Back pipe electric arc bottoming protection tool, supporting assembly and bottoming mechanism

Abstract

The utility model relates to the technical field of target material spraying tools, and particularly discloses a back pipe electric arc bottoming protection tool, a supporting assembly and a bottoming mechanism. A back pipe electric arc bottoming protection tool comprises two clamping pieces. Each clamping piece comprises an inner ring plate and an outer ring plate which are concentric, and further comprises a connecting ring. In each clamping piece, the inner ring plate and the outer ring plate are both vertically connected to the connecting ring. The inner ring plate and the outer ring plate can clamp one end of the back pipe, so that the two clamping pieces can clamp the two ends of the back pipe. The protection tool can wrap the two ends of the back pipe, so that when the back pipe is bottomed by an electric arc, even if a bottoming layer is still deposited on the surface of an umbrella tip for supporting the back pipe, the two ends of the back pipe are effectively protected due to the installation of the protection tool, and the two ends of the back pipe can be prevented from being hurt.

Description

Technical Field

[0001] The present application relates to the technical field of spray target tooling, and in particular to a back-tube arc bottoming protection tooling, a supporting assembly and a bottoming mechanism. Background Art

[0002] The rapid development of the coating industry has put forward higher requirements for the large-scale and utilization rate of sputtering targets. Since there is no relative movement between the planar target and the magnetic field in the coating equipment, the utilization rate of the planar target is only about 30%. Compared with the planar target, the tubular target has the advantages of high utilization rate (up to 50%~70%), good coating continuity, and uniform coating composition, and its application is becoming more and more extensive. Plasma spraying technology can spray almost all ceramics, metals, and metal compounds, and has great application potential in the field of target preparation.

[0003] When using plasma spraying technology to prepare tubular targets, the stainless steel back tube is first machined to obtain the finished back tube. Secondly, the surface of the stainless steel back tube is arc blasted to deposit a transition layer of specific composition and thickness on its surface. The purpose is to prevent the coating cracking caused by intrinsic stress and thermal mismatch stress when the ultra-thick coating is sprayed later. The two ends of the stainless steel back tube are fixed by two umbrella tips during the priming process. During the priming process, the back tube rotates, and the primer wire is melted, atomized by the air flow, and accelerated, and then sprayed onto the surface of the workpiece to form a primer coating. After long-term use, the surface of the umbrella tip will be sprayed with primer wire components, such as NiAl, which is relatively hard. When the stainless steel back tube is double-topped again in the future, the port sealing surface of the stainless steel back tube is prone to scratches. Since the back tube has been processed into a finished product, rework will result in dimensional deviations or even scrapping. Utility Model Content

[0004] In order to solve the above problem of stainless steel back tube port sealing surface being damaged, the present application designs a port protection tooling to improve the condition of back tube port being damaged. The protection tooling can also be combined with the umbrella tip to form a support assembly, and the support assembly can be combined with the back tube to form a primer mechanism, which is used as a set for arc primer operation.

[0005] In a first aspect, the present application proposes a protective workwear and adopts the following technical solution.

[0006] A back-tube arc bottoming protection tool comprises two clamping members. Each of the clamping members comprises a concentric inner ring plate and an outer ring plate, and also comprises a connecting ring. In each of the clamping members, the inner ring plate and the outer ring plate are both vertically connected to the connecting ring. The inner ring plate and the outer ring plate are arranged to clamp one end of the back-tube, so that the two clamping members can clamp both ends of the back-tube.

[0007] By adopting the above technical solution, the back tube is used as a spraying target, and the protective tooling can wrap the two ends of the back tube. Therefore, when the electric arc is bottoming the back tube, even if the upper coating layer is still deposited on the surface of the umbrella tip supporting the back tube, the protective tooling is installed to effectively protect the two ends of the back tube, thereby avoiding damage to the two ends of the back tube.

