Spraying robot for automobile maintenance

Abstract

The invention relates to the technical field of spraying equipment, in particular to an automobile maintenance spraying robot which comprises a support, a chain conveyor, a spraying robot body and a control unit are arranged on the support, a mounting seat is arranged on a chain of the chain conveyor, and a supporting seat and a clamping unit are arranged on the mounting seat; the clamping unit comprises a clamping plate assembly; the material suction unit comprises a lifting seat, and a plurality of suction cups are arranged on the lifting seat; two first guide plates, a top seat and a pressing seat are arranged on the support, and first limiting plates are arranged on the first guide plates; the control unit comprises a controller, a pressure sensor and a contact sensor. After a sheet metal part is placed on the supporting base, the chain type conveyor automatically conveys the sheet metal part, the clamping plate assembly automatically clamps the sheet metal part, the suction cup automatically sucks the sheet metal part tightly, the spraying robot body automatically sprays the sheet metal part, and the sprayed sheet metal part automatically falls off to complete discharging. The sheet metal part maintenance spraying device can improve the sheet metal part maintenance spraying efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of spraying equipment, and in particular to an automobile repair spraying robot. Background Art

[0002] After a car collision, the body needs to be repaired. The factory usually uses sheet metal to repair the car sheet metal parts, and then sprays them after the sheet metal is completed. The spraying work is done by a spray robot.

[0003] Through searching, Chinese patent announcement number CN221619790U discloses an automatic spraying tooling structure for an industrial robot for repairing and spraying automobile sheet metal parts, which relates to the technical field of automatic spraying equipment, including an operating table, a spraying robot body is fixedly installed on the top of the operating table near the back, a first motor is fixedly installed on the top of the operating table near one side, a fixing rod is fixedly installed on the top of the operating table near one side of the first motor, a groove is provided on the top of the fixing rod, a slider is slidably connected inside the groove, and a screw hole is provided on one side of the slider. The utility model adopts the above structure, and the screw rod is rotated by rotating the first motor, and the slider slides in the groove under the action of the screw hole, and the slider drives the fixed seat, the turntable and the sheet metal workpiece to slide to the working area of ​​the spraying robot body, achieving the purpose of conveying the sheet metal workpiece, and at the same time, the fixed seat slides stably under the action of the guide component, and this structure improves the efficiency and stability of conveying the sheet metal workpiece.

[0004] With respect to the above-mentioned related technologies, the inventors found the following defects: the loading, clamping, conveying, spraying and unloading of sheet metal parts require workers to manually operate step by step, which is cumbersome and affects the maintenance and spraying efficiency of sheet metal parts; in addition, the operation of each step is not completed in a coherent manner, resulting in a certain delay after each step, which further affects the maintenance and spraying efficiency of sheet metal parts, and therefore needs to be improved. Summary of the invention

[0005] In order to improve the repair and spraying efficiency of sheet metal parts, the present application provides an automobile repair and spraying robot.

[0006] The automobile repair spraying robot provided in the present application adopts the following technical solution: the automobile repair spraying robot comprises a bracket, on which a chain conveyor, a spraying robot body and a control unit are arranged, a mounting seat is arranged on the chain of the chain conveyor, and a supporting seat and a clamping unit are arranged on the mounting seat;

[0007] The support seat is used for placing the sheet metal parts, and a suction unit is provided on the support seat, the suction unit includes a lifting seat connected to the support seat in a vertical sliding direction, and a plurality of suction cups are provided on the lifting seat;

[0008] The clamping unit is provided with two groups and is respectively arranged on the left and right sides of the support seat, and the clamping unit comprises a clamping plate assembly connected to the mounting seat through an elastic telescopic rod;

[0009] The bracket is provided with two first guide plates for the corresponding clamping plate assemblies to move against each other, a top seat and a pressure seat arranged in sequence along the conveying direction of the chain conveyor, the spacing between the two first guide plates gradually decreases from the input end of the chain conveyor to the output end of the chain conveyor, a first limit plate is provided on one end of the first guide plate facing the output end of the chain conveyor, and the first limit plate extends along the length direction of the chain conveyor; the top seat is provided with an upwardly inclined rising surface, and the pressure seat is provided with a downwardly inclined pressing surface;

