A bending device for a cylinder guard

The hydraulic cylinder protective cover bending device, designed with vacuum adsorption and vibration reduction, solves the problems of unstable fixation and vibration effects, achieving high-precision flexible clamping and stable processing, thus improving product quality and device reliability.

CN224309357UActive Publication Date: 2026-06-02NANJING DIBAO MAGNETIC ABRASIVES CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING DIBAO MAGNETIC ABRASIVES CO LTD
Filing Date
2025-06-24
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing bending devices are difficult to effectively fix the hydraulic cylinder guard, resulting in displacement, offset or slippage. In addition, traditional rigid clamping methods are prone to surface scratches, affecting processing accuracy and product quality.

Method used

The vacuum adsorption fixing method is adopted. The outer surface of the protective cover is uniformly adsorbed by a vacuum pump, air pipe, air inlet box and adsorption plate. Combined with damping rod, spring and rubber pad to absorb vibration pressure, flexible clamping and vibration reduction are achieved.

Benefits of technology

It improved bending accuracy, reduced product scrap, protected the integrity of the protective cover surface, and enhanced the stability and service life of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of oil cylinder protective cover bending device, belong to oil cylinder protective cover field, including workbench, the upper surface of the workbench is fixedly connected with L-shaped support, the inner cavity top of L-shaped support is fixedly connected with two air cylinders, the inner cavity of L-shaped support is provided with bending part, the upper surface of the workbench is provided with frame, the inner cavity bottom of the frame is fixedly connected with air inlet tank, the upper surface of the air inlet tank is fixedly connected with adsorption disc through several transmission pipes, the top four corner positions of the frame are all fixedly connected with receiving plate, the bottom of the workbench is provided with vacuum air pump, one side of the frame is provided with air pipe;By the cooperation between above each device, effectively avoid the displacement, deviation even the situation of sliding of protective cover in bending process, to improve bending accuracy, reduce the product scrappage phenomenon caused by not firm, improve the qualified rate of product.
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Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder protective cover technology, specifically a hydraulic cylinder protective cover bending device. Background Technology

[0002] A hydraulic cylinder guard is a device specifically designed to protect hydraulic cylinders in a hydraulic system. It aims to prevent external contaminants such as dust, impurities, and moisture from entering the cylinder, while also resisting mechanical damage such as scratches or impacts. This ensures the cylinder can operate stably for a long time. Such guards are typically made of wear-resistant and corrosion-resistant materials, which can be metal or special synthetic materials, depending on the specific application and requirements. They not only help extend the service life of the cylinder but also maintain the cleanliness and efficiency of the hydraulic system to a certain extent, playing a vital role in improving the reliability and performance of the entire hydraulic equipment.

[0003] Existing bending devices often struggle to effectively secure hydraulic cylinder guards during processing, leading to displacement, shifting, or even slippage during bending. This insecure securing not only affects bending accuracy but also risks product scrapping. Furthermore, traditional equipment often employs rigid clamping methods, which, while providing significant clamping force, can easily cause surface scratches, indentations, and other quality issues for guards with high surface requirements or soft materials, severely impacting product appearance and subsequent performance.

[0004] Therefore, this utility model provides a hydraulic cylinder protective cover bending device to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] This utility model provides a hydraulic cylinder protective cover bending device, which aims to solve the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic cylinder protective cover bending device, comprising a workbench, an L-shaped bracket fixedly connected to the upper surface of the workbench, two cylinders fixedly connected to the top of the inner cavity of the L-shaped bracket, a bending section provided in the inner cavity of the L-shaped bracket, a frame provided on the upper surface of the workbench, an air inlet box fixedly connected to the bottom of the inner cavity of the frame, an adsorption plate fixedly connected to the upper surface of the air inlet box through several transmission pipes, a receiving plate fixedly connected to the four corners of the top of the frame, a vacuum pump provided at the bottom of the workbench, and a vent pipe provided on one side of the frame.

[0009] As a preferred technical solution of this application, the output end of the cylinder is fixedly connected to one side of the adjacent bend, one end of the vent pipe passes through the adjacent frame and one side of the air inlet box in sequence through the sealing bushing, and the other end of the vent pipe passes through the top of the workbench and is fixedly connected to the output end of the vacuum pump.

[0010] As a preferred technical solution of this application, a plurality of bases are provided below the frame, and damping rods are provided in the inner cavity of the bases.

[0011] As a preferred technical solution of this application, the top of the damping rod is fixedly connected to the bottom of the frame, and a rubber pad is fixedly connected to the bottom of the damping rod. The bottom of the rubber pad is fixedly connected to the bottom of the inner cavity of the corresponding base.

