Rivet surface silver plating device

Abstract

The utility model provides a rivet surface silver plating device which is used for solving the problems that stable clamping force cannot be provided for a rivet, and the fixing position of the rivet cannot be conveniently adjusted. A rivet surface silver plating device comprises a clamp plate, a plurality of fixing areas are fixed in the clamp plate, a plurality of fixing clamps are evenly distributed and fixed to the same sides of the fixing areas, movable plates are arranged in the fixing areas, the movable plates are connected through a plurality of connecting rods, one ends of the connecting rods are connected through a connecting plate, and the other ends of the connecting rods are connected through a connecting plate. A plurality of movable clamps are fixed to the side, close to the fixed clamp, of the movable plate, the fixed clamp and the movable clamps each comprise a support, the supports are rotationally connected with pulleys through friction shaft sleeves, and arc-shaped grooves are formed in the circumferential directions of the pulleys. A rivet is clamped through the pulley grooves of the movable clamp and the fixed clamp, stable clamping force is provided, scratching of a silver plating area is effectively avoided through the arc-shaped grooves in the pulleys, and silver plating quality is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to silver plating technical field especially points to a rivet surface silver plating device. BACKGROUND

[0002] In modern industrial production, rivets, as an important connecting piece, are widely used in many fields such as aerospace, automobile manufacturing, electronic equipment, etc. With the continuous development of science and technology and the increasing demand for product quality, the surface treatment process of rivets has become increasingly important. Among them, the silver plating treatment of the surface of the rivet has attracted widespread attention and application due to its good electrical conductivity, thermal conductivity, oxidation resistance and aesthetic appearance.

[0003] In the silver plating process, the traditional silver plating device usually uses clamps to fix the rivets. This clamping method often cannot provide stable clamping force, so that the rivets may shake or displace due to unstable clamping, resulting in uneven thickness of the silver plating layer and affecting the silver plating quality. In addition, during the adjustment of the silver plating length of the rivet, the rivet on the moving clamp is easy to produce a large friction force, which not only wears the surface of the rivet, but also causes scratches on the silver plating area of the rivet, damaging the integrity of the silver plating layer, and further reducing the performance and appearance quality of the rivet. SUMMARY

[0004] The utility model provides a kind of rivet surface silver plating device, solve the problem that rivet cannot be provided with stable clamping force and rivet cannot be conveniently adjusted fixed position in prior art.

[0005] The technical scheme of the utility model is realized as follows: a kind of rivet surface silver plating device, including the fixture plate of frame type, multiple parallel fixed rods are fixed in the fixture plate, the fixed rod divides the fixture plate into multiple fixed areas, multiple fixed clamps are uniformly distributed on the same side of fixed area, movable plate is equipped in the fixed area, multiple connecting rods are connected between each movable plate, one end of connecting rod is connected with each other by connecting plate, the side of connecting plate away from connecting rod is fixed with telescopic rod, the other side is connected with support plate, the side of movable plate close to fixed clamp is fixed with multiple movable clamps, movable clamp and fixed clamp one to one correspondence, fixed clamp and movable clamp all include support, support is all connected with pulley by friction shaft sleeve rotation, the axis of pulley is parallel to fixed rod, the circumferential direction of pulley is equipped with arc-shaped recess, silver plating bin is equipped below the fixture plate, slide rail is equipped above the fixture plate, slide rail is slidably connected with lifting workbench, the lower side of the end of slide rail away from fixture plate is equipped with conveying device.

[0006] Furthermore, the lifting worktable includes a fixed plate, the bottom surface of which is connected to a lifting plate via multiple telescopic support rods. Multiple fixing holes are provided on the lifting plate, each corresponding to a fixing fixture. A conical cylinder is fixed to the bottom surface of the fixed plate, communicating with the fixing holes. A suction cup rod passes through the fixing holes, and a gong-shaped silicone suction cup is fixed to the bottom end of the suction cup rod. The concave surface of the silicone suction cup faces the fixture plate, and the top surface of the silicone suction cup abuts against the large end of the conical cylinder. A baffle is fixed to the upper end of the suction cup rod, and a spring is fitted onto the suction cup rod between the baffle and the fixed plate. Multiple support plates are provided on both sides of the fixed plate, and a connecting rod is provided between the support plates. Multiple cams are fixed to the connecting rod, and the cams abut against the top of the baffle. The connecting rod is driven by a drive device. The silicone suction cup is made of soft material and will not damage the rivet surface, avoiding scratches or deformation and ensuring the quality of the silver plating.

