Runway part chromium plating clamp

Abstract

The utility model belongs to the technical field of chromium plating tool clamps, and particularly relates to a runway part chromium plating clamp which is used for clamping runway parts when outer rings of the runway parts are subjected to chromium plating. The clamp comprises a first clamp body, a second clamp body and a third clamp body; when the clamp clamps the part, the first clamp body is attached to the side, provided with the inner concave ring, of the clamp body based on the chamfering ring, and the part is sleeved with the small-diameter cylinder from the side, not provided with the inner concave ring, of the part. And the third clamp body is arranged between the large-diameter cylinder and the part. According to the utility model, the chamfer ring of the first clamp body is arranged to be matched with the chamfer of the part, so that the situation that the clamp absorbs more current due to poor insulation can be prevented, the situation that the current of the chromium-plated surface of the part is too small or inaccurate is avoided, and the technical problems of slow deposition of a chromium layer, long electroplating time and high electricity consumption can be further avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to chromium plating frock clamp technical field, concretely relates to a race track part chromium plating fixture. BACKGROUND

[0002] The race track is mainly made of 40CrNiMo, and generally adopts the surface treatment method of electroplating chromium to reduce the surface friction coefficient and improve the wear resistance. The design requires that the W surface (the outer cylindrical surface) be plated with chromium, and the chamfer on both sides of the W surface be a transition zone. The hole is not allowed to have a chromium layer, and the thickness of the chromium plating layer is required to reach 130-150 um. However, due to the design and production requirements of the electroplating fixture, the following problems occur: the chromium plating layer on the outer cylindrical surface of the product is rough, chromium accumulates on the chamfer after plating, and the chromium layer on the chamfer of the outer cylindrical surface collapses and is missing after deburring. To ensure product quality, multiple repairs are required, resulting in serious production waste. During batch production of the race track, the following problems often occur: the chromium plating layer on the outer cylindrical surface of the entire slot part is rough, chromium accumulates on the chamfer after plating, and the chromium layer on the chamfer of the outer cylindrical surface collapses and is missing after deburring. To ensure product quality, multiple repairs are required, affecting the processing quality and progress of the product, and even causing the scrap of the part. During chromium plating, ordinary anodes are used, and the fixture is not properly insulated, resulting in uneven current distribution and poor uniformity of the chromium plating layer. The fixture absorbs a large amount of current, causing unstable current absorption of the part. The hole is not allowed to have a chromium layer, but the hole is very close to the W surface. If the hole is protected by using a fixture to block it, the fixture will steal a lot of electricity, the chromium plating deposition speed on the chromium plating surface near the hole will be slow, and the thickness requirement cannot be met. Even if the electroplating time is extended, the thickness of the chromium plating surface far from the hole will exceed the upper limit, the surface will be rough, and the chromium plating layer will be thick. SUMMARY

[0003] Therefore, the utility model provides a race track part chromium plating fixture, sets up the chamfer ring of the first clamping body as adapting to the chamfer of the part, can prevent the fixture from absorbing too much current due to insufficient insulation, thereby avoiding too small or inaccurate current on the chromium plating surface of the part, and further avoiding slow chromium layer deposition, long electroplating time, and large power consumption.

[0004] The technical scheme of the utility model is as follows:

[0005] A race track part chromium plating fixture is used to clamp a part during chromium plating of the outer ring of the part. The part is ring-shaped and has an inner recessed ring at one end.

[0006] The fixture includes:

[0007] The first clamping body is a cylindrical body with one open end and one closed end, and has a chamfer ring at the open end. The chamfer ring is conformally arranged at one end of the inner recessed ring of the part.

[0008] The second clamping part comprises a large-diameter cylinder and a small-diameter cylinder coaxially connected; the diameter of the large-diameter cylinder is larger than the inner diameter of the side of the part without the inner recess ring; and the small-diameter part is smaller than or equal to the inner diameter of the side of the part without the inner recess ring;

[0009] The third clamping part is a circular ring and is arranged in abutment with the side of the part without the inner recess ring;

[0010] When the clamp clamps the part, the first clamping part is in abutment with the side of the part provided with the inner recess ring based on the chamfer ring, the small-diameter cylinder is sleeved into the part from the side of the part without the inner recess ring, and the third clamping part is arranged between the large-diameter cylinder and the part.

