Manufacturing device for bidirectional buffering hydraulic oil cylinder
By designing a hydraulic cylinder manufacturing device that includes a buffer, a cylinder, and a gripper, the automated assembly of hydraulic rods was realized, solving the problems of low assembly efficiency and high cost of existing hydraulic cylinders, improving assembly efficiency and extending the service life of the cylinders.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU SMART ELECTRIC APPLIANCE CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-17
AI Technical Summary
The existing hydraulic cylinders have low assembly efficiency and high cost, manual operation is labor-intensive, and high-end equipment is expensive.
Design a manufacturing device that includes components such as a base, turntable, cylinder, and gripper. Through the cooperation of buffer, cylinder, and spring, the hydraulic rod can be automatically assembled. The hydraulic rod can be precisely positioned and clamped by the rotation of the turntable and the control of the cylinder.
It improves the assembly efficiency of hydraulic rods, protects the service life of cylinder components, and reduces labor costs and equipment costs.
Smart Images

Figure CN224129560U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydraulic cylinder manufacturing technology, specifically to a manufacturing device for a bidirectional buffer hydraulic cylinder. Background Technology
[0002] Hydraulic cylinders are the core actuators in hydraulic systems. They convert the pressure energy of fluid into mechanical energy to drive loads in linear reciprocating motion or oscillation at a limited angle. They are simple in structure, reliable in operation, and widely used in engineering machinery, machine tools, lifting equipment, and other fields.
[0003] Most existing hydraulic cylinders are installed manually. After the cylinder body is fixed, the hydraulic rod, which has been brushed with lubricating oil, is aligned with the inside of the cylinder body and then driven into the cylinder body using a hammer. This operation is labor-intensive and has low assembly and manufacturing efficiency. Alternatively, assembly can be done using high-end equipment, but the cost is high. Therefore, a simple hydraulic cylinder assembly device is needed to improve manufacturing efficiency.
[0004] Therefore, it is necessary to design a manufacturing device for bidirectional buffer hydraulic cylinders that is practical and automatically assembled. Utility Model Content
[0005] The purpose of this invention is to provide a manufacturing apparatus for a bidirectional buffer hydraulic cylinder, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a manufacturing apparatus for a bidirectional buffer hydraulic cylinder, comprising a base, a turntable disposed above the base, a first support frame disposed inside the turntable, a first cylinder disposed above the first support frame, and a second cylinder disposed at the rod end of the first cylinder.
[0007] According to the above technical solution, a support plate is provided on the outer side of the second cylinder, and a buffer is provided on the rear side of the support plate. The other end of the buffer is connected to the first support frame.
[0008] According to the above technical solution, a limiting plate is provided on the outer side of the second cylinder, a third cylinder is provided on the front side of the limiting plate, a spring is wrapped around the outer side of the rod end of the third cylinder, an extension plate is provided on the front side of the first support frame, and the rod end of the third cylinder is connected to the extension plate.
[0009] According to the above technical solution, a first connecting plate is rotatably connected to the outer side of the extension plate, a second connecting plate is rotatably connected to the outer side of the extension plate, a transition block is provided on the outer side of the second cylinder, a third connecting plate is rotatably connected to the outer side of the transition block, the third connecting plate is connected to the second connecting plate, and a fixing frame is rotatably connected to the ends of the first connecting plate and the second connecting plate, and a first gripper is provided on the inner side of the fixing frame.
[0010] According to the above technical solution, a controller is provided on the outside of the second cylinder, and a push plate is provided on the rod end of the second cylinder.
[0011] According to the above technical solution, a height-increasing frame is provided above the base, and a telescopic device is provided on the inner side of the height-increasing frame. The telescopic end of the telescopic device is provided with a second gripper.
