CN2166901Y

CN2166901Y - Arrangement for securing milling-cutter for working large screwed column

Info

Publication number: CN2166901Y
Application number: CN 93222263
Authority: CN
Inventors: 徐世群
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-08-28
Filing date: 1993-08-28
Publication date: 1994-06-01
Anticipated expiration: 2003-08-28

Abstract

The utility model relates to a mechanical clamping device for a special metal surface milling processing cutter, particularly a mechanical clamping device for a spiral column milling cutter. The utility model has the main structure that a shim 1 which is directly matched with the contact surface of a spiral groove is arranged in the spiral groove on a cutter body 2, and the shim 1 is provided with a plane blade 3 which is fixed by a pressing block 4 and a screw 5. The utility model has the advantages of reliable operating performance, solution to the traditional blade-welding technique, low cost, and simple manufacture technique. The utility model also has the advantages and effects the mechanical clamping cutter have.

Description

Arrangement for securing milling-cutter for working large screwed column

The utility model relates to the machine clamp device of metal surface hobbing processing dedicated tool, refers in particular to the machine clamp device of large-scale spiral cylinder hob.

Background technology of the present utility model is that original large-scale metal surface hob adopts Type of Welding more, in the helicla flute on the metal cutter hub, the blade that number of welds is a lot of is like this after the welding, blade capabilities reduces, be difficult to reach designing requirement, blade section can't be studied for a second time courses one has flunked after damaging, can only disposablely use, waste is big, very uneconomical large-scale cutter as φ 200 * 1230, and once waste reaches more than ten thousand yuan.Someone imagines employing machine folder form; But need through the screw blade behind the sharpening, and this screw blade generally is difficult to make and grinding, straight the present both at home and abroad still none family adopt, thereby the large-scale spiral hob machine clamp device of large-scale metal surface processing is subjected to great restriction.

The purpose of this utility model is the weak point that changes in the above-mentioned technology, and a kind of machine clamp device of spiral cylinder hob is provided, and reaches to have simple, easy capable, reliable, general function, and satisfies the purpose of large-scale metal surface hobbing process requirements.

Technical solution of the present utility model is: on the large-scale hobbing cutter hub 2, the helicla flute that insert blade 3 is arranged, it is characterized in that: the edge bearing 1 of assembling directly cooperates with the helicla flute contact-making surface in this helicla flute, and the plane ordinary blade of placing on the edge bearing 13 is fixedly clamped by briquetting 4 and pinching screw 5.

Technical solution of the present utility model also comprises: the inclined-plane contacts cooperation with linear with at the bottom of cutter hub 2 helicla flutes below the briquetting 4.

Be assemblied in the cutter hub 2 pinching screw 5 with the extruding of the conical surface and the face of cylinder fixedly briquetting 4 in cutter hub 2 helicla flutes.

Description of drawings of the present utility model is as follows:

Fig. 1 is a front view.

Fig. 2 is an A-A cutaway view among Fig. 1.

This pass is described as follows with novel embodiment:

Referring to Fig. 1 and Fig. 2, in the column type hobbing cutter hub 2 helicla flute that mills is arranged, helicla flute and edge bearing 1 cooperate with helicoid, blade 3 on the edge bearing 1 cooperates with plane contact, so just can make common planar blade 3(such as D246 type carbide chip) through the transfer of edge bearing 1, assembly machine is clipped on the spiral cylinder hobbing cutter hub 2, and approximate blade 3 can being regarded as is assemblied on the helix.It is fixed that fixing pressured 4 side plane of blade 3 squeezes clamping, and the briquetting 4 opposite side conical surfaces are assemblied in the cutter hub 2 by pinching screw 5, and jam-packed is fixed, and screw 5 faces of cylinder bear against on cutter hub 2, with at the bottom of cutter hub 2 helicla flutes α angle arranged below the briquetting 4, and the α angle is 3-5 °.Among Fig. 2 on the blade 3 the point of a knife double dot dash line be blade 3 circular motion tracks.Work in-process when needing sharpening blade and changing blade, unclamps screw 5 and gets final product.

Advantage of the present utility model and effect are: changed the process of former welding blade, adopted the at any time machine folder form of changeable blade. Solve the cost height that former hob exists, made the problems such as complexity. Every international D2 type plane blade can both be realized machine clamp screw cutter machining large metal flat, and blade selection broad covered area has all advantages of mechanical clamped cutting tool, simple in structure, unique, innovation. Reasonable through the simulated test certification structure, reliable working performance, accessible cutting parameter is: swivel speed n=350 turns to/min

Swivel walking speed V=198m/min

Feed per tooth fz=0.36mm

Cutting depth ap=0.3mm

Every meter steel band cost of charp tool total cost≤1.4 yuan/m.

Claims

1, the machine clamp device of large-scale spiral cylinder hob, comprise on the large-scale hobbing cutter hub (2), the helicla flute that insert blade (3) are arranged, it is characterized in that: the edge bearing (1) of assembling directly cooperates with the helicla flute contact-making surface in this helicla flute, and edge bearing (1) is gone up the plane ordinary blade of placing (3) and is fixedly clamped by briquetting (4) and pinching screw (5).

2, the machine clamp device of large-scale spiral cylinder hob according to claim 1 is characterized in that the following inclined-plane of briquetting (4) contacts cooperation with linear with at the bottom of cutter hub (2) helicla flute.

3, the machine clamp device of large-scale spiral cylinder hob according to claim 1, it is characterized in that being assemblied in the cutter hub (2) pinching screw (5) with the extruding of the conical surface and the face of cylinder fixedly briquetting (4) in cutter hub (2) helicla flute.