JPH0633054B2 - Car assembly equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an assembling apparatus for assembling parts to a vehicle body after a painting process in an automobile assembly production line.

(Prior Art) Conventionally, as an assembly device for an automobile of this type, as disclosed in, for example, Japanese Patent Laid-Open No. 53-8884, the door is once removed from the vehicle body on which the painting has been completed, and On the other hand, a so-called door-retrofitting system is known in which parts are separately assembled and then a door is attached to the vehicle body so that the parts can be easily assembled.

In such an assembling apparatus, normally, the door removed from the vehicle body is sequentially conveyed to the door assembling line in a suspended state by a door conveying device including an overhead conveyor and a hanger, and the door assembling parts are mounted on the door assembling line. After the assembly is completed, it is conveyed to the door mounting portion of the vehicle body assembly line.

By the way, in the case of such an assembling apparatus, the time from the removal of the door from the vehicle body to the completion of the assembling of the parts on the assembly line until they are conveyed to the door attachment portion of the assembly line, and the door It must be the same as the time it takes for the product to be transported from the vehicle body to the door attachment section of the vehicle body assembly line via the door assembly line. However, the number of parts assembled to the car body is significantly larger than the number of parts assembled to the door, and the time for assembling parts on the car body assembly line is not comparable to that time on the door assembly line. It takes a long time. Therefore, in the above-mentioned publication (Japanese Patent Laid-Open No. 53-8884), the door whose components have been assembled on the door assembly line is temporarily stored in the storage tower, and if necessary, the above-mentioned door is stored from the storage tower. The door is taken out and conveyed to the door mounting portion of the vehicle body assembly line.

(Problems to be solved by the invention) However, in this case, since the storage tower stores the door in which the assembly of the parts is completed, the storage load becomes very large, and it is necessary to make it structurally strong. There is a problem that the equipment cost is high.

In addition, when the door transport device is composed of an overhead conveyor and a hanger, the total number of hangers increases, so the load acting on the building via the overhead conveyor becomes large, and from this point also the equipment cost becomes high. Become. There is also a problem that noise becomes loud.

Furthermore, when assembling the parts to the door suspended and supported by the hanger, the parts cannot be easily assembled due to the shaking of the hanger.

The present invention has been made in view of the above points, and an object of the present invention is to store a door removed from a vehicle body before transferring it to a door assembly line, and to store a door transfer device at a place of use. By appropriately selecting the storage load and the load acting on the building as much as possible to reduce the equipment cost, reduce the noise and simplify the work of assembling the parts to the door. It is intended to be possible.

Further, an object of the present invention is to reduce the equipment space by storing the above-mentioned door in a state that it does not take up space depending on the type of door.

(Means for Solving the Problems) In order to solve the above-mentioned object, a solution means of the present invention is to remove a door from a vehicle body on which painting is completed, and assemble parts separately to the vehicle body and the door. As an assembling device for an automobile in which a door is attached to the vehicle body,
The configuration is as follows.

That is, a removal door transport device for transporting a door removed from the vehicle body, a first door transfer device for transporting the door from the removal door transport device in a state in which the door is erected on a support stand, and the first door transfer device installed on the floor, A plurality of door storage devices for transferring the doors, which are transferred from the first door transfer device and supported on the support base by type together with the support base, and an entrance portion and an exit portion of the door storage device, respectively. A door storage / removal control device provided for controlling the storage and removal of the door according to the type of the door; a door assembly line for assembling parts to the door on the support table sent from the door storage device; An assembly in which the assembly of the components is completed on the door assembly line is transferred from the support base by the second door transfer device, and the door is transferred to the door mounting portion of the assembly line of the vehicle body. And a A conveying device. Further, both the detachable door transfer device and the assembled door transfer device are composed of a self-propelled traveling vehicle that travels on an overhead rail and a hanger that is attached to the traveling vehicle to suspend and support the door.

