CN205629492U

CN205629492U - Take sleeking sword milling cutter

Info

Publication number: CN205629492U
Application number: CN201620248259.2U
Authority: CN
Inventors: 莫傲然
Original assignee: Guangzhou Junjie Precision Tools Co Ltd
Current assignee: Guangzhou Junjie Precision Tools Co Ltd
Priority date: 2016-03-28
Filing date: 2016-03-28
Publication date: 2016-10-12
Anticipated expiration: 2026-03-28

Abstract

The utility model discloses a take sleeking sword milling cutter, including stalk portion and the head that is cylindric structure, head and stalk portion coaxial coupling, the chip groove that has many screw set is opened to the head, and the entity part that forms the chip groove on the head be the back of a knife blade, and chip groove and the intersecting line of the back of a knife blade on axial direction form the main cutting edge, and chip groove and the back of a knife blade form the front cutting edge at radial square ascending intersecting line, and the crossing formation knife tip of front cutting edge and main cutting edge is equipped with the sleeking sword on the knife tip. The utility model discloses a take sleeking sword milling cutter changes the design of traditional milling cutter knife tip point contact work piece, contacts the work piece together through the sleeking sword add and knife tip, and increase area of contact strengthens the wearability effectively, improves milling cutter's life, solve very easily appear that the roughness is bad in the facing of prior art motor transmission die cavity, knife mark, the short scheduling problem of cutter life to reach the technological effect of high -efficient high quality precision finishing.

Description

A kind of band wiper edges milling cutter

Technical field

This utility model relates to automobile gearbox processing technique field, refers in particular to a kind of for automobile gearbox die cavity The band wiper edges milling cutter that plane or the deepest die cavity plane machining use.

Background technology

In automobile gearbox processing technique field, the processed for automobile gearbox die cavity plane is to become Speed case manufactures the processing difficulties in field, the most irregularly or in deeper die cavity plane machining environment, easily Occur that roughness is bad, knife mark, allow the manufacturing defect such as cutter lifetime, be easily caused part rejection, allow The cost of charp tool increases.

In prior art, Hardmetal materials typically selected by the cutter for this area processing, owing to hard closes Gold copper-base alloy has a physical property of equilibrium, and higher toughness and wearability, beneficially automobile variable speed box Chamber plane machining milling processes.But how by the geometric angle of improvement of cutter, thus improve pocket machining Precision, can allow again cutting-tool's used life extend, and improves product quality, and lowers the cost of charp tool, is mesh The processing operation of front this area is badly in need of solving the technical problem that.

Utility model content

This utility model purpose is to provide a kind of novel band wiper edges milling cutter, solves prior art automobile and becomes Easily there are the manufacturing issues such as roughness is bad, knife mark, cutter life are short in speed box chamber plane machining, from And reach the precision machined technique effect of high-effect high-quality.

Be given in order to achieve the above object, the technical solution of the utility model:

A kind of band wiper edges milling cutter, including being shank and the head of cylindrical-shaped structure, described head and handle Portion is coaxially connected；Described head has the chip area that a plurality of spiral is arranged, and described head is formed described chip removal The entity part of groove is the knife back, and described chip area and described knife back intersection in the axial direction forms main cutting Sword, described chip area and described knife back intersection in radial directions forms front cutting edge, described front cutting edge With the point of a knife that is crossed to form of main cutting edge, described point of a knife is provided with wiper edges.

Further, described wiper edges is the one section of plane cutting edge arranged on described main cutting edge.This plane Cutting edge changes the processing mode of tradition milling cutter point of a knife point cantact workpiece, and changing into structure is repairing of plane cutting edge Light sword contacts the design of workpiece together with point of a knife, it is to avoid only have the point of point of a knife contact workpiece to cut in milling process Cut mode, improve the wearability of milling cutter, it is ensured that the cutting power of milling cutter, extend the operation time of milling cutter and make Use the life-span.

On the basis of the above, the width of described plane cutting edge is 0.15 to 0.3mm, allows milling cutter and work piece Contact position become linear contact from point cantact, form smooth handing-over, be effectively reduced the coarse of work piece Degree.

Further, the angle that described plane cutting edge and point of a knife are formed is 85 to 95 degree, preferably 90 degree. By this plane cutting edge together with point of a knife, contact with work piece, allow contact area increase, thus alleviate cutter The holding capacity of point, improves the wearability of cutter, it is to avoid tool wear occur during Milling Process processes Situation.

Further improvement to this utility model band wiper edges milling cutter, described chip area is provided with four, is conducive to Improve the impulsive force of band wiper edges milling cutter and hardness, make the inlet hole radial cutting in the course of processing more neat.

On the basis of the above, described main cutting edge and front cutting edge complement each other to form multiple master with chip area and cut Cut sword and front cutting edge, thus increase in the quantity of blade, strengthen the cutting energy that band wiper edges milling cutter is overall Power.

