CN217318670U

CN217318670U - Double-edged graver

Info

Publication number: CN217318670U
Application number: CN202221177506.6U
Authority: CN
Inventors: 寇自力; 王润; 邱志国; 吴明蒗
Original assignee: Chengdu Diamond Tools Co ltd
Current assignee: Chengdu Diamond Tools Co ltd
Priority date: 2022-05-12
Filing date: 2022-05-12
Publication date: 2022-08-30
Anticipated expiration: 2032-05-12

Abstract

The utility model discloses a twolip carving tool, including base member and sword base, the tip of base member is provided with the cross-section of following the axial excavation and is trapezoidal recess, sword base card is put in the recess, sword base both sides face respectively with the both sides wall surface welded connection of recess, the equal radial extension of cutting edge of sword base both sides the recess. The utility model discloses a tip at the base member sets up the cross-section and is trapezoidal recess, knife blank both sides face respectively with the both sides wall face welded connection of recess to make knife blank protrusion in the base member, make the area of weld of knife blank and base member increase, improve the joint strength of knife blank and base member, reduce the ease that the knife blank breaks away from the base member.

Description

Double-edged graver

Technical Field

The utility model relates to a stone material processing cutter technical field especially relates to a twolip carving tool.

Background

The traditional artificial stone carving mainly comprises relief, line carving, lettering and the like, and due to the fact that physical labor is heavy, working intensity is high, the working environment is severe, and people are continuously exhausted in the artificial stone carving industry, the traditional artificial stone carving cannot meet the requirements of modern economic society, particularly the requirements of people on personalized and refined products.

In recent years, with the introduction of new products such as computer engraving machines, laser engraving machines and the like, mechanized and automatic engraving operations are realized by using high-tech means, the requirements of modern stone engraving are met, and the method is widely applied to the stone industry. However, in practical application, the stone processing tool used in cooperation with the engraving machine is generally a hard alloy blade, and can be competent for performing embossment on marble, gypsum and the like with soft materials, but the problems of low processing precision, low production efficiency, short service life of the tool and the like exist when the embossment is performed on granite with high hardness. These problems not only greatly increase the manufacturing cost of the granite embossment, but also cause that the quality of the granite embossment cannot be guaranteed, and the granite embossment becomes a road barricade which hinders the processing of the granite embossment.

Polycrystalline diamond (PCD) is an artificially synthesized product, is formed by sintering diamond powder serving as a raw material at high temperature and high pressure, and has hardness of HV 4000-10000. The stone carving tool made of polycrystalline diamond has enough hardness, but the fixing effect of the polycrystalline diamond tool blank and the tool bar may not reach enough strength, so that the tool blank is easy to fall off.

For example, chinese patent No. CN211222814U discloses a reinforced double-edged stone carving tool, which employs a thickened tool blank body, the back of the tool blank is welded to the back of a holder, the bottom of the holder is welded to the bottom of the tool blank, and a reverse welding process is employed to weld the diamond surface of the tool blank and the back of the tool blank to the tool bar assembly to the maximum extent compared with the conventional high-frequency welding process of the alloy surface and the alloy surface. This scheme has improved the welding strength to diamond and sword blank to a certain extent, but, only the back and the bottom surface of sword blank weld, and welding area is less relatively, and the welding fastness is not high, causes diamond and sword blank to drop easily.

In addition, chinese patent with publication number CN210454277U discloses a double-edged diamond stone carving tool, which comprises a cemented carbide tool bar and a tool bit; one end of the hard alloy cutter bar is provided with a cutter groove matched with the cutter head, and the cutter head is connected with the cutter groove through welding or brazing. However, the cutter groove for welding the cutter head in this proposal has only side surfaces and a bottom surface, and the fixing effect on the cutter head is not good, and the cutter head is easy to separate from the cutter bar as in the chinese patent with the publication number of CN 211222814U.

Therefore, how to provide a stone carving tool with good tool blank fixing effect is a technical problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a twolip carving tool to solve the problem that above-mentioned prior art exists, set up the cross-section through the tip at the base member and be trapezoidal recess, sword base both sides face respectively with the both sides wall face welded connection of recess for the increase of the welding area of sword base and base member improves the joint strength of sword base and base member, reduces the ease that the sword base breaks away from the base member.

In order to achieve the above object, the utility model provides a following scheme:

the utility model provides a twolip carving tool, including base member and sword base, the tip of base member is provided with the cross-section of following the axial excavation and is trapezoidal recess, the sword base card is put in the recess, sword base both sides face respectively with the both sides wall face welded connection of recess, the equal radial extension of cutting edge of sword base both sides the recess.

Preferably, the included angle of the opening of the two side wall surfaces of the groove is 1-20 degrees.

Preferably, a gap is provided between the knife blank and the inner bottom surface of the groove.

Preferably, the cutter blank is made of a whole diamond polycrystalline material, and the substrate is made of a hard alloy material.

