A fixing device for welding integral assembly of rotary tubes

Abstract

This invention discloses a fixing device for the assembly and welding of rotary tubes, comprising an assembly mechanism and a welding mechanism. The assembly mechanism includes a frame with vertical slide rails on both sides. A first sliding module for clamping and pressing the collecting electrode, a second sliding module for clamping high-frequency components, and a third sliding module for clamping the electron gun are sequentially slidably mounted on the two vertical slide rails from top to bottom. The first, second, and third sliding modules are respectively connected to a first, second, and third driving mechanism. A rotating module for clamping and driving the electron gun is located at the bottom of the frame. The assembly mechanism includes a coaxiality detection mechanism and an airtightness detection mechanism. This solution adopts a modular integrated design, with each functional unit working collaboratively to meet the assembly and welding needs of rotary tubes of various specifications, achieving high precision and efficiency in assembly and welding.

Description

Technical Field

[0001] This invention relates to the field of rotary tube assembly and welding technology, and more specifically to a fixing device used in the assembly and welding of rotary tubes. Background Technology

[0002] Gyrotrons are high-power vacuum devices that generate high-frequency radio waves through the cyclotron resonance of electrons in a strong magnetic field. These devices have significant advantages in the millimeter-wave and terahertz frequency bands and are widely used in scientific research, medical applications, communications, and military fields. Their manufacturing process involves the assembly and welding of multiple precision components. Gyrotrons mainly include an electron gun, high-frequency components, and a collector electrode. Traditional production methods rely heavily on manual operation, resulting in problems such as low assembly accuracy, unstable welding quality, low production efficiency, and poor consistency. In particular, key process steps such as coaxiality control and welding sealing require highly skilled operators and are easily affected by human factors, making it difficult to guarantee product consistency and reliability. Summary of the Invention

[0003] To address the aforementioned shortcomings of existing technologies, this invention provides a fixing device for the assembly and welding of rotary tubes, which solves the problems of low assembly efficiency, low assembly accuracy, and poor welding quality in traditional manual assembly and welding of rotary tubes.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A fixing device for welding a rotary tube assembly is provided, comprising an assembly mechanism for clamping and assembling an electron gun, a collector electrode, and high-frequency components, and a welding mechanism for welding the assembled electron gun, collector electrode, and high-frequency components. The assembly mechanism includes a frame, with vertical slide rails on both sides. A first sliding module for clamping and pressing the collector electrode, a second sliding module for clamping the high-frequency components, and a third sliding module for clamping the electron gun are sequentially slidably mounted on the two vertical slide rails from top to bottom. The first, second, and third sliding modules are respectively connected to a first, second, and third driving mechanism. A rotating module for clamping and driving the electron gun to rotate is provided at the bottom of the frame. The assembly mechanism is equipped with a coaxiality detection mechanism and an airtightness detection mechanism.

[0006] Furthermore, the first sliding module includes a collector clamping slide and a collector clamping slide located below it. The collector clamping slide is provided with a vertically downward rotating pressure head, the collector clamping slide is provided with a servo gripper, and the collector clamping slide is provided with a first nut. The first driving mechanism includes a first lead screw that cooperates with the first nut. The upper end of the first lead screw is connected to a first servo motor for transmission. A lifting cylinder for spacing adjustment is provided between the collector clamping slide and the collector clamping slide.

[0007] Furthermore, the second sliding module includes an upper clamping slide and a lower clamping slide located below it. Both the upper and lower clamping slides are equipped with servo grippers, and the lower clamping slide is equipped with a second nut. The second driving mechanism includes a second lead screw that cooperates with the second nut. The upper end of the second lead screw is connected to a second servo motor for transmission. A first lifting electric cylinder for spacing adjustment is provided between the upper and lower clamping slides.

[0008] Furthermore, the third sliding module includes an electron gun clamping slide, and the third driving mechanism is a second lifting electric cylinder fixed on the frame and whose telescopic end is connected to the electron gun clamping slide. The electron gun clamping slide is provided with a servo gripper and a horizontal telescopic cylinder located above the servo gripper. The telescopic end of the horizontal telescopic cylinder is provided with a conductive copper fork, and the mounting block is also provided with a displacement sensor for detecting the travel of the conductive slide rod.