[0010] The control unit includes a controller, a pressure sensor disposed on a support seat, and a contact sensor disposed on a bracket, and the pressure sensor, the contact sensor, the chain conveyor, and the spray robot body are all coupled to the controller;

[0011] When the sheet metal is placed on the support seat, the sheet metal will be pressed against the pressure sensor, and the pressure sensor will transmit a start signal to the controller. The controller will control the chain conveyor to start, and the two groups of clamping plate assemblies will respectively move to contact the corresponding first guide plates and approach each other, so that the two groups of clamping plate assemblies jointly clamp the sheet metal on the support seat; then the clamping plate assembly will move to contact the first limit plate, and the lifting seat will move to contact the rising surface and push the suction cup to rise and suck on the sheet metal; thereafter, the clamping plate assembly will be separated from the first limit plate, and the elastic telescopic rod will return to its natural state and prompt the clamping plate assembly to move away from the sheet metal; then the mounting seat will contact the contact sensor, and the contact sensor will transmit a spraying signal to the controller, and the controller will control the spraying robot body to spray the sheet metal on the support seat; then the lifting seat will move to contact the lower pressure surface and prompt the suction cup to move downward and separate from the sheet metal, and the support seat will flip downward after moving to the output end of the chain conveyor and cause the sheet metal to fall automatically.

[0012] Optionally, it further includes a baffle, on which a lifting rod is provided, and the lifting rod slides in a vertical direction to fit with the bracket, and when the baffle is in the lowest state, the lowest point of the baffle will not be higher than the lowest point of the sheet metal part on the support seat;

[0013] A sliding seat is provided on the mounting seat, and an upwardly inclined pushing surface is provided on the sliding seat. After the two sets of clamping plate assemblies are clamped together on the sheet metal part and before the lifting seat abuts against the rising surface, the front end of the sheet metal part on the supporting seat will abut against the baffle, and then the pushing surface will move to abut against the lifting rod and push the baffle to rise above the sheet metal part on the supporting seat.

[0014] Optionally, the clamping plate assembly includes a mounting plate connected to the mounting seat through an elastic telescopic rod, a pressing plate that can be turned over on a vertical plane is rotatably connected to the mounting plate, and the pressing plate and the mounting plate are connected to the same torsion spring;

[0015] During the movement, the mounting seat drives the mounting plate to move against the first limit plate, so that the two pressing plates are clamped together on the sheet metal part on the support seat;

[0016] The bracket is provided with two second guide plates for the corresponding pressing plates to move against each other, the spacing between the two second guide plates gradually decreases from the input end of the chain conveyor to the output end of the chain conveyor, and a second limit plate is provided on one end of the second guide plate facing the output end of the chain conveyor, and the second limit plate extends along the length direction of the chain conveyor;

[0017] After the baffle rises to above the sheet metal on the support seat and before the lifting seat contacts the rising surface, the two pressure plates will move to contact the corresponding second guide plates and approach each other, so that the pressure plate presses the sheet metal on the support seat onto the support seat, and then the pressure plate will move to contact the second limit plate; when the mounting plate is detached from the first limit plate, the pressure plate will be detached from the second limit plate.

[0018] Optionally, the suction cup is connected to the lifting seat through a connecting tube, the connecting tube is connected to the interior of the suction cup, and the connecting tube is provided with an air hole extending in a horizontal direction, an insertion rod is slidably embedded in the air hole, the insertion rod and the connecting tube are connected to the same spring, when the spring is in a natural state, the insertion rod will be inserted into the air hole and block the air hole.

[0019] Optionally, a magnetic plate is provided on the bracket, and all the plug plates are connected to the same iron plate. After the spraying of the spray robot body is completed and before the support seat moves to the output end of the chain conveyor, the iron plate will move to the magnetic plate, and the magnetic plate will adsorb and fix the iron plate and cause the plug rod to move out of the air hole. At this time, the inside of the connecting pipe will be connected to the outside of the connecting pipe through the air hole.

[0020] Optionally, the bracket is provided with an inclined material guide plate, the high end of which is located at the output end of the chain conveyor and is used to receive sheet metal parts dropped from the support seat, and the low end of the material guide plate is provided with a horizontally arranged collecting plate.

