JP2008055524A - Hollow punch for use in impact driver and punching method using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hollow punch and a punching method using the same capable of efficiently punching holes in a short period of time when punching the holes in a sheet-shaped workpiece consisting of an elastic material with the hollow punch. <P>SOLUTION: This hollow punch formed with a hexagonal column part 3 for mounting a socket 5 for the impact driver at the head part of the body of the hollow punch 1, which has a ring blade 2 at its tip, is used, the socket 5 for the impact driver is mounted on the hexagonal column part 3 of the head part of the hollow punch 1, the socket 5 and the tip part of the impact driver 10 are connected to each other, and the ring blade 2 of the hollow punch 1 punches a hole in the sheet-shaped workpiece while the impact driver 10 applies an impact force and a rotating force to the hollow punch 1. The ring blade 2 is rotated while receiving the impact so that, even if the sheet-shaped workpiece has elasticity such as a rubber plate, the ring blade 2 cuts the sheet-shaped workpiece while entering into its material to punch the hole in the short period of time. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a punching punch usable in an impact driver and a drilling method using the punching punch.

  As a tool for making a hole in a plate-like workpiece, there is a punch. This drilling punch has a ring-shaped blade formed at the tip, and the head has a rod shape.

  The method of use is to press the ring-shaped blade against the paper or metal plate to be perforated and hit the head with a hammer to make a hole in the paper or metal plate with shearing force. Alternatively, the hole punching may be made by attaching the punching punch to a lever-type hand press and pressing it by hand.

  However, if the workpiece to be drilled is an elastic material such as thick plastic or rubber plate, even if the punch is pressed against the head with a hammer or pressed with a lever, the impact force will be reduced. It is buffered by the elastic material, and it is difficult for the punching punch to receive a repulsive force to make a hole.

  Patent Document 1 discloses a punch device that opens a hole by pressing a punch with a pressing mechanism and rotating the punch with a rotating mechanism.

JP 2003-291094 A

  The punch device described in the above-mentioned Patent Document 1 is to make a hole by rotating the punching punch. However, even if the punching device is simply rotated while being pushed, an elastic material such as a rubber plate can easily make a hole. It can't be done and it takes time. In particular, when performing a process of continuously drilling holes, if the processing time of one hole is long, the accumulated time becomes considerably long, which is inefficient.

  Accordingly, the present invention provides a drilling punch capable of efficiently drilling in a short time and a drilling method using the punching punch when punching a sheet-like workpiece made of an elastic material with a punching punch. Objective.

In order to solve the above-described problems, the punching punch of the present invention is characterized in that a rectangular column portion to which an impact driver socket can be attached is formed at the head of a punching punch main body having a ring-shaped blade at the tip.
Further, the drilling method of the present invention is such that an impact driver socket is mounted on the prism portion of the punch punch head, the socket and the tip of the impact driver are coupled, and the impact driver has a striking force on the punch punch. A hole is formed in the sheet-like workpiece by a ring-shaped blade of the punching punch while applying a rotational force.

  In the present invention, the head of the punching punch is a prism, and an impact driver socket is attached to the prism and coupled to the impact driver. When the ring-shaped blade at the tip of the punching punch is pressed against a position where a hole is made in the sheet-like workpiece and the impact driver is activated, a striking force and a rotational force are applied to the ring-shaped blade at the tip of the punching punch. With this striking force and rotational force, a hole is made in the sheet-like workpiece in a short time.

  When the ring-shaped blade is pressed against the sheet-like workpiece while rotating the punch with a normal electric tool that does not generate impact force, the elastic material such as a thick rubber plate There is a risk that rotation of the tool may stop due to insufficient torque of the tool. On the other hand, in the present invention, the impact driver is rotated while intermittently applying a striking force. Therefore, unlike the case where static pressure is applied, the impact driver does not stop rotating. Thereby, even if it is elastic materials, such as a thick rubber board, a circular cut becomes deep steadily, and a hole is finally made.

