Hanging tool for local plasma polishing of metal workpiece

Abstract

The utility model discloses a hanging tool for local plasma polishing of a metal workpiece, and belongs to the technical field of polishing machining. Comprising a body and shielding parts. A connecting piece is arranged at one end of the body and used for connecting the body and the small end of a metal workpiece to be machined. And the shielding piece is sleeved outside the small end of the metal workpiece. According to the characteristic that the small end of a metal workpiece is provided with a central threaded hole, the hanger body is designed in a threaded connection mode, the shielding part is designed by adopting a high-temperature-resistant and acid-alkali-resistant non-metal material, the useless energy consumption of plasma polishing is reduced while the shielding effect is ensured, the sealing groove is designed in the end face of the threaded connector of the hanger body, and the sealing effect is good. The sealing ring and the end face of the shielding part are pressed tightly, and the problem that polishing is inconsistent after plasma polishing liquid enters for polishing is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of polishing processing and relates to a hanger used for local plasma polishing of metal workpieces. Background Art

[0002] A conductive rod part used in vacuum interrupter products is a stepped long axis structure consisting of a large end and a small end. The large end is generally a cup-shaped slotted structure, and the end face of the small end is a center threaded hole structure. Since the workpiece is made of plastic metal, the tip part and the outer circle and arc part of the large end require sub-mirror polishing.

[0003] Traditionally, mechanical polishing is used to polish the large end. However, mechanical polishing struggles to achieve a sub-mirror finish and is ineffective at the tip. Furthermore, mechanical polishing is inefficient and poses a dust hazard to operators. Furthermore, the small end has a central threaded hole, so conventional immersion polishing not only consumes a lot of energy but also produces inconsistent results, resulting in a polished surface that is better at the top and worse at the bottom.

[0004] In summary, it is urgent to develop a hanger for local metal workpieces to solve the problem that traditional methods are difficult to meet the needs of polishing the metal workpiece itself without polishing the entire part and only the large end part needs to be polished. Utility Model Content

[0005] The purpose of the utility model is to solve the technical problems in the prior art that it is difficult to perform local polishing on metal workpieces, the polishing effect is not good enough, and the efficiency is poor, and to provide a hanger for local plasma polishing of metal workpieces.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] The present invention provides a hanger for local plasma polishing of metal workpieces, comprising a body and a shielding member; one end of the body is provided with a connecting member for connecting the body and the small end of the metal workpiece to be processed; the shielding member is sleeved outside the small end of the metal workpiece.

[0008] Furthermore, the connecting piece is a threaded connector, which is connected to the central threaded hole on the small end face of the metal workpiece.

[0009] Furthermore, the shielding member is a hollow cylindrical structure with one end open and the other end closed. A through hole is provided at the closed end of the shielding member so that the connecting member passes through the shielding member and is connected to the small end of the metal workpiece.

[0010] Furthermore, an annular groove is circumferentially provided on the outer wall of the connecting member, and a sealing ring is provided in the annular groove; the sealing ring is located outside the shielding member.

[0011] Furthermore, the sealing ring is a fluororubber sealing ring.

[0012] Furthermore, the surface of the body is coated with insulating glue.

[0013] Furthermore, the insulating glue is high temperature resistant, acid and alkali resistant insulating glue.

[0014] Furthermore, the main body is a T-shaped structure, and the connecting piece is located on the horizontal plane of the T-shaped structure.

[0015] Furthermore, a plurality of connecting members are provided.

[0016] Furthermore, the body is made of a metal conductive flat material.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The utility model discloses a hanger for plasma polishing a metal workpiece. A shielding member is disposed over the small end of the workpiece to be processed. The hanger body and the small end of the workpiece are then connected via a connector, allowing for local polishing of the large end of the workpiece. The connector allows the hanger to be connected to the small end of the workpiece conveniently and quickly. This design not only simplifies preparatory work before polishing, but also improves production efficiency and reduces operational difficulty.

[0019] Furthermore, the utility model is designed with a threaded connection method based on the characteristic that the small end of the metal workpiece has a central threaded hole, and the shielding part is designed with a non-metallic material that is resistant to high temperature and acid and alkali, which reduces the useless energy consumption of plasma polishing while ensuring the shielding effect.

[0020] Furthermore, the threaded connector end face of the hanger body of the present invention is designed with a sealing groove, which is pressed against the end face of the shielding member by the sealing ring, thereby solving the problem of inconsistent polishing caused by the entry of plasma polishing liquid into the polishing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0023] Figure 2 For this utility model Figure 1 Enlarged view of part A in .

[0024] Among them: 1-main body; 2-shielding part; 3-metal workpiece; 4-local polishing part; 5-sealing ring; 6-connecting part; 7-insulating glue. DETAILED DESCRIPTION

[0025] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0028] In the description of the embodiments of the present invention, it should be noted that if the terms "upper," "lower," "horizontal," "inner," etc. appear to indicate an orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings, or are the orientation or positional relationship in which the product of the present invention is typically placed when in use. These terms are used solely to facilitate the description of the present invention and to simplify the description. They do not indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," etc. are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0030] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0031] The present invention is described in further detail below with reference to the accompanying drawings:

[0032] See also Figure 1 , an embodiment of the present utility model discloses a hanger for local plasma polishing of metal workpieces, comprising a main body 1 and a shielding member 2; one end of the main body 1 has a connecting member 6, the connecting member 6 is used to connect the main body 1 and the small end of the metal workpiece 3 to be processed; the shielding member 2 is sleeved outside the small end of the metal workpiece 3. In this embodiment, a shielding member is arranged outside the small end of the metal workpiece 3 to be processed, and then the hanger main body 1 and the small end of the metal workpiece 3 are connected through the connecting member 6, so that the local polishing part 4 of the metal workpiece 3 can be operated. The utility model uses the connecting member 6 to enable the hanger to be conveniently and quickly connected to the small end of the metal workpiece 3 to be processed. This design not only simplifies the preparation work before polishing, but also improves production efficiency and reduces the difficulty of operation.

