CN101579699A - Method for processing profiled core prints - Google Patents
Method for processing profiled core prints Download PDFInfo
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- CN101579699A CN101579699A CNA2009101462331A CN200910146233A CN101579699A CN 101579699 A CN101579699 A CN 101579699A CN A2009101462331 A CNA2009101462331 A CN A2009101462331A CN 200910146233 A CN200910146233 A CN 200910146233A CN 101579699 A CN101579699 A CN 101579699A
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Abstract
The embodiment of the invention discloses a method for processing profiled core prints, which comprises the following steps of: selecting die steel for blanking according to the diameter of a die; roughly lathing the excircle and thickness of the die according to the paper size; if the blank amount of the core print and the diffluent hole is larger than the blank set amount, marking off the shape and position of the diffluent hole and the core print of a top die by a marker, roughly machining by a plain-milling machine, conducting transverse alignment according to the excircle, semifinishing core print working tape by a numerical control milling machine, and processing the root of the core print and the diffluent hole according to the paper size; otherwise, conducting transverse alignment according to the excircle to directly process the core print working tape, and processing the root of the core print and the diffluent hole according to the paper size; carrying out heat treatment on the die, plainly grinding the upper plane and lower plane of the die, and conducting finish turning on the excircle of the core print according to the paper size; conducting transverse alignment according to the excircle, and conducting finish machining on the core print working tape by the numerical control milling machine according to the paper size; grinding and polishing the core print and assembling with a lower die and die cushion. The invention improves the processing quality of the core print, reduces the cost and shortens the processing time.
Description
Technical field
The present invention relates to the mold machining technology field, more particularly, relate to a kind of method of processing profiled core prints.
Background technology
The production of hollow aluminum section bar divergent die hot extrusion molding, described divergent die is to be combined by upper die and lower die that (as shown in Figure 1: A represents patrix, B represents counterdie), the quality of patrix core print work zone dimensional accuracy and roughness directly influences dimensional accuracy and the fineness of inner surface and the service life of mould in section bar hole.The work of described divergent die core print is divided into common core print work zone and profiled core prints work zone, described common core print work zone such as square core print work zone, the processing of described side's core print work zone is benchmark with the work zone of described divergent die counterdie, shape according to section bar wall thickness recruitment tool mill, if described divergent die core print work zone is special-shaped (as Fig. 2, shown in Figure 3) or go up the divergent die (core print by part in the seam chamber as shown in Figure 4) of seam, instrument mill just can't be realized the overall process of processing, and this class core print just have to be processed with spark-erosion machine tool.
With the process of spark-erosion machine tool processing profiled core prints work zone as shown in Figure 5, comprise that step is as follows:
In the said method, adopt spark machined profiled core prints work zone, have following shortcoming at least:
1, (601 represent core print as shown in Figure 6 under the processing normal condition for core print work zone and core print root, 602 represent the core print root), add man-hour with spark-erosion machine tool, because milling machine is according to being scribed ss benchmark processing, the allowance of core print is many again, the core print after so not only can causing processing and the concentricity of cylindrical increase, also cause the error of the step uniformity after the spark machined to increase easily, make the root transition inequality of core print work zone and core print, (701 represent the core print root as shown in Figure 7,702 represent core print), and galvano-cautery adds man-hour, instantaneous temperature can reach nearly 10000 ℃, under this hot environment, the texture on surface, core print work zone probably changes, because of the electrode work in-process has consumption, thereby it is poor to cause processing the perpendicularity that machined surface and die face can appear in core print work zone, back, and the surface produces very coarse graininess, increased core print work zone surface roughness, need carry out the pincers worker sanding and polishing again, influence drawing and require size, thereby cause the profiled core prints work zone that processes of poor quality.
2, spark machined profiled core prints work zone need be undertaken by spark-erosion machine tool, and spark-erosion machine tool is processed by galvano-cautery, need two copper electrodes that the shape with the core print work zone is identical or part is identical of processing or graphite electrode, this must increase processing cost, and with crossing the mould that not to have later same kind, electrode just becomes waste product, need further increase the processing cost of this method integral body from new processing.
3, spark-erosion machine tool processing profiled core prints work zone is to process by galvano-cautery, and the efficient of processing is low, long processing time.And as can be seen from preamble shortcoming 1, owing to use the spark-erosion machine tool processing profiled core prints, core print work zone poor quality after the processing, so the used time of core print work zone after the pincers worker manual grinding polishing processing is longer, thereby the workload of pincers worker is increased, further make working (machining) efficiency low, long processing time, and influence drawing requirement size.
