A materials handling vehicle positioning system

Abstract

The present application relates to the technical field of material conveying vehicles, and provides a material vehicle positioning system, comprising a frame body, a vehicle body for carrying workpieces, wheels arranged at the bottom of the vehicle body, a support plate arranged in suspension on the vehicle body, a bottom plate arranged on the frame body and allowing the wheels to roll onto the external ground, a lifting mechanism arranged on the bottom plate and used for lifting the support plate to make the wheels in suspension, a first guide rail, and a second guide rail; the first guide rail and the second guide rail are arranged in parallel and at intervals on the frame body; a sliding channel is formed between the first guide rail and the second guide rail and located directly above the bottom plate and allowing the vehicle body to slide in.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of material conveying vehicles, and more particularly to a material vehicle positioning system. BACKGROUND

[0002] In the process of modern mechanical and electrical product processing, it is often necessary to convey materials. In many cases, wheel type material vehicles are used to transport workpieces (such as parts), in order to facilitate the taking of workpieces on the material vehicle, the material vehicle is usually stopped at a designated position, and then the user or a mechanical arm takes the workpiece on the material vehicle into the assembly line. The material vehicle is easy to move freely, which often leads to inaccurate movement to the designated position. When the user takes the workpiece on the material vehicle, the user needs to adjust according to the different positions of the material vehicle. The material vehicle is also easy to move during the process of taking the workpiece, which further increases the change of the position of the material vehicle itself, greatly increasing the difficulty of the user taking the workpiece on the material vehicle. SUMMARY

[0003] The purpose of the present application is to provide a material vehicle positioning system to solve the technical problem of inaccurate parking position of the material vehicle in the prior art, which increases the difficulty of the user taking the workpiece.

[0004] To achieve the above purpose, the technical solution adopted by the present application is to provide a material vehicle positioning system, comprising: a frame body, a vehicle body for carrying workpieces, wheels arranged at the bottom of the vehicle body, a support plate arranged in the air on the vehicle body, a bottom plate arranged on the frame body and allowing the wheels to roll from the external ground, a lifting mechanism arranged on the bottom plate and used to lift the support plate to make the wheels suspended, a first guide rail, and a second guide rail; the first guide rail and the second guide rail are arranged in parallel and spaced apart on the frame body; a sliding channel is formed between the first guide rail and the second guide rail, which is located directly above the bottom plate and allows the vehicle body to slide in.

[0005] Further, the lifting mechanism comprises: at least three support wheels arranged on the bottom plate; the number of support plates is at least three; there is a one-to-one correspondence between the at least three support wheels and the at least three support plates; for any corresponding group of support wheels and support plates; when the vehicle body slides to the predetermined position in the sliding channel, the support plate can be in contact with the support wheel and slide above the support wheel; when each support plate is supported above the support wheel, the wheels are in a suspended state.

[0006] Further, for any corresponding set of the support wheels and the support plate; when the vehicle body slides into the sliding-in channel, the two ends of the support plate are a first end and a second end in the sliding-in direction of the sliding-in channel; the height of the bottom surface of the first end gradually rises in the sliding-in direction of the sliding-in channel, and the height of the bottom surface of the frontmost end of the first end is higher than the axis of the support wheel, and the height of the bottom surface of the second end is lower than the height of the top end of the support wheel; when the vehicle body slides to the predetermined position in the sliding-in channel, the second end is supported on the support wheel.

[0007] Further, the number of the support wheels is four.

[0008] Further, the first end is an inclined flat plate.

[0009] Further, the second end is a horizontally arranged flat plate.

[0010] Further, the two sides of the vehicle body are respectively provided with a first roller and a second roller; the first roller is in contact with the first guide rail, and the second roller is in contact with the second guide rail; the number of the first rollers is at least two, and the number of the second rollers is at least two.

[0011] Further, it further comprises a tensioning connecting mechanism and a buffer spring arranged on the frame body; when the vehicle body slides to the predetermined position in the sliding-in channel, the vehicle body abuts against the buffer spring; the vehicle body is connected to the bottom plate through the tensioning connecting mechanism.

[0012] Further, the frame body is provided with a proximity sensing sensor; when the vehicle body slides to the predetermined position in the sliding-in channel, the vehicle body can trigger the proximity sensing sensor.

[0013] Further, the frame body is provided with a height recognition sensor for detecting the height of the workpiece on the vehicle body.

