3LCOS phase delay compensation chip coupling assembly device

Abstract

The utility model provides a kind of 3LCOS phase delay compensation sheet coupling assembly device, belong to micro projection display assembly technical field.A kind of 3LCOS phase delay compensation sheet coupling assembly device, gas path gripper assembly includes blowing and sucking gas path pipe fitting and gas source;Blowing and sucking gas path pipe fitting is connected with gas source;Blowing and sucking gas path pipe fitting is connected with vacuum chuck by pneumatic pipe, to generate the behavior of sucking and blowing, complete two kinds of actions of grabbing and releasing phase delay compensation sheet;Workbench component is fixed on base, and its just above is fixedly arranged with the calibration component;Solidification component is movably arranged between workbench component and calibration component;Position adjusting component is fixedly connected with vacuum chuck opposite on base;To control vacuum chuck relative movement above the workbench component.The purpose of high-precision coupling assembly is realized by the device, improve the assembly yield between phase delay compensation sheet and compensation support, improve production efficiency, the reliability of assembled product is higher, and stability is better.

Description

Technical Field

[0001] This utility model belongs to the field of micro projection display assembly technology, specifically relating to a 3LCOS phase delay compensation sheet coupling assembly device. Background Technology

[0002] 3LCOS projection technology is based on LCOS (Liquid Crystal on Silicon) technology. The most significant advantage of 3LCOS projection technology is its ultra-high contrast ratio. Through precise control and modulation of light, 3LCOS projection technology can present deeper blacks and brighter whites, thus achieving a high-contrast image effect, making the picture more vivid and lifelike, and the colors more vibrant. The phase delay film has a crucial impact on the contrast ratio of LCOS projectors; it mainly achieves this key role by affecting light leakage.

[0003] The inherent delay of LCOS leads to severe light leakage in the "off" state, resulting in grayish blacks and low contrast. The phase retardation compensation film cancels out this inherent delay, greatly suppressing light leakage in the "off" state, producing exceptionally pure blacks and extremely high contrast. Through optimized design, the polarization conversion efficiency in the "on" state can be improved, making bright states brighter and colors more accurate. Compensating for harmful delay ensures that "bright areas are bright, and dark areas are dark," making it an indispensable component for achieving high contrast ratios (e.g., above 10000:1). Therefore, the phase retardation compensation film is one of the core components for achieving high contrast in LCOS; without it, the contrast ratio of LCOS would be very low. Precise calibration is required during the assembly and coupling of the phase retardation compensation film and its support. The coupling accuracy between the phase retardation compensation film and its support must be controlled to a deviation of no more than 0.15mm in the X and Y directions, and a distance between them in the Z direction between 0.03mm and 0.08mm. If there is no gap between the two in the Z direction, the adhesive will come unglued due to residual stress after fixation. If the phase delay compensation piece is coupled to the compensation bracket by its own gravity, the coupling distance between the two in the Z direction will be between 0.1mm and 0.15mm, which will result in an excessive gap and affect the optical performance of the phase delay compensation piece.

[0004] In addition, the phase retardation compensation sheet cannot be fixed to the compensation bracket by pressing directly (the phase retardation compensation sheet will deform, which will affect its flatness, introduce angular errors, disrupt the light reflection path, and reduce the light utilization rate and image uniformity).

[0005] During assembly, the phase delay compensator must be protected from contamination by touch while ensuring efficient assembly with the compensation bracket. Furthermore, calibration accuracy typically requires strict control; therefore, a high-precision phase delay compensator coupling and assembly device is essential. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a 3LCOS phase delay compensation plate coupling assembly device to address the shortcomings of the low coupling accuracy of the existing phase delay compensation plate and compensation bracket.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A 3LCOS phase delay compensation plate coupling assembly device includes a base, a position adjustment component, a gas path gripper component, a worktable component, a calibration component, and a curing component; The pneumatic gripper assembly includes a blow-suction pneumatic pipe and a gas source; the blow-suction pneumatic pipe is connected to the gas source; the blow-suction pneumatic pipe is connected to a vacuum suction cup via a pneumatic pipe to generate air intake and blowing behavior, thereby completing the two actions of gripping and releasing the phase delay compensation plate. The workbench assembly is fixed on the base, and the calibration assembly is fixedly disposed directly above it; the curing assembly is movably disposed between the workbench assembly and the calibration assembly; The position adjustment component is mounted on the base and fixedly connected to the vacuum suction cup; it is used to control the relative movement of the vacuum suction cup above the worktable assembly.

