CN205377994U - Multistation cell -phone camera module detects machine - Google Patents

Abstract

The utility model discloses a multi-station mobile phone camera module detection machine, which belongs to the technical field of camera module image function detection equipment. It includes a case, an object-carrying mechanism horizontally arranged in the case, and an optical detection system, the optical detection system includes a first light source assembly, a first camera, a second light source assembly and a second camera, and the object-carrying mechanism includes A rotary table, a power device for driving the rotary table, a server, a plurality of module carriers and data acquisition modules arranged in pairs on the rotary table, at least one pair of the module carriers and the first The light source assembly is matched with the second light source assembly, and at least one pair of the module carriers is used to place the camera module. The utility model can realize the simultaneous detection of multiple groups of cameras at different light sources through the servo controlled by PLC to drive the rotary table, and employees do not need to manually move the camera module to the corresponding light source, which effectively improves the test accuracy and test work efficiency .

Description

Multi-station mobile phone camera module inspection machine

technical field

The utility model belongs to the technical field of camera module image function detection equipment, and more specifically relates to a multi-station mobile phone camera module detection machine.

Background technique

With the development of technology, the demand and quality of camera modules on mobile phones and other electronic products are increasing and stricter. In order to ensure the quality of the product, it is necessary to test the function of the camera module. The function test of the camera module is to place the module under the specified light source and test the test items under the corresponding light source, so as to achieve the purpose of picking out the defective products. . The functional test of the camera module mainly includes: AF close focus test, stain test and AF far focus and MTF far focus test, the functional test of the camera module in the prior art needs to pass through a plurality of devices with different test functions to the camera module Perform multiple functional tests. During the test, employees need to manually move the camera module to the corresponding light source to test the function. At this time, the position of the camera module is not fixed, and it is usually impossible to place the camera module in the center of the light source. , the test accuracy is greatly affected. In addition, since employees have been manually moving modules, a large part of the entire testing process is wasted on moving modules, seriously affecting the efficiency of production testing.

Therefore, in order to meet the needs of industrialized production, it is necessary to develop a fully automatic camera module testing equipment.

Utility model content

Aiming at the above-mentioned problems existing in the prior art, the utility model provides a multi-station mobile phone camera module testing machine, which realizes batch testing of camera modules through an integrated whole machine design, with high detection efficiency and good accuracy of test results .

In order to solve the above problems, the technical scheme adopted in the utility model is as follows:

A multi-station mobile phone camera module inspection machine, including a chassis, an object-carrying mechanism horizontally arranged in the chassis, and an optical detection system, the optical detection system includes a first light source assembly, a first camera, and a second light source assembly and a second camera, the loading mechanism includes a rotary table, a power device for driving the rotary table, a server, several module carriers and data acquisition modules that are arranged in pairs on the rotary table, and the module At least one pair of the carrier is matched with the first light source assembly and the second light source assembly, at least one pair of the module carrier is used to place the camera module, and the power device is on the side of the server Under the action, the rotary table is driven to rotate along a fixed angle.

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

By setting up an optical detection system with a multi-station loading mechanism and a multi-light source, the servo-driven rotary table controlled by PLC can realize simultaneous detection of multiple groups of cameras at different light sources, and employees do not need to manually move the camera module Under the corresponding light source, the camera module can be well aligned with the center position of the light source, which effectively improves the test accuracy and test work efficiency; the double-linkage screw lifting adjustment device is used to realize the precision of the light source board in the height direction The adjustment is fast and convenient, with small error, good mechanism stability, and small space occupation. With the cooperation of the ruler component, the system can automatically identify the height parameter; and there is a display on the box, which can display the test results through the display, which is convenient for operation. Personnel judge whether the camera module is intact according to the test results; compared with the current human eye recognition method, the utility model has high detection efficiency, high precision and low missed detection rate.

Description of drawings

Fig. 1 is the structural representation of the multi-station mobile phone camera module detection machine of the present invention;

Fig. 2 is the internal structure schematic diagram of the multi-station mobile phone camera module detection machine of the present invention;

Fig. 3 is the structural representation of the loading mechanism of the multi-station mobile phone camera module detection machine of the present invention;

Fig. 4 is the structural representation of the power device of the multi-station mobile phone camera module detection machine of the present invention;

Fig. 5 is a structural schematic diagram of the first light source assembly of the multi-station mobile phone camera module detection machine of the present invention;

6 is a schematic diagram of the installation structure of the rotating shaft of the multi-station mobile phone camera module detection machine of the present invention;

7 is a schematic diagram of the installation structure of the lifting adjustment device of the multi-station mobile phone camera module detection machine of the present invention;

