Accurate and efficient copper bar punching device

Abstract

An accurate and efficient copper bar punching device comprises a workbench, a feeding frame erected on the workbench and an unwinding frame installed on the workbench, a flattening mechanism, a punching mechanism and a cutting mechanism are sequentially installed on the feeding frame in the extending direction of a copper bar, and a limiting hole corresponding to the cross section of the copper bar in size is formed in a punching base. The limiting hole laterally penetrates through the stamping seat, the two ends of the limiting hole correspond to the limiting groove, the stamping seat is further provided with a stamping hole which vertically penetrates through the stamping seat and communicates with the limiting hole, and the stamping head penetrates through the stamping hole to act on the copper bar in the limiting hole for punching during punching; according to the mode that the copper bar penetrates through the limiting hole and then is punched through the punching hole, the punched hole in the copper bar can be prevented from being clamped on the punching head and moving along with the punching head, the purpose of accurate punching can be achieved through cooperation of the limiting hole during punching, the error-tolerant rate is higher, and therefore the punching efficiency of the copper bar is improved, and the punching quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of copper bar punching devices, and particularly relates to an accurate and efficient copper bar punching device. Background Technique

[0002] In the production and application of lithium batteries, copper bars usually refer to copper busbar flexible connections or copper foils and other copper materials, which are block-shaped metals used for power connection between individual lithium batteries. They play an important role. Copper is an excellent conductive material, and its conductivity is far better than that of many other metals. In lithium batteries, the copper bars used for power connection can ensure the efficient transmission of current inside the battery, reduce energy loss, and improve the overall performance of the battery.

[0003] In the existing copper bar punching devices, referring to the fixture copper bar manufacturing device disclosed in the Chinese utility model patent with the patent application number CN201822214340.0, it includes a conveying mechanism, a straightening mechanism and a cutting mechanism. The conveying mechanism is used to convey the unrolled copper bar. The straightening mechanism is used to straighten the unrolled copper bar. The cutting mechanism is used to cut the straightened copper bar according to a preset length. The above-mentioned fixture copper bar manufacturing device unrolls and conveys the coiled copper bar, then performs straightening treatment, and cuts the straightened copper bar into copper bars of a preset length. In this way, there is no need for manual scribing and manual cutting of the already straightened and formed copper bars purchased, which can avoid a lot of waste of corner and tail materials during the cutting of the purchased copper bars and reduce costs. In addition, since there is no need for manual scribing and cutting, but direct cutting operation by machine, the production efficiency can be improved and the labor intensity of workers can be reduced.

[0004] However, in the above structure, by setting a limiting groove for the copper bar to pass through on the upper surface of the second lower template, when punching, the second upper template drives the punching part to press down, and the punching part passes through the copper bar to complete punching. When the second upper template rises, the punching hole on the copper bar may be stuck in the punching part due to thermal expansion and contraction, and thus rise together with the punching part. This will cause the copper bar to be unable to move continuously, thereby affecting the next punching and reducing the punching efficiency. If the copper bar drops during the rising of the punching part, it may deviate from the limiting groove due to vibration, resulting in the punching part being unable to accurately punch the copper bar and affecting the punching quality. Content of the Utility Model

[0005] In order to overcome the deficiencies of the prior art, the utility model provides an accurate and efficient copper bar punching device.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] An accurate and efficient copper bar punching device, including a workbench, a feeding rack erected on the workbench, and a unwinding rack installed on the workbench. A limiting groove is provided on the feeding rack, and a copper bar is wound around the unwinding rack. The movable end of the copper bar extends from one end of the limiting groove to the other end. Along the extending direction of the copper bar on the feeding rack, a flattening mechanism, a punching mechanism, and a cutting mechanism are sequentially installed. The punching mechanism includes a punching seat fixed on the feeding rack, a punch head seat fixed on the top of the punching seat, a punching cylinder fixed on the top of the punch head seat, and a punching head movably installed in the punch head seat. A limiting hole corresponding to the cross-sectional size of the copper bar is provided on the punching seat. The limiting hole penetrates the punching seat laterally. A punching hole for the punching head to pass through is also provided on the punching seat. The punching hole penetrates the punching seat vertically and communicates with the limiting hole. The punching head passes through the punching hole and acts on the copper bar in the limiting hole to punch holes.

[0008] In the present utility model, a first installation groove for installing the punching seat is provided on the feeding rack. A blanking port for recycling the punching waste is further provided at the bottom of the first installation groove. The blanking port communicates with the bottom of the punching hole. The punching seat is fixed in the first installation groove by bolts.

