CN102778861A - Machining method of coarse pitch threads - Google Patents
Machining method of coarse pitch threads Download PDFInfo
- Publication number
- CN102778861A CN102778861A CN2012102565394A CN201210256539A CN102778861A CN 102778861 A CN102778861 A CN 102778861A CN 2012102565394 A CN2012102565394 A CN 2012102565394A CN 201210256539 A CN201210256539 A CN 201210256539A CN 102778861 A CN102778861 A CN 102778861A
- Authority
- CN
- China
- Prior art keywords
- machining
- cutter
- numerical control
- thread
- model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000003754 machining Methods 0.000 title abstract description 16
- 238000013178 mathematical model Methods 0.000 claims abstract description 12
- 238000005520 cutting process Methods 0.000 claims abstract description 5
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 241000826860 Trapezium Species 0.000 claims description 9
- 238000004904 shortening Methods 0.000 abstract 1
- 230000002950 deficient Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Numerical Control (AREA)
Abstract
The invention relates to a machining method of threads, in particular to the machining method of coarse pitch threads. The machining method comprises the following steps of building a right-angle trapezoidal thread finish machining outline and rough machining outline mathematical models; designing cutter paths according to the physical dimension of a designed non-standard cutter; building a numerical control macroprogram by applying the rough machining outline and cutter path mathematical models, selecting appropriate cutting parameters according to tool nose fillet radius R0.8 and combining with actual machining equipment and building a numerical control macroprogram by applying thread right-angle side finish machining outline and cutter path mathematical models, mathematical models right-angle sides by repeatedly feeding, and adopting sample plate and feeler gauge detection until required accuracy is achieved; and adjusting numerical control macroprogram contents, using the sample plate and feeler gauge to detect in a matched mode and completing machining of right-angle trapezoidal thread slope side according to machining results. The machining method is unique in process method, capable of effectively guaranteeing thread accuracy of forms and positions and surface smoothness, improving processing efficiency and shortening machining period.
Description
Technical field
The present invention relates to a kind of processing technology of screw thread, especially relate to a kind of job operation of steep-pitch thread.
Background technology
Along with the functional requirement of big machinery drive mechanism improves constantly, also have higher requirement for the shape and the positional precision of driving parts.Large-scale trapezoidal particularly right-angled trapezium is exactly wherein one of typical case's representative.Conventional threads processing adopts screw die, screw tap, formed turning tool can't meet the needs of production.Traditional processing method thread contour precision cannot say for sure to demonstrate,prove, working (machining) efficiency is low, and the process-cycle is long, is prone to produce the defective of taking article process tool is relatively relied on.
Summary of the invention
The objective of the invention is to overcome the defective of prior art, provide a kind of process unique, can effectively guarantee the screw thread accuracy of form and position and surface smoothness, raising working (machining) efficiency, shorten the job operation of a kind of steep-pitch thread of process-cycle.
The present invention realizes in the following manner:
A kind of job operation of steep-pitch thread is characterized in that: it comprises the steps:
A. make up right-angled trapezium screw thread finishing profile, roughing profile mathematical modeling;
B. the nonstandard cutter physical dimension according to design designs cutter path;
C. roughing profile and the cutter path mathematical model of using above-mentioned steps make up the numerical control macroprogram;
D. combine actual process equipment to choose suitable cutting parameter n=10r/min, p=75mm/r, f=n*p=750mm/min according to blade radius R0.8; Vc=π * d*n/ (1000*60)=90m/min uses screw thread right-angle side finishing profile and cutter rail mathematical model and makes up the numerical control macroprogram, the processing of feed several times right-angle side; Adopt model and clearance gauge to detect; Until the precision that meets the demands: degree of tilt ∠=45 ° ± 0 ° 3 ', P=75 ± 0.025
=25.4:0.013, surface smoothness=N8;
E. according to the processing result in last step, adjustment numerical control macroprogram content, use model and clearance gauge cooperate detection, accomplish the processing of right-angled trapezium screw thread hypotenuse;
≤D ≤2859, arrange in the space according to the cutter path of model that said step a constructed and cutter parameters step b design by the helix of pitch P=75 with particular geometric size 2770 on an inside and outside circle cylinder;
In thick finishing, adopt the circumference indexing to adjust the helix locus.
