TWI472749B - Electrostatic attraction type inspection table for electric parts - Google Patents

Description

Electrostatic suction type test bench for electrical components INSPECTION TABLE FOR ELECTRIC PARTS

The present invention relates to an electrostatic attraction type detecting station for an electric component that is attracted and fixed by an electrostatic element to be placed on a detecting plate and transferred to a detecting position, and more particularly to an electrostatic attracting type for an electric component as follows. The inspection table directly electrodesives the detection plate by a rotating plate that rotates the detection plate, thereby electrostatically attracting electrical components placed on the surface of the detection plate, and does not require an electrostatic induction device.

Further, the present invention relates to an electrostatic attraction type detecting table for an electric component which assists an electric pair placed on an upper surface of the detecting plate by directly coating an auxiliary electrostatic sensing layer on a lower surface of the detecting plate other than the rotating plate The electrostatic attraction of the element makes it possible to further increase the electrostatic force.

In addition, the present invention relates to the following electrostatic attraction type detection for electrical components The table variably adjusts the size of the power source supplied to the auxiliary electrostatic induction layer and the rotating plate that is in contact with the auxiliary electrostatic induction layer and supplies power according to the detection environment such as the rotation speed of the detection plate and the number of electrical components to be transferred at the same time. The size is such that an electrostatic force can be applied to the electrical component under optimal conditions.

In general, in addition to passive components such as multilayer ceramic capacitors (MLCCs), resistors, and inductors, various electrical components including active components are required to detect the manufactured electrical components to automatically screen and remove defective products. The program can be adapted to mass production while also reducing the non-performing rate.

For this purpose, an electrical component appearance detecting device is used which supplies an electrical component to a transparent detecting plate (ie, a detecting table) at a component supply portion, and photographs the upper/lower parts of the electrical component placed on the rotating detecting plate by the camera, Front/back, and left/right sides, and analyze to automatically detect the presence of electrical components.

On the other hand, since the electrical component is transferred to the detection position where the camera is provided in a state of being placed on the rotating detection board, if the detection efficiency is increased, the rotation is performed at a high speed. When the detecting plate is turned, not only centrifugal force is applied to each electric component, but also the electric component is shaken with the vibration of the detecting plate.

Therefore, there arises a problem that the electrical component cannot be detected because it is dropped to the outside of the detecting plate, or the electrical component that is normally put into place is not suitable for detection due to poor posture, or cannot be detected due to uneven spacing between the electrical components. High pressure air is applied to separately separate electrical components that are discharged as good or bad.

In the above-mentioned Japanese Patent Laid-Open Publication No. 2011-59524, a technique is adopted in which the non-vibration portion 4 is placed on the returning table 2 (that is, the detecting plate) as the object to be detected. At this time, the workpiece W of the element is supplied with power by the conductive plate 15 provided by the DC power source 16 separated from the lower side of the return stage 2 by a predetermined distance, and the workpiece W is attracted and fixed by electrostatic induction.

However, according to the prior art as described above, since it is necessary to provide the conductive plate 15 in which the electrostatic induction phenomenon is generated in the return table 2, there is a problem that it is necessary to additionally provide an electrostatic induction device.

Further, since the conductive plate 15 is provided separately from the lower side of the returning table 2, the magnitude of the electrostatic force acting on the workpiece W is small, and the electrostatic force acting on the returning table 2 acts only on a partial section or the like, and the electrostatic force is not uniform. The ground acts on the entire returning table 2, so that there is a problem that the workpiece is deviated when an impact is applied from the outside or the workpiece W is discharged by the high-pressure air.

Further, since the conductive plate 15 and the DC power source 16 are provided on the lower side of the returning table 2, there is a space constraint, and it is difficult to provide a detecting camera for detecting the lower surface of the workpiece W on the lower side of the returning table 2. Etc.

