An automated device for perforating battery cases for through-wall welding

Abstract

The present invention relates to the technical field of battery case punching, and particularly to an automated device for through-wall welding punching of battery cases, including a PP chain conveyor line, a three-axis manipulator, a punching device, and a deburring device. The PP chain conveyor line transports the battery cases and positions them after transportation. The punching device punches the partition walls of the battery cases, and the deburring device removes the burrs on the partition walls of the battery cases. A bracket is installed at the movable end of the three-axis manipulator, and the punching device and the deburring device are installed at both ends of the bracket. The PP chain conveyor line transports the battery cases to the operation station, fixes the position of the battery cases after transportation, and the reverse placement detection device works to quickly detect whether the battery cases are placed in the reverse direction. The three-axis manipulator drives the punching device to punch the partition walls of the battery cases, and the deburring device removes the burrs generated after punching. After the punching and deburring operations are completed, the PP chain conveyor line drives the battery cases to leave the operation station.

Description

Technical Field

[0001] The present invention relates to the technical field of battery case punching, and particularly relates to an automated device for through-wall welding punching of battery cases. Background Art

[0002] In the production of automotive batteries, holes need to be punched in the battery cases for subsequent use in through-wall welding of busbars. In the existing technology, a set of molds is used, and manual operation is carried out for punching. After punching, a handheld natural gas torch is also used to heat-treat the burrs after punching to melt them.

[0003] In the existing processing method, manual punching and deburring operations are carried out, which have problems such as low automation and low processing efficiency. At the same time, when manually placing the battery cases, there are also problems such as large punching size errors and low processing accuracy.

[0004] In view of the above problems, an automated device for through-wall welding punching of battery cases is designed. Summary of the Invention

[0005] The present invention provides an automated device for through-wall welding punching of battery cases in view of the deficiencies of the prior art.

[0006] The present invention solves the above technical problems through the following technical means:

[0007] An automated device for through-wall welding punching of battery cases includes a punching device for punching the partition wall of the battery case;

[0008] The punching device includes a cylinder support and a first plate. The first plate is installed at the lower end of the bracket. A die body is provided on the first plate. A first notch and a hole are formed in the die body. A punch for punching the partition wall of the battery case is provided inside the first notch. The punch is slidably engaged with the inner bottom wall of the first notch and penetrates the hole. A second notch is provided on the punch;

[0009] The cylinder support is installed at the upper end of the bracket. A first cylinder is hingedly installed on the cylinder support. A Y-shaped joint is provided at the output end of the first cylinder. A connecting rod for driving the punch to reciprocate is hingedly installed on the Y-shaped joint. A block is provided at the movable end of the connecting rod. The block is inserted into the first notch and cooperates with the second notch. A small shaft is provided on the connecting rod and is rotationally engaged with the first notch through the small shaft.

[0010] As an improvement of the above technical solution, a positioning groove for accommodating the partition wall of the battery case is formed in the die body. The positioning groove divides the die body into an A area and a B area. The first notch is located in the A area and communicates with the positioning groove. The hole is located in the B area and communicates with the positioning groove.

[0011] As an improvement to the above technical solution, the punching device further includes a compactor for positioning the partition wall of the battery case, and the compactor is located at the position of the positioning groove on the outer wall of the mold body;

[0012] The compactor includes a pressing block connected to the outer wall of the mold body. A pressing rod is movably inserted into the pressing block. A spring is sleeved on a section of the pressing rod below the pressing block, and a nut is in threaded cooperation with a section of the pressing rod above the pressing block.

[0013] As an improvement to the above technical solution, it further includes a PP chain conveyor line, a three-axis manipulator, and a deburring device. The PP chain conveyor line conveys the battery case and positions it after the conveyance. The deburring device removes the burrs on the partition wall of the battery case;

[0014] A bracket is installed at the movable end of the three-axis manipulator. The punching device and the deburring device are installed at both ends of the bracket, and the three-axis manipulator drives the punching device and the deburring device to move synchronously.

