A shaft grinding device and a grinding method for automobile wheel axles.

Abstract

This invention relates to the field of grinding equipment technology, and discloses a shaft grinding device and a grinding method for automobile wheel axles. Through the setting of a cleaning mechanism, when the grinding assembly grinds the shaft with a grinding wheel, the drive assembly of the cleaning mechanism drives the drive rod and driven rod inside the housing to swing back and forth, thereby driving the cleaning scraper to move back and forth at the bottom of the housing, scraping away the grinding fluid and debris falling on the discharge slope of the housing, and discharging the grinding fluid and debris from the housing. This ensures that the housing remains clean during shaft processing, preventing damage to the shaft caused by debris carried out by the grinding wheel, thus improving the processing quality of the shaft. Furthermore, when the drive rod and driven rod swing back and forth, the main push rod and auxiliary push rod extend and retract along the swing trajectory of the drive rod and driven rod, pushing the cleaning scraper against the discharge slope, enabling the cleaning scraper to effectively remove the grinding fluid and debris from the discharge slope, thereby improving the cleaning effect of the cleaning scraper.

Description

Technical Field

[0001] This invention relates to the field of grinding equipment technology, specifically to a shaft grinding device and a grinding method for automobile wheel axles. Background Technology

[0002] A grinding machine is a machine tool that uses grinding wheels to grind the surface of a workpiece. It can process materials with high hardness, such as hardened steel and cemented carbide, and can perform high-precision grinding with very small surface roughness. It can also perform high-efficiency grinding. With the rapid development of modern society and economy, the increase in the number of high-precision and high-hardness mechanical parts, and the development of precision casting and precision forging processes, grinding machines are increasingly widely used in production and processing. A grinding machine is generally composed of a cast iron bed as the basic part, a worktable, a head fixed frame and a tail fixed frame that support and drive the workpiece to rotate, a mounting base for mounting the grinding wheel, a transverse feed mechanism that controls the size of the workpiece being ground, and electrical and hydraulic devices that control the movement of the machine tool's moving parts. In order to protect the grinding wheel and prevent the grinding wheel from throwing grinding fluid and grinding debris into the outside during grinding, a cover is also installed on the grinding wheel.

[0003] In existing grinding equipment, when machining shafts, the high-speed rotating grinding wheel throws some grinding fluid and grinding debris from the shaft into the housing due to the housing design. While the grinding wheel is working, the operator cannot manually clean the debris and grinding fluid from the housing. If this mixture of grinding fluid and debris is not cleaned, as the debris accumulates, the rotating grinding wheel will carry the debris out of the housing and onto the shaft during grinding. This damage to the shaft caused by the grinding wheel will reduce the machining quality of the shaft. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a shaft grinding device and a grinding method for automobile wheel axles, thereby overcoming the aforementioned technical problems in existing related technologies.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a shaft grinding device, comprising a bed, a head fixing frame and a tail fixing frame respectively installed at both ends of the bed, a grinding assembly, a cleaning mechanism and a collecting assembly provided on the bed, the grinding assembly comprising a mounting base, a grinding wheel and a cover, the mounting base being installed on one side of the bed, the cover being connected to the mounting base, the grinding wheel being located inside the cover, the bottom of the cover being a downwardly sloping discharge ramp, the cleaning mechanism comprising a driving rod, a driven rod and a driving assembly, the driving rod and the driven rod being respectively installed on both sides inside the cover. The drive rod and the driven rod are respectively connected to a main push rod and an auxiliary push rod. A cleaning scraper is fixed between the main push rod and the auxiliary push rod. The drive assembly is mounted on the cover and connected to the drive rod. The drive assembly is used to drive the drive rod to drive the driven rod to swing back and forth within the cover. During the swinging process, the main push rod synchronously drives the auxiliary push rod to drive the cleaning scraper to scrape off the debris on the discharge slope. A water collection tank is provided on the bed and is connected to the collection assembly. Grinding fluid and debris generated during the machining of the shaft are discharged into the collection assembly through the water collection tank.

