Ion source filament welding jig tool

Abstract

The invention belongs to the technical field of welding auxiliary equipment, and particularly relates to an ion source filament welding jig tool. A first rotating bottom plate and a shrinkage core rotating shaft are arranged at the front end and the rear end of the upper surface of the jig tool bottom plate correspondingly. The first rotating bottom plate is used for installing an ion source bottom plate and three lamp filament columns. The front end of the shrinkage core body rotating shaft is connected with a filament supporting shrinkage core body, an inner conical shaft is arranged in the filament supporting shrinkage core body, the inner conical shaft is matched with the main body structure and used for adjusting the diameter of the front end of the filament supporting shrinkage core body, and the rear end of the inner conical shaft is used for being connected with a shrinkage core body adjusting handle. The contraction core body adjusting handle is used for adjusting the inner cone shaft to move in the front-back direction. The lamp filament welding process is carried out under the supporting effect of the lamp filament supporting shrinkage core body, and the lamp filament column does not deform in the welding process. The lamp filament columns are installed on the first rotating bottom plate, it can be guaranteed that the outer side faces of the three lamp filament columns are internally connected into a circle, and the size of the lamp filament can meet the technological requirement.

Description

Technical Field

[0001] The invention belongs to the technical field of welding auxiliary equipment, and in particular relates to an ion source filament welding jig tool. Background Art

[0002] The mass spectrometer is equipped with an ion source structure. The ion source process requires: the roundness tolerance of the filament diameter after welding is less than 10 microns; the concentricity error between the inner hole axis of the ion source bottom plate and the filament axis after filament welding is less than 10 microns. However, the existing manufacturing method has the following problems: before filament welding, the filament column is manually positioned, and the three filament columns cannot be accurately positioned on a circle; there is no jig limit, and the filament is deformed and not round during welding; during welding, the welding temperature and downward pressure of the welding gun cause the filament column to deform, causing the position of the filament column to change. Therefore, it is necessary to design an ion source filament welding jig to solve the above problems. Summary of the invention

[0003] In view of the above problems, the present invention provides an ion source filament welding jig to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: An ion source filament welding jig tooling includes a jig tooling base plate, a first rotating base plate, a filament supporting shrinking core, a shrinking core rotating shaft and a shrinking core adjusting handle; The first rotating bottom plate and the shrinking core rotating shaft are respectively arranged at the front and rear ends of the upper surface of the fixture bottom plate, and the first rotating bottom plate is used to install the ion source bottom plate and three filament columns; The front end of the shrinkable core rotating shaft is connected to the filament supporting shrinkable core, and an inner conical shaft is arranged inside the filament supporting shrinkable core. The inner conical shaft matches the main structure and is used to adjust the front end diameter of the filament supporting shrinkable core, and the rear end of the inner conical shaft is used to be connected to the shrinkable core adjustment handle, and the shrinkable core adjustment handle is used to adjust the movement of the inner conical shaft in the front and rear directions.

[0005] Furthermore, the ion source filament welding jig tooling also includes a first rotating bracket and a second rotating bracket, and the first rotating bracket and the second rotating bracket are respectively installed on the front and rear ends of the upper surface of the jig tooling base plate, the first rotating bracket is rotatably connected to the first rotating base plate, and the second rotating bracket is rotatably connected to the shrinking core rotating axis.

[0006] Furthermore, the ion source filament welding jig tooling also includes a first indexing positioning pin and a second indexing positioning pin, the first indexing positioning pin is installed on the first rotating bracket and is used to fix the first rotating base plate, and the second indexing positioning pin is installed on the second rotating bracket and is used to fix the shrinking core rotating axis.

[0007] Furthermore, the ion source filament welding jig tooling also includes a shrinking core moving slider and a slide rail. The slide rail is installed on the bottom plate of the jig tooling, and the slide rail extends in the front-to-back direction. The shrinking core moving slider is slidably connected to the slide rail, and the second rotating bracket is connected to the shrinking core moving slider.

[0008] Furthermore, the ion source filament welding jig tooling also includes a third indexing positioning pin, and the third indexing positioning pin is installed on the shrinking core moving slider and is used to fix the shrinking core moving slider.

