CN117381340A - Processing method of laser mask optical surface die - Google Patents
Processing method of laser mask optical surface die Download PDFInfo
- Publication number
- CN117381340A CN117381340A CN202311041256.2A CN202311041256A CN117381340A CN 117381340 A CN117381340 A CN 117381340A CN 202311041256 A CN202311041256 A CN 202311041256A CN 117381340 A CN117381340 A CN 117381340A
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- China
- Prior art keywords
- die
- die steel
- optical surface
- laser mask
- steps
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 230000003287 optical effect Effects 0.000 title claims abstract description 19
- 238000003672 processing method Methods 0.000 title claims abstract description 6
- 238000005498 polishing Methods 0.000 claims abstract description 39
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 35
- 239000010959 steel Substances 0.000 claims abstract description 35
- 244000137852 Petrea volubilis Species 0.000 claims abstract description 18
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 17
- 239000010432 diamond Substances 0.000 claims abstract description 17
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 241001481789 Rupicapra Species 0.000 claims abstract description 8
- 238000010791 quenching Methods 0.000 claims abstract description 6
- 230000000171 quenching effect Effects 0.000 claims abstract description 6
- 239000010985 leather Substances 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 17
- 230000000087 stabilizing effect Effects 0.000 claims description 9
- 238000003754 machining Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/24—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J11/00—Manipulators not otherwise provided for
- B25J11/005—Manipulators for mechanical processing tasks
- B25J11/0065—Polishing or grinding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Robotics (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention discloses a processing method of a laser mask optical surface die, which comprises the following steps: step one: selecting die steel for heat treatment quenching and then deep well cooling; step two: carrying out single point turning on the die steel by using a single point diamond lathe, wherein the rotating speed of a main shaft of the single point diamond lathe is controlled to be 250-300 revolutions per minute, and the feeding speed is controlled to be 0.5-2 um per minute; step three: sequentially polishing the die steel step by adopting abrasive paper with 1500 meshes to 3000 meshes and polishing liquid; step four: the die steel was polished step by step with a chamois-bonded diamond paste having a grain size of W3.5 to W0.5. The requirement of grinding by using low-mesh sand paper is reduced, the sand paper with 1500-3000 meshes can be directly used for grinding, and after grinding, the die steel is polished step by combining the chamois leather with diamond paste with the granularity number of W3.5-W0.5, so that the die finish of the optical surface of the laser mask can be quickly up to 8nm.
Description
Technical Field
The invention relates to the field of dies, in particular to a processing method of a laser mask optical surface die.
Background
With the rapid development of the automobile industry, requirements on automobile lamps, laser radars, HUDs and the like in the industry are higher and higher, the smoothness and the function of the functional surface are guaranteed, and when the moulds of the automobile lamps, the laser radars and the HUDs are manufactured, a manual polishing procedure is generally adopted after rough machining. In particular to sanding a working surface with higher required finish by using sand paper in a stepped way. If the working surface is firstly subjected to primary sanding by selecting 180-mesh sand paper, then sequentially selecting 240-mesh sand paper, 360-mesh sand paper, 600-mesh sand paper and 800-mesh sand paper step by step, and finally selecting 1200-mesh sand paper for light receiving. The surface flatness polished in this way is difficult to meet the requirement, and the process is complicated.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent: the processing method of the laser mask optical surface die can enable the finish of the processed laser mask optical surface die to reach 8nm.
Therefore, an object of the present invention is to provide a method for processing an optical surface mold of a laser mask, which includes the following steps:
step one: selecting die steel for heat treatment quenching and then deep well cooling;
step two: carrying out single point turning on the die steel by using a single point diamond lathe, wherein the rotating speed of a main shaft of the single point diamond lathe is controlled to be 250-300 revolutions per minute, and the feeding speed is controlled to be 0.5-2 um per minute;
step three: sequentially polishing the die steel step by adopting abrasive paper with 1500 meshes to 3000 meshes and polishing liquid;
step four: the die steel was polished step by step with a chamois-bonded diamond paste having a grain size of W3.5 to W0.5.
