CN208615346U - A kind of heavy section casting lens die with micro-structure - Google Patents
A kind of heavy section casting lens die with micro-structure Download PDFInfo
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- CN208615346U CN208615346U CN201821005260.8U CN201821005260U CN208615346U CN 208615346 U CN208615346 U CN 208615346U CN 201821005260 U CN201821005260 U CN 201821005260U CN 208615346 U CN208615346 U CN 208615346U
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- lens die
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Abstract
The utility model relates to a kind of heavy section casting lens die with micro-structure, including lens die ontology, the lens die ontology are hollow semicircular structure, and surface exhibits are the curve T of several rotational symmetry；The lens die body surface is equipped with several micro-structures, per the micro-structure 2 described two-by-two between left and right away from 0.3mm, upper and lower spacing is 0.18-0.4mm according to curve T different curvature spacing.The utility model provide it is a kind of it is simple and effective, the heavy section casting lens die with micro-structure low, that the scope of application is big is required to lathe.
Description
Technical field
The utility model relates to a kind of heavy section casting lens die with micro-structure.
Background technique
With the popularization and application of LED lens mould group in modern car light industry, the mould of injection molding is carried out using PMMA material
Have more frequent, how to increase microstructure design on heavy section casting lens die, how to be carried out on mold micro-structure processing and
Control the difficult point that influence of the structure to optical property is such mold.
Prior art defect: currently, increasing micro-structure on heavy section casting lens die, substantially there are three types of methods.
Method one is reached by the control corrosion rate time and is added in the method processing micro structure that die surface uses liquid medicine to corrode
The effect of work different depth microstructure graph, disadvantage: 1. the micro-structure of liquid medicine caustic solution processing, the figure of micro-structure can not be controlled
System or design；2. the depth of microstructure of liquid medicine corrosion processing is unable to accurately control, gradual change adjustment can not be carried out；3. liquid medicine is processed
The final die surface of micro-structure be unable to get mirror effect, complete liquid medicine corrosion processing after need to be processed by shot blasting.
Scheme two utilizes the method lens working micro-structure of laser engraving, disadvantage: the 1. mould of rapid laser carving micro-structure
Tool, die surface, which has, to be burnt phenomenon and can not directly obtain mirror effect；2. the method for laser engraving micro-structure can not be controlled accurately
The range of work processed, engraving precision is high to equipment requirement, and consistency is difficult to ensure.
Scheme three is programmed by cutter path in the lens surface of not micro-structure, processes mould surface texture, this
A kind of texture also micro-structure at last.Disadvantage: 1. this micro-structure depends on tool- path generation, for the requirement of track programming software
It is high；2. this processing method needs multiaxis Ultra-precision Turning numerically-controlled machine tool, the high requirements on the equipment.
Utility model content
The purpose of the utility model is to overcome defect of the existing technology, provide it is a kind of it is simple and effective, to lathe requirement
Heavy section casting lens die and its processing method with micro-structure low, the scope of application is big.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of heavy section casting lens with micro-structure
Mold, including lens die ontology, the lens die ontology are hollow semicircular structure, and surface exhibits are several rotations
Turn symmetrical curve T；The lens die body surface is equipped with several micro-structures, between left and right per the micro-structure 2 described two-by-two
Away from 0.3mm, upper and lower spacing is 0.18-0.4mm according to curve T different curvature spacing.
It is circular microstructure that another embodiment according to the present utility model, which further comprises the micro-structure,.
Another embodiment according to the present utility model further comprises the round highest of the lens die body surface
Point 0 locate arrive down its surface 2/3 at be influence optics of lens performance dead line gradient value region, surface 2/3 at
It is the influence region optics of lens performance HV at face extremities 1；The region for influencing optics of lens performance dead line gradient value
Interior circular microstructure diameter is 0.8mm, depth 0.005mm；The circle influenced in the region optics of lens performance HV is micro-
Diameter of movement is 0.8mm, depth 0.003mm.
The utility model has the beneficial effects that the utility model solves defect present in background technique: firstly, in lens
Die ontology surface carries out microstructure design and is different from being then copied to die surface in product surface increase micro-structure, and advantage is
Due to the distribution of different effect of contraction micro-structures when avoiding mold design.Secondly, the micro-structure of design is circular microstructure, directly
Diameter is that 0.8mm requires to be designed for dead line gradient in ECE light distribution requirements is met, and shows as the circle of diameter 0.8mm
Shape structure, 0.005mm circle depth, circle is between left and right away from 0.3mm, between the upper and lower away from being according to curve T1 different curvature spacing
0.18-0.4mm.Influencing dead line gradient is at integrated curved 0-2/3, and remaining 1/3 curve, which increases micro-structure, influences optical HV
Value, depth can make optics more uniform, brightness meets optical requirement in 0.003mm.
Detailed description of the invention
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
Fig. 1 is the structural schematic diagram of the preferred embodiment of the utility model；
Fig. 2 is the circular microstructure of the utility model between the upper and lower away from schematic diagram；
Fig. 3 is the circular microstructure of the utility model between left and right away from schematic diagram.
