CN110480273A - A kind of injection mould processing method - Google Patents
A kind of injection mould processing method Download PDFInfo
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- CN110480273A CN110480273A CN201910797668.6A CN201910797668A CN110480273A CN 110480273 A CN110480273 A CN 110480273A CN 201910797668 A CN201910797668 A CN 201910797668A CN 110480273 A CN110480273 A CN 110480273A
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- 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
- B23P15/007—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass injection moulding tools
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The present invention relates to mold machining technology fields, and disclose a kind of injection mould processing method, include the following steps, check of drawings, confirmation needs processing mold shape, filter out the material of proper mold processing, understand the precision of mold, quality, the practical capacity of processing and heat treatment, sorting, it chooses the steel for not doing and being quenched and carries out precision, quality and the selection of volume size, and screen out badly damaged steel, machining blanks, the steel of selection are processed, steel are made to form the blank shape of mold, and the blank allowance of reserved 2-4mm, die for blank is numbered, simultaneously using milling machine to the A/B plate of mold, panel, thimble fixed plate and bottom plate are processed.The injection mould processing method passes through setting roughing, semifinishing and finishing, the machining accuracy of mold can effectively be enhanced, and mold is processed using CNC, the machining allowance of strict control die for blank, and mould bases procedure of processing is cooperated effectively to promote the precision that mold is processed.
Description
Technical field
The present invention relates to mold machining technology field, specially a kind of injection mould processing method.
Background technique
Injection mold is a kind of tool for producing plasthetics, is also to confer to plasthetics complete structure and accurate dimension
Tool.Injection molding is a kind of processing method used when producing certain complex-shaped components in batches.It refers specifically to melt heated
Plastics by injection molding machine high pressure inject die cavity obtain formed products after cooling and solidifying.
Precision is lower after existing traditional injection mould processing method mostly has mold processing, to injection molding
More single due to procedure of processing in the process of mold, the residual difference for processing mold is larger, then leads to shaping mould
There is the dimensional discrepancy in processing in the die cavity of tool, keep the injection mold precision completed the process lower.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of injection mould processing method, existing tradition is solved
Injection mould processing method mostly there is a situation where mold processing after precision it is lower, in the process to injection mold,
More single due to procedure of processing, the residual difference for processing mold is larger, and the die cavity of molding die is then caused to there is processing
On dimensional discrepancy, the problem for keeping the injection mold precision completed the process lower.
(2) technical solution
To achieve the above object, the invention provides the following technical scheme: a kind of injection mould processing method, including following step
It is rapid:
S1: check of drawings: confirmation need processing mold shape, filter out proper mold processing material, understand mold precision,
Quality, processing and the practical capacity of heat treatment.
S2: sorting: the steel for not doing and being quenched are chosen and carry out precision, quality and the selection of volume size, and are screened out tight
The steel damaged again.
S3: machining blanks: the steel of selection are processed, and steel is made to form the blank shape of mold, and reserved 2-4mm
Blank allowance.
S4: mold processing: being numbered die for blank, while solid to A/B plate, panel, the thimble of mold using milling machine
Fixed board and bottom plate are processed.
S5: die shape finishing: finishing roughing is carried out using shape of the milling machine to die for blank, guarantees die for blank
Verticality and the depth of parallelism, and reserved polishing surplus 2mm.
S6: mold corase grinding: being polished using surface of the common plane grinding machine to mold, guarantee verticality and the depth of parallelism≤
0.05mm。
S7: mold roughing: die for blank is fixed on CNC workbench, and die for blank slightly add by CNC
Work cuts off most of machining allowance on each surface of die for blank, makes blank shape and size close to finished product, and machining allowance≤
3 millimeters.
S8: mold semifinishing: reuse CNC to die for blank carry out semifinishing, machining allowance 0.4mm-2mm it
Between.
S9: heat treatment: the die for blank that roughing is completed come out of the stove air-cooled or is sent to disappearing inside heat-treatment furnace
Except residual stress processing.
S10: mold fine grinding: being polished again using surface of the common plane grinding machine to mold, guarantees verticality peace
Row degree≤0.02mm.
S11: mold finishing: finishing die for blank using CNC, workpiece be first fixed to CNC workbench, with
Reference angle be initial point set cutter, restart CNC start execute processing program die for blank is finished, make to process
Surplus ﹤ 0.4mm.
