CN108746340A - A kind of stamping parts production technology - Google Patents
A kind of stamping parts production technology Download PDFInfo
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- CN108746340A CN108746340A CN201810759492.0A CN201810759492A CN108746340A CN 108746340 A CN108746340 A CN 108746340A CN 201810759492 A CN201810759492 A CN 201810759492A CN 108746340 A CN108746340 A CN 108746340A
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- die
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- 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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
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- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
The invention discloses a kind of stamping parts production technologies, include the following steps：（1）Separation：Blanking first, it is punched along closed curve with punch die, it is part to sweep away part, for manufacturing variously-shaped flat part, it is punched along closed curve with punch die, it is waste material, then deburring to sweep away part, the edge of formation of parts is repaiied and cuts neat or is cut into definite shape, punch die is used in combination to generate separation along the punching of not closed curve；（2）Forming：Various open hollow parts are made in plate blank forming, the edge of plate or semi-finished product along the edge that certain curve is shaped as erectting by certain curvature, the dimensional accuracy of formed part is improved by shaping or obtains small radius of corner.The present invention adopts measures for defect, ensures the quality of stamping parts, the problem of solving the defects of stamping parts that existing stamping technology produces is not inconsistent in the presence of cracking, stack, wave, plucking, deformation, burr, scarce material, size, influence stamping parts quality.
Description
Technical field
The present invention relates to part processing technique field, specially a kind of stamping parts production technology.
Background technology
Stamping parts is that depended on pressure machine and mold apply external force to plank, band, tubing and proximate matter etc., is allowed to generate plasticity change
Shape or separation, to obtain the workpiece of required shape and size（Stamping parts）Forming and machining method.Punching press and forging belong to modeling
Property processing（Or pressure processing）, it is collectively referred to as forging and pressing.The blank of punching press is mainly the steel plate and steel band of hot rolling and cold rolling.
Metal or non-metal sheet are mainly passed through diel punch process by stamping parts by the pressure of forcing press
Forming, it mainly has following characteristics：（1）Stamping parts be material consumption is little under the premise of, it is stamped to manufacture,
Pts wt is light, good rigidity, and plate, after plastic deformation, the institutional framework of metal inside is improved, and stamping parts is made
Intensity increases.（2）There is stamping parts higher dimensional accuracy to have preferable interchangeability with module size uniformity.No
It needs further to be machined and can meet general assembly and use requirements.（3）Stamping parts is in punching course, due to material
Surface be not damaged, therefore have preferable surface quality, smooth in appearance is beautiful, this is surface lacquer, plating, phosphatization and other tables
Surface treatment provides a convenient condition.
But there is cracking, stack, wave, plucking, deformation, burr, lack material, size in the stamping parts of existing stamping technology production
The defects of not being inconsistent influences the quality of stamping parts, for this purpose, it is proposed that a kind of stamping parts production technology.
Invention content
The purpose of the present invention is to provide a kind of stamping parts production technologies, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the present invention provides the following technical solutions：A kind of stamping parts production technology, including walk as follows
Suddenly：
（1）Separation：Blanking first is punched with punch die along closed curve, and it is part to sweep away part, for manufacturing variously-shaped put down
Plate part is punched with punch die along closed curve, and it is waste material to sweep away part, and the edge of formation of parts is repaiied and cut neatly by then deburring
Or it is cut into definite shape, it is used in combination punch die to generate separation along the punching of not closed curve；
（2）Forming：Various open hollow parts are made in plate blank forming, the edge of plate or semi-finished product along certain song
The edge that line is shaped as erectting by certain curvature improves the dimensional accuracy of formed part by shaping or obtains small fillet
Radius, on the plate or semi-finished product of advance punching or the edge of setting is made in the plate without punching, by being bent plate
It is curved along straight line variously-shaped, obtains complex-shaped part.
Preferably, described detach with the mold used in forming process includes drawing die, trimming and piercing die, curring and sizing die
With close side mould etc..
Preferably, the step（1）During blanking, ensure the machining accuracy and assembling quality of punch-die, ensures convex
The verticality of mould and bear lateral pressure and entire punch die and to have enough rigidity, ensure when installing punch-pin punch-die it is correct between
Gap simultaneously makes punch-die be firmly installed on mold fixed plate, and the end face of upper and lower mould will keep mutually flat with the work top of forcing press
Row.
