CN105728618A - Technological method for net shape forming forging of engagement sleeve end teeth - Google Patents
Technological method for net shape forming forging of engagement sleeve end teeth Download PDFInfo
- Publication number
- CN105728618A CN105728618A CN201610164897.0A CN201610164897A CN105728618A CN 105728618 A CN105728618 A CN 105728618A CN 201610164897 A CN201610164897 A CN 201610164897A CN 105728618 A CN105728618 A CN 105728618A
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- CN
- China
- Prior art keywords
- forging
- end tooth
- hot
- mould
- engaging sleeve
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
Abstract
The invention discloses a technological method for net shape forming forging of engagement sleeve end teeth. According to an engagement sleeve product picture, a cold-state part three-dimensional entity is generated, forging materials of a forge piece are selected, and the hot-state entity forging piece is converted into an entity model of a hot-state end tooth upper die; heat treatment is carried out on the entity model of the hot-state end tooth upper die, and then the end teeth are subjected to finish milling after heat treatment; the end tooth upper die, a concave die and an ejector rod are assembled and fastened to forging equipment, and the dies are preheated to 200-260 DEG C; rod materials qualified after saw cutting are heated to the temperature needed by forging, and the rod materials reaching the forging temperature are put into the concave die and subjected to one-time punching forging formation; and after formation is completed, the ejector rod is started, the hot-state forging piece of an engagement sleeve is ejected out of the concave die and taken out manually or through a manipulator, and accordingly the one-time net shaping forming forging procedure of the engagement sleeve end teeth is completed. The technological method for net shape forming forging of the engagement sleeve end teeth improves efficiency, saves raw materials, and prolongs the service life of the engagement sleeve.
Description
Technical field
The present invention relates to the process of a kind of forging, only become the process of shape forging particularly to a kind of engaging sleeve end tooth.
Background technology
Engaging sleeve is the vital part in vehicle drive system, and no matter the twin-stage bridge of vehicle or single-stage bridge, more or less have fixing or slidably engage set, playing vital effect inside it；External engaging sleeve produces and adopts precision forging already, but the domestic limitation by Forging Technology and various condition, market has been used up the engaging sleeve of cutting end tooth.Traditional engaging sleeve processing technique, is with bar or forging stock, and after Vehicle Processing outline, broaching internal spline, milling engaging sleeve end tooth, through carburizing and quenching and Shot Blasting after, packaging mails to user for assembling；This kind of technique, milling efficiency is relatively low, and the knuckle of end tooth tooth side, chamfering, and Milling Process difficulty is big, efficiency is also extremely low, and cutter consumption is higher, and final individual plants finished product is at after market, and claim rate is higher, causes terminal market complaint extremely many.
Summary of the invention
It is an object of the invention to provide and a kind of after clean one-tenth shape forging, no longer carry out machining, not only increase efficiency, saved raw material and improve the engaging sleeve end tooth in the service life of engaging sleeve and only become the process of shape forging.
A kind of engaging sleeve end tooth becomes the process of shape forging only, including the disposable clean shaping forging process of end tooth upper die forming operation and engaging sleeve end tooth:
On described end tooth, contour forming operation comprises the following steps: a1, the engaging sleeve product figure provided according to client, carry out the 3-D Moulding Design of part, generating the part 3D solid of cold conditions, the demand in conjunction with Forging Technology and process for machining adds surplus at outline and rear end face reserving machine；B1, choose the forged material of forging, according to the linear expansion coefficient of this material and forging temperature, calculate temperature required in disposable clean molding Forging Technology under the shrinkage factor of forging；C1, shrinkage factor in conjunction with forging, expand cold conditions forging, generate hot entity forging, and become the solid modelling of mould on hot end tooth by hot entity forging reincarnation；D1, according to the solid modelling of mould on the hot end tooth generated, through programming, mould part on end tooth is first carried out rough milling end tooth by CNC milling machine, again mould part on end tooth is carried out heat treatment, carry out finish-milling processing end tooth after heat treatment, so far, complete the forming process of mould on hot end tooth.
Described disposable clean shaping forging process comprises the following steps: a2, mould on end tooth, die, push rod are assembled, are anchored on forging equipment, according to mould program ver-ify upper and lower mould concentricity；Mould is carried out the pre-heat treatment, by mould and die preheating to 200 ° ~ 260 ° after meeting the requirements by b2, verification；C2, bar qualified for sawing is placed in Medium Frequency Induction Heating Furnace and heats, heat temperature required to forging, according to the processing of forging equipment forging frequency, the loading frequency of Reasonable adjustment bar；D2, adjust forging equipment hitting power, the bar being up to forging temperature is placed in die, starting device, and bar carries out disposable strike forging and molding；E2, shaped after, in forging equipment reseting procedure, start push rod, hot for engaging sleeve forging is ejected die, and utilizes manually or mechanically hands to take the hot forging of engaging sleeve away, so far complete the disposable clean shaping forging process of engaging sleeve end tooth.
