CN103341737B - A kind of processing method improving the special-shaped chamber of starting guide cylinder and internal spline coaxiality - Google Patents
A kind of processing method improving the special-shaped chamber of starting guide cylinder and internal spline coaxiality Download PDFInfo
- Publication number
- CN103341737B CN103341737B CN201310291452.5A CN201310291452A CN103341737B CN 103341737 B CN103341737 B CN 103341737B CN 201310291452 A CN201310291452 A CN 201310291452A CN 103341737 B CN103341737 B CN 103341737B
- Authority
- CN
- China
- Prior art keywords
- special
- pilot hole
- processing method
- shaped curved
- die cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000003672 processing method Methods 0.000 title claims abstract description 13
- 238000001125 extrusion Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 4
- 230000008685 targeting Effects 0.000 claims 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 3
- 238000000137 annealing Methods 0.000 abstract description 3
- 238000005422 blasting Methods 0.000 abstract description 3
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 3
- 239000011574 phosphorus Substances 0.000 abstract description 3
- 238000007127 saponification reaction Methods 0.000 abstract description 3
- 238000005461 lubrication Methods 0.000 description 4
- 241000287828 Gallus gallus Species 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Landscapes
- Forging (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
本发明公开了一种提高起动导向筒异型腔与内花键同轴度的加工方法。包括以下步骤：（1）锯料、（2）退火、（3）制坯、（4）抛丸与磷皂化处理、（5）正挤、（6）镦粗、（7）反挤异型曲面型腔及导向孔、（8）基于导向孔旋转挤压螺旋内花键。所述步骤(7)反挤异型曲面型腔及导向孔是指在反向挤压成形异型曲面型腔的同时，完成起动导向筒下部螺旋内花键旋转挤压成形时冲头的导向孔成形；所述步骤(8)基于导向孔旋转挤压螺旋内花键是指旋转挤压冲头通过导向孔的导向作用，完成螺旋内花键的挤压成形。本发明能够提高起动导向筒异型腔与内花键成形加工的同轴度。
The invention discloses a processing method for improving the coaxiality between a special-shaped cavity of a starting guide cylinder and an inner spline. Including the following steps: (1) sawing, (2) annealing, (3) billet making, (4) shot blasting and phosphorus saponification treatment, (5) forward extrusion, (6) upsetting, (7) back extrusion special-shaped curved surface Cavity and guide hole, (8) Rotate and extrude the helical internal spline based on the guide hole. The step (7) back-extruding the special-shaped curved surface cavity and the guide hole refers to forming the guide hole of the punch when the spiral internal spline in the lower part of the starting guide cylinder is rotated and extruded while the special-shaped curved surface cavity is formed by reverse extrusion. ; The step (8) rotating the extruding helical internal spline based on the guide hole means that the rotating extrusion punch passes through the guiding function of the guide hole to complete the extrusion forming of the helical internal spline. The invention can improve the coaxiality between the special-shaped cavity of the starting guide cylinder and the forming process of the inner spline.
Description
技术领域 technical field
本发明涉及金属精密锻造工艺，具体涉及一种提高起动导向筒异型腔与内花键同轴度的加工方法，属于零件加工技术领域。 The invention relates to a metal precision forging process, in particular to a processing method for improving the coaxiality between a special-shaped cavity of a starting guide cylinder and an internal spline, and belongs to the technical field of parts processing.
