CN219957620U

CN219957620U - Rotary circuit board function test system

Info

Publication number: CN219957620U
Application number: CN202223092900.2U
Authority: CN
Inventors: 朱凯; 刘浩江
Original assignee: Flextronics Technology Suzhou Co Ltd
Current assignee: Flextronics Technology Suzhou Co Ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-11-03
Anticipated expiration: 2032-11-22

Abstract

The utility model discloses a rotary circuit board function test system, which comprises: the visual inspection device is used for detecting whether a product to be inspected exists in an area to be inspected, the carrying manipulator is used for taking and placing the product, and the inspection unit is used for inspecting whether the product to be inspected exists in the area to be inspected. Through the mode, according to the rotary circuit board function test system, the picking and placing board and FT test can be automatically completed through the carrying manipulator and the rotary test unit, so that the accuracy and the flexibility of the test can be improved, the test efficiency can be improved, the test period can be shortened, and the labor cost can be remarkably saved.

Description

Rotary circuit board function test system

Technical Field

The utility model relates to the technical field of electronic test measurement and automation, in particular to a rotary circuit board function test system.

Background

In recent years, with the shortage of labor force and the continuous rise of human resource cost, in order to save labor force, time and investment of equipment hardware resources and continuously improve the test efficiency of production, improve the product quality, build the core competitiveness of production and manufacture, it is increasingly important to introduce a flexible universal test solution capable of being flexibly deployed.

At present, when carrying out FT test of a board to be tested, the following defects exist:

1. the operator is required to manually take and put the product, operate the test equipment and confirm the test items, the test time is long, and the mechanical operation is repeated;

2. personnel need certain operation skill, and a FT testing machine is operated to one person, and operating efficiency is low, and the human cost is high.

3. One test device can only test one model of product, and cannot meet diversified test requirements.

Disclosure of Invention

The utility model mainly solves the technical problem of providing a rotary circuit board function test system which has the advantages of high reliability, high working efficiency and the like, and has wide market prospect in the application and popularization of electronic test measurement.

In order to solve the technical problems, the utility model adopts a technical scheme that:

provided is a rotary circuit board function test system, including: a visual detection device for detecting whether the product to be tested exists in the area to be tested, a carrying manipulator for taking and placing the product and a test unit,

the test unit comprises a test machine table, a turntable bracket, a rotary turntable, a turntable driving mechanism and a detection carrier, wherein the turntable bracket is arranged on the test machine table, the turntable driving mechanism drives the rotary turntable to rotate on the turntable bracket, a plurality of groups of detection carriers for bearing products for detection are movably arranged on the rotary turntable,

the detection carrier comprises an upper needle plate, a pressing rod, a lifting frame, a lifting driving mechanism, a discharging carrier plate, a profiling positioning groove, a positioning pin, a lower needle plate and a discharging detection sensor, wherein the lower needle plate is detachably arranged on the rotary turntable, the discharging carrier plate is elastically arranged on the lower needle plate, a guide pin on the discharging carrier plate is movably connected with a guide sleeve on the lower needle plate so as to accurately discharge the movement of the carrier plate, the profiling positioning groove is formed in the top of the discharging carrier plate and used for limiting the discharging position of the circuit board, the positioning pin for accurately positioning the circuit board and the discharging detection sensor for detecting whether a product is placed in place are arranged in the profiling positioning groove, the pressing rod for pressing the product and the positioning guide pillar movably connected with the discharging carrier plate are arranged on the upper needle plate, the lifting driving mechanism drives the lifting frame to move downwards so as to enable the upper needle plate to be close to or far away from the discharging carrier plate.

In a preferred embodiment of the present utility model, two sets of the detecting carriers are disposed on the rotating turntable.

In a preferred embodiment of the utility model, the test unit upper cover is provided with a protective cover.

In a preferred embodiment of the utility model, the visual inspection device employs a 3D visual camera or a CCD inspection machine.

In a preferred embodiment of the present utility model, the turntable driving mechanism adopts a servo motor and a hollow rotating turntable, the hollow rotating turntable is arranged on the turntable support, and an output end of the hollow rotating turntable is connected with a bottom surface of the rotating turntable, and the servo motor drives the hollow rotating turntable to rotate, so as to drive the rotating turntable to rotate.

In a preferred embodiment of the present utility model, the test machine is provided with a three-color status light, a display and a PLC controller for displaying the current detection status.

