A chromium plating jig for metal product production

Abstract

The utility model relates to the technical field of chromium plating fixture for metal product production, concretely is a kind of chromium plating fixture for metal product production, including sliding frame, sliding slot, at least two sliding blocks, mounting bracket and clamping assembly, clamping assembly is installed in the bottom of mounting bracket, the clamping assembly includes sliding column, support plate, lift plate and limiting component, metal product parts are fixed on fixture by clamping assembly, when part is clamped, pull sliding column, the movement of sliding column will drive lift plate to move, since part is fixed on lift plate, so the movement of lift plate will gradually immerse part in chromium plating liquid, avoid fixture body contact chromium plating liquid and be plated, chromium plating layer is only deposited on the surface of part, also avoid the oblique or impact type immersion caused by traditional manual holding fixture, ensure that chromium plating layer is evenly attached along the surface of part.

Description

Technical Field

[0001] This utility model relates to the technical field of chrome plating fixtures for metal product manufacturing, specifically a chrome plating fixture for metal product manufacturing. Background Technology

[0002] As is well known, a chrome plating fixture is a device used to hold metal products during the chrome plating process. When using a chrome plating fixture, the threaded rod is manually rotated. Because the thread direction on the surface of the threaded rod is opposite from the middle to both sides, the clamping plate clamps the metal product that needs to be chrome plated. Then, the connecting rod is held by hand, and the metal product clamped by the fixture head is completely immersed in the chrome plating solution in the chrome plating tank, so that the metal product can be chrome plated well.

[0003] Since the fixture and the part are placed together in the chromium plating solution, the surface of the fixture will be continuously covered with chromium plating layer during the long chromium plating process. As the number of chromium plating times increases, the chromium plating layer on the surface of the fixture gradually thickens. This not only changes the original size and shape of the fixture, affecting its clamping accuracy on the part, but also makes the surface of the fixture rough, reducing the stability of clamping, and causing problems such as displacement and loosening of the part during the chromium plating process. Summary of the Invention

[0004] Technical problems to be solved

[0005] In order to overcome the problem that existing chrome plating fixtures used in metal product manufacturing are easily damaged when they are chrome-plated together with the parts, this utility model provides a chrome plating fixture for metal product manufacturing that can be chrome-plated without being chrome-plated together with the parts.

[0006] Technical solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a chrome plating fixture for metal product manufacturing, comprising:

[0008] Sliding box;

[0009] A slide groove is formed at the top of the sliding frame;

[0010] At least two sliding blocks are slidably disposed on both sides of the sliding frame, and a slider is fixedly disposed on the top of each sliding block, the slider being slidably disposed with the groove.

[0011] Mounting brackets, the mounting brackets being fixedly disposed at the bottom of the sliding block, the mounting brackets being arranged in a matrix at the bottom of the sliding block; and

[0012] A clamping assembly is installed at the bottom of the mounting frame. The clamping assembly includes a sliding column, which is slidably disposed on the sliding block. A support plate is fixedly disposed at the bottom of the sliding column, and lifting plates are fixedly disposed around the support plate. A limit component is installed on the sliding column.

[0013] Preferably, a fixing plate is fixedly provided at the bottom of the mounting frame, a mounting base is fixedly provided at the bottom of the fixing plate, lifting columns corresponding to the number of lifting plates are slidably provided around the mounting base, a sliding shaft is slidably provided on the lifting column, a connecting block is fixedly provided at the top of the sliding shaft, a clamping plate is rotatably provided at the top of the connecting block, and the lifting plates are fixedly provided at the bottom of the connecting block.

[0014] Furthermore, a first bevel gear is rotatably disposed at the center of the fixed plate, and a second bevel gear is rotatably disposed at the bottom of the first bevel gear, with the first bevel gear meshing with the second bevel gear.

