Shaft sleeve part local electroplating insulation device

Abstract

The utility model discloses a local electroplating insulation device for a shaft sleeve type part, which relates to the technical field of electrochemical surface treatment, the shaft sleeve type part is provided with a first end and a second end, the second end is internally provided with a platform surface, and the insulation device comprises a first cover plate, a second cover plate and an outer protective sleeve, the first cover plate is provided with a bearing part used for bearing the first end of the shaft sleeve type part and a blocking part used for blocking an inner hole of the first end. The second cover plate is provided with a shielding part for shielding an internal platform surface of the second end; the fastening assembly is used for tightly pressing the first cover plate and the second cover plate towards the middle parts of the first end and the second end; and the outer protective sleeve is used for shielding the part, which does not need to be electroplated, outside the shaft sleeve part. According to the utility model, the first cover plate, the second cover plate and the outer protective sleeve are arranged to insulate and isolate the parts, which do not need to be electroplated, of the shaft sleeve parts, so that the operation steps are greatly simplified, the use of insulating glue with pungent smell is avoided, the rejection rate is reduced, and the body health of staff is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of electrochemical surface treatment, in particular to a local electroplating insulation device for bushing parts. Background Technique

[0002] During the surface treatment electroplating process of steel parts, some products only require local electroplating. There are many methods for local electroplating. The most common ones are the encapsulation method and the glue coating method. The encapsulation method is to use insulating materials such as plastic films, tapes, plastic pipes, and rubber plugs to block and wrap the non-plated parts. Although this method is simple and convenient, it is not easy to insulate parts with complex shapes; the glue coating method is time-consuming, has a long waiting time, low production efficiency, and the insulating glue has a volatile pungent smell, which is not conducive to the physical health of employees.

[0003] During the surface treatment process in the workshop, there are weak links in the insulation protection step of parts. A certain bushing part (as shown in Figure 2 ) requires electroplating on the outer circle of φ100mm on the left side (length 25mm) and the inner circle surface of φ180mm on the right side (length only 5mm) of the part. Among them, there are 8 - φ20mm holes evenly distributed along the circumference on the right inner circle end face, and the outer diameter of the hole is only 2.5mm away from the inner diameter of φ180mm. When this part is produced, the insulation is difficult. Especially after electroplating the 5mm φ180mm on the right side, there are different degrees of non-plated phenomena in multiple φ20mm holes. Repeated insulation - electroplating - stripping, the operation difficulty coefficient is high, the time cost is high, the one-time electroplating qualification rate is low, resulting in waste of time and personnel. 95% of the parts generally need to be repeatedly processed to meet the electroplating requirements. Content of the Utility Model

[0004] The purpose of the utility model is to provide a local electroplating insulation device for bushing parts to solve the problems existing in the above-mentioned prior art, locally protect the bushing parts that need local electroplating, simplify the operation steps, and reduce the scrap rate.

[0005] To achieve the above purpose, the utility model provides the following scheme:

[0006] A local electroplating insulation device for bushing parts, the bushing part has a first end and a second end, and there is a platform surface inside the second end. The insulation device includes a first cover plate, a second cover plate, and an outer protective sleeve. The first cover plate has a supporting part for supporting the first end of the bushing part and a blocking part for blocking the inner hole of the first end; the second cover plate has a shielding part for shielding the platform surface inside the second end; it also includes a fastening component for pressing the first cover plate and the second cover plate towards the middle of the first end and the second end; the outer protective sleeve is used to shield the parts of the bushing part that do not need electroplating outside.

[0007] Preferably, a first seal and a second seal are further included. The first seal is located between the first cover plate and the bushing-like part, and the second seal is located between the second cover plate and the bushing-like part.

[0008] Preferably, the first cover plate is a circular plate with a boss in the middle. The boss is the plugging part, and the outer edge of the circular plate is the supporting part.

[0009] Preferably, the first seal covers the top surface and side surface of the boss and the part where the outer edge of the circular plate contacts the bushing-like part.

[0010] Preferably, the diameters of the second cover plate and the second seal are 1-3 mm smaller than the inner diameter of the second end of the bushing-like part.

[0011] Preferably, the fastening assembly includes a screw and a nut. One end of the screw is threadedly connected to the first cover plate, and the other end passes through the second cover plate and is fastened by the nut.

[0012] Preferably, the second cover plate is provided with an inlet for the screw to pass through, and the inlet is provided with a flange that abuts against the nut.

[0013] Preferably, an anti-wear member is arranged in the inlet, and the anti-wear member is used to isolate the inlet from the screw and the inlet from the nut.

[0014] Preferably, the anti-wear member is a nylon sleeve.

[0015] Preferably, a conductive gasket in contact with the internal step of the bushing-like part is further included, and the conductive gasket is fixed on the screw by nuts arranged on both sides thereof.