[0021] In summary, this application includes the following beneficial technical effects:

[0022] 1. By placing the sheet metal parts in the front position on the support seat, workers can realize automatic adjustment of the horizontal and vertical positions of the sheet metal parts, automatic limit fixation of the sheet metal parts, automatic precise spraying of the sheet metal parts, automatic unloading and collection of the sheet metal parts, thereby improving the maintenance and spraying efficiency of the sheet metal parts;

[0023] 2. During the repair and spraying process of sheet metal parts, workers need to place the sheet metal parts in the front position on the support seat. Then, as the sheet metal parts move forward, the pressure plate and the baffle plate will jointly adjust the position of the sheet metal parts on the support seat, so that the sheet metal parts can automatically and accurately move to the specified position, ensuring the spraying effect of the sheet metal parts in the subsequent process;

[0024] 3. The pressing plate can automatically press the sheet metal part during its forward movement, so that the suction cup can stably suck the lower surface of the sheet metal part, and the pressing plate can automatically move away from the sheet metal part before the sheet metal part is sprayed, so that the pressing plate will not affect the spraying of the sheet metal part by the spray robot body;

[0025] 4. Before the sheet metal is cut, the inside of the connecting tube will be connected to the outside of the connecting tube through the air holes, and the external air will enter the suction cup through the air holes and the connecting tube, so that the inside of the suction cup is no longer in a vacuum state, so that the suction cup can be detached from the sheet metal in the subsequent process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application;

[0027] Figure 2 is a schematic structural diagram of a mounting base and a clamping unit according to an embodiment of the present application;

[0028] Figure 3 is a schematic structural diagram of a mounting base and a first guide plate according to an embodiment of the present application;

[0029] Figure 4 It is a schematic structural diagram of a mounting base, a first guide plate and a baffle according to an embodiment of the present application;

[0030] Figure 5 It is a schematic diagram of the structure of the mounting base, the first guide plate, the baffle plate and the second guide plate of the embodiment of the present application;

[0031] Figure 6 It is a structural schematic diagram of a support base according to an embodiment of the present application;

[0032] Figure 7 It is a schematic diagram of the transverse cross-sectional structure of the support seat and the material suction unit of the embodiment of the present application;

[0033] Figure 8 It is a schematic diagram of the longitudinal cross-sectional structure of the support seat and the material suction unit of the embodiment of the present application;

[0034] Fig. 9 It is a schematic diagram of the structure of the mounting seat, top seat and pressure seat of the embodiment of the present application;

[0035] Fig.10 It is a schematic diagram of the cross-sectional structure of the support seat, top seat and pressure seat of the embodiment of the present application.

[0036] Figure numerals: 1, bracket; 11, first guide plate; 111, first limit plate; 12, baffle; 121, lifting rod; 13, limit ring; 14, second guide plate; 141, second limit plate; 15, top seat; 151, rising surface; 16, pressure seat; 161, lower pressure surface; 17, magnetic plate; 18, guide plate; 181, collecting plate; 2, chain conveyor; 3, spray robot body; 4, mounting seat; 41, support seat; 411, concave Groove; 412, accommodating groove; 42, sliding seat; 421, pushing surface; 5, control unit; 51, controller; 52, pressure sensor; 53, contact sensor; 6, clamping unit; 61, clamping plate assembly; 611, mounting plate; 612, pressure plate; 613, torsion spring; 62, elastic telescopic rod; 7, suction unit; 71, lifting seat; 72, connecting pipe; 721, air hole; 73, suction cup; 74, insertion rod; 75, spring; 76, iron plate. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-10 This application is described in further detail.

[0038] The present application embodiment discloses a car repair spraying robot. Figure 1 and Figure 2 As shown, the automobile repair and painting robot includes a bracket 1, on which a chain conveyor 2 and a painting robot body 3 are mounted, and a mounting seat 4 is mounted on the chain of the chain conveyor 2. In the present embodiment, there are three mounting seats 4, on which a support seat 41 is mounted, and the sheet metal parts to be repaired and sprayed will be placed.

[0039] It is worth noting that the shape of the upper surface of the support seat 41 matches the inner shape of the sheet metal part to be repaired and sprayed, thereby improving the stability of the sheet metal part during the repair and spraying process.

[0040] The bracket 1 is provided with a control unit 5 , which includes a controller 51 and a pressure sensor 52 . The upper surface of the support base 41 is provided with a groove 411 , and the pressure sensor 52 is fixedly embedded in the groove 411 , so that the pressure sensor 52 is installed on the support base 41 .

