Head-mounted near-eye display device positioning mechanism

Abstract

The application relates to a head-mounted near-eye display device positioning mechanism and belongs to the technical field of head-mounted device detection. The positioning mechanism comprises a positioning carrier, the positioning carrier comprises a base, a head-mounted device profiling positioning seat is fixedly connected to the top of the base, a profiling jig groove for positioning the head-mounted device is arranged in the top of the head-mounted device profiling positioning seat, the shape of the profiling jig groove is matched with the outer cover of the head-mounted device, a jig backstop is arranged on one side of the profiling jig groove and fixedly connected with the base, a profiling nose pad plate is arranged on the other side of the profiling jig groove and slidingly connected with the base, and the shape of the profiling nose pad plate is matched with the nose pad of the head-mounted device. The positioning mechanism has high positioning precision, small positioning precision error in each repeated positioning, rapid product alignment, and high detection efficiency. The head-mounted device is designed according to profiling, has good wrapping performance, high precision, good protection effect on the head-mounted device, and relatively improved product quality.

Description

Technical Field

[0001] This application relates to the field of head-mounted device detection technology, and in particular to a positioning mechanism for a head-mounted near-eye display device. Background Technology

[0002] Currently, displays are widely used in various aspects of people's lives, becoming an indispensable part of daily life. Furthermore, with the development of science and technology, virtual reality (VR) and augmented reality head-mounted devices have incorporated many new technologies, gradually drawing attention to near-eye displays (NEDs). Previously, NED system manufacturers lacked objective and quantitative methods to test the quality of their displays, relying solely on manual evaluation.

[0003] However, as NEDs transition from novelty products to mainstream offerings, achieving reliable and predictable performance will become increasingly critical. For consumer-grade NED systems, ensuring a consistent customer experience and guaranteeing that products meet the reputation and performance standards consistent with the manufacturer's brand are essential.

[0004] In VR / AR component development, the main components are the displays and optics of head-mounted devices. However, the limited field of view in current head-mounted devices restricts user immersion in the images. Improving this through optics presents challenges in terms of ergonomics, manufacturing size, weight, and scalability.

[0005] Then there's the visual experience. AR / VR displays project visual information very close to the human eye, covering the user's full field of vision. However, this proximity to the human eye also amplifies display defects that users usually cannot perceive when viewing from a distance.

[0006] Near-eye display defects have a significant impact on user experience, potentially hindering visualization and device operability. To improve product quality and meet user requirements, advanced optical inspection equipment is necessary.

[0007] Before leaving the factory, head-mounted devices undergo pre-shipment testing. Among optical testing equipment, the positioning accuracy requirements for head-mounted devices are relatively high, because this involves the stability and accuracy of the algorithm. Currently, VR glasses are mostly very different in appearance in pursuit of fashion and aesthetics, and their shapes are not flat, which brings some difficulties to the positioning of the products.

[0008] Currently, most head-mounted devices are fixed using general-purpose clamps. These clamps typically use limiting posts to secure the four sides of the product and then add a pressure strip in the middle to press the product down from top to bottom. This method results in low repeatability and often damages the product due to the limiting mechanism. Summary of the Invention

[0009] This application provides a positioning mechanism for a head-mounted near-eye display device to solve the problems of low repeatability and damage to the product caused by the limiting methods in related technologies.

[0010] This application provides a positioning mechanism for a head-mounted near-eye display device, including:

[0011] A positioning platform, comprising a base, a head-mounted device contour positioning seat fixedly connected to the top of the base, and a contour jig groove for positioning the head-mounted device on the top of the head-mounted device contour positioning seat, the shape of which is adapted to the outer cover of the head-mounted device.

[0012] A positioning fixture, comprising a fixture rear baffle located on one side of the contour jig groove and fixedly connected to the base, and a contour nose pad located on the other side of the contour jig groove and slidably connected to the base, the shape of the contour nose pad being adapted to the nose pad of the head-mounted device.

[0013] In some embodiments: the base is provided with a linear guide rail that is slidably connected to the contoured nose pad, and the contoured nose pad moves on the linear guide rail in a direction that approaches or moves away from the contoured positioning seat of the head-mounted device;

[0014] The contoured nose pad has a conical or arc-shaped structure, and the width of the contoured nose pad gradually decreases towards the contoured positioning seat of the head-mounted device.

