CN217913001U

CN217913001U - Can avoid smooth silk and removable alloy drill bit of tool bit

Info

Publication number: CN217913001U
Application number: CN202221287480.0U
Authority: CN
Inventors: 梅永刚; 朱锋伟; 刘亚运
Original assignee: Changzhou Frante Tools Co ltd
Current assignee: Changzhou Frante Tools Co ltd
Priority date: 2022-05-26
Filing date: 2022-05-26
Publication date: 2022-11-29
Anticipated expiration: 2032-05-26

Abstract

The utility model discloses a can avoid smooth silk and removable alloy drill bit of tool bit, including drill seat and tool bit. The utility model has the advantages that: the centre gripping concave surface is the symmetric distribution on the clamping base surface, can make the clamping base more firm of centre gripping on the drilling machine, sleeve and tool bit are detachable clamping connection through locking bolt and the square groove and the square convex block that correspond, it is firm to connect, and make things convenient for the later stage to change and maintain the tool bit, the tool bit is twolip conical head structure, and the tool bit adopts tungsten carbide steel carbide material to make, improve tool bit hardness, increase its machinable application scope, the heliciform chip-withdrawing groove has been seted up on the tool bit surface, can make the drill chip discharge along with the rotary cutting of tool bit, improve drilling efficiency, two louvres have been seted up to the cutting edge face, and the louvre is central symmetric distribution, can accelerate the heat dissipation of tool bit, avoid the overheated damage of tool bit that long-time high-speed rotary drilling leads to.

Description

Can avoid smooth silk and removable alloy drill bit of tool bit

Technical Field

The utility model relates to a drill bit specifically is a can avoid smooth silk and removable alloy drill bit of tool bit belongs to machining cutter technical field.

Background

The drill bit is a tool for drilling a through hole or a blind hole in an entity material and reaming the existing hole, the commonly used drill bits mainly comprise a twist drill, a flat drill, a center drill, a deep hole drill and a trepanning drill, although the reaming drill and the countersinking drill can not drill the entity material, the reaming drill and the countersinking drill are also classified into the drill bits in a custom way, the process of drilling the hole in the entity material by using the drill bit is called drilling, and in a workshop, the hole processing of various parts is usually necessary, so that the drill bit is widely applied to the field of mechanical hole processing.

The existing drill bit is simple in structure:

1) The traditional tool bit and the drill base are fixed by welding, the connection is firm, but the tool bit is inconvenient to replace and maintain independently in the later period, and when the tool bit and the drill base are connected by threads, the tool bit can be replaced, but the tool bit is easy to wear and generate a thread slipping phenomenon after being used for a long time, so that the threads cannot be meshed and connected together;

2) The used cutter head surface is not provided with a chip removing groove, so that drilling cuttings are easy to accumulate in the hole, the machining efficiency is further influenced, and meanwhile, the heat dissipation performance of the cutter head is poor, so that heat generated during high-speed rotary drilling cannot be quickly dissipated, and the cutter head is easy to damage due to overheating.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an alloy drill bit which can avoid sliding wires and has a replaceable tool bit in order to solve at least one technical problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose: an alloy drill bit capable of avoiding wire slipping and provided with a replaceable tool bit comprises

The drill base consists of a disc-shaped baffle plate for preventing drill cuttings from splashing, a clamping base which is welded at the center of the upper surface of the baffle plate and is clamped and fixed on a drilling machine, and a cylindrical sleeve arranged at the center of the bottom surface of the baffle plate, wherein the bottom surface of the sleeve is provided with a square groove; and

the tool bit can carry out drilling processing and be the heliciform at the workpiece surface tool bit top fixing clip dress is in the telescopic square groove, and its bottom personally submits central symmetric distribution and has two cutting edges.

As a further aspect of the present invention: the clamping seat is characterized in that two clamping concave surfaces are arranged on the surface of the clamping seat and are symmetrically distributed.

As the utility model discloses further scheme again: the tool bit top is equipped with square convex block, the screw hole is seted up to square convex block side, the counter bore on sleeve surface is interior to be installed and to be inserted locking bolt, locking bolt passes counter bore and threaded connection in the screw hole, and sleeve and tool bit are detachable clamping connection through locking bolt and the square groove and the square convex block that correspond.

