CN216065719U - End-concave cambered surface milling cutter - Google Patents

Abstract

The utility model discloses an end-concave cambered surface milling cutter which comprises a cutter handle and a cutter head, wherein an end blade comprises a first end blade, a second end blade, a chisel blade and an arc blade, the chisel blade is positioned at the front end of a peripheral blade, one end of the arc blade is connected with the chisel blade, the second end blade is connected with the other end of the arc blade, the first end blade is positioned at the front end of the second end blade, the arc blade is inwards concave, the included angle R1 between the second end blade and the axis of the cutter head is 2 degrees, the inclination angle R2 of the chisel blade relative to the horizontal plane is 2 degrees, the radius D1 of the arc blade is 0.3mm, and the diameter D2 of the end blade is 1.02. The milling device is reasonable in structure and safe to use, can form the groove body with higher size, shape, precision and roughness, improves the excellent rate of milling forming, effectively prevents the cutter from collapsing in the machining process, ensures the service life of the cutter, and effectively improves the production efficiency and the production quality.

Description

End-concave cambered surface milling cutter

Technical Field

The utility model relates to the field of milling cutters, in particular to an end-concave cambered surface milling cutter.

Background

A milling cutter is a rotary cutter for milling having one or more cutter teeth which, in operation, each cutter tooth cuts off the remainder of a workpiece intermittently in sequence. Milling cutters are mainly used for machining planes, steps, grooves, formed surfaces, cutting off workpieces and the like on milling machines, and in order to ensure that a sufficiently high average chip thickness/feed per tooth is used, the number of milling cutter teeth suitable for the process must be correctly determined. Traditional shaping milling cutter machining efficiency is low, can't guarantee production quality, and the cutter appears collapsing the sword easily in the use, influences its life.

SUMMERY OF THE UTILITY MODEL

The utility model provides a milling cutter with an end concave cambered surface, aiming at overcoming the defects in the prior art and solving the problems in the prior art.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: an end-concave cambered surface milling cutter comprises a cutter handle and a cutter head, wherein the cutter handle is axially and integrally connected with the cutter head, the cutter head comprises an end blade and a peripheral blade, the peripheral blade is spirally arranged on the side part of the cutter head and is arranged in a central symmetry way, the end edge is positioned at the front end of the peripheral edge, the helix angle R10 of the peripheral edge is 65 degrees, the end edge comprises a first end edge, a second end edge, a chisel edge and a curved edge, the chisel edge is positioned at the front end of the peripheral edge, one end of the arc edge is connected with the chisel edge, the second end edge is connected with the other end of the arc edge, the first end edge and the front end of the second end edge are arranged, the arc edge is inwards concave, the included angle R1 between the second end edge and the axis of the cutter head is 2 degrees, the angle of inclination R2 of the chisel edge relative to the horizontal plane is 2 degrees, the radius D1 of the arc edge is 0.3mm, and the diameter D2 of the end edge is 1.02.

As a further elaboration of the above technical solution:

in the above technical scheme, the end blade further comprises end teeth and forming teeth, and the end teeth and the forming teeth are sequentially arranged.

In the technical scheme, the end tooth comprises a first end tooth surface and a second end tooth surface which are sequentially arranged, a tangent is made on the periphery of the end blade, an included angle R3 between the first end tooth surface and the tangent is 8 degrees, an included angle R4 between the second end tooth surface and the tangent is 18 degrees, and the length D3 of the first end tooth surface is 0.12 m.

In the technical scheme, the forming teeth comprise a first forming surface, a second forming surface and a third forming surface which are sequentially arranged, the axial angle of the first forming surface is 3 degrees, the radial angle of the first forming surface is 12 degrees, the axial angle of the second forming surface is 6 degrees, the radial angle of the second forming surface is 25 degrees, and the length of the first forming surface is 0.06 mm.

In the above technical solution, the shearing angle of the peripheral edge is 3 °, and the length D4 between the end edge and the peripheral edge is 2.3 mm.

In the above technical solution, the peripheral edge includes a first peripheral edge surface and a second peripheral edge surface, a tangent line is made on the periphery of the chisel edge, an included angle R5 between the first peripheral edge surface and the tangent line is 12 °, an included angle R6 between the second peripheral edge surface and the tangent line is 35 °, and the length D6 of the first peripheral edge surface is 0.2 mm.

In the technical scheme, a cone frustum is arranged between the cutter head and the cutter handle, and the inclination angle R7 of the cone frustum is 30 degrees.

In the technical scheme, the length D5 of the tool bit is 5mm, the lengths D7 of the tool bit, the cone frustum and the tool shank are 10mm, the cross section width of the tool shank is 4mm, and the tail of the tool shank is provided with a chamfer R9.

In the above technical solution, the diameter of the outermost periphery of the chisel edge is 2.5mm, and the inclination angle R8 of the end tooth with respect to the horizontal plane is 2 °.

