Module welding positioning tool
By using a limiting block, a bevel gear meshing structure, and a motor-driven lead screw rotation, the problem of difficult alignment during welding of the battery module housing frame end plate and side plate has been solved, improving welding efficiency and ease of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-04-07
AI Technical Summary
In the existing technology, it is difficult to quickly align the end plates and side plates of the battery module housing frame during welding, resulting in time-consuming and labor-intensive adjustments and low welding efficiency.
The system employs a limiting block and a bevel gear meshing structure. The motor drives the lead screw to rotate, thereby moving the limiting block and fixing the clamping plate. This ensures that the side plate and end plate are vertically aligned and uses a clamping mechanism to prevent welding misalignment.
It enables rapid alignment and fixation of side plates and end plates, improves welding efficiency, simplifies the operation process, and reduces manual adjustment time.
Smart Images

Figure CN224088290U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of positioning tooling technology, specifically a module welding positioning tooling. Background Technology
[0002] Lithium-ion batteries are currently considered the best-performing green batteries due to their high voltage, high capacity, low power consumption, no memory effect, no pollution, small size, low internal resistance, low self-discharge, and high cycle life. They are widely used in new energy vehicles, mobile phones, laptops, and many other civilian and military applications. The battery cell is the smallest unit of a lithium-ion battery, possessing high energy density to store as much electrical energy as possible, thus enabling electric vehicles or other devices equipped with lithium-ion batteries to achieve longer driving ranges. When multiple battery cells are packaged together in a housing frame, they form a battery module.
[0003] The overall shape of the outer shell frame is rectangular, with end plates at both ends and side plates between the two end plates. In the production process of the battery module's outer shell frame, the end plates and side plates are usually connected together by welding.
[0004] According to the Chinese patent publication number "CN218461365U", a welding fixture for facilitating module positioning is disclosed, including a base, two fixing plates are symmetrically fixedly installed on the upper surface of the base, a rectangular groove is opened through the upper surface of the base, and a moving block is slidably installed on the inner wall at both ends of the rectangular groove. Two clamping plates are symmetrically fixedly installed on the upper surface of the moving block. This invention uses a movable block connected by a thread on the outer surface of an adjusting screw to move two clamping plates, causing the side of the clamped end plate to move closer to the side of the side plate until the side of the end plate and the side plate are aligned. Since the fixing plate and the clamping plate are perpendicular to each other, the side plate and the end plate are also perpendicular to each other after alignment, which facilitates the positioning and welding of the side plate and the end plate. By allowing the position of the clamping plate to be freely adjusted along the axis of the adjusting screw on the base, the clamping plate and the fixing plate can clamp and position end plates and side plates of different sizes, thus facilitating use. Although the above technology can fix the side plate and the end plate, it is inconvenient to align the side plate and the end plate to form a right angle, which requires constant adjustment, which is time-consuming and laborious. Therefore, a modular welding positioning fixture is proposed to solve the above-mentioned problems. Utility Model Content
[0005] The technical problem to be solved by this utility model is to provide a module welding positioning fixture to address the shortcomings of the prior art.
[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a module welding positioning fixture, including a base, a support plate fixedly connected to the bottom of the base, an alignment mechanism provided on the base, the alignment mechanism including a limiting block one and a limiting block two, the limiting block one being located on the front of the limiting block two and perpendicular to the limiting block two, the bottom of the limiting block one and the limiting block two being fixedly connected to the bottom of the limiting block one and the limiting block two respectively, the connecting rod one and the connecting rod two being threadedly connected to the lead screw one and the lead screw two respectively, one end of the lead screw one and the lead screw two being fixedly connected to the other, the first bevel tooth and the second bevel tooth being meshed and connected.
[0007] Preferably, the top of the base is provided with a sliding hole one and a sliding hole two, the connecting rod one passes through the sliding hole one and is slidably connected to the sliding hole one, and the connecting rod two passes through the sliding hole two and is slidably connected to the sliding hole two.
[0008] Preferably, the bottom of the base is fixedly connected to a connecting plate one and a connecting plate two, and the end of the lead screw two away from the second bevel tooth is rotatably connected to the left side of the connecting plate two through a bearing one.
[0009] Preferably, a motor is fixedly installed on the front side of the connecting plate, and the output shaft of the motor is fixedly connected to the front end of the lead screw. The motor is provided to drive the lead screw to rotate.