In a preferred embodiment of the present utility model, the lifting driving mechanism includes a lifting driving motor, a fixing support, and a lifting guide rail, the fixing support is provided on the test bench, the lifting support is slidably connected with the lifting guide rail on the fixing support through a slider, and the lifting driving cylinder is provided on the fixing support and drives the lifting support to move up and down on the fixing support.

In a preferred embodiment of the present utility model, the discharging carrier plate is connected to the lower needle plate through a spring.

In a preferred embodiment of the present utility model, a code reader for obtaining SN information of the product is movably disposed under the detection carrier.

In a preferred embodiment of the present utility model, the rotary turntable is provided with an opening for facilitating the code reading of the code reader.

The beneficial effects of the utility model are as follows: through handling manipulator, rotation type test unit, can accomplish automatically and get and put board and FT test, not only can improve the accuracy and the flexibility of test, can also improve the efficiency of test, shorten test cycle, showing and saving the human cost.

Drawings

For a clearer description of the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:

FIG. 1 is a schematic diagram of a rotary circuit board functional test system according to a preferred embodiment of the present utility model;

FIG. 2 is a schematic diagram showing a detecting unit structure of a rotary circuit board function test system according to a preferred embodiment of the utility model;

FIG. 3 is a schematic diagram of a rotary turntable of a rotary circuit board function test system according to a preferred embodiment of the present utility model;

FIG. 4 is a schematic diagram of a rotary circuit board functional test system according to a preferred embodiment of the present utility model;

FIG. 5 is a schematic diagram of a rotary circuit board functional test system according to a preferred embodiment of the present utility model;

FIG. 6 is a schematic diagram of a rotary circuit board functional test system according to a preferred embodiment of the present utility model;

fig. 7 is a schematic diagram showing the position of a code reader in a rotary circuit board function test system according to a preferred embodiment of the utility model.

Detailed Description

The following description of the technical solutions in the embodiments of the present utility model will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-7, an embodiment of the present utility model includes:

a rotary circuit board function test system is used for performing function test on a circuit board, and the structure of the rotary circuit board function test system comprises: the visual inspection device 1 is used for inspecting whether the product to be inspected exists in the area to be inspected, the carrying manipulator 2 is used for taking and placing the product, and the inspection unit 3. Through the mutual cooperation of the visual detection device, the carrying manipulator and the rotary test unit, the automatic test of the circuit board FT is realized, and meanwhile, the manual operation mode can be switched, so that the requirement of manual test is met.

Further preferably, the handling robot may directly use an existing 3-axis, 4-axis, or other robot.

Further preferably, the visual detection device may employ a 3D visual camera, a CCD detector, or the like.

The test unit comprises a test machine table 31, a rotary table support 32, a rotary table 33, a rotary table driving mechanism 34 and a detection carrier 35, wherein the rotary table support is arranged on the test machine table, the rotary table driving mechanism drives the rotary table to rotate on the rotary table support, the standardized universal rotary table can be moved to any station for testing according to the requirement of a production test line body, and meanwhile automatic test and manual test can be flexibly switched through soft switching according to the test requirement.

The multiple groups of detection carriers for carrying products for detection are movably arranged on the rotary turntable, namely a double-carrier mode of the rotary turntable, so that next product to be detected can be taken and placed in the current UUT test process, and the waiting time in the test process is fully utilized.

Still preferably, the turntable driving mechanism adopts a servo motor and a hollow rotating turntable, the hollow rotating turntable is arranged on the turntable support, the output end of the hollow rotating turntable is connected with the bottom surface of the rotating turntable, and the servo motor drives the hollow rotating turntable to rotate, so that the rotating turntable is driven to rotate.

Further preferably, the test machine is provided with a three-color status lamp, a power indicator, a display, a double-start button, an emergency stop button and a PLC controller, wherein the three-color status lamp, the power indicator, the display, the double-start button, the emergency stop button, the visual detection device, the carrying manipulator and the test unit are used for displaying the current detection status, and the PLC controller is respectively connected with the three-color status lamp, the power indicator, the display, the double-start button, the emergency stop button, the visual detection device and the carrying manipulator.

Further preferably, the test unit upper cover is provided with a protective cover.

The detection carrier comprises an upper needle plate 351, a pressing rod 352, a lifting frame 353, a lifting driving mechanism 354, a discharging carrier plate 355, a profiling positioning groove 356, a positioning pin 357, a lower needle plate 358 and a discharging detection sensor.

