A welding fixture for a vacuum amplifier

CN224642673UActive Publication Date: 2026-08-18YUNI (SHANGHAI) SEMICON TECH CO LTD
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Patent Information

Application Number
CN202522056580.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-24
Publication Date
2026-08-18
Estimated Expiration
2035-09-24

AI Technical Summary

Technical Problem

[0005]本实用新型的目的在于提供一种真空放大器的焊接工装,为解决现有真空放大器的焊接工装在实际使用过程中,真空放大器在制作过程中两端的接头需要根据定制化需求的连接方式进行制作,制作就离不开焊接,因阀体尺寸要求比较严苛,常规焊接方式满足不了焊接空间的要求,并且对焊缝的焊接宽度,凹凸度,内部孔径焊接凹凸度氧化变色等都有严格的要求,因此在不断调整对接时容易造成定位偏移影响后续焊接精度的问题

Benefits of technology

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: The welding fixture for the vacuum amplifier, through the separate main adapter fixture and the auxiliary adapter fixture, positions vacuum amplifier components of different specifications and shapes, and achieves secondary locking by the main positioning slide and the auxiliary positioning slide, so as to improve the accuracy and stability of the rotating circumferential welding of the welding pin assembly. The specific details are as follows:

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Abstract

The utility model discloses a kind of welding tool of vacuum amplifier, including butt joint platform, and the butt joint slide bar of fixed installation in butt joint platform inside left and right two sides;Further include: the upper side of butt joint platform is provided with positioning mechanism, and positioning mechanism includes main positioning slide plate and vice positioning slide plate, and the inside center position of main positioning slide plate and vice positioning slide plate is all set with positioning sliding groove;The upper side of butt joint platform is provided with adaptive mechanism, and adaptive mechanism includes main adaptive tool and vice adaptive tool, and main adaptive tool and vice adaptive tool are all semicircular mechanism distribution of upper and lower separation type.The welding tool of vacuum amplifier, by separation type main adaptive tool and vice adaptive tool, positioning is carried out to different specifications, shape vacuum amplifier component, and secondary locking is realized by main positioning slide plate and vice positioning slide plate, so as to improve the precision and stability of pin assembly rotating circumferential welding.
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Description

Technical Field

[0001] This utility model relates to the field of vacuum amplifier processing technology, specifically to a welding fixture for a vacuum amplifier. Background Technology

[0002] A vacuum amplifier is an electronic device that operates in a vacuum environment, primarily used to amplify electrical signals or power. Its core function is to boost the voltage or power of the input signal using components such as vacuum tubes or transistors to meet specific application requirements. In vacuum technology, these devices are commonly used in high-precision control scenarios, such as vacuum leak detection systems or signal processing stages in laser welding equipment. During the welding process, positioning fixtures are used to achieve lateral adjustment and center alignment, ensuring that the workpiece maintains a precise position during welding and avoiding deviations caused by thermal deformation or external forces.

[0003] In actual use, the welding fixtures for existing vacuum amplifiers require the connectors at both ends to be made according to customized connection requirements during the manufacturing process. This process inevitably involves welding. Due to the stringent requirements for valve body dimensions, conventional welding methods cannot meet the welding space requirements. Furthermore, there are strict requirements for weld width, unevenness, internal hole diameter, welding unevenness, oxidation discoloration, etc. Therefore, continuous adjustment of the connection can easily cause positioning misalignment, affecting the subsequent welding accuracy.

[0004] Therefore, we propose a welding fixture for vacuum amplifiers to address the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a welding fixture for a vacuum amplifier. In order to solve the problem that in the actual use of existing vacuum amplifier welding fixtures, the connectors at both ends of the vacuum amplifier need to be made according to the customized connection requirements during the manufacturing process, which is inseparable from welding. Because the valve body size requirements are relatively strict, conventional welding methods cannot meet the welding space requirements. Furthermore, there are strict requirements for the weld width, concavity and convexity, internal hole diameter, welding concavity and convexity, oxidation and discoloration, etc. Therefore, the positioning offset is easily caused during the continuous adjustment of the connection, which affects the subsequent welding accuracy.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a welding fixture for a vacuum amplifier, including a docking platform and docking slide rods fixedly installed on the left and right sides inside the docking platform;

[0007] It also includes: positioning mechanisms are provided on both the front and rear sides above the docking platform, and the positioning mechanisms include a main positioning slide and a secondary positioning slide;

[0008] Positioning grooves are provided at the center of the interior of both the main positioning slide and the secondary positioning slide;

[0009] The docking platform is equipped with adapter mechanisms on both the front and rear sides above it. Each adapter mechanism includes a main adapter fixture and a secondary adapter fixture, and both the main adapter fixture and the secondary adapter fixture are arranged in a semi-circular structure that is separated from the main adapter fixture.