[0012] Compared with the prior art, the beneficial effects achieved by this utility model are:
[0013] (1) By setting a buffer, the first cylinder is vertical to the base under normal conditions. When the hydraulic rod is fixed and ready for installation, the turntable will drive the first support frame to rotate 90° counterclockwise and be horizontal with the base, ready for assembly. When in the vertical state, the hydraulic rod will generate a downward impact force when it is put in. The buffer will help buffer the downward impact force of the second cylinder when the hydraulic rod is put in, protect the first cylinder and improve its service life.
[0014] (2) By setting a third cylinder, the third cylinder works with the spring to control the distance between the extension plate and the limit plate, and at this time the first cylinder is in the retracted state. At this time the rear clamping device is in the clamping state. When it is necessary to fix the hydraulic rod, the first cylinder extends the rod and compresses the third cylinder and the spring, so that the hydraulic rod can be clamped by the subsequent fixing device. Then the first cylinder unloads the force, and the third cylinder works with the spring's rebound force to push back the limit plate, so that the hydraulic rod can be clamped.
[0015] (3) By setting a second cylinder, after rotating the position, the hydraulic rod is aligned with the cylinder body. The first cylinder is started again to push the second cylinder, so that it drives the hydraulic rod to be inserted into the cylinder body. Then the controller controls the second cylinder to extend the rod, and pushes the hydraulic rod completely into the cylinder body through the push plate, thereby completing the assembly. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the entire utility model;
[0017] Figure 2 This is a top view of some components of this utility model;
[0018] Figure 3 This is a front structural diagram of some components of this utility model;
[0019] In the diagram: 1. Base; 2. Turntable; 3. First support frame; 4. First cylinder; 5. Second cylinder; 6. Support plate; 7. Buffer; 8. Limiting plate; 9. Third cylinder; 10. Extension plate; 11. First connecting plate; 12. Second connecting plate; 13. Fixing frame; 14. First gripper; 15. Third connecting plate; 16. Adapter block; 17. Controller; 18. Push plate; 19. Raising frame; 20. Telescopic device; 21. Second gripper; 22. Spring. 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. 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.
[0021] Please see Figure 1-3 The present invention provides a technical solution: a manufacturing device for a bidirectional buffer hydraulic cylinder, comprising a base 1, a turntable 2 above the base 1, a first support frame 3 inside the turntable 2, a first cylinder 4 above the first support frame 3, and a second cylinder 5 at the rod end of the first cylinder 4. Under normal conditions, the first cylinder 4 is vertical to the base 1. When the hydraulic rod is fixed and ready for installation, the turntable 2 will drive the first support frame 3 to rotate 90° counterclockwise to be horizontal with the base 1, ready for assembly.
[0022] A support plate 6 is provided on the outside of the second cylinder 5, and a buffer 7 is provided on the rear side of the support plate 6. The other end of the buffer 7 is connected to the first support frame 3. When the hydraulic rod is inserted in the vertical position, it will generate a downward impact force. The buffer 7 will help buffer the downward impact force of the second cylinder 5 caused when the hydraulic rod is inserted, protect the first cylinder 4, and improve its service life.
[0023] A limit plate 8 is provided on the outside of the second cylinder 5, and a third cylinder 9 is provided on the front side of the limit plate 8. A spring 22 is wrapped around the outside of the rod end of the third cylinder 9. An extension plate 10 is provided on the front side of the first support frame 3. The rod end of the third cylinder 9 is connected to the extension plate 10. The third cylinder 9, in conjunction with the spring 22, controls the distance between the extension plate 10 and the limit plate 8. At this time, the first cylinder 4 is in a retracted state, and the rear clamping device is in a clamping state. When it is necessary to fix the hydraulic rod, the first cylinder 4 extends its rod, compressing the third cylinder 9 and the spring 22, so that the hydraulic rod can be clamped by the subsequent fixing device. Then the first cylinder 4 releases the force, and the third cylinder 9, in conjunction with the rebound force of the spring 22, pushes back the limit plate 8 to achieve clamping of the hydraulic rod.
