CN216176933U

CN216176933U - Multi-head alloy drill bit

Info

Publication number: CN216176933U
Application number: CN202122070670.9U
Authority: CN
Inventors: 曹晔
Original assignee: Changzhou Hairun Precision Tool Technology Co ltd
Current assignee: Changzhou Hairun Precision Tool Technology Co ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2022-04-05
Anticipated expiration: 2031-08-30

Abstract

The utility model discloses a multi-head alloy drill bit which comprises a machine head and a machine cover, wherein the machine cover is movably connected to the top end of the machine head, a main shaft is arranged in the middle of the machine cover in an inserting mode, a driving gear is fixedly connected to the bottom end of the main shaft, a clamping boss is fixedly connected to the bottom end of the machine head, a shaft sleeve is fixedly connected to the bottom end of the main shaft and rotatably connected with the clamping boss, auxiliary gears are rotatably connected to the left side and the right side of the driving gear respectively, clamping grooves are formed in the middle of the auxiliary gears respectively, clamping blocks are arranged in the clamping grooves respectively, drill bits are fixedly connected to the lower ends of the clamping blocks respectively, the lower ends of the drill bits are inserted into the lower end of the machine head in an inserting mode, and cutting edges are arranged on the periphery of the lower ends of the drill bits respectively. The multi-head alloy drill bit provided by the utility model solves the problems that a single drill bit is inconvenient to replace quickly and conveniently in use, the assembling and disassembling processes of the drill bit are complicated, the use is not convenient enough, the trouble in use is increased, and the practicability is high.

Description

Multi-head alloy drill bit

Technical Field

The utility model relates to the technical field of drill bits, in particular to a multi-head alloy drill bit.

Background

The hard alloy drill bit is generally used for processing or forming some formed equipment, adopts the high hardness of alloy, and then uses the shape of an alloy head to drill holes, and the drill bit is a tool for drilling through holes or blind holes on solid materials and reaming the existing holes. Commonly used drill bits mainly include twist drills, flat drills, center drills, deep hole drills, and trepanning drills.

When the multi-head alloy drill bit is used, the single drill bit is not convenient to replace quickly and conveniently, the drill bit assembling and disassembling process is complex, the multi-head alloy drill bit is not convenient to use, trouble in use is increased, and the multi-head alloy drill bit is poor in practicability.

To solve the above problem, a multi-bit alloy drill is proposed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a multi-head alloy drill bit.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a multi-head type alloy drill bit comprises a machine head and a machine cover, wherein the machine cover is movably connected to the top end of the machine head, a main shaft is inserted into the middle of the machine cover, a driving gear is fixedly connected to the bottom end of the main shaft, a clamping protrusion is fixedly connected to the bottom end inside the machine head, a shaft sleeve is fixedly connected to the bottom end of the main shaft, and the shaft sleeve is rotatably connected with the clamping protrusion;

the driving gear left and right sides all rotates and is connected with the pinion, the pinion middle part all is equipped with the draw-in groove, the inside fixture block that all is equipped with of draw-in groove, the equal fixedly connected with drill bit of fixture block lower extreme, and the drill bit lower extreme all alternates in the aircraft nose lower extreme, drill bit lower extreme periphery all is equipped with the cutting edge.

In the above technical scheme, preferably, the shaft sleeve and the clamping protrusion are in a mutual embedding relationship, and the lower end of the pinion is provided with the clamping protrusion.

In the above technical scheme, preferably, the clamping groove and the clamping block are in a mutually clamping relationship, and the left side and the right side of the clamping block are in a parallel relationship.

In the above technical solution, preferably, the pinion is symmetrically distributed on the left and right sides of the driving gear with the driving gear as an axial centerline.

In the above technical solution, preferably, the pinion gears and the driving gear are in a movable meshing relationship with each other.

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

1. through the use of the fixture block, pinion and the draw-in groove that set up, when changing the drill bit, the accessible is with cover and aircraft nose split, proposes the fixture block perpendicularly to the pinion upper end afterwards to with the drill bit separation take out from the draw-in groove, during the installation drill bit, can put into the draw-in groove with the drill bit is whole perpendicularly, through the block effect of fixture block and draw-in groove, make the fixture block firm with the pinion block, increased the convenience of dismantling the drill bit dress, the practicality is strong.

Drawings

FIG. 1 is an overall structure view of a multi-head alloy drill according to the present invention;

FIG. 2 is a schematic view of the internal structure of the handpiece of FIG. 1;

FIG. 3 is a schematic view of the drive gear of FIG. 2 in a disassembled configuration;

FIG. 4 is a schematic diagram of a disassembled structure of the pinion and the fixture block in FIG. 3;

in the figure: 1. a machine head; 101. clamping convex; 2. a machine cover; 3. a main shaft; 301. a shaft sleeve; 4. a drill bit; 5. a cutting edge; 6. a drive gear; 7. a pinion gear; 701. a card slot; 8. and (7) clamping blocks.

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.

Referring to fig. 1-4, a bull formula alloy drill bit, includes aircraft nose 1 and cover 2, cover 2 swing joint in aircraft nose 1 top, cover 2 middle part alternates and is equipped with

main shaft

3, 3 bottom fixedly connected with drive gear 6 of main shaft, the protruding 101 of the inside bottom fixedly connected with card of

aircraft nose

1, 3 bottom fixedly connected with axle sleeves 301 of main shaft, axle sleeves 301 and the protruding 101 rotation of card are connected.