[0008] A preferred structure of the back tube arc bottoming protection tooling is that the protection tooling serves as an intermediate piece for isolating the back tube and the umbrella top supporting the back tube, the umbrella top has a truncated cone portion, and the inner periphery of the connection between the inner ring plate and the connecting ring is set to an inclined inner annular surface that can fit the outer wall of the truncated cone portion.

[0009] By adopting the above technical solution, the inclined inner annular surface can cooperate with the outer wall surface of the umbrella top, the double tops fix the back tube, the device has good stability, and the back tube port does not directly contact the umbrella top, thereby avoiding damage to the back tube port.

[0010] A preferred structure of the back tube arc bottoming protection tooling is that the distance between the inner ring plate and the outer ring plate is equal to the end wall thickness of the back tube.

[0011] By adopting the above technical solution, the clamping piece can tightly wrap the end of the back tube, thereby providing better protection for the end.

[0012] A preferred structure of the back tube arc bottoming protection tooling is that the outer wall of one end of the outer ring plate away from the connecting ring is arranged as an inclined outer ring surface.

[0013] By adopting the above technical solution, it is advantageous to extend the protective tape from the back tube to the inclined outer annular surface for bonding.

[0014] A preferred structure of the back tube arc bottoming protection tooling is that the structures of the two clamping members are completely identical.

[0015] By adopting the above technical solution, the symmetrical clamping structure is stable.

[0016] In a second aspect, the present application proposes a support assembly and adopts the following technical solution.

[0017] A support assembly includes the above-mentioned protective tooling and two umbrella tips. Each umbrella tip has a truncated cone portion. The truncated cone portion is arranged to be inserted into the inner ring plate with a smaller end, and the outer wall of the truncated cone portion abuts against the connection between the inner ring plate and the connecting ring.

[0018] By adopting the above technical solution, the protective tooling can be inserted by the umbrella tip and rotatably fixed, so that when the back tube is sandblasted, the back tube can be freely rotated to evenly prime the outer wall surfaces at various locations.

[0019] A preferred structure of the support assembly is that each of the umbrella tips further comprises a straight rod, and the straight rod is vertically fixed in the middle of the bottom surface of the truncated cone portion.

[0020] By adopting the above technical solution, the installation and fixation of the umbrella tip is facilitated.

[0021] On the third aspect, the present application proposes a base laying mechanism and adopts the following technical solution.

[0022] A bottoming mechanism comprises the above-mentioned support assembly and a backing tube. The two ends of the backing tube are flared structures, the ends have an annular wall with uniform thickness, and the outer diameter of the annular wall is equal everywhere.

[0023] By adopting the above technical solution, the inner ring plate and the outer ring plate can clamp the ring wall more adaptably, thereby achieving a better protection effect on the ring wall.

[0024] In summary, the back tube arc bottoming protection tooling, support assembly and bottoming mechanism of the present application have the following beneficial effects:

[0025] (1) The protective tooling can better wrap the back tube port, preventing the back tube port from directly contacting the top of the umbrella, and avoiding injury to the back tube port.

[0026] (2) The outer ring plate is designed with an inclined outer ring surface. Compared with a flat ring surface, the step difference at the connection with the back tube is smaller, which makes it more convenient to continuously wrap the tape for protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A diagram of the structure of a single clamp for the back tube arc protection tooling.

[0028] Figure 2 for Figure 1 A rear view of the clamping piece.

[0029] Figure 3 This is a combination diagram of the base mechanism.

[0030] Figure 4 This is the back tube structure diagram.

[0031] Figure 5 This is a diagram of the top structure of the umbrella.

[0032] Figure 6 for Figure 1 A side view of the clamping member.

[0033] Figure 7 This is a combination diagram of the support components.

[0034] Figure 8 This is a structural diagram of the back tube from another perspective.

[0035] Reference numerals: clamping member 1; inner ring plate 11; outer ring plate 12; connecting ring 13; back tube 2; base layer 21; umbrella tip 3; truncated cone portion 31; inclined inner ring surface 131; inclined outer ring surface 121; straight rod 32; annular wall 22. DETAILED DESCRIPTION

[0036] The following is a detailed description of some embodiments of the back tube arc bottoming protection tooling, support assembly and bottoming mechanism of the present application in conjunction with the accompanying drawings.

