CN104551091B - Method for machining small deep hole of part by using peck type variable speed drilling - Google Patents
Method for machining small deep hole of part by using peck type variable speed drilling Download PDFInfo
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- CN104551091B CN104551091B CN201410771311.8A CN201410771311A CN104551091B CN 104551091 B CN104551091 B CN 104551091B CN 201410771311 A CN201410771311 A CN 201410771311A CN 104551091 B CN104551091 B CN 104551091B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
- B23B41/02—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor for boring deep holes; Trepanning, e.g. of gun or rifle barrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
- B23B41/14—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor for very small holes
-
- 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
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/02—Machine tools for performing different machining operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2250/00—Compensating adverse effects during turning, boring or drilling
- B23B2250/12—Cooling and lubrication
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Drilling And Boring (AREA)
Abstract
The invention relates to the technical field of machining of a small deep hole of a mechanical part, in particular to a method for machining the small deep hole of the part by using peck type variable speed drilling. Small deep hole punching treatment is performed on drill bit rotation speed and a drill bit in a small deep hole machining process of the part, and further the phenomenon that the drill bit is broken does not occur when the small deep hole of the part is machined; the use of high-pressure cooling liquid is combined, so waste chips can be fully discharged during drilling of the drill bit to avoid obstruction of the drill bit and improve the drill bit punching efficiency; then the drill bit rotation speed is controlled to a certain extent, further the damage caused to the drill bit by elasticity or vibration produced at the moment of punching of the small deep hole is avoided, and further the machining cost of the small deep hole of the part is reduced.
Description
Technical field
The present invention relates to machine components small hole processing technique field, especially a kind of employing peck formula speed change Drilling operation
Part small hole method.
Background technology
The processing method that small hole is carried out on part is a lot, and is also added by the substantial amounts of part for precision instrument
During work；For the processing method of small hole have in the prior art bit bore, electric spark-erosion perforation, laser boring or
Ultrasound punching etc.；And for these process technologies present in prior art are respectively provided with more serious technological deficiency, these skills
Art defect can not only affect the quality of the processing of small hole on part, and also result in after the part is machined and set for certain
Qualification rate when being equipped in standby, and then cause that the processing cost of part is larger, qualification rate is relatively low.Such as spark machined is small
Deep hole, it will cause that piece surface is more coarse, accessory size precision is poor, production cost is higher；Laser machine small depth
Hole, it will cause Part Surface Roughness low, but its poor dimensional precision, and affected by power output and focusing so that its
It is only suitable for being processed on thin plate, further causes universality poor；And ultrasonic small hole processing is only suitable in fragility
Process on material, therefore, more generally adopt in field of machining, and the processing technology of lower cost is drill bit brill
Hole, its reason is that drilling has productivity ratio high, is not limited by material characteristicses performance, and the micro hole draw ratio for processing is big, surface
Quality and machining accuracy are high, are that a kind of economy, precision, efficiency have the manufacturing process of greater advantage.
But, conventional boring method is little because of bit diameter, and its rigidity, intensity are extremely low, the moment soon drilled through in aperture by
In part and the elastic force of lathe generation by broken drill, simultaneously because chip space is little, in deep hole processing, iron filings are difficult to exclude,
So as to cause drill bit fragile, and because processing district radiating is difficult, the temperature of drill bit is higher, and service life is low.
For this purpose, this researcher is modified conventional boring method by long-term exploration and research, and then for drill bit
Boring method carries out part small hole plus man-hour, there is provided a kind of new selection.
The content of the invention
In order to solve above-mentioned technical problem present in prior art, offer one kind of the invention is added using the drilling of formula speed change is pecked
Work part small hole method, the method accurately can be processed to part small hole, and can will peck formula
In speed change drilling application and the processing of part small hole, so avoid being drilled through caused by constant speed punching the elastic of moment part or
Vibrate the damage brought to drill bit, also improve part small hole processing quality, reduce small hole processing into
This.
