CN210969440U

CN210969440U - Tool bit and cutting knife

Info

Publication number: CN210969440U
Application number: CN201921665289.3U
Authority: CN
Inventors: 晋爱民
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-07-10
Anticipated expiration: 2029-09-30

Abstract

The utility model relates to a tool bit and cutting knife relates to cutting means technical field to solve among the prior art when the tool bit uses and be cut the technical problem that body area of contact leads to the frictional force big greatly, this tool bit includes the tool bit body, the tool bit body has the sword end and is used for the link that links to each other with the base member, the section shape of tool bit body is isosceles trapezoid, isosceles trapezoid's upper base is the link, isosceles trapezoid's going to the bottom is the sword end. The utility model discloses an in-process of tool bit and cutting knife at the cutting object, the position of tool bit and object contact only has the sword end, all the other positions of tool bit body can not with wait the cutter contact to make the tool bit body less with the area by the cutter contact, thereby convenient heat dissipation gets rid of the piece, makes the smooth surface of object surface of cutting, and the size is accurate, and because area of contact is littleer, so wearing and tearing still less, the life of tool bit to the extension, reduction use cost.

Description

Tool bit and cutting knife

Technical Field

The utility model relates to a cutting means technical field, concretely relates to tool bit and cutting knife.

Background

Cutting tools, such as marble, granite, concrete, asphalt, ceramics, glass, jewelry, and semiconductors, are widely used to cut and process materials. The diamond saw blade mainly comprises a base body and a cutter head, the base body is a main supporting part connected with the cutter head, and the cutter head and the cutter are working main bodies of the diamond saw blade and play a role in cutting in the using process. The cutting head and the cutting knife are formed by mixing, pressing, die filling and sintering diamond and metal powder, the cutting head is generally fixed on the substrate in a welding mode, and when the cutting head works, the cutting head can be continuously consumed in use, but the substrate cannot.

The present tool bit that is used for saw cutting the stone material uses rectangle plane or arcwall face and rock contact in work, and its radial cross section generally is the rectangle, and when saw cutting, both sides and stone material plane contact cut, but because area of contact is big, the frictional force of production is big, makes easy wearing and tearing of tool bit both sides and be unfavorable for cooling and the chip removal of cutting in-process stone material, and the power that makes consumption in the course of the work is great, reduces cutting efficiency, reduces the life of tool bit. When cutting stone, the stone may be burned due to the large heat and poor heat dissipation effect, so that the machined surface is rough, and even the precision of the cutting dimension is affected.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tool bit and cutting knife to when solving among the prior art tool bit use with cut the technical problem that the body area of contact leads to frictional force big greatly.

The utility model discloses a following technical scheme realizes: a cutter head comprises a cutter head body, wherein the cutter head body is provided with a cutter edge end and a connecting end used for being connected with a base body, the section of the cutter head body is in an isosceles trapezoid shape, the upper bottom of the isosceles trapezoid is the connecting end, and the lower bottom of the isosceles trapezoid is the cutter edge end.

Further, in order to better realize the utility model discloses, the link be equipped with be used for with the recess that the base member is connected.

Further, in order to better realize the utility model discloses, the recess is followed the annular direction setting of tool bit.

Further, in order to better realize the utility model discloses, isosceles trapezoid's the ratio of going to the bottom and the upper base is A, 1.5 is less than or equal to A and is less than or equal to 2.

Further, in order to better realize the utility model discloses, isosceles trapezoid's height is B, and 6mm is less than or equal to B and is less than or equal to 20 mm.

A cutting knife comprises a base body and the cutting head, wherein a protrusion is arranged on the base body, and the cutting head is fixedly connected to the base body through the matching of a groove and the protrusion.

Further, for better realizing the utility model discloses, the base member is the circular disk, bellied quantity is a plurality of, and is a plurality of the arch is in evenly distributed on the circumference lateral wall of base member, install in the arch the tool bit.

