Positioning tool structure for dustproof piano cover production

By cooperating with the clamping components and linkage components of the positioning tooling structure, the U-shaped support plate is automatically clamped and released, which solves the problem of low efficiency in the existing technology and improves production efficiency and assembly convenience.

CN224334314UActive Publication Date: 2026-06-09WUHU YIHENG PRECISION MACHINERY TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHU YIHENG PRECISION MACHINERY TECHNOLOGY CO LTD
Filing Date
2025-07-22
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

In the existing technology, the fixing efficiency of the U-shaped support plate and the corrugated cloth is low, and the hand-held operation by the worker affects other operations.

Method used

The positioning fixture structure includes a support frame and clamping components. Multiple clamping components are controlled by a linkage component to simultaneously clamp or release the U-shaped support plate. Combined with a magnetic plate and an electromagnet, automated operation is achieved.

Benefits of technology

It improves production efficiency, simplifies the assembly process of the bellows cover, and is suitable for mass production and standardized manufacturing.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the technical field of auxiliary equipment for bellows cover manufacturing, and in particular to a positioning fixture structure for the production of dustproof bellows covers. It includes a support frame with at least two clamping components mounted along its length. Each clamping component includes two symmetrically arranged and openable clamping arms. The clamping components have a first state and a second state. In the first state, the two clamping arms clamp a U-shaped support plate; in the second state, the two clamping arms release the U-shaped support plate. The fixture structure includes a linkage component that controls all clamping components to be simultaneously in either the first or second state. This structure enables the simultaneous clamping and releasing of multiple U-shaped support plates, improving production efficiency and avoiding the inconvenience of manual hand operation.
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Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for bellows cover manufacturing, and in particular to a positioning tooling structure for the production of dustproof bellows covers. Background Technology

[0002] The main function of bellows covers is to provide safety protection, environmental protection, and operational assistance for moving mechanical parts. Their flexible structure and high extensibility make them suitable for protecting various guide rails, lead screws, lifting platforms, slides, and other components.

[0003] The production process for accordion covers is as follows: First, a corrugated flexible fabric is manufactured, referring to... Figures 1-3 Then, a plastic support plate is fixed between every two corrugations (to stably support the flexible corrugated fabric). This is typically achieved by heat melting or fixing with rigid screws. (See reference...) Figure 2 After fixing the corrugated fabric to the upper end of the U-shaped support plate, refer to... Figure 3 Then, flip the corrugated fabric downwards and fix it on the side. Finally, straighten the bent corrugated fabric, and the U-shaped accordion cover is completed. In the existing technology, the U-shaped support plate is usually fixed to the corrugated fabric by workers holding the U-shaped support plate one by one. This method is inefficient and affects other operations of the workers when holding the U-shaped support plate. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that in the existing technology, fixing the U-shaped support plate to the corrugated cloth is generally done by workers holding the U-shaped support plate one by one, which is inefficient and affects other operations of the workers when holding the U-shaped support plate. Therefore, a positioning fixture structure for the production of dustproof bellows covers is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A positioning fixture structure for the production of dustproof bellows covers includes a support frame. At least two clamping assemblies are mounted on the support frame along its length. Each clamping assembly includes two symmetrically arranged and openable clamping arms. The clamping assemblies have a first state and a second state. In the first state, the two clamping arms can clamp a U-shaped support plate. In the second state, the two clamping arms can release the U-shaped support plate. The fixture structure includes a linkage assembly that can control all clamping assemblies to be in the first state or the second state simultaneously.

[0007] The clamping arm includes at least a clamping plate, a support shaft, and a force-applying plate. The clamping plate and the force-applying plate are located on the upper and lower sides of the support shaft, respectively. The support shaft is horizontally arranged and rotatably connected to the support frame. An elastic element is installed between the two force-applying plates of each clamping assembly. The linkage assembly can control the force-applying plate to rotate around the support shaft so that each pair of clamping plates clamps or releases the corresponding U-shaped support plate.

[0008] At least one of the clamping plates of each clamping assembly has a support plate on its inner side, and a clamping space is formed between the two clamping plates. The width of the support plate is less than the thickness of the U-shaped support plate.

[0009] The clamping plate is a straight plate structure, the force-applying plate is an arc-shaped structure that bends outward, and the clamping plate and the force-applying plate are integrally bent structures.

