CN101362279A - Processing technique of split type speed differentiator shell - Google Patents
Processing technique of split type speed differentiator shell Download PDFInfo
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- CN101362279A CN101362279A CNA2008101070754A CN200810107075A CN101362279A CN 101362279 A CN101362279 A CN 101362279A CN A2008101070754 A CNA2008101070754 A CN A2008101070754A CN 200810107075 A CN200810107075 A CN 200810107075A CN 101362279 A CN101362279 A CN 101362279A
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Abstract
The invention relates to a processing technique of a split type differential case, which belongs to the technical field of mechanical working. The inner cavities of a left differential case 1 and a right differential case 2 are fine-processed according to the technical requirement, and the inner cavities comprise spherical surfaces, half axle gear holes, half axle via holes, joint surfaces of the differential cases, and assembling rabbets of the left differential case and the right differential case; a surplus length of 0.4-0.5 is reserved on each excircle, a surplus length of 0.3 is reserved on the corresponding end surfaces, the left differential case 1 and the right differential case 2 are assembled, ten holes are drilled and bored, then a numerical control lathe is utilized for finish turning to each excircle and end surface of the differential case, the roughness value Ra of the excircle surface of the assembling bearing is smaller than 1.6, the roughness value Ra of the excircle surface and the end surface of the rabbet on the flange surface is smaller than 3.2, and the jump of the flange surface relative to the two axle necks is smaller than 0.06. The processing technique has the advantages that the split type differential case is processed through turning rather than grinding, the production benefit is high, the working accuracy can achieve the design requirement, the quality is obviously improved than the separated processing, the noise of the rear axle is favorable to be reduced, therefore, the requirements of the users can be met.
Description
Technical field
The invention belongs to the mechanical processing technique field, relate to a kind of processing technology of split type differential carrier.
Background technology
It generally is to adopt general-purpose grinder or numerically control grinder to separate single grinding that present domestic split type differential carrier running in bearings respectively saves outer round surface fine finishining, shortcoming mainly is that productivity effect is low, assembling driven gear end face and seam are beated and are difficult to guarantee designing requirement, end face of flange and seam cylindrical are beated to two axle journals and are reached 0.04～0.06, the assembly rate height of doing over again, guarantee that split differential carrier flange face is beated and be lower than 0.06 for stable, satisfy the requirement of assembling driven gear, reduce the back axle gear noise, and can manufacture, only seek split type better faster differential carrier and respectively save cylindrical and end face processing technology.
Summary of the invention
The objective of the invention is to be to provide a kind of car for mill processing split-type differential mechanism, and can stablize assurance split differential carrier flange face and beat and be lower than 0.06 split type differential carrier surface processing technique.
The present invention is achieved in that a differential left shell 1 and differential right casing 2 are respectively by the good inner chamber of specification requirement fine finishining: comprise sphere, axle shaft gear hole, semiaxis via hole, differential carrier composition surface, reach the left and right shell assembling of differential mechanism seam; Stay 0.4～0.5 surplus and respectively save cylindrical, corresponding end face stays 0.3 surplus, again differential left shell 1 and differential right casing 2 are assembled, bore, boring ten holes, utilize numerically controlled lathe that differential carrier is respectively saved cylindrical then and end face carries out finish turning, the running in bearings excircle dimension is to Φ D, grade of tolerance IT6, assembling ring gear diameter Φ D1, grade of tolerance IT7, and guarantee length dimension L1 respectively, L2, L3, the coarse number of degrees Ra of the outer round surface of running in bearings value is less than 1.6, flange face seam cylindrical and end face surface roughness Ra value are less than 3.2, and flange face is beated less than 0.06 to two axle journals.
Reach in accuracy class on the words numerically controlled lathe of IT6 level, adorn two CNC turning tools on the lathe saddle respectively: one finish turning differential right casing axle journal cylindrical and left shell flange cylindrical and end face, another CNC turning tool finish turning differential left columella neck cylindrical and end face.
The differential carrier clamping is orientated as: the machine tool chief axis end cooperates with the differential carrier hole with positioning core axle, gap 0.02～0.05, and with differential left shell small end face axial location, or use the self-centering tensioning clamper, chamfering is located and held out against to one end of tailstock with 60 ° of chamferings in high accuracy rolling center and differential right casing aperture, eliminates radial clearance.
Work out, debug the turning differential carrier again and respectively save cylindrical numerically controlled lathe program, start numerically controlled lathe, with two CNC turning tools respectively the finish turning differential carrier respectively save cylindrical and end face of flange, to the coarse number of degrees Ra of the outer round surface of running in bearings value less than 1.6, flange face seam cylindrical and end face surface roughness Ra value are less than 3.2, and flange face is beated less than 0.06 to two axle journals.
