JP5403697B2 - Circuit board impact test apparatus and circuit board impact test method - Google Patents

Description

The present invention relates to a circuit board impact test apparatus and a circuit board impact test method.

Focusing on the operation failure of the main circuit board (M / B) used in PCs (personal computers) and the like, the soldering state of components and the contact condition (contact margin) of connectors and sockets are poor. There is a problem (problem that occurs intermittently) that seems to be caused by the problem.
Since these failures occur less frequently in normal usage environments, there are cases in which failures are detected without being detected by inspection, and failures occur at the user's site and re-repair is requested. .

  As a measure to reduce such troubles due to insufficient contact margin and reduce re-repair, a method such as tapping test is also used, but this method takes a long time to deal with intermittent trouble occurrence. Sometimes cross-checking is necessary. Therefore, the method of performing such a long-term inspection manually is not an efficient method, and the impact force and impact point applied to the circuit board change due to the existence of individual differences and the accumulation of fatigue. Instability in detection capability occurs, and there are concerns about the occurrence of secondary damage due to excessive striking force.

  As a known example technique in this field, for example, in Patent Document 1, a conventional failure analysis vibration device fixes an energized analyzed device to a test bench and vibrates the entire analyzed device. Since it is inferred from which trouble in which part of the device to be analyzed the contact failure has occurred, a technique for dealing with the fact that it often took time to identify the contact failure portion is disclosed. Specifically, a contact portion is provided at the tip of a vibration bar that is vibrated along the longitudinal direction by the driving force of the vibration portion, and this contact portion is pressed against an analysis location, and a vibration test is performed for each analysis location. It is configured.

  Further, for example, Patent Document 2 discloses a method for measuring the lifetime of a vibrating electronic component that can easily measure the lifetime due to vibration fatigue of the electronic component without affecting the electronic component. Specifically, using the board on which the electronic component is mounted as a test piece, repeated vibration tests are performed under varying vibration conditions while measuring the amount of strain on the board near the electronic component until the electronic component reaches the vibration fatigue life. Then, using the correlation between the strain amount and the vibration fatigue life as a database, the strain amount in the vicinity of the electronic component on the substrate mounted on the product is measured with a strain gauge, and the electronic component is calculated from the database based on the measured strain amount. The vibration fatigue life is estimated.

  Further, for example, Patent Document 3 discloses a technique intended to automatically set a keying condition of a tapping test apparatus to automatically perform a test and obtain an accurate test result. Specifically, a strain gauge is provided for each one or two or more key pressing units, and detects a strain generated when the key pressing unit keys the test object. The condition input unit inputs a key pressing condition for each key pressing unit. The keystroke control unit controls the keystroke unit according to the keystroke condition input from the condition input unit, and repeatedly performs a keystroke operation on the test object a plurality of times, and determines the keystroke pressure in each keystroke operation based on the output of the strain gauge. The keystroke operation is stopped when the output of the strain gauge is controlled.

JP 2008-216052 A JP 2010-122114 A JP-A-8-261879

By the way, as mentioned above, in the diagnosis and repair work of main circuit boards and the like mounted on products such as PCs, efforts are being made every day to improve quality. There is a demand for high inspection quality that prevents intermittent failures caused by poor contact or the like.
As a conventional method for detecting a contact margin failure such as a contact failure, a vibration test and a tapping test are known as described above. This vibration test is a device called a vibration tester that has a platform that vibrates vertically and horizontally. The test object is set, and the entire test object is vibrated to shake the internal components. Etc. are to be tested. Further, the tapping test described above means that a defective portion called a tapping point, which is preset on the DUT rather than the entire DUT, is hit directly with a hitting instrument such as a tapping hammer, thereby causing poor bonding or This is a technique for pinpointing an operation failure due to contact failure.

