A machine for grinding exhaust valves

Abstract

The present application relates to the field of grinding device, specifically relates to a kind of exhaust valve grinder of pay machine, including grinding device base, the front side fixed installation limiting component of upper end of the grinding device base, limiting component upper end is placed exhaust valve body seat, grinding device base upper end is provided with lifting device, the freely liftable grinder group is fixedly installed in the middle of lifting device lower end, lifting device right side is fixedly installed with sub-control drive plate, sub-control drive plate is externally provided with start switch, and start switch is fixedly installed on lifting device.The present application is used, by adjusting ranging module, the upper end surface of exhaust valve body placed on valve body mounting seat and the valve hole of grinding are measured at multiple points, then the obtained data are compared, the overall height of grinder group is adjusted, so that screw rod drives seat to be lifted, the length of control cylinder is simultaneously, the relative position of cylinder and grinding wheel during grinding process is tracked, according to the inner wall condition of actual valve hole, the grinding rate is adjusted by controlling telescopic frequency, to ensure that different models of exhaust valve body are adaptively ground.

Description

Technical Field

[0001] This invention relates to the field of grinding equipment, and more specifically to a grinding machine with an auxiliary exhaust valve. Background Technology

[0002] The invention of the steam engine brought progress to industry, and the evolution from the steam engine to the internal combustion engine represented advancements in mechanical structure. Today, the internal combustion engine is the power provider for our transportation, industry, and more.

[0003] The exhaust valve chamber is a component of the diesel engine combustion chamber. It operates under harsh conditions, bearing high thermal and mechanical loads. Prolonged load processes can easily lead to wear and high-temperature corrosion on the valve orifice wall.

[0004] Currently, Chinese patent CN109746822A discloses a diesel engine cylinder head valve grinding machine. It uses a motor-driven rotating camshaft with multiple cams mounted on it. Each cam corresponds eccentrically to one of the intake and exhaust valves on the engine cylinder head. As the camshaft rotates, it simultaneously lifts and lowers the valves, causing the valve stem to rotate horizontally, grinding all the valves on the engine cylinder head supported on the longitudinal beam. This eliminates the need for multiple people to manually grind each valve individually, significantly reducing labor intensity and increasing efficiency. However, the existing technical solution has the following drawbacks: The grinding of the valve holes during the rotation of multiple cams can easily lead to uneven grinding of the valve inner wall, affecting normal operation. Furthermore, the inconsistent models of the auxiliary exhaust valves make it impossible to precisely adjust the position of the grinding rod and cams. The different valve hole depths also require adjustments to ensure proper operation of the ground equipment. Therefore, those skilled in the art have provided an auxiliary exhaust valve grinding machine to solve the problems mentioned in the background. Summary of the Invention

[0005] To solve the above technical problems, the present invention provides a grinding machine for an auxiliary exhaust valve, including a grinding device base, a limiting component fixedly installed on the front side of the upper end of the grinding device base, an exhaust valve body seat placed on the upper end of the limiting component, a lifting device provided on the upper end of the grinding device base, a grinding unit fixedly installed in the middle of the lower end of the lifting device, a sub-control drive board fixedly installed on the right side of the lifting device, a start switch externally mounted on the sub-control drive board, and the start switch fixedly installed on the lifting device.

[0006] The grinding unit includes a base, movable holes, elongated holes, a differential gear, motors, a telescopic assembly, a control unit, a limit plate, a limit screw, a cylinder, a grinding wheel, and a distance measuring module. A rotatable connection is provided between the base and the screw. The upper end of the base has several movable holes and elongated holes arranged in a ring shape, with the elongated holes symmetrically distributed on both sides of the movable holes. Several motors are fixedly installed on the base, positioned between adjacent elongated holes. The motors operate automatically with a 150W motor and a current of 0.7A. A differential gear is linked to the inner side of the motors, and a telescopic assembly is installed at the inner end of the differential gear. A cylinder is fixedly installed at the inner end of the telescopic assembly, with the lower end of the cylinder passing through the movable hole to fix the grinding wheel. A limit plate is provided on the upper side of the differential gear, with adjustable... The limit screw has matching nuts at both ends. The limit screw passes through a long hole, and the limit nuts lock the limit plate against the differential, reducing vibration caused by the motor drive. Several sub-controllers are installed on the base, each connected to a different group of differentials and motors. The sub-controllers are connected to the sub-control drive board for unified or independent control, increasing the versatility and practicality of the grinding work. Rotatable distance measuring modules are installed at the four corners of the lower end of the base. The distance measuring modules can measure the distance between the upper surface of the exhaust valve body on the valve body mounting seat and the valve hole to be ground, and then compare the obtained data to adjust the overall height of the grinding unit.

