JPH0718913B2 - Electronic device testing system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Table of Contents] Outline Industrial field of application Conventional technology Problems to be solved by the invention Means for solving problems Problems Working Example Example of configuration (Figs. 1 and 2; FIG. 3) Description of operation (FIGS. 4 and 5) Effect of the invention [Outline] A test system in which electronic devices are sequentially carried into a predetermined testing machine and a series of functional tests of the electronic devices are automatically performed. In order to provide a test system for electronic devices that promotes full automation of a series of functional tests and has a high operating rate of the tester, a pallet plate and a pallet plate vertically installed on the side edge of the pallet plate are installed. Delivering the pallet unit to a pallet unit having a jack connector board on which a large number of jack side connectors are arranged, an electronic device mounted on the pallet board and connected thereto, and a test stand attached to the selected tester. , And recovery A self-propelled vehicle, a test stand that receives the pallet unit on the stand and sets it so that it can be tested, and a plug-side connector that fits and connects to the jack-side connector are arranged. A contact unit having a reciprocating plug connector board, a plurality of testing machines arranged as desired along a traveling path of a self-propelled vehicle, a control section for performing interface control of each of the constituents, and the electronic device. In order to carry out the series of functional tests described above, a system control unit for operating the self-propelled vehicle as desired is provided.

[Industrial application field]

The present invention relates to a test system in which an electronic device is sequentially loaded into a predetermined testing machine and a series of functional tests of the electronic device are automatically performed.

With the diversification of customers, communication devices in recent years have come to have various types of information transmission means and a wide range of frequency bands to be used. As a result, the electronic devices that make up the communication device are
There are many models.

On the other hand, an electronic device used for communication equipment has a frequency test, a pulse waveform test, an optical signal characteristic test, etc.
A kind of functional test shall be carried out.

As described above, as the number of types of electronic devices increases, there is a demand for an efficient test system that has a low test facility cost and a short test time.

[Conventional technology]

When the number of electronic device models was small, a comprehensive test device was installed for each model, and the above-mentioned functional tests were carried out with a single comprehensive test device.

However, with the increasing number of electronic device models, it is expensive to install a comprehensive test device for each model.
Equipment costs increase significantly. In addition, the operating rate of each comprehensive test apparatus is generally lowered.

Therefore, in testing a large number of electronic devices, a comprehensive testing device is not used, and a desired number of single-function testing devices common to different models are installed to reduce the equipment cost.

Then, these single-function testers are arranged on both sides of the carrier device for delivering the electronic device as desired, and the electronic device to be tested is sent to the test table attached to each tester, and the electronic device is manually operated. A test machine was connected to perform a functional test.

At this time, the input / output connector of the electronic device differs depending on its frequency.
If it is 1.5MHz or more, you must use each coaxial connector. Therefore, the type of connector used differs depending on the model of the electronic device, and the number of connectors and the arrangement of connectors also differ.

For the above-mentioned reason, conventionally, the connection between the electronic device and the tester had to rely on human labor.

Needless to say, several test machines are arranged in the functional test process that requires a long test time, corresponding to the test time.

[Problems to be solved by the invention]

However, since the conventional connecting means between the electronic device and the testing machine is manual, there is a problem that the number of connecting steps is large and the operating rate of the testing machine is reduced at least for the connecting work time.

The present invention was created in view of the above point, and automates the connection between the electronic device and the tester, promotes complete automation of a series of functional tests, and has a high operating rate of the tester. The purpose is to provide a test system for the device.

[Means for solving problems]

In order to solve the above problems, the present invention, as illustrated in FIG. 1, vertically installs on a pallet plate 51 and side edges of the pallet plate 51, and includes a large number of jack-side coaxial connectors and jack-side multi-connectors. A pallet unit 5 having a jack connector board 6 in which connectors are arranged; a self-propelled vehicle 3 for delivering the pallet unit 5 having the electronic device 1 to each test stand 4 of the tester 2 arranged as desired; The test table 4 has a feeding means for transmitting and receiving the pallet unit 5 to and from the self-propelled vehicle 3, and the test table 4 receives the pallet unit 5 on the table and sets it for testing.