[0010] Preferably, the bottom ends of the main positioning slide and the auxiliary positioning slide of the positioning mechanism are slidably connected to the outer wall of the docking slide rod, and the main positioning slide and the auxiliary positioning slide are arranged in the same specification but opposite directions of movement. The main positioning slide and the auxiliary positioning slide are respectively positioned and locked to the main adapter tooling and the auxiliary adapter tooling of the adapter mechanism.

[0011] Preferably, the adapter mechanism includes an adapter cavity, which is located inside the main adapter fixture and the auxiliary adapter fixture. The vacuum amplifier assembly is installed inside the main adapter fixture and the auxiliary adapter fixture through the adapter cavity.

[0012] Preferably, the adapter mechanism includes a support bracket, which is fixedly installed on the lower left and right sides of the main adapter fixture and the auxiliary adapter fixture on the front and rear sides, and the bottom of the symmetrically arranged support bracket is fixedly installed on the top surface of the docking platform.

[0013] Preferably, the adapter mechanism includes a separation slide bar, which is fixedly installed at the middle outer ends of the main adapter fixture and the auxiliary adapter fixture respectively. A contact spring is sleeved on the upper end of the separation slide bar, so that the main adapter fixture and the auxiliary adapter fixture, which are of a split structure, move closer to each other to clamp the vacuum amplifier assembly.

[0014] Preferably, a welding mechanism is provided in the middle of the docking platform, and the welding mechanism includes a welding positioning ring. The welding positioning ring is lockably installed in the middle of the top surface of the docking platform, and a drive gear ring is rotatably installed inside the welding positioning ring. A welding needle assembly is fixedly installed inside the drive gear ring.

[0015] Preferably, the welding mechanism includes a drive gear, and the drive gear bearing is rotatably disposed on the top surface of the welding positioning ring, and the drive gear is meshed with the drive gear ring, and the inner end of the welding needle assembly corresponds to the welding point of the vacuum amplifier assembly.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: The welding fixture for the vacuum amplifier, through the separate main adapter fixture and the auxiliary adapter fixture, positions vacuum amplifier components of different specifications and shapes, and achieves secondary locking by the main positioning slide and the auxiliary positioning slide, so as to improve the accuracy and stability of the rotating circumferential welding of the welding pin assembly. The specific details are as follows:

[0017] 1. By extracting the main and secondary adapter fixtures of the split structure upwards, the upper part of the fixture is moved by the sliding separation rod, and the adapter cavity is opened after the contact spring is squeezed. The vacuum amplifier assembly is then placed and installed through the adapter cavity.

[0018] The main and auxiliary adapter fixtures with a separate connection structure are installed and connected to vacuum amplifier components of different specifications and shapes through the adapter cavity, and the main and auxiliary adapter fixtures after being combined by the elastic structure are used to position the vacuum amplifier components.

[0019] 2. The docking slide bar installed inside the docking platform limits the main positioning slide plate and the auxiliary positioning slide bar. During the positioning process for the adapter mechanism, the main positioning slide plate and the auxiliary positioning slide plate slide inward synchronously, and then respectively fit onto the outside of the main adapter fixture and the auxiliary adapter fixture to achieve secondary positioning and locking, improve the stability during welding and avoid displacement and misalignment.

[0020] 3. By unlocking the welding positioning ring, the welding pin assembly is moved back and forth above the docking platform, thereby moving the inner welding pin assembly to the welding point of the vacuum amplifier assembly on both the front and rear sides. Then, the drive gear rotates and meshes with the drive gear ring, causing the drive gear ring to rotate the inner welding pin assembly, so as to perform circumferential rotation welding on the vacuum amplifier assembly, thereby improving welding accuracy and efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0022] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0023] Figure 3 This is a schematic diagram of the structure of the positioning mechanism and the adapter mechanism after separation.

[0024] Figure 4 This is a three-dimensional structural diagram of the adapter mechanism of this utility model;

[0025] Figure 5 This is a schematic diagram of the structure for installing the welding positioning ring of this utility model;

[0026] Figure 6 This utility model Figure 5 Enlarged structural diagram at point B.