[0009] Further, after the punching seat is installed, the limiting hole is aligned and communicated with the limiting groove.

[0010] In the present utility model, a second installation groove for installing the punch head seat is provided on the top of the punching seat. The punching hole is arranged in the second installation groove; the punch head seat is of a "return" type structure. The punch head seat is fixed in the second installation groove. The through hole in the middle of the punch head seat communicates with the punching hole. The punching head is slidably installed in the through hole in the middle of the punch head seat. The top of the punching head is connected to the punching cylinder. The punching cylinder drives the punching head to perform a piston movement in the through hole of the punch head seat.

[0011] Further, the punching head includes a cutter head and a slider. The cutter head is detachably installed on the slider. An installation hole for installing the cutter head is provided on the slider. A jack is further provided on the side of the installation hole. A pin is provided in the jack. The cutter head is fixed in the installation hole by the pin.

[0012] In the present utility model, the flattening mechanism includes a lower roller arranged below the limiting groove and an upper roller arranged above the limiting groove. The upper roller and the lower roller clamp the copper bar up and down.

[0013] Further, an installation opening is provided on the feeding rack so that part of the limiting groove is suspended. The lower roller is arranged in the installation opening and below the suspended part of the limiting groove. A rotating seat is provided on the feeding rack. The upper roller is rotatably installed on the rotating seat and above the suspended part of the limiting groove.

[0014] Further, an installation frame is fixed on the workbench, a driving motor is fixed on the installation frame, and the lower roller is connected to the driving motor.

[0015] In the present utility model, the cutting mechanism is arranged at the extending end of the limiting groove on the feeding frame. The cutting mechanism includes a cutting seat fixed at the end of the feeding frame, a cutter slidably matched on the cutting seat, and a driving cylinder connected to the bottom of the cutter. The driving cylinder drives the cutter to slide up and down along the cutting seat. Specifically, the top plane of the cutting seat is flush with the bottom surface of the limiting groove to form a cutting opening, and a pressing block for pressing the copper bar is further arranged above the cutting opening.

[0016] The present utility model has the following advantages and beneficial effects:

[0017] Limiting holes corresponding to the cross-sectional size of the copper bar are arranged on the punching seat. The limiting holes penetrate through the punching seat laterally, and both ends of the limiting holes face the limiting grooves. A punching hole that penetrates through the punching seat vertically and communicates with the limiting holes is also arranged on the punching seat. When punching, the punching head passes through the punching hole and acts on the copper bar in the limiting hole to punch. This way of punching the copper bar through the limiting hole via the punching hole can not only prevent the punched hole on the copper bar from getting stuck on the punching head and moving with the punching head, but also achieve the purpose of precise punching through the cooperation of the limiting holes during punching, with a higher error tolerance rate, thereby improving the punching efficiency of the copper bar and the punching quality. Description of the Drawings

[0018] The following further describes the present utility model in conjunction with the drawings and embodiments:

[0019] Figure 1 It is a schematic diagram of the punching device in this embodiment;

[0020] Figure 2 It is an installation schematic diagram of the punching mechanism and the flattening mechanism in this embodiment;

[0021] Figure 3 It is a schematic diagram of the structures of the punching seat and the punch head seat in this embodiment. Specific Embodiments

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. The present utility model is not limited to the following embodiments.

[0023] Such as Figures 1 to 3As shown in the figure, this embodiment discloses an accurate and efficient copper bar punching device, which includes a workbench 1, a feeding rack 2 erected on the workbench 1, and a pay-off rack 3 installed on the workbench 1. The feeding rack 2 is provided with a limiting groove 20 for the copper bar to slide. The copper bar is wound around the pay-off rack 3, and the movable end of the copper bar extends from one end of the limiting groove 20 to the other end. Along the extension direction of the copper bar, a flattening mechanism 4 for flattening the copper bar and driving the copper bar to move, a punching mechanism 5 for punching the copper bar, and a cutting mechanism 6 for cutting the punched copper bar into small segments are sequentially installed on the feeding rack 2. The punching mechanism 5 includes a punching seat 51 fixed on the feeding rack 2, a punch head seat 52 fixed on the top of the punching seat 51, a punching cylinder 53 fixed on the top of the punch head seat 52, and a punch head 54 movably installed in the punch head seat 52. The punching seat 51 is provided with a limiting hole 510 corresponding to the cross-sectional size of the copper bar. The limiting hole 510 penetrates the punching seat 51 laterally. It can be determined that when the copper bar passes through the punching seat 51, it passes through the limiting hole 510. The punching seat 51 is further provided with a punching hole 511 for the punch head 54 to pass through. The punching hole 511 penetrates the punching seat 51 up and down and communicates with the limiting hole 510. When punching, the punch head 54 passes through the punching hole 511 and acts on the copper bar in the limiting hole 510 to punch holes. This way of punching the copper bar through the limiting hole 510 and then through the punching hole 511 can not only prevent the punched hole on the copper bar from getting stuck on the punch head 54 and moving with the punch head 54, but also achieve the purpose of accurate punching through the cooperation of the limiting hole 510 during punching, with a higher error tolerance, thereby improving the punching efficiency of the copper bar and the punching quality.

