Laser welding device for metal-based composite material production

Abstract

The invention belongs to the technical field of welding, and discloses a laser welding device for metal matrix composite production, which comprises a welding table, supports are symmetrically arranged at the top of the welding table, a laser welding machine is arranged between the two supports, and a positioning clamping assembly comprises first moving grooves symmetrically formed in the top of the welding table. The top of the movable block is fixedly connected with strip-shaped frames, two sets of movable blocks are arranged at the top of the welding table and movably connected with the two sets of strip-shaped frames at the same time, a clamping block is arranged on one side of each movable block and movably connected with the two sets of strip-shaped frames at the same time, and connecting rods are hinged between the strip-shaped frames and the movable blocks through hinge pieces. The problem that the welding efficiency of the metal-based material is reduced due to the fact that positioning clamping and butt joint operation are difficult to conduct at the same time is effectively solved.

Description

Technical Field

[0001] The invention belongs to the technical field of welding, and in particular relates to a laser welding device for producing metal-based composite materials. Background Art

[0002] Metal Matrix Composites (MMCs) are composite materials that introduce reinforcing phases (such as ceramic fibers, particles or whiskers) into the metal matrix to improve material properties. These materials are widely used in aerospace, automobile manufacturing, national defense and other fields due to their advantages such as high strength, high rigidity, high temperature resistance and corrosion resistance. In order to weld metal matrix composites efficiently and with high quality, laser welding equipment has become an important technical means.

[0003] For example, a Chinese utility model patent with announcement number CN220127897U discloses a laser welding device for welding metal-based composite materials. The device utilizes the meshing connection of two tooth plates with gears at the same time, so that the distances the two tooth plates move away from each other are consistent, thereby making the distances the two clamps move away from each other also consistent, thereby achieving the positioning of the metal-based composite material tube by the two clamps, making it easy to position the metal-based composite material tube at the center of the supporting concave block, thereby facilitating the precise welding of the two metal-based composite material tubes, preventing deviations, and improving the accuracy of welding the metal-based composite material tubes.

[0004] However, when the device is actually used, the two sets of metal-based materials to be welded need to be positioned and clamped separately before the edges of the two are butt-jointed. Since the positioning, clamping and butt-jointing operations are difficult to perform simultaneously, they often need to be performed separately, which reduces the welding efficiency of the metal-based materials.

[0005] In summary, there is currently a need for a laser welding device that can simultaneously perform positioning, clamping and docking operations. Summary of the invention

[0006] The purpose of the present invention is to provide a laser welding device for the production of metal-based composite materials. After using a clamping block assembly to position and clamp two groups of metal-based materials to be welded, the present invention can also use a moving assembly to simultaneously limit the other two surfaces of the metal-based materials, thereby completing the docking work of the two groups of metal-based materials to be welded.

[0007] The technical solution adopted by the present invention to solve the above problems is: a laser welding device for producing metal matrix composite materials, comprising: A welding table, wherein a bracket is arranged on the top of the welding table, and a laser welding machine is arranged on the bracket; A positioning clamping assembly is slidably disposed on the welding table and is used to clamp and align two sets of materials to be welded; The positioning and clamping assembly comprises a clamping block assembly for clamping the material to be welded, and two groups of the clamping block assemblies are provided; The positioning and clamping assembly also includes a moving assembly which is slidably arranged on the welding table and is used to simultaneously move the two sets of clamping block assemblies closer to the material to be welded and simultaneously abut against the material to be welded.

[0008] The welding table is the basic structure of the whole device, which is used to support all other components and provide a stable platform for welding operations. A bracket is set on the top of the welding table to fix the laser welding machine. The laser welding machine can adjust its position on the bracket to facilitate welding. The laser welding machine is the core equipment for welding operations in the prior art. It uses a high-energy laser beam to weld metal-based composite materials. The power, focal position and welding path of the laser beam can be adjusted as needed to adapt to different materials and welding requirements.

[0009] The bracket is fixed on the top of the welding table to support and fix the laser welding machine. The bracket is used to ensure that the laser welding machine remains stable during the welding process to avoid affecting the welding accuracy due to vibration or displacement.

