Spraying robot for automobile maintenance

Abstract

The invention relates to the technical field of vehicle maintenance, and discloses an automobile maintenance spraying robot which comprises a vehicle maintenance platform, a walking mechanism, a robot body and a spraying gun arranged at one end of the robot body. A mounting column is arranged at one end of the robot body, a spray gun is connected to the mounting column, and an anti-collision assembly is mounted on the outer wall of the mounting column; the anti-collision assembly comprises a first cylinder arranged on the outer wall of the mounting column in a sliding mode, a second cylinder arranged on the outer wall of the first cylinder in a sliding mode and a first damping piece arranged between the first cylinder and the second cylinder. A locking piece used for limiting sliding of the first cylinder is arranged between the first cylinder and the installation column, and one end of the second cylinder is provided with an end portion exceeding the first cylinder. According to the robot, the robot body and the spray gun can be well protected.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of vehicle repair, and in particular to an automobile repair spraying robot. BACKGROUND

[0002] With the continuous growth of the number of automobiles, the demand for vehicle spraying repair is increasing. In the repair of scratches and the like on the surface of a vehicle body, traditional manual spraying is subject to the level, physical strength and energy of a technician, and problems such as uneven coating thickness are prone to occur. Therefore, an intelligent repair spraying robot emerges as the times require, which drives a spraying gun to move through a mechanical arm, so that the spraying gun can move along a predetermined trajectory to realize spraying repair of the surface of a vehicle.

[0003] A Chinese patent document with the publication number CN110040114A discloses an automobile intelligent repair spraying robot and an automobile repair method, which comprises a base and a mechanical arm mechanism. A spraying gun can be installed on the mechanical arm mechanism, and the mechanical arm mechanism is adjusted in position through a first linear motion mechanism, a second linear motion mechanism, a third linear motion mechanism and a fourth linear motion mechanism, so that the mechanical arm mechanism moves to a predetermined position, and then the spraying gun can spray paint along a path predetermined by a system to repair.

[0004] In the process of paint spraying repair, the mechanical arm mechanism drives the spraying gun to move for repair. In some unexpected situations (such as human error, error of coordinate points in the program, loosening of the mechanical track, etc.), the spraying gun and the vehicle body will collide, thereby causing great loss. SUMMARY

[0005] The application provides an automobile repair spraying robot.

[0006] The application adopts the following technical scheme:

[0007] The automobile repair spraying robot comprises a vehicle repair platform, a walking mechanism, a robot body and a spraying gun arranged at one end of the robot body. One end of the robot body is provided with a mounting column, the spraying gun is connected to the mounting column, and an anti-collision assembly is mounted on the outer wall of the mounting column. The anti-collision assembly comprises a first cylinder slidingly arranged on the outer wall of the mounting column, a second cylinder slidingly arranged on the outer wall of the first cylinder, and a first damping piece arranged between the first cylinder and the second cylinder. A locking piece for limiting the sliding of the first cylinder is arranged between the first cylinder and the mounting column, and one end of the second cylinder protrudes from the end of the first cylinder.

[0008] When one end of the second cylinder is pressed to slide on the outer wall of the first cylinder body, the first damping piece is compressed, and the second cylinder can release the positioning effect of the locking piece on the first cylinder. The outer wall of the mounting column is provided with a second damping piece, and the second damping piece is connected to the side of the first cylinder away from the spraying gun.

[0009] The first cylinder is hinged with a baffle on the inner wall of one end close to the opening, a reset member is arranged between the inner wall of the first cylinder and the baffle, the second cylinder is provided with an abutting member extending in the first cylinder, the abutting member can drive the baffle to extend in the direction parallel to the axis of the first cylinder, when the second cylinder slides, the abutting member and the baffle are separated, and the reset member drives the baffle to extend in the radial direction of the first cylinder, at this time, the spray gun faces the baffle.

