A cylinder liner polishing apparatus for an internal combustion engine

Abstract

The application discloses a kind of cylinder liner polishing equipment of internal combustion engine, it is related to polishing equipment technical field, including workbench and cylinder liner body, the upper surface of the workbench is fixedly connected with support, further include: set in the surface of the support, for the polishing structure of the inner wall and outer wall of cylinder liner body simultaneously polishing, the polishing structure includes with support rotationally connected rotation plate, for the drive roller of cylinder liner body is supported, for driving drive roller rotation belt, for the inner polishing roller of the inner wall of cylinder liner body is polished, for the outer polishing roller of the outer wall of cylinder liner body is polished, fixedly installed in the mounting frame of rotation plate side, this internal combustion engine cylinder liner polishing equipment, by setting polishing structure, utilize inner polishing roller and outer polishing roller cooperation can simultaneously polish the inner wall and outer wall of cylinder liner body, to improve the polishing efficiency of cylinder liner body, to improve the practicability of polishing equipment.

Description

Technical Field

[0001] This invention relates to the field of polishing equipment technology, specifically to a polishing equipment for internal combustion engine cylinder liners. Background Technology

[0002] An internal combustion engine cylinder liner is a component of an internal combustion engine with a cylindrical structure. The cylinder liner can be inserted into the internal combustion engine body, and its inner wall forms the working surface of the cylinder. Together with the cylinder head and piston, it forms the combustion chamber. During the production and processing of the cylinder liner, the inner and outer walls of the cylinder liner need to be polished to ensure that the cylinder inside the cylinder liner can work normally.

[0003] In the existing technology, the polishing device mainly consists of a base plate, a moving component, a support plate, a clamping component, a lifting component, and a polishing component. When using the polishing device, the moving component drives the two sets of support plates to move in opposite directions. The support plates drive the clamping component to clamp the cylinder liner. The clamping component fixes the position of the cylinder liner, thus achieving stable clamping of the cylinder liner. Then, the cylinder liner can be polished.

[0004] Regarding the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: when polishing the cylinder liner of an internal combustion engine using the above-mentioned polishing equipment, the inner wall and outer wall of the cylinder liner can only be polished one by one, which results in low working efficiency of the polishing equipment and reduces its practicality.

[0005] Therefore, we propose a polishing device for internal combustion engine cylinder liners. Summary of the Invention

[0006] The purpose of this invention is to provide an internal combustion engine cylinder liner polishing device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an internal combustion engine cylinder liner polishing device, comprising a worktable and a cylinder liner body, wherein a support is fixedly connected to the upper surface of the worktable, and further comprising: a polishing structure disposed on the surface of the support for simultaneously polishing the inner and outer walls of the cylinder liner body, the polishing structure comprising a rotating plate rotatably connected to the support, a drive roller for supporting the cylinder liner body, a belt for driving the drive roller to rotate, an inner polishing roller for polishing the inner wall of the cylinder liner body, an outer polishing roller for polishing the outer wall of the cylinder liner body, and a mounting frame fixedly installed on one side of the rotating plate; a limiting structure disposed on the outer wall of the mounting frame for preventing the cylinder liner body from slipping, the limiting structure comprising a strip rod fixedly installed on the outer wall of the mounting frame and a pressure roller for limiting the cylinder liner body; and an adjusting structure disposed on the surface of the strip rod for adjusting the belt tension, the adjusting structure comprising a third electric push rod fixedly installed on the surface of the strip rod and a tensioning wheel for squeezing the belt.

[0008] The aforementioned components achieve the following effects: By setting up a polishing structure, the inner and outer walls of the cylinder liner body can be polished simultaneously using the inner and outer polishing rollers, thereby improving the polishing efficiency of the cylinder liner body and enhancing the practicality of the polishing equipment. By setting up a limiting structure, the position of the cylinder liner body can be restricted during the polishing process, preventing the cylinder liner body from slipping off the arc surface of the drive roller, thus ensuring normal polishing of the cylinder liner body. By setting up an adjustment structure, the tension of the belt can be adjusted as needed during the adjustment of the drive roller position, ensuring that the belt can work normally.

