Workpiece clamping mechanism for electroplating machining

Abstract

The utility model discloses a workpiece clamping mechanism for electroplating processing, which well solves the problems that a workpiece with a special shape is not easy to clamp due to the smooth surface of the workpiece when being clamped, the workpiece is easy to be damaged if being clamped by force, and the workpiece is easy to rotate and fall off when being clamped. The device comprises a mounting plate, the mounting plate is arranged in a U shape, two clamping plates are symmetrically arranged in the mounting plate, the clamping plates are arranged in an L shape, and through mutual cooperation of the mounting plate, the clamping plates, T-shaped blocks, shovel blocks, holding plates, vertical racks, arc-shaped pressing plates and the like, the arc-shaped pressing plates can be pressed to enable the two clamping plates to move towards the middle at the same time; a workpiece is shoveled from the bottom through the two shoveling blocks, and the four embracing plates can embrace the workpiece along with extrusion of the workpiece, so that the workpiece is conveniently picked up and fixed, the workpiece cannot fall off, and use is stable.

Description

Technical Field

[0001] This utility model belongs to the field of surface treatment technology, and specifically relates to a workpiece clamping mechanism for electroplating. Background Technology

[0002] Electroplating is a process of coating a metal or other material surface with a layer of metal to improve the appearance, corrosion resistance or other properties of an object. Before electroplating, the workpiece needs to be cleaned to remove surface dirt and grease, usually by chemical cleaning, mechanical grinding or pickling, and then immersed in the electroplating solution for electroplating treatment. Both cleaning and electroplating require tools to hold the workpiece.

[0003] Because the workpieces vary in shape and size, especially those with special shapes, they are difficult to clamp due to their smooth surfaces. Applying force can easily damage them, and the workpieces may rotate and fall during clamping, making them unstable to use.

[0004] Therefore, a workpiece clamping mechanism for electroplating is designed to overcome the aforementioned technical defects. Summary of the Invention

[0005] (1) Technical problems to be solved

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a clamping mechanism for workpieces used in electroplating. This clamping mechanism effectively solves the technical problems of workpieces with special shapes being difficult to clamp due to their smooth surfaces, easily being damaged by excessive force, and the workpieces rotating and falling off during clamping, resulting in unstable operation.

[0007] (2) Technical solution

[0008] To solve the above-mentioned technical problems, this utility model provides a workpiece clamping mechanism for electroplating, including a mounting plate, which is U-shaped. Two clamping plates, L-shaped, are symmetrically arranged inside the mounting plate. Shovel blocks are fixedly connected to opposite sides of the two clamping plates. Anti-drop mechanisms are provided at the bottom of the inner cavities of the two shovel blocks. Square holes are provided on the left and right sides of the mounting plate, and T-shaped rods are provided on the left and right sides of the mounting plate. One end of each T-shaped rod passes through a square hole and extends into the mounting plate, where it is fixedly connected to a clamping plate. A first spring is fitted on each side wall of the T-shaped rod. One end of the first spring is fixedly connected to the T-shaped rod, and the other end is fixedly connected to the mounting plate. A support hole is opened at the top of the mounting plate. A vertical rack is provided above the mounting plate. The bottom end of the vertical rack passes through the support hole and extends into the mounting plate, where an arc-shaped pressure plate is fixedly connected. An inclined plate is fixedly connected to the top of each of the two clamping plates. The arc-shaped pressure plate is located above the two inclined plates. A positioning mechanism is provided at the top of the mounting plate. The positioning mechanism meshes with the vertical rack. A handle is fixedly connected to the top of the vertical rack.

[0009] Preferably, the anti-fall mechanism includes a T-shaped block, which is slidably connected to the bottom of the inner cavity of the clamping plate. Several evenly distributed toothed blocks are fixedly connected to the front and rear side walls of the T-shaped block. First gears are movably connected to the bottom of the inner cavity of the clamping plate near the front and rear sides. The first gears mesh with the toothed blocks. Clamping plates are fixedly connected to the side walls of the two first gears on the same clamping plate. A third spring is fixedly connected between one side of the T-shaped block and the inner wall of the clamping plate.

[0010] Preferably, the positioning mechanism includes a fixing plate fixed to the top of the mounting plate. A second gear is movably connected to the front wall of the fixing plate near the left side, and the second gear meshes with a vertical rack. A square tube is fixedly connected to the front wall of the fixing plate near the middle, and a pull rod is sleeved inside the square tube. The pull rod is L-shaped, and both ends of the pull rod extend outside the square tube. An arc-shaped rack is fixedly connected to the left end of the pull rod, and the arc-shaped rack meshes with the second gear. A stop block is fixedly connected to the front wall of the fixing plate, and a second spring is fixedly connected between the pull rod and the stop block.

