Laser welding machine pressing mechanism with displacement sensing

Abstract

The utility model embodiment provides a kind of laser welding machine pressure mechanism with displacement sensing, it is related to valve cover welding technical field.The laser welding machine pressure mechanism with displacement sensing, including laser welding machine body, the top of laser welding machine body is equipped with pressure assembly, the pressure assembly includes installation frame, the inboard fixedly connected with fixed plate of installation frame, the inboard fixedly connected with cylinder of fixed plate, the output end fixedly connected with pressure sensor of cylinder.This technique is by being equipped with pressure assembly, not only realizes the stable down pressure and accurate positioning of valve cover assembly in the welding process, ensure that workpiece does not occur in the welding process or slack, to improve welding accuracy and consistency.Meanwhile, the component also has the function of real-time display down pressure in the process of pressure, it is convenient for operator to monitor pressure value, ensure that each welding is in the range of set process parameter.

Description

Technical Field

[0001] This utility model relates to the field of valve cover welding technology, and in particular to a laser welding machine clamping mechanism with displacement sensing. Background Technology

[0002] A valve cover assembly laser welding machine is a specialized device for welding valve cover assemblies. It utilizes a high-energy-density laser beam as a heat source, focusing it onto the material surface to perform the welding operation. In the valve manufacturing industry, the quality of the valve cover assembly directly affects the sealing performance and safety of the entire valve. Therefore, employing laser welding technology not only improves product quality but also enhances its service life and reliability. The selection and application of a laser welding machine are crucial for ensuring high-quality welding of valve cover assemblies.

[0003] Existing laser welding machines for valve cover assemblies sometimes start welding before the set pressure is reached, or weld when the pressure plate has been reset but no effective pressure is applied to the workpiece. This leads to unstable weld quality. Such problems easily cause defects such as uneven welds, insufficient bond strength, and poor sealing performance, seriously affecting product yield and safety. Furthermore, the lack of real-time monitoring and feedback control of the pressure-fitting status makes it difficult to stop the welding process in time under abnormal conditions, further increasing the risk of batch defects and making the machine inconvenient to use. Utility Model Content

[0004] The purpose of this invention is to provide a laser welding machine clamping mechanism with displacement sensing. This mechanism avoids common problems in existing valve cover assembly laser welding machines, such as insufficient clamping force or welding continuing even after the pressure plate has reset. These issues lead to uneven welds and insufficient bonding strength, affecting product quality and safety. Furthermore, the lack of real-time monitoring and feedback on the clamping status makes it difficult to identify abnormalities promptly, increasing the risk of batch defects and making the machine inconvenient and unreliable to use.

[0005] This utility model provides a laser welding machine clamping mechanism with displacement sensing, including a laser welding machine body, a clamping assembly on the top of the laser welding machine body, the clamping assembly including a mounting frame, a fixing plate fixedly connected to the inner side of the mounting frame, a cylinder fixedly connected to the inner side of the fixing plate, a pressure sensor fixedly connected to the output end of the cylinder, a first pressure plate fixedly connected to the top of the pressure sensor, a connecting rod fixedly connected to the top of the first pressure plate, and the top end of the connecting rod extending through to the top of the mounting frame and fixedly connected to a second pressure plate.

[0006] In one specific implementation, a placement block is fixedly connected to the top of the mounting frame, and a valve cover component is mounted on the top of the placement block.

[0007] In one specific implementation, a welding cavity is provided on the top of the second pressure plate, and a connecting plate is fixedly connected to the inner side of the mounting frame.

[0008] In one specific implementation, a displacement sensor is installed on the inner side of the connecting plate, and the surface of the displacement sensor is used in conjunction with the bottom of the first pressure plate.

[0009] In one specific implementation, a display device is fixedly connected to the right side of the mounting frame, and a long box is fixedly connected to the front side of the mounting frame.

