CN1565795A - Manufacturing method of male mould of plastic glisten piece - Google Patents
Manufacturing method of male mould of plastic glisten piece Download PDFInfo
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- CN1565795A CN1565795A CN 03147796 CN03147796A CN1565795A CN 1565795 A CN1565795 A CN 1565795A CN 03147796 CN03147796 CN 03147796 CN 03147796 A CN03147796 A CN 03147796A CN 1565795 A CN1565795 A CN 1565795A
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Abstract
The invention relates a mould or a core, especially a preparation method for the plastic reflective sheet mould male die. The invention is characterized by: (1) giving a steel product, the shape and the size of the male die, and a cutting machine; (2) cutting the steel product to plural columns by the cutting machine according to the given size; (3) offering a grinding machine; (4) grinding one end of the column to an equilateral triangular pyramid by the grinding machine according to the given size; (5) assembling the male die with the triangular pyramid-comprising plural columns (6) integrating the assembled male die into a whole. The reflective sheet prepared by the method can be used for the automobile industry.
Description
Technical field
The present invention relates to a kind of model or core, particularly a kind of production method of plastics reflecting piece mould punch.
Background technology
Reflective surface at first provides reflecting piece for the production method of the plastics reflecting piece model of positive triangular pyramid in the prior art, with the reflecting piece is model, on reflecting piece, carry out electroforming and pile up the punch that processes reflecting piece, but there is following shortcoming in the reflecting piece that the punch that adopts the processing of this kind method is produced: first, owing to be subjected to the limitation of the machining accuracy of electroforming processing, make that the precision of size and dimension of prismatic reflective surface is lower, generally can not be up to state standards, second, the appearance and size of the punch of producing by reflecting piece is basic identical with reflecting piece, but is to use this punch to carry out plastic shaping processing again, and the reflecting piece of producing is owing to the influence of the shrinkage factor of plastics, use the appearance and size of product to produce error again, like this, further reduced the dimensional accuracy of reflecting piece again, therefore, under the influence of these two factors, the precision of reflecting piece is often lower, and always is lower than the accuracy of manufacture of forming part, can't be up to state standards, can only be as substandard product, and can't be applied to auto industry.
Invention constitutes
The objective of the invention is to overcome weak point of the prior art and a kind of production method that can produce the plastics reflecting piece mould punch of high accuracy punch is provided.
The objective of the invention is to realize by following approach.
The production method of plastics reflecting piece mould punch, its main points are, may further comprise the steps:
(1) provides a kind of steel, punch appearance and size to be processed is provided, a kind of cutting machine is provided;
(2) with cutting machine steel are cut into the complex root cylinder according to the size that provides;
(3) provide a kind of grinding machine;
(4) according to the size that provides with grinding machine one termination of cylinder is ground to positive triangular pyramid;
(5) cylinder that complex root is had a triangular pyramid is assembled into punch;
(6) punch after the assembly unit is consolidated into one.
Below production stage of the present invention is explained as follows:
At first, steel are cut into the small cylinder of complex root, the cross section of this cylinder is identical with the conical surface of triangular pyramid, therefore the cross section of cylinder is an equilateral triangle, thereby cutting machine cuts into the complex root paxilla according to the length of side cutting of the triangular pyramid conical surface of punch to be processed with steel, then, with grinding machine one termination of paxilla is ground to orthopyramid, the cylinder assembly unit that will have positive triangular pyramid at last is consolidated into one, thereby produces the punch of reflecting piece mould.
Owing to adopt production method of the present invention, can process separately the conical surface of each triangular pyramid on the punch, thereby, can adopt mach processing method to improve the precision of the triangular pyramid conical surface.In addition, according to the computing formula of mould punch average-size: punch size L
M=accessory size L
SThe shrinkage factor S of+plastics
CP* accessory size L
STherefore, adopt production method of the present invention the shrinkage factor of plastics can be taken into account the influence of forming part, and the error that other various influence factors can be produced counts, and the processing method of grinding all can reach the needed accuracy class of punch, and the processing technology of existing electroforming is merely able to according to accessory size production, shrinkage factor and other factors that influences size of plastics can't be taken into account, therefore, the punch precision Gao Bingneng of the mould of production method production of the present invention is up to state standards.