Further, the material of described forging is 20CrMnTiH or 22CrMoH, and described linear expansion coefficient is 14 × 10-6, described forging temperature is 950～1000 degree, and described shrinkage factor is 1.0133～1.014.
The present invention is the process that a kind of engaging sleeve end tooth becomes shape forging only, and it has the beneficial effect that
A kind of engaging sleeve end tooth of the present invention becomes the process of shape forging only, improve engaging sleeve production efficiency, reduce the production cost of this product, particularly cutter consumption, improve the intensity of end tooth, the overall service life promoting engaging sleeve simultaneously, reach the manufacture material-saving of engaging sleeve end tooth, efficiently and less destroy the metallic fiber flow direction of material, and then reach to promote the intensity of end tooth, the overall service life promoting engaging sleeve；Engaging sleeve end tooth only become shape forging, it is possible to improve end tooth dense internal organization degree, change end tooth metal streamline direction, improve the distribution of forging carbide, eliminate anisotropy, in the hope of obtaining required interior tissue and serviceability.
Accompanying drawing explanation
Fig. 1 is the structural representation that a kind of engaging sleeve end tooth of the present invention becomes the position relationship on the end tooth in the process of shape forging between mould, die, push rod only.
Fig. 2 is the structural representation that a kind of engaging sleeve end tooth of the present invention becomes the front of the finished product of the process of shape forging only.
Fig. 3 is the structural representation that a kind of engaging sleeve end tooth of the present invention becomes the cutting plane of the A-A in Fig. 2 of the process of shape forging only.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described:
As it is shown in figure 1, a kind of engaging sleeve end tooth becomes the process of shape forging only, including the disposable clean shaping forging process of contour forming operation on end tooth and engaging sleeve end tooth:
On described end tooth, contour forming operation comprises the following steps: a1, the engaging sleeve product figure provided according to client, carry out the 3-D Moulding Design of part, generating the part 3D solid of cold conditions, the demand in conjunction with Forging Technology and process for machining adds surplus at outline and rear end face reserving machine；B1, choose forged material 20CrMnTiH or 22CrMoH of forging, be 14 × 10 according to the linear expansion coefficient of this material-6And forging temperature 950～1000 degree, calculate temperature required in disposable clean molding Forging Technology under the shrinkage factor of forging be 1.0133～1.014；C1, shrinkage factor in conjunction with forging, expand cold conditions forging, generate hot entity forging, and become the solid modelling of mould on hot end tooth by hot entity forging reincarnation；D1, according to the solid modelling of mould on the hot end tooth generated, through programming, mould part on end tooth is first carried out rough milling end tooth by CNC milling machine, again mould part on end tooth is carried out heat treatment, carry out finish-milling processing end tooth after heat treatment, so far, complete the forming process of mould 1 on hot end tooth；Described disposable clean shaping forging process comprises the following steps: a2, mould on end tooth 1, die 2, push rod 3 are assembled, are anchored on forging equipment, according to mould program ver-ify upper and lower mould concentricity；Mould is carried out the pre-heat treatment, by mould and die preheating to 200 ° ~ 260 ° after meeting the requirements by b2, verification；C2, bar qualified for sawing is placed in Medium Frequency Induction Heating Furnace and heats, heat temperature required to forging, according to the processing of forging equipment forging frequency, the loading frequency of Reasonable adjustment bar；D2, adjust forging equipment hitting power, the bar being up to forging temperature is placed in die 2, starting device, and bar carries out disposable strike forging and molding；E2, shaped after, in forging equipment reseting procedure, start push rod 3, hot for engaging sleeve forging is ejected die 2, and utilizes manually or mechanically hands to take the hot forging of engaging sleeve away, so far complete the disposable clean shaping forging process of engaging sleeve end tooth.
The embodiment of the above, simply presently preferred embodiments of the present invention, and unrestricted the scope of the present invention, therefore all equivalence changes done according to the structure described in the scope of the claims of the present invention, feature and principle or modify, all should be included in the present patent application the scope of the claims.