[0009] Furthermore, the servo gripper includes two V-shaped clamps for centering and holding the rotary tube assembly.

[0010] Furthermore, the rotating module includes a base platform, on which a servo rotating platform for placing the electron gun is provided. A double-headed cylinder is provided on the servo rotating platform, and arc-shaped clamping blocks are provided on both telescopic ends of the double-headed cylinder, with the two arc-shaped clamping blocks facing each other.

[0011] Furthermore, a conductive copper block is provided on the base platform that makes elastic contact with the servo rotary table, a pointer is provided on the base platform, and calibration lines that cooperate with the pointer are provided on the outer edge of the servo rotary table.

[0012] Furthermore, the welding mechanism includes a welding robotic arm and a welding torch assembly. The welding torch assembly includes a mounting block mounted on the welding robotic arm. The mounting block is equipped with a welding torch and a probe. The welding torch includes a blow-off protective tube and a welding needle located at the front end of the blow-off protective tube. The probe is movably mounted on the mounting block via a probe telescopic cylinder. A conductive slide rod connected to the probe is slidably mounted on the mounting block. The mounting block is also equipped with a displacement sensor for detecting the travel distance of the conductive slide rod.

[0013] Furthermore, the coaxiality detection mechanism includes a servo linear module vertically mounted on one side of the frame, and a horizontally placed infrared rangefinder is mounted on the slider of the servo linear module.

[0014] Furthermore, the airtightness testing mechanism includes a bracket set on one side of the frame, on which a transverse slot and a telescopic rotary cylinder are provided. A helium detection connector is fitted in the transverse slot, and the telescopic end of the telescopic rotary cylinder is provided with a pressure block for pressing the helium detection connector tightly into the transverse slot. The helium detection connector is connected to an external helium detection device through a metal flexible hose.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. This solution highly integrates the assembly mechanism, coaxiality detection mechanism, and helium detection mechanism onto a single platform. After clamping, the electron gun, collector electrode, and high-frequency components can sequentially complete all key processes from component assembly, clamping, coaxiality detection, welding, and helium tightness testing. This greatly shortens the production cycle, completely eliminates the accuracy loss caused by multiple transfers and clamping, and improves the first-pass yield of the product. At the same time, the assembly mechanism can accurately assemble electron guns, collector electrodes, and high-frequency components of different sizes, and adopts a modular integrated design, with each functional unit working collaboratively to meet the production needs of multi-specification gyrotrons.

[0017] 2. The sliding modules on the assembly mechanism of this solution share two vertical slide rails, which ensures the vertical accuracy and straightness of each sliding module during lifting and lowering, and avoids the cumulative error caused by inconsistent benchmarks. With the V-shaped clamps and servo grippers controlled by servo torque on each sliding module, automatic centering and clamping of the electron gun, collector electrode and high-frequency components can be realized, laying the foundation for subsequent high-quality welding and tube performance.

[0018] 3. The probe on the welding mechanism of this solution can perform conductive tracking of the workpiece weld and detect displacement changes through a displacement sensor, thereby accurately identifying the actual edge position of the workpiece weld. This compensates for positional deviations caused by manufacturing tolerances and assembly errors, ensuring the accuracy of the welding position. With the rotational cooperation of the servo rotary table, the welding needle can perform rotary welding on the assembled electron gun, collector electrode and high-frequency components. At the same time, the gas blowing protection tube can continuously provide argon gas protection during the welding process to prevent weld oxidation.

[0019] 4. After the gyrotube is welded, the helium detection connector can be sent to the helium detection port on the gyrotube and connected. Helium gas is blown into the welding point through the gas protection tube, and the helium detection equipment is used to detect whether there is a helium leak, thereby effectively judging the sealing performance of the gyrotube. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. The above and other objects, features, and advantages of the present invention will become clearer through the accompanying drawings. The same reference numerals indicate the same parts in all the drawings. The drawings are not intentionally drawn to scale to actual dimensions; the focus is on illustrating the main points of the invention.