Purpose of the present invention can also realize by following approach.
Production method of the present invention at first must provide the appearance and size of punch to be processed, and the appearance and size of punch to be processed or obtain by Mould design, perhaps obtain according to the reflecting piece model, therefore, for obtaining the processing that punch appearance and size also has following steps by the mould design:
(1) carries out three-dimensional drawing modeling according to punch appearance and size;
(2) threedimensional model is divided into the cylinder with single triangular pyramid according to the triangular pyramid of reflecting piece, and draws the size of single cylinder.
The appearance and size of the punch that obtains when foundation reflecting piece model also has following steps:
(1) provides a kind of spatial digitizer, a kind of reflecting piece model is provided;
(2) with spatial digitizer the reflecting piece model is scanned and copy number;
(3) the foundation data of copying are carried out the three-dimensional drawing modeling of punch;
(4) threedimensional model is divided into the cylinder with single triangular pyramid according to the triangular pyramid of reflecting piece, and draws the size of single cylinder.
Like this, by behind the three-dimensional modeling it being cut apart the size that promptly can obtain single cylinder, the employed spatial digitizer of above-mentioned steps is that compound laser is copied several machines, and it comprises three-dimensional laser scanner and two-dimensional projection's machine, therefore, can obtain the appearance and size of reflecting piece accurately; Three-dimensional modeling uses three-dimensional graphics software (as Pro-E), promptly can cut apart threedimensional model easily by three-dimensional modeling.
Because the steel that provided are the blank steel, therefore, before the steel cutting, can also carry out fine finishining to the blank steel, like this, can also may further comprise the steps:
(1) provides a kind of plane face grinding machine;
(2) steel are carried out grinding and make thickness of steel product with surface grinding machine greater than punch thickness 1mm～0.5mm.
The blank steel are roughly ground, and made the thickness of steel be a bit larger tham the thickness of punch, reserve the allowance of 1mm～0.5mm.
These blank steel are a kind of minute surface steel, adopt the NAK80 minute surface steel of Sweden.
Can cut after the roughing of blank steel, and, therefore, should select the high lathe of machining accuracy grade, can be for the selection of cutting machine for the selection of machining tool because the accuracy class of mould is had relatively high expectations:
Cutting machine is a kind of CNC thread feed electric spark nc wire-cutting of being careful.
This CNC is careful, and (cut coverage 300 * 200mm), the be careful machining accuracy of thread feed electric spark nc wire-cutting of this CNC can reach 1 μ to the DK7632 type that the thread feed electric spark nc wire-cutting adopts Shadike Sanguang Electromechanical Co., Ltd., Suzhou City to produce.
The thread feed electric spark nc wire-cutting of appearance and size (length of side that comprises pole section) the input CNC of the cylinder of punch to be processed must being careful before cutting makes lathe cut steel according to instruction.
Cutting machine just need carry out grinding to a termination of paxilla body after steel are cut into single paxilla, make it wear into triangular pyramid, and this grinding machine should be high precision machine tool, and therefore, grinding machine can be:
Grinding machine is a kind of numerical control high precision plane form grinder.
The JE525 that this numerical control high precision plane form grinder adopts German Qiong Ge company to produce, its grinding table top is long-pending to be 500 * 200mm, its machining accuracy can reach 1 μ.
Equally, must make lathe carry out work appearance and size (comprising the prismatic length of side and angle) the input numerical control high precision plane form grinder of the triangular pyramid of punch to be processed before the grinding according to instruction.
After the positive triangular pyramid grinding of cylinder is finished,, therefore can also have following steps in order further to improve the precision of triangular pyramid:
Adopt the polishing raw material that three faceted pebbles are carried out manual polishing.
This polishing raw material is a kind of polishing sand, and hand-polished precision is 0.2 μ.
Paxilla is ground to behind the paxilla with triangular pyramid should become whole with single paxilla assembling combination, like this, the assembly unit of paxilla is also had following steps:
(1) provides a kind of frock clamp;
(2) every cylinder with triangular pyramid is arranged on the frock clamp.
