Resistor laser welding equipment

Abstract

The invention discloses resistance part laser welding equipment, and belongs to the field of laser cutting, the resistance part laser welding equipment comprises a base, and a laser welding gun is arranged at the upper end of the base; the upper end of the base is fixedly connected with a motor, the output end of the motor is fixedly connected with a transmission shaft, the outer wall of the transmission shaft is fixedly sleeved with a worm, the two sides of the worm are meshed with worm wheels, the outer walls of the worm wheels are fixedly connected with a rotating shaft A, and the other end of the rotating shaft A is fixedly connected with a swing rod. By arranging the worm, the worm gear, the rotating shaft and other transmission systems, the movement path of the bending plate is very stable, and it is ensured that the resistor part can be accurately bent. The design of the annular frame enables the movement track of the sliding sleeve to be more accurate, the rotation stability of the bending plate can be guaranteed, meanwhile, the bending plate can ensure that the resistor piece is well centered before being bent, and uneven bending or problems at a welding joint caused by dislocation or deviation are avoided.

Description

Technical Field

[0001] This application relates to the field of laser cutting, and more particularly, to a laser welding device for resistors. Background Art

[0002] Resistors are a type of electronic component, and their main function is to limit the flow of current and regulate the voltage in a circuit. They control the magnitude of the current by providing a certain resistance value, in accordance with Ohm's law.

[0003] As disclosed in Chinese Patent Publication No. CN117139846B, the technical solution disclosed in this patent document is as follows: A laser welding device for resistors, which includes: a machine base, a main body feeding device, a lead feeding device, a laser welding device, an auxiliary steering device, and a bending device; the main body feeding device is disposed on one side of the lead feeding device, and the laser welding device is disposed between the main body feeding device and the lead feeding device. The lead feeding device is provided with a slide table and a robotic arm, the slide table drives the robotic arm to move, and the robotic arm is used to carry resistors. The auxiliary steering device and the bending device are disposed on the machine base, the auxiliary steering device is used to turn the resistor, and the bending device is used to bend the resistor. This laser welding device for resistors with a bending function can automatically perform a bending operation on the resistor after laser welding, thus reducing the burden on workers and improving production efficiency.

[0004] In the above laser welding device, the holding member and the sliding rod are connected by magnetic attraction. Although this method can simplify the structure, the magnetic force may change due to external factors (such as temperature, magnetic field interference, etc.) during operation, resulting in the holding member not accurately contacting the resistor, thereby affecting the clamping force and possibly causing deviation or instability when the resistor is bent. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a laser welding device for resistors, which solves the problems raised in the above background art.

[0006] To achieve the above object, the present application provides a laser welding device for resistors, including a base, and a laser welding gun is provided at the upper end of the base; A motor is fixedly connected to the upper end of the base, a transmission shaft is fixedly connected to the output end of the motor, a worm is fixedly sleeved on the outer wall of the transmission shaft, two worm wheels are meshed with both sides of the worm, a rotating shaft A is fixedly connected to the outer wall of the worm wheel, a swing rod is fixedly connected to the other end of the rotating shaft A, a chute A is opened in the middle of the swing rod, a connecting shaft is slidably connected inside the chute A, a bending plate is fixedly sleeved on the outer wall of the connecting shaft, and a sliding sleeve is rotatably connected to the other end of the connecting shaft; A fixing plate is fixedly connected to the upper end of the base, a placing plate is fixedly connected to the middle of the fixing plate, bending plates are hinged to both sides of the placing plate, a material pushing and positioning assembly is assembled on the outer wall of the fixing plate, and a material discharging assembly is assembled on the upper end of the placing plate.

[0007] Preferably, a circular frame is fixedly connected to the front surface of the fixing plate, and the sliding sleeve is slidably connected to the outer wall of the circular frame.

[0008] Preferably, a through groove is formed in the middle of the bending plate, and the width of the through groove is greater than the diameter of the pin of the resistor component.