[0016] The present utility model has achieved the following technical effects compared with the prior art:

[0017] By providing the first cover plate, the second cover plate and the outer protective sleeve to insulate and isolate the parts of the bushing-like part that do not need electroplating, compared with the conventional encapsulation method and glue coating method, the operation steps are greatly simplified, the rejection rate is reduced, and at the same time, the use of insulating glue with pungent smell is avoided, and the harm to the physical health of employees is avoided. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1Structural schematic diagram of a partial electroplating insulation device for bushing parts disclosed by the present utility model;

[0020] Figure 2 It is a bushing part that needs partial electroplating;

[0021] Among them, 1. Outer protective sleeve; 2. Second cover plate; 3. Anti-wear part; 4. Screw; 5. Conductive gasket; 6. Nut; 7. First cover plate; 8. Nut; 9. Bushing part; 10. First end; 11. Second end. Specific implementation manners

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present utility model.

[0023] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the limited conditions under which the present utility model can be implemented. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model. In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise stated, the meaning of "a plurality" is two or more.

[0024] It should also be noted that in the embodiments of the present application, the same reference numerals are used to represent the same component or the same part.

[0025] The purpose of the present utility model is to provide a partial electroplating insulation device for bushing-like parts, so as to solve the problems existing in the prior art, locally protect the bushing-like parts that need to be partially electroplated, simplify the operation steps, and reduce the scrap rate.

[0026] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Please refer to Figure 1 , this embodiment provides a partial electroplating insulation device for bushing-like parts. The bushing-like part 9 has a through first end 10 and a second end 11. The outer diameter of the first end 10 is φ100, the inner diameter of the second end 11 is φ180, and the inner part of the second end 11 has a flat surface with 8 φ20 holes evenly arranged. The insulation device includes a first cover plate 7 and a second cover plate 2. The first cover plate 7 has a supporting portion for supporting the first end 10 of the bushing-like part 9 and a blocking portion for blocking the inner hole of the first end 10. The second cover plate 2 has a shielding portion for shielding the flat surface inside the second end 11. It also includes a fastening assembly for pressing the first cover plate 7 and the second cover plate 2 towards the middle of the first end 10 and the second end 11. The outer protective sleeve 1 is used to shield the parts of the bushing-like part 9 that do not need to be electroplated on the outside.

[0028] Specifically, the first cover plate 7 is a circular plate with a boss in the middle. The boss is the blocking portion, and the diameter of the boss is adapted to the inner diameter of the first end 10. The outer edge of the circular plate is the supporting portion, and the outer diameter of the supporting portion is slightly larger than the outer diameter of the first end 10.

[0029] It also includes a first sealing member and a second sealing member. The first sealing member is located between the first cover plate 7 and the bushing-like part 9, and covers the top surface and side surface of the boss and the part where the outer edge of the circular plate contacts the bushing-like part 9. The second sealing member is located between the second cover plate 2 and the bushing-like part 9. In order to prevent the second cover plate 2 from blocking the inner circular surface that needs to be electroplated at the second end 11 of the bushing-like part 9 during electroplating, the diameter size of the second cover plate 2 is set to be 1 - 3 mm smaller than the inner diameter of the second end 11, preferably 2 mm. A 1 mm thick rubber skin serving as the second sealing member is adhered to the part where the second cover plate 2 contacts the flat surface inside the second end 11. The rubber skin extends outward under the pressing action of the fastening assembly, ensuring the sealing performance and further shielding the flat part between the second cover plate 2 and the inner circular surface of the second end 11.

[0030] The fastening assembly includes a screw rod 4 and a nut 8. One end of the screw rod 4 is threadedly connected to a threaded hole opened on the first cover plate 7, and the other end passes through an inlet provided on the second cover plate 2 and is fastened by the nut 8. The inlet is provided with a flange that abuts against the nut 8.

[0031] Further, an anti-wear member 3 is provided inside the inlet. The anti-wear member 3 is used to isolate the inlet from the screw 4 and the inlet from the nut 8, thereby protecting the second cover plate 2. The anti-wear member 3 can be made of any material that can achieve anti-wear in the prior art, and a nylon sleeve is preferably used.

[0032] This embodiment further includes a conductive gasket 5 that contacts the inner step of the bushing-like part 9. The conductive gasket 5 is fixed to the screw 4 by nuts 6 provided on both sides thereof.

[0033] The assembly process of this embodiment is as follows:

[0034] Before insulation assembly, first stick a 1-mm-thick rubber sheet for the first seal on the contact part between the first cover plate 7 and the part. Then screw one end of the screw 4 into the threaded hole on the first cover plate 7. Since the first seal covers the top surface and side surface of the boss that is the plugging part of the first cover plate 7 and the outer edge of the circular plate of the seat supporting part where it contacts the bushing-like part 9, and has a relatively large extended area, in this embodiment, a nut 6 screwed onto the screw 4 is used to fix the first seal between the nut 6 and the first cover plate 7 to ensure its stability. At the same time, this nut 6 also plays a role in limiting the relative position between the screw 4 and the first cover plate 7. Then fix the conductive gasket 5 to the corresponding height of the step in the inner cavity of the bushing-like part 9 by using the nut 6 on the screw 4 for contacting the bushing-like part 9 to achieve electrical conductivity. Then install the nylon sleeve as the anti-wear member 3 inside the inlet of the second cover plate 2.

