CN209505574U - Optics mold insert - Google Patents
Optics mold insert Download PDFInfo
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- CN209505574U CN209505574U CN201822236500.1U CN201822236500U CN209505574U CN 209505574 U CN209505574 U CN 209505574U CN 201822236500 U CN201822236500 U CN 201822236500U CN 209505574 U CN209505574 U CN 209505574U
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- pattern portion
- mold insert
- pattern
- decorative pattern
- positioning region
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Abstract
The utility model relates to a kind of optics mold inserts.Optics mold insert described in the utility model includes: including pattern portion corresponding with sighting device decorative pattern, positioning region, and the pattern portion is half revolving body, and the end face of pattern portion is arranged in the positioning region.Optics mold insert described in the utility model has the advantages that processing fillet is lesser.
Description
Technical field
The utility model relates to technical field of mold, more particularly to a kind of optics mold insert.
Background technique
In automobile tail high-mount stop lamp, in order to obtain light shape, the brightness that design needs, it will usually in LED light
Light emission direction is provided with plastic optics component.Its principle is: the light of LED light transmitting is by the sighting device on plastic optics component
Decorative pattern, Fei Nier decorative pattern, the multipath reflection of micro-optics decorative pattern, refraction, to obtain light shape, the brightness that design needs.
It follows that plastic optics component has important optical effect in automobile tail high-mount stop lamp, correspond to
Mold cavity requirement on machining accuracy be high.Wherein, sighting device decorative pattern carries out first time refraction/reflection to LED light light,
Its machining accuracy has larger impact to subsequent refraction/reflection, therefore, the machining accuracy of sighting device decorative pattern tool whether up to standard
It is of great importance.In addition, applicant has found in the actual operation process, the important indicator for influencing sighting device decorative pattern light distribution precision has
The facial contour precision of surface profile, the fillet precision of decorative pattern angle will affect plastic optics component if These parameters are not up to standard
Light distribution precision.
In order to manufacture the decorative pattern of sighting device, need to need to place with corresponding with sighting device decorative pattern in mold cavity
The mold insert of decorative pattern, the machining accuracy of the mold insert decorative pattern will affect the machining accuracy of sighting device decorative pattern.It is directed to sighting device decorative pattern in the past
The processing of mold insert mainly use milling or EDM spark discharge to process.
For Milling Process, referring to Figure 1, Fig. 1 be existing mold insert structural schematic diagram, the mold insert include pedestal 1 and
The decorative pattern 2 of half revolving body of 1 top surface of pedestal is set, and the section of the decorative pattern 2 is zigzag.In the actual processing process, due to
Milling cutter high speed rotation during feed, so being easy to appear processing in the root 4 of the junction 3 of decorative pattern 2 and pedestal 1, decorative pattern 2
Fillet, the processing fillet will affect light distribution effect.Also, milling cutter diameter is limited, and the diameter of milling cutter minimum cutter is at present
The minimum value of 0.2mm, i.e. the processing fillet of decorative pattern 2 can only achieve R0.1mm, this processing fillet is ratio to the scattering process of light
It is biggish, it can significantly change the theoretical light shape of optical foresight decorative pattern.
It is processed for EDM spark discharge, continuing with referring to Fig. 1, in the actual processing process, EDM spark discharge adds
Work still can make the junction 3 of decorative pattern 2 and pedestal 1, the root 4 of decorative pattern 2 be easy to appear processing fillet.Although EDM electric spark is put
Electric machining can accomplish the processing fillet of decorative pattern 2 to be less than R0.05mm, but finished surface obtained by electrical discharge machining is excessively thick
It is rough, it is unable to reach optical mirror plane level, seriously affects the light transmittance of sighting device decorative pattern.And if carried out to surface machined by EDM
It is polished to optical mirror plane, then certainly exists polishing problem on deformation, the surface profile profile tolerance of sighting device will be unable to up to standard, final shadow
Ring light shape.
Utility model content
Based on this, the purpose of the utility model is to provide a kind of optics mold inserts, have processing fillet lesser excellent
Point.
