Fixing device applied to ion source extraction electrode welding tool

Abstract

The utility model relates to the technical field of welding fixtures, in particular to a fixing device applied to an ion source extraction electrode welding tool. According to the technical scheme, the device comprises a fixed support module composed of two carrying bases, two base pressing plates, an upper molybdenum strip and a lower molybdenum strip; a sixth through hole and a seventh through hole are formed in the upper end face of the carrying base, two sets of threaded holes are symmetrically formed in the end faces of the two sides of the carrying base, a plurality of eighth through holes are formed in the base pressing plate in the horizontal direction in an array mode, and the carrying base and the base pressing plate are in positioning connection through bolts installed in the sixth through hole and the eighth through holes. The supporting and positioning module is composed of an M6 screw rod; and the molybdenum tube fixing module consists of a clamping bracket, a square nut, an upper molybdenum strip and an M3 hexagon socket screw. According to the utility model, the support and the molybdenum tube can be stretched out and drawn back synchronously, so that deformation can be controlled, the welding precision is ensured, the production cost is reduced, and high-precision adjustment is realized.

Description

Technical Field

[0001] This utility model relates to the field of welding fixture technology, and in particular to a fixture fixing device for welding electrodes of ion sources. Background Technology

[0002] Welding of molybdenum tubes and stainless steel bases is widely used in the manufacture of ion source extraction electrodes, high-temperature equipment, and vacuum devices. However, due to the significant difference in thermal expansion coefficients and melting points between molybdenum and stainless steel, as well as the thermal stress and welding deformation that easily occur during the welding process, it is difficult to guarantee the joint quality and dimensional accuracy. Patent CN113210781A, entitled "A Welding Device and Welding Process for Molybdenum Tube Electrode and Stainless Steel Electrode Support," discloses a welding device for molybdenum tube electrodes and stainless steel electrode supports. The device includes a base plate with a molybdenum tube electrode tray fixture on the base plate. Multiple molybdenum tube electrodes are placed parallel and spaced apart on top of the molybdenum tube electrode tray fixture, with both ends extending beyond the fixture. Stainless steel electrode support clamping fixtures are symmetrically arranged on both sides of the molybdenum tube electrode tray fixture. The stainless steel electrode support clamping fixtures include a lower clamping fixture for clamping the bottom of the stainless steel electrode support onto the base plate, and an upper clamping fixture for clamping the top of the stainless steel electrode support onto both sides of the molybdenum tube electrode. Although it achieves the fixation of molybdenum tubes and stainless steel supports, it lacks effective control over welding deformation and can only be used for welding one type of electrode, resulting in high production costs and low welding accuracy. In view of the above reasons, this application proposes a high-precision fixture suitable for welding various molybdenum tubes and stainless steel supports. Summary of the Invention

[0003] The purpose of this invention is to address the problems existing in the background technology by proposing a high-precision fixture suitable for welding various molybdenum tubes and stainless steel supports.

[0004] The technical solution of this utility model is: a fixing device for welding tooling of ion source extraction electrode, comprising a fixing support module consisting of two sets of substrates, two base pressure plates, and upper and lower molybdenum strips;

[0005] The upper end face of the substrate is provided with a sixth through hole and a seventh through hole respectively, and two sets of threaded holes are symmetrically provided on both end faces. The base plate is provided with a plurality of eighth through holes arranged in a horizontal array. The substrate and the base plate are positioned and connected by bolts installed in the sixth through hole and the eighth through hole.

[0006] It also includes a support and positioning module consisting of M6 screws;

[0007] It also includes a molybdenum tube fixing module consisting of a clamping bracket, a square nut, an upper molybdenum strip, and an M3 hexagon socket head cap screw. The end face of the clamping bracket has two fourth through holes and multiple M3 threaded holes arranged in an array along its length. The square nut has a ninth through hole. The fourth through holes and the third through holes are assembled by M6 bolts.

[0008] Optionally, the clamping bracket is provided with two sets of fourth through holes, the two sets of fourth through holes being located on both sides of multiple sets of M3 threaded holes, and the clamping bracket is also provided with a fifth through hole on the side adjacent to the M3 threaded hole.

[0009] Optionally, the upper molybdenum strip may also have a first through hole and a second through hole along its length for connection.

[0010] Optionally, a set of M6 bolts for connecting the first through hole and the third through hole are connected through the first through hole and the third through hole for fixing the upper molybdenum strip to the clamping bracket.

[0011] Optionally, the welding fixture fixing device further includes a molybdenum tube heat compensation module, which includes an upper pressure block and a lower pressure block, and the upper pressure block and the lower pressure block are connected by an M6 screw.

[0012] Optionally, the M6 ​​screw is rotatably connected with an upper adjusting nut and a lower adjusting nut, which are located on both sides of the lower pressure block of the molybdenum tube.

[0013] Compared with the prior art, the present invention has the following beneficial technical effects:

[0014] This utility model achieves clamping and fixing of stainless steel support through support clamping module, clamping of molybdenum tube and stainless steel support through molybdenum tube clamping module, uniform heating of molybdenum tube through molybdenum tube heat uniformity module, and support, clamping and adjustment of molybdenum tube clamping module and molybdenum tube heat uniformity module through M6 screw.