Then, means for positioning the received pallet unit 5 at a predetermined position on the test table 4 is provided.

In addition, a slide table 71 that reciprocates in the front-rear direction on the test stand 4, and a plug-side coaxial connector and a plug-side multi-connector that are vertically installed on the side edge of the slide table 71 and that are inserted into the jack-side connector are arranged. The contact unit 7 having the plug connector board 8 is provided and mounted on the test stand 4.

It should be noted that when the electronic device 1 is mounted on the pallet unit 5, the cable connectors of the cables pulled out from the rear surface of the jack side connector are connected to the input / output connectors of the electronic device 1, respectively.

The tester 2 is connected to the back side of the plug-side coaxial connector and the plug-side multi-connector of the plug connector board 8 in advance via a cable.

A control unit is provided for performing interface control of each component and transmitting information on whether the test is good or bad to the system control unit.

Arranging a plurality of test machines each performing a different functional test as desired, operating the self-propelled vehicle 3 as desired by a command from the system control unit, and sequentially supplying / recovering the electronic device 1 to / from the selected test machine, It is configured to carry out a series of functional tests.

[Action]

According to the above-mentioned means of the present invention, the jack connector board 6 and the plug connector board 8 are provided with connectors having versatility corresponding to each model of the electronic device 1, and the electronic device 1 and the jack are preliminarily arranged. The connector board 6 and the plug connector board 8 are connected to the tester 2, respectively.

Therefore, after the pallet unit 5 is positioned at a predetermined position on the test stand 4, when the contact unit 7 moves forward, the jack connector board 6 and the plug connector board 8 are fitted to each other, so that the electronic device 1 and the tester 2 are connected to each other. The test circuit will automatically connect.

Transfer of the pallet unit 5 between the self-propelled vehicle 3 and the test stand 4, positioning of the pallet unit 5 on the test stand 4, drive of the contact unit 7, start and end of test of the tester 2, contact unit 7 The control unit 20 executes a series of interface control, such as disconnection of the.

Further, the system control unit selects a test machine corresponding to the machine to be tested, operates the self-propelled vehicle 3, and delivers the electronic device 1 to the selected station of the test stand 4.

That is, a series of delivery of the electronic device to the selected tester-transfer from the self-propelled vehicle to the test stand-connection of the test circuit-execution of the test-transfer of the electronic device from the test stand to the self-propelled car. The work is automated and all functional tests are completed. Therefore, the waiting time of each testing machine is reduced and the operating rate of the testing machine is improved.

〔Example〕

The present invention will be specifically described below with reference to the drawings. The same reference numerals denote the same objects throughout the drawings.

FIG. 1 is a configuration diagram of the present invention, FIG. 2 is a perspective view of an embodiment of the present invention, FIG. 3 is a diagram showing an essential part of the present invention, (a) is a perspective view of a pallet unit, and (b) is A side view of the plug connector board portion, (c) is a sectional view of the coaxial connector, FIG. 4 is a layout diagram of an embodiment of the present invention, and FIG. 5 is a flowchart of the present invention.

In FIGS. 1 and 2, reference numeral 5 denotes a pallet unit composed of a pallet plate 51 made of a metal plate such as aluminum and a jack connector panel 6 installed vertically on the front side edge of the pallet plate 51.

As shown in detail in FIG. 3 (a), the pallet plate 51 is a square shape on which the electronic device 1 having the largest shape can be placed, and is in a direction orthogonal to the jack connector board 6 (that is, the forward movement of the vehicle 3). Side edge (pallet unit 5)
Is mounted on the self-propelled vehicle 3, the central portion of the left side edge) is cut into an inverted trapezoid, and a left reference side edge 55 is provided in the front-rear direction (referred to as the forward direction of the self-propelled vehicle 3). The central portion of the side edge of the is also machined into an inverted trapezoid to provide a right reference side edge 56. The reference side edge serves as a reference for positioning the pallet unit 5 in the left-right direction when the pallet unit 5 is placed on the test stand 4.

