Camera cover plate assembly jig for smart glasses

Abstract

The utility model relates to intelligent glasses production equipment technical field discloses a kind of camera cover plate assembly jigs for intelligent glasses, including carrier plate, support table, the positioning platform of the infrared camera module of positioning transparent cover plate to be pasted, pressure-keeping component, pressure-keeping component includes the profiling block and pressing bar of pressing transparent cover plate, positioning platform includes with carrier plate adhering adsorption magnetic attraction seat, with the positioning block of magnetic attraction seat positioning adsorption, and pressing block, positioning block is provided with substrate positioning groove, pressing block is opposite substrate positioning groove and is provided with profiling assembly hole, the jig is mainly through positioning block to infrared camera module substrate Implementation accurate secondary positioning, again cooperate the profiling assembly hole of the pressing block design, the boss surface of the upper end of infrared camera module substrate is designed accurate guide groove, transparent cover plate is conveniently placed and pasted, again combine pressure-keeping component and press pressure-keeping, until glue adhering stable, guarantee the assembly accuracy between transparent cover plate and infrared camera module in maintaining during rapid assembly production, improve product pass rate.

Description

Technical Field

[0001] This utility model relates to the technical field of smart glasses production equipment, specifically to a jig for assembling camera cover plates for smart glasses. Background Technology

[0002] Smart glasses, as an emerging electronic product, have entered the consumer market. With the addition of MR and AR virtual reality technologies, smart glasses are no longer limited to listening to music, making voice calls, and simultaneous interpretation. They can now integrate visual screens into the lenses and achieve visual imaging with good resolution using optical waveguide technology. Similarly, camera modules are also integrated into the frames of smart glasses, firstly to capture the scene in front of them, and secondly to capture eye movements for eye tracking, so as to achieve a visual effect of synchronously following the screen image. Therefore, designing components such as infrared camera modules at the nose pads of smart glasses is gradually becoming the mainstream direction of smart glasses development.

[0003] A smart glasses product requires a transparent cover plate to be installed on the infrared camera module at the nose pad position. When the flexible circuit board built into the glasses frame is in a flat state, the transparent cover plate needs to be glued and assembled with the infrared camera module that is attached to the nose pad position of the flexible circuit board. In order to meet the needs of mass production and high efficiency, a special transparent cover plate mounting fixture needs to be designed to ensure the assembly position accuracy between the transparent cover plate and the infrared camera module during rapid assembly production, thereby improving the product installation qualification rate. Utility Model Content

[0004] The purpose of this invention is to enable efficient and accurate bonding and assembly of the infrared camera module and the transparent cover plate of smart glasses with high positional precision after gluing, ensuring the assembly positional accuracy between the transparent cover plate and the infrared camera module during rapid assembly production, and improving the product installation qualification rate.

[0005] The technical solution adopted to solve the above problems is:

[0006] A fixture for assembling camera cover plates for smart glasses is proposed, including...

[0007] Carrier plate, which is used to support and position the fixture body;

[0008] A support platform, used to support flexible circuit boards other than infrared camera modules;

[0009] A positioning platform for positioning an infrared camera module to be pasted with a transparent cover plate, the positioning platform being provided with a pressing block for pressing the substrate of the infrared camera module;

[0010] A pressure-holding assembly, comprising a contour block for pressing a transparent cover and a pressing rod held manually or robotically connected to the contour block.

[0011] The upper surface of the support platform is provided with a pre-limiting block according to the outer periphery of the flexible circuit board to be supported. The pre-limiting block initially positions the flexible circuit board, reducing the positional error between the infrared camera module attached to the nose pad and the positioning platform. Then, the positional error between the infrared camera module and the positioning platform is manually corrected a second time.

