Lens assembly detection device

Abstract

The utility model belongs to the technical field of lens assembly, and discloses a lens assembly detection device. The lens assembly detection device comprises a height detection platform, a lens positioning clamp, a support and an altimeter. Wherein the lens positioning clamp is arranged on the height detection platform in a position adjustable manner, and a fixing groove for fixing a lens is formed in the lens positioning clamp; the bracket is arranged on the height detection platform; the altimeter is arranged on the support, located above the lens positioning clamp and used for measuring the center height of the first lens of the lens, and the position of the altimeter in the vertical direction is adjustable. According to the lens assembly detection device, a detection result can be obtained through one-time detection, and the detection efficiency and the detection precision are high.

Description

TECHNICAL FIELD

[0001] The utility model relates to lens assembly technical field especially relates to a lens assembly detection device. BACKGROUND

[0002] In the assembly process of optical lens, the first lens, the spacer ring and the gasket are pressed into the frame in sequence by the suction pen, and in the assembly process, due to the interference of factors such as machine table and air pressure fluctuation, the first lens, the spacer ring and the gasket may not be assembled in place, resulting in problems such as gap in the lens, the first lens floating and affecting the quality of the lens. Therefore, in order to control the quality of the lens, the center height of the first lens of the assembled lens is generally detected to confirm whether it is within the specified range to remove defective products.

[0003] At present, the center height of the first lens is detected by manually holding the lens under the height gauge, and since the ranging probe of the height gauge cannot be directly opposite the center of the first lens, the position of the lens needs to be manually moved several times, and the maximum value is measured several times. This detection method needs to be measured several times, and the detection efficiency is low, and the detection accuracy is also low.

[0004] Therefore, it is urgent to provide a lens assembly detection device to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] The utility model provides a kind of lens assembly detection device, and detection result can be obtained by once detection, and detection efficiency and detection accuracy are higher.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The lens assembly detection device comprises:

[0008] height detection platform;

[0009] lens positioning fixture, position is adjustably set on the height detection platform, and the lens positioning fixture is provided with fixed slot for fixing lens;

[0010] support, set on the height detection platform;

[0011] height gauge, set on the support and located above the lens positioning fixture, for measuring the center height of the first lens of the lens, and the position of the height gauge in vertical direction is adjustable.

[0012] Optionally, the lens positioning fixture comprises:

[0013] A base, wherein a clamp body is provided on the base, an outer peripheral wall of the clamp body is provided with an external thread, and a plurality of elastic walls are provided at intervals along the circumference of the clamp body on the top of the clamp body, the plurality of elastic walls forming the fixing groove;

[0014] A locking sleeve is sleeved on the outside of the clamp body and the fixing groove. An internal thread is provided on the inner circumferential wall of one end of the locking sleeve, and a locking flange is provided on the other end. The locking flange abuts against the multiple elastic walls. The internal thread is connected to the external thread on the clamp body. By screwing the locking sleeve, the multiple elastic walls can be moved closer or farther away from each other through the locking flange to adjust the inner diameter of the fixing groove.

[0015] Optionally, the elastic wall is provided with an adjusting inclined surface cooperating with the locking flange, and the thickness of the elastic wall at the position of the adjusting inclined surface gradually decreases along the axial direction of the fixing groove close to the opening of the fixing groove.

[0016] Optionally, the lens assembly detection device also includes an XY-axis fine-tuning platform, which is arranged on the height detection platform, and the lens positioning fixture is arranged on the XY-axis fine-tuning platform, and the XY-axis fine-tuning platform is used to adjust the position of the lens positioning fixture along the X-axis and Y-axis directions on the height detection platform.

[0017] Optionally, the XY-axis fine-tuning platform includes:

[0018] A slide seat is provided on the height detection platform;

[0019] A first slider, slidably connected to the slide seat along the X-axis direction;

[0020] A second slider is connected to the upper part of the first slider in a sliding manner along the Y-axis direction, and the lens positioning fixture is fixed on the second slider;

[0021] a first driving member, disposed on the slide, wherein an output end of the first driving member is connected to the first slider, and is used to drive the first slider to move along the X-axis direction;

[0022] The second driving member is provided on the first slider, and the output end of the second driving member is connected to the second slider for driving the second slider to move along the Y-axis direction.

