CN216370196U

CN216370196U - Cutting tool

Info

Publication number: CN216370196U
Application number: CN202122372701.6U
Authority: CN
Inventors: 邢钰宾; 周理根; 张俊青
Original assignee: Zhengzhou Diamond Precision Manufacturing Co Ltd
Current assignee: Zhengzhou Diamond Precision Manufacturing Co Ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-04-26
Anticipated expiration: 2031-09-29

Abstract

The utility model belongs to the field of machining and manufacturing, and particularly relates to a cutter, which comprises a conical rod and a cutting head, wherein the conical rod and the cutting head extend along the left and right directions, the conical rod is provided with a through hole and a screw, the through hole and the screw extend along the left and right directions, one end of the conical rod, which is close to the cutting head, is provided with a flaring groove communicated with the through hole, the cutting head is provided with a connecting raised head which is in plug fit with the flaring groove, the connecting raised head is provided with a thread groove in threaded fit with the screw, the head of the screw is provided with a cutting plane, one end of the conical rod, which is connected with a lathe, is provided with a positioning groove communicated with the through hole, the shape and the size of the positioning groove are matched with the shape and the size of the head of the screw, the screw enters from one end of the conical rod, and when the cutter is used, the screw is fixed, the cutting head and the conical rod are fixed by screwing the cutting head through the threads, and the characteristics of convenience in installation and processing are realized.

Description

Cutting tool

Technical Field

The utility model belongs to the field of machining and manufacturing, and particularly relates to a cutter.

Background

In the existing stage, two connection modes are adopted for a cutting head and a conical rod in a processing tool, wherein one mode is that a concave cutting platform of the cutting head is assembled with a convex conical rod, a concave cutting platform of the cutting head is matched and fixed with a convex cutting platform of the conical rod to prevent the cutting head from rotating, and then the cutting head is screwed off and fixed by a screw from the direction of the cutting head; the other is to install a screw from one end of the taper rod to connect with the cutting head, such as an HSK tool shank disclosed in application No. 202020534281X, which can be quickly replaced and has high positioning accuracy. The cutting head is arranged in the groove, the two modes are required to be processed to form a cutting plane, the processing is time-consuming and labor-consuming, the difficulty is high, and the problems of narrow space and inconvenient operation exist when the cutter handle with a certain length is rotated to assemble and disassemble the cutting head.

SUMMERY OF THE UTILITY MODEL

The utility model provides a cutter, which aims to solve the problem that a cutting head is inconvenient to assemble and disassemble in the prior art.

The cutter adopts the following technical scheme: a cutter comprises a conical rod and a cutting head, wherein the conical rod and the cutting head extend in the left-right direction, the conical rod is provided with a through hole extending in the left-right direction, and a screw is fixedly arranged in the through hole, one end, close to the cutting head, of the conical rod is provided with a flaring groove communicated with the through hole, the cutting head is provided with a connecting raised head in plug fit with the flaring groove, the connecting raised head is provided with a thread groove in threaded fit with the screw, the head of the screw is provided with a cutting plane, one end, connected with a lathe, of the conical rod is provided with a positioning groove communicated with the through hole, and the shape and the size of the positioning groove are matched with the shape and the size of the head of the screw.

As an improvement, the connecting raised head is in a frustum shape, and the groove wall of the flaring groove is a conical ring surface in clearance fit with the connecting boss.

As an improvement, the included angle between the conical surface of the connecting raised head and the central axis is 3-10 degrees.

As an improvement, the taper rod is sequentially provided with a first cylindrical part, a second cylindrical part, a tapered part and a lathe connecting part along the direction far away from the cutting head.

As a refinement, the first cylindrical portion has a smaller radial dimension than the second cylindrical portion.

As an improvement, an end cover used for preventing the screw from falling is arranged at the position, close to the notch of the positioning groove, on the taper rod.

As a refinement, a plurality of PCD inserts are provided on the cutting head.

The utility model has the beneficial effects that:

the utility model provides a cutter, which comprises a conical rod and a cutting head, wherein the conical rod and the cutting head extend along the left and right directions, the conical rod is provided with a through hole and a screw, the through hole and the screw extend along the left and right directions, one end of the conical rod, which is close to the cutting head, is provided with a flaring groove communicated with the through hole, the cutting head is provided with a connecting raised head which is in plug fit with the flaring groove, the connecting raised head is provided with a thread groove in threaded fit with the screw, the head of the screw is provided with a cutting plane, one end of the conical rod, which is connected with a lathe, is provided with a positioning groove communicated with the through hole, the shape and the size of the positioning groove are matched with the shape and the size of the head of the screw, the screw enters from one end of the conical rod, when the cutter is used, the screw is fixed, and the cutting head and the conical rod are fixed by screwing the cutting head through the threads, so that the characteristics of convenience and rapidness in installation and convenience in processing are realized.

