CN109807365A - Deep hole processing method - Google Patents
Deep hole processing method Download PDFInfo
- Publication number
- CN109807365A CN109807365A CN201910119194.XA CN201910119194A CN109807365A CN 109807365 A CN109807365 A CN 109807365A CN 201910119194 A CN201910119194 A CN 201910119194A CN 109807365 A CN109807365 A CN 109807365A
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- hole
- drill gun
- reamer
- diameter
- processing method
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- 238000003672 processing method Methods 0.000 title claims abstract description 16
- 238000005520 cutting process Methods 0.000 claims abstract description 35
- 238000012545 processing Methods 0.000 claims abstract description 34
- 238000003754 machining Methods 0.000 claims abstract description 14
- 238000003801 milling Methods 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 241000579971 Terebridae Species 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 15
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000005553 drilling Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000997 High-speed steel Inorganic materials 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000010730 cutting oil Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Drilling And Boring (AREA)
- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The invention discloses a kind of deep hole processing methods, include the following steps, 1) finishing predetermined depth drill gun pilot hole, 2) using drill gun process mandril via hole, the drill gun includes cutting portion, knife bar and guide rod, and the diameter of the drill gun pilot hole is oriented to shank diameter not less than drill gun；3) the functional hole first segment of predetermined depth is finished；4) reamer machining function hole remainder is utilized.Deep hole processing technology processing of the invention can effectively process the deep holes such as deeper straight top and inclined top hole, and for working depth up to hundreds of millimeters, the hole precision processed fully meets matching requirements.It is tested by processing, the hole 98% processed following this procedure can once succeed, and without doing over again, processing efficiency is high, and safety coefficient is high, and cost substantially reduces.
Description
Technical field
The invention belongs to technical fields of mechanical processing, and in particular to a kind of deep hole processing method.
Background technique
There are some deep hole machinings in medium-and-large-sized mold, and such as the jogger hole on mold, general hole depth 500mm or so is even
Bigger, precision 0.02mm-0.05mm, so processing is got up, degree-of-difficulty factor is big.The jogger hole angular deviation processed in the past is big, hole
Low precision, the poor surface smoothness in hole, concentricity is poor, difficult when assembly cooperates, and often does over again, processing efficiency is low, at high cost.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of deep hole processing method, the deep hole machining sides
Method effectively improves deep hole machining precision and efficiency.
The present invention is achieved by the following technical solutions:
A kind of deep hole processing method, includes the following steps,
1) the drill gun pilot hole of predetermined depth is finished,
2) mandril via hole is processed using drill gun, the drill gun includes cutting portion, knife bar and guide rod, and the drill gun draws
The diameter in hole is oriented to shank diameter not less than drill gun；
3) the functional hole first segment of predetermined depth is finished；
4) reamer machining function hole remainder is utilized.
In the above-mentioned technical solutions, the drill gun pilot hole depth is in 5-40mm.
In the above-mentioned technical solutions, the cutting face of the cutting portion includes A12 ° of the first cutting face B25 set gradually
℃90°；Second 90 ° of B25 DEG C of A25 ° of cutting face, A15 ° B-25 DEG C 90 ° of third cutting face, A15 ° B-35 DEG C 140 ° of the 4th cutting face
With A30 ° B0 DEG C 90 ° of the 5th cutting face.
In the above-mentioned technical solutions, in step 2, hole drill depth 10MM is crossed.
In the above-mentioned technical solutions, the machining tolerance+0.02MM of the functional hole first segment, depth 5-40MM, processing
Take copper sheathing trial to guarantee hole precision afterwards.
In the above-mentioned technical solutions, the processing reamer includes reamer cutting portion, reamer holder and reamer guide rod, institute
The reamer cutting portion stated is the knife grain that hot welding is welded on reamer holder end.Reamer holder diameter is unilateral smaller than reamer guide rod diameter
0.02MM or more.
In the above-mentioned technical solutions, the functional hole is jogger hole, further includes milling pressing plate groove simultaneously after the step 4
The step of auger shell wire hole.
In the above-mentioned technical solutions, the functional hole is ejector sleeve hole, and product column position has drafting angle, then described
Further include interior milling platform before step 1, then gets ready in platform and drilled step.
In the above-mentioned technical solutions, the ejector sleeve hole is 10mm, and the aperture of the inner platform is less than ejector pin
0.3mm, the diameter of the via hole are 9mm, and the diameter of the drill gun pilot hole is 9.8mm, the drill gun pilot hole and function
The depth of hole first segment is 5-10mm.