Fig. 8 is a structural schematic diagram of the second light source assembly of the multi-station mobile phone camera module detection machine of the present invention;

Fig. 9 is a structural schematic diagram of the lifting adjustment device of the multi-station mobile phone camera module detection machine of the present invention;

Fig. 10 is a structural schematic diagram of the first screw rod lifting assembly of the multi-station mobile phone camera module inspection machine of the present invention;

Fig. 11 is a structural schematic diagram of the scale assembly of the multi-station mobile phone camera module detection machine of the present invention;

Fig. 12 is a schematic diagram of the installation structure of the pointer of the multi-station mobile phone camera module detection machine of the present invention;

In the figure: 1, upper chassis, 2, lower chassis, 201, upper frame, 202, lower frame, 203, pillar, 204, universal wheels, 3, loading mechanism, 301, rotary platform, 302, fourth vehicle , 303, data acquisition module, 304, first vehicle, 305, second vehicle, 306, third vehicle, 307, first conical mirror, 308, power unit, 3081, motor, 3082, reducer , 309, the second conical mirror, 4, the first light source assembly, 401, the first light source plate, 402, the first sleeve member, 403, the second motor, 404, the first bracket, 405, the beam, 406, the first Two brackets, 407, positioning frame, 4071, rotating shaft, 408, dial, 409, pointer, 5, second light source assembly, 501, drive motor, 502, transmission member, 503, second light source board, 504, clamping block , 505, side plate, 506, second sleeve member, 507, pointer, 6, second lifting adjustment device, 7, lifting adjustment device, 701, first screw rod lifting assembly, 702, belt, 703, second wire Rod lifting assembly, 7011, the first positioning seat, 7012, the bearing seat, 7013, the screw mandrel, 7014, the second positioning seat, 8, the scale.

detailed description

The utility model is further described below in conjunction with specific embodiments.

As shown in Figures 1 to 12, a multi-station mobile phone camera module inspection machine includes a chassis, an object-carrying mechanism 3 horizontally arranged in the chassis, and an optical detection system. The optical detection system includes a first light source assembly 4, a first A camera (not shown), a second light source assembly 5 and a second camera (not shown), the object loading mechanism 3 includes a rotary table 301, a power unit 308 for driving the rotary table 301, a server, and several pairs arranged on the rotary table The module carrier of 301 and the data acquisition module 303, at least one pair of the module carrier is matched with the first light source assembly 4 and the second light source assembly 5, and at least one pair of the module carrier is used to place the camera module , the power unit 308 drives the turntable 301 to rotate at a fixed angle under the action of the servo.

The module carrier includes a first carrier 304, a second carrier 305, a third carrier 306 and a fourth carrier 302 arranged in a "cross" shape, the first carrier 304 and the third carrier 306 The bottom is empty, the first carrier 304 and the third carrier 306 are used to place the camera module in turn, the second carrier 305 and the fourth carrier 302 are matched with the first light source assembly 4 and the second light source assembly 5; There are two placement stations on each module carrier. The power unit 308 drives the rotary table 301 to rotate counterclockwise or clockwise across 90°; the second carrier 305 and the fourth carrier 302 are provided with conical mirrors, including the first conical mirror 307 and the second conical mirror 309, the conical mirror is used to gather the lights of the first light source assembly 4 and the second light source assembly 5; the small end of the conical mirror is aligned with the lens part of the camera module, and the large end of the conical mirror is aligned with the first light source assembly 4 and the second light source assembly 5 .

The chassis includes an upper chassis 1 and a lower chassis 2 that are connected to each other. The upper chassis 1 includes a housing, a number of liquid crystal displays 102 arranged on the housing and a keyboard for inputting work instructions, a computer host located in the housing, and a computer located on the housing. The video switcher 101, the first camera and the second camera are all arranged in the casing, the first camera and the second camera are connected with the camera module and take the surface image of the camera module, the images collected by the first camera and the second camera The information is sent to the data collection module 303, and the data collection module 303 is connected to the liquid crystal display 102 to display whether there is a defect in the lens of the camera module, such as dust or scratches.

The lower chassis 2 includes an upper frame 201, a lower frame 202, universal wheels 204, side wall panels and pillars 203, and the upper frame 201 and the lower frame 202 are fixedly connected to each other through the pillars 203; the loading mechanism 3 is movable on the upper frame 201 Above, the first light source assembly 4 and the second light source assembly 5 are both movably arranged on the pillar 203 . The first light source assembly 4 includes a first turning mechanism and a first light source board 401 disposed on the first turning mechanism. The first turning mechanism includes a first bracket 404 and a second bracket 406 arranged symmetrically on the left and right, and passing through the first bracket 404. The rotating shaft 4071 between the second bracket 406, the second motor located at one end of the rotating shaft 4071, and the positioning frame 407 sleeved in the middle section of the rotating shaft 4071, the first light source board 401 is fixed on the positioning frame 407; the first bracket 404 and the second A first sleeve member 402 is fixed on the bracket 406 , the first sleeve member 402 is slidably fitted with the pillar 203 , and the first bracket 404 and the second bracket 406 are fixedly connected by a beam 405 .

