JPS6156499A - Device for attaching electronic part - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a circuit notation drawn on an insulating substrate such as a printed circuit board or a ceramic substrate. This invention relates to a fixed electronic component mounting device.

[Technical background of the invention]

In general, an electronic component mounting device for assembling electronic components onto an insulating substrate is used to attach circuits (for example, resistive elements, capacitor elements, transistors, diodes, tantalum capacitors, etc.) on the insulating substrate (for example, external diameter dimensions,
/JXi, 4m7fn 87K) Each extremely small electronic component is attached and assembled using a suction nozzle.

On the other hand, the electronic components mentioned above are stored in the storage tape.
This storage tape is located in the ear canal (as shown in Figure 1).
A storage pocket hb is formed at a certain pitch on the support tape a having a perforation (perforation) al, an electronic component C made of, for example, a resistor element is deposited in this storage pocket hb, and this is further attached to the top tape d. It is stored so that the drawer does not come out.

Therefore, when each electronic component C is mounted on the upper d-pi insulating board, the sprocket mechanism intermittently feeds the ear hole a1 of the support tape a and slowly peels off the top tape d. An elevating suction nozzle is used to suction and take out the electronic component from the storage pocket (b), and the electronic component is attached to a predetermined position on the circuit pattern of the insulating substrate for assembly.

1. As shown in FIG. 2, this type of electronic component mounting machine that has already been proposed includes a servo motor drive mechanism 2, a power source 3, and a control combination terminal in a base l.
It has a built-in main operation knob on the top of the base/above. and a loader device 7 for inserting an insulating substrate 2 as a workpiece, and an unloader device r for delivering and receiving it and sending it out,
A pair of movable table belts running on the loader device 7 and unloader device r are conveyed by, for example, a pair of chain conveyors (not shown), and the insulating substrate 6 is placed on the movable table table. Place the
This is provided so as to be movable back and forth, right and left, and up and down together with the movable table.Furthermore, each casette storage device 10, on which the storage tape E is wrapped, is mounted on the upper part of the board l.
A plurality of tape reels l/ for winding the top tape d and a plurality of take-up reel saws for winding the support tape a are removably attached to the base. A guide frame/3 is provided in parallel with the loader device 7, unloader device, and rVc. Furthermore, this guide frame/3 is provided with an application head/4c for spraying adhesive.
a vacuum suction drive device ff equipped with a coating drive device 15 equipped with a vacuum suction drive device 15 and a suction nozzle 16 that vacuum sucks and holds an electronic component O;
1/7 is provided and configured to move in the left and right direction.

Therefore, the above-mentioned electronic component mounting machine has the above-mentioned main operation panel! The insulating substrate t on the movable table is automatically transferred directly below the coating head/Hiroshi by the loader device 7, where the adhesive is applied to a predetermined position on the insulating substrate t, and then After that, the suction nozzle 16 of the vacuum suction drive device 17 adjacent to the suction nozzle 16 adsorbs and holds the electronic component C deposited in the storage pocket b of the support tape a, and attaches it to the circuit of the insulating substrate B coated with adhesive. Attach it on the pattern,
Further, the insulating substrate 6 on which the electronic component a is mounted is sent to the next process together with the movable tableter from the unloader device Hc.

In particular, a vacuum suction drive device/equipped with the above-mentioned suction nozzle/l
7 is constructed as shown in FIGS. 3 to 1.

That is, in FIG. 3, an insulating substrate 6 as a workpiece to be transferred by a movable tableter is placed on the upper part of the base.
is placed horizontally, and the casette storage device 10 is installed on the top of the board near the insulating substrate B, as described above.
0 is detachably provided with a tape reel for winding the top tape d and a winding reel 12 for winding the support tape a. Further, on the base / in the vicinity of the tape reel /, there is a ratchet wheel /11 sprocket wheel /.
q, a ratchet mechanism consisting of a ratchet ratchet wheel a and the top tape d attached thereto are the tape reel L/ and the take-up reel/U.
) (It is wound up so that the electronic components C can be picked up and taken out seven at a time.

