CN106181279A - A kind of processing technique of cutter head changeable type depth drill - Google Patents
A kind of processing technique of cutter head changeable type depth drill Download PDFInfo
- Publication number
- CN106181279A CN106181279A CN201610651409.9A CN201610651409A CN106181279A CN 106181279 A CN106181279 A CN 106181279A CN 201610651409 A CN201610651409 A CN 201610651409A CN 106181279 A CN106181279 A CN 106181279A
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- Prior art keywords
- depth drill
- grinding
- processing technique
- cutter head
- drill
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- 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.)
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Links
- 238000000034 method Methods 0.000 title claims abstract description 44
- 238000000227 grinding Methods 0.000 claims abstract description 43
- 238000010438 heat treatment Methods 0.000 claims abstract description 35
- 238000005496 tempering Methods 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 7
- 238000005553 drilling Methods 0.000 claims description 5
- 238000003801 milling Methods 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 238000010079 rubber tapping Methods 0.000 claims description 5
- 239000000523 sample Substances 0.000 claims description 4
- 238000003754 machining Methods 0.000 abstract description 8
- 206010020843 Hyperthermia Diseases 0.000 abstract description 2
- 230000036031 hyperthermia Effects 0.000 abstract description 2
- 230000000750 progressive effect Effects 0.000 abstract description 2
- 238000005520 cutting process Methods 0.000 description 4
- 238000010583 slow cooling Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002173 cutting fluid Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The present invention refers in particular to the processing technique of a kind of cutter head changeable type depth drill, belong to drill produced and processing technique field, technique in the present invention is first to carry out heat treatment, post-treatment chip area, and the high-temperature process link in heat treatment, use progressive mode, sectional carry out localized hyperthermia's process, rather than entirety carries out high-temperature process, desirably preventing the deformation of slender piece, additionally the processing of chip area uses the mode of grinding, improves working (machining) efficiency, be conducive to times footpath big, the processing of the depth drill that length is longer.
Description
Technical field
The invention belongs to drill produced and processing technique field, refer in particular to the processing work of a kind of cutter head changeable type depth drill
Skill.
Background technology
Deep hole refers to the ratio in hole depth and the aperture hole more than 5, when deep hole processing, drill bit is elongated, intensity is low, poor rigidity,
Yielding, and chip removal difficulty, drill bit has longer contacting and friction with hole wall, and machining condition is poor；Cutting fluid is difficult to deliver to
Cutting region；Resistance to cutting increases severely, and easily causes drill bit deviation and broken drill etc..So times footpath of depth drill is the biggest, manufacture
Difficulty can increase therewith, and for the manufacture of depth drill in prior art, adopt the technology that and first process chip area, then carries out
Heat treated, is so easily caused deformation, and conforming product rate is low, and the depth drill adding section chief times footpath can be restricted, it is impossible to
Meet the market demand.
Summary of the invention
It is an object of the invention to provide the processing technique of a kind of cutter head changeable type depth drill, can be produced by this technique
The depth drill in long times footpath, and improve the quality of depth drill.