[0010] By adopting the above technical scheme, when the paint is sprayed to maintain the surface of the vehicle, the first cylinder is positioned by the locking member, so that the first cylinder will not slip and is not easy to affect the spraying. When the spray gun moves towards the vehicle due to an accident, the second cylinder first hits the vehicle, then the second cylinder slides relative to the first cylinder, the first damping member is compressed, the positioning effect of the first cylinder by the locking member is released, so that the first cylinder can also slide on the mounting column, thereby the second damping member is used for secondary energy dissipation and damping, thereby reducing the damage to the vehicle and the damage to the robot body.

[0011] Optionally, the first cylinder is provided with a connecting seat at one end close to the second damping member, the mounting column slides through the connecting seat, the locking member includes a locking rod slidingly arranged in the connecting seat and a first elastic member arranged on the side wall of the locking rod, and a locking groove for inserting the locking rod is arranged on the side wall of the mounting column; when the second cylinder slides, the locking rod can slide in the radial direction of the first cylinder and be separated from the locking groove.

[0012] By adopting the above technical scheme, after the second cylinder slides, the locking rod is driven to slide, so that the first cylinder can slide on the mounting column, thereby the second damping member can start damping and energy dissipation.

[0013] Optionally, the second cylinder is provided with an unlocking rod, one end of the locking rod exceeds the surface of the connecting seat, and under the action of the first elastic member, the locking rod abuts against the unlocking rod; a through slot is arranged on the unlocking rod, when the second cylinder slides, the locking rod moves to the through slot, and under the action of the first elastic member, the locking rod passes through the through slot.

[0014] By adopting the above technical scheme, when the second cylinder slides, the unlocking rod passes through the through slot and pushes the locking rod to slide, so that the locking rod slides out of the insertion slot and releases the positioning effect on the first cylinder.

[0015] Optionally, the length of the baffle is less than the radius of the first cylinder, the connecting seat and the end face of the first cylinder are in sliding connection, the end face of the first cylinder is provided with an extension slot extending along the radial direction of the first cylinder, one end of the extension slot coincides with the center of the first cylinder, when the baffle rotates to extend along the radial direction of the first cylinder, the baffle faces the extension slot, the inner wall of the one end of the extension slot close to the center of the first cylinder is provided with a pushing piece, the pushing piece can drive the mounting column to abut against the other end of the extension slot, the connecting seat is provided with a limiting block, the limiting block extends in the extension slot, so that the mounting column abuts against the one end of the extension slot close to the pushing piece, when the second cylinder slides, the limiting block can be synchronously brought out of the extension slot.

[0016] By adopting the above technical scheme, the length of the baffle is less than the radius of the first cylinder, so when the baffle rotates to be parallel to the axial direction of the first cylinder, the length of the baffle is reduced, and when the limiting block is brought out of the extension slot, the mounting column can relatively displace in the extension slot, so that the spray gun is aligned to the baffle, if the impact force is large, the first cylinder slides backward by a large displacement, and the spray gun can abut against the baffle, thereby avoiding that the spray gun scratches the vehicle.

[0017] Optionally, the connecting seat is provided with a mounting cavity close to one side of the first cylinder, the limiting block is slidingly arranged in the mounting cavity, the surface of the connecting seat is provided with a giving slot, the giving slot is in communication with the mounting cavity, and the limiting block is provided with a supporting rod penetrating through the giving slot; the second cylinder is provided with an extension rod, the extension rod is provided with a positioning slot, the supporting rod penetrates through the positioning slot, and the inner wall of the positioning slot abuts against the supporting rod and pushes the supporting rod to slide when the second cylinder slides.

[0018] By adopting the above technical scheme, when the second cylinder slides, the supporting rod can be driven to slide by the extension rod, so that the limiting block is brought out of the extension slot.

[0019] Optionally, the connecting seat is provided with a guide seat close to one side of the first cylinder, and the surface of the first cylinder is provided with a guide slot for sliding of the guide seat.

[0020] Optionally, the inner wall of the extension slot is provided with a containing slot, the pushing piece comprises a pushing column slidingly arranged in the containing slot and a second elastic piece arranged in the containing slot, and the second elastic piece provides an acting force for sliding of the pushing column out of the containing slot.

[0021] By adopting the above technical scheme, the second elastic piece provides the acting force, so that the mounting column relatively slides in the extension slot.

