Vehicle body transfer device for workshop

Abstract

The utility model discloses a vehicle body transfer device for a workshop, which comprises a first mounting frame, a first skid conveying assembly, a first supporting assembly, a first positioning driving structure, a first jacking structure, a transfer structure, a second mounting frame, a second skid conveying assembly, a second supporting assembly, a second positioning driving structure and a second jacking structure, the first mounting frame is arranged on one side of the transferring structure, the second mounting frame is arranged on the other side of the transferring structure, and the transferring structure operably transfers a vehicle body from the first supporting assembly to the second supporting assembly in the second direction. Through the application of the vehicle body transfer device for the workshop, the vehicle body is transported in the first direction through the first skid conveying assembly, the first positioning driving structure, the second skid conveying assembly and the second positioning driving structure, and the vehicle body is transported in the vertical direction through the first jacking structure and the second jacking structure; and transfer in the second direction is completed in cooperation with the transfer structure, so that the vehicle receiving requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of workshop production, in particular to a vehicle body transfer device for a workshop. Background Art

[0002] In the related technologies, some OEMs did not activate the stamping, welding and painting workshops in the first phase of planning due to reasons such as cost, resource sharing and market demand, and only activated the final assembly workshop for vehicle assembly. At this time, the body-in-white was transported from an external cooperative manufacturer and put online through ground positioning and mechanical transfer forks. Due to production capacity requirements, after the welding and painting workshop was activated, the body-in-white was put online through transfer. Under this mode, the original mechanical online mode using the transfer fork could not be connected with the elevator and could not meet the requirements for receiving the vehicle. Utility Model Content

[0003] In view of this, in order to solve the above problems, the purpose of the utility model is to provide a vehicle body transfer device for a workshop, comprising:

[0004] A first mounting frame, a first sled conveying assembly, a first supporting assembly, a first positioning drive structure, a first lifting structure, a transfer structure, a second mounting frame, a second sled conveying assembly, a second supporting assembly, a second positioning drive structure and a second lifting structure. The first sled conveying assembly is slidably mounted on the upper surface of the first mounting frame, and the lower end of the first supporting assembly is mounted on the upper surface of the first sled conveying assembly. The first positioning drive structure is arranged below one end of the first mounting frame. The first positioning drive structure is connected to the first sled conveying assembly. The first positioning drive structure is used to drive the first sled conveying assembly to move along the first direction. The first lifting structure is arranged on both sides of the first mounting frame. The first mounting frame is arranged on the On one side of the transfer structure, the second sled conveying assembly is slidably mounted on the upper surface of the second mounting frame, the lower end of the second support assembly is mounted on the upper surface of the second sled conveying assembly, the second positioning drive structure is arranged below one end of the second mounting frame, the second positioning drive structure is connected to the second sled conveying assembly, the second positioning drive structure is used to drive the second sled conveying assembly to move along the first direction, the second lifting structure is arranged on both sides of the second mounting frame, the second mounting frame is arranged on the other side of the transfer structure, the transfer structure can be operated to transfer a car body from the first support assembly to the second support assembly along the second direction, the first direction and the second direction are arranged perpendicular to each other in the horizontal plane.

[0005] In another preferred embodiment, the first sled conveying assembly includes: a first transmission motor, a plurality of first transmission shafts, a plurality of first transmission sleeves, a first transmission belt, a second transmission belt, a plurality of first rollers, two first sleds and two first connecting seats, the first transmission motor is installed on the first mounting frame, the two ends of the plurality of first transmission shafts are rotatably installed in the first mounting frame and distributed on both sides of the first transmission motor, the length directions of the plurality of first transmission shafts are all extended along the second direction, the output end of the first transmission motor is connected to the two first transmission shafts on both sides of the first transmission motor through the two first transmission belts, the plurality of first transmission sleeves are arranged at the two ends of the plurality of first transmission shafts, each adjacent two first transmission sleeves distributed along the first direction are connected by a second transmission belt respectively, the lower surfaces of the two first sleds are slidably installed on the plurality of first rollers, and the two first connecting seats are installed at the two ends of the two first sleds.

