JPH02290633A - Press equipment for trimming working - Google Patents

Abstract

PURPOSE:To improve the productivity by providing a first cutting edge and a second cutting edge in a state that partial side faces are brought into contact with each other and executing the cutting, in the case of cutting a peripheral edge of a work from the multi-direction. CONSTITUTION:When a pad 3 holds a work W on the lower die 1, a positioning pin provided on one of the pad 3 or the lower die 1 is fitted into the other positioning hole and positioning of the pad 3 is executed. When the upper die 2 further descends, a partial peripheral edge of the work W is cut from the upper part by a first cutting edge 5. A hanging cam 6 comes into contact with a wear plate 14 and moved in the horizontal direction by a cam drive 13, and together with an integral descent with the upper die 2, a second cutting edge 12 comes into contact with the peripheral edge end face of the other part of the pad 3, descends in the diagonal lower part, and by the cutting edge 12, the peripheral edge of the other part of the work W is cut. In this case, a first cutting edge 5 and a second cutting edge 12 are provided in a state that partial side faces are brought into contact with each other, and it does not occur that both the edges interfere with each other and the work can be cut simultaneously and satisfactorily.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a trimming press device that cuts the peripheral edge of a work from multiple directions.

(Prior art) Generally, in the trimming process of cutting the periphery of a workpiece, the entire periphery of the workpiece is cut at once from a direction substantially perpendicular to the workpiece surface, but when the shape of the workpiece has undulations, For example, the workpiece may be cut from two directions, or from multiple directions, such that the cut surface is approximately perpendicular to the workpiece surface for each peripheral edge of the workpiece.

(Problem i to be Solved by the Invention) However, when cutting the circumferential edge of the workpiece from multiple directions as described above, the circumferential edge of the workpiece is cut from one direction using a trimming press device in each of a plurality of steps. For this reason, there have been problems in that equipment costs and expenses are high and productivity is poor.

The present invention has been made in view of the above, and an object of the present invention is to provide a press device for trimming that can cut the peripheral edge of a workpiece from multiple directions at once. It is.

(Means for Solving the Problems) In order to achieve the above object, the solving means of the present invention is a trimming press device that cuts the peripheral edge of a work from multiple directions, and has the following configuration.

In other words, there is a lower mold on which the workpiece is placed, an upper mold that is movable up and down above the lower mold, and a lower mold that is supported so as to be movable vertically relative to the upper mold. A pad that presses the workpiece above, a first cutting blade attached to the upper die in contact with the peripheral end surface of a part of the pad, and a first cutting blade that presses the upper part so as to approach and move away from the peripheral edge of the other part of the pad. A hanging cam provided so as to be relatively displaceable in the horizontal direction with respect to the mold, a second cutting blade provided on the hanging cam, and a second cutting blade provided on the lower mold to move the hanging cam when the upper mold is lowered. The pad is provided with a cam drive that moves the cutting blade of No. 2 in the horizontal direction so as to come into contact with the peripheral end surface of the pad.

The first cutting blade and the second cutting blade are arranged so that some of their side surfaces are in contact with each other.

(Function) With the above configuration, in the present invention, when the upper die is lowered, after the workpiece on the lower die is pressed from above by the pad,
The first cutting blade descends together with the upper die while being in contact with the peripheral end surface of a portion of the pad, and the peripheral edge of the portion of the workpiece is cut from above by this cutting blade. In addition, the hanging cam that descends together with the upper mold comes into contact with the cam drive and is moved horizontally by the cam drive, so that it approaches the work from diagonally above. The provided second cutting blade comes into contact with the peripheral edge end surface of the other part of the pad and descends diagonally downward while maintaining the contact state, and the peripheral edge of the other part of the workpiece is cut diagonally from above by this cutting blade. Here, the first cutting blade and the second cutting blade are provided with their side surfaces partially in contact with each other, so that the two cutting blades do not interfere with each other, and the workpiece can be cut from each other. can be cut simultaneously and efficiently.

