JPS63283895A - Ultrasonic punching processing method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a punching method using ultrasonic imaging, particularly for punching. □ [Prior art] Fig. 8, which relates to the Rm method, is shown in Japanese Patent Publication No. 87-2441, for example, when n=
This is a cross-sectional view of an apparatus for carrying out a conventional ultrasonic punching method. The horns 3 and 4 for dynamic amplification are turned on and a magnetic cable 5 is connected to form a vibrating string.

An ultrasonic Rh vibration and an excitation current are supplied to this vibration system through the lead wire 6, and an ultrasonic wave of several microns in width is applied to the punch I#l and the workpiece A placed on the die 7. If the vibration is applied and the punching operation is simultaneously applied, a large number of holes corresponding to the number and arrangement of the punch group 1 are punched in the workpiece A.

[Problem that the invention seeks to solve]

In the conventional ultrasonic punching method carried out using the above-mentioned equipment, no lubricant was used. Komei's copper plating peeled off during the through-hole plating process after processing, and that i! This is because the ultrasonic punching of printed circuit boards generates fine chips during processing, which causes problems such as T rise and punch life (decreased IJ). ◎ This invention was made to solve this problem, and it is possible to improve the C/J microa characteristic of ultrasonic punching of printed circuit boards.
The purpose of the present invention is to obtain a processing method that suppresses the generation of hard chips, prevents heat generation of the punch, extends its life, and enables high-precision through-hole processing.

[Means for solving problems]

The ultrasonic punching method according to the present invention uses +11 tons of UJ volatile organic bath agent such as ethanol during punching.
It is used as an fII agent.

[Effect]

In this invention, fine chips are removed using a volatile organic solvent to suppress the amount of chips rising. In addition, since chips are prevented from adhering to the punch shoulder, the sharpness of the punch cutting edge is maintained, and high machining accuracy is maintained.Furthermore, the punch is cooled by the heat of vaporization of the solvent, extending its life.

〔Example〕

FIG. 1 is a longitudinal sectional perspective view of an embodiment of the present invention.
The horn 8 attached to the plurality of punches 1 is fastened to the ultrasonic vibrator 10 by embedded bolts 9, and an ultrasonic vibration system is constructed here. The flange 11 of the workpiece A is fixed to a moving plate for pressurization, and the workpiece A C1 is placed on the die 13 and fixed by pressing with a holding plate 14. 15 Punch the opening at the tip 1
A solvent injection nozzle is placed opposite the group, and 16 is a guide post for the pressurizing moving plate ν.

By the way, electrical vibrations from an ultrasonic power source (not shown) are converted into mechanical vibration by an ultrasonic vibrator 10, and this ultrasonic vibration propagates through the horn 8 and is applied to the punch. Here, by lowering the pressure moving plate ν using a pressure generation source (not shown), the workpiece A is punched to the desired size σ]. When the process is completed, the pressure moving plate ν is raised. Operate and pull out the punch 1, and spray volatile organic solvent from the solvent injection nozzle 5 to remove fine chips attached to the punch 1 and cool the punch 1.
The embodiment shown in Fig. 1 has a structure in which volatile organic agent is injected, but the entire processing equipment or the die and punch are injected.
The same effect can be expected even if the holding plate 14 is immersed in a volatile organic solvent. The porous member ν is fitted and integrated into the
A volatile organic solvent is supplied and impregnated into each of them as appropriate, and in this case, solvent supply holes are provided in die forming and holding plate 14, and piping (not shown) is provided.

[Invention U” effect]

As explained above, this invention uses a volatile organic solvent such as etal as a lubricant in an ultrasonic punching method, and its life is extended by removing fine chips σ that adhere to the punch and cooling it. , and high processing accuracy is maintained, making it effective and suitable as a through-hole processing method for preset boards, etc.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a longitudinal disorder showing one embodiment of the present invention;
The figure is a vertical perspective view of another embodiment, and FIG. 8 is a vertical sectional front view of a conventional ultrasonic punching device.
&Bonchi, 8 is a horn, 1G is an ultrasonic wave'! hR movement,
14 is a presser plate, 15 is a solvent injection nozzle, and 17 is a porous member □ The same reference numerals in the drawings indicate the same or corresponding parts T. Agent Masu Oiwa Figure 1 Figure 2

Claims (1)

[Claims] An ultrasonic punching method characterized in that a volatile organic solvent such as ethanol is used as a lubricant in a punching method that applies ultrasonic vertical vibration to a punch.