JPS62157856A - Work conveyor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention is capable of transporting large sheet metal workpieces, such as the side nose panels of automobiles, by suspending them on hangers. -Relating to a transport device.

(Prior art) Conventionally, in this case, for example, a workpiece that has been processed with a sword is transported from a processing station to a transfer station using a first hanger, and at the transfer station, the workpiece is transferred to a second hanger.
Transfer it to a hanger.

The second hanger: I am not aware of anything that allows the workpiece to be transferred from the transfer station to the assembly station.
In this case, the transfer station is provided with a transfer device that transfers the work between these hangers, and the work carried in by the first hanger is transferred from the transfer device to the second hanger. Generally, the work is transferred to

(Problems to be Solved by the Invention) In the method described above in which the workpiece is transferred from the first hanger to the second hanger via the transfer device 1, the equipment cost increases and it takes time to transfer the workpiece. In the past, there was a problem of decreased productivity, and it would be desirable to be able to directly transfer workpieces from the hanger No. 1 to the hanger No. 2 with a simple structure.

The purpose of this invention is to provide a device that satisfies such demands.

(Means for Solving the Problems) In order to achieve the above object, the present invention transports a workpiece to a transfer station where it is placed on a first hanger, and at the transfer station transfers the workpiece onto a second hanger. Then, the second
In the device in which the workpiece is carried out from the transfer station by a hanger, a first conveyance path for conveying the first hanger and a second conveyance path for conveying the $2 hanger are arranged in a lateral direction at the transfer station. The second hanger is installed in parallel on one side and the other side, and the second hanger is connected to an arm that can swing laterally.
and a hook pivotally connected to the arm,
By swinging the arm laterally to the same side, the hook is moved to the $1
The brush can be moved in parallel to a workpiece receiving position facing directly below a predetermined hanging point of the workpiece suspended on the non-gar, and the hook for hanging the workpiece provided on the first rack can be raised and lowered. By lowering the hook by 1 inch/gar, the workpiece was received by the hook of the second hanger located at the receiving position t.

One day I was there.

(Function) First, the workpiece is suspended from the hook provided with the first hanger, and in the next state, it is transported to the transfer station along @1 conveyance path C2, and the Second
The first hanger and the first hanger are conveyed along the conveyance path to the transfer station. The two hangers are laterally opposed to each other at the transfer station.

Next, the arm t#tlE1 of the second hanger is swung to the same side laterally.

In this case, the t-hook pivotally attached to the arm is moved in parallel to one side in the lateral direction while maintaining a predetermined hanging posture due to its own weight C:7rf.

Then, after moving and stopping the hook at the workpiece receiving position directly below the predetermined hanging point of the workpiece suspended by the first hanger, the hook ζ - the hook provided on the first hanger is lowered and the workpiece is Then, the arm is swung back to its original position, and the second hanger is moved C: Step 9 The workpiece is carried out from the transfer station.

In addition, when the workpiece falls off from the hook due to the tilting turtle of the second arm about the pivot axis opposite to the arm of the hook, the center of gravity of the workpiece is located on a vertical plane including the @ line of the pivot axis. This can be prevented by suspending the workpiece.

(Example) Referring to FIGS. 1 and 2, (1) shows the first H/G ratio (2 ) moves the side panel W to the transfer station S! The second hanger is conveyed from the station to the vehicle body assembly station S3 in front of it, and the @1 conveyance path (3) conveys the first hanger (1).
) with the terminal part of

The starting end portion of the second conveyance path (4) for conveying the second hanger (2) is arranged side by side on the same side and the other side laterally at the transfer station S2 +=, and at the transfer station S2 The side panel W was transferred from the first hanger (1) to the second hanger (2).

As clearly shown in FIGS. 3 and 5, the first hanger (1) is attached to a pair of front and rear brackets ( 5a) (5a
) between:; the constructed longitudinal upper frame (6) in the longitudinal direction C;
The upper frame (6) (S front and rear pair of guide members (6a) (
6a) and a longitudinally elongated lower frame (8) supported by an intermediate elevating cylinder (7) that can be freely raised and lowered.