Preferably, the step（1）During blanking, increase holding pad on mould structure（Or retainer plate）Plank and pressure
Flitch plane contact simultaneously has certain pressure, checks that cutting edge of die must modify stamping die edge if finding to have inverted cone degree and closes
Suitable, the uneven increase pressure-plate-force of shearing force when blanking part is complex-shaped and endoporus is more, punching is preceding just to be compressed billot or adopts
It is punched with high-precision forcing press, plank should be smoothed before punching, can will be after punching when such as can not still eliminate buckling deformation
Workpiece is smoothed again by straight die, and the foul in mold cavity is removed in timing, and thin panel surface is lubricated, and in mould structure
It is equipped with logical oil-gas hole.
Preferably, the step（2）In bending process, using intermediate annealing process, internal stress is eliminated, after softened
Bending reduces the generation of crackle.
Preferably, the step（2）In bending process, the mechanical property for selecting the big yield point of modulus of elasticity small is relatively stablized
Stamping material, increase correcting process, using bending with sizing replace free bend, be bent before material anneal, keep cold-working hard
It is again bent at shape after changing material softening in advance, if shape distortion occurs in punching course and is difficult to eliminate, replacement or finishing
The gradient of punch-pin and cavity plate, and clearance between punch and die is made to be equal to most small powder thickness, increase the contact area of cavity plate and workpiece, reduces convex
The contact area of mould and workpiece reduces the influence of rebound using the method for " exceeding the proper limits in righting a wrong ".
Preferably, the step（2）In the asymmetric bool of machining shape, shaped using symmetric curvature（Single side is curved
Bent part is cut again after using two pieces symmetric curvature）, increase elastic material device on bending die, so that base can be pushed down in bending
Material prevents from moving, and makes its accurate positioning using endoporus and shape positioning form.
Compared with prior art, the beneficial effects of the invention are as follows：The machining accuracy and dress that the present invention passes through guarantee punch-die
The burr that blanking part is avoided with quality removes the foul in mold cavity by timing, and thin panel surface is lubricated, and in mold
Structure is equipped with logical oil-gas hole and avoids blanking part buckling deformation, by taking the measure for reducing and springing back, when avoiding spares bend, ruler
Very little and shape is unqualified, adopts measures for common deficiency, ensures the quality of stamping parts, solves existing stamping technology life
The defects of stamping parts of production is not inconsistent in the presence of cracking, stack, wave, plucking, deformation, burr, scarce material, size, influences stamping parts matter
The problem of amount.
Specific implementation mode
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
The every other embodiment that art personnel are obtained without making creative work belongs to the model that the present invention protects
It encloses.
The present invention provides a kind of technical solution：A kind of stamping parts production technology, includes the following steps：
（1）Separation：Blanking first is punched with punch die along closed curve, and it is part to sweep away part, for manufacturing variously-shaped put down
Plate part is punched with punch die along closed curve, and it is waste material to sweep away part, and the edge of formation of parts is repaiied and cut neatly by then deburring
Or it is cut into definite shape, it is used in combination punch die to generate separation along the punching of not closed curve；
（2）Forming：Various open hollow parts are made in plate blank forming, the edge of plate or semi-finished product along certain song
The edge that line is shaped as erectting by certain curvature improves the dimensional accuracy of formed part by shaping or obtains small fillet
Radius, on the plate or semi-finished product of advance punching or the edge of setting is made in the plate without punching, by being bent plate
It is curved along straight line variously-shaped, obtains complex-shaped part.
Embodiment one：
Blanking first is punched with punch die along closed curve, and it is part to sweep away part, for manufacturing variously-shaped flat part,
It is punched along closed curve with punch die, it is waste material to sweep away part, and the edge of formation of parts is repaiied and cuts neatly or be cut into one by then deburring
Shape shape, and punch die is used in combination to generate separation along the punching of not closed curve；Various open hollow parts are made in plate blank forming,
It is improved by shaping formed along the edge that certain curve is shaped as erectting by certain curvature at the edge of plate or semi-finished product
The dimensional accuracy of part obtains small radius of corner, on the plate or semi-finished product of advance punching or the plate system without punching
At the edge of setting, is curved along straight line variously-shaped by being bent plate, obtain complex-shaped part.
