A gear grinding device

Abstract

This invention belongs to the field of gear processing technology, specifically a gear grinding device, including a worktable; a turntable is rotatably connected to the top surface of the worktable; two pairs of evenly arranged mounting seats are rotatably mounted on the top surface of the turntable; a rotating tray is mounted on the top surface of the mounting seats; a double-ended stud is rotatably connected to the top surface of the tray; both ends of the double-ended stud are threadedly connected to support columns, and the support columns are slidably connected to the top surface of the mounting seats; a clamping rod is fixedly connected to the top surface of the support columns, and the diameter of the clamping rod is smaller than the diameter of the support columns; a support frame is slidably connected to the top surface of the worktable. Through the cooperation of the turntable, mounting seats, tray, double-ended studs, support columns, clamping rods, and grinding disc, the grinding disc can grind two gears at the same time, thereby improving the grinding efficiency. During gear grinding, the user can also feed another pair of gears, further improving the grinding efficiency.

Description

Technical Field

[0001] This invention belongs to the field of gear processing technology, specifically a gear grinding device. Background Technology

[0002] The gear manufacturing process mainly includes: blank forging, normalizing, rough turning, heat treatment, finish turning, gear making, gear shaving, carburizing and quenching or induction hardening, gear grinding, tooth end chamfering and polishing. Finally, after inspection, the gear manufacturing is completed. Among these processes, gear grinding is the key process in gear finishing and is crucial for improving gear transmission efficiency.

[0003] In the existing technology, the gear grinding process is mainly carried out by a gear grinding machine. The gear grinding machine mainly consists of core components such as a spindle, a worktable, a grinding wheel head, an indexing mechanism, and a control system. The spindle drives the workpiece to rotate, the worktable fixes the workpiece and controls its movement trajectory, the grinding wheel head installs the grinding wheel for grinding, the indexing mechanism achieves precise tooth division through an indexing plate or worm gear pair, and the control system adjusts parameters such as rotational speed and feed rate to complete the grinding of the gear.

[0004] In existing technology, gear grinding machines grind a single gear with a single grinding wheel, which cannot grind multiple gears at the same time, thus affecting the grinding efficiency of the gears.

[0005] Therefore, the present invention provides a gear grinding apparatus. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this invention to solve its technical problem is as follows: A gear grinding device according to this invention includes a worktable; a turntable is rotatably connected to the top surface of the worktable, and the turntable is driven by a servo motor; two pairs of evenly arranged mounting seats are rotatably connected to the top surface of the turntable, and the mounting seats are driven by a servo motor; a rotating tray is mounted on the top surface of the mounting seats, and the tray is driven by a servo motor; a double-ended stud is rotatably connected to the top surface of the tray; both ends of the double-ended stud are threadedly connected to support columns, and the support columns are slidably connected to the top surface of the mounting seats; a clamping rod is fixedly connected to the top surface of the support columns, and the diameter of the clamping rod is smaller than the diameter of the support columns; a support frame is slidably connected to the top surface of the worktable; the support frame is driven by a linear motor and is located on top of the turntable; a support arm is slidably connected to the top of the support frame, and the support arm is driven by a hydraulic system; a drive rod is rotatably connected to the bottom of the support arm, and the drive rod is driven by a servo motor; a grinding disc is installed at the end of the drive rod.

[0008] Preferably, the support arm surface has a mounting hole at the top of the drive rod; a transmission gear is rotatably connected in the mounting hole, and the transmission gear is driven by a servo motor; both ends of the transmission gear extend out of the mounting hole; toothed plates are slidably connected to both sides of the support arm; both toothed plates are meshed with the transmission gear and are located on both sides of the transmission gear; a connecting seat is fixedly connected to the bottom of the toothed plate; a pair of grinding discs are provided, and the two grinding discs are connected to the connecting seat through a connecting assembly; the connecting assembly is also used to connect the grinding discs to the drive rod.

[0009] Preferably, the connecting assembly includes a connecting rod; the surface of the connecting rod is rotatably connected to the bottom of the toothed plate; both ends of the drive rod are equipped with ejector-type air slip rings; the telescopic end of the ejector-type air slip ring is fixedly connected to an insert rod; a slot is provided at one end of the connecting rod near the support arm; a magnetic post is installed at the bottom of the slot, and the insert rod is made of magnetizable metal.

[0010] Preferably, the end of the insertion rod near the magnet post is fixedly connected to two pairs of evenly arranged abutments, and the thickness of the abutment on the side near the magnet post is greater than the thickness on the side away from the magnet post; the abutment is arc-shaped and elastic; and a magnet ball is fixedly connected to the end of the magnet post away from the bottom of the slot.