Claims (2)
1. an engaging sleeve end tooth becomes the process of shape forging only, it is characterised in that include the disposable clean molding forging process of end tooth upper die forming operation and engaging sleeve end tooth:
On described end tooth, contour forming operation comprises the following steps: a1, the engaging sleeve product figure provided according to client, carry out the 3-D Moulding Design of part, generating the part 3D solid of cold conditions, the demand in conjunction with Forging Technology and process for machining adds surplus at outline and rear end face reserving machine；B1, choose the forged material of forging, according to the linear expansion coefficient of this material and forging temperature, calculate temperature required in disposable clean molding Forging Technology under the shrinkage factor of forging；C1, shrinkage factor in conjunction with forging, expand cold conditions forging, generate hot entity forging, and become the solid modelling of mould on hot end tooth by hot entity forging reincarnation；D1, according to the solid modelling of mould on the hot end tooth generated, through programming, mould part on end tooth is first carried out rough milling end tooth by CNC milling machine, again mould part on end tooth is carried out heat treatment, carry out finish-milling processing end tooth after heat treatment, so far, complete the forming process of mould on hot end tooth；
Described disposable clean shaping forging process comprises the following steps: a2, mould on end tooth, die, push rod are assembled, are anchored on forging equipment, according to mould program ver-ify upper and lower mould concentricity；Mould is carried out the pre-heat treatment, by mould and die preheating to 200 ° ~ 260 ° after meeting the requirements by b2, verification；C2, bar qualified for sawing is placed in Medium Frequency Induction Heating Furnace and heats, heat temperature required to forging, according to the processing of forging equipment forging frequency, the loading frequency of Reasonable adjustment bar；D2, adjust forging equipment hitting power, the bar being up to forging temperature is placed in die, starting device, and bar carries out disposable strike forging and molding；E2, shaped after, in forging equipment reseting procedure, start push rod, hot for engaging sleeve forging is ejected die, and utilizes manually or mechanically hands to take the hot forging of engaging sleeve away, so far complete the disposable clean shaping forging process of engaging sleeve end tooth.
2. engaging sleeve end tooth according to claim 1 becomes the process of shape forging only, it is characterised in that the material of described forging is 20CrMnTiH or 22CrMoH, and described linear expansion coefficient is 14 × 10-6, described forging temperature is 950～1000 degree, and described shrinkage factor is 1.0133～1.014.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610164897.0A CN105728618B (en) | 2016-03-22 | 2016-03-22 | A kind of net process into shape forging of engaging sleeve end tooth |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610164897.0A CN105728618B (en) | 2016-03-22 | 2016-03-22 | A kind of net process into shape forging of engaging sleeve end tooth |
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| CN105728618A true CN105728618A (en) | 2016-07-06 |
| CN105728618B CN105728618B (en) | 2017-09-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110026514A (en) * | 2019-03-19 | 2019-07-19 | 洛阳福瑞可汽车零部件有限公司 | A kind of active triple gear cone tooth shapes the process of closed-die forging with end tooth only simultaneously |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000117389A (en) * | 1998-10-19 | 2000-04-25 | Daido Steel Co Ltd | Gear forging method by vertical type press machine |
| CN102240774A (en) * | 2011-06-02 | 2011-11-16 | 重庆创精温锻成型有限公司 | Fine forging forming method of spiral bevel gears |
| CN102489978A (en) * | 2011-12-04 | 2012-06-13 | 北京机电研究所 | Hot and cold composite precision forging forming method of great-modulus high-thickness straight-tooth cylindrical gear |
| CN105081179A (en) * | 2015-09-28 | 2015-11-25 | 四川联茂机械制造有限公司 | Machining process for engagement sleeve hollow pipe and machining die |
-
2016
- 2016-03-22 CN CN201610164897.0A patent/CN105728618B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000117389A (en) * | 1998-10-19 | 2000-04-25 | Daido Steel Co Ltd | Gear forging method by vertical type press machine |
| CN102240774A (en) * | 2011-06-02 | 2011-11-16 | 重庆创精温锻成型有限公司 | Fine forging forming method of spiral bevel gears |
| CN102489978A (en) * | 2011-12-04 | 2012-06-13 | 北京机电研究所 | Hot and cold composite precision forging forming method of great-modulus high-thickness straight-tooth cylindrical gear |
| CN105081179A (en) * | 2015-09-28 | 2015-11-25 | 四川联茂机械制造有限公司 | Machining process for engagement sleeve hollow pipe and machining die |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110026514A (en) * | 2019-03-19 | 2019-07-19 | 洛阳福瑞可汽车零部件有限公司 | A kind of active triple gear cone tooth shapes the process of closed-die forging with end tooth only simultaneously |
| CN110026514B (en) * | 2019-03-19 | 2024-01-30 | 洛阳福瑞可汽车零部件有限公司 | Process method for simultaneously net forming closed forging of driving triple gear bevel gear and end gear |
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| Publication number | Publication date |
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| CN105728618B (en) | 2017-09-22 |
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