CN102699379A

CN102699379A - Handheld counter bit

Info

Publication number: CN102699379A
Application number: CN2012100225824A
Authority: CN
Inventors: 谢广; 汪东阳; 邱平
Original assignee: SICHUAN DUJIANG MACHINERY CO Ltd
Current assignee: SICHUAN DUJIANG MACHINERY CO Ltd
Priority date: 2012-02-01
Filing date: 2012-02-01
Publication date: 2012-10-03

Abstract

The invention discloses a handheld counter bit which comprises a counter bit body (1), a handheld bush (3), a sleeve (4) and a handheld tool. The handheld bush (3) is mounted in the middle of a hilt (2) of the counter bit body (1), a user can hold the handheld counter bit by a hand via the handheld bush (3), the sleeve is mounted at the tail of the hilt (2) of the counter bit body (1), the handheld tool provides powder, the handheld bush (3) is in clearance fit with the hilt (2) of the counter bit body (1), the inner periphery of the sleeve (4) is in close fit with the hilt (2) of the counter bit body (1), and the outer periphery of the sleeve (4) is connected with the handheld tool for providing the power. The common handheld tool is combined with the handheld counter bit to obtain a simple machining tool for chamfering large parts, efficiency is improved, and cost is saved.

Description

The hand-held counterbit

Technical field

The present invention relates to a kind of tool for mechanical machining, be specifically related to a kind of hand-held counterbit.

Background technology

I-steel is widely used in various building structure, bridge, vehicle, support, machinery etc., basically all is to occur with large parts, like the beam in the steel frame building.When it further being processed (like boring, chamfering), if use traditional processing method, need use special heavy duty machine tools, anchor clamps, and workpiece weight is all more than tens kilograms, lifting workpiece is time-consuming, require great effort, and productivity effect is low.

Summary of the invention

Consider the problems referred to above of prior art; According to an aspect of the present invention; Disclose a kind of hand-held counterbit, comprised the counterbit body, it is characterized in that; The sleeve of the handle of a knife afterbody that described hand-held counterbit also comprises hand-held lining that the handle of a knife middle part that is contained in the counterbit body is used to hold, be contained in the counterbit body and the handheld tool of power is provided; The handle of a knife matched in clearance of said hand-held lining and counterbit body, the handle of a knife tight fit of said sleeve diameter and counterbit body, the external diameter of said sleeve is connected with the handheld tool that power is provided.

As preferably, said the handheld tool of power is provided is pneumtic impact wrench.

As preferably, the handle of a knife of said counterbit body is a taper shank.

The object of the invention aims to provide a kind of machine tools for the Hole chamfering on the large-scale I-steel.Compared with prior art, the invention has the beneficial effects as follows: through with the combining of handheld tool commonly used, obtain a kind of machine tools of large parts chamfering that is easily.

Description of drawings

Fig. 1 shows the structural representation of the cutter part of hand-held counterbit according to an embodiment of the invention.

Among the figure, 1-counterbit body, 2-handle of a knife, the hand-held lining of 3-, 4-sleeve.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the present invention is further specified, but embodiment of the present invention is not limited thereto.

A kind of hand-held counterbit as shown in Figure 1 comprises counterbit body 1, and the handle of a knife 2 of counterbit body 1 is a taper shank; The sleeve 4 of handle of a knife 2 afterbodys that the hand-held counterbit also comprises hand-held lining 3 that handle of a knife 2 middle parts that are contained in counterbit body 1 are used to hold, be contained in counterbit the body 1 and handheld tool of power is provided; Handle of a knife 2 matched in clearance of hand-held lining 3 and counterbit body 1, handle of a knife 2 tight fits of sleeve 4 internal diameters and counterbit body 1, sleeve 4 external diameters are connected with the handheld tool that power is provided, and the handheld tool that power is provided is a pneumtic impact wrench.

During use, hold hand-held lining 3 with left hand, the point of a knife of counterbit body 1 is aimed at the hole that needs processing, the right hand is held pneumtic impact wrench and is started, and the range estimation chamfer machining stops to get final product after the needs size.

Provide the pneumtic impact wrench of power to be small processing instrument commonly used, it is the Hole chamfering on the large-scale I-steel that the present invention utilizes this common tool, has improved efficient, has practiced thrift cost.

Claims

1. hand-held counterbit; Comprise counterbit body (1); It is characterized in that: the sleeve (4) of handle of a knife (2) afterbody that described hand-held counterbit also comprises hand-held lining (3) that handle of a knife (2) middle part that is contained in counterbit body (1) is used to hold, be contained in counterbit body (1) and the handheld tool of power is provided; Handle of a knife (2) matched in clearance of said hand-held lining (3) and counterbit body (1); Handle of a knife (2) tight fit of said sleeve (4) internal diameter and counterbit body (1), the external diameter of said sleeve (4) is connected with the handheld tool that power is provided.

2. hand-held counterbit according to claim 1 is characterized in that: said the handheld tool of power is provided is pneumtic impact wrench.

3. according to claim 1,2 described hand-held counterbits, it is characterized in that: the handle of a knife (2) of said counterbit body (1) is a taper shank.