Front overhang carrier production line and working method thereof

Abstract

The invention belongs to the technical field of automobile production lines, and discloses a front overhang carrier production line and a working method thereof. The system comprises an AGV trolley, a carrier table and support assemblies, the carrier table is installed on the upper side of the AGV trolley, the support assemblies are installed on the carrier table, a front overhang is vertically inserted into the support assemblies, the AGV trolley drives the front overhang to move along a set route, and the support assemblies are linearly and symmetrically installed on the carrier table; the problems that in the prior art, the risk of transporting the front overhang through a crane is high, and the efficiency of transporting through a manual trolley is low are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile production lines, and in particular to a front suspension vehicle production line and a working method thereof. Background Art

[0002] Most of the front suspensions of today's cars are McPherson suspensions. The upper side of the McPherson suspension is usually composed of coil springs and shock absorbers, while the lower side of the McPherson suspension is usually composed of brake discs, brake calipers and steering knuckles. It is connected to other structures of the car body through the tower top on the steering knuckle and the upper side of the shock absorber. The front suspension parts are about 700mm high, 300mm wide, and weigh about 20KG. They are irregular heavy objects. In the process of lifting the front suspension, a fixed-point lifting method is usually used. Specifically, the front suspension can stay in the same position and maintain the same direction before being lifted, so that the lifting rope can be connected to the preset point of the front suspension, so that the front suspension can maintain balance during the lifting process; nowadays, manual trolleys or tractors are usually used for transportation, and the efficiency of manual transportation of the front suspension is low and cannot meet the usage of automobile production. The tractor is large in size and does not change direction on the narrow production side to adjust the angle of the front suspension. At the same time, the tractor also needs to be manually driven, and fixed-point lifting cannot be achieved, which will increase the risk during the front suspension lifting process. Summary of the invention

[0003] The object of the present invention is to provide a front overhang carrier production line and a working method thereof, so as to solve the problem that the front overhang is transported at high risk by crane and transported in low efficiency by manual trolley in the prior art.

[0004] To achieve this object, the present invention adopts the following technical solution: The present invention provides a front overhang carrier production line, including an AGV trolley, a carrier platform and a bracket assembly, the carrier platform is installed on the upper side of the AGV trolley, the bracket assembly is installed on the carrier platform, the front overhang is vertically plugged into the bracket assembly, the AGV trolley drives the front overhang to move along a set route, and the bracket assembly is linearly and symmetrically installed on the carrier platform.

[0005] Preferably, the bracket assembly includes a first bracket, a second bracket and a third bracket, the front suspension includes a brake disc, a hydraulic rod and a connecting rod, the lower end of the hydraulic rod abuts against the upper side of the first bracket, the lower side of the connecting rod is inserted into the slot on the second bracket, and an arc groove is formed on the upper side of the third bracket, and the brake disc is inserted into the arc groove.

[0006] Preferably, guide rods are formed on both sides of the first bracket, the two groups of guide rods are in an eight-shaped shape, and the hydraulic rod is arranged between the guide rods.

[0007] Preferably, a crossbeam is installed at the lower side of the carrier platform, a plug-in hole is formed on the crossbeam, a lifting assembly is installed on the AGV trolley, the lifting assembly includes a fixed shell, a limiting column is passed through the fixed shell, the limiting column is plugged into the plug-in hole, a flange is formed on the lower side of the limiting column, a motor is installed on the side wall of the fixed shell, a turntable is installed at the output end of the motor, an abutment wheel is installed on the turntable, the abutment wheel is crimped on the upper side of the flange, a fixed shaft is installed in the fixed shell, the fixed shaft is plugged into the limiting column, a spring is sleeved on the fixed shaft, and the spring is connected to the limiting column.

[0008] Preferably, support legs are installed on the carrier platform, rollers are installed on the support legs, and a handle is installed on the carrier platform.

[0009] Preferably, the front suspension vehicle production line further comprises a magnetic strip, a sensor is installed at the bottom of the AGV trolley, the sensor moves along the magnetic strip, the magnetic strip is pre-buried in a groove on the factory floor, and the groove is paved with resin.

[0010] Preferably, the front suspension vehicle production line also includes a charging pile, which is laid on one side of the magnetic strip, a sliding plug is installed in the charging pile, a docking slot is installed on the AGV trolley, and the plug is extended and plugged into the docking slot; the magnetic strip includes a conveying section and a recovery section, the charging pile is installed on the recovery section, and a crane is installed on the conveying section.