The lower needle plate can be detachably arranged on the rotary turntable, maintenance and overhaul are convenient, the discharging carrier plate is connected with the lower needle plate through an elastic mechanism (a spring, a spring pin and the like), and a guide pin 3511 at the bottom of the discharging carrier plate is movably connected with a guide sleeve on the lower needle plate so as to accurately discharge the movement of the carrier plate, and the discharging carrier plate and the lower needle plate adopt modularized design, so that the discharging carrier plate is convenient to disassemble, assemble and use.

The lower needle plate can be connected with the rotary turntable by utilizing the ITT quick-change connector so as to quickly change the carrier, quickly switch products of other types on one platform, realize hardware sharing, reduce development cost and improve the utilization rate of equipment.

The operation time of taking and placing the plate can be effectively reduced by rotating the turntable, and the efficiency of production test is improved; in addition, the detection carrier can realize the fast switch over of carrier, and rotatory carousel can be nimble the change simultaneously, satisfies the detection demand of different line bodies, reduces the cost input of test development.

The profiling positioning groove is arranged at the top of the discharging carrier plate and used for limiting the discharging position of the circuit board, and a positioning pin for accurately positioning the circuit board and a discharging detection sensor (the discharging detection sensor is connected with a conductive slip ring on the discharging carrier plate) for detecting whether a product is placed in place or not are arranged in the profiling positioning groove so as to meet measurement accuracy and avoid circuit board damage caused by the placement error of the board to be tested.

Due to the deviation of the movement and visual positioning of the manipulator, the board to be tested needs to be accurately placed in the carrier before the next action can be executed. After the mechanical arm grabs the board to be tested to the carrier profiling positioning groove of the FT testing platform, the profiling positioning groove is in an inverted trapezoid shape, the board slides down into the groove through the weight of the profiling positioning groove, the position and the flatness of the board are judged through 2 miniature metal proximity sensors in the groove, the flatness of the board is fed back to the PLC, and finally the board is accurately placed.

The upper needle plate is provided with a pressing rod for pressing the product downwards and a positioning guide post 3510 movably connected with the discharging carrier plate, the upper needle plate is detachably arranged on the lifting frame above the rotary turntable, and the lifting driving mechanism drives the lifting frame to move downwards, so that the upper needle plate is close to the circuit board on the discharging carrier plate, and probes on the upper needle plate and/or the lower needle plate are respectively communicated with the circuit board.

The needle points and the microphone on the lower needle plate, which are communicated with the circuit board, can be connected with the transfer needles on the upper needle plate through the transfer needles on the lower needle plate so as to transfer signals.

Further preferably, the lifting driving mechanism comprises a lifting driving motor, a fixing support 3541 and a lifting guide rail, the fixing support is arranged on the test machine table, the lifting support is in sliding connection with the lifting guide rail on the fixing support through a sliding block, and the lifting driving cylinder is arranged on the fixing support and drives the lifting support to move up and down on the fixing support.

Further preferably, the code reader 3512 for acquiring information such as the product SN is movably disposed below the detection carrier through the adjustment driving mechanism 3513. Wherein, be provided with the opening of the code reader reading of being convenient for on the rotatory carousel.

Further preferably, the adjusting driving mechanism comprises a horizontal adjusting seat, a vertical adjusting seat and a rotary adjusting module, the horizontal adjusting module drives the vertical adjusting module to move back and forth, the bottom of the vertical adjusting seat is movably connected with a horizontal guide groove on the horizontal adjusting seat so as to move back and forth on the horizontal adjusting seat, a connecting clamping seat is movably connected on a guide pillar of the vertical adjusting seat (the connecting clamping seat is clamped on the guide pillar through a clamping groove and fixed by a screw locking clamping groove after the position is adjusted), and the rotary adjusting module is arranged on the connecting clamping seat so as to drive the code reader to overturn.

The test scheme has the characteristic of flexibility and universality of flexible deployment, not only can fully utilize platform hardware and software to realize sharing of platform resources of different products, but also can flexibly select a manual test semi-automatic mode and a full-automatic test mode assisted by a cooperative mechanical arm according to the characteristics of the products and the line body.

In the manual test mode, an operator only needs to complete the action of taking and placing the plate, and other operation skills are not needed; in the full-automatic mode, the FT does not need personnel to operate, and the plate is automatically taken and put, so that the test is automatically completed.

