CN104400363A - Machining method for high-precision eccentric spline shaft - Google Patents
Machining method for high-precision eccentric spline shaft Download PDFInfo
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- CN104400363A CN104400363A CN201410496549.4A CN201410496549A CN104400363A CN 104400363 A CN104400363 A CN 104400363A CN 201410496549 A CN201410496549 A CN 201410496549A CN 104400363 A CN104400363 A CN 104400363A
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- eccentric
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- machining
- axle
- shaft
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- 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
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
- F16C3/18—Eccentric-shafts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ocean & Marine Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention relates to the machining field and in particular relates to a machining method of the high-precision eccentric spline shaft. The machining method comprises the following steps: making position lines for central holes and eccentric holes in two ends of the shaft; forming the central holes in the two ends through machining according to the positioning lines; machining the shaft roughly and leaving a proper amount of machining allowance; detecting flaws and conducting tempering; conducting semi-finish machining for the maximal shaft diameter; boring two ends until length sizes required in a drawing are met; selecting the central lines and making new position lines of new central holes and eccentric holes and punching sample holes ; forming central holes and eccentric holes in the two ends by using a numerical control or digital display boring machine through machining; machining shaft shoulders; and mounting the shaft on a large gear hobbing machine and machining the shaft in a single-tool cutting mode. According to the invention, requirements for deflection angles in a method utilizing a tooth-shaped central line and an eccentric distance of a spline shaft are guaranteed. At the same time, a problem that a spline groove is difficult to align to a cutter is solved and the work piece concentricity and verticality are guaranteed in single-process clamping and machining. Influence on the manufacturing of the spline shaft caused by eccentric weight is also avoided completely and tempering reliability and operability are guaranteed.
Description
Technical field
The present invention relates to field of machining, be specifically related to the processing method of the eccentric splined shaft of high accuracy.
Background technology
The eccentric splined shaft of high accuracy is the important spare part in walking beam cooler system, and the center line of this spline teeth and the direction position degree of eccentric throw require very high, the position of re-graduation processing after side also has needs eccentric in addition simultaneously.Meeting these requires to add man-hour difficulty larger.
Intrinsic spline is being just tooth top to the direction of eccentric throw, and that is needing after eccentric peak turns over certain angle can cutter grooving under both sides, flute profile position, is difficult to calibration like this and aligns lower cutter.
Concentricity of workpiece requires more also higher, when laying particular stress on, if use commonsense method one-shot forming by adopting on horizontal machine tool in the past, will be difficult to ensure precision.Workpiece eccentric part weight is comparatively large, have a strong impact on calibration when spline makes with to the heart, therefore adopt traditional boring, crudy that milling machine milling spline is difficult to protect Wang's profile of tooth; And need more than one piece synchronous axial system in use due to workpiece, therefore higher to the coherence request of each single-piece tolerance.
Eccentric splined shaft technical requirement modifier treatment HB269 ~ 302, because shape is more complicated, technique select also relative complex for the surplus of modified surplus and deformation coefficient and each work step needs.
In order to overcome the above problems, once technological problems resolving ideas traditionally, devises special tooling, but after the processing of batch, although eccentric splined shaft overall acceptability rate is up to standard, but can produce defective work once in a while, and the making of production efficiency also more common eccentric shaft is low.
Summary of the invention
In order to solve the problem, the invention provides a kind of deflection angle requirement ensureing spline teeth center line and eccentric throw method, can solve the problem that spline is difficult to tool setting simultaneously, the concentricity of workpiece and perpendicularity require also to be ensured in clamped one time processing; Lay particular stress on and the making impact of spline is also avoided completely; The processing method of the eccentric splined shaft of high accuracy of modified reliable and operability can be ensure that.
