CN103567514A - High-precision milling method of parabolic mirror core - Google Patents
High-precision milling method of parabolic mirror core Download PDFInfo
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- CN103567514A CN103567514A CN201310576254.3A CN201310576254A CN103567514A CN 103567514 A CN103567514 A CN 103567514A CN 201310576254 A CN201310576254 A CN 201310576254A CN 103567514 A CN103567514 A CN 103567514A
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Abstract
The invention discloses a high-precision milling method of a parabolic mirror core, which comprises the steps of reverse crossed milling paths, milling parameters and milling. The method employs the A-B milling path and the C-D milling path which are reverse to each other, orthogonally crossed and arranged for programming for processing each paraboloid unit, that is the milling is performed from a point A to a point B, a cutter is lift to a point C after the milling is performed to the point B, and then the reverse crossed path milling is performed from the point C to a point D. The cutter loss deviation is equalized by the reverse crossed path milling, and the milling cutter renewal frequency is reduced. The problems and defects of low efficiency, high cost, high milling cutter consumption, and long processing cycle in the prior art are overcome, and the purposes of improving the efficiency, lowering the cost, reducing the milling cutter consumption and shortening the processing cycle are achieved for processing of an injection mold of an automobile lamp reflector by cutter loss deviation equalization of the reverse crossed milling path.
Description
Technical field
The present invention relates to a kind of milling process method of mould, specifically refer to the high accuracy method for milling for a kind of parabolic minute surface core of the reflection parabolic minute surface core of Milling Process reflector of automobile lamps injection mold.
Background technology
Consult Fig. 4, the reflection parabolic minute surface core of reflector of automobile lamps injection mold, by numerous parabola cell formations that are divided into rectangular block shape, protrusion, the morpheme of each parabola unit, size and bright and clean required precision are very high, for fear of lamp reflector goods, there is the bad of reflection astigmatism, each parabola unit must be with the milling cutter of 0.6 millimeter of φ, by numerical control one by one Milling Process to dimensional accuracy and bright and clean required precision, must not adopt polishing to carry out repairing treatment afterwards.
Prior art is taked order method Milling Process parabola unit, path, consults Fig. 5, that is, and and in the region of a parabola unit, programming milling track is, by E to F point, carries out milling, and milling cutter is to F point, griffe to get back to E point, then put milling by E to F, so reiteration has progressively approached milling, because the cutting edge of milling cutter has wearing and tearing in the process by E to F point, cause, in the milling size at F point place and the setting size of control program, there is deviation in cutting edge, this deviation is called cutter and damages deviation, in order to eliminate cutter, damage deviation, during finish-milling, often to E point palpus renewal milling cutter, basic point tool setting, again by by the milling of E point to F point, uniformity in order to ensure each parabola unit precision, finish-milling must a minute multistep repeat progressively to have approached Milling Process, so order path method processing, efficiency is low, expend milling cutter many, time-consuming, in actual processing, Milling Process parabola unit only, even processing continuously in 24 hours, also need two time-of-weeks, cause the Mould Machining cycle long, cost is high, therefore, prior art exists that efficiency is low, cost is high, expends the problems and shortcomings that milling cutter is many, the process-cycle is long.
Summary of the invention
The problems and shortcomings that exist for above-mentioned prior art, the present invention is adopted as two mutual reverse backs that each parabola unit programming of processing arranges A B milling path and C D milling path, and the milling path of orthogonal crossover, , first by A point to B point, carry out milling, milling is griffed to C point to B point, by C point to D point, carry out the milling of reverse back crossedpath again, utilize the balanced cutter of reverse back intersection milling path to damage deviation, reduce the technical scheme that milling cutter upgrades the frequency, a kind of high accuracy method for milling of parabolic minute surface core is provided, be intended to damage deviation by balanced cutter, make the processing of reflector of automobile lamps injection mold, reach and raise the efficiency, reduce costs, reducing milling cutter expends, shorten the object of process-cycle.
