JP2009166003A - Parts sorting apparatus and apparatus for inspecting and sorting characteristics of electronic parts using this apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a parts sorting apparatus which can adsorptively carry and reliably store small-sized and very thin parts or the like having small mass in a storing box without damaging the parts, and an apparatus for inspecting and sorting characteristics of electronic parts using this apparatus. <P>SOLUTION: The present parts sorting apparatus includes a plurality of storing boxes, a provisionally receiving means which consists of a mesh plate and a sucking and discharging part and is arranged at a provisionally receiving position above each of the storing boxes, an adsorption nozzle, and a pressure control means which receives the parts by the provisionally receiving means and drops them into the storing boxes by controlling the pressure at this adsorption nozzle and at the sucking and discharging part. The apparatus for inspecting and sorting characteristics of electronic parts comprises a feeding table part 1, a camera-illuminating part 2, a feeding P&P part 3 which adsorbs these electronic parts one by one from the carrying out position of the electronic parts and carries and arranges them to the delivery position, a measuring part 5, and a parts sorting part 6. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a component classification device capable of adsorbing and transporting a small and extremely thin component with a small mass, etc., and securely storing the component in a storage box without damaging the component, and an electronic component characteristic using the device The present invention relates to an inspection classification apparatus.

Conventionally, many proposals have been made on an apparatus for conveying parts, a classification apparatus for conveying parts and storing them in a storage box. The “moving and discharging apparatus for articles” described in Patent Document 1 conveys electronic components and discharges them using only gravity.
The “small component supply / conveyance device” described in Patent Document 2 classifies components by suction conveyance using a negative pressure.
The invention of “Frequency Classifier for Crystal Resonator and Vacuum Suction Device” described in Patent Document 3 uses a so-called P & P device to suck and convey small and extremely thin parts with a small mass and store them in a storage box. At times, we have proposed a device that switches between evacuation and air delivery.
Japanese Patent No. 3998296 Japanese Patent No. 3532124 JP 2001-165978 A

In the apparatus described in Patent Document 3 described above, when the suction nozzle that sucks the component is charged with static electricity, the suction is turned off because the component is attached to the suction nozzle by static electricity and does not leave. At the same time, discharge air is used together. Due to the discharge air, the components vigorously jump out into the storage box, and there is a problem that the components are damaged because they collide with the wall surface of the storage box or the components already stored in the storage box.
The first object of the present invention is to solve the above-mentioned problems, and to suck and convey a small and extremely thin component with a small mass so that it can be securely stored in the storage box without damaging the component. The object is to provide a parts classification device.
A second object of the present invention is to provide an electronic component characteristic inspection and classification device using the component classification device.

In order to solve the above-mentioned problem, the component classification apparatus according to claim 1 according to the present invention is provided.
Multiple storage boxes;
Temporary receiving means consisting of a mesh plate and an intake / exhaust part and disposed at a temporary receiving position on each storage box;
A suction nozzle that picks up the component at the unloading position and conveys it to a position where the component faces one side of the mesh plate of the temporary receiving means;
And pressure control means for controlling the pressure of the suction nozzle and the suction / discharge section and receiving the parts by the temporary receiving means and dropping them into the storage box.

The component classification apparatus according to claim 2 of the present invention is the component classification apparatus according to claim 1,
The base of the suction nozzle and the temporary receiving means are supported by a common moving bracket, and are provided so as to be movable from the carry-out position to the temporary reception position, and the suction nozzle is located near the mesh plate at the temporary reception position and It can be moved to a position to leave.

  According to a third aspect of the present invention, there is provided the component classification apparatus according to the first aspect, wherein the suction / discharge portion is selectively connected to a negative pressure and a positive pressure so as to be disengaged from the temporary receiving position. It is characterized by this.

According to the present invention, there is provided an electronic component characteristic inspection and classification apparatus according to claim
A device for inspecting and classifying the characteristics of electronic components,
A supply table portion that rotates by mounting electronic components supplied from a supply hopper on the supply table;
A camera unit for imaging and processing the electronic components scattered on the supply table;
A supply P & P unit that picks up the electronic components one by one from the unloading position of the electronic components on the supply table based on the image-processed information of the electronic components, and conveys the electronic components to a delivery position;
A measurement unit that receives an electronic component on the measurement table of the measurement table unit at the delivery position and measures its characteristics to generate a classification signal;
One or more storage boxes, a mesh plate and a suction / discharge section, a temporary receiving means arranged at a temporary reception position on each storage box, and an electronic component is picked up from the unloading position of the measurement section and selected by the classification signal The suction nozzle that transports and retracts the electronic component to the position where the electronic component faces the mesh plate of the temporary receiving means of the storage box, and the electronic component is received and stored by the temporary receiving means by controlling the pressure of the suction nozzle and the suction / discharge portion And a component classification unit including pressure control means for dropping into the box.