Further, the number of workpieces W that are simultaneously placed on the returning table 2 is changed depending on the interval between the workpieces W, or the difference in the supply of one row of the workpieces W or the supply of the two rows, and the rotational speed of the returning table 2 varies. When the detection speed changes, it is necessary to change the magnitude of the applied electrostatic force to attract the workpiece W in an optimum state, but there is a problem that the change has not been previously matched.

The present invention has been made to solve the above problems, and provides the following An electrostatic attraction type detecting table for an electric component directly electrodesives a detecting plate by a rotating plate that rotates the detecting plate, thereby electrostatically attracting electrical components placed on the surface of the detecting plate, and does not require an electrostatic induction device.

Moreover, the present invention provides an electrostatic attraction type detecting station for an electric component which assists an electric device placed on the upper surface of the detecting plate by directly coating an auxiliary electrostatic sensing layer on the lower surface of the detecting plate other than the above rotating plate The electrostatic attraction of the component causes the electrostatic force to be large and uniform.

Further, the present invention provides an electrostatic attraction type detecting station for an electric component that variably adjusts a size of a power source supplied to an auxiliary electrostatic induction layer and a rotation in contact with the auxiliary electrostatic induction layer and supplies power according to a detection environment. The size of the board is such that electrostatic forces can be applied to the electrical components under optimal conditions.

In order to solve the above problems, an electrostatic attraction type detecting station for an electric component according to the present invention includes: a detecting plate for placing an input electric component and being made of a transparent material; and a rotating plate which makes the above The detecting plate rotates and electrically elects the detecting plate to fix the electric component to the detecting plate by electrostatic force; a rotating motor connected to a center side of the rotating plate to rotate the detecting plate; and a power supply device A static sensitive application power source is supplied to the above rotating plate.

In this case, it is preferable to further include an auxiliary electrostatic induction layer which is coated on the lower surface of the detecting plate and receives a static-sensing application power source from the rotating plate, and applies an electrostatic force to the electric component moved by being placed on the detecting plate.

Further, it is preferable that the auxiliary electrostatic induction layer is a transparent electrode which is coated with an edge portion of the detecting plate on which the electrical component is placed and which is made of a transparent material.

Further, it is preferable that the auxiliary electrostatic induction layer is a conductive electrode whose coating layer is formed on a portion other than the edge portion of the detecting plate on which the electric component is placed and which is made of a transparent or opaque material.

Further, it is preferable to adjust the size of the rotating plate in accordance with the magnitude of the electrostatic force induced to the electric component by the auxiliary electrostatic induction layer.

Further, it is preferable that an upper fixing plate for fixing the detecting plate together with the rotating plate is provided on an upper surface of the detecting plate.

Further, preferably, the power supply device includes: a voltage generating device for supplying a static-sensing application power source; a voltage line for transmitting a power source; a rotary power supply device provided at a center side of the rotary motor; and a contact with the rotating plate and supplying Contact terminal for the power supply.

Moreover, it is preferable that the power supply device includes a voltage regulator that can change the size of the electrostatic-sensing application power supplied to the auxiliary electrostatic induction layer in accordance with the detection environment.

According to the invention as described above, when the electric component placed on the detecting plate and transferred to the detecting position is suction-fixed by the electrostatic force, the detecting plate is directly electro-oxidized by the rotating plate that rotates the detecting plate. Therefore, the electrostatic components are attracted to the electrical components placed on the surface of the detecting board, and it is not necessary to separately provide an electrostatic induction device, and the camera can be freely disposed without being restricted by space when the camera is disposed at the lower portion of the detecting plate.

Moreover, the present invention assists electrostatic attraction of electrical components placed on the upper surface of the test panel by coating an auxiliary electrostatic sensing layer on the lower surface of the test panel. Therefore, not only the magnitude of the electrostatic force can be sufficiently increased, but also a uniform electrostatic force can be provided, and when the camera is disposed at the lower portion of the detecting plate, it can be freely disposed without being restricted by the space.

