CN215199817U

CN215199817U - Processing blind hole MCD single-edge highlight groove milling cutter

Info

Publication number: CN215199817U
Application number: CN202023133485.1U
Authority: CN
Inventors: 聂峰耀
Original assignee: Shanghai Yuher Diamond Tool Co ltd
Current assignee: Shanghai Yuher Diamond Tool Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-12-17
Anticipated expiration: 2030-12-23

Abstract

The utility model discloses a processing blind hole MCD single-edge highlight groove milling cutter, including handle of a knife, transition awl and blade installation department and MCD blade, it is provided with blade face of weld and chip removal face in the blade installation department, and blade face of weld is the inclined plane, and the chip removal face also is the inclined plane and intersects with blade face of weld at an angle; the MCD blade is reversely welded on the welding surface and is provided with a front cutter surface and a rear cutter surface which are mutually L-shaped, a front angle of 3 degrees is formed between the cutter point of the front cutter surface and the central axis of the blade mounting part, and the central height of the cutter point of the front cutter surface relative to the central axis of the blade mounting part is 0 +/-0.03; the rake face and the relief face each having a first cutting edge and a second cutting edge, wherein the first cutting edge has a width of 0.1mm and a first cutting edge relief angle α of 8 °; the secondary cutting edge relief angle β is 20 °. The utility model discloses a blade will be very sharp, rake face and back knife face mirror surface effect, and the effect of processing out can reach high light effect.

Description

Processing blind hole MCD single-edge highlight groove milling cutter

Technical Field

The utility model relates to a cutter technical field, in particular to processing blind hole MCD single-edge highlight groove milling cutter.

Background

MCD is composed of a crystal, cutters which are increasingly widely used in various fields also put forward higher and higher requirements on the machining effect of the cutters along with the development of the society at the present stage, and the MCD has the advantages of extremely high hardness and wear resistance, low friction coefficient, high thermal conductivity, low thermal expansion coefficient, small affinity with other machined materials and the like; the cutting blade has the advantages of difficult generation of built-up edges, small heat productivity, high heat conductivity and capability of avoiding the influence of heat on the cutting edge and a workpiece, so that the cutting edge is difficult to passivate, the cutting deformation is small, and a surface with higher quality can be obtained.

The MCD single-edge highlight circular nose slot milling cutter used for machining the plastic blind hole to obtain the highlight effect at present has the problems that the machined blind hole cannot be well discharged with chips, the chips are accumulated, the service life of the machined tool is short, or the machining effect of the machined tool is not ideal.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the above-mentioned technical problem that exists to current MCD single-edged highlight circle nose slot milling cutter provides one kind and has effectively combined that MCD material coefficient of friction is little, the coefficient of thermal expansion is low, the heat conductivity is high, can cut down extremely thin surely to take over, surely takes over and flows easily, and is little with the affinity of other materials, is difficult for producing long-pending bits tumour to improve the processing effect of cutter, increased the processing blind hole MCD single-edged highlight slot milling cutter in cutter life-span.

The utility model discloses the technical problem that will solve can realize through following technical scheme:

an MCD single-edge highlight groove milling cutter for machining blind holes comprises a cutter handle, a transition cone, a blade mounting part and an MCD blade, wherein the cutter handle, the transition cone and the blade mounting part are all made of hard alloy and are sequentially connected into a whole; the blade mounting part is provided with a blade welding surface and a chip removal surface, the blade welding surface is an inclined surface, and the chip removal surface is also an inclined surface and intersects with the blade welding surface at an angle; the MCD blade is reversely welded on the welding surface and is provided with a front cutter surface and a rear cutter surface which are mutually L-shaped, a front angle of 3 degrees is formed between the cutter point of the front cutter surface and the central axis of the blade mounting part, and the central height between the cutter point of the front cutter surface and the central axis of the blade mounting part is 0 +/-0.03; the rake face and the relief face each having a first cutting edge and a second cutting edge, wherein the first cutting edge has a width of 0.1mm and a first cutting edge relief angle α of 8 °; the secondary cutting edge relief angle β is 20 °.

In a preferred embodiment of the present invention, the surface of the MCD blade opposite to the flank surface is 45 ° to the central axis of the blade mounting portion.

In a preferred embodiment of the invention, the chip surface is at an angle of 135 ° to the extension of the welding surface of the blade and at an angle of 45 ° to the central axis of the mounting portion of the blade.

In a preferred embodiment of the present invention, the blade welding surface and the chip removal surface are mirror surfaces.

In a preferred embodiment of the present invention, the end face of the rake face of the MCD blade is exposed to the blade mounting portion 1.0 to 1.2mm, and the flank face is exposed to the blade mounting portion 0.5 to 0.7 mm.

In a preferred embodiment of the present invention, the rake face and the flank face are mirror faces.

Owing to adopted above technical scheme, the utility model discloses a blade is very sharp, rake face and back knife face mirror surface effect, and the effect of processing out can reach high light effect.

