A welding positioning device

Abstract

This invention provides a welding positioning device, including a base, a welding block, and pressure claws. The base is equipped with a fixing component, and the welding block is detachably connected to the base. The welding block has a welding area, and the pressure claws pass through the welding area at the top of the welding block and abut against the base. Both ends of the pressure claws are detachably connected to the base. This invention uses the fixing component to fix the core to the base, places the connecting piece in the welding area, and the detachable connection of the two ends of the pressure claws to the base allows the pressure claws to fix the connecting piece in the welding area. Through the cooperation of the welding block and the pressure claws, the displacement of the connecting piece during welding is reduced, improving welding efficiency.

Description

Technical Field

[0001] This utility model relates to the field of battery welding technology, specifically to a welding positioning device. Background Technology

[0002] Existing ultrasonic welding fixtures are usually designed for a single core model. When changing the core model, the fixture of the ultrasonic welding fixture needs to be replaced or the ultrasonic welding fixture needs to be manually adjusted, resulting in low welding efficiency. The adjustment mechanism can only be adjusted in one direction and lacks self-adaptive locking function, which can easily cause the welded joint to shift, resulting in low welding efficiency and high cost. Utility Model Content

[0003] The technical problem to be solved by this utility model is how to solve the problem of misalignment of the welded connecting piece.

[0004] This utility model solves the above-mentioned technical problems through the following technical means: This utility model provides a welding positioning device, including a base, a welding block and a pressure claw. The base is provided with a fixing component, the welding block is detachably connected to the base, the welding block is provided with a welding area, the pressure claw passes through the welding area at the top of the welding block and abuts against the base, and both ends of the pressure claw are detachably connected to the base.

[0005] Beneficial effects: This utility model fixes the core to the base with a fixing component, places the connecting piece in the welding area, and the two ends of the pressure claw are detachably connected to the base, so that the pressure claw can fix the connecting piece in the welding area. Through the cooperation of the welding block and the pressure claw, the displacement of the connecting piece during welding is reduced, and the welding efficiency is improved.

[0006] Preferably, the fixing components are a bidirectional lead screw and clamps. The bidirectional lead screw is fixed to the top of the base, and clamps are fixed to both ends of the bidirectional lead screw. The clamps move towards or away from each other by rotating the bidirectional lead screw.

[0007] Preferably, the bidirectional lead screw includes a first lead screw and a second lead screw, wherein the first lead screw is fixed in the horizontal direction of the base and the second lead screw is fixed in the vertical direction of the base.

[0008] Preferably, the pitch of the bidirectional lead screw is 2mm±0.1mm, the lead angle is 29°±1°, and the tolerance zone is 7H / 7g.

[0009] Beneficial effects: This utility model uses the rotation of a bidirectional lead screw to drive the clamps to move in opposite directions, thereby achieving the function of fixing the core, without the need to replace the clamps or make manual adjustments.

[0010] Preferably, the base is provided with bearing seats at both ends in the horizontal and vertical directions, and the bearing seats are used to fix the first lead screw and the second lead screw.

[0011] Preferably, the bottom of the welding block is provided with a positioning block, and the base is provided with a magnetic block. The positioning block and the magnetic block fix the welding block on the base by adsorption.

[0012] Beneficial effects: This utility model, through the cooperation of positioning blocks and magnetic blocks, facilitates the replacement of welding blocks of different models and can shorten the replacement time.

[0013] Preferably, the middle part of the pressure claw passes through the welding area and abuts against the base via a pin.

[0014] Beneficial effects: The two ends of the pressure claw of this utility model are detachably connected to the base, so that the pressure claw can be fixed on the base. At this time, the connecting piece can be fixed in the welding area by pulling the pin, and the connecting piece can be fixed by the pin.

[0015] Preferably, the base is provided with fulcrum holes, which are located on both sides of the welding block, and the two ends of the pressure claw are connected to the fulcrum holes by plugging and unplugging.