[0009] Furthermore, the ion source filament welding jig also includes a positioning connecting rod, and the left and right ends of the positioning connecting rod are respectively connected to the first rotating base plate and the shrinking core rotating shaft.

[0010] Furthermore, a filament groove is provided at the front end of the filament support shrinkage core, and the filament is arranged in the filament groove.

[0011] Furthermore, the ion source filament welding jig tooling also includes a spring, and the front end of the filament support shrinkage core is sleeved with the spring.

[0012] Furthermore, the front end of the filament supporting shrinkable core is divided into a four-petal structure, and the spring is sleeved on the four-petal structure.

[0013] Technical effects and advantages of the present invention: 1. The filament welding process is carried out under the support of the filament support shrinkage core. During the welding process, the filament column will not be deformed.

[0014] 2. By installing the filament column on the first rotating base plate, it can be ensured that the outer side surfaces of the three filament columns are inscribed in a circle, which is conducive to the filament size meeting the process requirements.

[0015] Other features and advantages of the present invention will be described in the following description, and partly become obvious from the description, or be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of the structure of an ion source filament welding jig according to an embodiment of the present invention is shown; Figure 2 A partial structural schematic diagram of an ion source filament welding jig tooling according to an embodiment of the present invention is shown; Figure 3 A cross-sectional view of an ion source filament welding jig tooling according to an embodiment of the present invention is shown; Figure 4 A schematic structural diagram of a filament supporting shrinkable core and a shrinkable core rotating shaft according to an embodiment of the present invention is shown.

[0018] In the figure: 1. jig tooling base plate; 21. first rotating base plate; 22. filament supporting shrinking core; 221. four-petal structure; 222. spring; 23. shrinking core rotating axis; 24. shrinking core adjusting handle; 25. inner tapered shaft; 26. inner tapered shaft adjusting screw; 27. positioning ring; 31. first rotating bracket; 32. second rotating bracket; 41. first dividing locating pin; 42. second dividing locating pin; 51. shrinking core moving slider; 52. slide rail; 6. third dividing locating pin; 7. positioning connecting rod; 81. ion source base plate; 82. filament column; 83. filament. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In this embodiment, the positive direction of the X axis is the front, the negative direction of the X axis is the back, the positive direction of the Y axis is the left, the negative direction of the Y axis is the right, the positive direction of the Z axis is the top, and the negative direction of the Z axis is the bottom.

[0021] like Figures 1 to 4 As shown, an ion source filament welding jig tooling according to an embodiment of the present invention comprises a jig tooling base plate 1, a first rotating base plate 21, a filament supporting shrinking core 22, a shrinking core rotating shaft 23 and a shrinking core adjusting handle 24; The first rotating bottom plate 21 and the shrinking core rotating shaft 23 are respectively arranged at the front and rear ends of the upper surface of the jig tooling bottom plate 1, and the first rotating bottom plate 21 is used to install the ion source bottom plate 81 and three filament columns 82; The front end of the shrink core rotating shaft 23 is connected to the filament supporting shrink core 22, and an inner conical shaft 25 is arranged inside the filament supporting shrink core 22. The inner conical shaft 25 matches the main structure and is used to adjust the front end diameter of the filament supporting shrink core 22. The rear end of the inner conical shaft 25 is used to be connected to the shrink core adjustment handle 24, and the shrink core adjustment handle 24 is used to adjust the movement of the inner conical shaft 25 in the front and rear directions.

[0022] Specifically, Figure 3 As shown, the internal space of the filament support shrinking core 22 is set as a cone structure, and matches the inner cone shaft 25, that is, the inner cone shaft 25 can slide back and forth in the cone structure. Secondly, the ion source filament welding jig also includes an inner cone shaft adjustment screw 26, the front and rear ends of the inner cone shaft adjustment screw 26 are respectively connected to the inner cone shaft 25 and the shrinking core adjustment handle 24, and the inner cone shaft adjustment screw 26 is threadedly connected to the shrinking core rotating shaft 23. In addition, the three filament columns 82 are positioned and locked to the ion source bottom plate 81.