An electronic component characteristic inspection and classification apparatus according to claim 5 of the present invention is the electronic component characteristic inspection and classification apparatus according to claim 4,
The supply table of the supply table section has an annular shallow groove, and is configured to apply rotational vibration in a direction opposite to the main rotation direction of the drive motor to eliminate overlapping of electronic components in the shallow groove. It is a feature.

An electronic component characteristic inspection and classification apparatus according to claim 6 of the present invention is the electronic component characteristic inspection and classification apparatus according to claim 4,
The measurement table of the measurement table unit is provided with a positioning mechanism having a pair of positioning claws for positioning the electronic component at a fixed position of the measurement table on which the electronic component is conveyed by the supply P & P unit. It is a feature.

An electronic component characteristic inspection and classification device according to claim 7 according to the present invention is the electronic component characteristic inspection and classification device according to claim 4,
In the measurement unit, a detector for measuring the distance to the measurement table surface is integrated with the upper electrode holder in order to maintain a constant gap between the upper electrode and the surface of the electronic component to be measured on the measurement table. It is arranged and configured.

An electronic component characteristic inspection and classification apparatus according to claim 8 according to the present invention is the electronic component characteristic inspection and classification apparatus according to claim 4,
To forcibly remove the inspected electronic components left on the measurement table,
The measurement unit is normally retracted upward at the measurement table carry-out position, and is provided with a discharge claw that uses a discharge slope that is lowered to the measurement table carry-out position surface during discharge. It is.

An electronic component characteristic inspection and classification apparatus according to claim 9 according to the present invention is the electronic component characteristic inspection and classification apparatus according to claim 4,
A camera and an illumination for image processing the electronic component are installed below the path for conveying the electronic component from the supply table to the measurement table by the supply P & P unit,
The electronic component is imaged while moving along the path, and the appearance of the electronic component is inspected by the image processing.

According to the parts classification apparatus according to the first to third aspects of the present invention, a small and extremely thin part with a small mass is sucked and transported from the part unloading part to the storing part by the suction nozzle and installed in the storing part. Can be stored in the storage box. In other words, the above-described apparatus provides an effect that can be reliably stored in the storage box without damaging the components.
More specifically, according to the configuration of the first aspect, since the parts are received and dropped into the receiving box by the temporary receiving means, the parts are not accelerated by the air but are gently dropped and classified.
According to the structure of Claim 2, the positional relationship of the said suction nozzle and the said provisional receiving means is maintained correctly.
According to the configuration of the third aspect, it is possible to ensure the detachment of the part from the provisional receiving portion. Note that the direction of departure is not downward.

The electronic component characteristic inspection and classification device according to claim 4 having a classification unit incorporating the component classification device as described above has an effect of being able to be reliably stored in the storage box without damaging the component. An electronic component characteristic inspection and classification apparatus can be provided.
More specifically, according to the configuration of claim 4, electronic parts such as crystal resonator pieces can be continuously inspected and classified without damaging the electronic parts.
According to the structure of Claim 5, the overlap of the electronic component on the supply table of the said supply table part can be eliminated.
According to the structure of Claim 6, the said electronic component can be positioned in the fixed position of the said measurement table.
According to the structure of Claim 7, the distance between electrodes can be maintained correctly.
According to the configuration of the eighth aspect, it is possible to reliably remove the remaining inspected parts.
According to the configuration of the ninth aspect, it is possible to inspect the appearance of the electronic component before measurement.

Embodiments of a component classification device according to the present invention and an electronic component characteristic inspection and classification device using the classification device will be described below with reference to the drawings.
FIG. 1 is a front view of an embodiment of an electronic component characteristic inspection / classification apparatus incorporating a classification unit according to the present invention. FIG. 2 is an embodiment of the electronic component characteristic inspection / classification apparatus according to the present invention. FIG. 3 is a front view showing a camera and illumination installed on the supply table of the embodiment of the electronic component characteristic inspection and classification apparatus according to the present invention.

