Cylindrical grinding machine with high quality of cylindrical grinding

Abstract

This invention relates to the field of cylindrical grinding machine technology, specifically to a high-quality cylindrical grinding machine, comprising a machine body. The machine body has a mounting groove at its bottom, and an adjustment assembly and a drive assembly are mounted on the inner wall of the mounting groove. One side of the drive assembly and one side of the adjustment assembly are fixedly connected. Both the adjustment assembly and the drive assembly are concealed inside the machine body, not protruding from the bottom surface, thus not damaging the grinding machine's reference and not affecting the cylindrical grinding accuracy. This high-quality cylindrical grinding machine utilizes the cooperation between pulleys and a moving column. When the pulleys push the moving column to displacement, the moving column pushes a swing plate to swing. The swing of the swing plate pushes a horizontal plate, causing a roller to move longitudinally and contact the ground. At this point, the roller supports the device, thereby easily moving the machine body to a new position without relying on large forklifts or cranes for extended operations, reducing the manpower and time costs of machine body handling.

Description

Technical Field

[0001] This invention relates to the field of cylindrical grinding technology, specifically to a cylindrical grinding machine with high cylindrical grinding quality. Background Technology

[0002] As is well known, cylindrical grinding machines are key equipment in the machining field used for grinding the outer cylindrical surfaces of rotating parts such as shafts and sleeves. With their high-precision grinding capabilities, they are widely used in industries such as precision manufacturing, automotive parts, and aerospace. They are core equipment for ensuring the quality of parts processing. As industrial production continues to increase the precision requirements of parts, the demand for cylindrical grinding machines with high grinding quality is becoming increasingly urgent. Such grinding machines usually need to have stable grinding accuracy, good rigidity, and reliable operating performance.

[0003] However, existing high-quality cylindrical grinding machines typically employ heavy cast iron beds and robust core components to ensure grinding accuracy and structural rigidity. This results in a large overall size and heavy weight, causing numerous inconveniences in handling and repositioning. During equipment installation, workshop layout adjustments, or maintenance, large lifting and handling equipment such as forklifts and cranes are often required, necessitating multiple operators. This not only consumes significant manpower and time but also increases safety risks during prolonged use of forklifts and cranes, potentially causing collision damage to the workshop floor and surrounding equipment. More importantly, in actual production, to ensure grinding accuracy, fine adjustments to the grinding machine's position are often necessary to adapt to the processing requirements of different parts or to correct installation deviations. However, due to their excessive weight, existing cylindrical grinding machines are difficult to precisely adjust after initial handling with forklifts and cranes. Forced adjustments are not only cumbersome and inefficient but may also affect the grinding machine's installation accuracy due to uneven force distribution, thereby reducing the quality of cylindrical grinding and failing to meet the requirements of precision machining. Summary of the Invention

[0004] In order to overcome the problems of inconvenient movement and cumbersome position adjustment of existing cylindrical grinding machines with high external cylindrical grinding quality, the present invention provides a cylindrical grinding machine with convenient movement and high external cylindrical grinding quality.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a cylindrical grinding machine with high external grinding quality, comprising a machine body, the machine body being the main body of the cylindrical grinding machine, and an adjustment assembly, the adjustment assembly including two sets of horizontal plates and two sets of guide rods. The horizontal plates are slidably disposed inside the machine body, and the guide rods are fixedly disposed inside the machine body. Multiple sets of rollers are rotatably disposed inside the horizontal plates. When the rollers are displaced and contact the ground, the rollers will support the device, at which point the device can be easily moved. Two sets of swing plates are rotatably disposed on one side of the horizontal plates, the swing plates being inclined, and the side of the swing plates away from the horizontal plates being rotatably disposed... The machine has a movable column that is slidably mounted on the outside of a guide rod. Two sets of central shafts are slidably mounted on the outside of the guide rod, and two sets of pulleys are rotatably mounted on the outside of the central shafts. The outside of the pulleys contacts the outside of the movable column. A connecting pipe is engaged between the two sets of central shafts. A drive assembly is located inside the machine body, and one side of the drive assembly is fixed to the connecting pipe. When the adjustment assembly is activated, it needs to be used in conjunction with external lifting equipment to suspend the machine body in the air, so that the bottom of the machine body is lifted off the ground. Both the adjustment assembly and the drive assembly are hidden at the bottom of the machine body, so as not to damage the grinding machine reference and not to affect the external cylindrical grinding accuracy.

