A machining and polishing device for a cylinder guide sleeve
The polishing device using a hydraulic cylinder guide sleeve, which is fixed by an electromagnet and adjusted by a servo motor, solves the problem of difficult polishing of the clamping parts, achieving efficient and flexible polishing and convenient cleaning, and improving processing accuracy and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SANHE HYDRAULIC (CHANGZHOU) CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-08-04
AI Technical Summary
During the polishing process of the hydraulic cylinder guide sleeve, the clamping part is difficult to polish effectively, which requires secondary clamping and affects processing efficiency and accuracy.
An electromagnet is used to fix the guide sleeve of the hydraulic cylinder, which is fixed by magnetic attraction. The interval of the polishing roller is adjusted by a servo motor. Combined with nozzle flushing and motor adjustment to clean internal impurities, flexible polishing and convenient observation are achieved.
It achieves efficient fixing and flexible grinding of the hydraulic cylinder guide sleeve, reduces clamping time, improves machining accuracy and efficiency, and enhances observation and cleaning effects through the cleaning structure.
Smart Images

Figure CN224587737U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oil cylinder guide sleeve polishing technology, specifically an oil cylinder guide sleeve processing and polishing device. Background Technology
[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or oscillating motion). It has a simple structure and reliable operation. When used to achieve reciprocating motion, it eliminates the need for a speed reduction device and has no transmission backlash, resulting in smooth movement. Therefore, it is widely used in the hydraulic systems of various machines. The guide sleeve is made by pressing polytetrafluoroethylene resin into a blank, sintering and cooling it, and then precision machining it according to the geometric dimensions and tolerances required by the customer's drawings using mechanical cutting methods.
[0003] The machining of the hydraulic cylinder guide sleeve is based on precision boring. First, the inner hole, outer circle and end face are roughed by lathe to ensure basic dimensional accuracy. Then, the inner hole surface is treated by grinding or polishing to improve the surface finish and fitting accuracy and reduce friction loss during the operation of the hydraulic cylinder. Finally, flaw detection is carried out to check for defects such as cracks to ensure its guiding and sealing performance for the piston rod.
[0004] When polishing the hydraulic cylinder guide sleeve, it is usually clamped and fixed and then ground and polished. However, it is difficult to polish the clamped part during polishing, which leads to the need for secondary clamping and subsequent polishing.
[0005] Therefore, a machining and polishing device for hydraulic cylinder guide sleeves is proposed to address the above problems. Utility Model Content
[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A hydraulic cylinder guide sleeve processing and polishing device of this utility model includes a worktable, a support frame fixedly connected to the top of the worktable; a first servo motor fixedly connected to the side wall of the support frame; a first lead screw fixedly connected to the output end of the first servo motor; the first lead screw is through-hole and rotatably connected to the support frame; a slider is threadedly connected to the middle of the first lead screw; a fixing plate is fixedly connected to the bottom of the slider; a second servo motor is fixedly connected to the bottom of the fixing plate; a bidirectional lead screw is fixedly connected to the output end of the second servo motor; the bidirectional lead screw is through-hole and rotatably connected to the fixing plate; and a pair of sliding frames are threadedly connected to the middle of the bidirectional lead screw. The output end of the sliding frame is fixedly connected to a grinding motor; the output end of the grinding motor is fixedly connected to a polishing roller; a fixed base is fixedly connected to the middle of the worktable; a rotating component is provided on the side wall of the fixed base; a fixed frame is fixedly connected to the end of the rotating component; a fixed motor is fixedly connected to the middle of the fixed frame; an electromagnet is fixedly connected to the output end of the fixed motor; the electromagnet is rotatably connected to the fixed frame; by using the electromagnet, the guide sleeve of the hydraulic cylinder can be quickly attracted and fixed by magnetic force after contact at the end, which can increase the contact area during grinding. At the same time, the second servo motor can also adjust the interval between the pair of polishing rollers, thereby increasing the flexibility during grinding and increasing the adjustment of the grinding thickness.
[0008] Preferably, the electromagnet has a pair of sliding grooves in the middle; a metal block is slidably fitted inside the sliding groove; a limiting ring is fixed to the top of the metal block; by adding the metal block, the metal block can be quickly fixed by metal adsorption, and then the limiting ring can be used to add a reference when installing the hydraulic cylinder guide sleeve, so as to reduce the adjustment time when moving to the middle during installation.
