CN108145379A - A kind of preparation method of high-stability large torque differential casing - Google Patents
A kind of preparation method of high-stability large torque differential casing Download PDFInfo
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- CN108145379A CN108145379A CN201711260222.7A CN201711260222A CN108145379A CN 108145379 A CN108145379 A CN 108145379A CN 201711260222 A CN201711260222 A CN 201711260222A CN 108145379 A CN108145379 A CN 108145379A
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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
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- 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
- F16H—GEARING
- F16H48/00—Differential gearings
- F16H48/38—Constructional details
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- General Engineering & Computer Science (AREA)
- Heat Treatment Of Articles (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Preparation method more particularly to a kind of preparation method of high-stability large torque differential casing the present invention relates to a kind of differential casing.It carries out according to the following steps：Product structure → blank making → semi-finished product making → assembling → planet hole making → final inspection → purged and packed → storage.A kind of preparation method of high-stability large torque differential casing further promotes the quality of product, reduces enterprise's production cost.
Description
Technical field
Preparation method more particularly to a kind of high-stability large torque differential carrier the present invention relates to a kind of differential casing
The preparation method of body.
Background technology
Differential casing is auto parts machinery, and conventional preparation method can not meet the rigidity of product, deposit in use
In certain safe mass.
Chinese patent 201410041273.0 discloses a kind of processing unit (plant) of the differential casing of field of automobile
And its technique, risen vehicle clamper and setting by the rotary jig being set on machining center, the Inner being set on centre numerically controlled lathe
In the vehicle spherical surface fixture composition on centre numerically controlled lathe, wherein：The rotary jig includes：Both ends are set by runner assembly
In the operation part on machining center, wherein：The operation part includes：It is fixedly installed on clamping fixture seat positive and negative respectively
Several hydraulic corner cylinders, operation console and the dowelled spanner being rotatably dispose on clamping fixture seat, wherein：It is positive every positioned at clamping fixture seat
A operation console extension is evenly distributed with three hydraulic corner cylinders used for positioning, and the clamping fixture seat reverse side of corresponding each operation console sets that there are one use
In the hydraulic corner cylinder of the material returned；The dowelled spanner face operation console；The Inner vehicle clampers that rise include：Axial force distribution part and
Radial direction force-applying piece, wherein：The front end of radial direction force-applying piece is connected with being set to the mandrel to be fixed of numerically controlled lathe, and rear end is applied with axial
One end of power part is connected, and the other end of axial force distribution part is connected with numerically controlled lathe fixed frame.This structure is filled by a processing
It puts and adds a processing technology, this processing step is relative complex, and the cost is relatively high for manufacture, and properties of product are not relatively strong.
Invention content
The present invention mainly solves the deficiencies in the prior art, and it is scientific and reasonable to provide a kind of step operation, further
Reduce a kind of preparation method of high-stability large torque differential casing of manufacture cost.
The above-mentioned technical problem of the present invention is mainly what is be addressed by following technical proposals：
A kind of preparation method of high-stability large torque differential casing, carries out according to the following steps：
(1), product structure：
This product is nodular iron casting, is divided into left and right two parts, respectively by sand casting one-pass molding, respectively will first be machined
The two-part spherical in left and right and connecting portion process, and are then fixed two parts by bolt, time processing goes out planet
Hole ensures the relative position degree between each hole and bearing guard；
(2), blank makes：
The blank of product is by casting and forming, and the material of selection is QT500-7, first by mold flow analysis, to casting
Riser in journey, runner carry out simulation casting, so as to find that the possibility of casting flaw is also easy to produce in casting cycle, are adjusted and keep away
Exempt from；
According to mold flow analysis come out as a result, design mould structure, increase Feeding channel, machine-shaping；It then will be by
The molten iron of the proportioned 1300 ° of high temperature of QT500-7 elements is molded into mold cavity, is come out of the stove by the heat preservation of 3 hours, then carried out
Every Metallographic Analysis and performance test, to confirm material qualification；
(3), semi-finished product make：
1st, left poor shell：
Temper is first carried out, statenchyma structure reduces material hardness, eliminates internal stress, and hardness is controlled in HB190
Between~HB210；Then upper numerically controlled lathe, clamps both ends, with 120m/min linear velocities, 280mm/min feed speeds make product
Shape and inner cavity spherical surface preliminarily forming, for finish reserved margin 0.5mm；
Completion of processing, workpiece, which is placed in storing basket, to be retained 24 hours or more, to eliminate the plasticity that big surplus cutting is brought
Deformation；
Digital control lathe chuck oil pressure pressure is adjusted to 6bar, reduces clamping deformation, smart car 1/2 is justified, and circularity is kept to exist
Within 0.01mm, concentricity Φ 0.03mm, roughness Ra 1.6, while step seam allowance to the cooperation requirement of 0.02mm, is protected in smart car
Demonstrate,prove flatness 0.03mm；
Then work in-process in the heart, with compound step drill with the rotating speed of 1800r/min, once will by the feeding of 420mm/min
Thread Pilot hole and step machine-shaping, have not only been saved process time, but also ensure that the concentricity of holes simultaneously；Burr is cleared up, etc.
