Battery cap pressure welding positioning tool
By combining the first and second positioning support tubes with the design of the pushing cylinder and the limiting cylinder, the problems of time-consuming and labor-intensive manual feeding and large equipment space occupation during the battery cap pressure welding process are solved. This achieves automated pressure welding and cost reduction, avoids battery cap deformation, and improves processing efficiency and space utilization.
Patent Information
- Application Number
- CN202520977466.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-19
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-05-19
AI Technical Summary
In the existing battery cap welding process, manual feeding is time-consuming, labor-intensive, and poses safety hazards, while automatic feeding devices are complex and costly. Welding equipment occupies a large space, and battery caps are prone to deformation, affecting quality.
By employing a first positioning support tube and a second positioning support tube, combined with a push cylinder and a limit cylinder, automated pressure welding of the battery cap and casing is achieved. Large-area support is provided through heated inserts and heat-insulating inserts to avoid local deformation, simplify the structure, and reduce costs.
It enables automated pressure welding of battery caps and casings, reducing operational intensity and safety hazards, improving space utilization and processing efficiency, and reducing costs and maintenance expenses.
Smart Images

Figure CN223947011U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to battery processing technical field, especially, relate to a battery cover cap pressure welding positioning tool. BACKGROUND
[0002] Battery, refers to the cup, tank or other container or composite container part space that has electrolyte solution and metal electrode to produce electric current, can convert chemical energy into electric energy. The division of positive and negative, and battery cover cap is one of important structures in the production process, which provides battery sealing function, prevents alkali liquid from climbing and permeating outward, the role of safety valve, removes high pressure gas generated at high temperature, battery cover cap and battery shell are connected by pressure welding after processing, and the size of battery is usually small, and most of the batteries are cylindrical, so the battery cover cap and the battery shell are usually connected by pressure welding, pressure welding is a welding method that applies pressure to the combined welding part under heating or non-heating condition to make it produce plastic deformation or melting, and through recrystallization and diffusion, the atoms on the two separated surfaces are connected by metal bonds, and in the pressure welding process, in order to ensure the stability of welding processing, positioning tool is needed to position the battery shell and the battery cover cap, so that the battery cover cap and the battery shell can be accurately connected, but it still has the following problems in actual use:
[0003] The utility model discloses a kind of lithium battery cover cap pressure welding devices, pressure welding workstation is provided with pressure welding mechanism above, pressure welding workstation is provided with positioning loading mechanism above, positioning loading mechanism includes positioning sleeve, first pressure welding backplate, second pressure welding backplate and position adjusting cylinder, positioning sleeve is embedded fixed in the upper end of pressure welding workstation, first pressure welding backplate is set on the upper surface of pressure welding workstation, when loading battery cover cap, single battery cover cap is often needed to be placed in specified position manually, since battery cover cap is relatively light and thin, it is difficult to quickly grab single battery cover cap, and the edge of battery cover cap is relatively sharp, and manual loading has certain security risk, and it is time-consuming and laborious to operate when processing a large number of batteries, and the structure of automatic loading device is complex, which increases cost and maintenance expenditure.
[0004] When pressure welding battery cover cap, positioning tool and pressure welding equipment often occupy larger space of workstation, and since battery cover cap is relatively light and thin and has protrusion, and the structure of pressure welding is often smaller than the size of battery cover cap, when pressure is applied to battery cover cap during pressure welding process, battery cover cap can be slightly deformed, which reduces cost quality. UTILITY MODEL CONTENTS
[0005] The purpose of this utility model is to provide a battery cap pressure welding positioning fixture. Through the first positioning support tube and the second positioning support tube, it solves the problems of manual feeding of battery caps being time-consuming and laborious, automatic feeding devices being complex in structure and costly, pressure welding equipment and positioning fixture occupying a large space, and the pressure applied to the battery cap by the pressure welding structure during pressure welding causing deformation of the battery cap.