[0024] In this embodiment, the feeding rack 2 is provided with a first installation groove 21 for installing the punching seat 51. The bottom of the first installation groove 21 is further provided with a material discharge port 22 for recycling the punching waste. The material discharge port 22 communicates with the bottom of the punching hole 511. The punching seat 51 is fixed in the first installation groove 21 by bolts. Specifically, when the punching seat 51 is installed, the limiting hole 510 is aligned and communicated with the limiting groove 20, so that the copper bar can smoothly pass through the limiting hole 510 when extending along the limiting groove 20, avoiding bending and increasing the friction force, and improving the smoothness of the copper bar movement.

[0025] In this embodiment, a second installation groove 512 for installing the punch head seat 52 is provided at the top of the stamping seat 51, and the stamping hole 511 is arranged in the second installation groove 512; specifically, the punch head seat 52 has a "return" - shaped structure. The periphery of the punch head seat 52 is fixed in the second installation groove 512 by bolts. The through - hole 520 in the middle of the punch head seat 52 is communicated with the stamping hole 511. The stamping head 54 is slidably installed in the through - hole 520 in the middle of the punch head seat 52. The top of the stamping head 54 is connected to the stamping cylinder 53. The stamping cylinder 53 drives the stamping head 54 to perform piston motion in the through - hole 520 of the punch head seat 52. Through the second installation groove 512, the punch head seat 52 and the stamping head 54 can be quickly positioned and installed, and the stability of the stamping head 54 sliding in the punch head seat 52 can also be improved.

[0026] Furthermore, the stamping head 54 includes a tool bit 541 and a slider 542. The tool bit 541 is detachably installed on the slider 542. An installation hole 543 for installing the tool bit 541 is provided on the slider 542. A jack 544 is also provided on the side of the installation hole 543. A pin (the pin is a conventional component and is not shown in the drawings) is arranged in the jack 544. The tool bit 541 is fixed in the installation hole 543 by the pin. By means of the pin, the disassembly and assembly of the tool bit 541 can be realized, so that the tool bit 541 can be quickly replaced.

[0027] In this embodiment, the flattening mechanism 4 includes a lower roller 41 arranged below the limiting groove 20 and an upper roller 42 arranged above the limiting groove 20. The upper roller 42 and the lower roller 41 clamp the copper strip up and down. Specifically, an installation opening 23 is provided on the feeding frame 2, so that part of the limiting groove 20 is suspended. The lower roller 41 is arranged in the installation opening 23 and is located below the suspended part of the limiting groove 20. Rotating seats 43 are provided on both sides of the limiting groove 20 on the feeding frame 2. The upper roller 42 is rotatably installed on the rotating seats 43 and is located above the suspended part of the limiting groove 20. Preferably, an installation frame 44 is fixed on the workbench 1, and a driving motor 45 is fixed on the installation frame 44. The lower roller 41 is connected to the driving motor 45.

[0028] In this embodiment, the cutting mechanism 6 is arranged at the extended end of the limiting groove 20 on the feeding frame 2. The cutting mechanism 6 includes a cutting seat 61 fixed at the end of the feeding frame 2, a cutter 62 slidably matched with the cutting seat 61, and a driving cylinder 63 connected to the bottom of the cutter 62. The driving cylinder 63 drives the cutter 62 to slide up and down along the cutting seat 61. Specifically, the top plane of the cutting seat 61 is flush with the bottom surface of the limiting groove 20 to form a cutting opening 60. A pressing block 64 for pressing the copper strip is also provided above the cutting opening 60.

[0029] The above content described in this specification is only an example of the present utility model. Those skilled in the technical field to which the present utility model pertains can make various modifications or supplements to the specific embodiments described or use similar methods for substitution, as long as they do not deviate from the content of this specification of the present utility model or exceed the scope defined by this claims, and all should belong to the protection scope of the present utility model.