[0009] Preferably, a gooseneck tube is fixedly connected to the bottom of the support frame; a nozzle is connected to the end of the gooseneck tube; a connecting pipe is fixedly connected to the top of the support frame; the connecting pipe and the gooseneck tube are connected; by adding a nozzle to rinse the polished area, it is more convenient to observe, and the gooseneck tube can be bent quickly when it needs to be bent, and it will quickly stabilize after adjustment due to its own characteristics.
[0010] Preferably, the rotating assembly includes an adjusting motor; the adjusting motor is fixedly connected to the fixed base; the adjusting motor and the fixed frame are fixedly connected; the fixed frame is rotatably connected to the fixed base; by adding an adjusting motor, the cleaning of the inside of the cylinder guide sleeve can be increased, allowing it to quickly empty internal impurities.
[0011] Preferably, a collection trough is provided in the middle of the workbench; an installation component is provided inside the collection trough; a sponge is fixed to the middle of the installation component; by adding a sponge, the splashing frequency when water drips can be reduced, so that the water can quickly enter the collection trough after contacting the sponge.
[0012] Preferably, the mounting assembly includes a mounting bracket; the mounting bracket and the collection slot are slidably fitted; a pair of pin slots are provided at the end of the mounting bracket; by using the pin slots to fix the sponge, the installation and disassembly time can be reduced during cleaning, thereby allowing for quick operation.
[0013] The advantages of this utility model are:
[0014] 1. The present invention relates to a hydraulic cylinder guide sleeve processing and polishing device. By using an electromagnet, the hydraulic cylinder guide sleeve can be quickly and magnetically attracted and fixed after contact at the end, which increases the contact area during polishing. At the same time, the second servo motor can also adjust the interval between a pair of polishing rollers, thereby increasing the flexibility during polishing and allowing for adjustment of the polishing thickness.
[0015] 2. The hydraulic cylinder guide sleeve processing and polishing device of this utility model can quickly fix the metal block by adding a metal block using metal adsorption. Then, the limiting ring can be used to add a reference when installing the hydraulic cylinder guide sleeve, so as to reduce the adjustment time when moving to the middle during installation. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the main body of this utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the fixing plate in this utility model;
[0019] Figure 3 This is a schematic diagram of the structure of the fixing frame in this utility model;
[0020] Figure 4 This is a schematic diagram of the support frame in this utility model;
[0021] Figure 5 This is a schematic diagram of the structure of the metal block in this utility model.
[0022] In the diagram: 1. Workbench; 11. Support frame; 12. First servo motor; 13. First lead screw; 14. Slider; 15. Fixing plate; 16. Second servo motor; 17. Bidirectional lead screw; 18. Sliding frame; 19. Grinding motor; 101. Polishing roller; 102. Fixing seat; 103. Rotating assembly; 104. Fixing frame; 105. Fixing motor; 106. Electromagnet; 2. Slide groove; 21. Metal block; 22. Limiting ring; 3. Gooseneck tube; 31. Nozzle; 32. Connecting pipe; 4. Adjusting motor; 5. Collection tank; 51. Mounting assembly; 52. Sponge; 6. Mounting bracket; 61. Pin slot. Detailed Implementation
[0023] 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 scope of protection of the present utility model.
[0024] Specific implementation examples are given below.
