CN105081156A - One-time molding cross wedge rolling mold of gear shaft - Google Patents
One-time molding cross wedge rolling mold of gear shaft Download PDFInfo
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- CN105081156A CN105081156A CN201510271867.5A CN201510271867A CN105081156A CN 105081156 A CN105081156 A CN 105081156A CN 201510271867 A CN201510271867 A CN 201510271867A CN 105081156 A CN105081156 A CN 105081156A
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- gear shaft
- cross wedge
- wedge rolling
- section
- die
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Abstract
The invention relates to the technical field of gear shaft machining, and in particular to a one-time molding cross wedge rolling mold of a gear shaft. The one-time molding cross wedge rolling mold structurally comprises a mold body arranged outside an upper shaft roll and a lower shaft roll of a cross wedge rolling mill. The mold body comprises a step shaft molding part, a gear shape molding part, a shaping part and a cutoff part. The step shaft molding part is composed of four arc-shaped modules, cavities used for molding of all step shafts of the gear shaft are machined in the outer surfaces of the arc-shaped modules, and the cavities comprise wedging segments, widening segments, molding segments and cutoff segments. According to the one-time molding cross wedge rolling mold of the gear shaft, based on the principles of cross wedge rolling and cross rolling, all steps of the gear shaft can be molded, and the gear shape of the gear shaft can also be molded.
Description
Technical field
The present invention relates to gear shaft processing technique field, particularly a kind of one-shot forming cross wedge rolling die of gear shaft.
Background technology
Gear shaft processing under prior art, its method generally adopts lathe to process, but use lathe process technique loaded down with trivial details, and it is larger to wastage of material, there is the technique adopting cross wedge rolling rolling gear shaft at present, but during traditional cross wedge rolling die rolling gear shaft, can only Step Shaft be rolled into, and can not by the profile of tooth roll forming of gear shaft, this just brings the deficiency in working (machining) efficiency.
Summary of the invention
In order to solve the problem of prior art, the invention provides a kind of one-shot forming cross wedge rolling die of gear shaft, it utilizes the principle of cross wedge rolling and transverse rolling, not only can each step of formed tooth wheel shaft, and can the profile of tooth of formed tooth wheel shaft.
The technical solution adopted in the present invention is as follows:
A kind of one-shot forming cross wedge rolling die of gear shaft, comprise the die ontology be arranged at outside the upper and lower beaming roller of cross wedge rolling milling train, die ontology comprises Step Shaft shaped portion, flute profile shaped portion, shaping unit and cut-off parts, wherein, described Step Shaft shaped portion is made up of four pieces of arc module, described arc module outer surface is processed with the die cavity for each Step Shaft of formed tooth wheel shaft, and described die cavity comprises wedging section, broadening section, shaped segment and cut-out section.
If the circumference of gear shaft does not need the shaping of the cylindrical section of shaping profile of tooth, the shape of shape and its every section of its type groove is corresponding.
If circumference is with gear teeth type, the type groove shape of this section is amassed equal principle according to this segment body and is widened shaping gradually.
The broadening angle of broadening section is 8.5 °.
The forming angle of shaped segment is 30 °.
Flute profile shaped portion is in the mold cavity part of the correspondence of the shaping flute profile of needs, according to castellated shape from shallow to deep process corresponding gear flute profile shape, the die length required for from incipient shallow shape to required shape is the circumferential length of this corresponding part.
Plastic section length is that profile of tooth reference circle launches girth.
The beneficial effect that technical scheme provided by the invention is brought is:
Mould of the present invention is the principle utilizing cross wedge rolling and transverse rolling, rely on the Step Shaft shaped portion on mould, each step of direct transverse rolling formed tooth wheel shaft, utilize the profile of tooth of other parts direct forming gear shaft simultaneously, make the processing of gear shaft can utilize cross wedge rolling one-shot forming, need the situation of multiple kinds of molds multi-step process processing and fabricating gear shaft under avoiding prior art, improve production efficiency, decrease raw-material waste, and once can make two gear shafts.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the overall structure schematic diagram of the one-shot forming cross wedge rolling die of a kind of gear shaft of the present invention;
Fig. 2 is that the A-A of Fig. 1 is to structure sectional view;
Fig. 3 is that the B-B of Fig. 1 is to structure sectional view;
Fig. 4 is that the C-C of Fig. 1 is to structure sectional view.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment one
As shown in accompanying drawing 1-4, a kind of one-shot forming cross wedge rolling die of gear shaft, comprise the die ontology be arranged at outside the upper and lower beaming roller of cross wedge rolling milling train, die ontology comprises Step Shaft shaped portion 1, flute profile shaped portion 2, shaping unit 3 and cut-off parts 4, wherein, described Step Shaft shaped portion 1 is made up of four pieces of arc module, described arc module outer surface is processed with the die cavity for each Step Shaft of formed tooth wheel shaft, and described die cavity comprises wedging section, broadening section, shaped segment and cut-out section.
The mould of the present embodiment is mainly arranged on two roller cross wedge rolling machine, for the cross wedge rolling forming technique with gear shaft profile of tooth.It is primarily of four major part compositions:
Part I: Step Shaft shaped portion 1.This part is combined (about 8 pieces each 4 pieces, this mould) by multiple arc module totally, on the arc-shaped outer surface that polylith is combined into, be processed with the type groove for each Step Shaft of formed tooth wheel shaft, the shape of type groove is divided into two parts, a kind of shaping (shown in Fig. 1 top) being the circumference of axle and not needing the cylindrical section of shaping profile of tooth, the shape of shape and its every section of its type groove is corresponding.What another kind of type groove was corresponding is circumference is with gear teeth type, and this segment type flute profile dress amasss equal principle according to this segment body and widens shaping gradually.