The second light source assembly 5 includes a supporting frame, a second turning mechanism installed in the supporting frame and a second light source board 503 fixed to the second turning mechanism, and the supporting frame is four rectangular side plates 505 to form a square structure, the four corners of the supporting frame are fixed with second sleeve parts 506, and the second light source assembly 5 slides with the pillar 203 through the second sleeve parts 506; The rotating shaft 4071 set in the supporting frame, the clamping block 504 fixed on the middle section of the rotating shaft 4071 and the driving motor 501 fixed on the supporting frame, the second light source board 503 is fixed on the In the clamping block 504 , the driving motor 501 is connected to the rotating shaft through a transmission member 502 .

The turntable 301 is a circular structure, and the power unit 308 is located below the turntable 301. The power unit 308 includes a vertically arranged motor 3081 and a speed reducer 3082 connected with the motor 3081. The turntable 301 is fixed on the speed reducer 3082 . The number of data collection modules 303 is consistent with the number of module carriers. The other end of the rotating shaft 4071 is connected with a dial 408 , and the second bracket 406 is provided with a pointer 409 matched with the dial 408 , and the dial 408 is used to display the rotation angle of the first light source board 401 . The host computer is integrated with a PLC automatic control program, and the server controls the motor 3081 to rotate at a predetermined angle according to the instructions sent by the host computer.

The utility model also includes a lifting adjustment device 7 for adjusting the height of the second light source assembly 5 and a second lifting adjustment device 6 for adjusting the height of the first light source assembly 4. The lifting adjustment device 7 includes a first screw rod lifting assembly 701, The second screw mandrel lifting assembly 703, the driving assembly, the transmission assembly and the scale assembly for displaying the height, the first screw mandrel lifting assembly 701 and the second screw mandrel lifting assembly 703 are connected with the second light source assembly 5, the first wire The rod lifting assembly 701 and the second screw lifting assembly 703 realize synchronous lifting through the transmission assembly; when the driving assembly drives the first screw lifting assembly 701 to move, the transmission assembly drives the second screw lifting assembly 703 to move synchronously.

The chassis includes an upper chassis 1 and a lower chassis 2 connected to each other. The lower chassis 2 includes an upper frame 201, a lower frame 202, side wall panels and pillars 203, and the upper frame 201 and the lower frame 202 are fixedly connected to each other through the pillars 203. The structure of the first screw mandrel lifting assembly 701 and the second screw mandrel lifting assembly 703 is the same. The first screw mandrel lifting assembly 701 includes the screw mandrel 7013, the screw mandrel nut, the positioning seat that is located at the upper and lower ends of the screw mandrel 7013 and the positioning seat that is located at the positioning seat. Bearing seat 7012, the upper and lower ends of the screw rod are supported in the bearing seat 7012; the positioning seat includes the first positioning seat 7011 fixed on the upper frame 201 and the second positioning seat 7014 fixed on the lower frame 202, and the screw nut is fixed on the first On the screw rod lifting assembly 701. The lower end of the screw mandrel 7013 is fixed with a gear, the transmission component is a belt 702, the driving component is a servo motor, the servo motor is connected to the gear to provide power, and the belt 702 is sleeved on the gear.

The first light source board 401 and the second light source board 503 are energy-saving and high-efficiency LED lamp boards, and the LED lamp boards are arranged with circular LED lamps. The first light source assembly 4 and the second light source assembly 5 are separately arranged on the lower chassis 2, the adjustment methods of the first light source assembly 4 and the second light source assembly 5 are the same. Taking the first light source assembly 4 as an example, the height of the first light source assembly 4 is determined by the lifting adjustment device 7 according to computer instructions, and then the first The second motor of the turning mechanism drives the first light source board 401 to rotate left and right, so that the first light source board 401 illuminates the product at different angles and directions, thereby providing high-brightness full-angle illumination for detection. When the product has dust or scratches, the reflected light will be Changes occur, so when the first camera is shooting, the brightness of the relevant area will be different. After the photos taken by the first camera are sent to the background processing system, the background processing system performs light separation and color extraction on the photos to extract data information of different channels , and compare the gray scale with the surrounding adjacent areas to detect dust and scratches on the camera module.

