JPH0691349B2 - Electronic component reversing device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic component automatic inserting machine that inserts electronic components into a printed circuit board by using an electronic component having a lead wire and taped to form an electronic component string. The present invention relates to an electronic component reversing device that is used to reverse the insertion direction of an electronic component by 180 degrees.

2. Description of the Related Art Generally, when automatically inserting an electronic component having a lead wire, the electronic component 27 is mounted on the mount tape at regular intervals as shown in FIG.
An electronic component train 37, which is arranged on the tape 35 and taped with an adhesive tape 36, is used. In the conventional electronic component insertion machine, as shown in FIG.
With the lead wires 28 of 27 being held by the electronic component transfer chuck 7, the mount tape 35 and the lead wires 28 are a, b,
After cutting at the point c, the transfer chuck 7 rotates in the A direction,
Further, the guide pin 4 is transferred to the second transfer chuck 54.
The structure is such that the lead wire 28 held by the transfer chuck 7 is inserted into the insertion hole 51 of the circuit board 50 by sandwiching it between the guide pins 47 and 49 and the insertion pusher 55. The position of the lead wire 28 of the electronic component 27 when it comes to the guide pins 47 and 49 as it is will be determined.

By the way, the conventional electronic component inserting machine is generally in the X direction or the Y direction.
It is possible to change the insertion direction by 90 degrees, but it does not have the 180-degree insertion conversion function. Therefore, when inserting a polar electronic component such as an electrolytic capacitor or a diode, two types are prepared: an electronic component series in which the plus side precedes and an electronic component series in which the minus side precedes, and select according to the insertion direction. And is using it.

However, there is a limit to the number of electronic component stations that can be inserted in one electronic component insertion machine, and it is not necessary to prepare the same component in two types: a positive side preceding type and a negative side preceding type. This limits the number of electronic components that can be mounted. Also, the management of the electronic component series becomes complicated.

Therefore, by mounting an electronic component reversing device that can change the insertion direction of the electronic component by 180 degrees, and reversing the insertion direction of the electronic component having polarity, two types of positive side preceding type and negative side preceding type are mounted. Since it is not necessary to mount any one of them, it is possible to increase the number of electronic components that can be inserted by one electronic component inserting machine because only one of them has to be mounted.

Further, since only one of the plus side preceding type and the minus side preceding type can be unified and used as the electronic component series, management of the electronic components becomes easy.

Therefore, there has been a case where an electronic component reversing device as shown by a chain double-dashed line in FIG. 20 has been conventionally used. The details are shown in FIG.

Hereinafter, the conventional electronic component reversing device as described above will be described with reference to the drawings.

In FIG. 21, a chuck body 39 for reversing an electronic component is rotatably supported by a body 38 of an electronic component reversing device fixed to the body of an electronic component inserting machine, and a motor for rotating the chuck body 39. 40 is fixed. Motor 40
A spur gear 42 is fixed to the tip of the rotary shaft 41 of the
A spur gear 43 is pivotally attached to the body 38 so as to mesh with 42.

A gear 44 is provided on the outer circumference of the chuck body 39 so as to mesh with the spur gear 43. The spur gear 42 and the gear 44 have the same number of teeth, and the chuck body 3 is rotated along with the rotation of the rotary shaft 41 by 180 degrees.
The 9 also rotates 180 degrees. The chuck body 39 has a pair of chucks 45 and 46 that can be opened and closed.

Next, the operation of the electronic component reversing device having the above configuration will be described with reference to FIGS.
It will be described with reference to the drawings.

When the transfer chuck 7 holds the electronic component 27 with the electronic component reversing chucks 45 and 46 opened as shown in FIG. If it is not necessary to change the insertion direction, the electronic chuck 27 transfers the electronic component 27 to the next step without performing the reversing operation of the electronic component. When it is necessary to change the insertion direction of the electronic component 27, the chucks 45 and 46 for reversing the electronic component are closed to clamp the electronic component 27 as shown in FIG. Next, as shown in FIG. 24, the transfer chuck 7 is opened to open the lead wire 28 of the electronic component 27, and as shown in FIG. 25, the chucks 45 and 46 are rotated 180 degrees to change the inserting direction of the electronic component 27. To do. The drive at this time is to drive the motor 40 shown in FIG.
It is done by rotating it. After that, again, as shown in FIG.
Holds 28. Then, as shown in FIG. 27, chucks 45 and 46
Is opened, and the transfer chuck 7 makes the electronic component 27 ready for transfer to the next step.