However, in the case of a vibration test, the test equipment itself is large, and it is necessary to fix the DUT so that it does not pop out due to vibration during the test. There is a problem that it cannot be used in the repair line.
For this reason, generally speaking, a vibration system test on a test / repair line or the like first selects a tapping test.
For example, in a place where the same model is flowing in large quantities such as a mass production factory, an automatic tapping tester incorporating a hammer using electric power or pneumatic power can be installed on the production line to eliminate manpower. .
However, in repair work, mainly repairing printed wiring boards such as M / B, which are the inspection targets of the circuit board testing apparatus of the present invention, the products handled are inevitably small lots of various types, and the working models are frequently changed. There are circumstances that occur.

From the above, in a testing machine that requires man-hours to correct the hammer position on the jig every time the model is changed, normal inspection cannot be used, and tapping is usually performed manually.
However, when tapping with human power, there are individual differences in the magnitude of the striking force and the position where it is struck, so there may be a difference in the detection accuracy of defective parts, and there is a risk that the hand will be mad and will not be allowed to hit. However, there is a problem in that it is impossible to deny the risk of causing a secondary failure by applying an excessive impact force.

Furthermore, in the case of an error that is difficult to reproduce, such as an intermittent failure, it is necessary to continue the tapping test with the same strength for a considerably long time. There is a problem that it is difficult for humans to implement.
For this reason, the development of a tool that can be easily handled and installed with a simple jig and that can automatically perform striking and motion determination has been a problem in the present invention.
The technique described in Patent Document 1 is similar in spirit and purpose to the present invention, and at first glance appears to be very similar to the present invention, but differs in the following points.
That is, in the technique described in Patent Document 1, the definition of the drive method of the object called the vibration unit is either a servo motor including a linear motor and a voice coil motor, or a hydraulic drive mechanism (Claim 2). There is a description that the contact portion and the vibrating bar vibrate along the longitudinal direction.

  Furthermore, the technique described in the above-mentioned Patent Document 1 describes that a vibration test is performed using this vibrating rod. From these points, it can be seen that this known device is a small-sized vibrator. . On the other hand, the actuator hammer of the present invention has a configuration in which a carbon shaft attached to a built-in neodymium magnet moves forward with a propulsive force generated by a drive current and generates an impact force by colliding with an impact tip at the tip. It is. In other words, this is an operation simulating a normal hammer, and is not a configuration that generates a weak impact such as “vibration”, but a configuration that generates a strong impact. Accordingly, the fact that the tip impact tip according to the present invention is free in the front-rear direction is not for generating a weak impact such as vibration, but for simply doubling the impact force by taking play. It is. Obviously, the technique described in Patent Document 1 described above does not have the same effect.

Further, as a difference from the present invention, the technique described in Patent Document 1 described above is based on the use of a servo motor, and this causes a problem that the drive circuit is complicated and expensive. As mentioned.
Compared to this, the actuator hammer according to the present invention is a component that replaces an ordinary hammer, and the control method controls the amount of impact force with the amount of drive current (current x time). Therefore, it is substantially sufficient to provide a simple switch function, and the manufacturing cost is very low.

  In the technique described in Patent Document 1, the details of the drive mechanism are not described, and thus it is unknown. However, the generated vibration is estimated as a vibration having a waveform like a simple vibration. In the method of holding by, because the excitation unit can not be fixed completely, even if the excitation rod is driven strongly by a linear motor / voice coil motor, the rise is sharp, and it is possible to obtain an impact waveform with a short duration, This is because it becomes difficult when the human hand moves.

  In contrast, the actuator hammer according to the present invention is not configured to generate continuous vibration, but configured to generate a single impact force. Of course, repetitive motion having a certain period is possible, but the basic operation of the actuator hammer according to the present invention is a single operation. However, even in this case, an impact waveform having a sharp rise can be obtained by pressing the impact chip against the substrate. By the way, it has been known that even if you shake it, it has been known that contact failure will occur if you play it, so that it will have higher detection power such as contact failure when applying impact than applying vibration. It has been known.