[0010] In one specific implementation, a motor is fixedly connected to the left side of the long box, and a threaded rod is rotatably connected to the inner cavity of the long box. The output shaft of the motor is fixedly connected to the left end of the threaded rod.

[0011] In one specific implementation, the outer surface of the threaded rod is threaded with a threaded block, and the surface of the threaded block is slidably connected to the inner cavity of the long box.

[0012] In one specific implementation, a storage box is fixedly connected to the top of the threaded block, and an air supply pipe is fixedly connected to the inner cavity of the storage box.

[0013] In one specific implementation, a nozzle is installed on the surface of the gas pipeline, and a placement box is fixedly connected to the right side of the mounting frame.

[0014] In one specific implementation, a vacuum pump is fixedly connected to the inner cavity of the placement box, and a telescopic hose is fixedly connected to the outlet end of the vacuum pump, with one end of the telescopic hose communicating with the surface of the gas delivery pipe.

[0015] The beneficial effects of this application are as follows: By setting up a clamping component, stable pressing and precise positioning of the valve cover assembly are achieved during the welding process, ensuring that the workpiece will not shift or loosen during welding, thereby improving welding accuracy and consistency. Simultaneously, during the clamping process, the component also has the function of displaying the pressing pressure in real time, facilitating operator monitoring of the pressure value and ensuring that each weld is performed within the set process parameter range. This effectively avoids welding defects caused by insufficient pressure or overload, and improves the ease of operation of the equipment. Attached Figure Description

[0016] 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.

[0017] Figure 1This is a three-dimensional schematic diagram of the overall structure of an embodiment of the present utility model;

[0018] Figure 2 This is a three-dimensional schematic diagram of the pressing component structure according to an embodiment of the present utility model;

[0019] Figure 3 This is a three-dimensional schematic diagram of the disassembled structure of the placement box according to an embodiment of the present utility model;

[0020] Figure 4 This is a side view of the mounting frame structure according to an embodiment of the present utility model;

[0021] Figure 5 This is a three-dimensional schematic diagram of the threaded block structure according to an embodiment of the present utility model;

[0022] Figure 6 This is a three-dimensional schematic diagram of the second pressure plate structure according to an embodiment of the present utility model;

[0023] Figure 7 This is a three-dimensional side view sectional view of the long box structure according to an embodiment of the present utility model;

[0024] Figure 8 This is a three-dimensional schematic diagram of the display device structure according to an embodiment of the present utility model.

[0025] Icons: 1. Laser welding machine body; 2. Clamping assembly; 21. Mounting frame; 22. Fixing plate; 23. Cylinder; 24. First pressure plate; 25. Connecting rod; 26. Second pressure plate; 27. Placement block; 28. Valve cover assembly; 29. ​​Welding chamber; 210. Connecting plate; 211. Displacement sensor; 212. Display device; 213. Long box; 214. Motor; 215. Threaded rod; 216. Threaded block; 217. Storage box; 218. Gas pipeline; 219. Nozzle; 220. Placement box; 221. Vacuum pump; 222. Telescopic hose; 223. Pressure sensor. Detailed Implementation

[0026] Existing laser welding machines for valve cover assemblies often experience issues during operation, such as insufficient pressing force or welding continuing even after the pressure plate has reset. This leads to uneven welds and insufficient bonding strength, affecting product quality and safety. Furthermore, the lack of real-time monitoring and feedback on the pressing status makes it difficult to identify abnormalities promptly, increasing the risk of batch defects and compromising usability and reliability. Therefore, the inventors have developed a laser welding machine pressing mechanism with displacement sensing. This mechanism not only achieves stable pressing and precise positioning of the valve cover assembly, ensuring the workpiece does not shift or loosen during welding, but also displays the pressing pressure in real time. This facilitates monitoring operating parameters, prevents welding defects caused by abnormal pressure, improves welding accuracy and ease of operation, and thus solves the aforementioned problems.

