CN112536464A

CN112536464A - Drill bit mechanism capable of performing secondary positioning

Info

Publication number: CN112536464A
Application number: CN202011163289.0A
Authority: CN
Inventors: 李虎
Original assignee: Wuxi Xiuyan Precision Machinery Co ltd
Current assignee: Wuxi Xiuyan Precision Machinery Co ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-03-23

Abstract

The invention relates to the technical field of drill bit installation, and discloses a drill bit mechanism capable of performing secondary positioning, which comprises an installation head and a drill bit, wherein the top of the drill bit is connected with a threaded tool handle, the bottom of the installation head is provided with an internal threaded hole matched with the threaded tool handle, threads of the threaded tool handle are inserted into the internal threaded hole, a positioning sleeve is fixedly inserted on the threaded tool handle, an annular embedded groove is annularly formed in the bottom end surface of the installation head, an annular embedded ring is fixedly inserted into the positioning sleeve, and a top port of the annular embedded ring is embedded into the inner side of the annular embedded groove. This drill bit mechanism that can carry out secondary location for hexagon socket head cap screw's end compresses tightly first magnet piece through the second magnet piece, increases the horizontal shearing force that annular embedding circle is located annular embedded groove, thereby effectually carries out the secondary location to the screw thread handle of a knife, when avoiding the high-speed rotation of drill bit, the screw thread handle of a knife takes place the rotatory not hard up condition, the security that improve equipment used.

Description

Drill bit mechanism capable of performing secondary positioning

Technical Field

The invention relates to the technical field related to drill bit installation, in particular to a drill bit mechanism capable of performing secondary positioning.

Background

The drill bit is a tool for drilling a through hole or a blind hole in a solid material and reaming the existing hole, and the commonly used drill bits mainly comprise a twist drill, a flat drill, a center drill, a deep hole drill and a trepanning drill, and the reaming drill and the countersink drill can not drill the solid material, but can also be classified into the drill bits in a custom way.

The drill bit is generally clamped by the mounting head to carry out mounting and positioning, a related operator is required to screw the drill bit, the situation that the drill bit is clamped and loosened to drop is avoided, the clamping operation strength is high, when some drill bits connected through threads are used, the situation that the drill bit rotating at a high speed is loosened easily due to rotation exists, certain potential safety hazards exist, the existing drill bit is generally positioned once when being positioned, effective secondary clamping positioning cannot be carried out, and therefore the drill bit mechanism capable of carrying out secondary positioning is designed by the inventor, and the technical problem is solved.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a drill bit mechanism capable of carrying out secondary positioning, and solves the potential safety hazard problem that the drill bit is loosened by one-time positioning generally when being installed through an installation head.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: a drill bit mechanism capable of carrying out secondary positioning comprises an installation head and a drill bit, wherein the top of the drill bit is connected with a threaded cutter handle, the bottom of the installation head is provided with an internal threaded hole matched with the threaded cutter handle, threads of the threaded cutter handle are inserted into the inner side of the internal threaded hole, a positioning sleeve is fixedly inserted into the threaded cutter handle, the bottom end face of the installation head is annularly provided with an annular embedded groove, an annular embedded ring is fixedly inserted into the positioning sleeve, a top port of the annular embedded ring is embedded into the inner side of the annular embedded groove, the annular inner side wall of the annular embedded groove is provided with an annular mounting groove, a first magnet piece is arranged on the inner side wall of the annular mounting groove, the annular side wall of the installation head is symmetrically provided with two arc containing grooves communicated with the annular embedded groove, the annular embedded ring is provided with positioning threaded holes in an annular array at the inner side, the end of the hexagon socket head cap screw is provided with a second magnet piece matched with the first magnet piece, and the second magnet piece is in contact with the first magnet piece.

Preferably, the matching relationship between the annular embedding ring and the inner side wall of the annular embedding groove is clearance fit, so that the annular embedding ring can be stably inserted into the inner side of the annular embedding groove.

