CN2853245Y

CN2853245Y - Transposition milling cutter combined with machine tool body

Info

Publication number: CN2853245Y
Application number: CN 200520022197
Authority: CN
Inventors: 李晓双; 丁慧敏; 陈晓杰; 于国华; 王世敏; 张国富; 顾永进
Original assignee: Harbin No1 Tool Co Ltd
Current assignee: Harbin No1 Tool Co Ltd
Priority date: 2005-12-22
Filing date: 2005-12-22
Publication date: 2007-01-03
Anticipated expiration: 2015-12-22

Abstract

The utility model relates to an indexable bed built-up cutter. The carbide alloy indexable built-up cutter with multi standing blades corresponds with the bed way wire. The corresponding part between built-up cutter and bed way is connected by two 45 degrees indexable angel cutters. The corresponding part with the bed surface is linked by a plurality of same blades three-lip indexable cutter with the tooth of each milling cutter and the tooth between adjacent milling cutters stagger-arranged. The indexable bed built-up cutter of the utility model has the advantages of tense structure, intelligent design, easy installation, unhindered chip removal and high efficiency.

Description

Indexable bed piece cutter block

Technical field

The utility model belongs to efficient roughing gang cutter milling cutter, especially relates to a kind of indexable cutter block that is used for machining tool lathe bed mountain guide rail.

Background technology

Machine industry is as the basis of industry, and development was swift and violent in recent years.The annual production of domestic each big machine tool plant increases at double or several fold, how to increase substantially production efficiency and product quality, has become the matter of great urgency of machine industry.Bed piece is the core of whole lathe, is the important component part of lathe, so its processing is the problem of very paying close attention in the industry always.

Its structure of cutter block of the existing machining tool lathe bed of machine tool plant is indexable paperback clip type structure, and blade clamps by voussoir, and part is many, complex structure, blade transposition inconvenience.Because of the blade paperback, the stressed cross section of blade is little, and edge strength is low, and blade abrasion is fast, needs frequent transposition, has taken mass efficient process time.Because blade clamps by voussoir, be difficult to guarantee that blade exchanges precision.Because of its complex structure, number of effective actual teeth is few, cuts uneven stable yields and gives birth to vibration, and the workpiece to be machined surface roughness is poor, and working (machining) efficiency is low, and the workpiece accuracy molded lines that processes does not reach dimension precision requirement.The cutter block life-span of this structure is low, and therefore low precision can not satisfy production requirement.The hard alloy rotatable cutter block that at present domestic other cutting tool factory produces, unreasonable because of its structural design, the milling cutter life-span is low, low precision, efficient is low, does not satisfy growing production demand.

Summary of the invention

The purpose of this utility model is to overcome the weak point that exists in the above-mentioned technology, and a kind of compact conformation, reasonable in design is provided, milling cutter long service life, the indexable bed piece cutter block that machining accuracy is high.

In order to achieve the above object, the technical solution adopted in the utility model is: be corresponding with bed piece mountain guide rail molded lines by many hard alloy rotatable milling cutter combinations the upright dress of blade, cutter block and the corresponding position of guide rail, lathe bed mountain are by two 45 ° indexable angle milling cutter overlap joints, with the corresponding position of lathe bed planar section by many three sword indexable milling cutters overlap joints of the upright dress of identical blade, every cutter tooth between each cutter tooth on the milling cutter and adjacent two milling cutters is staggered.

The utility model has the advantages that:

1, compact conformation, installation reasonable in design, easy, chip removal is smooth and easy, the working (machining) efficiency height;

2, in time insert to new blade after the wearing and tearing of the utility model blade cutting edge, transposition is convenient, and cutter life improves more than ten times.This milling cutter is the ideal homemade cutter of present domestic machining tool lathe bed mountain guide rail.Blade exchange is convenient, transposition is flexible, the location is reliable, the precision height, and the life-span is long.