[0035] During insulation assembly, wrap the outer protective sleeve 1 around the outer surface of the bushing-like part 9 that does not need to be electroplated. Place the first cover plate 7 with the assembled screw 4 on the operating table, and then pass the screw 4 through the inner cavity of the bushing-like part 9, so that the first end 10 of the bushing-like part 9 is placed on the supporting part of the first cover plate 7, that is, the outer edge of the circular plate. At this time, the conductive gasket 5 fixed on the screw 4 just abuts against the step in the inner cavity of the bushing-like part 9. Then pass the second cover plate 2 through the screw 4 and place it on the platform surface inside the second end 11 of the bushing-like part 9. Finally, use a wrench to tighten and fix the second cover plate 2 and the nut 8, and the insulation assembly of the bushing-like part 9 can be completed.

[0036] After using the insulation device of the above embodiment, the qualified rate of electroplating the bushing-like part 9 at one time is increased to 100%, effectively avoiding serious non-plating phenomena and problems of repeated operations, and improving production efficiency.

[0037] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0038] If the present utility model discloses or involves components or structural members that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (such as using bolts or screws for connection), or it can be understood as: a non-detachable fixed connection (such as riveting, welding). Of course, the mutual fixed connection can also be replaced by an integral structure (such as manufactured by integral forming using a casting process) (except where it is clearly impossible to adopt the integral forming process).

[0039] In addition, for any technical solution disclosed in the present utility model, the terms used to represent the positional relationship or shape, unless otherwise stated, include states or shapes that are approximate, similar, or close thereto.

[0040] Any component provided by the present utility model can either be assembled from a plurality of separate components or be a single component manufactured by an integral forming process.

[0041] Adaptations made according to actual needs are all within the protection scope of the present utility model.

[0042] It should be noted that for those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0043] Specific examples are used in the present utility model to elaborate on the principles and implementation manners of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model; at the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. A local electroplating insulation device for a sleeve-like part, the sleeve-like part having a first end and a second end, the second end having a platform surface inside, characterized in that: It includes a first cover plate, a second cover plate and an outer protective sleeve, the first cover plate has a supporting portion for supporting the first end of the sleeve-like part, and a sealing portion for sealing the inner hole of the first end; the second cover plate has a shielding portion for shielding the internal platform surface of the second end; it also includes a fastening assembly for pressing the first cover plate and the second cover plate to the middle of the first end and the second end; the outer protective sleeve is used to shield the outer part of the sleeve-like part that does not need to be electroplated.

2. The local electroplating insulation device for sleeve parts according to claim 1 is characterized in that: It also includes a first seal and a second seal, wherein the first seal is located between the first cover plate and the shaft sleeve-like parts, and the second seal is located between the second cover plate and the shaft sleeve-like parts.

3. The local electroplating insulation device for sleeve parts according to claim 2 is characterized in that: The first cover plate is a circular plate with a boss in the middle, the boss is the blocking portion, and the outer edge of the circular plate is the supporting portion.

4. The local electroplating insulation device for sleeve parts according to claim 3 is characterized in that: The first sealing member covers the top surface and side surfaces of the boss and the portion where the outer edge of the circular plate contacts the sleeve-like parts.

5. The local electroplating insulation device for sleeve parts according to claim 2, characterized in that: The diameters of the second cover plate and the second seal are 1-3 mm smaller than the inner diameter of the second end of the sleeve-like component.

6. The local electroplating insulation device for sleeve parts according to any one of claims 1 to 5, characterized in that: The fastening assembly includes a screw and a nut. One end of the screw is threadedly connected to the first cover plate, and the other end passes through the second cover plate and is fastened by the nut.

7. The local electroplating insulation device for sleeve parts according to claim 6 is characterized in that: The second cover plate is provided with an inlet for the screw rod to pass through, and the inlet is provided with a flange abutting against the nut.

8. The local electroplating insulation device for sleeve parts according to claim 7, characterized in that: An anti-wear component is arranged in the inlet, and the anti-wear component is used to isolate the inlet from the screw rod and the inlet from the nut.

9. The local electroplating insulation device for sleeve parts according to claim 8, characterized in that: The anti-wear part is a nylon sleeve.

10. The local electroplating insulation device for sleeve parts according to claim 6, characterized in that: It also includes a conductive gasket that contacts the internal step of the sleeve-like parts, and the conductive gasket is fixed on the screw rod through nuts arranged on both sides thereof.

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