It is to be assembled；
2nd, right poor shell：
Temper is first carried out, statenchyma structure reduces material hardness, eliminates internal stress, and hardness is controlled in HB190
Between~HB210；Then upper numerically controlled lathe, clamps both ends, with 120m/min linear velocities, 280mm/min feed speeds make product
Shape and inner cavity spherical surface preliminarily forming, for finish reserved margin 0.5mm；
Completion of processing, workpiece, which is placed in storing basket, to be retained 24 hours or more, to eliminate the plasticity that big surplus cutting is brought
Deformation；
Digital control lathe chuck oil pressure pressure is adjusted to 6bar, reduces clamping deformation, smart car 1/2 is justified, and circularity is kept to exist
Within 0.01mm, concentricity Φ 0.03mm, roughness Ra 1.6, while the cooperation of smart car outer lug boss to 0.02mm require；Then exist
On machining center, bored with high speed deep hole U with the rotating speed of 2400r/min, the feeding of 350mm/min, it, will by deep hole cyclic process
Chip discharge in bolt hole comes, and ensure that the straightness and position degree in hole；Burr is cleared up, is waited to be assembled.
(4), it assembles：
Grinding process is carried out to semi-finished product, removes burrs on edges, flange clears up both sides faying face；Using 0.02mm clearance gauges
It checks whether binding face is bonded closely, then with 12.9 grade high-strength bolt M8 × 100 of GB/T70.1 standards, penetrates screw hole,
It is screwed in the torque of 42N.m, develops the fastening of bolt plane, on left and right difference shell designated position with laser marking machine by drawing
Pairing identification code is stamped, in order to be used in dismounting pairing from now on；
(5), planet hole makes：
Product is cross axle construction, and product is placed on four revolving platforms, entire production is supported with dedicated tailstock centre
Product prevent from dropping；Turntable with 90 ° of directions is rotated, processes planet hole successively, to ensure the straightness in planet hole
0.02mm and position degree, are detected using special gauge, and since the axial line in planet hole is just on the faying face of left and right difference shell, easily
Drill bit deviation phenomenon is generated, influences straightness and position degree, therefore is bored with U with the cutting speed of 135m/min in processing,
The amount of feeding of 300mm/min carries out drilling processing, is modified finishing with boring cutter later, to ensure the geometric tolerance needed；
(6), final inspection：
It is required according to product drawing, tested to the geometric dimension of product；
(7), purged and packed：
Assembly is disassembled, is put into special-purpose ultrasonic cleaning machine, passes through ultrasonic cleaning, cleaning rinsing, dried, oiled
The cleannes standard of workpiece is controlled within 10 grades, workpiece then is packed cartonning by packing instructions by journey；
(8), it is put in storage：
The qualified products accompanying quality certification handles storage formality.
This product is conventional products, using scientific and reasonable operating procedure, promotes the quality of product, while reduces enterprise's life
Produce cost.By the linkage of equipment and equipment technical parameters, effective Control platform.
Therefore, the preparation method of a kind of high-stability large torque differential casing of the invention further promotes product
Quality reduces enterprise's production cost.
Specific embodiment
Below by embodiment, the technical solutions of the present invention will be further described.
