Fixing device applied to assembling and welding of whole gyrotron

Abstract

The invention discloses a fixing device applied to assembling and welding of a whole gyrotron. The fixing device comprises an assembling mechanism and a welding mechanism. The assembling mechanism comprises a frame body, vertical sliding rails are arranged on the two sides of the frame body, and a first sliding module used for clamping and pressing a collector, a second sliding module used for clamping a high-frequency component and a third sliding module used for clamping an electronic gun are sequentially arranged on the two vertical sliding rails from top to bottom in a sliding mode. The first sliding module, the second sliding module and the third sliding module are in transmission connection with the first driving mechanism, the second driving mechanism and the third driving mechanism respectively, and a rotating module used for clamping an electronic gun and driving the electronic gun to rotate is arranged at the bottom of the frame body; a coaxiality detection mechanism and an air tightness detection mechanism are arranged on the assembling mechanism; according to the scheme, the modular integrated design is adopted, all functional units work cooperatively, the assembling and welding requirements of gyrotron of multiple specifications are met, and the assembling and welding precision and efficiency are high.

Description

TECHNICAL FIELD

[0001] The application relates to a fixing device for whole-tube assembly and welding of a gyrotron. BACKGROUND

[0002] The gyrotron is a high-power vacuum device, which generates high-frequency radio waves by using the cyclotron resonance of electrons in a strong magnetic field; the device has significant advantages in the millimeter wave and terahertz frequency bands, and is widely applied to scientific research, medical treatment, communication, military affairs and other fields; the manufacturing process of the device involves the assembly and welding of multiple precise components, and the gyrotron mainly comprises an electron gun, a high-frequency component and a collector; the traditional production mode mainly relies on manual operation, and problems such as low assembly precision, unstable welding quality, low production efficiency and poor consistency exist; in particular, the key process links such as coaxiality control and welding sealing require high skills of the operators, are easily affected by human factors, and it is difficult to guarantee the consistency and reliability of the products. SUMMARY

[0003] In view of the above problems of the prior art, the application provides a fixing device for whole-tube assembly and welding of a gyrotron, which solves the problems of low assembly efficiency, low assembly precision and poor welding quality in the traditional manual assembly and welding of the gyrotron.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the application is as follows: The application provides a fixing device for whole-tube assembly and welding of a gyrotron, which comprises an assembly mechanism for clamping and assembling an electron gun, a collector and a high-frequency component, and a welding mechanism for welding the assembled electron gun, collector and high-frequency component; the assembly mechanism comprises a frame body, vertical sliding rails are arranged on the two sides of the frame body, a first sliding module for clamping and pressing the collector, 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 the electron gun and driving the rotation thereof is arranged at the bottom of the frame body; a coaxiality detection mechanism and an air tightness detection mechanism are arranged on the assembly mechanism.

[0005] Further, the first sliding module comprises a collector pressing sliding table and a collector clamping sliding table located below the collector pressing sliding table, a vertically downward rotating pressing head is arranged on the collector pressing sliding table, a servo clamping jaw is arranged on the collector clamping sliding table, a first nut is arranged on the collector 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 collector clamping sliding table and the collector pressing sliding table.

[0006] Further, the second sliding module comprises an upper clamping sliding table and a lower clamping sliding table located below the upper clamping sliding table, the upper clamping sliding table and the lower clamping sliding table are both provided with a servo clamping jaw, the lower clamping sliding table is provided with a second nut, the second driving mechanism comprises a second screw rod matched with the second nut, the upper end of the second screw rod is in transmission connection with a second servo motor, and the first lifting electric cylinder for spacing adjustment is arranged between the upper clamping sliding table and the lower clamping sliding table.

[0007] Further, the third sliding module comprises an electron gun clamping sliding table, the third driving mechanism is a second lifting electric cylinder fixed on the frame body and having an extension end connected with the electron gun clamping sliding table, the electron gun clamping sliding table is provided with a servo clamping jaw and a horizontal telescopic air cylinder located above the servo clamping jaw, the extension end of the horizontal telescopic air cylinder is provided with a conductive copper fork, and the mounting block is further provided with a displacement sensor for detecting the moving stroke of the conductive slide rod.