[0025] like Figures 1 to 5As shown in the figure, a hydraulic cylinder guide sleeve processing and polishing device according to an embodiment of the present invention includes a worktable 1, a support frame 11 fixedly connected to the top of the worktable 1; a first servo motor 12 fixedly connected to the side wall of the support frame 11; a first lead screw 13 fixedly connected to the output end of the first servo motor 12; the first lead screw 13 is through-connected and rotatably connected to the support frame 11; a slider 14 is threadedly connected to the middle of the first lead screw 13; a fixing plate 15 is fixedly connected to the bottom of the slider 14; a second servo motor 16 is fixedly connected to the bottom of the fixing plate 15; a bidirectional lead screw 17 is fixedly connected to the output end of the second servo motor 16; the bidirectional lead screw 17 is through-connected and rotatably connected to the fixing plate 15; the bidirectional lead screw 17 is through-connected and rotatably connected to the fixing plate 15; the bidirectional lead screw 17 is threadedly connected to the support frame 11; the first lead screw 13 is threadedly connected to the support frame 11; a slider 14 is threadedly connected to the middle of the first lead screw 13; a fixing plate 15 is fixedly connected to the bottom of the slider 14; a fixing plate 15 is fixedly connected to the bottom of the second servo motor 16; a bidirectional lead screw 17 is threadedly connected to the output end of the second servo motor 16; the ... A pair of sliding frames 18 are threadedly connected to the middle of the lead screw 17; a grinding motor 19 is fixedly connected to the output end of the sliding frame 18; a polishing roller 101 is fixedly connected to the output end of the grinding motor 19; a fixed seat 102 is fixedly connected to the middle of the worktable 1; a rotating assembly 103 is provided on the side wall of the fixed seat 102; a fixed frame 104 is fixedly connected to the end of the rotating assembly 103; a fixed motor 105 is fixedly connected to the middle of the fixed frame 104; an electromagnet 106 is fixedly connected to the output end of the fixed motor 105; the electromagnet 106 is rotatably connected to the fixed frame 104; during operation, when processing the cylinder guide sleeve, its end first contacts the electromagnet 106, and then it is moved to the middle position of the electromagnet 106. Then, the electromagnet 106 is energized to attract and fix the hydraulic cylinder guide sleeve. After fixing, the second servo motor 16 is used to rotate the bidirectional lead screw 17. When rotated, it drives a pair of sliding frames 18 to move synchronously in opposite directions to bring them closer. When they approach, they drive the polishing rollers 101 to move, adjusting the interval between the pair of polishing rollers 101 to adapt to the thickness of the hydraulic cylinder guide sleeve, so that when they contact the hydraulic cylinder guide sleeve, they simultaneously contact the inner and outer walls of the hydraulic cylinder guide sleeve. Then, during contact, a pair of grinding motors 19 are started, driving the polishing rollers 101 to rotate. After contact, they grind and polish the sleeve. While the polishing rollers 101 are grinding, the fixing motor 105 is started. When started, it drives the electromagnet... The 106 rotates, which drives the cylinder guide sleeve to rotate in the opposite direction to the polishing roller 101, thereby accelerating the polishing process. After polishing, the polishing roller 101 is restored to its original position. After restoration, the rotating component 103 is started, causing the cylinder guide sleeve to tilt, causing the internal debris to fall off, thus allowing observation of the internal polishing effect. By using the electromagnet 106 to fix the cylinder guide sleeve, the end contact is made and the magnetic force is used to quickly attract and fix it, which increases the contact area during polishing. At the same time, the second servo motor 16 can also adjust the interval between the pair of polishing rollers 101, thereby increasing the flexibility during polishing and allowing for adjustment of the polishing thickness.
[0026] like Figures 1 to 5As shown, a pair of sliding grooves 2 are provided in the middle of the electromagnet 106; a metal block 21 is slidably fitted inside the sliding groove 2; a limiting ring 22 is fixedly attached to the top of the metal block 21; during operation, when installing the hydraulic cylinder guide sleeve, the pair of metal blocks 21 can be inserted into the sliding groove 2 first, and then the pair of limiting rings 22 can be slid to adjust the distance between them to be consistent with the inner wall of the hydraulic cylinder guide sleeve. Finally, the electromagnet 106 is energized for fixation. When installing the hydraulic cylinder guide sleeve after fixation, the pair of limiting rings 22 can be used to restrict the hydraulic cylinder guide sleeve, making it located in the middle of the electromagnet 106, thereby speeding up the installation speed of the hydraulic cylinder guide sleeve; by adding the metal block 21, the metal can be quickly fixed by adsorption, and then the limiting ring 22 can be used to add a reference when installing the hydraulic cylinder guide sleeve, reducing the adjustment time of moving to the middle during installation.
