JP2001225934A - Conveying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a conveying device capable of speedily and certainly delivering a work for a hook member in a simple structure. SOLUTION: The hook members 13 are attached to the proximity of one end under a lower plate 7 of a lifting device 5 capable of lifting up or down with each one end of a pair of arm members 11 oscillatingly journalled. One end of an air cylinder 12 is journalled to the proximity of the other end under the lower plate 7, and the other end of the air cylinder 12 is rotatably connected to the other end of the arm members 11 via a connection shaft 14. The pair of hook members 13 are hoisted on both ends of the connection shaft 14. The hook members 13 are moved on a circular arc track by the air cylinder 12, and a roof side member 2 positioned on the track is picked up, thereby performing delivery from a work extracting device 20 to the conveying device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer device for transferring a work in a state where the work is locked by hook members.

[0002]

2. Description of the Related Art Generally, in a vehicle body manufacturing process, a work such as a roof side member is transferred by a transfer device as shown in FIG. This transfer device 100
For example, a transporter main body 102 movable via a roller 102a on a rail 101 laid in an upper space in a factory.
And a plurality of hook members 103 that can lock and hold the work 120 at the upper portion thereof, and move the hook members 103 interposed between the carrier body 102 and the hook members 103 to move up and down with respect to the carrier body 102. And an elevating device 104 for performing the operation.

[0005] In the transfer apparatus 100, the transfer of the work 120 to the hook member 103 is generally performed by a work take-out device 110.
That is, when the transport device 100 is stopped at a predetermined position on the rail 101 and the hook member 103 is lowered to the predetermined position by the lifting device 104, the work removal device 110
Is the workpiece 120 gripped by the workpiece gripper 111
Is moved forward and backward (horizontal movement) with respect to the hook member 103 so as to face the side of the hook member 103. Then, the work take-out device 110 releases the grip of the work 120 to drop the work 120 on the hook member 103 and lock it.

[0004]

However, when the work is transferred from the work take-out device to the transfer device by dropping the work onto the hook member as described above, the work may be damaged or the hook member may be damaged by the drop. Problems such as dropping of the work may occur.

To cope with this, it is necessary to accurately position the lowering position of the hook member by the lifting device at an appropriate position with respect to the work holding portion, and to reduce a drop from the work holding portion to the hook member at the time of transferring the work. It is conceivable that the positioning of the lowering position of the hook member with respect to the workpiece gripping portion in this manner is a factor of lengthening the work transfer time. Further, improving the accuracy of the lowering position of the hook member causes an increase in equipment cost of the transfer device and an increase in maintenance man-hours.

[0006] A function of moving the work gripper up and down with respect to the hook member is added to the work take-out device, and the work is released when the work is lowered to a predetermined position with respect to the hook member, thereby releasing the work. It is conceivable to transfer the work without dropping it to the hook member.However, even in such a case, the work delivery time becomes longer, the equipment cost of the work take-out device increases, and the number of maintenance steps of the work take-out device increases. cause.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a transfer device that can transfer a work to a hook member quickly and reliably with a simple configuration.

[0008]

In order to solve the above-mentioned problems, a transfer device according to the present invention includes a hook member capable of locking a work, and a lifting device capable of moving the hook member up and down. An arm member one end of which is pivotally supported at the lower part of the elevating means, and a telescopic member whose one end is pivotally supported at a lower part of the elevating means at a predetermined distance from the arm member, Wherein the other end of the elastic member is rotatably connected to the other end of the arm member, and the hook member is suspended from the other end of the arm member.

In other words, according to the transfer device of the present invention, the hook member suspended from the arm member moves up and down while drawing an arc-shaped trajectory by the expansion and contraction of the expansion and contraction member. By positioning the work on the trajectory when the hook member is raised, the hook member locks and lifts the work.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. Drawings relate to an embodiment of the present invention, FIG. 1 is a front view of a transfer device, FIG. 2 is a side view showing a main part of the transfer device, FIG.
It is.

In FIGS. 1 and 2, reference numeral 1 denotes a transfer device for transferring a vehicle roof side member 2 as a work. The transfer device 1 includes a transfer device main body 4 that can move forward and backward on a rail 3 laid in an upper space in a factory.

The transporter main body 4 has a pair of rollers 4a at the upper part, and the pair of rollers 4a is suspended on the rail 3 by sandwiching the rail 3. The transporter body 4 is configured to advance and retreat on the rail 3 by driving means (not shown).

An elevating device 5 as an elevating means is provided at a lower portion of the transporter main body 4. The lifting device 5 includes an upper plate 6 connected to the transporter body 4.
And a lower plate 7 arranged below the upper plate 6, and the upper plate 6 and the lower plate 7
And a pantograph mechanism section 8 interposed between them to connect them. The pantograph mechanism 8 is vertically expanded and contracted by a driving unit (not shown) so as to move the lower plate 7 up and down with respect to the upper plate 6.

A hook mechanism 10 is provided below the lower plate 7. This hook mechanism 10
It comprises a pair of arm members 11, an air cylinder 12 as a telescopic member, and a pair of hook members 13 which can lock the roof side member 2 and hold it at the upper part.