The present invention has following effect:
1) process is unique: it comprises the steps: to make up right-angled trapezium screw thread finishing profile, roughing profile mathematical modeling method provided by the invention; Nonstandard cutter physical dimension design cutter path according to design; Roughing profile and the cutter path mathematical model of using above-mentioned steps make up the numerical control macroprogram; Choose suitable cutting parameter n=10r/min, p=75mm/r, f=n*p=750mm/min according to blade radius R0.8; Vc=π * d*n/ (1000*60)=90m/min uses screw thread right-angle side finishing profile and cutter rail mathematical model and makes up the numerical control macroprogram, the processing of feed several times right-angle side; Adopt model and clearance gauge to detect; Until the precision that meets the demands: degree of tilt ∠=45 ° ± 0 ° 3 ', P=75 ± 0.025
=25.4:0.013, surface smoothness=N8; According to the processing result in last step, adjustment numerical control macroprogram content, use model and clearance gauge cooperate detection, accomplish the processing of right-angled trapezium screw thread hypotenuse.
2) overcoming in the past the screw thread accuracy of form and position cannot say for sure can effectively guarantee the screw thread accuracy of form and position by card.
3) avoid dependence, adopt this job operation that the existing equipment accuracy requirement is reduced the special screw thread process equipment.
4) under the not high situation of existing equipment precision, cooperate model and clearance gauge to be in and detect in real time in the process, avoided the generation of easy waste product.
5) can select multiple cutter for use, the requirement reduction to cutter physical dimension and precision has increased the dirigibility of process.
6) under the not high condition of equipment precision, can improve working (machining) efficiency to a great extent.
Embodiment
A kind of job operation of steep-pitch thread is characterized in that: it comprises the steps:
A. make up right-angled trapezium screw thread finishing profile, roughing profile mathematical modeling;
B. the nonstandard cutter physical dimension according to design designs cutter path;
C. roughing profile and the cutter path mathematical model of using above-mentioned steps make up the numerical control macroprogram;
D. combine actual process equipment to choose suitable cutting parameter n=10r/min, p=75mm/r, f=n*p=750mm/min according to blade radius R0.8; Vc=π * d*n/ (1000*60)=90m/min uses screw thread right-angle side finishing profile and cutter rail mathematical model and makes up the numerical control macroprogram, the processing of feed several times right-angle side; Adopt model and clearance gauge to detect; Until the precision that meets the demands: degree of tilt ∠=45 ° ± 0 ° 3 ', P=75 ± 0.025
=25.4:0.013, surface smoothness=N8;
E. according to the processing result in last step, adjustment numerical control macroprogram content, use model and clearance gauge cooperate detection, accomplish the processing of right-angled trapezium screw thread hypotenuse;
≤D ≤2859, arrange in the space according to the cutter path of model that said step a constructed and cutter parameters step b design by the helix of pitch P=75 with particular geometric size 2770 on an inside and outside circle cylinder;
In thick finishing, adopt the circumference indexing to adjust the helix locus.
Claims (3)
1. the job operation of a steep-pitch thread, it is characterized in that: it comprises the steps:
A. make up right-angled trapezium screw thread finishing profile, roughing profile mathematical modeling;
B. the nonstandard cutter physical dimension according to design designs cutter path;
C. roughing profile and the cutter path mathematical model of using above-mentioned steps make up the numerical control macroprogram;
D. combine actual process equipment to choose suitable cutting parameter n=10r/min, p=75mm/r, f=n*p=750mm/min according to blade radius R0.8; Vc=π * d*n/ (1000*60)=90m/min uses screw thread right-angle side finishing profile and cutter rail mathematical model and makes up the numerical control macroprogram, the processing of feed several times right-angle side; Adopt model and clearance gauge to detect; Until the precision that meets the demands: degree of tilt ∠=45 ° ± 0 ° 3 ', P=75 ± 0.025
=25.4:0.013, surface smoothness=N8;
E. according to the processing result in last step, adjustment numerical control macroprogram content, use model and clearance gauge cooperate detection, accomplish the processing of right-angled trapezium screw thread hypotenuse.