The present invention realizes with car for mill processing split-type differential mechanism, the productivity effect height, and machining accuracy can reach: and the differential carrier flange face is beated less than 0.03 to two axle journals, significantly improves than the quality that adopts split processing, help reducing the back axle noise, satisfied customer requirements.
Description of drawings
Fig. 1, the split type differential design schematic diagram of the embodiment of the invention 1 all-cis class.
The dedicated numerical control lathe tool structural representation of Fig. 2, the embodiment of the invention 1.
The specific embodiment
Embodiment 1: to process the split type differential carrier of all-cis class is example, is the two axle journal Φ D that the processing differential carrier cooperates with bearing, the Φ D1 outer round surface and the end face that cooperate with driven gear; Running in bearings outer round surface roughness value requires less than Ra1.6; Assembling driven gear surface roughness value is less than Ra1.6; The assurance flange face is beated less than 0.06 to two axle journal cylindricals.
All-cis differential carrier clamping is orientated as: the machine tool chief axis end cooperates with the differential carrier hole with positioning core axle, gap 0.02～0.05, and with differential left shell small end face axial location; Or use the self-centering tensioning clamper, chamfering is located and held out against to an end of tailstock with 60 ° of chamferings in high accuracy rolling center and differential right casing aperture, eliminates radial clearance.
The work flow of differential case assembly is: finish turning differential left shell 1 is held greatly, and half finish turning differential left shell, 1 reverse side bores each hole, or tapping, left and right shell assembling; Finish turning differential right casing 2 each hole and spheres, half finish turning differential right casing, 2 reverse side bore each hole; The assembling of the left and right shell of differential carrier, differential case assembly bores, the boring cross bore, utilizes numerically controlled lathe that differential carrier is respectively saved cylindrical then and end face carries out finish turning, reaches the drawing requirement.
Specific requirement: earlier differential left differential left shell 1 and differential right casing 2 are pressed the good inner chamber of specification requirement fine finishining respectively: Spherical Surface S Φ d, tolerance 0.1, axle shaft gear hole d1, tolerance H7, semiaxis via hole d2, differential carrier composition surface, and the left and right shell assembling of differential mechanism seam assemble inside and outside seam mouth grade of tolerance IT7 level; Bore flange face 9; Stay 0.4～0.5 surplus and respectively save cylindrical, corresponding end face stays 0.3 surplus, differential left shell 1 and differential right casing 2 is assembled brill, boring ten holes again.
Reach on the numerically controlled lathe of IT6 level in accuracy class then, adorn two CNC turning tools on the lathe saddle respectively: one finish turning differential right casing axle journal cylindrical and left shell flange cylindrical and end face, another dedicated numerical control lathe tool finish turning differential left columella neck cylindrical and end face, the employing one of dedicated numerical control lathe tool is downcut with cutter head MWLNR2525M08 CNC turning tool 9 with the line cutting, again cutter head is changeed 90 ° and be welded on the knife bar.Utilize numerically controlled lathe that differential carrier is respectively saved cylindrical and end face carries out finish turning, running in bearings cylindrical 3,8 is to Φ D, grade of tolerance IT6, and assembling driven gear cylindrical 6 to Φ D1, grade of tolerance IT7, and guarantee length dimension L1, L2, L3 respectively.The coarse number of degrees Ra of the outer round surface of running in bearings value is less than 1.6, and flange face seam cylindrical and end face surface roughness Ra value are less than 3.2, and flange face is beated less than 0.06 to two axle journals.
According to the technology of having analyzed, establishment, debugging turning differential carrier respectively save cylindrical numerically controlled lathe program.This program is with one cutter finish turning right side columella neck cylindrical 8, end face 7, seam cylindrical 6 and flange face 5, and another dedicated numerical control lathe tool is processed left columella neck cylindrical 3 and end face 4.Start numerically controlled lathe, with two CNC turning tools respectively the finish turning differential mechanism cross and respectively save cylindrical, the coarse number of degrees Ra of running in bearings outer round surface value less than 1.6, flange face seam cylindrical and end face surface roughness Ra value are less than 3.2, owing to be that a clamping is processed each cylindrical and surface, so can stablize the assurance flange face two axle journals are beated less than 0.06, the general survey flange face is beated less than 0.03.