[0015] Furthermore, the upper and lower molybdenum strips are made of pure molybdenum of the same purity as the molybdenum tube, so that they have the same coefficient of thermal expansion as the molybdenum tube. This ensures that the molybdenum tube and the upper and lower molybdenum strips expand synchronously during the welding process, thereby ensuring that the support and the molybdenum tube expand and contract synchronously in the horizontal direction, thus achieving the purpose of controlling deformation and effectively ensuring welding accuracy.

[0016] Furthermore, by setting up upper and lower adjusting nuts, the support, clamping and adjustment of the molybdenum tube clamping module and the molybdenum tube heat uniformity module can be achieved, which is applicable to the welding and fixing of various electrode bases.

[0017] In summary, this utility model enables synchronous expansion and contraction of the support and the molybdenum tube, thereby controlling deformation, ensuring welding accuracy, reducing production costs, and achieving high-precision adjustment. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of this utility model is provided;

[0019] Figure 2 A schematic diagram of the main structure of this utility model is provided;

[0020] Figure 3 A schematic diagram of the structure of the M6 ​​screw, the upper pressure block of the molybdenum tube, and the lower pressure block of the molybdenum tube;

[0021] Figure 4 This is a schematic diagram of the clamping bracket.

[0022] Figure 5 This is a schematic diagram of the M6 ​​screw.

[0023] Figure 6 This is a schematic diagram of a square nut.

[0024] Figure label:

[0025] 1. Upper molybdenum strip; 11. First through hole; 12. Second through hole;

[0026] 2. Square nut; 21. Ninth through hole; 22. Third through hole;

[0027] 3. Clamping bracket; 31. M3 threaded hole; 32. Fourth through hole; 33. Fifth through hole;

[0028] 4. M3 socket head cap screws;

[0029] 5. Substrate; 51. Sixth through hole; 52. Seventh through hole; 53. Threaded hole;

[0030] 6. Base pressure plate; 61. Eighth through hole;

[0031] 7. Lower molybdenum strip;

[0032] 8. M6 screw; 81. Upper adjusting nut; 82. Lower adjusting nut;

[0033] 9. Pressing block on molybdenum tube;

[0034] 10. Molybdenum tube pressure block. Detailed Implementation

[0035] The technical solutions of this disclosure will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments.

[0036] The components of the embodiments of this disclosure typically described and shown in the accompanying drawings can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of embodiments of this disclosure provided in the drawings is not intended to limit the scope of the claimed disclosure, but merely to illustrate selected embodiments of the disclosure.

[0037] Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this disclosure.

[0038] In the description of this disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0039] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0040] Example

[0041] like Figures 1-6 As shown, the present invention proposes a fixing device for welding welding fixtures for ion source extraction electrodes, comprising a fixing support module consisting of two sets of carrier substrates 5, two base pressure plates 6, and an upper molybdenum strip 1 and a lower molybdenum strip 7. The upper molybdenum strip 1 and the lower molybdenum strip 7 are made of pure molybdenum of the same purity as the molybdenum tube, ensuring that they have the same coefficient of thermal expansion as the molybdenum tube. The upper molybdenum strip 1 is also provided with a first through hole 11 and a second through hole 12 for connection along its length. A set of M6 bolts for connecting the two are connected through the first through hole 11 and the third through hole 22. The connection between the first through hole 11 and the third through hole 22 is used to fix the upper molybdenum strip 1 to the clamping bracket 3.

[0042] The upper end face of the load base 5 is provided with a sixth through hole 51 and a seventh through hole 52, and there are five sets of the sixth through hole 51 and the seventh through hole 52. Two sets of threaded holes 53 are symmetrically provided on both end faces. The base plate 6 is arranged with multiple eighth through holes 61 in a horizontal array. The load base 5 and the base plate 6 are positioned and connected by bolts installed in the sixth through hole 51 and the eighth through hole 61. The stainless steel support is fixed by the connection between the load base 5 and the base plate 6.

[0043] Furthermore, the fixing device also includes a molybdenum tube fixing module consisting of a clamping bracket 3, a square nut 2, an upper molybdenum strip 1, and an M3 hexagon socket bolt 4. The end face of the clamping bracket 3 has two fourth through holes 32 and multiple M3 threaded holes 31 arranged in an array along its length. The clamping bracket 3 is provided with two sets, and the two sets of fourth through holes 32 are located on both sides of the multiple sets of M3 threaded holes 31. The side of the clamping bracket 3 adjacent to the M3 threaded holes 31 is also provided with a fifth through hole 33. A ninth through hole 21 is provided on the square nut 2. The fourth through hole 32 and the third through hole 22 are assembled by M6 bolts. The clamping bracket 3 and the square nut 2 are connected by bolts, thereby fixing the upper molybdenum strip 1 and the clamping bracket 3 together. The M3 hexagon socket bolt 4 passes through the M3 threaded hole 31 to apply clamping force to the stainless steel support to clamp the molybdenum tube.