Further, according to the detection environment such as the rotation speed of the detection plate and the number of electrical components to be transferred at the same time, the present invention variably adjusts the size of the power supply supplied to the auxiliary electrostatic induction layer and the rotation of the auxiliary electrostatic induction layer and the supply of the power supply. The size of the board. Thereby, an electrostatic force can be applied to the electrical component under optimal conditions.

B‧‧‧Edge section

C‧‧‧Electrical components

H‧‧‧Assembled holes

S1‧‧‧ substrate

S2‧‧‧ support frame

W‧‧‧Workpiece

2‧‧‧ returning station

4‧‧‧No vibration department

15‧‧‧ Conductive plate

16‧‧‧DC power supply

100‧‧‧Electrostatic suction type test bench for electrical components

110‧‧‧Test board

120, 120a‧‧‧Auxiliary electrostatic induction layer

130‧‧‧Rotary motor

140‧‧‧Power supply unit

141‧‧‧Voltage generating device

142‧‧‧Voltage regulator

143‧‧‧voltage line

144‧‧‧Rotary power supply unit

145‧‧‧Contact terminal

150‧‧‧Support

151, 151a‧‧‧ rotating plate

152, 152a‧‧‧ upper fixed plate

153‧‧‧Connection block

154‧‧‧Insulation

1 is a partial cross-sectional view showing a conventional electrostatic attraction type inspection table; FIG. 2 is a partial perspective view showing an electrostatic attraction type detection table for an electric component according to a first embodiment of the present invention; and FIG. 3 is a view showing the present invention. Fig. 4 is a perspective view showing an electrostatic attraction type detecting table for an electric component according to a first embodiment of the present invention; and Fig. 4 is a cross-sectional view showing an electrostatic attraction type detecting table for an electric component according to a first embodiment of the present invention; 5 is a perspective view showing a detecting plate of an electrostatic attraction type detecting table for an electric component according to a first embodiment of the present invention; and FIG. 6 is a view showing an electrostatic attracting type detecting table for an electric component according to a second embodiment of the present invention. Fig. 7 is a perspective view showing a detecting plate of an electrostatic attraction type detecting table for an electric component according to a second embodiment of the present invention; and Fig. 8 is a view showing a second embodiment of the present invention for an electric component A cross-sectional view of an electrostatic attraction type inspection station.

Hereinafter, an electrostatic attraction type detecting stage for an electric component according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

First, as shown in Fig. 2, the electrostatic attraction type detecting stage 100 for an electric component according to the first embodiment of the present invention receives, for example, a multilayer ceramic capacitor (MLCC) or the like by an input device such as a line feeder F (line feeder). The various electric components C are conveyed and detected while photographing the respective faces of the electric component C, and can be separated and discharged according to the detection result.

At this time, as shown in FIGS. 3 and 4, the electrostatic attraction type detecting stage 100 for an electric component of the present invention includes a detecting board 110 that rotates and moves the electric component C thrown to the upper surface to the detection. a support portion 150 having a rotating plate 151 that supports the detecting plate 110 while electrically detecting the detecting plate 110, causing the electric component C to be attracted and fixed to the detecting plate 110, and a rotating motor 130 that causes the supporting portion 150 rotations.

Further, a power supply device 140 including a static-sensing application power supply to the rotating plate 151 is further included, as needed, an auxiliary electrostatic induction layer 120 coated on the lower surface of the detecting plate 110 and assisting the electrical components placed on the detecting plate 110. C applies an electrostatic force.

As an example of the electrostatic attraction type detecting stage 100 for an electric component of the present invention, it is usually provided on the substrate S1 and the support frame S2 fixed to the substrate S1, but other supporting members other than the above may be used. .

According to the configuration described above, when the electric component C is thrown into the detecting plate 110 at a constant interval, the detecting plate 110 supported by the supporting portion 150 is rotated by the rotary motor 130. Thereby, the electrical component C is transferred to the detection position where the camera is provided.