As shown in FIG. 3 (b) in detail, the jack connector board 6 has a jack-side coaxial cable whose number is equal to or more than the maximum number of coaxial connectors mounted in the electronic device models. A connector 61 is provided. In addition, jack-type multi-connectors 62, which are equal to or more than the maximum number of multi-connectors to be mounted among the types of electronic devices, are provided.

Further, guide holes 65 are provided on both sides of the jack connector board 6 to serve as guides when the plug connector board 8 is fitted.
Is provided.

When the electronic device 1 is mounted on the pallet unit 5, one of the cable connectors of the cable which is pulled out from the rear surface of the jack-side connector is selected and connected to the input / output connector of the electronic device. .

3 is a system control unit (the system control unit 10 shown in FIG.
0) command to stop at a predetermined station, deliver the pallet unit 5 to the designated test stand 4, receive the pallet unit 5 from the designated test stand 4, and deliver it to another test stand in the next process. It is a self-propelled vehicle.

Reference numeral 4 denotes a test stand attached to the testing machine 2, which receives the pallet unit 5 with the electronic device 1 mounted from the self-propelled vehicle 3 and sets the pallet unit 5 at a predetermined position on the stand. It has a function of fitting and connecting the jack connector board 6 and the plug connector board 8 to connect the test circuits of the electronic device 1 and the tester 2.

A plurality of parallel slit-shaped recesses extending in the front-rear direction are provided on the surface of the test stand 4, and transverse feed rollers 48 are installed in the respective recesses as shown in FIG. 3 (a).
The lateral feed roller 48 is controlled by the controller 20. That is, the circumferential surface of the lateral feed roller 48 is normally buried under the table surface, and when the pallet unit 5 is transferred, it rises while maintaining a horizontal state, and the upper part of the circumferential surface is the table surface portion. When exposed, lift the pallet plate 51 slightly while keeping it horizontal.

When receiving the pallet unit 5 from the self-propelled vehicle 3, the pallet plate 51, that is, the pallet unit 5 is pulled in the direction of arrow A onto the test table 4 by rotating counterclockwise as shown in FIG. In addition, when the pallet unit 5 is transferred to the self-propelled vehicle 3, the pallet unit 5 is rotated to the right and sent out in the direction of the self-propelled vehicle 3.

The self-propelled vehicle 3 is also provided with a lateral feed roller similar to the lateral feed roller 48.

The pallet unit 5 sent in the lateral direction and sent to the test table 4 stops the lateral feed motion when the left reference side edge 55 portion abuts the left positioning pin 45 protruding on the test table.

And, the right positioning pin 46 that was always sunk below the table surface
Rises, the left Taber side surface of the right positioning pin 46 contacts the side wall of the right reference side edge 56, and the pallet plate 51 is sandwiched between the left positioning pin 45 and the right positioning pin 46. Therefore, the position of the pallet unit 5 in the left-right direction is predetermined.

A pair of fluid cylinders 41 whose piston rods 41a are driven in the front-rear direction are installed on both sides of the test table 4 on the contact unit 7 side. Further, a pair of front and rear positioning pins 42 are provided on both sides of the table surface opposite to the contact unit 7.

When the fluid cylinder 41 operates according to a command from the control unit 20, each piston rod 41a abuts on the front end surface of the pallet plate 51 (the end surface on the far side in FIG. 2) to move the pallet unit 5 toward the front and rear positioning pins 42 ( Arrow B shown in FIG.
Direction).

Then, the rear end surface of the pallet plate 51 (the front end surface in FIG. 2) contacts the front-rear positioning pin 42, whereby the front-rear position of the pallet unit 5 is determined in a predetermined manner.

