An AGV conveying device for automobile assembly and loading

Abstract

The invention discloses an AGV conveying device for automobile assembly and loading, including an automobile assembly and loading AGV conveying device, including a vehicle body, a supporting mechanism fixedly installed at the bottom end of the vehicle body, a plurality of lifting mechanisms distributed in a rectangular shape fixedly installed at the top end of the vehicle body, and a plurality of buffer mechanisms distributed in an annular shape arranged inside the lifting mechanisms. The invention utilizes the deflection of the second rotating arm and the first rotating arm of the supporting mechanism so that the grinding wheels at both ends of the swing rod connected with the first rotating arm and the second rotating arm can contact the ground, so that the vehicle body can remain stable when the automobile parts are loaded, utilizes the rotation of the third screw of the lifting mechanism to cooperate with the mutual deflection of the first hinge seat and the second hinge seat, and the rotation of the rotating shaft, so that the lifting mechanism can adjust the angle according to the external shape of the external bracket of the automobile to provide stable support, utilizes the compression rod of the buffer mechanism to compress the second spring when moving, and stretches the first spring, so as to buffer the automobile parts on the sleeve.

Description

Technical Field

[0001] The invention relates to the technical field of AGV conveying, in particular to an AGV conveying device for automobile assembly and loading. Background Art

[0002] AGV is the abbreviation of automatic guided vehicle. AGV carts can operate automatically with the help of sensors, deliver empty pallets to the pallet warehouse, and transport pallets loaded with goods. Currently, AGV carts are mainly divided into two categories. One is an AGV cart modified by adding sensors to an electric forklift, which has the ability to pick up pallets autonomously. The other type of AGV cart has a regular appearance, does not have a fork support structure, and can only passively receive pallets. In the context of intelligent assembly, some advanced companies choose to use AGV carts to transport auto parts to save labor costs and improve work efficiency.

[0003] When using an AGV conveying device to transport automobile bracket accessories, due to the irregularity of the automobile's external brackets, stable support is required when lifting them. Although the existing lifting devices can adjust the height of each lifting plate individually, when lifting automobile external accessories, such as irregular accessories such as automobile doors, the accessories themselves have a certain angle, so that simply adjusting the height cannot stably lift them, and the accessories are prone to fall during the conveying process, thereby affecting the transportation of automobile accessories. In addition, when loading automobile accessories, it is necessary to ensure that the AGV body will not be displaced, which will affect the loading. For this reason, we propose an automobile assembly loading AGV conveying device. Summary of the invention

[0004] The object of the present invention is to provide an AGV conveying device for automobile assembly loading to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automobile assembly loading AGV conveying device, including an automobile assembly loading AGV conveying device, including a vehicle body, a supporting mechanism is fixedly installed at the bottom end of the vehicle body, the supporting mechanism includes two rectangular bars, and the two rectangular bars are fixedly installed at the bottom end of the vehicle body, two slide rails are fixedly installed between the two rectangular bars, and the two slide rails are fixedly installed at the bottom end of the vehicle body, a first screw is rotatably provided on the two rectangular bars, and the thread on the first screw is a bidirectional thread, a first motor is fixedly installed on one of the rectangular bars, and the output end of the first motor is connected to the first screw One end of the rod is fixedly connected, and two moving seats are threaded on the first screw rod, and sliding rods are fixedly installed on the sides of the moving seats close to the two slide rails, and the two sliding rods are respectively slidably arranged inside the two slide rails, and two supporting seats are fixedly installed on the bottom ends of the two rectangular bars, and a rotating rod is rotatably provided on the two supporting seats, and two first rotating arms are rotatably provided on the rotating rod, and a swing rod is rotatably provided on the other ends of the two first rotating arms, and a grinding wheel is fixedly installed on both ends of the swing rod, and two second rotating arms are rotatably provided on the swing rod, and the other ends of the two second rotating arms are respectively rotatably arranged on the two sliding rods of the moving seat above it.