[0021] Figure 1 This is a schematic diagram of a fixing device used in the assembly and welding of rotary tubes.

[0022] Figure 2 This is a schematic diagram of the assembly mechanism.

[0023] Figure 3 This is a schematic diagram of the structure of the first sliding module.

[0024] Figure 4 This is a schematic diagram of the second sliding module.

[0025] Figure 5 This is a schematic diagram of the third sliding module.

[0026] Figure 6 This is a schematic diagram of the rotating module.

[0027] Figure 7 This is a schematic diagram of the coaxiality testing mechanism.

[0028] Figure 8 This is a schematic diagram of the welding mechanism.

[0029] Figure 9 This is a schematic diagram of the welding torch assembly.

[0030] Figure 10 This is a schematic diagram of the airtightness testing mechanism.

[0031] Among them, 1. Assembly mechanism, 11. Frame, 12. Vertical slide rail, 13. First sliding module, 131. Collector electrode clamping slide, 132. Collector electrode clamping slide, 133. Rotary pressure head, 134. First nut, 135. First lead screw, 136. First servo motor, 137. Lifting cylinder, 14. Second sliding module, 141. Upper clamping slide, 142. Lower clamping slide, 143. Second nut, 144. Second lead screw, 145. Second servo motor, 146. First lifting electric cylinder, 15. The... Three sliding modules, 151. Electron gun clamping slide, 152. Second lifting electric cylinder, 153. Horizontal telescopic cylinder, 154. Conductive copper fork, 16. Rotation module, 161. Base platform, 162. Servo rotary table, 163. Double-headed cylinder, 164. Arc-shaped clamping block, 165. Conductive copper block, 166. Pointer, 167. Calibration line; 17. Servo linear module, 18. Infrared rangefinder, 19. Bracket, 110. Horizontal slot, 111. Telescopic rotary cylinder, 112. Helium detector connector, 113. Pressure block;

[0032] 2. Welding mechanism; 21. Welding robotic arm; 22. Welding torch assembly; 23. Mounting block; 24. Probe; 25. Air blowing protection tube; 26. Welding needle; 27. Probe telescopic cylinder; 28. Conductive slide bar.

[0033] 3. Servo gripper; 31. V-shaped clamp; 4. Electron gun; 5. Collector electrode; 6. High-frequency components. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0036] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0037] Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0038] like Figure 1 and Figure 2 As shown, the fixing device for the assembly and welding of the rotary tube in this solution includes an assembly mechanism 1 for clamping and assembling the electron gun 4, the collecting electrode 5, and the high-frequency component 6, and a welding mechanism 2 for welding the assembled electron gun 4, the collecting electrode 5, and the high-frequency component 6. The assembly mechanism 1 includes a frame 11, with vertical slide rails 12 on both sides of the frame 11. A first sliding module 13 for clamping and pressing the collecting electrode 5, a second sliding module 14 for clamping the high-frequency component 6, and a third sliding module 15 for clamping the electron gun 4 are slidably arranged from top to bottom on the two vertical slide rails 12. The first sliding module 13, the second sliding module 14, and the third sliding module 15 are respectively connected to the first driving mechanism, the second driving mechanism, and the third driving mechanism. A rotating module 16 for clamping the electron gun 4 and driving its rotation is provided at the bottom of the frame 11. The assembly mechanism 1 is provided with a coaxiality detection mechanism and an airtightness detection mechanism.

[0039] In specific implementation, such as Figure 3As shown, the first sliding module 13 includes a collector clamping slide 131 and a collector clamping slide 132 located below it. The collector clamping slide 131 is provided with a vertically downward rotating pressure head 133. The collector clamping slide 132 is provided with a servo gripper 3 and a first nut 134. The first driving mechanism includes a first lead screw 135 that cooperates with the first nut 134. The upper end of the first lead screw 135 is connected to the first servo motor 136 for transmission. A lifting cylinder 137 for spacing adjustment is provided between the collector clamping slide 132 and the collector clamping slide 131. In this solution, the servo gripper 3 on the collector clamping slide 132 can achieve stable clamping of the collector 5, and the rotating pressure head 133 on the collector clamping slide 131 can achieve downward pressure on the collector 5 to facilitate the clamping after the subsequent assembly of the rotary tube. At the same time, the rotating pressure head 133 can rotate freely.