[0023] In this embodiment, the first rotating bottom plate 21 is used to install the ion source bottom plate 81 and the filament column 82. Specifically, a first mounting groove is provided in the middle of the first rotating bottom plate 21. The first mounting groove matches the size and shape of the ion source bottom plate 81. The ion source bottom plate 81 is installed in the first mounting groove to achieve positioning of the ion source bottom plate 81. Secondly, a second mounting groove is also provided on the first rotating bottom plate 21. There are three second mounting grooves. The three second mounting grooves are distributed around the first mounting groove. The second mounting groove matches the size and shape of the filament column 82. The three filament columns 82 are installed in the three second mounting grooves to achieve positioning of the filament column 82. Thus, the positioning effect of the first rotating bottom plate 21 on the ion source bottom plate 81 and the filament column 82 is ensured. On the one hand, the position deviation of the three filament columns 82 can be avoided, so that the three filament columns 82 can be accurately positioned on a circle. Secondly, a locking and positioning support is provided for the filament column 82 and the ion source bottom plate 81 , so that the filament column 82 and the ion source bottom plate 81 can be fixed.

[0024] Before welding, after the filament support shrink core 22, the ion source bottom plate 81 and the filament column 82 are positioned, the shrink core adjustment handle 24 is rotated clockwise to drive the inner cone shaft 25 to advance in the cone structure inside the filament support shrink core 22, so that the diameter of the filament 83 on the filament support shrink core 22 reaches the size required by the process, and then the filament 83 is welded; after the filament 83 is welded, the shrink core adjustment handle 24 is rotated counterclockwise to drive the inner cone shaft 25 to retreat in the cone structure inside the filament support shrink core 22, and the diameter of the filament support shrink core 22 is reduced. Thus, the filament 83 welding process is carried out under the support of the filament support shrink core 22, and the filament column 82 will not be deformed during the welding process. Secondly, by installing the filament column 82 on the first rotating bottom plate 21, it can be ensured that the outer side surfaces of the three filament columns 82 are inscribed in a circle, which is conducive to the size of the filament 83 meeting the process requirements. Furthermore, by mounting the ion source bottom plate 81 on the first rotating bottom plate 21 , the ion source bottom plate 81 can be positioned.

[0025] Alternatively, if Figures 1 to 3 As shown, the ion source filament welding jig tooling also includes a first rotating bracket 31 and a second rotating bracket 32. The first rotating bracket 31 and the second rotating bracket 32 ​​are respectively installed at the front and rear ends of the upper surface of the jig tooling base plate 1. The first rotating bracket 31 is rotatably connected to the first rotating base plate 21, and the second rotating bracket 32 ​​is rotatably connected to the shrinking core rotating shaft 23.

[0026] Specifically, Figure 3 As shown, the ion source filament welding jig also includes a positioning ring 27 , which is connected to the inner tapered shaft adjusting screw 26 and is used to fix the shrink core rotating shaft 23 on the second rotating bracket 32 ​​.

[0027] In this embodiment, by installing the first rotating bracket 31 and the second rotating bracket 32 ​​at the front and rear ends of the fixture tooling base plate 1 respectively, the first rotating base plate 21 and the first rotating bracket 31 are rotatably connected, and the first rotating bracket 31 is used to provide the first rotating base plate 21 with a degree of rotational freedom, so that the first rotating base plate 21 can be rotated, thereby driving the ion source base plate 81, the filament column 82 and the filament 83 installed on the first rotating base plate 21 to rotate. Secondly, the shrinking core body rotating shaft 23 and the second rotating bracket 32 ​​are rotatably connected, and the second rotating bracket 32 ​​is used to provide the shrinking core body rotating shaft 23 with a degree of rotational freedom, so that the shrinking core body rotating shaft 23 can be rotated, thereby driving the filament support shrinking core 22 installed on the shrinking core body rotating shaft 23 to rotate, and then the front end of the filament support shrinking core 22 can be synchronously rotated with the filament 83 when it is connected to the filament 83.

[0028] Alternatively, if Figures 1 to 3As shown, the ion source filament welding jig also includes a first indexing positioning pin 41 and a second indexing positioning pin 42. The first indexing positioning pin 41 is installed on the first rotating bracket 31 and is used to fix the first rotating base plate 21. The second indexing positioning pin 42 is installed on the second rotating bracket 32 ​​and is used to fix the shrinking core rotating shaft 23.

