An automobile part polishing and finishing apparatus and method

Abstract

This invention discloses a grinding and polishing equipment and method for automotive parts, relating to the field of automotive parts processing. It includes a frame, a rotating fixture, a polisher, and a pusher. The frame is equipped with a pressing mechanism, which includes a transmission frame slidably mounted on the frame. One end of the transmission frame has a rotatable transmission screw, and the other end has a rotatable transmission wheel. A downward-moving sleeve is threaded onto the bottom of the transmission screw. This invention solves the problem of radial wobbling and wobble of the gear shaft during high-speed rotation polishing by stably pressing the top of the gear shaft with a positioning seat. This ensures uniform contact pressure between the gear shaft and the polishing wheel, significantly improving polishing quality and finished product yield, and reducing abnormal wear between parts and the polishing wheel. Furthermore, by adjusting the screw and the transmission screw in a synchronized manner, the height of the positioning seat can be quickly and stably adjusted according to gear shafts of different lengths and specifications, adapting to the processing of various types and sizes of gear shafts. The adjustment process is simple and efficient, greatly improving the equipment's versatility and changeover speed.

Description

Technical Field

[0001] This invention relates to the field of automotive parts processing, specifically to an automotive parts grinding and polishing equipment and method. Background Technology

[0002] In the field of automotive parts processing, motor gear shafts are core components of automotive transmission systems. The surface finish and dimensional accuracy of their shafts directly affect transmission efficiency and service life. Grinding and polishing are key processes in the precision machining of gear shafts. Automated gear shaft polishing equipment can replace manual labor to complete double-sided polishing of shafts, with high processing efficiency and good surface consistency. It is widely used in the mass production of automotive motor gear shafts.

[0003] The motor-driven gear shaft double-sided polishing machine is a type of automotive parts grinding and polishing equipment. It mainly consists of a machine frame, a drive motor, a rotary clamping mechanism, double-sided polishing components, a parts flipping mechanism, a feed slide rail, and a control unit. The rotary clamping mechanism includes a clamping seat, a clamping cylinder, and long-stroke jaws, used to fix the end of the gear shaft. The drive motor can drive the clamping mechanism to rotate synchronously with the gear shaft. The double-sided polishing components are symmetrically arranged on both sides of the clamping mechanism. The polishing wheel moves closer to or away from the workpiece through the feed slide rail. During the rotation of the gear shaft, both sides of the shaft are simultaneously ground and polished. It can continuously complete automated polishing operations for gear shafts of various specifications and is the mainstream gear shaft polishing processing equipment in the industry.

[0004] However, the lengths of the grinding sections at both ends of the gear shaft to be processed are not uniform, resulting in differences in length. The grippers of the equipment fixture are generally designed with a fixed length. When the grippers hold a short grinding section of the gear shaft, the distance between the gripper position and the top of the gear shaft is relatively far. During the high-speed rotation and polishing process driven by the fixture, the top of the gear shaft will exhibit obvious radial wobbling and wobble. This wobbling will cause uneven contact pressure between the gear shaft and the polishing wheel, which can easily reduce the polishing quality and the yield of finished products. At the same time, the wobbling will also aggravate abnormal wear of the polishing wheel, grippers, and even the gear shaft, affecting the stability of continuous processing of the equipment. Summary of the Invention