[0006] Preferably, the cover is fixedly installed on the mounting base, and a discharge port is provided inside the cover. The discharge port is located at the upper end of the discharge slope. Fixed shafts are fixedly installed on both sides inside the cover, and a sector-shaped toothed ring is fixedly installed on the side of the cover away from the mounting base. The sector-shaped toothed ring is located below the fixed shaft.

[0007] Preferably, the driving rod is longer than the driven rod, the driving rod is rotatably mounted on a fixed shaft away from the mounting base, the driven rod is rotatably mounted on another fixed shaft, the grinding wheel is located between the driving rod and the driven rod, the driving rod has a guide groove located above the fixed shaft, a transmission shaft is rotatably mounted on the driving rod located below the fixed shaft, one end of the transmission shaft passes through the driving rod, and a transmission gear and a driven gear are coaxially fixedly connected to both ends of the transmission shaft, the transmission gear is located outside the driving rod and meshes with the sector-shaped gear ring, and the driven gear is located inside the driving rod.

[0008] Preferably, limit blocks are fixedly installed at the lower ends of both the driving rod and the driven rod. The main push rod and the auxiliary push rod are slidably installed in the driving rod and the driven rod, respectively. Sliding grooves are provided on both the main push rod and the auxiliary push rod. The two limit blocks are located in the two sliding grooves, respectively. A driving rack is fixedly installed on the side of the main push rod. The driving rack meshes with the driven gear. Fixed rods are fixedly connected to both sides of the cleaning scraper. The two fixed rods are fixedly installed at the lower ends of the main push rod and the auxiliary push rod, respectively.

[0009] Preferably, the drive assembly includes a motor and a drive disk. The motor is fixedly installed on the side of the cover away from the mounting base. The output shaft of the motor is coaxially fixedly connected to the drive disk. The drive disk is rotatably installed inside the cover. An eccentric shaft is eccentrically provided on the side of the drive disk. The eccentric shaft is fixedly connected to the drive disk and slidably connected in the guide groove.

[0010] Preferably, the grinding assembly further includes a drive motor and a drive shaft, the drive motor and the drive shaft are sequentially mounted on the mounting base, the drive motor is fixedly connected to the mounting base, the drive shaft is rotatably connected to the mounting base, and the output shaft of the drive motor is connected to one end of the drive shaft via a belt, the other end of the drive shaft passes through the housing, and the grinding wheel is coaxially fixedly connected to that end of the drive shaft.

[0011] Preferably, a nozzle for spraying grinding fluid is fixedly installed on the outside of the housing, and the nozzle is aligned with the grinding wheel.

[0012] Preferably, the collection assembly includes a collection box placed on the side of the bed, on the side of the cover away from the mounting base, and a filter plate is fixedly installed on the opening of the collection box for filtering out debris from the grinding fluid.

[0013] Preferably, a guide rail is fixedly installed on the main body, and the head fixing bracket and the tail fixing bracket are slidably installed on the guide rail. The water collection tank surrounds the outside of the guide rail and the mounting base. The cover is located above the water collection tank. A drain outlet is opened on the side of the water collection tank near the collection box. A drain pipe is fixedly connected to the drain outlet. The drain pipe corresponds to the top of the opening of the collection box. A baffle is also fixedly connected at the processing position of the bed. The baffle is located outside the water collection tank.

[0014] This invention also provides a grinding method for automobile wheel axles, using a shaft grinding device, the specific steps of which are as follows:

[0015] First, the shaft to be processed is clamped onto the machine bed using the head and tail fixing brackets, positioning the shaft at the processing position. Then, the grinding wheel of the grinding assembly rotates to grind the shaft. During the grinding process, the drive assembly drives the drive rod and driven rod to swing the cleaning scraper back and forth inside the housing. At the same time, the main push rod pushes the cleaning scraper to keep it in contact with the discharge ramp as the drive rod swings, thereby effectively scraping off the grinding fluid and debris on the discharge ramp. The debris is then discharged into the collection assembly through the water collection tank on the machine bed. After the shaft is processed, the equipment stops working.

