TWI663405B - Automatic change apparatus for probe - Google Patents

Abstract

The invention relates to an automatic probe changing device. The above-mentioned automatic probe changing device includes: a rotating rod capable of rotating at a set angle with a set axis as a reference; a rotating plate connected to the rotating rod and rotating according to the rotation of the rotating rod; a plurality of fixed bodies to Two or more numbers are provided on the rotating plate, and are rotated in accordance with the rotation of the rotating plate, and a probe contacting a contact portion of the display device is fixed.

Description

   Automatic probe changing device   

The invention relates to an automatic probe changing device. In particular, the present invention relates to a device capable of automatically replacing a probe that tests whether a display device malfunctions by coming into contact with the display device.

With the development of information technology, the market for display devices as a connection medium between users and information is increasing. As a result, the use of liquid crystal display devices (Liquid Crystal Display), organic light emitting diode display devices (Organic Light Emitting Diodes Display), and display devices such as plasma display panel (Plasma Display Panel) is increasing.

Generally speaking, a liquid crystal display device in a display device may include a display device panel composed of a liquid crystal layer filled in a predetermined unit and a gap between a transistor array substrate and a color filter substrate; and a driving circuit portion for driving the liquid crystal. A display device panel; and a backlight unit for irradiating light to the liquid crystal display device panel.

That is, the display device is formed by relatively bonding a lower substrate and an upper substrate. The lower substrate defines a plurality of pixel regions by crossing a plurality of gate lines and a plurality of data lines. A color filter and a color filter are formed on the upper substrate. Common electrode. In this case, a spacer and a liquid crystal layer may be provided between the lower substrate and the upper substrate forming the liquid crystal panel to maintain a fixed distance between the two substrates.

In order to check whether the gate line and the data line of each pixel area are short-circuited or disconnected, a gate pad, a data pad, and a common voltage pad extending from the gate line and the data line are formed on the display device. The pads are connected to an inspection device (probe) for lighting inspection to provide various test signals.

The reason why the test steps are performed like this is that even though most of the steps of the display device are manufactured by mechanical automation, 100% of all products cannot be manufactured completely by mechanical motorization.

That is to say, defective products are inevitably generated in some parts. Due to the poor commerciality of such defective products, it is particularly important to inspect the defective products before filtering.

FIG. 1 is a diagram showing a conventional probe and a probe fixing device.

The probe 10 includes a cable port 11, a printed circuit board (PCB) 12, and a contact portion 13. The cable port 11 receives power and supplies the power to the printed circuit board 12. The power received by the cable port 11 is supplied to the printed circuit board 12. The contact portion 13 is aligned and in contact with a display device to be judged to be normal or not. The display device that is in contact with the contact portion 13 can confirm whether there is a malfunction (for example, whether it is turned on) by the probe 10.

The probe fixing device includes a fixing frame 40 and a fixing body 50 fixed to the fixing frame.

The probe 10 is fixed to the fixed body 50 so that the above-mentioned contact portion 13 is in contact with the contact portion of the display device and tests whether the display device operates.

When the probe 10 is manufactured, it is formed into a predetermined shape, and the contact portion 13 of the probe 10 is also shaped at the time of manufacture. Therefore, it is necessary to change the alignment of the probe 10 fixed to the probe fixing device to the contact portion of the display device to be contacted. The test operator separates the probe 10 from the fixed body to assemble a new probe 10 to the fixed body 50 and performs the test.

However, conventionally, the following problems have been encountered in the process of reassembling the probe to the fixed body 50.

First, problems arise in the correctness of assembly. When the contact portion of the probe and the contact portion of the display device are misconnected, a normal test cannot be performed. Therefore, it is important that the contact portion of the probe and the contact portion of the display device are accurately matched and come into contact. However, the probe is heavy, and therefore, in the process of fixing the probe to the fixed body, there is a problem that an operator cannot accurately fix the probe horizontally to the fixed body. That is, this means that the work of replacing the fixed probe can be changed in its precise assembly degree according to the skill of the operator. That is, a problem that depends on the skills of the operator may arise.

Second, there is the problem of wasting time. The operator performing the test needs to inspect a large number of display devices, and consumes a lot of time in disassembling the probe and reassembling it. This waste of time not only affects the operator's work results, but also comes down to a loss from the manager's perspective.

[Prior technical literature]

[Patent Literature]

Patent Document 0001: Korean authorized patent "PROBE APPARATUS USED FOR TESTING LIGHTING OF A DISPLAY PANEL".

Patent Document 0002: Korean authorized patent "Method for Light Test of Display Panel".

An object of the present invention is to provide an automatic probe changing device for solving the above problems.

That is, an object of the present invention is to provide an automatic probe changing device to solve the existing problems of separating a probe from a fixed body and relying on the skill of an operator in the process of reassembling a new probe.