[0006] Preferably, the drive assembly includes a rotary motor and a rotating column. The rotary motor is fixedly installed inside the machine body, and the rotating column is rotatably installed inside the machine body. A first threaded tube and a second threaded tube are respectively provided at both ends of the rotating column. The end of the first threaded tube away from the rotating column is keyed to the output end of the rotary motor. A sleeve is screwed onto the outer side of both the first threaded tube and the second threaded tube. A mounting bracket is provided on both sides of the sleeve. The side of the mounting bracket away from the sleeve is fixedly installed to a connecting pipe.

[0007] Preferably, the machine body is provided with a locking assembly, which includes a placement frame and two sets of hydraulic cylinders. The placement frame and hydraulic cylinders are fixedly installed inside the machine body. Four sets of balance plates are respectively provided on both sides of the placement frame. Movable plates are slidably provided on the outer sides of the four sets of balance plates. Multiple sets of baffles are provided on the side of the movable plate away from the placement frame. A protrusion is provided on one side of the movable plate. A mounting plate is fixedly provided at the output end of the hydraulic cylinder. Two sets of connecting frames are provided on one side of the mounting plate. A top block is provided on the side of the connecting frame away from the mounting plate.

[0008] Preferably, a fixed column is rotatably provided on the side of the swing plate away from the moving column, and two sets of mounting seats are fixedly provided on the outer side of the fixed column, with the mounting seats fixedly provided on one side of the horizontal plate.

[0009] Preferably, two sets of discs are slidably arranged on the outer side of the guide rod, and two sets of fixing plates are fixedly arranged on the outer side of the two sets of guide rods, with a first spring fixedly arranged between the discs and the fixing plates.

[0010] Preferably, a limit rod is provided on one side of the horizontal plate, and a support plate is slidably provided on the outer side of the limit rod, and the support plate is fixedly installed inside the machine body.

[0011] Preferably, a fixing plate is provided on the outer side of the limiting rod, and a second spring is provided on one side of the fixing plate. The end of the second spring away from the fixing plate is fixedly disposed with the support plate.

[0012] Preferably, the roller has a movable shaft inside for rotation, and the movable shaft is fixedly installed inside the horizontal plate.

[0013] Preferably, the cross-section of the protrusion is triangular, the top block is circular, and the outer side of the top block is in contact with the protrusion.

[0014] Preferably, four sets of third springs are provided on both sides of the placement frame, and the end of the third spring away from the placement frame is fixedly installed with the movable plate.

[0015] Beneficial effects

[0016] 1. This high-quality cylindrical grinding machine, through the cooperation between the pulley and the moving column, causes the moving column to move when the pulley pushes the moving column to move. The moving column then pushes the swing plate to swing, and the swing plate will push the roller to move longitudinally and contact the ground by pushing the horizontal plate. At this time, the roller will support the device, thereby easily pushing the machine body to move in position. It does not need to rely on large forklifts or cranes for long-term operation, reducing the manpower and time costs of machine body handling.

[0017] 2. This high-quality cylindrical grinding machine, through the cooperation between the top block and the cam, allows the baffle to disengage from the horizontal plate when the top block pushes the cam to move. At this time, the roller can be easily adjusted. When the top block moves back and no longer pushes the cam, the baffle will move back and abut against the horizontal plate. At this time, the roller will be stably fixed in the current position, ensuring the adjustment of the roller. Attached Figure Description

[0018] Figure 1 This is a side view of the structure of the present invention;

[0019] Figure 2 This is a bottom view of the structure of the body of the present invention;

[0020] Figure 3 This is a cross-sectional view of the structure of the body of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the adjustment component of the present invention;

[0022] Figure 5 This is a schematic diagram of the guide rod of the present invention;

[0023] Figure 6 This is a cross-sectional view of the horizontal plate of the present invention;

[0024] Figure 7 This is a schematic diagram of the structure of the driving component of the present invention;

[0025] Figure 8 This is a partial structural cross-sectional view of the body of the present invention;

[0026] Figure 9 This is a schematic diagram of the locking component of the present invention;

[0027] Figure 10 This is a cross-sectional view of the structure of the movable plate of the present invention.

