CN102489739B - Method for processing multi-axis hole system of differential shell - Google Patents
Method for processing multi-axis hole system of differential shell Download PDFInfo
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- CN102489739B CN102489739B CN 201110450508 CN201110450508A CN102489739B CN 102489739 B CN102489739 B CN 102489739B CN 201110450508 CN201110450508 CN 201110450508 CN 201110450508 A CN201110450508 A CN 201110450508A CN 102489739 B CN102489739 B CN 102489739B
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Abstract
The invention discloses a method for processing a multi-axis hole system of a differential shell. The method comprises the following steps of: a, firmly pressing a positioning column on a worktable of a vertical machining center, and aligning the centre of an outer circle of a positioning mandrel; b, processing holes in a differential cover; c, processing a differential shell body; and d, assembling the differential shell. Four holes in the differential cover and the differential shell are processed respectively, and a label corresponding assembly mode is adopted, so the assembly requirement of string holes on high coaxiality is also ensured while the problem that the string holes are difficult to be positively and laterally parallel to a central reference hole is solved; and practice proves that positive and lateral parallelisms of the string holes of the differential shell obtained by the method to the central reference hole are less than or equal to 0.03mm, so the machining accuracy is greatly improved.
Description
Technical field
The present invention relates to the Work piece processing method of mechanical field, particularly a kind of processing method of multi-axis hole system of differential shell.
Background technology
As shown in Figure 1, differential shell is combined by a differential lid 1 of cast iron and the differential shell body 2 of steel material, and 4 string holes are along the circumferential direction arranged.Former processing method for the string hole is: after differential lid 1 and differential shell body 2 combine take the central standard hole as benchmark, locate with the central standard hole, process 4 ￠ 25H7 string holes uniform take centre bore as benchmark, the string pitch-row is long from 142 mm, and this processing method can well guarantee the axiality of 4 string apertures.Because the hole is little, the string pitch-row is from long, and after processing, string hole axiality can reach drawing requirement, but string hole and datum hole just, side direction is parallel overproof larger, generally at 0.1～0.16mm, can not satisfy and design and matching requirements.
For above-mentioned deficiency, a kind of new processing method need to be provided, can solve ￠ 25H7 string hole to the center datum hole just, when the parallel difficulty of side direction, the same string hole self that guarantees is to the assembling demand of high-axiality.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of processing method of multi-axis hole system of differential shell, can solve on the differential shell string hole to the center datum hole just, when the parallel difficulty of side direction, the same string hole self that guarantees is to the assembling demand of high-axiality.
The objective of the invention is to be achieved through the following technical solutions: a kind of processing method of multi-axis hole system of differential shell may further comprise the steps:
A, first locating dowel is compressed at the vertical machining centre workbench, described locating dowel comprises positioning core axle and the support ring that arranges along the positioning core axle circumferencial direction, and annular slot to make way is set between positioning core axle and the support ring; Then the cylindrical center of centering positioning core axle;
B, the differential processing that covers the hole: fit on the locating dowel differential mounting cover and compression, set machine tool program and make its successively extremely pre-provisioning request of machining hole I, hole II, hole III and hole IV, and processing sequence is carried out label, then take off differential lid;
C, the processing of differential shell body: keep locating dowel and machine tool program constant, differential shell body is installed on the locating dowel, the location also compresses, start machine tool program and make its successively extremely pre-provisioning request of machining hole V, hole VI, hole VII and hole VIII, and processing sequence carried out label, then take off differential shell body;
D, assembling differential shell: with differential lid and differential shell body take center separately as datum hole, load onto mandrel, according to the hole I hole V, hole II are consisted of string hole to hole VII, hole IV to the mode of carrying out of hole VIII to hole VI, hole III, correction gets final product two Assembly of the parts well after coaxial.
Further, on the support ring of described locating dowel chip removal mouth is set also;
Further, the positioning core axle center of described locating dowel arranges through hole vertically.
