CN108080899A - A kind of pull-type punching press clutch case - Google Patents
A kind of pull-type punching press clutch case Download PDFInfo
- Publication number
- CN108080899A CN108080899A CN201711414782.3A CN201711414782A CN108080899A CN 108080899 A CN108080899 A CN 108080899A CN 201711414782 A CN201711414782 A CN 201711414782A CN 108080899 A CN108080899 A CN 108080899A
- Authority
- CN
- China
- Prior art keywords
- clutch case
- diameter
- punching press
- pull
- big
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D13/00—Friction clutches
- F16D13/58—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D13/00—Friction clutches
- F16D13/58—Details
- F16D13/72—Features relating to cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2250/00—Manufacturing; Assembly
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2300/00—Special features for couplings or clutches
- F16D2300/26—Cover or bell housings; Details or arrangements thereof
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
To provide a kind of fit precision higher, for the purpose of the pull-type punching press clutch case that bearing capacity is stronger, work is more stable and production cost is lower, the technological process of centre bore → rotary-cut periphery aperture → trimming → school shape is rushed using blanking → positive big pateriform of drawing outer profile → reverse drawing center pit →, it abandons original compound flushing from center to both sides and draws mode, and the first big pateriform of positive drawing outer profile is used, and then the technological process of reverse drawing center pit.Air regulator hole, the elastic element that the setting of rotary-cut through hole is fixedly connected with platen, to play cushioning effect are opened in clutch case excircle.Blank material is diameter 319.15mm, and thickness is the circular plate of 2mm, and clutch case thickness is 2mm, and external profile diameter 180mm, center pit and center-hole diameter are respectively 140mm and 110mm.Using the blank holder of interior circular diameter 225mm outside diameters 300mm, compound drawing is carried out with the pressure-pad-force of 36128.3N for the big pateriform of positive drawing outer profile for the first time.Forcing press parameter, blade clearance 0.44mm, coefficient of friction 0.125, drawing velocity 3000mm/s are obtained by simulation analysis of computer.
Description
Technical field
The present invention relates to a kind of design of pull-type punching press clutch case and punch formings to emulate, belong to machine-building and its from
Dynamicization complex art field.
Background technology
Sheet Metal Forming Technology is using plate as raw material, and plate is processed with stamping equipment using model, is shaped to have
There is the advanced metal forming process of definite shape and size.According to method characteristic, punch forming process is broadly divided into separation work
Sequence and molding procedure.Wherein the part mold separation in plate is out obtained planar part by separation circuit system, such as punching,
Punching etc..And moulding process is then for variously-shaped part, such as drawing, bending by plate blank mould molding.
In the automotive industry, punch forming process is widely applied.This is because its with production efficiency it is high, it is energy saving, section material, system
Manufacturing accuracy is high, interchangeability is good and is easily achieved lightweight etc. integrates economic results in society.The punch forming process of body outer skin
It is most complicated most typical technique in stamping technology.
For clutch case as a complicated lid formula part, punch forming difficulty is big.In traditional mode of production, due to from
The diameter of clutch lid is big, and the drawing coefficient of center pit is small, and shaping difficulty is big, therefore compound flushing of the more options from center to both sides
Drawing mode.But this molding mode technological process is relatively complicated, and technical parameter is more, and the R&D and production cycle is long and of high cost, has all
More problems.Therefore the traditional process of innovation optimization herein, the first big pateriform of positive drawing outer profile, and then reverse drawing center pit,
Technical parameter is obtained with reference to computer dynamic stimulating, punch forming step is greatly reduced, reduces cost.
The content of the invention
It is an object of the invention to provide a kind of fit precision higher, bearing capacity is stronger, work is more stable and is produced into
This lower pull-type punching press clutch case.It is characterized in that:There is provided the clutch case stamping forming optimization according to expected purpose
Technological process reaches part Essential Performance Requirements by techniques such as compound drawing punching shearings;By adjusting lid and platen flywheel
And the connection of release bearing coordinates with work, provides the clutch case more optimized.
The pull-type punching press clutch cover structure is complex, proposes shaping scheme:Blanking → positive drawing outer profile is shallow greatly
Dish → reverse drawing center pit → rushes centre bore → rotary-cut periphery aperture → trimming → school shape.Punch forming clutch case is necessary
By compound drawing and punching.It is excessive due to drawing coefficient in drawing outer rim to be likely to cause if first reverse drawing pit
The crimp of heart district generates partial drape even fracture failure, is unfavorable for being punched center hole, while is also required to more blanks
Material, improves cost.Clutch case thickness be 2mm~4mm, external profile diameter be 170mm~180mm, center-hole diameter 110mm~
115mm.Uniformly distributed nine reinforcing ribs are covered, and open up ventilation device, while the flange at lid inner periphery.