Here, for example, in the case of a four-door vehicle, the plurality of door storage devices are provided in a vertical arrangement relationship according to types of front doors and rear doors and a lateral arrangement relationship according to types of right doors and left doors. It is preferable that each of the doors is stored so that it can be sent out while being supported on the support stand, from the viewpoint of narrowing the installation space and simplifying the storage and removal of the door.

(Operation) With the above configuration, in the present invention, since the door removed from the vehicle body is stored in the door storage device before being transferred to the door assembly line, the door is more stored than the case where the door after the parts are assembled is stored. The load acting on the storage device, that is, the storage load is reduced. Moreover,
This storage load is supported on the floor via the door storage device and does not act on the building. Further, the storage state of the door in the door storage device is made in a state in which the door is supported on the support base and is divided according to the type of the door so as not to take up a space, so that the installation space can be small.

Further, a door transfer device used in a place where the door is simply transferred, that is, a detachable door transfer device and an assembled door transfer device are composed of a self-propelled traveling vehicle that travels on an overhead rail and a hanger that suspends and supports the door. Since the doors can be efficiently transported, the total number of traveling carriages and hangers required for the door transportation is small, and the load acting on the building via the overhead rails is small. In addition, the noise generated by the movement of the hanger is reduced.

On the other hand, in a door assembly line in which a door is assembled while parts are assembled to the door, the door is conveyed while it is erected on a support table. Assembly can be performed in a stable state.

(Example) Hereinafter, the Example of this invention is described based on drawing.

1 to 4 show an assembling apparatus for a four-door vehicle according to an embodiment of the present invention, in which reference numeral 1 denotes a vehicle body transporting conveyor for transporting a vehicle body coated in a painting process. Are arranged over a long distance in a meandering state, and a door removing station 2 for removing the door from the vehicle body on the conveyor 1 is provided on the upstream side (the side closer to the coating process) of the meandering state.
On the downstream side, a door mounting station for mounting a door whose components have been assembled in a door assembly line 26, which will be described later, to the vehicle body on the conveyor 1 in a state where the door is removed. 3 is provided. Further, between the door removing station 2 and the door mounting station 3 of the vehicle body conveyor 1, the conveyor 1 is provided.
A plurality of component mounting stations (not shown) for respectively mounting various components such as interior components (for example, instrument panel) and seats on the upper body of the vehicle are provided along the conveyor 1. A vehicle body assembly line 4 for assembling components to the vehicle body is constituted by the component assembly station and the vehicle body conveyor 1.

Reference numeral 5 denotes a removable door transporting device for mounting the door removed from the vehicle body at the door removing station 2 and carrying it by self-propelled to the door storage device 10 side, which will be described later. An overhead rail 7 supported by a ceiling beam 6, and the overhead rail 7
It is composed of a so-called self-propelled electric train conveyor equipped with a self-propelled traveling carriage 8 that travels above and a hanger 9 that is attached to the traveling carriage 8 and suspends and supports the door a.

Further, 10 is a framework for a door storage device that stores the door removed from the vehicle body for a predetermined time, and is installed on the floor. In the frame 10, four door storage devices 11, 11, ... Each consisting of a pair of left and right belt conveyors are arranged in upper and lower two stages, and the entrance side of the door storage device 11 (the traveling direction of the belt conveyor). On the upstream side), two sets of first door transfer devices 12, 12 and door storage control devices 13, 13 are installed corresponding to the left and right door storage devices 11, 11. Each of the door storage control devices 13 has a mounting table 14 composed of a belt conveyor, and the mounting table 14 extends from the floor reference line 1 position to the upper door storage device 11 position through the lower door storage device 11 position. It is installed so that it can move up and down. In addition, each of the first door transfer devices 12 includes the support 15
After having received the door a from the hanger 9 of the detachable door transfer device 5, the door holding member 17 has an elevating member 16 that moves up and down along the door, and a door holding member 17 attached to the elevating member 16. The elevating member 16 descends, and the door a is positioned and mounted in an upright state on a support table 18 that has been previously transferred onto the mounting table 14 of the door storage control device 13. There is.