Beneficial effect of the present invention: the processing method of a kind of multi-axis hole system of differential shell of the present invention, compare existing processing method, owing to adopt on differential lid and the differential shell four holes to process respectively and adopt the mode of the corresponding assembling of label, can solve the string hole to the center datum hole just, when the parallel difficulty of side direction, the same string hole self that guarantees is to the assembling demand of high-axiality, facts have proved, adopt the differential shell of this processing method gained respectively go here and there the hole to the center datum hole just, side direction is parallel less than or equal to 0.03mm, machining accuracy improves greatly.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples:
Fig. 1 is the structural representation of differential shell;
Fig. 2 is the structural representation of locating dowel of the present invention;
The assembling schematic diagram of differential lid and locating dowel when Fig. 3 is processing;
The assembling schematic diagram of differential shell body and locating dowel when Fig. 4 is processing.
The specific embodiment
Fig. 1 is the structural representation of differential shell; Fig. 2 is the structural representation of locating dowel of the present invention; The assembling schematic diagram of differential lid and locating dowel when Fig. 3 is processing; The assembling schematic diagram of differential shell body and locating dowel when Fig. 4 is processing.As shown in the figure: the processing method of a kind of multi-axis hole system of differential shell of present embodiment may further comprise the steps:
A, first locating dowel is compressed at the vertical machining centre workbench, described locating dowel comprises positioning core axle 3 and the support ring 4 that arranges along the positioning core axle circumferencial direction, and annular slot to make way 5 is set between positioning core axle and the support ring; Then the cylindrical center of centering positioning core axle;
B, the differential processing that covers the hole: be assemblied on the locating dowel differential lid 1 and compression, set machine tool program and make its successively extremely pre-provisioning request of machining hole I, hole II, hole III and hole IV, and processing sequence is carried out label, then take off differential lid;
C, the processing of differential shell body: keep locating dowel and machine tool program constant, differential shell body 2 is installed on the locating dowel, the location also compresses, start machine tool program and make its successively extremely pre-provisioning request of machining hole V, hole VI, hole VII and hole VIII, and processing sequence carried out label, then take off differential shell body;
D, assembling differential shell: with differential lid and differential shell body take center separately as datum hole, load onto mandrel, according to the hole I hole V, hole II are consisted of string hole to hole VII, hole IV to the mode of carrying out of hole VIII to hole VI, hole III, correction gets final product two Assembly of the parts well after coaxial.
Compare existing processing method, owing to adopt on differential lid and the differential shell four holes to process respectively and adopt the mode of the corresponding assembling of label, can solve the string hole to the center datum hole just, when the parallel difficulty of side direction, the same string hole self that guarantees is to the assembling demand of high-axiality, facts have proved, adopt the differential shell of this processing method gained respectively go here and there the hole to the center datum hole just, the parallel only 0.03mm of side direction, machining accuracy improves greatly.
As the further improvement to above-described embodiment, chip removal mouth 41 is set also on the support ring of described locating dowel.The timely discharge of the convenient processing of scavenge port iron filings etc. is set, avoid iron filings to pile up after the locating dowel shift in position that causes of cleaning repeatedly, affect machining accuracy, the while affects working (machining) efficiency greatly.
As the further improvement to above-described embodiment, the positioning core axle center of described locating dowel arranges through hole 31 vertically.Through hole is set can reduces deadweight, reduce labor strength, the while is economical with materials also, reduces production costs.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (3)
1. the processing method of a multi-axis hole system of differential shell is characterized in that: may further comprise the steps:
A, first locating dowel is compressed at the vertical machining centre workbench, described locating dowel comprises positioning core axle (3) and the support ring (4) that arranges along the positioning core axle circumferencial direction, and annular slot to make way (5) is set between positioning core axle and the support ring; Then the cylindrical center of centering positioning core axle;
B, the differential processing that covers the hole: be assemblied on the locating dowel differential lid (1) and compression, set machine tool program and make its successively extremely pre-provisioning request of machining hole I, hole II, hole III and hole IV, and processing sequence is carried out label, then take off differential lid;
C, the processing of differential shell body: keep locating dowel and machine tool program constant, differential shell body (2) is installed on the locating dowel, the location also compresses, start machine tool program and make its successively extremely pre-provisioning request of machining hole V, hole VI, hole VII and hole VIII, and processing sequence carried out label, then take off differential shell body;
D, assembling differential shell: with differential lid and differential shell body take center separately as datum hole, load onto mandrel, according to the hole I hole V, hole II are consisted of string hole to hole VII, hole IV to the mode of carrying out of hole VIII to hole VI, hole III, correction gets final product two Assembly of the parts well after coaxial.
