CN221269767U - High-speed steel drill bit with reaming structure - Google Patents

Abstract

The utility model relates to the technical field of high-speed steel drill bits and discloses a high-speed steel drill bit with a reaming structure, which comprises a bottom rod, wherein the top of the bottom rod is provided with a first drill bit, the top of the first drill bit is provided with a mounting component, the top of the mounting component is provided with a second drill bit, the top of the second drill bit is provided with a first drill bit tip, the tops of the bottom rod, the first drill bit and the second drill bit are respectively provided with a threaded groove, and the bottoms of the first drill bit, the second drill bit and the first drill bit tip are respectively fixedly provided with a screw rod.

Description

High-speed steel drill bit with reaming structure

Technical Field

The utility model relates to the technical field of high-speed steel drill bits, in particular to a high-speed steel drill bit with a reaming structure.

Background

In metal tools, the steel drill bit is commonly used, and the high-speed steel drill bit has the characteristics of high hardness, good wear resistance and strong heat resistance, and is suitable for working environments with high drilling speed and high strength. The high-speed steel drill bit is often used for drilling through materials such as metal, plastic, wood and the like, and is widely applied to the fields of machining, metal machining, building decoration and the like. High-speed steel drills of different sizes and shapes can meet different drilling requirements.

The publication number is: CN 215280012U's an adjustable high-speed steel drill bit, through establish first drill bit at first sleeve overcoat, establish the second drill bit at second sleeve overcoat, under the prerequisite that satisfies intensity of use and atress risk, can realize whole drill bit axial length's control through the mode that increases the second sleeve of predetermineeing axial length and the quantity of second drill bit, application scope is wide, and selectable scope is big.

However, in the above application, the drill bit is fixed in a threaded connection manner, so that in actual use, the drill bit rotates at a high speed and vibrates, looseness can occur between parts, and the parts are seriously separated, so that personnel injury can be caused.

Disclosure of utility model

The utility model aims to provide a high-speed steel drill bit with a reaming structure, so as to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a high-speed steel drill bit with reaming structure, includes the sill bar, the top of sill bar is provided with the drill bit one, the top of drill bit one is provided with installation component, installation component's top is provided with the drill bit two, the top of drill bit two is provided with the drill bit point, the screw thread groove has all been seted up at the top of sill bar, drill bit one, drill bit two, the bottom of drill bit point all is fixed with the screw rod, installation component includes:

The cone, the screw thread groove of unanimity has been seted up at the top and sill bar, drill bit one, drill bit two tops of cone, and the bottom of cone is fixed with unanimous screw rod with the bottom of drill bit one, drill bit two, drill bit tip, the spout has been seted up on the surface of screw rod, the inner wall sliding connection of spout has the fixture block, the one end that the fixture block is close to the screw rod centre of a circle is fixed with the spring, the one end that the fixture block was kept away from to the spring is fixed on the inner wall of spout, and when using, the sill bar drives drill bit one, drill bit two, drill bit tip, cone rotation, and under centrifugal force's effect, the fixture block outwards moves into the draw-in groove, and the inner wall of draw-in groove is contradicted with the surface of fixture block this moment, and then makes relative spacing.

Preferably, the inner walls of the screw grooves of the bottom rod, the first drill bit, the cone and the second drill bit are provided with clamping grooves, and the clamping blocks can be limited when the screw rods rotate.

Preferably, the diameter of the second drill bit is smaller than that of the first drill bit, and the diameter of the hole can be changed when the second drill bit is used.

Preferably, the top of the cone is consistent with the diameter of the bottom of the second drill bit, and the bottom of the cone is consistent with the diameter of the top of the first drill bit, so that the consistency of drilling is maintained in use.

Preferably, the screw rod is in threaded connection with the thread groove.

Preferably, the clamping block is parallel to the clamping groove, and can enter the clamping groove when rotating.