[0010] The linkage assembly includes a connecting frame located below the clamping assembly. Each force-applying plate is connected to the connecting frame with a pull rope. The two pull ropes corresponding to each set of clamping assemblies are distributed in a V-shape. The end of the pull rope away from the connecting frame is located outside the two support shafts. When the connecting frame moves downward, it can cause the two force-applying plates of each clamping assembly to rotate in opposite directions around the support shafts and cause the elastic element to compress and store energy.

[0011] The bottom of the connecting frame is fixed with several magnetic plates, and each magnetic plate is equipped with an electromagnet. The electromagnet is fixed to the support frame or the ground. When the electromagnet is energized, it can drive the connecting frame to move downward through the magnetic plates.

[0012] The connecting frame is slidably connected to several vertically arranged guide rods, which are fixed to the support frame or the ground.

[0013] The elastic element is a sheet or a thrust spring.

[0014] This utility model proposes a positioning fixture structure for the production of dustproof bellows covers. The advantages of this structure are: it enables the simultaneous clamping and release of multiple U-shaped support plates, improving production efficiency and avoiding the inconvenience of manual hand operation. Through the cooperation of the clamping components and the linkage components, the assembly process of the bellows cover corrugated fabric and the U-shaped support plates is simplified, improving positioning convenience and making it suitable for the mass production and standardized manufacturing of bellows covers. Attached Figure Description

[0015] Figure 1 A schematic diagram of the existing corrugated fabric and U-shaped support plate distribution from the front view;

[0016] Figure 2 This is a schematic diagram of the left-side structure of the corrugated fabric and U-shaped support plate fixed in two stages according to this utility model.

[0017] Figure 3This is a three-dimensional structural diagram of the present invention;

[0018] Figure 4 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the front sectional view of the present invention;

[0020] Figure 6 For the present utility model Figure 5 A partially enlarged structural diagram;

[0021] Figure 7 This is a three-dimensional structural diagram of the two clamping arms of this utility model;

[0022] Figure 8 This is a schematic diagram of the structure of a single clamping arm and a U-shaped support plate of this utility model.

[0023] In the diagram: 1. Electromagnet; 2. Magnetic plate; 3. Connecting frame; 4. Pull rope; 5. Elastic element; 6. Support frame; 7. U-shaped support plate; 8. Corrugated cloth; 9. Support plate; 10. Clamping plate; 11. Support shaft; 12. Force plate; 13. Guide rod; 14. Clamping assembly; 15. Clamping space; 16. Clamping arm. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figures 3-8 A positioning fixture structure for the production of dustproof bellows covers includes a support frame 6. At least two clamping components 14 are installed on the support frame 6 along its length. Each clamping component 14 includes two symmetrically arranged and openable clamping arms 16. The clamping components 14 have a first state and a second state. In the first state, the two clamping arms 16 can clamp a U-shaped support plate 7. In the second state, the two clamping arms 16 can release the U-shaped support plate 7. The fixture structure includes a linkage component that can control all clamping components 14 to be in the first state or the second state simultaneously.

[0026] Multiple clamping components 14 are simultaneously controlled to be in clamping or releasing states via a linkage mechanism. In use, all clamping components 14 are first positioned in the second state, with both clamping arms 16 open. At this point, the worker places the U-shaped support plates 7 one by one between their corresponding pairs of clamping arms 16. After placement, all clamping components 14 are returned to the first state, where each pair of clamping arms 16 retracts, clamping their respective U-shaped support plates 7, achieving batch positioning. Next, corrugated fabric 8 is laid flat on top of the clamped and positioned U-shaped support plates 7, and fixed to them using heat fusion or screws. After fixing, the corrugated fabric 8 is straightened, and the clamping components 14 are returned to the second state, releasing all U-shaped support plates 7, completing the assembly process for one accordion cover section. Finally, the section is packaged.

[0027] This structure enables the simultaneous clamping and release of multiple U-shaped support plates, improving production efficiency and avoiding the inconvenience of manual hand operation. Through the cooperation of the clamping and linkage components, the assembly process of the bellows cover corrugated fabric and U-shaped support plates is simplified, improving positioning convenience and making it suitable for mass production and standardized manufacturing of bellows covers.

