CN212761312U

CN212761312U - Deep hole processing drill bit

Info

Publication number: CN212761312U
Application number: CN202021179098.9U
Authority: CN
Inventors: 蔡志华; 余长元
Original assignee: WUHAN TYLLS TOOLS CO Ltd
Current assignee: WUHAN TYLLS TOOLS CO Ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-03-23
Anticipated expiration: 2030-06-23

Abstract

The utility model relates to the technical field of drill bits for numerical control machining, in particular to a deep hole machining drill bit, which comprises a drill bit connecting rod, a drill bit, a left steel wire fixing block, a right steel wire fixing block and a steel wire rope, wherein the end part of the drill bit is connected with the bottom part of the drill bit connecting rod, a steel wire hole is arranged at the center of the end surface of the drill bit connecting rod, a core hole is arranged at the center of the bottom part of the drill bit, a core shaft is assembled inside the core hole, and the end part of the core shaft is welded at the bottom part of the steel wire rope. Reach easy operation, labour saving and time saving, and then improved work efficiency low.

Description

Deep hole processing drill bit

Technical Field

The utility model relates to a drill bit technical field for the numerical control processing specifically is a deep hole processing drill bit.

Background

The hole that is greater than 6 to the ratio of hole depth and aperture is generally called the deep hole in machining, the deep hole drill bit is a section drill bit that is used for processing the deep hole specially, but current digit control machine tool is when the processing hole, in order to improve spot facing speed, thereby improve production efficiency, the rotational speed of drill bit can be higher, when the rotational speed of drill bit is higher, the overheated phenomenon takes place easily for the tool bit of drill bit, need continuous with the coolant liquid to pour the tool bit of cooling drill bit, otherwise the tool bit takes place to collapse easily, when processing the deep hole, traditional drill bit is when boring certain degree of depth, or long-time during operation, the drill bit breaks easily in the deep hole, thereby need special instrument to take out the drill bit position of breaking at the deep hole inside, thereby complex operation, consuming time and wasting force, and then reduced work efficiency and hang.

To sum up, the utility model discloses a design a BTA drill bit and solve the problem that exists.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a deep hole processing drill bit 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:

a deep hole processing drill bit comprises a drill bit connecting rod, a drill bit, a left steel wire fixing block, a right steel wire fixing block and a steel wire rope, wherein the end part of the drill bit is connected to the bottom of the drill bit connecting rod, a steel wire hole is formed in the center of the end surface of the drill bit connecting rod, a core hole is formed in the center of the bottom of the drill bit, a core shaft is assembled inside the core hole, the end part of the core shaft is welded to the bottom of the steel wire rope, the end part of the steel wire rope sequentially passes through the core hole and the steel wire hole from bottom to top and extends to the upper part of the drill bit connecting rod to be welded with a steel wire positioning cap, a left round counter bore is formed in the center of the right side wall of the left steel wire fixing block, a right round counter bore is formed in the center of the left side, the steel wire rope and the steel wire positioning cap are respectively arranged between the left round counter bore and the right round counter bore.

Preferably, the drill connecting rod and the drill are in an integrally formed structure.

Preferably, the steel wire hole and the core hole are of a communicating structure and are in clearance fit with the steel wire rope.

Preferably, the mandrel is a two-stage stepped shaft, the first-stage shaft is one sixth of the second-stage shaft, the mandrel hole is a stepped hole and is in interference fit with the mandrel, the mandrel is one fourth of the length of the drill bit, and the mandrel is made of the same material as the drill bit.

Preferably, a circular counter bore is formed between the left circular counter bore and the right circular counter bore, and the left circular counter bore and the right circular counter bore are respectively connected with the steel wire rope and the steel wire positioning cap in a rotating mode.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, through set up the hole on the drill bit body and in downthehole design wire rope carry and draw the structure, guaranteed that the drill bit after the rupture is in connected state with the connecting rod to solved traditional drill bit when boring certain degree of depth, perhaps long-time during operation, the drill bit breaks easily in the deep hole, thereby needs special instrument to take out the problem of rupture at the inside drill bit position of deep hole, reaches easy operation, labour saving and time saving, and then has improved work efficiency low.

2. The utility model discloses in, through structural increase structure original to make current drill bit structure more reasonable, consequently the practicality is stronger, more suits to use widely on a large scale.

Drawings

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

FIG. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is a schematic view of the overall bearing structure of the present invention;

FIG. 4 is a schematic view of a part of the structure of the present invention;

FIG. 5 is an enlarged schematic view of the structure of the present invention A;

fig. 6 is an enlarged schematic structural diagram of the present invention B.

In the figure: 1-drill connecting rod, 2-drill, 3-left steel wire fixing block, 4-right steel wire fixing block, 5-steel wire rope, 6-steel wire hole, 7-core hole, 8-core shaft, 9-steel wire positioning cap, 10-left circular counter bore and 11-right circular counter bore.

