CN104625669A - Lengthening method of auger bit drill rod - Google Patents
Lengthening method of auger bit drill rod Download PDFInfo
- Publication number
- CN104625669A CN104625669A CN201510007100.1A CN201510007100A CN104625669A CN 104625669 A CN104625669 A CN 104625669A CN 201510007100 A CN201510007100 A CN 201510007100A CN 104625669 A CN104625669 A CN 104625669A
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- China
- Prior art keywords
- extension arm
- minor axis
- drill bit
- connect
- tailstock
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
- B23P15/32—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools twist-drills
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention belongs to a machining technology and relates to a lengthening method of an auger bit drill rod. The lengthening method of the auger bit drill rod is characterized by comprising the steps that a connecting short shaft (1a) of a lengthened bit (1) is turned; a lengthened drill rod is machined; rotating friction welding is carried out; and outer circle turning is carried out. According to the lengthening method of the auger bit drill rod, a special long bit is removed, a machining cycle is shortened, machining efficiency is improved, and cost is lowered.
Description
Technical field
The invention belongs to Machining Technology, relate to a kind of lengthening method of spiral bit drilling rod.
Background technology
Often curtailment when use standard spiral bit carries out deep hole machining, need the special long drill bit of processing and manufacturing separately, cause the process-cycle long, working (machining) efficiency is low, and cost is high.
Summary of the invention
The object of the invention is: the lengthening method proposing a kind of spiral bit drilling rod, to omit special long drill bit, shorten the process-cycle long, improve working (machining) efficiency, reduce costs.
Technical scheme of the present invention is: a kind of lengthening method of spiral bit drilling rod, is characterized in that, the step of extension arm is as follows:
1, Vehicle Processing is lengthened out the connection minor axis 1a of drill bit 1: connect minor axis 1a in the afterbody car system one of the drill bit 1 that is lengthened out, connect the outside diameter d 2=0.4 ~ 0.6d1 of minor axis 1a, connect the length L1=10mm ~ 20mm of minor axis 1a;
2, extension arm is processed: car extension arm 2, the external diameter of extension arm 2 is equal with the external diameter of the drill bit 1 that is lengthened out, connect blind hole 2a at the link You Yige center of extension arm 2, connect the aperture D=d2-0.05 ~ 0.1mm of blind hole 2a, the degree of depth L2 connecting blind hole 2a is not less than L1;
3, spin friction welding: adopt lathe to carry out spin friction welding, on the three-jaw chuck be clamped in the drill bit 1 that is lengthened out with Mohs centrum, connects minor axis 1a towards main shaft, is arranged on tailstock by the three-jaw chuck with Mohs cone.Extension arm 2 is clamped on the three-jaw chuck of main shaft, connect blind hole 2a towards tailstock, tailstock is shifted onto the position near three-jaw chuck, make the end face of extension arm 2 to the distance 5mm ~ 10mm connecting minor axis 1a, start lathe, rotating speed is 1000r/min ~ 3000r/min, hand-operated tailstock handle, connection minor axis 1a is moved to extension arm 2 gradually, until connect stop motion in connection blind hole 2a that minor axis 1a enters extension arm 2 completely, stops;
4, turning: unclamp the three-jaw chuck on tailstock, resets tailstock, and finish turning is lengthened out the cylindrical of drill bit 1 and extension arm 2 coupling part, makes it identical with the external diameter of the drill bit 1 that is lengthened out.
Advantage of the present invention is: the lengthening method proposing a kind of spiral bit drilling rod, eliminates special long drill bit, shorten the process-cycle long, improve working (machining) efficiency, reduce cost.One embodiment of the present of invention, the process-cycle shortens to and manufactures less than 1/10th of special long drill bit, and cost is only and manufactures less than 1/5th of special long drill bit.
Accompanying drawing explanation
Fig. 1 is the structural representation of drill bit 1 and extension arm 2 of being lengthened out in the inventive method.
