Polishing device for automobile part machining and using method of polishing device

Abstract

The invention discloses a polishing device for automobile part machining, and relates to the technical field of automobile part machining equipment, the polishing device comprises a workbench mechanism and a mechanical control mechanism, and the mechanical control mechanism comprises a base, a controller and a mechanical arm. According to the grinding device, when the grinding head needs to be replaced, a connecting rod of the replaced grinding head is fixedly connected with a power shaft in an inserted mode, after a plurality of inserting holes of a rotating ring are aligned with a plurality of inserting rods, a micro motor drives a driving gear to rotate, the inserting rods are inserted into the inserting holes, the rotating ring is connected, and replacement and installation of the grinding head are completed; a proper polishing head can be conveniently and rapidly replaced when different parts or different parts are polished, the overall polishing efficiency of the device is improved, pressure and distance information between the polishing head and the surfaces of the parts is detected in real time through a pressure sensor and a distance sensor, and a control system of a controller controls the polishing head according to the information. And the posture of the mechanical arm and the position of the grinding head are accurately adjusted, and self-adaptive high-precision grinding is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts processing equipment, in particular to a grinding device for automobile parts processing and a use method thereof. Background Art

[0002] Grinding is a step in the manufacturing process and a type of surface modification technology. It generally refers to a processing method that uses rough objects to change the physical properties of the material surface through friction. The main purpose is to obtain a specific surface roughness. Grinding technology is also widely used in the repair and processing of automotive parts.

[0003] For example, the Chinese patent CN111331457A, "A grinding device for automobile parts processing", includes a box body arranged on the top of a supporting base, a cover plate is provided on the top of the box body, a cover body is provided on the upper surface of the cover plate, a reduction motor 1 is symmetrically provided at the right end of the cover plate along its width direction, the output ends of the reduction motor 1 are connected to a screw rod 1, and the end of the screw rod 1 away from the reduction motor 1 passes through the right side surface of the cover body.

[0004] At present, automobile parts are polished using polishing devices. When automobile parts of different shapes, different materials or in different polishing stages need to be polished, the polishing head needs to be replaced frequently. The existing polishing heads usually adopt a more complicated bolt connection method, and the polishing head cannot be replaced quickly, resulting in a long time spent on replacing the polishing head, thereby affecting the overall polishing efficiency. At the same time, traditional polishing devices rely on manual operation to control a simple mechanical structure for polishing operations. It is difficult to accurately adjust the posture of the robot arm and the position of the polishing head according to the complex curved surface shape of the parts and different polishing requirements. Manual operation is not only labor-intensive, but also easily leads to unstable polishing quality due to factors such as operator fatigue and differences in skill levels.

[0005] Therefore we propose a grinding device for automobile parts processing, so as to solve the above-mentioned problems. Summary of the invention

[0006] The object of the present invention is to provide a grinding device for automobile parts processing to solve the problems raised by the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a grinding device for automobile parts processing, comprising a workbench mechanism and a mechanical control mechanism, the mechanical control mechanism comprising a base, a controller and a mechanical arm, one end of the mechanical arm is rotatably mounted with an assembly rod, and one end of the assembly rod is fixedly connected to a grinding mechanism, the grinding mechanism comprises a fixed shell, a mounting frame, an assembly shell, a grinding head, a fixed rod, a micro motor, a driving gear and a power shaft, the other end of the fixed shell is fixedly mounted to both ends of the mounting frame, a driving motor is fixedly mounted inside the fixed shell, and the output end of the driving motor is fixedly connected to one end of the power shaft, one end of the mounting frame is fixedly connected to a distance sensor, and the other end of the mounting frame is fixedly connected to a pressure sensor, the bottom of the assembly shell The end is fixedly connected to the bottom end of the mounting frame, the inner rotatable connection of the assembly shell is provided with a driven gear disk, and the outer wall annular array of the driven gear disk is meshed with three connecting gears, the output end of the micromotor is fixedly connected to one end of the driving gear, the outer wall of the driving gear is meshed with the outer wall of the driven gear disk, three slide grooves are provided through the inner annular array of the assembly shell, and a plug rod is slidably connected to the inner side of the slide groove, the outer wall of one end of the connecting gear is meshed with the outer side of the plug rod, one end of the fixed rod is welded to one end of the grinding head, and a connecting rod is welded to the other end of the fixed rod, the outer side of the fixed rod is rotatably connected with a rotating ring, one end of the connecting rod is plugged into one end of the power shaft, three sockets are provided in a ring array on the outer edge of the rotating ring, and one end of the plug rod is plugged into the inner side of the socket.