[0041] It is worth noting that the pressure sensor 52 and the chain conveyor 2 are both coupled to the controller 51. When the worker places the sheet metal on the support seat 41, the sheet metal will be pressed against the pressure sensor 52, and the pressure sensor 52 will transmit a start signal to the controller 51. The controller 51 will control the chain conveyor 2 to start, so that the chain conveyor 2 can transport the sheet metal.

[0042] like Figure 2 and Figure 3As shown, two groups of clamping units 6 are provided on the mounting seat 4, and the two groups of clamping units 6 are respectively arranged on the left and right sides of the support seat 41. The clamping unit 6 includes a clamping plate assembly 61, and the clamping plate assembly 61 includes a mounting plate 611 connected to the mounting seat 4 through an elastic telescopic rod 62. The length direction of the elastic telescopic rod 62 is the same as the width direction of the chain conveyor 2. The mounting plate 611 is rotatably connected to a pressure plate 612 that can be flipped on a vertical plane. The pressure plate 612 and the mounting plate 611 are commonly connected to the same torsion spring 613.

[0043] Two first guide plates 11 are installed on the bracket 1 , and the first guide plates 11 correspond to the mounting plates 611 one by one. The distance between the two first guide plates 11 gradually decreases from the input end of the chain conveyor 2 to the output end of the chain conveyor 2 .

[0044] During the process of conveying sheet metal parts by the chain conveyor 2, the two mounting plates 611 will respectively move and contact the corresponding first guide plates 11, so that the two mounting plates 611 slide close to each other, and the two pressure plates 612 will jointly clamp the sheet metal parts on the support seat 41; if there is a deviation between the position of the sheet metal parts and the position to be processed, the sheet metal parts will be pushed to move by the pressure plates 612 during the clamping process, thereby realizing the adjustment of the longitudinal position of the sheet metal parts.

[0045] A first stop plate 111 is integrally formed on one end of the first guide plate 11 facing the output end of the chain conveyor 2, and the first stop plate 111 extends along the length direction of the chain conveyor 2. When the sheet metal is clamped by the two pressing plates 612, the mounting plate 611 will be separated from the first guide plate 11 and continue to contact the first stop plate 111, so that the mounting plate 611 and the sheet metal on the support seat 41 remain relatively still, so as to ensure the clamping effect of the two pressing plates 612 on the sheet metal.

[0046] like Figure 4 As shown, a baffle 12 is provided above the chain conveyor 2, and vertically arranged lifting rods 121 are installed on both sides of the baffle 12. Two limit rings 13 are installed on the bracket 1, and the limit rings 13 correspond to the lifting rods 121 one by one, and the lifting rods 121 are slidably embedded in the limit rings 13 along the vertical direction, so that the baffle 12 can only perform lifting movements.

[0047] When the baffle 12 is in the lowest state, the lowest point of the baffle 12 will not be higher than the lowest point of the sheet metal on the support seat 41. Therefore, after the sheet metal is clamped by the two pressure plates 612, the front end of the sheet metal on the support seat 41 can contact the baffle 12, and the baffle 12 will block the sheet metal from moving forward, causing the position of the sheet metal on the support seat 41 to change.

[0048] A sliding seat 42 is installed on the mounting seat 4, and an upwardly inclined pushing surface 421 is provided on the sliding seat 42. When the mounting seat 4 continues to move forward, the pushing surface 421 of the sliding seat 42 will move to contact the lifting rod 121, and the lifting rod 121 will drive the baffle 12 to rise above the sheet metal part on the supporting seat 41, so that the baffle 12 no longer hinders the advancement of the sheet metal part. At this time, the sheet metal part has moved to the specified position on the supporting seat 41, thereby realizing the adjustment of the lateral position of the sheet metal part.

[0049] To sum up, during the maintenance and spraying process of sheet metal parts, workers need to place the sheet metal parts in a front position on the support seat 41, and then during the forward movement of the sheet metal parts, the pressure plate 612 and the baffle 12 will jointly adjust the position of the sheet metal parts on the support seat 41, so that the sheet metal parts can automatically and accurately move to the specified position, thereby ensuring the spraying effect of the sheet metal parts in the subsequent process.