[0005] The purpose of this invention is to provide an equipment and method for grinding and polishing automotive parts to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a grinding and polishing equipment for automotive parts, comprising a frame, a rotating clamp, a polisher, and a pusher. The frame is provided with a pressing mechanism, which includes a transmission frame slidably mounted on the frame. One end of the transmission frame is rotatably provided with a transmission screw, and the other end is rotatably provided with a transmission wheel. A downward sleeve is threadedly installed at the bottom of the transmission screw. A positioning seat for limiting the top of the gear shaft is rotatably mounted at the bottom of the downward sleeve through a bearing. A pressure block that cooperates with the transmission wheel is installed on the side wall of the polisher. The frame is equipped with a reset device that cooperates with the transmission frame. The outer wall of the lowering sleeve is equipped with a diagonal bracing mechanism that supports itself, including a transmission seat that is threadedly connected to the adjusting screw in the reset device and a support cylinder that is connected to the lowering sleeve. The outer wall of the transmission seat is equipped with a support rod that is connected to the support cylinder. The middle part of the adjusting screw is equipped with a drive gear that is rotated in the transmission frame, and the drive gear is meshed with a driven gear installed on the top of the transmission screw. The frame is also equipped with a lubrication mechanism corresponding to the bearing.

[0007] Preferably, the resetter includes an adjusting screw rotatably mounted on the end of the transmission frame and a slide mounted slidably on the frame and rotatably connected to the adjusting screw, as well as a spring mounted on the frame and connected to the slide. The end of the adjusting screw is externally connected to a driver, and multiple slides are provided on the frame.

[0008] Preferably, the threads at both ends of the adjusting screw are opposite, and each end of the adjusting screw is threadedly connected to a transmission seat. Support rods are installed on the outer walls of both sides of the transmission seat, and support cylinders are slidably connected to the ends of the support rods. Electromagnets for fixing the position of the support rods are installed on the outer walls of the support cylinders.

[0009] Preferably, the lubrication mechanism includes an oil cylinder mounted on the frame, with a piston slidably installed at one end of the oil cylinder and two oil pipes installed on the outer wall of the other end. One oil pipe is connected to the bearing, and the other oil pipe is connected to an external oil storage mechanism. The ends of the oil pipes connected to the oil cylinder are equipped with one-way valves. The outer wall of the one-way valve used to deliver lubricating grease to the bearing is equipped with an overflow valve connected to the external oil storage mechanism to prevent overpressure of the bearing and to prevent excessive grease from entering the bearing.

[0010] Preferably, the lubrication mechanism further includes a linkage frame that is slidably mounted on the outer end of the oil cylinder and connected to the piston, and a push wheel is mounted on the outer end of the linkage frame, and a second spring connected to the outer side wall of the oil cylinder is mounted on the side wall of the linkage frame. An electric push rod is mounted on the frame, and a transmission plate that cooperates with the push wheel is provided at the end of the electric push rod.

[0011] Preferably, both the bottom surface of the pressure block and the bottom surface of the transmission plate are designed with an inclined surface.

[0012] Preferably, the end of the electric actuator and the outer wall of the transmission seat are respectively equipped with a lateral limiting seat and a longitudinal limiting seat that are slidably connected to the transmission plate, so that the transmission plate can follow the electric actuator to perform lifting and lowering motion and follow the transmission seat to perform lateral reciprocating motion.

[0013] Preferably, the electric actuator operates periodically, and the extension length of the electric actuator is the same each time it operates.

[0014] A method for grinding and polishing automotive parts includes the following steps: S1: Pre-adjust the positioning according to the length of the end of the gear shaft to be processed. First, turn off the electromagnet, then rotate the adjusting screw to drive the transmission seat to move, and drive the transmission screw to rotate through the drive gear and driven gear. Adjust the lower sleeve and the positioning seat to the appropriate height. After completion, turn on the electromagnet to lock the support rod. S2: Start the propeller to push the polisher closer to the workpiece, so that the pressure block presses down on the transmission wheel, which will cause the transmission frame to drive the positioning seat to move down and press the top of the gear shaft. Then, the rotating fixture drives the gear shaft to rotate, and at the same time the polisher grinds and polishes the surface of the gear shaft. S3: After polishing is completed, the pusher drives the polisher to move backward, the pressure block separates from the transmission wheel, and the spring of the reset device pulls the pressing mechanism to lift and reset as a whole through the adjusting screw and the slide, and the positioning seat disengages from the top of the gear shaft; S4: The bearing is lubricated in a fixed quantity. The transmission plate is driven by the electric actuator to squeeze the pusher wheel, which pushes the piston to inject the grease in the oil cylinder into the bearing through the oil pipe. The overflow valve releases pressure to prevent overload. When resetting, the piston draws out new grease to replenish the oil cylinder, thus completing the circulation lubrication.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention solves the problem of radial wobbling and wobble of the gear shaft during high-speed polishing by stably pressing the top of the gear shaft with the positioning seat. This ensures uniform contact pressure between the gear shaft and the polishing wheel, significantly improving polishing quality and finished product qualification rate, and reducing abnormal wear between parts and the polishing wheel. Furthermore, by adjusting the screw and the transmission screw in a synchronized manner, the height of the positioning seat can be quickly and stably adjusted according to gear shafts of different lengths and specifications. This adapts to the processing of various types and sizes of gear shafts. The adjustment process is simple and efficient, greatly improving the versatility of the equipment and the speed of changeover.