[0016] Preferably, the lead angle of the welding block is 55°±2°, and the surface roughness Ra≤0.8μm. Attached Figure Description

[0017] Figure 1 This is a top view schematic diagram of a welding positioning device according to an embodiment of this utility model; Figure 2 This is a schematic diagram of the bottom structure of the welding block in an embodiment of this utility model. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. It should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] according to Figure 1-2 As shown, this embodiment provides a welding positioning device, which includes a base 10, a welding block 20, and a pressure claw 30. The base 10 is provided with a fixing component for fixing the core (not shown). The welding block 20 is detachably connected to the base 10. The welding block 20 is provided with a welding area 21 for placing and fixing the connecting piece (not shown). The pressure claw 30 is located at the top of the welding block 20 and can pass through the welding area 21 to abut against the base. Both ends of the pressure claw 30 are detachably connected to the base 10.

[0021] The fixing components are a bidirectional lead screw (not shown in the figure) and a clamping plate 13. The bidirectional lead screw is fixed to the top of the base, and clamping plates 13 are fixed at both ends of the bidirectional lead screw. By rotating the bidirectional lead screw, the clamping plates 13 can be moved in opposite directions or in opposite directions, thereby achieving the purpose of fixing or moving the core by rotating the bidirectional lead screw through the clamping plates 13.

[0022] The bidirectional lead screw includes a first lead screw 11 and a second lead screw 12. The first lead screw 11 is fixed at the middle of the base 10 in the horizontal direction, and the second lead screw 12 is fixed in the vertical direction of the base 10. In this embodiment, two second lead screws 12 are respectively fixed on both sides of the welding block 20. The base 10 is provided with bearing seats (not shown) at both ends in the horizontal and vertical directions. The bearing seats are used to fix the first lead screw 11 and the second lead screw 12. In this embodiment, the first lead screw 11 and the second lead screw 12 are trapezoidal lead screws with a pitch of 2mm, a lead angle of 29°, and a tolerance zone of 7H / 7g.

[0023] The bottom of the welding block 20 is provided with a positioning block 22, which is evenly distributed in the middle of the welding block 20. A magnetic block (not shown) is provided at the corresponding position of the positioning block 22 at the bottom of the base 10. The welding block 20 is fixed to the top of the base 10 by the cooperation of the magnetic block and the positioning block 22. According to... Figure 1 As shown, both the first lead screw 11 and the second lead screw 12 are above the welding block 20. Welding areas 21 are provided above and below the positioning block 22. The shape of the welding area 21 can be set according to the shape of the connecting piece; in this embodiment, the welding area 21 is convex. The welding block 20 is made of glass fiber reinforced polyamide, with a dovetail groove lead angle of 55° and a surface roughness Ra≤0.8μm.

[0024] The base 10 is provided with fulcrum holes 31, which are located between the second lead screw 12 and the welding block 20. Both sides of the welding block 20 are provided with fulcrum holes 31. Multiple fulcrum holes 31 are provided, arranged according to the size or shape of the connecting piece. In this embodiment, three fulcrum holes 31 are provided, spaced apart horizontally on the base 10, with a distance of 15mm between them. The two ends of the pressure claw 30 are connected to the fulcrum holes 31 via insertion and extraction. When the two ends of the pressure claw 30 are connected to different fulcrum holes 31, the clamping force of the pressure claw 30 on the connecting piece is different. The pressure claw 30 is a spring steel sheet, possessing a certain elasticity, allowing it to be connected to different fulcrum holes 31 via insertion and extraction. A pin is provided in the middle of the pressure claw 30, and the two ends of the pressure claw 30 are fixed in the fulcrum holes 31 via insertion and extraction, serving to fix the pressure claw 30. The pin can pass through the welding area 21 and abut against the base 10, or the base 10 has a through hole (not shown) at the position corresponding to the pin, and the pin can be placed in the through hole. When the connecting piece needs to be placed in the welding area 21, the operator needs to pull up the pin so that the clamping claw 30 is no longer abutting against the base 10. At this time, the connecting piece can be placed in the welding area 21, and then the pin can be lowered. The clamping claw 30 provides a stable clamping force on the connecting piece, which plays the role of fixing the connecting piece, ensuring that the connecting piece is less misaligned during welding and improving welding efficiency. In this embodiment, the shape of the clamping claw 30 is arc-shaped. The shape of the clamping claw 30 is not required, as long as it can fix the connecting piece.