[0023] Optionally, a first adjustment plate is provided on the first slider, and the output end of the first driving member is connected to the first adjustment plate; and / or a second adjustment plate is provided on the second slider, and the output end of the second driving member is connected to the second adjustment plate.

[0024] Optionally, the XY-axis fine-tuning platform also includes a first locking limit assembly and a second locking limit assembly, wherein the first locking limit assembly is used to lock the first slider on the slide to limit the first slider from sliding on the slide, and the second locking limit assembly is used to lock the second slider on the first slider to limit the second slider from sliding on the first slider.

[0025] Optionally, the first locking and limiting assembly includes a first locking plate and a first locking bolt, one end of the first locking plate is connected to the slide seat, and the other end is provided with a first long hole extending along the X-axis direction, and the first locking bolt is passed through the first long hole and is connected to the first threaded hole on the first slider; and / or, the second locking and limiting assembly includes a second locking plate and a second locking bolt, one end of the second locking plate is connected to the first slider, and the other end is provided with a second long hole extending along the Y-axis direction, and the second locking bolt is passed through the second long hole and is connected to the second threaded hole on the second slider.

[0026] Optionally, the bracket includes:

[0027] A support rod is provided on the height detection platform and extends in a vertical direction;

[0028] A mounting frame, one end of which is connected to the support rod, and the position of the mounting frame on the support rod is adjustable, and the other end of the mounting frame is connected to the altimeter.

[0029] Optionally, two first elastic clamping arms are provided at one end of the mounting bracket, the two first elastic clamping arms form a first clamping hole, the support rod is passed through the first clamping hole, and the ends of the two first elastic clamping arms are connected by a third locking bolt; and / or, two second elastic clamping arms are provided at the second end of the mounting bracket, the two second elastic clamping arms form a second clamping hole, the ranging probe of the altimeter is passed through the second clamping hole, and the ends of the two second elastic clamping arms are connected by a fourth locking bolt.

[0030] Beneficial effects of the utility model:

[0031] The utility model provides a lens assembly detection device, comprising a height detection platform, a lens positioning fixture, a bracket, and an altimeter. Before detection, the position of the lens positioning fixture on the height detection platform is first adjusted so that the center of the fixed groove on the lens positioning fixture is aligned with the distance measuring probe of the altimeter; then the lens positioning fixture is fixed; then the altimeter is lowered so that the distance measuring probe of the altimeter rests on the bottom surface of the fixed groove, and the altimeter value is reset to zero using the bottom surface as the height measurement reference surface; finally, the assembled lens to be detected is fixed in the fixed groove, the altimeter is lowered until the distance measuring probe contacts the center of the first lens of the lens, and the measurement result of the altimeter is read, which is the center height of the first lens. The lens assembly detection device can ensure that the center of the lens fixed in the fixed groove of the lens positioning fixture is aligned with the distance measuring probe of the altimeter by simply adjusting the position between the lens positioning fixture and the altimeter. This can not only ensure the accuracy of the measurement result, but also eliminate the need to repeatedly move the lens for multiple measurements, thereby improving detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0033] Figure 1 It is a structural schematic diagram of a lens assembly detection device provided by an embodiment of the present utility model;

[0034] Figure 2 This is a schematic structural diagram of a lens positioning fixture provided by an embodiment of the present utility model;

[0035] Figure 3 This is an exploded schematic diagram of a lens positioning fixture provided by an embodiment of the present utility model;

[0036] Figure 4 This is an assembly diagram of the XY-axis fine-tuning platform and the height detection platform from one perspective provided by an embodiment of the present utility model;

[0037] Figure 5 This is an assembly diagram of the XY-axis fine-tuning platform and the height detection platform from another perspective provided by an embodiment of the present invention;

[0038] Figure 6 This is an assembly diagram of the XY-axis fine-tuning platform and the height detection platform from another perspective provided by an embodiment of the present utility model.