[0050] It is worth noting that when the sheet metal and the support seat 41 pass under the baffle 12, the upper surface of the sliding seat 42 will be separated from the lifting rod 121, and the baffle 12 will drop to its initial position due to its own gravity, so that the baffle 12 can adjust the position of subsequent sheet metal parts.

[0051] like Figure 5 As shown, two second guide plates 14 are installed on the bracket 1, and the second guide plates 14 correspond to the pressure plates 612 one by one. The distance between the two second guide plates 14 gradually decreases from the input end of the chain conveyor 2 to the output end of the chain conveyor 2.

[0052] After the lateral position adjustment of the sheet metal is completed, the two pressing plates 612 will move to contact the corresponding second guide plates 14 respectively, so that the two pressing plates 612 are flipped and approached to each other, and the two pressing plates 612 will jointly press the sheet metal onto the support seat 41.

[0053] A second stop plate 141 is integrally formed on one end of the second guide plate 14 facing the output end of the chain conveyor 2, and the second stop plate 141 extends along the length direction of the chain conveyor 2. When the sheet metal is pressed and fixed by the pressing plate 612, the pressing plate 612 will be separated from the second guide plate 14 and continue to contact the second stop plate 141, so that the sheet metal on the mounting plate 611 and the support seat 41 remain relatively still, so as to ensure the pressing effect of the two pressing plates 612 on the sheet metal.

[0054] like Figure 6 and Figure 7As shown, a suction unit 7 is provided on the support seat 41, and the suction unit 7 includes a lifting seat 71 located below the support seat 41, and the upper surface of the lifting seat 71 is connected to a plurality of suction cups 73 through a connecting pipe 72, and the connecting pipe 72 is slidably penetrated in the support seat 41 along the vertical direction, so that the lifting seat 71 can only perform lifting and lowering movements relative to the support seat 41; a plurality of accommodating grooves 412 are provided on the upper surface of the support seat 41, and the accommodating grooves 412 correspond to the suction cups 73 one by one, and the suction cups 73 are located in the accommodating grooves 412, so that the suction cups 73 are stored; before the pressing plate 612 is pressed against the sheet metal, the lifting seat 71 will be in the lowest state, and the suction cups 73 will be spaced apart from the lower surface of the sheet metal.

[0055] like Fig. 9 and Fig.10 As shown, a top seat 15 is installed on the bracket 1, and an upwardly inclined rising surface 151 is provided on the top seat 15. When the pressing plate 612 presses the sheet metal part onto the supporting seat 41, the lifting seat 71 will move against the rising surface 151, and the lifting seat 71 will gradually rise and push the suction cup 73 to rise through the connecting pipe 72; since the sheet metal part has been pressed downward by the pressing plate 612, the suction cup 73 will be able to be sucked tightly onto the lower surface of the sheet metal part, so that the sheet metal part is adsorbed and fixed.

[0056] When the sheet metal is fixed by the suction cup 73, the mounting plate 611 will be separated from the first limit plate 111, the pressure plate 612 will be separated from the second limit plate 141, and the elastic telescopic rod 62 will return to its natural state and cause the pressure plate 612 to move away from the side of the sheet metal, so that the pressure plate 612 will not affect the spraying of the sheet metal by the spray robot body 3, and the suction cup 73 located under the sheet metal will not affect the spraying of the sheet metal by the spray robot body 3, and improves the stability of the sheet metal during the maintenance spraying process.

[0057] The control unit 5 also includes a contact sensor 53 mounted on the bracket 1, and the contact sensor 53 and the spray robot body 3 are both coupled to the controller 51. When the pressing plate 612 moves away from the sheet metal, the mounting seat 4 will move against the contact sensor 53, and the contact sensor 53 will send a spraying signal to the controller 51, and the controller 51 will control the spray robot body 3 to spray the sheet metal on the support seat 41 according to the set program.

[0058] like Figure 6 and Figure 8 As shown, the connecting tube 72 is connected to the interior of the suction cup 73, and the connecting tube 72 is provided with an air hole 721 extending in the horizontal direction, and an insertion rod 74 is slidably embedded in the air hole 721. The insertion rod 74 and the connecting tube 72 are connected to the same spring 75. When the spring 75 is in a natural state, the insertion rod 74 will be inserted into the air hole 721 and block the air hole 721, so that the suction cup 73 maintains a vacuum state when it is sucked tightly onto the sheet metal.

