A production die for forming copper bars with large width-to-thickness ratio

Abstract

The invention relates to the technical field of forming dies, and discloses a production die for forming a copper bar with a large width-to-thickness ratio, comprising a lower die, a positioning rod fixedly connected to the outer side of the lower die, an upper die slidably connected to the top of the positioning rod, a variable pitch mechanism for shaping copper bars of different thicknesses arranged on the top of the lower die, an ejection mechanism for unloading the copper bar arranged inside the lower die, a driving mechanism for clamping the copper bar during stamping arranged between the upper die and the lower die, the variable pitch mechanism comprising a threaded column, the threaded column rotatably connected to the top of the lower die, a threaded sleeve connected to the outer thread of the threaded column, the device can synchronously adjust the spacing between adjacent side plates, can simultaneously perform stamping processing on a plurality of copper materials, thereby improving the production efficiency of the copper bar, and the side plates can be supported on the outer sides of copper bars of different thicknesses, thereby facilitating stamping processing on copper bars of different thicknesses, thereby improving the applicability of the device.

Description

Technical Field

[0001] The invention relates to the technical field of forming dies, in particular to a production die for forming a copper bar with a large width-to-thickness ratio. Background Art

[0002] Copper busbar is a conductor made of copper, usually in the shape of a flat strip. It is widely used in electrical systems. The main function of copper busbar is to transmit current. Because copper has good conductivity and can effectively guide current through the circuit, copper busbar is often used in electrical equipment such as distribution cabinets, switch cabinets, and transformers.

[0003] Common copper busbars are rectangular, circular or other specific shapes. Their thickness and width need to be determined according to the current load and installation requirements. The shape and size of the copper busbar are customized according to specific application requirements. At present, in the production process of copper busbars, the shape of the copper busbar is mainly processed by stamping. During processing, the copper material is manually placed in the forming mold, and the copper material is deformed by stamping, so that it is bent into a specific shape for practical use.

[0004] In some specific cases, copper bars with a large width-to-thickness ratio are required. Such copper bars are made by stamping copper materials with a large width-to-thickness ratio. Due to the increase in the width-to-thickness ratio, the volume of such copper materials exposed outside the mold during vertical stamping is usually larger than that of general copper materials. Since the exposed copper materials are not fully supported by the mold, the position where the copper materials are first squeezed during stamping is prone to lateral deformation, resulting in changes in the thickness of the copper bars to form defective products, thereby reducing the qualified rate of copper bar production. In addition, the existing copper bar mold cannot adjust the gap width according to the thickness of the copper bar being processed. Therefore, the mold specifications need to be changed for processing different copper bars, which is not convenient for practical use.

[0005] Therefore, a production die for forming copper bars with large width-to-thickness ratio is proposed. Summary of the invention

[0006] The object of the present invention is to provide a production die for forming a copper busbar with a large width-to-thickness ratio, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions: a production mold for forming a copper bar with a large width-to-thickness ratio, comprising a lower mold, a positioning rod is fixedly connected to the outer side of the lower mold, an upper mold is slidably connected to the top of the positioning rod, a variable distance mechanism for shaping copper bars of different thicknesses is arranged on the top of the lower mold, an ejection mechanism for unloading the copper bar is arranged inside the lower mold, and a driving mechanism for clamping the copper bar during stamping is arranged between the upper mold and the lower mold;

[0008] The pitch-changing mechanism includes a threaded column, the threaded column is rotatably connected to the top of the lower mold, the external thread of the threaded column is connected to a threaded sleeve, five connecting blocks are arranged on the top of the lower mold, and the five connecting blocks are equidistantly arranged in a straight line, one of the connecting blocks is fixedly connected to the outside of the threaded sleeve, the connecting block farthest from the threaded sleeve is fixedly connected to the top of the lower mold, and the remaining connecting blocks are slidably connected to the top of the lower mold, the outer side of the connecting block is fixedly connected to a side plate, the inner side of the side plate is fixedly connected to a support spring, the top of the support spring is fixedly connected to a support plate, and a spring 1 is fixedly connected between adjacent connecting blocks, both ends of the threaded column are slidably connected to plug blocks, one end of the plug block away from the threaded column is fixedly connected to a handwheel, a spring 2 is fixedly connected between the plug block and the inner wall of the threaded column, the ends of the two plug blocks close to each other are fixedly connected to a rack, and the inner part of the threaded column is rotatably connected to a gear roller;

