Positioning tool for ultrasonic welding of tabs

Abstract

The utility model relates to the technical field of pole lug welding, in particular to a positioning tool for pole lug ultrasonic welding, which comprises a base, a group of side plates are fixedly arranged on the base, a placing plate is fixedly arranged on the side plates, a plurality of tooth holes are arranged on the placing plate, welding teeth are inserted in the tooth holes, and a tooth plate is arranged at the bottoms of the welding teeth together. Lifting grooves are formed in the opposite faces of the side plates, lifting blocks are arranged in the lifting grooves in a sliding mode, the opposite faces of the lifting blocks are fixedly connected with the end wall of the toothed plate, lifting assemblies are arranged in the lifting grooves, and the lifting assemblies are used for enabling the lifting blocks to slide along the lifting grooves. The lithium ion battery has the advantages that the situation that the tabs adhere to the welding seat is reduced, and the tabs are not prone to being pulled and broken.

Description

Technical Field

[0001] The utility model relates to the technical field of pole tab welding, in particular to a positioning tool for pole tab ultrasonic welding. Background Art

[0002] During the production process of soft-pack battery modules, each battery cell needs to be welded with tabs. Currently, ultrasonic welding technology is mainly used for tab welding.

[0003] In the related art, a Chinese patent with authorization announcement number CN211072230U provides a tab assembly and an ultrasonic welding device thereof, which includes a welding seat, the welding seat includes a first mounting seat, a pressure conversion part, a pressure receiving part and a first welding part, the top of the first mounting seat is fixedly connected to the bottom of the pressure conversion part, the bottom of the pressure conversion part is fixedly connected to the bottom of the pressure receiving part, the side wall of the pressure receiving part is fixedly connected to the side wall of the first welding part, and a plurality of first welding teeth are arranged at intervals and evenly arranged. When welding the tab, firstly, the tab assembly is made to fit with the top of the first welding part, then the first welding part of the welding head is brought close to make the welding head fit with the top surface of the tab assembly, and finally the tab is welded and fixed under the action of ultrasonic high-frequency vibration.

[0004] In the process of implementing the present application, the inventors found that there are at least the following problems in this technology: when the welding head and the welding seat clamp the pole lug for welding, the first welding tooth on the welding seat will bite into the pole lug to a certain depth, causing the pole lug to stick to the welding seat, and when the pole lug is removed, the pole lug will be pulled and broken. Utility Model Content

[0005] In order to reduce the situation where the tab sticks to the welding seat and prevent the tab from being easily pulled and broken, the present application provides a positioning tool for ultrasonic welding of the tab.

[0006] The present application provides a positioning tool for ultrasonic welding of tabs using the following technical solution:

[0007] A positioning tool for ultrasonic welding of a tab comprises a base, a group of side panels are fixedly arranged on the base, a placement plate is fixedly arranged on the side panels, a plurality of tooth holes are provided on the placement plate, welding teeth are inserted into the tooth holes, a tooth plate is commonly provided at the bottom of the welding teeth, lifting grooves are provided on opposite surfaces of the side panels, a lifting block is slidably arranged in the lifting groove, the opposite surface of the lifting block is fixedly connected to the end wall of the tooth plate, a lifting assembly is provided in the lifting groove, and the lifting assembly is used to make the lifting block slide along the lifting groove.

[0008] By adopting the above technical solution, when the electrode plate is welded, the lifting assembly moves the lifting block to the top of the lifting block to fit the inner wall of the lifting groove. At this time, the welding tooth is inserted in the tooth hole, and the top of the welding tooth protrudes from the top of the placement plate. When the electrode plate is welded, the lifting assembly drives the lifting block to move down along the lifting groove, so that the top of the welding tooth retracts below the top of the placement plate, and then the welding tooth is separated from the electrode ear, reducing the situation where the electrode ear sticks to the welding seat. When the electrode ear is removed, it is not easy for the welding tooth to pull the electrode ear and cause the electrode ear to break.

[0009] Preferably, the lifting assembly comprises an eccentric wheel and a lifting rod, the eccentric wheel is rotatably arranged in the lifting slot, one end of the lifting rod is rotatably connected to the eccentric wheel, and the other end of the lifting rod is slidably connected to the lifting block.

[0010] By adopting the above technical solution, the eccentric wheel rotates to move the lifting rod in the height direction, and the lifting rod moves in the height direction to push the lifting block to move along the lifting slot.