As a further aspect of the present invention: the tool bit is double-edged conical head structure, and the tool bit adopts tungsten carbide steel carbide material to make.

As the utility model discloses further scheme again: the surface of the cutter head is provided with a chip removing groove which is spiral.

As the utility model discloses further scheme again: two heat dissipation holes are formed in the cutting edge surface, and the heat dissipation holes are distributed in a centrosymmetric mode.

The utility model has the advantages that:

1) The clamping concave surfaces are symmetrically distributed on the surface of the clamping seat, so that the clamping seat can be clamped on a drilling machine more firmly, the sleeve and the tool bit are in detachable clamping connection through the locking bolt and the corresponding square groove and square convex block, the connection is stable, and the tool bit is convenient to replace and maintain in the later period;

2) The tool bit is twolip conical head structure, and the tool bit adopts tungsten carbide steel carbide material to make, improves tool bit hardness, increases its can cut application scope, and the heliciform chip groove has been seted up on the tool bit surface, can make the drill chip discharge along with the rotary cutting of tool bit, improves drilling efficiency, and two louvres have been seted up to the cutting edge face, and the louvre is central symmetric distribution, can accelerate the tool bit heat dissipation, avoids the overheated damage of tool bit that long-time high-speed rotatory drilling leads to.

Drawings

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

FIG. 2 is a schematic view of the drill base of the present invention;

FIG. 3 is a cross-sectional view of the tool bit and sleeve connection structure of the present invention;

fig. 4 is a view of the drilling end face of the tool bit of the present invention.

In the figure: 1. the clamping device comprises a baffle, 2, a clamping seat, 3, a clamping concave surface, 4, a sleeve, 5, a square groove, 6, a counter bore, 7, a locking bolt, 8, a tool bit, 9, a square bump, 10, a threaded hole, 11, a chip removing groove, 12, a cutting edge, 13 and a heat dissipation hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 efforts all belong to the protection scope of the present invention.

Example one

Referring to fig. 1 to 4, an alloy drill with replaceable cutting head capable of avoiding wire slippage comprises

The drill base consists of a disc-shaped baffle plate 1 for preventing drill cuttings from splashing, a clamping base 2 which is welded at the center of the upper surface of the baffle plate 1 and is clamped and fixed on a drilling machine, and a cylindrical sleeve 4 which is arranged at the center of the bottom surface of the baffle plate 1, wherein the bottom surface of the sleeve 4 is provided with a square groove 5; and

the tool bit 8 can carry out drilling processing and be the heliciform at the workpiece surface 8 top fixing clip dress of tool bit is in the square groove 5 of sleeve 4, and its bottom personally submits central symmetry and distributes and have two cutting edges 12.

The embodiment of the utility model provides an in, 2 surfaces of clamping seat are provided with two centre gripping concave surfaces 3, and centre gripping concave surface 3 is the symmetric distribution, can make clamping seat 2 more firm of centre gripping on the drilling machine.

The embodiment of the utility model provides an in, 8 tops of tool bit are equipped with square convex block 9, threaded hole 10 has been seted up to the side of square convex block 9, lock bolt 7 has been inserted in the counter bore 6 on sleeve 4 surface, lock bolt 7 passes counter bore 6 and threaded connection in threaded hole 10, and sleeve 4 and tool bit 8 are detachable screens through lock bolt 7 and the square groove 5 and the square convex block 9 that correspond and connect firmly, just make things convenient for the later stage to change and maintain tool bit 8.

Example two

the tool bit 8 can be drilled on the surface of a workpiece and is spiral, the top end of the tool bit 8 is fixedly clamped in the square groove 5 of the sleeve 4, and two cutting edges 12 are symmetrically distributed at the center of the bottom end surface of the tool bit.

In the embodiment of the utility model, tool bit 8 is the twolip conical head structure, and tool bit 8 adopts tungsten carbide steel carbide material to make, improves 8 hardness of tool bit, increases its can cut application scope.

