Lens assembling and testing device

Abstract

The utility model provides a lens assembly testing device which comprises a testing assembly, an optical fiber sensing assembly and a processing assembly, one end of the optical fiber sensing assembly is connected with the testing assembly, and the other end of the optical fiber sensing assembly is connected with the processing assembly; the testing assembly comprises a testing platform, a fixing assembly used for installing and fixing a lens to be tested, a driving device, a transmission shaft and a knocking mallet, the fixing assembly and the driving device are arranged on the testing platform, one end of the transmission shaft is connected with the driving device, and the other end of the transmission shaft is connected with the knocking mallet; the driving device drives the transmission shaft to rotate so as to drive the knocking mallet to knock the to-be-detected lens, the optical fiber sensing assembly collects a vibration audio signal and transmits the vibration audio signal to the processing assembly, and the processing assembly processes and analyzes the vibration audio signal. According to the utility model, the driving device is adopted to drive the knocking mallet to knock the to-be-detected lens, and whether the to-be-detected lens is qualified or not is judged by detecting sound generated by knocking through the optical fiber sensor, so that the lens assembly detection efficiency and accuracy are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lens assembly testing, in particular to a lens assembly testing device. Background Art

[0002] With the rapid development of automobile intelligence, intelligent assisted driving systems have been widely used, and the quality and requirements of lenses for monitoring the status of automobiles have been continuously improved. On-board lenses are an important part of advanced driver assistance systems. Drivers can observe the environmental conditions and obstacles around the car through various on-board lenses, and can avoid them in time when observing them to avoid driving accidents. In the process of lens assembly, it is crucial to ensure that each lens is accurately in place, which is the most important check link for lens production and manufacturing. Under vibration, collision or other conditions, if the internal assembly of the lens is not in place or does not meet the assembly requirements, it will directly lead to unclear lens imaging, further causing accidents when driving or using the lens, and even unimaginable consequences. The lens needs to be assembled and tested before leaving the factory to check whether the lens is assembled in place. The traditional lens assembly inspection method is to manually knock on the assembled lens. There is a difference in the sound produced by knocking on the lens that meets the requirements and the lens that does not meet the requirements. The difference in sound is judged by the human ear to determine whether the lens assembly meets the requirements. This traditional manual method requires experienced personnel to conduct testing, and the test efficiency is low and the human error is large. In order to improve the efficiency and accuracy of lens assembly, it is necessary to provide a lens assembly test device. Utility Model Content

[0003] In view of the above problems, the purpose of the present invention is to provide a lens assembly testing device, which can improve the efficiency and accuracy of lens assembly testing.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] The utility model provides a lens assembly test device, comprising a test component, an optical fiber sensing component and a processing component, wherein one end of the optical fiber sensing component is connected to the test component, and the other end is connected to the processing component; the test component comprises a test platform, a fixing component for installing and fixing a lens to be tested, a driving device, a transmission shaft and a knocking hammer, the fixing component and the driving device are arranged on the test platform, one end of the transmission shaft is connected to the driving device, and the other end is connected to the knocking hammer, the driving device drives the transmission shaft to rotate and then drives the knocking hammer to knock the lens to be tested, the optical fiber sensing component collects vibration audio signals and transmits them to the processing component, and the processing component processes and analyzes the vibration audio signals.

[0006] Further preferably, the test assembly further comprises a fixing rod fixed on the test platform, and the fixing rod is rotationally connected to the transmission shaft.

[0007] Further preferably, the optical fiber sensing component includes an optical fiber sensor and a data conversion device, the optical fiber sensor is arranged near the lens to be tested or attached to the lens to be tested, and one end of the data conversion device is connected to the optical fiber sensor and the other end is connected to the processing component.

