CN201592226U - Special die for non-scrap cross wedge rolling of revolving shafts - Google Patents

Special die for non-scrap cross wedge rolling of revolving shafts Download PDF

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Publication number
CN201592226U
CN201592226U CN2010201038037U CN201020103803U CN201592226U CN 201592226 U CN201592226 U CN 201592226U CN 2010201038037 U CN2010201038037 U CN 2010201038037U CN 201020103803 U CN201020103803 U CN 201020103803U CN 201592226 U CN201592226 U CN 201592226U
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CN
China
Prior art keywords
wedge
length
rolling
cylindrical mold
main
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Expired - Lifetime
Application number
CN2010201038037U
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Chinese (zh)
Inventor
朱传宝
刘波
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SHANDONG ZHONGXIN GROUP AUTO PARTS CO Ltd
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SHANDONG ZHONGXIN GROUP AUTO PARTS CO Ltd
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Priority to CN2010201038037U priority Critical patent/CN201592226U/en
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Publication of CN201592226U publication Critical patent/CN201592226U/en
Anticipated expiration legal-status Critical
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Abstract

The utility model discloses a special die for non-scrap cross wedge rolling of revolving shafts, which comprises a cylindrical die body (1), a wheel-part hole forming groove (2), a main wedge surface (3) and an auxiliary wedge surface (4), wherein the main wedge surface (3) and the auxiliary wedge surface (4) are symmetrically arranged at two sides of the wheel-part hole forming groove (2). The special die is characterized in that a blocking wedge surface (5) is arranged outside the auxiliary wedge surface (4). The weight of metal bars put in the die is equal to that of the revolving axle to be processed, therefore, waste scrap is not generated, and the utilization rate of material is 100 percent. As the blocking wedge surface is additionally arranged on the special die, radial squeezing and axial inward pressing of the end of metal bars is converted into vertical pressing gradually, therefore, the density of ends of processed blanks is not reduced and the ends thereof are smooth, thereby not only improving the utilization rate of material, but also reducing the production cost. The special die can be widely used for cross wedge rolling.