[0006] Preferably, a plurality of lifting mechanisms distributed in a rectangular shape are fixedly installed on the top of the vehicle body, and the lifting mechanism includes a fixed cylinder, and end plates are fixedly installed on the top and bottom ends of the fixed cylinder, a connecting cylinder is fixedly installed at the center of the inside of the fixed cylinder, and the two ends of the connecting cylinder are respectively fixedly connected to the centers of the two end plates, and the outer ring of the connecting cylinder is rotatably provided with four external gear rings distributed up and down, and the two end plates are rotatably provided with a driving shaft, and a third motor is fixedly installed on the end plate located at the top, and the output end of the third motor is fixedly connected to the top end of the driving shaft, and a second screw is rotatably provided on the two end plates, and the end plate located at the top is fixed A second motor is installed, and the output end of the second motor is fixedly connected to the top end of the second screw, a moving block is threadedly provided on the second screw, and two support plates are fixedly installed on the side of the moving block close to the connecting cylinder, a rotating cylinder is rotatably provided on the two support plates, and the rotating cylinder is slidably sleeved on the outer ring of the driving shaft, the outer ring of the driving shaft is provided with a sliding groove, a sliding block is fixedly installed on the inner ring of the rotating cylinder, and the sliding block is slidably arranged inside the sliding groove, a first gear is fixedly installed on the outer ring of the rotating cylinder, and the first gear can mesh with four outer gear rings respectively, and three moving components distributed in an annular manner are fixedly installed on the two end plates, and the moving components include The invention comprises two fixed plates distributed up and down, and the two fixed plates are respectively fixedly mounted on the two end plates, two limiting cylinders are fixedly mounted on the two fixed plates, limiting rods are slidably arranged inside the limiting cylinders, a threaded sleeve is arranged between the two limiting cylinders, and the threaded sleeve is rotatably arranged at the center of the two fixed plates, a third screw is arranged on the inner thread of the threaded sleeve, and two second gears distributed up and down are fixedly mounted on the outer ring of the threaded sleeve, the second gears located at the bottom of the three threaded sleeves are meshed with the outer gear ring located at the bottom among the four outer gear rings, and the second gears located at the top of the three threaded sleeves are respectively meshed with the outer gear rings located at the top among the four outer gear rings The three outer gear rings on the square are meshed, and three deflection assemblies distributed in an annular manner are arranged above the end plate located above. The deflection assembly includes two rectangular blocks distributed up and down, and a rotating shaft is arranged inside the rectangular block for rotation. A first hinge seat is fixedly installed at both ends of the rotating shaft, and the first hinge seat is hingedly connected to the second hinge seat, and a swing arm is fixedly installed between the two second hinge seats located on the same side. The rectangular block located at a lower position is fixedly connected to the top of two limit rods of the moving assembly below it and the top of the third screw rod, and a base is fixedly installed on the top of the three rectangular blocks located at a higher position, and a sleeve is sleeved on the base.

[0007] Preferably, the lifting mechanism is provided with a plurality of buffer mechanisms distributed in an annular manner inside the lifting mechanism, and the buffer mechanism includes a bottom plate, and the bottom plate is fixedly mounted on the top of the base, and two moving plates are slidably provided on the upper end of the bottom plate, and the lower end of the moving plate is fixedly mounted with a first cylinder, and the first cylinder is fixedly mounted on the first cylinder, and two surrounding plates are fixedly mounted on the top of the bottom plate, and the second cylinder is fixedly mounted on the surrounding plate, and the moving plate is slidably sleeved on the outer ring of the second cylinder, and the two second cylinders are respectively fixedly connected to the other ends of the two first springs. A cylinder is fixedly mounted at the center of the bottom plate, and a second spring is slidably sleeved on the outer ring of the cylinder, and the bottom end of the second spring is fixedly connected to the top end of the bottom plate, a plug rod is slidably provided inside the cylinder, and the top end of the plug rod is fixedly connected to the top end of the sleeve, two pressure rods are fixedly mounted on the plug rod, and the top end of the second spring is fixedly connected to the bottom ends of the two pressure rods, and the two pressure rods can be slidably inserted into the cylinder, and sliding holes are opened on the two moving plates, and the two pressure rods are slidably set inside the two sliding holes.

[0008] Compared with the prior art, the present invention has the following beneficial effects:

[0009] 1. The present invention arranges a first screw, a first rotating arm and a second rotating arm of the supporting mechanism, so that the rotation of the first screw can drive the moving seat thereon to move, and the movement of the moving seat drives the second rotating arm to deflect, and then the deflection of the second rotating arm drives the first rotating arm to deflect, so that the swing arm connected with the first rotating arm and the second rotating arm deflects, so that the grinding wheels at both ends of the swing arm can contact the ground, so that the body of the automobile can remain stable when loading the automobile parts, and the body is prevented from moving due to external force;