On the other hand, a sliding member J having a pair of bearings is vertically provided on a frame J of a vacuum suction drive device /7 equipped with a suction nozzle /6 above the ratchet mechanism n. A lifting rod is mounted on both bearings so that it can be moved up and down by a cam mechanism (not shown). or,
The gripping member 27 attached to the middle of this lifting mechanism has
A guide tube l11i13 is fitted, and this guide tube shaft 3
An operating rod is mounted on the shaft so that it can be moved up and down by a cam mechanism (not shown). Furthermore, a bracket 30 is provided on the guide tube shaft where the gripping member core is located, and a nozzle tube shaft J/ equipped with the suction nozzle /6 is attached to the bracket JO by a vacuum pump (not shown). The three flexible vibrators are connected to each other through the three flexible vibrators. Furthermore, at the lower part of this nozzle tube shaft 3/ and the guide tube shaft 2g, as shown in FIG. 3 and FIG. <Therefore, the nozzle tube shaft 3 is provided so as to be able to reciprocate and rotate, and the nozzle tube shaft 3 is located below the operating arm rod J3.
1, as shown in Figure 1, the centering mechanism ■
is provided to correct the position of the electronic component C to the correct posture.

That is, in FIG. 3 and the reference figures, the above-mentioned nozzle"
'fi@J/. 1゜yo, 7. . Yo, ah, -735
, 8 are fitted on the nozzle tube shaft 31 below the flange member 35, a lever support member 3 having a rectangular tube shape is fitted.
6 so that it does not fall off, and the coil spring 37
It is mounted on a shaft so that it can slide freely in the axial direction with the elastic force of . Further, on the two outer sides of this lever support member 36, a pair of centering levers 31 are pivoted to be opened and closed by respective pin shafts, with each pair of centering levers 31 biased by the elasticity of each coil spring 390. A roller φ/ is attached to the upper end of each centering lever 3g so as to come into contact with the lower surface of the flange member 3S. Further, at the free end of each of the centering levers Jg, horizontally formed claws 3a are arranged so as to surround the suction nozzle/l from all sides, and each of the claws 3a is The suction nozzle 16
The position of the electronic component C that has been sucked is corrected to the correct posture.

Therefore, the above-mentioned centering mechanism ■ is the third
``As shown in the figure, use the cam mechanism to raise the nozzle tube shaft 3/2 degrees 1''upwards''''-1'' H5 storage f-7
'l 1.・Suck up the electronic component C in the storage pocket b using the suction nozzle/6. At this time, the lever support member J6 slides upward against the elasticity of the coil spring 37, and thereby presses each of the rollers against the lower surface of the flange member 35, so that each of the centering levers 3g Each claw portion 3a opens its legs against the elasticity of each coil spring 3de, and the nozzle tube shaft 3/ is rotated by the crank mechanism 3tA and lowered by the cam mechanism. 1, the suction nozzle 16 moves from the electronic component suction position α to the electronic component placement position γ.
While the electronic component C of the suction nozzle/6 is being gripped from all sides at the electronic component correction position β by each claw portion 3♂a of each pair of centering levers 3g, the positional deviation and angle (orientation) during suction are checked. It is designed to rotate so as to correct the tilt and inclination, and also to reverse the directions of the + and - electrodes of the electronic component.

Therefore, the vacuum suction drive device equipped with the suction nozzle/6 lifts the elevating rod 26 upward by the cam mechanism, and rotates the actuating arm rod 33 around the circumference υ of the actuating rod knob by the crank mechanism 3'A. In conjunction with this, the nozzle tube axis 3/ is pulled to the position shown by the chain line in FIG. Open each centering lever 31r of the centering mechanism (3) in all directions.

Next, the suction nozzle 16 is lowered by the cam mechanism and crank mechanism as shown by the solid line in FIG. 3, and rotated as shown in FIG. The electronic component C is placed and fixed at a predetermined position on the insulating substrate B.