[0011] Preferably, the end of the connecting rod away from the support arm has a threaded hole; a threaded rod is threaded into the threaded hole; two pairs of evenly spaced ejector grooves are formed on the surface of the connecting rod, and the ejector grooves communicate with the threaded hole; a retaining plate is slidably connected in the ejector groove, and the retaining plate is inclined on one side of the ejector groove; a retaining groove is formed on the inner wall of the grinding disc at the corresponding position of the retaining plate.

[0012] Preferably, a rubber sleeve is fixedly connected to the surface of the connecting rod at the top groove position; an elastic band is fixedly connected to the groove opening; and the side of the elastic band away from the card plate is fixedly connected to the inner wall of the rubber sleeve.

[0013] Preferably, a support plate is fixedly connected to the bottom surface of the support arm; insert plates are fixedly connected to both ends of the support plate; and connecting grooves are provided on the bottom surfaces of the two connecting seats at the corresponding positions of the insert plates.

[0014] Preferably, a rubber pad is fixed to the inner wall of the connecting groove; the thickness of the bottom of the rubber pad is less than the thickness of its top.

[0015] Preferably, the top surface of the workbench is slidably connected to both sides of the turntable with movable seats; both movable seats are driven by linear motor two, and the line connecting the two movable seats is perpendicular to the support frame; a rotating rod is rotatably connected to the top surface of the movable seat, and the rotating rod is driven by servo motor six; a groove is opened on the side of the rotating rod near the turntable, and the groove opening and bottom are both hexagonal; a limiting post is fixedly connected to the side of the double-headed stud away from the support arm, and the limiting post is a regular hexagonal prism.

[0016] Preferably, an electric push rod is rotatably connected to the top surface of the movable seat, and the electric push rod is driven by a servo motor; a support plate is fixedly connected to the top of the electric push rod; a pair of symmetrically arranged vacuum suction cups are provided on the bottom surface of the support plate, and the vacuum suction cups are fixedly connected to the support plate by bolts; conveyor belts are installed on both sides of the movable seat on the top surface of the worktable.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. The gear grinding device of the present invention, through the cooperation of a turntable, mounting base, tray, double-ended stud, support column, clamping rod and grinding disc, enables the grinding disc to grind two gears at the same time, thereby improving the grinding efficiency of the gears. During the gear grinding, the user can also feed another pair of gears, which further improves the grinding efficiency of the gears.

[0019] 2. The gear grinding device of the present invention enables the wear of the grinding disc to be quickly replaced through the cooperation of the transmission gear, the gear plate, the connecting seat and the connecting rod, so as to avoid the grinding of the gear being delayed for a long time due to the excessive time for replacing the grinding disc, thereby affecting the grinding efficiency of the gear. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2 This is a schematic diagram of the mounting base in this invention;

[0023] Figure 3 This is a schematic diagram of the support arm in this invention;

[0024] Figure 4 This is a partial cross-sectional view of the support arm in this invention;

[0025] Figure 5 This is a schematic diagram of the connecting seat in this invention;

[0026] Figure 6 This is a cross-sectional view of the connecting rod in this invention;

[0027] Figure 7 This is a schematic diagram of the structure of the grinding disc in this invention;

[0028] Figure 8 This is a partial cross-sectional view of the connector in this invention;

[0029] Figure 9 This is a schematic diagram of the movable base in this invention;