At this time, since the detecting plate 110 is electrically operated by the rotating plate 151 supplied with the power source by the power supply device 140, it is not necessary to separately provide an electrostatic induction device, and the electric component C can be attracted and fixed only by the support portion 150 that stably supports the detecting plate 110. .

Further, if necessary, the auxiliary electrostatic induction layer 120 that receives the electrostatic-sensing application power source through the rotating plate 151 can be further provided, whereby the electrochemical detection plate 110 induces an electrostatic induction phenomenon, and the electric component C can be attracted and fixed with a larger electrostatic force.

Therefore, in the past, it is necessary to additionally provide the conductive plate 15 corresponding to the electrostatic induction device for generating an electrostatic induction phenomenon, and the present invention uses the rotary plate 151 which stably supports the support portion 150 of the detection plate 110 as an electrostatic induction device. Therefore no additional electrostatic induction device is required.

Further, since the conductive plates 15 are previously spaced apart from the lower side of the returning table 2, the electrostatic force acting on the workpiece W is small and uneven, compared to the rotating plate 151 and the auxiliary electrostatic sensing layer 120 in the present invention. The detection board 110 is electrochemically detected, so that the electrostatic force is large and uniform.

In addition, since it is necessary to provide the conductive plate 15 and the DC power source 16 on the lower side of the return table 2, space constraints are imposed, and it is difficult to provide a detection camera or the like on the lower side of the return table 2. However, in the present invention, the rotary plate 151 is used as a static induction device, and the power supply device 150 is also connected to the auxiliary electrostatic induction layer 120 by the center side of the rotary motor 130. Therefore, when the detection camera or the like is installed, it is not subject to space constraints.

Further, even if the auxiliary electrostatic induction layer 120 is provided, since the auxiliary electrostatic induction layer 120 is integrally coated on the lower surface of the detecting plate 110, it is not subject to space constraints.

Further, conventionally, even if the number of workpieces W placed on the return table 2 is changed or the rotation speed of the return table 2 changes in accordance with the detection speed, the same amount of electrostatic force is always supplied. However, in the present invention, if the number of electric components C or the rotational speed of the detecting plate 110 is changed, as will be described in detail later, the size of the power supply and the size of the rotating plate 151 can be optimally changed, thereby being optimal. The state attracts the electrical component C.

More specifically, the detecting plate 110 is made of a transparent material, and the input electric component C is placed, and the lower surface of the transparent detecting plate 110 can be photographed under the electric component C to be detected. Of course, other planes other than this can also be detected by cameras provided at their respective desired positions.

Such a detecting plate 110 is usually made of a glass material, but is not limited thereto. Any material such as a transparent plastic may be used as long as it can be electrochemically charged and electrostatically sensitive.

The auxiliary electrostatic induction layer 120 is used to assist in generating an electrostatic induction phenomenon by electrochemically detecting the plate 110, and is directly coated on the lower surface of the detection plate 110. In particular, as shown in FIG. 5, in the case of coating the edge portion B including the detecting plate 110 on which the electrical component C is placed, a "transparent electrode" made of a transparent material is used as the auxiliary electrostatic sensing layer 120.

Since it is only necessary to perform coating in a manner including the edge portion B of the detecting plate 110 on which the electrical component C is placed, the edge portion B of the detecting plate 110 may be included as shown in FIG. 5 to be coated on the lower surface of the detecting plate 110. Overall, but in addition to this, it is also possible to coat from the edge portion B of the detecting plate 110 to the inner side to a certain portion.

Since the auxiliary electrostatic induction layer 120 is made of a conductive material, when the (+) or (-) power source is applied from the power supply device 140, the detection board 110 is electrified. Therefore, the electric component C placed on the detecting plate 110 is attracted and fixed by the electrostatic force, so that even if centrifugal force or vibration is applied, the force can be overcome and the posture of the electric component C can be maintained.