It is 2mm to provide clutch case thickness, external profile diameter 180mm, center pit and center-hole diameter be respectively 140mm and
110mm.Nine reinforcing ribs of punching are being covered, are being distributed on the reference circle of diameter 162mm, while excircle opens three diameter 16mm
Ventilation fenestra, the elastic element that is fixedly connected with platen of through hole setting of rotary-cut is covered, to play cushioning effect and raising is held
Loading capability.Blank material has that subregion is thinning during shaping, but comparatively ratio is smaller for thinning part, part
Whole average thickness and the original depth of blank are substantially equally big.Again by the conservation of mass, the big I of expansion of blank
To be calculated by the equivalent principle of area before and after drawing.It is blank area wherein before drawing, after drawing for part area again
Count the surplus of deburring in.Gold rule calculates in blank dimension is used long, and diameter 319.15mm is calculated in trimming allowance 3mm
Blank plate.
First outer rim punching press provides blank holder, interior circular diameter 225mm, outside diameter 300mm;Pressure-pad-force F=AQ, wherein A
For effective flanging area, unit is mm2, Q is unit blank holder force, and unit is Mpa, calculates to obtain first drawing pressure-pad-force
36128.3N。
Simulation analysis are carried out using engineering software, dynamic parameter adjusts to obtain optimum value in a computer.Usually there is punching
Gap width z is cut out, coefficient of friction is f and drawing velocity is v.By Multi simulation running, place of safety and there is corrugation to become after ensureing to be molded
Under conditions of gesture area maximum area, optimal parameter z=0.44mm f=0.125, v=3000mm/s are obtained.First drawing uses
Annular blank holder, inner circle are diameter 225mm, outside diameter 300mm, and pressure-pad-force calculates according to effective contact area
36128.3N.Die size during punching is provided, bilateral gap is controlled, by dIt is convex=d+x Δs-δ obtains convex mould diameter 107.12mm, part
Tolerance takes 0.24, and the coefficient of waste takes 0.5, and trimming allowance and punch size are δ=3mm and d=110mm respectively.Thus finally carry
For the technological process after optimization, this pull-type punching press clutch case, thickness 2mm, outer profile circular diameter 180mm, centre bore are obtained
Diameter 110mm.Covering punching has nine to be uniformly distributed reinforcing rib, and the elasticity that the through hole setting of rotary-cut is fixedly connected with platen is first
Part covers loaded and operating pressure when effectively reducing clutch work, plays cushioning effect, while increasing heat radiation area, open
Multiple heat emission holes.
Of the invention compared with existing clutch case has the advantage that:
With longer service life and better mechanical performance, nine equally distributed reinforcing ribs are designed, hole is opened and adds bullet
Spring abutment reduces the carrying of lid on the basis of working characteristics is ensured;It is excessively high that friction surface is effectively reduced by design ventilation fenestra
Temperature easily facilitates ventilation and heat;The first small rear big punching press order of traditional lid formula part is abandoned, it is first whole using compound drawing
Shaping and then locally-shaped scheme greatly reduce the ratio of part fold fracture after shaping, improve production efficiency and save
Produce and process cost;It is theoretical with reference to finite element analysis, the debugging of dynamic data is carried out with Computer Simulation, it is optimal dynamic obtaining
The feasibility of scheme is demonstrated while state parameter, improves research and development of products efficiency.
Below by specific embodiment, the present invention will be further described, but is not meant to the scope of the present invention
Limitation.
Description of the drawings
Fig. 1 is pull-type punching press clutch case graphics, wherein 1 is the big pateriform of outer profile, 2 be reinforcing rib, and 3 be central fovea
Hole, 4 be centre bore, and 5 be ventilation fenestra.
Specific embodiment
Embodiment one
Blank diameter 319.15mm, the circular plate of thickness 2mm are obtained after blanking;Forcing press parameter is adjusted, is taken between punching
Gap 0.44mm, coefficient of friction 0.125, drawing velocity 3000mm/s, the big pateriform of positive drawing outer profile, straight using inner circle for the first time
The blank holder of footpath 225mm outside diameters 300mm carries out compound drawing with the pressure-pad-force of 36128.3N, big in the outer profile of shaping
Reverse drawing pit on the basis of pateriform part, punching centre bore rotary-cut simultaneously ventilation fenestra and through hole, the through hole of rotary-cut is set and pressure
The elastic element that disk is fixedly connected, last trimming school shape.