Preferably, the two cutting edges are symmetrically distributed by taking the central axis of the base body as a symmetry axis.

Preferably, the angle of revolution of the cutting edge is 20 ° to 60 °.

Preferably, the two cutting edges are connected through an end edge, the end edge is perpendicular to the central axis of the base body, the end edge rotates to form the required width of the carved top surface, and the width of the end edge is 0.2mm-2 mm.

Preferably, the angle between the side surface of the end edge and the plane in which the cutting edges lie is 45 ° to 80 °.

Preferably, the total length of the base body and the knife blank after installation is 40mm-100 mm.

Preferably, the diameter of the substrate is 4mm to 10 mm.

The utility model discloses for prior art gain following technological effect:

(1) the utility model discloses a set up the recess that the cross-section is trapezoidal at the tip of base member, knife blank both sides face respectively with the both sides wall face welded connection of recess for the area of weld of knife blank and base member increases, improves the joint strength of knife blank and base member, reduces the cutter blank and breaks away from the easy degree of base member;

(2) the utility model is provided with two cutting edges which are symmetrically distributed by taking the central axis of the base body as the symmetry axis, so that the two cutting edges can both exert the cutting function, and compared with a single cutting edge, the utility model can reduce the abrasion condition of the single cutting edge and prolong the service life of the cutter;

(3) the utility model is used for the open included angle of the two side wall surfaces of the groove for installing the knife blank is 1 degree

The angle is-20 degrees, a wedge-shaped clamping structure can be formed during installation, and the fixing effect of the cutter blank is further improved;

(4) the utility model discloses be provided with the clearance between the interior bottom surface of sword blank and recess, can make the smooth chucking of sword blank target in place, avoid the base of sword blank and the interior bottom surface contact of recess to interfere the deep installation that influences the sword blank, simultaneously, can also avoid leading to the welding unstability because cross location and thermal expansion coefficient difference when the welding.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

FIG. 2 is a view taken along line M of FIG. 1;

FIG. 3 is a cross-sectional view of the clearance edge of FIG. 2;

fig. 4 is a top view of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 4 at N;

wherein, 1, a knife blank; 11. a first clearance blade; 12. a second clearance blade; 13. a first cutting edge; 14. a second cutting edge; 15. an end blade; 2. a substrate; 3. and (5) avoiding a clearance groove.

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 efforts all belong to the protection scope of the present invention.

The utility model aims at providing a twolip carving tool to solve the problem that prior art exists, set up the cross-section through the tip at the base member and be trapezoidal recess, knife blank both sides face respectively with the both sides wall face welded connection of recess for the increase of the welding area of knife blank and base member improves the joint strength of knife blank and base member, reduces the ease that the knife blank breaks away from the base member.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

As shown in fig. 1-5, the utility model provides a twolip carving tool, including base member 2 and sword base 1, base member 2 is as the handle of a knife of installation sword base 1, can install on professional equipment or instrument, and is general, and base member 2 can adopt cylinder or cuboid isotructure, and the terminal surface of the one end of not installing sword base 1 is provided with the chamfer, and the diameter/width of cylinder or cuboid structure can be between 4mm-10mm, and the total length behind the installation sword base 1 can be 40mm-100 mm. The cutter blank 1 is made of an integral diamond polycrystalline material, is integrally of a sheet structure and is provided with a cutting edge, wherein the cutting edge can comprise a cutting edge and a clearance edge, and the cutting edge is used for directly cutting a material to be carved and can comprise a first cutting edge 13 and a second cutting edge 14; the clearance edges do not cut the material to be engraved directly and may include a first clearance edge 11 and a second clearance edge 12. The first cutting edge 13 and the second cutting edge 14 respectively form a certain included angle with the central axis of the base body 2 and extend to the tip, but the first cutting edge 13 and the second cutting edge 14 do not form a sharp corner at the tip, that is, the first cutting edge 13 and the second cutting edge 14 do not directly intersect, but are connected through an end edge 15 with a certain length, that is, the first cutting edge 13, the end edge 15 and the second cutting edge 14 are connected in sequence to form a cutting edge. The first clearance edge 11 and the second clearance edge 12 also extend to the tip, but do not intersect or connect with the end edge 15, but are connected by a bevel. The end part of the base body 2 for mounting the cutter blank 1 is provided with a groove with a trapezoidal section excavated along the axial direction, the cutter blank 1 is clamped in the groove, the cutter blank 1 protrudes out of the base body 2, two side surfaces of the cutter blank 1 are respectively welded with two side wall surfaces of the groove, and vacuum welding can be adopted during welding. The cutting edges (i.e., the first cutting edge 13 and the second cutting edge 14) on both sides of the blank 1 extend radially out of the groove, and when the tool rotates, the effect of cutting or carving the stone material by the first cutting edge 13 and the second cutting edge 14 is achieved. The utility model discloses a tip at base member 2 sets up the cross-section and is trapezoidal recess, knife blank 1 both sides face respectively with the both sides wall face welded connection of recess for knife blank 1 and base member 2's welding area increase improves knife blank 1 and base member 2's joint strength, reduces knife blank 1 and breaks away from the ease of base member 2.

