CN208728767U - A kind of helical milling threading tool - Google Patents

A kind of helical milling threading tool Download PDF

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Publication number
CN208728767U
CN208728767U CN201821486190.2U CN201821486190U CN208728767U CN 208728767 U CN208728767 U CN 208728767U CN 201821486190 U CN201821486190 U CN 201821486190U CN 208728767 U CN208728767 U CN 208728767U
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CN
China
Prior art keywords
helical
cutter head
threading tool
circular knife
section
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Active
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CN201821486190.2U
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Chinese (zh)
Inventor
叶吉刚
李鹏
叶记东
李攀
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Zhongshan Xinboyas Precision Tool Co Ltd
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Zhongshan Xinboyas Precision Tool Co Ltd
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Abstract

This application discloses helical milling threading tools, including central cylinder knife handle 1 and the cutter head 2 for being set to described 1 one end of knife handle, the cutter head 2 is equipped with multiple cutting edges 21, it is characterized by: the cutter head 2 further include: circular knife band 22, there is a central axis 3 on the helical milling threading tool, the circular knife band 22 is in trisection on the periphery 200 that a central axis 3 is set to the cutter head 2, helical flute 23, it is set on the cutter head 2 around the central axis 3, the helical flute 23 follows the circular knife band 22, it include the cutting edge 21 arranged in multiple axial directions according to constant spacing on the circular knife band 22.The resonance between the helical milling threading tool and workpiece can be reduced according to the cutting edge 21 that constant spacing arranges in multiple axial directions, structure is simple, easy to process.

