JPH0724331Y2 - Conveyor device for connecting door transportation jigs in automobile assembly lines - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention is a treatment of a rigging line, etc. on each door with the left and right doors removed from the vehicle body attached to a pair of transfer jigs that can be connected to each other. In a car assembly line, in which both doors are dispensed from the treatment line to a post-process after a predetermined treatment is separately performed in the line, both transfer jigs are provided to integrally dispense both doors at a dispense station of the treatment line. Relating to a device for connecting.

(Prior Art) In an automobile assembly line, for example, when each automobile is outfitted, each door is temporarily removed from the vehicle body of each vehicle at a door removal station, and after the vehicle body and each door are individually outfitted. , It is generally known that both are reassembled at the door mounting station,
Each door removed from the vehicle body is transported from the door removal station to the door fitting line, and after the left and right doors are individually transported on the fitting line while being fitted, the door is transported from the fitting line to the door mounting station. To be done.

Conventionally, in this type of assembly line, since it is necessary to outfit the left and right doors separately while transporting them on the door outfitting line, the left and right doors are generally the section from the door removal station to the outfitting line. And the section from the outfitting line to the door mounting station are separately conveyed.

However, in such an assembly line, the number of door transfer paths increases, and a large number of transfer jigs are required to attach each door so that they can be transferred by a conveyor, etc. Therefore, there is a disadvantage that the configuration of the assembly line becomes large. It was

Therefore, the present applicant proposes the following assembly line in order to eliminate such inconvenience.

That is, in this assembly line, the left and right doors removed from the vehicle body are attached to a pair of transfer jigs that are separably connected in the width direction at the door removal station. From the outer station to the loading station of the equipment line, both transfer jigs are arranged in parallel in the width direction on the same conveyor such as a roller conveyor, and are integrally transferred together with both transfer jigs.

Then, after separating the two transfer jigs at the loading station, the left and right doors are individually loaded with the respective transfer jigs on a pair of conveyors such as a shuttle conveyor attached to the outfitting line. The door is outfitted while being transported along with each transport jig on each conveyor.

Then, after the outfitting, at the outfitting station of the outfitting line, each door is paid out from the conveyor together with each transfer jig, while both transfer jigs are reconnected, after which both doors are removed from the outfitting station of the outfitting line. Both transfer jigs are arranged in parallel in the width direction on the same conveyer such as a roller conveyer to the door mounting station, and are integrally conveyed together with both conveyer jigs.

According to such an assembly line, particularly in the front and rear sections of the outfitting line, the left and right doors removed from the vehicle body are integrally transported on the same conveyor via a pair of transport jigs connected to each other. Since the conveyor is configured by a roller conveyor or the like that does not require a return path, the configuration relating to the transportation of each door is miniaturized and the assembly line can be miniaturized.

Further, since both doors are transported from the door removing station to the door mounting station while being attached to the same transport jig, the number of transport jigs required for the assembly line can be reduced.

Thus, according to such an assembly line, it is effective in downsizing the line configuration. And further,
In order to simplify the construction of this assembly line and make it compact, and to efficiently convey the left and right doors removed from the vehicle body from the door removal station to the door attachment station via the equipment line, for example, the delivery of the equipment line. It is desired to have a device which has a simple structure and is capable of efficiently connecting both transport jigs when the both transport jigs are connected to each other at a station and are integrally discharged from the equipment line.

(Problems to be solved) In consideration of such a background, the present invention is designed such that the left and right doors removed from the vehicle body are attached to a pair of transfer jigs that can be connected by making them close to each other in the width direction and juxtaposed to each other. In an automobile assembly line where predetermined processing is individually performed in a processing line such as an outfitting line, and after the processing, both transfer jigs are connected and the product is integrally paid out from the processing line, both transfer operations are performed. It is an object of the present invention to provide a device capable of efficiently connecting a jig with a simple structure.

