CN104625670A - Method for manufacturing lengthened drill bit - Google Patents
Method for manufacturing lengthened drill bit Download PDFInfo
- Publication number
- CN104625670A CN104625670A CN201510023891.7A CN201510023891A CN104625670A CN 104625670 A CN104625670 A CN 104625670A CN 201510023891 A CN201510023891 A CN 201510023891A CN 104625670 A CN104625670 A CN 104625670A
- Authority
- CN
- China
- Prior art keywords
- drill bit
- supporting rod
- extension bar
- steel pipe
- rear end
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a method for manufacturing a lengthened drill bit. The method includes the manufacturing steps that a lengthened rod is machined; a groove is machined; welding is conducted; straightening is conducted. By the adoption of the technical scheme, the lengthened rod 5 is made of a Q235 material with the good welding performance and welded to a clamping rod 4 of a drill bit 2, the length of the drill bit clamping rod 4 is effectively increased, the drilling depth of the drill bit is greatly increased, and the requirements for drilling in special situations can be met.
Description
Technical field
The present invention is a kind of manufacture method of lengthening drill bit, belongs to the molding fabrication techniques field of product.
Background technology
Field of machining processes darker hole sometimes, at this moment need to use lengthening drill bit, and the length of lengthening drill bit can not meet instructions for use sometimes, at this moment just needs the retained part of prolongation drill bit.
Summary of the invention
The present invention designs for above-mentioned the deficiencies in the prior art the manufacture method providing a kind of lengthening drill bit just, its objective is and pass through welding method, extend the retained part of drill bit, the degree of depth of bit bore is deepened greatly, the needs of in particular cases holing can be met.
The object of the invention is to be achieved through the following technical solutions:
The manufacture method of this kind of lengthening drill bit, is characterized in that: the step of the method is:
One, extension bar (5) is processed, adopt Q235 metal material, press the diameter turning extension bar (5) of the supporting rod (4) of drill bit (2), wear into the symmetrical grooves of 60 ~ 70 degree of X-types with emery wheel respectively in the rear end of the supporting rod (4) of the front end of extension bar (5) and drill bit (2), stay root face 2 ~ 3 millimeters;
Two, weld, the supporting rod (4) of extension bar (5) and drill bit (2) is separately fixed in the V groove (3) of V-type clamp body (1), to retain the gap of 1.5 ~ 2 millimeters between the rear end of the supporting rod (4) of the front end of extension bar (5) and drill bit (2), the rear end of the supporting rod (4) of the front end of extension bar (5) and drill bit (2) welds together by arc welding by hand;
Three, alignment, postwelding takes advantage of red heat state, rapidly weldment is loaded onto lathe, slowly pierce fixing steel pipe on the table in advance, the supporting rod (4) of extension bar (5) and drill bit (2) is sleeved in steel pipe completely and carries out alignment, the diameter of steel pipe is identical with the diameter of the supporting rod (4) of drill bit (2), and the temperature of the weldment in alignment process should higher than 400 degree.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of welding method in technical solution of the present invention
Detailed description of the invention
Below in conjunction with drawings and Examples, technical solution of the present invention is described in further details:
Shown in Figure 1, the manufacture method of this kind of lengthening drill bit, is characterized in that: the step of the method is:
One, process extension bar 5, adopt Q235 metal material, by the diameter turning extension bar 5 of the supporting rod 4 of drill bit 2, wear into 60 ~ 70 degree X-types symmetry grooves with emery wheel respectively in the rear end of the supporting rod 4 of the front end of extension bar 5 and drill bit 2, stay root face 2 ~ 3 millimeters;
Two, weld, the supporting rod 4 of extension bar 5 and drill bit 2 is separately fixed in the V groove 3 of V-type clamp body 1, to retain the gap of 1.5 ~ 2 millimeters between the rear end of the supporting rod 4 of the front end of extension bar 5 and drill bit 2, the rear end of the supporting rod 4 of the front end of extension bar 5 and drill bit 2 welds together by arc welding by hand;
Three, alignment, postwelding takes advantage of red heat state, rapidly weldment is loaded onto lathe, slowly pierce fixing steel pipe on the table in advance, the supporting rod 4 of extension bar 5 and drill bit 2 is sleeved in steel pipe completely and carries out alignment, the diameter of steel pipe is identical with the diameter of the supporting rod 4 of drill bit 2, and the temperature of the weldment in alignment process should higher than 400 degree.