[0016] 2. This invention forms a stable and rigid support for the lowering sleeve through a double-support diagonal brace mechanism, ensuring that the positioning seat does not tilt or deviate when pressed down, and that the support force is uniform. At the same time, the drive gear and the driven gear mesh and transmit power, and the support rod and the support cylinder slide and cooperate. The movement paths of each moving part are independent and do not interfere with each other, resulting in smooth operation without jamming and higher stability in long-term use.

[0017] 3. This invention uses a polisher-moving linkage pressing mechanism to automatically drive the positioning seat to press down using the inclined surface of the pressure block. It does not require an additional motor or control system. The purely mechanical linkage provides rapid response and synchronized action. Furthermore, the invention is equipped with a lubrication mechanism that can automatically supply a metered amount of oil to the bearing for lubrication through the cooperation of an oil cylinder, a one-way valve, and an overflow valve. The overflow valve prevents overpressure and excessive oil supply, avoiding overheating and leakage of the bearing and extending the service life of the positioning seat rotating assembly. Moreover, the lubrication action is linked and matched with the height adjustment position, making the oil supply more reasonable. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial structural diagram of the present invention; Figure 3 This is a schematic diagram of the structure in which a positioning seat on one side fixes the gear shaft in this invention; Figure 4 This is a schematic diagram of the structure in which the positioning seat on the other side fixes the gear shaft in this invention; Figure 5 This is a schematic diagram of the transmission frame after partial cross-section in this invention; Figure 6 This is a schematic diagram of the structure of the hydraulic cylinder after partial cross-section in this invention; Figure 7 For the present invention Figure 6 A magnified structural diagram of point A in the middle.

[0019] In the diagram: 1. Frame; 2. Rotary clamp; 3. Polisher; 4. Pusher; 5. Pressing mechanism; 51. Transmission frame; 52. Transmission screw; 53. Lowering sleeve; 531. Bearing; 54. Transmission wheel; 55. Pressure block; 6. Positioning seat; 7. Resetter; 71. Adjusting screw; 72. Slide; 73. Spring 1; 8. Diagonal brace mechanism; 81. Transmission seat; 82. Support rod; 83. Support cylinder; 84. Electromagnet; 85. Drive gear; 86. Driven gear; 9. Lubrication mechanism; 91. Oil cylinder; 92. Piston; 93. Oil pipe; 931. Check valve; 932. Overflow valve; 94. Linkage frame; 95. Push wheel; 96. Electric push rod; 97. Transmission plate; 98. Spring 2; 10. Lateral limit seat; 11. Longitudinal limit seat. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1 - Figure 7 The present invention provides the following technical solution: a grinding and polishing equipment for automotive parts, including a frame 1, a rotating clamp 2, a polisher 3 and a pusher 4. The frame 1 is provided with a pressing mechanism 5, which includes a transmission frame 51 slidably mounted on the frame 1. A transmission screw 52 is rotatably mounted on one end of the transmission frame 51, and a transmission wheel 54 is rotatably mounted on the other end. A lowering sleeve 53 is threadedly mounted on the bottom of the transmission screw 52. A positioning seat 6 for limiting the top of the gear shaft is rotatably mounted on the bottom of the lowering sleeve 53 through a bearing 531. A pressure block 55 that cooperates with the transmission wheel 54 is fixedly mounted on the side wall of the polisher 3. The frame 1 is equipped with a resetter 7 that cooperates with the transmission frame 51. The outer wall of the lower sleeve 53 is equipped with a diagonal bracing mechanism 8 that supports itself. The diagonal bracing mechanism 8 includes a transmission seat 81 that is threadedly connected to the adjusting screw 71 in the resetter 7 and a support cylinder 83 that is connected to the lower sleeve 53. The outer wall of the transmission seat 81 is equipped with a support rod 82 that is connected to the support cylinder 83. The middle part of the adjusting screw 71 is equipped with a drive gear 85 that is rotated in the transmission frame 51. The drive gear 85 is meshed with a driven gear 86 that is installed on the top of the transmission screw 52. The frame 1 is also equipped with a lubrication mechanism 9 corresponding to the bearing 531.

