CN212217118U

CN212217118U - Cutting tool

Info

Publication number: CN212217118U
Application number: CN202020370867.7U
Authority: CN
Inventors: 温仁生
Original assignee: Shenzhen Mocheng Technology Co ltd
Current assignee: Shenzhen Mocheng Technology Co ltd
Priority date: 2020-03-23
Filing date: 2020-03-23
Publication date: 2020-12-25
Anticipated expiration: 2030-03-23

Abstract

The utility model relates to a cutter which is mainly used for the high light effect of CNC machine tool for processing non-ferrous metal, aluminum, acrylic and other product materials; the tool comprises a tool body and a diamond cutting piece; the cutter body comprises a cutter handle and a cutter head connected with the cutter handle, wherein one end of the cutter head is provided with an installation part, and the other end of the cutter head is provided with a transition part connected with the cutter handle; the diamond cutting piece is fixed at the installation department, just be equipped with the cutting edge on the diamond cutting piece, the cutting edge includes first cutting edge and second cutting edge, first cutting edge stretches out the tool bit setting along the tool bit axial, the second cutting edge radially stretches out the tool bit setting along the tool bit, circular arc transition between first cutting edge and the second cutting edge.

Description

Cutting tool

Technical Field

The utility model relates to a processing cutter technical field specifically is a cutter.

Background

The high-light cutting is a process of using a cutter to perform quick cutting on a CNC (computerized numerical control) machine tool to enable a product to generate a high-light surface, and the traditional CNC high-light cutting is to clamp a natural diamond cutter on a main shaft of a high-speed rotating engraving and milling machine to cut parts and generate a high-light area on the surface of the product. Most of the existing high-gloss cutting processes are to process a plurality of surfaces of a product in sequence, high-gloss cutting is difficult to be performed at the joint of adjacent planes and side surfaces on the product, and smooth transition is difficult to be realized.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

For solving the above problem, the utility model provides a cutter effectively carries out the hi-lite cutting to the side circular arc face and the plane of product to in the same direction as smooth connection transition, the highlight is effectual between side circular arc face and plane.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a tool comprising a tool body, a diamond cutter; the cutter body comprises a cutter handle and a cutter head connected with the cutter handle, wherein one end of the cutter head is provided with an installation part, and the other end of the cutter head is provided with a transition part connected with the cutter handle; the diamond cutting piece is fixed at the installation department, just be equipped with the cutting edge on the diamond cutting piece, the cutting edge includes first cutting edge and second cutting edge, first cutting edge stretches out the tool bit setting along the tool bit axial, the second cutting edge radially stretches out the tool bit setting along the tool bit, circular arc transition between first cutting edge and the second cutting edge.

Preferably, the first clearance angle of the blade is alpha, the alpha range is 0-8 degrees, the second clearance angle of the blade is beta, and the beta range is 12-17 degrees.

Preferably, the radius of the rounded corner of the arc transition of the first cutting edge and the second cutting edge is R1.0-R1.75mm.

Preferably, the mounting groove has been seted up on the installation portion terminal surface, the mounting groove extends from the installation portion terminal surface toward transition portion direction, and radially runs through the design at the tool bit, diamond cutting piece fixes on the mounting groove, and first cutting edge stretches out the mounting groove along the tool bit axial, and the second cutting edge radially stretches out the mounting groove along the tool bit.

Preferably, the transition part is integrally designed in a circular truncated cone shape, and the cross-sectional area of the transition part is reduced from one end of the cutter handle to one end of the cutter head.

