An automated spray machine for axle production

Abstract

This utility model discloses an automated axle production spraying machine, including a machine housing. Inside the machine housing, symmetrical sliding strips are slidably connected via guide rods. Support blocks are respectively provided at the upper ends of the sliding strips, and rotating cylinders are rotatably connected inside the support blocks. A connecting pipe is provided on the top wall of the machine housing, and evenly distributed spray nozzles are provided at the lower end of the connecting pipe. The machine also includes a clamping mechanism. The clamping mechanism includes a support plate, a support column, a clamping plate, a U-shaped block, a connecting rod, a U-shaped seat, and a support plate. Support columns are slidably connected to sliding holes on the outer surfaces of opposite ends of the rotating cylinders. Clamping plates are fixedly connected to opposite ends of the support columns, and support plates are fixedly connected to opposite ends of the support columns. The support plates are slidably connected inside the rotating cylinders. This automated axle production spraying machine offers better stability, avoids spraying position deviations, and can adapt to the fixing of axles of different lengths and inner wall diameters without requiring replacement of other equipment.

Description

Technical Field

[0001] This utility model relates to the field of vehicle axle production technology, specifically to an automated spraying machine for vehicle axle production. Background Technology

[0002] The axle is a key component of the automotive chassis system. Like the legs and waist of a car, it is primarily responsible for bearing the weight of the vehicle body, transmitting power, mounting the wheels, and bearing various forces and torques from the wheels. It supports the vehicle's own weight and load. The drive axle transmits torque from the engine and transmission to the wheels, driving the vehicle. All axles bear the driving force, braking force, and lateral force from the wheels, transmitting these to the frame or body through the suspension system. The steering function allows the wheels to deflect at a certain angle, achieving steering. The positioning function, through the structure of the suspension and the axle itself, maintains the correct relative position of the wheels during dynamic driving. The automated axle painting machine is an automated system integrating mechanical, electrical, control, and painting technologies. Its core objective is to replace traditional, inefficient, and inconsistent manual painting, achieving automated, efficient, high-quality, and environmentally friendly axle surface coating.

[0003] The existing authorization announcement number CN219043412U2 discloses a painting mechanism for automobile axle processing, including an axle support mechanism, a conveyor belt, a painting mechanism, a lifting mechanism, and an axle; the axle support mechanism is set on both sides of the conveyor belt, the painting mechanism is suspended above the axle support mechanism, and the lifting mechanism is suspended above the axle support mechanism; the painting mechanism includes a painting machine bracket base plate, a painting machine bracket slider, a painting machine bracket, a painting machine moving motor, a painting machine slide rail, and a painting machine; the painting machine bracket base plate is configured as a slide rail, the painting machine bracket slider is slidably set on the painting machine bracket base plate, the painting machine bracket is fixedly set on the painting machine bracket slider, the painting machine slide rail is set on the painting machine bracket, the painting machine is slidably set on the painting machine slide rail, and the painting machine moving motor is set on one side of the painting machine bracket;

[0004] Existing automated axle production spraying machines of this type have the following problems: low fixing accuracy when spraying axles, resulting in spraying position deviation, and inability to adapt to the fixing of axles of different lengths and inner wall diameters, requiring the replacement of matching equipment for spraying. To address this, we propose an automated axle production spraying machine. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide an automated spraying machine for axle production. When spraying axles, the machine provides better fixation stability, avoids spraying position deviation, and can adapt to the fixation of axles of different lengths and inner wall diameters without the need to replace other equipment. This effectively solves the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automated spraying machine for vehicle axle production, including a machine housing, wherein the interior of the machine housing is slidably connected with left and right symmetrical slide bars via guide rods, the upper ends of the slide bars are respectively provided with support blocks, the interiors of the support blocks are respectively rotatably connected with rotating cylinders, the top wall of the machine housing is provided with a connecting pipe, the lower end of the connecting pipe is provided with uniformly distributed spray nozzles, and also includes a clamping mechanism.