Detailed description of the invention
Below the present invention is described in further details.See Fig. 1, a kind of lengthening method of spiral bit drilling rod, is characterized in that, the step of extension arm is as follows:
1, Vehicle Processing is lengthened out the connection minor axis 1a of drill bit 1: connect minor axis 1a in the afterbody car system one of the drill bit 1 that is lengthened out, connect the outside diameter d 2=0.4 ~ 0.6d1 of minor axis 1a, connect the length L1=10mm ~ 30mm of minor axis 1a;
2, extension arm is processed: car extension arm 2, the external diameter of extension arm 2 is equal with the external diameter of the drill bit 1 that is lengthened out, connect blind hole 2a at the link You Yige center of extension arm 2, connect the aperture D=d2-0.05 ~ 0.1mm of blind hole 2a, the degree of depth L2 connecting blind hole 2a is not less than L1;
3, spin friction welding: adopt lathe to carry out spin friction welding, on the three-jaw chuck be clamped in the drill bit 1 that is lengthened out with Mohs centrum, connects minor axis 1a towards main shaft, is arranged on tailstock by the three-jaw chuck with Mohs cone.Extension arm 2 is clamped on the three-jaw chuck of main shaft, connect blind hole 2a towards tailstock, tailstock is shifted onto the position near three-jaw chuck, make the end face of extension arm 2 to the distance 5mm ~ 10mm connecting minor axis 1a, start lathe, rotating speed is 1000r/min ~ 3000r/min, hand-operated tailstock handle, connection minor axis 1a is moved to extension arm 2 gradually, until connect stop motion in connection blind hole 2a that minor axis 1a enters extension arm 2 completely, stops;
4, turning: unclamp the three-jaw chuck on tailstock, resets tailstock, and finish turning is lengthened out the cylindrical of drill bit 1 and extension arm 2 coupling part, makes it identical with the external diameter of the drill bit 1 that is lengthened out.
Operation principle of the present invention is: by spin friction weldering, the connection blind hole 2a of the extension arm 2 and connection minor axis 1a of drill bit 1 of being lengthened out is welded as entirety, then the external diameter car system expanded by welding portion through finish turning is smooth.
Embodiment 1, lengthen the spiral bit of φ 10mm, the spiral bit length of standard φ 10mm is 80mm, needs to be lengthened to 180mm.
1, Vehicle Processing is lengthened out the connection minor axis 1a of drill bit 1: connect minor axis 1a in the afterbody car system one of the drill bit 1 that is lengthened out, and the outside diameter d 2=6mm connecting minor axis 1a connects the length L1=10mm of minor axis 1a;
2, extension arm is processed: car extension arm 2, the external diameter of extension arm 2 is equal with the external diameter of the drill bit 1 that is lengthened out, connect blind hole 2a at the link You Yige center of extension arm 2, connect the aperture D=d2-0.05mm of blind hole 2a, the degree of depth connecting blind hole 2a is 12mm;
3, spin friction welding: adopt lathe to carry out spin friction welding, on the three-jaw chuck be clamped in the drill bit 1 that is lengthened out with Mohs centrum, connects minor axis 1a towards main shaft, is arranged on tailstock by the three-jaw chuck with Mohs cone.Extension arm 2 is clamped on the three-jaw chuck of main shaft, connect blind hole 2a towards tailstock, tailstock is shifted onto the position near three-jaw chuck, make the end face of extension arm 2 to the distance 5mm connecting minor axis 1a, start lathe, rotating speed is 3000r/min, hand-operated tailstock handle, connection minor axis 1a is moved to extension arm 2 gradually, until connect stop motion in connection blind hole 2a that minor axis 1a enters extension arm 2 completely, stops;
4, turning: unclamp the three-jaw chuck on tailstock, resets tailstock, and finish turning is lengthened out the cylindrical of drill bit 1 and extension arm 2 coupling part, makes it identical with the external diameter of the drill bit 1 that is lengthened out.
