A fixing device applied to the assembly welding of an electron gun

Abstract

The utility model discloses a kind of fixing device applied to electron gun assembly welding, belong to electron gun assembly welding automation production equipment technical field;The fixing device has assembly table subassembly and press pressing subassembly, the positioning rotary table in assembly table subassembly can be 360 degrees rotation and be convenient for subsequent electron gun part welding, positioning clamping mechanism is clamped and fixed to the component mold of electron gun part;Assembly clamping jaw mechanism on lifting transplanting mechanism is assembled to electron gun part;Rotary pressing head in press pressing subassembly exerts pressure to electron gun part, ensure that electron gun part always keeps stable position and good contact state during assembly and welding process;The synergic effect of assembly table subassembly and press pressing subassembly, the accurate positioning and stable pressure of electron gun spare part are realized, effectively solve the problem that tooling fixture operation is complicated, assembly efficiency is low and new pipe type development cost is high in existing electron gun assembly process, improve the assembly efficiency and precision of electron gun.

Description

Technical Field

[0001] This utility model belongs to the technical field of automated production equipment for electron gun assembly and welding, and specifically relates to a fixing device used in electron gun assembly and welding. Background Technology

[0002] An electron gun used in vacuum tube devices is a device that generates high-energy electrons. It is the energy source for generating high-energy microwaves in vacuum tube devices and is widely used in various microwave tubes such as gyrotrons, klystrons, and traveling wave tubes. Working principle: The electron gun used in gyrotrons employs a thermionic cathode. The tungsten substrate of the cathode stores a large amount of active material. When a high voltage of tens of thousands of volts is applied between the electron gun and the high frequency, and the cathode is heated to about 1000°C, a continuous stream of high-energy electrons is generated and injected into the high-frequency system, enhancing the intensity of the microwave electromagnetic field in the device.

[0003] Currently, the assembly of electron guns primarily relies on manual assembly. Due to the complex structure of the electron gun, the concentricity requirements for the assembly of various components are extremely high, necessitating the use of numerous tooling fixtures to ensure assembly accuracy. However, the assembly and disassembly of these tooling fixtures are extremely cumbersome. Each assembly step requires repeated installation and removal of the corresponding fixtures, which significantly impacts the ease of electron gun assembly and consequently leads to low assembly efficiency.

[0004] Furthermore, with the continuous development of electronic technology, new electron gun tube types are constantly emerging. For each new tube type, a large number of new tooling fixtures need to be manufactured to match, which not only increases production preparation time and costs but also wastes resources. To effectively solve these problems and achieve efficient and precise assembly of electron guns, designing an automated production line for electron gun assembly and welding has become an inevitable trend in the industry. A fixing device used for electron gun assembly and welding, as an important component of this automated production line, plays a crucial role in improving assembly efficiency and accuracy. Utility Model Content

[0005] Based on the problems existing in the above-mentioned background technology, this utility model proposes a fixing device for electron gun assembly and welding, which is adapted to the automation of electron gun assembly and welding, so as to solve the problems of cumbersome operation of tooling fixtures, low assembly efficiency and high cost of new tube development in the existing electron gun assembly process, and realize efficient and precise assembly of electron gun.

[0006] The embodiments of this utility model are implemented as follows: This utility model provides a fixing device for electron gun assembly and welding, which is set on the base of an automated production equipment for electron gun assembly and welding. The fixing device includes an assembly table assembly and a press pressing assembly. The assembly table assembly includes a positioning rotary table and a lifting and transferring mechanism set on the base. The positioning rotary table is provided with a positioning clamping mechanism, and the lifting and transferring mechanism is provided with an assembly gripper mechanism located on the top of the positioning rotary table. The press pressing assembly includes a press translation and transplanting mechanism mounted on the lifting and transplanting mechanism. The press translation and transplanting mechanism is equipped with a press structure, and a rotating press head located at the bottom of the press structure is positioned on the top of the positioning rotary table.