Make improvements for improving the sharpness of band wiper edges milling cutter, in the angle formed between described main cutting edge is Re-entrant angle.Compared with traditional convex drift angle design, efficiently reduce radial force during milling operation, improve milling The locating effect of operation.

On the basis of the above, the angle formed between described main cutting edge is 170 to 180 degree, preferably 174 Degree.This angle design had both ensured the intensity of cutter, can keep again the sharpness of main cutting edge, allowed band wiper edges Milling cutter persistently keeps rigidity and powerful cutting power, beneficially feed milling machine operation.

Further, the angle that described point of a knife is formed is 85 to 90 degree, preferably 87 degree.Allow point of a knife more Add sharp, cutting operation more easily, can feed trippingly, efficiently reduce work piece cuts hole roughness.

Further, described band wiper edges milling cutter is made up of Hardmetal materials.Due to Hardmetal materials The higher hardness being had and wearability, beneficially automobile gearbox die cavity plane height light high accuracy adds work Industry.It is generally selected ISO K10 to the K30 trade mark, when die cavity is compared with deep or time system of processing rigidity is poor, can be excellent Select the trade mark of the good toughness such as ISO K30～K40D.

Band wiper edges milling cutter of the present utility model, has the beneficial effects that, changes tradition milling cutter point of a knife point cantact quilt The milling mode of workpiece, by increasing wiper edges, this smoothing in the angle of described main cutting edge with point of a knife Sword is the cutting edge of one section of plane, contacts work piece together with point of a knife, increases contact area, and from point cantact Become linear contact, form smooth handing-over, reduce the roughness of work piece, alleviate the holding capacity of point of a knife, Effectively strengthen the wearability of milling cutter, improve operation time and the service life, beneficially automobile variable speed of cutter The processing and milling operation of box chamber plane, in the automobile gearbox die cavity plane machining of solution prior art easily The manufacturing technology problems such as roughness is bad, knife mark, cutter life are short occur, thus reaches high-effect high-quality essence The technique effect of close processing.

Accompanying drawing explanation

Fig. 1 is the front view of this utility model a kind of band wiper edges milling cutter；

Fig. 2 is the partial schematic diagram of the band wiper edges milling cutter shown in Fig. 1；

Fig. 3 is the enlarged diagram of the wiper edges part of the band wiper edges milling cutter shown in Fig. 1；

Fig. 4 is the angle schematic diagram of the main cutting edge of the band wiper edges milling cutter shown in Fig. 1；

Fig. 5 is the angle schematic diagram of the point of a knife of the band wiper edges milling cutter shown in Fig. 1.

Detailed description of the invention

Accompanying drawings a kind of band wiper edges milling cutter of the present utility model.

As it is shown in figure 1, this band wiper edges milling cutter includes shank 1 and head 2, wherein, shank 1, head Portion 2 is cylindrical-shaped structure, and head 2 is coaxially connected with shank 1, and forms coaxial clyinder；Head 2 On have a plurality of spiral arrange chip area 3, wherein, on head 2 formed chip area 3 entity part be The knife back 4, chip area 3 and the knife back 4 intersection formation main cutting edge 5 in the axial direction, and chip area 3 Front cutting edge 6 is formed, the phase of front cutting edge 6 and main cutting edge 5 with the knife back 4 intersection in radial directions Hand over and form point of a knife 7, point of a knife 7 is additionally provided with wiper edges 8.

Preferably, described chip area 3 is provided with four, is conducive to improving impulsive force and the hardness of milling cutter, allows and add Inlet hole radial cutting during work is more neat.

As it is shown in figure 1, many group main cutting edges 5 and front cutting edge 6 can increase blade quantity, strengthen band and repair The cutting power that light blade milling cutter is overall.

In actual milling process, point of a knife 7 is to contact work piece at first, and it is maximum that it bears resistance, holds most Easily it is worn.As shown in Figure 1-Figure 3, by setting up wiper edges 8 on point of a knife 7, i.e. set on point of a knife 7 Put one section of plane cutting edge, change the processing mode of tradition milling cutter point of a knife point cantact workpiece, change into structure be The wiper edges 8 of plane cutting edge contacts the design of workpiece together with point of a knife 7, it is to avoid only have cutter in milling process The point cutting way of point 7 contact workpiece, improves the wearability of milling cutter, keeps the cutting power of milling cutter, extend Operation time with wiper edges milling cutter and service life.

Preferably, the width of above-mentioned plane cutting edge (i.e. wiper edges 8) is 0.15 to 0.3mm, allow milling cutter with The contact position of work piece becomes linear contact from point cantact, forms smooth handing-over, is effectively reduced processed The roughness of part.Wherein, the width of above-mentioned plane cutting edge (i.e. wiper edges 8) refers to above-mentioned plane cutting edge (i.e. Wiper edges 8) width in radial directions.

