Cutting and punching machine for battery piece machining

Abstract

The invention relates to the technical field of cutting and punching machines, and provides a cutting and punching machine for battery piece machining, which comprises a working table, a feeding mechanism, a discharging opening, a punching mechanism, a cutting mechanism and a driving mechanism, the working table is fixedly connected to the top end of a rack, the feeding mechanism is arranged at the top of the working table and is used for conveying and feeding coiled bus bars, and the discharging opening is formed in the top of the working table; a discharging opening is fixedly formed in the top end of the workbench, the punching mechanism is arranged at the top of the workbench and used for punching bus bars, the cutting mechanism is arranged at the top of the workbench and used for cutting the bus bars, and the driving mechanism is arranged at the top of the punching mechanism and the top of the cutting mechanism and used for controlling the punching mechanism and the cutting mechanism to ascend and descend. By means of the technical scheme, the problems that in the prior art, a bus bar cutting and punching device for battery piece machining is single in function and low in production efficiency are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of cutting and punching machines, and in particular to a cutting and punching machine for processing battery cells. Background Art

[0002] A solar cell is a semiconductor device that uses the photoelectric effect to convert light energy into electrical energy. It is an important component of a solar power generation device. During the production process of solar cells, due to the limited power generation capacity of a single solar cell, photovoltaic welding ribbons are needed to connect multiple solar cells in series and in parallel to achieve higher output voltage and current. Photovoltaic welding ribbons are divided into interconnection bars and bus bars. Interconnection bars are used to connect a single solar cell into a battery string group, and bus bars are used to connect interconnection bars on multiple battery strings together through welding, so as to collect the current generated on the solar cell and transmit it to the output end of the component.

[0003] During the production of battery cells, the rolled busbars need to be cut into different lengths and shapes according to the different welding positions of the busbars on the battery string and different process requirements. Some busbars also need to be processed with holes. The existing busbar cutting devices have relatively single functions and cannot simultaneously meet different processing requirements such as busbar cutting and punching. During production, multiple processes are often required, resulting in more busbar processing processes and cumbersome operations for workers, which affects the production efficiency of the battery cells. Therefore, the present invention proposes a cutting and punching machine for battery cell processing. Summary of the invention

[0004] The present invention provides a cutting and punching machine for processing battery cells, which solves the problem of single function and low production efficiency of busbar cutting and punching devices for processing battery cells in the related art.

[0005] The technical solution of the present invention is as follows: A cutting and punching machine for processing battery cells, comprising a workbench, a frame, a loading mechanism, a unloading port, a punching mechanism, a cutting mechanism and a driving mechanism, wherein the workbench is fixedly connected to the top of the frame, the loading mechanism is arranged on the top of the workbench, and is used to transport and load rolled bus bars, the unloading port is fixedly installed on the top of the workbench, the punching mechanism is arranged on the top of the workbench, and is used to punch holes on the bus bars, the cutting mechanism is arranged on the top of the workbench, and is used to cut the bus bars, and the driving mechanism is arranged on the top of the punching mechanism and the cutting mechanism, and is used to control the punching mechanism and the cutting mechanism to lift and move.

[0006] Preferably, the loading mechanism includes a support frame 1, a support frame 2, a reel core shaft, a guide roller, a mounting frame 1, a stepper motor, a feed roller and a guide plate; the top of the workbench is fixedly connected with two support frames 1 and two support frames 2, the reel core shaft is rotatably connected between the two support frames 1, the guide roller is rotatably connected between the two support frames 2, the top of the workbench is fixedly connected with two mounting frames 1, the stepper motor is fixedly installed on one of the mounting frames 1, the feed roller is rotatably connected between the two mounting frames 1, one end of the feed roller is fixedly connected to the output end of the stepper motor, and the guide plate is fixedly connected between the two mounting frames 1.