Specific embodiment
As shown in Figure 1-3, a kind of heavy section casting lens die with micro-structure, including lens die ontology 101, it is described
Mirror die ontology 101 is hollow semicircular structure, and surface exhibits are the curve T of several rotational symmetry；The lens mould
Have 1 surface of ontology and be equipped with several micro-structures 102, per the micro-structure 2 described two-by-two between left and right away from 0.3mm, upper and lower spacing root
It is 0.18-0.4mm according to curve T different curvature spacing.The preferably circular micro-structure of micro-structure 102 of the utility model.Lens mould
It is arrived down at the round highest point 0 for having 101 surface of ontology at the 2/3 of its surface as influence optics of lens performance dead line gradient
The region of value, surface 2/3 at face extremities 1 to influence the region optics of lens performance HV；The influence optics of lens
Circular microstructure diameter in the region of performance dead line gradient value is 0.8mm, depth 0.005mm；The influence lens light
Learning the circular microstructure diameter in the region performance HV is 0.8mm, depth 0.003mm.
The design of lens is the focal length (being configured according to the inner space of whole lamp) according to different lens modules, different
Lens module bore (being calculated according to vehicle factor moulding) is calculated by optical software；Because focal length and bore are unique
So the lens obtained are also unique.It is different from firstly, carrying out microstructure design on 101 surface of lens die ontology in product
Surface increases micro-structure and is then copied to die surface, and advantage is when avoiding mold design due to different effect of contraction micro-structures
Distribution.Secondly, the micro-structure 102 of design is circular microstructure, it is also possible big with graphics area to be changed to other shape
It is small related；Diameter is that 0.8mm requires to be designed for dead line gradient in ECE light distribution requirements is met, and shows as diameter
The circular configuration of 0.8mm, 0.005mm circle depth, circle is between left and right away from 0.3mm, between the upper and lower away from according to curve T1 different curvature
Spacing is 0.18-0.4mm.Influencing dead line gradient is at integrated curved 0-2/3, and remaining 1/3 curve, which increases micro-structure, influences light
HV value, depth can make optics more uniform, brightness meets optical requirement in 0.003mm.
The operating procedure of the processing method of heavy section casting lens die with micro-structure is as follows:
1. lathe is selected to mill for common three-axis numerical control, the cutter of R2, lathe revolving speed S18800, lathe feeding speed F are selected
300, same cutter track carries out the processing of feed twice, and centre can guarantee surface smoothness, first time milling cutter cutter track without tool changing
Raise 0.01mm progress；
2. the cutter track track for doing micro-structure needs to select to select upmilling mode to carry out from upper downward spiral.Feed process is not
Energy cutter lifting, it is from the beginning smooth to link up on earth.
3. whole process needs to carry out 12 hours, working (finishing) area about 50 × 70mm, need to guarantee that lathe keeps booting
State can not shut down, and can not return dot, not reproducible positioning
It is rinsed well 4. completing the process, is wiped using W5 abrasive pastes, obtain mirror finish.
It should be appreciated that specific embodiment described above is only used for explaining the utility model, it is not used to limit this reality
With novel.By the utility model the obvious changes or variations extended out of spirit still in the utility model protection
Among range.
Claims (3)
1. a kind of heavy section casting lens die with micro-structure, it is characterised in that: including lens die ontology (1), the lens
Die ontology (101) is hollow semicircular structure, and surface exhibits are the curve T of several rotational symmetry；The lens mould
Have ontology (101) surface and be equipped with several micro-structures (102), per described two-by-two micro-structure (2) between left and right away from 0.3mm, thereon
Lower spacing is 0.18-0.4mm according to curve T different curvature spacing.
2. a kind of heavy section casting lens die with micro-structure according to claim 1, it is characterised in that: micro- knot
Structure (102) is circular microstructure.
3. a kind of heavy section casting lens die with micro-structure according to claim 2, it is characterised in that: the lens mould
It is arrived down at the round highest point 0 for having ontology (101) surface terraced to influence optics of lens performance dead line at the 2/3 of its surface
The region of angle value, surface 2/3 at face extremities 1 to influence the region optics of lens performance HV；The influence lens light
Learning the circular microstructure diameter in the region of performance dead line gradient value is 0.8mm, depth 0.005mm；The influence lens
Circular microstructure diameter in the region optical property HV is 0.8mm, depth 0.003mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821005260.8U CN208615346U (en) | 2018-06-28 | 2018-06-28 | A kind of heavy section casting lens die with micro-structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821005260.8U CN208615346U (en) | 2018-06-28 | 2018-06-28 | A kind of heavy section casting lens die with micro-structure |
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| Publication Number | Publication Date |
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| CN208615346U true CN208615346U (en) | 2019-03-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108819300A (en) * | 2018-06-28 | 2018-11-16 | 常州星宇车灯股份有限公司 | A kind of heavy section casting lens die and its processing method with micro-structure |
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2018
- 2018-06-28 CN CN201821005260.8U patent/CN208615346U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108819300A (en) * | 2018-06-28 | 2018-11-16 | 常州星宇车灯股份有限公司 | A kind of heavy section casting lens die and its processing method with micro-structure |
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