[0009] Preferably, a servo motor is fixedly connected to the outer wall of the mounting frame, a bidirectional lead screw is rotatably connected to the inner wall of the mounting frame, the output end of the servo motor is fixedly connected to the bidirectional lead screw, two rectangular blocks are threaded to the arc surface of the bidirectional lead screw, the rectangular blocks are slidably connected to the mounting frame, the drive roller is rotatably connected to the rectangular blocks, the cylinder liner body is slidably connected to the drive roller, a fixed plate is fixedly connected to the lower surface of the mounting frame, a rotating rod is rotatably connected inside the fixed plate, a support plate is fixedly connected to one end of the rotating rod, a convex gear is rotatably connected to the surface of the support plate, an outer grinding roller is detachably mounted on the surface of the convex gear, a concave gear is rotatably connected to the surface of the support plate, an inner grinding roller is detachably mounted on the surface of the concave gear, the tooth surface of the convex gear meshes with the tooth surface of the concave gear, a drive motor is fixedly connected to the surface of the support plate, the output end of the drive motor is fixedly connected to the convex gear, a first electric push rod is rotatably connected to the lower surface of the mounting frame, a transmission plate is rotatably connected to the output end of the first electric push rod, the transmission plate is fixedly connected to the rotating rod, and a belt is sleeved on the arc surface of the convex gear and the drive roller.

[0010] The aforementioned components achieve the following effect: The cylinder liner body is placed on the arc surface of the two drive rollers. Then, the servo motor is started. The output of the servo motor drives the bidirectional lead screw to rotate. The rotation of the bidirectional lead screw, via its thread, causes two rectangular blocks to slide away from each other along the inner wall of the mounting frame. The mounting frame restricts the sliding path of the rectangular blocks. The sliding of the rectangular blocks causes the drive rollers to slide. At this time, the two drive rollers support the cylinder liner body, thereby adjusting the height of the cylinder liner body and moving it to a suitable position. After adjusting the height of the cylinder liner body, the servo motor is turned off. Then, the output of the first electric actuator is extended. The output of the first electric actuator drives the transmission plate to rotate. The rotating rod, via the transmission plate, drives the support plate to rotate. The rotation of the support plate drives the cam gear and the concave gear to rotate. The cam gear and the concave gear respectively drive... The outer and inner grinding rollers rotate until the outer grinding roller abuts against the outer wall of the cylinder liner body and the inner grinding roller abuts against the inner wall of the cylinder liner body. By rotating the support plate, the outer and inner grinding rollers can also abut against the inner and outer walls of the cylinder liner body with different thicknesses. Then, the drive motor is started. The output end of the drive motor rotates, which drives the cam gear to rotate. The cam gear rotates, which in turn drives the concave gear to rotate. At this time, the outer and inner grinding rollers, driven by the cam and concave gears, will simultaneously grind the outer and inner walls of the cylinder liner body, thereby greatly improving the grinding efficiency. When the cam gear rotates, it will also drive the belt to move. The belt movement will drive the drive roller to rotate, which will drive the cylinder liner body to rotate. At this time, the sliding directions of the contact points between the cylinder liner body and the outer and inner grinding rollers are opposite, thereby further improving the polishing efficiency of the cylinder liner body.

[0011] Preferably, a retaining ring is fixedly connected to the arc surface of the drive roller. The retaining ring has an inner core and an outer core. The inner core of the retaining ring is made of iron, and the outer core of the retaining ring is made of rubber. The outer core of the retaining ring wraps around the surface of the inner core.

[0012] The effect achieved by the above components is that the cylinder liner body slides along the arc surface of the drive roller and comes into contact with the retaining ring, and the retaining ring restricts the position of the cylinder liner body.

[0013] Preferably, the surface of the bracket is rotatably connected to two second electric actuators, and the output end of the second electric actuators is rotatably connected to the rotating plate.

[0014] The above components achieve the following effects: the output end of the second electric actuator extends, and the output end of the second electric actuator drives the rotating plate to rotate. When the rotating plate rotates, it drives the mounting frame to rotate. The rectangular block drives the drive roller to rotate by means of the mounting frame. The state of the drive roller can be adjusted by means of the second electric actuator, so as to facilitate the placement of the cylinder liner body on the arc surface of the drive roller.

[0015] Preferably, the surface of the strip rod is slidably fitted with a sliding sleeve, the pressure roller is rotatably connected to the sliding sleeve, the upper surface of the sliding sleeve is threaded with a screw, one end of the strip rod is rotatably connected to a rotating block, the size of the rotating block is adapted to the size of the sliding sleeve, and the end of the rotating block away from the strip rod is provided with an annular protrusion along the axial direction.

[0016] The effect achieved by the above components is as follows: the sliding sleeve slides from the surface of the rotating block to the surface of the strip rod. The sliding of the sliding sleeve will drive the pressure roller to slide. The sliding of the pressure roller will contact the cylinder liner body. At this time, the pressure roller will restrict the position of the cylinder liner body. Then, the screw is rotated, and the screw will restrict the position of the sliding sleeve and thus restrict the position of the pressure roller.

[0017] Preferably, the strip bar has an alignment groove on the side near the rotating block, a positioning rod is fixedly connected to the surface of the rotating block, the size of the positioning rod is adapted to the size of the alignment groove, and the strip bar has a misalignment groove on the side near the rotating block.

