Rotary clamping device for hard chromium electroplating

Abstract

The utility model relates to the technical field of electroplating, and particularly discloses a rotary clamping device for hard chromium electroplating, which comprises a bottom frame and a top frame positioned above the bottom frame, a plurality of clamping structures are mounted on the upper end surface of the bottom frame, and each clamping structure comprises a first fixing cylinder fixedly connected with the bottom frame, a first fixing cylinder is arranged on the upper portion of the bottom frame, a second fixing cylinder is arranged above the first fixing cylinder, lining plates are arranged on the outer wall of the first fixing cylinder and the outer wall of the second fixing cylinder, spring assemblies fixedly connected with the lining plates are installed on the outer wall of the first fixing cylinder and the outer wall of the second fixing cylinder, and the distance between the bottom frame and the top frame is adjusted according to the height of the electroplating pipe. And secondly, an inner rod and a second fixing barrel are unfolded, a to-be-electroplated pipe is connected to the outer wall of a clamping structure in a sleeving mode, the to-be-electroplated pipe is limited from the inner wall of the electroplated pipe, and tubular workpieces with different pipe diameters can be limited and fixed, so that the applicability of the equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of electroplating technology, specifically a rotary clamping device for hard chrome electroplating. Background Technology

[0002] Electroplating is a process that uses the principle of electrolysis to deposit a layer of metal onto a conductive material. Electroplating refers to a surface finishing method in which the substrate metal is used as the cathode in a salt solution containing metals such as potassium gold cyanide or potassium gold citrate. Through electrolysis, the cations of the metal to be plated in the plating solution are deposited on the surface of the substrate metal, forming a coating.

[0003] During hard chrome plating, a clamping device is required to fix the hard chrome in place.

[0004] Currently, most electroplating processes can only clamp rectangular parts, while for some tubular workpieces, it is impossible to limit the electroplating according to the different diameters of the tubes. Therefore, it is necessary to propose a rotary clamping device for hard chrome plating to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this utility model is to provide a rotary clamping device for hard chrome plating, which limits the position of the electroplating tube from the inner wall and can limit and fix tubular workpieces of different diameters, thereby improving the applicability of the equipment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rotary clamping device for hard chrome plating, comprising a base frame and a top frame located above the base frame. A mounting plate is fixedly connected to the middle of the upper end face of the top frame. Multiple clamping structures are installed on the upper end face of the base frame. Each clamping structure includes a first fixed cylinder fixedly connected to the base frame. A second fixed cylinder is disposed above the first fixed cylinder. An inner rod is slidably connected between the first and second fixed cylinders. An inner liner plate is provided on the outer wall of both the first and second fixed cylinders. A spring assembly fixedly connected to the inner liner plate is installed on the outer wall of both the first and second fixed cylinders.

[0007] A threaded cylinder is fixedly connected to the left side of the upper end face of the base frame, and a threaded rod is threadedly connected to the inner wall of the threaded cylinder. A motor with its output end fixedly connected to the threaded rod is installed on the upper end face of the top frame.

[0008] In order to support the tubular workpiece placed on the outer wall of the clamping structure, as a preferred embodiment of the rotary clamping device for hard chrome plating of this utility model, a support plate is fixedly connected to the outer wall of the first fixed cylinder.

[0009] In order to stabilize the distance between the base frame and the top frame, as a preferred embodiment of the rotary clamping device for hard chrome plating of this utility model, a telescopic cylinder is installed on the right side between the base frame and the top frame.

[0010] In order to increase the friction between the inner liner plate and the tubular workpiece, as a preferred embodiment of the rotary clamping device for hard chrome plating of this utility model, a rubber pad is fixedly connected to the outer wall of the inner liner plate.

[0011] In order to limit and fix the first and second fixed cylinders to the inner rod, as a preferred embodiment of the rotary clamping device for hard chrome plating of this utility model, the first and second fixed cylinders are both connected to the inner rod by bolts.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention first adjusts the distance between the base frame and the top frame to accommodate tubular workpieces of different heights. Then, the tubular workpiece to be electroplated is fitted onto the outer wall of the clamping structure. At the same time, the inner liner plate is attached to the inner wall of the electroplating tube under the elastic force of the spring assembly, limiting its position from the inner wall of the electroplating tube. It can also limit and fix tubular workpieces of different diameters, thereby improving the applicability of the equipment. Attached Figure Description

[0014] Figure 1 This is an overall structural diagram of the present invention;

[0015] Figure 2 This is a cross-sectional view of the clamping structure of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the clamping structure of this utility model.

[0017] In the diagram: 1. Base frame; 101. Top frame; 102. Mounting plate; 2. Threaded rod; 201. Motor; 202. Threaded cylinder; 203. Telescopic cylinder; 3. Clamping structure; 301. First fixed cylinder; 302. Inner rod; 303. Support plate; 304. Spring assembly; 305. Inner liner plate; 306. Rubber pad; 307. Second fixed cylinder. Detailed Implementation

[0018] Please see Figures 1 to 3A rotary clamping device for hard chrome plating includes a base frame 1 and a top frame 101 located above the base frame 1. A mounting plate 102 is fixedly connected to the middle of the upper end face of the top frame 101. Multiple clamping structures 3 are installed on the upper end face of the base frame 1. Each clamping structure 3 includes a first fixing cylinder 301 fixedly connected to the base frame 1. A second fixing cylinder 307 is provided above the first fixing cylinder 301. An inner rod 302 is slidably connected between the first fixing cylinder 301 and the second fixing cylinder 307. An inner lining plate 305 is provided on the outer wall of both the first fixing cylinder 301 and the second fixing cylinder 307. A spring assembly 304 fixedly connected to the inner lining plate 305 is installed on the outer wall of both the first fixing cylinder 301 and the second fixing cylinder 307.

