KR200366001Y1 - Automatic dome tester for regulating the tension of metal dome - Google Patents

Abstract

The sheet with the metal dome of each mobile phone of the present invention is mounted on the dome assembly and the metal dome is pressed according to the tension value to detect whether the metal dome is pressed and whether the dome and the PCB pattern are contacted or separated by the microcomputer. The present invention relates to a tension inspection device for a metal dome having an acceptable tension of quality by inspection for good and defective goods. The mobile phone testing device according to the present invention includes a base frame 10 and a respective mobile phone in a testing device. A test slide board 30 capable of placing the button sheet s on a PCB pattern, a dome assembly 40 capable of applying pressure to the metal dome d of the button sheet s, and the dome A drive interface 230 for interfacing the tension dome of the metal dome (d) exiting the assembly 40, an air tool kit 50 fixed at an upper position of the dome assembly 40, and the dome The control panel 20 for controlling the allowable pressure for the position of the assembly 40, the pressure sensor 250 for detecting the contact pressure of the metal dome (d), and is electrically connected to the control panel 20 The controller 260 adjusts the allowable pressure value through the contact or disconnection state of the metal dome d to determine the allowable tension or elastic force by the microcomputer 210, and receives the control command of the microcomputer 210. At least one first cylinder 270 that provides a predetermined pressure for each position corresponding to the mobile phone metal dome d between the LCD monitor 60 indicating the driving pressure and the air toolkit 50. ), And whether the dome is pressed by applying a rated load to a predetermined dome at the end of the piston rod to be connected to the first cylinder 270 and to operate by pressing the metal dome (d), and the metal dome (d) is removed from the sheet (s) At least one two cylinder 270a having a position contact pin 270x for detecting a state and an inverted state is provided.

Description

Automatic dome tester for regulating the tension of metal dome}

The present invention relates to a device for inspecting a button to be mounted on a product to be inspected. More specifically, for example, a sheet having a metal dome of a mobile phone is mounted on a dome assembly, and a metal dome is applied by applying a rated load of the metal dome according to a tension value. The present invention relates to a tension inspection device of a metal dome which detects pressing of the metal dome and inspects the dome by automatically checking whether the dome and the PCB pattern are contacted or separated by a microcomputer.

Recently, devices for inspecting buttons for use in a mobile phone having more than a dozen buttons, each of which has been given a unique function, have been proposed as devices such as a mobile phone and a TV remote control having miniaturization and multiple functions.

These products inspect their buttons for operation and ship only those that work correctly. As described above, the conventional inspection device for checking whether each button works properly puts a product to be inspected on a simple paper, and the operator presses each button to perform visual inspection.

This inspection method takes a lot of inspection time because the operator has to press all the buttons of the product in sequence, and the fatigue accumulates easily in the hands even in short working hours. Of course, there was a problem that excessive labor costs.

In addition, such a manual inspection method is difficult to accurately measure whether the strength is maintained within the allowable pressure range for each of the dozen or more mobile phone buttons to which each unique function is given, and also the tension or elasticity of many domes of the mobile phone button sheet is difficult to measure. There was a problem that must be remodeled because the height adjustment is not possible.

In addition, there is a device that exclusively checks the rated load of each cell phone button seat. This is a model change because the pressure of the dome is changed by the mechanical method of the cylinder position when the tension is changed by the spring action inside the cylinder. There was a problem that can take a lot of time to modify the dedicated inspection apparatus according to.

In order to solve the problems of the prior art, the purpose of the present invention is to put each cell phone button sheet to be tested on the dome assembly and apply a dome load to detect whether the dome is pressed and the dome and PCB patterns are contacted and separated. The present invention provides a tension inspection device for a metal dome that automatically checks an allowable tension on a cell phone button dome and a button seat by inspecting whether the device is checked by a microcomputer.

1 is a perspective view illustrating a testing device capable of inspecting each mobile phone button dome and adjusting the tension of a metal dome according to the present invention;

2 is a block diagram showing a test apparatus of the present invention in FIG.

