KR20120066242A - Apparatus of testing pad - Google Patents

Abstract

The present invention relates to a pad test apparatus, comprising: a touch unit for contacting or pressing a pad; A mounting unit to which the touch unit is mounted; A moving part mounted to the mounting part and moving the mounting part in a horizontal direction; A measuring unit detecting a pressure of the pad contacted or pressed by the touch unit, the touch unit including at least one pen contacting or pressing the pad; And an air cylinder configured to press the pen to fasten the pen so that the pen contacts or presses the pad. Accordingly, it is possible to inspect a large amount of products, it is possible to determine whether the keypad and the touch pad is defective without replacing the equipment or parts. Therefore, productivity is improved and production yield is increased by reducing production costs and securing reliability.

Description

Pad testing device {Apparatus of testing pad}

The present invention relates to a device for testing a keypad or touch pad, and more particularly, in a product having a keypad or a touch pad such as a mobile phone, a PDA, a tablet PC, a smart phone, a touch phone, The present invention relates to a pad test apparatus for verifying the reliability of a pad of a product described above by obtaining data on pressure change characteristics, keystrokes, and the like.

Products with keypads and touchpads In particular, mobile phones, PDAs, tablet PCs, smart phones, touch phones, etc., the touch pressure and the response speeds of the keypads and touchpads for various purposes such as text transmission, Internet games, and DMB are purchased. It became one of the important factors of the decision. Therefore, there is a need for a device for automatically determining whether there is a defect by comparing data input through a device for pressing a keypad and a touch pad of a product.

In addition, due to the compact product size and complicated components and designs, the possibility of defective products during the assembly process increases, and thus, an apparatus for inspecting the operation state through the completion inspection of the product immediately before shipment is required.

As shown in FIG. 1, a conventional keypad inspection apparatus fixes a measurement object 2 to a mounting plate 6, and includes a pressure detector 3, a probe 4, and an XYZ axis moving unit to inspect a keypad of a mobile phone. Doing.

However, the conventional keypad inspection apparatus has a disadvantage of only inspecting the keypad with respect to one cell phone, and if the keypad is continuously inspected with the probe 4, the pressure detection unit 3 together with the probe also needs to be replaced.

In addition, as shown in Figure 1, the structure of the conventional keypad inspection apparatus has a problem that an error occurs in the measurement because the vibration occurs when the probe is shaken.

In addition, the conventional keypad inspection device does not inspect the touch pad without undergoing a physical structure change to inspect only the keypad of the mobile phone. Therefore, the touch switch method of generating a predetermined electric signal by simply touching a part of the body (finger, etc.) to the corresponding part without pressing or turning is replacing the conventional push switch method used in home appliances or liquid crystal monitors. There is a drawback to not follow.

In addition, the touch method may be classified into a capacitive type and a pressure sensitive type according to the input detection method, and thus, a problem arises in that the equipment or parts of the inspection apparatus must be replaced according to the method of the touch pad to be measured.

The present invention has been made to solve the above-mentioned problems of the prior art, and an object thereof is to provide a pad test apparatus capable of determining whether a keypad and a touch pad are defective.

Another object of the present invention is to provide a pad test apparatus capable of shortening a setting time of a measurement position setting or the like according to a measurement object.

It is still another object of the present invention to provide a pad test apparatus that sets and adjusts a pressure value so that the pressure applied to the measurement object is actually applied to the measurement object.

Still another object of the present invention is to provide a pad test apparatus for fixing a measurement object so as not to move when measuring the measurement object and easily adjusting the measurement position according to various types of measurement objects.

According to the present invention, the pad test apparatus, the touch unit for contacting or pressing the pad; A mounting unit to which the touch unit is mounted; A moving part mounted to the mounting part and moving the mounting part in a horizontal direction; A measuring unit detecting a pressure of the pad contacted or pressed by the touch unit, the touch unit including at least one pen contacting or pressing the pad; And an air cylinder for urging the pen such that the pen is engaged to press or press the pen to the pad.

In addition, the pen is characterized in that any one of the pressure bar, touch bar, brass bar.

On the other hand, the moving unit and the horizontal beam; A mounting part support bracket coupled to the mounting part; A mounting part LM guide configured to couple one side with the horizontal beam and the other side with the mounting part support bracket to guide the mounting part to move in the longitudinal direction of the horizontal beam; Support for supporting both ends of the horizontal beam; A support LM guide for guiding the support to move forward and backward; It is characterized in that it comprises a support support bracket coupled to the support and the support LM guide to move the support.