[0008] Preferably, the bottom end of the mechanical control mechanism is fixedly mounted to the top end of the workbench mechanism, and the two ends of the connecting gear are rotatably connected to the inner side of the assembly shell.

[0009] Preferably, the bottom end of the micro motor is fixedly mounted to the top end of the assembly shell, and one end of the fixed shell is fixedly mounted to one end of the assembly rod.

[0010] Preferably, the interior of the base is fixedly mounted to one end of the controller, a mounting seat is rotatably mounted on the bottom end of the mechanical arm, and the bottom end of the mounting seat is fixedly mounted to the top of the base.

[0011] Preferably, the workbench mechanism includes a processing table and a material receiving frame, and a placement plate is fixedly connected to the top of the processing table.

[0012] Preferably, a plurality of dust suction holes are evenly opened on the top of the processing table, a dust suction assembly is fixedly connected to the interior of the processing table, and the material receiving frame is installed on the top of the dust suction assembly.

[0013] Preferably, one end of the processing table is fixedly mounted to the bottom end of the base, and supporting feet are symmetrically arranged at both ends of the bottom of the processing table.

[0014] A method for using a grinding device for automobile parts processing comprises the following steps: S1. The operator places the automobile parts to be polished on the placement plate of the workbench mechanism, and quickly and accurately positions the parts through the positioning device. The control system of the controller starts the mechanical control mechanism according to the positioning information of the parts and the preset polishing program, so that it drives the polishing head of the polishing mechanism to move to the starting polishing position of the parts; S2, start the driving motor of the grinding mechanism, the driving motor drives the power shaft, the fixed rod and the grinding head to rotate, and starts the grinding work according to the speed set by the control system. At the same time, the robot arm moves the grinding head in the three-dimensional space according to the predetermined trajectory; S3. During the grinding process, the dust suction component is turned on, and the dust suction component sucks the dust generated during grinding into the receiving frame through the dust suction hole; S4. During the grinding process, the pressure sensor and the distance sensor monitor the pressure and distance information between the grinding head and the surface of the component in real time, and feed back this information to the controller. The control system of the controller adjusts the posture of the robot arm and the position of the grinding head in time according to the feedback information; S5. After the predetermined grinding program is completed, the control system stops driving the motor, the robot arm moves the grinding head to the initial position, and the operator removes the polished parts from the workbench; S6. When the grinding head needs to be replaced, the micro motor drives the active gear to rotate, thereby driving the driven gear plate and the connecting gear inside the assembly shell to rotate, so that the multiple insertion rods slide out of the insertion holes along the slide groove, and the grinding head is quickly taken out; S7. Then, connect the connecting rod of the replaced grinding head to the power shaft, drive the driving gear to rotate through the micro motor, insert multiple rods into the sockets, connect the rotating ring, and complete the installation of the grinding head.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, when the grinding head needs to be replaced, the micro motor drives the driving gear to rotate, thereby driving the driven gear plate and the connecting gear inside the assembly shell to rotate, and the outer wall of one end of the connecting gear meshes with the outer wall of the plug rod, so that the multiple plug rods slide out of the plug hole along the slide groove, and the operator can quickly take out the grinding head, and then plug and fix the connecting rod of the replaced grinding head with the power shaft, and after aligning the multiple plug holes of the rotating ring with the multiple plug rods, the micro motor drives the driving gear to rotate, so that the multiple plug rods slide inward along the slide groove until the multiple plug rods are inserted into the plug hole, thereby connecting the rotating ring, completing the replacement and installation of the grinding head, so that the grinding head can be quickly replaced, which is convenient for quickly replacing the appropriate grinding head when grinding different parts or different parts, and improving the overall grinding efficiency of the device; 2. In the present invention, during the grinding process, the dust generated during grinding is sucked into the receiving frame through the dust suction hole by the dust suction component, so that the dust generated by grinding can be collected to the maximum extent, and the dust is collected in time to prevent the dust from polluting the working environment and affecting the surface quality of parts. At the same time, the pressure sensor and the distance sensor detect the pressure and distance information between the grinding head and the surface of the part in real time, and feed this information back to the controller. The control system of the controller accurately adjusts the posture of the robot arm and the position of the grinding head according to this information, so that the grinding head can fit the complex curved surface of the part tightly, realize adaptive high-precision grinding, effectively avoid the situation of excessive or insufficient local grinding, and significantly improve the surface flatness and finish of the polished parts. High-quality grinding work can be completed with less manual intervention, meeting the requirements of high-precision assembly of automotive parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a grinding device for automobile parts processing according to the present invention; Figure 2 A rear perspective view of a grinding device for automobile parts processing according to the present invention; Figure 3 It is a front cross-sectional view of a workbench mechanism of a grinding device for automobile parts processing of the present invention; Figure 4 This is a structural stereogram of a grinding mechanism of a grinding device for machining automobile parts according to the present invention; Figure 5 This is a schematic diagram of the internal structure of a grinding mechanism of a grinding device for machining automobile parts according to the present invention; Figure 6 This is a schematic structural diagram of a grinding head of a grinding device for machining automobile parts according to the present invention; Figure 7 This is a schematic diagram of the internal structure of an assembly shell of a grinding device for automobile parts processing according to the present invention; Figure 8 The present invention is a side sectional view of a grinding mechanism of a grinding device for machining automobile parts.