[0022] As one embodiment of the present invention, the resetter 7 includes an adjusting screw 71 rotatably mounted on the end of the transmission frame 51 and a slide block 72 slidably mounted on the frame 1 and rotatably connected to the adjusting screw 71, as well as a spring 73 mounted on the frame 1 and connected to the slide block 72. The end of the adjusting screw 71 is externally connected to a driver, and multiple slide blocks 72 are provided on the frame 1. After polishing is completed and the pressure block 55 separates from the transmission wheel 54, the spring 73 will release its elastic force, pushing the adjusting screw 71 upward through the slide 72, thereby driving the pressing mechanism 5 to lift and reset as a whole, so that the positioning seat 6 leaves the top of the gear shaft and the equipment returns to the waiting state.

[0023] In one embodiment of the present invention, the threads at both ends of the adjusting screw 71 are opposite, and both ends of the adjusting screw 71 are threadedly connected to a transmission seat 81. Support rods 82 are installed on both outer walls of the transmission seat 81, and support cylinders 83 are slidably connected to the ends of the support rods 82. An electromagnet 84 for fixing the position of the support rods 82 is installed on the outer wall of the support cylinder 83. During the sliding adjustment of the transmission seat 81 and the lowering sleeve 53, the relative positions of the support rod 82 and the support cylinder 83 are synchronously matched and adjusted to ensure that the inclined support mechanism 8 can provide uniform and stable lateral support force to the lowering sleeve 53 at different working heights, avoiding tilting and shaking when pressing down. After the height of the positioning seat 6 is set, the electromagnet 84 is turned on to lock the position of the support rod 82 to ensure the rigidity of the support.

[0024] In one embodiment of the present invention, the lubrication mechanism 9 includes an oil cylinder 91 mounted on the frame 1, and a piston 92 is slidably mounted in one end of the oil cylinder 91, and two oil pipes 93 are mounted on the outer wall of the other end. One oil pipe 93 is connected to the bearing 531, and the other oil pipe 93 is connected to the external oil storage mechanism. A one-way valve 931 is installed at the end of the oil pipe 93 connected to the oil cylinder 91, and an overflow valve 932 connected to the external oil storage mechanism is installed on the outer wall of the one-way valve 931 used to deliver lubricating grease to the bearing 531. The overflow valve 932 monitors the oil supply pressure in real time. When the pressure exceeds the standard, it automatically opens to release pressure and discharge excess grease back to the external oil storage mechanism, thus preventing the bearing 531 from overheating and leaking due to excessive oil injection, and achieving stable and quantitative lubrication.