[0039] In the picture:

[0040] 10. Lens;

[0041] 100. Height detection platform;

[0042] 200, lens positioning fixture; 201, fixing groove; 210, base; 220, fixture body; 221, elastic wall; 2211, adjustment slope; 230, locking sleeve; 231, locking flange;

[0043] 300, bracket; 310, support rod; 320, mounting bracket; 321, first elastic clamping arm; 322, third locking bolt; 323, second elastic clamping arm; 324, fourth locking bolt;

[0044] 400, altimeter; 410, ranging probe;

[0045] 500, XY-axis fine-tuning platform; 510, slide; 520, first slider; 521, first adjustment plate; 530, second slider; 531, second adjustment plate; 540, first driving member; 550, second driving member; 560, first locking limit assembly; 561, first locking plate; 5611, first long hole; 562, first locking bolt; 570, second locking limit assembly; 571, second locking plate; 5711, second long hole; 572, second locking bolt; 580, first mounting plate; 590, second mounting plate. DETAILED DESCRIPTION

[0046] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0047] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0048] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0049] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0050] This embodiment provides a lens assembly detection device that can obtain detection results through a single detection, with high detection efficiency and detection accuracy.

[0051] Specifically, if Figures 1-3 As shown, the lens assembly detection device includes a height detection platform 100 , a lens positioning fixture 200 , a bracket 300 and a height meter 400 .

[0052] The lens positioning fixture 200 is adjustably mounted on the height detection platform 100 and is provided with a fixing slot 201 for securing the lens 10. A bracket 300 is mounted on the height detection platform 100, and an altimeter 400 is mounted on the bracket 300 and positioned above the lens positioning fixture 200. The altimeter 400 is used to measure the center height of the first lens element of the lens 10. The vertical position of the altimeter 400 is adjustable.

[0053] It is worth noting that, in this embodiment, the vertical direction is Figure 1 The direction shown by the Z axis.

[0054] It is worth noting that the structure of the altimeter 400 is prior art, and therefore, its specific structure will not be described in detail.

[0055] The method of using the lens assembly detection device is as follows:

[0056] First, adjust the position of the lens positioning fixture 200 on the height detection platform 100 so that the center of the fixing groove 201 on the lens positioning fixture 200 is aligned with the ranging probe 410 of the altimeter 400;

[0057] Then, fix the lens positioning fixture 200;

[0058] Then, the altimeter 400 is lowered so that the ranging probe 410 of the altimeter 400 rests against the bottom surface of the fixing groove 201 , and the bottom surface is used as the height measurement reference surface, and the value of the altimeter 400 is reset to zero;

[0059] Finally, the assembled lens 10 to be tested is fixed in the fixing groove 201, and the altimeter 400 is lowered until the ranging probe 410 contacts the center of the first lens of the lens 10, and the measurement result of the altimeter 400 is read, which is the center height of the first lens.

[0060] The lens assembly inspection device provided in this embodiment only requires adjusting the position between the lens positioning fixture 200 and the altimeter 400 to ensure that the center of the lens 10, which is fixed in the fixing slot 201 of the lens positioning fixture 200, is aligned with the distance measuring probe 410 of the altimeter 400. This arrangement ensures the accuracy of the measurement results and eliminates the need to repeatedly move the lens 10 for multiple measurements, thereby improving inspection efficiency.

[0061] Further, see Figure 2 and Figure 3 In this embodiment, the lens positioning fixture 200 includes a base 210 and a locking sleeve 230. A fixture body 220 is mounted on the base 210. The outer peripheral wall of the fixture body 220 is provided with external threads. A plurality of elastic walls 221 are spaced apart along the circumference of the fixture body 220 at the top of the fixture body 220. These elastic walls 221 form a fixing groove 201. The locking sleeve 230 is sleeved over the fixture body 220 and the fixing groove 201. One end of the locking sleeve 230 has an inner peripheral wall provided with internal threads, and the other end has a locking flange 231. The locking flange 231 abuts against the elastic walls 221. The internal threads connect to the external threads on the fixture body 220. Turning the locking sleeve 230 can move the elastic walls 221 closer together or further apart, thereby adjusting the inner diameter of the fixing groove 201.