The object of the present invention is achieved like this: the processing technique of a kind of cutter head changeable type depth drill, including following step
Rapid:
Step one: choose H13 mould steel as raw material；
Step 2: use numerically controlled lathe that H13 mould steel is lathed rod, and process the installation portion of end；
Step 3: rod is carried out polish；
Step 4: by the front end of machining center milling depth drill, processes operator head mounting groove and auxiliary-blade groove, and
The center of described operator head mounting groove processes locking hole by drilling and tapping, and above-mentioned processing is by once having clamped
Become, it is to avoid produce error during changing the outfit, improve machining accuracy；
Step 5: carry out heat treatment, first preheat, then carry out high-temperature heating, high-temperature heating is that advanceable heats piecemeal, purpose
Be to prevent depth drill from deforming, and to handle with care in processing procedure, heat time heating time T2=28 "/mm*L, L are depth drill
Total length；Then cool down, finally carry out temper, after temper terminates, Slow cooling, it is to avoid rate of cooling mistake
Workpiece is caused to deform soon；
The temperature wherein preheated is 800 DEG C-900 DEG C, and preheating time is T1, preheats twice；The temperature of high-temperature heating is
1015 DEG C-1060 DEG C, the time is T2；The type of cooling is that oil is cold；The temperature of tempering is 520 DEG C-540 DEG C, and tempering time is T3, separately
Outer each two hour is tempered once, altogether tempering three times；
Above-mentioned T1=T2=T3；
Step 6: carried out the grinding of chip area by grinding machine, concrete mode is, the front end of depth drill is positioned at guide pin bushing, end
End is clamped by fixture, and grinding tool carries out grinding along the shaft of depth drill, is ground to helical form；
Step 7: the limit mouth of grinding chip area, forms chip removal sword；
Step 8: the surface of depth drill is carried out overall fine grinding.
The processing technique of a kind of cutter head changeable type depth drill mentioned above, wherein, in described step 3, enters rod
The margin of tolerance required by row fine grinding is ± 2dmm.
The processing technique of a kind of cutter head changeable type depth drill mentioned above, wherein, in described step 5 after heat treatment
The technology reached requires: HRC52-HRC58.
The processing technique of a kind of cutter head changeable type depth drill mentioned above, wherein, have employed spy in described step 6
The auxiliary device of pin location, makes grinding tool navigate at auxiliary-blade groove, it is ensured that auxiliary-blade groove matches with the chip area of institute's grinding.
The present invention is prominent compared to existing technology and useful having the technical effect that first carries out heat treatment, post-treatment chip area, and
And the high-temperature process link in heat treatment, use progressive mode, sectional carry out localized hyperthermia's process rather than whole
Body carries out high-temperature process, desirably prevents the deformation of slender piece, and additionally the processing of chip area uses the mode of grinding, carries
High working (machining) efficiency, is conducive to times footpath big, the processing of the depth drill that length is longer.
Accompanying drawing explanation
Fig. 1 is the structural representation (1) that medium-length hole of the present invention bores；
Fig. 2 is the structural representation (2) that medium-length hole of the present invention bores；
Fig. 3 is the heat treatment cycle curve figure of the present invention；
In figure: 10-depth drill, 11-installation portion, 12-operates head mounting groove, 13-locking hole, 14-auxiliary-blade groove, and 15-arranges
Bits groove, 16-operates head, 17-auxiliary-blade.
Detailed description of the invention
With specific embodiment, the invention will be further described below in conjunction with the accompanying drawings, sees Fig. 13:
Embodiment one:
Step one: choose H13 mould steel as raw material；
Step 2: use numerically controlled lathe that H13 mould steel is lathed rod, and process the installation portion 11 of end；
Step 3: rod is carried out polish；Rod is refined the required margin of tolerance for ± 2dmm；
Step 4: by the front end of machining center milling depth drill 10, processes operator head mounting groove 12 and auxiliary-blade groove
14, both are separately installed with operator 16 and two auxiliary-blades 17, and install the center of 12 by boring at described operator head
Cutting and process locking hole 13 with tapping, operator 16 is locked by screw rod through locking hole 13, and above-mentioned processing is by once clamping
Complete, it is to avoid produce error during changing the outfit, improve machining accuracy；
Step 5: carry out heat treatment, first preheat, then carry out high-temperature heating, high-temperature heating is that advanceable heats piecemeal, purpose
Be to prevent depth drill 10 from deforming, and to handle with care in processing procedure, heat time heating time T2=28 "/mm*L, L are depth drill
The total length of 10；Then cool down, finally carry out temper, after temper terminates, Slow cooling, it is to avoid cooling speed
Spend and cause workpiece to deform soon；
The temperature wherein preheated is 800 DEG C, and preheating time is T1, preheats twice；The temperature of high-temperature heating is 1015 DEG C, time
Between be T2；The type of cooling is that oil is cold；The temperature of tempering is 520 DEG C, and tempering time is T3, and additionally each two hour is tempered once,
Tempering three times altogether；
Above-mentioned T1=T2=T3；The technology reached after heat treatment requires: HRC54.