[0027] like Figures 1 to 2 As shown, a gooseneck tube 3 is fixedly connected to the bottom of the support frame 11; a nozzle 31 is connected to the end of the gooseneck tube 3; a connecting pipe 32 is fixedly connected to the top of the support frame 11; the connecting pipe 32 and the gooseneck tube 3 are connected; during operation, when the polishing roller 101 polishes the oil cylinder guide sleeve, the nozzle 31 can be bent to move the nozzle 31 to the contact position between the polishing roller 101 and the oil cylinder guide sleeve. At this time, the connecting pipe 32 can be connected to a water pump to spray cooling water onto the polishing position to cool it down during long-term polishing and to wash away the debris generated during polishing; by adding a nozzle 31 to wash the polished position, it is more convenient to observe. At the same time, the gooseneck tube 3 can be bent quickly when it needs to be bent, and it will quickly stabilize after adjustment due to its own characteristics.
[0028] like Figures 1 to 3 As shown, the rotating assembly 103 includes an adjusting motor 4; the adjusting motor 4 is fixedly connected to the fixed base 102; the adjusting motor 4 and the fixed frame 104 are fixedly connected; the fixed frame 104 is rotatably connected to the fixed base 102; during operation, when there is water and debris inside the oil cylinder guide sleeve, the adjusting motor 4 can be started, causing the adjusting motor 4 to drive the fixed frame 104 to rotate. During rotation, one side of the oil cylinder guide sleeve will be lowered to tilt it. When tilted, the debris and water inside will flow out together, thereby quickly checking the polishing effect; by adding the adjusting motor 4, the cleaning inside the oil cylinder guide sleeve can be increased, allowing it to quickly pour out the internal impurities.
[0029] like Figure 1As shown, a collection tank 5 is provided in the middle of the workbench 1; an installation component 51 is provided inside the collection tank 5; a sponge 52 is fixedly connected to the middle of the installation component 51; during operation, when water drips, it will come into contact with the sponge 52, at which time the sponge 52 will quickly absorb the water, and at the same time, excess water will drip into the collection tank 5 through the sponge 52, and debris will be intercepted by the sponge 52 and remain on its surface. When the work is finished, the sponge 52 can be removed using the installation component 51 for cleaning; by adding the sponge 52, the splashing frequency when water drips can be reduced, so that it quickly enters the collection tank 5 after contacting the sponge 52.
[0030] like Figure 1 As shown, the mounting assembly 51 includes a mounting bracket 6; the mounting bracket 6 and the collection groove 5 are in sliding fit; a pair of pin slots 61 are provided at the end of the mounting bracket 6; during operation, when removing the sponge 52, the pins inside the pin slots 61 can be pulled out first, and then the mounting bracket 6 can be slid away from the collection groove 5 to remove the sponge 52; by using the pin slots 61 to fix the sponge 52, the installation and disassembly time can be reduced during cleaning, thereby allowing for quick operation.
[0031] Working principle: When processing the hydraulic cylinder guide sleeve, its end first contacts the electromagnet 106, then it is moved to the middle position of the electromagnet 106. The electromagnet 106 is then energized to attract and fix the hydraulic cylinder guide sleeve. After fixing, the second servo motor 16 rotates the bidirectional lead screw 17. This rotation drives a pair of sliding frames 18 to move synchronously in opposite directions, bringing them closer together. During this close movement, the polishing rollers 101 move, adjusting the spacing between them to accommodate the thickness of the hydraulic cylinder guide sleeve. This ensures that when they contact the hydraulic cylinder guide sleeve, they simultaneously contact both the inner and outer walls of the sleeve. Then, during this contact, a pair of grinding motors 19 are started, causing... The polishing roller 101 is rotated, and upon contact, it polishes the material. While the polishing roller 101 is polishing, the fixed motor 105 is started, which drives the electromagnet 106 to rotate. This rotation drives the hydraulic cylinder guide sleeve to rotate, causing it to rotate in the opposite direction to the polishing roller 101, thus accelerating the polishing process. After polishing, the polishing roller 101 is returned to its original position. Upon return, the rotating assembly 103 is started, causing the hydraulic cylinder guide sleeve to tilt, allowing debris to fall out and the internal polishing effect to be observed. When installing the hydraulic cylinder guide sleeve, a pair of metal blocks 21 are first inserted into the slide groove 2, and then a pair of limiting rings 22 are slid to ensure proper alignment. Adjust the spacing to match the inner wall of the cylinder guide sleeve, and finally energize the electromagnet 106 for fixation. When installing the cylinder guide sleeve after fixation, a pair of limiting rings 22 can be used to restrict the cylinder guide sleeve, keeping it in the center of the electromagnet 106, thus accelerating the installation speed. When the polishing roller 101 grinds the cylinder guide sleeve, the nozzle 31 can be bent to move it to the contact position between the polishing roller 101 and the cylinder guide sleeve. At this time, the connecting pipe 32 can be connected to a water pump to spray cooling water onto the grinding position, cooling it during prolonged grinding and simultaneously washing away the grinding debris. If there is water or debris inside the cylinder guide sleeve, the electric... When the machine 4 is started, the adjusting motor 4 drives the fixed frame 104 to rotate. During rotation, one side of the oil cylinder guide sleeve is lowered and tilted. When tilted, the internal debris and water will flow out together, allowing for a quick check of the polishing effect. When the water drips, it will come into contact with the sponge 52. The sponge 52 will quickly absorb the water, and excess water will drip into the collection tank 5 through the sponge 52. The debris is intercepted by the sponge 52 and stays on its surface. When the work is finished, the sponge 52 can be removed and cleaned using the mounting component 51. To remove the sponge 52, first pull out the pin inside the pin slot 61, and then slide the mounting frame 6 away from the collection tank 5 to remove the sponge 52.