[0015] Furthermore, a cylinder is fixedly installed on the top of the first bevel gear, and a threaded cover is threaded on the cylinder. A connecting plate corresponding to the number of lifting columns is rotatably installed around the threaded cover. The connecting plate is rotatably installed with the lifting columns, and the cylinder is slidably installed with the sliding column, with the cylinder covering the outside of the sliding column.

[0016] In a further embodiment, the limiting component includes a limiting hole, a sliding groove is provided on the top of the fixing plate, a horizontal column is fixedly installed in the sliding groove, a moving block is slidably installed on the sliding groove, the moving block is slidably installed with the horizontal column, a limiting rod is fixedly installed on the side of the moving block, and the limiting rod is adapted to the limiting hole.

[0017] Based on the aforementioned scheme, one end of a first spring is fixedly installed inside the sliding groove, and the other end of the first spring is fixedly installed with the moving block.

[0018] Furthermore, based on the aforementioned solution, one end of a second spring is fixedly disposed on the connecting block, and the other end of the second spring is fixedly disposed with the clamping plate.

[0019] Furthermore, based on the aforementioned solution, a square plate is fixedly installed on the top of the slider, and threaded handles are provided on both sides of the square plate through threads, with the bottom of the threaded handles fitting against the top of the sliding frame.

[0020] Beneficial effects

[0021] This chrome plating fixture for metal product manufacturing uses a clamping assembly to fix metal parts onto the fixture. Once the part is clamped, pulling the sliding column causes the lifting plate to move. Since the part is fixed on the lifting plate, the movement of the lifting plate gradually immerses the part in the chrome plating solution, preventing the fixture body from being plated by contact with the chrome plating solution. The chrome plating layer is deposited only on the surface of the part. This also avoids the tilting or impact-induced immersion caused by traditional manual hand-held fixtures, ensuring that the chrome plating layer adheres evenly to the surface of the part. Attached Figure Description

[0022] Figure 1 This is a side view of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the threaded handle of this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the clamping plate of this utility model;

[0025] Figure 4 This utility model Figure 3 A magnified schematic diagram of the partial structure at point A in the middle;

[0026] Figure 5 This is a schematic diagram of the structure of the support plate of this utility model;

[0027] Figure 6 This is a schematic diagram of the limiting component of this utility model;

[0028] Figure 7 This is a schematic diagram of the clamping assembly of this utility model.

[0029] In the diagram: 1. Sliding frame; 2. Sliding groove; 3. Sliding block; 4. Sliding block; 5. Mounting bracket; 6. Clamping assembly; 7. Sliding column; 8. Support plate; 9. Lifting plate; 10. Limiting assembly; 11. Fixing plate; 12. Mounting seat; 13. Lifting column; 14. Sliding shaft; 15. Connecting block; 16. Clamping plate; 17. First bevel gear; 18. Second bevel gear; 19. Cylinder; 20. Threaded cover; 21. Connecting plate; 22. Limiting hole; 23. Sliding groove; 24. Horizontal column; 25. Moving block; 26. Limiting rod; 27. First spring; 28. Second spring; 29. ​​Square plate; 30. Threaded handle. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] See Figures 1-7 A chrome-plated fixture for the production of metal products includes a sliding frame 1, a sliding groove 2, at least two sliding blocks 3, a mounting bracket 5, and a clamping assembly 6.

[0032] The sliding frame 1 is welded from high-strength metal materials (such as steel). A through-type sliding groove 2 is opened at the top to provide a transverse sliding track for the sliding blocks 3 on both sides. The inner wall of the sliding groove 2 is precision machined to ensure that the sliding blocks 3 move smoothly without jamming. The sliding blocks 3 are symmetrically arranged on both sides of the sliding frame 1 and form a sliding pair with the sliding groove 2 through the bottom protrusion. They can slide towards each other or away from each other along the sliding groove 2. The sliding blocks 3 on both sides are connected by a linkage mechanism (such as a two-way screw or a synchronous belt). Rotating the operating component (such as a handwheel) can synchronously adjust the distance between the two to achieve rapid positioning of metal products of different widths. The mounting frame 5 is fixed to the bottom of the sliding blocks 3 and arranged in a matrix (such as multiple rows and columns) to provide a mounting base for the clamping assembly 6. Its structural design takes into account both strength and lightness, ensuring the overall rigidity of the fixture while reducing the weight of the chromium plating liquid.