[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0007] This utility model is a battery cap pressure welding positioning fixture, including a first positioning support tube and a second positioning support tube. A first pushing cylinder is snapped at one end of the first positioning support tube. A discharge support frame is rotatably snapped through the bottom of the outer peripheral surface of the first positioning support tube. A second positioning support tube is attached to one end of the first positioning support tube. A second pushing cylinder is snapped at one end of the second positioning support tube. Two limiting cylinders are snapped through the outer peripheral surface of the second positioning support tube. Each limiting cylinder is provided with a heat insulation plate and a heating plate at one end. The heat insulation plate and the heating plate are inserted through the outer peripheral surface of the second positioning support tube.
[0008] The first pushing cylinder pushes the battery casing, pressing it against one side of the battery cap, allowing for pressure welding between the cap and casing. After welding, rotating the discharge support frame opens the discharge mechanism, allowing the battery casing and cap to be discharged under gravity, facilitating the pressure welding of another battery casing and cap. The second pushing cylinder can feed multiple battery caps, and while one battery is being pressure welded, a control limit cylinder moves the heat insulation plate and heating plate, enabling the welding of one battery cap and the remaining caps. The battery casing and battery cap are separated and heated by a heating plate, and then pressure welded together. After one battery cap is pressure welded, the remaining battery caps are pushed and loaded. The structure is simple and easy to operate. During the pressure welding process, the heating plate can provide large-area support for one side of the battery cap, which can improve the heating rate of the battery cap and battery casing and avoid local stress that could cause slight deformation of the battery cap. The positioning fixture is simple and compact, easy to operate, reduces costs and maintenance expenses, and improves space utilization.
[0009] Furthermore, a first feed inlet is provided on one side of the outer peripheral surface of the first positioning support tube. The first feed inlet is located on one side of the first push cylinder. A rotating motor is clamped on the outer peripheral surface of the first positioning support tube. The other end of the rotating motor is clamped on one side of the discharge support frame. The discharge support frame is located between the first feed inlet and the second positioning support tube.
[0010] After the battery shell and the battery cap are pressure welded, the discharging support frame is driven to rotate downward by the motor, so that the battery shell located in the first positioning support pipe is discharged under the action of gravity, and the automation degree of the pressure welding positioning tool is improved.
[0011] Further, the first positioning support pipe is welded and fixed with a first mounting frame at the bottom of the outer periphery surface, one end of the first push cylinder is slidably connected with a first telescopic rod, and the other end of the first telescopic rod is connected with a first push plate.
[0012] The first push cylinder can push the battery shell, so that the battery shell is quickly fed, and the battery shell and the battery cap are pressure welded.
[0013] Further, the second positioning support pipe is provided with a second feeding port at one side of the outer periphery surface, the second feeding port is located at one side of the second push cylinder, the second positioning support pipe is welded and fixed with a second mounting frame at the bottom, one end of the second push cylinder is slidably connected with a second telescopic rod, and one end of the second telescopic rod is connected with a second push plate.
[0014] When feeding the battery cap, the stacked battery caps are placed in the second positioning support pipe through the second feeding port, and the battery caps are moved by the second push cylinder, so that the battery caps are fed, and after the battery caps are attached to one end of the battery shell, the limiting cylinder drives the heating plate and the heat insulation plate to move, so that the single battery cap to be processed is separated, the single battery cap can be pressure welded with the battery shell, the structure is simple, the feeding strength of a large number of battery caps is reduced, and the safety hazard during feeding is reduced.
[0015] Further, one end of each limiting cylinder is slidably connected with a third telescopic rod, the other end of the third telescopic rod is connected with a support plate, the heat insulation plate and the heating plate are connected to one side of the support plate, the limiting cylinder is located between the second feeding port and the first positioning support pipe, and the heating plate is located between the heat insulation plate and the first positioning support pipe.
[0016] The heating plate can support a large area of one side of the battery cap, improve the heating speed of the battery cap and the battery shell, avoid local stress from causing the battery cap to be easily deformed, the positioning tool has the advantages of simple structure, small size, convenient operation, reduced cost and maintenance cost, and improved space utilization.
