CN101229614B - Method of manufacturing straight-tooth bevel gear finish forge mould - Google Patents
Method of manufacturing straight-tooth bevel gear finish forge mould Download PDFInfo
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- CN101229614B CN101229614B CN2008100207730A CN200810020773A CN101229614B CN 101229614 B CN101229614 B CN 101229614B CN 2008100207730 A CN2008100207730 A CN 2008100207730A CN 200810020773 A CN200810020773 A CN 200810020773A CN 101229614 B CN101229614 B CN 101229614B
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Abstract
The invention discloses a method for manufacturing a fine forging die for a straight gear and a bevel gear. The method comprises the steps of rough shape processing and precise shape processing which are implemented in sequence. The precise shape processing is realized by the following steps: (1) a gear electrode used in the rough shape processing is transformed into a die model and a processing code is regenerated; (2) a die blank after processed by the rough shape processing is positioned a high-speed processing center; (3) micro machining is implemented according to the processing code on the high-speed processing center until the precise shape of the die model is formed. The invention implements the die shape processing by two steps according to the same positioning reference and the manufactured fine forging die for the straight gear and the bevel gear has high precision, good forming, short manufacture period and low manufacture cost, thus, the method of the invention is in particular applicable to batch production of the dies.
Description
Technical field
The present invention relates to a kind of mould manufacturing method of forging with the manufacture method, particularly a kind of precision forging gear of mould.
Background technology
Gear is the mating engagement series products, its odontoid and precision decision engaged transmission quality.Straight bevel gear in the automotive rear axle differential gear is the part that directly transmits dynamic torque, except that satisfying shape and required precision, also enough intensity will be arranged.Otherwise, will influence vehicle transmission mechanism quality and vehicle safety.Current era, the manufacture method of straight bevel gear mainly contain metal cutting forming process and precision forging forming process.Because precision forging makes the gear metal structure fine and close more, and do not destroy characteristics such as metal streamline and obtain extensive use.The key of precision forging gear is the design and the manufacturing of finish forge mould.Prior art is made the straight bevel gear precision forging die and is mainly contained two kinds of methods:
First method: at first the design parameter by processed gear processes qualified a pair of gear electrode on gear shaper or high-speed machining center, utilize then the gear electrode on spark-erosion machine tool to the processing of discharging of mould base, removal is answered cutting material and is obtained gear die, coarse because of the die surface that spark-erosion machine tool processes, to carry out polishing to machined surface at last.
Second method: directly set up the mold former of this gear according to processed gear parameter, generate machining code, directly process gear die at high-speed machining center.
Above-mentioned two kinds of prior aries can both produce the precision forging gear die, but all come with some shortcomings, some in addition precision forging gear die workmanship had negative effect.For example, first method consequently reduces the mould accuracy of manufacture because of the gear electrode self has micro-loss in the discharge process.In addition, finished surface forms metamorphic layer because of galvanic corrosion, and there is residual stress in the surface, and the machined surface roughness is big, and follow-up polishing not only consumes man-hour, has also reduced the accuracy of manufacture of mould.Although second method machining accuracy height, manufacturing cost is big, increases manufacturing cost because of tool wear when particularly processing high rigidity mould steel.
Summary of the invention
The present invention is primarily aimed at the deficiencies in the prior art, proposes a kind of low processing cost, molding efficient height, mould and die accuracy height, the measured method of manufacturing straight-tooth bevel gear finish forge mould of morphoplasm.
The present invention is achieved through the following technical solutions technical goal.
Method of manufacturing straight-tooth bevel gear finish forge mould, this method comprise dumming processing and the smart processing that is shaped that order is implemented.Described dumming processing comprises the following steps: at first to set up the electrode model of straight bevel gear, generates machining code A; On high-speed machining center, process the electrode of straight bevel gear then by machining code A; Utilize the mould base processing of discharging to the location on spark-erosion machine tool of this electrode again.Its improvements are: described smart forming and machining method is realized according to the following steps: the gear electrode that (1) processes usefulness with dumming converts mold former to, regenerates machining code B; (2) the mould base of dumming processing is positioned at high-speed machining center; (3) on high-speed machining center, press machining code B and implement micro cutting to the mold former Accurate Shaping.
