A kind of automobile steel rim production and grinding device

Abstract

The invention discloses a device for producing and polishing automobile steel rims, and relates to the technical field of producing and polishing automobile steel rims, comprising: a processing table, a spiral transmission device is fixedly installed on the surface of the processing table, a movable frame is threadedly installed on the output end of the spiral transmission device, a fixed rod is fixedly installed on the surface of the processing table, the fixed rod penetrates the movable frame, a linear motor is fixedly installed on the bottom of the movable frame, an electric telescopic rod is fixedly installed on the output end of the linear motor, a grinder is fixedly installed on the output end of the electric telescopic rod, a pneumatic cleaner is fixedly installed on the surface of the processing table, an air jet is fixedly installed on the surface of the pneumatic cleaner, a sealing frame is arranged inside the air jet, and a clamping device is arranged on the top of the processing table, and the automobile steel rim is pressed by moving downward through an arc-shaped pressure plate to prevent the automobile steel rim from being slightly shaken up and down by vibration during the polishing process, thereby affecting the polishing effect.

Description

Technical Field

[0001] The invention relates to the technical field of steel rim production and grinding, in particular to a steel rim production and grinding device for automobiles. Background Art

[0002] During the production process of automobile steel rims, after the automobile steel rim prototype is produced, some burrs or scratches may appear on the side of the automobile steel rim, and at this time it needs to be polished.

[0003] The patent with patent announcement number CN213380859U relates to a production and grinding device for automobile steel rims, and relates to the field of grinding devices. In view of the problems that existing automobile steel rims are inconvenient to operate on a small scale, inefficient and have low processing precision, the following scheme is proposed: a production and grinding device for automobile steel rims, comprising a support frame, a frame is fixedly installed on the upper inner wall of the support frame, electric slide rails are fixedly installed on the left and right sides of the frame, a first slider is arranged in the electric slide rail, a first hydraulic rod is fixedly connected to the lower side of each first slider, and a grinder is fixedly connected to the lower end of the first hydraulic rod, a support platform is arranged on the lower inner wall of the support frame, motors are arranged on the left and right sides of the support platform, and a cylinder is fixedly connected to the output end of each motor, a cross-shaped groove is opened in each cylinder, a ring is fixedly connected to the upper end face of each cylinder, and a T-shaped slide bar is fixedly connected to the outer side face of the ring, and the device has the characteristics of convenient clamping and adjustment, efficient grinding, and improved precision.

[0004] In the above patent, the clamping and adjustment can be convenient, the grinding can be carried out efficiently, and the precision is improved. However, during the grinding process, the vibration may cause the automobile steel rim to shake up and down, which may cause deviations in the grinding process and affect the grinding effect. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a production and grinding device for automobile steel rims, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a device for producing and grinding automobile steel rims, comprising: a processing table, a spiral transmission device is fixedly installed on the surface of the processing table, a movable frame is threadedly installed on the output end of the spiral transmission device, a fixed rod is fixedly installed on the surface of the processing table, the fixed rod passes through the movable frame, a linear motor is fixedly installed on the bottom of the movable frame, an electric telescopic rod is fixedly installed on the output end of the linear motor, a grinder is fixedly installed on the output end of the electric telescopic rod, a pneumatic cleaner is fixedly installed on the surface of the processing table, an air jet is fixedly installed on the surface of the pneumatic cleaner, a sealing frame is arranged inside the air jet; a clamping device, the clamping device is arranged on the top of the processing table, the The clamping device includes a telescopic device, a splint, a sliding rod, an arc plate, a trapezoidal block, a connecting frame and an arc pressure plate. The position of the grinder is controlled by a spiral transmission device, a linear motor and an electric telescopic rod. The telescopic device is fixedly mounted on the surface of the processing table, the splint is fixedly mounted on the output end of the telescopic device, the sliding rod slides through the surface of the splint, the arc plate is fixedly mounted on the side of the sliding rod away from the splint, the trapezoidal block is slidably mounted on the surface of the splint, the connecting frame is fixedly mounted on the surface of the trapezoidal block, and the arc pressure plate is fixedly mounted on the bottom of the connecting frame. The movement of the sliding rod toward the direction close to the telescopic device will push the trapezoidal block to move downward, the downward movement of the trapezoidal block will drive the connecting frame to move downward, and the downward movement of the connecting frame will drive the arc pressure plate to move downward.

