JP2004175250A - Device and method for installing under-floor parts of body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an installing device capable of efficiently installing under-floor parts of a body and making the line as short as possible. <P>SOLUTION: In the figure at the right end, a carriage 9, a support jig 6 supported by a lift arm 17, and a supporting body 4 are shown in the position relationship of the vertical direction. A motor 5 of a lift device 2 is driven for raising the supporting body 4 from a lowering end. The supporting body 4 receives the support jig 6 from the lift arm 17 by inserting the pin 6a of the support jig 6 supported by the lift arm 17 at the lowering end into an insertion hole 4a. The supporting body 4 rises further to receive the body from the carriage 9 onto a protective material 7 of the support jig 6 and reaches a rising end. Then, the carriage 9 is set back and the under-floor parts are installed on the body. After that, the motor 5 is driven for lowering the supporting body 4 from the rising end toward the lowering end, and the support jig 6 carrying the body is transferred from the supporting body 4 to the lift arm 17. Then, the lift arm 17 moves forward, reaches the advancing end, and descends from the rising end toward the lowering end for transferring the body from the support jig 6 onto a slat conveyor. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an apparatus and a method for assembling undercarriage parts such as piping, wiring, and suspension to a vehicle body.
[0002]
[Prior art]
When assembling parts to the car body, for lower parts such as piping, wiring or suspension, perform the assembling work with the car body suspended by an overhead conveyor, and for doors and seats, put the car body on a slat conveyor (floor conveyor). Is being carried out with the. (Patent Document 1, Patent Document 2)
[0003]
In Patent Literature 1, an inspection unit is provided at an end of each zone where a vehicle body is transported by an overhead conveyor or a slat conveyor in a state where the vehicle is stopped.
Further, in Patent Literature 2, transfer of a vehicle body between each assembly zone, that is, between an overhead conveyor and a slat conveyor, is performed using a drop lifter.
[0004]
(Patent Document 1) JP-A-2000-85649 (Patent Document 2) JP-A-2002-60052
[Problems to be solved by the invention]
As described above, in the related art, the undercarriage is performed while the vehicle body is suspended by the overhead conveyor. However, transferring a vehicle body between an overhead conveyor and a slat conveyor requires a large-scale transfer device, which not only increases the cost, but also increases the line length and the occupied area by the large-scale transfer device. Great.
In the case of an overhead conveyor, a rail must be laid on the ceiling, and a structure that can support the weight of the vehicle body is required.
[0006]
Normally, when assembling lower parts using an overhead conveyor, assembling work is performed while an operator moves in accordance with the traveling speed of the conveyor, so that workability is poor.
[0007]
[Means for Solving the Problems]
In order to solve the above problems, the present invention includes a lift device and a transfer device as an assembling device for a vehicle body lower part which is mounted on a vehicle body conveyed by a trolley from an upstream side and then sent downstream. The lift device receives the vehicle body from the trolley at the carry-in position and raises the body as it is to the assembling work position, and the transfer device reciprocates between the carry-in position and the carry-out position while supporting the vehicle body from below, and descends. As a result, the vehicle body was transferred to the slat conveyor.
[0008]
Further, a vehicle body support jig is provided separately from the lift device and the transfer device, and the vehicle body can be efficiently transferred by sharing the vehicle body support jig with the lift device and the transfer device.
[0009]
Further, a specific configuration of the transfer device includes, for example, a lift arm provided to be movable up and down with respect to a traveling body movable along a frame, and a lower end of the lift arm is supported by a rail that moves up and down. Configurations are possible.
[0010]
Further, the method of assembling the lower part of the vehicle body according to the present invention includes stopping the bogie that has conveyed the vehicle body from the upstream side at the loading position, lifting the vehicle body to the working position by the lift device at this position, and retreating the bogie. The operator enters the lower part of the vehicle body and assembles the lower parts, then positions the transfer device reciprocating between the carry-in position and the carry-out position below the vehicle body, and lowers the vehicle body or raises the transfer device to lift the device. Then, the vehicle body is transferred to the unloading position by the transfer device, and then the transfer device is lowered to place the vehicle body on the slat conveyor.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is an overall perspective view of an assembling apparatus for a vehicle body lower part according to the present invention, FIG. 2 is a front view of the assembling apparatus, FIG. 3 is a plan view of the assembling apparatus, and FIG. FIG. 5 and FIG. 5 are side views in the direction B in FIG.