Explanation of symbols on the main parts of the drawings

10: baseframe

20: control panel

30: Test Slide Board

40: dome assembly

50: Air Tool Kit

210: micom

250: pressure sensor

260: regulator

270,270a: cylinder

The present invention is to achieve the above object, the testing device that can check the tension of the metal dome to check the mobile phone button, the base frame 10, each of the cell phone button sheet (s) on the PCB pattern A test slide board 30, a dome assembly 40 capable of applying pressure to the metal dome d of the button sheet s, and a metal dome coming out of the dome assembly 40. Control to control the allowable pressure for the drive interface 230 for interfacing the tension test of the air, the air tool kit 50 fixed to the upper position of the dome assembly 40, and the position of the dome assembly 40. To determine the allowable tension or elastic force by the panel 20, the pressure sensor 250 for detecting the contact pressure of the metal dome (d), and the microcomputer 210 electrically connected to the control panel 20 Contact or separation phase of the metal dome (d) for A controller 260 that adjusts the allowable pressure value through the state, the LCD monitor 60 which receives the control command of the microcomputer 210 and indicates the driving state of the contact pressure, and is seated between the air toolkit 50. At least one first cylinder 270 that provides a predetermined pressure for each position corresponding to the cell phone metal dome d, and connected to the first cylinder 270 so as to be operated by pressing the metal dome d. Positioning pin (270x) for checking whether the dome is pressed by applying a rated load to a predetermined dome at the end of the piston rod, and detecting whether the metal dome (d) is removed from the seat (s) and is inverted. At least one two cylinder 270a having a) is provided.

Hereinafter, the present invention with reference to the accompanying drawings, FIGS. 1, 2, and 3 may be more clearly understood as follows.

1 is a perspective view showing a testing device that can adjust the tension of the metal dome inspecting each cell phone button sheet according to the present invention, Figure 2 is a partial view showing the key operating portion of the present invention in FIG. It is a block diagram.

As shown in Figure 1, the testing device that can adjust the tension of the metal dome (d) of the mobile phone button sheet (s) according to the present invention is installed on the test slide board 40 on the base frame (10) .

The test slide board 40 has a dome assembly 40, and the dome assembly 40 includes a sheet s and a sheet s having a plurality of metal domes d corresponding to respective mobile phone buttons. It includes a PCB pattern (p) that can be placed on the mounting.

The dome assembly 40 is opposed to a contact terminal 270x capable of applying tension or pressure to the dome d of the cellular phone button sheet s.

The dome assembly 240 is also a control panel panel for controlling the air tool kit 50 to be an upper pressure plate member fixed to the upper position of the dome assembly and the allowable pressure for the dome position of the dome assembly through the adjuster 262. (20), the output state of the control panel 20 is displayed through the LCD monitor 60 and can be confirmed through the mouse 70 and the printer (80).

The driving interface 230 has a mutual relationship between electrical signals and physical interconnection characteristics of voltage, frequency, and timing constituting tension tests of the metal dome (d) and the PCB pad (p) from the dome assembly 40. Match these conditions for the connection.

The adjuster 260 is electrically connected to the control panel 20 under the control of the microcomputer 210 and detects the digital tension in order to determine the tension or elastic force outside the allowable range applied to the dome assembly 40. The dragon pin 270x is adjusted by deriving an allowable value through the contact state of both sides facing the metal dome d of the dome assembly 40.

The allowable tension or elastic force stores the rated load in the memory 220 according to various manufacturers' models. In the present embodiment, the allowable range of tension to elastic force is 2 gr or less in tension resolution, and a total of 1.5 seconds with one operation time of 0.5 seconds off, 0.5 seconds on, and 0.5 total return time is preferable. It is preferable to determine by supplying digital pressure of the air pressure of 5-6Kg / cm to determine the supply air pressure.

The control panel 20 is controlled to precisely comply with the load value according to the position of the cylinder according to the set air pressure value of the air cylinder. In addition, the control panel 20 precisely maintains the air pressure pushed by the cylinder.

The air cylinders 270 and 270a do not include an elastic member such as a spring therein and are precisely controlled by the push force of the cylinder during air injection. This eliminates the disadvantage that even though the air pressure is constantly applied, the load value is inevitably changed according to the position of the cylinder in the existing cylinder simply returning its position due to the spring force having the piston and the spring in the cylinder. That is, since the cylinders 270 and 270a of the present invention are not equipped with a spring, the load value is precisely changed in proportion to a predetermined pressure required for the tension of the dome (d) of the mobile phone key button, thereby providing accurate pressure to the key button. Can be.

The at least one first cylinder 270 has a tension to elastic pressure of the metal dome (d) 500gr to 50gr, preferably an upper limit of 250gr, for each position corresponding to the cellular phone button seated between the toolkit 50. And a lower limit of 150 gr and a return of 120 gr.

The cylinders 270 and 270a also have a minute hole formed in the cylinder wall to prevent moisture from accumulating due to the occurrence of moisture caused by fixing the upper and lower positions of the cylinder to an air supply hose (not shown) connected to one end thereof. It is preferable to have micropores.

The cylinders 270 and 270x are provided with at least one upper limit, lower limit and return pressure by the load of the cylinder according to the air pressure value of the air cylinder for each position corresponding to the button of the cellular phone product seated between the air tool kit 50. At least one two cylinder 270a having a position contact pin at the end of the piston rod is connected to the first cylinder 270 and the first cylinder 270 to be operated by pressing the dome button of the mobile phone.

