Resistance welding equipment for composite material
The composite material resistance welding equipment, with its multiple fixing methods and lifting and moving design, solves the problems of unstable fixing, limited functionality, and poor mobility of welding equipment for new energy vehicles, achieving a high-precision and efficient welding process and improving production quality and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-03-17
AI Technical Summary
Existing composite material welding equipment for new energy vehicles suffers from several drawbacks: a single fixing method makes it difficult to closely fit complex-shaped parts, resulting in low welding precision; limited functionality fails to meet the needs of various welding processes; and the equipment is inconvenient to move and adjust in height, increasing labor intensity, posing safety hazards, and reducing production efficiency.
The system employs a cylinder-driven extrusion frame combined with a motor-driven clamping plate, providing multiple fixing methods; the lifting assembly achieves height adjustment via a motor-driven threaded rod; support legs and casters enhance equipment mobility, while the support base design ensures stability.
Improve welding precision and product quality, reduce defect rate, increase production efficiency, reduce labor intensity, lower costs, and enhance equipment flexibility and safety.
Smart Images
Figure CN223997514U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of resistance welding technology, and more specifically, to a resistance welding device for composite materials. Background Technology
[0002] With the booming development of the new energy vehicle manufacturing industry, composite materials are being used more and more widely in automotive parts. Their unique performance advantages, such as lightweight and high strength, provide strong support for improving the range and enhancing the safety of new energy vehicles. However, current equipment used for welding composite materials in new energy vehicles has many shortcomings.
[0003] First, the welding and fixing methods are extremely limited. Most equipment relies solely on simple clamps for fixation, making it difficult to achieve tight fit and stable clamping for complex-shaped new energy vehicle components, such as battery module housings and irregularly shaped body frames. During the welding process, the workpiece is prone to displacement, significantly reducing welding accuracy, severely impacting product quality and performance, and increasing the defect rate and production costs.
[0004] Secondly, the equipment has very limited functionality. In the production of new energy vehicles, different welding processes and materials place diverse demands on the equipment. However, existing welding equipment often only has a single welding function and cannot meet the switching between various welding processes such as spot welding, seam welding, and butt welding. It is also difficult to optimize parameters for different composite material properties, which greatly limits the flexibility and efficiency of production.
[0005] Furthermore, the mobility and lifting functions of the equipment are lacking or inadequate. In actual production scenarios, the processing positions of new energy vehicle components vary, as do the height and work habits of the operators. Most existing equipment is difficult to move flexibly and cannot be easily adjusted in height, forcing operators to perform additional workpiece handling or posture adjustments during work. This not only increases labor intensity but also easily leads to safety hazards and reduces production efficiency. Utility Model Content
[0006] To address the above shortcomings, this invention provides a composite material resistance welding device, aiming to improve the production quality and efficiency of new energy vehicles.
[0007] This utility model is implemented as follows: A composite material resistance welding device includes a base and a support base. A lifting assembly is installed between the top end of the base and the bottom end of the support base. A U-shaped frame is symmetrically slidably installed on the support base. A driving assembly is installed on the U-shaped frame. A cylinder is fixedly installed at the top end of the U-shaped frame. The output end of the cylinder passes through the top end of the U-shaped frame and is fixedly installed with an extrusion frame. Clamping plates are symmetrically slidably installed on the inner wall of the extrusion frame. Side plates are symmetrically fixedly installed on one side of the extrusion frame. A first bidirectional threaded rod is rotatably installed between the two side plates. The clamping plates are symmetrically threaded onto the first bidirectional threaded rod. A first motor is installed at one end of the first bidirectional threaded rod. A resistance welding component is installed at the top end of the support base.
[0008] In a preferred embodiment of this utility model, the driving assembly includes a first slider and a second bidirectional threaded rod. The first sliders are symmetrically fixedly installed on both sides of the inner wall of the U-shaped frame. The support base has first grooves on both sides that match the first sliders. The second bidirectional threaded rod is rotatably installed on the inner wall of one of the first grooves. The two first sliders on the same side are symmetrically threaded onto the second bidirectional threaded rod. The first guide rod is fixedly installed on the inner wall of the other first groove. The two first sliders on the same side are symmetrically slidably installed onto the first guide rod. A second motor is installed at one end of the second bidirectional threaded rod. A circular groove is provided on one side of the support base. The second motor is fixedly installed in the circular groove. The output end of the second motor passes through one side of the circular groove and is fixedly connected to one end of the second bidirectional threaded rod.
