CN104551091A - 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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- CN104551091A CN104551091A CN201410771311.8A CN201410771311A CN104551091A CN 104551091 A CN104551091 A CN 104551091A CN 201410771311 A CN201410771311 A CN 201410771311A CN 104551091 A CN104551091 A CN 104551091A
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- drill bit
- milling cutter
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- deep hole
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Classifications
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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 pecks formula speed change Drilling operation part small hole method.
Background technology
The processing method that part carries out small hole is a lot, and also by a large amount of in the part process of precision instrument; Processing method for small hole has bit bore, electric spark-erosion perforation, laser boring or ultrasonic punching etc. in the prior art; And for these process technologies existed in prior art, all there is comparatively serious technological deficiency, these technological deficiencies not only can affect the quality of small hole processing on part, but also this part can be caused to machine after for equipping in certain equipment time qualification rate, and then causing the processing cost of part comparatively large, qualification rate is lower.As spark machined small hole, will cause that piece surface is comparatively coarse, the precision of accessory size is poor, production cost is higher; Laser Processing small hole, will cause Part Surface Roughness low, but its poor dimensional precision, and be subject to the impact of power output and focusing, make it be suitable for processing on thin plate, further cause universality poor; And ultrasonic small hole processing is only suitable for processing on fragile material, therefore, comparatively generally adopt in field of machining, and the processing technology of lower cost is bit bore, it is high that its reason is that drilling has productivity ratio, and do not limit by material characteristics performance, the micro hole draw ratio processed is large, surface quality and machining accuracy high, be a kind of economy, precision, efficiency have the manufacturing process of greater advantage.
But, conventional boring method because of bit diameter little, its rigidity, intensity are extremely low, the elastic force produced due to part and lathe in the moment that aperture soon drills through is by broken drill, and simultaneously because chip space is little, when deep hole processing, iron filings are difficult to get rid of, thus cause drill bit fragile, and due to processing district heat radiation difficulty, the temperature of drill bit is higher, and service life is low.
For this reason, the boring method of routine, by long-term Exploration & stu dy, is revised by this researcher, and then carries out part small hole for bit bore method and add man-hour, provides a kind of new selection.
Summary of the invention
In order to solve the above-mentioned technical problem existed in prior art, the invention provides a kind of employing and peck formula speed change Drilling operation part small hole method, the method can carry out processing process to part small hole accurately, and in can processing pecking formula speed change boring application with part small hole, and then the elasticity drilling through moment part avoiding constant speed to punch causing or vibrate the damage that brings to drill bit, also improve the quality of part small hole processing, reduce the cost of small hole processing.
Be achieved particular by following technical scheme:
A kind of employing pecks formula speed change Drilling operation part small hole method, comprises the following steps:
(1) part is installed: be positioned on workbench by part to be processed, and adopt centering workpiece centering part, and be arranged on fixture by part, stand-by;
(2) clamping cutter: according to the flatness of the end face of part aperture to be processed, installs drill bit or drill bit and milling cutter on fixture; If only install drill bit, then centering drill bit, and control drill bit beat size≤0.01mm time, the record length dimension of drill bit and the diameter dimension of drill bit; If install drill bit and milling cutter, then centering drill bit, and control drill bit beat size≤0.01mm time, the record length dimension of drill bit and the diameter dimension of drill bit, then centering milling cutter, and control milling cutter beat size≤0.02mm time, the length dimension of record milling cutter and diameter dimension, stand-by;
(3) parameters input: according to the flatness of the end face of part aperture to be processed, drill bit or drill bit and milling cutter are installed on lathe, and input step 2 in the controls) length dimension of drill bit that records and diameter dimension or after inputting the respective length dimension of drill bit and milling cutter and diameter dimension successively, stand-by;
(4) hole depth is determined: determine and the degree of depth of the micro hole of record paper processing parts;
(5) machined parameters is determined: material and step 2 according to part to be processed) dimensional parameters of cutter determined, control the speed of drill bit, the quantity delivered of cooling fluid and peck drilling depth at every turn, stand-by;
(6) processing is opened: first open cooling fluid feed system, and start employing peck formula boring method carry out boring process or first open cooling fluid feed system, adopt milling cutter that the ends cutting of micropore to be processed for part is become plane again, and start employing peck formula boring method carry out boring process, when drill bit is machined to the degree of depth residue 0.8-1.2mm of micro hole, the rotating speed of drill bit is reduced to 40-60%, then drills through micro hole, the small hole processing of part can be completed.
Described drill bit or drill bit and milling cutter, if follow the surface plane of part to be processed, then drill bit is installed; If curved surface, be then installed as drill bit and milling cutter.