Detailed Description

The technical solution 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 some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution:

a deep hole processing drill bit comprises a drill bit connecting rod 1, a drill bit 2, a left steel wire fixing block 3, a right steel wire fixing block 4 and a steel wire rope 5, wherein the end part of the drill bit 2 is connected to the bottom of the drill bit connecting rod 1, a steel wire hole 6 is formed in the center of the end surface of the drill bit connecting rod 1, a core hole 7 is formed in the center of the bottom of the drill bit 2, a core shaft 8 is assembled inside the core hole 7, the end part of the core shaft 8 is welded to the bottom of the steel wire rope 5, the end part of the steel wire rope 5 sequentially passes through the core hole 7 and the steel wire hole 6 from bottom to top and extends to the upper part of the drill bit connecting rod 1 to be welded with a steel wire positioning cap 9, a left circular counter bore 10 is formed in the center of the right side wall of the left steel wire fixing block 3, a right circular counter bore 11 is formed in the center of the, the steel wire rope 5 and the steel wire positioning cap 9 are respectively arranged between the left round counter bore 10 and the right round counter bore 11; dabber 8 is two-stage step shaft and first step shaft is the one sixth of second step shaft, and core hole 7 is the step hole and be interference fit with dabber 8's cooperation mode, and dabber 8 is the quarter of 2 lengths of drill bit, and the material that dabber 8 adopted is the same with the material that drill bit 2 adopted, and its effect lies in, can keep unanimous with the drill bit, normally polishes the drill bit, guarantees the high efficiency work of drill bit 2.

The utility model discloses work flow: when the drilling device is used, as shown in fig. 1, the drill bit connecting rod 1, the left steel wire fixing block 3 and the right steel wire fixing block 4 are clamped on a machine head of the drilling device, and after the drill bit is broken, the steel wire hole 6 and the core hole 7 are in a communicating structure and are in clearance fit with the steel wire rope 5; the core shaft 8 is a two-stage stepped shaft, the first-stage shaft is one sixth of the second-stage shaft, the core hole 7 is a stepped hole, the matching mode of the core shaft 8 is interference fit, a circular counter bore is formed between a left circular counter bore 10 and a right circular counter bore 11, and the core hole is respectively connected with the steel wire rope 5 and the steel wire positioning cap 9 in a rotating mode, the drill bit connecting rod 1, the left steel wire fixing block 3 and the right steel wire fixing block 4 clamped by the head of the drilling device are rotated relative to the steel wire rope 5 and the steel wire positioning cap 9, the machine is stopped at the moment, the drill bit connecting rod 1, the left steel wire fixing block 3 and the right steel wire fixing block 4 clamped by the head of the drilling device are vertically pulled upwards, so that the broken part of the drill bit connected with the steel wire rope 5 is driven to be pulled out from a deep hole, the process is realized by forming a, the broken drill bit and the connecting rod are in a connected state, so that the problem that the drill bit is broken easily in a deep hole when the traditional drill bit drills to a certain depth or works for a long time, and the drill bit is broken inside the deep hole by a special tool is solved, the operation is simple, time and labor are saved, and the working efficiency is low.

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 a deep hole processing drill bit, includes drill bit connecting rod (1), drill bit (2), left steel wire fixed block (3), right steel wire fixed block (4) and wire rope (5), its characterized in that: the end part of the drill bit (2) is connected to the bottom of the drill bit connecting rod (1), a steel wire hole (6) is formed in the center of the end face of the drill bit connecting rod (1), a core hole (7) is formed in the center of the bottom of the drill bit (2), a core shaft (8) is assembled inside the core hole (7), the end part of the core shaft (8) is welded to the bottom of the steel wire rope (5), the end part of the steel wire rope (5) sequentially passes through the core hole (7) and the steel wire hole (6) from bottom to top and extends to the upper part of the drill bit connecting rod (1) to be welded with a steel wire positioning cap (9), a left circular counter bore (10) is formed in the center of the right side wall of the left steel wire fixing block (3), a right circular counter bore (11) is formed in the center of the left side wall of the right steel wire fixing block, the drill bit connecting rod is characterized in that the left steel wire fixing block (3) and the right steel wire fixing block (4) are correspondingly arranged at the end parts of the drill bit connecting rod (1), and the steel wire rope (5) and the steel wire positioning cap (9) are respectively arranged between the left circular counter bore (10) and the right circular counter bore (11).

2. A deep-hole machining drill according to claim 1, characterized in that: the drill bit connecting rod (1) and the drill bit (2) are of an integrally formed structure.

3. A deep-hole machining drill according to claim 1, characterized in that: the steel wire hole (6) and the core hole (7) are of a communicating structure and are in clearance fit with the steel wire rope (5).

4. A deep-hole machining drill according to claim 1, characterized in that: the drill bit is characterized in that the mandrel (8) is a two-stage stepped mandrel, the first-stage shaft is one sixth of the second-stage shaft, the mandrel hole (7) is a stepped hole and is in interference fit with the mandrel (8), the mandrel (8) is one fourth of the length of the drill bit (2), and the mandrel (8) is made of the same material as the drill bit (2).

5. A deep-hole machining drill according to claim 1, characterized in that: the left round counter bore (10) and the right round counter bore (11) form a round counter bore, and are respectively connected with the steel wire rope (5) and the steel wire positioning cap (9) in a rotating mode.