Summary of the invention
In view of this, the invention provides a kind of method of processing profiled core prints, mainly solve and process of poor quality that patrix profiled core prints work zone exists, cost height, problems such as long processing time in the past.
The present invention is achieved in that based on the problems referred to above
A kind of method of working special-shaped core print comprises:
According to the diameter of mould, select diameter to carry out blanking greater than the die steel of figure paper size;
Cylindrical and thickness according to the rough turn mould of figure paper size;
If the blank amount of described core print and tap hole is greater than the set amount of blank, then router's line, mark the shape and the position of patrix tap hole and core print, use plain-milling machine roughing, according to the cylindrical centering, CNC milling machine semifinishing core print work zone is according to dimension of picture processing core print root and tap hole; Otherwise, directly process the core print work zone according to the cylindrical centering, according to dimension of picture processing core print root and tap hole;
Mould is heat-treated, and the last lower plane of plain grinding mould is according to figure paper size finish turning mould cylindrical;
According to the cylindrical centering, according to figure paper size fine finishining core print work zone on CNC milling machine;
Core print is polished, and polishing is assembled with counterdie and die-cushion.
Preferably, in the said method, described blanking specific implementation is that according to the gauge blanking under the sawing machine saw, the thickness under the described saw is greater than drawing institute dimensioning.
Preferably, in the said method, when the step of described core print is wedge angle or radius of corner during less than predetermined value, also comprise angle processing clearly after CNC milling machine fine finishining, described clear angle processing method therefor is according to the size of mould, and the width of groove is selected.
Preferably, in the said method, described clear angle processing specific implementation is:
On the main shaft of CNC milling machine, boring cutter bar is installed, the blade of peace sharp knife or little dise knife on the knife bar;
The speed of mainshaft is transferred to minimum, is used the self-acting feed of z axle to move up and down to carry out angle processing clearly then.
Preferably, in the said method, described clear angle processing specific implementation is: mill installation lengthening slotting cutter with crouching and carry out angle processing clearly.
Preferably, in the said method, described clear angle processing is carried out with the method for electric spark, and specific implementation is: after the CNC milling machine fine finishining, carry out angle processing clearly with spark-erosion machine tool.
Preferably, in the said method, described clear angle is processed as pincers worker and carries out angle processing clearly, and specific implementation is:
After the CNC milling machine semifinishing, pincers worker is bored an aperture according to the size of wedge angle or chamfering at sharp corner, with file the two sides is filed the same with the face that milled flat, if wedge angle is with the clear angle of file;
CNC milling machine fine finishining after the heat treatment, file with the Buddha's warrior attendant file by pincers worker more the same with the face that milled flat, and the polishing.
Preferably, in the said method, described profiled core prints work zone is patrix profiled core prints work zone.
Preferably, in the said method, the profiled core prints work zone method of described processing patrix can replace the line cutting and process specific counterdie work zone and specific flat-die work zone at high speed.
Preferably, in the said method, during the upper and lower mould of described processing divergent die, bore the bottom outlet and the counterdie via hole of patrix screw simultaneously.
From above-mentioned technical scheme as can be seen, the embodiment of the invention has following beneficial effect:
1, because CNC milling machine processing profiled core prints work zone, be to be the benchmark centering according to mould base cylindrical, with core print work zone, core print root and a centering processing of tap hole, so just improved the positional precision of core print and the overall dimensional accuracy of mould in the Mould Machining, avoided owing to the quality problems of using spark machined profiled core prints work zone to bring.
2, CNC milling machine processing profiled core prints work zone is shorter than the used time of spark machined profiled core prints work zone, and because the quality height of CNC milling machine processing, described in above-mentioned 1, reduced the installation time of pincers worker, and the milling cutter that CNC milling machine is used is a coating high hardness alloy slotting cutter, the profiled core prints work zone quality of processing is higher, thereby further reduces the process time to profiled core prints.