[0015] In some embodiments: a push-pull slide is slidably connected to the base, the push-pull slide is floatingly connected to the contoured nose pad, and the contoured nose pad is located between the push-pull slide and the head-mounted device contoured positioning seat;

[0016] The contoured nose pad is fixedly connected to a guide rod that is slidably connected to the push-pull slide. The push-pull slide is connected to a push spring that pushes the contoured nose pad away from the push-pull slide.

[0017] In some embodiments: a stepped hole is provided on the push-pull slide, and a threaded hole is provided on the conformal nose plate; an internal hexagonal screw connected to the threaded hole is provided in the stepped hole.

[0018] The internal hexagonal screw slides back and forth within the stepped hole following the contoured nose pad, and limits the maximum distance between the contoured nose pad and the push-pull slide.

[0019] The push-pull slide and the contoured nose plate each have a positioning hole at one end that is close to each other, which partially accommodates the push spring.

[0020] In some embodiments: the base is further provided with a driving mechanism that pushes the push-pull slide and the contoured nose pad to slide on the base. The driving mechanism is connected to the push-pull slide and can be any one of a manual elbow clamp, an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder.

[0021] In some embodiments: the contour jig groove is an arc groove with the opening facing upward, and a vacuum suction cup is provided in the contour jig groove. The vacuum suction cup is used to adsorb the outer cover of the head-mounted device. There are two vacuum suction cups, and the two vacuum suction cups are symmetrically arranged in the contour jig groove.

[0022] In some embodiments, a headband clamp is also included, the headband clamp including first adjusting plates fixed to both sides of the base or the rear baffle of the fixture and symmetrically arranged, each of the first adjusting plates being provided with a headband clamping assembly for clamping the headband;

[0023] The end of the first adjusting plate away from the base or the rear baffle of the fixture is connected to a second adjusting plate, and the end of the second adjusting plate away from the first adjusting plate is provided with a headband limiting component for limiting the headband.

[0024] In some embodiments: both ends of the first adjusting plate and the second adjusting plate are provided with a first elongated hole extending along the length direction of the first adjusting plate and the second adjusting plate, and the first adjusting plate is provided with a second elongated hole for connecting the headband clamping assembly, and the length direction of the second elongated hole is perpendicular to the length direction of the first elongated hole.

[0025] In some embodiments: the headband clamping assembly includes a headband clamping seat, the headband clamping seat having a headband positioning groove for positioning the headband, and a headband pressure plate rotatably connected to the headband clamping seat for pressing the headband into the headband positioning groove;

[0026] The headband clamping seat is also rotatably connected to a buckle for unlocking or locking the headband pressure plate. The headband clamping seat is provided with a headband adjusting block located on one side of the headband positioning groove for adjusting the width of the headband positioning groove.

[0027] In some embodiments: the headband limiting assembly includes a vertical adjusting plate connected to the second adjusting plate, the vertical adjusting plate having a vertical elongated hole, a horizontal elongated hole, and an oblique elongated hole that is inclined upward;

[0028] The vertical adjustment plate is vertically connected to two spaced headband limiting posts. Each headband limiting post includes a rotating shaft connected to the vertical adjustment plate. The rotating shaft is connected to two spaced bearings, with a spacer between the two bearings.

[0029] The beneficial effects of the technical solution provided in this application include:

[0030] This application provides a positioning mechanism for a head-mounted near-eye display device. The positioning mechanism includes a positioning platform comprising a base, a head-mounted device contour positioning seat fixedly connected to the top of the base, a contour jig groove for positioning the head-mounted device on the top of the contour positioning seat, the shape of the contour jig groove being adapted to the outer cover of the head-mounted device, and a positioning clamp comprising a jig rear baffle located on one side of the contour jig groove and fixedly connected to the base, and a contour nose pad located on the other side of the contour jig groove and slidably connected to the base, the shape of the contour nose pad being adapted to the nose pad of the head-mounted device.