Preferably, the centers of the threaded shank, the drill bit, the internal thread hole, the annular embedded groove and the annular embedded ring are all located on the same vertical axis, and stable transmission of rotating torque between structures is guaranteed.

Preferably, the face that first magnet piece and second magnet piece contacted is the opposite magnetic pole, and the external diameter of second magnet piece is less than hexagon socket head cap screw's external diameter of screw, and magnetic attraction between first magnet piece and the second magnet piece, effectual interior hexagon socket head cap screw of avoiding is not hard up in the location threaded hole, ensures stable cooperation between the structure.

Preferably, two the arc is accomodate the groove and is seted up the radian and be two hundred forty degrees for the arc is accomodate the groove and can be effectually carried out the screw thread counterpoint through hexagon socket head cap screw to the location screw hole that the annular embedding circled.

Preferably, the nut end of the hexagon socket head cap screw is located at the inner side of the arc-shaped receiving groove.

(III) advantageous effects

The invention provides a drill bit mechanism capable of performing secondary positioning. The method has the following beneficial effects:

(1) this can carry out drill bit mechanism of secondary location, through the screw thread handle of a knife, annular embedding circle and hexagon socket head cap screw mutually support, when the drill bit is installed and is used, screw thread handle of a knife spiral is pegged graft in the internal thread hole, make annular embedding circle insert the inboard of annular embedded groove, then accomodate the inboard of groove screw grafting at corresponding location screw hole through hexagon socket head cap screw through the arc, make hexagon socket head cap screw's end compress tightly first magnet piece through the second magnet piece, increase the horizontal shearing force that annular embedding circle is located annular embedded groove, thereby effectually carry out the secondary location to the screw thread handle of a knife, when avoiding the high-speed rotation of drill bit, the rotatory not hard up condition takes place for the screw thread handle of a knife, the security that improve equipment used.

(2) This drill bit mechanism that can carry out secondary location mutually supports through setting up first magnet piece and second magnet piece, when hexagon socket head cap screw compressed tightly first magnet piece through the second magnet piece, and first magnet piece and the mutual magnetic adsorption of second magnet piece take place the rotatory not hard up condition in the effectual interior hexagon bolt of avoiding between with the location screw hole to guarantee the stable cooperation between the structure.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is an enlarged schematic view of a structure in fig. 1.

In the figure: the magnetic drill comprises a mounting head, a drill bit, 3 internal thread holes, 4 thread tool handles, 5 positioning sleeves, 6 annular embedding grooves, 7 annular embedding rings, 8 annular mounting grooves, 9 first magnet pieces, 10 positioning thread holes, 11 arc-shaped accommodating grooves, 12 hexagon socket head bolts and 13 second magnet pieces.

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.

As shown in fig. 1-2, the present invention provides a technical solution: a drill bit mechanism capable of carrying out secondary positioning comprises an installing head 1 and a drill bit 2, wherein the top of the drill bit 2 is connected with a threaded cutter handle 4, the bottom of the installing head 1 is provided with an internal threaded hole 3 matched with the threaded cutter handle 4, the threaded cutter handle 4 is threaded and inserted in the internal side of the internal threaded hole 3, a positioning sleeve 5 is fixedly inserted on the threaded cutter handle 4, the bottom end surface of the installing head 1 is annularly provided with an annular embedded groove 6, an annular embedded ring 7 is fixedly inserted on the positioning sleeve 5, the top port of the annular embedded ring 7 is embedded in the internal side of the annular embedded groove 6, the annular inner side wall of the annular embedded groove 6 is provided with an annular installing groove 8, the inner side wall of the annular installing groove 8 is provided with a first magnet piece 9, the annular side wall of the installing head 1 is symmetrically provided with two arc accommodating grooves 11 communicated with the annular embedded groove 6, the annular embedded ring 7, the positioning threaded hole 10 is inserted with an inner hexagon bolt 12 through a corresponding arc-shaped accommodating groove 11, the tail end of the inner hexagon bolt 12 is provided with a second magnet piece 13 matched with the first magnet piece 9, the second magnet piece 13 is contacted with the first magnet piece 9, the matching relation between the annular embedding ring 7 and the inner side wall of the annular embedding groove 6 is clearance fit, so that the annular embedding ring 7 can be stably inserted into the inner side of the annular embedding groove 6, the threaded tool handle 4, the drill bit 2, the internal threaded hole 3, the annular embedding groove 6 and the center of the annular embedding ring 7 are all positioned on the same vertical axis, the stable transmission of the rotating torque between structures is ensured, the contact surface of the first magnet piece 9 and the second magnet piece 13 is an opposite magnetic pole, the outer diameter of the second magnet piece 13 is smaller than the outer diameter of the thread of the inner hexagon bolt 12, and the magnetic attraction force between the first magnet piece 9 and the second magnet piece 13, effectual hexagon socket head cap screw 12 of avoiding is not hard up in positioning screw hole 10, ensures stable cooperation between the structure, two the arc is accomodate the radian of seting up of groove 11 and is two hundred forty degrees for the arc is accomodate groove 11 and can effectually carry out the screw thread counterpoint through hexagon socket head cap screw 12 to positioning screw hole 10 on annular embedding circle 7, hexagon socket head cap screw 12's nut end is located the arc and accomodates the inboard of groove 11.

