CN1004538B - Opposite die forging apparatus using vertical segmental dies - Google Patents

Opposite die forging apparatus using vertical segmental dies Download PDF

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Publication number
CN1004538B
CN1004538B CN 87103600 CN87103600A CN1004538B CN 1004538 B CN1004538 B CN 1004538B CN 87103600 CN87103600 CN 87103600 CN 87103600 A CN87103600 A CN 87103600A CN 1004538 B CN1004538 B CN 1004538B
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CN
China
Prior art keywords
forging
die
template
mould
unsteady
Prior art date
Application number
CN 87103600
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Chinese (zh)
Other versions
CN87103600A (en
Inventor
谢谈
贾德伟
赵国华
Original Assignee
机械工业委员会北京机电研究所
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by 机械工业委员会北京机电研究所 filed Critical 机械工业委员会北京机电研究所
Priority to CN 87103600 priority Critical patent/CN1004538B/en
Publication of CN87103600A publication Critical patent/CN87103600A/en
Publication of CN1004538B publication Critical patent/CN1004538B/en

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Abstract

The present invention relates to an opposite die forging device for dividing dies vertically, which is mainly suitable for an opposite die forging with double flange forgings in the class of duplex tooth blanks. The device moves downwards with blanks and a dividable concave die through a floating die plate, wherein the blanks deform after free upset, and the dividable concave die is clamped outside the blanks. Consequently, opposite swaging can be realized on a universal single-movement forging device. Moreover, the present invention adopts a die-dividing key to divide dies vertically, and the forgings are taken out. The present invention has the characteristics of simple die structure, easy manufacture, low manufacture cost, convenient operation, reliability and strong applicability.