[0016] Compared with the prior art, the present invention provides a shaft grinding device and a grinding and polishing method for automobile wheel axles, which has the following beneficial effects:

[0017] 1. This shaft grinding equipment and grinding method for automotive wheel axles, through the setting of the cleaning mechanism, when the grinding assembly grinds the shaft with the grinding wheel, the drive assembly of the cleaning mechanism drives the drive rod and driven rod inside the housing to swing back and forth, thereby driving the cleaning scraper to move back and forth at the bottom of the housing, scraping away the grinding fluid and debris falling on the discharge slope of the housing, and discharging the grinding fluid and debris from the discharge slope of the housing, ensuring that the housing remains clean when processing the shaft, avoiding damage to the shaft caused by debris carried out by the grinding wheel, thereby improving the processing quality of the shaft. Moreover, when the drive rod and driven rod swing back and forth, the main push rod and the auxiliary push rod will extend and retract along the swing trajectory of the drive rod and driven rod, pushing the cleaning scraper to always be in contact with the discharge slope, so that the cleaning scraper can effectively scrape away the grinding fluid and debris on the discharge slope, thereby improving the cleaning effect of the cleaning scraper.

[0018] 2. The shaft grinding equipment and grinding method for automobile wheel axles, through the setting of the collection component, when the grinding fluid mixed with debris is discharged into the collection tank through the drain pipe from the water collection tank, the filter plate on the opening of the collection tank will filter out the debris mixed in the grinding fluid, allowing the grinding fluid to enter the collection tank, while the debris remains on the filter plate. During the collection process, the grinding fluid and debris are separated, which facilitates the subsequent recycling of grinding fluid and debris and improves the collection efficiency of grinding fluid and debris. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the planar structure of the present invention;

[0021] Figure 3 This is a side view of the collection component of the present invention;

[0022] Figure 4 This is a side view of the baffle structure of the present invention;

[0023] Figure 5 This is a top view of the structure of the present invention;

[0024] Figure 6 This is a schematic diagram showing the positional relationship between the cleaning mechanism and the cover of the present invention;

[0025] Figure 7 for Figure 6 A magnified schematic diagram of the structure at point A;

[0026] Figure 8 This is a schematic diagram of the internal structure of the drive rod of the present invention;

[0027] Figure 9 for Figure 8 A magnified schematic diagram of the structure at point B;

[0028] Figure 10 This is a schematic diagram of the internal structure of the driven rod of the present invention;

[0029] Figure 11 for Figure 10 A magnified schematic diagram of the structure at point C;

[0030] Figure 12 This is a side view of the grinding assembly of the present invention.

[0031] In the diagram: 1. Bed; 11. Guide rail; 12. Head fixing bracket; 13. Tail fixing bracket; 14. Water collection tank; 15. Drain outlet; 16. Drain pipe; 17. Baffle; 2. Grinding assembly; 21. Mounting base; 22. Drive motor; 23. Drive shaft; 24. Grinding wheel; 25. Cover; 251. Discharge ramp; 252. Discharge port; 26. Fixed shaft; 27. Sector-shaped toothed ring; 28. Nozzle; 3. Cleaning mechanism; 31. Drive rod; 311. Guide groove; 32. Drive shaft; 321. Drive gear; 322. Driven gear; 33. Main push rod; 331. Drive rack; 4. Driven rod; 41. Secondary push rod; 5. Limit block; 6. Sliding groove; 7. Cleaning scraper; 71. Fixed rod; 8. Drive assembly; 81. Motor; 82. Drive disc; 821. Eccentric shaft; 9. Collection assembly; 91. Collection box; 92. Filter plate. Detailed Implementation

[0032] 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.

