CN212042836U - A dual-purpose ball cutter - Google Patents

Abstract

The utility model relates to a dual-purpose ball cutter for milling and downgrading, comprising a tool handle, a neck and a cutting tool head. The cutting tool head includes two cutting seats, and a chip removal groove is arranged between adjacent cutting seats. The cutting seat is provided with a main cutting edge, the rear side of the main cutting edge is provided with a flank face I and a flank face II, and the intersection of the main cutting edge and the neck is provided with a concave towards the center of the tool and is connected with the main cutting edge. Circular cutting edges with tangent cutting edges. The utility model can directly process the burr around the bottom of the hole when processing the through hole, without replacing multiple tools for processing, saving tool cost and tool replacement time, and improving processing efficiency.

Description

A dual-purpose ball cutter

technical field

The utility model belongs to the technical field of cutting tools, in particular to a dual-purpose ball cutter for milling and downgrading.

Background technique

When processing through holes, it is also necessary to replace the tool to process the burr at the bottom of the hole. The replacement of the tool will directly increase the processing time and reduce the processing efficiency.

Utility model content

The purpose of the utility model is to provide a dual-purpose ball cutter for milling and chopping, so as to solve the problem of low processing efficiency of through holes.

The dual-purpose ball cutter of the utility model is realized as follows:

A dual-purpose ball cutter for milling and downgrading, comprising a handle, a neck and a cutting head, wherein the cutting head includes two cutting seats, and a chip removal groove is arranged between adjacent cutting seats, and the cutting seat is provided with There is a main cutting edge, the rear side of the main cutting edge is provided with a flank face I and a flank face II, the intersection of the main cutting edge and the neck is provided with a concave to the center of the tool and is tangent to the main cutting edge arc cutting edge.

Further, a flat body is arranged between the flank surface II and the chip flute.

Further, the main cutting edge is a ball-end edge.

Further, the radius of the ball nose edge is 3mm.

Further, the chip removal groove is an inclined groove.

Further, the tool handle and the neck are connected by a chamfered step.

Further, the angle of the chamfered step is 30°.

Further, the chip flutes do not extend to the chamfered step.

Further, the angle of the chip flute is 5°.

Further, the diameter of the handle is 6 mm, and the diameter of the neck is 4 mm.

Further, the radius of the circular arc cutting edge is 1 mm.

After adopting the above-mentioned technical scheme, the beneficial effect that the utility model has is:

The utility model can directly process the burr around the bottom of the hole when processing the through hole, without changing the tool, and using multiple tools for processing, saving tool cost and tool replacement time, and improving processing efficiency.

Description of drawings

The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the structure diagram of the dual-purpose ball cutter for milling and downgrading of the preferred embodiment of the present utility model;

Fig. 2 is the end face structure diagram of the dual-purpose ball cutter for milling and chopping according to the preferred embodiment of the present utility model;

3 is a structural diagram of a cutting head of a dual-purpose ball cutter for milling and downgrading according to a preferred embodiment of the present utility model;

In the figure: shank 1, neck 2, cutting head 3, cutting seat 4, chip flute 5, main cutting edge 6, flank Ⅰ7, flank Ⅱ8, arc cutting edge 9, flat body 10, Chamfered step 11.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments of the present invention are a part of the embodiments of the present invention, but not all of the embodiments.

Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

As shown in Figures 1-3, a dual-purpose ball cutter for milling and leveling includes a tool shank 1, a constriction 2 and a cutting head 3. The cutting head 3 includes two cutting seats 4 and adjacent cutting seats 4 A chip flute 5 is provided between, the cutting seat 4 is provided with a main cutting edge 6, and the rear side of the main cutting edge 6 is provided with a flank I7 and a flank II8, the main cutting edge 6 and the A circular arc cutting edge 9 which is concave to the center of the tool and is tangent to the main cutting edge is provided at the intersection of the constriction 2 .

A flat body 10 is arranged between the flank surface II8 and the chip flute 5 . The arrangement of the flat body 10 can facilitate chip removal and prevent interference in machining.

The main cutting edge 6 is a ball nose edge.

The radius of the ball nose edge is 3mm.

The chip flutes 5 are inclined grooves. The chip removal groove 5 of the dual-purpose ball cutter of this embodiment can only realize straight grooves or inclined grooves, and compared with straight grooves, the anti-vibration performance of inclined grooves is better.

The tool handle 1 and the neck 2 are connected by a chamfered step 11 .

The angle of the chamfered step 11 is 30°.

The chip flute 5 is too long, and its rigidity is poor, and the tool is easily broken during the machining process. Therefore, in this embodiment, the chip flute 5 does not extend to the chamfered step 11 .

The angle of the chip flute 5 is 5°

The choice of the angle of the chip flute 5 can facilitate chip evacuation.

The diameter of the handle 1 is 6 mm, and the diameter of the neck 2 is 4 mm.

The radius of the circular arc cutting edge 9 is 1 mm.

Among them, the selection of parameters such as the radius of the ball nose edge, the angle of the chamfering step 11, the diameter of the shank 1 and the neck 2, and the radius of the arc cutting edge 9 are not limited to the values provided in this embodiment. Choose according to the specific specifications of the products to be processed.

Taking the above ideal embodiment according to the present invention as inspiration, through the above description, relevant staff can make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present utility model is not limited to the content in the description, and its technical scope must be determined according to the scope of the claims.

Claims (10)

1. A dual-purpose ball cutter for milling and downgrading, characterized in that it comprises a handle (1), a neck (2) and a cutting tip (3), the cutting tip (3) comprising two cutting seats (4) ), and a chip flute (5) is provided between adjacent cutting seats (4), the cutting seat (4) is provided with a main cutting edge (6), and the rear side of the main cutting edge (6) is provided with a rear Rifle face I (7) and flank face II (8), the intersection of the main cutting edge (6) and the neck (2) is provided with a concave towards the center of the tool and is tangent to the main cutting edge (6) of the circular cutting edge (9). 2 . The dual-purpose ball cutter for milling and downgrading according to claim 1 , wherein a flat body ( 10 ) is arranged between the flank surface II ( 8 ) and the chip removal groove ( 5 ). 3 . 3 . The dual-purpose ball cutter for milling and chopping according to claim 1 , wherein the main cutting edge ( 6 ) is a ball-end edge, and the radius thereof is 3 mm. 4 . 4 . The dual-purpose ball cutter for milling and downgrading according to claim 1 , wherein the chip removal groove ( 5 ) is an inclined groove. 5 . 5 . The dual-purpose ball cutter for milling and downgrading according to claim 1 , wherein the shank ( 1 ) and the neck ( 2 ) are connected by a chamfering step ( 11 ). 6 . 6 . The dual-purpose ball cutter for milling and chopping according to claim 5 , wherein the angle of the chamfering step ( 11 ) is 30°. 7 . 7 . The dual-purpose ball cutter for milling and chopping according to claim 5 , wherein the chip flutes ( 5 ) do not extend to the chamfering step ( 11 ). 8 . 8 . The dual-purpose ball cutter for milling and downgrading according to claim 1 , wherein the angle of the chip flutes ( 5 ) is 5°. 9 . 9 . The dual-purpose ball cutter for milling and downgrading according to claim 1 , wherein the diameter of the handle ( 1 ) is 6 mm, and the diameter of the neck ( 2 ) is 4 mm. 10 . 10 . The dual-purpose ball cutter for milling and chopping according to claim 1 , wherein the radius of the circular arc cutting edge ( 9 ) is 1 mm. 11 .

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