[0030] In the diagram: 1. Workbench; 2. Turntable; 3. Mounting base; 4. Tray; 5. Double-ended stud; 6. Support column; 7. Clamping rod; 8. Support frame; 9. Support arm; 10. Drive rod; 11. Grinding disc; 12. Mounting hole; 13. Transmission gear; 14. Gear plate; 15. Connecting seat; 16. Connecting rod; 17. Ejector-type air slip ring; 18. Insert rod; 19. Slot; 20. Magnetic column; 21. Backing plate 22. Magnetic ball; 23. Threaded hole; 24. Threaded rod; 25. Ejector groove; 26. Clamping plate; 261. Clamping groove; 27. Rubber sleeve; 28. Elastic band; 29. ​​Support plate; 30. Insert plate; 31. Connecting groove; 32. Rubber pad; 33. Moving seat; 34. Rotating rod; 35. Groove; 36. Limiting post; 37. Electric actuator; 38. Support plate; 39. Vacuum suction cup; 40. Conveyor belt. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0032] like Figures 1 to 4As shown in the embodiment of the present invention, a gear grinding device includes a worktable 1; a turntable 2 is rotatably connected to the top surface of the worktable 1, and the turntable 2 is driven by a servo motor; two pairs of evenly arranged mounting seats 3 are rotatably connected to the top surface of the turntable 2, and the mounting seats 3 are driven by a servo motor; a tray 4 is rotatably connected to the top surface of the mounting seats 3, and the tray 4 is driven by a servo motor; a double-ended stud 5 is rotatably connected to the top surface of the tray 4; both ends of the double-ended stud 5 are threadedly connected to support columns 6, and the support columns 6 are connected to the mounting seats. The top surface of the support column 6 is slidably connected; a clamping rod 7 is fixedly connected to the top surface of the support column 6, and the diameter of the clamping rod 7 is smaller than the diameter of the support column 6; a support frame 8 is slidably connected to the top surface of the worktable 1; the support frame 8 is driven by a linear motor and is located on the top of the turntable 2; a support arm 9 is slidably connected to the top of the support frame 8 and is driven by a hydraulic system; a drive rod 10 is rotatably connected to the bottom of the support arm 9 and is driven by a servo motor; a grinding disc 11 is installed at the end of the drive rod 10.To improve the grinding efficiency of gears during operation, this embodiment of the invention can be used. First, the user needs to screw on two opposing double-ended studs 5. The double-ended studs 5 drive the paired support pillars 6 and clamping rods 7 closer together. Then, the user can place the gear to be ground onto the surface of the paired clamping rods 7, with the bottom resting on the top surface of the support pillars 6. Subsequently, the user screws on the double-ended studs 5 again, causing the paired support pillars 6 and clamping rods 7 to move away from each other, thus making the clamping rods 7 firmly press against the inner wall of the gear. Two gears to be ground are fixed to the top surfaces of two opposing mounting bases 3. The turntable 2 then rotates, moving the two mounting bases 3 with the fixed gears to both sides of the grinding disc 11. The two mounting bases 3 then move closer together, causing the gears to be ground to move closer together as well, until the gear surfaces are in contact with the side surfaces of the grinding disc 11. The drive rod 10 then rotates the grinding disc 11, and the hydraulic system moves the support arm 9 up and down, thus completing the grinding of one tooth surface of the gear. The tray 4 then rotates the double-ended stud 5, support column 6, clamping rod 7, and the fixed gear, causing the other tooth surface of the gear to contact the grinding disc 11, thus beginning the grinding of the next tooth surface. This grinding operation is repeated continuously until every tooth of the gear is ground. During the grinding process, the user can also mount another gear to be ground on the top surface of another pair of mounting bases 3. Once the gear being ground is finished, the turntable 2 rotates in conjunction with the movement of the mounting bases 3, allowing the gear to be ground to continue grinding. The polished gear is removed from the polishing disc 11, while another gear to be polished moves to the polishing disc 11, thus initiating the next round of polishing. Through the cooperation of the turntable 2, mounting base 3, tray 4, double-ended stud 5, support column 6, clamping rod 7, and polishing disc 11, the polishing disc 11 can polish two gears simultaneously, thereby improving polishing efficiency. Furthermore, during the polishing process, the user can also feed another pair of gears, further enhancing the polishing efficiency.

[0033] like Figure 1 , Figure 3 and Figure 4As shown, the support arm 9 has a mounting hole 12 on the top of the drive rod 10; a transmission gear 13 is rotatably connected in the mounting hole 12, and the transmission gear 13 is driven by a servo motor; both ends of the transmission gear 13 extend out of the mounting hole 12; toothed plates 14 are slidably connected to both sides of the support arm 9; both toothed plates 14 are meshed with the transmission gear 13 and are located on both sides of the transmission gear 13; a connecting seat 15 is fixedly connected to the bottom of the toothed plate 14; a pair of grinding discs 11 are provided, and the two grinding discs 11 are connected to the connecting seat 15 through a connecting assembly; the connecting assembly is also used to connect the grinding discs 11 and the drive rod 10; during operation, after the grinding discs 11 grind the gears for a long time, their surfaces will inevitably wear down, and in order to improve the grinding effect of the gears, the grinding discs 11 need to be replaced. For this purpose, the user needs to control the rotation of the transmission gear 13 at the mounting hole 12. This causes the toothed plates 14 on both sides of the transmission gear 13 to rise and fall, thereby raising one side of the toothed plate 14 of the grinding disc 11 to be replaced. The rising toothed plate 14 will also drive the grinding disc 11 to be replaced to rise through the connecting seat 15 and the connecting rod 16. The unworn grinding disc 11 on the other side will be moved to the drive rod 10 of the support arm 9 by the toothed plate 14. Then the connecting component at the drive rod 10 will complete the connection between the drive rod 10 and the connecting rod 16, so that the grinding disc 11 can be driven by the drive rod 10. Then the support frame 8 slides, so that the grinding disc 11 can move between the two gears to be ground, and then continue the subsequent grinding operation. Thus, through the cooperation of the transmission gear 13, toothed plate 14, connecting seat 15 and connecting rod 16, the worn grinding disc 11 can be quickly replaced, avoiding the grinding of the gears being delayed for a long time due to the long replacement time of the grinding disc 11, which would affect the grinding efficiency of the gears.