[0007] Preferably, the driving mechanism comprises a guide column, a mounting platform, a second mounting frame, a second motor, a transmission shaft, a driving gear, a crankshaft and a driven gear, a plurality of the guide columns are fixedly mounted on the workbench, the mounting platform is fixedly connected to the top ends of the plurality of guide columns, the top end of the mounting platform is fixedly connected to two of the second mounting frames, the second motor is fixedly mounted on one of the second mounting frames, a transmission shaft is rotatably connected to the second mounting frame, one end of the transmission shaft is fixedly connected to the output end of the second motor, the other end of the transmission shaft is fixedly connected to the driving gear, the crankshaft is rotatably connected between the two second mounting frames, two eccentric shafts are arranged on the crankshaft, the driven gear is fixedly connected to the crankshaft, and the driving gear meshes with the driven gear.

[0008] Preferably, the punching mechanism includes a sleeve, a connecting rod, a connecting column, an upper die base, an upper template, a lower die base and a lower template, the sleeve is rotatably connected to one of the eccentric shafts, the top of the connecting rod is fixedly connected to the sleeve, the bottom end of the connecting rod is rotatably connected to the connecting column, and the connecting column is slidably matched with the mounting table, the upper die base is fixedly connected to the bottom end of the connecting column, the upper die base is slidably matched with a plurality of guide columns, the upper template is fixedly mounted on the bottom end of the upper die base, the lower die base is fixedly mounted on the top of the workbench, and the lower template is fixedly mounted on the top of the lower die base.

[0009] Preferably, the cutting mechanism comprises a second sleeve, a second connecting rod, a second connecting column, a tool holder, a tool seat, a cutting knife and a lower cutting block, the second sleeve is rotatably connected to the other eccentric shaft, the top end of the second connecting rod is fixedly connected to the second sleeve, the bottom end of the second connecting rod is rotatably connected to the second connecting column, and the second connecting column is slidably matched with the mounting table, the top end of the workbench is fixedly connected to two of the tool holders, the tool seat is slidably connected between the two tool holders, the top end of the tool seat is fixedly connected to the second connecting rod, the cutting knife is installed on the tool holder, and the lower cutting block is fixedly installed between the two tool holders.

[0010] Furthermore, a gap is provided between the guide plate and the feed roller.

[0011] Furthermore, the outer covers of the driving gear and the driven gear are provided with protective covers, and the protective covers are detachably mounted on the mounting platform.

[0012] Furthermore, the two eccentric shafts and the two ends of the crankshaft are not on the same axis.

[0013] Furthermore, a through slot is provided at the top of the lower template, and the bus bar is slidably matched with the through slot.

[0014] Furthermore, the bottom end of the through slot, the top end of the guide plate and the top end of the lower cutting block are on the same horizontal plane.

[0015] The working principle and beneficial effects of the present invention are: 1. In the present invention, when it is necessary to cut and punch the busbar for processing the battery cell, the rolled busbar is first installed on the reel core shaft, and the upper template and the lower template for punching are respectively installed on the upper die seat and the lower die seat, and the feeding roller is driven by the stepping motor to rotate, and the feeding roller drives the busbar to be automatically loaded, and the transmission shaft and the driving gear are driven by the second motor to rotate, and the driving gear drives the driven gear to rotate, and the driven gear drives the crankshaft to rotate, and the two eccentric shafts on the crankshaft drive the connecting rod 1 and the connecting rod 2 to rotate respectively, wherein the connecting rod 1 drives the connecting column 1, the upper die seat and the upper template to move up and down, so as to punch holes on the busbar, and the connecting rod 2 drives the connecting column 2, the knife seat and the cutting knife to move up and down, so as to cut the busbar.

[0016] 2. In the present invention, the stepper motor is set to rotate intermittently periodically, and the second motor drives the crankshaft to rotate continuously, and the crankshaft drives the upper mold plate and the cutting knife to move back and forth. When the stepper motor rotates, the loading mechanism loads the material, and the upper mold base and the cutting knife are away from the bus bar surface. When the stepper motor is in the intermittent period, the second motor drives the upper mold base and the cutting knife to perform punching and cutting operations.