[0007] Preferably, the grinding device base includes a device base plate, a positioning plate, a T-rail, a snap-fit ​​groove, a positioning groove, and a locking pin. The positioning plate is fixedly installed at the front end of the device base plate. T-rails are symmetrically fixedly installed on the left and right sides of the upper end of the device base plate. Snap-fit ​​grooves are symmetrically opened on the left and right sides of the rear end face of the positioning plate. Positioning grooves are opened on the left and right sides of the upper end face of the positioning plate. The positioning grooves pass through the middle of the snap-fit ​​grooves. Locking pins are inserted into the positioning grooves. By inserting the track wheel seat into the snap-fit ​​groove and using the locking pin to insert the track wheel seat into the positioning groove, the lifting device is limited and stabilized, reducing the shaking of the grinding unit installed on the lifting device and ensuring vertical stability during the grinding process.

[0008] Preferably, the limiting assembly includes a fixed seat, a limiting slide groove, a limiting angle plate, a positioning bolt, a rotating handle, a connecting rod, a pulley, a driven pulley, a belt, a sliding rod, a return spring, a threaded rod, and an angled abutment plate. The upper surface of the device base plate has symmetrical fixed seats on the left and right sides. A limiting slide groove is opened on the rear side of the upper surface of the fixed seat. The limiting slide groove and the limiting block limit sliding, so that the exhaust valve body seat can slide freely on the base of the grinding device to ensure that the exhaust valve body seat is aligned with the center of the grinding unit to facilitate normal grinding operation.

[0009] Preferably, a limiting angle plate is provided on the front top of the device base plate, and a positioning bolt is inserted into the limiting angle plate. The positioning bolt has an embedded end that is embedded in the device base plate. A rotatable handle is provided in the middle of the limiting angle plate, and a connecting rod is fixedly installed at the lower end of the handle. A pulley is fixedly installed at the lower end of the connecting rod. The pulley is fixedly mounted on the upper top of the device base plate. A corresponding driven pulley is provided behind the pulley. The driven pulley and the pulley are linked by a belt. A threaded rod is fixedly installed at the upper end of the driven pulley. Sliding rods are symmetrically arranged on the left and right sides of the driven pulley. Fixed to the upper end of the device base plate, a return spring is sleeved on the slide rod, and an angled abutment is sleeved on the slide rod, which meshes with the threaded rod. By rotating the handle, the pulley at the lower end of the connecting rod is driven to rotate, and the belt ensures that the pulley drives the driven pulley to move synchronously, so that the angled abutment meshes with the threaded rod. Thus, the elastic deformation of the return spring forces the angled abutment to slide upward on the slide rod in a directional direction, providing a limiting force for the exhaust valve body seat. Under the obstruction of the limiting angled plate, it ensures that the exhaust valve body seat can be ground and calibrated with the grinding unit for the valve hole.

[0010] Preferably, the exhaust valve body seat includes a valve body mounting seat, a limiting block, an exhaust valve body, an angled opening, and valve holes. Movable I-shaped limiting blocks are fixedly installed at the four corners of the lower end of the valve body mounting seat. The limiting blocks move freely on the valve body mounting seat, so that the limiting blocks are correspondingly positioned with the limiting grooves. The upper middle part of the valve body mounting seat is provided with a groove for placing the exhaust valve body. Several valve holes are opened at the upper end of the exhaust valve body.

[0011] Preferably, the valve body mounting seat has a beveled opening at the lower rear side, which corresponds to the beveled abutment plate, so as to facilitate the limiting component to squeeze and limit it.