[0009] The driving mechanism includes a limiting column, which is fixedly connected to the top of the lower mold, a movable plate is slidably connected to the outside of the limiting column, a return spring is fixedly connected to the side of the movable plate away from the threaded column, a support ring is fixedly connected to the outside of the limiting column, a tooth plate is fixedly connected to the bottom of the movable plate, a pressure plate is fixedly connected to the bottom of the upper mold, and a gear is rotatably connected to the outer side of the lower mold, and the gear and the tooth plate are meshed with each other.

[0010] Preferably, the ejection mechanism includes a tension spring, wherein two tension springs are provided, and the two tension springs are fixedly connected to the interior of the lower mold, the tops of the two tension springs are fixedly connected to a frame body, a connecting rod is fixedly connected between the two frames, the bottom of each connecting block is fixedly connected to a bottom plate, the sides of two adjacent bottom plates that are close to each other are fixedly connected to a clamping spring, a positioning plate is provided between the two adjacent bottom plates, the two sides of the positioning plate are respectively fixedly connected to the clamping spring between the two bottom plates, the interior of the positioning plate is slidably connected to an ejection plate, the interior of the ejection plate is slidably connected to a push plate, a spring sheet is fixedly connected between the push plate and the inner wall of the ejection plate, and the sides of the two frames that are away from each other are fixedly connected to a protrusion, the top of the lower mold is fixedly connected to two limit plates, the top of the frame is fixedly connected to a lower magnetic block, and the bottom of the upper mold is fixedly connected to two upper magnetic blocks.

[0011] Preferably, the outer side of the side plate and the outer side of the inner support plate are located in a vertical plane, and the bottom of the side plate is in contact with the top of the lower mold.

[0012] Preferably, one end of the insert away from the second spring passes through the gear, the rack is slidably connected to the inside of the threaded column, the two racks are parallel to each other, and the two racks are respectively meshed and connected to the two sides of the gear roller.

[0013] Preferably, the sides of the pressing plate and the moving plate that are close to each other are both configured as inclined surfaces, and the inclined surfaces of the pressing plate and the moving plate are parallel.

[0014] Preferably, the support ring is sleeved on the outside of the limiting column, the limiting column and the support ring are fixed by bolts, and the support ring is fitted with a side of the movable plate away from the reset spring.

[0015] Preferably, the connecting rod passes through each ejection plate and is slidably connected to the ejection plate, a slide groove is provided on the top of the lower mold, the positioning plate is slidably connected in the slide groove, and one end of the push plate away from the spring plate abuts against the inner wall of the slide groove.

[0016] Preferably, the lower magnetic block and the upper magnetic block are on a vertical line, the limiting plate is L-shaped, and the top end of the limiting plate is blocked above the protrusion.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] First, the device can synchronously adjust the spacing between adjacent side plates, and can simultaneously perform stamping processing on multiple copper materials, thereby improving the production efficiency of the copper bar. In addition, the side plates can be supported on the outside of copper bars of different thicknesses, which is also convenient for stamping copper bars of different thicknesses, thereby improving the applicability of the device.

[0019] Since space is reserved between the side plate and the copper material when the copper material is fed, the side plate moves to clamp the copper material during the stamping process. This design can reduce the friction force on the copper material when it is inserted into the gap between the side plates, making the feeding of the copper material more labor-saving. In addition, the connection between the side plate and the copper material is tighter during the stamping of the copper material, thereby improving the limiting effect of the side plate. At the same time, this design also effectively prevents the pressure between the copper material and the side plate from increasing after the copper material is deformed by stamping, which makes it difficult to unload the copper material, thereby improving the use effect of the device.