[0007] Clamping mechanism: It includes a support plate, a support column, a clamping plate, a U-shaped block, a connecting rod, a U-shaped seat, and a support plate. The support columns are slidably connected to the sliding holes on the outer surfaces of opposite ends of the rotating drum. The opposing ends of the support columns are fixedly connected to the clamping plates. The opposing ends of the support columns are fixedly connected to the support plates. The support plates are slidably connected to the inside of the rotating drum. The edges of the opposing ends of the support plates are provided with evenly distributed U-shaped seats. The opposing ends of the support plates are provided with U-shaped blocks. The U-shaped blocks and adjacent U-shaped seats located inside the same rotating drum are rotatably connected to the connecting rods through pins. When spraying the axle, the fixing stability is better, avoiding spraying position deviation. It can adapt to the fixing of axles of different lengths and inner wall diameters without the need to replace other equipment.

[0008] Furthermore, a microcontroller is installed on the outside of the chassis, and the input terminal of the microcontroller is electrically connected to an external power supply to provide electrical connections for various electrical appliances.

[0009] Furthermore, the clamping mechanism also includes telescopic rods and springs. The opposing ends of the support plate are respectively fixedly connected to the inner walls of the adjacent rotating cylinders with symmetrical telescopic rods. Springs are respectively sleeved on the outside of the telescopic rods to facilitate rebound.

[0010] Furthermore, it also includes an adjustment assembly, which includes an internal threaded cylinder and a threaded rod. The internal threaded cylinder is fixedly connected to opposite ends of the support plate, and the threaded rod is rotatably connected to the inner wall of the rotating cylinder. The internal threaded cylinder is threadedly connected to the adjacent threaded rod to provide a transmission connection.

[0011] Furthermore, the adjustment assembly also includes a protective cover, a worm gear, a worm, and an adjusting wheel. The protective cover is respectively disposed at opposite ends of the rotating drum. The worm is rotatably connected between the front and rear inner walls of the protective cover. The worm gear is respectively fixedly connected to opposite ends of the threaded rod. The worm gear is threadedly connected to the vertically adjacent worm. The adjusting wheel is respectively fixedly connected to the front end of the worm for easy adjustment.

[0012] Furthermore, a protective shell is provided at the left end of the left support block, and a gear one is fixedly sleeved in the middle of the outer surface of the left rotating drum. A gear two is rotatably connected between the left wall of the protective shell and the left end of the left support block through a transmission column. Gear one and gear two are meshed together. A motor one is provided at the left end of the protective shell. The right end of the output shaft of motor one is fixedly connected to the left end of the transmission column. The input end of motor one is electrically connected to the output end of the microcontroller to provide rotation drive.

[0013] Furthermore, a bidirectional threaded rod is rotatably connected between the lower sides of the left and right inner walls of the chassis. The threaded hole at the middle of the lower end of the slide bar is threadedly connected to the left and right ends of the bidirectional threaded rod, respectively. A second motor is provided at the left end of the chassis. The right end of the output shaft of the second motor is fixedly connected to the left end of the bidirectional threaded rod. The input end of the second motor is electrically connected to the output end of the microcontroller to provide motion drive.

[0014] Furthermore, an angle sensor is provided at the left end of the left protective cover. The middle of the counting shaft of the angle sensor is fixedly connected to the left end of the threaded rod on the left side. The angle sensor is bidirectionally electrically connected to the microcontroller to provide angle monitoring.

[0015] Furthermore, an infrared positioning sensor is provided at the upper end of the support block on the left side. The infrared positioning sensor is bidirectionally electrically connected to the microcontroller to provide position monitoring.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This automated painting machine for axle production has the following advantages:

[0017] The clamping mechanism spacing is adjustable, and by rotating the adjusting wheel, the worm gear and the meshing worm wheel can be driven to move the threaded rod and the internal threaded cylinder, causing the support plate to move left and right inside the rotating cylinder. The support plate pushes the support plate outward through the U-shaped seat, connecting rod and U-shaped block. The support plate will drive the clamping plate outward through the pillar to clamp and fix the inner wall of the axle. When the axle is sprayed, the fixing stability is better, avoiding spraying position deviation. It can adapt to the fixing of axles of different lengths and inner wall diameters without the need to change other equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 3 This is a partially enlarged cross-sectional view of the adjustment component of this utility model;

[0021] Figure 4 This is a partially enlarged cross-sectional view of the clamping mechanism of this utility model.

