Monorail vehicle suitable for spare tire installation on automobile assembly production line

Abstract

The invention discloses a monorail vehicle suitable for spare tire installation on an automobile assembly production line, and relates to the technical field of design and manufacturing of spare tire installation jigs on the automobile assembly production line. Comprising a frame mechanism, an inhaul cable mechanism, a guide mechanism and a locking mechanism, wherein the frame mechanism comprises a lower-layer frame and an upper-layer frame, and the locking mechanism is mounted at the front end of the lower-layer frame; the inhaul cable mechanism comprises a balancer, a balancer inhaul cable and a balancer inhaul cable fixing column; one end of the guide rod is fixed on the ground of the mobile assembly line; the locking mechanism comprises a locking hook, a sliding sleeve and a mounting column, the sliding sleeve is arranged at the middle section of the mounting column, and the locking hook is arranged in front of the sliding sleeve; according to the design, the difficult operation of deep stooping and deep squatting of workers can be eliminated, the hands of the workers do not need to enter a narrow area to assist installation, the potential safety hazard of hand pinching is eliminated, the risk of occupational diseases is thoroughly eliminated, and the design has the advantages of being simple in design, stable in guiding, free of energy and rapid and accurate in returning.

Description

Technical Field

[0001] The invention discloses a monorail vehicle suitable for installing spare tires on an automobile assembly production line, which is used for installing spare tires in a spare tire installation process on a car production line and relates to the technical field of design and manufacturing of spare tire installation jigs on the automobile assembly line. Background Art

[0002] A spare tire is a spare tire for a vehicle. Usually, the spare tire of a car is placed in the spare tire slot at the bottom of the trunk. On the production line, the spare tire of a small car is manually placed from the bottom of the vehicle, and then tightened by tightening the spare tire suspension cable from the top. Some cars also have a spare tire protective shell installed outside the spare tire. Usually, when a vehicle tire is damaged, leaking, or bursting, a spare tire is needed to replace it so that the vehicle can continue to drive safely to the maintenance point within a limited speed range. Therefore, the spare tire is basically a necessary spare part for new cars. On the new car production line, there is basically a tire installation station, which also includes the spare tire installation process.

[0003] The invention with announcement number CN115009341A provides a vehicle spare tire assembly device, including a movable frame, a temporary storage platform is arranged on the frame, and inclined flip slides and conveying slides are respectively arranged on both sides of the temporary storage platform, wherein the conveying slide can be flipped to a nearly horizontal state after being pressed. When in use, the spare tire is slid onto the temporary storage platform along the flip slide, and the spare tire is pushed toward the conveying slide. Under the action of gravity, the conveying slide is flipped to a nearly horizontal state, and then the spare tire is pushed from the conveying slide to fall into the spare tire pool to complete the spare tire assembly; the device can solve the spare tire assembly task that cannot be completed by manual labor and manipulators, and the spare tire assembly is easily realized with low cost. The device is suitable for directly loading the spare tire into the quilt slot in the trunk from above, and the operation of loading the spare tire from the bottom of the vehicle cannot be implemented.

[0004] Another utility model with announcement number CN206664737U discloses a spare tire lifter, including a shell and a protective cover. The shell is provided with a protective cover on the top, a rotating shaft is penetrated through the middle of the protective cover, the end of the rotating shaft extends out of the bottom of the shell, a back plate is provided on the hexagonal hole of the rotating shaft, two friction plates are provided under the back plate, an eccentric sleeve is connected below the friction plate, a guide gear is installed at the bottom of the eccentric sleeve, a winding gear matching with it is meshed below the guide gear, a wire rope is connected to the winding gear, a bent pipe is connected to one end of the shell, a hanger is connected to the end of the bent pipe, an angle bracket is sleeved on the end of the bent pipe away from the shell, a large lock is installed on the hanger, a hanger spring is sleeved between the large lock and the hanger, the other end of the wire rope is put through the hanger, the hanger spring is locked by the large lock. The utility model has a simple structure and has the functions of adjusting the height and self-locking. The technology mainly solves the problem that the height of the spare tire from the bottom surface is difficult to control. It is suitable for installing and removing the spare tire of a truck. Compared with small cars, large trucks are large in size and have a large chassis space. Therefore, the technology can be used to solve the problem of inconvenient operation due to the heavy spare tire when installing and putting down the spare tire, but it is not suitable for the installation of spare tires for cars.