[0007] Furthermore, the positioning rotary table has a cylindrical structure, and a drive motor is provided at the bottom of the positioning rotary table, which drives the positioning rotary table to rotate around its own axis.

[0008] Furthermore, as a specific arrangement of the positioning and clamping mechanism, the positioning and clamping mechanism includes a first V-shaped clamping block, a second V-shaped clamping block, and a driving cylinder; the V-shaped notches in the first V-shaped clamping block and the second V-shaped clamping block are arranged opposite to each other, and the first V-shaped clamping block is fixedly arranged on the upper end surface of the positioning rotary table; a fixed base plate is provided on one side of the top of the positioning rotary table, and the driving cylinder is provided on the fixed base plate. The end of the piston rod of the driving cylinder is fixedly connected to the second V-shaped clamping block, and the extension and retraction of the piston rod of the driving cylinder causes the second V-shaped clamping block to move closer to or away from the first V-shaped clamping block.

[0009] Furthermore, as a specific arrangement of the lifting and transplanting mechanism, the lifting and transplanting mechanism includes a lifting platform disposed on one side of the positioning rotary table and fixed to the base at its bottom. Two first slide rails are vertically spaced on one side end face of the lifting platform. A first slider is slidably connected to each first slide rail. A first linear module fixedly connected to the side of the lifting platform is disposed between the two first slide rails. The assembly gripper mechanism includes a support plate disposed between the two first sliders and the drive slider in the first linear module. The two sides of one end face of the support plate are fixedly connected to the two first sliders respectively, and the middle part of one end face of the support plate is fixedly connected to the drive slider in the first linear module. A base plate is disposed on the top of the support plate, and a double-nut reverse linear module is disposed on the base plate. A pair of V-shaped clamps are disposed on the double-nut reverse linear module, and the V-shaped openings of the pair of V-shaped clamps are arranged opposite to each other. A pressure sensor is disposed on one of the V-shaped clamps. The double-nut reverse linear module drives the pair of V-shaped clamps to move simultaneously towards or away from each other.

[0010] Furthermore, as a specific arrangement of the press translation and transplanting mechanism, the press translation and transplanting mechanism includes a press fixing plate horizontally arranged on the top of the lifting platform. Two second slide rails and a second linear module are arranged parallel to each other on the upper end surface of the press fixing plate. Both the two second slide rails and the second linear module are arranged facing the positioning rotary table. A second slider is slidably connected to each of the two second slide rails. A drive slider is provided on the second linear module. The press structure includes a bottom connecting plate. The lower end face of the bottom connecting plate is fixedly connected to the two second sliders and the drive sliders in the second linear module. A press upright plate is provided on the upper end face of the bottom connecting plate. A linear electric cylinder is vertically provided on one side end face of the press upright plate. The push rod in the linear electric cylinder is vertically oriented and rotatably connected to the rotating press head.

[0011] Furthermore, as a specific configuration of the rotary pressure head, the rotary pressure head includes a fixed part and a rotating part, both of which are cylindrical in structure. The upper end face of the fixed part is fixedly connected to the end of the push rod in the linear electric cylinder. A rotary bearing is provided on the lower end face of the fixed part. The rotating part is located at the bottom of the fixed part, and a connecting shaft is provided on the upper end face of the rotating part, which is fixedly connected to the inner ring of the rotary bearing.

[0012] The beneficial effects of this utility model are: 1. The fixing device for electron gun assembly and welding provided by this utility model includes an assembly table assembly and a press assembly. The positioning rotary table in the assembly table assembly can rotate 360 ​​degrees to facilitate the subsequent welding of electron gun components, and the positioning clamping mechanism clamps and fixes the component mold of the electron gun component. The assembly claw mechanism on the lifting and transferring mechanism performs vertical assembly operations on the electron gun component. The rotating pressure head in the press assembly applies a preset pressure to the electron gun component to ensure that the electron gun component maintains a stable position and good contact state during assembly and welding. The synergistic effect of the assembly table assembly and the press assembly realizes the precise positioning and stable clamping of electron gun components, effectively solving the problems of cumbersome tooling and fixture operation, low assembly efficiency, and high development cost of new tube types in the existing electron gun assembly process. It improves the assembly efficiency and accuracy of electron guns and has significant economic and social benefits.

