CN105563052A - Method for integrally forming driving axle housing - Google Patents

Method for integrally forming driving axle housing Download PDF

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Publication number
CN105563052A
CN105563052A CN201610167215.1A CN201610167215A CN105563052A CN 105563052 A CN105563052 A CN 105563052A CN 201610167215 A CN201610167215 A CN 201610167215A CN 105563052 A CN105563052 A CN 105563052A
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CN
China
Prior art keywords
central siphon
axle housing
driving axle
spindle nose
mentioned
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Application number
CN201610167215.1A
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Chinese (zh)
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CN105563052B (en
Inventor
卢文正
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Shanxi Aopas Intelligent Control Axle Technology Co ltd
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Jiangsu Futan Axle Technology Co
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Priority to CN201610167215.1A priority Critical patent/CN105563052B/en
Publication of CN105563052A publication Critical patent/CN105563052A/en
Application granted granted Critical
Publication of CN105563052B publication Critical patent/CN105563052B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P2700/00Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
    • B23P2700/50Other automobile vehicle parts, i.e. manufactured in assembly lines

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Abstract

The invention discloses a method for integrally forming a driving axle housing. The method comprises the following steps: charging an axle tube, heating two ends of the axle tube at medium frequency, thickening an axle head, molding the axle head, squaring a round tube, forming an auxiliary hole, heating the middle of the axle tube at medium frequency, forming a flange hole, and shaping. According to the method, a process of synchronously thermally extruding and molding two ends of a seamless steel tube and thermally expanding and molding the middle of the seamless steel tube is adopted, the process is simple, a welding process is reduced, the axle housing and the axle head are integrated without direct welding lines, and the axle housing has high integral strength; the strength of the axle head is enhanced due to the axle head thickening process, so that the axle head is prevented from cracking; and the appearance and size of the driving axle housing have higher accuracy due to the shaping process.