[0017] In the figure: 1. workbench mechanism; 2. mechanical control mechanism; 3. grinding mechanism; 11. processing table; 12. placement plate; 13. dust suction hole; 14. dust suction assembly; 15. material receiving frame; 16. supporting foot; 21. base; 22. controller; 23. mounting seat; 24. mechanical arm; 25. assembly rod; 31. fixed shell; 32. mounting frame; 33. distance sensor; 34. pressure sensor; 35. assembly shell; 36. grinding head; 37. fixed rod; 38. rotating ring; 39. connecting rod; 310. jack; 311. driving motor; 312. micro motor; 313. driving gear; 314. power shaft; 315. slide groove; 316. plug rod; 317. connecting gear; 318. driven gear plate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Example 1: Reference Figure 1 - Figure 8As shown: A grinding device for automobile parts processing, including a workbench mechanism 1 and a mechanical control mechanism 2, the mechanical control mechanism 2 includes a base 21, a controller 22 and a mechanical arm 24, one end of the mechanical arm 24 is rotatably mounted with an assembly rod 25, and one end of the assembly rod 25 is fixedly connected to a grinding mechanism 3, the grinding mechanism 3 includes a fixed shell 31, a mounting frame 32, an assembly shell 35, a grinding head 36, a fixed rod 37, a micro motor 312, a driving gear 313 and a power shaft 314, the other end of the fixed shell 31 is fixedly mounted with both ends of the mounting frame 32, and the fixed A driving motor 311 is fixedly installed inside the housing 31, and the output end of the driving motor 311 is fixedly connected to one end of the power shaft 314, one end of the mounting frame 32 is fixedly connected to a distance sensor 33, and the other end of the mounting frame 32 is fixedly connected to a pressure sensor 34, the bottom end of the assembly shell 35 is fixedly connected to the bottom end of the mounting frame 32, the inside of the assembly shell 35 is rotatably connected to a driven gear disc 318, and the outer wall of the driven gear disc 318 is meshed with three connecting gears 317 in an annular array, and the output end of the micro motor 312 is fixedly connected to one end of the driving gear 313. The outer wall of the driving gear 313 meshes with the outer wall of the driven gear disc 318, and three slide grooves 315 are opened through the inner annular array of the assembly shell 35. The inner side of the slide groove 315 is slidably connected with a plug rod 316. The outer wall of one end of the connecting gear 317 meshes with the outer side of the plug rod 316. One end of the fixed rod 37 is welded to one end of the grinding head 36, and the other end of the fixed rod 37 is welded to a connecting rod 39. The outer side of the fixed rod 37 is rotatably connected to a rotating ring 38. One end of the connecting rod 39 is plugged into one end of the power shaft 314. The outer edge of the rotating ring 38 is opened in an annular array. There are three sockets 310, one end of the plug rod 316 is plugged into the inner side of the socket 310, the bottom end of the mechanical control mechanism 2 is fixedly mounted on the