[0012] As a preferred technical solution of this application, the outer ring of the damping rod is fitted with a spring, one end of the spring is fixedly connected to the bottom of the frame, the other end of the spring is fixedly connected to one end of an adjacent rubber pad, and the bottom of the base is fixedly connected to the top of the workbench.

[0013] As a preferred technical solution of this application, a fixing frame is fixedly connected to the bottom of the workbench, and the outer ring of the vacuum pump is fixedly connected to the bottom of the workbench by a number of bolts on both sides.

[0014] (III) Beneficial Effects

[0015] By incorporating a vacuum pump, air inlet pipe, air inlet box, transfer pipe, and adsorption plate, the outer surface of the protective cover can be uniformly adsorbed, effectively preventing displacement, shifting, or even slippage during bending. This improves bending accuracy, reduces product scrap due to insecure fixing, and increases the product qualification rate. Furthermore, compared to the rigid clamping method used in traditional equipment, this vacuum adsorption fixing method does not cause scratches, indentations, or other quality problems on the surface of the protective cover. It is especially suitable for protective covers with high surface requirements or soft materials, effectively ensuring the product's appearance and subsequent performance.

[0016] By incorporating damping rods, springs, rubber pads, and a base, the vibration pressure generated during bending can be effectively absorbed and dispersed, reducing the impact of vibrations on the processing, enhancing the stability and reliability of the device, and extending its service life. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure of a hydraulic cylinder protective cover bending device;

[0018] Figure 2 A schematic diagram of the vacuum pump in a hydraulic cylinder protective cover bending device;

[0019] Figure 3 This is a schematic diagram of the frame structure in a hydraulic cylinder protective cover bending device.

[0020] Figure 4 This is a schematic diagram of the transmission pipe in a hydraulic cylinder protective cover bending device.

[0021] Figure 5 This is a schematic diagram of the structure of a rubber pad in a hydraulic cylinder protective cover bending device.

[0022] In the picture:

[0023] 1. Workbench; 2. L-shaped support; 3. Cylinder; 4. Bending section; 5. Fixing frame; 6. Vacuum pump; 7. Frame; 8. Vent pipe; 9. Receiving plate; 10. Adsorption plate; 11. Transfer pipe; 12. Air inlet box; 13. Sealing bushing; 14. Base; 15. Rubber pad; 16. Damping rod; 17. Spring. 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides a bending device, such as Figures 1-5 As shown, the technical solution includes a workbench 1, an L-shaped bracket 2 fixedly connected to the upper surface of the workbench 1, two cylinders 3 fixedly connected to the top of the inner cavity of the L-shaped bracket 2, a bending part 4 provided in the inner cavity of the L-shaped bracket 2, a frame 7 provided on the upper surface of the workbench 1, an air inlet box 12 fixedly connected to the bottom of the inner cavity of the frame 7, an adsorption plate 10 fixedly connected to the upper surface of the air inlet box 12 through several transmission pipes 11, a receiving plate 9 fixedly connected to the four corners of the top of the frame 7, a vacuum pump 6 provided at the bottom of the workbench 1, and a ventilation pipe 8 provided on one side of the frame 7.

[0026] The output end of cylinder 3 is fixedly connected to one side of the adjacent bending part 4. One end of the vent pipe 8 passes through the adjacent frame 7 and one side of the air inlet box 12 in sequence through the sealing bushing 13. The other end of the vent pipe 8 passes through the top of the workbench 1 and is fixedly connected to the output end of the vacuum pump 6. With one end of the vent pipe 8 passing through the sealing bushing 13 in sequence through the frame 7 and one side of the air inlet box 12, and the other end passing through the top of the workbench 1 and fixedly connected to the output end of the vacuum pump 6, after the vacuum pump 6 is started, air is effectively extracted through the vent pipe 8, so that the air inlet box 12 and the transmission pipe 11 and the adsorption plate 10 connected thereto form a negative pressure environment, thereby achieving uniform adsorption on the outer surface of the protective cover, achieving the effect of stable and flexible clamping of the protective cover and avoiding surface damage.

[0027] Several bases 14 are provided below the frame 7. The inner cavity of the base 14 is provided with damping rods 16. Through the setting of damping rods 16 in the inner cavity of the base 14, the vibration pressure generated during bending is transmitted to the damping rods 16 through the frame 7, and the rods absorb part of the impact energy, thereby reducing the overall vibration of the equipment and improving the structural stability.

[0028] The top of the damping rod 16 is fixedly connected to the bottom of the frame 7, and a rubber pad 15 is fixedly connected to the bottom of the damping rod 16. The bottom of the rubber pad 15 is fixedly connected to the bottom of the inner cavity of the corresponding base 14. By fixing the top of the damping rod 16 to the bottom of the frame 7, fixing the bottom to the rubber pad 15, and fixing the rubber pad 15 to the bottom of the inner cavity of the base 14, when vibration energy is transmitted to the rubber pad 15, the rubber material further absorbs the remaining vibration energy through its own elastic deformation, thereby enhancing the vibration damping and buffering performance.