Description

A kind of driving axle housing integral forming method
technical field:
The present invention relates to tube extrusion forming technique field, be specifically related to a kind of driving axle housing integral forming method.
background technology:
Current automotive light weight technology is developing direction, driving axle housing is as one of of paramount importance parts of car load, for the basic part of Automobile drive and carrying, directly affect the important performances such as the bearing capacity of heavy goods vehicles, transport capacity and security, facilitate driving axle housing light-weight design under guarantee stiffness and strength prerequisite, need more effective technological forming scheme.The moulding process of driving axle housing mainly adopts casting technique and punch welding technique at present, and casting technique existing defects is that stock utilization is low, quality heavy, percent defective is high; Punch welding existing defects: with axle housing body welding forming after the first forging and molding of its spindle nose part, its spindle nose welding position easily ruptures, and technique is loaded down with trivial details, and axle housing anti-fatigue performance can be caused to reduce because of welding deformation, affect service life.
summary of the invention:
The object of the present invention is to provide a kind of production technology simple, axle housing body and spindle nose are an entirety, do not have a kind of driving axle housing integral forming method of direct weld seam.
The technical solution used in the present invention is: a kind of driving axle housing integral forming method, it is characterized in that the method comprises following operation:
1), blanking: getting the circular seamless pipe of 20Mn2 is the base material preparing driving axle housing, and diameter according to demand, wall thickness, length are carried out blanking and obtained central siphon;
2), Frequency Induction Heating: medium frequency induction heater is put at above-mentioned central siphon two ends and heats, central siphon two ends are heated to 850 DEG C-1000 DEG C;
3), spindle nose thickens: the central siphon after the heating of above-mentioned two ends is delivered to location clamping in extrusion equipment, extruder both sides thicken mould relative movement, the central siphon after being heated at two ends is thickening compression and thickening in mould;
4), spindle nose is shaping: the central siphon after being thickened by above-mentioned spindle nose is delivered to location in spindle nose extrusion moulding machine, clamping, and the spindle nose shaping dies relative movement of extrusion moulding machine both sides, by central siphon two ends extrusion molding in spindle nose shaping dies;
5), the pipe side of pushing away: the circular central portion of the central siphon after being shaped by above-mentioned spindle nose becomes square tube through rolled by cold rolling machine;
6), fabrication hole is opened: strip fabrication hole is offered at the middle part of the central siphon opposite face behind the above-mentioned side of pushing away;
7), Frequency Induction Heating: above-mentioned opening is put into medium frequency induction heater in the middle part of the central siphon after fabrication hole and heated, and central siphon is heated to 850 DEG C-1000 DEG C;
8), flange hole is shaped: be delivered in flange hole forming machine by the central siphon after the heating of above-mentioned middle part, start the hydraulic pump at two ends with the axial precompression 250 ± 20T of oil cylinder, two ends to central siphon apply axial compressive force, make the critical condition being in distortion in the middle part of central siphon, middle part diffusion frock enters central siphon fabrication hole position radial component simultaneously, radial component makes the material in the middle part of central siphon extend to external expansion, to the driving axle housing of preliminary dimension shape;
9), shaping: the driving axle housing after being shaped by above-mentioned flange hole is transported in shaping mould, carries out compacting shaping, makes the linearity of flange hole size and driving axle housing reach drawing requirement.
Described operation 1) in the base material of driving axle housing be No. 45 steel hot rolled seamless steel tubes.
Described operation 1) in the base material of driving axle housing be 40Cr hot rolled seamless steel tube.
As preferably, described operation 4) in spindle nose be shaped by twice extrusion molding.
As preferably, described operation 8) in flange hole be shaped and be shaped by twice diffusion.
The invention has the advantages that: by adopting the synchronous hot extrusion molding in seamless steel pipe two ends, middle heat expansion shaped insertion-type technique, technique is simple, saves welding procedure, axle housing body and spindle nose are an entirety, and do not have direct weld seam, axle housing bulk strength is high; Increase spindle nose thickens operation and makes spindle nose intensity enhancing, avoids spindle nose to rupture; Increase trimming, make driving axle housing appearance and size precision higher, more can meet drawing requirement.
accompanying drawing illustrates:
Below in conjunction with the drawings and specific embodiments, the present invention is described in further details:
Fig. 1 is a kind of driving axle housing integral forming method of the present invention operation 1) schematic diagram;
Fig. 2 is a kind of driving axle housing integral forming method of the present invention operation 2) schematic diagram;
Fig. 3 is a kind of driving axle housing integral forming method of the present invention operation 3) schematic diagram;
Fig. 4 is a kind of driving axle housing integral forming method of the present invention operation 4) schematic diagram;
Fig. 5 is a kind of driving axle housing integral forming method of the present invention operation 5) schematic diagram;
Fig. 6 is a kind of driving axle housing integral forming method of the present invention operation 6) schematic diagram;
Fig. 7 is a kind of driving axle housing integral forming method of the present invention operation 7) schematic diagram;
Fig. 8 is a kind of driving axle housing integral forming method of the present invention operation 8) schematic diagram;
Fig. 9 is a kind of driving axle housing integral forming method of the present invention operation 9) schematic diagram.
detailed description of the invention:
A kind of driving axle housing integral forming method of the present invention, the method comprises following operation:
1), blanking: as shown in Figure 1, under to get external diameter be φ 200, wall thickness is the hot rail seamless pipe of 20Mn2 of 14mm is the central siphon preparing driving axle housing;
2), Frequency Induction Heating: as shown in Figure 2, above-mentioned central siphon two ends are put into medium frequency induction heater (1) heating, central siphon two ends are heated to 850 DEG C-1000 DEG C, 3.5 minutes heat times, heated length 500mm;
3), spindle nose thickens: as shown in Figure 3, central siphon after the heating of above-mentioned two ends is delivered in extrusion equipment with clamping device (3) clamping, extruder both sides thicken mould (2) relative movement, the central siphon after being heated at two ends is thickening compression and thickening in mould (2);
4), spindle nose is shaping: as shown in Figure 4, central siphon after being thickened by above-mentioned spindle nose is delivered in spindle nose extrusion moulding machine with clamping device (5) clamping,, spindle nose shaping dies (4) relative movement of extrusion moulding machine both sides, by central siphon two ends extrusion molding in spindle nose shaping dies (4);
5), the pipe side of pushing away: as shown in Figure 5, the circular central portion of the central siphon after being shaped by above-mentioned spindle nose becomes square tube through rolled by cold rolling machine;
6), open fabrication hole: as shown in Figure 6, the bar shaped fabrication hole that two length are 650mm is offered at the middle part of the central siphon opposite face behind the above-mentioned side of pushing away;
7), Frequency Induction Heating: as shown in Figure 7, above-mentioned opening in the middle part of the central siphon after fabrication hole is put into medium frequency induction heater (6) heating, and central siphon is heated to 850 DEG C-1000 DEG C, 3.5 minutes heat times, heated length 600mm;
8), flange hole is shaped: as shown in Figure 8, central siphon after the heating of above-mentioned middle part is delivered in flange hole forming machine, start the hydraulic pump at two ends with the axial precompression 250 ± 20T of oil cylinder (7), two ends to central siphon apply axial compressive force, make the critical condition being in distortion in the middle part of central siphon, middle part diffusion frock (8) enters central siphon fabrication hole position radial component simultaneously, and radial component makes the material in the middle part of central siphon extend to external expansion, to the driving axle housing of preliminary dimension shape;
9), shaping: as shown in Figure 9, the driving axle housing after being shaped by above-mentioned flange hole is transported in shaping mould (9), carries out compacting shaping, makes the linearity of flange hole size and driving axle housing reach drawing requirement.
Described operation 1) in the base material of driving axle housing be No. 45 steel hot rolled seamless steel tubes.
Described operation 1) in the base material of driving axle housing be 40Cr hot rolled seamless steel tube.
As preferably, described operation 4) in spindle nose be shaped by twice extrusion molding.
As preferably, described operation 8) in flange hole be shaped and be shaped by twice diffusion.
Above-mentioned embodiment, as preferred embodiment of the present invention, is not used for limiting the scope of the invention.

