CN215545191U

CN215545191U - Deep hole processing drill bit

Info

Publication number: CN215545191U
Application number: CN202121939635.XU
Authority: CN
Inventors: 王瑨
Original assignee: Wuhan Anuo Precision Tools Co ltd
Current assignee: Wuhan Anuo Precision Tools Co ltd
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2022-01-18
Anticipated expiration: 2031-08-18

Abstract

The utility model discloses a deep hole processing drill bit, which adopts the technical scheme that: including integrated into one piece's connection end and cutting end, set up two symmetric distribution's incision on the cutting end, the incision extends to connecting the end lateral wall, the square groove has been seted up to the incision inner wall, the threaded hole has been seted up to the square groove inner wall, the inside sliding connection of recess has the movable block, movable block edge fixedly connected with spring, spring one end and square groove inner wall fixed connection, square notch has been seted up at the movable block edge, a BTA drill bit's beneficial effect is: through seting up the square groove at the incision inner wall to at square groove internally mounted movable block and square blade, slide the movable block and can change square blade edge and rotate square blade when square blade wearing and tearing, and loosen the movable block and carry out the relocation to square blade, whole easy operation saves time, has avoided the wearing and tearing of bolt or screw hole simultaneously.

Description

Deep hole processing drill bit

Technical Field

The utility model relates to the technical field of drill bits, in particular to a deep hole machining drill bit.

Background

Deep hole machining is a hole having a diameter ratio of the length of the hole to the diameter of the hole of more than 6. In deep hole machining, the depth-diameter ratio L/d is more than or equal to 100 under most conditions. Such as cylinder bores, axial shaft bores, hollow spindle bores and hydraulic valve bores, etc. Some of the holes require high machining precision and surface quality, some materials to be machined are poor in cutting machinability, and the deep hole machining drill bit is often a big problem in production, needs to have high strength characteristics, is generally provided with a blade through a screw at the end of the drill bit, mainly cuts through the blade during drilling, and sprays cutting fluid at the end of the drill bit during drilling to realize cooling and chip cleaning.

The prior art has the following defects: the current blade produces wearing and tearing at drilling in-process, need to use after the blade change edge, will need to demolish the screw on the blade this moment, and the process is time-consuming, and the dismouting is many times simultaneously easily causes screw and screw ageing.

Therefore, it is necessary to design a deep hole drilling bit to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a deep hole processing drill bit, which is characterized in that a square groove is formed in a cut, a square blade and a movable block are arranged in the square groove, the blade is rotated after the movable block is moved when the edge of the blade is abraded, the blade is replaced by the abraded edge, and the movable block is loosened to limit the blade, so that the problems that the existing blade is abraded in the drilling process, the blade needs to be used after the edge is replaced, the screw on the blade needs to be removed at the moment, the process is time-consuming, and the screw hole are easy to age due to repeated dismounting are solved.

In order to achieve the above purpose, the utility model provides the following technical scheme: the utility model provides a deep hole processing drill bit, includes integrated fashioned connection end and cutting end, set up two symmetric distribution's incision on the cutting end, the incision extends to connecting the end lateral wall, the square groove has been seted up to the incision inner wall, square groove inner wall set up threaded hole, square inslot portion sliding connection has the movable block, movable block edge fixedly connected with spring, spring one end and square inslot wall fixed connection, square notch has been seted up at the movable block edge, the inside square blade that is provided with of square notch, square blade passes through connecting piece and square inslot wall connection.

Preferably, the inner wall of the square groove is provided with a sliding groove, and the edge of the movable block is fixedly connected with a sliding block matched with the sliding groove.

Preferably, the connecting piece comprises a bolt, a bearing is sleeved on the bolt, the bolt sequentially penetrates through the blade and is in threaded connection with the threaded hole, and the bolt is movably connected with the blade through the bearing.

Preferably, the end part of the connecting end head is provided with a slotted hole, the inner wall of the notch is provided with a through hole, and the through hole is communicated with the slotted hole.

Preferably, the end part of the connecting end is provided with two symmetrically distributed connecting grooves, and the inner wall of each connecting groove is provided with a mounting hole.

Preferably, the cutting tip has a cross-sectional diameter greater than the cross-sectional diameter of the coupling tip.

Preferably, the surface of the movable block is provided with an operation hole.

The utility model has the beneficial effects that:

according to the utility model, the square groove is formed in the inner wall of the notch, the movable block and the square blade are arranged in the square groove, when the square blade is worn, the movable block is slid and the square blade is rotated, so that the edge of the square blade can be replaced, and the movable block is loosened to reposition the square blade, so that the whole operation is simple and time-saving, and meanwhile, the abrasion of a bolt or a threaded hole is avoided.

Drawings

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

FIG. 2 is a schematic structural diagram of a square groove provided in the present invention;

FIG. 3 is a schematic structural view of a connector according to the present invention;

fig. 4 is a side view provided by the present invention.