top of the workbench mechanism 1, the two ends of the connecting gear 317 are rotatably connected to the inner side of the assembly shell 35, the bottom end of the micro motor 312 is fixedly mounted on the top of the assembly shell 35, one end of the fixed outer shell 31 is fixedly mounted on one end of the assembly rod 25, the inside of the base 21 is fixedly mounted on one end of the controller 22, and the bottom end of the mechanical arm 24 is rotatably mounted with a mounting seat 23, and the bottom end of the mounting seat 23 is fixedly mounted on the top of the base 21.

[0020] A method for using a grinding device for automobile parts processing comprises the following steps: S1. The operator places the automobile parts to be polished on the placement plate 12 of the workbench mechanism 1, and quickly and accurately positions the parts through the positioning device. The control system of the controller 22 starts the mechanical control mechanism 2 according to the positioning information of the parts and the preset polishing program, so that it drives the polishing head 36 of the polishing mechanism 3 to move to the starting polishing position of the parts; S2, start the drive motor 311 of the grinding mechanism 3, the drive motor 311 drives the power shaft 314, the fixed rod 37 and the grinding head 36 to rotate, and the grinding work starts according to the speed set by the control system. At the same time, the robot arm 24 moves the grinding head 36 in the three-dimensional space according to the predetermined trajectory; S3, during the grinding process, the dust suction component 14 is turned on, and the dust suction component 14 sucks the dust generated during grinding into the material receiving frame 15 through the dust suction hole 13; S4. During the grinding process, the pressure sensor 34 and the distance sensor 33 detect the pressure and distance information between the grinding head 36 and the surface of the component in real time, and feed back the information to the controller 22. The control system of the controller 22 adjusts the posture of the robot arm 24 and the position of the grinding head 36 in time according to the feedback information. S5. After the predetermined grinding process is completed, the control system stops driving the motor 311, the robot arm 24 moves the grinding head 36 to the initial position, and the operator removes the polished parts from the workbench; S6. When the grinding head 36 needs to be replaced, the micro motor 312 drives the driving gear 313 to rotate, thereby driving the driven gear plate 318 and the connecting gear 317 inside the assembly shell 35 to rotate, so that the multiple insertion rods 316 slide out of the insertion hole 310 along the slide groove 315, and the grinding head 36 is quickly taken out; S7, then connect the connecting rod 39 of the replaced grinding head 36 to the power shaft 314, drive the driving gear 313 to rotate through the micro motor 312, insert the multiple plug rods 316 into the socket 310, connect the rotating ring 38, and complete the installation of the grinding head 36.

