CN104826970A - Flange disc forging and molding process - Google Patents
Flange disc forging and molding process Download PDFInfo
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- CN104826970A CN104826970A CN201510241315.XA CN201510241315A CN104826970A CN 104826970 A CN104826970 A CN 104826970A CN 201510241315 A CN201510241315 A CN 201510241315A CN 104826970 A CN104826970 A CN 104826970A
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- raw material
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- butt end
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Abstract
The invention provides a flange disc forging and molding process. The flange disc forging and molding process comprises the following steps: putting a raw material into a pre-molding mold; pressing to a maximum route by using a molding punch of a first oil press to roughly ram one end of the raw material; setting a movable punch on the end face of the rammed end of the raw material; the diameter of the first end of the movable punch is equal to the designed diameter of the rammed end of the raw material, and the end face is a plane used for being matched with the rammed end of the raw material; the diameter of the second end of the movable punch is greater than the designed diameter of the rammed end of the raw material; a groove matched with the molding punch of the first oil press is formed in the end face; the inner diameter of the groove is equal to the diameter of the molding punch of the first oil press. According to the flange disc forging and molding process provided by the invention, a half shaft with the greater diameter of the flange disc is pressed by using the oil press with a smaller tonnage, so that the production cost of a half shaft part is reduced and the whole vehicle cost is reduced.
Description
Technical field
The present invention relates to a kind of ring flange forging molding process, belong to casting technology field.
Background technology
The greatest diametrical dimension of ring flange can be subject to the restriction of device structure, tonnage.For 200 tons of pendulum mills, its ring flange maximum gauge that can have put is φ 240mm, and piece weight is at about 35Kg.When ring flange diameter is more than φ 240, when such as certain model needs φ 370mm, by theoretical demand equipment tonnage at least 3000 tons, and our factory only has the hydraulic press of maximum tonnage 1250 tons, and this is just considerably beyond existing equipment limit tonnage, when putting mill and being shaping, by pendulum mill tonnage, the pressure restriction that yaw bearing can bear, ring flange is shaping bad, ring flange cylindrical sharp corner can not put, misrun.Select large-tonnage equipment cost higher, with yaw bearing for 200 tons of pendulum mills, two mouthfuls of bearings are bearing designation 29364 (price 7000 yuan) and 29352 (prices 4000 yuan) respectively, if more than 30,000 yuan, import type 29364 bearing, within bearing 2-3 month, just change once; If directly purchase finished product large-diameter flange plates semiaxis (at present all for by imported from America), cost is also high, and and then increased integral vehicle cost.For above-mentioned situation, how to improve semiaxis forging molding process, realize the semiaxis utilizing the equipment forging molding ring flange diameter of less tonnage larger, reduce production cost, become the important technological problems that those skilled in the art are urgently to be resolved hurrily.
Summary of the invention
The invention provides a kind of ring flange forging molding process, the above defect can be overcome.
For solving above technical problem, the invention provides following technical scheme: a kind of crankshaft forging moulding process, comprises the steps:
Raw material is put into preforming tool, utilizes the forming punching head of the first hydraulic press to be pressed into range by thick for one end pier of raw material; Arrange movable ram at the end face of raw material pier butt end, the diameter of this movable ram first end equals the intended diameter of raw material pier butt end, and its end face is the plane coordinated for same raw material pier butt end; The diameter of the second end is greater than the intended diameter of raw material pier butt end, its end face offers the groove for the cooperation with the first hydraulic press forming punching head, the internal diameter of this groove equals the diameter of the first hydraulic press forming punching head, and the bottom land of groove is the plane for coordinating with the first hydraulic press forming punching head; Adopt the first hydraulic press to be pressed into its range, make the pier butt end of raw material shaping; The lower part of preformed die holder has downward projection, for holding the non-pier butt end of raw material; Preformed die holder lower part has the mounting plane contacting with hydraulic press operating platform and coordinate around projection, and the installation site of this projection is lower than the upper surface of hydraulic press operating platform; The length 1270mm of raw material, diameter 110, the intended diameter 370mm of ring flange; First hydraulic press adopts 500 tons of hydraulic presses, its maximum shut height 2050mm, range 900mm, the installation site hydraulic press operating platform 400mm of the lower lobes of preformed die holder; Second hydraulic press adopts 1250 tons of hydraulic presses.
Ring flange forging molding process provided by the invention, the larger semiaxis of ring flange diameter suppressed by the hydraulic press of the less tonnage of this technology utilization, reduces the production cost of semiaxis part, and then reduces integral vehicle cost.