(Example) Embodiments of the present invention will be described below based on the drawings.

FIG. 1 shows a trimming press apparatus A according to an embodiment of the present invention. This press device A is used to simultaneously cut one end and both side edges of a workpiece W as shown in FIG.

In FIG. 1, 1 is a lower mold having a placing part 1a on which a workpiece W is placed, and 2 is an upper mold provided above the lower mold 1 so as to be movable up and down by a driving means (not shown). A pad 3 is supported on the upper mold 2 at a portion facing the mounting portion 1a of the lower mold 1 via an elastic support member 4 so as to be relatively movable in the vertical direction.

The pad 3 is used to press down the workpiece W on the lower die 1 during cutting (when the upper die 1 is lowered).

The elastic support member 4 has a support rod and a spring (not shown), and normally supports the pad 3 at a predetermined distance M (the length of the support rod) from the upper mold 2 by the biasing force of the spring. When the pad 3 presses the workpiece on the lower die 1 during cutting, the pad 3 and the upper die 2 come relatively close to each other, allowing the upper die 2 to descend.

Further, a first cutting blade 5 is attached to the upper mold 2 in a state in which it is in contact with a part of the peripheral end surface of the pad 3 (the right side edge in the figure), and the other part of the pad 3 The hanging cam 6 is opposite the peripheral edge (left side edge in the figure) of the elastic support member 7.
It is provided so that it can be relatively displaced in the horizontal direction via. The elastic support member 7 is inserted into an insertion hole 8 formed in the upper die 2 and has a support rod 9 connected to the hanging cam 6 at one end.
and the support rod 9 is provided on the other end side of the support rod 9.
It has a spring 10 that urges the hanging cam 6 to move in a direction away from the pad 3 via the pad 3. A wear plate 11 that contacts the upper surface of the pad 3 is attached to the upper mold 2, and a second wear plate 11 is attached to the lower part of the pad 3.
A cutting blade 12 is provided.

On the other hand, the lower die 1 is provided with a mechanism that, when the upper die 2 is lowered, contacts the lower side surface of the hanging cam 6 and moves the hanging cam 6 horizontally so that the second cutting blade 12 comes into contact with the peripheral end surface of the pad 3. A cam drive 13 is integrally formed, and the surface of the cam drive 13 (that is, the contact surface with the hanging cam 6) is formed by a wear plate 14.

Here, as shown in FIGS. 2 to 4, the first cutting blade 5 has a first blade portion 5a that cuts one end portion W1 of the workpiece W, and one side edge W2 of the workpiece W. The second cutting blade 12 has a blade part 12a that cuts the other side edge W3 of the workpiece W. Further, the first cutting blade 5 and the second cutting blade 12 are connected to the side edge of the second cutting blade 12 and the second cutting blade 12 when the upper mold 2 is in the raised position (the state shown in FIG. 1). The first cutting blade 5 is provided so that the side surface of the first cutting blade 5 on the first blade portion 5a side is partially in contact with each other.

In FIG. 1, 16 and 17 are piercing punches provided on the upper mold 2 and the hanging cam 6, respectively, and each of the piercing punches 16 and 17 corresponds to a piercing die 18 and 18 provided on the lower mold 1, respectively. In cooperation with this, a hole is punched in the workpiece W when the upper die 2 is lowered. Moreover, 19 is a space for collecting paris formed around the mounting table 1a of the lower mold 1.

Next, the operation of the trimming press device A will be explained.

Now, as shown in Fig. 1, the upper die 2 is in the raised position,
A workpiece W is placed in a predetermined state on the placement part 1a of the lower mold 1. When the upper mold 2 descends from this state, first, as shown in FIG. 5, the lower side surface of the hanging cam 6 comes into contact with the surface of the cam drive 13 (wear plate 14).

Also, around this time, the pad 3 comes to press down the workpiece W on the lower die 1 from above. When the pad 3 presses the work W on the lower mold 1, the positioning pin 15 provided on either the pad 3 or the lower mold 1 fits into the positioning hole provided on the other, and the lower mold 1 The pad 3 is positioned relative to the pad 3.

Then, when the upper die 2 further descends, as shown in FIG. A part of the peripheral edge (one end Wt and one side edge W2) of the work W is cut from above. Further, after the hanging cam 6 comes into contact with the cam drive 13, it is moved in the horizontal direction by the cam drive 13, and together with the lowering integrally with the upper mold 2, it is moved diagonally upward relative to the pad 3 and the workpiece W. As a result, the second cutting blade 12 comes into contact with the peripheral end surface of the other part of the pad 3 and descends diagonally downward while maintaining the contact state, and the second cutting blade 12 cuts the other part of the workpiece W. The peripheral edge (the other side edge W3) is cut diagonally from above.

At this time, the first cutting blade 5 and the second cutting blade 12 are
The blades 5b. The tips (cutting edges) of 12a do not interfere with each other, and these cutting blades 5, 1
The workpiece W can be simultaneously cut by the two in a good manner. In the case of the embodiment, when the upper die 2 is lowered, the work W
For piercing punch 16.17 and piercing die 18.1
8, hole punching is performed simultaneously with trimming.

In addition, the surface (wear plate) 14 of the cam drive 13
is formed into an inclined surface that is inclined in the movement direction (diagonally downward) of the hanging cam 6 after contacting the surface thereof, and functions to guide the movement of the hanging cam 6.

Thereafter, when the upper die 2 rises, the pad 3 returns to its original state separated from the upper die 2 by a predetermined distance due to the biasing force of the spring of the elastic support member 4. Furthermore, the hanging cam 6 moves in a direction away from the pad 3 in the horizontal direction due to the biasing force of the spring 10 of the elastic support member 7. With the above steps, the trimming process on the workpiece W by the press device A is completed.

In the above embodiment, the workpiece is cut from two directions, but in the present invention, the hanging cam 6 and the second cutting blade 1
A plurality of sets of 2 etc. may be provided to cut the workpiece from three or more directions.

(Effects of the Invention) As described above, according to the trimming press device of the present invention, the peripheral edge of the workpiece can be cut from multiple directions at the same time, thereby improving productivity and reducing equipment costs. Also, production costs can be reduced.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a vertical side view of a press device, FIG. 2 is a perspective view of a workpiece, and FIG. 3 shows the shape and arrangement of the first and second cutting blades. Side view showing,
FIG. 4 is a cross-sectional view taken along the IV-mV line in FIG. 3,
5 and 6 are longitudinal sectional side views for explaining the operation of the press device. A... Press device for trimming processing, W... Workpiece, 1... Lower die, 2... Upper die, 3... Pad, 5... First cutting blade, 6... Hanging cam, 12...Second cutting blade, 13...Cam drive.

Claims (1)

[Claims] (1) A trimming press device that cuts the peripheral edge of a workpiece from multiple directions, which includes a lower die on which the workpiece is placed;
an upper mold provided above the lower mold so as to be movable up and down; a pad supported so as to be movable vertically relative to the upper mold and presses a workpiece on the lower mold during cutting; and a part of the pad. A first cutting blade is attached to the upper die in contact with the peripheral end surface of the pad, and a first cutting blade is provided so as to be movable relative to the upper mold in the horizontal direction so as to approach and move away from the peripheral edge of the other part of the pad. a hanging cam, a second cutting blade provided on the hanging cam, and a second cutting blade provided on the lower mold so that the hanging cam is brought into contact with the peripheral end surface of the pad when the upper mold is lowered. and a cam drive for horizontal movement, and the first cutting blade and the second cutting blade are provided with part of their side surfaces in contact with each other. Press equipment for processing.