[0014] The material vehicle positioning system has the beneficial effects that, compared with the prior art, the material vehicle positioning system provided by the application is provided with wheels at the bottom of the vehicle body, the vehicle body can roll on the ground through the wheels, workpieces can be placed on the vehicle body for transportation, the wheels of the vehicle body can roll from the ground to the bottom plate, the first guide rail and the second guide rail are arranged on the frame body in parallel and at intervals, the sliding channel is formed between the first guide rail and the second guide rail, the sliding channel is located above the bottom plate, that is, the wheels of the vehicle body can roll from the ground to the bottom plate, then the vehicle body can slide into the sliding channel on the bottom plate, the vehicle body located in the sliding channel is supported on the bottom plate, the moving direction of the vehicle body is more accurate under the guidance of the first guide rail and the second guide rail, the direction of the vehicle body in the moving process is avoided from being disordered, and the accuracy of the moving position of the vehicle body is improved, the support plate is arranged on the vehicle body, the height of the bottom end of the support plate is higher than that of the wheels, so that when the wheels are supported on the horizontal ground, the support plate is in a suspended state, the lifting mechanism is arranged on the bottom plate and can support the support plate to lift the vehicle body, the wheels are suspended after the vehicle body is lifted by the lifting mechanism, the vehicle body is avoided from freely rolling under the support of the wheels after the wheels are suspended, the stability of the vehicle body is improved, and the difficulty of the user in taking the workpieces on the vehicle body is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0016] Figure 1 The three-dimensional schematic view of the material vehicle positioning system provided by the embodiment of the application (the bottom plate is hidden);

[0017] Figure 2 The three-dimensional schematic view of the frame body, the lifting mechanism and the tensioning connecting mechanism provided by the embodiment of the application; Figure 1 The enlarged view of A in FIG. 4;

[0018] Figure 3 The three-dimensional schematic view of the frame body, the lifting mechanism and the tensioning connecting mechanism provided by the embodiment of the application;

[0019] Figure 4 The three-dimensional schematic view of the frame body, the lifting mechanism and the tensioning connecting mechanism provided by the embodiment of the application; Figure 3 The enlarged view of B in FIG. 4;

[0020] Figure 5 The three-dimensional schematic view of the frame body, the lifting mechanism and the tensioning connecting mechanism provided by the embodiment of the application; Figure 3 The enlarged view of C in FIG. 4;

[0021] Figure 6 The three-dimensional schematic view of the frame body, the lifting mechanism and the tensioning connecting mechanism provided by the embodiment of the application; Figure 3 The enlarged view of D in FIG. 4;

[0022] Figure 7 The perspective view of the product shelf provided by the embodiment of the present application;

[0023] Figure 8 The front view of the product shelf provided by the embodiment of the present application;

[0024] Figure 9 The top view of the shelf body, lifting mechanism and tension connecting mechanism provided by the embodiment of the present application;

[0025] Figure 10 The Figure 9 enlarged view of E in the middle;

[0026] Figure 11 The Figure 9 enlarged view of F in the middle.

[0027] In the drawings, various reference signs represent:

[0028] 1 - vehicle body; 11 - wheel; 12 - support plate; 121 - first end; 122 - second end; 13 - first roller; 14 - buffer spring; 2 - shelf body; 21 - bottom plate; 22 - first guide rail; 23 - second guide rail; 24 - sliding channel; 3 - lifting mechanism; 31 - support wheel; 4 - tension connecting mechanism; 41 - first rotating member; 411 - first pushing end; 42 - second rotating member; 421 - second pushing end; 43 - first driver; 431 - first telescopic part; 44 - second driver; 441 - second telescopic part; 45 - pushing member; 461 - first rotating shaft; 462 - second rotating shaft; 51 - proximity inductive sensor; 52 - height recognition sensor; 61 - product shelf; 62 - support shelf; 63 - positioning table; 64 - boss; 65 - buffer table; 651 - clamping groove; 66 - partition. DETAILED DESCRIPTION

[0029] In order to make the technical problems to be solved by the present application, technical solutions and beneficial effects clearer, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0031] It should be noted that in the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" herein is only a description of the relationship between the associated objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases of A alone, A and B together, and B alone. Wherein A, B can be singular or plural.