[0011] Furthermore, movable grooves are respectively opened at both ends of the arc-shaped pressure plate, and pulleys are installed between the front and rear inner walls of the two movable grooves, with the pulleys contacting the top of the inclined plate.

[0012] Furthermore, the bottom of each of the two clamping plates is symmetrically provided with arc-shaped grooves, and rollers are installed between the front and rear inner walls of the arc-shaped grooves, with the bottom of the rollers extending to the bottom of the clamping plates.

[0013] Furthermore, the vertical rack has slide bars fixedly connected to its front and rear side walls, and the arc-shaped pressure plate has slide grooves on its front and rear inner walls that match the slide bars.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This utility model, through the cooperation of mounting plates, clamping plates, T-shaped blocks, shovel blocks, gripping plates, vertical racks, and arc-shaped pressure plates, enables the two clamping plates to move simultaneously towards the center when the arc-shaped pressure plate is pressed. The two shovel blocks then scoop up the workpiece from the bottom, and as the workpiece is squeezed, the four gripping plates hold it in place. This not only makes it easy to pick up the workpiece but also to fix it in place, preventing it from falling and making it more stable in use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a bottom view of the overall structure of this utility model;

[0019] Figure 3 This is a partial structural diagram of the present invention;

[0020] Figure 4 This utility model Figure 2 Enlarged view of point A in the image;

[0021] Figure 5 This is a schematic diagram showing the distribution of the clamping plate positions in this utility model;

[0022] Figure 6 This is a bottom view of the clamping plate of this utility model;

[0023] Figure 7 This is a three-dimensional structural diagram of the clamping plate of this utility model;

[0024] Figure 8 This is a three-dimensional structural diagram of the arc-shaped plate of this utility model;

[0025] Figure 9 This is a three-dimensional structural diagram of the mounting plate of this utility model.

[0026] The markings in the attached diagram are as follows: 1. Mounting plate; 2. Clamping plate; 3. T-block; 4. Shovel block; 5. Inclined plate; 6. First gear; 7. Clamping plate; 8. Third spring; 9. Square hole; 10. T-bar; 11. First spring; 12. Arc-shaped pressure plate; 13. Vertical rack; 14. Handle; 15. Pulley; 16. Tooth block; 17. Support hole; 18. Fixing plate; 19. Second gear; 20. Arc-shaped rack; 21. Pull rod; 22. Square tube; 23. Second spring; 24. Stop block; 25. Arc-shaped groove; 26. Roller; 27. Movable groove. Detailed Implementation

[0027] This specific embodiment is a workpiece clamping mechanism for electroplating processing, and its structural schematic diagram is shown below. Figures 1-9 As shown, the device includes a mounting plate 1, which is U-shaped. Two clamping plates 2, each L-shaped, are symmetrically arranged inside the mounting plate 1. Shovel blocks 4 are fixedly connected to opposite sides of each clamping plate 2. Anti-fall mechanisms are installed at the bottom of the inner cavities of each of the two shovel blocks 4. Square holes 9 are opened on the left and right sides of the mounting plate 1. T-shaped rods 10 are installed on the left and right sides of the mounting plate 1, with one end of each T-shaped rod passing through the square hole 9 and extending into the mounting plate 1 to be fixedly connected to the clamping plate 2. First springs 11 are fitted onto the side walls of each of the two T-shaped rods 10. One end of the 11 is fixedly connected to the T-shaped rod 10, and the other end is fixedly connected to the mounting plate 1. The top of the mounting plate 1 has a support hole 17. A vertical rack 13 is provided above the mounting plate 1. The bottom end of the vertical rack 13 passes through the support hole 17 and extends into the mounting plate 1 to be fixedly connected to an arc-shaped pressure plate 12. The tops of the two clamping plates 2 are respectively fixedly connected to inclined plates 5. The arc-shaped pressure plate 12 is located above the two inclined plates 5. The top of the mounting plate 1 is provided with a positioning mechanism, which meshes with the vertical rack 13. The top of the vertical rack 13 is fixedly connected to a handle 14.

[0028] The length of the vertical rack 13 and the tie rod 21 in this technology can be set and installed according to actual needs. In addition, the vertical rack 13 is a common accessory on the market.

[0029] like Figure 5 As shown, the anti-fall mechanism includes a T-shaped block 3, which is slidably connected to the bottom of the inner cavity of the clamping plate 2. Several evenly distributed toothed blocks 16 are fixedly connected to the front and rear side walls of the T-shaped block 3. A first gear 6 is movably connected to the bottom of the inner cavity of the clamping plate 2 near the front and rear sides. The first gear 6 meshes with the toothed blocks 16. A clamping plate 7 is fixedly connected to the side wall of the two first gears 6 on the same clamping plate 2. A third spring 8 is fixedly connected between one side of the T-shaped block 3 and the inner wall of the clamping plate 2.