[0008] Further, the servo clamping jaw comprises two V-shaped clamping blocks for centering clamping of the gyrotron component.

[0009] Further, the rotating module comprises a base table, the base table is provided with a servo rotating table for placing the electron gun, the servo rotating table is provided with a double-head air cylinder, the two extension ends of the double-head air cylinder are both provided with arc-shaped clamping blocks, and the two arc-shaped clamping blocks are oppositely arranged.

[0010] Further, the base table is provided with a conductive copper block in elastic contact with the servo rotating table, the base table is provided with a pointer, and the outer edge of the servo rotating table is provided with a calibration line matched with the pointer.

[0011] Further, 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, the mounting block is provided with a welding gun and a probe, the welding gun comprises a gas blowing protection pipe and a welding needle located at the front end of the gas blowing protection pipe, the probe is movably arranged on the mounting block through a probe telescopic air cylinder, the mounting block is slidably provided with a conductive slide rod connected with the probe, and the mounting block is further provided with a displacement sensor for detecting the moving stroke of the conductive slide rod.

[0012] Further, the coaxiality detection mechanism comprises a servo linear module vertically arranged on one side of the frame body, and the sliding block of the servo linear module is provided with a horizontally arranged infrared distance meter.

[0013] Further, the gas tightness detection mechanism comprises a support arranged on one side of the frame body, the support is provided with a transverse clamping groove and a telescopic rotary air cylinder, a helium detection connector is clamped in the transverse clamping groove, the extension end of the telescopic rotary air cylinder is provided with a pressing block for tightly pressing the helium detection connector in the transverse clamping groove, and the helium detection connector is connected with an external helium detection device through a metal hose.

[0014] The beneficial effects of the present application are: 1. The scheme will assemble the mechanism, coaxial detection mechanism, helium detection mechanism high integration in a platform, electron gun, collector and high frequency components in clamping, can sequentially complete from the key process of component assembly, compression, coaxial detection, welding and helium leak detection, greatly shorten the production rhythm, completely eliminate the precision loss caused by multiple transport and clamping, improve the qualified rate of one-time processing of products; At the same time, the assembly mechanism can realize the accurate assembly of different size electron gun, collector and high frequency components, and adopt modular integrated design, each functional unit cooperates, which adapts to the production demand of multi-specification gyrotron.

[0015] 2. The vertical sliding modules on the assembly mechanism share two vertical sliding rails, which ensures the vertical precision and straightness of each sliding module during lifting movement, avoiding the cumulative error caused by inconsistent reference; With the V-shaped clamping block on each sliding module and the servo jaw controlled by servo torque, the automatic centering clamping of electron gun, collector and high frequency components can be realized, which lays a foundation for subsequent high quality welding and tube performance.

[0016] 3. The probe on the welding mechanism can conduct electric tracing on the weld of the workpiece, and detect the displacement change through the displacement sensor, so as to accurately identify the actual edge position of the workpiece weld, thereby compensating for the position deviation caused by part manufacturing tolerance and assembly error, and ensuring the precision of the welding position; Under the rotation of the servo rotary table, the welding needle can rotate the assembled electron gun, collector and high frequency components, and the gas blowing protection tube can continuously provide argon protection during welding to prevent weld oxidation.

[0017] 4. After the gyrotron tube welding is completed, the helium detection connector can be sent to the helium detection port of the gyrotron tube, helium gas is blown into the welding point through the gas blowing protection tube, and whether there is helium leakage is detected through the helium detection equipment, so as to effectively judge the sealing performance of the gyrotron tube. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor. Through the drawings shown, the above and other purposes, features and advantages of the present application will be more clear. The same reference signs in all the drawings indicate the same parts. The drawings are not drawn in proportion to the actual size, and the emphasis is on showing the main idea of the present application.

[0019] Figure 1 The structure diagram of the fixing device applied to the gyrotron tube assembly welding.

[0020] Figure 2 Structure diagram of the assembling mechanism.

[0021] Figure 3 Structure diagram of the first sliding module.

[0022] Figure 4 Structure diagram of the second sliding module.

[0023] Figure 5 Structure diagram of the third sliding module.

[0024] Figure 6 Structure diagram of the rotating module.

[0025] Figure 7 Structure diagram of the coaxiality detection mechanism.