[0034] like Figures 3 to 6As shown, the connecting assembly includes a connecting rod 16; the surface of the connecting rod 16 is rotatably connected to the bottom of the toothed plate 14; both ends of the drive rod 10 are equipped with ejector-type air slip rings 17; the telescopic end of the ejector-type air slip ring 17 is fixedly connected to an insert rod 18; a slot 19 is provided at one end of the connecting rod 16 near the support arm 9; a magnet post 20 is installed at the bottom of the slot 19, and the insert rod 18 is made of magnetizable metal; during operation, when the connecting rod 16 needs to connect with the drive rod 10, the drive rod 10 will push the insert rod 18 towards the connecting rod 16 through the ejector-type air slip ring 17. The slot 19 on the surface of the connecting rod 16 moves, eventually allowing the insert rod 18 to be inserted into the slot 19. Since the insert rod 18 is made of magnetizable metal, it will be attracted by the magnetic post 20, thus connecting the magnetic post 20, the insert rod 18, and the connecting rod 16 into a whole. Then, the drive rod 10 can drive the telescopic end of the ejector air ring 17, the insert rod 18, and the connecting rod 16 to rotate together, which in turn drives the grinding disc 11 to rotate. Thus, the entire connection process does not require manual operation by the user, which reduces the difficulty of operation for the user and improves the efficiency of replacement.

[0035] like Figures 5 to 6 As shown, the insertion rod 18 is fixedly connected to two pairs of evenly arranged abutment plates 21 at one end near the magnet post 20, and the thickness of the abutment plate 21 on the side near the magnet post 20 is greater than the thickness on the side away from the magnet post 20; the abutment plate 21 is arc-shaped and elastic; a magnet ball 22 is fixedly connected to the end of the magnet post 20 away from the bottom of the slot 19; during operation, as the insertion rod 18 is inserted into the slot 19, the magnet ball 22 at the end of the magnet post 20 will squeeze the abutment plate 21 at the end of the insertion rod 18 and spread the four abutment plates 21 outwards, and finally press the abutment plates 21 tightly against the inner wall of the slot 19, thereby increasing the maximum static friction between the two, thereby further improving the stability of the connection between the insertion rod 18 and the connecting rod 16 and preventing relative sliding between the two.

[0036] like Figures 6 to 7As shown, the connecting rod 16 has a threaded hole 23 at the end away from the support arm 9; a threaded rod 24 is threadedly connected to the threaded hole 23; two pairs of evenly arranged ejector grooves 25 are formed on the surface of the connecting rod 16, and the ejector grooves 25 communicate with the threaded hole 23; a retaining plate 26 is slidably connected in the ejector groove 25, and the retaining plate 26 is inclined on one side of the ejector groove 25; a retaining groove 261 is formed on the inner wall of the grinding disc 11 at the corresponding position of the retaining plate 26; during operation, when the user needs to remove the worn grinding disc 11, the user needs to screw the threaded rod 24 at the end of the connecting rod 16 until the threaded rod 24 disengages from the threaded hole 23. At this time, the retaining plate 26 is no longer squeezed by the threaded rod 24, and then the user... The clamping plate 26 can then be pressed back into the ejector groove 25, thus the clamping plate 26 no longer presses against the groove 261 on the inner wall of the grinding disc 11. Therefore, the user can easily remove the grinding disc 11 from the surface of the connecting rod 16 and replace it with a new grinding disc 11, aligning the groove 261 on the inner wall of the grinding disc 11 with the ejector groove 25 on the surface of the connecting rod 16. Then, the threaded rod 24 is screwed back into the threaded hole 23. During the process of screwing the threaded rod 24 into the threaded hole 23, the clamping plate 26 in the ejector groove 25 will be ejected from the ejector groove 25 and reinserted into the groove 261, thereby further improving the stability of the connection between the connecting rod 16 and the grinding disc 11 and preventing relative rotation between the grinding disc 11 and the connecting rod 16 when the connecting rod 16 rotates.

