CN216065718U

CN216065718U - Quick shaping milling cutter

Info

Publication number: CN216065718U
Application number: CN202122295102.9U
Authority: CN
Inventors: 杨炳辉; 胡新民
Original assignee: Dongguan Lingyi Precision Metal Co ltd
Current assignee: Dongguan Lingyi Precision Metal Co ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-03-18
Anticipated expiration: 2031-09-22

Abstract

The utility model discloses a rapid forming milling cutter which comprises a cutter handle, a first cutter head and a second cutter head, wherein the first cutter head and the second cutter head extend out of one end of the cutter handle and are provided with a gap D1, a long end blade is arranged on the end surface of the first cutter head, a short end blade is arranged on the end surface of the second cutter head, peripheral blades are arranged on the peripheries of the first cutter head and the second cutter head, inner side blades are arranged on the inner side surfaces of the first cutter head and the second cutter head, the long end blade is longer than the short end blade, the length of the long end blade is 2.7mm, the length of the short end blade is 1.9mm, and the inclination angle r1 of the long end blade and the short end blade relative to the horizontal plane is 1-1.5 degrees. The utility model has reasonable structure, safe and convenient use, difficult cutter breakage and good mirror surface effect, the lengths of the first cutter head and the second cutter head are the depth of the annular groove to be processed, the first cutter head and the second cutter head rotate downwards at high speed to feed the cutter, a workpiece is processed and formed at one time, the forming speed is high, the working efficiency is effectively improved, and the production quantity requirement is met.

Description

Quick shaping milling cutter

Technical Field

The utility model relates to the field of milling cutters, in particular to a rapid forming 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. The existing milling cutter is slow in forming speed and low in machining efficiency, and cannot meet machining requirements.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the present invention is to provide a rapid forming milling cutter to solve the problems in the background art mentioned above.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: the utility model provides a quick shaping milling cutter, includes handle of a knife, first tool bit and second tool bit, first tool bit with the second tool bit is followed the one end of handle of a knife is stretched out and is provided with interval D1, interval D1's distance is 1.6mm, first tool bit with distance D2 between the second tool bit periphery is 7mm, be provided with long end sword on the terminal surface of first tool bit, be provided with short end sword on the terminal surface of second tool bit, first tool bit with be provided with the periphery sword in the periphery of second tool bit, the medial surface is provided with interior side sword, long end sword is good at short end sword, long end sword's length is 2.7mm, short end sword's length is 1.9mm, long end sword with short end sword is 1 to 1.5 for the angle of inclination r1 of the relative horizontal plane.

As a further elaboration of the above technical solution:

in the above technical scheme, the long end blade with be connected with between the short end blade and have connected the face, the both sides downward sloping of connecting the face extends to the handle of a knife forms the inclined plane, the inclined plane with the medial surface forms the chip groove, the width of chip groove is 2.2 mm.

In the technical scheme, the blade length of the first cutter head and the blade length of the second cutter head are 4mm, the cut depth is 3.5mm, the shearing angle is 4 degrees, and the tooth clearance cutting angle is 70 degrees.

In the above technical solution, the peripheral cutting edge includes a first peripheral surface, a second peripheral surface and a third peripheral surface which are connected in sequence, a tangent is made at the periphery of the end cutting edge, an included angle r2 between the first peripheral surface and the tangent is 12 °, and an included angle r3 between the second peripheral surface and the tangent is 25 °.

In the above technical solution, the length of the first outer circumferential surface is 0.6mm, and the length of the second outer circumferential surface is 1.2 mm.

In above-mentioned technical scheme, long end sword with short end sword is including the first end cutting part and the second end cutting part that connect gradually tangent line is done to the periphery of first end cutting part, first end cutting part is 7 with tangential contained angle r4, second end cutting part is 15 with tangential contained angle r 5.

In the technical scheme, an included angle r5 between the inner side edge and the axis of the tool holder is 12 degrees.

In the technical scheme, the total length of the knife handle and the first and second knife heads is 50mm, the cross section width of the knife handle is 8mm, and the tail of the knife handle is provided with a chamfer r 6.