[0009] Preferably, the material pushing and positioning assembly includes a connecting block A, the connecting block A is fixedly connected to the outer wall of the fixing plate, a hydraulic chamber is fixedly connected to the side surface of the fixing plate through the connecting block A, a hydraulic rod A and a hydraulic rod B are respectively slidably connected to the two ports of the hydraulic chamber, a spherical ball is fixedly connected to the top of the hydraulic rod A, a spring A is movably sleeved on the outer wall of the hydraulic rod A, and two ends of the spring A are respectively fixedly connected to the spherical ball and the hydraulic chamber. The other end of the hydraulic rod B is fixedly connected with a U-shaped pushing block, a connecting block B is fixedly sleeved on the outer wall of the hydraulic rod B, a connecting rod is fixedly connected to the upper end of the connecting block B, the other end of the connecting rod is fixedly connected with a moving block A, an installation plate is fixedly connected to the outer wall of the fixing plate, a through hole is formed in the outer wall of the installation plate, a moving rod is slidably connected to the inside of the through hole, a moving block B is fixedly connected to the top of the moving rod, a spring B is movably sleeved on the outer wall of the moving rod, and two ends of the spring B are respectively fixedly connected to the moving block B and the installation plate. The moving rod is fixedly connected with a U-shaped plate, and rollers are arranged on the inner side of the U-shaped plate.

[0010] Preferably, inclined surfaces are arranged on the sides of the moving block A and the moving block B close to each other.

[0011] Preferably, a chute B is formed in the upper end of the placing plate, and the U-shaped pushing block is slidably connected to the inside of the chute B.

[0012] Preferably, the material discharging assembly includes two installation blocks, a rotating shaft B is rotatably connected between the two installation blocks, an L-shaped plate is fixedly sleeved on the outer wall of the rotating shaft B, a torsion spring is movably sleeved on the outer wall of the rotating shaft B, and two ends of the torsion spring are respectively fixedly connected to the installation block and the L-shaped plate. An active rod is fixedly connected to the bottom of the L-shaped plate, and an elastic telescopic rod is fixedly connected to the outer wall of the U-shaped pushing block.

[0013] Preferably, a groove is formed at the bottom end inside the chute B, an activity groove is formed in the bottom of the placing plate, the active rod movably penetrates through the activity groove, a connecting plate is fixedly connected to the outer wall of the fixing plate, and a laser welding gun is fixedly connected to the bottom of the connecting plate.

[0014] The advantages of the present application are as follows: (1) By setting up a transmission system such as a worm, a worm gear and a rotating shaft, the movement path of the bending plate is very stable, ensuring that the resistor can be accurately bent. The design of the annular frame makes the moving track of the sliding sleeve more precise, which helps to ensure the rotational stability of the bending plate. At the same time, the bending plate can ensure that the resistor is well centered before bending, avoiding uneven bending or problems at the welding joint caused by misalignment or deviation.

[0015] (2) The pushing and positioning components of the present application adopt a hydraulic system, equipped with structures such as hydraulic rods A, B and a C-shaped pushing block, which can accurately push the resistor, ensure that the resistor is pushed to the designated position after welding, and at the same time can play a role in limiting the resistor, thereby maintaining a stable position and avoiding errors caused by inaccurate positioning.

[0016] (3) The stripping component of the present application can achieve efficient stripping of the resistor through the design of the L-shaped plate and the movable rod. Especially after bending is completed, through the coordinated action of the elastic telescopic rod and the torsion spring, the bent resistor can be smoothly pushed out from the placement plate, avoiding blockage during the stripping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings forming a part of this application are used to provide a further understanding of the application, making other features, objects and advantages of the application more obvious. The schematic embodiments and descriptions of the application are used to explain the application and do not constitute an improper limitation of the application. In the drawings: Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic top view structure of the present invention; Figure 3 is a schematic perspective structure of a part of the present invention; Figure 4 is of the present invention Figure 1 enlarged schematic structure at A in; Figure 5 is of the present invention Figure 3 enlarged schematic structure at B in; Figure 6 is a schematic sectional structure of a part of the present invention; Figure 7 is of the present invention Figure 6 enlarged schematic structure at C in.