[0021] The working principle of this embodiment is as follows: when the grinding head 36 needs to be replaced, the micro motor 312 drives the driving gear 313 to rotate, thereby driving the driven gear plate 318 and the connecting gear 317 inside the assembly shell 35 to rotate, and the outer wall of one end of the connecting gear 317 is engaged with the outer wall of the plug rod 316, so that the multiple plug rods 316 slide out of the insertion hole 310 along the slide groove 315, and the operator can quickly take out the grinding head 36, and then plug the connecting rod 39 of the replaced grinding head 36 into the power shaft 314 for fixing. After aligning the multiple insertion holes 310 of the rotating ring 38 with the multiple insertion rods 316, the micro motor 312 drives the driving gear 313 to rotate, so that the multiple insertion rods 316 slide inward along the slide groove 315 until the multiple insertion rods 316 are inserted into the insertion holes 310, thereby connecting the rotating ring 38 and completing the replacement and installation of the grinding head 36, so that the grinding head 36 can be quickly replaced, which is convenient for quickly replacing the appropriate grinding head 36 when grinding different parts or different parts, thereby improving the overall grinding efficiency of the device; During the grinding process, when the grinding head 36 approaches the surface of the component, the pressure sensor 34 and the distance sensor 33 detect the pressure and distance information between the grinding head 36 and the surface of the component in real time, and feed this information back to the controller 22. The control system of the controller 22 accurately adjusts the posture of the robotic arm 24 and the position of the grinding head 36 based on this information, so that the grinding head 36 can fit closely to the complex curved surface of the component, thereby achieving adaptive high-precision grinding.

[0022] Example 2: Reference Figure 1 - Figure 3 As shown: a grinding device for processing automobile parts, the workbench mechanism 1 includes a processing table 11 and a material receiving frame 15, the top of the processing table 11 is fixedly connected with a placement plate 12, the top of the processing table 11 is evenly opened with a plurality of dust suction holes 13, the interior of the processing table 11 is fixedly connected with a dust suction component 14, the material receiving frame 15 is installed on the top of the dust suction component 14, one end of the processing table 11 is fixedly installed with the bottom end of the base 21, and support feet 16 are symmetrically arranged at both ends of the bottom of the processing table 11.

[0023] The working principle of this embodiment is as follows: during the grinding process, the dust suction component 14 is turned on, and the dust suction component 14 sucks the dust generated during grinding into the material receiving frame 15 through the dust suction hole 13, which can collect the dust generated during grinding to the maximum extent, collect the dust in time, and prevent the dust from polluting the working environment and affecting the surface quality of parts.