[0062] The method of fixing the lens 10 using the lens positioning fixture 200 is as follows:

[0063] First, loosen the locking sleeve 230 so that the multiple elastic walls 221 are separated from each other, ensuring a larger inner diameter of the fixing groove 201;

[0064] Then, insert one end of the lens 10 to be tested into the fixing slot 201;

[0065] Finally, the locking sleeve 230 is tightened to move the multiple elastic walls 221 closer to each other, so that the multiple elastic walls 221 clamp and fix the lens 10 .

[0066] The lens positioning fixture 200 fixes the lens 10 in a relatively simple manner. While ensuring reliable fixation of the lens 10 , it is applicable to lenses 10 of different sizes and has high universality.

[0067] Optionally, continue with Figure 3 The elastic wall 221 is provided with an adjustment bevel 2211 that mates with the locking flange 231. Along the axial direction of the fixing groove 201, the thickness of the elastic wall 221 gradually decreases at the location of the adjustment bevel 2211 as it approaches the opening of the fixing groove 201. Since the inner diameter of the locking flange 231 remains unchanged, if the locking flange 231 abuts a location where the elastic wall 221 is thinner, the inner diameter of the fixing groove 201 is larger. If the locking flange 231 abuts a location where the elastic wall 221 is thicker, the inner diameter of the fixing groove 201 is smaller. Specifically, when the locking flange 231 abuts a location where the adjustment bevel 2211 is closer to the opening of the fixing groove 201, the inner diameter of the fixing groove 201 enclosed by the multiple elastic walls 221 is larger. When the locking flange 231 abuts a location where the adjustment bevel 2211 is closer to the bottom of the fixing groove 201, the inner diameter of the fixing groove 201 enclosed by the multiple elastic walls 221 is smaller.

[0068] Further, see Figure 1 The lens assembly inspection device also includes an XY-axis fine-tuning platform 500, which is disposed on the height detection platform 100. The lens positioning fixture 200 is disposed on the XY-axis fine-tuning platform 500. The XY-axis fine-tuning platform 500 is used to adjust the position of the lens positioning fixture 200 along the X-axis and Y-axis directions on the height detection platform 100. The XY-axis fine-tuning platform 500 allows for easy adjustment of the position of the lens positioning fixture 200 on the height detection platform 100, with high adjustment accuracy.

[0069] Alternatively, as Figures 4-6As shown, the XY-axis fine-tuning platform 500 includes a slide 510, a first slider 520, a second slider 530, a first driving member 540, and a second driving member 550. The slide 510 is disposed on the height detection platform 100. The first slider 520 is slidably connected to the slide 510 along the X-axis direction. The second slider 530 is slidably connected above the first slider 520 along the Y-axis direction, and the lens positioning fixture 200 is fixed to the second slider 530. The first driving member 540 is disposed on the slide 510, and the output end of the first driving member 540 is connected to the first slider 520 for driving the first slider 520 to move along the X-axis direction. The second driving member 550 is disposed on the first slider 520, and the output end of the second driving member 550 is connected to the second slider 530 for driving the second slider 530 to move along the Y-axis direction.

[0070] When it is necessary to adjust the position of the lens positioning fixture 200 set on the second slider 530 along the X-axis direction, the extension length of the output end of the first driving member 540 is controlled, and the first slider 520 will move along the X-axis relative to the slide 510, and drive the second slider 530 and the lens positioning fixture 200 on the first slider 520 to move synchronously.