Problems to be Solved by the Invention However, when electronic components 27 and 30 having different lead intervals are inserted as shown in FIGS. 28a and 28b, FIGS.
As shown in FIG. 1, the structure is such that the guide pins 47 and 48 are selected and used according to the number and spacing of the lead wires of the electronic component.

In the case of the electronic component 27 as shown in FIG. 29, the lead wire 28 is guided by the guide pin 47 and the guide pin 49, and in the case of the electronic component 52 as shown in FIG. 30, the guide pin 47, the guide pin 48 and the guide pin 49. As shown in FIG. 28, the electronic component 27 and the electronic component 30 having different lead wire intervals are guided by the 31st
As shown in the figure, the guide pin 48 and the guide pin 49 guide.

In this way, the guide pins 47 and 48 are selected by the electronic component and the electronic component is inserted into the insertion hole 51 of the circuit board 50, but the guide pin 49 is always used due to the mechanism of the selection portion of the guide pins 47 and 48. It has been done and cannot be selected. In such an electronic component inserting machine, when the electronic component 27 is rotated at the position of the transfer chuck 7 corresponding to the position around the central guide pin 48 in the electronic component reversing device 56 shown in FIG. 20,
In the case of the electronic component 30 as shown in FIG. 31, it becomes as shown in FIG. 32, and since the lead wire 31 cannot be guided by the guide pins 48, 49, the insertion of the electronic component 30 as shown in FIG. There was a problem that the direction could not be changed and inserted. Further, in FIG. 20, since the chuck body 39 cannot move in the A ₁ direction, it is necessary to dispose the chucks 45 and 46 at positions where they do not come into contact with each other due to the rotation of the transfer chuck 7, so that the electronic component 27 cannot be sandwiched by the chucks 45 and 46. However, there is a problem that the insertion direction cannot be changed when the size is small. Further, a spur gear 44, a spur gear 43, a gear 42, bearings for the respective gears, and a motor 42 for rotating the gear 42 are provided to rotate the chuck body 39, but the device itself has a complicated structure. There was a problem that was very large.

Further, since the rotation angle of the chuck body 39 is determined by the rotation amount of the motor 42, a control device for controlling the rotation amount of the motor 42 is required, which is complicated, large in size, and expensive. was there.

Further, since the driving and positioning means such as the chuck depends on the rotation and the amount of rotation of the motor, there is a problem that it is very difficult to stabilize the positioning accuracy.

In view of the above problems, the present invention is to provide an electronic component reversing device capable of correcting the position of the lead wire of an electronic component when changing the insertion direction of the electronic component having different lead wire intervals. Is.

Means for Solving the Problems In order to solve the above problems, an electronic component reversing device according to the present invention includes a main body having parallel guide portions, and an air cylinder incorporated in the main body to slide along the guide portions. The moving first slide body and the air cylinder incorporated in the first slide body are incorporated into the first slide body so as to slide in a direction orthogonal to the sliding direction of the first slide body. The second
And a chuck main body rotatably incorporated in the second slide body by a pinion portion screwed with a rack portion formed in the air cylinder incorporated in the second slide body, It is composed of a pair of chucks that are assembled so as to be swingable by an incorporated air cylinder so as to face one end of the chuck body.

With this configuration, when the insertion direction of the electronic component is changed, the center of rotation of the electronic component can be immediately corrected by the electronic component, and electronic components with different lead wire intervals can be mixed and inserted. It is possible.

Further, since the electronic component can be held at an optimum position according to the size and shape of the electronic component, highly reliable reversal can be performed. Further, since the driving and positioning means such as a chuck is driven by the air cylinder and the positioning is performed by the stopper, reliable and stable driving and positioning can be performed.

Embodiment An electronic component reversing device according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows the entire electronic component reversing device.
Details are shown in FIGS. 2 to 6.

In FIGS. 3 and 5, a chuck body 4 for reversing the insertion direction is rotatably supported on the second sliding body 3, and a pinion 8 is provided in a part of the chuck body 4. It engages with the rack 9 built in the sliding body 3 of 2. This rack 9 also serves as a piston, and by supplying air from the air supply hole 10 or 10 ',
The rack 9 is driven in the B direction, and the chuck body 4 is rotated by the pinion 8 engaged with the rack 9. The details of the chuck body 4 are shown in FIG. In FIG. 4, there is a protrusion 11 on the chuck body 4, and rotation positioning is performed by contacting a part of the second sliding body 3 shown in FIG. Further, in FIG. 4, the chuck body 4 has a pair of chucks 5 and 6 which can be opened and closed.