[0007] Furthermore, the driving device includes a limiting plate fixed to the support plate, a driving rod passing through the limiting plate, and worm gears fixed to the end of the connecting rod near the driving rod. Multiple worm sleeves are sleeved and fixed on the driving rod, and the worm sleeves mesh with the worm gears one by one. The driving rod is driven by a motor. Because the worm gears have self-locking properties, no additional locking mechanism or device is needed to maintain the stable position of the driving rod and the cam, thus reducing the assembly difficulty and maintenance cost of the system.

[0008] Furthermore, the axis of the large end of the cam coincides with the axis of the connecting rod, and the small end of the cam is provided with a fixed plane. The stable contact between the cam and the baffle reduces wear caused by friction and impact, and improves the precision and accuracy of the transmission.

[0009] Furthermore, a lifting rod is fixed to the bottom surface of the silver plating chamber. The telescopic rod is connected to a rotating mechanism, which causes the clamping plate to rotate along the axis of the telescopic rod. A rotating shaft is fixed to the end of the clamping plate away from the telescopic rod, and the rotating shaft is rotatably connected to the support plate. The rivet, after being flipped, is raised and lowered by the lifting worktable. Simultaneously, the lifting rod adjusts the position of the silver plating chamber, making the rivet silver plating process more flexible and adaptable to rivets of different sizes and shapes, thus improving the equipment's versatility and applicability.

[0010] Furthermore, the conveying device includes a first conveyor belt and a second conveyor belt. The second conveyor belt is close to the clamping plate, and its conveying speed is greater than that of the first conveyor belt. The first conveyor belt is higher than the second conveyor belt, and the first and second conveyor belts are connected by an inclined discharge chute. Both the first and second conveyor belts include multiple parallel conveyor chains. Automated conveying and clamping reduces manual intervention, improves production efficiency, and simultaneously reduces the labor intensity and safety risks for operators.

[0011] The beneficial effects that this technical solution can produce.

[0012] This invention uses pulley grooves on movable and fixed clamps to hold rivets, providing stable clamping force and reducing friction between the rivets and clamps during lifting and lowering. This effectively prevents scratches on the silver plating area and ensures the quality of the silver plating. By setting multiple fixed and movable clamps, multiple rivet-fixing stations are formed, allowing for the simultaneous processing of multiple rivets, greatly improving the efficiency of the silver plating process and meeting the needs of mass production. Using a telescopic rod as a power source, all movable clamps are driven to move synchronously through a connecting plate, connecting rod, and movable plate, ensuring that rivets at each station are stably and consistently fixed, improving the consistency and reliability of the silver plating process. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 A three-dimensional structural diagram showing the silver plating chamber descending and the lifting plate rising.

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the fixture plate;

[0017] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle;

[0018] Figure 5 A cross-sectional three-dimensional structural diagram of the clamping plate and the lifting worktable;

[0019] Figure 6 for Figure 5 A magnified view of a portion of point B in the middle;

[0020] Figure 7 This is a schematic diagram of the exploded structure at the suction cup rod.

[0021] The components are: 1. Fixture plate, 2. Fixed rod, 3. Fixed fixture, 4. Movable plate, 5. Connecting rod, 6. Connecting plate, 7. Telescopic rod, 8. Movable fixture, 9. Lifting worktable, 10. Groove, 11. Silver plating chamber, 12. Friction bushing, 13. Fixed plate, 14. Lifting plate, 15. Conical cylinder, 16. Suction cup rod, 17. Baffle, 18. Connecting rod, 19. Cam, 20. Drive rod, 21. Worm gear, 22. Worm cylinder, 23. Fixed plane, 24. Lifting rod, 25. Rotating mechanism, 26. First conveyor belt, 27. Second conveyor belt, 28. Discharge trough plate, 29. Positioning plate, 30. Support plate. Detailed Implementation

[0022] 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.