[0033] Please see Figures 1-12A shaft grinding device includes a bed 1, with a head fixing frame 12 and a tail fixing frame 13 respectively installed at both ends of the bed 1. The bed 1 is equipped with a grinding assembly 2, a cleaning mechanism 3, and a collection assembly 9. The grinding assembly 2 includes a mounting base 21, a grinding wheel 24, and a cover 25. The mounting base 21 is installed on one side of the bed 1, and the cover 25 is connected to the mounting base 21. The grinding wheel 24 is located inside the cover 25, and the bottom of the cover 25 is a downwardly sloping discharge ramp 251. The cleaning mechanism 3 includes a drive rod 31, a driven rod 4, and a drive assembly 8. The drive rod 31 and the driven rod 4 are respectively installed on both sides inside the cover 25. A main push rod 33 and an auxiliary push rod 41 are respectively connected inside the driven rod 31 and the driven rod 4. A cleaning scraper 7 is fixed between the main push rod 33 and the auxiliary push rod 41. The drive assembly 8 is installed on the cover 25 and is connected to the drive rod 31. The drive assembly 8 is used to drive the drive rod 31 to drive the driven rod 4 to swing back and forth inside the cover 25. During the swinging process, the main push rod 33 synchronously drives the auxiliary push rod 41 to drive the cleaning scraper 7 to scrape off the debris on the discharge slope 251. A water collection tank 14 is provided on the bed 1. The water collection tank 14 is connected to the collection assembly 9. The grinding fluid and debris generated by the machining shaft are discharged into the collection assembly 9 through the water collection tank 14.

[0034] In operation, the shaft to be processed is placed between the head fixing frame 12 and the tail fixing frame 13, clamping both ends of the shaft and thus securing it to the machine bed 1. When grinding begins, the head fixing frame 12, driven by a motor, causes the shaft to rotate between the head fixing frame 12 and the tail fixing frame 13. Simultaneously, the grinding wheel 24 of the grinding assembly 2 rotates, grinding the rotating shaft. At the same time, the grinding assembly 2 sprays grinding fluid onto the grinding wheel 24 and the shaft. During grinding, the grinding fluid washes away the grinding debris on the shaft. Some of the grinding fluid, carrying debris, falls into the water collection tank 14 and flows towards the collection assembly 9. The rotating grinding wheel 24 throws another portion of the grinding fluid mixed with debris into the cover 25. This portion of grinding fluid and debris... The material falls onto the discharge ramp 251 of the housing 25. At this time, the cleaning mechanism 3 is activated, and the drive assembly 8 drives the drive rod 31 and the driven rod 4 to swing back and forth synchronously at the bottom of the housing 25. This causes the main push rod 33 and the auxiliary push rod 41 inside the drive rod 31 and the driven rod 4 to drive the cleaning scraper 7 to move back and forth on the discharge ramp 251, scraping off the grinding fluid and debris on the discharge ramp 251, thereby ensuring the cleanliness of the inside of the housing 25. During this process, the main push rod 33 will extend and retract with the swing of the drive rod 31, so that the cleaning tube plate always contacts the discharge ramp 251, improving the cleaning effect of the cleaning scraper 7. The grinding fluid and debris scraped off by the cleaning scraper 7 will fall into the water collection tank 14 below, mix with the grinding fluid in the water collection tank 14, and be discharged into the collection assembly 9 together. After the shaft has finished processing, the equipment stops working.

[0035] Furthermore, the cover 25 is fixedly installed on the mounting base 21. A discharge port 252 is provided inside the cover 25. The discharge port 252 is located at the upper end of the discharge ramp 251. Fixed shafts 26 are fixedly installed on both sides inside the cover 25. A sector-shaped toothed ring 27 is fixedly installed on the side of the cover 25 away from the mounting base 21. The sector-shaped toothed ring 27 is located below the fixed shaft 26.

[0036] Furthermore, the drive rod 31 is longer than the driven rod 4. The drive rod 31 is rotatably mounted on a fixed shaft 26 away from the mounting base 21. The driven rod 4 is rotatably mounted on another fixed shaft 26. The grinding wheel 24 is located between the drive rod 31 and the driven rod 4. A guide groove 311 is provided on the drive rod 31. The guide groove 311 is located above the fixed shaft 26. A transmission shaft 32 is rotatably mounted on the drive rod 31. The transmission shaft 32 is located below the fixed shaft 26. One end of the transmission shaft 32 passes through the drive rod 31. A transmission gear 321 and a driven gear 322 are coaxially fixedly connected to both ends of the transmission shaft 32, respectively. The transmission gear 321 is located outside the drive rod 31 and meshes with the sector-shaped gear ring 27. The driven gear 322 is located inside the drive rod 31.