[0013] 2. The fixing device for electron gun assembly and welding provided by this utility model can clamp and fix electron gun components of different diameters through the first V-shaped clamping block and the second V-shaped clamping block in the positioning clamping mechanism; the assembly claw mechanism can clamp the component molds of electron gun components of different diameters, and the clamped electron gun components are sequentially assembled with the component molds in the positioning clamping mechanism through the lifting and transfer mechanism, thereby reducing errors in the assembly process and improving the assembly and welding accuracy. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. 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 this utility model will become clearer through the 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 idea of ​​this utility model.

[0015] Figure 1 This is a three-dimensional structural diagram of a fixing device used for electron gun assembly and welding, mounted on a base.

[0016] Figure 2 This is a three-dimensional structural diagram of the assembly platform components.

[0017] Figure 3 This is a three-dimensional structural diagram of the pressing component of the press.

[0018] Figure 4 This is a schematic diagram of the rotating pressure head.

[0019] The components include: 1. Base; 2. Assembly table assembly; 21. Positioning rotary table; 22. Lifting and transplanting mechanism; 221. Lifting platform; 222. First slide rail; 223. First linear module; 23. Positioning and clamping mechanism; 231. First V-shaped clamping block; 232. Second V-shaped clamping block; 233. Drive cylinder; 234. Fixed base plate; 24. Assembly gripper mechanism; 241. Support plate; 242. Base plate; 243. Double... Nut reverse linear module; 244, V-shaped clamping block; 3, press pressing assembly; 31, press translation and transfer mechanism; 311, press fixing plate; 312, second slide rail; 313, second linear module; 32, press structure; 321, bottom connecting plate; 322, press upright plate; 323, linear electric cylinder; 33, rotating press head; 331, fixing part; 332, rotating part; 333, rotating bearing; 334, connecting shaft. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present 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 present invention without inventive effort are within the scope of protection of the present invention.

[0022] 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.

[0023] Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0024] Please refer to Figure 1 As shown, this utility model provides a fixing device for electron gun assembly and welding, which is installed on the base 1 of an automated production equipment for electron gun assembly and welding. The fixing device includes an assembly table assembly 2 and a press pressing assembly 3. The assembly table assembly 2 includes a positioning rotary table 21 and a lifting and transferring mechanism 22 installed on the base 1. The positioning rotary table 21 is provided with a positioning clamping mechanism 23, and the lifting and transferring mechanism 22 is provided with an assembly gripper mechanism 24 located on the top of the positioning rotary table 21. The positioning clamping mechanism 23 fixes the component mold of the electron gun component to the top of the positioning rotary table 21. The assembly gripper mechanism 24 can clamp and fix electron gun components of different diameters. The assembly gripper mechanism 24 clamps the electron gun component and assembles the electron gun component with the component mold through the lifting and transferring mechanism 22, reducing errors in the assembly process and improving the assembly and welding accuracy.

[0025] The press assembly 3 includes a press translation mechanism 31 mounted on the lifting and transferring mechanism 22. A press structure 32 is mounted on the press translation mechanism 31, and a rotating press head 33 is located at the bottom of the press structure 32 and positioned on top of the positioning rotary table 21. The press translation mechanism 31 moves the press structure 32 and the rotating press head 33 to the top of the electron gun component. Simultaneously, the rotating press head 33 moves downward to apply a preset pressure to the electron gun component, ensuring that the electron gun component maintains a stable position and good contact during assembly and welding.

[0026] Furthermore, the positioning rotary table 21 has a cylindrical structure, and a drive motor is provided at the bottom of the positioning rotary table 21. The drive motor drives the positioning rotary table 21 to rotate around its own axis, thereby realizing the rotation of the positioning rotary table 21 degrees to facilitate the subsequent welding of the electron gun components.