[0026] Figure 8 Structure diagram of the welding mechanism.

[0027] Figure 9 Structure diagram of the welding gun assembly.

[0028] Figure 10 Structure diagram of the air tightness detection mechanism.

[0029] 1, assembling mechanism, 11, frame body, 12, vertical sliding rail, 13, first sliding module, 131, collecting pole pressing slide table, 132, collecting pole clamping slide table, 133, rotating pressing head, 134, first nut, 135, first lead screw, 136, first servo motor, 137, lifting cylinder, 14, second sliding module, 141, upper clamping slide table, 142, lower clamping slide table, 143, second nut, 144, second lead screw, 145, second servo motor, 146, first lifting cylinder, 15, third sliding module, 151, electron gun clamping slide table, 152, second lifting cylinder, 153, horizontal telescopic cylinder, 154, conductive copper fork, 16, rotating module, 161, base table, 162, servo rotating table, 163, double-head cylinder, 164, arc-shaped clamping block, 165, conductive copper block, 166, pointer, 167, calibration line; 17, servo linear module, 18, infrared distance meter, 19, bracket, 110, transverse clamping groove, 111, telescopic rotating cylinder, 112, helium detection connector, 113, pressing block; 2, welding mechanism, 21, welding mechanical arm, 22, welding gun assembly, 23, mounting block, 24, probe, 25, gas protection pipe, 26, welding needle, 27, probe telescopic cylinder, 28, conductive slide rod; 3, servo clamping jaw, 31, V-shaped clamping block. 4, electron gun, 5, collecting pole, 6, high-frequency component. DETAILED DESCRIPTION

[0030] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0032] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0033] In addition, the terms "first", "second" and the like are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance.

[0034] As shown in Figure 1 and Figure 2 The fixing device for the whole tube assembly welding of the gyrotron of the present application includes an assembly mechanism 1 for clamping and assembling the electron gun 4, the collector 5 and the high frequency component 6, and a welding mechanism 2 for welding the assembled electron gun 4, the collector 5 and the high frequency component 6; the assembly mechanism 1 includes a frame body 11, the frame body 11 is provided with vertical sliding rails 12 on both sides, two vertical sliding rails 12 are provided with a first sliding module 13 for clamping and pressing the collector 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 from top to bottom in sequence, the first sliding module 13, the second sliding module 14 and the third sliding module 15 are respectively in transmission connection with a first driving mechanism, a second driving mechanism and a third driving mechanism, the bottom of the frame body 11 is provided with a rotating module 16 for clamping and driving the rotation of the electron gun 4; the assembly mechanism 1 is provided with a coaxiality detection mechanism and a gas tightness detection mechanism.

[0035] In specific implementation, as Figure 3As shown, the first sliding module 13 comprises a collecting electrode pressing slide table 131 and a collecting electrode clamping slide table 132 located below the collecting electrode pressing slide table 131, the collecting electrode pressing slide table 131 is provided with a vertically downward rotating pressing head 133, the collecting electrode clamping slide table 132 is provided with a servo clamping jaw 3, the collecting electrode clamping slide table 132 is provided with a first nut 134, the first driving mechanism comprises a first lead screw 135 matched with the first nut 134, the upper end of the first lead screw 135 is in transmission connection with a first servo motor 136, and the lifting cylinder 137 for spacing adjustment is arranged between the collecting electrode clamping slide table 132 and the collecting electrode pressing slide table 131; The servo clamping jaw 3 on the collecting electrode clamping slide table 132 can realize stable clamping of the collecting electrode 5, the rotating pressing head 133 on the collecting electrode pressing slide table 131 can realize downward pressing of the collecting electrode 5, so as to facilitate pressing of the subsequent gyrotron whole tube assembly, and the rotating pressing head 133 can rotate freely.

[0036] As shown in Figure 4 The second sliding module 14 comprises an upper clamping slide table 141 and a lower clamping slide table 142 located below the upper clamping slide table 141, the upper clamping slide table 141 and the lower clamping slide table 142 are both provided with a servo clamping jaw 3, the lower clamping slide table 142 is provided with a second nut 143, the second driving mechanism comprises a second lead screw 144 matched with the second nut 143, the upper end of the second lead screw 144 is in transmission connection with a second servo motor 145, and the first lifting cylinder 146 for spacing adjustment is arranged between the upper clamping slide table 141 and the lower clamping slide table 142; The servo clamping jaw 3 on the upper clamping slide table 141 and the lower clamping slide table 142 can realize stable clamping of the high-frequency component 6.