Furthermore, an object of the present invention is to provide an automatic probe changing device that saves time in assembling a new probe to improve work efficiency.

The technical problems to be solved by the present invention are not limited to the above-mentioned technical problems. From the following description, those with ordinary knowledge in the technical field to which the present invention belongs can clearly understand other technical problems not mentioned.

The automatic probe changing device of the present invention includes: a rotating rod capable of rotating at a set angle based on a set axis; a rotating plate connected to the rotating rod and rotating according to the rotation of the rotating rod; a plurality of fixed bodies A plurality of probes are arranged on the rotating plate in two or more numbers, rotate according to the rotation of the rotating plate, and fix a probe contacting the contact portion of the display device.

Wherein, the present invention includes a motor, and the motor is connected to the rotation lever to impart a set turning force to rotate the rotation lever.

Wherein, a plurality of installation grooves are formed in the rotating plate, and the plurality of installation grooves are provided so as to be spaced apart from each other along the circumference of the rotation plate, and fixings corresponding to the installation grooves are respectively formed in the plurality of fixing bodies. A fixing unit is inserted into the installation groove and the fixing hole to fix the plurality of fixing bodies to the rotating plate, respectively.

Wherein, the fixed body includes: a support portion that is supported by being in contact with the rotating plate at least at a set area and is formed with the fixing hole; and an extension portion that extends from both ends of the support portion in one direction. Fix the above probe.

A cutting portion is formed in the rotating plate, and the cutting portion is cut at a distance between the extending portions extending from the two ends so that the rotating plate does not contact the extending portion.

Wherein, the rotating plate has a central portion, and when a virtual straight line is drawn from the central portion of the rotating plate toward each of the plurality of setting grooves, the virtual straight lines maintain an equal angle and have the same length.

The invention formed by the above-mentioned structure can solve the problem that the assembly of the existing probe depends on the skill of the operator, because the probe only needs to be fixed for the first time without the need to separate and reassemble the probe.

In addition, the present invention formed by the above structure does not need to replace any probe with another probe, and only rotates the turntable according to a set angle to make the contact portion of the new probe contact the contact portion of the display device, thereby saving the existing Time wasted while separating and reassembling the probe.

10‧‧‧ Probe

11‧‧‧cable port

12‧‧‧printed circuit board

13‧‧‧Contact

40‧‧‧ fixed frame

50‧‧‧Fixed body

60‧‧‧Fixed institutions

100‧‧‧Rotating plate

110‧‧‧ Cutting section

120‧‧‧ set slot

130‧‧‧bolt groove

140‧‧‧ support part insertion slot

200‧‧‧Fixed body

210‧‧‧ support

220‧‧‧ extension

240‧‧‧ Bolt holes

300‧‧‧ Control Department

400‧‧‧ Motor

500‧‧‧Position recognition sensor

FIG. 1 is a diagram showing a probe fixing device of the prior art.

FIG. 2 is a diagram showing an automatic probe changing device according to the present invention.

FIG. 3 is a diagram showing an automatic probe changing device according to another embodiment of the present invention.

FIG. 4 is a diagram showing an automatic probe changing device according to another embodiment of the present invention.

Hereinafter, an embodiment of the present invention will be described in detail by using illustrative drawings. However, this is not intended to limit the scope of the invention.

It should be noted that when adding element symbols to the structural elements of each drawing, even if the same structural elements are shown in different drawings, the same element symbols are used as much as possible. In the course of explaining the present invention, if it is determined that the description of the related known structure or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

In addition, the size, shape, and the like of the structural elements shown in the drawings may be exaggerated for clarity and convenience of explanation. Terms specifically defined in consideration of the structure and function of the present invention are only used to explain the embodiments of the present invention, and do not limit the scope of the present invention.

The automatic probe changing device of the present invention includes a rotating plate 100, a rotating rod, a motor 400, a plurality of fixed bodies 200, and a control unit 300.

The rotating plate 100 has a predetermined shape, and a center hole is formed in a central portion thereof.

The rotation lever is inserted and connected to a center hole of the rotation plate 100. Therefore, when the rotation lever is rotated, it is rotated in accordance with the rotation of the rotation lever.

In FIG. 2, the rotating plate 100 is shown as a circle as an example, but it is obviously not limited thereto. However, when the rotating plate 100 is rotating, it is preferable not to touch a display device which is arranged and fixed at a distance from the rotating plate 100. Therefore, the rotating plate 100 is preferably circular.

A plurality of installation grooves 120 are formed in the rotating plate 100 along the periphery of the rotating plate 100. The installation groove 120 connects the fixed body 200 and the rotating plate 100. That is, after the installation grooves 120 are arranged corresponding to the fixing holes, they can be connected by a connection mechanism that penetrates and connects the fixing body 200 and the installation grooves 120.