[0008] Furthermore, the position adjustment assembly includes a three-degree-of-freedom displacement adjustment platform, an adjustment platform base plate, a guide rail, and a connecting arm; the guide rail is fixedly mounted on the base; the adjustment platform base plate, which is fixedly mounted at the bottom of the three-degree-of-freedom displacement adjustment platform, is slidably connected to the base via the guide rail; one end of the connecting arm is fixedly mounted on the three-degree-of-freedom displacement adjustment platform, and the other end is fixedly connected to the suction cup base; the suction cup base is fixedly connected to the vacuum suction cup.

[0009] Furthermore, the position adjustment assembly also includes a quick-release elbow clamp; a side lug plate extends upward from the side of the adjustment platform base plate; the quick-release elbow clamp is fixedly mounted on the base, and its connecting rod working end is fixedly connected to the side lug plate.

[0010] Furthermore, the pneumatic air passage includes a pneumatic valve switch; the pneumatic valve switch is connected in sequence from its first air port to a throttle valve, a three-way valve, and a vacuum generator, and then connected in another pipe to the second air port of the pneumatic valve switch; the third end of the three-way valve is connected to one end of the pneumatic tube; the other end of the pneumatic tube is connected to the vacuum suction cup; and the third air port of the pneumatic valve switch is connected to an external gas source.

[0011] Furthermore, the workbench assembly includes a support base; the support base is fixedly mounted on the base; a placement slot and a working slot are provided above the support base, which is parallel to the moving direction of the quick elbow clamp linkage; positioning pins that cooperate with the coupling compensation bracket are provided on both sides of the working slot.

[0012] Furthermore, a pressing cover is movably hinged above the support base for movably pressing and compensating the bracket.

[0013] Furthermore, the calibration assembly includes a first support rod and a calibration camera; one end of the first support rod is fixedly mounted on the base, and the other end is fixedly connected to the calibration camera; the calibration camera has a calibration reference mark on its screen.

[0014] Furthermore, the calibration reference markers are three virtual rectangular frames with the same geometric center and parallel corresponding edges, set on the calibration screen of the calibration camera; the three virtual rectangular frames include a first frame, a second frame, and a third frame, which are sequentially nested from the inside out; the first frame coincides with the inner frame of the coupling compensation bracket.

[0015] Furthermore, the curing assembly includes a second support rod, an angle limiting block, a swing arm rod, and a UV lamp; one end of the second support rod is fixedly connected to the base, and the other end is fixedly connected to the angle limiting block; one end of the swing arm rod is rotatably connected to the second support rod with a gap below the angle limiting block, and the other end is fixedly connected to the UV lamp.

[0016] Preferably, the vacuum suction cup is an SMC vacuum suction cup.

[0017] Compared with existing technologies, this invention uses a pneumatic gripper assembly to create positive and negative pressure environments for gripping and releasing the phase delay compensation plate. The compensation bracket is fixedly positioned above the worktable assembly, and a position adjustment assembly controls a vacuum suction cup, which moves relative to the compensation bracket along the X, Y, and Z axes above the worktable assembly. A calibration assembly confirms that the error in the X and Y directions is maintained within 0.15mm on each side. A gentle, vertical blowing force is applied to the phase delay compensation plate using the pneumatic gripper assembly, a throttle valve, and a constant-pressure gas source, maintaining the vertical axial distance between the phase delay compensation plate and the compensation bracket within the range of 0.03mm-0.08mm. UV adhesive is then applied and cured by irradiation of the applied area using a curing assembly. This device achieves high-precision, clean assembly, improving the assembly yield and accuracy between the phase delay compensation plate and the compensation bracket. Furthermore, it reduces working hours, increases production efficiency, and results in more reliable and stable assembled products. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings.