[0015] As an improvement to the above technical solution, the deburring device includes an air gun seat connected to the bracket. A heater is provided on the air gun seat. A hot air nozzle is provided on the heater. The hot air nozzle is provided on one side close to the punching device and is at the same horizontal height as the punch.

[0016] As an improvement to the above technical solution, it further includes a waste collection device for collecting waste;

[0017] The waste collection device includes a waste box with an opening on the side wall. The opening end of the side wall of the waste box is covered with a hole, and a pressing rod is provided at the lower end of the waste box.

[0018] As an improvement to the above technical solution, a receiving groove is opened on the mold body. The receiving groove communicates with the hole. A blocking block is provided on the waste box. The blocking block is inserted into the receiving groove and seals the lower end of the receiving groove. The receiving groove and the opening end of the side wall of the waste box face each other to form a complete waste cavity.

[0019] The waste box is hinged to the side wall of the mold body. The waste collection device further includes a second plate body. The second plate body is connected to the first plate body and the bracket. A spring piece is connected to the second plate body, and the movable end of the spring piece abuts against the outer wall of the waste box.

[0020] As an improvement to the above technical solution, it further includes a reverse placement detection device for detecting whether the battery case is placed in the reverse direction;

[0021] The reverse placement detection device includes a mounting seat. A second cylinder is provided on the mounting seat. The output end of the second cylinder is connected with a core column, and a column head is sleeved on the core column.

[0022] Advantages of the present invention:

[0023] In an automated device for punching through the wall of a battery case, the PP chain conveyor transports the battery case to the operation station. After the transportation is in place, the position of the battery case is fixed. The reverse placement detection device works to quickly detect whether the battery case is placed in the reverse direction. The three-axis manipulator drives the punching device to punch the partition wall of the battery case, and the deburring device removes the burrs generated after punching. After the punching and deburring operations are completed, the PP chain conveyor drives the battery case to leave the operation station.

[0024] Through the setting of the PP chain conveyor, precise transportation of the battery case is achieved, avoiding positioning errors. The setting of the punching device and the deburring device realizes mechanical automation, reduces the use of labor, and at the same time improves the accuracy of the punching operation and the deburring operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic structural diagram of an automated device for punching through the wall of a battery case according to an embodiment of the present application;

[0026] Figure 2 It is a perspective view of an automated device for punching through the wall of a battery case according to an embodiment of the present application;

[0027] Figure 3 It is Figure 2 a schematic structural diagram of the punching device and the deburring device in

[0028] Figure 4 It is Figure 3 a schematic sectional view of the punching device in

[0029] Figure 5 It is Figure 4 a schematic diagram of the state of the punching device when punching in

[0030] Figure 6 It is Figure 3 a schematic structural diagram of the compressor in

[0031] Figure 7 It is a schematic structural diagram of the waste box;

[0032] Figure 8 It is Figure 1 a schematic structural diagram of the reverse placement detection device in

[0033] Reference signs: PP chain plate line 10; three-axis manipulator 20; bracket 21; punching device 30; cylinder support 31; first cylinder 32; Y-shaped joint 33; connecting rod 34; small shaft 341; block 342; first plate body 35; die body 36; positioning groove 361; first notch 362; hole 363; receiving groove 364; punch 37; second notch 371; positioning pin 38; compactor 39; compaction block 391; pressure rod 392; nut 393; spring 394; deburring device 40; air gun seat 41; heater 42; hot air nozzle 43; reverse placement detection device 50; mounting seat 51; second cylinder 52; core column 53; column head 54; waste collection device 60; second plate body 61; spring piece 62; waste box 63; blocking block 631; pressure rod 64. Detailed implementation manners

[0034] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0035] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0036] Embodiment 1

[0037] As Figure 1 、 2 shown, an automated device for punching through the wall of a battery case in this embodiment includes a PP chain plate line 10, a three-axis manipulator 20, a punching device 30 and a deburring device 40. A clamping and blocking assembly is provided on the PP chain plate line 10 to position the battery case after it is transported in place. The punching device 30 punches through the partition wall of the battery case, and the deburring device 40 removes the burrs on the partition wall of the battery case;

[0038] As Figure 3 shown, to achieve the synchronous movement of the punching device 30 and the deburring device 40, a bracket 21 is installed at the movable end of the three-axis manipulator 20, and the punching device 30 and the deburring device 40 are installed at both ends of the bracket 21.

