CN102423860B - Locating machining method of fixture for milling reverser holes on internal circulation ball nut - Google Patents
Locating machining method of fixture for milling reverser holes on internal circulation ball nut Download PDFInfo
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- CN102423860B CN102423860B CN 201110296750 CN201110296750A CN102423860B CN 102423860 B CN102423860 B CN 102423860B CN 201110296750 CN201110296750 CN 201110296750 CN 201110296750 A CN201110296750 A CN 201110296750A CN 102423860 B CN102423860 B CN 102423860B
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- threaded mandrel
- milling
- hole
- reverser
- ball nut
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Abstract
The invention relates to the locating machining field of mechanical drilling, and discloses a fixture for milling a reverser hole on an internal circulation ball nut and a locating machining method thereof. The fixture comprises a thread spindle, an open gasket and a hexagon nut, wherein, the end surface of the ball nut is screwed on the milling thread spindle and firmly sticks to the inside end surface of the milling thread spindle, and then the hexagon nut is screwed on the thread spindle for locking. In the locating machining method, by using the fixture, a reverser hole is machined on the internal circulation ball nut through a locating reference on the milling thread spindle. The fixture and the locating machining method thereof have the beneficial effects that the design is simple, and the drilling machining efficiency is greatly improved; by adopting the milling thread spindle to machine, the fixture is simple; and by adopting a numerical control machine tool to machine, the machining period is shortened.
Description
Technical field
The present invention relates to mechanical hole location manufacture field, more particularly, relate to a kind of positioning and processing method for interior circulation nut reverser hole.
Background technology
Location is the conventional means in machining and Assembly of the parts, and positioning precision is the basis that guarantees crudy and assembly quality, guarantees the setting accuracy on work design, is conducive to improve the overall precision level of engineering goods.Existing pinpoint measure more also very accurately, as computer numerical controlled location is exactly comparatively typical placement technology now, accomplish the zero tolerance of morpheme fully.But this technology is applicable to the enterprise that the streamline fine finishining of batch machining is produced, for metallurgical manufacturing enterprise, also have comparatively high-precision requirement, but be substantially simple standard component maintenance activity separately, usually adopt artificial manual location technology, its shortcoming is exactly the required precision that does not far reach numerical control positioning; Its advantage is not need to be equipped with numerically controlled processing equipment with expending huge fund.
The processing of ball nut hole in piece part is more typical, and GCr15 material itself also is difficult to processing, on this class material parts, wants drilling bore hole, and difficulty is very large.Have by reasons such as the precision in laser and ，Yin hole, these holes of spark machined, surface roughness, efficiency, be difficult to reach the designing requirement of part.
Traditional interior circulation ball nut reverser hole is processed on drilling machine with Special drilling jig.The complicated structure of drill jig, processing and assembling, dismounting are all very difficult, when ball nut in batches hour, tediously long drill jig process time, directly have influence on production cycle of product.And add man-hour on drilling machine with drill jig, and the human factor proportion is larger, and the levels of precision of drill jig itself and workman's qualification all have influence on product quality.This class hole, be still at present a great problem in machining at home, and a lot of companies need import or guarantee borehole accuracy and output with the drilling hole machine tool of ball-screw nut reverser special use, and the special purpose machine tool price is hundreds of thousands, at most nearly 1,000,000 at least.The fixture of some companies design use guarantees the precision of boring, and fixture processing is very high for operation requirements, and productivity effect is not high, and can cause unstable product quality.
Summary of the invention
1. the technical problem that will solve
The object of the invention is to overcome in prior art the reverser hole difficulty of processing on ball nut large, precision is difficult to guarantee, productivity effect is not high, and the problem of unstable product quality provides a kind of positioning and processing method for interior circulation ball nut reverser hole.
2. technical scheme
Purpose of the present invention is achieved through the following technical solutions:
Frock is used in milling of interior circulation ball nut reverser of the present invention hole, and it comprises mills with threaded mandrel, open washer and hex nut; While on interior circulation ball nut, processing the reverser hole, to mill with threaded mandrel fixedly clamping on milling machine, the interior circulation ball nut in reverser to be processed hole is screwed in to mill and use threaded mandrel, the subsides jail is milled and is used the threaded mandrel inner side end, milling with screwing in hex nut locking on threaded mandrel again, last according to milling by the positioning datum on threaded mandrel and location dimension, mill the reverser hole.
The positioning and processing method in interior circulation ball nut reverser of the present invention hole, it comprises the following steps:
A) get one-tenth to be processed and mill the optical axis by threaded mandrel, according to the dimensional requirement car of actual processing, mill out end face and thread surface;
B) determine the central point milled with coincide point adjacent crest on axle at center and center, reverser hole at the bottom of the threaded mandrel tooth, back gauge size L1 according to reverser hole on interior circulation ball nut to be processed, lead L2, the L0=L1+L2/2 that converts to obtain, L0 is the central point milled with coincide point adjacent crest on axle at center and center, reverser hole at the bottom of the threaded mandrel tooth; The back gauge size L1 in reverser hole is known dimensions, and reverser Kong center (being LI size assigned address) is corresponding to milling with center at the bottom of the threaded mandrel tooth.The problem that need to consider when the correct position of finding L1 on threaded mandrel is design, the center at the bottom of the threaded mandrel upper tooth is bad to be determined, therefore find the center of the crest that threaded mandrel is adjacent by conversion.Mill with at the bottom of the threaded mandrel upper tooth with reverser hole center superposition point, differ helical pitch L2/2, i.e. size L0=L1+L2/2 half with milling with crest adjacent on threaded mandrel.