Embodiment two：
Blanking first is punched with punch die along closed curve, and it is part to sweep away part, for manufacturing variously-shaped flat part,
It is punched along closed curve with punch die, sweeps away part as waste material, during blanking, ensure the machining accuracy and assembly matter of punch-die
Amount, ensures the verticality of punch-pin and bears lateral pressure and entire punch die to have enough rigidity, ensure convex-concave when installing punch-pin
The correct gap of mould simultaneously makes punch-die be firmly installed on mold fixed plate, and the end face of upper and lower mould will be with the work top of forcing press
Holding is mutually parallel；Increase holding pad on mould structure（Or retainer plate）Plank and holding pad plane contact simultaneously have certain pressure
Power it is suitable to check that cutting edge of die must modify stamping die edge if finding to have inverted cone degree, when blanking part is complex-shaped and endoporus
Shearing force uneven increase pressure-plate-force when more, punching is preceding just to be compressed billot or is punched using high-precision forcing press, plank
It should be smoothed before punching, workpiece after punching can be smoothed again by straight die when such as can not still eliminate buckling deformation, it is fixed
When remove foul in mold cavity, thin panel surface is lubricated, and logical oil-gas hole is equipped on mould structure；Then deburring,
The edge of formation of parts is repaiied and cuts neat or is cut into definite shape, punch die is used in combination to generate separation along the punching of not closed curve；Plate
Material blank forming various open hollow parts are made, the edge of plate or semi-finished product along certain curve by certain curvature at
The edge erect is formed, the dimensional accuracy of formed part is improved by shaping or obtains small radius of corner, in advance punching
Plate or semi-finished product on or the plate without punching the edge of setting is made, plate is curved into various shapes along straight line by being bent
Shape obtains complex-shaped part；The mold that uses includes that drawing die, trimming and piercing die, flange are whole in separation and forming process
Shape mould and conjunction side mould etc..
Embodiment three：
In embodiment two, following processes are added：
Blanking first is punched with punch die along closed curve, and it is part to sweep away part, for manufacturing variously-shaped flat part,
It is punched along closed curve with punch die, sweeps away part as waste material, during blanking, ensure the machining accuracy and assembly matter of punch-die
Amount, ensures the verticality of punch-pin and bears lateral pressure and entire punch die to have enough rigidity, ensure convex-concave when installing punch-pin
The correct gap of mould simultaneously makes punch-die be firmly installed on mold fixed plate, and the end face of upper and lower mould will be with the work top of forcing press
Holding is mutually parallel；Increase holding pad on mould structure（Or retainer plate）Plank and holding pad plane contact simultaneously have certain pressure
Power it is suitable to check that cutting edge of die must modify stamping die edge if finding to have inverted cone degree, when blanking part is complex-shaped and endoporus
Shearing force uneven increase pressure-plate-force when more, punching is preceding just to be compressed billot or is punched using high-precision forcing press, plank
It should be smoothed before punching, workpiece after punching can be smoothed again by straight die when such as can not still eliminate buckling deformation, it is fixed
When remove foul in mold cavity, thin panel surface is lubricated, and logical oil-gas hole is equipped on mould structure；Then deburring,
The edge of formation of parts is repaiied and cuts neat or is cut into definite shape, punch die is used in combination to generate separation along the punching of not closed curve；Plate
Material blank forming various open hollow parts are made, the edge of plate or semi-finished product along certain curve by certain curvature at
The edge erect is formed, the dimensional accuracy of formed part is improved by shaping or obtains small radius of corner, in advance punching
Plate or semi-finished product on or the plate without punching the edge of setting is made, plate is curved into various shapes along straight line by being bent
Shape, obtains complex-shaped part, in bending process, using intermediate annealing process, eliminates internal stress, it is softened after bending subtract
The generation of few crackle；The more stable stamping material of the small mechanical property of the selection big yield point of modulus of elasticity, increases correcting process, adopts
Free bend is replaced with bending with sizing, material is annealed before being bent, and shape is again bent at after making the softening in advance of flow harden material,
If shape distortion occurs in punching course and is difficult to eliminate, the gradient of punch-pin and cavity plate is replaced or modified, and makes convex-concave
Die clearance is equal to most small powder thickness, increases the contact area of cavity plate and workpiece, reduces the contact area of punch-pin and workpiece, using " strong
Cross in vain just " method reduce rebound influence；In the asymmetric bool of machining shape, shaped using symmetric curvature（Single side
Bool is cut again after using two pieces symmetric curvature）, increase elastic material device on bending die, to be pushed down in bending
Blank prevents from moving, and makes its accurate positioning using endoporus and shape positioning form；The mold packet used in separation and forming process
Include drawing die, trimming and piercing die, curring and sizing die and conjunction side mould etc..