[0039] In the control system of this device, according to the specifications and models of different batteries, corresponding positioning points are set. The punching adaptation range is wide. The PP chain plate line 10 transports the battery case to the operation station. After the transportation is in place, the position of the battery case is fixed. The three-axis manipulator 20 drives the punching device 30 to punch the partition wall of the battery case. The deburring device 40 removes the burrs generated after punching. After the punching and deburring operations are completed, the PP chain plate line 10 drives the battery case to leave the operation station. Through the setting of the PP chain plate line 10, the precise transportation of the battery case is realized, avoiding positioning errors. The settings of the punching device 30 and the deburring device 40 realize mechanical automation, reduce the use of labor, and improve the precision of the punching operation and the deburring operation at the same time.

[0040] As Figure 3 , 4 shown, the punching device 30 includes a cylinder support 31 and a first plate body 35. The first plate body 35 is installed at the lower end of the bracket 21. A die body 36 is arranged on the first plate body 35. A positioning pin 38 is arranged at the lower end of the die body 36. A first notch 362 and a hole 363 are formed on the die body 36. An impact punch 37 for punching the partition wall of the battery case is arranged inside the first notch 362. The impact punch 37 is slidably matched with the inner bottom wall of the first notch 362 and penetrates through the hole 363. A second notch 371 is arranged on the impact punch 37.

[0041] The cylinder support 31 is installed at the upper end of the bracket 21. A first cylinder 32 is hingedly installed on the cylinder support 31. A Y-shaped joint 33 is arranged at the output end of the first cylinder 32. A connecting rod 34 for driving the impact punch 37 to reciprocate is hingedly installed on the Y-shaped joint 33. A block 342 is arranged at the movable end of the connecting rod 34. The block 342 is inserted into the inside of the first notch 362 and cooperates with the second notch 371. A small shaft 341 is arranged on the connecting rod 34 and is rotationally matched with the first notch 362 through the small shaft 341.

[0042] In the punching device 30, when the overall length of the first cylinder 32 extends, it drives the connecting rod 34 to rotate counterclockwise around the small shaft 341. The block 342 cooperates with the second notch 371 to drive the impact punch 37 to move to the right until it is inserted into the inside of the hole 363, completing the punching operation on the partition wall of the battery case, as Figure 5 shown; when the overall length of the first cylinder 32 shortens, it drives the connecting rod 34 to rotate clockwise around the small shaft 341. The block 342 cooperates with the second notch 371 to drive the impact punch 37 to move to the left and disengage from the battery case.

[0043] By extending or shortening the overall length of the first cylinder 32, the connecting rod 34 is driven to rotate, driving the impact punch 37 to reciprocate in the left and right directions, realizing the punching operation on the partition wall of the battery case. Through the lever structure in the punching device 30, effective punching of the battery case is completed.

[0044] As Figure 4As shown in the figure, to improve the stability during the operation of the battery case, a positioning groove 361 for accommodating the partition wall of the battery case is provided on the die body 36. The operation point of the battery case is placed inside the die body 36. The positioning groove 361 divides the die body 36 into area A and area B. The first notch 362 is located in area A and communicates with the positioning groove 361. The hole 363 is located in area B and communicates with the positioning groove 361.

[0045] As Figure 6 shown in the figure, to improve the stability during the operation of the battery case, the punching device 30 further includes a compactor 39 for positioning the partition wall of the battery case. The compactor 39 is located at the position of the positioning groove 361 on the outer wall of the die body 36.

[0046] The compactor 39 includes a pressing block 391 connected to the outer wall of the die body 36. A pressure rod 392 is movably inserted into the pressing block 391. A spring 394 is sleeved on a section of the pressure rod 392 below the pressing block 391. A nut 393 is in threaded fit with a section of the pressure rod 392 above the pressing block 391. When operating on the battery case, the lower end of the pressure rod 392 abuts against the upper end of the partition wall of the battery case. At this time, the spring 394 is compressed. Under the action of the reaction force of the spring 394, the stability of the position of the battery case is improved.