[0027] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0028] Please refer to Figures 1 to 8 This utility model provides a laser welding machine clamping mechanism with displacement sensing, including a laser welding machine body 1. A clamping assembly 2 is provided on the top of the laser welding machine body 1. The clamping assembly 2 includes a mounting frame 21, which is bolted to the laser welding machine body 1. A fixing plate 22 is fixedly connected to the inner side of the mounting frame 21, and a cylinder 23 is fixedly connected to the inner side of the fixing plate 22. A pressure sensor 223 is fixedly connected to the output end of the cylinder 23. An extension rod is fixedly connected to the output end of the cylinder 23, and the top end of the extension rod is fixedly connected to the bottom of the pressure sensor 223. A first pressure plate 24 is fixedly connected to the top of the pressure sensor 223, and a connecting rod 25 is fixedly connected to the top of the first pressure plate 24. The top end of the connecting rod 25 extends through to the top of the mounting frame 21 and is fixedly connected to a second pressure plate 26. A placement block 27 is fixedly connected to the top of the mounting frame 21, and the placement block 27 is located on the second pressure plate. Below 26, a valve cover component 28 is installed on the top of the placement block 27, and the top of the valve cover component 28 contacts the bottom of the second pressure plate 26. A welding cavity 29 is opened on the top of the second pressure plate 26, and the diameter of the welding cavity 29 is smaller than that of the top of the valve cover component 28, so as to facilitate the laser welding machine body 1 to weld the top of the valve cover component 28. A connecting plate 210 is fixedly connected to the inner side of the mounting frame 21, and a displacement sensor 211 is installed on the inner side of the connecting plate 210. The surface of the displacement sensor 211 is used in conjunction with the bottom of the first pressure plate 24. A display device 212 is fixedly connected to the right side of the mounting frame 21. The display device 212 is electrically connected to the displacement sensor 211, the pressure sensor 223 and the laser welding machine body 1, so as to facilitate the user to observe the pressing status of the valve cover component 28. A long box 213 is fixedly connected to the front side of the mounting frame 21, and a motor 214 is fixedly connected to the left side of the long box 213.

[0029] Please refer to Figures 2 to 8A threaded rod 215 is rotatably connected to the inner cavity of the long box 213, and the outer surface of the threaded rod 215 is provided with external threads. The output shaft of the motor 214 is fixedly connected to the left end of the threaded rod 215. A threaded block 216 is threadedly connected to the outer surface of the threaded rod 215, wherein the area of ​​the threaded block 216 in contact with the threaded rod 215 is provided with a matching internal thread, and the surface of the threaded block 216 is slidably connected to the inner cavity of the long box 213. A storage box 217 is fixedly connected to the top of the threaded block 216. The shape of 6 is L-shaped, and the front side of the long box 213 has an open mouth body that moves with the threaded block 216. The inner cavity of the storage box 217 is fixedly connected to the gas supply pipe 218. The surface of the gas supply pipe 218 is equipped with a nozzle 219. The right side of the mounting frame 21 is fixedly connected to the placement box 220. The inner cavity of the placement box 220 is fixedly connected to the vacuum pump 221. The outlet end of the vacuum pump 221 is fixedly connected to the telescopic hose 222, and one end of the telescopic hose 222 is connected to the surface of the gas supply pipe 218.

[0030] Specifically, when welding the valve cover component 28, the valve cover component 28 is first placed on the placement block 27, and then the cylinder 23 is activated. The output end of the cylinder 23 pushes the pressure sensor 223, the first pressure plate 24, the connecting rod 25, and the second pressure plate 26 to move synchronously. The first pressure plate 24 contacts the displacement sensor 211 and applies pressure, while the second pressure plate 26 continues to press down to the top of the valve cover component 28, achieving precise press-fitting. During this process, the pressure sensor 223 monitors and records the pressure value in real time and displays it through the display device 212 to facilitate user reminders.

