Copper bar welding tooling

Abstract

This utility model relates to the field of welding technology, specifically to a copper busbar welding fixture, comprising: a welding table, a docking mechanism and a welding mechanism respectively disposed on the welding table; the docking mechanism includes: a sliding plate slidably mounted on the welding table, a sliding groove formed on the sliding plate, a placement plate slidably mounted in the sliding groove, a threaded rod threadedly connected to the placement plate, a motor driving the threaded rod to rotate, a side plate slidably mounted on the placement plate, a guide plate that moves inward with the side plate, and a cooling component for cooling the weld after welding. This utility model's copper busbar welding fixture, by starting the motor to rotate, achieves precise docking of the copper busbar and clamps and fixes it simultaneously during docking; furthermore, by driving the motor to rotate in the opposite direction, it can also drive a nozzle to move along the weld to cool the weld after welding.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, specifically to a copper busbar welding fixture. Background Technology

[0002] Copper busbars are long, rectangular or chamfered rectangular conductors made of copper, widely used in power, new energy, and other fields. In power systems, they are key channels for current transmission within high- and low-voltage switchgear and other equipment, reducing power loss and ensuring stable system operation. In the new energy field, they are used in equipment such as electric vehicle charging stations to facilitate efficient power conversion and transmission.

[0003] In actual manufacturing, it is often necessary to connect copper busbars of different specifications or copper busbars with other metal components. Welding is a reliable connection method with advantages such as high strength and good conductivity. However, copper busbar welding faces challenges. Its high thermal conductivity causes the copper busbar to bend when heated, resulting in welding deviations.

[0004] Patent application CN202420912630.5 discloses a copper busbar welding fixture, including a machine body, a ball screw, and a connecting chamber. The machine body houses the ball screw, with a ball sleeve threaded onto its surface. A welding head is mounted on the bottom of the ball sleeve. A movable component is located at one end of the ball screw, and an electric push rod is mounted on the bottom of the movable component. The electric push rod is located inside the connecting chamber. The machine body is connected to one side of the connecting chamber, and a base is connected to the bottom of the machine body. A dual-output motor is installed inside the base, with lead screws on both sides of the dual-output motor. This invention uses two sets of frames that move relative to each other to clamp the workpiece, preventing it from moving during welding and causing misalignment between the workpiece and the copper busbar, thus improving welding stability. Activating the electric telescopic rod lowers the positioning block at the bottom, fixing the copper busbar on the workpiece and preventing it from moving during welding, which would result in poor welding quality.

[0005] However, in practice, the process described in this patent has safety hazards in the material handling stage. Specifically, because the temperature at the copper busbar weld is too high after the welding operation, operators are very likely to suffer burns from the high-temperature copper busbar when performing material handling.

[0006] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Utility Model Content

[0007] The purpose of this utility model is to provide a copper busbar welding fixture that can effectively solve the above-mentioned technical problems.

[0008] To achieve the purpose of this utility model, the following technical solution is adopted:

[0009] A copper busbar welding fixture includes: a welding table, a docking mechanism and a welding mechanism respectively disposed on the welding table;

[0010] The docking mechanism includes: a sliding plate slidably mounted on the welding table, a sliding groove on the sliding plate, a placement plate slidably mounted in the sliding groove, a threaded rod threadedly connected to the placement plate, a motor driving the threaded rod to rotate, a side plate slidably mounted on the placement plate, a guide plate that moves inward with the side plate, and a cooling component for cooling the weld after welding; the guide plate is fixedly mounted on the welding table, the guide plate has a guide groove, and the side plate is slidably mounted in the guide groove through a connector.

[0011] Furthermore, the guide plate is an inclined plate that gradually approaches the copper busbar on one side.

[0012] Furthermore, the placement plates are arranged in two sets facing each other; the threaded rod has two sections of reverse threads; the placement plates are respectively threaded to the reverse threads at both ends of the threaded rod.