(Means for Solving the Problem) In order to achieve such an object, the conveyor device for connecting a door transportation jig in an automobile assembly line of the present invention has a structure in which the left and right doors removed from the vehicle body in the automobile assembly line respectively. In addition to being detachably attached, each door in the attached state is subjected to a predetermined treatment in the treatment line provided on the assembly line, and then individually carried out from the treatment line, and brought close to each other in the width direction. A pair of transfer jigs that can be connected by being arranged in parallel are received at the payout station of the processing line, respectively, and both doors are connected while being transferred so that both doors are integrally discharged from the payout station. A device that extends in a predetermined direction at the payout station of the processing line and is stretched in the extending direction. A main conveyor that supports each conveyance jig on a plurality of endless strips and conveys it in the width direction of the conveyance jig, and an upstream part of the main conveyor that extends in a direction orthogonal to the main conveyor and can be raised and lowered. A pair of receiving rollers that float above the endless strip at its raised position, carry in each transport jig in the floating state, and sink to the bottom of the endless strip at its lowered position. One of the receiving roller conveyors located on the upstream side of the main conveyor among the receiving roller conveyors after the conveyor jig is loaded into the receiving roller conveyors in its raised state. A first elevating means for lowering one of the receiving conveyors to the lower side of the endless strip to transfer the transfer jig of the main conveyor to the endless strip of the main conveyor; From the one receiving roller conveyor that is supported When the one conveying jig conveyed to the downstream side of the other conveyer jig on the other receiving roller conveyor on the downstream side approaches in the width direction, the other conveyer jig is conveyed to the main conveyer. Second elevating means for lowering the other receiving roller conveyor to the lower side of the endless strip so as to be supported on the endless strip and a position downstream of the other receiving roller conveyor of the main conveyor. And a locking means for locking the other conveying jig supported on the endless strip of the main conveyor and conveyed downstream from the other receiving roller conveyor, the other conveying The one transport jig, which is transported from the upstream side to the other transport jig in a state where the jig is locked by the locking means, is connected to the other transport jig in close proximity. It is characterized by

Further, at the position where the other conveying jig is locked by the locking means, it is provided on the main conveyor so as to extend in the direction orthogonal to this and to be able to move up and down. On the payout roller conveyor, which floats to the bottom and sinks to the lower side of the endless strip at its descending position, and when the two conveyors are connected in the descending state of the payout roller conveyor. A third elevating means for elevating the payout roller conveyor to the upper side of the endless strip so as to support both the transfer jigs.

(Operation) According to the present invention, in the payout station of the processing line, the pair of transfer jigs are first carried into the respective receiving roller conveyors in the raised state.

Then, of the two receiving roller conveyors, one of the receiving conveyors on the upstream side is lowered together with the one conveying jig supported by the first raising / lowering means. The transport jig is supported on the endless strip of the main conveyor from the one receiving roller conveyor, and after the support, the transport jig of the transport jig is directed toward the downstream side on the endless strip of the main conveyor. It is conveyed in the width direction.

Then, in the course of this transportation, when the one transportation jig approaches the other transportation jig supported on the other receiving roller conveyor on the downstream side, the other lifting jig moves the other transportation jig. The receiving conveyor is lowered together with the other transfer jig supported by the receiving conveyor, and at this time,
Both the transfer jigs are transferred to the downstream side integrally with the endless strips of the main conveyor in a state of approaching in the width direction.

Next, while the other transport jig is locked on the endless strip by the locking means, the one transport jig is further downstream on the endless strip toward the other transport jig. To the side, whereby the two transfer jigs are brought closer to each other and are juxtaposed and connected to each other.

In this case, when the payout roller conveyor and the third elevating means are provided, the third elevating means raises the payout roller conveyor from the lowered state toward both the conveyance jigs, and at this time, the both conveyance treatments are performed. The tool is supported on the payout roller conveyor from above the endless strip, and after that, both the transfer jigs are paid out from the payout roller conveyor.

(Example) An example of the connecting conveyor device of the present invention will be described with reference to FIGS. FIG. 1 is an explanatory perspective view of an essential part of an automobile assembly line constructed by using the connecting conveyor device, FIG. 2 is a plan view of the connecting conveyor device, and FIG. 3 is III- of FIG. A sectional view taken along line III and FIGS. 4 to 6 are explanatory views of the operation of the connecting conveyor device.

In FIG. 1, reference numeral 1 is a painted vehicle body 2 and left and right doors 3R and 3L.
A door removing station 4 for removing the doors 3 and 4 is a processing line for separately mounting the doors 3R and 3L, respectively, and a mounting line 5 for mounting the doors 3R and 3L on the vehicle body 2 again.

In this assembly line, the left and right doors 3R, 3L removed from the vehicle body 2 in the door removing station 1 are first paired in the door removing station 1 with a pair of transfer jigs 6R detachably connected to each other. , 6L can be attached detachably.