[0037] When the drive assembly 8 drives the drive rod 31 to swing back and forth, the transmission gear 321 will roll along the sector gear ring 27, thereby driving the driven gear 322 to rotate inside the drive rod 31. When the drive rod 31 swings towards the lower end of the discharge ramp 251, the transmission gear 321 will drive the driven gear 322 to rotate in the forward direction. When the drive rod 31 swings towards the upper end of the discharge ramp 251, the transmission gear 321 will drive the driven gear 322 to rotate in the reverse direction.

[0038] Furthermore, limit blocks 5 are fixedly installed at the lower ends of both the drive rod 31 and the driven rod 4. The main push rod 33 and the auxiliary push rod 41 are slidably installed in the drive rod 31 and the driven rod 4, respectively. Sliding grooves 6 are provided on both the main push rod 33 and the auxiliary push rod 41. The two limit blocks 5 are located in the two sliding grooves 6, respectively. A drive rack 331 is fixedly installed on the side of the main push rod 33. The drive rack 331 meshes with the driven gear 322. Fixing rods 71 ​​are fixedly connected to both sides of the cleaning scraper 7. The two fixing rods 71 ​​are fixedly installed at the lower ends of the main push rod 33 and the auxiliary push rod 41, respectively.

[0039] When the driven gear 322 rotates in the forward direction, the rotating driven gear 322 drives the main push rod 33 to extend from the drive rod 31 through the drive rack 331. This causes the cleaning scraper 7 to move from the upper end of the discharge ramp 251 to the lower end of the discharge ramp 251, constantly contacting the discharge ramp 251. The cleaning scraper 7 then scrapes the grinding fluid and debris from the discharge ramp 251 out of the cover 25. When the driven gear 322 rotates in the reverse direction, the rotating driven gear 322 drives the extended main push rod 33 back into the drive rod 31 through the drive rack 331, causing the cleaning scraper 7 to... During the movement from the lower end of the discharge ramp 251 to the upper end of the discharge ramp 251, it always remains in contact with the discharge ramp 251. When the main push rod 33 moves, the main push rod 33 drives the auxiliary push rod 41 to move synchronously through the cleaning scraper 7. When the main push rod 33 moves in extension and retraction, the auxiliary push rod 41 will also move accordingly in the driven rod 4. When the main push rod 33 and the auxiliary push rod 41 move in extension and retraction, the limiting block 5 will slide a corresponding distance in the sliding groove 6. The setting of the limiting block 5 prevents the main push rod 33 or the auxiliary push rod 41 from moving excessively, thereby ensuring the normal operation of the cleaning mechanism 3.

[0040] Furthermore, the drive assembly 8 includes a motor 81 and a drive disk 82. The motor 81 is fixedly installed on the side of the cover 25 away from the mounting base 21. The output shaft of the motor 81 is coaxially and fixedly connected to the drive disk 82. The drive disk 82 is rotatably installed inside the cover 25. An eccentric shaft 821 is eccentrically provided on the side of the drive disk 82. The eccentric shaft 821 is fixedly connected to the drive disk 82 and slidably connected in the guide groove 311.

[0041] When the drive assembly 8 is started, the drive motor 22 drives the drive disk 82 to rotate. The rotating drive disk 82 slides up and down in the guide groove 311 through the eccentric shaft 821, causing the drive rod 31, which is rotatably mounted on the fixed shaft 26, to swing back and forth.

[0042] Furthermore, the grinding assembly 2 also includes a drive motor 22 and a drive shaft 23. The drive motor 22 and the drive shaft 23 are sequentially mounted on the mounting base 21. The drive motor 22 is fixedly connected to the mounting base 21, and the drive shaft 23 is rotatably connected to the mounting base 21. The output shaft of the drive motor 22 is connected to one end of the drive shaft 23 via a belt, and the other end of the drive shaft 23 passes through the housing 25. The grinding wheel 24 is coaxially fixedly connected to this end of the drive shaft 23.

[0043] During the grinding of the shaft, the drive motor 22 drives the drive shaft 23 to rotate via a belt, which in turn drives the grinding wheel 24 to rotate, thus grinding the shaft.

[0044] Furthermore, a nozzle 28 for spraying grinding fluid is fixedly installed on the outside of the housing 25, and the nozzle 28 is aligned with the grinding wheel 24.

