JPS59163036A - Construction of work receiving base of idle stage in transfer press - Google Patents

Abstract

PURPOSE:To facilitate taking out of flights, which are foldable in the conveying direction of a work from one end of a press die, to the outside of a press machine together with the press die by extending said flights to constitute the work receiving base of an idle stage. CONSTITUTION:Respectively a pair of flights 10A, 10B are extended from the one end part of bolsters 3a, 3b which are a press die toward the conveying direction of a work, and a receiving base 11 in an idle stage I 2 is constituted by said flights. The flights 10A, 10B consist of root parts 13 fixed via holders 12 to bolsters 3a, 3b and turnable and movable flight parts 14 hinged to the parts 13. The flight parts 14 are made foldable by means of piston rods 15a to be actuated by means of air cylinders 15. The bolsters 3a, 3b are then easily drawn out to the outside of the press machine in the stage of folding the flights 10A, 10B.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a workpiece pedestal structure for an idle stage in a transfer press.

In a transfer press equipped with a transfer mechanism, the transfer bar (feed bar) for transporting the workpiece moves two-dimensionally or three-dimensionally during each cycle of the press, thereby transferring the workpieces from all stages to the next stage at the same time. This is a method in which the sword is advanced sequentially by step-feeding, and its outline is shown in Figures 1 to 4. This is exemplified using a transfer press by Kanis Tates with s, -8, '6 stages, 1 is a corner upright installed at the four corners of the press machine M, and 2 is also a press machine. A center upright is installed in the center of M, 3a': j6 and 3b are press-type bolsters, and 4 is a cradle for an idle stage installed between the bolsters 3ae and 3b. A plurality of block gauges 5 are fixedly stacked on the workpiece pedestal 4, and flights 7 having receiving pieces 6 are removably attached to these block gauges 5. Note that the receiving piece 6 is attached to the flight 7 so that its position can be adjusted 11 times. By appropriately replacing the flight 7 with respect to the block gauge 5 as necessary, it is possible to handle a plurality of workpieces.

Further, 8 indicates a transfer bar, and fingers 9 for transporting the workpiece are attached to this transfer bar 8 for each stage (however, in Fig. 2, the fingers 9 for transporting the workpiece are (Fingers are not shown).

The transfer bar 8 can be divided into a sub-transfer bar 81) corresponding to the center upright 2 and a main transformer 7 aver 8a other than that from the dividing part 8C, for example. At the time of so-called setup support such as work change, the main transfer bar 8a can be pulled out in the horizontal direction together with the fin car 9 of each processing stage S, -S, and taken out of the press machine.

In this way, when there are relatively many force loe stages, it is normal for the center upright 2 to be useful in addition to the corner upright 1 due to the strength of the press machine M itself. This center upright 2
An idle stage A i is set at a position corresponding to , and the workpiece W to be transported from machining stage S3 to machining stage S4 is once transferred through idle stage E2. .

Furthermore, engineering. , (■), and () are idle stages set at the start and end portions of the press machine M.

However, in the above-mentioned transfer press, it is necessary to replace the flight 7 according to the shape of the workpiece when changing the setup such as changing the workpiece, but the bolsters 3a, 3b and the transfer bar 8 are removed from the outside of the press machine M. Although it is possible to perform predetermined setup work outside the machine by pulling it out, the work pedestal 4 of the idle stage cannot be pulled out of the press machine because the center upright 2 is an obstacle. Therefore, a worker must enter the machine and replace Flight 7. Therefore, there are problems in that the work is troublesome and it takes a long time to complete the setup.

This invention was made in consideration of the above point VC 14, and it is possible to pull out the pedestal together with the bolster outside the press machine without disturbing the original function of the cradle of the idle stage.
This provides a structure that allows the setup to be changed outside of the SS method.

For this purpose, in the present invention, the press-type bolster is folded from one end toward the workpiece conveyance direction.
A feature of the present invention is that a flexible flight is extended and used as a workpiece pedestal for the idle stage, and that the flight can be taken out of the press machine together with the press mold bolster by folding the flight at the time of setup change. .

Hereinafter, embodiments of the present invention will be described in detail based on the drawings. However, the same parts as in the conventional example are given the same reference numerals.

That is, FIGS. 5 and 6 show one embodiment of the present invention, and as shown in the figures, a press-type bolster 3a is used.
, a pair of flights 1OAti from one end of 3b, respectively.
The OB is extended in the workpiece conveyance direction, and these four mutually opposing flights constitute the workpiece pedestal 11 in the idle stage. These flights 10”5inB are holder 1
Base 13 fixed to bolster 3 ar3b via 2
and a rotatable EiJ flight part 14 connected to this base part 13 by a hinge connection, and the tip of a piston rod 15a of an air cylinder 15 which is a driving source is connected to the movable flight part 14. There is. As shown in FIG. 5 and FIG. 7, the movable flight part 14 is bent from the hinge part 6 to the rear by the operation of the air cylinder 15, so that the flight 10A and IOB as a whole can be substantially folded. Note that 17 is a work piece that is attached to the movable flight section 14 so that its position can be adjusted.

