JPH06526B2 - Electronic component supply device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention covers, for example, an electronic component such as a semiconductor (hereinafter referred to as a chip) formed by an integrated circuit loaded in a stick magazine as a cover tape. The present invention relates to an electronic component feeder in an automatic taping device for electronic components that is wound on a take-up reel while being filled in a carrier tape having the above-mentioned one by one, and more particularly to a chip orientation changing device of the electronic component feeder.

(Prior Art) An electronic component supply device in an automatic taping device for electronic components of this type that has already been proposed is configured as shown in FIGS. 6 and 7 (Japanese Patent Application No. 62-277).
519).

That is, in FIGS. 6 and 7, on the back of the machine frame 1 having the guide rail 1a of the carrier tape T, the slide 2 having the chip guide groove 2a and the guide rail 2b is orthogonal to the guide rail 1a. Moreover, the slide 2 is provided with an inclination of about 45 degrees, and a stopper 3 is attached to the lower end of the slide 2. A swinging lever 4 is biased by a spring (not shown) to the right of the slide 2 near the stop 3, and is pivotally mounted on a support shaft 5 so as to swing freely. And the fork portion 4 at one end of the swinging lever 4.
A push rod 6 is engaged with a by a pin 7. Further, the upper end portion of the push rod 6 is pushed down by a push rod 8b of a suction head 8 which sucks a chip W operated by a cam mechanism or a robot, for example. The suction nozzle 8a of the suction head 8 sucks an electronic component (hereinafter, referred to as a chip) W and rotates about 90 ° to change the direction of the chip. Furthermore, a protruding rod 9 is engaged with a pin 10 on the other fork portion 4b of the swinging rod 4. Further, an ear piece 2c is attached to the slide 2 located above the projecting rod 9, and the ear piece 2c has a stepping arm rod 1 having a stepping portion 11a.
A pin shaft 12 is axially urged by a spring (not shown) to the guide groove 2a side by an elastic force of a spring (not shown), and the stepping arm rod 11 is pushed up at the upper part of the thrust rod 9 and The tip W sliding down the guide groove 2a is temporarily received by a part of the protruding rod 9. Further, a through hole 11b is bored in the middle of the stepping arm rod 11, and a stopper 13 attached to the ear piece 2c is rocked in the through hole 11b. The engagement is performed so as to regulate the moving range. Furthermore, a vacuum tube 14 is installed in the slide 2 near the stop 3, and the vacuum tube 14 is positionally regulated so that the tip W slipped down on the stop 3 is not unintentionally moved. It is designed to be vacuum-adsorbed.

Therefore, in the above-described electronic component supply device, the suction head 8 uses a cam mechanism (not shown) or a robot to load the plurality of chips W loaded in the guide groove 2a and the guide rail 2b of the slide 2 into the carrier of the machine casing 1. When the tape T is sucked and loaded one by one, when the push rod 8b of the suction head 8 pushes down the push rod 6,
The push rod 6 rotates the swing rod 4 to the left around the support shaft 5, so that the swing rod 4 pushes up the thrust rod 9 at the other end of the swing rod 4. Then, the thrust rod 9 is the stepping arm rod 1
1 is rotated clockwise around the pin shaft 12 until it is engaged with the stopper 13, and is stopped. Therefore, the stepping portion 1 of the stepping arm rod 11 is stopped.
The tip W held by 1a slides down and is temporarily locked to a part of the projecting rod 9, and at the same time, the suction nozzle 8a of the suction head 8 sucks the preceding tip W, and thereafter The suction head 8 rotates the tip W by about 90 ° to change the direction of the tip W, and the suction nozzle 8a
Loads the preceding chip W onto the carrier tape T of the machine casing 1.