[0031] In summary, the working principle of the laser welding machine clamping mechanism with displacement sensing according to this utility model embodiment is as follows: First, the user presses down and clamps the valve cover component 28 through the clamping assembly 2. After clamping, the laser welding machine body 1 welds the top of the valve cover component 28. After welding, the laser welding machine body 1 operates the welding cavity 29 to complete the high-precision welding of the top of the valve cover component 28. After welding is completed, the motor 214 is started, and the motor 214 drives the threaded rod 215 to rotate. The threaded rod 215 drives the threaded block 216 to move left and right through the thread transmission principle. The threaded block 216 drives the gas pipeline 218, the storage box 217 and the nozzle 219 to move back and forth synchronously, thereby efficiently cleaning the welding slag remaining on the top of the mounting frame 21 through the nozzle 219, improving the convenience of equipment use and cleaning efficiency.

[0032] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this 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 clamping mechanism for a laser welding machine with displacement sensing, characterized in that, The system includes a laser welding machine body (1), and a clamping assembly (2) is provided on the top of the laser welding machine body (1). The clamping assembly (2) includes a mounting frame (21). A fixing plate (22) is fixedly connected to the inner side of the mounting frame (21). A cylinder (23) is fixedly connected to the inner side of the fixing plate (22). A pressure sensor (223) is fixedly connected to the output end of the cylinder (23). A first pressure plate (24) is fixedly connected to the top of the pressure sensor (223). A connecting rod (25) is fixedly connected to the top of the first pressure plate (24). The top end of the connecting rod (25) extends through to the top of the mounting frame (21) and is fixedly connected to a second pressure plate (26).

2. The laser welding machine clamping mechanism with displacement sensing according to claim 1, characterized in that, The top of the mounting frame (21) is fixedly connected to a placement block (27), and a valve cover component (28) is mounted on the top of the placement block (27).

3. The clamping mechanism of a laser welding machine with displacement sensing according to claim 2, characterized in that, The top of the second pressure plate (26) is provided with a welding cavity (29), and a connecting plate (210) is fixedly connected to the inner side of the mounting frame (21).

4. The clamping mechanism of a laser welding machine with displacement sensing according to claim 3, characterized in that, A displacement sensor (211) is installed on the inner side of the connecting plate (210), and the surface of the displacement sensor (211) is used in conjunction with the bottom of the first pressure plate (24).

5. The clamping mechanism of a laser welding machine with displacement sensing according to claim 4, characterized in that, A display device (212) is fixedly connected to the right side of the mounting frame (21), and a long box (213) is fixedly connected to the front side of the mounting frame (21).

6. The clamping mechanism of a laser welding machine with displacement sensing according to claim 5, characterized in that, A motor (214) is fixedly connected to the left side of the long box (213), and a threaded rod (215) is rotatably connected to the inner cavity of the long box (213). The output shaft of the motor (214) is fixedly connected to the left end of the threaded rod (215).

7. The clamping mechanism of a laser welding machine with displacement sensing according to claim 6, characterized in that, The outer surface of the threaded rod (215) is threadedly connected to a threaded block (216), and the surface of the threaded block (216) is slidably connected to the inner cavity of the long box (213).

8. The clamping mechanism of a laser welding machine with displacement sensing according to claim 7, characterized in that, The top of the threaded block (216) is fixedly connected to a storage box (217), and the inner cavity of the storage box (217) is fixedly connected to a gas supply pipe (218).

9. A laser welding machine clamping mechanism with displacement sensing according to claim 8, characterized in that, The surface of the gas pipeline (218) is equipped with a nozzle (219), and a placement box (220) is fixedly connected to the right side of the mounting frame (21).

10. A laser welding machine clamping mechanism with displacement sensing according to claim 9, characterized in that, A vacuum pump (221) is fixedly connected to the inner cavity of the placement box (220). A telescopic hose (222) is fixedly connected to the outlet end of the vacuum pump (221), and one end of the telescopic hose (222) is connected to the surface of the gas supply pipe (218).

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