AGV motor vehicle for automobile production and assembly

Abstract

The utility model discloses an automatic guided vehicle (AGV) motor vehicle for automobile production and assembly, which comprises a vehicle body, anti-collision strips arranged on the front side and the rear side of the vehicle body, two universal wheels arranged on the front side of the bottom of the vehicle body, and a steering wheel device arranged on the rear side of the bottom of the vehicle body. Wheels are rotationally arranged on the two sides of the connecting shaft respectively, a power assembly for driving the connecting shaft to rotate is arranged on one side of the wheel frame, a driving gear is rotationally arranged at the bottom of the vehicle body, and the wheel frame is connected with the driving gear through a connecting assembly in a matched mode. When the AGV motor vehicle is used, an RFID card is arranged on one side of a station on the ground, an RFID card reader reads position information of the RFID card to achieve fixed-point positioning movement, a magnetic strip is arranged on the rear side of the bottom of a vehicle body, a magnetic navigation line is arranged on the ground, and the AGV motor vehicle moves along the magnetic navigation line through the magnetic strip.

Description

Technical Field

[0001] The utility model relates to the technical field of AGV power vehicle equipment, in particular to an AGV power vehicle for automobile production and assembly. Background Art

[0002] AGV power vehicles are used in the field of automobile production and assembly. Since parts need to go through multiple processes for processing, for example, the frame needs to be installed with door frames, windshields, interior assemblies, etc., it is necessary to carry out continuous circulation at different production stations. In this process, the existing technology uses AGV power vehicles to carry the frames. The existing technology uses RFID cards to read the position of the station, and uses the RFID card reader on the vehicle to read the card position information to perform positioning and movement functions. The disadvantage of the existing AGV vehicle is that when turning in the AGV power vehicle, it needs to rely on a motor that drives the steering wheel separately to turn. In the case that two motors drive two power wheels respectively in the existing technology, adding a steering motor will increase the cost of the power vehicle. Utility Model Content

[0003] The technical problem to be solved by the present invention is to provide an AGV power vehicle for automobile production and assembly, which can solve the problems in the above-mentioned existing technology.

[0004] The present invention is realized through the following technical solutions: an AGV power vehicle for automobile production and assembly of the present invention comprises a body, the front and rear sides of the body are provided with anti-collision strips, the front side of the bottom of the body is provided with two universal wheels, the rear side of the bottom of the body is provided with a steering wheel device, characterized in that the steering wheel device comprises a wheel frame, a connecting shaft is provided in the wheel frame, wheels are provided on both sides of the connecting shaft for rotation, a power component for driving the connecting shaft to rotate is provided on one side of the wheel frame, a driving gear is provided for rotation at the bottom of the body, and the wheel frame and the driving gear are cooperatively connected through a connecting component.

[0005] According to a further technical solution, an RFID card reader is also provided at the bottom of the vehicle body.

[0006] According to a further technical solution, a mounting plate is provided on one side of the RFID card reader, and the mounting plate is mounted on the bottom of the vehicle body.

[0007] According to a further technical solution, a magnetic strip is provided on the rear side of the bottom of the vehicle body.

[0008] According to a further technical solution, a bracket is provided on one side of the magnetic strip, a baffle is provided on one side of the bracket, the baffle is fixedly mounted on the magnetic strip, and the bracket is inserted into the vehicle body and fixedly mounted on the vehicle body.

[0009] According to a further technical solution, two inner holes are provided at the bottom of the bracket.

[0010] A further technical solution is that the power assembly includes a driven sprocket arranged on one side of the wheel, the driven sprocket is dynamically connected to the wheel on its side, electric motors are provided on both sides of the wheel frame, a driving sprocket is dynamically connected to one side of the motor, and the driving sprocket is dynamically connected to the driven sprocket on its side through a transmission chain.

[0011] According to a further technical solution, the connecting assembly includes a connecting frame arranged at the bottom of the wheel frame, and the connecting frame is fixed to the wheel frame.

[0012] According to a further technical solution, a base is provided on the top of the wheel frame, a top seat is provided on the bottom of the connecting frame, and the top seat is hinged to the base.

[0013] According to a further technical solution, a mounting bracket is provided in the vehicle body, an encoder is provided in the mounting bracket, a driven gear is provided on one side of the encoder, and the driven gear is meshed with the driving gear.

[0014] The beneficial effects of the present invention are: 1. When the power vehicle is in use, an RFID card is provided on one side of the work station on the ground, and the RFID card reader reads the position information of the RFID card to realize fixed-point positioning movement. A magnetic strip is provided on the rear side of the bottom of the vehicle body, and a magnetic navigation line is provided on the ground. The magnetic strip is used to move the AGV power vehicle along the magnetic navigation line. In the specific setting, the power vehicle can be provided with multiple magnetic navigation lines and RFID cards arranged along a ring to realize the transfer function of multiple power vehicles at different work stations. When used in an automobile production line, a frame can be placed on the vehicle body, and then the power vehicle can be transported one by one between different work stations to facilitate personnel to perform different processes on the frame.