Further, in order to better realize the utility model discloses, the tool bit is fan-shaped plane platelike structure, the link does the inner arc side of tool bit, the sword end does the outer arc side of tool bit.

Further, for better realizing the utility model discloses, the base member is hollow cylinder bellied quantity is a plurality of, and is a plurality of the arch with hollow cylinder's axis is central be circumference array distribution in on hollow cylinder's the terminal surface, install in the arch the tool bit.

Further, in order to better realize the utility model discloses, the tool bit is arc platelike structure, the link does the one end of tool bit, the sword tip does the other end of tool bit, and the tool bit with the base member axial is the same.

The utility model discloses compare in prior art and have following beneficial effect:

(1) the utility model discloses a tool bit sets up to isosceles trapezoid through the section with the tool bit body, makes the cutting edge end width of tool bit body be greater than the link width of being connected with the base member. Thereby make the tool bit at the in-process of cutting the stone material, the position of tool bit and object contact only has the sword end, all the other positions of tool bit body can not with waiting the thing contact, so that the area of tool bit body and quilt thing contact is littleer, thereby conveniently dispel the heat, get rid of the piece, make the smooth surface of the object of cutting, the size is accurate, thereby improve and saw cut efficiency and quality, and because area of contact is littleer, so wearing and tearing are still less, the life of tool bit obtains the extension, reduce use cost. And the tool bit body of isosceles trapezoid structure has the advantage that the cutting is steady, the sharpness is good to can effectively reduce the tool bit resistance, reduce power input, make the stone material yield of cutting out high.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, 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 reference view of the use of the tool bit of the present invention;

fig. 2 is a schematic structural view of a cutting knife in embodiment 3 of the present invention;

fig. 3 is a schematic structural view of a cutter head according to embodiment 3 of the present invention;

fig. 4 is a schematic structural view of a cutting knife in embodiment 4 of the present invention;

FIG. 5 is a partial enlarged view of area A in FIG. 4;

fig. 6 is a schematic structural view of a cutter head according to embodiment 4 of the present invention.

In the figure: 1-a tool bit body; 11-groove teeth; 12-a groove; 13-a connection end; 14-a blade end; 2-a substrate; 21-bulge; 22-a hollow cylinder; 23-circular disk; 24-chip removal holes; 25-mounting holes; 3-stone material.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Example 1:

the tool bit provided by the embodiment comprises a tool bit body 1, and as shown in fig. 1 to 6, the tool bit body 1 is provided with a blade end 14 and a connecting end 13 for connecting with the base body 2. The cutter head is mainly used for cutting the stone 3.

As shown in fig. 1, the cross-sectional shape of the tool bit body 1 is an isosceles trapezoid, the upper base of the isosceles trapezoid is a connecting end 13, and the lower base of the isosceles trapezoid is a blade end 14. When the utility model discloses a tool bit is when cutting stone material 3, the isosceles trapezoid of tool bit body 1 the long limit of going to the bottom (also be sword tip 14) and stone material 3 contact, and tool bit body 1's both sides face contactless stone material 3 to reduce the frictional force between tool bit body 1 and the stone material 3, reduce the wearing and tearing of tool bit body 1 both sides face. And the clearance that exists between 1 both sides face of tool bit body and the stone material 3 makes the heat that produces in the cutting process can in time spill, prevents to burn stone material 3 and causes the cutting surface smoothness unqualified to guarantee by the smoothness of cutting stone material 3 surface, the accuracy of cutting size. In addition, the stone chips generated in the cutting process can be timely discharged through the gaps between the two side surfaces of the tool bit body 1 and the stone 3, the smooth proceeding of the cutting process is guaranteed, and the cutting efficiency is improved. Furthermore, when the tool bit body 1 is used for a long time, the blade end 14 of the tool bit body 1 is worn to a certain extent, but other parts of the tool bit are not worn, so that the service life of the tool bit is prolonged. Consequently, the tool bit of isosceles trapezoid structure can improve the life of cutting efficiency and tool bit on 3 size accuracy height, the surface quality of the stone material of guaranteeing to cut out levels, smooth basis.