[0025] As one embodiment of the present invention, the lubrication mechanism 9 further includes a linkage frame 94 slidably mounted on the outer end of the oil cylinder 91 and connected to the piston 92, and a push wheel 95 is mounted on the outer end of the linkage frame 94, and a spring 98 connected to the outer side wall of the oil cylinder 91 is mounted on the side wall of the linkage frame 94. An electric push rod 96 is mounted on the frame 1, and a transmission plate 97 cooperating with the push wheel 95 is provided at the end of the electric push rod 96. The electric push rod 96 is operated periodically, and the extension length of the electric push rod 96 is the same each time it is operated. When the electric actuator 96 is started, it pushes the transmission plate 97 downward through the transverse limit seat 10, causing the inclined surface at the bottom of the transmission plate 97 to squeeze the push wheel 95, forcing the push wheel 95 to drive the linkage frame 94 to move towards the spring 98, so that the spring 98 is under pressure. At the same time, the linkage frame 94 pushes the piston 92 to slide into the oil cylinder 91. When the piston 92 moves, the lubricating grease in the oil cylinder 91 is forced to the bearing 531 through the corresponding oil pipe 93 and the one-way valve 931, so as to force lubricate and cool the high-speed rotating bearing 531.

[0026] As one embodiment of the present invention, the bottom surface of the pressure block 55 and the bottom surface of the transmission plate 97 are both designed with slopes; so that when the pressure block 55 and the transmission plate 97 slide, the positions of the transmission wheel 54 and the push wheel 95 can be adjusted smoothly.

[0027] In one embodiment of the present invention, a transverse limiting seat 10 and a longitudinal limiting seat 11, which are slidably connected to a transmission plate 97, are fixedly installed on the end of the electric push rod 96 and the outer wall of the transmission seat 81, respectively. The outer wall of the transmission plate 97 is provided with a transverse groove and a vertical groove that cooperate with the transverse limiting seat 10 and the longitudinal limiting seat 11. The transverse limiting seat 10 and the longitudinal limiting seat 11 are each provided with a slider that cooperates with the transverse groove and the vertical groove. The transverse limiting seat 10 is slidably connected to the top of the transmission plate 97 through the slider and the transverse groove. The longitudinal position of the transmission plate 97 is limited by the transverse limiting seat 10, the slider and the transverse groove, and can only move horizontally on the transverse limiting seat 10. The longitudinal limiting seat 11 is slidably connected to the side wall of the transmission plate 97 through the slider and the vertical groove. The transverse position of the transmission plate 97 is limited by the longitudinal limiting seat 11, the slider and the vertical groove, and can only move vertically up and down on the longitudinal limiting seat 11. This is used to make the transmission plate 97 follow the electric push rod 96 to move up and down and follow the transmission seat 81 to move laterally back and forth. When the transmission seat 81 slides, the longitudinal limit seat 11 pushes or pulls the transmission plate 97 to complete the pre-adjustment of the oil injection position; this ensures that even if the friction loss between the bearing 531 and the positioning seat 6 increases after the subsequent positioning seat 6 moves down, the oil supply to the bearing 531 can be increased by adjusting the position of the transmission plate 97, thus avoiding insufficient lubrication.

[0028] The method provided in this embodiment is described below, and specifically includes the following steps: S1: Pre-adjust the positioning according to the length of the end of the gear shaft to be processed. First, turn off the electromagnet 84, then rotate the adjusting screw 71 to drive the transmission seat 81 to move, and drive the transmission screw 52 to rotate through the drive gear 85 and the driven gear 86. Adjust the lower sleeve 53 and the positioning seat 6 to the appropriate height. After completion, turn on the electromagnet 84 to lock the support rod 82. S2: Start the thruster 4 to push the polisher 3 closer to the workpiece, so that the pressure block 55 presses down on the transmission wheel 54, which will cause the transmission frame 51 to drive the positioning seat 6 to move down and press the top of the gear shaft. Then, the rotating fixture 2 drives the gear shaft to rotate, and at the same time the polisher 3 grinds and polishes the surface of the gear shaft. S3: After polishing is completed, the pusher 4 drives the polisher 3 to move backward, the pressure block 55 separates from the transmission wheel 54, the spring 73 of the resetter 7 pulls the pressing mechanism 5 to lift and reset as a whole through the adjusting screw 71 and the slide 72, and the positioning seat 6 disengages from the top of the gear shaft. S4: Lubricate the bearing 531 in a quantitative manner. Drive the transmission plate 97 through the electric push rod 96 to squeeze the push roller 95, push the piston 92 to inject the grease in the oil cylinder 91 into the bearing 531 through the oil pipe 93. The overflow valve 932 relieves pressure to prevent overload. When resetting, the piston 92 draws out new grease to replenish the oil cylinder 91, completing the circulation lubrication.