[0037] like Figure 6 As shown, a rubber sleeve 27 is fixedly connected to the surface of the connecting rod 16 at the position of the ejection groove 25; an elastic band 28 is fixedly connected to the opening of the slot 261; the side of the elastic band 28 away from the clamping plate 26 is fixedly connected to the inner wall of the rubber sleeve 27; during operation, when the clamping plate 26 ejects from the ejection groove 25, the clamping plate 26 will squeeze the elastic band 28 and the rubber sleeve 27, and squeeze them together into the slot 261. Since the rubber sleeve 27 is elastic, it can effectively fill the gap between the clamping plate 26 and the slot 261, thereby preventing the connection from being interrupted. When the connecting rod 16 drives the grinding disc 11 to rotate, the clamping plate 26 and the clamping groove 261 collide due to the gap, which causes the grinding disc 11 to vibrate, thus affecting the grinding accuracy of the grinding disc 11 on the gear. When the threaded rod 24 is dislodged from the threaded hole 23, the elastic band 28 squeezed by the clamping plate 26 will recover, thus pressing the clamping plate 26 back into the ejection groove 25. Therefore, the user does not need to manually press the clamping plate 26 back into the ejection groove 25, which simplifies the user's operation and reduces the operation difficulty of the embodiment of the present invention.

[0038] like Figure 1 , Figure 3 and Figure 8As shown, a support plate 29 is fixedly connected to the bottom surface of the support arm 9; both ends of the support plate 29 are fixedly connected to insert plates 30; the bottom surfaces of the two connecting seats 15 are provided with connecting grooves 31 at the corresponding positions of the insert plates 30; during operation, when the toothed plate 14 drives the connecting seat 15 to descend, the insert plates 30 at the ends of the support plate 29 will be inserted into the connecting grooves 31 on the bottom surface of the connecting seat 15, and the support plate 29 will also support the bottom surface of the connecting seat 15. Thus, the support plate 29 can cooperate with the toothed plate 14 to clamp the connecting seat 15, while the insert plates 30 limit the vibration of the connecting seat 15, thereby ensuring the grinding accuracy of the grinding disc 11.

[0039] like Figure 8 As shown, a rubber pad 32 is fixed to the inner wall of the connecting groove 31; the thickness of the bottom of the rubber pad 32 is less than the thickness of its top; during operation, when the insert plate 30 is inserted into the connecting groove 31, the opening at the top of the rubber pad 32 gradually narrows, so the insert plate 30 is eventually clamped by the rubber pad 32, thereby further improving the stability of the connection between the two.

[0040] like Figure 1 , Figure 2 and Figure 9 As shown, the top surface of the workbench 1 is slidably connected to both sides of the turntable 2 with movable seats 33; both movable seats 33 are driven by linear motor 2, and the line connecting the two movable seats 33 is perpendicular to the support frame 8; a rotating rod 34 is rotatably connected to the top surface of the movable seat 33, and the rotating rod 34 is driven by servo motor 6; a groove 35 is provided on the side of the rotating rod 34 near the turntable 2, and the groove opening and bottom of the groove 35 are both hexagonal; a limit post 36 is fixedly connected to the side of the double-headed stud 5 away from the support arm 9. Furthermore, the limiting post 36 is set in the shape of a regular hexagonal prism. During operation, when it is necessary to tighten the double-ended stud 5, the two moving seats 33 will move towards the mounting seat 3 under the drive of the linear motor 2, and finally make the groove 35 at the end of the rotating rod 34 fit onto the limiting post 36 at the end of the double-ended stud 5. Then, the servo motor 6 drives the rotating rod 34 to rotate, which can drive the limiting post 36 and the double-ended stud 5 to rotate. This can quickly release the fixing of the gears on the top surface of the two mounting seats 3, thereby improving the efficiency of the user in unloading the gears.

[0041] like Figure 1 and Figure 9As shown, an electric actuator 37 is rotatably connected to the top surface of the movable seat 33, and the electric actuator 37 is driven by a servo motor; a support plate 38 is fixedly connected to the top of the electric actuator 37; a pair of symmetrically arranged vacuum suction cups 39 are provided on the bottom surface of the support plate 38, and the vacuum suction cups 39 are fixedly connected to the support plate 38 by bolts; conveyor belts 40 are installed on both sides of the movable seat 33 on the top surface of the worktable 1; during operation, when the gear polished on the top surface of the mounting seat 3 is released from its fixed position, the electric actuator 37 will drive the support plate 38 to rotate to the top surface of the released gear, and then the movable seat 33 will move, so that the vacuum suction cups 39 on the surface of the support plate 38 can... The electric actuator 37 moves the support plate 38 and the vacuum suction cup 39 on it down to the top surface of the gear, and then the vacuum suction cup 39 can adhere to the top surface of the gear and hold the gear. Then the electric actuator 37 rises, so that the gear completely disengages from the clamping rod 7 and the supporting column 6. Then the electric actuator 37 rotates again to move the held gear to one side of the conveyor belt 40. Then the electric actuator 37 uses the support plate 38 and the vacuum suction cup 39 to hold the gear to be ground on the other side of the conveyor belt 40 and moves it to the mounting base 3, thus completing the loading operation. This realizes the automatic loading and unloading of gears, thereby further improving the grinding efficiency.