The object of the present invention is achieved like this: a kind of high accuracy method for milling of parabolic minute surface core, comprise reverse back intersection milling path, Milling Parameters, milling step, wherein: described reverse back intersection milling path consists of AB milling path and C D milling path, for single parabola unit, described AB milling path is, initial point A is positioned at the lower left corner of parabola unit, terminal B is positioned at the upper right corner of parabola unit, row cutter trend: 45 ° of row cuttves from bottom to top are first tilted to the left, 45 ° of row cuttves are more from top to bottom tilted to the right, 45 ° of row cuttves are more from bottom to top tilted to the left, so oblique 45 ° of left and right wriggle row cutter by A point to B point,
Described C D milling path is, initial point C is positioned at the upper left corner of parabola unit, terminal D is positioned at the lower right corner of parabola unit, row cutter trend: 45 ° of row cuttves from top to bottom are first tilted to the left, 45 ° of row cuttves are more from bottom to top tilted to the right, the 45 ° of row cuttves that are tilted to the left from top to bottom again, so oblique 45 ° of left and right wriggle row cutter by C point to D point; Downward projection, described A B milling path and C D milling path are gone up retrograde, orthogonal crossover mutually;
Described Milling Parameters is, 0.6 millimeter of slotting cutter of cutter: φ; Step pitch: 0.01～0.1 millimeter/turn; Feeding: it is 0.55 millimeter that minute six feedings add up to total amount, and wherein, the amount of feeding is 0.2 millimeter for the first time, the amount of feeding is 0.15 millimeter for the second time, and the amount of feeding is 0.1 millimeter for the third time, and the 4th time the amount of feeding is 0.05 millimeter, the 5th time the amount of feeding is 0.03 millimeter, and the 6th time the amount of feeding is surplus; The electricity speed of mainshaft: 3～40,000 revs/min; Cooling fluid continuous-flow is cooling, 18～27 ℃ of coolant temperatures;
Described milling step is:
Step 3, upgrade milling cutter, basic point tool setting, by A B milling path, from the milling of A point to B point, feeding parameter is described the 5th amount of feeding, step pitch parameter be 0.01 millimeter/turn; B point is griffed to C point, then by CD milling path from the milling of C point to D point, feeding parameter is described the 6th amount of feeding, step pitch parameter be 0.01 millimeter/turn; So the gone round and begun again Milling Process of single parabola elemental area.
Operation principle and beneficial effect
During work, the cutter from deep to shallow that milling cutter is produced by the milling of A B milling path damages deviation, and the same cutter from deep to shallow producing in the milling process of C D milling path damages deviation and given isostatic compensation.
The present invention utilizes the milling of reverse back crossedpath to come balanced cutter to damage deviation, makes the processing of reflector of automobile lamps injection mold, has reduced the frequency that milling cutter upgrades, improved efficiency, reduced cost, reduced milling cutter renewal amount, shortened the process-cycle.
Above-mentioned, the present invention is adopted as two mutual reverse backs that each parabola unit programming of processing arranges A B milling path and C D milling path, and the milling path of orthogonal crossover, , first by A point to B point, carry out milling, milling is griffed to C point to B point, by C point to D point, carry out the milling of reverse back crossedpath again, utilize the milling of reverse back crossedpath to come balanced cutter to damage deviation, reduce the technical scheme that milling cutter upgrades the frequency, having overcome prior art exists efficiency low, cost is high, expend milling cutter many, the problems and shortcomings that process-cycle is long, the high accuracy method for milling of a kind of parabolic minute surface core providing, by reverse back, intersect the balanced cutter of milling path and damage deviation, make the processing of reflector of automobile lamps injection mold, reached and raised the efficiency, reduce costs, reducing milling cutter expends, shorten the object of process-cycle.
Accompanying drawing explanation
Fig. 1 is that the reverse back of the high accuracy method for milling of a kind of parabolic minute surface core of the present invention is intersected the schematic diagram of milling path;
Fig. 2 is the schematic diagram of A B milling path of the high accuracy method for milling of a kind of parabolic minute surface core of the present invention;
Fig. 3 is the schematic diagram of C D milling path of the high accuracy method for milling of a kind of parabolic minute surface core of the present invention;
Fig. 4 is a kind of schematic diagram of reflection parabolic minute surface core of reflector of automobile lamps injection mold;
Fig. 5 is the schematic diagram of the milling path of prior art;
Below in conjunction with the embodiment in accompanying drawing, the present invention is described in further detail, but should not be construed as any limitation of the invention.
