CN201684773U - Mould for forming disc type forgings - Google Patents

Mould for forming disc type forgings Download PDF

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Publication number
CN201684773U
CN201684773U CN2010202081763U CN201020208176U CN201684773U CN 201684773 U CN201684773 U CN 201684773U CN 2010202081763 U CN2010202081763 U CN 2010202081763U CN 201020208176 U CN201020208176 U CN 201020208176U CN 201684773 U CN201684773 U CN 201684773U
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CN
China
Prior art keywords
forging
blocking
finish
die
counterdie
Prior art date
Application number
CN2010202081763U
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Chinese (zh)
Inventor
陈学慧
Original Assignee
东风汽车有限公司
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Application filed by 东风汽车有限公司 filed Critical 东风汽车有限公司
Priority to CN2010202081763U priority Critical patent/CN201684773U/en
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Publication of CN201684773U publication Critical patent/CN201684773U/en

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Abstract

The utility model relates to a mould for forming disc type forgings, comprising a pre-forging die and a final-forging die, wherein the pre-forging die comprises a pre-forging upper die and a pre-forging lower die which are matched with each other; the final-forging die comprises a final-forging upper die and a final-forging lower die which are matched with each other; the pre-forging die is a closed forging die, and a cavity formed by assembling the pre-forging upper die and the pre-forging lower die is a closed cavity; and the final-forging die is an open forging die, and a cavity formed by assembling the final-forging upper die and the final-forging lower die is an open cavity with a gutter bridge. The mould reduces the production cost and the rejection rate, improves the production efficiency and is applicable to forging disc products.

Description

Be used to coil the mould that forging is shaped

Technical field

The utility model relates to the forging field, relates in particular to be used to coil the mould that forging is shaped.

Background technology

Before the utility model proposes, the following two kinds of moulds of the general employing of dish forging:

A kind of is open forging die, it with the maximum projection plane of forging as die joint, design bridge portion and storehouse portion on the forging die, the size of bridge portion is according to the tonnage of equipment, getting usually highly is 3~6mm, width is 6~12mm, storehouse portion is used for holding unnecessary metal.Cutting mode mostly is shearing blanking, and required precision is not high.But pre-in the forming process, finish-forging work step all can produce overlap, and waste of material is serious.

Another kind is a closed forging die, does not design bridge portion and storehouse portion on the mould, does not have the generation of overlap in the forging process, and stock utilization is higher.But closed forging die is had relatively high expectations to cutting stock precision, and in the actual production process, because influence of various factors such as blank diameter tolerances, cutting stock precision is difficult to guarantee, scraps because of weight is overproof sometimes at blanking process blank.Forge and also be difficult in the process avoid to produce vertical burr: if go out vertical burr, to the finish-forging work step, just vertical burr might be pressed into the forging body, form scrimp, cause waste product at the blocking work step.

The utility model content

The purpose of this utility model is in order to solve the deficiency that the above-mentioned background technology exists, to propose a kind of mould that is used to coil the forging shaping that can improve the stock utilization and the rate of reducing the number of rejects and seconds.

For achieving the above object, the utility model adopts following technical scheme: be used to coil the mould that forging is shaped, comprise blocker and finisher, blocker is made up of blocking patrix that cooperatively interacts and blocking counterdie, finisher is made up of cooperatively interact finish-forging patrix and finish-forging counterdie, it is characterized in that described blocker is a closed forging die, formed die cavity is a near closed hollow ring behind its blocking patrix and the blocking counterdie matched moulds; Described finisher is an open forging die, and formed die cavity is the open type die cavity that has overlap bridge portion behind its finish-forging patrix and the finish-forging counterdie matched moulds.

In such scheme, described blocker counterdie comprises blocking die shoe, blocking counterdie sole piece and blocking lower die-sleeve piece, blocking lower die-sleeve piece is pressed on blocking counterdie sole piece on the blocking die shoe, and fix by screw, blocking counterdie sole piece center is provided with the blocking push rod, the blocking patrix comprises blocking upper bolster and blocking patrix sole piece, and blocking patrix sole piece is fixed on the blocking upper bolster by screw, and described blocking counterdie sole piece, blocking lower die-sleeve piece and blocking patrix sole piece form die cavity.

In such scheme, described finisher counterdie comprises finish-forging die shoe, finish-forging counterdie sole piece and finish-forging lower die-sleeve piece, finish-forging lower die-sleeve piece is pressed on finish-forging counterdie sole piece on the finish-forging die shoe, and fix by screw, finish-forging counterdie sole piece center is provided with the finish-forging push rod, the finish-forging patrix comprises finish-forging upper bolster and finish-forging patrix sole piece, and finish-forging patrix sole piece is fixed on the finish-forging upper bolster by screw, and described finish-forging counterdie sole piece, finish-forging lower die-sleeve piece and finish-forging patrix sole piece form die cavity.