[Problems with background technology]

However, in the electronic component mounting apparatus described above, the extremely small electronic component C is suctioned by the suction nozzle/6 without using any holding member (support). When correcting the position using the centering mechanism ■, there is not only a risk that the electronic component C may fall from the suction nozzle/6, but also an extremely small and unstable electronic component C may be suctioned by the single suction nozzle 16. Therefore, if the nozzle diameter of the suction nozzle/6 is set to the minimum size, it is difficult to suction and hold a relatively large electronic component. Furthermore, when gripping an electronic component a equipped with three lead wires, when correcting its posture, if it is gripped by each claw part 3ta of the centering mechanism ■ according to the shape and direction K of the lead wires of the electronic component C,
There is a risk that the electronic component C, which is made of a tantalum capacitor as a heavy body, may fall due to the force of peeling it off from the suction nozzle/6. Furthermore, when the electronic component C made of a tantalum capacitor as a heavy body is picked up by the suction nozzle/6, there is a possibility that the electronic component C will not shift or be picked up. There are drawbacks such as the risk of falling and damaging the electronic component C.

[Purpose of the invention]

In order to solve the above-mentioned drawbacks, the present invention has provided that when correcting the posture of an electronic component by sucking it with a suction nozzle, the electronic component is supported on the upper end surface of a rotating tube shaft equipped with a visual sensor. It checks the presence or absence of parts, prevents them from falling, and corrects the posture of electronic parts with a single centering mechanism. At the same time, it can freely pick up electronic parts of one type or small quantity without replacing the suction nozzle. The object of the present invention is to provide an electronic component mounting device which is intended to improve assembly productivity by mounting the electronic component onto an insulating substrate.

[Summary of the invention]

In the present invention, a rotating tube shaft is mounted vertically on a holding member that is integrated with the machine frame, and a visual sensor is embedded in the upper part of this rotating tube shaft.
A suction nozzle is installed directly above the visual sensor and can be moved up and down.
A flange member that is integral with the lifting rod is fitted onto the rotating tube shaft, a lever support member is mounted on the rotating tube shaft via a coil spring, and a pair of each is mounted on two outer sides of the lever support member. A centering lever is pivotally mounted on each pin shaft so as to be able to open and close freely, and the lower end of each centering lever is provided in contact with the flange member which is a roller, and the free end of each centering lever is horizontally The claw portion formed in the suction nozzle is arranged to surround the suction nozzle from all sides. .

[Embodiments of the invention]

Hereinafter, the present invention will be described with reference to an illustrated embodiment.
In the figure f, sign! / is a flat machine frame in an electronic component mounting apparatus, and the holding member 4! is substantially integrally absorbed by the mounting member in the machine frame 4! - A rotary tube shaft rod is vertically mounted in the grain section IA2a. Also, a large gear Q is mounted in the middle of this rotary tube shaft stop, and the small gear gear that meshes with this large gear Q is connected to the output shaft of the servo motor attached to the above-mentioned holding part. It is centered on Ko 7a. Furthermore, an optical fiber-based electronic component detection sensor (D visual sensor Hiro♂) is embedded in the upper part of the rotating tube shaft stop. Furthermore, a ram suction nozzle is installed directly above the visual sensor 9, for example, so that it can be raised and lowered by a cam mechanism, and the upper end of the suction nozzle 9 is connected to a vacuum through a flexible tube. It is connected to a pump (not shown).

On the other hand, a flange member S, which is integrated with a lifting rod 30 that is raised and lowered by a cam mechanism (not shown), is loosely fitted into the rotating tube shaft stop, and the flange member J
A substantially rectangular cylindrical lever support member Sa is firmly mounted in the middle of the rotary tube shaft stop above / with a coil spring jj interposed therebetween. Also, on the two outer sides of the lever support member 2, each pair of centering levers is pivoted by the respective pin shafts s6 to be able to open and close by urging the leg-closing habit by the elasticity of each coil spring jj. Each roller 57 is attached to the lower end of each centering lever so as to come into contact with the upper surface of the flange member j.

Further, each claw portion 5 formed horizontally on the free end of each centering lever S is arranged so as to surround the electronic component C above the suction nozzle from all sides. The part Illa grips the electronic component C sucked by the suction nozzle 9 and corrects it to a correct posture.

Therefore, the suction nozzle A is now suctioning and picking up the electronic component C of the suction/sucking part b) of the storage tape I, and then the suction nozzle 9 is transferred directly above the visual sensor g and lowered. Then, the electronic component 0 is supported so as to be in contact with the top surface of the rotating tube shaft stop. As a result, the visual sensor Hiro♂ detects whether or not the electronic component C is attracted. On the other hand, the above-mentioned flange member j resists the elasticity of the coil spring sJ and moves away from the lifting rod.
Since each row 257 in contact with the flange member S/ rotates around the circumference υ of each pin shaft S6 against the elasticity of each coil spring Sj, each of the centering levers Each claw part 5°a of the 5 das is waiting in an open state.

