CN209521114U

CN209521114U - Cutting tool

Info

Publication number: CN209521114U
Application number: CN201821568752.8U
Authority: CN
Inventors: 颜炳姜; 李伟秋; 林一松
Original assignee: Conprofe Technology Group Co Ltd; Conprofe Green Tools Co Ltd
Current assignee: Smartguy Intelligent Equipment Co Ltd Guangzhou Branch
Priority date: 2018-09-25
Filing date: 2018-09-25
Publication date: 2019-10-22
Anticipated expiration: 2028-09-25

Abstract

The utility model discloses a kind of cutting tools, including cutter head and the knife handle being fixedly connected with the cutter head, the top surface that the cutter head has side and is connected with the side, the cutter head is equipped with 14-18 blade being distributed relative to the center of the top surface in emitting shape, the 14-18 blade extends on the side from the top surface, is equipped with cutter groove between every two adjacent blade.The cutting tool of the utility model has many advantages, such as that long service life, the rejection rate of workpieces processing are low, processing effect is good.

Description

Cutting tool

Technical field

The utility model relates to field of machining more particularly to a kind of cutting tools.

Background technique

Diamond cutter have extreme hardness and wearability, high heat conductance, low thermal coefficient of expansion, low-friction coefficient, with it is non- The features such as ferrous metal affinity is small makes it obtain very high machining accuracy and processing efficiency in high-speed cutting.Diamond cutter Processing characteristics be to be determined by the crystal structure of diamond, in diamond crystal, each carbon atom is adjacent with four Carbon atom forms covalent bond, is spatially in positive tetrahedron structure, binding force is high between the carbon atom of this structure, macroscopically Show high hardness.

Currently, diamond cutter mainly has single-crystal diamond (MCD) cutter, polycrystalline diamond (PCD) cutter and diamond Coated cutting tool.Due to the characteristic of diamond lattic structure, the directionality of performance is very strong, and single-crystal diamond is easily along its cleavage facial cleft； Polycrystalline diamond is formed by the different fine diamond of orientation is grained sintered, is shown as isotropy, is not easy along its cleavage facial cleft； Diamond-coated tools also can get isotropic diamond coatings, so being not easy along its cleavage by controlling depositing operation Facial cleft.

Polycrystal diamond cutter compares with diamond-coated tools, and there are diamond coatings and cement carbide substrate by the latter Binding force is weak, between coating and the substrate difference of thermal expansion coefficients it is larger and the problems such as generate internal stress, diamond-coated tools Disbonding easily occurs in high-speed milling, leads to coating failure；, since adhesive is added, hardness and wearability are lower than for the former Diamond-coated tools, but the serious binding force problem of diamond-coated tools is not present in it.

However, when using common single-blade, twolip, four sword PCD knives processing glass or ceramics, due to cutter in process It can push, be easy crushing glass or ceramics, cause rejection rate higher, in addition the service life of common PCD knife is relatively low.

Utility model content

The purpose of this utility model is to provide the rejection rate of a kind of cutting tool, long service life, workpieces processing is low, add Work efficiency fruit is preferable.

To realize above purpose of utility model, the utility model provides a kind of cutting tool, including cutter head and with it is described The knife handle that cutter head is fixedly connected, the top surface that the cutter head has side and is connected with the side, the cutter head are equipped with phase Center for the top surface is in 14-18 blade of emitting shape distribution, and the 14-18 blade is extended to from the top surface On the side, cutter groove is equipped between every two adjacent blade.

Optionally, in the shape of a spiral, the helical angle of the blade is 15 ° -30 ° to the 14-18 blade.

Optionally, the anterior angle of the cutter groove is 3 ° -12 °.

Optionally, the length of the cutter groove is 3mm-7mm.

Optionally, the depth of the cutter groove is 1mm-2mm.

Optionally, the tread of the blade is 0.05mm-0.8mm.

Optionally, the shape of the blade is triangle or trapezoidal.

Optionally, the cutter head and knife handle are cylindrical.

Optionally, the cutter head includes substrate and the polycrystalline diamond layer in the substrate；The knife handle and institute The material for stating substrate is hard alloy, and the substrate welds together with the knife handle.

Optionally, the top center region of the cutter head is equipped with groove.

The utility model has the beneficial effects that a kind of cutting tool provided by the utility model is 14-18 sword PCD knife, relatively For existing common PCD knife, the service life is longer for the cutting tool of the utility model, and the rejection rate of workpieces processing is more It is low.In addition, the cutting tool of the utility model also has high in machining efficiency, wearability is good, coefficient of friction is small, thermal coefficient is high etc. Advantage.