Here, the first door transfer device 12, 12 and the door storage control device 13, 13 are controllers (not shown) having a determination means for determining the type of the door a conveyed by the detachable door conveying device 5. When the door a is a light door, the first door transfer device 12 on the right side as viewed in the traveling direction of the door storage device 11 operates to remove the door a. On the other hand, when the door a is a left door, the first door transfer device 12 on the left side is activated to move the door a from the removal door transfer device 5 to the support base 18 while the door a is transferred to the support base 18. It is supposed to be posted. In addition, the door storage control device 13,
13 receives the door a from the corresponding first door transfer device 12 at the position of the upper door storage device 11 via the support base 18 on the mounting base 14, and when the door a is a rear door, the support base 13 is directly supported. While the door a supported on 18 is transferred to the upper door storage device 11,
When the door a is a front door, the mounting table 14 is lowered to the position of the lower door storage device 11 and then the supporting table 18 is provided.
The door a supported above is used as the lower door storage device 1
It is designed to be transferred to 1. When the door a is transferred from the hanger 9 of the detachable door transfer device 5 to the door holding member 17 of the first door transfer device 12, the hanger 9 is a cylinder provided on the ceiling of the frame 10 for the door storage device. The door storage device 11 side, that is, the first door transfer device 1 by the hanger tilt device 20 including
It is tilted in the direction away from 2, so that the door a can be transferred onto the support base 18 without interfering with the hanger 9.

On the other hand, each of the door storage devices 11 transfers the door a supported on the support table 18 transferred from the door storage control devices 13 and 13 to the exit side (downstream side in the traveling direction of the belt conveyor). The support base 18 is stopped by a stopper (not shown) near the outlet side to store the door a while the door a remains on the support base 18, and after a predetermined time elapses, the support base 1 is sequentially operated by the stopper.
8 is released, the door a is placed on the support 18 and is delivered from the exit. The delivery of the door a may be performed by intermittently driving the belt conveyor. The storage state of the door a in each of the four door storage devices 11, 11, ... Is determined by the first door transfer device 12, 12 and the door storage control device 13, 13 controlled by the controller as described above. By being transferred to the entrance side of each door storage device 11, the rear right door is on the upper right door storage device 11, the rear left door is on the upper left door storage device 11, and the lower right door storage device. 11
The front right door is arranged in the front left door, and the front left door is arranged in the lower left side door storage device 11. Also, each of the above door storage devices 1
In FIG. 1, the surfaces of the doors a are parallel to each other at right angles to the traveling direction, and the front and rear end positions of the doors a are stored by a guide member (not shown) that guides the support bases 18. The door a stored in this state can be delivered from the exit side of each door storage device 11 in the direction perpendicular to the surface thereof.

Further, two sets of door take-out control devices 21 and 21 and door direction changing devices 22 and 22 are installed on the exit side of the door storage devices 11, 11, ... Corresponding to the left and right door storage devices 11, 11. Has been done. Each of the door take-out control devices 21 has a mounting table 23 composed of a belt conveyor, and the mounting table 23 is the lower door storage device 11
It is configured to move up and down between the position and the upper (door storage device) 11 position and to control the taking out according to the type of the door a sent from the door storage device 11, that is, the front door and the rear door. ing. Further, each of the door direction changing devices 22 has two upper and lower turntables 24, 24 respectively arranged at the lower door storage device 11 position and the floor reference line 1 position. Device 1
1 through the door take-out control device 21, the door a supported on the support base 18 has the same longitudinal direction as the advancing direction of a door assembly line 26 described later and the door a.
It is configured so that it is rotated 90 degrees so that the inner surface side faces outward, and thereafter, it is delivered to the door assembly line 26.