[0010] The main function of the positioning clamping assembly is to clamp two sets of materials to be welded and ensure that they are aligned to prepare for welding. The positioning clamping assembly can slide on the welding table to adjust the position and ensure precise alignment. The clamping block assembly is a part of the positioning clamping assembly, which is specially used to clamp the materials to be welded. Generally, two sets are set to clamp the two sets of materials to be welded respectively. The clamping block assembly needs to provide sufficient clamping force to ensure that the materials will not move or fall off during the welding process.

[0011] The moving assembly is also part of the positioning and clamping assembly, which is responsible for simultaneously moving the two sets of clamping block assemblies closer to the materials to be welded and ensuring that the edges of the two sets of materials are tightly butted. The moving assembly is slidably set on the welding table and can move between different positions for precise clamping and butting operations. During the process of moving the moving assembly, the other two sides of the material are limited at the same time to ensure the alignment and stability of the material in the directions of the four sides.

[0012] A further preferred technical solution is that the clamping block assembly includes a clamping block and a buffer assembly arranged on the clamping block.

[0013] Among them, as a part of the clamping block assembly, the buffer assembly may experience vibration and impact during the welding process, especially during the clamping and docking operations. The buffer assembly can absorb these vibrations and impacts to prevent them from being transmitted to the material to be welded, resulting in unstable welding. In addition, the buffer assembly is usually made of soft or elastic materials, which can provide a certain buffering force during the clamping process to prevent the clamping block from directly contacting and crushing the material to be welded. The buffer assembly can also evenly distribute the force applied to the material during the clamping process to avoid deformation or damage of the material due to concentrated clamping force. The buffer assembly can also adjust itself within a certain range to adapt to materials of different shapes and sizes. For example, a buffer assembly with a spring can adjust the elastic force of the spring. This adaptive ability enables the clamping assembly to more flexibly adapt to various welding requirements.

[0014] A further preferred technical solution is that the buffer assembly comprises a cross bar fixedly connected to the clamp block through a connecting seat, a fixed block slidably connected to the cross bar, a movable block arranged on the fixed block, and a spring sleeved on the cross bar; Two ends of the spring abut against the connecting seat and the fixing block respectively.

[0015] The connection seat is a fixed component used to fix the crossbar on the clamping block. The connection seat provides a stable base to ensure that the crossbar and the entire buffer assembly can be firmly connected to the clamping block and provide support for other components.

[0016] The crossbar is a connecting component between the connecting seat and the fixed block, usually a horizontal rod-shaped structure. The crossbar serves as a supporting structure for the buffer assembly, allowing the fixed block to slide on it to adjust the position of the movable block.

[0017] The fixed block is a sliding component that can slide along the crossbar. By sliding to adjust the position, the fixed block can change the position of the movable block, thereby adjusting the size and distribution of the clamping force.

[0018] The spring is sleeved on the crossbar, with its two ends respectively abutting against the connecting seat and the fixing block. The spring provides buffering and elastic force to absorb the impact and vibration during the clamping process, while maintaining a certain clamping force to ensure that the material remains stable during the welding process.

[0019] A further preferred technical solution is that: a first movable groove is provided on the top of the welding table; the movable assembly includes a first screw rod rotatably connected to the inner side of the first movable groove, a movable block threadedly connected to the first screw rod, a strip frame arranged on the movable block and used to abut against the material to be welded, and a connecting rod hinged between the strip frame and the movable block.

[0020] A further preferred technical solution is that: a guide groove is further provided on the top of the welding table; and the moving assembly further comprises a guide block which is arranged on the bar frame and slidably arranged in the guide groove.

[0021] A further preferred technical solution is that: the clamping block is provided with an anti-slip pad for clamping the material to be welded.

[0022] A further preferred technical solution is that a second movable groove is also provided on the welding table, a second screw rod is rotatably connected inside the second movable groove and the second screw rod is threadedly connected to a preset screw hole on the bracket, a motor is fixedly connected to the welding table and the rotor end of the motor is coaxially fixedly connected to the second screw rod.

