JPS6340000Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an electronic component transfer chuck mechanism for transferring irregularly shaped electronic components that are not suitable for taping, such as electrolytic capacitors, to an insertion section that performs the operation of inserting electronic components into a printed circuit board. .

2. Description of the Related Art Automatic electronic component insertion machines that automatically insert electronic components onto printed circuit boards using taping such as resistors and capacitors have been known. However, irregularly shaped electronic components such as electrolytic capacitors, power transistors, and variable resistors, which have large diameter electronic components, are not suitable for taping, or cannot be taped, so conventional electronic component automatic insertion machines cannot insert them.

Therefore, the applicant of the present invention has recently begun to develop automatic electronic component insertion machines for oddly shaped electronic components. In this case, the problem is how to hold and transfer the odd-shaped electronic component to the insertion section that inserts the odd-shaped electronic component into the printed circuit board.

In view of the above-mentioned points, the present invention aims to provide a chuck mechanism for transferring electronic components, which is capable of holding irregularly shaped electronic components, particularly electrolytic capacitors, etc., and supplying them one by one to an insertion section.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the electronic component transfer chuck mechanism according to the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, the sequencer 1 is
A plurality of types of irregularly shaped electronic parts such as electrolytic capacitors which are not suitable for taping are stored, and a specific type is selected and supplied from among them, and the chuck mechanism 2 for transferring electronic parts is selected by the sequencer 1. The electronic components are taken out and transferred to the insertion section 3 where the electronic components are inserted into the printed circuit board.

In the sequencer 1, as shown in FIG. 1, an intermittent rotation shaft 11 passes through the center of a cylindrical exterior case 10, and an intermittent rotation holder 12 having a regular polygonal cross section is fixed around the intermittent rotation shaft 11. ing.
A component magazine holder 13 is fixed to each surface of the intermittent rotation holding body 12, and the component magazine holder 13 allows a component magazine 14 to be opened as shown in FIG.
are held vertically and equiangularly spaced. here,
The component magazine 14 has a rectangular tube shape elongated in the vertical direction and is made of plastic or the like, and holds electronic components 20 such as electrolytic capacitors with the main body 20A inside and the leads 2
Fixed posture with 0B facing outward (sideways posture)
A large number of them are stacked and stored. Note that the component magazine provided in each holder 13 normally stores different types of electronic components for each holder. A bottom plate 21 is integrally connected to the lower end of the cylindrical exterior case 10 of the sequencer 1, and these are fixed to the frame side of the main body of the apparatus. On the bottom plate 21, a pocket 24 is fixed to the lower part of the intermittent rotation holder 12 so as to be located below the component magazine 14. Therefore, with the intermittent rotational movement of the intermittent rotation holding body 12, both the component magazine 14 and the pocket 24 communicating with this lower opening rotate by a certain angle (for example, 45 degrees). An opening 25 is also formed in the bottom plate 21 corresponding to the lower opening of the pocket 24 located at point A, which is the component removal position, and at this position, the electronic component 20 at the bottom of the pocket 24 is inserted into the electronic component transfer chuck. Mechanism 2
The first chuck 30 is adapted to be taken out. Note that the lower part of the pocket 24 is also open, but as shown in FIG. Electronic parts 1
The electronic component 20 is prevented from falling under normal conditions (when the chuck 30 is not located) by leaving space in the pocket 24 for the electronic component 20.

The electronic component transfer chuck mechanism 2
A first chuck 30 for holding and taking out the main body 20A of the electronic component 20 from the sequencer 1, and a lead 20B of the electronic component 20 taken out by the first chuck 30.
A second chuck 4 that clamps and transfers the
0.

As shown in FIG. 4, the first chuck 30 has a pair of clamping levers 31A and 31B pivotally connected to a chuck mounting block 33 by pins 32, and an air cylinder 34 built into the chuck mounting block 33.
The clamping lever 31A is attached to the piston rod 35 of the
The lower ends of 31B are connected via links 36A and 36B. The chuck mounting block 3
3 also has a pair of ball bushes 37, which are supported by a ball bush shaft 38 provided perpendicularly to the bottom plate 21 of the sequencer 1 so as to be vertically slidable. Further, the chuck mounting block 33 is driven up and down by an air cylinder 39 attached to the bottom plate 21.
It is carried out by. In addition, at the lower end of the pocket 24 on the sequencer side, there are clamping levers 31A, 31.
A notch 24A is formed so that B can enter therein. Further, the tips of the clamping levers 31A and 31B form arcuate surfaces 31C and 31D so as to circumscribe the main body 20A of the electronic component 20 to be clamped.

The second chuck 40, as shown in FIG.
A pair of clamping levers 40A, 40B are pivotally connected to a chuck mounting block 42 by pins 41, and the clamping levers 40A, 40B are attached to a piston rod 44 of an air cylinder 43 assembled in the chuck mounting block 42.
The rear ends of 0B are connected via links 45A and 45B. The chuck mounting block 42
is fixed to a rotary drive shaft 46, and this rotary drive shaft 4
6 is provided on the slider 47 so as to be rotated by 90 degrees. On the other hand, a pair of support shafts 49 are fixed in parallel on a support stand 48 fixed to the sequencer 1 and the device main body frame side, and the slider 47 is supported by the support shafts 49 so as to be slidable in the horizontal direction as shown by arrow B. be done. In addition, stopper bolts 50A, 50B are provided to restrict the range of movement of the slider 47, and these stopper bolts 50A, 50
B is provided with a cushioning effect by a spring 51. Note that the clamping lever 40A has a trapezoidal convex portion 40C corresponding to the spacing between the leads 20B of the electronic component 20.
However, the trapezoidal convex portion 40C of the clamping lever 40B
A trapezoidal recess 40D into which the lead 20B is fitted is formed, and these convex parts 40C and recess 40D
The spacing between is regulated accurately.