[0027] In the diagram: 1. Docking platform; 2. Docking slide bar; 3. Main positioning slide plate; 4. Secondary positioning slide plate; 5. Positioning slide groove; 6. Main adapter tooling; 7. Secondary adapter tooling; 8. Adapter cavity; 9. Vacuum amplifier assembly; 10. Bearing bracket; 11. Separation slide bar; 12. Contact spring; 13. Welding positioning ring; 14. Drive gear ring; 15. Welding pin assembly; 16. Drive gear. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1-6 The present invention provides the following technical solution:

[0030] Example 1: To address the problems existing in the welding of current vacuum amplifiers, this example discloses the following technical solution: a welding fixture for a vacuum amplifier, including a docking platform 1. Adaptor mechanisms are provided on both the front and rear sides of the docking platform 1. Each adapter mechanism includes a main adapter fixture 6 and a secondary adapter fixture 7, both of which are arranged in a semi-circular, vertically separated configuration. The adapter mechanism includes an adapter cavity 8, which is located inside the main adapter fixture 6 and the secondary adapter fixture 7. The vacuum amplifier assembly 9 is installed inside the main adapter fixture 6 and the secondary adapter fixture 7 via the adapter cavity 8.

[0031] The adapter mechanism includes a support bracket 10, which is fixedly installed on the lower left and right sides of the main adapter fixture 6 and the auxiliary adapter fixture 7 on the front and rear sides. The bottom of the symmetrically arranged support bracket 10 is fixedly installed on the top surface of the docking platform 1. The adapter mechanism includes a separation slide rod 11, which is fixedly installed on the middle outer ends of the main adapter fixture 6 and the auxiliary adapter fixture 7 respectively. A contact spring 12 is sleeved on the upper end of the separation slide rod 11, so that the main adapter fixture 6 and the auxiliary adapter fixture 7, which are of upper and lower split structure, move closer to each other to clamp the vacuum amplifier assembly 9.

[0032] like Figures 2-4As shown, when installing the vacuum amplifier assembly 9, the upper parts of the main adapter 6 and the secondary adapter 7 are first manually lifted upwards, so that the upper parts slide along the separation slide bar 11 and stretch the contact spring 12. Then, the vacuum amplifier assembly 9 is placed inside the adapter cavity 8 opened inside the main adapter 6 and the secondary adapter 7. The adapter cavity 8 is adapted to install vacuum amplifier assemblies 9 of different specifications and shapes. The contact spring 12 drives the upper and lower split main adapter 6 and the secondary adapter 7 to merge with each other so as to position the vacuum amplifier assembly 9 and avoid misalignment during the welding process.

[0033] Example 2: To address the problems existing in the welding of current vacuum amplifiers, this example discloses the following technical solution, as well as docking slide rods 2 fixedly installed on the left and right sides inside the docking platform 1; positioning mechanisms are provided on the front and rear sides above the docking platform 1, and the positioning mechanisms include a main positioning slide plate 3 and a secondary positioning slide plate 4; wherein, a positioning groove 5 is provided at the center of the interior of both the main positioning slide plate 3 and the secondary positioning slide plate 4; the bottom ends of the main positioning slide plate 3 and the secondary positioning slide plate 4 are slidably connected to the outer wall of the docking slide rod 2, and the main positioning slide plate 3 and the secondary positioning slide plate 4 are arranged in the same specification but opposite directions of movement, and the main positioning slide plate 3 and the secondary positioning slide plate 4 respectively position and lock against the main adapter tooling 6 and the secondary adapter tooling 7 included in the adapter mechanism.

[0034] like Figure 1 , Figure 3 As shown, the main positioning slide plate 3 and the secondary positioning slide plate 4 are positioned by the docking slide rod 2 inside the docking platform 1. Then, when positioning the adapter mechanism, the main adapter fixture 6 and the secondary adapter fixture 7 on the front and rear sides slide inward simultaneously, so that the main positioning slide plate 3 slides onto the outside of the main adapter fixture 6 and the secondary positioning slide plate 4 slides onto the outside of the secondary adapter fixture 7, thereby performing secondary positioning of the internal vacuum amplifier assembly 9 and improving the stability during welding.