[0022] Optionally, the side wall of the mounting column is provided with a protruding block, and the second damping piece is arranged between the connecting seat and the protruding block.

[0023] Optionally, the abutting member comprises an abutting rod arranged on the inner wall of the second cylinder, the first cylinder side wall is provided with a slot for sliding the abutting rod, and the abutting rod is bent at one end of the inner cavity of the first cylinder, and when the baffle is parallel to the axis of the first cylinder, one end of the baffle can abut the bent part of the abutting rod.

[0024] By adopting the above technical scheme, the unlocking and positioning of the baffle are both convenient.

[0025] In summary, the present application has at least one of the following beneficial effects:

[0026] 1. When repairing a vehicle, the vehicle is placed in a vehicle repair platform, and then the movement trajectory of the walking mechanism and the robot body is specified according to the damage of the vehicle surface, so as to spray and maintain the vehicle surface; if the spray gun and the vehicle collide in case of accident, the second cylinder first collides on the vehicle, then slides backward relative to the first cylinder, and the positioning effect of the locking member on the first cylinder is released, so that the first cylinder can also slide, first through the first damping member, then the second damping member can be synchronized to reduce the damage to the robot body;

[0027] 2. When the second cylinder slides under pressure, the reset member drives the baffle to slide out, and the mounting column slides in the extension slot relative to the baffle, so that the spray gun can be directed towards the baffle, thereby reducing the situation that the spray gun is directly inserted into the surface of the vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a structural schematic diagram of an embodiment of the present application;

[0029] Figure 2 is a schematic diagram of the robot body in the embodiment of the present application;

[0030] Figure 3 is a schematic diagram of the anti-collision assembly in the embodiment of the present application;

[0031] Figure 4 is a cross-sectional schematic diagram of the embodiment of the present application;

[0032] Figure 5 is an exploded schematic diagram of the connecting seat in the embodiment of the present application.

[0033] Explanation of reference signs: 1, vehicle repair platform; 2, walking mechanism; 3, robot body; 4, spray gun; 5, mounting column; 6, anti-collision assembly; 61, first cylinder; 62, second cylinder; 63, first damping piece; 7, locking piece; 71, locking column; 72, first elastic piece; 8, baffle; 9, reset piece; 10, abutting piece; 101, abutting rod; 11, connecting seat; 12, second damping piece; 13, locking groove; 14, unlocking rod; 15, through groove; 16, extension groove; 17, pushing piece; 171, pushing column; 172, second elastic piece; 18, limiting block; 19, mounting cavity; 20, accommodation groove; 21, supporting rod; 22, extension rod; 23, positioning groove; 24, guide seat; 25, guide groove; 26, containing groove; 27, protruding block; 28, ring. DETAILED DESCRIPTION

[0034] The application will be further described in detail below with reference to the accompanying drawings.

[0035] The application discloses an automobile repair spraying robot, referring to Figure 1 and Figure 2 , comprising a vehicle repair platform 1, a walking mechanism 2 mounted in the vehicle repair platform 1, and a robot body 3 mounted on the walking mechanism 2. Referring to Figure 3 and Figure 4 , the robot body 3 is provided with a spray gun 4 at one end away from the walking mechanism 2, and the spray gun 4 is used to spray atomized paint to repair the surface of the vehicle. The walking mechanism 2 can drive the robot body 3 to move in the XY axis direction, and the specific structure can be driven by a walking chain or a lead screw, which is prior art and not the focus of the application, and will not be described here. After the vehicle to be repaired is placed on the vehicle repair platform 1, the movement trajectory of the robot body 3 is determined according to the damage condition of the vehicle surface, so that the robot body 3 can spray paint repair according to the predetermined path.

[0036] Referring to Figure 2 and Figure 3 , the robot body 3 is provided with a mounting column 5 at one end, and the spray gun 4 is mounted at the end of the mounting column 5. The mounting column 5 can be a hollow structure, which is convenient for the wiring of the feed pipe of the spray gun 4. The outer wall of the mounting column 5 is provided with an anti-collision assembly 6, which is used to reduce the damage to the robot body 3 when the spray gun 4 collides with the vehicle in an unexpected situation.