Description

The rotator shaft class does not have stub bar cross wedge rolling system particular manufacturing craft
Technical field
The utility model relates to a kind of improvement of cross wedge rolling molding jig of rotator shaft metalloid part, and specifically a kind of rotator shaft class that can improve stock utilization does not have stub bar cross wedge rolling system particular manufacturing craft.
Background technology
At present, the forming method of rotator shaft metalloid part mainly contains three kinds: cutting technology, Forging Technology and cross wedge rolling system technology.
Cutting technology is with the bar of diameter greater than the maximum diamater of work, is lathed type on lathe.Though need not heating, advantage of low energy consumption, there is the extremely low shortcoming of stock utilization in this cutting technology, and generally speaking, stock utilization has only about 50%, and operating efficiency is very low.
Forging Technology is that the bar that will heat is placed between the upper and lower mould of forcing press, and by the strike of upper and lower mould to bar, moulding in die cavity is excised waste material on every side again.The shortcoming of this Forging Technology is: stock utilization is still lower, generally about 70%, and needs heating, and energy consumption is also higher, leaves side cut behind the excision waste material, and the deviation from circular from of cross section is bigger.
Cross wedge rolling system technology also is the moulding of pattern tool.Be after with the Frequency Induction Heating electric furnace metal bar material being heated to uniform temperature earlier, be put on the cross wedge rolling machine, upper and lower two horizontally disposed cylinder type moulds are done rotation in the same way, by outwards calendering vertically, the metal bar material that makes heating between two cylinder type moulds the scrolling realization radial compression, extend axially moulding, because mould therefor has only the effect of outside calendering, so the metal bar material two ends have the waste material head to produce in forming process, after the Strain During Finishing Stage shaping, the waste material head is cut off with the cutting knife that is installed in both mold ends.This cross wedge rolling molding jig, the utilization rate of its material are better than cutting technology and Forging Technology about 80%, but still exist the shortcoming that material can not all utilize.
Summary of the invention
The purpose of this utility model is to provide a kind of utilization rate that can make material near 100%, the rotator shaft residual material-free obliquely and transversely rolling particular manufacturing craft that can reduce production costs to greatest extent, can enhance productivity.
For reaching above purpose, the technical scheme that the utility model adopted is: this rotator shaft class does not have stub bar cross wedge rolling system particular manufacturing craft, by the cylindrical mold body, wheel portion pass forming tank, main wedge surface and secondary wedge surface constitute, wheel portion pass forming tank is located at the middle part of cylindrical mold body, the axial dimension of wheel portion pass forming tank multiply by the thermal coefficient of expansion of steel, equal want the axial dimension of rolling revolving body shaft-like workpiece, its degree of depth is progressively deepened, when being rolled down to the quadravalence section degree of depth equal want the height of rolling rotator shaft class wheel, the both sides that are located at wheel portion pass forming tank of main wedge surface symmetry, the outside that is located at main wedge surface of secondary wedge surface symmetry is characterized in that: the outside at the secondary wedge surface of both sides is equipped with the backgauge wedge surface.
As a kind of improvement, described main wedge surface is triangular ramp Δ aeb; Secondary wedge surface is triangular ramp Δ afe, and the wedge of main wedge surface and secondary wedge surface is on the contrary, and the hypotenuse of the hypotenuse of the triangular ramp Δ aeb of main wedge surface and the triangular ramp Δ afe of secondary wedge surface is a same hypotenuse; Described backgauge wedge surface is made up of with interior pressure acting section, vertical leveling section non-acting section, non-acting section is wide inclined-plane, from g to h section, its oblique and main wedge surface and secondary wedge surface oblique opposite, interior pressure acting section is triangular ramp Δ fhe, its oblique and main wedge surface and secondary wedge surface oblique opposite, vertical leveling section is vertical plane from e to k section; Described cylindrical mold body is divided into five sections, and first section is the pan feeding section, and its length is the 10-12% of cylindrical mold body length of run; Second section is the open rolling section, and its length is the 13-16% of cylindrical mold body length of run, and in this section, main wedge surface is the shear knife bladed, and its inclined-plane links to each other with the inclined-plane of secondary wedge surface, and the gradient of main wedge surface is greater than the gradient of secondary wedge surface, and progressively intensification; The 3rd section is the conversion section of rolling, and its length is the 5-8% of cylindrical mold body length of run, and in this section, beginning to occur the dead axle diameter rolls face, and secondary wedge surface progressively is connected with the backgauge wedge surface, and the termination of metal bar material progressively extends the backgauge wedge surface; The 4th section for axially to the section of rolling, its length is the 33-36% of cylindrical mold body length of run; The 5th section is Strain During Finishing Stage, and its length is the 32-35% of cylindrical mold body length of run.