[0010] Preferably, the top of the base is provided with a clamping mechanism, which includes a limiting plate. The limiting plate is threadedly connected to a lead screw three. One end of the lead screw three is rotatably connected to a clamping plate through a bearing two. By setting the limiting plate, the side plate or the end plate can be limited.
[0011] Preferably, a rotating block is fixedly connected to the other end of the lead screw three, which facilitates the rotation of the lead screw three.
[0012] The present invention adopts the above technical solution, which can bring the following beneficial effects:
[0013] 1. The module welding positioning fixture places the side plate and end plate vertically within the right angle formed by limit block one and limit block two. After fixing the side plate and end plate, the motor can be started to drive the lead screw one to rotate. The lead screw one drives the lead screw two to rotate through the first bevel tooth and the second bevel tooth, thereby causing the connecting rod one to move the limit block one backward and the connecting rod two to move the limit block two to the right, which facilitates the subsequent welding. The side plate and end plate process is simple and convenient, improving welding efficiency.
[0014] 2. The module welding positioning fixture, after the side plate and end plate are placed, rotates the rotating blocks of the two sets of clamping mechanisms, which drives the lead screw three to rotate. The lead screw three drives the clamping plate to fix the side plate and end plate, so as to avoid displacement during welding. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the alignment mechanism of this utility model;
[0017] Figure 3 This is a schematic diagram of the bottom structure of the limiting block one and limiting block two of this utility model.
[0018] In the diagram: 1. Base; 2. Support plate; 3. Alignment mechanism; 31. Limiting block one; 32. Limiting block two; 33. Connecting rod one; 34. Lead screw one; 35. Connecting plate one; 36. Motor; 37. First bevel gear; 38. Second bevel gear; 39. Lead screw two; 310. Connecting rod two; 311. Connecting plate two; 4. Clamping mechanism; 41. Limiting plate; 42. Lead screw three; 43. Clamping plate. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" means two or more, unless otherwise explicitly specified.
[0023] Please see Figure 1-3 One embodiment of this utility model is: a module welding positioning fixture, including a base 1, with a support plate 2 fixedly connected to the bottom of the base 1. The base 1 is made of high-strength aluminum alloy, which has advantages such as light weight, high strength, and good heat dissipation performance. Light weight facilitates the handling and installation of the fixture, allowing workers to easily move it in the actual production workshop; high strength ensures that the fixture will not deform due to the weight of the side plates and end plates or the vibration generated during welding during long-term use, guaranteeing positioning accuracy; good heat dissipation performance effectively reduces the impact of heat generated by the motor 36 during operation on the overall structure of the fixture, extending its service life. An alignment mechanism 3 is provided on the base 1, including a first limiting block 31 and a second limiting block 32. Located on the front of limit block 2 32 and perpendicular to it, limit blocks 1 31 and 2 32 are made of wear-resistant polyoxymethylene, ensuring that they will not wear out too quickly despite frequent contact with the side plate and end plate during repeated use. Connecting rod 1 33 and connecting rod 2 310 are fixedly connected to the bottom of limit blocks 1 31 and 2 32 respectively. Connecting rod 1 33 and connecting rod 2 310 are threadedly connected to lead screw 1 34 and lead screw 2 39 respectively. One end of lead screw 1 34 and lead screw 2 39 are fixedly connected to a first cone. The base 1 has a first bevel tooth 37 and a second bevel tooth 38, which mesh with each other. The top of the base 1 has a sliding hole 1 and a sliding hole 2. A connecting rod 1 33 passes through the first sliding hole and is slidably connected to it. A connecting rod 2 310 passes through the second sliding hole and is slidably connected to it. The bottom of the base 1 is fixedly connected to a connecting plate 1 35 and a connecting plate 2 311. The end of a lead screw 2 39 away from the second bevel tooth 38 is rotatably connected to the left side of the connecting plate 2 311 via a bearing 1. A motor 36 is fixedly mounted on the front of the connecting plate 1 35, and the output shaft of the motor 36... The motor 36 is fixedly connected to the front end of the lead screw 34. The motor 36 is used to drive the lead screw 34 to rotate. The lead screw 34 and the lead screw 39 are made of stainless steel. Stainless steel not only has high mechanical strength and can withstand large torque to ensure that it will not bend or deform during rotation, but also has good corrosion resistance. Even in harsh production environments, it can work stably for a long time and reduce the occurrence of the lead screw transmission accuracy being affected by rust. The motor 36 is equipped with an independent control switch, which has forward and reverse functions as well as speed adjustment function.
