Linear type low-temperature heat pipe welding machining equipment and using method

Abstract

The invention discloses linear low-temperature heat pipe welding processing equipment which comprises a rack, a low-temperature heat pipe body and a controller, an adjusting module is installed on the rack, a welding gun body and a welding seam self-adaptive tracking module are installed on the adjusting module, and an adjusting mechanism is used for adjusting the position of the welding gun body. The welding seam self-adaptive tracking module is used for conducting three-dimensional scanning and positioning on a to-be-welded seam before welding, automatically correcting the initial position and track of a welding gun body, tracking the welding seam in real time in the welding process, compensating for tiny deviation caused by workpiece clamping or manufacturing tolerance in a self-adaptive mode, and achieving the welding effect. A workpiece fixing module used for clamping a low-temperature heat pipe body is integrated on the rack. The device is reasonable in structural design, heat of a near welding area is rapidly guided away through active temperature difference control, a product main body area is isolated, deviation can be automatically compensated through laser vision three-dimensional positioning and real-time tracking, and the welding path precision is controllable.

Description

Technical Field

[0001] This invention relates to the field of low-temperature heat pipe welding technology, and in particular to a linear low-temperature heat pipe welding processing equipment and its usage method. Background Technology

[0002] Linear cryogenic heat pipes are highly efficient phase change heat transfer elements with a straight tubular structure that operate in the cryogenic / deep cryogenic temperature range (usually ≤0℃, commonly in the liquid nitrogen / liquid oxygen / liquid hydrogen temperature range). They combine the ease of installation of linear structures with the advantages of high thermal conductivity and isothermal properties of cryogenic heat pipes, and are widely used in aerospace, cryogenic refrigeration, superconductivity, electronic cooling and other fields.

[0003] After filling and sealing the vent pipe, linear cryogenic heat pipes require final sealing welding of the end caps or the end of the vent pipe. Currently, manual or semi-automatic argon arc welding is commonly used, which has two major drawbacks: First, the working fluid inside the heat pipe is extremely sensitive to high temperatures, and the concentrated heat input of traditional welding can easily lead to overheating and deterioration of the working fluid, resulting in performance degradation; second, manual operation has poor consistency, unstable weld quality, and high dependence on operator skills, resulting in low production efficiency and becoming a bottleneck for large-scale production. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a linear low-temperature heat pipe welding processing equipment and its usage method. It uses active temperature difference control to quickly conduct heat away from the near welding area and isolate the main body area of ​​the product. Through laser vision three-dimensional positioning and real-time tracking, it can automatically compensate for deviations and control the precision of the welding path.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A linear low-temperature heat pipe welding processing equipment and its usage method include a frame, a low-temperature heat pipe body, and a controller. An adjustment module is installed on the frame, and a welding torch body and a weld seam adaptive tracking module are mounted on the adjustment module. The adjustment mechanism is used to adjust the position of the welding torch body. The weld seam adaptive tracking module is used to perform three-dimensional scanning and positioning of the joint to be welded before welding, automatically correcting the starting position and trajectory of the welding torch body, and tracking the weld seam in real time during welding, adaptively compensating for minor deviations caused by workpiece clamping or manufacturing tolerances. A workpiece fixing module for clamping the low-temperature heat pipe body is integrated on the frame. A temperature control and heat dissipation module is also integrated on the frame. The temperature control and heat dissipation module includes a non-contact temperature measuring unit and a semiconductor cooling ring. The non-contact temperature measuring unit is used to monitor the temperature of the heat pipe near the welding zone in real time, and the semiconductor cooling ring is used to actively and forcibly cool the low-temperature heat pipe body at a set distance from the weld seam.

[0006] Preferably, the adjustment module includes a first slide rail mounted on the frame at the front and rear, a first slider adapted to it being slidably connected in the first slide rail, an L-shaped frame being fixedly connected to the upper end of the first slider, and a first screw threaded through the first slider being rotatably connected in the first slide rail, the first screw being driven to rotate by a first servo motor mounted on the frame.