The above embodiment is an apparatus for inspecting and classifying the characteristics of electronic components, and an electronic component 101 (see FIG. 2) is supplied from a supply hopper 102.
The supply table unit 1 provided rotatably is mounted with the electronic component 101 supplied from the supply hopper 102 and rotates. The camera / illuminating unit 2 is disposed on the supply table 103 of the supply table unit 1, and images and processes the electronic component 101 mounted on the supply table 103.
The supply P & P unit 3 picks up and conveys the electronic components 101 one by one from the take-out position of the electronic components 101 of the supply table 103 to a predetermined position based on the image processed information of the electronic components 101.
P & P is an abbreviation for PICKUP AND PLACE and is commonly used by those skilled in the art.
The measurement unit 5 receives an electronic component on the rotary table (measurement table unit 4) at the predetermined position, measures its characteristics, and generates a classification signal.

  The component classification device (classification unit 6, FIG. 1) is composed of one or more storage boxes, mesh plates and suction / discharge units, temporary receiving means arranged at a temporary reception position on each storage box, and measurement unit 5 to electronic components. A suction nozzle 601 (see FIG. 12) that sucks 101 and conveys it to a position where a part faces the mesh plate of the temporary receiving means of the storage box selected by the classification signal, and the suction nozzle 601 and the suction / discharge section It comprises pressure control means for controlling the pressure of 605 (see FIG. 12) and receiving the parts by the temporary receiving means and dropping them into the storage box.

[Detailed description of parts classification device]
The above-described parts classification device (classification unit 6, FIG. 1) will be described below with reference to FIGS.
11 is a plan view for explaining the positional relationship between the measurement table and the classification unit of the embodiment of the electronic component characteristic inspection and classification apparatus according to the present invention, and FIG. 12 is a front view of the measurement table and the classification unit shown in FIG. It is. As shown in FIG. 11, a plurality of storage boxes 614 are arranged in the upper row of the sub-base 617, and one of them is selected by the classification signal.
FIG. 13 is a front view for explaining an electronic component storage procedure when the component classification apparatus according to the present invention is used in the electronic component characteristic inspection classification apparatus according to the present invention.
14 is a cross-sectional view of the storage box as seen from the direction of arrows YY in the drawing of the apparatus shown in FIG.
The suction nozzle 601 shown in FIGS. 11 and 13 is fixed to the output shaft of the rotary cylinder 602. The suction nozzle 601 picks up the electronic component at the position indicated by the imaginary line in FIG. 13, then moves onto the storage box 614 selected by the lower classification signal in FIG. 11, and stores it by rotating the rotary cylinder 602. The electronic component is made to face the mesh portion of the mesh plate 615 disposed on the right wall of the box 614.

In this component classification apparatus, the suction nozzle 601, the mesh plate 615, and the suction / discharge portion 605 of FIG. 13 constitute a temporary receiving means that is arranged at a temporary receiving position on any storage box 614. A mesh plate 615 is provided for each storage box 614, and the suction nozzle 601 and the suction / discharge section 605 are provided so as to be integrally movable.
The parts to be classified are moved to a position close to the surface of the mesh plate 615 that is the inner wall of the storage box 614 while being sucked by the suction nozzle 601. It is preferable that the part is located at a position close to about 0.5 mm from the surface of the mesh plate 615. The small-diameter holes of the mesh plate 615 are a plurality of small-diameter holes smaller than the size of the component, and the thickness of the mesh plate 615 is preferably as thin as about 0.5 mm.
A suction / discharge section 605 having a suction / discharge hole 606 having both a suction function and a discharge function is provided at a position on a straight line facing the suction nozzle 601 and close to the back surface of the mesh plate 615. The opening of the suction / discharge hole 606 is preferably located at a position close to about 0.5 mm from the back surface of the mesh plate 615. Here, the suction / discharge section 605 is connected to a vacuum (adsorption air 607) and compressed air (discharge air 608) control device shown in FIG.

  At the above-mentioned relational position, the suction of the suction nozzle 601 is turned off, and at the same time, the suction function of the suction / discharge hole 606 of the suction / discharge section 605 is turned on to detach the component from the suction nozzle 601 and suck it onto the surface of the mesh plate 615. At the same time as the suction nozzle 601 is moved away from the illustrated position (see FIG. 13), the discharge function of the suction / discharge hole 606 of the suction / discharge section 605 is turned on to detach the component from the surface of the mesh plate 615 and fall and store in the storage box 614. Let

Further, the suction nozzle 601 and the suction / discharge section 605 are installed on the same bracket 609 (see FIG. 11), and are moved integrally from the part delivery place to the storage place.
According to this provisional receiving method, even if the suction nozzle that sucks a small and extremely thin component (for example, a crystal resonator piece) is charged with static electricity, the component is sucked and conveyed to the storage box. It can be securely stored without damaging it.

