Piston rod electroplating protector

Abstract

The utility model belongs to the technical field of piston rod electroplating, and particularly relates to a piston rod electroplating protective tool which comprises an electric conductor, the electric conductor is connected to the electroplating end of a piston rod in a sleeved mode, one end of the outer side of the electric conductor is connected with a protective sleeve in a sleeved mode, a leakage hole is formed in the protective sleeve, and a negative plate sleeve and a spacer bush are sequentially arranged on the inner side of the protective sleeve. According to the electroplating protector for the piston rod provided by the utility model, all parts are assembled on the electric conductor, so that when the piston rod is electroplated, the electroplating protector is used for protecting threads of the piston rod, ensuring the uniformity of the thickness of a coating of the piston rod and improving the stability of the thickness of the coating, and the electroplating protector is good in applicability; labor hours and materials can be saved, manpower and material resources are reduced, production efficiency is improved, and labor intensity is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of piston rod electroplating technology, and specifically relates to a piston rod electroplating protective device. Background Technology

[0002] Existing piston rod electroplating protective gear mostly adopts an integral structure, generally made of steel rod material through machining processes. The protective cathode is often manually shaped by attaching thin iron wire to the protective gear. The main problems are: 1. The integral structure of the piston rod electroplating protective gear has a short lifespan and requires frequent replacement, which is time-consuming and material-intensive; 2. The protective cathode made of thin iron wire requires manual shaping, increasing the labor intensity of workers, and the quality stability of the protective cathode is poor, resulting in low production efficiency.

[0003] Solving these problems is the direction of our research and development. Utility Model Content

[0004] This invention provides a piston rod electroplating protective device, which can solve the problems pointed out in the background art.

[0005] A piston rod electroplating protective device includes a conductor, which is sleeved and connected to the electroplating end of the piston rod. A protective sleeve is sleeved and connected to one outer end of the conductor. The protective sleeve has a leakage hole. A cathode plate sleeve and a spacer sleeve are sequentially arranged on the inner side of the protective sleeve. The cathode plate sleeve and the spacer sleeve are respectively sleeved and connected to the conductor.

[0006] Preferably, the conductor is connected to the piston rod external thread via the conductor's internal internal thread.

[0007] Preferably, the conductor is connected to the inner hole thread of the protective sleeve and the inner hole thread of the spacer via the outer circular thread of the conductor, and the cathode plate sleeve is fixed by the protective sleeves and spacers on both sides.

[0008] Preferably, the first positioning surface of the protective sleeve contacts and positions the conductive body positioning surface of the conductive body to determine the thread engagement length.

[0009] Preferably, the second positioning surface of the protective sleeve contacts the first positioning surface of the cathode plate sleeve to determine the axial position.

[0010] Preferably, the first positioning surface of the spacer sleeve contacts the end face of the second positioning surface of the cathode plate sleeve to determine a limited length.

[0011] Preferably, the second positioning surface of the spacer sleeve contacts the end face of the piston rod positioning surface of the piston rod to determine the engagement length of the conductor.

[0012] Beneficial effects: This utility model provides a piston rod electroplating protective device, which protects the piston rod threads during piston rod electroplating by assembling various parts on a conductive body, ensuring the uniformity of the piston rod plating thickness, improving the stability of the plating thickness, and has good applicability. It can save time and materials, reduce manpower and material resources, improve production efficiency, and reduce labor intensity. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure (use) of a piston rod electroplating fixture according to this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of a protective sleeve for a piston rod electroplating fixture according to this utility model;

[0015] Figure 3 This is a schematic diagram of the conductive body of a piston rod electroplating fixture according to this utility model;

[0016] Figure 4 This is a schematic diagram of the cathode plate structure of a piston rod electroplating fixture according to this utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the spacer sleeve of the piston rod electroplating fixture of this utility model;

[0018] Explanation of reference numerals in the attached figures:

[0019] Labels in the diagram: Protective sleeve 1; Leakage hole 101; First positioning surface of protective sleeve 102; Inner hole thread of protective sleeve 103; Second positioning surface of protective sleeve 104; Conductor 2; Positioning surface of conductor 201; Inner hole thread of conductor 202; Outer circle thread of conductor 203; Cathode plate sleeve 3; Second positioning surface of cathode plate sleeve 301; First positioning surface of cathode plate sleeve 302; Positioning hole of cathode plate sleeve 303; Spacer 4; Second positioning surface of spacer sleeve 401; First positioning surface of spacer sleeve 402; Inner hole thread of spacer sleeve 403; Piston rod 5; Positioning surface of piston rod 501; External thread of piston rod 502. Detailed Implementation

[0020] The following describes a specific embodiment of the present invention in detail with reference to the accompanying drawings. However, it should be understood that the scope of protection of the present invention is not limited to the specific embodiment.

