JPS59114174A - Assembling device of body of automobile - Google Patents

Abstract

PURPOSE:To improve production efficiency by eliminating a time loss such as setting time, by providing a reciprocatable transferring device between a preset position and a set position. CONSTITUTION:A floor W1 is carried in and set on a preset jig 28 at a preset position through a drop lifter 24b of a carrying-in device 24 for a floor, and then side panels W3 on both sides are incorporated with the floor W1 from both sides of the floor W1 through the drop lifter 25b of a carrying-in device 25 for the side panel and a setting jig 25c. The floor W1, both the side panel W3 and a roof W2 are incorporated in a predetermined state by setting a roof W2 between receiving edges of both the side panels W3 from the upper part through a setting jig 26a of a carrying-in device 26 for the roof. This incorporating car body is positioned and secured from both sides by each of holding components through reciprocating motion from a set position of both side units 27a of a transferring device 27.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automobile body assembly apparatus for assembling an automobile body by welding side panels on both sides of the automobile body to the floor and roof of the automobile body.

Previously, the applicant of the present application installed a set trolley so as to be able to reciprocate between the set position and the welding position in front of the set position, and installed side panels on both sides of the car body on both sides of the welding position to connect the floor and roof of the car body. In an automobile body assembly device equipped with a welding jig for welding together the floor, both side panels, and the roof, the floor, both side panels, and the roof are set on the set trolley and transported from the set position to the welding position, and the welding jig is The set trolley can be returned to the setting position during welding operation, and a new floor, both side panels, and a roof can be set on the set trolley, thereby reducing time loss due to work setting. We proposed a method that could shorten the time and improve production efficiency, but the workpiece setting time tends to take longer than the welding time, resulting in some time loss. It is desirable that

An object of the present invention is to provide a device that satisfies such demands, and includes a set cart that is movable in a reciprocating manner between a set position and a welding position in front of the set position, and is provided on both sides of the welding position. An assembly device for an automobile body comprising a welding jig for welding side panels on both sides of an automobile body to a floor and a roof of the automobile body, the floor, both side panels, and the roof being set on the set trolley. A preset position is provided behind the set position, and the floor, both side panels, and the The vehicle is equipped with a carrying device for carrying in the roof and the roof and assembling them into a predetermined set state, and
A reciprocally movable transfer device is provided between the preset position and the set position, and the floor, both side panels, and the roof are placed in the set state and on standby at the set position by the transfer device. It is characterized by being conveyed and set on a set trolley.

Next, the present invention is applied to a second FXJ in which the left and right side panels (W,) are welded to the floor (Wl) and roof (W,) of an automobile body as shown in the first FXJ to assemble an automobile body. An explanation will be given with reference to the embodiments shown below.

In the drawing, (1) shows a set trolley provided reciprocally between the set position A and the welding position B in front of it, and (2) shows the welding jig provided on each side of the left and right sides of the welding position B. Each of the welding jigs (2) is mounted on a stand (3) that can move forward and backward inward and outward, as shown in Fig. 4, and at the advanced position, the welding jig (2) is Each side panel (Wa) e7
It operates to clamp the 0a (W,) and the roof (W,) and weld them together.

The set cart (11 is a pair of left and right rails (51 (51) provided on the line between the set position @A and the welding position B)
In addition, within the line, there are a pair of left and right guide rails (61 (first rack bar (7) slidably supported by 61, and a lower part fixed to the base). A second rack bar (8) on the side is provided, and both rack bars (
71 (8), the pinion (lItl- engages) which is moved back and forth in the front and back direction by the operating cylinder (9), and the set trolley (
11 is removably engaged with the first rack bar (7) at its lower surface, so that when the cylinder (9) operates, the pinion 01 and the first rack /(-(71) The set trolley (1) is given reciprocating motion between the set position A and the welding position B, and the set trolley (1)
According to the movement to the welding position B in step 1), the set cart (1) was raised to a predetermined height as shown by the dotted line in FIG. 4 by the lifting pin Qυ provided at the welding position B.