[0028] In the diagram: 1. Body; 2. Adjustment assembly; 201. Horizontal plate; 202. Swing plate; 203. Fixed plate; 204. Connecting pipe; 205. First spring; 206. Disc; 207. Moving column; 208. Central shaft; 209. Pulley; 210. Guide rod; 211. Limiting rod; 212. Fixed disc; 213. Second spring; 214. Fixed column; 215. Movable shaft; 216. Mounting base; 217. Roller; 218. 3. Support plate; 4. Drive assembly; 5. Rotary motor; 6. First threaded tube; 7. Sleeve; 8. Rotating column; 9. Mounting bracket; 10. Second threaded tube; 11. Locking assembly; 12. Placement bracket; 13. Movable plate; 14. Baffle; 15. Connecting bracket; 16. Hydraulic cylinder; 27. Mounting plate; 38. Top block; 49. Protrusion; 400. Balance plate; 201. Third spring; 202. Mounting groove. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] See Figures 1-10 A cylindrical grinding machine with high external cylindrical grinding quality includes a machine body 1. The machine body 1 is an external cylindrical grinding machine. A mounting groove 5 is provided at the bottom of the machine body 1. An adjustment component 2 and a drive component 3 are provided on the inner wall of the mounting groove 5. One side of the drive component 3 is fixedly connected to one side of the adjustment component 2. The adjustment component 2 and the drive component 3 are both hidden inside the machine body 1, do not protrude from the bottom surface of the machine body 1, do not damage the grinding machine reference, and do not affect the external cylindrical grinding accuracy.

[0031] First, refer to Figures 2 to 7In this embodiment, the adjustment assembly 2 includes two sets of horizontal plates 201 and two sets of guide rods 210. The horizontal plates 201 are slidably connected inside the mounting groove 5. Four sets of movable shafts 215 are fixedly connected inside the horizontal plates 201. Rollers 217 are rotatably connected to the outer sides of the movable shafts 215. Four sets of mounting seats 216 are fixedly connected to one side of the horizontal plates 201. A fixed column 214 is fixedly connected between two sets of mounting seats 216. A swing plate 202 is rotatably connected to the outer side of the fixed column 214. The swing plate 202 is inclined. A moving column 207 is rotatably connected to the side of the swing plate 202 away from the fixed column 214. The guide rods 210 are fixedly connected to the inner wall of the mounting groove 5 and the moving column 207 is rotatably connected to the side away from the fixed column 214. The moving column 207 is slidably connected to the outside of the guide rod 210. Two sets of central shafts 208 are slidably connected to the outside of the guide rod 210. Two sets of pulleys 209 are rotatably connected to the outside of the central shafts 208. The outside of the pulleys 209 is in contact with the outside of the moving column 207. A connecting pipe 204 is snapped between the two sets of symmetrically arranged central shafts 208. The outside of the connecting pipe 204 is fixedly connected to one side of the drive assembly 3. This adjustment assembly 2 is only used to drive the rollers 217 to extend and retract. It does not have the function of lifting the machine body 1. When using it, it is necessary to cooperate with external lifting equipment to keep the machine body 1 suspended in the air. After the rollers 217 are retracted, the bottom of the machine body 1 remains flat and does not affect the external cylindrical grinding machining accuracy.

[0032] Specifically, in order to enable the moving column 207 to move back quickly, two sets of fixed plates 203 are fixedly connected between the two sets of guide rods 210. A disc 206 is slidably connected to the outside of the guide rods 210, and a first spring 205 is fixedly connected between the disc 206 and the fixed plate 203. Thus, when the moving column 207 is pushed, the disc 206 will be squeezed by one side of the swing plate 202. At this time, the first spring 205 will be squeezed by the disc 206. When the moving column 207 is no longer pushed, the first spring 205 will bounce one side of the swing plate 202 and the moving column 207 back quickly by bouncing the disc 206 back.