C) will be through steps A) processing mill with threaded mandrel fixedly clamping on milling machine, according to B) size of L0 in step, milling by Digit Control Machine Tool the central point that finds described adjacent crest by threaded mandrel; Move axially workbench and milling with milling datum level on threaded mandrel, the datum hole that drills and reams, be that the central spot of center in order to guarantee datum hole and described adjacent crest is on the same profile milled with same Up Highway UHW on threaded mandrel like this; Wherein, the datum hole center is L3 with the distance of milling with the threaded mandrel inner side end;
D) interior circulation ball nut screw-in is milled and uses threaded mandrel, the subsides jail is milled and is used the threaded mandrel inner side end, then is milling with screwing in open washer, hex nut locking on threaded mandrel; Prevent that ball nut from play occurring in process.
E) at step D) basis on, with datum level and datum hole location, workbench moves axially the distance of size L, wherein L=L1+L3, mill the reverser hole.
3. beneficial effect
Than prior art, advantage of the present invention is:
(1) the present invention is by the origin reference location size of threaded mandrel, and machining accuracy is improved;
(2) processing method in reverser of the present invention hole, simplicity of design, Drilling operation efficiency increases substantially;
(3) adopt and mill with threaded mandrel processing, frock is simple, and adopts Digit Control Machine Tool processing, has shortened the process-cycle.
The accompanying drawing explanation
Fig. 1 is the structural representation milled by frock of the present invention;
Fig. 2 is the enlarged diagram by threaded mandrel that mills milled by frock of the present invention;
The left view that Fig. 3 is Fig. 2;
The amplification view that Fig. 4 is ball nut of the present invention.
The number in the figure explanation:
1-mills with threaded mandrel 2-open washer 3-hex nut 4-ball nut 5-back hole 6-datum hole.
The specific embodiment
Below in conjunction with Figure of description, the present invention is described in detail.
In conjunction with Fig. 1, frock is used in milling of interior circulation ball nut reverser of the present invention hole, and it comprises mills with threaded mandrel 1, open washer 2 and hex nut 3; While on interior circulation ball nut, processing reverser hole 5, to mill with threaded mandrel 1 fixedly clamping on milling machine, the interior circulation ball nut in reverser to be processed hole 54 is screwed in and mills by threaded mandrel 1, pasting jail mills with threaded mandrel 1 inner side end, milling with screwing in hex nut 3 lockings on threaded mandrel 1 again, last according to milling by positioning datum and location dimension on threaded mandrel 1, mill reverser hole 5.
In conjunction with Fig. 2 to Fig. 4, frock is used in milling of interior circulation ball nut reverser of the present invention hole, comprises the following steps:
A) get one-tenth to be processed and mill the optical axis by threaded mandrel 1, according to the dimensional requirement car of actual processing, mill out end face and thread surface;
B) determine the central point milled with coincide point adjacent crest on axle at center and 5 centers, reverser hole at the bottom of threaded mandrel 1 tooth, back gauge size L1 according to reverser hole on interior circulation ball nut 4 to be processed, lead L2, the L0=L1+L2/2 that converts to obtain, L0 is the central point milled with coincide point adjacent crest on axle at center and 5 centers, reverser hole at the bottom of threaded mandrel 1 tooth;
C) will be through steps A) processing mill with threaded mandrel 1 fixedly clamping on milling machine, according to B) size of L0 in step, milling by Digit Control Machine Tool the central point that finds described adjacent crest by threaded mandrel 1; Move axially workbench and milling with on threaded mandrel 1, milling datum level, the datum hole 6 that drills and reams, be that the central spot of center in order to guarantee datum hole 6 and described adjacent crest is on the same profile milled with same Up Highway UHW on threaded mandrel 1 like this; Wherein, datum hole 6 centers are L3 with the distance of milling with threaded mandrel 1 inner side end;
D) interior circulation ball nut 4 is screwed in and mills by threaded mandrel 1, paste jail and mill with threaded mandrel 1 inner side end, then milling with screwing in open washer 2, hex nut 3 lockings on threaded mandrel 1;
The correct position of finding the reverser hole on clamping ball nut, after processing first reverser hole, as benchmark, by circumferential adjustment dividing head with move axially workbench and can be processed other reverser hole.This tool structure is simple, and localization method is simple, and precision is high.