[0025] The working principle of the welding positioning device in this embodiment is as follows: 1. The worker pulls up the pin of the pressure claw 30 and puts the connecting piece of the core into the welding area 21 of the welding block 20. Then, the first lead screw 11 and the second lead screw 12 are rotated to drive the clamping plate 13 to fix the core until the inner side of the clamping plate 13 is in close contact with the left and right sides of the core but not completely jammed, thus completing the positioning of the core. The whole process takes about 3 seconds.

[0026] 2. Lower the pin of the pressure claw 30. The two ends of the pressure claw 30 are fixed in the fulcrum hole 31 by insertion and removal, allowing the pressure claw 30 to naturally press against the connecting piece. Then, start the ultrasonic welding machine to perform welding. Throughout the welding process, the pressure claw continuously provides a stable clamping force, effectively suppressing the displacement of the connecting piece under high-frequency vibration.

[0027] 3. After welding is completed, pull up the pin of the pressure claw to remove the welded core.

[0028] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions 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 this utility model.

Claims

1. A welding positioning device, characterized in that, It includes a base (10), a welding block (20) and a pressure claw (30). The base (10) is provided with a fixing component. The welding block (20) is detachably connected to the base (10). The welding block (20) is provided with a welding area (21). The pressure claw (30) passes through the welding area (21) at the top of the welding block (20) and abuts against the base (10). Both ends of the pressure claw (30) are detachably connected to the base (10).

2. The welding positioning device according to claim 1, characterized in that, The fixing components are a two-way screw and a clamp (13). The two-way screw is fixed to the top of the base, and the clamps (13) are fixed at both ends of the two-way screw. The clamps (13) can be moved towards each other or away from each other by rotating the two-way screw.

3. The welding positioning device according to claim 2, characterized in that, The pitch of the bidirectional lead screw is 2mm±0.1mm, the lead angle is 29°±1°, and the tolerance zone is 7H / 7g.

4. The welding positioning device according to claim 2, characterized in that, The bidirectional lead screw includes a first lead screw (11) and a second lead screw (12). The first lead screw (11) is fixed in the horizontal direction of the base (10), and the second lead screw (12) is fixed in the vertical direction of the base (10).

5. The welding positioning device according to claim 3, characterized in that, The base (10) is provided with bearing seats at both ends in the horizontal and vertical directions, and the bearing seats are used to fix the first lead screw (11) and the second lead screw (12).

6. The welding positioning device according to claim 1, characterized in that, The welding block (20) has a positioning block (22) at its bottom and a magnetic block on the base (10). The positioning block (22) and the magnetic block fix the welding block (20) on the base (10) by adsorption.

7. The welding positioning device according to claim 1, characterized in that, The middle part of the pressure claw (30) passes through the welding area (21) and abuts against the base (10) via a pin.

8. The welding positioning device according to claim 1, characterized in that, The pressure claw (30) is a spring steel sheet.

9. The welding positioning device according to claim 1, characterized in that, The base (10) is provided with a fulcrum hole (31), which is located on both sides of the welding block (20). The two ends of the pressure claw (30) are connected to the fulcrum hole (31) by plugging and unplugging.

10. The welding positioning device according to claim 1, characterized in that, The lead angle of the welding block (20) is 55°±2° and the surface roughness Ra≤0.8μm.

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