[0033] Specifically, in order to maintain the balance of the horizontal plate 201, two sets of support plates 218 are fixedly connected to the inner wall of the mounting groove 5. The support plates 218 are slidably connected to limit rods 211, and one end of the limit rods 211 is fixedly connected to the horizontal plate 201. Thus, on the one hand, the limit rods 211 maintain the balance of the horizontal plate 201 during movement, preventing the horizontal plate 201 from becoming unbalanced and swaying during movement, and ensuring the normal displacement of the horizontal plate 201. On the other hand, the limit rods 211 restrict the direction of the horizontal plate 201, preventing the device from failing due to misalignment of the horizontal plate 201, and ensuring the normal use of the device.

[0034] Meanwhile, in order to enable the roller 217 to quickly return to the body 1, a fixed plate 212 is fixedly connected to the outside of the limiting rod 211, and a second spring 213 is fixedly connected between the fixed plate 212 and the support plate 218. Thus, when the horizontal plate 201 is pushed, the second spring 213 will be squeezed by the fixed plate 212. When the horizontal plate 201 is no longer pushed, the second spring 213 will bounce the limiting rod 211 and the horizontal plate 201 back by bouncing the fixed plate 212 back. The back movement of the horizontal plate 201 will drive the roller 217 to quickly return to the inside of the body 1.

[0035] When the connecting pipe 204 is pushed, it causes the symmetrically arranged central shafts 208 on both sides to slide horizontally along the guide rod 210. The pulleys 209 on the outer side of the central shafts 208 move synchronously with them. At this time, the pulleys 209 will exert a thrust on the moving column 207, causing the moving column 207 to slide horizontally along the guide rod 210. During the sliding process, the moving column 207 will push the swing plate 202 to swing downward around the fixed column 214. At this time, the fixed column 214 will push the horizontal plate 201 to move vertically downward along the mounting groove 5 by pushing the mounting base 216, thereby causing... The horizontal plate 201 drives the roller 217 to extend downward from the machine body 1 by pushing the movable shaft 215. At the same time, the side of the swing plate 202 presses the disc 206, pushing the disc 206 to slide along the guide rod 210 and compress the first spring 205. The horizontal plate 201 drives the limiting rod 211 to slide vertically downward along the support plate 218. The limiting rod 211 forms a linear guide and radial limit for the horizontal plate 201, restricting the horizontal plate 201 to move only in the vertical direction to prevent it from deviating or shaking. The fixed plate 212 moves down synchronously with the limiting rod 211 and compresses the second spring 213.

[0036] When the thrust on the connecting pipe 204 disappears, the first spring 205 elastically resets, horizontally pushes the disc 206 back, and the disc 206 pushes the swing plate 202 in the opposite direction to swing and reset, causing the moving column 207 to slide horizontally along the guide rod 210 to reset. The second spring 213 synchronously resets elastically, vertically pushes the fixed plate 212 upward, and causes the limit rod 211 and the horizontal plate 201 to move vertically upward, finally causing the roller 217 to be completely retracted into the machine body 1, and the bottom of the machine body 1 remains flat.

[0037] This high-quality cylindrical grinding machine, through the cooperation between the pulley 209 and the moving column 207, causes the moving column 207 to swing when the pulley 209 pushes the moving column 207 to move. The swing of the moving column 202 will push the roller 217 to move longitudinally and contact the ground by pushing the horizontal plate 201. At this time, the roller 217 will support the device, thereby easily moving the machine body 1 to achieve position movement without relying on large forklifts or cranes for long-term operation, reducing the manpower and time costs of handling the machine body 1.

