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Drill Change Mechanism for Small

IP.com Disclosure Number: IPCOM000099210D
Original Publication Date: 1990-Jan-01
Included in the Prior Art Database: 2005-Mar-14
Document File: 2 page(s) / 61K

Publishing Venue

IBM

Related People

Fey, D: AUTHOR [+3]

Abstract

Disclosed is a device that is used in a matrix machine that allows drills to be removed from and to the spindles.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 92% of the total text.

Drill Change Mechanism for Small

       Disclosed is a device that is used in a matrix machine
that allows drills to be removed from and to the spindles.

      Several actions take place during a drill removal. to the
figure, the change blocks 1 are moved in a direction by a plate to a
predetermined height.  A downward motion is made by spindles 9 that
need their drills 2 changed.  The shoulder 3 contacts the top of the
hole in the  An alignment motion is made by the block, forced by X-Y
stationary spindle.  The alignment is possible of clearances in the
block,  around the diameter of shoulder screws.  After full alignment
is made, the spring 4 pushes the inside surface of the drill hole
against the shank of the drill, stopping any rotation of drill (air
bearing flotation spindles spin, even when torque power is removed).
The cone-shaped shoulder the drill 3 opens the normally closed drill
spring 7, the shank diameter has fully opened the spring.  When
groove in the drill has reached the drill spring, the snaps inward,
much the same way as a retaining ring. block would then retract
downward, removing the drill the spindle.

      To add a drill to a spindle, some of the motions remain same.
The block is again actuated upwards to the by the mounting plate.
The spindle is again downward.  The stationary drill shank is engaged
by hole in the spindle rotor 9.  The drill spring opens by wedge
action inside both spring elements, when the spring pin 8 is act...