CN201979142U

CN201979142U - Cutter bar-cutter firm combination device

Info

Publication number: CN201979142U
Application number: CN2010206944216U
Authority: CN
Inventors: 陈金堆
Original assignee: ZHANGZHOU SHENGYUAN MACHINERY INDUSTRIAL Co Ltd
Current assignee: ZHANGZHOU SHENGYUAN MACHINERY INDUSTRIAL Co Ltd
Priority date: 2010-12-30
Filing date: 2010-12-30
Publication date: 2011-09-21
Anticipated expiration: 2020-12-30

Abstract

The utility model discloses a cutter bar-cutter firm combination device comprising a cutter bar body and a cutter, wherein the cutter is inserted and fixed in the through hole of the cutter bar body; a non-circular fixing section is formed in the through hole of the cutter bar body; a plurality of anti-slip concave parts are formed in the inner peripheral wall of the fixed section; and a plurality of anti-slip corners pressing against the anti-slip concave parts are formed on the outer peripheral surface of the inserting and fixing end of the cutter. Therefore, the anti-slip concave parts and the anti-slip corners can be used to prevent the cutter and the cutter bar from slipping and idling and enable the combination of the cutter and the cutter bar body to be firmer and the practical applicability to be extremely good.

Description

The firm coupling apparatus of knife bar cutter

Technical field

The utility model relates to a kind of member of cutting machine tool, the firm coupling apparatus of especially a kind of knife bar cutter.

Background technology

The knife bar cutter coupling apparatus of present prior art, as shown in Figure 5, be provided with knife bar body 70 and cutter 80, knife bar body 70 is equipped with perforation 71, cutter 80 closely plugs the perforation 71 of being fixed in knife bar body 70 with the combination of expanding with heat and contract with cold, and finishes knife bar body 70 whereby and fixes with combining of cutter 80 and carry out follow-up machining operation.

Yet, cutter 80 and 71 the cross sectional shape of boring a hole be for circular, even cutter 80 has closely combined with knife bar body 80 in the mode of expanding with heat and contract with cold, and the situation that cutter 80 and knife bar body 70 still may produce relative rotation, cause cutter 80 slippings, need to do further to improve.

The utility model content

At the deficiencies in the prior art part, the utility model provides a kind of knife bar cutter firm coupling apparatus, and it can avoid cutter and knife bar body skid, and it is more firm that cutter is combined with the knife bar body, and practicality is splendid.

For achieving the above object, technical solutions of the utility model are:

The firm coupling apparatus of a kind of knife bar cutter, it comprises: a knife bar body, it is a microscler cylindrical shell and comprises a main shaft fixed part, a flange portion that combines with the outer peripheral face of this main shaft fixed part and a heating part that combines with the end face of this main shaft fixed part, this knife bar body is provided with a perforation that runs through this main shaft fixed part and this heating part in shaft core position, this perforation is provided with a canned paragraph that is positioned at this heating part, and the cross sectional shape of this canned paragraph is non-circular and forms a plurality of on-slip recesses in the internal perisporium of this canned paragraph; And a cutter, it closely plugs to be fixed in this perforation and to form a blade end and respectively in two ends inserts fixed end, and this cutter is provided with a middle section position between this blade end and this slotting fixed end; Outer peripheral face in this slotting fixed end is formed with a plurality of on-slip corner, and this a plurality of on-slip corner is resisted against this a plurality of on-slip recesses; The external diameter of the middle section position of this cutter is more than or equal to the maximum outside diameter of this slotting fixed end.

The cross sectional shape of described slotting fixed end and this a plurality of on-slip corner corresponding with the cross sectional shape of this canned paragraph is resisted against this a plurality of on-slip recesses respectively.

Four on-slip corners of the rectangular and corresponding formation of the cross sectional shape of described slotting fixed end.

Three on-slip corners of the triangular in shape and corresponding formation of the cross sectional shape of described slotting fixed end.

The usefulness of technique scheme is:

For the knife bar cutter coupling apparatus that solves prior art be a circle relevant for the cross sectional shape of cutter and perforation, can produce relative rotation and cause the deficiency and the restriction of cutter slipping, the firm coupling apparatus of knife bar cutter provided by the utility model, concrete benefit that can obtain and effect are promoted: it forms non-circular canned paragraph in the perforation of knife bar body, and form a plurality of on-slip recesses in the internal perisporium of canned paragraph, and the outer peripheral face of the slotting fixed end of cutter form a plurality of and on-slip recess against the on-slip corner; Whereby, utilize the combination in on-slip recess and on-slip corner can avoid cutter and knife bar body to produce relative rotation, cutter can firmly be combined with the knife bar body, very practical.

Description of drawings

Fig. 1 is the three-dimensional appearance schematic diagram of the utility model first preferred embodiment;

Fig. 2 is the perspective exploded view of the utility model first preferred embodiment;

Fig. 3 is the part generalized section of the utility model first preferred embodiment;

Fig. 4 is the generalized section of the utility model second preferred embodiment;

Fig. 5 is the part generalized section of prior art knife bar cutter coupling apparatus.

The specific embodiment

Being can detail knowledge technical characterictic of the present utility model and practical effect, and can implement according to the content of specification, now further describes the utility model in detail with as shown in the figure embodiment.