[0071] When the position of the lens positioning fixture 200 set on the second slider 530 needs to be adjusted along the Y-axis direction, the extension length of the output end of the second driving member 550 is controlled, and the second slider 530 will move along the Y-axis relative to the first slider 520, and drive the lens positioning fixture 200 thereon to move synchronously.

[0072] The XY axis fine adjustment platform 500 can adjust the lens positioning fixture 200 along the X axis direction and the Y axis direction by controlling the first driving member 540 and the second driving member 550 , which is simple to operate and has high adjustment accuracy.

[0073] Further, see Figure 5 and Figure 6 In this embodiment, a first adjustment plate 521 is provided on the first slider 520, and the output end of the first driving member 540 is connected to the first adjustment plate 521. The connection between the first slider 520 and the first driving member 540 is achieved through the first adjustment plate 521, which has a simple structure and is easy to install.

[0074] Of course, a second adjustment plate 531 may also be provided on the second slider 530, and the output end of the second driving member 550 is connected to the second adjustment plate 531. The arrangement may be based on actual needs, and this application does not impose any specific limitation.

[0075] Optionally, the first driving member 540 can be a micrometer knob, which has a high adjustment accuracy, which is conducive to improving the position adjustment accuracy of the lens positioning fixture 200, and then improving the alignment between the first lens of the lens 10 and the ranging probe 410 of the altimeter 400, so as to improve the accuracy of the detection results.

[0076] Optionally, the second drive may also be a micrometer knob.

[0077] Further, see Figure 4 The XY-axis fine-tuning platform 500 further includes a first locking and limiting assembly 560 and a second locking and limiting assembly 570. The first locking and limiting assembly 560 is used to lock the first slider 520 to prevent the first slider 520 from sliding on the slide 510. The second locking and limiting assembly 570 is used to lock the second slider 530 to prevent the second slider 530 from sliding on the first slider 520. By providing the first locking and limiting assembly 560 and the second locking and limiting assembly 570, the positions of the first slider 520 and the second slider 530 can be kept stationary after the positions of the first slider 520 and the second slider 530 are adjusted, thereby reducing the risk of positional deviation of the lens positioning fixture 200 during the detection process, thereby improving the accuracy of the detection results.

[0078] Optionally, continue with Figure 4 In one possible embodiment, the first locking and limiting assembly 560 includes a first locking plate 561 and a first locking bolt 562. One end of the first locking plate 561 is connected to the slide 510, and the other end is provided with a first elongated hole 5611 extending along the X-axis. The first locking bolt 562 passes through the first elongated hole 5611 and is connected to the first threaded hole in the first slider 520. To adjust the position of the first slider 520, the first locking bolt 562 is loosened. The first driving member 540 is then controlled to push the first slider 520 to the desired position, and the first locking bolt 562 is then tightened to secure the first slider 520. This results in a simple structure and easy operation.

[0079] Optionally, continue with Figure 4 In another possible embodiment, the second locking and limiting assembly 570 includes a second locking plate 571 and a second locking bolt 572. One end of the second locking plate 571 is connected to the first slider 520, and the other end is provided with a second elongated hole 5711 extending along the Y-axis. The second locking bolt 572 passes through the second elongated hole 5711 and is connected to the second threaded hole in the second slider 530. When the position of the second slider 530 needs to be adjusted, the second locking bolt 572 is loosened. The second driving member 550 is then controlled to push the second slider 530 to the desired position, and the second locking bolt 572 is then tightened to secure the second slider 530. This provides a simple and convenient operation.

[0080] Optionally, continue with Figure 4 In this embodiment, a first mounting plate 580 is detachably connected to the height detection platform 100, and the slide 510 is detachably mounted on the first mounting plate 580. A second mounting plate 590 is detachably mounted on the top of the second slider 530, and the lens positioning fixture 200 is detachably mounted on the second mounting plate 590. The connection between the XY-axis fine-tuning platform 500 and the height detection platform 100 is achieved through the first mounting plate 580, which has a simple structure and is easy to install and remove. The connection between the lens positioning fixture 200 and the XY-axis fine-tuning platform 500 is achieved through the second mounting plate 590, which has a simple structure and is easy to install and remove.