A kind of optics mold insert includes pattern portion corresponding with sighting device decorative pattern, positioning region, and the pattern portion is half to turn round
The end face of pattern portion is arranged in body, the positioning region.
Further, the axial cross section of the decorative pattern section is zigzag, process fillet half of the root of the decorative pattern section
Diameter is 0.03mm, and the angle of the root of the decorative pattern section is greater than 2 degree of grinding wheel wedge angle angle.
Further, the section of the positioning region is rectangular, and bottom surface is parallel to the bottom surface of decorative pattern section.
It further, further include mounting portion, the bottom surface of pattern portion is arranged in the mounting portion, and the section of the mounting portion is
It is rectangular.
Further, the optics mold insert is quenched before finishing, makes its hardness 46 to 48HRC.
Compared with the existing technology, the revolving body that the pattern portion of optics mold insert described in the utility model is half, the pattern portion
It is that roughing comes out in the way of turning, then, utilizes the point of a knife fillet (minimum R0.05mm) or abrasive grinding wheel knife of lathe tool
Sharp fillet (minimum R0.03mm) reduces the processing fillet of the root of pattern portion, and then reduces the processing fillet of mold insert decorative pattern.Its
In, half finish turning pattern portion, minimum process fillet can reach R0.1mm；Finish turning pattern portion, minimum process fillet are controllable
It makes and is less than R0.1mm, finished surface can reach sub- mirror surface, and it is subsequent without carrying out polishing process, it can effectively avoid polishing deformation；
Optical grinding pattern portion, minimum process fillet, which can control, is less than R0.1mm, and finished surface can reach sub- mirror surface, subsequent to be not necessarily to
Polishing process is carried out, can effectively avoid polishing deformation.Moreover, for half smart car or smart car pattern portion, which can be
It is completed on one trolley bed, reduces workpiece and assemble number, efficiently reduce the mismachining tolerance of workpiece.In addition, the root of decorative pattern section
Angle is greater than 2 degree of grinding wheel wedge angle angle, convenient for the root of wheel grinding decorative pattern section；The section of positioning region be it is rectangular, convenient for plus
Work, installation；Its hardness is 46 to 48HRC after the quenching of optics mold insert, is effectively prevented optics mold insert and becomes in subsequent handling
Shape.
In order to better understand and implement, according to the present invention will be described in detail below with reference to the accompanying drawings.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of existing mold insert；
Fig. 2 is the structural schematic diagram of optics mold insert of the present invention；
Fig. 3 is the flow chart of the processing method of optics mold insert described in embodiment one；
Fig. 4 is the flow chart of the processing method of optics mold insert described in embodiment two；
Fig. 5 is the flow chart of the processing method of optics mold insert described in embodiment three；
Fig. 6 is the flow chart of step S7 in embodiment three；
Fig. 7 is the structural schematic diagram for completing the optics mold insert after step S1；
Fig. 8 is the structural schematic diagram for completing the optics mold insert after step S3；
Fig. 9 is the structural schematic diagram for completing the optics mold insert after step S5；
Appended drawing reference:
1, pedestal；2, decorative pattern；3, junction；4, root；
10, pattern portion；20, positioning region；21, end standard；22, cylinder benchmark；30, mounting portion.
Specific embodiment
A kind of optics mold insert, referring to fig. 2 comprising pattern portion 10, positioning region 20, mounting portion 30.Wherein, pattern portion 10 is
Half revolving body, the axial cross section of decorative pattern section are zigzag, and the radius of the processing fillet of the root of decorative pattern section is 0.03mm, decorative pattern section
Root angle be greater than 2 degree of grinding wheel wedge angle angle.The right side of pattern portion 10 is arranged in positioning region 20, as processing decorative pattern
The benchmark in portion 10, specifically, the section of positioning region 20 be it is rectangular, bottom surface is parallel to the bottom surface of decorative pattern section.Mounting portion 30 is arranged
In the bottom surface of pattern portion 10, it to be used for the installation of optics mold insert.In addition, the optics mold insert carries out at quenching before finishing
Reason, makes its hardness reach 46 to 48HRC.