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, 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 schematic view of an embodiment of a cutting tool of the present invention;

fig. 2 is a schematic view of an embodiment of a cutting head of a tool of the present invention;

FIG. 3 is a schematic view of an embodiment of a tapered rod of a cutting tool according to the present invention;

FIG. 4 is a schematic view of an embodiment of a screw of a tool of the present invention;

FIG. 5 is a left side view of FIG. 4;

reference numerals:

1. cutting head, 11, coupling boss, 12, thread groove, 2, taper rod, 21, first column portion, 22, second column portion, 23, taper portion, 24, lathe coupling portion, 25, cavity, 3, screw, 31, cutting plane, 4, through hole, 5, flared groove, 6, positioning groove, 7, end cap.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms than those herein described and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the utility model and, therefore, the utility model is not to be limited to the embodiments set forth herein.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The utility model relates to an embodiment of a tool. As shown in fig. 1 to 5, a tool comprises a conical rod 2 extending in the left-right direction and a cutting head 1, wherein the conical rod 2 is provided with a through hole 4 extending in the left-right direction and a screw 3 fixedly arranged in the through hole 4, one end of the conical rod 2 close to the cutting head 1 is provided with a flaring groove 5 communicated with the through hole 4, the cutting head 1 is provided with a connecting raised head 11 in plug fit with the flaring groove 5, the connecting raised head 11 is provided with a thread groove 12 in thread fit with the screw 3, the connecting raised head 11 and the flaring groove 5 do not need to be cut and fixed with a platform, and the processing difficulty is reduced. The head of the screw 3 is provided with a tangent plane 31, one end of the taper rod 2 connected with the lathe is provided with a positioning groove 6 communicated with the through hole 4, and the shape and the size of the positioning groove 6 are matched with those of the head of the screw 3. Specifically, the radial dimension of the positioning groove 6 is larger than that of the through hole 4, and when the screw 3 is inserted into the through hole 4 through the cavity 25 of the lathe connecting part 24 and the positioning groove 6 in sequence, the head of the screw 3 is stopped in the positioning groove 6. The screw 3 is fixed in the conical rod 2 by the cutting platform (i.e. the head of the screw 3 with the cutting plane 31), and the cutting head 1 is matched with the conical rod 2 by the rotation of the screw threads.

In this embodiment, the connecting raised head 11 is in a frustum shape, the wall of the flared groove 5 is a conical ring surface in clearance fit with the connecting boss, specifically, the included angle between the conical surface of the connecting raised head 11 and the central axis is 3-10 degrees, in this embodiment, 5 degrees, and the conical surface fit mode is adopted, so that the tool changing speed is high, and the tool changing device is economical and practical.

Compared with the similar products in the prior art, the tool has the characteristics of replaceability, simple structure, low manufacturing cost and the like, and has higher efficiency in finish machining and finish machining, and the advantages are not possessed by the similar machining tools.

In the embodiment, the taper rod 2 sequentially comprises a first cylindrical part 21, a second cylindrical part 22, a tapered part 23 and a lathe connecting part 24 along the direction far away from the cutting head 1, the radius of the first cylindrical part 21 is smaller than that of the second cylindrical part 22, the diameter D3 of the first cylindrical part 21, the diameter D2 of the second cylindrical part 22 and the diameter D1 of the cutting head 1 are sequentially increased, and the taper rod 2 is composed of a multi-section structure, so that on one hand, the length of the taper rod 2 can be increased, and the machining requirements are met; on the other hand, the size of the taper rod 22 can be smoothly changed.

As a modification, the conical rod 2 is provided with an end cap 7 for preventing the screw 3 from falling at a position close to the notch of the positioning groove 6, specifically, the lathe connecting part 24 is provided with a cavity 25, the radial dimension of the cavity 25 is larger than that of the positioning groove 6, and the end cap 7 is in threaded connection with the inner wall of the cavity 25.

As an improvement, the cutting head 1 is provided with a plurality of PCD blades, so that the cutter has the characteristics of high processing efficiency, long service life and good processing surface quality.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A cutter comprises a conical rod and a cutting head, wherein the conical rod and the cutting head extend along the left-right direction, the conical rod is provided with a through hole extending along the left-right direction, and a screw is fixedly arranged in the through hole, one end, close to the cutting head, of the conical rod is provided with a flaring groove communicated with the through hole, the cutting head is provided with a connecting raised head which is matched with the flaring groove in an inserting mode, the connecting raised head is provided with a thread groove matched with the screw in a threaded mode, the head of the screw is provided with a cutting plane, one end, connected with a lathe, of the conical rod is provided with a positioning groove communicated with the through hole, and the shape and the size of the positioning groove are matched with those of the head of the screw.

2. The tool as set forth in claim 1, wherein said coupling projection is frustoconical and the walls of said flared pocket are conical ring surfaces in clearance fit with said coupling boss.

3. The tool as set forth in claim 2, wherein the angle between the conical surface of the coupling projection and the central axis is between 3 ° and 10 °.

4. A tool as claimed in claim 1, wherein the tapered shank is, in order in a direction away from the cutting head, a first cylindrical portion, a second cylindrical portion, a tapered portion, and a lathe coupling portion.

5. The tool according to claim 4, wherein the first cylindrical portion has a smaller radial dimension than the second cylindrical portion.

6. The tool as set forth in claim 1, wherein said tapered rod is provided with an end cap for preventing said screw from falling off at a position adjacent to a notch of said positioning groove.

7. A tool as claimed in any one of claims 1 to 6, wherein a plurality of PCD inserts are provided on the cutting head.