In addition, a position confirmation sensor (for example, a micro switch) 43 is installed adjacent to each front and rear positioning pin 42, and whether the rear end surface of the pallet plate 51 is in contact with each of the pair of front and rear positioning pins 42, Confirm the information and control section 20
It is transmitted to.

When the pallet plate 51 is not in contact with both the front and rear positioning pins 42, the piston rod is retracted and the above-described operation is repeated.

7 is a slide table 71 that reciprocates in the front-back direction on the test table 4, and a pallet unit 5 of the slide table 71.
It is a contact unit composed of a plug connector board 8 installed vertically on the side edge portion on the side.

As shown in FIG. 3B in detail, the plug connector board 8 has a jack side coaxial connector of the jack connector board 6.
Corresponding to 61, a plug-side coaxial connector 81 is provided, and corresponding to a jack-side multi-connector 62, a plug-side multi-connector 82 is provided.

Further, on both sides of the plug connector board 8, there are provided guide pins 85 which are fitted into the guide holes 65 provided in the jack connector board 6.

The test machine 2 is installed on the side surface of the test table 4, and the control unit 20 is attached to the test machine 2. The tester 2 is a single function tester that performs one function test among frequency test, pulse waveform test, optical signal characteristic test and the like.

And the plug-side multi-connector of the plug connector board 8
Each terminal of the plug connector coaxial connector 82 and the plug connector coaxial connector 81 is connected to the tester 2 via a cable pulled out from the back surface side of the plug connector board 8.

The contact unit 7 is located behind the contact unit 7.
A fluid cylinder 72 is installed to drive the cylinder in the front-back direction.
The fluid cylinder 72 is driven by a command from the control unit 20, and is operated after positioning the pallet unit 5 at a predetermined position on the table of the test table 4, and its piston rod moves the contact unit 7 forward (second direction). (Arrow B direction shown in the figure)
Press to.

As a result, the plug connector board 8 becomes the jack connector board 6
The guide pins 85 provided on the plug connector board 8 fit into the guide holes 65 provided on the jack connector board 6 so as to be close to each other.

As a result, the relative positions of the respective connectors are predetermined, and the respective plug-side coaxial connectors 81 correspond to the corresponding jack-side coaxial connectors 61 and the respective plug-side multi-connectors 82 correspond to the corresponding jack-side multi-connectors 62. Insert and connect electrically.

As shown in detail in FIG. 3 (c), the coaxial connector has an outer diameter of the outer conductor 61a of the jack side coaxial connector 61 of, for example,
The outer conductor 81a of the plug-side coaxial connector 81 has an inner diameter of 10 mm. Therefore, the plug side coaxial connector 81
The mating allowance for inserting the jack side coaxial connector 61 is 0.25
mm, which is very small.

According to the present invention, as described above, first, the pallet unit 5 is positioned at a predetermined position on the table, and then the pair of guide holes 65.
And a guide pin 85 are provided to perform highly accurate positioning. Therefore, there is no problem in fitting the jack side coaxial connector 61 and the plug side coaxial connector 81.

The plug-side multi-connector 82 is a connector in which its contact is once inserted so as to be parallel to the contact of the jack-side multi-connector 62, and then moved in a direction orthogonal to the inserting direction to bring it into contact with the mating contact, that is, It uses a zero insertion connector. That is, the insertion / extraction force of the multi-connector is small, and an unnecessarily large force is not applied to the plug connector board 8 and the jack connector board 6. Therefore, the straightness of the jack connector board 6 and the plug connector board 8 does not decrease.

On the other hand, since the pallet unit 5 is heated when the electronic device is burned in, the pallet plate 51 may warp.
If the pallet plate 51 is warped, the guide pin 85 and the guide hole
A position shift in the height direction occurs with respect to 65, smooth fitting is no longer performed, and eventually the guide pin 85 or the guide hole 65 is worn and the guide function deteriorates.