[0024] The outer side of the extension plate 10 is rotatably connected to a first connecting plate 11, and the outer side of the extension plate 10 is rotatably connected to a second connecting plate 12. The outer side of the second cylinder 5 is provided with a transition block 16, and the outer side of the transition block 16 is rotatably connected to a third connecting plate 15. The third connecting plate 15 and the second connecting plate 12 are connected to each other. The ends of the first connecting plate 11 and the second connecting plate 12 are rotatably connected to a fixing frame 13. The inner side of the fixing frame 13 is provided with a first gripper 14. The third cylinder 9, in conjunction with the spring 22, pulls the transition block 16 to the right, thereby pulling the second connecting plate 12 through the third connecting plate 15, so that it cooperates with the first connecting plate 11 to gather the fixing frame 13 in the middle, and clamps the hydraulic rod through the first gripper 14. Conversely, pushing the transition block 16 to the left can open the first gripper 14, thereby achieving the effect of opening the first gripper 14 and inserting the hydraulic rod according to the first cylinder 4, and the first cylinder 4 unloads the force and the third cylinder 9 rebounds to clamp the hydraulic rod.
[0025] A controller 17 is provided on the outside of the second cylinder 5, and a push plate 18 is provided on the rod end of the second cylinder 5. After rotation, the hydraulic rod is aligned with the cylinder body, and the first cylinder 4 is started again to push the second cylinder 5, so that it drives the hydraulic rod to be inserted into the cylinder body. Then the controller 17 controls the second cylinder 5 to extend the rod, and pushes the hydraulic rod completely into the cylinder body through the push plate 18, thereby completing the assembly.
[0026] A heightening frame 19 is provided above the base 1. A telescopic device 20 is provided on the inner side of the heightening frame 19. A second gripper 21 is provided at the telescopic end of the telescopic device 20. The worker uses the second gripper 21 driven by the telescopic device 20 to clamp and fix the cylinder body, which is then assembled later.
[0027] 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.
Claims
1. A manufacturing apparatus for a bidirectional buffer hydraulic cylinder, comprising a base (1), characterized in that: A turntable (2) is provided above the base (1), a first support frame (3) is provided inside the turntable (2), a first cylinder (4) is provided above the first support frame (3), and a second cylinder (5) is provided at the rod end of the first cylinder (4).
2. The manufacturing device for bidirectional cushion hydraulic cylinder according to claim 1, characterized in that: A support plate (6) is provided on the outer side of the second cylinder (5), and a buffer (7) is provided on the rear side of the support plate (6). The other end of the buffer (7) is connected to the first support frame (3).
3. The manufacturing device for bidirectional cushion hydraulic cylinder according to claim 2, characterized in that: A limiting plate (8) is provided on the outside of the second cylinder (5), and a third cylinder (9) is provided on the front side of the limiting plate (8). A spring (22) is wrapped around the outside of the rod end of the third cylinder (9). An extension plate (10) is provided on the front side of the first support frame (3). The rod end of the third cylinder (9) is connected to the extension plate (10).
4. The manufacturing device for bidirectional cushion hydraulic cylinder according to claim 3, characterized in that: The outer side of the extension plate (10) is rotatably connected to a first connecting plate (11), the outer side of the extension plate (10) is rotatably connected to a second connecting plate (12), the outer side of the second cylinder (5) is provided with a transition block (16), the outer side of the transition block (16) is rotatably connected to a third connecting plate (15), the third connecting plate (15) and the second connecting plate (12) are connected to each other, the ends of the first connecting plate (11) and the second connecting plate (12) are rotatably connected to a fixing frame (13), and the inner side of the fixing frame (13) is provided with a first gripper (14).
5. The apparatus of claim 4, wherein: A controller (17) is provided on the outside of the second cylinder (5), and a push plate (18) is provided on the rod end of the second cylinder (5).
6. The manufacturing device for bidirectional cushion hydraulic cylinder according to claim 5, characterized in that: A heightening frame (19) is provided above the base (1), and a telescopic device (20) is provided on the inner side of the heightening frame (19). A second gripper (21) is provided at the telescopic end of the telescopic device (20).