Drill edge grinding machine capable of randomly adjusting static point size of two-bevel or three-bevel drill bit

• Main Author: HONG YIBO
• Format: Patent
• Language: Chinese; English
• Published: 18.02.2020
• Subjects: DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS; GRINDING; MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; PERFORMING OPERATIONS; POLISHING; TRANSPORTING

The invention discloses a drill edge grinding machine capable of randomly adjusting the static point size of a two-bevel or three-bevel drill bit. A static point grinding seat is arranged above a grinding wheel of a drill bit grinding machine, and a drill bit clamping sleeve group can be inserted into a movable sleeve of the static point grinding seat; and then the front end of a drill bit fixed on the drill bit clamping sleeve group extends to the grinding wheel, and the two-blade leading end angle, the clearance angle and the static point at the front end of the drill bit are ground. In particular, the static point grinding seat is provided with a rotatable adjusting ring, and when the adjusting ring rotates to drive a pushing part inside the adjusting ring, the adjusting ring can be adjusted according to a scribing indication, so that the up-down position can be changed, the pushing part can push or loosen the movable sleeve through the inclined surface structure, and the movable sleeve can ascend and desc