It is achieved particular by technical scheme below：
One kind is comprised the following steps using formula speed change Drilling operation part small hole method is pecked：
(1) part is installed：Parts to be processed is positioned on workbench, and using centering workpiece centering part, and by zero
Part is arranged on fixture, stand-by；
(2) clamping cutter：According to the flatness of the end face of part aperture to be processed, drill bit or drill bit are installed and milling cutter exists
On fixture；If only installing drill bit, centering drill bit, and when controlling the bounce size≤0.01mm of drill bit, record the length of drill bit
The diameter dimension of size and drill bit；If installing drill bit and milling cutter, centering drill bit, and control the bounce size≤0.01mm of drill bit
When, the length dimension of drill bit and the diameter dimension of drill bit, then centering milling cutter are recorded, and control the bounce size≤0.02mm of milling cutter
When, the length dimension and diameter dimension of milling cutter are recorded, it is stand-by；
(3) parameter input：According to the flatness of the end face of part aperture to be processed, drill bit or drill bit are installed and milling cutter exists
On lathe, and input step 2 in the controls) length dimension of the drill bit of record and diameter dimension or sequentially input drill bit
It is stand-by after the respective length dimension of milling cutter and diameter dimension；
(4) hole depth is determined：Determine and record the depth of the micro hole with processing part；
(5) machined parameters are determined：According to the material and step 2 of parts to be processed) determine cutter dimensional parameters, control
The speed of drill bit processed, the quantity delivered of coolant and peck drilling depth every time, it is stand-by；
(6) processing is opened：Be first turned on cool down liquid supply system, and start using peck formula boring method carry out drill process or
Person is first turned on cooling down liquid supply system, then using milling cutter by the ends cutting of part micropore to be processed into plane, and start to adopt
Drilling process is carried out with formula boring method is pecked, when drill bit is machined to the depth residue 0.8-1.2mm of micro hole, by the rotating speed of drill bit
40-60% is reduced to, then drills through micro hole, you can complete the small hole processing of part.
Described drill bit or drill bit and milling cutter, if according to parts to be processed surface plane, then install and bore
Head；If curved surface, then drill bit and milling cutter are installed as.
Described pecks every time drilling depth, treats to peck every time after the completion of drilling depth, just drill bit is exited at aperture end face 2mm,
Stand 0.5-1min.
Compared with prior art, technique effect of the invention is embodied in：
1. by carrying out small hole punching to the drill bit velocity of rotation and drill bit in part small hole processing technology
The method of process, and then cause carrying out part small hole plus man-hour, be not in the phenomenon generation that drill bit is broken off, and
With reference to the use of high-pressure coolant so that during bit bore, scrap therein can be excluded sufficiently, it is to avoid to drill bit
Hinder, improve drill bit perforating efficiency；Again certain control is carried out to drill bit velocity of rotation, and then avoid and beaten in small hole
Wear the elasticity of moment generation or vibrate the damage brought to drill bit, and then reduce the processing cost of part small hole.
2. in processing technology, by the flatness in part face to be processed, to the drill bit installed, the situation of milling cutter is controlled
System, and then the face to be processed for causing to process part is plane, reduces the vibratility of part and the local derviation of drill bit, and then guarantee
In process it is not result in the damage of part, it is ensured that the quality of processing part.
Specific embodiment
Technical scheme is further limited with reference to specific embodiment, but claimed
Scope is not only limited to description.
Embodiment 1
One kind is comprised the following steps using formula speed change Drilling operation part small hole method is pecked：
(1) part is installed：Parts to be processed is positioned on workbench, and using centering workpiece centering part, and by zero
Part is arranged on fixture, stand-by；
(2) clamping cutter：When the end face of part aperture to be processed is plane, drill bit, centering drill bit are installed, and control drill bit
Bounce size≤0.01mm when, record drill bit length dimension and drill bit diameter dimension, it is stand-by；
(3) parameter input：When the end face of part aperture to be processed is plane, drill bit is installed on lathe, and in control system
Input step 2 in system) record drill bit length dimension and diameter dimension, it is stand-by；
(4) hole depth is determined：Determine and record the depth of the micro hole with processing part；
(5) machined parameters are determined：According to the material and step 2 of parts to be processed) determine cutter dimensional parameters, control
The speed of drill bit processed, the quantity delivered of coolant and peck drilling depth every time, it is stand-by；
(6) processing is opened：Be first turned on cool down liquid supply system, and start using peck formula boring method carry out drilling process treat
When drill bit is machined to the depth residue 0.8mm of micro hole, the rotating speed of drill bit is reduced to into 40%, then drills through micro hole, you can be complete
Small hole into part is processed.
