CN209935962U

CN209935962U - Hexagonal blade square shoulder milling cutter

Info

Publication number: CN209935962U
Application number: CN201920609057.XU
Authority: CN
Inventors: 王笃军; 孙波
Original assignee: Jiangsu Maohouhui Mechanical Equipment Co Ltd
Current assignee: Jiangsu Maohouhui Mechanical Equipment Co Ltd
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2020-01-14
Anticipated expiration: 2029-04-30

Abstract

The utility model relates to a hexagonal blade square shoulder milling cutter, comprising a cutter body, the cutter body top is equipped with first round platform groove, be equipped with the chip groove that a plurality of even intervals set up on the cutter body outward flange, the chip groove is including consecutive first cell body, second cell body and third cell body, be equipped with the hexagonal blade on the first cell body, the main declination an of the three alternate knife tip of hexagonal blade is 90, the anterior angle b of hexagonal blade is 12 ~ 14, be equipped with the guiding gutter on the rake face of hexagonal blade, second cell body and third cell body inner wall all are the V-arrangement structure, the second cell body is obtuse angle slope setting with the adjacent inner wall of third cell body, be equipped with the screw that runs through the first cell body of adjacent chip groove on the third cell body, the hexagonal blade and the cutter body assembly that adopt six smear metal sword, the hexagonal blade has 90 main declination and big design, anterior angle and anti tipping ability are better under the big overhang, but tapering degree of taper mills, multiple processing occasions such as grooving and slotting, realize the high efficiency processing of maximum depth of 8mm, the economic nature is better.

Description

Hexagonal blade square shoulder milling cutter

Technical Field

The utility model relates to a cutter, especially a hexagonal blade square shoulder milling cutter.

Background

The square shoulder milling cutter in the prior art generally adopts a pre-quenched cutter body and a square blade with four cutting edges, and is formed by positioning a central screw, because the blade is thin and the processing front angle of the blade is small, the blade is easy to appear in a processing occasion with long overhang or in a milling process with large cutting depth, the chip breaking performance is poor, the blade breaking phenomenon is caused by vibration of the cutter, meanwhile, four 90-degree cutter points are generally used in a plane milling or plunge milling occasion, the cutter changing processing is needed when a taper shoulder is milled, the processing efficiency and the service life of the cutter are reduced, and the economy is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at prior art's defect, provide a hexagonal blade square shoulder milling cutter, adopt the hexagonal blade and the cutter body assembly of six smear metal sword, the hexagonal blade has 90 main declination and big anterior angle design, and the chip breaking is better with anti tipping ability under the big overhang, can deal with multiple processing occasions such as tapering circular bead mills, plane mill, fluting and slotting, realizes the high efficiency processing of the biggest depth of cut 8mm, and the economic nature is better.

The utility model discloses a realize through following technical scheme:

a hexagonal blade square shoulder milling cutter comprises a cutter body, wherein a first circular truncated cone groove is formed in the top of the cutter body, a plurality of chip grooves which are uniformly arranged at intervals are formed in the outer edge of the cutter body, the end portions of the chip grooves are communicated with the first circular truncated cone groove and comprise a first groove body, a second groove body and a third groove body which are sequentially connected, the first groove body is located at the top of the side of the second groove body, the inner side wall of the first groove body is obliquely arranged with the inner side wall of the second groove body, and the bottom of the first groove body is of a V-shaped structure and is provided with a hexagonal blade;

the top and the outer wall of the hexagonal blade protrude out of the cutter body, the cutting edge sides of the hexagonal blade are equal, the main deflection angle a of three alternate knifepoints of the hexagonal blade is 90 degrees, the front angle b of the hexagonal blade is 12 ~ 14 degrees, a flow guide groove is arranged on the front cutter face of the hexagonal blade, the bottom of the flow guide groove is hexagonal, the side wall and the bottom of the flow guide groove are obliquely arranged, the inner walls of the second groove body and the third groove body are both V-shaped structures, the adjacent inner walls of the second groove body and the third groove body are obliquely arranged at an obtuse angle, a screw hole penetrating through the first groove body of the adjacent chip discharge groove is formed in the third groove body, and a bolt with the bottom matched and connected with the screw hole;

the novel cutter is characterized in that an annular groove is formed in the outer wall of the cutter body, the bottom of the annular groove is of an arc-shaped structure, a through hole is formed in the cutter body, limiting grooves are formed in the cutter body on two sides of the bottom of the through hole, a second circular platform groove is formed in the first circular platform groove, a groove is formed between the second circular platform groove and the through hole, and a plurality of counter bores penetrating through the cutter body are formed in the second circular platform groove and the groove.

