CN204262259U - The half-closed mould of monoblock type Rear Dowel Support forging - Google Patents

The half-closed mould of monoblock type Rear Dowel Support forging Download PDF

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Publication number
CN204262259U
CN204262259U CN201420703681.3U CN201420703681U CN204262259U CN 204262259 U CN204262259 U CN 204262259U CN 201420703681 U CN201420703681 U CN 201420703681U CN 204262259 U CN204262259 U CN 204262259U
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CN
China
Prior art keywords
forging
die
blocking
finish
push rod
Prior art date
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.)
Expired - Fee Related
Application number
CN201420703681.3U
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Chinese (zh)
Inventor
宋继林
徐金高
何涛
陈刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongfeng (shiyan) Auto Forged Steel Parts Co Ltd
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Dongfeng (shiyan) Auto Forged Steel Parts Co Ltd
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Filing date
Publication date
Application filed by Dongfeng (shiyan) Auto Forged Steel Parts Co Ltd filed Critical Dongfeng (shiyan) Auto Forged Steel Parts Co Ltd
Priority to CN201420703681.3U priority Critical patent/CN204262259U/en
Application granted granted Critical
Publication of CN204262259U publication Critical patent/CN204262259U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model proposes the half-closed mould of a kind of monoblock type Rear Dowel Support forging, comprise mould bases, upper die and lower die, upper die and lower die are arranged on mould bases respectively, on upper die and lower die, correspondence is provided with the top and the bottom of blocking die cavity and finish-forging die cavity respectively, be provided with bridge portion in blocking die cavity outside, bridge portion is arranged on counterdie, makes blocking die cavity form half-closed die forging during use, be provided with blocking push rod at blocking cavity bottom, blocking top stem casing is connected on counterdie; Finish-forging die cavity is open die forging, impressing forging, is provided with finish-forging push rod at finish-forging cavity bottom, and finish-forging top stem casing is connected on counterdie; Be provided with one piece of floating roof for supporting in the lower end correspondence of blocking push rod and finish-forging push rod, floating roof is placed in bottom counterdie by the connection push rod on mould bases.This mould achieves the global formation of Rear Dowel Support, and stock utilization and forging quality significantly improve, and increases work efficiency, saves production cost with this.