And the shape of frock clamp is different according to the shape of punch, the profile of punch or rectangle, or circular, or it is oval, or other different shapes, and the reflective surface of reflecting piece all has certain radian, therefore, the appearance and size of frock clamp also must have high accuracy class, and like this, the punch by this frock clamp assembly unit can reach high-precision requirement, therefore, the production of frock clamp has following steps:
(1) provides a kind of structural carbon steel, a kind of CNC numerical control machining center is provided, punch appearance and size input CNC numerical control machining center to be processed;
(2) use the CNC numerical control machining center that steel are processed into the punch frock clamp;
(3) provide a kind of polishing raw material, frock clamp is polished with the polishing raw material.
The structural carbon steel that is provided is No. 45 steel, receives in the CNC digital control processing to be CNC milling machine, and the polishing raw material is a kind of polishing sand.
The profile of frock clamp is identical with the profile of punch, but frock clamp is used for fixing paxilla, and therefore, the concrete structure of frock clamp is:
Frock clamp is a kind of box body with an end opening, have triangular pyramid cylinder triangular pyramid down, cylinder is arranged in the box body up.
Like this, the paxilla that is arranged in the box body is assembled into holistic punch.
In addition; punch after the assembly unit also must detect; therefore; the side of the frock clamp box body of this box-like and bottom surface be connected to flexible connection, and the side can bind together paxilla hoop tightly; like this; need only when detecting the end of box body is pulled down and can detect the triangular conical surface, and paxilla can be not loose yet, the data of avoiding like this detecting produce error.
After the cylinder that complex root is had a triangular pyramid is assembled into punch, the detection of assembly unit body be may further comprise the steps:
(1) provides a kind of spatial digitizer, with punch appearance and size input to be processed;
(2) scan with the punch of spatial digitizer after and copy number and detect with punch appearance and size contrast to be processed to assembly unit.
Employed spatial digitizer is that a kind of compound laser is copied several machines, comprises three dimensional optical scanning instrument and two-dimensional projection's machine.
After copying number and detect contrast by scanning, if the numerical value of copying conforms to punch appearance and size to be processed, can the assembly unit body is fixed, fixed method may be selected to be:
Punch after the assembly unit is integral by the electrocasting clinkering.
With the negative electrode of assembly unit body as electroforming, electroforming metal minute surface steel together is placed in the slaine electrolyte as anode, passes to direct current.
In sum, the present invention has the following advantages compared to existing technology: the present invention's employing whole zero, the method of turning parts into the whole again, can carry out machined to the conical surface of the single triangular pyramid of reflecting piece mould, thereby make the triangular pyramid mask that very high precision be arranged, and then can produce high-precision reflecting piece to be applied to auto industry.
Description of drawings
Fig. 1 is the structural representation of punch of the present invention.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the structural representation of frock clamp of the present invention.
The specific embodiment
Most preferred embodiment:
With reference to Fig. 1, Fig. 2, Fig. 3, the production method of plastics reflecting piece mould punch may further comprise the steps:
(1) provides a kind of steel, punch appearance and size to be processed is provided, a kind of cutting machine is provided;
(2) with cutting machine steel are cut into the complex root cylinder according to the size that provides;
(3) provide a kind of grinding machine;
(4) according to the size that provides with grinding machine one termination of cylinder is ground to positive triangular pyramid;
(5) cylinder that complex root is had a triangular pyramid is assembled into punch;
(6) punch after the assembly unit is consolidated into one.
At first must provide the appearance and size of punch to be processed, and the appearance and size of punch to be processed obtains according to the reflecting piece model, the appearance and size that obtains punch when foundation reflecting piece model also has following steps:
(1) provides a kind of spatial digitizer, a kind of reflecting piece model is provided;
(2) with spatial digitizer the reflecting piece model is scanned and copy number;
(3) the foundation data of copying are carried out the three-dimensional drawing modeling of punch;
(4) threedimensional model is divided into the cylinder with single triangular pyramid according to the triangular pyramid of reflecting piece, and draws the size of single cylinder.
The employed spatial digitizer of above-mentioned steps is that compound laser is copied several machines, and it comprises three-dimensional laser scanner and two-dimensional projection's machine, and three-dimensional modeling uses three-dimensional graphics software (as Pro-E).
