VR lens positioning device based on contour measurement

Abstract

The utility model discloses a VR lens positioning device based on contour measurement. The device comprises a first carrier for positioning the reverse side of the VR lens and a second carrier for positioning the front side of the VR lens, the first adsorption jacking mechanism is arranged below the first carrier, extends into the first carrier, adsorbs the VR lens and jacks the VR lens upwards; the second adsorption jacking mechanism is arranged below the second carrier, extends into the second carrier, adsorbs the VR lens and jacks the VR lens upwards; the first carrier is provided with a first profiling groove which is in profiling with the reverse side of the VR lens, and the second carrier is provided with a second profiling groove which is in profiling with the front side of the VR lens. According to the utility model, the profiling positioning of the front and back surfaces of the VR lens can be realized, and the VR lens can be jacked up to extend out of the carrier, so that the contourgraph can conveniently complete the measurement of the circumferential contour and the front and back contour of the VR lens.

Description

Technical field

[0001] The utility model belongs to the technical field of lens contour measurement, and in particular relates to a VR lens positioning device based on contour measurement. [Background Technology]

[0002] VR lenses are all curved surfaces, and their contours need to be measured during production and processing. In order to ensure the accuracy of lens contour measurement, the positioning device used to position the lens is very critical. Therefore, the existing technology has designed a variety of lens positioning devices.

[0003] For example, Chinese Patent Authorization Announcement No. CN218211261U discloses a positioning and measuring device based on a profilometer, which includes a base, a support plate, a slide rail, a slider, and a placement plate. The placement plate is provided with lens slots, and multiple lens slots are spaced apart along the length of the placement plate. The staff places the lenses to be measured in the lens slots of the placement plate in order. After the placement plate is moved into place, the stylus of the profilometer descends to measure the lenses in the placement plate. Chinese Patent Authorization Announcement No. CN210036669U discloses an aspheric profile measurement fixture, which includes a fixed platform detachably mounted on the measuring device and a negative pressure generating mechanism connected to the fixed platform. The work surface of the fixed platform is provided with at least one installation station, and each installation station is provided with at least one through hole around the periphery thereof, which is connected to the negative pressure generating mechanism. The lens to be measured can be adsorbed and fixed at the installation station, thereby achieving positioning of the lens while preventing deformation of the lens.

[0004] Both of the above solutions can achieve the positioning of the lens and measure the surface contour of the lens through a profilometer. However, if they are directly applied to the contour measurement of VR lenses, the following problems will arise: Since the designed VR lens is composed of multiple layers of lenses, and the contours of each layer of lenses are different, in addition to measuring the surface contour of the VR lens, the circumferential contour of the VR lens also needs to be measured. In the above two solutions, in order to ensure the stable positioning of the lens, the mounting groove for placing the lens is generally set to imitate the outer periphery of the lens. When the lens is placed in the mounting groove, the circumference of the lens is conformed to the mounting groove, and the contour measurement of the circumference of the lens cannot be achieved. Therefore, the above two lens positioning solutions cannot achieve the measurement of the circumferential contour of the VR lens.

[0005] Therefore, it is necessary to provide a VR lens positioning device based on contour measurement to solve the above technical problems. [Utility Model Content]

[0006] The main purpose of the present utility model is to provide a VR lens positioning device based on contour measurement, which can realize the profiling positioning of the front and back sides of the VR lens and can lift the VR lens out of the carrier, so as to facilitate the contour meter to complete the measurement of the circumferential contour and the front and back contour of the VR lens.

[0007] The present utility model realizes the above purpose through the following technical solutions: A VR lens positioning device based on contour measurement, which includes a first carrier for positioning the back side of the VR lens, a second carrier for positioning the front side of the VR lens, a first adsorption and lifting mechanism arranged below the first carrier and extending into the first carrier to adsorb and lift the VR lens upward, and a second adsorption and lifting mechanism arranged below the second carrier and extending into the second carrier to adsorb and lift the VR lens upward. A first profiling groove conforming to the back side of the VR lens is arranged on the first carrier, and a second profiling groove conforming to the front side of the VR lens is arranged on the second carrier.