[0007] Preferably, the L-shaped frame is fitted with a mounting bracket that is slidably connected to it. Two fixing blocks are fixedly connected to the front side wall of the L-shaped frame. A second screw threaded through the mounting bracket is rotatably connected between the two fixing blocks. The second screw is driven to rotate by a second servo motor mounted on the L-shaped frame. A cylinder is installed at the bottom of the mounting bracket. A first drive motor is installed at the telescopic end of the cylinder through a support plate. A support plate is fixedly installed at the end of the drive shaft of the first drive motor. A mounting plate is rotatably connected to the side wall of the support plate. The mounting plate is driven to rotate by a second drive motor mounted on the side wall of the support plate.

[0008] Preferably, the welding torch body is mounted on a mounting plate, and a welding wire feeding tube is also mounted on the welding torch body.

[0009] Preferably, the weld seam adaptive tracking module is mounted on a mounting plate, and the weld seam adaptive tracking module is a laser vision sensor.

[0010] Preferably, the workpiece fixing module includes a fixing platform mounted on a frame. Multiple mounting grooves are arranged in a circular array on the fixing platform. Matching mounting sliders are slidably connected within each of the mounting grooves. Multiple springs connect the mounting sliders to the inner walls of the mounting grooves. Fixing blocks are fixedly mounted on the upper ends of each of the mounting sliders. The fixing blocks are arranged in a triangular pattern and collectively clamp and fix the low-temperature heat pipe body. The workpiece fixing module also includes a drive ring sleeved on the outside of the fixing blocks and abutting against their inclined outer walls. A limiting rod that slides through the drive ring is fixedly connected to the fixing platform. A third servo motor is mounted on the upper end of the fixing platform. A third screw threaded through the drive ring is mounted at the end of the output shaft of the third servo motor.

[0011] Preferably, the non-contact temperature measurement unit is an infrared temperature sensor mounted on a mounting plate.

[0012] Preferably, the semiconductor cooling ring includes a ring body, which is sleeved on the outside of the low-temperature heat pipe body. Two connecting plates are fixedly connected to the bottom of the ring body. An electric telescopic rod is installed at the upper end of the frame. The telescopic end of the electric telescopic rod is fixedly connected to the bottom of one of the connecting plates. A guide rod is fixedly connected to the upper end of the frame. The guide rod slides through the other connecting plate. Multiple pull rods are slidably connected through the ring body. A semiconductor cooling chip is fixedly connected to one end of each pull rod located inside the ring body.

[0013] This invention also discloses a method for using a linear low-temperature heat pipe welding processing equipment, comprising the following steps: S1. After assembling the tube body and end cap of the linear low-temperature heat pipe body, it is fixed on the frame by the workpiece fixing module. S2. Adjust the position of the mounting plate through the adjustment module, start the weld seam adaptive tracking module, and use the laser vision sensor to perform three-dimensional scanning and positioning of the joint between the end cap and the pipe body, and automatically correct the starting position of the welding gun body and the preset trajectory. S3. Start the temperature control and heat dissipation module, monitor the temperature of the low-temperature heat pipe body near the weld in real time through the non-contact temperature measurement unit, and at the same time control the semiconductor cooling ring to force cool the tube body at a set distance from the weld seam. S4. Start the welding torch body to perform welding operations. During the welding process, the laser vision sensor tracks the weld seam in real time and adaptively compensates for minor deviations. The non-contact temperature measurement unit continuously monitors the temperature and provides feedback to adjust the cooling state of the semiconductor cooling ring until the welding is completed.

[0014] S5. After welding is completed, the low-temperature heat pipe body is removed from the workpiece fixing module.