On the other hand, when the suction nozzle 8a of the suction head 8 loads the preceding chip W onto the carrier tape T of the machine casing 1, the suction head 8 moves as shown by the chain line in FIG. Since 6 returns to the original position, since the above-mentioned thrust rod 9 descends via the swinging rod connected to this push rod 6, the trailing tip W that has been locked to this thrust rod 9 While sliding down to the stopper 3 side and stopping,
The stepping arm rod 11 moves back around the pin shaft 12, and the stepping portion 11a steps on and grips the next tip W.

In this way, in the above-described electronic component supply device, the suction head 8 sucks the plurality of chips W loaded on the slide 2 one by one by the cam mechanism or robot (not shown), and then the suction head 8 is sucked. Converts the direction of each chip W to adjust the chip posture, and
It is designed to be loaded on the carrier tape T of.

(Problems to be Solved by the Invention) However, in the above-described electronic component supply device, as shown in FIGS. 6 and 7, the suction head 8 is moved by a cam mechanism (not shown) or a robot. After sucking the chips W one by one, the suction head 8 itself is rotated by 90 ° around the suction head 8 by a pulse motor (not shown), and the direction of the chips W is rotated by 90 °. Since the attitude of the chip W is adjusted so that the chip W can be loaded in the recess T ₁ of the carrier tape T, the chip W is mounted in the recess T ₁ of the carrier tape T of the machine frame 1.
When the suction head 8 is rotated by 90 ° by the pulse motor, the chip W held in the vacuum suction state is displaced due to inertial force or vibration generated when the suction head 8 is rotated, which is caused. As a result, the chip W may not be accurately loaded into the recess T ₁ of the carrier tape T due to the positional deviation.

In particular, the relatively small chip W is lightweight and
Since it is small, the suction force of the suction head 8 also weakens, and on the other hand, the inertial force and vibration generated when the suction head 8 rotates due to the high-speed loading causes a large displacement to cause the chip W.
May not be accurately loaded in the recess T ₁ of the carrier tape T.

The present invention has been made in view of the above-mentioned circumstances, and the tip is configured to rotate a hollow shaft integral with a cylindrical cam having a tip receiving portion provided at the bottom of a slide by a predetermined angle. By this operation, the direction of the chip is changed and arranged in advance, and the suction head is moved only around the suction transfer of the chip by 90 ° around the suction head.
It is an object of the present invention to provide an electronic component supply device capable of preventing positional displacement due to inertial force and vibration generated when it is pivoted, and allowing chips to be accurately loaded in the recesses of the carrier tape.

[Structure of Invention]

(Means and Actions for Solving the Problem) In the present invention, a slide having a chip guide groove is obliquely installed in a machine frame provided with a guide rail of a carrier tape so as to be orthogonal to the guide rail. In a device for supplying electronic components that transfers chips one by one to the carrier tape with a suction head, a hollow shaft is rotatably mounted on the lower part of the slide table so as to be rotatable orthogonally to the chip guide groove. A tip receiving part having a stopper at the upper part is formed so as to communicate with the tip guide groove, and a cylindrical cam is coaxially and integrally mounted on the hollow shaft so as to rotate a fixed angle. A mating slide member is provided slidably with respect to the machine frame, a main shaft is mounted on the machine frame, a cam member is pivotally mounted on the main shaft, and the operating arm rod is attached to the cam member on the machine frame. Contact with the above slide member By rotating the cam member that is connected to and integrated with the main shaft, the cam member slides the slide member upward through the operating arm rod, and the cylindrical cam that engages with the slide member is fixed. By turning by an angle (90 °), the tip receiving portion of the hollow shaft integrated with this cylindrical cam is turned by a certain angle,
The orientation of the tip supplied from the slide to the tip receiving portion is changed in advance to adjust the posture so that the tip can be directly adsorbed by the adsorption head and accurately loaded on the carrier tape. .

(Example) The present invention will be described below with reference to an illustrated example.

In addition, the present invention, the same components as the above-mentioned specific example,
Description will be given with the same reference numerals.