As an example, when a (+) power supply is applied to the auxiliary electrostatic induction layer 120 by the rotating plate 151, (-) electric charge is placed on the lower side of the detecting plate 110, and (+) electric charge is placed on the upper side of the detecting plate 110. Therefore, due to electrostatic induction, (-) electric charge is disposed on the lower side of the electric component C, and (+) electric charge is placed on the upper side of the electric component C, so that the electric component C is attracted to the detecting plate 110.

Further, since the transparent electrode as the auxiliary electrostatic induction layer 120 is made of a transparent material, even if the coating is performed so as to include the edge portion B in the lower surface of the detecting plate 110, the laminated detecting plate 110 and the auxiliary electrostatic sensing layer 120 as a whole are transparent. Thereby, the electric component C placed on the upper surface of the detecting board 110 is photographed by the camera on the lower side of the detecting board 110 and the lower surface of the electric component C is detected.

In order to show the coating position of the auxiliary electrostatic sensing layer 120 in FIG. 5, the auxiliary electrostatic sensing layer 120 is shown as colored in the drawing, but is actually transparent, and ITO (Indium Tin) can be used as the transparent electrode of the auxiliary electrostatic sensing layer 120. Various materials such as Oxide), graphene, SnO ₂ (tin oxide), ZnO (zinc oxide), and transparent carbon nanotubes.

However, although it is stated above that the auxiliary electrostatic induction layer 120 is coated, The test plate 110, but the "coating" refers not only to the direct coating on the lower surface of the detecting plate 110, but also to a method of applying a transparent electrode on the lower surface of the detecting plate 110 or a separately prepared transparent electrode layer using a transparent adhesive. The manner of bonding to the lower surface of the detecting plate 110.

The rotation motor 130 is used to rotate the detection plate 110. In the present invention, the rotation shaft of the rotation motor 130 is coupled to the center portion of the rotary plate 151, and the detection plate 110 is fixed to the rotary plate 151. Therefore, the rotary plate 151 is rotated by the rotary motor 130. When the detection board 110 is also rotated together.

As an example of such a rotary motor 130, a direct drive motor with a small amount of electric power is used, and the operating speed of the rotary motor 130 is adjusted by the microprocessor, so that the detection plate can be changed according to the monitoring speed. The rotational speed of 110.

In other words, when the detection efficiency is to be increased by increasing the detection speed, the operation speed of the rotary motor 130 is controlled to be increased. Conversely, when the detection accuracy is lowered by reducing the detection speed, the operation speed of the rotary motor 130 is controlled to be lowered.

The detection may be such that the electrical component C is supplied to the detecting plate 110 at a set pitch and one or two columns, and then the electrical component C placed on the detecting plate 110 is captured by the detecting camera. According to the detection result, the electric components which are judged to be excellent or not by the high-pressure air are separately ejected and separated and discharged to the collecting cylinder.

The power supply device 140 is for supplying a (+) or (-) electrostatic-sensing application power to the rotating plate 151, and is not particularly limited as long as it can be in contact with the rotating plate 151 and supplied with a static-sensing application power source, and includes, for example, static electricity. a voltage generating device 141 such as a chuck (Electro Static Chuck, ESC); a voltage regulator 142 that adjusts the magnitude of the power supply of the voltage generating device 141; a voltage line 143; a rotary power supply device 144; and a contact with the auxiliary electrostatic sensing layer 120 And the contact terminal 145 of the power supply is supplied.

In addition, the rotary power supply device 144 can use a slip ring as an example, and the conventional slip ring is used as a contact terminal provided on the rotor shaft for flowing a current from the outside to the rotor of the engine, and this is applied to this. According to the invention, the power source can be supplied to the rotating plate 151 through the rotation center axis of the rotary motor 130.

