CN101569947A - Technology for machining burr-free screw thread - Google Patents
Technology for machining burr-free screw thread Download PDFInfo
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- CN101569947A CN101569947A CNA2009101155390A CN200910115539A CN101569947A CN 101569947 A CN101569947 A CN 101569947A CN A2009101155390 A CNA2009101155390 A CN A2009101155390A CN 200910115539 A CN200910115539 A CN 200910115539A CN 101569947 A CN101569947 A CN 101569947A
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- screw thread
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- burr
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Abstract
The invention relates to a technology for machining a burr-free screw thread, belonging to the field of mechanical machining. The technology comprises the following steps: a) the tail of the screw thread is retracted by the digital control of the servo motor of a numerically controlled lathe; b) the allowance of the screw thread is evenly cut by the circulatory function of the turnery of a numerically controlled lathe; and c) the remaining screw thread at a front end is machined by the programming vehicle of a wide cutter. Adopting the method, the whole process for machining the screw thread is free of burrs, is no harmful to hands when the screw thread is screwed by the hands, and is no harmful to a sealing element which matches therewith, so as to extend the service life of a hydraulic cylinder.
Description
Technical field
The present invention relates to a kind of Thread Machining Process that does not have burr, belong to field of machining.
Background technology
Traditional Thread Machining Process is elder generation's chasing escape on finished surface, machining screw then, on milling machine, mill residual to the greatest extent screw thread or pincers worker at last and remove most burr, (reason is not have the automatic withdrawal function on engine lathe, not having escape, can not carry out screw thread processing) this tooling step is various suddenly, the bad control of precision, surface quality is poor, and burr is difficult to eliminate.
Summary of the invention
The object of the present invention is to provide a kind of on numerically controlled lathe, processing not have the burr Thread Machining Process, thereby it is various suddenly to solve tooling step, the bad control of precision, surface quality is poor, the defective that burr is difficult to eliminate.
For achieving the above object. the present invention takes following technical proposals: do not have the step of Thread Machining Process of burr as follows:
A), the Digital Control by the numerically controlled lathe servomotor, double thread carries out progressively withdrawing technology of run-out(of thread);
B), by the function of numerically controlled lathe turning circulation, double thread carries out chipping allowance uniformly;
C), adopt wide cutting knife (1) the programming car residual screw thread of front end to the greatest extent.
Progressively the withdrawing processing step is as follows for run-out(of thread):
A), during the numerically controlled lathe cutted thread, when arriving the screw thread rear end, presses by cutter the speed axial feed of tooth distance/revolution;
B), simultaneously cutter is along workpiece average rate withdrawing radially, this moment, workpiece screw thread rear end alveolus was diminishing equidistant slots.
Utilize the function of numerically controlled lathe turning circulation, this function operation program is as follows:
A), cutter when machining screw, cutter is gone into cutter at theoretical tooth form front end, cutting-in has only 0.3mm, presses the speed axial feed of tooth distance/revolution;
B), will cutting go into cutter point and press the speed axial feed of tooth distance/revolution once more toward theoretical tooth form rear end skew 0.2mm cutting-in intensification 0.3mm, this step that circulates is and so forth progressively approached size, up to workpiece surplus≤0.1mm;
C), feed cutter this moment made allowance not, screw thread is machined to dimensional requirement.
The residual screw thread technical step of front end is as follows to the greatest extent to adopt wide cutting knife (1) programming car:
A), cutting knife is by the residual screw thread of speed axial feed machining screw front end of pitch/revolution, only processes half pitch;
B), the cutting knife feed is simultaneously along workpiece average rate withdrawing radially.
The present invention compared with prior art has following advantage:
1, (undercut is not that engine lathe makes things convenient for screw thread processing withdrawing at finished surface machining screw undercut to the present invention includes numerically controlled lathe, numerically controlled lathe screw thread processing withdrawing is progressively digital control withdrawing), just do not produce screw thread rear end burr, so do not spend screw thread rear end burr;
2, screw thread front end burr is with wide cutting knife machining screw programme (car is to the greatest extent partly buckled screw thread).Adopt this method machining screw whole process not have burr, hold screw thread and twist and do not hinder hand, more do not hinder the seal that matches with it, thereby prolong the life-span of hydraulic cylinder.
Description of drawings
Fig. 1 is the structural representation of wide cutting knife;
Fig. 2 is the screw thread schematic diagram after processing.
Among the figure: 1, the screw thread 3, numerical control after wide cutting knife 2, the processing progressively withdrawing go screw thread discount 4, digital control progressively withdrawing to need not escape
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in detail.