The scale assembly includes a scale 8 fixed on the upper frame 201 and the lower frame 202, and a pointer 507 fixed on the second light source assembly 5. When the second light source assembly 5 moves up and down, the pointer 507 indicates the height parameter. The first screw lifting assembly 701 and the second screw lifting assembly 703 are arranged along the diagonal of the second light source assembly 5 , and the scale indicated by the pointer 507 is transmitted to the liquid crystal display 102 through the image sensor.

In a specific application, put the camera module product under test into the first carrier 304 to ensure that the product is placed stably and correctly, the rotary table 301 rotates 90° counterclockwise, the optical detection system starts the test, and the light source quickly switches to the first carrier specified by the program. Light source, the first camera reads the current light source illuminance and inputs it into the system to compare it with the light source illuminance sensed by the product under test. At this time, a test is completed; the rear rotating table 301 continues to rotate 90° counterclockwise, and the first The three carriers 306 are turned to the front end of the window of the upper chassis 1, and the subsequent module products to be tested are placed; then the rotating table 301 continues to rotate 90° counterclockwise, and the light source is quickly switched to the second light source, and the second camera reads this time The illuminance of the light source is compared with the illuminance of the light source sensed by the product under test to determine whether the product under test is qualified.

The above schematically describes the utility model and its implementation, which is not restrictive. What is shown in the drawings is only one implementation of the utility model, and the actual structure is not limited thereto. Therefore, if a person of ordinary skill in the art is inspired by it, and without departing from the purpose of the invention of the utility model, without creatively designing a structural method and an embodiment similar to the technical solution, it shall all belong to the utility model. protected range.

Claims (9)

1. A multi-station mobile phone camera module inspection machine, comprising a casing, a load-carrying mechanism and an optical detection system horizontally arranged in the casing, and the optical detection system includes a first light source assembly, a first camera, a second The light source assembly and the second camera are characterized in that: the object-carrying mechanism includes a rotating table, a power device for driving the rotating table, a server, several module carriers and data acquisition modules arranged in pairs on the rotating table set, at least one pair of the module carriers is matched with the first light source assembly and the second light source assembly, at least one pair of the module carriers is used to place the camera module, and the power device The rotary table is driven to rotate at a fixed angle under the action of the servo. 2. The multi-station mobile phone camera module inspection machine according to claim 1, characterized in that: the module carrier includes a first carrier, a second carrier, a second carrier arranged in a "cross" shape. Three carriers and a fourth carrier, the first carrier and the third carrier are empty, the first carrier and the third carrier are used to place the camera module in turn, the The second carrier and the fourth carrier cooperate with the first light source assembly and the second light source assembly. 3. The multi-station mobile phone camera module testing machine according to claim 2, wherein the power device drives the rotating table to rotate counterclockwise or clockwise across 90°. 4. The multi-station mobile phone camera module inspection machine according to claim 1, wherein the chassis includes an upper chassis and a lower chassis connected to each other, and the upper chassis includes a housing, a number of housings located on the housing. The liquid crystal display on the body and the video switcher arranged on the casing, the first camera and the second camera are both arranged in the casing. 5. The multi-station mobile phone camera module inspection machine according to claim 4, wherein the lower chassis includes an upper frame, a lower frame, side wall panels and pillars, and the upper frame and the lower frame The spaces are fixedly connected to each other through the pillars; the loading mechanism is movably arranged on the upper frame, and the first light source assembly and the second light source assembly are both movably arranged on the pillars. 6. The multi-station mobile phone camera module inspection machine according to claim 5, characterized in that: the first light source assembly includes a first turning mechanism and a first light source plate arranged on the first turning mechanism, so The first overturning mechanism includes a first support and a second support symmetrically arranged left and right, a rotating shaft passing between the first support and the second support, a second motor disposed at one end of the rotating shaft, and a second motor sleeved on the The positioning frame in the middle section of the rotating shaft, the first light source board is fixed on the positioning frame; the first sleeve part is fixed on the first bracket and the second bracket, and the first sleeve part slides with the support Cooperate. 7. The multi-station mobile phone camera module inspection machine according to claim 1, characterized in that: the rotary table is a circular structure, the power unit is arranged below the rotary table, and the power unit includes A vertically arranged motor and a reducer connected to the motor, the rotary table is fixed on the reducer. 8. The multi-station mobile phone camera module inspection machine according to claim 1, wherein the number of the data collection modules is consistent with the number of the module carriers. 9. The multi-station mobile phone camera module inspection machine according to claim 6, characterized in that: the other end of the rotating shaft is connected with a dial, and the second bracket is provided with a dial matched with the dial. pointer.