[0005] At present, in the installation of spare tires for cars, especially when the spare tire needs to be installed from the bottom of the chassis upwards, it is mainly done by bending over manually. Due to the difference in vehicles, the spare tire installation operation area of ​​the car is narrow and it is impossible to add mechanical devices. Moreover, the tire weight of a general car is 30 to 35KG, and some even exceed the maximum safe load standard of 20KG. In addition, the tire diameter is also large and round, which makes it very inconvenient to take. When the installation area is below the rear of the frame, the tire needs to be lifted 10CM before the spare tire chain can be pre-installed. There is a safety hazard of bending over to carry weight during the operation, so there is a safety hazard of pinching. Summary of the invention

[0006] The purpose of the present invention is to design a monorail vehicle suitable for installing spare tires on automobile assembly production lines, which can complete the installation of spare tires for cars from below without deep bending, and the present invention includes a frame mechanism, a cable mechanism, a guide mechanism, and a locking mechanism:

[0007] A. The frame mechanism includes a lower frame and an upper frame, a locking mechanism is installed at the front end of the lower frame, a moving wheel is installed on the bottom surface of the lower frame structure, and a balancer and a guide positioning wheel are fixed under the front end cross beam of the lower frame;

[0008] Preferably: the length of the upper frame is shorter than the length of the lower frame;

[0009] Preferably: the locking buckle of the locking mechanism is fixed in the middle of the front crossbeam of the lower frame;

[0010] B. The cable mechanism includes a balancer, a balancer cable, and a balancer cable fixing column, and the balancer is fixedly installed on the lower right side of the front crossbeam of the lower frame;

[0011] Preferably: the pull-out end of the balancer cable is fixed on the balancer cable fixing column;

[0012] C. The guide mechanism includes a guide rod, a guide positioning wheel, a front blocking spring, a rear blocking spring, a guide rod support, and a guide rod fixing seat; one end of the guide rod is fixed to the ground of the mobile assembly line by the guide rod support and the guide rod fixing seat, and the other end is fixedly connected to the mounting column of the locking mechanism after passing through the guide positioning wheel fixed on the front cross beam of the lower frame;

[0013] Preferably: a rear blocking spring and a front blocking spring are respectively provided at the front and rear ends of the guide rod;

[0014] Preferably, the guide positioning wheels are symmetrically arranged in two, the two guide positioning wheels are arranged on the front cross beam by the guide positioning wheel pin shaft, the two guide positioning wheels are rotatably arranged on the positioning wheel pin shaft, and the lower ends of the two guide positioning wheels are fixed by the positioning wheel pin shaft nuts;

[0015] Preferably: the groove parts of the guide positioning wheel are respectively clamped on both sides of the guide rod;

[0016] D. The locking mechanism includes a locking hook, a sliding sleeve, a mounting column, a return spring, a traction pulley, a pulley shaft, a traction rope, a pedal and a pedal seat; the mounting column is fixedly mounted on the ground of the mobile assembly line, a sliding sleeve that can slide up and down is arranged in the middle section of the mounting column, a locking hook is arranged in front of the sliding sleeve, and a traction rope fixed connection column is arranged behind the sliding sleeve; one end of the traction rope is fixed to the traction rope fixed connection column, and the other end is connected to the pedal through the traction pulley;

[0017] Preferably: the two ends of the return spring are hung on the upper hook of the return spring and the lower hook of the return spring respectively;

[0018] Preferably: the pedal is fixed on a pedal seat, and the pedal seat is fixed on the ground on the side of the tire placed outside the mobile assembly line;

[0019] Preferably: the height of the mounting column is lower than the height of the platform column of the vehicle to be installed, the platform columns of the vehicle to be installed are installed on both sides of the mobile assembly line, and the mounting position of the mounting column is deep in the middle of the platform columns of the vehicle to be installed on both sides;

[0020] Preferably: the position of the upper frame in the folded state is directly below the installation position of the spare tire of the vehicle to be installed;

[0021] Preferably: the height of the spare tire mounting monorail vehicle consisting of the lower frame, the upper frame, and the movable wheels plus the total height of the tires placed thereon is less than the height of the bottom surface of the spare tire from the ground after the spare tire is installed on the car.