[0023] A further preferred technical solution is that: a slide rail is fixedly connected to the bracket, an electric slide is slidably connected to the slide rail, and the electric slide is fixedly connected to the laser welding machine.

[0024] A further preferred technical solution is that a cooling fan is fixedly connected to the bracket.

[0025] A further preferred technical solution is that: a limiting plate for abutting against the fixing block is fixedly connected to the end of the cross bar.

[0026] In summary, the present invention has the following benefits: 1. After the present invention completes the positioning, docking and clamping of two groups of metal-based materials to be welded, the metal-based materials can be limited from four sides, thereby improving the stability of the metal-based materials during welding and effectively improving the welding quality. In addition, by performing docking and limiting immediately after positioning and clamping, the operation steps can be significantly reduced, making the welding process more efficient, avoiding the problem that the positioning, clamping and docking operations need to be performed separately in the traditional method, and greatly shortening the preparation time.

[0027] 2. The present invention enhances the docking accuracy of metal-based composite materials, and uses a moving component to limit the other two surfaces, which can ensure that the edges of the two groups of materials to be welded are more accurately docked, reduce human operation errors, and improve welding quality and weld stability.

[0028] 3. The present invention simplifies the operation process, combines positioning clamping and docking limit into one step, simplifies the overall operation process, facilitates operation and management by operators, and also reduces the complex requirements for equipment synchronization and coordination.

[0029] 4. The present invention can further expand the scope of application. This new device design can adapt to metal-based materials of different shapes and sizes that need to be welded, enhancing the applicability and flexibility of the equipment, so that it can be used in more diverse application scenarios.

[0030] 5. The present invention improves safety, reduces manual intervention and repeated operations, and reduces safety risks for operators when handling complex materials. At the same time, the automated limit and docking process can also ensure the safety of equipment operation.

[0031] 6. The present invention drives two groups of first screw rods to rotate simultaneously through a dual-axis motor, so that it can drive the movable block threadedly connected thereto to move, thereby driving the two groups of bar frames to move toward each other to approach the two groups of metal-based materials to be welded. At the same time, by utilizing the hinged effect between the bar frame and the movable block and the connecting rod, and the movable coordination between the movable block and the bar frame, the two groups of bar frames can push the two groups of movable blocks to move toward each other at the same time when moving toward each other, and the movement of the movable block drives the clamping block to move together, so that the two groups of metal-based materials can be automatically positioned, docked and clamped, thereby effectively improving the welding efficiency of the metal-based materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a top view of the three-dimensional structure of the present invention; Figure 2 This is a bottom-up three-dimensional structural schematic diagram of the positioning and clamping assembly of the present invention; Figure 3 It is a three-dimensional schematic diagram of the movable block and the clamping block connection structure of the present invention.

[0033] In the accompanying drawings, the components represented by each number are as follows: 1. welding table; 2. bracket; 3. laser welding machine; 4. second screw rod; 5. slide rail; 6. electric slide; 7. cooling fan; 8. guide block; 101. first screw rod; 102. moving block; 103. bar frame; 104. movable block; 105. clamping block; 106. cross bar; 107. fixed block; 108. spring; 109. connecting rod; 110. anti-slip pad. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0035] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