The reason of punching press waste product includes：Raw material quality is inferior；The mounting and adjusting of punch die, improper use；Operator does not have
Billot is correctly pressed certain gap feeding along positioning feeding or not guaranteed billot；Punch die is due to being used for a long time, hair
Raw gap variation or working part itself and guide elements abrasion；Punch die is loosened due to the long fastenings of the time of vibration that is hit
Make each installation site of punch die that opposite variation occur；The carelessness of operator, is not operated by operating instruction.
Measure：Raw material must be consistent with defined technical conditions（The specification and the trade mark of close inspection raw material, are having
The workpiece high to dimensional accuracy and surface quality requirements carries out laboratory examination in the case of condition.For defined in technological procedure
Links comprehensively stringent should abide by；The tooling devices such as used forcing press and punch die, should ensure that in normal work
Make to work under state；To ensure the cleaning in mold cavity in punching course, after the orderly processing to be arranged of workplace
Workpiece will be put neatly.
The reason of blanking part burr includes：Blade clearance is too big, too small or uneven；Punch die working portion cutting edge rust；
Punch-pin and cavity plate due to long-term vibrated impact and center line changes, axis is misaligned, generates single side burr.
Measure：The machining accuracy and assembling quality for ensureing punch-die ensure the verticality of punch-pin and bear lateral pressure and whole
A punch die will have enough rigidity；It has to ensure the correct gap of punch-die when installing punch-pin and keeps punch-die solid in mold
It is firmly installed on fixed board, the end face of upper and lower mould will keep being mutually parallel with the work top of forcing press；It is required that the rigidity of forcing press
It is better, flexible deformation is small, and the requirements such as the precision and backing plate of guide rail and the depth of parallelism of sliding block want high.
The present invention avoids the burr of blanking part by the machining accuracy and assembling quality that ensure punch-die, is removed by timing
Foul in mold cavity, thin panel surface are lubricated, and are equipped with logical oil-gas hole on mould structure and blanking part warpage is avoided to become
Shape, by taking the measure for reducing and springing back, when avoiding spares bend, size and shape are unqualified, taken respectively for common deficiency
Item measure, ensures the quality of stamping parts, and the stamping parts for solving existing stamping technology production has cracking, stack, wave, drawing
Hair, deformation, burr, the problem of lacking material, size the defects of not being inconsistent, influencing stamping parts quality.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of stamping parts production technology, it is characterised in that：Include the following steps：
（1）Separation：Blanking first is punched with punch die along closed curve, and it is part to sweep away part, for manufacturing variously-shaped put down
Plate part is punched with punch die along closed curve, and it is waste material to sweep away part, and the edge of formation of parts is repaiied and cut neatly by then deburring
Or it is cut into definite shape, it is used in combination punch die to generate separation along the punching of not closed curve；
（2）Forming：Various open hollow parts are made in plate blank forming, the edge of plate or semi-finished product along certain song
The edge that line is shaped as erectting by certain curvature improves the dimensional accuracy of formed part by shaping or obtains small fillet
Radius, on the plate or semi-finished product of advance punching or the edge of setting is made in the plate without punching, by being bent plate
It is curved along straight line variously-shaped, obtains complex-shaped part.
2. a kind of stamping parts production technology according to claim 1, it is characterised in that：Make in the separation and forming process
Mold includes drawing die, trimming and piercing die, curring and sizing die and conjunction side mould etc..