[0007] According to the above technical solution, a No. 1 spring is arranged between the slide rod and the splint, and the slide rod is reset by the No. 1 spring. A No. 2 spring is arranged between the trapezoidal block and the splint, and the trapezoidal block is reset by the No. 2 spring. The surface of the arc plate is provided with a rubber coating.

[0008] According to the above technical solution, a correction device for correcting the automobile steel rim and an anti-blocking device for preventing the air jet from being blocked are arranged on the processing table. The correction device includes a connecting rod, a short rod, a correction slide and a trapezoidal plate. The connecting rod is driven to move in a direction close to the automobile steel rim by the movement of the clamping plate in a direction close to the automobile steel rim. The movement of the connecting rod in a direction close to the automobile steel rim drives the short rod to move in a direction close to the automobile steel rim. The connecting rod is fixedly installed on the bottom of the clamping plate, the short rod is fixedly installed on the bottom of the connecting rod, the correction slide is slidably installed on the surface of the processing table, and the trapezoidal plate is fixedly installed on the surface of the correction slide.

[0009] According to the above technical solution, an L-shaped plate is fixedly installed on the surface of the correction slide, a baffle is slidably penetrated on the surface of the air jet, an air outlet is opened on the surface of the baffle, and a trapezoidal push block is fixedly installed on the surface of the baffle. The movement of the correction slide in the direction away from the short rod will drive the L-shaped plate to move in the direction away from the pneumatic cleaner, the movement of the L-shaped plate in the direction away from the pneumatic cleaner will push the trapezoidal push block to move upward, and the upward movement of the trapezoidal push block will drive the baffle to move upward.

[0010] According to the above technical solution, a No. 3 spring is arranged between the correction slide and the processing table, and the No. 3 spring is used to drive the correction slide to reset. A No. 4 spring is arranged between the air jet and the baffle, and the No. 4 spring is used to drive the baffle to reset.

[0011] According to the above technical solution, the anti-blocking device includes a square block, a trapezoidal push plate and a filter plate. The square block is driven upward by the upward movement of the baffle plate. The upward movement of the square block will push the trapezoidal push plate to move away from the square block. The movement of the trapezoidal push plate away from the square block will drive the filter plate to move away from the square block. The square block is fixedly mounted on the surface of the baffle plate, the filter plate is slidably mounted on the inner wall of the jet port, and the trapezoidal push plate is fixedly mounted on a side of the filter plate close to the square block.

[0012] According to the above technical solution, a connecting seat is fixedly installed on the surface of the jet port, a scraper is slidably installed on the surface of the filter plate, a sliding seat is fixedly installed on the surface of the scraper, a rotating plate is rotatably installed on the inner wall of the connecting seat, and one end of the rotating plate away from the connecting seat is rotatably installed on the inner wall of the sliding seat. The rotating plate will push the sliding seat to slide downward, and the downward sliding of the sliding seat will drive the scraper to move downward, and the dust attached to the filter plate will be pushed down by the downward movement of the scraper.

[0013] According to the above technical solution, the square block contacts the surface of the trapezoidal push plate, a No. 5 spring is arranged between the filter plate and the air jet port, and the filter plate is reset by the No. 5 spring, and a No. 6 spring is arranged between the filter plate and the scraper, and the scraper is reset by the No. 6 spring.

[0014] The present invention provides a production and grinding device for automobile steel rims. It has the following beneficial effects: (1) This invention controls the vertical position of the movable frame through a spiral transmission device, controls the lateral position of the electric telescopic rod through a linear motor, and then drives the grinder downward by moving the output end of the electric telescopic rod downward. The position of the grinder is controlled by the spiral transmission device, the linear motor and the electric telescopic rod, so that the grinder can grind any position of the automobile rim without rotating the automobile rim for adjustment, which is more convenient. At the same time, the rubber coating on the arc plate applies resistance to the automobile rim to prevent the automobile rim from rotating during the clamping and grinding process. The arc pressure plate is moved downward to press the automobile rim to prevent the automobile rim from vibrating slightly up and down during the grinding process, thereby affecting the grinding effect.