Detailed description of the invention

It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by Regard the restriction to the scope of the utility model as.

Fig. 1 is the stereoscopic schematic diagram of the cutting tool of the utility model；

Fig. 2 is the schematic front view of the cutting tool of the utility model；

Fig. 3 is the schematic side view of the cutting tool of the utility model；

Fig. 4 is the partial enlargement diagram of the cutting tool of Fig. 1.

Main element symbol description:

10- cutter head；

20- knife handle；

11- blade；

12- cutter groove；

13- groove；

The top surface 31-；

The side 32-.

Specific embodiment

Below in conjunction with attached drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear Chu is fully described by, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole realities Apply example.

The component of the utility model embodiment being usually described and illustrated herein in the accompanying drawings can be matched with a variety of different It sets to arrange and design.Therefore, the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to below The range of claimed invention is limited, but is merely representative of the selected embodiment of the utility model.It is practical based on this Novel embodiment, those skilled in the art's every other implementation obtained without making creative work Example, fall within the protection scope of the utility model.

It hereinafter, can the term " includes " used in the various embodiments of the utility model, " having " and its homologous Word is meant only to indicate special characteristic, number, step, operation, the combination of element, component or aforementioned item, and is understood not to The combined presence or increasing of one or more other features, number, step, operation, element, component or aforementioned item is excluded first A possibility that adding the combination of one or more features, number, step, operation, element, component or aforementioned item.

In the various embodiments of the utility model, statement " A or/and B " includes any combination of the text listed file names with Or all combinations, it may include A, may include B or may include A and B both.

In the description of the present invention, it should be understood that term " longitudinal direction ", " transverse direction ", "upper", "lower", " preceding ", The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", " transverse direction ", "top", "bottom", "inner", "outside" be based on Orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than instruction or dark Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair The limitation of the utility model.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and should not be understood as referring to Show or imply relative importance.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term Stating may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be It can be combined in any suitable manner in any one or more embodiment or examples.

In the description of the present invention, unless otherwise specified and limited, it should be noted that term " installation ", " phase Even ", " connection " shall be understood in a broad sense, for example, it may be mechanical connection, the connection being also possible to inside two elements can be It is connected directly, can also indirectly connected through an intermediary, for the ordinary skill in the art, it can be according to specific Situation understands the concrete meaning of above-mentioned term.Unless otherwise defined, otherwise all terms used herein (including technical term With scientific term) with identical as the various normally understood meanings of embodiment one skilled in the art of the utility model Meaning.The term (term such as limited in the dictionary generally used) is to be interpreted as having and lead in the relevant technologies The identical meaning of situational meaning in domain and it will be interpreted as having Utopian meaning or meaning too formal, unless It is clearly defined in the various embodiments of the utility model.

Please refer to Fig.1 to Fig.3, the utility model provides a kind of cutting tool, including cutter head 10 and with the cutter head 10 The knife handle 20 being fixedly connected, the top surface 31 that the cutter head 10 has side 32 and is connected with the side 32, the cutter head 10 Be equipped with relative to the top surface 31 center be in emitting shape distribution 14-18 blade 11, the 14-18 blade 11 from The top surface 31 extends on the side 32, is equipped with cutter groove 12 between every two adjacent blade 11.

Specifically, the cutter head 10 and knife handle 20 are cylindrical.

Optionally, in the shape of a spiral, the helical angle of the blade 11 is 15 ° -30 ° to the 14-18 blade 11.

Optionally, the anterior angle of the cutter groove 12 is 3 ° -12 °；The anterior angle of the cutter groove 12 fathoms as 0.1mm- 0.5mm。

Optionally, the length of the cutter groove 12 is 3mm-7mm.

Optionally, the depth of the cutter groove 12 is 1mm-2mm.

Optionally, the tread of the blade 11 is 0.05mm-0.8mm.

Optionally, the surface roughness Ra of the blade 11 is 0.1 μm -0.4 μm.

Optionally, the shape of the blade 11 is triangle or trapezoidal.

Referring to Fig. 4, on the top surface 31 of the cutter head 10, plane where the slot bottom of the cutter groove 12 be located at the knife The angular range of the side of the blade 11 of 12 two sides of slot is 60 ° -120 °.

Optionally, the cutter head 10 includes substrate and the polycrystalline diamond layer in the substrate.

Optionally, the material of the substrate and the knife handle 20 is hard alloy, and the substrate and the knife handle 20 weld It is connected together.