Described pecks every time drilling depth, treats to peck every time after the completion of drilling depth, just drill bit is exited at aperture end face 2mm,
Stand 0.5min.
Embodiment 2
One kind is comprised the following steps using formula speed change Drilling operation part small hole method is pecked：
(1) part is installed：Parts to be processed is positioned on workbench, and using centering workpiece centering part, and by zero
Part is arranged on fixture, stand-by；
(2) clamping cutter：The end face of part aperture to be processed is curved surface, and installation drill bit and milling cutter are on fixture；Centering is bored
Head, and when controlling the bounce size≤0.01mm of drill bit, record the length dimension of drill bit and the diameter dimension of drill bit, then centering milling
Knife, and when controlling the bounce size≤0.02mm of milling cutter, the length dimension and diameter dimension of milling cutter is recorded, it is stand-by；
(3) parameter input：By drill bit and milling cutter on lathe, and input step 2 in the controls) drill bit of record and
It is stand-by after the respective length dimension of milling cutter and diameter dimension；
(4) hole depth is determined：Determine and record the depth of the micro hole with processing part；
(5) machined parameters are determined：According to the material and step 2 of parts to be processed) determine cutter dimensional parameters, control
The speed of drill bit processed, the quantity delivered of coolant and peck drilling depth every time, it is stand-by；
(6) processing is opened：It is first turned on cooling down liquid supply system, then is cut the end face of part micropore to be processed using milling cutter
It is cut into plane, and starts to carry out drilling process using pecking formula boring method, treats that drill bit is machined to the depth residue 1.2mm of micro hole
When, the rotating speed of drill bit is reduced to into 60%, then drill through micro hole, you can complete the small hole processing of part.
Described pecks every time drilling depth, treats to peck every time after the completion of drilling depth, just drill bit is exited at aperture end face 2mm,
Stand 1min.
Embodiment 3
One kind is comprised the following steps using formula speed change Drilling operation part small hole method is pecked：
(1) part is installed：Parts to be processed is positioned on workbench, and using centering workpiece centering part, and by zero
Part is arranged on fixture, stand-by；
(2) clamping cutter：The end face of part aperture to be processed is curved surface, and installation drill bit and milling cutter are on fixture；Centering is bored
Head, and when controlling the bounce size≤0.01mm of drill bit, record the length dimension of drill bit and the diameter dimension of drill bit, then centering milling
Knife, and when controlling the bounce size≤0.02mm of milling cutter, the length dimension and diameter dimension of milling cutter is recorded, it is stand-by；
(3) parameter input：By drill bit and milling cutter on lathe, and input step 2 in the controls) drill bit of record and
It is stand-by after the respective length dimension of milling cutter and diameter dimension；
(4) hole depth is determined：Determine and record the depth of the micro hole with processing part；
(5) machined parameters are determined：According to the material and step 2 of parts to be processed) determine cutter dimensional parameters, control
The speed of drill bit processed, the quantity delivered of coolant and peck drilling depth every time, it is stand-by；
(6) processing is opened：It is first turned on cooling down liquid supply system, then is cut the end face of part micropore to be processed using milling cutter
It is cut into plane, and starts to carry out drilling process using pecking formula boring method, when drill bit is machined to the depth residue 1mm of micro hole,
The rotating speed of drill bit is reduced to into 50%, then drills through micro hole, you can complete the small hole processing of part.
Described pecks every time drilling depth, treats to peck every time after the completion of drilling depth, just drill bit is exited at aperture end face 2mm,
Stand 0.8min.