S12 electrical discharge machining: electrical discharge machining is carried out to the mold that finishing is completed, improves hardness, the lubricity of mold
And wearability, and the precision of mold processing is improved simultaneously.
S13 polishing: being operated using CNC CNC milling machine, improves mold surface finish.
Preferably, the temperature when die for blank is heat-treated is that (630-680) DEG C × (3-4) h is furnace-cooled to 500 DEG C or less
It comes out of the stove air-cooled, or carries out eliminating residual stress processing using the heat-treatment furnace of 400 DEG C × (2-3) h.
Preferably, the mold, which enters processing when heat-treatment furnace eliminates residual stress, should be at vacuum environment.
Preferably, the A/B plate processing should ensure that the depth of parallelism of mold and verticality is 0.02mm.
Preferably, the electrical discharge machining is to carry out electrical discharge machining to the mold that finishing is completed using the pulse power.
Preferably, the sequence of the mold polishing is first province module base angle side, bone hole and dead angle position place, rear province's protrusion position
With big plane.
(3) beneficial effect
The present invention provides a kind of injection mould processing method, have it is following the utility model has the advantages that
(1), the injection mould processing method can effectively be enhanced by the way that roughing, semifinishing and finishing is arranged
The machining accuracy of mold, and mold is processed using CNC, the machining allowance of strict control die for blank, and cooperate mould bases
Procedure of processing effectively promotes the precision of mold processing, solves existing traditional injection mould processing method and mostly there is mould
The lower situation of precision after tool processing, it is more single due to procedure of processing in the process to injection mold, make mold
The residual difference of processing is larger, then causes the die cavity of molding die to there is the dimensional discrepancy in processing, makes the injection molding completed the process
The lower problem of mould and die accuracy.
(2), the injection mould processing method being capable of effective Lifting Modules by setting electrical discharge machining and mold polishing
Have service performance and precision, the reluctant positions such as the thin of mold, narrow slit class and clear angle position can both be processed, and might be used also
It is processed with the finish to die surface.
(3), the injection mould processing method can effectively be disappeared by being heat-treated under vacuum conditions to mold
Except mold residual stress, mold can be not only reduced in the deflection in final heat treatment stage, can also improve die for blank
Moulding, toughness and fatigue strength improve the overall mechanical properties of workpiece.
Specific embodiment
Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Embodiment one:
The present invention provides a kind of technical solution: a kind of injection mould processing method, comprising the following steps:
S1: check of drawings: confirmation need processing mold shape be it is rectangular, filter out the material of suitable square dies processing, and
Solve precision, quality, processing and the practical capacity of heat treatment of square dies.
S2: sorting: the rectangular steel for not doing and being quenched are chosen and carry out precision, quality and the selection of volume size, and are sieved
Badly damaged steel out choose qualified quality inspection, outer surface and the internal steel without damage and carry out blank processing.
S3: machining blanks: the steel of selection are processed, and so that steel is formed the blank shape of square dies, and reserve
The blank allowance of 2mm, can reduce the amount of labour of machining in this way, guarantee production efficiency, and reduce blank material, tool and
The consumption of electric power etc. reduces the cost of mold processing, avoids the various errors and surface defect of process, reduces the general of waste product generation
Rate.
S4: mold processing: being numbered die for blank, alignment number when assembly can guarantee the installation of mold, make mould
Tool is not easy to make mistakes when using, while being processed using milling machine to the A/B plate of mold, panel, thimble fixed plate and bottom plate, A/B
Plate processing should ensure that the depth of parallelism of mold and verticality is that 0.02mm first corrects milling machine head when being processed, and protect
Card corrects and workpiece pressing within 0.02mm, first processes screw hole, centre hole, wire hole, and pin countersunk head is opened slightly, machine nozzle or
Expect nozzle hole, spreader Hole chamfering does fortune water hole again, mills the angle R.
S5: die shape finishing: finishing roughing is carried out using shape of the milling machine to die for blank, guarantees die for blank
Verticality and the depth of parallelism, and reserved polishing surplus 2mm.
S6: mold corase grinding: being polished using surface of the common plane grinding machine to mold, guarantees that verticality and the depth of parallelism are equal
For 0.03mm.
S7: mold roughing: die for blank is fixed on CNC workbench, and die for blank slightly add by CNC
Work cuts off most of machining allowance on each surface of die for blank, makes blank shape and size close to finished product, machining allowance 2
Millimeter.
