CN102284606B - Optimized stamping process for diaphragm spring with DST (direct solution treatment) structure - Google Patents

Optimized stamping process for diaphragm spring with DST (direct solution treatment) structure Download PDF

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CN102284606B
CN102284606B CN 201110224036 CN201110224036A CN102284606B CN 102284606 B CN102284606 B CN 102284606B CN 201110224036 CN201110224036 CN 201110224036 CN 201110224036 A CN201110224036 A CN 201110224036A CN 102284606 B CN102284606 B CN 102284606B
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punch
die
window
mesopore
blanking
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CN102284606A (en
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梁广才
钟建军
吴天生
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Guilin Fuda Group Co Ltd
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Guilin Fuda Group Co Ltd
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Abstract

The invention discloses an optimized stamping process for a diaphragm spring with a DST structure, comprising the following steps of: placing a wear-free 50CrVA cold-rolled sheet on a punch press to blank and stamp a mesopore, blanking a diaphragm outer circle shape, a mesopore and a window shape with gaps by a window mould, then stamping a separated finger slot at one time on the punch press via a separated finger slot stamping die; directly pressing a window fillet at one time on a press via a window fillet mould; and finally performing heat treatment according to a conventional method. In the invention, the two separated procedures of blanking and stamping a mesopore and a window are combined into one procedure to process, which increases the production efficiency, decreases the production cost, decreases the accumulated error of a plurality of procedures and increases the dimensional precision of product; moreover, the problems of unreasonable distribution, non-uniform separated finger width, bad window positional tolerance and the like of diaphragm spring processing are solved; moreover, the product fatigue life is greatly increased; and shaking phenomenon while starting is avoided.

