Fixture for hole drilling bit

Abstract

The invention discloses a fixture for a hole drilling bit. The fixture comprises a chuck, a sleeve, a fastening slide block, a fastening bolt, a through groove, a rotating rod, a fixed steel ball, a steel ball pus block, a movable block, a screw hole, a butting groove, a fixed screw rod and a positioning screw rod. The fixture has the following beneficial effects: layers of antioxidant films are coated on the outer sides of the chuck and the sleeve for preventing oxidization and rusting of the surfaces of the chuck and the sleeve, so that the service life of the fixture is prolonged; the positioning screw rod is rotated for fixing a drill bit placed in the fixture, so that the drill bit is primarily fixed without falling; the fixed screw rod is rotated to driven the movable block to move up and down, so that the fixed drill bit is positioned and prevented from aslant installing; the rotating rod pushes the chuck to clamp the drill bit placed in the fixture, so that the structure of thefixture is simplified, and operators are convenient to install and disassemble; and the fastening slide block enables clamping of the chuck to be tighter under the effect of the fastening bolt, so that the looseness condition cannot be generated after long-time use, and the use stability is good.

Description

technical field [0001] The invention relates to a fixture, in particular to a fixture for a hole-making drill bit, and belongs to the technical field of mechanical processing. Background technique [0002] When mechanical parts are drilled, they are generally operated on a drilling machine. The fixture is mainly used on a drilling or milling machine, and it is mainly used to clamp a drill bit or a milling head. [0003] Drilling in the prior art mainly includes a clamping block and a rotating fastening block. Grooves or threads are arranged in the clamping block and are set apart. The rotating fastening block is arranged on the outside of the clamping block. When drilling or milling When the head is installed on the fixture, the clamping block is gradually clamped by rotating the fastening block, and the drill bit or milling head is fixed through the internal groove or thread, which can guarantee the clamping function to a certain extent, but it is used for a long time When...

AI Technical Summary

Problems solved by technology

[0003] Drilling in the prior art mainly includes a clamping block and a rotating fastening block. Grooves or threads are arranged in the clamping block and are set apart. The rotating fastening block is arranged on the outside of the clamping block. When drilling or milling When the head is installed on the fixture, the clamping block is gradually clamped by rotating the fastening block, and the drill bit or milling head is fixed through the internal groove or thread, which can guarantee the clamping function to a certain extent, but it is used for a long time When rotating the fastening block, it is easy to make the drill bit or milling head fall off from the clamping block, and the use stability is poor, and there are also certain safety problems in use, and the applicability is limited. , the operator needs to manually turn the hand wheel on the tailstock to advance the drill bit, which increases the labor intensity of the operator, and needs to continuously measure the drilling depth, which reduces the processing efficiency and takes a lot of time

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