[0018] In the above figures, 1 is the base; 2 is the fixed plate; 3 is the laser welding gun; 41 is the motor; 42 is the transmission shaft; 43 is the worm; 44 is the worm gear; 45 is the rotating shaft A; 46 is the swing rod; 47 is the chute A; 48 is the connecting shaft; 49 is the bending plate; 410 is the annular frame; 411 is the sliding sleeve; 412 is the through groove; 5 is the placing plate; 6 is the material pushing and positioning assembly; 61 is the connecting block A; 62 is the hydraulic chamber; 63 is the hydraulic rod A; 64 is the spherical ball; 65 is the spring A; 66 is the hydraulic rod B; 67 is the U-shaped pushing block; 68 is the connecting block B; 69 is the connecting rod; 610 is the moving block A; 611 is the mounting plate; 612 is the moving rod; 613 is the moving block B; 614 is the spring B; 615 is the roller; 616 is the chute B; 617 is the U-shaped plate; 7 is the material discharging assembly; 71 is the mounting block; 72 is the rotating shaft B; 73 is the L-shaped plate; 74 is the torsion spring; 75 is the groove; 76 is the movable rod; 77 is the elastic telescopic rod; 78 is the movable groove; 8 is the connecting plate. Detailed implementation manner

[0019] In order to enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0020] It should be noted that the terms "first", "second", etc. in the description and claims of this application and the above accompanying drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to describe the embodiments of this application here. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0021] In this application, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly used to better describe this application and its embodiments, and are not used to limit that the indicated device, element or component must have a specific orientation, or be constructed and operated in a specific orientation.

[0022] Moreover, in addition to being used to indicate orientation or positional relationship, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0023] In addition, the terms "installed", "set up", "provided with", "connected", "linked", "socketed" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral structure; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, or there may be internal communication between two devices, components or parts. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0024] It should be noted that, without conflict, the embodiments and features in the embodiments of this application may be combined with each other. The following will refer to the accompanying drawings and combine with embodiments to detail this application.

[0025] Example 1: Refer to Figures 1 - 4, a laser welding device for resistors, comprising a base 1. A laser welding gun 3 is provided at the upper end of the base 1. The laser welding gun 3 is responsible for the laser welding operation of the resistor, usually used for precise welding operations. It cooperates with the control system during the welding process to heat and melt and weld the joint part of the resistor; A motor 41 is fixedly connected to the upper end of the base 1. The output end of the motor 41 is fixedly connected to a transmission shaft 42. A worm 43 is fixedly sleeved on the outer wall of the transmission shaft 42. Two worm wheels 44 are engaged with both sides of the worm 43. A rotating shaft A45 is fixedly connected to the outer wall of the worm wheel 44. The other end of the rotating shaft A45 is fixedly connected to a swing rod 46. A chute A47 is provided in the middle of the swing rod 46. A connecting shaft 48 is slidably connected inside the chute A47. A bending plate 49 is fixedly sleeved on the outer wall of the connecting shaft 48. When the bending plate 49 rotates to be perpendicular to the placement plate 5, the distance between its inner side and the U-shaped plate 617 is the same as the thickness of the resistor. The other end of the connecting shaft 48 is rotatably connected to a sliding sleeve 411; A fixing plate 2 is fixedly connected to the upper end of the base 1. A placement plate 5 is fixedly connected to the middle of the fixing plate 2. The bending plate 49 is hinged on both sides of the placement plate 5. A material pushing and positioning assembly 6 is assembled on the outer wall of the fixing plate 2. A material discharging assembly 7 is assembled on the upper end of the placement plate 5. The function of the material discharging assembly 7 is to complete the material discharging action after the resistor is welded and bent. A circular frame 410 is fixedly connected to the front of the fixing plate 2. The sliding sleeve 411 is slidably connected to the outer wall of the circular frame 410. The circular frame 410 provides a moving track for the sliding sleeve 411, and thus can ensure the rotation stability of the bending plate 49. A through groove 412 is provided in the middle of the bending plate 49. The width of the through groove 412 is greater than the diameter of the resistor lead. Thus, when the bending plate 49 bends the resistor, the leads on both sides of the resistor will pass through the through groove 412, avoiding damage to the leads during the bending process.