[0040] like Figure 4 As shown, the second sliding module 14 includes an upper clamping slide 141 and a lower clamping slide 142 located below it. Both the upper clamping slide 141 and the lower clamping slide 142 are provided with servo grippers 3. The lower clamping slide 142 is provided with a second nut 143. The second drive mechanism includes a second lead screw 144 that cooperates with the second nut 143. The upper end of the second lead screw 144 is connected to the second servo motor 145 for transmission. A first lifting electric cylinder 146 for spacing adjustment is provided between the upper clamping slide 141 and the lower clamping slide 142. This solution can achieve stable clamping of the high-frequency component 6 through the servo grippers 3 on the upper clamping slide 141 and the lower clamping slide 142.

[0041] like Figure 5 As shown, the third sliding module 15 includes an electron gun clamping slide 151, and the third driving mechanism is a second lifting electric cylinder 152 fixed on the frame 11 and whose telescopic end is connected to the electron gun clamping slide 151. The electron gun clamping slide 151 is provided with a servo gripper 3 and a horizontal telescopic cylinder 153 located above the servo gripper 3. The telescopic end of the horizontal telescopic cylinder 153 is provided with a conductive copper fork 154.

[0042] All the servo grippers 3 mentioned above in this scheme include two V-shaped clamping blocks 31 for centering and clamping the gyro tube components. The servo grippers 3 can be controlled by servo torque to facilitate centering and clamping of the electron gun 4, the collector electrode 5 and the high-frequency component 6.

[0043] like Figure 6As shown, the rotating module 16 includes a base platform 161, on which a servo rotating platform 162 for placing the electron gun 4 is provided. A double-headed cylinder 163 is provided on the servo rotating platform 162. Arc-shaped clamping blocks 164 are provided on both telescopic ends of the double-headed cylinder 163, and the two arc-shaped clamping blocks 164 are arranged facing each other. A conductive copper block 165 is provided on the base platform 161 and elastically contacts the servo rotating platform 162. A pointer 166 is provided on the base platform 161, and a calibration line 167 that cooperates with the pointer 166 is provided on the outer edge of the servo rotating platform 162.

[0044] This solution uses the servo gripper 3 on the electron gun clamping slide 151 to achieve centering and clamping of the electron gun 4. At the same time, the arc-shaped clamping block 164 on the double-headed cylinder 163 can also clamp and fix the electron gun 4 on the servo rotary table 162. By driving the relative sliding of the first sliding module 13, the second sliding module 14 and the third sliding module 15, the electron gun 4, the collecting electrode 5 and the high-frequency component 6 can be precisely assembled. The rotating pressure head 133 can be used to press the entire gyrotube, and in conjunction with the servo rotary table 162, the entire gyrotube can be stably rotated to facilitate subsequent welding operations.

[0045] Specifically, since the lower end of the electron gun 4 is welded with a filament bottom cover, and the lower section of the electron gun 4 is provided with a ceramic insulating bellows, the filament bottom cover needs to be fully welded before the gyrotube assembly. Specifically, the electron gun 4 is first placed upside down on the servo rotary table 162 and fixed by the arc-shaped clamp 164. The horizontal telescopic cylinder 153 drives the conductive copper fork 154 to make conductive contact with the side wall of the electron gun 4, providing a current loop for the welding of the electron gun 4 and avoiding the ceramic insulating bellows from affecting the current conduction. After the filament bottom cover is welded, the electron gun 4 is flipped upside down and placed on the servo rotary table 162. The arc-shaped clamp 164 clamps the electron gun 4 located on the upper section of the ceramic insulating bellows and makes conductive contact with it. For the subsequent welding of the electron gun 4, the collector electrode 5 and the high-frequency component 6, the loop current can be applied to the electron gun 4 through the conductive copper block 165, the servo rotary table 162 and the arc-shaped clamp 164.