As shown in Figure 1 and Figure 2, be a kind of Thread Machining Process that does not have burr, do not have the step of Thread Machining Process of burr as follows:
A), the Digital Control by the numerically controlled lathe servomotor, double thread carries out progressively withdrawing technology of run-out(of thread), shows among Fig. 1 that digital control progressively withdrawing need not escape (4);
B), by the function of numerically controlled lathe turning circulation, double thread carries out chipping allowance uniformly;
C), adopt wide cutting knife (1) the programming car residual screw thread of front end to the greatest extent, show among Fig. 1 numerical control progressively withdrawing remove screw thread discount (3).
Run-out(of thread) progressively the withdrawing processing step is as follows:
A), during the numerically controlled lathe cutted thread, when arriving the screw thread rear end, presses by cutter the speed axial feed of tooth distance/revolution;
B), simultaneously cutter is along workpiece average rate withdrawing radially, this moment, workpiece screw thread rear end alveolus was diminishing equidistant slots.
Utilize the function of numerically controlled lathe turning circulation, this function operation program is as follows:
A), cutter when machining screw, cutter is gone into cutter at theoretical tooth form front end, cutting-in has only 0.3mm, presses the speed axial feed of tooth distance/revolution;
B), will cutting go into cutter point and press the speed axial feed of tooth distance/revolution once more toward theoretical tooth form rear end skew 0.2mm cutting-in intensification 0.3mm, this step that circulates is and so forth progressively approached size, up to workpiece surplus≤0.1mm;
The residual screw thread technical step of front end is as follows to the greatest extent to adopt wide cutting knife (1) programming car:
A), cutting knife is by the residual screw thread of speed axial feed machining screw front end of pitch/revolution, only processes half pitch;
B), the cutting knife feed simultaneously along workpiece average rate withdrawing radially, has shown the screw thread (2) after the processing among Fig. 1.
Claims (4)
1, a kind of Thread Machining Process that does not have burr is characterized in that: do not have the step of Thread Machining Process of burr as follows:
A), the Digital Control by the numerically controlled lathe servomotor, double thread carries out progressively withdrawing technology of run-out(of thread);
B), by the function of numerically controlled lathe turning circulation, double thread carries out chipping allowance uniformly;
C), adopt wide cutting knife (1) the programming car residual screw thread of front end to the greatest extent.
2, the Thread Machining Process that does not have burr according to claim 1 is characterized in that: progressively the withdrawing processing step is as follows for the run-out(of thread) of above-mentioned steps in a):
A), during the numerically controlled lathe cutted thread, when arriving the screw thread rear end, presses by cutter the speed axial feed of tooth distance/revolution;
B), simultaneously cutter is along workpiece average rate withdrawing radially, this moment, workpiece screw thread rear end alveolus was diminishing equidistant slots.
3, the Thread Machining Process that does not have burr according to claim 1 is characterized in that: the function of utilizing numerically controlled lathe turning circulation above-mentioned steps b), and this function operation program is as follows:
A), cutter when machining screw, cutter is gone into cutter at theoretical tooth form front end, cutting-in has only 0.3mm, presses the speed axial feed of tooth distance/revolution;
B), will cutting go into cutter point and press the speed axial feed of tooth distance/revolution once more toward theoretical tooth form rear end skew 0.2mm cutting-in intensification 0.3mm, this step that circulates is and so forth progressively approached size, up to workpiece surplus≤0.1mm;
C), feed cutter this moment made allowance not, screw thread is machined to dimensional requirement.