[0026] In use, the motor 41 is started to drive the transmission shaft 42 to rotate. Then, the worm 43 fixedly sleeved outside the transmission shaft 42 will rotate accordingly. Then, the worm gear 44 engaged with it will rotate accordingly. Further, the worm gear 44 will drive the swing rods 46 on both sides to rotate inward simultaneously through the rotating shaft A 45. Then, while the connecting shaft 48 slides inside the chute A 47, it can drive the sliding sleeve 411 to slide on the outer wall of the annular frame 410 through the connecting shaft 48. At the same time, the bending plate 49 can be rotated around the hinge point with the placing plate 5. When the bending plate 49 rotates to be parallel to the placing plate 5, at this time, the pushing and positioning component 6 has pushed the welded resistor to the middle of the bending plate 49 and fixed the resistor. At this time, when the bending plate 49 continues to rotate inward along with the connecting shaft 48 and the sliding sleeve 411, it will contact the side surface of the resistor. After one side of the bending plate 49 contacts the resistor, since the upper end of the resistor is restricted by the roller 615, the bending plate 49 will push the resistor to move to the other side until both sides of the resistor contact the bending plate 49. Then, the bending plate 49 continues to rotate inward, and thus the bending of the resistor can be realized. Until the bending plate 49 is perpendicular to the placing plate 5, the upper end of the resistor can contact both sides of the U-shaped plate 617, and the resistor can be bent into a U shape. And because a through groove 412 is formed in the middle of the bending plate 49, when the bending plate 49 is bent, the leads on both sides of the resistor will not be affected.

[0027] Embodiment 2: Refer to Figures 1 - 6, the material pushing and positioning assembly 6 includes a connecting block A61. The connecting block A61 is fixedly connected to the outer wall of the fixed plate 2. The side of the fixed plate 2 is fixedly connected with a hydraulic chamber 62 through the connecting block A61. A hydraulic rod A63 and a hydraulic rod B66 are respectively slidably connected to the two ports of the hydraulic chamber 62. A ball 64 is fixedly connected to the top of the hydraulic rod A63. A spring A65 is movably sleeved on the outer wall of the hydraulic rod A63. The two ends of the spring A65 are respectively fixedly connected to the ball 64 and the hydraulic chamber 62. The other end of the hydraulic rod B66 is fixedly connected with a U-shaped pushing block 67. A connecting block B68 is fixedly sleeved on the outer wall of the hydraulic rod B66. A connecting rod 69 is fixedly connected to the upper end of the connecting block B68. The other end of the connecting rod 69 is fixedly connected with a moving block A610. An installation plate 611 is fixedly connected to the outer wall of the fixed plate 2. A through hole is formed in the outer wall of the installation plate 611. A moving rod 612 is slidably connected to the inside of the through hole. A moving block B613 is fixedly connected to the top of the moving rod 612. A spring B614 is movably sleeved on the outer wall of the moving rod 612. The two ends of the spring B614 are respectively fixedly connected to the moving block B613 and the installation plate 611. The moving rod 612 is fixedly connected with a U-shaped plate 617. A roller 615 is arranged inside the U-shaped plate 617. An inclined surface is arranged on the side of the moving block A610 close to the moving block B613. Thus, when the moving block A610 contacts the moving block B613, under the action of the inclined surface, the moving block A610 will push the moving block B613 to move downward. A chute B616 is formed in the upper end of the placing plate 5. The U-shaped pushing block 67 is slidably connected to the inside of the chute B616, which can ensure the stability of the sliding of the U-shaped pushing block 67.