Claims

1. An accurate and efficient copper bar punching device, comprising a workbench (1), a feeding rack (2) erected on the workbench (1), and a unwinding rack (3) installed on the workbench (1). A limiting groove (20) is provided on the feeding rack (2). A copper bar is wound around the unwinding rack (3), and the movable end of the copper bar extends from one end to the other end of the limiting groove (20). Along the extending direction of the copper bar, a flattening mechanism (4), a punching mechanism (5), and a cutting mechanism (6) are sequentially installed on the feeding rack (2), and it is characterized in that: The punching mechanism (5) includes a punching base (51) fixed on the feeding rack (2), a punch head base (52) fixed on the top of the punching base (51), a punching cylinder (53) fixed on the top of the punch head base (52), and a punch head (54) movably installed in the punch head base (52). A limiting hole (510) corresponding to the cross-sectional size of the copper bar is provided on the punching base (51). The limiting hole (510) penetrates through the punching base (51) laterally. A punching hole (511) for the punch head (54) to pass through is further provided on the punching base (51). The punching hole (511) penetrates through the punching base (51) vertically and communicates with the limiting hole (510). The punch head (54) passes through the punching hole (511) and acts on the copper bar in the limiting hole (510) to punch holes.

2. The precise and efficient copper bar punching device according to claim 1, wherein: A first installation groove (21) for installing the punching base (51) is provided on the feeding rack (2). A material discharge port (22) for recycling the punching waste is further provided at the bottom of the first installation groove (21). The material discharge port (22) communicates with the bottom of the punching hole (511). The punching base (51) is fixed in the first installation groove (21) by bolts.

3. The precise and efficient copper bar punching device according to claim 2, characterized in that: After the punching base (51) is installed, the limiting hole (510) is aligned and communicated with the limiting groove (20).

4. The precise and efficient copper bar punching device according to claim 2, wherein: A second installation groove (512) for installing the punch head base (52) is provided on the top of the punching base (51). The punching hole (511) is arranged in the second installation groove (512). The punch head base (52) is of a "return" type structure. The punch head base (52) is fixed in the second installation groove (512). The through hole (520) in the middle of the punch head base (52) communicates with the punching hole (511). The punch head (54) is slidably installed in the through hole (520) in the middle of the punch head base (52). The top of the punch head (54) is connected to the punching cylinder (53). The punching cylinder (53) drives the punch head (54) to perform a piston motion in the through hole (520) of the punch head base (52).

5. The precise and efficient copper bar punching device according to claim 4, characterized in that: The punch head (54) includes a cutter head (541) and a slider (542). The cutter head (541) is detachably installed on the slider (542). An installation hole (543) for installing the cutter head (541) is provided on the slider (542). A jack (544) is further provided on the side of the installation hole (543). A pin is provided in the jack (544). The cutter head (541) is fixed in the installation hole (543) by the pin.

6. The precise and efficient copper bar punching device according to claim 1, characterized in that: The flattening mechanism (4) includes a lower roller (41) arranged below the limiting groove (20) and an upper roller (42) arranged above the limiting groove (20). The upper roller (42) and the lower roller (41) clamp the copper bar up and down.

7. An accurate and efficient copper bar punching device according to claim 6, characterized in that: The feeding rack (2) is provided with a mounting opening (23) such that the limiting groove (20) is partially suspended. The lower roller (41) is disposed in the mounting opening (23) and below the suspended portion of the limiting groove (20). The feeding rack (2) is provided with a rotating seat (43). The upper roller (42) is rotatably mounted on the rotating seat (43) and above the suspended portion of the limiting groove (20).

8. The precise and efficient copper bar punching device according to claim 7, wherein: An installation rack (44) is fixed on the workbench (1). A driving motor (45) is fixed on the installation rack (44). The lower roller (41) is connected to the driving motor (45).

9. The precise and efficient copper bar punching device according to claim 1, characterized in that: The cutting mechanism (6) is disposed at the extending end of the limiting groove (20) on the feeding rack (2). The cutting mechanism (6) includes a cutting seat (61) fixed to the end of the feeding rack (2), a cutting knife (62) slidably fitted on the cutting seat (61), and a driving cylinder (63) connected to the bottom of the cutting knife (62). The driving cylinder (63) drives the cutting knife (62) to slide up and down along the cutting seat (61). Specifically, the top plane of the cutting seat (61) is flush with the bottom surface of the limiting groove (20) to form a cutting opening (60). A pressing block (64) for pressing the copper bar is further provided above the cutting opening (60).

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