In such scheme, the volume of the die cavity of the volume ratio finisher of the die cavity of described blocker is big by 1%~3%.

In such scheme, the maximum inner diameter of the die cavity of described finish-forging counterdie is than the little 4~6mm of maximum inner diameter of the die cavity of blocking counterdie, and the burr of blocking work step generation can not be pressed into the finisher die cavity during to the finish-forging work step like this, cause scrimp, but form the very little overlap of a circle.

In such scheme, the maximum depanning gradient between described blocking patrix and the blocking counterdie is 7~15 °, and the vertical burr that produces when stock volume is big along the depanning gradient direction generation of the upper and lower mould of blocking, is partial to blocking die cavity outside like this.

In such scheme, one section of the Position Design of the close overlap bridge portion of described finish-forging patrix with forge direction and become 7~15 ° taper seat, such design can further effectively reduce vertical burr that the blocking work step produces and be pressed into the finish-forging die cavity and form foldingly, causes the probability of waste product.

Blocker of the present utility model adopts closed forging die, and finisher adopts the design of open forging die to reduce the forging flash amount that produces in the forging process, thereby has improved stock utilization, has directly reduced production cost; And compare with common closed-die forging, eliminated the fluctuation that causes stock volume because of factors such as blanking, hot scaling loss, reduced be not fully filled, quality waste product such as scrimp, improved forging quality, thereby reduced percent defective; Aspect in addition, the intact back of finish-forging forging flash only need utilize the shaving die excision, and specific efficiency is higher mutually, cost is lower to adopt machined to remove the mode of burr with the enclosed forging process, thereby has improved production efficiency.

The utility model has reduced production cost and percent defective, has improved production efficiency.

Description of drawings

Fig. 1 is the structural representation of blocker.

Fig. 2 is the partial enlarged drawing of Fig. 1.

Fig. 3 is the structural representation of finisher.

Fig. 4 is the partial enlarged drawing of Fig. 3.

Among the figure: 1.1-blocking die shoe, 1.2-blocking upper bolster, 1.3-blocking counterdie sole piece, 1.4-blocking lower die-sleeve piece, 1.5-blocking patrix sole piece, 1.6-blocking push rod, 2.1-finish-forging die shoe, 2.2-finish-forging upper bolster, 2.3-finish-forging counterdie sole piece, 2.4-finish-forging lower die-sleeve piece, 2.5-finish-forging patrix sole piece, 2.6-finish-forging push rod, 3-overlap bridge portion.

The specific embodiment

Present embodiment, be used to coil the mould that forging is shaped, comprise blocker and finisher, blocker is made up of blocking patrix that cooperatively interacts and blocking counterdie, finisher is made up of cooperatively interact finish-forging patrix and finish-forging counterdie, described blocker is a closed forging die, and formed die cavity is a near closed hollow ring behind its blocking patrix and the blocking counterdie matched moulds; Described finisher is an open forging die, and formed die cavity is the open type die cavity that has overlap bridge portion behind its finish-forging patrix and the finish-forging counterdie matched moulds.The volume of the die cavity of the volume ratio finisher of the die cavity of described blocker is big by 1%~3%.The maximum inner diameter of the die cavity of described finish-forging counterdie is than the little 4~6mm of maximum inner diameter of the die cavity of blocking counterdie.

As depicted in figs. 1 and 2, described blocker counterdie comprises blocking die shoe 1.1, blocking counterdie sole piece 1.3 and blocking lower die-sleeve piece 1.4, blocking lower die-sleeve piece 1.4 is pressed on blocking counterdie sole piece 1.3 on the blocking die shoe 1.1, and fix by screw, blocking counterdie sole piece 1.3 centers are provided with blocking push rod 1.6, the blocking patrix comprises blocking upper bolster 1.2 and blocking patrix sole piece 1.5, blocking patrix sole piece 1.5 is fixed on the blocking upper bolster 1.2 by screw, described blocking counterdie sole piece 1.3, blocking lower die-sleeve piece 1.4 and blocking patrix sole piece 1.5 form die cavity, and the maximum depanning gradient between described blocking patrix and the blocking counterdie is 7~15 °.

As shown in Figure 3 and Figure 4, described finisher counterdie comprises finish-forging die shoe 2.1, finish-forging counterdie sole piece 2.3 and finish-forging lower die-sleeve piece 2.4, finish-forging lower die-sleeve piece 2.4 is pressed on finish-forging counterdie sole piece 2.3 on the finish-forging die shoe 2.1, and fix by screw, finish-forging counterdie sole piece 2.3 centers are provided with finish-forging push rod 2.6, the finish-forging patrix comprises finish-forging upper bolster 2.2 and finish-forging patrix sole piece 2.5, finish-forging patrix sole piece 2.5 is fixed on the finish-forging upper bolster 2.2 by screw, described finish-forging counterdie sole piece 2.3, finish-forging lower die-sleeve piece 2.4 and finish-forging patrix sole piece 2.5 forms die cavities, one section of the Position Design of the close overlap bridge portion 3 of described finish-forging patrix with forge direction and become 7~15 ° taper seat.