[Detailed Description of Electronic Component Characteristic Inspection and Classification Device Using the Classification Device]
The configuration of the electronic component characteristic inspection and classification apparatus briefly described above will be described in more detail.
In FIG. 1, a supply hopper 102 supplies electronic components to a supply table 103 (see FIG. 2) of the supply table unit 1 for supplying electronic components onto a measurement table 401 (see FIG. 4) of the measurement table unit 4. .
The supply table unit 1 includes a camera / illumination unit 2 for performing image processing on an electronic component supplied from the supply hopper 102 and mounted on the supply table 103.
The supply P & P unit 3 picks up the electronic components one by one from the electronic component take-out position of the supply table unit 1 based on the information obtained by image processing of the electronic components mounted on the supply table unit 1 in advance in the measurement table unit 4. Transport to a defined position.
An electronic component is conveyed to the measurement table unit 4 of the measurement unit 5 by the supply P & P unit 3, and a lower electrode for inspecting the characteristics of the electronic component is provided at a predetermined position of the measurement table unit 4 as described later. And has an upper electrode for testing the characteristics of the electronic component paired with the lower electrode of the measurement table unit 4.
The aforementioned classification device is used as the classification unit 6 of the device according to the present invention. As described above, the classification unit 6 is a storage box designated based on the result of the characteristic inspection in the measurement unit 5 on the plurality of storage boxes for storing the electronic parts and the inspected electronic parts on the measurement table. It has a mechanism for transporting and storing it.

[Supplying electronic components to the supply table and obtaining component information]
As shown in FIG. 2 and FIG. 3, the vibration type supply hopper 102 supplies the electronic component 101 so as to be scattered in the ring-shaped groove 104 of the supply table 103 at a position “a” of the supply table 103.

Removal of electronic components from the supply table:
As described above, the electronic components 101 scattered on the grooves 104 of the supply table 103 by the supply hopper 102 may occur. If the occurrence of such an overlap is image-processed by the camera 201 described later, it is determined that the state is abnormal, and conveyance to the measurement unit is avoided, and the overlapping electronic components 101 are left behind. It is necessary to eliminate this overlap. Therefore, the supply table 103 is vibrated by causing the pulse motor 105, which normally rotates the supply table 103 to rotate counterclockwise (see FIGS. 2 and 3), to rotate left and right in small increments. It is possible to eliminate the overlap of the electronic components 101 that are overlapping due to this vibration. The groove 104 of the supply table 103 described above has a shallow depth (to prevent the electronic component 101 from being shaken off from the supply table 103 by this vibration in order to reliably receive the electronic component 101 supplied by the supply hopper 102 ( 2 to 3 times the thickness of the electronic component). Overlap is eliminated by the vibration of the groove and the supply table.

Acquisition of information such as position and orientation of electronic components:
A camera 201 and an illumination 202 are installed on the supply table 103 (see FIG. 3). The camera 201 is disposed immediately above the location b (see FIG. 2) of the supply table 103, images the electronic component 101, and performs image processing.
The pulse motor 105 (see FIG. 3) rotates the supply table 103 in the counterclockwise direction (see FIG. 2). A suction nozzle 301 that is a part of the supply P & P unit 3 is arranged to suck and convey the electronic component 101 to a position c (see FIG. 2) of the supply table 103.

  As shown in FIG. 3, the captured image processing of the electronic component 101 within the imaging range of the camera 201 is performed by the camera 201, and information on the position, orientation, and overlap in the supply table 103 of each electronic component 101 is acquired. . In this way, information of all the electronic components 101 that are sequentially sent from the supply hopper 102 by the rotation of the supply table 103 is acquired. These pieces of information are given to the control unit 7 of the supply P & P unit 3 shown in FIG. 1, and, as will be described later, from the position c (see FIG. 2) of the supply table 103, the electrons are absorbed by the suction nozzle 301 of the supply P & P unit 3. The component 101 is sucked and conveyed based on the above-described information, and is transferred to the measurement table unit 4 shown in FIG.

[Operation of supply P & P unit, transfer of electronic components to measurement unit]
The supply P & P unit 3 operates the suction nozzle 301 to supply electronic components from the supply table 103 to the measurement table 401. FIG. 4 shows these positional relationships.
Supplying negative pressure to the suction nozzle 301:
The suction nozzle 301 is provided at the lower end of the rotating shaft 302. A guide case 303 provided on the support plate A of the basic structure of the supply P & P unit 3 (support plates A, B, and C are integrally provided) supports the rotary shaft 302 so as to be rotatable and liftable. Yes.
The rotary shaft 302 has a pipe shape and is provided with a rotary joint 308 at its upper end. An air tube 309 coupled to the rotary joint 308 is connected to a vacuum generator (not shown), and a negative pressure is applied to the suction nozzle 301. Is supplied.