[0046] In specific implementation, such as Figure 7 As shown, the coaxiality detection mechanism includes a servo linear module 17 vertically mounted on one side of the frame 11, and a horizontally placed infrared rangefinder 18 mounted on the slider of the servo linear module 17. After the assembly mechanism 1 assembles and presses the entire rotary tube, the servo linear module 17 can drive the infrared rangefinder 18 to each detection point. At the same time, the servo rotary table 162 can rotate the entire rotary tube at a certain angle, and then the infrared rangefinder 18 can repeatedly measure each detection point. Finally, by combining the measurement data, the coaxiality error of the entire rotary tube can be obtained. Only after passing the test can the welding process begin.

[0047] In specific implementation, such as Figure 8 and Figure 9 As shown, the welding mechanism 2 includes a welding robotic arm 21 and a welding torch assembly 22. The welding torch assembly 22 includes a mounting block 23 mounted on the welding robotic arm 21. The mounting block 23 is equipped with a welding torch and a probe 24. The welding torch includes a blow-off protective tube 25 and a welding needle 26 located at the front end of the blow-off protective tube 25. The probe 24 is movably mounted on the mounting block 23 via a probe telescopic cylinder 27. A conductive slide rod 28 connected to the probe 24 is slidably mounted on the mounting block 23. The mounting block 23 is also equipped with a displacement sensor for detecting the travel distance of the conductive slide rod 28.

[0048] Before welding, the probe 24 automatically extends via the probe telescopic cylinder 27. By using the conductive tracking of the probe 24, the actual edge position of the weld seam on the workpiece can be accurately identified, thereby compensating for positional deviations caused by manufacturing tolerances and assembly errors, and ensuring the accuracy of the welding position. Specifically, the probe 24 makes conductive contact with the side wall of the workpiece, and the welding robotic arm 21 adjusts the height of the probe 24 until the probe 24 moves to the weld seam position and is de-energized. The welding robotic arm 21 records the position information at this time, thus obtaining the actual edge position of the weld seam.

[0049] After the probe 24 completes edge finding, it automatically retracts and the welding gun switches to welding mode. With the rotation of the servo rotary table 162, the welding points of the assembled electron gun 4, collector electrode 5 and high-frequency component 6 are rotated and welded. At the same time, the gas blowing protection tube 25 can continuously provide argon gas protection during the welding process to prevent weld oxidation.

[0050] In specific implementation, such as Figure 10 As shown, the airtightness testing mechanism includes a bracket 19 mounted on one side of the frame 11. The bracket 19 is provided with a transverse slot 110 and a telescopic rotary cylinder 111. A helium detection connector 112 is mounted in the transverse slot 110. The telescopic end of the telescopic rotary cylinder 111 is provided with a pressure block 113 for pressing the helium detection connector 112 tightly into the transverse slot 110. The helium detection connector 112 is connected to an external helium detection device through a metal hose. After the entire rotary tube is welded, the helium detection connector 112 can be sent to the helium detection port on the entire rotary tube for docking. Helium gas is blown into the welding point through the blowing protection pipe 25, and the helium detection device is used to detect whether there is a helium leak, thereby effectively determining the airtightness of the entire rotary tube.

[0051] The workflow of this solution is explained in detail below:

[0052] 1. Electron Gun 4 Assembly and Welding Process: Place the electron gun 4 upside down on the servo rotary table 162—the servo gripper 3 on the electron gun clamping slide 151 descends and clamps and positions the electron gun 4—the double-headed cylinder 163 drives the arc-shaped clamping block 164 to concentrically clamp the electron gun 4—the conductive copper fork 154 extends and contacts the electron gun 4—the servo gripper 3 releases—the welding mechanism 2 moves to the welding position to weld the filament bottom cover on the electron gun 4—the servo rotary table 162 rotates to complete the welding—the welding mechanism 2 returns to the safety position—the conductive copper fork 154 retracts—the servo gripper 3 returns to the waiting position—the arc-shaped clamping block 164 releases the electron gun 4—flip the electron gun 4 upright—the servo gripper 3 descends and clamps and positions the electron gun 4—the arc-shaped clamping block 164 clamps the electron gun 4 again—the electron gun 4 assembly and welding process is completed.

