece 100. At the same time, waste material is pushed into the punch 303.

[0059] like Figures 1 to 7As shown, in some embodiments, a punch insert 208 is embedded on the upper template 201, and a punch 206 is fixedly connected to the punch insert 208. In this way, by replacing the punch insert 208, a corresponding punch 206 can be selected for a specified processing technology.

[0060] like Figure 4 As shown, in some embodiments, a stripper plate 202 is elastically connected to the lower end of the upper template 201 to prevent material from sticking. Specifically, a stripper back plate 203 is stacked on the side of the stripper plate 202 near the upper template 201. The stripper plate 202 is slidably connected to the upper template 201 via a pull rod 207, and an elastic element 2071 is sleeved on the pull rod 207. The elastic element 2071 applies elastic force to drive the stripper plate 202 to slide downward until it is in place. The top end of the pull rod 207 is provided with a pull rod head end 2072. When the pull rod 207 slides downward into place, the lower end of the pull rod head end 2072 abuts against the upper template 201. In addition, a stripper plate insert 209 is embedded on the stripper plate 202, and the punch 206 passes through the stripper plate insert 209 to guide and stabilize the punch 206 through the stripper plate insert 209.

[0061] like Figure 3 As shown, in some embodiments, the lower pad 304 and the lower die base 305 are provided with a discharge hole 306 that communicates with the punch 303 for the discharge and collection of waste materials.

[0062] like Figure 6 As shown, in some embodiments, the lower template 301 is recessed with an embedding groove 307, and the die insert 302 is detachably embedded in the embedding groove 307.

[0063] like Figure 1 As shown, in some embodiments, the lower template 301 is provided with a positioning structure on the placement surface 309 corresponding to the base plate 11 and the base plate 21, so that after the positioning component 10 adjusts the positioning gap, the positioning component 10 is locked on the placement surface 309 of the lower template 301 through the base plate 11 and the base plate 21. Specifically, in this embodiment, the positioning structure is a vacuum adsorption type. It can be understood that in other embodiments not shown in the figure, the lower template 301 may also be provided with a threaded locking structure on the placement surface 309 corresponding to the base plate 11 and the base plate 21.

[0064] In some embodiments, when the upper mold assembly 20 presses down on the lower mold assembly 30, the stripper plate 202 also elastically abuts against the bottom plate 11 and the bottom plate 21, so that the stripper plate 202 not only plays the role of preventing material from sticking, but also triggers the top plate 12 and the top plate 22 to press the reset disc spring 4 and the arrangement piece 3 together by pressing the bottom plate 11 and the bottom plate 21 downward, so that the arrangement piece 3, which originally had a degree of freedom, loses the possibility of deviation, and ensures the consistency of the positioning assembly 10.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A punching die for a busbar, characterized in that: The system includes a positioning component, and an upper mold component and a lower mold component arranged opposite each other. The positioning component is mounted on the placement surface of the lower mold component. The positioning component includes two positioning ends, multiple arranged plates, and multiple return disc springs. The arranged plates are prism structures with a cross-section of regular hexagons, and the multiple arranged plates are arranged in a honeycomb array. A positioning pin is vertically provided at the center of each arranged plate. The return disc spring is a circular structure capable of radial elastic deformation. The return disc spring is located on the upper layer of the arranged plates, and every three arranged plates are arranged in a circumferential array around the center of the return disc spring. The positioning pins on the three arranged plates arranged in a circumferential array around the axis of the return disc spring are simultaneously tangentially abutted against the outer peripheral wall of the central return disc spring. The plates are spaced apart by offset gaps. The positioning side includes a second base plate that is attached to and locked to the placement surface, and a second top plate that is disposed above the second base plate. Multiple plates are arranged on the end face of the second base plate near the second top plate. Multiple reset disc springs are arranged on the side of the multiple plates near the second top plate. Multiple plates arranged linearly along the length direction parallel to the axis of the positioning group on the side of the second base plate away from the axis of the positioning group constitute locking plates. The locking plates are fixedly connected to the second base plate. Multiple plates on the second base plate near the axis of the positioning group constitute floating plates. The second top plate is fixedly connected to the locking plates and to each reset disc spring of the positioning side.

2. The busbar punching die according to claim 1, characterized in that: The positioning component also includes a positioning head end, and two positioning side ends are respectively disposed on both sides of the positioning head end, that is, on both sides of the center line of the positioning group.