Rotation control of the suction nozzle 301:
A timing pulley 304B is fixed to the rotating shaft 302 at a position above the support plate A. The support plate A is further provided with a pulse motor 306, and a timing pulley 304 A is provided on the output shaft of the pulse motor 306.
The rotation of the pulse motor 306 is transmitted to the timing pulley 304B via the timing belt 305.

Lifting control of the suction nozzle 301:
The support plate C of the basic structure of the supply P & P unit 3 guides the receiving plate 311 provided integrally with the vertical hook 307, and guides the linear guide 310 that guides the vertical movement of the vertical hook 307 integrated therewith. Is provided. The upper and lower hooks 307 are connected to the rotation shaft 302.
A swing bar 312 is fixed to the output shaft of the pulse motor 313 provided on the support plate B of the basic structure of the supply P & P unit 3.
As the pulse motor 313 rotates left and right, the swing bar 312 swings up and down.
This swinging motion is transmitted to the rotating shaft 302 via the receiving plate 311 and the vertical hook 307, and as a result, the raising and lowering control of the suction nozzle 301 is performed.

Horizontal movement of the basic structure of the supply P & P part 3:
As described above, the pulse motors 306 and 313 shown in FIG. 4 are integrally provided on the base structure substrate, and can be driven left and right in FIGS. 1 and 4 by a drive source (not shown).

General operation of P & P unit 3:
A command based on information of the electronic component 101 at the position c of the supply table 103 shown in FIG. 2 is input to the control device of each drive source of the supply P & P unit 3 configured as described above, and the electrons to be picked up The suction nozzle 301 moves down, picks up and rises on the component 101, and performs suction transport to a predetermined position of the measurement table 401.
Further, the electronic table 101 is rotated and corrected to a predetermined posture based on the posture information of the electronic component 101 sucked during the suction movement from the supply table 103 to the measurement table 401.
When the electronic components 101 are overlapped, the electronic components 101 are skipped and left on the supply table 103.

[Measurement of electronic components in the measuring section]
5, 6 and 7 show the measurement table unit 4. FIG. 5 is a plan view of the measurement table unit 4, and FIG. 6 is a side view thereof.
The measurement table 401 is connected to the output shaft of the pulse motor 403 and is rotatable. In addition, an insulating material 405 is buried in the measurement table 401, and a lower electrode 404 with a suction hole for inspecting the electrical characteristics of the electronic component is installed here.
In a state where the lower electrode 404 is located at a position indicated by d in the figure, the electronic component 101 is sucked and conveyed by the suction nozzle 301 shown in FIG. 4 and placed on the lower electrode 404 at a predetermined position of the measurement table 401. It is absorbed and held.

Electronic component positioning and holding mechanism 1:
The measurement table 401 is provided with a positioning mechanism for positioning the electronic component at a fixed position on the measurement table 401 on which the electronic component is conveyed by the supply P & P unit 3.
When the electronic component is sucked and conveyed by the suction nozzle 301 shown in FIG. 4 and placed on the lower electrode 404 at a predetermined position of the measurement table 401 and sucked and held, a slight positional deviation occurs. Therefore, the measurement table 401 has a positioning mechanism for positioning the electronic component at a certain position of the lower electrode 404. This positioning mechanism is an indispensable element for accurately measuring and inspecting electronic components.

  Positioning claw 1 406 and positioning claw 2 411 for correcting the position of the electronic component placed on the lower electrode 404 and sucked and held at a fixed position are incorporated at orthogonal positions. Each of these positioning claws includes an independent claw holder 407, a rectilinear guide 408 mounted with the claw holder 407, an air cylinder 410 for driving the rectilinear guide 408, and a tension spring 409 for returning the air cylinder 410 to drive. Are fixed to the same bracket 412 and mounted on the measurement table 401. The position where the electronic component is sucked and held on the lower electrode 404 by the supply P & P unit 3 is assumed to be a position brought close to the positioning claws 1 and 2 in anticipation of the occurrence of the above-described displacement. By operating these two positioning claws 406 and 411, the electronic component placed on the lower electrode 404 and held by suction is always corrected to a fixed position. After the position correction operation is completed, each positioning claw returns to its original position.