Normally, the electronic components 20 in the component magazine 14 fall into the pocket 24 due to gravity and are caught by the component locking claws 27 shown in FIG. 4, where they are stopped. Now, when the intermittent rotation holding body 12 of the sequencer 1 rotates by a predetermined angle and the component magazine 14 containing the desired type of electronic components comes to point A, the first chuck 30 in the positional relationship shown in FIG. The levers 31A and 31B are operated in the opening direction as shown by arrow C in order to receive the electronic component 20. This operation is performed by the air cylinder 34.
The piston rod 35 is compressed by the elasticity of the internal spring 34A, and the clamping lever 31
At the same time as A and 31B open, the tip of the clamping lever 31B comes into contact with the pin 27A of the component locking claw 27 to move the component locking claw 27 outward as indicated by arrow D. As a result, the electronic component 20 at the bottom of the pocket 24 is released and the holding lever 31 is moved as shown by arrow E.
It falls between A and 31B. Thereafter, the air cylinder 34 extends the piston rod 35 by the force of compressed air. And the clamping levers 31A, 31B
The air cylinder 39 extends while holding the main body 20A of the electronic component 20 between the arcuate surfaces 31C and 31D at the tips, the chuck mounting block 33 descends as shown by arrow F, and the first chuck 30 connects to the second chuck 40. lowers to the waiting position. In the lowered position of the first chuck 30, the lead 2 of the electronic component 20
0B has a positional relationship with respect to the second chuck 40 exactly as shown in FIG. That is, the first chuck 3
The second chuck 40 receives the lead 20B of the electronic component 20 taken out from the sequencer 1 at 0 with the second chuck 40 facing upward and the holding levers 40A and 40B open. In this state, the air cylinder 60 for the push rod shown in FIG.
to ensure that the base of the chuck is firmly clamped by the second chuck 40. In this case, the spring 62 gives the push rod 61 a cushioning effect. After this operation, the air cylinder 43 of the second chuck 40 is operated to close the clamping levers 40A, 40B and clamp the lead 20B. Then, the rotary drive shaft 46 is rotated 90 degrees as shown by arrow G, and the second chuck 40 is turned sideways as shown by the imaginary line in FIG.
After the slider 47 is in the upright position, the slider 47 moves horizontally to the right as shown by arrow B. As a result, the electronic component 20 held by the second chuck 40 is transferred to the lower end position of the insertion section 3, its leads 20B are clamped by the insertion section 3, and the electronic component 20 is attached to the printed circuit board 70 by the operation of the insertion section 3. Lead 20B of electronic component 20
will be inserted.

According to the above embodiment, the following effects can be achieved.

(1) A first chuck 30 that holds the main body 20A to take out the electronic component 20 from the sequencer 1.
Since the lead 20 is used during the extraction operation,
B never bends.

(2) The second chuck 40 is a pair of clamping levers 40
Not only can the leads 20B of the electronic component 20 be clamped by A and 40B, but also the interval between the leads 20B can be accurately regulated by the trapezoidal convex portion 40C and trapezoidal concave portion 40D at the tip of the clamping lever.

As described above, according to the present invention, it is possible to obtain a chuck mechanism for transferring electronic components that can hold electronic components such as electrolytic capacitors and supply them one by one to the insertion section, and is suitable for handling irregularly shaped electronic components. Suitable for mounting on electronic component automatic insertion machines, etc.

[Brief explanation of the drawing]

FIG. 1 is a front sectional view showing an embodiment of the chuck mechanism for transferring electronic components according to the present invention, particularly showing the mechanism around the first chuck, and FIG. 2 is a front sectional view showing the mechanism around the second chuck in the embodiment. 3 is a plan sectional view of the parts magazine, FIG. 4 is a side view of the first chuck, and FIG. 5 is a side view of the second chuck. DESCRIPTION OF SYMBOLS 1...Sequencer, 2...Chuck mechanism for electronic component transfer, 3...Insertion section, 14...Parts magazine, 20...Electronic component, 20A...Main body, 20B
... Lead, 21 ... Bottom plate, 24 ... Pocket,
25...Opening, 30...First chuck, 31
A, 31B... Clamping lever, 31C, 31D...
Arc-shaped surface, 40... second chuck, 40A, 4
0B...Pinching lever, 40C...Trapezoidal convex portion, 4
0D...Trapezoidal recess.

Claims (1)

[Scope of Claim for Utility Model Registration] A pair of clamping levers 31A and 31B each having an arcuate surface circumscribing the main body of the electronic component at the tip and clamping the main body of the electronic component, and is capable of being raised and lowered in the vertical direction. A first chuck 30, one clamping lever 40A having a trapezoidal convex portion at its tip that regulates the interval between the leads of the electronic component, and the other clamping lever having a trapezoidal concave portion at its tip into which the trapezoidal convex portion fits. 40B, and a second chuck 40 that is horizontally movable and rotatable, and a component locking claw 27 provided in a pocket 24 containing stacked electronic components lying on its side. , the first chuck 30 moves outward from the pocket in the raised position, drops the electronic component in the pocket, clamps its main body, and descends, and the second chuck 40 moves outward from the pocket in the lowered position. Said first
A chuck mechanism for transferring an electronic component, characterized in that the chuck 30 grips the lead of the electronic component held and rotates to horizontally move the electronic component to a predetermined position in an upright state.