Novel clamp for plasma spraying of target material

Abstract

The utility model relates to the technical field of target material production, in particular to a novel clamp for target material plasma spraying. One end of the left connector is provided with a flange, one end of the right connector is provided with a taper hole, one end of the left connector and one end of the right connector are each provided with an insertion part used for being inserted into a back pipe, and the outer circumference of each insertion part is provided with an inner wall sealing ring. The left connector is provided with a left water outlet hole and a left water inlet hole which penetrate through the two ends of the left connector, the right connector is provided with a right water inlet hole and a right water outlet hole which penetrate through the inner end of the right connector, the right water inlet hole and the right water outlet hole are communicated with each other in the right connector, and one end of each of the left water inlet hole and the right water inlet hole is provided with an internal thread part. Outer thread parts used for being connected with the inner thread parts are arranged at the two ends of the water passing lining pipe. A connecting sleeve and a blocking nut are omitted, and cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of target production, in particular to a fixture for plasma spraying of a new type of target. Background Art

[0002] Plasma spraying is a relatively common process for producing rotating targets. When performing plasma spraying, the back tube needs to be installed on the lathe through a fixture. The patent with the application number 201920984920.X of our company discloses a fixture for plasma spraying target operations. One end of the left connecting head is inserted into the inner hole at the end of the back tube. The other end of the back tube is connected with a right connecting head. A water-passing lining tube is sleeved inside the back tube. The left connecting head is connected to the main shaft of the lathe through a flange. The central tapered hole of the right connecting head abuts against the tailstock of the lathe. The back tube can rotate with the main shaft of the lathe. The left connecting head is provided with a left water inlet hole which is communicated with the water-passing lining tube. The right connecting head is provided with a right water inlet hole and a right water outlet hole. The right water outlet hole is communicated with the cavity formed by the back tube and the water-passing lining tube. The left connecting head is provided with a left water outlet hole which is communicated with the return water pipeline on the lathe, having the advantages of good sealing performance and long service life. However, it relies on the cooperation of a connecting sleeve, a blocking nut and a fastening bolt to fix the left connecting head and the right connecting head at the end of the back tube. In fact, for the most widely used target, its back tube is as Figure 5 shown, and the present application provides a fixture suitable for this back tube. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is, aiming at the above-mentioned existing technical deficiencies, to provide a fixture for plasma spraying of a new type of target.

[0004] To solve the above technical problem, the technical solution adopted by the utility model is: a fixture for plasma spraying of a new type of target, including a left connecting head with a flange at one end, a water-passing lining tube and a right connecting head with a tapered hole at one end. One ends of the left connecting head and the right connecting head are both provided with insertion parts for inserting into the back tube. An inner wall sealing ring is arranged on the outer circumference of the insertion part. The left connecting head is provided with a left water outlet hole and a left water inlet hole penetrating through its two ends. The right connecting head is provided with a right water inlet hole and a right water outlet hole penetrating through its inner end. The right water inlet hole and the right water outlet hole are communicated with each other inside the right connecting head. One ends of the left water inlet hole and the right water inlet hole are both provided with internal thread parts. Both ends of the water-passing lining tube are provided with external thread parts for connecting with the internal thread parts.

[0005] To further optimize this technical solution, the outer diameters of the left connecting head and the right connecting head are equal to the outer diameter of the back tube, and a first threaded hole is provided on one side of each of them. A protective cover is further included. A first through hole is provided on one side of the protective cover. The protective cover is sleeved outside the left connecting head or the right connecting head, and a bolt passes through the first through hole and is connected to the first threaded hole to fix the protective cover.

[0006] To further optimize this technical solution, an isolation ring is provided at one end of the protective cover, and the inner diameter of the isolation ring is greater than the outer diameter of the target material.

[0007] To further optimize this technical solution, an end seal ring is further included for sleeving on the end of the insertion part close to the left connecting head or the right connecting head.

[0008] To further optimize this technical solution, the right connecting head includes a right end head and an end panel. An insertion part is provided at one end of the right end head. A right water inlet hole and a right water outlet hole penetrating through both ends are provided on the right end head. A plurality of second threaded holes are provided at the end of the right end head far from the insertion part. A concave platform is provided at one end of the end panel close to the right end head. The tapered hole is provided on the other side of the end panel. A plurality of second through holes are provided on the end panel. A bolt passes through the second through holes and is connected to the second threaded holes to fix the right end head and the end panel together. A seal ring is provided between the right end head and the end panel.