[0011] Further, in addition to the non-insulating ring arranged at the chamfer ring, an insulating rubber layer is arranged on the inner and outer surfaces of the first clamping part.

[0012] Further, the width of the non-insulating ring is 17-23 mm.

[0013] Further, the width of the non-insulating ring is 20 mm.

[0014] Further, the clamp further comprises a fixing bolt and a fixing nut.

[0015] One end of the fixing bolt is fixed on the first clamping part and is coaxially arranged with the first clamping part.

[0016] When the clamp clamps the part, the bolt passes through the part, the third clamping part and the second clamping part to reach the end of the large-diameter cylinder away from the first clamping part and is screwed with the fixing nut.

[0017] Further, the outer diameter of the first clamping part is consistent with the outer diameter of the part.

[0018] Further, the diameter of the large-diameter cylinder is consistent with the outer diameter of the part.

[0019] Further, the outer diameter of the second clamping part is consistent with the outer diameter of the part.

[0020] Further, exhaust holes are arranged on the first clamping part and the second clamping part.

[0021] Other beneficial effects of the utility model:

[0022] The utility model coats high-temperature insulating rubber powder on the surface of the first clamping part, improves the protection effect, significantly reduces the absorption current, accurately controls the current of the chromium-plated surface, and greatly reduces the chromium-plating time.

[0023] The utility model discloses a 20mm no -glue powder is reserved at chamfer ring, through this part surface absorption part chamfer surface current, make chamfer surface current reduce, reduce chromium layer deposition.

[0024] The utility model discloses setting the third clamping body of ring, place between second clamping body and part, play the conductive effect, guarantee the uniformity of the surface current of part close to second clamping body one side. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme of the embodiment of the present disclosure, the drawings needed in the embodiment will be briefly introduced as follows, and obviously, the drawings in the following description are only some embodiments of the present disclosure, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0026] Figure 1 It is the structure diagram of part;

[0027] Figure 2 It is the structure diagram of first clamping body;

[0028] Figure 3 It is the structure diagram of second clamping body;

[0029] Figure 4 It is the structure diagram of third clamping body;

[0030] Figure 5 It is the state diagram of runway part chromium plating fixture clamping part;

[0031] Wherein: 1, first clamping body;2, second clamping body;3, third clamping body;4, part. DETAILED DESCRIPTION

[0032] The embodiment of the present disclosure will be described in detail below with reference to the drawings.

[0033] The embodiments of the present disclosure will be described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the disclosure. Obviously, the described embodiments are only some of the embodiments of the present disclosure, not all. The present disclosure can also be implemented or applied by other different specific embodiments, and the details in the specification can be modified or changed based on different views and applications without departing from the spirit of the present disclosure. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present disclosure.

[0034] It is to be understood that the embodiments described herein are for illustrative purposes and that various modifications or changes in light thereof will be suggested to persons skilled in the art and are to be included within the spirit and purview of this disclosure and scope of the appended claims. It is also to be understood that the various aspects described herein can be implemented in any number of forms, and that the specific

[0035] It is also to be understood that the drawings provided herein are for illustrative purposes only and that the actual implementation of the present disclosure can vary in terms of shape, size, and arrangement of components, and that the layout of components can be more complex.

[0036] In addition, in the following description, specific details are provided to thoroughly understand examples. However, one having ordinary skill in the art will understand that the described aspects can be practiced without these specific details.

[0037] In an embodiment of the present application, a runway part chromium plating clamp is provided, referring to Figures 1-5 , used for clamping the part 4 when the outer ring of the part 4 is chromium plated; the part 4 is annular, one end is provided with an inner concave ring;

[0038] The clamp comprises:

[0039] The first clamp body 1 is a cylinder with one open end and one closed end, and the open end is provided with a chamfered ring; the chamfered ring is conformally arranged with one end of the inner concave ring of the part 4;

[0040] The second clamp body 2 comprises a large-diameter cylinder and a small-diameter cylinder connected coaxially; the diameter of the large-diameter cylinder is greater than the inner diameter of the side of the part 4 which is not provided with an inner concave ring; the small-diameter part is less than or equal to the inner diameter of the side of the part 4 which is not provided with an inner concave ring;

[0041] The third clamp body 3 is a circular ring, which is arranged in close contact with the side of the part 4 which is not provided with an inner concave ring;

[0042] Wherein: when the clamp clamps the part 4, the first clamp body 1 is arranged in close contact with the side of the part 4 which is provided with an inner concave ring based on the chamfered ring, and the small-diameter cylinder is sleeved into the part 4 from the side of the part 4 which is not provided with an inner concave ring; the third clamp body 3 is arranged between the large-diameter cylinder and the part 4.