Claims (4)
1, a kind of processing technology of split type differential carrier is characterized in that: differential left shell (1) and differential right casing (2) respectively by the good inner chamber of specification requirement fine finishining: comprise sphere, axle shaft gear hole, semiaxis via hole, differential carrier composition surface, and the left and right shell assembling of differential mechanism seam; Stay 0.4～0.5 surplus and respectively save cylindrical, corresponding end face stays 0.3 surplus, again differential left shell (1) and differential right casing (2) are assembled, brill, boring ten holes, utilize numerically controlled lathe that differential carrier is respectively saved cylindrical then and end face carries out finish turning, the coarse number of degrees Ra of the outer round surface of running in bearings value is less than 1.6, and flange face seam cylindrical and end face surface roughness Ra value are less than 3.2, and flange face is beated less than 0.06 to two axle journals.
2, the processing technology of a kind of split type differential carrier according to claim 1, it is characterized in that: reach in accuracy class on the lathe saddle of the numerically controlled lathe more than the IT6 level and adorn two CNC turning tools respectively: one finish turning differential right casing axle journal cylindrical and left shell flange cylindrical and end face, another CNC turning tool finish turning differential left columella neck cylindrical and end face.
3, the processing technology of a kind of split type differential carrier according to claim 1 and 2, it is characterized in that: the differential carrier clamping is orientated as: the machine tool chief axis end cooperates with the differential carrier hole with positioning core axle, gap 0.02～0.05, and with differential left shell small end face axial location, or use the self-centering tensioning clamper, chamfering is located and held out against to one end of tailstock with 60 ° of chamferings in high accuracy rolling center and differential right casing aperture, eliminates radial clearance.
4, the processing technology of a kind of split type differential carrier according to claim 2, it is characterized in that: the CNC turning tool employing one of finish turning differential left columella neck cylindrical and end face is downcut with cutter head the MWLNR2525M08 CNC turning tool with the line cutting, again cutter head is changeed 90 ° and be welded on the knife bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101070754A CN101362279A (en) | 2008-09-05 | 2008-09-05 | Processing technique of split type speed differentiator shell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101070754A CN101362279A (en) | 2008-09-05 | 2008-09-05 | Processing technique of split type speed differentiator shell |
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| CN101362279A true CN101362279A (en) | 2009-02-11 |
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| CNA2008101070754A Pending CN101362279A (en) | 2008-09-05 | 2008-09-05 | Processing technique of split type speed differentiator shell |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101596666B (en) * | 2009-06-30 | 2010-12-08 | 中国重汽集团济南动力有限公司 | Processing technology for housing of cooler of vehicle engine exhaust gas recirculation system |
| CN102319988A (en) * | 2011-09-02 | 2012-01-18 | 十堰合骏实业有限公司 | Method for machining car differential shell |
| CN103273334A (en) * | 2013-05-28 | 2013-09-04 | 浙江欧迪恩传动科技股份有限公司 | Constant velocity universal joint bell housing scraping and striking tool |
| CN103551815A (en) * | 2013-11-15 | 2014-02-05 | 中国重汽集团济南动力有限公司 | Technological method for processing differential casing and processing device |
| CN103624680A (en) * | 2013-11-19 | 2014-03-12 | 西安航天动力机械厂 | Clamping device for generating grinding of minor hemisphere |
| CN104439934A (en) * | 2014-11-04 | 2015-03-25 | 西安航空动力股份有限公司 | Machining method for aero-engine inclusive casing |
| CN104972137A (en) * | 2015-04-16 | 2015-10-14 | 江西省分宜驱动桥有限公司 | Technology and device for improving machining precision of drive axle differential |
| CN105750834A (en) * | 2015-11-24 | 2016-07-13 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for machining journal made from ball bearing steel and nickel-base super alloy |
| CN106583753A (en) * | 2015-10-14 | 2017-04-26 | 金华大众齿轮有限公司 | Hard turning process for auxiliary gearbox drive gears |