The embodiment of the utility model provides an in, chip groove 11 has been seted up on the 8 surfaces of tool bit, and chip groove 11 is the heliciform, can make the drill chip discharge along with the rotatory cutting of tool bit 8, improves drilling efficiency.

The embodiment of the utility model provides an in, two louvres 13 have been seted up to cutting edge 12 face, and louvre 13 is central symmetric distribution, can accelerate the heat dissipation of tool bit 8, avoids the overheated damage of tool bit 8 that long-time high-speed rotatory drilling leads to.

The working principle is as follows: when the alloy drill bit capable of avoiding wire sliding and with the replaceable tool bit is used, firstly, the square convex block 9 of the tool bit 8 is inserted into the square groove 5 of the sleeve 4, and then the locking bolt 7 penetrates through the counter bore 6 on the surface of the sleeve 4 and is in threaded connection with the threaded hole 10 on the side face of the square convex block 9, then the clamping seat 2 is fixedly clamped on a drilling machine through the two clamping concave surfaces 3 symmetrically arranged on the surface of the clamping seat, finally the drilling machine is opened, the workpiece can be drilled through the cutting edge 12 at the bottom end of the tool bit 8, during the drilling process, the drill cuttings can be discharged along with the rotation cutting of the tool bit 8 through the spiral chip withdrawing groove 11, the drilling efficiency is improved, the heat dissipation of the tool bit 8 can be accelerated through the two heat dissipation holes 13 on the surface of the cutting edge 12, the overheating damage of the tool bit 8 caused by long-time high-speed rotation drilling is avoided, the tool bit 8 and the sleeve 4 are assembled together in a clamping and locking bolt 7 mode, the tool bit 8 is not only stable in connection, but also convenient to replace and maintain in the later period, and the wire sliding phenomenon caused by the thread abrasion can be avoided at the same time, and the practicability is better.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. 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. The utility model provides a can avoid smooth silk and removable alloy drill bit of tool bit which characterized in that: comprises that

The drill base comprises a disc-shaped baffle plate (1) for preventing drill cuttings from splashing, a clamping base (2) which is welded at the center of the upper surface of the baffle plate (1) and is clamped and fixed on a drilling machine, and a cylindrical sleeve (4) arranged at the center of the bottom surface of the baffle plate (1), wherein the bottom surface of the sleeve (4) is provided with a square groove (5); and

the tool bit (8) can be drilled on the surface of a workpiece and is spiral, the top end of the tool bit (8) is fixedly clamped in the square groove (5) of the sleeve (4), and two cutting edges (12) are symmetrically distributed at the center of the bottom end surface of the tool bit.

2. The alloy drill bit capable of avoiding sliding wires and provided with the replaceable cutter head as claimed in claim 1, wherein: the surface of the clamping seat (2) is provided with two clamping concave surfaces (3), and the clamping concave surfaces (3) are symmetrically distributed.

3. The slide-wire-avoiding and replaceable-bit alloy drill bit as set forth in claim 1, wherein: the utility model discloses a quick-witted, including tool bit (8), square convex block (9) side set up threaded hole (10), lock bolt (7) have been inserted in counter bore (6) on sleeve (4) surface, lock bolt (7) pass counter bore (6) and threaded connection in threaded hole (10), and sleeve (4) and tool bit (8) are detachable clamping connection through lock bolt (7) and square groove (5) and square convex block (9) that correspond.

4. The alloy drill bit capable of avoiding sliding wires and provided with the replaceable cutter head as claimed in claim 1, wherein: the tool bit (8) is of a double-edge conical head structure, and the tool bit (8) is made of tungsten carbide steel hard alloy materials.

5. The alloy drill bit capable of avoiding sliding wires and provided with the replaceable cutter head as claimed in claim 1, wherein: the surface of the tool bit (8) is provided with a chip removing groove (11), and the chip removing groove (11) is spiral.

6. The alloy drill bit capable of avoiding sliding wires and provided with the replaceable cutter head as claimed in claim 1, wherein: two heat dissipation holes (13) are formed in the surface of the blade (12), and the heat dissipation holes (13) are distributed in a centrosymmetric mode.