An aa test mechanism for optomechanical xr

Abstract

The application discloses an optical-mechanical XR AA test mechanism, which comprises an optical-mechanical test lighting mechanism, a transfer mechanism, a fixed transfer platform and a test rotating platform, the test rotating platform drives the optical-mechanical test lighting mechanism to rotate, and the fixed transfer platform drives the transfer mechanism to rotate; the optical-mechanical test lighting mechanism comprises a platform support, the platform support is provided with a supporting column, a second moving seat is slidably arranged on one side of the supporting column, the platform support is provided with a cylinder for driving the second moving seat to move up and down, a first moving seat is slidably arranged at the rear of the second moving seat, a guide wheel is arranged on one side of the first moving seat, the platform support is provided with a guide hole matched with the guide wheel, and the guide hole is arranged in an inclined mode; and one end of the supporting column is provided with a vacuum limiting jig. According to the application, the oblique alignment design replaces manual plug-in and plug-out of the wire, avoids the hard impact of the vertical alignment, and reduces the bending damage rate of the connector.

Description

Technical Field

[0001] This invention relates to the field of AA testing technology for optomechanical XR, specifically an AA testing mechanism for optomechanical XR. Background Technology

[0002] Extended Reality (XR) is a term used to describe a range of interactive technologies that include Virtual Reality (VR), Augmented Reality (AR), and Mixed Reality (MR).

[0003] Existing AA (Active Alignment) testing technology for optomechanical XR involves manual cable splicing, which carries the risk of bending during operation and suffers from low efficiency and instability. Furthermore, the lack of error-proofing makes production difficult and labor costs high. Therefore, we propose an AA testing mechanism for optomechanical XR. Summary of the Invention

[0004] The purpose of this invention is to provide an AA testing mechanism for optomechanical XR to solve the problems in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an AA testing mechanism for optomechanical XR, comprising an optomechanical testing illumination mechanism, a transfer mechanism, a fixed transfer platform, and a testing rotation platform, wherein the testing rotation platform drives the optomechanical testing illumination mechanism to rotate, and the fixed transfer platform drives the transfer mechanism to rotate;

[0006] The optomechanical test lighting mechanism includes a platform bracket, a support column is installed on the platform bracket, a second movable seat is slidably installed on one side of the support column, a cylinder is installed on the platform bracket to drive the second movable seat to rise and fall, a first movable seat is slidably installed on the rear of the second movable seat, a guide wheel is installed on one side of the first movable seat, and the platform bracket has a guide hole that cooperates with the guide wheel, the guide hole is inclined.

[0007] A vacuum limiting fixture is installed at one end of the support column, and a floating needle seat and a converter PCB board are installed on the first movable seat. Multiple spring probes are set inside the floating needle seat. The lifting or lowering of the cylinder can drive the floating needle seat to move away from or align with the vacuum limiting fixture at an angle.

[0008] Preferably, the support column and the second movable seat are connected by a second sliding assembly, and the second movable seat and the first movable seat are connected by a first sliding assembly. Both the first sliding assembly and the second sliding assembly are composed of linear guide rails and sliders.

[0009] Preferably, the transfer mechanism includes a clamping cylinder and a base. A module transfer mounting assembly is installed at the top of the base, and a clamping cylinder is installed at the bottom of the base. The clamping cylinder drives a first gripper and a second gripper. A flexible and rigid PCB board is installed on the second gripper. A pin seat cover is installed on the flexible and rigid PCB board. The module transfer mounting assembly is equipped with a pin seat corresponding to the pin seat cover. A probe that mates with the flexible and rigid PCB board is embedded in the pin seat.

[0010] Preferably, the module transfer installation assembly includes a support block and a side plate. The support block is equipped with a product pressing block via a pin, and a pre-pressing block is installed on the support block below the product pressing block via a pin.

[0011] Preferably, the test rotation platform includes a rotary motor, a fixed plate, and a rotating frame. The rotary motor is installed at the bottom of the fixed plate and drives the rotating frame to rotate. A sensor mounting plate is installed on one side of the rotating frame on the fixed plate. Two sensors are installed on the sensor mounting plate. Sensor plates corresponding to the two sensors are installed on both sides of the rotating frame.

[0012] Preferably, the rotating frame is an L-shaped frame, and the rotating frame is equipped with two adjustable limiting posts.

[0013] Preferably, the rotating frame has an insertion hole that mates with the output shaft of the rotating motor, the rotating frame has cutting grooves on both sides of the insertion hole, and a locking bolt for locking the output shaft is installed on one side of the rotating frame.