[0037] Referring to Figure 3 and Figure 4The anti-collision assembly 6 comprises a first cylinder 61 fixed to the outer wall of the mounting column 5, a second cylinder 62 sleeved on the outer wall of the first cylinder 61, and a first damping member 63 fixed to the outer wall of the first cylinder 61. The spray gun 4 is located in the inner cavity of the first cylinder 61, and the spray gun 4 and the opening of the first cylinder 61 are at a certain distance. The outer wall of the end of the first cylinder 61 away from the opening is fixed with a ring 28, the first damping member 63 is a spring, and the two ends of the spring are matched with a damping pad or a damping pad, and the spring is connected between the second cylinder 62 and the ring 28. The end of the second cylinder 62 away from the first damping member 63 has an end portion that exceeds the first cylinder 61. When impacted, the second cylinder 62 first impacts the vehicle body, then slides backward relative to the first cylinder 61, and compresses the first damping member 63, thereby damping and dissipating energy.

[0038] The first cylinder 61 is slidingly mounted on the mounting column 5, and the locking member 7 is mounted on the first cylinder 61. The locking member 7 is used to position the first cylinder 61, so that the first cylinder 61 is not easily slid at will during the paint repair process to affect the paint spraying. The second damping member 12 is mounted between the end of the mounting column 5 close to the robot body 3 and the end face of the first cylinder 61. When the second cylinder 62 slides, the positioning effect of the locking member 7 on the first cylinder 61 can be released, so that the first cylinder 61 can slide and compress the second damping member 12, so that the second damping member 12 performs two-stage damping and energy dissipation.

[0039] Referring to Figure 3 and Figure 4 The outer wall of the mounting column 5 is fixed with a protrusion 27, and the end face of the first cylinder 61 is provided with a connecting seat 11 which is slidingly sleeved on the outer wall of the mounting column 5. When the first cylinder 61 slides on the surface of the mounting column 5, the connecting seat 11 slides synchronously. The second damping member 12 is a spring connected between the connecting seat 11 and the protrusion 27, and the two ends of the spring are fixed with damping pads or damping pads. The connecting seat 11 and the mounting column 5 can be provided with a groove block cooperation structure, so that the connecting seat 11 cannot rotate circumferentially on the mounting column 5, but can only linearly slide.

[0040] The locking member 7 comprises a locking column 71 slidingly arranged on the connecting seat 11 and a first elastic member 72 mounted on the side wall of the locking column 71. The connecting seat 11 is provided with a cavity to provide a space for mounting the first elastic member 72. The first elastic member 72 is preferably a spring which is sleeved on the outer wall of the locking column 71. The outer wall of the mounting column 5 is provided with a locking groove 13. By applying a certain force to the locking column 71, the locking column 71 can be inserted into the locking groove 13, and at this time the first elastic member 72 is compressed to provide a force for the locking column 71 to slide out of the locking groove 13.

[0041] An unlocking rod 14 is fixed on the second cylinder 62, extending towards the connecting seat 11. One end of the locking pin 71 abuts against the inner wall of the unlocking rod 14, at which point the locking pin 71 is inserted into the locking groove 13, preventing the first cylinder 61 from sliding. A through groove 15 is provided on the unlocking rod 14. When the second cylinder 62 slides, the unlocking rod 14 slides synchronously. When the locking pin 71 moves to the position of the through groove 15, under the action of the first elastic element 72, the locking pin 71 can slide out and pass through the through groove 15, thereby releasing the positioning effect on the connecting seat 11.

[0042] Reference Figure 3 and Figure 4 A baffle 8 is hinged to the inner wall of the first cylinder 61 near its opening. One end of the baffle 8 is hinged to the inner wall of the first cylinder 61 by a pin, and a reset member 9 is installed between the baffle 8 and the inner wall of the first cylinder 61. The reset member 9 is a torsion spring. Under the action of the torsion spring, the extension direction of the baffle 8 in its natural state coincides with the radial direction of the first cylinder 61. An abutment member 10 is installed on the second cylinder 62. The abutment member 10 extends into the inner cavity of the first cylinder 61. The abutment member 10 cooperates with the baffle 8, allowing the baffle 8 to extend in a direction parallel to the axis of the first cylinder 61 and protrude beyond the opening of the first cylinder 61. At this time, the end of the baffle 8 away from the first cylinder 61 is still in the inner cavity of the second cylinder 62.