[0006] In another preferred embodiment, the first supporting assembly includes: two first cross bars and four first vertical bars, the two ends of the lower surfaces of the two first cross bars are installed on the upper ends of the two first slides, and the two ends of the upper surface of each first cross bar are respectively provided with two first vertical bars.

[0007] In another preferred embodiment, the first positioning drive structure includes: a first bracket, a first servo motor, a first ball screw, two first guide rails, a first sliding seat, a first mounting seat and a first floating positioning pin, the first bracket is arranged below one end of the first mounting bracket, the first servo motor is mounted on one end of the first bracket, the two first guide rails are mounted on both sides of the upper surface of the first bracket, the two ends of the first ball screw are rotatably mounted on the bracket, the output end of the first servo motor is connected to one end of the first ball screw, the first sliding seat is slidably mounted on the two first guide rails and is threadedly connected to the first ball screw, the first mounting seat is mounted on the upper end of the first sliding seat, the lower end of the first floating positioning pin is mounted on the upper surface of the first mounting seat, and the upper end of the first floating positioning pin is connected to the first connecting seat.

[0008] In another preferred embodiment, the first lifting structure includes: a first base, a first drive motor, two first drive chains, four first columns, two first couplings, two first drive sprockets, four first linear guides, four first drive gears, four first racks, four first support seats and four first brackets, the first base is arranged on the side of the first mounting frame away from the transfer structure, the first drive motor is installed on the first base, the four first columns are arranged together in a rectangular array, the four first columns are arranged on both sides of the first mounting frame in pairs, the four first linear guides are installed on a surface of the four first columns, and the four first support seats are slidably installed on Four first linear guides, four first racks are installed on one side of four first support seats, one end of four first brackets is installed on a surface of four first support seats, both ends of each first coupling are installed on two first columns, the length direction of the two first couplings is extended along the second direction, two first drive sprockets and four first drive gears are all sleeved on the outer walls of the two first couplings, wherein the first drive sprocket is close to the first drive motor, each of the first drive sprockets is connected to the output end of the first drive motor through a first drive chain, and the four first drive gears are meshed with the four first racks.

[0009] In another preferred embodiment, the transfer structure is a transfer machine.

[0010] In another preferred embodiment, the second sled conveying assembly includes: a second transmission motor, a plurality of second transmission shafts, a plurality of second transmission sleeves, a third transmission belt, a plurality of fourth transmission belts, a plurality of second rollers, two second sleds and two second connecting seats, the second transmission motor is mounted on the second mounting frame, the two ends of the plurality of second transmission shafts are rotatably mounted in the second mounting frame and distributed on both sides of the second transmission motor, the length directions of the plurality of second transmission shafts are all extended along the second direction, the output end of the second transmission motor is connected to the two second transmission shafts on both sides of the second transmission motor through the two third transmission belts, the plurality of second transmission sleeves are arranged at the two ends of the plurality of second transmission shafts, each adjacent two second transmission sleeves distributed along the first direction are connected respectively by a corresponding fourth transmission belt, the lower surfaces of the two second sleds are slidably mounted on the plurality of second rollers, and the two second connecting seats are installed at the two ends of the two second sleds.

[0011] In another preferred embodiment, the second supporting assembly includes: two second cross bars and four second vertical bars, the two ends of the lower surface of the two second cross bars are installed on the upper ends of the two second slides, and the two ends of the upper surface of each second cross bar are respectively provided with two second vertical bars.