[0029] Working principle: Before the grinding and polishing equipment for automotive parts starts working, the position of the positioning seat 6 is adjusted according to the length of the gear shaft end of the batch to be processed. First, the electromagnet 84 is turned off, releasing the electromagnet 84 from fixing the support rod 82. Then, the adjusting screw 71 is rotated. Because the threads at both ends of the adjusting screw 71 are opposite, the rotation will drive the transmission seats 81 at both ends to move towards or away from each other, thereby driving the support rods 82 on both sides to move synchronously. While the adjusting screw 71 is rotating, the transmission screw 52 will be driven to rotate synchronously through the meshing transmission of the central drive gear 85 and the driven gear 86. At this time, the lower sleeve 53 is constrained by the inclined support mechanism 8 on both sides and cannot rotate on its own. Therefore, the lower sleeve 53 rises or falls under the drive of the transmission screw 52, ​​realizing the stable adjustment of the height of the positioning seat 6. During the sliding adjustment of the transmission seat 81 and the lowering sleeve 53, the relative positions of the support rod 82 and the support cylinder 83 are synchronously matched and adjusted to ensure that the inclined support mechanism 8 can provide uniform and stable lateral support force to the lowering sleeve 53 at different working heights, avoiding tilting and shaking when pressing down; at the same time, when the transmission seat 81 slides, it pushes or pulls the transmission plate 97 through the longitudinal limit seat 11 to complete the pre-adjustment of the oil injection position; to ensure that after the positioning seat 6 moves down, even if the friction loss between the bearing 531 and the positioning seat 6 increases, the oil supply to the bearing 531 can be increased by adjusting the position of the transmission plate 97 to avoid insufficient lubrication. After the height of the positioning seat 6 is set, the electromagnet 84 is turned on again to lock the position of the support rod 82 to ensure the rigidity of the support; When the equipment enters the polishing process, the pusher 4 pushes the polisher 3 closer to the gear shaft, and the pressure block 55 on the side wall of the polisher 3 moves forward accordingly. The inclined surface of the bottom of the pressure block 55 presses against the transmission wheel 54, forcing the transmission wheel 54 to drive the transmission frame 51 to move downward. When the transmission frame 51 moves downward, it drives the adjusting screw 71, the transmission screw 52, ​​the lowering sleeve 53 and the positioning seat 6 to move downward synchronously as a whole, so that the positioning seat 6 is smoothly pressed against the top end face of the gear shaft, forming a top pressing support, which suppresses the radial sway and wobble of the gear shaft when it rotates at high speed from the root, and improves the rotational stability of the gear shaft. When the polisher 3 moves into position, the equipment starts running. The rotating clamp 2 drives the gear shaft to rotate at high speed, and the polisher 3 continuously polishes the surface of the gear shaft. During the downward movement of the adjusting screw 71, each set of slides 72 is pulled down synchronously. The slides 72 compress the spring 73, so that the spring 73 is in a compressed and stored energy state. After polishing is completed, the pusher 4 drives the polisher 3 to retract and reset, and the pressure block 55 separates from the transmission wheel 54; the spring 73 releases its elastic force and pushes the adjusting screw 71 upward through the slide 72, thereby driving the pressing mechanism 5 to lift and reset as a whole, the positioning seat 6 leaves the top of the gear shaft, the equipment returns to the waiting state, and waits for the next gear shaft to enter the processing station to complete one processing cycle; After prolonged use, the electric actuator 96 operates periodically according to actual usage. When the electric actuator 96 is started, it pushes the transmission plate 97 downward through the transverse limit seat 10, causing the inclined surface at the bottom of the transmission plate 97 to squeeze the push wheel 95, forcing the push wheel 95 to drive the linkage frame 94 to move towards the spring 98, so that the spring 98 is under pressure. At the same time, the linkage frame 94 pushes the piston 92 to slide into the oil cylinder 91. When the piston 92 moves, the lubricating grease in the oil cylinder 91 is sent to the bearing 531 through the corresponding oil pipe 93 and the one-way valve 931, forcibly lubricating and cooling the high-speed rotating bearing 531. During this process, the overflow valve 932 monitors the oil supply pressure in real time. When the pressure exceeds the standard, it automatically opens to release the pressure and discharge the excess grease back to the external oil storage mechanism, avoiding the bearing 531 from overheating and leakage due to excessive oil injection, and achieving stable quantitative lubrication. When the electric actuator 96 pulls the transmission plate 97 to reset, the restriction on the end of the push wheel 95 will be released. At this time, the second spring 98 will push the linkage frame 94, causing the linkage frame 94 to drive the piston 92 and the push wheel 95 to reset. During the reset process of the piston 92, it will draw new lubricating grease from the external oil storage mechanism through another oil pipe 93 and the corresponding one-way valve 931 and enter the oil cylinder 91 to complete the oil replenishment cycle.