[0009] In a preferred embodiment of this utility model, a second guide rod is fixedly installed on the inner wall of the extrusion frame, and the clamping plate is symmetrically slidably installed on the second guide rod.
[0010] In the preferred embodiment of this utility model, a first anti-slip pad is fixedly installed on the two clamping plates on each side, which are relatively close to each other, and a second anti-slip pad is fixedly installed on the bottom end of the extrusion frame.
[0011] In a preferred embodiment of this utility model, the resistance welding component includes a support frame, a second slider, and a resistance welding gun. The support frame is fixedly installed at the top of the support base. The support frame is U-shaped. The second slider is slidably installed at the top of the inner wall of the support frame. An electric push rod is fixedly installed at the bottom of the second slider. The resistance welding gun is fixedly installed at the output end of the electric push rod.
[0012] In a preferred embodiment of this utility model, the lifting assembly includes a third bidirectional threaded rod, a third motor, and a first sliding plate. The base has a square hole, and horizontal plates are symmetrically fixedly installed on the inner wall of the square hole. The third bidirectional threaded rod is rotatably installed between the two horizontal plates. The third motor is fixedly installed at one end of the third bidirectional threaded rod. The first sliding plate is symmetrically threaded on the third bidirectional threaded rod. Support rods are symmetrically hinged to the top ends of the two first sliding plates. The two support rods are staggered. The top ends of the support rods are hinged to second sliding plates. The two second sliding plates are symmetrically slidably connected to the bottom end of the support base.
[0013] In a preferred embodiment of this utility model, a support shaft is rotatably installed at the center between the two support rods, a first limiting block is symmetrically fixedly installed at the top of the second slide plate, a first limiting groove matching the first limiting block is provided at the bottom of the support base, the first limiting block is slidably connected to the inner wall of the first limiting groove, and the first limiting block is T-shaped.
[0014] In a preferred embodiment of this utility model, a round rod is fixedly installed between the two horizontal plates, the first sliding plate is slidably installed on the round rod, and second limiting blocks are symmetrically fixedly installed at both ends of the first sliding plate. The inner wall of the square hole is provided with a second limiting groove that matches the second limiting block. The round rod is symmetrically arranged on both sides of the third bidirectional threaded rod, and the second limiting block is T-shaped.
[0015] In a preferred embodiment of this utility model, support legs are fixedly installed at the four corners of the bottom of the support base, the bottom ends of the support legs pass through the base and are fixedly installed with casters, the base is provided with through holes that match the support legs, and the length of the support legs is the same as the thickness of the base.
[0016] The beneficial effects of this utility model are:
[0017] Multiple Fixing Methods: This utility model integrates multiple fixing methods. A cylinder drives the extrusion frame for initial extrusion and fixing, while a first motor drives a first bidirectional threaded rod to move the clamping plates relative to each other for clamping and fixing. This allows for flexible selection of appropriate fixing methods based on the specific shape, size, and welding process requirements of the workpiece, effectively preventing workpiece displacement during welding and improving welding accuracy and product quality. For example, when welding battery module casings, the clamping plates can precisely hold the workpiece, ensuring accurate weld point positioning and improving the sealing and safety of the battery module.
[0018] Convenient Lifting and Movement: The lifting assembly is driven by a third motor and a third bidirectional threaded rod, which in turn moves the first sliding plate, support rod, and second sliding plate to achieve smooth lifting and lowering of the support base. The height can be flexibly adjusted according to the operator's needs and the workpiece's processing position, reducing labor intensity and improving operational comfort and safety. Meanwhile, the support legs and casters at the bottom of the support base facilitate movement of the equipment within the workshop, allowing for quick relocation to different work areas and improving production efficiency.
[0019] Improved production efficiency: Multiple fixing methods reduce pre-welding preparation, and convenient lifting and moving functions optimize the operation process, making the entire welding process more efficient. In large-scale new energy vehicle production, this can significantly shorten the production cycle, increase production capacity, and enhance the company's market competitiveness.