[0021] Example 1:

[0022] like Figure 1-5As shown in the figure, an embodiment of the present invention provides a piston rod electroplating protective device, including a conductive body 2, which is sleeved and connected to the electroplating end of the piston rod 5. A protective sleeve 1, which can be a nylon protective sleeve, is sleeved and connected to one outer end of the conductive body 2. The protective sleeve 1 has a leakage hole 101. A cathode plate sleeve 3 and a spacer 4 are sequentially arranged on the inner side of the protective sleeve 1. The cathode plate sleeve 3 and the spacer 4 are respectively sleeved and connected to the conductive body 2. The cathode plate sleeve 3 has a cathode plate sleeve positioning hole 303. The outer diameter of the 3rd sleeve can be 30mm to 50mm larger than the diameter of the piston rod 5, and the length of the spacer 4 is 5mm to 15mm. The outer diameter of the spacer 4 is slightly smaller than the diameter of the piston rod 5 by 0.5mm to 1.0mm. This structure balances the electroplating current and ensures the plating size. During use, the cathode plate sleeve 3 replaces the cathode ring made of thin iron wire, which improves the stability of the plating size, reduces labor intensity, and the protective sleeve 1 and the conductor 2 do not need to be replaced. Only the cathode plate sleeve 3 and the spacer 4 need to be replaced, which can significantly reduce the cost of using electroplating protective equipment.

[0023] Specifically, the conductor 2 is connected to the piston rod external thread 502 of the piston rod 5 through the conductor internal hole thread 202.

[0024] Specifically, the conductor 2 is connected to the inner hole thread 103 of the protective sleeve 1 and the inner hole thread 403 of the spacer 4 via the outer circular thread 203 of the conductor, and the cathode plate sleeve 3 is fixed by the protective sleeves 1 and spacers 4 on both sides.

[0025] Specifically, the first positioning surface 102 of the protective sleeve 1 contacts and positions the conductive body positioning surface 201 of the conductive body 2 to determine the thread engagement length.

[0026] Specifically, the second positioning surface 104 of the protective sleeve 1 contacts the first positioning surface 302 of the cathode plate sleeve 3 to determine the axial position.

[0027] Specifically, the first positioning surface 402 of the spacer 4 contacts the end face of the second positioning surface 301 of the cathode plate sleeve 3 to determine a limited length.

[0028] Specifically, the second positioning surface 401 of the spacer 4 contacts the end face of the piston rod positioning surface 501 of the piston rod 5 to determine the engagement length of the conductor 2.

[0029] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A plating guard for a piston rod comprising an electrically conductive body (2), characterized in that: The electrically conductive body (2) is sleeved and connected on the electroplated end of the piston rod (5), the electrically conductive body (2) is sleeved and connected with the protective sleeve (1) on the outer side of one end, the protective sleeve (1) is provided with a leakage hole (101), the inner side of the protective sleeve (1) is sequentially provided with a cathode plate sleeve (3) and a spacer sleeve (4), the cathode plate sleeve (3) and the spacer sleeve (4) are respectively sleeved and connected on the electrically conductive body (2).

2. A plating guard for a piston rod according to claim 1, characterized in that: The electrically conductive body (2) is connected with the piston rod outer thread (502) of the piston rod (5) through the electrically conductive body inner hole thread (202).

3. A plating guard for a piston rod according to claim 2, characterized in that: The electrically conductive body (2) is respectively connected with the protective sleeve inner hole thread (103) of the protective sleeve (1) and the spacer sleeve inner hole thread (403) of the spacer sleeve (4) through the electrically conductive body outer circle thread (203), and the cathode plate sleeve (3) is limited and fixed through the protective sleeve (1) and the spacer sleeve (4) on both sides.

4. A plating guard for a piston rod according to claim 3, characterized in that: The protective sleeve first positioning surface (102) of the protective sleeve (1) is in contact with the electrically conductive body positioning surface (201) of the electrically conductive body (2) to determine the thread rotation length.

5. A plating guard for a piston rod according to claim 3, characterized in that: The protective sleeve second positioning surface (104) of the protective sleeve (1) is in contact with the cathode plate sleeve first positioning surface (302) of the cathode plate sleeve (3) to determine the axial position.

6. A plating guard for a piston rod according to claim 3, characterized in that: The spacer sleeve first positioning surface (402) of the spacer sleeve (4) is in end surface contact with the cathode plate sleeve second positioning surface (301) of the cathode plate sleeve (3) to determine the length.

7. A plating guard for a piston rod according to claim 3, characterized in that: The spacer sleeve second positioning surface (401) of the spacer sleeve (4) is in end surface contact with the piston rod positioning surface (501) of the piston rod (5) to determine the rotation length of the electrically conductive body (2).

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