JPH06201532A - Carrier tape performance testing machine - Google Patents

Abstract

PURPOSE:To accurately capture a parts suction position and at the same time observe parts-mounting state by providing a camera for observing suction of parts, a camera, etc., for observing cavity at a parts supply position. CONSTITUTION:A carrier tape inspection mechanism part consists of a parts suction state observation camera 33. a camera 34 for observing cavity. and a testing machine control box. The parts suction state observation camera 33 observes the behavior of a carrier tape when parts are supplied, that of electronic parts. suction state of a suction nozzle 12, deficiency, etc., in electronic parts of carrier tape. The camera 34 for observing cavity observes the state of feed of the carrier tape at a position for sucking the electronic parts from the carrier tape, namely at the cavity part, and measures dimensions of the accuracy for feeding the carrier tape, the accuracy, etc., of a parts supply position E. Data whose image is picked up by the cameras 33 and 34 are properly recorded on a video tape and are reproduced at the display part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tester for performing a performance test such as adsorption of electronic components mounted on a carrier tape used in an electronic component supply device, and more particularly to a testing machine mounted on a carrier tape. The present invention relates to a tester capable of observing burrs such as paper fibers generated from the mounted state of electronic components and the material of carrier tape.

[0002]

2. Description of the Related Art In recent years, electronic devices have been miniaturized, and electronic parts used therein have been reduced to several hundreds of microns. For this reason, higher precision is required for supplying components to the component mounting machine as compared with before.

For this component supply, usually, a tape cassette is used which sends out a carrier tape in which electronic components are stored and held at a constant interval to the lower portion of the suction nozzle.

Here, in order to suck the fine electronic components by the suction nozzle, the component supply position on the carrier tape must be positioned exactly below the suction nozzle.
That is, the length between the reference pin for mounting and positioning the parts cassette on the parts mounting machine and the sprocket wheel for driving the tape, which is the position for supplying the parts, must be exactly constant.

When measuring the precision of this parts cassette, conventionally, two reference pins are provided on a reference table, and holes formed at predetermined positions of the master gauge are inserted into the reference pins and provided on the reference table. The optical axis of the camera thus obtained is positioned and fixed so as to match the reference point formed on the master gauge.
Then, the master gauge was replaced with the parts cassette to be measured, and the deviation of the center of the claw of the sprocket wheel of the parts cassette was measured.

However, in order to measure the center deviation with this camera, the master gauge and the parts cassette must be replaced each time, and it is difficult to perform accurate measurement due to changes in mounting conditions, etc. There is a problem that the property is low.

In order to solve this problem, the camera is moved so that the image of a predetermined portion of the member to be inspected picked up by the camera is located at the center of the display means, and the amount of movement is measured to measure the size of the member to be inspected. There has been proposed an inspection device which measures the accuracy and thereby accurately measures the dimensional accuracy of the member to be inspected.

Further, as a mechanism for performing accurate positioning,
One of the positioning pins is used as a reference pin, the other pin is used as an eccentric dependent pin, and the eccentric state of the dependent pin is selected to rotate the base with the reference pin as the rotation center for positioning. Mechanism: a positioning mechanism that is provided with a tape guide portion that regulates the storage tape in the width direction so that the suction surface of the suction chuck of the component extraction means is aligned with the central portion of the exposed electronic component; A mechanism that selects and rotates the base around the reference pin and adjusts the suction surface to the center of the electronic component by the tape guide part; Furthermore, imaging on either the suction nozzle side or the electronic component side There has been proposed a nozzle inspection device or the like that is provided with a means and has a display means for displaying a captured image.

[0009]

However, in both the above-mentioned conventional technology and the proposed technology, a mechanism for accurately positioning the carrier tape housed in the parts cassette and its measuring means are disclosed. There is a problem in that the mechanism becomes complicated and high precision is required when capturing an electronic component with a camera to determine the positioning by measuring the amount of movement of the electronic component.

Therefore, even if the tester has a simple structure,
There is a problem to be solved in that it is possible to accurately grasp the position where the electronic component housed in the carrier tape is sucked and to observe the mounting state of the electronic component.

[0011]

According to the present invention for solving the above-mentioned problems, a carrier tape on which a large number of electronic parts are aligned and mounted, a feeding means for feeding the carrier tape one by one, and a part for supplying the electronic parts are provided. It is composed of a feed / suction mechanism section having suction means for sucking a component, and an XY stage mechanism section that moves in the X-axis and the Y-axis, and the sucked electronic component is arranged at a predetermined position of the XY stage mechanism section. In this carrier tape performance tester, the XY stage mechanism unit moves in the X-axis or Y-axis direction in response to the operation of the suction means so as to be placed.