Next, both transfer jigs 6R and 6L are attached to the door removal station 1
From the loading station 4 to the loading station 7 of the outfitting line 4 are loaded on a loading conveyor 9 formed by connecting a plurality of roller conveyors 8 and supported on the conveyor 9 in parallel in the width direction. Both doors from the door mounting station 1 to the loading station 7 of the outfitting line 4
Transported with 3R and 3L.

In this case, both doors 3R and 3L are attached to the respective transport jigs 6R and 6L in a vertical posture substantially parallel to their respective transport directions.

The vehicle body 2 from which the doors 3R and 3L are removed is conveyed from the door removing station 1 to the door mounting station 5 via various assembly lines (not shown).

Both transfer jigs 6R, 6 transferred to the loading station 7
Next, L is first separated in the charging station 7 while being conveyed by the separation conveyor device 10, and further, after the separation, from the separation conveyor device 10 via the roller conveyors 11R, 11L to the tables 12R, 12L. On the other hand, each of the doors 3R, 3L is brought into a horizontal position on the table 12R, 12L while being brought in separately on the table 12R, 12L.
The shuttle conveyor 13R for the right door 3R and the shuttle conveyor 1 for the left door 3L, which are attached to the outfitting line 4 from above the R and 12L
It will be put on 3L separately with each door 3R, 3L.

In this case, each shuttle conveyor 13R, 13L supports a plurality of pallets 14 at a predetermined position for intermittent transfer, and each transfer jig 6R, 6L has the pallet in the loading station 7 in the laid-down state. Positioning device on 14.

On the other hand, when loading the transfer jigs 6R, 6L onto the shuttle conveyors 13R, 13L, a pair of parts storages (parts not shown) to be assembled in the doors 3R, 3L are stored in the parts storage station 15. The jigs 16R and 16L are carried into the loading station 7 via the conveyor 17, and each component storage jig
16R and 16L are positioned and placed on the pallet 14 together with the transfer jigs 6R and 6L.

Next, each of the transfer jigs 6R, 6L is
The pallet 14 and each component storage jig 16R, 16L are intermittently transported separately on the shuttle conveyors 13R, 13L, and at this time, the components in each component storage jig 16R, 16L are attached to each door 3R, 3L. Doors 3R and 3L are outfitted.

In this case, when fitting the doors 3R and 3L, the doors 3R and 3L are appropriately tilted together with the transfer jigs 6R and 6L by a tilting device (not shown), and the doors 3R and 3L are suitable for the fitting work. It is properly inclined to the posture.

After such outfitting, the payout station 18 of the outfitting line 4
In contrast to the case of the loading station 7, the transfer jigs 6R and 6L are transferred from the shuttle conveyors 13R and 13L to the tables 19R and 19L, and the doors 3R are again placed on the tables 19R and 19L. , 3L, and then the table 19
It is carried in from above R, 19L to the connecting conveyor device 21 (details will be described later) according to the present invention via the roller conveyors 20R, 20L, and then, while being conveyed by the connecting conveyor device 21, it is connected again.

In parallel with this, each of the component storage jigs 16R, 16L is also dispensed from the shuttle conveyors 13R, 13L, and further returned from the dispensing station 18 to the component storage station 15 via the conveyor 22.

In this case, the transfer jigs 6R and 6L and the component storage jigs 16
Pallet 14 with R and 16L removed is shuttle conveyor 13
It is returned to the loading station 7 of the outfitting line 4 again via the conveyors 23R and 23L provided below the R and 13L.

As described above, in the payout station 18, the re-connected both transfer jigs 6R and 6L are
8 to the door mounting station 5, a connection conveyor device 21 is loaded onto a delivery conveyor 25 formed by connecting a plurality of roller conveyors 24, and is supported on the conveyor 25. In this state, the delivery conveyor 9 In the same manner as in the above case, the sheet is conveyed from the payout station 18 to the door attachment station 5 on the conveyor 25 together with both doors 3R and 3L.

Then, the two transfer jigs 6R, 6L transported to the door mounting station 5 are separated again at the door mounting station 5, and after the separation, together with the doors 3R, 3L,
It is carried into both sides of the vehicle body 2 and then both doors 3R, 3
L is removed from the transfer jigs 6R and 6L and attached to the vehicle body 2.