The set cart (1) is fitted with a drainage hole etc. of the floor (W,) as shown in FIG. 6 and FIG.
In addition to the floor holding members (12+) that position and support the , the side panel holding member (
[31 is the left and right pot 1 in three stages, front and rear, on the set trolley (1).
The front-stage holding member (13), which is provided in pairs and indicated by The flint pillar (W3) of each side panel (W3) is attached by closing the holding member αJ with the arm a9 erected.
a) The intermediate holding member a3, which is configured to hold down the lower end and is indicated by X in the figure, is a swinging workpiece holder which is raised and lowered inwardly and outwardly by a cylinder aη as shown in FIG. It is attached to the arm θ barrel so that it can be opened and closed inwardly and outwardly by cylinder 4, and each side panel (W
3) is configured to hold down the rear end of the side sill @ 3b), and the rear holding member 0 shown by The side panels (W,) are undulated on both sides and outwards, and are configured to hold down the glue affender (WaQ) of each side panel (W,). 707 (Wl) and is clamped and fixed,
Roof sight rails (w,
a) Roof (W) placed between the inner and side receiving edges (w, @)
, ) also receives the clamping force of the holding member (13) and the core receiving edge (W3
C) is clamped and fixed between the floor (wl) *both side panels (
Ws) + roof (Ws) can be freely transported to the welding position B in the set state, and then the set cart (1) is raised by the lifting bin Ql as described above, and these are moved to the welding jig (
By clamping the welding gun (4) provided in step 2) and releasing the operation of the holding part U' (13), these are transferred to the welding jig (2), and the set cart (1) is moved to its raised position. By descending from the position, it is possible to move back to the set position A in an empty state.

In the drawing (2) shows a pay-out cart that can reciprocate between the welding position 10,000 and the pay-out position C provided in front of it, and the pay-out cart (
2 is connected to the set trolley (1) as shown in Figure 3.
), and the welding position t of the set trolley (1)
In synchronization with the forward movement to itB, the assembled vehicle body is delivered to position aC.
It operates to convey to t.

Although the above is not particularly different from the above-mentioned proposal, according to the present invention, the preset position Dt-
Each carrying-in device c241 (
251C2 ('d) and a transfer device (27
), and the floor (W, ), both side panels (W, ), and the roof (W,) are set in the set state and wait at the set position A using the transfer device (goods) (1). To explain this in more detail, the floor carrying device (241) for carrying in the 7TLA (Wl) is a floor carrying device (241) that carries the floor ( W, ) is configured to be set from above, as shown in Fig. 2.

As shown in FIGS. 3 and 5, it consists of a four-piece lifter (24b) that carries the floor (Wl) from behind above the preset position, and the four-piece lifter (24b) is located at the preset position. Rear pillar C! ! I (21) was supported so that it could be raised and lowered freely.

The side panel carrying device (251) that carries the side panels (W,) positions each side panel (W,) and carries it onto the floor (W,) from both sides of the set position of the floor (W,). It is configured to be assembled, and both side panels (W,
), and the hanger (25a)
Each side panel (W,) is received from and, with it positioned, is lowered to both outsides of the set position of the floor (Wl).
A pair of droplets (25b) and each of the nine lids (25b)
A pair of setting jigs (
25c), and to explain this in more detail, 7 (25b) is a lifting frame 01) that can be raised and lowered freely on the support (to).
A movable frame G side that can freely move forward and backward inward and outward is provided, and the movable frame O is attached to appropriate positions of each side panel (W3), such as the roof sight rail (w, a) and the center pillar (w, t). Each holding member (2) is provided to detachably hold the rear fender part (W2C), and when the movable frame 0 is advanced inward, each holding member 0 holds the hanger. Receive and position each side panel (W,) from (25a), then lower the elevating frame Gυ with the movable frame C3 removed outward, and at the lowered position, each side panel ( The lower edge of W3) is received by the undulating support provided on the base as shown in Fig. 5, and in this state, each side panel (W) is received by each of the setting jigs (25a). Then, the delivery hind limb lifting frame 0υ was raised in preparation for transporting the next side panel.