As shown in fig. 1, the recess for mounting the blade blank 1 comprises two side wall surfaces and a bottom surface, wherein the two side wall surfaces have an angle γ, and the angle γ is open, and γ may have a value of 1 ° to 20 °. Within this range, a wedge-shaped clamping structure can be formed when the tool blank 1 is mounted, and the effect of fixing the tool blank 1 can be further improved.

A gap is arranged between the cutter blank 1 and the inner bottom surface of the groove, the gap forms a clearance groove 3, and no other structure is arranged in the clearance groove 3. That is, when the blank 1 is mounted in the recess, there is no contact between the blank 1 and the inner bottom surface of the recess. Therefore, the cutter blank 1 can be smoothly clamped in place, the situation that the bottom edge of the cutter blank 1 is in contact interference with the inner bottom surface of the groove to affect the deep installation of the cutter blank 1 is avoided, and meanwhile, when the cutter blank 1 and the base body 2 are welded, the situation that the cutter blank 1 is positioned too much and the welding is unstable due to the fact that the cutter blank 1 and the base body 2 are different in thermal expansion coefficient can be avoided.

The cutter blank 1 can be made of an integral diamond polycrystalline material and is processed by adopting an integral material. The base body 2 can be made of hard alloy materials and provides stable support for the knife blank 1.

The first cutting edge 13 and the second cutting edge 14 are symmetrically distributed with the central axis of the base body 2 as a symmetry axis. The arrangement mode can enable the two cutting edges to play a cutting role, and compared with a single cutting edge, the wear condition of the single cutting edge can be reduced, and the service life of the cutter is prolonged.

As shown in fig. 4, the angle of revolution of the first cutting edge 13 (i.e., the angle between the first cutting edge 13 and the central axis of the base body 2) and the angle of revolution of the second cutting edge 14 (i.e., the angle between the second cutting edge 14 and the central axis of the base body 2) are respectively β, which ranges from 20 ° to 60 °.

Referring to fig. 1-2 and 4-5, the first cutting edge 13 and the second cutting edge 14 are connected by an end edge 15, all cutting edges of the first cutting edge 13, the end edge 15, the second cutting edge 14 and the like are in the same plane, the end edge 15 is perpendicular to the central axis of the substrate 2, the end edge 15 rotates to form a required width of the engraved top surface, the width of the end edge 15 is B, and the value of B ranges from 0.2mm to 2 mm.

As shown in fig. 2 to 3, the included angle between the side surface of the end edge 15 and the plane in which each cutting edge (the first cutting edge 13 and the second cutting edge 14) is located is α, and the value of α ranges from 45 ° to 80 °. This angle scope can avoid interfering when guaranteeing each blade intensity, the piece of better discharge cutting.

As shown in fig. 1, the total length of the base body 2 and the blade blank 1 after installation may be 40mm to 100 mm.

The diameter of the substrate 2 may be 4mm to 10 mm.

The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims

1. A double-edged graver, characterized in that: the cutting tool comprises a base body and tool blanks, wherein grooves which are excavated along the axial direction and have trapezoidal sections are formed in the end portions of the base body, the tool blanks are clamped in the grooves, two side faces of each tool blank are respectively in welded connection with two side wall faces of each groove, and cutting edges on two sides of each tool blank radially extend out of the grooves.

2. The double-edged graver according to claim 1, wherein: the included angle of the openings of the two side wall surfaces of the groove is 1-20 degrees.

3. The double-edged graver according to claim 2, wherein: a gap is arranged between the knife blank and the inner bottom surface of the groove.

4. A double-edged graver according to any one of claims 1 to 3, wherein: the cutter blank is made of an integral diamond polycrystalline material, and the substrate is made of a hard alloy material.

5. The double-edged graver according to claim 4, wherein: the two cutting edges are symmetrically distributed by taking the central axis of the base body as a symmetry axis.

6. The double-edged graver of claim 5, wherein: the rotation angle of the cutting edge is 20-60 degrees.

7. The double-edged graver according to claim 5, wherein: the two cutting edges are connected through end edges, the end edges are perpendicular to the central axis of the base body, the end edges rotate to form the required width of the carved top surface, and the width of the end edges is 0.2mm-2 mm.

8. The double-edged graver according to claim 7, wherein: the included angle between the side surface of the end edge and the plane where each cutting edge is located is 45-80 degrees.

9. The double-edged graver according to claim 5, wherein: the total length of the base body and the knife blank after installation is 40mm-100 mm.

10. The double-edged graver according to claim 5, wherein: the diameter of the substrate is 4mm-10 mm.