[0032] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0033] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0034] Please refer to Figures 1 to 11 , the material car positioning system provided by the present application will be described. The material car positioning system comprises a frame body 2, a car body 1 for carrying workpieces, a wheel 11 arranged at the bottom of the car body 1, a support plate 12 arranged in the air on the car body 1, a bottom plate 21 arranged on the frame body 2 and allowing the wheel 11 to roll from the external ground, a lifting mechanism 3 arranged on the bottom plate 21 and used to lift the support plate 12 to make the wheel 11 suspended, a first guide rail 22, and a second guide rail 23; The first guide rail 22 and the second guide rail 23 are arranged in parallel and spaced apart on the frame body 2; The first guide rail 22 and the second guide rail 23 form a sliding channel 24 located directly above the bottom plate 21 and allowing the car body 1 to slide in.

[0035] Thus, the bottom of the vehicle body 1 is provided with wheels 11, and the vehicle body 1 can roll on the ground through the wheels 11; the vehicle body 1 can place workpieces for transportation; the vehicle body 1 is provided on the bottom plate 21, and the wheels 11 of the vehicle body 1 can roll from the ground to the bottom plate 21; the frame body 2 is provided with a first guide rail 22, and the frame body 2 is provided with a second guide rail 23; the first guide rail 22 and the second guide rail 23 are parallel and spaced apart on the frame body 2; the first guide rail 22 and the second guide rail 23 form a sliding channel 24 for the vehicle body 1 to slide into; the sliding channel 24 is located above the bottom plate 21, that is, the wheels 11 of the vehicle body 1 can roll from the ground to the bottom plate 21, and then the vehicle body 1 can slide into the sliding channel 24 on the bottom plate 21, and the vehicle body 1 located in the sliding channel 24 is supported on the bottom plate 21; the moving direction of the vehicle body 1 is more accurate under the guidance of the first guide rail 22 and the second guide rail 23, avoiding the confusion of the moving direction of the vehicle body 1 in the moving process, and improving the accuracy of the moving position of the vehicle body 1; the vehicle body 1 is provided with a support plate 12, and the height of the bottom end of the support plate 12 is higher than that of the wheels 11, so that when the wheels 11 are supported on the horizontal ground, the support plate 12 is in a suspended state; the bottom plate 21 is provided with a lifting mechanism 3, and the lifting mechanism 3 can support the support plate 12 to lift the vehicle body 1; after the vehicle body 1 is lifted by the lifting mechanism 3, the wheels 11 can be suspended, which can avoid the free rolling of the vehicle body 1 under the support of the wheels 11, improve the stability of the vehicle body 1, and thus reduce the difficulty of the user to take the workpieces on the vehicle body 1.

[0036] In one embodiment, the number of wheels 11 is four.

[0037] In one embodiment, the movement of the vehicle body 1 is manually (or mechanically) pushed.

[0038] In one embodiment, the workpiece is, for example, an automobile part.

[0039] In one embodiment, the sliding channel 24 is a gap channel between the first guide rail 22 and the second guide rail 23. In one embodiment, in the gap channel, the inner wall of the first guide rail 22 is a vertically arranged plane; in the gap, the inner wall of the second guide rail 23 is a vertically arranged plane.

[0040] In one embodiment, the lifting mechanism 3 can be a cylinder (or a jack) arranged on the bottom plate 21 and capable of supporting below the support plate 12 and lifting the support plate 12.

[0041] In one embodiment, the bottom plate 21 is a flat plate. In one embodiment, the bottom plate 21 is horizontally arranged. In one embodiment, the first guide rail 22 and the second guide rail 23 respectively extend in a horizontal straight line direction.

[0042] In one embodiment, the vehicle body 1 can be lifted by the lifting mechanism 3 when sliding in the sliding channel 24.

[0043] Further, referring to Figures 1 to 11 , as a specific embodiment of the material car positioning system provided by the present application, the lifting mechanism 3 comprises: at least three supporting wheels 31 arranged on the bottom plate 21; the number of supporting plates 12 is at least three; there is a one-to-one correspondence between the at least three supporting wheels 31 and the at least three supporting plates 12; for any corresponding group of supporting wheels 31 and supporting plates 12; when the vehicle body 1 slides to a predetermined position in the sliding channel 24, the supporting plate 12 can be in contact with the supporting wheel 31 and slide to the upper side of the supporting wheel 31; when each supporting plate 12 is respectively supported on the upper side of the supporting wheel 31, the wheel 11 is in a suspended state. In this way, when the vehicle body 1 slides along the sliding channel 24 to the predetermined position under the action of an external force (such as the user's push or the traction of the tensioned connecting mechanism 4), the supporting plate 12 can be in contact with the supporting wheel 31 and gradually slide along the supporting wheel 31 to the upper side of the supporting wheel 31; when each supporting plate 12 is respectively supported on the upper side of the supporting wheel 31, the wheel 11 is in a suspended state.