The air toolkit 50 has a position contact pin 270x at the end of the piston rod so that the button can be operated by pressing the button at a position corresponding to the button of the cellular phone product on which it is seated.

Further, in the automatic dome testing apparatus, the air cylinders 270 and 270a are two stage air cylinders 270 and 270a, and the microcomputer 21 determines the strength of the magnetic force generated by the magnet in the cylinder rod of the air cylinders 270 and 270a. Export the output to indicate the location. By developing two stages of air cylinders 270 and 270a, two mechanisms with different strokes can be used to simplify the mechanism. In addition, it can be used interchangeably, and it can be used interchangeably due to electrical wiring relationship.

FIG. 2 shows the electrical configuration of the automatic dome testing apparatus shown in FIG. 1. In the automatic dome testing device, the microcomputer controls the overall function and operation of the device.

The memory 220 stores a program whose operating state changes according to a temporal change of a predetermined allowable target value for driving the microcomputer 210, and implements the first memory unit 220a using ROM, EEPROM, or flash memory. When the load is applied to the dome (d) of each cell phone button sheet (s), the allowance for the button dome (d) and the metal sheet (s) generated in the process of releasing the pressing or pressing pressure of the dome (d) The second memory unit 220b stores possible tension to elastic data and is implemented using a RAM.

When the user uses the testing device, the input operation command transmits command data from the microcomputer 210 to the air cylinders 270 and 270a while performing the functions of the microcomputer 210 and the driving interface 230. On the other hand, the driving interface 230 is a dome assembly 240 that provides a tension force generated by the contact and the separation of the PCB pattern (p) and the dome (d), and a predetermined precise pressure to the dome assembly 240 It performs an interface function of the upper press plate or the air toolkit 50 having at least one first and second cylinders 270 and 270a to be provided.

The dome assembly 240 controls the allowable pressure operation of the dome assembly 240 under the control of the pressure regulator 260 that adjusts the pressure of the air cylinders 270 and 270a according to the control command of the microcomputer 210. The regulator 260 pressurizes and supplies air input from an air pump (not shown).

The at least one first and second cylinders 270 and 270a selectively suck or exhaust air under the control of the microcomputer 210 through the upper press plate 50 connected to the upper press plate 50, It maintains the pressure on the position contact pin (270x) generated in the intake and exhaust process.

In addition, the regulator 260 connected to the dome assembly 240 through the second cylinder 270a receives the control command of the microcomputer 210 and simultaneously drives the at least one first cylinder 270 simultaneously.

The position contact pin 270x contacts or separates the pressure state of the dome with respect to the button sheet s of the mobile phone PCB pattern of the corresponding manufacturer, and contacts or separates the pressure state with respect to the metal dome (d). Accordingly, under the command of the microcomputer 210, it is determined whether or not the dome is defective, and the pressure sensor 250 in the air tool kit 50 shown in FIG. 1 receives the output data of the position contact pin 270x and differentiates it. Detect the position detected allowable pressure.

The at least one first and second cylinders 270 and 270a change the driving signal based on the position data and the pressure data output from the position contact pin 270x and the pressure sensor 250, respectively.

That is, upon receiving a command to close the dome assembly 240 from the microcomputer 210, the first and second cylinders 270 and 270a are driven to the dome d of each PCB pattern p to contact the pins. Will move (270x). When the position contact pin 270x continues to move to the metal dome d and goes out of the allowable range of the allowable pressure, the contact speed of the position contact pin 270x drops instantaneously, and the pressure sensor 250 is such that Tension according to the speed change is detected.

Accordingly, the adjuster 260 stops after moving the position contact pin 270x with respect to the cellular phone button sheet s by a predetermined amount so that the dome assembly 240 does not apply excessive pressure after contacting the dome d. To be avoided.

On the other hand, even when the dome assembly 240 receives an operation command from the microcomputer 210 to be outside the allowable range of the allowable pressure, the adjuster 262 causes the cylinders 270 and 270a to reach the proper positions when the domes d reach the proper positions. The dome assembly 240 is protected by stopping driving.

Therefore, by driving the microcomputer 210 to the dome testing apparatus of the present invention and testing according to the time change of a constant tension target value, it is possible to ensure the failure prevention of the dome (d) and the PCB pattern (p), and to reduce the workforce Productivity can be improved.

Next, the operation of the automatic testing apparatus according to the present invention will be described.

The testing device that can adjust the tension of the metal dome (d) puts the dome sheet of the mobile phone on the PCB pattern and applies the rated load of the metal dome to detect the contact pressure due to the pressing of the dome, the metal dome and the dome sheet contact and In order to check whether the operator puts the cell phone button seat (s) on the dome assembly 240, and sequentially operating the air cylinder (270, 270a) on the air tool kit material 50, the air tool kit material (50) Air cylinders (270, 270a) on the sequential pressing the dome (d) of the mobile phone is selected and screened as good or bad goods, and the workers are then transferred to the next process.