[0008] Further preferably, the test assembly further comprises an optical fiber fixing seat, the optical fiber fixing seat is rotatably connected to the fixing assembly, and the optical fiber sensor is fixed on the optical fiber fixing seat.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] The utility model adopts a driving device to drive a knocking hammer to knock the lens to be tested, and uses an optical fiber sensor to detect the sound generated by the knocking to judge whether the lens to be tested is qualified, thereby improving the efficiency and accuracy of lens assembly detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a structural schematic diagram of the test assembly in the utility model;

[0014] Illustrations: 10-testing assembly, 100-lens to be tested, 101-testing platform, 102-fixing assembly, 103-driving device, 104-transmission shaft, 105-hammer, 106-fixing rod, 107-optical fiber fixing seat, 20-optical fiber sensing assembly, 21-optical fiber sensor, 22-data conversion device, 30-processing assembly.

[0015] The following specific implementation manner will further illustrate the present utility model in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0016] In order to better understand the utility model, a more detailed description of various aspects of the utility model will be made with reference to the accompanying drawings. It should be understood that these detailed descriptions are only descriptions of embodiments of the utility model, and do not limit the scope of the utility model in any way. Throughout the specification, the same figure numbers refer to the same elements. The expression "and / or" includes any and all combinations of one or more of the associated listed items.

[0017] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0018] It should also be understood that the terms "comprises", "including", "having", "includes" and / or "comprising", when used in this specification, indicate the presence of the stated features, elements and / or components, but do not exclude the presence or addition of one or more other features, elements, components and / or combinations thereof. In addition, when expressions such as "at least one of..." appear after a list of listed features, they modify the entire listed features rather than modifying the individual elements in the list. In addition, when describing embodiments of the present invention, "may" is used to mean "one or more embodiments of the present invention". And, the term "exemplary" is intended to refer to an example or illustration.

[0019] Unless otherwise defined, all terms (including technical terms and scientific terms) used in this article have the same meaning as commonly understood by ordinary technicians in the field to which the utility model belongs. It should also be understood that terms (such as terms defined in commonly used dictionaries) should be interpreted as having the same meaning as their meaning in the context of the relevant technology, and will not be interpreted in an idealized or overly formal sense unless explicitly defined in this article.

[0020] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0021] like Figure 1 and Figure 2As shown, the utility model provides a lens assembly test device, including a test component 10, an optical fiber sensor component 20 and a processing component 30. One end of the optical fiber sensor component 20 is connected to the test component 10, and the other end is connected to the processing component 30. The test component 10 includes a test platform 101, a fixing component 102 for mounting and fixing the lens 100 to be tested, a driving device 103, a transmission shaft 104 and a knocking hammer 105. The fixing component 102 and the driving device 103 are arranged on the test platform 101. One end of the transmission shaft 104 is connected to the driving device 103, and the other end is connected to the knocking hammer 105. The driving device 103 drives the transmission shaft 104 to rotate and then drives the knocking hammer 105 to knock the lens 100 to be tested. The optical fiber sensor 21 is used to receive the vibration audio signal generated by the knocking sound, and transmit the information to the processing component 30. The processing component 30 processes the received information and analyzes whether the lens 100 to be tested is assembled tightly or whether there are defects inside the lens 100 to be tested. It is understandable that the processing component 30 may be a computer, and the computer performs specific algorithm processing on the vibration audio signal.

[0022] More specifically, the optical fiber sensing assembly 20 includes an optical fiber sensor 21 and a data conversion device 22. The optical fiber sensor 21 is arranged near the lens 100 to be tested or attached to the lens 100 to be tested. One end of the data conversion device 22 is connected to the optical fiber sensor 21, and the other end is connected to the processing assembly 30. The optical fiber sensor 21 has a higher accuracy in detecting audio vibrations, effectively measures the weak difference of sound waves, and can ensure the accuracy of the test information. It can be understood that the basic working principle of the optical fiber sensor 21 is to send the light wave from the light source into the sensing unit through the optical fiber, and the sensing unit responds to the vibration signal to be measured, so that it interacts with the light wave, causing the optical properties of the light wave (such as the intensity, phase, wavelength, frequency, polarization state, etc. of the light) to change, and become a light wave signal modulated by the vibration signal. After the light wave signal is reflected by the sensing unit, it enters the photoelectric detector through the optical fiber, is converted into an electrical signal, and then performs signal demodulation processing, thereby obtaining the vibration signal to be measured. The data conversion device 22 is used to connect the optical fiber sensor 21 and the processing assembly 30 to realize the transmission and feedback of the test information. The optical fiber sensor 21 and the data conversion device 22 are existing technology products and can be purchased on the market.

