A polishing device for processing the inner wall of a large oil cylinder body

Abstract

The utility model relates to oil cylinder body polishing technology field, concretely is a kind of for processing large oil cylinder body inner wall's polishing device, it include: base, the top surface of base is equipped with support, the middle part top surface of support is placed with cylinder body main part, the top surface of base is placed with collecting cylinder;Positioning structure is installed on the support, the positioning structure includes threaded rod, threaded rod is installed in the upper end surface of support by screw thread activity, the end of threaded rod is rotatably connected with clamping plate, the outer wall of clamping plate is fixedly connected with guide rod.The utility model can be clamped in the top surface edge of cylinder body main part by setting the clamping plate of the shape of "L", can be positioned to cylinder body main part in horizontal and vertical direction, can make the installation of cylinder body main part keep stable in the middle part of support, polishing block can be polished to the inner wall of cylinder body main part comprehensively when lifting activity, improve the use stability of device.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder body grinding and polishing technology, specifically a grinding and polishing device for processing the inner wall of a large hydraulic cylinder. Background Technology

[0002] A hydraulic cylinder is a hydraulic power component that converts hydraulic energy into mechanical energy. Because hydraulic cylinders must withstand great pressure when working, the heavier the load on the hydraulic cylinder, the greater its pressure will be. Therefore, it is necessary to ensure that the inner wall of the cylinder is smooth and flat. Currently, manual grinding of the cylinder is used, which is inefficient.

[0003] In response, Chinese patent application number CN202022228793.6 discloses a cylinder inner wall grinding device for hydraulic cylinder production, including a support plate and a rotating rod. Fixing mechanisms are provided on both sides of the rotating rod, each fixing mechanism including two connecting blocks located on either side of the rotating rod. A fixing block is also located on one side of each connecting block. A first limiting groove is formed on the outer side of the inner wall of the fixing block, and a grinding strip is provided on one side of the fixing block. A third limiting groove is formed on the inner surface of the first limiting groove, and a limiting block is provided inside the third limiting groove. A spring is provided at one end of the limiting block, and a slot is formed on the outer side of the inner wall of the fixing block at the other end. By designing the fixing mechanism, disassembly can be completed simply by moving the lever and pulling the grinding strip. This allows for effective replacement of the grinding strip when it wears down after prolonged use. The operation is simple and quick, resulting in better subsequent grinding effects.

[0004] The device uses an extrusion plate to fix the cylinder, but the extrusion plate only fits the side wall of the cylinder and cannot position the top surface of the cylinder, resulting in poor stability. When the grinding strip polishes the inner wall of the cylinder, the cylinder is prone to upward displacement, causing the polishing position to shift and affecting the polishing effect of the inner wall of the cylinder.

[0005] Therefore, in order to solve the above problems, a grinding and polishing device for processing the inner wall of a large hydraulic cylinder is proposed. Utility Model Content

[0006] The purpose of this utility model is to provide a grinding and polishing device for processing the inner wall of a large hydraulic cylinder, so as to solve the problem mentioned in the background art that the extrusion plate of the device only fits the side wall of the hydraulic cylinder, cannot be positioned on the top surface of the hydraulic cylinder, has poor stability, and the hydraulic cylinder is prone to upward displacement when the grinding strip is grinding and polishing the inner wall of the hydraulic cylinder, causing the grinding and polishing position to shift and affecting the grinding and polishing effect of the inner wall of the hydraulic cylinder.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a grinding and polishing device for processing the inner wall of a large hydraulic cylinder, comprising: a base, a bracket mounted on the top surface of the base, a cylinder body placed on the top surface of the middle part of the bracket, and a collection cylinder placed on the top surface of the base; The bracket is equipped with a positioning structure, which includes a threaded rod. The threaded rod is movably mounted on the upper surface of the bracket via a thread. A clamping plate is rotatably connected to the end of the threaded rod. A guide rod is fixedly connected to the outer wall of the clamping plate. A first cylinder is fixedly installed in the middle of the top surface of the base. A motor is fixedly connected to the extended end of the first cylinder. A rotating shaft is rotatably connected to the output end of the motor. A grinding block is provided at the upper end of the rotating shaft. A collection structure is installed in the middle of the bracket. The collection structure includes a receiving plate, which is fixedly installed on the lower side of the middle of the bracket. A guide groove is opened on the top edge of the receiving plate, and a discharge hose is connected to the front end of the bottom of the receiving plate. A second cylinder is fixedly installed on the bottom surface of the middle of the bracket.

[0008] Preferably, the clamping plate has an "L" shaped structure, the clamping plate is clamped at the top edge of the cylinder body, and the guide rod passes through the bracket.

[0009] Preferably, the rotating shaft passes through the receiving plate, and the rotating shaft is movably connected to the receiving plate through a sealed bearing.