4, the Thread Machining Process that does not have burr according to claim 1, its feature comprises: the residual screw thread technical step of front end is as follows to the greatest extent for the wide cutting knife of the employing above-mentioned steps c) (1) programming car:
A), cutting knife is by the residual screw thread of speed axial feed machining screw front end of pitch/revolution, only processes half pitch;
B), the cutting knife feed is simultaneously along workpiece average rate withdrawing radially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101155390A CN101569947A (en) | 2009-06-17 | 2009-06-17 | Technology for machining burr-free screw thread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101155390A CN101569947A (en) | 2009-06-17 | 2009-06-17 | Technology for machining burr-free screw thread |
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| Publication Number | Publication Date |
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| CN101569947A true CN101569947A (en) | 2009-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2009101155390A Pending CN101569947A (en) | 2009-06-17 | 2009-06-17 | Technology for machining burr-free screw thread |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303127A (en) * | 2011-08-24 | 2012-01-04 | 湖南南方宇航工业有限公司 | Method for removing incomplete thread by turning of numerically controlled lathe |
| CN102489790A (en) * | 2011-11-29 | 2012-06-13 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for avoiding pointy edges at head and tail of thread in thread processing |
| CN103231128A (en) * | 2013-04-23 | 2013-08-07 | 南车戚墅堰机车有限公司 | Method for machining multi-start trapezoidal threaded separate heads |
| CN103551679A (en) * | 2013-10-17 | 2014-02-05 | 南车株洲电机有限公司 | Non-standard thread machining method |
| CN103619522A (en) * | 2011-08-25 | 2014-03-05 | 理光越岭美有限公司 | Screw thread manufacturing method and screw thread |
| CN105458612A (en) * | 2015-09-25 | 2016-04-06 | 长治清华机械厂 | Online deburring machining method of component revolving groove structure |
| CN106001798A (en) * | 2016-07-06 | 2016-10-12 | 林州重机集团股份有限公司 | Method for removing residual threads of thread head and thread tail of inner thread |
| CN106424981A (en) * | 2016-10-27 | 2017-02-22 | 上海新力动力设备研究所 | Novel method for accurately positioning thread of engine casing |
| CN108637404A (en) * | 2018-04-26 | 2018-10-12 | 成都飞机工业（集团）有限责任公司 | A kind of method of the soft aluminium part screw thread of turnery processing |
| CN109531160A (en) * | 2018-12-10 | 2019-03-29 | 贵州航锐航空精密零部件制造有限公司 | A kind of non-threaded externally threaded processing technology of ending |
| CN111531234A (en) * | 2020-05-11 | 2020-08-14 | 成都航利航空科技有限责任公司 | Method for removing burrs of head and tail threads by numerical control lathe |
| CN112643150A (en) * | 2019-10-10 | 2021-04-13 | 安志飞 | Semi-automatic thread grinding device for lathe |
| CN112692290A (en) * | 2020-12-31 | 2021-04-23 | 横店集团东磁股份有限公司 | Novel machining method for hard alloy threads |
-
2009
- 2009-06-17 CN CNA2009101155390A patent/CN101569947A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303127A (en) * | 2011-08-24 | 2012-01-04 | 湖南南方宇航工业有限公司 | Method for removing incomplete thread by turning of numerically controlled lathe |
| CN102303127B (en) * | 2011-08-24 | 2013-11-06 | 湖南南方宇航工业有限公司 | Method for removing incomplete thread by turning of numerically controlled lathe |
| CN103619522A (en) * | 2011-08-25 | 2014-03-05 | 理光越岭美有限公司 | Screw thread manufacturing method and screw thread |
| CN103619522B (en) * | 2011-08-25 | 2015-08-26 | 理光越岭美有限公司 | Screw thread and manufacture method thereof |
| CN102489790A (en) * | 2011-11-29 | 2012-06-13 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for avoiding pointy edges at head and tail of thread in thread processing |
| CN103231128A (en) * | 2013-04-23 | 2013-08-07 | 南车戚墅堰机车有限公司 | Method for machining multi-start trapezoidal threaded separate heads |
| CN103231128B (en) * | 2013-04-23 | 2015-08-26 | 南车戚墅堰机车有限公司 | Processing multiple-trapeziform screw thread method separately |
| CN103551679A (en) * | 2013-10-17 | 2014-02-05 | 南车株洲电机有限公司 | Non-standard thread machining method |
| CN105458612A (en) * | 2015-09-25 | 2016-04-06 | 长治清华机械厂 | Online deburring machining method of component revolving groove structure |
| CN106001798A (en) * | 2016-07-06 | 2016-10-12 | 林州重机集团股份有限公司 | Method for removing residual threads of thread head and thread tail of inner thread |
| CN106424981A (en) * | 2016-10-27 | 2017-02-22 | 上海新力动力设备研究所 | Novel method for accurately positioning thread of engine casing |
| CN108637404A (en) * | 2018-04-26 | 2018-10-12 | 成都飞机工业（集团）有限责任公司 | A kind of method of the soft aluminium part screw thread of turnery processing |
| CN109531160A (en) * | 2018-12-10 | 2019-03-29 | 贵州航锐航空精密零部件制造有限公司 | A kind of non-threaded externally threaded processing technology of ending |
| CN112643150A (en) * | 2019-10-10 | 2021-04-13 | 安志飞 | Semi-automatic thread grinding device for lathe |
| CN111531234A (en) * | 2020-05-11 | 2020-08-14 | 成都航利航空科技有限责任公司 | Method for removing burrs of head and tail threads by numerical control lathe |
| CN111531234B (en) * | 2020-05-11 | 2022-11-04 | 成都航利航空科技有限责任公司 | Method for removing burrs of head and tail threads by numerical control lathe |
| CN112692290A (en) * | 2020-12-31 | 2021-04-23 | 横店集团东磁股份有限公司 | Novel machining method for hard alloy threads |
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Open date: 20091104 |