[0044] Further, referring to Figures 1 to 11 , as a specific embodiment of the material car positioning system provided by the present application, for any corresponding group of supporting wheels 31 and supporting plates 12; when the vehicle body 1 slides into the sliding channel 24, the two ends of the supporting plate 12 are respectively the first end 121 and the second end 122 in the sliding direction of the sliding channel 24; the height of the bottom surface of the first end 121 gradually rises in the sliding direction of the sliding channel 24, and the height of the bottom surface of the most front end of the first end 121 is higher than the axis of the supporting wheel 31, and the height of the bottom surface of the second end 122 is lower than the height of the top end of the supporting wheel 31; when the vehicle body 1 slides to a predetermined position in the sliding channel 24, the second end 122 is supported on the supporting wheel 31. In this way, when the supporting plate 12 slides along the sliding channel 24 to the supporting wheel 31, the bottom surface of the first end 121 can first contact the supporting wheel 31; because the height of the bottom surface of the most front end of the first end 121 is higher than the axis of the supporting wheel 31 in the sliding direction of the sliding channel 24, the supporting plate 12 is easily guided by the bottom surface of the first end 121 to slide to the upper side of the supporting wheel 31.

[0045] Further, referring to Figures 1 to 11 , as a specific embodiment of the material car positioning system provided by the present application, the number of supporting wheels 31 is four. In this way, the multiple supporting wheels 31 are more stable.

[0046] Further, referring to Figures 1 to 11 , as a specific embodiment of the material car positioning system provided by the present application, the first end 121 is an inclined flat plate. In this way, it is convenient for the first end 121 to more stably lift its own height when sliding along the supporting wheel 31.

[0047] Further, referring to Figures 1 to 11As a specific embodiment of the material vehicle positioning system provided by the present application, the second end 122 is a horizontally arranged flat plate. In this way, the second end 122 is more stable when supported on the support wheel 31.

[0048] Further, referring to Figures 1 to 11 As a specific embodiment of the material vehicle positioning system provided by the present application, the two sides of the vehicle body 1 are respectively provided with the first roller 13 and the second roller 23; the first roller 13 is in contact with the first guide rail 22, and the second roller 23 is in contact with the second guide rail 23; the number of the first roller 13 is at least two, and the number of the second roller 23 is at least two. In this way, the first roller 13 slides along the first guide rail 22, and the second roller 23 slides along the second guide rail 23, so that the vehicle body 1 is not easy to scratch.

[0049] Further, referring to Figures 1 to 11 As a specific embodiment of the material vehicle positioning system provided by the present application, it further comprises the tension connection mechanism 4 and the buffer spring 14 arranged on the frame body 2; when the vehicle body 1 slides to the predetermined position in the sliding channel 24, the vehicle body 1 abuts against the buffer spring 14; and the vehicle body 1 is connected to the bottom plate 21 through the tension connection mechanism 4. In this way, when the vehicle body 1 moves to the predetermined position in the sliding channel 24, the vehicle body 1 can abut against the buffer spring 14, the buffer spring 14 can slow down the vehicle body 1, and the tension connection mechanism 4 can connect the vehicle body 1 and the bottom plate 21, so as to avoid the vehicle body 1 from sliding off the bottom plate 21.

[0050] In one embodiment, the vehicle body 1 is limited between the buffer spring 14 and the tension connection mechanism 4.