[0010] Preferably, the bottom surface of the guide groove is inclined, the discharge hose is located below the bottom end of the guide groove, the guide groove is connected to the inside of the discharge hose, the bottom end of the discharge hose is located inside the collection cylinder, and the extended end of the second cylinder is fixedly connected to the receiving plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are: by setting an "L"-shaped clamp, this utility model can be locked on the edge of the top surface of the cylinder body, which can limit the cylinder body in both horizontal and vertical directions, so that the cylinder body can be stably installed in the middle of the bracket. When the grinding block moves up and down, it can polish the inner wall of the cylinder body, thus improving the stability of the device.

[0012] 1. This utility model, by setting a positioning structure, places the cylinder body on the top surface of the middle of the bracket. The cylinder body is sleeved on the outside of the rotating shaft. The rotating threaded rod is threadedly connected to the bracket. When the threaded rod rotates, it will extend and retract on the surface of the bracket. The threaded rod will drive the clamping plate to approach the cylinder body. The clamping plate is stuck at the top edge of the cylinder body, which can limit the cylinder body in the horizontal and vertical directions, so that the installation of the cylinder body in the middle of the bracket can remain stable. 2. This utility model features a collection structure. Activating the second cylinder raises the receiving plate, bringing its top surface into contact with the bottom center of the support. Starting the motor rotates the rotating shaft, which polishes the inner wall of the cylinder body using a grinding block. Simultaneously, activating the first cylinder moves the rotating shaft upwards within the cylinder body, adjusting the polishing position to ensure thorough polishing. The receiving plate seals the inner wall of the cylinder body from below, preventing dust from escaping during polishing. The dust falls onto the top surface of the receiving plate. After processing, activating the second cylinder lowers the receiving plate, allowing the dust to slide into a guide groove and flow towards the discharge hose. The dust is then collected in the first cylinder via the discharge hose, achieving unified dust collection and treatment, thus improving the device's practicality. Attached Figure Description

[0013] Figure 1 This is a front view schematic diagram of the structure of this utility model; Figure 2 This is an exploded view of the structure of this utility model; Figure 3 This is a front sectional view of the structure of this utility model; Figure 4 This is a side view sectional diagram of the collecting structure of this utility model.

[0014] In the diagram: 1. Base; 11. Bracket; 12. Cylinder body; 13. Collection cylinder; 2. Positioning structure; 21. Threaded rod; 22. Clamping plate; 23. Guide rod; 24. First cylinder; 25. Motor; 26. Rotating shaft; 27. Grinding block; 3. Collection structure; 31. Receiver plate; 32. Guide groove; 33. Discharge hose; 34. Second cylinder. 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 Figures 1-4 This utility model provides an embodiment of a grinding and polishing device for processing the inner wall of a large hydraulic cylinder: The base 1, bracket 11, cylinder body 12, first cylinder 24, motor 25 and second cylinder 34 used in this application are products that can be purchased directly on the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be described in detail here.

[0017] A polishing device for processing the inner wall of a large hydraulic cylinder includes: a base 1, a bracket 11 mounted on the top surface of the base 1, a cylinder body 12 placed on the top surface of the middle part of the bracket 11, and a collection cylinder 13 placed on the top surface of the base 1. A positioning structure 2 is installed on the bracket 11. The positioning structure 2 includes a threaded rod 21, which is movably installed on the upper surface of the bracket 11 via a thread. A clamping plate 22 is rotatably connected to the end of the threaded rod 21. A guide rod 23 is fixedly connected to the outer wall of the clamping plate 22. A first cylinder 24 is fixedly installed in the middle of the top surface of the base 1. A motor 25 is fixedly connected to the extended end of the first cylinder 24. A rotating shaft 26 is rotatably connected to the output end of the motor 25. A grinding block 27 is provided at the upper end of the rotating shaft 26. The clamping plate 22 can be locked on the edge of the top surface of the cylinder body 12, which can limit the cylinder body 12 in the horizontal and vertical directions, so that the installation of the cylinder body 12 in the middle of the bracket 11 can be kept stable. When the grinding block 27 moves up and down, it can polish the inner wall of the cylinder body 12, which improves the stability of the device. A collection structure 3 is installed in the middle of the bracket 11. The collection structure 3 includes a receiving plate 31. The receiving plate 31 is fixedly installed on the lower side of the middle of the bracket 11. A guide groove 32 is opened on the top edge of the receiving plate 31. A discharge hose 33 is connected to the front end of the bottom of the receiving plate 31. A second cylinder 34 is fixedly installed on the bottom surface of the middle of the bracket 11.

[0018] Furthermore, the clamping plate 22 has an "L" shaped structure. The clamping plate 22 is clamped at the top edge of the cylinder body 12. The guide rod 23 passes through the bracket 11. The clamping plate 22 can stably fix the cylinder body 12, and the guide rod 23 serves as a guide and limiter for the movement of the clamping plate 22.