[0011] Preferably, a wireless signal receiver is installed on the AGV cart, and the front suspension vehicle production line also includes a wireless signal transmitter. The wireless signal transmitter communicates with the wireless signal receiver through electromagnetic waves, and the wireless signal receiver controls the movement of the AGV cart.

[0012] A working method of a front suspension vehicle production line comprises the front suspension vehicle production line described above, and further comprises the following steps:

[0013] S1, the sliding plug is pulled out from the docking slot, the charging pile is separated from the AGV, and the AGV moves along the magnetic strip;

[0014] S2, the AGV moves from the recovery section to the conveying section, the AGV enters the loading area, and the crane places the front overhang on the bracket assembly;

[0015] S3, the AGV trolley drives the carrier to rotate 180°, and the crane places the front overhang on the remaining bracket components;

[0016] S4, the AGV trolley drives the carrier to move to the unloading area, and the crane lifts out the front suspension on the bracket assembly;

[0017] S5, the AGV trolley drives the carrier to rotate 180°, and the crane lifts out the front suspension on the remaining bracket components;

[0018] S6, the AGV trolley drives the carrier platform along the conveying section into the recovery section, and the sliding plug extends out and is inserted into the docking groove.

[0019] Beneficial effect: The transportation of the front overhang is realized by combining the AGV trolley with the carrier platform, so that the carrier platform can rotate and move with the AGV trolley. At least two sets of front overhangs are linearly symmetrically installed on the carrier platform of the present invention. Through the in-situ rotation and movement of the AGV trolley, the front overhang can be kept consistent with the coordination position of the crane under the rotation of the AGV trolley, and the fixed-point lifting can be maintained during the process of lifting the front overhang to the carrier platform. The position of the crane placing the front overhang remains unchanged, but through the change of the position of the AGV trolley, the front overhang can be placed on different support components of the carrier platform. At the same time, the front overhang can be lifted out from the carrier platform at a fixed point, so that during the lifting of the front overhang, the position of the crane remains unchanged, and the front overhang on the carrier platform rotates and moves with the AGV trolley, so that the front overhang can be separated from the carrier platform from the same position and lifted out by the crane, which is convenient for the crane to be connected smoothly with the front overhang, reduces the lifting risk, and improves transportation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a working schematic diagram of the AGV trolley of the present invention;

[0021] Figure 2 It is a main body diagram of the bracket assembly of the present invention;

[0022] Figure 3 It is a cross-sectional view of the jacking assembly of the present invention.

[0023] In the figure: 1. AGV trolley; 2. carrier platform; 21. crossbeam; 22. roller; 23. support leg; 3. bracket assembly; 31. first bracket; 311. guide rod; 32. second bracket; 33. third bracket; 331. arc groove; 4. lifting assembly; 41. fixed shell; 42. limit column; 43. flange; 44. motor; 45. turntable; 46. spring; 47. fixed shaft; 48. abutment wheel; 5. handle. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0025] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0027] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0028] Under the existing technology, the production efficiency of manually pushing the front overhang is low and cannot adapt to the current production rhythm. There is also a method of transporting the front overhang by manually driving a forklift, but since the front overhang needs to be lifted at a fixed point, in order to adapt to the lifting angle and position of the crane, a manually driven forklift needs to be fine-tuned. Due to the large size of the forklift and the small space of the automobile assembly production line, if the lifting position of the front overhang is changed, the forklift needs to be turned over a large range, which is prone to collision accidents and reduces production efficiency.

[0029] In order to solve the above problems, Figures 1 to 3 As shown, the present invention provides a front overhang carrier production line, which includes an AGV trolley 1, a carrier platform 2 and a bracket assembly 3. The carrier platform 2 is installed on the upper side of the AGV trolley 1, and the bracket assembly 3 is installed on the carrier platform 2. The front overhang is vertically plugged into the bracket assembly 3. The AGV trolley 1 drives the front overhang to move along a set route, and the bracket assembly 3 is installed on the carrier platform 2 in a linear and symmetrical manner.

[0030] The front overhang can be fixed by the bracket assembly 3 so that the front overhang can be stably installed on the carrier platform 2. Since the AGV cart 1 is small in size, the AGV cart 1 is installed at the bottom of the carrier platform 2 to improve the space utilization of the transport vehicle. It is more suitable for shuttling and rotating in narrow spaces within the factory, making the transportation process more flexible. Four groups of bracket assemblies 3 are installed on the carrier platform 2 of the present invention. In order to avoid interference and to increase the capacity of the vehicle, the four groups of bracket assemblies 3 are installed symmetrically on two axes, so that each AGV cart 1 can transport 4 front overhangs, which can improve transportation efficiency, meet the current production rhythm, and avoid production line shutdowns.