[0042] To improve the grinding efficiency of gears during operation, this embodiment of the invention can be used. First, the user needs to screw on two opposing double-ended studs 5. The double-ended studs 5 drive the paired support pillars 6 and clamping rods 7 closer together. Then, the user can place the gear to be ground onto the surface of the paired clamping rods 7, with the bottom resting on the top surface of the support pillars 6. Subsequently, the user screws on the double-ended studs 5 again, causing the paired support pillars 6 and clamping rods 7 to move away from each other, thus making the clamping rods 7 firmly press against the inner wall of the gear. Two gears to be ground are fixed to the top surfaces of two opposing mounting bases 3. The turntable 2 then rotates, moving the two mounting bases 3 with the fixed gears to both sides of the grinding disc 11. The two mounting bases 3 then move closer together, causing the gears to be ground to move closer together as well, until the gear surfaces are in contact with the side surfaces of the grinding disc 11. The drive rod 10 then rotates the grinding disc 11, and the hydraulic system moves the support arm 9 up and down, thus completing the grinding of one tooth surface of the gear. The tray 4 then rotates the double-ended stud 5, support column 6, clamping rod 7, and the fixed gear, causing the other tooth surface of the gear to contact the grinding disc 11, thus beginning the grinding of the next tooth surface. This grinding operation is repeated continuously until every tooth of the gear is ground. During the grinding process, the user can also mount another gear to be ground on the top surface of another pair of mounting bases 3. Once the gear being ground is finished, the turntable 2 rotates in conjunction with the movement of the mounting bases 3, allowing the gear to be ground to continue grinding. The polished gear is removed from the polishing disc 11, while another gear to be polished moves to the polishing disc 11, thus starting the next round of polishing. Through the cooperation of the turntable 2, mounting base 3, tray 4, double-ended stud 5, support column 6, clamping rod 7 and polishing disc 11, the polishing disc 11 can polish two gears at the same time, thereby improving the polishing efficiency. During the gear polishing, the user can also feed another pair of gears, which further improves the polishing efficiency.

[0043] After prolonged grinding of gears, the surface of the grinding disc 11 will inevitably wear down. To improve the grinding effect of the gears in the future, the grinding disc 11 needs to be replaced. To do this, the user needs to control the rotation of the transmission gear 13 at the mounting hole 12, which in turn drives the tooth plates 14 on both sides of the transmission gear 13 to rise and fall. This causes the tooth plate 14 on one side of the grinding disc 11 to be replaced to rise. The rising tooth plate 14 will also drive the grinding disc 11 to be replaced to rise through the connecting seat 15 and the connecting rod 16. Meanwhile, the unworn grinding disc 11 on the other side will be moved to the drive rod of the support arm 9 by the tooth plate 14. At point 10, the connecting assembly at point 10 will connect the drive rod 10 and the connecting rod 16, allowing the grinding disc 11 to be driven by the drive rod 10. Then, the support frame 8 slides, allowing the grinding disc 11 to move between the two gears to be ground, and then continue the subsequent grinding operation. Thus, through the cooperation of the transmission gear 13, the tooth plate 14, the connecting seat 15 and the connecting rod 16, the worn grinding disc 11 can be quickly replaced, avoiding the grinding of the gears being delayed for a long time due to the long replacement time of the grinding disc 11, which would affect the grinding efficiency of the gears.

[0044] When the connecting rod 16 needs to be connected to the driving rod 10, the driving rod 10 will push the insert rod 18 towards the slot 19 on the surface of the connecting rod 16 through the ejector air slip ring 17, and finally insert the insert rod 18 into the slot 19. Since the insert rod 18 is made of magnetizable metal, the insert rod 18 will be attracted by the magnetic post 20, thereby connecting the magnetic post 20, the insert rod 18 and the connecting rod 16 into a whole. Then the driving rod 10 can drive the telescopic end of the ejector air slip ring 17, the insert rod 18 and the connecting rod 16 to rotate together, and finally drive the grinding disc 11 to rotate. Thus, the user does not need to operate manually during the entire connection process, which reduces the user's operating difficulty and improves the replacement efficiency.

