JP3166429B2 - Body assembly method and apparatus - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method in which each part of a vehicle body is carried into a part assembling position by each transport positioning device, and the parts are combined and positioned at the assembling position, and then each part is assembled. and to a method and <br/> device with the vehicle body assembly for unloading as tack body.

[0002]

2. Description of the Related Art Conventionally, as this type of vehicle body assembling apparatus ,
For example, there are those shown in FIGS. In this device , an underbody transfer positioning device 1A extends along the ground G from the front of the component assembling position PP to the same position PP, and furthermore, a main body transfer positioning device 1B.
Extends rearward along the ground G from the component assembling position PP. Then, the underbody B is placed on the positioning pallet 2 of the underbody transport positioning device 1A and is carried into the component assembling position PP.

At both left and right sides of the part assembling position PP, a side member transport positioning device 3 is installed on the ground G,
A side member (not shown) is carried into the component assembling position PP by the same device 3. Pallet replacement devices 11 are installed on the ground G on both front and rear sides of the side member transfer / positioning device 3, so that the positioning pallets (not shown) on the side member transfer / positioning device 3 can be sequentially replaced. This pallet changer 1
A side member supply device (not shown) is installed above the first member 1 so as to supply the side members onto the positioning pallet of the side member transport positioning device 3.

The underbody transport positioning device 1A
A pallet transport elevating device 16 is provided above the transport positioning device 1B for the main body, and a positioning pallet 21 for a roof, a cowl and an upper back (not shown) is provided in the device 16. Then, the positioning pallet 21 is conveyed to the component assembling position PP and descends,
The roof, cowl and upper back on the pallet 21 are carried into the component assembling position PP. The pallet positioning device 17 is installed on the main body transport positioning device 1B behind the component assembling position PP, and the positioning pallet 21 in the lowered state is moved to three positions by the device 17 and the side member transport positioning device 3. It is to be clamped by. The positioning pallet 21 is lifted after the assembly of the main body M is completed, and is conveyed above the main body conveyance positioning device 1B.

A lower back transfer positioning device 40 is installed on the underbody transfer positioning device 1A in front of the component assembling position PP, and the lower back (not shown) on a positioning pallet (not shown) is mounted by the device 40. It is carried in to the assembly position PP.

The side member, the roof, the cowl, the upper back and the lower back are respectively assembled to the underbody B at the part assembling position PP to form a main body M, and the main body M is moved to the part assembling position by the main body transport positioning device 1B. It is to be carried out of the PP.

[0007]

However, in the above-described vehicle body assembling apparatus , the underbody transport positioning apparatus 1A is used.
And the main body transport positioning device 1B are arranged on both front and rear sides of the component assembling position PP and are provided in series through the component assembling position PP, so that the lower back transport positioning device 40 and the pallet positioning device 17 It has to be installed on the underbody transport positioning device 1A and the main body transport positioning device 1B on both front and rear sides of the component assembling position PP. Therefore, the devices 40 and 17 must have a structure capable of avoiding interference with the underbody B and the main body M. In this case, the pallet positioning device 17 does not become very large because it only needs to hold the positioning pallet 21 of the pallet transport elevating device 16.

However, the lower back transfer positioning device 4
Regarding 0, since the lower back positioning pallet reciprocates between the lower back supply position and the parts assembling position PP, the structure for preventing interference with the underbody B and the size of Aimata are inevitably large. Therefore, it is very difficult for an operator to enter and exit the component assembling position PP from the lower back transfer positioning device 40 side around the component assembling position PP, which causes a reduction in workability.

SUMMARY OF THE INVENTION It is an object of the present invention to improve the arrangement of each transport positioning device with respect to a component assembling position, thereby making it easier for a worker to enter and exit the component assembling position, thereby improving workability.

[0010]

In the vehicle body assembling apparatus according to the present invention, each part of the vehicle body is carried into a part assembling position by each transport positioning device, and the parts are combined at the assembling position. It can be assembled .

[0011] The respective carrier positioning device, a conveying and positioning apparatus for underbody, and a conveying and positioning apparatus for b ABAC.

