JPS61289926A - Press metal die - Google Patents

Abstract

PURPOSE:To automatically perform the punching intersecting at right angles with the slant face of a product by maintaining the clearance constantly by fitting to the lower die a product receiver and by revolving it upto the prescribed position by the pushdown pin of the upper die. CONSTITUTION:A product receiver 13 is supported rotatably to a supporting block 12 via a pin 14 on the lower die set 10. A product is inserted to this product receiver 13, which is turned onto the prescribed position with the pushdown pin 24 as the fulcrum by the pushdown pin 24 of the upper die at the press descent time. Then it reaches the die 11 being in the state of the work face intersecting at right angles with the operating direction of the press. In this case the stripper is bent, a punch 21 is projected and the punching a performed. The product receiver 13 is pushed up upto the original position by a pusher pin 15 according to the press ascending. The punching in the shape intersecting at rigt angles with the slant face of the product can be performed with this device.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a press mold for press working.

BACKGROUND OF THE INVENTION Conventionally, a mold for automatic press processing having a shape perpendicular to the slope of a product has a structure as shown in FIG.

Page 2, ie, FIG. 5, shows the structure of a conventional punch slide part. Reference numeral 1 denotes a stripper plate that guides the punch 2, and is fixed to a stripper base 3. 4 is fixed to the die set 5 and guides the stripper pace. 6 is a spring, and 7 is a slide that applies an axial force to the punch by a cam 8. 9 is Gui.

In the punch slide section configured as described above, the press descends and passes through the workpiece to the stripper plate 1.
When it hits the lower mold, the entire strip part--base 3 part bends and slides 7 into the cam 8.

Problems to be Solved by the Invention However, with this type of structure, it is difficult to maintain a constant clearance between the punch and die even when the thickness of the workpiece changes or when a foreign object is present between the stripper plate and the workpiece. The problem was that it could not be maintained. In addition, the structure of the three-vane structure with sliding punches was complicated, and repairs were troublesome in the event of a problem. That is, the position at which the stripper plate starts to deflect is not always constant because the stripper plate is connected to the die via the workpiece, and therefore the axes of the die and punch do not match.

SUMMARY OF THE INVENTION Therefore, the present invention provides a mold for processing a product into a shape perpendicular to the slope of the product without sliding the punch.

Means for Solving the Problems In order to solve the above problems, the present invention includes a punch that is fixed to an upper mold and can move up and down, and a punch that is provided opposite to the punch and holds the product so that the product can be processed by the punch. a product receiver rotatably attached to the lower die; and a push-down bin provided on the upper die for pushing down and rotating the product receiver, and configured so that the processing direction of the punch always coincides with the press operation direction. This is what I did.

Function: According to this type of device, the product part rotates as the press descends and moves to the predetermined processing position to perform processing, and the punch maintains a constant relationship with the die and only moves up and down with the movement of the press. It is.

As a result, even if there are variations in the thickness of the workpiece or the deflection of the stripper, the relationship between the punch and die is not affected.
Clearance will be maintained.

EXAMPLE An example of the present invention will be described below with reference to the attached drawings.

In FIG. 1, 10 is a die set in which a die 11 and a support block 12 are fixed; 13 is a product receiver rotatably supported on the support block 12 via a bin 14;
1δ is a pusher bin that is pressurized by a spring 16 and supports the product receiver 13, 17 is a push screw that fixes the spring 16, 18 is a punch plate 19, and a stripper bolt 2.
21 is the punch inserted into the punch plate, 22 is the stripper pole) 2
0 is supported by the upper die set 18, 23 is a spring that applies pressure to the stripper plate, and 24 is a push-down bin that is fixed to the stripper 5 base plate with a push screw 25 and pushes down the product receiver.

In the above structure, the 1M product is inserted into a pivotable product receiver, and when the press is lowered, the push-down bin of the upper mold causes the product receiver to pivot around the bin as a fulcrum. When it has swung to a predetermined position, it reaches a die whose processing surface is perpendicular to the direction of operation of the press. When it reaches the die, the stripper bends and the punch protrudes to perform punching. In addition, the product receiver is
As the press rises, it is pushed up to its original position by the pusher bin.

Effects of the Invention As described above, according to the present invention, a rotatable product holder that holds a product is provided, the product is moved to a predetermined rotational position, and the drilling direction of the product is set in the operating direction of the press. can be made parallel to As a result, the clearance can be maintained constant without complicating the punch part with a sliding mechanism.
It is possible to drill holes perpendicular to the slope of the product.

[Brief explanation of the drawing]

Page 6, Figure 1 is a cross-sectional view of a press mold according to an embodiment of the present invention, Figure 2 is a cross-sectional view of the lower die, Figure 3 is a plan view of the product, and Figure 4 is a cross-sectional view of the press mold in an embodiment of the present invention.
The figure is a sectional view of the same, and FIG. 6 is a sectional view of a conventional press die. 1o...Lower die set, 11...Die, 13...Product receiver, 18...Upper die set, 19...Punch plate , 21...
...Punch, 22...Stripper. Name of agent: Patent attorney Toshio Nakao and 1 other person/q
−＾o＞+rL−＞e(−−−,i,'nt22−−−SuLso,1・−42f JP-A-1-289926 (3) Fig. 3 ff U ” ＼ 〉−,−/ ,'?

Claims (1)

[Claims] In a mold for press working on the slope of a product, there is a punch that is fixed to the upper mold and can move up and down, and a punch that is installed opposite to the punch so that the product can be held and is attached to the lower mold. a pivotably mounted product receiver;
The press tool comprises a push-down pin provided on the upper mold for pushing down and rotating the product receiver, and the product receiver is provided so as to be pivotable so that the processing direction of the punch always coincides with the press operation direction. Type.