[0012] The positioning platform includes a magnetic base that adheres to and adsorbs with the carrier plate, a positioning block that is positioned and adsorbed with the magnetic base, and a pressing block that works with the positioning block to press the infrared camera module substrate. The positioning block has a substrate positioning groove facing the position of the infrared camera module substrate, in which the infrared camera module substrate to be assembled with the transparent cover is nested to ensure assembly position accuracy. The pressing block has a contoured assembly hole facing the substrate positioning groove. The bottom horizontal cross-sectional contour of the contoured assembly hole is the same as the outer periphery contour of the transparent cover to be assembled, and the contoured assembly hole and the transparent cover are fitted with a clearance fit.

[0013] Furthermore, a contouring pressure head is provided at the lower end of the contouring block. The horizontal cross-sectional profile of the contouring pressure head is the same as the outer peripheral profile of the transparent cover plate to be assembled. The contouring pressure head presses against the contouring assembly hole of the positioning block to press the transparent cover plate attached to the infrared camera module substrate tightly.

[0014] Furthermore, the bottom surface of the magnetic base is provided with several permanent magnets, which are magnetically locked with the carrier plate made of magnetic conductive material. This facilitates the adjustment of the fitting accuracy of the positioning block for different models of flexible circuit boards. The upper surface of the magnetic base is provided with a base positioning pin that mates with the positioning hole on the bottom surface of the positioning block, and a base permanent magnet that mates with the permanent magnet on the bottom surface of the positioning block, thereby realizing the positioning and locking of the positioning block.

[0015] Furthermore, a clearance groove for the infrared camera module is provided below the positioning groove of the substrate, and a protective pad is provided inside the clearance groove to protect the structure of the infrared camera, infrared LED, and camera circuit board of the infrared camera module from damage.

[0016] Furthermore, the inner surface of the contoured assembly hole is a sloping surface that is wider at the top and narrower at the bottom, which facilitates the precise placement of the transparent cover plate onto the boss surface of the infrared camera module substrate to be assembled.

[0017] Furthermore, an antistatic silicone layer is provided on the contact surface between the contoured pressure head and the transparent cover plate.

[0018] Furthermore, a double-headed guide rod for positioning the pressure block and the positioning block is fitted together. The upper end of the double-headed guide rod is connected to the pressure block by screws, and the lower end is fitted with a return spring and then connected by flange screws. Within the elastic extension and contraction stroke of the return spring, the pressure block and the positioning block are connected and fitted with an adjustable gap.

[0019] Furthermore, a number of positioning pins are provided at the positions of the positioning holes provided on the upper end face of the positioning block and the lower end face of the pressure block.

[0020] Furthermore, several of the aforementioned pressure block positioning pins are arranged symmetrically around the double-headed guide rod as an axis, which facilitates the pressure block to adjust its connection posture by rotating 180 degrees in the positioning block.

[0021] The beneficial effects of this utility model are:

[0022] The smart glasses camera cover assembly fixture maintains the structural stability of the flexible circuit board through a support platform. It mainly uses positioning blocks to perform precise secondary positioning of the infrared camera module substrate, and then uses the contoured assembly holes designed by the pressure block to design precise guide grooves on the upper boss surface of the infrared camera module substrate to facilitate the placement and attachment of the transparent cover. Then, it combines the pressure holding component to press and hold pressure until the glue is stable, ensuring that the assembly position accuracy between the transparent cover and the infrared camera module is maintained during rapid assembly production, thereby improving the product installation qualification rate. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the assembly fixture for the camera cover plate of the smart glasses in this embodiment;

[0024] Figure 2 This is a top view of the camera cover assembly fixture for the smart glasses in this embodiment;

[0025] Figure 3 This is a side top view of the positioning platform described in this embodiment;

[0026] Figure 4 This is a schematic diagram showing the state of the contour block and the transparent cover plate being pressed together as described in this embodiment;

[0027] Figure 5 This is a schematic diagram of the positioning block in this embodiment;

[0028] Figure 6 This is a cross-sectional view showing the mating of the pressure block and the positioning block as described in this embodiment;

[0029] Figure 7 This is a front view of the positioning platform and the contour block mating as described in this embodiment;

[0030] Figure 8 for Figure 7 Sectional view of section AA;

[0031] Figure 9 for Figure 8 A magnified view of a section at point B in the middle;

