Positioning means
A positioning device and positioning groove technology, applied in the direction of the casing of the measuring device, can solve the problems of inconsistent manual contact force, large position error of the detection point, affecting the accuracy of the resistance value, etc. handy effect
Inactive Publication Date: 2017-06-23
SCIENBIZIP CONSULTINGSHENZHENCO
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Problems solved by technology
However, when the above method is used for detection, the position error of the two detection points is relatively large, which affects the accuracy of the resistance value, and the accuracy of the resistance value is further affected due to inconsistent manual contact strength.
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Embodiment Construction
[0061] see figure 1 and figure 2 , the positioning device 100 according to the embodiment of the present invention is used for positioning the lens module 200 when detecting the resistance value of the lens module 200 . The positioning device 100 includes a substrate 10 , a positioning mechanism 30 , a contact mechanism 50 and a connecting mechanism 70 . The positioning mechanism 30 is disposed on the substrate 10 for accommodating the lens module 200 . The contact mechanism 50 is slidably installed in the positioning mechanism 30 for contacting the two detection points of the lens module 200 . The connecting mechanism 70 is fixedly arranged on the substrate 10 and is used for connecting with a resistance measuring instrument (not shown), such as a three-purpose electric meter. In the embodiment of the present invention, the lens module 200 is roughly in the shape of a regular hexahedron, and it has two detection points (not shown in the figure). . It can be understood t...
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A positioning device used when detecting the resistance value of a lens module includes a positioning mechanism, a contact mechanism and a connecting mechanism. The positioning mechanism includes a containing part, a positioning part and a cover hinged with the containing part. Two sliding slots are provided on the receiving part, and positioning slots for accommodating the lens module are provided on the positioning part, and the sliding slots are located on both sides of the positioning slot and communicate with them. A driving slot is opened on the cover, and the driving slot is formed with a driving slope. The contact mechanism includes first and second contact assemblies arranged in the sliding groove, both of which include a sliding block slidably arranged in the sliding groove and a first contact piece arranged on the sliding block. The sliding block includes a matching inclined surface that cooperates with the driving inclined surface, so that when the cover is closed, a driving force is generated to drive the sliding block to slide toward the positioning groove, so that the contact member touches the preset detection point of the lens module. The connection mechanism includes a second contact electrically connected to the first contact. The use of the above positioning device is beneficial to improve the detection accuracy when detecting the resistance value.
Description
technical field [0001] The invention relates to a positioning device, in particular to a positioning device used in the detection process of the resistance value of a lens module. Background technique [0002] During the manufacturing process of the lens module, it is generally necessary to detect its resistance value. During detection, manually determine two detection points, and then use a three-purpose electric meter with two probes to touch the above two detection points respectively, and then read the resistance value. However, when the above method is used for detection, the position error of the two detection points is relatively large, which affects the accuracy of the resistance value, and the accuracy of the resistance value is further affected due to inconsistent manual contact strength. Contents of the invention [0003] In view of the foregoing, it is necessary to provide a positioning device capable of improving the detection accuracy during the detection pr...
Claims
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IPC IPC(8): G01R1/04
Inventor 吴俊甫林政安
Owner SCIENBIZIP CONSULTINGSHENZHENCO