[0031] The bracket assembly 3 of the present invention includes a first bracket 31, a second bracket 32 ​​and a third bracket 33. The front suspension includes a brake disc, a hydraulic rod and a connecting rod. The lower end of the hydraulic rod abuts against the upper side of the first bracket 31, and the lower side of the connecting rod is inserted into the slot on the second bracket 32. An arc groove 331 is formed on the upper side of the third bracket 33, and the brake disc is inserted into the arc groove 331.

[0032] Four groups of front suspensions are placed on the carrier platform 2 of the present invention. Through the limitation of the bracket assembly 3, the axis of the hydraulic rod on the front suspension can be perpendicular to the ground. The front suspension at the above angle can remain stable during the lifting process and reduce the amplitude of shaking, thereby avoiding the occurrence of falling accidents. The brake disc is directly inserted into the arc groove 331, and then the connecting rod is directly overlapped on the second bracket 32, and the first bracket 31 is abutted against the lower side of the hydraulic rod. The above three groups of contact points with the front suspension can improve the stability of the front suspension under the transportation of the AGV cart 1.

[0033] Guide rods 311 are formed on both sides of the first bracket 31, and the two sets of guide rods 311 are in an eight-shaped shape, and the hydraulic rod is arranged between the guide rods 311. The first bracket 31 of the present invention has the highest height, and when the crane places the front suspension on the first bracket 31, the hydraulic rod will directly contact the guide rods 311 first, correct the position of the front suspension in the suspended state, and enable the front suspension to be accurately plugged into the bracket assembly 3.

[0034] A crossbeam 21 is installed on the lower side of the carrier platform 2, and a plug-in hole is formed on the crossbeam 21. At least one set of lifting components 4 is installed on the AGV trolley 1. The lifting components 4 include a fixed shell 41, which is directly installed on the top of the AGV trolley 1. A limiting column 42 is passed through the fixed shell 41, and the limiting column 42 is plugged into the plug-in hole. A flange 43 is formed on the lower side of the limiting column 42. A motor 44 is installed on the side wall of the fixed shell 41, and a turntable 45 is installed at the output end of the motor 44. An abutment wheel 48 is installed on the turntable 45, and the abutment wheel 48 is crimped on the upper side of the flange 43. A fixed shaft 47 is installed in the fixed shell 41, and the fixed shaft 47 is plugged into the limiting column 42. A spring 46 is sleeved on the fixed shaft 47, and the spring 46 is connected to the limiting column 42.

[0035] The AGV trolley 1 and the carrier platform 2 of the present invention can be separated. If the AGV trolley 1 itself fails, the crossbeam 21 can be separated from the AGV trolley 1 by manually pressing the limit column 42. At this time, the spring 46 will be compressed, and then other tools are used to drive the carrier platform 2 to move and repair the AGV trolley 1. The limit column 42 is controlled to rise and fall by the motor 44, wherein the abutment wheel 48 is installed on the edge of the turntable 45. When the motor 44 drives the turntable 45 to rotate, the vertical direction of the abutment wheel 48 will change, and then the abutment wheel 48 can be pressed on the flange 43 at the lower end of the limit column 42, so that the limit column 42 descends. At the same time, since the bottom of the limit column 42 is installed with a spring 46, if the limit column 42 needs to rise, the motor 44 controls the turntable 45 to rotate in the opposite direction, so that the abutment wheel 48 rotates upward, and the spring 46 will reset the limit column 42.

[0036] The carrier platform 2 of the present invention is provided with supporting legs 23, rollers 22 are provided on the supporting legs 23, and a handle 5 is provided on the carrier platform 2. The handle 5 can be manually held to push the carrier platform 2 to move, and the rollers 22 on the supporting legs 23 are in contact with the ground. The rollers 22 can move under the drive of the AGV trolley 1, and can also be manually pushed, so that the carrier platform 2 and the AGV trolley 1 can be separated in the event that the AGV trolley 1 is damaged, and the carrier platform 2 is manually pushed to move to avoid suspension of the production line.