[0018] The above components achieve the following effect: when the positioning rod rotates to the inner wall of the alignment groove, the rotating block will align with the positioning rod. At this time, the sliding sleeve can slide normally along the surface of the rotating block and the strip rod. When the positioning rod rotates to the inner wall of the misalignment groove, the rotating block will misalign with the strip rod. At this time, it can prevent the sliding sleeve from sliding from the surface of the rotating block to the surface of the strip rod.

[0019] Preferably, the upper surface of the bar is provided with an inclined groove, and the vertical cross-section of the inclined groove is triangular.

[0020] The effect achieved by the above-mentioned components is that the inclined groove with a vertical cross-section in the shape of a triangle can prevent the screw from sliding along the inner wall of the inclined groove towards the rotating block, thereby further improving the limiting effect of the screw.

[0021] Preferably, the output end of the third electric actuator is fixedly connected to a square rod, the lower end of the square rod is fixedly connected to a pressure plate, a square frame is slidably fitted on the surface of the square rod, the tension wheel is rotatably connected to the square frame, the belt is fitted on the arc surface of the tension wheel, and the pressure plate is located inside the square frame.

[0022] The above components achieve the following effect: the output end of the third electric actuator extends, and the square rod extends by means of the output end of the third electric actuator, which drives the pressure plate to move. The movement of the pressure plate will press against the inner wall of the square frame and drive the square frame to move synchronously. The movement of the square frame will drive the tension wheel to move, and the movement of the tension wheel will tighten the belt, thereby achieving the purpose of adjusting the belt tension.

[0023] Preferably, a spring is fitted onto the surface of the square rod, and the two ends of the spring are fixedly connected to the pressure plate and the square frame, respectively.

[0024] The effect achieved by the above components is that when the two rectangular blocks move toward each other, the belt will loosen, and the spring will automatically extend to make the tensioner pulley tighten the belt again, thereby preventing the belt from slipping off the surface of the cam gear.

[0025] Preferably, two limiting plates are fixedly connected to the outer wall of the frame, and the limiting plates are slidably connected to the strip rod.

[0026] The effect achieved by the above components is that the sliding of the square frame will cause the limiting plate to slide along the surface of the strip rod, and the limiting plate will restrict the movement path of the square frame, thereby restricting the movement path of the tensioning wheel.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] This invention improves the polishing efficiency of the cylinder liner body by setting up a polishing structure and using the cooperation of inner and outer polishing rollers to polish both the inner and outer walls of the cylinder liner body simultaneously, thereby enhancing the practicality of the polishing equipment.

[0029] By setting a limiting structure, this invention can restrict the position of the cylinder liner body during the polishing process, preventing the cylinder liner body from slipping off the arc surface of the drive roller, thereby enabling the cylinder liner body to be polished normally.

[0030] By setting an adjustment structure, this invention can adjust the belt tension as needed during the adjustment of the drive roller position, ensuring that the belt can work normally. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 This is a schematic diagram of the structure of the bracket in this invention;

[0033] Figure 3 For the present invention Figure 2 A structural diagram from another angle;

[0034] Figure 4 For the present invention Figure 3 A partial structural diagram;

[0035] Figure 5 This is a partial structural diagram of the mounting frame of the present invention;

[0036] Figure 6 This is a schematic diagram of a partial cross-sectional structure of the cylinder liner body of the present invention;

[0037] Figure 7 This is a partial structural diagram of the bar section of the present invention;

[0038] Figure 8 This is a partial disassembly diagram of the bar section of the present invention;

[0039] Figure 9 This is a schematic diagram of the adjustment structure of the present invention.

[0040] In the diagram: 1-Workbench; 2-Cylinder liner body; 3-Bracket; 4-Polishing structure; 401-Rotating plate; 402-Mounting frame; 403-Servo motor; 404-Double-actuated lead screw; 405-Rectangular block; 406-Drive roller; 407-Retaining ring; 408-Fixing plate; 409-Rotating rod; 410-Support plate; 411-Piercing gear; 412-Outer grinding roller; 413-Concave gear; 414-Inner grinding roller; 415-Drive motor; 4 16-Belt; 417-First electric push rod; 418-Transmission plate; 419-Second electric push rod; 5-Limiting structure; 51-Strip rod; 52-Sliding sleeve; 53-Pressure roller; 54-Screw; 55-Rotating block; 56-Alignment groove; 57-Positioning rod; 58-Misalignment groove; 59-Inclined groove; 6-Adjusting structure; 61-Third electric push rod; 62-Square rod; 63-Pressure plate; 64-Square frame; 65-Tensioning wheel; 66-Spring; 67-Limiting plate. Detailed Implementation

[0041] 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.

