CN215657912U

CN215657912U - Forming inner hole slotting tool with multiple cutting edges

Info

Publication number: CN215657912U
Application number: CN202121999809.1U
Authority: CN
Inventors: 石朝西
Original assignee: Shenzhen Yikeli Cutting Tool Co ltd
Current assignee: Shenzhen Yikeli Cutting Tool Co ltd
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2022-01-28
Anticipated expiration: 2031-08-24

Abstract

The utility model discloses a multi-cutting-edge forming inner hole grooving cutter which comprises a blade main body and a cutting part, wherein the blade main body is of a regular prism structure, each cutting part is arranged at each side edge of the blade main body, the cutting part comprises a cutting opening, a cutting edge and a first clearance surface, the cutting opening is arranged at the side surface of the blade main body adjacent to the first clearance surface, one end of the cutting opening is intersected with the first clearance surface to form the cutting edge, a second clearance surface extending to the bottom of the blade main body is arranged at the lower end of the cutting opening, and a clearance tangent plane is arranged on the end surface of the top of the cutting part. According to the utility model, the blade main body is of the regular prism structure, and the cutting parts are arranged on the side edges of the blade main body, so that when the cutting blade is used for machining, the cutting parts can be used for machining at the same time, the machining efficiency can be effectively improved, and meanwhile, due to the arrangement of the cutting openings, scraps cut by the cutting edges can be discharged through the cutting openings, the chip removal capability is improved, and the generation of burrs is effectively avoided.

Description

Forming inner hole slotting tool with multiple cutting edges

Technical Field

The utility model relates to the technical field of multi-cutting-edge formed inner hole slotting tools, in particular to a multi-cutting-edge formed inner hole slotting tool.

Background

In the mechanical production and processing, an integral cutter is generally used, and is characterized in that a cutter handle and a cutter head are integrally formed, a cutter point of the cutter head can be provided with cutting edges in different shapes according to grooving processing under different working conditions, the cutter is longer in overall length and suitable for deep groove processing of parts, and the cutter head can be repeatedly polished.

However, when the step grooves on hardware such as shafts and discs are machined, the service life of the integral cutter is generally short, so that the machining size of a product is unstable, the cutter needs to be frequently replaced, the cost is high, the production efficiency is low, and when the production capacity of the integral cutter is too large, machining vibration is easily caused, and the quality of a machined surface is affected; therefore, a modular tool is generally used for machining currently, however, the blade of the modular tool in the prior art is generally a single-bit blade, and a workpiece rotates one circle and is cut only once, so that the machining efficiency is low; after the cutting part is damaged, the blade needs to be detached for polishing or replacement, and the blade needs to be reset after being reinstalled, so that the lathe machining is not facilitated, and the cost for frequently replacing the blade is too high; and the blade among the prior art is because its structural problem, and machining efficiency is low, and when processing, the blade is cracked easily, influences the life-span.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides the multi-cutting-edge forming inner hole grooving cutter, which is beneficial to lathe processing, and can effectively improve the production efficiency and reduce the production cost.

The technical scheme adopted by the utility model for solving the technical problem is as follows: the utility model provides a shaping hole slot cutter of many cutting edges, includes blade main part and a plurality of cutting portion of locating in the blade main part, the blade main part is regular prism structure, each cutting portion locates each side edge department of blade main part respectively, the cutting portion is including cutting mouth, cutting edge and the first face of keeping away from, the excision of blade main part side edge forms the first face of keeping away, the cutting mouth is located blade main part and the first adjacent side department of keeping away the face, and cutting mouth one end intersects with the first face of keeping away and forms the cutting edge, the cutting mouth lower extreme is equipped with the second that extends to blade main part bottom and keeps away the face of keeping away, cutting portion top end face is equipped with dodges the tangent plane, dodge the tangent plane and be connected with the first face of keeping away and cutting mouth respectively.

Furthermore, the projection surface of the blade main body is of a regular triangle structure, and the cutting parts are respectively arranged at the edges and corners of the blade main body.

Further, a fixing hole is formed in the center of the blade main body and is a counter bore.

Further, the second clearance surface is inclined towards the direction close to the fixing hole, and the inclination angle is 45 degrees.

Further, the lower end of the cutting edge is inclined by 11 degrees towards the direction close to the fixing hole.

Furthermore, one end of the avoiding tangent plane, which is far away from the cutting opening, extends to the side face of the blade main body and inclines downwards, and the inclination angle is 3 degrees.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the blade main body is of the regular prism structure, and the cutting parts are arranged on the side edges of the blade main body, so that when the inner hole is subjected to groove processing in the catalytic forming process, the cutting parts on the side edges of the blade main body can be used for processing at the same time, and compared with the prior art, the processing efficiency can be effectively improved.

2. The cutting part comprises a cutting opening, and the cutting edge is arranged at the intersection of the cutting opening and the first clearance surface, so that scraps cut by the cutting edge can be discharged through the cutting opening, the chip removal capability of the cutting part in the machining process is improved, and burrs are effectively avoided; meanwhile, the arrangement of the first clearance surface can ensure that the blade does not contact with a workpiece when being processed, and the service life of the blade is prolonged.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic structural diagram of the present embodiment;

FIG. 2 is a front view of the present embodiment;

FIG. 3 is a side view of the present embodiment;

fig. 4 is a top view of the present embodiment.

In the figure: 1. a blade body; 11. a fixing hole; 2. a cutting portion; 21. cutting a notch; 22. a cutting edge; 23. a first void-avoiding surface; 3. a second void-avoiding surface; 4. and avoiding the tangent plane.

Detailed Description

In order that the present disclosure may be more readily and clearly understood, reference is now made to the following description taken in conjunction with the accompanying drawings.