Compared with the prior art, the utility model provides the high-speed steel drill bit with the reaming structure, which has the following beneficial effects:

1. This high-speed steel drill bit with reaming structure is when rotating, and the sill bar drives drill bit one, drill bit two, drill bit point portion, cone rotation, and then under the effect of centrifugal force, can make the fixture block outwards remove, and then make the fixture block can enter into the draw-in groove, the inner wall of draw-in groove and the surface conflict of fixture block this moment, and then make relative spacing, can prevent under high-speed rotation, or under the circumstances of vibrations, take place that the screw rod takes place to break away from with the screw groove, cause personnel's injury.

2. This high-speed steel drill bit with reaming structure, when needs expand the diameter of drilling, continue to rotate for drill bit one pair of drilling expands, can change the diameter of drilling, simultaneously when needs bore dark hole, personnel can dismantle the drill bit portion, add extra one or multiunit drill bit two, make between the drill bit two fixed with the screw rod through thread groove, install the drill bit portion can, can bore deeper hole during the use, when need bore the big hole of diameter, make drill bit portion and drill bit two separate, make drill bit two and cone separation simultaneously, be fixed with drill bit one can, can add multiunit drill bit one simultaneously, can bore the big deeper hole of diameter.

Drawings

FIG. 1 is a schematic elevational view of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

FIG. 3 is a schematic view of the enlarged structure of FIG. 2A according to the present utility model;

Fig. 4 is an enlarged view of the structure B of fig. 3 according to the present utility model.

In the figure: 1. a bottom bar; 2. a screw; 3. a first drill bit; 4. a thread groove; 5. a mounting assembly; 50. a cone; 51. a chute; 52. a clamping block; 53. a spring; 54. a clamping groove; 6. a second drill bit; 7. a bit tip.

Detailed Description

As shown in fig. 1-4, the present utility model provides a technical solution: the utility model provides a high-speed steel drill bit with reaming structure, includes sill bar 1, and the top of sill bar 1 is provided with drill bit one 3, and the top of drill bit one 3 is provided with installation component 5, and the top of installation component 5 is provided with drill bit two 6, and the top of drill bit two 6 is provided with drill bit point 7, and thread groove 4 has all been seted up at the top of sill bar 1, drill bit one 3, drill bit two 6, drill bit point 7's bottom all is fixed with screw rod 2, and installation component 5 includes: the drilling machine comprises a cone 50, a sliding groove 51, a clamping block 52, a spring 53 and a clamping groove 54, wherein a consistent thread groove 4 is formed in the top of the cone 50 and the tops of a bottom rod 1, a first drill bit 3 and a second drill bit 6, a consistent screw rod 2 is fixed at the bottom of the cone 50 and the bottoms of the first drill bit 3, the second drill bit 6 and the second drill bit tip 7, the sliding groove 51 is formed in the surface of the screw rod 2, the clamping block 52 is slidably connected with the inner wall of the sliding groove 51, the spring 53 is fixed at one end, close to the center of the screw rod 2, of the clamping block 52, one end, far away from the clamping block 52, of the spring 53 is fixed on the inner wall of the sliding groove 51, when the drilling machine is required to be used, the bottom rod 1 is connected with the drilling machine, when the drilling machine is used, the bottom rod 1 drives the first drill bit 3, the second drill bit 6, the second drill bit tip 7 and the cone 50 to rotate, and then the clamping block 52 can move outwards under the action of centrifugal force, so that the clamping block 52 can enter the clamping groove 54, at the inner wall of the moment, and the clamping block 52 is in the surface of the clamping groove 52, and the surface of the clamping block 52 are correspondingly limited, and the damage of the screw rod 2 and the thread groove 4 can be prevented from being separated under the condition of high-speed rotation or vibration;

Clamping grooves 54 are formed in the inner walls of the threaded grooves 4 of the bottom rod 1, the first drill bit 3, the cone 50 and the second drill bit 6, and the clamping blocks 52 can be limited;

The diameter of the second drill bit 6 is smaller than that of the first drill bit 3, and the diameter of the hole can be changed when the drill is used;

The top of the cone 50 is consistent with the diameter of the bottom of the drill bit II 6, the bottom of the cone 50 is consistent with the diameter of the top of the drill bit I3, and the consistency of the work of the cone 50 can be maintained when the drill bit I is used; the screw rod 2 is in threaded connection with the thread groove 4;

The clamping block 52 is parallel to the clamping groove 54, and when the clamping block 52 rotates, the clamping block 52 can enter the clamping groove 54.

