Grinding cup and holder device

Details Grinding cup and holder device Grinding cup and holder device

1996-02-05

1998-03-17

Rose, Robert A.

Abrading

Frame or mount

Portable abrader

451450, B24B 333, B24B 2302

Patent

active

057279942

ABSTRACT:
The present invention relates to improvements in devices for use as grinding cups for grinding the hard metal pins or working tips of drill bits and more specifically, but not exclusively, for grinding the tungsten carbide cutting teeth or buttons of a drilling head and the means for detachably connecting the grinding cups to the grinding machine. The grinding cups have top and bottom surfaces and consist of a lower grinding section and an upper body section. The grinding section is formed from a material capable of grinding the tungsten carbide button bits such as a metal and diamond matrix. The peripheral edge in the bottom surface may be bevelled to facilitate the removal of steel from the face of the bit around the base of the button during grinding. A centrally disposed convex recess is formed in the bottom surface of the lower grinding section having the desired profile for the button to be ground. The upper body section has a centrally disposed cavity formed in the top surface of the grinding cup. This cavity is shaped and sized to permit the grinding cup to be detachably connected to the drive member of a grinding machine and rotated during the grinding operation. One or more passageways connect the floor of the cavity in the top surface of the grinding cup with the convex recess in the grinding section to permit a coolant, preferably water, optionally mixed with cutting oil, to be provided to the surface of the button during grinding, through one or more outlets.

REFERENCES:
patent: 3041793 (1962-07-01), Shimizu
patent: 4541758 (1985-09-01), Frank et al.
patent: 4858388 (1989-08-01), Bice
patent: 5070654 (1991-12-01), Manqvist et al.
patent: 5193312 (1993-03-01), Gudmundsson et al.
patent: 5527206 (1996-06-01), Sjolander et al.

Affiliated with

Also associated with

Rating

Grinding cup and holder device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Grinding cup and holder device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Grinding cup and holder device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-952633