Optical glass element splitting jig

Abstract

The utility model discloses an optical glass element splitting jig which comprises an upper die assembly and a lower die assembly which can move up and down relatively, the lower die assembly comprises a lower die plate, a positioning groove used for placing an optical glass element to be split is formed in the lower die plate, a plurality of supporting ribs are arranged in the positioning groove, and the supporting ribs are connected with the upper die assembly and the lower die assembly. The supporting ribs divide the positioning groove into a plurality of bearing cavities used for containing the split single optical glass elements. The upper die assembly comprises an upper die plate, a plate connecting punch is arranged on the upper die plate, and a plurality of pressing ribs corresponding to the supporting ribs in position are arranged on the plate connecting punch. The upper die handle is held by a hand to slightly press the connected-plate optical coated glass middle piece located on the lower die downwards along the guide hole, the connected-plate optical coated glass middle piece is separated along the microcracks after laser cutting by utilizing the direct acting force of the pressing rib and the supporting rib, and the separated single optical glass falls into the bearing cavity.

Description

Technical Field

[0001] The utility model relates to an optical glass element splinter jig, belonging to the technical field of optical glass processing equipment. Background Art

[0002] Glass products, especially glass components used in the 3C industry and industrial control industry, are mostly cut by laser and separated from the final product through a splitting process.

[0003] The choice of splitting method depends on the type of laser cutting process and whether other processes are required before splitting, such as tempering, coating, and cleaning of the glass sheet. These processes require a certain degree of connection strength between the glass sheets after laser cutting, and the microcracks caused by laser cutting must be properly controlled, which places high demands on the splitting process.

[0004] Existing carbon dioxide laser thermal stress cracking methods have poor cracking effects due to the presence of the film layer and damage the film layer. Existing mechanical stress cracking methods have defects such as micro-cracks, broken edges or broken corners due to problems in the fixture design. For example, Chinese patent CN202320154006.9 solves the drop buffering problem after linear cracking, but it cannot be used for cracking continuous glass. For example, Chinese patent CN202121498449.7 uses a method of setting a height difference between the pressure plate pressure heads to crack continuous glass, but the pressure head contact surface is a flat layout. The force applied to the center of the glass product is not as vertically uniform as the force applied to the edge. The lack of a guiding function also causes the force point of each group of products to be offset.

[0005] In order to solve the above problems, this paper proposes an optical glass cracking fixture. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide an optical glass element cracking jig, which can separate the optical glass element product and the scrap by holding the handle of the upper mold and gently pressing the middle piece of the continuous optical coated glass located on the lower mold downward along the guide hole, so as to minimize the adverse factors that affect the strength of the glass, such as micro-cracks, chipped edges or chipped corners on the edges of the separated glass.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] An optical glass element cracking jig comprises an upper mold assembly and a lower mold assembly that can move up and down relative to each other, wherein the lower mold assembly comprises a lower mold plate, the lower mold plate is provided with a positioning groove for placing the optical glass element to be cracked, and a plurality of supporting ribs are provided in the positioning groove, and the supporting ribs divide the positioning groove into a plurality of receiving cavities for accommodating individual optical glass elements after cracking; the upper mold assembly comprises an upper mold plate, the upper mold plate is provided with a connecting punch, and the connecting punch is provided with a plurality of downward pressure ribs corresponding to the positions of the supporting ribs.

[0009] The aforementioned optical glass element cracking jig is characterized in that an exhaust hole is provided at the bottom of the receiving cavity.

[0010] The aforementioned optical glass element cracking jig is characterized in that: guide holes are provided at the four corners of the upper template, the lower template and the guide holes of the upper template are movably connected through guide shafts and sleeves, and positioning holes are provided at the two side edges of the continuous plate punch, and the lower template is provided with positioning pins that can be inserted into the positioning holes.

[0011] The aforementioned optical glass element cracking jig is characterized in that: the lower template is also provided with a limit block with adjustable upper and lower heights.

[0012] The aforementioned optical glass element cracking jig is characterized in that the receiving cavity is square, circular or other geometric shapes.