[0013] Furthermore, the cooling assembly includes: a hinge rod hinged to the placement plate, a drive rod hinged to the other end of the hinge rod, a piston fixedly installed at one end of the drive rod, and an air chamber sleeved on the outside of the piston rod; a nozzle fixedly installed at the other end of the hinge rod; the nozzle is connected to the air chamber through a pipe; and the air chamber is fixedly installed on the welding platform.

[0014] Furthermore, the welding table is also equipped with a cylinder that drives the sliding plate closer to the welding mechanism.

[0015] Furthermore, the welding mechanism includes: a welding frame fixedly installed on the welding table, a second cylinder fixedly installed on the welding frame, and a welding head fixedly installed on the telescopic rod of the second cylinder.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The copper busbar welding fixture of the present invention achieves precise docking of the copper busbar by starting the motor to rotate, and simultaneously clamps and fixes the copper busbar during docking; moreover, when the drive motor rotates in the reverse direction, it can also drive the nozzle to move along the weld seam to cool the weld seam after welding. Attached Figure Description

[0017] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0018] Figure 1 This is a schematic diagram of the structure of a copper busbar welding fixture according to the present invention;

[0019] Figure 2 This is a schematic diagram of the docking mechanism in this utility model;

[0020] Figure 3 This is a schematic diagram of the docking mechanism from another angle in this utility model;

[0021] Figure 4 This is a schematic diagram of the cooling component in this utility model;

[0022] Figure 5 This is a cross-sectional view of the cooling component in this utility model.

[0023] In the diagram: 1. Welding table; 3. Docking mechanism; 2. Welding mechanism; 31. Sliding plate; 32. Sliding groove; 33. Placement plate; 34. Threaded rod; 35. Motor; 36. Side plate; 37. Guide plate; 38. Cooling component; 39. Guide groove; 381. Hinge rod; 382. Drive rod; 383. Piston; 384. Air chamber; 385. Nozzle; 4. Cylinder 1; 21. Welding frame; 22. Cylinder 2; 23. Welding head. Detailed Implementation

[0024] 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. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0025] In the description of this utility model, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships 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 on the scope of protection of this utility model. When a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intermediate component at the same time. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0026] like Figures 1 to 5 As shown, the present invention provides a copper busbar welding fixture, comprising: a welding table 1, a docking mechanism 3 and a welding mechanism 2 respectively disposed on the welding table 1;

[0027] The docking mechanism 3 includes: a sliding plate 31 slidably mounted on the welding table 1, a sliding groove 32 formed on the sliding plate 31, a placement plate 33 slidably mounted in the sliding groove 32, a threaded rod 34 threadedly connected to the placement plate 33, a motor 35 driving the threaded rod 34 to rotate, a side plate 36 slidably mounted on the placement plate 33, a guide plate 37 that moves inward with the side plate 36, and a cooling component 38 for cooling the weld after welding; the guide plate 37 is fixedly mounted on the welding table 1, and a guide groove 39 is formed on the guide plate 37, and the side plate 36 is slidably mounted in the guide groove 39 through a connector; the welding table 1 is also provided with a cylinder 4 that drives the sliding plate 31 to approach the welding mechanism 2.

[0028] The placement plate 33 is provided in two opposite directions; the threaded rod 34 is provided with two reverse threads; the placement plate 33 is threadedly connected to the reverse threads at both ends of the threaded rod 34 respectively.

[0029] When copper busbar butt welding is required, the operator activates the cylinder-4 drive mechanism. The piston 383 of cylinder-4 extends, pushing the sliding plate 31 to move along the guide rail away from below the welding head 23 and towards the operator's workstation. This design provides ample operating space for the operator, effectively preventing burns caused by accidental contact with the high-temperature welding head 23 during material handling, and significantly improving operational safety.