Embodiment 1：A kind of preparation method of high-stability large torque differential casing, carries out according to the following steps：
(1), product structure：
This product is nodular iron casting, is divided into left and right two parts, respectively by sand casting one-pass molding, respectively will first be machined
The two-part spherical in left and right and connecting portion process, and are then fixed two parts by bolt, time processing goes out planet
Hole ensures the relative position degree between each hole and bearing guard；
(2), blank makes：
The blank of product is by casting and forming, and the material of selection is QT500-7, first by mold flow analysis, to casting
Riser in journey, runner carry out simulation casting, so as to find that the possibility of casting flaw is also easy to produce in casting cycle, are adjusted and keep away
Exempt from；
According to mold flow analysis come out as a result, design mould structure, increase Feeding channel, machine-shaping；It then will be by
The molten iron of the proportioned 1300 ° of high temperature of QT500-7 elements is molded into mold cavity, is come out of the stove by the heat preservation of 3 hours, then carried out
Every Metallographic Analysis and performance test, to confirm material qualification；
(3), semi-finished product make：
1st, left poor shell：
Temper is first carried out, statenchyma structure reduces material hardness, eliminates internal stress, and hardness is controlled in HB190
Between~HB210；Then upper numerically controlled lathe, clamps both ends, with 120m/min linear velocities, 280mm/min feed speeds make product
Shape and inner cavity spherical surface preliminarily forming, for finish reserved margin 0.5mm；
Completion of processing, workpiece, which is placed in storing basket, to be retained 24 hours or more, to eliminate the plasticity that big surplus cutting is brought
Deformation；
Digital control lathe chuck oil pressure pressure is adjusted to 6bar, reduces clamping deformation, smart car 1/2 is justified, and circularity is kept to exist
Within 0.01mm, concentricity Φ 0.03mm, roughness Ra 1.6, while step seam allowance to the cooperation requirement of 0.02mm, is protected in smart car
Demonstrate,prove flatness 0.03mm；
Then work in-process in the heart, with compound step drill with the rotating speed of 1800r/min, once will by the feeding of 420mm/min
Thread Pilot hole and step machine-shaping, have not only been saved process time, but also ensure that the concentricity of holes simultaneously；Burr is cleared up, etc.
It is to be assembled；
2nd, right poor shell：
Temper is first carried out, statenchyma structure reduces material hardness, eliminates internal stress, and hardness is controlled in HB190
Between~HB210；Then upper numerically controlled lathe, clamps both ends, with 120m/min linear velocities, 280mm/min feed speeds make product
Shape and inner cavity spherical surface preliminarily forming, for finish reserved margin 0.5mm；
Completion of processing, workpiece, which is placed in storing basket, to be retained 24 hours or more, to eliminate the plasticity that big surplus cutting is brought
Deformation；
Digital control lathe chuck oil pressure pressure is adjusted to 6bar, reduces clamping deformation, smart car 1/2 is justified, and circularity is kept to exist
Within 0.01mm, concentricity Φ 0.03mm, roughness Ra 1.6, while the cooperation of smart car outer lug boss to 0.02mm require；Then exist
On machining center, bored with high speed deep hole U with the rotating speed of 2400r/min, the feeding of 350mm/min, it, will by deep hole cyclic process
Chip discharge in bolt hole comes, and ensure that the straightness and position degree in hole；Burr is cleared up, is waited to be assembled.
(4), it assembles：
Grinding process is carried out to semi-finished product, removes burrs on edges, flange clears up both sides faying face；Using 0.02mm clearance gauges
It checks whether binding face is bonded closely, then with 12.9 grade high-strength bolt M8 × 100 of GB/T70.1 standards, penetrates screw hole,
It is screwed in the torque of 42N.m, develops the fastening of bolt plane, on left and right difference shell designated position with laser marking machine by drawing
Pairing identification code is stamped, in order to be used in dismounting pairing from now on；
(5), planet hole makes：
Product is cross axle construction, and product is placed on four revolving platforms, entire production is supported with dedicated tailstock centre
Product prevent from dropping；Turntable with 90 ° of directions is rotated, processes planet hole successively, to ensure the straightness in planet hole
0.02mm and position degree, are detected using special gauge, and since the axial line in planet hole is just on the faying face of left and right difference shell, easily
Drill bit deviation phenomenon is generated, influences straightness and position degree, therefore is bored with U with the cutting speed of 135m/min in processing,
The amount of feeding of 300mm/min carries out drilling processing, is modified finishing with boring cutter later, to ensure the geometric tolerance needed；
(6), final inspection：
It is required according to product drawing, tested to the geometric dimension of product；
(7), purged and packed：
Assembly is disassembled, is put into special-purpose ultrasonic cleaning machine, passes through ultrasonic cleaning, cleaning rinsing, dried, oiled
The cleannes standard of workpiece is controlled within 10 grades, workpiece then is packed cartonning by packing instructions by journey；
(8), it is put in storage：
The qualified products accompanying quality certification handles storage formality.