[0037] As shown in Figure 5 The third sliding module 15 comprises an electron gun clamping slide table 151, the third driving mechanism is a second lifting cylinder 152 fixed on the frame body 11 and having a telescopic end connected with the electron gun clamping slide table 151, the electron gun clamping slide table 151 is provided with a servo clamping jaw 3 and a horizontal telescopic cylinder 153 located above the servo clamping jaw 3, and the telescopic end of the horizontal telescopic cylinder 153 is provided with a conductive copper fork 154.

[0038] All the servo clamping jaws 3 described in the scheme comprise two V-shaped clamping blocks 31 for centering clamping of the gyrotron components, and the servo clamping jaw 3 can be controlled by a servo torque, so as to realize centering clamping of the electron gun 4, the collecting electrode 5 and the high-frequency component 6.

[0039] As shown in Figure 6As shown, the rotating module 16 includes a base table 161, the base table 161 is provided with a servo rotating table 162 for placing the electron gun 4, the servo rotating table 162 is provided with a double-head pneumatic cylinder 163, the two telescopic ends of the double-head pneumatic cylinder 163 are provided with arc-shaped clamping blocks 164, and the two arc-shaped clamping blocks 164 are oppositely arranged; the base table 161 is provided with a conductive copper block 165 in elastic contact with the servo rotating table 162, the base table 161 is provided with a pointer 166, and the outer edge of the servo rotating table 162 is provided with a calibration line 167 matched with the pointer 166.

[0040] The scheme can realize the centering clamping of the electron gun 4 through the servo clamping jaw 3 on the electron gun clamping sliding table 151, and also can clamp and fix the electron gun 4 on the servo rotating table 162 through the arc-shaped clamping block 164 on the double-head pneumatic cylinder 163; the relative sliding of the first sliding module 13, the second sliding module 14 and the third sliding module 15 can realize the precise assembly of the electron gun 4, the collecting electrode 5 and the high-frequency component 6; the rotating pressure head 133 can realize the compression of the gyrotron whole tube, and the servo rotating table 162 can realize the stable rotation of the gyrotron whole tube, so as to facilitate the subsequent welding operation.

[0041] In particular, 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, before the gyrotron component assembly, the filament bottom cover needs to be full-welded, specifically, the electron gun 4 is first placed upside down on the servo rotating table 162, and then fixed by the arc-shaped clamping block 164, and then the horizontal telescopic cylinder 153 drives the conductive copper fork 154 to be in conductive contact with the side wall of the electron gun 4, so as to provide a current loop for the welding of the electron gun 4, and avoid the influence of the ceramic insulating bellows on the conduction of the current; after the welding of the filament bottom cover is completed, the electron gun 4 is then placed right side up on the servo rotating table 162, the arc-shaped clamping block 164 clamps the electron gun 4 located on the upper section of the ceramic insulating bellows and is in conductive contact with the electron gun 4, and for the subsequent welding of the electron gun 4, the collecting electrode 5 and the high-frequency component 6, the loop current can act on the electron gun 4 through the conductive copper block 165, the servo rotating table 162 and the arc-shaped clamping block 164.

[0042] In specific implementation, as shown in the figure, Figure 7 As shown, the coaxiality detection mechanism includes a servo linear module 17 vertically arranged on one side of the frame body 11, and an infrared distance meter 18 horizontally placed on the sliding block of the servo linear module 17; after the assembly mechanism 1 assembles and compresses the gyrotron whole tube, the servo linear module 17 can drive the infrared distance meter 18 to each detection point, and also can rotate the gyrotron whole tube by a certain angle through the servo rotating table 162, and then repeatedly measures each detection point through the infrared distance meter 18, and finally the coaxiality error of the gyrotron whole tube can be obtained by comprehensively measuring the data, and the gyrotron whole tube can enter the welding process only after passing the test.