背景技术 Background technique
汽车起动导向筒是汽车起动机中的关键零件，形状复杂，精度要求高，尤其是上部异型曲面型腔与下部螺旋内花键的同轴度要求。现有的加工方法(参见：孟先令，宋学进. 起动导向筒的净成形工艺研究，第3届全国精密锻造学术研讨会论文集[C]，江苏盐城，2008.12，37-40.)是：（1）下料、（2）软化处理、（3）去氧化皮处理、（4）润滑处理、（5）镦粗制坯、（6）润滑、（7）上部异型曲面净成形、（8）机加工内孔、（9）润滑处理、（10）螺旋内花键净成形。然而，由于上述工艺存在如下问题：汽车起动导向筒上部异型曲面型腔成形时的基准是步骤（5）镦粗制坯后上部外圆轴线，而下部螺旋内花键净成形时的基准是步骤（8）机加工内孔的轴线，由于两者基准不一致，因此汽车起动导向筒上部异型曲面型腔与下部螺旋内花键的同轴度要求很难控制在一般的要求φ0.012mm以内。 The car starting guide cylinder is a key part of the car starter, with complex shape and high precision requirements, especially the coaxiality requirement of the upper special-shaped curved surface cavity and the lower helical internal spline. The existing processing method (see: Meng Shiling, Song Xuejin. Research on the net shape process of the starting guide cylinder, the 3rd National Precision Forging Academic Symposium [C], Yancheng, Jiangsu, 2008.12, 37-40.) is: (1 ) blanking, (2) softening treatment, (3) descaling treatment, (4) lubrication treatment, (5) upsetting billet, (6) lubrication, (7) net forming of upper special-shaped surface, (8) machine Machining inner hole, (9) lubrication treatment, (10) net forming of helical inner spline. However, the above-mentioned process has the following problems: the benchmark for the forming of the special-shaped curved surface cavity on the upper part of the automobile starting guide cylinder is the axis of the upper outer circle after upsetting the billet in step (5), while the benchmark for the net forming of the lower helical internal spline is the step (5). (8) Since the axis of the machined inner hole is not consistent with the two datums, it is difficult to control the coaxiality requirements of the upper special-shaped curved surface cavity and the lower helical inner spline of the automobile starting guide cylinder within the general requirement of φ0.012mm.
发明内容 Contents of the invention
本发明所要解决的技术问题是提供一种提高起动导向筒异型腔与内花键同轴度的加工方法。本发明采用的技术方案是：一种提高起动导向筒异型腔与内花键同轴度的加工方法。包括如下步骤：（1）锯料、（2）退火、（3）制坯、（4）抛丸与磷皂化处理、（5）正挤、（6）镦粗、（7）反挤异型曲面型腔及导向孔、（8）基于导向孔旋转挤压螺旋内花键。 The technical problem to be solved by the present invention is to provide a processing method for improving the coaxiality between the special-shaped cavity of the starting guide cylinder and the inner spline. The technical scheme adopted by the invention is: a processing method for improving the coaxiality between the special-shaped cavity of the starting guide cylinder and the inner spline. Including the following steps: (1) sawing, (2) annealing, (3) billet making, (4) shot blasting and phosphorus saponification treatment, (5) forward extrusion, (6) upsetting, (7) back extrusion special-shaped curved surface Cavity and guide hole, (8) Rotate and extrude the helical internal spline based on the guide hole.
所述反挤异型曲面型腔及导向孔是通过反向挤压，实现汽车起动导向筒异型曲面型腔精密成形的同时完成导向孔的精密成形。 The back-extruded special-shaped curved surface cavity and guide hole are realized through reverse extrusion to realize the precise forming of the special-shaped curved surface cavity of the automobile starting guide cylinder and at the same time complete the precise forming of the guide hole.
所述基于导向孔旋转挤压螺旋内花键是通过旋转冲头头部导向部分与步骤（7）形成的导向孔配合，经旋转挤压实现螺旋内花键的精密成形。 The rotary extrusion of the helical internal spline based on the guide hole is achieved by rotating the guide part of the head of the punch to cooperate with the guide hole formed in step (7), and the precision forming of the helical internal spline is realized through rotary extrusion.
