JP2507690Y2 - Attachment mounting device for work transfer device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an attachment mounting device for mounting an attachment for holding a work on a cross bar mounted between feed bars for transferring a work in a transfer press, for example.

[0002]

2. Description of the Related Art Conventionally, in a transfer press, an attachment for holding a work is attached to a crossbar provided in a direction perpendicular to a feed bar. Then, in this press machine, when the die is exchanged, the attachment is manually removed from the crossbar, placed on the die exchange carriage together with the die, and carried out of the press machine. And the attachment carried in the press together with the new mold,
It was manually attached to the crossbar.

An attachment (for example, a suction cup) having a plurality of work holders is attached to the crossbar, and it is very troublesome to manually attach each of them to a predetermined position of the crossbar. In addition, there is a problem that the mounting position is wrong and the mounting on the crossbar is incomplete.

Therefore, the applicant of the present invention filed Japanese Utility Model Application No. 1-122.
In No. 023, the engagement pin is slidably fitted and projected into the long holes formed on the both side surfaces of the crossbar, and the engagement pin is slid by the cylinder device in the crossbar, so that both sides of the attachment of the groove type cross section are attached. We proposed an attachment exchange device that attaches the attachment to the crossbar by applying it to the inclined surface of the formed engagement hook.

[0005]

However, according to the above conventional structure, the mechanical strength of the crossbar is reduced due to the large slot formed for the sliding of the engaging pin, and in order to prevent it, the meat of the crossbar itself is prevented. The thickness was increased and the reinforcement was attached. As a result, the weight of the crossbar is increased, and this increase in weight has been a major factor that impedes the operation speed of the transfer press.

Therefore, the present invention solves the above problems and provides an attachment mounting device in a work transfer device which can reduce the strength of the crossbar very little and which does not increase the weight of the transfer drive member such as the crossbar. The purpose is to

[0007]

In order to solve the above-mentioned problems, the present invention provides a carrier bar arranged between a pair of left and right drive bars with a detachable attachment mounting member having a work holding means, A plurality of suction holes and a mounting hole are formed on the mounting surface of the attachment mounting member of the transport bar, the suction mounting hole corresponding position of the attachment mounting member is formed in a flat shape, and a lock hole is provided at the mounting hole corresponding position. A fixing protrusion that can be fitted into the mounting hole is projected, and an adsorption air tube that communicates with the adsorption hole is arranged in the crossbar, and a lock pin that can be inserted into the lock hole of the fixing protrusion is output. It is provided with a means of leaving and leaving.

[0008]

In the above structure, when the attachment is mounted, the attachment mounting member is arranged at a fixed position, the mounting surface is directed to the transport bar side, and the transport bar is moved to the attachment mounting member side to be mounted on the transport bar. Move the attachment mounting members closer. Then, by sucking from the suction hole through the suction air tube, the fixed protrusion is fitted in the mounting hole, and both the mounting surfaces of the transport bar and the attachment mounting member are brought into close contact with each other. Then, the withdrawal means is driven to cause the lock pin to project and fit into the lock hole to fix the attachment attachment member to the transport bar. The attachment mounting member can be removed by holding the attachment mounting member on the holding means of the support base and pulling out the lock pin from the lock hole by the withdrawal means.

Therefore, it is not necessary to form a hole or the like having a large opening area in the carrying bar, which would reduce the strength of the carrying bar.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a transfer press work transfer device according to the present invention will be described below with reference to FIGS.

As shown in FIG. 4, between the uprights 1a of the transfer press machine 1, along the press line B, a plurality of lower molds 2a to 2e are arranged on the bolster plate 4a of the mold exchanging carriage 4 at regular intervals. (When replacing the mold, lower mold 2a ~
Upper molds 3a to 3e are placed on 2e. ) Is arranged, and the mold exchanging carriage 3 is movably arranged outside the press machine 1 while being guided by a rail 5a laid on the bed 5. A pair of left and right feed bars (an example of drive bars) 6 are arranged along both sides of the mold exchanging carriage 4 along the press line A. These feed bars 6 are driven by a feed bar driving device 7 arranged on the work discharge side. It is reciprocated and moved up and down in the direction of the press line A.