The utility model has the advantages that:

(1) the hexagonal milling cutter is characterized in that the end part of a bolt penetrates through a hexagonal blade and is connected with a screw hole on a third groove body of an adjacent chip removal groove, the hexagonal blade is assembled on a cutter body, the cutter body is matched with the cutting edge shape of the hexagonal blade through a first circular table groove, the hexagonal blade is provided with six cutting edges and three cutter points with main deflection angles of 90 degrees, the hexagonal blade can be used in an exchangeable mode and is more economical than a four-edge blade, the cutting edge of the hexagonal blade on one side of the first circular table groove can realize taper circular bead milling, the universality is better, (2) a 12 ~ 14-degree large front angle structure is adopted, the pressure of the cutter is reduced in the processes of slotting and plunge milling with large overhang and large cutting depth, the anti-tipping capability is better, and (3) the chip removal groove is provided with the hexagonal blade in a first limiting mode through a V-shaped bottom, and a second groove body and a third groove body which are connected in an obtuse angle have larger chip breaking and chip containing space, the chip collection is guaranteed through a diversion groove, the chip removal performance is increased, the chip removal performance is avoided, the chip accumulation and the service life of the cutter is prolonged, and the economic efficiency.

Drawings

Fig. 1 is a top perspective view of the present invention.

Fig. 2 is a bottom perspective view of the present invention.

Fig. 3 is a front view of the present invention.

Fig. 4 is a top view of the present invention.

(in the figure, a cutter body 1, a first circular platform groove 2, a chip groove 3, a first groove body 31, a second groove body 32, a third groove body 33, a hexagonal blade 4, a diversion trench 5, a tangent plane 6, a screw hole 7, a bolt 8, an arc angle 9, a ring groove 10, a through hole 11, a limiting groove 12, a groove 13, a counter bore 14 and a second circular platform groove 15).

Detailed Description

The following describes the present invention with reference to the accompanying drawings.

A hexagonal blade square shoulder milling cutter comprises a cutter body 1, wherein a first circular truncated cone groove 2 is formed in the top of the cutter body 1, a plurality of chip grooves 3 which are uniformly arranged at intervals are formed in the outer edge of the cutter body 1, the end portions of the chip grooves 3 are communicated with the first circular truncated cone groove 2 and comprise a first groove body 31, a second groove body 32 and a third groove body 33 which are sequentially connected, the first groove body 31 is located at the top of the side of the second groove body 32, the inner side wall of the first groove body 31 and the inner side wall of the second groove body 32 are obliquely arranged, and the bottom of the first groove body 31 is of a V-shaped structure and is provided with a hexagonal blade 4;

hexagonal blade 4 top and outer wall protrusion in cutter body 1, the smear metal sword side length of hexagonal blade 4 is equal, the main declination an of the three alternate knife tip of hexagonal blade 4 is 90, and the anterior angle b of hexagonal blade 4 is 12 ~ 14, be equipped with guiding gutter 5 on the rake face of hexagonal blade 4, guiding gutter 5 bottom is the hexagon, and lateral wall and bottom slope set up, adopts lateral wall slope, bottom to be the guiding gutter 5 of hexagon structure, conveniently makes the smear metal of smear metal sword assemble through guiding gutter 5, leads to chip groove 3 along with the cutter rotation, avoids the smear metal to splash and causes cutting edge wearing and tearing, improves the cutter life-span.

Second cell body 32 and third cell body 33 inner wall all are the V-arrangement structure, and second cell body 32 is the obtuse angle slope setting with the adjacent inner wall of third cell body 33, second cell body 32 one side is equipped with tangent plane 6, tangent plane 6 is located first cell body 31 bottom, just inclines in second cell body 32 lateral wall. By adopting the tangent plane 6 structure, the phenomenon of accumulated chips caused by the fact that the depth of the first groove body 31 is larger than the thickness of the blade and protrudes out of the front blade of the hexagonal blade 4 is avoided, and smooth chip removal is ensured.

Be equipped with the screw 7 that runs through the first cell body 31 of adjacent chip groove 3 on the third cell body 33, be equipped with the bolt 8 that bottom and screw 7 cooperation are connected on the hexagonal blade 4, all be equipped with arc angle 9 between first cell body 31 bottom and the cutter body 1, between the inner wall of second cell body 32, between the inner wall of third cell body 33. And the arc angle 9 is adopted for transition, so that the phenomenon of chip accumulation is avoided, and smooth chip removal is ensured.