After that, both the transfer jigs 6R and 6L are reconnected at the door mounting station 5, and a conveyor 27 is formed by connecting a plurality of roller conveyors 26 from the door mounting station 5 to the door removing station 1. It is returned to the door removing station 1 while being supported above.

The transfer jigs 6R, 6 used in such an assembly line
As shown in FIG. 6, the L is basically L-shaped and has a left-right symmetrical configuration. The L supports the lower ends of the doors 3R and 3L on a plate-shaped base 28 and the base 2
The outer surface of the frame 29 erected on the upper surface of the door 8 supports the outer surface of each door 3R, 3L. The configuration relating to the connection of both the transfer jigs 6R, 6L is the pair of mating plates 30 extended from the frames 29, 29 so as to overlap each other in a state where the bases 28, 28 are arranged side by side in the width direction. Connection pins 31 projecting from one of the first and the other 30 toward the other, and a connection hole 32 formed in the other mating plate 30 so that the connection pin 31 can be inserted and removed, and the connection pin 31 is connected. Both transfer jigs 6R and 6L are connected / separated by inserting / removing into / from the hole 32.

That is, when the two transfer jigs 6R and 6L are separated from each other in the width direction from the connected state as shown in FIG. 6, the connection pin 31 is removed from the connection hole 32 and separated, and conversely. When they are brought close to each other in the width direction and are arranged in parallel, the connection pin
31 is inserted into the connection hole 32 and connected. In this case,
The connection hole 32 is a long hole that is vertically long.

Next, the structure of the connecting conveyor device 21 will be described with reference to FIG. 1 and according to FIGS.

In FIGS. 2 and 3, reference numeral 33 denotes the roller conveyors 20R, 20L (first block) in the payout station 18 (see FIG. 1).
(See the figure) Chain conveyors, which are the main conveyors installed in the downstream position (in the direction orthogonal to these), 34, 35
Are respectively a pair of receiving roller conveyors extending in the direction orthogonal to the upstream side of the chain conveyor 33 and facing the roller conveyors 20R and 20L, respectively, so as to be movable up and down, and 36 is a receiving roller for both. Of the conveyors 34, 35, a payout roller conveyor provided in the chain conveyor 33 on the downstream side of the receiving roller conveyor 35 located on the downstream side of the chain conveyor 33 so as to extend and descend in a direction orthogonal to this, 37-39 are roller conveyors 34-36, respectively
Are first to third lifting means for lifting and lowering.

The chain conveyor 33 has a frame 40 that constitutes its base.
A pair of chains 41, 41, which are endless strips extending in the longitudinal direction, are provided at both inner positions of the inside of the frame 40 at positions of the upstream end and the downstream end of the chain conveyor 33. It is wound around gears 42a and 42b that are rotatably provided, and is stretched between both gears 42a and 42b.

In this case, the gears 42a, 42 at the upstream end of the chain conveyor 33
a is rotatably supported by the frame 40 via a support shaft 43, and the gears 42b, 42b at the downstream end are rotatably supported by the frame 40 so as to extend in the width direction thereof. It is integrally and rotatably attached to the moving shaft 44.

Further, as shown in FIG. 2, a mounting portion extending from the side portion of the frame 40 is provided on the side of the downstream end portion of the chain conveyor 33.
The drive motor 46 is fixedly mounted on the drive shaft 45, and one end of the rotary shaft 44 projects from the inside of the frame 40 toward the drive motor 46. The drive gear 47 integrally rotatably inserted into the drive shaft 46a of the drive motor 46 is meshed with the driven gear 48 integrally rotatably inserted into one end of the rotary shaft 44. There is.

In the chain conveyor 33, the drive motor 46 rotates the rotary shaft 44 via the drive gear 47 and the driven gear 48 to rotate the both gears 42b, 42b integrally with the rotary shaft 44. When the chains 41, 41 are connected to the gears 42a, 4
I try to circulate between 2b. Then, the chain conveyor 33 is configured to support the transfer jigs 6R, 6L on both chains 41, 41 as described later, and at this time, circulate both chains 41, 41 as described above. Thus, the transfer jigs 6R and 6L are transferred from the upstream side to the downstream side in the width direction.