[0020] Secondly, the top of the support plate will support and limit the top of the copper material during stamping, effectively preventing the top of the copper material from being exposed outside the side plate and causing lateral deformation during stamping, ensuring the stamping effect of copper bars with a large width-to-thickness ratio and improving the qualified rate of copper bar production;

[0021] The push plate can automatically lift and unload the copper bar after the copper bar is stamped and formed, which simplifies the processing steps of the copper bar forming, thereby improving the processing efficiency of the copper bar, saving manpower and eliminating the safety hazards when manually removing the copper bar, achieving better use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is an exploded schematic diagram of the overall structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the installation of the connecting block structure of the present invention;

[0025] Figure 4 It is a schematic cross-sectional view of the side panel structure of the present invention;

[0026] Figure 5 This is a schematic diagram of the installation of a spring structure of the present invention;

[0027] Figure 6 It is a schematic cross-sectional view of the ejector plate structure of the present invention;

[0028] Figure 7 This is a schematic diagram of the installation of the plug structure of the present invention;

[0029] Figure 8 For the present invention Figure 7 A schematic diagram of the structure enlargement in the middle;

[0030] Fig. 9 This is a schematic diagram of the installation of the support ring structure of the present invention.

[0031] In the figure:

[0032] 1. Lower mold; 11. Upper mold; 12. Positioning rod;

[0033] The pitch changing mechanism includes: 201, threaded column; 202, connecting block; 203, side plate; 204, supporting plate; 205, supporting spring; 206, threaded sleeve; 207, spring 1; 208, spring 2; 209, insert block; 210, hand wheel; 211, rack; 212, gear roller;

[0034] The ejection mechanism includes: 301, tension spring; 302, frame; 303, connecting rod; 304, positioning plate; 305, ejection plate; 306, clamping spring; 307, push plate; 308, spring leaf; 309, protrusion; 310, limit plate; 311, bottom plate; 312, lower magnetic block; 313, upper magnetic block;

[0035] The driving mechanism includes: 401, a limiting column; 402, a gear; 403, a pressure plate; 404, a moving plate; 405, a tooth plate; 406, a return spring; 407, a support ring. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figures 1 to 9 As shown, an embodiment of the present invention is: a production mold for forming a copper bar with a large width-to-thickness ratio, comprising a lower mold 1, a positioning rod 12 is fixedly connected to the outer side of the lower mold 1, an upper mold 11 is slidably connected to the top of the positioning rod 12, a variable distance mechanism for shaping copper bars of different thicknesses is arranged on the top of the lower mold 1, an ejection mechanism for unloading the copper bar is arranged inside the lower mold 1, and a driving mechanism for clamping the copper bar during stamping is arranged between the upper mold 11 and the lower mold 1;

[0038] The pitch-changing mechanism includes a threaded column 201, which is rotatably connected to the top of the lower mold 1. The outer thread of the threaded column 201 is connected to a threaded sleeve 206. Five connecting blocks 202 are arranged at the top of the lower mold 1. The five connecting blocks 202 are arranged in a straight line at equal distances. One of the connecting blocks 202 is fixedly connected to the outside of the threaded sleeve 206. The connecting block 202 farthest from the threaded sleeve 206 is fixedly connected to the top of the lower mold 1. The remaining connecting blocks 202 are all slidably connected to the top of the lower mold 1. The outer side of the connecting block 202 is fixedly connected to a side plate 203. A support spring 205 is fixedly connected inside the plate 203, a support plate 204 is fixedly connected to the top of the support spring 205, a spring 1 207 is fixedly connected between adjacent connection blocks 202, plug blocks 209 are slidably connected to both ends of the threaded column 201, a hand wheel 210 is fixedly connected to the end of the plug block 209 away from the threaded column 201, a spring 208 is fixedly connected between the plug block 209 and the inner wall of the threaded column 201, a rack 211 is fixedly connected to the ends of the two plug blocks 209 that are close to each other, and a gear roller 212 is rotatably connected to the inside of the threaded column 201;

[0039] The driving mechanism includes a limiting column 401, which is fixedly connected to the top of the lower mold 1. The outer side of the limiting column 401 is slidably connected to a moving plate 404. The side of the moving plate 404 away from the threaded column 201 is fixedly connected to a return spring 406. The outer side of the limiting column 401 is fixedly connected to a support ring 407. The bottom of the moving plate 404 is fixedly connected to a tooth plate 405. The bottom of the upper mold 11 is fixedly connected to a pressure plate 403. The outer side of the lower mold 1 is rotatably connected to a gear 402, and the gear 402 and the tooth plate 405 are meshed with each other.

