JPS5814013Y2 - Tools for setting the press mold on the press machine - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a tool used when setting a press die into a press machine.

Conventionally, in large press machines, the press die was set on the press machine's bolster in the following manner.

That is, as shown in FIG. 1, the upper surface 1a of the bolster 1
A plurality of T grooves 2, 2... are opened in and extend parallel to each other.
The center key 3 is held in advance in one of the press molds 4 and the press die 4 is suspended by a crane (not shown) via the wire 5 and the book 6.
While supporting the press mold 4 and the wire 5 with a human sling conductor 7 and one or two assistants 8, the crane is moved to open the center groove formed in the upper and lower center keys 3 and the bottom of the press mold 4. 9, and the press mold 4 was set or placed at a predetermined position on the bolster 1 as shown in FIG.

At this time, the U-shaped groove 10 formed on the bottom side wall of the press die 4 matches (communicates with) the rest of the T-grooves 2, 2, etc., so the fixing hole is inserted here. -11,1
1, etc., the installation of the press mold 4 is completed.

However, in order to use the center key 3 to set the press mold 4 in a predetermined position on the bolster 1 as described above, the center key 3 is difficult to see from the set workers 7 and 8, so the crane must be moved. It becomes difficult to guide the press mold 4 to a predetermined position.

In addition, if the press mold 4 is slightly tilted, it will be difficult for the center key 3 to enter the recess 9, but it will be difficult to set the press mold 4 while correcting the slight inclination. If the center key 3 is lowered, the center key 3 will break due to its weight, and the setting operation will have to be restarted from the beginning.

Furthermore, it is necessary to position the press mold 4 vertically and horizontally while moving it with a crane.
Since the three setting workers 7 and 8 must always support the press die 4 and the wire 5, the setting work requires a great deal of effort and time in addition to the above-mentioned matters.

This invention was made in view of the above points, and includes the following points:
To provide a tool by which a press mold can be quickly set by a small number of setting workers, including two people.

The invention will be explained below with reference to illustrated embodiments.

In FIGS. 3 and 4 showing the setting tool A according to the present invention, 12 is a guide holder, and 13 is a positioning pin.

The guide holder 12 includes a guide pipe 14 that can be fitted into the U-shaped groove 10 of the press mold 4, a flange 15 that is fitted into the upper end of the guide pipe 14, and a permanent magnet 16 that is integrally held by the flange 15. and a retaining ring 17 that is integrated with the upper surface of the flange 15 and has a smaller diameter than the guide pipe 14.

The permanent magnet 16 is integrally held in the flange 15 by being press-fitted into a through-hole 15a opened in the flange 15, or by making the permanent magnet 16 into a ring shape and fitting it onto the outer periphery of the flange 15. Both 15 and 16 may be integrated, or the flange 15 itself may be composed of a permanent magnet.

Further, each member 14, 15, 17 is preferably made of iron or a similar metal, but may be partially or entirely made of synthetic resin, rubber (preferably both are hard), etc. Good too.

Of course, each member 14, 15, 17 may be integrally molded.

The positioning pin 13 has a large diameter portion 13a and a small diameter portion 13b, and extends vertically through the force-aided holder 12.

That is, the large-diameter portion 13a, which has a diameter that can be fitted into the T-groove 2 of the bolster 1, is slidable within the guide pipe 14, and its lower end extends below the guide pipe 14.
A small diameter portion 13b connected to the large diameter portion 13a passes through the retaining ring 17 in a loosely fitted state and extends upward.

A circlip 18 is fitted into a fitting groove 13C formed on the outer periphery of one end of the small diameter portion 13b.

As a result, the stepped portion 13d of the large diameter portion 13a and small diameter portion 13b of the positioning pin 13 comes into contact with the retaining ring 17, thereby preventing the positioning pin 13 from coming off upward from the guide holder 12, and the circlip 18 is prevented from coming off downward by coming into contact with the retaining ring 17.

Therefore, the positioning pin 13 can move up and down relative to the guide holder 12 by the stroke shown in FIG. 2.