When needs use for sill bar 1 is connected with the rig, when using, sill bar 1 drives drill bit one 3, drill bit two 6, drill bit point 7, cone 50 rotates, and then under the effect of centrifugal force, can make fixture block 52 outwards remove, and then make fixture block 52 can enter into draw-in groove 54, the inner wall of draw-in groove 54 and the surface conflict of fixture block 52 this moment, and then make relative spacing, can prevent to rotate at a high speed, or under the circumstances of vibrations, take place that screw rod 2 takes place to break away from with thread groove 4, cause personnel's injury, when needs expand to the diameter of drilling, keep rotating, make drill bit one 3 expand to the drilling, can change the diameter of drilling, simultaneously when needs bore deep hole, personnel can dismantle drill bit point 7, add extra one or multiunit drill bit two 6, make between drill bit two 6 through thread groove 4 and screw rod 2 fixed, can, when installing drill bit 7 can, can bore the big hole of diameter when needs to bore, make drill bit 7 and two 6 separate, simultaneously make two 6 and 50 separate, drill bit point 3 can be fixed with the drill bit point 3 more than the diameter of a multiunit drill bit point 3.

The foregoing utility model has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.

Claims (6)

1. High-speed steel drill bit with reaming structure, including sill bar (1), its characterized in that: the utility model provides a drilling machine, including installation component (2) including drilling machine, backing bar, installation component, screw rod (2), backing bar, screw rod (4) have all been seted up at the top of backing bar (1), drilling machine (3), drilling machine (6), drilling machine (7) are all offered at the top of backing bar (1), backing bar (3), drilling machine (6), drilling machine (7) are all fixed with screw rod (2) in the bottom of drilling machine (3), drilling machine (6), drilling machine (7), installation component (5) include:

Cone (50), unanimous thread groove (4) have been seted up at the top of cone (50) and sill bar (1), drill bit one (3), drill bit two (6) tops, and the bottom of cone (50) is fixed with unanimous screw rod (2) with the bottom of drill bit one (3), drill bit two (6), drill bit point portion (7), spout (51) have been seted up on the surface of screw rod (2), the inner wall sliding connection of spout (51) has fixture block (52), the one end that fixture block (52) are close to screw rod (2) centre of a circle is fixed with spring (53), the one end that fixture block (52) was kept away from to spring (53) is fixed on the inner wall of spout (51).

2. A high-speed steel drill bit with a reaming structure as claimed in claim 1, wherein: the inner walls of the threaded grooves (4) of the bottom rod (1), the first drill bit (3), the cone (50) and the second drill bit (6) are provided with clamping grooves (54).

3. A high-speed steel drill bit with a reaming structure as claimed in claim 1, wherein: the diameter of the second drill bit (6) is smaller than that of the first drill bit (3).

4. A high-speed steel drill bit with a reaming structure as claimed in claim 1, wherein: the top of the cone (50) is consistent with the diameter of the bottom of the drill bit II (6), and the bottom of the cone (50) is consistent with the diameter of the top of the drill bit I (3).

5. A high-speed steel drill bit with a reaming structure as claimed in claim 1, wherein: the screw rod (2) is in threaded connection with the thread groove (4).

6. A high-speed steel drill bit with a reaming structure as claimed in claim 2, wherein: the clamping block (52) is parallel to the clamping groove (54).