The advantages and benefits of the present invention are:
It is deep that deep hole processing technology processing of the invention can effectively process deep holes, the processing such as deeper straight top and inclined top hole
It spends up to hundreds of millimeters, the hole precision processed fully meets matching requirements.It tests by processing, processes following this procedure
The hole 98% come can once succeed, and without doing over again, processing efficiency is high, and safety coefficient is high, and cost substantially reduces.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of drill gun.
Fig. 2 is reamer structural schematic diagram.
Fig. 3 show ejector sleeve hole machined process first step schematic diagram.
Fig. 4 show ejector sleeve hole machined process second step schematic diagram.
It for those of ordinary skill in the art, without creative efforts, can be according to above attached
Figure obtains other relevant drawings.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, combined with specific embodiments below furtherly
Bright technical solution of the present invention.
Embodiment one
A kind of deep hole processing method of the invention, includes the following steps,
1) it finishes, such as mills the drill gun pilot hole of predetermined depth, the diameter of the drill gun pilot hole is more straight than preset functional hole
Diameter is small, and the depth of general small 0.2-0.5mm, the drill gun pilot hole of processing are determined according to the depth of deep hole to be processed or diameter etc., and one
As be 10mm or more；Wherein, the drill gun generally comprises end and is formed with the drilling rod of cutting portion and same with the drilling rod
Axis setting is for being oriented to the guide rod of the drill gun, the bore dia of diameter and the drill gun processing of the cutting portion and guide rod
Identical, the diameter of drilling rod is less than guide rod, such as small 0.02mm, that is, the diameter of the drill gun pilot hole is that the drill gun is led
To bar diameter to carry out drill gun guiding, alternatively, the diameter of the drill gun pilot hole, which is greater than the drill gun, is oriented to shank diameter, such as
Big 0.1mm.
2) mandril via hole is processed using drill gun, the guide rod of drill gun is rotatably assorted and is led with drill gun pilot hole at this time
To and going deep into drill gun, the hole section newly processed while being also oriented to the guide rod of drill gun, guarantee entire mistake
The machining accuracy of journey；
3) it finishes, such as mills the functional hole first segment of predetermined depth；The first segment of functional hole is to finish in this step,
Machining accuracy is design accuracy, such as 0.02mm, and finishing machining accuracy is high but processing efficiency is low, so the functional hole first segment
Working depth meet subsequent reamer guiding, generally 10mm or more.
4) utilize reamer machining function hole remainder, wherein reamer includes the cutting portion of front end, the knife bar at middle part and
The guide rod of rear end, the cutting portion, knife bar, that is, guide rod coaxial arrangement, the diameter phase of the cutting portion and guide rod
Together, the diameter of the knife bar is small, such as small 0.02mm, and the diameter of guide rod and cutting portion is the design diameter of functional hole,
For functional hole first segment to gradually downward retrofit under the guidance of guide rod, processing caused by avoiding cutter head too long is bad, and
The new function hole section processed also gradually provides guide function.
It is deep that deep hole processing technology processing of the invention can effectively process deep holes, the processing such as deeper straight top and inclined top hole
It spends up to hundreds of millimeters, the hole precision processed fully meets matching requirements.It tests by processing, processes following this procedure
The hole 98% come can once succeed, and without doing over again, processing efficiency is high, and safety coefficient is high, and cost substantially reduces.
Embodiment two
Carried out for carrying out jogger hole processing exemplary illustrated: its specific procedure of processing include hereinafter,
1. drill gun pilot hole is milled, when processing drill gun pilot hole, guide rod enlarged diameter 0.1MM of the diameter with respect to drill gun, hole depth
30MM guarantees guiding performance.
2. drill gun drills, hole drill depth 10MM is crossed.Wherein, the drill gun angle of drill gun cutting portion is as shown in table 1,
Table 1
| Angle 1 | Angle 2 | Angle 3 |
| Positive 25 | Positive 12 | 90 |
| Minus 25 | Positive 15 | 90 |
| Minus 35 | Positive 15 | Positive 140 |
| 0 | Positive 30 | 90 |
That is, the cutting face of the cutting portion includes the first cutting face set gradually, A12 ° B25 DEG C 90 °；Second cutting
A25 ° B25 DEG C 90 ° of face, A15 ° B-25 DEG C 90 ° of third cutting face, A15 ° B-35 DEG C 140 ° of the 4th cutting face and the 5th cutting face
A30°B0℃90°.Changing drill gun angle can make a greater amount of cutting oil streams through knife face, can play the effect for reducing temperature.It can
So that chip removal becomes easy, cutting resistance reduces.