[0019] Figure 1 One of the three-dimensional structural schematic diagrams of this utility model embodiment; Figure 2 : A second three-dimensional structural schematic diagram of an embodiment of this utility model; Figure 3 : One of the structural schematic diagrams of the position adjustment component of this utility model; Figure 4 : The second schematic diagram of the position adjustment component of this utility model; Figure 5 : Schematic diagram of the pneumatic gripper assembly of this utility model; Figure 6 : One of the schematic diagrams of the workbench assembly structure of this utility model; Figure 7 : The second schematic diagram of the workbench assembly structure of this utility model; Figure 8 : Schematic diagram of the compensation bracket structure of this utility model; Figure 9 This utility model provides a schematic diagram of the theoretically optimal calibration image from above for the calibration camera. Among them, 1-base, 2-position adjustment assembly, 21-three-degree-of-freedom displacement adjustment table, 22-adjustment table base plate, 23-guide rail, 24-connecting arm, 25-quick elbow clamp, 26-side ear plate, 3-pneumatic gripper assembly, 31-blowing and suction air passage fittings, 311-air valve switch, 312-first air port, 313-second air port, 314-third air port, 315-throttle valve, 316-three-way valve, 317-vacuum generator, 33-pneumatic pipe, 34-vacuum suction cup, 3 5-Suction cup base, 4-Workbench assembly, 41-Support base, 42-Placement slot, 43-Working slot, 44-Positioning pin, 45-Pressure cover, 5-Calibration assembly, 51-First support rod, 52-Calibration camera, 53-First frame line, 54-Second frame line, 55-Third frame line, 6-Curing assembly, 61-Second support rod, 62-Angle limit block, 63-Swing arm rod, 64-UV lamp, 7-Phase delay compensation sheet, 8-Compensation bracket, 81-Inner frame line. Detailed Implementation

[0020] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.

[0021] In the description of this utility model, it should be noted that the use of terms such as "first" and "second" to define the components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this utility model.

[0022] For examples, see Figure 1 A 3LCOS phase delay compensation sheet coupling assembly device includes a base 1, a position adjustment component 2, an air path gripper component 3, a worktable component 4, a calibration component 5, and a curing component 6. The pneumatic gripper assembly 3 includes a blow-suction pneumatic pipe 31 and a gas source; the blow-suction pneumatic pipe 31 is connected to the gas source; the blow-suction pneumatic pipe 31 is connected to a vacuum suction cup 34 through a pneumatic pipe 33; The workbench assembly 4 is fixed on the base 1, and the calibration assembly 5 is fixedly disposed directly above it; the curing assembly 6 is movably disposed between the workbench assembly 4 and the calibration assembly 5. The position adjustment component 2 is fixedly connected to the vacuum suction cup 34 on the base 1; The position adjustment assembly 2 includes a three-degree-of-freedom displacement adjustment platform 21, an adjustment platform base plate 22, a guide rail 23, and a connecting arm 24. The guide rail 23 is fixedly mounted on the base 1. The adjustment platform base plate 22, which is fixedly mounted at the bottom of the three-degree-of-freedom displacement adjustment platform 21, is slidably connected to the base 1 via the guide rail 23. One end of the connecting arm 24 is fixedly mounted on the Z-axis displacement block at the adjustment end of the three-degree-of-freedom displacement adjustment platform 21, and the other end is fixedly connected to the suction cup base 35. The three-degree-of-freedom displacement adjustment platform 21 drives the vacuum suction cup 34 to make fine adjustments along the X, Y, and Z axes via three adjustment knobs. The suction cup base 35 is fixedly connected to the vacuum suction cup 34. The position adjustment assembly 2 also includes a quick-release elbow clamp 25. A side ear plate 26 extends upward from the side of the adjustment platform base plate 22. The quick-release elbow clamp 25 is fixedly mounted on the base 1, and its connecting rod working end is fixedly connected to the side ear plate 26. When the lever of the quick-release elbow clamp 25 is pulled, the connecting rod of the quick-release elbow clamp 25 causes the adjustment table base plate 22 to slide quickly along the guide rail 23, thereby enabling the vacuum suction cup 34 to move and position relatively quickly between two points above the worktable assembly, improving assembly efficiency.

[0023] The pneumatic air passage 31 includes a valve switch 311. The valve switch 311 is connected in series from its first air port 312 to a throttle valve 315, a three-way valve 316, and a vacuum generator 317, and then to the second air port 313. The remaining end of the three-way valve 315 is connected to one end of the pneumatic tube 33. The other end of the pneumatic tube 33 is connected to the vacuum suction cup 34. The third air port 314 of the valve switch is connected to an external gas source, which continuously supplies high-pressure air at a constant pressure into the third air port 314. The vacuum generator 317 is a device that uses a high-pressure gas source to generate negative pressure. Its core principle is the Venturi effect and jet entrainment, which can create a vacuum environment in a localized area without a mechanical vacuum pump.