Step 6: carried out the grinding of chip area 15 by grinding machine, concrete mode is, the front end of depth drill 10 is positioned at guide pin bushing
In, end is clamped by fixture, and grinding tool carries out grinding along the shaft of depth drill 10, is ground to helical form；This step have employed
The auxiliary device of probe location, makes grinding tool navigate at auxiliary-blade groove 14, it is ensured that auxiliary-blade groove 14 is with the chip area 15 of institute's grinding
Match.
Step 7: the limit mouth of grinding chip area 15, forms chip removal sword；
Step 8: the surface of depth drill 10 is carried out overall fine grinding.
Embodiment two:
Step one: choose H13 mould steel as raw material；
Step 2: use numerically controlled lathe that H13 mould steel is lathed rod, and process the installation portion 11 of end；
Step 3: rod is carried out polish；Rod is refined the required margin of tolerance for ± 2dmm；
Step 4: all cross the front end of machining center milling depth drill 10, processes operator head mounting groove 12 and auxiliary-blade
Groove 14, both are separately installed with operator 16 and two auxiliary-blades 17, and pass through in the center of described operator head installation 12
Drilling and tapping process locking hole 13, and operator 16 is locked by screw rod through locking hole 13, and above-mentioned processing is by once pressing from both sides
Install into, it is to avoid produce error during changing the outfit, improve machining accuracy；
Step 5: carry out heat treatment, first preheat, then carry out high-temperature heating, high-temperature heating is that advanceable heats piecemeal, purpose
Be to prevent depth drill 10 from deforming, and to handle with care in processing procedure, heat time heating time T2=28 "/mm*L, L are depth drill
The total length of 10；Then cool down, finally carry out temper, after temper terminates, Slow cooling, it is to avoid cooling speed
Spend and cause workpiece to deform soon；
The temperature wherein preheated is 850 DEG C, and preheating time is T1, preheats twice；The temperature of high-temperature heating is 1035 DEG C, time
Between be T2；The type of cooling is that oil is cold；The temperature of tempering is 530 DEG C, and tempering time is T3, and additionally each two hour is tempered once,
Tempering three times altogether；
Above-mentioned T1=T2=T3；The technology reached after heat treatment requires: HRC56.
Step 6: carried out the grinding of chip area 15 by grinding machine, concrete mode is, the front end of depth drill 10 is positioned at guide pin bushing
In, end is clamped by fixture, and grinding tool carries out grinding along the shaft of depth drill 10, is ground to helical form；This step have employed
The auxiliary device of probe location, makes grinding tool navigate at auxiliary-blade groove 14, it is ensured that auxiliary-blade groove 14 is with the chip area 15 of institute's grinding
Match.
Step 7: the limit mouth of grinding chip area 15, forms chip removal sword；
Step 8: the surface of depth drill 10 is carried out overall fine grinding.