[0030] After the sliding plate 31 moves to a preset position convenient for the operator, the operator places the two copper busbars to be welded onto the two placement plates 33 respectively. Then, the motor 35 drive system is activated, causing the threaded rod 34 to rotate. The threaded rod 34 employs a bidirectional thread design or is configured with two threaded segments with opposite directions of rotation. Under the action of the threaded transmission, the two placement plates 33 move synchronously towards each other along the guide rail, allowing the two copper busbars to precisely approach and complete the weld. This synchronous, opposite-direction movement mechanism ensures precise alignment of the weld seam directly below the welding head 23, effectively eliminating weld seam misalignment caused by manual alignment errors, thereby significantly improving welding accuracy and quality, and meeting the requirements of high-precision welding processes.

[0031] The guide plate 37 is an inclined plate that gradually approaches the copper busbar on one side. During the opposite displacement of the placement plate 33, the two side plates 36, which are slidably mounted on the placement plate 33, move synchronously with the placement plate 33. At the same time, they are guided by the inclined surface and generate a composite displacement component perpendicular to the docking direction, causing the side plates 36 to perform a progressive clamping action towards the side wall of the copper busbar along a preset trajectory. This mechanism realizes automatic centering and self-adaptive clamping of the copper busbar through mechanical linkage, effectively eliminating workpiece displacement caused by thermal deformation or vibration during welding, and significantly improving the dynamic stability of the welding process.

[0032] After the welding operation is completed, as the placement plate 33 performs a reverse separation movement, the side plate 36 automatically releases its clamping state on the copper busbar under the constraint of the inclined surface of the guide plate 37, realizing the rapid release of the workpiece. This self-resetting clamping mechanism realizes the fully automated coordination of the "clamping-welding-release" process through a purely mechanical structure, without the need for additional drive components. This simplifies the control logic, shortens auxiliary operation time, and comprehensively improves the production efficiency and process reliability of the welding production line.

[0033] The cooling assembly 38 includes: a hinge rod 381 hinged to the placement plate 33; a drive rod 382 hinged to the other end of the hinge rod 381; a piston 383 fixedly installed at one end of the drive rod 382; and an air chamber 384 sleeved on the outside of the piston 383 rod. A nozzle 385 is fixedly installed at the other end of the hinge rod 381. The nozzle 385 is connected to the air chamber 384 through a pipe. The air chamber 384 is fixedly installed on the welding table 1.

[0034] After the copper busbar welding process is completed, the motor 35 drive system is started, and the motor 35 drives the threaded rod 34 to perform a reverse rotation. Based on the threaded transmission principle, the two placement plates 33 achieve synchronous separation along the guide rail. During this process, the hinge rod 381, which is hinged to the end of the placement plate 33, swings with the displacement of the placement plate 33. Its swing trajectory is converted into the axial linear motion of the drive rod 382 along the cylinder chamber 384 through the linkage mechanism. The drive rod 382 is rigidly connected to the cylinder piston 383. Its axial displacement pushes the piston 383 to perform a compression stroke in the cylinder chamber 384, which reduces the volume of the chamber 384 and increases the internal air pressure.

[0035] After the copper busbar is welded, the motor 35 drives the threaded rod 34 to rotate in the opposite direction, causing the placement plates 33 to move synchronously apart. At this time, the hinge rod 381, which is hinged to one end of the placement plate 33, pushes the drive rod 382 to move along the air chamber 384. The drive rod 382 pushes the piston 383 in the cylinder to move along the air chamber 384. Meanwhile, the nozzle 385, which is fixed to the other end of the drive rod 382, ​​moves along the weld, thereby compressing the air in the air chamber 384. The compressed air in the air chamber 384 is then transported through the pipe to the nozzle 385 and sprayed onto the weld at the weld joint. This achieves active control of the temperature field in the heat-affected zone of the weld, which can significantly accelerate the phase transformation solidification process of the weld metal and shorten the residual stress release cycle. At the same time, by rapidly reducing the surface temperature of the weld to below the safe operating threshold, the risk of burns caused by high-temperature workpieces during subsequent material handling operations is effectively eliminated, achieving the dual optimization goals of process efficiency and operational safety.

[0036] As a further extension of this application, in order to improve the cooling efficiency, a cooling plate can be installed outside the gas chamber 384 so that when the piston 383 compresses the gas in the gas chamber 384 and sprays it toward the weld, it can spray gas with a lower temperature to improve the cooling effect.