Therefore, when a high voltage is applied from the voltage generating device 141, it is applied to the rotary power supply device 144 via the voltage line 143, and the high voltage applied to the rotary power supply device 144 is supplied to the rotary plate 151 through the contact terminal 145. And, including the auxiliary electrostatic induction layer 120 In this case, it is transmitted to the auxiliary electrostatic induction layer 120 through the rotating plate 151, whereby this can be used as a static-sensing application power source.

In particular, since the voltage regulator 141 is provided in the voltage generating device 141, if the number of the electrical components C varies depending on the pitch of the electrical components C and the one or two columns supplied to the detecting board 110, the electrostatic power source is applied. The size can also be adjusted accordingly. Thereby, an electrostatic force of an optimum magnitude can be applied to each of the electric components C.

Of course, in order to adjust the detection speed, as the speed of the detection plate 110 is adjusted, the magnitude of the centrifugal force or the magnitude of the vibration changes, the size of the electrostatic dry application power source can be adaptively adjusted accordingly. For example, when the rotation speed of the detecting plate 110 is increased, the centrifugal force and vibration acting on the electric component C are also increased. Therefore, the size of the power supply can be increased, and the electric component C can be fixed with a sufficient electrostatic force.

However, although the push button type adjuster is exemplified as the voltage regulator 142 in FIG. 4, the present invention is not limited thereto, and the number of electric components C that are input by induction and the rotational speed of the detecting plate 110 may be used. A microprocessor or the like that automatically adjusts the voltage.

The support portion 150 includes: a rotary plate 151 that fixes the detection plate 110 on the lower side; an upper fixed plate 152 that fixes the detection plate 110 on the upper side; a connection block 153 that mutually assembles the above-described rotary plate 151 and the upper fixed plate 152; and is inserted into the rotary plate 151 An insulating layer 154 with the rotating motor 130.

The rotary plate 151 is horizontally disposed at a lower portion of the detection plate 110 in a manner of supporting a lower surface of the detection plate 110 coated with the auxiliary electrostatic induction layer 120, and is coupled to the rotary motor 130. Thereby, the detecting plate 110 is rotated in synchronization with the operating speed of the rotary motor 130.

Further, the rotating plate 151 is made of a conductive material and is electrically connected to the contact terminal 145. Therefore, the power source electrochemical detecting plate 110 is applied by the electrostatic sensation supplied through the contact terminal 145, and the electrostatic force caused by the electrostatic induction phenomenon acts on the electric component C placed on the detecting board 110.

However, the size of the rotating plate 151 can preferably be adjusted according to the magnitude of the electrostatic force induced to the electric component C by the auxiliary electrostatic sensing layer 120 as shown in Fig. 8, which will be described in more detail below.

Since the upper fixing plate 152 is horizontally disposed on the upper surface of the detecting plate 110, at the time of assembly, the upper surface of the detecting plate 110 is pressed while being fixed, and Since it is made of a conductive material, it is not electrically connected to the contact terminal 145.

Since the connection block 153 is assembled through the upper fixing plate 152, the detection plate 110, and the rotating plate 151, the upper fixing plate 152 and the rotating plate 151 are fixed while being pressed by the detection plate 110 inserted therebetween. Therefore, it is possible to prevent the vibration of the detecting plate 110 at the time of high-speed rotation, and to ensure stable rotation.

As shown in FIG. 5, an assembly hole H is formed in the center portion of the detecting plate 110. The assembly hole H is also formed in the upper fixing plate 152 and the rotating plate 151, respectively, so that the connecting block 153 can be inserted into the assembly hole H. Assembly.

The insulating layer 154 is inserted between the rotary plate 151 and the rotary motor 130 to function as an insulator. Therefore, even if power is supplied to the rotary plate 151 through the contact terminal 145, no current is applied to the rotary motor 130 disposed on the lower side of the rotary plate 151. flow.