[0015] Compared with the prior art, the beneficial effects of this invention are as follows: 1. In this linear low-temperature heat pipe welding processing equipment, the non-contact temperature measurement unit can monitor the temperature of the linear low-temperature heat pipe near the welding zone in real time, and actively force-cool the tube body of the linear low-temperature heat pipe at a certain distance from the weld seam through the semiconductor cooling ring, forming temperature difference control between the "welding zone" and the "product body zone", ensuring that heat is quickly conducted away and preventing excessive heat transfer to the heat pipe body.

[0016] 2. In this linear low-temperature heat pipe welding processing equipment, a laser vision sensor can perform three-dimensional scanning and positioning of the joint between the end cap and the body of the linear low-temperature heat pipe before welding, automatically correcting the starting position and trajectory of the welding torch body. During the welding process, the laser vision sensor can track the weld seam in real time, adaptively compensating for minor deviations caused by workpiece clamping or manufacturing tolerances, ensuring the accuracy and consistency of the welding path, automating the process, reducing manual intervention, and adapting to large-scale mass production. Attached Figure Description

[0017] Figure 1 This is a first-view three-dimensional structural diagram of a linear low-temperature heat pipe welding processing equipment proposed in this invention; Figure 2 This is a second-view three-dimensional structural diagram of a linear low-temperature heat pipe welding processing equipment proposed in this invention; Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle; Figure 4 This is a structural schematic diagram of the workpiece fixing module; Figure 5 This is a schematic diagram of the structure of a semiconductor cooling ring; Figure 6 This is a schematic diagram of the main plan view of a linear low-temperature heat pipe welding processing equipment proposed in this invention.

[0018] In the diagram: 1. Frame; 2. Adjustment module; 201. First slide rail; 202. First slider; 203. L-shaped frame; 204. First screw; 205. First servo motor; 206. Mounting bracket; 207. Fixing plate; 208. Second screw; 209. Second servo motor; 210. Cylinder; 211. First drive motor; 212. Support plate; 213. Mounting plate; 214. Second drive motor; 3. Welding torch body; 4. Welding wire feed tube; 5. Weld seam adaptive tracking module; 6. 7. Non-contact temperature measurement unit; 701. Workpiece fixing module; 702. Fixing platform; 703. Mounting slide; 704. Fixing block; 705. Spring; 706. Drive ring; 707. Limiting rod; 708. Third servo motor; 709. Third screw; 8. Semiconductor cooling ring; 801. Ring body; 802. Connecting plate; 803. Electric telescopic rod; 804. Guide rod; 805. Pull rod; 806. Semiconductor cooling chip; 9. Low temperature heat pipe body; 10. Controller. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Reference Figures 1-6A linear low-temperature heat pipe welding processing equipment includes a frame 1, a low-temperature heat pipe body 9, and a controller 10. The low-temperature heat pipe body 9 is a linear low-temperature heat pipe. The controller 10 includes a human-machine interface touch screen and a central processing unit. The human-machine interface touch screen and the central processing unit are communicatively connected. The human-machine interface touch screen can display scanned images, welding trajectories, real-time temperature curves, and fault alarm information. It supports custom settings and storage of parameters (such as temperature measurement threshold, cooling power, and tracking sensitivity). The central processing unit is used to control the components in the equipment to perform their work.

[0021] An adjustment module 2 is installed on the frame 1. The adjustment module 2 is equipped with a welding torch body 3 and a weld seam adaptive tracking module 5. The adjustment mechanism 2 is used to adjust the position of the welding torch body 3. The adjustment module 2 includes a first slide rail 201 mounted on the frame 1. A first slider 202 adapted to the first slide rail 201 is slidably connected in the first slide rail 201. An L-shaped frame 203 is fixedly connected to the upper end of the first slider 202. A first screw 204 threaded through the first slider 202 is rotatably connected in the first slide rail 201. The first screw 204 is driven to rotate by a first servo motor 205 mounted on the frame 1. The first servo motor 205 drives the first screw 204 to rotate, which allows the first slider 202 to slide back and forth in the first slide rail 201 under the action of its thread engagement, thereby adjusting the front and rear position of the L-shaped frame 203.

