JPS62160970A - Assembly device for car body - Google Patents

Abstract

PURPOSE:To curtail a total line length by arranging side panel assembly and transfer lines at both sides of a straight main line leading from a transfer line for floor assembly to a car body assembly station. CONSTITUTION:A pair of assembly lines 10 for a side panel 'W3' is arranged in parallel with a transfer line 3 at both right and left sides thereof. The side panel 'W3' for right and left sides as assembled on an assembly line 10 is transferred to each welding jig 7 via each right and left transfer line 11 extending forward from each assembly line 10. This assembly line 10 is provided with a charge station 'S1', a small part temporary fitting station 'S2', a small part tightening station 'S3', a sealing agent application station 'S4' and a discharge station 'S5' respectively in an order from the aft end to the forward end. Also, a part transfer hanger is provided between each station.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an automobile body assembly apparatus for assembling an automobile body by welding left and right side panels to a floor and a roof, which are constituent members of the automobile body.

(Prior art) The applicant of the present application previously received a patent application for this type of device in 1986-7.
According to No. 3186, a floor and a roof are transported from a set station to a vehicle body assembly station in front of the set station via a reciprocating conveyance member between the two stations, and the floor and roof are placed on both the left and right sides of the assembly station (
We proposed welding the left and right side panels using a pair of welding jigs.

Here, the side panel is transported and set in a welding jig after having undergone predetermined processing such as welding small parts and applying sealant.
As seen in Publication No. 4982, two processing lines for processing the left and right side panels are set up in parallel at appropriate locations in the factory, and these processing lines process the left and right side panels using hangers, etc. They are transported to welding jigs on the left and right sides of the vehicle body assembly station.

(Problem to be solved by the invention) In the above-mentioned apparatus, a transfer line for floor processing extending behind the set station is provided, and the floor processed by the transfer line is fed directly into the set station. (5) It is conceivable to construct a straight main line from the transfer line to the body assembly station, and in this case, the side panel processing line should also be placed along the main line (:) for efficient use of space. It would also be desirable to reduce equipment costs by shortening the transport distance of the side panel from the machining gill to the welding jig.

It is an object of the present invention to provide a device that meets these needs.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a floor and a roof that are transported from a set station to a vehicle body assembly station in front of the set station via a reciprocating automatic conveying member between the two stations. An automobile body assembly device in which the floor and roof are brought in and welded the left and right side panels to the floor and roof using a pair of welding jigs provided on the left and right sides of the assembly station. In a device in which the floor is input from a transfer line for floor processing extending behind the transfer line, a pair of side panel processing lines (= placed) are placed parallel to the left and right sides of the transfer line. The side panels on each side of the left and right sides processed in each processing line were conveyed from the respective processing lines to the respective welding jigs via transport channels on each side of the left and right sides.

(Function) The press-formed grooves on the left and right sides are subjected to specified processing such as welding of small parts and application of sealant in each processing line, and the processed left and right sides are The panel is transported through each welding jig (:) via each transport line extending in front of each processing line.

On the other hand, the processed floor is introduced from the transfer line into the set station, and the roof, which is separately conveyed by a hanger, is input into the set station, and both are conveyed to the V assembly station by means of a conveying member.

In this state, the left and right side panels held by the respective welding jigs are assembled and welded to the floor and roof to assemble the automobile body.

Here, the processing line for the left and right side panels and the processing line for the other side panel are separated into one side and the other side with the transfer line in between, and are separated from the transfer line in front of it. body assembly station (
= The side panels on each side of the left and right sides of the main line can be processed and transported to the welding jigs on each side, eliminating the need to transport the side panels from one side to the other across the main line. In addition to reducing equipment costs by shortening the line length as much as possible, the side panel processing line and conveyance line can be placed compactly on both sides of the main line, reducing the overall installation space of the line. will also be reduced.

(Embodiment) The illustrated embodiment includes the vehicle body structural members shown in FIG. 14, namely, the floor wl, the roof w2, the left and right side panels W3,
Dash upper w4. A device for assembling an automobile body W by welding rear trays Ws is shown, and in the figure (1)
) f'X is the vehicle body assembly station, (2) is the set station behind it, (3) U is the set station (
2) shows a transfer line for floor processing extending behind the assembly station (1) and the set station (2), as shown in FIGS. 41) and the upper licorice (42) are provided in a reciprocating manner, and the transfer roller (5) nyokutsuroa w1 at the front end of the transfer line (3) is put into the set station (2) and the lower carriage (4+) K is installed. A work receiver (6) is provided on the negative side of the set station (2) to allow workpieces to be placed in and out of the set station (2). The roof W2 is placed on the workpiece receiver (6) via the director device (6'), and the dash upper W4 and rear tray W5 are transferred from the conveyor C2 consisting of an overhead conveyor to the workpiece receiver (6).
), these three pieces are transferred to the set station (2) by the work receiver (6), and the upper rush grass (42
).