Hereinafter, an electrostatic attraction type detecting stage for an electric component according to a second embodiment of the present invention will be described in detail with reference to the accompanying drawings.

In the first embodiment of the present invention described above, since the auxiliary electrostatic sensing layer 120 is also coated on the lower surface edge portion B of the detecting plate 110, it is necessary to use a transparent electrode (i.e., "transparent electrode" as the auxiliary electrostatic sensing layer 120. ).

However, the second embodiment of the present invention is different in that since the auxiliary electrostatic sensing layer 120 is not coated on the edge portion B of the detecting plate 110, it is not necessary to use a transparent electrode as long as it is a "conductive electrode". .

That is, as shown in Fig. 6, the electrostatic induction suction type electric component inspection table of the present invention includes: a detection plate 110 that rotationally moves the electric component C to the detection position; an auxiliary electrostatic induction layer 120a that applies an electrostatic force to the electric component C; and support detection The support portion 150 of the plate 110; the rotary motor 130 that rotates the detection plate 110 by the support portion 150; and the power supply device 140 that supplies the electrostatic induction application power to the auxiliary electrostatic induction layer 120a.

Moreover, the support portion 150 includes a rotating plate 151, an upper fixing plate 152, a connection block 153, and an insulating layer 154, and the power supply device 140 includes a voltage generating device 141, a voltage regulator 142, a voltage line 143, a rotary power supply device 144, and The principle in which the contact terminal 145 applies an electrostatic force to the electric component C placed on the detecting board 110 by these structures to attract the fixed electric component C is the same as that of the first embodiment of the present invention described above.

However, in the second embodiment of the present invention, as shown in Fig. 7, only in the detection board A portion of the coating other than the edge portion B on which the electrical component C is placed in the 110 has an auxiliary electrostatic sensing layer 120a.

Therefore, since the electrical component C can be directly seen through the lower side of the transparent detecting plate 110, regardless of whether or not the material of the auxiliary electrostatic sensing layer 120a is transparent, a "conductive electrode" which is a conductive material can be used.

In the case where the conductive electrode as the auxiliary electrostatic induction layer 120a is a transparent material, as described above, ITO, transparent graphene, SnO ₂ , ZnO, a transparent carbon nanotube, or the like can be used, and in the case of opacity, Use copper foil, etc.

Even in the edge portion B of the detecting plate 110, the coating layer on which the conductive electrode is applied can be sufficiently electrically ionized to the edge portion B of the detecting plate 110 which is not coated with the conductive electrode, so that the conductive electrode can also be used. The electrical component C generates an electrostatic induction phenomenon and attracts the electrical component C with an electrostatic force.

Next, an electrostatic attraction type detecting stage for an electric component according to a third embodiment of the present invention will be described with reference to the drawings.

The third embodiment of the present invention differs in that the size of the rotating plate 151a is adjusted to an optimum state in accordance with the size of the electrostatic power application power source.

That is, as shown in Fig. 8, the electrostatic attraction type detecting stage for an electric component of the present invention includes a detecting board 110, an auxiliary electrostatic sensing layer 120, a supporting portion 150, a rotary motor 130, and a power supply device 140.

Moreover, the support portion 150 includes a rotating plate 151a, an upper fixing plate 152a, a connection block 153, and an insulating layer 154, and the power supply device 140 includes a voltage generating device 141, a voltage regulator 142, a voltage line 143, a rotary power supply device 144, and Contact terminal 145.

At this time, in the third embodiment of the present invention, the size of the rotating plate 151a of the detecting board 110 is adjusted by the direct electrochemical detection board 110 or by the auxiliary electrostatic sensing layer 120 according to the magnitude of the electrostatic force induced to the electric component C (especially The diameter is manufactured and assembled.

Therefore, if the number of electric components C being simultaneously transferred is increased as the pitch supplied from the electric component C is narrowed or supplied in two rows at the same time or the centrifugal force is increased as the rotational speed of the detecting plate 110 is increased, the use is made. The rotating plate 151a having a relatively large size can increase the electrostatic force.