[0022] Beneficial technical effects of the present invention

[0023] 1. By using the spare tire installation monorail car to install the spare tire of the car, since the spare tire to be installed is placed on the upper frame structure of the monorail car, it can reach the installation position by simply pushing it to the position where the spare tire is installed. At the same time, since the total height of the monorail car after loading the spare tire is less than the height of the bottom surface of the spare tire from the ground after the spare tire is installed on the car, it has a height suitable for the installation height, which can eliminate the difficult work of workers bending over and squatting deeply, and there is no need to bend over deeply or squat to work, and the hands do not need to enter the narrow area to assist in the installation, which can eliminate the safety hazard of hand pinching and completely eliminate the risk of occupational diseases;

[0024] 2. The monorail guide can guide the monorail vehicle with tires to run on the specified route, with simple design and good guiding effect;

[0025] 3. The designed locking mechanism can stabilize the monorail car and prevent it from moving when the worker is installing the spare tire, which can ensure that the installation is not distracted and does not require joint work. It can save about 0.38 yuan in labor costs each time and quickly complete the work of this section;

[0026] 4. The balancer used can automatically pull the monorail car back to the position for loading the spare tire. Since the pulling end of the cable is in a fixed position, it has the characteristics of no need for energy, fast return and accurate return position. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the installation position after being released on the production line of the present invention;

[0028] Figure 2 It is a schematic diagram of the structure after the production line of the present invention is folded;

[0029] Figure 3 The present invention Figure 2 A magnified schematic diagram of the structure in circle A;

[0030] Figure 4 The present invention Figure 1 A magnified schematic diagram of the structure in circle B;

[0031] Figure 5 The present invention Figure 4 Schematic diagram of the cross-sectional structure within circle C in the middle.

[0032] In the figure: 1-lower frame, 2-upper frame, 3-guide rod support, 4-balancer cable fixing column, 5-balancer, 6-locking buckle, 7-platform column to be installed, 8-beam of the platform to be installed, 9-guide rod, 10-locking hook, 11-sliding sleeve, 12-installation column, 13-traction pulley, 14-pulley shaft, 15-traction rope, 16-mobile assembly line, 17-installation working surface, 18-traction rope fixing connection column, 19-return Spring, 20-mounting column fixing bolt, 21-pedal, 22-pedal seat, 23-mounting column fixing seat, 24-front blocking spring, 25-guide positioning wheel, 26-locking buckle fixing bolt, 27-rear blocking spring, 28-guide rod fixing seat, 29-moving wheel, 30-return spring upper hook, 31-return spring lower hook, 32-balancer cable, 33-front crossbeam, 34-positioning wheel pin, 35-positioning wheel pin nut. DETAILED DESCRIPTION

[0033] In order to explain the structure, effect, installation and use of the present invention in detail, the best embodiment of the present invention is given below.

[0034] Embodiment 1: Structure and function of the present invention

[0035] See attached Figure 1-5 The monorail vehicle suitable for installing a spare tire on an automobile assembly production line includes a frame mechanism, a cable mechanism, a guide mechanism, and a locking mechanism.

[0036] The frame mechanism includes a lower frame 1 and an upper frame 2. A locking mechanism is installed at the front end of the lower frame 1 to fix the monorail vehicle of the present invention and prevent it from moving when workers install the spare tire. Moving wheels 29 are installed on the bottom surface of the lower frame structure to facilitate workers to push it after loading the spare tire. A balancer 5 is fixed under the front end cross beam of the lower frame 1. The set balancer can automatically pull the monorail vehicle back to the position for loading the spare tire, and the pulling end of the balancer 5 cable is fixed. Therefore, as long as the locking mechanism is released, it can return to the original position quickly without energy and energy saving, and the return position is accurate. In order to facilitate the installation of the locking mechanism, the length of the upper frame 2 is shorter than that of the lower frame 1. Such a setting can ensure that the locking mechanism is set in the middle of the front cross beam 33 of the lower frame 1, and after locking, it can ensure that the loaded spare tire will not hit the front end locking mechanism.