[0032] 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 illustrative of the principles of this 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.
Claims
1. A device for machining and polishing a guide bushing of a hydraulic cylinder, characterized in that: The system includes a workbench (1), a support frame (11) fixedly connected to the top of the workbench (1); a first servo motor (12) fixedly connected to the side wall of the support frame (11); a first lead screw (13) fixedly connected to the output end of the first servo motor (12); the first lead screw (13) is through-mounted and rotatably connected to the support frame (11); a slider (14) is threadedly connected to the middle of the first lead screw (13); a fixing plate (15) is fixedly connected to the bottom of the slider (14); a second servo motor (16) is fixedly connected to the bottom of the fixing plate (15); a bidirectional lead screw (17) is fixedly connected to the output end of the second servo motor (16); the bidirectional lead screw (17) is through-mounted to the fixing plate (15). The bidirectional lead screw (17) is threaded with a pair of sliding frames (18) in the middle; the output end of the sliding frame (18) is fixedly connected to a grinding motor (19); the output end of the grinding motor (19) is fixedly connected to a polishing roller (101); the worktable (1) is fixedly connected to a fixed seat (102) in the middle; the fixed seat (102) is provided with a rotating assembly (103) on its side wall; the end of the rotating assembly (103) is fixedly connected to a fixed frame (104); the fixed frame (104) is fixedly connected to a fixed motor (105) in the middle; the output end of the fixed motor (105) is fixedly connected to an electromagnet (106); the electromagnet (106) is rotatably connected to the fixed frame (104).
2. The oil cylinder guide bushing machining and polishing device according to claim 1, characterized in that: The electromagnet (106) has a pair of sliding grooves (2) in the middle; a metal block (21) is slidably fitted inside the sliding groove (2); a limit ring (22) is fixedly connected to the top of the metal block (21).
3. The device according to claim 2, characterized in that: The bottom of the support frame (11) is fixedly connected to a gooseneck tube (3); the end of the gooseneck tube (3) is connected to a nozzle (31); the top of the support frame (11) is fixedly connected to a connecting pipe (32); the connecting pipe (32) and the gooseneck tube (3) are connected.
4. The oil cylinder guide bushing machining and polishing device according to claim 3, characterized in that: The rotating assembly (103) includes an adjusting motor (4); the adjusting motor (4) is fixedly connected to the fixed base (102); the adjusting motor (4) and the fixed frame (104) are fixedly connected; the fixed frame (104) is rotatably connected to the fixed base (102).
5. The device for processing and polishing the guide sleeve of the oil cylinder according to claim 4, characterized in that: The workbench (1) has a collection trough (5) in the middle; the collection trough (5) has an installation component (51) inside; and a sponge (52) is fixed in the middle of the installation component (51).
6. The device for processing and polishing the guide sleeve of a cylinder according to claim 5, characterized in that: The mounting assembly (51) includes a mounting bracket (6); the mounting bracket (6) and the collection groove (5) are in sliding fit; a pair of pin slots (61) are provided at the end of the mounting bracket (6).