Precise polishing device for inner wall of oil cylinder

Abstract

The utility model relates to the technical field of oil cylinder polishing, in particular to an oil cylinder inner wall precise polishing device which comprises a base. The device further comprises a height adjusting assembly and a filtering assembly. The second electric push rod is started to enable the second mounting block to move to a proper position, then the oil cylinder is placed on the first mounting block and the second mounting block, the first electric push rod is started to control the fixing plate to move downwards until the oil cylinder is fixed, and then the motor is started to control the first mounting block and the second mounting block to move up and down. After the axis of the oil cylinder is adjusted to be centered with the axis of a grinding head of the grinding device, cutting fluid is injected into the oil cylinder, then the grinding device is started for polishing operation, adaptation to oil cylinders with different diameters is achieved, the problem that the application range of a traditional polishing device is limited is solved, meanwhile, the cutting fluid is used in cooperation with a three-stage filtering circulation system, and polishing efficiency is improved. Abrasion and metal scraps caused by dry cutting are effectively reduced, machining precision, polishing quality and equipment universality are improved, and the service life of equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder polishing technology, and in particular to a precision polishing device for the inner wall of a hydraulic cylinder. Background Technology

[0002] Hydraulic cylinders generally refer to hydraulic cylinders. After the hydraulic cylinders are manufactured, their inner surfaces need to be very smooth so that they can perform better when used. Therefore, they need to be polished. Polishing is done using polishing equipment, so a polishing device for the inner surface of hydraulic cylinders is required.

[0003] According to the patent application published on the Internet, a polishing device for the inner wall of an agricultural vehicle cylinder (authorization announcement number: CN217914678U) describes "This utility model relates to the field of cylinder polishing technology, specifically a polishing device for the inner wall of an agricultural vehicle cylinder, including a housing, and further including: a rotation drive structure connected to the housing; a clamping structure connected to the rotation drive structure, the clamping structure including a frame, a motor frame fixedly installed in the frame, a dual-output shaft motor fixedly connected to the motor frame, lead screws fixedly installed at both output ends of the dual-output shaft motor, each lead screw threadedly connected to a sliding frame, the sliding frame slidably connected to the frame, an I-shaped frame fixedly connected to the sliding frame, the I-shaped frame having multiple sets of threaded holes, a limiting component movably connected to the I-shaped frame through the threaded holes, a supporting component movably connected to the limiting component and connected to the I-shaped frame; and a movable polishing part connected to the housing. This utility model installs a corresponding number of supporting components according to the length of the cylinder, thereby making it convenient to clamp cylinders of different lengths, thus facilitating polishing operations on cylinders of different lengths."

[0004] Regarding the above description, the applicant believes the following problems exist: While the device achieves flexible clamping of cylinders of different lengths by adjusting the number of support components according to the cylinder length, thus effectively expanding its applicability, it is only suitable for machining cylinders of the same diameter but different lengths. Furthermore, in actual polishing operations, the dry cutting method may cause abnormal wear between the grinding head and the inner surface of the cylinder, accompanied by the generation of metal shavings. Utility Model Content

[0005] To overcome the problem that the polishing device cannot be adapted to oil cylinders of different diameters, dry cutting causes abnormal wear of the grinding head and oil cylinder, and is accompanied by the generation of metal shavings.

[0006] The technical solution of this utility model is as follows: a precision polishing device for the inner wall of an oil cylinder, including a base; it also includes a height adjustment component and a filter component. A polishing device is fixedly connected to the base, and a polishing groove is fixedly connected to one end of the base away from the polishing device. Electric push rods are fixedly connected to both ends of the base. A connecting rod is fixedly connected to the output end of the electric push rod, and a slider is fixedly connected to the bottom of the connecting rod. The electric push rod is used to control the connecting rod to drive the slider to slide up and down. A guide rail is fixedly connected to the outside of the polishing groove. A fixing plate is fixedly connected to the top of the slider. A support column is fixedly connected to the base. An electric push rod is fixedly connected to the top of the support column. A slider is fixedly connected to the output end of the electric push rod. A baffle is fixedly connected to the bottom of the slider. A slider is fixedly connected to the inside of the polishing groove. A filter component is provided at the bottom of the polishing groove. A height adjustment component is provided inside the polishing groove.