[0022] In the diagram: 1. Chassis, 2. Guide rod, 3. Sliding bar, 4. Support block, 5. Rotary cylinder, 6. Clamping mechanism, 61. Telescopic rod, 62. Spring, 63. Support plate, 64. Support column, 65. Clamping plate, 66. U-shaped block, 67. Connecting rod, 68. U-shaped seat, 69. Support plate, 7. Adjustment assembly, 71. Internal threaded cylinder, 72. Threaded rod, 73. Protective cover, 74. Worm gear, 75. Worm, 76. Adjusting wheel, 8. Connecting pipe, 9. Nozzle, 10. Gear 1, 11. Gear 2, 12. Motor 1, 13. Bidirectional threaded rod, 14. Motor 2, 15. Microcontroller, 16. Angle sensor, 17. Infrared positioning sensor. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4This embodiment provides a technical solution: an automated painting machine for axle production, including a housing 1. Inside the housing 1, symmetrical sliding strips 3 are slidably connected via guide rods 2. Symmetrical doors are slidably connected to the front of the housing 1, and a door lock is installed between the two doors. The door lock adopts a rotary latch lock structure commonly used in existing technology. A rotary latch lock is a mechanical device that achieves locking through a rotating cam structure, and its core consists of a lock cylinder, a latch, a base, and other components. Side doors are hinged to the left and right sides of the housing 1, respectively. A door lock is installed between the side door and the front edge of the housing 1, also adopting a rotary latch lock structure commonly used in existing technology. A rotary latch lock is a mechanical device that achieves locking through a rotating cam structure, and its core consists of a lock cylinder, a latch, a base, and other components. A sealing ring can be installed at the edge of the housing 1 to ensure that the seal does not leak after the side door is closed. Alternating clearance holes corresponding to the sliding strips 3 are respectively opened on the left and right sides of the bottom wall of the housing 1. A nylon cloth is fixedly fitted on the upper side of the outer surface of the vertically adjacent slide bar 3 at the edge of the clearance hole. The nylon cloth will prevent paint from entering the transmission components inside the lower side of the housing 1 from the clearance hole. The upper end of the slide bar 3 is provided with support blocks 4 respectively. Rotary cylinders 5 are rotatably connected inside the support blocks 4 respectively. The top wall of the housing 1 is provided with a connecting pipe 8. The lower end of the connecting pipe 8 is provided with evenly distributed nozzles 9. It also includes a clamping mechanism 6. When spraying the axle, first push the box door to the left and right sides. Then, the axle will be moved between the two rotating cylinders 5 by means of external hoisting equipment. Then, the external hoisting equipment will be withdrawn. Then, the side door and the box door will be closed. Then, a paint bucket or air pump without air pressure will be required through the connecting pipe 8. Then, the external air pump will be operated by controlling the microcontroller 15. The air pump will draw out the paint inside the paint bucket and deliver it to the inside of the connecting pipe 8. The paint will be sprayed out from the nozzles 9 through the connecting pipe 8, and then the axle will be sprayed.

[0025] Clamping mechanism 6: It includes a support plate 63, a support column 64, a clamping plate 65, a U-shaped block 66, a connecting rod 67, a U-shaped seat 68, and a support plate 69. Support columns 64 are slidably connected to sliding holes on the outer surfaces of opposite ends of the rotating cylinder 5. Clamping plates 65 are fixedly connected to opposite ends of the support columns 64. Support plates 63 are fixedly connected to opposite ends of the support columns 64. Support plates 69 are slidably connected inside the rotating cylinder 5. U-shaped seats 68 are evenly distributed at the edges of opposite ends of the support plates 69. The opposite ends of the support plates 63 are respectively... A U-shaped block 66 is provided. The U-shaped block 66 and the adjacent U-shaped seat 68 located inside the same rotating cylinder 5 are respectively connected by a connecting rod 67 through a pin. When the support plate 69 moves, the U-shaped seat 68 at the edge of the support plate 69 pulls the connecting rod 67 through the pin. The other end of the connecting rod 67 is connected to the U-shaped block 66 on the support plate 63, so it will drive the support plate 63 to move synchronously. The support plate 63 is fixedly connected to the support column 64. The support column 64 extends out of the sliding hole of the rotating cylinder 5, and finally drives the clamping plate 65 to expand outward to clamp and fix the inner wall of the axle.