[0042] Please see Figure 1-9This invention provides a technical solution: an internal combustion engine cylinder liner polishing device, including a worktable 1 and a cylinder liner body 2. A support 3 is fixedly connected to the upper surface of the worktable 1. The device also includes: a polishing structure 4 disposed on the surface of the support 3 for simultaneously polishing the inner and outer walls of the cylinder liner body 2. The polishing structure 4 includes a rotating plate 401 rotatably connected to the support 3, a drive roller 406 for supporting the cylinder liner body 2, a belt 416 for driving the drive roller 406 to rotate, an inner grinding roller 414 for polishing the inner wall of the cylinder liner body 2, and a polishing belt 415 for polishing the cylinder liner body. The cylinder liner body 2 is polished by an outer polishing roller 412 and a mounting frame 402 fixedly installed on one side of the rotating plate 401. A limiting structure 5 is set on the outer wall of the mounting frame 402 to prevent the cylinder liner body 2 from slipping. The limiting structure 5 includes a strip rod 51 fixedly installed on the outer wall of the mounting frame 402 and a pressure roller 53 for limiting the cylinder liner body 2. An adjusting structure 6 is set on the surface of the strip rod 51 to adjust the tension of the belt 416. The adjusting structure 6 includes a third electric push rod 61 fixedly installed on the surface of the strip rod 51 and a tensioning wheel 65 for squeezing the belt 416.

[0043] The specific settings and functions of its polishing structure 4, limiting structure 5, and adjusting structure 6 will be discussed below.

[0044] like Figure 2-6As shown, a servo motor 403 is fixedly connected to the outer wall of the mounting frame 402, and a bidirectional lead screw 404 is rotatably connected to the inner wall of the mounting frame 402. The output end of the servo motor 403 is fixedly connected to the bidirectional lead screw 404. Two rectangular blocks 405 are threadedly connected to the arc surface of the bidirectional lead screw 404. The rectangular blocks 405 are slidably connected to the mounting frame 402. The drive roller 406 is rotatably connected to the rectangular blocks 405. The cylinder liner body 2 is slidably connected to the drive roller 406. A fixing plate 408 is fixedly connected to the lower surface of the mounting frame 402. A rotating rod 409 is rotatably connected inside the fixing plate 408. A support plate 410 is fixedly connected to one end of the rotating rod 409. A cam gear 411 is rotatably connected to the surface of the support plate 410. The outer grinding roller 412 is detachable. A cam gear 411 is detachably mounted on the surface of a support plate 410, and a concave gear 413 is rotatably connected to the surface of the support plate 410. An inner grinding roller 414 is detachably mounted on the surface of the concave gear 413. The tooth surfaces of the cam gear 411 and the concave gear 413 mesh. A drive motor 415 is fixedly connected to the surface of the support plate 410, and the output end of the drive motor 415 is fixedly connected to the cam gear 411. A first electric push rod 417 is rotatably connected to the lower surface of the mounting frame 402, and a transmission plate 418 is rotatably connected to the output end of the first electric push rod 417. The transmission plate 418 is fixedly connected to the rotating rod 409. A belt 416 is sleeved on the arc surfaces of the cam gear 411 and the drive roller 406. The cylinder liner body 2 is placed on the arc surfaces of the two drive rollers 406. Next, the servo motor 403 is started. The output of the servo motor 403 drives the bidirectional lead screw 404 to rotate. The rotation of the bidirectional lead screw 404, through the thread, drives the two rectangular blocks 405 to slide away from each other along the inner wall of the mounting frame 402. The mounting frame 402 restricts the sliding path of the rectangular blocks 405. The sliding of the rectangular blocks 405 drives the drive rollers 406 to slide. At this time, the two drive rollers 406 support the cylinder liner body 2, thereby adjusting the height of the cylinder liner body 2 and moving it to a suitable position. After adjusting the height of the cylinder liner body 2, the servo motor 403 is turned off. Then, the output of the first electric actuator 417 is extended. The output of the first electric actuator 417 drives the transmission plate 418. Rotating the lever 409, the transmission plate 418 rotates, causing the support plate 410 to rotate. The rotation of the support plate 410 drives the cam gear 411 and the concave gear 413 to rotate. The cam gear 411 and the concave gear 413 then drive the outer grinding roller 412 and the inner grinding roller 414 to rotate, respectively, until the outer grinding roller 412 abuts against the outer wall of the cylinder liner body 2 and the inner grinding roller 414 abuts against the inner wall of the cylinder liner body 2. Furthermore, by rotating the support plate 410, the outer grinding roller 412 and the inner grinding roller 414 can also abut against the inner and outer walls of the cylinder liner body 2 with different thicknesses. Then, the drive motor 415 is started. The rotation of the output end of the drive motor 415 drives the cam gear 411 to rotate, and the rotation of the cam gear 411 drives the concave gear 413 to rotate.At this time, the outer grinding roller 412 and the inner grinding roller 414, driven by the cam gear 411 and the concave gear 413, will simultaneously grind the outer and inner walls of the cylinder liner body 2, thereby greatly improving the grinding efficiency. When the cam gear 411 rotates, it will also drive the belt 416 to move. The movement of the belt 416 will drive the drive roller 406 to rotate, and the drive roller 406 will drive the cylinder liner body 2 to rotate. At this time, the sliding direction of the contact point between the cylinder liner body 2 and the outer grinding roller 412 and the inner grinding roller 414 is opposite, thereby further improving the polishing efficiency of the cylinder liner body 2. A retaining ring 407 is fixedly connected to the arc surface of the drive roller 406. The retaining ring 407 has an inner core and an outer core. The inner core of the retaining ring 407 is made of iron, and the outer core is made of rubber. The outer core of the retaining ring 407 wraps around the surface of the inner core. When the cylinder liner body 2 slides along the arc surface of the drive roller 406, it will contact the retaining ring 407, thus limiting the position of the cylinder liner body 2. Two second electric actuators 419 are rotatably connected to the surface of the bracket 3. The output end of the second electric actuator 419 is rotatably connected to the rotating plate 401. By controlling the extension of the output end of the second electric actuator 419, the output end of the second electric actuator 419 will drive the rotating plate 401 to rotate. When the rotating plate 401 rotates, it will drive the mounting frame 402 to rotate. The rectangular block 405 will drive the drive roller 406 to rotate by means of the rotating mounting frame 402. The state of the drive roller 406 can be adjusted by means of the second electric actuators 419, so as to facilitate the placement of the cylinder liner body 2 on the arc surface of the drive roller 406. ,