[0023] like Figures 1-4 As shown, this utility model provides a silver plating device for rivet surfaces, including a frame-shaped clamping plate 1. Multiple parallel fixing rods 2 are fixed inside the clamping plate 1, dividing the clamping plate into multiple fixing areas. Multiple fixing clamps 3 are evenly distributed and fixed on the same side of each fixing area. Each fixing area is provided with a movable plate 4, which are connected to each other by multiple connecting rods 5. One end of each connecting rod 5 is connected to the others by a connecting plate 6. A telescopic rod 7 is fixed to the side of the connecting plate 6 away from the connecting rod 5, and a support plate 3 is connected to the other side. 0. Multiple movable clamps 8 are fixed on the side of the movable plate 4 near the fixed clamp 3. Each movable clamp 8 corresponds to a fixed clamp 3. Both the fixed clamp 3 and the movable clamps 8 include a bracket. Each bracket is rotatably connected to a pulley via a friction bushing 12. The axis of the pulley is parallel to the fixed rod 2. Each pulley has an arc-shaped groove 10 around its circumference. A silver plating chamber 11 is provided below the clamp plate 1. A slide rail is provided above the clamp plate 1. A lifting worktable 9 is slidably connected to the slide rail. A conveying device is provided below the end of the slide rail away from the clamp plate 1. The telescopic rod 7 is an existing hydraulic or pneumatic telescopic device. The slide rail connection is existing technology. An existing metal silver plating device, such as chemical silver plating or electroplating silver plating, can be installed in the silver plating chamber 11. The friction bushing 12 is an existing rubber sleeve or a metal ring with a friction surface. By setting the friction bushing 12, the friction force of the bracket on the pulley can be increased, preventing the rivet from sliding or shifting due to the easy rotation of the pulley. The support plate 30 is fixed to the ground to provide support for the clamp plate 1 and keep the clamp plate 1 stable.

[0024] During operation, the lifting worktable 9 removes the pre-treated rivets from the conveying device. The lifting worktable 9 then places the rivets between the movable clamp 8 and the fixed clamp 3. The telescopic rod 7, through the connecting plate 6, connecting rod 5, and movable plate 4, moves the movable clamp 8 closer to the fixed clamp 3. The telescopic rod 7 drives the movable clamp 8 to move towards the fixed clamp 3, and the rivets are fixed by being clamped by the pulley grooves 10 of both. The lifting worktable 9 provides thrust to the rivets, moving them closer to or further away from the silver plating chamber 11, thereby adjusting the length of the rivets within the silver plating chamber 11 and adjusting the silver plating area. Multiple fixed clamps 3 and multiple movable clamps 8 can form multiple rivet fixing stations, achieving batch silver plating of rivets. During the silver plating process, the curved grooves 10 on the pulleys of the lifting worktable 9 reduce friction when the lifting worktable 9 moves the rivets up and down, reducing scratches on the silver plating area. During the rivet clamping process, a telescopic rod 7 acts as a power source to drive the connecting rod 5 and the movable plate 4 to drive the movable fixture 8, so that the multi-station clamping is synchronized and the rivets can be stably fixed in batches.

[0025] like Figure 1 , 2 As shown in Figure 5, the lifting worktable 9 includes a fixed plate 13. The bottom surface of the fixed plate 13 is connected to a lifting plate 14 via multiple telescopic support rods. Multiple fixing holes are provided on the lifting plate 14, and the fixing holes correspond one-to-one with the fixing clamps 3. A cone 15 is fixed on the bottom surface of the fixed plate 13, and the cone 15 is connected to the fixing holes. A suction cup rod 16 is provided inside the fixing holes. A gong-shaped silicone suction cup is fixed at the bottom end of the suction cup rod 16. The arc-shaped concave surface of the silicone suction cup faces the clamp plate 1, and the top surface of the silicone suction cup can abut against the large end of the cone 15. A baffle 17 is fixed at the upper end of the suction cup rod 16. A spring is sleeved on the suction cup rod 16 between the baffle 17 and the fixed plate 13. Multiple support plates are provided on both sides of the fixed plate 13. A connecting rod 18 is provided between the support plates. Multiple cams 19 are fixed on the connecting rod 18. The cams 19 abut against the top of the baffle 17. The connecting rod 18 is driven by a driving device.

[0026] During use, the drive unit rotates the cam 19 via the connecting rod 18, causing the cam 19 to apply a downward thrust to the baffle 17. The baffle 17 compresses the spring, and simultaneously, the telescopic support rod moves the silicone suction cup closer to the rivet on the conveying device. At this time, the silicone suction cup is in a state ready to fix the rivet. The concave surface of the gong-shaped silicone suction cup faces the clamp plate 1, and with the support of the cone 15, the suction force of the silicone suction cup can be improved. When the lifting plate 14 moves downward and the silicone suction cup abuts against the rivet, the connecting rod 18 is rotated again, causing the cam 19 to release the baffle 17. The baffle 17 will move upward due to the restoring force of the spring. At this time, the baffle 17 drives the silicone suction cup to retract via the suction cup rod 16. The silicone suction cup forms a vacuum to attract and fix the rivet, thus firmly fixing the rivet and ensuring that the rivet will not slip or fall off during the silver plating process. The cone 15 restricts the movement of the silicone suction cups. Multiple cams 19 are fixed on the connecting rod 18. The cams 19 abut against the top of the baffle 17. The connecting rod 18 is driven by the drive device to rotate the cams 19, which can drive multiple silicone suction cups to perform adsorption operations at the same time. This reduces the number of drive devices required, lowers costs and reduces maintenance difficulty.