Preferably, in the first step, the die steel with the surface hardness of 51HRC to 53HRC is selected, the heat treatment temperature is 780 ℃ to 820 ℃, and the deep well cooling temperature is lower than-193 ℃.
Preferably, deep well cooling at a temperature below-193 ℃ is performed at least twice.
Preferably, each different grade of step three and step four is performed at least three times.
Preferably, at least one of the third step and the fourth step adopts a mechanical polishing arm to polish the die steel.
Preferably, the mechanical polishing arm comprises a clamping arm and a polishing arm, the clamping arm sequentially comprises a rotating head and a swing arm, the polishing arm comprises a flexible pad, a telescopic assembly and a voltage stabilizing assembly, and the rotating head rotates to drive die steel to rotate and to abut against the flexible pad with chamois or sand paper for polishing.
Preferably, the telescopic assembly comprises a plurality of telescopic rods, and the pressure stabilizing assembly enables the telescopic rods to stably support the flexible cushion after being telescopic, so that the flexible cushion stably abuts against the die steel.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
The technical scheme has the following advantages or beneficial effects: firstly, carrying out deep well cooling after heat treatment quenching to obtain die steel with stable properties, so that after single-point turning, a surface with a regular large-area finish rms reaching 25-30 can be obtained, namely, the die steel with the regular large-area finish rms reaching 25-30 can be directly obtained, high-mesh polishing can be directly carried out, the requirement of grinding with low-mesh sand paper is reduced, 1500-3000-mesh sand paper can be directly used for grinding, and after grinding, the die steel is polished step by combining the chamois leather with diamond paste with the granularity number W3.5-W0.5, and the die finish of the optical surface of the laser mask can be rapidly reached 8nm.
Drawings
Fig. 1 is a flow chart of a method of processing a laser mask optical surface die of the present invention.
Fig. 2 is a schematic structural view of the mechanical polishing arm of the present invention.
Fig. 3 is a schematic view of a part of the structure of the polishing arm of the present invention.
Wherein, 1, clamping arm; 11. turning the head; 12. swing arms; 2. a polishing arm; 21. a flexible pad; 22. a telescoping assembly; 221. a telescopic rod; 23. and a voltage stabilizing component.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
A method for processing a laser mask optical surface mold according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
As shown in figures 1, 2 and 3,
step one: selecting die steel with the surface hardness of 51-53 HRC for heat treatment, wherein the heat treatment temperature is 780-820 ℃, quenching and deep well cooling are carried out, and the temperature of the deep well cooling is lower than-193 ℃;
step two: carrying out single point turning on the die steel by using a single point diamond lathe, wherein the rotating speed of a main shaft of the single point diamond lathe is controlled to be 250-300 revolutions per minute, and the feeding speed is controlled to be 0.5-2 um per minute;
step three: sequentially polishing the die steel step by adopting 1500-3000 mesh sand paper and polishing liquid, and detecting each time at least three times;
step four: and polishing the die steel step by adopting the chamois and diamond paste with the granularity number of W3.5 to W0.5, performing at least three times and detecting one by one each time.
The single-point diamond lathe is provided with an ultra-precise aerostatic spindle, the diamond tool bit has high stability, the thermal deformation is reduced to the minimum, the large-area regular surface finish machining can be quickly and efficiently performed, deep well cooling is performed after heat treatment quenching to obtain die steel with stable properties, after single-point lathe machining, the surface with the regular large-area finish rms reaching 25-30 can be obtained, the die steel with the regular large-area finish rms reaching 25-30 can be directly obtained, high-mesh polishing can be directly performed, the requirement of low-mesh sand paper polishing is reduced, 1500-3000-mesh sand paper can be directly used for polishing, the die steel is polished step by step after polishing, and the die finish of the optical surface of the laser mask can be quickly polished by combining diamond paste with the particle size number W3.5-W0.5.
