CN220127685U

CN220127685U - Detachable back milling cutter

Info

Publication number: CN220127685U
Application number: CN202321727868.2U
Authority: CN
Inventors: 瞿刚
Original assignee: Mianyang Jingrui Numerical Control Tool Manufacturing Co ltd
Current assignee: Mianyang Jingrui Numerical Control Tool Manufacturing Co ltd
Priority date: 2023-07-04
Filing date: 2023-07-04
Publication date: 2023-12-05
Anticipated expiration: 2033-07-04

Abstract

The utility model provides a detachable back milling cutter, comprising: the center position of the cutterhead is vertically provided with a cutter bar, the front end of the cutter bar is vertically provided with a positioning plate, the positioning plate is of a polygonal structure, the top surface of the cutterhead is provided with a positioning counter bore matched with the positioning plate, the bottom surface of the cutterhead is provided with at least three screws in a penetrating way, and the front sections of the screws are connected with the positioning plate. A plurality of chip grooves are formed in the circumferential array of the cutterhead, and detachable blades are arranged between the outer side wall of the cutterhead and the adjacent chip grooves. The manufacturing and using cost of the cutter can be effectively reduced.

Description

Detachable back milling cutter

Technical Field

The utility model belongs to the technical field of machining tools, and particularly relates to a detachable back milling cutter.

Background

The machining industry, especially the lathe manufacturing industry, the cutter that is commonly used to the back of processing lathe guide rail or the bolt groove back adopts welded structure to make almost, because the particularity of cutter form structure, there is the material loss big in the cutter manufacturing process, and the process allowance is many, leads to manufacturing cost high, and repair is difficult after the cutter tooth damages. Damage to one tooth typically results in a reduction in the cutting performance of the cutterhead and even failure to use it. When the cutter head is used under the condition, the cutter head can only be scrapped or only be used with a marginal lack of teeth, if the cutter head is scrapped directly, the use cost of the cutter head is increased when a new cutter is replaced, and if the cutter head is used under the condition of lack of teeth, the processing quality is influenced.

Disclosure of Invention

In order to solve the defects in the prior art, the utility model provides a detachable back milling cutter, which can effectively reduce the manufacturing and using costs of the cutter.

In order to achieve the object of the utility model, the following scheme is adopted:

a removable back milling cutter comprising: the center position of the cutterhead is vertically provided with a cutter bar, the front end of the cutter bar is vertically provided with a positioning plate, the positioning plate is of a polygonal structure, the top surface of the cutterhead is provided with a positioning counter bore matched with the positioning plate, the bottom surface of the cutterhead is provided with at least three screws in a penetrating way, and the front sections of the screws are connected with the positioning plate.

A plurality of chip grooves are formed in the circumferential array of the cutterhead, and detachable blades are arranged between the outer side wall of the cutterhead and the adjacent chip grooves.

Further, the cutting edge of the insert is located within the junk slots.

Further, the end face of the positioning plate is provided with a positioning round rod, and the positioning round rod coaxially penetrates through the cutterhead.

Further, the top surface of the head of the screw is positioned in the bottom of the cutterhead.

The utility model has the beneficial effects that: the back milling cutter is designed into two independent structures of a cutter bar and a cutter head, wherein the cutter head can be made of plates or pipes with larger diameters, and the cutter bar can be made of materials with thinner diameters, so that the purposes of saving materials and reducing machining allowance are achieved, and finally the purpose of reducing manufacturing cost is achieved; when some of the blades are damaged, the machining quality can be guaranteed by replacing the blades, and the whole replacement is avoided, so that the use cost of the cutter is effectively reduced.

Drawings

The drawings described herein are for illustration of selected embodiments only and not all possible implementations, and are not intended to limit the scope of the utility model.

Fig. 1 shows a schematic overall structure of the present utility model.

Fig. 2 shows a schematic view of the structure of the cutter bar.

The marks in the figure: cutter head-1, chip groove-11, cutter bar-2, locating plate-21, screw-3, blade-4.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the following detailed description of the embodiments of the present utility model will be given with reference to the accompanying drawings, but the described embodiments of the present utility model are some, but not all embodiments of the present utility model.

As shown in fig. 1 and 2, a detachable back milling cutter includes: the cutter head 1, the central point of cutter head 1 puts and is equipped with cutter arbor 2 perpendicularly, and cutter arbor 2 front end is equipped with locating plate 21 perpendicularly, and locating plate 21 is polygonal structure, like trilateral, quadrangle, pentagon or hexagon, and the locating counter bore that matches with locating plate 21 has been seted up to the top surface of cutter head 1 to guarantee that circumference relative position between cutter head 1 and the cutter arbor 2 is stable. At least three screws 3 are arranged on the bottom surface of the cutter head 1 in a penetrating way, the front sections of the screws 3 are connected to the positioning plate 21, through the structural design, the back milling cutter forms two independent structures of the cutter bar 2 and the cutter head 1, wherein the cutter head 1 can be made of plates or pipes with larger diameters, the cutter bar 2 can be made of materials with thinner diameters, so that the purposes of saving materials and reducing machining allowance are achieved, and finally the purpose of reducing manufacturing cost is achieved. The circumference array of blade disc 1 has seted up many junk slots 11, all is equipped with detachable blade 4 between the lateral wall of blade disc 1 corresponds adjacent junk slot 11, and specific mode that can adopt screw connection carries out fixed mounting to blade 4. When some of the blades 4 are damaged, the machining quality can be ensured by only replacing the corresponding blades 4, and the whole replacement is avoided, so that the use cost of the cutter is effectively reduced.

Preferably, as shown in fig. 1, the cutting edge of the insert 4 is located within the junk slots 11 so that the cut scrap iron is discharged directly into the junk slots 11.

Preferably, as shown in fig. 1 and 2, the end surface of the positioning plate 21 is provided with a positioning round bar 211, and the positioning round bar 211 coaxially penetrates through the cutterhead 1, so that the positioning round bar 211 is utilized to improve the coaxial position accuracy between the cutterhead 1 and the cutter bar 2.

Preferably, as shown in fig. 1, the top surface of the head of the screw 3 is located in the bottom of the cutterhead 1 to ensure a clean overall structure outside the bottom surface of the cutterhead 1.

The foregoing description of the preferred embodiments of the utility model is merely exemplary and is not intended to be exhaustive or limiting of the utility model. It will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model.

Claims

1. A removable back milling cutter, comprising: the cutter head (1), the central position of cutter head (1) is equipped with cutter arbor (2) perpendicularly, cutter arbor (2) front end is equipped with locating plate (21) perpendicularly, locating plate (21) is polygonal structure, the top surface of cutter head (1) has offered the location counter bore that matches with locating plate (21), the bottom surface of cutter head (1) wears to be equipped with at least three screw (3), the anterior segment of screw (3) is connected in locating plate (21);

a plurality of chip grooves (11) are formed in the circumferential array of the cutterhead (1), and detachable blades (4) are arranged between the outer side wall of the cutterhead (1) corresponding to the adjacent chip grooves (11).

2. A detachable back milling cutter according to claim 1, characterized in that the cutting edges of the insert (4) are located in the region of the chip groove (11).

3. A detachable back milling cutter according to claim 1, characterized in that the end face of the positioning plate (21) is provided with a positioning round bar (211), the positioning round bar (211) coaxially penetrating the cutterhead (1).

4. A detachable back milling cutter according to claim 1, characterized in that the top surface of the head of the screw (3) is located in the bottom of the cutterhead (1).