[0012] The underbody transport positioning device includes an underbody
DobodiesFrom the front areaCarry in the parts assembly positionRoute
And the reverse of its loading directiondirectionFrom the part assembly position
Unload the bodyThe route is the same, and between these routesDrive
It is supposed to.

[0013]

In a region behind the component assembling position on the opposite side of the front region with respect to the component assembling position, a lower back transfer positioning device is installed adjacent to the component assembling position. Then, the lower bag is carried into the component assembling position by the same device.

In such a vehicle body assembling apparatus , since the underbody transfer positioning device is also used for unloading the main body , an area behind the part assembling position, i.e. ,
That is, the loading and carrying of the part to be assembled across the part assembling position.
There is no need to install any main body carry-out device in the rear area , which is the area on the opposite side of the exit route . In this respect, the present invention is significantly different from the prior art.

Therefore, the lower back transfer positioning device can be installed at a position adjacent to the component assembling position in a region behind the component assembling position. Since the lower back transfer positioning device has no relationship with the under body transfer positioning device, there is no need to consider interference between the under body and the main body, and the size can be reduced.

[0017]

EXAMPLES Hereinafter, the vehicle body assembly instrumentation according to an embodiment of the present invention
The arrangement will be described with reference to FIGS.

As shown in FIGS. 1 and 2, the underbody transport positioning device 1 extends along the ground G between the underbody supply position BP and the component assembling position PP. The positioning pallet 2 of the apparatus 1 reciprocates in the front-rear direction between the two positions BP and PP.

As shown in FIGS. 1 and 3, a side member transport positioning device 3 is disposed on the ground G on both the left and right sides of the component assembling position PP. In the device 3,
As shown in FIG. 4, a slide base 5 is supported on the machine frame 4 so as to be movable in the left-right direction, and a slider 6 is also supported on the slide base 5 so as to be movable in the left-right direction. The pallet mounting table 7 is supported rotatably about a shaft 7a. An air cylinder 8 is mounted on the slider 6, and its piston rod 8 a is connected to the pallet mounting table 7. As the piston rod 8a advances and retreats, the pallet mounting table 7 can take a falling state and an upright state on the slider 6.

An air cylinder 9 is mounted on the machine frame 4, and its piston rod 9 a is connected to the slide base 5. As the piston rod 9a advances and retreats, the slide table 5 reciprocates on the machine frame 4 and the pallet mounting table 7 on the slider 6 moves to the side member supply position SP.
And the pallet placing table standing position GP. The air cylinder 1 is mounted on the slide table 5.
The piston rod 10 a is connected to the slider 6. And this piston rod 1
0a, the slider 6 reciprocates on the slide table 5 to move the pallet table 7 to the pallet table standing position G.
It reciprocates between P and the part assembling position PP.

At the side member supply position SP, the pallet changing device 11 intersects. The pallet changing device 11 extends on the ground G in parallel with the underbody transfer positioning device 1 at a sufficient distance D. A plurality of positioning pallets 12 flow side by side in the pallet changing device 11, and the positioning pallets 12 are exchanged with the pallet mounting table 7 lying down at the side member supply position SP. Above the pallet replacement device 11, a side member supply device 13 extends along the replacement device 11, and the side member chuck mechanism 14 of the device 13 moves the positioning pallet 12 on the pallet mounting table 7 at the side member supply position SP. To stop above.

As shown in FIGS. 2 and 3, the transfer positioning device 15 for roof, cowl and upper back is roughly composed of a pallet transfer lifting device 16 and a pallet positioning device 17.

