CN201543873U - Compound drill bit - Google Patents

Compound drill bit Download PDF

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Publication number
CN201543873U
CN201543873U CN2009201746432U CN200920174643U CN201543873U CN 201543873 U CN201543873 U CN 201543873U CN 2009201746432 U CN2009201746432 U CN 2009201746432U CN 200920174643 U CN200920174643 U CN 200920174643U CN 201543873 U CN201543873 U CN 201543873U
Authority
CN
China
Prior art keywords
drill bit
cooling
compound
drilling
hole
Prior art date
Application number
CN2009201746432U
Other languages
Chinese (zh)
Inventor
孙生强
Original Assignee
孙生强
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 孙生强 filed Critical 孙生强
Priority to CN2009201746432U priority Critical patent/CN201543873U/en
Application granted granted Critical
Publication of CN201543873U publication Critical patent/CN201543873U/en

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Abstract

The utility model relates to a compound drill bit which is formed by combining a big drill bit, a small drill bit and an inner cooling pipeline, wherein a polishing transverse edge surface (3) is arranged in the position of a transverse edge of the small drill bit, cutting slots (2 and 1) are formed on cutting edges of the big drill bit and the small drill bit, a cooling straight hole (5) and a spiral hole (4) are formed in the drill bit, and a cooling orifice comprises a pipe thread screw hole (6) which can be connected with a cooling source. When the drill bit is used for drilling, sufficient cooling fluid or gas can rapidly reduce the temperature of the drilling front edge through the spiral hole (4), lead the cutting edge of the compound drill bit to always keep the sharp state and avoid the phenomena of heating, chip blocking, burning of the drill bit, and clamping of the drill bit during the processing, and particularly the compound drill bit is more conductive to processing deep holes; compared with the traditional drilling and broaching processing technologies, the processing technology of the compound drill bit has significant effects in the aspects of convenience, safety, labor-saving property and high efficiency.

Description

A kind of composite drill bit
Technical field
The utility model relates to a kind of composite drill bit, especially can once finish the drill bit of the high efficiency Compound Machining of boring, reaming operation.
Background technology
At present, generally the drill bit of Shi Yonging mostly is single type, when drilling larger aperture workpiece, usually all be to drill through earlier with a smaller drill bit earlier, and then change this drill bit, remove second reaming with bigger drill bit again, on operating time and labour intensity and operating efficiency, all can not reach effect preferably.
The utility model content
The purpose of this utility model is a kind of composite drill bit of design, can once finish the processing tasks of boring, reaming.
The technical scheme that its technical problem that solves the utility model adopts is: this composite drill bit is combined by large and small drill bit and interior cooling pipe.Its cooling tube is divided into one straight pipeline and two helical pipes, and the straight pipeline inlet is provided with gas thread; Little chisel edge position is provided with the web thinning face; The cutting edge of large and small drill bit is provided with open slot.
The utility model is in process, after the drilling of bradawl head, the big bit part of back directly carries out reaming, and cooling fluid or gas can directly carry out interior cooling to the cutting edge of its composite drill bit by the threaded hole in cooling hole, can effectively solve the phenomenon because of stifled bits that heat in metal cutting produces, the burning of bits, bit freezing.
The beneficial effect of a kind of composite drill bit of the utility model is: can will hole in an action, the reaming operation once finishes, and the open slot of design and cooling hole can make drilling more laborsaving, smooth and easy.When reducing manufacturing procedure, play reducing labor intensity, save the working time, the effect of increasing work efficiency.
Description of drawings
Accompanying drawing 1 is the structural representation of a kind of composite drill bit of this utility model, and Fig. 2 is that a kind of composite drill bit A is to schematic diagram.
Among Fig. 1-2,1 is bradawl head open slot, and 2 is big drill bit open slot, and 3 is the web thinning face, and 4 are cooling hole threaded hole, and 5 are cooling hole straight hole, and 6 is cooling port gas thread silk hole, and 7 is little drill bit, and 8 is big drill bit, and 9 is drillstock.
The specific embodiment
For making the purpose of this utility model, technical scheme clearer, the utility model is described in further detail below in conjunction with the accompanying drawing specific embodiment.
Referring to legend, when the operator processes larger-diameter hole, can directly use this composite drill bit, do not need to use the drill bit of two kinds of different-diameters successively to change drilling by traditional diamond-making technique.This composite drill bit adds man-hour, and leading portion bradawl head 7 bears the drilling task, and the big drill bit 8 of back segment is finished the counterboring task.
The little chisel edge place of this a kind of composite drill bit is provided with web thinning face 3, and has opened 1 and 2 cutting slot respectively on the cutting edge of little drill bit and big drill bit, makes cutting resistance littler, and drilling is more laborsaving, and chip removal is more smooth.In the indoor design of drill bit cooling hole straight hole 5 and threaded hole 4, can coolant pipe and cooling tracheae be installed by the gas thread 6 of straight pipeline inlet, like this, when drilling, strong sufficient cooling fluid or gas can directly reduce by the cutting temperature of threaded hole 4 with cutting surface fast, make the cutting edge of this composite drill bit remain sharp state, the normal heating that occurs in avoiding processing, stifled bits, the burning of bits, the phenomenon of bit freezing, especially more favourable to the processing of deep hole, the processing technology of this composite drill bit is compared traditional boring, the reaming processing technology is convenient, safety, laborsaving, efficient aspect effect is fairly obvious.

