Aperture-adjustable reamer

Abstract

The invention discloses an aperture-adjustable reamer comprising a spindle connected to the output shaft of a motor. One end of the spindle is connected to a round aperture adjusting disc, the aperture adjusting disc is sleeved with a cutter disc arranged at the front end of the aperture adjusting disc, and the rear side of the cutter disc is provided with engaging grooves matching with the aperture adjusting disc; the right front of the cutter disc is provided with at least one pair of blade components symmetrical about the center of the cutter disc radially, the blade components comprise blades, cutter holders and cutter holder locking components, the blades are fixed to the cutter holders perpendicularly, two sides of the lower portions of the cutter holders are provided with H-shaped grooves, the cutter disc is provided with inverted T-shaped grooves correspondingly and radially, the H-shaped grooves of the cutter holders are sleeved with the inverted T-shaped grooves of the cutter disc, the cutter holders are capable of sliding radially along the inverted T-shaped grooves, and the cutter holder locking components lock and fix the cutter holders sliding along the cutter disc to the cutter disc; the inner side of the aperture adjusting disc is provided with involute-type spiral grooves entirely, and the bottoms of the cutter holders are provided with a plurality of tooth blocks matching with the spiral grooves correspondingly.

Description

【Technical field】 [0001] The invention relates to a hole opening device, in particular to a hole reamer with adjustable hole diameter. 【Background technique】 [0002] When drilling or opening holes in existing boards such as wood boards, plastic boards, and metal boards, electric drills or manual drills are generally used to operate. For holes with different diameters, it is often necessary to replace drill bits or reaming devices with different diameters to open different diameters. Frequent replacement of drill bits or reaming devices is complicated, and correspondingly, multiple drill bits or reaming devices with different diameters often need to be stocked, which increases the tool cost in the drilling or reaming process. 【Content of invention】 [0003] The invention provides an adjustable bore reamer which is easy to operate, saves tool cost and is convenient for processing different bores. [0004] In order to realize the above-mentioned purpose of the invention, th...

AI Technical Summary

Problems solved by technology

[0002] When drilling or opening holes in existing boards such as wood boards, plastic boards, and metal boards, electric drills or manual drills are generally used to operate. For holes with different diameters, it is often necessary to replace drill bits or reaming devices with different diameters to open different diameters. The drill bit or reaming device is frequently replaced, and the operation is complicated. Correspondingly, multiple drill bits or reaming devices with different diameters often need to be stocked, which increases the tool cost in the drilling or reaming process.

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