[0012] Preferably, the lifting device includes a track wheel seat, track wheel, support steel, fixed seat plate, sleeve, movable seat, wheel frame, connecting rod, lead screw, guide sleeve, guide column, worm gear and worm. Support steel is symmetrically installed at the four corners of the lower end of the fixed seat plate. The same track wheel seat is fixedly installed between the support steel on the same side. The track wheel seats are symmetrically distributed from left to right. Several track wheels are placed at the lower end of the track wheel seats. The T-shaped rail is slidably set with the track wheels to facilitate the lifting device to slide directionally on the grinding device base and to be aligned with the exhaust valve body seat.

[0013] Preferably, a sleeve is fixedly installed at the upper center of the fixed base plate, and a movable seat is provided on the right side of the sleeve. A radially limiting worm gear is built into the sleeve, and a lead screw is engaged in the middle of the worm gear. The lower end of the lead screw passes through the sleeve and is movably connected to the machine base. A freely rotating worm is provided behind the worm gear, and the worm is engaged with the worm gear. The left side of the worm passes through the sleeve and is connected to the connecting rod. The left central shaft of the connecting rod passes through the movable seat and is fixedly connected to the wheel frame. The connecting rod is driven by the drive wheel frame to rotate the worm, so that the worm and the worm gear are engaged, thereby making the lead screw and the worm gear's built-in central thread engage, driving the lead screw to rise and fall.

[0014] Preferably, guide sleeves are symmetrically arranged on the left and right sides of the sleeve base, and guide posts are placed through the fixed base plate at the lower end of the guide sleeves. The lower ends of the guide posts are fixedly connected to the machine base.

[0015] The technical effects and advantages of this invention are as follows:

[0016] 1. When using this invention, the pulley at the lower end of the connecting rod is rotated by rotating the handle. The belt ensures that the pulley drives the driven pulley to move synchronously, so that the angled abutment plate engages with the threaded rod. The elastic deformation and extension of the return spring forces the angled abutment plate to slide upward on the slide rod in a directional manner, providing a limiting force for the exhaust valve body seat. Under the obstruction of the limiting angle plate, the exhaust valve body seat can be ground and calibrated with the grinding unit for the valve hole.

[0017] 2. When using this invention, the separate control drive board can control different separate control machines in a unified or independent manner, increasing the versatility of the grinding work and enhancing its practicality.

[0018] 3. When using this invention, the distance measuring module is adjusted to measure the distance at multiple points on the upper surface of the exhaust valve body and the valve hole being ground, and the obtained data is compared to adjust the overall height of the grinding unit, so that the lead screw drives the machine base to rise and fall, control the length of the cylinder, and simultaneously track the relative position of the cylinder and the grinding wheel during the grinding process. The extension and retraction frequency is controlled according to the actual inner wall condition of the valve hole to adjust the grinding rate, so as to ensure that different models of exhaust valve bodies are ground in an adaptive manner. Attached Figure Description

[0019] Figure 1 This is a structural diagram provided in this application;

[0020] Figure 2 This is a schematic diagram of the structure of the limiting component provided in this application;

[0021] Figure 3 This is a structural schematic diagram of the exhaust valve housing provided in this application;

[0022] Figure 4 This is a structural schematic diagram of the lifting device provided in this application;

[0023] Figure 5 This is a schematic diagram of the worm gear and worm provided in this application;

[0024] Figure 6 This is a schematic diagram of the grinding unit provided in this application;

[0025] Figure 7 This is a flowchart of the ranging module provided in this application;

[0026] In the diagram: 1. Grinding device base; 2. Limiting component; 3. Exhaust valve body seat; 4. Lifting device; 5. Grinding unit; 6. Sub-control drive board; 7. Start switch;

[0027] 11. Device base plate; 12. Positioning plate; 13. T-rail; 14. Snap-fit ​​groove; 15. Positioning groove; 16. Locking pin;

[0028] 21. Fixed base; 22. Limiting slide groove; 23. Limiting angle plate; 24. Positioning bolt; 25. Rotating handle; 26. Connecting rod; 27. Pulley; 28. Driven pulley; 29. ​​Belt; 210. Slide rod; 211. Return spring; 212. Threaded rod; 213. Angled abutment plate;