Next, the technique described in Patent Document 2 described above is a technique for measuring the life until an electronic component mounted on a board is fatigued by vibration and destroyed, and a problem occurs in circuit operation due to application of vibration or the like. This is a point different from the present invention in that it is not intended to check whether or not to do so.
The technique described in Patent Document 2 described above is a vibration endurance test in which vibration is continuously applied, and is clearly different in form from the single shot test as in the present invention.

Next, the technique described in Patent Document 3 described above is a technique having the same principle as the present invention, but the configuration of the apparatus is different. The purpose of the technique described in Patent Document 3 is a durability test by keystroke. For this reason, the occurrence of an alarm is detected by detecting distortion caused by the keystroke unit keying the test object with a strain gauge. As a result, the destruction of the casing is detected.
In contrast to this, in the present invention, for example, a technique for detecting when the memory address count-up stops even for a moment is used as an alarm generation detection means.
That is, the present invention is intended to eliminate the disadvantage of the tapping inspection for testing the contact margin on the main board (M / B) such as a personal computer (PC) so far. Therefore, it is intended to eliminate the inconvenience that the test operation is unstable due to a large difference due to individual ability.

The present invention is made possible by the development of a small actuator hammer that stably generates a constant striking force and impact waveform.
As a result, stable tapping that does not rely on manpower is possible, and it is possible to eliminate damage caused by insufficient hitting or circuit component damage due to excessive input when relying on manpower.
In addition to the development of a small actuator hammer, we have also developed an M / B operation status monitor. By combining these two, it becomes possible to automate the contact margin test and prevent oversight and prevent intermittent failures. Testing is also possible. With these developments, it has become possible to improve the accuracy and save labor of impact tests that detect failures due to insufficient contact margins.
Therefore, according to the present invention, manual tapping and operation check work can be mechanized with a simple device at low cost in a tapping test of a PWB (printed wiring board) including a single M / B such as a PC.

An object of the present invention, the impact test apparatus for circuit board to solve the problems described above, and Ru near to provide an impact test method of the circuit board.

In order to solve the above problems, the Ru good to the first aspect of the present invention, there is provided a shock test device of the circuit board, by which the test object is mounted including at least the circuit board, the function as PC comprising a test device which will have, a control device for controlling the test apparatus, the test apparatus, which both generates a mechanical shock, an actuator hammer for transmitting those the impact to be tested, of the test device Monitoring means for monitoring the operation, and the control device is notified from at least the monitoring means , setting means for inputting the setting including the impact strength of the actuator hammer, control means for controlling the operation of the actuator hammer according to the setting, and based on the information, the operation judging means for judging the operating status of the test device, a display for displaying the progress of the impact tests, including the determination result of the operation determination means That having a and stage.

When Ru good to a second embodiment of the present invention, there is provided a impact test method of the circuit board, at least by which the test object is mounted including a circuit board, controls the test apparatus comes to have a function as a personal computer a control device for, along with to generate a mechanical impact, a setting step of inputting a set comprising a striking intensity of the actuator hammer which transmits those the impact to be tested, the control device, the operation of the actuator hammer according to the setting and a control step of controlling, testing apparatus, and a monitoring step of monitoring the operation of the test apparatus, control apparatus, the operation determination step based on the information to be notified from at least the test device, to determine the operating status of the test device , controller, Ru and a display step of displaying the progress of the impact tests, including the determination result in operation determination step.

  As described above, according to the impact test apparatus for a circuit board of the present invention, the hammer hitting operation of the tapping test that has been conventionally performed by manual measurement and force adjustment is replaced with an actuator hammer, and the operation is performed. Since the operation check circuit replaces this check, in addition to preventing errors such as missed strikes and oversight of failures, it can also be used for long-term reproduction tests such as night-time aging, so the frequency of intermittent failures is low. Even if it is a failure, it is possible to improve the detection performance, and as a result, there is an effect that can contribute to improvement of the quality at the time of shipment of the product.