[0059] A magnetic plate 17 is installed on the bracket 1, and all the plug plates are connected to the same iron plate 76. After the spraying of the spray robot body 3 is completed, the mounting seat 4 will drive the iron plate 76 to move to the magnetic plate 17, and the magnetic plate 17 will adsorb and fix the iron plate 76, and the iron plate 76 will drive the plug rod 74 to move away from the air hole 721. At this time, the inside of the connecting tube 72 will be connected to the outside of the connecting tube 72 through the air hole 721, and the external air will enter the inside of the suction cup 73 through the air hole 721 and the connecting tube 72, so that the inside of the suction cup 73 is no longer in a vacuum state, so that the suction cup 73 can be separated from the sheet metal in the subsequent process.

[0060] like Fig. 9 and Fig.10 As shown, a pressing seat 16 is installed on the bracket 1, and the top seat 15 and the pressing seat 16 are arranged in sequence along the conveying direction of the chain conveyor 2. A downwardly inclined lower pressing surface 161 is provided on the pressing seat 16. When the interior of the suction cup 73 is no longer in a vacuum state, the mounting seat 4 will drive the lifting seat 71 to move against the lower pressing surface 161, and the lifting seat 71 will descend and drive the suction cup 73 to move downward and separate from the sheet metal part through the connecting pipe 72, so as to facilitate the unloading of the sheet metal part in the subsequent process.

[0061] like Figure 1 As shown, a guide plate 18 is installed on the bracket 1 in an inclined manner, and the high end of the guide plate 18 is located at the output end of the chain conveyor 2. A horizontally arranged collecting plate 181 is integrally formed at the low end of the guide plate 18. When the suction cup 73 is detached from the sheet metal, the mounting seat 4 will gradually move to the output end of the conveyor. At this time, the support seat 41 will be driven by the chain conveyor 2 to flip downward, and the sheet metal on the support seat 41 will automatically fall downward to the guide plate 18 due to its own gravity. The guide plate 18 will guide the sheet metal to the collecting plate 181, thereby realizing automatic unloading and collection of the sheet metal.

[0062] It is worth noting that, when the sheet metal part is detached from the support seat 41 , the sheet metal part will no longer be pressed against the pressure sensor 52 , and the pressure sensor 52 will send a stop signal to the controller 51 , and the controller 51 will control the chain conveyor 2 to shut down.

[0063] The implementation principle of the automobile repair and painting robot in the embodiment of the present application is: during the repair and spraying process of the sheet metal parts, the worker will place the sheet metal parts on the support seat 41 and press them against the pressure sensor 52. The pressure sensor 52 will send a start signal to the controller 51, and the controller 51 will control the chain conveyor 2 to transport the sheet metal parts.

[0064] During the conveying process of the sheet metal, the two mounting plates 611 will move and contact the corresponding first guide plates 11 respectively, so that the two mounting plates 611 slide close to each other, and the two pressing plates 612 will jointly clamp the sheet metal on the support seat 41, thereby adjusting the longitudinal position of the sheet metal; then the mounting plate 611 will be separated from the first guide plate 11 and continue to contact the first limit plate 111, and the front end of the sheet metal on the support seat 41 will contact the baffle plate 12, and the baffle plate 12 will block the sheet metal from moving forward, thereby adjusting the lateral position of the sheet metal; then the pushing surface 421 of the sliding seat 42 will move and contact the lifting rod 121, and the lifting rod 1 21 will drive the baffle 12 to rise above the sheet metal on the support seat 41, so that the baffle 12 no longer hinders the advancement of the sheet metal; then the two pressing plates 612 will move respectively to contact the corresponding second guide plate 14, so that the two pressing plates 612 will flip over and approach each other, and the two pressing plates 612 will jointly press the sheet metal on the support seat 41; then the lifting seat 71 will move to contact the rising surface 151, the lifting seat 71 will gradually rise and push the suction cup 73 to rise and suck on the lower surface of the sheet metal through the connecting pipe 72, so that the sheet metal is adsorbed and fixed; then the mounting plate 611 will be separated from the first limiting plate 111, and the pressing plate 612 will be separated from the second The limit plate 141 and the elastic telescopic rod 62 will return to the natural state and cause the pressure plate 612 to move away from the side of the sheet metal; then the mounting seat 4 will move to contact the contact sensor 53, and the contact sensor 53 will send a spraying signal to the controller 51, and the controller 51 will control the spraying robot body 3 to spray the sheet metal on the support seat 41 according to the set program; then the mounting seat 4 will drive the iron plate 76 to move to the magnetic plate 17, and the magnetic plate 17 will adsorb and fix the iron plate 76, and the iron plate 76 will drive the insertion rod 74 to move away from the air hole 721, and the external air will enter the inside of the suction cup 73 through the air hole 721 and the connecting pipe 72 , so that the inside of the suction cup 73 is no longer in a vacuum state; then the mounting seat 4 will drive the lifting seat 71 to move and contact the lower pressure surface 161, and the lifting seat 71 will descend and drive the suction cup 73 to move downward and separate from the sheet metal through the connecting pipe 72; finally, the mounting seat 4 will gradually move to the output end of the conveyor, and the support seat 41 will be driven by the chain conveyor 2 to turn downward, and the sheet metal on the support seat 41 will automatically fall downward onto the guide plate 18 due to its own gravity, and the guide plate 18 will guide the sheet metal to the collecting plate 181, and the pressure sensor 52 will send a stop signal to the controller 51, and the controller 51 will control the chain conveyor 2 to close.