One end of the arm member 11 is pivotally supported so as to be able to swing toward one lower side of the lower plate 7. One end of the air cylinder 12 is pivotally supported at a predetermined distance from the arm member 11 near the lower side of the lower plate 7 on the other side.

The other end of the arm member 11 and the other end of the air cylinder 12 are rotatably connected to each other via a connecting shaft 14.

Further, hook members 13 are swingably suspended from both ends of the connecting shaft 14. That is,
The hook member 13 is suspended from the other end of the arm member 11 via the connection shaft 14.

Here, reference numeral 20 in the drawing denotes a work take-out device for taking out the roof side member 2 from a work place or the like and transferring the roof side member 2 to the transfer device 1. The work take-out device 20 includes the roof side member 2
It is provided with a work holding part 21 capable of holding the workpiece.

The work holding portion 21 has a lower arm 22 capable of holding a work, and an upper arm 23 capable of holding the roof side member 2 placed on the lower arm 22 by being opened and closed so as to face the lower arm 22. And an air cylinder 24 for driving the upper arm 23 to open and close.
The work gripping part 21 is capable of moving forward and backward (horizontal movement) with respect to the transfer device 1.

Next, the operation of the transport device 1 having the above configuration will be described. The transport device 1 that has finished transporting the roof side member 2 first stops its movement at a predetermined work transfer position, and lowers the hook member 13 by the lifting device 5. At this time, the air cylinder 12 is in the extended state, and the hook member 13 is located at the lowest position with respect to the lower plate 7 (see the dashed line in FIG. 1).

When the roof side member 2 is taken out of a work place or the like by the work holding portion 21 of the work take-out device 20 and the taken-out roof side member 2 faces the side of the hook member 13, the transfer device 1 Then, the air cylinder 12 is driven in the contraction direction. Thus, the hook member 13 moves while drawing an arc-shaped trajectory. That is, the hook member 13 rises while approaching the roof side member 2.

The hook member 13 contacts the roof side member 2 during its movement. At this time, the work take-out device 20 drives the air cylinder 24 to open the upper arm 23 of the work holding portion 21, thereby releasing the roof side member 2, and the hook member 13 scoops the released roof side member 2.

According to such an embodiment, by moving the hook member 13 along an arc-shaped trajectory, the roof side member 2 is not dropped from the work holding portion 21 to the hook member 13 and the roof side member 2 is moved. Delivery of the member 2 can be performed.

That is, when the roof side member 2 is delivered, the hook member 13 is moved along an arc-shaped track, and the roof side member 2 located on this track is scooped up, so that the roof side member 2 is hooked up.
Can be transferred from the work take-out device 20 to the transfer device 1 without dropping.

Therefore, when the roof side member 2 is delivered, troubles such as the roof side member 2 being damaged or dropping from the hook member 13 can be prevented.

In addition, since the delivery is performed without dropping the roof side member 2 to the hook member 13, it is not necessary to position the lowering position of the hook member 13 by the lifting / lowering device 5 with higher accuracy than necessary. , A series of operations related to the delivery can be quickly performed.

Further, since it is not necessary to position the lowering position of the hook member 13 by the elevating device 5 with higher accuracy than necessary, it is possible to prevent an increase in equipment cost of the transport device 1 and an increase in the number of maintenance steps.

Further, since the hook mechanism 10 for moving the hook member 13 in an arc shape has a simple structure having a single air cylinder, the equipment cost of the transfer device 1 and the number of maintenance steps are increased. Can be prevented.

In the above-described embodiment, an example in which the transport device transports the roof side member as a work has been described, but the present invention is not limited to this. In addition, the number of the arm members and the hook members can be appropriately set according to the shape of the work to be conveyed.

[0030]

As described above, according to the present invention, it is possible to quickly and reliably transfer a workpiece to a hook member with a simple structure.

[Brief description of the drawings]

FIG. 1 is a front view of a transfer device.

FIG. 2 is a side view showing a main part of the transfer device.

FIG. 3 is an explanatory view showing a locus of a hook;

FIG. 4 is a front view of a conventional transport device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Conveying apparatus 2 ... Roof side member (work) 5 ... Elevating apparatus (elevating means) 6 ... Upper plate 7 ... Lower plate 8 ... Pantograph mechanism part 10 ... Hook mechanism part 11 ... Arm member 12 ... Air cylinder (elastic member) 13 ... hook member

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Kazuhiro Shimada 1-7-2 Nishi Shinjuku, Shinjuku-ku, Tokyo Fuji Heavy Industries Ltd. F-term (reference) 3D114 AA06 BA01 CA06 DA06 FA03 GA03 3F034 HA08 HB06 HB17 HC01 HD04 HE07 3F072 AA17 GD05 KA12 KD01 KD27

Claims (1)

[Claims] 1. A transfer device having a hook member capable of locking a work and elevating means capable of moving the hook member up and down, wherein one end is pivotally supported by a lower part of the elevating means so as to be swingable. An arm member; and a telescopic member, one end of which is pivotally secured to the lower part of the elevating means at a predetermined distance from the arm member, and the other end of the telescopic member at the other end of the arm member. Wherein the hook member is suspended from the other end of the arm member.