[0017] 3. In the present invention, the busbar is automatically loaded by the loading mechanism, and the punching and cutting operations are performed during the interval of loading by cooperating with the driving mechanism, the punching mechanism and the cutting mechanism, so that the device has both punching and cutting functions, thereby improving the level of automated processing of the busbar and the production efficiency of the battery cell assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] Figure 1It is a schematic diagram of the structure of a partial cross-section of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention; Figure 3 It is a schematic diagram of the structure of the cooperation between the workbench, the lower template and the feeding mechanism of the present invention; Figure 4 It is a schematic diagram of the structure of the driving mechanism, the punching mechanism and the cutting mechanism of the present invention; Figure 5 It is a structural schematic diagram of the punching mechanism of the present invention; Figure 6 It is a structural schematic diagram of the cutting mechanism of the present invention.

[0020] In the figure: 1, workbench; 2, feed opening; 3, protective cover; 4, bus bar; 5, frame; 101, support frame 1; 102, support frame 2; 103, reel mandrel; 104, guide roller; 105, mounting frame 1; 106, stepping motor; 107, feed roller; 108, guide plate; 201, guide column; 202, mounting table; 203, mounting frame 2; 204, motor 2; 205, transmission shaft; 20 6. Driving gear; 207. Crankshaft; 208. Eccentric shaft; 209. Driven gear; 301. Sleeve 1; 302. Connecting rod 1; 303. Connecting column 1; 304. Upper die base; 305. Upper die plate; 306. Lower die base; 307. Lower die plate; 401. Sleeve 2; 402. Connecting rod 2; 403. Connecting column 2; 404. Knife holder; 405. Knife holder; 406. Cutting knife; 407. Lower cutting block. DETAILED DESCRIPTION

[0021] The following will be combined with 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.

[0022] like Figures 1 to 6 As shown, this embodiment proposes a cutting and punching machine for processing battery cells, including a workbench 1, a frame 5, a loading mechanism, a unloading port 2, a punching mechanism, a cutting mechanism and a driving mechanism. The workbench 1 is fixedly connected to the top of the frame 5, the loading mechanism is arranged on the top of the workbench 1, and is used to transport and load the rolled bus bar 4, the unloading port 2 is fixedly installed on the top of the workbench 1, the punching mechanism is arranged on the top of the workbench 1, and is used to punch holes on the bus bar 4, the cutting mechanism is arranged on the top of the workbench 1, and is used to cut the bus bar 4, and the driving mechanism is arranged on the top of the punching mechanism and the cutting mechanism, and is used to control the punching mechanism and the cutting mechanism to lift and move.

[0023] like Figures 1 to 3 As shown, the feeding mechanism includes a support frame 101, a support frame 102, a reel core shaft 103, a guide roller 104, a mounting frame 105, a stepper motor 106, a feeding roller 107 and a guide plate 108. The top of the workbench 1 is fixedly connected to two support frames 101 and two support frames 102. The reel core shaft 103 is rotatably connected between the two support frames 101, and the guide roller 104 is rotatably connected between the two support frames 102. The top of the workbench 1 is fixedly connected to two mounting frames 105, and the stepper motor 106 is fixedly installed on one of the mounting frames 105. In this embodiment, the stepper motor 106 is configured to rotate intermittently periodically so as to perform punching and cutting operations during the intervals between loading. A feed roller 107 is rotatably connected between the two mounting frames 105. One end of the feed roller 107 is fixedly connected to the output end of the stepper motor 106. A guide plate 108 is fixedly connected between the two mounting frames 105. A gap is provided between the guide plate 108 and the feed roller 107. When the loading mechanism is working, the bus bar 4 is placed between the guide plate 108 and the feed roller 107. The feed roller 107 pushes the bus bar 4 forward while rotating, thereby loading.