2. the job operation of a kind of steep-pitch thread as claimed in claim 1; It is characterized in that: ≤D ≤2859 with particular geometric size 2770 on an inside and outside circle cylinder; The helix of pitch P=75 is arranged in the space according to the cutter path of model that said step a constructed and cutter parameters step b design.
3. the job operation of a kind of steep-pitch thread as claimed in claim 1 is characterized in that: in thick finishing, adopt the circumference indexing to adjust the helix locus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102565394A CN102778861A (en) | 2012-07-24 | 2012-07-24 | Machining method of coarse pitch threads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102565394A CN102778861A (en) | 2012-07-24 | 2012-07-24 | Machining method of coarse pitch threads |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102778861A true CN102778861A (en) | 2012-11-14 |
Family
ID=47123795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102565394A Pending CN102778861A (en) | 2012-07-24 | 2012-07-24 | Machining method of coarse pitch threads |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102778861A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103092130A (en) * | 2013-02-01 | 2013-05-08 | 湖南江滨机器（集团）有限责任公司 | Piston outer circle modeling method |
| CN104460526A (en) * | 2014-11-17 | 2015-03-25 | 山东天瑞重工有限公司 | Process for machining corrugated threads through numerical control macroprogram |
| CN104588790A (en) * | 2014-12-03 | 2015-05-06 | 湖南南方宇航工业有限公司 | Machining method for saw-tooth thread |
| CN105479270A (en) * | 2016-02-17 | 2016-04-13 | 哈尔滨理工大学 | Experimental method for testing cutting property of tools for turning large-pitch thread |
| CN105537695A (en) * | 2016-03-17 | 2016-05-04 | 哈尔滨理工大学 | Coarse-pitch external thread layered turning process |
| CN105759723A (en) * | 2016-02-25 | 2016-07-13 | 中钢集团西安重机有限公司 | Numerical control programming method of machining thread with abnormal shape on numerically controlled lathe |
| CN106553019A (en) * | 2015-09-26 | 2017-04-05 | 南通理工学院 | Processing technology for processing special-shaped inner trapezoidal threads |
| CN107309504A (en) * | 2017-05-16 | 2017-11-03 | 歌尔股份有限公司 | Female thread machining method and Product processing mould |
| CN112404612A (en) * | 2020-11-27 | 2021-02-26 | 衡阳鸿宇机械制造有限公司 | Technology for turning large-pitch threads by matching numerical control cutter with macro program |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5272622A (en) * | 1990-11-29 | 1993-12-21 | Okuma Corporation | Numerical control information generating apparatus |
| JP2003170333A (en) * | 2001-12-05 | 2003-06-17 | Ooita Ken | Method of making tool feed path |
| CN101266476A (en) * | 2007-11-16 | 2008-09-17 | 上海电气电站设备有限公司 | Giant non-standard trapezoidal thread processing method |
-
2012
- 2012-07-24 CN CN2012102565394A patent/CN102778861A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5272622A (en) * | 1990-11-29 | 1993-12-21 | Okuma Corporation | Numerical control information generating apparatus |
| JP2003170333A (en) * | 2001-12-05 | 2003-06-17 | Ooita Ken | Method of making tool feed path |
| CN101266476A (en) * | 2007-11-16 | 2008-09-17 | 上海电气电站设备有限公司 | Giant non-standard trapezoidal thread processing method |
Non-Patent Citations (1)
| Title |
|---|
| 敖军平等: "浅谈宏程序加工梯形螺纹的两种方法", 《科技广场》 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103092130A (en) * | 2013-02-01 | 2013-05-08 | 湖南江滨机器（集团）有限责任公司 | Piston outer circle modeling method |
| CN104460526A (en) * | 2014-11-17 | 2015-03-25 | 山东天瑞重工有限公司 | Process for machining corrugated threads through numerical control macroprogram |