3. a kind of stamping parts production technology according to claim 1, it is characterised in that：The step（1）In blanking process
In, ensure the machining accuracy and assembling quality of punch-die, ensures the verticality of punch-pin and bear lateral pressure and entire punch die to have
Enough rigidity, when installing punch-pin ensure punch-die correct gap and so that punch-die is firmly installed on mold fixed plate,
The end face of upper and lower mould will keep being mutually parallel with the work top of forcing press.
4. a kind of stamping parts production technology according to claim 1, it is characterised in that：The step（1）In blanking process
In, increase holding pad on mould structure（Or retainer plate）Plank and holding pad plane contact simultaneously have certain pressure, check cavity plate
Stamping die edge must be modified suitable, the shearing force when blanking part is complex-shaped and endoporus is more by cutting edge if finding to have inverted cone degree
Uneven increase pressure-plate-force is just compressed billot before punching or is punched using high-precision forcing press, and plank should be into before punching
Row smoothing, can be smoothed workpiece after punching again by straight die when such as can not still eliminate buckling deformation, and mold cavity is removed in timing
Interior foul, thin panel surface are lubricated, and logical oil-gas hole is equipped on mould structure.
5. a kind of stamping parts production technology according to claim 1, it is characterised in that：The step（2）In bending process
In, using intermediate annealing process, eliminate internal stress, it is softened after bending reduce the generation of crackle.
6. a kind of stamping parts production technology according to claim 1, it is characterised in that：The step（2）In bending process
In, the more stable stamping material of the small mechanical property of the selection big yield point of modulus of elasticity increases correcting process, using bending with sizing
Instead of free bend, material is annealed before being bent, and shape is again bent at after making the softening in advance of flow harden material, if in punching press
Shape distortion occurs in journey and is difficult to eliminate, then replaces or modify the gradient of punch-pin and cavity plate, and clearance between punch and die is made to be equal to
Most small powder is thick, increases the contact area of cavity plate and workpiece, reduces the contact area of punch-pin and workpiece, using doing for " exceeding the proper limits in righting a wrong "
Method reduces the influence of rebound.
7. a kind of stamping parts production technology according to claim 1, it is characterised in that：The step（2）In machining shape
When asymmetric bool, shaped using symmetric curvature（Single side bool is cut again after using two pieces symmetric curvature）, it is being bent
Increase elastic material device on mould, prevents from moving so that blank can be pushed down in bending, be made using endoporus and shape positioning form
Its accurate positioning.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810759492.0A CN108746340A (en) | 2018-07-11 | 2018-07-11 | A kind of stamping parts production technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810759492.0A CN108746340A (en) | 2018-07-11 | 2018-07-11 | A kind of stamping parts production technology |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109623283A (en) * | 2018-12-28 | 2019-04-16 | 滁州美业机械制造有限公司 | A kind of refrigerator stamping parts processing and treating method |
| CN110039384A (en) * | 2019-05-17 | 2019-07-23 | 惠州市恒韵五金塑胶制品有限公司 | A kind of processing method of metal light-guiding pillar |
| CN110125245A (en) * | 2019-05-08 | 2019-08-16 | 苏州市吉马精密五金有限公司 | A kind of office equipment components Sheet Metal Forming Technology |
| CN110509007A (en) * | 2019-08-27 | 2019-11-29 | 冠鸿光电科技(武汉)有限公司 | A kind of preceding framework continuous punching polishing debarring process |
| CN113500141A (en) * | 2021-07-16 | 2021-10-15 | 深圳市鹏福创新科技有限公司 | High-light-transmission light and thin cover plate and production process thereof |
| CN114248068A (en) * | 2021-11-17 | 2022-03-29 | 华帝股份有限公司 | Machining method of sheet metal part |
| CN115415749A (en) * | 2022-09-21 | 2022-12-02 | 成都飞机工业（集团）有限责任公司 | Hoop punching processing method |
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| CN113500141B (en) * | 2021-07-16 | 2023-06-23 | 深圳市鹏福创新科技有限公司 | High-light-transmission light and thin cover plate and production process thereof |
| CN114248068A (en) * | 2021-11-17 | 2022-03-29 | 华帝股份有限公司 | Machining method of sheet metal part |
| CN115415749A (en) * | 2022-09-21 | 2022-12-02 | 成都飞机工业（集团）有限责任公司 | Hoop punching processing method |
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