3, avoided the used electrode in spark machined profiled core prints work zone during CNC milling machine processing profiled core prints work zone, the used milling cutter of CNC milling machine is a coating high hardness alloy slotting cutter, described coating high hardness alloy slotting cutter work in-process can repeatedly use, and has reduced processing cost.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The upper and lower mould schematic diagram of the divergent die that Fig. 1 provides for prior art;
Fig. 2 is the shape schematic diagram of the special-shaped single core print of part;
Fig. 3 is the shape schematic diagram of the special-shaped multicore head of part;
Fig. 4 touches schematic diagram on the last seam divergent die;
The flow chart that Fig. 5 processes profiled core prints for the used spark-erosion machine tool of prior art;
Fig. 6 is profiled core prints processing profiled core prints work zone, back and the normal schematic diagram of core print root transition;
Fig. 7 is easy to generate the schematic diagram of error for spark-erosion machine tool profiled core prints being processed profiled core prints work zone, back and core print root transition inequality;
The flow chart that Fig. 8 processes profiled core prints for the used CNC milling machine of the present invention;
Fig. 9 is wedge angle or the fillet profiled core prints design shape schematic diagram during less than predetermined value for the step of core print;
Figure 10 is not have clear angular shape schematic diagram after the profiled core prints CNC milling machine processing during less than predetermined value of wedge angle or fillet for the step of core print;
Figure 11 is for carrying out the flow chart of angle processing clearly according to the slotting machine process principle;
Figure 12 carries out the flow chart of angle processing clearly for the pincers worker method;
Figure 13 is the section bar schematic diagram with the flat-die extruding;
Figure 14 is the section bar schematic diagram with the divergent die extruding.
The specific embodiment
For quote and know for the purpose of, the symbology that uses in the following texts and pictures meaning is as follows:
601 represent core print among Fig. 6, and 602 represent the core print root;
701 represent the core print root among Fig. 7, and 702 represent core print;
Arrow 101 is represented milling cutter among Figure 10.
The present invention changed the past with CNC milling machine processing into the method for spark-erosion machine tool processing profiled core prints, and reached the drawing requirement with CNC milling machine is easier, had improved the crudy of profiled core prints, cut down finished cost, and reduced process time.
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The embodiment of the invention discloses a kind of method of processing profiled core prints, to improve the crudy of profiled core prints, processing process of the present invention is as follows:
Blanking-rough turn-line-milling machine-drilling machine-milling machine-numerical control mills-and heat treatment-plain grinding-finish turning-numerical control mills-pincers worker
Specific implementation process of the present invention may further comprise the steps as shown in Figure 8:
Plain-milling machine roughing described in the above-mentioned steps 806 is that incompatibility is done roughing, and the processing charges of CNC milling machine are higher than plain-milling machine because CNC milling machine is a precision machine tool.
In the real work, if the design shape of core print as shown in Figure 9, the step of core print is that wedge angle or fillet are too small, this method just can not be finished core print all or most processing (as shown in figure 10), the embodiment of the invention provides several modes that described core print is carried out angle processing clearly, introduces in detail respectively below:
Mode one: carry out angle processing clearly according to the slotting machine process principle, detailed process may further comprise the steps as shown in figure 11:
Mode two: mill installation lengthening milling cutter with crouching, carry out angle processing clearly.
Mode three: the electric spark method, after CNC milling machine fine finishining, carry out angle processing clearly with spark-erosion machine tool.
The electricity consumption spark method is carried out angle clearly, and used electrode is not only little, and simple, available plain-milling machine or make by hand.Clear angle working (finishing) area is little, and process time is short.
Mode four: pincers worker method, detailed process may further comprise the steps as shown in figure 12:
Step 121, Digit Control Machine Tool carry out semifinishing to core print;
Step 122, pincers worker are bored a hole according to wedge angle or chamfering size at sharp corner, with file the two sides is filed the same with the face that milled flat, if wedge angle is with the clear angle of file;
Step 123, mould is heat-treated;
Step 124, Digit Control Machine Tool carry out fine finishining to the core print work zone;
Step 125, pincers worker are filed the two sides with the Buddha's warrior attendant file the same with the face that milled flat, and polishing.
Be to be the benchmark centering according to mould base cylindrical to the processing of profiled core prints work zone in the embodiment of the invention, tap hole, core print work zone and core print root are a centering processing, have improved the positional precision of core print and the overall dimensional accuracy of mould in the Mould Machining.
The used milling cutter of CNC milling machine is a coating high hardness alloy slotting cutter in the embodiment of the invention.