[0026] A microcontroller 15 is installed on the outside of the chassis 1, and the input terminal of the microcontroller 15 is electrically connected to an external power supply;

[0027] The clamping mechanism 6 also includes a telescopic rod 61 and a spring 62. The opposing ends of the support plate 63 are respectively fixedly connected to the inner walls of the adjacent rotating cylinder 5 with symmetrical telescopic rods 61. Springs 62 are respectively sleeved on the outside of the telescopic rods 61. The opposite ends of the rotating cylinder 5 are respectively installed with sealing plates by bolts. The telescopic rods 61 are installed between the opposing ends of the support plate 63 and the inner walls of the adjacent rotating cylinder 5 by threads. After long-term use, the springs 62 will lose their elasticity and need to be replaced. When replacing the springs 62, first unscrew the bolts, then remove the sealing plates, then unscrew the telescopic rods 61 and replace the springs 62. After replacement, screw the telescopic rods 61 back on, and then reinstall the sealing plates by bolts to ensure the elasticity of the springs 62.

[0028] It also includes an adjustment component 7, which includes an internal threaded cylinder 71 and a threaded rod 72. The internal threaded cylinder 71 is fixedly connected to the opposite ends of the support plate 69, and the threaded rod 72 is rotatably connected to the inner wall of the rotating cylinder 5. The internal threaded cylinder 71 is threadedly connected to the adjacent threaded rod 72, and the threaded rod 72 is threadedly engaged with the internal threaded cylinder 71. The inner wall of the rotating cylinder 5 and the opposite ends of the transversely adjacent internal threaded cylinder 71 are respectively fixedly connected to a bellows. The bellows are respectively sleeved on the outside of the threaded rod 72. The bellows will protect the threaded rod 72 and ensure the sealing and lubrication of the threaded rod 72. When the threaded rod 72 rotates, the internal threaded cylinder 71 will drive the support plate 69 to move left and right inside the rotating cylinder 5.

[0029] The adjustment assembly 7 also includes a protective cover 73, a worm gear 74, a worm 75, and an adjusting wheel 76. The protective cover 73 is respectively disposed at opposite ends of the rotating drum 5. The worm 75 is rotatably connected between the front and rear inner walls of the protective cover 73. The worm gear 74 is respectively fixedly connected to opposite ends of the threaded rod 72. The worm gear 74 is threadedly connected to the vertically adjacent worm 75. The adjusting wheel 76 is respectively fixedly connected to the front end of the worm 75. The worm gear 74 and the worm 75 are respectively located inside the adjacent protective cover 73. The protective cover 73 will protect the worm gear 74 and the worm 75 respectively to prevent paint from entering and affecting the transmission effect. Open the side door, and then rotate the adjusting wheel 76. The adjusting wheel 76 drives the worm 75 to rotate. The worm 75 drives the threaded rod 72 to rotate through the meshing worm gear 74.

[0030] A protective shell is provided at the left end of the support block 4 on the left side. Gear 10 is fixedly sleeved in the middle of the outer surface of the rotating drum 5 on the left side. Gear 21 is rotatably connected between the left wall of the protective shell and the left end of the support block 4 on the left side through a transmission column. Gear 10 and Gear 21 mesh with each other. Gear 10 and Gear 21 are both located inside the protective shell. The protective shell will protect gear 10 and gear 21 to prevent paint from entering and affecting the transmission effect. Motor 12 is provided at the left end of the protective shell. The right end of the output shaft of motor 12 is fixedly connected to the left end of the transmission column. The input end of motor 12 is electrically connected to the output end of microcontroller 15. At the same time, when motor 12 operates, the output shaft of motor 12 drives the transmission column to rotate. The rotation of the transmission column will drive gear 21 to rotate. The rotation of gear 21 will drive the rotating drum 5 to rotate through the meshing gear 10. The rotation of the rotating drum 5 will drive the axle to rotate, thereby spraying the axle in all directions. Motor 12 will rotate 180 degrees in both directions.