When the utility model uses, earlier through blanking: according to the principal-employment of forging thickness half, calculate the nominal weight of blank, adopt the blanking of sawing mode, weight tolerance by nominal weight ± 1% control, guarantee that the blank both ends of the surface are smooth; The selection of blank specification is advisable between 2.0~2.3 to satisfy its length-to-diameter, guarantees in the upsetting process not unstability of blank.

Heating then: forge with between blank heating to 1180~1250 ℃.

Upsetting then again: base is put into carries out jumping-up on the heading die, remove the oxide skin of blank surface.Guarantee that simultaneously the blank shape after the upsetting is even, last bottom surface is smooth.Blank diameter size is roughly suitable with the diameter of blocking counterdie die cavity after the upsetting, and blank is evenly distributed when guaranteeing that blank is put into the die cavity of blocker.

And then be exactly blocking: the blocking work step adopts the closed-die forging mode, does not design bridge portion and storehouse portion on the blocker.Owing to do not design flash gutters on the die cavity of blocker, in order to guarantee the depanning smoothly of pre-forging, require the ejection height of blocking push rod 1.6 will be higher than the height of the maximum inner diameter of blocker die cavity, guarantee can make things convenient for clamping after pre-forging ejects.

Be finish-forging more with that: the finish-forging work step adopts open type to forge mode, is not pressed into the die cavity of finisher in order to guarantee the vertical burr on the pre-forging, also design on the finish-forging patrix one section with forge direction and become 7~15 ° taper seat.This version is compared with common finisher design, can effectively reduce vertical burr that the blocking work step produces and be pressed into the die cavity of finisher and form foldingly, causes the probability of waste product.

Be exactly to cut edge at last: according to conventional design method, the forging behind the finish-forging is put into edger, the excision overlap.

Claims (7)

1. be used to coil the mould that forging is shaped, comprise blocker and finisher, blocker is made up of blocking patrix that cooperatively interacts and blocking counterdie, finisher is made up of cooperatively interact finish-forging patrix and finish-forging counterdie, it is characterized in that described blocker is a closed forging die, formed die cavity is a near closed hollow ring behind its blocking patrix and the blocking counterdie matched moulds; Described finisher is an open forging die, and formed die cavity is the open type die cavity that has overlap bridge portion behind its finish-forging patrix and the finish-forging counterdie matched moulds.
2. the mould that is used to coil the forging shaping according to claim 1, it is characterized in that described blocker counterdie comprises blocking die shoe, blocking counterdie sole piece and blocking lower die-sleeve piece, blocking lower die-sleeve piece is pressed on blocking counterdie sole piece on the blocking die shoe, and fix by screw, blocking counterdie sole piece center is provided with the blocking push rod, the blocking patrix comprises blocking upper bolster and blocking patrix sole piece, blocking patrix sole piece is fixed on the blocking upper bolster by screw, and described blocking counterdie sole piece, blocking lower die-sleeve piece and blocking patrix sole piece form die cavity.
3. the mould that is used to coil the forging shaping according to claim 1, it is characterized in that described finisher counterdie comprises finish-forging die shoe, finish-forging counterdie sole piece and finish-forging lower die-sleeve piece, finish-forging lower die-sleeve piece is pressed on finish-forging counterdie sole piece on the finish-forging die shoe, and fix by screw, finish-forging counterdie sole piece center is provided with the finish-forging push rod, the finish-forging patrix comprises finish-forging upper bolster and finish-forging patrix sole piece, finish-forging patrix sole piece is fixed on the finish-forging upper bolster by screw, and described finish-forging counterdie sole piece, finish-forging lower die-sleeve piece and finish-forging patrix sole piece form die cavity.
4. according to claim 1ly be used to coil the mould that forging is shaped, it is characterized in that the volume of die cavity of volume ratio finisher of die cavity of described blocker is big by 1%~3%.
5. according to claim 1ly be used to coil the mould that forging is shaped, the maximum inner diameter of die cavity that it is characterized in that described finish-forging counterdie is than the little 4~6mm of maximum inner diameter of the die cavity of blocking counterdie.
6. according to claim 1 and 2 being used to coiled the mould that forging is shaped, and it is characterized in that the maximum depanning gradient between described blocking patrix and the blocking counterdie is 7~15 °.
7. describedly are used to coil the moulds that forging is shaped according to claim 1 or 3, it is characterized in that described finish-forging patrix close overlap bridge portion one section of Position Design with forge direction and become 7~15 ° taper seat.
CN2010202081763U 2010-05-25 2010-05-25 Mould for forming disc type forgings CN201684773U (en)