  According to the present invention, a punching punch in which a prismatic part capable of mounting an impact driver socket is formed on the head of a punching punch body having a ring-shaped blade at the tip, and the impact force is applied to the punching punch using the impact driver. By rotating while applying a hole, it is possible to efficiently drill a hole in a sheet-like workpiece made of an elastic material with a ring-shaped blade at the tip of the punch.

Hereinafter, embodiments of the present invention will be described with reference to FIGS.
FIG. 1 is a perspective view showing a punching hole, an impact driver socket and an impact driver according to an embodiment of the present invention, FIG. 2 is a partially cutaway side view of the punching punch according to the present embodiment, and FIG. It is explanatory drawing.

In these drawings, reference numeral 1 denotes a hole punch, which has a ring-shaped blade 2 at the tip and a hexagonal column 3 at the head. Moreover, the inside of the punching punch 1 main body is hollow, and an opening 4 for discharging chips after drilling by the ring-shaped blade 2 is provided.
Several punching punches 1 having different diameters of the ring-shaped blade 2 are prepared.

  The impact driver socket 5 is provided with a hexagonal hole 6 and a hexagonal shaft 7. The hexagonal column 3 at the head of the punching punch 1 is adapted to fit into the hexagonal hole 6 of the socket 5, and the hexagonal shaft 7 at the tip of the socket 5 is fitted into the hexagonal hole 11 of the impact driver 10. It is like that.

  The impact driver 10 includes a hexagonal hole 11, a guide sleeve 12 that is pulled forward when a tool is mounted in the hexagonal hole 11, a switch trigger 13, a push button 14 for switching a rotation direction, a handle 15 that is grasped by hand, and a storage battery. 16 is a general configuration. There is a type that takes electric power from a commercial power supply instead of a storage battery type.

  A method of making a hole in a sheet-like workpiece 8, for example, a thick rubber plate, using the punching punch 1 having the above configuration will be described.

  First, the hexagonal shaft 7 of the socket 5 is attached to the hexagonal hole 11 of the impact driver 10, and the hexagonal column portion 3 of the punch 1 is attached to the hexagonal hole 6 of the socket 5. In this state, when the ring-like blade 2 at the tip of the punching punch 1 is pressed against a predetermined position of the sheet-like workpiece 8 and the switch trigger 13 of the impact driver 10 is pushed in, as shown in FIG. The hexagonal hole 11 rotates in the axial direction a, and a striking force is applied in the axial direction b.

  Thus, since the ring-shaped blade 2 rotates while being hit, even if the sheet-shaped workpiece 8 is elastic like a rubber plate, the ring-shaped blade 2 is the sheet-shaped workpiece. Because it cuts while biting into the fabric of No. 8, it is possible to make a hole in a short time.

  In addition, an unevenness | corrugation can be formed in the blade surface of the ring-shaped blade 2, and the sharpness by rotation can also be improved.

  This punching punch 1 can be used by hitting the head with a hammer as usual when drilling a paper or thin plate.

  INDUSTRIAL APPLICABILITY The present invention can be suitably used as an instrument and method that can efficiently drill a rubber plate or a plastic plate in a short time.

It is a perspective view which shows the punching punch which concerns on embodiment of this invention, the socket for impact drivers, and an impact driver. It is a partially cutaway side view of the punching punch of embodiment of this invention. It is explanatory drawing which shows the drilling state by embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hole punch 2 Ring-shaped blade 3 Hexagonal column part 4 Opening part 5 Socket 6 Hexagonal hole 7 Hexagonal shaft 8 Sheet-like workpiece 10 Impact driver 11 Hexagonal hole 12 Guide sleeve 13 Switch trigger 14 Rotation direction change push button 15 Handle 16 Storage battery

Claims (2)

  A punching punch usable in an impact driver, characterized in that a square pillar portion to which an impact driver socket can be attached is formed at the head of a punching punch main body having a ring-shaped blade at the tip. A drilling method using the drilling punch according to claim 1,
An impact driver socket is attached to the prism portion of the drilling punch head, the socket and the tip of the impact driver are coupled, and the impact driver applies a striking force and a rotational force to the drilling punch. A method for drilling, characterized in that a hole is formed in a sheet-like workpiece by a ring-shaped blade.

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