In addition, 25 and 25 are the door storage devices 11 and 1
1. A pair of left and right door assembly line conveyors provided corresponding to the left and right door storage devices 11 and 11 on the exit side extension lines of 1, ..., Each of the conveyors 25 being the lower door storage device 11 respectively. Support 18 placed in position and delivered from the door direction changing device 22
Each of the doors a supported above is sequentially conveyed. In addition, a plurality of parts assembling stations (not shown) for assembling parts such as door trims to the doors a on the conveyors 25 are provided along the conveyors 25 on the sides of the conveyors 25, 25. The parts assembling station and the two conveyors 25, 25 constitute a door assembling line 26 for assembling parts to the door. The door assembly line 26 is so short that it cannot be compared with the vehicle body assembly line 4 due to the difference in the number of parts to be assembled.

Further, 27 is an assembly door transfer device for automatically moving the door transferred at the door transfer station 28 of the door assembly line 26 to the door mounting station 3 of the vehicle body assembly line 4, The device 27 is similar to the detachable door transfer device 5 in that the overhead rail 2
9, a traveling carriage 30, and a hanger 31. In the door transfer station 28, the door a, on which the parts have been assembled on the door assembly line 26, is installed outside the conveyors 25, 25 of the door assembly line 26 from the support base 18 to the hanger 31 of the assembly door transfer device 27. Left and right second door transfer device 3 transferred to
2, 32 are installed, and each of the second door transfer devices 32 is installed.
Although not shown in detail in the figure, the first door transfer device 12
Is configured similarly to.

Reference numeral 33 is a lifter device provided in the door transfer station 28 of the door assembly line 26 corresponding to each door assembly line conveyor 25. The lifter device 33 has a mounting table 34 composed of a belt conveyor. , The mounting table 34 is
It is provided so as to be vertically movable between a floor reference line 1 position and a door assembly line conveyor 25 position. Also, 35
And 36 are empty supporter transfer conveyors disposed below the respective conveyors 25 of the door assembly line 26 or below the lower door storage device 11 on the floor reference line l, respectively. Device 33
With the above, while the door a is taken out at the door transfer station 28 of the door assembly line 26 and the support base 18 which is in an empty state is rotated by 90 degrees on the turntable 24 below the door direction changing device 22. It is configured to be transferred onto the mounting table 14 of the door storage control device 13.

Next, the operation of the assembling apparatus of the above-described embodiment will be described. The vehicle body, which has been painted in the painting process, is first conveyed to the door removing station 2 by the vehicle body conveyor 1, and at the door removing station 2, the door is removed from the vehicle body. Removed. Then, the vehicle body with the door removed is sequentially conveyed to each component assembly station on the vehicle body assembly line 4 to assemble the components, and after the assembly of the components is completed, the door attachment station 3 Be transported to.

On the other hand, the door a removed from the vehicle body at the door removal station 2 is first transported to the entrance side of the door storage device 11 by the removal door transport device 5, and then the first door transfer device 12 and The door storage control device 13 supports the door storage device 11 in an upright state on the support table 18, transfers the door storage device 11 and stores the door storage device 11 for a predetermined time.

At this time, the door a is stored in the four door storage devices 11, 11, ... By type. Specifically, the front left door is the lower left door storage device 11, the front right door is the lower right door storage device 11, the rear left door is the upper left door storage device 11, and the rear right door is The data is stored in the door storage device 11 on the upper right side. Further, in each of the door storage devices 11, the surfaces of the doors a are stored in a state that they are parallel to each other in the direction perpendicular to the traveling direction of the door storage device 11 and their front and rear end positions are substantially aligned.

