CN207709954U - A kind of whole hard alloy is threadedly coupled the drill bit of head-exchangeable - Google Patents

Abstract

The utility model discloses the drill bits that a kind of whole hard alloy is threadedly coupled head-exchangeable, including alloy bit and knife bar, one side external surface of the alloy bit is installed with guide thread, the inside of the alloy bit is installed with alloy inner core, the leading exterior surface of the alloy bit is installed with major cutting edge, the position that the side of the alloy bit is located at one end of major cutting edge is installed with auxiliary-blade, and another side external surface of the alloy bit is installed with seam allowance screw thread.A kind of whole hard alloy described in the utility model is threadedly coupled the drill bit of head-exchangeable, equipped with seam allowance screw thread, complementary screw-threads bar and connection screw thread, drill bit clamping can be made simple, it is convenient and efficient to knife, reduce cutting resistance, and drill bit fit clearance can be reduced, keep cutter clamping more stable, moreover it is possible to which clamping different size drill bit keeps knife bar versatility stronger, it is applicable in different work, brings better prospect of the application.

Description

A kind of whole hard alloy is threadedly coupled the drill bit of head-exchangeable

Technical field

The utility model is related to field of drill, more particularly to a kind of whole hard alloy is threadedly coupled the drill bit of head-exchangeable.

Background technology

The drill bit of whole hard alloy threaded connection head-exchangeable is generally used for the automobile of the high intensity of production demand In parts and precision parts manufacturing industry, and drill bit can be used for the cutting of lathe, and application range is wider；Existing entirety is hard There are certain drawbacks in the drill bit that matter alloy is threadedly coupled head-exchangeable, cutting-tool's used life is short, and the production cycle is long when in use, Excessively standardize, product renewing is slow, cost-effective, can bit change joint gap it is big, cutter is too long, and damping is bad, cut shape State is unstable, and knife bar is unable to the drill bit of clamping different size, and the versatility of knife bar is weaker, brings when in use certain It influences, for this purpose, it is proposed that a kind of whole hard alloy is threadedly coupled the drill bit of head-exchangeable.

Invention content

The main purpose of the utility model is to provide the drill bits that a kind of whole hard alloy is threadedly coupled head-exchangeable, can be with Effectively solve the problems in background technology.

To achieve the above object, the technical solution that the utility model is taken is：

A kind of whole hard alloy is threadedly coupled the drill bit of head-exchangeable, including alloy bit and knife bar, the alloy bit A side external surface be installed with guide thread, the inside of the alloy bit is installed with alloy inner core, the alloy The leading exterior surface of drill bit is installed with major cutting edge, and the position that the side of the alloy bit is located at one end of major cutting edge is fixed Auxiliary-blade is installed, another side external surface of the alloy bit is installed with seam allowance screw thread, the side of the seam allowance screw thread Outer surface is installed with reinforcing casing, and the position that the side of the seam allowance screw thread is located at the inside of reinforcing casing is installed with One side external surface of complementary screw-threads bar, the complementary screw-threads bar is installed with seam allowance connector, and the alloy bit fixes peace Mounted in a side external surface of knife bar, the side inner surface of the knife bar is equipped with connection screw thread, and the other side appearance of the knife bar is solid Surely it is connected with handle of a knife.

Preferably, the side of the knife bar is equipped with hickey, and the connection screw thread is arranged in the outer surface of hickey, And seam allowance screw thread is flexibly connected with the connection screw thread on hickey.

Preferably, the shape of the guide thread is helical form, and the quantity of the guide thread is two groups, is led described in two groups It is intertwined and connected to alloy bit is threaded through.

Preferably, the outer surface of the complementary screw-threads bar is equipped with internal thread, and complementary screw-threads bar is by internal thread through reinforcing Casing.

Preferably, the quantity of the major cutting edge and auxiliary-blade is two groups, and flank is equipped between major cutting edge described in two groups, Rake face is equipped between auxiliary-blade described in two groups.

Preferably, the alloy bit is fixedly connected by seam allowance screw thread with knife bar, and alloy bit and knife bar material are not Together.