[0037] The cable mechanism includes a balancer 5, a balancer cable 32, and a balancer cable fixing column 4. The balancer 5 is fixedly installed on the lower right side of the front cross beam 33 of the lower frame 1; the pulling end of the balancer cable 32 is fixed on the balancer cable fixing column 4, so that after the lock is released, the balancer 5 pulls the monorail car back to its original position to load the next spare tire.

[0038] The guide mechanism includes a guide rod 9, a guide positioning wheel 25, a front blocking spring 24, a rear blocking spring 27, a guide rod support 3, and a guide rod fixing seat 28; one end of the guide rod 9 is fixed to the ground of the mobile assembly line 16 by the guide rod support 3 and the guide rod fixing seat 28, and the other end is fixedly connected to the mounting column 12 of the locking mechanism after passing through the guide positioning wheel 25 fixed on the front cross beam 33 of the lower frame; the set guide positioning wheel 25 and the guide rod 9 constitute a monorail, and under the clamping of the guide wheel 25, the monorail vehicle loaded with tires can be guided to run on a specified route, and the guiding effect is good; in order to reduce the shock absorption of the collision at both ends, the rear blocking spring 27 and the front blocking spring 24 are respectively arranged at the front and rear ends of the guide rod 9; in order to stabilize the guiding direction, the guide positioning wheels 25 are symmetrically arranged, and the groove parts of the two guide positioning wheels 25 are respectively stuck on both sides of the guide rod 9.

[0039] The locking mechanism includes a locking hook 10, a sliding sleeve 11, a mounting column 12, a return spring 19, a traction pulley 13, a pulley shaft 14, a traction rope 15, a pedal 21 and a pedal seat 22; the mounting column 12 is fixedly installed on the ground of the mobile assembly line 16. In order not to affect the operation of the installation assembly line, the height of the mounting column 12 is lower than the height of the platform column 7 of the vehicle to be installed, so the platform column 7 of the vehicle to be installed carrying the vehicle with the parts to be installed can pass above the mounting column 12.

[0040] On the automobile parts installation production line, a plurality of sets of vehicle platform columns 7 for installation are arranged, and a vehicle platform cross beam 8 for installation is also arranged on the top of the vehicle platform columns 7 for installation, and a vehicle frame to be installed is hoisted on the vehicle platform cross beam 8 by a hoisting device, and the vehicle platform columns 7 for installation are arranged on both sides of a mobile assembly line 16, and the mobile assembly line 16 is an assembly line that is constantly moving forward, and on both sides of the mobile assembly line 16 that is constantly moving forward are installation work surfaces 17, and the installation work surfaces 17 are used for the work needs of workers and for placing parts to be installed on the vehicle body, wherein the installation work surface 17 of the tire installation station is placed with tires, and tools, manipulators and other necessary parts required for tire installation; the installation position of the installation column 12 is deep into the middle of the vehicle platform columns 7 on both sides; the installation position of the installation column 12 is optimal when the monorail vehicle is folded and the upper frame 2 for placing the spare tire is just below the spare tire installation position of the vehicle.