When the electronic component C is detected by the visual sensor g and elastically comes into contact with the top surface of the rotary tube shaft cup, the flange member 5j moves up and down! descend by 0,
As a result, each claw part IQa of each pair of centering levers y+ grips the electronic component C, and then, as the servo motor 7 is driven, the small tooth part rotates and meshes with the retainer. Since the large gear shaft is rotated, the rotary tube shaft rod equipped with the large gear shaft rotates at a certain angle and then stops.

In this way, the electronic component C sucked by the suction nozzle≠9 is affected by its positional deviation, inclination, electrode change, etc.
etc. Thereafter, the flange member S/ is lifted up by the elevating lever go, so that each claw portion 3Qa of each centering lever 5da opens its legs and releases the gripping operation of the electronic component C. The electronic component C whose posture has been corrected is placed and fixed at a predetermined position on the insulating substrate by the suction nozzle.

〔Effect of the invention〕

As described above, according to the present invention, the holding member lA211c rotary tubes 11, 41 that are integral with the machine frame 447 are vertically installed, and the visual sensor Hiro♂ is buried in the soil of the rotary tube shaft cup. A suction nozzle ≠ 9 is provided directly above the visual sensor ♂ so that it can be raised and lowered, a flange member J that is integral with the lifting rod 50 is fitted to the rotary tube shaft cup, and a lever support member S is fitted to the rotary tube shaft cup. is pivoted via a coil spring jj, and each pair of centering levers on the two outer sides of the lever support member S= is pivoted to open and close with each pin shaft s6 by urging the outer legs to close. A roller tough is provided at the lower end of the outside of each centering lever in contact with the flange member S/, and a claw portion 5a formed horizontally at the free end of each centering lever 5a is provided at the lower end of the outside of each centering lever. Since it is arranged so as to surround the electronic component C from all four sides, it is not only necessary to prevent the electronic component C from falling off, but also allows the visual sensor to confirm whether or not the electronic component C is being attracted, and allows accurate correction of positional deviations and tilts. Furthermore, it has excellent effects such as being able to place an insulating substrate without missing anything.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a part of the storage tape used in the present invention, Fig. 2 is a perspective view of an electronic component mounting machine that has already been proposed, and Fig. 3 is a chain circle of Fig. 1. Enlarged sectional view of part A,
Figure 3 is a perspective view of the centering mechanism incorporated in the electronic component mounting machine, Figure 3 is a plan view for explaining the operation of the centering mechanism, and Figure 6 is the electronic component mounting according to the present invention. FIG. 2 is a cross-sectional view of the device. IAI...machine frame, lawn...holding member, pot...rotating tube shaft, curvature...servo motor, IA? river suction nozzle,
Yo0... Lifting rod, j)... Flange member, Octopus... Lever support member, Tada... Centering lever, jj... Coil blade, 36... Pin shaft, 57...
··roller. Figure 4 Figure 5 Figure 6

Claims (1)

[Claims] 1. A rotating tube shaft is mounted vertically on a holding member that is integrated with the machine frame, a visual sensor is embedded in the upper part of the rotating tube shaft, and a suction nozzle is raised and lowered directly above the visual sensor. A flange member integral with the lifting rod is fitted on the rotary tube shaft, a lever support member is mounted on the rotary tube shaft via a coil spring, and two outer sides of the lever support member are mounted on the rotary tube shaft. A pair of centering levers are pivotally connected to each pin axis so as to be able to open and close freely, and a roller is provided at the lower end of each centering lever in contact with the flange member, so that each centering lever can be freely opened and closed. An electronic component mounting device characterized in that a claw portion formed horizontally at an end portion is disposed so as to surround the suction nozzle from all sides. 2. The electronic component mounting apparatus according to claim 1, wherein the visual sensor is an electronic component detection sensor using an optical fiber. 3. The electronic component mounting apparatus according to claim 1, wherein the rotating tube shaft is driven by a servo motor.