As an optional implementation mode, the ratio of the lower bottom to the upper bottom of the isosceles trapezoid is A, and A is more than or equal to 1.5 and less than or equal to 2. Namely, the width ratio of the blade end 14 of the tool bit body 1 to the connecting end 13 of the tool bit body 1 is 1.5-2.

As an optional embodiment, the height of the isosceles trapezoid is B, and B is more than or equal to 6mm and less than or equal to 20 mm. Namely, the height from the blade end 14 of the tool bit body 1 to the connecting end 13 is 6-20 mm.

As an optional implementation mode, uniformly distributed diamond particles are added into the tool bit body 1 to form the diamond tool bit, and the diamond tool bit is formed by cold pressing the diamond tool bit into a diamond blank through a tool bit die and then sintering the diamond blank through hot-pressing sintering molding. The diamond has higher hardness, so that the diamond is added into the tool bit to improve the wear resistance and prolong the service life.

Example 2:

this embodiment is a specific embodiment of embodiment 1, and as shown in fig. 1 to 2, the connecting end 13 of the bit body 1 is provided with a groove 12 for connecting with the base body 2. In the process of cutting and rolling, the cutter head is easy to fall off due to high-speed, vibrating and high-temperature rolling environment. Connecting end 13 that links to each other with base member 2 with tool bit body 1 in this embodiment is equipped with recess 12 to with base member 2 welding, make the welding of tool bit and base member 2 more stable, be difficult to take place to rock and be difficult to the vibration and drop when using, increased the saw bit and at the stability of during operation, improved cutting efficiency, reduced manufacturing cost.

As an alternative embodiment, the groove 12 is arranged in the circumferential direction of the cutter head body 1. The two sides of the groove 12 are provided with groove teeth 11, and when the groove 12 is matched and welded with the base body 2, the groove teeth 11 are abutted on the base body 2. The connecting portion parcel of base member 2 is connected inside recess 12 to the recess 12 that the annular direction set up, makes tool bit body 1 when cutting stone material 3, guarantees that base member 2 does not contact with stone material 3 to protection base member 2 does not receive wearing and tearing.

Example 3:

the embodiment provides a cutting knife, as shown in fig. 2 to 3, comprising a base body 2 and the cutting head of the above embodiment, wherein the base body 2 is provided with a protrusion 21, and the cutting head is fixedly connected to the base body 2 through the matching of the groove 12 and the protrusion 21.

As a specific embodiment of this embodiment, the base body 2 is a circular disk 23, the center of the circular disk 23 is provided with a mounting hole 25, the number of the protrusions 21 is plural, the plural protrusions 21 are uniformly distributed on the circumferential side wall of the base body 2, and the protrusions 21 are matched with the grooves 12 of the tool bit to mount the tool bit. The two cutter heads are arranged at intervals, so that the scraps generated by the cutter heads in the cutting process can be discharged in time. A plurality of projections 21 are each connected to one of the above-mentioned cutter heads. The upper outer edge of the circular disc 23 is provided with a plurality of chip removal holes 24, and one chip removal hole 24 is arranged between two adjacent cutter heads. In this case, the cutter head and the circular disk 23 together constitute a saw blade.

As a preferred embodiment of this embodiment, as shown in fig. 3, the cutting head in this embodiment has a fan-shaped planar plate-like structure, the connecting end 13 is the inner arc side of the cutting head, and the cutting edge end 14 is the outer arc side of the cutting head. As shown in fig. 2, the cutting head of the saw blade is arranged along the radial direction of the circular disc 23, and the cutting surface formed by the cutting edge end 14 of the cutting head is an outer arc surface. The protrusion 21 is radially provided on the circumferential sidewall of the circular plate 23, the protrusion 21 forms an annular step with the circumferential sidewall of the circular plate 23, and the groove teeth 11 of the groove 12 abut on the annular step of the circular plate 23. So that the recess 12 of the cutter head wraps the protrusion 21 of the circular disc 23 to protect the circular disc 23.