[0037] The AGV trolley 1 of the present invention is usually moved by the magnetic strips on the ground. The laying direction of the magnetic strips is the moving direction of the AGV trolley 1. The laying route of the magnetic strips of the present invention is circular, one part of which is the conveying section and the other part is the recycling section. The bottom of the AGV trolley 1 is equipped with a sensor, and the sensor moves along the magnetic strips. The magnetic strips are pre-buried in the grooves on the factory floor, and the grooves are paved with resin. By deeply burying the magnetic strips under the ground, the wheels and rollers 22 of the AGV trolley 1 are prevented from wearing the magnetic strips. By filling the vertical protective magnetic strips, the floor of the factory can be kept in a flat state, which is convenient for the AGV trolley 1 to drive the carrier 2 to move.

[0038] The front suspension vehicle production line also includes a charging pile. The charging pile is laid on one side of the magnetic strip. A sliding plug is installed in the charging pile. A docking slot is installed on the AGV trolley 1. The plug extends out and is plugged into the docking slot. The magnetic strip includes a conveying section and a recovery section. The charging pile is installed on the recovery section, and a crane is installed on the conveying section.

[0039] When the AGV moves along the circular magnetic stripe route composed of magnetic strips, if it reaches a certain distance, the AGV 1 will be out of power. A charging pile is installed on one side of the magnetic strip. When the AGV 1 recognizes that its own power cannot continue to travel, it will stop on the side of the charging pile. At this time, the charging pile control plug connector extends out and plugs the charging head into the docking slot, finally realizing the charging of the AGV 1, so that the AGV 1 can be recycled. Part of the AGV 1 moves on the magnetic stripe, while the other part of the AGV 1 is in a charging state. When the moving AGV 1 is exhausted, the AGV 1 in the previous charging state will be put into use.

[0040] A wireless signal receiver is installed on the AGV trolley 1, and the front suspension carrier production line also includes a wireless signal transmitter. The wireless signal transmitter and the wireless signal receiver communicate with each other through electromagnetic waves. The wireless signal receiver controls the movement of the AGV trolley 1. A display screen is also installed on the carrier platform 2 production line. The wireless signal receiver can display the real-time position of the AGV trolley 1 on the display screen. When the magnetic strip fails, the controller electrically connected to the wireless signal receiver controls the AGV trolley 1 to continue moving.

[0041] A working method of a front suspension vehicle production line comprises the following steps:

[0042] S1, the sliding plug is pulled out from the docking slot, the charging pile is separated from the AGV 1, and the AGV 1 moves along the magnetic strip;

[0043] S2, AGV trolley 1 moves from the recovery section to the conveying section, AGV trolley 1 enters the loading area, and the crane places the front overhang on the bracket assembly 3;

[0044] S3, the AGV trolley 1 drives the carrier platform 2 to rotate 180°, and the crane places the front suspension on the remaining bracket assembly 3;

[0045] S4, the AGV trolley 1 drives the carrier platform 2 to move to the unloading area, and the crane lifts out the front suspension on the bracket assembly 3;

[0046] S5, the AGV trolley 1 drives the carrier platform 2 to rotate 180 degrees, and the crane lifts out the front suspension on the remaining bracket components 3;

[0047] S6, the AGV trolley 1 drives the carrier platform 2 along the conveying section into the recovery section, and the sliding plug extends out and is inserted into the docking groove.

[0048] A crane is installed in both the loading and unloading areas, and a lifting rope is provided at the lower side of the crane, through which the front overhang can be lifted out; in the loading area, the AGV trolley 1 will be parked at a set position, so that the support component is directly below the lifting rope, and the lifting rope can directly place the front overhang on the support component, and then the AGV trolley 1 moves so that the remaining vacant support components are located directly below the lifting rope, so that the lifting rope can continue to place the front overhang, and then the AGV trolley 1 rotates, and the vacant support components on the symmetrical side of the axis are adjusted to the lower side of the lifting rope, so that the lifting rope is at the same position each time. Place the front overhang at the bottom; similarly, in the loading area, the AGV trolley 1 will also stop at the set position, so that the front overhang is just below the lifting rope, and the lifting rope can directly lift the front overhang from the support assembly. Then the AGV trolley 1 moves, so that the other set of support assemblies is located just below the lifting rope, which is convenient for the lifting rope to continue to lift the front overhang. Then the AGV trolley 1 rotates, and adjusts the support assembly on the axisymmetric side of the front overhang to the lower side of the lifting rope, so that the lifting rope can lift the front overhang with the same placement direction at the same position each time, so as to achieve smooth transportation of the front overhang, fixed-point lifting, and reduce the risk of falling.