(III) advantageous effects

Compared with the prior art, the beneficial effects of the utility model are that: the tool is not easy to wear and has long service life by adopting the tool body and the diamond cutting piece which are made of tungsten steel, and the surface of a processed part has good highlight effect by the cutting edge made of single crystal diamond; in addition, the first cutting edge and the second cutting edge extend out of the cutter head by the same distance so as to ensure the same cutting depth on the side circular arc surface and the plane of the product, the first cutting edge and the second cutting edge are in circular arc transition, and the first cutting edge and the second cutting edge are also provided with the same circular arc cutting edge as the first cutting edge in circular arc transition, so that the high-light cutting is conveniently carried out on the connection part of the side circular arc surface and the plane of the product, the smooth connection transition between the side circular arc surface and the plane is realized, and the high-light effect is ensured.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

fig. 1 shows a schematic overall structure diagram of an embodiment of the present invention;

fig. 2 shows a schematic view of a tool bit configuration according to an embodiment of the present invention;

figure 3 shows an overall side view of an embodiment of the present invention;

fig. 4 shows a cross-sectional view a-a in fig. 3.

In the figure: 1 tool body, 10 tool shanks, 11 tool bits, 110 mounting features, 111 transition features, 110a mounting pocket, 2 diamond cutters, 20 cutting edges, 201 first cutting edges, 202 second cutting edges, alpha first relief angles, beta second relief angles.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to the attached drawings 1-4, the embodiment of the utility model discloses a cutter, which is mainly used for the high light effect of CNC machine tool for processing non-ferrous metal, acrylic and other product materials, and comprises a cutter body 1 and a diamond cutting piece 2; the cutting tool body 1 comprises a tool shank 10 and a tool bit 11 connected with the tool shank 10, specifically, the tool shank 10 is designed in an integral cylindrical shape to be clamped by a clamp on a CNC (computer numerical control) machine tool, and the cutting tool body 1 can be made of hard alloy;

one end of the tool bit 11 is provided with a mounting part 110, and the other end is provided with a transition part 111 for connecting with the tool handle 10; the diamond cutting piece 2 is fixed on the mounting part 110, the diamond cutting piece 2 is provided with a cutting edge 20, the cutting edge 20 comprises a first cutting edge 201 and a second cutting edge 202, the first cutting edge 201 axially extends out of the tool bit 11, the second cutting edge 202 radially extends out of the tool bit 11 along the tool bit 11, specifically, the rake angle and the relief angle of the first cutting edge 201 are the same as those of the second cutting edge 202, the first cutting edge 201 is designed to be vertical to the axis of the tool bit 11, and the second cutting edge 202 is designed to be parallel to the axis of the tool bit 11, so that when the cutting tool is used for cutting and feeding, the adjacent two side surfaces can be subjected to high-light cutting at the same time, and it should be noted that the first cutting edge 201 and the second cutting edge 202 extend out of the tool bit 11 by the same distance to ensure that;

the first blade 201 and the second blade 202 are in arc transition, and specifically, the arc transition position of the first blade 201 and the second blade 202 is also provided with an arc blade which is the same as the first blade 201, so that the junction of a side arc surface and a plane of a product can be conveniently subjected to high-gloss cutting, smooth connection transition between the side arc surface and the plane can be realized, and the high-gloss effect can be ensured; in addition, the rounding radius of the arc transition between the first blade edge 201 and the second blade edge 202 is R1.0 to R1.75mm, and in the present embodiment, the rounding radius is preferably R1.5 mm.

In conclusion, the cutter can perform high-gloss cutting on the side arc surface and the plane of the product, realizes smooth transition at the joint of the side arc surface and the plane of the product and ensures a high-gloss effect; in addition, the tool adopts the tool body 1 and the diamond cutting piece 2 which are made of tungsten steel, so that the tool is not easy to wear and has long service life.