[0027] Specifically, such as Figure 1 and Figure 2 As shown, as a specific arrangement of the positioning and clamping mechanism 23, the positioning and clamping mechanism 23 includes a first V-shaped clamping block 231, a second V-shaped clamping block 232, and a driving cylinder 233; the V-shaped notches in the first V-shaped clamping block 231 and the second V-shaped clamping block 232 are arranged opposite to each other, and the first V-shaped clamping block 231 is fixedly arranged on the upper end surface of the positioning rotary table 21; a fixed base plate 234 is provided on one side of the top of the positioning rotary table 21, and the driving cylinder 233 is provided on the fixed base plate 234. The end of the piston rod of the driving cylinder 233 is fixedly connected to the second V-shaped clamping block 232, and the extension and retraction of the piston rod of the driving cylinder 233 causes the second V-shaped clamping block 232 to move closer to or away from the first V-shaped clamping block 231. The working principle of the positioning and clamping mechanism 23 is as follows: When the component mold of the electron gun component is being prepared, the component mold of the electron gun component is placed between the first V-shaped clamping block 231 and the second V-shaped clamping block 232 by the robot. The piston rod of the driving cylinder 233 extends, causing the second V-shaped clamping block 232 to move closer to the first V-shaped clamping block 231, thereby clamping and fixing the component mold of the electron gun component on the top of the positioning rotary table 21. Due to the characteristics of the V-shaped notches in the first V-shaped clamping block 231 and the second V-shaped clamping block 232, component molds of electron gun components with different diameters can be clamped and fixed. The assembly gripper mechanism 24 can clamp electron gun components of different diameters, and the clamped electron gun components are sequentially assembled with the component mold parts in the positioning and clamping mechanism 23 by the lifting and transferring mechanism 22, reducing errors in the assembly process and improving the assembly and welding accuracy.

[0028] Furthermore, as a specific arrangement of the lifting and transplanting mechanism 22, the lifting and transplanting mechanism 22 includes a lifting platform 221 disposed on one side of the positioning rotary table 21 and fixed to the base 1 at its bottom. Two first slide rails 222 are vertically spaced on one side end face of the lifting platform 221. A first slider is slidably connected to each first slide rail 222. A first linear module 223 fixedly connected to the side of the lifting platform 221 is disposed between the two first slide rails 222. The assembly gripper mechanism 24 includes a support plate 241 disposed between the two first sliders and the drive slider in the first linear module 223. The two sides of one end face of the support plate 241 are fixedly connected to the two first sliders respectively, and the middle part of one end face of the support plate 241 is fixedly connected to the drive slider in the first linear module 223. A base plate 242 is disposed on the top of the support plate 241. A double-nut reverse linear module 243 is disposed on the base plate 242. A pair of V-shaped clamping blocks 244 are disposed on the double-nut reverse linear module 243. The V-shaped openings of the pair of V-shaped clamping blocks 244 are arranged opposite to each other. A pressure sensor is disposed on one of the V-shaped clamping blocks 244. The double-nut reverse linear module 243 drives the pair of V-shaped clamping blocks 244 to move simultaneously towards or away from each other.

[0029] The working principle of the lifting and transplanting mechanism 22 and the assembly gripper mechanism 24 is as follows: the first linear module 223 is activated to move, thereby realizing the reciprocating linear motion of the assembly gripper mechanism 24 in the vertical direction to adapt to the electron gun components with different assembly height requirements; the double nut reverse linear module 243 is activated to realize the V-shaped clamping blocks 244 moving towards or away from each other, thereby completing the action of clamping or releasing the electron gun components.