This shaped portion is divided into wedging section, broadening section, shaped segment and cuts off the compositions such as section.The broadening angle of this part is 8.5 °, and forming angle is 30 °.The distance of its two Front cutting tool is the length of required part.
Part II; For flute profile shaped portion 2.This part is in the mold cavity part of the correspondence of the shaping flute profile of needs, corresponding gear flute profile shape is processed to dark according to castellated shape is shallow again, from incipient shallow shape to required shape, consistent required die length is the circumferential length of this corresponding part, as shown in Figure 3.
Part III: be shaping unit 3.After profile of tooth is shaped substantially, have one section of plastic section, this section mainly in order to meet further, set up by castellated shape and size, and this segment length is that profile of tooth reference circle launches girth.
Part IV: cut-off parts 4.This mould is a rolling two pieces, and therefore most back segment is cut-off parts.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. the one-shot forming cross wedge rolling die of a gear shaft, comprise the die ontology be arranged at outside the upper and lower beaming roller of cross wedge rolling milling train, it is characterized in that, described die ontology comprises Step Shaft shaped portion, flute profile shaped portion, shaping unit and cut-off parts, wherein, described Step Shaft shaped portion is made up of four pieces of arc module, described arc module outer surface is processed with the die cavity for each Step Shaft of formed tooth wheel shaft, and described die cavity comprises wedging section, broadening section, shaped segment and cut-out section.
2. the one-shot forming cross wedge rolling die of a kind of gear shaft according to claim 1, is characterized in that, if the circumference of gear shaft does not need the shaping of the cylindrical section of shaping profile of tooth, the shape of shape and its every section of its type groove is corresponding.
3. the one-shot forming cross wedge rolling die of a kind of gear shaft according to claim 1, is characterized in that, if circumference is with gear teeth type, the type groove shape of this section is amassed equal principle according to this segment body and widened shaping gradually.
4. the one-shot forming cross wedge rolling die of a kind of gear shaft according to claim 1, is characterized in that, the broadening angle of described broadening section is 8.5 °.
5. the one-shot forming cross wedge rolling die of a kind of gear shaft according to claim 1, is characterized in that, the forming angle of described shaped segment is 30 °.
6. the one-shot forming cross wedge rolling die of a kind of gear shaft according to claim 1, it is characterized in that, described flute profile shaped portion is in the mold cavity part of the correspondence of the shaping flute profile of needs, according to castellated shape from shallow to deep process corresponding gear flute profile shape, the die length required for from incipient shallow shape to required shape is the circumferential length of this corresponding part.
7. the one-shot forming cross wedge rolling die of a kind of gear shaft according to claim 1, is characterized in that, described plastic section length is that profile of tooth reference circle launches girth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510271867.5A CN105081156A (en) | 2015-05-26 | 2015-05-26 | One-time molding cross wedge rolling mold of gear shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510271867.5A CN105081156A (en) | 2015-05-26 | 2015-05-26 | One-time molding cross wedge rolling mold of gear shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105081156A true CN105081156A (en) | 2015-11-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510271867.5A Pending CN105081156A (en) | 2015-05-26 | 2015-05-26 | One-time molding cross wedge rolling mold of gear shaft |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109590334A (en) * | 2018-12-14 | 2019-04-09 | 山东汇锋传动股份有限公司 | Driving tapered gear shaft blank cross wedge rolling molding jig and its milling method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4050273A (en) * | 1975-02-19 | 1977-09-27 | Sato Tekko Co., Ltd. | Cross-roll forging machine |
| CN201505666U (en) * | 2009-09-29 | 2010-06-16 | 莱芜市汇锋汽车轴齿有限公司 | Cross wedge rolling polywedge synchronous rolling automobile through shaft blank die |
| CN201744489U (en) * | 2010-05-18 | 2011-02-16 | 柳州市半轴汽车配件有限责任公司 | Cross wedge rolling process mould |
| CN202151669U (en) * | 2011-06-20 | 2012-02-29 | 湖北鑫强汽车零部件制造有限公司 | Gear shaft wedge rolling mould capable of rolling three blank pieces by one rotation of rolling mill |
-
2015
- 2015-05-26 CN CN201510271867.5A patent/CN105081156A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4050273A (en) * | 1975-02-19 | 1977-09-27 | Sato Tekko Co., Ltd. | Cross-roll forging machine |
| CN201505666U (en) * | 2009-09-29 | 2010-06-16 | 莱芜市汇锋汽车轴齿有限公司 | Cross wedge rolling polywedge synchronous rolling automobile through shaft blank die |
| CN201744489U (en) * | 2010-05-18 | 2011-02-16 | 柳州市半轴汽车配件有限责任公司 | Cross wedge rolling process mould |
| CN202151669U (en) * | 2011-06-20 | 2012-02-29 | 湖北鑫强汽车零部件制造有限公司 | Gear shaft wedge rolling mould capable of rolling three blank pieces by one rotation of rolling mill |
Non-Patent Citations (1)
| Title |
|---|
| 闫华军 等: "楔横轧梯形螺纹轴成形模设计与轧制工艺", 《模具工业》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109590334A (en) * | 2018-12-14 | 2019-04-09 | 山东汇锋传动股份有限公司 | Driving tapered gear shaft blank cross wedge rolling molding jig and its milling method |
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Application publication date: 20151125 |
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