[0029] In this embodiment, the first rotating base plate 21 is locked by the first dividing positioning pin 41 on the first rotating bracket 31, so that the first rotating base plate 21 can be fixed, and the shrinking core rotating shaft 23 is locked by the second dividing positioning pin 42 on the second rotating bracket 32, so that the shrinking core rotating shaft 23 can be fixed, so that the inner conical shaft 25 can be driven to move by the shrinking core adjustment handle 24, which is beneficial to adjust the diameter of the filament supporting shrinking core 22.

[0030] Alternatively, if Figure 1 and Figure 3 As shown, the ion source filament welding jig tooling also includes a shrinking core moving slider 51 and a slide rail 52. The slide rail 52 is installed on the jig tooling base plate 1. The slide rail 52 extends along the front and rear directions. The shrinking core moving slider 51 is slidably connected to the slide rail 52, and the second rotating bracket 32 ​​is connected to the shrinking core moving slider 51.

[0031] In this embodiment, by connecting the second rotating bracket 32 ​​with the shrinking core moving slider 51, and using the shrinking core moving slider 51 to move forward on the slide rail 52, the second rotating bracket 32, the shrinking core rotating shaft 23, and the filament supporting shrinking core 22 can be pushed close to the filament 83, so that the front end of the filament supporting shrinking core 22 can be inserted into the inner ring of the filament 83, which is conducive to adjusting the size and shape of the filament 83. Secondly, after the filament 83 is welded, the shrinking core moving slider 51 can be used to move backward on the slide rail 52 to push the second rotating bracket 32, the shrinking core rotating shaft 23, and the filament supporting shrinking core 22 away from the filament 83, which is conducive to removing the ion source base plate 81, the filament column 82 and the filament 83.

[0032] Alternatively, if Figure 1 and Figure 3 As shown, the ion source filament welding jig also includes a third indexing positioning pin 6 , and the third indexing positioning pin 6 is installed on the shrinking core moving slider 51 and is used to fix the shrinking core moving slider 51 .

[0033] In this embodiment, the shrinking core moving slider 51 is used to slide on the slide rail 52. During the welding process, when the shrinking core moving slider 51 drives the front end of the filament support shrinking core 22 to be inserted into the inner ring of the filament 83, the shrinking core moving slider 51 can be fixed by the third indexing positioning pin 6, which is conducive to fixing the filament support shrinking core 22 and facilitating welding. Secondly, after the welding is completed, when the shrinking core moving slider 51 drives the front end of the filament support shrinking core 22 to be separated from the inner ring of the filament 83, the shrinking core moving slider 51 can be fixed by the third indexing positioning pin 6, which is conducive to removing the ion source base plate 81, the filament column 82 and the filament 83.

[0034] Alternatively, if Figure 1 and Figure 3 As shown, the ion source filament welding jig also includes a positioning connecting rod 7, and the left and right ends of the positioning connecting rod 7 are respectively connected to the first rotating base plate 21 and the shrinking core rotating shaft 23.

[0035] In this embodiment, by setting a positioning link 7 and connecting the first rotating base plate 21 and the shrinking core rotating shaft 23 using the positioning link 7, the first rotating base plate 21 and the shrinking core rotating shaft 23 can be rotated synchronously, preventing the filament 83 and the filament supporting shrinking core 22 from rotating asynchronously and damaging the structure of the filament 83.

[0036] Optionally, a filament groove is provided at the front end of the filament supporting shrink core 22 , and the filament 83 is arranged in the filament groove.

[0037] In this embodiment, during the welding process, the filament 83 is limited to the filament groove of the filament support shrinkage core 22. The diameter of the filament groove is the inner diameter of the filament 83, which not only ensures the relative position of the filament 83 on the filament column 82, but also ensures the roundness of the filament 83 after welding.

[0038] Alternatively, if Figure 3 and Figure 4 As shown, the ion source filament welding jig also includes a spring 222 , and the front end of the filament support shrinkage core 22 is sleeved with the spring 222 .