Description

DST structural diaphragm spring is optimized punch machining process
Technical field
The present invention relates to the processing of DST diaphragm spring, specifically DST structural diaphragm spring is optimized punch machining process.
Background technology
Diaphragm spring is the obligato part of automobile clutch, and its life-span and performance have very large decision impact to the clutch quality, and particularly the requirement of the clutch of DST structure is higher, and the quality that can say diaphragm spring is exactly the quality of clutch.Present DST diaphragm spring, the technological process of usually adopting are that blanking rushes mesopore → rush window → rush separation finger → squeeze window fillet → turning angle and turns heat treatment step and complete, and technological process is more and single, and production efficiency is low, and the product size precision is not high.
Summary of the invention
The objective of the invention is for overcoming the deficiencies in the prior art, and provide a kind of DST structural diaphragm spring to optimize punch machining process, use this processes, not only can reduce operation, enhance productivity, and can improve the product size precision, increase the service life.
DST structural diaphragm spring of the present invention is optimized punch machining process, comprises the steps:
(1) arrange a DST structural diaphragm spring blanking, rush mesopore, window die;
(2) raw material are placed on DST diaphragm spring blanking, rush on the mould of mesopore, window;
(3) on punch press by the gapped shape that once drops out diaphragm cylindrical shape, mesopore and window of above-mentioned mould;
(4) on punch press, once go out the separation finger groove by separation finger groove film;
(5) pass through the direct disposable extrusion window fillet of window fillet mould at press;
(6) conventional heat treatment.
Described diaphragm spring blanking, rush mesopore, window die, comprise cope match-plate pattern, upper padding plate, punch retainer, die is embraced plate, die, the window punch, the loading and unloading material plate, lower stripper, the mesopore punch, punch-die, lower bolster, lower bolster, pin stop, guide pin bushing, guide pillar and unloading bolt, the loading and unloading material plate is fixed on the punch retainer by unloading bolt, punch retainer is fixed by screws on the cope match-plate pattern, be provided with upper padding plate between punch retainer and the cope match-plate pattern, guide pin bushing is loaded on cope match-plate pattern, be provided with a mesopore punch and window punch on the punch retainer, the window punch evenly distributes in a circumferential direction, die is fixed by screws on the punch retainer and has die to embrace plate and holds tightly, lower stripper is fixed under the lower bolster by unloading bolt, the corresponding guide pin bushing of guide pillar is loaded on lower bolster, be provided with the hole corresponding with mesopore punch and window punch and punch corresponding to die on the punch-die, punch-die is fixed by screws on the lower bolster, is provided with lower bolster between punch-die and the lower bolster.
Described punch-die is comprised of blanking punch, mesopore die, window die, and the centre of punch-die is the mesopore die, and cylindrical is blanking punch, and the window die is between mesopore die and blanking punch.
Adopt this optimization processing technology machined diaphragm spring, production efficiency can improve 200%, and product size precision rate reaches 98%.
The invention has the beneficial effects as follows:
1, makes the synthetic procedure processing of blanking, mesopore and window two procedures of original mould separate machined, the angle of collapsing is used when bull nose, cancelled the multiple working procedures such as turning angle, extracted efficient, reduced cost;
2, reduce the burr that inter process produces, eliminated the error of multiple working procedure accumulation, improved the product size precision;
3, solved diaphragm spring processing unreasonable distribution, the problem such as it is uneven to separate finger beam, and the window's position degree is bad;
4, product improves fatigue life greatly, and starting non-jitter phenomenon occurs.
Description of drawings
Fig. 1 is DST structural diaphragm spring blanking of the present invention, rush the structural representation of mesopore, window die;
Fig. 2 is the top view of Fig. 1.
The specific embodiment
With reference to Fig. 1, DST structural diaphragm spring blanking of the present invention, rush mesopore, window die, comprise cope match-plate pattern 1, screw 2, upper padding plate 3, punch retainer 4, die is embraced plate 5, die 6, window punch 7, loading and unloading material plate 8, lower stripper 9, mesopore punch 10, unloading bolt 11, punch-die 12, lower bolster 13, lower bolster 14, rubber 15, pin stop 16, guide pillar 17, guide pin bushing 18 and straight pin 19, window punch 7 and mesopore punch 10 are fixed on the punch retainer 4, die 6 is fastened on the punch retainer 4 by screw 2 and has die to embrace plate 5 and holds tightly, in order to prevent that plate from blocking, also be provided with loading and unloading material plate 8, lower stripper 9 and unloading bolt 11, loading and unloading material plate 8 is fixed on the punch retainer 4 by unloading bolt 11, lower stripper 9 is fixed on lower bolster 14 times by unloading bolt 11, punch retainer 4 is fixed on the cope match-plate pattern 1 by screw 2, be provided with upper padding plate 3 between punch retainer 4 and the cope match-plate pattern 1, guide pin bushing 18 is loaded on the cope match-plate pattern 1, guide pillar 17 corresponding guide pin bushings 18 are loaded on the lower bolster 14, be provided with the hole 20 corresponding with mesopore punch 10 and window punch 7 on the punch- die 12,21 and the punch 22 of die 6 correspondences, as shown in Figure 2, punch-die 12 is fixed on the lower bolster 14 by screw 2, is provided with lower bolster 13 between punch-die 12 and the lower bolster 14.During work, mould moves downward, die, window punch, mesopore punch carry out blanking, punching simultaneously, once finish two process operations, compare with present single process operations, improved efficient, reduced cost, reduce the burr that inter process produces, eliminated the error of accumulation, improved the product size precision.
DST structural diaphragm spring of the present invention is optimized punch machining process, comprises the steps:
(1) blanking, rush mesopore, window: the 50CrVA cold-reduced sheet that will exempt to grind, on punch press by above-mentioned blanking, rush mesopore, gapped diaphragm cylindrical shape, mesopore, the window shape of once dropping out of window die, when namely working, mould moves downward, die, window punch, mesopore punch carry out blanking, punching simultaneously, once finish two process operations;
(2) rush the separation finger groove: on punch press, once go out the separation finger groove by rushing the separation finger channel mould;
(3) squeeze the window fillet: pass through the direct disposable extrusion window fillet of window fillet mould at press;
(4) heat-treat according to a conventional method.
The present invention is when reducing operation, the more important thing is and cancelled the car fillet, directly when blanking, design the gap, bull nose is worked as at the angle of collapsing to be used, improve the production efficiency of diaphragm spring, reduce cost and eliminate the error of accumulating, improve the product size precision, improve the qualification rate of product, life-span and performance all are greatly improved.