Also comprise following procedure of processing for the steel that provided:
(1) provides a kind of surface grinding machine;
(2) steel is carried out grinding and make thickness of steel product with surface grinding machine greater than punch thickness 1mm～0.5mm.
Steel are a kind of minute surface steel, adopt the NAK80 minute surface steel of Sweden.
Can cut after the steel roughing, cutting machine is the CNC thread feed electric spark nc wire-cutting of being careful.
This CNC is careful, and (cut coverage 300 * 200mm), the be careful machining accuracy of thread feed electric spark nc wire-cutting of this CNC can reach 1 μ to the DK7632 type that the thread feed electric spark nc wire-cutting adopts Shadike Sanguang Electromechanical Co., Ltd., Suzhou City to produce.
The thread feed electric spark nc wire-cutting of also appearance and size (length of side that comprises pole section) the input CNC of each cylinder of punch to be processed must being careful before cutting makes lathe cut steel according to instruction.
Steel just need carry out grinding to a termination of paxilla after being cut into single paxilla, and grinding machine is a numerical control high precision plane form grinder.
The JE525 that this numerical control high precision plane form grinder adopts German Qiong Ge company to produce, its grinding table top is long-pending to be 500 * 200mm, its machining accuracy can reach 1 μ.
Equally, must make lathe carry out work appearance and size (comprising the prismatic length of side and angle) the input numerical control high precision plane form grinder of the triangular pyramid of punch to be processed before the grinding according to instruction.
After the positive triangular pyramid grinding of cylinder is finished, adopt the throwing raw material that three faceted pebbles are carried out manual polishing.This polishing raw material is a kind of polishing sand, and hand-polished precision is 0.2 μ.
Assembly unit after the paxilla grinding has following steps:
(1) provides a kind of frock clamp;
(2) every cylinder with triangular pyramid is arranged on the frock clamp.
The above-mentioned steps frock clamp adopts No. 45 structural carbon steel manufacturings, the structure of frock clamp is identical with the profile of punch, for having the oval box body of an end opening, the other end is the reflective surface of reflecting piece, has radian, to have during assembly unit triangular pyramid post triangular pyramid down, cylinder is arranged in the box body up.The production of this frock clamp may further comprise the steps;
(1) provides a kind of structural carbon steel, a kind of CNC numerical control machining center is provided, punch appearance and size input CNC numerical control machining center to be processed;
(2) use the CNC numerical control machining center that steel are processed into the punch frock clamp;
(3) provide a kind of polishing raw material, frock clamp is polished with the polishing raw material.
The CNC numerical control machining center is a CNC milling machine, and the polishing raw material is a kind of polishing sand.
Paxilla adopts frock clamp to be assembled into holistic punch, and the punch after the assembly unit detects, and detection may further comprise the steps:
(1) provides a kind of spatial digitizer, with punch appearance and size input to be processed;
(2) scan with the punch of spatial digitizer after and copy number and detect with punch appearance and size contrast to be processed to assembly unit.
Employed spatial digitizer is that a kind of compound laser is copied several machines, comprises three-dimensional laser scanner and two-dimensional projection's machine.After copying number and detect contrast by scanning, the numerical value of copying conforms to punch appearance and size to be processed, can the assembly unit body is fixed, punch after the assembly unit is integral by the electrocasting clinkering, and with the negative electrode of assembly unit body as electroforming, electroforming metal minute surface steel is as anode, together be placed in the slaine electrolyte, pass to direct current, the punch that the pillar clinkering is in aggregates, its precision is 0.6 μ.
It is same as the prior art that present embodiment is not stated part.
Claims (12)
1. the production method of plastics reflecting piece mould punch is characterized in that, may further comprise the steps,
(1) provides a kind of steel, a kind of cutting machine is provided;
(2) with cutting machine steel are cut into the complex root cylinder according to the size that provides;
(3) provide a kind of grinding machine;
(4) according to the size that provides with grinding machine one termination grinding of cylinder is become triangular pyramid;
(5) cylinder that complex root is had a triangular pyramid is assembled into punch;
(6) punch after the assembly unit is consolidated into one.