[0010] 2. The present invention provides three third screws, a rotating shaft, a first hinge seat and a second hinge seat, so that when the third screw rotates, the first hinge seat and the second hinge seat can deflect each other, and the rotating shaft can rotate, so that the base connected to the rectangular block of the outer ring of the rotating shaft can deflect, so that the lifting mechanism can adjust the angle according to the external shape of the automobile external bracket, provide stable support, and prevent the automobile external bracket on the lifting mechanism from falling off during transportation;

[0011] 3. The present invention provides a first spring and a second spring so that the second spring can be compressed during the movement of the pressure rod, and the pressure rod is used to push the moving plate to move, thereby stretching the first spring, thereby buffering the automotive accessories on the sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0013] Figure 2 It is a schematic diagram of the supporting mechanism structure of the present invention;

[0014] Figure 3It is a schematic diagram of the cross-sectional structure of the lifting mechanism of the present invention;

[0015] Figure 4 It is a schematic diagram of the cross-sectional structure of the buffer mechanism of the present invention;

[0016] Figure 5 It is a schematic diagram of the cylinder and the plug structure of the present invention;

[0017] Figure 6 For the present invention Figure 3 A schematic diagram of the structure enlargement in the middle;

[0018] Figure 7 For the present invention Figure 3 A magnified schematic diagram of the structure at B in the middle;

[0019] Figure 8 For the present invention Figure 3 A magnified schematic diagram of the structure at C in the middle;

[0020] Fig. 9 For the present invention Figure 4 Enlarged schematic diagram of the structure at point D in the middle.

[0021] In the figure: 1-car body; 2-support mechanism; 201-rectangular bar; 202-slide rail; 203-first screw rod; 204-first motor; 205-moving seat; 206-slide rod; 207-support seat; 208-rotating rod; 209-first rotating arm; 210-swing rod; 211-grinding wheel; 212-second rotating arm; 3-lifting mechanism; 301-fixed cylinder; 302-end plate; 303-connecting cylinder; 304-external gear ring; 305-second screw rod; 306-second motor; 307-moving block; 308-support plate; 309-rotating cylinder; 310-first gear; 311- Driving shaft; 312-fixed plate; 313-limiting cylinder; 314-limiting rod; 315-threaded sleeve; 316-third screw; 317-second gear; 318-rectangular block; 319-rotating shaft; 320-first hinge seat; 321-second hinge seat; 322-swing arm; 323-base; 324-sleeve; 325-third motor; 4-buffer mechanism; 401-bottom plate; 402-enclosing plate; 403-moving plate; 404-first cylinder; 405-first spring; 406-second cylinder; 407-cylinder; 408-second spring; 409-insertion rod; 410-pressure rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-4 The present invention provides a technical solution: an automobile assembly loading AGV conveying device, including an automobile assembly loading AGV conveying device, including a vehicle body 1, a support mechanism 2 is fixedly installed at the bottom of the vehicle body 1, and the support mechanism 2 includes two rectangular bars 201, and the two rectangular bars 201 are fixedly installed at the bottom of the vehicle body 1, and two slide rails 202 are fixedly installed between the two rectangular bars 201, and the two slide rails 202 are fixedly installed at the bottom of the vehicle body 1, and the support mechanism 2 is connected to the vehicle body 1 by using the rectangular bars 201 and the slide rails 202. The first screw 203 is connected and fixed, and the first screw 203 is rotatably provided on the two rectangular bars 201, and the thread on the first screw 203 is a bidirectional thread. A first motor 204 is fixedly installed on one of the rectangular bars 201, and the output end of the first motor 204 is fixedly connected to one end of the first screw 203, so that the first motor 204 can drive the first screw 203 to rotate, and two moving seats 205 are threadedly provided on the first screw 203, so that the rotation of the first screw 203 can drive the two moving seats 205 to move toward each other, and the moving seats 205 are close to the two slides. The sides of the rails 202 are fixedly installed with slide bars 206, and the two slide bars 206 are slidably arranged inside the two slide rails 202 respectively. The slide bars 206 are used to slide inside the slide rails 202 to limit the movement of the moving seat 205. The bottom ends of the two rectangular bars 201 are fixedly installed with two support seats 207. The two support seats 207 are rotatably provided with rotation rods 208. The rotation rods 208 are rotatably provided with two first rotating arms 209. The other ends of the two first rotating arms 209 are rotatably provided with swing rods 210. The swing rods 210 are rotatably provided with the first rotating arms 209. 0, grinding wheels 211 are fixedly installed at both ends, and two second rotating arms 212 are rotatably provided on the swing rod 210, and the other ends of the two second rotating arms 212 are respectively rotatably arranged on the two sliding bars 206 of the moving seat 205 above them, so that the moving seat 205 moves to drive the sliding bar 206 to slide inside the slide rail 202, and the movement of the sliding bar 206 drives the second rotating arm 212 and the first rotating arm 209 to deflect, so that the swing rod 210 can deflect, and the grinding wheels 211 at both ends of the swing rod 210 are in contact with the ground, so as to stably support the vehicle body 1.