[0047] As Figure 2 、 3 shown in the figure, the deburring device 40 includes a air gun seat 41 connected to the bracket 21. A heater 42 is provided on the air gun seat 41. A hot air nozzle 43 is provided on the heater 42. The hot air nozzle 43 is arranged on one side close to the punching device 30 and is at the same horizontal height as the punch 37.

[0048] After the punching operation is completed, the heater 42 is heated, and hot air is ejected from the hot air nozzle 43 to heat and melt the burrs. The deburring device 40 removes the burrs generated after the punching operation.

[0049] As Figure 3 、 4 shown in Figures 6 and 7, it further includes a waste collection device 60 for collecting waste. The waste collection device 60 includes a waste box 63 with an opening on the side wall. The opening end of the side wall of the waste box 63 covers the hole 363. A pressure rod 64 with a positioning function is provided at the lower end of the waste box 63.

[0050] A receiving groove 364 is provided on the die body 36. The receiving groove 364 communicates with the hole 363. A blocking block 631 is provided on the waste box 63. The blocking block 631 is inserted into the receiving groove 364 and blocks the lower end of the receiving groove 364. The receiving groove 364 and the opening end of the side wall of the waste box 63 face each other to form a complete waste cavity.

[0051] When punching the battery case, the punch 37 penetrates the hole 363, pushes the waste material into the interior of the waste chamber, and completes the collection of the waste material. The operation is simple, the energy consumption is reduced, and the waste collection device 60 is provided to complete the automatic collection of the waste generated by punching.

[0052] As Figure 4 shown, the waste box 63 is hinged to the side wall of the die body 36, so that the lower end of the waste box 63 can be opened, which is convenient for the operation of taking out the waste material inside the waste chamber. The waste collection device 60 further includes a second plate body 61. The second plate body 61 is connected to the first plate body 35 and the bracket 21. A spring piece 62 is connected to the second plate body 61. The movable end of the spring piece 62 abuts against the outer wall of the waste box 63 to fix the position of the waste box 63 and improve the stability of the position of the waste box 63.

[0053] As Figure 1 、 8 shown, in order to avoid the problem of reverse punching of the battery case, anti-fooling treatment is carried out on the battery case, and an anti-reverse detection device 50 for detecting whether the battery case is placed in the reverse direction is also included; the anti-reverse detection device 50 includes a mounting seat 51. A second cylinder 52 is provided on the mounting seat 51. A solenoid valve and a pressure regulating valve are provided on the second cylinder 52. The output end of the second cylinder 52 is connected to a core column 53, and a column head 54 is sleeved on the core column 53.

[0054] In the anti-reverse detection device 50, the overall length of the second cylinder 52 extends, driving the column head 54 to contact the battery case. The automotive battery needs to be punched five holes, two on one side and three on the other side. One side of the two bottom edges of the battery case has a depression, and the other side has no depression, which has a fixed corresponding relationship with the three-hole side and the two-hole side. By the different extension distances of the second cylinder 52, it is distinguished whether there is a depression at the bottom of the battery case to realize whether the punching direction of the battery case is placed in the reverse direction.

[0055] In this automatic device for through-wall welding punching of battery cases, the PP chain conveyor 10 transports the battery cases to be punched to the operating station. When the battery case reaches the specified position, the battery case is fixed, and the anti-reverse detection device 50 works to quickly detect whether the battery case is placed in the reverse direction. If it is placed in the reverse direction, the program will stop the machine from running and issue an alarm. Otherwise, the next punching step will be carried out. The three-axis manipulator 20 drives the punching device 30 and the deburring device 40 to move along the path pre-designed by the program. The punching device 30 performs punching operations, and at this time, the deburring device 40 performs deburring operations. After the operations are completed, the PP chain conveyor 10 starts, takes out the punched battery cases, and at the same time brings in the battery cases to be punched.