| CN104460526B (en) * | 2014-11-17 | 2015-09-16 | 山东天瑞重工有限公司 | A kind of method utilizing numerical control macroprogram to process corrugated thread |
| CN104588790A (en) * | 2014-12-03 | 2015-05-06 | 湖南南方宇航工业有限公司 | Machining method for saw-tooth thread |
| CN106553019A (en) * | 2015-09-26 | 2017-04-05 | 南通理工学院 | Processing technology for processing special-shaped inner trapezoidal threads |
| CN105479270A (en) * | 2016-02-17 | 2016-04-13 | 哈尔滨理工大学 | Experimental method for testing cutting property of tools for turning large-pitch thread |
| CN105479270B (en) * | 2016-02-17 | 2017-06-30 | 哈尔滨理工大学 | A kind of experimental technique for testing turning steep-pitch thread Tool in Cutting performance |
| CN105759723A (en) * | 2016-02-25 | 2016-07-13 | 中钢集团西安重机有限公司 | Numerical control programming method of machining thread with abnormal shape on numerically controlled lathe |
| CN105537695A (en) * | 2016-03-17 | 2016-05-04 | 哈尔滨理工大学 | Coarse-pitch external thread layered turning process |
| CN107309504A (en) * | 2017-05-16 | 2017-11-03 | 歌尔股份有限公司 | Female thread machining method and Product processing mould |
| CN107309504B (en) * | 2017-05-16 | 2019-03-08 | 歌尔股份有限公司 | Female thread machining method and product processing mold |
| CN112404612A (en) * | 2020-11-27 | 2021-02-26 | 衡阳鸿宇机械制造有限公司 | Technology for turning large-pitch threads by matching numerical control cutter with macro program |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102778861A (en) | Machining method of coarse pitch threads | |
| CN105537695B (en) | Layered Turning Technology of Large Pitch External Thread | |
| CN103586652A (en) | Process for machining male and female dies | |
| CN106407622B (en) | A kind of steep-pitch thread turning cutting tool design method | |
| CN104625098A (en) | Small-diameter double-line inner trapezoidal thread machining method | |
| CN201684931U (en) | A combined trapezoidal internal thread turning tool | |
| CN104646973A (en) | Processing method of multi-thread worm | |
| CN103394988A (en) | Method for planning cutter feeding path and cutter retreating path in multi-axis linkage abrasive belt grinding machining | |
| CN105478925A (en) | Improved technology for machining thread ring gages | |
| CN107914023A (en) | The processing method of minor diameter two-wire inner trapezoidal thread | |
| CN102303219A (en) | Machining method for worm tooth profile of cutter shaft of large gear shaping machine | |
| CN104607743A (en) | Electric-spark drilling method | |
| CN103111820B (en) | Machining technology of tooth profile of milling cutter with wave-shaped cutter edge | |
| CN201669626U (en) | Forming grinding wheel and forming diamond drill for thread form of thread roller dome | |
| CN106363250A (en) | Turning method of two-thread worm | |
| CN104942378B (en) | Low module blind hole inner spline process tool device and processing method | |
| CN104551016A (en) | End surface grooving device | |
| CN104384875A (en) | Large-modulus rack machining method | |
| CN203917980U (en) | Thick smart integrated combined type turning cutting tool | |
| CN104029085B (en) | Profile modeling control system | |
| CN204036166U (en) | A kind of numerical control screw-tap threaded grinding machine | |
| CN103769798B (en) | A kind of main inspection drill jig method of manufacturing technology | |
| CN102501042A (en) | Method for machining bottom R of reverse taper end milling cutter | |
| CN102198522A (en) | Double-edge adjustable cutting tool for cutting and grooving | |
| CN113414453A (en) | Gear machining method and cutter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121114 |