JPS6317547Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to the structure of a horizontal die attachment portion to a vertical die attachment surface of a horizontal forging machine.

Figure 1 shows the mold attachment part for the slide of a conventional horizontal forging machine, and as a typical example,
One example is the one published in Japanese Patent Publication No. 54-23906. In this item, 1 is the slide of the forging machine, which moves left and right as shown in Fig. 1. Reference numeral 2 denotes a mold such as a punch holder, and this mold is integrally fixed to the base plate 3 by a plurality of bolts 4 and nuts 5.

6 is a mold mounting surface of the slide 1, which is a vertical plane.

A plurality of stud bolts 8 are fixed to this mounting surface 6, and a plurality of holes 9 into which these bolts 8 are inserted are provided in the base plate 3. Each bolt 8 is inserted into this hole 9, and the base plate 3 is attached. The base plate 3 is pressed and fixed to the mounting surface 6 by a nut 10 which is brought into close contact with the surface 6 and screwed into a bolt 8.

That is, since the base plate 3 is always fixed to the mounting surface 6 integrally with the mold 2, the base plate 3 can be said to be a part of the mold. Further, the mold 2 may be directly attached to the mounting surface 6 in some cases.

In such a conventional structure, when attaching or detaching the mold 2, it is necessary to remove the nuts 10 from each bolt 8 and attach or detach the bolt 8 to the hole 9 of the base plate 3. Therefore, it is necessary to suspend the heavy mold 2 together with the base plate 3 while moving the mold 2 in the horizontal direction, which takes time to attach and remove, and there is a risk of damaging the mold 2 etc. There are problems such as being dangerous.

In addition, FIGS. 2 and 3 show a mold 1 such as a die block for a frame 11 of a conventional horizontal forging machine.
In this case, the bolts 14 loosely fitted into the plurality of holes 13 provided in the mold 12 are screwed into the plurality of threaded holes 15 in the frame 11, and the large diameter heads 16 of the bolts 14 are used to secure the mold. In this case, each bolt 14 is tightened to the frame 1.
Mold 12 is attached to frame 1 unless it is completely removed from frame 1.
It cannot be removed from 1.

Therefore, in this case as well, there is a risk of losing the removed bolts 14, and there is also the problem that it takes time and effort to align the holes 13 of the mold 12 with the screw holes 15 of the frame 11 when installing the mold 12.

The purpose of this invention is to provide a mold mounting structure for a horizontal forging machine that can speed up the installation and removal when changing molds.

The configuration of this invention is that in a horizontal forging machine, a horizontal mold is placed against a vertical mold mounting surface and secured with bolts. T inserted from above
A vertical groove with a shaped cross section is formed at an appropriate depth from the upper end of the mounting surface, and a notch is provided in the lower part of the mold to fit from above into a stud projecting from the mold mounting surface. A nut for crimping the mold to the mold mounting surface is screwed into the stud bolt and the mounting bolt.

This invention has the above structure, so that when the nut screwed into the mounting bolt inserted into the horizontal insertion hole in the upper part of the mold and the nut screwed into the stud bolt fixed to the mounting surface are loosened, the metal By simply lifting and lowering the mold vertically just in front of the mounting surface, the notch at the bottom of the base plate and the stud bolt on the mounting surface will engage and disengage, and the large diameter head of the mounting bolt attached to the mold will be connected to the mold mounting surface. It engages and disengages from the vertical groove at the top of the.

Therefore, there is no need to move the mold horizontally as in the conventional examples shown in FIGS. The mold can be firmly attached by simply screwing in the nuts screwed into each bolt.
Therefore, it is easy to attach and detach the mold, the time required for attaching and detaching is shorter than before, and there is no risk of damaging the mold, etc., and it is safe.

In addition, with the conventional structure, the mold could not be removed without removing the nut from the bolt, so there was a risk of losing the nut, but with this design, it can be installed and removed without removing the nut, so there is no risk of losing the nut. There are effects such as no

Examples of this invention will be described below with reference to FIGS. 4 to 8.

Figures 4 to 6 are the same slide 1 as Figure 1.
When mounting the base plate 3 of the mold 2 on the mold mounting surface 6 of , 21 is a horizontal insertion hole provided in the upper part of the base plate 3, 22 is a mounting bolt inserted into this insertion hole, and 23 is a large diameter head thereof. It is rectangular. This head 23 is on the slide 1 side,
A nut 24 is screwed into the end of the bolt 22 protruding to the outside of the base plate 3.

26 is a vertical groove provided at the upper end of the slide 1;
It has a T-shaped cross section as shown in the figure, and the large-diameter head 23 of the bolt 22 is loosely fitted into the large-diameter portion a of the bolt 22 in a non-rotatable manner, and the bolt 22 is loosely fitted into the small-diameter portion b.

27 is a screw hole 2 provided on the mounting surface 6 of the slide 1
The stud bolt 28 screwed into the bolt 5 is a notch provided at the lower end of the base plate 3, into which the bolt 27 loosely fits, and whose width is smaller than the diameter of the nut 29 screwed into the bolt 27.

In this embodiment, when the nuts 24 and 29 are loosened and the plate 3 is lifted vertically using the hanging ring 30 on the base plate 3, the bolt 22 rises together with the nut 24 while remaining attached to the plate 3. The bolt 27 remains fixed to the slide 1.

Also, during installation, when the nuts 24 and 29 are loosened and the plate 3 is lowered along the mounting surface 6, the head 23 of the bolt 22 is inserted into the large diameter portion a of the vertical groove 26.
The bolt 22 fits into the small diameter portion b, and at the same time, the bolt 27 engages with the notch 28 at the lower end of the plate 3. Therefore, in this state, the nuts 24 and 29 are tightened to fix the plate 3 to the mounting surface 6.

7 and 8 show the case where the mold 12 is fixed to the frame 11, and the plate 3 shown in FIGS.
An insertion hole 21 and a notch 28 similar to those shown in FIG.

Also, the frame 11 has a T like the slide 1.
A vertical groove 26 in the cross section of the mold and a stud bolt 27 are provided, and a nut 29 is screwed into this bolt 27.

In this case as well, the attachment and detachment of the mold 12 to and from the frame 11 is the same as in the cases shown in FIGS. 4 to 6, and the attachment and detachment operations are much easier and faster than in the conventional examples shown in FIGS. 2 and 3. I can do it.

[Brief explanation of the drawing]

Figures 1 and 2 are longitudinal sectional side views showing examples of conventional mold mounting structures, Figure 3 is a partially cutaway front view of Figure 2, and Figure 4 is an example of the mold mounting structure of this invention. Figures 5 and 6 are partially cutaway perspective views of the main parts of the same, Figure 7 is a vertical side view showing another example, and Figure 8 is a partially cutaway front view of the same. be. 1... Slide, 2, 12... Mold, 6... Mold mounting surface, 11... Frame, 21... Insertion hole,
22...Mounting bolt, 23...Large diameter head, 24,
29... Nut, 26... Vertical groove, 27... Stud bolt, 28... Notch.

Claims (1)

[Scope of utility model registration request] In a horizontal forging machine that has a structure in which a horizontal mold is placed against a vertical mold mounting surface and secured with bolts,
Forming a vertical groove with a T-shaped cross section at an appropriate depth from the upper end of the mounting surface into which the large diameter head of the mounting bolt inserted into the horizontal insertion hole in the upper part of the mold fits from above,
A notch is provided in the lower part of the mold to fit a stud bolt protruding from the mold mounting surface from above, and a nut for crimping the mold to the mold mounting surface is provided in the stud bolt and the mounting bolt. Mold mounting structure of screwed horizontal forging machine.