Technique scheme organically combines two kinds of multi-form processing methods, promptly under the base condition of same location, implements the mould preliminarily forming with spark-erosion machine tool respectively, implements the smart processing that is shaped of mould with high-speed machining center.Dumming processing is born and should be removed 92～96% of material.The smart processing that is shaped bear remaining 4～8% should remove material.
The present invention compared with prior art has following good effect:
Under the benchmark of same location, implement die forming processing in two steps, make full use of the technical advantage of different processing methods, constitute the straight bevel gear mould manufacturing method that is better than prior art.Adopt straight bevel gear mould and die accuracy height that this method makes, be shaped, the duration is short and cost of manufacture is low, and the smart processing that is shaped is got rid of spark-erosion sinking and is added the metamorphic layer that stays man-hour, effectively reduce the residual stress on the Mould Machining face, the service life of improving mould.
The specific embodiment
The invention will be further described below in conjunction with embodiment.
Method of manufacturing straight-tooth bevel gear finish forge mould, this method comprise dumming processing and the smart processing that is shaped that order is implemented.The processing of described dumming comprises the following steps: that (1) set up the electrode model of straight bevel gear, generates machining code A; (2) on high-speed machining center, process the electrode of straight bevel gear by machining code A; (3) utilize the mould base processing of discharging to the location on spark-erosion machine tool of this electrode.By electrode discharge processing remove 92～96% should remove material, realize the processing of mould dumming.Dumming processing is born and should be removed 95% of material in the present embodiment, that is to say on the low spark-erosion machine tool of operating cost and finishes the processing that mainly should remove material.The present invention by high-speed machining center finish stay 5% should remove materials processing, the smart concrete steps that are shaped processing are: convert the straight bevel gear electrode model to mold former, regenerate machining code B, then, the mould base of dumming processing is located on same benchmark, on high-speed machining center, press machining code and implement the smart processing that is shaped of mould.
The present invention implements die forming processing in two steps under the benchmark of same location, make full use of the technical advantage of different processing methods, reasonably implement dumming processing and the smart processing that is shaped step by step, create the method for manufacturing straight-tooth bevel gear finish forge mould that is better than prior art.The straight bevel gear precision forging die precision height that adopts this method to make, be shaped, the duration is short and cost of manufacture is low, and the smart processing that is shaped gets rid of spark-erosion sinking and adds the metamorphic layer that stays man-hour, effectively reduces the residual stress on the Mould Machining face, improves the service life of mould.
On distinct device, implement dumming processing step by step and the smart processing that is shaped is method innovation, dumming processing and smart be shaped add rationally share different amounts man-hour should remove the materials processing task, be the technical guarantee measure that realizes that smart shaping is processed.If the dumming processing capacity is greater than removing 96% of quantity of material, the smart processing that is shaped can not all be got rid of spark-erosion sinking and be added the metamorphic layer that stays man-hour, and the Mould Machining face retains residual stress, is unfavorable for die life.If smart shaping processing capacity less than removing 92% of quantity of material, then because of tool wear increases die manufacturing cost, also increases the mould manufacturing schedule simultaneously.The present invention pays the utmost attention to dumming processing and bears the processing tasks that should remove material more under the high situation of mold materials hardness, promptly selects upper limit desired value for use.Otherwise, then select the lower limit desired value for use.
Claims (3)
1. method of manufacturing straight-tooth bevel gear finish forge mould, this method comprise dumming processing and the smart processing that is shaped that order is implemented; Described dumming processing comprises the following steps: at first to set up the electrode model of straight bevel gear, generates machining code A; On high-speed machining center, process the electrode of straight bevel gear then by machining code A; Utilize the mould base processing of discharging to the location on spark-erosion machine tool of this electrode again; It is characterized in that: described smart forming and machining method is realized according to the following steps:
(1) the gear electrode of dumming being processed usefulness converts mold former to, regenerates machining code B;
(2) the mould base of dumming processing is positioned at high-speed machining center;
(3) on high-speed machining center, press machining code B and implement micro cutting to the mold former Accurate Shaping.
