KR20170022593A - Press - Google Patents

Abstract

The present invention provides a press, which comprises: a main bolster; a clamping unit arranged to protrude in an upper side of the main bolster; and a sub-bolster arranged on the main bolster, and having a clamping groove into which the clamping unit is inserted.

Description

Press {PRESS}

The present invention relates to a press whose structure is improved in consideration of compatibility so that a different mold can be replaced.

Generally, a press is a machine for forming a metal sheet into a desired shape by pressing a material between molds.

1 is a schematic view of a lower part of a press according to the prior art.

1, a conventional press 10 includes a main bolster 12, a wear plate 13 and a sub bolster 11 disposed on a bed (not shown) A mold (not shown) is disposed.

The position of the wear plate 13 on the cushion is fixed according to the position of the pin hole of the sub bolster 11 and the cushion pin 15 is seated on the wear plate 13. [

The wear plate 13 is assembled on the upper surface of the cushion. When the cushion is operated up and down, the cushion pin 15 operates up and down according to the movement of the cushion.

The sub bolster (11) is fastened to the main bolster (12) through fastening means such as bolts (14).

1 (a) and 1 (b), there is a problem in that it is not compatible with one press 10 when the positions of the pin holes of the sub bolster 11 where the dissimilar molds are arranged are different.

In addition, since the sub bolster 11 is fixed by fastening the bolts 14, there is a problem that it takes much time to replace the sub bolster 11.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a press capable of using a heterogeneous mold as a single press and quick and easy replacement of the dissimilar mold.

In order to achieve the above object, A clamping unit protruded above the main bolster; And a sub bolster disposed on the main bolster, the sub bolster including a clamping groove into which the clamping unit is inserted.

In addition, at least two or more of the clamping units may be disposed in the main bolster, and the clamping grooves may be formed corresponding to the number of the clamping units.

The clamping unit may include a driving unit; A shaft that receives rotational force from the driving unit; And a locking part disposed at a free end of the shaft and formed in a rectangular parallelepiped shape.

Further, the locking portion may be formed integrally with the shaft.

The length of the short side of the locking part may be the same as the diameter of the shaft.

The clamping groove may include a first groove formed in the lower side of the sub bolster in the upper side direction and having a short side corresponding to a diameter of the shaft or a short side of the locking part and a long side corresponding to a long side of the locking part; And a second groove extending in the first groove and having a short side corresponding to a long side of the locking portion.

In addition, the length of the first groove in the upper side direction from the lower side of the sub bolster may be formed to correspond to the length of the shaft.

In addition, the main bolster may be a moving bolster frame.

A bed disposed below the main bolster; A wear plate disposed between the main bolster and the bed; And a cushion disposed below the wear plate.

The abrasion plate and the bed may be integrally formed.

The present invention can provide a clamping unit and a bolster improved in structure to correspond to the clamping unit, so that the compatibility of the two molds can be made quickly and easily in a single press.

Further, since the fastening positions of the cushion pins are different from each other, the present invention can realize an integrated wear plate instead of a conventional discrete wear plate, so that a different mold can be used in a single press.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic illustration of a lower part of a press according to the prior art,
Figure 2 schematically illustrates a press according to an embodiment of the present invention,
3 is a sectional view for explaining the use state of the clamping unit according to the embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Unless defined otherwise, all terms used herein are the same as the generic meanings of the terms understood by those of ordinary skill in the art, and where the terms used herein contradict the general meaning of the term, they shall be as defined herein.

It is to be understood, however, that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to be &

FIG. 2 is a view schematically showing a press according to an embodiment of the present invention, and FIG. 3 is a sectional view for explaining a use state of a clamping unit according to an embodiment of the present invention.

Referring to FIGS. 2 and 3, the press 100 according to the embodiment may include a main bolster 120, a clamping unit 125, and a sub bolster 110.

The press 100 according to the embodiment includes a bed 140 disposed below the main bolster 120, a wear plate 130 disposed between the main bolster 120 and the bed 140, And a cushion 150 disposed on the lower side of the body 130.

The main bolster 120 may be a moving Bolster frame, and in the case of the moving Bolster frame, it may be disposed on the bed 140 in a sliding manner.

The clamping unit 125 may protrude above the main bolster 120 and may be disposed on the main bolster 120 at least two.

Specifically, the clamping unit 125 includes a driving unit 125a, a shaft 125b that receives a rotational force from the driving unit 125a, and a locking member 125c disposed at the free end of the shaft 125b, And a portion 125c.

Here, the driving unit 125a may provide the shaft 125b with not only the rotational force, but also a moving force capable of moving up and down.

The shape of the locking part 125c is not a rectangular parallelepiped but may be a shape that does not come out from the clamping groove 111 which will be described later by rotation. The first groove 111a of the clamping groove 111, which will be described later, 125c, respectively.

For example, the locking part 125c may be formed in a triangular shape when viewed from above, and the first groove 111a may be formed to correspond to the shape of the locking part 125c.

