CN102658461B - Axle gear ring tray machining process - Google Patents
Axle gear ring tray machining process Download PDFInfo
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- CN102658461B CN102658461B CN201210160174.5A CN201210160174A CN102658461B CN 102658461 B CN102658461 B CN 102658461B CN 201210160174 A CN201210160174 A CN 201210160174A CN 102658461 B CN102658461 B CN 102658461B
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- endoporus
- gear ring
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Abstract
The invention discloses an axle gear ring tray machining process which includes blank preparation, rough machining, heat treatment, semi-finishing, finish machining and product inspection. The heat treatment adopts thermal refining treatment, so that machined axle gear ring trays can be high in surface hardness and abrasion resistance, and the service life of the machined axle gear ring trays can be prolonged.
Description
Technical field
The present invention relates to a kind of auto parts machinery processing technology, relate in particular to a kind of vehicle bridge gear ring pallet processing technology.
Background technology
Vehicle bridge gear ring pallet is one of vertical strength member of putting the drive axle that vehicle all must be equipped with of engine, belong to disk-like accessory, be provided with endoporus, that the power of engine is delivered to the important driving parts that drives wheel, for heavy goods vehicles mining or that engineering is exported with contour power, for adapting to the larger torque of its transmission system, guarantee the structural strength of car vehicle bridge gear ring pallet, general design vehicle bridge gear ring pallet is comparatively thick and heavy, gear ring modulus is larger, in prior art vehicle bridge gear ring pallet processing technology, heat treatment generally adopts Quenching Treatment, its defect is: the depth of quenching and carburizing carbon potential do not reach requirement, surface of the work lower hardness, wear no resistance, inefficacy easy to wear in use procedure, service life is short.
Therefore, need a kind of vehicle bridge gear ring pallet processing technology, the case hardness that makes to process product is high, wearability is strong.
Summary of the invention
In view of this, the object of this invention is to provide a kind of vehicle bridge gear ring pallet processing technology, changed heat treatment mode in the past, the case hardness that makes to process vehicle bridge gear ring pallet is high, wearability is strong, is beneficial to and extends its service life.
Vehicle bridge gear ring pallet processing technology of the present invention, comprises blank preparation, roughing, heat treatment, semifinishing, fine finishining and the examination and test of products, specifically comprises the following steps:
A. blank is prepared: die forging base or buying forging stock, then carry out forging stock check;
B. roughing:
B1. rough turn little cylindrical, endoporus, end face, reserved allowance 2～3mm, all surfaces roughness reaches Ra12.5;
B2. rough turn overall length, large seam and tooth cylindrical, reserved allowance 2～3mm, all surfaces roughness reaches Ra12.5;
C. heat treatment: adopt modifier treatment, quenching and tempering hardness is 250-280HB;
D. semifinishing:
D1. half finish turning endoporus, large end face, cylindrical and transverse tooth thickness, transverse tooth thickness and large end face are reserved allowance 2～2.5mm, other reserved allowance 0.7～1.5mm, inner bore surface roughness reaches Ra3.2;
D2. the large seam of half finish turning, inner cone and tooth cylindrical, reserved allowance 0.7～1.5mm, large seam surface roughness reaches Ra3.2;
D3. be positioned at endoporus garland key;
D4. repair basal plane, large seam surface roughness reaches Ra1.6, and large seam is not more than 0.05 with respect to endoporus run-out tolerance;
E. fine finishining:
E1. finish turning overall length, little cylindrical and transverse tooth thickness are to target size and be positioned at the little outer rounded shoulders fillet of falling R10, and all surfaces roughness reaches Ra3.2, and little cylindrical is not more than 0.06 with respect to endoporus run-out tolerance, and large end face is not more than 0.03 with respect to large seam run-out tolerance;
E2. finish turning tooth cylindrical, inner cone and large seam are to target size, and inner cone surface roughness reaches Ra1.6, all the other Ra6.3, and inner cone is not more than 0.03 with respect to endoporus run-out tolerance;
E3. upper rolling tooth machine gear hobbing, tooth-face roughness reaches Ra3.2, and tooth diameter is jumped tolerance and is not more than 0.07,0.2 × 45 ° of tooth both sides chamfered edge;
E4. go up drilling machine drilling and tapping, screw thread roughness reaches Ra3.2;
E5. fine grinding, cylindrical and surface roughness reach Ra0.8, and excircle radical runout tolerance is not more than 0.025;
F: check product size and outward appearance.
Further, in described step c, hardening and tempering method is: workpiece is heated to 880 ℃～900 ℃, is incubated and oozes by force 3 hours after 30 minutes, carbon potential 0.4, then temperature was down to 860 ℃ of diffusions 10 minutes, and carbon potential 0.4 is come out of the stove, oil quenching 600 seconds, wherein stir by force and within 500 seconds, stir slowly 100 seconds, after finally taking-up drains 200 seconds, carry out tempering, 580 ℃～590 ℃ of temperatures, tempering time 2 hours;
Further, in described step e2, when finish turning inner cone, be positioned at the chamfering of 0.2～0.3 × 45 ° of outer opening's edge processing.