It is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like as used herein, are used in the orientations and positional relationships indicated in the drawings for the purpose of convenience and simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must be in a particular orientation, constructed and operated in a particular orientation, and therefore should not be considered limiting of the present invention. "plurality" means two or more unless otherwise specified.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

With reference to fig. 1 to 4, a multi-cutting-edge formed inner hole grooving tool includes a blade body 1 and a plurality of cutting portions 2 disposed on the blade body 1, wherein the blade body 1 has a regular prism structure, and each cutting portion 2 is disposed on each side edge of the blade body 1, so that one blade of this embodiment has a plurality of cutting portions 2, and the formed inner hole can be grooved by this embodiment, and can be cut by the plurality of cutting portions 2 at the same time, thereby effectively improving the machining efficiency, and when one cutting portion 2 is worn or damaged, the remaining cutting portions 2 can continue to perform cutting work without replacing the blade, thereby effectively reducing the production cost;

the cutting edge 22 of the embodiment is arranged at the edge of the blade body 1, so that the cutting is convenient; the cutting part 2 comprises a cutting opening 21, a cutting edge 22 and a first clearance surface 23, and the edge angle of the blade body 1 is easy to contact and collide with the plane of a workpiece during machining, so that the machining quality is easy to reduce, and a damaged tool is easy to arrange; the cutting opening 21 is formed in the side face, adjacent to the first clearance surface 23, of the blade body 1, so that the side wall of one end of the cutting opening 21 is intersected with the first clearance surface 23 to form a cutting edge 22, chips cut by the cutting edge 22 can fall along the cutting opening 21, the chip removal capacity of the groove blade in the groove body machining process is improved, burrs are effectively avoided, and the machining quality is high; the end surface of the top of the cutting part 2 is also provided with an avoiding tangent plane 4, so that the end surface of the cutting part 2 can be prevented from contacting with the side wall of the groove body during grooving, and the processing quality can be improved; the avoiding tangent plane 4 of the embodiment extends to the side surface of the blade main body 1 far away from one end of the cutting opening 21 and inclines downwards by 3 degrees, so that the avoiding tangent plane 4 of the embodiment can also be used for helping to discharge scraps, the processing quality is further improved, and the service life is prolonged.

As shown in fig. 1 and 2, the projection plane of the insert body 1 in the present embodiment is in a regular triangle structure, so that the number of the cutting portions 2 in the present embodiment is three, and the cutting portions are respectively arranged at the corners of the insert body 1, so that when one cutting portion 2 in the present embodiment is worn or damaged, the other cutting portions 2 can be used for processing, the insert does not need to be replaced, and the production cost can be reduced; the center of the blade body 1 of the embodiment is further provided with a fixing hole 11, so that the embodiment can fix the blade on the tool holder by passing a fastening screw through the fixing hole 11; wherein, the fixing hole 11 is a countersunk hole, and the countersunk head is located on the top end face of the blade body 1, so that the head of the fastening screw can be hidden in the countersunk head, the fastening screw can be prevented from influencing the processing workpiece, and the aesthetic degree can be improved.

As shown in fig. 3, the second clearance surface 3 of the present embodiment is inclined by 45 ° toward the direction close to the fixing hole 11, so as to facilitate processing and sharpening of the blade, and further ensure that the blade does not contact with a workpiece to be processed when in use, thereby improving the service life of the tool and the production efficiency;

the lower end of the cutting edge 22 of the present embodiment is inclined towards the direction close to the fixing hole 11, so that the tip of the cutting edge 22 is at the highest point, which is convenient for controlling the flowing direction of the cutting chips, so that the chips can fall out from the cutting port 21 when the tool surface of the present embodiment performs the cutting of the formed inner hole groove, thereby improving the processing precision and efficiency; the inclination angle of the cutting edge 22 of the present embodiment is 11 °, so that the cutting edge 22 has a better chip removal effect on the premise of controlling the chip discharge direction, and the service life of the cutting edge 22 can be prolonged.

The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention should not be limited thereby, and any insubstantial changes and modifications made by those skilled in the art based on the present invention are within the scope of the present invention.

Claims

1. The utility model provides a shaping hole grooving cutter of many cutting edges, includes blade main part and a plurality of cutting portion of locating on the blade main part, its characterized in that: the blade main part is regular prism structure, each cutting portion locates each side edge of blade main part department respectively, the cutting portion is including cutting mouth, cutting edge and the first face of keeping away from, blade main part side edge excision forms the first face of keeping away from, the cutting mouth is located blade main part and the adjacent side department of the first face of keeping away from, and cutting mouth one end intersects with the first face of keeping away and forms the cutting edge, the cutting mouth lower extreme is equipped with the second face of keeping away that extends to blade main part bottom, cutting portion top end face is equipped with dodges the tangent plane, dodge the tangent plane and be connected with first face of keeping away and cutting mouth respectively.

2. A multi-cutting edge profiled bore grooving tool as claimed in claim 1 wherein: the projection surface of the blade main body is of a regular triangle structure, and the cutting parts are respectively arranged at edges and corners of the blade main body.

3. A multi-cutting edge profiled bore grooving tool as claimed in claim 1 wherein: the center of the blade main body is provided with a fixing hole which is a counter bore.

4. A multi-cutting edge profiled bore grooving tool as claimed in claim 3 wherein: the second clearance surface inclines towards the direction close to the fixed hole, and the inclination angle is 45 degrees.

5. A multi-cutting edge profiled bore grooving tool as claimed in claim 3 wherein: the lower end of the cutting edge inclines 11 degrees towards the direction close to the fixing hole.

6. A multi-cutting edge profiled bore grooving tool as claimed in claim 1 wherein: one end of the avoiding tangent plane, which is far away from the cutting opening, extends to the side face of the blade main body and inclines downwards, and the inclination angle is 3 degrees.