[0017] The utility model has the advantages of the following beneficial effects:
[0018] The utility model discloses a second positioning support pipe is set up, solved when loading to battery cap, often need manual single battery cap is placed in the specified position, because battery cap is light and thin, difficult to snatch single battery cap, and the edge of battery cap is relatively sharp, and manual loading has certain security risk, and when a large number of battery processing, it is time -consuming and labor -saving to operate, and the structure of automatic loading device is complex, and the problem of increasing cost and maintenance expenditure is solved, when the feeding of battery cap is carried out, the stacked multiple battery caps are placed in the second positioning support pipe, and the multiple battery caps are moved through the second push cylinder, and the multiple battery caps are loaded, after multiple battery caps are adhered to the one end of battery shell, control limit cylinder moves heating plug -in board and heat insulation plug -in board, and the single battery cap that needs to be processed is separated, so that single battery cap can be pressed and welded between the battery shell, and after one battery is pressed and welded, the remaining battery cap is pushed and loaded again, and the structure is simple, convenient to operate, and the loading strength of a large number of battery caps is reduced, and the security risk during loading is reduced.
[0019] The utility model discloses a first positioning support pipe and second positioning support pipe are set up, solved when the press welding processing of battery cap, positioning tooling and press welding equipment often occupy the larger space of workstation, and because battery cap is light and thin and has the protruding, and the structure of press welding is often less than the size of battery cap, when the pressure of battery cap is added in the process of press welding, battery cap can slightly deform, reduce the cost quality's problem, when the first push cylinder pushes and loads battery shell and adds the pressure to battery cap, through heating plug -in board can support one side of battery cap, and through heating plug -in board heats battery cap, makes the press welding processing between battery cap and battery shell, and through the large -area contact of heating plug -in board and battery cap, improve the heating speed of battery cap and battery shell, avoid the partial stress leading to the slight deformation of battery cap easily at the same time, and positioning tooling simple and small, convenient operation reduces cost and maintenance expenditure, and improves the space utilization rate. ACCURACY OF DRAWINGS
[0020] Figure 1 It is the structure effect picture of the utility model;
[0021] Figure 2 It is the plan view of the first support positioning pipe of the utility model;
[0022] Figure 3 It is the structure diagram of the first support positioning pipe of the utility model;
[0023] Figure 4 It is the structure diagram of the second support positioning pipe of the utility model;
[0024] Figure 5The utility model discloses a structure diagram of limiting air cylinder.
[0025] Reference signs:
[0026] 1, first positioning support pipe;101, first push air cylinder;102, discharge support frame;103, first feeding port;104, first mounting bracket;105, first telescopic link;106, first push plate;107, rotation motor;2, second positioning support pipe;201, second push air cylinder;202, limiting air cylinder;203, second mounting bracket;204, second feeding port;205, second telescopic link;206, second push plate;207, third telescopic link;208, support plate;209, heat insulation plugboard;210, heating plugboard. Specific implementation
[0027] The technical scheme in the utility model embodiment will be clearly and completely described below with reference to the accompanying drawings in the utility model embodiment.
[0028] Please refer to Figures 1-5 As shown in the utility model discloses a kind of battery cap pressure welding positioning tool, including first positioning support pipe 1 and second positioning support pipe 2, first positioning support pipe 1 one end is clamped with first push air cylinder 101, first positioning support pipe 1 outer circumferential surface bottom is clamped with discharge support frame 102, first positioning support pipe 1 one end is attached with second positioning support pipe 2, second positioning support pipe 2 one end is clamped with second push air cylinder 201, and two limiting air cylinders 202 are clamped on the outer circumferential surface of second positioning support pipe 2, each limiting air cylinder 202 one end is provided with heat insulation plugboard 209 and heating plugboard 210, and heat insulation plugboard 209 and heating plugboard 210 are inserted in the outer circumferential surface of second positioning support pipe 2;
[0029] When the battery cover and the battery shell are pressed and welded, a plurality of stacked battery covers are placed in the second positioning support pipe 2, and a large number of battery covers are moved by the second push cylinder 201 until one side is attached to the heat insulation plug plate 209, a battery shell is placed in the first positioning support pipe 1, and the first push cylinder 101 is controlled to move the battery shell to one end of the first positioning support pipe 1, the limiting cylinder 202 is controlled to move the heat insulation plug plate 209 and the heating plug plate 210 and open one end of the second positioning support pipe 2, the second push cylinder 201 is controlled to push the battery cover again, so that one side of the battery cover is attached to the battery shell, and the limiting cylinder 202 is controlled to move the heat insulation plug plate 209 and the heating plug plate 210 in the opposite direction, while the second push cylinder 201 is controlled to move the second push plate 206 in the opposite direction by a certain distance, so as to separate one battery cover from the remaining battery covers, the first push cylinder 101 is controlled to pressurize the battery shell, and the heating plug plate 210 is controlled to heat the battery cover, so that the battery cover and the battery shell are pressed and welded, and after the pressing and welding is completed, the discharge support frame 102 is rotated to open, so that the battery shell and the cover are discharged under the action of gravity.