The processing method of the eccentric splined shaft of high accuracy of the present invention, comprises the following steps:
The first step, line, platform is pressed the bulk shape size scribing inspection of part, after ensureing that blank quality and overall surplus are enough, maximum gauge line by drawing reserves enough eccentric position surpluses again, finally draws centre bore, the eccentric orfice position line at axle two ends by eccentric distance and the maximum shaft shoulder and maximum diameter of axle size;
Second step, select article carrying platform to be enough to boring machine that entirety sets level workpiece, processes the two ends centre bore of the maximum shaft shoulder and the maximum diameter of axle by scribing position, hole depth must not more than 20mm, so that subsequent handling excision;
3rd step, by the maximum shaft shoulder and the rough turn axle of maximum diameter of axle size, the monolateral allowance staying 20mm of length direction, diametric(al) is monolateral stays 6mm allowance, roughness value requirement
and more than, so that do ultrasonic examination:
4th step, detects a flaw modified, does integral ultrasonic flaw detection, according to HB269-302 modifier treatment after qualified to axle body;
5th step, on lathe, do benchmark by after center hole trimming time rough turn, the maximum diameter of axle processed by half finish turning, the monolateral allowance staying 3mm of diametric(al);
6th step, on boring machine, with the step surface at the maximum diameter of axle and eccentric position for origin reference location, the length dimension of two terminations to drawing requirement is put down in boring, centre bore and eccentric orfice together boring is gone simultaneously;
7th step, line, with the roughly high point of the maximum shaft shoulder for benchmark, center line and new centre bore, the eccentric orfice position line in drawing, then four position of intersecting point of cross centre line stamp sample dotting punch clearly in both ends of the surface;
8th step, in numerical control or digital display boring machine, with maximum diameter of axle centering, be once installed the centre bore and eccentric orfice that process two ends;
9th step, on lathe, processing needs each shaft shoulder of turning and reaches drawing requirement;
Tenth step, line, connects cross centre line with the sample dotting punch that two ends retain, draws on axle body along axle defence line;
11 step, employing is vertical to be contained on large gear-hobbing machine, flies the processing mode cut with hilted broadsword, add man-hour, with the line centering tool setting of corresponding eccentric high point, fly to cut profile of tooth, simultaneously, by unified for the keyway of all eccentric shafts position turning over a profile of tooth, namely just eccentric high some position is become to the center of groove;
12 step, line, with the line in cross searching hole for benchmark, the hole on stroke eccentric part end face and the Working position line in all the other holes;
13 step, on boring machine by the hole on each end face to drawing requirement;
14 step, flaw detection, after completion of processing, clamping, on lathe, checks each several part size and function, requires to do magnetic powder inspection after qualified according to J, and all symbol platform is leveled after requiring, tapping is coated with antirust oil, wrapping spline position, warehouse-in.
The present invention can ensure the deflection angle requirement of spline teeth center line and eccentric throw method, solves the problem that spline is difficult to tool setting simultaneously, and the concentricity of workpiece and perpendicularity require also to be ensured in clamped one time processing; Lay particular stress on and the making impact of spline is also avoided completely; Ensure that modified reliable and operability.
Detailed description of the invention
The processing method of the eccentric splined shaft of high accuracy of the present invention, comprises the following steps:
The first step, line, platform is pressed the bulk shape size scribing inspection of part, after ensureing that blank quality and overall surplus are enough, maximum gauge line by drawing reserves enough eccentric position surpluses again, finally draws centre bore, the eccentric orfice position line at axle two ends by eccentric distance and the maximum shaft shoulder and maximum diameter of axle size.
Second step, select article carrying platform to be enough to boring machine that entirety sets level workpiece, processes the two ends centre bore of the maximum shaft shoulder and the maximum diameter of axle by scribing position, hole depth must not more than 20mm, so that subsequent handling excision.
3rd step, by the maximum shaft shoulder and the rough turn axle of maximum diameter of axle size, the monolateral allowance staying 20mm of length direction, diametric(al) is monolateral stays 6mm allowance, roughness value requirement
and more than, so that do ultrasonic examination.
4th step, detects a flaw modified, does integral ultrasonic flaw detection, according to HB269-302 modifier treatment after qualified to axle body.