[0039] In this embodiment, after the filament 83 is welded, the inner conical shaft 25 retreats, and the front end diameter of the filament support shrinking core 22 shrinks under the action of the spring force. The front end of the filament support shrinking core 22 automatically separates from the filament 83 without affecting the shape and size of the filament 83. The operation is simple, saving time and effort.

[0040] Alternatively, if Figure 4 As shown, the front end of the filament supporting shrink core 22 is divided into a four-petal structure 221 , and the spring 222 is sleeved on the four-petal structure 221 .

[0041] In this embodiment, by dividing the front end of the filament support shrink core 22 into a four-petal structure 221, the inner cone shaft 25 can open the four-petal structure 221 when it moves to the front end of the cone structure, so that the diameter of the front end of the filament support shrink core 22 increases, and the elastic force accumulates on the spring 222. When the inner cone shaft 25 moves to the rear end of the cone structure, the four-petal structure 221 can be contracted, and the elastic force of the spring 222 is released, so that the diameter of the front end of the filament support shrink core 22 decreases under the elastic force of the spring 222.

[0042] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An ion source filament welding fixture, characterized in that: It comprises a jig tooling base plate (1), a first rotating base plate (21), a filament supporting shrinking core (22), a shrinking core rotating shaft (23) and a shrinking core adjusting handle (24); The first rotating base plate (21) and the shrinking core rotating shaft (23) are respectively arranged at the front and rear ends of the upper surface of the jig tooling base plate (1), and the first rotating base plate (21) is used to install the ion source base plate (81) and three filament columns (82); The front end of the shrinkable core rotating shaft (23) is connected to the filament supporting shrinkable core (22); an inner conical shaft (25) is arranged inside the filament supporting shrinkable core (22); the inner conical shaft (25) is used to adjust the front end diameter of the filament supporting shrinkable core (22); the rear end of the inner conical shaft (25) is used to be connected to the shrinkable core adjusting handle (24); the shrinkable core adjusting handle (24) is used to adjust the inner conical shaft (25) to move in the front-rear direction.

2. The ion source filament welding jig according to claim 1, characterized in that: The jig and fixture base plate (1) further comprises a first rotating bracket (31) and a second rotating bracket (32), wherein the first rotating bracket (31) and the second rotating bracket (32) are respectively mounted on the front and rear ends of the upper surface of the jig and fixture base plate (1), the first rotating bracket (31) is rotatably connected to the first rotating base plate (21), and the second rotating bracket (32) is rotatably connected to the shrink core rotating shaft (23).

3. The ion source filament welding jig according to claim 2, characterized in that: It also includes a first indexing positioning pin (41) and a second indexing positioning pin (42), wherein the first indexing positioning pin (41) is mounted on the first rotating bracket (31) and is used to fix the first rotating base plate (21), and the second indexing positioning pin (42) is mounted on the second rotating bracket (32) and is used to fix the shrink core rotating shaft (23).

4. The ion source filament welding jig according to claim 3, characterized in that: It also includes a shrinking core moving slider (51) and a slide rail (52), wherein the slide rail (52) is installed on the jig tooling base plate (1), and the slide rail (52) extends in the front-to-back direction, the shrinking core moving slider (51) is slidably connected to the slide rail (52), and the second rotating bracket (32) is connected to the shrinking core moving slider (51).

5. The ion source filament welding jig according to claim 4, characterized in that: It also includes a third indexing positioning pin (6), which is installed on the shrinking core moving slider (51) and is used to fix the shrinking core moving slider (51).

6. The ion source filament welding jig according to claim 1, characterized in that: It also comprises a positioning connecting rod (7), the left and right ends of which are respectively connected to the first rotating base plate (21) and the shrink core rotating shaft (23).

7. The ion source filament welding jig according to claim 1, characterized in that: A filament groove is provided at the front end of the filament support shrinkage core (22), and a filament (83) is arranged in the filament groove.

8. The ion source filament welding jig according to claim 7, characterized in that: It also includes a spring (222), and the front end of the filament supporting shrinkage core (22) is sleeved with the spring (222).

9. The ion source filament welding jig according to claim 8, characterized in that: The front end of the filament supporting shrinkable core (22) is divided into a four-petal structure (221), and the spring (222) is sleeved on the four-petal structure (221).

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