Tapper with waste ejection structure

Abstract

The invention relates to the technical field of tapping equipment, in particular to a tapper with a waste ejection structure. The tapper comprises a positioning rod with a drill bit at the end portionand a tapping piece, the tapping piece comprises a connecting plate arranged on the positioning rod in a sleeving manner, a cylinder body arranged on the connecting plate and axially parallel to thepositioning rod, and teeth arranged at the end of the cylinder body, and a baffle and a plane spherical bearing are arranged in the cylinder body. Through holes of which the inner diameters are greater than the outer diameter of the positioning rod are formed in the baffle and the plane spherical bearing; and the plane spherical bearing comprises a tightening ring, a loosening ring and a ball arranged between the tightening ring and the loosening ring, the loosening ring is connected with the baffle through a spring, and the tightening ring is connected with the face, close to the teeth, of the connecting plate. Through the design of the plane spherical bearing and the through holes with the inner diameter larger than the outer diameter of the positioning rod, the baffle and the spring cannot rotate along with the tapping piece and the positioning rod, waste can smoothly push the baffle, and therefore the waste can be smoothly popped out through a spring structure.

Description

technical field [0001] The invention relates to the technical field of hole opening equipment, in particular to a hole opener with a waste material ejection structure. Background technique [0002] The hole saw is a kind of round hole, square hole, triangular hole, straight line, Curved arbitrary cutting equipment, which is flexible, convenient, safe, and widely used. There are two common types: fixed diameter and variable diameter (aircraft type). Variable diameter hole saws are often used for indoor and outdoor decoration. Fixed diameter hole saws There are ordinary type, impact type, and water-cooled type. Among them, the water-cooled type is often used for opening holes in walls, with high work efficiency and beautiful opening. Classified according to materials: bimetallic hole saws, carbide hole saws, diamond drills Hole cutters, different materials are used for cutting materials are not the same, the most commonly used is bimetallic hole cutters, hard metal materials ...

AI Technical Summary

Problems solved by technology

When opening the hole, the opening waste will be piled up on the push plate, and the rotating push plate will generate centrifugal force on the waste, so that the waste will accumulate at the end of the push plate, so that the thrust of the waste on the push plate will be uneven, so that It will affect the movement of the push plate in the direction of the opening, thus affecting the ejection effect of the waste

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