In the third step and the fourth step, at least the step adopts the mechanical polishing arm 2 for polishing, because the requirements on the finish rms are higher, the conventional mechanical polishing is difficult to achieve, and in order to avoid more manual polishing, the invention adopts the special mechanical polishing arm 2 for polishing, the mechanical polishing arm 2 comprises a clamping arm 1 and a polishing arm 2, the clamping arm 1 sequentially comprises a rotary head 11 and a swing arm 12, the polishing arm 2 comprises a flexible pad 21, a telescopic component 22 and a voltage stabilizing component 23, and the rotary head 11 rotates to drive die steel to rotate and to be in contact with suede or sand paper on the flexible pad 21 for polishing. The flexible pad 21 is used for connecting with chamois or sand paper, the flexible assembly 22 comprises a plurality of flexible rods 221, the pressure stabilizing assembly 23 enables the flexible rods 221 to stably support the flexible pad 21 after being stretched, the flexible pad 21 can be well deformed to adapt to the stretching of the flexible assembly 22, the flexible pad 21 is stably abutted on die steel, the polishing effect can be better, the voltage stabilizing component 23 connect with every telescopic link 221 and make the flexible power size that receives of every telescopic link 221 unanimous, make chamois leather or abrasive paper and the even contact of mould steel on the flexible pad 21, voltage stabilizing component 23 can be a cylinder and be connected with every telescopic link 221, make chamois leather or abrasive paper and the even contact of mould steel on the flexible pad 21, polishing arm 2 guarantees even contact, centre gripping arm 1 can carry out the removal of great scope, can polish by the efficient.
It should be noted that, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Various alterations and modifications will no doubt become apparent to those skilled in the art after having read the above description. Therefore, the appended claims should be construed to cover all such variations and modifications as fall within the true spirit and scope of the invention. Any and all equivalents and alternatives falling within the scope of the claims are intended to be embraced therein.
Claims (7)
1. The processing method of the laser mask optical surface die is characterized by comprising the following steps of:
step one: selecting die steel for heat treatment quenching and then deep well cooling;
step two: carrying out single point turning on the die steel by using a single point diamond lathe, wherein the rotating speed of a main shaft of the single point diamond lathe is controlled to be 250-300 revolutions per minute, and the feeding speed is controlled to be 0.5-2 um per minute;
step three: sequentially polishing the die steel step by adopting abrasive paper with 1500 meshes to 3000 meshes and polishing liquid;
step four: the die steel was polished step by step with a chamois-bonded diamond paste having a grain size of W3.5 to W0.5.
2. The method for processing the optical surface die of the laser mask according to claim 1, wherein the method comprises the following steps: in the first step, the die steel with the surface hardness reaching 51HRC to 53HRC is selected, the heat treatment temperature is 780 ℃ to 820 ℃, and the deep well cooling temperature is lower than-193 ℃.
3. The method for processing the optical surface die of the laser mask according to claim 2, wherein the method comprises the following steps: deep well cooling at a temperature below-193 ℃ is performed at least twice.
4. The method for processing the optical surface die of the laser mask according to claim 1, wherein the method comprises the following steps: and step three and step four, each different grade is processed at least three times.
5. The method for processing the optical surface die of the laser mask according to claim 1, wherein the method comprises the following steps: and step three and step four, at least one step adopts a mechanical polishing arm to polish the die steel.
6. The method for processing the optical surface die of the laser mask according to claim 6, wherein the method comprises the following steps: the mechanical polishing arm comprises a clamping arm (1) and a polishing arm (2), the clamping arm (1) sequentially comprises a rotary head (11) and a swing arm (12), the polishing arm (2) comprises a flexible pad (21), a telescopic component (22) and a voltage stabilizing component (23), and the rotary head (11) rotates to drive die steel to rotate and to abut against the flexible pad (21) to polish chamois leather or sand paper.