[0056] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0057] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automated device for perforating the wall of a battery case, characterized in that, It includes a punching device (30) for punching holes in the partition wall of the battery case and a waste collection device (60) for collecting waste; The punching device (30) includes a cylinder support (31) and a first plate body (35). The first plate body (35) is installed at the lower end of the bracket (21). A die body (36) is provided on the first plate body (35). A first notch (362) and a hole (363) are formed in the die body (36). A punch (37) for punching holes in the partition wall of the battery case is arranged inside the first notch (362). The punch (37) is slidably matched with the inner bottom wall of the first notch (362) and penetrates through the hole (363). A second notch (371) is provided on the punch (37); The cylinder support (31) is installed at the upper end of the bracket (21). A first cylinder (32) is hingedly installed on the cylinder support (31). A Y-shaped joint (33) is provided at the output end of the first cylinder (32). A connecting rod (34) for driving the punch (37) to reciprocate is hingedly installed on the Y-shaped joint (33). A block (342) is provided at the movable end of the connecting rod (34). The block (342) is inserted into the inside of the first notch (362) and cooperates with the second notch (371). A small shaft (341) is provided on the connecting rod (34) and is rotationally matched with the first notch (362) through the small shaft (341); A positioning groove (361) for accommodating the partition wall of the battery case is formed in the die body (36). The positioning groove (361) divides the die body (36) into area A and area B. The first notch (362) is located in area A and communicates with the positioning groove (361). The hole (363) is located in area B and communicates with the positioning groove (361); The punching device (30) further includes a compactor (39) for positioning the partition wall of the battery case. The compactor (39) is located at the position of the positioning groove (361) on the outer wall of the die body (36); The waste collection device (60) includes a waste box (63) with an opening on the side wall. The opening end of the side wall of the waste box (63) covers the hole (363). A pressure rod (64) is provided at the lower end of the waste box (63); An accommodating groove (364) is formed in the die body (36). The accommodating groove (364) communicates with the hole (363). A blocking block (631) is provided on the waste box (63). The blocking block (631) is inserted into the accommodating groove (364) and blocks the lower end of the accommodating groove (364). The accommodating groove (364) and the opening end of the side wall of the waste box (63) face each other to form a complete waste cavity; The waste box (63) is hinged to the side wall of the die body (36). The waste collection device (60) further includes a second plate body (61). The second plate body (61) is connected to the first plate body (35) and the bracket (21). A spring piece (62) is connected to the second plate body (61). The movable end of the spring piece (62) abuts against the outer wall of the waste box (63).

2. The automated equipment for battery case through-wall welding hole punching according to claim 1, characterized in that, The compactor (39) includes a pressing block (391) connected to the outer wall of the die body (36). A pressure rod (392) is movably inserted into the pressing block (391). A spring (394) is sleeved on a section of the pressure rod (392) below the pressing block (391). A nut (393) is in threaded fit with a section of the pressure rod (392) above the pressing block (391).

3. An automated device for piercing holes in battery cases for through-wall welding, as claimed in claim 1, wherein, It further includes a PP chain conveyor line (10), a three-axis manipulator (20) and a deburring device (40). The PP chain conveyor line (10) conveys the battery case and positions it after the conveyance. The deburring device (40) removes the burrs on the partition wall of the battery case; A bracket (21) is installed at the movable end of the three-axis manipulator (20). The drilling device (30) and the deburring device (40) are installed at both ends of the bracket (21). The three-axis manipulator (20) drives the drilling device (30) and the deburring device (40) to move synchronously.

4. An automated device for punching in the through-wall welding of a battery case according to claim 3, characterized in that, The deburring device (40) includes an air gun seat (41) connected to the bracket (21). A heater (42) is arranged on the air gun seat (41). A hot air nozzle (43) is arranged on the heater (42). The hot air nozzle (43) is arranged on one side close to the drilling device (30) and is at the same horizontal height as the punch (37).

5. An automated device for punching in the through-wall welding of a battery case according to claim 1, characterized in that, It further includes a reverse detection device (50) for detecting whether the battery case is placed in the reverse direction; The reverse detection device (50) includes a mounting seat (51). A second cylinder (52) is arranged on the mounting seat (51). The output end of the second cylinder (52) is connected to a core column (53). A column head (54) is sleeved on the core column (53).

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