CN87210246U

CN87210246U - Axial fine turning type changeable surface milling cutter

Info

Publication number: CN87210246U
Application number: CN 87210246
Authority: CN
Inventors: 桂育鹏
Original assignee: Meng Zhaoqun Beijing Qingfeng Machine Tool Factory; BEIJING MUNICIPAL TECHNICAL EXCHANGE STATION
Current assignee: Meng Zhaoqun Beijing Qingfeng Machine Tool Factory; BEIJING MUNICIPAL TECHNICAL EXCHANGE STATION
Priority date: 1987-07-21
Filing date: 1987-07-21
Publication date: 1988-12-14

Abstract

The utility model discloses an axial fine turning type changeable surface milling cutter, which is an improvement and an innovation to the domestic GB5342-85 changeable surface milling cutter which exists the defect in the production and the use process. The utility model adopts the axial fine turning device with high rigidity which is different from the abroad kindred product. Tested in the case of the heavy cutting and heavy shock cutting over the national standard, the utility model mode effectively solves the shaft direction moving of the blade and the blade base of the changeable surface milling cutter and improves the end hopping and the positioning precision of the smoothing edge. The utility model has the advantages of reasonable design, compact structure, high rigidity, good manufacturability, high reliability and stable and effective fine turning precision.

Description

Axial fine turning type changeable surface milling cutter

The utility model is applied to the Milling Process on machine components plane.

The GB5342-85 indexable face milling cutter of domestic production at present, most of laughable full formula structure of Sweden that adopts, there are the following problems in producing and using for many years:

1, milling cutter is not owing to there is axial brake, and in the big working angles of impact, blade and blade bearing are easy to take place axial float, influence the Tool in Cutting performance.

2, milling cutter is not owing to there is axial micromatic setting, and the end of blade wiper edges is jumped precision, and the difficult specification requirement that reaches the GB regulation influences machined surface quality.

Main task of the present utility model is the problem at above-mentioned existence, improves and innovates, and has adopted the high rigidity shaft different with the similar products at home and abroad structure to micromatic setting.Thereby the axial float and the end that have effectively solved cutting plate for milling cutters are jumped precision problem.

Structure and characteristics after below in conjunction with accompanying drawing the utility model being improved are described further;

Fig. 1 is a front view of the present utility model, and Fig. 2 is the side view of Fig. 1, and Fig. 3 is Fig. 2 N-N cutaway view, and Fig. 4 is the cutaway view of Fig. 2 M-M.The utility model is made up of 6 bare bones.

1, the cutter groove on the cutter hub (1) adopts square three-way groove, and briquetting (6) and blade bearing (2) be 11 ° of inclined-planes each other, by double end (about revolve) screw (5), with blade (3) firm grip in square groove.Its characteristics: 1. cutter hub (1) cutter groove adopts square three-way groove, and is better than general face milling cutters cutter groove processing technology, is easy to guarantee machining accuracy and tissue batch process; 2. directly locate (3) 11 ° of major flanks of blade and cutter hub (1) square groove bottom surface, has reduced the size chain length and the accumulated error that causes than general face milling cutters, has improved the radial location precision; 3. briquetting (6) and blade bearing (2) 11 ° of inclined-planes each other, by double end (about revolve) screw (5) with blade (3) firm grip in square groove.For axial micromatic setting provides the space, accomplished the structure compact and reasonable simultaneously.

2, the axial fine setting and the braking of blade (3) and blade bearing (2) are the rotations by (4) 30 ° of cones of fine setting braking Xiao, promote blade bearing (2) and blade (3) and do axial trace adjustment.Its characteristics: 1. fine setting braking Xiao (4) is contained in cutter hub (1) the cutter slotted eye, and 30 ° of cones promoted blade bearing (2) and blade (3) is done axial trace adjustment when it rotated, and the utility model compact conformation is reasonable, good rigidly, reliable clamping; 2. blade (3) and blade bearing (2) are given by briquetting (6) and finely tuning after compressing, and clamp after reaching precision again, and be easy to operate, the trimming precision height; 3. originally axial micromatic setting, element precision requires general, and processing technology is good, and highly versatile is easy to tissue and produces in batches.

This product is tested and is tested by the specification requirement and the test method of standard GB 5342-85 indexable face milling cutter, and its result proves:

1, axially micromatic setting is through debugging, and blade (3) axial location precision can be controlled at 0.005 millimeter.As when selecting the blade of A class precision for use, during any one wiper edges of blade transposition, its end is jumped precision and can be controlled within 0.02 millimeter scope, has surpassed international specified accuracy requirement.

2, axially micromatic setting is through cutting test, and its end that cuts after preceding and the cutting is jumped precision, and the test result error does not have big variation, and this device good rigidly is described, clamping is solid and reliable.

For the reliability of further this device of examination design, carried out the heavy cut test of superstate standard, make cutting depth be increased to 12 millimeters by original 6 millimeters, other condition is constant, has a mind to be provided with under impact and the vibration situation and cuts.The knot test result: cutter still keeps cutting front end and jumps precision, therefore draws as drawing a conclusion:

1, the trace adjustment of this axial micromatic setting is that effectively its control accuracy is stable, and the end that has surpassed the GB regulation is jumped required precision.

2, through the heavy cut evidence, this is the micromatic setting good rigidly axially, and clamping is solid and reliable, does not have the axial float phenomenon.

Claims

1, a kind of axial fine adjustment type indexable face milling cutter, it comprises cutter hub (1), blade (3), double end (about revolve) screw (5), briquetting (6) is characterized in that:

Xiao (4) is braked in A, fine setting, is contained in cutter hub (1) the cutter groove to have in the hole of internal thread, when 30 ° of cones of its head are rotated, promotes blade bearing (2) internal taper hole one side and blade (3) and does the axial micro-axial float of adjusting and prevent along the cutter groove.

Cutter groove on B, the cutter hub (1) adopts square three-way groove, briquetting (6) and blade bearing (2) be 11 ° of inclined-planes each other, (3) 11 ° of major flanks of blade and cutter groove bottom are directly located, and respectively blade bearing (2) and blade (3) are clamped in the square groove by double end (about revolve) screw (5) and briquetting (6).