Between these feed bars 6, a plurality of cross bars (an example of a carrying bar) 8 are fixed along the press line A at regular intervals, or 9 around the axis.
A suction cup (an example of a work holder) 10 is attached to these crossbars 8 at a position corresponding to the work via an attachment attachment member 9 so as to be rotatable by 0 degrees.

As shown in FIGS. 1 to 3, the crossbar 8 is formed in a rectangular tube shape, and shaft portions 8a at both ends are rotatably supported by bearings 12 of the feedbar 6. And
The passive gear 13 fixed to the shaft portion 8a is the intermediate gear 15
Is connected to the drive gear 14 via the drive gear 14 and is attached to the output shaft of the rotating device 16 provided in the feed bar 6 on the drive gear 14 so that the crossbar 8 is rotatable about the axis. An attachment mounting device 2 for mounting an attachment mounting member 9 having a plurality of work holders such as suction cups 10 (FIG. 4) mounted on the crossbar 8.
1 is provided.

That is, the bottom plate 8c of the crossbar body 8b
At the center, a plurality of mounting holes 22 are formed at predetermined intervals in the length direction, and a plurality of suction holes 23 are formed at regular intervals in the length direction on both sides of the mounting hole 22. The hole 23 communicates with a rectangular tube-shaped adsorption air pipe 24 provided in the crossbar 8 along the arrangement direction of the adsorption holes 23.
The suction air pipes 24 are connected to each other, and the air discharge pipes 25 joined together into one suction air pipe 24 are connected to an external suction pipe 10 air pipe via a rotary joint 25a.

On the other hand, the attachment mounting member 9 is
The crossbar body 8b is formed in a flat plate shape (at least the corresponding positions of the suction holes 23 are planar) that can be abutted on the bottom plate 8c (mounting surface), and at the corresponding positions of the mounting holes 22 of the mounting surface 9a, Fixed protrusions 26 that can be fitted into the mounting holes 22 are provided in a protruding manner, and lock holes 27 are formed at the tip ends of the fixed protrusions 26 in the longitudinal direction of the crossbar 8.

In addition, in the vicinity of the mounting hole 22 in the crossbar 8, there are arranged a retracting cylinder device 28 (which may be a linear actuator), which is an example of a retracting means, and the output rod thereof has the lock hole. A lock pin 29 is provided which can be fitted to 27.

Therefore, the bottom plate 8c of the crossbar body 8b and the mounting surface 9a of the attachment mounting member 9 are brought into close contact with each other by the negative pressure air acting through the suction hole 23, and the fixing projection 26 is inserted into the mounting hole 22. Insert and project,
By fitting the lock pin 29 into the lock hole 27 of the fixing protrusion 26 by the retractable cylinder device 28, the attachment mounting member 9 can be firmly attached and fixed to the crossbar 8.

A mounting operation of the attachment mounting member 9 having the above-mentioned structure will be described. When changing the work, the upper and lower molds 2a to 2e and 3a to 3e are carried out to the outside of the press machine 1 by the mold exchanging carriage 3, and the upper and lower molds 2a to 2 used next.
e, 3a to 3e are loaded onto the press line A by the mold exchanging cart 3. Then, at this time, as shown in FIG. 5, the attachment mounting member 9 having the suction cup 10 corresponding to the mold, that is, the work to be press-molded, is attached to the support base 31 provided on the side portion of the lower molds 2a to 2e. It is held by a gripping device (not shown) so as not to interfere with other members while being rotated by 90 degrees.

From such a state, the crossbar 8 is rotated 90 degrees by the rotating device 16 to direct the bottom plate 8c to the attachment mounting member 9 side, and then the feedbar driving device 7 is driven to attach the crossbar 8 to the attachment mounting member. 9 and the cross bar 8 is attached to the attachment mounting member 9
It moves to the side and approaches the attachment mounting member 9.
Next, the suction air tube 24 is set to a negative pressure, the attachment mounting member 9 is sucked by the suction hole 23 to fit the fixed projection 26 into the mounting hole, and the bottom plate 8c is attached to the mounting surface 9a of the attachment mounting member 9. After the close contact, the retractable cylinder device 28 is advanced to fit the lock pin 29 into the lock hole 27 of the fixed protrusion 26. As a result, the attachment mounting member 9 can be firmly attached to the crossbar 8. Then, the gripping device of the support base 31 is released, the crossbar 8 is moved, and the crossbar 8 is inverted 90 degrees to return to the use state.