It should be noted that the diamond cutting member 2 can be processed by polycrystalline diamond and single crystal diamond, in this embodiment, the diamond cutting member 2 is preferably single crystal diamond, through the physical characteristics of the single crystal diamond, the impact strength during processing is improved, the wear resistance of the cutting edge is improved, the cutting edge is not easy to stick and generate scrap accumulation when cutting, the processing surface quality is good, so that when materials such as nonferrous metals, aluminum, acrylic and the like are processed, the surface roughness can reach Rz0.1-0.5 μm, and further the high-light cutting of the material surface is realized; in addition, the diamond cutting element 2 can be fixedly connected with the mounting portion 110 by a fixing method such as welding, adhesive-catalytic material fixing, and the like, in this embodiment, welding is preferred, specifically, the diamond cutting element 2 and the tool tip 11 are welded and fixed in a high-temperature vacuum environment, so that the thermal influence degree of the single crystal material is reduced, and the tool tip 11 is made of tungsten steel, so that the conditions that the single crystal material is cracked and desoldered due to the difference of thermal deformation coefficients of the single crystal material and the steel material can be effectively avoided.

Referring to fig. 4, fig. 4 is a cross-sectional view taken along line a-a of the side view of the embodiment of the present invention, where α in fig. 4 is a first clearance angle of the blade 20 and β is a second clearance angle of the blade 20; the first relief angle of cutting edge 20 is alpha, and alpha scope is 0 ~ 8 °, and the second relief angle of cutting edge 20 is beta, and the beta scope is 12 ~ 17 °, and in this embodiment, first relief angle alpha is 7 °, and second relief angle beta is 15 ° so that process the better materials of elasticity such as non ferrous metal, aluminium, ya keli, avoid the friction between course of working work piece and the back knife face, provide the quality of machined surface, guarantee highlight effect.

Furthermore, the end surface of the mounting portion 110 is provided with a mounting groove 110a, the mounting groove 110a extends from the end surface of the mounting portion 110 to the transition portion 111, and the cutting head 11 radially penetrates through the mounting groove, the diamond cutting element 2 is fixed on the mounting groove 110a, the first cutting edge 201 axially extends out of the mounting groove 110a along the cutting head 11, and the second cutting edge 202 radially extends out of the mounting groove 110a along the cutting head 11.

Further, the transition portion 111 is integrally designed in a truncated cone shape, the cross section area of the transition portion is reduced from one end of the tool shank 10 to one end of the tool bit 11, and the included angle between the transition portion 111 and the axis of the tool body 1 is 30 degrees, so that the tool shank 10 is gradually transited to the tool bit 11, the tool body 1 is prevented from being broken due to impact during machining, and the service life of the tool is prolonged.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A tool, characterized by comprising a tool body (1), a diamond cutter (2);

the cutting tool body (1) comprises a tool handle (10) and a tool bit (11) connected with the tool handle (10), wherein one end of the tool bit (11) is provided with a mounting part (110), and the other end of the tool bit is provided with a transition part (111) connected with the tool handle (10);

diamond cutting spare (2) are fixed in installation department (110), just be equipped with cutting edge (20) on diamond cutting spare (2), cutting edge (20) include first cutting edge (201) and second cutting edge (202), first cutting edge (201) are followed tool bit (11) axial and are stretched out tool bit (11) setting, second cutting edge (202) are radially stretched out tool bit (11) along tool bit (11) and are set up, circular arc transition between first cutting edge (201) and second cutting edge (202).

2. The tool according to claim 1, wherein the first clearance angle of the cutting edge (20) is α, in the range of 0-8 °, and the second clearance angle of the cutting edge (20) is β, in the range of 12-17 °.

3. The tool according to claim 1, wherein the rounded radius of the circular transition of the first (201) and second (202) cutting edges is R1.0-R1.75mm.

4. The cutting tool according to claim 1, wherein a mounting groove (110a) is formed in the end surface of the mounting portion (110), the mounting groove (110a) extends from the end surface of the mounting portion (110) to the transition portion (111) and is designed to penetrate through the cutting head (11) in the radial direction, the diamond cutting element (2) is fixed to the mounting groove (110a), and the first cutting edge (201) axially extends out of the mounting groove (110a) along the cutting head (11), and the second cutting edge (202) radially extends out of the mounting groove (110a) along the cutting head (11).

5. Tool according to claim 1, characterized in, that the transition part (111) is of an overall frustoconical design and its cross-sectional area decreases from the end of the shank (10) to the end of the tool head (11).