  FIG. 7 is a plan view showing a state in which the measurement table 401 is rotated to three defined positions. In the figure, the position d is the position for receiving the above-mentioned electronic component, and the position e is the measurement shown in FIG. 1 in which the upper electrode paired with the lower electrode 404 for inspecting the electrical characteristics of the electronic component is mounted. The part 5 is a position where the part 5 is installed, and a part f is a carry-out position for taking out to the classification part 6 shown in FIG. FIG. 7A is a view when the lower electrode 404 of the measurement table 401 is at a position d, and receives an electronic component in this state. FIG. 7B is a diagram when the lower electrode 404 of the measurement table 401 is at a position e, and the electrical characteristics of the electronic component are inspected in this state. FIG. 7C is a view when the lower electrode 404 of the measurement table 401 is at a position f, and is taken out to the classification unit 6 shown in FIG. 1 for storing the electronic components whose electrical characteristics have been inspected. The pulse motor 403 shown in FIG. 6 rotates the measurement table 401 from d to e, from e to f to the right, and from f to d to the left and returns to receive the next electronic component. This cycle is repeated.

FIG. 8 is a plan view of the measurement unit 5 installed at a position e of the measurement table 401 described with reference to FIG. 7B, and FIG. 9 is a direction of arrows XX in FIG. FIG. 10 is a front view of the measurement unit 5 viewed from above, and FIG. 10 is a side view of FIG. 9.
The upper electrode 501 is fixed to a holder 503, and the holder 503 is mounted on a rectilinear guide 506, and the rectilinear guide 506 is mounted on a slide table 508 that moves up and down by a ball screw 509. The ball screw 509 is connected to the output shaft of the pulse motor 511 through the coupling 510. By this mechanism, the upper electrode 501 can move up and down by the rotation of the pulse motor 511. When the upper electrode 501 is lowered and the upper electrode 501 is lowered even after contacting the electronic component, the linear guide 506 mounted on the slide table 508 can be used for the escape operation, so that the electronic component is damaged. Never give.

Arrangement of detectors to maintain a constant gap with the surface of the electronic component:
The characteristics of the electronic component can be inspected while maintaining a constant gap between the upper electrode 501 and the surface of the electronic component to be inspected on the measurement table 401. The measurement is performed by mounting a detector 502 (see FIG. 9) capable of measuring a distance on a holder 503 on which the upper electrode 501 is mounted.

Electronic component positioning and holding mechanism 2:
As described above, the measurement table 401 is provided with a positioning mechanism for positioning the electronic component at a certain position of the measurement table 401 on which the electronic component is conveyed by the supply P & P unit 3. This can also be realized by the configurations shown in 16 and 17.
15 is a plan view showing the positioning mechanism, FIG. 16 is a side view seen from the direction of arrows Z1-Z1 shown in FIG. 15, and FIG. 17 is a side view seen from the directions of arrows Z2-Z2 shown in FIG. FIG.

Similar to the description of FIG. 5 described above, the position where the electronic component is adsorbed and held on the lower electrode 404 by the supply P & P unit 3 is predicted by the supply P & P unit 3 and the positioning claw 406 and the positioning claw. 2 is set to a position close to 411.
A mechanism having 411 positioning claws 2 is mounted on the df line of the measurement table 401. This mechanism is the same as that described in 1 of the positioning and holding mechanism. A mechanism having 406 of the positioning claw 1 is disposed from the outside of the measurement table 401 at a position orthogonal to the positioning claw 411.
406 of the positioning claw 1 includes a claw holder 407 and a linear motion unit 413 on which the claw holder 407 is mounted, and is fixed to the outside of the measurement table 401 with a bracket 412.
The position of the electronic component sucked and held on the lower electrode 404 is corrected to a fixed position by advancing the positioning claw 411 and rotating the measurement table 401 counterclockwise to press the electronic component against the positioning claw 406. Is done. Here, the angle at which the measurement table 401 is rotated to the left is a value necessary for position correction calculated in advance.

Ejection mechanism for forced removal of inspected electronic components:
It is necessary to forcibly remove the inspected electronic components left on the measurement table.
18 is a plan view in which a discharging mechanism for forcibly removing the inspected electronic components left on the measurement table is arranged in the positioning mechanism described above, and FIG. 19 is a side view of the discharging mechanism in FIG. is there. In a state where the measurement table 401 is at the position f in FIG. 18, the inspected electronic component is sucked by the suction nozzle 601 (see FIG. 11) of the classification unit 6 and conveyed to the classification unit 6. If a suction error occurs at this time, the electronic component remains on the measurement table 401. On the remaining electronic component, another electronic component is placed in the next cycle. In order to avoid this situation, it is necessary to forcibly remove the remaining electronic components.