[0028] refer to Figure 6 As one embodiment of the clamping assembly 14, the clamping arm 16 includes at least a clamping plate 10, a support shaft 11, and a force-applying plate 12. The clamping plate 10 and the force-applying plate 12 are located on the upper and lower sides of the support shaft 11, respectively. The support shaft 11 is horizontally arranged and rotatably connected to the support frame 6. An elastic element 5 is installed between the two force-applying plates 12 of each clamping assembly 14. The linkage assembly can control the force-applying plate 12 to rotate around the support shaft 11 so that each pair of clamping plates 10 clamps or releases the corresponding U-shaped support plate 7.

[0029] The clamping plate 10 is located on the upper side of the support shaft 11, and the force-applying plate 12 is located on the lower side of the support shaft 11. The support shaft 11 is horizontally set and rotatably connected to the support frame 6 to form the rotation axis of the clamping arm 16.

[0030] An elastic element 5 is installed between the two force-applying plates 12 of each clamping assembly 14. The elastic element 5 is used to provide elastic restoring force. When the linkage assembly drives the force-applying plate 12 to rotate inward, the force-applying plate 12 rotates around the support shaft 11, causing the clamping plate 10 to swing outward, so that the two clamping plates 10 gradually move away from each other, thereby releasing the U-shaped support plate 7. When the linkage assembly is released, the elastic element 5 rebounds, pushing the force-applying plate 12 to rotate in the opposite direction, so that the two clamping plates 10 come closer together, thereby clamping the U-shaped support plate 7.

[0031] At least one clamping plate 10 of each clamping assembly 14 has a support plate 9 on its inner side, and a clamping space 15 is formed between the two clamping plates 10. The width of the support plate 9 is less than the thickness of the U-shaped support plate 7. (Reference) Figure 6The support plate 9 provides initial support for the U-shaped support plate 7, facilitating the initial placement of the U-shaped support plate 7. Once all the plates are placed, they are clamped together uniformly.

[0032] In one embodiment, the clamping plate 10 is a straight plate structure, and the force-applying plate 12 is an arc-shaped structure that bends outward. The clamping plate 10 and the force-applying plate 12 are integrally bent structures.

[0033] The linkage assembly includes a connecting frame 3 located below the clamping assembly 14. Each force-applying plate 12 is connected to the connecting frame 3 by a pull rope 4. The two pull ropes 4 corresponding to each set of clamping assemblies 14 are distributed in a V-shape. The end of the pull rope 4 away from the connecting frame 3 is located outside the two support shafts 11. When the connecting frame 3 moves downward, it can cause the two force-applying plates 12 of each clamping assembly 14 to rotate towards each other around the support shaft 11 and cause the elastic element 5 to compress and store energy. Several magnetic plates 2 are fixedly attached to the bottom of the connecting frame 3. An electromagnet 1 is provided below each magnetic plate 2. The electromagnet 1 is fixed to the support frame 6 or the ground. When the electromagnet 1 is energized, it can drive the connecting frame 3 to move downward through the magnetic plates 2.

[0034] An elastic element 5 is installed between the two force-applying plates 12 of each clamping assembly 14. The elastic element 5 provides elastic restoring force. When the linkage assembly drives the force-applying plate 12 to rotate inward, the force-applying plate 12 rotates around the support shaft 11, causing the clamping plate 10 to swing outward, gradually moving the two clamping plates 10 away from each other, thereby releasing the U-shaped support plate 7. When the linkage assembly is released, the elastic element 5 rebounds, pushing the force-applying plate 12 to rotate in the opposite direction, causing the two clamping plates 10 to gradually move closer, thereby clamping the U-shaped support plate 7 and achieving stable positioning.

[0035] The linkage assembly includes a connecting frame 3 located below the clamping assembly 14. Each force-applying plate 12 is connected to the connecting frame 3 by a pull rope 4. The two pull ropes 4 corresponding to each set of clamping assemblies 14 are arranged in a V-shape, with the end of the pull rope 4 away from the connecting frame 3 located on the outside of the two support shafts 11. When the connecting frame 3 moves downward, the pull rope 4 drives the two force-applying plates 12 to rotate inward simultaneously, thereby causing the clamping plate 10 to swing outward, while simultaneously compressing and storing energy in the elastic element 5.

[0036] Several magnetic plates 2 are fixed to the bottom of the connecting frame 3, and an electromagnet 1 is installed below each magnetic plate 2. The electromagnet 1 is fixed to the support frame 6 or the ground. When the electromagnet 1 is energized, it generates a magnetic force to attract the magnetic plates 2, causing the connecting frame 3 to move downward as a whole. This causes the clamping plates 10 of all clamping components 14 to simultaneously move away from and release the U-shaped support plate 7. When the electromagnet 1 is de-energized, the magnetic attraction is released, the connecting frame 3 no longer pulls downward, the elastic element 5 releases its stored energy, and pushes the force application plate 12 to rotate in the opposite direction, causing the clamping plates 10 to close inward, thereby clamping the U-shaped support plate 7 and achieving rapid positioning and clamping.