To process above-mentioned optics mold insert, the present invention provides three kinds of processing methods, and the process principle of three kinds of processing methods is vehicle
The point of a knife of the point of a knife of knife or grinding wheel processes the decorative pattern of mold insert, can theoretically make the angle of the angle point of a knife of the root of decorative pattern
Degree, to realize the processing of the minimum process fillet of mold insert decorative pattern.
Since the point of a knife of lathe tool or grinding wheel has fillet, so the root of the decorative pattern of mold insert still has processing fillet
Problem.But the point of a knife fillet minimum of lathe tool can be R0.05mm, the point of a knife fillet minimum of grinding wheel can be R0.03mm, adopt
The processing fillet of mold insert decorative pattern can still be controlled in R0.1mm hereinafter, simultaneously with the processing method of optics mold insert of the present invention
And it can also realize the processing fillet R0.03mm processing of mold insert decorative pattern.
Embodiment one
A kind of processing method of optics mold insert, referring to Fig. 3 comprising following steps:
S0, buying bar；
S1, the rough turn positioning datum for cutting out pattern portion 10 corresponding with sighting device decorative pattern and pattern portion 10 on bar；
Specifically, refer to Fig. 7, on bar numerical control it is rough turn cut out pattern portion 10 corresponding with sighting device decorative pattern and
The positioning region 20 of 10 end face of pattern portion is set, at this point, pattern portion 10 is revolving body, positioning region 20 is cylindrical body, positioning region 20
Coaxial with pattern portion 10, the end face of positioning region 20 is end standard 21, and the side of positioning region 20 is cylinder benchmark 22；
S2, the workpiece after roughing is heat-treated；
Specifically, the workpiece after roughing is quenched, quenched workpiece hardness is 46 to 48HRC；
The positioning datum of S3, finishing step S1；
Specifically, Fig. 8, numerical control finish turning end standard 21, cylinder benchmark 22 are referred to；
S4, the end standard 21 according to step S3, cylinder benchmark 22, the surface and its root of finish turning pattern portion 10；
Specifically, the processing fillet of the root of numerical control finish turning pattern portion 10 is to R0.08mm；
S5, workpiece it is online be cut into for mold insert installation mounting portion 30；
Specifically, Fig. 9 is referred to, rectangular mounting portion 30 is cut into the bottom line of pattern portion 10；
The plane of S6, the grinding mounting portion 30；
Specifically, Fig. 2 is referred to, the lateral surface of positioning region 20, mounting portion 30 is ground, adds positioning region 20, mounting portion 30
Work is at cuboid.
Using the processing method of optics mold insert described in embodiment one, by finish turning pattern portion 10, by the root of pattern portion 10
The processing fillet control in portion can reach sub- mirror surface to R0.05mm finished surface is less than or equal to, subsequent without carrying out polishing process,
It can effectively avoid polishing deformation；Mounting portion 30 is cut by way of wire cutting, effectively avoids workpiece in process
Middle stress deformation；Then, the installation accuracy of optics mold insert is improved by being ground the plane of mounting portion 30.