1 to 5, reference numeral 1 is a machine frame provided with a guide rail 1a of a carrier tape T (see FIG. 7), and a chip guide groove 2a and a cover are provided on the back of the machine frame 1. The slide 2 provided with the member 2c is the guide rail 1 described above.
The slide shaft 2 is provided orthogonal to a and inclined rearward at about 45 degrees, and a hollow shaft 20 which also serves as a ventilation hole is provided at a lower portion of the slide 2 with a bearing 21 as the tip guide groove 2a.
It is mounted so as to be rotatable orthogonally to. In addition, a tip receiving portion 22 having a stopper 22a is formed on the upper portion of the hollow shaft 20 so that the tip W can be placed on the hollow shaft 20 and can communicate with the tip guide groove 2a. On the tip of the tip receiving portion 22, for example, a suction head 8 operated by a cam mechanism or a robot.
Is provided so as to rotate toward the guide rail 1a side of the carrier tape T, and the suction head 8 is provided with
Suction nozzle 8a is to adsorb the chip W of the Uketamawakuchi portion 22, which is adapted to directly transfer the recess T ₁ of the above carrier tape T.

On the other hand, as shown in FIG. 3, a cylindrical cam 23 is coaxially fitted onto the lower outer periphery of the hollow shaft 20, and a grooved cam portion 23a is formed on the outer periphery of the cylindrical cam 23. ,
For example, it is formed so as to rotate by a fixed angle of 90 degrees. A pair of guide rods 24 are provided on the slide 2 beside the cylindrical cams 23 side by side with the cylindrical cams 23. The slide members 25 are prevented from slipping out of the guide rods 24. The coil spring 26 is elastically urged downward and slidably provided. Further, a roller 25a is attached to one side of the slide member 25 so as to engage with the groove cam portion 23a, and a taper actuating cam portion 25b is formed on the other side of the slide member 25. ing.

On the other hand, a main shaft 27 having a transmission gear 27a as a sole drive shaft is rotatably mounted on the machine frame 1 near the cylindrical cam 23. The main shaft 27 has a substantially fan-shaped cam. The member 28 and a disk-shaped valve actuating cam 29 are both axially mounted. A base of an operating arm rod 30 is swingably mounted on a supporting shaft 31 on the machine frame 1 beside the cam member 28, and a rolling member attached in the middle of the operating arm rod 30 is provided. The child 30a is in contact with the outer peripheral surface of the cam member 28, and the free end 30b of the operating arm rod 30 is connected to the slide member 25 by a pin 32.

On the other hand, on one side of the slide 2, an actuator 33 having a speed control valve 33a such as an air cylinder device is provided, and an output shaft 33b of the actuator 33 is a spindle supported by the slide 2. A free end of an arm rod 35 pivotally attached at 34 is connected by a pin 35a. or,
The arm rod 35 is biased counterclockwise around the support shaft 34 by the elasticity of the coil spring 36. Furthermore, the support shaft 3
As shown in FIGS. 1 and 2, a swing rod 37 is swingably attached to the shaft 4, and the swing rod 37 is attached to the swing rod 37.
A flat push-up rod 38 is loosely attached by a pin to one end of the. Furthermore, a flat push-down rod 39 is loosely attached to the other end of the swinging rod 37 with a pin, and the push-up rod 38 and the push-down rod 39 support the swinging rod 37 as a support shaft. Three
By swinging around 4, it is possible to move up and down in opposite directions. A first air valve 44 is connected to the speed control valve 33a through a reed tube 45, and an actuating body 44a of the first air valve 44 is brought into contact with the actuating cam portion 25b so as to be opened and closed. ing.