S8: it mold semifinishing: reuses CNC and semifinishing is carried out to die for blank, between machining allowance 1mm, make
Die for blank reaches certain required precision, and guarantees there are certain machining allowance, is the finishing Job readiness of major surfaces,
It is completed at the same time the processing of some minor surfaces.
S9: heat treatment: the die for blank that roughing is completed come out of the stove air-cooled or is sent to disappearing inside heat-treatment furnace
Except residual stress processing, die for blank be heat-treated when temperature be 650 DEG C × 3h be furnace-cooled to 500 DEG C or less come out of the stove it is air-cooled.
S10: mold fine grinding: being polished again using surface of the common plane grinding machine to mold, guarantees verticality peace
Row degree is 0.01mm.
S11: mold finishing: finishing die for blank using CNC, workpiece be first fixed to CNC workbench, with
Reference angle be initial point set cutter, restart CNC start execute processing program die for blank is finished, make to process
Surplus is 0.2mm, the injection mould processing method, by the way that roughing, semifinishing and finishing is arranged, can effectively be enhanced
The machining accuracy of mold, and mold is processed using CNC, the machining allowance of strict control die for blank, and cooperate mould bases
Procedure of processing effectively promotes the precision of mold processing.
S12 electrical discharge machining: electrical discharge machining is carried out to the mold that finishing is completed, improves hardness, the lubricity of mold
And wearability, and the precision of mold processing is improved simultaneously, electrical discharge machining is the mold completed using the pulse power to finishing
Carry out electrical discharge machining.
S13 polishing: being operated using CNC CNC milling machine, improves mold surface finish, and the sequence of mold polishing is first polishing
Part base angle side, bone hole and dead angle position place, it is rear to save protrusion position and big plane, pass through setting electrical discharge machining and mold polishing, energy
Enough effective promotion mold service performances and precision, both can be to reluctant portions such as the thin of mold, narrow slit class and clear angle positions
Position is processed, and can also be processed to the finish of die surface.
Embodiment two:
The present invention provides a kind of technical solution: a kind of injection mould processing method, comprising the following steps:
S1: check of drawings: confirmation needs processing mold shape for abnormity, filters out the material of suitable special-shaped mould processing, and
Solve precision, quality, processing and the practical capacity of heat treatment of special-shaped mould.
S2: it sorting: chooses the special-shaped steel for not doing and being quenched and carries out precision, quality and the selection of volume size, and sieve
Badly damaged steel out choose qualified quality inspection, outer surface and the internal steel without damage and carry out blank processing.
S3: machining blanks: the steel of selection are processed, and so that steel is formed the blank shape of special-shaped mould, and reserve
The blank allowance of 4mm, can reduce the amount of labour of machining in this way, guarantee production efficiency, and reduce blank material, tool and
The consumption of electric power etc. reduces the cost of mold processing, avoids the various errors and surface defect of process, reduces the general of waste product generation
Rate.
S4: mold processing: being numbered die for blank, alignment number when assembly can guarantee the installation of mold, make mould
Tool is not easy to make mistakes when using, while being processed using milling machine to the A/B plate of mold, panel, thimble fixed plate and bottom plate, A/B
Plate processing should ensure that the depth of parallelism of mold and verticality is that 0.02mm first corrects milling machine head when being processed, and protect
Card corrects and workpiece pressing within 0.02mm, first processes screw hole, centre hole, wire hole, and pin countersunk head is opened slightly, machine nozzle or
Expect nozzle hole, spreader Hole chamfering does fortune water hole again, mills the angle R.
S5: die shape finishing: finishing roughing is carried out using shape of the milling machine to die for blank, guarantees die for blank
Verticality and the depth of parallelism, and reserved polishing surplus 2mm.
S6: mold corase grinding: being polished using surface of the common plane grinding machine to mold, guarantees that verticality and the depth of parallelism are equal
For 0.04mm.
S7: mold roughing: die for blank is fixed on CNC workbench, and die for blank slightly add by CNC
Work cuts off most of machining allowance on each surface of die for blank, makes blank shape and size close to finished product, machining allowance 3
Millimeter.
S8: it mold semifinishing: reuses CNC and semifinishing is carried out to die for blank, between machining allowance 1mm, make
Die for blank reaches certain required precision, and guarantees there are certain machining allowance, is the finishing Job readiness of major surfaces,
It is completed at the same time the processing of some minor surfaces.
