An optical element through-hole crack piece positioning device

Abstract

The utility model relates to an optical element through -hole crack piece positioning device, it includes: the upper fixture main part and lower fixture main part of opposite setting, be provided with the recess on the lower fixture main part, the part of the lower opposite recess of upper fixture main part is functional surface, be provided with a plurality of thimble on the functional surface, the four corners of lower fixture main part are provided with blind hole, and the gasket and lower support column are detachably fixed in blind hole, the four corners of upper fixture main part are provided with upper support column, and each upper support column is inserted with a lower support column and constitutes the closed accommodation cavity, and is provided with support spring in accommodation cavity. The present application passes through detachable gasket design, and the elastic adjustment of combination support spring has realized the flexible adjustment of thimble effective propulsion distance, has improved processing efficiency and product yield ratio significantly, and can adapt to the processing demand of different working conditions.

Description

Technical Field

[0001] This utility model relates to the field of optical element assembly equipment, specifically to an optical element through-hole slit positioning device. Background Technology

[0002] The current manufacturing process for optical components involves laser cutting, etching, and through-hole dicing. Waste glass at the through-holes is manually diced using a pin pen, with the product laid flat and manually diced vertically. This method has limitations: insufficient efficiency, processing only a small piece from a single sheet at a time, difficulty in manually positioning the dicing glass with through-holes, inconsistent force application, a high percentage of chipped or damaged edges, and overall low efficiency. With increased automation, through-hole dicing equipment using pins to automatically eject components has emerged. However, precise control of the pin's advance distance is crucial for ensuring dicing quality in optical component through-hole dicing equipment. In existing technology, the pin height is fixed, making it difficult to adapt to processing products of varying thicknesses, leading to the following problems: Thin products (such as 0.3mm glass) are prone to breakage if the ejector pin is pushed too deep. Thick products (such as 1.5mm sapphire) may have incomplete cleavage due to insufficient push of the ejector pin; The thrust is not adjustable, and hard and brittle materials are prone to chipping or micro-cracks. Utility Model Content

[0003] One of the main objectives of this invention is to overcome at least one of the aforementioned defects and to provide an optical element through-hole slit positioning device. Through a detachable pad design combined with the elastic adjustment of the support spring, the effective advancing distance of the ejector pin can be flexibly adjusted, thus solving the aforementioned technical problems.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a positioning device for a through-hole slit of an optical element, comprising: The upper fixture body and the lower fixture body are arranged opposite each other. The lower fixture body is provided with a groove, and the part of the upper fixture body directly opposite the groove is a functional surface. A number of ejector pins are provided on the functional surface. Blind holes are provided at the four corners of the lower fixture body, and a gasket and a lower support column are detachably fixed in the blind holes; The upper fixture body has upper support columns at its four corners. Each upper support column is inserted into a lower support column to form a closed accommodating cavity. A support spring is installed inside the accommodating cavity.

[0005] According to one embodiment of the present invention, there is at least one gasket in each blind hole of the lower fixture body, and the number of gaskets in each blind hole is equal.

[0006] According to one embodiment of the present invention, each blind hole is provided with a screw hole, and the gasket is provided with a through hole or a screw hole, and the gasket is fixed in the blind hole by a screw.

[0007] According to one embodiment of the present invention, the lower support column is a column with an open top, the upper support column is a column with an open bottom, the upper support column and the lower support column are fitted with a clearance, and the support spring is located between the lower bottom surface of the lower support column and the upper bottom surface of the upper support column.

[0008] According to one embodiment of the present invention, a screw hole is provided on the bottom surface of the lower support column, and a screw hole is provided in each blind hole, so that the lower support column is fixed in the blind hole by screws.

[0009] According to one embodiment of the present invention, the upper support column is fixed to the upper fixture body by welding or by screw connection.

[0010] According to one embodiment of the present invention, the surfaces of the upper fixture body and the lower fixture body are coated with a scratch-resistant Teflon coating.