As shown in FIG. 3, the receiving roller conveyor 34 has a plurality of guide rods 50 projecting downward from a lower surface of a frame 49 of the chain conveyor 33. The pipe 51 is slidably inserted in the pipe 51, and is movably supported by the frame 40 of the chain conveyor 33 via the guide rod 50 and the guide pipe 51 in a vertically movable manner.

In this case, the roller conveyor 34 includes the plurality of rollers 52.
Is the chain 4 of the chain conveyor 33 as shown by the solid line in the figure.
It is movable up and down between the position where it floats above 1,41 and the position where it sinks below the chains 41,41 as shown by the phantom line in the figure. (See FIG. 1) The transfer jig 6R is connected to the roller conveyor 20R so that the transfer jig 6R can be carried in from above. Further, in this case, notches 53 are provided on both sides of the frame 49 of the roller conveyor 34 so as not to interfere with the chains 41 when the frame is raised and lowered, and the rollers 52 are The chains 41 are arranged so as to be located between the rollers 52.

The first elevating means 37 for elevating and lowering the receiving roller conveyor 34 is a chain conveyor below the roller conveyor 34.
It is equipped with a plurality of cylinders 54 erected on the frame 40 of 33,
A vertically extending piston rod 54a of each cylinder 54 is coupled to a frame 49 of the roller conveyor 34. Then, the lifting means 37 is provided with the piston rod 54 of the cylinder 54.
By expanding and contracting a, the roller conveyor 34 is moved up and down as described later.

Like the receiving roller conveyor 34, the receiving roller conveyor 35 has a frame 55 having a plurality of guide rods.
It is movably supported by the frame 40 of the chain conveyor 33 via 56 and the guide pipe 57, and its roller 58 is the third.
Chain 41, 41 of chain conveyor 33 as shown by the solid line
Of the chain 41, 41 and the position of sinking below the chains 41, 41 as indicated by the phantom line in FIG. In this case, the roller conveyor 35 is connected to the roller conveyor 20L (see FIG. 1) at its raised position. Then, on both sides of the frame 55, cutouts 59 (second shown) are provided for avoiding the chains 41, 41 when moving up and down.

The second elevating means 38 for elevating and lowering the receiving roller conveyor 35 is, like the first elevating means 37, provided with a plurality of upright parts below the roller conveyor 35 and below the frame 40 of the chain conveyor 33. The roller conveyor equipped with a cylinder 60
By expanding and contracting the piston rod 60a of each cylinder 60 connected to the frame 55 of 35, the roller conveyor 35 is moved up and down as described later.

The payout roller conveyor 36 is also a receiving roller conveyor.
Similarly to the frame 34, the frame 61 is connected to the frame 40 of the chain conveyor 33 through the plurality of guide rods 62 and the guide tubes 63.
The roller 64 is supported so that it can be lifted up and down, and a position where the roller 64 sinks to the lower side of the chains 41, 41 as shown by the solid line in FIG.
As shown by the phantom lines in the figure, the chains 41, 41 move up and down to a position where they float above the chains 41. In this case, the roller conveyor 36
Is connected to the roller conveyor 20L (see FIG. 1) at its raised position. Then, on both sides of the frame 61, cutouts 65 (second shown) are provided for avoiding the chains 33, 33 when moving up and down. Also, the chain conveyor 33
On the upper surface of the side portion of the frame 61 located on the downstream side of the, the transfer jigs 6R and 6L that are transported on the chains 41 and 41 of the chain conveyor 33 are locked at a position directly above the roller conveyor 36, as will be described later. A plurality of stopper portions 66, which are locking means for locking, are fixedly provided.

Similarly to the first elevating means 37, the third elevating means 39 for elevating and lowering the payout roller conveyor 36 also comprises a plurality of stands upright below the roller conveyor 36 and below the frame 40 of the chain conveyor 33. The cylinder 67 is provided, and the piston rod 67a of each cylinder 67 connected to the frame 61 of the roller conveyor 36 is expanded and contracted to raise and lower the roller conveyor 36 as described later.

In FIGS. 2 and 3, reference numeral 68 denotes a detection switch fixed to the side of the frame 40 of the chain conveyor 33 on the upstream side of the receiving roller conveyor 35.
As described later, when the transport jig 6R is transported to a position facing it, this is detected.

Next, the operation of the connecting conveyor device 21 will be described with reference to FIG. 1 and according to FIGS.