[0015] (2) This invention corrects the automobile steel rim by moving the correction slide away from the short rod to prevent slight errors in the placement position that affect the clamping effect of the clamp. At the same time, the upward movement of the trapezoidal push block will drive the baffle plate to move upward, and the upward movement of the baffle plate will drive the air outlet to move upward and overlap with the sealing frame, so that the pneumatic cleaner can use air pressure to blow away dust and impurities on the surface of the processing table. The dust adheres to the automobile steel rim and affects the subsequent processing of the automobile steel rim.

[0016] (3) In the present invention, the movement of the trapezoidal push plate in the direction away from the square block will drive the filter plate to move in the direction away from the square block. The movement of the filter plate in the direction away from the square block will push the dust blocked by the filter plate out of the air jet port, thereby preventing the dust from clogging the filter plate and affecting the air blowing effect. At the same time, the downward sliding of the sliding seat will drive the scraper plate to move downward. The downward movement of the scraper plate will push the dust attached to the filter plate down, thereby preventing the dust from clogging the filter plate. The filter plate will then cooperate with the dust to push the dust out of the air jet port, thereby preventing the dust from clogging and affecting the air blowing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention; Figure 3 It is a schematic diagram of the structure of the clamping device of the present invention; Figure 4 It is a schematic diagram of the structure of the sliding rod and the trapezoidal block of the present invention; Figure 5 It is a schematic diagram of the structure of the correction slide plate and the L-shaped plate of the present invention; Figure 6 It is a schematic diagram of the cross-sectional structure of the air jet of the present invention; Figure 7 It is a schematic diagram of the filter plate and scraper structure of the present invention.

[0018] In the figure: 1, processing table; 2, spiral transmission device; 3, fixed rod; 4, mobile frame; 5, linear motor; 6, electric telescopic rod; 7, grinder; 8, pneumatic cleaner; 81, air jet; 9, telescopic device; 10, clamping plate; 11, sliding rod; 12, arc plate; 13, trapezoidal block; 14, connecting frame; 15, arc pressure plate; 161, connecting rod; 162, short rod; 163, correction slide; 164, trapezoidal plate; 165, L-shaped plate; 166, baffle; 167, trapezoidal push block; 171, square block; 172, trapezoidal push plate; 173, filter plate; 174, connecting seat; 175, scraper; 176, sliding seat; 177, rotating plate. DETAILED DESCRIPTION

[0019] 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 described embodiments 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.

[0020] See also Figure 1-Figure 4 One embodiment of the present invention is: a production and grinding device for automobile steel rims, comprising: a processing table 1, a spiral transmission device 2 is fixedly installed on the surface of the processing table 1, a moving frame 4 is threadedly installed on the output end of the spiral transmission device 2, a fixed rod 3 is fixedly installed on the surface of the processing table 1, the fixed rod 3 penetrates the moving frame 4, a linear motor 5 is fixedly installed on the bottom of the moving frame 4, an electric telescopic rod 6 is fixedly installed on the output end of the linear motor 5, a grinder 7 is fixedly installed on the output end of the electric telescopic rod 6, a pneumatic cleaner 8 is fixedly installed on the surface of the processing table 1, an air jet 81 is fixedly installed on the surface of the pneumatic cleaner 8, and a sealing frame is arranged inside the air jet 81; a clamping device, the clamping device is arranged on the top of the processing table 1, and the clamping device includes a telescopic device 9, a clamping plate 10, and a sliding rod 11 , arc plate 12, trapezoidal block 13, connecting frame 14 and arc pressure plate 15, so that the grinder 7 can grind any position of the automobile steel rim, there is no need to rotate the automobile steel rim for adjustment, which is more convenient. The telescopic device 9 is fixedly installed on the surface of the processing table 1, the splint 10 is fixedly installed at the output end of the telescopic device 9, the slide bar 11 slides through the surface of the splint 10, the arc plate 12 is fixedly installed on the side of the slide bar 11 away from the splint 10, the trapezoidal block 13 is slidably installed on the surface of the splint 10, the connecting frame 14 is fixedly installed on the surface of the trapezoidal block 13, and the arc pressure plate 15 is fixedly installed on the bottom of the connecting frame 14. The automobile steel rim is pressed by moving downward through the arc pressure plate 15 to prevent the automobile steel rim from vibrating slightly up and down during the grinding process, thereby affecting the grinding effect.

