JPH0156852B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a workpiece conveyance device installed between two press machines to convey a workpiece from one press machine to the other press machine.

A conventional conveyance device for this type of workpiece is shown in U.S. Pat. No. 3,407,724, but the conveyance device shown in this conventional example is
A workpiece support claw is fixed directly to a belt wrapped around two pulleys that are separated from each other, and the workpiece is placed on the workpiece support claw of this belt and moved from one press machine to the other. It was not possible to change the posture of the workpiece during movement.

For this reason, when it is desired to move a workpiece processed by one press machine to another press machine while changing its position horizontally in the front and back direction while maintaining the same posture, conventionally, before or after the workpiece is transported by a transport device, The workpiece is moved horizontally by other processes,
There was a problem that one extra processing step was required.

The present invention was conceived in view of the above, and is capable of moving a workpiece horizontally back and forth while being conveyed from one press machine to another, thereby facilitating processing between adjacent press machines. It enables so-called horizontal offset feeding, which transports objects while moving them horizontally back and forth in the same posture without requiring a moving process using special equipment, as well as tilt feeding and horizontal rotational feeding, making it highly versatile. The purpose of the present invention is to provide a conveyance device for workpieces that is rich in quality.

Embodiments of the present invention will be described below based on the drawings.

1 in the figure is a frame, and this frame 1 is 4
It is movable in the front and back direction on wheels 2. A guide tube 3 is vertically provided in the center of the frame 1, and a guide post 4 is provided on the guide tube 3.
are rotatably and slidably fitted. A boss portion 5 is provided at the upper part of the guide post 4. A cylinder 6 is fixed within the guide tube 3, and a piston 6a fixed to the boss portion 5 is fitted into the cylinder 6. Pivot shafts 7, 7 are protruded from the front and rear outer surfaces of the boss portion 5, and an intermediate portion of the transfer unit 8 is pivotally supported on both pivot shafts 7, 7. The transfer unit 8 consists of a support frame 9 and a guide frame 10 fixed above the support frame 9, and the two pivot shafts 7, 7 are connected to the support frame 9. Pulleys 11 are provided at both ends of the guide frame 10.
a and 11b are supported, and a timing belt 12 is wound around these. One pulley 1
A motor 14 is connected to 1a via a speed reducer 13. This motor 14 can be freely switched between forward rotation and reverse rotation. 15 is a bearing.

A running carrier 16 is fixed to the timing belt 12, and this running carrier 16 is engaged with the guide frame 10 through rollers 17 so as to be able to run freely. Reference numeral 18 denotes a rotating carrier mounted above the traveling carrier 16 so as to be able to rotate freely, and a panel stand 19 is fixed to the upper part of the rotating carrier 18. The pivot carrier 18 is provided with a pivot lever 20, which is connected via a link 21 to a roller unit 22. The roller unit 22 has an intermediate portion rotatably supported in the horizontal direction by the tip of an arm 25 protruding from the side of the traveling carrier 16, and has one end connected to the link 21.
A swing link 26 connected to the tip of the swing link 26, a first roller 27 rotatably supported at the other end of the swing link 26, and second and third rollers 28, 29 facing the first roller 27. Support member 3 that supports this first roller 27 and second and third rollers 28 and 29
It consists of 0. 23 is the first roller 27, second and third rollers 2 of this roller unit 22.
This guide plate 23 is located between the guide frame 10 and the guide frame 10 and guides the guide frame 10, and the guide plate 23 is attached to the upper surface of the guide frame 10 so that its attachment orientation can be changed freely.

The conveyance device having the above configuration is installed between two press machines, and its position in the front and back direction is adjusted by moving the frame 1 with wheels 2. Then, by rotating the timing belt 12 in the forward and reverse directions, the traveling carrier 16 is reciprocated along the guide frame 10 of the transfer unit 8, and the panel 24 processed by one of the press machines is installed above the traveling carrier 16. It is placed on the panel stand 19 and transported horizontally to the other press machine (FIG. 5A).

At this time, the transfer unit 8 is tilted about the pivot shafts 7, 7, so that it can be conveyed with a head difference (FIGS. 5B and 5C).

Further, the transfer unit 8 is rotated horizontally around the guide tube 3, and in this state, the traveling carrier 1
6, the panel 24 is conveyed while being offset in the horizontal direction (FIG. 5D).