[0012] In another preferred embodiment, the second positioning drive structure includes: a second bracket, a second servo motor, a second ball screw, two second guide rails, a second sliding seat, a second mounting seat and a second floating positioning pin. The second bracket is arranged below the two ends of the second mounting bracket, the second servo motor is mounted on one end of the second bracket, the two second guide rails are mounted on both sides of the upper surface of the first bracket, the two ends of the second ball screw are rotatably mounted on the two brackets, the output end of the second servo motor is connected to one end of the second ball screw, the second sliding seat is slidably mounted on the two second guide rails and is threadedly connected to the second ball screw, the second mounting seat is mounted on the upper end of the second sliding seat, the lower end of the second floating positioning pin is mounted on the upper surface of the second mounting seat, and the upper end of the second floating positioning pin is connected to a second connecting seat.

[0013] In another preferred embodiment, the second lifting structure includes: a second base, a second drive motor, two second drive chains, four second columns, two second couplings, two second drive sprockets, four second linear guides, four second drive gears, four second racks, four second support seats and four second brackets, the second base is arranged on the side of the second mounting frame away from the transfer structure, the second drive motor is installed on the first base, the four second columns are arranged together in a rectangular array, the four second columns are arranged on both sides of the second mounting frame in pairs, the four second linear guides are installed on one surface of the four second columns, and the four second support seats are slidably installed on Four second linear guides, four second racks are installed on one side of four second support seats, one end of four second brackets is installed on a surface of four second support seats, both ends of each second coupling are installed on two second columns, the length direction of the two second couplings is extended along the second direction, two second drive sprockets and four second drive gears are all sleeved on the outer walls of the two second couplings, wherein the second drive sprocket is close to the second drive motor, each second drive sprocket is connected to the output end of the second drive motor through a second drive chain, and the four second drive gears are meshed with the four second racks.

[0014] Due to the adoption of the above technical solution, the utility model has the following positive effects compared with the prior art: through the application of the utility model, a vehicle body transfer device for a workshop is provided, which completes the transportation of the vehicle body in the first direction through the first skid conveying assembly and the first positioning drive structure and the second skid conveying assembly and the second positioning drive structure, completes the transportation in the vertical direction through the first jacking structure and the second jacking structure, and completes the transfer in the second direction in cooperation with the transfer structure, thereby meeting the vehicle receiving needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall schematic diagram of a vehicle body transfer device for a workshop of the utility model;

[0016] Figure 2 It is an overall top view of a vehicle body transfer device for a workshop of the utility model;

[0017] Figure 3 It is a first partial schematic diagram of a vehicle body transfer device for a workshop of the utility model;

[0018] Figure 4 This is a front view of a first jacking structure of a vehicle body transfer device for a workshop of the utility model;

[0019] Figure 5 It is a top view of a first lifting structure of a vehicle body transfer device for a workshop of the utility model;

[0020] Figure 6 It is a cross-sectional view of a first positioning drive structure of a vehicle body transfer device for a workshop according to the utility model.

[0021] In the attached drawings: 1. first mounting frame; 2. first sled conveying assembly; 3. first supporting assembly; 4. first positioning drive structure; 5. first lifting structure; 6. transfer structure; 7. second mounting frame; 8. second sled conveying assembly; 9. second supporting assembly; 10. second positioning drive structure; 11. second lifting structure; 12. first sled; 13. first connecting seat; 14. first bracket; 15. first servo motor; 16. first ball screw; 17. first guide rail; 18. first sliding seat; 19. first mounting seat; 20. first floating positioning pin ; 21. first base; 22. first drive motor; 23. first drive chain; 24. first column; 25. first coupling; 26. first drive sprocket; 27. first linear guide; 28. first drive gear; 29. ​​first rack; 30. first support seat; 31. first bracket; 37. second connecting seat; 38. second bracket; 39. second slide; 40. second floating locating pin; 41. second base; 42. second drive motor; 43. second column; 44. second coupling; 45. second bracket; 46. second servo motor. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0023] like Figures 1 to 6 As shown, a preferred embodiment of a vehicle body transfer device for a workshop is shown, comprising:

[0024] A first mounting frame 1, a first sled conveying assembly 2, a first supporting assembly 3, a first positioning driving structure 4, a first lifting structure 5, a transfer structure 6, a second mounting frame 7, a second sled conveying assembly 8, a second supporting assembly 9, a second positioning driving structure 10 and a second lifting structure 11. The first sled conveying assembly 2 is slidably mounted on the upper surface of the first mounting frame 1, and the lower end of the first supporting assembly 3 is mounted on the upper surface of the first sled conveying assembly 2. The first positioning driving structure 4 is arranged below one end of the first mounting frame 1. The first positioning driving structure 4 is connected to the first sled conveying assembly 2. The first positioning driving structure 4 is used to drive the first sled conveying assembly 2 to move along the first direction. The first lifting structure 5 is arranged on both sides of the first mounting frame 1. The mounting frame 1 is arranged on one side of the transfer structure 6, the second sled conveying assembly 8 is slidably installed on the upper surface of the second mounting frame 7, the lower end of the second support assembly 9 is installed on the upper surface of the second sled conveying assembly 8, the second positioning drive structure 10 is arranged below one end of the second mounting frame 7, the second positioning drive structure 10 is connected to the second sled conveying assembly 8, the second positioning drive structure 10 is used to drive the second sled conveying assembly 8 to move along the first direction, the second jacking structure 11 is arranged on both sides of the second mounting frame 7, the second mounting frame 7 is arranged on the other side of the transfer structure 6, the transfer structure 6 can be operated to transfer a car body from the first support assembly 3 to the second support assembly 9 along the second direction, and the first direction and the second direction are arranged perpendicular to each other in the horizontal plane.

[0025] During actual use, a car body is placed on the first support assembly 3 of the first skid conveying assembly 2, and then the first positioning drive structure 4 drives the first skid conveying assembly 2 to move in the first direction and stop at the required position, and then the first lifting structure 5 drives the car body to move in the vertical direction to a certain height, at this time the transfer structure 6 moves in the second direction to the bottom of the car body, the first lifting structure 5 drives the car body to descend and places the car body on the transfer structure 6, the transfer structure 6 then moves in the second direction to above the second lifting structure 11, the second lifting structure 11 drives the car body to move in the vertical direction, the transfer structure 6 returns to the initial position, and the second lifting structure 11 drives the car body to move in the vertical direction to the second support assembly 9 of the second skid conveying assembly 8, at this time the second positioning drive structure 10 drives the second skid conveying assembly 8 to move in the first direction, and finally completes the transportation of the car body.

[0026] Further, as a preferred embodiment, the first sled conveying assembly 2 includes: a first transmission motor, a plurality of first transmission shafts, a plurality of first transmission sleeves, a first transmission belt, a plurality of second transmission belts, a plurality of first rollers, two first sleds 12 and two first connecting seats 13, the first transmission motor is installed on the first mounting frame 1, the two ends of the plurality of first transmission shafts are rotatably installed in the first mounting frame 1 and are distributed on both sides of the first transmission motor, the length directions of the plurality of first transmission shafts are all extended along the second direction, the output end of the first transmission motor is connected to the two first transmission shafts on both sides of the first transmission motor through two first transmission belts, the plurality of first transmission sleeves are arranged at the two ends of the plurality of first transmission shafts, the plurality of first transmission sleeves are arranged on the outer wall of the first transmission shaft, each adjacent two first transmission sleeves distributed along the first direction are connected by a second transmission belt respectively, the lower surfaces of the two first sleds 12 are slidably installed on the plurality of first rollers, and the two first connecting seats 13 are installed at the two ends of the two first sleds 12. Furthermore, in actual use, the first transmission motor, the first transmission shafts, the first transmission sleeves, the first transmission belt and the second transmission belt cooperate to drive the first rollers to rotate, thereby facilitating the movement of the two first slides 12 on the first rollers.