It is a block diagram which shows the whole structure of the impact test apparatus of the circuit board which concerns on embodiment of this invention. FIG. 2A is a configuration diagram showing the configuration of the actuator hammer 100, FIG. 2A shows the detailed configuration of the actuator hammer 100, and FIG. 2B shows the waveform of the drive current that drives the actuator hammer 100. FIG. FIG. 3 is a flowchart showing the operation of the circuit board according to the embodiment of the present invention, FIG. 3A shows the control operation of the control device 10, and FIG. 3B shows the test operation of the function test software 23, respectively. It is.

In the circuit board impact testing apparatus according to the present embodiment, a hand-held small automatic impacting apparatus (referred to as an “actuator hammer”) using a coil and a magnet is used.
In addition to this, a control device incorporating a drive circuit and an operation determination circuit, and an automatic contact margin test tool configured by a function test program or the like are also constituent elements.
Hereinafter, a circuit board impact test apparatus, a circuit board impact test method, an actuator hammer, and a computer program according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing the overall configuration of a circuit board impact test apparatus according to an embodiment of the present invention.
In the same figure, the circuit board impact test apparatus of the present embodiment comprises a control apparatus 10 and a test apparatus 20.
The control device 10 includes a USB connection unit 11 that performs connection with the test device 20, an operation determination unit 12 that determines an operation state of the test device 20 based on information obtained via the USB connection unit 11, and an actuator hammer 100 described later. A hammer driving unit 13 for controlling the operation of the motor, a setting input unit 14 for inputting settings such as impact strength and automatic / manual, and a display unit 16 for displaying the input data and the result of the operation determination. And a central control unit 15 that controls the operation of the entire control device 10. In addition, an optional number of additional hammer drive units 19 can be provided as optional components.

The test apparatus 20 includes an actuator hammer 100 that generates an actual striking force, a connection cable 101 that connects the hammer to the control apparatus 10, a function test software 23 that monitors the operation of the test apparatus 20, and a function test. A USB cable 21 that connects the software 23 and the control device 10 is provided.
In addition, an optional number of additional actuator hammers 100 ′ can be provided as optional components.
In this embodiment, the target of the tapping test is the test target 30.
Of course, the test object 30 does not belong to the configuration of the test apparatus 20, but by mounting the test object 30 on the test apparatus 20, the test apparatus 30 has a function as a PC of the test apparatus 20 as a whole. It is.

2 is a block diagram showing the configuration of the actuator hammer 100, FIG. 2 (a) shows the detailed configuration of the actuator hammer 100, and FIG. 2 (b) shows the waveform of the drive current that drives the actuator hammer 100, respectively. It is.
Inside the hammer body 104, a neodymium magnet 111 for generating impact force, a carbon shaft 105 connected to the magnet, a fluororesin sleeve 103 that supports the carbon shaft 105, a fluororesin plate 106 that the carbon shaft 105 strikes, and a neodymium magnet. A coil spring 108 that holds a fixed position 111 is incorporated.

An impact tip 107 for a hitting point is mounted on the back side of the fluororesin plate 106 that is movably attached back and forth. However, the tip is not coupled to the carbon shaft 105. A trigger button 109 and a magnet wire 102 are attached to the outside of the hammer body 104 around which the neodymium magnet 111 is bonded.
The material of the hammer body 104 itself may be, for example, a glass fiber reinforced resin tube whose inner side is coated with a fluororesin.
The magnet wire 102 is set so that the number of turns increases in the traveling direction of the neodymium magnet 111, not the uniform winding method. This is to increase the thrust force by increasing the magnetic force at the coil end face.

When a drive current (for example, the waveform for hammer 1 shown in FIG. 2A) sent from the hammer drive unit 13 to the magnet wire 102 according to the setting flows, the number of turns of the coil of the wire and the flowing current A magnetic field proportional to the product is generated.
The neodymium magnet 111 placed in the generated magnetic field receives a force corresponding to the strength of the generated magnetic field and starts moving.
A carbon shaft 105 is attached to the moving neodymium magnet 111, and the carbon shaft 105 collides with the fluororesin plate 106 to generate a striking force.