The assembly station (1) is provided with a pair of welding jigs (7) (7) on both left and right sides of the assembly station (1), which can be reversed and moved forward and backward into an inward welding position and an outward set position,
With each welding jig (7) reversed to the set position, each welding jig (7) is
), and set the left and right side panels W3 on the assembly station (1) using the seedling cars (41) and (42).
The side panels W3 are assembled and welded by reversing and moving the welding jigs (7) to the welding positions on the floor W11, roof W2, dash upper W4, and rear tray W5 that are carried into the building. The automobile body W which has undergone f' is transported from the assembly station (1) to the expansion line in front of it via a transferper (9).

Although the above is not particularly different from the above-mentioned previous proposal, in the embodiment shown in FIG. A pair of machining lines 00 are arranged, and the left and right side panels W3 processed by each machining line 00 are transferred to the left and right side panels W3, which are processed by each machining line 00, through conveyance lines αυ on the left and right sides extending forward from each machining line 00. As shown in FIGS. 4 and 5, each processing line QGU is
From the rear end to the front end, there are a loading station S11, a temporary attachment station for small parts 82, a light addition station for small parts 83, a sealant application station S4. It is equipped with a payout station S5, and a loading station S.
A reciprocating first hanger (12+) is provided between the tacking station S2 and the tacking station S2, and a reciprocating inner focusing 27- lever (12+) is provided between the tacking station S2 and the multiple lighting station S3.
22), multiple lighting station S3 and coating station S
A shuttle-type hanger conveyor consisting of a third hanger (12g) that can freely reciprocate between the coating station S4 and the dispensing station S5, and a fourth hanger (124) that can freely reciprocate between the application station S4 and the dispensing station S5. The panel W3 is configured to be transported in a tact manner from the loading station Sl to the transfer station S5 via the temporary mounting station S4.

As shown in FIGS. 6 and 7, each hanger (12+)...(124) is connected to a conveyor rail (
On the conveyor par α→ where the stones are reciprocated, a No. 1 ringer main body αG is suspended in the upper part from a longitudinal axis (A) in the front-rear direction so as to be able to swing freely in the horizontal direction. The piston rod of a π swinging cylinder (16a) attached to the lower side of the conveyor par α is connected to a lever (16b) protruding from the shaft rod (4), and the cylinder (16a) is operated to move the piston rod. The hanger main body αOf is made to be able to swing between a lower hanging position and an upper side retracted position, and a longitudinal support rod αη is connected to the lifting cylinder (17a) in the front and back direction at the lower part of the hanger main body α9. A pair of guide members (17bH17b) and the shaft rod (
A pair of front and rear V-shaped hooks 01 are attached to the support rod aη so that they can be raised and lowered, and a pair of front and rear V-shaped hooks 01 are attached to the support rod aη to immovably suspend the side panel W3 in the lateral direction at the opening edge of the door opening, etc., and the center pillar is attached from the front and rear. A pair of intermediate positioning rods αI (
19 is attached, and furthermore, a lifting cylinder (2 (Ja)) is attached to each end of the shaft lever (T) to hold a presser member that comes into contact with the upper edge of the side panel W3 - vertically movable. Hook 08 and rod 09 on the side panel W3
, the holding member (a) allows the hanger to be placed in a fixed position relative to the main body 09, and the lifting and lowering movement of the support rod αη and the above-mentioned swinging of the hanger main body (to) Station S. ...The side panel W3 was handed over at S5 so that it could no longer be disposed of.

In addition, @2 to 4th hanger (122) (123N124
) d. A common conveyor par Q4) having a rack (14a) on the upper surface that engages with the binion (21a) on the output shaft of the motor (c) provided above the intermediate part between the multiple lighting station S3 and the coating station S4. Once installed, the first hanger (12+) U is moved to the loading station S by a drive source (not shown)! and the tacking station S2,
The conveyor belt 04 is attached to a separate conveyor par 04.

A plurality of press-formed n1 female tonneau flannel W3 are carried into the input station S1 by being suspended in a vertical position from the input hanger via the input rail (A). ．． A nuclear transfer device @ is provided to transfer the side panel W3 from the input hanger to the first hanger (12+). As shown in Fig. 8, a horizontally movable cart (c) is connected to a horizontal axis (
26b) in the standing position and the forward lying position.
0 degrees flipped 1. A reversing frame @ is provided as a shaft, and a jig frame movable in the vertical direction is supported by the reversing frame @ in its upright position,
and a suction nose (27a) that suctions the rear fender portion of the side panel W3 to the jig frame (A).