[0030] The third spring 8 has a small spring-off, which can prevent the workpiece from being pinched, but at the same time does not affect the push of the T-block 3 back to the initial position. The shovel block 4 in this technical solution is slightly tilted downward. In actual use, anti-slip pads or protective pads can be installed on the clamping surface of the T-block 3 to improve stability and avoid the workpiece being pinched.

[0031] like Figure 3As shown, the positioning mechanism includes a fixed plate 18, which is fixed to the top of the mounting plate 1. A second gear 19 is movably connected to the front wall of the fixed plate 18 near the left side. The second gear 19 meshes with a vertical rack 13. A square tube 22 is fixedly connected to the front wall of the fixed plate 18 near the middle. A pull rod 21 is sleeved inside the square tube 22. The pull rod 21 is L-shaped and extends to the outside of the square tube 22 at both ends. An arc-shaped rack 20 is fixedly connected to the left end of the pull rod 21. The arc-shaped rack 20 meshes with the second gear 19. A stop block 24 is fixedly connected to the front wall of the fixed plate 18. A second spring 23 is fixedly connected between the pull rod 21 and the stop block 24.

[0032] The positioning mechanism can fix the vertical rack 13 in any position, which prevents the two clamping plates 2 from becoming loose and serves as a limit. This allows for clamping of workpieces of different sizes, making it suitable for a wide range of applications.

[0033] The arc-shaped pressure plate 12 has movable grooves 27 at both ends. A pulley 15 is installed between the front and rear inner walls of the two movable grooves 27. The pulley 15 contacts the top of the inclined plate 5. The pulley 15 can reduce the friction between the arc-shaped pressure plate 12 and the inclined plate 5, making it easier to use.

[0034] In addition, the bottom of the two clamping plates 2 are symmetrically provided with arc-shaped grooves 25. Rollers 26 are installed between the front and rear inner walls of the arc-shaped grooves 25. The bottom of the rollers 26 extends to the bottom of the clamping plates 2. The rollers 26 make the two plates move more smoothly towards the middle, and there will be no phenomenon of friction with the bottom of the electroplating tank preventing them from moving towards the middle. This also reduces friction and improves the convenience of clamping. The bottom of the shovel block 4 is on the same horizontal line as the rollers 26.

[0035] The vertical rack 13 is fixedly connected to the front and rear side walls with slide bars respectively, and the arc-shaped pressure plate 12 has slide grooves on the front and rear inner walls that match the slide bars. The slide bars and slide grooves can prevent the vertical rack 13 from shaking in the support hole 17 during use, thus avoiding the phenomenon of the vertical rack 13 getting stuck due to shaking.

[0036] Working principle: When using this technical solution, first hold the handle 14. When needed, place the two clamping plates 2 inside the mounting plate 1 on both sides of the middle of the workpiece. Then pull the pull rod 21 to compress the second spring 23, causing the arc-shaped rack 20 to disengage from the second gear 19. Then, press the vertical rack 13 and the arc-shaped pressure plate 12 through the handle 14. When the vertical rack 13 descends, it will drive the second gear 19 to rotate. Simultaneously, when the arc-shaped pressure plate 12 descends, it will press the inclined plate 5 through the pulley 15. Through the inclined surface of the inclined plate 5, the inclined plate 5 will be pushed up. When the part is under pressure, it will drive the two clamping plates 2 and the shovel block 4 to move towards the center simultaneously, compressing the first spring 11. Then, the two shovel blocks 4 will insert into the bottom of the workpiece by moving towards the center at the same time, shoveling the workpiece and making the workpiece gradually contact the T-shaped block 3 through the inclined surface of the shovel block 4. While the handle 14 is pressed, the two clamping plates 2 continue to move towards the center and squeeze the workpiece. The clamped workpiece pushes the T-shaped block 3 to compress the third spring 8 through the reaction force, and at the same time drives the first gear 6 to rotate, causing the clamping plate 7 to swing towards the center to hold the workpiece. At this time, it is released. Pull rod 21, synchronously pushed to the left by the rebound force of second spring 23, moves arc-shaped rack 20, causing arc-shaped rack 20 to mesh with second gear 19. This fixes the position of vertical rack 13, preventing it from descending or rising further, thus acting as a limit switch. It also limits the positions of the two clamping plates 2. The scooping and clamping action of shovel block 4 effectively solves the problems of smooth workpieces being difficult to clamp and prone to falling. When it is necessary to lower the workpiece, first place mounting plate 1 on the workpiece placement area. On the table, pull the lever 21 again, causing the arc-shaped rack 20 to disengage from the second gear 19. Simultaneously, the rebound force of the first spring 11 pushes the T-shaped rod 10 to move the clamping plate 2 to both sides, causing the two shovel blocks 3 to disengage from the bottom of the workpiece. At the same time, the T-shaped blocks 3 lose their reaction force, and the third spring 8 pushes the T-shaped blocks 3 back to the initial position, causing the clamping plate 7 to swing outward. When the two clamping plates 2 move to both sides, they also cause the inclined plate 5 to move. Through the inclined surface of the inclined plate 5, the arc-shaped pressure plate 12 and the vertical rack 13 rise, achieving the purpose of putting the workpiece down.