[0028] During use, first place the resistor on the upper end of the placement plate 5, and then perform laser welding with the laser welding gun 3. When the swing rod 46 rotates inward, it will push the spherical ball 64 in contact with it upward. When the spherical ball 64 rises, it will drive the hydraulic rod A63 upward. Then, the hydraulic rod B66 slidably connected inside the other port of the hydraulic chamber 62 will move forward, and thus can push the U-shaped push block 67 to move forward inside the chute B616, and then can push the resistor through the through groove 412 to move to the middle of the bending plate 49. When the bending plate 49 rotates to be parallel to the placement plate 5, the front end of the resistor also fits against the inner side of the L-shaped plate 73. When the hydraulic rod B66 moves forward, it will drive the connecting rod 69 to move forward through the connecting block B68. Then, the moving block A610 at the other end of the connecting rod 69 will also move forward. When the moving block A610 contacts the moving block B613, the contacting surfaces of the moving block A610 and the moving block B613 are both set as inclined surfaces. Therefore, when the moving block A610 continues to move forward, it will push the moving block B613 to compress the spring B614 and move downward, and then the moving rod 612 will also move downward. Then, the U-shaped plate 617 fixedly connected to the bottom of the moving rod 612 will also move downward. When the moving block A610 moves to the upper end of the moving block B613, the roller 615 inside the U-shaped plate 617 will contact the surface of the resistor, so as to realize the upper and lower position limiting of the resistor. After the bending is completed, when the swing rod 46 rotates outward, under the action of the spring A65, it will drive the hydraulic rod A63 to move downward, so that it always contacts the surface of the swing rod 46, and then will drive the hydraulic rod B66 to move backward, so as to drive the U-shaped push block 67 back to the rear end of the laser welding gun 3. At the same time, the connecting block B68 will drive the moving block A610 to move backward through the connecting rod 69. Then, since the moving block A610 releases the restriction on the moving block B613, under the action of the spring B614, it will drive the moving rod 612 to rise, so as to drive the U-shaped plate 617 and the roller 615 to rise.

[0029] Embodiment 3: Refer to Figures 1 - 7 , the blanking assembly 7 includes two mounting blocks 71, a rotating shaft B72 is rotatably connected between the two mounting blocks 71, an L-shaped plate 73 is fixedly sleeved on the outer wall of the rotating shaft B72, a torsion spring 74 is movably sleeved on the outer wall of the rotating shaft B72, and the two ends of the torsion spring 74 are respectively fixedly connected to the mounting block 71 and the L-shaped plate 73. The bottom of the L-shaped plate 73 is fixedly connected with a movable rod 76, and an elastic telescopic rod 77 is fixedly connected to the outer wall of the U-shaped push block 67. A groove 75 is opened at the inner bottom end of the chute B616, a movable groove 78 is opened at the bottom of the placement plate 5, the movable rod 76 movably penetrates through the movable groove 78, a connecting plate 8 is fixedly connected to the outer wall of the fixing plate 2, and the laser welding gun 3 is fixedly connected to the bottom of the connecting plate 8.

[0030] During use, when the U-shaped pushing block 67 moves forward along the chute B616, the elastic telescopic rod 77 on its front surface will first contact the movable rod 76 at the bottom of the L-shaped plate 73. Since the elastic force of the elastic telescopic rod 77 is greater than that of the torsion spring 74, the elastic telescopic rod 77 will push the movable rod 76 to rotate. Then, the L-shaped plate 73 will rotate along with the rotating shaft B72. When the inner side of the L-shaped plate 73 rotates to contact the placement plate 5, at this time, the L-shaped plate 73 cannot rotate anymore. Then, when the U-shaped pushing block 67 continues to move, the elastic telescopic rod 77 will contract. Since the bottom of the L-shaped plate 73 is perpendicular to the placement plate 5, the resistor component can be pushed to the upper end of the L-shaped plate 73. Furthermore, the inner side of the L-shaped plate 73 can also restrict the front end of the resistor component. After the bending is completed, the U-shaped pushing block 67 resets, and then the elastic telescopic rod 77 at its bottom end will also release the restriction on the movable rod 76. Then, the torsion spring 74 will cause the rotating shaft B72 to rotate, and then the L-shaped plate 73 will also rotate outward. Then, the bottom of the L-shaped plate 73 will push the bent resistor component off the upper end of the placement plate 5, and thus the blanking of the resistor component can be realized.

