CN106181279B - A kind of processing technology of cutter head changeable type depth drill - Google Patents
A kind of processing technology of cutter head changeable type depth drill Download PDFInfo
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- CN106181279B CN106181279B CN201610651409.9A CN201610651409A CN106181279B CN 106181279 B CN106181279 B CN 106181279B CN 201610651409 A CN201610651409 A CN 201610651409A CN 106181279 B CN106181279 B CN 106181279B
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- depth drill
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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
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Abstract
The present invention refers in particular to a kind of processing technology of cutter head changeable type depth drill, belong to drill produced and processing technique field, technique in the present invention is first to be heat-treated, post-processing chip area, and the high-temperature process link in being heat-treated, using progressive mode, the processing of sectional progress localized hyperthermia, rather than overall progress high-temperature process, be advantageous to prevent the deformation of slender piece, the processing of chip area in addition improves processing efficiency using the mode of grinding, be advantageous to that times footpath is big, the processing of the longer depth drill of length.
Description
Technical field
The invention belongs to drill produced and processing technique field, refers in particular to a kind of processing work of cutter head changeable type depth drill
Skill.
Background technology
Deep hole refer to the ratio between hole depth and aperture be more than 5 hole, in deep hole processing, drill bit is elongated, low intensity, poor rigidity,
Yielding, and chip removal is difficult, drill bit and hole wall have longer a contact and friction, and machining condition is poor；Cutting fluid is difficult to be sent 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 bigger, manufacture
Difficulty can increase therewith, and the manufacture for depth drill in the prior art, adopt the technology that and first process chip area, then carry out
Heat, so easily cause to deform, product qualification rate is low, and the depth drill for processing long times footpath can be restricted, can not
Meet the market demand.
The content of the invention
It is an object of the invention to provide a kind of processing technology of cutter head changeable type depth drill, can be produced by the 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：A kind of processing technology of cutter head changeable type depth drill, including following step
Suddenly：
Step 1：H13 mould steel is chosen as raw material；
Step 2：H13 mould steel is lathed rod using numerically controlled lathe, and processes the installation portion of end；
Step 3：Rod is finished；
Step 4：By the front end of machining center milling depth drill, operator head mounting groove and auxiliary-blade groove are processed, and
The center of the operator head mounting groove processes locking hole by drilling and tapping, and above-mentioned processing is by once having clamped
Into, avoid producing error during changing the outfit, improve machining accuracy；
Step 5：It is heat-treated, is first preheated, then be heated at high temperature, is heated at high temperature and is heated for piecewise advanceable, purpose
It is to prevent depth drill from deforming, and is handled with care in processing procedure, heat time T2=28 "/mm*L, L is depth drill
Total length；Then cooled down, finally carry out temper, after temper terminates, Slow cooling, avoid cooling velocity mistake
Workpiece is caused to deform soon；
The temperature wherein preheated is 800 DEG C -900 DEG C, preheating time T1, and preheating is twice；The temperature of high-temperature heating is
1015 DEG C -1060 DEG C, time T2；The type of cooling is oil cooling；The temperature of tempering is 520 DEG C -540 DEG C, tempering time T3, separately
Outer each two hour tempering once, is tempered three times altogether；
Above-mentioned T1=T2=T3；
Step 6：The grinding of chip area is carried out by grinding machine, concrete mode is that the front end of depth drill is located in guide pin bushing, end
End is clamped by fixture, and grinding tool is ground along the shaft of depth drill, is ground curl；
Step 7：The side mouth of chip area is ground, forms chip removal sword；
Step 8：Overall fine grinding is carried out to the surface of depth drill.
A kind of processing technology of cutter head changeable type depth drill mentioned above, wherein, in the step 3, rod is entered
The required margin of tolerance of row fine grinding is ± 2dmm.
A kind of processing technology of cutter head changeable type depth drill mentioned above, wherein, after being heat-treated in the step 5
The technical requirements reached are：HRC52-HRC58.
A kind of processing technology of cutter head changeable type depth drill mentioned above, wherein, spy is employed in the step 6
The servicing unit of pin positioning, makes grinding tool navigate at auxiliary-blade groove, it is ensured that auxiliary-blade groove matches with the chip area being ground.
The present invention is prominent and beneficial compared with prior art to be had the technical effect that：First it is heat-treated, post-processing chip area, and
And the high-temperature process link in being heat-treated, using progressive mode, the processing of sectional progress localized hyperthermia, rather than it is whole
Body carries out high-temperature process, is advantageous to prevent the deformation of slender piece, the processing of chip area in addition carries using the mode of grinding
High processing efficiency, is advantageous to that times footpath is big, the processing of the longer depth drill of length.
Brief description of the drawings
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 drills, 11- installation portions, 12- operator head mounting grooves, 13- locking holes, 14- auxiliary-blade grooves, 15- rows
Consider groove, 16- operator heads, 17- auxiliary-blades to be worth doing.