[0031] Therefore, the positioning mechanism for the near-eye display device of this application can perform initial positioning after the head-mounted device is placed in the contour jig slot. After initial positioning, a contour nose pad, whose shape matches the nose pad of the head-mounted device, slides towards the contour positioning seat of the head-mounted device. As the contour nose pad gradually approaches the head-mounted device, it adjusts the position and posture of the head-mounted device according to the shape of the nose pad until the contour nose pad and the rear baffle of the jig clamp and fix the head-mounted device in the contour jig slot, completing the positioning of the head-mounted device. This application has high positioning accuracy and small error in each repeated positioning, which improves the efficiency of product alignment and testing. Because it is designed according to the contour of the head-mounted device, it has good wrapping properties, high accuracy, and also provides good protection for the head-mounted device, thereby improving product quality.

[0032] The positioning mechanism for the head-mounted near-eye display device of this application has a linear guide rail on its base that slidably connects to a contoured nose pad. The contoured nose pad moves along the linear guide rail in a direction approaching or moving away from the head-mounted device's contoured positioning seat. The contoured nose pad has a conical or arc-shaped plate structure, and its width gradually decreases towards the head-mounted device's contoured positioning seat. The contoured nose pad is slidably connected to the base via the linear guide rail, which provides precise positioning for the contoured nose pad's movement in the direction approaching or moving away from the head-mounted device's contoured positioning seat. The contoured nose pad's conical or arc-shaped plate structure and its gradually decreasing width towards the head-mounted device's contoured positioning seat allow it to better conform to and correct the position and posture of the head-mounted device, further improving the positioning accuracy of the head-mounted device.

[0033] The positioning mechanism for the head-mounted near-eye display device of this application also has a sliding slide connected to its base. The sliding slide is floatingly connected to a contoured nose pad, which is located between the sliding slide and the head-mounted device's contoured positioning base. A guide rod is fixedly connected to the contoured nose pad, slidably connected to the sliding slide. A push spring is connected to the sliding slide to push the contoured nose pad away from the sliding slide. The contoured nose pad is floatingly connected to a sliding slide that reciprocates along the length of a linear guide rail on the base. This sliding slide is also slidably connected to the linear guide rail. The sliding slide and the contoured nose pad are interconnected by the guide rod and the push spring. The guide rod provides floating guidance for the contoured nose pad, and the push spring provides floating space for the contoured nose pad. The push spring can accurately press and position the head-mounted device while preventing excessive pressure from damaging the head-mounted device.

[0034] The positioning mechanism of the head-mounted near-eye display device of this application has a stepped hole on the push-pull slide and a threaded hole on the contoured nose pad. An internal hexagonal screw connected to the threaded hole is located in the stepped hole. The internal hexagonal screw slides back and forth within the stepped hole, following the contoured nose pad and limiting the maximum distance between the contoured nose pad and the push-pull slide. Both the push-pull slide and the contoured nose pad have positioning holes at their adjacent ends to partially accommodate the push spring. To limit the maximum distance between the contoured nose pad and the push-pull slide, a stepped hole is provided on the push-pull slide, and a threaded hole is provided on the contoured nose pad, which are connected to each other by an internal hexagonal screw, allowing the contoured nose pad to move relative to the push-pull slide within a defined floating space. The positioning holes on the push-pull slide and the contoured nose pad partially accommodate the push spring, providing mounting and positioning for the push spring between the push-pull slide and the contoured nose pad.

[0035] The positioning mechanism for the head-mounted near-eye display device of this application also includes a drive mechanism on its base for sliding a push-pull slide and a contoured nose pad on the base. The drive mechanism is connected to the push-pull slide and can be any one of a manual elbow clamp, electric cylinder, pneumatic cylinder, or hydraulic cylinder. The drive mechanism, by controlling the forward or backward movement of the push-pull slide and the contoured nose pad on a linear guide rail, precisely moves them. The push-pull slide, through close cooperation, positions the contoured nose pad and the head-mounted device. The drive mechanism, being any one of a manual elbow clamp, electric cylinder, pneumatic cylinder, or hydraulic cylinder, allows for both manual and automatic control, improving the efficiency and automation level of the positioning process.