[0037] The welding mechanism 2 includes: a welding frame 21 fixedly installed on the welding table 1, a cylinder fixedly installed on the welding frame 21, and a welding head 23 fixedly installed on the cylinder telescopic rod.

[0038] After the copper busbars are connected under the drive of the docking mechanism 3, cylinder 22 pushes the welding head 23 close to the copper busbars to achieve welding of the copper busbars.

[0039] In summary, by starting the motor 35 to rotate, on the one hand, precise docking of the copper busbar is achieved, and on the other hand, the copper busbar is clamped and fixed at the same time as docking. Moreover, when the drive motor 35 rotates in the opposite direction, it can also drive the nozzle 385 to move along the weld seam to cool the weld seam after welding.

[0040] Working principle: When copper busbar butt welding is required, the operator places the two copper busbars to be butt welded onto the two placement plates 33 respectively. Then, the motor 35 drive system is started, and the motor 35 drives the threaded rod 34 to rotate. The threaded rod 34 adopts a bidirectional thread design or is configured with two threaded sections with opposite directions of rotation. Under the action of thread transmission, the two placement plates 33 move synchronously towards each other along the guide rail, so that the two copper busbars are precisely brought close together and the butt welding is completed. After the copper busbar is welded, the motor 35 drives the threaded rod 34 to rotate in the opposite direction, causing the placement plates 33 to move synchronously apart. At this time, the hinge rod 381, which is hinged to one end of the placement plate 33, pushes the drive rod 382 to move along the air chamber 384. The drive rod 382 pushes the piston 383 in the cylinder to move along the air chamber 384. At this time, the nozzle 385, which is fixed to the other end of the drive rod 382, ​​moves along the weld, thereby compressing the air in the air chamber 384. The compressed air in the air chamber 384 is then transported through the pipe to the nozzle 385 and sprayed onto the weld at the weld joint. This achieves active control of the temperature field in the heat-affected zone of the weld, which can significantly accelerate the phase transformation solidification process of the weld metal and shorten the residual stress release cycle of the weld.

[0041] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0042] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A copper busbar welding fixture, characterized in that, include: A welding table, a docking mechanism and a welding mechanism respectively disposed on the welding table; The docking mechanism includes: a sliding plate slidably mounted on the welding table, a sliding groove on the sliding plate, a placement plate slidably mounted in the sliding groove, a threaded rod threadedly connected to the placement plate, a motor driving the threaded rod to rotate, a side plate slidably mounted on the placement plate, a guide plate that moves inward with the side plate, and a cooling component for cooling the weld after welding; the guide plate is fixedly mounted on the welding table, the guide plate has a guide groove, and the side plate is slidably mounted in the guide groove through a connector.

2. The copper busbar welding fixture as described in claim 1, characterized in that, The guide plate is an inclined plate that gradually approaches the copper busbar on one side.

3. The copper busbar welding fixture as described in claim 2, characterized in that, The placement plates are arranged in two opposite directions; the threaded rod has two reverse threads; the placement plates are respectively threaded to the reverse threads at both ends of the threaded rod.

4. The copper busbar welding fixture as described in claim 3, characterized in that, The cooling assembly includes: a hinge rod hinged to the placement plate, a drive rod hinged to the other end of the hinge rod, a piston fixedly installed at one end of the drive rod, and an air chamber sleeved on the outside of the piston rod; a nozzle fixedly installed at the other end of the hinge rod; the nozzle is connected to the air chamber through a pipe; and the air chamber is fixedly installed on the welding table.

5. The copper busbar welding fixture as described in claim 1, characterized in that, The welding table is also equipped with a cylinder that drives the sliding plate closer to the welding mechanism.

6. The copper busbar welding fixture as described in claim 5, characterized in that, The welding mechanism includes: a welding frame fixedly installed on the welding table, a second cylinder fixedly installed on the welding frame, and a welding head fixedly installed on the telescopic rod of the second cylinder.

Images