[0033] In one feasible embodiment of the present invention, the connector 6 is a threaded connector that is connected to the central threaded hole on the small end face of the metal workpiece 3. The shielding member 2 is a hollow cylindrical structure with one end open and the other closed. A through hole is defined on the closed end of the shielding member 2, allowing the connector 6 to pass through the shielding member 2 and connect to the small end of the metal workpiece 3.

[0034] In one feasible embodiment of the present invention, the outer wall of the connector 6 is provided with an annular groove, within which a sealing ring 5 is disposed; the sealing ring 5 is located outside the shielding member 2. The sealing ring 5 is preferably made of fluororubber. During installation, the sealing ring 5 is ensured to be pressed tightly against the end face of the shielding member 2, while the shielding member 2 is simultaneously pressed tightly against the larger end face of the metal workpiece 3. The body 1 is made of a conductive flat metal material.

[0035] In a feasible embodiment of the present invention, the surface of the body 1 is coated with an insulating adhesive 7. The insulating adhesive 7 is preferably a high temperature resistant and acid and alkali resistant insulating adhesive. The body 1 is a T-shaped structure, and a plurality of connectors 6 are provided on the horizontal surface of the T-shaped structure.

[0036] The working principle of this utility model is as follows:

[0037] The utility model hanger includes a hanger body 1, which is made of a conductive flat metal material. The hanger body 1 is designed with a threaded connection method based on the characteristic that the small end of the metal workpiece 3 has a central threaded hole. The shielding member 2 is designed with a non-metallic material that is resistant to high temperatures and acid and alkali, thereby reducing the useless energy consumption of plasma polishing while ensuring the shielding effect. The end face of the threaded connection head of the hanger body 1 is designed with a sealing ring groove, which is pressed against the end face of the shielding member 2 by the sealing ring 5 to solve the problem of inconsistent polishing caused by the entry of plasma polishing liquid into the polishing. The sealing ring 5 can be replaced after it fails in use. The shielding member 2 can also be replaced after it fails in use.

[0038] Before installation, the non-conductive shielding member 2 is first mounted on the small end portion of the metal workpiece 3, thereby reducing the kinetic energy consumption of plasma polishing.

[0039] During installation, the threaded connector is connected to the central threaded hole of the metal workpiece 3;

[0040] The end face of the threaded connector is designed with an annular groove, in which a sealing ring 5 is installed. During installation, ensure that the sealing ring 5 is pressed tightly against the end face of the shielding member 2, and at the same time, the shielding member 2 is pressed tightly against the large end face of the metal workpiece 3.

[0041] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A hanger for local plasma polishing of metal workpieces, characterized in that: It comprises a body (1) and a shielding member (2); one end of the body (1) is provided with a connecting member (6), the connecting member (6) being used to connect the body (1) and the small end of a metal workpiece (3) to be processed; the shielding member (2) is sleeved outside the small end of the metal workpiece (3).

2. A hanger for local plasma polishing of metal workpieces according to claim 1, characterized in that: The connecting piece (6) is a threaded connector, which is connected to the central threaded hole of the small end face of the metal workpiece (3).

3. The hanger for local plasma polishing of metal workpieces according to claim 1, characterized in that: The shielding member (2) is a hollow cylindrical structure with one end open and the other end closed. A through hole is provided at the closed end of the shielding member (2) so that the connecting member (6) passes through the shielding member (2) and is connected to the small end of the metal workpiece (3).

4. The hanger for local plasma polishing of metal workpieces according to claim 1, characterized in that: An annular groove is provided in the circumferential direction of the outer wall of the connecting member (6), and a sealing ring (5) is provided in the annular groove; the sealing ring (5) is located outside the shielding member (2).

5. The hanger for local plasma polishing of metal workpieces according to claim 4, characterized in that: The sealing ring (5) is a fluororubber sealing ring.

6. The hanger for local plasma polishing of metal workpieces according to claim 1, characterized in that: The surface of the body (1) is coated with insulating glue (7).

7. The hanger for local plasma polishing of metal workpieces according to claim 6, characterized in that: The insulating glue (7) is a high temperature resistant and acid and alkali resistant insulating glue.

8. The hanger for local plasma polishing of metal workpieces according to claim 1, characterized in that: The main body (1) is a T-shaped structure, and the connecting piece (6) is located on the horizontal plane of the T-shaped structure.

9. The hanger for local plasma polishing of metal workpieces according to claim 1, characterized in that: A plurality of connecting members (6) are provided.

10. The hanger for local plasma polishing of metal workpieces according to claim 1, characterized in that: The body (1) is made of a metal conductive flat material.

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