[0031] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A laser welding device for a resistor component, comprising a base, characterized in that, A laser welding gun is provided at the upper end of the base. A motor is fixedly connected to the upper end of the base. The output end of the motor is fixedly connected to a transmission shaft. A worm is fixedly sleeved on the outer wall of the transmission shaft. Two worm wheels are meshed with both sides of the worm. A rotating shaft A is fixedly connected to the outer wall of the worm wheel. The other end of the rotating shaft A is fixedly connected to a swing rod. A chute A is opened in the middle of the swing rod. A connecting shaft is slidably connected inside the chute A. A bending plate is fixedly sleeved on the outer wall of the connecting shaft. The other end of the connecting shaft is rotatably connected to a sliding sleeve. A fixing plate is fixedly connected to the upper end of the base. A placing plate is fixedly connected to the middle of the fixing plate. The bending plates are hinged to both sides of the placing plate. A material pushing and positioning component is assembled on the outer wall of the fixing plate. A material discharging component is assembled on the upper end of the placing plate. A connecting plate is fixedly connected to the outer wall of the fixing plate. The laser welding gun is fixedly connected to the bottom of the connecting plate.

2. The laser welding device for a resistor according to claim 1, characterized in that, An annular frame is fixedly connected to the front of the fixing plate. The sliding sleeve is slidably connected to the outer wall of the annular frame.

3. The laser welding device for a resistor according to claim 1, characterized in that, A through groove is opened in the middle of the bending plate. The width of the through groove is greater than the diameter of the pin of the resistor component.

4. A laser welding device for a resistor component according to claim 1, wherein The material pushing and positioning component includes a connecting block A. The connecting block A is fixedly connected to the outer wall of the fixing plate. A hydraulic chamber is fixedly connected to the side of the fixing plate through the connecting block A. A hydraulic rod A and a hydraulic rod B are respectively slidably connected inside the two ports of the hydraulic chamber. A sphere is fixedly connected to the top of the hydraulic rod A. A spring A is movably sleeved on the outer wall of the hydraulic rod A. The two ends of the spring A are respectively fixedly connected to the sphere and the hydraulic chamber. A U-shaped pushing block is fixedly connected to the other end of the hydraulic rod B. A connecting block B is fixedly sleeved on the outer wall of the hydraulic rod B. A connecting rod is fixedly connected to the upper end of the connecting block B. A moving block A is fixedly connected to the other end of the connecting rod. An installation plate is fixedly connected to the outer wall of the fixing plate. A through hole is opened in the outer wall of the installation plate. A moving rod is slidably connected inside the through hole. A moving block B is fixedly connected to the top of the moving rod. A spring B is movably sleeved on the outer wall of the moving rod. The two ends of the spring B are respectively fixedly connected to the moving block B and the installation plate. The moving rod is fixedly connected to a U-shaped plate. A roller is arranged inside the U-shaped plate.

5. A laser welding device for a resistor component according to claim 4, characterized in that, An inclined surface is arranged on the side of the moving block A close to the moving block B.

6. The laser welding device for a resistor according to claim 5, characterized in that, A chute B is opened on the upper end of the placing plate. The U-shaped pushing block is slidably connected inside the chute B.

7. The laser welding device for a resistor according to claim 6, characterized in that, The material discharging component includes two installation blocks. A rotating shaft B is rotatably connected between the two installation blocks. An L-shaped plate is fixedly sleeved on the outer wall of the rotating shaft B. A torsion spring is movably sleeved on the outer wall of the rotating shaft B. The two ends of the torsion spring are respectively fixedly connected to the installation block and the L-shaped plate. A movable rod is fixedly connected to the bottom of the L-shaped plate. An elastic telescopic rod is fixedly connected to the outer wall of the U-shaped pushing block.

8. A laser welding device for a resistor component according to claim 7, characterized in that, A groove is opened at the bottom end inside the chute B. An activity groove is opened at the bottom of the placing plate. The movable rod movably penetrates through the activity groove. A connecting plate is fixedly connected to the outer wall of the fixing plate.

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