CN201728409U

CN201728409U - Lengthened face mill

Info

Publication number: CN201728409U
Application number: CN2010202731615U
Authority: CN
Inventors: 梁峰
Original assignee: Beijing Nankou Railway Transit Machinery Co Ltd
Current assignee: Beijing Zhongche Nankow Machinery Co Ltd
Priority date: 2010-07-23
Filing date: 2010-07-23
Publication date: 2011-02-02
Anticipated expiration: 2020-07-23

Abstract

The utility model provides a lengthened face mill, which comprises a steel cutter bar, a steel cutter head and a basic hilt. Two ends of the steel cutter bar are respectively provided with a long projection and a short projection, a mount is arranged at the root of the long projection, an internal tangent bevel is arranged on one side of the long projection from top to root, at least two threaded holes are arranged on one side of the basic hilt, the basic hilt is sleeved on the mount of the long projection, the inner wall of the basic hilt and the internal tangent bevel form a cavity, the two threaded holes are communicated to the cavity respectively, and two mounting screws are respectively screwed with the two threaded holes to be abutted upon the internal tangent bevel, so that the basic hilt is in bolting joint with the long projection of the steel cutter bar. Besides, the steel cutter head is sleeved on the short projection and in bolting joint with the short projection, and the steel cutter head is provided with a cutting blade. The integral length of the mill is lengthened while integral strength of the mill is guaranteed, thereby bringing convenience to process bottom faces of inner-bore cavities.

Description

The lengthening end mill(ing) cutter

Technical field

The utility model relates to Machining Technology, relates in particular to a kind of lengthening end mill(ing) cutter that is used for milling endoporus cavity bottom end face.

Background technology

In the prior art,, therefore be widely used because Digit Control Machine Tool has higher processing precision.

But in the standard cutter of Digit Control Machine Tool, also there is not a milling cutter that can carry out Milling Process to the endoporus cavity bottom end face (for example diameter is that 226mm, the degree of depth are the endoporus cavity bottom end face of 452mm) of some casing and cavity part.

The utility model content

The utility model provides a kind of lengthening end mill(ing) cutter, processes in order to internal pass chamber bottom end face.

The utility model provides a kind of lengthening end mill(ing) cutter, comprises steel knife bar, steel cutterhead and basic handle of a knife;

The two ends of described steel knife bar are respectively arranged with long projection and short projection, and the root of described long projection is provided with an erecting bed, and a side of this length projection is provided with an interior incisal bevel from the top to root; One side of described basic handle of a knife is provided with at least two screwed holes, and described basic handle of a knife is sheathed on the erecting bed of described long projection, and the inwall of described basic handle of a knife and described interior incisal bevel constitute a cavity, and two described screwed holes are communicated with described cavity respectively; Two construction bolts are threaded two described screwed holes respectively to prop up described interior incisal bevel, make the long projection of described basic handle of a knife and described steel knife bar realize bolt; Described steel cutterhead be sheathed on the described short projection and with described short projection bolt, and this steel cutterhead is provided with blade.

Described basic handle of a knife is a cone structure, and described cone structure comprises cone and base, and described base is arranged at the bottom of described cone; And described at least two screwed holes are arranged side by side on the sidewall of cone, and described base sheath is located on the erecting bed of long projection, and the inwall of described cone and described in incisal bevel constitute a cavity.

The cross section of described basic handle of a knife is the cross solid construction.Described blade is a diamond shaped insert.The point of a knife of described diamond shaped insert is 60～80 degree.The point of a knife of described diamond shaped insert is the circular arc of radius 0.3～1.2mm.The thickness of described diamond shaped insert is 4～6mm.The cross section of the described steel knife bar body of rod is the cross solid construction.The total length of described basic handle of a knife and described steel knife bar is 448mm.

Lengthening end mill(ing) cutter of the present utility model, be sheathed on by basic handle of a knife on the erecting bed of long projection, the inwall of basis handle of a knife constitutes a cavity with the interior incisal bevel of long projection one side, the long projection bolt of basis handle of a knife and steel knife bar, and the total length of basic handle of a knife and steel knife bar is the dependency structure of 448mm; In lengthening milling cutter entire length, guaranteed its integral intensity, realized the purpose that internal pass chamber bottom end face is convenient to process, and lengthening end mill(ing) cutter of the present utility model has in addition, and cost is low, the simple advantage of processing and manufacturing.

Description of drawings

Fig. 1 is the structural representation of the utility model lengthening end mill(ing) cutter;

Fig. 2 is the structural representation of the utility model steel cutterhead;

Fig. 3 is the structural representation of the utility model steel knife bar;

Fig. 4 is the schematic diagram of A-A direction among Fig. 3.