Example 4:

as another specific implementation manner of embodiment 3, as shown in fig. 4 to 6, the base body 2 is a hollow cylinder 22, a plurality of protrusions 21 are disposed on an end surface of the hollow cylinder 22, the plurality of protrusions 21 are circumferentially distributed on the end surface of the hollow cylinder 22 by taking a central axis of the hollow cylinder 22 as a center, and the protrusions 21 are used for mounting the tool bit. The two cutter heads are arranged at intervals, so that the scraps generated by the cutter heads in the cutting process can be discharged in time. Each cutting head is in mating connection with one of the projections 21. At this point, the tip forms a drill with the body of the hollow cylinder 22.

As a best mode of the present embodiment, as shown in fig. 6, the cutter head is an arc-shaped plate-like structure, the connecting end 13 is one end of the cutter head, the blade end 14 is the other end of the cutter head, and the axial direction of the cutter head is the same as the axial direction of the base body 2. The connecting end 13 and the blade end 14 of the cutter head are both planar. The protrusion 21 and the end surface of the hollow cylinder 22 form an annular step, and the groove teeth 11 of the groove 12 abut against the annular step of the hollow cylinder 22. So that the groove 12 of the cutter head wraps the bulge 21 of the hollow cylinder 22 inside, and the hollow cylinder 22 is protected.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The cutter head is characterized by comprising a cutter head body, wherein the cutter head body (1) is provided with a cutter edge end (14) and a connecting end (13) connected with a base body (2), the section of the cutter head body (1) is in an isosceles trapezoid shape, the connecting end (13) is arranged at the upper bottom of the isosceles trapezoid, and the cutter edge end (14) is arranged at the lower bottom of the isosceles trapezoid.

2. A cutter head according to claim 1, wherein the connecting end (13) is provided with a groove (12) for connection with the basic body (2).

3. Cutter head according to claim 2, wherein the groove (12) is provided in the circumferential direction of the cutter head (1).

4. A cutter head according to any one of claims 1 to 3, wherein the ratio of the lower base to the upper base of the isosceles trapezoid is A, 1.5. ltoreq. A.ltoreq.2.

5. The cutter head according to claim 4, wherein the height of the isosceles trapezoid is B, and B is 6mm or more and 20mm or less.

6. A cutting burr, characterized in that, including base member (2) and the tool bit of claim 3, be equipped with arch (21) on base member (2), tool bit (1) through the recess (12) with the cooperation of arch (21) and fixed connection in on base member (2).

7. A cutting burr according to claim 6, characterized in that the basic body (2) is a circular disc (23), that the number of protrusions (21) is a plurality, that a plurality of protrusions (21) are evenly distributed over the circumferential side wall of the basic body (2), and that the cutting head (1) is mounted on the protrusions (21).

8. A cutting knife according to claim 7, characterized in that the cutting head (1) is of a fan-shaped plane plate-like structure, the connecting end (13) being the inner arc side of the cutting head (1) and the cutting edge end (14) being the outer arc side of the cutting head (1).

9. A cutting burr according to claim 6, characterized in that the basic body (2) is a hollow cylinder (22) and that the number of protrusions (21) is a plurality, and that the plurality of protrusions (21) are distributed on the end surface of the hollow cylinder (22) in a circumferential array with the central axis of the hollow cylinder (22) as the center, and that the cutting head (1) is mounted on the protrusions (21).

10. A cutting burr according to claim 9, characterised in that the cutting head (1) is of an arc-shaped plate-like configuration, that the connecting end (13) is one end of the cutting head (1), that the cutting edge end (14) is the other end of the cutting head (1), and that the cutting head (1) is axially identical to the basic body (2).