In order to prevent this, as shown in FIG. 3 (b), when the contact unit 7 advances, the pallet plate
A means for correcting the warp is provided by pressing the vicinity of the jack connector board 6 of 51 downward.

More specifically, a pair of pallet warp correction rollers 75 are provided on both sides of the plug connector board 8 and are mounted so as to rotate about a horizontal axis. The height of the lower circumferential surface of the pallet warp straightening roller 75 is adjusted to the upper surface of the pallet plate 51 when it is not warped.

When the contact unit 7 is driven forward, the guide pin 85
The pallet warp correction roller 75 presses the upper surface of the pallet plate 51 before the pallet is fitted into the guide hole 65. Therefore, the warp of the pallet plate 51 is corrected, the heights of the guide pin 85 and the guide hole 65 are made to coincide with each other, and an unreasonable force is not applied to both, so that there is no fear of wear.

The operation of the present invention will be described below with reference to FIGS.

As shown in FIG. 4, the test machine 2-2 is arranged in the latter stage of the test machine 2-1 and the test machine 2-3 is arranged so as to face the test machine 2-2 with a traveling path therebetween. The test machine 2-4 is arranged in the latter stage of the test machine 2-2, and the test machine 2-5 is arranged so as to face the test machine 2-4 with a traveling path therebetween. Other test machines are not shown. Testing machine 2-1, 2-2, 2-
4 is a single function tester that performs one of the frequency test, pulse waveform test, optical signal characteristic test, and the like.

The tester 2-2 and the tester 2-3, and the tester 2-4 and the tester 2-5 are testers that perform the same functional test, respectively, and the test man-hours are almost the same as those of other functional tests. Since it is doubled, we have two units each to balance with other testing machines.

A test stand 4-1, 4-2, 4-3, 4-4, 4-5 is attached to each testing machine.

The system control unit 100 is provided to receive the quality of each electronic device from the control unit 20, and based on the information input in advance, the self-propelled vehicle 3 is operated as desired.

The station P _0, which is the base point of the self-propelled vehicle 3, is provided in front of the tester 2-1 and the pallet unit 5 equipped with the electronic device 1 is installed.
It is installed in the self-propelled vehicle 3 at station P ₀ . The traveling path of the self-propelled vehicle 3 is a loop type, and the station P is located next to the test stand 4-1.
₁ , station P ₂ between test stand 4-2 and test stand 4-3,
Stations P ₃ are provided between the test bench 4-4 and the test bench 4-5, respectively.

The system control unit 100 commands the self-propelled vehicle 3 to go to a destination, a station to stop, supply a pallet unit to a test table, or discharge the pallet unit from the test table.

Since it is configured as described above, the pallet unit is mounted on the self-propelled vehicle, and the system control unit confirms in step 101 whether or not the station of the selected functional testing machine is vacant.

If it is vacant, the self-propelled vehicle is started (step 102), and the self-propelled vehicle is stopped at the station of the test machine (step 103). When the self-propelled vehicle arrives at the station, the lateral feed roller on the self-propelled vehicle and the lateral feed roller on the test stand are driven to transfer the pallet unit to the test stand (step 104).

When another self-driving vehicle is stopped at the station at the time of step 101, the station waits until the station becomes empty (step 105). Then, when the station becomes vacant, the self-propelled vehicle will start. That is, the process proceeds to step 102.

The fluid cylinder is driven to move the pallet unit to a predetermined position on the test stand (step 106), and step 107
Then, whether or not the pallet unit is at a predetermined position is inspected by means of the position confirmation sensor. If not, the process returns to step 106 and the fluid cylinder repeats the positioning operation.

In addition, step 10 of transferring to the pallet unit 5 test stand
When step 4 ends, the self-propelled vehicle leaves the station in step 108.

If the pallet unit is set properly in step 107, the contact unit advances in step 109, the warp of the pallet plate is corrected in step 110, and the plug connector board is fitted to the jack connector board in step 111 to perform the connection work. Complete.