[0032] The components are: 1-carrier plate, 2-support platform, 201-pre-limiting block, 3-flexible circuit board, 301-substrate, 302-camera, 303-infrared LED light, 4-pressure holding assembly, 401-contouring block, 4011-contouring pressure head, 402-silicone layer, 5-left positioning platform, 501-left magnetic seat, 502-left positioning block, 503-left pressure block positioning pin, 504-left bidirectional guide rod, 6-right positioning platform, 601-right... Side magnetic base, 602-right side positioning block, 6021-double-headed guide rod assembly hole, 6022-bottom end face positioning hole, 6023-bottom end face permanent magnet, 6024-right side pressure block positioning pin, 6025-substrate positioning groove, 603-right side pressure block, 6031-slope surface, 6032-contour assembly hole, 604-protective pad, 605-double-headed guide rod, 606-pressure block positioning pin, 607-reset spring, 608-flange screw, 7-transparent cover plate. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not the entire structure.

[0034] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0037] Please see Figure 1 This embodiment proposes a camera cover assembly fixture for smart glasses, including a carrier plate 1 for supporting and positioning the fixture body, a support platform 2 for supporting the flexible circuit board 3 other than the infrared camera module, and a positioning platform for positioning the infrared camera module to be pasted with a transparent cover 7. The positioning platform includes a left positioning platform 5 and a right positioning platform 6 with symmetrical structure and the same principle, both of which are provided with pressure blocks to press the infrared camera module substrate 301.

[0038] For a further description of the technical solution in this embodiment, please refer to... Figure 1 It also includes a pressure holding component 4, which includes a contour block 401 for pressing the transparent cover plate 7 and a pressing rod connected to the contour block 401. After the contour block 401 and the pressing rod are integrally connected, the transparent cover plate 7 mounted on the infrared camera module substrate 301 is pressed by manual or robotic force, and the adhesive is allowed to cure before the pressure holding component 4 is removed.

[0039] See Figure 1 and Figure 2 The upper surface of the support platform 2 is provided with a pre-limiting block 201 according to the outer periphery of the flexible circuit board 3 to be supported. The pre-limiting block 201 initially positions the flexible circuit board 3, reducing the positional error between the infrared camera module attached to the nose pad and the positioning platform. Then, the positional error between the infrared camera module and the positioning platform is corrected manually.

[0040] For a further description of the technical solution in this embodiment, please refer to... Figure 3 and Figure 4 The left positioning platform 5 includes a left magnetic base 501 that adheres to and is attracted to the carrier plate 1, a left positioning block 502 that is positioned and attracted to the left magnetic base 501, and a left pressing block that works with the left positioning block 502 to press the left infrared camera module substrate 301. The left positioning block 502 is provided with a left substrate positioning groove 6025 facing the left infrared camera module substrate 301. (See reference...) Figure 5 The right substrate positioning groove 6025 and the left substrate positioning groove 6025 are used to nest the infrared camera module substrate 301 of the transparent cover plate 7 to be assembled, so as to ensure the assembly position accuracy.

[0041] For a further description of the technical solution in this embodiment, please refer to... Figure 3 and Figure 9 The right-side pressure block 603 is provided with a contoured assembly hole 6032 directly opposite the right-side substrate positioning groove 6025. The bottom horizontal cross-sectional profile of the contoured assembly hole 6032 is the same as the outer peripheral profile of the transparent cover plate 7 to be assembled, and the contoured assembly hole 6032 and the transparent cover plate 7 are fitted with a clearance. It is preferable that the clearance is less than 0.1mm to ensure sufficient assembly accuracy and facilitate the insertion of the transparent cover plate 7. If necessary, a contoured block 401 can be used to assist in pressing.

[0042] For a further description of the technical solution in this embodiment, please refer to... Figure 4 A contouring pressure head 4011 is provided at the lower end of the contouring block 401, facing the attached transparent cover plate 7. The horizontal cross-sectional profile of the contouring pressure head 4011 is the same as the outer peripheral profile of the transparent cover plate 7 to be assembled. When a person or a robot holds the pressing rod, the contouring pressure head 4011 is controlled to press against the contouring assembly hole 6032 of the positioning block to press the transparent cover plate 7 attached to the infrared camera module substrate 301 tightly.