[0040] Furthermore, the ejection mechanism includes a tension spring 301, two tension springs 301 are provided, the two tension springs 301 are fixedly connected to the inside of the lower mold 1, the tops of the two tension springs 301 are fixedly connected to a frame 302, a connecting rod 303 is fixedly connected between the two frames 302, the bottom of each connecting block 202 is fixedly connected to a bottom plate 311, the sides of the adjacent two bottom plates 311 are fixedly connected to a clamping spring 306, a positioning plate 304 is provided between the adjacent two bottom plates 311, and the two sides of the positioning plate 304 are respectively The clamping spring 306 is fixedly connected to the two bottom plates 311, the internal sliding connection of the positioning plate 304 is the ejection plate 305, the internal sliding connection of the ejection plate 305 is the push plate 307, a spring leaf 308 is fixedly connected between the push plate 307 and the inner wall of the ejection plate 305, the two sides of the two frames 302 away from each other are fixedly connected with a protrusion 309, the top of the lower mold 1 is fixedly connected with two limit plates 310, the top of the frame 302 is fixedly connected with a lower magnetic block 312, and the bottom of the upper mold 11 is fixedly connected with two upper magnetic blocks 313.

[0041] Furthermore, the outer side of the side plate 203 and the outer side of its internal support plate 204 are located in a vertical plane, and the top of the support plate 204 will support and limit the top of the copper material during stamping, effectively preventing the top of the copper material from being exposed outside the side plate 203 and causing lateral deformation during stamping, thereby ensuring the stamping effect of the copper busbar with a large width-to-thickness ratio, and the bottom of the side plate 203 fits with the top of the lower mold 1.

[0042] Furthermore, one end of the plug block 209 away from the spring 208 passes through the gear 402, and the rotation of the plug block 209 can drive the gear 402 to rotate. The rack 211 is slidably connected to the inside of the threaded column 201, and the two racks 211 are parallel to each other. The two racks 211 are respectively meshed and connected to the two sides of the gear roller 212. When one of the racks 211 moves, it can drive the gear roller 212 to rotate, thereby driving the other rack 211 to move synchronously in the opposite direction.

[0043] Furthermore, the sides of the pressing plate 403 and the movable plate 404 that are close to each other are both set as inclined surfaces, and the inclined surfaces of the pressing plate 403 and the movable plate 404 are parallel. When the pressing plate 403 moves downward until the inclined surface contacts the inclined surface of the movable plate 404, the pressing plate 403 continues to move downward and pushes the movable plate 404 away from the side plate 203.

[0044] Furthermore, the support ring 407 is sleeved on the outside of the limiting column 401, and the limiting column 401 and the support ring 407 are fixed by bolts. The position of the support ring 407 can be adjusted to adjust the distance that the pressure plate 403 pushes the movable plate 404 when it descends, thereby controlling the moving distance of the side plate 203 and making the moving amplitude of the side plate 203 controllable, which is convenient for better limiting the copper material. The support ring 407 fits with the side of the movable plate 404 away from the reset spring 406.

[0045] Furthermore, the connecting rod 303 passes through each ejection plate 305 and is slidably connected to the ejection plate 305. A slide groove is provided on the top of the lower mold 1. The positioning plate 304 is slidably connected to the slide groove. The equidistant opening and closing of the connecting block 202 can drive each positioning plate 304 to move equidistantly, so that each positioning plate 304 can always be located in the center position of the gap between the side plates 203, which is convenient for unloading the formed copper busbar, and the end of the push plate 307 away from the spring 308 abuts against the inner wall of the slide groove.

[0046] Furthermore, the lower magnetic block 312 and the upper magnetic block 313 are on a vertical line, the limit plate 310 is L-shaped, and the top of the limit plate 310 is blocked above the protrusion 309. The function of the limit plate 310 is to limit the rising distance of the protrusion 309 and the frame 302, thereby preventing the tension spring 301 from being stretched too long and causing fatigue and loss of elasticity.