Then, after being stored for a predetermined time in each of the door storage devices 11, the door a supported on the support base 18 is temporarily moved together with the support base 18 from the exit of the door storage device 11 by the door take-out control device 21 by the door direction changing device. 22 is transferred onto the turntable 24 on the upper side of 22 and is rotated by 90 degrees in the door direction changing device 22, and then transferred onto the door assembly line 26 in the same direction as the traveling direction of the door a. It On the door assembly line 26, the door a is sequentially conveyed to each component assembly station to assemble the components.

Next, the door a, on which the components have been assembled on the door assembly line 26, is transferred from the support 18 to the assembled door transfer device 27 by the second door transfer device 32 at the door transfer station 28 of the door assembly line 26. It is transferred and transferred by the assembly door transfer device 27 to the door mounting station 3 of the vehicle body assembly line 4.

Here, the door a in each of the above door storage devices 11
The storage time of is the time from when the door is removed from the vehicle body at the door removal station 2 to when the vehicle body completes the assembly of parts on its assembly line 4 and is transported to the door attachment station 3, It is set so that the time from the door removing station 2 to the door mounting station 3 via the door assembly line 26 is the same. Then, the door is attached to the vehicle body at the door attachment station 3 to complete the assembly of the parts to the vehicle body which has been painted.

Therefore, in the assembly apparatus of the above embodiment, the door a removed from the vehicle body is stored in the door storage device 11 before being conveyed to the door assembly line 26. The load acting on the door storage device 11, that is, the storage load is smaller than that. Moreover, since this storage load is supported on the floor via the door storage device 11 and the frame 10, it does not act on the building,
The equipment cost can be reduced accordingly. Further, during the storage, since each door a is supported on the support base 18, the doors a do not sway and interfere with each other, and the storage can be safely performed.

In addition, the storage state of the door a in the door storage device 11 is as follows.
The door storage devices 11, 11, ... Are classified according to the type of door, that is, the front door and the rear door are arranged in the vertical direction, and the right door and the left door are arranged in the horizontal direction. Since it is in an upright state via the support base 18 on the upper side, when storing a predetermined number of doors, the door straight device 11, 1 is used.
1, ... The whole is integrated, so that the installation space and thus the installation space of the entire assembling apparatus can be reduced. In particular, when the surfaces of the doors a are stored on the door storage devices 11 in parallel with each other in the direction perpendicular to the direction of travel as in the above embodiment, the installation space can be further narrowed. It is very advantageous for doing.

Further, the door transfer device used in a place where the door a is simply transferred, that is, the detachable door transfer device 5 and the assembled door transfer device 27 are the self-propelled carriages 8 and 30 that travel on the overhead rails 7 and 29. Since the door a and the hangers 9 and 31 for suspending and supporting the door a can be efficiently transported, the total number of the traveling carriages 8 and 30 and the hangers 9 and 31 required for the door transportation. Can be reduced. As a result, the load acting on the ceiling beam 6 of the building through the overhead rails 7 and 29 can be reduced, and the equipment cost can be further reduced. Also, noise generated by movement of the hangers 9 and 31 can be reduced.

On the other hand, in the door assembly line 26 for assembling parts to the door a while conveying the door a, the door a is supported by the support base 18
Since it is designed to be transported while standing up,
Assembling of parts to the door a in this assembly line can be performed in a stable state, and the assembling work can be simplified and speeded up. Also, the door storage device 1
When the doors 1 are transferred from the door assembly line 26 to the door assembly line 26, the doors a are transferred while being supported on the support base 18, and operations such as transfer and the like are unnecessary, so that the work can be speeded up more.

The present invention is not limited to the above-mentioned embodiments, but includes various other modified examples. For example, in the above-described embodiment, when the doors a are stored according to their types in the four door storage devices 11, 11, ... Which are arranged in a pair of left and right in upper and lower stages, the front side of the door storage device 11 on the lower left side is stored. The left door, the lower right door storage device 11 stores the front right door, the upper left door storage device 11 stores the rear left door, and the upper right door storage device 11 stores the rear right door. Of course, in the present invention, the arrangement relationship between the front door and the rear door or the arrangement relationship between the left door and the right door may be reversed. Also, four door storage devices 11,
As for the arrangement state of 11, ..., In addition to arranging a pair of right and left in the upper and lower two stages as in the above embodiment, four door storage devices 11, 11, ... Are arranged in the upper and lower four stages, Alternatively, one stage may be arranged in parallel to four. Particularly, in order to reduce the installation space, it is preferable to arrange the door storage devices 11, 11, ...