[0045] During the insertion of the insertion rod 18 into the slot 19, the magnetic ball 22 at the end of the magnetic post 20 will press the abutment plate 21 at the end of the insertion rod 18 and spread the four abutment plates 21 outwards, and finally press the abutment plates 21 tightly against the inner wall of the slot 19, thereby increasing the maximum static friction between the two, which further improves the stability of the connection between the insertion rod 18 and the connecting rod 16 and avoids relative sliding between the two.

[0046] When the user needs to remove the worn grinding disc 11, the user needs to screw the threaded rod 24 at the end of the connecting rod 16 until the threaded rod 24 disengages from the threaded hole 23. At this point, the clamping plate 26 is no longer squeezed by the threaded rod 24, and the user can then press the clamping plate 26 back into the ejection groove 25. Thus, the clamping plate 26 no longer squeezes the groove 261 on the inner wall of the grinding disc 11, so the user can easily remove the grinding disc 11 from the surface of the connecting rod 16 and replace it with a new grinding disc 11. The groove 261 on the inner wall of the grinding disc 11 is aligned with the ejector groove 25 on the surface of the connecting rod 16. Then the threaded rod 24 is screwed back into the threaded hole 23. During the process of screwing the threaded rod 24 into the threaded hole 23, the retaining plate 26 in the ejector groove 25 will be ejected from the ejector groove 25 and reinserted into the groove 261, thereby further improving the stability of the connection between the connecting rod 16 and the grinding disc 11 and preventing relative rotation between the grinding disc 11 and the connecting rod 16 when the connecting rod 16 rotates.

[0047] When the clamping plate 26 pushes out of the ejection slot 25, it squeezes the elastic band 28 and the rubber sleeve 27 together and pushes them into the clamping groove 261. Since the rubber sleeve 27 is elastic, it can effectively fill the gap between the clamping plate 26 and the clamping groove 261, thereby preventing the connecting rod 16 from driving the grinding disc 11 to rotate. This prevents the clamping plate 26 and the clamping groove 261 from colliding due to the gap, which would cause the grinding disc 11 to vibrate and affect the grinding accuracy of the grinding disc 11 on the gears. When the threaded rod 24 comes out of the threaded hole 23, the elastic band 28 squeezed by the clamping plate 26 will recover, thereby pressing the clamping plate 26 back into the ejection slot 25. Thus, the user does not need to manually press the clamping plate 26 back into the ejection slot 25, which simplifies the user's operation and reduces the operation difficulty of this embodiment of the invention.

[0048] When the toothed plate 14 drives the connecting seat 15 to descend, the insert plate 30 at the end of the support plate 29 will be inserted into the connecting groove 31 on the bottom surface of the connecting seat 15, and the support plate 29 will also support the bottom surface of the connecting seat 15. Thus, the support plate 29 can cooperate with the toothed plate 14 to clamp the connecting seat 15, while the insert plate 30 restricts the vibration of the connecting seat 15, thereby ensuring the grinding accuracy of the grinding disc 11.

[0049] When the insert plate 30 is inserted into the connecting groove 31, the opening at the top of the rubber pad 32 gradually narrows, so the insert plate 30 is eventually clamped by the rubber pad 32, thereby further improving the stability of the connection between the two.

[0050] When the double-ended stud 5 needs to be tightened, the two moving seats 33 will move towards the mounting seat 3 under the drive of the linear motor 2, and finally make the groove 35 at the end of the rotating rod 34 fit onto the limiting post 36 at the end of the double-ended stud 5. Then the servo motor 6 drives the rotating rod 34 to rotate, which can drive the limiting post 36 and the double-ended stud 5 to rotate. This can quickly release the gears on the top surface of the two mounting seats 3, thereby improving the efficiency of the user in unloading the gears.

[0051] After the gear polished on the top surface of the mounting base 3 is released from its fixed position, the electric push rod 37 drives the support plate 38 to rotate to the top surface of the released gear. Then, the moving base 33 moves so that the vacuum suction cup 39 on the surface of the support plate 38 can be aligned with the top surface of the gear. Then, the electric push rod 37 drives the support plate 38 and the vacuum suction cup 39 on it to descend, so that the vacuum suction cup 39 can adhere to the top surface of the gear and hold the gear. Then, the electric push rod 37 rises, so that the gear completely disengages from the clamping rod 7 and the supporting column 6. Then, the electric push rod 37 rotates again, moving the held gear to one side of the conveyor belt 40. Then, the electric push rod 37 uses the support plate 38 and the vacuum suction cup 39 to hold the gear to be polished on the other side of the conveyor belt 40 and moves it to the mounting base 3, thus completing the loading operation. This realizes the automatic loading and unloading of gears, thereby further improving the polishing efficiency.