The auxiliary gears 7 are symmetrically distributed on the left side and the right side of the driving gear 6 by taking the driving gear 6 as an axial central line, and the auxiliary gears 7 and the driving gear 6 are in a mutually movable meshing relationship.

Cover 2 and aircraft nose 1 are detachable construction, and then can change drill bit 4, and when using, the accessible carries out the fixation clamp dress with main shaft 3 and outside motor chuck, drives drive gear 6 through outside drive device drive main shaft 3 and rotates, and then two pinion 7's rotation about simultaneous drive control, make drill bit 4 can carry out drilling operation simultaneously.

The driving gear 6 left and right sides all rotates and is connected with pinion 7, and pinion 7 middle part all is equipped with draw-in groove 701, and draw-in groove 701 is inside all to be equipped with fixture block 8, and the equal fixedly connected with drill bit 4 of 8 lower extremes of fixture block, and 4 lower extremes of drill bit all alternate in 1 lower extreme of aircraft nose, and 4 lower extreme peripheries of drill bit all are equipped with cutting edge 5.

The shaft sleeve 301 and the locking protrusion 101 are in a mutual embedding relationship, the locking protrusions 101 are arranged at the lower ends of the pinions 7, the locking grooves 701 and the locking blocks 8 are in a mutual locking relationship, and the left side and the right side of each locking block 8 are in a parallel relationship.

When changing drill bit 4, the accessible is with

cover

2 and 1 split of aircraft nose, propose fixture block 8 perpendicularly to pinion 7 upper end afterwards, thereby separate drill bit 4 from draw-in groove 701 and take out, during installation drill bit 4, can put into draw-in groove 701 with drill bit 4 is whole perpendicularly, block effect through fixture block 8 and draw-in groove 701 makes the firm 7 block with pinion of fixture block 8, avoid fixture block 8 to take place to rotate in pinion 7, thereby make drill bit 4 more stable when drilling, therefore, the practicality is strong.

The working principle is that when the internal components of the equipment are used, the internal components are controlled by external driving equipment, the cover 2 and the machine head 1 are of a detachable structure, so that the drill bit 4 can be replaced, when the equipment is used, the main shaft 3 and an external motor chuck are fixedly clamped, the main shaft 3 is driven by the external driving equipment to drive the driving gear 6 to rotate, and then the left pinion gear 7 and the right pinion gear 7 are driven to rotate simultaneously, so that the drill bit 4 can be drilled simultaneously, when the drill bit 4 is replaced, the cover 2 and the machine head 1 can be disassembled, then the fixture block 8 is vertically lifted towards the upper end of the pinion gear 7, so that the drill bit 4 is separated and taken out from the clamp groove 701, when the drill bit 4 is installed, the whole drill bit 4 can be vertically placed into the clamp groove 701, the fixture block 8 is firmly clamped with the pinion gear 7 through the clamping action of the fixture block 8 and the clamp groove 701, so as to avoid the fixture block 8 from rotating in the pinion gear 7, thereby making the drill 4 more stable while drilling.

The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, which indicate orientations or positional relationships, are used based on the orientations or positional relationships shown in the drawings only for the convenience of describing the present invention and for the simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

In the description herein, the appearances of the phrases "one embodiment," "some embodiments," "a specific embodiment," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment or example, but rather to the same embodiment or example. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The multi-head type alloy drill bit comprises a machine head (1) and a machine cover (2), and is characterized in that the machine cover (2) is movably connected to the top end of the machine head (1), a main shaft (3) is arranged in the middle of the machine cover (2) in an inserting mode, a driving gear (6) is fixedly connected to the bottom end of the main shaft (3), a clamping protrusion (101) is fixedly connected to the bottom end inside the machine head (1), a shaft sleeve (301) is fixedly connected to the bottom end of the main shaft (3), and the shaft sleeve (301) is rotatably connected with the clamping protrusion (101);

the utility model discloses a drilling machine, including drive gear (6), drive gear (7) left and right sides all rotate and be connected with pinion (7), pinion (7) middle part all is equipped with draw-in groove (701), draw-in groove (701) inside all is equipped with fixture block (8), the equal fixedly connected with drill bit (4) of fixture block (8) lower extreme, and drill bit (4) lower extreme all alternates in aircraft nose (1) lower extreme, drill bit (4) lower extreme periphery all is equipped with cutting edge (5).

2. The multi-head alloy drill bit as claimed in claim 1, wherein the shaft sleeve (301) and the clamping protrusions (101) are in a mutual embedding relationship, and the lower ends of the pinion gears (7) are provided with the clamping protrusions (101).

3. The multi-headed alloy drill according to claim 1, wherein the locking groove (701) and the locking block (8) are in a mutually locking relationship, and the left and right sides of the locking block (8) are in a parallel relationship.

4. The multi-head alloy drill bit as claimed in claim 1, wherein the pinion gears (7) are symmetrically distributed on the left side and the right side of the driving gear (6) by taking the driving gear (6) as an axial center line.

5. A multi-headed alloy bit as claimed in claim 1, characterised in that the pinion gears (7) are in a mutually movable meshing relationship with the drive gear (6).