CN210280797U

CN210280797U - Integrated drill bit for milling hole and chamfering

Info

Publication number: CN210280797U
Application number: CN201920432181.3U
Authority: CN
Inventors: 邱小川; 谢爱民
Original assignee: Yangzhou Kangpaier Machinery Technology Co ltd
Current assignee: Yangzhou Kangpaier Machinery Technology Co ltd
Priority date: 2019-04-01
Filing date: 2019-04-01
Publication date: 2020-04-10
Anticipated expiration: 2029-04-01

Abstract

The utility model discloses an integrated drill bit for milling hole and chamfering, which comprises a butt joint seat, a balance table, a drill bit base body and a blade which are connected in sequence; the butt joint seat, the balance table and the drill bit base body are internally provided with cooling liquid channels; a water outlet is arranged on the balance table and is communicated with the cooling liquid channel; the drill bit base body is provided with a cooling hole which is communicated with the cooling liquid channel; the side of the drill bit base body is provided with a chamfer head. The utility model discloses to punch and chamfer twice technology is synthetic one, practiced thrift production time, improved production efficiency. And an inner cooling structure is arranged in the drill bit, so that the drill bit under the condition of telling operation is effectively prevented, the drill bit is prevented from being overheated, and the service life of the drill bit is prolonged.

Description

Integrated drill bit for milling hole and chamfering

Technical Field

The utility model belongs to the technical field of machining, especially, relate to an integral type drill bit that milling hole chamfer was used entirely.

Background

Punching and chamfering are two most common procedures for machining mechanical parts. The number of machined parts is large, one-time punching and one-time chamfering are performed, and time and labor are wasted when workpieces are assembled and disassembled at stations. Therefore, an integrated drill bit with full application of hole milling and chamfering is needed, and machining efficiency is improved.

Disclosure of Invention

Aiming at the actual production requirement, the integrated drill bit with the fully-applied milling hole and chamfer is provided, the drilling and the chamfering are completed simultaneously, and the production efficiency is improved.

The technical scheme of the utility model is that: an integrated drill bit for milling holes and chamfering fully comprises a butt joint seat, a balance table, a drill bit base body and a cutter head which are sequentially connected; the butt joint seat, the balance table and the drill bit base body are internally provided with cooling liquid channels; a water outlet is arranged on the balance table and is communicated with the cooling liquid channel; the drill bit base body is provided with a cooling hole which is communicated with the cooling liquid channel; the side of the drill bit base body is provided with a chamfer head.

Furthermore, the butt joint seat is provided with external threads, the balance table is provided with a fixing hole with internal threads, and the butt joint seat is connected with the balance table through the threads.

Furthermore, the butt joint seat and the balance table are both internally provided with a hollow which is communicated up and down, and the drill bit matrix is internally provided with a cylindrical hollow; the hollow connecting bodies form a cooling liquid channel.

Furthermore, a plurality of cooling liquid branch channels which are gradually inclined downwards from the axis of the balancing table to the periphery are arranged in the balancing table, one end of each cooling liquid branch channel is communicated with the corresponding cooling liquid channel, and the other end of each cooling liquid branch channel is communicated with a water outlet on the surface of the balancing table.

Furthermore, the drill bit base body is cylindrical, the bottom of the drill bit base body is provided with a notch matched with the cutter head, the cutter head is inserted into the notch, and the cutter head is fastened by penetrating the notch and the cutter head through screws.

Furthermore, the chamfer head protrudes out of the surface of the drill base body, the section of the chamfer head is in a right trapezoid shape, and the acute angle of the right trapezoid is directed to the cutter head.

Furthermore, the water outlet surrounds the drill bit base body for one circle; a plurality of connecting channels are arranged in the drill bit base body and are communicated with the cooling liquid channel and the water outlet.

Has the advantages that: the utility model discloses to punch and chamfer twice technology is synthetic one, practiced thrift production time, improved production efficiency. And an inner cooling structure is arranged in the drill bit, so that the drill bit under the condition of telling operation is effectively prevented, the drill bit is prevented from being overheated, and the service life of the drill bit is prolonged.

Description of the drawings:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a schematic view of the connection between the tool bit and the drill base body according to the present invention.

Reference numerals: 1-a docking station; 2-a balancing stand; 3-a drill bit base body; 4-chamfering the head; 5-a cutter head; 6-water outlet; 7-cooling holes; 8-coolant channels; 31-a notch; 32-screws; 81-coolant bypass channel.

The specific implementation mode is as follows:

the present invention will be further clarified by the following description with reference to the attached drawings and specific examples, which should be understood as being merely illustrative of the present invention and not limiting the scope of the present invention, and modifications of various equivalent forms of the present invention by those skilled in the art after reading the present invention, all fall within the scope defined by the appended claims of the present application.

As shown in fig. 1, the integrated drill bit for milling, chamfering and full application comprises a butt joint seat 1, a balance table 2, a drill bit base body 3 and a cutter head 5 which are sequentially connected; the butt joint seat 1, the balance table 2 and the drill bit base body 3 are internally provided with cooling liquid channels 8; a water outlet 6 is arranged on the balance table 2, and the water outlet 6 is communicated with a cooling liquid channel 8; a cooling hole 7 is formed in the drill bit base body 3, and the cooling hole 7 is communicated with a cooling liquid channel 8; the side of the drill base body 3 is provided with a chamfer head 4.