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102225455A (en) * 2011-04-13 2011-10-26 大连大高阀门有限公司 High-speed rail brace mould and forging process
CN102513486A (en) * 2011-12-16 2012-06-27 陕西宏远航空锻造有限责任公司 Die forging method for titanium alloy forge pieces
CN103752752A (en) * 2014-01-23 2014-04-30 连云港宝石精密重工科技有限公司 Finish forging die for forging aluminum alloy wheel
CN103861986A (en) * 2014-03-18 2014-06-18 北京北方车辆集团有限公司 Die set for producing end connector
CN104959518A (en) * 2015-06-26 2015-10-07 山东南山铝业股份有限公司 Method for preparing flange plate through die forging technology
CN105834348A (en) * 2016-05-25 2016-08-10 中车戚墅堰机车车辆工艺研究所有限公司 Method for forging workblank of transmission disc of locomotive
CN106670370A (en) * 2017-03-15 2017-05-17 辽宁银捷装备科技股份有限公司 Forging die and die forging technology for brake disc hub of high speed train
CN107470541A (en) * 2017-09-14 2017-12-15 山西豪钢锻造股份有限公司 Sprocket wheel forging molding process
CN108356192A (en) * 2018-04-09 2018-08-03 清华大学 A kind of Integral die-forged method of railway frog
CN109195724A (en) * 2016-06-03 2019-01-11 昭和电工株式会社 Forge processing unit (plant)
CN109702125A (en) * 2018-12-05 2019-05-03 上海交大中京锻压有限公司 A kind of automobile engine using new energy resources gear shaft enclosed forge moulding technology
CN110142362A (en) * 2019-05-28 2019-08-20 中冶重工(唐山)有限公司 The manufacturing process of lifting equipment wheel forging
CN110142361A (en) * 2019-05-28 2019-08-20 中冶重工(唐山)有限公司 The forging method of lifting equipment wheel forging

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102225455A (en) * 2011-04-13 2011-10-26 大连大高阀门有限公司 High-speed rail brace mould and forging process
CN102513486A (en) * 2011-12-16 2012-06-27 陕西宏远航空锻造有限责任公司 Die forging method for titanium alloy forge pieces
CN103752752A (en) * 2014-01-23 2014-04-30 连云港宝石精密重工科技有限公司 Finish forging die for forging aluminum alloy wheel
CN103861986A (en) * 2014-03-18 2014-06-18 北京北方车辆集团有限公司 Die set for producing end connector
CN104959518A (en) * 2015-06-26 2015-10-07 山东南山铝业股份有限公司 Method for preparing flange plate through die forging technology
CN105834348A (en) * 2016-05-25 2016-08-10 中车戚墅堰机车车辆工艺研究所有限公司 Method for forging workblank of transmission disc of locomotive
CN109195724A (en) * 2016-06-03 2019-01-11 昭和电工株式会社 Forge processing unit (plant)
EP3466559A4 (en) * 2016-06-03 2020-02-12 Showa Denko K.K. Forging device
CN106670370A (en) * 2017-03-15 2017-05-17 辽宁银捷装备科技股份有限公司 Forging die and die forging technology for brake disc hub of high speed train
CN107470541A (en) * 2017-09-14 2017-12-15 山西豪钢锻造股份有限公司 Sprocket wheel forging molding process
CN108356192B (en) * 2018-04-09 2019-09-20 清华大学 A kind of Integral die-forged method of railway frog
CN108356192A (en) * 2018-04-09 2018-08-03 清华大学 A kind of Integral die-forged method of railway frog
CN109702125A (en) * 2018-12-05 2019-05-03 上海交大中京锻压有限公司 A kind of automobile engine using new energy resources gear shaft enclosed forge moulding technology
CN110142362A (en) * 2019-05-28 2019-08-20 中冶重工(唐山)有限公司 The manufacturing process of lifting equipment wheel forging
CN110142361A (en) * 2019-05-28 2019-08-20 中冶重工(唐山)有限公司 The forging method of lifting equipment wheel forging

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Dongfeng Forging Co., Ltd.

Assignor: Dongfeng Automobile Co., Ltd.

Contract record no.: 2011420000087

Denomination of utility model: Mould for forming disc type forgings

Granted publication date: 20101229

License type: Exclusive License

Record date: 20110517

Assignee: Dongfeng Forging Co., Ltd.

Assignor: Dongfeng Automobile Co., Ltd.

Contract record no.: 2011420000087

Denomination of utility model: Mould for forming disc type forgings

Granted publication date: 20101229

License type: Exclusive License

Record date: 20110517

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20101229