Here, the mounting support bracket is coupled to both sides in the longitudinal direction of the mounting portion LM guide, the support bracket is characterized in that coupled to both sides of the support LM guide longitudinal direction.

In addition, the measuring unit is characterized in that it comprises a cradle on which the measurement object is mounted, and a load cell that is detachably positioned at the lower portion of the cradle to measure the pressure applied to the measurement object by the pen.

Here, the cradle is characterized in that it further comprises a fixing groove to which the jig for fixing the measurement object is fixed and a column indicating the position where the measurement object is mounted.

In addition, it characterized in that it further comprises a cable bearing bracket having a hose insertion hole for fixing the air hose connected to the air cylinder.

The apparatus may further include a control unit including a joystick for adjusting the position of the pen and a touch screen for finely adjusting the pen whose position is adjusted by the joystick.

Here, the control unit is characterized in that it further comprises a regulator for adjusting the pressure applied to the air cylinder based on the pressure value measured by the load cell.

The moving unit may further include a mounting unit driving motor configured to move the mounting unit in a longitudinal direction of the horizontal beam; And a support drive motor for driving the support to move in the longitudinal direction of the support LM guide, wherein the control unit controls the mounting unit drive motor and the support drive motor to enable the pen to be dot, line, or circular motion. It is characterized by.

In addition, the cap upper bracket; Cap central bracket; A cap lower bracket; A support shaft coupled to the cap upper bracket, the cap central bracket, and the cap lower bracket; And a pen coupling hole provided in each of the cap upper bracket, the cap middle bracket, and the cap lower bracket so that the pen is coupled, and further comprising a cap bracket to fix and support the pen to prevent bending of the pen. It is characterized by.

According to the configuration as described above, the pad test apparatus according to the present invention can be inspected a large amount of products because it is made mechanically, the keypad and touch pad by mounting a pressure rod, a touch rod, a brass rod without replacing equipment or parts It is possible to judge whether or not everyone is defective.

In addition, in the case of the probe of the conventional keypad inspection apparatus, when the probe is deformed by the continuous measurement, a problem arises in that the pressure detection unit equipped with the load cell mounted with the pen needs to be replaced. The cost savings can be achieved by not replacing the load cells with the pen.

On the other hand, by setting the measurement position of the pen macroscopically and then microscopically using the joystick and the touch screen of the controller, it is possible to shorten the setting time.

In addition, by forming a fixing groove and a column in the holder on which the measurement object is mounted, the measurement object is fixed so as not to move when the measurement object is measured, and the measurement position can be easily adjusted according to various types of measurement objects.

In addition, the measurement unit and the control unit of the pad test apparatus according to the present invention measures the pressure applied to the measurement object, so that the pressure value is reset and adjusted based on the measured pressure value so that the correct pressure is actually applied to the measurement object. Productivity and yield are increased by reducing the cost and reliability.

1 is a view showing a device for inspecting a conventional keypad,
2 is a perspective view showing a pad test apparatus according to the present invention;
3 is a front view showing a pad test apparatus according to the present invention,
4 is a rear perspective view of the pad test apparatus according to the present invention;
5 is a perspective view showing a second embodiment of the touch unit of the pad test apparatus according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail embodiments according to the present invention. Here, in describing the embodiments according to the present invention, the same reference numerals are used for the same components, and description thereof may be omitted as necessary.

2 is a perspective view showing a pad test apparatus according to the present invention, FIG. 3 is a front view showing a pad test apparatus according to the present invention, and FIG. 4 is a rear perspective view showing the pad test apparatus according to the present invention.

Referring to FIGS. 2 and 3, the pad test apparatus 1 according to the present invention includes a touch unit 10, a moving unit 20, a mounting unit 30, and a measuring unit 40.

The touch unit 10 is pressurized by the air pressure supplied through the air hose 51 to the at least one pen 11 and the pen 11 to contact or pressurize the pad to make contact with the pad or pressurize the pad. And a cylinder 12. Here, since the pen 11 is mounted on the air cylinder 12, the replacement of the pen 11 is easy not only during the maintenance of the pen 11 but also when the pen 11 is applied according to the measurement object.