Each of the setting jigs (25a) is placed on a pedestal (to) which can be moved inwardly and outwardly by a cylinder 0!9. ) receives each side panel (w3) from each lifter (25b) by each holding member 07) provided in □) to be assembled from the side. still,
The setting jig (25c) is omitted and the drop lifter (25c) is omitted.
It is also possible to assemble the side panels (W,) according to b).

The roof carrying device (E) that carries the roof (W,) is
As shown in Fig. 5, the roof (W,) is configured to be set from above between the receiving edges (%e) of both side panels (W,) that are assembled to the floor (wl).
a setting jig (26a) for removably suspending W,);
A movable frame (
26b), and the movable frame (26b) is supported by a guide frame (toward) on one side of the preset position so as to be movable forward and backward toward the preset position.

(27a)
(27a), each unit (27a).
a) is provided with a holding member OI for positioning and fixing the floor (wl), both side panels (Ws), and the roof (W, ) from both sides in a predetermined set state; ) (27a) are synchronized with each other and are provided with a synchronization mechanism (4 (I) (41) that moves up and down and makes five reciprocating movements.

To explain this in more detail, each unit (27a) has a pair of elevating platforms (one pair on the fourth platform) provided on both sides of the line between the set position A and the preset position B, as shown in FIG. As shown in Fig. 13, between each guide rail G44
) is movably supported, and a jig 0 (to) having each of the holding members 09 is arranged on each strip table (44), and each lifting table (42 is a cylinder (4119) A pair of front and rear X-links (47) (4?) operated by
3 (421) in order to move up and down synchronously.
(43 corresponding X links (4η(47)) are mutually synchronized with the synchronization bar (4
0a), and the above-mentioned lifting movement synchronization mechanism @
Constructed O. Each strip platform (44) is provided with a first rack bar (marked 4) on its lower surface, and the elevator platform (44) opposite thereto is provided with a first rack bar (marked 4).
The second rack bar fixed to the side (between the cylinder EI
The pinion 6v connected to the cylinder (501) is engaged with the pinion 6v connected to the cylinder (501). and the pinions 51 provided on each of the image mounts G44 and 44 in order to reciprocate the mounts on both sides (4(A) and 44) in synchronization. 6m) were connected via a synchronization bar (41a) to form the reciprocating synchronization mechanism (41) described above.

Further, the jig 09 is provided in three stages in the front and rear of each unit (27a) as shown in FIG. 11 and FIG. (operated at 53) to support the four parts (W, ) and side panel (W3) from below; The cylinder (54) moves the side panel (W) inwardly at the rear fender (Wao) as shown in FIG. There are four types available: one for pressing, shown as Y3 in the figure, and one for positioning by fitting into the door hinge mounting hole formed in the front pillar (Wsa) of the side panel (W3), shown as Y4 in the figure. Then, one each of the holding members t31 of Y and Y4 and three holding members O9 of Y are arranged on the movable frame 6e that is moved forward and backward by a cylinder 155) provided in the jig (45) of the previous stage, The jig in the middle (451, Y, holding member 0! One of the holding members OI of Y is placed, and one of the holding members OI of
The pieces were placed.

According to the operation of these holding members el, the floor (W,) + both side panels ("a)y roof (W,) assembled in a predetermined set state at the preset position are set from both sides. Next, to explain the overall operation of the present invention, first, the floor (Wl) is placed on the preset jig (to) at the preset position p using the drop lifter (24b) of the floor carrying device (24). Carry in and set, then set dropper 7 (25b) of side panel carry-in device (c) and setting jig (2).
5c) As above, assemble the side panels (Ws) on both sides of the floor (W,), and then install the roof between the receiving edges (W, e) of both side panels (W,). Using the setting jig (26a) of the transfer device (4), place this one vehicle body on both sides of the transfer device (2) (27a) (2
In the return movement from the set position A of 7a) to the preset position, the holding members Cll provided in each unit) (27a) are positioned and fixed from both sides as described above, and then both units) (27IL) (27a) are raised in synchronization with each other to remove the assembled vehicle body from the preset jig, and both units (27a) and (27a) are reciprocated to set position A in synchronization with each other, and then both units) (27
a) (27a) are lowered in synchronization with each other at the set position A, and the assembled vehicle body is set on the set trolley (1) waiting at the set position A.