[0014] Preferably, the fixed transfer platform includes a hollow rotating platform and a base, wherein the hollow rotating platform drives the base to rotate.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The optomechanism to be tested is placed in the vacuum limiting fixture, where precise positioning is achieved through negative pressure adsorption, preventing displacement during testing. A cylinder is activated, driving the second moving seat to slide upwards along the second sliding component of the support column. Simultaneously, the guide wheel of the first moving seat moves along the inclined guide hole of the platform bracket, causing the first moving seat to slide horizontally along the first sliding component of the second moving seat, ultimately achieving precise oblique alignment of the floating pin holder relative to the vacuum limiting fixture. The spring probe inside the floating pin holder is fully conductive with the optomechanism interface and the adapter PCB board, transmitting test signals through the adapter PCB board to complete the illumination and basic performance testing of the optomechanism. After testing, the cylinder reverses its movement, causing the floating pin holder to move obliquely away from the optomechanism, avoiding hard contact damage. This oblique alignment design replaces manual cable insertion and removal, avoiding the hard impact of vertical alignment and reducing connector bending damage. The negative pressure fixing of the vacuum limiting fixture and the oblique alignment of the inclined guide hole make the optomechanism positioning error and probe contact deviation superior to manual operation.

[0017] 2. The rotating motor of the test platform starts, driving the rotating frame to rotate the optomechanical test illumination mechanism. During rotation, the sensor plates on both sides of the rotating frame cooperate with the sensors on the sensor mounting plate to provide real-time feedback on the rotation angle, precisely controlling the rotation to the AA test angle between the R / B (red / blue) optomechanical component and the semi-finished product bracket. Adjustable limit posts limit the extreme positions of the rotating frame to avoid excessive rotation. The rotating frame is connected to the motor output shaft through a socket, and the cutting grooves on both sides, combined with locking bolts, achieve flexible locking, ensuring no loosening or deviation during rotation. After the angle adjustment is completed, the optomechanical component and the semi-finished product bracket are precisely aligned, and the AA test is completed through an external optical inspection system to detect key indicators such as optomechanical imaging accuracy and optical path alignment. The sensor positioning and limit post assistance of the test rotating platform provide high angle adjustment accuracy, meeting the high angle requirements of XR optomechanical AA testing and avoiding test data distortion due to insufficient accuracy.

[0018] 3. The semi-finished optical engine bracket is placed into the module transfer and installation components. The product pressure block on the support block is pressed together by the rotation of the pin shaft to fix the bracket lens. At the same time, the pre-pressing block presses the long FPC to prevent signal interruption or FPC damage caused by shaking during subsequent operations. The pre-pressing block is dedicated to fixing the long FPC (flexible circuit board) to prevent breakage or solder joint detachment caused by FPC shaking during testing, thus reducing the FPC loss rate.

[0019] 4. The spring probe of the floating needle holder is made of wear-resistant alloy material and has a flexible conductive design, which improves service life and reduces the cost of consumable replacement and downtime.

[0020] 5. The flexible and rigid PCB boards and pin headers are detachable, supporting optomechanical testing of different signal interfaces. There is no need to replace the entire equipment, which improves the equipment reuse rate and reduces the investment cost of testing equipment for multiple product models. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure during the removal of the rotating platform in this invention.

[0024] Figure 3 This is a schematic diagram of the structure of the test rotation platform of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the rotating frame of the present invention;

[0026] Figure 5This is a schematic diagram of the structure of the optical machine test lighting mechanism, the transfer mechanism, and the fixed transfer platform of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of the optomechanical testing illumination mechanism of the present invention;

[0028] Figure 7 This is the present invention. Figure 6 A structural diagram from the rear view;

[0029] Figure 8 This is a schematic diagram of the structure of the optomechanical testing illumination mechanism of the present invention after it has been flipped.

[0030] Figure 9 This is a schematic diagram of the structure of the optomechanical testing illumination mechanism of the present invention;

[0031] Figure 10 This is a schematic diagram of the transfer mechanism of the present invention;

[0032] Figure 11 This is a schematic diagram of the structure of the transfer and installation component in the module of the present invention.