Embodiment
With specific embodiment, the invention will be further described below in conjunction with the accompanying drawings, referring to Fig. 1-3：
Embodiment one：
Step 1：H13 mould steel is chosen as raw material；
Step 2：H13 mould steel is lathed rod using numerically controlled lathe, and processes the installation portion 11 of end；
Step 3：Rod is finished；It is ± 2dmm that rod, which is carried out refining the required margin of tolerance,；
Step 4：By the front end of machining center milling depth drill 10, operator head mounting groove 12 and auxiliary-blade groove are processed
14, both are separately installed with operator first 16 and two auxiliary-blades 17, and pass through in the center of the operator head mounting groove 12
Drilling and tapping process locking hole 13, and screw rod locks operator first 16 through locking hole 13, and above-mentioned processing is by once pressing from both sides
Install into, avoid producing error during changing the outfit, improve machining accuracy；
Step 5：It is heat-treated, is first preheated, then be heated at high temperature, is heated at high temperature and is heated for piecewise advanceable, purpose
It is to prevent depth drill 10 from deforming, and is handled with care in processing procedure, heat time T2=28 "/mm*L, L is depth drill
10 total length；Then cooled down, finally carry out temper, after temper terminates, Slow cooling, avoid cooling speed
Spend causes workpiece to deform soon；
The temperature wherein preheated is 800 DEG C, preheating time T1, and preheating is twice；The temperature of high-temperature heating is 1015 DEG C, when
Between be T2；The type of cooling is oil cooling；The temperature of tempering be 520 DEG C, tempering time T3, in addition each two hour tempering once,
It is tempered altogether three times；
Above-mentioned T1=T2=T3；The technical requirements reached after heat treatment are：HRC54.
Step 6：The grinding of chip area 15 is carried out by grinding machine, concrete mode is that the front end of depth drill 10 is located at guide pin bushing
Interior, end is clamped by fixture, and shaft of the grinding tool along depth drill 10 is ground, and is ground curl；Employed in the step
The servicing unit of probe positioning, makes grinding tool navigate at auxiliary-blade groove 14, it is ensured that auxiliary-blade groove 14 is with the chip area 15 that is ground
Match.
Step 7：The side mouth of chip area 15 is ground, forms chip removal sword；
Step 8：Overall fine grinding is carried out to the surface of depth drill 10.
Embodiment two：
Step 1：H13 mould steel is chosen as raw material；
Step 2：H13 mould steel is lathed rod using numerically controlled lathe, and processes the installation portion 11 of end；
Step 3：Rod is finished；It is ± 2dmm that rod, which is carried out refining the required margin of tolerance,；
Step 4：By the front end of machining center milling depth drill 10, operator head mounting groove 12 and auxiliary-blade groove are processed
14, both are separately installed with operator first 16 and two auxiliary-blades 17, and pass through in the center of the operator head mounting groove 12
Drilling and tapping process locking hole 13, and screw rod locks operator first 16 through locking hole 13, and above-mentioned processing is by once pressing from both sides
Install into, avoid producing error during changing the outfit, improve machining accuracy；
Step 5：It is heat-treated, is first preheated, then be heated at high temperature, is heated at high temperature and is heated for piecewise advanceable, purpose
It is to prevent depth drill 10 from deforming, and is handled with care in processing procedure, heat time T2=28 "/mm*L, L is depth drill
10 total length；Then cooled down, finally carry out temper, after temper terminates, Slow cooling, avoid cooling speed
Spend causes workpiece to deform soon；
The temperature wherein preheated is 850 DEG C, preheating time T1, and preheating is twice；The temperature of high-temperature heating is 1035 DEG C, when
Between be T2；The type of cooling is oil cooling；The temperature of tempering be 530 DEG C, tempering time T3, in addition each two hour tempering once,
It is tempered altogether three times；
Above-mentioned T1=T2=T3；The technical requirements reached after heat treatment are：HRC56.
Step 6：The grinding of chip area 15 is carried out by grinding machine, concrete mode is that the front end of depth drill 10 is located at guide pin bushing
Interior, end is clamped by fixture, and shaft of the grinding tool along depth drill 10 is ground, and is ground curl；Employed in the step
The servicing unit of probe positioning, makes grinding tool navigate at auxiliary-blade groove 14, it is ensured that auxiliary-blade groove 14 is with the chip area 15 that is ground
Match.
Step 7：The side mouth of chip area 15 is ground, forms chip removal sword；
Step 8：Overall fine grinding is carried out to the surface of depth drill 10.