[0038] Then, refer to Figure 2 and Figure 7 In this embodiment, the drive assembly 3 includes a rotary motor 301 and a rotating column 304. The rotary motor 301 is fixedly mounted on the inner wall of the mounting groove 5. The rotary motor 301 is a bidirectional motor, and its output end can rotate forward or backward. The rotating column 304 is rotatably mounted inside the machine body 1. A first threaded tube 302 and a second threaded tube 306 are respectively provided at both ends of the rotating column 304. The threads on the outer sides of the first threaded tube 302 and the second threaded tube 306 are in opposite directions. The end of the first threaded tube 302 away from the rotating column 304 is keyed to the output end of the rotary motor 301. A sleeve 303 is screwed onto the outer side of both the first threaded tube 302 and the second threaded tube 306. Mounting brackets 305 are provided on both sides of the sleeve 303. The side of the mounting bracket 305 away from the sleeve 303 is fixedly installed with the connecting pipe 204. After the rotary motor 301 is turned on, the output end of the rotary motor 301 will drive the first threaded pipe 302 to rotate. The rotation of the first threaded pipe 302 will drive the second threaded pipe 306 to rotate by driving the rotating column 304. The rotation of the first threaded pipe 302 and the second threaded pipe 306 will drive the two sets of sleeves 303 to move linearly. The displacement of the sleeves 303 will push the mounting bracket 305 to move horizontally. The displacement of the mounting bracket 305 will push the connecting pipe 204 to move, providing driving force for the adjustment component 2.

[0039] Finally, see Figure 2 , Figure 3 , Figure 8 , Figure 9 and Figure 10In this embodiment, a locking assembly 4 is provided on the inner wall of the mounting groove 5. The locking assembly 4 includes a placement frame 401 and two sets of hydraulic cylinders 405. The placement frame 401 and the hydraulic cylinders 405 are both fixedly installed inside the machine body 1. Four sets of balance plates 409 are respectively provided on both sides of the placement frame 401. A movable plate 402 is slidably provided on the outer side of the four sets of balance plates 409. Four sets of third springs 410 are respectively provided on both sides of the placement frame 401. The end of the third spring 410 away from the placement frame 401 is fixedly installed with the movable plate 402. Multiple sets of baffles 403 are provided on the side of the movable plate 402 away from the placement frame 401. A mounting plate 406 is fixedly mounted on the output end of a hydraulic cylinder 405, which has a protrusion 408. Two sets of connecting brackets 404 are mounted on one side of the mounting plate 406. A top block 407 is mounted on the side of the connecting brackets 404 away from the mounting plate 406. The protrusion 408 has a triangular cross-section, and the top block 407 is circular. The outer side of the top block 407 contacts the protrusion 408. The top block 407 contacts the side of the horizontal plate 201 away from the swing plate 202. At this time, the top block 407 will block the horizontal plate 201, preventing it from detaching from the mounting groove 5. After the hydraulic cylinder 405 is opened, the output end of the hydraulic cylinder 405 will push the mounting plate 406 to move horizontally. The displacement of 06 will push the top block 407 to move by pushing the connecting frame 404. The displacement of the top block 407 will push the movable plate 402 to move by pushing the protrusion 408 to move horizontally. The displacement of the movable plate 402 will push the baffle 403 to move and disengage from the horizontal plate 201. At this time, the horizontal plate 201 is no longer blocked and can move vertically up and down smoothly along the mounting groove 5 to realize the extension and retraction of the roller 217. During this process, the movable plate 402 slides horizontally along the outside of the balance plate 409. The balance plate 409 plays a guiding and limiting role for the movable plate 402, restricting the movable plate 402 to only move horizontally and preventing it from deviating. The movement and tilting ensure that the baffle 403 can accurately disengage from the horizontal plate 201. At the same time, the third spring 410 is compressed by the movable plate 402 and is in an energy storage state. After the horizontal plate 201 moves and disengages from the mounting groove 5, the output end of the control hydraulic cylinder 405 pushes the mounting plate 406 back. At this time, the pushing force of the top block 407 on the protrusion 408 disappears, the third spring 410 elastically resets, and pulls the movable plate 402 to move along the balance plate 409 to the initial position. The movable plate 402 also drives the baffle 403 to move back until the baffle 403 is located at the top of the horizontal plate 201, which again forms a blocking limit on the horizontal plate 201, further ensuring the operation of the roller 217.