[0020] Reduced production costs: The versatility and flexibility of the equipment reduce the cost for enterprises to purchase multiple specialized equipment due to insufficient equipment functionality. At the same time, it reduces the defect rate and the cost of rework and scrapping caused by product quality problems, saving enterprises a lot of money and promoting the sustainable development of the new energy vehicle industry. Attached Figure Description
[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the structure of a composite material resistance welding device provided by an embodiment of the present invention;
[0023] Figure 2 A side view of a composite material resistance welding device is provided for an embodiment of this utility model;
[0024] Figure 3 A schematic diagram of the U-shaped frame is provided for the embodiments of this utility model;
[0025] Figure 4 A structural schematic diagram of the lifting assembly is provided for the embodiments of this utility model;
[0026] Figure 5 A partial structural schematic diagram of the lifting assembly is provided for the embodiments of this utility model.
[0027] In the diagram: 110-base; 111-support leg; 112-caster wheel; 120-support seat; 130-U-shaped frame; 131-first slider; 132-cylinder; 133-extrusion frame; 134-clamping plate; 135-first bidirectional threaded rod; 136-first motor; 137-second guide rod; 140-support frame; 141-second slider; 142-resistance welding gun; 150-third bidirectional threaded rod; 151-third motor; 152-first sliding plate; 153-horizontal plate; 154-support rod; 155-second sliding plate; 156-round rod; 157-second limiting block. Detailed Implementation
[0028] 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 with reference to the accompanying drawings. 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 scope of protection of this utility model.
[0029] Please see Figures 1-3 This utility model provides a technical solution: a composite material resistance welding device, including a base 110 and a support 120. A lifting assembly is installed between the top of the base 110 and the bottom of the support 120. A U-shaped frame 130 is symmetrically slidably installed on the support 120. A driving assembly is installed on the U-shaped frame 130. A cylinder 132 is fixedly installed at the top of the U-shaped frame 130. The output end of the cylinder 132 passes through the top of the U-shaped frame 130 and is fixedly installed with an extrusion frame 133. Clamping plates 134 are symmetrically slidably installed on the inner wall of the extrusion frame 133. Side plates are symmetrically fixedly installed on one side of the extrusion frame 133, and the two side plates can rotate between each other. The first bidirectional threaded rod 135 is installed, and the clamping plate 134 is symmetrically threaded onto the first bidirectional threaded rod 135. The first motor 136 is installed at one end of the first bidirectional threaded rod 135. The top of the support base 120 is equipped with a resistance welding component, which includes a support frame 140, a second slider 141, and a resistance welding gun 142. The support frame 140 is fixedly installed at the top of the support base 120. The support frame 140 is U-shaped. The second slider 141 is slidably installed on the top of the inner wall of the support frame 140. An electric push rod is fixedly installed at the bottom of the second slider 141. The output end of the electric push rod is fixedly installed with the resistance welding gun 142.
[0030] In some specific implementations, the drive assembly includes a first slider 131 and a second bidirectional threaded rod. The first sliders 131 are symmetrically fixedly mounted on both sides of the inner wall of the U-shaped frame 130. The support base 120 has first grooves on both sides that match the first sliders 131. The second bidirectional threaded rod is rotatably mounted on the inner wall of one of the first grooves. Two first sliders 131 on the same side are symmetrically threaded onto the second bidirectional threaded rod. A first guide rod is fixedly mounted on the inner wall of the other first groove. Two first sliders 131 on the same side are symmetrically slidably mounted onto the first guide rod. A second motor is mounted on one end of the second bidirectional threaded rod. A circular groove is provided on one side of the support base 120, and the second motor is fixedly mounted in the circular groove. The output end of the second motor passes through one side of the circular groove and is fixedly connected to one end of the second bidirectional threaded rod. During the welding of composite materials for new energy vehicles, the U-shaped frame 130 can be quickly moved to a suitable position according to the size of different workpieces and the welding position requirements, improving welding efficiency. For example, when welding large composite material parts for vehicle bodies, the position of the U-shaped frame 130 can be flexibly adjusted to ensure that the welding equipment can accurately align with the welding area, avoiding welding defects caused by positional deviations and ensuring welding quality.
[0031] In some specific implementations, a second guide rod 137 is fixedly installed on the inner wall of the extrusion frame 133, and the clamping plate 134 is symmetrically slidably installed on the second guide rod 137, providing stable guidance for the sliding of the clamping plate 134. This allows the clamping plate 134 to move more smoothly relative to the workpiece when clamping it, ensuring that the clamping force is evenly distributed on the workpiece. When welding small precision components such as new energy vehicle battery modules, it can effectively prevent workpiece damage caused by the shaking or displacement of the clamping plate 134, improve the clamping accuracy and stability, thereby ensuring the positional accuracy of the workpiece during the welding process and improving the welding quality.