[0031] A bidirectional threaded rod 13 is rotatably connected between the lower sides of the left and right inner walls of the chassis 1. The threaded hole at the middle of the lower end of the slide bar 3 is threadedly connected to the left and right ends of the bidirectional threaded rod 13. Corrugated pipes 2 are fixedly connected between the left wall of the chassis 1 and the left end of the left slide bar 3 and the opposite ends of the two slide bars 3, and between the right end of the right slide bar 3 and the right wall of the chassis 1. Corrugated pipes 2 are respectively sleeved on the outside of the bidirectional threaded rod 13. Corrugated pipes 2 will protect the bidirectional threaded rod 13 and ensure the sealing and lubrication of the bidirectional threaded rod 13. A motor 2 14 is provided at the left end of the chassis 1. The right end of the output shaft of motor 2 14 is fixedly connected to the left end of the bidirectional threaded rod 13. The input end of motor 2 14 is electrically connected to the output end of microcontroller 15. Then, by controlling microcontroller 15, motor 2 14 will operate. The output shaft of motor 2 14 will drive the bidirectional threaded rod 13 to rotate. The rotation of the bidirectional threaded rod 13 will drive the slide bars 3 to move in opposite directions, which will then drive the clamping mechanism 6 to move in opposite directions through the support block 4.

[0032] An angle sensor 16 is located at the left end of the left protective cover 73. The middle of the counting shaft of the angle sensor 16 is fixedly connected to the left end of the threaded rod 72 on the left side. The angle sensor 16 is bidirectionally electrically connected to the microcontroller 15. An infrared positioning sensor 17 is located at the upper end of the left support block 4. The infrared positioning sensor 17 is bidirectionally electrically connected to the microcontroller 15. When the infrared positioning sensor 17 detects the distance between itself and the axle in real time, it will emit infrared light after detecting that it has moved to the required position. The infrared positioning sensor 17 will then receive the reflected light after illuminating the surface of the axle. The sensor calculates its relative distance to the axle feature point by measuring the time difference or spot offset of the reflected signal, and transmits this position data to the microcontroller 15 in real time. The movement of the support block 4 is controlled by the microcontroller 15, which calculates the movement distance based on the signal from the infrared positioning sensor 17. The microcontroller 15 pre-stores parameters for the workpiece's proper clamping state, namely, the standard distance between the two sets of support blocks 4 when the clamping plate 65 just clamps the axle, equal to the actual length of the axle, and the standard coordinates of the support blocks relative to the chassis 1. The microcontroller 15 receives these parameters. After the infrared positioning sensor 17 transmits the actual position of the workpiece, it calculates two key data points: whether the current center of the workpiece is aligned with the center of the nozzle 9 inside the chassis, and how much the current distance between the two sets of support blocks 4 differs from the standard distance required to clamp the axle. Based on the calculated distance difference, the microcontroller 15 sends a command to the second motor 14, causing the support block 4 to move a corresponding distance along the guide rod 2 until the clamping plate 65 on the support block 4 is just aligned with both ends of the axle. When the support block 4 moves to a position where the clamping plate 65 is just in contact with the inner wall of both ends of the axle, the infrared positioning sensor 17 will... When the relative distance between the workpiece feature point and the support block 4 reaches the preset value, a signal is sent to the microcontroller 15, the motor 14 stops, the angle sensor 16 will detect the rotation angle of the threaded rod 72 in real time, and the angle sensor 16 will transmit the angle signal to the microcontroller 15. The microcontroller 15 uses a preset algorithm to determine whether the clamping plate is clamping the axle, based on the rotation angle corresponding to the moving distance of the support plate 69 and the clamping force. If the clamping force is insufficient, the microcontroller 15 can prompt to continue rotating the adjusting wheel. If the force is sufficient, the adjustment is stopped, and the clamping and fixing are completed. At this time, the axle is fixed and clamped.