[0024] The vacuum suction cup 34 is an SMC vacuum suction cup. The suction cup body is made of soft materials such as rubber, silicone or fluororubber and a metal frame, which ensures tight contact and sealing with the plane of the phase delay compensation plate 7. The vacuum generator 317 removes the air in the vacuum suction cup 34 to form a negative pressure. The external atmospheric pressure presses the phase delay compensation plate 7 and the vacuum suction cup 34 together, thus completing the gripping action.

[0025] Grasping Action Workflow: First, switch the air valve 311 to one side, close the first air port 312, and open the second air port 313. At this time, the high-pressure gas from the external constant-pressure gas source flows through the third air port 313 and then through the pipeline into the vacuum generator 317, and flows out to the outside from the air outlet in the middle of the vacuum generator 317. The high-speed airflow ejected from the second air port 313 has the ability to entrain the surrounding still fluid. It continuously passes through the pipeline and the three-way valve 316, sucking up the air around the end of the vacuum suction cup 34, and finally generating negative pressure at the end of the vacuum suction cup 34, thus completing the action of grasping the phase delay compensation plate 7.

[0026] Release Action Workflow: Switch the air valve 311 to the opposite side, opening the first air port 312 and closing the second air port 313, stopping the vacuum generator 317. At this time, high-pressure gas from an external constant-pressure gas source flows through the pipeline, sequentially passing through the throttle valve 315 and the three-way valve 316, and exits from the vacuum suction cup 34. At a height of 2mm-3mm from the compensation bracket, by adjusting the throttle valve 315 to its minimum opening and closing stroke, the phase delay compensation plate 7 is gently blown away from the vacuum suction cup 34 with minimal blowing force and adhered to the compensation bracket 8. After the release action is completed, by combining the specified opening and closing stroke of the throttle valve 315 with the constant-pressure gas source, the clean airflow can be controlled to flow out at a constant flow rate, thereby accurately and quickly generating a constant, gentle blowing force on the phase delay compensation plate 7 (the magnitude of this blowing force was obtained through repeated experimental measurements).

[0027] The worktable assembly 4 includes a support base 41, which is fixedly mounted on the base 1. A placement slot 42 and a working slot 43 are provided above the support base 41, which is parallel to the moving direction of the quick-release elbow clamp 25 linkage. Positioning pins 44 that cooperate with the coupling compensation bracket 8 are provided on both sides of the working slot 43. A pressing cover 45 is also movably hinged above the support base 41 to press the compensation bracket 8, preventing airflow or other factors from affecting the coupling accuracy.

[0028] The placement slot 42 is used to pre-place the phase delay compensation piece 7 for coupling with the limiting clamp. The positions of the placement slot 42 and the working slot 43 correspond to the maximum and minimum distances that the vacuum suction cup 34 moves when the quick-release elbow clamp 25 is engaged and disengaged. Utilizing the quick-release elbow clamp 25's rapid loading and unloading and accurate positioning features, the phase delay compensation piece is initially and quickly transferred. Subsequent fine-tuning using the three-degree-of-freedom displacement adjustment table 21 achieves precise positioning. The working slot 43 is designed to work with the positioning pin 44 to achieve locking and limiting fixation of the compensation bracket 8.

[0029] The calibration assembly 5 includes a first support rod 51 and a calibration camera 52; one end of the first support rod 51 is fixedly mounted on the base 1, and the other end is fixedly connected to the calibration camera 52; the calibration screen of the calibration camera is provided with a calibration reference mark, which is used to assist the three-degree-of-freedom displacement stage 21 in calibrating the position of the phase delay compensation plate 7. The calibration reference mark can be, for example, Figure 9 The three virtual rectangular frames shown have the same geometric center and their corresponding edges are all parallel to each other; the three virtual rectangular frames, including the first frame 53, the second frame 54, and the third frame 55, are sequentially nested from the inside out; the first frame 53 coincides with the inner frame 81 of the compensation bracket 8 in the image; the dimensions of the second frame 54 and the third frame 55 are obtained by offsetting the overall size of the phase delay compensation piece 7 by 0.15mm outward and 0.15mm inward, respectively (see...). Figure 9 This is the position calibration image for the phase delay compensation chip 7 under ideal conditions. Figure 9 The distances shown are not the actual distances in the calibration reference markings, but are only for illustrative purposes.

[0030] After the phase delay compensation piece 7 is placed on the compensation bracket 8, the edge of the phase delay compensation piece 7 is observed through the calibration camera 52 to see if it is within the allowable error range between the second frame line 54 and the third frame line 55. This allows for a quick determination of whether the placement accuracy error meets the specified standard. If it exceeds the allowable range, the phase delay compensation piece 7 is retrieved again and its position is adjusted once more.