[0037] All technical features in this embodiment can be freely combined according to actual needs.

[0038] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A workpiece clamping mechanism for electroplating, comprising a mounting plate (1), characterized in that: The mounting plate (1) is U-shaped, and two clamping plates (2) are symmetrically arranged inside the mounting plate (1). The clamping plates (2) are L-shaped, and shovel blocks (4) are fixedly connected to opposite sides of the two clamping plates (2). Anti-falling mechanisms are provided at the bottom of the inner cavities of the two shovel blocks (4). Square holes (9) are opened on the left and right sides of the mounting plate (1), and T-shaped rods (10) are provided on the left and right sides of the mounting plate (1). One end of the T-shaped rod (10) passes through the square hole (9) and extends into the mounting plate (1) to be fixedly connected to the clamping plate (2). A first spring (11) is sleeved on the side wall of the two T-shaped rods (10). One end is fixedly connected to the T-shaped rod (10), and the other end is fixedly connected to the mounting plate (1). The mounting plate (1) has a support hole (17) on the top. A vertical rack (13) is provided above the mounting plate (1). The bottom end of the vertical rack (13) passes through the support hole (17) and extends into the mounting plate (1) to be fixedly connected to an arc-shaped pressure plate (12). The tops of the two clamping plates (2) are respectively fixedly connected to inclined plates (5). The arc-shaped pressure plate (12) is located above the two inclined plates (5). The top of the mounting plate (1) is provided with a positioning mechanism. The positioning mechanism meshes with the vertical rack (13). The top of the vertical rack (13) is fixedly connected to a handle (14).

2. The workpiece clamping mechanism for electroplating processing according to claim 1, characterized in that: The anti-fall mechanism includes a T-shaped block (3), which is slidably connected to the bottom of the inner cavity of the clamping plate (2). Several evenly distributed toothed blocks (16) are fixedly connected to the front and rear side walls of the T-shaped block (3). A first gear (6) is movably connected to the bottom of the inner cavity of the clamping plate (2) near the front and rear sides. The first gear (6) meshes with the toothed blocks (16). A retaining plate (7) is fixedly connected to the side wall of the two first gears (6) on the same clamping plate (2). A third spring (8) is fixedly connected between one side of the T-shaped block (3) and the inner wall of the clamping plate (2).

3. The workpiece clamping mechanism for electroplating processing according to claim 1, characterized in that: The positioning mechanism includes a fixing plate (18), which is fixed to the top of the mounting plate (1). A second gear (19) is movably connected to the front wall of the fixing plate (18) near the left side. The second gear (19) meshes with a vertical rack (13). A square tube (22) is fixedly connected to the front wall of the fixing plate (18) near the middle. A pull rod (21) is sleeved inside the square tube (22). The pull rod (21) is L-shaped. Both ends of the pull rod (21) extend to the outside of the square tube (22). An arc-shaped rack (20) is fixedly connected to the left end of the pull rod (21). The arc-shaped rack (20) meshes with the second gear (19). A stop block (24) is fixedly connected to the front wall of the fixing plate (18). A second spring (23) is fixedly connected between the pull rod (21) and the stop block (24).

4. The workpiece clamping mechanism for electroplating processing according to claim 1, characterized in that: The arc-shaped pressure plate (12) has movable grooves (27) at both ends, and pulleys (15) are installed between the front and rear inner walls of the two movable grooves (27). The pulleys (15) are in contact with the top of the inclined plate (5).

5. The workpiece clamping mechanism for electroplating processing according to claim 1, characterized in that: The bottom of the two clamping plates (2) are respectively symmetrically provided with arc-shaped grooves (25), and rollers (26) are installed between the front and rear inner walls of the arc-shaped grooves (25). The bottom of the rollers (26) extends to the bottom of the clamping plates (2).

6. The workpiece clamping mechanism for electroplating processing according to claim 1, characterized in that: The vertical rack (13) has slide bars fixedly connected to its front and rear side walls respectively, and the arc-shaped pressure plate (12) has slide grooves on its front and rear inner walls that match the slide bars.

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