The chucks 5 and 6 are pivotally supported by shafts 12 and 13 serving as fulcrums, a compression spring 29 is provided between the chucks 5 and 6, and chuck rubbers 5a and 6a are fixed to the tips of the chucks 5 and 6, respectively. Has been done.

The chucks 5 and 6 are loosely attached by pins 15,
By driving the protruding portion 16 of the chuck 5 by a piston 17 incorporated in the chuck body 4, the chuck 5 and the chuck 6 are interlocked to open and close. The central portion of the chuck body 4 is hollow as shown in FIG.
The piston 17 shown in FIG. 4 is driven by supplying air from the air supply hole 18 shown in the figure. In FIG. 3, a shaft 19 is fixedly attached to the second sliding body 3 and, as shown in FIG. 2, the shaft 19 is supported by the supporting piece 20 of the first sliding body 2 in the C ₁ and C ₂ directions. It is possible to slide to.
As shown in FIG. 6, a compression spring 14 is provided between the second sliding body 3 and the chuck body 4 to urge the second sliding body 3 in the C ₁ direction.

A piston 21 is built in the first sliding body 2, and by supplying air from an air supply hole 22, the piston 21
21 is driven in the C ₂ direction, and the second sliding body 3
Sliding in the C ₂ direction in conjunction with 21. As shown in FIG. 2, a shaft 23 serving as a guide portion is fixed to the first sliding body 2 in parallel with the direction of the rotation axis of the chuck body 4. The shaft 23 is supported by a support piece 24 of the body 1. It is possible to slide in the A ₁ and A ₂ directions.

The main body 1 has a built-in piston 25, and the tip of the piston 25 is fixed to the first sliding body 2. By supplying air from the air supply hole 26A, the piston 25 is driven in the A ₁ direction, and in conjunction with this, the first sliding body 2 slides in the A ₁ direction. Further, by supplying air from the air supply hole 26B, the piston 25 is driven in the A ₂ direction, and in conjunction with this, the first sliding body 2 slides in the A ₂ direction. In FIG. 1, numeral 7 is a chuck for transferring an electronic component of the electronic component inserting machine, which can be opened and closed and can hold a lead wire 28 of the electronic component 27.

Next, the operation of the above embodiment will be described with reference to the drawings. 20th
In the electronic component insertion machine as shown in the figure,
The operation of changing the insertion direction of the electronic components 27 and 52 as shown in FIG. 30 will be described.

As shown in FIG. 7, if the chucks 5 and 6 for reversing the electronic parts are opened and the transfer chuck 7 holds the lead wires 28 of the electronic parts 27, it is not necessary to change the inserting direction of the electronic parts 27. The component reversing device does not operate, and the transfer chuck 7 transfers the electronic component 27 to the next step.

When the electronic component 27 needs to change the insertion direction, air is supplied from the air supply hole 18 of FIG. 3 to operate the chucks 5 and 6 as shown in FIG. 8, and the piston shown in FIG. 17 is operated in the D direction and the chucks 5 and 6 are closed.
To pinch.

Then, as shown in FIG. 9, the transfer chuck 7 is opened and the lead wire 28 of the electronic component 27 is opened.

Next, in order to change the insertion direction of the electronic component 27 as shown in FIGS. 10 and 13, air is supplied from any of the air supply holes 10 and 10 'of FIG. 3, and the rack 9 is moved in the B direction. Then, the chuck body 4 is rotated 180 degrees. As a result, the insertion direction of the electronic component 27 is changed as shown in FIGS.

After that, as shown in FIG.
By holding the lead wire 28 of and chucking the air supply to the air supply hole 18 of FIG. 3 as shown in FIG.
5 and 6 are opened by the compression spring 29.

As described above, the electronic component 27 is ready to be transferred to the next process by the transfer chuck 7.

When it is necessary to change the inserting direction of the electronic component 30 as shown in FIGS. 18a and 18b, air is supplied from the air supply hole 22 shown in FIGS. 2 and 6 and the piston 21 is operated. The second sliding body 3 is moved as shown in FIGS. 15A and 15B to correct the center of rotation of the chuck body 4, and the electronic component 30 is held by the chucks 5 and 6, as shown in FIG. 15B. Reverse operation is performed. As a result, the electronic component 30 is
It is possible to change the insertion direction of the electronic component 30 at the position first held by the transfer chuck 7 without moving the position of the lead wire 31 as shown in FIG. 14B. When the insertion direction of the electronic component 30 is changed, the electronic component 27
11 to 12, the electronic chuck 30 is held by the transfer chuck 7, the electronic component reversing chucks 5 and 6 are opened, and the electronic chuck 30 is moved by the transfer chuck 7 as in the case of FIG.
Is ready to be transferred to the next step.