[0031] The curing component 6 includes a second support rod 61, an angle limiting block 62, a swing arm rod 63, and a UV lamp 64; one end of the second support rod 61 is fixedly connected to the base 1, and the other end is fixedly connected to the angle limiting block 62; one end of the swing arm rod 63 is rotatably connected to the second support rod 61 with a gap below the angle limiting block 62, and the other end is fixedly connected to the UV lamp 64.

[0032] When the coupling assembly work begins, the compensation bracket 8 is first fixedly placed above the workbench assembly 4. The working groove 43, in conjunction with the positioning pin 44, achieves the locking and limiting fixation of the compensation bracket 8 in the X and Y directions. Then, the pressing cover 45 is rotated and pressed and fixed on the compensation bracket 8 to achieve the pressing and limiting fixation in the Z direction. The phase delay compensation piece 7 to be coupled is transferred to the placement groove 42 through a special transfer tool to achieve the initial locking and limiting in the X and Y directions in the current state (the placement groove 42 and the corresponding edge line of the inner frame line 81 are parallel to each other).

[0033] Move the quick-release elbow clamp 25 to the pull-back release state, thereby driving the adjustment platform base plate 22, the three-degree-of-freedom displacement adjustment platform 21, the suction cup base 35 and the vacuum suction cup 34 to slide quickly along the guide rail 23 through the connecting rod. Finally, the vacuum suction cup 34 is moved to the top of the placement slot 42. The Z-axis adjustment knob of the three-degree-of-freedom displacement adjustment platform 21 is used to adjust the vacuum suction cup 34 to maintain a suitable gripping distance with the phase delay compensation plate 7.

[0034] Subsequently, positive and negative pressure environments are created through the pneumatic gripper assembly 3 to perform corresponding gripping actions on the phase delay compensation plate 7 (the operation process is as described above and will not be repeated here). The vacuum suction cup 34 grips the phase delay compensation plate 7, and the Z-axis adjustment knob of the three-degree-of-freedom displacement adjustment table 21 is used to adjust the vacuum suction cup 34 after gripping the phase delay compensation plate 7 to maintain a suitable transfer distance (this action is to ensure that the phase delay compensation plate 7 does not collide with other components when the rapid elbow clamp 25 moves the displacement).

[0035] Then, the quick-release elbow clamp 25 is moved to the locked position, thereby causing the adjusting platform base plate 22, the three-degree-of-freedom displacement adjusting platform 21, the suction cup base 35, and the vacuum suction cup 34 to slide rapidly along the guide rail 23 via the connecting rod. Finally, the vacuum suction cup 34 is moved above the compensation bracket 8. First, the Z-axis adjustment knob of the three-degree-of-freedom displacement adjusting platform 21 is used to adjust the height distance between the phase delay compensation piece 7 held by the vacuum suction cup 34 and the compensation bracket 8 at the coupling position, which is 2mm-3mm. (This height distance allows for unrestricted adjustment of the X and Y axis errors and will not affect the coupling of the phase delay compensation piece 7.) (The phase delay compensation plate 7 is coupled to the compensation bracket 8 at the coupling position). Then, by adjusting the X and Y axis adjustment knobs of the three-degree-of-freedom displacement adjustment stage 21, the phase delay compensation plate 7, gripped by the vacuum suction cup 34, is displaced relative to the compensation bracket in the X and Y axes. While adjusting the X and Y axis displacement, the edge of the phase delay compensation plate 7 is observed through the calibration camera 52 to see if it is within the allowable error range between the second frame line 54 and the third frame line 55 in the camera's image, until the standard is met. Then, the phase delay compensation plate 7 is released through the air path gripper assembly 3, and a constant, gentle blowing force is applied to the phase delay compensation plate 7. Under the action of this constant, gentle blowing force combined with the influence of the phase delay compensation plate 7's own gravity, the vertical Z-axis distance between the phase delay compensation plate 7 and the compensation bracket 8 remains in the optimal coupling range of 0.03mm-0.08mm.

[0036] Finally, after recalibrating the camera 52 to confirm that the X and Y errors are still within the specified range, UV glue is applied under constant and gentle blowing force. Then, the swing arm 63 is rotated around the second support 61 until the UV lamp 64 rotates to above the glue application position and is locked by the angle limiting block 62. This allows the optimal irradiation position to be quickly reached, enabling irradiation of the glue application position and curing of the UV glue. This completes the high-precision coupling between the phase delay compensation plate 7 and the compensation bracket 8.