[0007] Preferably, the height adjustment assembly includes a second support column, which is fixedly connected to the base. A motor is fixedly connected to the top of the second support column, and a long shaft is fixedly connected to the output end of the motor. A bevel gear 1 is mounted on the long shaft (212), which meshes with a bevel gear 2. A screw 1 is fixedly connected to the top of the bevel gear 2, and a mounting block 1 is threaded onto the screw 1. Limiting rods 1 are fixedly connected to both ends of the bottom of the mounting block 1. A bevel gear 3 is mounted on the long shaft. The motor is used to control the rotation of the long shaft to drive the bevel gear 1 and bevel gear 3 to rotate. A bevel gear 4 is meshed with the bevel gear 3, and a screw 2 is fixedly connected to the top of the bevel gear 4. A mounting block 2 is threaded onto the screw 2, and limiting rods 2 are fixedly connected to both ends of the bottom of the mounting block 2.

[0008] Preferably, when the slider rises, the fixed plate rises, and when the slider falls, the fixed plate falls.

[0009] Preferably, when slider two moves away from slider one, the distance between mounting block one and mounting block two increases.

[0010] Preferably, when screw one and screw two rotate, mounting block one and mounting block two move synchronously.

[0011] Preferably, the filter assembly includes a coarse filter screen fixedly connected to the inside of the grinding groove, a liquid storage tank fixedly connected to the bottom of the grinding groove, a filter box fixedly connected inside the liquid storage tank, a medium-efficiency filter screen fixedly connected inside the filter box, a fine filter screen fixedly connected inside the filter box, a water pump fixedly connected to the outside of the liquid storage tank, a water pipe fixedly connected to the output end of the water pump, and a support plate fixedly connected to the bottom of the water pipe.

[0012] Preferably, when the water pump is turned on, the cutting fluid in the storage tank flows into the grinding tank.

[0013] The beneficial effects of this utility model are:

[0014] 1. The structure, which uses a motor to drive the long shaft to rotate and a bevel gear to drive the screw mechanism, enables precise lifting and lowering adjustment of the mounting block. This achieves the effect of adapting the traditional polishing device to oil cylinders of different diameters, alleviating the problem of limited applicability of the polishing device and improving processing accuracy and equipment versatility.

[0015] 2. By using a cutting fluid combined with a three-layer filtration structure, a storage tank, and a water pump to circulate the cutting fluid through water pipes, continuous purification and circulation of the cutting fluid are achieved. This alleviates the problems of wear on the grinding head and cylinder and the generation of metal shavings caused by dry cutting, improves polishing quality, and extends the service life of the equipment. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic representation of the overall structure of the precision polishing device for the inner wall of the hydraulic cylinder according to this utility model.

[0017] Figure 2 The diagram shown is a top view of the present invention.

[0018] Figure 3 The diagram shown is a schematic diagram of the main structure of this utility model;

[0019] Figure 4 The diagram shown is a front view sectional view of the present utility model.

[0020] Figure 5 The diagram shown is a cross-sectional view of the height adjustment component of this utility model.

[0021] Figure 6 The diagram shown is a cross-sectional view of the filter assembly of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Base; 201. Grinding device; 202. Grinding groove; 203. Electric push rod one; 204. Connecting rod; 205. Slider one; 206. Guide rail; 207. Fixing plate; 208. Support column one; 209. Electric push rod two; 210. Support column two; 211. Motor; 212. Long shaft; 213. Bevel gear one; 214. Bevel gear two; 215. Screw one; 216. Mounting block 1. Limiting rod 1; 2. Bevel gear 3; 2. Bevel gear 4; 2. Screw 2; 2. Mounting block 2; 2. Limiting rod 2; 2. Slider 2; 2. Baffle; 2. Slider 3; 3. Coarse filter screen; 3. Liquid storage tank; 3. Filter box; 3. Medium efficiency filter screen; 3. Fine filter screen; 3. Water pump; 3. Water pipe; 3. Support plate. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Please see Figures 1-6 This utility model provides an embodiment of a precision polishing device for the inner wall of an oil cylinder, including a base 1; it also includes a height adjustment component and a filter component. A polishing device 201 is fixedly connected to the base 1, and a polishing groove 202 is fixedly connected to one end of the base 1 away from the polishing device 201. Electric push rods 203 are fixedly connected to both ends of the base 1, and a connecting rod 204 is fixedly connected to the output end of the electric push rod 203. A slider 205 is fixedly connected to the bottom of the connecting rod 204. The electric push rod 203 is used to control the connecting rod 204 to drive the slider 205 to slide up and down. A guide rail 206 is fixedly connected to the outside of the polishing groove 202, and a guide rail 206 is fixedly connected to the top of the slider 205. A fixed plate 207 is attached to the base 1. A support column 208 is fixedly connected to the base 1. An electric push rod 209 is fixedly connected to the top of the support column 208. A slider 223 is fixedly connected to the output end of the electric push rod 209. A baffle 224 is fixedly connected to the bottom of the slider 223. A slider 225 is fixedly connected to the inside of the grinding groove 202. A filter assembly is provided at the bottom of the grinding groove 202. A height adjustment assembly is provided inside the grinding groove 202. The height adjustment assembly includes a support column 210, which is fixedly connected to the base 1. A motor 211 is fixedly connected to the top of the support column 210. The output end of the motor 211 is fixedly connected to... A long shaft 212 has a bevel gear 213 on it, which meshes with a bevel gear 214. A screw 215 is fixedly connected to the top of the bevel gear 214, and a mounting block 216 is threaded onto the screw 215. Limit rods 217 are fixedly connected to the bottom ends of the mounting block 216. A bevel gear 218 is also mounted on the long shaft 212. A motor 211 controls the rotation of the long shaft 212, driving the bevel gears 213 and 218 to rotate. A bevel gear 219 meshes with the bevel gear 219, and a screw 220 is fixedly connected to the top of the screw 220. A mounting block is threaded onto the screw 220. Mounting block 221 has two fixed ends connected to limit rods 222. When the device is working, firstly, according to the length of the oil cylinder, start the electric push rod 209 to move mounting block 221 to a suitable position. Then, place the oil cylinder on mounting block 1 216 and mounting block 221, start the electric push rod 203 to control the fixing plate 207 to move downward until the oil cylinder is fixed. Then, according to the diameter of the oil cylinder, start the motor 211 to control the vertical displacement of mounting block 1 216 and mounting block 221. After adjusting the oil cylinder axis to be aligned with the grinding head axis of the grinding device 201, inject cutting fluid into the oil cylinder, and then start the grinding device 201 to perform polishing operation.