A pair of positioning members (27b) +27b) are provided for positioning and gripping the side panel W3 in the vehicle height direction and the vehicle length direction at the side sill portion and a portion of the center pillar. By moving the trolley (A) laterally inward in the upright position, the loading hanger (H ) suspended from n
Then, the jig frame is moved upward and the trolley (c) is moved back laterally outward to remove the side panel W3 from the loading hanger, and then the reversing frame ( 5) Flip the panel to the laid down position and remove the side panel W.
3 was delivered to the first hanger (121) in a horizontal position.

In the expansion station S2, there is a 28 inlet on the inside in the lateral direction, that is, on the side of the transfer line (3) in preparation for model change.
A welding device with a jig (c) is provided in an outward working position and an inward non-working position so that it can be indexed freely,
A transfer device is attached to each of the bath welding devices as shown in FIG. Transfer small parts such as side sill inners, center pillar stiffeners, and roof sight rails to the side panel W3 in the jig part (28a) through the transfer device (c). Jig part (28a
) Tack welding is performed using a welding gun (28b) mounted on the welding gun (28b).

The transfer device @ has a cylinder (3Lla) attached to a bracket l' (28c) extending outward from the bottom of the jig part (28a).
A movable frame (to) that can move forward and backward in the horizontal direction is attached, and the jig frame 6 → to which various holders (31a) such as cran noses for holding the side panel W3 are attached to the movable frame (1) is moved to a swinging cylinder. (31b), the movable frame (31c) is pivotably installed in the horizontal direction about the shaft (31c).
The side panel W3 is moved from the first hanger (i2t) to the jig part (28a) by moving back and forth and swinging the jig frame c31).
The second hanger (12i) is moved back to the temporary attachment station S2 to transfer the side panel W3 which has already been temporarily attached from the jig portion (28a) to the second hanger (12i).

As shown in FIG. 10, the expansion station S2 includes a welding robot (to) equipped with a welding gun (32a) on the inside in the lateral direction, and a jig (331) for holding the side nozzle W3 on the outside in the lateral direction. The 91 jigs (33
A longitudinal axis (35
A swinging frame (to) that can freely swing around c) is installed as a shaft, and various holding tools (36a) such as a clamper for holding the side panel w3 are attached to the swinging frame (to). (7) is attached so that it can move forward and backward laterally using a cylinder (not shown), and after the side panel w3 is carried into the expansion station S3 using the second hanger (122), the ) is tilted to the desired workpiece receiving posture by the swinging of the swing frame (■), and is moved laterally inward toward the side panel W3, and the respective holders ( 36a
), and in this state, the welding rosette (2) is operated to weld the small parts to the side panel W3, and then the n-th welding rosette (2) is moved back to the welding station S3. 371 engine (12a), and make a hole so that the side panel W3 with additional lights can be replaced by the reverse operation to the above.

As shown in FIG. 11, the coating station S4 is equipped with a coating nozzle (37a) on the inside in the lateral direction, a π coating rosette (b), and a jig similar to the above-mentioned jig (331) on the outside in the lateral direction. (332) is provided, and the side panel W3 carried into the station S4 by the third hanger (12s) is attached to the jig frame (7) of the jig (332) in the same manner as above. Then apply a sealant or adhesive to the joints of the side panel W3 with the floor W, roof W2, etc. using the application rosette (B), and then move the lever to the station S4 for night shift. (124) to transfer the coated side panel W3 to each transport line αD, and carry it into the dispensing station S5 at the end of each processing line 00 by the fourth lever (124). It is configured to transport W3 by a dispensing knife to a transfer station S6, which is provided with a transfer device outside the assembly station (1).

As shown in FIGS. 12 and 13, the dispensing hanger (c) is supported by a pair of front and rear trolleys 6η (at 4 o'clock) on the top surface of the conveyor rail (g) on the conveyor line α°C so that it can run freely. A pair of front and rear arms (■) are attached to a longitudinally longitudinally extending conveyor par (6) with a longitudinally extending shaft rod (43a) at its upper end.
The dispensing no. and the fourth hanger (124) are stopped at the same positions on the inside and outside in the lateral direction at the dispensing station S5, and by swinging both arms laterally outward. Each of the hooks (goods) is moved to the work receiving position facing directly below the opening edge of the side panel W3 suspended by the fourth hanger (124), and then the above-mentioned Lower the support rod αη so that each hook receives the tin panel W3, and then swing both arm decoys (c) back to the vertical position and turn the payout lever (to). It was arranged to be transported to transfer station S6.