[0041] A sliding sleeve 11 that can slide up and down is arranged in the middle section of the mounting column 12, a locking hook 10 is arranged in front of the sliding sleeve 11, and a traction rope fixing connecting column 18 is arranged behind the sliding sleeve 11; one end of the traction rope 15 is fixed to the traction rope fixing connecting column 18, and the other end is connected to the pedal 21 through the traction pulley 13; in order to enable the locking hook 10 to automatically return to its original position after being released to ensure the next locking, the two ends of the return spring 19 are respectively hung on the return spring upper hook 30 and the return spring lower hook 31, it can be ensured that after release, the locking hook 10 automatically returns to its position under the pull of the spring; in order to facilitate the worker's release operation, a foot pedal is used as a release switch, and the pedal 21 is fixed on the pedal seat 22. The pedal seat 22 is fixed on the ground on the side of the tire placed on the outside of the mobile assembly line 16, so that the worker can step on the pedal 21 after operating the manipulator to grab the spare tire, and then release the lock of the monorail car, and then place the spare tire on the released monorail car, push the monorail car to the rear position of the car where the spare tire is installed, and then install the spare tire. In order not to affect the installation work, the height of the spare tire installation monorail car composed of the lower frame 1, the upper frame 2, and the moving wheel 29, plus the total height of the tire placed on it is less than the height of the bottom surface of the spare tire from the ground after the spare tire is installed on the car.

[0042] Embodiment 2: Working process of the present invention

[0043] On the mobile assembly line 16 of the production line, there are multiple vehicle platform cross beams 8 to be installed, which constitute a parts installation assembly line. On each vehicle platform cross beam 8 to be installed, a vehicle to be installed will be hoisted by a robot. When the mobile assembly line moves to the tire installation station, the worker operates the mechanical device to grab the tire from the installation work surface 17 for tire installation. At this time, the frame mechanism of the monorail car of the present invention is in a folded state when the previous spare tire installation was completed. Therefore, the front end of the monorail car in the folded state is stuck on the locking hook 10. At the same time, the balancer cable 32 of the balancer 5 set at this time is in a pulled out state.

[0044] During operation, one of the workers operates the manipulator to grab a tire and install the spare tire at the rear of the car. First, the worker steps on the pedal 21 set on the ground on the side of the mobile assembly line 16 where the tire is placed. When stepping on the pedal 21, the traction rope 15 is pulled, and then through the traction pulley 13, the traction rope 15 is pulled upward and drives the sliding sleeve 11 to move upward. At this time, the locking hook 10 set on the other side of the sliding sleeve 11 moves upward to leave the locked locking buckle 6, so that the monorail vehicle of the present invention is in a free state. Under the pulling of the balancer 5, the frame mechanism of the monorail vehicle of the present invention is taken away from the position where the spare tire is installed and moves outward, ready to receive the spare tire grabbed by the worker's manipulator and install it. Because the upper frame 2 where the spare tire is placed is just below the spare tire installation position of the vehicle when the spare tire moving device is folded, when the spare tire grabbed by the manipulator is placed on the upper frame 2 of the monorail vehicle, it must be placed in the middle and placed well. After that, the monorail vehicle is pushed forward manually until the locking buckle 6 at the front end is stuck in the locking hook 10. The position where the locking hook 10 and the locking buckle 6 collide has an inclined surface, which is convenient for collision and locking. During the locking process, the groove parts of the guide positioning wheels 25 arranged on both sides of the guide rod 9 are respectively stuck on both sides of the guide rod 9. The front end of the guide rod 9 is fixed on the mounting column 12, so the guide rod 9 cannot move at will and can only be directly moved to the required position; when the monorail vehicle with the spare tire is about to reach the locking position, the front blocking spring 24 provided will have a shock absorbing effect on the monorail vehicle to be locked. When the locking hook 10 and the locking buckle 6 are locked, the return spring 19 will maintain the pulling force to pull downward, so that the locking hook 10 will not move upward, and cause the locking hook 10 to disengage from the locking buckle 6, so as to ensure that the monorail vehicle will not shift during the spare tire installation process. Then, the worker can carry out the spare tire installation operation until a spare tire installation operation process is completed.