[0051] In one embodiment, the tensioning connecting mechanism 4 comprises a pushing member 45 arranged on the vehicle body 1, a first rotating member 41 rotatably arranged on the bottom plate 21 about a first rotating shaft 461, a first driver 43 arranged on the bottom plate 21 and configured to drive the first rotating member 41 to rotate, a second rotating member 42 rotatably arranged on the bottom plate 21 about a second rotating shaft 462, and a second driver 44 arranged on the bottom plate 21 and configured to drive the second rotating member 42 to rotate; the first rotating member 41 is switchable between a first angle, a third angle, and a fifth angle; the second rotating member 42 is switchable between a second angle, a fourth angle, and a sixth angle; the first driver 43 is configured to drive the first rotating member 41 to rotate, and the second driver 44 is configured to drive the second rotating member 42 to rotate; when the vehicle body 1 slides to a predetermined position in the sliding-in passage 24, when the first rotating member 41 rotates to the first angle and the second rotating member 42 rotates to the second angle, a gap space is formed between the first rotating member 41 and the second rotating member 42, the pushing member 45 is movable through the gap space from outside, and the first pushing end 411 and the second pushing end 421 are located upstream of the pushing member 45 in the sliding-in direction of the sliding-in passage 24; when the vehicle body 1 slides to the predetermined position in the sliding-in passage 24, when the first rotating member 41 rotates from the first angle to the third angle, the first pushing end 411 is rotated into the gap space between the first rotating member 41 and the second rotating member 42, and the first pushing end 411 is configured to prevent the pushing member 45 from sliding out of the sliding-in passage 24 in a direction opposite to the sliding-in direction; when the vehicle body 1 slides to the predetermined position in the sliding-in passage 24, the second rotating member 42 rotates from the second angle to the fourth angle, the second pushing end 421 is rotated into the gap space between the second rotating member 42 and the second rotating member 42, and the second pushing end 421 is configured to prevent the pushing member 45 from sliding out of the sliding-in passage 24 in a direction opposite to the sliding-in direction; when the vehicle body 1 slides to the predetermined position in the sliding-in passage 24, when the first rotating member 41 rotates from the third angle to the fifth angle, the first pushing end 411 is configured to contact the pushing member 45 in the gap space and gradually move towards the sliding-in direction of the sliding-in passage 24, i.e., the first pushing end 411 is configured to push the vehicle body 1 to slide along the sliding-in passage 24 through the pushing member 45; when the vehicle body 1 slides to the predetermined position in the sliding-in passage 24, when the second rotating member 42 rotates from the fourth angle to the sixth angle, the second pushing end 421 is configured to contact the pushing member 45 in the gap space and gradually move towards the sliding-in direction of the sliding-in passage 24, i.e., the second pushing end 421 is configured to push the vehicle body 1 to slide along the sliding-in passage 24 through the pushing member 45.

[0052] In one embodiment, the first driver 43 is any one of a first air cylinder having a first telescopic part 431, a first electric push rod, and a first electric motor. The first telescopic part 431 is rotatably connected to the first rotating member 41 to drive the first rotating member 41 to rotate.

[0053] In one embodiment, the second driver 44 is any one of a second air cylinder with a second telescopic part 441, a second electric push rod, and a second motor. The second telescopic part 441 is rotationally connected to the second rotating member 42 to drive the second rotating member 42 to rotate.

[0054] In one embodiment, the frame body 2 is provided with a support frame 62, and the support frame 62 is provided with a positioning table 63. The positioning table 63 has a groove with a trapezoidal cross section, and the vehicle body 1 has a boss 64 with a trapezoidal shape. When the vehicle body 1 slides along the sliding channel 24 to a predetermined position, the boss 64 is inserted into the groove, so that the vehicle body 1 is not easy to shake.

[0055] In one embodiment, a buffer table 65 is clamped between the positioning table 63 and the support frame 62. In one embodiment, the buffer table 65 is provided with a clamping groove 651, and the positioning table 63 is clamped in the clamping groove 651. The bottom wall of the clamping groove 651 is perpendicular to the extension direction of the sliding channel 24. In one embodiment, the buffer table 65 is an integral piece made of a material with elasticity.

[0056] In one embodiment, the sliding channel 24 extends along a straight line.

[0057] In one embodiment, the number of buffer springs 14 is multiple along the extension direction of the sliding channel 24, and any two buffer springs 14 are separated by a separation piece 66. In this way, multiple buffer springs 14 can respectively play a buffering effect, and the stress is transmitted between adjacent buffer springs 14 through the separation piece 66.

[0058] Further, please refer to Figures 1 to 11 , as a specific embodiment of the material vehicle positioning system provided by the present application, the frame body 2 is provided with: a proximity sensor 51; when the vehicle body 1 slides to a predetermined position in the sliding channel 24, the vehicle body 1 can trigger the proximity sensor 51. In this way, when the vehicle body 1 reaches the predetermined position, the user can determine whether the vehicle body 1 reaches the predetermined position through the proximity sensor 51. In one embodiment, the user reads the information on the vehicle body 1 (such as the sensing chip on the vehicle body 1) through the proximity sensor 51.