Further optimizing, the angle that above-mentioned plane cutting edge (i.e. wiper edges 8) is formed with point of a knife 7 is 85 To 95 degree, preferred version is 90 degree.By this plane cutting edge together with point of a knife 7, contact with work piece, Allow contact area increase, thus alleviate the holding capacity of point of a knife 7, improve the wearability of cutter, it is to avoid in milling The situation of tool wear occurs during processed.In this utility model, above-mentioned plane cutting edge (is i.e. repaiied Light sword 8) angle that formed with point of a knife 7 is it can be appreciated that above-mentioned plane cutting edge (i.e. wiper edges 8) is with secondary The angle of cutting edge 6.

Make to optimize for improving the sharpness of band wiper edges milling cutter, as shown in Figure 4, formed between main cutting edge 5 Angle can be indent angle, compared with traditional convex drift angle design, efficiently reduce feed and add the footpath in man-hour Xiang Li, improves the locating effect of milling.

Wherein, the angle formed between main cutting edge 5 can be 170 to 180 degree, preferably 174 degree. This angle design had both ensured the intensity of cutter, can keep again the sharpness of main cutting edge 5, allowed band wiper edges milling Cutter persistently keeps rigidity and powerful cutting power, beneficially feed milling machine operation.

As it is shown in figure 5, the angle that point of a knife 7 is formed is 85 to 90 degree, preferred version is 87 degree.Cutter relieving Point is 7 sharper, cutting operation more easily, can feed trippingly, efficiently reduce work piece cuts hole Roughness.

Preferably, band wiper edges milling cutter of the present utility model is made up of Hardmetal materials.Due to hard alloy Higher hardness and wearability, beneficially automobile gearbox die cavity plane height light that material is had are processed in high precision Operation.It is generally selected ISO K10 to the K30 trade mark, when die cavity is compared with deep or time system of processing rigidity is poor, can The trade mark of the good toughness such as preferably ISO K30～K40D.

Further, since band wiper edges milling cutter of the present utility model belongs to efficient high-accuracy metal cutting tool, cutter Point and cutting edge are the sharpest, easily produce microcosmic chipping, affect cutter life on conventional equipment, therefore, Must manufacture in the five axle contour rigid device of CNC cutter sharpener, and magnifier environment more than 100 times Under, observe cutting edge state.Crucial size Control ensures the accuracy of manufacture by tolerance, including main cutting edge Interior re-entrant angle between 5 174 ° ± 1 °, the angle of point of a knife 7 87 ° ± 0.5 °, the width of the plane cutting edge of wiper edges 8 0.15～0.3mm, the angle of the plane cutting edge of wiper edges 8 90 °.

Preferably, band wiper edges milling cutter of the present utility model can also pass through surface configuration PVD coating, blunt Change the multiple auxiliary process means such as layer, improve the durability of band wiper edges milling cutter.

The announcement of book and teaching according to the above description, this utility model those skilled in the art can also be right Above-mentioned embodiment changes and revises.Therefore, this utility model is not limited to be disclosed above and describe Detailed description of the invention, should also be as falling into power of the present utility model to modifications and changes more of the present utility model In the protection domain that profit requires.Although additionally, this specification employs some specific terms, but these Term merely for convenience of description, does not constitute any restriction to this utility model.

Claims

1. a band wiper edges milling cutter, it is characterised in that including shank and the head being cylindrical-shaped structure, described head is coaxially connected with shank；Described head has the chip area that a plurality of spiral is arranged, the entity part forming described chip area on described head is the knife back, described chip area and described knife back intersection in the axial direction forms main cutting edge, described chip area and described knife back intersection in radial directions forms front cutting edge, described front cutting edge is crossed to form point of a knife with main cutting edge, and described point of a knife is provided with wiper edges.

Band wiper edges milling cutter the most according to claim 1, it is characterised in that described wiper edges is the one section of plane cutting edge arranged on described main cutting edge.

Band wiper edges milling cutter the most according to claim 2, it is characterised in that the width of described plane cutting edge is 0.15mm to 0.3mm.

Band wiper edges milling cutter the most according to claim 3, it is characterised in that the angle that described plane cutting edge and point of a knife are formed is 85 to 95 degree.

Band wiper edges milling cutter the most according to claim 1, it is characterised in that described chip area is provided with four.

Band wiper edges milling cutter the most according to claim 1, it is characterised in that the angle formed between described main cutting edge is interior re-entrant angle.

Band wiper edges milling cutter the most according to claim 6, it is characterised in that the described interior re-entrant angle formed between described main cutting edge is 170 degree to 180 degree.

Band wiper edges milling cutter the most according to claim 1, it is characterised in that the angle that described point of a knife is formed is 85 to 90 degree.

9. according to the band wiper edges milling cutter described in any one of claim 1 to 8, it is characterised in that described band wiper edges milling cutter is made up of Hardmetal materials.