[0008] Furthermore, it also includes a mounting rack for mounting the first carrier and the second carrier. There are two mounting racks arranged side by side, and the first carrier and the second carrier are respectively mounted on the upper ends of the two mounting racks.

[0009] Furthermore, the mounting rack includes a horizontal mounting plate and several support columns for supporting the mounting plate.

[0010] Furthermore, the first adsorption and lifting mechanism and the second adsorption and lifting mechanism have the same structure and both include an adsorption and lifting module for lifting the VR lens and a lifting driving part for driving the adsorption and lifting module to move up and down.

[0011] Furthermore, the adsorption and lifting module includes a lifting block located above the mounting plate, a support plate located below the mounting plate, and several connecting rods connecting the lifting block and the support plate and movably arranged up and down on the mounting plate.

[0012] Furthermore, avoidance through holes for avoiding the lifting block are arranged in the middle of the first carrier and the second carrier.

[0013] Furthermore, the output shaft end of the lifting driving part is connected to the support plate.

[0014] Furthermore, mounting through holes for mounting the connecting rods are arranged on the mounting plate, and the connecting rods are movably arranged on the mounting plate through self-lubricating bushings.

[0015] Further, a suction cup for adsorbing the lens is provided on the lifting block, a gas passage communicating with the suction cup is provided inside the mounting plate, and an air port for allowing gas to enter and exit the gas passage is provided on one side of the mounting plate.

[0016] Compared with the prior art, the beneficial effects of the VR lens positioning device based on contour measurement of the present utility model are as follows: The first carrier provided can perform profiling positioning on the reverse side of the VR lens, and the second carrier provided can perform profiling positioning on the front side of the VR lens. Therefore, this solution can complete the profiling positioning of the front and back sides of the VR lens; moreover, the first adsorption and lifting mechanism can extend into the first carrier to adsorb the VR lens and lift the VR lens upward to extend out of the first carrier, and the second adsorption and lifting mechanism can extend into the second carrier to adsorb the VR lens and lift the VR lens upward to extend out of the second carrier. After lifting the VR lens upward, there is no obstruction around the circumference of the VR lens, and a contour meter (not shown in the figure) can directly perform circumferential contour measurement. Therefore, this solution can realize profiling positioning of the front and back sides of the VR lens and can lift the VR lens upward to extend out of the carrier, thus facilitating the contour meter (not shown in the figure) to complete the measurement of the circumferential contour and the front and back side contours of the VR lens.

BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of the VR lens positioning device based on contour measurement according to an embodiment of the present utility model;

[0018] Figure 2 is a three-dimensional structural schematic diagram of the first adsorption and lifting mechanism according to an embodiment of the present utility model;

[0019] Figure 3 is a three-dimensional structural schematic diagram of the adsorption and lifting module according to an embodiment of the present utility model;

[0020] Figure 4 is a three-dimensional structural schematic diagram of the first carrier according to an embodiment of the present utility model;

[0021] Figure 5 is a three-dimensional structural schematic diagram of the mounting plate according to an embodiment of the present utility model;

[0022] The numbers in the figure represent:

[0023] 100 - VR lens positioning device based on contour measurement;

[0024] 1 - First carrier, 11 - First profiling groove, 12 - Avoidance through hole;

[0025] 2 - Second carrier, 21 - Second profiling groove;

[0026] 3 - First adsorption and lifting mechanism, 31 - Adsorption and lifting module, 311 - Lifting block, 312 - Support plate, 313 - Connecting rod, 314 - Suction cup, 315 - Self - lubricating bushing, 32 - Lifting drive;

[0027] 4 - Second adsorption and lifting mechanism;

[0028] 5 - Mounting frame, 51 - Mounting plate, 511 - Mounting through - hole, 512 - Air port, 513 - Gas channel, 52 - Support column.