Description

The vertical mould subtend die forging device that divides
The present invention relates to a kind of vertical minute mould subtend die forging device, this device mainly is applicable to the subtend hot forging of duplex tooth blank band double flange forging.
Dividing the mould die forging is to utilize to divide the die forging complex-shaped, the extrusion forging process of accurate in size non-trimming forging, be in the divided forging die of sealing, with one or several drifts, on one or several directions, blank is advanced the process of shape extrusion modling, according to the difference of die mould-dividing mode, horizontal parting be can be divided into, mould and three kinds of forms of compound minute mould vertically divided.The key of dividing the mould contour forging technique is reasonably to determine pressing mold power and select stamper architecture for use.Usually the branch mould die forging of adopting can be divided into two types.A kind of is to carry out the die forging of branch mould on special equipment, and another kind is to use particular manufacturing craft to carry out the die forging of branch mould on general forging equipment.Carry out the die forging of branch mould on special equipment (as two moving hotdie forging presses, hydraulic pressure multiple plunger press, two moving fly presses etc.), have the productivity ratio height, divide mould and pressing mold reliable, applicability is strong, is convenient to characteristics such as operation, but equipment investment is very big.It is more to use the particular manufacturing craft device to carry out the structure type of branch mould die forging on general forging equipment; as spring, mechanical lever-type, pneumatic-hydraulic formula etc. compresses the structure of die; these structures are for horizontal parting; the less branch mould die forging of required pressing mold power still can, and vertically divide mould, thereby make press moulding mechanism complicated heavy because required pressing mold power is bigger; the rigidity deficiency; influence the pressing mold effect, and the manufacturing cost height, processing difficulties.
The objective of the invention is to process characteristic, design a kind of novel vertical minute mould subtend die forging device, make its mould simple according to duplex tooth blank forging, applicability is strong, formability is good, can be on general forging equipment, and the forging of once-forming duplex tooth blank band double flange.
Concrete solution of the present invention is as follows:
For the vertical minute mould subtend die forging device that mainly is applicable to the hot forging of duplex tooth blank double flange forging, mainly by cope match-plate pattern, the template of floating and lower bolster constitute.Blank is after free compression between the last low punch produces distortion, block the small-bore part that to divide die, drive is pressed on and can divides the outer unsteady template of die descending together, thereby on general single action forging equipment, realize the subtend die forging, and adopting the symmetrical branch natch that is installed on the template internal taper hole that floats to realize the vertical mould that divides, the gradient of branch natch is identical with the tapering of the unsteady template endoporus conical surface.Under the effect of equipment backing-out punch, can divide die when up, to open automatically by trapezoidal minute natch, take out forging, auto-closing resets when descending.
The present invention vertically divides mould subtend die forging device, owing to adopted the structure of unsteady template, not only can realize vertically dividing the die forging of mould subtend on general single action forging equipment, and do not need special-purpose hold-down mechanism, and make mould structure simple, volume is little, easy to manufacture, low cost of manufacture; Of the present invention minute natch structure can make can divide die to open automatically with closed, easy and simple to handle reliable.The present invention also has productivity ratio height, characteristic of strong applicability.
Concrete structure of the present invention is provided by following examples and accompanying drawing thereof.
Fig. 1, Fig. 2 are the structural representations that the present invention vertically divides mould subtend die forging device.
Fig. 3, Fig. 4 are the structural representations of branch natch.
The details and the working condition of vertically dividing mould subtend die forging device below in conjunction with a kind of the present invention of realization of description of drawings.
Among Fig. 1, (1) is cope match-plate pattern, and (2) are the template of floating, and (3) are lower bolster.During operation, blank (5) is heated to heat distortion temperature by firing equipment, put into and to divide die (7), slide block (not drawing among the figure) drive cope match-plate pattern (1) by the single action forging equipment is descending, low punch (11) is motionless, at first free compression distortion between upper punch (4) and low punch (11) of blank (5).According to part shape size difference, the draw ratio difference of blank, behind the free compression, blank presents single-drum shape or two kinds of distortion of twin drum shape, blocks the small-bore part that can divide die (7).Divided die among Fig. 1 (7) but form by two sub-modules, its outer conical surface is identical with the tapering of the endoporus conical surface of unsteady template (2), according to using needs, generally chooses in 7 ° of-15 ° of scopes.Under the continuation effect of upper punch (4), blank is in continuing deformation process, because the endoporus conical surface of the template (2) of floating is identical with the outer conical surface tapering that can divide die (7), this tapering is compressed automatically by unsteady template (2) in deformation process can divide die (7), therefore it is descending together to drive template (2) the compression spring (9) that floats, and forms model subtend die forging up and down.The forging radial load that produces in the die forging deformation process promptly divides mould power to be born by unsteady template (2).Forging axial force is born by spring (9).Cope match-plate pattern (1), the closed back distortion of the template (2) of floating and lower bolster (3) finishes, and blank (5) forms duplex tooth base forging (6).After distortion finishes, can divide die from the template (2) of floating, to take out easily.
As shown in Figure 2,, fix two branch natch (13) symmetrically by soket head cap screw, divide structure such as Fig. 3 of natch (13) by cubic pressing plate (12) at the endoporus conical surface place of floating template (2), shown in Figure 4.The A that divides natch (13), B face Dou degree is identical with the tapering of the outer conical surface that can divide die with the endoporus conical surface of unsteady template.After forging end, the equipment slide block drives cope match-plate pattern (1) and up the lifting of upper punch (4), and spring (9) resets unsteady template (2).Can divide die (7) by backing-out punch under the equipment (not drawing among the figure) by low punch (11) jack-up, can divide die (7) A along a minute natch (13) when up, B Dou face diameter is to automatic unlatching, when the size of separating during greater than the lower flange radial dimension of forging (6), can take out forging.After backing-out punch resets under the equipment, low punch (11) is descending, can divide simultaneously die (7) by conducting oneself with dignity along the endoporus conical surface of the template (2) of floating and the A of branch natch (13), the descending auto-closing in B inclined-plane resets, in deformation process, fairlead (10) play the guiding role, to guarantee the concentricity of unsteady template (2) and low punch.
Vertically divide in the mould subtend die forging device in the present invention, adopt spring (9) that template (2) is floated, the design principle of spring (9) is to make the former resistance of deformation of spring (9) be a bit larger tham unsteady template (2) and play the weight of descending part with one.In the flow of metal process, the camber of spring drag heals better little, makes subtend die forging cast material distributed uniform up and down.Present embodiment adopts 6 socket cap screw pull bars (8) to give holddown spring (9), the upper limit position of the unsteady template (2) of control.And according to the requirement of different parts, by the float down stroke of template (2) of pull bar (8) adjustment, i.e. effective upsetting squeeze stroke of low punch makes up and down that material distributes rationally in the model.