[0037] Please refer to Figure 1 , a back tube arc bottoming protection tooling, used to protect the back tube 2 as a spray target. The protection tooling includes two clamping members 1. Each of the clamping members 1 includes a concentric inner ring plate 11 and an outer ring plate 12, and also includes a connecting ring 13. In each of the clamping members 1, the inner ring plate 11 and the outer ring plate 12 are both uprightly connected to the connecting ring 13. The clamping member 1 of this design forms a groove on one end surface, such as Figure 2 , the other end surface forms a flat surface. Figure 3 The inner ring plate 11 and the outer ring plate 12 can clamp one end of the back tube 2 , so that the two clamping members 1 can clamp both ends of the back tube 2 .

[0038] The protective tooling of the above structure can wrap the two ends of the back tube 2, so that when the arc strikes the back tube 2, even if the upper strike layer 21 is still deposited on the surface of the umbrella top 3 supporting the back tube 2, the installation of the protective tooling effectively protects the two ends of the back tube 2, thereby preventing the two ends of the back tube 2 from being damaged. Figure 4 The position of the back tube 2 for priming is shown in the figure. After priming, a palladium layer needs to be sprayed on the upper surface of the priming layer 21.

[0039] The protective tooling is used as an intermediate piece to isolate the back tube 2 and the top 3 of the umbrella supporting the back tube 2, Figure 5 The umbrella tip 3 has a truncated cone portion 31, referring to Figure 2 The inner circumference of the connection between the inner ring plate 11 and the connecting ring 13 is set to be an inclined inner ring surface 131 that can fit the outer wall of the truncated cone portion 31, which is equivalent to setting an inner chamfer. The inclined inner ring surface 131 can cooperate with the outer wall surface of the umbrella top 3, and the double top fixes the back tube 2, the device has good stability, and the back tube 2 port does not directly contact the umbrella top 3, thereby avoiding the back tube 2 port from being damaged.

[0040] The back tube 2 and the protective tooling can be made of stainless steel, and the material of the umbrella tip 3 can include stainless steel and lining plastic.

[0041] In order to better wrap the end of the back tube 2, the spacing between the inner ring plate 11 and the outer ring plate 12 is set to be equal to the wall thickness of the end of the back tube 2, so that the clamp 1 can tightly wrap the end of the back tube 2, and the protection of the end is better. After using this protective tooling, the sealing surface of the stainless steel back tube 2 port can be effectively protected, and the problem of port sealing surface scratching can be effectively solved.

[0042] refer to Figure 6 In order to facilitate the use of adhesive tape to protect the area that does not require primer during primer application, the outer wall of the end of the outer ring plate 12 away from the connecting ring 13 is set as an inclined outer ring surface 121, referring to Figure 3 This arrangement reduces the step difference from the back tube 2 to the outer ring plate 12. Although the present application has installed the protective tooling, it is still necessary to wrap the tape around the back tube 2 near the end until the outer ring plate 12 to isolate the primer material when primer is applied to prevent the primer from being applied here. The above design is conducive to extending the protective tape from the back tube 2 to the inclined outer ring surface 121 to be applied.

[0043] The structures of the two clamping members 1 are completely identical, and the symmetrical clamping structure is stable. The protective tooling designed can isolate the end surface of the stainless steel back tube 2 from direct contact with the umbrella top 3, thereby avoiding injury.

[0044] refer to Figure 7 A support assembly includes the above-mentioned protective tooling and two umbrella tips 3. Each umbrella tip 3 has a truncated cone portion 31. The truncated cone portion 31 is configured to be inserted into the inner ring plate 11 with a smaller end, and the outer wall of the truncated cone portion 31 is abutted against the connection between the inner ring plate 11 and the connecting ring 13. The protective tooling can be plugged in by the umbrella tip 3 and rotatably fixed, so that when the back tube 2 is sandblasted, the back tube 2 can be freely rotated to perform uniform priming of the outer wall surfaces at various locations.