[0013] The aforementioned optical glass element cracking jig is characterized in that: the four corners of the positioning groove are all provided with arc-shaped chamfers, and the four corners of the receiving cavity are also provided with arc-shaped chamfers.

[0014] The aforementioned optical glass element cracking jig is characterized in that through grooves are provided on both side edges of the upper template to form pressing handles.

[0015] The aforementioned optical glass element cracking jig is characterized in that the edges of the supporting ribs and the pressing ribs are both chamfered.

[0016] The beneficial effect of the utility model is that by holding the handle of the upper mold and gently pressing the middle piece of the continuous optical coated glass located on the lower mold downward along the guide hole, the direct force of the downward pressing ribs and the supporting ribs is utilized to separate the middle piece of the continuous optical coated glass along the micro cracks after laser cutting, and the separated single piece of optical glass falls into the receiving chamber, thereby completing the separation of the optical glass component product and the scrap. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is a schematic structural diagram of a first embodiment of an optical glass element cracking jig according to the present invention;

[0018] Figure 2 This is a structural diagram of an upper mold assembly of a first embodiment of an optical glass element splinter jig according to the present invention;

[0019] Figure 3 This is a structural schematic diagram of a lower mold assembly of a first embodiment of an optical glass element splinter jig according to the present invention;

[0020] Figure 4 This is a structural schematic diagram of an upper mold assembly of a second embodiment of an optical glass element splinter jig according to the present invention;

[0021] Figure 5 This is a structural schematic diagram of a lower mold assembly of a second embodiment of an optical glass element splintering jig according to the present invention; DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings. Example 1

[0023] like Figure 1-Figure 3 As shown, an optical glass element cracking jig includes an upper mold assembly 1 and a lower mold assembly 2 that can move up and down relatively, wherein the lower mold assembly 2 includes a lower mold plate 21, and the lower mold plate 21 is provided with a positioning groove for placing the optical glass element to be cracked, and a plurality of supporting ribs 22 are provided in the positioning groove, and the supporting ribs 22 divide the positioning groove into a plurality of receiving cavities 23 for accommodating a single optical glass element after cracking; the upper mold assembly 1 includes an upper mold plate 11, and the upper mold plate 11 is provided with a continuous plate punch 12, and the continuous plate punch 12 is provided with a plurality of downward pressure ribs 13 corresponding to the positions of the support ribs 22.

[0024] The middle piece of the continuous optical coated glass to be split is placed in the positioning groove and supported by the supporting ribs 22. Then, the upper mold assembly 1 is controlled to be pressed down, and the downward pressing ribs 13 on the continuous punch 12 are used to press down on the micro-cracks of the middle piece of the continuous optical coated glass, so that the middle piece of the continuous optical coated glass is separated along the micro-cracks after laser cutting, and the separated single piece of optical glass falls into the receiving chamber, completing the separation of the optical glass component product and the scrap. The entire separation process is simple to operate, and can minimize the adverse factors that affect the strength of the glass, such as micro-cracks, chipped edges or chipped corners on the edges of the separated glass.

[0025] In this embodiment, guide holes 16 are provided at the four corners of the upper template 11. The lower template 21 is movably connected to the guide holes 16 of the upper template 11 via guide shafts 3 and sleeves 4. Positioning holes 14 are provided at the two side edges of the continuous plate punch 12. Positioning pins 6 that can be inserted into the positioning holes 14 are provided on the lower template 21. Through grooves 15 are provided at the two side edges of the upper template 11 to form pressing handles. By holding the upper mold handle and gently pressing downward along the guide holes 16, during the pressing process, the positioning pins 6 are inserted into the positioning holes 14 to ensure the accuracy of the downward pressing position of the downward pressing rib 13 on the continuous plate punch 12, thereby ensuring the effect of the splitting. The lower template 21 is also provided with a limit block 5 with adjustable upper and lower heights. According to the thickness of the middle piece of the continuous optical coated glass, the height of the upper template 11 can be controlled by adjusting the height of the limit block 5, further ensuring the pressure control during the splitting. In this embodiment, the limit block 5 is connected to the lower template 21 by a threaded connection, and its limit height can be adjusted by rotation.