[0045] like Figure 5 and Figure 7 as well as Figure 8As shown, a sliding sleeve 52 is slidably fitted onto the surface of the strip rod 51. The pressure roller 53 is rotatably connected to the sliding sleeve 52. A screw 54 is threaded onto the upper surface of the sliding sleeve 52. A rotating block 55 is rotatably connected to one end of the strip rod 51. The size of the rotating block 55 is adapted to the size of the sliding sleeve 52. An annular protrusion is provided axially at the end of the rotating block 55 away from the strip rod 51. The sliding sleeve 52 is slid from the surface of the rotating block 55 to the surface of the strip rod 51. The sliding of the sliding sleeve 52 will drive the pressure roller 53 to slide. The sliding of the pressure roller 53 will contact the cylinder liner body 2. At this time, the pressure roller 53 will restrict the position of the cylinder liner body 2. Then, the screw 54 is rotated, and the screw 54 achieves the function of restricting the position of the sliding sleeve 52 and thus restricting the position of the pressure roller 53. An alignment groove 56 is provided on the side of the strip rod 51 near the rotating block 55. A positioning rod 57 is fixedly connected to the surface of the rotating block 55. The size of the positioning rod 57 matches the size of the alignment groove 56. A misalignment groove 58 is provided on the side of the strip rod 51 near the rotating block 55. When the positioning rod 57 rotates to the inner wall of the alignment groove 56, the rotating block 55 will align with the positioning rod 57. At this time, the sliding sleeve 52 can slide normally along the surfaces of the rotating block 55 and the strip rod 51. When the positioning rod 57 rotates to the inner wall of the misalignment groove 58, the rotating block 55 will misalign with the strip rod 51. This prevents the sliding sleeve 52 from sliding from the surface of the rotating block 55 to the surface of the strip rod 51. A slanted groove 59 is provided on the upper surface of the strip rod 51. The vertical cross-section of the slanted groove 59 is triangular. The slanted groove 59 with a triangular vertical cross-section can prevent the screw 54 from sliding along the inner wall of the slanted groove 59 towards the rotating block 55, thereby further improving the limiting effect of the screw 54.

[0046] like Figure 2 and Figure 9As shown, a square rod 62 is fixedly connected to the output end of the third electric actuator 61, and a pressure plate 63 is fixedly connected to the lower end of the square rod 62. A square frame 64 is slidably fitted onto the surface of the square rod 62. A tensioning wheel 65 is rotatably connected to the square frame 64. A belt 416 is fitted onto the arc surface of the tensioning wheel 65. The pressure plate 63 is located inside the square frame 64 and controls the extension of the output end of the third electric actuator 61. The extension of the square rod 62 by the output end of the third electric actuator 61 will drive the pressure plate 63 to move. The movement of the pressure plate 63 will abut against the inner wall of the square frame 64 and drive the square frame 64 to move synchronously. The movement of the square frame 64 will drive the tensioning wheel 65 to move. The movement of the tensioning wheel 65 will press the belt 416 tight, thereby achieving the purpose of adjusting the tension of the belt 416. A spring 66 is fitted onto the surface of the square rod 62. The two ends of the spring 66 are fixedly connected to the pressure plate 63 and the square frame 64, respectively. When the two rectangular blocks 405 move closer to each other, the belt 416 loosens, and the spring 66 automatically extends, causing the tension wheel 65 to tighten the belt 416 again, thus preventing the belt 416 from slipping off the surface of the cam gear 411. Two limiting plates 67 are fixedly connected to the outer wall of the square frame 64. The limiting plates 67 are slidably connected to the strip rod 51. Sliding the square frame 64 causes the limiting plates 67 to slide along the surface of the strip rod 51, thus restricting the movement path of the square frame 64 and consequently restricting the movement path of the tension wheel 65.