[0045] Each of the umbrella tips 3 further includes a straight rod 32 , and the straight rod 32 is vertically fixed in the middle of the bottom surface of the truncated cone portion 31 , so as to facilitate the installation and fixation of the umbrella tip 3 .

[0046] refer to Figure 3 A bottoming mechanism includes the above-mentioned support assembly and a backing tube 2. The two ends of the backing tube 2 are flared structures. Figure 8 The end has a ring wall 22 with uniform thickness, and the outer diameter of the ring wall 22 is equal everywhere. The inner ring plate 11 and the outer ring plate 12 can clamp the ring wall 22 more adaptably, and the protection effect of the ring wall 22 is better.

[0047] In summary, the back tube arc bottoming protection tooling, support assembly and bottoming mechanism of the present application have the following beneficial effects:

[0048] (1) The protective tooling can better wrap the back tube 2 port to prevent the back tube 2 port from directly contacting the umbrella top 3, thereby avoiding injury to the back tube 2 port.

[0049] (2) The outer ring plate 12 is designed with an inclined outer ring surface 121. Compared with a flat ring surface, the step difference at the connection with the back tube 2 is smaller, which makes it more convenient to continuously wrap the tape for protection.

[0050] The above are only some embodiments of the present application, and the protection scope of the present application is not limited to the above embodiments. For ordinary technicians in this technical field, some improvements and modifications without departing from the creative design of the present application should also fall within the protection scope of the present application.

Claims

1. A back-tube arc bottoming protection tool, characterized in that: The invention comprises two clamping members (1); each of the clamping members (1) comprises a concentric inner ring plate (11) and an outer ring plate (12), and also comprises a connecting ring (13); in each of the clamping members (1), the inner ring plate (11) and the outer ring plate (12) are both vertically connected to the connecting ring (13); the inner ring plate (11) and the outer ring plate (12) are arranged to clamp one end of the back tube (2), so that the two clamping members (1) can clamp both ends of the back tube (2).

2. The back tube arc bottoming protection tooling according to claim 1 is characterized in that: The protective tooling serves as an intermediate piece for isolating the back tube (2) and the umbrella tip (3) supporting the back tube (2); the umbrella tip (3) has a truncated cone portion (31); and the inner periphery of the connection between the inner ring plate (11) and the connecting ring (13) is arranged as an inclined inner ring surface (131) capable of fitting against the outer wall of the truncated cone portion (31).

3. The back tube arc bottoming protection tooling according to claim 1 is characterized in that: The distance between the inner ring plate (11) and the outer ring plate (12) is equal to the wall thickness of the end of the back tube (2).

4. The back tube arc bottoming protection tooling according to claim 1 is characterized in that: An outer wall of one end of the outer ring plate (12) away from the connecting ring (13) is arranged as an inclined outer ring surface (121).

5. The back tube arc bottoming protection tooling according to any one of claims 1 to 4, characterized in that: The structures of the two clamping members (1) are completely the same.

6. A support assembly, characterized in that: The protective tooling comprises the protective tooling according to any one of claims 1 to 5, and further comprises two umbrella tips (3); each of the umbrella tips (3) has a truncated cone portion (31); the truncated cone portion (31) is arranged to be inserted into the inner ring plate (11) with a smaller end, and the outer wall of the truncated cone portion (31) is abutted against the connection between the inner ring plate (11) and the connecting ring (13).

7. The support assembly according to claim 6, characterized in that: Each of the umbrella tips (3) further comprises a straight rod (32), wherein the straight rod (32) is vertically fixed in the middle of the bottom surface of the truncated cone portion (31).

8. A bottoming mechanism, characterized in that: The support assembly comprises the support assembly according to claim 6 or 7, and further comprises a back tube (2); both ends of the back tube (2) are flared structures, the ends have an annular wall (22) of uniform thickness, and the outer diameter of the annular wall (22) is equal everywhere.

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