In FIG. 1, as described above, the outfitting line 4 is connected to each door 3R, 3
After being transferred together with L, the transfer jigs 6R and 6R, which are separately transferred onto the tables 19R and 19L at the dispensing station 18, respectively.
6L, after being erected on the table 19R, 19L, in a state in which the width direction is directed to the longitudinal direction of the chain conveyor 33 of the connection conveyor device 21, the roller conveyor 19R, 19L from the table 19R, 19L. Via the connecting conveyor device 2
1 is conveyed toward the receiving roller conveyors 34, 35.

At this time, as shown in FIG. 3, both receiving roller conveyors 3
4, 35 are lifted to the upper side of the chains 41, 41 by the first and second lifting means 37, 38, respectively.
It is connected to 9R and 19L, and also a roller conveyor for payout.
36 is lowered to the lower side of the chains 41, 41 by the third lifting means 39.

Then, the respective transfer jigs 6R, 6L which are respectively transferred on the roller conveyors 19R, 19L are first transferred from the roller conveyors 19R, 19L onto the respective receiving roller conveyors 34, 35 as shown in FIG. It is carried in and supported on the roller conveyors 34, 35.

Then, as shown in FIG. 4, the roller conveyor 34 is lowered to the lower side of the chains 41, 41 by the first elevating means 37, and at this time, the transfer jig 6R is moved from above the roller conveyor 34 to the chain.
Reprinted on 41,41. After the transfer, the transfer jig 6R is operated by the operation of the chain conveyor 33.
While being supported on 41, 41, they are conveyed in the width direction of the conveying jig 6R toward the downstream side of the chain conveyor 33.

Then, during such conveyance, as shown by the phantom line in FIG. 4, the conveyance jig 6R approaches the conveyance jig 6L on the receiving roller conveyor 35 in the width direction to a position facing the detection switch 68. When it reaches, the receiving roller conveyor 35 is lowered to the lower side of the chains 41, 41 by the second elevating means 38 as shown in the fifth illustration, and at this time, the carrying jig 6L is the carrying jig 6R and its width direction. Roller conveyor for receiving with a space between
It is transferred from the top 35 to the chains 41, 41. After the transfer, the two transfer jigs 6R, 6L are conveyed integrally and further downstream on the chains 41, 41 by the operation of the chain conveyor 33 while maintaining a state in which there is a space between them. It When the carrying jig 6L reaches the position directly above the payout roller conveyor 36 as shown by the phantom line in FIG. 5 by this carrying, the side portion of the carrying jig 6L abuts the stopper portion 66, The transfer jig 6L is locked while sliding on the chains 41, 41.

At this time, the transport jig 6R is further transported toward the transport jig 6L in the locked state by the chain conveyor 33, and the transport jig 6R is transported.
6L abut, and at the same time, the connection pin 31 is connected to the connection hole.
Inserted in 32, both the transfer jigs 6R, 6L are connected to each other.

Then, in such a state, as shown in FIG.
The payout roller conveyor 36 is lifted to the upper side of the chains 41, 41 by the elevating means 39 of the two conveying jigs 6.
R and 6L are supported on the roller conveyor 36 and float above the chains 41 and 41.

After this, in FIG. 1, as described above, both the transfer jigs 6R, 6L are paid out from the payout roller container 36 onto the payout conveyor 25 which is suitable for a drive mechanism (not shown), and as described above. On the payout conveyor 25, they are integrally conveyed from the payout station 18 to the door mounting station 5. Then, the connecting conveyor device 21 is returned to the initial state (state shown in FIG. 3).

As described above, according to the connection conveyor device 21,
Both transfer jigs 6R and 6L can be easily used due to its simple structure and operation.
Are connected.

In this embodiment, the main conveyor is composed of the chain conveyor 33, but the main conveyor can be composed of a belt conveyor having an elongated circulation belt, like the chain conveyor 33, for example.

(Effect) As is apparent from the above description, according to the connecting conveyor device of the present invention, the pair of conveying jigs individually carried out from the outfitting line are respectively received on the pair of receiving roller conveyors in the raised state. After that, the receiving conveyor on the upstream side of the main conveyor is lowered by the first elevating means to transfer one of the transfer jigs onto the endless strip of the main conveyor, and from the upstream side to the downstream side of the main conveyor. The one conveying jig is conveyed in the width direction toward, and when the one conveying jig approaches the other conveying jig supported on the receiving roller conveyor on the downstream side by this conveyance, By the second elevating means, the other receiving roller conveyor on the downstream side is lowered to transfer the other conveying jig onto the endless strip of the main conveyor, and then both conveying jigs are brought close to each other. Further downstream While conveying integrally, while the other conveying jig is locked by the locking means during the conveyance, the one conveying jig is further conveyed to the downstream side to bring the two conveying jigs closer to each other in parallel. By thus connecting the two transfer jigs to each other, the two transfer jigs can be connected easily and efficiently, and the structure of the connection conveyor device can be simplified. it can.