[0047] Working principle: In the initial state, the return spring 406 is in a compressed state, the support ring 407 is supported on the side of the moving plate 404 away from the return spring 406 and fixed to the limit column 401 by bolts, the spring 1 207 and the clamping spring 306 are both in a compressed state, the distance between adjacent connecting blocks 202 is in the maximum state, the upper mold 11 is fixed to the external hydraulic rod, and the spring leaf 308 is in a compressed state;

[0048] Before processing the copper bar, the hand wheel 210 is manually pushed toward the direction close to the gear 402. The movement of the hand wheel 210 drives the plug block 209 fixed thereto to move toward the inside of the threaded column 201. The plug block 209 retracts into the threaded column 201 to compress the spring 208 fixed thereto. The movement of the plug block 209 drives the rack 211 fixed thereto to move. The movement of the rack 211 drives the gear roller 212 to rotate. The rotation of the gear roller 212 drives another rack 211 to move. The movement of the rack 211 drives The plug block 209 fixed thereto moves toward the inside of the threaded column 201, so that the two plug blocks 209 are synchronously contracted to the inside of the threaded column 201, and the two springs 208 are compressed by the moving plug block 209, and then the hand wheel 210 is manually turned, and the rotation of the hand wheel 210 drives the plug block 209 fixed thereto to rotate, and the rotation of the plug block 209 drives the threaded column 201 to rotate. Since the threaded sleeve 206 is fixedly connected to the inside of the connecting block 202, and the connecting block 202 is slidably connected to the top of the lower mold 1, The threaded column 201 rotates to drive the threaded sleeve 206 and the connecting block 202 fixed outside the threaded sleeve 206 to slide on the top of the lower mold 1. When the connecting block 202 moves toward another connecting block 202 close to it, since the connecting block 202 farthest away is fixed to the lower mold 1, the movement of the connecting block 202 drives the spring 1 207 fixed thereto to move, and the movement of the spring 1 207 drives another connecting block 202 to move. Since the compression degree of each spring 1 207 is the same, the distance between each connecting block 202 is synchronously reduced through the above principle, and the movement of the connecting block 202 drives the side plate 203 fixed thereto to move, so that the distance between each side plate 203 is synchronously reduced. Through this design, the distance between adjacent side plates 203 can be adjusted, and multiple copper materials can be stamped at the same time, thereby improving the production efficiency of the copper bar, and the side plate 203 can be supported on the outside of copper bars of different thicknesses, which is also convenient for stamping copper bars of different thicknesses, thereby improving the applicability of the device.

[0049] After the spacing between the side plates 203 is adjusted, the hand wheel 210 is no longer pushed manually, and the stretching elastic force of the second spring 208 drives the plug block 209 to re-enter the adjacent gear 402. After the spacing between the adjacent connecting blocks 202 is reduced, each clamping spring 306 is compressed. Since the compression degree of each clamping spring 306 is the same, the positioning plate 304 is always located in the center of the gap between the adjacent connecting blocks 202. During the movement, the positioning plate 304 drives the ejection plate 305 to slide on the outside of the connecting rod 303. Each ejection plate 305 is located in the gap between the adjacent side plates 203. At this time, the spacing between the adjacent side plates 203 is four to ten centimeters larger than the thickness of the copper bar. The support is manually The bolts on the ring 407 are loosened, and then the support ring 407 is pushed. The stretching elastic force of the reset spring 406 drives the movable plate 404 to slide on the limit column 401. After adjusting the position of the movable plate 404, the support ring 407 is manually fixed to the limit column 401 by bolts, so that the support ring 407 supports the movable plate 404. This design can adjust the position of the movable plate 404, thereby controlling the distance that the pressing plate 403 pushes the movable plate 404 each time it descends, thereby controlling the moving distance of the connecting block 202 and the side plate 203 under the transmission of the tooth plate 405, the gear 402 and the threaded column 201, so that the side plate 203 can clamp the copper bar more tightly, thereby improving the copper bar stamping effect;