[0009] Compared with the prior art, the present utility model has the following advantages: 1. Internal thread parts are provided in the water inlet holes of the two connecting heads, and external thread parts for connecting with the internal thread parts are provided at both ends of the water passing lining tube, so that the two connecting heads can be fastened to the ends of the back tube, eliminating the connecting sleeve and the blocking nut, and reducing the cost; 2. The presence of the protective cover can prevent the sprayed powder from entering the semi-circular groove at the end of the back tube; 3. Seal rings are provided between the left connecting head and the right connecting head and the ends of the back tube, further enhancing the sealing performance between the connecting head and the back tube. Description of the Drawings

[0010] Figure 1 It is a schematic structural diagram of a new type of fixture for plasma spraying of a target.

[0011] Figure 2 It is a schematic structural diagram of the left connecting head.

[0012] Figure 3 It is a schematic structural diagram of the protective cover.

[0013] Figure 4 It is a schematic structural diagram of the right connecting head.

[0014] Figure 5 It is a schematic structural diagram of the back tube.

[0015] In the figure: 1. left connector; 11. flange; 12. first threaded hole; 13. end sealing ring; 14. inner wall sealing ring; 15. left water outlet; 16. left water inlet; 17. insertion part; 2. protective cover; 21. first through hole; 22. isolation ring; 3. water liner; 4. back pipe; 5. right connector; 51. right end; 511. right water inlet; 512. right water outlet; 513. second threaded hole; 52. end panel; 521. second through hole; 522. recess; 523. tapered hole. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0017] Specific implementation method: Combination Figures 1-5 As shown, a novel target plasma spraying fixture comprises a left connector 1 with a flange 11 at one end, a water-passing liner 3 and a right connector 5 with a tapered hole 523 at one end. The flange 11 is used to connect with the main shaft of the rotary bed, and the tapered hole 523 is used to be supported by the rotary top on the tailstock of the rotary bed. One end of the left connector 1 and the right connector 5 are both provided with an insertion portion 17 for inserting into the back tube 4. The outer diameter of the insertion portion 17 is slightly smaller than the inner diameter of the back tube 4. Naturally, the outer diameters of the left connector 1 and the right connector 5 are larger than the inner diameter of the back tube 4. An inner wall sealing ring 14 is provided on the outer circumference of the insertion portion 17. The left connector 1 is provided with a left water outlet 15 and a left water inlet 16 running through both ends thereof. The right connector 5 is provided with a right water inlet 511 and a right water outlet 512 running through the inner end thereof. The right water inlet 511 and the right water outlet 512 are connected to each other inside the right connector 5. One end of the left water inlet hole 16 and the right water inlet hole 511 are both provided with an internal threaded portion, and both ends of the water lining pipe 3 are both provided with an external threaded portion for connecting with the internal threaded portion. When in use, the water lining pipe 3 is first threadedly connected with the left connector 1, and then the water lining pipe 3 is inserted into the back pipe 4, and the insertion portion 17 on the left connector 1 is inserted into the back pipe 4, and then the right connector 5 is threadedly connected with the other end of the back pipe 4, and then the left connector 1 is fixed and the right connector 5 is rotated until the two connectors are tightly pressed against the two ends of the back pipe 4, and at this time, the two connectors will not fall off the back pipe 4. Because the two connectors are tightly pressed against the two ends of the back pipe 4, a large friction force is generated between the two and the end of the back pipe 4, and it is not easy to slip between the back pipe 4 and the two connectors when starting or stopping.

[0018] Furthermore, the outer diameters of the left connector 1 and the right connector 5 are equal to or slightly larger than the outer diameter of the back tube 4, and first threaded holes 12 are provided on one side of both of them. A protective cover 2 is further included. The inner diameter of the protective cover 2 is equal to or slightly larger than the outer diameter of the back tube 4. A first through hole 21 is provided on one side of the protective cover 2. The protective cover 2 is sleeved outside the left connector 1 or the right connector 5. After a bolt passes through the first through hole 21, it is connected to the first threaded hole 12 to fix the protective cover 2. The protective cover 2 can block the semi-circular groove at the end of the back tube 4 to prevent the sprayed powder from entering it. When the powder enters the groove, it takes a certain amount of time to clean it up.

