CN218611842U

CN218611842U - Ladder combined type deep hole drill bit

Info

Publication number: CN218611842U
Application number: CN202222413667.7U
Authority: CN
Inventors: 任炜红
Original assignee: Changzhou Haiying Tool Manufacturing Co ltd
Current assignee: Changzhou Haiying Tool Manufacturing Co ltd
Priority date: 2022-09-13
Filing date: 2022-09-13
Publication date: 2023-03-14
Anticipated expiration: 2032-09-13

Abstract

The utility model discloses a ladder combined type deep hole drill bit, including drilling rod, installation component, drill bit subassembly and louvre. The beneficial effects of the utility model are that: the utility model discloses well drilling rod, drill bit one and drill bit two all adopt tungsten steel material to make, help improving the self hardness of deep hole drill bit, and improve its wear-resisting, heat resistance, set up the louvre simultaneously on the surface of drill bit one and drill bit two, help in time dispelling the heat to the drill bit, improve the life of drill bit, set up the installation component, with the installation disc through spacing post and spacing hole and a quick butt joint of drill bit, the convenience is dismantled drill bit one, can be when drill bit one or two wearing and tearing are serious, in time change, the quality of BTA is improved.

Description

Ladder combined type deep hole drill bit

Technical Field

The utility model relates to a deep hole drill specifically is a ladder combined type deep hole drill, belongs to drill bit technical field.

Background

The step deep hole drill is also called a step drill or a pagoda drill, and can be divided into a straight groove, a spiral groove and an arc groove according to the groove shape of a product; according to the number of the edges of the product, the drill can be divided into a single-edge step drill, a double-edge step drill, a three-edge step drill, a four-edge step drill and a multi-edge step drill; the drilling machine is mainly used for drilling and processing thin steel plates within 3mm, one drill bit can replace a plurality of drill bits to be used, holes with different diameters can be processed according to needs, large holes can be processed at one time, and the drill bits do not need to be replaced, positioning holes do not need to be drilled, and the like.

When the existing stepped deep hole drill is used, the following defects often exist:

1) When the existing stepped deep hole drill is used, a drill bit and a workpiece rub to generate a large amount of heat, the heat is accumulated on the surface of the drill bit to accelerate the damage of the drill bit, and the service life of the drill bit is shortened;

2) When some current ladder deep hole bores use, because be the integrated design between drilling rod and the drill bit mostly, can't dismantle, when the drill bit wearing and tearing are serious, can't have corresponding only to change the drill bit, directly replace the drill bit whole usually, increase use cost.

Disclosure of Invention

The present invention is directed to a stepped composite deep hole drill for solving at least one of the above problems.

The utility model discloses a following technical scheme realizes above-mentioned purpose: a stepped composite deep hole drill comprises

The drill rod is arranged on the upper side of the deep hole drill bit, and the upper end of the drill rod is fixedly connected with a connector;

the mounting assembly is fixedly connected to the bottom end of the drill rod and comprises a mounting disc fixedly connected to the bottom end of the drill rod and fastening bolts distributed on the surface of the mounting disc in a circular array;

the drill bit assembly is arranged on the bottom surface of the mounting disc and comprises a first drill bit arranged on the bottom surface of the mounting disc and a second drill bit fixedly welded at the bottom end of the first drill bit, two sides of the first drill bit are fixedly provided with a first drill blade, and two sides of the second drill bit are fixedly provided with a second drill blade;

and the heat dissipation holes are formed in the surfaces of the first drill bit and the second drill bit.

As a further aspect of the present invention: the drill rod, the first drill bit and the second drill bit are all made of tungsten steel materials.

As a further aspect of the present invention: the mounting disc and the first drill bit surface are provided with a plurality of threaded holes in a circular array, and the mounting disc is fixedly connected with the first drill bit through fastening bolts.

As a further aspect of the present invention: the bottom surface of the mounting disc is symmetrically and fixedly connected with two limiting columns, and the upper surface of the first drill bit is symmetrically provided with two limiting holes matched with the limiting columns.

As a further aspect of the present invention: the surface of the first drill bit is provided with a first chip groove, the surface of the second drill bit is provided with a second chip groove, and the first chip groove is communicated with the second chip groove.

The beneficial effects of the utility model are that:

1) The utility model discloses well drilling rod, drill bit one and drill bit two all adopt tungsten steel material to make, help improving the self hardness of deep hole drill bit to improve its wear-resisting, heat resistance, set up the louvre on the surface of drill bit one and drill bit two simultaneously, help in time dispelling the heat to the drill bit, improve the life of drill bit;

2) The utility model discloses a set up the installation component, will install the disc and dock fast through spacing post and spacing hole and drill bit, conveniently dismantle drill bit one, can in time change when drill bit one or two wearing and tearing of drill bit are serious, improve the quality of BTA.

Drawings

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

FIG. 2 is a disassembled structure view of the drill rod and the drill bit I of the present invention;

fig. 3 is a connection structure diagram of the drill rod and the first drill bit of the present invention.

In the figure: 1. the drill rod comprises a drill rod body, 2, a connector, 3, a mounting assembly, 31, a mounting disc, 32, a fastening bolt, 33, a threaded hole, 34, a limiting column, 35, a limiting hole, 4, a first drill bit, 5, a second drill bit, 6, a first drill edge, 7, a second drill edge, 8, a heat dissipation hole, 9, a first chip groove, 10 and a second chip groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.