[0032] In some specific implementations, a first anti-slip pad is fixedly installed on the two clamping plates 134 on each side, with the first anti-slip pad fixedly installed on the side closest to the first, and a second anti-slip pad is fixedly installed on the bottom of the extrusion frame 133. The anti-slip pads ensure that the workpiece remains in a fixed position during the welding process, avoiding displacement that could affect the welding effect and improving the reliability of the welding.
[0033] Please see Figure 4 and Figure 5The lifting assembly includes a third bidirectional threaded rod 150, a third motor 151, and a first sliding plate 152. A square hole is provided on the base 110, and horizontal plates 153 are symmetrically fixedly installed on the inner wall of the square hole. The third bidirectional threaded rod 150 is rotatably installed between the two horizontal plates 153. The third motor 151 is fixedly installed at one end of the third bidirectional threaded rod 150. The first sliding plate 152 is symmetrically threaded onto the third bidirectional threaded rod 150. Support rods 154 are symmetrically hinged to the tops of the two first sliding plates 152. The two support rods 154 are staggered. A second sliding plate 155 is hinged to the top of the support rods 154. The two second sliding plates 155 are symmetrically slidably connected to the bottom of the support base 120. A support shaft is rotatably installed at the center between the two support rods 154. A first limiting block is symmetrically fixedly installed on the top of the second sliding plate 155. A first limiting groove matching the first limiting block is provided at the bottom of the support base 120. The first limiting block is slidably connected to the inner wall of the first limiting groove. The first limiting block is T-shaped. The support shaft, rotatably mounted at the center of the support rods 154, enhances the stability of the entire lifting structure. The first limiting block at the top of the second sliding plate 155 engages with the first limiting groove at the bottom of the support base 120, limiting the movement range of the second sliding plate 155 and making the support base 120 more stable and precise during lifting. When adjusting the height of the support base 120, it effectively prevents swaying or displacement, ensuring the stability of the equipment during operation. When welding large components for new energy vehicles, it ensures that the equipment will not shift due to instability of the support base 120 during welding, improving welding accuracy and quality.
[0034] In some specific implementations, a round rod 156 is fixedly installed between the two horizontal plates 153. A first sliding plate 152 is slidably mounted on the round rod 156. Second limiting blocks 157 are symmetrically fixedly installed at both ends of the first sliding plate 152. A second limiting groove matching the second limiting block 157 is provided on the inner wall of the square hole. The round rod 156 is symmetrically arranged on both sides of the third bidirectional threaded rod 150. The second limiting blocks 157 are T-shaped. The round rod 156 fixedly installed between the horizontal plates 153 provides auxiliary guidance for the movement of the first sliding plate 152, making it more stable when moving in the threaded connection to the third bidirectional threaded rod 150. The second limiting blocks 157 at both ends of the first sliding plate 152 cooperate with the second limiting groove on the inner wall of the square hole, further restricting the movement of the first sliding plate 152 and preventing it from rotating or shifting during movement. This makes the lifting assembly more reliable during operation, ensuring the stability and accuracy of the lifting of the support 120. In the production of new energy vehicles, where frequent height adjustments are required, this ensures the consistency of each lifting operation, providing a stable foundation for high-quality welding.
[0035] In some specific implementations, support legs 111 are fixedly installed at the four corners of the bottom of the support base 120. The bottom ends of the support legs 111 penetrate the base 110 and are fixedly installed with casters 112. The base 110 is provided with through holes that match the support legs 111, and the length of the support legs 111 is the same as the thickness of the base 110. This gives the equipment good mobility. In new energy vehicle production workshops, the equipment can be easily moved to different work areas to adapt to the needs of different production lines. When welding new energy vehicle components in different locations is required, the equipment can be moved quickly, reducing the time cost of equipment handling and installation, and improving production efficiency. At the same time, the support legs 111 provide stable support when the equipment is working, ensuring that the equipment does not shake during the welding process.