[0036] The positioning mechanism for the head-mounted near-eye display device of this application features a contour jig groove with an upward-facing arcuate opening. A vacuum suction cup is installed within the contour jig groove to adsorb the outer cover of the head-mounted device. Two vacuum suction cups are symmetrically arranged within the contour jig groove. The upward-facing arcuate opening of the contour jig groove facilitates the placement of the head-mounted device within it. The shape of the contour jig groove is adapted to and conforms closely to the shape of the front cover of the head-mounted device. After the head-mounted device is positioned and clamped within the contour jig groove, it is adsorbed by the vacuum suction cup, ensuring a tight fit between the head-mounted device and the suction cup, thus firmly positioning the head-mounted device against the contour surface of the contour jig groove. This further ensures that the head-mounted device does not vibrate during high-speed movement during testing.

[0037] The positioning mechanism for the head-mounted near-eye display device of this application also includes a headband clamp for clamping and positioning the headband of the head-mounted device. The headband clamp includes first adjusting plates fixed to both sides of the base or fixture rear baffle and symmetrically arranged. Each first adjusting plate is equipped with a headband clamping assembly for clamping the headband. A second adjusting plate is connected to the end of the first adjusting plate away from the base or fixture rear baffle, and a headband limiting assembly is provided at the end of the second adjusting plate away from the first adjusting plate for limiting the headband. The headband clamping assembly on the first adjusting plate clamps the headband, and the headband limiting assembly on the second adjusting plate limits the headband. The headband clamping assembly and the headband limiting assembly together ensure that the headband does not exceed a certain width and height range, thus preventing the headband from colliding or scratching other equipment parts during detection movements, thereby avoiding injury. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a top view of the positioning head-mounted device according to an embodiment of this application;

[0040] Figure 2 This is a three-dimensional structural view of the positioning head-mounted device according to an embodiment of this application;

[0041] Figure 3 This is a three-dimensional structural view of an embodiment of this application;

[0042] Figure 4 This is a schematic diagram of the positioning platform and positioning fixture according to an embodiment of this application;

[0043] Figure 5 This is a cross-sectional view of the positioning fixture according to an embodiment of this application;

[0044] Figure 6 This is a schematic diagram of the headband clamping assembly according to an embodiment of this application;

[0045] Figure 7 This is a schematic diagram of the headband limiting component according to an embodiment of this application.

[0046] Figure label:

[0047] 1. Headset; 2. Headband; 10. Positioning platform; 11. Base; 12. Headset contouring positioning seat; 13. Contouring fixture slot; 14. Vacuum suction cup; 20. Positioning clamp; 21. Fixture backplate; 22. Contouring nose pad; 23. Linear guide rail; 24. Push-pull slide; 25. Guide slide rod; 26. Push spring; 27. Hex socket head cap screw; 28. Stepped hole; 29. ​​Drive mechanism;

[0048] 30. Headband clamp; 31. First adjusting plate; 32. Second adjusting plate; 33. Headband clamping assembly; 34. Headband limiting assembly; 40. Dot screen module; 311. First elongated hole; 312. Second elongated hole; 331. Headband clamping seat; 332. Headband positioning groove; 333. Headband pressure plate; 334. Lock; 335. Headband adjusting block; 336. Rubber pad; 341. Vertical adjusting plate; 342. Vertical elongated hole; 343. Horizontal elongated hole; 344. Diagonal elongated hole; 345. Rotating shaft; 346. Bearing; 347. Spacer. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0050] This application provides a positioning mechanism for a head-mounted near-eye display device, which can solve the problems of low repeatability accuracy of head-mounted near-eye display devices in related technologies and the fact that the limiting methods often cause damage to the product.

[0051] See Figures 1 to 4 As shown, this application embodiment provides a positioning mechanism for a head-mounted near-eye display device, including:

[0052] The positioning platform 10 includes a base 11, on which a head-mounted device contour positioning seat 12 is fixedly connected. A contour jig groove 13 for positioning the head-mounted device 1 is formed on the top of the head-mounted device contour positioning seat 12, and the shape of the contour jig groove 13 is adapted to the outer cover of the head-mounted device 1. The head-mounted device 1 is an augmented reality head-mounted near-eye display device (AR) or a virtual reality head-mounted near-eye display device (VR).

[0053] The positioning fixture 20 includes a fixture rear baffle 21 located on one side of the contour jig groove 13 and fixedly connected to the base 11 or the head-mounted device contour positioning seat 12, and a contour nose pad 22 located on the other side of the contour jig groove 13 and slidably connected to the base 11. The shape of the contour nose pad 22 is adapted to the nose pad of the head-mounted device 1, which is used to fit the user's nose bridge.