[0027] Further, as a preferred embodiment, the first support assembly 3 includes: two first cross bars and four first vertical bars, the two ends of the lower surface of the two first cross bars are installed on the upper ends of the two first skids 12, and the two ends of the upper surface of each first cross bar are respectively provided with two first vertical bars. Further, in actual use, the vehicle body is supported by the four first vertical bars, so that the transfer structure 6 can be extended under the vehicle body. Furthermore, the upper ends of the four first vertical bars are installed with support plates, so that the support of the vehicle body is more stable.

[0028] Further, as a preferred embodiment, the first positioning drive structure 4 includes: a first bracket 14, a first servo motor 15, a first ball screw 16, two first guide rails 17, a first sliding seat 18, a first mounting seat 19 and a first floating positioning pin 20. The first bracket 14 is arranged below one end of the first mounting frame 1, the first servo motor 15 is mounted on one end of the first bracket 14, the two first guide rails 17 are mounted on both sides of the upper surface of the first bracket 14, the two ends of the first ball screw 16 are rotatably mounted on a bracket, the output end of the first servo motor 15 is connected to one end of the first ball screw 16, the first sliding seat 18 is slidably mounted on the two first guide rails 17 and is threadedly connected to the first ball screw 16, the first mounting seat 19 is mounted on the upper end of the first sliding seat 18, the lower end of the first floating positioning pin 20 is mounted on the upper surface of the first mounting seat 19, and the upper end of the first floating positioning pin 20 is connected to a first connecting seat 13. Furthermore, in actual use, a first pin hole is provided on the lower surface of the first connecting seat 13, and the upper end of the first floating positioning pin 20 extends into the first pin hole, and the first servo motor 15, the first ball screw 16 and the first sliding seat 18 cooperate to drive the first mounting seat 19 to move in the first direction, and the two first guide rails 17 guide the first mounting seat 19, and then drive the first floating positioning pin 20 to move in the first direction through the first mounting seat 19. At this time, the first floating positioning pin 20 moves upward in the vertical direction and extends into the first pin hole, thereby completing the positioning of the two first slides 12. Furthermore, the first floating positioning pin 20 is a conventional technical means in this field and will not be described in detail here.

[0029] Further, as a preferred embodiment, the first lifting structure 5 includes: a first base 21, a first drive motor 22, two first drive chains 23, four first columns 24, two first couplings 25, two first drive sprockets 26, four first linear guides 27, four first drive gears 28, four first racks 29, four first support seats 30 and four first brackets 31, the first base 21 is arranged on the side of the first mounting frame 1 away from the transfer structure 6, the first drive motor 22 is installed on the first base 21, the four first columns 24 are arranged together in a rectangular array, the four first columns 24 are arranged in pairs on both sides of the first mounting frame 1, the four first linear guides 27 are installed on one surface of the four first columns 24, and the four The first support seat 30 is slidably mounted on the four first linear guide rails 27, the four first racks 29 are mounted on one side of the four first support seats 30, one end of the four first brackets 31 is mounted on a surface of the four first support seats 30, both ends of each first coupling 25 are mounted on the two first columns 24, the length direction of the two first couplings 25 is extended along the second direction, the two first drive sprockets 26 and the four first drive gears 28 are all sleeved on the outer walls of the two first couplings 25, wherein the first drive sprocket 26 is close to the first drive motor 22, each first drive sprocket 26 is connected to the output end of the first drive motor 22 through a first drive chain 23, and the four first drive gears 28 are meshed with the four first racks 29. Furthermore, in actual use, the first drive motor 22 rotates in the clockwise direction and drives the two first drive chains 23 to rotate, and then drives the two first couplings 25 to rotate through the two first drive chains 23. When the two first couplings 25 rotate, the first drive gear 28 sleeved on the two first couplings 25 also rotates, and each first drive gear 28 is meshed with a corresponding first rack 29. The first rack 29 is installed on the first support seat 30, and the first support seat 30 is slidably installed on the first linear guide 27, so that the first support seat 30 is driven to move on the first linear guide 27 through the cooperation of the first drive gear 28 and the first rack 29, and finally completes the movement of the first support block 31 in the vertical direction to drive the vehicle body to rise. When the first drive motor 22 rotates in the counterclockwise direction, it drives the vehicle body to descend.