[0021] A No. 1 spring is arranged between the slide bar 11 and the splint 10, and the slide bar 11 is reset by the No. 1 spring. A No. 2 spring is arranged between the trapezoidal block 13 and the splint 10, and the trapezoidal block 13 is reset by the No. 2 spring. The surface of the arc plate 12 is provided with a rubber coating.

[0022] When the present embodiment is working, the output end of the telescopic device 9 moves toward the direction close to the automobile steel rim, driving the clamping plate 10 to move toward the direction close to the automobile steel rim to clamp the automobile steel rim, and then the vertical position of the movable frame 4 is controlled by the spiral transmission device 2, and the lateral position of the electric telescopic rod 6 is controlled by the linear motor 5, and then the output end of the electric telescopic rod 6 moves downward to drive the grinder 7 downward, and the position of the grinder 7 is controlled by the spiral transmission device 2, the linear motor 5 and the electric telescopic rod 6, so that the grinder 7 can grind any position of the automobile steel rim, without rotating the automobile steel rim for adjustment, which is more convenient, and at the same time, the movement of the clamping plate 10 toward the direction close to the automobile steel rim will drive the sliding rod 11 and the arc plate 12 toward the automobile steel rim. When the car rim moves in the direction of the arc plate 12, the arc plate 12 will contact the car rim, and the rubber coating on the arc plate 12 will apply resistance to the car rim to prevent the car rim from rotating during the clamping and grinding process. At the same time, when the arc plate 12 contacts the car rim, the reverse force will push the slide bar 11 to move in the direction close to the telescopic device 9. The movement of the slide bar 11 in the direction close to the telescopic device 9 will push the trapezoidal block 13 to move downward. The downward movement of the trapezoidal block 13 will drive the connecting frame 14 to move downward. The downward movement of the connecting frame 14 will drive the arc pressure plate 15 to move downward. The car rim is pressed by the downward movement of the arc pressure plate 15 to prevent the car rim from shaking slightly up and down due to vibration during the grinding process, which will affect the grinding effect.

[0023] See also Figure 1-Figure 7 On the basis of the above-mentioned embodiment, in another embodiment of the present invention, a correction device for correcting the automobile steel rim and an anti-blocking device for preventing the air jet 81 from being blocked are provided on the processing table 1, the correction device comprises a connecting rod 161, a short rod 162, a correction slide 163 and a trapezoidal plate 164, the connecting rod 161 is fixedly mounted on the bottom of the splint 10, the short rod 162 is fixedly mounted on the bottom of the connecting rod 161, the correction slide 163 is slidably mounted on the surface of the processing table 1, and the trapezoidal plate 164 is fixedly mounted on the surface of the correction slide 163, and the automobile steel rim is corrected by moving the correction slide 163 away from the short rod 162 to prevent slight errors in the placement position from affecting the clamping effect of the splint 10.

[0024] An L-shaped plate 165 is fixedly installed on the surface of the correction slide 163, a baffle 166 is slidably penetrated on the surface of the air jet 81, an air outlet is opened on the surface of the baffle 166, and a trapezoidal push block 167 is fixedly installed on the surface of the baffle 166. The baffle 166 moves upward to drive the air outlet to move upward and overlap with the sealing frame, so that the pneumatic cleaner 8 can use air pressure to blow away dust and impurities on the surface of the processing table 1. The dust adheres to the automobile steel rim and affects the subsequent processing of the automobile steel rim.

[0025] A No. 3 spring is arranged between the correction slide 163 and the processing table 1, and the No. 3 spring drives the correction slide 163 to reset. A No. 4 spring is arranged between the air jet 81 and the baffle 166, and the No. 4 spring drives the baffle 166 to reset.

