JPS60240574A - Device for attaching door to vehicle - Google Patents

Abstract

PURPOSE:To move a setting jig forward as it is previously positioned to door openings without using a locator, by correcting the location of the origin for the setting jig depending on the deviation of the jig from the normal set positions of the door openings. CONSTITUTION:A position detector 13, which detects the positional deviation of door openings b, b', is provided so that driving cylinders 10a, 12a for a first movable frame 10 and a third movable frame 12, which are drivers for moving a setting jig 6 in the directions of the width and height of a vehicle, are operated according to a signal from the position detector 13. As a result, the location of the origin for the setting jig 6 is corrected depending on the positional deviation of the door openings b, b' before the jig is moved forward.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vehicle door assembling device, and more particularly, it includes a setting jig for positioning and freely setting a door outside an assembling station, and The present invention relates to an assembling device which can move forward and backward toward a door opening of a vehicle body set on the assembling station, and which assembles the door into the door opening by advancing the setting jig.

Conventionally, in this type of device, as disclosed in Japanese Patent Application Laid-Open No. 54-5276, a setting jig is floatingly supported on a frame that can move forward and backward toward the vehicle body, and the setting jig is provided with a reference hole in the vehicle body. A locating piece to be engaged is fixedly installed, and when the pedestal moves forward, the setting jig is moved by the engagement of the locating piece #q with the reference hole, and the locating piece #q is positioned at a position corresponding to the door opening. However, with this method, the locating piece is forcibly inserted into the reference hole while moving with the setting jig, which tends to damage the car body side, and excessive force may be applied to the locating piece. Furthermore, when a balance mechanism is provided to facilitate the movement of the setting jig, the device becomes complicated and expensive.

SUMMARY OF THE INVENTION In order to eliminate such inconveniences, an object of the present invention is to provide a device that can advance a setting jig while positioning it in advance at a position corresponding to a door opening without using a locating piece. It is equipped with a setting jig that can be set freely by positioning the door on the side of the assembly station, and the setting jig is set on the assembly station.
It can move forward and backward toward the door opening of the I6 vehicle body.

The door is assembled to the door opening by advancing the setting jig, and the setting jig is moved in the vehicle length direction and the vehicle height direction from a predetermined origin position corresponding to the normal setting position of the door opening. The set jig is movable by each drive source, and is provided with a position detector that detects the displacement of the door opening from the set position, and the respective partial drive sources are actuated by signals from the detector, and the set jig is It is characterized in that the origin position # can be freely corrected in accordance with the position n of the door opening prior to its forward movement.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The illustrated embodiment of the present invention applied to the assembly of a door of a four-door automobile will be described below.

Referring to FIGS. 1 to 4, (1) shows an assembly station provided in the middle of a transport line for vehicle body a, and vehicle body a on transport vehicle (2) is moved along the line. In front of the station (1), there is a car body support (3a) (r
Deliver it to the loading carts (3) (3) on both sides of the car,
The loading wheel (3) (3) is set on a jig stand (5) equipped with various positioning members (4) provided at the station (1), and the rear and front of the vehicle body a are After assembling the rear and front doors c and c' to the door openings b and b' as described later, the vehicle body a is moved rearward through the space under the jig (5). The lift wheel (3) is reciprocated between the assembly station (1) and its rear position on the carrier (2).
3) 8 cars (3') (3'
).

There are doors c and c on both sides of the station (1), respectively.
A setting jig (6) that can be freely set by positioning the rear door cf is disposed. f
1 was assembled to the rear door opening of the vehicle body a, and then set to the front door c' using the setting jig (6) in the same manner, and this was then assembled to the front door opening part b'.

The door loading device (7) has double inner and outer slide frames (7a) (7b) supported by the machine frame (3) so as to be movable in the front and rear directions.
), and the inner slide frame (7a) is connected to the cylinder (7a).
When moved by c), the outer slide frame (7b) is given a double stroke movement via a speed doubling mechanism (not shown), and the doors c, c' are carried in from above by a non-garter or the like. f The outer slide frame (7b)
The door holder for Niko-n consists of a piece (7d) and a clamp member (7).
e) so that it can be held by and transported to a predetermined loading position opposite to the setting jig (6), and the door c
, c' are transferred to the setting jig (6) at the input position and set to n.

The setting jig (6) is placed on a shift table (9) which can be freely shifted in the longitudinal direction, that is, in the longitudinal direction of the vehicle. It is supported via a three-axis orthogonal coordinate type rosette mechanism that is movable in the vehicle height direction indicated by Z in the figure, that is, a first movable part that is movable in the vehicle length direction is mounted on the shift table (9). A rod mechanism consisting of a frame θ0, a second movable frame aυ above which is movable in the vehicle interior direction, and a third movable frame ■ which is movable in the vehicle height direction above the second movable frame aη is mounted. Thus, the i3 movable frame (2) was made to support the setting jig (6). In the drawing (9a0
10a) (lla) (12a) is the shift table (9
) and each drive cylinder of each movable frame 00Q°C (2) are shown.