[0024] like Figure 1 , Figure 2 and Figure 4 As shown, the driving mechanism includes a guide column 201, a mounting platform 202, a second mounting frame 203, a second motor 204, a transmission shaft 205, a driving gear 206, a crankshaft 207 and a driven gear 209. A plurality of guide columns 201 are fixedly mounted on the workbench 1, the mounting platform 202 is fixedly connected to the top of the plurality of guide columns 201, the top of the mounting platform 202 is fixedly connected to two second mounting frames 203, the second motor 204 is fixedly mounted on one of the second mounting frames 203, the second mounting frame 203 is rotatably connected with a transmission shaft 205, one end of the transmission shaft 205 is fixedly connected to the output end of the second motor 204, the other end of the transmission shaft 205 is fixedly connected to the driving gear 206, and the two second mounting frames 20 3 is rotatably connected with a crankshaft 207, two eccentric shafts 208 are arranged on the crankshaft 207, the two eccentric shafts 208 and the two ends of the crankshaft 207 are not on the same axis, when the crankshaft 207 rotates, the two eccentric shafts 208 rotate around the axis of the crankshaft 207, a driven gear 209 is fixedly connected to the crankshaft 207, the driving gear 206 is meshed with the driven gear 209, in this embodiment, the number of teeth of the driving gear 206 is less than that of the driven gear 209, the output torque of the driven gear 209 can be increased, and then the punching pressure and cutting force are improved, the outer cover of the driving gear 206 and the driven gear 209 is provided with a protective cover 3, the protective cover 3 can be detachably mounted on the mounting table 202, and is used to protect the safety of the operator.

[0025] like Figure 1 , Figure 4 and Figure 5 As shown, the punching mechanism includes a sleeve 301, a connecting rod 302, a connecting column 303, an upper die base 304, an upper die plate 305, a lower die base 306 and a lower die plate 307. The sleeve 301 is rotatably connected to one of the eccentric shafts 208. The top of the connecting rod 302 is fixedly connected to the sleeve 301. The bottom of the connecting rod 302 is rotatably connected to the connecting column 303, and the connecting column 303 is slidably matched with the mounting platform 202. The upper die base 304 is connected to the connecting column 306. The bottom end of 303 is fixedly connected, the upper die base 304 is slidably matched with the multiple guide pillars 201, the upper template 305 is fixedly installed at the bottom end of the upper die base 304, the top of the workbench 1 is fixedly installed with the lower die base 306, the lower template 307 is fixedly installed at the top of the lower die base 306, and the top of the lower template 307 is provided with a through groove, the bus bar 4 is slidably matched with the through groove, and the through groove not only supports the bus bar, but also plays a limiting role to ensure the accurate punching position of the bus bar 4.

[0026] like Figure 1 , Figure 4 and Figure 6 As shown, the cutting mechanism includes a sleeve 2 401, a connecting rod 2 402, a connecting column 2 403, a knife holder 404, a knife seat 405, a cutting knife 406 and a lower cutting block 407. The sleeve 2 401 is rotatably connected to another eccentric shaft 208, the top of the connecting rod 2 402 is fixedly connected to the sleeve 2 401, the bottom of the connecting rod 2 402 is rotatably connected to the connecting column 2 403, and the connecting column 2 403 is slidably matched with the mounting table 202. The top of the workbench 1 is fixedly connected to two knife holders 404, and the two knife holders 404 are provided with a sliding groove on one side wall opposite to each other. Both sides of the knife seat 405 are installed There is a slider, which slides with the slide groove, the top of the knife seat 405 is fixedly connected to the connecting rod 402, a cutting knife 406 is installed on the knife holder 404, and a lower cutting block 407 is fixedly installed between the two knife holders 404. The bus bar 4 is placed on the lower cutting block 407, and the bus bar 4 is cut by the cooperation of the cutting knife 406 and the lower cutting block 407. In this embodiment, the bottom end of the groove, the top end of the guide plate 108 and the top end of the lower cutting block 407 are on the same horizontal plane, and through the cooperation with the guide roller 104 and the feed roller 107, it is ensured that the bus bar 4 remains flat during the loading and processing process.