[0054] The positioning mechanism for the near-eye display device in this embodiment can initially position the head-mounted device 1 after it is placed in the contour jig slot 13. After the head-mounted device 1 is initially positioned in the contour jig slot 13, the contour nose pad 22, whose shape is adapted to the nose pad of the head-mounted device 1, slides towards the contour positioning seat 12 of the head-mounted device, thereby using the top outer frame or nose pad of the head-mounted device 1 to accurately position the head-mounted device 1.

[0055] As the contoured nose pad 22 gradually approaches the head-mounted device 1, it adjusts the position and posture of the head-mounted device 1 according to its nose pad shape until the contoured nose pad 22 and the fixture rear baffle 21 clamp and fix the head-mounted device 1 within the contoured fixture groove 13, thus completing the positioning of the head-mounted device 1. This application offers high positioning accuracy with minimal error in repeated positioning, improving testing efficiency. It also provides excellent protection for the head-mounted device 1, correspondingly improving product quality.

[0056] In some alternative embodiments: see Figure 4 As shown in the figure, this application embodiment provides a positioning mechanism for a head-mounted near-eye display device. The base 11 of this positioning mechanism is provided with a linear guide rail 23 that slidably connects to a contoured nose pad 22. The contoured nose pad 22 moves along the linear guide rail 23 in a direction approaching or moving away from the head-mounted device contoured positioning seat 12. The contoured nose pad 22 has a conical or arc-shaped plate structure, and its width gradually decreases towards the head-mounted device contoured positioning seat 12.

[0057] In this embodiment, the contoured nose pad 22 is slidably connected to the base 11 via a linear guide 23. The linear guide 23 provides precise positioning for the contoured nose pad 22 to move towards or away from the head-mounted device contoured positioning seat 12. The contoured nose pad 22 has a conical or arc-shaped plate structure to better fit the nose pad of the head-mounted device 1. The width of the contoured nose pad 22 gradually decreases towards the head-mounted device contoured positioning seat 12, thereby enabling the contoured nose pad 22 to better fit and correct the position and posture of the head-mounted device 1, further improving the positioning accuracy of the head-mounted device 1.

[0058] In some alternative embodiments: see Figure 4 and Figure 5 As shown in the figure, this application embodiment provides a positioning mechanism for a head-mounted near-eye display device. A push-pull slide 24 is slidably connected to the base 11 of this positioning mechanism. A contoured nose pad 22 is floatingly connected to the push-pull slide 24 and is located between the push-pull slide 24 and the head-mounted device contoured positioning base 12. A guide rod 25, which is slidably connected to the push-pull slide 24, is fixedly connected to the contoured nose pad 22. A push spring 26 is connected to the push-pull slide 24 to push the contoured nose pad 22 away from the push-pull slide 24.

[0059] In this embodiment, the contoured nose pad 22 is floatingly connected to a push-pull slide 24 that reciprocates along the length of a linear guide rail 23 on the base 11. The push-pull slide 24 is also slidably connected to the linear guide rail 23. The push-pull slide 24 and the contoured nose pad 22 are interconnected via a guide rod 25 and a push spring 26. The guide rod 25 provides floating guidance for the contoured nose pad 22 relative to the push-pull slide 24, and the push spring 26 provides floating space for the contoured nose pad 22. The push spring 26 can precisely press and position the head-mounted device 1 while preventing excessive pressure from the push-pull slide 24 from damaging the head-mounted device 1.

[0060] In some alternative embodiments: see Figure 4 and Figure 5 As shown in the figure, this application embodiment provides a positioning mechanism for a head-mounted near-eye display device. The push-pull slide 24 of this positioning mechanism has a stepped hole 28, and the contoured nose pad 22 has a threaded hole. An internal hexagonal screw 27, connected to the threaded hole, is provided in the stepped hole 28. The internal hexagonal screw 27 slides back and forth within the stepped hole 28 following the contoured nose pad 22, limiting the maximum distance between the contoured nose pad 22 and the push-pull slide 24. Positioning holes partially accommodating a push spring 26 are provided at the ends of both the push-pull slide 24 and the contoured nose pad 22 that are close to each other.

