Hanger for electroplating
By introducing a gear and rack drive and a locking mechanism for insert holes into the electroplating rack, the problems of cumbersome operation and easy corrosion of threaded connections during workpiece replacement in traditional electroplating racks are solved, realizing efficient and flexible replacement and maintenance of loads and reducing maintenance costs.
Patent Information
- Application Number
- CN202522364569.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-07
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-07
AI Technical Summary
Traditional electroplating racks are cumbersome to operate when changing workpiece specifications, and the threaded connections are prone to corrosion and jamming, making maintenance difficult and increasing maintenance time and costs.
A locking mechanism is adopted, which uses gear and rack transmission to achieve detachable connection, avoiding direct exposure of threaded connection to electroplating solution. Locking and loosening are achieved by the cooperation of insert and socket, and the torsion spring provides automatic reset function, simplifying operation.
It improves electroplating production efficiency, reduces the labor intensity and operation time of maintenance personnel, enhances the flexibility and reliability of the load, and reduces maintenance costs.
Smart Images
Figure CN224930681U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electroplating equipment, specifically to electroplating racks. Background Technology
[0002] Electroplating racks are key tooling equipment in the electroplating process, mainly used to fix and support the workpieces to be electroplated, ensuring good contact between them and the electrodes in the electroplating tank and guaranteeing a uniform distribution of the electroplated layer. Electroplating racks typically consist of a frame, hooks, and mounting components for attaching the workpieces. Their structural design and reliability directly affect electroplating efficiency and product quality.
[0003] In traditional electroplating racks, the loads are mostly installed on the support beams by welding. Although this method is simple in structure, it lacks flexibility in actual use: when the workpiece specifications are changed, the entire rack needs to be replaced or the rack needs to be manually adjusted, which is cumbersome and has low production efficiency.
[0004] Therefore, existing technologies employ detachable connection methods, using threaded connections to fix the load to the support beam, offering high flexibility. However, this method still has drawbacks: threaded connections are prone to corrosion and jamming in electroplating solutions. When maintenance personnel attempt to disassemble such corroded and jammed threaded connections, they typically need to apply extremely high torque, which can easily lead to stripped threads, broken bolts, or damage to the threaded holes on the support beam. Once damaged, repair work is very troublesome, often requiring re-tapping or welding repair of the support beam, significantly increasing maintenance time and costs. Utility Model Content
[0005] The purpose of this utility model is to provide an electroplating fixture to solve the above-mentioned problems.
[0006] This utility model achieves the above-mentioned objective through the following technical solution: an electroplating hanger, including a frame and a hook set on the top of the frame, a plurality of support beams are provided inside the frame, and a plurality of loading components for loading workpieces are provided on the support beams, the loading component including a rod and hooks set at both ends of the rod, and a U-shaped deformable part is provided in the middle of the rod. The loading component is detachably mounted on the support beam via a locking mechanism. The locking mechanism includes a pressure cap, a rod, and a transmission assembly disposed inside the rod. The rod has a cavity inside. The transmission assembly includes a gear rotatably connected inside the cavity and two racks meshing with the gear on both sides. Each rack has a radially movable insert connected to its end away from the gear. The side wall of the rod has a through groove for the insert to pass through. A rotating rod is fixedly connected to the center of the gear. The rotating rod passes through the bottom wall of the rod and is connected to a pinching strip. The support beam has multiple mounting holes along its length. The rod is used to pass through the deformable part and be inserted into the mounting hole. The inner wall of the mounting hole has two insertion holes for inserting the insert. When the insert is inserted into the insertion hole, the clamping cap can press the deformable part onto the support beam.
[0007] As a further feature of this invention, a torsion spring is fitted on the rotating rod. One end of the torsion spring is fixedly connected to the rotating rod, and the other end is fixedly connected to the inner wall of the cavity. The torsion spring is used to drive the rotating rod to reset so that the insert can pass through the slot.
[0008] As a further feature of this invention, a slide rail is provided inside the cavity, and the rack is slidably connected inside the slide rail.
[0009] As a further feature of this invention, each of the support beams is provided with a support frame at its bottom for supporting the load.
[0010] As a further feature of this invention, the support beam is detachably installed inside the frame.
[0011] As a further feature of this utility model, connecting sections are provided on both sides of the support beam. The connecting sections are fixed inside the frame by connecting components. The connecting components include bolts for sequentially penetrating the side wall of the frame and the connecting sections, and nuts are threaded onto the bolts.