Description

The half-closed mould of monoblock type Rear Dowel Support forging
Technical field
The utility model relates to the semi-enclosed mold for forming of a kind of integral automobile rear pin shaft support forge piece, belongs to technology of die manufacturing field.
Background technology
Automobile hind axle pin bearing is made up of ring flange and bearing pin two parts, and its structure comprises monoblock type and split type two kinds.Monoblock type Rear Dowel Support ring flange and pivot pin is forged into be integrated; Split type Rear Dowel Support ring flange and pivot pin is separated to manufacture, and press-fits integral respectively after processing again.Adopting monoblock type forging ratio, split type to be manufactured on difficulty on moulding process much bigger, be mainly manifested in forging bar portion and dish portion deflection in forging process large, its depths and edge are all difficult to be full of, mould very easily weares and teares, Forming Quality stability and reliability poor, therefore also higher to the control overflow of production process.
For this forging, adopt both at home and abroad mostly open die forging, impressing forging technique to produce, the method exists that stock utilization is low, the defect of forging Forming Quality difference; And adopting closed-die forging technique to have some limitations, range of application is narrower.Therefore, adopt half-closed forging molding process to be a kind of effective way addressed these problems, for this reason, development and Design goes out corresponding mould and just seems particularly important.
Summary of the invention
For improving forging condition of molding, improving stock utilization and Forming Quality, increasing work efficiency, the utility model proposes the semi-enclosed mold for forming of a kind of integral automobile rear pin shaft support forge piece.
For this reason, the technical solution of the utility model is: the half-closed mould of monoblock type Rear Dowel Support forging, comprise mould bases, upper die and lower die, upper die and lower die respectively correspondence are arranged on mould bases, it is characterized in that: on upper die and lower die, correspondence is provided with the top and the bottom of blocking die cavity and finish-forging die cavity respectively, is provided with bridge portion, makes blocking die cavity form half-closed die forging during work in the outside of blocking die cavity, be provided with blocking push rod at blocking cavity bottom, blocking push rod is arranged in counterdie; Finish-forging die cavity is open die forging, impressing forging, is provided with finish-forging push rod at finish-forging cavity bottom, and finish-forging push rod is arranged in counterdie; Be provided with one piece of floating roof for supporting in the lower end of blocking push rod and finish-forging push rod, floating roof is placed in bottom counterdie by the connection push rod on mould bases.
Using method:
During use, be first arranged on the mould bases of fly press by corresponding respectively for upper die and lower die, use pressing plate fastening again with behind cross key location; Then Bear-grudge material is placed in the blocking die cavity on counterdie, when forcing press come downwards to mould close time, Bear-grudge material is first one-step forming in blocking die cavity, utilize the bridge portion that blocking die cavity is arranged outward, make Bear-grudge expect shaping close to extrusion and compression in the impression closed, extrude the upsetting placing portion simultaneously of bar portion of Rear Dowel Support, form overall hair Bear-grudge, rear mold open, floating roof jack-up, promotes blocking push rod and moves upward and to be ejected from blocking die cavity by the overall hair Bear-grudge extruded; By hair Bear-grudge, the finish-forging die cavity put on counterdie completes finally shaping again, obtains the forging of monoblock type Rear Dowel Support, and namely it to obtain the finished product of monoblock type Rear Dowel Support through fine finishining after being ejected by finish-forging push rod.
Beneficial effect:
The utility model carries out just one-step forming by adopting the die forging of semi-enclosed blocking die cavity, ensureing that the flange of bearing and bearing pin can once be full of when carrying out global formation, reducing overlap, improve stock utilization; Adopt upsetting squeeze simultaneously and flatten two operations and carry out base, reduce offsetting error, guarantee position stability, improve finish-forging quality.This mould achieves original automobile hind axle pin bearing and is difficult to shaping bar portion and the global formation in dish portion, and stock utilization and forging quality significantly improve, and increase work efficiency with this, save production cost.
Accompanying drawing explanation
Fig. 1 is cross-sectional view of the present utility model;
Number in the figure is: 1, patrix; 2, counterdie; 3, Rear Dowel Support blocking die cavity; 4, Rear Dowel Support finish-forging die cavity; 5, bridge portion; 6, blocking push rod; 7, finish-forging push rod; 8, floating roof.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, the half-closed mould of a kind of monoblock type Rear Dowel Support forging, comprises mould bases, patrix 1 and counterdie 2, is arranged on mould bases, then uses pressing plate fastening by patrix 1 and counterdie 2 respectively by cross key correspondence; Patrix 1 is processed with the first half of Rear Dowel Support blocking die cavity and the first half of described Rear Dowel Support finish-forging die cavity respectively side by side, counterdie 2 is processed with the latter half corresponding with Rear Dowel Support blocking die cavity the first half and the latter half corresponding with described Rear Dowel Support finish-forging die cavity respectively side by side, on mould, forms a complete Rear Dowel Support blocking die cavity 3 and a complete Rear Dowel Support finish-forging die cavity 4 when upper and lower mould closes; Bridge portion 5 is provided with in the outside of Rear Dowel Support blocking die cavity 3, Rear Dowel Support blocking die cavity 3 is made to form a half-closed die forging during use, in the bottom of Rear Dowel Support blocking die cavity 3, a blocking push rod 6 is installed, blocking push rod 6 is arranged in counterdie 2 by stepped hole; Described Rear Dowel Support finish-forging die cavity 4 is open die forging, impressing forging, installs a finish-forging push rod 7 in the bottom of Rear Dowel Support finish-forging die cavity 4, is arranged in counterdie 2 by finish-forging push rod 7 by stepped hole; One piece is installed for supporting the floating roof 8 of blocking push rod and finish-forging push rod in the lower end correspondence of blocking push rod 6 and finish-forging push rod 7, the bottom of described floating roof 8 is fixedly connected on mould bases by a T-shaped push rod, drive floating roof move up and down thus realize the jack-up to blocking push rod or finish-forging push rod by T-shaped push rod during use, complete liftout action with this.
During use, be first arranged on the mould bases of fly press by corresponding respectively for upper die and lower die, use pressing plate fastening again with behind cross key location; Then 38MnSiV5 non-hardened and tempered steel Bear-grudge material is placed in the blocking die cavity on counterdie, starting pressure machine, when patrix come downwards to mould close time, Bear-grudge material is first one-step forming in blocking die cavity, utilize the bridge portion that blocking die cavity is arranged outward, make Bear-grudge expect close to close impression in through extrusion and jumping-up two work steps, extrude Rear Dowel Support bar portion and upsetting placing portion forms overall hair Bear-grudge, upper and lower mould is opened afterwards, floating roof jack-up, promotes the blocking push rod on counterdie moves to be ejected from blocking die cavity by the overall hair Bear-grudge extruded; Finally hair Bear-grudge is put into the finish-forging die cavity on counterdie, namely hair Bear-grudge obtaining the forging of monoblock type Rear Dowel Support in open type finish-forging die cavity after again shaping, then obtains the finished product of monoblock type Rear Dowel Support through fine finishining after being ejected by finish-forging push rod.
The utility model carries out just one-step forming by adopting semi-enclosed blocking die cavity, ensureing that the flange of bearing and bearing pin can once be full of when carrying out global formation, reducing overlap, improve stock utilization; Adopt upsetting squeeze simultaneously and flatten two operations and carry out base, reduce offsetting error, guarantee position stability, improve finish-forging quality.This mould achieves automobile hind axle pin bearing and is difficult to shaping bar portion and the global formation in dish portion, and by practical proof, its stock utilization reaches more than 80%, and the disqualification rate of forging is below 1%, and production efficiency reaches 15 seconds/part, significantly improves the income of enterprise.