Claims (4)

1. composite drill bit, it is characterized in that: this composite drill bit is combined by large and small drill bit and interior cooling pipe.
2. a kind of composite drill bit according to claim 1 is characterized in that: described cooling tube is divided into one straight pipeline and two helical pipes, and the straight pipeline inlet is provided with gas thread.
3. a kind of composite drill bit according to claim 1 is characterized in that: described little chisel edge position is provided with the web thinning face.
4. a kind of composite drill bit according to claim 1 is characterized in that: the cutting edge of described large and small drill bit is provided with open slot.
CN2009201746432U 2009-09-09 2009-09-09 Compound drill bit CN201543873U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009201746432U CN201543873U (en) 2009-09-09 2009-09-09 Compound drill bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009201746432U CN201543873U (en) 2009-09-09 2009-09-09 Compound drill bit

Publications (1)

Publication Number Publication Date
CN201543873U true CN201543873U (en) 2010-08-11

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009201746432U CN201543873U (en) 2009-09-09 2009-09-09 Compound drill bit

Country Status (1)

Country Link
CN (1) CN201543873U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102407364A (en) * 2011-12-14 2012-04-11 常熟市磊王合金工具有限公司 Ant-vibration drill bit
CN103567508A (en) * 2013-07-17 2014-02-12 昆山巨德泰精密机械有限公司 Drill bit with radiating hole in blade part
CN103722222A (en) * 2013-11-26 2014-04-16 李仕清 Self-cooling center drill or self-cooling counter bit
CN105728804A (en) * 2016-03-23 2016-07-06 苏州亚思科精密数控有限公司 Self-cooling type rotary drill device
CN111318740A (en) * 2020-02-13 2020-06-23 江苏大学 Follow-up elongated hole forming and burr cleaning method and device
CN111516047A (en) * 2020-05-09 2020-08-11 深圳德润高科有限公司 Clean drilling system of carbon fiber reinforced composite's cooling

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102407364A (en) * 2011-12-14 2012-04-11 常熟市磊王合金工具有限公司 Ant-vibration drill bit
CN103567508A (en) * 2013-07-17 2014-02-12 昆山巨德泰精密机械有限公司 Drill bit with radiating hole in blade part
CN103722222A (en) * 2013-11-26 2014-04-16 李仕清 Self-cooling center drill or self-cooling counter bit
CN105728804A (en) * 2016-03-23 2016-07-06 苏州亚思科精密数控有限公司 Self-cooling type rotary drill device
CN111318740A (en) * 2020-02-13 2020-06-23 江苏大学 Follow-up elongated hole forming and burr cleaning method and device
CN111516047A (en) * 2020-05-09 2020-08-11 深圳德润高科有限公司 Clean drilling system of carbon fiber reinforced composite's cooling

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CP02 Change in the address of a patent holder

Address after: Suzhou City, Jiangsu Province, 215163 Branch Road, Science City high tech Zone No. 18 B building 3 floor glass room

Patentee after: Sun Shengqiang

Address before: 221140 room 2, building 22, building two, 501 West Ring Road, Xuzhou, Jiangsu, China

Patentee before: Sun Shengqiang

C56 Change in the name or address of the patentee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100811

Termination date: 20130909

C17 Cessation of patent right