Technical solution of the present invention utilizes welding performance good Q235 materials processing extension bar 5 to connect welded together with the supporting rod 4 of drill bit 2, effectively extend the length of drill bit supporting rod 4, the degree of depth of bit bore is deepened greatly, the needs of in particular cases holing can be met.
Claims (1)
1. a manufacture method for lengthening drill bit, is characterized in that: the step of the method is:
One, extension bar (5) is processed, adopt Q235 metal material, press the diameter turning extension bar (5) of the supporting rod (4) of drill bit (2), wear into the symmetrical grooves of 60 ~ 70 degree of X-types with emery wheel respectively in the rear end of the supporting rod (4) of the front end of extension bar (5) and drill bit (2), stay root face 2 ~ 3 millimeters;
Two, weld, the supporting rod (4) of extension bar (5) and drill bit (2) is separately fixed in the V groove (3) of V-type clamp body (1), to retain the gap of 1.5 ~ 2 millimeters between the rear end of the supporting rod (4) of the front end of extension bar (5) and drill bit (2), the rear end of the supporting rod (4) of the front end of extension bar (5) and drill bit (2) welds together by arc welding by hand;
Three, alignment, postwelding takes advantage of red heat state, rapidly weldment is loaded onto lathe, slowly pierce fixing steel pipe on the table in advance, the supporting rod (4) of extension bar (5) and drill bit (2) is sleeved in steel pipe completely and carries out alignment, the diameter of steel pipe is identical with the diameter of the supporting rod (4) of drill bit (2), and the temperature of the weldment in alignment process should higher than 400 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510023891.7A CN104625670A (en) | 2015-01-16 | 2015-01-16 | Method for manufacturing lengthened drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510023891.7A CN104625670A (en) | 2015-01-16 | 2015-01-16 | Method for manufacturing lengthened drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104625670A true CN104625670A (en) | 2015-05-20 |
Family
ID=53205147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510023891.7A Pending CN104625670A (en) | 2015-01-16 | 2015-01-16 | Method for manufacturing lengthened drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104625670A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105058002A (en) * | 2015-08-05 | 2015-11-18 | 哈尔滨汽轮机厂有限责任公司 | Machining method of welded type lengthened drill bit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4383784A (en) * | 1980-01-07 | 1983-05-17 | Precision Twist Drill & Machine Co. | Method and means of manufacturing a rotary cutting tool |
| CN201871771U (en) * | 2010-11-12 | 2011-06-22 | 邵阳恒远资江水电设备有限公司 | Lengthened drill bit for deep-hole drill |
| CN102179657A (en) * | 2011-06-08 | 2011-09-14 | 哈尔滨汽轮机厂有限责任公司 | Special clamp for welding lengthening drill or expanding drill |
| CN202343998U (en) * | 2011-10-28 | 2012-07-25 | 天津隆之珠模具科技有限公司 | Super-long straight handle drill bit |
| 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 |
-
2015
- 2015-01-16 CN CN201510023891.7A patent/CN104625670A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4383784A (en) * | 1980-01-07 | 1983-05-17 | Precision Twist Drill & Machine Co. | Method and means of manufacturing a rotary cutting tool |
| CN201871771U (en) * | 2010-11-12 | 2011-06-22 | 邵阳恒远资江水电设备有限公司 | Lengthened drill bit for deep-hole drill |
| CN102179657A (en) * | 2011-06-08 | 2011-09-14 | 哈尔滨汽轮机厂有限责任公司 | Special clamp for welding lengthening drill or expanding drill |
| CN202343998U (en) * | 2011-10-28 | 2012-07-25 | 天津隆之珠模具科技有限公司 | Super-long straight handle drill bit |
| 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 |
Non-Patent Citations (3)
| Title |
|---|
| 刘晓博: "接长刀柄的焊接夹具", 《机械工人.冷加工》 * |
| 刘本福: "弹簧钢与高速钢钻头的加长焊接", 《机械工人.热加工》 * |
| 杨根仁: "钻头加长连接方式", 《机械工人.冷加工》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105058002A (en) * | 2015-08-05 | 2015-11-18 | 哈尔滨汽轮机厂有限责任公司 | Machining method of welded type lengthened drill bit |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150520 |
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| WD01 | Invention patent application deemed withdrawn after publication |