[0050] When the copper bar is subjected to stamping and forming processing, the copper material is manually placed in the gap between the adjacent side plates 203, and the hydraulic rod is extended to drive the upper mold 11 to move downward, and the upper mold 11 squeezes the copper material downward to deform the copper material. When the upper mold 11 drops to the lowest position, the lower magnetic block 312 and the upper magnetic block 313 are attracted to each other by magnetic attraction. During the pressing process of the upper mold 11, the pressing plate 403 is driven to move downward, and when the pressing plate 403 moves downward until the inclined surface contacts the inclined surface of the moving plate 404, the pressing plate 403 continues to move downward to push the moving plate 404 away from the side plate 203, and the reset spring 406 is further compressed. The moving plate 404 moves to drive the tooth plate 405 to move, and the tooth plate 405 moves to drive the gear 402 to rotate. The rotation of the gear 402 drives the plug block 209 that penetrates it to rotate, and the rotation of the plug block 209 drives the threaded column 201 to rotate, which is consistent with the above principle. At the same time, the threaded column 201 rotates to drive each connecting block 202 and the side plate 203 to shrink equidistantly, and each side plate 203 shrinks to clamp and limit the copper material. When the upper mold 11 moves upward, after the movable plate 404 loses the extrusion of the pressure plate 403, the stretching elastic force of the reset spring 406 drives the movable plate 404 to reset, and the movable plate 404 moves to drive the tooth plate 405 to move in the opposite direction. According to the above transmission principle, each side plate 203 is reset. Through this design, when the copper material is fed, the friction force when the copper material is inserted into the gap between the side plates 203 is reduced, making the copper material feeding more labor-saving, and the connection between the side plate 203 and the copper material is tighter when the copper material is stamped, thereby improving the limiting effect of the side plate 203. At the same time, this design also effectively prevents the copper material from being deformed after stamping and the pressure between the side plate 203 increases, which makes the copper material difficult to unload, thereby improving the use effect of the device.

[0051] When the upper mold 11 moves downward to stamp the copper material, the upper mold 11 will press down the support plate 204, and the support plate 204 will move downward to compress the support spring 205. The top of the support plate 204 will support and limit the top of the copper material during stamping, effectively preventing the top of the copper material from being exposed outside the side plate 203 and causing lateral deformation during stamping, thereby ensuring the stamping effect of the copper busbar with a large width-to-thickness ratio and improving the qualified rate of copper busbar production;

[0052] After the stamping is completed, the upper mold 11 moves upward to drive the upper magnetic block 313 to move upward, the upper magnetic block 313 moves upward to drive the lower magnetic block 312 to move upward, the lower magnetic block 312 moves upward to drive the frame 302 and the connecting rod 303 to move upward, the tension spring 301 is stretched, the connecting rod 303 moves upward to drive the ejection plate 305 to move upward, the ejection plate 305 moves to drive the push plate 307 to emerge from the chute of the lower mold 1, after the push plate 307 loses the support of the inner wall of the chute, the stretching elastic force of the spring leaf 308 drives the push plate 307 to extend out of the ejection plate 305, at this time the push plate 307 is inserted into the bottom surface of the copper bar and the lower mold 1, the ejector plate 305 continues to drive the push plate 307 to move upward, and the push plate 307 moves upward to lift the copper bar from the gap between the side plates 203. After the copper bar is lifted, the contraction elastic force of the tension spring 301 drives the frame 302 to reset, and the push plate 307 shrinks into the ejector plate 305 under the pressure of the inner wall of the slide groove to compress the spring leaf 308. Through this design, the copper bar can be automatically lifted and unloaded after the copper bar is stamped and formed, which simplifies the processing steps of the copper bar forming, thereby improving the processing efficiency of the copper bar, while saving manpower and eliminating the safety hazards when manually taking out the copper bar, achieving better use effect.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. 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 terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A production die for forming a copper bar with a large width-to-thickness ratio, comprising a lower die (1), characterized in that: The outer side of the lower mold (1) is fixedly connected to a positioning rod (12), the top of the positioning rod (12) is slidably connected to the upper mold (11), the top of the lower mold (1) is provided with a variable distance mechanism for shaping copper bars of different thicknesses, the interior of the lower mold (1) is provided with an ejection mechanism for unloading the copper bars, and a driving mechanism for clamping the copper bars during stamping is provided between the upper mold (11) and the lower mold (1); The pitch-changing mechanism comprises a threaded column (201), the threaded column (201) is rotatably connected to the top of the lower mold (1), the outer thread of the threaded column (201) is connected to a threaded sleeve (206), and five connecting blocks (202) are arranged on the top of the lower mold (1), and the five connecting blocks (202) are arranged in a straight line at equal distances, one of the connecting blocks (202) is fixedly connected to the outside of the threaded sleeve (206), the connecting block (202) farthest from the threaded sleeve (206) is fixedly connected to the top of the lower mold (1), and the remaining connecting blocks (202) are all slidably connected to the top of the lower mold (1), and the outer side of the connecting block (202) is fixedly connected to a side plate (203). The inside of the side plate (203) is fixedly connected with a support spring (205), the top of the support spring (205) is fixedly connected with a support plate (204), a spring 1 (207) is fixedly connected between adjacent connecting blocks (202), both ends of the threaded column (201) are slidably connected with plug blocks (209), one end of the plug block (209) away from the threaded column (201) is fixedly connected with a hand wheel (210), a spring 2 (208) is fixedly connected between the plug block (209) and the inner wall of the threaded column (201), the ends of the two plug blocks (209) that are close to each other are fixedly connected with a rack (211), and the inside of the threaded column (201) is rotatably connected with a gear roller (212); The driving mechanism comprises a limiting column (401), wherein the limiting column (401) is fixedly connected to the top of the lower mold (1), the outside of the limiting column (401) is slidably connected to a moving plate (404), the side of the moving plate (404) away from the threaded column (201) is fixedly connected to a return spring (406), the outside of the limiting column (401) is fixedly connected to a support ring (407), the bottom of the moving plate (404) is fixedly connected to a toothed plate (405), the bottom of the upper mold (11) is fixedly connected to a pressing plate (403), the outer side of the lower mold (1) is rotatably connected to a gear (402), and the gear (402) and the toothed plate (405) are meshed with each other; One end of the plug block (209) away from the second spring (208) passes through the gear (402), and the rack (211) is slidably connected to the inside of the threaded column (201), the two racks (211) are parallel to each other, and the two racks (211) are respectively meshed and connected to the two sides of the gear roller (212); The sides of the pressing plate (403) and the moving plate (404) that are close to each other are both set as inclined surfaces, and the inclined surfaces of the pressing plate (403) and the moving plate (404) are parallel; The support ring (407) is sleeved on the outside of the limiting column (401), the limiting column (401) and the support ring (407) are fixed by bolts, and the support ring (407) is in contact with a side of the moving plate (404) away from the return spring (406).