3. finishing functional hole first segment, i.e. reamer pilot hole, machining tolerance+0.02MM, depth 30MM take copper sheathing trial,
Guarantee hole precision
4, reamer reams, wherein the processing reamer includes knife bar and knife grain, and guide rod and knife grain hot welding are welded.This knife
Grain material uses carbide cutter tool grain, and knife grain is wear-resisting, and feeding is fast, at low cost, is reamed using special reamer is customized, before efficiency ratio
3 times are improved, the precision and surface smoothness in hole can be guaranteed, and cost is greatly lowered.2, knife grain and knife bar use hot welding
Welding, is convenient for changing and reprocesses, and at low cost 3, this knife bar inlays knife grain using high-speed steel knife bar self-made type is interchangeable, at low cost, adds
Work precision is high
5) include the steps that milling pressing plate groove and auger shell wire hole.
Embodiment three
It is illustrated so that the functional hole is diameter 10mm ejector sleeve hole as an example, specific step is as follows,
1) because product column position has drafting angle, then interior first to mill platform, aperture is less than ejector sleeve pin hole 0.3MM；Platform
Effect is to provide a processing plane；
2) it then gets ready and drill-through hole, is got ready with centre drill or bead knife, wherein the handle of centre drill or ball knife in platform
Diameter must be smaller than pilot hole so as to chip removal；
3) drill bit boresVia hole crosses hole drill depth 10MM, and when drilling, which need to be kept a close eye on, bores nozzle variation, bore nozzle it is abnormal when it is timely
Nozzle is bored in replacement, avoids bit part and workpiece surface serious friction and burns out workpiece surface (surface hardness raising), causes to be redrilled
When bore motionless or cause beat.
4) D9.8 drill bit pilot hole is milled, the circular hole for processing a deep 5~10mm of size as bit diameter does drilling guiding
Hole, to ensure the machining accuracy to drill, the diameter of circular hole must as bit diameter size, otherwise guide effect is bad drills out
The hole come can be inclined,
5) then D9.8 drill bit reaming, the deep about 10mm of subdrilling when boring each hole are fixed tentatively and are checked whether that brill is big, with bore nozzle
It is big whether the identical two kinds of tools examination inspection with the big 0.1mm of diameter group of diameter has, and has the swing for re-calibrating drill bit greatly, Yao Baozheng
The unilateral subsequent fraising of surplus 0.1mm,
6) D10 reamer pilot hole is milled, guarantees tolerance+0.01MM.
7) D10 reamer reams: knife pendulum must be surveyed before fraising, for weave control in unilateral 0.01mm, swinging is more than that this value is tight
Taboo is cut, and reamer hinge wears 5-8mm；Wherein, the unilateral small 0.02MM of the diameter than hole diameter of the shaft portion of reamer is to reduce friction.
The dimensional accuracy in ejector sleeve hole can be effectively ensured according to the processing of this technique, product can effectively be avoided to generate burr, and
And it is not required to electro-discharge machining, it can directly be processed in CNC, reduce the time of favourable turn, substantially increase processing efficiency, saved
Cost.
The spatially relative terms such as "upper", "lower", "left", "right" have been used in embodiment for ease of explanation, have been used for
Relationship of the elements or features relative to another elements or features shown in explanatory diagram.It should be understood that in addition to figure
Shown in except orientation, spatial terminology is intended to include the different direction of device in use or operation.For example, if in figure
Device be squeezed, the element for being stated as being located at other elements or feature "lower" will be located into other elements or feature "upper".
Therefore, exemplary term "lower" may include both upper and lower orientation.Device, which can be positioned in other ways, (to be rotated by 90 ° or position
In other orientation), it can be interpreted accordingly used herein of the opposite explanation in space.
Moreover, the relational terms of such as " first " and " second " or the like are used merely to one with another with identical
The component of title distinguishes, without necessarily requiring or implying between these components there are any this actual relationship or
Sequentially.
Illustrative description has been done to the present invention above, it should explanation, the case where not departing from core of the invention
Under, any simple deformation, modification or other skilled in the art can not spend the equivalent replacement of creative work equal
Fall into protection scope of the present invention.
Claims (9)
1. a kind of deep hole processing method, it is characterised in that: include the following steps,
1) the drill gun pilot hole of predetermined depth is finished,
2) mandril via hole is processed using drill gun, the drill gun includes cutting portion, knife bar and guide rod, the drill gun pilot hole
Diameter is oriented to shank diameter not less than drill gun；
3) the functional hole first segment of predetermined depth is finished；
4) reamer machining function hole remainder is utilized.