[0052] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gear grinding apparatus, characterized in that: The device includes a workbench; a turntable is rotatably connected to the top surface of the workbench; two pairs of evenly spaced mounting seats are rotatably mounted on the top surface of the turntable; a rotating tray is mounted on the top surface of the mounting seats; a double-ended stud is rotatably connected to the top surface of the tray; both ends of the double-ended stud are threadedly connected to support columns, and the support columns are slidably connected to the top surface of the mounting seats; a clamping rod is fixedly connected to the top surface of the support columns, and the diameter of the clamping rod is smaller than the diameter of the support column; a support frame is slidably connected to the top surface of the workbench; a support arm is slidably connected to the top of the support frame; a drive rod is rotatably connected to the bottom of the support arm; and a grinding disc is mounted on the end of the drive rod. The support arm has a mounting hole at the top of the drive rod; a transmission gear is rotatably connected to the mounting hole; both ends of the transmission gear extend out of the mounting hole; toothed plates are slidably connected to both sides of the support arm; both toothed plates are meshed with the transmission gear and are located on opposite sides of the transmission gear; a connecting seat is fixedly connected to the bottom of the toothed plates; a pair of grinding discs are provided, and the two grinding discs are connected to the connecting seat through a connecting assembly; the connecting assembly is also used to connect the grinding discs to the drive rod. The connecting assembly includes a connecting rod; the surface of the connecting rod is rotatably connected to the bottom of the toothed plate; both ends of the drive rod are equipped with ejector-type air slip rings; the telescopic end of the ejector-type air slip ring is fixedly connected to an insert rod; a slot is provided at one end of the connecting rod near the support arm; a magnetic post is installed at the bottom of the slot, and the insert rod is made of magnetizable metal. Two pairs of evenly spaced abutments are fixedly connected to one end of the insert rod near the magnet post, and the thickness of the abutment on the side near the magnet post is greater than the thickness on the side away from the magnet post; the abutment is arc-shaped and elastic; a magnet ball is fixedly connected to the end of the magnet post away from the bottom of the slot.

2. The gear grinding apparatus according to claim 1, characterized in that: The connecting rod has a threaded hole at the end away from the support arm; a threaded rod is threaded into the threaded hole; two pairs of evenly spaced ejector grooves are formed on the surface of the connecting rod, and the ejector grooves communicate with the threaded hole; a retaining plate is slidably connected in the ejector groove, and the retaining plate is inclined on one side of the ejector groove; a retaining groove is formed on the inner wall of the grinding disc at the corresponding position of the retaining plate.

3. The gear grinding apparatus according to claim 2, characterized in that: A rubber sleeve is fixedly connected to the surface of the connecting rod at the top groove position; an elastic band is fixedly connected to the groove opening; the side of the elastic band away from the card plate is fixedly connected to the inner wall of the rubber sleeve.

4. The gear grinding apparatus according to claim 1, characterized in that: The bottom surface of the support arm is fixedly connected to a support plate; both ends of the support plate are fixedly connected to insert plates; the bottom surfaces of the two connecting seats are provided with connecting grooves at the corresponding positions of the insert plates.

5. The gear grinding apparatus according to claim 4, characterized in that: A rubber pad is fixed to the inner wall of the connecting groove; the thickness of the bottom of the rubber pad is less than the thickness of its top.

6. The gear grinding apparatus according to claim 1, characterized in that: The top surface of the workbench is slidably connected to two movable seats on both sides of the turntable; both movable seats are driven by two linear motors, and the line connecting the two movable seats is perpendicular to the support frame; a rotating rod is rotatably connected to the top surface of the movable seat; a groove is opened on the side of the rotating rod near the turntable, and the groove opening and bottom are both hexagonal; a limiting post is fixedly connected to the side of the double-headed stud away from the support arm, and the limiting post is a regular hexagonal prism.

7. A gear grinding apparatus according to claim 6, characterized in that: An electric push rod is rotatably connected to the top surface of the movable seat; a support plate is fixedly connected to the top of the electric push rod; a pair of symmetrically arranged vacuum suction cups are provided on the bottom surface of the support plate, and the vacuum suction cups are fixedly connected to the support plate by bolts; conveyor belts are installed on both sides of the movable seat on the top surface of the workbench.

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