Air cylinder return stroke device
By introducing a nitrogen cylinder and a cylinder return device driven by a combination of cylinders into the mold, the problem of insufficient cylinder power was solved, and the stable linear motion and return of the wedge slider were realized, improving the efficiency and accuracy of the forming operation.
Patent Information
- Application Number
- CN202520356323.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-03-03
AI Technical Summary
In existing technologies, the cylinder power is insufficient to meet the working and return requirements of the wedge slider, resulting in low production efficiency of automotive side panel forming molds.
Using a nitrogen cylinder as the supporting force source and a gas cylinder as the driving force source, the inclined wedge slider is connected through a buffer support component and a power component. The nitrogen cylinder's elasticity storage and release provide a stable supporting force, enabling the linear movement and return motion of the inclined wedge slider.
The cylinder diameter was reduced, which improved the compactness and stability of the mold structure, ensured that the wedge slider accurately reached the predetermined position, and improved the efficiency and precision of the forming operation.
Smart Images
Figure CN223775816U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stamping die technology, specifically to a cylinder return device. Background Technology
[0002] Automobiles are an important modern means of transportation, composed of a variety of parts. The production process of these parts is divided into several steps, such as casting, forging, stamping, welding, and machining. Among them, the side panels of automobiles, due to their irregular shape, usually require shaping of the workpiece blank after forging and stamping processes.
[0003] Currently, when designing automotive flanging and shaping dies, side flanging and side shaping wedge mechanisms are commonly used, and to improve production efficiency, a cylinder return mechanism is required. However, due to process design and product limitations, the wedge slider is heavy, the cylinder force is insufficient, and the cylinder cannot meet the requirements for wedge operation and return. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a cylinder return device, which solves the problems mentioned in the background section.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a cylinder return device, comprising a power assembly, two sets of buffer support assemblies, and a wedge slider. Both the buffer support assemblies and the power assembly are connected to the wedge slider. The buffer support assembly includes a nitrogen cylinder mounting plate and a nitrogen cylinder fixedly mounted on the nitrogen cylinder mounting plate. A nitrogen cylinder top block is fixedly connected to the output end of the nitrogen cylinder, and the nitrogen cylinder top block is fixedly connected to the wedge slider. The power assembly includes a cylinder mounting plate and a cylinder fixedly mounted on the cylinder mounting plate. A cylinder connecting block is fixedly connected to the end of the wedge slider, and the cylinder output end is fixedly mounted to the cylinder connecting block via a cylinder connecting nut.
[0008] Preferably, two sets of V-shaped guide rails are fixedly connected to the wedge slider, and the two sets of V-shaped guide rails are distributed on both sides of the cylinder connecting block.
[0009] Preferably, both sides of the wedge slider are fixedly connected with wedge side guide plates.
[0010] Preferably, multiple guide plates are fixedly connected to the wedge slider, and the guide plates are linearly and equidistantly distributed.
[0011] Preferably, both the nitrogen cylinder mounting plate and the cylinder mounting plate have openings.
[0012] (III) Beneficial Effects
[0013] This utility model provides a cylinder return device, which has the following beneficial effects:
[0014] 1. In this utility model, a nitrogen cylinder is used as a supporting force source to offset the weight of the wedge slider itself. The cylinder acts as a driving force source to make the wedge slider move in a straight line, thereby performing forming and return movements. This greatly reduces the cylinder diameter, resulting in a compact structure and good stability. The supporting effect of the nitrogen cylinder comes from the elastic force it provides under compression. When the nitrogen cylinder is compressed, the pressure of the nitrogen gas stores energy, and when released, it returns to its original form, providing a uniform and continuous supporting force.
[0015] 2. In this utility model, two V-shaped guide rails and corresponding V-shaped guide bars are provided to guide the wedge slider in a straight line, so that the wedge slider can reach the predetermined position stably and accurately. The V-shaped guide rails and V-shaped guide bars are matched and need to be precisely machined to avoid the wedge slider from deviating or vibrating during the movement. Attached Figure Description
[0016] Figure 1 This is a frontal perspective view of a cylinder return device proposed in this utility model;
[0017] Figure 2 This is a bottom perspective view of a cylinder return device proposed in this utility model;
[0018] Figure 3 This is a side perspective view of a cylinder return device proposed in this utility model.
[0019] In the diagram: 1. Wedge slider; 2. Nitrogen cylinder top block; 3. Nitrogen cylinder; 4. Nitrogen cylinder mounting plate; 5. V-shaped guide rail; 6. Cylinder; 7. Cylinder mounting plate; 8. Cylinder connecting block; 9. Cylinder connecting nut; 10. Wedge side guide plate; 11. Guide plate. Detailed Implementation
[0020] 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.