[0023] In order to facilitate the fixation of the optical fiber sensor 21 , the test assembly 10 further includes an optical fiber fixing seat 107 . The optical fiber fixing seat 107 is rotatably connected to the fixing assembly 102 , and the optical fiber sensor 21 is fixed on the optical fiber fixing seat 107 .

[0024] In order to ensure that the transmission shaft 104 and the knocking hammer 105 rotate smoothly and facilitate the knocking test, the test assembly 10 further includes a fixing rod 106 fixedly arranged on the test platform 101, and the fixing rod 106 is rotatably connected to the transmission shaft 104. That is, the driving device 103 drives the transmission shaft 104 to rotate around the fixing rod 106, thereby driving the knocking hammer 105 to swing and knock the lens 100 to be tested.

[0025] It is understandable that the driving device 103 may be a motor or other power device that can drive the transmission shaft 104 to rotate. The driving device 103 drives the transmission shaft 104 to rotate so that the hammer 105 strikes the lens 100 to be tested at a constant speed and force.

[0026] During operation, the lens 100 to be tested is fixed to the fixing assembly 102, the optical fiber sensor 21 is placed close to or close to the lens 100 to be tested, the driving device 103 is started to drive the transmission shaft 104 and the knocking hammer 105 to rotate, the knocking hammer 105 knocks the lens 100 to be tested, the optical fiber sensor 21 collects the test information reflected by the lens 100 to be tested, and transmits the test information to the processing assembly 30 through the data conversion device 22. The processing assembly 30 is used to process the test information and analyze whether the lens 100 to be tested is assembled tightly or whether there are defects inside the lens 100 to be tested.

[0027] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A lens assembly test device, characterized in that: The invention comprises a test assembly (10), an optical fiber sensing assembly (20) and a processing assembly (30), wherein one end of the optical fiber sensing assembly (20) is connected to the test assembly (10), and the other end is connected to the processing assembly (30); the test assembly (10) comprises a test platform (101), a fixing assembly (102) for fixing a lens to be tested (100), a driving device (103), a transmission shaft (104) and a hammer (105), wherein the fixing assembly (102) and the driving device (103) are connected to the testing platform (101), and the fixing assembly (102) and the driving device (103) are connected to the testing platform (101), and the fixing assembly (102) and the processing assembly (30) are connected to the testing platform (101), and the testing platform (101) is ...) and the processing assembly (30) 03) is arranged on a test platform (101), one end of the transmission shaft (104) is connected to the driving device (103), and the other end is connected to the striking hammer (105), the driving device (103) drives the transmission shaft (104) to rotate and then drives the striking hammer (105) to strike the lens (100) to be tested, the optical fiber sensing component (20) collects the vibration audio signal and transmits it to the processing component (30), and the processing component (30) processes and analyzes the vibration audio signal.

2. A lens assembly test device according to claim 1, characterized in that: The test assembly (10) further comprises a fixing rod (106) fixedly arranged on the test platform (101), wherein the fixing rod (106) is rotationally connected to the transmission shaft (104).

3. The lens assembly test device according to claim 1, characterized in that: The optical fiber sensing component (20) comprises an optical fiber sensor (21) and a data conversion device (22); the optical fiber sensor (21) is arranged near the lens to be tested (100) or attached to the lens to be tested (100); one end of the data conversion device (22) is connected to the optical fiber sensor (21) and the other end is connected to the processing component (30).

4. The lens assembly test device according to claim 3, characterized in that: The test assembly (10) further comprises an optical fiber fixing seat (107), wherein the optical fiber fixing seat (107) is rotatably connected to the fixing assembly (102), and the optical fiber sensor (21) is fixed on the optical fiber fixing seat (107).

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