Drawings

Fig. 1 is a schematic structural view of a MCD single-edge high-finish slotting cutter for machining blind holes.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a view from direction a of fig. 2.

Detailed Description

The invention is further described below with reference to the accompanying drawings and the detailed description.

Referring to fig. 1 to 3, the MCD single-edge high-gloss groove milling cutter for processing blind holes shown in the figures comprises a cutter handle 3, a transition cone 5, a blade mounting part 6 and an MCD blade 4, wherein the cutter handle 3, the transition cone 5 and the blade mounting part 6 are all made of hard alloy and are sequentially connected into a whole.

The blade mounting part 6 is provided with a blade welding surface 1 and a chip removal surface 2, the blade welding surface 1 is an inclined surface, and the chip removal surface 2 is also an inclined surface and intersects with the blade welding surface 1 at an angle; especially, an included angle a of 135 degrees is formed between the chip removal surface 2 and the extension surface 1a of the welding surface 1, and an included angle b of 45 degrees is formed between the chip removal surface and the central axis 6a of the blade mounting part 6, so that the chip removal effect of the chip removal surface 2 is better.

Because the MCD material is easy to crack and desolder, in order to reduce the heat influence degree of the diamond material, the MCD blade 4 is reversely welded on the welding surface 1 by utilizing a vacuum welding method under the condition that the distance e between the end surface of the front knife face 4a of the MCD blade 4 and the front end surface 6b of the blade mounting part 6 is 1.0-1.2 mm, and the distance f between the circumferential directions of the rear knife face 4b and the blade mounting part 6 is 0.5-0.7 mm.

The front tool face 4a and the rear tool face 4b of the MCD blade 4 are L-shaped and are transitionally connected through a fillet 4c with the radius of R0.3 +/-0.02 mm, a 3-degree front angle c is formed between the tool tip 4aa of the front tool face 4a and the central axis 6a of the blade mounting part 6, and the central height h between the tool tip 4aa of the front tool face 4a and the central axis 6a of the blade mounting part 6 is 0 +/-0.03, so that the tool is sharper in the using process.

The rake face 4a and the flank face 4b each have a first cutting edge 4d and a second cutting edge 4e, wherein the width of the first cutting edge 4d is 0.1mm, and the relief angle α of the first cutting edge 4d is 8 °; the secondary cutting edge 4e has a relief angle β of 20 °.

An included angle d of 45 degrees is formed between the surface 4f of the MCD insert 4 opposite to the rear tool surface 4b and the central axis 6a of the insert mounting part 6. The insert welding surface 1, the chip removal surface 2, the rake surface 4a and the flank surface 4b are all mirror surfaces.

Claims

1. An MCD single-edge highlight groove milling cutter for machining blind holes comprises a cutter handle, a transition cone, a blade mounting part and an MCD blade, wherein the cutter handle, the transition cone and the blade mounting part are all made of hard alloy and are sequentially connected into a whole; the cutting tool is characterized in that a blade welding surface and a chip removal surface are arranged on the blade mounting part, the blade welding surface is an inclined surface, and the chip removal surface is also an inclined surface and intersects with the blade welding surface at an angle; the MCD blade is reversely welded on the welding surface and is provided with a front cutter surface and a rear cutter surface which are mutually L-shaped, a front angle of 3 degrees is formed between the cutter point of the front cutter surface and the central axis of the blade mounting part, and the central height between the cutter point of the front cutter surface and the central axis of the blade mounting part is 0 +/-0.03; the rake face and the relief face each having a first cutting edge and a second cutting edge, wherein the first cutting edge has a width of 0.1mm and a first cutting edge relief angle α of 8 °; the secondary cutting edge relief angle β is 20 °.

2. A MCD single-edge high-gloss groove milling cutter for machining blind holes as claimed in claim 1, wherein the surface of said MCD insert opposite to said relief surface is 45 ° to the central axis of said insert mounting portion.

3. The MCD single-edged high-grooving milling cutter for machining blind holes as claimed in claim 2, wherein said chip removal surface forms an included angle of 135 ° with said extension of said insert-bonding surface and simultaneously forms an included angle of 45 ° with said central axis of said insert-mounting portion.

4. The MCD single-edged high-gloss slot milling cutter for machining blind holes as claimed in claim 3, wherein the insert welding surface and the chip removal surface are mirror surfaces.

5. The MCD single-edge high-gloss groove milling cutter for machining the blind hole as claimed in claim 4, wherein the end face of the front cutter face of the MCD blade is exposed out of the blade mounting part by 1.0-1.2 mm, and the rear cutter face is exposed out of the blade mounting part by 0.5-0.7 mm.

6. The MCD single-edge high-gloss groove milling cutter for machining the blind hole as claimed in claim 5, wherein the front cutter face and the rear cutter face are mirror surfaces.