Claims (1)
1. a kind of preparation method of high-stability large torque differential casing, it is characterised in that carry out according to the following steps：
(1), product structure：
This product is nodular iron casting, is divided into left and right two parts, and respectively by sand casting one-pass molding, first machining respectively will left and right
Two-part spherical and connecting portion process, and are then fixed two parts by bolt, and time processing goes out planet hole, protect
Demonstrate,prove the relative position degree between each hole and bearing guard；
(2), blank makes：
The blank of product is by casting and forming, and the material of selection is QT500-7, first by mold flow analysis, in casting cycle
Riser, runner carries out simulation casting, so as to find that the possibility of casting flaw is also easy to produce in casting cycle, is adjusted and avoids；
According to mold flow analysis come out as a result, design mould structure, increase Feeding channel, machine-shaping；It then will be by QT500-7
The molten iron of the proportioned 1300 ° of high temperature of element is molded into mold cavity, is come out of the stove by the heat preservation of 3 hours, then carries out every gold
Facies analysis and performance test, to confirm material qualification；
(3), semi-finished product make：
1st, left poor shell：
First carry out temper, statenchyma structure reduces material hardness, eliminates internal stress, by hardness control HB190~
Between HB210；Then upper numerically controlled lathe, clamps both ends, with 120m/min linear velocities, 280mm/min feed speeds make product
Shape and inner cavity spherical surface preliminarily forming, to finish reserved margin 0.5mm；
Completion of processing, workpiece, which is placed in storing basket, to be retained 24 hours or more, to eliminate the plastic deformation that big surplus cutting is brought；
Digital control lathe chuck oil pressure pressure is adjusted to 6bar, reduces clamping deformation, smart car 1/2 is justified, and keeps circularity in 0.01mm
Within, concentricity Φ 0.03mm, roughness Ra 1.6, while step seam allowance to the cooperation requirement of 0.02mm, ensures plane in smart car
Spend 0.03mm；
Then work in-process in the heart, with compound step drill with the rotating speed of 1800r/min, the feeding of 420mm/min, once by screw thread
Bottom outlet and step machine-shaping, have not only been saved process time, but also ensure that the concentricity of holes simultaneously；Burr is cleared up, is waited to be installed
Match；
2nd, right poor shell：
First carry out temper, statenchyma structure reduces material hardness, eliminates internal stress, by hardness control HB190~
Between HB210；Then upper numerically controlled lathe, clamps both ends, with 120m/min linear velocities, 280mm/min feed speeds make product
Shape and inner cavity spherical surface preliminarily forming, to finish reserved margin 0.5mm；
Completion of processing, workpiece, which is placed in storing basket, to be retained 24 hours or more, to eliminate the plastic deformation that big surplus cutting is brought；
Digital control lathe chuck oil pressure pressure is adjusted to 6bar, reduces clamping deformation, smart car 1/2 is justified, and keeps circularity in 0.01mm
Within, concentricity Φ 0.03mm, roughness Ra 1.6, while the cooperation of smart car outer lug boss to 0.02mm require；Then work in-process
In the heart, it is bored with high speed deep hole U with the rotating speed of 2400r/min, by deep hole cyclic process, bolt is led to for the feeding of 350mm/min
Chip discharge in hole comes, and ensure that the straightness and position degree in hole；Burr is cleared up, is waited to be assembled.