On the other hand, a mounting portion (bracket) 40 is fixedly attached to one side of the slide 2 where the push-up rod 38 and the push-down rod 39 are located, as shown in FIG.
At 0, the ear piece 40a is extended so as to be located directly above the tip guide groove 2a. Further, in the middle of the ear piece 40a, the tip holding cylinder device (knock cylinder device) 41 having a holding piece 41a is held upright so as to temporarily hold the tip W in the tip guide groove 2a. This tip holding cylinder device 41 is connected through a lead pipe 43 to a second air valve 42 having an operating piece 42a attached on the rotation passage of the valve operating cam 29. Furthermore, a sorting lever 46 is rotatably attached to the inside of the mounting member 40 by a pin shaft 47, and the sorting levers 46a, 46 have a free end as if they were crank-shaped.
b is additionally provided, and this sorting piece 46a is formed so that the tip W sliding down in the tip guide groove 2a can be temporarily locked, and the other sorting piece 46b is the upper side of the push-up piece 36. Is in contact with.

On the other hand, the locking lever 48 is provided outside the mounting member 40.
Is rotatably pivoted by a support shaft 49, and the locking portion 4 is formed by bending the free end of the locking lever 48 into an L shape.
8a extends downward from the sorting portion 46a, and the locking portion 48a separates the sorting portion 46a from the sorting portion 46a so as to temporarily lock the sliding tip W. Has been extended to. Further, an adjusting screw 50 is screwed in the middle of the locking lever 48, and a lower end portion 50a of the adjusting screw 50 has the pressing rod 39.
Is in contact with the rod immediately above via a rod 51.

The operation of the present invention will be described below.

In advance, a plurality of chips W are loaded in the chip guide grooves 2a of the slide 2 and are covered with a cover member 2c to prevent the chips W from falling off.

On the other hand, the guide tape 1a is provided with a carrier tape T wound from a supply reel (not shown) to a take-up reel.

Next, when the main shaft 27 is driven, as shown in FIGS. 1 and 4, the cam member 28 integrated with the main shaft 27 and the valve actuating cam 29 both start to rotate. Then, the cam member 28 pushes the trochanter 30a of the operating arm rod 30 upward, so that the operating arm rod 30 rotates right about the support shaft 31. At the same time, the free end 30b of the operating arm rod 30 starts to rise along the guide rods 24 against the elastic force of the coil spring 26 via the pin 32, so that the sliding member 25 operates. The cam portion 25b opens the first air valve 44. Then, the compressed air of the first air valve 44 operates the actuator 33 through the lead tube 45.

Although the roller 25a of the slide member 25 is engaged with the groove cam portion 23a of the cylindrical cam 23, the roller 25a only moves up along the straight line portion of the groove cam portion 23a and is rotated by the cylindrical cam. Do not give power.

On the other hand, when the actuator 33 operates based on the valve opening operation of the first air valve 44, the output shaft 33b of the actuator 33 causes the arm rod 35 to move around the arm shaft 35 around the support shaft 34 as shown in FIG. Since it rotates rightward against the resilience of 36, the swinging lever 37 pivotally attached to the support shaft 34.
Is rotated clockwise, the push-up rod 38 attached to one end of the swinging rod 37 is raised, and at the same time, the push-up rod 38 pushes up the sorting piece 46b of the sorting lever 46. Then, the other sorting piece 46a of this sorting lever 46 is set in the tip guide groove 2
Since the engagement of the tip W of "a" is released, the tip W starts to slide in the tip guide groove 2a by its own weight.

On the other hand, when the oscillating rod 37 turns right, the oscillating rod 3
The pressing rod 39 attached to the other end of the lever 7 descends, and at the same time, the locking lever 48 that is in contact with the pressing rod 39 rotates counterclockwise around the support shaft 49, so that the locking lever 48 is locked. Since the portion 48a descends onto the passage of the tip guide groove 2a, the tip W sliding down the tip guide groove 2a is temporarily locked by the locking portion 48a. Further, the preceding tip W that has been locked by the locking portion 48a of the locking lever 48.
Slides down in the tip guide groove 2a, contacts the stopper 22a, and stops at the tip receiving portion 22.