[0027] In this embodiment, when it is necessary to cut and punch the busbar 4 for processing the battery cell, the rolled busbar 4 is first mounted on the reel core shaft 103, and the upper template 305 and the lower template 307 for punching are respectively mounted on the upper die base 304 and the lower die base 306, and then the initial end of the busbar 4 is passed through the gap between the guide plate 108 and the feed roller 107, and the busbar is placed on the top of the lower template 307, the guide plate 108 and the lower cutting block 407, and the stepper motor 106 is started. The stepper motor 106 is set to periodically intermittently rotate, and the stepper motor 106 can drive the feed roller 107 to rotate, and the feed roller 107 drives the busbar 4 on the guide plate 108 to move forward, so as to load the material, and start the motor 204, and the motor 204 drives the motor 204 to rotate. The driving transmission shaft 205 rotates, the transmission shaft 205 drives the driving gear 206 to rotate, the driving gear 206 drives the driven gear 209 to rotate, the driven gear 209 drives the crankshaft 207 to rotate, and the two eccentric shafts 208 on the crankshaft 207 respectively drive the connecting rod 1 302 and the connecting rod 2 402 to rotate, wherein the connecting rod 1 302 drives the connecting column 1 303, the upper die seat 304 and the upper template 305 to move up and down, and the upper template 305 cooperates with the lower template 307 when descending to punch holes on the busbar 4, the connecting rod 2 402 drives the connecting column 2 403, the knife seat 405 and the cutting knife 406 to move up and down, and the cutting knife 406 cooperates with the lower cutting block 407 when descending to cut the busbar 4, and the busbar 4 is discharged from the unloading port 2 after cutting.

[0028] It should be noted that since the motor 204 drives the crankshaft 207 to rotate continuously, the crankshaft 207 drives the upper template 305 and the cutting knife 406 to move up and down reciprocatingly, therefore, in this embodiment, by setting the intermittent rotation cycle of the stepper motor 106 and the rotation speed of the motor 204, during the intermittent period of feeding the busbar 4, it is ensured that the upper template 305 and the cutting knife 406 complete the punching and cutting operations and stay away from the surface of the busbar 4, thereby avoiding interference with the upper template 305 and the cutting knife 406 during the feeding process of the busbar 4. In this embodiment, through the cooperation of the feeding mechanism, the driving mechanism, the punching mechanism and the cutting mechanism, the punching and cutting operations can be performed synchronously during the intermittent period of feeding, so that the device has both punching and cutting functions, thereby improving the production efficiency of the battery cell assembly.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cutting and punching machine for processing battery cells, comprising a workbench (1) and a frame (5), wherein the workbench (1) is fixedly connected to the top of the frame (5), and is characterized in that: Also includes: A loading mechanism, the loading mechanism being arranged on the top of the workbench (1) and being used for conveying and loading the rolled busbar (4); A material discharge port (2), the material discharge port (2) being fixedly mounted on the top of the workbench (1); A punching mechanism, the punching mechanism being arranged on the top of the workbench (1) and being used for punching holes on the busbar (4); A cutting mechanism, the cutting mechanism being arranged on the top of the workbench (1) and being used for cutting the busbar (4); A driving mechanism is arranged on the top of the punching mechanism and the cutting mechanism, and is used to control the punching mechanism and the cutting mechanism to move up and down.

2. A cutting and punching machine for processing a battery cell according to claim 1, characterized in that: The feeding mechanism comprises: Support frame one (101) and support frame two (102), the top of the workbench (1) being fixedly connected with two support frames one (101) and two support frames two (102); A reel core shaft (103), the reel core shaft (103) being rotatably connected between the two support frames (101); A guide roller (104), the guide roller (104) being rotatably connected between the two support frames (102); Mounting frame one (105), the top end of the workbench (1) being fixedly connected to two mounting frames one (105); A stepper motor (106), the stepper motor (106) being fixedly mounted on one of the mounting frames (105); A feeding roller (107), the feeding roller (107) being rotatably connected between the two mounting frames (105), one end of the feeding roller (107) being fixedly connected to the output end of the stepping motor (106); A material guide plate (108) is fixedly connected between the two mounting frames (105).