[0061] In this embodiment, to limit the maximum floating distance between the contoured nose pad 22 and the push-pull slide 24, a stepped hole 28 is provided on the push-pull slide 24, and a threaded hole is provided on the contoured nose pad 22. These are connected by internal hexagonal screws 27, allowing the contoured nose pad 22 to move relative to the push-pull slide 24 within a defined floating space. Positioning holes on the push-pull slide 24 and the contoured nose pad 22 partially accommodate the push spring 26, providing mounting and positioning for the push spring 26 between the push-pull slide 24 and the contoured nose pad 22.

[0062] In some alternative embodiments: see Figure 4 and Figure 5 As shown, this application embodiment provides a positioning mechanism for a head-mounted near-eye display device. The base 11 of the head-mounted near-eye display device positioning mechanism is also provided with a driving mechanism 29 for pushing and pulling the slide 24 and the contoured nose pad 22 to slide on the base 11. The driving mechanism 29 is connected to the slide 24. The driving mechanism 29 is preferably, but not limited to, any one of a manual elbow clamp, an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder.

[0063] In this embodiment, a drive mechanism 29 is provided on the base 11 to push and pull the slide 24 and the contoured nose pad 22 to slide on the base 11. This drive mechanism 29 controls the forward or backward movement of the slide 24 and the contoured nose pad 22 on the linear guide rail 23 with high precision. The slide 24, through close cooperation, positions the contoured nose pad 22 and the head-mounted device 1. The drive mechanism 29 can be any one of a manual elbow clamp, electric cylinder, pneumatic cylinder, or hydraulic cylinder, allowing for both manual and automatic control, thus improving the efficiency and automation level of the positioning process.

[0064] In some alternative embodiments: see Figure 3 and Figure 4 As shown in the figure, this application embodiment provides a positioning mechanism for a head-mounted near-eye display device. The contour jig groove 13 of the head-mounted near-eye display device positioning mechanism is an upward-opening arc groove, and the depth of the arc groove gradually increases from the edge to the center. A vacuum suction cup 14 is provided in the contour jig groove 13. The vacuum suction cup 14 is used to adsorb the outer cover of the head-mounted device 1. Two vacuum suction cups 14 are provided, and the two vacuum suction cups 14 are symmetrically arranged in the contour jig groove 13.

[0065] In this embodiment, the contour jig groove 13 is designed as an upward-facing arc groove, which facilitates the placement of the head-mounted device 1 within it. The shape of the contour jig groove 13 is adapted to the shape of the front cover of the head-mounted device 1 and they fit together. After the head-mounted device 1 is positioned and clamped within the contour jig groove 13, it is adsorbed by the vacuum suction cup 14. Once the head-mounted device 1 is firmly attached to the vacuum suction cup 14, it is pressed tightly against the contour surface of the contour jig groove 13, further positioning the head-mounted device 1 and ensuring that it does not shake during high-speed movement during testing.

[0066] In some alternative embodiments: see Figures 1 to 3 As shown in the embodiment of this application, a positioning mechanism for a head-mounted near-eye display device is provided. This positioning mechanism also includes a headband clamp 30, which is used to clamp and position the headband 2 of the head-mounted device 1. The headband clamp 30 includes first adjusting plates 31 fixed to both sides of the base 11 or the rear baffle 21 of the fixture and symmetrically arranged. Each first adjusting plate 31 is provided with a headband clamping assembly 33 for clamping the headband 2. A second adjusting plate 32 is connected to one end of the first adjusting plate 31 away from the base 11 or the rear baffle 21. A headband limiting assembly 34 for limiting the headband 2 is provided at the other end of the second adjusting plate 32 away from the first adjusting plate 31.

[0067] Both ends of the first adjusting plate 31 and the second adjusting plate 32 have first elongated holes 311 extending along their length. The first adjusting plate 31 has a second elongated hole 312 for connecting to the headband clamping assembly 33. The length direction of the second elongated hole 312 is perpendicular to the length direction of the first elongated hole 311. The first adjusting plate 31 and the second adjusting plate 32 are connected through the first elongated hole 311, thereby allowing adjustment of their overall length. The headband clamping assembly 33 is connected to the first adjusting plate 31 through the second elongated hole 312, thereby allowing adjustment of its position and height.