(4), it assembles：
Grinding process is carried out to semi-finished product, removes burrs on edges, flange clears up both sides faying face；Using 0.02mm clearance gauge inspections
Whether binding face is bonded closely, then with 12.9 grade high-strength bolt M8 × 100 of GB/T70.1 standards, penetrates screw hole, with
The torque of 42N.m screws in, and develops the fastening of bolt plane, is beaten by drawing with laser marking machine on left and right difference shell designated position
Upper pairing identification code, in order to be used in dismounting pairing from now on；
(5), planet hole makes：
Product is cross axle construction, and product is placed on four revolving platforms, entire product is supported with dedicated tailstock centre, is prevented
Only drop；Turntable with 90 ° of directions is rotated, processes planet hole successively, to ensure the straightness 0.02mm in planet hole
And position degree, it is detected using special gauge, and since the axial line in planet hole is just on the faying face of left and right difference shell, be also easy to produce brill
Head deviation phenomenon is influenced straightness and position degree, therefore to be bored in processing with U with the cutting speed of 135m/min, 300mm/min
The amount of feeding, carry out drilling processing, be modified finishing with boring cutter later, with ensure needs geometric tolerance；
(6), final inspection：
It is required according to product drawing, tested to the geometric dimension of product；
(7), purged and packed：
Assembly is disassembled, is put into special-purpose ultrasonic cleaning machine, by ultrasonic cleaning, cleaning process rinsing, dried, oiled,
The cleannes standard of workpiece is controlled within 10 grades, workpiece is then packed into cartonning by packing instructions；
(8), it is put in storage：
The qualified products accompanying quality certification handles storage formality.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711260222.7A CN108145379B (en) | 2017-12-04 | 2017-12-04 | A kind of preparation method of high-stability large torque differential casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711260222.7A CN108145379B (en) | 2017-12-04 | 2017-12-04 | A kind of preparation method of high-stability large torque differential casing |
Publications (2)
| Publication Number | Publication Date |
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| CN108145379A true CN108145379A (en) | 2018-06-12 |
| CN108145379B CN108145379B (en) | 2019-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711260222.7A Active CN108145379B (en) | 2017-12-04 | 2017-12-04 | A kind of preparation method of high-stability large torque differential casing |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3783483A (en) * | 1970-09-18 | 1974-01-08 | Borg Warner Ltd | Method of making a fluid coupling member |
| US20090105031A1 (en) * | 2007-10-17 | 2009-04-23 | Michael Sefcik | Differential assembly and method for manufacturing same |
| CN101633091A (en) * | 2008-07-21 | 2010-01-27 | 鞠小平 | Method for processing differential case assembly |
| CN103639666A (en) * | 2013-12-04 | 2014-03-19 | 鞠小平 | Method for machining front shell of differential mechanism |
| CN105479117A (en) * | 2015-12-30 | 2016-04-13 | 山东汇金股份有限公司 | Machining method of special-shaped differential mechanism shell |
| CN105583586A (en) * | 2016-03-22 | 2016-05-18 | 衡阳风顺车桥有限公司 | Machining technology of automobile differential shell |
-
2017
- 2017-12-04 CN CN201711260222.7A patent/CN108145379B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3783483A (en) * | 1970-09-18 | 1974-01-08 | Borg Warner Ltd | Method of making a fluid coupling member |
| US20090105031A1 (en) * | 2007-10-17 | 2009-04-23 | Michael Sefcik | Differential assembly and method for manufacturing same |
| CN101633091A (en) * | 2008-07-21 | 2010-01-27 | 鞠小平 | Method for processing differential case assembly |
| CN103639666A (en) * | 2013-12-04 | 2014-03-19 | 鞠小平 | Method for machining front shell of differential mechanism |
| CN105479117A (en) * | 2015-12-30 | 2016-04-13 | 山东汇金股份有限公司 | Machining method of special-shaped differential mechanism shell |
| CN105583586A (en) * | 2016-03-22 | 2016-05-18 | 衡阳风顺车桥有限公司 | Machining technology of automobile differential shell |
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| Publication number | Publication date |
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| CN108145379B (en) | 2019-09-17 |
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Effective date of registration: 20190808 Address after: Room 708-23, 1816 Harbour Avenue, Xitangqiao Street Economic Development Zone, Haiyan County, Jiaxing City, Zhejiang Province Applicant after: Zhejiang Mingyuan Machinery Co.,Ltd. Address before: 311254 No. 1 Xinguang Road, Suoqian Town, Xiaoshan District, Hangzhou City, Zhejiang Province Applicant before: HANGZHOU SITONG TRANSMISSION Co.,Ltd. |
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Denomination of invention: A kind of preparation method of high stability and high torque differential case Effective date of registration: 20220816 Granted publication date: 20190917 Pledgee: Xitangqiao sub branch of Zhejiang Haiyan Rural Commercial Bank Co.,Ltd. Pledgor: Zhejiang Mingyuan Machinery Co.,Ltd. Registration number: Y2022330001760 |
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Address after: No. 677 Hangzhou Bay Avenue, Xitangqiao Street, Haiyan County, Jiaxing City, Zhejiang Province, 314300 Patentee after: Zhejiang Mingyuan Orion Hydrogen Energy Technology Co.,Ltd. Address before: Room 708-23, No. 1816 Haigang Avenue, Xitangqiao Street Economic Development Zone (Xitangqiao Street), Haiyan County, Jiaxing City, Zhejiang Province, 314300 Patentee before: Zhejiang Mingyuan Machinery Co.,Ltd. |