Compared with the prior art, the utility model has the beneficial effects that: the milling cutter is reasonable in structure and safe to use, the chisel edge is positioned at the front end of the peripheral edge, one end of the arc edge is connected with the chisel edge, the second end edge is connected with the other end of the arc edge, the first end edge is positioned at the front end of the second end edge, the arc edge is sunken inwards, an included angle R1 between the second end edge and the axis of the cutter head is 2 degrees, an inclination angle R2 of the chisel edge relative to the horizontal plane is 2 degrees, the radius D1 of the arc edge is 0.3mm, and the diameter D2 of the end edge is 1.02.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a schematic view of a partial structure of the present invention;

FIG. 4 is another partial schematic of the present invention;

FIG. 5 is a schematic view of the end tooth of the present invention;

FIG. 6 is a schematic view of the construction of a forming tooth of the present invention;

fig. 7 is a schematic view of the structure of the peripheral edge of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiments described by referring to the drawings are exemplary and intended to be used for explaining the present application and are not to be construed as limiting the present application. In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting. Furthermore, the terms "first", "second" and "first" 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" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; 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 application can be understood by those of ordinary skill in the art as appropriate. In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

As shown in fig. 1-7, the end-concave cambered surface milling cutter comprises a cutter handle 1 and a cutter head 2, wherein the cutter handle 1 is axially and integrally connected with the cutter head 2. The handle of a knife mainly used clamping, the tool bit is used for shaping the hole groove. The milling cutter is connected to equipment such as a milling machine through the cutter handle, and the rotary driving force and the linear driving force of the equipment such as the milling machine are transmitted to the cutter head through the cutter handle, so that the cutter head forms a hole groove in the rotary and linear feeding processes. The cutting head 2 includes an end blade 21 and a peripheral blade 22, the peripheral blade 22 is spirally disposed on a side portion of the cutting head 2 and is arranged in a central symmetry manner, the end blade 21 is located at a front end of the peripheral blade 22, a helix angle R10 of the peripheral blade 22 is 65 °, the end blade 21 includes a first end blade 23, a second end blade 24, a chisel blade 25 and an arc blade 26, the chisel blade 25 is located at a front end of the peripheral blade 22, one end of the arc blade 26 is connected to the chisel blade 25, the second end blade 23 is connected to the other end of the arc blade 26, the first end blade 23 is located at a front end of the second end blade 24, the arc blade 26 is recessed inward, an angle R1 between the second end blade 24 and an axis of the cutting head 2 is 2 °, an inclination angle R2 of the chisel blade 25 with respect to a horizontal plane is 2 °, a radius D1 of the arc blade 26 is 0.3mm, and a diameter D2 of the end blade 21 is 1.02. Wherein the diameter D9 of the outermost periphery of the chisel edge 25 is 2.5mm, and the inclination angle R8 of the end tooth 27 relative to the horizontal plane is 2 degrees. The lower inclination and the height dimension are ensured, the cutting force of the end blade 21 and the peripheral blade 22 is ensured, the maximum effect can be exerted, and the processing efficiency is effectively improved.

In this embodiment, as shown in fig. 2 to 6, the end blade 21 further includes an end tooth 27 and a forming tooth 28, and the end tooth 27 and the forming tooth 28 are sequentially disposed. Specifically, the end tooth 27 includes a first end tooth surface 271 and a second end tooth surface 272 which are sequentially arranged, a tangent is made on the periphery of the end blade 21, an included angle R3 between the first end tooth surface 271 and the tangent is 8 °, an included angle R4 between the second end tooth surface 272 and the tangent is 18 °, and the length D3 of the first end tooth surface 271 is 0.12 m. Specifically, the forming tooth 28 comprises a first forming surface 281, a second forming surface 282 and a third forming surface 283 which are arranged in sequence, wherein the axial angle of the first forming surface 281 is 3 degrees, the radial angle is 12 degrees, the axial angle of the second forming surface 282 is 6 degrees, the radial angle is 25 degrees, and the length D8 of the first forming surface 281 is 0.06 mm. The cutting force of the end teeth 27 and the forming teeth 28 is balanced, and the pressure generated by the end blades in the machining process is balanced, so that the phenomenon of cutter breakage in the machining process is avoided.

In the present embodiment, as shown in fig. 1 and 7, the shearing angle of the peripheral edge 22 is 3 °, and the length D4 between the end edge 21 and the peripheral edge 22 is 2.3 mm. Specifically, the peripheral edge 22 includes a first peripheral edge surface 221 and a second peripheral edge surface 222, a tangent line is made on the periphery of the chisel edge 25, an included angle R5 between the first peripheral edge surface 221 and the tangent line is 12 °, an included angle R6 between the second peripheral edge surface 222 and the tangent line is 35 °, and a length D6 of the first peripheral edge surface 221 is 0.2mm, so that the peripheral edge 22 has good stability and cutting force.