[0030] Further, as a preferred embodiment, the transfer structure 6 is a transfer machine. Further, in actual use, the transfer machine 33 is a conventional technical means in the art, and will not be described in detail here.

[0031] Further, as a preferred embodiment, the second sled conveying assembly 8 includes: a second transmission motor, a plurality of second transmission shafts, a plurality of second transmission sleeves, a third transmission belt, a plurality of fourth transmission belts, a plurality of second rollers, two second sleds 39 and two second connecting seats 37, the second transmission motor is mounted on the second mounting frame 7, the two ends of the plurality of second transmission shafts are rotatably mounted in the second mounting frame 7 and are distributed on both sides of the second transmission motor, the length directions of the plurality of second transmission shafts are all extended along the second direction, the output end of the second transmission motor is connected to the two second transmission shafts on both sides of the second transmission motor through two third transmission belts, the plurality of second transmission sleeves are arranged at both ends of the plurality of second transmission shafts, each adjacent two second transmission sleeves distributed along the first direction are connected by a fourth transmission belt respectively, the lower surfaces of the two second sleds 39 are slidably mounted on the plurality of second rollers, and the two second connecting seats 37 are installed at both ends of the two second sleds 39.

[0032] Further, as a preferred embodiment, the second support assembly 9 includes: two second cross bars and four second vertical bars, the two ends of the lower surface of the two second cross bars are installed on the upper ends of the two second slides 39, and two second vertical bars are respectively provided at the two ends of the upper surface of each second cross bar.

[0033] Further, as a preferred embodiment, the second positioning drive structure 10 includes: a second bracket 45, a second servo motor 46, a second ball screw, two second guide rails, a second sliding seat, a second mounting seat and a second floating positioning pin 40. The second bracket 45 is arranged below the two ends of the second mounting frame 7, the second servo motor 46 is installed at one end of the second bracket 45, the two second guide rails are installed on both sides of the upper surface of the first bracket 14, the two ends of the second ball screw are rotatably installed on the two brackets, the output end of the second servo motor 46 is connected to one end of the second ball screw, the second sliding seat is slidably installed on the two second guide rails and is threadedly connected to the second ball screw, the second mounting seat is installed at the upper end of the second sliding seat, the lower end of the second floating positioning pin 40 is installed on the upper surface of the second mounting seat, and the upper end of the second floating positioning pin 40 is connected to a second connecting seat 37.

[0034] Further, as a preferred embodiment, the second lifting structure 11 includes: a second base 41, a second drive motor 42, two second drive chains, four second columns 43, two second couplings 44, two second drive sprockets, four second linear guides, four second drive gears, four second racks, four second support seats and four second brackets 38, the second base 41 is arranged on the side of the second mounting frame 7 away from the transfer structure 6, the second drive motor 42 is installed on the first base 21, the four second columns 43 are arranged together in a rectangular array, the four second columns 43 are arranged in pairs on both sides of the second mounting frame 7, and the four second linear guides are installed on the four second columns 4 3, four second support seats are slidably mounted on four second linear guides, four second racks are mounted on one side of the four second support seats, one end of the four second brackets 38 is mounted on one surface of the four second support seats, both ends of each second coupling 44 are mounted on two second columns 43, the length direction of the two second couplings 44 is extended along the second direction, the two second drive sprockets and the four second drive gears are all sleeved on the outer walls of the two second couplings 44, wherein the second drive sprocket is close to the second drive motor, each second drive sprocket is connected to the output end of the second drive motor through a second drive chain, and the four second drive gears are meshed with the four second racks.