In the figure: 1 connecting end, 2 cutting end, 3 cuts, 4 square grooves, 5 threaded holes, 6 movable blocks, 7 springs, 8 square blades, 9 sliding grooves, 10 sliding blocks, 11 bolts, 12 bearings, 13 slotted holes, 14 through holes, 15 connecting grooves, 16 mounting holes and 17 operating holes.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Referring to the attached drawings 1-4, the deep hole processing drill provided by the utility model comprises a connecting end head 1 and a cutting end head 2 which are integrally formed, wherein two notches 3 are symmetrically distributed on the cutting end head 2, the inner wall of each notch 3 in practical application comprises a transverse side wall, a longitudinal side wall and an oblique side wall, the notches 3 extend to the side wall of the connecting end head 1, the inner wall of each notch 3 is provided with two square grooves 4, the number of the square grooves 4 in practical application is two, the square grooves 4 are respectively arranged on the transverse side wall and the longitudinal side wall, the inner wall of each square groove 4 is provided with a threaded hole 5, a movable block 6 is slidably connected inside each square groove 4, the edge of each movable block 6 is fixedly connected with a spring 7, one end of each spring 7 is fixedly connected with the inner wall of each square groove 4, the edge of each movable block 6 is provided with a square notch, and the number of the square notches is set according to practical requirements, the square notch is internally provided with a square blade 8, and the square blade 8 is connected with the inner wall of the square groove 4 through a connecting piece.

Furthermore, a sliding groove 9 is formed in the inner wall of the square groove 4, and a sliding block 10 matched with the sliding groove 9 is fixedly connected to the edge of the movable block 6.

Further, the connecting piece includes bolt 11, the bearing 12 has been cup jointed on the bolt 11, bolt 11 runs through the blade in proper order and with 5 threaded connection of screw hole, bolt 11 passes through bearing 12 and blade swing joint, utilizes the connecting piece can realize the installation of square blade 8, and square blade 8 can't rotate at the spacing of movable block 6 under the initial condition, can rotate square blade 8 and carry out angle modulation after movable block 6 removes.

Furthermore, slotted holes 13 are formed in the end portions of the connecting end heads 1, through holes 14 are formed in the inner walls of the notches 3, the through holes 14 are communicated with the slotted holes 13, the through holes 14 are formed in the oblique side walls in practical application, and cutting fluid can circulate through the through holes 14 and the slotted holes 13, so that cooling and debris cleaning are achieved.

Furthermore, two symmetrically distributed connecting grooves 15 are formed in the end portion of the connecting end 1, and a mounting hole 16 is formed in the inner wall of each connecting groove 15.

Further, the cutting tip 2 has a larger cross-sectional diameter than the connecting tip 1.

Further, the surface of the movable block 6 is provided with an operation hole 17, and in actual operation, a screwdriver can be inserted into the operation hole 17 to move the movable block 6, so that the practicability is high.

The using process of the utility model is as follows: when the square blade 8 is used, when the edge of the square blade 8 is worn, the movable block 6 can be slid to enable the movable block 6 to move along the sliding groove 9, the spring 7 is compressed until the square blade 8 is positioned outside the square notch, then the square blade 8 is rotated, the movable block 6 is loosened after the unworn edge is adjusted to a proper position, the movable block 6 is reset under the elastic force of the spring 7, and the square notch is used for limiting the square blade 8.

The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solution described above. Therefore, any simple modifications or equivalent substitutions made in accordance with the technical solution of the present invention are within the scope of the claims of the present invention.

Claims

1. The utility model provides a BTA drill bit, includes integrated into one piece's connection end (1) and cutting end (2), its characterized in that: offer incision (3) of two symmetric distributions on cutting end (2), incision (3) extend to connecting end (1) lateral wall, square groove (4) have been seted up to incision (3) inner wall, square groove (4) inner wall set up threaded hole (5), square groove (4) inside sliding connection has movable block (6), movable block (6) edge fixedly connected with spring (7), spring (7) one end and square groove (4) inner wall fixed connection, square notch has been seted up at movable block (6) edge, square notch inside is provided with square blade (8), square blade (8) are through connecting piece and square groove (4) inner wall connection.

2. A deep-hole machining drill according to claim 1, characterized in that: the inner wall of the square groove (4) is provided with a sliding groove (9), and the edge of the movable block (6) is fixedly connected with a sliding block (10) matched with the sliding groove (9).

3. A deep-hole machining drill according to claim 1, characterized in that: the connecting piece comprises a bolt (11), a bearing (12) is sleeved on the bolt (11), the bolt (11) penetrates through the blade in sequence and is in threaded connection with the threaded hole (5), and the bolt (11) is movably connected with the blade through the bearing (12).

4. A deep-hole machining drill according to claim 1, characterized in that: slotted holes (13) are formed in the end portions of the connecting end heads (1), through holes (14) are formed in the inner walls of the notches (3), and the through holes (14) are communicated with the slotted holes (13).

5. A deep-hole machining drill according to claim 1, characterized in that: two symmetrically distributed connecting grooves (15) are formed in the end portion of the connecting end (1), and mounting holes (16) are formed in the inner walls of the connecting grooves (15).

6. A deep-hole machining drill according to claim 1, characterized in that: the diameter of the cross section of the cutting end head (2) is larger than that of the cross section of the connecting end head (1).

7. A deep-hole machining drill according to claim 1, characterized in that: the surface of the movable block (6) is provided with an operation hole (17).