2. method of manufacturing straight-tooth bevel gear finish forge mould according to claim 1 is characterized in that: the location benchmark unanimity of described mould base on the location of high-speed machining center benchmark coexists spark-erosion machine tool.
3. method of manufacturing straight-tooth bevel gear finish forge mould according to claim 1 is characterized in that: described dumming processing is born and should be removed 92～96% of material; The described smart processing that is shaped bear remaining 4～8% should remove material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100207730A CN101229614B (en) | 2008-02-26 | 2008-02-26 | Method of manufacturing straight-tooth bevel gear finish forge mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100207730A CN101229614B (en) | 2008-02-26 | 2008-02-26 | Method of manufacturing straight-tooth bevel gear finish forge mould |
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| Publication Number | Publication Date |
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| CN101229614A CN101229614A (en) | 2008-07-30 |
| CN101229614B true CN101229614B (en) | 2010-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100207730A Active CN101229614B (en) | 2008-02-26 | 2008-02-26 | Method of manufacturing straight-tooth bevel gear finish forge mould |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103567765B (en) * | 2013-11-25 | 2016-08-17 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of K465 alloy isothermal forging die processing method |
| CN112935175A (en) * | 2021-02-01 | 2021-06-11 | 昆山众诚精密锻造有限公司 | High-precision gear forging process for automobile air conditioner compressor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88211057U (en) * | 1988-02-01 | 1988-08-31 | 南京航空学院 | Manufacturing device for electromachining electrodes used in the fabrication of small-module gears forging dies |
| CN1055132A (en) * | 1990-03-26 | 1991-10-09 | 洛阳工学院 | The processing method of dies for precise fooge of bevel gears and device |
| US5796062A (en) * | 1996-02-21 | 1998-08-18 | Asahi Kogaku Kogyo Kabushiki Kaisha | Method for producing molding die for synthetic resin lens barrel having a helicoid and for producing the lens barrel |
| CN1528556A (en) * | 2003-10-19 | 2004-09-15 | 潘伟润 | Method for manufacturing automobile tyre mould |
| US6799371B2 (en) * | 2002-08-14 | 2004-10-05 | Yu-Ren Liu | Method for manufacturing a steel tire mold |
| CN1548268A (en) * | 2003-05-23 | 2004-11-24 | 鸿富锦精密工业（深圳）有限公司 | Model kernel making process |
-
2008
- 2008-02-26 CN CN2008100207730A patent/CN101229614B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88211057U (en) * | 1988-02-01 | 1988-08-31 | 南京航空学院 | Manufacturing device for electromachining electrodes used in the fabrication of small-module gears forging dies |
| CN1055132A (en) * | 1990-03-26 | 1991-10-09 | 洛阳工学院 | The processing method of dies for precise fooge of bevel gears and device |
| US5796062A (en) * | 1996-02-21 | 1998-08-18 | Asahi Kogaku Kogyo Kabushiki Kaisha | Method for producing molding die for synthetic resin lens barrel having a helicoid and for producing the lens barrel |
| US6799371B2 (en) * | 2002-08-14 | 2004-10-05 | Yu-Ren Liu | Method for manufacturing a steel tire mold |
| CN1548268A (en) * | 2003-05-23 | 2004-11-24 | 鸿富锦精密工业（深圳）有限公司 | Model kernel making process |
| CN1528556A (en) * | 2003-10-19 | 2004-09-15 | 潘伟润 | Method for manufacturing automobile tyre mould |
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| CN101229614A (en) | 2008-07-30 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Manufacturing method of precision forging die for straight bevel gears Effective date of registration: 20230719 Granted publication date: 20100616 Pledgee: Bank of Communications Co.,Ltd. Taizhou Branch Pledgor: Jiangsu Airship Gear Corp. Registration number: Y2023320000378 |
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