[0012] Compared with the prior art, the beneficial effects of this utility model are: This utility model, by setting up a locking mechanism, with the core locking and unlocking functions achieved through gear and rack transmission, effectively avoids direct exposure to the harsh environment of electroplating solution, minimizing the impact of the electroplating solution. Furthermore, the connection is achieved solely through the cooperation of the insert and the socket, thus preventing corrosion and jamming. Disassembly is simple; unlocking requires only a gentle reverse rotation of the gripping strip, eliminating the need for wrenches or other tools to apply significant torque. This makes operation labor-saving and quick, greatly reducing the labor intensity and operation time for maintenance personnel, improving production and maintenance efficiency. It is also flexible in assembly and disassembly, facilitating the replacement of components, and has good applicability. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Enlarged structural diagram at point A; Figure 3 This is a schematic diagram of the loading component in this utility model; Figure 4 This is a schematic diagram of the locking mechanism in this utility model; Figure 5 This is a half-sectional view of the locking mechanism in this utility model; Figure 6 This is a schematic diagram of the transmission component in this utility model; Figure 7 This is a schematic diagram of the supporting beam in this utility model; Figure 8 for Figure 7 A magnified structural diagram at point B in the middle.
[0014] Reference numerals: 1. Frame; 2. Hook; 3. Support beam; 4. Loading component; 5. Rod; 6. Hook; 7. Deformable part; 8. Pressure cap; 9. Rod body; 10. Gear; 11. Rack; 12. Insert bar; 13. Rotating rod; 14. Grip bar; 15. Mounting hole; 16. Insertion hole; 17. Torsion spring; 18. Support frame; 19. Connecting section; 20. Bolt; 21. Nut. Detailed Implementation
[0015] 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.
[0016] Please see Figure 1-8As shown, the electroplating hanger includes a frame 1 and hooks 2 on the top of the frame 1. Several support beams 3 are arranged inside the frame 1, and multiple loading components 4 for loading workpieces are arranged on the support beams 3. Support frames 18 are provided at the bottom of each support beam 3 to support the loading components 4, thus providing additional support force to the loading components 4, preventing bending deformation when suspending heavy workpieces, and extending the service life of the loading components 4. Each loading component 4 includes a rod 5 and hooks 6 at both ends of the rod 5. A U-shaped deformable part 7 is provided in the middle of the rod 5. The loading component 4 is detachably mounted on the support beams 3 by a locking mechanism. The locking mechanism includes a pressure cap 8, a rod body 9, and a transmission assembly inside the rod body 9. A cavity is formed inside the rod body 9. The transmission assembly includes a gear 10 rotatably connected inside the cavity and two racks 11 meshing with each other on both sides of the gear 10. Radially movable inserts 12 are connected to the ends of the racks 11 furthest from the gear 10. A through slot is provided on the side wall of the rod 9 for the inserts 12 to pass through. A rotating rod 13 is fixedly connected to the center of the gear 10, and the rotating rod 13 passes through the bottom wall of the rod 9 and is connected to a gripping strip 14. Multiple mounting holes 15 are provided along the length of the support beam 3. The rod 9 is used to pass through the deformable part 7 and insert into the mounting holes 15. Two insertion holes 16 are provided on the inner side wall of the mounting holes 15 for inserting the inserts 12. When the inserts 12 are inserted into the insertion holes 16, the clamping cap 8 can press the deformable part 7 against the support beam 3. Therefore, during the installation of the loading component 4, it is possible to... First, the deformable part 7 is fitted onto the rod body 9, and the lower end of the rod body 9 is inserted into the mounting hole 15. Then, the gripping bar 14 is rotated, which drives the gear 10 to rotate through the rotating rod 13. The gear 10 can drive the racks 11 on both sides to move in opposite directions, making radial linear motion. The racks 11 can push the insert 12 to extend radially from the through slot and finally insert it into the insertion hole 16. At this time, the clamping cap 8 can press the deformable part 7 tightly onto the surface of the support beam 3, thereby achieving rigid fixation of the entire loading component 4. When disassembling the loading component 4, the gripping bar 14 can be rotated in the opposite direction, which drives the gear 10 to rotate in the opposite direction. The gear 10 can drive the racks 11 on both sides to move in opposite directions, making radial linear retraction motion. The racks 11 can then drive the insert 12 to retract from the insertion hole 16. The rod 9 retracts into the cavity, disengaging the locking mechanism from the support beam 3. This allows the rod 9 to be pulled out of the mounting hole 15, releasing the restriction on the deformable part 7 and enabling the removal of the loading component 4. Through this design, the locking and unlocking functions of the core locking mechanism are achieved via gear 10 and rack 11, effectively avoiding direct exposure to the harsh environment of electroplating solution. It is less affected by the electroplating solution, and the connection is achieved only through the engagement of the insert 12 and the insertion hole 16, thus preventing corrosion and jamming. Furthermore, disassembly only requires a gentle reverse rotation of the gripping strip 14 to unlock, eliminating the need for wrenches or other tools to apply significant torque. This labor-saving and quick operation greatly reduces the workload and operation time of maintenance personnel, improving production and maintenance efficiency.The device is flexible in assembly and disassembly, facilitating the replacement of the loading component 4 and offering good applicability. A slide rail is provided inside the cavity, and the rack 11 is slidably connected within the slide rail. This slide rail provides precise guidance for the rack 11, ensuring it maintains linear motion during movement without deviation or jamming, thus making the transmission smoother and more reliable. The gear 10 and rack 11 engage with involute teeth. The rack 11 and insert 12 are integrally molded. A PTFE sealing ring is provided on the inner wall of the slot to prevent electroplating solution from entering the cavity. The clearance between the insert 12 and the slot is 0.1-0.3 mm, ensuring that the insert 12 can move radially without easily jamming.