The pallet transport elevating device 16 is located above the component assembling position PP, and has a traveling platform 19 suspended by a guide rail 18 and a positioning pallet supported by the traveling platform 19 via a lifting mechanism 20. 21.
The guide rail 18 is extended to the part assembling position PP along the underbody transfer positioning device 1 near the part assembling position PP. As shown in FIG. 5, the traveling platform 19 is self-propelled along the guide rail 18 by the electric motor 22. The elevating mechanism 20 includes an elevating link 23 connected to the traveling platform 19 and an elevating chain 24. The positioning pallet 21 is connected to the elevating link 23 and the elevating chain 24 below the traveling platform 19. When the electric motor 25 on the traveling platform 19 is driven, the positioning pallet 21 moves up and down via the elevating chain 24 as the elevating link 23 expands and contracts. As shown in FIGS. 5, 6, 7, and 8, a roof chuck mechanism 26, a cowl chuck mechanism 27, and an upper back chuck mechanism 28 are mounted below the positioning pallet 21, and any of the chuck mechanisms 26, 27, and 28 is provided. Also air cylinders 29,31,3
Link mechanism 30, 32, 34, 36 moved by 3, 35
I use.

On the other hand, the pallet positioning device 17 is located on the underbody transport positioning device 1 adjacent to the component assembling position PP. The apparatus 17 has a portal frame 37, on which a pallet chuck mechanism 38 which is moved by an air cylinder 39 is mounted. And FIG.
When the positioning pallet 21 is lowered, the positioning plate 21a on the pallet 21 is held by the pallet chuck mechanism 38 as shown in FIG.

The underbody transport positioning device 1, the side member transport positioning device 3, and the roof cowl upper back transport positioning device 15 are all located in the front area FT of the component assembly position PP. In the area BT behind the position PP, there are only a part of the pallet changing device 11 and the side member supply device 13, and a large air space E remains on the ground G between the devices 11 and 13.

Therefore, as shown in FIGS. 1 and 2, the air space E is adjacent to the rear of the component mounting position PP on the opposite side of the underbody transport positioning device 1 in front of the component mounting position PP. A lower back transfer positioning device 40 is installed on the ground G in the inside. In the device 40, as shown in FIG. 9, a slider 42 is movably supported on a machine frame 41, and a positioning pallet 43 is supported on the slider 42 so as to be rotatable together with a lever 44 about a shaft 43a. ing. An air cylinder 45 is attached to the slider 42, and a piston rod 44 a thereof is connected to a lever 44. When the piston rod 45a advances and retreats, the positioning pallet 43 can take a falling state and an upright state at the lower back supply position LP. An air cylinder 46 is mounted on the machine frame 41, and its piston rod 46 a is connected to the slider 42. When the piston rod 46a advances and retreats, the slider 42 reciprocates and the positioning pallet 43 reciprocates between the lower back supply position LP and the component assembling position PP. The pallet changing device 11 is separated from the lower back transfer positioning device 40 by a sufficient distance D.

The underbody B is transferred to the positioning pallet 2 of the underbody transport positioning device 1 at the underbody supply position BP, and is carried together with the pallet 2 to the component assembling position PP.

The side member S is located at the side member supply position S.
At P, it is transferred from the side member supply device 13 to the positioning pallet 12 of the side member transport positioning device 3 in a lying state, and carried together with the pallet 12 to the component assembling position PP in an upright state.

The roof R, the cowl C and the upper back U are carried into the component assembling position PP together with the positioning pallet 21 of the pallet transfer elevating device 16 of the transfer positioning device 15, and are held by the pallet positioning device 17.

The lower bag L is placed by the operator on the positioning pallet 43 of the lower back transfer positioning device 40 at the lower bag supply position LP in a lying state, and is carried together with the positioning pallet 43 to the component mounting position PP in an upright state.

As shown in FIGS. 10, 11, and 12, the underbody B, the side members S, the roof R, the cowl C, the upper back U, and the lower back L carried into the part assembling position PP are temporarily attached to the main body. It becomes M. Then, the positioning pallets 12,
Reference numerals 21 and 43 move in directions opposite to the carrying-in direction and move away from the main body M.

The main body M on the positioning pallet 2 of the underbody transport positioning device 1 at the part assembling position PP is carried out together with the positioning pallet 2 in a direction opposite to the carrying-in direction, as shown in FIG. Then, although not shown, the main body M is carried out together with the positioning pallet 2 at the turning position DP. Then, after the main body M is taken out in a subsequent process, the positioning pallet 2 is moved from the rear of the underbody supply position BP to the same position BP.
Leads to.