[0022] An mounting bracket 206 is slidably connected to an L-shaped frame 203. Two fixing plates 207 are fixedly connected to the front side wall of the L-shaped frame 203. A second screw 208 threaded through the mounting bracket 206 is rotatably connected between the two fixing plates 207. The second screw 208 is driven to rotate by a second servo motor 209 mounted on the L-shaped frame 203. The second servo motor 209 drives the second screw 208 to rotate, which allows the mounting bracket 206 to move left and right under the action of its thread engagement, thus adjusting its left and right position. A cylinder 210 is installed at the bottom of the mounting bracket 206. A first drive motor 211 is installed at the telescopic end of the cylinder 210 through a support plate. A support plate 212 is fixedly installed at the end of the drive shaft of the first drive motor 211. A mounting plate 213 is rotatably connected to the side wall of the support plate 212. The mounting plate 213 is driven to rotate by a second drive motor 214 mounted on the side wall of the support plate 212.

[0023] The welding torch body 3 is mounted on the mounting plate 213. The adjustment module 2 can adjust the position of the mounting plate 213 on the X, Y, and Z axes, as well as the pitch angle of the mounting plate 213, and can drive the mounting plate 213 to rotate, thereby facilitating the welding work of the welding torch body 3. The welding torch body 3 is also equipped with a wire feeding tube 4. In this application, a TIG welding torch (model WP-18) is used. The wire feeding tube 4 is integrated into the side of the welding torch body 3 (wire feeding speed 0.1-10mm / s, accuracy ±0.05mm / s), and the welding torch body 3 has a built-in water cooling channel to prevent the torch body from being damaged by the high temperature of welding.

[0024] The weld seam adaptive tracking module 5 is used to perform three-dimensional scanning and positioning of the joint to be welded before welding, automatically correct the starting position and trajectory of the welding torch body 3, and track the weld seam in real time during the welding process. It adaptively compensates for minor deviations caused by workpiece clamping or manufacturing tolerances. The weld seam adaptive tracking module 5 is mounted on the mounting plate 213 and is a laser vision sensor. The laser vision sensor model is LV-100, with a laser wavelength of 650nm, power ≤5mW, scanning frequency of 1000Hz, three-dimensional measurement accuracy of ±0.01mm, and the laser vision sensor head is equipped with a dust cover (high temperature resistance ≥200℃).

[0025] The frame 1 integrates a workpiece fixing module 7 for clamping the low-temperature heat pipe body 9. The workpiece fixing module 7 includes a fixing platform 701 mounted on the frame 1. The fixing platform 701 has multiple mounting grooves 702 arranged in a circular array. The mounting slides 703 are slidably connected within the mounting grooves 702. A limiting rod that slides through the mounting slide 703 is fixedly connected between the inner sidewalls of both ends of the mounting grooves 702, allowing the mounting slide 703 to slide back and forth stably within the mounting grooves 702. Multiple springs 705 are connected between the mounting slide 703 and the inner sidewall of the mounting grooves 702. In its natural state, the springs 705 can pull the mounting slide 703 to move away from the axis of the fixing platform 701. A fixing block 704 is fixedly mounted on the upper end of each mounting slide 703. The fixing blocks 704 are arranged in a triangle and work together to clamp and fix the low-temperature heat pipe body 9. Specifically, the fixing block 704 is vertically arranged on the sidewall of the end closest to the low-temperature heat pipe body 9. The side wall of the end away from the low-temperature heat pipe body 9 is inclined. The workpiece fixing module 7 also includes a drive ring 706 sleeved on the outside of multiple fixing blocks 704 and abutting against their inclined outer side wall. A limiting rod 707 that slides through the drive ring 706 is fixedly connected to the fixing platform 701. A third servo motor 708 is installed at the upper end of the fixing platform 701. A third screw 709 that is threaded through the drive ring 706 is installed at the end of the output shaft of the third servo motor 708. The limiting rod 707 and the third screw 709 are located on both sides of the drive ring 706, so that the drive ring 706 can only move vertically. When the third servo motor 708 drives the third screw 709 to rotate, the drive ring 706 can move up and down under its thread engagement. When the drive ring 706 moves upward, it can push the multiple fixing blocks 704 to come closer to each other to clamp and fix the low-temperature heat pipe body 9. When the drive ring 706 moves downward, the spring 705 can pull the fixing blocks 704 away from the low-temperature heat pipe body 9, making it easier to remove the low-temperature heat pipe 9.