[0035] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle body transfer device for a workshop, characterized in that: include: A first mounting frame, a first sled conveying assembly, a first supporting assembly, a first positioning drive structure, a first lifting structure, a transfer structure, a second mounting frame, a second sled conveying assembly, a second supporting assembly, a second positioning drive structure and a second lifting structure. The first sled conveying assembly is slidably mounted on the upper surface of the first mounting frame, and the lower end of the first supporting assembly is mounted on the upper surface of the first sled conveying assembly. The first positioning drive structure is arranged below one end of the first mounting frame. The first positioning drive structure is connected to the first sled conveying assembly. The first positioning drive structure is used to drive the first sled conveying assembly to move along the first direction. The first lifting structure is arranged on both sides of the first mounting frame. The first mounting frame is arranged on the On one side of the transfer structure, the second sled conveying assembly is slidably mounted on the upper surface of the second mounting frame, the lower end of the second support assembly is mounted on the upper surface of the second sled conveying assembly, the second positioning drive structure is arranged below one end of the second mounting frame, the second positioning drive structure is connected to the second sled conveying assembly, the second positioning drive structure is used to drive the second sled conveying assembly to move along the first direction, the second lifting structure is arranged on both sides of the second mounting frame, the second mounting frame is arranged on the other side of the transfer structure, the transfer structure can be operated to transfer a car body from the first support assembly to the second support assembly along the second direction, the first direction and the second direction are arranged perpendicular to each other in the horizontal plane.

2. The vehicle body transfer device for a workshop according to claim 1, characterized in that: The first sled conveying assembly includes: a first transmission motor, a plurality of first transmission shafts, a plurality of first transmission sleeves, a first transmission belt, a plurality of second transmission belts, a plurality of first rollers, two first sleds and two first connecting seats, the first transmission motor is installed on the first mounting frame, the two ends of the plurality of first transmission shafts are rotatably installed in the first mounting frame and distributed on both sides of the first transmission motor, the length directions of the plurality of first transmission shafts are all extended along the second direction, the output end of the first transmission motor is connected to the two first transmission shafts on both sides of the first transmission motor through the two first transmission belts, the plurality of first transmission sleeves are arranged at the two ends of the plurality of first transmission shafts, each adjacent two first transmission sleeves distributed along the first direction are connected by a second transmission belt respectively, the lower surfaces of the two first sleds are slidably installed on the plurality of first rollers, and the two first connecting seats are installed at the two ends of the two first sleds.

3. The vehicle body transfer device for a workshop according to claim 2, characterized in that: The first supporting assembly includes: two first cross bars and four first vertical bars, the two ends of the lower surface of the two first cross bars are installed on the upper ends of the two first sliding skids, and the two ends of the upper surface of each first cross bar are respectively provided with two first vertical bars.

4. The vehicle body transfer device for a workshop according to claim 2, characterized in that: The first positioning drive structure includes: a first bracket, a first servo motor, a first ball screw, two first guide rails, a first sliding seat, a first mounting seat and a first floating positioning pin. The first bracket is arranged below one end of the first mounting bracket, the first servo motor is mounted on one end of the first bracket, the two first guide rails are mounted on both sides of the upper surface of the first bracket, the two ends of the first ball screw are rotatably mounted on the bracket, the output end of the first servo motor is connected to one end of the first ball screw, the first sliding seat is slidably mounted on the two first guide rails and is threadedly connected to the first ball screw, the first mounting seat is mounted on the upper end of the first sliding seat, the lower end of the first floating positioning pin is mounted on the upper surface of the first mounting seat, and the upper end of the first floating positioning pin is connected to the first connecting seat.