Claims

1. A monorail vehicle for installing spare tires on an automobile assembly production line, comprising a frame mechanism, a cable mechanism, a guide mechanism, and a locking mechanism, characterized in that: A. The frame mechanism comprises a lower frame (1) and an upper frame (2), a locking mechanism is installed at the front end of the lower frame (1), a moving wheel (29) is installed on the bottom surface of the lower frame structure, and a balancer (5) and a guide positioning wheel (25) are fixed below the front end cross beam of the lower frame (1); B. The cable mechanism comprises a balancer (5), a balancer cable (32), and a balancer cable fixing column (4), wherein the balancer (5) is fixedly mounted on the lower right side of the front cross beam (33) of the lower frame (1); C. The guide mechanism comprises a guide rod (9), a guide positioning wheel (25), a front blocking spring (24), a rear blocking spring (27), a guide rod support (3), and a guide rod fixing seat (28); one end of the guide rod (9) is fixed to the ground of the mobile assembly line (16) by the guide rod support (3) and the guide rod fixing seat (28), and the other end is fixedly connected to the mounting column (12) of the locking mechanism after passing through the guide positioning wheel (25) fixed on the front cross beam (33) of the lower frame (1); D. The locking mechanism comprises a locking hook (10), a sliding sleeve (11), a mounting column (12), a return spring (19), a traction pulley (13), a pulley shaft (14), a traction rope (15), a pedal (21) and a pedal seat (22); the mounting column (12) is fixedly mounted on the ground of the mobile assembly line (16); a sliding sleeve (11) which can slide up and down is arranged in the middle section of the mounting column (12); a locking hook (10) is arranged in front of the sliding sleeve (11); a traction rope fixing connecting column (18) is arranged in the back of the sliding sleeve (11); one end of the traction rope (15) is fixed on the traction rope fixing connecting column (18), and the other end is connected to the pedal (21) through the traction pulley (13).

2. The monorail vehicle suitable for installing spare tires on an automobile assembly production line according to claim 1, characterized in that: The two ends of the return spring (19) are respectively hung on the return spring upper hook (30) and the return spring lower hook (31).

3. The monorail vehicle suitable for installing spare tires on an automobile assembly production line according to claim 1, characterized in that: The pedal (21) is fixed on a pedal seat (22), and the pedal seat (22) is fixed on the ground on the side of the outer side of the mobile assembly line (16) where the tires are placed.

4. The monorail vehicle suitable for installing spare tires on an automobile assembly production line according to claim 1, characterized in that: The height of the installation column (12) is lower than the height of the vehicle platform column (7) to be installed. The vehicle platform column (7) to be installed is installed on both sides of the mobile assembly line (16). The installation position of the installation column (12) is deep in the middle of the vehicle platform column (7) to be installed on both sides.

5. The monorail vehicle suitable for installing spare tires on an automobile assembly production line according to claim 1, characterized in that: The height of the spare tire installation monorail vehicle composed of the lower frame (1), the upper frame (2), and the movable wheels (29), plus the total height of the tire placed thereon, is less than the height of the bottom surface of the spare tire from the ground after the spare tire is installed on the car; the length of the upper frame (2) is shorter than the length of the lower frame (1).

6. The monorail vehicle suitable for installing spare tires on automobile assembly production lines according to claim 1, characterized in that: The position of the upper frame (2) in the folded state is directly below the installation position of the spare tire of the vehicle to be installed.

7. The monorail vehicle suitable for installing spare tires on an automobile assembly production line according to claim 1, characterized in that: The locking buckle (6) of the locking mechanism is fixed in the middle of the front crossbeam (33) of the lower frame (1); the pull-out end of the balancer cable (32) is fixed on the balancer cable fixing column (4).

8. The monorail vehicle suitable for installing spare tires on an automobile assembly production line according to claim 1, characterized in that: A rear blocking spring (27) and a front blocking spring (24) are respectively arranged at the front and rear ends of the guide rod (9).

9. The monorail vehicle suitable for installing spare tires on an automobile assembly production line according to claim 1, characterized in that: The guide positioning wheels (25) are symmetrically arranged. The two guide positioning wheels (25) are arranged on the front cross beam (33) by a guide positioning wheel pin shaft (34). The two guide positioning wheels (25) are rotatably arranged on the positioning wheel pin shaft 34. The lower ends of the two guide positioning wheels (25) are fixed by a positioning wheel pin shaft nut (35).

10. The monorail vehicle suitable for installing spare tires on an automobile assembly production line according to claim 1, characterized in that: The groove parts of the guide positioning wheel (25) are respectively clamped on the two sides of the guide rod (9).

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