[0045] During the grinding of the shaft, the nozzle 28 sprays grinding fluid onto the grinding wheel 24 and the shaft, which serves to cool, lubricate, clean, and prevent rust.

[0046] Furthermore, the collection component 9 includes a collection box 91, which is placed on the side of the bed 1, on the side of the cover 25 away from the mounting base 21. A filter plate 92 is fixedly installed on the opening of the collection box 91, and the filter plate 92 is used to filter out debris in the grinding fluid.

[0047] The grinding fluid and debris discharged from the water collection tank 14 will fall onto the filter plate 92 inside the collection tank 91. The filter plate 92 will filter out the debris from the grinding fluid, causing the grinding fluid to fall into the collection tank 91, while the debris will remain on the filter plate 92. This achieves the separation of grinding fluid and debris, facilitates the recycling of grinding fluid and debris, and improves the collection efficiency of grinding fluid and debris.

[0048] Furthermore, a guide rail 11 is fixedly installed on the main body, and the head fixing bracket 12 and the tail fixing bracket 13 are slidably installed on the guide rail 11. The water collection tank 14 surrounds the outside of the guide rail 11 and the mounting base 21. The cover 25 is located above the water collection tank 14. A drain outlet 15 is opened on the side of the water collection tank 14 near the collection box 91. A drain pipe 16 is fixedly connected to the drain outlet 15. The drain pipe 16 corresponds to the top of the box opening of the collection box 91. A baffle 17 is also fixedly connected at the processing position of the bed 1. The baffle 17 is located outside the water collection tank 14.

[0049] During the grinding of the shaft, the head fixing bracket 12 and the tail fixing bracket 13 on the moving guide rail 11 clamp the shaft. After clamping the shaft, the head fixing bracket 12 and the tail fixing bracket 13 move the shaft on the guide rail 11 to the position of the grinding wheel 24, so that the shaft is in the machining position and then the machining is performed. During the grinding process, the baffle 17 can block the splashed grinding fluid and debris, preventing the grinding fluid and debris from falling into the outside environment and polluting the environment. After the grinding fluid and debris fall into the water collection tank 14, the grinding fluid will carry the debris to the drain outlet 15 and discharge the grinding fluid and debris into the collection box 91 through the drain pipe 16.

[0050] This invention also provides a grinding method for automobile wheel axles, using a shaft grinding device, the specific steps of which are as follows:

[0051] First, the shaft to be processed is clamped on the machine bed 1 using the head fixing bracket 12 and the tail fixing bracket 13, so that the shaft is in the processing position. Then, the grinding wheel 24 of the grinding assembly 2 rotates to grind the shaft. During the grinding process, the drive assembly 8 drives the drive rod 31 and the driven rod 4 to drive the cleaning scraper 7 to swing back and forth in the cover 25. At the same time, the main push rod 33 pushes the cleaning scraper 7 to always contact the discharge slope 251 during the swing of the drive rod 31, thereby effectively scraping off the grinding fluid and debris on the discharge slope 251 and draining it into the collection assembly 9 through the water collection tank 14 on the machine bed 1. After the shaft is processed, the equipment stops working.

[0052] Working principle: During use, the shaft to be processed is placed between the head fixing frame 12 and the tail fixing frame 13, so that the head fixing frame 12 and the tail fixing frame 13 clamp the two ends of the shaft, thereby clamping the shaft on the machine bed 1. When grinding begins, the head fixing frame 12, driven by the motor, drives the shaft to rotate between the head fixing frame 12 and the tail fixing frame 13. At the same time, the grinding wheel 24 of the grinding assembly 2 rotates to grind the rotating shaft. Simultaneously, the nozzle 28 on the grinding assembly 2 sprays grinding fluid onto the grinding wheel 24 and the shaft. During the grinding process, the grinding fluid washes away the grinding debris on the shaft. Some of the grinding fluid carries the debris into the water collection tank 14. The fluid flows to the collection component 9, while the rotating grinding wheel 24 throws another part of the grinding fluid mixed with debris into the housing 25. This part of the grinding fluid and debris will fall onto the discharge ramp 251 of the housing 25. At this time, the cleaning mechanism 3 is activated, and the drive motor 22 drives the drive disk 82 to rotate. The rotating drive disk 82 slides up and down in the guide groove 311 through the eccentric shaft 821, which drives the drive rod 31, which is rotated and mounted on the fixed shaft 26, to swing back and forth. This causes the main push rod 33 and the auxiliary push rod 41 in the drive rod 31 and the driven rod 4 to drive the cleaning scraper 7 to move back and forth on the discharge ramp 251, scraping off the grinding fluid and debris on the discharge ramp 251, thereby ensuring the cleanliness of the inside of the housing 25.

