JP2547105Y2 - Automatic positioning machine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic positioning and processing apparatus for performing a secondary processing on a portion to be processed of a primary processed work.

[0002]

2. Description of the Related Art In the case of punching or cutting a plate material, a press with an automatic positioning function for processing based on NC data is used. In the processing by the press with the automatic positioning function, there is a case where the additional processing is performed with high accuracy of ± 0.01 to 0.1 mm based on the hole already drilled in the plate material, and the drilling processing and the cutting work are performed. .

In such a case, the dimensional accuracy of the product after the additional processing becomes a problem. The causes that affect the dimensional accuracy include (1) the accuracy of the punch, which is a tool, and (2) N
C position data, (3) accuracy of NC positioning device,
(4) There is a positioning accuracy of the plate material or the punch, and (5) an inherent dimension due to the manufacturing accuracy and deformation of the plate material.

[0004] In the case where the above-mentioned causes (1) to (4) are present, the processing accuracy can be relatively easily increased by taking measures for increasing the mechanical accuracy.

[0005]

However, in the case where there is the cause of (5), for example, if the plate material is subjected to additional processing after undergoing a processing step such as thermal processing, deformation and dimensional change compared with after the primary processing are performed. As a result, the dimensional accuracy of the plate material is reduced, so that the processing accuracy of the secondary processing cannot be increased.

On the other hand, the deformation and dimensional change of the plate material are measured,
There is a method in which this dimensional change is reflected in the NC position data, but this is often difficult in practice.

[0007] Therefore, an object of the present invention is to provide an automatic positioning and processing apparatus which solves such a problem.

[0008]

According to the configuration of the present invention for achieving the above object, a punch and a die are arranged at positions sandwiching a work which has been subjected to primary processing, and a portion to be processed of the work is pressed from both sides. In this way, the punch is applied to the die along the axis connecting the punch and the die so that the workpiece is subjected to secondary processing.
The punch and die are set to be movable on a reference plane perpendicular to the axis, and the die is formed with a fitting hole.
To the workpiece by inserting it into the hole of the workpiece.
Position in a specific direction on the reference plane of the
Into a punch on the reference surface by fitting into the fitting hole of the die
Position the die with respect to the workpiece and perform secondary processing on the workpiece.
Forming a fitting portion to be applied, and perpendicular to the specific direction on the reference plane.
To position the punch with respect to the workpiece in other directions
The notch engaged with the work part of the work is inserted into the tip of the fitting part.
It is characterized by being formed at the end .

[0009]

When the punch is lowered toward the portion to be processed of the work which has been fixed and is primarily processed, the punch is inserted.
Parts are by being guided into the hole of the workpiece, the punch is moved in a specific direction on the axis perpendicular to the reference plane of the punch, in a specific direction
Of the punch with respect to the workpiece. When the punch further descends and the fitting portion fits into the fitting hole of the die, the die is positioned with respect to the punch. Further punch down
When it is lowered, the processed part of the work enters the notch of the fitting part.
In other directions perpendicular to the specific direction on the reference plane.
The punch is positioned relative to the punch. As described above, the positioning of the workpiece, the punch, and the die is completed, and when the punch further descends , the fitting portion of the punch presses the workpiece to press the workpiece.
And the secondary processing is completed.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings. 1 and 2 show the configuration of the automatic positioning processing device according to the present invention. As shown in FIG.
A punch 2 and a die 3 are arranged above and below the position where the fixed work 1 (workpiece) is sandwiched, and the punch 2 is driven up and down.

The die 3 is provided in a die holder 4 and shown in FIG.
As shown in (1), it is possible to move freely within a certain range within a reference plane (not shown) perpendicular to the axis of the die 3. That is, die 3
Steel balls 5 are interposed between the die 3 and the upper and lower flanges 3a formed at the lower part of the die 3, and steel balls 7 accommodated via springs 6 in holes 4a formed in the center of the die holder 4 are provided on the die 3. Into the conical hole 3b at the center of the lower surface of the.
A fitting hole 3c having a rectangular cross section is formed in the upper part of the die 3. On the other hand, the punch 2 is also provided in the punch holder 8 in the same manner as the die 3, and can freely move only within a certain range within the reference plane. The relationship between the punch 2 and the punch holder 8 is the same as the relationship between the die 3 and the die holder 4, and a description thereof will be omitted. The tip of the punch 2 is fitted into the fitting hole 3c to form the cut portion (the portion between the elongated holes 9) 10 of the work 1.
A fitting portion 2a to be cut is formed.

The positioning of the die 3 with respect to the punch 2 on the reference surface is performed by fitting the fitting portion 2a into the fitting hole 3c without any gap . Then, a tapered portion 2b is formed on the outer peripheral surface of the fitting portion 2a to facilitate the fitting. In order to position the punch 2 with respect to the work 1 in the longitudinal direction of the long hole 9 on the reference plane, the center of the lower end of the fitting portion 2a is provided.
A notch 2c is formed. This is because the bottom of the notch 2c is made circular so that the punch 2 descends and
When 0 hits the bottom of the notch 2c, the punch 2 moves on the reference plane so that the axis of the punch 2 coincides with the center of the cut portion 10 in the length direction of the long hole 9. Note that the positioning of the punch 2 with respect to the work 1 in the width direction of the long hole 9 which is a specific direction on the reference plane is performed by the fitting portion 2a.
Width of is performed by corresponding to the width of the elongated hole 9
You.

Next, the operation of the automatic positioning machine will be described with reference to FIGS. As shown in FIG. 3, the work 1 is fixed by fixing means (not shown),
And the die 3 are positioned at positions set with respect to the work 1 by the NC device. At this time, the punch 2 and the die 3
It is assumed that there is a shift of e _{1 in} the width direction of the long hole 9 with respect to the work 1 and there is a shift of e ₂ in the length direction of the long hole 9.

As shown in FIG. 4, both ends of the punch 2 guided by the tapered portion 2b are elongated holes 9 as shown in FIG.
When it enters, the punch 2 is guided by the long hole 9 and moves horizontally in the width direction of the long hole 9, and the axis of the punch 2 coincides with the center line of the long hole 9 only in the width direction. . At this time,
In the length direction of the long hole 9, the punch 2 does not move to the center of the cut portion 10 and remains shifted.

When the punch 2 further descends and both ends of the punch 2 enter the fitting hole 3c of the die 3 as shown in FIG. 5, the die 3 is guided in the width direction and the length direction of the long hole 9. Been moved. Therefore, the axis of the die 3 completely matches the axis of the punch 2. Immediately thereafter, as shown in FIG. 5 (b), the cut portion 10 comes into contact with the semicircular bottom of the notch 2c, whereby the punch 2 and the die 3 engaged with each other are elongated holes. The punch 2, the die 3, and the cut line 10 coincide with each other in both the length direction and the width direction of the elongated hole 9.

Thereafter, when the punch 2 further descends, the cut portion 10 is sheared by the action of the die 3 and the fitting portion 2a as shown in FIG. As a result, a longer slot in which the slots 9 are connected to each other is formed.

Although the present embodiment has shown the case of punching a work, the present invention can be applied to simple cutting and molding.

[0018]

As can be seen from the above description, according to the automatic positioning apparatus according to the present invention, the punch and the die are set so as to be movable on the reference plane perpendicular to the respective axis centers, and the fitting portions are inserted into the punch and the die. , Forming a fitting hole, and at the tip of the fitting part
Since the notch is formed to engage with the work part of the work, even if the punch and die are installed with insufficient positioning of the punch and die with respect to the work, the punch and die can be positioned based on the work part of the primary processed work. Move on the reference plane to process the workpiece
When the part is processed by the fitting part, the positioning of the punch, the work and the die is properly performed. Therefore, accurate secondary processing can be performed on the primary processed workpiece, and an inexpensive system can be provided without the need to improve the accuracy of accessory equipment and the like.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of an automatic positioning press showing an embodiment of an automatic positioning processing device according to the present invention.

2 (a) is a perspective view of a main part of an automatic positioning press, and FIG. 2 (b) is an enlarged view of a portion A in FIG. 2 (a).

3A and 3B are operation explanatory views showing a state before the start of processing, in which FIG. 3A is a front view, and FIG. 3B is a right side view.

4A and 4B are operation explanatory views showing a state in which a punch is inserted into a long hole, wherein FIG. 4A is a front view and FIG. 4B is a right side view.

FIGS. 5A and 5B are operation explanatory views showing a state in which the punch has been inserted up to the die. FIG. 5A is a front view, and FIG. 5B is a right side view.

6A and 6B are operation explanatory views showing a state in which the work is sheared, wherein FIG. 6A is a front view, and FIG. 6B is a right side view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Work 2 ... Punch 2a ... Fit-in part 2c ... Notch 3 ... Die 3a ... Flange 3c ... Fit-in hole 4 ... Die holder 5 ... Steel ball 8 ... Punch holder 9 ... Elongated hole 10 ... Part to be cut

Claims (1)

(57) [Scope of request for utility model registration] 1. A pan at a position sandwiching a work that has been subjected to primary processing.
Place the switch and the die, to perform a secondary processing on the processed portion by pressing the portion to be processed of the workpiece from both sides, Pas
Punch along the axis connecting the punch and die
In an automatic positioning processing device that is set to be able to approach / separate , the punch and die are set to be movable on a reference plane perpendicular to the axis, and a fitting hole is formed in the die, while a punch is
Punch standard for workpiece by fitting into hole of workpiece
Positioning in a specific direction on the surface and fitting the die
By fitting into the mating holes, the die
An insertion part that performs positioning and performs secondary processing on the work
Formed on the reference surface and positioned on the reference surface in order to position the punch with respect to the work in another direction perpendicular to the specific direction.
An automatic positioning processing device, characterized in that a cutout portion engaging with a processing portion is formed at a tip of the fitting portion .