[0081] Optionally, the first mounting plate 580 and the height detection platform 100, the slide 510 and the first mounting plate 580, the second mounting plate 590 and the second slider 530, and the lens positioning fixture 200 and the second mounting plate 590 can be connected by bolts. The bolt connection structure is simple and easy to install and disassemble.

[0082] Further, see Figure 1 The bracket 300 includes a support rod 310 and a mounting frame 320. The support rod 310 is set on the height detection platform 100 and extends in the vertical direction ( Figure 1 Mounting bracket 320 extends in the direction indicated by the Z-axis. One end of mounting bracket 320 is connected to support rod 310, and its position on support rod 310 is adjustable. The other end of mounting bracket 320 is connected to altimeter 400. To adjust the vertical position of altimeter 400, only the position of mounting bracket 320 on support rod 310 needs to be adjusted. This simple structure provides reliable position adjustment of altimeter 400.

[0083] Optionally, continue with Figure 1 In one possible embodiment, one end of the mounting bracket 320 is provided with two first elastic clamping arms 321. The two first elastic clamping arms 321 surround a first clamping hole. The support rod 310 is passed through the first clamping hole. The ends of the two first elastic clamping arms 321 are connected by a third locking bolt 322. When the position of the mounting bracket 320 on the support rod 310 needs to be adjusted, the third locking bolt 322 is loosened to increase the distance between the two first elastic clamping arms 321. At this time, the mounting bracket 320 can be held and pushed to slide on the support rod 310. After the position of the mounting bracket 320 is adjusted, the third locking bolt 322 is tightened to clamp the two first elastic clamping arms 321 to the support rod 310. This has a simple structure and is easy to operate.

[0084] Optionally, continue with Figure 1In another possible embodiment, two second elastic clamping arms 323 are provided at the second end of the mounting bracket 320. The two second elastic clamping arms 323 form a second clamping hole. The ranging probe 410 of the altimeter 400 is inserted into the second clamping hole. The ends of the two second elastic clamping arms 323 are connected by a fourth locking bolt 324. To install the altimeter 400, loosen the fourth locking bolt 324, insert the ranging probe 410 of the altimeter 400 into the second clamping hole, and tighten the fourth locking bolt 324 until the ranging probe 410 moves into position. The second elastic clamping arms 323 then securely clamp the ranging probe 410. This simple structure facilitates installation and removal of the altimeter 400.

[0085] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A lens assembly detection device, characterized in that: include: Height detection platform (100); A lens positioning fixture (200) is arranged on the height detection platform (100) in an adjustable manner, and a fixing groove (201) for fixing the lens (10) is provided on the lens positioning fixture (200); A bracket (300) is arranged on the height detection platform (100); An altimeter (400) is provided on the bracket (300) and located above the lens positioning fixture (200), and is used to measure the center height of the first lens of the lens (10). The position of the altimeter (400) in the vertical direction is adjustable.

2. The lens assembly detection device according to claim 1, wherein: The lens positioning fixture (200) comprises: A base (210), wherein a clamp body (220) is provided on the base (210), an outer peripheral wall of the clamp body (220) is provided with an external thread, and a plurality of elastic walls (221) are provided at intervals along the circumference of the clamp body (220) at the top of the clamp body (220), and the plurality of elastic walls (221) surround the fixing groove (201); A locking sleeve (230) is sleeved on the outside of the clamp body (220) and the fixing groove (201), an internal thread is provided on the inner peripheral wall of one end of the locking sleeve (230), and a locking flange (231) is provided on the other end, the locking flange (231) abuts against the multiple elastic walls (221), the internal thread is connected to the external thread on the clamp body (220), and by screwing the locking sleeve (230), the multiple elastic walls (221) can be moved closer to or farther away from each other through the locking flange (231) to adjust the inner diameter of the fixing groove (201).