[0053] During this process, the transmission gear 321 rolls along the sector gear ring 27, thereby driving the driven gear 322 to rotate within the drive rod 31. When the drive rod 31 swings towards the lower end of the discharge ramp 251, the transmission gear 321 drives the driven gear 322 to rotate in the forward direction. The rotating driven gear 322 drives the main push rod 33 to extend out of the drive rod 31 through the drive rack 331, so that the cleaning scraper 7 moves from the upper end of the discharge ramp 251 to the lower end of the discharge ramp 251, always in contact with the discharge ramp. The slopes 251 collide, causing the cleaning scraper 7 to scrape the grinding fluid and debris from the discharge slope 251 out of the housing 25. When the drive rod 31 swings towards the upper end of the discharge slope 251, the transmission gear 321 drives the driven gear 322 to rotate in the opposite direction. When the driven gear 322 rotates in the opposite direction, the rotating driven gear 322 drives the extended main push rod 33 to retract into the drive rod 31 through the drive rack 331. This allows the cleaning scraper 7 to move from the lower end of the discharge slope 251 to the upper end of the discharge slope 251. It also constantly opposes the discharge ramp 251. When the main push rod 33 moves, it drives the auxiliary push rod 41 to move synchronously through the cleaning scraper 7. When the main push rod 33 extends and retracts, the auxiliary push rod 41 also moves accordingly within the driven rod 4. When the main push rod 33 and the auxiliary push rod 41 extend and retract, the limit block 5 slides a corresponding distance within the sliding groove 6. The limit block 5 prevents the main push rod 33 or the auxiliary push rod 41 from moving excessively, thus ensuring the normal operation of the cleaning mechanism 3. The grinding fluid and debris scraped off by the scraper 7 fall into the water collection tank 14 below, mix with the grinding fluid in the water collection tank 14, and then flow together into the filter plate 92 inside the collection tank 91. The filter plate 92 filters out the debris from the grinding fluid, causing the grinding fluid to fall into the collection tank 91, while the debris remains on the filter plate 92. This achieves the separation of grinding fluid and debris, facilitates the recycling of grinding fluid and debris, and improves the collection efficiency of grinding fluid and debris. After the shaft is finished being processed, the equipment stops working.

[0054] 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 shaft grinding machine, comprising a bed, wherein a head fixing frame and a tail fixing frame are respectively installed at both ends of the bed, characterized in that: The grinding bed is equipped with a grinding assembly, a cleaning mechanism, and a collection assembly. The grinding assembly includes a mounting base, a grinding wheel, and a cover. The mounting base is installed on one side of the grinding bed, and the cover is connected to the mounting base. The grinding wheel is located inside the cover, and the bottom of the cover is a downward-sloping discharge ramp. The cleaning mechanism includes a drive rod, a driven rod, and a drive assembly. The drive rod and the driven rod are respectively installed on both sides inside the cover. A main push rod and an auxiliary push rod are respectively connected inside the drive rod and the driven rod. A cleaning scraper is fixed between the main push rod and the auxiliary push rod. The drive assembly is installed on the cover and connected to the drive rod. The drive assembly is used to drive the drive rod to drive the driven rod to swing back and forth inside the cover. During the swinging process, the main push rod synchronously drives the auxiliary push rod to drive the cleaning scraper to scrape off the debris on the discharge ramp. A water collection tank is provided on the grinding bed and is connected to the collection assembly. Grinding fluid and debris generated during the machining of the shaft are discharged into the collection assembly through the water collection tank. Fixed shafts are fixedly installed on both sides inside the housing, and a sector-shaped toothed ring is fixedly installed on the side of the housing away from the mounting base, with the sector-shaped toothed ring located below the fixed shafts; The driving rod is longer than the driven rod. The driving rod is rotatably mounted on a fixed shaft away from the mounting base. The driven rod is rotatably mounted on another fixed shaft. The grinding wheel is located between the driving rod and the driven rod. A guide groove is provided on the driving rod, which is located above the fixed shaft. A transmission shaft is rotatably mounted on the driving rod, which is located below the fixed shaft. One end of the transmission shaft passes through the driving rod. A transmission gear and a driven gear are coaxially fixedly connected to both ends of the transmission shaft, respectively. The transmission gear is located outside the driving rod and meshes with the sector-shaped gear ring. The driven gear is located inside the driving rod. Limiting blocks are fixedly installed at the lower ends of both the driving rod and the driven rod. The main push rod and the auxiliary push rod are slidably installed in the driving rod and the driven rod, respectively. Sliding grooves are provided on both the main push rod and the auxiliary push rod. The two limiting blocks are located in the two sliding grooves, respectively. A driving rack is fixedly installed on the side of the main push rod. The driving rack meshes with the driven gear. Fixed rods are fixedly connected to both sides of the cleaning scraper. The two fixed rods are fixedly installed at the lower ends of the main push rod and the auxiliary push rod, respectively.