[0030] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A grinding and polishing equipment for automotive parts, comprising a frame (1), a rotating clamp (2), a polisher (3), and a pusher (4), characterized in that: The frame (1) is provided with a pressing mechanism (5), which includes a transmission frame (51) slidably mounted on the frame (1). One end of the transmission frame (51) is provided with a transmission screw (52) and the other end is provided with a transmission wheel (54). The bottom of the transmission screw (52) is threaded with a lowering sleeve (53). The bottom of the lowering sleeve (53) is rotatably mounted with a positioning seat (6) for limiting the top of the gear shaft through a bearing (531). The side wall of the polisher (3) is provided with a pressure block (55) that cooperates with the transmission wheel (54). The frame (1) is provided with a resetter (7) that cooperates with the transmission frame (51). The outer wall of the lower sleeve (53) is provided with a bracing mechanism (8) that supports itself, including a transmission seat (81) that is threadedly connected to the adjusting screw (71) in the resetter (7) and a support cylinder (83) that is connected to the lower sleeve (53). The outer wall of the transmission seat (81) is provided with a support rod (82) that is connected to the support cylinder (83). The middle part of the adjusting screw (71) is provided with a drive gear (85) that is rotated in the transmission frame (51). The drive gear (85) is meshed with a driven gear (86) that is installed on the top of the transmission screw (52). The frame (1) is also provided with a lubrication mechanism (9) corresponding to the bearing (531).

2. The automotive parts grinding and polishing equipment according to claim 1, characterized in that: The resetter (7) includes an adjusting screw (71) rotatably mounted on the end of the transmission frame (51) and a slide (72) slidably mounted on the frame (1) and rotatably connected to the adjusting screw (71), and a spring (73) mounted on the frame (1) and connected to the slide (72). The end of the adjusting screw (71) is externally connected to a driver, and multiple slides (72) are provided on the frame (1).

3. The automotive parts grinding and polishing equipment according to claim 2, characterized in that: The threads at both ends of the adjusting screw (71) are opposite, and both ends of the adjusting screw (71) are threadedly connected to a transmission seat (81). Support rods (82) are installed on both outer walls of the transmission seat (81). Support cylinders (83) are slidably connected to the ends of the support rods (82), and electromagnets (84) for fixing the position of the support rods (82) are installed on the outer wall of the support cylinders (83).

