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High-precision hand drill

A high-precision, manual technology, applied in the direction of manufacturing tools, portable drilling rigs, wood drilling tools, etc., can solve the problems of unresolved material surface slippage, large friction loss of threaded screw structure, and aggravated holes. Versatility, high drilling accuracy and simple structure

Pending Publication Date: 2018-01-19
HUZHOU VOCATIONAL TECH COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the friction loss between the threaded and screw structures is relatively large, and it is easy to get stuck and consume more energy when doing reciprocating work.
Moreover, this technical solution does not solve the problem of slippage on the surface of the material. At the same time, the way it is driven by the pressure handle will aggravate the occurrence of the phenomenon of the hole being crooked and slipping.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 Shown, a kind of high-precision manual drill, a kind of high-precision manual drill, comprises handle 1, collet 2, driving pair 3, it is characterized in that, driving pair 3 comprises lead screw 31 and grip sleeve 32, and grip sleeve 32 inner side has The screw thread and the ball 33 corresponding to the lead screw 31, the thread in the grip 32 and the thread on the surface of the lead screw form a circular spiral track, the ball 33 is just embedded in the circular spiral track, and the grip 32 passes through the circular spiral track and the ball. 33 and leading screw 31 form leading screw nut pair, and leading screw nut pair makes can effectively eliminate the phenomenon such as jitter, clamping stagnation of general screw nut transmission, guarantees still can stably carry out drilling on occasions such as inclined, rough processing surface. The collet 2 is fixedly connected to the front end of the lead screw 31 by screws, the handle 1 has a cylindr...

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PUM

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Abstract

A high-precision hand drill comprises a handle, a chuck and a drive pair. The high-precision hand drill is characterized in that the drive pair comprises a lead screw and a holding sleeve; the inner side of the holding sleeve is provided with a thread corresponding to the lead screw and balls; the holding sleeve and the lead screw form a lead screw and nut pair through the thread and the balls; the chuck is fixedly connected to the front end of the lead screw; the handle is provided with a cylindrical hole; and the cylindrical hole is rotationally connected to the outer side of an unthreaded rod in a sleeving manner. The high-precision hand drill has the beneficial effects that the structure is simple, labor is saved, high efficiency is achieved, and drilling accuracy is high.

Description

technical field [0001] The invention relates to the field of drilling tools, in particular to a high-precision manual drill. Background technique [0002] With the improvement of people's living and cultural level, many people have developed an interest in DIY production of woodworking and Wenwan jewelry. In general woodworking, manual drilling is usually used to drill holes, but the commonly used materials such as logs and walnuts are relatively hard, and the surface of the material is a curved surface. On the one hand, ordinary hand-twisted drills cannot drill holes with greater force; on the other hand, hand-twisted drills may distort holes or shift the drilling position on curved and complex surfaces due to drill bit slippage or hand-held shaking. cause waste of materials. [0003] As a semi-automatic twist drill described in the application number 201620614825.7, the reciprocating movement of the screw rod and the connecting piece increases the drilling efficiency. H...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B45/06B23B45/14B27G15/00
Inventor 傅方寅周忠友
Owner HUZHOU VOCATIONAL TECH COLLEGE
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