2. the production method of plastics reflecting piece mould punch according to claim 1 is characterized in that, before the steel cutting, can also may further comprise the steps,
(1) provides a kind of surface grinding machine;
(2) steel are carried out grinding and make thickness of steel product with surface grinding machine greater than punch thickness 1mm～0.5mm.
3. the production method of plastics reflecting piece mould punch according to claim 1 is characterized in that, steel are a kind of minute surface steel.
4. the production method of plastics reflecting piece mould punch according to claim 1 is characterized in that, cutting machine is a kind of CNC thread feed electric spark nc wire-cutting of being careful.
5. the production method of plastics reflecting piece mould punch according to claim 1 is characterized in that, grinding machine is a kind of numerical control high precision plane form grinder.
6. the production method of plastics reflecting piece mould punch according to claim 1 is characterized in that, can also have following steps after the triangular pyramid grinding of cylinder is finished, and adopts the polishing raw material that three faceted pebbles are carried out manual polishing.
7. the production method of plastics reflecting piece mould punch according to claim 1 is characterized in that the assembly unit of complex root triangular pyramid cylinder has following steps,
(1) provides a kind of frock clamp;
(2) every cylinder with triangular pyramid is arranged on the frock clamp.
8. the production method of plastics reflecting piece mould punch according to claim 7 is characterized in that the production of frock clamp has following steps,
(1) provides a kind of structural carbon steel, a kind of CNC numerical control machining center is provided, punch appearance and size input CNC numerical control machining center to be processed;
(2) use the CNC numerical control machining center that steel are processed into the punch frock clamp;
(3) provide a kind of polishing raw material, frock clamp is polished with the polishing raw material.
9. the production method of plastics reflecting piece mould punch according to claim 8 is characterized in that frock clamp is a kind of box body with an end opening, have triangular pyramid cylinder triangular pyramid down, cylinder is arranged in the box body up.
10. the production method of plastics reflecting piece mould punch according to claim 1 is characterized in that, after the cylinder that complex root has a triangular pyramid is assembled into punch, also has following steps,
(1) provides a kind of spatial digitizer, with punch appearance and size input to be processed;
(2) with the punch of spatial digitizer after to assembly unit scan copy number and with punch appearance and size to be processed to detecting.
11. the production method of plastics reflecting piece mould punch according to claim 10 is characterized in that, spatial digitizer is that a kind of compound laser is copied several machines, comprises three-dimensional laser scanner and two-dimensional projection's machine.
12. the production method of plastics reflecting piece mould punch according to claim 1 is characterized in that the punch after the assembly unit is consolidated into one by electrocasting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03147796 CN1565795A (en) | 2003-06-27 | 2003-06-27 | Manufacturing method of male mould of plastic glisten piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03147796 CN1565795A (en) | 2003-06-27 | 2003-06-27 | Manufacturing method of male mould of plastic glisten piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1565795A true CN1565795A (en) | 2005-01-19 |
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ID=34472051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03147796 Pending CN1565795A (en) | 2003-06-27 | 2003-06-27 | Manufacturing method of male mould of plastic glisten piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1565795A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212759A (en) * | 2013-03-20 | 2013-07-24 | 淮海工学院 | Method for processing plastic profile shape extrusion die cavity by slow feeding |
| CN104575327A (en) * | 2014-12-03 | 2015-04-29 | 严世杰 | Unit combined reflective and light-transmitting unit and its production method and application |
-
2003
- 2003-06-27 CN CN 03147796 patent/CN1565795A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212759A (en) * | 2013-03-20 | 2013-07-24 | 淮海工学院 | Method for processing plastic profile shape extrusion die cavity by slow feeding |
| CN103212759B (en) * | 2013-03-20 | 2015-07-01 | 淮海工学院 | Method for processing plastic profile shape extrusion die cavity by slow feeding |
| CN104575327A (en) * | 2014-12-03 | 2015-04-29 | 严世杰 | Unit combined reflective and light-transmitting unit and its production method and application |
| CN104575327B (en) * | 2014-12-03 | 2017-04-12 | 严世杰 | Production method of unit combined reflective and light-transmitting unit |
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