| CN107116234A (en) * | 2014-09-05 | 2017-09-01 | 青岛华瑞汽车零部件股份有限公司 | A kind of processing method of differential casing bearings at both ends position axiality |
| CN107825067A (en) * | 2017-12-01 | 2018-03-23 | 无锡锡压压缩机有限公司 | A kind of manufacturing processing technic of helical-lobe compressor housing |
| CN108098273A (en) * | 2017-12-19 | 2018-06-01 | 盛瑞传动股份有限公司 | Transfer matic processes the processing technology of gear chamber |
| CN108296797A (en) * | 2017-12-29 | 2018-07-20 | 南京嘉玺数控科技有限公司 | A kind of boring and milling machine special equipment of processing new-energy automobile rear axle |
| CN109084003A (en) * | 2018-09-20 | 2018-12-25 | 洛阳华冠齿轮股份有限公司 | A kind of straight bevel gear differential assembly and its processing method |
| CN111250942A (en) * | 2020-03-12 | 2020-06-09 | 无锡压缩机股份有限公司 | Processing method of split crankcase of large six-row three-stage labyrinth compressor |
| CN111590274A (en) * | 2020-03-20 | 2020-08-28 | 莱芜汇金金属制品股份有限公司 | Machining method of differential shell |
| CN111774808A (en) * | 2020-07-07 | 2020-10-16 | 江苏金卡汽车部件有限公司 | Machining process for replacing grinding of flange by turning |
-
2008
- 2008-09-05 CN CNA2008101070754A patent/CN101362279A/en active Pending
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101596666B (en) * | 2009-06-30 | 2010-12-08 | 中国重汽集团济南动力有限公司 | Processing technology for housing of cooler of vehicle engine exhaust gas recirculation system |
| CN102319988A (en) * | 2011-09-02 | 2012-01-18 | 十堰合骏实业有限公司 | Method for machining car differential shell |
| CN103273334A (en) * | 2013-05-28 | 2013-09-04 | 浙江欧迪恩传动科技股份有限公司 | Constant velocity universal joint bell housing scraping and striking tool |
| CN103273334B (en) * | 2013-05-28 | 2015-07-29 | 浙江欧迪恩传动科技股份有限公司 | A kind of constant velocity cardan joint clutch can scrapes dress of doing manual work |
| CN103551815A (en) * | 2013-11-15 | 2014-02-05 | 中国重汽集团济南动力有限公司 | Technological method for processing differential casing and processing device |
| CN103624680A (en) * | 2013-11-19 | 2014-03-12 | 西安航天动力机械厂 | Clamping device for generating grinding of minor hemisphere |
| CN103624680B (en) * | 2013-11-19 | 2016-01-20 | 西安航天动力机械厂 | A kind of clamping device for not a half ball generating grinding |
| CN107116234A (en) * | 2014-09-05 | 2017-09-01 | 青岛华瑞汽车零部件股份有限公司 | A kind of processing method of differential casing bearings at both ends position axiality |
| CN104439934A (en) * | 2014-11-04 | 2015-03-25 | 西安航空动力股份有限公司 | Machining method for aero-engine inclusive casing |
| CN104972137A (en) * | 2015-04-16 | 2015-10-14 | 江西省分宜驱动桥有限公司 | Technology and device for improving machining precision of drive axle differential |
| CN106583753A (en) * | 2015-10-14 | 2017-04-26 | 金华大众齿轮有限公司 | Hard turning process for auxiliary gearbox drive gears |
| CN105750834A (en) * | 2015-11-24 | 2016-07-13 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for machining journal made from ball bearing steel and nickel-base super alloy |
| CN107825067A (en) * | 2017-12-01 | 2018-03-23 | 无锡锡压压缩机有限公司 | A kind of manufacturing processing technic of helical-lobe compressor housing |
| CN107825067B (en) * | 2017-12-01 | 2019-09-20 | 无锡锡压压缩机有限公司 | A kind of manufacturing processing technic of helical-lobe compressor shell |
| CN108098273A (en) * | 2017-12-19 | 2018-06-01 | 盛瑞传动股份有限公司 | Transfer matic processes the processing technology of gear chamber |
| CN108296797A (en) * | 2017-12-29 | 2018-07-20 | 南京嘉玺数控科技有限公司 | A kind of boring and milling machine special equipment of processing new-energy automobile rear axle |
| CN108296797B (en) * | 2017-12-29 | 2021-01-01 | 南京嘉玺数控科技有限公司 | Special equipment for boring and milling machine for processing rear axle of new energy automobile |
| CN109084003A (en) * | 2018-09-20 | 2018-12-25 | 洛阳华冠齿轮股份有限公司 | A kind of straight bevel gear differential assembly and its processing method |
| CN111250942A (en) * | 2020-03-12 | 2020-06-09 | 无锡压缩机股份有限公司 | Processing method of split crankcase of large six-row three-stage labyrinth compressor |
| CN111590274A (en) * | 2020-03-20 | 2020-08-28 | 莱芜汇金金属制品股份有限公司 | Machining method of differential shell |
| CN111590274B (en) * | 2020-03-20 | 2021-06-15 | 莱芜汇金金属制品股份有限公司 | Machining method of differential shell |
| CN111774808A (en) * | 2020-07-07 | 2020-10-16 | 江苏金卡汽车部件有限公司 | Machining process for replacing grinding of flange by turning |
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Open date: 20090211 |