[0040] This high-quality cylindrical grinding machine utilizes the cooperation between the top block 407 and the protrusion 408. When the top block 407 pushes the protrusion 408 to move, the baffle 403 will disengage from the horizontal plate 201, allowing the roller 217 to be easily adjusted. When the top block 407 moves back and no longer pushes the protrusion 408, the baffle 403 will move back and press against the horizontal plate 201, ensuring that the roller 217 is stably fixed in its current position, thus guaranteeing the adjustment of the roller 217.

[0041] Working principle:

[0042] In use, the machine body 1 is suspended in the air by an external lifting device, and then the hydraulic cylinder 405 is activated so that its output end pushes the mounting plate 406 to move horizontally. The displacement of the mounting plate 406 will push the top block 407 to move by pushing the connecting frame 404. The displacement of the top block 407 will push the movable plate 402 to move by pushing the protrusion 408 to move horizontally. The displacement of the movable plate 402 will push the baffle 403 to move and disengage from the horizontal plate 201. At this time, the horizontal plate 201 is no longer blocked.

[0043] Then, the rotary motor 301 is turned on so that its output end drives the first threaded tube 302 to rotate. The rotation of the first threaded tube 302 will drive the second threaded tube 306 to rotate by driving the rotating column 304. The rotation of the first threaded tube 302 and the second threaded tube 306 will drive the two sets of sleeves 303 to move linearly. The displacement of the sleeves 303 will push the mounting bracket 305 to move horizontally. The displacement of the mounting bracket 305 will push the connecting tube 204 to move, providing driving force for the adjustment component 2.

[0044] When the connecting pipe 204 is pushed, it causes the central shafts 208, which are symmetrically arranged on both sides, to slide horizontally along the guide rod 210. The pulleys 209 on the outer side of the central shafts 208 move synchronously with them. At this time, the pulleys 209 will exert a thrust on the moving column 207, causing the moving column 207 to slide horizontally along the guide rod 210. During the sliding process, the moving column 207 will push the swing plate 202 to swing downward around the fixed column 214. At this time, the fixed column 214 will push the horizontal plate 201 to move vertically downward along the mounting groove 5 by pushing the mounting seat 216, thereby causing the horizontal plate 201 to drive the roller by pushing the movable shaft 215. Roller 217 extends downwards from the machine body 1. Then, the output end of the hydraulic cylinder 405 pushes the mounting plate 406 back. At this time, the pushing force of the top block 407 on the protrusion 408 disappears, the third spring 410 elastically resets, and pulls the movable plate 402 to move along the balance plate 409 to the initial position. Simultaneously, the movable plate 402 drives the baffle 403 back until the baffle 403 is located at the top of the horizontal plate 201, which again forms a blocking limit on the horizontal plate 201, further ensuring the operation of roller 217. After the external lifting equipment lowers the machine body 1, roller 217 will contact the ground and support the device. At this time, the machine body 1 can be moved conveniently.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cylindrical grinding machine with high external cylindrical grinding quality, characterized in that, include: Body (1); Adjustment component (2), the adjustment component (2) includes two sets of horizontal plates (201) and two sets of guide rods (210). The horizontal plates (201) are slidably disposed inside the machine body (1). The guide rods (210) are fixedly disposed inside the machine body (1). Multiple sets of rollers (217) are rotatably disposed inside the horizontal plates (201). Two sets of swing plates (202) are rotatably disposed on one side of the horizontal plates (201). A moving column (207) is rotatably disposed on the side of the swing plates (202) away from the horizontal plates (201). The moving column (207) is slidably disposed on the outside of the guide rods (210). Two sets of central shafts (208) are slidably disposed on the outside of the guide rods (210). Two sets of pulleys (209) are rotatably disposed on the outside of the central shafts (208). A connecting pipe (204) is snapped between the two sets of central shafts (208). The drive assembly (3) is located inside the body (1), and one side of the drive assembly (3) and the connecting pipe (204) are fixedly installed. When the adjustment component (2) is activated, it needs to be used in conjunction with external lifting equipment to keep the machine body (1) suspended in the air so that the bottom of the machine body (1) is lifted off the ground; The adjustment component (2) and the drive component (3) are both hidden at the bottom of the machine body (1), which does not damage the grinding machine reference and does not affect the external cylindrical grinding accuracy.