The function of the circuit board impact test apparatus of this embodiment will be described below with reference to FIGS.
First, the functions related to the test preparation of the impact test apparatus will be described together with necessary operations.
The object under test 30 (the object to be tested for tapping inspection) has a shape that shows a PC printed board for convenience, but the shape has no particular meaning. The circuit under test 30 can be any circuit component or product. For example, the entire PC, a printed board function test jig, or the like can be used as a test object for tapping inspection.

In this embodiment, the function test software 23 basically needs to operate on the test apparatus 20, and therefore it is assumed that the OS starts and functions as a PC. Based on this assumption, it is possible to detect even a margin type failure with a low occurrence frequency.
After the connection of each jig and the preparation of the actuator hammer 100 are completed, the test mode setting of the setting input unit 14 provided in the control device 10 is automatically or manually (a method in which the operator holds it by hand). Set.
In normal shipping inspection, etc., it is preferable to set the test mode setting to manual, and to set it automatically in the case of long-term aging.

Next, in the setting of the hit interval of the setting input unit 14, an interval time of the hit occurrence interval is set.
The display part 16 shall be comprised by indicators, such as LED. Since the display unit 16 displays the input information on the display, it can be confirmed whether or not the above-described setting input has been performed correctly.
The above is the preparation, and once it is set, the same setting is unnecessary until any setting value needs to be changed thereafter.
Next, a recording medium for recording the function test software 23 is set in the test apparatus 20, and the power is turned on. When the apparatus is activated and the function test software 23 starts operating, the display unit 16 displays The display “Tapping test in progress” is displayed, and the test preparation is completed.

Hereinafter, the test function of the impact test apparatus will be described with necessary operations.
When the start button of the control device 10 is pushed, the test starts. Here, when the test mode setting of the setting input unit 14 is set to the automatic mode, the actuator hammer 100 starts operation.
On the other hand, when the test mode setting of the setting input unit 14 is set to the manual mode, the operator holds the actuator hammer 100 with his / her hand and the impact chip 107 pressed against the tapping point returns slightly inward. Make sure.

When the operator holds the actuator hammer 100 so as not to be displaced and presses the trigger button 109 on the side surface of the hammer body 104, the actuator hammer 100 operates to perform tapping.
When the operator continues to press the trigger button 109, the hitting operation is repeated with the interval set in the hitting interval setting.
During this test, the operation LED of the display unit 16 lights up in green indicating normal operation, but in the unlikely event that a current such as a current for blow does not flow, red flashes and an alert is displayed.
When the test is stopped during the test in the automatic mode, the operation of the actuator hammer 100 is stopped by pressing the start button again, and the operation LED is turned off.
Also, when an error occurs, the operation of the actuator hammer 100 is stopped. In this case, the error display LED is lit in red to notify the occurrence of a failure.

The function test software 23 operating on the test apparatus 20 is software intended to detect each function of memory access, numerical calculation, USB communication, and instantaneous modulation of these operations with high accuracy. Yes, that is, software specialized for tapping tests. For example, regarding the memory access abnormality, the function test software 23 detects this when the memory address count-up stops even for a moment.
When a failure occurs, the function test software 23 displays an error on the display (not shown) of the test apparatus 20 and records the error in an error log (not shown). The operation determination unit 12 is notified of the exit. Further, the operation determination unit 12 notifies the display unit 16 of the occurrence of a failure by turning on an error display LED.
In addition, the USB connection unit 11 and the operation determination unit 12 monitor other failures such as line disconnection or data corruption. If these failures occur, the display unit 16 Turn on the error display LED.
Furthermore, when a serious failure that cannot be displayed is possible, it is possible to confirm the phenomenon with an OS error log or the like. The contents can be determined.