2. the processing method of multi-axis hole system of differential shell according to claim 1 is characterized in that: chip removal mouth (41) also is set on the support ring of described locating dowel.
3. the processing method of multi-axis hole system of differential shell according to claim 1 and 2, it is characterized in that: the positioning core axle center of described locating dowel arranges through hole (31) vertically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110450508 CN102489739B (en) | 2011-12-29 | 2011-12-29 | Method for processing multi-axis hole system of differential shell |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110450508 CN102489739B (en) | 2011-12-29 | 2011-12-29 | Method for processing multi-axis hole system of differential shell |
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| CN102489739A CN102489739A (en) | 2012-06-13 |
| CN102489739B true CN102489739B (en) | 2013-05-29 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950482A (en) * | 2012-11-12 | 2013-03-06 | 铜陵恒盛轨道装备有限责任公司 | Central positioning platform |
| CN105345571A (en) * | 2015-12-16 | 2016-02-24 | 苏州市皓东金属压延五金厂 | Axial fixed block |
| CN109773243B (en) * | 2019-02-27 | 2023-10-13 | 浙江联宜电机有限公司 | Auxiliary device for machining radial holes and axial holes of annular gear |
Citations (4)
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| SU1764857A1 (en) * | 1989-11-28 | 1992-09-30 | В.Н.Шапошников, А.М.Пархоменко и И.Й.Добринов | Jig |
| US6287057B1 (en) * | 1998-07-10 | 2001-09-11 | Gebr. Heller Maschinenfabrik Gmbh | Device for machining bores in a workpiece and a method for machining bores by employing such device |
| CN1872464A (en) * | 2005-06-03 | 2006-12-06 | 沪东重机股份有限公司 | Method for manufacturing coaxial bore for workpiece with coaxial bore series in ultra long size |
| CN101992309A (en) * | 2010-10-25 | 2011-03-30 | 鞠小平 | Machining method for cross-shaped shaft holes of differential mechanism semi-shells |
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2011
- 2011-12-29 CN CN 201110450508 patent/CN102489739B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1764857A1 (en) * | 1989-11-28 | 1992-09-30 | В.Н.Шапошников, А.М.Пархоменко и И.Й.Добринов | Jig |
| US6287057B1 (en) * | 1998-07-10 | 2001-09-11 | Gebr. Heller Maschinenfabrik Gmbh | Device for machining bores in a workpiece and a method for machining bores by employing such device |
| CN1872464A (en) * | 2005-06-03 | 2006-12-06 | 沪东重机股份有限公司 | Method for manufacturing coaxial bore for workpiece with coaxial bore series in ultra long size |
| CN101992309A (en) * | 2010-10-25 | 2011-03-30 | 鞠小平 | Machining method for cross-shaped shaft holes of differential mechanism semi-shells |
Non-Patent Citations (9)
| Title |
|---|
| 主轴箱高同轴度孔系的加工方法;王礼美等;《机械工艺师》;19990515(第5期);第20-22页 * |
| 廖学勇.长距离同轴孔的制作工艺.《机械工人(热加工)》.2003,(第12期),第11-12页. * |
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| 王礼美等.主轴箱高同轴度孔系的加工方法.《机械工艺师》.1999,(第5期),第20-22页. |
| 精镗时提高箱体孔同轴度精度的途径;薛东岭等;《制造技术与机床》;20050331(第3期);第85-86页 * |
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| 长距离同轴孔的加工;廖学勇;《现代制造工程》;20031231(第12期);第106页 * |
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