本发明的有益效果是：通过对现有汽车起动导向筒加工工艺的改进，使得汽车起动导向筒下部螺旋内花键成形加工的基准与汽车起动导向筒上部异型曲面型腔的轴线一致。有效提高了汽车起动导向筒上部异型曲面型腔与下部螺旋内花键加工时的同轴度。试验证明：采用本发明方法加工的零件，其上部异型曲面型腔与下部螺旋内花键的同轴度能减小到φ0.012mm以内。 The beneficial effects of the invention are: through the improvement of the existing processing technology of the automobile starting guide cylinder, the base of forming the helical inner spline at the lower part of the automobile starting guide cylinder is consistent with the axis of the special-shaped curved surface cavity at the upper part of the automobile starting guide cylinder. Effectively improves the coaxiality of the special-shaped curved surface cavity on the upper part of the automobile starting guide cylinder and the helical internal spline on the lower part. The test proves that: for the parts processed by the method of the invention, the coaxiality between the upper special-shaped curved surface cavity and the lower helical internal spline can be reduced to within φ0.012mm.
附图说明 Description of drawings
图1本发明工艺流程图。 Fig. 1 process flow chart of the present invention.
图2 本发明实施例产品形状变化过程图。 Fig. 2 is a diagram of the shape change process of the product according to the embodiment of the present invention.
图3 旋转冲头。 Figure 3 Rotary punch.
图4异型曲面型腔反挤冲头。 Fig. 4 Back-extrusion punch with special-shaped curved surface cavity.
具体实施方式 Detailed ways
以93汽车起动导向筒的加工过程为例，其工艺流程为： Taking the processing process of the 93 automobile starting guide cylinder as an example, the process flow is as follows:
1、锯料，选择直径为φ50mm的热轧圆棒料，材料牌号为20CrMo，控制下料长度为52mm-53mm之间。 1. For sawing material, choose a hot-rolled round bar with a diameter of φ50mm, the material grade is 20CrMo, and the cutting length is controlled between 52mm-53mm.
2、退火。将锯料加热780℃保温5-8小时，降温至710℃，保温5-8小时，随炉冷至350℃出炉空冷。 2. Annealing. Heat the saw material at 780°C for 5-8 hours, cool it down to 710°C, keep it for 5-8 hours, and then cool it to 350°C with the furnace and air-cool it.
3、制坯。将鸡心夹头装在工件的外圆一端后，用顶尖顶住两中心孔，粗车外圆直径至φ48.10mm-φ48.25mm之间并端部倒角2×45 ，再调头将鸡心夹头装在工件的外圆另外一端，用顶尖顶住两中心孔， 粗车另一端外圆直径至φ48.10mm-φ48.25mm之间并端部倒角2×45，外圆长度控制在51.0mm-51.3mm之间。 3. Blank making. After installing the chicken heart chuck on the outer end of the workpiece, use the top to withstand the two center holes, rough the outer circle diameter to φ48.10mm-φ48.25mm and chamfer the end 2×45 , then turn around and install the chicken heart chuck on the other end of the outer circle of the workpiece, use the top to withstand the two center holes, rough the outer circle diameter of the other end to φ48.10mm-φ48.25mm and chamfer the end 2×45 , The length of the outer circle is controlled between 51.0mm-51.3mm.
4、常规抛丸与磷皂化处理，以改进表面质量及润滑。 4. Conventional shot blasting and phosphorus saponification treatment to improve surface quality and lubrication.
5、正挤。上端外圆直径控制在φ48.5mm-φ48.8mm之间，长度控制在37.0mm-38.5mm之间。下端外圆直径控制在φ34.4mm-φ34.7mm之间，长度由坯料决定。 5. Squeezing. The outer diameter of the upper end is controlled between φ48.5mm-φ48.8mm, and the length is controlled between 37.0mm-38.5mm. The outer diameter of the lower end is controlled between φ34.4mm-φ34.7mm, and the length is determined by the blank.
6、镦粗。保证坯料上端外圆直径镦粗到φ59.5mm-φ59.8mm之间。 6. Upsetting. Ensure that the outer diameter of the upper end of the billet is upset to between φ59.5mm-φ59.8mm.
7、反挤异型曲面型腔及导向孔。导向孔直径为φ18mm，深度为12mm。 7. Back-extruded special-shaped curved surface cavity and guide hole. The diameter of the guide hole is φ18mm and the depth is 12mm.