Be equipped with annular 10 on the cutter body 1 outer wall, annular 10 bottom is the arc structure, cutter body 1 is inside to be equipped with through-hole 11, is equipped with spacing groove 12 on the cutter body 1 of through-hole 11 bottom both sides, 2 inside second platform grooves 15 that are equipped with in first platform groove, be equipped with recess 13 between second platform groove 15 and the through-hole 11, be equipped with a plurality of counter bores 14 that run through cutter body 1 on second platform groove 15 and the recess 13. The cutter body 1 is located with a machine tool spindle through a through hole 11 and a limiting groove 12 through a ring groove 10 serving as a supporting neck, the cutter body is mounted through fixing of the end portion of the machine tool spindle through a counter bore 14 and a bolt 8, the first circular table groove 2 is adapted to a hexagonal blade 4-shaped structure, the second circular table groove 15 is adopted for connection yielding of the machine tool spindle, and stable plane milling performance is guaranteed.

The end part of a bolt 8 penetrates through the hexagonal blade 4 and is connected with a screw hole 7 on a third groove body 33 of an adjacent chip groove 3, the hexagonal blade 4 is assembled on the cutter body 1, the cutter body 1 is matched with the cutting edge shape of the hexagonal blade 4 through the first circular platform groove 2, the hexagonal blade 4 is provided with six cutting edges and three tool tips with main deflection angles of 90 degrees, and the hexagonal blade can be used in an interchangeable way and is more economical than a four-edge blade;

the cutter body 1 is installed on a machine tool spindle through the counter bore 14 and the through hole 11, the side top cutting edge of the hexagonal blade 4 on one side of the first circular table groove 2 is utilized for milling during milling of a taper circular bead, the top cutting edge of the hexagonal blade 4 is utilized for milling during plane milling, the top cutting edge of the hexagonal blade 4 is utilized for milling during slotting and plunge milling, the milled cuttings are gathered through the diversion trench 5 and fall into the chip removal groove 3 of the second groove body 32 and the third groove body 33 along with rotation of the cutter to be discharged, the bottom of the first groove body 31 is convenient to be installed by being attached to the hexagonal blade 4, the second groove body 32 and the third groove body 33 have larger chip breaking and containing spaces, the phenomenon of chip accumulation can be avoided, the service life of the cutter is ensured, under the machining working condition of large cutting depth and large overhang, the large front angle structure of 12 ~ 14 degrees, the pressure of the cutter is reduced, the vibration of the cutter can be reduced, the anti-edge breaking capacity of the cutter is better.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A hexagonal blade square shoulder milling cutter comprises a cutter body, wherein a first circular truncated cone groove is formed in the top of the cutter body, a plurality of chip grooves which are uniformly arranged at intervals are formed in the outer edge of the cutter body, the end portions of the chip grooves are communicated with the first circular truncated cone groove and comprise a first groove body, a second groove body and a third groove body which are sequentially connected, the first groove body is located at the top of the side of the second groove body, the inner side wall of the first groove body is obliquely arranged with the inner side wall of the second groove body, and the bottom of the first groove body is of a V-shaped structure and is provided with a hexagonal blade;

hexagonal blade top and outer wall protrusion in cutter body, the smear metal sword of hexagonal blade is equal in side length, the main declination an of the three alternate knife tip of hexagonal blade is 90 °, and the anterior angle b of hexagonal blade is 12 ~ 14, second cell body and the internal wall of third cell body all are the V-arrangement structure, and the adjacent inner wall of second cell body and third cell body is the obtuse angle slope setting, be equipped with the screw that runs through the first cell body of adjacent chip groove on the third cell body, be equipped with the bolt that bottom and screw cooperation are connected on the hexagonal blade.

2. A hexagonal cutter head square shoulder milling cutter as claimed in claim 1, wherein the outer wall of the cutter body is provided with a circular groove, the bottom of the circular groove is arc-shaped, the cutter body is provided with a through hole therein, the cutter body on both sides of the bottom of the through hole is provided with a limiting groove, the first circular groove is provided with a second circular groove therein, a groove is provided between the second circular groove and the through hole, and the second circular groove and the groove are provided with a plurality of counter bores penetrating through the cutter body.

3. A hexagonal insert square shoulder milling cutter according to claim 1, wherein the rake face of the hexagonal insert is provided with a guide groove, the bottom of the guide groove is hexagonal, and the side wall and the bottom are inclined.

4. A hex-head square shoulder milling cutter as claimed in claim 1, wherein a cut surface is provided on one side of the second slot, the cut surface being located at the bottom of the first slot and being inclined to the side wall of the second slot.

5. The milling cutter according to any one of claims 1 to 1 ~ 4, wherein arc angles are provided between the bottom of the first slot and the cutter body, between the inner walls of the second slot, and between the inner walls of the third slot.