[0024] Working principle: By placing the side plate and end plate vertically within the right angle formed by limiting block 31 and limiting block 32, and fixing the side plate and end plate, the motor 36 can be started to drive the lead screw 34 to rotate. The lead screw 34 drives the lead screw 39 to rotate through the first bevel tooth 37 and the second bevel tooth 38, thereby causing the connecting rod 33 to move the limiting block 31 backward and the connecting rod 310 to move the limiting block 32 to the right, which facilitates subsequent welding. The side plate and end plate process is simple and convenient, improving welding efficiency.
[0025] Please see Figure 1 Based on the above embodiments, in another embodiment of the present invention, a clamping mechanism 4 is provided on the top of the base 1. The clamping mechanism 4 includes a limiting plate 41, and a lead screw 42 is threadedly connected to the limiting plate 41. The material of the lead screw 42 is the same as that of the lead screw 34. One end of the lead screw 42 is rotatably connected to a clamping plate 43 through a bearing 2. By setting the limiting plate 41, the side plate or the end plate can be limited. There are two sets of clamping mechanisms 4, which are arranged vertically to fix the side plate and the end plate.
[0026] Working principle: After the side plate and end plate are placed, the rotating blocks of the two sets of clamping mechanisms 4 are rotated, which drives the lead screw 42 to rotate. The lead screw 42 drives the clamping plate 43 to fix the side plate and end plate, so as to prevent displacement during welding.
[0027] It is worth noting that all the technologies not described in the above manual are existing technologies and are not the main innovations, so they will not be described in detail here.
[0028] This utility model provides a module welding positioning fixture. There are many methods and approaches to implement this technical solution; the above is only a preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model. All components not explicitly stated in this embodiment can be implemented using existing technology.
Claims
1. A module welding positioning fixture, comprising a base (1), characterized in that: The base (1) is fixedly connected to a support plate (2). The base (1) is provided with an alignment mechanism (3). The alignment mechanism (3) includes a limiting block one (31) and a limiting block two (32). The limiting block one (31) is located on the front of the limiting block two (32) and is perpendicular to the limiting block two (32). The bottom of the limiting block one (31) and the limiting block two (32) are respectively fixedly connected to a connecting rod one (33) and a connecting rod two (310). The connecting rod one (33) and the connecting rod two (310) are respectively threadedly connected to a lead screw one (34) and a lead screw two (39). One end of the lead screw one (34) and the lead screw two (39) are respectively fixedly connected to a first bevel tooth (37) and a second bevel tooth (38). The first bevel tooth (37) and the second bevel tooth (38) are meshed together.
2. The module welding positioning fixture according to claim 1, characterized in that: The top of the base (1) is provided with a sliding hole one and a sliding hole two. The connecting rod one (33) passes through the sliding hole one and is slidably connected to the sliding hole one. The connecting rod two (310) passes through the sliding hole two and is slidably connected to the sliding hole two.
3. The module welding positioning fixture according to claim 1, characterized in that: The bottom of the base (1) is fixedly connected to a connecting plate one (35) and a connecting plate two (311). The end of the lead screw two (39) away from the second bevel tooth (38) is rotatably connected to the left side of the connecting plate two (311) through a bearing one.
4. The module welding positioning fixture according to claim 3, characterized in that: A motor (36) is fixedly installed on the front side of the connecting plate (35), and the output shaft of the motor (36) is fixedly connected to the front end of the lead screw (34).
5. The module welding positioning fixture according to claim 1, characterized in that: The base (1) is provided with a clamping mechanism (4) at its top. The clamping mechanism (4) includes a limiting plate (41). The limiting plate (41) is threadedly connected to a lead screw (42). One end of the lead screw (42) is rotatably connected to a clamping plate (43) through a bearing.
6. The module welding positioning fixture according to claim 5, characterized in that: The other end of the lead screw (42) is fixedly connected to a rotating block.
Citation Information
Patent Citations
Welding tool facilitating module positioning
CN218461365U