[0047] Working principle: When polishing the cylinder liner body 2, first, the output end of the third electric actuator 61 is extended. The extension of the output end of the third electric actuator 61 drives the pressure plate 63 to move. The movement of the pressure plate 63 abuts against the inner wall of the square frame 64 and drives the square frame 64 to move synchronously. The movement of the square frame 64 drives the tension wheel 65 to move. The movement of the tension wheel 65 tightens the belt 416. At the same time, the pressure plate 63 also stretches the spring 66, keeping the spring 66 in a stretched state. Then, the output end of the second electric actuator 419 is extended. At this time, the output end of the second electric actuator 419 drives the rotating plate 401 to rotate. When the rotating plate 401 rotates, it drives the mounting frame 402 to rotate. The rectangular block 405, through the rotation of the mounting frame 402, drives the drive roller 406 to rotate. When the drive roller 406 moves, it will be inclined upward from the end near the rectangular block 405 to the end away from the rectangular block 405. Then, the sliding sleeve 52 slides along the surface of the strip rod 51. The sliding sleeve 52 will slide onto the surface of the rotating block 55. At this time, the annular flange on the surface of the rotating block 55 can prevent the sliding sleeve 52 from slipping off. Then, the pressure roller 53 rotates 180 degrees. The pressure roller 53 will drive the sliding sleeve 52 to rotate. The sliding sleeve 52 will drive the rotating block 55 to rotate. The rotating block 55 will drive the positioning rod 57 to slide out from the inner wall of the alignment groove 56. Then, the positioning rod 57 will slide into the inner wall of the misalignment groove 58. At this time, the rotating block 55 will be misaligned with the strip rod 51, and the pressure roller 53 will rotate from below the sliding sleeve 52 to above the sliding sleeve 52, which facilitates the subsequent placement of the cylinder liner body 2. When the cylinder liner body 2 is placed on the arc surfaces of the two drive rollers 406, the inner grinding roller 414 will contact the inner wall of the cylinder liner body 2, and the outer grinding roller 412 will contact the outer wall of the cylinder liner body 2. At the same time, the cylinder liner body 2 will slide along the arc surfaces of the drive rollers 406 and also contact the retaining ring 407. The inner core of the iron retaining ring 407 restricts the position of the cylinder liner body 2, and the outer core of the rubber retaining ring 407 can also cushion the cylinder liner body 2 to prevent it from being damaged. Then, the servo motor 403 is started. The output end of the servo motor 403 will drive the bidirectional lead screw 404 to rotate. The rotation of the bidirectional lead screw 404 will drive the two rectangular blocks 405 along the arc surfaces of the two drive rollers 406. The inner walls of the mounting frame 402 slide away from each other, thus limiting the sliding path of the rectangular blocks 405. The sliding of the rectangular blocks 405 causes the drive rollers 406 to slide. At this time, the two drive rollers 406 support the cylinder liner body 2, thereby adjusting the height of the cylinder liner body 2 and moving it to a suitable position. During this process, the output end of the third electric actuator 61 retracts synchronously, causing the square rod 62 to move the pressure plate 63 upwards. The spring 66, with the help of the pressure plate 63, moves the square frame 64 upwards. The sliding of the square frame 64 causes the tension wheel 65 to slide, thereby loosening the belt 416 and ensuring that the two rectangular blocks 405 can slide normally. The sliding of the square frame 64 causes the limiting plate 67 to slide along the surface of the strip rod 51.The limiting plate 67 restricts the movement path of the rectangular frame 64, thereby restricting the movement path of the tensioning wheel 65.