[0027] like Figure 2 , 5 As shown, the driving device includes a limiting plate fixed to a support plate, a driving rod 20 passing through the limiting plate, and worm gears 21 fixed to one end of each connecting rod 18 near the driving rod 20. Multiple worm cylinders 22 are sleeved and fixed on the driving rod 20, and each worm cylinder 22 meshes with a worm gear 21. The driving rod 20 is driven by a motor. The motor can be a conventional stepper motor or servo motor. The self-locking property of the worm gears 21 and worms allows the driving rod 20 to be fixed, thereby fixing the cam 19 and reducing the problem of the suction cup falling off due to vibration and displacement of the cam 19. Furthermore, multiple driving rods 20 can be driven simultaneously by a single driving source, achieving synchronous control of multiple components and significantly reducing the number of motors and operating costs, thus improving resource utilization efficiency.

[0028] like Figures 5-7 As shown, the axis of the large end of the cam 19 coincides with the axis of the connecting rod 18, and the small end of the cam 19 is provided with a fixed plane 23. By aligning the large end of the cam 19 with the axis of the connecting rod 18, the small end of the cam 19 serves as the driving end. When the fixed plane 23 of the small end of the cam 19 rotates to a point where it is tightly abutting against the baffle 17, a stable support is formed, effectively preventing the cam 19 from separating from or loosening from the baffle 17 due to vibration or external force.

[0029] like Figure 1 , 2As shown, a lifting rod 24 is fixed to the bottom surface of the silver plating chamber 11. The telescopic rod 7 is connected to a rotating mechanism 25. The rotating mechanism 25 causes the clamping plate 1 to rotate along the axis of the telescopic rod 7. A rotating shaft is fixed to the end of the clamping plate 1 away from the telescopic rod 7, and the rotating shaft is rotatably connected to the support plate 30. The rotating mechanism 25 is an existing stepper motor or servo motor, etc. During use, the lifting rod 24 drives the silver plating chamber to descend, while the telescopic support rod drives the lifting plate 14 to rise, increasing the space above and below the clamping plate 1. Then, the rotating mechanism 25 can drive the clamping plate 1 to flip, and then the clamping plate 1 drives the fixed rivet to flip. The flipped rivet can be lifted and lowered by the lifting worktable 9, while adjusting the position of the silver plating chamber 11 to connect the silver plating areas at both ends of the rivet, achieving the effect of fully silver plating the rivet, avoiding uneven or missed silver plating, and improving the quality and consistency of silver plating.

[0030] like Figure 1 As shown, the conveying device includes a first conveyor belt 26 and a second conveyor belt 27. The second conveyor belt 27 is close to the clamping plate 1, and its conveying speed is greater than that of the first conveyor belt 26. The first conveyor belt 26 is higher than the second conveyor belt 27. The first conveyor belt 26 and the second conveyor belt 27 are connected by an inclined unloading chute 28. Both the first conveyor belt 26 and the second conveyor belt 27 include multiple parallel conveyor chains. During operation, the large end of the rivet is placed above the conveyor chains, and the small end is placed between the conveyor chains. Gravity allows the rivet to always maintain its large end facing upwards and close to the lifting worktable 9. This helps the lifting worktable 9 to accurately and stably clamp the rivets, improving the positioning accuracy and efficiency of automated production. The differential speed setting of the first conveyor belt 26 and the second conveyor belt 27 allows the rivets to naturally form a gap when transferring from the first conveyor belt 26 to the second conveyor belt 27. This differential speed design simplifies the control of rivet spacing, eliminates the need for additional separating devices, and improves the flexibility and efficiency of the production line. The inclined feed chute 28 allows rivets to smoothly transition from the first conveyor belt 26 to the second conveyor belt 27 using their own weight. This not only reduces the complexity and cost of mechanical parts but also effectively prevents rivets from falling off during the transition, ensuring the continuity and stability of production. A third conveyor belt can be installed at the front end of the second conveyor belt 27. The third conveyor belt has a higher conveying speed than the second conveyor belt 27, allowing rivets to be arranged compactly onto the second conveyor belt 27 in sequence, reducing the time spent manually arranging rivets.