When the attachment mounting member 9 is to be removed, the attachment mounting member 9 can be removed by holding the attachment mounting member 9 by the holding device of the support base 31 and pulling out the lock pin 29 from the lock hole 27 by the retractable cylinder device 28. .

It should be noted that, in the above attachment replacement work, the lifting stroke of the feed bar 6 is small and the support base 3
If you cannot descend to 5, please apply
It is also possible to use the attachment exchange device (not shown) proposed in No.

FIG. 6 shows another embodiment, in which the crossbar 8 is fixed to the feedbar 6 without rotating around the axis. Then, as shown in phantom lines in FIG. 5, the attachment / detachment work is performed by the attachment mounting member 9 held on the support base 32 on the upper molds 3a to 3e in the same posture as the usage state.
It is sufficient to drive the feed bar driving device 7 so that the cross bar 8 faces above the attachment mounting member 9 and descends.

[0023]

As described above, according to the configuration of the present invention, when mounting the attachment, the attachment mounting member is arranged at a fixed position with the mounting surface facing the transport bar side, and the transport bar is attached to the attachment mounting member side. To move the attachment mounting member closer to the mounting surface of the transport bar. Then, by sucking from the suction hole through the suction air tube, the fixed protrusion is fitted into the mounting hole,
The attachment mounting member can be firmly fixed to the transport bar by bringing both the mounting surfaces of the transport bar and the attachment mounting member into close contact with each other, and driving the retracting means to project the lock pin into the lock hole. . Further, the attachment mounting member is detached by holding the attachment mounting member on the holding means of the support base and pulling out the lock pin from the lock hole by the withdrawal means.
It can be removed.

Therefore, it is not necessary to form a hole or the like having a large opening area in the carrying bar which causes a decrease in strength, so that the decrease in strength of the carrying bar can be extremely reduced, and the weight of the carrying bar is significantly increased. In addition, it does not hinder the speeding up of driving. Further, by using the drive source of the suction cup as the holding means, that is, negative pressure air, the attachment mounting member is sucked and sucked through the suction hole and the fixing projection is fitted into the mounting hole, so that a reliable close contact is realized. Then, the next lock pin can be easily inserted.

[Brief description of drawings]

FIG. 1 is a partial front sectional view showing an embodiment of an attachment mounting device according to the present invention.

FIG. 2 is a partial plan cross-sectional view of the attachment mounting device.

3 is a cross-sectional view taken along the line AA shown in FIG.

FIG. 4 is an overall plan view of the transfer press of the same embodiment.

FIG. 5 is a schematic explanatory view showing a work of mounting the attachment mounting member.

FIG. 6 is a partial cross-sectional view showing another embodiment.

[Explanation of symbols]

 1 Transfer press machine 6 Feed bar 8 Cross bar 9 Attachment mounting member 10 Suction cup 21 Attachment mounting device 22 Mounting hole 23 Suction hole 24 Suction air tube 26 Fixing protrusion 27 Lock hole 28 Exit cylinder device 29 Lock pin

Claims (1)

(57) [Scope of utility model registration request] 1. A transport bar arranged between a pair of left and right drive bars is provided with a detachable attachment mounting member having a work holding means, and a plurality of suction holes are provided on a mounting surface of the attachment mounting member of the transport bar. And a mounting hole are formed, and a position corresponding to the suction hole of the attachment mounting member is formed in a planar shape, and a fixing projection that has a lock hole at the position corresponding to the mounting hole and can be fitted into the mounting hole is provided. In the crossbar, a suction air tube communicating with the suction hole is arranged, and a retracting means capable of retracting a lock pin that can be inserted into the lock hole of the fixed protrusion is provided. Attachment mounting device in the transport device.