Then, at the transfer station S6, the side panel W3 is lowered together with the unloading hanger (to), the transfer device (2) receives the side panel W3, and then both arms (goods) (goods) are By swinging in the opposite direction, that is, inward in the lateral direction, the side panel W3 is transferred from the unloading hanger to the transfer device.

Here, when the both arm decoys swing outward in the lateral direction at the dispensing station S5, a lever (43b) protruding inward in the lateral direction of the rear arm is moved onto the station Ss. Installation at the starting end of the conveyor rail located at the location is performed by pushing down the bushing roller (45a) with a large cylinder (45+), and the horizontal inward swing of both arms aI43 at the transfer station S6 is A lever (43c) protruding laterally outward of the front arm is attached to a cylinder (452) attached to the terminal end of the conveyor rail located on the station S6.
5a), and the lowering of the unloading hanger (to) at the transfer station S6 is performed by lowering the end portion of the conveyance rail (to) by an elevating cylinder.

In addition, when each arm (good) swings outward in the lateral direction, each hook (2) swings counterclockwise in FIG. It is maintained in a horizontal position, but when each arm swings inward in the lateral direction, the stopper pin (44b) provided at the lower end of each arm prevents each hook from moving inwards. The arms are prevented from swinging in the clockwise direction, and the seven ivy 44 are allowed to swing upward and away together with the arms.

In addition, in the illustrated embodiment, the intermediate portion of the conveyance rail (A) is separated into an outbound path (40a) and a return path (4Ub), and two payout hangers (to) are provided.
) from the dispensing station S5 to the transfer station S6 via the outward route (40a), the other dispensing hanger @ is moved back from the transfer station S6 to the dispensing station S5 via the return route (40b). , here, each delivery hanger (7) is connected to each transport cylinder (7) provided at the rear of the starting end and in front of the terminal end of the transport rail (to).
471) (472), each station S5, S,
From the outbound route (40a) and return route (40b)
The outgoing path (40) is driven by each separate motor (48a).
a) Chain conveyors on the upper and return routes (41Jb) are used to transport the products on the outward route (4υa) and the return route (40b).

After performing the prescribed processing n4 as described above on the left and right side panels W31C and the processing lines 00 on the left and right sides of the transfer line (3), each transfer line 0υ extends forward from each processing line 01. 1 to the transfer station S6 on each side of the vehicle body assembly station S.
, 1. Welding jigs (
7) Set the assembly station S! The set station S2 in front of it is loaded onto the floor W1.
1 roof W2, dash upper W4. Rear tray W5
Then, each side panel W3 is assembled and welded from both the left and right sides, and the automobile body W is assembled.

(Effects of the Invention) As described above, according to the present invention, both 11 lines of the linear main line from the floor processing transfer line to the vehicle body assembly station! IK: The side panel processing lines and conveyance lines on each side of the left and right sides can be placed in a connoisseur, which reduces the installation space of the entire line, reduces the length of the conveyance lines, and reduces equipment costs. has.

[Brief explanation of drawings]

FIG. 1 is a plan view showing the line layout of the device of the present invention;
2 is a cutaway front view of the vehicle body assembly station taken from the line ■-■ in FIG. A side view of the processing line and conveyance line seen from the ■-■ line and the ■-■ line in Figure 1,
Figure 6 is a side view of the hanger provided in the processing line, Figure 7 is a drawing showing the section where the ■-■ line in Figure 6 is cut, Figure 8 is a back view of the loading station, and Figures 9 to 11 are temporary attachments. A cutaway front view of the station, expansion station, and coating station, Figure 12 is a side view of the unloading hanger provided on the conveyance line, and Figure 13 is a 4th hanger inserted into the unloading station cut along the line Xllll-■ in Figure 12. FIG. 14 is an exploded perspective view of the automobile body. Wl...Floor W2...Roof W3...Side Nosenel (1)...Body assembly station (2)...Set station (3)...Transfer line (51) (52)... Commercial vehicles (transportation parts) (7)...
Welding jig 00...Processing line αD...Transportation line

Claims (1)

[Claims] The floor and roof are carried from the set station to the vehicle body assembly station in front of it via a reciprocating transport member between the two stations, and the floor and roof are connected to a pair of An automobile body assembly device for welding left and right side panels using a welding jig, in which the floor is fed into the set station from a transfer line for floor processing extending behind the set station. A pair of side panel processing lines are arranged parallel to the left and right sides of the transfer line, and the left and right side panels processed on each processing line are transported to the left and right sides extending forward from each processing line. An assembly device for an automobile body, characterized in that the vehicle body is transported to each of the welding jigs via a line.