3. The busbar punching die according to claim 2, characterized in that: The positioning head includes a base plate abutting and locked to the placement surface, and a top plate disposed above the base plate. Multiple arrangement pieces are arranged on one end face of the base plate near the top plate. Each arrangement piece is fixedly connected to the base plate via positioning pins. The return disc springs in the positioning head are also fixedly connected to the top plate. The top plate is also fixedly connected to the positioning pins of the arrangement pieces in the positioning head. The multiple arrangement pieces on the base plate are symmetrically distributed along the positioning group axis, and the line connecting one relative vertex of the arrangement pieces on the base plate is parallel or collinear with the positioning group axis. Each row of arrangement pieces on the base plate, arranged perpendicular to the positioning group axis, increases in an N+1 increment along the positioning group axis. Multiple sliding arrangement pieces arranged in a linear array with oblique lines at an angle of 10 degrees constitute a sliding arrangement piece one. The outer side of the sliding arrangement piece one has an oblique sidewall at an angle of 10 degrees to the center line of the positioning group, and the outer side of the sliding arrangement piece one has a vertical sidewall parallel to the center line of the positioning group. Multiple sliding arrangement pieces arranged in a linear array with oblique lines at an angle of 10 degrees to the center line of the positioning group on the base plate two constitute a sliding arrangement piece two. The outer side of the sliding arrangement piece two has an oblique sidewall at an angle of 10 degrees to the center line of the positioning group, and the outer side of the sliding arrangement piece two has a vertical sidewall parallel to the center line of the positioning group. The oblique sidewall of the sliding arrangement piece one can slide along the oblique sidewall of the sliding arrangement piece two on the positioning side end.

4. The busbar punching die according to claim 3, characterized in that: The reset disc spring located on the outer edge of the sliding arrangement plate one on the positioning head end constitutes an edge reset disc spring. When the oblique side wall one of the sliding arrangement plate one on the positioning head end slides along the oblique side wall two of the sliding arrangement plate two on the positioning side end, the edge reset disc spring on the positioning head end can simultaneously cover the sliding arrangement plate one on the positioning head end and the sliding arrangement plate two on the positioning side end. When the top plate one is pressed towards the bottom plate one, the edge reset disc spring can lock the sliding arrangement plate one, the sliding arrangement plate two and the edge reset disc spring through the pressing friction force.

5. The busbar punching die according to claim 1, characterized in that: The line connecting the opposite vertices of the floating arrangement pieces is parallel to the center line of the positioning group. The floating arrangement pieces located on the positioning side end closest to the center line of the positioning group constitute a side stop arrangement piece. The side of the floating arrangement piece closest to the center line of the positioning group has a side stop portion parallel to the center line of the positioning group.

6. The busbar punching die according to claim 5, characterized in that: The positioning pins of the side baffle arrangement pieces are fixedly connected to the positioning pins of the floating arrangement pieces on the inner side of the positioning side by a connecting strip.

7. The busbar punching die according to claim 3, characterized in that: The reset disc spring has a recessed insertion hole in the center, and the top plate one / top plate two has a corresponding protruding insertion pin. The insertion pin on the top plate one / top plate two is connected to the insertion hole of the reset disc spring.

8. The busbar punching die according to any one of claims 1-7, characterized in that: The upper mold assembly includes an upper mold base, an upper pad, and an upper template stacked and fixedly connected from top to bottom. A punch is installed on the upper template. The lower mold assembly includes a lower template, a lower pad, and a lower mold base stacked and fixedly connected from top to bottom. A die insert is installed on the lower template, and a punch hole is provided on the die insert that is aligned with the punch.

9. The busbar punching die according to claim 8, characterized in that: The lower end of the upper template is elastically connected to a stripper plate. The stripper plate is slidably connected to the upper template via a pull rod, and an elastic element is sleeved on the pull rod. The elastic element applies elastic force to drive the stripper plate to slide downward until it is in place.

10. The busbar punching die according to claim 9, characterized in that: When the upper mold assembly presses down on the lower mold assembly, the stripper plate elastically abuts against the bottom plate 1 and the bottom plate 2. The stripper plate presses the bottom plate 1 and the bottom plate 2 downward, triggering the top plate 1 and the top plate 2 to press the reset disc spring and the arrangement plate together.

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