Here, as above, the valley flight 10 A t io
Dimensional relationships are established so that when B is folded, the tip of the movable flight part 14 is located closer to the bolster 3a or 3b than the divided part 8C, and each fly l' 10
This is to prevent the flight 1OA#1OB from interfering with the center upright 2 when the bolsters 3a+3b are pulled out of the press machine M with Ae to B folded.

Further, 18 is a guide rail laid in a portion corresponding to the idle stage air of the transfer bar 8, 19 is a slide base mounted on the guide rail 18, and 20 is attached to the slide base 19 for idle stage air. The slide base 19 can be moved by operating the air cylinder 21 as necessary using the fingers for transporting the workpiece.
slides on the guide rail 18, thereby making the finger 20 movable between the main tiger/X77 bar 8a and the sub transfer bar 8b.

Then, by moving each finger 20 to the main transfer bar 8a 9111 and pulling out the entire transfer bar 8 as described above, the fingers 20 for idle stage air can be moved to the center upright 2.
It is configured so that it can be taken out of the press machine M together with Kazuya's sword Loe stage S and the fin car 9 of S6 without interfering with the machine.

Therefore, according to the above configuration, idle stage I2
Looking only at the pedestal 11, the flight LOA, 1. All OBs are in a straight state and constitute the original pedestal ■1, and the workpiece W transported from the sword loestage is temporarily placed on the fly l-1OA, t.
It is placed on the workpiece receiving piece 17 of the OB, and is transported to another stage S4 by the fingers 20 in the next cycle operation.

On the other hand, when changing setups such as work changes, flight IO
A. When it is necessary to rearrange the IOB, the air cylinder 15 is operated in the opposite direction to bend the movable flight section 14 from the hinge section 16 into the folded state as shown in Figure 7. At this time, the tips of the i:IT dynamic flight portions 14 are located closer to the bolster 3a or 3b than the dividing portion 8c, respectively. At this time, as described above, the finger 20 is also moved in advance to the main transfer bar 8aGIll, and the connection with the sub transfer bar 8b is released, and as shown in FIG. and bolsters 3a, 3'b
Flight IOA by pulling it out of the simultaneous nibless machine M.

to B is taken out of the press machine M along with the bolsters 3a+3b without interfering with the center upright 2.

After taking the flights IOA and LOB out of the press machine M in this way, the connection with the holder 12 is released and the flight 1. OA, 1. Replace the OB with a new one.

As described above, according to this embodiment, since all the mechanisms except the sub transfer bar 8b can be taken out of the press machine, the flight LOA, l, (l Similarly to the fingers of the processing stage, B can be replaced outside the press machine. Fig. 8 shows another embodiment of the present invention. While the LOB is configured to be folded in a horizontal plane, in this embodiment, the flight to p'' t 10 B is configured to be folded in a vertical plane. That is, as shown in the figure, The base 13a of the flight 1OAI1.OB is provided diagonally upward from the side walls of the bolsters 3a and 3b, and the oTIiJJ flight part 14 is connected to the tip of the base 13a by a bottle connection, and an air cylinder is attached. 1
The movable flight part 14a is configured to be folded by vertically rotating the movable flight part 14a at 5b, and the same effects as in the previous embodiment can be obtained in this embodiment.

As is clear from the above description, according to the present invention, when learning the setup, the flight is folded toward the bolster so that the flight can be taken out of the press machine together with the bolster, thereby making it easier to replace the idle stage flight. This can also be done outside the press machine, improving work efficiency and reducing setup changes.
This has the effect of reducing the time required.

[Brief explanation of drawings]

Figure 1 is a front view schematically showing a conventional transfer press, Figure 2 is an explanatory plan view of Figure 1, Figure 3 is an enlarged view of the bag portion of Figure 2, and Figure 4 is a front explanatory view of Figure 413. , FIG. 5 is an enlarged plan view of the comfortable part showing an embodiment of the present invention, FIG.
Fig. 8 is an explanatory front view showing another embodiment of the present invention. 2... Center upright, 3a, 3b bolster (press type), LOA,
1. OB/Flight, 1 tow cradle, 14.14 a
'OI dynamic flight section, 15...air cylinder,'
7. Work Ukoma, M Press 1st Machine, ■, Idol Stage. Figure 6 W 3b (3a)

Claims (1)

[Claims] (1) In a transfer press equipped with a Breath 2iiHC stage, a collapsible flight is extended from one end of the press mold toward the workpiece conveyance direction to constitute a workpiece pedestal of the idle stage, and setup changeover is performed. A workpiece pedestal structure of an idle stage suitable for a transfer press, characterized in that the front d pillar light is sometimes folded toward the press die side so that the flight can be taken out of the press 1 together with the press die.