[0033] In the diagram: 1. Optomechanical testing illumination mechanism; 2. Transfer mechanism; 3. Fixed transfer platform; 4. Testing rotation platform; 101. Platform bracket; 102. Cylinder; 103. Support column; 104. Guide wheel; 105. Guide hole; 106. First moving seat; 107. First sliding assembly; 108. Second moving seat; 109. Second sliding assembly; 110. Vacuum limit fixture; 111. Floating pin seat; 112. Adapter PCB board; 201. Clamping cylinder; 202. Base; 203. ... 204. Gripper; 205. Module transfer mounting assembly; 206. Pin holder; 207. Pin holder cover; 208. Second gripper; 209. Flexible and rigid PCB board; 2001. Support block; 2002. Side plate; 2003. Probe; 20044. Product pressing block; 20045. Pre-pressing block; 401. Rotary motor; 402. Sensor mounting plate; 403. Fixing plate; 404. Sensor; 405. Sensing plate; 406. Rotating frame; 407. Limiting post; 408. Insertion hole; 409. Locking bolt. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0035] Please see Figure 1-11 In this embodiment of the invention, an AA test mechanism for optomechanical XR includes an optomechanical test lighting mechanism 1, a transfer mechanism 2, a fixed transfer platform 3, and a test rotation platform 4. The test rotation platform 4 drives the optomechanical test lighting mechanism 1 to rotate, and the fixed transfer platform 3 drives the transfer mechanism 2 to rotate.

[0036] The optomechanical testing illumination mechanism 1 includes a platform support 101, on which a support column 103 is mounted. A second movable seat 108 is slidably mounted up and down on one side of the support column 103. A cylinder 102 is mounted on the platform support 101 to drive the second movable seat 108 to rise and fall. A first movable seat 106 is slidably mounted on the rear of the second movable seat 108. A guide wheel 104 is mounted on one side of the first movable seat 106 located on the platform support 101. The platform support 101 has openings that cooperate with the guide wheel 104. Guide hole 105 is inclined; a vacuum limiting fixture 110 is installed at one end of the support column 103, which achieves precise positioning through negative pressure adsorption to avoid displacement during testing; the first moving seat 106 is equipped with a floating needle seat 111 and an adapter PCB board 112; multiple spring probes are provided in the floating needle seat 111, and the spring probes of the floating needle seat 111 are made of wear-resistant alloy material; the lifting or lowering of the cylinder 102 can drive the floating needle seat 111 to move away from or align with the vacuum limiting fixture 110 at an angle. When cylinder 102 is activated, it drives the second moving seat 108 to slide upward along the second sliding component 109 of the support column 103. At the same time, the guide wheel 104 of the first moving seat 106 moves along the inclined guide hole 105 of the platform bracket 101, causing the first moving seat 106 to slide horizontally along the first sliding component 107 of the second moving seat 108, ultimately achieving the oblique and precise alignment of the floating needle seat 111 relative to the vacuum limiting fixture 110. The spring probe in the floating needle seat 111 is fully connected to the optomechanical interface and the adapter PCB board 112, and the test signal is transmitted through the adapter PCB board 112 to complete the illumination of the optomechanical system and the basic performance test. After the test is completed, the cylinder reverses its action, and the floating needle seat 111 moves obliquely away from the optomechanical system to avoid hard contact damage.

[0037] The support column 103 and the second movable seat 108 are connected by a second sliding component 109, and the second movable seat 108 and the first movable seat 106 are connected by a first sliding component 107. Both the first sliding component 107 and the second sliding component 109 are composed of linear guide rails and sliders.

[0038] The transfer mechanism 2 includes a clamping cylinder 201 and a base 202. A module transfer mounting assembly 204 is installed at the top of the base 202, and a clamping cylinder 201 is installed at the bottom of the base 202. The clamping cylinder 201 drives a first gripper 203 and a second gripper 207. A flexible and rigid PCB board 208 is installed on the second gripper 207. A needle seat cover 206 is installed on the flexible and rigid PCB board 208. A needle seat 205 corresponding to the needle seat cover 206 is installed on the module transfer mounting assembly 204. A probe 2043 that mates with the flexible and rigid PCB board 208 is embedded in the needle seat 205. The hollow rotating platform of the fixed transfer platform 3 drives the base to rotate, adjusting the transfer mechanism 2 to a position that matches the optomechanical test lighting mechanism 1; the clamping cylinder 201 drives the first clamp 203 and the second clamp 207 to clamp together, so that the pin seat cover 206 of the flexible and rigid PCB board 208 on the second clamp 207 is in contact with the pin seat 205 of the module transfer mounting assembly 204, and the probe 2043 embedded in the pin seat 205 is connected to the flexible and rigid PCB board 208, realizing the transfer of optomechanical signals to the external test system.