[0068] In this embodiment, both the first adjusting plate 31 and the second adjusting plate 32 are rectangular metal plates of a predetermined length. The headband clamping assembly 33 on the first adjusting plate 31 is used to clamp the middle part of the headband 2, and the headband limiting assembly 34 on the second adjusting plate 32 is used to limit the end of the headband 2. The headband clamping assembly 33 and the headband limiting assembly 34 together provide positioning and posture adjustment for the headband 2, so that the headband 2 does not exceed a certain width and height range, and thus the headband 2 will not collide or scratch with other equipment parts during detection movement, so as to avoid injury.

[0069] In some alternative embodiments: see Figures 1 to 3 , Figure 6 and Figure 7As shown, this application embodiment provides a positioning mechanism for a head-mounted near-eye display device. The headband clamping assembly 33 of the headband clamping mechanism includes a headband clamping seat 331. A headband positioning groove 332 for positioning the headband 2 is provided on the headband clamping seat 331. A headband pressure plate 333 for pressing the headband 2 into the headband positioning groove 332 is rotatably connected to the headband clamping seat 331.

[0070] One end of the headband pressure plate 333 is rotatably connected to the headband clamping seat 331 via a hinge. A rubber pad 336 for pressing the headband 2 is fixedly connected to the headband pressure plate 333. The rubber pad 336 presses the headband 2 into the headband positioning groove 332 through its own elastic deformation. A latch 334 is also rotatably connected to the other end of the headband pressure plate 333 for unlocking or locking. A headband adjusting block 335 is provided on one side of the headband positioning groove 332 on the headband clamping seat 331 for adjusting the width of the headband positioning groove 332. The headband adjusting block 335 adjusts the width of the headband positioning groove 332 according to the width of the headband 2, thereby limiting the headband 2 within the headband positioning groove 332.

[0071] The headband limiting assembly 34 includes a vertical adjusting plate 341 connected to the second adjusting plate 32. The vertical adjusting plate 341 has a vertically elongated hole 342, a horizontally elongated hole 343, and an obliquely upward-sloping elongated hole 344. Two spaced-apart headband limiting posts are vertically connected to the vertical adjusting plate 341. Each headband limiting post includes a rotating shaft 345 connected to the vertical adjusting plate 341. Two spaced-apart bearings 346 are connected to the rotating shaft 345, and a spacer 347 is provided between the two bearings 346.

[0072] The vertical elongated hole 342, the horizontal elongated hole 343, and the obliquely upward-sloping elongated hole 344 on the vertical adjustment plate 341 are all used to adjust the relative position of the two headband limiting posts, so that the headband limiting posts and the headband 2 come into contact, thereby changing the end posture of the headband 2 to an upward-curving state. During this process, the headband limiting posts can rotate flexibly and roll into contact with the headband 2. The second adjustment plate 32 is also provided with a screen dotting module 40 for electrically connecting the head-mounted device 1 to illuminate the near-eye display of the head-mounted device 1.

[0073] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, 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, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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 between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0074] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0075] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A positioning mechanism for a head-mounted near-eye display device, characterized in that, include: The positioning platform (10) includes a base (11), and a head-mounted device contour positioning seat (12) is fixedly connected to the top of the base (11). The top of the head-mounted device contour positioning seat (12) is provided with a contour jig groove (13) for positioning the head-mounted device (1). The shape of the contour jig groove (13) is adapted to the outer cover of the head-mounted device (1). Positioning fixture (20), the positioning fixture (20) includes a fixture back baffle (21) located on one side of the contour jig groove (13) and fixedly connected to the base (11), and a contour nose pad (22) located on the other side of the contour jig groove (13) and slidably connected to the base (11), the shape of the contour nose pad (22) being adapted to the nose pad of the head-mounted device (1); A push-pull slide (24) is slidably connected to the base (11), and the push-pull slide (24) is floatingly connected to the contoured nose pad (22). The contoured nose pad (22) is located between the push-pull slide (24) and the head-mounted device contoured positioning seat (12). The contoured nose pad (22) is fixedly connected to a guide rod (25) that is slidably connected to the push-pull slide (24), and the push-pull slide (24) is connected to a push spring (26) that pushes the contoured nose pad (22) away from the push-pull slide (24). The push-pull slide (24) has a stepped hole (28), the contoured nose plate (22) has a threaded hole, and the stepped hole (28) has an internal hexagonal semi-threaded screw (27) connected to the threaded hole. The internal hexagonal semi-threaded screw (27) slides back and forth in the stepped hole (28) following the contoured nose plate (22), and limits the maximum distance between the contoured nose plate (22) and the push-pull slide (24); The push-pull slide (24) and the contoured nose plate (22) are both provided with positioning holes at their respective ends that partially accommodate the push spring (26).