The beneficial effects of the utility model are: compare with present gyroaxis class cross wedge rolling molding jig, because the metal bar material weight of the mould of putting into is consistent with gyroaxis class part weight to be processed, so can not produce the waste material head, the utilization rate that can reach material is 100%; Owing on particular manufacturing craft, increased the backgauge wedge surface, the termination of metal bar material is progressively transferred to by radial compression and internal axial pressure vertical, so the blank termination density of processing can not reduce, and concordant.By the utility model, not only improved the utilization rate of material, and reduced production cost.
Description of drawings
Fig. 1, look schematic diagram for the master of the particular manufacturing craft of an embodiment of the present utility model.
Fig. 2, be the expansion schematic top plan view of the particular manufacturing craft of Fig. 1 embodiment of the present utility model.
Fig. 3, be the A-A section cross-sectional schematic of the utility model along Fig. 2.
Fig. 4, be the B-B section cross-sectional schematic of the utility model along Fig. 2.
Fig. 5, be the C-C section cross-sectional schematic of the utility model along Fig. 2.
Fig. 6, be the D-D section cross-sectional schematic of the utility model along Fig. 2.
Fig. 7, be the E-E section cross-sectional schematic of the utility model along Fig. 2.
Fig. 8, overlook enlarged diagram for embodiment of the utility model gyroaxis class part to be processed.
The specific embodiment
Make utility model with reference to Fig. 1,2,3,4,5,6,7.This rotator shaft residual material-free obliquely and transversely rolling particular manufacturing craft, by cylindrical mold body 1, wheel portion pass forming tank 2, main wedge surface 3 and secondary wedge surface 4 constitute, wheel portion pass forming tank 2 is located at the middle part of cylindrical mold body 1, the axial dimension of wheel portion pass forming tank 2 multiply by the thermal coefficient of expansion of steel, equal want the height of rolling rotator shaft class part wheel, its degree of depth is progressively deepened, when being rolled down to the quadravalence section degree of depth equal want the height of rolling rotator shaft class part wheel, the both sides of the wheel portion that the is located at pass forming tank 2 of main wedge surface 3 symmetries, roll extrusion by both sides master's wedge surface 3, metal bar material is extended to two ends to attenuate, the outside that is located at main wedge surface 3 of secondary wedge surface 4 symmetries, roll extrusion by the secondary wedge surface 4 in both sides, metal bar material is produced be out of shape and reduce the resistance that metal bar material extends to two ends, it is characterized in that: the outside at the secondary wedge surface 4 of both sides is equipped with backgauge wedge surface 5, stops the metal material on surface to continue to flow to two ends by backgauge wedge surface 5, and finally forms flush end face.
As a kind of improvement, described main wedge surface 3 is triangular ramp Δ aeb, secondary wedge surface 4 is triangular ramp Δ afe, and the wedge of main wedge surface 3 and secondary wedge surface 4 is on the contrary, and the hypotenuse of the hypotenuse of the triangular ramp Δ aeb of main wedge surface 3 and the triangular ramp Δ afe of secondary wedge surface 4 is a same hypotenuse; Described backgauge wedge surface 5 is by non-acting section 51 and interior pressure acting section 52, vertical leveling section 53 is formed, non-acting section 51 is that wide inclined-plane is from g to h section, its oblique and main wedge surface 3 and secondary wedge surface 4 oblique opposite, interior pressure acting section 52 is triangular ramp Δ fhe, its oblique and main wedge surface 3 and secondary wedge surface 4 oblique opposite, make backgauge wedge surface 5 when stoping the metal material extension, make metal material inwardly pressurization vertically, this not only makes processing blank broken end neat, also strengthened the density of processing blank termination, guarantee the quality of termination, vertical leveling section 53 is from e to k section, is vertical plane; Described cylindrical mold body 1 is divided into 5 sections, and first section is the pan feeding section, and its length is the 10-12% of cylindrical mold body 1 length of run, and in this section, the metal stock rolling of heating is smooth puts together, to enter the open rolling section synchronously; Second section is the open rolling section, its length is the 13-16% of cylindrical mold body 1 length of run, in this section, main wedge surface 3 is the shear knife bladed, to the metal bar material open rolling, its inclined-plane links to each other with the inclined-plane of secondary wedge surface 4, and the gradient of main wedge surface 3 is greater than the gradient of secondary wedge surface 4, and progressively deepen, make metal bar material extension vertically; The 3rd section is the conversion section of rolling, and its length is the 5-8% of cylindrical mold body 1 length of run, and in this section, beginning to occur the dead axle diameter rolls face 6, and secondary wedge surface 4 progressively is connected with backgauge wedge surface 5, and the broken end of metal bar material progressively extends backgauge wedge surface 5; The 4th section for axially to the section of rolling, its length is the 33-36% of cylindrical mold body 1 length of run, in this section, carry out simultaneously along the axle extension with along pressure in the axle, simultaneously the dead axle diameter roll face 6 gradually broadening to requiring length, press the inclined-plane gradient of acting section 52 to gradually become vertically in it, make the termination of processing blank become vertical plane gradually by the inclined-plane; The 5th section is Strain During Finishing Stage, and its length is the 32-35% of cylindrical mold body 1 length of run, and in this section, the processing blank is finalized the design, and through roll extrusion, makes its surfacing.