[0036] Example: Please combine Figure 1-3 , a laser welding device for producing a metal matrix composite material in this embodiment comprises: A welding table 1, a bracket 2 is symmetrically arranged on the top of the welding table 1, a laser welding machine 3 is arranged between two groups of brackets 2, a second movable groove is symmetrically opened on the top of the welding table 1, a second screw rod 4 is rotatably connected inside the second movable groove, and the second screw rod 4 is threadedly connected to the bracket 2 on the same side, and the thread directions of the two groups of second screw rods 4 are arranged in the same direction, a motor is symmetrically fixedly connected to one side of the welding table 1, and the rotor ends of the two groups of motors are coaxially fixedly connected to the two groups of second screw rods 4, respectively, to facilitate the forward and backward movement of the laser welding machine 3, a slide rail 5 is fixedly connected between the two groups of brackets 2, an electric slide 6 is slidably connected to the outside of the slide rail 5, and the electric slide 6 is fixedly connected to the laser welding machine 3, to facilitate the left and right movement of the laser welding machine 3; The positioning and clamping assembly comprises a first movable groove symmetrically opened on the top of the welding table 1, the first movable groove is internally rotatably connected with a first screw rod 101, the external thread of the first screw rod 101 is connected with a movable block 102, the top of the movable block 102 is fixedly connected with a bar frame 103, two groups of movable blocks 104 are arranged on the top of the welding table 1, and the two groups of movable blocks 104 are simultaneously movably connected with the two groups of bar frames 103, a clamping block 105 is arranged on one side of the movable block 104, and the clamping block 105 is simultaneously movably connected with the two groups of bar frames 103, both ends of the clamping block 105 are fixedly connected with a cross bar 106 through a connecting seat, both ends of the movable block 104 are fixedly connected with a fixed block 107, and the fixed block 107 is slidably connected with the cross bar 106 on the same side, and the outer sleeve of the cross bar 106 is provided with an elastic Spring 108, both ends of the spring 108 are fixedly connected to the connecting seat and the fixed block 107 respectively, a connecting rod 109 is hinged between the bar frame 103 and the movable block 104 through a hinge, a dual-axis motor is coaxially fixedly connected between the two groups of first screw rods 101, and the thread directions of the two groups of first screw rods 101 are oppositely set. The bottom of the bar frame 103 is symmetrically fixedly connected with the guide block 8, and a guide groove is provided at the top of the welding table 1 corresponding to the position of the guide block 8 and is slidably connected with the guide block 8, which can play a certain guiding role in the horizontal movement of the bar frame 103. The opposite surfaces of the two groups of clamping blocks 105 are provided with anti-slip pads 110, which can increase the friction and play an anti-slip role. The end of the cross bar 106 is fixedly connected to the limiting plate to prevent the cross bar 106 from detaching from the fixed block 107.

[0037] The implementation principle of a laser welding device for producing metal-based composite materials in the embodiment of the present application is as follows: first, two groups of metal-based materials to be welded are placed on the welding table 1 together, and then the dual-axis motor is started, and the two groups of first screw rods 101 are driven to rotate simultaneously by the dual-axis motor, so that the movable block 102 threadedly connected thereto can be driven to move, thereby driving the two groups of bar frames 103 to move toward each other at the same time to approach the two groups of metal-based materials to be welded. At the same time, by utilizing the hinged effect between the bar frame 103 and the movable block 104 and the connecting rod 109, the movable cooperation between the movable block 104 and the bar frame 103 enables the two groups of bar frames 103 to push the two groups of movable blocks 104 to move toward each other at the same time when moving toward each other, and the movement of the movable block 104 drives the clamping block 105 to move together, so that the two groups of metal-based materials can be automatically positioned, docked and clamped, effectively improving the welding efficiency of the metal-based materials. After the clamping block 105 first contacts the metal-based material, the sliding cooperation between the cross bar 106 and the fixed block 107 and the elastic effect of the spring 108 are used to make the movable block 104 slide on the cross bar 106 and squeeze the spring 108, so that the two groups of bar frames 103 can continue to move until they contact the metal-based material, thereby achieving the purpose of buffering, and then start the laser welding machine 3 to weld the joints of the two groups of metal bases, and drive the two groups of second screw rods 4 to rotate at the same time through two groups of motors, so that the two groups of brackets 2 can be driven to move forward and backward together, thereby driving the laser welding machine 3 to move forward and backward to ensure the thoroughness of the welding of the joints, and the sliding cooperation between the electric slide 6 and the slide rail 5 can drive the laser welding machine 3 to move left and right according to the required welding position, thereby improving the applicability of the device, and finally control the dual-axis motor to reverse to release the metal-based material, and then take it away.

[0038] In addition, a further improvement is that cooling fans 7 are fixedly connected to the lower parts of the opposite surfaces of the two groups of brackets 2 to facilitate cooling of the welded metal-based materials.