[0043] When the second cylinder 62 slides under pressure, the abutment 10 and the baffle 8 are misaligned. Under the action of the reset member 9, the baffle 8 can rotate to its natural state, and in this state, it can face the spray gun 4. Both sides of the baffle 8 can be bonded with elastic layers such as rubber. When the first cylinder 61 slides on the mounting post 5, the spray gun 4 moves towards the opening of the first cylinder 61. When the movement distance is large, the spray gun 4 can abut against the baffle 8, thereby preventing the spray gun 4 from colliding with the vehicle body and causing greater damage to the vehicle body and the spray gun 4.

[0044] Reference Figure 4 and Figure 5 In a further embodiment, since a longer baffle 8 would require a longer second cylinder 62, increasing the distance between the overall spray gun 4 and the opening of the second cylinder 62, potentially affecting the painting effect, the length of the baffle 8 is less than the radius of the first cylinder 61 in this embodiment. One end of the first cylinder 61 is slidably connected to the connecting seat 11, with the sliding direction parallel to the radial direction of the first cylinder 61.

[0045] An extension groove 16 is formed on the end face of the first cylinder 61. The extension groove 16 has an oblong shape and extends radially along the first cylinder 61. One end of the extension groove 16 coincides with the center of the first cylinder 61, and the mounting post 5 passes through the extension groove 16. When the baffle 8 is rotated to extend radially along the first cylinder 61, the baffle 8 is directly opposite the extension groove 16. A pusher 17 is installed on the inner wall of the extension groove 16 at the center of the first cylinder 61. The pusher 17 can drive the mounting post 5 to abut against the other end of the extension groove 16.

[0046] A mounting cavity 19 is provided at one end of the connecting seat 11 near the first cylinder 61. A limiting block 18 is slidably disposed in the mounting cavity 19, and the limiting block 18 slides along a direction parallel to the axis of the mounting post 5. When the first cylinder 61 is positioned on the mounting post 5 by the locking member 7, the mounting post 5 abuts against the end of the extension groove 16 where the center of the first cylinder 61 coincides, and the limiting block 18 is engaged in the extension groove 16, so that the first cylinder 61 and the mounting post 5 can be in a coaxial state. The shape of the limiting block 18 is adapted to the extension groove 16. When the second cylinder 62 is pressed and slides, the second cylinder 62 can drive the limiting block 18 to move away from the extension groove 16, so that the limiting block 18 disengages from the extension groove 16. Then, under the action of the pushing member 17, the mounting post 5 slides relative to the extension groove 16, so that the first cylinder 61 and the mounting post 5 are no longer coaxial, and the spray gun 4 can be positioned directly opposite the baffle 8.

[0047] Reference Figure 4 and Figure 5 Furthermore, an extension rod 22 is fixed to the second cylinder 62, extending horizontally towards the connecting seat 11, and a positioning groove 23 is formed on the extension rod 22. A clearance groove 20 is formed on the surface of the connecting seat 11, and a support rod 21 is fixed to the limiting block 18. The support rod 21 passes through the clearance groove 20 and through the positioning groove 23. When the second cylinder 62 slides, the inner wall of the positioning groove 23 abuts against the support rod 21 and pushes the support rod 21 to move, thereby causing the limiting block 18 to slide and finally disengage from the extension groove 16.

[0048] Reference Figure 5 To improve the stability of the connection between the connecting seat 11 and the first cylinder 61, two guide seats 24 are fixed on the connecting seat 11. The guide seats 24 are dovetail-shaped or T-shaped groove-shaped structures. The first cylinder 61 is provided with guide grooves 25 that cooperate with the guide seats 24, so that the connecting seat 11 and the first cylinder 61 can slide relative to each other without separating.