[0044] Furthermore, the fixing device also includes a support and positioning module composed of M6 screws 8; it also includes a molybdenum tube thermal compensation module, which includes an upper molybdenum tube pressure block 9 and a lower molybdenum tube pressure block 10, which are connected by M6 screws 8; an upper adjusting nut 81 and a lower adjusting nut 82 are rotatably connected to the M6 ​​screws 8, and the upper adjusting nut 81 and the lower adjusting nut 82 are located on both sides of the lower molybdenum tube pressure block 10.

[0045] The square nut 2, the load base 5, the base pressure plate 6, the M6 ​​screw 8, the upper pressure block 9 of the molybdenum tube, and the lower pressure block 10 of the molybdenum tube are all made of high-temperature alloy materials and can withstand vacuum environments above 1200℃ without failure.

[0046] In this embodiment, two electrode bases are placed on two carrier bases 5 respectively. The two carrier bases 5 are connected to the upper molybdenum strip 1 and the lower molybdenum strip 7 using M6 bolts. Two base pressure plates 6 are placed on the upper end face of the bottom of the electrode and connected by M6 bolts passing through the preset threaded holes to achieve positioning and fixation of the electrode bases. It should be noted that in this embodiment, the first through hole 11, the second through hole 12, the third through hole 22, the fourth through hole 32, the fifth through hole 33, the sixth through hole 51, the seventh through hole 52, the eighth through hole 61, and the ninth through hole 21 are all M6 threaded through holes.

[0047] Eight M6 screws 8 are connected to the pre-set threaded holes on the substrate 5. Two M6 hex bolts are installed on each M6 screw 8. Multiple molybdenum tubes are placed between the upper molybdenum tube pressure block 9 and the lower molybdenum tube pressure block 10. The upper molybdenum tube pressure block 9 and the lower molybdenum tube pressure block 10 pass through the M6 ​​screws 8. The M6 ​​screws 8 are used to fix the upper molybdenum tube pressure block 9 and the lower molybdenum tube pressure block 10. The position of the molybdenum tube pressure block is adjusted by rotating the upper adjusting nut 81 and the lower adjusting nut 82. The square nut 2 is connected to the upper molybdenum strip 1 and the clamping bracket 3 respectively, thereby fixing the upper molybdenum strip 1 and the clamping bracket 3 together. The M3 hex bolts 4 pass through the M3 threaded holes 31 to apply clamping force to the support to clamp the molybdenum tubes.

[0048] The above specific embodiments are merely optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A fixture for fixing welding tools used in ion source extraction electrodes, characterized in that, It includes a fixed support module consisting of two sets of load bases (5), two base pressure plates (6), and upper molybdenum strips (1) and lower molybdenum strips (7); The upper end face of the substrate (5) is provided with a sixth through hole (51) and a seventh through hole (52), and two sets of threaded holes (53) are symmetrically provided on both end faces. The base plate (6) is provided with a plurality of eighth through holes (61) arranged in a horizontal array. The substrate (5) and the base plate (6) are connected by bolts installed in the sixth through hole (51) and the eighth through hole (61). It also includes a support and positioning module consisting of an M6 screw (8); It also includes a molybdenum tube fixing module consisting of a clamping bracket (3), a square nut (2), an upper molybdenum strip (1), and an M3 socket head cap screw (4). The end face of the clamping bracket (3) has two fourth through holes (32) and multiple M3 threaded holes (31) arranged in an array along its length direction. The square nut (2) has a ninth through hole (21). The fourth through holes (32) and the third through holes (22) are assembled by M6 bolts.

2. The fixing device for welding welding fixtures of ion source extraction electrodes according to claim 1, characterized in that, The clamping bracket (3) is provided with two sets of fourth through holes (32), and the two sets of fourth through holes (32) are respectively located on both sides of multiple sets of M3 threaded holes (31). The clamping bracket (3) is also provided with a fifth through hole (33) on the side adjacent to the M3 threaded hole (31).

3. The fixing device for welding welding fixtures for ion source extraction electrodes according to claim 1, characterized in that, The upper molybdenum strip (1) is also provided with a first through hole (11) and a second through hole (12) for connection along its length.

4. The fixing device for welding welding fixtures for ion source extraction electrodes according to claim 3, characterized in that, A set of M6 bolts for connecting the first through hole (11) and the third through hole (22) are connected through the first through hole (11) and the third through hole (22). The connection between the first through hole (11) and the third through hole (22) is used to fix the upper molybdenum strip (1) to the clamping bracket (3).

5. The fixing device for welding welding fixtures for ion source extraction electrodes according to claim 1, characterized in that, The welding fixture fixing device also includes a molybdenum tube heat compensation module, which includes an upper molybdenum tube pressure block (9) and a lower molybdenum tube pressure block (10). The upper molybdenum tube pressure block (9) and the lower molybdenum tube pressure block (10) are connected by an M6 screw (8).

6. The fixing device for welding welding fixtures of ion source extraction electrodes according to claim 5, characterized in that, The M6 ​​screw (8) is rotatably connected to an upper adjusting nut (81) and a lower adjusting nut (82), which are located on both sides of the molybdenum tube lower pressure block (10).

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