Next, a method of setting the press die 4 onto the bolster 1E using the tool A having the above configuration will be explained.

First, the press die 4 is suspended sufficiently above the bolster 1 by a crane, the guide pipe 14 of the tool A is inserted into multiple locations of the U-shaped groove 10, and the flange 15 is attached to the upper opening edge of the U-shaped groove 10. seated.

At this time, the tool A is temporarily fixed to the press die 4 by the permanent magnet 16, and the positioning pin 13 protrudes below the press die 4.

However, the tool A may be attached to the press mold 4 in advance before being suspended by a crane.

Next, the press die 4 is lowered slightly and the positioning pin 1 is
3 is brought into contact with the upper surface 1a of the bolster 1 as shown in FIGS. 5 and 7, and the upper end portions, that is, the small diameter portions 13b thereof respectively protrude above the guide holder 12 by an appropriate length.

As a result, the parallelism of the press die 4 to the bolster 1 can be almost accurately obtained, but the positioning pin 1
The amount of upward protrusion of 3 can be easily confirmed by the sling conductor 7 visually observing from diagonally above.

If the press die 4 is moved horizontally by a crane so as to be perpendicular to the T-groove 2 from the state shown in FIGS. It becomes immersed and becomes the state shown in Fig. 8.

When the sling conductor 7 visually observes this state, the press mold 4 is lowered and placed on the bolster 1 as shown in FIG. 9, and the setting of the press mold 4 is completed.

Once the setting of the press die 4 is completed, the press die 4 can be fixed to the bolster 1 with bolts 11 or the like in the same way as in the conventional case.

In the embodiment, the press die 4 includes a die set consisting of a punch holder 19, a die holder 20, and a guide post 21, and an upper die (punch) 2 held by the punch holder 19.
Although the present invention has been described as an assembly including a mold 2 and a lower mold (die) 23 held by a die holder 20, the present invention is not limited to this assembly.

As described above, according to the setting tool of the present invention, when the press mold is initially suspended by a crane, the setting operator can simply set the upward protrusion amount of the positioning pin to be visible to the operator. After that, the press mold can be set in a predetermined position on the bolster by moving the press mold horizontally and lowering it at the position where the positioning pin has been displaced downward, and the setting operator is one sling conductor or another person. It is sufficient to have one assistant for each set-up, and since these set-up workers do not need to support the press mold or the wire all the time, the press-mold setting work can be done in a short time with fewer people. Moreover, safety for the set workers is also improved.

In addition, since the setting tool is only temporarily fixed to the press die by a permanent magnet, even if the press die is tilted or a large force is applied to the tool, especially the positioning pin, the tool will It easily comes off from the press mold when subjected to force, so there is no damage to expensive press molds or bolsters.

Of course, for the same reason, it is extremely easy to attach and detach the tool from the press die.

[Brief explanation of drawings]

Figures 1 and 2 show the steps of a conventional press mold setting method, with Figure 1 being a front view, Figure 2 being a front view of main parts,
Fig. 3 is an external view of the setting tool according to the present invention, Fig. 4 is a vertical cross-sectional view of the setting tool according to the invention, and Figs. 5 to 9 show a press mold set using the setting tool according to the present invention. 5 is a front view thereof, FIG. 6 is a plan view of the main part of FIG. 5, and FIGS. 7 to 9 are front views of the main part. 1... Bolster (press machine) 4... Press mold, 12... Guide holder, 13...
...Positioning pin, 14...Guide pipe, 15
...Flange, 16...Permanent magnet, 1
7 stop 0゛ノ'') (strike 7... means) 18...
・Circlip

Claims (1)

[Scope of utility model registration request] A guide holder is formed by integrally forming a flange integrally provided with a permanent magnet at the upper end of a guide pipe extending vertically, and a positioning pin is inserted into the guide pipe and penetrates the guide holder. A press for a press machine, characterized in that a stopper means is provided between the positioning pin and the guide holder, the stopper means being fitted so as to be vertically movable and preventing the positioning pin from being pulled out or falling from the guide pipe. Tools for mold setting.