Claims (2)

1. a DST structural diaphragm spring is optimized punch machining process, it is characterized in that: comprise the steps:
(1) arrange a DST structural diaphragm spring blanking, rush mesopore, window die; Described blanking, rush mesopore, window die, comprise cope match-plate pattern, upper padding plate, punch retainer, die is embraced plate, die, the window punch, the loading and unloading material plate, lower stripper, the mesopore punch, punch-die, lower bolster, lower bolster, pin stop, guide pin bushing, guide pillar and unloading bolt, the loading and unloading material plate is fixed on the punch retainer by unloading bolt, punch retainer is fixed by screws on the cope match-plate pattern, be provided with upper padding plate between punch retainer and the cope match-plate pattern, guide pin bushing is loaded on cope match-plate pattern, be provided with a mesopore punch and window punch on the punch retainer, the window punch evenly distributes in a circumferential direction, die is fixed by screws on the punch retainer and has die to embrace plate and holds tightly, lower stripper is fixed under the lower bolster by unloading bolt, the corresponding guide pin bushing of guide pillar is loaded on lower bolster, be provided with the hole corresponding with mesopore punch and window punch and punch corresponding to die on the punch-die, punch-die is fixed by screws on the lower bolster, is provided with lower bolster between punch-die and the lower bolster;
(2) raw material are placed on DST diaphragm spring blanking, rush on the mould of mesopore, window;
(3) on punch press by the gapped shape that once drops out diaphragm cylindrical shape, mesopore and window of above-mentioned mould;
(4) on punch press, once go out the separation finger groove by the separation finger channel mould;
(5) pass through the direct disposable extrusion window fillet of window fillet mould at press;
(6) conventional heat treatment.
2. DST structural diaphragm spring according to claim 1 is optimized punch machining process, it is characterized in that: described punch-die is comprised of blanking punch, mesopore die, window die, the centre of punch-die is the mesopore die, cylindrical is blanking punch, and the window die is between mesopore die and blanking punch.
CN 201110224036 2011-08-05 2011-08-05 Optimized stamping process for diaphragm spring with DST (direct solution treatment) structure Active CN102284606B (en)

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CN102728708A (en) * 2012-07-17 2012-10-17 吉林省瑞恒机械有限公司 Cold-hot compound stamping forming method for steel plate with ultrahigh strength
CN102861817B (en) * 2012-09-07 2015-04-15 宁波市奇精机械有限公司 Blanking moulding die for spring ring
CN102861813A (en) * 2012-10-18 2013-01-09 苏州中佳精密机械有限公司 Processing method and mould of special-shaped parts
CN103111523B (en) * 2013-03-05 2015-02-04 桂林福达股份有限公司 Optional processing process of clutch driven disc
CN103920791A (en) * 2014-04-23 2014-07-16 靖江三鹏汽车模具制造有限公司 Improved technology of cover plate blanking-punching compound die of flywheel shock mitigation system
CN104338820B (en) * 2014-10-20 2016-04-27 重庆长安离合器制造有限公司 Diaphragm spring continuous stamping method
CN105251875A (en) * 2015-10-17 2016-01-20 无为县鑫发盛汽车零部件有限公司 Automobile part molding die
CN106216490A (en) * 2016-08-16 2016-12-14 湖北大帆汽车零部件有限公司 A kind of diaphragm spring Sheet Metal Forming Technology
CN106271405A (en) * 2016-08-16 2017-01-04 湖北大帆汽车零部件有限公司 A kind of diaphragm spring processing technique
CN107243576A (en) * 2017-07-31 2017-10-13 桂林福达重工锻造有限公司 A kind of processing method of automobile clutch damping disk(-isc)
CN108176763B (en) * 2017-12-22 2022-09-06 湖北大帆汽车零部件有限公司 Process for continuously reducing load attenuation rate of diaphragm spring
CN112588995B (en) * 2020-11-11 2022-07-08 长春一东离合器股份有限公司 Method for improving contact between damping spring and stamping part in clutch
CN112589380B (en) * 2020-11-16 2023-02-03 长春一东离合器股份有限公司 Method for forming finger end of diaphragm spring for bending finger of clutch
CN112547902B (en) * 2021-01-25 2022-08-05 桂林福达股份有限公司 Diaphragm spring processing technology

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JPH08141228A (en) * 1994-11-15 1996-06-04 Sanzen Seiko Kk Production of outer edge for electrical razor
CN101664788A (en) * 2009-09-09 2010-03-10 浙江龙华汽配制造有限公司 Manufacture process improvement of diaphragm springs
CN201511079U (en) * 2009-09-21 2010-06-23 湖北大帆汽车零部件有限公司 Stamping die for processing clutch diaphragm spring
CN201862694U (en) * 2010-11-18 2011-06-15 湖北大帆汽车零部件有限公司 Stamping die for diaphragm spring

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