[0024] In the present invention, when the device is used to grind automobile parts, first, the operator places the automobile parts to be grinded on the placement plate 12 of the workbench mechanism 1, and quickly and accurately positions the parts through the positioning device. The control system of the controller 22 starts the mechanical control mechanism 2 according to the positioning information of the parts and the preset grinding program, so that it drives the grinding head 36 of the grinding mechanism 3 to move to the starting grinding position of the parts, and starts the driving motor 311 of the grinding mechanism 3. The driving motor 311 drives the power shaft 314, the connecting rod 39, the fixed rod 37 and the grinding head 36 to rotate (the rotating ring 38 is rotatably installed on the outside of the fixed rod 37, and the rotating ring 38 is fixed by multiple insertion rods 316, and the rotating ring 38 does not rotate at this time). The device starts grinding according to the rotation speed set by the control system, and at the same time, the mechanical arm 24 moves the grinding head 36 in three-dimensional space according to a predetermined trajectory, thereby grinding the automobile parts; During the grinding process, the dust suction component 14 is turned on, and the dust suction component 14 sucks the dust generated during grinding into the material receiving frame 15 through the dust suction hole 13, which can collect the dust generated by grinding to the maximum extent, collect the dust in time, and prevent the dust from polluting the working environment and affecting the surface quality of the parts; at the same time, during the grinding process, when the grinding head 36 is close to the surface of the part, the pressure sensor 34 and the distance sensor 33 detect the pressure and distance information between the grinding head 36 and the surface of the part in real time, and feed this information back to the controller 22. The control system of the controller 22 accurately adjusts the robot arm according to this information. The posture of the robot 24 and the position of the grinding head 36 enable the grinding head 36 to fit closely to the complex curved surface of the parts, achieve adaptive high-precision grinding, effectively avoid the situation of excessive or insufficient local grinding, and significantly improve the surface flatness and finish of the parts after grinding. High-quality grinding work can be completed with less manual intervention, meeting the requirements of high-precision assembly of automotive parts. When the predetermined grinding program is completed, the control system stops driving the motor 311, the robot arm 24 moves the grinding head 36 to the initial position, and the operator removes the polished parts from the workbench. When the grinding head 36 needs to be replaced, the micro motor 312 drives the driving gear 313 to rotate, thereby driving the driven gear plate 318 and the connecting gear 317 inside the assembly shell 35 to rotate, and the outer wall of one end of the connecting gear 317 is engaged with the outer wall of the plug rod 316, so that the multiple plug rods 316 slide out of the insertion hole 310 along the slide groove 315, and the operator can quickly take out the grinding head 36, and then plug the connecting rod 39 of the replaced grinding head 36 into the power shaft 314 to fix it, and then rotate it. After the multiple sockets 310 of the ring 38 are aligned with the multiple plug rods 316, the micro motor 312 drives the driving gear 313 to rotate, so that the multiple plug rods 316 slide inward along the slide groove 315 until the multiple plug rods 316 are inserted into the sockets 310, thereby connecting the rotating ring 38 and completing the replacement and installation of the grinding head 36, so that the grinding head 36 can be quickly replaced, which is convenient for quickly replacing the appropriate grinding head 36 when grinding different components or different parts, thereby improving the overall grinding efficiency of the device.

[0025] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A grinding device for processing automobile parts, comprising a workbench mechanism (1) and a mechanical control mechanism (2), wherein the mechanical control mechanism (2) comprises a base (21), a controller (22) and a mechanical arm (24), an assembly rod (25) being rotatably mounted on one end of the mechanical arm (24), and a grinding mechanism (3) being fixedly connected to one end of the assembly rod (25), Features: The grinding mechanism (3) comprises a fixed housing (31), a mounting frame (32), an assembly housing (35), a grinding head (36), a fixed rod (37), a micro motor (312), a driving gear (313) and a power shaft (314); the other end of the fixed housing (31) is fixedly mounted to both ends of the mounting frame (32); a driving motor (311) is fixedly mounted inside the fixed housing (31), and the output end of the driving motor (311) is fixedly connected to one end of the power shaft (314); one end of the mounting frame (32) is fixedly connected to a distance sensor (33), and the other end of the mounting frame (32) is fixedly connected to a pressure sensor (34); the bottom end of the assembly housing (35) is fixedly connected to the bottom end of the mounting frame (32); a driven gear disc (318) is rotatably connected inside the assembly housing (35), and the outer wall of the driven gear disc (318) is meshed with three connecting gears ( 317), the output end of the micro motor (312) is fixedly connected to one end of the driving gear (313), the outer wall of the driving gear (313) is meshed with the outer wall of the driven gear (318), the inner ring array of the assembly shell (35) is penetrated by three slide grooves (315), the inner side of the slide groove (315) is slidably connected to the insertion rod (316), the outer wall of one end of the connecting gear (317) is meshed with the outer side of the insertion rod (316), the One end of the fixed rod (37) is welded to one end of the grinding head (36), and the other end of the fixed rod (37) is welded to a connecting rod (39); the outer side of the fixed rod (37) is rotatably connected to a rotating ring (38); one end of the connecting rod (39) is plugged into one end of a power shaft (314); three insertion holes (310) are formed in a circular array on the outer edge of the rotating ring (38); and one end of the insertion rod (316) is plugged into the inner side of the insertion hole (310).