[0033] The sliding column 7 passes vertically through the sliding block 3 and can slide up and down along the guide hole to adjust the vertical height of the clamping assembly 6. The top of the sliding column 7 is provided with a limiting component 10, which can fix the sliding column 7 at any height to meet the clamping height requirements of different specifications of workpieces. The limiting component 10 ensures that the sliding column 7 does not shift during the chrome plating process by mechanical locking, and avoids clamping loosening due to vibration.

[0034] The support plate 8 is fixed to the bottom of the sliding column 7 and connected to the lifting plate 9 around it to form a horizontal bearing platform. The lifting plate 9 rises and falls with the sliding column 7, driving the clamping structure below to move synchronously, realizing the overall adjustment of the clamping height. The mounting base 12 is fixed to the bottom of the mounting frame 5, allowing the lifting column 13 to slide along it. The top of the lifting column 13 is connected to the lifting plate 9, and the bottom is linked with the clamping plate 16 assembly to transmit the displacement of the lifting plate 9 to the clamping plate 16. The sliding shaft 14 passes through the top of the lifting column 13 and can slide in the horizontal direction, so that the clamping plate 16 has the ability to make lateral fine adjustments to adapt to the position deviation of the workpiece surface (such as uneven edges or local protrusions). At the same time, it works with the lifting plate 9 to immerse the parts in the plating solution.

[0035] The top of the connecting block 15 is rotatably connected to the clamping plate 16 via a pin, allowing the clamping plate 16 to swing around the pin (the rotation angle can be adaptively adjusted according to the shape of the workpiece). This design enables the clamping plate 16 to conform to the surface of irregular workpieces, ensuring maximum contact area. The inner side of the clamping plate 16 is covered with an elastic material (such as rubber or silicone), which compensates for surface roughness or curvature deviation through slight deformation when in contact with the workpiece, providing uniform clamping force while protecting the workpiece coating from damage.

[0036] First, refer to Figure 7In this embodiment, the central shaft of the first bevel gear 17 is rotatably mounted on the center of the fixed plate 11 via a deep groove ball bearing (such as type 608), with its axis coinciding with the axis of the sliding column 7. The tooth surface is carburized and quenched (hardness HRC58-62). The second bevel gear 18 is horizontally arranged below the first bevel gear 17 and meshes vertically with the first bevel gear 17. It is fixed inside the mounting base 12 via a shaft seat, and its tooth surface parameters match those of the first bevel gear 17. The transmission logic rotates the second bevel gear 18 (driven by a motor), causing the first bevel gear 17 to rotate synchronously. The latter transmits power to the lifting column 13 through the shaft system, realizing the synchronous lifting of multiple sets of lifting columns 13.

[0037] Then, refer to Figure 7 In this embodiment, a cylinder 19 (with a diameter that matches the inner diameter of the sliding column 7) is fixed to the top of the first bevel gear 17. External threads are machined on the surface of the cylinder 19. A threaded cover 20 is screwed onto the outside of the cylinder 19 (with an internal thread that matches the cylinder 19). Connecting plates 21 (the number of which is the same as the number of lifting columns 13) are evenly distributed around the outer periphery of the threaded cover 20. The connecting plates 21 are rotatably connected to the top of the lifting column 13 via pins. When the cylinder 19 is rotated clockwise, the threaded transmission causes the threaded cover 20 to descend along the axial direction of the cylinder 19. The connecting plates 21 push the lifting column 13 to move downwards synchronously, causing the clamping plate 16 to approach the metal product. When rotated counterclockwise, the clamping plate 16 is lifted. This design can achieve synchronous fine adjustment of multiple sets of clamping plates 16.