[0025] Please see Figures 1-5In this embodiment, when slider 1 205 rises, fixed plate 207 rises; when slider 1 205 falls, fixed plate 207 falls. The arrangement of slider 1 205 facilitates the rising and falling of fixed plate 207. When slider 2 223 moves away from slider 1 205, the distance between mounting block 1 216 and mounting block 2 221 increases. The arrangement of slider 2 223 facilitates the control of the distance between mounting block 1 216 and mounting block 2 221. When screw 1 215 and screw 2 220 rotate, mounting block 1 216 and mounting block 2 221 move synchronously. The arrangement of screw 1 215 and screw 2 220 facilitates the vertical displacement of mounting block 1 216 and mounting block 2 221.

[0026] Please see Figure 6 In this embodiment, the filtration assembly includes a coarse filter screen 301, which is fixedly connected to the inner side of the grinding groove 202. A liquid storage tank 302 is fixedly connected to the bottom of the grinding groove 202. A filter box 303 is fixedly connected inside the liquid storage tank 302. A medium-efficiency filter screen 304 is fixedly connected inside the filter box 303. A fine filter screen 305 is fixedly connected inside the filter box 303. A water pump 306 is fixedly connected to the outside of the liquid storage tank 302. A water pipe 307 is fixedly connected to the output end of the water pump 306. The bottom of the water pipe 307 is fixed... With the support plate 308 connected, the hydraulic cylinder is first installed and placed. Then, the water pump 306 is turned on, and the cutting fluid in the storage tank 302 is injected into the hydraulic cylinder through the water pipe 307. Subsequently, the polishing operation is carried out. The waste liquid generated during the operation flows into the grinding tank 202 and is filtered through three layers of filters: coarse filter 301, medium-efficiency filter 304, and fine filter 305, before returning to the storage tank 302. When the water pump 306 is turned on, the cutting fluid in the storage tank 302 flows into the grinding tank 202. The setting of the water pump 306 is conducive to the circulation of the cutting fluid.

[0027] During operation, firstly, based on the length of the hydraulic cylinder, start the electric push rod 209 to move the mounting block 221 to the appropriate position. Then, place the hydraulic cylinder on the mounting block 1 216 and the mounting block 221, start the electric push rod 203 to control the fixing plate 207 to move downwards until the hydraulic cylinder is fixed. Then, based on the diameter of the hydraulic cylinder, start the motor 211 to control the vertical displacement of the mounting block 1 216 and the mounting block 221. After adjusting the hydraulic cylinder axis to be aligned with the grinding head axis of the grinding device 201, turn on the water pump 306 to inject the cutting fluid in the storage tank 302 into the hydraulic cylinder through the water pipe 307. Then, start the grinding device 201 to perform polishing operations. The waste liquid generated during the operation flows into the grinding tank 202 and is filtered through three layers of filter screens: coarse filter screen 301, medium-efficiency filter screen 304, and fine filter screen 305 before returning to the storage tank 302.