Specifically, the substrate and the knife handle 20 need to select suitable cemented carbide material, usually selection tungsten carbide Base cemented carbide, it is however generally that, when cobalt content is identical, tungsten carbide crystal grain degree is smaller, and hardness is bigger, wearability is better, still Bending strength, toughness relative reduction, in addition, cobalt content is bigger when other conditions are constant, the toughness of material is better, but hardness Relative reduction, specifically how to select material optionally for, substrate described in the utility model is selected hard with the knife handle 20 Matter alloy is tungsten carbide base carbide alloy, and wherein the quality percentage amounts of cobalt are no more than 12%, and grain size is 0.4 μm.

Specifically, the top center region of the cutter head 10 is equipped with groove 13, to avoid described in workpiece process The top center portion of cutter head 10 point causes machining interference.

Optionally, the groove 13 is rounded.

Between the design of multiple-cutting-edge PCD knife usually requires between the shape (triangle, trapezoidal etc.) in view of blade 11, blade 11 Away from, blade 11 angle (two-point method: 11 top end point A of blade, 11 lower end of blade point B, center of circle O, angle is ∠ OAB, AB and OA Angle), it is contemplated that (cutter groove 12 is deeper, and mechanical strength is got over for the depth of the mechanical strength of blade 11, wear resistance, cutter groove 12 It is low, and cutter groove 12 may shallowly interfere with very much processing effect).The utility model comprehensively considers multiple designs of multiple-cutting-edge PCD knife to want Element provides a kind of cutting tool for designing reasonable, mechanical strength and wear resistance is higher and processing effect is excellent.

Using common single-blade, twolip, four sword PCD knives processing glass or ceramics when, due in process cutter can under Pressure is easy crushing glass or ceramics, causes rejection rate higher, in addition the service life of common PCD knife is relatively low.The utility model A kind of 14-18 sword PCD knife is provided, compared with common PCD knife, the monodentate cutting output of the 14-18 sword PCD knife is substantially reduced, by Blade 11 and wear of work amount are determined in scrap rate, therefore relative to common PCD knife, the 14-18 sword PCD knife of the utility model The roughness for processing obtained workpiece is substantially reduced.Also, for common PCD knife, the 14-18 sword of the utility model The service life of PCD knife is more long, and the service life of common PCD knife is usually ten to 20 workpiece of polishing, and this is practical new The service life of the 14-18 sword PCD knife of type can reach several hundred workpiece of polishing.

Specifically, the PCD material that the cutting tool of the utility model uses has the advantage that

1, the hardness of PCD is 8000HV, is 80 to 120 times of hard alloy；

2, the thermal coefficient of PCD is 700W/mk, is 1.5 to 9 times of hard alloy, therefore PCD cutter heat transfer is fast Speed；

3, the coefficient of friction of PCD is generally 0.1~0.3, and the coefficient of friction of hard alloy is 0.4~1, therefore PCD knife Tool is significantly reduced cutting force；

4, the thermal expansion coefficient of PCD is 0.9 × 10^-6To 1.18 × 10^-6, it is the 1/5 of hard alloy, therefore PCD cutter is warm Deform small, machining accuracy height.

The above advantage based on PCD material, the cutting element of the utility model have long service life, workpieces processing it is useless The advantages that product rate is low, high in machining efficiency, wearability is good, coefficient of friction is small, thermal coefficient is high.It is arrived in processing revolving speed S for 10000 20000r/min, in the case that cutter bite is 0.005mm, the cutting element of the utility model is for processing 5.5 inches of hands 200-300 piece or so can be processed when the glass contours of machine screen size.

Embodiment 1

A kind of cutting tool, including cutter head 10 and the knife handle 20 being fixedly connected with the cutter head 10, the cutter head 10 has The top surface 31 for having side 32 and being connected with the side 32, the cutter head 10 is equipped with is in relative to the center of the top surface 31 14 blades 11 of emitting shape distribution, 14 blades 11 extend on the side 32 from the top surface 31, every two Cutter groove 12 is equipped between adjacent blade 11.

The cutter head 10 includes substrate and the polycrystalline diamond layer in the substrate；The substrate and the knife handle 20 material is tungsten carbide base carbide alloy, and the substrate welds together with the knife handle 20.

The cutter head 10 and knife handle 20 are cylindrical；The top center region of the cutter head 10 is equipped with groove 13, described Groove 13 is rounded.

In the shape of a spiral, the helical angle of the blade 11 is 15 ° to 14 blades 11.

The anterior angle of the cutter groove 12 is 3 °；

The anterior angle of the cutter groove 12 fathoms as 0.1mm.

The length of the cutter groove 12 is 3mm.

The depth of the cutter groove 12 is 1mm.

The tread of the blade 11 is 0.1mm.

The surface roughness Ra of the blade 11 is 0.2 μm.

