CN2700035Y

CN2700035Y - Cemented carbide spiral mill

Info

Publication number: CN2700035Y
Application number: CN 200420035603
Authority: CN
Inventors: 李良柱
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-04-10
Filing date: 2004-04-10
Publication date: 2005-05-18
Anticipated expiration: 2014-04-10

Abstract

The utility model relates to a cemented carbide spiral mill cutter, comprising a cutter rod and cutter blades in spiral shape arrangement. The utility model is characterized in that the cutter blades are composed of short tooth edges in multistage disconnection type arrangement; the short tooth edges with the same hierarchy of each two adjacent two cutter blades are in dislocation arrangement. The cemented carbide tooth edge part of the spiral milling cutter is in welded connection with a cutter rod part. The milling cutter effectively improves the vibration resistance of the cutter and reduces the cutting resistance of the cutter edge.

Description

A kind of carbide alloy screw-on cutter

Technical field

The utility model relates to a kind of carbide alloy screw-on cutter, belongs to the carbide alloy cutting tool class.

Background technology

Spiral milling cutter is a main cutting tool commonly used in the machinery manufacturing industry, and its major function is by the helical form bite more than two that distributes on the cylindrical cutter body cylindrical, and work piece is rotated cutting.This class screw-on cutter commonly used is at present divided by its material and structure, whole high-speed steel milling cutter, whole hard alloy milling cutter is arranged, welded type carbide alloy screw blade milling cutter, machine clamping type screw-on cutter etc.The screw-on cutter of above-mentioned various structure types, because its intrinsic structural form, in process, its each bar blade contacts with work piece continuously, therefore can produce bigger vibrations, and all participate in cutting, thereby cause the cutting resistance of blade also bigger just because of each bar cutting edge.

Technology contents

The purpose of the present utility model: aim to provide a kind of carbide alloy screw-on cutter of novel concept, both kept the cutting function of conventional helical milling cutter, can effectively improve the vibration resistance of cutter and the cutting resistance of reduction blade again.

This carbide alloy screw-on cutter is made up of the blade that knife bar 1 and spirality are arranged, and it is characterized in that: described blade by multistage, be the short land 3 that breakaway-element arranges and form; And require the short land 3 of same tagmeme on per two adjacent two blades to be dislocation arrangement.

Described screw-on cutter, the land portion of its carbide alloy and knife bar portion are and are welded to connect.

This carbide alloy circular knife according to above technical scheme design, compare with the congenerous screw-on cutter that generally uses at present, its advantage is: the resistance to shock that has both improved cutter hub, simultaneously can effectively reduce cutting resistance, owing to adopted breakaway-element, dislocation arrangement group cutter, also can reach and save the raw-material purpose of carbide alloy.

Description of drawings

Accompanying drawing 1 is the utility model agent structure schematic diagram;

Accompanying drawing 2 is that the AA of accompanying drawing 1 is to sectional drawing;

Accompanying drawing 3 is land dislocation Pareto diagram;

Accompanying drawing 4 is the hob schematic diagram.

Among the figure: 1, knife bar 2, cutting edge seat 3, short land

The specific embodiment

This carbide alloy screw-on cutter as shown in the figure, it is that select for use (for the whole high-speed steel milling cutter) that is embodied in material is not only in this improvement to a kind of inventive improvements of existing all kinds of milling cutters of congenerous; The more important thing is on the integral layout of blade.Described this carbide alloy screw-on cutter, first blade (cutting edge) is not one and is covered with continuously on whole piece cutting edge seat 2, but on spiral cutting edge seat, blade is disconnect type, and becoming the short land 3 of a multiple-cutting-edge, this is a main inventive point of the present utility model; It two is to take to be the dislocation shape to arrange on the arranging of the section shape blade on every adjacent two cutting edge seats 2; It three is that blade and milling cutter knife bar with carbide alloy is the welded type composite construction.

In addition, this dislocation and the milling cutter that is made of the blade that disconnects both can be made slotting cutter, also can make horizontal hob.

The milling cutter that the discontinuous blade of this dislocation shape (blade) is arranged is a kind of practice of " divide bits theoretical " in decades the research of cutter cutting theory being explored out according to the inventor fully.Use cutter of the present utility model, for several the short lands on a certain the cutting edge seat, though do not constitute continuous cutting face, but whole cutter for the dislocation arrangement, because the timely cover of the short land 3 on the adjacent postorder cutting edge seat has still constituted a continuous cutting face to work piece; Just because of the blades aligned of this disconnection, dislocation, the instrument resistance to shock of making improves greatly, and the cutting resistance appropriateness of getting back reduces.

Claims

1, a kind of carbide alloy screw-on cutter is made up of the blade that knife bar (1) and spirality are arranged, and it is characterized in that: described blade by multistage, be the short land (3) that breakaway-element arranges and form; And the short land of same tagmeme (3) on per two adjacent two blades is dislocation arrangement.