[0030] As shown in Figures 1-3 , the first positioning support pipe 1 is provided with a first feeding port 103 on one side of the outer periphery, the first feeding port 103 is located on one side of the first push cylinder 101, the first positioning support pipe 1 is provided with a rotating motor 107 on the outer periphery, the other end of the rotating motor 107 is connected to one side of the discharge support frame 102, the discharge support frame 102 is located between the first feeding port 103 and the second positioning support pipe 2, the first positioning support pipe 1 is welded and fixed with a first mounting frame 104 at the bottom of the outer periphery, one end of the first push cylinder 101 is slidably connected with a first telescopic rod 105, the other end of the first telescopic rod 105 is connected with a first push plate 106, and the first telescopic rod 105 penetrates and is inserted into one end of the first positioning support pipe 1;
[0031] The first positioning support pipe 1 is installed in a suitable position through the first mounting frame 104, and when the battery shell and the battery cover are pressed and welded, the battery shell is placed in the first positioning support pipe 1 through the first feeding port 103, and the first push cylinder 101 is controlled to stretch the first telescopic rod 105, so that the first push plate 106 pushes the battery shell to the specified position, and after the pressing and welding is completed, the discharge support frame 102 is rotated downward by the rotating motor 107, so that the battery shell and the battery cover are discharged under the action of gravity.
[0032] As shown in Figure 1 , 4As shown in FIGS. 5, the second positioning support pipe 2 is provided with a second feeding port 204 on one side of the outer peripheral surface, the second feeding port 204 is located on one side of the second push cylinder 201, the second positioning support pipe 2 is welded and fixed with a second mounting bracket 203 at the bottom, one end of the second push cylinder 201 is slidably connected with a second telescopic rod 205, one end of the second telescopic rod 205 is connected with a second push plate 206, the second telescopic rod 205 penetrates and is inserted into one end of the second positioning support pipe 2, one end of each limiting cylinder 202 is slidably connected with a third telescopic rod 207, the other end of the third telescopic rod 207 is connected with a support plate 208, a heat insulation plug plate 209 and a heating plug plate 210 are connected on one side of the support plate 208, the limiting cylinder 202 is located between the second feeding port 204 and the first positioning support pipe 1, and the heating plug plate 210 is located between the heat insulation plug plate 209 and the first positioning support pipe 1;
[0033] The second positioning support pipe 2 is installed at a suitable position through the second mounting bracket 203, when feeding the battery cap, a plurality of stacked battery caps are placed in the second positioning support pipe 2 through the second feeding port 204, the second telescopic rod 205 is stretched by the second push cylinder 201, the battery cap is further moved by the second push plate 206, a large number of battery caps are moved until one side is attached to the heat insulation plug plate 209, the third telescopic rod 207 is retracted by controlling the limiting cylinder 202, the heating plug plate 210 and the heat insulation plug plate 209 are further moved, the second push cylinder 201 is controlled to push the battery cap, one battery cap is attached to one end of the battery shell, the heating plug plate 210 and the heat insulation plug plate 209 are reversely moved by controlling, the second push cylinder 201 is controlled to reversely move the second push plate 206 by a certain distance, the single battery cap to be processed and the remaining battery caps are separated, the battery cap is heated by controlling the heating plug plate 210, and the single battery cap and the battery shell are pressure welded.