[0024] A plurality of rectangularly distributed lifting mechanisms 3 are fixedly installed at the top of the vehicle body 1, and the lifting mechanisms 3 include a fixed cylinder 301, and end plates 302 are fixedly installed at the top and bottom of the fixed cylinder 301. A connecting cylinder 303 is fixedly installed at the center of the fixed cylinder 301, and the two ends of the connecting cylinder 303 are respectively fixedly connected to the centers of the two end plates 302, and the outer ring of the connecting cylinder 303 is rotatably provided with four outer gear rings 304 distributed up and down, and the two end plates 302 are rotatably provided with a driving shaft 311, and a third motor 325 is fixedly installed on the upper end plate 302, and the output end of the third motor 325 is fixedly connected to the top of the driving shaft 311, so that the third motor 325 can drive the driving shaft 311 to rotate, and the two end plates A second screw 305 is rotatably provided on 302, and a second motor 306 is fixedly installed on the end plate 302 located above, and the output end of the second motor 306 is fixedly connected to the top of the second screw 305, so that the second motor 306 can drive the second screw 305 to rotate, and a moving block 307 is threadedly provided on the second screw 305, and two supporting plates 308 are fixedly installed on the side of the moving block 307 close to the connecting cylinder 303, and a rotating cylinder 309 is rotatably provided on the two supporting plates 308, and the rotating cylinder 309 is slidably sleeved on the outer ring of the driving shaft 311, so that the rotation of the second screw 305 can drive the rotating cylinder 309 to slide on the outer ring of the driving shaft 311, and the outer ring of the driving shaft 311 is provided with a sliding groove, and the inner ring of the rotating cylinder 309 is fixedly installed A slider is installed, and the slider is slidably arranged inside the slide groove, so that the rotation of the driving shaft 311 can drive the rotating cylinder 309 to rotate, and the outer ring of the rotating cylinder 309 is fixedly installed with a first gear 310, and the first gear 310 can respectively engage with the four outer gear rings 304, so that the rotation of the rotating cylinder 309 can drive any one of the four outer gear rings 304 to rotate, and three circularly distributed moving components are fixedly installed on the two end plates 302, and the moving components include two fixed plates 312 distributed up and down, and the two fixed plates 312 are respectively fixedly installed on the two end plates 302, and two limiting cylinders 313 are fixedly installed on the two fixed plates 312, and a limiting rod 314 is slidably provided inside the limiting cylinder 313, and the two A threaded sleeve 315 is provided between the limiting cylinders 313, and the threaded sleeve 315 is rotatably arranged at the center of the two fixed plates 312. The internal thread of the threaded sleeve 315 is provided with a third screw rod 316, so that the rotation of the threaded sleeve 315 can drive the third screw rod 316 to rise and fall. Two second gears 317 distributed up and down are fixedly installed on the outer ring of the threaded sleeve 315. The second gears 317 located at the bottom of the three threaded sleeves 315 are all meshed with the outer gear ring 304 located at the bottom among the four outer gear rings 304, so that the rotation of the outer gear ring 304 at the bottom can drive the three threaded sleeves 315 to rotate at the same time. The second gears 317 located at the top of the three threaded sleeves 315 are respectively meshed with the three outer gear rings 304 located at the top among the four outer gear rings 304.The three outer gear rings 304 located at the top rotate to drive the three threaded sleeves 315 to rotate.

[0025] Three deflection assemblies distributed in a ring are arranged above the end plate 302 located above, and the deflection assembly includes two rectangular blocks 318 distributed up and down, and a rotating shaft 319 is rotatably arranged inside the rectangular block 318, and first hinge seats 320 are fixedly installed at both ends of the rotating shaft 319, and the first hinge seat 320 is hingedly connected to the second hinge seat 321, and a swing arm 322 is fixedly installed between the two second hinge seats 321 located on the same side, so that the two rectangular blocks 318 can be adjusted at multiple angles, and the rectangular block 318 located at the lower position is fixedly connected to the top of the two limit rods 314 and the top of the third screw 316 of the moving assembly below it, so that the lifting and lowering of the third screw 316 can control the position of the rectangular block 318 located at the higher position of the two rectangular blocks 318, and a base 323 is fixedly installed on the top of the three rectangular blocks 318 located at the higher position, and a sleeve 324 is sleeved on the base 323, and the position of the base 323 and the sleeve 324 is adjusted by adjusting the position of the rectangular block 318.