Claims (3)

1. a rotator shaft class does not have stub bar cross wedge rolling system particular manufacturing craft, constitute by cylindrical mold body (1), wheel portion pass forming tank (2), main wedge surface (3) and secondary wedge surface (4), wheel portion pass forming tank (2) is located at the middle part of cylindrical mold body (1), the both sides of the wheel portion that the is located at pass forming tank (2) of main wedge surface (3) symmetry, the outside that is located at main wedge surface (3) of secondary wedge surface (4) symmetry is characterized in that: the outside at the secondary wedge surface (4) of both sides is equipped with backgauge wedge surface (5).
2. rotator shaft class according to claim 1 does not have stub bar cross wedge rolling system particular manufacturing craft, it is characterized in that described backgauge wedge surface (5) is made up of non-acting section (51) and interior pressure acting section (52), vertical leveling section (53), non-acting section (51) is that wide inclined-plane is from g to h section, its oblique and main wedge surface (3) and secondary wedge surface (4) oblique opposite, interior pressure acting section (52) is triangular ramp Δ fhe, its oblique and main wedge surface (3) and secondary wedge surface (4) oblique opposite, vertical leveling section (53) is from e to k section, is vertical plane.
3. rotator shaft class according to claim 1 does not have stub bar cross wedge rolling system particular manufacturing craft, it is characterized in that described cylindrical mold body (1) is divided into five sections, and first section is the pan feeding section, and its length is the 10-12% of cylindrical mold body (1) length of run; Second section is the open rolling section, and its length is the 13-16% of cylindrical mold body (1) length of run, and in this section, main wedge surface (3) is the shear knife bladed, and its inclined-plane links to each other with the inclined-plane of secondary wedge surface (4); The 3rd section is the conversion section of rolling, and its length is the 5-8% of cylindrical mold body (1) length of run, and in this section, beginning to occur the dead axle diameter rolls face (6), and secondary wedge surface (4) progressively is connected with retaining wedge surface (5); The 4th section for axially to the section of rolling, its length is the 33-36% of cylindrical mold body (1) length of run; The 5th section is Strain During Finishing Stage, and its length is the 32-35% of cylindrical mold body (1) length of run.
CN2010201038037U 2010-01-29 2010-01-29 Special die for non-scrap cross wedge rolling of revolving shafts Expired - Lifetime CN201592226U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010201038037U CN201592226U (en) 2010-01-29 2010-01-29 Special die for non-scrap cross wedge rolling of revolving shafts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010201038037U CN201592226U (en) 2010-01-29 2010-01-29 Special die for non-scrap cross wedge rolling of revolving shafts

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101758149B (en) * 2010-01-29 2011-10-12 山东中兴汽车零部件有限公司 Rotator shaft residual material-free obliquely and transversely rolling method and special mold
CN103302211A (en) * 2013-05-29 2013-09-18 河北东安精工股份有限公司 Small stub bar transverse rolling processing mould
CN108927473A (en) * 2018-08-21 2018-12-04 上海应用技术大学 A kind of plate-type wedge rolling mold of ball stud

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101758149B (en) * 2010-01-29 2011-10-12 山东中兴汽车零部件有限公司 Rotator shaft residual material-free obliquely and transversely rolling method and special mold
CN103302211A (en) * 2013-05-29 2013-09-18 河北东安精工股份有限公司 Small stub bar transverse rolling processing mould
CN108927473A (en) * 2018-08-21 2018-12-04 上海应用技术大学 A kind of plate-type wedge rolling mold of ball stud
CN108927473B (en) * 2018-08-21 2020-04-07 上海应用技术大学 Plate type cross wedge rolling die for ball pin

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GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20100929

Effective date of abandoning: 20100129