A pair of front and rear hooks (9) for hanging the lower frame (8
(9) and an intermediate positioning rod an GO that sandwiches the sensor pillar wb from the front and back and positions the side panel W in the front and back direction. A presser member α that abuts the upper edge of the side panel W is attached to the upper edge of the side panel W via the
The side panel Wtl is placed in a fixed position (so that it can be hung in a fixed position), and the hook (9) moves in unison with the lower frame (8).
) The side panel W is configured so that it can be raised and lowered by the raising and lowering movement of (9).

In the illustrated example, the first hanger (1) is moved from a lower hanging position to an upper side centering on the upper frame (6) by a swinging cylinder a2 attached to one side of the lower part of the transport bar (5). After the first hanger (1) is returned to the work station Y81 with the first hanger (1) swung to the retracted position, the first hanger (1) is swung to the hanging position litm and moved to the site No.7. The first hanger (1) was placed to receive the flannel wl.

As shown in FIGS. 4 and 5, the second hanger (2) is supported so as to be freely movable on a pair of trolleys (13a) (13g) in the second conveyance path (4) l:l-. It is equipped with a pair of suspended arms α4 and a hook αaaf3 pivotally connected to the conveyor body (towards). : Detail C
2. A pair of front and rear brackets (1
3b) (13b) (2 longitudinal axis (14a) in the front-rear direction
The shaft (14a) is 1 m long, and each arm α4) is engaged with the upper end of the shaft (14a) so as to be rotatable, and each hook (a) is connected to a rod (14a) extending upward from the tail end of the shaft (14a).
L-shaped fixed grate (15a) fixed at the upper end
b) Bifurcated pivot N at the lower end of each arm α station at l2
A pivot (15c) in the longitudinal direction is pivotally attached to the part (14b), and the hook (to) is ζ-ni so that the weight balance of the hook 0Q including the rod (15a) allows the hook (to) to be suspended in a horizontal position. .

In addition, the hook αcJ is provided with a locking pin (C) on the rod (15a) in order to cope with model changes of the side panel W.
15d) It is locked so that its position can be adjusted in the vertical direction. Also, a fixing plate (15b) is attached to the pivot portion (14b).
The fifth hook (15a)
The figure shows seven pins (15) that prevent clockwise rocking.
e) was established.

By the way, since the first transport path (3) and the second transport path (4) are arranged side by side on one side and the other side in the lateral direction at the transfer station S, the first hanger (1) and Second hanger (
2) is transported to the transfer station S2, as shown in FIG. In this state, both the arms α43a4 of the second hanger (2) are swung counterclockwise, that is, to the left, toward the first hanger (1), and the side/J-nel W The first hanger (1) and the second hanger (2)
I'm going to move it to a new location.

The two arms Q4)α are attached to the swing mechanism of the two arms 0αa
4, for example, a lever (14c) protruding from the right side of the rear arm α→, and the lever (14c) at the rear of the second conveyance path (4).
14C) and a cylinder (A) attached to the same position, and a roller (16a) attached to the piston rod of the cylinder (14C). HL7t that swings both arms α4) (14) to the left.

At this time, each hook aS, which is pivotally attached to the lower end of each arm 04 as described above, swings counterclockwise around the pivot (15c) due to its own weight and maintains a horizontal position. 1]/Car (1) The workpiece receiving position shown by the imaginary line in Fig. Ru.

Thus, after the swing of the arm 040 station, the first] 1 ng (
If the hook (9) (9) of 1) is lowered together with the lower frame (8), the side wall W will be placed at the opening edge and the hook (1!!91m) will be received. The transfer of the side panel W to the second hanger (2) is completed by the swinging return of the arm Q4) a41 to the original position shown by the solid line in FIG. 5.

In addition, when the hook (9) ('l) of the first hanger (1) is lowered, the hook 090 of the second hanger (2)
I: In order to avoid interference, the hooks (9) (9) and the 7th hook αQ<li should be slightly spaced in the front and back direction when the hangers (1) and (2) are stopped being transferred to the transfer station S2. Then, suspend the side panel W from the hook 09Qa of the second hanger (2) so that its center of gravity is located on the vertical plane that includes the axis of the axis (15c) of these hook brocades α9. , these hooks α9 are maintained in a horizontal position even after hanging the side panel W.

Then, transfer the side panel W to the second hanger (2).
! After completion, the second hanger (2) is moved to the transfer station S along the second conveyance path (4) C.
2 to the vehicle body assembly station S3.