[0019] Furthermore, the rotating shaft 26 passes through the receiving plate 31 and is movably connected to the receiving plate 31 through a sealed bearing. The rotating shaft 26 can rotate inside the receiving plate 31, and dust will not enter between the rotating shaft 26 and the receiving plate 31.

[0020] Furthermore, the bottom surface of the guide trough 32 is inclined, and the discharge hose 33 is located below the bottom end of the guide trough 32. The guide trough 32 and the discharge hose 33 are connected internally. The bottom end of the discharge hose 33 is located inside the collection cylinder 13. The extended end of the second cylinder 34 is fixedly connected to the receiving plate 31. The dust in the guide trough 32 can be discharged into the collection cylinder 13 through the discharge hose 33. The second cylinder 34 provides power for the lifting and lowering movement of the receiving plate 31.

[0021] Working principle: During processing, the cylinder body 12 is placed on the top surface of the middle part of the bracket 11. The cylinder body 12 is sleeved on the outside of the rotating shaft 26. The threaded rod 21 is rotated and is threadedly connected to the bracket 11. When the threaded rod 21 rotates, it will extend and retract on the surface of the bracket 11. The threaded rod 21 drives the clamping plate 22 to approach the cylinder body 12. The clamping plate 22 is stuck at the top edge of the cylinder body 12, which can limit the cylinder body 12 in the horizontal and vertical directions, so that the installation of the cylinder body 12 in the middle of the bracket 11 remains stable. Place the collection cylinder 13 on the top surface of the base 1, and place the discharge hose 33 inside the collection cylinder 13. Activate the second cylinder 34, which will lift the receiving plate 31, so that the top surface of the receiving plate 31 is in contact with the bottom center of the bracket 11. Activate the motor 25, which will drive the rotating shaft 26 to rotate. When the rotating shaft 26 rotates, it will polish the inner wall of the cylinder body 12 through the grinding block 27. Activate the first cylinder 24, which will drive the rotating shaft 26 to move upward inside the cylinder body 12. The movement of the rotating shaft 26 can adjust the polishing of the inner wall of the cylinder body 12. The polishing position allows for comprehensive polishing of the inner wall of the cylinder body 12. The receiving plate 31 can seal the inner wall of the cylinder body 12 from the bottom, preventing dust generated during polishing from escaping. The dust will fall downwards onto the top surface of the receiving plate 31. After processing, the second cylinder 34 is activated to lower the receiving plate 31. The dust that falls onto the top surface of the receiving plate 31 slides into the guide groove 32 and moves towards the discharge hose 33 along the bottom of the guide groove 32. Then, it is collected in the first cylinder 24 through the discharge hose 33, achieving unified collection and treatment of dust and improving the practicality of the device.

[0022] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A grinding and polishing device for processing the inner wall of a large hydraulic cylinder, comprising: A base (1) is provided with a bracket (11) on its top surface. A cylinder body (12) is placed on the top surface of the middle part of the bracket (11). A collection tube (13) is placed on the top surface of the base (1). Its features are: A positioning structure (2) is installed on the bracket (11). The positioning structure (2) includes a threaded rod (21). The threaded rod (21) is movably installed on the upper surface of the bracket (11) by a thread. A clamping plate (22) is rotatably connected to the end of the threaded rod (21). A guide rod (23) is fixedly connected to the outer wall of the clamping plate (22). A first cylinder (24) is fixedly installed in the middle of the top surface of the base (1). A motor (25) is fixedly connected to the extended end of the first cylinder (24). A rotating shaft (26) is rotatably connected to the output end of the motor (25). A grinding block (27) is provided at the upper end of the rotating shaft (26). A collection structure (3) is installed in the middle of the bracket (11). The collection structure (3) includes a receiving plate (31). The receiving plate (31) is fixedly installed on the lower side of the middle of the bracket (11). A guide groove (32) is opened on the top edge of the receiving plate (31). A discharge hose (33) is connected to the front end of the bottom of the receiving plate (31). A second cylinder (34) is fixedly installed on the bottom surface of the middle of the bracket (11).

2. The grinding and polishing device for processing the inner wall of a large hydraulic cylinder according to claim 1, characterized in that: The clamp (22) has an "L" shape and is clamped at the top edge of the cylinder body (12). The guide rod (23) passes through the bracket (11).

3. A grinding and polishing device for processing the inner wall of a large hydraulic cylinder according to claim 1, characterized in that: The rotating shaft (26) passes through the receiving plate (31), and the rotating shaft (26) is movably connected to the receiving plate (31) through a sealed bearing.

4. A grinding and polishing device for processing the inner wall of a large hydraulic cylinder according to claim 1, characterized in that: The bottom surface of the guide groove (32) is inclined, the discharge hose (33) is located below the bottom end of the guide groove (32), the guide groove (32) and the discharge hose (33) are connected internally, the bottom end of the discharge hose (33) is located inside the collection cylinder (13), and the extended end of the second cylinder (34) is fixedly connected to the receiving plate (31).

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