[0049] Furthermore, refer to Figure 4An inner wall of the extension groove 16 near the center of the first cylinder 61 has a cylindrical receiving groove 26 extending radially along the first cylinder 61. The pushing member 17 includes a second elastic member 172 installed in the receiving groove 26 and a pushing column 171 slidably installed in the receiving groove 26. The second elastic member 172 is a spring, with one end connected to the inner bottom surface of the receiving groove 26 and the other end connected to the end face of the pushing column 171. The second elastic member 172 has sufficient elastic force to push the first cylinder 61 and the mounting column 5 to slide relative to each other when the limiting block 18 is disengaged from the extension groove 16, thereby aligning the spray gun 4 with the baffle 8.

[0050] In a further embodiment, refer to Figure 4 The abutment member 10 includes an abutment rod 101 fixed to the inner wall of the second cylinder 62. A slot is formed on the side wall of the first cylinder 61, extending along its axial direction. The abutment rod 101 passes through the slot and extends into the inner cavity of the first cylinder 61. One end of the abutment rod 101 inside the first cylinder 61 is bent, forming a right-angled structure. When the baffle 8 is adjusted to be parallel to the axial direction of the first cylinder 61, the end of the baffle 8 can abut against the bent position, making it difficult for the baffle 8 to rotate. When the second cylinder 62 slides, the abutment rod 101 separates from the baffle 8, allowing the baffle 8 to rotate.

[0051] The implementation principle of an automotive repair and painting robot according to this application embodiment is as follows: During the automotive repair process, if an accidental collision occurs, the second cylinder 62 will first collide with the car body. An elastic layer structure can be bonded to the end of the second cylinder 62 to reduce damage. Furthermore, the second cylinder 62 can slide, allowing the first shock absorber 63 to dissipate energy and reduce vibration. The first cylinder 61 can also slide, allowing the second shock absorber 12 to further dissipate energy and reduce vibration, thereby reducing damage to the robot body 3. When the first cylinder 61 slides, the pusher 17 can drive the first cylinder 61 and the mounting post 5 to become eccentric, causing the spray gun 4 to align with the baffle 8. The spray gun 4 will ultimately only impact the baffle 8 and will not hit the car body. After an impact, repairs are performed first, and then the anti-collision component 6 can be manually reset after the repairs are completed.

[0052] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automotive repair and painting robot, characterized in that: The system includes a vehicle repair platform (1), a walking mechanism (2), a robot body (3), and a spray gun (4) disposed at one end of the robot body (3). A mounting post (5) is provided at one end of the robot body (3), and the spray gun (4) is connected to the mounting post (5). An anti-collision component (6) is installed on the outer wall of the mounting post (5). The anti-collision component (6) includes a first cylinder (61) slidably disposed on the outer wall of the mounting post (5), a second cylinder (62) slidably disposed on the outer wall of the first cylinder (61), and a first shock absorber (63) disposed between the first cylinder (61) and the second cylinder (62). A locking member (7) for limiting the sliding of the first cylinder (61) is provided between the first cylinder (61) and the mounting post (5). One end of the second cylinder (62) extends beyond the first cylinder (61). When one end of the second cylinder (62) is pressed and slides on the outer wall of the first cylinder (61), the first shock absorber (63) is compressed, and the second cylinder (62) can release the positioning effect of the locking member (7) on the first cylinder (61); the outer wall of the mounting column (5) is provided with a second shock absorber (12), and the second shock absorber (12) is connected to the side of the first cylinder (61) away from the spray gun (4); A baffle (8) is hinged to the inner wall of the first cylinder (61) near the opening. A reset member (9) is provided between the inner wall of the first cylinder (61) and the baffle (8). The second cylinder (62) is provided with an abutment member (10) extending into the first cylinder (61). The abutment member (10) can drive the baffle (8) to extend in a direction parallel to the axis of the first cylinder (61). When the second cylinder (62) slides, the abutment member (10) and the baffle (8) separate, and the reset member (9) drives the baffle (8) to extend in the radial direction of the first cylinder (61). At this time, the spray gun (4) is facing the baffle (8).