[0015] Second, the different rotation speeds of the wheels on both sides are used to generate a differential, so that the vehicle has a steering function, and the driven gear and encoder are used to read the rotation direction and speed information of the driving gear and the wheel carrier to facilitate the control of the steering angle and speed of the wheels. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] For ease of explanation, the present invention is described in detail with reference to the following specific embodiments and accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of an AGV power vehicle for automobile production and assembly according to the present utility model;

[0018] Figure 2 for Figure 1 Schematic diagram of the structure of the middle mounting plate and RFID card reader;

[0019] Figure 3 for Figure 2 Schematic diagram of the top view of the middle mounting plate and RFID card reader;

[0020] Figure 4 for Figure 1 Schematic diagram of the structure of the magnetic strip;

[0021] Figure 5 for Figure 4 Schematic diagram of the right side structure of the middle magnetic strip;

[0022] Figure 6 for Figure 1 Schematic diagram of the three-dimensional structure of the equipment;

[0023] Figure 7 for Figure 6 Schematic diagram at A in the middle;

[0024] Figure 8 for Figure 6 Schematic diagram of the structure on the other side of the equipment;

[0025] Figure 9 for Figure 8 Schematic diagram at point B in the middle;

[0026] Figure 10 for Figure 6 Schematic diagram of the cross-section structure of the equipment;

[0027] In the figure, anti-collision strip 11, vehicle body 12, universal wheel 13, magnetic strip 16, RFID card reader 18, mounting plate 19, bracket 21, baffle 22, inner hole 24, wheel frame 31, connecting shaft 32, driven sprocket 33, wheel 34, motor 35, driven gear 36, mounting frame 37, driving gear 38, driving sprocket 39, transmission chain 41, encoder 42, connecting frame 43, top seat 44, and base 45. DETAILED DESCRIPTION

[0028] like Figures 1-10 As shown, the utility model is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front and back directions mentioned below are the same as Figure 1The up, down, left, right, front and back directions of the projection relationship itself are consistent. The utility model is an AGV power vehicle for automobile production and assembly, including a body 12, the front and rear sides of the body 12 are provided with anti-collision strips 11, the front side of the bottom of the body 12 is provided with two universal wheels 13, the rear side of the bottom of the body 12 is provided with a steering wheel device, and the bottom of the body 12 is also provided with an RFID card reader 18. An RFID card is provided on one side of the work station on the ground. The RFID card reader 18 reads the position information of the RFID card to realize fixed-point positioning movement. A magnetic strip 16 is provided on the rear side of the bottom of the body 12, and a magnetic navigation line is provided on the ground. The magnetic strip 16 is used to move the AGV power vehicle along the magnetic navigation line.

[0029] Advantageously, a mounting plate 19 is provided on one side of the RFID card reader 18 , and the mounting plate 19 is mounted on the bottom of the vehicle body 12 . The mounting plate 19 is L-shaped, and one surface of the mounting plate 19 is mounted and fixed to the RFID card reader 18 , and the other surface of the mounting plate 19 is mounted and fixed to the vehicle body 12 .

[0030] Advantageously, a bracket 21 is provided on one side of the magnetic strip 16 , and the bracket 21 has a U-shaped structure. A baffle 22 is provided on one side of the bracket 21 , and the baffle 22 is fixedly mounted on the magnetic strip 16 . The protruding portion of the bracket 21 is inserted into the vehicle body 12 and fixedly mounted on the vehicle body 12 .

[0031] Advantageously, two inner holes 24 are provided at the bottom of the bracket 21 .

[0032] Advantageously, the steering wheel device includes a wheel frame 31, a connecting shaft 32 is provided inside the wheel frame 31, wheels 34 are provided on both sides of the connecting shaft 32 for rotation, a power component for driving the connecting shaft 32 to rotate is provided on one side of the wheel frame 31, a driving gear 38 is provided for rotation at the bottom of the vehicle body 12, and the wheel frame 31 and the driving gear 38 are connected through a connecting component.

[0033] Advantageously, the power assembly includes a driven sprocket 33 arranged on one side of the wheel 34, the driven sprocket 33 is power-connected to the wheel 34 on one side, electric motors 35 are provided on both sides of the wheel frame 31, a driving sprocket 39 is power-connected to one side of the motor 35, a transmission chain 41 is wrapped around the outer surface of the driving sprocket 39 and the driven sprocket 33 on one side, and the driving sprocket 39 is power-connected to the driven sprocket 33 on one side through the transmission chain 41.

[0034] Advantageously, the connecting assembly includes a connecting frame 43 disposed at the bottom of the wheel frame 31 , and the connecting frame 43 is fixed to the wheel frame 31 .

[0035] Advantageously, a base 45 is provided on the top of the wheel frame 31 , and a top seat 44 is provided on the bottom of the connecting frame 43 , and the top seat 44 is hinged to the base 45 .