[0012]
In a device for assembling components below the vehicle body, a pair of frames 1 is arranged along the direction of conveyance of the vehicle body, and a lift device 2 is arranged outside the frame 1 at the vehicle body carry-in position. The lift device 2 has a U-shaped support 4 attached to the support 3 so as to be able to move up and down, and the motor 5 mounted on the upper part of the support 3 is driven to move the support 4 up and down. Although the motor 5 is attached to only one of the columns in the drawing, the motor 5 is actually attached to both columns 3.
[0013]
An insertion hole 4a is formed at the tip of the support 4, and a pin 6a of a support jig 6 for supporting the vehicle body from below is fitted into the insertion hole 4a. The support jig 6 has a bar shape. Protective members 7 for preventing the vehicle body from being damaged are provided on both front and rear ends, and the pins 6a are provided on arms 8 protruding outward.
[0014]
The distance between the left and right support jigs 6 is set to be larger than the width of the bogie 9 that carries the vehicle body to the vehicle body carry-in position. Receive.
[0015]
The cart 9 is provided with casters 10, and the cart 9 moves on the floor with the vehicle body mounted thereon. Incidentally, the floor line is located higher than the frame 1.
[0016]
A rail 11 is provided at the upper end of the frame 1, and a chain guide 12 is provided in parallel with the rail 11. A driving sprocket 14 rotated by a motor (geared motor) 13 is provided at one end of the chain guide 12. The driven sprocket 15 is disposed at the other end.
[0017]
A traveling body 16 is engaged with the rail 11, and a part of the traveling body 16 is connected to a chain in the chain guide 12. A lift arm 17 is supported on a portion of the traveling body 16 inside the frame 1 so as to be slidable in the vertical direction. In this embodiment, a total of four lift arms 17 are used. The traveling body 16 and the lift arm 17 constitute a transfer device.
[0018]
A caster 18 is attached to a lower end of the lift arm 17, and the lift arm 17 is supported on a rail 19 via the caster 18. The rail 19 is attached to a plurality of link arms 20, and the rail 19 is moved up and down by rotating the link arm 20 near the carrying-in position of the vehicle body with the air cylinder 21. Then, the lift arm 17 also moves up and down by this up and down movement. Further, since the lift arm 17 is supported by the traveling body 16 as described above, the chain is moved by the motor 13 to move along the rail 11 integrally with the traveling body 16. That is, the lift arm 17 performs a crank movement including a reciprocating horizontal movement and a vertical movement along the rail 11.
[0019]
Further, a driven gear 22 of a slat conveyor is disposed substantially at the center of the assembling device. The slat conveyor is not shown because it is complicated, but is arranged to run between the left and right lift arms 17.
[0020]
The operation of the assembling apparatus having the above configuration will be described starting from a state in which the bogie 9 on which the vehicle body is mounted has moved to the vehicle body carry-in position (the right end in FIG. 1). At this point, the lift arm 17 shown is not shown to avoid complication, but the position of the support jig 6 is the position of the support jig 6 at the lower end of the lift arm 17, and the lift The position of the support 4 is the position of the lower end of the support 4. In other words, in terms of the positional relationship in the vertical direction, it means the cart 9-the support jig 6 (supported on the lift arm 17) 6-the support 4.
[0021]
In this state, when the motor 5 of the lift device 2 is driven, the support 4 rises from the lower end, and the pin 6 a of the support jig 6 supported on the lift arm 17 at the lower end is inserted into the insertion hole of the support 4. When inserted into the support 4a, the vehicle body is received from the lift arm 17 and further raised to receive the vehicle body from the carriage 9 on the protection member 7 of the support jig 6 and reaches the rising end.
[0022]
Thereafter, the trolley 9 is retracted, and the worker enters under the vehicle body, and assembles lower parts such as piping, wiring, or suspension to the vehicle body. When the above operation is completed, the lift arm 17 moves up and waits at the rising end.
[0023]
Next, the motor 5 is driven to lower the support 4 from the rising end to the lower end, whereby the support jig 6 on which the vehicle body is placed is transferred from the support 4 to the lift arm 17.
