CN212094512U

CN212094512U - Eccentric positive and negative chamfer sword

Info

Publication number: CN212094512U
Application number: CN202020754797.5U
Authority: CN
Inventors: 郑伟
Original assignee: Changzhou Yuerrui Precision Tool Co ltd
Current assignee: Changzhou Yuerrui Precision Tool Co ltd
Priority date: 2020-05-09
Filing date: 2020-05-09
Publication date: 2020-12-08
Anticipated expiration: 2030-05-09

Abstract

The utility model discloses an eccentric positive and negative chamfer sword, handle of a knife including the cylindricality, the front end of handle of a knife is equipped with positive chamfer sword, the front end of handle of a knife is equipped with the spliced pole, the front end of spliced pole is equipped with the anti-chamfer sword. The chamfering tool comprises the positive chamfering blade and the negative chamfering blade, can machine the front and the back of a workpiece simultaneously after once clamping, can form two surfaces at one time, greatly improves the machining efficiency, and has the advantages of simple structure and good reliability.

Description

Eccentric positive and negative chamfer sword

Technical Field

The utility model relates to the technical field of cutters, specifically be an eccentric positive and negative chamfer sword.

Background

The countersink drill is a countersink drill. Also called a chamfering tool, a chamfering drill, a pit-marking drill, a chamfering device, a drill for countersinking a conical countersink. The method can be used for processing the orifice deburring, chamfering and sinking socket, and has the premise that a guide hole is needed, the subsequent processing can be carried out, and the taper hole is large in top and small in bottom. When the taper flat-head screw is placed, a counter bore and a taper hole socket need to be machined, and trimming and deburring of the hole opening is to lightly trim the edge of the hole opening. When chamfering is carried out on two ends of a hole by the conventional chamfering tool, the two ends of the hole need to be operated respectively, and a workpiece needs to be turned over or a tool bit needs to be turned over, so that the machining efficiency is not high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an eccentric positive and negative chamfer sword to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an eccentric positive and negative chamfer sword, includes the handle of a knife of cylindricality, the front end of handle of a knife is equipped with positive chamfer sword, the front end of handle of a knife is equipped with the spliced pole, the front end of spliced pole is equipped with the reverse chamfer sword.

Preferably, the positive chamfer edge is conical and has a section included angle of 60 degrees, and the edge line of the negative chamfer edge has an included angle of 45 degrees with the center line.

Preferably, the knife handle, the connecting column and the reverse chamfer edge are integrally formed by hard alloy steel.

Compared with the prior art, the beneficial effects of the utility model are that: the chamfering tool comprises the positive chamfering blade and the negative chamfering blade, can machine the front and the back of a workpiece simultaneously after once clamping, can form two surfaces at one time, greatly improves the machining efficiency, and has the advantages of simple structure and good reliability.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

fig. 2 is a schematic side view of the present invention.

In the figure: 1. a knife handle; 2. a right chamfer edge; 3. an inverted chamfer edge; 4. connecting columns.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides an eccentric positive and negative chamfer sword, includes the handle of a knife 1 of cylindricality, and the front end of handle of a knife 1 is equipped with positive chamfer sword 2, and the front end of handle of a knife 1 is equipped with spliced pole 4, and the front end of spliced pole 4 is equipped with reverse chamfer sword 3, and during the chamfer, spliced pole 4 and reverse chamfer sword 3 pass from the round hole of treating the processing.

The positive chamfer edge 2 is conical, the included angle of the section is 60 degrees, the included angle between the edge line of the reverse chamfer edge 3 and the central line is 45 degrees, the knife handle 1, the connecting column 4 and the reverse chamfer edge 3 are integrally formed by hard alloy steel, and the positive chamfer edge 2 and the reverse chamfer edge 3 chamfer the front end and the rear end of the hole respectively.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an eccentric positive and negative chamfer sword, includes handle of a knife (1) of cylindricality, its characterized in that: the front end of handle of a knife (1) is equipped with positive chamfer sword (2), the front end of handle of a knife (1) is equipped with spliced pole (4), the front end of spliced pole (4) is equipped with reverse chamfer sword (3).

2. The eccentric forward and reverse chamfer cutter according to claim 1, wherein: the regular chamfer cutting edge (2) is conical, the included angle of the section is 60 degrees, and the included angle between the edge line of the reverse chamfer cutting edge (3) and the central line is 45 degrees.

3. The eccentric forward and reverse chamfer cutter according to claim 1, wherein: the knife handle (1), the connecting column (4) and the reverse chamfer edge (3) are integrally formed by hard alloy steel.