5th step, on lathe, do benchmark by after center hole trimming time rough turn, the maximum diameter of axle processed by half finish turning, the monolateral allowance staying 3mm of diametric(al).
6th step, on boring machine, with the step surface at the maximum diameter of axle and eccentric position for origin reference location, the length dimension of two terminations to drawing requirement is put down in boring, centre bore and eccentric orfice together boring is gone simultaneously.
7th step, line, with the roughly high point of the maximum shaft shoulder for benchmark, center line and new centre bore, the eccentric orfice position line in drawing, then four position of intersecting point of cross centre line stamp sample dotting punch clearly in both ends of the surface; This is in order to determining center, bias while, the position line of keyway and eccentric direction is bound, and is last keyway processing and does fabrication hole.
8th step, in numerical control or digital display boring machine, with maximum diameter of axle centering, be once installed the centre bore and eccentric orfice that process two ends.
9th step, on lathe, processing needs each shaft shoulder of turning and reaches drawing requirement; Center and eccentric part must clamped one time be shaping separately, i.e. clamping eccentric orfice, just processes all sizes of eccentric part; Clamping centre bore, just processes all sizes of core, like this, and the requirement of guarantee concentricity and perpendicularity.
Tenth step, line, connects cross centre line with the sample dotting punch that two ends retain, draws on axle body along axle defence line.
11 step, employing is vertical to be contained on large gear-hobbing machine, flies the processing mode cut with hilted broadsword, add man-hour, with the line centering tool setting of corresponding eccentric high point, fly to cut profile of tooth, simultaneously, by unified for the keyway of all eccentric shafts position turning over a profile of tooth, namely just eccentric high some position is become to the center of groove.
12 step, line, with the line in cross searching hole for benchmark, the hole on stroke eccentric part end face and the Working position line in all the other holes.
13 step, on boring machine by the hole on each end face to drawing requirement.
14 step, flaw detection, after completion of processing, clamping, on lathe, checks each several part size and function, requires to do magnetic powder inspection after qualified according to J, and all symbol platform is leveled after requiring, tapping is coated with antirust oil, wrapping spline position, warehouse-in.
Claims (1)
1. a processing method for the eccentric splined shaft of high accuracy, is characterized in that, comprise the following steps:
The first step, line, platform is pressed the bulk shape size scribing inspection of part, after ensureing that blank quality and overall surplus are enough, maximum gauge line by drawing reserves enough eccentric position surpluses again, finally draws centre bore, the eccentric orfice position line at axle two ends by eccentric distance and the maximum shaft shoulder and maximum diameter of axle size;
Second step, select article carrying platform to be enough to boring machine that entirety sets level workpiece, processes the two ends centre bore of the maximum shaft shoulder and the maximum diameter of axle by scribing position, hole depth must not more than 20mm, so that subsequent handling excision;
3rd step, by the maximum shaft shoulder and the rough turn axle of maximum diameter of axle size, the monolateral allowance staying 20mm of length direction, diametric(al) is monolateral stays 6mm allowance, roughness value requirement
and more than, so that do ultrasonic examination:
4th step, detects a flaw modified, does integral ultrasonic flaw detection, according to HB269-302 modifier treatment after qualified to axle body;
5th step, on lathe, do benchmark by after center hole trimming time rough turn, the maximum diameter of axle processed by half finish turning, the monolateral allowance staying 3mm of diametric(al);
6th step, on boring machine, with the step surface at the maximum diameter of axle and eccentric position for origin reference location, the length dimension of two terminations to drawing requirement is put down in boring, centre bore and eccentric orfice together boring is gone simultaneously;