When setting the door to the setting jig (6) described above, shift the shift table (9) to the front position with the first movable frame a0 in the neutral position as shown in the figure, and then set the door. Positioning the jig (6) at a predetermined door receiving position that matches the door loading position by the door loading device (7),
When assembling the door to the rear door opening, the setting jig (6) is moved to the normal setting position of the door opening by shifting the shift table (9) backwards. The origin position on the rear side and the P opening b' on the front side
When assembling the door, move the first movable frame 00 forward from the neutral position to move the setting jig (6) to the door opening b'
In this case, each door opening b
, b' is in the normal setting position, the second movable frame αη is moved to advance the setting jig (6) f from the respective origin positions inward in the direction of the inside of the vehicle to close the respective door openings. b,
The doors c and c' are assembled to the door b', but in reality, due to assembly errors in the side panels of the vehicle body a, the positions of the door openings b and b' are different from the normal set position inside the car. Therefore, in the present invention, the positions of the respective door openings b and b' are determined.

A position detector a3 is provided to detect the position detector a3, and each drive source, that is, the first movable frame (10 and Each drive cylinder (10a) (12a) of the third movable frame (2)
, so that the origin position of the setting jig (6) is corrected in accordance with the position of each door opening b, b' prior to its advancement.

The position detector (to) detects the position of a reference hole d formed at the lower front end of the side panel, and detects the position of each door opening b,
It is configured to determine the position 1 from the normal set position of b', and is a slide frame 04) provided on the machine frame (8) that is movable in the longitudinal direction of the vehicle and can be moved forward and backward in the direction of the inside of the vehicle. It was supported through αQ. The details are as shown in FIGS. 8 and 9, and the detector body (13a) attached to the slide frame αQ has a first rotating element (13c) having an axis (13b) in the vehicle length direction. A second rotator (13e) having a shaft (13d) in the vehicle height direction is pivotally supported on the rotor, and a stylus that engages with a reference hole d is attached to the second rotator (13e). (t3r)? Once installed, the stylus (13f) can be oscillated in any direction by the movement of the two rotators (13c) and (13e), and the oscillation angle in the vehicle height direction is linked to the shaft (13b). It can be detected by the first potentiometer (13g) and the second potentiometer (13h) which is linked to the axis (13d) of the head oscillation angle f in the longitudinal direction of the vehicle.
The vehicle length direction and vehicle height of the stylus (13f) when the [phase] is moved inward in the vehicle interior direction by the movement of the slide frame Q61 and the stylus (13f) is held in the reference hole d. From the swing angle of the direction, the position of the reference hole is f'L%, so each door opening b,
The position nf in the vehicle length direction and the vehicle height direction of b' is detected, and the position of each of the drive cylinders (10a) (12
a) F was operated to correct the origin position of the setting jig (6).

In the drawings, (14a) and (15a) indicate the drive cylinders of each slide frame α4) (g).

Moreover, on the shift table (9), each door C2C'
A pair of tightening spatulas P (16') for the rear door and the front door are arranged at the door hinges e and e' to lock the car body alc & lut.
'iMore specifically, on the shift table (9), there is a fourth movable frame 0η that is movable in the direction of the inside of the vehicle and a fifth movable frame 0 that is movable in the vehicle length direction. movable 6th
A second rosette mechanism of a three-axis orthogonal coordinate type assembled with a movable frame is disposed, and the tightening spatula has a plurality of nut runners (16a, 16'a, and f) on the rosette mechanism.
(16) and (16') respectively into separate feed cylinders (16b
) (16'b) so as to be freely fed and driven inward in the car direction, and bolts are set through the bolt receiving device eAf provided on each nut runner (16a) (16'a) K machine frame (8). When each door C9C' is assembled by moving the fifth movable frame (G) and the sixth movable frame moe, each tightening head (1) is attached to a position corresponding to the door hinge e, e'.
6) (16') 'f is positioned, and after this is advanced to a predetermined position inward in the vehicle interior direction by the fourth movable frame Q7), the respective feed cylinders (16b) (16'b) are used to move the Each tightening head is driven inward toward the inside of the vehicle to perform the tilt-stopping work. In the drawings (17a) (18a)
, , (19a) shows the drive cylinder of each movable frame 07) (to) 09.

The bolt receiving device head is attached to a bolt receiving head (20
a) and the bolt supply head (20b) fixed to the machine frame (8).
), and the bolts supplied via the pressure feeding tube (20c) connected to the supply head (2ob) are gripped by each chucking part provided on the receiving spatula)' (20a). The receiving head (20a) is moved from the tilt receiving position facing the supply head (20b) to the tilt receiving position facing each of the tightening heads (16) (16/) by the operation of the drive cylinder (21a) of the slide frame e21). At the delivery position, each nut runner (16a H1) of each tightening head (16) (16') is moved to the delivery position.
6'a).