7. The method for processing the optical surface die of the laser mask according to claim 7, wherein the method comprises the following steps: the telescopic assembly (22) comprises a plurality of telescopic rods (221), and the voltage stabilizing assembly (23) enables the telescopic rods (221) to stably support the flexible pad (21) after being telescopic, so that the flexible pad (21) stably abuts against the die steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311041256.2A CN117381340A (en) | 2023-08-18 | 2023-08-18 | Processing method of laser mask optical surface die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311041256.2A CN117381340A (en) | 2023-08-18 | 2023-08-18 | Processing method of laser mask optical surface die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117381340A true CN117381340A (en) | 2024-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311041256.2A Pending CN117381340A (en) | 2023-08-18 | 2023-08-18 | Processing method of laser mask optical surface die |
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| Country | Link |
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| CN (1) | CN117381340A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102059349A (en) * | 2010-11-18 | 2011-05-18 | 哈尔滨工业大学 | Processing method for ultraprecise turning of die steel material by adopting diamond cutter |
| CN104802064A (en) * | 2015-03-27 | 2015-07-29 | 於正华 | Five-axis linking numerical control manipulator type polishing machine |
| CN108161380A (en) * | 2017-12-04 | 2018-06-15 | 南通斯迈尔精密设备有限公司 | A kind of pocket machining technique of semiconductor packaging mold |
| CN108555552A (en) * | 2018-04-14 | 2018-09-21 | 上海小糸车灯有限公司 | Mould of car lamp parts machining process |
| CN110202167A (en) * | 2019-05-24 | 2019-09-06 | 南通天鸿镭射科技有限公司 | The technique of single-point diamond lathe tool processing cemented carbide material optical mould |
| CN110314954A (en) * | 2019-07-29 | 2019-10-11 | 中国兵器工业第五九研究所 | A kind of preparation method of high viscosity metal cold-extrusion shaping mold |
| DE102020110492A1 (en) * | 2019-04-19 | 2020-10-22 | Ferrobotics Compliant Robot Technology Gmbh | DEVICE FOR ROBOTIC PROCESSING OF SURFACES |
| CN217291882U (en) * | 2022-04-21 | 2022-08-26 | 佛山智优人科技有限公司 | Flexible polishing device |
| CN115284170A (en) * | 2022-07-28 | 2022-11-04 | 彩虹（合肥）液晶玻璃有限公司 | Glass substrate emery wheel protection architecture |
| CN115502845A (en) * | 2022-10-09 | 2022-12-23 | 南通银宝山新科技有限公司 | Polishing and material grain and pit removing process for highlight mold |
| CN115958515A (en) * | 2022-12-21 | 2023-04-14 | 江西正皓瑞森精密智能制造股份有限公司 | Graphite mold polishing method and polishing equipment thereof |
-
2023
- 2023-08-18 CN CN202311041256.2A patent/CN117381340A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102059349A (en) * | 2010-11-18 | 2011-05-18 | 哈尔滨工业大学 | Processing method for ultraprecise turning of die steel material by adopting diamond cutter |
| CN104802064A (en) * | 2015-03-27 | 2015-07-29 | 於正华 | Five-axis linking numerical control manipulator type polishing machine |
| CN108161380A (en) * | 2017-12-04 | 2018-06-15 | 南通斯迈尔精密设备有限公司 | A kind of pocket machining technique of semiconductor packaging mold |
| CN108555552A (en) * | 2018-04-14 | 2018-09-21 | 上海小糸车灯有限公司 | Mould of car lamp parts machining process |
| DE102020110492A1 (en) * | 2019-04-19 | 2020-10-22 | Ferrobotics Compliant Robot Technology Gmbh | DEVICE FOR ROBOTIC PROCESSING OF SURFACES |
| CN110202167A (en) * | 2019-05-24 | 2019-09-06 | 南通天鸿镭射科技有限公司 | The technique of single-point diamond lathe tool processing cemented carbide material optical mould |
| CN110314954A (en) * | 2019-07-29 | 2019-10-11 | 中国兵器工业第五九研究所 | A kind of preparation method of high viscosity metal cold-extrusion shaping mold |
| CN217291882U (en) * | 2022-04-21 | 2022-08-26 | 佛山智优人科技有限公司 | Flexible polishing device |
| CN115284170A (en) * | 2022-07-28 | 2022-11-04 | 彩虹（合肥）液晶玻璃有限公司 | Glass substrate emery wheel protection architecture |
| CN115502845A (en) * | 2022-10-09 | 2022-12-23 | 南通银宝山新科技有限公司 | Polishing and material grain and pit removing process for highlight mold |
| CN115958515A (en) * | 2022-12-21 | 2023-04-14 | 江西正皓瑞森精密智能制造股份有限公司 | Graphite mold polishing method and polishing equipment thereof |
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