In conclusion, when the drill bit 2 is installed and used, the threaded shank 4 is spirally inserted into the internal threaded hole 3, the annular embedded ring 7 is inserted into the inner side of the annular embedded groove 6, then the inner hexagonal bolt 12 is inserted into the inner side of the corresponding positioning threaded hole 10 through the arc-shaped accommodating groove 11, the tail end of the inner hexagonal bolt 12 is pressed against the first magnet piece 9 through the second magnet piece 13, the transverse shearing force of the annular embedded ring 7 in the annular embedded groove 6 is increased, and the threaded shank 4 is effectively secondarily positioned.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a reference structure" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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. A drill bit mechanism capable of performing secondary positioning comprises a mounting head and a drill bit, and is characterized in that: the top of the drill bit is connected with a threaded cutter handle, the bottom of the mounting head is provided with an internal thread hole matched with the threaded cutter handle, threads of the threaded cutter handle are inserted into the inner side of the internal thread hole, the threaded cutter handle is fixedly inserted with a positioning sleeve, the bottom end surface of the mounting head is annularly provided with an annular embedded groove, the positioning sleeve is fixedly inserted with an annular embedded ring, a top port of the annular embedded ring is embedded into the inner side of the annular embedded groove, the annular inner side wall of the annular embedded groove is provided with an annular mounting groove, a first magnet piece on the inner side wall of the annular mounting groove, the annular side wall of the mounting head is symmetrically provided with two arc accommodating grooves communicated with the annular embedded groove, the annular embedded ring is provided with positioning thread holes in an annular array of the annular embedded grooves positioned on the inner side part of the annular embedded groove, the positioning thread holes are inserted with inner hexagon bolts through corresponding arc, the second magnet piece is in contact with the first magnet piece.

2. A drill bit mechanism capable of secondary positioning according to claim 1, wherein: the matching relation between the annular embedding ring and the inner side wall of the annular embedding groove is clearance fit.

3. A drill bit mechanism capable of secondary positioning according to claim 1, wherein: the centers of the threaded tool shank, the drill bit, the internal thread hole, the annular embedded groove and the annular embedded ring are all located on the same vertical axis.

4. A drill bit mechanism capable of secondary positioning according to claim 1, wherein: the surface that first magnet piece and second magnet piece contacted is the opposite magnetic pole, and the external diameter of second magnet piece is less than hexagon socket head cap screw's external diameter of screw.

5. A drill bit mechanism capable of secondary positioning according to claim 1, wherein: the radian of the two arc-shaped accommodating grooves is two hundred and forty degrees.

6. A drill bit mechanism capable of secondary positioning according to claim 1, wherein: the nut end of the inner hexagon bolt is positioned on the inner side of the arc-shaped accommodating groove.