3. The lens assembly detection device according to claim 2, wherein: The elastic wall (221) is provided with an adjusting inclined surface (2211) that cooperates with the locking flange (231), and the thickness of the elastic wall (221) at the position of the adjusting inclined surface (2211) gradually decreases along the axial direction of the fixing groove (201) and approaches the opening of the fixing groove (201).

4. The lens assembly detection device according to claim 1, wherein: The lens assembly detection device further comprises an XY-axis fine-tuning platform (500), wherein the XY-axis fine-tuning platform (500) is arranged on the height detection platform (100), and the lens positioning fixture (200) is arranged on the XY-axis fine-tuning platform (500), and the XY-axis fine-tuning platform (500) is used to adjust the position of the lens positioning fixture (200) on the height detection platform (100) along the X-axis direction and the Y-axis direction.

5. The lens assembly detection device according to claim 4, characterized in that: The XY axis fine adjustment platform (500) comprises: A slide seat (510) is provided on the height detection platform (100); A first sliding block (520) is slidably connected to the sliding seat (510) along the X-axis direction; A second slider (530) is slidably connected to the top of the first slider (520) along the Y-axis direction, and the lens positioning fixture (200) is fixed on the second slider (530); a first driving member (540) disposed on the slide seat (510), wherein an output end of the first driving member (540) is connected to the first slider (520) and is used to drive the first slider (520) to move along the X-axis direction; A second driving member (550) is provided on the first slider (520), and an output end of the second driving member (550) is connected to the second slider (530) for driving the second slider (530) to move along the Y-axis direction.

6. The lens assembly detection device according to claim 5, characterized in that: A first adjustment plate (521) is provided on the first sliding block (520), and an output end of the first driving member (540) is connected to the first adjustment plate (521); And / or, a second adjustment plate (531) is provided on the second sliding block (530), and the output end of the second driving member (550) is connected to the second adjustment plate (531).

7. The lens assembly detection device according to claim 5, characterized in that: The XY-axis fine-tuning platform (500) further includes a first locking and limiting assembly (560) and a second locking and limiting assembly (570), wherein the first locking and limiting assembly (560) is used to lock the first slider (520) on the slide (510) to limit the first slider (520) from sliding on the slide (510), and the second locking and limiting assembly (570) is used to lock the second slider (530) on the first slider (520) to limit the second slider (530) from sliding on the first slider (520).

8. The lens assembly detection device according to claim 7, characterized in that: The first locking and limiting assembly (560) includes a first locking plate (561) and a first locking bolt (562); one end of the first locking plate (561) is connected to the slide seat (510); the other end is provided with a first long hole (5611) extending along the X-axis direction; the first locking bolt (562) is passed through the first long hole (5611) and is connected to the first threaded hole on the first slider (520); And / or, the second locking and limiting assembly (570) includes a second locking plate (571) and a second locking bolt (572), one end of the second locking plate (571) is connected to the first slider (520), and the other end is provided with a second long hole (5711) extending along the Y-axis direction, and the second locking bolt (572) is passed through the second long hole (5711) and is connected to the second threaded hole on the second slider (530).

9. The lens assembly detection device according to claim 1, wherein: The support (300) comprises: A support rod (310) is provided on the height detection platform (100) and extends in a vertical direction; A mounting frame (320), one end of which is connected to the support rod (310), and the position of the mounting frame (320) on the support rod (310) is adjustable, and the other end of the mounting frame (320) is connected to the altimeter (400).

10. The lens assembly detection device according to claim 9, characterized in that: One end of the mounting frame (320) is provided with two first elastic clamping arms (321), the two first elastic clamping arms (321) enclose a first clamping hole, the support rod (310) is passed through the first clamping hole, and the ends of the two first elastic clamping arms (321) are connected by a third locking bolt (322); And / or, the second end of the mounting frame (320) is provided with two second elastic clamping arms (323), the two second elastic clamping arms (323) enclose a second clamping hole, the ranging probe (410) of the altimeter (400) is inserted into the second clamping hole, and the ends of the two second elastic clamping arms (323) are connected by a fourth locking bolt (324).

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