Embodiment two
A kind of processing method of optics mold insert, referring to fig. 4 comprising following steps:
S0, buying bar；
S1, the rough turn positioning datum for cutting out pattern portion 10 corresponding with sighting device decorative pattern and pattern portion 10 on bar；
Specifically, refer to Fig. 7, on bar numerical control it is rough turn cut out pattern portion 10 corresponding with sighting device decorative pattern and
The positioning region 20 of 10 end face of pattern portion is set, at this point, pattern portion 10 is revolving body, positioning region 20 is cylindrical body, positioning region 20
Coaxial with pattern portion 10, the end face of positioning region 20 is end standard 21, and the side of positioning region 20 is cylinder benchmark 22；
S2, the workpiece after roughing is heat-treated；
Specifically, the workpiece after roughing is quenched, quenched workpiece hardness is 46 to 48HRC；
The positioning datum of S3, finishing step S1；
Specifically, Fig. 8, numerical control finish turning end standard 21, cylinder benchmark 22 are referred to；
S5, workpiece it is online be cut into for mold insert installation mounting portion 30；
Specifically, Fig. 9 is referred to, rectangular mounting portion 30 is cut into the bottom line of pattern portion 10；
The plane of S6, the grinding mounting portion 30；
Specifically, Fig. 2 is referred to, the lateral surface of positioning region 20, mounting portion 30 is ground, adds positioning region 20, mounting portion 30
Work is at cuboid；
S4, the end standard 21 according to step S3, cylinder benchmark 22, the surface and its root of optical grinding pattern portion 10；
Specifically, in the case where optical image amplifies 20 to 50 times, turning grinding wheels profile makes the angle of grinding wheel wedge angle be less than workpiece
2 degree of angle, the radius of grinding wheel wedge angle is less than or equal to 0.03m；In the case where optical image amplifies 20 to 50 times, detect outside grinding wheel
Shape continues turning grinding wheels profile if grinding wheel shape is unqualified, if grinding wheel shape is qualified, amplifies 20 in optical image
To under 50 times, abrasion wheel grinding pattern portion 10, the depth of cut for roughly grinding lower grinding wheel is 0.01m, and the depth of cut for refining lower grinding wheel is
0.002mm；Period, in the case where optical image amplifies 20 to 50 times, dynamic detection grinding wheel shape continues if grinding wheel shape is qualified
Abrasion wheel grinding pattern portion 10 is carried out, if grinding wheel shape is unqualified, in the case where optical image amplifies 20 to 50 times, turning grinding wheels wheel
Exterior feature, the complete laggard Mobile state of turning detect grinding wheel shape；Also, using the root of optical projection grinder optics grinding pattern portion 10
Processing fillet to R0.05mm.
Using the processing method of optics mold insert described in embodiment two, mounting portion 30 is cut by way of wire cutting
Come, effectively avoids workpiece stress deformation in process, and be convenient for installation of workpiece during optical grinding；Then,
The installation accuracy of optics mold insert is improved by being ground the plane of mounting portion 30；By optical grinding pattern portion 10, by pattern portion
To R0.03mm is less than or equal to, finished surface can reach sub- mirror surface, subsequent without being thrown for the processing fillet control of 10 root
Light process can effectively avoid polishing deformation.
Embodiment three
A kind of processing method of optics mold insert, referring to Fig. 5 comprising following steps:
S1, the rough turn positioning datum for cutting out pattern portion 10 corresponding with sighting device decorative pattern and pattern portion 10 on bar；
Specifically, refer to Fig. 7, on bar numerical control it is rough turn cut out pattern portion 10 corresponding with sighting device decorative pattern and
The positioning region 20 of 10 end face of pattern portion is set, at this point, pattern portion 10 is revolving body, positioning region 20 is cylindrical body, positioning region 20
Coaxial with pattern portion 10, the end face of positioning region 20 is end standard 21, and the side of positioning region 20 is cylinder benchmark 22；
S2, the workpiece after roughing is heat-treated；
Specifically, the workpiece after roughing is quenched, quenched workpiece hardness is 46 to 48HRC；
The positioning datum of S3, finishing step S1；
Specifically, Fig. 8, numerical control finish turning end standard 21, cylinder benchmark 22 are referred to；
S4, the end standard 21 according to step S3, cylinder benchmark 22, pattern portion 10 described in half finish turning；
Specifically, the processing fillet of the root of half smart car pattern portion 10 of numerical control is to R0.1mm；
S5, workpiece it is online be cut into for mold insert installation mounting portion 30；
Specifically, Fig. 9 is referred to, rectangular mounting portion 30 is cut into the bottom line of pattern portion 10；
The surface and its root of the plane of mounting portion 30, pattern portion 10 described in S6, fine ginding；
Specifically, Fig. 2 is referred to, the lateral surface of positioning region 20, mounting portion 30 is refined, adds positioning region 20, mounting portion 30
Work is easily installed at cuboid, and the processing fillet of the root of pattern portion 10 is made to reach R0.06 to R0.08mm；
Pattern portion 10 described in S7, optical grinding；
Specifically, optical image amplify 20 to 50 times under, optical projection grinder be ground pattern portion 10 surface and its
Root makes the processing fillet of the root of decorative pattern reach R0.03mm.