As illustrated in FIGS. 2 and 3, the touch unit 10 may be equipped with a plurality of pens 11 and air cylinders 12. Here, the pen 11 mounted on the air cylinder 12 may be any one of a pressure rod, a touch rod, and a brass rod. Here, the pressure rod is used to check the pressure and operating state, such as the keypad, the touch rod is to check the operating state of the pressure-sensitive touch pad, the brass rod is to check the operating state of the capacitive touch pad air cylinder (12) ) Is mounted.

In addition, depending on the measurement object 2, a keypad and a touch pad may be used together. In this case, as shown in FIG. 3 and FIG. 4, the pad test apparatus 1 according to the present invention may have two air cylinders 12 mounted on the mounting unit 30 as one unit. The pen 11 is mounted on the air cylinder 12 by a combination of a pressure rod and a touch rod, and a combination of a pressure rod and a brass rod with respect to the measurement object that has a measurement object. .

5 is a perspective view showing a second embodiment of the touch unit of the pad test apparatus according to the present invention.

As illustrated in FIG. 5, the touch unit 10a of the pad test apparatus 1 of the present invention may configure three air cylinders 12 as one unit. Each of the three air cylinders 12 may be equipped with a pressure rod, a touch rod, and a brass rod, and operate the keypad or touch pad of the measurement target 2 without replacing the pen 11 with respect to the various measurement targets 2. Can be checked.

In addition, the touch units 10 and 10a may further include a cap bracket 13 for fixing and supporting the pen 11 and the air cylinder 12. Here, the cap bracket 13 is installed on the touch units 10 and 10a so that the pen 11 and the cylinder 12 are fixed and supported in the cap bracket 13, and the pen 11 is the measurement object 2. The pen 11 and the air cylinder 12 by dispersing the force received by the pen 11 and the air cylinder 12 by contacting or pressing the pad, and supporting the pen 11 and the air cylinder 12. Prevents bending deformation and the like. Here, as an example, the cap bracket 13 includes a cap upper bracket 14, a cap middle bracket 15, a cap lower bracket 16, a cap upper bracket 14, a cap central bracket 15, and a cap lower portion. A support shaft 18 for coupling the bracket 16 to be connected, and a pen coupling hole provided in the cap upper bracket 14, the cap middle bracket 15, and the cap lower bracket 16 so that the pen 11 is coupled. (17) can be provided. Therefore, the pen 11 is inserted into and fixed in the pen coupling hole 17, so that the cap bracket 13 disperses the pressure that the pen 11 contacts or is pressed against the pad of the measurement object 2 so as to disperse the pen ( 11) to prevent bending.

Hereinafter, in order to explain the operation of the pad test apparatus 1 according to the present invention, a direction in which the pen 11 approaches the measurement object 2 is called a Z-axis direction.

As shown in FIG. 3 and FIG. 4, the pad test apparatus 1 according to the present invention includes a moving unit 20, and the moving unit 20 is driven in an X axis direction and a Y axis by a driving unit (not shown). Will be moved in the direction.

Here, the moving part 20 is an example of being formed in a gantry type (Gantry Type), but is not necessarily limited to this may be formed in a variety of shapes.

The moving part 20 is a structure formed by lowering the support 22 at a wide interval in the middle of the horizontal beam 21 to form a leg. The horizontal beam 21 has an X-axis moving part, that is, a mounting part LM guide. (23) and the mounting portion support bracket 25 is installed, the lower portion of the support Y-axis moving portion, that is, the support LM guide 24 and the support support bracket 26 is formed so that the moving portion 20 freely on the XY plane I can move it.

In particular, the gantry type moving part 20 is used to lift or transport the machine, material, and parts beyond the distance between the supports 22, and the device for inspecting the conventional keypad shown in FIG. Measurement error occurs because vibration occurs during vibration, but since the moving part 20 of the pad test apparatus 1 according to the present invention forms a gantry type shape, vibration due to vibration does not occur. And no error occurs in checking the operation state of the touch pad. In more detail, in particular, the mounting support bracket 23 is coupled to both sides of the mounting portion LM guide 25 in the longitudinal direction, and the supporting support bracket 24 is coupled to both sides of the support LM guide 26 in the longitudinal direction. Do not cause shake by

In addition, the gantry-type moving part 20 moves the pen 11 smoothly and quickly and stably in circular and curved motions as well as moving in the X and Y axes of the pen 11. It is easy to check the condition. In this regard will be described in detail with respect to the control unit described below.