Described pecks drilling depth at every turn, after pecking drilling depth at every turn and completing, is just exited by drill bit apart from aperture end face 2mm place, leaves standstill 0.5-1min.
Compared with prior art, technique effect of the present invention is embodied in:
1. by carrying out the method for small hole punching process to the drill bit rotational speed in part small hole processing technology and drill bit, and then make to add man-hour carrying out part small hole, drill bit is there will not be to be produced by the phenomenon fractureed, and in conjunction with the use of high-pressure coolant, when making bit bore, scrap wherein can be excluded fully, avoids the obstruction to drill bit, improves drill bit perforating efficiency; Again certain control is carried out to drill bit rotational speed, and then avoid and punch at small hole the elasticity that produces instantaneously 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 of to be processed of part, to the drill bit installed, the situation of milling cutter controls, and then make to be processed of processing parts for plane, reduce the vibratility of part and the local derviation of drill bit, and then ensure that the damage that can not cause part in process, ensure that the quality of processing parts.
Detailed description of the invention
Below in conjunction with concrete embodiment, further restriction is done to technical scheme of the present invention, but claimed scope is not only confined to done description.
Embodiment 1
A kind of employing pecks formula speed change Drilling operation part small hole method, comprises the following steps:
(1) part is installed: be positioned on workbench by part to be processed, and adopt centering workpiece centering part, and be arranged on fixture by part, stand-by;
(2) clamping cutter: when the end face of part aperture to be processed is plane, installs drill bit, centering drill bit, and control drill bit beat size≤0.01mm time, the record length dimension of drill bit and the diameter dimension of drill bit, stand-by;
(3) parameters input: when the end face of part aperture to be processed is plane, installs drill bit on lathe, and input step 2 in the controls) length dimension of drill bit that records and diameter dimension, stand-by;
(4) hole depth is determined: determine and the degree of depth of the micro hole of record paper processing parts;
(5) machined parameters is determined: material and step 2 according to part to be processed) dimensional parameters of cutter determined, control the speed of drill bit, the quantity delivered of cooling fluid and peck drilling depth at every turn, stand-by;
(6) processing is opened: first open cooling fluid feed system, and start to adopt peck formula boring method carry out hole process head to be drilled be machined to micro hole the degree of depth residue 0.8mm time, the rotating speed of drill bit is reduced to 40%, then drills through micro hole, the small hole processing of part can be completed.
Described pecks drilling depth at every turn, after pecking drilling depth at every turn and completing, is just exited by drill bit apart from aperture end face 2mm place, leaves standstill 0.5min.
Embodiment 2
A kind of employing pecks formula speed change Drilling operation part small hole method, comprises the following steps:
(1) part is installed: be positioned on workbench by part to be processed, and adopt centering workpiece centering part, and be arranged on fixture by part, stand-by;
(2) clamping cutter: the end face of part aperture to be processed is curved surface, installation drill bit and milling cutter are on fixture; Centering drill bit, and control drill bit beat size≤0.01mm time, the record length dimension of drill bit and the diameter dimension of drill bit, then centering milling cutter, and control milling cutter beat size≤0.02mm time, the length dimension of record milling cutter and diameter dimension, stand-by;
(3) parameters input: by drill bit and milling cutter on lathe, and input step 2 in the controls) after the respective length dimension of the drill bit that records and milling cutter and diameter dimension, stand-by;
(4) hole depth is determined: determine and the degree of depth of the micro hole of record paper processing parts;
(5) machined parameters is determined: material and step 2 according to part to be processed) dimensional parameters of cutter determined, control the speed of drill bit, the quantity delivered of cooling fluid and peck drilling depth at every turn, stand-by;
(6) processing is opened: first open cooling fluid feed system, adopt milling cutter that the ends cutting of micropore to be processed for part is become plane again, and start employing peck formula boring method carry out boring process, when drill bit is machined to the degree of depth residue 1.2mm of micro hole, the rotating speed of drill bit is reduced to 60%, drill through micro hole again, the small hole processing of part can be completed.
Described pecks drilling depth at every turn, after pecking drilling depth at every turn and completing, is just exited by drill bit apart from aperture end face 2mm place, leaves standstill 1min.