The specific embodiment

Fig. 1 is the structural representation of the utility model lengthening end mill(ing) cutter.Fig. 2 is the structural representation of the utility model steel cutterhead.Fig. 3 is the structural representation of the utility model steel knife bar.Fig. 4 is the schematic diagram of A-A direction among Fig. 3.To shown in Figure 4, the lengthening end mill(ing) cutter of present embodiment comprises steel knife bar 101, steel cutterhead 102 and basic handle of a knife 103 in conjunction with Fig. 1; Wherein,

Steel knife bar 101 can be processed as raw material by 45# steel or forging, for alleviating lengthening end mill(ing) cutter overall weight, it is cross solid construction (as shown in Figure 4) that its body of rod can be processed into cross section, and the two ends of this steel knife bar 101 are respectively arranged with long projection and short projection; The root of long projection is provided with an erecting bed 1011; And in a side of growing projection, be set to incisal bevel 1012 in from top to the root of growing projection, short prominence is provided with a built-in screwed hole;

Basis handle of a knife 103 is a cone structure, this cone structure comprises cone 1031 and base 1032, base 1032 is arranged at the bottom of cone 1031, and at least two screwed holes have been arranged side by side on the sidewall of base 1032, when base 1032 is sheathed on the erecting bed 1011 of long projection, the inwall of base 1032 and interior incisal bevel 1012 constitute a cavity, and two screwed holes are communicated with cavity respectively; Moreover the top of cone 1031 is provided with a blind rivet structure, so that the lengthening end mill(ing) cutter is articulated in the dependency structure of Digit Control Machine Tool;

Utilize this two screwed hole that the basic handle of a knife 103 and the long projection of steel knife bar 101 are clamped by the mode side-strengthened of two construction bolts with bolt, and two construction bolts prop up interior incisal bevel 1012 respectively; In the process of present embodiment lengthening end mill(ing) cutter work, can be by the mutual frictional force between two construction bolts and the interior incisal bevel 1012, prevent the disengaging of steel knife bar 101 and basic handle of a knife 103, realize the self-locking performance between steel knife bar 101 and the basic handle of a knife 103, and guaranteed the bulk strength of basic handle of a knife and steel knife bar; Moreover basic handle of a knife 103 is 448mm with the total length of steel knife bar 101;

Steel cutterhead 102 also can be processed as raw material by 45# steel or forging, the disk of these steel cutterhead 102 1 ends is provided with blade 104, it is the diamond shaped insert of 4～6mm that this blade 104 can be selected thickness, Hardmetal materials can weld in the point of a knife place, for example YG8 or YG6, its point of a knife is 60～80 degree, and point of a knife is the circular arc of radius 0.3～1.2mm; The other end of this steel cutterhead 102 is sheathed on the short projection of steel knife bar 101 and with this weak point projection and carries out bolt by bolt 105.

The lengthening end mill(ing) cutter of present embodiment, be sheathed on by basic handle of a knife on the erecting bed of long projection, the inwall of basis handle of a knife constitutes a cavity with the interior incisal bevel of long projection one side, the long projection bolt of basic handle of a knife and steel knife bar, and the total length of basic handle of a knife and steel knife bar is the dependency structure of 448mm; In lengthening milling cutter entire length, guaranteed its integral intensity, realized the purpose that internal pass chamber bottom end face is convenient to process, and lengthening end mill(ing) cutter of the present utility model has in addition, and cost is low, the simple advantage of processing and manufacturing.

It should be noted that at last: above embodiment only in order to the explanation the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.

Claims

1. a lengthening end mill(ing) cutter is characterized in that, comprises steel knife bar, steel cutterhead and basic handle of a knife;

The two ends of described steel knife bar are respectively arranged with long projection and short projection, and the root of described long projection is provided with an erecting bed, and a side of this length projection is provided with an interior incisal bevel from the top to root;

One side of described basic handle of a knife is provided with at least two screwed holes, and described basic handle of a knife is sheathed on the erecting bed of described long projection, and the inwall of described basic handle of a knife and described interior incisal bevel constitute a cavity, and two described screwed holes are communicated with described cavity respectively; Two construction bolts are threaded two described screwed holes respectively to prop up described interior incisal bevel, make the long projection of described basic handle of a knife and described steel knife bar realize bolt;

Described steel cutterhead be sheathed on the described short projection and with described short projection bolt, and this steel cutterhead is provided with blade.

2. lengthening end mill(ing) cutter according to claim 1 is characterized in that, described basic handle of a knife is a cone structure, and described cone structure comprises cone and base, and described base is arranged at the bottom of described cone; And described at least two screwed holes are arranged side by side on the sidewall of base, and described base sheath is located on the erecting bed of long projection, and the inwall of described base and described in incisal bevel constitute a cavity.

3. lengthening end mill(ing) cutter according to claim 1 is characterized in that, the cross section of described basic handle of a knife is the cross solid construction.

4. lengthening end mill(ing) cutter according to claim 1 is characterized in that, described blade is a diamond shaped insert.

5. lengthening end mill(ing) cutter according to claim 4 is characterized in that, the point of a knife of described diamond shaped insert is 60～80 degree.

6. lengthening end mill(ing) cutter according to claim 4 is characterized in that, the point of a knife of described diamond shaped insert is the circular arc of radius 0.3～1.2mm.

7. lengthening end mill(ing) cutter according to claim 4 is characterized in that, the thickness of described diamond shaped insert is 4～6mm.

8. lengthening end mill(ing) cutter according to claim 1 is characterized in that, the cross section of the described steel knife bar body of rod is the cross solid construction.

9. lengthening end mill(ing) cutter according to claim 1 is characterized in that, the total length of described basic handle of a knife and described steel knife bar is 448mm.