Claims (5)

1. a driving axle housing integral forming method, is characterized in that the method comprises following operation:
1), blanking: getting the circular seamless pipe of 20Mn2 is the base material preparing driving axle housing, and diameter according to demand, wall thickness, length are carried out blanking and obtained central siphon;
2), Frequency Induction Heating: medium frequency induction heater is put at above-mentioned central siphon two ends and heats, central siphon two ends are heated to 850 DEG C-1000 DEG C;
3), spindle nose thickens: the central siphon after the heating of above-mentioned two ends is delivered to location clamping in extrusion equipment, extruder both sides thicken mould relative movement, the central siphon after being heated at two ends is thickening compression and thickening in mould;
4), spindle nose is shaping: the central siphon after being thickened by above-mentioned spindle nose is delivered to location in spindle nose extrusion moulding machine, clamping, and the spindle nose shaping dies relative movement of extrusion moulding machine both sides, by central siphon two ends extrusion molding in spindle nose shaping dies;
5), the pipe side of pushing away: the circular central portion of the central siphon after being shaped by above-mentioned spindle nose becomes square tube through rolled by cold rolling machine;
6), fabrication hole is opened: strip fabrication hole is offered at the middle part of the central siphon opposite face behind the above-mentioned side of pushing away;
7), Frequency Induction Heating: above-mentioned opening is put into medium frequency induction heater in the middle part of the central siphon after fabrication hole and heated, and central siphon is heated to 850 DEG C-1000 DEG C;
8), flange hole is shaped: be delivered in flange hole forming machine by the central siphon after the heating of above-mentioned middle part, start the hydraulic pump at two ends with the axial precompression 250 ± 20T of oil cylinder, two ends to central siphon apply axial compressive force, make the critical condition being in distortion in the middle part of central siphon, middle part diffusion frock enters central siphon fabrication hole position radial component simultaneously, radial component makes the material in the middle part of central siphon extend to external expansion, to the driving axle housing of preliminary dimension shape;
9), shaping: the driving axle housing after being shaped by above-mentioned flange hole is transported in shaping mould, carries out compacting shaping, makes the linearity of flange hole size and driving axle housing reach drawing requirement.
2. a kind of driving axle housing integral forming method according to claim 1, is characterized in that: described operation 1) in the base material of driving axle housing be No. 45 steel hot rolled seamless steel tubes.
3. a kind of driving axle housing integral forming method according to claim 1, is characterized in that: described operation 1) in the base material of driving axle housing be 40Cr hot rolled seamless steel tube.
4. a kind of driving axle housing integral forming method according to claim 1, is characterized in that: described operation 4) in spindle nose be shaped by twice extrusion molding.
5. a kind of driving axle housing integral forming method according to claim 1, is characterized in that: described operation 8) in flange hole be shaped and be shaped by twice diffusion.
CN201610167215.1A 2016-03-23 2016-03-23 A kind of driving axle housing integral forming method Expired - Fee Related CN105563052B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610167215.1A CN105563052B (en) 2016-03-23 2016-03-23 A kind of driving axle housing integral forming method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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CN105563052B CN105563052B (en) 2018-06-26

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106180354A (en) * 2016-07-19 2016-12-07 江西江铃底盘股份有限公司 A kind of automobile drive axle housing body cuts long method for cutting edge
CN106427400A (en) * 2016-06-29 2017-02-22 吉林省车桥汽车零部件有限公司 Axle housing of driven axle, as well as shaping mold and shaping technology of axle housing
CN106424528A (en) * 2016-10-14 2017-02-22 北京机电研究所 Forming method and forming device for axle head of driving axle housing
CN107009147A (en) * 2017-05-15 2017-08-04 江苏福坛车桥科技有限公司 A kind of Drive axle housing is integrally formed equipment
CN108839515A (en) * 2018-07-25 2018-11-20 泰州神舟传动科技有限公司 A kind of integral type axle housing forged by heating in medium frequency
CN110802374A (en) * 2019-11-18 2020-02-18 吉林大学 Manufacturing method of variable cross-section automobile driving axle housing
CN111992982A (en) * 2019-05-27 2020-11-27 孙振会 Automatic method for forming integral drive axle
CN111992983A (en) * 2019-05-27 2020-11-27 孙振会 Trailer axle forming automation method
CN112643301A (en) * 2020-12-03 2021-04-13 河南凤宝重工科技有限公司 Driving axle housing blank and manufacturing method thereof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1616161A (en) * 2003-11-14 2005-05-18 衡阳欣凯实业有限公司 Method for producing non-cast integrally formed antomobile driving axle shell
CN101417383A (en) * 2008-11-20 2009-04-29 张志平 Pressing method of whole automobile axle housing
CN101524736A (en) * 2008-10-31 2009-09-09 青特集团有限公司 Machining method of bearing axle shell of automobile
KR101315361B1 (en) * 2012-05-12 2013-10-07 (주)엠프로텍 Shaft manufacturing method
KR101348348B1 (en) * 2013-04-01 2014-01-07 주식회사 신명유압 The valve sheet processing method of third stage cylinder for high place operation car
CN103586336A (en) * 2013-11-21 2014-02-19 湖南中联重科车桥有限公司 Manufacturing method for banjo axle housing and axle housing
CN103624482A (en) * 2012-08-21 2014-03-12 湖北奥德车桥有限公司 Method for forming whole axle housing of automobile drive axle