Compared with prior art, the utility model has the advantages that：The whole hard alloy is threadedly coupled interchangeable The drill bit of head, by the way that seam allowance screw thread is arranged, alloy bit clamping is simple, and fit clearance is small, and cutter connection is more secured, and cutter is made to exist Stablize cutting in deep hole machining, efficiently accomplishes deep hole machining, while because alloy bit and knife bar are different materials, it is unstable in processing When fixed workpiece vibrations will be arrived minimum, effective damping substantially reduces the cost of charp tool, moreover, passing through seam allowance screw thread and knife bar Connection, it is convenient and efficient to knife, cutting resistance is reduced, service life is improved；Cutter hub is connect using seam allowance with internal thread, and tradition is broken through Key, flat key connection type is held to reduce fit clearance between connection, keep cutter clamping more firm；A kind of knife bar can match different size and bore Head, knife bar versatility is stronger, directly reduces cutter use cost.In the utility model, entire whole hard alloy is threadedly coupled The drill bit structure of head-exchangeable is simple, easy to operate, and the effect used is more preferable relative to traditional approach.

Description of the drawings

Fig. 1 is the overall structure diagram for the drill bit that a kind of whole hard alloy of the utility model is threadedly coupled head-exchangeable.

Fig. 2 is the alloy bit structure chart for the drill bit that a kind of whole hard alloy of the utility model is threadedly coupled head-exchangeable.

Fig. 3 is the alloy bit partial structurtes for the drill bit that a kind of whole hard alloy of the utility model is threadedly coupled head-exchangeable Figure.

Fig. 4 is the lever structure figure for the drill bit that a kind of whole hard alloy of the utility model is threadedly coupled head-exchangeable.

In figure：1, alloy bit；2, guide thread；3, alloy inner core；4, major cutting edge；5, auxiliary-blade；6, seam allowance screw thread；7、 Complementary screw-threads bar；8, seam allowance connector；9, casing is reinforced；10, knife bar；11, connection screw thread；12, handle of a knife.

Specific implementation mode

To make the technical means, creative features, achievement of purpose, and effectiveness of the utility model be easy to understand, below In conjunction with specific implementation mode, the utility model is expanded on further.

As shown in Figs 1-4, a kind of whole hard alloy is threadedly coupled the drill bit of head-exchangeable, including alloy bit 1 and knife bar 10, a side external surface of alloy bit 1 is installed with guide thread 2, and the inside of alloy bit 1 is installed with alloy inner core 3, the leading exterior surface of alloy bit 1 is installed with major cutting edge 4, and the side of alloy bit 1 is located at the position of one end of major cutting edge 4 It sets and is installed with auxiliary-blade 5, another side external surface of alloy bit 1 is installed with seam allowance screw thread 6,1 clamping of alloy bit Simply, fit clearance is small, and cutter connection is more secured, so that cutter is stablized cutting in deep hole machining, efficiently accomplishes deep hole machining, together When because alloy bit 1 and knife bar 10 be different materials, when processing unstable workpiece vibrations will be arrived minimum, effectively subtracted Shake, substantially reduces the cost of charp tool, moreover, connect with knife bar 10 by seam allowance screw thread 6, it is convenient and efficient to knife, cutting resistance is reduced, Service life is improved, cutter hub is connect using seam allowance with internal thread, and traditional end key is broken through, and flat key connection type reduces and matches between connecting Gap is closed, keeps cutter clamping more firm, a side external surface of seam allowance screw thread 6, which is installed with, reinforces casing 9, seam allowance screw thread 6 The position that side is located at the inside for reinforcing casing 9 is installed with complementary screw-threads bar 7, and a side external surface of complementary screw-threads bar 7 is solid Dingan County is equipped with seam allowance connector 8, and alloy bit 1 is fixedly mounted on a side external surface of knife bar 10, the side inner surface of knife bar 10 Equipped with connection screw thread 11, a kind of knife bar 10 can match different size drill bit, and 10 versatility of knife bar is stronger, directly reduction cutter use at This, the other side appearance of knife bar 10 is fixedly connected with handle of a knife 12.

The side of knife bar 10 is equipped with hickey, and connection screw thread 11 is arranged in the outer surface of hickey, and seam allowance screw thread 6 It is flexibly connected with the connection screw thread 11 on hickey；The shape of guide thread 2 is helical form, and the quantity of guide thread 2 is two Group, two groups of guide threads 2 are intertwined and connected by alloy bit 1；The outer surface of complementary screw-threads bar 7 is equipped with internal thread, complementary screw-threads Bar 7 is by internal thread through reinforcing casing 9；Major cutting edge 4 and the quantity of auxiliary-blade 5 are two groups, are equipped between two groups of major cutting edges 4 Flank is equipped with rake face between two groups of auxiliary-blades 5；Alloy bit 1 is fixedly connected by seam allowance screw thread 6 with knife bar 10, and is closed Golden drill bit 1 is different from 10 material of knife bar.