2. The cylindrical grinding machine with high external cylindrical grinding quality according to claim 1, characterized in that, The drive assembly (3) includes a rotary motor (301) and a rotating column (304). The rotary motor (301) is fixedly installed inside the machine body (1), and the rotating column (304) is rotatably installed inside the machine body (1). The two ends of the rotating column (304) are respectively provided with a first threaded tube (302) and a second threaded tube (306). The end of the first threaded tube (302) away from the rotating column (304) is keyed to the output end of the rotary motor (301). The outer sides of the first threaded tube (302) and the second threaded tube (306) are both screwed with sleeves (303). The two sides of the sleeves (303) are provided with mounting brackets (305). The side of the mounting bracket (305) away from the sleeves (303) is fixedly installed with the connecting pipe (204).

3. The cylindrical grinding machine with high external cylindrical grinding quality according to claim 1, characterized in that, The machine body (1) is provided with a locking assembly (4). The locking assembly (4) includes a placement frame (401) and two sets of hydraulic cylinders (405). The placement frame (401) and the hydraulic cylinders (405) are fixedly installed inside the machine body (1). Four sets of balance plates (409) are respectively provided on both sides of the placement frame (401). Movable plates (402) are slidably provided on the outer side of the four sets of balance plates (409). Multiple sets of baffles (403) are provided on the side of the movable plate (402) away from the placement frame (401). A protrusion (408) is provided on one side of the movable plate (402). A mounting plate (406) is fixedly provided at the output end of the hydraulic cylinder (405). Two sets of connecting frames (404) are provided on one side of the mounting plate (406). A top block (407) is provided on the side of the connecting frame (404) away from the mounting plate (406).

4. The cylindrical grinding machine with high external cylindrical grinding quality according to claim 1, characterized in that, A fixed column (214) is rotatably provided on the side of the swing plate (202) away from the moving column (207). Two sets of mounting seats (216) are fixedly provided on the outer side of the fixed column (214). The mounting seats (216) are fixedly provided on one side of the horizontal plate (201).

5. The cylindrical grinding machine with high external cylindrical grinding quality according to claim 1, characterized in that, Two sets of discs (206) are slidably arranged on the outer side of the guide rod (210), and two sets of fixing plates (203) are fixedly arranged on the outer side of the two sets of guide rods (210), and a first spring (205) is fixedly arranged between the discs (206) and the fixing plates (203).

6. The cylindrical grinding machine with high external cylindrical grinding quality according to claim 1, characterized in that, A limit rod (211) is provided on one side of the horizontal plate (201), and a support plate (218) is slidably provided on the outside of the limit rod (211). The support plate (218) is fixedly installed inside the body (1).

7. The cylindrical grinding machine with high external cylindrical grinding quality according to claim 6, characterized in that, A fixing plate (212) is provided on the outside of the limiting rod (211), and a second spring (213) is provided on one side of the fixing plate (212). The end of the second spring (213) away from the fixing plate (212) is fixedly set with the support plate (218).

8. The cylindrical grinding machine with high external cylindrical grinding quality according to claim 1, characterized in that, The roller (217) is provided with a movable shaft (215) for internal rotation, and the movable shaft (215) is fixedly installed inside the horizontal plate (201).

9. The cylindrical grinding machine with high external cylindrical grinding quality according to claim 3, characterized in that, The cross-section of the protrusion (408) is triangular, the top block (407) is circular, and the outer side of the top block (407) is in contact with the protrusion (408).

10. The high-quality cylindrical grinding machine according to claim 3, characterized in that, Four sets of third springs (410) are respectively provided on both sides of the placement rack (401), and the end of the third spring (410) away from the placement rack (401) is fixedly set with the movable plate (402).

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