CN105458639B - Mould making method - Google Patents

Mould making method Download PDF

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Publication number
CN105458639B
CN105458639B CN201510870367.3A CN201510870367A CN105458639B CN 105458639 B CN105458639 B CN 105458639B CN 201510870367 A CN201510870367 A CN 201510870367A CN 105458639 B CN105458639 B CN 105458639B
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CN
China
Prior art keywords
groove
boss
hole
mould
die
Prior art date
Application number
CN201510870367.3A
Other languages
Chinese (zh)
Other versions
CN105458639A (en
Inventor
时相团
Original Assignee
东莞市建升压铸科技有限公司
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Filing date
Publication date
Application filed by 东莞市建升压铸科技有限公司 filed Critical 东莞市建升压铸科技有限公司
Priority to CN201510870367.3A priority Critical patent/CN105458639B/en
Publication of CN105458639A publication Critical patent/CN105458639A/en
Application granted granted Critical
Publication of CN105458639B publication Critical patent/CN105458639B/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/24Making specific metal objects by operations not covered by a single other subclass or a group in this subclass dies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20Accessories: Details
    • B22D17/22Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23HWORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H1/00Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23HWORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H7/00Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
    • B23H7/02Wire-cutting

Abstract

The invention discloses a kind of mould making method.The mould making method comprises the following steps:CNC and electro-discharge machining are carried out to die blank, groove or boss are processed at the position that die blank needs to process groove or boss according to design drawing and reserve allowance in the side wall of the groove or boss, or Working position is reserved at the position that die blank needs to process groove or boss according to design drawing;The die blank line is cut and processes required hole, the center in the hole is corresponding with the center of the groove or boss;To be fetched in the hole point, to the die blank, electro-discharge machining groove or boss in place, form mould again.Mould making method of the present invention, it is ensured that the concentricity in groove or boss and hole, reduce the process that repairs a die in later stage, while add the life-span of mould, reduce production cost.

Description

Mould making method
Technical field
The present invention relates to technology of die manufacturing field, and in particular to mould making method.
Background technology
For die casting, the higher product of some required precisions it has to be ensured that product upper groove or boss with The concentricity in hole.Art methods do not control the higher size of these required precisions especially, but mould is all processed After out, the concentricity of detection hole and boss (groove), repaired a die further according to testing result.And result is often needs freezes and repair Mould, the edge in aperture will be burnt by freezing, and cause to cut processing by line again.It can so cause to repair a die, greatly increase and repair a die Difficulty, and freeze and can reduce the life-span of mould, increase cost of manufacture.
The content of the invention
Based on this, it is necessary to provide a kind of mould making method for the concentricity for ensureing groove or boss and hole.
In order to realize the purpose of the present invention, the present invention uses following technical scheme:
A kind of mould making method, it comprises the following steps:
CNC and electro-discharge machining are carried out to die blank, processing groove or boss are needed in die blank according to design drawing Position process groove or boss and reserve allowance in the side wall of the groove or boss, or existed according to design drawing Die blank needs to process groove or the position of boss reserves Working position;
The die blank line is cut and processes required hole, the center in the hole and the center of the groove or boss It is corresponding;
To be fetched in the hole point, to the die blank, electro-discharge machining groove or boss in place, form mould again.
In wherein some embodiments, the mould making method is further comprising the steps of:Detect the mould, establish with The consistent detection benchmark of machining benchmark, establish complete detection coordinates system and take a measurement.
In wherein some embodiments, also there are following steps after the detection molding process:To be taken in the hole point Count, again electro-discharge machining groove or boss, to be repaired a die.
In wherein some embodiments, the method for the access using in the hole point as:In the hole interpolation one and institute During rod or pin are stated in hole size identical point to carry out point, then fetch.
Mould making method of the present invention, it is compared with prior art:
The mould making method first carries out CNC or electric discharge process, and groove or boss reserve allowance, line is cut process after Process of discharging is further added by, groove or boss are gone out with access electro-discharge machining in original hole point, will on die-cast product so as to ensure that Higher hole and the concentricity of groove or boss are asked, reduces the process that repairs a die in later stage, while adds the life-span of mould, is reduced Production cost.
Brief description of the drawings
Fig. 1 is the CNC in mould making method described in the embodiment of the present invention and the product structure schematic diagram after electro-discharge machining;
Fig. 2 is that the line in mould making method described in the embodiment of the present invention cuts the product structure schematic diagram after processing;
Fig. 3 is the electro-discharge machining structural representation again in mould making method described in the embodiment of the present invention.
Embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing Give presently preferred embodiments of the present invention.But the present invention can realize in many different forms, however it is not limited to this paper institutes The embodiment of description.On the contrary, the purpose for providing these embodiments is to make the understanding to the disclosure more thorough Comprehensively.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element Or there may also be element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to To another element or it may be simultaneously present centering elements.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool The purpose of the embodiment of body, it is not intended that in the limitation present invention.
Mould making method of the present invention, comprises the following steps:CNC (Digit Control Machine Tool) is carried out to die blank with putting Electric machining, groove or boss are processed and described at the position that die blank needs to process groove or boss according to design drawing The side wall of groove or boss reserves allowance, or needs the portion of processing groove or boss in die blank according to design drawing Position reserves Working position;The die blank line is cut and processes required hole, the center in the hole and the groove or convex The center of platform is corresponding;To be fetched in the hole point, to the die blank, electro-discharge machining groove or boss be in place again.
Mould making method is further comprising the steps of:Mould is detected, establishes the detection benchmark consistent with machining benchmark, is established Complete detection coordinates system takes a measurement, and 2.00mm takes a little outside sealing position, and each tested surface at least takes 4 points, sealing position Two points are detected inside and outside face more than more than 20mm, detection glue position standard uses positive and negative tolerance, and sealing position tolerance presses build-up tolerance Select unilateral tolerance.
Also there are following steps after detection molding process:Fetched so that above-mentioned hole point is middle, again electro-discharge machining groove or convex Platform, to be repaired a die.
Using in the hole point the method for access as:In the hole interpolation one and rod in the hole size identical point or During pin is to carry out point, then fetch.Using a point middle rod when aperture is larger, pin is used when aperture is smaller.
Mould making method of the present invention, it is specifically:
First, 3D modeling is done to each constitutional detail of mould, and makes mould general assembly drawing.
2nd, make the engineering drawing of each part and formulate mould tolerance standard.
3rd, CNC and electro-discharge machining are carried out to die blank, the position of processing groove or boss is being needed according to design drawing Groove or boss are processed, then reserves allowance, specific allowance and groove or boss in the side wall of groove or boss Size it is related;Then enter line to die blank and cut processing, required hole is processed on die blank, it is desirable to be hole Center is corresponding with the center of the groove or boss, then carries out electro-discharge machining to die blank, to be fetched in hole point, electro-discharge machining Groove or boss in place, form mould.Or CNC and electro-discharge machining are carried out to die blank, needing to add according to design drawing The position of work groove or boss reserves Working position;Then enter line to die blank and cut processing, processed on die blank Required hole, it is desirable to be hole center it is corresponding with the center of default groove or boss, then to die blank carry out electric discharge plus Work, to be fetched in hole point, electro-discharge machining groove or boss in place, form mould again.
4th, mould is detected, establishes the detection benchmark consistent with machining benchmark, complete detection coordinates system is established and takes a survey Amount, and 2.00mm takes a little outside sealing position, each tested surface at least takes 4 points, and face of the sealing position more than more than 20mm is inside and outside to be examined Two points are surveyed, detection glue position standard uses positive and negative tolerance, and sealing position tolerance is by build-up tolerance selection unilateral tolerance.
5th, to be fetched in above-mentioned hole point, electro-discharge machining groove or boss, to be repaired a die.
Refer to Fig. 1 to Fig. 3, by taking a sliding block 100 as an example, needed on sliding block 100 process a groove 10 and with The concentric hole 20 of groove 10, processing method are:Fig. 1 is refer to, CNC and electro-discharge machining, processing are first carried out with the blank of sliding block 100 Go out groove 10 or do not process groove 10 first, but allowance is reserved in the position side wall for needing to process groove 10, should The aperture in the hole 20 of sliding block 100 is 5-10mm, and the width of groove is 10-20mm, then allowance reserves 0.05-1mm;It refer to Fig. 2, line then is entered to the blank of sliding block 100 and cuts processing, on the blank processing portal 20, center and the groove 10 in hole 20 Center is corresponding;It refer to Fig. 3, then electro-discharge machining carried out to the blank, the pin of 20 interpolation one and 20 corresponding size of hole in hole 30 in dividing, divide middle access, electro-discharge machining groove 10 is in place with hole 20.Because groove 10 is taken in once being divided on the basis of hole 20 What number processed, so they can guarantee that good concentricity.Middle access electric discharge can also be divided when repairing a die with original hole 20 Groove 10 is processed to ensure the concentricity in hole 20 and groove 10.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.