Further, a carrier is provided with a component suction observation camera and a cavity observation camera at the component supply position so that the suction operation of the electronic component can be observed and the feeding accuracy of the carrier tape and the component supply position accuracy can be observed. An observation mechanism section is provided; the cavity observation camera is provided with an upper lamp for illuminating the component supply position, and a feed / suction mechanism section is provided with a lower lamp for illuminating the component supply position; the XY stage mechanism section is provided. It is a carrier tape performance tester equipped with an XY table.

[0013]

The XY table moves in the X-axis or Y-axis direction in response to the operation of the suction means so that the electronic components mounted on the carrier tape are sucked and aligned and placed on the XY table in an orderly manner. By doing so, it becomes possible to visually judge the suction error of the electronic component mounted on the carrier tape, the lack of the electronic component, and the like.

A carrier observing mechanism section equipped with a component suction observation camera and a cavity observation camera at the component supply position so that the suction operation of electronic components can be observed and the carrier tape feeding accuracy and component supply position accuracy can be observed. With the provision of, it is possible to observe the state of actual adsorption and also to observe only the carrier tape feeding means.

Since the camera for observing the cavity is provided with the upper lamp for illuminating the component supply position and the feed / suction mechanism is provided with the lower lamp for illuminating the component supply position,
It becomes possible to observe the state of the electronic components mounted on the carrier tape accurately, and also to observe as a silhouette, and to observe burrs such as paper fibers generated from the material of the carrier tape.

[0016]

Embodiments of the present invention will be described with reference to the drawings. As shown in FIGS. 1 to 3, the carrier tape performance tester 1 of the first embodiment according to the present invention includes an XY stage mechanism unit 2, a feed / suction mechanism unit 8, a parts cassette 29, and a carrier tape. It is composed of an inspection mechanism section 32.

The XY stage mechanism section 2 is composed of an X table unit 3 and a Y table unit 5, as shown in FIGS.

The X table unit 3 is a unit for moving the Y table unit 5 far away from the feed / suction mechanism section 8 side by the X-axis drive motor 4, and the feed / suction mechanism section 8 is provided.
It is a structure that operates in accordance with the adsorption mode.

The Y table unit 5 is arranged on the X table unit 3 and is composed of a Y axis drive motor 6 and an XY table 7 on which electronic components sucked by the feed / suction mechanism 8 are placed. The Y-axis drive motor 6 drives the X-axis in the direction parallel to the feed / suction mechanism 8.
The Y table 7 can be moved. This X table unit 3 and Y table unit 5
Means that the Y table unit 3 is moved in the X-axis direction in synchronization with the suction mode of the feed / suction mechanism section 8, and the XY table 7
This is a structure in which the sucked electronic components can be aligned and placed in an orderly manner by moving in the Y-axis direction.

The feed / suction mechanism 8 comprises a pick and place unit 9, a feed mechanism 15, and a parts cassette mounting base 23.

The pick and place unit 9 is composed of a drive motor 10, a cam box 11, and a suction nozzle 12.

The rotation shaft of the drive motor 10 is connected to the rotation shaft of the cam box 11, and the drive motor 10 drives the cam in the cam box 11 to operate.

The cam box 11 includes three cams A, B,
It is composed of C and has a structure of rotating on the same axis. The cam A has a structure for moving the suction nozzle 12 toward the XY table 7 of the XY stage mechanism unit 2.

The cam B moves upward to adsorb the electronic parts mounted on the carrier tape of the parts cassette 29,
The XY table 7 for moving down and picking up the adsorbed electronic components.
It has a structure that moves up and down to be placed on.

The cam C is on the opposite side of the drive motor 10 and is connected to the extension of the rotary shaft of the drive motor 10, and pushes down the feed lever of the chip mounter of the parts cassette to feed the carrier tape one by one. Has become.

The suction nozzle 12 is fitted and fixed to the tip of a pick-and-place lever 13 in the shape of a flat bar, and is connected to the connecting portion of the cam box 11 at a plurality of locations at the base of the pick-and-place lever 13 to form a cam. A, B
It has a structure for performing ascending, descending, and horizontal movement operations.

In this way, the cams A and B of the cam box 11 are
Since the suction nozzle 12 can perform the operations of raising, lowering, and horizontally moving, when the suction nozzle 12 approaches the electronic component of the carrier tape at the component supply position E from above the carrier tape and becomes a predetermined interval. Suction to adsorb electronic components.