The invention has the beneficial effects as follows: vehicle bridge gear ring pallet processing technology of the present invention, change heat treatment mode in the past, the case hardness that makes to process vehicle bridge gear ring pallet is high, wearability is strong, is beneficial to and extends its service life.
The specific embodiment
The vehicle bridge gear ring pallet processing technology of the present embodiment, comprises blank preparation, roughing, heat treatment, semifinishing, fine finishining and the examination and test of products, specifically comprises the following steps:
A. blank is prepared: buying forging stock is also checked forging stock material, size and outward appearance;
B. roughing:
B1. rough turn little cylindrical, endoporus, end face, reserved allowance 2～3mm, all surfaces roughness reaches Ra12.5;
B2. rough turn overall length, large seam and tooth cylindrical, reserved allowance 2～3mm, all surfaces roughness reaches Ra12.5;
C. heat treatment: adopt modifier treatment, quenching and tempering hardness is 250-280HB, hardening and tempering method is: workpiece is heated to 880 ℃～900 ℃, be incubated and ooze by force 3 hours after 30 minutes, carbon potential 0.4, then temperature is down to 860 ℃ of diffusions 10 minutes, carbon potential 0.4 is come out of the stove, oil quenching 600 seconds, wherein stir by force and within 500 seconds, stir slowly 100 seconds, after finally taking-up drains 200 seconds, carry out tempering, 580 ℃～590 ℃ of temperatures, tempering time 2 hours, adopt modifier treatment to replace Quenching Treatment in the past, can increase the depth of quenching and carburizing carbon potential, after processing, surface of the work hardness is high, wearability is strong, be beneficial to and extend its service life,
D. semifinishing:
D1. half finish turning endoporus, large end face, cylindrical and transverse tooth thickness, transverse tooth thickness and large end face are reserved allowance 2～2.5mm, other reserved allowance 0.7～1.5mm, inner bore surface roughness reaches Ra3.2;
D2. the large seam of half finish turning, inner cone and tooth cylindrical, reserved allowance 0.7～1.5mm, large seam surface roughness reaches Ra3.2;
D3. be positioned at endoporus garland key;
D4. repair basal plane, large seam surface roughness reaches Ra1.6, and large seam is not more than 0.05 with respect to endoporus run-out tolerance;
E. fine finishining:
E1. finish turning overall length, little cylindrical and transverse tooth thickness are to target size and be positioned at the little outer rounded shoulders fillet of falling R10, and all surfaces roughness reaches Ra3.2, and little cylindrical is not more than 0.06 with respect to endoporus run-out tolerance, and large end face is not more than 0.03 with respect to large seam run-out tolerance;
E2. finish turning tooth cylindrical, inner cone and large seam are to target size, and inner cone surface roughness reaches Ra1.6, all the other Ra6.3, and inner cone is not more than 0.03 with respect to endoporus run-out tolerance, is positioned at the chamfering of 0.2～0.3 × 45 ° of outer opening's edge processing when finish turning inner cone;
E3. upper rolling tooth machine gear hobbing, tooth-face roughness reaches Ra3.2, and tooth diameter is jumped tolerance and is not more than 0.07,0.2 × 45 ° of tooth both sides chamfered edge;
E4. go up drilling machine drilling and tapping, screw thread roughness reaches Ra3.2;
E5. fine grinding, cylindrical and surface roughness reach Ra0.8, and excircle radical runout tolerance is not more than 0.025;
F: check product size and outward appearance.