Claims (2)

1. a kind of mould making method, it is characterised in that comprise the following steps:
CNC and electro-discharge machining are carried out to die blank, need the portion of processing groove or boss in die blank according to design drawing Position processes groove or boss and reserves allowance in the side wall of the groove or boss, or according to design drawing in mould Tool blank needs to process groove or the position of boss reserves Working position;
The die blank line is cut and processes required hole, the center in the hole and the center pair of the groove or boss Should;
To be fetched in the hole point, to the die blank, electro-discharge machining groove or boss in place, form mould again;
The mould is detected, establishes the detection benchmark consistent with machining benchmark, complete detection coordinates system is established and takes a measurement;
Fetched so that the hole point is middle, again electro-discharge machining groove or boss, to be repaired a die.
2. mould making method according to claim 1, it is characterised in that the method for the access using in the hole point as: In the hole interpolation one and rod in the hole size identical point or pin to carry out point in, then fetch.
CN201510870367.3A 2015-11-30 2015-11-30 Mould making method CN105458639B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510870367.3A CN105458639B (en) 2015-11-30 2015-11-30 Mould making method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510870367.3A CN105458639B (en) 2015-11-30 2015-11-30 Mould making method

Publications (2)

Publication Number Publication Date
CN105458639A CN105458639A (en) 2016-04-06
CN105458639B true CN105458639B (en) 2017-12-12

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107486689A (en) * 2017-09-23 2017-12-19 无锡工艺职业技术学院 A kind of hot pressing die and its prepare helicitic texture ceramic methods

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3550479A (en) * 1968-08-14 1970-12-29 Bernal Inc Method for making cylindrical dies
CN101658965B (en) * 2009-09-21 2011-08-10 奇瑞汽车股份有限公司 Manufacturing method of non-standard female die
CN101856784B (en) * 2010-06-01 2011-10-05 辽宁忠旺集团有限公司 Machining process of train body profile mold
CN102303221B (en) * 2011-08-29 2013-06-05 西南铝业(集团)有限责任公司 Method for processing female die with large square hole
CN102672445A (en) * 2012-05-23 2012-09-19 江苏嘉和热系统股份有限公司 Machining process for punching concave die for main plate
CN102738681B (en) * 2012-06-14 2014-08-06 洛阳力诺模具有限公司 Mould of low frequency point connector used for aerospace

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