5. The vehicle body transfer device for a workshop according to claim 1, characterized in that: The first lifting structure includes: a first base, a first drive motor, two first drive chains, four first columns, two first couplings, two first drive sprockets, four first linear guides, four first drive gears, four first racks, four first support seats and four first brackets. The first base is arranged on a side of the first mounting frame away from the transfer structure, the first drive motor is installed on the first base, the four first columns are arranged in a rectangular array, the four first columns are arranged on both sides of the first mounting frame in pairs, the four first linear guides are installed on a surface of the four first columns, and the four first support seats are slidably installed on the four first straight Linear guide rail, four first racks are installed on one side of four first support seats, one end of four first brackets is installed on a surface of four first support seats, two ends of each first coupling are installed on two first columns, the length direction of the two first couplings is extended along the second direction, two first drive sprockets and four first drive gears are all sleeved on the outer walls of the two first couplings, wherein the first drive sprocket is close to the first drive motor, each first drive sprocket is connected to the output end of the first drive motor through a first drive chain, and the four first drive gears are meshed with the four first racks.

6. The vehicle body transfer device for a workshop according to claim 1, characterized in that: The transfer structure is a transfer machine.

7. The vehicle body transfer device for a workshop according to claim 4, characterized in that: The second sled conveying assembly includes: a second transmission motor, a plurality of second transmission shafts, a plurality of second transmission sleeves, a third transmission belt, a plurality of fourth transmission belts, a plurality of second rollers, two second sleds and two second connecting seats, the second transmission motor is installed on the second mounting frame, the two ends of the plurality of second transmission shafts are rotatably installed in the second mounting frame and distributed on both sides of the second transmission motor, the length directions of the plurality of second transmission shafts are all extended along the second direction, the output end of the second transmission motor is connected to the two second transmission shafts on both sides of the second transmission motor through the two third transmission belts, the plurality of second transmission sleeves are arranged at the two ends of the plurality of second transmission shafts, each adjacent two second transmission sleeves distributed along the first direction are connected by a fourth transmission belt respectively, the lower surfaces of the two second sleds are slidably installed on the plurality of second rollers, and the two second connecting seats are installed at the two ends of the two second sleds.

8. The vehicle body transfer device for a workshop according to claim 7, characterized in that: The second supporting assembly includes two second cross bars and four second vertical bars. The two ends of the lower surface of the two second cross bars are installed on the upper ends of the two second sliding sleds. The two ends of the upper surface of each second cross bar are respectively provided with two second vertical bars.

9. The vehicle body transfer device for a workshop according to claim 7, characterized in that: The second positioning drive structure includes: a second bracket, a second servo motor, a second ball screw, two second guide rails, a second sliding seat, a second mounting seat and a second floating positioning pin. The second bracket is arranged below the two ends of the second mounting bracket, the second servo motor is mounted on one end of the second bracket, the two second guide rails are mounted on both sides of the upper surface of the first bracket, the two ends of the second ball screw are rotatably mounted on the two brackets, the output end of the second servo motor is connected to one end of the second ball screw, the second sliding seat is slidably mounted on the two second guide rails and is threadedly connected to the second ball screw, the second mounting seat is mounted on the upper end of the second sliding seat, the lower end of the second floating positioning pin is mounted on the upper surface of the second mounting seat, and the upper end of the second floating positioning pin is connected to a second connecting seat.

10. The vehicle body transfer device for a workshop according to claim 5, characterized in that: The second lifting structure includes: a second base, a second drive motor, two second drive chains, four second columns, two second couplings, two second drive sprockets, four second linear guides, four second drive gears, four second racks, four second support seats and four second brackets. The second base is arranged on the side of the second mounting frame away from the transfer structure, the second drive motor is installed on the first base, the four second columns are arranged in a rectangular array, the four second columns are arranged on both sides of the second mounting frame in pairs, the four second linear guides are installed on one surface of the four second columns, and the four second support seats are slidably installed on the four second linear guides. Linear guide rail, four second racks are installed on one side of four second support seats, one end of four second brackets is installed on a surface of four second support seats, both ends of each second coupling are installed on two second columns, the length direction of the two second couplings is extended along the second direction, two second drive sprockets and four second drive gears are all sleeved on the outer walls of the two second couplings, wherein the second drive sprocket is close to the second drive motor, each second drive sprocket is connected to the output end of the second drive motor through a second drive chain, and the four second drive gears are meshed with the four second racks.

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