FIG. 3 is a flowchart showing the operation of the circuit board according to the embodiment of the present invention. FIG. 3 (a) shows the control operation of the control device 10, and FIG. 3 (b) shows the test operation of the function test software 23. , Respectively.
First, the control operation of the control device 10 will be described using the flowchart of FIG.
First, in Steps A20 to A23, after the controller 10 performs each setting manually in Steps A11 to A14, information corresponding to each setting is displayed on a display unit such as an LED of the display unit 16. Is displayed.
Next, in step A15, the control device 10 starts the test operation when the operator manually presses the start button for starting the test.
Next, in step A <b> 16, the control device 10 starts communication with the test device 20 via the USB connection unit 11.

Next, in step A17, when the USB connection is recognized and communication is started, the control device 10 sets a connection completion flag in the operation determination unit 12, and proceeds to step A18. If the USB connection cannot be recognized, the process proceeds to step A24.
In step A18, in the case of the automatic mode, the control device 10 supplies a drive current to the actuator hammer 100 via the hammer drive unit 13 according to a preset setting. Further, in the case of the manual mode, the control device 10 waits while monitoring the depression of the trigger button 109, and when the trigger button 109 is depressed, supplies a drive current to the actuator hammer 100 according to a previously input setting. .

When a drive current is supplied to the actuator hammer 100 by the above operations, the actuator hammer 100 is driven and a tapping test is started.
In step A19, the operation determination unit 12 of the control device 10 monitors the drive current supplied to the actuator hammer 100 via the sensor mounted on the hammer drive unit 13, and if the drive current is normal, the display unit The 16 operation LEDs are lit in green and the process returns to step A18 (that is, the above-described series of processing is repeated until the start button is pressed again or an error is detected). If the drive current cannot be detected or if an abnormal value is indicated, the process proceeds to step A25.
In step A24, the control device 10 instructs the display unit 16 to make the error display LED blink red.
In step A25, the control device 10 causes the display unit 16 to blink the operation LED in red.
During the above operation, the function test software 23 and the USB connection unit 11 continuously monitor the operation of the test apparatus 20 by the function of the operation determination unit 12.

Next, a test operation of the function test software 23 will be described with reference to FIGS. 1 and 2 and FIG. 3A using the flowchart of FIG.
First, in step B10, the function test software 23 prepares to execute control on the test apparatus 20.
Next, in step B <b> 11, the function test software 23 starts access to the memory installed in the test apparatus 20. Specifically, for example, a memory test such as an address shift is performed, and thereafter, it is confirmed that no inconsistency occurs in the data.
Next, in step B12, the function test software 23 verifies whether or not data inconsistency has occurred in the confirmation in step B11. If data inconsistency has occurred, the function test software 23 proceeds to step B18. If no data inconsistency has occurred, the process proceeds to step B13.

In step B13, the function test software 23 performs, for example, a data loopback test with the USB connection unit 11, and confirms that no inconsistency occurs in the data.
In step B14, the functional test software 23 verifies whether or not inconsistency has occurred in the data in the confirmation in step B13. If inconsistency has occurred in the data, the process proceeds to step B18. If no inconsistency occurs in the data, the process proceeds to step B15.
In step B15, the function test software 23 performs data transfer with the USB memory via the CPU (not shown) while performing, for example, floating point calculation. As a result, it is confirmed that no inconsistency occurs in the data.

In step B16, the function test software 23 verifies whether or not inconsistency has occurred in the data in the confirmation in step B15. If inconsistency has occurred in the data, the process proceeds to step B18. If no inconsistency occurs in the data, the process proceeds to step B17.
In step B17, the function test software 23 sets a normal end flag when a series of tests are confirmed to be normal. Thereafter, the process returns to step B11 until the information indicating that the start button of the control device 10 has been pressed is notified by USB communication or an error is detected, and the above-described series of processing is repeated.
In step B18, the function test software 23 issues an error Log when data inconsistency occurs, and notifies the operation determination unit 12 of the error through USB communication if possible.