Among them, as an example, the connection mechanism may be a knob. However, the present invention is not limited to this, and it is not a problem to use any mechanism that can be fixed by other mechanisms.

Bolt grooves 130 spaced from the installation grooves 120 may be provided at both ends of the rotating plate 100. The bolt groove 130 assists the fixing of the fixed body 200 through the bolt hole 240 of the fixed body 200.

That is, as described above, when the fixing hole of the fixing body 200 is configured to correspond to the installation groove 120, the bolt holes 240 formed at both ends are configured to correspond to the bolt groove 130. In this case, the bolt is inserted into the bolt hole 240 and the bolt groove 130, so that the fixed body 200 and the rotating plate 100 are more firmly connected. This is to eliminate the possibility that, when the rotating plate 100 rotates, the plurality of fixed bodies 200 rotates together with the rotating plate 100, and rotates with the fixing mechanism 60 as an axis due to the rotational force thereof. To change the fixed position.

A plurality of installation grooves 120 of the rotary plate 100 are formed, and the fixed bodies 200 are provided in the plurality of installation grooves 120, respectively. That is, a plurality of fixing bodies 200 are fixedly provided on the rotating plate 100. The fixed bodies 200 provided can be connected to the probes 10 respectively, and will be described in detail when the fixed body 200 is described, so as to avoid repeated references.

The installation groove 120 of the rotating plate 100 is spaced apart from the center of the rotating plate 100 by the same distance and has an equal angle. That is, when a virtual straight line is drawn from the central portion of the rotating plate 100 toward each of the plurality of setting grooves 120, the virtual straight lines maintain an equal angle and have the same length. This is for the convenience of precise position control and control.

As described above, a plurality of fixing bodies 200 are fixed to the plurality of installation grooves 120 formed at the same distance from the center portion of the rotating plate 100, and the plurality of probes 10 are respectively provided in the fixing bodies 200. If the contact plate 13 of another probe 10 which is different from the configured probe 10 has a different distance from the contact portion of the display due to the rotation of the rotating plate 100, it becomes very difficult to precisely align the display. In addition, if the probe 10 is not fixed to the rotating plate 100 at an equal angle, when any one of the probes 10 is replaced with a probe 10 fixed at another position, the rotating angle of the rotating plate 100 is different every time. It is difficult to turn the rotating plate 100 to a precise position.

In order to solve such a problem, it is preferable that the plurality of setting grooves 120 have the same distance from the center portion of the rotating plate 100 and are arranged along the periphery of the rotating plate 100 at equal angles, respectively. However, it is obvious that the above can be changed depending on the situation.

The rotation lever rotates based on the set axis. The rotation lever is disposed in a center hole of the rotation plate 100. Therefore, the rotation plate 100 is also rotated in accordance with the rotation of the rotation lever. The rotation lever is connected to the motor 400.

Among them, the rotation lever is connected to the motor 400 so that the rotation axis is changed to be vertical.

Although not shown in the drawings of this specification as an example, the shaft of the motor 400 and the rotation lever may be connected by a bevel gear. Therefore, in FIG. 2, the motor 400 that rotates with the horizontal axis as a reference can rotate the rotation lever that rotates with the vertical axis as an axis.

Among them, as an example, the change of the rotation axis of the motor 400 and the rotation axis of the rotation lever has been described as a bevel gear, but it is not limited to this. A reduction gear or the like may be provided between the rotation lever and the motor 400 to change The rotation axis of the motor 400 is changed to vertical and transmitted to the rotation lever.

The motor 400 should be controlled to be capable of rotating in a first direction at a set angle and in a second direction opposite to the second direction at a set angle. Wherein, when the first direction is clockwise, the second direction means counterclockwise, and vice versa. As an example, the motor 400 may be not only the motor 400 or the servo motor 400.

The motor 400 is connected to the control unit 300 and performs a work according to a control signal. The control unit 300 controls the motor 400 by applying a first signal and a second signal to the motor 400. The motor 400 receiving the first signal of the control unit 300 rotates in the first direction, and the motor 400 receiving the second signal rotates in the second direction.

That is, the motor 400 can be passively operated by a signal applied from the control unit 300. Thereby, the rotation plate 100 is rotated by the set rotation of the setting direction of the motor 400, so that the rotation plate 100 can move the desired probe 10 among the plurality of probes 10 which have been set to the display device by rotation. position.

A plurality of the fixing bodies 200 may be provided on the rotating plate 100. The fixed body 200 includes a support portion 210 and an extension portion 220. The support portion 210 is a portion that is in contact with and supported by the rotating plate 100, and can support the probe 10 even if the probe 10 is fixed to the fixed body 200.