[0026] The bottom of the receiving cavity 23 is provided with an exhaust hole 24 to facilitate the smooth drop of the single optical glass element into the receiving cavity 23 after being broken, so as to facilitate collection and storage, and effectively prevent it from being damaged.

[0027] The four corners of the positioning grooves and the receiving cavity 23 are all provided with circular chamfers, facilitating the placement and removal of intermediate sheets of optically coated glass from a continuous sheet and individual optical glass components. The edges of the support ribs 22 and the hold-down ribs 13 are chamfered to ensure a gradual increase in pressure during the cleaving process, facilitating smooth cleaving without damaging the product.

[0028] In this embodiment, the receiving chambers 23 provided on the lower template 21 are 16 in total in 4 rows and 4 columns, and are square in shape. Example 2

[0029] like Figure 4 and Figure 5 As shown, the difference from Example 1 is that the number of receiving chambers 23 provided on the lower template 21 is 5 rows and 5 columns, totaling 25, and the shape is circular. When in use, the upper mold is first removed, and the middle piece of glass to be processed is placed in the positioning groove of the lower mold. Due to the symmetry of the design, there is no need to distinguish the direction. Then, the upper mold is covered and gently pressed down. According to the weight design and guide limit design of the upper mold, the splitting action is completed immediately by pressing down, and the product separation is completed.

[0030] In summary, the utility model provides an optical glass element cracking jig, which separates the optical glass element product and the scrap by holding the upper mold handle and gently pressing the continuous optical coated glass middle piece located on the lower mold downward along the guide hole, so as to minimize the adverse factors affecting the strength of the glass, such as micro-cracks, chipped edges or chipped corners on the edges of the separated glass.

[0031] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. An optical glass element cracking jig, characterized by: It comprises an upper mold assembly (1) and a lower mold assembly (2) which can move up and down relatively, wherein: The lower mold assembly (2) comprises a lower mold plate (21), the lower mold plate (21) being provided with a positioning groove for placing an optical glass element to be split, a plurality of supporting ribs (22) being provided in the positioning groove, and the supporting ribs (22) dividing the positioning groove into a plurality of receiving cavities (23) for accommodating individual optical glass elements after splitting; The upper die assembly (1) comprises an upper die plate (11), a continuous die plate punch (12) is provided on the upper die plate punch (12), and a plurality of downward pressing ribs (13) corresponding to the positions of the supporting ribs (22) are provided on the continuous die plate punch (12).

2. The optical glass element cracking jig according to claim 1, characterized in that: An exhaust hole (24) is provided at the bottom of the receiving cavity (23).

3. An optical glass element cracking jig according to claim 1 or 2, characterized in that: Guide holes (16) are provided at the four corners of the upper template (11), and the lower template (21) is movably connected to the guide holes (16) of the upper template (11) via guide shafts (3) and shaft sleeves (4). Positioning holes (14) are provided at the edges of both sides of the continuous plate punch (12), and the lower template (21) is provided with positioning pins (6) that can be inserted into the positioning holes (14).

4. The optical glass element cracking jig according to claim 3, characterized in that: The lower template (21) is also provided with a limit block (5) that can adjust the upper and lower heights.

5. The optical glass element cracking jig according to claim 4, characterized in that: The receiving cavity (23) is square or circular.

6. The optical glass element cracking jig according to claim 1, characterized in that: The four corners of the positioning groove are all provided with arc-shaped guide angles, and the four corners of the receiving cavity (23) are all provided with arc-shaped guide angles.

7. The optical glass element cracking jig according to claim 1, characterized in that: Through slots (15) are provided at both side edges of the upper template (11) to form pressing handles.

8. The optical glass element cracking jig according to claim 1, characterized in that: The edges of the supporting ribs (22) and the pressing ribs (13) are both chamfered.

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