[0030] Furthermore, such as Figure 1 and Figure 3 As shown, in one specific configuration of the press translation and transplanting mechanism 31, the press translation and transplanting mechanism 31 includes a press fixing plate 311 horizontally disposed on the top of the lifting platform 221. Two second slide rails 312 and a second linear module 313 are arranged parallel to each other on the upper end surface of the press fixing plate 311. Both the two second slide rails 312 and the second linear module 313 are arranged towards the positioning rotary table 21. A second slider is slidably connected to each of the two second slide rails 312. A drive slider is disposed on the second linear module 313. The press structure 32 includes a bottom connecting plate 321. The lower end face of the bottom connecting plate 321 is fixedly connected to the two second sliders and the drive sliders in the second linear module 313. A press upright plate 322 is provided on the upper end face of the bottom connecting plate 321. A linear electric cylinder 323 is vertically provided on one side end face of the press upright plate 322. The push rod in the linear electric cylinder 323 is vertically oriented and a rotating press head 33 is rotatably connected to it.

[0031] The working principle of the press translation and transfer mechanism 31 and the press structure 32 is as follows: the second linear module 313 is started, which drives the entire press structure 32 to move in the horizontal direction until the rotating pressure head 33 is directly above the electron gun component. Then the second linear module 313 stops, and the push rod in the linear electric cylinder 323 extends downward, driving the rotating pressure head 33 to press the top of the electron gun component, applying a preset pressure to the electron gun component, so as to ensure that the electron gun component always maintains a stable position and good contact state during the assembly and welding process.

[0032] Furthermore, such as Figure 3 and Figure 4 As shown, in one specific configuration of the rotary pressure head 33, the rotary pressure head 33 includes a fixed part 331 and a rotating part 332, both of which are cylindrical. The upper end face of the fixed part 331 is fixedly connected to the end of the push rod in the linear electric cylinder 323. A rotary bearing 333 is provided on the lower end face of the fixed part 331. The rotating part 332 is located at the bottom of the fixed part 331, and a connecting shaft 334 is provided on the upper end face of the rotating part 332, which is fixedly connected to the inner ring of the rotary bearing 333. When the rotary pressure head 33 presses the electron gun component, the rotating part 332 presses the top of the electron gun component, and the rotating part 332 can rotate with the electron gun component, avoiding scratches on the top of the electron gun component and improving the product's appearance quality.

[0033] The working principle of the fixing device for electron gun assembly and welding provided by this utility model is as follows: When it is necessary to assemble and weld electron gun components, the robot first places the component mold into the positioning clamping mechanism 23, and then the drive cylinder 233 is activated so that the first V-shaped clamping block 231 and the second V-shaped clamping block 232 clamp and position the component mold; then the robot places a single electron gun component into the assembly gripper mechanism 24, and the double nut reverse linear module 243 is activated to drive a pair of V-shaped clamping blocks 244 to clamp the single electron gun component. Then the lifting and transferring mechanism 22... A linear module 223 moves downwards, assembling a single electron gun component onto a component mold. If the single electron gun component requires welding, the lifting and transfer mechanism 22 drives the assembly gripper mechanism 24 to reset. Then, the press translation and transfer mechanism 31 moves the press structure 32 and the rotating pressure head 33 to the top of the electron gun component. The rotating pressure head 33 moves downwards to apply a preset pressure to the electron gun component. Finally, the positioning rotary table 21 is activated, causing the component mold and the single electron gun component on top of the positioning rotary table 21 to rotate circumferentially, facilitating circumferential laser welding of the single electron gun component by the welding robot. The above operation is repeated until all components of the electron gun component are assembled and welded.

[0034] In summary, the fixing device for electron gun assembly and welding provided by this utility model, through the synergistic effect of the assembly table component 2 and the press pressing component 3, achieves precise positioning and stable clamping of electron gun components. It effectively solves the problems of cumbersome tooling and fixture operation, low assembly efficiency, and high development cost of new tube types in the existing electron gun assembly process, and improves the assembly efficiency and accuracy of electron guns, with significant economic and social benefits.