[0039] The module transfer and installation assembly 204 includes a support block 2041 and a side plate 2042. The support block 2041 is equipped with a product pressing block 2044 via a pin. Below the product pressing block 2044, a pre-pressing block 2045 is installed on the support block 2041 via a pin. The optical engine semi-finished product bracket is placed into the module transfer and installation assembly 204. The product pressing block 2044 on the support block 2041 is rotated and pressed together via a pin to fix the bracket lens. At the same time, the pre-pressing block 2045 presses the long FPC to prevent signal interruption or FPC damage caused by shaking during subsequent operations.

[0040] The test rotation platform 4 includes a rotation motor 401, a fixed plate 403, and a rotating frame 406. The rotation motor 401 is mounted on the bottom of the fixed plate 403, and the rotation motor 401 drives the rotating frame 406 to rotate. A sensor mounting plate 402 is mounted on one side of the rotating frame 406 on the fixed plate 403, and two sensors 404 are mounted on the sensor mounting plate 402. Sensing plates 405 corresponding to the two sensors 404 are mounted on both sides of the rotating frame 406. When the rotation motor 401 of the test rotation platform 4 is started, it drives the rotating frame 406 to rotate the optical engine test lighting mechanism 1. During the rotation, the sensing plates 405 on both sides of the rotating frame 406 cooperate with the sensors 404 on the sensor mounting plate 402 to provide real-time feedback on the rotation angle and precisely control the rotation. The AA test angle of the R / B (red / blue) optical machine and the semi-finished product bracket; the rotating frame 406 is an L-shaped frame, the bottom of the rotating frame 406 is equipped with a clamping claw, and the rotating frame 406 is equipped with two adjustable limit posts 407; the rotating frame 406 has a socket 408 that mates with the output shaft of the rotating motor 401, the rotating frame 406 has cutting grooves on both sides of the socket 408, and a locking bolt 409 for locking the output shaft is installed on one side of the rotating frame 406; the adjustable limit posts 407 limit the extreme position of the rotating frame 406 to avoid excessive rotation; the rotating frame 406 mates with the motor output shaft of the rotating motor 401 through the socket 408, and the cutting grooves on both sides, together with the locking bolt 409, achieve flexible locking to ensure no loosening or deviation during rotation.

[0041] The fixed transfer platform 3 includes a hollow rotating platform and a base, and the hollow rotating platform drives the base to rotate.

[0042] The working principle of this invention is:

[0043] 1. Optomechanical positioning and illumination test

[0044] Optical mechanism fixation: The optical mechanism to be tested is placed in the vacuum limiting fixture 110, and precise positioning is achieved by negative pressure adsorption to avoid displacement during the test;

[0045] Automatic probe alignment and conduction: Cylinder 102 is activated, driving the second moving seat 108 to slide upward along the second sliding component 109 of the support column 103; at the same time, the guide wheel 104 of the first moving seat 106 moves along the inclined guide hole 105 of the platform bracket 101, driving the first moving seat 106 to slide horizontally along the first sliding component 107 of the second moving seat 108, ultimately achieving the oblique and precise alignment of the floating needle seat 111 relative to the vacuum limiting fixture 110;

[0046] Lighting-up test: The spring probe in the floating pin holder 111 is fully connected to the optomechanical interface and the adapter PCB board 112. The test signal is transmitted through the adapter PCB board to complete the lighting-up and basic performance testing of the optomechanical system. After the test is completed, the cylinder moves in the opposite direction, and the floating pin holder 111 moves away from the optomechanical system at an angle to avoid damage from hard contact.

[0047] 2. Fixing of the semi-finished optomechanical bracket and signal relay

[0048] Bracket Fixing: The semi-finished optical engine bracket is placed into the module transfer mounting component 204. The product pressing block 2044 on the support block 2041 is pressed by the pin shaft to fix the bracket lens. At the same time, the pre-pressing block 2045 presses the long FPC to prevent the signal from being interrupted or the FPC from being damaged during subsequent operations.

[0049] Signal relay connection: The hollow rotating platform of the fixed relay platform 3 drives the base to rotate, adjusting the relay mechanism 2 to a position that matches the optomechanical test lighting mechanism 1; the clamping cylinder 201 drives the first clamp 203 and the second clamp 207 to clamp together, so that the pin seat cover 206 of the flexible and rigid PCB board 208 on the second clamp 207 is in contact with the pin seat 205 of the module relay mounting assembly 204, and the probe 2043 embedded in the pin seat is connected to the flexible and rigid PCB board 208, realizing the relay of optomechanical signals to the external test system.

[0050] 3. Angle Adjustment and AA Test

[0051] Rotation positioning: The rotation motor 401 of the test rotation platform 4 is started, driving the rotation frame 406 to rotate the optical engine test lighting mechanism 1; during the rotation, the sensor plates 405 on both sides of the rotation frame 406 cooperate with the sensor 404 on the sensor mounting plate 402 to provide real-time feedback on the rotation angle and accurately control the rotation to the AA test angle between the R / B (red / blue) optical engine and the semi-finished product bracket.