[0029] 31. Valve body mounting seat; 32. Limiting block; 33. Exhaust valve body; 34. Angled opening; 35. Valve hole;

[0030] 41. Track wheel seat; 42. Track wheel; 43. Support steel; 44. Fixed seat plate; 45. Sleeve seat; 46. Movable seat; 47. Wheel frame; 48. Connecting rod; 49. Lead screw; 410. Guide sleeve; 411. Guide post; 412. Worm gear; 413. Worm;

[0031] 51. Base; 52. Movable hole; 53. Long hole; 54. Differential gear; 55. Motor; 56. Telescopic assembly; 57. Sub-control unit; 58. Limit plate; 59. Limit screw; 510. Cylinder; 511. Grinding wheel; 512. Distance measuring module. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0033] Example 1:

[0034] Please see Figures 1-6 In this embodiment, an auxiliary exhaust valve grinding machine is provided, including a grinding device base 1. A limiting component 2 is fixedly installed on the front side of the upper end of the grinding device base 1. An exhaust valve body seat 3 is placed on the upper end of the limiting component 2. A lifting device 4 is provided on the upper end of the grinding device base 1. A grinding unit 5 is fixedly installed in the middle of the lower end of the lifting device 4. A sub-control drive board 6 is fixedly installed on the right side of the lifting device 4. A start switch 7 is externally mounted on the sub-control drive board 6. The start switch 7 is fixedly installed on the lifting device 4.

[0035] like Figure 2 As shown, the grinding device base 1 includes a device base plate 11, a positioning plate 12, a T-shaped rail 13, a snap-fit ​​groove 14, a positioning groove 15, and a locking pin 16. The positioning plate 12 is fixedly installed at the front end of the device base plate 11. T-shaped rails 13 are symmetrically fixedly installed on the left and right sides of the upper end of the device base plate 11. The T-shaped rails 13 and the track wheels 42 are correspondingly slidable to facilitate the lifting device 4 to slide directionally on the grinding device base 1 and to be aligned with the exhaust valve body seat 3. The snap-fit ​​grooves 14 are symmetrically opened on the left and right sides of the rear end face of the positioning plate 12. The positioning grooves 15 are opened on the left and right sides of the upper end face of the positioning plate 12. The positioning grooves 15 pass through the middle of the snap-fit ​​grooves 14. The locking pin 16 is inserted into the positioning groove 15. By inserting the track wheel seat 41 into the snap-fit ​​groove 14 and using the locking pin 16 to insert the track wheel seat 41 into the positioning groove 15, the lifting device 4 is limited and stabilized, reducing the shaking of the grinding unit 5 installed on the lifting device 4 and ensuring the vertical stability of the grinding process.

[0036] like Figure 2As shown, the limiting assembly 2 includes a fixed base 21, a limiting slide groove 22, a limiting angle plate 23, a positioning bolt 24, a rotating handle 25, a connecting rod 26, a pulley 27, a driven pulley 28, a belt 29, a sliding rod 210, a return spring 211, a threaded rod 212, and an angled abutment plate 213. The upper surface of the device base plate 11 has symmetrically fixed bases 21. A limiting slide groove 22 is provided on the rear side of the upper surface of the fixed base 21. The limiting slide groove 22 slides between the limiting block 32 and the limiting slide groove 22, thereby limiting the movement of the exhaust valve body. The base 3 can slide freely on the base 1 of the grinding device to ensure that the center of the exhaust valve body base 3 is aligned with the center of the grinding unit 5, facilitating normal grinding operation. A limiting angle plate 23 is provided on the front top of the device base plate 11. A positioning bolt 24 is inserted into the limiting angle plate 23, and the positioning bolt has an embedded end that is embedded in the device base plate 11. A rotatable handle 25 is provided in the middle of the limiting angle plate 23. A connecting rod 26 is fixedly installed at the lower end of the handle 25, and a pulley 27 is fixed at the lower end of the connecting rod 26. Fixedly mounted on the upper end of the device base plate 11, a corresponding driven pulley 28 is provided behind the pulley 27. The driven pulley 28 and the pulley 27 are linked by a belt 29. A threaded rod 212 is fixedly installed on the upper end of the driven pulley 28. Slide rods 210 are symmetrically arranged on the left and right sides of the driven pulley 28. The slide rods 210 are fixed on the upper end of the device base plate 11. A return spring 211 is sleeved on the slide rod 210. An angled abutment plate 213 is sleeved on the slide rod 210. The angled abutment plate 213 engages with the threaded rod 212. The lever 25 is rotated to drive the pulley 27 at the lower end of the connecting rod 26 to rotate. The belt 29 ensures that the pulley 27 drives the driven pulley 28 to move synchronously, so that the angled abutment 213 engages with the threaded rod 212. The elastic deformation of the return spring 211 forces the angled abutment 213 to slide upward on the slide rod 210, providing a limiting force for the exhaust valve body seat 3. Under the obstruction of the limiting angle plate 23, the exhaust valve body seat 3 can be ground and calibrated with the grinding unit 5 for the valve hole 35.