  According to this embodiment, the hammer hitting operation of the tapping test that has been conventionally performed using manual measurement and force adjustment is replaced by the actuator hammer, and the operation check is replaced by the operation determination circuit. In addition to preventing errors such as missed hits and oversight of faults, it can also be used for long-term reproduction tests such as night-time aging. As a result, it can contribute to the improvement of the shipping quality of the product. More specifically, it has the following effects.

(1) The impact can be generated stably with the set output.
(2) The hitting means can be either automatic or manual switching, and the hitting cycle can be changed.
(3) The function of the operation determination unit 12 can automatically detect a momentary power failure or malfunction.
(4) Since the actuator hammer is small, it can be either held by hand or installed with a jig.
(5) Since it is smaller than a conventional device and easy to handle, a plurality of actuator hammers can be used.

  Note that at least a part of the processing of each component of the circuit board impact testing apparatus according to the present invention is executed by computer control, and the above processing is executed by the computer according to the procedure shown in the flowchart of FIG. The program may be distributed by storing it in a computer-readable recording medium such as a semiconductor memory, a CD-ROM, or a magnetic tape. A computer including at least a microcomputer, a personal computer, and a general-purpose computer may read and execute the program from the recording medium.

DESCRIPTION OF SYMBOLS 10 Control apparatus 11 USB connection part 12 Operation | movement determination part 13 Hammer drive part 14 Setting input part 15 Central control part 16 Display part 19 Additional hammer drive part 20 Test apparatus 21 USB cable 23 Software for function test 30 Device under test 100 Actuator hammer 101 Connection cable 102 Magnet wire 103 Fluororesin sleeve 104 Hammer body 105 Carbon shaft 106 Fluororesin plate 107 Impact tip 108 Coil spring 109 Trigger button 111 Neodymium magnet

Claims (6)

A test device that has a function as a personal computer by mounting a device under test including at least a circuit board;
A control device for controlling the test device;
With
The test apparatus comprises:
Together to generate a mechanical impact, an actuator hammer for transmitting those the impact the to be tested,
Monitoring means for monitoring the operation of the test apparatus;
Have
The controller is
Setting means for inputting settings including impact strength of the actuator hammer;
Control means for controlling the operation of the actuator hammer according to the setting;
Based on the information notified from at least the monitoring means, and operation determining means for determining the operating status of the test device,
Impact test apparatus for circuit board that have a display means for displaying the progress of the impact tests, including determination results of said operation determination means. The monitoring means monitors the operation of the memory of the test apparatus, and if there is an abnormality, notifies the fact to the operation determining means.
The circuit board impact test apparatus according to claim 1. It said actuator hammer is thus held in the hand of the holder or operator, when held by the operator's hand, comprising a trigger button for starting the actuator hammer
The impact test apparatus for a circuit board according to claim 1 or 2. The setting means inputs a setting further including a test mode indicating whether the actuator hammer is held by a holder or an operator's hand and the test is performed.
The circuit board impact test apparatus according to claim 3. It said actuator hammer impact test apparatus for circuit board according to any one of claims 1 3 which is driven by a magnetic field is caused in response to the drive current. By under test is mounted, including at least a circuit board, a control apparatus for controlling a test apparatus comes to have a function as a personal computer, which both generates a mechanical shock, the object to be tested with those the impact A setting stage for inputting settings including the impact strength of the actuator hammer to be transmitted to
Wherein the controller, and a control step of controlling the operation of said actuator hammer in accordance with the setting,
A monitoring stage in which the test apparatus monitors the operation of the test apparatus;
Wherein the controller, an operation determination step based on the information notified from at least the testing device to determine the operating status of the test device,
Wherein the controller, display phase and impact test method for the circuit board Ru with a to display the progress of impact test, including a determination result in the operation determination step.

Images