8、基于导向孔旋转挤压螺旋内花键。旋转冲头导向部分插入导向孔中，随螺旋角旋转下行，直至挤至所需螺旋内花键有效长度大于28mm。 8. Rotate and extrude the helical inner spline based on the guide hole. The guide part of the rotary punch is inserted into the guide hole, and rotates down with the helix angle until the effective length of the spline in the required helix is greater than 28mm.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310291452.5A CN103341737B (en) | 2013-07-12 | 2013-07-12 | A kind of processing method improving the special-shaped chamber of starting guide cylinder and internal spline coaxiality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310291452.5A CN103341737B (en) | 2013-07-12 | 2013-07-12 | A kind of processing method improving the special-shaped chamber of starting guide cylinder and internal spline coaxiality |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103341737A CN103341737A (en) | 2013-10-09 |
| CN103341737B true CN103341737B (en) | 2015-08-05 |
Family
ID=49276586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310291452.5A Active CN103341737B (en) | 2013-07-12 | 2013-07-12 | A kind of processing method improving the special-shaped chamber of starting guide cylinder and internal spline coaxiality |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103341737B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103639675B (en) * | 2013-12-03 | 2016-07-06 | 盐城工学院 | The processing method of curve surface of raceway and shaping dies in freewheel clutch |
| CN103624502A (en) * | 2013-12-04 | 2014-03-12 | 江苏威鹰机械有限公司 | Cold-forging plastic molding technology of brake piston |
| CN104148888B (en) * | 2014-06-30 | 2016-06-29 | 宁波惠山汽配制造有限公司 | The cold extruding formation process of isolator splined sleeve |
| CN105478514B (en) * | 2016-01-08 | 2017-08-04 | 盐城工学院 | Composite extrusion punches for machining automotive starter guide cylinders |
| CN105642803B (en) * | 2016-01-08 | 2017-06-27 | 盐城工学院 | Composite extrusion processing method for automobile starting guide cylinder |
| CN108817866B (en) * | 2018-08-01 | 2021-04-02 | 宁波普泽机电有限公司 | Machining process of one-way sleeve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09271887A (en) * | 1996-04-08 | 1997-10-21 | Toyota Motor Corp | Method for forging multi-step inner groove member |
| CN101422861A (en) * | 2008-11-27 | 2009-05-06 | 江苏森威精锻有限公司 | Precision forming method for special-shaped deep hole parts |
| CN101648228A (en) * | 2009-08-27 | 2010-02-17 | 浙江拓进五金工具有限公司 | Multi-station cold extrusion molding method of sleeve |
| CN102335810A (en) * | 2011-08-19 | 2012-02-01 | 江苏森威精锻有限公司 | Method for forming precise slender internal spline tube |
| CN102689132A (en) * | 2012-06-11 | 2012-09-26 | 江苏森威精锻有限公司 | Method for improving jumping of rod part of inner spline shaft type forged piece |
| CN202560716U (en) * | 2012-04-28 | 2012-11-28 | 绵阳历泰机械制造有限公司 | Connecting rod assembly blind hole cold extrusion internal spline |
| CN202824207U (en) * | 2012-09-17 | 2013-03-27 | 江苏太平洋精锻科技股份有限公司 | Gear portion reforming of straight gear and bevel gear of blind hole and internal spline cold extruding die |
-
2013
- 2013-07-12 CN CN201310291452.5A patent/CN103341737B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09271887A (en) * | 1996-04-08 | 1997-10-21 | Toyota Motor Corp | Method for forging multi-step inner groove member |
| CN101422861A (en) * | 2008-11-27 | 2009-05-06 | 江苏森威精锻有限公司 | Precision forming method for special-shaped deep hole parts |
| CN101648228A (en) * | 2009-08-27 | 2010-02-17 | 浙江拓进五金工具有限公司 | Multi-station cold extrusion molding method of sleeve |
| CN102335810A (en) * | 2011-08-19 | 2012-02-01 | 江苏森威精锻有限公司 | Method for forming precise slender internal spline tube |
| CN202560716U (en) * | 2012-04-28 | 2012-11-28 | 绵阳历泰机械制造有限公司 | Connecting rod assembly blind hole cold extrusion internal spline |
