CN216801833U

CN216801833U - Center drill cutter bar

Info

Publication number: CN216801833U
Application number: CN202220046809.8U
Authority: CN
Inventors: 顾建佳; 张国良
Original assignee: Jiangsu World High Tech Agricultural Equipment Co Ltd
Current assignee: Jiangsu World High Tech Agricultural Equipment Co Ltd
Priority date: 2022-01-10
Filing date: 2022-01-10
Publication date: 2022-06-24
Anticipated expiration: 2032-01-10

Abstract

The utility model relates to the technical field of numerical control lathes, in particular to a center drill cutter bar which comprises a cutter bar and a cutter head, wherein the cutter head is arranged at one end of the cutter bar, an arc groove is formed in the side surface of the cutter bar and used for installing a center drill, and the radian of the arc groove is consistent with the excircle of the center drill.

Description

Center drill cutter bar

Technical Field

The utility model relates to the technical field of numerical control lathes, in particular to a center drill cutter bar.

Background

The center drill and the twist drill cutter bar in the market are generally not suitable for being used on a numerical control lathe, most of the center drill needs to be adjusted in height by adding gaskets with different thicknesses, the operation is inconvenient, the requirement on the experience of workers is high, the center drill can occupy one cutter position when the cutter rest is installed, when a large number of machining cutters are arranged, the cutter position is possibly not arranged, the problem of tool changing is needed, the cutter changing needs time, and the machining efficiency is invisibly reduced; in addition, the center positioning of the existing installation and processing modes is not accurate enough, and the processing precision is not high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a center drill cutter rod to solve the problems of low machining efficiency and low precision of the center drill cutter rod in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a center bores cutter arbor, includes cutter arbor and tool bit, the tool bit sets up the one end at the cutter arbor, the side of cutter arbor is provided with the circular arc recess, the circular arc recess is used for installing the center and bores, the radian and the center of circular arc recess bore the excircle unanimity.

Preferably, the front end of the cutter rod is fixedly provided with a cutter head through a cutter head fixing screw.

Preferably, the center drill is fixed and pressed on the cutter rod through a cutter rest screw.

Compared with the prior art, the utility model has the beneficial effects that: the center drill has the advantages that the structure is simple, the manufacture is convenient, the installation is convenient, the center height of the center drill can be kept consistent with the center height of a lathe, the positioning precision is higher, and the service life of the center drill is longer; the tool does not need to be changed, the processing time is saved, and the production efficiency is improved.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

In the figure: 1 cutter arbor, 2 tool bits, 3 circular arc recesses.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: the utility model provides a center bores cutter arbor, includes cutter arbor 1 and tool bit 2, and tool bit 2 passes through tool bit set screw and installs the front end at cutter arbor 1, and the side of cutter arbor 1 is provided with circular arc recess 3, and circular arc recess 3 is used for installing the center and bores, and the radian of circular arc recess 3 is unanimous with the center and bores the excircle, and the center is bored and is installed and compress tightly in this circular arc recess 3 and through knife rest screw fixation. Concretely, circular arc recess 3 has been processed out to current cutter arbor 1 in the market, current cutter arbor 1 all is unanimous with lathe center height, so as to install cutter arbor 1 on numerical control lathe's knife rest, with knife rest screw fixation, place the center drill in circular arc recess 3, compress tightly with another knife rest screw fixation, the center height of center drill just keeps unanimous basically with the center height of lathe, the center high accuracy of center drill keeps about 0.02MM, can improve the life of center drill, the installation of center drill does not occupy the tool position in addition, need not the tool changing, and machining efficiency is improved.

The specific processing process of the cutter bar 1 is as follows: the method comprises the steps of selecting an excircle positive cutter bar 1 with the height consistent with the center height of a lathe, fixing and pressing a cutter frame of the lathe, selecting a milling cutter with the size consistent with the excircle of a center drill, for example, the excircle of the center drill of A4 is 12MM, selecting a 12MM milling cutter, putting the tail part of the milling cutter into a lathe chuck for correction and pressing, turning a lathe spindle anticlockwise, enabling the spindle to rotate relatively, enabling the cutter frame and the spindle to do feed motion in the Z direction, milling an arc groove 3 on the cutter bar 1, after machining is completed, putting the center drill, fixing and pressing, and enabling the center height precision of the center drill to be 0.02 MM.

The application provides a center bores the cutter arbor, makes a piston rod class part that a center hole was beaten at both ends, has saved three steps of moving back fast, tool changing and quick feed, and the processing time about can saving 30 seconds than ordinary center drill anchor, and is same because the center that this application provided bores the cutter arbor center positioning accuracy height, and the life that the center bored will be than general 5 times long.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a center bores cutter arbor, includes cutter arbor (1) and tool bit (2), tool bit (2) set up the one end at cutter arbor (1), its characterized in that: the side of cutter arbor (1) is provided with circular arc recess (3), circular arc recess (3) are used for installing the center and bore, the radian and the center of circular arc recess (3) bore the excircle unanimously.

2. The center drill rod as claimed in claim 1, wherein: the front end of the cutter bar (1) is fixedly provided with a cutter head (2) through a cutter head fixing screw.

3. The center drill rod as claimed in claim 1, wherein: the center drill is fixedly pressed on the cutter bar (1) through a cutter rest screw.