2. A production die for forming a copper busbar with a large width-to-thickness ratio according to claim 1, characterized in that: The ejection mechanism comprises a tension spring (301), wherein two tension springs (301) are provided, and the two tension springs (301) are fixedly connected to the inside of the lower mold (1), the tops of the two tension springs (301) are fixedly connected to a frame (302), a connecting rod (303) is fixedly connected between the two frames (302), the bottom of each connecting block (202) is fixedly connected to a bottom plate (311), the adjacent sides of two adjacent bottom plates (311) are fixedly connected to a clamping spring (306), a positioning plate (304) is provided between the two adjacent bottom plates (311), and the two sides of the positioning plate (304) are respectively connected to the two The clamping spring (306) between the bottom plate (311) is fixedly connected, the positioning plate (304) is internally slidably connected to the ejection plate (305), the ejection plate (305) is internally slidably connected to the push plate (307), a spring sheet (308) is fixedly connected between the push plate (307) and the inner wall of the ejection plate (305), the two sides of the two frames (302) that are away from each other are fixedly connected to a protrusion (309), the top of the lower mold (1) is fixedly connected to two limit plates (310), the top of the frame (302) is fixedly connected to a lower magnetic block (312), and the bottom of the upper mold (11) is fixedly connected to two upper magnetic blocks (313).

3. A production die for forming a copper bar with a large width-to-thickness ratio according to claim 1, characterized in that: The outer side of the side plate (203) and the outer side of the inner support plate (204) are located in a vertical plane, and the bottom of the side plate (203) is in contact with the top of the lower mold (1).

4. A production die for forming a copper bar with a large width-to-thickness ratio according to claim 2, characterized in that: The connecting rod (303) passes through each ejection plate (305) and is slidably connected to the ejection plate (305). A slide groove is provided on the top of the lower mold (1). The positioning plate (304) is slidably connected to the slide groove. The end of the push plate (307) away from the spring sheet (308) abuts against the inner wall of the slide groove.

5. The production mold for forming a copper busbar with a large width-to-thickness ratio according to claim 2, characterized in that: The lower magnetic block (312) and the upper magnetic block (313) are located on a vertical straight line, the limiting plate (310) is L-shaped, and the top end of the limiting plate (310) is blocked above the protrusion (309).

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