Then, such an operation is repeated,
One after another, the main body M is temporarily attached and carried out. The first embodiment is characterized in that, first, the path for carrying the underbody B to the component assembling position PP is the same as the path for carrying out the main body M including the underbody B from the component assembling position PP. There is. Therefore, it is not necessary to install the main body transfer positioning device on the ground G in the area BT behind the part assembling position PP.
Occurs. Another feature is that the lower back transfer positioning device 40 is installed by effectively utilizing the extra space E. This lower back transfer positioning device 40 is an underbody B
Has no relationship with the carry-in path of the main body M and the carry-out path of the main body M, so that it is not necessary to consider the interference with the bodies B, M and the underbody transfer positioning device 1, and the size can be reduced. Therefore, the work space around the part assembling position PP is widened, and it becomes very easy to work around it and to enter and exit the part assembling position PP. Moreover,
Since the pallet changing device 11 and the side member supply device 13 with respect to the side member transfer / positioning device 3 are sufficiently separated from the underbody transfer / positioning device 1 and the lower back transfer / positioning device 40 by a distance D, workers can enter and exit more. It is easier to do.

However, it is not necessary for the pallet changing device 11 and the side member supply device 13 to have a sufficient distance D as described above, and the pallet replacement device 11 and the side member supply device 13 are moved closer to the underbody transport positioning device 1 and the lower back transport positioning device 40. May be installed adjacent to them. In this case, although it is slightly difficult for the worker to enter and exit, the workability can be improved by reducing the size of the lower back transfer positioning device 40.

A pallet positioning device 17 is provided on the underbody transport positioning device 1 adjacent to the component assembling position PP. The pallet positioning device 17 merely holds the positioning pallet 21 of the pallet transport lifting device 16. Therefore, it is only necessary to provide the pallet chuck mechanism 38 on the portal frame 37, and the size is smaller than that of the lower back transfer positioning device 40 which needs to move the positioning pallet 43 along the ground G. There is no hindrance for workers to enter and exit.

In the above embodiment, the main body M is formed by temporarily attaching the underbody B, the side members S, the roof R, the cowl C, the upper back U, and the lower back L to each other. May be changed as appropriate.

[0037]

According to the vehicle body assembling method and apparatus according to the present invention, performs the loading of the underbody of the parts assembly position, the carrying-out of the underbody assembled the assembly parts from the parts assembly position we established a conveying and positioning apparatus only the front region than the parts assembly positioned, since established the lower back for conveying and positioning device in the rear region than the parts assembly position, the lower back for conveying and positioning apparatus in this rear region is forward The size can be reduced irrespective of the underbody transfer positioning device in the area. Therefore, the lower back transfer positioning device in the rear area does not hinder when the worker enters and exits the component assembling position, which facilitates the entry and exit, and improves workability.

[Brief description of the drawings]

FIG. 1 is a schematic partial plan view showing a part assembling position and its vicinity in a state before assembling of a vehicle body assembling apparatus according to an embodiment.

FIG. 2 is also a schematic partial front view.

FIG. 3 is a schematic partial right side view of the same.

FIG. 4 is a schematic partial right side view showing only a side member transfer / positioning device shown in FIG. 3 in more detail;

FIG. 5 is a schematic partial front view showing only a roof / cowl / upper-back transfer positioning device shown in FIG. 2 in more detail;

FIG. 6 is a schematic partial front view showing only a roof chuck mechanism shown in FIG. 5 in more detail;

7 is a schematic partial right side view showing only the cowl chuck mechanism shown in FIG. 5 in more detail.

8 is a schematic partial front view showing only the upper back chuck mechanism shown in FIG. 5 in more detail.

9 is a schematic partial front view showing only the lower back transfer positioning device shown in FIG. 2 in more detail.

FIG. 10 is a schematic partial plan view showing a state immediately after assembling in the vehicle-body assembling line conveyor according to the embodiment;

FIG. 11 is a schematic partial front view of the same.

FIG. 12 is a schematic partial right side view of the same.