The mounting part 30 is connected to the touch part 10 and the moving part 20, and according to the movement of the moving part 20, the touch part 10 as described above in the X or Y-axis direction, circular and curved shape. Move to. Here, the mounting unit 30 is mounted to the moving unit 20, more specifically, to the X-axis moving unit 23 of the moving unit 10.

In addition, since the mounting unit 30 is equipped with a touch unit 10 on which the plurality of air cylinders 12 are mounted, the mounting unit 30 is mounted to the moving unit 20 so that the height can be adjusted so that the plurality of air cylinders ( The height of 12) can be easily adjusted to reduce the mechanical deviation to the maximum. Therefore, it is possible to precisely verify the operation of the keypad and the touch pad of the measurement object 2 of the pad test apparatus 1 according to the present invention.

The measurement unit 40 includes a holder 41 and a load cell 42 on which the measurement object 2 is mounted.

Here, the holder 41 may form a fixing groove 43 on the surface on which the measurement object 2 is mounted so that a jig (not shown) for fixing the measurement object 2 may be mounted. Therefore, when inspecting the operation state of the keypad and the touch pad of the measurement object 2, the jig is provided in the fixing groove 43 so that the measurement object 2 does not move so that accurate verification can be performed.

In addition, the base 44 may be further included on the surface on which the measurement object 2 of the holder 41 is mounted. Therefore, by forming the row 44 on the holder 41, it can be quickly and easily mounted on the holder 41 according to each measurement object 2, and also easy to adjust the position of the measurement object (2).

As shown in FIG. 3, the load cell 42 is detachably positioned at the bottom of the cradle 41 to measure the pressure applied to the measurement object. As shown in FIG. 1, in the conventional keypad inspection apparatus, when the keypad is continuously inspected by the probe 4, a direct force by the probe 4 is transmitted, and the pressure detection unit 3 together with the probe 4 is frequently used. Since a problem that needs to be replaced occurs, the pad test apparatus 1 according to the present invention places a load cell 42 under the cradle 41, thereby exerting a force applied to the measurement object 2 by the pen 11. Since the dispersion through the cradle 41 extends the replacement cycle of the load cell 42. In addition, the load cell 42 is detachably mounted to the lower portion of the cradle 41 and the pressure applied to the air cylinder 12 by the regulator 90 to be described below based on the pressure value measured by the load cell 42. Adjust. That is, the load cell 42 is used only when the pressure of the air cylinder 12 is adjusted, and after the pressure of the air cylinder 12 is adjusted, the load cell 42 is removed and stored in the load cell storage 71. Thus, the load cell 42 can be used for a long time.

The pad test apparatus 1 according to the present invention may further include a cable bear bracket 50. Here, the cable bearing bracket 50 is provided with a hose insertion hole 52, and is connected to the air cylinder 12 to the hose insertion hole 52 to fix the air hose 51 for supplying air. By fixing the air hose 51 with the cable bearing bracket 50, the air hose 51 is in direct contact with the equipment to prevent the occurrence of the bleeding phenomenon, the movement of the air hose 51 is also minimized to the air cylinder 12 ) To prevent the air hose 51 from being separated. In addition, the horizontal beam 21 is provided with a first link plate 53 in parallel with the horizontal beam 21 to fix the air hose 51 collected by the hose insertion hole 52 of the cable bearing bracket 50. By fixing the air hose 51, which is secondarily fixed by the first link plate 53, to the second link plate 54 installed in the main body 70, in parallel with the support LM guide 24, directly to the equipment. Prevents contact from rubbing In addition, a wire (not shown) electrically connected to the pen 11 or the device is also fixed by the cape bearing bracket 50, the first link plate 53, and the second link plate 54 to directly contact the equipment. It is possible to prevent the occurrence of the bleeding phenomenon.

The pad test apparatus 1 according to the present invention may further include a controller 60 including a joystick 61 and a touch screen 62. Here, the joystick 61 to adjust the approximate position of the pen 11 when the setting of the pad test apparatus 1 according to the present invention, the touch screen 62 is a pen 11 with the joystick 61 By finely adjusting the position after adjusting the position of), the setting time before inspecting the measurement object 2 is drastically shortened.

In addition, the pad test apparatus 1 according to the present invention may further include a load cell indicator 80. Here, the load cell indicator 80 represents the pressure value measured by the load cell 42. Accordingly, as shown in FIG. 4, the controller 60 adjusts the pressure applied to the air cylinder 12 using the regulator 90 based on the pressure value measured by the load cell 42.