Embodiment three:
Step one: choose H13 mould steel as raw material；
Step 2: use numerically controlled lathe that H13 mould steel is lathed rod, and process the installation portion 11 of end；
Step 3: rod is carried out polish；Rod is refined the required margin of tolerance for ± 2dmm；
Step 4: by the front end of machining center milling depth drill 10, processes operator head mounting groove 12 and auxiliary-blade groove
14, both are separately installed with operator 16 and two auxiliary-blades 17, and install the center of 12 by boring at described operator head
Cutting and process locking hole 13 with tapping, operator 16 is locked by screw rod through locking hole 13, and above-mentioned processing is by once clamping
Complete, it is to avoid produce error during changing the outfit, improve machining accuracy；
Step 5: carry out heat treatment, first preheat, then carry out high-temperature heating, high-temperature heating is that advanceable heats piecemeal, purpose
Be to prevent depth drill 10 from deforming, and to handle with care in processing procedure, heat time heating time T2=28 "/mm*L, L are depth drill
The total length of 10；Then cool down, finally carry out temper, after temper terminates, Slow cooling, it is to avoid cooling speed
Spend and cause workpiece to deform soon；
The temperature wherein preheated is 900 DEG C, and preheating time is T1, preheats twice；The temperature of high-temperature heating is 1060 DEG C, time
Between be T2；The type of cooling is that oil is cold；The temperature of tempering is 540 DEG C, and tempering time is T3, and additionally each two hour is tempered once,
Tempering three times altogether；
Above-mentioned T1=T2=T3；The technology reached after heat treatment requires: HRC58.
Step 6: carried out the grinding of chip area 15 by grinding machine, concrete mode is, the front end of depth drill 10 is positioned at guide pin bushing
In, end is clamped by fixture, and grinding tool carries out grinding along the shaft of depth drill 10, is ground to helical form；This step have employed
The auxiliary device of probe location, makes grinding tool navigate at auxiliary-blade groove 14, it is ensured that auxiliary-blade groove 14 is with the chip area 15 of institute's grinding
Match.
Step 7: the limit mouth of grinding chip area 15, forms chip removal sword；
Step 8: the surface of depth drill 10 is carried out overall fine grinding.
Following table is the drilling parameter comparison of the depth drill in the former depth drill and this technique that diameter is identical:
Wherein Vc is drilling speed, and n is the speed of mainshaft, and fn is feed per revolution, and vf is feed speed, right by upper table
Compare parameter, it is possible to the processing technique being clearly understood that in the present invention has the raising of matter to the q&r of depth drill,
At working (machining) efficiency and depth drill the most traditional on service life.
Above-described embodiment is only presently preferred embodiments of the present invention, limits the scope of the invention the most according to this, therefore: all depend on
The equivalence change that the structure of the present invention, shape, principle are done, within all should being covered by protection scope of the present invention.
Claims (4)
1. the processing technique of a cutter head changeable type depth drill, it is characterised in that comprise the following steps:
Step one: choose H13 mould steel as raw material；
Step 2: use numerically controlled lathe that H13 mould steel is lathed rod, and process the installation portion of end；
Step 3: rod is carried out polish；
Step 4: by the front end of machining center milling depth drill, processes operator head mounting groove and auxiliary-blade groove, and described
The center of operator head mounting groove processes locking hole by drilling and tapping, and above-mentioned processing is by once having clamped；
Step 5: carry out heat treatment, first preheat, then carry out high-temperature heating, high-temperature heating is that advanceable heats piecemeal, heat time heating time
"/mm*L, L are the total length of depth drill to T2=28；Then cool down, finally carry out temper；
The temperature wherein preheated is 800 DEG C-900 DEG C, and preheating time is T1, preheats twice；The temperature of high-temperature heating is 1015 DEG C-
1060 DEG C, the time is T2；The type of cooling is that oil is cold；The temperature of tempering is 520 DEG C-540 DEG C, and tempering time is T3, the most every two
Tempering in individual hour once, is tempered three times altogether；
Above-mentioned T1=T2=T3；
Step 6: carried out the grinding of chip area by grinding machine, concrete mode is, the front end of depth drill is positioned at guide pin bushing, and end leads to
Crossing fixture to clamp, grinding tool carries out grinding along the shaft of depth drill, is ground to helical form；
Step 7: the limit mouth of grinding chip area, forms chip removal sword；
Step 8: the surface of depth drill is carried out overall fine grinding.
The processing technique of a kind of cutter head changeable type depth drill the most according to claim 1, it is characterised in that: described step
In three, rod is refined the required margin of tolerance for ± 2dmm.