Used coating high hardness alloy slotting cutter is processed profiled core prints and is had the following advantages in the embodiment of the invention:
1, coating high hardness alloy slotting cutter is the slotting cutter of a kind of multiple-cutting-edge, large helix angle, core print work zone surface roughness after the processing low (surface roughness Ra is 0.4-0.8um), processing dimension is accurate, improved the core print quality, because the raising of core print crudy, thereby reduced polishing, polishing, the installation time of pincers worker, reduced the process time of profiled core prints generally.
2, described coating high hardness alloy slotting cutter is high-speed cutting processing (feeding speed 200mm/ branch) in use, and milling cutter abrasion resistance height can repeatedly be processed use, has further reduced the processing cost to profiled core prints.
Processing method among the present invention, can not only process the profiled core prints work zone of patrix, also can replace the line cutting and process the work zone (as shown in figure 13) of some counterdie and the work zone (as shown in figure 14) of some flat-die at high speed, the method for processing method and processing profiled core prints work zone is basic identical.
During the upper and lower mould of method among the present invention processing divergent die, can bore patrix screw and counterdie via hole simultaneously, thereby make pincers worker when assembling, just can not occur do not make patrix screw and counterdie via hole produce skew, and influence being assembled because of processing produces accumulated error.
Single core print D among electricity consumption spark method and the present invention in the method manuscript 2 of NC Milling profiled core prints is an example, and shown in the table 1, its beneficial effect is as follows:
1, to mill used process time be half of electric spark used process time in numerical control, and numerical control is milled and reduced process time.
2, spark machined causes pincers worker assembling difficulty, and NC Milling makes the pincers worker assembling easily, thereby has reduced installation time.
3, more than the core print surface roughness Ra 6.4um of spark machined, the core print surface roughness of NC Milling is Ra0.4um-0.8um, has reduced the core print surface roughness.
4, the NC Milling profiled core prints has reduced processing cost without machined electrode.
Table 1
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.So that describes is fairly simple, relevant part partly illustrates referring to method and gets final product.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (11)
1, a kind of method of processing profiled core prints is characterized in that, comprising:
According to the diameter of mould, select diameter to carry out blanking greater than the die steel of figure paper size;
Cylindrical and thickness according to the rough turn mould of figure paper size;
If the blank amount of described core print and tap hole is greater than the set amount of blank, then router's line, mark the shape and the position of patrix tap hole and core print, plain-milling machine roughing, according to the cylindrical centering, CNC milling machine semifinishing core print work zone is according to dimension of picture processing core print root and tap hole; Otherwise, directly process the core print work zone according to the cylindrical centering, according to dimension of picture processing core print root and tap hole;
Mould is heat-treated, and the last lower plane of plain grinding mould is according to figure paper size finish turning mould cylindrical;
According to the cylindrical centering, according to figure paper size fine finishining core print work zone on CNC milling machine;
Core print is polished, and polishing is assembled with counterdie and die-cushion.
According to the described method of claim 1, it is characterized in that 2, described blanking specific implementation is: according to the gauge blanking under the sawing machine saw, the gauge under the described saw is greater than drawing institute dimensioning.
3, according to the described method of claim 2, it is characterized in that,, after CNC milling machine fine finishining, also comprise angle processing clearly when the step of described core print is wedge angle or radius of corner during less than predetermined value, described clear angle processing method therefor is according to the size of mould, and the width of groove is selected.
According to the described method of claim 3, it is characterized in that 4, described clear angle processing specific implementation is:
On the main shaft of CNC milling machine, boring cutter bar is installed, the blade of peace sharp knife or little dise knife on the knife bar;
The speed of mainshaft is transferred to minimum, is used the self-acting feed of z axle to move up and down to carry out angle processing clearly then.
According to the described method of claim 3, it is characterized in that 5, described clear angle processing specific implementation is: mill installation lengthening slotting cutter with crouching and carry out angle processing clearly.
According to the described method of claim 3, it is characterized in that 6, described clear angle processing is carried out with the method for electric spark, specific implementation is: after the CNC milling machine fine finishining, carry out angle processing clearly with spark-erosion machine tool.
According to the described method of claim 3, it is characterized in that 7, described clear angle processing is carried out with the pincers worker method, specific implementation is:
CNC milling machine carries out semifinishing to core print;
Pincers worker is bored an aperture according to the size of wedge angle or chamfering at sharp corner, with file the two sides is filed the same with the face that milled flat, if wedge angle is with the clear angle of file;
Mould is heat-treated;
CNC milling machine carries out fine finishining to core print, and pincers worker is filed the same with the face that milled flat with the Buddha's warrior attendant file, and polishing.