Embodiment 2, lengthen the spiral bit of φ 16mm, the spiral bit length of standard φ 16mm is 140mm, needs to be lengthened to 300mm.
1, Vehicle Processing is lengthened out the connection minor axis 1a of drill bit 1: connect minor axis 1a in the afterbody car system one of the drill bit 1 that is lengthened out, and the outside diameter d 2=10mm connecting minor axis 1a connects the length L1=20mm of minor axis 1a;
2, extension arm is processed: car extension arm 2, the external diameter of extension arm 2 is equal with the external diameter of the drill bit 1 that is lengthened out, connect blind hole 2a at the link You Yige center of extension arm 2, connect the aperture D=d2-0.1mm of blind hole 2a, the degree of depth connecting blind hole 2a is 23mm;
3, spin friction welding: adopt lathe to carry out spin friction welding, on the three-jaw chuck be clamped in the drill bit 1 that is lengthened out with Mohs centrum, connects minor axis 1a towards main shaft, is arranged on tailstock by the three-jaw chuck with Mohs cone.Extension arm 2 is clamped on the three-jaw chuck of main shaft, connect blind hole 2a towards tailstock, tailstock is shifted onto the position near three-jaw chuck, make the end face of extension arm 2 to the distance 10mm connecting minor axis 1a, start lathe, rotating speed is 2000r/min, hand-operated tailstock handle, connection minor axis 1a is moved to extension arm 2 gradually, until connect stop motion in connection blind hole 2a that minor axis 1a enters extension arm 2 completely, stops;
4, turning: unclamp the three-jaw chuck on tailstock, resets tailstock, and finish turning is lengthened out the cylindrical of drill bit 1 and extension arm 2 coupling part, makes it identical with the external diameter of the drill bit 1 that is lengthened out.
Embodiment 3, lengthen the spiral bit of φ 20mm, the spiral bit length of standard φ 16mm is 140mm, needs to be lengthened to 300mm.
1, Vehicle Processing is lengthened out the connection minor axis 1a of drill bit 1: connect minor axis 1a in the afterbody car system one of the drill bit 1 that is lengthened out, and the outside diameter d 2=15mm connecting minor axis 1a connects the length L1=30mm of minor axis 1a;
2, extension arm is processed: car extension arm 2, the external diameter of extension arm 2 is equal with the external diameter of the drill bit 1 that is lengthened out, connect blind hole 2a at the link You Yige center of extension arm 2, connect the aperture D=d2-0.15mm of blind hole 2a, the degree of depth connecting blind hole 2a is 35mm;
3, spin friction welding: adopt lathe to carry out spin friction welding, on the three-jaw chuck be clamped in the drill bit 1 that is lengthened out with Mohs centrum, connects minor axis 1a towards main shaft, is arranged on tailstock by the three-jaw chuck with Mohs cone.Extension arm 2 is clamped on the three-jaw chuck of main shaft, connect blind hole 2a towards tailstock, tailstock is shifted onto the position near three-jaw chuck, make the end face of extension arm 2 to the distance 15mm connecting minor axis 1a, start lathe, rotating speed is 1000r/min, hand-operated tailstock handle, connection minor axis 1a is moved to extension arm 2 gradually, until connect stop motion in connection blind hole 2a that minor axis 1a enters extension arm 2 completely, stops;
4, turning: unclamp the three-jaw chuck on tailstock, resets tailstock, and finish turning is lengthened out the cylindrical of drill bit 1 and extension arm 2 coupling part, makes it identical with the external diameter of the drill bit 1 that is lengthened out.