In addition, the pad test apparatus 1 according to the present invention includes a mounting unit driving motor (not shown) driven to move the mounting unit in the X-axis direction, that is, the longitudinal direction of the horizontal beam, and the support in the Y-axis direction, that is, the support LM It may further include a support drive motor (not shown) that is driven to move in the longitudinal direction of the guide. Accordingly, the controller may control the movement of the moving unit 20 by adjusting the mounting unit driving motor and the support driving motor so that the pen 11 smoothly performs a dot, line, or original motion.

In addition, since the pad test apparatus 1 according to the present invention can classify the test result and track where the defect of the product is, it is possible to secure data that is the basis for repetitive elimination of the same defect and the problem solving. It may further include a storage device (not shown).

In addition, the pad test apparatus 1 according to the present invention may further include a main body 70 supporting the moving unit 20 and mounted with the measuring unit 40.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments. Those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope of the appended claims, The genius will be so self-evident. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

1: Pad Test Device 2: Measurement Object
3: pressure detection unit 4: probe
5: XYZ axis moving part 6: mounting plate
10: touch portion 11: pen
12: air cylinder 20: moving part
21: horizontal beam 22: support
23: mounting part LM guide 24; Support LM Guide
30: mounting part 40: measuring part
41: cradle 42: load cell
43: fixing groove 44: row
50: cable bearing bracket 51: air hose
60: control unit 61: joystick
62: touch screen 70; main body
80: load cell indicator 90: regulator

Claims (11)

In the pad test apparatus,
A touch unit for contacting or pressing the pad;
A mounting unit to which the touch unit is mounted;
A moving part mounted to the mounting part and moving the mounting part in a horizontal direction;
It is provided with a measuring unit for detecting the pressure of the pad contacted or pressed by the touch unit,
The touch unit
At least one pen in contact with or pressing the pad;
And an air cylinder for pressurizing the pen such that the pen is fastened so that the pen contacts or presses the pad. The method of claim 1,
The pen test pad, characterized in that any one of the pressure bar, touch bar, brass bar. The method according to claim 1 or 2,
The moving unit
A horizontal beam;
A mounting part support bracket coupled to the mounting part;
A mounting part LM guide configured to couple one side with the horizontal beam and the other side with the mounting part support bracket to guide the mounting part to move in the longitudinal direction of the horizontal beam;
Support for supporting both ends of the horizontal beam;
A support LM guide for guiding the support to move forward and backward;
And a support support bracket coupled to the support and the support LM guide to move the support. The method of claim 3,
The mounting support bracket is coupled to both sides of the mounting portion LM guide in the longitudinal direction, the support bracket support pad is characterized in that coupled to both sides of the longitudinal direction of the support LM guide. The method of claim 4, wherein
The measuring unit
A cradle on which the measurement object is mounted;
And a load cell detachably positioned at a lower portion of the cradle to measure a pressure applied to the measurement object by the pen. The method of claim 4, wherein
The cradle
A fixing groove to which a jig for fixing the measurement object is fixed;
The pad test apparatus further comprises a string indicating the position where the measurement object is mounted. The method of claim 5,
And a cable bearing bracket having a hose insertion hole for fixing the air hose connected to the air cylinder. The method of claim 4, wherein
A joystick for adjusting the position of the pen;
And a control unit including a touch screen for finely positioning the pen whose position is adjusted by the joystick. The method of claim 8,
The control unit
And a regulator for adjusting the pressure applied to the air cylinder based on the pressure value measured by the load cell. The method of claim 8,
The moving unit
A mounting part driving motor which is driven to move the mounting part in a longitudinal direction of the horizontal beam;
Further comprising a support drive motor for driving the support to move in the longitudinal direction of the support LM guide,
The control unit
And the pen adjusts the mount drive motor and the support drive motor to enable point, line, or circular motions. The method of claim 1,
Cap upper bracket;
Cap central bracket;
A cap lower bracket;
A support shaft coupled to the cap upper bracket, the cap central bracket, and the cap lower bracket;
A pen coupling hole provided in each of the cap upper bracket, the cap middle bracket, and the cap lower bracket so that the pen is coupled;
And a cap bracket for fixing and supporting the pen to prevent bending of the pen.

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