| CN102689132A (en) * | 2012-06-11 | 2012-09-26 | 江苏森威精锻有限公司 | Method for improving jumping of rod part of inner spline shaft type forged piece |
| CN202824207U (en) * | 2012-09-17 | 2013-03-27 | 江苏太平洋精锻科技股份有限公司 | Gear portion reforming of straight gear and bevel gear of blind hole and internal spline cold extruding die |
Non-Patent Citations (1)
| Title |
|---|
| 螺旋内花键旋转挤压成型工艺与模具设计;王平;《模具工业》;20110315;第37卷(第3期);第53-55页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103341737A (en) | 2013-10-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103341737B (en) | A kind of processing method improving the special-shaped chamber of starting guide cylinder and internal spline coaxiality | |
| CN103934638B (en) | A kind of accurate external splines pipe manufacturing process | |
| CN104476146A (en) | Production process of automotive middle-rear axle transmission meshing sleeve | |
| CN103736734B (en) | Hot rolling CPE unit prepares the technique of the super 13Cr seamless steel pipe of high-chromium alloy | |
| CN102335810B (en) | Method for forming precise slender internal spline tube | |
| CN105127345A (en) | Production method of saloon car transmission combination gear ring | |
| CN105710620A (en) | Manufacturing process for conjunction-tooth gear of car transmission | |
| CN102601589A (en) | Process for manufacturing quincuncial dowel screws | |
| CN103706743A (en) | Die-forging forming process of titanium-alloy forged drum piece | |
| JP2012219931A (en) | Rack bar and method of manufacturing the same | |
| CN103447784A (en) | Driving shaft processing technique | |
| EP3257603B1 (en) | Method of manufacturing screw | |
| CN102554581A (en) | Manufacturing process of inner-hexagon cylindrical head shoulder screw | |
| CN103624205A (en) | Cold-forging plastic molding technology of precisely-forged brake threaded pipe component | |
| CN102922243A (en) | Integral stator processing method | |
| CN102728773A (en) | One-time cold-forging blocking forming method for inner star wheel | |
| CN105436372A (en) | Rotary forging manufacturing method for hollow shaft | |
| CN104191187A (en) | Energy-saving and high-efficiency processing method for gear shaft of door closer | |
| CN104588549B (en) | Multi-ring roll-forming method for thin ring parts | |
| CN102581211B (en) | Cold forming method for integral aluminum alloy pull rod of aircraft | |
| CN105642803B (en) | Composite extrusion processing method for automobile starting guide cylinder | |
| CN106269939A (en) | A kind of preparation method of aluminium alloy capillary tube | |
| CN103639675B (en) | The processing method of curve surface of raceway and shaping dies in freewheel clutch | |
| CN101716708A (en) | Method and device for annealing and rotary swaging multiplex composite rare-earth tungsten electrode | |
| CN105478514B (en) | Composite extrusion punches for machining automotive starter guide cylinders |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181212 Address after: 233010 Pioneering Building 316, Huineng Small and Micro Enterprises Pioneering Center, 1750 Shengli West Road, Yuhui District, Bengbu City, Anhui Province Patentee after: Bengbu Dingrong Science and Technology Information Consulting Co., Ltd. Address before: 224051 new campus of Yancheng Institute Of Technology, 9 hope road, Yancheng City, Jiangsu. Patentee before: Yangcheng Institute of Technology |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190605 Address after: 056000 No. 4 Handan Steel Road, Fuxing District, Handan City, Hebei Province Patentee after: Handan Taipute Auto Parts Manufacturing Co., Ltd. Address before: 233010 Pioneering Building 316, Huineng Small and Micro Enterprises Pioneering Center, 1750 Shengli West Road, Yuhui District, Bengbu City, Anhui Province Patentee before: Bengbu Dingrong Science and Technology Information Consulting Co., Ltd. |
|
| TR01 | Transfer of patent right |