JPS5836424Y2 - Die set support structure in press machines, etc. - Google Patents

Description

[Detailed description of the invention] The present invention relates to an improvement of the die set support structure on the press table of a press machine such as a forging press. The purpose is to convert the resulting frictional resistance into rolling frictional resistance so that the die set can be replaced with a small amount of force.

Conventionally, when changing the die set during setup changes in this type of press machine, loading and unloading the die set has been carried out using an overhead crane, electric winch, etc. because a very large sliding frictional resistance is generated between the bottom surface of the die set and the top surface of the press table. , it is necessary to use a machine that generates a large amount of force, which complicates the work procedure and increases the preparation time.

The present invention has the configuration described in the claims of the utility model registration, thereby making it possible to easily replace the die set with a small force.

The configuration of the illustrated example will be explained below.

In the embodiment shown in FIGS. 1 and 2, a press table 1 of a forging press machine has a flat upper surface 2,
In addition, a plurality of slots 3 and 4 (in the illustrated example, two slots) having a convex cross-section are provided in parallel to each other and open on the upper surface 2.

In these slots 3 and 4, a rolling element support plate 5 is provided along the entire length thereof.
, 6 are inserted and arranged.

The rolling element support plates 5, 6 in the illustrated example have support frames 9, 10, 11.12 juxtaposed on the upper surface side of the horizontal substrates 7, 8, and supports perpendicular to the length direction of the support plates 5, 6. It has a structure in which a plurality of rollers 15 and 16, which are rolling elements, are rotatably supported by shafts 13 and 14.

The rollers 15 and 16, which are rolling elements, are indicated by the chain line 1 in FIG.
As shown in 7.18, a large number of rolling element support plates 5 and 6 are arranged at equal intervals over the entire length of the rolling element support plates 5 and 6.

It goes without saying that instead of rollers, the rolling elements may be balls in the form of pole bear tongues.

As shown in FIG. 2, the above-mentioned rolling element support plates 5 and 6 have a retracted position in which the circumferential surfaces of the rollers 15 and 16, which are rolling elements, do not protrude from the upper surface 2 of the press table 1, and The barrel rollers 15 and 16 are disposed in the slots 3 and 4 with a clearance in the vertical direction that allows them to occupy two positions, including a raised position in which the peripheral surfaces of the barrel rollers 15 and 16 protrude from the upper surface 2.

In the illustrated example, the above-mentioned clearance is the rolling element support plate 5.6.
is formed between the upper surface 19.20 of the horizontal substrate 7, 8 and the shoulder inner surface 21.22 of the slot 3, 4, said upper surface 19.2
The position where the rollers 15 and 16, which are rolling elements, abut against the shoulders 21 and 22 is the position where the rollers 15 and 16, which are rolling elements, protrude the highest from the 17th surface 2 of the brace staple 1.

The lower surfaces 23, 24 of the above-mentioned rolling element support plates 5, 6 and the slots 3
．． Between the bottom surface 25.26 of 4 and the bottom surface 25.26 of
0 is placed.

In the illustrated example, two rotating parts are arranged in each of the slots 3 and 4, but there may be three or more.

In addition, as will be described later, when the rotating part tension body is inflated, the number of the rolling element support plates 5 and 6 may be one as long as the posture of the rolling element support plates 5 and 6 can be controlled satisfactorily.

One end of the above-described rotating part tension members 27, 28, 29, and 30 is connected to a supply/discharge device 31 for pressurized fluid such as pressurized air, and the other end is hermetically closed with a plug 32 and a band 33.

When the rotational parts 27 to 30 are contracted,
As shown in FIG. 2, the rolling element support plates 5 and 6 occupy recessed positions where the rollers 15 and 16, which are rolling elements, do not protrude from one surface 2 of the press table 1. Pressurized fluid is supplied from 31, and the rotation parts 27 to 30
When the is expanded, the rolling element support plates 5, 6 are caused so that the upper surfaces 19, 20 of the horizontal substrates 7, 8 are aligned with the slots 3.
.

Since the support structure of the present invention has the above-described configuration, the die set 32 is arranged on the -L surface 2 of the press table 1, and the rolling element support plates 5 and 6 are arranged as shown in FIGS. In the state where it occupies the retracted position, the above-mentioned rotation part tension body 27~
When pressurized fluid such as air is supplied from the supply/discharge device 31 to the die set 30 and the die set 32 is expanded, the rolling element support plates 5 and 6 gradually rise as they expand, and finally reach the above-mentioned raised position. is lifted from the upper surface 2 of the press table 1 by rollers 15 and 16, which are rolling elements.

When the die set 32 is pushed in the direction of the slot 3.4 in this state, there is a gap between the die set 32 and the upper surface 2 of the press table 1 due to rolling of the rollers 15 and 16, which are rolling elements. Since only friction is generated, the die set 32 is moved with a small force.

Note that the reference numeral 33 in FIG. 1 is a valve control handle of the supply/discharge device 31 for pressurized fluid such as pressurized air.

After moving and removing the die set 32 as described above, placing the other die set on the top surface of the press table 1, pushing it to the fixed position and positioning it, operate the valve control handle 33 to remove the expanding die set. When the pressurized fluid in the part tension bodies 27 to 30 is discharged into the supply/discharge device 31, the part tension bodies 27 to 30
Due to the contraction, the rolling element support plates 5 and 6 are again brought to the retracted position shown in FIG. 2, and the new die set is securely placed on the upper surface 2 of the press table 1.

The die set support structure according to the present invention has the configuration and operation described above, and when replacing the die set 1~ placed on the flat upper surface of the press table, By raising and supporting the rolling elements, it is possible to change the frictional resistance between the table top surface and the die set to rolling friction, resulting in the effect that the die set can be moved with a small force.

In addition, structurally, there is a slot in the press table.
It is sufficient to provide the rolling element, its support plate, and the rotating part tension body, and to connect a supply/discharge device for supplying and discharging pressurized fluid to the rotating part tension body, so the equipment is relatively simple and the equipment cost is reduced. It also has the effect of lowering the

[Brief explanation of the drawing]

Figure 1 is a plan view of one example of implementation, Figure 2 is II in Figure 1.
-II line sectional view. 1...Press table, 2...Top surface,
3, 4...Slot hole, 5.6...Rolling element support plate, 15.16...Roller serving as rolling element, 23
, 24... Lower surface of rolling element support plate, 25.26.
. . . Bottom surface of the slot, 27 to 30 . . . Turning member, 31 . . . Pressurized fluid supply and discharge device.

Claims (1)

[Scope of utility model registration request] A press table of a press machine or the like is provided with a plurality of slots opening in parallel to each other on its flat upper surface, and a rolling element support plate is disposed within the slot, and the rolling element support plate A plurality of rolling elements are supported on the upper surface side, and the rolling element support plate has a raised position where the rolling elements protrude from the upper surface of the press table and a retracted position where the rolling elements do not protrude from the upper surface. It is arranged in the slot so that it can occupy two positions, and one end is connected to a pressurized fluid supply/discharge device between the lower surface of the rolling element support plate and the bottom surface of the slot. A hose-like ileal tension body with a closed end and a hose-like ileum tension body is disposed, and the rolling element support plate is configured to be raised to the raised position when the ileum tension body is expanded. Die set support structure in press machines, etc.