CN202239692U

CN202239692U - Hole processing tool

Info

Publication number: CN202239692U
Application number: CN2011203472010U
Authority: CN
Inventors: 李友生
Original assignee: TONGLING SNAYUAN SPECIAL CASTING CO Ltd
Current assignee: TONGLING SNAYUAN SPECIAL CASTING CO Ltd
Priority date: 2011-09-16
Filing date: 2011-09-16
Publication date: 2012-05-30
Anticipated expiration: 2021-09-16

Abstract

The utility model discloses a hole processing tool, which is used for processing step holes for a microscope base and a box cover on a screw pump. The hole processing tool comprises a tool bit and a tool shank, wherein four cutting edges are formed on the outer periphery of the tool bit, and consist of two high tooth cutting edges which are formed oppositely and two low tooth cutting edges which are arranged oppositely; the high tooth cutting edges and the low tooth cutting edges are formed at a certain interval along an axial direction; and the low tooth cutting edges are formed on the end part of the tool bit. In the technical scheme, the tool bit of the hole processing tool is provided with four cutting edges, a pair of high tooth cutting edges for processing large-diameter holes and a pair of small tooth cutting edges for processing small-diameter hole are formed respectively, and the low tooth cutting edges are formed on the end part of the tool bit, so that the step holes in the microscope base and the box cover of the screw pump can be processed at one time without replacing the tool, the processing efficiency of the step holes can be increased, and the coaxiality of the step holes can be ensured.

Description

A kind of aperture knife tool

Technical field

The utility model relates to the production equipment of screw pump and parts thereof, and specifically, the utility model relates to a kind of aperture knife tool.

Background technology

At present, the part such as microscope base and lid for being used on the screw pump which is provided with coaxial stepped hole; Because the aperture is different, is adding man-hour, need use the different aperture knife tool of model; A kind of cutter of model can only process the hole in same aperture, just need change different cutters for the processing of stepped hole, and working (machining) efficiency is lower; And after having changed cutter; Need proofread and correct cutter again to cooperate machining object, influence the top bar machining accuracy in hole of microscope base and lid easily, can not guarantee the top bar axiality in hole of microscope base and lid.

The utility model content

The utility model technical problem to be solved provides a kind of aperture knife tool, to improve microscope base and the working (machining) efficiency of the stepped hole on the lid and the purpose of the axiality that guarantees stepped hole on the screw pump.

In order to solve the problems of the technologies described above; The technical scheme that the utility model adopted is: a kind of aperture knife tool; Be used to process microscope base and the stepped hole of lid on the screw pump; Said aperture knife tool comprises cutter head and handle of a knife, on the outer circumference surface of said cutter head, is provided with four cutting edges, and said four cutting edges are made up of two that are oppositely arranged high tooth cutting edges and two low tooth cutting edges that are oppositely arranged; Said high tooth cutting edge and low tooth cutting edge keep at a certain distance away on axial direction, and said low tooth cutting edge is located at the end of said cutter head.

Between said low tooth cutting edge and high tooth cutting edge, be provided with axial row on the said cutter head and cut groove.

Said four cutting edges are the carbide cutting sword.

Said cutter head and handle of a knife are processed one.

The utility model adopts technique scheme, and four cutting edges are set on the cutter head of aperture knife tool, a pair of in twos high tooth cutting edge of processing large diameter hole and the low tooth cutting edge of processing small diameter bore of forming respectively; And low tooth cutting edge is located at the end of cutter head; When microscope base on the processing screw pump and the stepped hole on the lid, can once accomplish, need not change cutter; Can improve the working (machining) efficiency of stepped hole; And can guarantee the axiality of stepped hole, and the material of four cutting edges is carbide alloy, can improve the stability of tool life and product size.

Description of drawings

Fig. 1 is the utility model structural representation;

Mark among the above-mentioned figure is: 1, cutter head; 2, handle of a knife; 3, high tooth cutting edge; 4, low tooth cutting edge; 5, row cuts groove.

The specific embodiment

As shown in Figure 1; A kind of aperture knife tool of the utility model; Be used to process microscope base and the stepped hole of lid on the screw pump, said aperture knife tool comprises cutter head 1 and handle of a knife 2, and said cutter head 1 is processed one with handle of a knife 2; On the outer circumference surface of said cutter head 1, be provided with four cutting edges; Said four cutting edges are made up of with two low tooth cutting edges 4 that are oppositely arranged two that are oppositely arranged high tooth cutting edges 3, and said high tooth cutting edge 3 keeps at a certain distance away on axial direction with low tooth cutting edge 4, and said low tooth cutting edge 4 is located at the end of said cutter head 1.

Between said low tooth cutting edge 4 and high tooth cutting edge 3, be provided with axial row on the said cutter head 1 and cut groove 5.

Said four cutting edges are the carbide cutting sword.

This cutter adopts said structure, and four cutting edges are set on the cutter head 1 of cutter, a pair of in twos high tooth cutting edge 3 of processing large diameter hole and the low tooth cutting edge 4 of processing small diameter bore of forming respectively; And low tooth cutting edge 4 is located at the end of cutter head 1; When microscope base on the processing screw pump and the stepped hole on the lid, can once accomplish, need not change cutter; Can improve the working (machining) efficiency of stepped hole; And can guarantee the axiality of stepped hole, and the material of four cutting edges is carbide alloy, can improve the stability of tool life and product size.

Combine accompanying drawing that the utility model has been carried out exemplary description above; Obviously the concrete realization of the utility model does not receive the restriction of aforesaid way; As long as adopted the method design of the utility model and the improvement of the various unsubstantialities that technical scheme is carried out; Or the design of the utility model and technical scheme are directly applied to other occasion without improving, all within the protection domain of the utility model.

Claims

1. aperture knife tool; Be used to process microscope base and the stepped hole of lid on the screw pump; Said aperture knife tool comprises cutter head and handle of a knife, it is characterized in that: on the outer circumference surface of said cutter head, be provided with four cutting edges, said four cutting edges are made up of two that are oppositely arranged high tooth cutting edges and two low tooth cutting edges that are oppositely arranged; Said high tooth cutting edge and low tooth cutting edge keep at a certain distance away on axial direction, and said low tooth cutting edge is located at the end of said cutter head.

2. aperture knife tool according to claim 1 is characterized in that: between said low tooth cutting edge and high tooth cutting edge, be provided with axial row on the said cutter head and cut groove.

3. aperture knife tool according to claim 1 and 2 is characterized in that: said four cutting edges are the carbide cutting sword.

4. aperture knife tool according to claim 3 is characterized in that: said cutter head and handle of a knife are processed one.