[0043] It should be noted that, depending on the model of the infrared camera module substrate 301 to be assembled with the transparent cover plate 7, a special model of contour block 401 can be designed, and a special contour pressing head 4011 can be designed. If it is the same contour as the boss surface on the upper end of the infrared camera module substrate 301, it can be shared.

[0044] As a further description of the technical solution of this embodiment, the bottom surface of the magnetic base is provided with several permanent magnets, which are magnetically locked with the carrier plate 1 made of magnetic conductive material. This facilitates the adjustment of the fitting accuracy of the positioning block for different models of flexible circuit boards 3. The position of the magnetic base and the carrier plate 1 needs to be manually adjusted.

[0045] It is particularly important to note that the support platform 2 only serves to support the flexible circuit board 3 and does not play a role in precise positioning. The infrared camera module substrate 301 is precisely positioned only by the positioning blocks of the positioning platform. That is, this fixture is a fixture with the positioning groove of the substrate 301 designed with positioning blocks on the left and right sides as the positioning reference.

[0046] See Figure 4 , Figure 5 and Figure 6 The upper surface of the magnetic base is provided with a base positioning pin that mates with the positioning hole 6022 on the bottom surface of the positioning block, and a base permanent magnet that mates with the permanent magnet 6023 on the bottom surface of the positioning block, so as to realize the positioning and locking of the positioning block, and also facilitate the quick installation and removal of the positioning block.

[0047] For a further description of the technical solution in this embodiment, please refer to... Figure 5Below the positioning groove of the substrate 301, there is a clearance groove for the infrared camera module. A protective pad 604 is provided in the clearance groove. The protective pad 604 is preferably made of sponge material to protect the structure of the infrared camera 302, infrared LED 303 and camera circuit board of the infrared camera module from damage.

[0048] To facilitate precise assembly of the transparent cover 7, please refer to... Figure 3 and Figure 9 The inner surface of the contoured assembly hole 6032 is a slope 6031 that is wider at the top and narrower at the bottom. The upper end face has a large opening and the lower end face is precisely positioned, which makes it easy for the transparent cover plate 7 to be accurately placed on the boss surface of the infrared camera module substrate 301 to be assembled.

[0049] It should be noted that the infrared camera module substrate 301 has a camera 302 and an infrared LED 303 mounted on its raised surface. The infrared light illuminates the user's pupils, and the reflected infrared light is received by the camera 302, enabling the smart glasses to synchronously follow the image inside the lens.

[0050] For a further description of the technical solution in this embodiment, please refer to... Figure 9 The contact surface between the contoured pressure head 4011 and the transparent cover plate 7 is provided with an antistatic silicone layer 402, which can reduce hard impact wear from direct contact and prevent frictional static interference.

[0051] See Figure 6 A double-headed guide rod 605 for positioning the right pressure block 603 and the right positioning block 602 is sleeved between them. The upper end of the double-headed guide rod 605 is connected to the right pressure block 603 by screws, and the lower end is sleeved with a return spring 607 and connected by flange screws 608. Within the elastic extension and contraction stroke of the return spring 607, the right pressure block 603 and the right positioning block 602 are connected and engaged with an adjustable gap, and the right pressure block 603 can rotate freely after disengaging from the right positioning block 602.

[0052] Further implementation plans are as follows, see [link / reference] Figure 6 Two pressure block positioning pins 606 are provided at the two positioning holes on the upper end face of the right positioning block 602, which are directly opposite the lower end face of the right pressure block 603. The two pressure block positioning pins 606 are arranged symmetrically around the double-headed guide rod 605, which facilitates the right pressure block 603 to be rotated 180 degrees on the right positioning block 602 to adjust the connection posture and adjust the assembly and opening state between the contour assembly hole 6032 of the right pressure block 603 and the substrate positioning groove 6025 of the right positioning block 602.