Example one

As shown in FIGS. 1 to 3, a stepped composite type deep hole drill includes

The drill rod 1 is arranged on the upper side of the deep hole drill bit, and the upper end of the drill rod is fixedly connected with the connector 2;

the mounting assembly 3 is fixedly connected to the bottom end of the drill rod 1 and comprises a mounting disc 31 fixedly connected to the bottom end of the drill rod 1 and fastening bolts 32 distributed on the surface of the mounting disc 31 in a circular array;

the drill bit assembly is arranged on the bottom surface of the mounting disc 31 and comprises a first drill bit 4 arranged on the bottom surface of the mounting disc 31 and a second drill bit 5 fixedly welded at the bottom end of the first drill bit 4, a first drill blade 6 is fixedly arranged on two sides of the first drill bit 4, and a second drill blade 7 is fixedly arranged on two sides of the second drill bit 5;

and the heat dissipation holes 8 are formed in the surfaces of the first drill bit 4 and the second drill bit 5.

The embodiment of the utility model provides an in, drilling rod 1, drill bit 4 and drill bit two 5 all adopt the tungsten steel material to make, help improving the self hardness of deep-hole drill bit to improve its wear-resisting heat resistance.

Example two

As shown in FIGS. 1 to 3, a stepped composite type deep hole drill includes

The embodiment of the utility model provides an in, a plurality of screw holes 33 have been seted up to installation disc 31 and a 4 surfaces of drill bit circular array, through fastening bolt 32 fixed connection between installation disc 31 and the drill bit 4, conveniently dismantle drill bit 4, can in time change when drill bit 4 or two 5 wearing and tearing of drill bit are serious, improve BTA's quality.

The embodiment of the utility model provides an in, two spacing posts 34 of bottom surface symmetry fixedly connected with of installation disc 31, the upper surface symmetry of drill bit 4 seted up two with spacing post 34 matched with spacing hole 35, can be when connecting, will install disc 31 through spacing post 34 and spacing hole 35 with drill bit 4 dock fast, improve and change efficiency.

The embodiment of the utility model provides an in, drill bit 4's surface has been seted up and has been had chip groove one 9, and two 10 chip grooves have been seted up on the surface of two 5 drill bits, and chip groove one 9 and two 10 chip grooves are linked together, and the convenience is when drilling, carries out timely clearance to the sweeps that mills the production, improves the quality of spot facing work.

The working principle is as follows: when the stepped combined type deep hole drill bit is used for deep hole machining, firstly, the drill rod 1 is connected with a machine tool through the connector 2, then a workpiece can be drilled, when the stepped combined type deep hole drill bit is used, heat generated on the surfaces of the drill bit one 4 and the drill bit two 5 can be timely dissipated through the heat dissipation holes 8, scraps generated in the machining process are cleared through the scrap discharge grooves one 9 and the scrap discharge grooves two 10, the scraps are prevented from being accumulated in the holes, the deep hole machining quality is improved, when the drill bit one 4 or the drill bit two 5 is seriously abraded, the fastening bolt 32 is unscrewed, the drill rod 1 and the drill bit one 4 can be disassembled, the new drill bit one 4 is replaced, then the mounting disc 31 is quickly butted with the drill bit one 4 through the limiting columns 34 and the limiting holes 35, the drill bit one 4 or the drill bit two 5 can be timely replaced when the drill bit one 4 or the drill bit two 5 is seriously abraded, and the deep hole machining quality is improved.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A step combined type deep hole drill bit is characterized by comprising

The drill rod (1) is arranged on the upper side of the deep hole drill bit, and the upper end of the drill rod is fixedly connected with the connector (2);

the mounting assembly (3) is fixedly connected to the bottom end of the drill rod (1) and comprises a mounting disc (31) fixedly connected to the bottom end of the drill rod (1) and fastening bolts (32) distributed on the surface of the mounting disc (31) in a circular array;

the drill bit assembly is arranged on the bottom surface of the mounting disc (31) and comprises a first drill bit (4) arranged on the bottom surface of the mounting disc (31) and a second drill bit (5) fixedly welded at the bottom end of the first drill bit (4), wherein first drill blades (6) are fixedly arranged on two sides of the first drill bit (4), and second drill blades (7) are fixedly arranged on two sides of the second drill bit (5);

and the heat dissipation holes (8) are formed in the surfaces of the first drill bit (4) and the second drill bit (5).

2. The stepped composite deep hole drill according to claim 1, wherein: the drill rod (1), the first drill bit (4) and the second drill bit (5) are all made of tungsten steel materials.

3. The stepped composite deep hole drill according to claim 1, wherein: a plurality of threaded holes (33) are formed in the surfaces of the mounting disc (31) and the first drill bit (4) in a circular array, and the mounting disc (31) is fixedly connected with the first drill bit (4) through fastening bolts (32).

4. The stepped composite deep hole drill according to claim 1, wherein: the bottom surface symmetry fixedly connected with of installation disc (31) two spacing post (34), the upper surface symmetry of drill one (4) seted up two with spacing post (34) matched with spacing hole (35).

5. The stepped composite deep hole drill according to claim 1, wherein: the drill bit is characterized in that a first chip groove (9) is formed in the surface of the first drill bit (4), a second chip groove (10) is formed in the surface of the second drill bit (5), and the first chip groove (9) is communicated with the second chip groove (10).