[0035] Example 3: To address the problems existing in the welding of current vacuum amplifiers, this example discloses the following technical solution: A welding mechanism is provided in the middle of the docking platform 1, and the welding mechanism includes a welding positioning ring 13. The welding positioning ring 13 is lockably installed in the middle of the top surface of the docking platform 1, and a drive gear ring 14 is rotatably installed inside the welding positioning ring 13. A welding needle assembly 15 is fixedly installed inside the drive gear ring 14. The welding mechanism includes a drive gear 16, and the drive gear 16 is rotatably mounted on the top surface of the welding positioning ring 13. The drive gear 16 and the drive gear ring 14 are meshed and connected. The inner end of the welding needle assembly 15 corresponds to the welding point of the vacuum amplifier assembly 9.

[0036] like Figures 5-6 As shown, by sliding the welding positioning ring 13, the internal welding needle assembly 15 is moved back and forth above the docking platform 1, thereby adjusting to the welding position of the vacuum amplifier assembly 9 on both the front and rear sides. Then, the drive motor fixedly installed on the top surface of the welding positioning ring 13 drives the fixedly connected drive gear 16 to rotate, so that the drive gear 16 drives the meshing drive gear ring 14 to rotate, so that the drive gear ring 14 drives the inner welding needle assembly 15 to perform circumferential rotation welding on the vacuum amplifier assembly 9, thereby improving processing efficiency and accuracy.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A welding fixture for a vacuum amplifier, comprising a docking platform (1) and docking slide bars (2) fixedly installed on the left and right sides inside the docking platform (1); characterized in that Also includes: The docking platform (1) is provided with positioning mechanisms on both the front and rear sides above, and the positioning mechanisms include a main positioning slide plate (3) and a secondary positioning slide plate (4). The main positioning slide (3) and the secondary positioning slide (4) are both provided with positioning grooves (5) at their internal center positions; The docking platform (1) is provided with an adapter mechanism on both the front and rear sides above it. The adapter mechanism includes a main adapter tool (6) and a secondary adapter tool (7). The main adapter tool (6) and the secondary adapter tool (7) are both distributed in a semi-circular structure with the upper and lower parts separated.

2. A vacuum amplifier welding fixture according to claim 1, wherein: The bottom ends of the main positioning slide plate (3) and the auxiliary positioning slide plate (4) included in the positioning mechanism are slidably connected to the outer wall of the docking slide rod (2). The main positioning slide plate (3) and the auxiliary positioning slide plate (4) are set in the same specification but opposite directions of movement. The main positioning slide plate (3) and the auxiliary positioning slide plate (4) are respectively positioned and locked against the main adapter tooling (6) and the auxiliary adapter tooling (7) included in the adapter mechanism.

3. The welding fixture for a vacuum amplifier according to claim 1, characterized in that: The adapter mechanism includes an adapter cavity (8), which is located inside the main adapter fixture (6) and the secondary adapter fixture (7). The vacuum amplifier assembly (9) is installed inside the main adapter fixture (6) and the secondary adapter fixture (7) through the adapter cavity (8).

4. The welding fixture for a vacuum amplifier according to claim 3, characterized in that: The adapter mechanism includes a support bracket (10), and the support bracket (10) is fixedly installed on the lower left and right sides of the main adapter tooling (6) and the auxiliary adapter tooling (7) on the front and rear sides. The bottom end of the symmetrically arranged support bracket (10) is fixedly installed on the top surface of the docking platform (1).

5. The welding fixture for a vacuum amplifier according to claim 4, characterized in that: The adapter mechanism includes a separation slide (11), and the separation slide (11) is fixedly installed at the middle outer ends of the main adapter fixture (6) and the auxiliary adapter fixture (7), and a contact spring (12) is sleeved on the upper end of the separation slide (11), so that the main adapter fixture (6) and the auxiliary adapter fixture (7), which are of a split structure, approach each other to clamp the vacuum amplifier assembly (9).

6. The welding fixture for a vacuum amplifier according to claim 1, characterized in that: The docking platform (1) is provided with a welding mechanism in the middle, and the welding mechanism includes a welding positioning ring (13). The welding positioning ring (13) is lockably installed in the middle of the top surface of the docking platform (1). A drive gear ring (14) is rotatably installed inside the welding positioning ring (13), and a welding needle assembly (15) is fixedly installed inside the drive gear ring (14).

7. The welding fixture for a vacuum amplifier according to claim 6, characterized in that: The welding mechanism includes a drive gear (16), and the drive gear (16) is rotatably mounted on the top surface of the welding positioning ring (13). The drive gear (16) is meshed with the drive gear ring (14), and the inner end of the welding needle assembly (15) corresponds to the welding point of the vacuum amplifier assembly (9).