As shown in fig. 1, a truncated cone 3 is arranged between the tool bit 2 and the tool holder 1, and an inclination angle R7 of the truncated cone 3 is 30 °. The length D5 of tool bit 2 is 5mm, the length D7 of tool bit 2, truncated cone 3 and handle of a knife 1 is 10mm, is convenient for install the cutter on corresponding equipment. The cross section width of handle of a knife 1 is 4mm, and its afterbody is provided with chamfer R9, avoids cutter closed angle fish tail user or other spare parts, and has the guide effect, is convenient for install the cutter on equipment.

Specifically, the slotting cutter is made of nano-particle tungsten carbide, has high toughness and wear resistance, can be used for high-speed M/C high-hardness high-speed cutting, can directly perform rough machining to fine machining on a heat treatment die, reduces the number of tool changing, improves the utilization rate of a machine tool, and saves the die manufacturing time.

The milling cutter is reasonable in structure and safe to use, the chisel edge 25 is positioned at the front end of the peripheral edge 22, one end of the arc edge 26 is connected with the chisel edge 25, the second end edge 24 is connected with the other end of the arc edge 26, the first end edge 23 is positioned at the front end of the second end edge 24, the arc edge 26 is recessed inwards, the included angle R1 between the second end edge 24 and the axis of the cutter head 1 is 2 degrees, the inclination angle R2 of the chisel edge 25 relative to the horizontal plane is 2 degrees, the radius D1 of the arc edge 26 is 0.3mm, and the diameter D2 of the end edge 21 is 1.02, so that a groove body with higher size, shape, precision and roughness can be formed, the yield of milling molding is improved, the phenomenon that the cutter collapses in the machining process is effectively prevented, the service life of the cutter is ensured, and the production efficiency and the production quality are effectively improved.

The technical scope of the present invention is not limited to the above embodiments, and any modifications, equivalent variations and modifications made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.

Claims (9)

1. The end-concave cambered surface milling cutter is characterized by comprising a cutter handle and a cutter head, wherein the cutter handle is axially and integrally connected with the cutter head, the cutter head comprises an end blade and a peripheral blade, the peripheral blade is spirally arranged on the side part of the cutter head and is arranged in a central symmetry way, the end edge is positioned at the front end of the peripheral edge, the helix angle R10 of the peripheral edge is 65 degrees, the end edge comprises a first end edge, a second end edge, a chisel edge and a curved edge, the chisel edge is positioned at the front end of the peripheral edge, one end of the arc edge is connected with the chisel edge, the second end edge is connected with the other end of the arc edge, the first end edge and the front end of the second end edge are arranged, the arc edge is inwards concave, the included angle R1 between the second end edge and the axis of the cutter head is 2 degrees, the angle of inclination R2 of the chisel edge relative to the horizontal plane is 2 degrees, the radius D1 of the arc edge is 0.3mm, and the diameter D2 of the end edge is 1.02.

2. The end recess face mill according to claim 1, wherein the end blade further comprises end teeth and formed teeth, the end teeth and the formed teeth being arranged in sequence.

3. The end-concave cambered surface milling cutter as claimed in claim 2, wherein said end tooth comprises a first end tooth surface and a second end tooth surface which are arranged in sequence, a tangent is made on the periphery of said end blade, the included angle R3 between said first end tooth surface and said tangent is 8 °, the included angle R4 between said second end tooth surface and said tangent is 18 °, and the length D3 of said first end tooth surface is 0.12 m.

4. The end-concave cambered surface milling cutter as claimed in claim 2, wherein the forming teeth comprise a first forming surface, a second forming surface and a third forming surface which are arranged in sequence, the axial angle of the first forming surface is 3 degrees, the radial angle is 12 degrees, the axial angle of the second forming surface is 6 degrees, the radial angle is 25 degrees, and the length of the first forming surface is 0.06 mm.

5. The end-concave arc milling cutter according to claim 1, wherein the shear angle of the peripheral edge is 3 °, and the length D4 between the end edge and the peripheral edge is 2.3 mm.

6. The end recess face mill according to claim 5, wherein the peripheral edge comprises a first peripheral edge surface and a second peripheral edge surface, a tangent is made at the periphery of the chisel edge, the first peripheral edge surface has an angle R5 of 12 degrees with the tangent, the second peripheral edge surface has an angle R6 of 35 degrees with the tangent, and the length D6 of the first peripheral edge surface is 0.2 mm.

7. The end-concave cambered surface milling cutter as claimed in claim 1, wherein a truncated cone is arranged between the cutter head and the cutter shank, and the inclination angle R7 of the truncated cone is 30 degrees.

8. The end-concave cambered surface milling cutter of claim 7, wherein the length D5 of the cutter head is 5mm, the lengths D7 of the cutter head, the truncated cone and the cutter handle are 10mm, the cross-sectional width of the cutter handle is 4mm, and the tail part of the cutter handle is provided with a chamfer R9.

9. An end recess face mill as claimed in claim 2, wherein the diameter of the outermost periphery of the chisel edge is 2.5mm and the angle of inclination R8 of the end tooth to the horizontal is 2 °.

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