2. a kind of deep hole processing method according to claim 1, it is characterised in that: the drill gun pilot hole depth is in 5-
40mm。
3. a kind of deep hole processing method according to claim 1, it is characterised in that: the cutting face of the cutting portion includes
A12 ° B25 DEG C 90 ° of the first cutting face set gradually；Second 90 ° of B25 DEG C of A25 ° of cutting face, A15 ° B-25 DEG C of third cutting face
A30 ° B0 DEG C 90 ° of 90 °, A15 ° B-35 DEG C 140 ° of the 4th cutting face and the 5th cutting face.
4. a kind of deep hole processing method according to claim 1, it is characterised in that: in step 2, cross hole drill depth 10MM.
5. a kind of deep hole processing method according to claim 1, it is characterised in that: the processing of the functional hole first segment
Tolerance+0.02MM, depth 5-40MM take copper sheathing trial to guarantee hole precision after processing.
6. a kind of deep hole processing method according to claim 1, it is characterised in that: the processing reamer includes that reamer is cut
Portion, reamer holder and reamer guide rod are cut, the reamer cutting portion is the knife grain that hot welding is welded on reamer holder end.Reamer
Knife bar diameter is small 0.02MM more unilateral or more than reamer guide rod diameter.
7. a kind of deep hole processing method according to claim 1, it is characterised in that: the functional hole is jogger hole,
Further include the steps that milling pressing plate groove and auger shell wire hole after the step 4.
8. a kind of deep hole processing method according to claim 1, it is characterised in that: the functional hole is ejector sleeve hole, is produced
Capo position has drafting angle, then further includes interior milling platform before the step 1, then gets ready in platform and drilled
Step.
9. a kind of deep hole processing method according to claim 7, it is characterised in that: the ejector sleeve hole is 10mm, described
The aperture of inner platform be less than ejector pin 0.3mm, the diameter of the via hole is 9mm, and the diameter of the drill gun pilot hole is
The depth of 9.8mm, the drill gun pilot hole and functional hole first segment is 5-10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910119194.XA CN109807365A (en) | 2019-02-18 | 2019-02-18 | Deep hole processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910119194.XA CN109807365A (en) | 2019-02-18 | 2019-02-18 | Deep hole processing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109807365A true CN109807365A (en) | 2019-05-28 |
Family
ID=66606852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910119194.XA Pending CN109807365A (en) | 2019-02-18 | 2019-02-18 | Deep hole processing method |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110722324A (en) * | 2019-08-29 | 2020-01-24 | 武汉船用机械有限责任公司 | Processing method of ejector hole |
| CN112676597A (en) * | 2020-12-17 | 2021-04-20 | 昆山利东精密工业有限公司 | Deep hole machining process for camera assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004130413A (en) * | 2002-10-09 | 2004-04-30 | Yunitakku Kk | Deep hole cutting tool |
| CN101282809A (en) * | 2005-10-03 | 2008-10-08 | 三菱麻铁里亚尔株式会社 | Boring tool and method of boring pilot hole |
| CN102019467A (en) * | 2009-09-22 | 2011-04-20 | 广西玉柴机器股份有限公司 | Processing method of diesel camshaft holes and cutter |
| CN104551542A (en) * | 2013-10-29 | 2015-04-29 | 青岛齐力铸钢有限公司 | Super-long deep hole machining method for 4145H drill collar steel |
| CN108115176A (en) * | 2017-12-18 | 2018-06-05 | 航天科工哈尔滨风华有限公司 | A kind of high-precision step shaft titanium alloy material Fine and Deep Hole high-efficiency machining method |
-
2019
- 2019-02-18 CN CN201910119194.XA patent/CN109807365A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004130413A (en) * | 2002-10-09 | 2004-04-30 | Yunitakku Kk | Deep hole cutting tool |
| CN101282809A (en) * | 2005-10-03 | 2008-10-08 | 三菱麻铁里亚尔株式会社 | Boring tool and method of boring pilot hole |
| CN102019467A (en) * | 2009-09-22 | 2011-04-20 | 广西玉柴机器股份有限公司 | Processing method of diesel camshaft holes and cutter |
| CN104551542A (en) * | 2013-10-29 | 2015-04-29 | 青岛齐力铸钢有限公司 | Super-long deep hole machining method for 4145H drill collar steel |
| CN108115176A (en) * | 2017-12-18 | 2018-06-05 | 航天科工哈尔滨风华有限公司 | A kind of high-precision step shaft titanium alloy material Fine and Deep Hole high-efficiency machining method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110722324A (en) * | 2019-08-29 | 2020-01-24 | 武汉船用机械有限责任公司 | Processing method of ejector hole |
| CN112676597A (en) * | 2020-12-17 | 2021-04-20 | 昆山利东精密工业有限公司 | Deep hole machining process for camera assembly |
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Application publication date: 20190528 |