Claims (4)
1. a kind of pull-type punching press clutch case, it is characterised in that optimize Sheet Metal Forming Technology flow:Blanking → positive drawing outer profile is big
Pateriform → reverse drawing center pit → rushes centre bore → rotary-cut periphery aperture → trimming → school shape;The flow abandon it is original therefrom
The compound flushing on the heart to both sides draws mode, and uses the first big pateriform of positive drawing outer profile, and then the technique of reverse drawing center pit
Flow;Wherein, lid thickness is 2mm~4mm, and external profile diameter is 170mm~180mm, center-hole diameter 110mm~115mm;It covers
Uniformly distributed nine reinforcing ribs, and ventilation device is opened up, while the flange at lid inner periphery;Finally obtain a kind of fit precision higher,
The pull-type punching press clutch case that bearing capacity is stronger, work is more stable and production cost is lower.
2. a kind of pull-type punching press clutch case according to claim 1, it is characterized in that ventilation device, mainly in clutch
Lid excircle opens the ventilation fenestra of three equally distributed diameter 16mm;The through hole for covering rotary-cut sets what is be fixedly connected with platen
Elastic element, to play cushioning effect.
3. a kind of pull-type punching press clutch case according to claim 1, it is characterized in that circular blanks material, blank diameter are
319mm~412mm, thickness are consistent substantially with lid;Part tolerance takes 0.24, pressure wear coefficient 0.5~0.6, more than deburring
Amount is less than 5mm.
4. a kind of pull-type punching press clutch case according to claim 1, it is characterized in that core punching press parameter, blanking die just
Bilateral gap z controls begin in 0.38≤z≤0.54, unit is mm, and coefficient of friction f, drawing velocity v are controlled in 0.1≤f
In the range of≤0.18,2500mm/s≤v≤3300mm/s.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711414782.3A CN108080899A (en) | 2017-12-20 | 2017-12-20 | A kind of pull-type punching press clutch case |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711414782.3A CN108080899A (en) | 2017-12-20 | 2017-12-20 | A kind of pull-type punching press clutch case |
Publications (1)
Publication Number | Publication Date |
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CN108080899A true CN108080899A (en) | 2018-05-29 |
Family
ID=62178913
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201711414782.3A Pending CN108080899A (en) | 2017-12-20 | 2017-12-20 | A kind of pull-type punching press clutch case |
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CN (1) | CN108080899A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111085832A (en) * | 2019-12-15 | 2020-05-01 | 长春一东离合器股份有限公司 | Clutch cover manufacturing procedure optimization process |
CN113909820A (en) * | 2021-10-26 | 2022-01-11 | 中国航发贵州红林航空动力控制科技有限公司 | Method for processing wave spring |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07238953A (en) * | 1994-02-25 | 1995-09-12 | Daikin Mfg Co Ltd | Clutch cover assembly |
CN103752690A (en) * | 2014-01-23 | 2014-04-30 | 东莞虹日金属科技有限公司 | Clutch cap forming process and forming equipment thereof |
-
2017
- 2017-12-20 CN CN201711414782.3A patent/CN108080899A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07238953A (en) * | 1994-02-25 | 1995-09-12 | Daikin Mfg Co Ltd | Clutch cover assembly |
CN103752690A (en) * | 2014-01-23 | 2014-04-30 | 东莞虹日金属科技有限公司 | Clutch cap forming process and forming equipment thereof |
Non-Patent Citations (3)
Title |
---|
刘纪祥: "DSP双离合器盖冲压成形模拟分析", 《中国优秀硕士学位论文全文数据库工程科技II辑》 * |
王志明等: "汽车离合器盖成形工艺和模具设计", 《汽车工艺与材料》 * |
王翠凤,董武: "拉式离合器盖冲压成形工艺分析及模具设计", 《机械工程师》 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111085832A (en) * | 2019-12-15 | 2020-05-01 | 长春一东离合器股份有限公司 | Clutch cover manufacturing procedure optimization process |
CN113909820A (en) * | 2021-10-26 | 2022-01-11 | 中国航发贵州红林航空动力控制科技有限公司 | Method for processing wave spring |
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WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180529 |
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