[0053] It should be noted that all components of this fixture that come into direct contact with the flexible circuit board 3, the infrared camera module, the substrate 301, and the transparent cover plate 7 are made of anti-static hard silicone to prevent scratches on the outer surface of the components and to prevent electrostatic interference.

[0054] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. For those skilled in the art, various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A fixture for assembling camera cover plates for smart glasses, including... Carrier plate (1), the carrier plate (1) is used to support and position the fixture body; Support platform (2), the support platform (2) is used to support flexible circuit boards (3) other than infrared camera modules, characterized in that: Also includes A positioning platform for positioning the infrared camera module to be pasted with a transparent cover plate (7), the positioning platform being provided with a pressing block for pressing the base plate (301) of the infrared camera module; The pressure holding assembly (4) includes a contour block (401) that presses the transparent cover plate (7) and a manual or robotically held pressing rod that connects the contour block (401).

2. The camera cover assembly fixture for smart glasses according to claim 1, characterized in that: The upper surface of the support platform (2) is provided with a pre-limiting block (201) according to the outer periphery of the flexible circuit board (3) to be supported, and the flexible circuit board (3) is initially positioned by the pre-limiting block (201).

3. The camera cover assembly fixture for smart glasses according to claim 1, characterized in that: The positioning platform includes a magnetic base that adheres to the carrier plate (1), a positioning block that is positioned and adsorbed by the magnetic base, and a pressing block that works with the positioning block to press the infrared camera module substrate (301). The positioning block is provided with a substrate positioning groove (6025) facing the infrared camera module substrate (301). The pressing block is provided with a contoured assembly hole (6032) facing the substrate positioning groove (6025). The bottom horizontal cross-sectional profile of the contoured assembly hole (6032) is the same as the outer peripheral profile of the transparent cover plate (7) to be assembled, and the contoured assembly hole (6032) and the transparent cover plate (7) are fitted with a clearance.

4. The camera cover assembly fixture for smart glasses according to claim 1, characterized in that: The lower end of the contour block (401) is provided with a contour pressing head (4011). The horizontal cross-sectional profile of the contour pressing head (4011) is the same as the outer peripheral profile of the transparent cover plate (7) to be assembled. The contour pressing head (4011) presses against the contour assembly hole (6032) of the positioning block to press the transparent cover plate (7) attached to the infrared camera module substrate (301) tightly.

5. The camera cover assembly fixture for smart glasses according to claim 3, characterized in that: The bottom surface of the magnetic base is provided with several permanent magnets, which are magnetically locked to the carrier plate (1) made of magnetic conductive material. The upper surface of the magnetic base is provided with a base positioning pin that cooperates with the positioning hole (6022) on the bottom surface of the positioning block, and a base permanent magnet that cooperates with the permanent magnet (6023) on the bottom surface of the positioning block.

6. The camera cover assembly fixture for smart glasses according to claim 3, characterized in that: Below the substrate positioning groove (6025) is a clearance groove for the infrared camera module, and a protective pad (604) is provided inside the clearance groove.

7. The camera cover assembly fixture for smart glasses according to claim 3, characterized in that: The inner surface of the contour assembly hole (6032) is a slope (6031) that is wider at the top and narrower at the bottom.

8. The camera cover assembly fixture for smart glasses according to claim 4, characterized in that: The contact surface between the contoured pressure head (4011) and the transparent cover plate (7) is provided with an antistatic silicone layer (402).

9. The camera cover assembly fixture for smart glasses according to claim 1, characterized in that: A double-headed guide rod for positioning the pressure block and the positioning block is fitted together. The upper end of the double-headed guide rod is connected to the pressure block by screws, and the lower end is fitted with a return spring (607) and connected by flange screws (608).

10. The camera cover assembly fixture for smart glasses according to claim 3, characterized in that: Several positioning pins are provided at the positions of several positioning holes on the upper end face of the positioning block, which are directly opposite the lower end face of the pressure block.

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