First preferred embodiment of the firm coupling apparatus of a kind of knife bar cutter provided by the utility model as shown in Figures 1 to 3, comprising: assemblies such as a knife bar body 10 and a cutter 20, wherein:

As shown in Figures 1 to 3, this knife bar body 10 is a microscler cylindrical shell and comprises that one is main shaft fixed part 11, a flange portion 12 that combines with the outer peripheral face of this main shaft fixed part 11 and a heating part 13 that combines with the end face of this main shaft fixed part 11 of semi-conical; This flange portion 12 is in the form of annular discs; This knife bar body 10 is provided with a perforation 14 that runs through this main shaft fixed part 11 and this heating part 13 in shaft core position, this perforation 14 is provided with a canned paragraph 141 that is positioned at this heating part 13, and the cross sectional shape of this canned paragraph 141 is non-circular and forms a plurality of on-slip recesses 1411 in the internal perisporium of this canned paragraph 141; This knife bar body 10 all the other shape and structures except canned paragraph 141 all belong to prior art, and are not emphasis of the present utility model, are not described in detail at this.

As shown in Figures 1 to 3, this cutter 20 is shaft-like and closely plugs with the combination of expanding with heat and contract with cold and is fixed in this perforation 14 and forms a blade end 21 in two ends respectively and one insert fixed end 22, this cutter 20 be provided with one between this blade end 21 and this slotting fixed end 22 middle section position; Outer peripheral face in this slotting fixed end 22 is formed with a plurality of on-slip corner 221, and this a plurality of on-slip corner 221 is resisted against this a plurality of on-slip recesses 1411; The external diameter of the middle section position of this cutter 20 is more than or equal to the maximum outside diameter of this slotting fixed end 22, whereby, the slotting fixed end 22 of cutter and middle section position can insert perforation 14 smoothly, if insert the middle section position of the maximum outside diameter of fixed end 22 greater than cutter 20, insert fixed end 22 and can't insert perforation 14 smoothly;

The cross sectional shape of described slotting fixed end 22 and this a plurality of on-slip corner 221 corresponding with the cross sectional shape of this canned paragraph 141 is resisted against this a plurality of on-slip recesses 1411 respectively; In the utility model, the cross sectional shape of inserting fixed end 22 is not necessarily identical with the cross sectional shape of canned paragraph 141, the cross sectional shape of for example inserting fixed end is a triangle and the cross sectional shape of canned paragraph is a hexagon, three on-slip corners of therefore inserting fixed end are resisted against wherein three in six on-slip recesses of canned paragraph, can reach cutter not with knife bar body purpose in relative rotation, the utility model is not done specific restriction for the cross sectional shape of inserting fixed end and canned paragraph is whether identical.

As shown in Figure 2, four on-slip corners 221 of the rectangular and corresponding formation of the cross sectional shape of this slotting fixed end 22.

As shown in Figure 4, in second preferred embodiment of the present utility model, the triangular in shape and corresponding formation of the cross sectional shape of this slotting fixed end 22A three on-slip corners 221A.

Slotting fixed end 22 of the present utility model, 22A and canned paragraph 141 if by on-slip corner 221,221A and on-slip recess 1411 against can implementing, the utility model is not done specific restriction for the shape of inserting fixed

end

22,22A, on-slip corner 221, the quantity of 221A, the quantity of on-slip recess 1411.

Above embodiment only is explanation technological thought of the present utility model; can not limit protection domain of the present utility model with this; every according to the technological thought that the utility model proposes, any change of being done on the technical scheme basis all falls within the utility model protection domain.

Claims

1. firm coupling apparatus of knife bar cutter, be characterised in that: it comprises:

One knife bar body, it is a microscler cylindrical shell and comprises a main shaft fixed part, a flange portion that combines with the outer peripheral face of this main shaft fixed part and a heating part that combines with the end face of this main shaft fixed part, this knife bar body is provided with a perforation that runs through this main shaft fixed part and this heating part in shaft core position, this perforation is provided with a canned paragraph that is positioned at this heating part, and the cross sectional shape of this canned paragraph is non-circular and forms a plurality of on-slip recesses in the internal perisporium of this canned paragraph; And

One cutter, it closely plugs and is fixed in this perforation and forms a blade end in two ends respectively and one insert fixed end, and this cutter is provided with a middle section position between this blade end and this slotting fixed end; Outer peripheral face in this slotting fixed end is formed with a plurality of on-slip corner, and this a plurality of on-slip corner is resisted against this a plurality of on-slip recesses; The external diameter of the middle section position of this cutter is more than or equal to the maximum outside diameter of this slotting fixed end.

2. the firm coupling apparatus of knife bar cutter as claimed in claim 1 is characterized in that: the cross sectional shape of described slotting fixed end and this a plurality of on-slip corner corresponding with the cross sectional shape of this canned paragraph is resisted against this a plurality of on-slip recesses respectively.

3. the firm coupling apparatus of knife bar cutter as claimed in claim 1 or 2 is characterized in that: four on-slip corners of the rectangular and corresponding formation of the cross sectional shape of described slotting fixed end.

4. the firm coupling apparatus of knife bar cutter as claimed in claim 1 or 2 is characterized in that: three on-slip corners of the triangular in shape and corresponding formation of the cross sectional shape of described slotting fixed end.