[0029] A spring 17 is fitted around the outer ring of the damping rod 16. One end of the spring 17 is fixedly connected to the bottom of the frame 7, and the other end of the spring 17 is fixedly connected to one end of the adjacent rubber pad 15. The bottom of the base 14 is fixedly connected to the top of the workbench 1. By fitting the spring 17 around the outer ring of the damping rod 16, with one end fixedly connected to the bottom of the frame 7 and the other end fixedly connected to the rubber pad 15, and in conjunction with the fixed connection between the base 14 and the top of the workbench 1, the spring 17 can provide a certain amount of rebound force and support force in the vertical direction during the operation of the device. Together with the damping rod 16 and the rubber pad 15, it can jointly reduce vibration, optimize the vibration reduction effect, and improve the stability and safety of the device operation.

[0030] The bottom of the workbench 1 is fixedly connected to a fixing frame 5. The outer ring of the vacuum pump 6 is fixedly connected to the bottom of the workbench 1 by several bolts. The fixing frame 5 provides stable support for the workbench 1.

[0031] Specifically: First, the operator places the hydraulic cylinder protective cover to be bent onto the receiving plate 9, with both sides of the cover in contact with the receiving plate 9 and the bottom of the cover against the adsorption plate 10. The operator then starts the vacuum pump 6, which is connected to the air inlet box 12 via the air pipe 8. The pump 6 draws air from above the adsorption plate 10 through the transmission pipe 11, allowing the adsorption plate 10 to adhere evenly to the outer surface of the cover, achieving a stable yet flexible fixation effect. This avoids surface damage to the cover that may be caused by traditional rigid clamping methods. Next, the operator uses a synchronizer to control the cylinder 3, which moves the bending part 4 downwards, precisely aligning it with the cover for bending. During this process, the frame 7 is subjected to vibration pressure, and its vibration energy is absorbed by the damping rod 16 and the spring 17, and finally distributed to the base 14 through the rubber pad 15, effectively reducing additional displacement or offset caused by vibration.

[0032] 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 equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hydraulic cylinder protective cover bending device, comprising a workbench (1), characterized in that: An L-shaped bracket (2) is fixedly connected to the upper surface of the workbench (1). Two cylinders (3) are fixedly connected to the top of the inner cavity of the L-shaped bracket (2). A bending part (4) is provided in the inner cavity of the L-shaped bracket (2). A frame (7) is provided on the upper surface of the workbench (1). An air inlet box (12) is fixedly connected to the bottom of the inner cavity of the frame (7). An adsorption plate (10) is fixedly connected to the upper surface of the air inlet box (12) through several transmission pipes (11). A receiving plate (9) is fixedly connected to the four corners of the top of the frame (7). A vacuum pump (6) is provided at the bottom of the workbench (1). A ventilation pipe (8) is provided on one side of the frame (7).

2. The hydraulic cylinder protective cover bending device according to claim 1, characterized in that: The output end of the cylinder (3) is fixedly connected to one side of the adjacent bending part (4). One end of the vent pipe (8) passes through the adjacent frame (7) and one side of the air inlet box (12) in sequence through the sealing bushing (13). The other end of the vent pipe (8) passes through the top of the workbench (1) and is fixedly connected to the output end of the vacuum pump (6).

3. The hydraulic cylinder protective cover bending device according to claim 1, characterized in that: Several bases (14) are provided below the frame (7), and damping rods (16) are provided in the inner cavity of the bases (14).

4. The hydraulic cylinder protective cover bending device according to claim 3, characterized in that: The top of the damping rod (16) is fixedly connected to the bottom of the frame (7), and a rubber pad (15) is fixedly connected to the bottom of the damping rod (16). The bottom of the rubber pad (15) is fixedly connected to the bottom of the inner cavity of the corresponding base (14).

5. The hydraulic cylinder protective cover bending device according to claim 4, characterized in that: The damping rod (16) is fitted with a spring (17) on its outer ring. One end of the spring (17) is fixedly connected to the bottom of the frame (7), and the other end of the spring (17) is fixedly connected to one end of the adjacent rubber pad (15). The bottom of the base (14) is fixedly connected to the top of the workbench (1).

6. The hydraulic cylinder protective cover bending device according to claim 1, characterized in that: The bottom of the workbench (1) is fixedly connected to a fixing frame (5), and the outer ring of the vacuum pump (6) is fixedly connected to the bottom of the workbench (1) by several bolts on both sides.