4. The automotive parts grinding and polishing equipment according to claim 3, characterized in that: The lubrication mechanism (9) includes an oil cylinder (91) mounted on the frame (1), and a piston (92) is slidably mounted in one end of the oil cylinder (91), and two oil pipes (93) are mounted on the outer wall of the other end. One of the oil pipes (93) is connected to the bearing (531), and the other oil pipe (93) is connected to the external oil storage mechanism. The ends of the oil pipes (93) connected to the oil cylinder (91) are provided with one-way valves (931). The one-way valve (931) used to deliver lubricating grease to the bearing (531) is provided with an overflow valve (932) connected to the external oil storage mechanism on its outer wall to prevent the bearing (531) from being over-pressurized and to prevent excessive grease from entering the bearing (531).

5. The automotive parts grinding and polishing equipment according to claim 4, characterized in that: The lubrication mechanism (9) further includes a linkage frame (94) that is slidably mounted on the outer end of the oil cylinder (91) and connected to the piston (92). A push wheel (95) is installed on the outer end of the linkage frame (94), and a spring (98) connected to the outer side wall of the oil cylinder (91) is installed on the side wall of the linkage frame (94). An electric push rod (96) is installed on the frame (1), and a transmission plate (97) that cooperates with the push wheel (95) is provided at the end of the electric push rod (96).

6. The automotive parts grinding and polishing equipment according to claim 5, characterized in that: The bottom surface of the pressure block (55) and the bottom surface of the transmission plate (97) are both designed with an inclined surface.

7. The automotive parts grinding and polishing equipment according to claim 6, characterized in that: The electric push rod (96) end and the outer wall of the transmission seat (81) are respectively equipped with a transverse limiting seat (10) and a longitudinal limiting seat (11) that are slidably connected to the transmission plate (97), so that the transmission plate (97) follows the electric push rod (96) to perform lifting and lowering movements and follows the transmission seat (81) to perform transverse reciprocating movements.

8. The automotive parts grinding and polishing equipment according to claim 7, characterized in that: The electric actuator (96) is operated periodically, and the electric actuator (96) extends the same length each time it operates.

9. A method for grinding and polishing automotive parts, applicable to the automotive parts grinding and polishing equipment described in any one of claims 1-8, characterized in that: The method includes the following steps: S1: Pre-adjust positioning according to the length of the end of the gear shaft to be processed. First, turn off the electromagnet (84), then rotate the adjusting screw (71) to drive the transmission seat (81) to move, and drive the transmission screw (52) to rotate through the drive gear (85) and driven gear (86). Adjust the lower sleeve (53) and positioning seat (6) to the appropriate height. After completion, turn on the electromagnet (84) to lock the support rod (82). S2: Start the thruster (4) to push the polisher (3) close to the workpiece, so that the pressure block (55) presses down the transmission wheel (54), which will cause the transmission frame (51) to drive the positioning seat (6) to move down and press the top of the gear shaft. Then, the rotating clamp (2) drives the gear shaft to rotate, and at the same time the polisher (3) grinds and polishes the surface of the gear shaft. S3: After polishing is completed, the pusher (4) drives the polisher (3) to move backward, the pressure block (55) separates from the transmission wheel (54), the spring (73) of the resetter (7) pulls the pressing mechanism (5) to lift and reset as a whole through the adjusting screw (71) and the slide (72), and the positioning seat (6) disengages from the top of the gear shaft; S4: Lubricate the bearing (531) in a quantitative manner. Drive the transmission plate (97) through the electric push rod (96) to squeeze the pusher (95), push the piston (92) to inject the grease in the oil cylinder (91) into the bearing (531) through the oil pipe (93). The overflow valve (932) releases pressure to prevent overload. When resetting, the piston (92) draws out new grease to replenish the oil cylinder (91) to complete the circulation lubrication.

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