Next, the assembly vehicle body is fixed on the set trolley (1) as described above using the holding members (121α3) for the 70a and side panels provided on the set trolley (1), and both units are attached.
27a) Release the operation of each holding member OI in (27a), move the set trolley (1) forward to the welding position B, and lift the set trolley (1) at the welding position B using the lifting pin Ql).
The floor (Wt) is raised to a predetermined height, and the welding jig (2) is advanced inward to prepare for this by each welding gun (4).
and the side panel (W,), the roof (W,), and the side panel (W,), and the set trolley (
1) Release the operation of the upper holding member (1'2j (13) and transfer the assembled vehicle body to the welding jig (2+), then lower the set trolley (1) and return to the set position A.

Here, at the preset position, the next workpiece setting work is performed immediately after the assembled car body is carried out by the transfer device, and the setting cart (1) is moved back from the welding position B to the setting position @A. Compared to the previous proposal that performs work setting, the work setting work is completed faster by the time required for the reciprocating movement of the setting cart (1) between the setting position A and the welding position B, and thus the welding process is completed faster. After completion of welding using tool (2), the next assembled vehicle body can be transported to welding position B without incurring any time delay.

As described above, according to the present invention, when the setting cart is reciprocated between the setting position and the welding position in front of it, the setting work of the floor, side panels, and roof is simultaneously performed at the preset position behind the setting position. The vehicle body assembled in a predetermined set state at a preset position can be set on the set truck via a transfer device, and it can be immediately transported to the welding position after welding is completed. This has the effect of reducing time and effort as much as possible and improving production efficiency.

[Brief explanation of drawings]

Figure 1 is an exploded perspective view of an example of an automobile body assembled using the device of the present invention, Figure 2 is a plan view of an example of the device of the present invention, and Figure 3
The figure is a side view taken along line m-■ in Figure 2, and Figures 4 and 5 are front views taken from line y-■ and line V-■ in Figure 2, respectively.
Fig. 6 is a plan view of the set cart, Fig. 7 is a side view thereof, and Figs. 8 to 10 are views of the holding member on the set cart as seen from line ■-■ to line X-X in Fig. 6, respectively. The front view, FIG. 11 is a plan view of the transfer device, FIG. 12 is a side view taken from the cutting-Xll line in FIG. 11, and FIGS. 13 and 14 are respectively FIG. 12 (7) Xll-XIII It is a front view cut along the line and the line X--XIV. A...Set position Knife...Welding position D...Preset position (W,)...Floor (W2)...Roof (W3)... ...Side panel (1) ...Set trolley (2) ...Welding jig Qa ... Floor loading device (2 countries ... For side panel Loading device (a)...
...Roof loading device (2) ...Transfer device (27a) ...Unit 0 seagull ...Holding member (41 (41) ...Synchronization mechanism

Claims (1)

[Claims] 1. A set trolley is reciprocatably provided between a set position and a welding position in front of the set position, and side panels on both sides of the automobile body are attached to the floor and roof of the car body on both sides of the welding position. This is an automobile body assembly device comprising a welding jig for welding and joining the floor, both side panels, and the roof, which are set on the set trolley and transported from the set position to the welding position. In a welding jig that can be delivered freely, a preset position is provided behind the set position, and the floor, both side panels, and the roof are each carried into the preset position and set in a predetermined state. Each loading device to be assembled is provided, and a reciprocally movable transfer device is provided between the preset position and the set position, and the floor, both side panels, and the roof are set by the transfer device. 1. An apparatus for assembling an automobile body, characterized in that the car body is conveyed and set on the setting cart which is waiting at the setting position. 2. The transfer device is composed of a pair of units installed on both sides of the line between the set position and the preset position so as to be able to reciprocate and move up and down between the set position and the preset position. The unit is provided with a holding member that positions and fixes the floor, both side panels, and the roof from both sides in a predetermined set state, and a synchronization mechanism that synchronizes both units to reciprocate and move up and down. An apparatus for assembling an automobile body according to claim 1, characterized in that: