JP2000343494A - Punch unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide punch unit at a low cost which is excellent in durability, punching accuracy and usability by improving rigidity of a casing forming a punch unit. SOLUTION: In a punch unit which has a punch comprising a hitting part and a die mounted facingly up/down on a transverse U type and flat thin formed casing 11 forming a notch space 10 for moving words in a vertical center part, the casing 11 is formed with a minimum required width for arranging several punches 23 and 33 and dies 14 and 15 to have several punching mechanisms 20 and 30 formed with the punches 23 and 33 and the dies 14 and 15 mounted on the casing 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a punching machine unit, and more particularly to a punching machine for punching a reference hole or pattern in a workpiece such as a thin plate, for example, a printed circuit board, a flexible film, a metal foil or a ceramic green sheet. Machine unit.

[0002]

2. Description of the Related Art Conventionally, a punching unit for a thin plate is provided with:
For example, as shown in Japanese Patent Application Laid-Open No. 63-267195, a hitting portion is provided on a horizontally-U-shaped and flat-thin housing 6 having a notch space for moving a work in the upper and lower central portions. A configuration in which a punch b and a dice b ′ are mounted so as to face up and down is known. In this conventional unit, a punch mechanism including a punch b and a die b 'is arranged so as to be attached to each housing 6 one by one, and the width of the housing 6 is set to, for example, about 25 mm.

[0003]

However, when a large-sized workpiece (work) is to be drilled, the notch space for moving the work of the housing is made deep, in other words, the depth of the housing is reduced. In this case, the rigidity is reduced because the casing becomes longer than the width (thickness). When the rigidity of the housing is reduced, the notch space is present in the housing, so that the punch mounting portion of the housing which receives the pressing force at the time of punching by the punch or the reaction force thereof, that is, the upper side of the housing The part is slightly deformed such as moving up or down. Also, vibration generated by the power of the drive mechanism for moving the work in the X-axis direction and the Y-axis direction is transmitted to the housing and the housing itself is shaken, or the housing is bent or twisted due to thermal stress. It causes deformation. If such a housing is deformed, a misalignment occurs between the initially set punch and die axes, which causes a problem such as a decrease in perforation accuracy or a failure such as breakage of the punch. .

In order to solve the above-mentioned problems, it is conceivable to use a material having high rigidity, for example, to use a material obtained by mixing aluminum and ceramics or a ceramic material. Not only is the cost itself high, but also the processing cost is high, so it is not practical.

The present invention has been made in view of the above circumstances, and has as its object to provide an inexpensive punching machine unit having enhanced durability, punching accuracy, and usability by increasing the rigidity of a housing.

[0006]

According to the present invention, the casing of the punching unit is formed to have a minimum width necessary for arranging a plurality of punches and dies, and the casing comprises the punches and dies. A plurality of punch mechanisms are attached. Conventionally, the width of the housing is 50 mm when two punch mechanisms are arranged and 75 mm when three punch mechanisms are arranged when one punch mechanism is conventionally arranged in a 25 mm housing. This improves the rigidity of the housing against deformation such as bending and twisting.
Since the plurality of punch mechanisms rarely perform the punching operation at the same time, it is not necessary to arrange the same type in parallel. Preferably, each punch mechanism has a punching unit having a different output from the punch mechanism. ) Or punch holes having different shapes are formed (claim 3).
Note that the arrangement of the plurality of punch mechanisms may be any of a parallel arrangement arranged in the width direction of the casing or a serial arrangement arranged in the longitudinal direction of the casing.

[0007]

FIG. 1 is a plan view of a drilling machine in which a drilling machine 2 and a work moving mechanism 3 are arranged on a work table 1. FIG. The punch 2 has a plurality of punch units A1, A2, B1, and B2 arranged and fixed in a predetermined position on the work table 1 in parallel, and punches a reference hole or pattern in the work W. Note that reference numeral C in the figure denotes a camera support member that captures an image to determine the position of punching the workpiece W. The work moving mechanism 3 includes an X-axis moving unit 3a and a Y-axis moving unit 3b.
And move it to the drilling machine 2. The work W is a thin plate-like material such as a flexible film or a ceramic green sheet, and is transferred between predetermined punching units to perform a punching operation at a controlled operation timing of the work moving mechanism 3.

Each of the punch units A1 and A2 is provided with one punch for each punch mechanism, and punches one punch hole by one punch operation (down and up operations). Drilling unit B1, B2
Is provided with a number of punches called a gang table for each of the punch mechanisms b1 and b2, and simultaneously punches a number of punch holes corresponding to the number of punches by one punch operation. That is, the boring unit B1, B2
Exemplifies a case where a punch mechanism larger than the punch units A1 and A2 is provided, and the punch mechanism b2 is larger (having a larger number of punches) than the punch mechanism b2. In addition, the drilling machine unit of the present invention includes the drilling machine unit A
1, A2.

FIG. 2 shows the details of the punching unit A1 of the present invention. The punching unit A1 has a main body structure of a flat, thin, U-shaped housing 11 having a notch space 10 for moving a work in the upper and lower central portions, and a plurality of punch mechanisms are arranged in the housing 11. It is to establish. The figure illustrates a case where two punch mechanisms 20 and 30 are provided. Housing
An upper case 11a and a lower case 11b are formed by molding aluminum as a raw material, with the notch space 10 interposed therebetween, and a punch setting portion 12 is formed in the upper case 11a on the opening end side of the notch space 10. However, the die setting units 13 are respectively arranged in the lower case 11b.

In the punch setting section 12, two mounting grooves 16, 16 'extending in the front-rear direction are provided side by side on the upper surface.
Two support holes 1 corresponding to the front of 16, 16 'and penetrating vertically
7, 17 'are opened, their mounting grooves 16, 16' and support holes 1
The driving units 21, 3 of the punch mechanisms 20, 30 are utilized by using 7, 17 '.
Attach 1 That is, the mounting groove 1
Support brackets 18 and 18 'are detachably attached to the grooves 6 and 16' by groove fitting and fixed by fixtures 19 and 19 ', respectively.
21 and 31 are inserted from above and further inserted through the support holes 17 and 17 '. The striking parts 21 and 31 operate the piston in the cylinder by, for example, air pressure or the like to raise and lower the rods 22 and 31.
The lifting rods 22 and 32
The punches 23 and 33 are detachably attached to the lower ends of the. The driving section 21 is set so that its output is larger than that of the other driving section 31 by using a double piston as the driving section.

Two dies 14, 15 are detachably mounted on the die setting section 13, and the dies 14, 15 are mounted so that the axes of the dies 14, 15 are aligned with the respective punches 23, 33. You. The hitting portion 21, the punch 23 and the die 14
Constitute one punch mechanism 20, and the punching unit 31, the punch 33 and the die 15 constitute the other punch mechanism 30.

FIG. 2 shows the punch setting unit 12 in which two punch mechanisms 20 and 30 are juxtaposed in the width direction of the housing 11, and the die setting unit
FIG. 3 shows a case where two dies 14 and 15 are arranged side by side in a similar manner. As shown in FIG.
They may be arranged side by side along the longitudinal direction of the housing 11. That is, the punching unit A1 'of FIG.
An example is shown in which two punch mechanisms 20, 30 are arranged side by side in the width direction of the housing 11 in 2 ', and two dies 14, 15 are similarly arranged in the die setting section 13'. Although not shown, the punch mechanism 20 is disposed obliquely rearward of the punch mechanism 30 in FIG.
The dies 14, 15 may also be arranged so that their longitudinal axes are shifted to correspond to them.

Although the details of the punching unit A2 are not shown, the basic configuration of the housing 11 'is the same as that of the punching unit A1, and a punch mechanism 30 is arranged in place of the punch mechanism 20, that is, Two punch mechanisms 30 are juxtaposed in a housing.

The housings 11, 11 'are formed to have a minimum width (thickness), for example, about 50 mm, in which the two punch mechanisms 20, 30 or 30, 30 are arranged. Thus, the rigidity of the casings 11 and 11 'with respect to deformation loads such as bending and twisting is improved as compared with the conventional type (25 mm thick) in which only one punch mechanism is provided.

In the above embodiment, only the case where two punch mechanisms are provided has been described. However, three or more punch mechanisms may be provided. For example, three punch mechanisms may be provided. If provided, the width of the housing is set to 75 mm, and the specific structure of the punch mechanism is not limited to the configuration illustrated in the embodiment. Also, the case where two punch mechanisms 30 are provided in the punching machine unit A2 has been described, but it goes without saying that two punch mechanisms 20 having a large output of the driving unit may be provided. further,
The plurality of punch mechanisms are respectively different punch holes, for example,
The shape of the punch and the die may be changed so that a round hole having a different diameter, a round hole, a square hole, a deformed hole, or the like is opened.

[0016]

According to the present invention, since the housing for mounting the punch mechanism is formed wide, the rigidity of the housing is increased, and the housing can withstand deformation such as bending and twisting. Therefore, there is no possibility that the set axis of the punch and the die is displaced, and the accuracy of the punching can be ensured. Further, there is no failure such as punch breakage due to deformation of the housing, and the durability can be improved. it can. In addition, compared to the conventional case where a plurality of independent housings are arranged side by side and fixed, the rigidity of the housings can be increased, the material can be reduced, and the use of expensive materials can be avoided to reduce the cost. Can be manufactured.

Further, since a plurality of punch mechanisms can be arranged with different output and punch holes, respectively,
It is possible to cope with various drilling operations for each application and to improve usability (claims 2 and 3).

[Brief description of the drawings]

FIG. 1 is a plan view of a punching device provided with a punching unit of the present invention.

FIG. 2 is a perspective view in which the punching unit is separated.

FIG. 3 is a perspective view showing another embodiment.

[Explanation of symbols]

A1: Drilling unit A2: Drilling unit 10: Notched space 11, 11 ': Housing
14, 15: Die 20, 30: Punch mechanism 21, 31: Driving part
23, 33: Punch

Continued on the front page (72) Inventor: Kiko Yamada, Aji-gun, Aichi-gun, Togo-cho, Aki, Haruki-shi, 446, Umo-ya Co., Ltd. 268 Haruki, Shimogamida, Address 268 UH Co., Ltd. Furuya Plant F-term (reference) 3C060 AA04 AA10 AA11 AA16 BA01 BC01

Claims (3)

[Claims] 1. A punch having a punching and a die provided with a punching unit mounted vertically on a housing of a horizontal U-shape and a flat thin shape in which a notch space for moving a work is formed in a center part of a vertical direction. In the unit, the casing is formed to have a minimum necessary width to arrange a plurality of punches and dies,
A punch unit, wherein a plurality of punch mechanisms including the punch and the die are mounted on the housing. 2. The drilling machine unit according to claim 1, wherein each of the punch mechanisms has a driving portion having a different output. 3. The punching machine unit according to claim 1, wherein each of the punching mechanisms punches a punch hole having a different shape.