[0065] To sum up, by placing the sheet metal parts in the front position on the support base 41, workers can achieve automatic adjustment of the horizontal and vertical positions of the sheet metal parts, automatic limit fixation of the sheet metal parts, automatic precise spraying of the sheet metal parts, and automatic unloading and collection of the sheet metal parts, thereby improving the maintenance and spraying efficiency of the sheet metal parts.

[0066] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. Automobile maintenance spraying robot, characterized by: The invention comprises a support (1), on which a chain conveyor (2), a spraying robot body (3) and a control unit (5) are arranged, a mounting seat (4) is arranged on the chain of the chain conveyor (2), and a supporting seat (41) and a clamping unit (6) are arranged on the mounting seat (4); The support seat (41) is used for placing sheet metal parts, and a suction unit (7) is provided on the support seat (41), the suction unit (7) comprises a lifting seat (71) slidably connected to the support seat (41) in a vertical direction, and a plurality of suction cups (73) are provided on the lifting seat (71); The clamping units (6) are provided in two groups and are respectively arranged on the left and right sides of the support seat (41). The clamping units (6) include a clamping plate assembly (61) connected to the mounting seat (4) via an elastic telescopic rod (62); The bracket (1) is provided with two first guide plates (11) for the corresponding clamping plate assemblies (61) to move against each other, a top seat (15) and a pressure seat (16) arranged in sequence along the conveying direction of the chain conveyor (2), the spacing between the two first guide plates (11) gradually decreases from the input end of the chain conveyor (2) to the output end of the chain conveyor (2), a first limit plate (111) is provided on one end of the first guide plate (11) facing the output end of the chain conveyor (2), and the first limit plate (111) extends along the length direction of the chain conveyor (2); the top seat (15) is provided with an upwardly inclined rising surface (151), and the pressure seat (16) is provided with a downwardly inclined lower pressure surface (161); The control unit (5) comprises a controller (51), a pressure sensor (52) arranged on a support seat (41) and a contact sensor (53) arranged on a bracket (1); the pressure sensor (52), the contact sensor (53), the chain conveyor (2) and the spray robot body (3) are all coupled to the controller (51); When the sheet metal part is placed on the support seat (41), the sheet metal part will be pressed against the pressure sensor (52), and the pressure sensor (52) will send a start signal to the controller (51), and the controller (51) will control the chain conveyor (2) to start, and the two groups of clamping plate assemblies (61) will respectively move against the corresponding first guide plates (11) and approach each other, so that the two groups of clamping plate assemblies (61) clamp the sheet metal part on the support seat (41) together; then the clamping plate assembly (61) will move against the first limit plate (111), and the lifting seat (71) will move against the lifting surface (151) and push the suction cup (73) to rise and suck on the sheet metal part; then the clamping plate assembly (61) ) will be separated from the first limit plate (111), the elastic telescopic rod (62) will return to its natural state and cause the clamping plate assembly (61) to move away from the sheet metal part; then the mounting seat (4) will contact the contact sensor (53), the contact sensor (53) will transmit a spraying signal to the controller (51), and the controller (51) will control the spraying robot body (3) to spray the sheet metal part on the support seat (41); then the lifting seat (71) will move to contact the lower pressure surface (161) and cause the suction cup (73) to move downward and separate from the sheet metal part, and the support seat (41) will flip downward after moving to the output end of the chain conveyor (2) and cause the sheet metal part to fall automatically.