2. The grinding device for automobile parts processing according to claim 1, Features: The bottom end of the mechanical control mechanism (2) is fixedly mounted on the top end of the workbench mechanism (1), and both ends of the connecting gear (317) are rotatably connected to the inner side of the assembly shell (35).

3. The grinding device for automobile parts processing according to claim 1, Features: The bottom end of the micro motor (312) is fixedly mounted to the top end of the assembly shell (35), and one end of the fixed shell (31) is fixedly mounted to one end of the assembly rod (25).

4. The grinding device for automobile parts processing according to claim 1, Features: The interior of the base (21) is fixedly mounted to one end of the controller (22); a mounting seat (23) is rotatably mounted on the bottom end of the mechanical arm (24); and the bottom end of the mounting seat (23) is fixedly mounted to the top of the base (21).

5. The grinding device for automobile parts processing according to claim 1, Features: The workbench mechanism (1) comprises a processing table (11) and a material receiving frame (15), and a placement plate (12) is fixedly connected to the top of the processing table (11).

6. The grinding device for automobile parts processing according to claim 5, Features: A plurality of dust suction holes (13) are evenly arranged on the top of the processing table (11), a dust suction assembly (14) is fixedly connected to the interior of the processing table (11), and the material receiving frame (15) is mounted on the top of the dust suction assembly (14).

7. The grinding device for automobile parts processing according to claim 5, Features: One end of the processing table (11) is fixedly mounted to the bottom end of the base (21), and supporting feet (16) are symmetrically arranged at both ends of the bottom of the processing table (11).

8. A method for using a grinding device for automobile parts processing, It is characterized in that A grinding device for automobile parts processing according to any one of claims 1 to 7 is used, comprising the following steps: S1. An operator places an automobile part to be polished on a placement plate (12) of a workbench mechanism (1), and quickly and accurately positions the part through a positioning device. A control system of a controller (22) starts a mechanical control mechanism (2) based on the positioning information of the part and a preset polishing program, so that the mechanical control mechanism (2) drives a polishing head (36) of a polishing mechanism (3) to move to a starting polishing position of the part. S2, starting the drive motor (311) of the grinding mechanism (3), the drive motor (311) drives the power shaft (314), the fixing rod (37) and the grinding head (36) to rotate, and the grinding work starts according to the rotation speed set by the control system, and at the same time, the mechanical arm (24) moves the grinding head (36) in the three-dimensional space according to a predetermined trajectory; S3. During the grinding process, the dust suction component (14) is turned on, and the dust suction component (14) sucks the dust generated during the grinding into the material receiving frame (15) through the dust suction hole (13); S4. During the grinding process, the pressure sensor (34) and the distance sensor (33) detect the pressure and distance information between the grinding head (36) and the surface of the component in real time, and feed the information back to the controller (22). The control system of the controller (22) timely adjusts the posture of the robot arm (24) and the position of the grinding head (36) according to the feedback information; S5. After the predetermined grinding process is completed, the control system stops driving the motor (311), the robot arm (24) moves the grinding head (36) to the initial position, and the operator removes the polished component from the workbench; S6. When the grinding head (36) needs to be replaced, the micro motor (312) drives the driving gear (313) to rotate, thereby driving the driven gear plate (318) and the connecting gear (317) inside the assembly shell (35) to rotate, so that the multiple insertion rods (316) slide out of the insertion holes (310) along the slide grooves (315), and the grinding head (36) is quickly taken out; S7, the connecting rod (39) of the replaced grinding head (36) is then plugged into the power shaft (314), the driving gear (313) is driven to rotate by the micro motor (312), the plurality of plug rods (316) are inserted into the plug hole (310), the rotating ring (38) is connected, and the installation of the grinding head (36) is completed.

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