[0024]
Next, the lift arm 17 moves forward, and at the forward end (left end in FIG. 2), the lift arm 17 descends from the rising end to the falling end, and transfers the vehicle body from the support jig 6 to a slat conveyor (not shown). I do. Thereafter, the lift arm 17 retreats from the forward end to the retreat end, returns to the above-described initial state (the right end in FIG. 1), and prepares for the next vehicle body.
[0025]
The above is one cycle process, but the present invention is not limited to this process, and may be, for example, the following cycle.
First, the time point at which the vertical positional relationship is the cart 9-the support jig 6-the support body 4 supported on the lift arm 17 is set as the starting point. In this state, when the motor 5 of the lift device 2 is driven, the support 4 rises from the lower end, and the pin 6 a of the support jig 6 supported on the lower end lift arm 17 is inserted into the insertion hole 4 a of the support 4. , Is received from the lift arm 17, and further rises to retreat the trolley 9, thereby assembling lower parts such as piping, wiring, and suspension to the vehicle body.
[0026]
When the assembly is completed, the motor 5 is driven to lower the support 4 from the upper end to the lower end, and the support jig 6 in which the vehicle body is placed on the lift arm 17 waiting at the lower end is delivered. Then, the lift arm 17 is raised to the rising end, and in this state, the lift arm 17 advances, and thereafter, the above operation is repeated.
[0027]
【The invention's effect】
As described above, the assembling apparatus for undercarriage parts according to the present invention includes a lift device and a transfer device, and the lift device receives the vehicle body from the bogie at the carry-in position and rises as it is to the assembling work position. At least, the transfer device reciprocates between the carry-in position and the carry-out position while supporting the vehicle body from below, and descends to deliver the vehicle body to the slat conveyor. It becomes a work position, and the device for transfer does not occupy the area only for transfer, and there is no disadvantage that the assembly line becomes long.
[0028]
In addition, when assembling the lower parts using an overhead conveyor as in the related art, the assembling work must be performed while the operator also moves according to the traveling speed of the conveyor, but according to the present invention, the assembly is stopped. The work efficiency can be improved because the assembling work can be performed on the vehicle body.
[Brief description of the drawings]
1 is an overall perspective view of an assembling apparatus for a vehicle body lower part according to the present invention; FIG. 2 is a front view of the assembling apparatus; FIG. 3 is a plan view of the assembling apparatus; Side view [FIG. 5] Side view in B direction of FIG. 2 [Description of reference numerals]
DESCRIPTION OF SYMBOLS 1 ... Frame, 2 ... Lifting device, 3 ... Post, 4 ... Support, 4a ... Insertion hole, 5 ... Motor, 6 ... Support jig, 6a ... Pin, 7 ... Protective material, 8 ... Arm, 9 ... Dolly, Reference Signs List 10: caster, 11: rail, 12: chain guide, 13: motor, 14: drive sprocket, 15: driven sprocket, 16: traveling body, 17: lift arm, 18: caster, 19: rail, 20: link arm, 21: air cylinder, 22: driven gear of slat conveyor.

Claims (4)

This is a device for assembling the lower part of the vehicle body, which is mounted on the vehicle body conveyed by the bogie from the upstream side and then sent to the downstream side. This assembling device receives the vehicle body from the bogie at the carry-in position and performs the assembling work as it is And a transfer device that reciprocates between the carry-in position and the carry-out position while supporting the vehicle body from below, and transfers the vehicle body to the slat conveyor by descending. For assembling parts below the car body. The apparatus for assembling underbody parts according to claim 1, wherein the assembling apparatus includes a body support jig shared by the lift device and the transfer device. 3. The apparatus for assembling underbody parts according to claim 1, wherein the transfer device includes a lift arm provided to be movable up and down with respect to a traveling body movable along a frame, and a lower end of the lift arm. Is a device for assembling the lower part of a vehicle body, which is supported by a rail that moves up and down. Stop the truck carrying the car body from the upstream side at the loading position, lift the car body to the working position by the lift device at this position, retreat the bogie, attach the lower parts to the car body, and then move the carrying position below the car body Position the transfer device that reciprocates between the unloading position, lower the vehicle body or raise the transfer device, transfer the vehicle body from the lift device to the transfer device, transfer the vehicle body to the unloading position by the transfer device, and then A method of assembling undercarriage parts, comprising lowering a transfer device and placing a vehicle body on a slat conveyor.

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