The processing technique of a kind of cutter head changeable type depth drill the most according to claim 1, it is characterised in that: described step
The technology reached after heat treatment in five requires: HRC52-HRC58.
The processing technique of a kind of cutter head changeable type depth drill the most according to claim 1, it is characterised in that: described step
Have employed the auxiliary device of probe location in six, make grinding tool navigate at auxiliary-blade groove, it is ensured that auxiliary-blade groove is with the row of institute's grinding
Bits groove matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610651409.9A CN106181279B (en) | 2016-08-10 | 2016-08-10 | A kind of processing technology of cutter head changeable type depth drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610651409.9A CN106181279B (en) | 2016-08-10 | 2016-08-10 | A kind of processing technology of cutter head changeable type depth drill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106181279A true CN106181279A (en) | 2016-12-07 |
| CN106181279B CN106181279B (en) | 2018-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610651409.9A Active CN106181279B (en) | 2016-08-10 | 2016-08-10 | A kind of processing technology of cutter head changeable type depth drill |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108504840A (en) * | 2018-05-24 | 2018-09-07 | 合肥汇之新机械科技有限公司 | A kind of heat treatment process of high-strength high temperature-resistant alloy tool steel bit |
| CN112846478A (en) * | 2020-12-31 | 2021-05-28 | 湖北三江航天红阳机电有限公司 | Machining method for large thin-wall easily-deformable cabin shell |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0587489A1 (en) * | 1992-09-08 | 1994-03-16 | Jacques Ory | Method and device to produce a hardened twisted bar with holes |
| US5441121A (en) * | 1993-12-22 | 1995-08-15 | Baker Hughes, Inc. | Earth boring drill bit with shell supporting an external drilling surface |
| CN101653905A (en) * | 2009-08-28 | 2010-02-24 | 常州市万绥工具厂 | Method for manufacturing drilling bit |
| CN103567734A (en) * | 2012-08-07 | 2014-02-12 | 江苏伟杰工具有限公司 | Production method of straight-slot double-blade multifunctional stepped drill |
| CN104148901A (en) * | 2014-08-17 | 2014-11-19 | 成都亨通兆业精密机械有限公司 | Bearing base production process capable of well reducing heat treatment defects |
-
2016
- 2016-08-10 CN CN201610651409.9A patent/CN106181279B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0587489A1 (en) * | 1992-09-08 | 1994-03-16 | Jacques Ory | Method and device to produce a hardened twisted bar with holes |
| US5441121A (en) * | 1993-12-22 | 1995-08-15 | Baker Hughes, Inc. | Earth boring drill bit with shell supporting an external drilling surface |
| CN101653905A (en) * | 2009-08-28 | 2010-02-24 | 常州市万绥工具厂 | Method for manufacturing drilling bit |
| CN103567734A (en) * | 2012-08-07 | 2014-02-12 | 江苏伟杰工具有限公司 | Production method of straight-slot double-blade multifunctional stepped drill |
| CN104148901A (en) * | 2014-08-17 | 2014-11-19 | 成都亨通兆业精密机械有限公司 | Bearing base production process capable of well reducing heat treatment defects |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108504840A (en) * | 2018-05-24 | 2018-09-07 | 合肥汇之新机械科技有限公司 | A kind of heat treatment process of high-strength high temperature-resistant alloy tool steel bit |
| CN112846478A (en) * | 2020-12-31 | 2021-05-28 | 湖北三江航天红阳机电有限公司 | Machining method for large thin-wall easily-deformable cabin shell |
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| Publication number | Publication date |
|---|---|
| CN106181279B (en) | 2018-02-13 |
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Denomination of invention: Machining process of tool bit-replaceable deep hole drill Effective date of registration: 20180917 Granted publication date: 20180213 Pledgee: Zhejiang Tyrone commercial bank Limited by Share Ltd Taizhou Wenling branch Pledgor: Taizhou Huada Measuring Tool Manufacturing Co., Ltd. Registration number: 2018330000278 |