It should be noted that the utility model is the drill bit that a kind of whole hard alloy is threadedly coupled head-exchangeable, in use, Alloy bit 1 is mounted on knife bar 10 by the internal thread on seam allowance screw thread 6 and complementary screw-threads bar 7, seam allowance screw thread 6 and knife bar 10 connection screw thread 11 matches, and cutter is connected by seam allowance screw thread 6, and clamping is simple, and fit clearance is small, and cutter connection is more firm Gu cutter is made to stablize cutting in deep hole machining, deep hole machining is efficiently accomplished, while because alloy bit 1 and knife bar 10 are different Vibrations will be arrived minimum by material when processing unstable workpiece, and effective damping substantially reduces the cost of charp tool, moreover, passing through Seam allowance screw thread 6 is connect with knife bar 10, convenient and efficient to knife, reduces cutting resistance, improves service life, alloy bit 1 and knife bar After 10 install, cutter is fixed by handle of a knife 12, alloy bit 1 is moved by guide thread 2, then major cutting edge 4 It is cut with auxiliary-blade 5, intensity is improved in 1 inside of alloy bit using alloy inner core 3, more practical.

The advantages of basic principles and main features and the utility model of the utility model have been shown and described above.One's own profession The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model Claimed range is defined by the appending claims and its equivalent thereof.

Claims (6)

1. a kind of whole hard alloy is threadedly coupled the drill bit of head-exchangeable, including alloy bit（1）With knife bar（10）, feature exists In：The alloy bit（1）A side external surface be installed with guide thread（2）, the alloy bit（1）Inside fix Alloy inner core is installed（3）, the alloy bit（1）Leading exterior surface be installed with major cutting edge（4）, the alloy bit （1）Side be located at major cutting edge（4）The position of one end be installed with auxiliary-blade（5）, the alloy bit（1）The other side Outer surface is installed with seam allowance screw thread（6）, the seam allowance screw thread（6）A side external surface be installed with reinforcing casing（9）, The seam allowance screw thread（6）Side be located at reinforce casing（9）The position of inside be installed with complementary screw-threads bar（7）, described Complementary screw-threads bar（7）A side external surface be installed with seam allowance connector（8）, the alloy bit（1）It is fixedly mounted on knife Bar（10）A side external surface, the knife bar（10）Side inner surface be equipped with connection screw thread（11）, the knife bar（10）It is another Side appearance is fixedly connected with handle of a knife（12）.

2. a kind of whole hard alloy according to claim 1 is threadedly coupled the drill bit of head-exchangeable, it is characterised in that：It is described Knife bar（10）Side be equipped with hickey, the connection screw thread（11）It is arranged in the outer surface of hickey, and seam allowance screw thread （6）With the connection screw thread on hickey（11）Flexible connection.

3. a kind of whole hard alloy according to claim 1 is threadedly coupled the drill bit of head-exchangeable, it is characterised in that：It is described Guide thread（2）Shape be helical form, the guide thread（2）Quantity be two groups, guide thread described in two groups（2）Pass through Alloy bit（1）It is intertwined and connected.

4. a kind of whole hard alloy according to claim 1 is threadedly coupled the drill bit of head-exchangeable, it is characterised in that：It is described Complementary screw-threads bar（7）Outer surface be equipped with internal thread, complementary screw-threads bar（7）By internal thread through reinforcing casing（9）.

5. a kind of whole hard alloy according to claim 1 is threadedly coupled the drill bit of head-exchangeable, it is characterised in that：It is described Major cutting edge（4）With auxiliary-blade（5）Quantity be two groups, major cutting edge described in two groups（4）Between be equipped with flank, it is secondary described in two groups Blade（5）Between be equipped with rake face.

6. a kind of whole hard alloy according to claim 1 is threadedly coupled the drill bit of head-exchangeable, it is characterised in that：It is described Alloy bit（1）Pass through seam allowance screw thread（6）With knife bar（10）It is fixedly connected, and alloy bit（1）With knife bar（10）Material is different.