2. The positioning mechanism for a head-mounted near-eye display device as described in claim 1, characterized in that: The base (11) is provided with a linear guide rail (23) that is slidably connected to the contoured nose pad (22). The contoured nose pad (22) moves on the linear guide rail (23) in a direction that approaches or moves away from the head-mounted device contoured positioning seat (12). The contoured nose pad (22) is a conical or arc-shaped plate structure, and the width of the contoured nose pad (22) gradually decreases toward the contoured positioning seat (12) of the head-mounted device.

3. The positioning mechanism for a head-mounted near-eye display device as described in claim 1, characterized in that: The base (11) is also provided with a drive mechanism (29) for pushing the push-pull slide (24) and the contoured nose plate (22) to slide on the base (11). The drive mechanism (29) is connected to the push-pull slide (24). The drive mechanism (29) is any one of manual elbow clamp, electric cylinder, air cylinder, and oil cylinder.

4. The positioning mechanism for a head-mounted near-eye display device as described in claim 1, characterized in that: The contour jig groove (13) is an arc groove with the opening facing upward. A vacuum suction cup (14) is provided in the contour jig groove (13). The vacuum suction cup (14) is used to adsorb the outer cover of the head-mounted device (1). There are two vacuum suction cups (14), and the two vacuum suction cups (14) are symmetrically arranged in the contour jig groove (13).

5. The positioning mechanism for a head-mounted near-eye display device as described in claim 1, characterized in that: It also includes a headband clamp (30), which includes a first adjusting plate (31) fixed on both sides of the base (11) or the fixture rear baffle (21) and symmetrically arranged. Each of the first adjusting plates (31) is provided with a headband clamping assembly (33) for clamping the headband (2). The first adjusting plate (31) is connected to a second adjusting plate (32) at one end away from the base (11) or the fixture back baffle (21). The second adjusting plate (32) is provided with a headband limiting component (34) for limiting the headband (2) at one end away from the first adjusting plate (31).

6. The positioning mechanism for a head-mounted near-eye display device as described in claim 5, characterized in that: Both ends of the first adjusting plate (31) and the second adjusting plate (32) are provided with a first elongated hole (311) extending along the length direction of the first adjusting plate (31) and the second adjusting plate (32). The first adjusting plate (31) is provided with a second elongated hole (312) connecting the headband clamping assembly (33). The length direction of the second elongated hole (312) is perpendicular to the length direction of the first elongated hole (311).

7. A positioning mechanism for a head-mounted near-eye display device as described in claim 5 or 6, characterized in that: The headband clamping assembly (33) includes a headband clamping seat (331), which has a headband positioning groove (332) for positioning the headband (2), and a headband pressure plate (333) for pressing the headband (2) into the headband positioning groove (332) is rotatably connected to the headband clamping seat (331). The headband clamping seat (331) is also rotatably connected to a buckle (334) for unlocking or locking the headband pressure plate (333). The headband clamping seat (331) is provided with a headband adjusting block (335) located on one side of the headband positioning groove (332) for adjusting the width of the headband positioning groove (332).

8. The positioning mechanism for a head-mounted near-eye display device as described in claim 5, characterized in that: The headband limiting assembly (34) includes a vertical adjusting plate (341) connected to the second adjusting plate (32). The vertical adjusting plate (341) has a vertical elongated hole (342), a horizontal elongated hole (343), and an oblique elongated hole (344) that is inclined upward. The vertical adjustment plate (341) is vertically connected to two spaced headband limiting posts. Each headband limiting post includes a rotating shaft (345) connected to the vertical adjustment plate (341). The rotating shaft (345) is connected to two spaced bearings (346), and a spacer (347) is provided between the two bearings (346).

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