Then, it rises again in the adsorbed state and horizontally moves in the direction of the XY table 7. Then, the electronic component can be placed on the XY table 7 by lowering to a predetermined position of the XY table 7 and releasing the suction operation when a predetermined interval is reached. At this time, since the XY table 7 moves in the X-axis direction or the Y-axis direction in association with the suction operation, the sucked electronic components can be placed in an orderly manner.

The feed mechanism 15 includes a parts cassette 29.
The chip mounter is operated to move one frame at a predetermined interval every predetermined time, and is composed of a feed lever drive link 16, a vertical drive link 17, and a feed lever drive cam follower 19.

The feed lever drive link 16 is rotatably fixed to one end of the cam box 11 at one end of a rod-shaped link, press-contacts with the cam C at the fixed side position, and the other end thereof. It is connected to a vertical drive link 17 which moves up and down.

The vertical drive link 17 is used for the cam box 11
Is a link that moves up and down by the rotational movement of the cam C that is connected to the end of the cam C. One end of the lower side is rotatably connected to the feed lever drive link 16 and is mounted on the chip mounter near the center. 1 carrier tape
The structure is provided with a feed lever 18 for advancing the pieces one by one.

Cam follower 19 for driving the feed lever
Are arranged in parallel with each other in a state of holding the vertical drive link 17, and the vertical drive link 1 is provided at the center thereof.
A long groove is provided in the longitudinal direction in which the locking portion of 7 is loosely fitted, and a lever 21 for rotating the take-up reel 20 for winding the top tape covering the front surface of the carrier tape is provided at a predetermined position above the groove. The structure is provided with a protruding portion 22 for pushing.

In the feed lever driving cam follower 19 having such a structure, the vertical driving link 17 has the cam C.
By the way, it is pushed up together through the groove of the feed lever driving cam follower 19 while being pushed up by the above. Then, the take-up reel 20 rotates in the take-up direction via the lever 21 connected to the protrusion 22. Since this rotation amount moves in association with the cam C, it is just proportional to the moving speed and distance of the carrier tape.

The parts cassette mounting base 23 is a base on which a parts cassette equipped with an evaluation reel around which a carrier tape carrying electronic parts is wound is adjusted to a proper position for feeding and sucking and fixed. A base 24 to which the parts cassette is attached, micrometers 25 and 26 for finely adjusting the attachment position of the parts cassette to the X-axis / Y-axis, and the base 24 is fixed to a predetermined position of the X-axis / Y-axis. The structure includes position lock screws 27 and 28.

In the parts cassette 29, an evaluation reel 30 in which a carrier tape is wound and accommodated, and a carrier tape from the evaluation reel 30 are set at a predetermined interval and time.
It is composed of a chip mounter 31 for sending out one by one.

The chip mounter 31 of the parts cassette 29 is the base 24 of the parts cassette mounting base 23.
It is a structure that is attached to, and is finely adjusted and fixed by the micrometers 25 and 26.

As shown in FIGS. 2 and 3, the carrier tape inspection mechanism section 32 includes a camera 33 for observing the component suction state.
And a cavity observation camera 34 and a tester control box 35.

The component suction state observing camera 33 is used for observing the behavior of the carrier tape, the behavior of the electronic component,
This is a camera for observing the suction state of the suction nozzle 12, the lack of electronic parts of the carrier tape, etc., and recording them on a video tape or the like.

The cavity observation camera 34 observes the feeding condition of the carrier tape at a position where the electronic component is sucked from the carrier tape, that is, a cavity portion, and observes the feeding accuracy of the carrier tape, the precision of the component feeding position E, and the like. It is a camera for making measurements. The data captured by the cavity observation camera 34 is appropriately recorded on a video tape or the like.

The tester control box 35 drives the carrier tape performance tester 1 and also controls the component suction state observation camera 33 or the cavity observation camera 3.
4 is a control box equipped with an operation group for measuring the performance of the carrier tape by driving 4 to record on a video tape or the like or to reproduce on a display unit (not shown). The structure is such that the stage mechanism unit 2 and the suction / feed mechanism unit 8 can be controlled.

In order to test the performance of the carrier tape by the carrier tape performance testing machine 1 having such a structure, first, the carrier tape is set on the evaluation reel 30 of the parts cassette 29 and the base of the parts cassette mounting base 23. Attach to 24 and clamp.

The tester control box 35
By turning on the test switch in the operation group, the so-called cycle operation described below can be started.