[0037] This device achieves high-precision coupling assembly, improves the assembly yield between the phase delay compensation piece 7 and the compensation bracket 8, reduces working hours, increases production efficiency, and results in more reliable and stable assembled products.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A 3LCOS phase delay compensation plate coupling assembly device, characterized in that: Includes a base, position adjustment assembly, air path gripper assembly, worktable assembly, calibration assembly, and curing assembly; The pneumatic gripper assembly includes a blow-suction pneumatic pipe and a gas source; the blow-suction pneumatic pipe is connected to the gas source; the blow-suction pneumatic pipe is connected to a vacuum suction cup via a pneumatic pipe to generate air intake and blowing behavior, thereby completing the two actions of gripping and releasing the phase delay compensation plate. The workbench assembly is fixed on the base, and the calibration assembly is fixedly disposed directly above it; the curing assembly is movably disposed between the workbench assembly and the calibration assembly; The position adjustment component is mounted on the base and fixedly connected to the vacuum suction cup; it is used to control the relative movement of the vacuum suction cup above the worktable assembly.

2. The 3LCOS phase delay compensation plate coupling assembly device according to claim 1, characterized in that: The position adjustment assembly includes a three-degree-of-freedom displacement adjustment platform, an adjustment platform base plate, a guide rail, and a connecting arm; the guide rail is fixedly mounted on the base; the adjustment platform base plate, which is fixedly mounted at the bottom of the three-degree-of-freedom displacement adjustment platform, is slidably connected to the base via the guide rail; one end of the connecting arm is fixedly mounted on the three-degree-of-freedom displacement adjustment platform, and the other end is fixedly connected to the suction cup base; the suction cup base is fixedly connected to the vacuum suction cup.

3. The 3LCOS phase delay compensation plate coupling assembly device according to claim 2, characterized in that: The position adjustment assembly also includes a quick elbow clamp; a side ear plate extends upward from the side of the adjustment platform base plate; the quick elbow clamp is fixedly mounted on the base, and its connecting rod working end is fixedly connected to the side ear plate.

4. The 3LCOS phase delay compensation plate coupling assembly device according to claim 1, characterized in that: The pneumatic circuit includes a pneumatic valve switch; the pneumatic valve switch is connected in sequence from its first air port to a throttle valve, a three-way valve and a vacuum generator, and then connected to the second air port of the pneumatic valve switch; the third end of the three-way valve is connected to one end of the pneumatic tube; the other end of the pneumatic tube is connected to the vacuum suction cup; and the third air port of the pneumatic valve switch is connected to an external gas source.

5. The 3LCOS phase delay compensation plate coupling assembly device according to claim 3, characterized in that: The workbench assembly includes a support base; the support base is fixedly mounted on the base; a placement slot and a working slot are provided above the support base, which is parallel to the moving direction of the quick elbow clamp link; positioning pins that cooperate with the coupling compensation bracket are provided on both sides of the working slot.

6. The 3LCOS phase delay compensation plate coupling assembly device according to claim 5, characterized in that: A pressing cover is also movably hinged above the support base for movably pressing and compensating the bracket.

7. The 3LCOS phase delay compensation plate coupling assembly device according to claim 1, characterized in that: The calibration assembly includes a first support rod and a calibration camera; one end of the first support rod is fixedly mounted on the base, and the other end is fixedly connected to the calibration camera; the calibration camera has a calibration reference mark on its screen.

8. The 3LCOS phase delay compensation plate coupling assembly device according to claim 7, characterized in that: The calibration reference markers are three virtual rectangular frames with the same geometric center and parallel corresponding edges, set on the calibration screen of the calibration camera; the three virtual rectangular frames, including a first frame, a second frame, and a third frame, are nested from the inside out; the first frame coincides with the inner frame of the bracket to be coupled and compensated.

9. The 3LCOS phase delay compensation plate coupling assembly device according to claim 1, characterized in that: The curing assembly includes a second support rod, an angle limiting block, a swing arm, and a UV lamp; one end of the second support rod is fixedly connected to the base, and the other end is fixedly connected to the angle limiting block; one end of the swing arm is rotatably connected to the second support rod with a gap below the angle limiting block, and the other end is fixedly connected to the UV lamp.

10. The 3LCOS phase delay compensation plate coupling assembly device according to claim 1, characterized in that: The vacuum suction cup is an SMC vacuum suction cup.

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