Embodiment 4
One kind is comprised the following steps using formula speed change Drilling operation part small hole method is pecked：
(1) part is installed：Parts to be processed is positioned on workbench, and using centering workpiece centering part, and by zero
Part is arranged on fixture, stand-by；
(2) clamping cutter：When the end face of part aperture to be processed is plane, drill bit, centering drill bit are installed, and control drill bit
Bounce size≤0.01mm when, record drill bit length dimension and drill bit diameter dimension, it is stand-by；
(3) parameter input：When the end face of part aperture to be processed is plane, drill bit is installed on lathe, and in control system
Input step 2 in system) record drill bit length dimension and diameter dimension, it is stand-by；
(4) hole depth is determined：Determine and record the depth of the micro hole with processing part；
(5) machined parameters are determined：According to the material and step 2 of parts to be processed) determine cutter dimensional parameters, control
The speed of drill bit processed, the quantity delivered of coolant and peck drilling depth every time, it is stand-by；
(6) processing is opened：Be first turned on cool down liquid supply system, and start using peck formula boring method carry out drilling process treat
When drill bit is machined to the depth residue 0.9mm of micro hole, the rotating speed of drill bit is reduced to into 45%, then drills through micro hole, you can be complete
Small hole into part is processed.
Described pecks every time drilling depth, treats to peck every time after the completion of drilling depth, just drill bit is exited at aperture end face 2mm,
Stand 0.6min.
Here it is important to point out that, above example be only limitted to be further elaborated technical scheme and
Illustrate, be not the further restriction to technical scheme, it is non-that those skilled in the art make on this basis
The improvement of prominent essential characteristics and non-significant progress, belongs to the protection category of the present invention.
Claims (3)
1. a kind of employing pecks formula speed change Drilling operation part small hole method, it is characterised in that comprise the following steps：
(1) part is installed：Parts to be processed is positioned on workbench, and using centering workpiece centering part, and part is pacified
It is mounted on fixture, it is stand-by；
(2) clamping cutter：According to the flatness of the end face of part small hole to be processed, drill bit or drill bit are installed and milling cutter exists
On fixture；If only installing drill bit, centering drill bit, and when controlling the bounce size≤0.01mm of drill bit, record the length of drill bit
The diameter dimension of size and drill bit；If installing drill bit and milling cutter, centering drill bit, and control the bounce size≤0.01mm of drill bit
When, the length dimension of drill bit and the diameter dimension of drill bit, then centering milling cutter are recorded, and control the bounce size≤0.02mm of milling cutter
When, the length dimension and diameter dimension of milling cutter are recorded, it is stand-by；
(3) parameter input：According to the flatness of the end face of part small hole to be processed, drill bit or drill bit are installed and milling cutter exists
On lathe, and the length dimension of the drill bit of input step (2) record and diameter dimension or sequentially input brill in the controls
It is stand-by after head and the respective length dimension of milling cutter and diameter dimension；
(4) small hole depth is determined：Determine and record the depth of the small hole of parts to be processed；
(5) machined parameters are determined：The dimensional parameters of the cutter determined according to the material and step (2) of parts to be processed, control
The speed of drill bit, the quantity delivered of coolant and peck drilling depth every time, it is stand-by；
(6) processing is opened：It is first turned on cooling down liquid supply system, and starts to carry out drill process or head using pecking formula boring method
First open cooling liquid supply system, then using milling cutter by the ends cutting of part small hole to be processed into plane, and start to adopt
Drilling process is carried out with formula boring method is pecked, when drill bit is machined to the depth residue 0.8-1.2mm of small hole, turning drill bit
Prompt drop as little as 40-60%, then drill through small hole, you can complete the small hole processing of part.
2. as claimed in claim 1 employing pecks formula speed change Drilling operation part small hole method, it is characterised in that described
Drill bit or drill bit and milling cutter, if according to parts to be processed surface plane, then drill bit is installed；If curved surface, then
It is installed as drill bit and milling cutter.
3. as claimed in claim 1 employing pecks formula speed change Drilling operation part small hole method, it is characterised in that described
Peck drilling depth every time, treat to peck every time after the completion of drilling depth, just drill bit is exited at small hole end face 2mm, stand 0.5-
1min。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410771311.8A CN104551091B (en) | 2014-12-15 | 2014-12-15 | Method for machining small deep hole of part by using peck type variable speed drilling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410771311.8A CN104551091B (en) | 2014-12-15 | 2014-12-15 | Method for machining small deep hole of part by using peck type variable speed drilling |
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| CN104551091A CN104551091A (en) | 2015-04-29 |
| CN104551091B true CN104551091B (en) | 2017-05-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110181094A (en) * | 2019-05-31 | 2019-08-30 | 四川工程职业技术学院 | A kind of small hole processing method on phosphorus content≤0.6% steel |
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| CN104551091A (en) | 2015-04-29 |
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