[0011] Preferably, a connecting slot is provided at the bottom end of the lifting block, a connecting slider is slidably arranged in the connecting slot, and the connecting slider is fixedly connected to the end of the lifting rod away from the eccentric wheel.

[0012] By adopting the above technical solution, when the eccentric wheel drives the lifting rod to move in the height direction, the top end of the lifting rod drives the connecting slider to move in the height direction, and the connecting slider pushes the lifting block to move along the lifting groove. At the same time, the eccentric wheel drives the lifting rod to move in the horizontal direction, and the horizontal movement of the lifting rod drives the connecting slider to move horizontally along the connecting slide groove.

[0013] Preferably, a group of limiting slide grooves are provided on the inner wall of the connecting slide groove, the limiting slide grooves are arranged opposite to each other, limiting sliders are slidably arranged in the limiting slide grooves, and the opposite surfaces of the limiting sliders are fixedly connected to the connecting slider.

[0014] By adopting the above technical solution, a step is formed between the limiting slider and the connecting slider, so that the connecting slider is clamped in the connecting slide groove through the limiting slider, thereby reducing the separation of the lifting block and the lifting rod.

[0015] Preferably, a drive shaft is fixedly arranged on the opposite surface of the eccentric wheel, and a synchronization shaft is fixedly arranged on the opposite surface of the drive shaft.

[0016] By adopting the above technical solution, the synchronous shaft is rotated, the synchronous shaft drives the driving shaft to rotate, and the driving shaft drives the eccentric wheel to rotate, so that the synchronous rotation of the eccentric wheel is achieved.

[0017] Preferably, a driving seat is fixedly arranged between the side plates, a driving motor is fixedly arranged on the driving seat, and the driving motor is used for driving the synchronous shaft to rotate.

[0018] By adopting the above technical solution, the driving motor rotates to drive the synchronous shaft to rotate, thereby reducing the need for manual rotation of the synchronous shaft.

[0019] Preferably, a synchronous gear is sleeved on the synchronous shaft, the synchronous gear is fixedly connected to the synchronous shaft, a driving gear is fixedly arranged on the output shaft of the driving motor, and the driving gear and the synchronous gear are meshed with each other.

[0020] By adopting the above technical solution, the driving motor rotates to drive the driving gear, the driving gear rotates to drive the synchronous gear, and the synchronous gear rotates to drive the synchronous shaft, so that the driving motor drives the synchronous shaft to rotate.

[0021] Preferably, a cover shell is detachably provided on the driving seat, the cover shell covers the driving motor, the driving gear and the synchronous gear, and the synchronous shaft passes through the side wall of the cover shell.

[0022] By adopting the above technical solution, the cover housing covers the driving motor, the driving gear and the synchronous gear, thereby reducing the possibility of debris being stuck between the driving gear and the synchronous gear.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. By setting the base, side plate, placement plate, tooth hole, welding tooth, tooth plate, lifting slot, lifting block and lifting assembly, it is not easy for the welding tooth to pull the tab and cause the tab to break;

[0025] 2. By setting the eccentric wheel and the lifting rod, the lifting block moves along the lifting groove;

[0026] 3. By setting a driving motor, a synchronous gear and a driving gear, the effect of the driving motor driving the eccentric wheel to rotate synchronously is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a cross-sectional view of a positioning tool for ultrasonic welding of a tab in an embodiment of the present application.

[0028] Figure 2 yes Figure 1 Enlarged view of part A.

[0029] Figure 3 yes Figure 1 Magnified view of part B.

[0030] Explanation of the accompanying drawings: 1. Base; 11. Side panel; 2. Placement plate; 21. Tooth hole; 3. Tooth plate; 31. Welding tooth; 4. Lifting block; 41. Lifting slot; 5. Lifting assembly; 51. Eccentric wheel; 52. Lifting rod; 6. Connecting slider; 61. Connecting slide slot; 7. Limiting slider; 71. Limiting slide slot; 8. Driving seat; 81. Driving motor; 811. Driving gear; 82. Synchronous shaft; 821. Synchronous gear; 83. Driving shaft; 9. Cover. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-3 This application is described in further detail.