The example given in Fig. 8 is because the size of the rotating plate 151a is sufficiently large, that is, Although the entire detection board 110 can be sufficiently electrically provided without the auxiliary electrostatic induction layer 120, the auxiliary electrostatic induction layer 120 is not provided. However, it is obvious that the auxiliary electrostatic induction layer 120 is selectively provided.

On the contrary, in the case where it is necessary to reduce the electrostatic force, the detecting plate 110 can be made only by the rotating plate 151a by using the rotating plate 151a having a relatively small size, and if the auxiliary electrostatic sensing layer 120 is selectively provided, it can pass The electrostatic force from the auxiliary electrostatic induction layer 120 is reduced to prevent power waste, and the influence on peripheral devices can be minimized.

Of course, if the rotating plate 151a is increased or decreased, the size of the upper fixing plate 152 is preferably adjusted correspondingly.

The specific embodiments of the present invention have been described in detail above. However, it is apparent to those skilled in the art that the present invention is not limited to the specific embodiments, and various modifications and changes can be made without departing from the spirit and scope of the invention.

Therefore, the embodiments described above are provided to fully disclose the scope of the invention to those having ordinary knowledge in the technical field to which the present invention pertains, and are merely exemplary in all aspects, and not limiting, the present invention should It is defined by the scope of the patent application scope.

100‧‧‧Electrostatic suction type test bench for electrical components

110‧‧‧Test board

130‧‧‧Rotary motor

145‧‧‧Contact terminal

150‧‧‧Support

151‧‧‧Rotating plate

152‧‧‧Upper fixed plate

153‧‧‧Connection block

Claims (7)

An electrostatic attraction type inspection table for an electrical component, comprising: a detection plate for placing an input electrical component and being composed of a transparent material; a rotating plate that rotates the detection plate and electrifies the electrical component Detecting the board, the electric component is attracted to the detecting board by electrostatic force; a rotating motor is connected to a center side of the rotating board to rotate the detecting board; and a power supply device to the rotating board Supplying a static-sensing application power source; and an auxiliary electrostatic induction layer coated on a lower surface of the detecting board, and receiving the static-sensing application power source from the rotating board, applying static electricity to the electrical component moved by being placed on the detecting board force. According to the electrostatic attraction type detecting station for an electric component described in claim 1, the auxiliary electrostatic sensing layer is coated in such a manner as to include an edge portion of the detecting plate on which the electrical component is placed, and the auxiliary electrostatic sensing The layer is a transparent electrode made of a transparent material. According to the electrostatic attraction type detecting station for an electric component according to claim 1, the auxiliary electrostatic sensing layer is coated on a portion of the detecting plate on which the electrical component is placed, and the auxiliary electrostatic sensing The layer is a conductive electrode composed of a transparent or opaque material. The electrostatic attraction type detecting station for an electric component according to any one of claims 1 to 3, wherein the rotating plate is adjusted according to a magnitude of an electrostatic force induced to the electric component by the auxiliary electrostatic sensing layer the size of. According to the electrostatic attraction type detecting table for an electric component according to the fourth aspect of the invention, an upper fixing plate for fixing the detecting plate together with the rotating plate is provided on an upper surface of the detecting plate. An electrostatic attraction type detecting station for an electric component according to any one of claims 1 to 3, wherein the power supply device includes: a voltage generating device for supplying the static sensitive application power source; a voltage line for transmitting power; a rotary power supply device disposed on a center side of the rotary motor; and a contact terminal in contact with the rotary plate and supplying power. According to the electrostatic attraction type detecting station for an electric component according to claim 1 or 2, the power supply device includes a voltage regulator capable of changing the supply to the auxiliary electrostatic induction according to a detection environment. The electrostatic sense of the layer applies the size of the power source.