Claims (1)

1. the half-closed mould of monoblock type Rear Dowel Support forging, comprise mould bases, upper die and lower die, upper die and lower die respectively correspondence are arranged on mould bases, it is characterized in that: on upper die and lower die, correspondence is provided with the top and the bottom of blocking die cavity and finish-forging die cavity respectively, bridge portion is provided with in the outside of blocking die cavity, make blocking die cavity form half-closed die forging during work, be provided with blocking push rod at blocking cavity bottom, blocking push rod is arranged in counterdie; Finish-forging die cavity is open die forging, impressing forging, is provided with finish-forging push rod at finish-forging cavity bottom, and finish-forging push rod is arranged in counterdie; Be provided with one piece of floating roof for supporting in the lower end of blocking push rod and finish-forging push rod, floating roof is placed in bottom counterdie by the connection push rod on mould bases.
CN201420703681.3U 2014-11-21 2014-11-21 The half-closed mould of monoblock type Rear Dowel Support forging Expired - Fee Related CN204262259U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420703681.3U CN204262259U (en) 2014-11-21 2014-11-21 The half-closed mould of monoblock type Rear Dowel Support forging

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420703681.3U CN204262259U (en) 2014-11-21 2014-11-21 The half-closed mould of monoblock type Rear Dowel Support forging

Publications (1)

Publication Number Publication Date
CN204262259U true CN204262259U (en) 2015-04-15

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105290291A (en) * 2015-11-03 2016-02-03 江苏龙城精锻有限公司 Closed pre-forging molding die for special-shaped oil spray device body workblank and process of closed pre-forging molding die
CN106001358A (en) * 2016-05-17 2016-10-12 山东大学 Semi-closed type forging die used for forging of bevel gear and forging method thereof
CN109351905A (en) * 2018-11-20 2019-02-19 中国航发贵州黎阳航空动力有限公司 A kind of hot-work die of slender lobule body type face blade
CN110479938A (en) * 2019-08-01 2019-11-22 中冶重工(唐山)有限公司 The forging and molding mold and manufacturing process of flanged ball valve forging
WO2021237815A1 (en) * 2020-05-27 2021-12-02 浙江跃进机械有限公司 Steel piston forging die

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105290291A (en) * 2015-11-03 2016-02-03 江苏龙城精锻有限公司 Closed pre-forging molding die for special-shaped oil spray device body workblank and process of closed pre-forging molding die
CN105290291B (en) * 2015-11-03 2017-09-19 江苏龙城精锻有限公司 The enclosed blocking shaping dies and its technique of a kind of special-shaped oil injector body blank
CN106001358A (en) * 2016-05-17 2016-10-12 山东大学 Semi-closed type forging die used for forging of bevel gear and forging method thereof
CN109351905A (en) * 2018-11-20 2019-02-19 中国航发贵州黎阳航空动力有限公司 A kind of hot-work die of slender lobule body type face blade
CN109351905B (en) * 2018-11-20 2020-09-29 中国航发贵州黎阳航空动力有限公司 Hot-working die for thin blade body profile blades
CN110479938A (en) * 2019-08-01 2019-11-22 中冶重工(唐山)有限公司 The forging and molding mold and manufacturing process of flanged ball valve forging
WO2021237815A1 (en) * 2020-05-27 2021-12-02 浙江跃进机械有限公司 Steel piston forging die

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150415

Termination date: 20181121