[0026] The rack 1 also integrates a temperature control and heat dissipation module, which includes a non-contact temperature measurement unit 6 and a semiconductor cooling ring 8. The non-contact temperature measurement unit 6 is used to monitor the temperature of the heat pipe near the weld in real time, and the semiconductor cooling ring 8 is used to actively and forcibly cool the body of the low-temperature heat pipe 9 at a set distance from the weld.

[0027] The non-contact temperature measurement unit 6 is an infrared temperature sensor mounted on the mounting plate 213. It has a temperature measurement range of 50-500℃, an accuracy of ±1%FS, a response time of ≤10ms, and a lens protective cover with a blow-out interface to prevent welding fume pollution.

[0028] The semiconductor cooling ring 8 includes a ring body 801, which is sleeved on the outside of the low-temperature heat pipe body 9. Two connecting plates 802 are fixedly connected to the bottom of the ring body 801. An electric telescopic rod 803 is installed on the upper end of the frame 1. The telescopic end of the electric telescopic rod 803 is fixedly connected to the bottom of one of the connecting plates 802. A guide rod 804 is fixedly connected to the upper end of the frame 1. The guide rod 804 slides through the other connecting plate 802, providing support and guidance for the ring body 801, allowing it to move up and down. The electric telescopic rod 803 drives the ring body 801 to move up and down via the connecting plate 802, adjusting the height of the ring body 801 to accommodate low-temperature heat pipe bodies 9 of different lengths. Multiple pull rods 805 are slidably connected through the ring body 801. An opening is provided on the ring body 801 for the pull rods 805 to pass through, and the opening is equipped with… The rubber anti-slip pad increases the friction between the pull rod 805 and the ring 801, allowing the pull rod 805 to slide on the ring 801 and hover at any position to adjust the position of the thermoelectric cooler 806. It is compatible with various sizes of low-temperature heat pipe bodies 9 to meet different usage needs. One end of each pull rod 805 located inside the ring 801 is fixedly connected to a thermoelectric cooler 806. The thermoelectric cooler 806 uses a TEC1-12706 thermoelectric cooler with a cooling power of ≥50W and a surface temperature as low as -20℃. A 0.3mm thick thermally conductive silicone pad (thermal conductivity ≥3.0W / (m・K)) is pasted on the inside to dissipate heat from the low-temperature heat pipe body 9. Aluminum heat dissipation fins are installed on the outside. The pull rod 805 is a heat-conducting rod, and a cooling pipe is installed inside the ring 801. The heat is carried away from the thermoelectric cooler 806 through the heat-conducting rod 805 to dissipate heat.