[0048] After adjusting the height of the cylinder liner body 2, turn off the servo motor 403. Then, rotate the rotating block 55 in the opposite direction to make the positioning rod 57 slide into the inner wall of the alignment groove 56. At this time, the rotating block 55 will be aligned with the strip rod 51. Then, slide the sliding sleeve 52 from the surface of the rotating block 55 to the surface of the strip rod 51. The sliding of the sliding sleeve 52 will drive the pressure roller 53 to slide. The sliding of the pressure roller 53 will contact the cylinder liner body 2. At this time, the pressure roller 53 will restrict the position of the cylinder liner body 2. Then, rotate the screw 54. The screw 54 will move by the thread and abut against the inner wall of the inclined groove 59. The screw 54 achieves the function of restricting the position of the sliding sleeve 52 and thus restricting the position of the pressure roller 53. At the same time, the inclined groove 59 with a vertical cross section of triangle can also prevent the screw 54 from moving along the inner wall of the inclined groove 59. Slide the screw 54 closer to the rotating block 55 to further improve its limiting effect. Then, control the output end of the second electric actuator 419 to retract. The second electric actuator 419 will drive the rotating plate 401 to rotate. At this time, the drive roller 406 will gradually rotate downward. Therefore, the end of the cylinder liner body 2 near the mounting frame 402 will be higher than the end away from the mounting frame 402. Then, control the output end of the first electric actuator 417 to extend. The output end of the first electric actuator 417 will drive the transmission plate 418 to rotate. The rotating rod 409 will drive the support plate 410 to rotate by means of the transmission plate 418. The rotation of the support plate 410 will drive the cam gear 411 and the concave gear 413 to rotate. The cam gear 411 and the concave gear 413 will drive the outer grinding roller 412 and the inner grinding roller 413 respectively. Roller 414 rotates until the outer grinding roller 412 abuts against the outer wall of the cylinder liner body 2 and the inner grinding roller 414 abuts against the inner wall of the cylinder liner body 2. Furthermore, by rotating the support plate 410, the outer grinding roller 412 and the inner grinding roller 414 can also abut against the inner and outer walls of the cylinder liner body 2 with different thicknesses. Then, the drive motor 415 is started. The rotation of the output end of the drive motor 415 drives the cam gear 411 to rotate, which in turn drives the concave gear 413 to rotate. At this time, driven by the cam gear 411 and the concave gear 413, the outer grinding roller 412 and the inner grinding roller 414 simultaneously grind the outer and inner walls of the cylinder liner body 2, thereby greatly improving grinding efficiency. The rotation of the cam gear 411 also drives the belt 416 to move. The movement of belt 416 will drive drive roller 406 to rotate, and drive roller 406 will drive cylinder liner body 2 to rotate. At this time, the sliding direction of the contact point between cylinder liner body 2 and outer polishing roller 412 and inner polishing roller 414 is opposite, thereby further improving the polishing efficiency of cylinder liner body 2. During the polishing process, since the end of cylinder liner body 2 near mounting frame 402 is higher than the end away from mounting frame 402, the polishing debris generated in cylinder liner body 2 can slide out of cylinder liner body 2 more easily, thereby improving the polishing effect of cylinder liner body 2. Pressure roller 53 can restrict the position of cylinder liner body 2, prevent cylinder liner body 2 from sliding off the arc surface of drive roller 406, and ensure that cylinder liner body 2 can be polished normally.

[0049] After polishing, the output end of the servo motor 403 is controlled to rotate in the opposite direction. At this time, the two rectangular blocks 405 will move closer to each other, and the spring 66 will begin to contract. The square frame 64 will slide down the surface of the square rod 62 with the help of the tension of the spring 66. The sliding of the square frame 64 will drive the tension wheel 65 to slide. Therefore, the tension wheel 65 can tighten the belt 416 that has loosened due to the movement of the rectangular blocks 405, thereby preventing the belt 416 from falling off the surface of the cam gear 411. Then, the output end of the second electric push rod 419 is controlled to extend again, so that the cylinder liner body 2 is tilted upward. Then, the screw 54 is rotated in the opposite direction, so that the screw 54 is disengaged from the inner wall of the inclined groove 59. Then, the sliding sleeve 52 is slid to the surface of the rotating block 55 and the pressure roller 53 is rotated. Then, the cylinder liner body 2 can be removed from the arc surface of the drive roller 406, completing the polishing work of the cylinder liner body 2.