3. A cutting and punching machine for processing a battery cell according to claim 2, characterized in that: The driving mechanism comprises: Guide pillars (201), a plurality of guide pillars (201) being fixedly mounted on the workbench (1); A mounting platform (202), the mounting platform (202) being fixedly connected to top ends of the plurality of guide pillars (201); A second mounting frame (203), the top of the mounting platform (202) being fixedly connected to two second mounting frames (203); Motor 2 (204), wherein the motor 2 (204) is fixedly mounted on one of the mounting frames 2 (203), a transmission shaft (205) is rotatably connected to the mounting frame 2 (203), and one end of the transmission shaft (205) is fixedly connected to the output end of the motor 2 (204); A driving gear (206), the other end of the transmission shaft (205) being fixedly connected to the driving gear (206); A crankshaft (207), the crankshaft (207) being rotatably connected between the two second mounting frames (203), and the crankshaft (207) being provided with two eccentric shafts (208); A driven gear (209) is fixedly connected to the crankshaft (207), and the driving gear (206) is meshed with the driven gear (209).

4. A cutting and punching machine for processing a battery cell according to claim 3, characterized in that: The punching mechanism comprises: A sleeve one (301), the sleeve one (301) being rotatably connected to one of the eccentric shafts (208); A connecting rod (302), the top end of which is fixedly connected to the sleeve (301); A connecting column (303), wherein the bottom end of the connecting rod (302) is rotatably connected to the connecting column (303), and the connecting column (303) is slidably matched with the mounting platform (202); An upper die seat (304), the upper die seat (304) being fixedly connected to the bottom end of the first connecting column (303), and the plurality of guide columns (201) all pass through the upper die seat (304) and are slidably matched with the upper die seat (304); An upper mold plate (305), the upper mold plate (305) being fixedly mounted on the bottom end of the upper mold base (304); A lower die base (306), the lower die base (306) being fixedly mounted on the top of the workbench (1); A lower mold plate (307), wherein the lower mold plate (307) is fixedly mounted on the top of the lower mold base (306).

5. A cutting and punching machine for processing a battery cell according to claim 4, characterized in that: The cutting mechanism comprises: A second sleeve (401), the second sleeve (401) being rotatably connected to the other eccentric shaft (208); A second connecting rod (402), the top end of the second connecting rod (402) being fixedly connected to the second sleeve (401); A second connecting column (403), the bottom end of the second connecting rod (402) is rotatably connected to the second connecting column (403), and the second connecting column (403) is slidably matched with the mounting platform (202); Tool holders (404), two of which are fixedly connected to the top of the workbench (1); A knife seat (405), wherein the two knife holders (404) are slidably connected with the knife seat (405), and the top end of the knife seat (405) is fixedly connected to the second connecting rod (402); A cutting knife (406), the cutting knife (406) being mounted on the knife holder (404); A lower cutting block (407) is fixedly mounted between the two tool holders (404).

6. A cutting and punching machine for processing a battery cell according to claim 5, characterized in that: A gap is provided between the material guide plate (108) and the material feeding roller (107).

7. A cutting and punching machine for processing a battery cell according to claim 6, characterized in that: The outer covers of the driving gear (206) and the driven gear (209) are provided with protective covers (3), and the protective covers (3) are detachably mounted on the mounting platform (202).

8. A cutting and punching machine for processing a battery cell according to claim 7, characterized in that: The two eccentric shafts (208) and the two ends of the crankshaft (207) are not on the same axis.

9. A cutting and punching machine for processing a battery cell according to claim 8, characterized in that: A through slot is provided at the top of the lower template (307), and the bus bar (4) is slidably engaged with the through slot.

10. A cutting and punching machine for processing a battery cell according to claim 9, characterized in that: The bottom end of the through slot, the top end of the guide plate (108) and the top end of the lower cutting block (407) are on the same horizontal plane.

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