[0011] According to one embodiment of the present invention, the ejector pin is a metal ejector pin.

[0012] Compared with the prior art, the advantages and beneficial effects of the optical element through-hole slit positioning device of this utility model patent application are as follows: The optical element through-hole slit positioning device of this application, through structural optimization, adopts a detachable shim design. By adjusting the number of shims in the blind hole of the lower fixture body (at least one shim, with an equal number at each of the four corners), the step-wise adjustment of the ejector pin advance distance is achieved. The support spring provides buffering force, achieving elastic support and avoiding product damage caused by hard contact. In addition, a Teflon coating is applied to the surface of the fixture as a scratch-resistant coating to further prevent scratches on the surface of the optical element.

[0013] This application achieves flexible adjustment of the ejector pin advance distance (range 0.1-0.5mm) and precise control of the ejector force (1.5-3.0N) by combining a detachable shim with an elastic support structure. It is suitable for the dicing process of optical components made of hard and brittle materials (such as glass, sapphire, and quartz) with a thickness of 0.3-1.5mm. Experimental data shows that the chipping width is <5.5μm and the dicing success rate is >95%, which significantly improves processing efficiency and product yield. Attached Figure Description

[0014] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the optical element through-hole split positioning device in the mold-closed state according to an embodiment of the present invention; Figure 2 This is a structural schematic diagram of the upper fixture body, the lower fixture body, and the surrounding components according to one embodiment of the present utility model; Figure 3 This is a cross-sectional structural diagram of a blind hole inner gasket and elastic support structure according to one embodiment of the present invention.

[0015] The annotations in the attached figures are explained as follows: 1. Upper fixture body; 11. Functional surface; 12. Ejector pin; 2. Lower fixture body, 21. Groove, 22. Blind hole; 3. Gaskets; 41. Upper support column; 42. Lower support column; 43. Support spring; 5. Screws. Detailed Implementation

[0016] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0018] This embodiment describes a device for positioning a through-hole slit in an optical element, such as... Figure 1 and Figure 2 As shown, it includes: The upper fixture body 1 and the lower fixture body 2 are arranged opposite to each other. The lower fixture body 2 is provided with a groove 21. During the splitting process, the whole product to be split is placed in the groove 21. The edge of the groove 21 has a protrusion that can support the product. The middle part of the groove 21 is preferably hollow to facilitate the ejection of the product and then discharge. The part of the upper fixture body 1 directly opposite the groove 21 is a functional surface 11. The functional surface 11 is provided with a plurality of ejector pins 12. The ejector pins 12 are metal ejector pins 12. The position of each ejector pin 12 is directly opposite each pre-cut small piece of product on the product. Blind holes 22 are provided at the four corners of the lower fixture body 2. A gasket 3 and a lower support column 42 are detachably fixed in the blind holes 22. There is at least one gasket 3 in each blind hole 22 of the lower fixture body 2, and the number of gaskets 3 in each blind hole 22 is equal to ensure that the components are relatively horizontal during the processing. The upper fixture body 1 is provided with upper support columns 41 at its four corners. Each upper support column 41 is inserted into a lower support column 42 to form a closed accommodating cavity. A support spring 43 is provided in the accommodating cavity.

[0019] As for fixing the gasket 3 and the lower support column 42, they can be glued (preferably a heat-melting and removable adhesive) or fixed with screws. Screw fixing is preferred as it is easy to disassemble.

[0020] like Figure 3 As shown, each blind hole 22 has a screw hole, and the gasket 3 has a through hole or screw hole. The gasket 3 is fixed in the blind hole 22 by screws 5. The lower support column 42 has a screw hole on its lower bottom surface, and each blind hole 22 has a screw hole. The lower support column 42 is fixed in the blind hole 22 by screws 5. The gasket 3 is located between the bottom of the blind hole 22 and the outer bottom surface of the lower support column 42. In addition, the upper support column 41 and the upper fixture body 1 can be fixed by welding or screw connection.