In figure: parabola unit 1, A B milling path 2, C D milling path 3, griffe track 4, reflection parabolic minute surface core 5, mould 6, basic point 0.
The specific embodiment
Consult Fig. 1～Fig. 3, the high accuracy method for milling of a kind of parabolic minute surface core of the present invention, comprise reverse back intersection milling path, Milling Parameters, milling step, wherein: described reverse back intersection milling path consists of A B milling path 2 and C D milling path 3, for single parabola unit 1, described A B milling path 2 is, initial point A is positioned at the lower left corner of parabola unit 1, terminal B is positioned at the upper right corner of parabola unit 1, row cutter trend: 45 ° of row cuttves from bottom to top are first tilted to the left, 45 ° of row cuttves are more from top to bottom tilted to the right, 45 ° of row cuttves are more from bottom to top tilted to the left, so oblique 45 ° of left and right wriggle row cutter by A point to B point,
Described C D milling path 3 is, initial point C is positioned at the upper left corner of parabola unit 1, terminal D is positioned at the lower right corner of parabola unit 1, row cutter trend: 45 ° of row cuttves from top to bottom are first tilted to the left, 45 ° of row cuttves are more from bottom to top tilted to the right, the 45 ° of row cuttves that are tilted to the left from top to bottom again, so oblique 45 ° of left and right wriggle row cutter by C point to D point; Downward projection, described A B milling path and C D milling path are gone up retrograde, orthogonal crossover mutually;
Described Milling Parameters is, 0.6 millimeter of slotting cutter of cutter: φ; Step pitch: 0.01～0.1 millimeter/turn; Feeding: it is 0.55 millimeter that minute six feedings add up to total amount, and wherein, the amount of feeding is 0.2 millimeter for the first time, the amount of feeding is 0.15 millimeter for the second time, and the amount of feeding is 0.1 millimeter for the third time, and the 4th time the amount of feeding is 0.05 millimeter, the 5th time the amount of feeding is 0.03 millimeter, and the 6th time the amount of feeding is surplus; The electricity speed of mainshaft: 3～40,000 revs/min; Cooling fluid continuous-flow is cooling, 18～27 ℃ of coolant temperatures;
Described milling step is:
Step 3, upgrade milling cutter, basic point 0 tool setting, by A B milling path 2, from the milling of A point to B point, feeding parameter is described the 5th amount of feeding, step pitch parameter be 0.01 millimeter/turn; B point is griffed to C point, then by C D milling path 3 from the milling of C point to D point, feeding parameter is described the 6th amount of feeding, step pitch parameter be 0.01 millimeter/turn; So the gone round and begun again Milling Process of single parabola elemental area.
Operation principle and beneficial effect
During work, the cutter from deep to shallow that milling cutter is produced by 2 millings of A B milling path damages deviation, and the same cutter from deep to shallow producing in the milling process of C D milling path 3 damages deviation and given isostatic compensation.
The present invention utilizes the milling of reverse back crossedpath to come balanced cutter to damage deviation, makes the processing of reflector of automobile lamps injection mold, has reduced the frequency that milling cutter upgrades, improved efficiency, reduced cost, reduced milling cutter renewal amount, shortened the process-cycle.