[0043] In the embodiment, in addition to the non-insulating ring arranged at the chamfer ring, the inner and outer surfaces of the first clamping body 1 are provided with an insulating glue layer.

[0044] In the embodiment, the width of the non-insulating ring is 17-23 mm.

[0045] In the embodiment, the width of the non-insulating ring is 20 mm.

[0046] In the embodiment, the clamp further comprises a fixing bolt and a fixing nut;

[0047] One end of the fixing bolt is fixed on the first clamping body 1 and arranged coaxially with the first clamping body 1.

[0048] When the clamp clamps the part 4, the bolt passes through the part 4, the third clamping body 3 and the second clamping body 2 to reach the fixing nut threaded at the end of the large-diameter cylinder away from the first clamping body 1.

[0049] In the embodiment, the outer diameter of the first clamping body 1 is consistent with the outer diameter of the part 4.

[0050] In the embodiment, the diameter of the large-diameter cylinder is consistent with the outer diameter of the part 4.

[0051] In the embodiment, the outer diameter of the second clamping body 2 is consistent with the outer diameter of the part 4.

[0052] In the embodiment, the first clamping body 1 and the second clamping body 2 are both provided with exhaust holes.

[0053] In the embodiment, the thickness of the chromium plating layer is required to reach 130-150 um, and the width of the non-insulating ring is selected to be 17-23 mm, which can ensure uniform plating and maximize plating speed.

[0054] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and any changes or replacements within the technical range disclosed by the present disclosure can be easily thought of by those skilled in the art, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A runway part chrome plating jig characterized by, The utility model relates to a fixture for clamping a runway part when chrome-plating the outer ring of the part; the part is ring-shaped and has an inner recessed ring at one end; The fixture comprises: A first fixture body in the shape of a cylinder with one open end and one closed end, the open end being provided with a chamfered ring; the chamfered ring is conformal with one end of the inner recessed ring of the part; A second fixture body comprising a large-diameter cylinder and a small-diameter cylinder coaxially connected; the diameter of the large-diameter cylinder is greater than the inner diameter of the side of the part not provided with the inner recessed ring; the small-diameter part is less than or equal to the inner diameter of the side of the part not provided with the inner recessed ring; A third fixture body in the shape of a ring, which is in contact with the side of the part not provided with the inner recessed ring; When the fixture clamps the part, the first fixture body is in contact with the side of the part provided with the inner recessed ring based on the chamfered ring, the small-diameter cylinder is sleeved into the part from the side of the part not provided with the inner recessed ring, and the third fixture body is arranged between the large-diameter cylinder and the part.

2. The raceway component chrome plating fixture of claim 1, wherein, In addition to the non-insulating ring arranged at the chamfered ring, an insulating rubber layer is arranged on the inner and outer surfaces of the first fixture body.

3. The raceway component chrome plating fixture of claim 2, wherein, The width of the non-insulating ring is 17-23 mm.

4. The raceway component chrome plating fixture of claim 3, wherein, The width of the non-insulating ring is 20 mm.

5. The raceway component chrome plating fixture of claim 1, wherein, The fixture further comprises a fixing bolt and a fixing nut; One end of the fixing bolt is fixed to the first fixture body and coaxially arranged with the first fixture body; When the fixture clamps the part, the bolt passes through the part, the third fixture body and the second fixture body to reach the end of the large-diameter cylinder away from the first fixture body and is screwed with the fixing nut.

6. The raceway component chrome plating fixture of claim 1, wherein, The outer diameter of the first fixture body is consistent with the outer diameter of the part.

7. The raceway component chrome plating fixture of claim 1, wherein, The diameter of the large-diameter cylinder is consistent with the outer diameter of the part.

8. The raceway component chrome plating fixture of claim 1, wherein, The outer diameter of the second fixture body is consistent with the outer diameter of the part.

9. The raceway component chrome plating fixture of claim 1, wherein, Exhaust holes are arranged on the first fixture body and the second fixture body.

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