[0026] The anti-clogging device includes a square block 171, a trapezoidal push plate 172 and a filter plate 173. The square block 171 is fixedly mounted on the surface of the baffle 166, the filter plate 173 is slidably mounted on the inner wall of the air jet port 81, and the trapezoidal push plate 172 is fixedly mounted on a side of the filter plate 173 close to the square block 171. The filter plate 173 moves away from the square block 171, and the dust blocked by the filter plate 173 is pushed out of the air jet port 81 to prevent the dust from clogging the filter plate 173 and affecting the blowing effect.

[0027] A connecting seat 174 is fixedly installed on the surface of the air jet 81, a scraper 175 is slidably installed on the surface of the filter plate 173, a sliding seat 176 is fixedly installed on the surface of the scraper 175, a rotating plate 177 is rotatably installed on the inner wall of the connecting seat 174, and the end of the rotating plate 177 away from the connecting seat 174 is rotatably installed on the inner wall of the sliding seat 176. The scraper 175 moves downward to push down the dust attached to the filter plate 173 to prevent the dust from clogging the filter plate 173, and then cooperates with the filter plate 173 to push the dust out of the air jet 81 to prevent the dust from clogging and affecting the blowing effect.

[0028] The square block 171 is in contact with the surface of the trapezoidal push plate 172. A No. 5 spring is arranged between the filter plate 173 and the air jet port 81, and the filter plate 173 is reset by the No. 5 spring. A No. 6 spring is arranged between the filter plate 173 and the scraper 175, and the scraper 175 is reset by the No. 6 spring.

[0029] When the present embodiment is working, the clamping plate 10 moves toward the direction close to the automobile steel ring, driving the connecting rod 161 to move toward the direction close to the automobile steel ring, the connecting rod 161 moves toward the direction close to the automobile steel ring, driving the short rod 162 to move toward the direction close to the automobile steel ring, the short rod 162 moves toward the direction close to the automobile steel ring, and the trapezoidal plate 164 moves away from the short rod 162, and the trapezoidal plate 164 moves away from the short rod 162, and the correction slide 163 moves away from the short rod 162, and the automobile steel ring is corrected by moving the correction slide 163 away from the short rod 162 to prevent the placement position from being misaligned. There are slight errors in the positioning, which affect the clamping effect of the clamping plate 10. At the same time, the movement of the correction slide 163 away from the short rod 162 will drive the L-shaped plate 165 to move away from the pneumatic cleaner 8. The movement of the L-shaped plate 165 away from the pneumatic cleaner 8 will push the trapezoidal push block 167 to move upward. The upward movement of the trapezoidal push block 167 will drive the baffle 166 to move upward. The upward movement of the baffle 166 drives the air outlet to move upward and overlap with the sealing frame, so that the pneumatic cleaner 8 can use air pressure to blow away the dust and impurities on the surface of the processing table 1. The dust adheres to the automobile steel rim and affects the subsequent processing of the automobile steel rim.