Below schematically the present invention and embodiment thereof are described, this description does not have restricted, and shown in accompanying drawing is also one of embodiments of the present invention, and actual structure is not limited to this.So, if those of ordinary skill in the art is enlightened by it, in the situation that do not break away from the invention aim, without the creationary frame mode similar to this technical scheme and the embodiment of designing, all should belong to protection scope of the present invention.
Claims (1)
1. the positioning and processing method in interior circulation ball nut reverser hole, is characterized in that, it comprises the following steps:
A) get one-tenth to be processed and mill the optical axis by threaded mandrel (1), according to the dimensional requirement car of actual processing, mill out end face and thread surface;
B) determine the central point milled with coincide point adjacent crest on axle at center and center, reverser hole (5) at the bottom of threaded mandrel (1) tooth, back gauge size L1 according to the upper reverser of interior circulation ball nut to be processed (4) hole, lead L2, the L0=L1+L2/2 that converts to obtain, L0 is the central point milled with coincide point adjacent crest on axle at center and center, reverser hole (5) at the bottom of threaded mandrel (1) tooth;
C) will be through steps A) processing mill with threaded mandrel (1) fixedly clamping on milling machine, according to B) size of L0 in step, milling by Digit Control Machine Tool the central point that finds described adjacent crest by threaded mandrel (1); Moving axially workbench is milling with on threaded mandrel (1), milling datum level, the datum hole (6) that drills and reams is that the central spot of center in order to guarantee datum hole (6) and described adjacent crest is on the same profile milled with the upper same Up Highway UHW of threaded mandrel (1) like this; Wherein, datum hole (6) center is L3 with the distance of milling with threaded mandrel (1) inner side end;
D) interior circulation ball nut (4) screw-in is milled and uses threaded mandrel (1), paste jail and mill with threaded mandrel (1) inner side end, then milling with above screw-in open washer (2), hex nut (3) locking of threaded mandrel (1);
E) at step D) basis on, with datum level and datum hole (6) location, workbench moves axially the distance of size L, wherein L=L1+L3, mill reverser hole (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110296750 CN102423860B (en) | 2011-09-30 | 2011-09-30 | Locating machining method of fixture for milling reverser holes on internal circulation ball nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110296750 CN102423860B (en) | 2011-09-30 | 2011-09-30 | Locating machining method of fixture for milling reverser holes on internal circulation ball nut |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102423860A CN102423860A (en) | 2012-04-25 |
| CN102423860B true CN102423860B (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110296750 Expired - Fee Related CN102423860B (en) | 2011-09-30 | 2011-09-30 | Locating machining method of fixture for milling reverser holes on internal circulation ball nut |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104259933A (en) * | 2014-09-05 | 2015-01-07 | 大连高金数控集团有限公司 | Ball nut phase measuring device and corresponding nut return device hole machining method |
| CN110539203B (en) * | 2019-07-30 | 2021-05-14 | 陕西汉江机床有限公司 | Radial tool setting device and method for turning spiral groove of ball nut |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1052427B1 (en) * | 1999-05-14 | 2004-07-14 | Goodrich Actuation Systems Ltd | Actuator |
| CN1563745A (en) * | 2004-04-16 | 2005-01-12 | 于宙 | Axial reverse ball leading screw assistant |
| CN200975457Y (en) * | 2006-12-01 | 2007-11-14 | 山东济宁博特精密丝杠有限公司 | High speed accurate ball guide-screw pair |
| CN201526654U (en) * | 2009-10-09 | 2010-07-14 | 陕西汉江机床有限公司 | Ball screw assembly |
| CN102011845A (en) * | 2010-12-29 | 2011-04-13 | 江苏瑞安特机械集团有限公司 | Large-load and high-speed ball screw pair |
-
2011
- 2011-09-30 CN CN 201110296750 patent/CN102423860B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1052427B1 (en) * | 1999-05-14 | 2004-07-14 | Goodrich Actuation Systems Ltd | Actuator |
| CN1563745A (en) * | 2004-04-16 | 2005-01-12 | 于宙 | Axial reverse ball leading screw assistant |
| CN200975457Y (en) * | 2006-12-01 | 2007-11-14 | 山东济宁博特精密丝杠有限公司 | High speed accurate ball guide-screw pair |
| CN201526654U (en) * | 2009-10-09 | 2010-07-14 | 陕西汉江机床有限公司 | Ball screw assembly |
| CN102011845A (en) * | 2010-12-29 | 2011-04-13 | 江苏瑞安特机械集团有限公司 | Large-load and high-speed ball screw pair |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102423860A (en) | 2012-04-25 |
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Effective date of registration: 20151224 Address after: Taicang City, Jiangsu province science and Technology Park 215400 Jianxiong Road No. 20 Patentee after: CHINA RUNHAI PRECISION TECHNOLOGY Co.,Ltd. Address before: 210039, No. 8, long Tibet Road, Yuhua Economic Development Zone, Nanjing, Jiangsu Patentee before: UNID NEFF NANJING TECHNOLOGY Co.,Ltd. |
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Granted publication date: 20131225 |
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