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1616161A (en) * 2003-11-14 2005-05-18 衡阳欣凯实业有限公司 Method for producing non-cast integrally formed antomobile driving axle shell
CN101524736A (en) * 2008-10-31 2009-09-09 青特集团有限公司 Machining method of bearing axle shell of automobile
CN101417383A (en) * 2008-11-20 2009-04-29 张志平 Pressing method of whole automobile axle housing
KR101315361B1 (en) * 2012-05-12 2013-10-07 (주)엠프로텍 Shaft manufacturing method
CN103624482A (en) * 2012-08-21 2014-03-12 湖北奥德车桥有限公司 Method for forming whole axle housing of automobile drive axle
KR101348348B1 (en) * 2013-04-01 2014-01-07 주식회사 신명유압 The valve sheet processing method of third stage cylinder for high place operation car
CN103586336A (en) * 2013-11-21 2014-02-19 湖南中联重科车桥有限公司 Manufacturing method for banjo axle housing and axle housing

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106427400A (en) * 2016-06-29 2017-02-22 吉林省车桥汽车零部件有限公司 Axle housing of driven axle, as well as shaping mold and shaping technology of axle housing
CN106180354A (en) * 2016-07-19 2016-12-07 江西江铃底盘股份有限公司 A kind of automobile drive axle housing body cuts long method for cutting edge
CN106180354B (en) * 2016-07-19 2018-05-22 江西江铃底盘股份有限公司 A kind of automobile drive axle housing body cuts long method for cutting edge
CN106424528A (en) * 2016-10-14 2017-02-22 北京机电研究所 Forming method and forming device for axle head of driving axle housing
CN106424528B (en) * 2016-10-14 2018-01-16 北京机电研究所 The former of driving axle housing spindle nose
CN107009147A (en) * 2017-05-15 2017-08-04 江苏福坛车桥科技有限公司 A kind of Drive axle housing is integrally formed equipment
CN108839515A (en) * 2018-07-25 2018-11-20 泰州神舟传动科技有限公司 A kind of integral type axle housing forged by heating in medium frequency
CN111992982A (en) * 2019-05-27 2020-11-27 孙振会 Automatic method for forming integral drive axle
CN111992983A (en) * 2019-05-27 2020-11-27 孙振会 Trailer axle forming automation method
CN110802374A (en) * 2019-11-18 2020-02-18 吉林大学 Manufacturing method of variable cross-section automobile driving axle housing
CN110802374B (en) * 2019-11-18 2022-01-21 吉林大学 Manufacturing method of variable cross-section automobile driving axle housing
CN112643301A (en) * 2020-12-03 2021-04-13 河南凤宝重工科技有限公司 Driving axle housing blank and manufacturing method thereof

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Address after: 213299 No. 168, Hua Cheng Middle Road, Jintan District, Jiangsu, Changzhou

Applicant after: JIANGSU FUTAN AXLE TECHNOLOGY CO.,LTD.

Address before: 213299, No. 168, Hua Cheng Middle Road, Jintan, Jiangsu, Changzhou

Applicant before: JIANGSU FUTAN AXLE TECHNOLOGY CO.

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Effective date of registration: 20200715

Address after: 030600 No.539, Guang'an East Street, new energy automobile park, Jinzhong Development Zone, Shanxi demonstration zone, Jinzhong City, Shanxi Province

Patentee after: Shanxi aopas intelligent control axle Technology Co.,Ltd.

Address before: 213299 No. 168, Hua Cheng Middle Road, Jintan District, Jiangsu, Changzhou

Patentee before: JIANGSU FUTAN AXLE TECHNOLOGY Co.,Ltd.

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Granted publication date: 20180626