The full-automatic test mode operation process mainly comprises the following steps:

detecting whether a board to be tested exists in the area to be tested or not by utilizing a visual detection device, analyzing and acquiring the model and position coordinates of the board to be tested, and then transmitting model information and coordinate information to the carrying manipulator according to an optimal sequence so as to enable the carrying manipulator to grasp the boards in sequence;

the mechanical arm grabs the board into a carrier A of the FT test system, the test system receives the board placement information, confirms that the board is placed in place through the discharging detection sensor, starts to automatically scan SN, and the PLC controller invokes a test program according to the scanned SN and then transfers the carrier A to the FT test position through the servo motor;

the upper needle plate descends to be attracted with the carrier A, the test software starts to test, at the moment, the other carrier B rotates to a waiting test position and sends information to the carrying manipulator, and the carrying manipulator grabs and places the to-be-tested plate in the to-be-tested area on the carrier B;

after the test of the carrier A is finished, the upper needle plate is separated, at the moment, the carrier B is confirmed to have a plate, the flattening position of the plate is placed correctly, automatic scanning SN is executed, and the servo motor rotates to transfer the carrier B to the test position;

the upper needle plate descends to be attracted with the carrier B, test software starts to be tested, meanwhile, the carrier A rotates out and transmits result information to the carrying manipulator, and the carrying manipulator picks up the test plate in the carrier A and automatically selects a test passing position or a test bad position placed in a test completion area according to the result information of the test;

so far the whole automatic test is completed, and the previous steps are circulated back to restart the test.

When the tray is placed in the area to be tested but the board to be tested is not in the tray, the mechanical arm can automatically grab the empty tray to the passing position of the finished test area and superimpose the empty tray on the passing position, and then the empty tray returns to the area to be tested to grab the circuit board in the next tray for testing. And when the tray does not exist in the area to be tested or the tray in the area to be tested reaches a set value, an alarm is started to remind related personnel to supplement the board to be tested or take off the board to be tested.

The rotary circuit board function test system has the beneficial effects that:

a. the characteristic of flexible deployment is effectively realized by the manual semiautomatic mode of the rotary test platform and the full-automatic mode assisted by the mechanical arm, so that the progress of realizing as much automatic deployment as possible is quickened;

b. the unordered grabbing of the test products can be realized through the aid of a 3D visual system and a mechanical arm, so that the automatic introduction of the test is more flexible and rapid;

c. the plate feeding mode of the rotary test utilizes the mutual matching of the carrier A and the carrier B, thereby effectively saving the waiting time of taking and placing the plate, greatly shortening the test period and remarkably saving the labor cost;

d. the standard sharing flexible sharing platform and the quick switching of the carrier save line changing time and hardware cost;

e. the matching of the sensor and the machine PLC effectively solves the precision problem of the vision system and the mechanical arm, and prevents the circuit board products from being damaged by the execution of test due to the fact that the circuit board products are not put in place;

f. the test of different types of products can be realized only by replacing the fast switching carrier for different circuit board products, the software and hardware resources of the test platform are shared, and the development investment and development period of the software and hardware are greatly reduced.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related arts are included in the scope of the present utility model.

Claims

1. A rotary circuit board functional test system, comprising: a visual detection device for detecting whether the product to be tested exists in the area to be tested, a carrying manipulator for taking and placing the product and a test unit,

2. The rotary circuit board function test system of claim 1, wherein two sets of the test carriers are disposed on the rotary turntable.

3. The rotary circuit board function test system of claim 1, wherein the test unit upper housing is provided with a protective cover.

4. The rotary circuit board function test system of claim 1, wherein the vision inspection device is a 3D vision camera or a CCD inspection machine.

5. The rotary circuit board function test system according to claim 1, wherein the turntable driving mechanism adopts a servo motor and a hollow rotary turntable, the hollow rotary turntable is arranged on the turntable support, the output end of the hollow rotary turntable is connected with the bottom surface of the rotary turntable, and the servo motor drives the hollow rotary turntable to rotate, so that the rotary turntable is driven to rotate.

6. The rotary circuit board function test system according to claim 1, wherein the test machine is provided with a three-color status light for displaying the current detection status, a display, and a PLC controller.

7. The rotary circuit board function test system according to claim 1, wherein the lifting driving mechanism comprises a lifting driving motor, a fixed support and a lifting guide rail, the fixed support is arranged on the test machine table, the lifting support is in sliding connection with the lifting guide rail on the fixed support through a sliding block, and the lifting driving motor is arranged on the fixed support and drives the lifting support to move up and down on the fixed support.

8. The rotary circuit board functional test system of claim 1, wherein the blanking carrier is connected to the lower needle board by springs.

9. The rotary circuit board function test system according to claim 1, wherein the code reader for obtaining SN information of the product is movably disposed below the detection carrier.

10. The rotary circuit board function test system of claim 9, wherein the rotary turntable is provided with an opening for facilitating the reading of the code by the code reader.