Description of drawings

Fig. 1 is that the indexable bed piece of the utility model mountain track combination milling cutter molded lines always overlaps schematic diagram;

Fig. 2 is the 8th the overlap joint schematic diagram of angle milling cutter;

Fig. 3 is the left view of Fig. 2;

Fig. 4 is the front view of Fig. 2;

Fig. 5 is the 9th the blade of angle milling cutter overlap joint schematic diagram;

Fig. 6 is the left view of Fig. 5;

Fig. 7 is the front view of Fig. 5;

Fig. 8 be the 8th angle milling cutter, the 9th the blade of angle milling cutter overlap joint schematic diagram;

Fig. 9 is the left view of Fig. 8;

Figure 10 is the 7th the blade of face and side cutter overlap joint schematic diagram;

Figure 11 is the left view of Figure 10;

Figure 12 is the front view of Figure 10.

The specific embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

By Fig. 1-Figure 12 as can be known, the utility model is corresponding with bed piece

mountain guide rail

8,9,13,14 molded lines by many hard alloy rotatable milling cutter combinations the upright dress of blade, cutter block and lathe bed

mountain guide rail

8,9,13,14 corresponding positions are by two 45 ° indexable angle milling cutter overlap joints, with the corresponding position of lathe bed planar section by many three sword indexable milling cutters, 1,2,3,4,5,6,7,10,11,12 overlap joints of the upright dress of identical blade, every cutter tooth between each cutter tooth on the milling cutter and adjacent two milling cutters is staggered.

Indexable 45 degree milling cutter, its structure is 45 ° of tool cutting edge angles, insert tangential is arranged on the 45 degree face, blade is fixed on the cutter hub in the corresponding insert groove with a screw, it is one group that four blades overlap mutually, constitute one group of effective cutting teeth, 8 groups of effective teeth are evenly distributed on the milling cutter circumference, are staggered between each blade.

With the corresponding indexable side and

face milling cutter

1,2,3,4,5,6,7,10,11,12 in position, bed piece plane, its structure is 90 ° of tool cutting edge angles, insert tangential is arranged on 90 ° of faces of cylinder, two blade overlap joints are one group, constitute one group of effective tooth, blade changes 7 ° of axial rakes respectively, and its direction is with milling cutter center line symmetry, 6 groups of effective teeth are evenly distributed on the milling cutter circumference, and five equilibrium is staggered between each blade.

By shown in Figure 1,15 is workpiece to be machined among the figure, by 1～14 the blade of milling cutter overlap joint is formed cutter block, the 8th totally four is cutter cutter cutter, the 14th cutter, the 13rd cutter, the 9th angle milling cutter, wherein the 8th cutter, the 9th is overlapped to form among the figure mountain, left side guide rail molded lines to cutter, the 13rd is overlapped to form mountain, right side guide rail molded lines to cutter, the 14th to cutter; 1～7 totally ten is cutter cutter cutter, 10～12 face and side cutters, wherein 1～7 cutter is overlapped to form lathe left side lathe bed, and 10～12 being overlapped to form lathe left side lathe bed.This 14 has formed this cover bed piece mountain track combination milling cutter to the accurate reasonable combination of cutter.Described in the utility model 14 all adopt all blades of cutter overlapping mode to connect, and accurately are overlapped to form bed piece mountain guide rail molded lines, then whole molded lines are rationally cut apart, and each section is designed to independent one milling cutter.The mountain rail sections is by two 45 degree milling cutter combination processing, and other lathe bed part is by face and side cutter combination processing.As cutter block, require every cutter hub thick very accurate milling cutter, thickness deviation is controlled at ± 0.01mm, and accurate Calculation is every the width of cutter, the amount of leaning out of strict control blade, the external diameter control of milling cutter is strict.The thickness and the external diameter of strict control milling cutter in the process of design, technology, programming, processing to guarantee the overall accuracy after milling cutter assembles, are guaranteed the lathe bed mountain guide rail molded lines that processes.