[0019] A threaded cylinder 202 is fixedly connected to the left side of the upper end face of the base frame 1. A threaded rod 2 is threadedly connected to the inner wall of the threaded cylinder 202. A motor 201 with its output end fixedly connected to the threaded rod 2 is installed on the upper end face of the top frame 101.

[0020] In this embodiment: the motor 201 is started according to the height of the electroplating tube, so that the motor 201 drives the threaded rod 2 to rotate, causing the threaded cylinder 202 to move down on the outer wall of the threaded rod 2, thereby adjusting the distance between the base frame 1 and the top frame 101, which is convenient for pipes of different heights;

[0021] Next, according to the height of the electroplating tube, the second fixing cylinder 307 is pulled upward, so that the second fixing cylinder 307 moves upward along the outer wall of the inner rod 302, and the inner rod 302 and the second fixing cylinder 307 are unfolded until they match the height of the electroplating tube. Then, the inner liner plate 305 is manually squeezed, and the tubular workpiece to be electroplated is fitted onto the outer wall of the clamping structure 3 until the electroplating tube is completely fitted onto the outer wall of the clamping structure 3. Under the elastic force of the spring assembly 304, the inner liner plate 305 is attached to the inner wall of the electroplating tube and is limited from the inner wall of the electroplating tube. It can limit and fix tubular workpieces of different diameters, thereby improving the applicability of the equipment.

[0022] As a technical optimization of this utility model, a support plate 303 is fixedly connected to the outer wall of the first fixed cylinder 301.

[0023] In this embodiment, the tubular workpiece placed on the outer wall of the clamping structure 3 can be supported by the support plate 303.

[0024] As a technical optimization of this utility model, a telescopic cylinder 203 is installed on the right side between the base frame 1 and the top frame 101.

[0025] In this embodiment: the telescopic cylinder 203 can assist the threaded rod 2 and the threaded cylinder 202 in unfolding, thereby stabilizing and adjusting the distance between the base frame 1 and the top frame 101.

[0026] As a technical optimization of this utility model, a rubber pad 306 is fixedly connected to the outer wall of the inner lining plate 305.

[0027] In this embodiment, the rubber pad 306 can protect the electroplating tube while increasing the friction between the inner lining plate 305 and the tubular workpiece.

[0028] As a technical optimization of this utility model, the first fixed cylinder 301 and the second fixed cylinder 307 are both connected to the inner rod 302 by bolts.

[0029] In this embodiment, the first fixed cylinder 301 and the second fixed cylinder 307 can be fixed and limited between the inner rod 302 by bolts.

[0030] Working principle: First, the entire structure is connected to the rotating structure through the mounting plate 102. Then, the motor 201 is started according to the height of the tubular workpiece, so that the motor 201 drives the threaded rod 2 to rotate, causing the threaded cylinder 202 to move down on the outer wall of the threaded rod 2. The telescopic cylinder 203 can help adjust the distance between the base frame 1 and the top frame 101, thus making it suitable for tubular workpieces of different heights.

[0031] Next, according to the height of the electroplating tube, the second fixing cylinder 307 is pulled upward, so that the second fixing cylinder 307 moves upward along the outer wall of the inner rod 302, and the inner rod 302 and the second fixing cylinder 307 are unfolded until they match the height of the electroplating tube, and then fixed with bolts. Then, the inner liner plate 305 is manually squeezed, and the tubular workpiece to be electroplated is fitted onto the outer wall of the clamping structure 3 until the electroplating tube is completely fitted onto the outer wall of the clamping structure 3. At the same time, the lower end face of the electroplating tube is located on the support plate 303, and the inner liner plate 305 is in contact with the inner wall of the electroplating tube under the elastic force of the spring assembly 304, limiting its position from the inner wall of the electroplating tube. It can limit and fix tubular workpieces of different diameters, thereby improving the applicability of the equipment.

[0032] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rotary clamping device for hard chrome plating, comprising a base frame (1) and a top frame (101) located above the base frame (1), wherein a mounting plate (102) is fixedly connected to the middle of the upper end face of the top frame (101), characterized in that: The upper end face of the base frame (1) is equipped with a plurality of clamping structures (3). The clamping structure (3) includes a first fixed cylinder (301) fixedly connected to the base frame (1), a second fixed cylinder (307) is provided above the first fixed cylinder (301), an inner rod (302) is slidably connected between the first fixed cylinder (301) and the second fixed cylinder (307), an inner liner plate (305) is provided on the outer wall of both the first fixed cylinder (301) and the second fixed cylinder (307), and a spring assembly (304) fixedly connected to the inner liner plate (305) is installed on the outer wall of the first fixed cylinder (301) and the second fixed cylinder (307). A threaded cylinder (202) is fixedly connected to the left side of the upper end face of the base frame (1), and a threaded rod (2) is threadedly connected to the inner wall of the threaded cylinder (202). A motor (201) with its output end fixedly connected to the threaded rod (2) is installed on the upper end face of the top frame (101).

2. The rotary clamping device for hard chrome plating according to claim 1, characterized in that: A support plate (303) is fixedly connected to the outer wall of the first fixed cylinder (301).

3. The rotary clamping device for hard chrome plating according to claim 1, characterized in that: A telescopic cylinder (203) is installed on the right side between the base frame (1) and the top frame (101).

4. The rotary clamping device for hard chrome plating according to claim 1, characterized in that: A rubber pad (306) is fixedly connected to the outer wall of the inner lining plate (305).

5. The rotary clamping device for hard chrome plating according to claim 1, characterized in that: The first fixed cylinder (301) and the second fixed cylinder (307) are both connected to the inner rod (302) by bolts.

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