[0032] The present application embodiment discloses a positioning tool for ultrasonic welding of a tab. Figure 1 , including a base 1, on which a group of side panels 11 are symmetrically mounted, and the side panels 11 are arranged opposite to each other. The bottom wall of the side panel 11 is welded to the top wall of the base 1, and a placement plate 2 is installed on the top of the side panel 11, and the bottom wall of the placement plate 2 and the top of the side panel 11 are welded to each other. A plurality of tooth holes 21 are provided on the placement plate 2, and welding teeth 31 are inserted into the tooth holes 21, and a tooth plate 3 is installed at the bottom of the welding teeth 31. A lifting groove 41 is provided on the opposite surface of the side panel 11, and a lifting block 4 is slidingly arranged in the lifting groove 41, and the opposite surface of the lifting block 4 is welded to the end wall of the tooth plate 3. A lifting assembly 5 is installed in the lifting groove 41, and the lifting assembly 5 is used to make the lifting block 4 slide along the lifting groove 41. When welding the electrode plate, the lifting assembly 5 moves the lifting block 4 to the top of the lifting block 4 and fits the inner wall of the lifting groove 41, at which time the welding teeth 31 are inserted into the tooth holes 21, and the top of the welding teeth 31 protrudes from the top of the placement plate 2. When the electrode plate welding is completed, the lifting assembly 5 drives the lifting block 4 to move down along the lifting slot 41, so that the top of the welding tooth 31 is retracted below the top of the placement plate 2, and then the welding tooth 31 is separated from the electrode tab, reducing the situation that the electrode tab sticks to the welding seat. When the electrode tab is removed, it is not easy for the welding tooth 31 to pull the electrode tab and cause the electrode tab to break.

[0033] In order to move the lifting block 4 along the lifting groove 41, refer to Figure 1 and Figure 2The lifting assembly 5 includes an eccentric wheel 51 and a lifting rod 52. The eccentric wheel 51 is rotatably connected to the inner side wall of the lifting groove 41 through a rotating shaft, and the eccentric wheel 51 is arranged opposite to the side away from the rotating shaft. The side wall of the lifting rod 52 near the bottom is rotatably connected to the side away from the rotating shaft of the eccentric wheel 51, and the other end of the lifting rod 52 is installed with a connecting slide 61. A connecting slide 61 is provided at the bottom end of the lifting block 4, and the connecting slider 6 slides in the connecting slide 61. A group of limiting slides 71 are provided on the inner wall of the connecting slide 61, and the limiting slides 71 are arranged opposite to each other. A limiting slide 7 is slidably arranged in the limiting slide 71, and the opposite surface of the limiting slide 7 is welded to the side wall of the connecting slide 6. A step is formed between the limiting slide 7 and the connecting slide 6, so that the connecting slide 6 is clamped in the connecting slide 61 through the limiting slide 7, thereby reducing the separation of the lifting block 4 and the lifting rod 52. When the eccentric wheel 51 rotates, the lifting rod 52 is moved in the height direction on the one hand, and in the horizontal direction on the other hand. The lifting rod 52 moves in the height direction and drives the connecting slide block 6 to move in the height direction, and the connecting slide block 6 pushes the lifting block 4 to move along the lifting groove 41. The lifting rod 52 moves in the horizontal direction, and the horizontal movement of the lifting rod 52 drives the connecting slide block 6 to move horizontally along the connecting slide groove 61.

[0034] In order to make the eccentric wheel 51 rotate synchronously, refer to Figure 1 and Figure 3 , a driving shaft 83 is installed on the opposite surface of the eccentric wheel 51, and a synchronous shaft 82 is installed on the opposite surface of the driving shaft 83. A synchronous gear 821 is sleeved on the synchronous shaft 82, and the synchronous gear 821 and the synchronous shaft 82 are welded to each other. A driving seat 8 is installed between the side plates 11, and the driving seat 8 is welded to the bottom plate. A driving motor 81 is installed on the top of the driving seat 8, and a driving gear 811 is installed on the output shaft of the driving motor 81, and the driving gear 811 and the synchronous gear 821 are meshed with each other. The rotation of the driving motor 81 drives the driving gear 811 to rotate, and the rotation of the driving gear 811 drives the synchronous gear 821 to rotate. The rotation of the synchronous gear 821 drives the synchronous shaft 82 to rotate, the synchronous shaft 82 drives the driving shaft 83 to rotate, and the driving shaft 83 drives the eccentric wheel 51 to rotate, so that the eccentric wheel 51 rotates synchronously.

[0035] refer to Figure 1 and Figure 3 , a cover 9 is installed on the top of the driving seat 8, and the cover 9 and the driving seat 8 are connected by bolts. The cover 9 covers the driving motor 81, the driving gear 811 and the synchronous gear 821, and the synchronous shaft 82 passes through the side wall of the cover 9. The cover 9 covers the driving motor 81, the driving gear 811 and the synchronous gear 821, thereby reducing the situation where debris is stuck between the driving gear 811 and the synchronous gear 821.