[0037] The connecting frame 3 is slidably connected to several vertically arranged guide rods 13, which are fixed to the support frame 6 or the ground; the elastic element 5 is a spring or a thrust spring.

[0038] The connecting frame 3 is slidably connected with several vertically arranged guide rods 13. The guide rods 13 are used to guide and limit the up and down movement of the connecting frame 3, ensuring that the connecting frame 3 runs smoothly in the vertical direction. The elastic element 5 can be a spring sheet or a thrust spring. Different structures can be flexibly selected according to the actual situation such as clamping force requirements, assembly space and service life, to ensure that the clamping mechanism has good elastic recovery performance and stable clamping effect.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any technical solution, concept, or design obtained by those skilled in the art by making equivalent substitutions or changes based on the technical solution and utility model concept disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A positioning tool structure for dustproof piano cover production, comprising a support frame (6), characterized in that, The support frame (6) is equipped with at least two clamping components (14) along its length. Each clamping component (14) includes two symmetrically arranged and openable clamping arms (16). The clamping components (14) have a first state and a second state. In the first state, the two clamping arms (16) can clamp the U-shaped support plate (7). In the second state, the two clamping arms (16) can release the U-shaped support plate (7). The tooling structure includes a linkage component. The linkage component can control all clamping components (14) to be in the first state or the second state at the same time.

2. The positioning fixture structure for producing dustproof bellows covers according to claim 1, characterized in that, The clamping arm (16) includes at least a clamping plate (10), a support shaft (11), and a force-applying plate (12). The clamping plate (10) and the force-applying plate (12) are located on the upper and lower sides of the support shaft (11), respectively. The support shaft (11) is horizontally arranged and rotatably connected to the support frame (6). An elastic element (5) is installed between the two force-applying plates (12) of each clamping assembly (14). The linkage assembly can control the force-applying plate (12) to rotate around the support shaft (11) so that each pair of clamping plates (10) clamps or releases the corresponding U-shaped support plate (7).

3. The positioning fixture structure for producing dustproof bellows covers according to claim 2, characterized in that, At least one of the clamping plates (10) of each clamping assembly (14) has a support plate (9) on its inner side, and a clamping space (15) is formed between the two clamping plates (10), wherein the width of the support plate (9) is less than the thickness of the U-shaped support plate (7).

4. A positioning fixture structure for the production of dustproof bellows covers according to claim 2, characterized in that, The clamping plate (10) is a straight plate structure, and the force-applying plate (12) is an arc-shaped structure that bends outward. The clamping plate (10) and the force-applying plate (12) are integrally bent structures.

5. A positioning fixture structure for the production of dustproof bellows covers according to any one of claims 2-4, characterized in that, The linkage assembly includes a connecting frame (3) located below the clamping assembly (14). Each force-applying plate (12) is connected to the connecting frame (3) by a pull rope (4). The two pull ropes (4) corresponding to each set of clamping assemblies (14) are distributed in a V-shape. The end of the pull rope (4) away from the connecting frame (3) is located outside the two support shafts (11). When the connecting frame (3) moves downward, it can make the two force-applying plates (12) of each clamping assembly (14) rotate towards each other around the support shaft (11) and compress and store energy in the elastic element (5).

6. A positioning fixture structure for the production of dustproof bellows covers according to claim 5, characterized in that, The bottom of the connecting frame (3) is fixed with several magnetic plates (2), and each magnetic plate (2) is provided with an electromagnet (1) below it. The electromagnet (1) is fixed to the support frame (6) or the ground. When the electromagnet (1) is energized, it can drive the connecting frame (3) to move downward through the magnetic plates (2).

7. A positioning fixture structure for the production of dustproof bellows covers according to claim 5, characterized in that, The connecting frame (3) is slidably connected to several vertically arranged guide rods (13), and the guide rods (13) are fixed to the support frame (6) or the ground.

8. A positioning fixture structure for the production of dustproof bellows covers according to claim 5, characterized in that, The elastic element (5) is a spring sheet or a thrust spring.