The locking portion 125c may be formed integrally with the shaft 125b to further improve the reliability of the fixing force of the sub bolster 110 to be described later.

When the locking portion 125c is formed as a rectangular parallelepiped, the length of the short side viewed from above the locking portion 125c may be the same as the diameter of the shaft 125b or smaller than the diameter of the shaft 125b Or larger.

The sub bolster 110 is disposed on the main bolster 120 and may include a clamping groove 111 into which the clamping unit 125 is inserted.

Therefore, the sub bolster 110 in which the mold 160 is disposed on the upper side can be quickly and reliably replaced and fixed by the clamping unit 125 and the clamping groove 111.

Specifically, the clamping grooves 111 may be formed corresponding to the number of the clamping units 125, and include a first groove 111a and a second groove 111b.

The first groove 111a is formed on the lower side of the sub bolster 110 in the upper side direction and the short side corresponds to the diameter of the shaft 125b or the short side of the locking part 125c, And may be formed to correspond to the long side of the portion 125c.

The second groove 111b is extended from the first groove 111a and has a short side corresponding to a long side of the locking part 125c.

The length of the first groove 111a in the upper side direction from the lower side of the sub bolster 110 may be set to correspond to the length of the shaft 125b.

Therefore, the sub bolster 110 can be quickly replaced with the main bolster 120 by the clamping unit 125 and the clamping groove 111, and can be firmly fixed.

The wear plate 130 is assembled on the upper surface of the cushion 150. When the cushion 150 is operated up and down, the pin of the cushion 150 operates up and down according to the movement of the cushion 150.

In addition, the wear plate 130 and the bed 140 may be integrally formed.

Referring to Fig. 3, the clamping structure according to this embodiment is as follows.

Referring to FIG. 3 (a), a portion of the shaft 125b protruding from the main bolster 120 and a locking portion 125c are inserted into the clamping groove 111 of the sub bolster 110.

Here, the shaft 125b may extend to a length at which the lower surface of the locking portion 125c starts the second groove 111b by the driving portion 125a. When the shaft 125b is configured to rotate only, the first groove 111a may be formed to correspond to the length of the shaft 125b.

3 (b), when the shaft 125b is rotated by the driving portion 125a, the locking portion 125c also rotates to rotate the locking portion 125c on the starting surface of the second groove, As shown in Fig.

The sub bolster 110 is firmly fixed to the main bolster 120. When the sub bolster 110 is replaced, the sub bolster 110 is moved in the reverse order of FIG. 3 (b) .

Here, although the embodiment has been described with respect to the lower bolster disposed on the bed 140, it is not limited thereto.

2, the upper portion of the press may include an upper mold 170, an adapter plate 180 and a slide plate 190, and the upper adapter plate 180 and the slide plate 190 may also include a tact And may include a clamping unit 125 and a clamping groove 111.

In other words, the press 100 according to the embodiment includes the rotatable clamping unit 125 and the corresponding seating structure of the sub bolster 110, and the fastening position of the pin of the cushion 150 is improved, Since the plate 130 can be provided, the compatibility for replacement of the different molds is improved, and the replacement can be performed quickly.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined by the appended claims. Range and its equivalent range.

100: press 110: sub bolster
111: clamping groove 111a: first groove
111b: second groove 120: main bolster
125: Clamping unit 125a:
125b: shaft 125c:
130: wear plate 140: bed
150: cushion 160: lower mold
170: upper mold 180: adapter plate
190: slide plate

Claims (10)

Main bolster;
A clamping unit protruded above the main bolster; And
And a sub bolster disposed on the main bolster, the sub bolster including a clamping groove into which the clamping unit is inserted.
The method according to claim 1,
Wherein the clamping unit is disposed on at least two of the main bolts, and the clamping grooves are formed corresponding to the number of the clamping units.
The method according to claim 1,
The clamping unit includes a driving unit;
A shaft that receives rotational force from the driving unit; And
And a locking portion disposed at a free end of the shaft and formed in a rectangular parallelepiped shape.
The method of claim 3,
Wherein the locking portion is formed integrally with the shaft.
The method according to claim 3 or 4,
Wherein a length of a short side of the locking part is formed to be equal to a diameter of the shaft.
The method of claim 3,
The clamping groove
A first groove formed on the lower side of the sub bolster in an upper side direction and having a short side corresponding to a diameter of the shaft or a short side of the locking part and a long side corresponding to a long side of the locking part; And
And a second groove extending from the first groove and having a short side corresponding to a long side of the locking portion.
The method according to claim 6,
And the length of the first groove in the upper side direction from the lower side of the sub bolster corresponds to the length of the shaft.
The method according to claim 1,
Wherein the main bolster is a moving Bolster frame.
The method according to claim 1,
A bed disposed below the main bolster;
A wear plate disposed between the main bolster and the bed; And
And a cushion disposed below the wear plate.
10. The method of claim 9,
Wherein the wear plate and the bed are integrally formed.

Images