[0036] Advantageously, a mounting frame 37 is provided in the vehicle body 12, an encoder 42 is provided in the mounting frame 37, a driven gear 36 is provided on one side of the encoder 42, and the driven gear 36 is meshed with the driving gear 38. After the wheel carrier 31 rotates around the driving gear 38, the driven gear 36 meshes and rolls on the outside of the driving gear 38, and the position of the wheel carrier 31 is read by the encoder 42 to realize its direction control function. At this time, the wheels 34 on both sides can be used for differential rotation to realize the steering function of the steering wheel device.

[0037] When the power vehicle is in use, an RFID card is set on one side of the work station on the ground. The RFID card reader 18 reads the location information of the RFID card to achieve fixed-point positioning movement. A magnetic strip 16 is set on the rear side of the bottom of the vehicle body 12, and a magnetic navigation line is set on the ground. The magnetic strip 16 is used to make the AGV power vehicle move along the magnetic navigation line.

[0038] After the motor 35 starts working, it drives the driving sprocket 39 to rotate, and drives the driven sprocket 33 and the wheel 34 to rotate through the transmission chain 41, so that the power vehicle can be driven to move.

[0039] When the speeds output by the two motors 35 are different, a speed difference is generated in the wheels 34. At this time, the wheels 34 rotate differentially and drive the power vehicle to turn and move; in this process, the connecting frame 43 and the driving gear 38 on one side of the wheel frame 31 rotate relative to the vehicle body 12. Since the driving gear 38 is engaged with the driven gear 36, a signal can be transmitted to the encoder 42. The encoder 42 reads the angle and direction of rotation of the driven gear 36, and can control the forward and reverse rotation of the motor 35 and the speed, so as to better control the power vehicle; when controlling, a controller needs to be set on the vehicle body 12, such as a single-chip microcomputer or a PLC controller.

[0040] The above is only a specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the present invention; therefore, the protection scope of the present invention should be based on the protection scope defined in the claims.

Claims

1. An AGV powered vehicle for automobile production and assembly, comprising a vehicle body (12), wherein the front and rear sides of the vehicle body (12) are provided with anti-collision strips (11), the bottom front side of the vehicle body (12) is provided with two universal wheels (13), and the bottom rear side of the vehicle body (12) is provided with a steering wheel device, characterized in that: The steering wheel device comprises a wheel frame (31), a connecting shaft (32) is provided in the wheel frame (31), wheels (34) are rotatably provided on both sides of the connecting shaft (32), a power assembly for driving the connecting shaft (32) to rotate is provided on one side of the wheel frame (31), a driving gear (38) is rotatably provided at the bottom of the vehicle body (12), and the wheel frame (31) and the driving gear (38) are connected through a connecting assembly.

2. The AGV power vehicle for automobile production and assembly according to claim 1, characterized in that: An RFID card reader (18) is also provided at the bottom of the vehicle body (12).

3. The AGV power vehicle for automobile production and assembly according to claim 2, characterized in that: A mounting plate (19) is provided on one side of the RFID card reader (18), and the mounting plate (19) is mounted on the bottom of the vehicle body (12).

4. The AGV power vehicle for automobile production and assembly according to claim 1, characterized in that: A magnetic strip (16) is provided on the rear side of the bottom of the vehicle body (12).

5. The AGV power vehicle for automobile production and assembly according to claim 4, characterized in that: A bracket (21) is provided on one side of the magnetic strip (16), a baffle (22) is provided on one side of the bracket (21), the baffle (22) is fixedly mounted on the magnetic strip (16), and the bracket (21) is inserted into the vehicle body (12) and fixedly mounted on the vehicle body (12).

6. The AGV power vehicle for automobile production and assembly according to claim 5, characterized in that: The bottom of the bracket (21) is provided with two inner holes (24).

7. The AGV power vehicle for automobile production and assembly according to claim 1, characterized in that: The power assembly comprises a driven sprocket (33) arranged on one side of the wheel (34), the driven sprocket (33) being power-connected to the wheel (34) on one side thereof, electric motors (35) being arranged on both sides of the wheel frame (31), a driving sprocket (39) being power-connected to one side of the electric motor (35), and the driving sprocket (39) being power-connected to the driven sprocket (33) on one side thereof via a transmission chain (41).

8. The AGV power vehicle for automobile production and assembly according to claim 1, characterized in that: The connecting assembly comprises a connecting frame (43) arranged at the bottom of the wheel frame (31), and the connecting frame (43) is fixed to the wheel frame (31).

9. The AGV power vehicle for automobile production and assembly according to claim 8, characterized in that: The top of the wheel frame (31) is provided with a base (45), the bottom of the connecting frame (43) is provided with a top seat (44), and the top seat (44) is hingedly connected to the base (45).

10. An AGV power vehicle for automobile production and assembly according to any one of claims 1 to 9, characterized in that: A mounting frame (37) is provided in the vehicle body (12), an encoder (42) is provided in the mounting frame (37), a driven gear (36) is provided on one side of the encoder (42), and the driven gear (36) is meshed with the driving gear (38).

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