The shape of the blade 11 is triangle.

Following table illustrate the utility model embodiment 1 record cutting tool and existing welding type PCD profile cutter and The comparative situation of the performance test data of hard alloy profile cutter.

Embodiment 2

A kind of cutting tool, including cutter head 10 and the knife handle 20 being fixedly connected with the cutter head 10, the cutter head 10 has The top surface 31 for having side 32 and being connected with the side 32, the cutter head 10 is equipped with is in relative to the center of the top surface 31 16 blades 11 of emitting shape distribution, 16 blades 11 extend on the side 32 from the top surface 31, every two Cutter groove 12 is equipped between adjacent blade 11.

In the shape of a spiral, the helical angle of the blade 11 is 20 ° to 16 blades 11.

The anterior angle of the cutter groove 12 is 9 °；

The anterior angle of the cutter groove 12 fathoms as 0.3mm.

The length of the cutter groove 12 is 5mm.

The depth of the cutter groove 12 is 1.5mm.

The tread of the blade 11 is 0.4mm.

The surface roughness Ra of the blade 11 is 0.3 μm.

The shape of the blade 11 is trapezoidal.

Following table illustrate the utility model embodiment 2 record cutting tool and existing welding type PCD profile cutter and The comparative situation of the performance test data of hard alloy profile cutter.

Embodiment 3

A kind of cutting tool, including cutter head 10 and the knife handle 20 being fixedly connected with the cutter head 10, the cutter head 10 has The top surface 31 for having side 32 and being connected with the side 32, the cutter head 10 is equipped with is in relative to the center of the top surface 31 18 blades 11 of emitting shape distribution, 18 blades 11 extend on the side 32 from the top surface 31, every two Cutter groove 12 is equipped between adjacent blade 11.

In the shape of a spiral, the helical angle of the blade 11 is 30 ° to 18 blades 11.

The anterior angle of the cutter groove 12 is 12 °；

The anterior angle of the cutter groove 12 fathoms as 0.5mm.

The length of the cutter groove 12 is 7mm.

The depth of the cutter groove 12 is 2mm.

The tread of the blade 11 is 0.8mm.

The surface roughness Ra of the blade 11 is 0.1 μm.

The shape of the blade 11 is triangle.

Following table illustrate the utility model embodiment 3 record cutting tool and existing welding type PCD profile cutter and The comparative situation of the performance test data of hard alloy profile cutter.

It will be appreciated by those skilled in the art that the accompanying drawings are only schematic diagrams of a preferred implementation scenario, module in attached drawing or Process is not necessarily implemented necessary to the utility model.

It will be appreciated by those skilled in the art that the module in device in implement scene can be described according to implement scene into Row is distributed in the device of implement scene, can also be carried out corresponding change and is located at the one or more dresses for being different from this implement scene In setting.The module of above-mentioned implement scene can be merged into a module, can also be further split into multiple submodule.

The foregoing is merely the preferable implementation examples of the utility model, are not intended to limit the utility model, it is all Within the spirit and principles of the utility model, it is practical new to should be included in this for any modification, equivalent replacement, improvement and so on Within the protection scope of type.

Claims

1. a kind of cutting tool, which is characterized in that including cutter head and the knife handle being fixedly connected with the cutter head, the cutter head tool The top surface for having side and being connected with the side, the cutter head, which is equipped with, to be distributed relative to the center of the top surface in emitting shape 14-18 blade, the 14-18 blade extend on the side from the top surface, every two adjacent blade it Between be equipped with cutter groove.

2. cutting tool as described in claim 1, which is characterized in that the 14-18 blade in the shape of a spiral, the blade Helical angle be 15 ° -30 °.

3. cutting tool as described in claim 1, which is characterized in that the anterior angle of the cutter groove is 3 ° -12 °.

4. cutting tool as described in claim 1, which is characterized in that the length of the cutter groove is 3mm-7mm.

5. cutting tool as described in claim 1, which is characterized in that the depth of the cutter groove is 1mm-2mm.

6. cutting tool as described in claim 1, which is characterized in that the tread of the blade is 0.05mm-0.8mm.

7. cutting tool as described in claim 1, which is characterized in that the shape of the blade is triangle or trapezoidal.

8. cutting tool as described in claim 1, which is characterized in that the cutter head and knife handle are cylindrical.

9. cutting tool as described in claim 1, which is characterized in that the cutter head includes substrate and is set in the substrate Polycrystalline diamond layer；The knife handle and the material of the substrate are hard alloy, and the substrate is welded on the knife handle Together.

10. cutting tool as described in claim 1, which is characterized in that the top center region of the cutter head is equipped with groove.