Finally explanation is, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (2)
1. a vehicle bridge gear ring pallet processing technology, is characterized in that: comprise blank preparation, roughing, heat treatment, semifinishing, fine finishining and the examination and test of products, specifically comprise the following steps:
A. blank is prepared: die forging base or buying forging stock, then carry out forging stock check;
B. roughing:
B1. rough turn little cylindrical, endoporus, end face, reserved allowance 2～3mm, all surfaces roughness reaches Ra12.5;
B2. rough turn overall length, large seam and tooth cylindrical, reserved allowance 2～3mm, all surfaces roughness reaches Ra12.5;
C. heat treatment: adopt modifier treatment, quenching and tempering hardness is 250-280HB; Hardening and tempering method is: workpiece is heated to 880 ℃～900 ℃, be incubated and ooze by force 3 hours after 30 minutes, carbon potential 0.4, then temperature was down to 860 ℃ of diffusions 10 minutes, and carbon potential 0.4 is come out of the stove, oil quenching 600 seconds, wherein stir by force and within 500 seconds, stir slowly 100 seconds, after finally taking-up drains 200 seconds, carry out tempering, 580 ℃～590 ℃ of temperatures, tempering time 2 hours;
D. semifinishing:
D1. half finish turning endoporus, large end face, cylindrical and transverse tooth thickness, transverse tooth thickness and large end face are reserved allowance 2～2.5mm, other reserved allowance 0.7～1.5mm, inner bore surface roughness reaches Ra3.2;
D2. the large seam of half finish turning, inner cone and tooth cylindrical, reserved allowance 0.7～1.5mm, large seam surface roughness reaches Ra3.2;
D3. be positioned at endoporus garland key;
D4. repair basal plane, large seam surface roughness reaches Ra1.6, and large seam is not more than 0.05 with respect to endoporus run-out tolerance;
E. fine finishining:
E1. finish turning overall length, little cylindrical and transverse tooth thickness are to target size and be positioned at the little outer rounded shoulders fillet of falling R10, and all surfaces roughness reaches Ra3.2, and little cylindrical is not more than 0.06 with respect to endoporus run-out tolerance, and large end face is not more than 0.03 with respect to large seam run-out tolerance;
E2. finish turning tooth cylindrical, inner cone and large seam are to target size, and inner cone surface roughness reaches Ra1.6, all the other Ra6.3, and inner cone is not more than 0.03 with respect to endoporus run-out tolerance;
E3. upper rolling tooth machine gear hobbing, tooth-face roughness reaches Ra3.2, and tooth diameter is jumped tolerance and is not more than 0.07,0.2 × 45 ° of tooth both sides chamfered edge;
E4. go up drilling machine drilling and tapping, screw thread roughness reaches Ra3.2;
E5. fine grinding, cylindrical and surface roughness reach Ra0.8, and excircle radical runout tolerance is not more than 0.025;
F: check product size and outward appearance.
2. vehicle bridge gear ring pallet processing technology according to claim 1, is characterized in that: in described step e2, be positioned at the chamfering of 0.2～0.3 × 45 ° of outer opening's edge processing when finish turning inner cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210160174.5A CN102658461B (en) | 2012-05-22 | 2012-05-22 | Axle gear ring tray machining process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210160174.5A CN102658461B (en) | 2012-05-22 | 2012-05-22 | Axle gear ring tray machining process |
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| CN102658461A CN102658461A (en) | 2012-09-12 |
| CN102658461B true CN102658461B (en) | 2014-07-09 |
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| CN103464991A (en) * | 2013-09-18 | 2013-12-25 | 江国辉 | Gear ring machining process |
| CN103817501B (en) * | 2014-02-24 | 2016-08-17 | 常州天山重工机械有限公司 | The processing method of super large precision gear ring, made gear ring and the assembly method of gear ring |
| CN105081712A (en) * | 2014-05-05 | 2015-11-25 | 江阴市永兴机械制造有限公司 | Gear tempering processing method |
| CN104070332B (en) * | 2014-06-24 | 2017-05-03 | 重庆神箭汽车传动件有限责任公司 | Method for processing gear ring |
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| CN104668919B (en) * | 2015-01-12 | 2017-02-22 | 广东华力通变压器有限公司 | Process for machining special winding gears for transformers with roll iron cores |
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| CN106271436B (en) * | 2016-08-31 | 2018-10-12 | 江苏金卡汽车部件有限公司 | A kind of gear ring support processing technology |
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| CN111230405B (en) * | 2020-03-13 | 2021-09-24 | 宁波江丰电子材料股份有限公司 | Machining method of wafer tray |
| CN111822949B (en) * | 2020-06-28 | 2022-03-29 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Surface machining process for wind power gear ring |
| CN111850254B (en) * | 2020-08-17 | 2022-06-21 | 綦江重配齿轮有限公司 | Method for preventing spline shaft from medium-frequency quenching deformation |
| CN112658619A (en) * | 2020-12-29 | 2021-04-16 | 苏州浩耀辰智能科技有限公司 | Machining process of backpack mower connecting disc |
| CN113560814A (en) * | 2021-04-26 | 2021-10-29 | 徐州新大隆化工泵业制造有限公司 | Processing technology of high-strength plunger pump check valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH10231908A (en) * | 1997-02-19 | 1998-09-02 | Nissan Motor Co Ltd | Roller for troidal type continuously variable transmission and its manufacture |
| JP4518527B2 (en) * | 2000-10-05 | 2010-08-04 | 株式会社日本テクノ | Carburizing method and carburizing apparatus |
| CN101275179B (en) * | 2007-03-27 | 2011-08-17 | 陕西汽车集团有限责任公司 | Heat treatment process for automobile drive axle housing |
| CN101121957B (en) * | 2007-09-14 | 2011-03-30 | 南京利民机械有限责任公司 | Link joint strengthening method for bicycle chain under weak carbon potential atmosphere |
| CN101748355A (en) * | 2008-12-19 | 2010-06-23 | 黄浩斌 | Carburized quenching heat processing technology method |
| CN102154652B (en) * | 2011-03-11 | 2012-11-28 | 江苏南方轴承股份有限公司 | Medium-deep-layer carburization or carbonitriding thermal processing technology for bearings or clutch parts |
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