[0019] Furthermore, an isolation ring 22 is provided at one end of the protective cover 2. The inner diameter of the isolation ring 22 is larger than the outer diameter of the target material sprayed on the back tube 4, and the difference between the two is preferably about 5 millimeters. The length of the isolation ring 22 is preferably 8 - 10 millimeters. It is difficult for the powder sprayed by the plasma spray gun to reach the back tube 4 inside the isolation ring 22. Therefore, the target material outside the back tube 4 is blocked at the isolation ring 22. Due to the existence of the isolation ring 22, the target material on the back tube 4 will not be connected to the target material outside the protective cover 2. If they are connected together, it will be difficult to remove the protective cover 2 when the spraying is completed.

[0020] Furthermore, an end seal ring 13 for sleeving the end of the insertion part 17 close to the left connector 1 or the right connector 5 is further included. The end seal ring 13 further enhances the sealing performance between the connector and the back tube 4.

[0021] Furthermore, the right connector 5 includes a right end head 51 and an end panel 52. An insertion part 17 is provided at one end of the right end head 51. A right water inlet hole 511 and a right water outlet hole 512 penetrating through both ends are provided on the right end head 51. A plurality of second threaded holes 513 are provided at the end of the right end head 51 away from the insertion part 17. A concave platform 522 is provided at one end of the end panel 52 close to the right end head 51. The right water inlet hole 511 and the right water outlet hole 512 are within the range of the concave platform 522. A taper hole 523 is provided on the other side of the end panel 52. A plurality of second through holes 521 are provided on the end panel 52. After a bolt passes through the second through holes 521, it is connected to the second threaded holes 513 to fix the right end head 51 and the end panel 52 together. A seal ring is provided between the right end head 51 and the end panel 52, and the seal ring is outside the concave platform 522.

[0022] It should be understood that the above specific embodiments of the present utility model are only used for exemplary illustration or explanation of the principle of the present utility model, and do not constitute a limitation to the present utility model. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of the present utility model shall be included within the protection scope of the present utility model. In addition, the appended claims of the present utility model are intended to cover all variations and modifications that fall within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A fixture for plasma spraying of a new type of target, comprising a left connector (1) with a flange (11) provided at one end, a water-conducting lining tube (3), and a right connector (5) with a tapered hole (523) provided at one end, characterized in that: One end of the left connector (1) and the right connector (5) is provided with an insertion part (17) for inserting into the back tube (4). An inner wall sealing ring (14) is arranged on the outer circumference of the insertion part (17). The left connector (1) is provided with a left water outlet hole (15) and a left water inlet hole (16) penetrating through both ends thereof. The right connector (5) is provided with a right water inlet hole (511) and a right water outlet hole (512) penetrating through its inner end. The right water inlet hole (511) and the right water outlet hole (512) communicate with each other inside the right connector (5). One end of the left water inlet hole (16) and the right water inlet hole (511) is provided with an internal thread part. Both ends of the water passing lining tube (3) are provided with external thread parts for connecting with the internal thread parts.

2. The fixture for plasma spraying of a novel target according to claim 1, characterized in that: The outer diameters of the left connector (1) and the right connector (5) are equal to the outer diameter of the back tube (4), and a first threaded hole (12) is arranged on one side of both of them. A protective cover (2) is further included. A first through hole (21) is arranged on one side of the protective cover (2). The protective cover (2) is sleeved outside the left connector (1) or the right connector (5). After a bolt passes through the first through hole (21), it is connected with the first threaded hole (12) to fix the protective cover (2).

3. A fixture for plasma spraying of a novel target according to claim 2, characterized in that: One end of the protective cover (2) is provided with an isolation ring (22), and the inner diameter of the isolation ring (22) is larger than the outer diameter of the target material.

4. A fixture for plasma spraying of a novel target, according to claim 1, characterized in that: An end sealing ring (13) for sleeving on one end of the insertion part (17) close to the left connector (1) or the right connector (5) is further included.

5. A fixture for plasma spraying of a novel target, according to any one of claims 1-4, characterized in that: The right connector (5) includes a right end head (51) and an end panel (52). One end of the right end head (51) is provided with an insertion part (17). The right end head (51) is provided with a right water inlet hole (511) and a right water outlet hole (512) penetrating through both ends thereof. A plurality of second threaded holes (513) are arranged at one end of the right end head (51) far from the insertion part (17). A concave platform (522) is arranged at one end of the end panel (52) close to the right end head (51). A taper hole (523) is arranged on the other side of the end panel (52). A plurality of second through holes (521) are arranged on the end panel (52). After a bolt passes through the second through holes (521), it is connected with the second threaded holes (513) to fix the right end head (51) and the end panel (52) together. A sealing ring is arranged between the right end head (51) and the end panel (52).

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