[0053] 2. Assembly process of high frequency component 6: The servo grippers 3 on the upper clamping slide 141 and the lower clamping slide 142 move to the receiving position - the high frequency component 6 is sent to the two servo grippers 3 - the two servo grippers 3 descend and the lower end of the high frequency component 6 is inserted into the upper end of the electron gun 4 - the high frequency assembly process is completed.

[0054] 3. Assembly and clamping process of collector electrode 5: The servo gripper 3 on the collector electrode clamping slide 132 moves to the receiving position - the rotating pressure head 133 rises - the collector electrode 5 is sent to the servo gripper 3 - the servo gripper 3 descends and inserts the lower end of the collector electrode 5 into the upper end of the high frequency component 6 - the rotating pressure head 133 descends and clamps the collector electrode 5 - the assembly process of collector electrode 5 is completed.

[0055] 4. Coaxiality testing process: After the entire gyrotube assembly is completed, all servo grippers 3 are slightly loosened. The servo linear module 17 moves the infrared rangefinder 18 to the testing point and measures the distance. The entire gyrotube is rotated 45 degrees and measured again. This process is repeated 8 times. All measured data are integrated to obtain the coaxiality accuracy.

[0056] 5. Conductive tracking process of probe 24: After the coaxiality test is qualified, probe 24 automatically extends through probe telescopic cylinder 27 - probe 24 performs conductive tracking on the workpiece weld - identifies the actual edge position data of the workpiece weld - probe 24 conductive tracking process is completed; in addition, before the filament bottom cover is welded to the electron gun 4, it is also possible to choose whether to execute probe 24 conductive tracking process according to the actual situation.

[0057] 6. Gyrotube welding process: Welding mechanism 2 moves to the spot welding point for spot welding — Welding mechanism 2 moves to the full welding point for full welding — Servo rotary table 162 rotates to complete the welding — Welding mechanism 2 returns to the safe position — Gyrotube welding process is completed.

[0058] 7. Helium tightness test process: The telescopic rotary cylinder 111 is released—the loading and unloading mechanism sends the helium test connector 112 to the helium test port for docking—the helium test equipment is running—the blowing protection tube 25 moves to the outside of the helium test point and blows out helium gas—the helium test equipment checks for helium leaks—after the helium test equipment completes the test—the welding mechanism 2 returns to the waiting position—the helium test connector 112 is sent back—the telescopic rotary cylinder 111 clamps the helium test connector 112—the helium tightness test process is completed.

[0059] In summary, this solution highly integrates the assembly mechanism 1, coaxiality detection mechanism, and helium detection mechanism onto a single platform. After clamping, the electron gun 4, collector electrode 5, and high-frequency component 6 can sequentially complete all key processes from component assembly, clamping, coaxiality detection, welding, and helium tightness testing, greatly shortening the production cycle and completely eliminating the accuracy loss caused by multiple transfers and clamping, thus improving the first-pass yield of the product. At the same time, the assembly mechanism 1 can accurately assemble electron guns 4, collector electrodes 5, and high-frequency components 6 of different sizes, and adopts a modular integrated design, with each functional unit working collaboratively to meet the production needs of multi-specification gyrotubes.

[0060] Although the specific embodiments of the invention have been described in detail with reference to the accompanying drawings, this should not be construed as limiting the scope of protection of this patent; various modifications and variations that can be made by a person skilled in the art without inventive effort within the scope described in the claims are still within the scope of protection of this patent.