Furthermore, by attaching the guide plate 23 with an inclination in the front-rear direction, the swing carrier 18 can be rotated through a predetermined angle, for example, 90 degrees, while the traveling carrier 16 is moving, and the panel 24 can be rotated through 90 degrees. It is transported [Fig. 5E].

FIG. 6 shows an explanation of the operation when the panel 24 is conveyed while being rotated through 90 degrees. That is, the guide plate 23 is tilted back and forth around the middle portion of the guide plate 23 and fixed. As a result, the roller unit 22 guided by the guide plate 23 is inclined along the inclination of the guide plate 23. At this time, the middle part of the swing link 26 is connected to the arm 2.
5, the swinging link 26 of the roller unit 22 tilts about its middle part as a fulcrum, and the swinging carrier 18 moves via the link 21 to the traveling carrier 16 at the start end of the conveyance.
is rotated relative to the direction of movement. At this time, the inclination angle θ of the guide plate 23 is such that the rotating carrier 18 located at the start end of the conveyance is tilted by the guide plate 23 through the roller unit 22 and the link 21 by 45 degrees until it reaches the midpoint of the conveyance distance. Set the angle so that it will turn around.

When the traveling carrier 16 moves in this state, the roller unit 22 moves along the guide plate 23, which causes the link 21 to move in the axial direction, causing the swinging carrier 18 to swing, while reaching the end of the conveyance. The swivel carrier 18 is swiveled through 90°.

Therefore, the panel 24 placed on the panel stand 19 provided on the rotating carrier 18 at the start end of the transport is rotated through 90 degrees while reaching the end end of the transport.

Although FIG. 6 shows an example in which the panel stand 19 is rotated together with the revolving carrier 18, the panel stand 19 is designed so that its attitude can be changed in the horizontal direction with respect to the revolving carrier 18, and the conveyance starting end is Despite the pivoting position of the pivoting carrier 18, the panel stand 19 may be parallel to the direction of movement.

The above turning angle is the inclination angle θ of the guide plate 23.
can be changed arbitrarily within the range by changing .

The height of the transfer unit 8 is adjusted by supplying hydraulic pressure to the cylinder 6.

The tilting and turning movements of the transfer unit 8 may be performed manually by an operator, but a power source capable of fine control such as a servo motor may also be used. After tilting and turning, the transfer unit 8 is engaged and held by the locking mechanism. Although the frame 1 is movable in the front and rear directions, it is fixed to the floor using locate pins or the like during work.

Since the present invention is as described above, by installing the workpiece conveyance device having the above-mentioned configuration between the press machines, the workpiece such as a panel processed by one press machine can be moved horizontally back and forth. , can be rotated by an angle corresponding to the amount of movement in the forward and backward direction, and the workpieces between adjacent press machines can be moved horizontally in the forward and backward direction while maintaining the same posture without the need for a moving process using special equipment. It is possible to carry out so-called horizontal offset feeding. Furthermore, according to the present invention, not only horizontal direction feeding but also inclined feeding and horizontal rotational feeding are possible.
A highly versatile workpiece conveyance device can be obtained.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Figure 1 is a plan view, Figure 2 is a front view, Figure 3 is a side view, and Figure 4 is a side view.
The figure is a cross-sectional view taken along the - line in FIG. 2, FIG. 5 is an explanatory diagram of the operation showing the conveying posture state, and FIG. 6 is an explanatory diagram of the operation of horizontal rotation feeding. 1 is a frame, 8 is a guide frame, 12 is a timing belt, 16 is a running carrier, 18 is a swing carrier, 19 is a panel stand, and 23 is a guide plate.

Claims (1)

[Claims] 1 A string such as the timing belt 12 is stretched in the length direction of the guide frame 10, and this string is connected to a power source capable of forward and reverse driving, so that the string can run freely on the guide frame 10. The traveling carrier 16 engaged with the traveling carrier 16 is connected to the
A rotating carrier 18 with a panel stand 19 fixed to the upper part is rotatably provided, and a guide frame 10
and a guide plate 23 that guides the rotating carrier 18 as the traveling carrier 16 travels.
A transfer unit 8 is constructed by attaching the transfer unit 8 so that its mounting orientation can be changed, and the transfer unit 8 is supported on the frame 1 so as to be vertically rotatable and pivotable. Device.