2. The automotive repair and painting robot according to claim 1, characterized in that: The first cylinder (61) is provided with a connecting seat (11) at one end near the second shock absorber (12). The mounting post (5) slides through the connecting seat (11). The locking member (7) includes a locking post (71) slidably disposed in the connecting seat (11) and a first elastic member (63) disposed on the side wall of the locking post (71). The side wall of the mounting post (5) is provided with a locking groove (13) for the locking post (71) to be inserted. When the second cylinder (62) slides, it can drive the locking post (71) to slide in a radial direction parallel to the first cylinder (61) and disengage from the locking groove (13).

3. The automotive repair and painting robot according to claim 2, characterized in that: The second cylinder (62) is provided with an unlocking rod (14), and one end of the locking pin (71) extends beyond the surface of the connecting seat (11). Under the action of the first elastic member (63), the locking pin (71) abuts against the unlocking rod (14). The unlocking rod (14) is provided with a through groove (15). When the second cylinder (62) slides, the locking pin (71) moves to the through groove (15) and passes through the through groove (15) under the action of the first elastic member (63).

4. The automotive repair and painting robot according to claim 3, characterized in that: The length of the baffle (8) is less than the radius of the first cylinder (61). The connecting seat (11) is slidably connected to the end face of the first cylinder (61). An extension groove (16) is provided on the end face of the first cylinder (61). The extension groove (16) extends along the radial direction of the first cylinder (61). One end of the extension groove (16) coincides with the center of the first cylinder (61). When the baffle (8) rotates to extend along the radial direction of the first cylinder (61), the baffle (8) faces the extension groove (16). The extension groove (16) is close to... A pusher (17) is provided on the inner wall of one end of the center of the first cylinder (61). The pusher (17) can drive the mounting post (5) to abut against the other end of the extension groove (16). A limit block (18) is provided in the connecting seat (11). The limit block (18) extends into the extension groove (16) so that the mounting post (5) abuts against the end of the extension groove (16) near the pusher (17). When the second cylinder (62) slides, it can synchronously drive the limit block (18) to slide out of the extension groove (16).

5. The automotive repair and painting robot according to claim 4, characterized in that: The connecting seat (11) has an installation cavity (19) on the side near the first cylinder (61). The limiting block (18) is slidably disposed in the installation cavity (19). The surface of the connecting seat (11) has a relief groove (20). The relief groove (20) is connected to the installation cavity (19). The limiting block (18) is provided with a support rod (21) that passes through the relief groove (20). The second cylinder (62) is provided with an extension rod (22). The extension rod (22) has a positioning groove (23). The support rod (21) passes through the positioning groove (23). When the second cylinder (62) slides, the inner wall of the positioning groove (23) abuts against the support rod (21) and pushes the support rod (21) to slide.

6. The automotive repair and painting robot according to claim 5, characterized in that: The connecting seat (11) is provided with a guide seat (24) on the side near the first cylinder (61), and the surface of the first cylinder (61) is provided with a guide groove (25) for sliding of the guide seat (24).

7. The automotive repair and painting robot according to claim 4, characterized in that: The inner wall of the extension groove (16) is provided with a receiving groove (26). The pushing member (17) includes a pushing column (171) slidably disposed in the receiving groove (26) and a second elastic member (12) disposed in the receiving groove (26). The second elastic member (12) provides the force for the pushing column (171) to slide out of the receiving groove (26).

8. The automotive repair and painting robot according to claim 4, characterized in that: The mounting column (5) has a protrusion (27) on its side wall, and the second shock absorber (12) is installed between the connecting seat (11) and the protrusion (27).

9. The automotive repair and painting robot according to claim 8, characterized in that: The abutment (10) includes an abutment rod (101) disposed on the inner wall of the second cylinder (62). The side wall of the first cylinder (61) is provided with a slot for the abutment rod (101) to slide. One end of the abutment rod (101) extending into the inner cavity of the first cylinder (61) is a bent structure. When the baffle (8) is rotated to be parallel to the axis of the first cylinder (61), one end of the baffle (8) can abut against the bent part of the abutment rod (101).

Images