[0043] In specific implementation, as shown in Figure 8 and Figure 9 The welding mechanism 2 includes a welding mechanical arm 21 and a welding gun assembly 22, the welding gun assembly 22 includes a mounting block 23 arranged on the welding mechanical arm 21, a welding gun and a probe 24 arranged on the mounting block 23, the welding gun includes a gas blowing protection pipe 25 and a welding needle 26 located at the front end of the gas blowing protection pipe 25, the probe 24 is movably arranged on the mounting block 23 through a probe telescopic cylinder 27, a conductive sliding rod 28 connected with the probe 24 is slidably arranged on the mounting block 23, and the mounting block 23 is further provided with a displacement sensor for detecting the moving stroke of the conductive sliding rod 28.

[0044] In the scheme, before welding, the probe 24 is automatically extended through the probe telescopic cylinder 27, and the actual edge position of the workpiece weld is accurately identified through the conductive tracing of the probe 24, so as to compensate the position deviation caused by the manufacturing tolerance and assembly error of the part, and ensure the accuracy of the welding position; specifically, through the conductive contact of the probe 24 with the sidewall of the workpiece, the height of the probe 24 is adjusted through the welding mechanical arm 21, until the probe 24 moves to the weld position and is de-energized, and the position information at this time is recorded by the welding mechanical arm 21, that is, the actual edge position of the weld is obtained. After the edge finding of the probe 24 is completed, the probe 24 is automatically retracted, and the welding gun is switched to the welding state; under the rotation cooperation of the servo rotary table 162, the welding point positions of the assembled electron gun 4, the collecting electrode 5 and the high-frequency component 6 are rotationally welded; at the same time, the gas blowing protection pipe 25 can continuously provide argon protection during the welding process to prevent the weld from being oxidized.

[0045] In specific implementation, as shown in Figure 10 The gas tightness detection mechanism includes a support 19 arranged on one side of the frame body 11, a transverse clamping groove 110 and a telescopic rotary cylinder 111 are arranged on the support 19, a helium detection connector 112 is clamped in the transverse clamping groove 110, a pressing block 113 for tightly pressing the helium detection connector 112 in the transverse clamping groove 110 is arranged at the telescopic end of the telescopic rotary cylinder 111, and the helium detection connector 112 is connected with an external helium detection device through a metal hose; in the scheme, after the whole tube welding of the gyrotron is completed, the helium detection connector 112 can be sent to the helium detection port on the whole tube of the gyrotron, helium is blown into the welding point position through the gas blowing protection pipe 25, and whether there is helium leakage is detected through the helium detection device, so that the sealing performance of the whole tube of the gyrotron can be effectively judged.

[0046] The working process of the scheme will be specifically described below. 1. The electron gun 4 assembly welding process: the electron gun 4 is placed upside down on the servo rotary table 162 - the servo clamping jaw 3 on the electron gun clamping sliding table 151 is lowered and clamps the electron gun 4 - the double-head pneumatic cylinder 163 drives the arc-shaped clamping block 164 to clamp the electron gun 4 concentrically - the conductive copper fork 154 is extended and contacts the electron gun 4 - the servo clamping jaw 3 is loosened - 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 safe position - the conductive copper fork 154 is retracted - the servo clamping jaw 3 returns to the waiting position - the arc-shaped clamping block 164 loosens the electron gun 4 - the electron gun 4 is turned over and placed right side up - the servo clamping jaw 3 is lowered and clamps the electron gun 4 - the arc-shaped clamping block 164 clamps the electron gun 4 again - the electron gun 4 assembly welding process is completed.

[0047] 2. The high-frequency component 6 assembly process: the servo clamping jaws 3 on the upper clamping sliding table 141 and the lower clamping sliding table 142 move to the material receiving position - the high-frequency component 6 is sent to the two servo clamping jaws 3 - the two servo clamping jaws 3 are lowered and the lower end of the high-frequency component 6 is fitted into the upper end of the electron gun 4 - the high-frequency assembly process is completed.

[0048] 3. The collector 5 assembly and compression process: the servo clamping jaw 3 on the collector clamping sliding table 132 moves to the material receiving position - the rotary compression head 133 is raised - the collector 5 is sent to the servo clamping jaw 3 - the servo clamping jaw 3 is lowered and the lower end of the collector 5 is fitted into the upper end of the high-frequency component 6 - the rotary compression head 133 is lowered to compress the collector 5 - the collector 5 assembly process is completed.