[0031] like Figure 1As shown, multiple positioning plates 29 are fixed on the conveyor chain, and the spacing between adjacent positioning plates 29 is the same as the width of the fixed area. By setting the positioning plates 29, the rivets entering the second conveyor belt 27 from the unloading chute can be limited, preventing differences in rivet weight from causing different positions upon entering the second conveyor belt 27, thus preventing them from being picked up in batches by the lifting worktable 9. The positioning plates 29 also avoid uneven or missed silver plating caused by rivet positional misalignment, ensuring the consistency and reliability of the silver plating quality.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., 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 rivet surface silvering apparatus characterized by: The utility model provides a kind of silver-plated warehouse and lifting workbench, including frame type clamp plate (1), multiple parallel fixed rods (2) are fixed in clamp plate, fixed rod (2) divides clamp plate into multiple fixed areas, multiple fixed clamps (3) are uniformly distributed on the same side of fixed area, movable plate (4) is equipped in fixed area, multiple connecting rods (5) are connected between each movable plate (4), one end of connecting rod (5) is connected each other by connecting plate (6), connecting plate (6) is fixed with telescopic rod (7) on the side away from connecting rod (5), and the other side is connected with support plate (30), movable plate (4) is fixed with multiple movable clamps (8) on the side close to fixed clamp (3), movable clamp (8) and fixed clamp (3) one-to-one correspondence, and fixed clamp (3) and movable clamp (8) all include support, support is rotatably connected with pulley by friction shaft sleeve (12), the axis of pulley is parallel to fixed rod (2), and the circumferential direction of pulley is equipped with arc groove (10), the bottom of silver-plated warehouse (11) is equipped with lifting rod (24), and the telescopic rod (7) is connected with rotating mechanism (25), and rotating mechanism (25) makes clamp plate (1) rotate along the axis of telescopic rod (7), and the end away from telescopic rod (7) of clamp plate (1) is fixed with rotating shaft, and rotating shaft is rotatably connected with support plate (30).

2. A rivet surface silvering apparatus as defined in claim 1, wherein: The lifting workbench (9) includes a fixed plate (13), a lifting plate (14) is connected to the bottom surface of the fixed plate (13) by a plurality of telescopic support rods, a plurality of fixing holes are provided on the lifting plate (14), the fixing holes can correspond to the fixed clamps (3) one by one, a tapered cylinder (15) is fixed to the bottom surface of the fixed plate (13), the tapered cylinder (15) is in communication with the fixing holes, a suction rod (16) is provided in the fixing holes, a bell-shaped silica gel suction pad is fixed to the bottom end of the suction rod (16), the arc concave surface of the silica gel suction pad faces the clamp plate (1), the top surface of the silica gel suction pad can abut against the large end of the tapered cylinder (15), a baffle (17) is fixed to the upper end of the suction rod (16), a spring is sleeved on the suction rod (16) between the baffle (17) and the fixed plate (13), a plurality of support plates are provided on both sides of the fixed plate (13), a connecting rod (18) is provided between the support plates, a plurality of cams (19) are fixed to the connecting rod (18), the top end of the baffle (17) abuts against the cams (19), and the connecting rod (18) is driven by a driving device.

3. A rivet surface silvering apparatus as defined in claim 2, wherein: The driving device includes a limiting plate fixed to the support plates, a driving rod (20) is provided through the limiting plate, a worm wheel (21) is fixed to one end of the connecting rod (18) close to the driving rod (20), a plurality of worm cylinder (22) are sleeved on the driving rod (20), the worm cylinder (22) is engaged with the worm wheel (21) one by one, and the driving rod (20) is driven by a motor.

4. A rivet surface silvering apparatus as defined in claim 2, wherein: The axis of the large end of the cam (19) coincides with the axis of the connecting rod (18), and the small end of the cam (19) is provided with a fixed plane (23).

5. A rivet surface silvering apparatus as defined in claim 1, wherein: The bottom surface of the silver-plated warehouse (11) is fixed with a lifting rod (24), the telescopic rod (7) is connected with a rotating mechanism (25), the rotating mechanism (25) rotates the clamp plate (1) along the axis of the telescopic rod (7), a rotating shaft is fixed to the end away from the telescopic rod (7) of the clamp plate (1), and the rotating shaft is rotatably connected with the support plate (30).

6. A rivet surface silvering apparatus as defined in claim 1, wherein: The conveying device comprises a first conveying belt (26) and a second conveying belt (27), the second conveying belt (27) is close to the clamp plate (1), the conveying speed of the second conveying belt (27) is greater than that of the first conveying belt (26), the first conveying belt (26) is higher than the second conveying belt (27), and the first conveying belt (26) and the second conveying belt (27) are connected through an inclined blank chute plate (28).

7. A rivet surface silvering apparatus as defined in claim 6, wherein: The conveying chain is fixed with a plurality of positioning plates (29), and the spacing between adjacent positioning plates (29) is the same as the width of the fixed area.

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