Claims (4)

1, a kind of vertical minute mould subtend die forging device, mainly be applicable to the hot forging of duplex tooth blank double flange forging, this device is mainly by cope match-plate pattern (1), the template (2) of floating and lower bolster (3) constitute, it is characterized in that the branch natch (13) that adopts symmetry to be installed on unsteady template (2) internal taper hole realizes that the vertical mould that divides takes out forging automatically.
2, vertical minute according to claim 1 mould subtend die forging device, it is characterized in that adopting spring (9) that template (2) is floated, the design principle of spring (9) is to make the former resistance of deformation of spring (9) be a bit larger tham unsteady template (2) and play descending being pressed on the divided die (7) in the unsteady template (2) and being out of shape the weight that Hou is stuck in the blank (5) at the place, small-bore that can divide die (7) with one.
3, vertical minute according to claim 1 and 2 mould subtend die forging device, it is characterized in that, adopt socket cap screw pull bar (8) to compress spring (9) in advance, the upper limit position of the unsteady template (2) of control, and according to the requirement of different parts, by adjust the to float down stroke of template (2) of pull bar (8), i.e. effective jumping-up stroke of low punch makes up and down that material distributes rationally in the model.
4, vertical minute according to claim 1 mould subtend die forging device is characterized in that, divides the gradient of natch (13) identical with the tapering of the endoporus conical surface of unsteady template (2).
CN 87103600 1987-05-19 1987-05-19 Opposite die forging apparatus using vertical segmental dies CN1004538B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 87103600 CN1004538B (en) 1987-05-19 1987-05-19 Opposite die forging apparatus using vertical segmental dies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 87103600 CN1004538B (en) 1987-05-19 1987-05-19 Opposite die forging apparatus using vertical segmental dies

Publications (2)

Publication Number Publication Date
CN87103600A CN87103600A (en) 1988-12-14
CN1004538B true CN1004538B (en) 1989-06-21

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CN 87103600 CN1004538B (en) 1987-05-19 1987-05-19 Opposite die forging apparatus using vertical segmental dies

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101879536A (en) * 2010-07-02 2010-11-10 洛阳理工学院 Method for forming helical gear by radial cold extrusion and die thereof

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CN101745591B (en) * 2008-12-18 2011-11-16 东莞市鸿企机械有限公司 Metal forging and forming device and processing method thereof
CN101486058A (en) * 2009-02-18 2009-07-22 李明锁 Precision punching method for drill bit
CN102125977B (en) * 2011-02-24 2012-11-07 江苏太平洋精锻科技股份有限公司 Automobile speed changer engaging gear integral tapering and forming mould
CN102284663A (en) * 2011-06-09 2011-12-21 无锡东海锻造有限公司 Precision forging process and die for flange
CN102423780A (en) * 2011-12-16 2012-04-25 北京机电研究所 Trimming, piercing and correction method with one stroke
CN102921855A (en) * 2012-11-30 2013-02-13 南通市电站阀门有限公司 Rapid joint forging process and forging die
CN104972043B (en) * 2015-06-29 2017-05-03 南京晨伟机械设备制造有限公司 Detachable female die for automatic transmission reverse gear shaft of automobile
CN105665712B (en) * 2016-04-11 2018-02-13 哈尔滨建成集团有限公司 A kind of two-way warm extrusion mould
CN107520397A (en) * 2017-10-17 2017-12-29 广州小出钢管有限公司 A kind of technique of automobile chassis ultra-thin tube forging forming

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101879536A (en) * 2010-07-02 2010-11-10 洛阳理工学院 Method for forming helical gear by radial cold extrusion and die thereof

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Publication number Publication date
CN87103600A (en) 1988-12-14

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