[0049] 4. The coaxiality detection process: after the completion of the rotary tube assembly - all servo clamping jaws 3 are slightly loosened - the servo linear module 17 moves the infrared distance meter 18 to the detection point to measure the distance respectively - after rotating the rotary tube by 45 degrees, the measurement is repeated 8 times - all the measured data are integrated to obtain the coaxiality precision.

[0050] 5. The probe 24 conductive tracing process: after the coaxiality detection is qualified, the probe 24 is automatically extended by the probe telescopic pneumatic cylinder 27 - the probe 24 conducts conductive tracing on the workpiece weld - the actual edge position data of the workpiece weld is identified - the probe 24 conductive tracing process is completed; in addition, whether to perform the probe 24 conductive tracing process can also be selected according to the actual situation before the filament bottom cover is welded with the electron gun 4.

[0051] 6. The rotary tube assembly welding process: the welding mechanism 2 moves to the spot welding point to perform spot welding - the welding mechanism 2 moves to the full welding point to perform full welding - the servo rotary table 162 rotates to complete the welding - the welding mechanism 2 returns to the safe position - the rotary tube assembly welding process is completed.

[0052] 7. The airtight helium leak detection process: the telescopic rotary air cylinder 111 is loosened - the feeding and discharging mechanism sends the helium detection connector 112 to the helium detection port for docking - the helium detection device operates - the air blowing protection tube 25 moves to the outside of the helium detection point and blows out helium - the helium detection device detects whether there is helium leakage - after the helium detection device completes detection - the welding mechanism 2 returns to the waiting position - the helium detection connector 112 is sent back - the telescopic rotary air cylinder 111 clamps the helium detection connector 112 - the airtight helium leak detection process is completed.

[0053] In summary, the present scheme highly integrates the assembling mechanism 1, the coaxiality detection mechanism and the helium detection mechanism on one platform. After clamping the electron gun 4, the collecting electrode 5 and the high-frequency component 6, all key processes from component assembling, pressing, coaxiality detection, welding and airtight helium leak detection can be sequentially completed, which greatly shortens the production cycle, completely eliminates the precision loss caused by multiple transfers and clamping, and improves the one-time processing yield of products. Meanwhile, the assembling mechanism 1 can realize accurate assembly of different sizes of electron guns 4, collecting electrodes 5 and high-frequency components 6, and adopts modular integrated design, with collaborative operation of each functional unit, which meets the production needs of gyrotrons of multiple specifications.

[0054] Although the specific embodiments of the application are described in detail with reference to the accompanying drawings, it should not be understood as limiting the protection scope of the patent; various modifications and changes made by those skilled in the art within the scope described in the claims are still within the protection scope of the 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. A coaxiality detection mechanism and a gas tightness detection mechanism are arranged on the assembly mechanism.

2. The fixture for use in the final assembly and welding of a gyrotron tube according to claim 1, characterized in that 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.

3. The fixture for use in the final assembly and welding of a gyrotron tube according to claim 1, characterized in that 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.

4. The fixture for use in the final assembly and welding of a gyrotron tube according to claim 1, characterized in that 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 having an extension end connected with the electron gun clamping sliding table, a servo clamping jaw and a horizontal extension cylinder above the servo clamping jaw are arranged on the electron gun clamping sliding table, and a conductive copper fork is arranged at the extension end of the horizontal extension cylinder.

5. The fixture for assembling and welding a gyrotron tube according to any of claims 2-4, characterized in that The servo clamping jaw comprises two V-shaped clamping blocks for centering clamping the gyrotron component.

6. The fixture for use in the final assembly and welding of a gyrotron tube according to claim 1, characterized in that 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 extension ends of the double-head cylinder, and the two arc-shaped clamping blocks are oppositely arranged.

7. The fixture for use in the final assembly and welding of a gyrotron tube according to claim 6, characterized in that 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.

8. 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.

9. The fixture for use in the final assembly and welding of a gyrotron tube according to claim 1, characterized in that 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.

10. 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.

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