As shown in FIG. 6, the assembly station 53 includes a welding jig A that can be freely reversible to an outward setting position and a position for assembling and welding the side panel w6 to the floor and roof. , a reversible and swingable preset jig B for setting the side panel W in the set position on the welding jig A, and a second hanger (2) on the preset jig B.
A transfer device 0 for transferring the side panel W from the n is provided.
In addition, the terminal end portion of the second conveyance path (4) located above the transfer device fio is configured with a movable rail (14a) that is raised and lowered by =9 by an elevating cylinder αη, and the movable rail (14a
), the side panel W suspended by the second hanger (2) is received by the transfer device 0, and then the arm α404k of the second hanger (2) is lowered at the above-mentioned transfer station S2. It is swung back in the opposite direction to the swiveling direction, that is, to the right in FIG. .

In addition, when the arm Q4)04) is swung to the right, a cylinder (16') with a protruding lever (14') mounted on the movable rail (4a) is attached to the left side of the front arm α. Roller (16a') attached to the piston/rod of CL
In this case, each hook (to) is held in a horizontal position in order to be prevented from swinging clockwise relative to each arm α4 by the stopper pin (15e) described above. C: It is swung to the upper right direction integrally with each arm α4 without being held.

Moreover, the middle s of the second conveyance path (4) is divided into the outgoing path (4b) and the returning path (
4c) and C: The second conveyance path (4) shall be branched.
The second hanger (2) (2) is arranged in a t-1 pair,
When one of the two is transported from the transfer station S2 to the vehicle body assembly station S3 via the outward route (4b), the other one is returned from the vehicle body assembly station S3 to the transfer station S2 via the return route (4c).

In the drawings (18) (18') H on the outward path (4b) and on the return path (4c) and C: Circulation drive by each drive motor (18aH18'a) 1.
2) conveyor chain conveyor, (19) (19'
) indicates the transport cylinders provided at the rear of the starting end and in front of the terminal end of the second transport path (4), and the cylinders (19) (19'
At the tip of the piston/rod of ), there is an engagement member (
19a) (19a'), and install the cylinder (19a').
9) Operation of (19') (from 2nd bunker (2) each station 82 + 83 ka') Outbound (4b)
and the return trip (4c).

(Effect of the invention) As described above, according to the present invention, from the first hanger to the second hanger
Workpieces can be directly transferred to the hanger, reducing the time required to transfer the workpieces and increasing productivity.The structure is such that the second hanger is an arm that can swing laterally. The hook is pivotably mounted, and it is sufficient to simply make the hook of the first hanger movable up and down, which has the effect of significantly reducing equipment costs compared to the conventional method using a transfer device.

[Brief explanation of drawings]

Fig. 1 is a side view of an example of the device of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is an enlarged side view of the first hanger seen from line m-III in Fig. 2, and Fig. 4 is a side view of the An enlarged 1111 side view of the second hanger seen from the line IV-IV in the figure, Figure 5 is an enlarged cross-sectional view taken along the v-v line in Figure 2, and Figure 6 is an enlarged cross-sectional view taken along the line ■-■ in Figure 2. FIG. S2...Transfer station (1)...First bunker (2)...Second hanger (3)...First transport path (4)...Second transport path (9)...
・Hook a4...Arm (to)...
2 people outside the hook

Claims (1)

[Claims] A workpiece is carried into a transfer station by a first hanger, the workpiece is transferred to a second hanger at the transfer station, and the workpiece is carried out from the transfer station by the second hanger. A first conveyance path for conveying the first hanger and a second conveyance path for conveying the second hanger are arranged in parallel on one side and the other side in the lateral direction in the transfer station, and the second hanger is conveyed in the lateral direction. The structure includes an arm that can swing freely and a hook that is pivotally connected to the arm, and when the arm swings to one side in the lateral direction, the hook is attached to the workpiece suspended by the first hanger. The workpiece receiving position facing directly below a predetermined hanging point can be moved in parallel, and the hook for lifting the workpiece provided on the first hanger can be raised and lowered, so that the workpiece receiving position can be moved by lowering the hook of the first hanger. A workpiece conveying device characterized in that the workpiece is received by the hook of the second hanger located in the second hanger.