Tool for machining aspheric lens array
By designing and installing a substrate with a gap fit between the substrate and the lens, using low-temperature adhesive bonding, and employing a high-precision QV imaging system, the problem of error control in the processing of aspherical lens arrays was solved, achieving high-precision and high-efficiency lens processing.
Patent Information
- Application Number
- CN202423059020.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-12-11
AI Technical Summary
Existing tooling is difficult to use for precise error control in multi-channel aspherical lens processing, making operation difficult and affecting processing efficiency.
Design a tooling for processing aspherical lens arrays. The tooling uses a mounting base and lens with a clearance fit and is connected by low-temperature adhesive. The mounting base is provided with arc grooves and ear holes. It is equipped with a high-precision QV imager to ensure lens positioning and processing accuracy.
It improves the precision and efficiency of lens processing, reduces the difficulty of operation, protects lenses from wear and tear, and ensures the quality of finished products.
Smart Images
Figure CN223466201U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of optical component processing technology, in particular to a tool for processing aspherical lens array. BACKGROUND
[0002] Tool is a device or tool used for processing and manufacturing products. It can position, fix, clamp, hold and measure the product during processing and manufacturing, to ensure the processing quality and repeatability of the product. The design and production of the tool need to be determined according to the processing technology of the product to be processed, and it is usually made of metal and plastic materials, which can withstand cutting force and vibration force during processing.
[0003] In the processing of aspherical lenses, clamping tools are inevitably used, and the design structure of the tool will directly affect the processing quality of the lens and the difficulty of the processing operation. The tool in the prior art often cannot accurately control the error for double-sided processing of multi-channel aspherical lenses. And the operation is difficult, which greatly affects the processing efficiency of the lens. Practical new type content
[0004] In order to improve the tool structure for processing lens array in the prior art, improve the precision of lens processing and reduce the difficulty of processing operation, the present application provides a tool for processing aspherical lens array.
[0005] The tool for processing aspherical lens array provided by the present application adopts the following technical scheme:
[0006] A tool for processing aspherical lens array is used for fixing the lens body during processing of the surface of the aspherical lens, comprising a mounting base plate and a lens mounted in the middle of the mounting base plate, an installation hole is provided in the middle of the mounting base plate, the lens is embedded in the installation hole, and the two sides of the mounting base plate are symmetrically provided with arc grooves, and the axes of the two arc grooves coincide with the axis of the installation hole.
[0007] By adopting the above technical scheme, the mounting base plate can support the surface processing and milling operation of the lens, and since the lens is arranged in the installation hole in the center of the mounting base plate, the lens will not be displaced horizontally by force during processing, improving the processing precision, and the design of the arc groove can position the lens in the horizontal direction, improving the processing precision of the milling operation and reducing the processing difficulty.
[0008] Optionally, a plurality of ear holes are provided in the mounting base plate along the circumference of the installation hole, and the plurality of ear holes are equally spaced and communicate with the installation hole.
[0009] By adopting the technical scheme, the several ear holes are communicated with the mounting holes, the connecting area between the lens and the mounting substrate can be reduced, the lens is convenient to take and hold, and the processing operation convenience and processing efficiency are improved.
[0010] Optionally, the mounting substrate is in clearance fit with the lens, and the connecting mode between the lens and the mounting substrate is low-temperature adhesive connection.
[0011] By adopting the technical scheme, the lens can be buffered when stressed, direct contact between the lens and the mounting substrate can be avoided, the lens is protected, and the position accuracy of the lens processing meets the requirements.
[0012] Optionally, the mounting substrate is connected with a high-precision QV image instrument for measuring the processing allowance of the front and back surfaces of the lens, and the accuracy error range of the QV image instrument is ±2um.
[0013] By adopting the technical scheme, the processing progress of the lens can be monitored in real time during the lens processing, the processing accuracy of the hole channel on the lens is improved, and the quality of the lens product after processing is ensured, and the accuracy error range of the QV image instrument is ±2um, so as to control the wall thickness error of the hole channel of the lens product to be 0.01mm.
[0014] Optionally, the flatness and parallelism of the mounting substrate are required to be within 0.003mm.
[0015] By adopting the technical scheme, the size accuracy of the mounting substrate is a prerequisite for ensuring the position accuracy, wall thickness and coaxiality requirements, and this design can further improve the accuracy and product quality of the lens product.
[0016] Optionally, the mounting substrate is provided with chamfers at four corner positions.
[0017] By adopting the technical scheme, the corner position is a weak position of the structure on the mounting substrate, and the chamfer design at the corner position can avoid damage of the mounting substrate due to stress concentration when the mounting substrate collides, prolong the service life of the whole tooling and improve the structural strength.
[0018] In summary, the present application has at least one of the following beneficial technical effects:
[0019] 1. The present application can improve the processing accuracy of the lens, accurately control the error, realize double-sided processing of the lens, facilitate surface processing of the lens, and reduce the difficulty of lens processing.
[0020] 2. The lens and the mounting base plate in the application are connected in a clearance fit and low-temperature adhesive manner, which can protect the lens and avoid wear and tear of the lens during processing. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 is the overall structure schematic diagram of the tool for processing aspherical lens array of the application.
[0022] Figure 2 is the structure view of the mounting base plate of the tool for processing aspherical lens array of the application.