[0059] In one embodiment, the number of proximity sensors 51 is three.

[0060] Further, please refer to Figures 1 to 11 , as a specific embodiment of the material vehicle positioning system provided by the present application, the frame body 2 is provided with a height recognition sensor 52 for detecting the height of the workpiece on the vehicle body 1. In this way, the user can determine whether there is a workpiece on the vehicle body 1 and the height of the workpiece through the height recognition sensor 52.

[0061] In one embodiment, the product rack 61 is provided on the vehicle body 1, and six workpieces can be placed on the product rack 61 from top to bottom.

[0062] The above description is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the technical principles of the present application, several improvements and replacements can be made, and these improvements and replacements should be considered as the protection scope of the present application.

Claims

1. A vehicle positioning system, characterized by, The device comprises a frame, a vehicle body for carrying workpieces, wheels arranged at the bottom of the vehicle body, a support plate arranged on the vehicle body in a suspended manner, a bottom plate arranged on the frame and allowing the wheels to roll onto the external ground, a lifting mechanism arranged on the bottom plate and used for lifting the support plate to make the wheels suspended, a first guide rail, and a second guide rail; the first guide rail and the second guide rail are arranged in parallel and spaced apart on the frame; a sliding channel is formed between the first guide rail and the second guide rail and located directly above the bottom plate and allowing the vehicle body to slide into the sliding channel. The device further comprises a tensioning connecting mechanism and a buffer spring arranged on the frame; when the vehicle body slides to a predetermined position in the sliding channel, the vehicle body abuts against the buffer spring; the vehicle body is connected to the bottom plate through the tensioning connecting mechanism. The tensioning connecting mechanism comprises a pushing member arranged on the vehicle body, a first rotating member arranged on the bottom plate and rotating around a first rotating shaft, and a first driver arranged on the bottom plate and used for driving the first rotating member to rotate; the first rotating member has a first pushing end; the first rotating member can be switched between a first angle, a third angle, and a fifth angle; when the vehicle body slides to the predetermined position in the sliding channel and the first rotating member rotates from the first angle to the third angle, the first pushing end can prevent the pushing member from sliding out of the sliding channel in a direction opposite to the sliding direction; during the process that the first rotating member rotates from the third angle to the fifth angle, the first pushing end can push the vehicle body to slide along the sliding channel through the pushing member. The lifting mechanism comprises at least three support wheels arranged on the bottom plate; the number of the support plates is at least three; there is a one-to-one correspondence between the at least three support wheels and the at least three support plates; for any corresponding group of the support wheels and the support plates; when the vehicle body slides to the predetermined position in the sliding channel, the support plates can contact the support wheels and slide above the support wheels; when each of the support plates is supported above the support wheels, the wheels are in a suspended state.

2. The vehicle positioning system of claim 1, wherein, For any corresponding group of the support wheels and the support plates; when the vehicle body slides into the sliding channel, in the sliding direction of the sliding channel, the two ends of the support plate are a first end and a second end respectively; in the sliding direction of the sliding channel, the height of the bottom surface of the first end gradually rises upwards, and the height of the bottom surface of the foremost end of the first end is higher than the axis of the support wheel, and the height of the bottom surface of the second end is lower than the height of the top end of the support wheel; when the vehicle body slides to the predetermined position in the sliding channel, the second end is supported on the support wheel.

3. The vehicle positioning system of claim 2, wherein, The number of the support wheels is four.

4. The vehicle positioning system of claim 3, wherein, The first end is an inclined flat plate.

5. The vehicle positioning system of claim 3, wherein, The second end is a horizontally arranged flat plate.

6. The vehicle positioning system of claim 3, wherein, ​ 7. The vehicle positioning system of claim 1, wherein, Two sides of the vehicle body are respectively provided with first rollers and second rollers; the first rollers are in contact with the first guide rails, and the second rollers are in contact with the second guide rails; the number of the first rollers is at least two, and the number of the second rollers is at least two.

8. The vehicle positioning system of claim 1, wherein, The frame body is provided with a proximity sensor; when the vehicle body slides to the predetermined position in the sliding channel, the vehicle body can trigger the proximity sensor.

9. The vehicle positioning system of claim 1, wherein, The frame body is provided with a height recognition sensor for detecting the height of a workpiece on the vehicle body.

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