The butt joint seat 1 is provided with external threads, the balance table 2 is provided with a fixing hole with internal threads, and the butt joint seat 1 is in threaded connection with the balance table 2. The butt joint seat 1 and the balance table 2 are both internally provided with a hollow which is communicated up and down, and the drill bit matrix 3 is internally provided with a cylindrical hollow; hollow and connected together to form a cooling liquid channel 8. A plurality of cooling liquid branch channels 81 which are gradually inclined downwards from the axis of the balancing table 2 to the periphery are arranged in the balancing table 2, one end of each cooling liquid branch channel 81 is communicated with the corresponding cooling liquid channel 8, and the other end of each cooling liquid branch channel 81 is communicated with a water outlet 6 on the surface of the balancing table. The drill base body 3 is cylindrical, a notch 31 matched with the cutter head 5 is formed in the bottom of the drill base body, the cutter head 5 is inserted into the notch 31, and the screw 32 penetrates through the notch 31 and the cutter head 5 to fasten the cutter head 5. The chamfer head 4 protrudes out of the surface of the drill bit base body 3 and is connected with the drill bit base body by adopting a welding or integrated forming method. The section of the chamfer head 4 is a right trapezoid, and the acute angle of the right trapezoid points to the cutter head 5. The water outlet 6 surrounds the drill bit base body for a circle; a plurality of connecting channels are arranged in the drill bit base body 3 and are communicated with the cooling liquid channel 8 and the water outlet 7.

The utility model discloses an operation process does: the butt joint seat 1 is connected with a machine, and the machine drives the butt joint seat 1 to rotate, so that the whole drill bit rotates. The cooling liquid enters the cooling liquid channel 8 and flows out of the drill bit from two positions. One is a water outlet 6 on the balance table 2, and the other is a cooling port 7 at the lower end of the drill bit basal body 3. The coolant liquid of 6 departments of balancing stand delivery port can cool off the drill bit outside, and the coolant liquid erodes the processing piece, can prevent effectively that the piece from blockking up the cold cooling mouth that is located the lower extreme. The coolant liquid at the cooling port 7 directly scours the cutter head 5 to prevent the cutter head 5 from overheating. The cooling port 7 faces the periphery, the same direction as the flying direction of the chips is achieved, the probability that the chips fly into the cooling port 7 is low, and blockage is avoided.

The cutter head 5 rotates to complete workpiece punching. The drill bit base body 3 gradually enters the hole, and the chamfering head 4 gradually completes the chamfering process under high-speed rotation. Subsequently, the drill base body 3 is gradually withdrawn from the hole. And the punching and chamfering processes are completed simultaneously. Time and labor are saved, and the working efficiency is improved.

Claims

1. The utility model provides an integral type drill bit that milling hole chamfer was used entirely which characterized in that: comprises a butt joint seat (1), a balance table (2), a drill bit base body (3) and a cutter head (5) which are connected in sequence; the butt joint seat (1), the balance table (2) and the drill bit base body (3) are internally provided with cooling liquid channels (8); a water outlet (6) is formed in the balance table (2), and the water outlet (6) is communicated with a cooling liquid channel (8); the drill bit base body (3) is provided with a cooling hole (7), and the cooling hole (7) is communicated with a cooling liquid channel (8); the side surface of the drill bit base body (3) is provided with a chamfer head (4).

2. The milling bore and chamfer all purpose integral drill bit of claim 1, wherein: the butt joint base is characterized in that external threads are arranged on the butt joint base (1), a fixing hole with internal threads is formed in the balance table (2), and the butt joint base (1) is connected with the balance table (2) through threads.

3. The milling bore and chamfer all purpose integral drill bit of claim 1, wherein: the butt joint seat (1) and the balance platform (2) are internally provided with a hollow which is communicated up and down, and the drill bit base body (3) is internally provided with a cylindrical hollow; the hollows are connected together to form a cooling liquid channel (8).

4. The milling bore and chamfer all purpose integral drill bit of claim 1, wherein: be equipped with a plurality of by balancing stand (2) axle center to coolant liquid tributary passageway (81) of downward sloping gradually all around in balancing stand (2), coolant liquid tributary passageway (81) one end and coolant liquid passageway (8) intercommunication, the other end leads to delivery port (6) on balancing stand surface.

5. The milling bore and chamfer all purpose integral drill bit of claim 1, wherein: drill bit base member (3) are cylindric, and its bottom is equipped with one and the breach (31) of tool bit (5) adaptation, tool bit (5) insert breach (31) department, run through breach (31) and tool bit (5) through screw (32), realize tool bit (5) fastening.

6. The milling bore and chamfer all purpose integral drill bit of claim 1, wherein: the chamfering head (4) protrudes out of the surface of the drill base body (3), the section of the chamfering head (4) is in a right trapezoid shape, and the acute angle of the right trapezoid points to the cutter head (5).

7. The milling bore and chamfer all purpose integral drill bit of claim 1, wherein: the water outlet (6) surrounds the drill bit base body for one circle; the drill bit base body (3) is internally provided with a plurality of connecting channels which are communicated with the cooling liquid channel (8) and the water outlet (6).