Local chromium plating device for connecting disc

Abstract

The utility model discloses a local chromium plating device for a connecting disc. The local chromium plating device comprises a cover plate, a short sheath, an upper protective plate, a lower protective plate, a long sheath and a long stud, the connecting disc is sequentially provided with a small end, a chromium plating section and a large end; every two connecting discs arranged in a mirroring mode form a group, and the large ends of the connecting discs are attached and fixedly connected through an upper protective plate and a lower protective plate which are attached to the step surfaces of the connecting discs; the local chromium plating device is suitable for local chromium plating of connecting disc parts, is good in manufacturability, reduces the labor intensity of operators, and improves the production efficiency. The outer sheath is sleeved from the outer sides of the upper protective plate and the lower protective plate, and a certain gap is reserved between the outer sheath and the part and between the outer sheath and the sheath, so that a solution can be smoothly discharged, and the problem that a bath solution entering the device cannot be timely discharged in the electroplating process is solved; the connecting bolts of the upper and lower protective plates and the parts are changed from double-end bolts to single-end screws, so that the assembly operation is simplified, the problems that the assembly of the chromium plating device is complicated and the production efficiency is influenced are solved, and meanwhile, the labor intensity of operators is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of surface treatment, and in particular relates to a local chrome plating device for a connecting plate, which is suitable for local chrome plating of connecting plate parts. Background Art

[0002] Connecting plates are common external cylindrical parts with partial chrome plating. They are typically chrome-plated after installation using the following method: The large end faces of the two connecting plates are mirror-interlocked, and upper and lower guard plates are assembled in pairs. The parts and the upper and lower guard plates are clamped together with stud bolts, connected via long stud screws. A cylindrical outer sheath is then secured within the slots of the upper and lower guard plates, surrounding and protecting the outer surface of the connecting plate. This creates a relatively enclosed space, further protecting the non-chrome-plated surface and enabling partial chrome plating. This design presents the following problems: The outer sheath, assembled with the upper and lower guard plates, forms a closed space, preventing the timely removal of the bath liquid that enters during the electroplating process; and the upper and lower guard plates are connected using stud bolts, which complicates assembly and ultimately affects production efficiency. Utility Model Content

[0003] The utility model provides a local chrome plating device for a connecting plate, and aims to solve the following technical problems: solving the problem that the tank liquid entering the device cannot be discharged in time during the electroplating process; solving the problems that the tank liquid cannot be discharged in time and the assembly is complicated.

[0004] In order to solve the above technical problems, the utility model provides a local chrome plating device for a connecting plate, which is characterized in that: it includes a cover plate, a short sleeve, an upper guard plate, a lower guard plate, a long sleeve, and a long stud bolt; the connecting plate is provided with a small end, a chrome-plated section and a large end in sequence; every two mirror-arranged connecting plates form a group, and their large ends are fitted and fixedly connected by an upper guard plate and a lower guard plate fitted with their step surfaces respectively, and the two groups of connecting plates are arranged up and down, and the small end faces of the two connecting plates located in the middle are fitted and covered with a long sleeve; the outer circle of the small ends of the connecting plates located at the upper and lower ends are each covered with a short sleeve, the cover plate is fixed to the end of the short sleeve and fits with the small end face of the corresponding connecting plate; the long stud bolt is fixed between the two cover plates.

[0005] The outer sheath is fixed to the outer circumference of the upper guard plate and the lower guard plate.

[0006] Beneficial Effects: This utility model is suitable for partial chrome plating of connector parts, has good processability, reduces operator labor intensity, and improves production efficiency. The outer sheath is inserted from the outside of the upper and lower guard plates, leaving a certain gap between the parts and the sheath, allowing the solution to drain smoothly, solving the problem of the bath liquid entering the device and not being able to be drained in time during the electroplating process. The connecting bolts between the upper and lower guard plates and the parts are changed from stud bolts to single-head screws, simplifying the assembly operation, solving the problem of complex assembly of chrome plating equipment that affects production efficiency, and reducing operator labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 Schematic diagram of the connection plate structure;

[0008] Figure 2 Upper guard plate

[0009] Figure 3 Lower guard plate

[0010] Figure 4 Assembly diagram of outer sheath and small screws

[0011] Figure 5 The utility model has an integral assembly structure. DETAILED DESCRIPTION

[0012] In order to make the purpose, content and advantages of the present invention clearer, the specific implementation methods of the present invention are further described in detail below.