[0026] The lifting mechanism 3 is provided with a plurality of buffer mechanisms 4 distributed in an annular manner inside, and the buffer mechanism 4 includes a bottom plate 401, and the bottom plate 401 is fixedly mounted on the top of the base 323, two movable plates 403 are slidably mounted on the upper end of the bottom plate 401, a first cylinder 404 is fixedly mounted on the lower end of the movable plate 403, a first spring 405 is fixedly mounted on the first cylinder 404, two enclosure plates 402 are fixedly mounted on the top of the bottom plate 401, a second cylinder 406 is fixedly mounted on the enclosure plate 402, and the movable plate 403 is slidably sleeved on the outer ring of the second cylinder 406, and the two second cylinders 406 are respectively fixedly connected to the other ends of the two first springs 405, so that the movable plate 403 can stretch the first spring 405 when moving, and a circular spring 406 is fixedly mounted at the center of the bottom plate 401 Cylinder 407, the outer ring sliding sleeve of the cylinder 407 is provided with a second spring 408, and the bottom end of the second spring 408 is fixedly connected to the top of the bottom plate 401, the cylinder 407 is slidably provided with an insertion rod 409, and the top end of the insertion rod 409 is fixedly connected to the top end of the sleeve 324, two pressure rods 410 are fixedly installed on the insertion rod 409, and the top end of the second spring 408 is fixedly connected to the bottom ends of the two pressure rods 410, the two pressure rods 410 can be slidably inserted into the cylinder 407, so that the movement of the insertion rod 409 can drive the pressure rod 410 to move and compress the second spring 408, and sliding holes are opened on the two movable plates 403, and the two pressure rods 410 are respectively slidably arranged in the two sliding holes, so that the downward movement of the pressure rod 410 can push the movable plate 403 to move and stretch the first spring 405.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An AGV conveying device for automobile assembly and loading, comprising a vehicle body (1), characterized in that: A support mechanism (2) is fixedly mounted on the bottom end of the vehicle body (1), a plurality of rectangularly distributed lifting mechanisms (3) are fixedly mounted on the top end of the vehicle body (1), and a plurality of circularly distributed buffer mechanisms (4) are arranged inside the lifting mechanisms (3); The lifting mechanism (3) comprises a fixed cylinder (301), the top and bottom of the fixed cylinder (301) are fixedly mounted with end plates (302), a connecting cylinder (303) is fixedly mounted at the center of the fixed cylinder (301), and the two ends of the connecting cylinder (303) are respectively fixedly connected to the centers of the two end plates (302), the outer ring of the connecting cylinder (303) is rotatably provided with four outer gear rings (304) distributed up and down, the two end plates (302) are rotatably provided with a driving shaft (311), a third motor (325) is fixedly mounted on the upper end plate (302), and the output end of the third motor (325) is fixedly connected to the top of the driving shaft (311); A second screw (305) is rotatably provided on the two end plates (302), a second motor (306) is fixedly installed on the upper end plate (302), and the output end of the second motor (306) is fixedly connected to the top of the second screw (305), a moving block (307) is threadedly provided on the second screw (305), and two support plates (308) are fixedly installed on the side of the moving block (307) close to the connecting cylinder (303), a rotating cylinder (309) is rotatably provided on the two support plates (308), and the rotating cylinder (309) is slidably sleeved on the outer ring of the driving shaft (311), and a sliding groove is provided on the outer ring of the driving shaft (311), and a sliding block is fixedly installed on the inner ring of the rotating cylinder (309), and the sliding block is slidably arranged inside the sliding groove, and a first gear (310) is fixedly installed on the outer ring of the rotating cylinder (309), and the first gear (310) can be respectively engaged with four outer gear rings (304); Three circularly distributed moving components are fixedly mounted on the two end plates (302), and the moving components include two fixed plates (312) distributed up and down, and the two fixed plates (312) are respectively fixedly mounted on the two end plates (302), and two limiting cylinders (313) are fixedly mounted on the two fixed plates (312), and limiting rods (314) are slidably arranged inside the limiting cylinders (313), and a threaded sleeve (315) is arranged between the two limiting cylinders (313), and the threaded sleeve (315) is rotatably arranged at the center of the two fixed plates (312), and a third screw rod (316) is arranged on the inner thread of the threaded sleeve (315), and two second gears (317) distributed up and down are fixedly mounted on the outer ring of the threaded sleeve (315); The second gears (317) located at the bottom of the three threaded sleeves (315) are all meshed with the outer gear ring (304) located at the bottom among the four outer gear rings (304), and the second gears (317) located at the top of the three threaded sleeves (315) are respectively meshed with the three outer gear rings (304) located at the top among the four outer gear rings (304); Three deflection assemblies are arranged in a ring above the end plate (302) located at the top, and the deflection assemblies include two rectangular blocks (318) distributed up and down, and a rotating shaft (319) is arranged inside the rectangular block (318) for rotation, and first hinge seats (320) are fixedly installed at both ends of the rotating shaft (319), and the first hinge seat (320) is hingedly connected to a second hinge seat (321), and a swing arm (322) is fixedly installed between two second hinge seats (321) located on the same side, and the rectangular block (318) located at the lower position is fixedly connected to the top of two limit rods (314) and the top of the third screw rod (316) of the moving assembly below it, and a base (323) is fixedly installed on the top of the three rectangular blocks (318) located at the higher position, and a sleeve (324) is sleeved on the top of the base (323).