Angle milling cutter, be inlaid with 16,17,18,19 4 blades by Fig. 2, Fig. 3, the shown in Figure 4 the 8th on it, be overlapped to form one group of effective tooth, cutter tooth is staggered each other, reduces vibration, makes stable cutting.The blade screw is fixed on blade on the cutter hub, and blade clamps by cutting force.Milling cutter through solid modelling, repeated calculation, measurement correction analysis, is determined radial rake α=9 °, axial rake β=3 ° of cutter in design.Radial rake forms the relief angle drop, and axial rake forms cutting edge inclination.Blade is upright assembling structure, and the cross section of bearing cutting force is big.The milling cutter technical parameter is reasonable in design, accurate, has guaranteed that the milling cutter cutting is brisk and has had enough intensity.As can be seen from Figure 4,8 groups of effective teeth are evenly distributed on circumference, that is to say that this angle cutter has 8 * 4=32 blade, are guaranteeing milling cutter intensity and chip removal smoothly under the prerequisite, and number of effective actual teeth is many as far as possible, greatly to improve working (machining) efficiency.

By Fig. 5, Fig. 6, the shown in Figure 7 the 9th angle milling cutter.Be overlapped to form one group of effective tooth by four blades, 8 groups of effective teeth are evenly distributed on circumference.

Be staggered by cutter tooth between Fig. 8, each cutter tooth shown in Figure 9 and the adjacent cutter, the angle accurate Calculation that it staggers is reasonable in design, has not only guaranteed the amount of lap of adjacent two blades but also do not interfered.The blade of a whole set of milling cutter has all adopted this staggered pattern each other, make stable cutting, the vibration of its system of processing reduces, precision to the precision of processing work and lathe is all very favourable, the milling cutter in the milling process and the system vibration problem of lathe have been solved, thereby can obtain satisfied machining accuracy, and prolong the life-span of milling cutter.

Right shown in Figure 9, in order to make mutually noninterfere between stable cutting and blade, same as being staggered between the cutter tooth of the cutter tooth of cutter and adjacent two cuttves.In order to cut, thereby producing drop FRI on circumference, blade forms radial clearance angle, the FRI value is got between 1.0～1.2.

By Figure 10, Figure 11, face and side cutter shown in Figure 12, be overlapped to form one group of effective tooth by two blades, two

blades

21,22 are one group of effective tooth, sign P2 is a chip area.Milling cutter through solid modelling, repeated calculation, measurement correction analysis, is determined radial rake α=9 °, axial rake β=7 ° of cutter in design.Rotating shaft is to 7 ° of anterior angles ,-7 ° respectively for two blades in same group of effective tooth, and with milling cutter center line symmetry, it is brisk to be beneficial to stable cutting.

Claims

1, a kind of indexable bed piece cutter block, comprise blade, it is characterized in that: make up and bed piece mountain guide rail (8) by many hard alloy rotatable milling cutters the upright dress of blade, (9), (13), (14) molded lines is corresponding, cutter block and lathe bed mountain guide rail (8), (9), (13), (14) corresponding position is by two 45 ° indexable angle milling cutter overlap joints, with the corresponding position of lathe bed planar section by many three sword indexable milling cutters (1) of the upright dress of identical blade, (2), (3), (4), (5), (6), (7), (10), (11), (12) overlap joint whenever is staggered the cutter tooth between each cutter tooth on the milling cutter and adjacent two milling cutters.

2, indexable bed piece cutter block according to claim 1, it is characterized in that: indexable 45 degree milling cutter, its structure is 45 ° of tool cutting edge angles, insert tangential is arranged on the 45 degree face, blade is fixed on the cutter hub in the corresponding insert groove with a screw, and it is one group that four blades overlap mutually, constitutes one group of effective cutting teeth, 8 groups of effective teeth are evenly distributed on the milling cutter circumference, are staggered between each blade.

3, indexable bed piece cutter block according to claim 1, it is characterized in that: with the corresponding indexable side and face milling cutter in position, bed piece plane (1), (2), (3), (4), (5), (6), (7), (10), (11), (12), its structure is 90 ° of tool cutting edge angles, insert tangential is arranged on 90 ° of faces of cylinder, two blade overlap joints are one group, constitute one group of effective tooth, blade changes 7 ° of axial rakes respectively, its direction is with milling cutter center line symmetry, 6 groups of effective teeth are evenly distributed on the milling cutter circumference, and five equilibrium is staggered between each blade.