Retraction apparatus for automatic feed drills or the like

Details Retraction apparatus for automatic feed drills or the like Retraction apparatus for automatic feed drills or the like

1983-10-31

1986-06-03

Bilinsky, Z. R.

Cutting by use of rotating axially moving tool

With control means energized in response to activator...

To control infeed

173 19, 173154, 408 14, 408102, 408137, B23B 4504

Patent

active

045926816

ABSTRACT:
The automatic feed drill includes a spindle mounted therein for rotating in reciprocating movement. The spindle is rotated by spindle rotation gear that is engaged with the main drive gear which is ultimately driven by an air motor or the like. The feed and retraction movement (reciprocation) is caused by a spindle feed gear that is threaded onto the spindle. The spindle feed gear is engaged with a feed gear which, during feed movement, is driven by the main drive gear, and during retraction movement, is shifted into a position wherein the feed gear is prevented from rotating. The spindle also carries a collar or other abutment that engages a shift lever at the end of the feed movement. The shift lever is moved by the collar, and, due to its interconnection with the feed gear, moves the feed gear out of engagement with the main drive gear and into the position wherein it is prevented from rotating. The apparatus also includes a yieldable stop device that holds the feed gear stopped during retraction movement. In the event that excessive torque is encountered, such as by a lower collar on the spindle engaging the housing, the yieldable stop member rotates at the same speed as the spindle feed gear and thus, prevents further retraction of the spindle and avoids damage to the drill.

REFERENCES:
A. B. Quackenbush Co., Manual for Drill Series 15QDA-RA-SU, prior to Jan. 28, 1983.

Affiliated with

Also associated with

Rating

Retraction apparatus for automatic feed drills or the like does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Retraction apparatus for automatic feed drills or the like, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Retraction apparatus for automatic feed drills or the like will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1230627