Description

A kind of helical milling threading tool
[technical field]
This application involves machining fields, specifically, being related to a kind of helical milling threading tool.
[background technique]
Mill threading tool, when work the surplus of each cutter tooth successively compartment of terrain cutting workpiece passed in the processing of existing metal material The milling threading tool of system, the space width of cutter Zhou Ren is identical, in process with fixed frequency workpieces processing, in work pieces process mistake It being easy to generate chatter because of resonance in journey, milling threading tool is more deep, in a certain zero boundary Dian Chu, it is identically formed resonance with intrinsic frequency, So that cutter is generated biggish vibration, damage cutter, influences time and the quality of processing.
[utility model content]
The application to be solved to be the above-mentioned technical problem being directed to, and provides a kind of helical milling threading tool.
In order to solve the above technical problems, the application is achieved through the following technical solutions:
A kind of helical milling threading tool, including central cylinder knife handle and the cutter head for being set to described knife handle one end, the cutter head It is equipped with multiple cutting edges, the cutter head further include:
Circular knife band has a central axis on the helical milling threading tool, and the circular knife band is set around a central axis In on the periphery of the cutter head, the circular knife band is set up in trisection;
Helical flute is set on the cutter head around the central axis, and the helical flute follows the spiral Knife-band, the helical flute extend to the knife handle by the cutter head;
It include multiple cutting edges that multiple axial directions are arranged according to constant spacing, the cutting on the circular knife band The left and right ends of sword are equipped with the identical section of size, first composed by the section set on multiple cutting edge left ends Section line is the right side bearing of the helical flute, second section composed by the section of multiple cutting edge right ends Upper thread is the left side bearing of the helical flute, and two cutting edges are equipped with groove, and multiple grooves pass through described first Section line is connected to the adjacent helical flute with second section line.
Multiple cutting edges are circumferentially spaced and prolong according to constant spacing according to described in the shape of a spiral on same periphery It stretches, first section line and second section line are curve smooth and that displacement is equidistant.
Multiple grooves and multiple cutting edges are staggeredly set on circular knife band in the shape of a spiral and multiple grooves It is circumferentially spaced and extends according to constant spacing according to described on same periphery, the area of section of the groove and the cutting The area of section size of sword is corresponding.
The quantity of the cutting edge is X, and the particular number of the cutting edge is X >=2, and the quantity of the groove is Y, described The particular number of groove is Y >=1, and the quantitative relation between the cutting edge and the groove is X-Y=1.
The circular knife band not less than 5 ° and is not more than 30 ° with pitch angle alpha torsion.
The cutting edge has profile corresponding with the internal screw thread to be formed on workpiece.
The circular knife band has thread shape, and the metric system spiral shell of corresponding size can be generated on workpiece that meet national standards Line.
First section line and second section line are curve, and the curved surface of the helical flute is in indent parabolic Line style, the helical flute from the knife handle to the depth of the cutter head from shallow to deep, the surface light of the helical flute It is sliding.
There are wear resistant surface coatings on the cutter head.
The making material of the knife handle and the cutter head is wolfram steel.
Compared with prior art, above-mentioned application has the following advantages:
The circular knife band on the application helical milling threading tool is equipped with multiple cutting edges, and multiple cutting edges are in Helical form is arranged and axially arranges according to constant spacing, since the circular knife band is set up in trisection, the cutting edge The stability that can ensure the circular knife band reduces the resonance between the helical milling threading tool and workpiece, multiple cuttings Sword is set up in the shape of a spiral, i.e., multiple cutting edges and the inner hole wall of workpiece and non-concurrent a possibility that contacting, reducing resonance, The precision of drilling is ensured, structure is simple, low in cost.
[Detailed description of the invention]
Fig. 1 is the main view of the application helical milling threading tool.
Fig. 2 is the main view of the cutter head of the application helical milling threading tool.
Fig. 3 is the top view of the cutter head of the application helical milling threading tool.
[specific embodiment]
The application is described in further detail below by specific embodiment combination attached drawing.
As shown in Figures 1 to 3, a kind of helical milling threading tool, including central cylinder knife handle 1 and it is set to described 1 one end of knife handle Cutter head 2, the cutter head 2 be equipped with multiple cutting edges 21, it is characterised in that: the cutter head 2 further include: circular knife band 22, institute Stating has a central axis 3 on helical milling threading tool, the circular knife band 22 is set to the week of the cutter head 2 around a central axis 3 On side 200, the circular knife band 22 is set up in trisection;Helical flute 23 is set to the cutter head around the central axis 3 On 2, the helical flute 23 follows the circular knife band 22, and the helical flute 23 is extended to described by the cutter head 2 Knife handle 1;It include multiple cutting edges 21 that multiple axial directions are arranged according to constant spacing, the cutting edge on the circular knife band 22 21 left and right ends are equipped with the identical section 210 of size, 210, the section group set on multiple 21 left ends of cutting edge At the first section line 201 be the helical flute 23 right side bearing, set on described in multiple 21 right ends of cutting edge cut Second section line 202 composed by face 210 is the left side bearing of the helical flute 23, and two cutting edges 21 are equipped with groove 221, multiple grooves 221 are connected to the adjacent spiral with second section line 202 by first section line 201 Chip space 23.
Multiple cutting edges 21 are circumferentially spaced simultaneously according to described according to constant spacing in the shape of a spiral on same periphery Extend, first section line 201 is curve smooth and that displacement is equidistant with second section line 202.The cutting edge 21 Extend and be circumferentially spaced along same periphery, i.e., the stability before multiple cutting edges 21 can ensure the circular knife With 22 stable feed workpiece.
Multiple grooves 221 are staggeredly set in the shape of a spiral on circular knife band 22 with multiple cutting edges 21 and multiple institutes Groove 221 is stated to be circumferentially spaced and extend, the section face of the groove 221 according to constant spacing according to described on same periphery Product is corresponding to the area of section size of the cutting edge 21.The groove 221 is staggered with the multiple cutting edge 21, Not only it had ensured the reliability of tapping but also clast can be discharged.
The quantity of the cutting edge 21 is X, and the particular number of the cutting edge 21 is X >=1, the quantity of the groove 221 For Y, the particular number of the groove 221 is Y >=1, and the quantitative relation between the cutting edge 21 and the groove 221 is X-Y =1.
The circular knife band 22 not less than 5 ° and is not more than 30 ° with pitch angle alpha torsion.The helical angle of the circular knife band 22 α is greater than 0 °, therefore and unconventional cutter with staight grooves, the size of the helical angle determined according to the wall thickness of workpieces processing.
The cutting edge 21 has profile corresponding with the internal screw thread to be formed on workpiece.
The circular knife band 22 has thread shape, and the metric system of corresponding size can be generated on workpiece that meet national standards Screw thread.Can with cooperate many metric system fixing screws.
First section line 201 and second section line 202 are curve, therefore the song of the helical flute 23 Face be in inner sunken face type, the helical flute 23 from the knife handle 1 to the depth of the cutter head 2 from shallow to deep, the spiral The surface of chip space 23 is smooth.The helical flute 23 of inner sunken face type can be such that chip curling rises and increase the body for accommodating chip Product increases and moves back the efficiency of bits, the helical flute 23 from the knife handle 1 to the depth of the cutter head 2 from shallow to deep, the knife First 2 helical flutes 23 gone out can accommodate more cutting swarfs, and the cutting swarf is made slowly to exclude the helical flute 23, the smooth friction that can be reduced between chip in the surface of the helical flute 23.
There are wear resistant surface coatings on the cutter head 2.The surface covering can be nitrogen aluminium titanium or nitrogen titanium aluminized coating, cut When than the non-coated tool service life improve 3~5 times or more, improve cutting speed 20%~70%, reduce the loss of cutter.
The making material of the knife handle 1 and the cutter head 2 is wolfram steel.Wolfram steel has hardness height, excellent wear resistance, intensity big and tough Property preferable advantage, meet the requirement as helical milling threading tool material, it is cheap, be easy to save the cost.
Presently filed embodiment is explained in detail in summary, but the application is not limited to above embodiment. Even if it is to the application, various changes can be made, then still falls within the protection scope in the application.