On the other hand, since the valve operating cam 29 integrated with the main shaft 27 is rotating together with the cam member 28, the valve operating cam 29 pushes the operating piece 42a of the second air valve 42 to open the second air valve 42. To do. Then, this second air valve 4
The compressed air of 2 operates the chip holding cylinder device 41 through the lead tube 43, so as shown in FIG.
Holds the trailing tip W in the tip guide groove 2a temporarily for a fixed time.

On the other hand, when the cam member 28 rotates and the trochanter 30a of the operating arm rod 30 is pushed upward, and the operating arm rod 30 further raises the slide member 25 along the guide rods 24, Since the roller 25a of the slide member 25 pushes the curved portion of the groove cam portion 23a, the groove cam portion 23a
Includes a hollow shaft 20 and a bearing 21 at a fixed angle of 90 degrees.
Since it turns around and stops, the tip W of the tip receiving portion 22 attached to the upper part of the hollow shaft 20 turns by 90 degrees to change the direction of the tip W (FIG. 5). reference).

Then, after the suction nozzle 8a of the suction head 8 linearly descends and vacuum-sucks the chip W of the chip receiving portion 22, as shown by the chain line in FIG. Transfer and load into T ₁ .

At this time, since the suction head 8 does not rotate around the suction nozzle 8a, like the suction nozzle 8a of the suction head 8 of this type that has been proposed, the suction head 8 is generated when the chip W is rotated. No inertial force or vibration is applied, and loading error due to displacement is eliminated.

In this manner, when the main shaft 27 rotates and the cam member 28 and the valve actuating cam 29 pivotally attached to the main shaft 27 return to their original positions, as shown in FIG. 44 and the second air valve 42 are both closed, and at the same time, the slide member 25 is returned by the stored elastic force of the coil spring 26, so that the roller 25a of the slide member 25 returns the groove cam 23a. The hollow shaft 20 integrated with the cylindrical cam 23 of the groove cam portion 23a is returned to its original position and stopped.

On the other hand, by closing the first air valve 44,
As shown in FIG. 1, the actuator 33 connected thereto is returned by the stored elastic force of the coil spring 36, so that the arm rod 3 connected to the actuator 33.
5 also returns counterclockwise around the support shaft 34. Then, the swinging rod 37 pivotally attached to the support shaft 34 rotates counterclockwise around the support shaft 34, so that the push-up rod 3 attached to the swinging rod 37 is rotated.
Since the second air valve 42 is closed at the same time as 8 moves down, the holding piece 41a of the tip holding cylinder device 41 floats and releases the holding of the tip W, so that the tip W is guided by the tip guide groove 2a. The slide lever 46 slides down along with and is temporarily locked by the sorting piece 46a of the sorting lever 46 and stands by (see FIG. 1).

On the other hand, since the push rod 39 attached to the swing rod 37 ascends, the upper portion of the push rod 39 moves the locking lever 48 around the support shaft 49 via the rod 51 and the adjusting screw 50. It is rotated clockwise, and the locking portion 48a of the locking lever 48 is lifted up and completely separated from the tip guide groove 2a and stopped.

As described above, according to the present invention, by rotating the cam member 28 integrated with the main shaft 27, the cam member 28 slides the slide member 25 upward through the operating arm rod 30, and the slide member 25 By rotating the engaging cylindrical cam 23 by a fixed angle (90 °), the tip receiving portion 22 of the hollow shaft 20 which is integral with the cylindrical cam 23 is rotated by a fixed angle, and the tip is previously moved. Accurately converting the orientation of the chip W supplied from the slide 2 to the receiving portion 22 to adjust the orientation, and adsorbing the chip W as it is by the adsorption head 8 as it is and accurately loading it on the carrier tape T. You can

The link mechanism for temporarily holding each chip W of the slide 2 in the present invention is not limited to this, and it is possible to change the design to a link mechanism as shown in FIG. 6, for example. Be free.