7th step, line, with the roughly high point of the maximum shaft shoulder for benchmark, center line and new centre bore, the eccentric orfice position line in drawing, then four position of intersecting point of cross centre line stamp sample dotting punch clearly in both ends of the surface;
8th step, in numerical control or digital display boring machine, with maximum diameter of axle centering, be once installed the centre bore and eccentric orfice that process two ends;
9th step, on lathe, processing needs each shaft shoulder of turning and reaches drawing requirement;
Tenth step, line, connects cross centre line with the sample dotting punch that two ends retain, draws on axle body along axle defence line;
11 step, employing is vertical to be contained on large gear-hobbing machine, flies the processing mode processing of cutting with hilted broadsword, add man-hour, with the line centering tool setting of corresponding eccentric high point, fly to cut profile of tooth, simultaneously, by unified for the keyway of all eccentric shafts position turning over a profile of tooth, namely just eccentric high some position is become to the center of groove;
12 step, line, with the line in cross searching hole for benchmark, the hole on stroke eccentric part end face and the Working position line in all the other holes;
13 step, on boring machine by the hole on each end face to drawing requirement;
14 step, flaw detection, after completion of processing, clamping, on lathe, checks each several part size and function, requires to do magnetic powder inspection after qualified according to J, and all symbol platform is leveled after requiring, tapping is coated with antirust oil, wrapping spline position, warehouse-in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410496549.4A CN104400363A (en) | 2014-09-25 | 2014-09-25 | Machining method for high-precision eccentric spline shaft |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410496549.4A CN104400363A (en) | 2014-09-25 | 2014-09-25 | Machining method for high-precision eccentric spline shaft |
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| CN104400363A true CN104400363A (en) | 2015-03-11 |
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| CN201410496549.4A Pending CN104400363A (en) | 2014-09-25 | 2014-09-25 | Machining method for high-precision eccentric spline shaft |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104942549A (en) * | 2015-07-21 | 2015-09-30 | 巨轮股份有限公司 | Manufacture process of robot RV reducer spline eccentric shaft |
| CN105537889A (en) * | 2016-02-18 | 2016-05-04 | 山东金辰机械股份有限公司 | Synchronous machining method of left and right eccentric gears |
| CN105643316A (en) * | 2016-03-29 | 2016-06-08 | 优德精密工业（昆山）股份有限公司 | Jig and machining method for improving position precision of crank and spline |
| CN105921777A (en) * | 2016-06-28 | 2016-09-07 | 上海锅炉厂有限公司 | Eccentric hole machining method |
| CN107891256A (en) * | 2017-11-23 | 2018-04-10 | 江阴市永兴机械制造有限公司 | A kind of processing method of the eccentric splined shaft of high accuracy |
| CN113020923A (en) * | 2021-03-25 | 2021-06-25 | 哈尔滨电机厂有限责任公司 | Processing method for convex key on slender shaft of high-capacity high-rotating-speed generator motor |
-
2014
- 2014-09-25 CN CN201410496549.4A patent/CN104400363A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104942549A (en) * | 2015-07-21 | 2015-09-30 | 巨轮股份有限公司 | Manufacture process of robot RV reducer spline eccentric shaft |
| CN105537889A (en) * | 2016-02-18 | 2016-05-04 | 山东金辰机械股份有限公司 | Synchronous machining method of left and right eccentric gears |
| CN105643316A (en) * | 2016-03-29 | 2016-06-08 | 优德精密工业（昆山）股份有限公司 | Jig and machining method for improving position precision of crank and spline |
| CN105921777A (en) * | 2016-06-28 | 2016-09-07 | 上海锅炉厂有限公司 | Eccentric hole machining method |
| CN107891256A (en) * | 2017-11-23 | 2018-04-10 | 江阴市永兴机械制造有限公司 | A kind of processing method of the eccentric splined shaft of high accuracy |
| CN107891256B (en) * | 2017-11-23 | 2019-04-16 | 江阴市永兴机械制造有限公司 | A kind of processing method of high-precision bias splined shaft |
| CN113020923A (en) * | 2021-03-25 | 2021-06-25 | 哈尔滨电机厂有限责任公司 | Processing method for convex key on slender shaft of high-capacity high-rotating-speed generator motor |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150311 |
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| WD01 | Invention patent application deemed withdrawn after publication |