After that, when the air supply to the air supply hole 22 of FIG. 6 is cut off, the second slide body 3 is urged in the C ₁ direction by the compression spring 14, so that the rotation center for reversing the electronic component 27 is reached. Return.

When it is necessary to change the insertion direction of the small electronic component 32 as shown in FIG. 16, by supplying air from the air supply hole 26B of FIG. ₂ and operating the piston 25 in the A ₂ direction. , The first sliding body 2 is slid in the A ₂ direction to change the insertion direction. As a result, the electronic components are
It is possible to change the insertion direction in a stable state by moving the position where 32 is held by chucks 5 and 6. After the insertion direction is changed, the first sliding body 2 is returned in the A ₁ direction.

As a mechanism for driving the first sliding body 2, the second sliding body 3, the chuck body 4, and the chucks 5 and 6, the piston 17 is operated by urging it with air. It is also possible to use an electromagnet or the like.

EFFECTS OF THE INVENTION As described above, according to the present invention, it is possible to mix the electronic components having different lead wire intervals and perform the conversion of the insertion direction, and the position for holding the electronic components can be changed according to the size and shape of the electronic components. It is also possible to move to the optimum position.

With these functions, it is possible to support conversion of the insertion direction of all electronic components.

As a result, it is no longer necessary to mount both positive-side preceding type and negative-side preceding type in the electronic component insertion machine, and it is possible to dramatically increase the types of electronic components that can be inserted with one electronic component insertion machine. Is.

Further, as the series of electronic parts, it is possible to unify and use only one of the positive side preceding type and the negative side preceding type, and electronic parts having different lead wire intervals can also be used.
Since it is possible to perform mixed loading with a single electronic component insertion machine, management of machines and electronic components is greatly simplified.
In addition, the structure of the device is simple, and the parts for controlling the rotation amount of the motor for reversing the direction of the electronic parts as in the conventional example are unnecessary, and the cost of the entire device is compared with the conventional example. And it is possible to manufacture in about 1/10.

Since it can be manufactured more compactly, the electronic component reversing device of the present invention can be attached later to an existing electronic component inserting machine, and the electronic component reversing device has a great practical effect.

[Brief description of drawings]

FIG. 1 is a perspective view showing an entire example of an electronic component reversing device according to an embodiment of the present invention, and FIGS. 2, 3, and 4 show respective parts of the electronic component reversing device shown in FIG. Partial cross-sectional perspective views, FIG. 5 and FIG. 6 are main-part sectional views showing the structure of the apparatus, FIG. 7, FIG. 8, FIG. 9, FIG. 10, FIG.
FIG. 12 is a perspective view for explaining the operation of the device, FIG. 13A,
B, FIG. 14A, B, FIG. 15A, B, FIG. 16, and FIG. 17 are cross-sectional views showing the holding parts of the electronic parts in the same device, and FIGS. 18A, 18B, and 19 are electronic parts. Fig. 20 is a perspective view showing the shape of Fig. 20, Fig. 20 is a front view showing an inserting process of an electronic component inserting machine, Fig. 21 is a front view showing a conventional electronic component reversing device, Fig. 22, Fig. 23, Fig. 24, Figure 25,
26 and 27 are perspective views showing the operation of the apparatus, FIG. 28a,
b is a perspective view showing the shape of the electronic component, FIG. 29, FIG. 30, FIG.
1 and 32 are sectional views showing the inserting operation of the electronic component inserting machine. 1 ... Main body, 2 ... First sliding body, 3 ... Second sliding body, 4 ... Chuck body, 5 ... Chuck, 6 ... Chuck, 7 ... Transfer chuck, 8 ... Pinion , 9 ……
Rack, 14 ... Compression spring, 19 ... Shaft, 20 ... Support piece, 23
…… Axis, 24 …… Supporting piece, 27 …… Electronic parts, 28 …… Lead wire.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shozo Kadota 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A-60-258994 (JP, A) JP-A-61-208510 (JP, A)

Claims (1)

[Claims] 1. A main body having parallel guide portions, a first sliding body which slides along the guide portion by an air cylinder incorporated in the main body, and an air incorporated in the first sliding body. A second sliding body incorporated into the first sliding body so that the cylinder slides in a direction orthogonal to the sliding direction of the first sliding body, and an air incorporated into the second sliding body. A chuck body that is rotatably incorporated into a second sliding body by a pinion portion that is screwed with a rack portion formed in the cylinder, and an air cylinder that is incorporated into the chuck body, is swingable and is opposed to one end of the chuck body. An electronic component reversing device consisting of a pair of chucks that have been built in.