[0017] Please see Figure 3-5 As shown, a torsion spring 17 is fitted on the rotating rod 13. The torsion spring 17 is made of stainless steel and coated with a polyurethane anti-corrosion layer. One end of the torsion spring 17 is fixedly connected to the rotating rod 13, and the other end is fixedly connected to the inner wall of the cavity. The torsion spring 17 is used to drive the rotating rod 13 to reset so that the insert 12 can pass out of the slot. The torsion spring 17 provides the force for automatic reset, which can ensure that under normal circumstances, the insert 12 always maintains the tendency to extend outward under the action of the torsion spring 17, thereby automatically locking in the insertion hole 16, increasing the reliability of locking, preventing the locking mechanism from loosening due to accidental contact or vibration, and only needs to rotate the pinch strip 14 to unlock. After releasing, it will automatically lock under the action of the torsion spring 17, which is convenient to operate. A slot is opened on the rotating rod 13, and a limit hole is opened on the inner wall of the cavity. The torsion spring 17 is fitted on the bottom of the rotating rod 13, with one end fixed in the slot and the other end fixed in the limit hole.
[0018] Please see Figure 1 , Figure 2 As shown, the support beam 3 is detachably installed inside the frame 1, allowing for disassembly and replacement of the support beam 3 and extending the service life of the entire fixture. Connecting sections 19 are provided on both sides of the support beam 3. The connecting sections 19 are fixed inside the frame 1 by connecting components, including bolts 20 that pass through the side wall of the frame 1 and the connecting sections 19 in sequence. Nuts 21 are threaded onto the bolts 20. By fitting the connecting sections 19 against the side wall of the frame 1, then tightening the bolts 20 through the side wall of the frame 1 and the connecting sections 19, and finally locking them with the nuts 21, the support beam 3 can be securely installed on the frame 1. Separating the bolts 20 and nuts 21 releases the fixation of the support beam 3, making disassembly and assembly of the support beam 3 convenient. The connecting sections 19 are perpendicular to the support beam 3, and holes for the bolts 20 to pass through are provided on both the connecting sections 19 and the side wall of the frame 1.
[0019] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0020] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A plating fixture, comprising a frame (1) and a hook (2) disposed on the top of the frame (1), wherein the frame (1) is provided with a plurality of support beams (3), and the support beams (3) are provided with a plurality of loading components (4) for loading workpieces, characterized in that: The loading component (4) includes a rod (5) and hooks (6) provided at both ends of the rod (5). A U-shaped deformable part (7) is provided in the middle of the rod (5). The loading component (4) is detachably mounted on the support beam (3) via a locking mechanism. The locking mechanism includes a pressure cap (8), a rod (9), and a transmission assembly disposed inside the rod (9). The rod (9) has a cavity inside. The transmission assembly includes a gear (10) rotatably connected inside the cavity and two racks (11) meshing with both sides of the gear (10). Each rack (11) is connected to a radially movable insert (12) at the end away from the gear (10). The side wall of the rod (9) has a through groove for the insert (12) to pass through. A rotating rod (13) is fixedly connected to the center of the gear (10). The rotating rod (13) passes through the bottom wall of the rod (9) and is connected to a pinching strip (14). The support beam (3) has multiple mounting holes (15) along its length. The rod (9) is used to pass through the deformable part (7) and insert into the mounting hole (15). The inner wall of the mounting hole (15) has two insertion holes (16) for inserting the insert (12). When the insert (12) is inserted into the insertion hole (16), the clamping cap (8) can press the deformable part (7) onto the support beam (3).
2. The electroplating fixture according to claim 1, characterized in that: A torsion spring (17) is fitted on the rotating rod (13). One end of the torsion spring (17) is fixedly connected to the rotating rod (13), and the other end is fixedly connected to the inner wall of the cavity. The torsion spring (17) is used to drive the rotating rod (13) to reset so that the insert (12) can pass through the slot.
3. The electroplating fixture according to claim 1, characterized in that: The cavity is provided with a slide, and the rack (11) is slidably connected inside the slide.
4. The electroplating fixture according to claim 1, characterized in that: Each of the support beams (3) has a support frame (18) at its bottom for supporting the loading component (4).
5. The electroplating fixture according to claim 1, characterized in that: The support beam (3) is detachably installed inside the frame (1).
6. The electroplating fixture according to claim 5, characterized in that: The support beam (3) has connecting sections (19) on both sides. The connecting sections (19) are fixed inside the frame (1) by connecting components. The connecting components include bolts (20) for passing through the side wall of the frame (1) and the connecting sections (19) in sequence. Nuts (21) are threaded onto the bolts (20).