[0038] Secondly, see Figure 6 In this embodiment, the sliding groove 23 is opened on the top of the fixed plate 11 (surrounding the cylinder 19), the horizontal column 24 is fixed in the groove, and the moving block 25 is sleeved on the outside of the horizontal column 24 and can slide horizontally along the horizontal column 24. The moving block 25 has a rectangular block structure, and a limiting rod 26 is welded to the side. The other end is connected to the first spring 27 (compression spring). When the first spring 27 is pre-compressed, the limiting rod 26 is aligned with the limiting hole 22 on the side of the sliding column 7 (distributed along the height direction of the sliding column 7).

[0039] After the sliding column 7 is raised or lowered to the target position, the first spring 27 pushes the moving block 25, and the limiting rod 26 is inserted into the limiting hole 22 of the sliding column 7 to prevent the sliding column 7 from moving up and down. Manually pulling the moving block 25 compresses the first spring 27, and the limiting rod 26 disengages from the limiting hole 22, so the height of the sliding column 7 can be freely adjusted.

[0040] Again, see Figure 5In this embodiment, the top of the connecting block 15 is rotatably connected to the clamping plate 16 via a pin. One end of the second spring 28 (tension spring) is fixed to the side of the connecting block 15, and the other end is fixed to the back of the clamping plate 16. When the second spring 28 is in a pre-stretched state, the clamping plate 16 adheres to the surface of the workpiece with initial pressure. When the surface of the workpiece has curvature or unevenness, the clamping plate 16 rotates around the pin, and the second spring 28 is stretched and deformed, automatically adapting to the shape of the workpiece while maintaining continuous clamping force.

[0041] Finally, see Figure 2 In this embodiment, the square plate 29 is welded to the top of the slider 4. A threaded hole is opened on the top surface of the square plate 29, and the threaded handle 30 (T-shaped structure) is screwed into the threaded hole. An arc-shaped pressure block is machined at the bottom (matching the curvature of the top surface of the sliding frame 1). When the threaded handle 30 is rotated, the arc-shaped pressure block presses against the top surface of the sliding frame 1, and the sliding block 3 is locked by friction. The handle surface is knurled (roughness Ra≤6.3μm) to ensure anti-slip during operation.

[0042] Working principle:

[0043] When using this chrome-plated fixture for metal product manufacturing, first, according to the width of the metal product, rotate the threaded handles 30 on both sides of the square plate 29 to loosen the lock on the sliding block 3, push the sliding block 3 to move towards or away from each other along the sliding groove 2 at the top of the sliding frame 1, adjust it to a suitable clamping position for the workpiece, and then tighten the threaded handles 30 again to fix the sliding block 3.

[0044] Pull the moving block 25 of the limiting component 10 to compress the first spring 27, causing the limiting rod 26 to disengage from the limiting hole 22 of the sliding column 7, releasing the sliding column 7 from locking. Move the sliding column 7 up and down to adjust the support plate 8 and the lifting plate 9 to a suitable height. Release the moving block 25, and the first spring 27 will push the limiting rod 26 to re-insert into the limiting hole 22, locking the position of the sliding column 7.

[0045] The metal product is placed between the clamping plates 16. The threaded cover 20 on the top of the cylinder 19 is rotated. Through the meshing transmission of the first bevel gear 17 and the second bevel gear 18, the connecting plate 21 and the lifting column 13 are driven to move synchronously, so that the clamping plate 16 is close to the workpiece. The clamping plate 16 adapts to the surface of the workpiece through the elastic force of the second spring 28 to ensure clamping (the clamping force is uniform and avoids damage to the workpiece).