[0039] The cooling fan 7 is an existing fan with a cooling function. The fan housing is usually made of metal or high-strength plastic, has good heat resistance and mechanical strength, and the cooling fan 7 has a motor to drive the fan blades to rotate and generate airflow. Some cooling fans may be equipped with a radiator to increase the heat dissipation efficiency and cool the metal-based material faster by increasing the air flow and heat exchange rate.

[0040] In addition, the same or similar element symbols are used to refer to the same or similar parts or steps in the drawings and descriptions as much as possible. The drawings are presented in simplified form and are not drawn to exact scale. For convenience and clarity only, directional terms such as top, bottom, left, right, upward, above, above, below, below, behind, and in front may be used with respect to the drawings. These and similar directional terms should not be construed as limiting the scope of the present disclosure in any way.

Claims

1. A laser welding device for producing metal matrix composite materials, characterized in that: include: A welding table (1), wherein a bracket (2) is arranged on the top of the welding table (1), and a laser welding machine (3) is arranged on the bracket (2); A positioning clamping assembly, slidably arranged on the welding table (1), and used to clamp and align two sets of materials to be welded; The positioning and clamping assembly comprises a clamping block assembly for clamping the material to be welded, and two groups of the clamping block assemblies are provided; The positioning clamping assembly also includes a moving assembly which is slidably arranged on the welding table (1) and is used to simultaneously move the two sets of clamping block assemblies closer to the material to be welded and simultaneously abut against the material to be welded.

2. A laser welding device for producing metal matrix composite materials according to claim 1, characterized in that: The clamp block assembly comprises a clamp block (105) and a buffer assembly arranged on the clamp block (105).

3. A laser welding device for producing metal matrix composite materials according to claim 2, characterized in that: The buffer assembly comprises a cross bar (106) fixedly connected to the clamping block (105) via a connecting seat, a fixed block (107) slidably connected to the cross bar (106), a movable block (104) arranged on the fixed block (107), and a spring (108) sleeved on the cross bar (106); Two ends of the spring (108) respectively abut against the connecting seat and the fixing block (107).

4. The laser welding device for producing metal matrix composite materials according to claim 1, characterized in that: The welding table (1) is provided with a first movable groove at the top; the movable assembly comprises a first screw rod (101) rotatably connected to the inner side of the first movable groove, a movable block (102) threadedly connected to the first screw rod (101), a strip frame (103) arranged on the movable block (102) and used to abut against a material to be welded, and a connecting rod (109) hinged between the strip frame (103) and the movable block (104).

5. The laser welding device for producing metal matrix composite materials according to claim 4, characterized in that: The top of the welding table (1) is also provided with a guide groove; the moving assembly also includes a guide block (8) arranged on the bar frame (103) and slidably arranged in the guide groove.

6. The laser welding device for producing metal matrix composite materials according to claim 1, characterized in that: The clamping block (105) is provided with an anti-slip pad (110) for clamping the material to be welded.

7. The laser welding device for producing metal matrix composite materials according to claim 1, characterized in that: The welding table (1) is also provided with a second movable groove, the interior of the second movable groove is rotatably connected to a second screw rod (4), and the second screw rod (4) is threadedly connected to a screw hole preset on the bracket (2); the welding table (1) is fixedly connected to a motor, and the rotor end of the motor is coaxially fixedly connected to the second screw rod (4).

8. The laser welding device for producing metal matrix composite materials according to claim 1, characterized in that: The bracket (2) is fixedly connected to a slide rail (5), the slide rail (5) is slidably connected to an electric slide table (6), and the electric slide table (6) is fixedly connected to the laser welding machine (3).

9. The laser welding device for producing metal matrix composite materials according to claim 1, characterized in that: A cooling fan (7) is fixedly connected to the bracket (2).

10. The laser welding device for producing metal matrix composite materials according to claim 3, characterized in that: The end of the cross bar (106) is fixedly connected with a limiting plate for abutting against the fixing block (107).

Images