Claims (1)
1. a lengthening method for spiral bit drilling rod, is characterized in that, the step of extension arm is as follows:
1.1, Vehicle Processing is lengthened out the connection minor axis (1a) of drill bit (1): connect minor axis (1a) in the afterbody car system one of the drill bit that is lengthened out (1), connect outside diameter d 2=(0.4 ~ 0.6) d1 of minor axis (1a), connect the length L1=10mm ~ 30mm of minor axis (1a);
1.2, extension arm is processed: car extension arm (2), the external diameter of extension arm (2) is equal with the external diameter of the drill bit that is lengthened out (1), blind hole (2a) is connected at the link You Yige center of extension arm (2), connect aperture D=d2-(0.05 ~ 0.1) mm of blind hole (2a), the degree of depth L2 connecting blind hole (2a) is not less than L1;
1.3, spin friction welding: adopt lathe to carry out spin friction welding, the drill bit (1) that will be lengthened out is clamped on the three-jaw chuck with Mohs centrum, connect minor axis (1a) towards main shaft, the three-jaw chuck with Mohs cone is arranged on tailstock.Extension arm (2) is clamped on the three-jaw chuck of main shaft, connect blind hole (2a) towards tailstock, tailstock is shifted onto the position near three-jaw chuck, make the end face of extension arm (2) to the distance 5mm ~ 10mm connecting minor axis (1a), start lathe, rotating speed is 1000r/min ~ 3000r/min, hand-operated tailstock handle, connection minor axis (1a) is moved to extension arm (2) gradually, until connect connection blind hole (2a) the interior stop motion that minor axis (1a) enters extension arm (2) completely, stop;
1.4, turning: unclamp the three-jaw chuck on tailstock, resets tailstock, and finish turning is lengthened out the cylindrical of drill bit (1) and extension arm (2) coupling part, makes it identical with the external diameter of the drill bit that is lengthened out (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510007100.1A CN104625669A (en) | 2015-01-07 | 2015-01-07 | Lengthening method of auger bit drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510007100.1A CN104625669A (en) | 2015-01-07 | 2015-01-07 | Lengthening method of auger bit drill rod |
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| Publication Number | Publication Date |
|---|---|
| CN104625669A true CN104625669A (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510007100.1A Pending CN104625669A (en) | 2015-01-07 | 2015-01-07 | Lengthening method of auger bit drill rod |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107186333A (en) * | 2017-07-24 | 2017-09-22 | 江苏飞达钻头股份有限公司 | A kind of molten assembly method of assembly type hexagonal-handle twist drill ultrasonic wave rotation |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003166037A (en) * | 2001-11-28 | 2003-06-13 | Japan Marine Sci & Technol Center | Drill pipe and manufacturing method therefor |
| CN103692177A (en) * | 2013-06-14 | 2014-04-02 | 哈尔滨汽轮机厂有限责任公司 | Method for machining extension drill |
| CN104015021A (en) * | 2014-06-11 | 2014-09-03 | 沈阳飞机工业（集团）有限公司 | Assistant butt-welding machining method for long-and-thin-rod drill bit |
-
2015
- 2015-01-07 CN CN201510007100.1A patent/CN104625669A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003166037A (en) * | 2001-11-28 | 2003-06-13 | Japan Marine Sci & Technol Center | Drill pipe and manufacturing method therefor |
| CN103692177A (en) * | 2013-06-14 | 2014-04-02 | 哈尔滨汽轮机厂有限责任公司 | Method for machining extension drill |
| CN104015021A (en) * | 2014-06-11 | 2014-09-03 | 沈阳飞机工业（集团）有限公司 | Assistant butt-welding machining method for long-and-thin-rod drill bit |
Non-Patent Citations (2)
| Title |
|---|
| 聂福全: ""改制麻花钻在车床上钻深盲孔"", 《金属加工》 * |
| 马庆文: ""浅谈刀具的摩擦焊接"", 《工具技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107186333A (en) * | 2017-07-24 | 2017-09-22 | 江苏飞达钻头股份有限公司 | A kind of molten assembly method of assembly type hexagonal-handle twist drill ultrasonic wave rotation |
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Application publication date: 20150520 |
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