Embodiment 3
A kind of employing pecks formula speed change Drilling operation part small hole method, comprises the following steps:
(1) part is installed: be positioned on workbench by part to be processed, and adopt centering workpiece centering part, and be arranged on fixture by part, stand-by;
(2) clamping cutter: the end face of part aperture to be processed is curved surface, installation drill bit and milling cutter are on fixture; Centering drill bit, and control drill bit beat size≤0.01mm time, the record length dimension of drill bit and the diameter dimension of drill bit, then centering milling cutter, and control milling cutter beat size≤0.02mm time, the length dimension of record milling cutter and diameter dimension, stand-by;
(3) parameters input: by drill bit and milling cutter on lathe, and input step 2 in the controls) after the respective length dimension of the drill bit that records and milling cutter and diameter dimension, stand-by;
(4) hole depth is determined: determine and the degree of depth of the micro hole of record paper processing parts;
(5) machined parameters is determined: material and step 2 according to part to be processed) dimensional parameters of cutter determined, control the speed of drill bit, the quantity delivered of cooling fluid and peck drilling depth at every turn, stand-by;
(6) processing is opened: first open cooling fluid feed system, adopt milling cutter that the ends cutting of micropore to be processed for part is become plane again, and start employing peck formula boring method carry out boring process, when drill bit is machined to the degree of depth residue 1mm of micro hole, the rotating speed of drill bit is reduced to 50%, drill through micro hole again, the small hole processing of part can be completed.
Described pecks drilling depth at every turn, after pecking drilling depth at every turn and completing, is just exited by drill bit apart from aperture end face 2mm place, leaves standstill 0.8min.
Embodiment 4
A kind of employing pecks formula speed change Drilling operation part small hole method, comprises the following steps:
(1) part is installed: be positioned on workbench by part to be processed, and adopt centering workpiece centering part, and be arranged on fixture by part, stand-by;
(2) clamping cutter: when the end face of part aperture to be processed is plane, installs drill bit, centering drill bit, and control drill bit beat size≤0.01mm time, the record length dimension of drill bit and the diameter dimension of drill bit, stand-by;
(3) parameters input: when the end face of part aperture to be processed is plane, installs drill bit on lathe, and input step 2 in the controls) length dimension of drill bit that records and diameter dimension, stand-by;
(4) hole depth is determined: determine and the degree of depth of the micro hole of record paper processing parts;
(5) machined parameters is determined: material and step 2 according to part to be processed) dimensional parameters of cutter determined, control the speed of drill bit, the quantity delivered of cooling fluid and peck drilling depth at every turn, stand-by;
(6) processing is opened: first open cooling fluid feed system, and start to adopt peck formula boring method carry out hole process head to be drilled be machined to micro hole the degree of depth residue 0.9mm time, the rotating speed of drill bit is reduced to 45%, then drills through micro hole, the small hole processing of part can be completed.
Described pecks drilling depth at every turn, after pecking drilling depth at every turn and completing, is just exited by drill bit apart from aperture end face 2mm place, leaves standstill 0.6min.
It is important to point out at this; above embodiment is only limitted to be further elaborated technical scheme of the present invention and illustrate; it is not the further restriction to technical scheme of the present invention; the essential characteristics of the non-protruding that those skilled in the art make on this basis and the improvement of non-significant progress, all belong to protection category of the present invention.
Claims (3)
1. a formula speed change Drilling operation part small hole method is pecked in employing, it is characterized in that, comprises the following steps:
(1) part is installed: be positioned on workbench by part to be processed, and adopt centering workpiece centering part, and be arranged on fixture by part, stand-by;
(2) clamping cutter: according to the flatness of the end face of part aperture to be processed, installs drill bit or drill bit and milling cutter on fixture; If only install drill bit, then centering drill bit, and control drill bit beat size≤0.01mm time, the record length dimension of drill bit and the diameter dimension of drill bit; If install drill bit and milling cutter, then centering drill bit, and control drill bit beat size≤0.01mm time, the record length dimension of drill bit and the diameter dimension of drill bit, then centering milling cutter, and control milling cutter beat size≤0.02mm time, the length dimension of record milling cutter and diameter dimension, stand-by;
(3) parameters input: according to the flatness of the end face of part aperture to be processed, drill bit or drill bit and milling cutter are installed on lathe, and input step 2 in the controls) length dimension of drill bit that records and diameter dimension or after inputting the respective length dimension of drill bit and milling cutter and diameter dimension successively, stand-by;
(4) hole depth is determined: determine and the degree of depth of the micro hole of record paper processing parts;
(5) machined parameters is determined: material and step 2 according to part to be processed) dimensional parameters of cutter determined, control the speed of drill bit, the quantity delivered of cooling fluid and peck drilling depth at every turn, stand-by;
(6) processing is opened: first open cooling fluid feed system, and start employing peck formula boring method carry out boring process or first open cooling fluid feed system, adopt milling cutter that the ends cutting of micropore to be processed for part is become plane again, and start employing peck formula boring method carry out boring process, when drill bit is machined to the degree of depth residue 0.8-1.2mm of micro hole, the rotating speed of drill bit is reduced to 40-60%, then drills through micro hole, the small hole processing of part can be completed.