[0037] like Figure 3 As shown, the exhaust valve body seat 3 includes a valve body mounting seat 31, a limiting block 32, an exhaust valve body 33, an angled opening 34, and a valve hole 35. The four corners of the lower end of the valve body mounting seat 31 are fixedly installed with movable I-shaped limiting blocks 32. The limiting blocks 32 move freely on the valve body mounting seat 31, so that the limiting blocks 32 are correspondingly positioned with the limiting slide groove 22. The upper middle part of the valve body mounting seat 31 is provided with a groove to place the exhaust valve body 33. Several valve holes 35 are opened at the upper end of the exhaust valve body 33. An angled opening 34 is provided on the rear side of the lower end of the valve body mounting seat 31. The angled opening 34 is correspondingly positioned with the angled abutment plate 213 to facilitate the limiting component 2 to squeeze and limit it.

[0038] like Figure 4 and Figure 5As shown, the lifting device 4 includes a track wheel seat 41, track wheels 42, support steel 43, fixed seat plate 44, sleeve seat 45, movable seat 46, wheel frame 47, connecting rod 48, lead screw 49, guide sleeve 410, guide column 411, worm gear 412, and worm 413. Support steel 43 is symmetrically installed at the four corners of the lower end of the fixed seat plate 44. The same track wheel seat 41 is fixedly installed between the support steel 43 on the same side. The track wheel seats 41 are symmetrically distributed from left to right. Several track wheels 42 are arranged at the lower end of the track wheel seat 41. The sleeve seat 45 is fixedly installed in the middle of the upper end of the fixed seat plate 44. The movable seat 46 is arranged on the right side of the sleeve seat 45. The sleeve seat 45 has a radially limiting worm gear 412 inside. A lead screw 49 is meshed in the middle of the worm gear 412. A freely rotating worm 413 is provided on the rear side of the worm gear 412. The worm 413 meshes with the worm gear 412. The left side of the worm 413 passes through the sleeve 45 and connects to the connecting rod 48. The left central axis of the connecting rod 48 passes through the movable seat 46 and fixes the connecting wheel frame 47. The connecting rod 48 is driven by the drive wheel frame 47 to rotate the worm 413, so that the worm 413 meshes with the worm gear 412. This causes the lead screw 49 to mesh with the internal central thread of the worm gear 412, driving the lead screw 49 to rise and fall. Guide sleeves 410 are symmetrically arranged on the left and right sides of the sleeve 45. The lower end of the guide sleeve 410 passes through the fixed seat plate 44 to mount the guide post 411.