〔The invention's effect〕

As described above, according to the present invention, the chip guide groove 2a is formed in the machine frame 1 provided with the guide rail 1a of the carrier tape T.
In the device for supplying electronic parts, in which the slide 2 having the above is obliquely provided orthogonal to the guide rail 1a, and each chip W of the slide 2 is transferred to the carrier tape T by the suction head 8, the slide 2 A hollow shaft 20 is rotatably mounted on the lower part of the hollow shaft 20 so as to be orthogonal to the tip guide groove 2a. Then formed
A cylindrical cam 23 is coaxially mounted on the hollow shaft 20 so as to rotate by a fixed angle, and a slide member 25 that engages with the cylindrical cam 23 is provided slidably with respect to the machine frame 1. A main shaft 27 is mounted on the machine frame 1, a cam member 28 is pivotally mounted on the main shaft 27, and the operating arm rod 30 is brought into contact with the cam member 28 and the slide member 25 is attached to the machine frame 1.
Since it is connected to the suction head 8, not only can the displacement of the suction head 8 due to the rotational inertial force and the vibration caused in the suction transfer operation be prevented, but also the construction of the suction head itself can be simplified and the chip W can be accurately loaded into the concave portion of the carrier tape T, and moreover, since the drive source can be driven only by the main shaft 27, energy can be saved.
In addition, since it is driven by the only main shaft 27,
Since all the mechanisms are stopped, it has an excellent effect such that a loading error can be eliminated.

[Brief description of drawings]

FIG. 1 is a sectional view of an electronic component supply device of the present invention, and FIG.
The figures are plan views of the same as above, FIG. 3 is a tilted view of the same as above, FIGS. 4 and 5 are respective figures for explaining the operation of the present invention, and FIG. 6 is of an already proposed electronic component. Cross-sectional view of the feeding device,
FIG. 7 is a plan view of a carrier tape on which chips as electronic components are loaded. DESCRIPTION OF SYMBOLS 1 ... Machine frame, 2 ... Slide, 2a ... Guide groove, 8 ... Suction head, 20 ... Hollow shaft, 22 ... Tip receiving part, 23 ... Cylindrical cam, 25 ... Sliding member, 27 ... Main shaft, 28 ... Cam member.

Claims (2)

[Claims] 1. A carrier frame having a guide rail of a carrier tape, a slide having a chip guide groove is obliquely provided orthogonal to the guide rail, and each chip of the slide is picked up one by one by a suction head. In a device for supplying electronic components to be transferred to, a hollow shaft is rotatably mounted on the lower part of the slide table so as to be orthogonal to the chip guide groove.
A tip receiving portion having a stopper is formed on the upper part of the hollow shaft so as to communicate with the chip guide groove, and a cylindrical cam is pivotally mounted on the hollow shaft so as to rotate by a fixed angle. A slide member that engages with a cylindrical cam is provided slidably with respect to the machine frame, a main shaft is mounted on the machine frame, a cam member is pivotally mounted on the main shaft, and an operating arm rod is provided on the machine frame. An electronic component supply device, which is in contact with a cam member and is connected to the slide member. 2. A slide is provided with an actuator, and a first air valve, which is in contact with an actuating cam portion of an actuating body, is connected to this actuator through a lead pipe, and a push-up rod and a push-rod are rocked on an output shaft of the actuator. It is provided so as to be able to move up and down in directions opposite to each other via a slidable rod, a chip holding cylinder device is attached to a part of the slide, and a second air valve for contacting a valve actuating cam of the main shaft is attached to the tip holding cylinder device with a lead pipe. The tip holding cylinder of the tip holding cylinder device is provided so as to temporarily hold the tip of the guide groove, and the sorting lever having each sorting piece on a part of the slide is operated by the pushing rod. And a locking lever having a locking portion is pivotally mounted on the slide beside the sorting lever so as to be operated by the pushing rod. Supply apparatus for an electronic component in the range first claim of.