[0034] The specific working principle of the utility model is: first positioning support pipe 1 is installed in suitable position through first mounting frame 104, second positioning support pipe 2 is installed in suitable position through second mounting frame 203, the butt joint between first positioning support pipe 1 and second positioning support pipe 2 is carried out, the stacked multiple battery caps are placed in second positioning support pipe 2, and the movement of second push plate 206 and battery cap is driven through second push cylinder 201, a large number of battery caps are moved until one side is attached to heat insulation plugboard 209, battery shell is placed in first positioning support pipe 1 through first feed inlet 103, and first push plate 106 and battery shell are moved to specified position by controlling first push cylinder 101, third telescopic rod 207 is retracted by controlling limit cylinder 202, further drives heating plugboard 210 and heat insulation plugboard 209 to move, simultaneously controls second push cylinder 201 to push battery cap, and one battery cap is attached to one end of battery shell, then heating plugboard 210 and heat insulation plugboard 209 are moved reversely, simultaneously control second push cylinder 201 to drive second push plate 206 to move reversely by a certain distance, separate the single battery cap needing processing and the remaining battery caps, then heating plugboard 210 is controlled to heat battery cap, first push plate 106 is controlled to pressurize battery shell, the pressure welding between battery cap and battery shell is processed, after pressure welding, the downward rotation of discharge support frame 102 is driven by rotating motor 107, so that battery shell and battery cap are discharged under the action of gravity.
[0035] The above is only the preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement to the technical scheme recorded in the foregoing each embodiment, the equivalent replacement of part technical features, any modification, equivalent replacement, improvement, all belong to the protection scope of the utility model.
Claims
1. A battery cap clinch positioning tooling comprising a first positioning support tube (1) and a second positioning support tube (2), characterized in that: The first positioning support pipe (1) is connected with a first push cylinder (101) at one end, a discharging support frame (102) is rotatably connected to the outer periphery of the first positioning support pipe (1), the first positioning support pipe (1) is connected with a second positioning support pipe (2) at one end, a second push cylinder (201) is connected to the second positioning support pipe (2) at one end, two limiting cylinders (202) are connected to the outer periphery of the second positioning support pipe (2), a heat insulation plug-in plate (209) and a heating plug-in plate (210) are arranged at one end of each limiting cylinder (202), and the heat insulation plug-in plate (209) and the heating plug-in plate (210) are inserted into the outer periphery of the second positioning support pipe (2).
2. The battery cap press welding positioning tool according to claim 1, wherein: A first feeding port (103) is formed in one side of the outer periphery of the first positioning support pipe (1), the first feeding port (103) is located at one side of the first push cylinder (101), a rotating motor (107) is connected to the outer periphery of the first positioning support pipe (1), the rotating motor (107) is connected to one side of the discharging support frame (102) at the other end, and the discharging support frame (102) is located between the first feeding port (103) and the second positioning support pipe (2).
3. The battery cap press welding positioning tool of claim 1, wherein: A first mounting frame (104) is welded and fixed to the bottom of the outer periphery of the first positioning support pipe (1), a first telescopic rod (105) is slidably connected to one end of the first push cylinder (101), a first push plate (106) is connected to the other end of the first telescopic rod (105), and the first telescopic rod (105) is inserted into one end of the first positioning support pipe (1).
4. The battery cap press welding positioning tool of claim 1, wherein: A second feeding port (204) is formed in one side of the outer periphery of the second positioning support pipe (2), the second feeding port (204) is located at one side of the second push cylinder (201), a second mounting frame (203) is welded and fixed to the bottom of the second positioning support pipe (2), a second telescopic rod (205) is slidably connected to one end of the second push cylinder (201), a second push plate (206) is connected to one end of the second telescopic rod (205), and the second telescopic rod (205) is inserted into one end of the second positioning support pipe (2).
5. The battery cap press welding positioning tool of claim 1, wherein: A third telescopic rod (207) is slidably connected to one end of each limiting cylinder (202), a supporting plate (208) is connected to the other end of the third telescopic rod (207), the heat insulation plug-in plate (209) and the heating plug-in plate (210) are connected to one side of the supporting plate (208), the limiting cylinder (202) is located between the second feeding port (204) and the first positioning support pipe (1), and the heating plug-in plate (210) is located between the heat insulation plug-in plate (209) and the first positioning support pipe (1).
Citation Information
Patent Citations
A lithium battery cap pressure welding device
CN222725863U