A discharge claw 701 of the discharge mechanism is held by a claw holder 702. The claw holder 702 is fixed to an air-driven linear motion unit 703, and is fixed to a base plate (not shown) via a bracket 704. . The discharge mechanism is installed between e and f shown in the figure at a position close to f and at a position that does not interfere with the positioning mechanism on the measurement table 401 on the trajectory of rotation of the electronic component on the measurement table. When the inspected electronic component rotates from e to f shown in the figure, the discharge claw 701 is avoided by the linear motion unit 703, and when the electronic component reaches the position f shown in the figure, the linear motion unit. 703 causes the discharge claw 701 to descend to a position where it comes into contact with the surface of the measurement table 401.
The discharge claw 701 is configured to be pressed against the surface of the measurement table 401 by a spring (not shown). The tip of the discharge claw 701 is cut obliquely as shown in the figure.
If the electronic component remains on the measurement table 401 for the above-described reason when the measurement table 401 rotates from the position f to the position d shown in the drawing in this state, the electronic component hits the oblique cut surface of the discharge claw 701. It is discharged to the outside of the measurement table 401 along this cut surface. The discharged electronic components are stored in a receiving box 705 placed outside the measurement table 401.

[Camera layout to acquire other image processing data]
In the electronic component characteristic inspection and classification apparatus described above, a camera and illumination for image processing of the electronic component are installed below the path through which the electronic component is conveyed from the supply table 103 to the measurement table 401 by the supply P & P unit 3. While the electronic component is moving along the path, the appearance defect of the electronic component can be inspected by image processing.

FIG. 20 shows a modification in which a camera 801 and an illumination 802 for image processing of an electronic component are installed below a path through which the electronic component 101 is conveyed from the supply table unit 1 to the measurement table unit 4 by the supply P & P unit 3. It is a front view.
The picked-up image processing is performed by the camera 801 installed at the j position on the moving path where the electronic component sucked by the supply P & P section 3 is conveyed to the i position of the measurement table section 4 in the drawing. The image processing can inspect the appearance defect of the electronic component and perform defect selection.

[Modifications] Various modifications can be made to the embodiment described in detail within the scope of the present invention. Although an example of a crystal resonator is shown as an example of the electronic component, it can also be used for classification of other electronic components, for example, a base plate of a ceramic oscillator.

It is a front view of the Example of the electronic component characteristic test | inspection classification | category apparatus incorporating the classification | category part by this invention. It is a top view which shows the condition where the electronic component was scattered by the groove | channel of the supply table in the Example of the electronic component characteristic test | inspection classification | category apparatus by this invention. It is a front view which shows the camera and illumination which were installed on the supply table of the Example of the electronic component characteristic test | inspection classification | category apparatus by this invention. It is a front view of the supply P & P part of the Example of the electronic component characteristic test | inspection classification | category apparatus by this invention. It is a top view of the measurement table part of the Example of the electronic component characteristic test | inspection classification | category apparatus by this invention. It is a side view of the measurement table part shown in FIG. FIG. 6 is a plan view showing a state in which the measurement table shown in FIG. 5 is rotated to three defined positions. It is a top view of the measurement part installed in the location of e of the measurement table shown in FIG. It is a front view of the measurement part seen from the arrow XX direction in the figure of FIG. It is a side view of the measurement part shown in FIG. It is a top view of the measurement table and classification | category part of the Example of the electronic component characteristic test | inspection classification | category apparatus by this invention. It is a front view of the measurement table and classification part shown in FIG. It is a front view for demonstrating the storage procedure of the Example of the classification device by this invention. It is sectional drawing of the storage box seen from the arrow YY direction in the figure of the apparatus of FIG. It is a top view which shows the Example of the other positioning holding mechanism which shows the positioning holding mechanism provided in the measurement table part of the Example of the electronic component characteristic test | inspection classification | category apparatus by this invention. It is arrow Z1-Z1 direction view shown in FIG. It is arrow Z2-Z2 direction view shown in FIG. It is a top view which shows the discharge mechanism of an electronic component. It is a side view which shows the discharge mechanism of FIG. It is a front view which shows the other camera and illumination for image processing with the electronic component characteristic test | inspection classification device by this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Supply table part 2 Camera and illumination part 3 Supply P & P part 4 Measurement table part 5 Measurement part 6 Classification | category part 7 Control part 101 Electronic component 102 Supply hopper 103 Supply table 104 Groove 105,306,313,403,511,613 Pulse motor 201, 801 Camera 202, 802 Illumination 301, 601 Suction nozzle 302 Rotating shaft 303 Case 304A, 304B, 612 Timing pulley 305, 611 Timing belt 307 Vertical hook 308, 603 Rotary joint 309, 604 Air tube 310, 408, 506 610 Linear guide 311 Receiving plate 312 Swing bar 401 Measurement table 402, 616, 617 Sub-base 404 Lower electrode 405 Insulating material 406 Positioning claw 1
407, 702 Claw holder 409, 504 Tension spring 410 Air cylinder 411 Positioning claw 2
412, 609, 704 Bracket 413, 703 Linear motion unit 501 Upper electrode 502 Detector 503 Holder 505 Spring hook plate 507 Stopper 508 Slide table 509 Ball screw 510 Coupling 512 Support plate 602 Rotary cylinder 605 Suction / discharge section 606 Suction / discharge hole 607 Suction Air 608 Discharged air 614 Storage box 615 Mesh plate 701 Discharge claw 705 Receiving box