2. The automobile assembly loading AGV conveying device according to claim 1 is characterized in that: The support mechanism (2) comprises two rectangular bars (201), and the two rectangular bars (201) are fixedly mounted on the bottom end of the vehicle body (1); two slide rails (202) are fixedly mounted between the two rectangular bars (201), and the two slide rails (202) are fixedly mounted on the bottom end of the vehicle body (1); a first screw rod (203) is rotatably mounted on the two rectangular bars (201), and the thread on the first screw rod (203) is a bidirectional thread; a first motor (204) is fixedly mounted on one of the rectangular bars (201), and the output end of the first motor (204) is fixedly connected to one end of the first screw rod (203); two moving seats (205) are threadedly mounted on the first screw rod (203); and slide rods (206) are fixedly mounted on the sides of the moving seats (205) close to the two slide rails (202), and the two slide rods (206) are respectively slidably mounted inside the two slide rails (202).

3. The automobile assembly loading AGV conveying device according to claim 2 is characterized in that: Two supporting seats (207) are fixedly installed at the bottom ends of the two rectangular bars (201), and a rotating rod (208) is rotatably provided on the two supporting seats (207). Two first rotating arms (209) are rotatably provided on the rotating rod (208), and a swing rod (210) is rotatably provided at the other ends of the two first rotating arms (209), and a grinding wheel (211) is fixedly installed at both ends of the swing rod (210), and two second rotating arms (212) are rotatably provided on the swing rod (210), and the other ends of the two second rotating arms (212) are rotatably provided on the two sliding rods (206) of the moving seat (205) above them.

4. The automobile assembly loading AGV conveying device according to claim 3 is characterized in that: The buffer mechanism (4) comprises a bottom plate (401), and the bottom plate (401) is fixedly mounted on the top of the base (323); two movable plates (403) are slidably mounted on the upper end of the bottom plate (401); a first cylinder (404) is fixedly mounted on the lower end of the movable plate (403); a first spring (405) is fixedly mounted on the first cylinder (404); two enclosure plates (402) are fixedly mounted on the top of the bottom plate (401); a second cylinder (406) is fixedly mounted on the enclosure plate (402); the movable plate (403) is slidably mounted on the outer ring of the second cylinder (406); and the two second cylinders (406) are respectively fixedly connected to the other ends of the two first springs (405).

5. The automobile assembly loading AGV conveying device according to claim 4 is characterized in that: A cylinder (407) is fixedly installed at the center of the bottom plate (401), and a second spring (408) is slidably sleeved on the outer ring of the cylinder (407), and the bottom end of the second spring (408) is fixedly connected to the top of the bottom plate (401). An insertion rod (409) is slidably provided inside the cylinder (407), and the top end of the insertion rod (409) is fixedly connected to the top end of the sleeve (324). Two pressure rods (410) are fixedly installed on the insertion rod (409), and the top end of the second spring (408) is fixedly connected to the bottom ends of the two pressure rods (410). The two pressure rods (410) can be slidably inserted into the inside of the cylinder (407), and sliding holes are opened on the two movable plates (403), and the two pressure rods (410) are slidably set inside the two sliding holes respectively.

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