[0046] Move the sliding frame 1 as a whole above the chromium plating bath, and slowly lower the sliding frame 1 so that the lifting plate 9 can gradually immerse the workpiece in the chromium plating solution. Due to the design of the sliding column 7 and the lifting plate 9 of the clamping assembly 6, the workpiece is lifted by the lifting plate 9 and immersed in the plating solution, while the main structure of the fixture (such as the sliding frame 1, the mounting frame 5, etc.) does not come into contact with the chromium plating solution, thus preventing the fixture body from being plated.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A chrome-plating fixture for manufacturing metal products, characterized in that, include: Sliding box (1); Slide groove (2), the slide groove (2) is formed on the top of the sliding frame (1); At least two sliding blocks (3) are slidably disposed on both sides of the sliding frame (1), and a slider (4) is fixedly disposed on the top of the sliding block (3), and the slider (4) is slidably disposed with the groove (2); Mounting bracket (5), the mounting bracket (5) is fixedly disposed at the bottom of the sliding block (3), the mounting bracket (5) is arranged in a matrix at the bottom of the sliding block (3); and The clamping assembly (6) is installed at the bottom of the mounting frame (5). The clamping assembly (6) includes a sliding column (7), which is slidably disposed on the sliding block (3). A support plate (8) is fixedly disposed at the bottom of the sliding column (7), and lifting plates (9) are fixedly disposed around the support plate (8). A limit assembly (10) is installed on the sliding column (7).

2. The chrome-plating fixture for metal product manufacturing according to claim 1, characterized in that, The mounting bracket (5) is fixedly provided with a fixing plate (11) at the bottom, and a mounting base (12) is fixedly provided at the bottom of the fixing plate (11). Lifting columns (13) corresponding to the number of lifting plates (9) are slidably provided around the mounting base (12). A sliding shaft (14) is slidably provided on the lifting column (13). A connecting block (15) is fixedly provided on the top of the sliding shaft (14). A clamping plate (16) is rotatably provided on the top of the connecting block (15). The lifting plate (9) and the bottom of the connecting block (15) are fixedly provided.

3. The chrome-plating fixture for metal product manufacturing according to claim 2, characterized in that, A first bevel gear (17) is rotatably disposed at the center of the fixed plate (11), and a second bevel gear (18) is rotatably disposed at the bottom of the first bevel gear (17), and the first bevel gear (17) meshes with the second bevel gear (18).

4. The chrome-plating fixture for metal product manufacturing according to claim 3, characterized in that, A cylinder (19) is fixedly provided on the top of the first bevel gear (17). A threaded cover (20) is provided on the cylinder (19) by thread. A connecting plate (21) corresponding to the number of lifting columns (13) is rotatably provided around the threaded cover (20). The connecting plate (21) is rotatably provided with the lifting column (13). The cylinder (19) is slidably provided with the sliding column (7), and the cylinder (19) is wrapped around the sliding column (7).

5. The chrome-plating fixture for metal product manufacturing according to claim 2, characterized in that, The limiting component (10) includes a limiting hole (22). The top of the fixed plate (11) is provided with a sliding groove (23). A horizontal column (24) is fixedly arranged in the sliding groove (23). A moving block (25) is slidably arranged on the sliding groove (23). The moving block (25) is slidably arranged with the horizontal column (24). A limiting rod (26) is fixedly arranged on the side of the moving block (25). The limiting rod (26) is adapted to the limiting hole (22).

6. The chrome-plating fixture for metal product manufacturing according to claim 5, characterized in that, One end of the first spring (27) is fixedly disposed in the sliding groove (23), and the other end of the first spring (27) is fixedly disposed with the moving block (25).

7. The chrome-plating fixture for metal product manufacturing according to claim 2, characterized in that, One end of the second spring (28) is fixedly disposed on the connecting block (15), and the other end of the second spring (28) is fixedly disposed with the clamping plate (16).

8. The chrome-plating fixture for metal product manufacturing according to claim 1, characterized in that, A square plate (29) is fixedly installed on the top of the slider (4), and threaded handles (30) are provided on both sides of the square plate (29) by thread. The bottom of the threaded handles (30) is in contact with the top of the sliding frame (1).

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