[0033] The working principle of the automated axle painting machine provided by this utility model is as follows: When painting the axle, the door is first pushed to the left and right sides. Then, the axle is moved between two rotating drums 5 using external hoisting equipment. Next, the microcontroller 15 controls the operation of motor 14. The output shaft of motor 14 drives the bidirectional threaded rod 13 to rotate. The rotation of the bidirectional threaded rod 13 drives the slide bar 3 to move towards each other, which in turn drives the clamping mechanism 6 to move towards each other through the support block 4. The infrared positioning sensor 17 will detect the distance between itself and the axle in real time. When the infrared positioning sensor 17 detects the movement... After moving to the desired position, open the side door, then rotate the adjusting wheel 76. The adjusting wheel 76 drives the worm 75 to rotate, and the worm 75 drives the threaded rod 72 to rotate through the meshing worm wheel 74. The threaded rod 72 is threadedly engaged with the internal threaded cylinder 71. When the threaded rod 72 rotates, the internal threaded cylinder 71 will drive the support plate 69 to move left and right inside the rotating cylinder 5. When the support plate 69 moves, the U-shaped seat 68 on the edge of the support plate 69 pulls the connecting rod 67 through the pin. The other end of the connecting rod 67 is connected to the U-shaped block 66 on the support plate 63, thus driving the support plate 63 to move synchronously. The support plate 63 is fixedly connected to the support column 64. 4. Extending from the sliding hole of the rotating drum 5, the clamping plate 65 expands outward to clamp and fix the inner wall of the axle. The angle sensor 16 will detect the rotation angle of the threaded rod 72 in real time and transmit the angle signal to the microcontroller 15. The microcontroller 15 uses a preset algorithm to determine whether the clamping plate has clamped the axle, based on the rotation angle corresponding to the moving distance of the support plate 69 and the clamping force. If the clamping force is insufficient, the microcontroller 15 can prompt to continue rotating the adjusting wheel. If the force is sufficient, the adjustment will stop, and the clamping and fixing will be completed. At this time, the axle is fixed and clamped. Then, the external hoisting equipment will withdraw, and the machine will be shut down. The side door and the box door are connected. Then, a paint bucket without air pressure or an air pump is needed through the connecting pipe 8. Then, through the control of the microcontroller 15, the external air pump operates. The air pump draws the paint from inside the paint bucket and delivers it to the inside of the connecting pipe 8. The paint will be sprayed out from the nozzle 9 through the connecting pipe 8, and then the axle will be painted. At the same time, the motor 12 operates. The output shaft of the motor 12 drives the transmission column to rotate. The rotation of the transmission column will drive the gear 2 11 to rotate. The rotation of the gear 2 11 will drive the rotating drum 5 to rotate through the meshing gear 10. The rotation of the rotating drum 5 will drive the axle to rotate, and then the axle will be painted in all directions.

[0034] It is worth noting that in the above embodiments, the motor 12, motor 2 14, angle sensor 16, and infrared positioning sensor 17 disclosed are as follows: motor 12 can be KH42B900, motor 2 14 can be ASDA-B2-0221-B, angle sensor 16 can be TLE5012B-E9000, and infrared positioning sensor 17 can be HC-SR04. The microcontroller 15 controls the operation of motor 12, motor 2 14, angle sensor 16, and infrared positioning sensor 17 using methods commonly used in the prior art.