Claims

1. A fixture for use in the final assembly and welding of a gyrotron tube, characterized in that, The assembly mechanism is used for clamping and assembling the electron gun, the collecting electrode and the high frequency component, and the welding mechanism is used for welding the assembled electron gun, collecting electrode and high frequency component; The assembly mechanism comprises a frame body, vertical sliding rails are arranged on both sides of the frame body, a first sliding module for clamping and pressing the collecting electrode, a second sliding module for clamping the high frequency component and a third sliding module for clamping the electron gun are sequentially and slidably arranged on the two vertical sliding rails from top to bottom, the first sliding module, the second sliding module and the third sliding module are respectively in transmission connection with a first driving mechanism, a second driving mechanism and a third driving mechanism, and a rotating module for clamping and driving the rotation of the electron gun is arranged at the bottom of the frame body; The assembly mechanism is provided with a coaxiality detection mechanism and a gas tightness detection mechanism; The first sliding module comprises a collecting electrode pressing sliding table and a collecting electrode clamping sliding table below the collecting electrode pressing sliding table, a vertically downward rotating pressing head is arranged on the collecting electrode pressing sliding table, a servo clamping jaw is arranged on the collecting electrode clamping sliding table, a first nut is arranged on the collecting electrode clamping sliding table, the first driving mechanism comprises a first lead screw matched with the first nut, the upper end of the first lead screw is in transmission connection with a first servo motor, and a lifting cylinder for spacing adjustment is arranged between the collecting electrode clamping sliding table and the collecting electrode pressing sliding table; The second sliding module comprises an upper clamping sliding table and a lower clamping sliding table below the upper clamping sliding table, servo clamping jaws are arranged on the upper clamping sliding table and the lower clamping sliding table, a second nut is arranged on the lower clamping sliding table, the second driving mechanism comprises a second lead screw matched with the second nut, the upper end of the second lead screw is in transmission connection with a second servo motor, and a first lifting cylinder for spacing adjustment is arranged between the upper clamping sliding table and the lower clamping sliding table; The third sliding module comprises an electron gun clamping sliding table, the third driving mechanism is a second lifting cylinder fixed on the frame body and connected with the electron gun clamping sliding table at the telescopic end, a servo clamping jaw and a horizontal telescopic cylinder above the servo clamping jaw are arranged on the electron gun clamping sliding table, and a conductive copper fork is arranged at the telescopic end of the horizontal telescopic cylinder; the servo clamping jaw comprises two V-shaped clamping blocks for centering clamping of the gyrotron component; The rotating module comprises a base table, a servo rotating table for placing the electron gun is arranged on the base table, a double-head cylinder is arranged on the servo rotating table, arc-shaped clamping blocks are arranged at the two telescopic ends of the double-head cylinder, and the two arc-shaped clamping blocks are oppositely arranged; A conductive copper block in elastic contact with the servo rotating table is arranged on the base table, a pointer is arranged on the base table, and a calibration line matched with the pointer is arranged on the outer edge of the servo rotating table.

2. The fixture for use in the final assembly and welding of a gyrotron tube according to claim 1, characterized in that The welding mechanism comprises a welding mechanical arm and a welding gun assembly, the welding gun assembly comprises a mounting block arranged on the welding mechanical arm, a welding gun and a probe are arranged on the mounting block, the welding gun comprises a blowing protection pipe and a welding needle arranged at the front end of the blowing protection pipe, the probe is movably arranged on the mounting block through a probe telescopic cylinder, a conductive sliding rod connected with the probe is slidably arranged on the mounting block, and a displacement sensor for detecting the moving stroke of the conductive sliding rod is further arranged on the mounting block.

3. The fixture for assembling and welding a gyrotron tube according to claim 1, wherein The coaxiality detection mechanism comprises a servo linear module vertically arranged on one side of the frame body, and an infrared range finder horizontally arranged on the sliding block of the servo linear module.

4. The fixture for use in the final assembly and welding of a gyrotron tube according to claim 1, characterized in that The air tightness detection mechanism comprises a support arranged on one side of the frame body, a transverse clamping groove and a telescopic rotary cylinder are arranged on the support, a helium detection connector is clamped in the transverse clamping groove, a pressing block for tightly pressing the helium detection connector in the transverse clamping groove is arranged at the telescopic end of the telescopic rotary cylinder, and the helium detection connector is connected with an external helium detection equipment through a metal hose.

Images