The overall configuration of the apparatus of the present invention has been described above, and next, the detailed configuration of the setting jig (6) will be described.

The setting jig (6), as shown in FIG.
, a pair of vacuum holes for suctioning and holding c', a door holder for receiving the lower edge of each door c and c', and a door opening for each door c and c' and each door opening b. , b'
The dust sensor (c) is provided with a dust sensor (c) for measuring the gap between each door C9c/ and the rear edge of each door opening b, b'. A pair of devices are prepared, one for measuring the gap amount in the direction and the other for measuring the gap t in the vehicle height direction between the lower edges.

As shown in FIGS. 5 and 6, each dust sensor υ includes a fixed claw (24a) that receives each side edge of the doors c and c';
A movable claw (
24b) and the fixed claw (24a) of the movable claw (24b).
Displacement with respect to −t″ff detection potentiometer (24c
), and the movable claw (24b) is connected to the fixed claw (24a).
This is the P opening part b of door C9C/.
, engaged with the side edge of the opening prior to insertion into b'
At this time, the amount of displacement of the movable claw (24b) with respect to the fixed claw (24a) is detected by the detector (24c), and the doors c, c' and the door openings b, b' are detected. The final positioning is performed by slightly moving the setting jig (6) in the vehicle length direction and vehicle height direction so that the clearance amount becomes a predetermined value. 'The door opening.

In addition, since the shape of the lower edge of the door differs depending on the rear door C and front door C' and the model, the door holder piece (c) has a plurality of pieces as shown in FIG. 7. Each predetermined door holder is fixed to one side by an indexing mechanism consisting of a rack (23b) and a pinion (23c) that are linked to a cylinder (23a) and a rack (23b) and a pinion (23c) that are linked to a cylinder (23a). 1. is selected in the operating position to receive the lower edge of the door.

Next, to explain the operation of the above embodiment, first, the rear door c
After setting the rear door of vehicle body A on the setting jig (6) located at the door receiving position via the door loading device (7), the setting jig (6) is set on the complete assembly station (1). The setting jig (6) is moved to the origin position corresponding to the normal setting position of the opening, and then the setting jig (6 ) The origin position is corrected by moving it in the vehicle length direction and vehicle height direction as described above, and this correction hind leg setting jig (6) is advanced inward in the vehicle interior direction toward the rear door opening. A pair of dust sensors Q4 (
c), the setting jig (6) is finally positioned so that the clearance amount in the vehicle length direction and the vehicle height direction between the rear door C and the rear door opening becomes a predetermined value, and the rear door C is 'f- Insert the slider P into the opening part, and in this state, use each nut runner (16a) of the tightening head to bolt the door hinge ef to the center pillar of the vehicle body a as shown in Figure 10, and assemble the rear door C. Complete the attachment.

After completing this assembly, the setting jig (6>?r) is returned to the door receiving position, and after setting the front door C' through the door loading device (7), Move the front door opening b' to the original position corresponding to the normal set position, and follow the same procedure as above to open the front door C'.
Assemble it into the front door opening b'.

As described above, according to the present invention, the setting jig is moved in the vehicle length direction and the vehicle height direction by the signal from the position detector that detects the position f from the normal setting position of the door opening. , the origin position of the setting jig can be corrected according to this position n, and with the setting jig positioned at a position corresponding to the actual position of the door opening, This has the effect of overcoming the disadvantages of the above-described conventional device in which the setting jig is positioned relative to the door opening by a locating piece provided on the setting jig when the setting jig is moved forward.

[Brief explanation of the drawing]

FIG. 81 is a plan view of an example of the device of the present invention, FIG. 2 is a front view thereof, FIG. 3 is a plan view of the main parts thereof, and FIG.
5 is a front view of the setting jig as seen from line V-IV in FIG. 4, and FIGS. ■-■ line cutaway plan view, Figure 8 is a cutaway plan view of the position detector, Figure 9 is IX-■ of Figure 5g8.
FIG. 10 is a cross-sectional side view and a cross-sectional plan view showing bolt-fastening locations of the rear door. a...Vehicle body b, b'...Door opening c, c'...
・Door (1)...Assembly station (6)...Setting jig (10a) (12a)...Drive cylinder (drive source for the vehicle length direction and vehicle length direction of the set jig) Target...・Position detector

Claims (1)

[Claims] A setting jig is provided on the side of the assembly station for positioning and freely setting the door, and the setting jig is movable toward the door opening of the vehicle body set on the assembly station, and In a device in which the door is assembled to the door opening by advancing a setting jig, the setting jig is moved in the vehicle length direction and the vehicle height direction from a predetermined origin position corresponding to the regular setting position of the door opening. The setting jig is movable by a drive source, and is provided with a position detector that detects the displacement of the door opening from the set position, and a signal from the detector operates each of the partial motion sources to set the set jig. A vehicle door assembling device characterized in that the origin position can be freely corrected in accordance with the position f of the door opening prior to its forward movement.