Referring to FIG. 2, the extension portion 220 is extended in one direction from both ends of the support portion 210, and the extension portion 220 is formed at both ends of the support portion 210 in a direction away from the center portion of the rotating plate 100. That is, two extensions 220 are formed. A first insertion hole is formed at an end portion of the two extension portions 220. The probe 10 is arranged at a separation distance between the two extensions 200 in a form connecting the separation distance between the two extensions 220, and a second insertion hole is formed at both ends, and the second insertion hole and the first insertion The holes correspond to each other, and bolts and nuts are inserted into the first insertion hole and the second insertion hole, so that the probe 10 is fixed to the fixed body 200.

A cutout portion 110 may be formed on the rotating plate 100 so as to be in contact with the support portion 210 of the fixed body 200 and not in contact with the extension portion 220. In the rotating plate 100, since the cutout portion 110 is formed, a communication portion that can communicate the upper and lower portions is formed between the two extension portions 220 of the fixed body 200.

Since the cutout portion 110 is a space connecting the upper and lower portions of the rotating plate 100, it can pass through various lines. Therefore, obstruction of the rotating plate 100 is prevented by the above-mentioned wires.

FIG. 3 is a diagram showing an automatic probe changing device according to another embodiment of the present invention.

In another embodiment of the present invention, a probe automatic replacement device is provided with a position recognition sensor 500. The position recognition sensor 500 is spaced from the inside of the extension portion 220 extending from both sides of the support portion 210.

Among them, as shown in FIG. 3, preferably, the position recognition sensor 500 is close to the extending portion 220. This is a position where the signal is prevented from being blocked by the connector of the probe 10.

The position recognition sensor 500 is connected to the control unit 300, and outputs a detection signal to the control unit 300. .

Thus, the rotary table rotates at a set angle in accordance with the rotation of the motor 400, so that when the configured probe 10 is changed to another probe 10, the correct position can be grasped only by simple rotation, so that it is easier to move The contact portion of the display is aligned with the contact portion 13 of the probe 10.

FIG. 4 is a diagram showing a probe automatic replacement device according to still another embodiment of the present invention.

According to still another embodiment, the rotation plate 100 is formed with a support portion insertion groove 140 having an equiangular shape and capable of sandwiching the support portion 210 of the fixed body 200.

That is, the fixed body 200 is connected to the rotating plate 100 for the first time by being clamped in the support part insertion groove 140, and is connected to the rotating plate 100 for the second time by a fixing mechanism 60 penetrating the insertion groove and the insertion groove. . The support part insertion groove 140 has the same shape as the support part 210, so that even if the rotating plate 100 is rotated, the fixed body 200 cannot move to a position other than the sandwiched groove.

Therefore, the probe 10 can be controlled more easily by performing the same rotation as the rotation of the rotating plate 100.

Although the present invention has been shown and described with reference to specific embodiments, it will be apparent to those skilled in the art that various modifications can be made to the present invention without departing from the technical idea of the present invention provided in accordance with the scope of the claims of the invention. And change.

Claims (4)

An automatic probe changing device includes: a rotating rod capable of rotating at a set angle with a set axis as a reference; a rotating plate connected to the rotating rod and rotating according to the rotation of the rotating rod; and a plurality of fixed bodies Is provided on the rotating plate in two or more numbers, and is rotated according to the rotation of the rotating plate, and a probe contacting the contact portion of the display device is fixed; wherein a plurality of setting grooves are formed on the rotating plate, and the plurality The plurality of installation grooves are provided so as to be spaced apart from each other along the circumference of the rotation plate; fixed holes corresponding to the plurality of installation grooves are respectively formed in the plurality of fixed bodies; and the plurality of installation grooves and the fixed holes are formed in the plurality of fixed bodies. A fixing unit is inserted to fix the plurality of fixed bodies to the rotating plate, respectively; wherein the plurality of fixed bodies each include a support portion that is supported by contact with the rotating plate at least in a set area, and is formed with the foregoing A fixing hole; and an extension portion extending in one direction from both ends of the support portion to fix the probe . The automatic probe changing device according to claim 1, wherein the automatic probe changing device further includes a motor, and the motor is connected with the rotating rod to impart a set turning force for rotating the rotating rod. The automatic probe replacement device according to claim 1, wherein a cutout portion is formed in the rotation plate, and the cutout portion is cut at a separation distance between extension portions extending from the two ends so that the rotation plate is not connected to the rotation plate. The extensions are in contact. The automatic probe changing device according to claim 1, wherein the rotary plate has a central portion, and when a virtual straight line is drawn from the central portion of the rotary plate toward each of the plurality of setting grooves, the virtual straight lines maintain an equal angle and have the same angle. length.