[0023] Reference signs: 1, mounting base plate; 11, mounting hole; 12, ear hole; 13, arc groove; 2, lens. DETAILED DESCRIPTION
[0024] The following will be combined with the Figures 1-2 The application will be further described in detail.
[0025] The embodiment of the application discloses a tool for processing aspherical lens array.
[0026] Referring to Figure 1 , a tool for processing aspherical lens array is used for limiting and fixing the lens 2 when performing surface processing operation on the aspherical lens. The tool comprises a mounting base plate 1 and a lens 2 arranged in the middle of the mounting base plate 1, wherein the middle of the mounting base plate 1 is provided with a mounting hole 11, the lens 2 is installed in the mounting hole 11 in a clearance fit manner, and the mounting hole 11 on the mounting base plate 1 is connected together through low-temperature adhesive, so as to ensure that the lens 2 will not collide or rub with the mounting base plate 1 during processing, thereby having the protection and processing buffering effect on the lens 2.
[0027] In addition, the connection manner between the lens 2 and the mounting base plate 1 is also convenient for processing and positioning the lens 2, better controls the processing error, and makes the finished lens 2 have higher processing precision and finished product quality.
[0028] Referring to Figure 1 and Figure 2 , further, the opposite two sides of the mounting base plate 1 are symmetrically provided with two arc grooves 13 coaxial with the mounting hole 11, which are used for horizontal positioning of the lens 2 during milling processing, so as to ensure that the milling head will not collide with the mounting base plate 1. At the same time, the arc groove 13 can also reduce the use of materials of the mounting base plate 1, save the material cost of the tool in the manufacturing process, and make the tool have higher practical value.
[0029] In order to ensure the structural strength of the mounting substrate 1 and prolong its service life, the four corners of the mounting substrate 1 are provided with chamfers in the application, so as to avoid the fracture of the mounting substrate 1 when the mounting substrate 1 is subjected to collision, and to play a protective role.
[0030] With reference to Figure 1 and Figure 2 , in addition, a plurality of ear holes 12 are provided on the mounting substrate 1 and communicate with the mounting holes 11, and the plurality of ear holes 12 are evenly distributed along the circumference of the mounting holes 11. The design of the ear holes 12 aims to reduce the bonding area, so as to facilitate the installation and disassembly of the lenses 2, and improve the smoothness and convenience of the tool during use.
[0031] Preferably, the number of ear holes 12 on the mounting substrate 1 in the application is four, so as to ensure that the lenses 2 and the mounting substrate 1 have sufficient connection area and prevent the loosening of the adhesive connection.
[0032] With reference to Figure 1 and Figure 2 , the mounting substrate 1 is connected with a QV image instrument with high precision, so as to be able to monitor the processing allowance of the front and back surfaces of the lenses 2 in real time during the array hole processing of the lenses 2, further improve the processing precision of the lenses 2, and meet the wall thickness precision requirements of each channel on the lenses 2, and control the actual processing error range to be within 0.01 mm.
[0033] It should be noted that the QV image instrument used in the application is preferably a type with a precision error range of ±2um.
[0034] With reference to Figure 1 and Figure 2 Figure 1 Figure 2 , the flatness and parallelism of the mounting substrate 1 are required to be within 0.003mm, so as to further improve the processing precision of the finished lenses 2 and improve the quality of the finished lenses 2.
[0035] The implementation principle of the tool for processing the aspherical lens array in the embodiment of the application is:
[0036] By high standard requirements for the parallelism and flatness of the tool, the position precision, wall thickness and coaxiality error of the workpiece are accurately controlled during superfinishing. At the same time, the design of the plurality of ear holes 12 and the limiting screw holes makes the processing operation of the lenses 2 more streamlined and convenient, and the tool has higher economic practicality.
[0037] The above are preferred embodiments of the application, which do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape, principle of the application shall be covered within the protection scope of the application.
Claims
1. A tool for processing an aspheric lens array, used to fix the lens body during aspheric lens surface processing, characterized by: The application relates to a mounting base plate (1) and a lens (2) mounted in the middle of the mounting base plate (1), wherein a mounting hole (11) is formed in the middle of the mounting base plate (1), the lens (2) is embedded in the mounting hole (11), and two arc grooves (13) are symmetrically formed in the opposite sides of the mounting base plate (1), and the axes of the two arc grooves (13) coincide with the axis of the mounting hole (11).
2. The tooling for processing an aspherical lens array according to claim 1, wherein: A plurality of ear holes (12) are formed in the mounting base plate (1) along the circumference of the mounting hole (11), the ear holes (12) are equally spaced and communicate with the mounting hole (11).
3. The tooling for processing an aspherical lens array according to claim 1, wherein: The mounting base plate (1) and the lens (2) are in clearance fit, and the connection between the lens (2) and the mounting base plate (1) is low-temperature adhesive connection.
4. The tooling for processing an aspherical lens array according to claim 1, wherein: The mounting base plate (1) is connected with a high-precision QV image instrument for measuring the machining allowance of the front and back surfaces of the lens (2), and the precision error range of the QV image instrument is + / -2um.
5. The tooling for processing an aspherical lens array according to claim 1, wherein: The flatness and parallelism of the mounting base plate (1) are required to be within 0.003mm.
6. The tooling for processing an aspherical lens array according to claim 1, wherein: The four corners of the mounting base plate (1) are provided with chamfers.