Then, after connecting both the transfer jigs, the third raising / lowering means raises the payout roller conveyor from its lowered state so that both the transfer jigs are supported on the payout roller conveyor. Since the tools are integrally dispensed from the dispensing roller conveyor, both the transport jigs can be efficiently connected and dispensed while being transported from the outfitting line.

[Brief description of drawings]

FIG. 1 is an explanatory perspective view of an essential part of an automobile assembly line constructed by using an example of a connecting conveyor device of the present invention.
FIG. 3 is a plan view of the connecting conveyor device, and FIG. 3 is a plan view of FIG.
A sectional view taken along line III-III and FIGS. 4 to 6 are explanatory views of the operation of the connecting conveyor device. 2 …… Car body, 3R, 3L …… Door 4 …… Processing line (equipment line) 6R, 6L …… Transfer jig 21 …… Connecting conveyor device 33 …… Main conveyor (chain conveyor) 34,35 …… Receiving Roller conveyor 36 …… Payout roller conveyor 37 to 39 …… First to third lifting means 41 …… Endless strip (chain) 66 …… Locking means (stopper part)

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location B65G 47/88 B

Claims (2)

[Scope of utility model registration request] 1. In an automobile assembly line, left and right doors detached from a vehicle body are detachably attached to each other, and in the attached state, each door is subjected to a predetermined treatment in a treatment line provided on the assembly line. After that, a pair of transfer jigs, which are individually carried out from the processing line, and which are provided so as to be connectable by being brought close to each other in the width direction, are respectively received at the payout station of the processing line, An apparatus for connecting both transfer jigs while delivering a door integrally from the dispensing station, the apparatus being provided in the dispensing station of the processing line so as to extend in a predetermined direction and extending in the extending direction. A main conveyor that supports each conveying jig on a plurality of stretched endless strips and conveys it in the width direction of the conveying jig, and a main conveyor at the upstream portion of the main conveyor. And extends vertically in a direction perpendicular to the endless strips, floats above the endless strips at its raised position, and each transport jig is loaded in the floating state, and at its lowered position the endless strips. A pair of receiving roller conveyors that sink to the lower side, and after each transfer jig is loaded onto each of the receiving roller conveyors in its raised state, of both receiving roller conveyors, the upstream side of the main conveyor First elevating means for lowering the one receiving conveyor below the endless strip so as to transfer the one transfer jig from the one receiving conveyor located on the above end onto the endless strip of the main conveyor. And one of the conveying jigs supported on the endless strip of the main conveyor and conveyed from the one receiving roller conveyor to the downstream side of the other receiving roller conveyor of the other receiving roller conveyor on the downstream side. The width of the transfer jig Second elevating means for lowering the other receiving roller conveyor to the lower side of the endless strip to support the other transport jig on the endless strip of the main conveyor when approaching at Of the other receiving roller conveyor, which is provided on the downstream side of the other receiving roller conveyor, is supported on the endless strip of the main conveyor, and is transported from the other receiving roller conveyor to the downstream side thereof. And the other transport jig is transported from the upstream side to the other transport jig in a state where the other transport jig is locked by the locking means. A conveyor device for connecting a transportation jig of a door in an automobile assembly line, wherein the jig is connected to the other transportation jig in close proximity thereto. 2. The other transport jig is provided on the main conveyor at a position where it is locked by the locking means so as to extend in a direction orthogonal to the main conveyor and is movable up and down, and at the raised position, the endless strip. A payout roller conveyor that floats above the body and sinks below the endless strip at its lowered position, and the payout roller when the two conveyors are connected in the lowered state of the payout roller conveyor. 3. A door for a vehicle assembly line according to claim 1, further comprising: third elevating means for elevating the payout roller conveyor to the upper side of the endless strip so that both conveyor jigs are supported on the conveyor. Conveyor device for connecting the transfer jig.