[0049] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A front suspension vehicle production line, characterized in that: The invention comprises an AGV trolley (1), a carrier platform (2) and a bracket assembly (3), wherein the carrier platform (2) is mounted on the upper side of the AGV trolley (1), the bracket assembly (3) is mounted on the carrier platform (2), the front overhang is vertically plugged into the bracket assembly (3), the AGV trolley (1) drives the front overhang to move along a set route, and the bracket assembly (3) is linearly and symmetrically mounted on the carrier platform (2).

2. The front suspension vehicle production line according to claim 1, characterized in that: The bracket assembly (3) comprises a first bracket (31), a second bracket (32) and a third bracket (33); the front suspension comprises a brake disc, a hydraulic rod and a connecting rod; the lower end of the hydraulic rod abuts against the upper side of the first bracket (31); the lower side of the connecting rod is inserted into a slot on the second bracket (32); an arc groove (331) is formed on the upper side of the third bracket (33); the brake disc is inserted into the arc groove (331).

3. The front suspension vehicle production line according to claim 2, characterized in that: Guide rods (311) are formed on both sides of the first bracket (31), the two groups of guide rods (311) are in an eight-shaped shape, and the hydraulic rod is arranged between the guide rods (311).

4. The front suspension vehicle production line according to claim 2, characterized in that: A crossbeam (21) is installed at the lower side of the carrier platform (2), and a plug-in hole is formed on the crossbeam (21). A lifting assembly (4) is installed on the AGV trolley (1), and the lifting assembly (4) includes a fixed shell (41). A limiting column (42) is inserted into the fixed shell (41), and the limiting column (42) is plugged into the plug-in hole. A flange (43) is formed on the lower side of the limiting column (42). A motor is installed on the side wall of the fixed shell (41). (44), a rotating disk (45) is installed at the output end of the motor (44), an abutment wheel (48) is installed on the rotating disk (45), and the abutment wheel (48) is pressed on the upper side of the flange (43), a fixed shaft (47) is installed in the fixed shell (41), and the fixed shaft (47) is inserted into the limiting column (42), and a spring (46) is sleeved on the fixed shaft (47), and the spring (46) is connected to the limiting column (42).

5. The front suspension vehicle production line according to claim 4, characterized in that: The carrier platform (2) is provided with a support leg (23), the support leg (23) is provided with a roller (22), and the carrier platform (2) is provided with a handle (5).

6. The front suspension vehicle production line according to claim 1, characterized in that: The front suspension vehicle production line also includes a magnetic strip. A sensor is installed at the bottom of the AGV trolley (1). The sensor moves along the magnetic strip. The magnetic strip is pre-buried in a groove on the factory floor, and the groove is paved with resin.

7. The front suspension vehicle production line according to claim 6, characterized in that: The front suspension vehicle production line also includes a charging pile, the charging pile is laid on one side of the magnetic strip, a sliding plug is installed in the charging pile, a docking slot is installed on the AGV trolley (1), and the plug extends out and is inserted into the docking slot; the magnetic strip includes a conveying section and a recovery section, the charging pile is installed on the recovery section, and a crane is installed on the conveying section.

8. The front suspension vehicle production line according to claim 1, characterized in that: The AGV trolley (1) is equipped with a wireless signal receiver, and the front suspension vehicle production line further comprises a wireless signal transmitter. The wireless signal transmitter communicates with the wireless signal receiver via electromagnetic waves, and the wireless signal receiver controls the movement of the AGV trolley (1).

9. A working method of a front suspension vehicle production line, characterized in that: The front suspension vehicle production line according to claim 7 further comprises: The following steps are involved: S1, the sliding plug is pulled out from the docking slot, the charging pile is separated from the AGV (1), and the AGV (1) moves along the magnetic strip; S2, the AGV trolley (1) moves from the recovery section to the conveying section, the AGV trolley (1) enters the loading area, and the crane places the front overhang on the bracket assembly (3); S3, the AGV trolley (1) drives the carrier platform (2) to rotate 180 degrees, and the crane places the front overhang on the remaining support assembly (3); S4, the AGV trolley (1) drives the carrier platform (2) to move to the unloading area, and the crane lifts out the front overhang on the bracket assembly (3); S5, the AGV trolley (1) drives the carrier platform (2) to rotate 180 degrees, and the crane lifts out the front suspension on the remaining support components (3); S6, the AGV trolley (1) drives the carrier platform (2) along the conveying section into the recovery section, and the sliding plug extends out and is inserted into the docking groove.

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