Therefore, the mobile phone button seat s intermittently moves in the longitudinal direction of the test slide board 30, and thus the position contact pin 270x is operated by the second air cylinder 270a of height adjustment, so that the test slide board ( Press dome (d) of the cell phone button seat (s) seated on 30) sequentially.

In addition, when the user sets the load value through the LCD monitor 60 and the mouse 70 according to the manufacturer's model, the signal load value of the tension or elastic force allowable in the memory 220 is stored in the first memory 220a. Then, the load value is transmitted to the pressure sensor 250 by the microcomputer 210. At this time, the load value of the allowable tension to elastic force is the microcomputer 220 from the second memory unit 220b that stores the allowable tension to elastic data for the pressing or pressing pressure of the dome d constituting the button seat s. The air pressure is applied to the cylinder 270a by receiving a signal of.

In this way, pressing the dome (d) of the cell phone button sheet (s) first press the on / off switch to apply power, and then press the other domes (d) to check whether each signal is transmitted.

The signal transmitted as the dome d of the cellular phone button sheet s is pressed is transmitted to the microcomputer 210 through the receiver (not shown) of the position contact pin 270x, and the signal transmitted is transmitted again. The microcomputer 210 indicates which dome d is operating or which dome d is inoperable on the monitor 60. Based on the inspection as described above, it is determined whether the dome (d) of the cellular phone button sheet (s) works properly, and is classified as good or bad. This process is repeated to perform the inspection process.

As the above processes are continuously and sequentially and collectively, automation is possible.

Therefore, as described in detail above, the testing device that can adjust the tension of the metal dome for inspecting the dome of the mobile phone button seat according to the present invention is equipped with the button seat of the mobile phone to the dome assembly and the tension of the air tool kit by the air cylinder Detects whether the dome is pressed by applying the rated load of the dome according to the value, and automatically checks whether the dome and the dome sheet are contacted or separated by the microcomputer and maintains the allowable pressure range by precise measurement of good and defective products. You can keep the castle.

In addition, the tension inspection device of the metal dome that inspects the dome of the button seat of a mobile phone is used to change the model of the cylinder without changing the dome pressure by changing the tension of the dome in a mechanical manner. Working quickly, it is possible to unmann the inspection process while reducing the number of workers, improving productivity, eliminating troublesome processes and easily managing defect data.

Embodiment of the present invention is for the purpose of illustration, those of ordinary skill in the art, modifications, changes, replacements will be possible through the technical scope illustrated in this specification.

Claims (5)

In the testing device that can check the tension of the metal dome, Pressure may be applied to the base frame 10, the test slide board 30 for placing each cell phone button sheet s on the PCB pattern, and the metal dome d of the button sheet s. A dome assembly 40, a drive interface 230 for interfacing the tension dome of the metal dome d from the dome assembly 40, and an air tool kit fixed to an upper position of the dome assembly 40. 50, a control panel 20 for controlling the allowable pressure for the position of the dome assembly 40, a pressure sensor 250 for detecting the contact pressure of the metal dome (d), and the control panel ( A regulator 260 which adjusts an allowable pressure value through contact or separation state of the metal dome d to determine an allowable tension or elastic force by the microcomputer 210 electrically connected to the microcomputer 20; Accepts a control command of 210 and drives the contact pressure; At least one first cylinder 270 for providing a predetermined pressure for each position corresponding to the mobile phone metal dome d between the LCD monitor 60 and the air tool kit 50, and the first cylinder. 270 is connected to the 270 and apply a rated load to a predetermined dome at the end of the piston rod to operate by pressing the metal dome (d), the metal dome (d) is a seat (s) And at least one two-cylinder (270a) having a position contact pin (270x) for detecting a state of being left out and the state of being turned upside down. The method of claim 1, The drive interface 230 is characterized in that the electrical signals and physical interconnection characteristics of the voltage, frequency, and timing constituting the tension test of the metal dome (d) exiting the dome assembly 40 match these conditions for interconnection. Testing device that can adjust the tension of the metal dome, characterized in that. The method of claim 1, The regulator 260 is a testing device that can adjust the tension of the metal dome, characterized in that the tension pressure of the metal dome (d) to allow the position contact pin (270x) for each position to 500gr to 50gr. The method of claim 1, The memory 220 stores a signal load value of an allowable tension or elastic force and transmits the load value to the pressure sensor 250 by the microcomputer 210; And a second memory portion (22b) storing the allowable tension or elastic data for the pressing or pressing pressure of the metal dome (d). The metal of claim 1, wherein the position contact pin 270x contacts or separates the pressure state of the metal dome d of the button sheet s of the PCB pattern p of a corresponding manufacturer. Testing device to adjust the tension of the dome.