[0030] The baffle plate 166 moves upward to drive the square block 171 to move upward. The upward movement of the square block 171 will push the trapezoidal push plate 172 to move away from the square block 171. The trapezoidal push plate 172 moves away from the square block 171, which will drive the filter plate 173 to move away from the square block 171. The filter plate 173 moves away from the square block 171 to push the dust blocked by the filter plate 173 out of the air jet 81, so as to prevent the dust from clogging the filter plate 173 and affecting the blowing effect. At the same time, the movement of the filter plate 173 away from the square block 171 will push the scraper 175 away from the square block 171. The scraper 175 moves in the direction away from the square block 171, and the sliding seat 176 moves in the direction away from the square block 171. The sliding seat 176 moves in the direction away from the square block 171 and is squeezed by the rotating plate 177. The rotating plate 177 pushes the sliding seat 176 to slide downward. The sliding seat 176 slides downward and drives the scraper 175 to move downward. The scraper 175 moves downward to push the dust attached to the filter plate 173 down to prevent the dust from clogging the filter plate 173. The filter plate 173 cooperates with the dust to push the dust out of the air jet port 81 to prevent the dust from clogging and affecting the blowing effect.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A production and grinding device for automobile steel rims, characterized in that: include: A processing table (1), wherein a spiral transmission device (2) is fixedly mounted on the surface of the processing table (1), a movable frame (4) is threadedly mounted on the output end of the spiral transmission device (2), a fixed rod (3) is fixedly mounted on the surface of the processing table (1), the fixed rod (3) passes through the movable frame (4), a linear motor (5) is fixedly mounted on the bottom of the movable frame (4), an electric telescopic rod (6) is fixedly mounted on the output end of the linear motor (5), a grinder (7) is fixedly mounted on the output end of the electric telescopic rod (6), a pneumatic cleaner (8) is fixedly mounted on the surface of the processing table (1), an air jet (81) is fixedly mounted on the surface of the pneumatic cleaner (8), and a sealing frame is arranged inside the air jet (81); A clamping device, wherein the clamping device is arranged on the top of the processing table (1), and the clamping device comprises a telescopic device (9), a clamping plate (10), a sliding rod (11), an arc plate (12), a trapezoidal block (13), a connecting frame (14) and an arc pressure plate (15), wherein the telescopic device (9) is fixedly mounted on the surface of the processing table (1), the clamping plate (10) is fixedly mounted on the output end of the telescopic device (9), the sliding rod (11) slides through the surface of the clamping plate (10), the arc plate (12) is fixedly mounted on a side of the sliding rod (11) away from the clamping plate (10), the trapezoidal block (13) is slidably mounted on the surface of the clamping plate (10), the connecting frame (14) is fixedly mounted on the surface of the trapezoidal block (13), and the arc pressure plate (15) is fixedly mounted on the bottom of the connecting frame (14); Wherein, the processing table (1) is provided with a correction device for correcting the automobile steel rim and an anti-clogging device for preventing the air jet port (81) from being blocked.

2. The automobile steel rim production and grinding device according to claim 1, characterized in that: A first spring is arranged between the slide bar (11) and the clamping plate (10), a second spring is arranged between the trapezoidal block (13) and the clamping plate (10), and a rubber coating is arranged on the surface of the arc plate (12).

3. The automobile steel rim production and grinding device according to claim 2, characterized in that: The correction device comprises a connecting rod (161), a short rod (162), a correction slide plate (163) and a trapezoidal plate (164); the connecting rod (161) is fixedly mounted on the bottom of the clamping plate (10); the short rod (162) is fixedly mounted on the bottom of the connecting rod (161); the correction slide plate (163) is slidably mounted on the surface of the processing table (1); and the trapezoidal plate (164) is fixedly mounted on the surface of the correction slide plate (163).

4. The automobile steel rim production and grinding device according to claim 3, characterized in that: An L-shaped plate (165) is fixedly mounted on the surface of the correction slide plate (163), a baffle (166) is slidably penetrated through the surface of the air jet port (81), an air outlet is formed on the surface of the baffle plate (166), and a trapezoidal push block (167) is fixedly mounted on the surface of the baffle plate (166).

5. The automobile steel rim production and grinding device according to claim 4, characterized in that: A No. 3 spring is provided between the correction slide plate (163) and the processing table (1), and a No. 4 spring is provided between the air jet port (81) and the baffle plate (166).

6. The automobile steel rim production and grinding device according to claim 5, characterized in that: The anti-clogging device comprises a square block (171), a trapezoidal push plate (172) and a filter plate (173); the square block (171) is fixedly mounted on the surface of the baffle (166); the filter plate (173) is slidably mounted on the inner wall of the air jet port (81); and the trapezoidal push plate (172) is fixedly mounted on a side of the filter plate (173) close to the square block (171).

7. The automobile steel rim production and grinding device according to claim 6, characterized in that: A connecting seat (174) is fixedly mounted on the surface of the air jet port (81), a scraper (175) is slidably mounted on the surface of the filter plate (173), a sliding seat (176) is fixedly mounted on the surface of the scraper (175), a rotating plate (177) is rotatably mounted on the inner wall of the connecting seat (174), and one end of the rotating plate (177) away from the connecting seat (174) is rotatably mounted on the inner wall of the sliding seat (176).

8. The automobile steel rim production and grinding device according to claim 7, characterized in that: The square block (171) is in surface contact with the trapezoidal push plate (172), a No. 5 spring is provided between the filter plate (173) and the air jet port (81), and a No. 6 spring is provided between the filter plate (173) and the scraper plate (175).

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