S9: heat treatment: the die for blank that roughing is completed come out of the stove air-cooled or is sent to disappearing inside heat-treatment furnace
Except residual stress processing, heat-treatment furnace when die for blank is heat-treated using 400 DEG C × 3h carries out eliminating residual stress processing, mould
Tool, which enters processing when heat-treatment furnace eliminates residual stress, should be at vacuum environment, by carrying out hot place to mold under vacuum conditions
Reason, can effectively eliminate mold residual stress, can not only reduce mold in the deflection in final heat treatment stage, can be with
Moulding, toughness and the fatigue strength for improving die for blank, improve the overall mechanical properties of workpiece.
S10: mold fine grinding: being polished again using surface of the common plane grinding machine to mold, guarantees verticality peace
Row degree is 0.02mm.
S11: mold finishing: finishing die for blank using CNC, workpiece be first fixed to CNC workbench, with
Reference angle be initial point set cutter, restart CNC start execute processing program die for blank is finished, make to process
Surplus is 0.3mm, the injection mould processing method, by the way that roughing, semifinishing and finishing is arranged, can effectively be enhanced
The machining accuracy of mold, and mold is processed using CNC, the machining allowance of strict control die for blank, and cooperate mould bases
Procedure of processing effectively promotes the precision of mold processing.
S12 electrical discharge machining: electrical discharge machining is carried out to the mold that finishing is completed, improves hardness, the lubricity of mold
And wearability, and the precision of mold processing is improved simultaneously, electrical discharge machining is the mold completed using the pulse power to finishing
Carry out electrical discharge machining.
S13 polishing: being operated using CNC CNC milling machine, improves mold surface finish, and the sequence of mold polishing is first polishing
Part base angle side, bone hole and dead angle position place, it is rear to save protrusion position and big plane, pass through setting electrical discharge machining and mold polishing, energy
Enough effective promotion mold service performances and precision, both can be to reluctant portions such as the thin of mold, narrow slit class and clear angle positions
Position is processed, and can also be processed to the finish of die surface.
It can to sum up state, the injection mould processing method, it, can be effective by the way that roughing, semifinishing and finishing is arranged
Enhancing mold machining accuracy, and mold is processed using CNC, the machining allowance of strict control die for blank, and match
The precision that molding frame procedure of processing effectively promotes mold processing can be effective by setting electrical discharge machining and mold polishing
Promotion mold service performance and precision, the reluctant positions such as the thin of mold, narrow slit class and clear angle position can both be carried out
Processing, can also process the finish of die surface, by being heat-treated under vacuum conditions to mold, Neng Gouyou
The elimination mold residual stress of effect can not only reduce mold in the deflection in final heat treatment stage, can also improve blank
Moulding, toughness and the fatigue strength of mold, improve the overall mechanical properties of workpiece, solve existing traditional injection mold
Precision is lower after processing method mostly has mold processing, in the process to injection mold, since processing walks
Rapid is more single, and the residual difference for processing mold is larger, and the size for then causing the die cavity of molding die to exist in processing is inclined
Difference, the problem for keeping the injection mold precision completed the process lower.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of injection mould processing method, includes the following steps, it is characterised in that:
S1: check of drawings: confirmation needs processing mold shape, filters out the material of proper mold processing, understands precision, the matter of mold
Amount, the practical capacity of processing and heat treatment；
S2: sorting: the steel for not doing and being quenched are chosen and carry out precision, quality and the selection of volume size, and screen out serious damage
Bad steel；
S3: machining blanks: the steel of selection are processed, and steel is made to form the blank shape of mold, and the hair of reserved 2-4mm
Base surplus；
S4: mold processing: being numbered die for blank, while using milling machine to the A/B plate, panel, thimble fixed plate of mold
It is processed with bottom plate；
S5: die shape finishing: finishing roughing is carried out using shape of the milling machine to die for blank, guarantees the vertical of die for blank
Degree and the depth of parallelism, and reserved polishing surplus 2mm；
S6: mold corase grinding: being polished using surface of the common plane grinding machine to mold, guarantee verticality and the depth of parallelism≤
0.05mm；
S7: mold roughing: die for blank is fixed on CNC workbench, and roughing is carried out to die for blank by CNC, is cut
Except most of machining allowance on each surface of die for blank, make blank shape and size close to finished product, machining allowance≤3 millis
Rice；
S8: it mold semifinishing: reuses CNC and semifinishing is carried out to die for blank, between machining allowance 0.4mm-2mm；
S9: heat treatment: the die for blank that roughing is completed come out of the stove air-cooled or is sent residual to eliminate inside heat-treatment furnace
Residue stress processing；
S10: mold fine grinding: being polished again using surface of the common plane grinding machine to mold, guarantees verticality and the depth of parallelism
≤0.02mm；
S11: mold finishing: die for blank is finished using CNC, workpiece is first fixed to CNC workbench, with benchmark
Angle be initial point set cutter, restart CNC start execute processing program die for blank is finished, make machining allowance
﹤ 0.4mm；
S12 electrical discharge machining: carrying out electrical discharge machining to the mold that finishing is completed, and improves the hardness of mold, lubricity and resistance to
Mill property, and the precision of mold processing is improved simultaneously；
S13 polishing: being operated using CNC CNC milling machine, improves mold surface finish.