[0021] The lower support column 42 is a column with an open top, and the upper support column 41 is a column with an open bottom. The upper support column 41 and the lower support column 42 are fitted with a clearance. The support spring 43 is located between the lower bottom surface of the lower support column 42 and the upper bottom surface of the upper support column 41.

[0022] The surfaces of the upper fixture body 1 and the lower fixture body 2 are coated with a scratch-resistant Teflon coating. This Teflon coating further prevents scratches on the surfaces of the optical components.

[0023] The following examples, using products and fixtures of different sizes, demonstrate the advantages of this invention over traditional equipment through experimental examples.

[0024] Experiment Example 1: Adaptability Verification of Products with Different Thicknesses 1.1 Experimental objective: To verify the effect of the number of gaskets on the ejector pin advance distance and the quality of the ejector pin.

[0025] 1.2 Experimental conditions: Product material: Quartz glass (thickness 0.5mm / 1.0mm); Ejector pin diameter: 0.3mm, quantity: 4×4 array; Gasket thickness: 0.3mm / piece, up to 3 pieces can be stacked.

[0026] 1.3 Experimental Data: 1.4 Conclusion: By increasing or decreasing the number of shims, the ejector pin advance distance can be precisely adjusted to meet the requirements of splitting products of different thicknesses.

[0027] Experiment Example 2: Verification of Top Thrust Adjustment 2.1 Experimental objective: To verify the effect of the stiffness of the support spring on the jacking force.

[0028] 2.2 Experimental conditions: Product material: Quartz glass (0.8mm thick); Gasket thickness: 0.3mm / piece, stacked 2 pieces, total thickness is 0.6mm; Ejector pin diameter: 0.3mm, quantity: 4×4 array; Spring stiffness: 2N / mm and 3N / mm (comparative examples).

[0029] 2.3 Experimental Data: 2.4 Conclusion: The stiffness of the support spring is adjustable, further optimizing the range of the top thrust and adapting to the cleaving requirements of different materials (such as sapphire and glass).

[0030] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for positioning a through-hole slit in an optical element, characterized in that, include: The upper fixture body and the lower fixture body are arranged opposite each other. The lower fixture body is provided with a groove, and the part of the upper fixture body directly opposite the groove is a functional surface. A number of ejector pins are provided on the functional surface. Blind holes are provided at the four corners of the lower fixture body, and a gasket and a lower support column are detachably fixed in the blind holes; The upper fixture body has upper support columns at its four corners. Each upper support column is inserted into a lower support column to form a closed accommodating cavity. A support spring is installed inside the accommodating cavity.

2. The optical element through-hole slit positioning device according to claim 1, characterized in that, The lower fixture body has at least one gasket in each blind hole, and the number of gaskets in each blind hole is equal.

3. The optical element through-hole slit positioning device according to claim 1 or 2, characterized in that, Each blind hole is provided with a screw hole, and the gasket is provided with a through hole or a screw hole, and the gasket is fixed in the blind hole by a screw.

4. The optical element through-hole slit positioning device according to claim 1, characterized in that, The lower support column is a column with an open top, and the upper support column is a column with an open bottom. The upper support column and the lower support column are fitted with a clearance, and the support spring is located between the bottom surface of the lower support column and the top surface of the upper support column.

5. The optical element through-hole slit positioning device according to claim 4, characterized in that, The lower support column has screw holes on its bottom surface, and each blind hole has a screw hole inside it. The lower support column is fixed in the blind hole by screws.

6. The optical element through-hole slit positioning device according to claim 4, characterized in that, The upper support column is fixed to the upper fixture body by welding or by screw connection.

7. The optical element through-hole slit positioning device according to claim 1, characterized in that, The surfaces of the upper fixture body and the lower fixture body are coated with a scratch-resistant Teflon coating.

8. The optical element through-hole slit positioning device according to claim 1, characterized in that, The ejector pin is a metal ejector pin.

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