FIG. 13 is a schematic partial plan view showing a state where the main body is being unloaded from the component assembling position from the state shown in FIG. 10;

FIG. 14 is a schematic partial plan view showing a part assembling position and its vicinity in a conventional vehicle body assembling apparatus .

FIG. 15 is a schematic partial front view of the same.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Underbody conveyance positioning device, 2 ... Underbody positioning pallet, 3 ... Side member conveyance positioning device, 11 ... Pallet replacement device, 12 ... Side member positioning pallet, 13 ... Side member supply device,
15: Transport positioning device for roof cowl upper back, 16: Pallet transport elevating device, 17: Pallet positioning device, 21: Positioning pallet for roof cowl upper back, 26: Roof chuck mechanism, 27: Cowl chuck mechanism, 28: Upper back chuck mechanism, 3
8: Pallet chuck mechanism, 40: Lower back transfer positioning device, 43: Lower back positioning pallet, P
P: Parts assembly position, B: Underbody as part to be assembled, S ... Side member as part to be assembled, R ... Roof as part to be assembled, C ... Cowling as part to be assembled, U ... Part to be assembled Upper back as L, lower back as assembled parts, M as main body as body, FT as front area, BT as rear area.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI // B65G 47/68 B65G 47/68 E

Claims (4)

(57) [Claims] (1) Each part of the vehicle body is brought into a part assembling position, and
Body assembly method to assemble each part together at the assembly position
From the front of the component assembling position to the bottom part of the vehicle body.
Turn the underbody with its rear side toward the part assembling position.
The process of transporting to the same parts assembly position using the positioning pallet
And a rear part of the vehicle body from the rear at the part assembling position.
The lower bag which is
A process of assembling the rear body,
Using the same route as the loading route to the product assembly position,
Transporting the vehicle from the attached position.
Body mounting method. 2. Each part of the vehicle body is carried into a part assembling position, and
Body assembly method to assemble each part together at the assembly position
From the front of the component assembling position to the bottom part of the vehicle body.
Turn the underbody with its rear side toward the part assembling position.
The process of transporting to the same parts assembly position using the positioning pallet
And the side parts of the vehicle body from both sides of the part assembling position.
Side member from the rear of the part assembly position
Carry in the lower back, which is the rear part of the body,
These are assembled on the side and rear of the underbody, respectively.
Attaching the underbody assembled with each of these parts to the part
Assemble the same parts using the same path as the carry-in path to the assembly position
And carrying out the vehicle from a position.
Assembly method. 3. Each part of the vehicle body is controlled by a transfer positioning device.
It is carried into the product assembling position, and the parts are combined at that assembling position.
In the vehicle body assembling apparatus to be assembled, a bottom part of the vehicle body may be used in a region in front of the part assembling position.
An underbody turns its rear side to the part assembling position.
The positioning pallet on which the underbody is mounted and the positioning pallet
At the same time, the parts are transported to the
The positioning pad with the mounted underbody
Using the same route as the above-mentioned loading route.
Underbody for conveying and positioning for unloading the parts assembly position or et al.
A device for carrying-in and carrying-out with the component assembling position interposed therebetween;
Is located in the area opposite to the road, and
For the lower bag that carries the lower bag that is the rear part of the body
Characterized by comprising a transfer positioning device
apparatus. 4. Each part of the vehicle body is controlled by a transfer positioning device.
It is carried into the product assembling position,
In the vehicle body assembling apparatus to be assembled, a bottom part of the vehicle body may be used in a region in front of the part assembling position.
An underbody turns its rear side to the part assembling position.
The positioning pallet on which the underbody is mounted and the positioning pallet
At the same time, the parts are delivered to the parts
Positioning with mounted underbody with components
Using the same path as the path for loading the pallets
Underbody transfer position for unloading from the part assembly position
Device and side parts of the vehicle body from both sides to the part assembling position
Side member transfer position for loading the side member
And a process for carrying-in and carrying-out with the part assembling position interposed therebetween.
Is located in the area opposite to the road, and
For the lower bag that carries the lower bag that is the rear part of the body
Characterized by comprising a transfer positioning device
apparatus.