Specific implementation manner

[0029] Since the VR lens is assembled by multiple layers of lenses, and the structure and contour of each layer of lens are not completely the same, it is necessary to measure the front, back, and circumferential contours of the VR lens. The VR lens positioning device 100 based on contour measurement provided by this solution can perform profiling positioning on the front and back of the VR lens and lift the VR lens upward to extend out of the carrier, so as to facilitate a profiler (not shown in the figure) to complete the measurement of the circumferential contour and the front and back contours of the VR lens.

[0030] Please refer to Figures 1 - 5 , this embodiment is a VR lens positioning device based on contour measurement. The VR lens positioning device 100 based on contour measurement includes a first carrier 1 for positioning the back of the VR lens, a second carrier 2 for positioning the front of the VR lens, a first adsorption and lifting mechanism 3 disposed below the first carrier 1 and extending into the first carrier 1 to adsorb and lift the VR lens upward, and a second adsorption and lifting mechanism 4 disposed below the second carrier 2 and extending into the second carrier 2 to adsorb and lift the VR lens upward. A first profiling groove 11 conforming to the back of the VR lens is provided on the first carrier 1, and a second profiling groove 21 conforming to the front of the VR lens is provided on the second carrier 2.

[0031] The VR lens positioning device 100 based on contour measurement further includes a mounting frame 5 for mounting the first carrier 1 and the second carrier 2. There are two mounting frames 5 arranged side by side, and the first carrier 1 and the second carrier 2 are respectively mounted on the upper ends of the two mounting frames 5.

[0032] The mounting frame 5 includes a horizontal mounting plate 51 and several support columns 52 for supporting the mounting plate 51.

[0033] The first adsorption and lifting mechanism 3 and the second adsorption and lifting mechanism 4 have the same structure and both include an adsorption and lifting module 31 for lifting the VR lens and a lifting drive 32 for driving the adsorption and lifting module 31 to move up and down.

[0034] The adsorption and lifting module 31 includes a lifting block 311 located above the mounting plate 51, a support plate 312 located below the mounting plate 51, and a plurality of connecting rods 313 that connect the lifting block 311 and the support plate 312 and are vertically movably arranged on the mounting plate 51.

[0035] Avoidance through holes 12 for avoiding the lifting block 311 are provided in the middle of the first carrier 1 and the second carrier 2. The size of the avoidance through holes 12 is smaller than the sizes of the first profiling groove 11 and the second profiling groove 21, so that the first profiling groove 11 and the second profiling groove 21 can perform profiling positioning on the VR lens.

[0036] The output shaft end of the lifting driving member 32 is connected to the support plate 312, and the lifting driving member 32 drives the support plate 312 to drive the lifting block 311 to move upward, thereby jacking up the VR lens.

[0037] Mounting through holes 511 for mounting the connecting rods 313 are provided on the mounting plate 51. In order to reduce the frictional resistance of the vertical movement of the connecting rods 313, the connecting rods 313 are movably arranged on the mounting plate 51 through self-lubricating bushings 315.

[0038] A suction cup 314 for adsorbing the lens is provided on the lifting block 311. The upper surface of the suction cup 314, the upper surface of the lifting block 311, and the bottom of the first profiling groove 11 are flush with each other. Correspondingly, the upper surface of the suction cup 314, the upper surface of the lifting block 311, and the bottom of the second profiling groove 21 are flush with each other. So that when the VR lens is placed on the first carrier 1 and the second carrier 2, after the suction cup 314 adsorbs the VR lens, the lifting driving member 32 can drive the support plate 312 to drive the lifting block 311 to move upward, thereby jacking up the VR lens. The suction cup 314 provided adsorbs the VR lens, which can ensure the stability during VR lifting.

[0039] A gas passage 513 communicating with the suction cup 314 is provided inside the mounting plate 51, and an air port 512 for gas to enter and exit the gas passage 513 is provided on one side of the mounting plate 51.