2. a kind of injection mould processing method according to claim 1, it is characterised in that: when the die for blank is heat-treated
Temperature be (630-680) DEG C × (3-4) h be furnace-cooled to 500 DEG C or less come out of the stove it is air-cooled, or using 400 DEG C × (2-3) h it is hot at
Reason furnace carries out eliminating residual stress processing.
3. a kind of injection mould processing method according to claim 1, it is characterised in that: the mold enters heat-treatment furnace
Processing should be at vacuum environment when eliminating residual stress.
4. a kind of injection mould processing method according to claim 1, it is characterised in that: the A/B plate processing should ensure that
The depth of parallelism and verticality of mold are 0.02mm.
5. a kind of injection mould processing method according to claim 1, it is characterised in that: the electrical discharge machining is to use
The pulse power carries out electrical discharge machining to the mold that finishing is completed.
6. a kind of injection mould processing method according to claim 1, it is characterised in that: the sequence of the mold polishing is
First province module base angle side, bone hole and dead angle position place, it is rear to save protrusion position and big plane.
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| CN201910797668.6A CN110480273A (en) | 2019-08-27 | 2019-08-27 | A kind of injection mould processing method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111283385A (en) * | 2020-02-26 | 2020-06-16 | 盘起工业(大连)有限公司 | Ultra-precise die machining method and ultra-precise die |
| CN111531779A (en) * | 2020-05-17 | 2020-08-14 | 惠州市恺琞实业有限公司 | Injection molding method for scooter plate body and scooter |
| CN112588965A (en) * | 2020-12-03 | 2021-04-02 | 惠州市欣宇五金部件有限公司 | Electric tool die for manufacturing furniture and processing method |
| CN112975305A (en) * | 2021-04-13 | 2021-06-18 | 张家港市品杰模塑科技有限公司 | Processing technology of plate A and plate B in die-casting die frame |
| CN113369833A (en) * | 2021-06-28 | 2021-09-10 | 宁波江丰复合材料科技有限公司 | Processing method of hot-pressing die |
| CN114310209A (en) * | 2021-12-30 | 2022-04-12 | 东台威达鑫精密模具有限公司 | Machining process of integral clamp spring mold |
| CN115107229A (en) * | 2022-06-29 | 2022-09-27 | 宁波富信模胚有限公司 | Die square guide pillar and processing method thereof |
| CN115213632A (en) * | 2021-04-20 | 2022-10-21 | 柯马杜股份有限公司 | Method for injection molding decorative articles |
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| CN111531779A (en) * | 2020-05-17 | 2020-08-14 | 惠州市恺琞实业有限公司 | Injection molding method for scooter plate body and scooter |
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| CN115213632A (en) * | 2021-04-20 | 2022-10-21 | 柯马杜股份有限公司 | Method for injection molding decorative articles |
| CN115213632B (en) * | 2021-04-20 | 2024-05-10 | 柯马杜股份有限公司 | Method for injection molding decorative articles |
| CN113369833A (en) * | 2021-06-28 | 2021-09-10 | 宁波江丰复合材料科技有限公司 | Processing method of hot-pressing die |
| CN114310209A (en) * | 2021-12-30 | 2022-04-12 | 东台威达鑫精密模具有限公司 | Machining process of integral clamp spring mold |
| CN115107229A (en) * | 2022-06-29 | 2022-09-27 | 宁波富信模胚有限公司 | Die square guide pillar and processing method thereof |
| CN115107229B (en) * | 2022-06-29 | 2024-08-20 | 宁波富信模胚有限公司 | Die square guide post and processing method thereof |
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