Claims (1)
1. the high accuracy method for milling of a parabolic minute surface core, comprise reverse back intersection milling path, Milling Parameters, milling step, it is characterized in that: described reverse back is intersected milling path by AB milling path (2) and C D milling path (3) formation, for single parabola unit (1), described A B milling path (2) is, initial point A is positioned at the lower left corner of parabola unit (1), terminal B is positioned at the upper right corner of parabola unit (1), row cutter trend: 45 ° of row cuttves from bottom to top are first tilted to the left, 45 ° of row cuttves are more from top to bottom tilted to the right, 45 ° of row cuttves are more from bottom to top tilted to the left, so oblique 45 ° of left and right wriggle row cutter by A point to B point,
Described C D milling path (3) is, initial point C is positioned at the upper left corner of parabola unit (1), terminal D is positioned at the lower right corner of parabola unit (1), row cutter trend: 45 ° of row cuttves from top to bottom are first tilted to the left, 45 ° of row cuttves are more from bottom to top tilted to the right, the 45 ° of row cuttves that are tilted to the left from top to bottom again, so oblique 45 ° of left and right wriggle row cutter by C point to D point; Downward projection, described A B milling path and C D milling path are gone up retrograde, orthogonal crossover mutually;
Described Milling Parameters is, 0.6 millimeter of slotting cutter of cutter: φ; Step pitch: 0.01～0.1 millimeter/turn; Feeding: it is 0.55 millimeter that minute six feedings add up to total amount, and wherein, the amount of feeding is 0.2 millimeter for the first time, the amount of feeding is 0.15 millimeter for the second time, and the amount of feeding is 0.1 millimeter for the third time, and the 4th time the amount of feeding is 0.05 millimeter, the 5th time the amount of feeding is 0.03 millimeter, and the 6th time the amount of feeding is surplus; The electricity speed of mainshaft: 3～40,000 revs/min; Cooling fluid continuous-flow is cooling, 18～27 ℃ of coolant temperatures;
Described milling step is:
Step 1, by described AB milling path (2) from the milling of A point to B point, feeding parameter is the described amount of feeding for the first time, step pitch parameter be 0.1 millimeter/turn; B point is griffed to C point, then by described C D milling path (3) from the milling of C point to D point, feeding parameter is the described amount of feeding for the second time; Step pitch parameter be 0.1 millimeter/turn; The milling of the first step of so having gone round and begun again parabola elemental area;
Step 2, upgrade milling cutter, basic point (0) tool setting, by described AB milling path (2), from the milling of A point to B point, feeding parameter is the described amount of feeding for the third time, step pitch parameter be 0.05 millimeter/turn; B point is griffed to C point, then by described C D milling path (3) from the milling of C point to D point, feeding parameter is described the 4th amount of feeding, step pitch parameter be 0.05 millimeter/turn; The milling of second step parabola elemental area has has so gone round and begun again;
Step 3, upgrade milling cutter, basic point (0) tool setting, by AB milling path (2), from the milling of A point to B point, feeding parameter is described the 5th amount of feeding, step pitch parameter be 0.01 millimeter/turn; B point is griffed to C point, then by C D milling path (3) from the milling of C point to D point, feeding parameter is described the 6th amount of feeding, step pitch parameter be 0.01 millimeter/turn; So the gone round and begun again Milling Process of single parabola elemental area.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105436582A (en) * | 2015-12-07 | 2016-03-30 | 上海小糸车灯有限公司 | Milling method for automotive lamp LED-PES reflective surface |
| CN108716650A (en) * | 2018-05-25 | 2018-10-30 | 常州星宇车灯股份有限公司 | A kind of speculum and its application with micro- striated structure |
| CN108800048A (en) * | 2018-05-25 | 2018-11-13 | 常州星宇车灯股份有限公司 | A kind of speculum and its processing method with micro- striped |
| CN109014352A (en) * | 2018-05-25 | 2018-12-18 | 常州星宇车灯股份有限公司 | A kind of processing method of the micro- striped of lens and lens with micro- striped |
| CN109654448A (en) * | 2019-02-28 | 2019-04-19 | 华域视觉科技(上海)有限公司 | Car light reflecting surface and its processing method, lamp reflector, car light mould group and automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105436582A (en) * | 2015-12-07 | 2016-03-30 | 上海小糸车灯有限公司 | Milling method for automotive lamp LED-PES reflective surface |
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| CN108800048A (en) * | 2018-05-25 | 2018-11-13 | 常州星宇车灯股份有限公司 | A kind of speculum and its processing method with micro- striped |
| CN109014352A (en) * | 2018-05-25 | 2018-12-18 | 常州星宇车灯股份有限公司 | A kind of processing method of the micro- striped of lens and lens with micro- striped |
| CN109654448A (en) * | 2019-02-28 | 2019-04-19 | 华域视觉科技(上海)有限公司 | Car light reflecting surface and its processing method, lamp reflector, car light mould group and automobile |
| CN109654448B (en) * | 2019-02-28 | 2021-11-23 | 华域视觉科技(上海)有限公司 | Car lamp reflecting surface and machining method thereof, car lamp reflecting mirror, car lamp module and car |
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| CN103567514B (en) | 2016-02-17 |
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