Further, it goes without saying that the door transfer devices 5 and 27 for transferring the door a are not limited to the self-propelled electric train type conveyors as in the above embodiment, and other ceiling-suspended type conveyors may be used.

(Effects of the Invention) As described above, according to the vehicle assembly apparatus of the present invention, the door removed from the vehicle body is stored in the door storage apparatus before being transferred to the door assembly line, so the storage load can be reduced. And moreover,
The storage load is supported on the floor via the door storage device and does not act on the building. As a result, the structure of the door storage device and the building can be simplified, and the equipment cost can be reduced.

In addition, since the storage state of the door in the door storage device is divided according to the type of door, the installation space can be reduced, which is advantageous in implementation.

Further, the door transfer device used only for the transfer of the door is configured by a self-propelled carriage that travels on an overhead rail and a hanger that suspends and supports the door, so that the door can be transferred efficiently. As a result, the total number of traveling carriages and hangers required for door transportation can be reduced, the load acting on the building can be reduced, and the facility cost can be reduced, and noise can be reduced. be able to. On the other hand, in the door assembly line,
Since the door is conveyed while standing upright on the support base, it is possible to assemble the parts to the door in a stable state, and it is also possible to simplify and speed up the assembly work. is there.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a member layout view showing the overall construction of an assembly device, FIG. 2 is a side view of a door storage device portion, and FIG. 3 is an outlet part of the door storage device. FIG. 4 is a side view of the door transfer station portion of the door assembly line. 3 ... door mounting station, 4 ... body assembly line, 5 ... remove door carrier, 7,29 ... overhead rail, 8,30 ... self-propelled traveling cart, 9,3
1 ... Hanger, 11 ... Door storage device, 12 ...
... first door transfer device, 13 ... door storage control device, 18
...... Support stand, 21 ...... Second door take-out control device, 26 ...
... Door assembly line, 27 ... Assembly door transport device, 32 ...
… Second door transfer device.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display location B65G 47/61 D 8010-3F

Claims (2)

[Claims] 1. An assembly apparatus for an automobile, wherein a door is removed from a vehicle body on which painting has been completed, parts are separately attached to the vehicle body and the door, and then the door is attached to the vehicle body. A detachable door transporting device for transporting the door removed from the vehicle body, a first door transporting device for transporting the door from the detachable door transporting device in a state where the door is erected on a support base, and the first door transfer device installed on the floor. A plurality of door storage devices, each of which is transferred from the door transfer device and supported on the support base, stores the doors together with the support base by type, and the door storage device is provided at an entrance and an exit, respectively. , A door storage / removal control device that controls the storage / removal of the door according to the type of the door, and parts are attached to the door on the support table sent from the door storage device A door assembly line, the door component assembly has been completed with the door assembly line second
An assembly door transfer device that transfers the door to a door attachment portion of an assembly line of the vehicle body is transferred from a support by a door transfer device, and the removal door transfer device and the assembled door transfer device are both
A self-propelled carriage that travels on overhead rails,
An assembling apparatus for an automobile, comprising: a hanger that is attached to the traveling carriage and suspends and supports a door. 2. A plurality of door storage devices are provided in a vertical arrangement relationship according to types of front doors and rear doors and in a lateral arrangement relationship according to types of right doors and left doors, and each door is on a support table. The vehicle assembling apparatus according to claim (1), which is configured to be stored so as to be sent out while being supported by the vehicle.