Compared with the prior art, the utility model has the beneficial effects that: the utility model has reasonable structure, safe and convenient use, difficult knife breakage and good mirror effect, the first knife head and the second knife head extend out from one end of the knife handle and are provided with a space D1, the distance of the space D1 is 1.6mm, the distance D2 between the peripheries of the first knife head and the second knife head is 7mm, the end surface of the first knife head is provided with a long end edge, the end surface of the second knife head is provided with a short end edge, the peripheries of the first knife head and the second knife head are provided with outer peripheral edges, the inner side surfaces of the first knife head and the second knife head are provided with inner side edges, the long end edge is longer than the short end edge, the length of the long end edge is 2.7mm, the length of the short end edge is 1.9mm, the inclination angle r1 of the long end edge and the short end edge relative to the horizontal plane is 1-1.5 degrees, the lengths of the first knife head and the second knife head are the depth of the annular groove to be processed, when the first knife head and the second knife head rotate downwards at high speed to feed the knife tool, a workpiece is processed and formed in one-time, the forming speed is high, the working efficiency is effectively improved, and the production quantity requirement is met.

Drawings

FIG. 1 is a front view of the present invention;

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

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

FIG. 4 is a schematic view of the construction of the peripheral edge of the present invention;

FIG. 5 is a schematic view of the construction of the long and short end blades of the present invention;

fig. 6 is a schematic view of the structure of the inner blade in 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 to 6, the rapid prototyping milling cutter comprises a cutter handle 1, a first cutter head 2 and a second cutter head 3, wherein the first cutter head 2 and the second cutter head 3 extend out from one end of the cutter handle 1 and are provided with a distance D1, and the distance D1 is 1.6 mm. The spacing D1 is the inner diameter of the annular groove to be machined. Wherein, the distance of interval D1 can be adjusted according to actual processing demand to satisfy the inner diameter demand of annular groove. The distance D2 between the first tool bit 2 with the second tool bit 3 periphery is 7mm, be provided with long end sword 4 on the terminal surface of first tool bit 2, be provided with short end sword 5 on the terminal surface of second tool bit 3, first tool bit 2 with be provided with peripheral sword 6 on the second tool bit 3 periphery, the medial surface is provided with inside sword 7, long end sword 4 is longer than short end sword 5, the length of long end sword 4 is 2.7mm, the length of short end 5 is 1.9mm, the angle of inclination r1 of long end sword 4 with short end sword 5 horizontal plane is 1 to 1.5. The long end edge 4, the short end edge 5 and the peripheral edge 6 form a main cutting edge, and the peripheral edge 6 and the inside edge 7 form a main forming edge.

Specifically, as shown in fig. 2, a connecting surface 8 is connected between the long end blade 4 and the short end blade 5, two sides of the connecting surface 8 extend downwards to the tool shank 1 to form an inclined surface 9, the inclined surface 9 and the inner side blade form a chip discharge groove, and the width of the chip discharge groove is 2.2 mm. When the plunge milling cutter rotates downwards at a high speed for feeding, the waste chips are discharged quickly, and the influence on processing caused by the blockage of the waste chips is avoided. The chip removal groove width of both sides can be the same also can set up to the left side width big, and the right side width is little, can adjust according to actual processing demand to satisfy the chip removal demand.

In this embodiment, as shown in fig. 4, the outer peripheral blade 6 includes a first outer peripheral surface 61, a second outer peripheral surface 62, and a third outer peripheral surface 63 connected in sequence, a tangent is made at the outer periphery of the end blade, an included angle r2 between the first outer peripheral surface 61 and the tangent is 12 °, and an included angle r3 between the second outer peripheral surface 62 and the tangent is 25 °. Specifically, the length of the first outer peripheral surface 61 is 0.6mm, and the length of the second outer peripheral surface 62 is 1.2 mm.

In the present embodiment, as shown in fig. 5, the long end blade 4 and the short end blade 5 include a first end blade portion 41 and a second end blade portion 42 which are connected in sequence, a tangent line is formed on the outer periphery of the first end blade portion 41, an included angle r4 between the first end blade portion 41 and the tangent line is 7 °, and an included angle r5 between the second end blade portion 41 and the tangent line is 15 °. By adopting the angle setting of the utility model, the maximum effect of the cutting edge can be exerted, the processing efficiency is effectively improved, the cutter is not easy to break, and the service life of the cutter is ensured.

Specifically, as shown in fig. 6, the included angle r6 between the inner edge 7 and the axis of the tool holder 1 is 12 °. By adopting the angle arrangement of the utility model, the maximum effect of the main forming blade can be exerted, the processing efficiency is effectively improved, and the mirror surface effect of the circumferential inner wall of the annular groove is better.