Embodiment three：
Step 1：H13 mould steel is chosen as raw material；
Step 2：H13 mould steel is lathed rod using numerically controlled lathe, and processes the installation portion 11 of end；
Step 3：Rod is finished；It is ± 2dmm that rod, which is carried out refining the required margin of tolerance,；
Step 4：By the front end of machining center milling depth drill 10, operator head mounting groove 12 and auxiliary-blade groove are processed
14, both are separately installed with operator first 16 and two auxiliary-blades 17, and pass through in the center of the operator head mounting groove 12
Drilling and tapping process locking hole 13, and screw rod locks operator first 16 through locking hole 13, and above-mentioned processing is by once pressing from both sides
Install into, avoid producing error during changing the outfit, improve machining accuracy；
Step 5：It is heat-treated, is first preheated, then be heated at high temperature, is heated at high temperature and is heated for piecewise advanceable, purpose
It is to prevent depth drill 10 from deforming, and is handled with care in processing procedure, heat time T2=28 "/mm*L, L is depth drill
10 total length；Then cooled down, finally carry out temper, after temper terminates, Slow cooling, avoid cooling speed
Spend causes workpiece to deform soon；
The temperature wherein preheated is 900 DEG C, preheating time T1, and preheating is twice；The temperature of high-temperature heating is 1060 DEG C, when
Between be T2；The type of cooling is oil cooling；The temperature of tempering be 540 DEG C, tempering time T3, in addition each two hour tempering once,
It is tempered altogether three times；
Above-mentioned T1=T2=T3；The technical requirements reached after heat treatment are：HRC58.
Step 6：The grinding of chip area 15 is carried out by grinding machine, concrete mode is that the front end of depth drill 10 is located at guide pin bushing
Interior, end is clamped by fixture, and shaft of the grinding tool along depth drill 10 is ground, and is ground curl；Employed in the step
The servicing unit of probe positioning, makes grinding tool navigate at auxiliary-blade groove 14, it is ensured that auxiliary-blade groove 14 is with the chip area 15 that is ground
Match.
Step 7：The side mouth of chip area 15 is ground, forms chip removal sword；
Step 8：Overall fine grinding is carried out to the surface of depth drill 10.
Following table is the drilling parameter comparison of the depth drill in diameter identical original depth drill and this technique：
Wherein Vc is drilling speed, and n is the speed of mainshaft, and fn is feed per revolution, and vf is feed speed, passes through pair of upper table
Than parameter, the processing technology that can be clearly understood that in the present invention has the raising of matter to the q＆r of depth drill,
Traditional depth drill is better than in processing efficiency and service life.
Above-described embodiment is only presently preferred embodiments of the present invention, is not limited the scope of the invention according to this, therefore：It is all according to
The equivalence changes that structure, shape, the principle of the present invention is done, all should be covered by within protection scope of the present invention.
Claims (4)
1. a kind of processing technology of cutter head changeable type depth drill, it is characterised in that comprise the following steps：
Step 1：H13 mould steel is chosen as raw material；
Step 2：H13 mould steel is lathed rod using numerically controlled lathe, and processes the installation portion of end；
Step 3：Rod is finished；
Step 4：By the front end of machining center milling depth drill, operator head mounting groove and auxiliary-blade groove are processed, and described
The center of operator head mounting groove processes locking hole by drilling and tapping, and above-mentioned processing is by once clamping completion；
Step 5：It is heat-treated, is first preheated, then be heated at high temperature, is heated at high temperature and is heated for piecewise advanceable, the heat time
T2=28 "/mm*L, L are the total length of depth drill；Then cooled down, finally carry out temper；
The temperature wherein preheated is 800 DEG C -900 DEG C, preheating time T1, and preheating is twice；The temperature of high-temperature heating be 1015 DEG C-
1060 DEG C, time T2；The type of cooling is oil cooling；The temperature of tempering is 520 DEG C -540 DEG C, tempering time T3, in addition every two
Individual hour tempering once, is tempered three times altogether；
Above-mentioned T1=T2=T3；
Step 6：The grinding of chip area is carried out by grinding machine, concrete mode is that the front end of depth drill is located in guide pin bushing, and end leads to
Cross fixture to clamp, grinding tool is ground along the shaft of depth drill, is ground curl；
Step 7：The side mouth of chip area is ground, forms chip removal sword；
Step 8：Overall fine grinding is carried out to the surface of depth drill.
A kind of 2. processing technology of cutter head changeable type depth drill according to claim 1, it is characterised in that：The step
In three, it is ± 2dmm that rod, which is carried out refining the required margin of tolerance,.
A kind of 3. processing technology of cutter head changeable type depth drill according to claim 1, it is characterised in that：The step
The technical requirements that are reached are after being heat-treated in five：HRC52-HRC58.
A kind of 4. processing technology of cutter head changeable type depth drill according to claim 1, it is characterised in that：The step
The servicing unit of probe positioning is employed in six, grinding tool is navigated at auxiliary-blade groove, it is ensured that auxiliary-blade groove is with the row that is ground
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 |
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| Publication Number | Publication Date |
|---|---|
| CN106181279A CN106181279A (en) | 2016-12-07 |
| CN106181279B true CN106181279B (en) | 2018-02-13 |
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| 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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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
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| CN106181279A (en) | 2016-12-07 |
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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 |