Claims (10)

1. a kind of helical milling threading tool, including central cylinder knife handle (1) and it is set to the cutter head (2) of the knife handle (1) one end, institute Cutter head (2) are stated equipped with multiple cutting edges (21), it is characterised in that: the cutter head (2) further include:
Circular knife band (22) has a central axis (3) on the helical milling threading tool, and the circular knife band (22) is around a center Axis (3) is set on the periphery (200) of the cutter head (2), and the circular knife band (22) is set up in trisection;
Helical flute (23), around the central axis (3) be set to the cutter head (2) on, the helical flute (23) with With the circular knife band (22), the helical flute (23) extends to the knife handle (1) by the cutter head (2);
It include multiple cutting edges (21) that multiple axial directions are arranged according to constant spacing, the cutting on the circular knife band (22) The left and right ends of sword (21) are equipped with the identical section of size (210), are set to described section of multiple cutting edge (21) left ends First section line (201) composed by face (210) is the right side bearing of the helical flute (23), is set to multiple cutting edges (21) the second section line (202) composed by the section (210) of right end be the helical flute (23) left side bearing, two A cutting edge (21) is equipped with groove (221), and multiple grooves (221) pass through first section line (201) and described Second section line (202) is connected to the adjacent helical flute (23).
2. helical milling threading tool according to claim 1, it is characterised in that: multiple cutting edges (21) are in the shape of a spiral same Be circumferentially spaced and extend according to constant spacing according to described on one periphery, first section line (201) with described second section Upper thread (202) is curve smooth and that displacement is equidistant.
3. helical milling threading tool according to claim 2, it is characterised in that: multiple grooves (221) described are cut with multiple Cut sword (21) in the shape of a spiral staggeredly be set to circular knife band (22) on and multiple grooves (221) on same periphery according to described It is circumferentially spaced and extends according to constant spacing, the area of section of the groove (221) and the section face of the cutting edge (21) Product size is corresponding.
4. helical milling threading tool according to claim 1, it is characterised in that: the quantity of the cutting edge (21) is X, described to cut The particular number for cutting sword (21) is X >=2, and the quantity of the groove (221) is Y, the particular number of the groove (221) be Y >= 1, the quantitative relation between the cutting edge (21) and the groove (221) is X-Y=1.
5. helical milling threading tool according to claim 1, it is characterised in that: the circular knife band (22) is reversed with pitch angle alpha Not less than 5 ° and it is not more than 30 °.
6. helical milling threading tool according to claim 1, it is characterised in that: the cutting edge (21) have with will be on workpiece The corresponding profile of the internal screw thread of formation.
7. helical milling threading tool according to claim 1, it is characterised in that: the circular knife band (22) has thread shape, The metric thread of corresponding size can be generated on workpiece that meet national standards.
8. helical milling threading tool according to claim 1, it is characterised in that: first section line (201) and described second Section line (202) is curve, and the curved surface of the helical flute (23) is in indent parabolic type, the helical flute (23) From shallow to deep to the depth of the cutter head (2) from the knife handle, the surface of the helical flute (23) is smooth.
9. helical milling threading tool according to claim 1, it is characterised in that: have wear resistant surface coatings on the cutter head (2).
10. helical milling threading tool according to claim 1, it is characterised in that: the system of the knife handle (1) and the cutter head (2) Making material is wolfram steel.
CN201821486190.2U 2018-09-04 2018-09-11 A kind of helical milling threading tool Active CN208728767U (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2018214469757 2018-09-04
CN201821446975 2018-09-04

Publications (1)

Publication Number Publication Date
CN208728767U true CN208728767U (en) 2019-04-12

Family

ID=66033443

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821486190.2U Active CN208728767U (en) 2018-09-04 2018-09-11 A kind of helical milling threading tool

Country Status (1)

Country Link
CN (1) CN208728767U (en)

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Date Code Title Description
GR01 Patent grant
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: A spiral milling cutter

Granted publication date: 20190412

Pledgee: Zhongshan Rural Commercial Bank Co.,Ltd. Minmin Branch

Pledgor: ZHONGSHAN XINBO YASI PRECISION TOOL Co.,Ltd.

Registration number: Y2024980017553

PE01 Entry into force of the registration of the contract for pledge of patent right