In the present embodiment, as shown in fig. 1 to 3, the first and

second tool bits

2 and 3 have a blade length of 4mm, a depth of cut of 3.5mm, a shear angle of 4 °, and a backlash cut angle of 70 °. The length of the first tool bit 2 and the second tool bit 3 is the depth of the annular groove to be machined. Specifically, handle of a knife 1 with the total length of first tool bit 2, second sword 3 is 50mm, the cross section width of handle of a knife 1 is 8mm, and its afterbody is provided with chamfer r7, is convenient for install the cutter on corresponding processing equipment, and avoids the cutter afterbody to the fish tail of people's fish tail.

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 utility model has reasonable structure, safe and convenient use, difficult knife breakage and good mirror effect, the first knife head 2 and the second knife head 3 extend out from one end of the knife handle 1 and are provided with a distance D1, the distance of the distance D1 is 1.6mm, the distance D2 between the peripheries of the first knife head 2 and the second knife head 3 is 7mm, the end surface of the first knife head 2 is provided with a long end blade 4, the end surface of the second knife head 2 is provided with a short end blade 5, the peripheries of the first knife head 2 and the second knife head 3 are provided with outer peripheral blades 6, the inner side surface is provided with an inner side blade 7, the long end blade 4 is longer than the short end blade 5, the length of the long end blade 4 is 2.7mm, the length of the short end blade 5 is 1.9mm, the inclination angle r1 of the long end blade 4 and the short end blade 5 relative to the horizontal plane is 1-1.5 degrees, the lengths of the first knife head 2 and the second knife head 3 are annular groove depth to be processed, when the first knife head 2 and the second knife head 3 rotate downwards at high speed, the workpiece is formed by one-step machining, the forming speed is high, the working efficiency is effectively improved, and the production quantity requirement is met.

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

1. The utility model provides a quick shaping milling cutter, its characterized in that, includes handle of a knife, first tool bit and second tool bit, first tool bit with the second tool bit is followed stretch out and be provided with interval D1 in the one end of handle of a knife, interval D1's distance is 1.6mm, first tool bit with distance D2 between the second tool bit periphery is 7mm, be provided with long end sword on the terminal surface of first tool bit, be provided with short end sword on the terminal surface of second tool bit, first tool bit with be provided with the periphery sword in the periphery of second tool bit, the medial surface is provided with inside edge, long end sword is good at short end sword, long end sword's length is 2.7mm, short end sword's length is 1.9mm, long end sword with short end sword is 1 to 1.5 for the angle of inclination r1 of the relative horizontal plane.

2. The milling cutter according to claim 1, wherein a connecting surface is connected between the long end blade and the short end blade, two sides of the connecting surface are inclined downwards and extend to the cutter shank to form an inclined surface, the inclined surface and the inner side surface form a chip groove, and the width of the chip groove is 2.2 mm.

3. The rapid prototyping milling cutter tool of claim 1 wherein the first and second cutting inserts have a blade length of 4mm, a depth of cut of 3.5mm, a shear angle of 4 ° and a gash cut angle of 70 °.

4. The milling cutter according to claim 1, wherein the peripheral cutting edge comprises a first peripheral surface, a second peripheral surface and a third peripheral surface which are connected in sequence, a tangent is formed at the periphery of the end cutting edge, an included angle r2 between the first peripheral surface and the tangent is 12 °, and an included angle r3 between the second peripheral surface and the tangent is 25 °.

5. The milling cutter according to claim 4, wherein the first peripheral surface has a length of 0.6mm and the second peripheral surface has a length of 1.2 mm.

6. The milling cutter according to claim 1, wherein the long end blade and the short end blade include a first end blade portion and a second end blade portion connected in sequence, a tangent is formed at an outer circumference of the first end blade portion, an included angle r4 between the first end blade portion and the tangent is 7 °, and an included angle r5 between the second end blade portion and the tangent is 15 °.

7. The rapid prototyping milling cutter tool of claim 1 wherein the angle r5 between the inside edge and the shank axis is 12 °.

8. The rapid prototyping milling cutter tool of claim 1 wherein the total length of the shank and the first and second cutting tips is 50mm, the shank has a cross-sectional width of 8mm and a chamfer r6 is provided at the end thereof.