8, according to any described method of claim 1-7, it is characterized in that described profiled core prints is the part of divergent die, described divergent die is divided into upper die and lower die.
9, described according to Claim 8 method is characterized in that, the processing of described profiled core prints is to be benchmark with patrix profiled core prints work zone.
According to the described method of claim 9, it is characterized in that 10, the method for described profiled core prints work zone can replace the line cutting and process specific counterdie work zone and specific flat-die work zone at high speed.
According to the described method of claim 10, it is characterized in that 11, the upper and lower mould of described divergent die adds man-hour, bore the bottom outlet and the counterdie via hole of patrix screw simultaneously.
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| CNA2009101462331A CN101579699A (en) | 2009-06-24 | 2009-06-24 | Method for processing profiled core prints |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102009331A (en) * | 2010-06-11 | 2011-04-13 | 勋龙精密模具(昆山)有限公司 | Method of forming large-area through-hole in large-scale workpiece |
| CN102426120A (en) * | 2011-08-30 | 2012-04-25 | 上海华碧检测技术有限公司 | Manufacturing method of material tensile sample |
| CN103028918A (en) * | 2012-12-25 | 2013-04-10 | 西南铝业（集团）有限责任公司 | Machining method for special-shaped multi-core head die |
| CN103273563A (en) * | 2013-05-27 | 2013-09-04 | 江苏省宜兴非金属化工机械厂有限公司 | Method for manufacturing thin-walled honeycomb ceramic extrusion die |
| CN103894438A (en) * | 2012-12-24 | 2014-07-02 | 北京有色金属研究总院 | Processing method of precision aluminium alloy mold |
| CN111136308A (en) * | 2020-01-06 | 2020-05-12 | 深圳市贝贝特科技实业有限公司 | Mirror surface processing technology of boss-shaped workpiece |
| CN113909822A (en) * | 2021-11-03 | 2022-01-11 | 中冶陕压重工设备有限公司 | Machining method and detection method for flying shear shaft with spiral cutter groove |
| CN114986103A (en) * | 2022-07-01 | 2022-09-02 | 中裕铁信交通科技股份有限公司 | Processing technology of annular damper |
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2009
- 2009-06-24 CN CNA2009101462331A patent/CN101579699A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102009331A (en) * | 2010-06-11 | 2011-04-13 | 勋龙精密模具(昆山)有限公司 | Method of forming large-area through-hole in large-scale workpiece |
| CN102426120A (en) * | 2011-08-30 | 2012-04-25 | 上海华碧检测技术有限公司 | Manufacturing method of material tensile sample |
| CN103894438A (en) * | 2012-12-24 | 2014-07-02 | 北京有色金属研究总院 | Processing method of precision aluminium alloy mold |
| CN103028918A (en) * | 2012-12-25 | 2013-04-10 | 西南铝业（集团）有限责任公司 | Machining method for special-shaped multi-core head die |
| CN103028918B (en) * | 2012-12-25 | 2015-06-10 | 西南铝业（集团）有限责任公司 | Machining method for special-shaped multi-core head die |
| CN103273563A (en) * | 2013-05-27 | 2013-09-04 | 江苏省宜兴非金属化工机械厂有限公司 | Method for manufacturing thin-walled honeycomb ceramic extrusion die |
| CN103273563B (en) * | 2013-05-27 | 2015-02-04 | 江苏省宜兴非金属化工机械厂有限公司 | Method for manufacturing thin-walled honeycomb ceramic extrusion die |
| CN111136308A (en) * | 2020-01-06 | 2020-05-12 | 深圳市贝贝特科技实业有限公司 | Mirror surface processing technology of boss-shaped workpiece |
| CN113909822A (en) * | 2021-11-03 | 2022-01-11 | 中冶陕压重工设备有限公司 | Machining method and detection method for flying shear shaft with spiral cutter groove |
| CN114986103A (en) * | 2022-07-01 | 2022-09-02 | 中裕铁信交通科技股份有限公司 | Processing technology of annular damper |
| CN114986103B (en) * | 2022-07-01 | 2023-09-22 | 中裕铁信交通科技股份有限公司 | Processing technology of annular damper |
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Application publication date: 20091118 |