[0029] This invention also discloses a method for using a linear low-temperature heat pipe welding processing equipment, comprising the following steps: S1. After assembling the tube body and end cap of the linear low-temperature heat pipe body 9, it is fixed on the frame 1 by the workpiece fixing module 7. Specifically, the low-temperature heat pipe body 9 is placed on the fixing table 701 and located between multiple fixing blocks 704. The drive ring 706 is moved upward by rotating the third screw 709, so that the multiple fixing blocks 704 move closer to each other and work together to fix the low-temperature heat pipe body 9. S2. The position of the mounting plate 213 is adjusted by the adjustment module 2. Specifically, the rotation of the first screw 204 can control the L-shaped frame 203 to move back and forth, the rotation of the second screw 208 can control the mounting frame 206 to move, the cylinder 210 can make the mounting plate 213 move up and down, the first drive motor 211 can drive the mounting plate 213 to rotate horizontally, and the second drive motor 214 can adjust the pitch angle of the mounting plate 213, which is beneficial for the welding torch body 3 to perform welding work and the weld seam adaptive tracking module 5 to perform scanning work. The weld seam adaptive tracking module 5 is started, and the laser vision sensor performs three-dimensional scanning and positioning of the joint between the end cap and the tube body of the low temperature heat pipe body 9, and automatically corrects the starting position of the welding torch body 3 and the preset trajectory. S3. Start the temperature control and heat dissipation module, monitor the temperature of the low-temperature heat pipe body 9 near the welding area in real time through the non-contact temperature measurement unit 6, and at the same time control the semiconductor cooling ring 806 to force cooling of the low-temperature heat pipe body 9 at a set distance from the weld seam. S4. Start the welding torch body 3 to perform welding operations. During the welding process, the laser vision sensor tracks the weld seam in real time and adaptively compensates for minor deviations. The non-contact temperature measurement unit 6 continuously monitors the temperature and provides feedback to adjust the cooling state of the semiconductor cooling ring 8 until the welding is completed.

[0030] S5. After welding is completed, remove the low-temperature heat pipe body 9 from the workpiece fixing module 7.

[0031] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A linear low-temperature heat pipe welding processing equipment, comprising a frame (1), a low-temperature heat pipe body (9), and a controller (10), characterized in that, An adjustment module (2) is installed on the frame (1). The adjustment module (2) is equipped with a welding torch body (3) and a weld seam adaptive tracking module (5). The adjustment mechanism (2) is used to adjust the position of the welding torch body (3). The weld seam adaptive tracking module (5) is used to perform three-dimensional scanning and positioning of the weld seam to be welded before welding, automatically correct the starting position and trajectory of the welding torch body (3), and track the weld seam in real time during the welding process, adaptively compensating for minor deviations caused by workpiece clamping or manufacturing tolerances. The frame (1) is integrated with a workpiece fixing module (7) for clamping the low-temperature heat pipe body (9). The frame (1) is also integrated with a temperature control and heat dissipation module. The temperature control and heat dissipation module includes a non-contact temperature measuring unit (6) and a semiconductor cooling ring (8). The non-contact temperature measuring unit (6) is used to monitor the temperature of the heat pipe near the welding area in real time. The semiconductor cooling ring (8) is used to actively force-cool the tube body of the low-temperature heat pipe body (9) at a set distance from the weld seam.

2. The linear low-temperature heat pipe welding processing equipment according to claim 1, characterized in that, The adjustment module (2) includes a first slide rail (201) mounted on the frame (1) at the front and rear. A first slider (202) adapted to the first slide rail (201) is slidably connected in the first slide rail (201). An L-shaped frame (203) is fixedly connected to the upper end of the first slider (202). A first screw (204) threaded through the first slider (202) is rotatably connected in the first slide rail (201). The first screw (204) is driven to rotate by a first servo motor (205) mounted on the frame (1).

3. The linear low-temperature heat pipe welding processing equipment according to claim 2, characterized in that, The L-shaped frame (203) is fitted with a mounting bracket (206) that is slidably connected to it. Two fixing plates (207) are fixedly connected to the front side wall of the L-shaped frame (203). A second screw (208) threaded through the mounting bracket (206) is rotatably connected between the two fixing plates (207). The second screw (208) is driven to rotate by a second servo motor (209) mounted on the L-shaped frame (203). A cylinder (210) is installed at the bottom of the mounting bracket (206). A first drive motor (211) is installed at the telescopic end of the cylinder (210) through a support plate. A support plate (212) is fixedly installed at the end of the drive shaft of the first drive motor (211). A mounting plate (213) is rotatably connected to the side wall of the support plate (212). The mounting plate (213) is driven to rotate by a second drive motor (214) mounted on the side wall of the support plate (212).