[0039] like Figure 6As shown, the grinding unit 5 includes a base 51, movable holes 52, elongated holes 53, a differential gear 54, a motor 55, a telescopic assembly 56, a control unit 57, a limiting plate 58, a limiting screw 59, a cylinder 510, a grinding wheel 511, and a ranging module 512. The base 51 is fixedly connected to the lower end of the guide post 411. The lower end of the lead screw 49 passes through the sleeve 45 and is movably connected to the base 51. The upper end of the base 51 has several movable holes 52 and elongated holes 53 arranged in a ring. Several motors 55 are symmetrically distributed on both sides of the movable hole 52. A number of motors 55 are fixedly installed on the base 51, positioned between two adjacent elongated holes 53. Each motor 55 operates automatically with a 150W motor and a 0.7A current. A differential gear 54 is linked to the inner side of each motor 55. A telescopic assembly 56 is installed at the inner end of the differential gear 54. A cylinder 510 is fixedly installed at the inner end of the telescopic assembly 56. The lower end of the cylinder 510 passes through the movable hole 52 and is fixedly installed with a grinding wheel 511. A limit plate 58 is provided on the upper side of the differential 54. Adjustable limit screws 59 are provided at both ends of the limit plate 58. Both ends of the limit screws 59 are provided with mating nuts. The limit screws 59 pass through the elongated hole 53. The limit nuts are used to lock the limit plate 58 to the differential 54, reducing the vibration caused by the motor 55 drive. Several sub-controllers 57 are provided on the base 51. Each sub-controller 57 is connected to a different group of differentials 54 and a different group of motors 55. The sub-control unit 57 is connected to the sub-control drive board 6 for control. The sub-control drive board 6 can control different sub-control units 57 in a unified or independent manner, increasing the versatility and practicality of the grinding work. The four corners of the lower end of the base 51 are equipped with rotatable distance measuring modules 512. The distance measuring modules 512 can measure the distance between the upper surface of the exhaust valve body 33 placed on the valve body mounting seat 31 and the valve hole 35 being ground, and then compare the obtained data to adjust the overall height of the grinding unit 5.

[0040] Specific implementation process: First, slide the track wheel seat 41 forward along the track wheel 42, insert the front side of the track wheel seat 41 into the snap-fit ​​groove 14, and lock the track wheel seat 41 by inserting the locking pin 16 into the positioning groove 15 to prevent displacement and slippage caused by grinding vibration of the lifting device 4. Then, place the exhaust valve body 33 on the valve body mounting seat 31, and use the limiting block 32 to snap into the limiting slide groove 22 to push the limiting block 32 and the valve body mounting seat 31 forward to move below the grinding unit 5. Then rotate the rotating handle 25, and the connecting rod 26 drives the pulley 27 to rotate, and the driven pulley 28 is driven by the belt 29. At this time, the driven pulley 28 will drive the threaded rod 212 to mesh with the angled abutment plate 213, which cooperates with the guide of the slide rod 210 and the spring of the return spring 211. The deformation will cause the angled abutment plate 213 to enter the angled opening 34 and move upward to limit the valve body mounting seat 31, which will be fastened in conjunction with the limiting angle plate 23 to ensure that the exhaust valve body 33 is vertically aligned with the center of the grinding unit 5. At the same time, the upward movement of the limit will make the limit block 32 fit against the upper wall of the limit slide groove 22, reducing sliding and reducing the offset that occurs during the grinding process, thus reducing errors. By rotating the wheel frame 47, the worm 413 on the other side of the connecting rod 48 will rotate. The worm 413 will mesh with the worm wheel 412, and the worm wheel 412 will further mesh with the lead screw 49, thereby driving the lead screw 49 to rise and fall. With the directional cooperation of the guide sleeve 410 and the guide post 411, the lead screw 49 will drive the machine base 51 to rise and fall, so as to ensure that different models of exhaust valve bodies 33 can be ground in an adaptive manner.

[0041] Next, turn on the start switch 7. Based on the height of the top surface of the exhaust valve body 33 and the inside of the valve hole 35 collected by the laser emitted by the ranging module 512, effectively control the length extension and retraction of the cylinder 510. The sub-control drive board 6 independently controls the sub-control machine 57, and the differential speed machine 54 adjusts the speed to control the grinding speed of the grinding wheel 511 driven by the cylinder 510, and adjust the grinding frequency.