Wherein, Fig. 6 is referred to, step S7 specifically comprises the following steps:
S71, in the case where optical image amplifies 20 to 50 times, turning grinding wheels profile makes the angle of grinding wheel wedge angle be less than workpiece
2 degree of angle, the radius of grinding wheel wedge angle is less than or equal to 0.03m；
S72, optical image amplify 20 to 50 times under, detection grinding wheel shape continue if grinding wheel shape is unqualified
Step S71 is carried out in next step if grinding wheel shape is qualified；
S73, in the case where optical image amplifies 20 to 50 times, abrasion wheel grinding pattern portion 10, the depth of cut for roughly grinding lower grinding wheel is
0.01m, the depth of cut for refining lower grinding wheel is 0.002mm；
S74, in the case where optical image amplifies 20 to 50 times, dynamic detection grinding wheel shape, if grinding wheel shape is qualified, continue into
Row step S73 is carried out in next step if grinding wheel shape is unqualified；
S75, optical image amplify 20 to 50 times under, turning grinding wheels profile, turning it is complete after carry out step S74.
The root of pattern portion 10 is made by half smart car pattern portion 10 using the processing method of optics mold insert described in embodiment three
The processing fillet in portion reaches R0.1mm, and optical grinding is recycled to process pattern portion 10, makes the processing circle of the root of pattern portion 10
Angle can achieve R0.03mm, effectively improve the machining accuracy of mold insert；It, will peace by way of wire cutting before optical grinding
Dress portion 30 is cut into, and effectively avoids workpiece stress deformation in process, and convenient for workpiece during optical grinding
Installation；Then, the installation accuracy of optics mold insert is improved by being ground the plane of mounting portion 30.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.
Claims (4)
1. a kind of optics mold insert, it is characterised in that: including pattern portion (10) corresponding with sighting device decorative pattern, positioning region (20),
The pattern portion (10) is half revolving body, end face of positioning region (20) setting in pattern portion (10).
2. optics mold insert according to claim 1, it is characterised in that: the outer profile of the axial cross section of the pattern portion (10)
Radius for zigzag, the processing fillet of the root of the pattern portion (10) is 0.03mm, the root of the pattern portion (10)
Angle is greater than 2 degree of grinding wheel wedge angle angle.
3. optics mold insert according to claim 1, it is characterised in that: the section of the positioning region (20) is rectangular, bottom
Face is parallel to the bottom surface of pattern portion (10).
4. optics mold insert according to claim 1, it is characterised in that: it further include mounting portion (30), the mounting portion (30)
Bottom surface in pattern portion (10) is set, and the section of the mounting portion (30) is rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822236500.1U CN209505574U (en) | 2018-12-28 | 2018-12-28 | Optics mold insert |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822236500.1U CN209505574U (en) | 2018-12-28 | 2018-12-28 | Optics mold insert |
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| Publication Number | Publication Date |
|---|---|
| CN209505574U true CN209505574U (en) | 2019-10-18 |
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ID=68198140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822236500.1U Active CN209505574U (en) | 2018-12-28 | 2018-12-28 | Optics mold insert |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109623284A (en) * | 2018-12-28 | 2019-04-16 | 广州导新模具注塑有限公司 | The processing method of optics mold insert and a kind of optics mold insert |
-
2018
- 2018-12-28 CN CN201822236500.1U patent/CN209505574U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109623284A (en) * | 2018-12-28 | 2019-04-16 | 广州导新模具注塑有限公司 | The processing method of optics mold insert and a kind of optics mold insert |
| CN109623284B (en) * | 2018-12-28 | 2023-11-14 | 广州导新模具注塑有限公司 | Optical insert machining method and optical insert |
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