The drive motor 10 of the pick-and-place unit 9 constituting the suction / feed mechanism section 8 is driven to rotate, whereby the cam C in the cam box 11 is rotated.

The rotational movement of the cam C is converted into the vertical movement of the feed lever drive link 16, and the vertical drive link 17 moves up and down. This vertical drive link 17
By pushing down the feed lever of the chip mounter 31 of the parts cassette 29 through the feed lever 18 when the sheet mounts and descends, one frame of the carrier tape mounted on the chip mounter 31 is fed.

At the same time, the cam B in the cam box 11 that is interlocked with the drive motor 10 rotates, and the pick-and-place lever 13 starts to descend, whereby the suction nozzle 12 at the tip of the pick-and-place lever 13 is started. Falls toward the electronic parts of the carrier tape at the parts supply position E.

Although not shown, the vacuum of the suction nozzle 12 is turned on while descending, and the shutter of the component suction state observation camera 33 (not shown) is opened to start recording the component suction state on the video tape. To do.

In this state, the suction nozzle 12 further descends and reaches the upper surface of the electronic component to suck the electronic component.

After the suction nozzle 12 sucks the electronic component, the suction nozzle 12 is raised by the cam B. At the same time, cam C
As a result, the vertical drive link 17 is raised and the chip mounter 31
While the feed lever is moving upward, the feed lever driving cam follower 19 is pushed up to rotate the take-up reel 20 counterclockwise to wind up the top tape.

Next, the pick-up and place lever 13 is moved to the X position by the rotation of the cam A of the suction nozzle 12 which has moved up.
It moves in the Y stage mechanism section 2 direction, that is, in the XY table 7 direction.

The suction nozzle 12 which has moved to a predetermined position on the XY table 7 starts to descend due to the rotation of the cam B, and when the predetermined interval is established between the suction nozzle 12 and the XY table 7, the vacuum is turned off and the sucked electron is absorbed. The parts are placed on the surface of the XY table 7.

The XY table 7 is predetermined by the tester control box 35 so that the XY table 7 can be moved in the X-axis or Y-axis direction by a distance slightly larger than that of the electronic component every time the electronic component is placed.

By rotating the cam B again, the suction nozzle 12
Rises.

By the rotation of the cam A, the pick and place lever 13 moves in a direction away from the XY stage mechanism section 2, that is, the suction nozzle 12 also moves toward the component supply position E of the parts cassette 29.

By repeating the above steps, the electronic parts mounted on the carrier tape can be sent out one by one, sucked one after another from the parts supply position E, and can be arranged in an orderly manner on the XY table 7. You can do it.

Then, the suction state is observed in the above items 1, that is, the behavior of the carrier tape at the time of supplying the components, the behavior of the components, the suction error, the state of the lacking product, etc. are recorded on the video tape and later analyzed by slow reproduction or the like. , Can be used for analysis.

Further, when observing the feeding accuracy of the carrier tape, etc., the pick-and-place lever 13 which moves up, down, and horizontally by the cams A and B in the cam box 11 of the pick-and-place unit 9 is retracted, that is, The suction nozzle 12 at the tip of the pick and place lever 13 is retracted from the component supply position E so that the rotational movement of the cams A and B is not transmitted.

Then, the suction nozzle 12 is maintained in a retracted state, and the cavity observation camera 34 is installed at the position shown in FIG. This position is directly above the component supply position E. By repeating the above steps (1) to (3) in this state, by recording the so-called cavitation at the component supply position of the carrier tape on the video tape without the suction operation, it is possible to observe the dimensional accuracy such as carrier tape feed accuracy and component supply position accuracy It will be possible.

The second embodiment according to the present invention relates to the carrier inspection mechanism section 32, in which the suction nozzle 12 is kept in a retracted state and the cavity observation camera 34 is used.
Is positioned directly above the component supply position, and the component supply position E is irradiated with light from above or below.

That is, as shown in FIG. 4, the upper lamp 36 attached to the tip of the lens barrel of the cavity observation camera 34 and the chip mounter 31 attached to the stand 39 are attached to the component supply position E from below. The lower lamp 37 for irradiating the light is attached.

The cavity observing camera 34 is provided with an XY stage (not shown) equipped with a micrometer for fine adjustment in the X-axis / Y-axis directions on the base 41.
A video camera is attached to the tip of a support rod 40 that is attached at a right angle to the adjustment hole standing on the Y stage, and a video camera is attached to the upper portion of the cavity observation camera 34. Therefore, the cavity observation camera 3
The adjustment of No. 4 can be finely adjusted by the X-axis and Y-axis micrometer attached to the XY stage.