[0042] Example 2:

[0043] This invention also provides a grinding method for an auxiliary exhaust valve grinding machine. The ranging module 512 is configured to be movable. By controlling the exhaust valve size or model information set by the system, the ranging module is controlled to move in a cross shape. Therefore, this method requires a scanning device to be installed on the ranging module. The scanning device scans a QR code, and then determines the size and model through the QR code information. Finally, the ranging module 512 performs a secondary determination of the size. The more fundamental purpose of this secondary determination is to determine the boundary size and position of the exhaust valve orifice 35 by transmitting and comparing the ranging data at the valve body position at the ranging scan point. Then, according to the specifications and model of the exhaust valve, measure the number of holes that need to be ground, determine the center point, measure the relative position of each hole to be ground with respect to the center point, adjust the motor and the telescopic component group 56 controlled by the motor, and then slowly lower the cylinder 510. When the cylinder 510 and the grinding wheel 511 approach the grinding work area, the distance measuring module 512 continuously measures the relative position of the grinding wheel 511 on the cylinder 510 and the hole position of the exhaust valve 35 to ensure that the grinding wheel 511 fits and grinds the inner wall and hole depth of the valve hole 35, increasing the grinding accuracy, ensuring uniform grinding, and improving the grinding effect.

[0044] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A grinding machine for auxiliary exhaust valves, comprising a grinding device base (1), characterized in that, The grinding device base (1) is fixedly installed with a limiting component (2) on the front side of the upper end. The upper end of the limiting component (2) is equipped with an exhaust valve body seat (3). The upper end of the grinding device base (1) is provided with a lifting device (4). The middle part of the lower end of the lifting device (4) is fixedly installed with a grinding unit (5). The right side of the lifting device (4) is fixedly installed with a sub-control drive board (6). The sub-control drive board (6) is externally equipped with a start switch (7). The start switch (7) is fixedly installed on the lifting device (4). The grinding unit (5) includes a base (51), movable holes (52), elongated holes (53), a differential gear (54), motors (55), telescopic components (56), a control unit (57), a limiting plate (58), a limiting screw (59), a cylinder (510), a grinding wheel (511), and a ranging module (512). The upper end of the base (51) is annularly provided with several movable holes (52) and elongated holes (53). The elongated holes (53) are symmetrically distributed on both sides of the movable holes (52). Several motors (55) are fixedly installed on the base (51). The motors (55) are positioned between two adjacent elongated holes (53). The motors (55) operate automatically with a current of 0.7A and a current of 150W. A differential gear (54) is linked to the inner side of the motor (55). One end of the telescopic component assembly (56) is installed. The telescopic component assembly (56) is fixedly installed with a cylinder (510) at one end. The lower end of the cylinder (510) passes through the movable hole (52) and is fixedly installed with a grinding wheel (511). A limit plate (58) is provided on the upper side of the differential (54). Adjustable limit screws (59) are provided at both ends of the limit plate (58). Both ends of the limit screws (59) are provided with matching nuts. The limit screws (59) pass through the elongated hole (53). Several sub-control machines (57) are provided on the base (51). Each sub-control machine (57) is connected to a different group of differentials (54) and a different group of motors (55). The sub-control machine (57) is connected to the sub-control drive board (6) for control. A rotatable ranging module (512) is provided at the four corners of the lower end of the base (51).

2. The auxiliary exhaust valve grinding machine according to claim 1, characterized in that, The grinding device base (1) includes a device base plate (11), a positioning plate (12), a T-shaped rail (13), a snap-fit ​​groove (14), a positioning groove (15), and a locking pin (16). The positioning plate (12) is fixedly installed at the front end of the device base plate (11). The T-shaped rail (13) is symmetrically fixedly installed on the left and right sides of the upper end of the device base plate (11). The snap-fit ​​groove (14) is symmetrically opened on the left and right sides of the rear end face of the positioning plate (12). The positioning groove (15) is opened on the left and right sides of the upper end face of the positioning plate (12). The positioning groove (15) passes through the middle of the snap-fit ​​groove (14). The locking pin (16) is inserted into the positioning groove (15).

3. The auxiliary exhaust valve grinding machine according to claim 2, characterized in that, The limiting component (2) includes a fixed seat (21), a limiting slide groove (22), a limiting angle plate (23), a positioning bolt (24), a rotating handle (25), a connecting rod (26), a pulley (27), a driven pulley (28), a belt (29), a sliding rod (210), a return spring (211), a threaded rod (212), and an angled abutment plate (213). The upper end face of the device base plate (11) has symmetrical fixed seats (21) on the left and right sides. A limiting slide groove (22) is opened on the rear side of the upper end face of the fixed seat (21). The limiting slide groove (22) and the limiting block (32) are limited to slide.