[0050] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0051] 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. An internal combustion engine cylinder liner polishing apparatus comprising a worktable (1) and a cylinder liner body (2), characterized in that: The upper surface of the workbench (1) is fixedly connected with a support (3), and further comprises: A polishing structure (4) is arranged on the surface of the support (3) and is used for polishing the inner wall and the outer wall of the cylinder liner body (2) simultaneously, the polishing structure (4) comprises a rotating plate (401) rotatably connected with the support (3), a driving roller (406) used for supporting the cylinder liner body (2), a belt (416) used for driving the driving roller (406) to rotate, an inner polishing roller (414) used for polishing the inner wall of the cylinder liner body (2), an outer polishing roller (412) used for polishing the outer wall of the cylinder liner body (2), and a mounting frame (402) fixedly installed on one side of the rotating plate (401); A limiting structure (5) is arranged on the outer wall of the mounting frame (402) and is used for preventing the cylinder liner body (2) from sliding, the limiting structure (5) comprises a strip-shaped rod (51) fixedly installed on the outer wall of the mounting frame (402) and a pressing roller (53) used for limiting the cylinder liner body (2); An adjusting structure (6) is arranged on the surface of the strip-shaped rod (51) and is used for adjusting the tightness of the belt (416), the adjusting structure (6) comprises a third electric push rod (61) fixedly installed on the surface of the strip-shaped rod (51) and a tensioning wheel (65) used for pressing the belt (416). The outer wall of the mounting frame (402) is fixedly connected with a servo motor (403), the inner wall of the mounting frame (402) is rotatably connected with a bidirectional screw rod (404), the output end of the servo motor (403) is fixedly connected with the bidirectional screw rod (404), the curved surface of the bidirectional screw rod (404) is threadedly connected with two rectangular blocks (405), the rectangular blocks (405) are slidably connected with the mounting frame (402), the driving roller (406) is rotatably connected with the rectangular blocks (405), the cylinder sleeve body (2) is slidably connected with the driving roller (406), the lower surface of the mounting frame (402) is fixedly connected with a fixed plate (408), the fixed plate (408) is rotatably connected with a rotating rod (409) in the inner wall, one end of the rotating rod (409) is fixedly connected with a supporting plate (410), the surface of the supporting plate (410) is rotatably connected with a convex gear (411), the outer polishing roller (412) is detachably installed on the surface of the convex gear (411), the surface of the supporting plate (410) is rotatably connected with a concave gear (413), the inner polishing roller (414) is detachably installed on the surface of the concave gear (413), the tooth surface of the convex gear (411) is engaged with the tooth surface of the concave gear (413), the surface of the supporting plate (410) is fixedly connected with a driving motor (415), the output end of the driving motor (415) is fixedly connected with the convex gear (411), the lower surface of the mounting frame (402) is rotatably connected with a first electric push rod (417), the output end of the first electric push rod (417) is rotatably connected with a transmission plate (418), the transmission plate (418) is fixedly connected with the rotating rod (409), the belt (416) is sleeved on the curved surface of the convex gear (411) and the driving roller (406); The surface of the bracket (3) is rotatably connected with two second electric push rods (419), the output end of the second electric push rod (419) is rotatably connected with the rotating plate (401); The surface of the strip-shaped rod (51) is slidably sleeved with a sliding sleeve (52), the compression roller (53) is rotatably connected with the sliding sleeve (52), the upper surface of the sliding sleeve (52) is threadedly connected with a screw rod (54), one end of the strip-shaped rod (51) is rotatably connected with a rotating block (55), the size of the rotating block (55) is matched with the size of the sliding sleeve (52), and the end, away from the strip-shaped rod (51), of the rotating block (55) is provided with an annular protrusion in the axial direction; One side of the strip-shaped rod (51), close to the rotating block (55), is provided with an alignment groove (56), the surface of the rotating block (55) is fixedly connected with a positioning rod (57), the size of the positioning rod (57) is matched with the size of the alignment groove (56), and one side of the strip-shaped rod (51), close to the rotating block (55), is provided with a misalignment groove (58).

2. A cylinder liner honing apparatus of an internal combustion engine according to claim 1, characterized by: The arc surface of the driving roller (406) is fixedly connected with a blocking ring (407), the structure of the blocking ring (407) is divided into an inner core and an outer core, the inner core of the blocking ring (407) is made of iron, the inner core of the blocking ring (407) is made of rubber, and the outer core of the blocking ring (407) is wrapped on the surface of the inner core.

3. A cylinder liner honing apparatus of an internal combustion engine according to claim 1, characterized by: The upper surface of the strip-shaped rod (51) is provided with an inclined groove (59), and the vertical section of the inclined groove (59) is triangular.

4. The cylinder liner honing apparatus according to claim 1, characterized by: The output end of the third electric push rod (61) is fixedly connected with a square rod (62), the lower end of the square rod (62) is fixedly connected with a pressing plate (63), the surface of the square rod (62) is slidably sleeved with a square frame (64), the tensioning wheel (65) is rotatably connected with the square frame (64), the belt (416) is sleeved on the arc surface of the tensioning wheel (65), and the pressing plate (63) is located in the square frame (64).

5. A cylinder liner honing apparatus of an internal combustion engine according to claim 4, characterized by: The surface of the square rod (62) is sleeved with a spring (66), and the two ends of the spring (66) are fixedly connected with the pressing plate (63) and the square frame (64) respectively.

6. A cylinder liner honing apparatus of an internal combustion engine according to claim 4, characterized by: The outer wall of the square frame (64) is fixedly connected with two limiting plates (67), and the limiting plates (67) are slidably connected with the strip-shaped rod (51).

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