The parts cassette 29 having the carrier tape inspection mechanism 32 having such a structure is incorporated in the carrier tape performance tester 1 of the first embodiment described above.

If the upper lamp 36 is turned on and the carrier tape 38 can be fed, the state of the electronic components mounted on the carrier tape 38 can be observed more clearly.

With the lower lamp 37 turned on,
By sending the carrier tape 38, it is possible to observe the electronic components mounted on the carrier tape 38 and the mounting positions in a silhouette state.
For example, the contour of the electronic component can be clearly observed, and the paper fiber burr can be observed when the carrier tape is made of paper fiber. It is also possible to observe the feeding accuracy of the carrier tape on which no electronic component is mounted.

[0064]

As described above, in the carrier tape performance testing machine according to the present invention, the electronic parts mounted on the carrier tape are sucked by the sucking means and are arranged on the XY table in an orderly manner. As described above, by moving the XY table in the X-axis or Y-axis direction according to the operation of the suction means, the suction state of the electronic component can be visually observed to judge the performance and suction state of the carrier tape. It has an extremely excellent effect.

Further, it is equipped with a component suction observation camera and a cavity observation camera, and is equipped with a rear part of a carrier observation machine for observing the suction operation of electronic components and observing the carrier tape feeding accuracy and component supply position accuracy. As a result, there is an excellent effect that the performance of the carrier tape and the performance of the suction means can be judged by reproducing the recorded suction state.

Further, since the camera for observing the cavity is provided with the upper lamp for illuminating the component supply position and the feed / suction mechanism section is provided with the lower lamp for illuminating the component supply position, the electronic component is mounted. This has an extremely excellent effect that the silhouette can be grasped clearly and the relationship between burrs such as paper fibers generated from the carrier tape and electronic parts can be easily observed.

[Brief description of drawings]

FIG. 1 is a plan view of a first embodiment showing a main part of a testing machine according to the present invention.

FIG. 2 is a front view of the testing machine.

FIG. 3 is a cross-sectional view taken along the line DD of FIG.

FIG. 4 is a perspective view showing a main part of a testing machine according to a second embodiment of the present invention.

[Explanation of symbols]

 1 Carrier Tape Performance Tester 2 XY Stage Mechanism Section 3 X Table Unit 4 X Axis Motor 5 Y Table Unit 6 Y Axis Motor 7 XY Table 8 Adsorption / Feed Mechanism Section 9 Pick and Place Unit 10 Drive Motor 11 Cam Box 12 Adsorption Nozzle 13 Pick-and-place lever 14 Feed mechanism 15 Feed mechanism 16 Feed lever drive link 17 Vertical drive link 18 Feed lever 19 Feed lever drive cam follower 20 Take-up reel 21 Lever 22 Projection part 23 Parts cassette mounting base 24 Base 25, 26 Micrometer 27, 28 Position lock screw 29 Parts cassette 30 Evaluation reel 31 Chip mounter 32 Carrier tape inspection mechanism 33 Component adsorption state observation camera 34 Cavite Observation camera 35 tester control box 36 upper lamps 37 below the lamp 38 Stand 39 Stand 40 support rod 41 base

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuo Tanaka 3515 Kamiwada, Yamato-shi, Kanagawa Kamaya Electric Co., Ltd.

Claims (4)

[Claims] 1. A feed / suction mechanism unit comprising: a carrier tape having a large number of electronic components aligned and mounted thereon; a feed means for feeding the carrier tape one by one; and a suction means for sucking the electronic components from a component supply position. And the X axis and Y
And an XY stage mechanism section that moves along an axis, so that the sucked electronic component can be placed in a predetermined position of the XY stage mechanism section in an orderly manner so that the XY stage mechanism section corresponds to the operation of the suction means. A carrier tape performance tester that moves in the X-axis or Y-axis direction. 2. A carrier provided with a component suction observation camera and a cavity observation camera at the component supply position so that the suction operation of an electronic component can be observed and the carrier tape feed accuracy and component supply position accuracy can be observed. The carrier tape performance testing machine according to claim 1, further comprising an observation mechanism section. 3. The cavity observation camera is provided with an upper lamp for illuminating a component supply position, and the feed / suction mechanism section is provided with a lower lamp for illuminating a component supply position. Carrier tape performance tester. 4. The carrier tape performance testing machine according to claim 1, wherein the XY stage mechanism section is provided with an XY table.