That is, the electronic device is electrically connected to the testing machine via the cable-jack connector board-plug connector board-cable in a state of being mounted on the pallet unit.

Then, in step 112, the tester is activated to perform a predetermined functional test of the electronic device.

When the test ends, the control unit sends the end of the test and the quality thereof to the system control unit. Then, the contact unit is retracted (step 113) in response to a command from the control unit, and the connection between the jack connector board and the plug connector board is released.

By the time of this step, step 114 has been carried out and the self-propelled vehicle has arrived at this station.

Then, in step 115, the lateral feed roller rotates in the opposite direction to the previous one, and the pallet unit is transferred to the self-propelled vehicle. That is, the electronic device that has completed the function test in the test machine is transferred to the self-propelled vehicle while being mounted in the pallet unit.

Then, in step 116, the self-propelled vehicle starts.

In step 117, the system control unit verifies the next process of the electronic device, and returns to step 101 to carry the electronic device into the next-stage tester.

If all functional tests have been completed, deliver the vehicle to the station where the test is completed and remove the electronic device from the pallet unit.

The electronic device determined to be defective as a result of the characteristic test is delivered to a station different from the non-defective product.

〔The invention's effect〕

As described above, according to the present invention, the electronic device is mounted on the pallet unit common to each model, and the electronic device is tested by sequentially delivering and collecting the electronic device to the single-function tester in which the pallet unit is arranged. It is a system, it is possible to fully automate a series of functional tests of electronic devices, and the operating rate of each testing machine is high, and the equipment cost is low, etc.
It has an excellent effect in practical use.

[Brief description of drawings]

FIG. 1 is a block diagram of the present invention, FIG. 2 is a perspective view of an embodiment of the present invention, and FIGS. 3 (a), (b), and (c) are views showing the main part of the present invention, respectively. FIG. 4 is a layout diagram of an embodiment of the present invention, and FIG. 5 is a flowchart of the present invention. In the figure, 1 is an electronic device, 2,2-1,2-2,2-3,2-4,2-5 are test machines, 3 is a self-propelled vehicle, 4,4-1,4-2,4 -3,4-4,4-5 is a test stand, 5 is a pallet unit, 6 is a jack connector board, 7 is a contact unit, 8 is a plug connector board, 20 is a control section, 42 is a front / rear positioning pin, and 43 is a position. Confirmation sensor, 45 left positioning pin, 46 right positioning pin, 51 pallet plate, 61 jack side coaxial connector, 62 jack side multi-connector, 65 guide hole, 81 plug side coaxial connector, 82 plug side Multi-connector, 85 is a guide pin, 71 is a slide table, 75 is a pallet straightening roller, and 100 is a system controller.

Claims (1)

[Claims] 1. A pallet unit (5) comprising: a pallet plate (51); and a jack connector panel (6) vertically installed on a side edge portion of the pallet plate and provided with a large number of jack side connectors. An electronic device (1) to be tested, which is placed on the pallet plate (51) and connected to the selected connector on the jack side.
And a self-propelled vehicle (3) that delivers and collects the pallet unit (5) to a test stand (4) attached to the selected testing machine, and the pallet between the self-propelled vehicle (3). A test (4) having a feeding means for sending and receiving the unit (5) and receiving the pallet unit (5) on a table, and the received pallet unit (5) are provided on the test table (4) in a predetermined manner. A contact having a plug connector board (8) in which a means for positioning at a position and a plug-side connector that fits / connects to the jack-side connector are arranged, and which reciprocates in the front-back direction on the test table (4). The unit (7) and a plurality of the tests, which are connected to the plug connector board (8) via a cable and are arranged at desired station positions of the self-propelled vehicle (3) to perform different functional tests. Machine (2)
And a control unit (20) for performing interface control of each of the constituents and transmitting information on whether the test is good or bad to the system control unit.
And a system control unit for operating the self-propelled vehicle (3) as desired in order to perform a series of functional tests of the electronic device (1).