[0013] The utility model proposes a local chrome plating device for a connecting plate, comprising a cathode hook assembly 1, an upper cover plate 2, a short sheath 3, an upper guard plate 4, a lower guard plate 5, a long sheath 6, an outer sheath 7, a long stud bolt 8, a single-head bolt 9, a small screw 10, a nut 11, and a lower cover plate 12; four parts can be installed;

[0014] The connecting plate is provided with a small end, a chrome-plated section and a large end in sequence;

[0015] The upper and lower cover plates are symmetrically arranged, and both the upper and lower cover plates and the short sleeve are processed into sizes matching the shape of the parts. The short sleeve is sleeved on the outer circle of the small end of the connecting plate, and the upper cover plate is fixed on the upper end of the short sleeve and fits with the upper end surface of the small end of the connecting plate;

[0016] The upper guard plate 4 and the lower guard plate 5 are respectively installed at the large ends of the two mirror-image connecting plates and the steps of the chrome-plated section. After the large end faces of the two mirror-image connecting plates are fitted together, the single-head bolts 9 are passed through the upper guard plate 4 and the lower guard plate 5 to connect and fix them; the outer sheath 7 is set at the outer circle of the large ends of the two mirror-image parts. The outer sheath 7 uses the annular groove of the upper guard plate 4 and the small screws 10 to form a snap-fit structure for assembly and fixation. After assembly, a certain gap is left between the parts, the upper guard plate 4, the lower guard plate 5 and the outer sheath 7 to facilitate timely discharge of liquid;

[0017] The connecting plate with the two small end faces in the middle fits together, and a long sheath 6 is used to match the outer circle of the small end of the part to protect the non-chrome-plated surface; the long stud bolts 8 pass through the upper cover, four parts and the lower cover in sequence and fix them together; the cathode hook assembly 1 is connected and fixed to the upper cover 2.

[0018] The utility model improves the structure of the upper guard plate, and makes a stepped hole on the surface for embedding the single-head bolt, and adds an annular groove on the side for forming a buckle structure (see Figure 3 ); Improve the structure of the lower guard plate and add threaded holes on the surface (see Figure 4); Improve the outer sheath material and structure, change from thin iron plate to hard polyvinyl chloride tube, add threaded holes on both sides to form a snap fit with the upper guard plate (see Figure 5 ) and first install the small screws on the outer sheath. When the outer sheath is assembled with the upper guard plate, the fitting relationship between the annular groove and the small screws forms a snap-fit structure, thereby achieving fixation. By improving the above-mentioned component structures of the chrome plating device and improving the assembly method, problems such as the inability to drain the bath liquid in a timely manner and the complex assembly process are resolved.

[0019] The connection method between the upper guard plate, lower guard plate and parts is changed from self-made stud bolts to single-head bolt standard parts for fixing, which makes the assembly method simpler and faster, improves efficiency and reduces labor intensity.

[0020] The upper and lower guard plates and outer sheath are assembled and fixed together using a snap-fit structure formed by a ring groove added to the upper guard plate and small screws, making the structure more secure. After assembly, a certain gap is left between the parts, the upper and lower guard plates, and the outer sheath, facilitating the timely discharge of liquids and improving product quality.

[0021] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A device for local chrome plating of a connection plate, characterized in that: It includes a cover plate, a short protective sleeve, an upper guard plate, a lower guard plate, a long protective sleeve, and a long stud bolt; the connecting plate is provided with a small end, a chrome-plated section and a large end in sequence; every two mirror-set connecting plates form a group, and their large ends are fitted and fixedly connected by the upper guard plate and the lower guard plate fitted with their step surfaces respectively, and the two groups of connecting plates are arranged up and down, and the small end faces of the two connecting plates located in the middle are fitted and covered with a long sleeve; the outer circle of the small ends of the connecting plates located at the upper and lower ends are each covered with a short sleeve, and the cover plate is fixed to the end of the short sleeve and fits with the small end face of the corresponding connecting plate; the long stud bolt is fixed between the two cover plates.

2. The device for partial chrome plating of a connection plate according to claim 1, characterized in that: The outer sheath is fixed to the outer circumference of the upper guard plate and the lower guard plate.

3. The device for partial chrome plating of a connection plate according to claim 1, characterized in that: The cover plate located above is connected to the cathode hook assembly.

4. The device for partial chrome plating of a connection plate according to claim 1, characterized in that: The upper guard plate and the lower guard plate are respectively installed on the large ends of the two mirror-image connecting plates and the steps of the chrome-plated section.

5. The device for partial chrome plating of a connection plate according to claim 1, characterized in that: The upper guard plate and the lower guard plate are connected and fixed by single-head bolts.

6. The device for partial chrome plating of a connection plate according to claim 2, characterized in that: The outer sheath is assembled and fixed using a snap-fit structure formed by the annular groove of the upper guard plate and small screws.

7. The device for partial chrome plating of a connection plate according to claim 1, characterized in that: There is a certain gap between the connecting plate, the upper guard plate, the lower guard plate and the outer sheath.

8. The device for partial chrome plating of a connection plate according to claim 1, characterized in that: A stepped hole is made on the surface of the upper guard plate for embedding single-head bolts, and an annular groove is provided on the side for forming a snap-fit structure with small screws.

9. The device for partial chrome plating of a connection plate according to claim 1, characterized in that: The outer sheath is made of hard polyvinyl chloride tube.

10. The device for partial chrome plating of a connection plate according to claim 1, characterized in that: The surface of the lower guard plate is provided with threaded holes.

Images