Claims (9)

Multiple storage boxes;
Temporary receiving means consisting of a mesh plate and an intake / exhaust part and disposed at a temporary receiving position on each storage box;
A suction nozzle that picks up the component at the unloading position and conveys it to a position where the component faces one side of the mesh plate of the temporary receiving means;
A component classification device comprising: pressure control means for controlling pressures of the suction nozzle and the suction / discharge section and receiving the parts by a temporary receiving means and dropping them into a storage box. The component classification apparatus according to claim 1, wherein
The base of the suction nozzle and the temporary receiving means are supported by a common moving bracket, and are provided so as to be movable from the carry-out position to the temporary reception position, and the suction nozzle is located near the mesh plate at the temporary reception position and A parts classification device that can be moved to a position where it can be detached. The component classification apparatus according to claim 1, wherein
A component classification device characterized in that it can be detached from the temporary receiving position by selectively connecting a negative pressure and a positive pressure to the suction / discharge section. A device for inspecting and classifying the characteristics of electronic components,
A supply table portion that rotates by mounting electronic components supplied from a supply hopper on the supply table;
A camera unit for imaging and processing the electronic components scattered on the supply table;
A supply P & P unit that picks up the electronic components one by one from the unloading position of the electronic components on the supply table based on the image-processed information of the electronic components, and conveys the electronic components to a delivery position;
A measurement unit that receives an electronic component on the measurement table of the measurement table unit at the delivery position and measures its characteristics to generate a classification signal;
One or more storage boxes, a mesh plate and a suction / discharge section, a temporary receiving means arranged at a temporary reception position on each storage box, and an electronic component is picked up from the unloading position of the measurement section and selected by the classification signal The suction nozzle that transports and retracts the electronic component to the position where the electronic component faces the mesh plate of the temporary receiving means of the storage box, and the electronic component is received and stored by the temporary receiving means by controlling the pressure of the suction nozzle and the suction / discharge portion A component classification unit comprising pressure control means for dropping into a box;
Electronic component characteristic inspection and classification device. In the electronic component characteristic inspection and classification apparatus according to claim 4,
The supply table of the supply table section has an annular shallow groove, and is configured to apply rotational vibration in a direction opposite to the main rotation direction of the drive motor to eliminate overlapping of electronic components in the shallow groove. A characteristic electronic component characteristic inspection and classification device. In the electronic component characteristic inspection and classification apparatus according to claim 4,
The measurement table of the measurement table unit is provided with a positioning mechanism having a pair of positioning claws for positioning the electronic component at a fixed position of the measurement table on which the electronic component is conveyed by the supply P & P unit. A characteristic electronic component characteristic inspection and classification device. In the electronic component characteristic inspection and classification apparatus according to claim 4,
In the measurement unit, a detector for measuring the distance to the measurement table surface is integrated with the upper electrode holder in order to maintain a constant gap between the upper electrode and the surface of the electronic component to be measured on the measurement table. Electronic component characteristic inspection and classification device arranged and configured. In the electronic component characteristic inspection and classification apparatus according to claim 4,
To forcibly remove the inspected electronic components left on the measurement table,
An electronic device comprising a discharge claw using a discharge slope that is normally retracted upward to the measurement table carry-out position of the measurement unit and is lowered to the surface of the measurement table carry-out position during discharge. Parts characteristic inspection classification device. In the electronic component characteristic inspection and classification apparatus according to claim 4,
A camera and an illumination for image processing the electronic component are installed below the path for conveying the electronic component from the supply table to the measurement table by the supply P & P unit,
An electronic component characteristic inspection and classification apparatus configured to image the electronic component while moving along the path and inspect the appearance of the electronic component by the image processing.

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