2. The automobile repair spraying robot according to claim 1, characterized in that: It also includes a baffle (12), on which a lifting rod (121) is provided, and the lifting rod (121) is slidably matched with the bracket (1) in the vertical direction, and when the baffle (12) is in the lowest state, the lowest point of the baffle (12) will not be higher than the lowest point of the sheet metal part on the support seat (41); The mounting seat (4) is provided with a sliding seat (42), and the sliding seat (42) is provided with an upwardly inclined pushing surface (421). After the two sets of clamping plate assemblies (61) are clamped together on the sheet metal part and before the lifting seat (71) abuts against the lifting surface (151), the front end of the sheet metal part on the supporting seat (41) will abut against the baffle (12), and then the pushing surface (421) will move to abut against the lifting rod (121) and push the baffle (12) to rise to the top of the sheet metal part on the supporting seat (41).

3. The automobile repair spraying robot according to claim 2, characterized in that: The clamping plate assembly (61) comprises a mounting plate (611) connected to a mounting seat (4) via an elastic telescopic rod (62); a pressing plate (612) which can be turned on a vertical plane is rotatably connected to the mounting plate (611); the pressing plate (612) and the mounting plate (611) are connected to the same torsion spring (613); During the movement, the mounting seat (4) drives the mounting plate (611) to move against the first limit plate (111), so that the two pressing plates (612) are clamped together on the sheet metal part on the support seat (41); The bracket (1) is provided with two second guide plates (14) for the corresponding pressing plates (612) to move against each other, the spacing between the two second guide plates (14) gradually decreases from the input end of the chain conveyor (2) to the output end of the chain conveyor (2), and a second limit plate (141) is provided on one end of the second guide plate (14) facing the output end of the chain conveyor (2), and the second limit plate (141) extends along the length direction of the chain conveyor (2); After the baffle (12) rises to above the sheet metal part on the support seat (41), and before the lifting seat (71) contacts the rising surface (151), the two pressing plates (612) will move to contact the corresponding second guide plates (14) and approach each other, so that the pressing plate (612) presses the sheet metal part on the support seat (41) onto the support seat (41), and then the pressing plate (612) will move to contact the second limiting plate (141); when the mounting plate (611) is separated from the first limiting plate (111), the pressing plate (612) will be separated from the second limiting plate (141).

4. The automobile repair spraying robot according to claim 3, characterized in that: The suction cup (73) is connected to the lifting seat (71) through a connecting pipe (72). The connecting pipe (72) is connected to the inside of the suction cup (73). The connecting pipe (72) is provided with an air hole (721) extending in the horizontal direction. An insertion rod (74) is slidably embedded in the air hole (721). The insertion rod (74) and the connecting pipe (72) are connected to the same spring (75). When the spring (75) is in a natural state, the insertion rod (74) is inserted into the air hole (721) to block the air hole (721).

5. The automobile repair spraying robot according to claim 4, characterized in that: The bracket (1) is provided with a magnetic plate (17), and all the plug plates are connected to the same iron plate (76). After the spraying of the spray robot body (3) is completed and before the support seat (41) moves to the output end of the chain conveyor (2), the iron plate (76) will move to the magnetic plate (17), and the magnetic plate (17) will absorb and fix the iron plate (76) and prompt the plug rod (74) to move away from the air hole (721). At this time, the inside of the connecting pipe (72) will be connected to the outside of the connecting pipe (72) through the air hole (721).

6. The automobile repair spraying robot according to any one of claims 1 to 5, characterized in that: The support (1) is provided with an inclined material guide plate (18), the upper end of the material guide plate (18) is located at the output end of the chain conveyor (2) and is used to receive the sheet metal parts dropped from the support seat (41), and the lower end of the material guide plate (18) is provided with a horizontally arranged material collecting plate (181).

Images