2. as claimed in claim 1 employing pecks formula speed change Drilling operation part small hole method, it is characterized in that, described drill bit or drill bit and milling cutter, if follow the surface plane of part to be processed, then drill bit is installed; If curved surface, be then installed as drill bit and milling cutter.
3. as claimed in claim 1 employing pecks formula speed change Drilling operation part small hole method, and it is characterized in that, described pecks drilling depth at every turn, after pecking drilling depth at every turn and completing, is just exited by drill bit apart from aperture end face 2mm place, leaves standstill 0.5-1min.
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| 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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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105772796A (en) * | 2016-03-31 | 2016-07-20 | 东莞市连威电子有限公司 | Micro-diameter through hole machining technology |
| CN109434381A (en) * | 2018-11-05 | 2019-03-08 | 哈尔滨汽轮机厂有限责任公司 | A kind of processing method in muffler hole |
| CN109794628A (en) * | 2019-03-21 | 2019-05-24 | 莆田市城厢区星华电子模具有限公司 | A kind of mold processing method of through holes and equipment |
| CN110303181A (en) * | 2019-06-24 | 2019-10-08 | 河南科技学院 | The compound drilling process of difficult-to-machine material |
| CN110497152A (en) * | 2019-08-29 | 2019-11-26 | 中国航发南方工业有限公司 | Casing deep hole processing method and its application |
| CN111531388A (en) * | 2020-06-19 | 2020-08-14 | 保定天威保变电气股份有限公司 | Method for processing insulation slot of transformer core pulling plate and special combined tool thereof |
| CN111545990A (en) * | 2019-02-11 | 2020-08-18 | 中国航发商用航空发动机有限责任公司 | Method for taking out broken interference stud in casing |
| CN112008101A (en) * | 2020-07-16 | 2020-12-01 | 上海航天精密机械研究所 | Drilling method for ultra-deep long hole |
| CN112917103A (en) * | 2021-02-02 | 2021-06-08 | 中国航发长春控制科技有限公司 | Method for processing titanium alloy deep groove or deep hole |
| CN114179231A (en) * | 2021-12-21 | 2022-03-15 | 深圳市容微精密电子有限公司 | Micropore processing method and application in preparing micropore ceramic substrate |
| CN114871697A (en) * | 2022-05-06 | 2022-08-09 | 中国第一汽车股份有限公司 | Machining method for deep-cavity special-shaped sensor hole of cast iron cylinder cover |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105772796A (en) * | 2016-03-31 | 2016-07-20 | 东莞市连威电子有限公司 | Micro-diameter through hole machining technology |
| CN109434381A (en) * | 2018-11-05 | 2019-03-08 | 哈尔滨汽轮机厂有限责任公司 | A kind of processing method in muffler hole |
| CN111545990A (en) * | 2019-02-11 | 2020-08-18 | 中国航发商用航空发动机有限责任公司 | Method for taking out broken interference stud in casing |
| CN111545990B (en) * | 2019-02-11 | 2021-06-22 | 中国航发商用航空发动机有限责任公司 | Method for taking out broken interference stud in casing |
| CN109794628A (en) * | 2019-03-21 | 2019-05-24 | 莆田市城厢区星华电子模具有限公司 | A kind of mold processing method of through holes and equipment |
| CN110303181A (en) * | 2019-06-24 | 2019-10-08 | 河南科技学院 | The compound drilling process of difficult-to-machine material |
| CN110497152A (en) * | 2019-08-29 | 2019-11-26 | 中国航发南方工业有限公司 | Casing deep hole processing method and its application |
| CN111531388A (en) * | 2020-06-19 | 2020-08-14 | 保定天威保变电气股份有限公司 | Method for processing insulation slot of transformer core pulling plate and special combined tool thereof |
| CN112008101A (en) * | 2020-07-16 | 2020-12-01 | 上海航天精密机械研究所 | Drilling method for ultra-deep long hole |
| CN112917103A (en) * | 2021-02-02 | 2021-06-08 | 中国航发长春控制科技有限公司 | Method for processing titanium alloy deep groove or deep hole |
| CN114179231A (en) * | 2021-12-21 | 2022-03-15 | 深圳市容微精密电子有限公司 | Micropore processing method and application in preparing micropore ceramic substrate |
| CN114871697A (en) * | 2022-05-06 | 2022-08-09 | 中国第一汽车股份有限公司 | Machining method for deep-cavity special-shaped sensor hole of cast iron cylinder cover |
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