[0052] Stable positioning: Adjustable limit post 407 limits the extreme position of rotating frame 406 to avoid excessive rotation; rotating frame 406 cooperates with the output shaft of rotating motor 401 through insertion hole 408, and the cutting grooves on both sides cooperate with locking bolts 409 to achieve flexible locking, ensuring no loosening or deviation during rotation;

[0053] AA Test: After the angle adjustment is completed, the optical engine and the semi-finished bracket are precisely aligned, and the AA test is completed through an external optical inspection system to detect key indicators such as the imaging accuracy of the optical engine and the alignment of the optical path.

[0054] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An AA test mechanism for optomechanical XR, characterized by: Including light machine test lighting mechanism (1), transfer mechanism (2), fixed transfer platform (3) and test rotating platform (4), the test rotating platform (4) drives light machine test lighting mechanism (1) rotation, the fixed transfer platform (3) drives transfer mechanism (2) rotation; The light machine test lighting mechanism (1) includes a platform support (101), the platform support (101) is installed with a support column (103), a second moving seat (108) is slidably installed on one side of the support column (103), the platform support (101) is installed with a cylinder (102) for driving the second moving seat (108) to lift, the second moving seat (108) is reciprocally slidably installed at the rear portion of the first moving seat (106), the first moving seat (106) is installed with a guide wheel (104) on one side of the platform support (101), the platform support (101) is provided with a guide hole (105) matched with the guide wheel (104), and the guide hole (105) is inclinedly arranged; One end of the support column (103) is installed with a vacuum limiting jig (110), the first moving seat (106) is installed with a floating needle seat (111) and an adapter PCB (112), a plurality of elastic sheet probes are arranged in the floating needle seat (111); the lifting or lowering of the cylinder (102) drives the floating needle seat (111) to be away from or aligned with the vacuum limiting jig (110) obliquely; The transfer mechanism (2) includes a clamping cylinder (201) and a base (202), the base (202) is installed with a module transfer installation assembly (204) at the top end, the base (202) is installed with the clamping cylinder (201) at the bottom end, the clamping cylinder (201) is driven by a first clamping jaw (203) and a second clamping jaw (207), the second clamping jaw (207) is installed with a soft and hard PCB (208), the soft and hard PCB (208) is installed with a needle seat cover plate (206), the module transfer installation assembly (204) is installed with a needle seat (205) corresponding to the needle seat cover plate (206), and the needle seat (205) is inlaid with a probe (2043) matched with the soft and hard PCB (208); The module transfer installation assembly (204) includes a support block (2041) and a side plate (2042), the support block (2041) is installed with a product pressing block (2044) through a pin shaft, and the support block (2041) is installed with a pre-pressing block (2045) below the product pressing block (2044) through a pin shaft.

2. The AA test mechanism of an optical-mechanical XR according to claim 1, wherein: The support column (103) and the second moving seat (108) are connected through a second sliding assembly (109), the second moving seat (108) and the first moving seat (106) are connected through a first sliding assembly (107), and the first sliding assembly (107) and the second sliding assembly (109) are both composed of a linear guide rail and a sliding block.

3. The AA test mechanism of an optical-mechanical XR according to claim 1, wherein: The test rotating platform (4) comprises a rotating motor (401), a fixed plate (403) and a rotating frame (406), the bottom end of the fixed plate (403) is provided with the rotating motor (401), the rotating motor (401) drives the rotating frame (406) to rotate, the fixed plate (403) is provided with an inductor mounting plate (402) on one side of the rotating frame (406), the inductor mounting plate (402) is provided with two inductors (404), and the two sides of the rotating frame (406) are respectively provided with inductive sheets (405) corresponding to the two inductors (404).

4. The AA test mechanism of claim 3, wherein: The rotating frame (406) is an L-shaped frame, and the rotating frame (406) is provided with two adjustable limiting columns (407).

5. The AA test mechanism of claim 3, wherein: The rotating frame (406) is provided with a jack (408) matched with an output shaft of the rotating motor (401), cutting grooves are formed on the two sides of the jack (408), and the rotating frame (406) is provided with locking bolts (409) locking the output shaft on one side.

6. The AA test mechanism of an optical-mechanical XR according to claim 1, wherein: The fixed transfer platform (3) comprises a hollow rotating platform and a base, and the hollow rotating platform drives the base to rotate.

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