[0021] Please see Figures 1 to 3This utility model provides a technical solution: a cylinder return device, including a power component, two sets of buffer support components and a wedge slider 1. Both the buffer support components and the power component are connected to the wedge slider 1. The buffer support components include a nitrogen cylinder mounting plate 4 and a nitrogen cylinder 3 fixedly mounted on the nitrogen cylinder mounting plate 4. The output end of the nitrogen cylinder 3 is fixedly connected to a nitrogen cylinder top block 2. The nitrogen cylinder top block 2 is fixedly connected to the wedge slider 1. The power component includes a cylinder mounting plate 7 and a cylinder 6 fixedly mounted on the cylinder mounting plate 7. The end of the wedge slider 1 is fixedly connected to a cylinder connecting block 8. The output end of the cylinder 6 is fixedly mounted to the cylinder connecting block 8 through a cylinder connecting nut 9.
[0022] Using a nitrogen cylinder 3 as the supporting force source offsets the weight of the wedge slider 1 itself. A cylinder 6 serves as the driving force source, causing the wedge slider 1 to move linearly, thus performing forming and return movements. This significantly reduces the cylinder diameter of the cylinder 6, resulting in a compact structure and good stability. The supporting effect of the nitrogen cylinder 3 comes from the elastic force it provides under compression. When the nitrogen cylinder 3 is compressed, the pressure of the nitrogen stores energy; upon release, it returns to its original shape, providing a uniform and continuous supporting force.
[0023] When it is necessary to drive the wedge slider 1 to move, the cylinder 6 needs to be actively activated, and the wedge slider 1 is pushed to linear displacement through the cylinder connecting block 8 to perform the flanging and shaping of the automotive parts.
[0024] Two sets of V-shaped guide rails 5 are fixedly connected to the inclined wedge slider 1, and the two sets of V-shaped guide rails 5 are distributed on both sides of the cylinder connecting block 8.
[0025] Two V-shaped guide rails 5 and corresponding V-shaped guide bars are set up to guide the wedge slider 1 in a straight line, so that the wedge slider 1 can reach the predetermined position stably and accurately. The V-shaped guide rails 5 and V-shaped guide bars are matched and need to be precisely machined to avoid the wedge slider 1 from deviating or vibrating during the movement. The V-shaped guide bars are fixedly installed on the lower mold.
[0026] Both sides of the wedge slider 1 are fixedly connected with wedge side guide plates 10. The wedge side guide plates 10 match the guide components of the lower mold, thus achieving the purpose of linear guidance of the wedge slider 1.
[0027] Multiple guide plates 11 are fixedly connected to the wedge slider 1. The guide plates 11 are linearly and equidistantly distributed. The guide plates 11 can also be used in conjunction with external guide components to achieve linear guidance.
[0028] Both the nitrogen cylinder mounting plate 4 and the cylinder mounting plate 7 have openings, which facilitates the fixing of the cylinder onto the lower mold using fasteners.
[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A cylinder return device, characterized in that: The device includes a power assembly, two sets of buffer support assemblies, and a wedge slider (1). Both the buffer support assembly and the power assembly are connected to the wedge slider (1). The buffer support assembly includes a nitrogen cylinder mounting plate (4) and a nitrogen cylinder (3) fixedly mounted on the nitrogen cylinder mounting plate (4). The output end of the nitrogen cylinder (3) is fixedly connected to a nitrogen cylinder top block (2). The nitrogen cylinder top block (2) is fixedly connected to the wedge slider (1). The power assembly includes a cylinder mounting plate (7) and a cylinder (6) fixedly mounted on the cylinder mounting plate (7). The end of the wedge slider (1) is fixedly connected to a cylinder connecting block (8). The output end of the cylinder (6) is fixedly mounted to the cylinder connecting block (8) through a cylinder connecting nut (9).
2. The cylinder return device according to claim 1, characterized in that: Two sets of V-shaped guide rails (5) are fixedly connected to the inclined wedge slider (1), and the two sets of V-shaped guide rails (5) are distributed on both sides of the cylinder connecting block (8).
3. The cylinder return device according to claim 1, characterized in that: Both sides of the wedge slider (1) are fixedly connected with wedge side guide plates (10).
4. A cylinder return device according to claim 1, characterized in that: Multiple guide plates (11) are fixedly connected to the wedge slider (1), and the guide plates (11) are linearly and equidistantly distributed.
5. A cylinder return device according to claim 1, characterized in that: Both the nitrogen cylinder mounting plate (4) and the cylinder mounting plate (7) have openings.