CN201856133U

CN201856133U - Broach used for buffing inner holes

Info

Publication number: CN201856133U
Application number: CN2010205213139U
Authority: CN
Inventors: 余泽利
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-09-02
Filing date: 2010-09-02
Publication date: 2011-06-08
Anticipated expiration: 2020-09-02

Abstract

The utility model provides a broach used for buffing inner holes, and belongs to the technical field of hardware tools. The broach comprises a broach rod, a broach head and a broach handle, and is characterized in that the broach head is arranged at one end of the broach rod; the broach handle convenient to fix and hold is arranged at the other end of the broach rod; and a concave notch for the winding of abrasive cloth is formed at the top of the broach head. As the broach handle used for being clamped and fixed on a bench drilling machine or an electric hand drill is arranged at one end of the broach rod of the broach, the broach can be driven by a motor to rotate at a high speed, so that the processing speed and the processing accuracy can be conveniently improved, and the labor intensity and the production cost can be greatly reduced; individual small holes can be manually processed through holding a handle of the broach rod in hand, so that individual products can be finely processed conveniently; as the concave notch is formed at the top of the broach rod and abrasive cloth of different thicknesses can be wound at the inner part of the notch, the inner holes can be buffed rapidly, the accuracy and the smooth finish of the inner holes of the buffed products can be improved, and the market competitiveness of the products can be improved.

Description

A kind of broaching tool of the endoporus that is used to polish

[technical field] the utility model is a kind of broaching tool of the endoporus that is used to polish, and belongs to the hardware ﹠ tools technical field.

[background technology] is in some airtight element parts, often some that need are used for connecting or installing drain, the through hole of wireway or buried via hole, as hydraulic jack or air pressure cylinder barrel, these through holes or buried via hole generally all require the machining accuracy height, surface smoothness is good, the instrument of this high accuracy and best bright finish of also not processing is on the market at present sold, add generally to adopt man-hour by hand and polish with crocus cloth, the labour intensity of this processing method is big, process velocity is slow, hole precision and fineness are low, and substandard products are many, cause the processing cost height of product, vast manufacturing enterprise and operator, all urgent hope has a kind of energy high-speed, high accuracy polish the mechanized tool of metal part endoporus, to adapt to increasing produce market demand, reduces production cost of products.

[summary of the invention] is for overcoming the milling tools that does not have the degree of finish high precision inner-pore at present, give the enterprise of production seal product and the above-mentioned difficulties that the operator brings, the utility model provides a kind of broaching tool of the endoporus that is used to polish, after making it to be installed to bench drill or electric hand drill, can polish to the metal endoporus fast, to satisfy manufacturing enterprise and operator's eager desire, reduce working strength of workers, reduce production cost of products.

For solving its technical problem, the technical solution adopted in the utility model is: the polishing broaching tool of designing is made up of knife bar, cutter head and handle of a knife, its feature is: 1, the end at knife bar is provided with cutter head, the other end is provided with is convenient to fixing or hand-held handle of a knife, is provided with the matrix notch that is used to twine emery cloth at the top of described cutter head.

2, described knife bar is made by tool steel, and its shape, thickness and length are similar to the drill bit of electric drill.

The utility model has following characteristics and progress: 1, because knife bar one end of the present utility model is provided with the handle of a knife that is used to be clamped to bench drill or electric hand drill, can rotate at a high speed by motor-driven, be convenient to improve process velocity and machining accuracy, be convenient to significantly reduce labour intensity and production cost; Also can carry out manual processing to indivedual apertures, be convenient to individual product is carried out fining-off with hand-held knife bar handle.

3, the top by knife bar has the matrix notch, can twine the emery cloth of different thicknesses in the notch, polishes fast, helps improving the precision and the fineness of the product endoporus that grinds, and improves competition capability.

[description of drawings] further specifies the utility model below in conjunction with drawings and Examples:

Fig. 1 is a structural representation profile of the present utility model;

Fig. 2 is the side view of Fig. 1.

[specific embodiment] is with reference to accompanying drawing: the broaching tool made from the instrument steel, form by knife bar 3, cutter head 2 and handle of a knife 4, end at knife bar 3 is provided with cutter head 2, be provided with concave notches 1 longitudinally on the top of cutter head, this notch is used to press from both sides, twine the crosus cloth or the fine sandpaper of different size, is provided with at the other end of knife bar 3 to be used to the handle of a knife 4 that grips or hold; During use, the handle of a knife of broaching tool is worked as drill bit to be clamped on bench drill or the electric drill like that, in the head concave notches of broaching tool, swathe the crosus cloth of the metal aperture that is used to polish, open power supply, allow emery cloth on the cutter head concave notches in the rotation of workpiece endoporus high speed, just can reach laborsaving, the quick and high-precision polishing processing tasks of finishing accurate endoporus.

Claims

1. the broaching tool of the endoporus that is used to polish is made up of knife bar, cutter head and handle of a knife, and it is characterized in that: the end at knife bar is provided with cutter head, and the other end is provided with is convenient to fixing or hand-held handle of a knife, is provided with the matrix notch that is used to twine emery cloth at the top of described cutter head.

2. the broaching tool of a kind of endoporus that is used to polish according to claim 1 is characterized in that described knife bar made by tool steel.