[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An automated spraying machine for axle production, comprising a housing (1), wherein symmetrical sliding strips (3) are slidably connected inside the housing (1) via guide rods (2), support blocks (4) are respectively provided at the upper ends of the sliding strips (3), and rotating cylinders (5) are respectively rotatably connected inside the support blocks (4), and connecting pipes (8) are provided on the top wall of the housing (1), with uniformly distributed spray nozzles (9) at the lower end of the connecting pipes (8), characterized in that: It also includes a clamping mechanism (6); Clamping mechanism (6): It includes a support plate (63), a support column (64), a clamping plate (65), a U-shaped block (66), a connecting rod (67), a U-shaped seat (68), and a support plate (69). The support column (64) is slidably connected to the sliding holes on the outer surface of the opposite ends of the rotating cylinder (5). The opposite ends of the support column (64) are fixedly connected to the clamping plate (65). The opposite ends of the support column (64) are fixedly connected to the support plate (63). The support plate (69) is slidably connected to the inside of the rotating cylinder (5). The opposite edges of the support plate (69) are provided with U-shaped seats (68) evenly distributed. The opposite ends of the support plate (63) are provided with U-shaped blocks (66). The U-shaped blocks (66) and the adjacent U-shaped seats (68) located inside the same rotating cylinder (5) are rotatably connected by a connecting rod (67) through a pin.

2. The automated painting machine for axle production according to claim 1, characterized in that: The chassis (1) is equipped with a microcontroller (15) on its exterior, and the input terminal of the microcontroller (15) is electrically connected to an external power source.

3. The automated painting machine for axle production according to claim 1, characterized in that: The clamping mechanism (6) also includes a telescopic rod (61) and a spring (62). The opposing ends of the support plate (63) are respectively fixedly connected to the inner walls of the adjacent rotating cylinder (5) with left and right symmetrical telescopic rods (61). The telescopic rods (61) are respectively fitted with springs (62).

4. The automated painting machine for axle production according to claim 1, characterized in that: It also includes an adjustment component (7), which includes an internal threaded cylinder (71) and a threaded rod (72). The internal threaded cylinder (71) is fixedly connected to the opposite ends of the support plate (69), and the threaded rod (72) is rotatably connected to the inner wall of the rotating cylinder (5). The internal threaded cylinder (71) is threadedly connected to the adjacent threaded rod (72).

5. The automated painting machine for axle production according to claim 4, characterized in that: The adjustment assembly (7) further includes a protective cover (73), a worm gear (74), a worm (75), and an adjustment wheel (76). The protective cover (73) is respectively disposed at opposite ends of the rotating drum (5). The worm (75) is rotatably connected between the front and rear inner walls of the protective cover (73). The worm gear (74) is respectively fixedly connected to opposite ends of the threaded rod (72). The worm gear (74) is threadedly connected to the vertically adjacent worm (75). The adjustment wheel (76) is respectively fixedly connected to the front end of the worm (75).

6. The automated painting machine for axle production according to claim 2, characterized in that: A protective shell is provided on the left end of the support block (4) on the left side. Gear 1 (10) is fixedly sleeved on the middle of the outer surface of the rotating drum (5) on the left side. Gear 2 (11) is rotatably connected between the left wall of the protective shell and the left end of the support block (4) on the left side through a transmission column. Gear 1 (10) and Gear 2 (11) are meshed and connected. Motor 1 (12) is provided on the left end of the protective shell. The right end of the output shaft of Motor 1 (12) is fixedly connected to the left end of the transmission column. The input end of Motor 1 (12) is electrically connected to the output end of the microcontroller (15).

7. The automated painting machine for axle production according to claim 2, characterized in that: The lower side of the inner wall between the left and right sides of the chassis (1) is rotatably connected to a bidirectional threaded rod (13). The threaded hole at the middle of the lower end of the slide bar (3) is threadedly connected to the left and right ends of the bidirectional threaded rod (13). The left end of the chassis (1) is provided with a second motor (14). The right end of the output shaft of the second motor (14) is fixedly connected to the left end of the bidirectional threaded rod (13). The input end of the second motor (14) is electrically connected to the output end of the microcontroller (15).

8. The automated painting machine for axle production according to claim 2, characterized in that: An angle sensor (16) is provided at the left end of the protective cover (73) on the left side. The middle part of the counting shaft of the angle sensor (16) is fixedly connected to the left end of the threaded rod (72) on the left side. The angle sensor (16) is bidirectionally electrically connected to the microcontroller (15).

9. An automated painting machine for axle production according to claim 2, characterized in that: An infrared positioning sensor (17) is provided at the upper end of the support block (4) on the left side. The infrared positioning sensor (17) is bidirectionally electrically connected to the microcontroller (15).

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