4. A grinding machine for auxiliary exhaust valves according to claim 3, characterized in that, A limiting angle plate (23) is provided on the front side of the top of the device base plate (11). A positioning bolt (24) is inserted into the limiting angle plate (23). The positioning bolt has an embedded end that is embedded in the device base plate (11). A rotatable handle (25) is provided in the middle of the limiting angle plate (23). A connecting rod (26) is fixedly installed at the lower end of the handle (25). A pulley (27) is fixed at the lower end of the connecting rod (26). The pulley (27) is fixedly placed on the upper end of the device base plate (11). A corresponding [feature / feature] is provided on the rear side of the pulley (27). The driven pulley (28) is linked to the pulley (27) by a belt (29). A threaded rod (212) is fixedly installed on the upper end of the driven pulley (28). Slide rods (210) are symmetrically arranged on the left and right sides of the driven pulley (28). The slide rods (210) are fixed on the upper end of the device base plate (11). A return spring (211) is sleeved on the slide rod (210). An angled abutment plate (213) is sleeved on the slide rod (210). The angled abutment plate (213) is engaged with the threaded rod (212).

5. A grinding machine for auxiliary exhaust valves according to claim 4, characterized in that, The exhaust valve body seat (3) includes a valve body mounting seat (31), a limiting block (32), an exhaust valve body (33), an angled opening (34), and a valve hole (35). The four corners of the lower end of the valve body mounting seat (31) are fixedly installed with movable I-shaped limiting blocks (32). The limiting blocks (32) move freely on the valve body mounting seat (31), so that the limiting blocks (32) are correspondingly placed with the limiting slide groove (22). The middle of the upper end of the valve body mounting seat (31) is provided with a groove to place the exhaust valve body (33). The upper end of the exhaust valve body (33) is provided with several valve holes (35).

6. A grinding machine for auxiliary exhaust valves according to claim 5, characterized in that, The valve body mounting seat (31) is provided with a beveled opening (34) at the rear of its lower end, and the beveled opening (34) is provided in correspondence with the beveled abutment plate (213).

7. A grinding machine for auxiliary exhaust valves according to claim 2, characterized in that, The lifting device (4) includes a track wheel seat (41), a track wheel (42), a support steel (43), a fixed seat plate (44), a sleeve seat (45), a movable seat (46), a wheel frame (47), a connecting rod (48), a lead screw (49), a guide sleeve (410), a guide column (411), a worm gear (412), and a worm (413). The support steel (43) is symmetrically installed at the four corners of the lower end of the fixed seat plate (44). The same track wheel seat (41) is fixedly installed between the support steel (43) on the same side. The track wheel seats (41) are symmetrically distributed from left to right. Several track wheels (42) are placed at the lower end of the track wheel seat (41). The T-shaped rail (13) is slidably set with the track wheels (42).

8. A grinding machine for auxiliary exhaust valves according to claim 7, characterized in that, The upper middle part of the fixed plate (44) is fixedly installed with a sleeve (45). A movable seat (46) is provided on the right side of the sleeve (45). The sleeve (45) has a radially limiting worm wheel (412) inside. A lead screw (49) is meshed in the middle of the worm wheel (412). The lower end of the lead screw (49) passes through the sleeve (45) and is movably connected to the machine base (51). A freely rotating worm (413) is provided on the rear side of the worm wheel (412). The worm (413) is meshed with the worm wheel (412). The left side of the worm (413) passes through the sleeve (45) and is connected to the connecting rod (48). The left central axis of the connecting rod (48) passes through the movable seat (46) and is fixedly connected to the wheel frame (47).

9. A grinding machine for auxiliary exhaust valves according to claim 8, characterized in that, The sleeve (45) is symmetrically provided with guide sleeves (410) on the left and right sides. The lower end of the guide sleeve (410) passes through the fixed seat plate (44) to place the guide post (411). The lower end of the guide post (411) is fixedly connected to the machine base (51).

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