[0028] Through the above steps, firstly, based on the length of the hydraulic cylinder, the electric push rod 209 is activated to move the mounting block 221 to the appropriate position. Then, the hydraulic cylinder is placed on the mounting block 216 and the mounting block 221. The electric push rod 203 is activated to control the fixing plate 207 to move downwards until the hydraulic cylinder is fixed. Then, based on the diameter of the hydraulic cylinder, the motor 211 is activated to control the vertical displacement of the mounting block 216 and the mounting block 221. After adjusting the hydraulic cylinder axis to be aligned with the grinding head axis of the grinding device 201, cutting fluid is injected into the hydraulic cylinder. Subsequently, the grinding device 201 is started to perform polishing operations. This achieves adaptation to hydraulic cylinders of different diameters, alleviating the problem of limited applicability of traditional polishing devices. At the same time, the use of cutting fluid in conjunction with a three-stage filtration circulation system effectively reduces wear and metal shavings caused by dry cutting, improves processing accuracy, polishing quality and equipment versatility, and extends the service life of the equipment.

Claims

1. An oil cylinder inner wall precision polishing device, comprising a base (1); characterized in that: It also includes a height adjustment component and a filter component. A polishing device (201) is fixedly connected to the base (1). A polishing groove (202) is fixedly connected to one end of the base (1) away from the polishing device (201). Electric push rods (203) are fixedly connected to both ends of the base (1). A connecting rod (204) is fixedly connected to the output end of the electric push rod (203). A slider (205) is fixedly connected to the bottom of the connecting rod (204). The electric push rod (203) is used to control the connecting rod (204) to drive the slider (205) to slide up and down. The external fixed connection of the polishing groove (202) is... There is a guide rail (206), a fixed plate (207) is fixedly connected to the top of slider one (205), a support column one (208) is fixedly connected to the base (1), an electric push rod two (209) is fixedly connected to the top of support column one (208), a slider two (223) is fixedly connected to the output end of electric push rod two (209), a baffle (224) is fixedly connected to the bottom of slider two (223), a slider three (225) is fixedly connected to the inside of the grinding groove (202), a filter assembly is provided at the bottom of the grinding groove (202), and a height adjustment assembly is provided inside the grinding groove (202).

2. The device for precision polishing the inner wall of an oil cylinder according to claim 1, characterized in that: The height adjustment assembly includes a second support column (210), which is fixedly connected to the base (1). A motor (211) is fixedly connected to the top of the second support column (210). A long shaft (212) is fixedly connected to the output end of the motor (211). A bevel gear (213) is provided on the long shaft (212). A bevel gear (214) is meshed with the first bevel gear (213). A screw (215) is fixedly connected to the top of the second bevel gear (214). A mounting block (216) is threaded onto the screw (215). 16) has a limit rod 1 (217) fixedly connected to both ends of the bottom. A bevel gear 3 (218) is provided on the long shaft (212). A motor (211) is used to control the rotation of the long shaft (212) to drive the bevel gear 1 (213) and bevel gear 3 (218) to rotate. A bevel gear 4 (219) is meshed with the bevel gear 4 (219). A screw 2 (220) is fixedly connected to the top of the bevel gear 4 (219). A mounting block 2 (221) is threadedly connected to the screw 2 (220). A limit rod 2 (222) is fixedly connected to both ends of the bottom of the mounting block 2 (221).

3. The device for precision polishing the inner wall of an oil cylinder according to claim 1, characterized in that: When slider 1 (205) rises, fixed plate (207) rises; when slider 1 (205) falls, fixed plate (207) falls.

4. The device for precision polishing the inner wall of an oil cylinder according to claim 1, characterized in that: When slider 2 (223) moves away from slider 1 (205), the distance between mounting block 1 (216) and mounting block 2 (221) increases.

5. The precision polishing device for the inner wall of a hydraulic cylinder according to claim 2, characterized in that: When screw one (215) and screw two (220) rotate, mounting block one (216) and mounting block two (221) move synchronously.

6. The device for precision polishing the inner wall of an oil cylinder according to claim 1, characterized in that: The filter assembly includes a coarse filter screen (301), which is fixedly connected to the inside of the grinding tank (202). A liquid storage tank (302) is fixedly connected to the bottom of the grinding tank (202). A filter box (303) is fixedly connected inside the liquid storage tank (302). A medium-efficiency filter screen (304) is fixedly connected inside the filter box (303). A fine filter screen (305) is fixedly connected inside the filter box (303). A water pump (306) is fixedly connected to the outside of the liquid storage tank (302). A water pipe (307) is fixedly connected to the output end of the water pump (306). A support plate (308) is fixedly connected to the bottom of the water pipe (307).

7. The device for precision polishing the inner wall of an oil cylinder according to claim 6, characterized in that: When the water pump (306) is turned on, the cutting fluid in the storage tank (302) flows into the grinding groove (202).

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