4. The linear low-temperature heat pipe welding processing equipment according to claim 3, characterized in that, The welding torch body (3) is mounted on the mounting plate (213), and the welding torch body (3) is also equipped with a welding wire feeding tube (4).

5. The linear low-temperature heat pipe welding processing equipment according to claim 3, characterized in that, The weld seam adaptive tracking module (5) is mounted on the mounting plate (213), and the weld seam adaptive tracking module (5) is a laser vision sensor.

6. The linear low-temperature heat pipe welding processing equipment according to claim 1, characterized in that, The workpiece fixing module (7) includes a fixing platform (701) mounted on the frame (1). Multiple mounting grooves (702) are arranged in a circular array on the fixing platform (701). Mounting sliders (703) adapted to each mounting groove (702) are slidably connected within the grooves. Multiple springs (705) connect the mounting sliders (703) to the inner walls of the mounting grooves (702). Fixing blocks (704) are fixedly mounted on the upper ends of each mounting slider (703). Each fixing block (704) is triangular in shape. The workpiece fixing module (7) is configured to clamp and fix the low-temperature heat pipe body (9) together. The workpiece fixing module (7) also includes a drive ring (706) sleeved on the outside of multiple fixing blocks (704) and abutting against their inclined outer side walls. A limiting rod (707) that slides through the drive ring (706) is fixedly connected on the fixing platform (701). A third servo motor (708) is installed at the upper end of the fixing platform (701). A third screw (709) that is threaded through the drive ring (706) is installed at the end of the output shaft of the third servo motor (708).

7. The linear low-temperature heat pipe welding processing equipment according to claim 3, characterized in that, The non-contact temperature measurement unit (6) is an infrared temperature sensor installed on the mounting plate (213).

8. The linear low-temperature heat pipe welding processing equipment according to claim 1, characterized in that, The semiconductor cooling ring (8) includes a ring body (801), which is sleeved on the outside of the low-temperature heat pipe body (9). Two connecting plates (802) are fixedly connected to the bottom of the ring body (801). An electric telescopic rod (803) is installed on the upper end of the frame (1). The telescopic end of the electric telescopic rod (803) is fixedly connected to the bottom of one of the connecting plates (802). A guide rod (804) is fixedly connected to the upper end of the frame (1). The guide rod (804) slides through the other connecting plate (802). Multiple pull rods (805) are slidably connected through the ring body (801). One end of each of the multiple pull rods (805) located inside the ring body (801) is fixedly connected to a semiconductor cooling chip (806).

9. A method of using a linear low-temperature heat pipe welding processing equipment, wherein welding is performed using the linear low-temperature heat pipe welding processing equipment according to any one of claims 1-8, characterized in that, Includes the following steps: S1. After assembling the tube body and end cap of the linear low temperature heat pipe body (9), it is fixed on the frame (1) by the workpiece fixing module (7); S2. Adjust the position of the mounting plate (213) through the adjustment module (2), start the weld seam adaptive tracking module (5), and use the laser vision sensor to perform three-dimensional scanning and positioning of the joint between the end cap and the pipe body, and automatically correct the starting position and preset trajectory of the welding gun body (3). S3. Start the temperature control and heat dissipation module, and monitor the temperature of the low temperature heat pipe body (9) near the welding area in real time through the non-contact temperature measurement unit (6), while controlling the semiconductor cooling ring (806) to force cool the tube body (9) at a set distance from the weld seam. S4. Start the welding torch body (3) to perform welding operations. During the welding process, the laser vision sensor tracks the weld seam in real time and adaptively compensates for minor deviations. The non-contact temperature measurement unit (6) continuously monitors the temperature and provides feedback to adjust the cooling state of the semiconductor cooling ring (8) until the welding is completed. S5. After welding is completed, the low-temperature heat pipe body (9) is removed from the workpiece fixing module (7).

Images