[0040] When applying a VR lens positioning device 100 based on contour measurement provided by this solution, manually or by a manipulator, first place the VR lens face-down into the first profiling groove 11 of the first carrier 1. The vacuum valve (not shown in the figure) is connected to the air port 512. After evacuating the air, the suction cup 314 adsorbs the back of the VR lens. The lifting driving member 32 can drive the support plate 312 to drive the lifting block 311 to move upward, thereby lifting the VR lens upward so that the VR lens is completely pushed out of the first carrier 1 until it is higher than the first carrier 1. At this time, a profiler (not shown in the figure) can perform contour measurement on the front and circumference of the VR lens. After the measurement is completed, the lifting driving member 32 can drive the support plate 312 to drive the lifting block 311 to move downward, so that the VR lens is placed in the first profiling groove 11 of the first carrier 1. Break the vacuum, and manually or by a manipulator take out the VR lens and turn it over so that the VR lens is placed face-down in the first profiling groove 21 of the second carrier 2. Take the same actions as above, and the profiler (not shown in the figure) completes the contour measurement of the back and circumference of the VR lens. Therefore, the VR lens positioning device 100 based on contour measurement provided by this solution can not only achieve the positioning of the front and back sides of the VR lens, but also be provided with an adsorption and lifting mechanism for lifting the lens out of the carrier, so as to facilitate the profiler (not shown in the figure) to complete the measurement of the circumferential contour and the front and back contour of the VR lens.

[0041] The above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the creative concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A VR lens positioning device based on contour measurement, characterized in that: It includes a first carrier for positioning the reverse side of the VR lens, a second carrier for positioning the front side of the VR lens, a first adsorption and lifting mechanism disposed below the first carrier and extending into the first carrier to adsorb and lift the VR lens upward, and a second adsorption and lifting mechanism disposed below the second carrier and extending into the second carrier to adsorb and lift the VR lens upward. A first profiling groove conforming to the reverse side of the VR lens is provided on the first carrier, and a second profiling groove conforming to the front side of the VR lens is provided on the second carrier.

2. The VR lens positioning device based on contour measurement according to claim 1, characterized in that: It further includes a mounting bracket for mounting the first carrier and the second carrier. There are two mounting brackets arranged side by side, and the first carrier and the second carrier are respectively mounted on the upper ends of the two mounting brackets.

3. The VR lens positioning device based on contour measurement according to claim 2, wherein: The mounting bracket includes a horizontal mounting plate and several support columns for supporting the mounting plate.

4. The VR lens positioning device based on contour measurement according to claim 3, characterized in that: The first adsorption and lifting mechanism and the second adsorption and lifting mechanism have the same structure and both include an adsorption and lifting module for lifting the VR lens and a lifting driving member for driving the adsorption and lifting module to move up and down.

5. The VR lens positioning device based on contour measurement according to claim 4, characterized in that: The adsorption and lifting module includes a lifting block located above the mounting plate, a support plate located below the mounting plate, and several connecting rods connecting the lifting block and the support plate and movably arranged up and down on the mounting plate.

6. The VR lens positioning device based on contour measurement according to claim 5, characterized in that: Avoidance through holes for avoiding the lifting block are provided in the middle of both the first carrier and the second carrier.

7. The VR lens positioning device based on contour measurement according to claim 5, characterized in that: The output shaft end of the lifting driving member is connected to the support plate.

8. The VR lens positioning device based on contour measurement according to claim 5, wherein: Mounting through holes for mounting the connecting rods are provided on the mounting plate, and the connecting rods are movably arranged on the mounting plate through self-lubricating bushings.

9. The VR lens positioning device based on contour measurement according to claim 5, characterized in that: A suction cup for adsorbing the lens is provided on the lifting block. A gas passage communicating with the suction cup is provided inside the mounting plate, and an air port for allowing gas to enter and exit the gas passage is provided on one side of the mounting plate.

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