Detailed description of the invention
A kind of crankshaft forging moulding process, comprises the steps:
Raw material is put into preforming tool, utilizes the forming punching head of the first hydraulic press to be pressed into range by thick for one end pier of raw material; Arrange movable ram at the end face of raw material pier butt end, the diameter of this movable ram first end equals the intended diameter of raw material pier butt end, and its end face is the plane coordinated for same raw material pier butt end; The diameter of the second end is greater than the intended diameter of raw material pier butt end, its end face offers the groove for the cooperation with the first hydraulic press forming punching head, the internal diameter of this groove equals the diameter of the first hydraulic press forming punching head, and the bottom land of groove is the plane for coordinating with the first hydraulic press forming punching head; Adopt the first hydraulic press to be pressed into its range, make the pier butt end of raw material shaping; The lower part of preformed die holder has downward projection, for holding the non-pier butt end of raw material; Preformed die holder lower part has the mounting plane contacting with hydraulic press operating platform and coordinate around projection, and the installation site of this projection is lower than the upper surface of hydraulic press operating platform; The length 1270mm of raw material, diameter 110, the intended diameter 370mm of ring flange; First hydraulic press adopts 500 tons of hydraulic presses, its maximum shut height 2050mm, range 900mm, the installation site hydraulic press operating platform 400mm of the lower lobes of preformed die holder; Second hydraulic press adopts 1250 tons of hydraulic presses.
Ring flange forging molding process provided by the invention, the larger semiaxis of ring flange diameter suppressed by the hydraulic press of the less tonnage of this technology utilization, reduces the production cost of semiaxis part, and then reduces integral vehicle cost.
Detailed description of the invention of the present invention does not form the restriction to the application's scope; within every spirit in the present invention's design and principle, any amendment that one of skill in the art can make, equivalent to replace and improvement etc. all should be included within protection scope of the present invention.
Claims (1)
1. a ring flange forging molding process, is characterized in that, comprises the steps:
Raw material is put into preforming tool, utilizes the forming punching head of the first hydraulic press to be pressed into range by thick for one end pier of raw material; Arrange movable ram at the end face of raw material pier butt end, the diameter of this movable ram first end equals the intended diameter of raw material pier butt end, and its end face is the plane coordinated for same raw material pier butt end; The diameter of the second end is greater than the intended diameter of raw material pier butt end, its end face offers the groove for the cooperation with the first hydraulic press forming punching head, the internal diameter of this groove equals the diameter of the first hydraulic press forming punching head, and the bottom land of groove is the plane for coordinating with the first hydraulic press forming punching head; Adopt the first hydraulic press to be pressed into its range, make the pier butt end of raw material shaping; The lower part of preformed die holder has downward projection, for holding the non-pier butt end of raw material; Preformed die holder lower part has the mounting plane contacting with hydraulic press operating platform and coordinate around projection, and the installation site of this projection is lower than the upper surface of hydraulic press operating platform; The length 1270mm of raw material, diameter 110, the intended diameter 370mm of ring flange; First hydraulic press adopts 500 tons of hydraulic presses, its maximum shut height 2050mm, range 900mm, the installation site hydraulic press operating platform 400mm of the lower lobes of preformed die holder; Second hydraulic press adopts 1250 tons of hydraulic presses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510241315.XA CN104826970A (en) | 2015-05-13 | 2015-05-13 | Flange disc forging and molding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510241315.XA CN104826970A (en) | 2015-05-13 | 2015-05-13 | Flange disc forging and molding process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104826970A true CN104826970A (en) | 2015-08-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510241315.XA Pending CN104826970A (en) | 2015-05-13 | 2015-05-13 | Flange disc forging and molding process |
Country Status (1)
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| CN (1) | CN104826970A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1095651A (en) * | 1993-12-30 | 1994-11-30 | 王向阳 | The forging method of semiaxis and split-die thereof behind the full-plastic automotive |
| JPH11254079A (en) * | 1998-03-16 | 1999-09-21 | Mitsubishi Motors Corp | Forging die device |
| CN101947634A (en) * | 2010-09-03 | 2011-01-19 | 东风汽车有限公司 | Forging process for flange of half shaft of automobile rear axle |
| CN102284669A (en) * | 2011-06-19 | 2011-12-21 | 江苏森威精锻有限公司 | Precise forming process of flange shaft |
| CN104084514A (en) * | 2014-07-10 | 2014-10-08 | 吉林圆方机械集团有限公司 | Half axle forging forming technology |
-
2015
- 2015-05-13 CN CN201510241315.XA patent/CN104826970A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1095651A (en) * | 1993-12-30 | 1994-11-30 | 王向阳 | The forging method of semiaxis and split-die thereof behind the full-plastic automotive |
| JPH11254079A (en) * | 1998-03-16 | 1999-09-21 | Mitsubishi Motors Corp | Forging die device |
| CN101947634A (en) * | 2010-09-03 | 2011-01-19 | 东风汽车有限公司 | Forging process for flange of half shaft of automobile rear axle |
| CN102284669A (en) * | 2011-06-19 | 2011-12-21 | 江苏森威精锻有限公司 | Precise forming process of flange shaft |
| CN104084514A (en) * | 2014-07-10 | 2014-10-08 | 吉林圆方机械集团有限公司 | Half axle forging forming technology |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150812 |
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| RJ01 | Rejection of invention patent application after publication |