[0035] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fixing device for electron gun assembly and welding, mounted on the base of an automated production line for electron gun assembly and welding, characterized in that, The fixing device includes an assembly table assembly and a press assembly; the assembly table assembly includes a positioning rotary table and a lifting and transplanting mechanism disposed on the base; the positioning rotary table is provided with a positioning clamping mechanism, and the lifting and transplanting mechanism is provided with an assembly gripper mechanism located on the top of the positioning rotary table; The press pressing assembly includes a press translation and transplanting mechanism mounted on the lifting and transplanting mechanism. The press translation and transplanting mechanism is equipped with a press structure, and a rotating press head located at the bottom of the press structure is positioned on the top of the positioning rotary table.

2. The fixing device for electron gun assembly and welding according to claim 1, characterized in that, The positioning rotary table has a cylindrical structure, and a drive motor is installed at the bottom of the positioning rotary table. The drive motor drives the positioning rotary table to rotate around its own axis.

3. The fixing device for electron gun assembly and welding according to claim 2, characterized in that, The positioning and clamping mechanism includes a first V-shaped clamping block, a second V-shaped clamping block, and a driving cylinder; the V-shaped notches in the first and second V-shaped clamping blocks are arranged opposite each other, and the first V-shaped clamping block is fixedly mounted on the upper surface of the positioning rotary table; a fixed base plate is provided on one side of the top of the positioning rotary table, and the driving cylinder is provided on the fixed base plate. The end of the piston rod of the driving cylinder is fixedly connected to the second V-shaped clamping block, and the extension and retraction of the piston rod of the driving cylinder causes the second V-shaped clamping block to move closer to or away from the first V-shaped clamping block.

4. The fixing device for electron gun assembly and welding according to claim 1, characterized in that, The lifting and transplanting mechanism includes a lifting platform disposed on one side of the positioning rotary table and fixed to the base at its bottom. Two first slide rails are vertically spaced on one side end face of the lifting platform. A first slider is slidably connected to each first slide rail. A first linear module is disposed between the two first slide rails and fixedly connected to the side of the lifting platform. The assembly gripper mechanism includes a support plate disposed between the two first sliders and the drive slider in the first linear module. The two sides of one end face of the support plate are fixedly connected to the two first sliders respectively, and the middle part of one end face of the support plate is fixedly connected to the drive slider in the first linear module. A base plate is disposed on the top of the support plate, and a double-nut reverse linear module is disposed on the base plate. A pair of V-shaped clamps are disposed on the double-nut reverse linear module, and the V-shaped openings of the pair of V-shaped clamps are arranged opposite to each other. A pressure sensor is disposed on one of the V-shaped clamps. The double-nut reverse linear module drives the pair of V-shaped clamps to move simultaneously towards or away from each other.

5. The fixing device for electron gun assembly and welding according to claim 4, characterized in that, The press translation and transplanting mechanism includes a press fixing plate horizontally set on the top of the lifting platform. Two second slide rails and a second linear module are arranged parallel to each other on the upper end surface of the press fixing plate. Both the two second slide rails and the second linear module are arranged facing the positioning rotary table. A second slider is slidably connected to each of the two second slide rails. A drive slider is provided on the second linear module. The press structure includes a bottom connecting plate. The lower end face of the bottom connecting plate is fixedly connected to the two second sliders and the drive sliders in the second linear module. A press upright plate is provided on the upper end face of the bottom connecting plate. A linear electric cylinder is vertically provided on one side end face of the press upright plate. The push rod in the linear electric cylinder is vertically oriented and rotatably connected to the rotating press head.

6. The fixing device for electron gun assembly welding according to claim 5, characterized in that, The rotary pressure head includes a fixed part and a rotating part, both of which are cylindrical. The upper end face of the fixed part is fixedly connected to the end of the push rod in the linear electric cylinder. A rotary bearing is provided on the lower end face of the fixed part. The rotating part is located at the bottom of the fixed part. A connecting shaft is provided on the upper end face of the rotating part and is fixedly connected to the inner ring of the rotary bearing.

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