2. The shaft grinding equipment according to claim 1, characterized in that: The cover is fixedly installed on the mounting base, and a discharge port is provided inside the cover, which is located at the upper end of the discharge slope.

3. The shaft grinding equipment according to claim 1, characterized in that: The drive assembly includes a motor and a drive disk. The motor is fixedly installed on the side of the cover away from the mounting base. The output shaft of the motor is coaxially and fixedly connected to the drive disk. The drive disk is rotatably installed inside the cover. An eccentric shaft is eccentrically provided on the side of the drive disk. The eccentric shaft is fixedly connected to the drive disk and slidably connected in the guide groove.

4. The shaft grinding equipment according to claim 1, characterized in that: The grinding assembly further includes a drive motor and a drive shaft. The drive motor and the drive shaft are sequentially mounted on the mounting base. The drive motor is fixedly connected to the mounting base, and the drive shaft is rotatably connected to the mounting base. The output shaft of the drive motor is connected to one end of the drive shaft via a belt, and the other end of the drive shaft passes through the housing. The grinding wheel is coaxially and fixedly connected to that end of the drive shaft.

5. The shaft grinding equipment according to claim 4, characterized in that: A nozzle for spraying grinding fluid is fixedly installed on the outside of the casing, and the nozzle is aligned with the grinding wheel.

6. The shaft grinding equipment according to claim 1, characterized in that: The collection assembly includes a collection box placed on the side of the bed, on the side of the cover away from the mounting base. A filter plate is fixedly installed on the opening of the collection box, and the filter plate is used to filter out debris in the grinding fluid.

7. A shaft grinding device according to claim 6, characterized in that: The main body is fixedly mounted with a guide rail. The head fixing bracket and the tail fixing bracket are both slidably mounted on the guide rail. The water collection tank surrounds the outside of the guide rail and the mounting base. The cover is located above the water collection tank. A drain outlet is opened on the side of the water collection tank near the collection box. A drain pipe is fixedly connected to the drain outlet. The drain pipe corresponds to the top of the opening of the collection box. A baffle is also fixedly connected at the processing position of the bed. The baffle is located outside the water collection tank.

8. A grinding and polishing method for automobile wheel axles, characterized in that: The specific steps of using the shaft grinding equipment according to any one of claims 1-7 are as follows: First, the shaft to be processed is clamped onto the machine bed using the head and tail fixing brackets, positioning the shaft at the processing position. Then, the grinding wheel of the grinding assembly rotates to grind the shaft. During the grinding process, the drive assembly drives the drive rod and driven rod to swing the cleaning scraper back and forth inside the housing. At the same time, the main push rod pushes the cleaning scraper to keep it in contact with the discharge ramp as the drive rod swings, thereby effectively scraping off the grinding fluid and debris on the discharge ramp. The debris is then discharged into the collection assembly through the water collection tank on the machine bed. After the shaft is processed, the equipment stops working.

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