[0036] The implementation principle of a positioning tool for ultrasonic welding of a tab in the embodiment of the present application is as follows: when welding the tab, the driving motor 81 rotates to rotate the eccentric wheel 51, and the eccentric wheel 51 causes the top of the lifting rod 52 to rise, and then until the top of the lifting block 4 fits with the inner wall of the lifting groove 41, at which time the welding tooth 31 is inserted into the tooth hole 21, and the top of the welding tooth 31 protrudes from the top of the placement plate 2. When the welding of the tab is completed, the driving motor 81 rotates to rotate the eccentric wheel 51, and the eccentric wheel 51 causes the top of the lifting rod 52 to drop, and the top of the lifting rod 52 drops and drives the lifting block 4 to move down along the lifting groove 41, so that the top of the welding tooth 31 retracts below the top of the placement plate 2, and then the welding tooth 31 is separated from the tab, reducing the situation where the tab sticks to the welding seat. When the tab is removed, it is not easy for the welding tooth 31 to pull the tab and cause the tab to break.

[0037] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A positioning tool for ultrasonic welding of a tab, comprising a base (1), a group of side panels (11) being fixedly arranged on the base (1), a placement plate (2) being fixedly arranged on the side panels (11), characterized in that: The placement plate (2) is provided with a plurality of tooth holes (21), welding teeth (31) are inserted into the tooth holes (21), and a tooth plate (3) is provided at the bottom of the welding teeth (31). A lifting groove (41) is provided on the opposite surface of the side plate (11), and a lifting block (4) is slidably provided in the lifting groove (41). The opposite surface of the lifting block (4) is fixedly connected to the end wall of the tooth plate (3). A lifting assembly (5) is provided in the lifting groove (41), and the lifting assembly (5) is used to make the lifting block (4) slide along the lifting groove (41).

2. The positioning tool for ultrasonic welding of a tab according to claim 1, characterized in that: The lifting assembly (5) comprises an eccentric wheel (51) and a lifting rod (52); the eccentric wheel (51) is rotatably arranged in the lifting groove (41); one end of the lifting rod (52) is rotatably connected to the eccentric wheel (51); and the other end of the lifting rod (52) is slidably connected to the lifting block (4).

3. The positioning tool for ultrasonic welding of a tab according to claim 2, characterized in that: A connecting slide groove (61) is provided at the bottom end of the lifting block (4), a connecting slider (6) is slidably arranged in the connecting slide groove (61), and the connecting slider (6) is fixedly connected to one end of the lifting rod (52) away from the eccentric wheel (51).

4. The positioning tool for ultrasonic welding of a tab according to claim 3, characterized in that: A group of limiting sliding grooves (71) are provided on the inner wall of the connecting sliding groove (61), the limiting sliding grooves (71) are arranged opposite to each other, a limiting sliding block (7) is slidably arranged in the limiting sliding groove (71), and the opposite surface of the limiting sliding block (7) is fixedly connected to the connecting sliding block (6).

5. The positioning tool for ultrasonic welding of a tab according to claim 2, characterized in that: A driving shaft (83) is fixedly arranged on the opposite surface of the eccentric wheel (51), and a synchronizing shaft (82) is fixedly arranged on the opposite surface of the driving shaft (83).

6. The positioning tool for ultrasonic welding of a tab according to claim 5, characterized in that: A driving seat (8) is fixedly arranged between the side plates (11), and a driving motor (81) is fixedly arranged on the driving seat (8). The driving motor (81) is used to drive the synchronous shaft (82) to rotate.

7. The positioning tool for ultrasonic welding of a tab according to claim 6, characterized in that: A synchronous gear (821) is sleeved on the synchronous shaft (82), and the synchronous gear (821) is fixedly connected to the synchronous shaft (82). A driving gear (811) is fixedly arranged on the output shaft of the driving motor (81), and the driving gear (811) and the synchronous gear (821) are meshed with each other.

8. The positioning tool for ultrasonic welding of a tab according to claim 7, characterized in that: A cover shell (9) is detachably arranged on the driving seat (8); the cover shell (9) covers the driving motor (81), the driving gear (811) and the synchronous gear (821); and the synchronous shaft (82) passes through the side wall of the cover shell (9).

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