[0036] Working principle: When in use, push the equipment to the processing area, start the third motor 151 to drive the third bidirectional threaded rod 150 to rotate. The rotation of the third bidirectional threaded rod 150 drives the two first slide plates 152 to move relative to each other. The movement of the first slide plates 152, through the cooperation of the support rod 154 and the second slide plate 155, drives the support base 120 to rise to a suitable working height. At the same time, the support leg 111 rises synchronously with the support base 120 to the bottom of the base 110 to be in contact with the ground for support. Place the workpiece to be welded on the support base 120, start the second motor to drive the second bidirectional threaded rod to rotate. The rotation of the second bidirectional threaded rod drives the U-shaped frame 130 to adjust to a suitable position through the first slider 131. Start the cylinder 132 to drive the extrusion frame 133 to move down to extrude and fix the workpiece. If clamping and fixing are required, start the first motor 136 to drive the first bidirectional threaded rod 135 to rotate. The rotation of the first bidirectional threaded rod 135 drives the two clamping plates 134 to move relative to each other to clamp and fix the workpiece. Finally, push the second slider 141 to move to the welding area, start the electric push rod and resistance welding gun 142 to cooperate for welding.
[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A composite material resistance welding apparatus characterized by comprising: The utility model provides a kind of resistance welding device, including base and support seat, lifting assembly is installed between the top of the base and the bottom of the support seat, U-shaped frame is symmetrically slidably installed on the support seat, drive assembly is installed on the U-shaped frame, cylinder is fixedly installed on the top of the U-shaped frame, the output end of the cylinder is through the top of the U-shaped frame and fixedly installs extrusion frame, clamping plate is symmetrically slidably installed in the inner wall of the extrusion frame, side plate is fixedly installed on one side of the extrusion frame, first two-way threaded rod is rotatably installed between two side plates, clamping plate is symmetrically screwed on the first two-way threaded rod, first motor is installed on the first two-way threaded rod, resistance welding part is installed on the top of the support seat.
2. A composite material resistance welding apparatus according to claim 1, wherein The drive assembly includes a first sliding block and a second two-way threaded rod, the first sliding block is fixedly installed on the inner wall of the U-shaped frame, the support seat is provided with a first sliding groove matched with the first sliding block, the second two-way threaded rod is rotatably installed in the inner wall of one of the first sliding grooves, the two first sliding blocks on the same side are symmetrically screwed on the second two-way threaded rod, the first guide rod is fixedly installed in the inner wall of the other first sliding groove, the two first sliding blocks on the same side are symmetrically slidably installed on the first guide rod, and the second motor is installed on one end of the second two-way threaded rod.
3. A composite material resistance welding apparatus according to claim 1, wherein The second guide rod is fixedly installed in the inner wall of the extrusion frame, and the clamping plate is symmetrically slidably installed on the second guide rod.
4. A composite material resistance welding apparatus according to claim 1, wherein First anti-skid pads are fixedly installed on the side close to each other of the two clamping plates on each side, and second anti-skid pads are fixedly installed on the bottom of the extrusion frame.
5. A composite material resistance welding apparatus according to claim 1, wherein The resistance welding part includes a support frame, a second sliding block and a resistance welding gun, the support frame is fixedly installed on the top of the support seat, the support frame is U-shaped, the second sliding block is slidably installed on the top of the inner wall of the support frame, the electric push rod is fixedly installed on the bottom of the second sliding block, and the resistance welding gun is fixedly installed on the output end of the electric push rod.
6. A composite material resistance welding apparatus according to claim 1, wherein The lifting assembly includes a third two-way threaded rod, a third motor and a first sliding plate, the square hole is provided on the base, the horizontal plates are fixedly installed on the inner wall of the square hole, the third two-way threaded rod is rotatably installed between the two horizontal plates, the third motor is fixedly installed on one end of the third two-way threaded rod, the first sliding plate is symmetrically screwed on the third two-way threaded rod, the two first sliding plates are symmetrically hingedly connected with support rods, the two support rods are staggered, the second sliding plate is hingedly connected with the support rods, and the bottom of the support seat is symmetrically slidably connected with the support rods.
7. A composite material resistance welding apparatus according to claim 6, wherein A support shaft is rotatably installed at the center between the two support rods, the second sliding plate is symmetrically fixedly installed with first limiting blocks on the top, the support seat is provided with a first limiting groove matched with the first limiting blocks on the bottom, and the first limiting blocks are slidably connected with the inner wall of the first limiting groove.
8. A composite material resistance welding apparatus according to claim 6, wherein A round rod is fixedly installed between the two horizontal plates, the first sliding plate is slidably installed on the round rod, the second limiting blocks are symmetrically fixedly installed on the two ends of the first sliding plate, and the second limiting grooves matched with the second limiting blocks are provided on the inner wall of the square hole.
9. The composite material resistance welding apparatus of claim 1, wherein, Support legs are fixedly installed on the bottom of the support seat, the support legs are fixedly installed with universal wheels through the base.