JPH0358979B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Application Field) The present invention is an automatic insertion device for inserting electronic components into a printed circuit board, which selects and cuts a desired electronic component series from a plurality of electronic component series. The present invention relates to an electronic component transfer device that holds separated electronic component continuous cut pieces on a pallet and transfers them to a chuck that holds the electronic components.

(Prior Art) Conventionally, in an automatic insertion device proposed by the present applicant, a desired electronic component series is selected from a plurality of electronic component series, and the electronic component continuous pieces that are cut and separated are stacked vertically. The mechanism was such that pieces were held by moving pieces and transferred to a chuck at the bottom. in this case,
As the number of electronic components used increases, the number of pieces in the vertical direction must be increased, resulting in an increase in the height of the device and the need for an installation location with a high ceiling. Additionally, when starting up the device, the work of connecting electronic components to the device must be done at a high place.
Some disliked the poor workability.

(Problems to be Solved by the Invention) In order to solve such problems, consideration has been given to making a pallet holding continuously cut pieces of electronic components run in a horizontal plane using an endless belt mechanism such as a chain. In this case, even if the number of types of electronic components increases, the horizontal dimension only increases, and the height of the device can be kept constant, so that it can be installed at a location at the normal ceiling height. However, in this case, it is necessary to feed the continuous cut pieces of electronic components onto the pallet in a position where the chuck can easily hold the electronic components. I had to twist it and pull it out. Therefore, there was a problem that the work of installing the electronic parts at the time of starting the apparatus was troublesome and the work efficiency was poor.

In view of the above points, the present invention provides a pallet on the endless belt mechanism, and when the continuous cut pieces of electronic components supplied from the supply section are held by the pallet and transferred to the chuck, the pallet is separated from the pallet main body. , a component holding part that is rotatable with respect to the pallet body and holds the continuous cut pieces of the electronic component, and the endless belt mechanism is made to run in a horizontal plane,
In the portion where the endless band mechanism travels in an arc shape, the height dimension can be reduced by rotating the component holder so that the electronic component continuous pieces maintain a constant posture with respect to the chuck. It is an object of the present invention to provide an electronic component transfer device that is easy to install and has good workability.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides the following features: (a) A plurality of pallets are provided on the endless belt mechanism, and the electronic component series is configured to have one electronic component with a lead wire. In an electronic component transfer device that supplies continuous cut pieces of electronic components from a supply section to the pallet, holds the continuous cut pieces of electronic components on the pallet, and transfers the pieces to a chuck, (b) the pallet is placed in a horizontal plane; a pallet body horizontally fixed to the endless belt mechanism that travels at
a component holder pivotally attached to the pallet body so as to be rotatable in a horizontal plane; a retaining claw biased by a spring so as to come into pressure contact with the component placement surface of the component holder; and a slide bar that is slidable and engages with and rotates the component holding portion, and the holding claw is inclined from the component receiving side of the component mounting surface toward the component removal side. (c) a plurality of the supply parts are arranged along the outer side of the linear traveling part of the pallet; (d) a rotating part that causes the endless belt mechanism to travel in an arc shape; A cam is fixed concentrically with the body by a cam support member, and a cam follower with a hook is disposed on the rotary body so as to be movable in the radial direction with respect to the center of the rotary body by the cam, (e) linear traveling of the pallet In the part, the component holding section is in a first state before rotation, and receives from the component receiving side the continuous cut pieces of electronic components supplied from the supply section with the lead wires in a state parallel to the pallet traveling direction. The electronic component is held by the component mounting surface and the holding claw; The component holder is rotated outward so as to maintain a constant posture with respect to the chuck, and in a second state in which the component holder is rotated 90 degrees with respect to the first state, the electronic component is continuously cut into pieces by the chuck. The continuous cut piece of the electronic component is taken out to the component take-out side of the component mounting surface by pinching the lead wire.

(Example) Hereinafter, an example of the electronic component transfer device according to the present invention will be described with reference to the drawings.

FIGS. 1 to 3 show the overall configuration of the embodiment, which is installed in an automatic insertion device. In these figures, the electronic component transfer device 1 has an endless belt mechanism of intermittent running operation in which a chain 3 is stretched between sprockets 2A to 2D, and pallets 4 are fixed at regular intervals on this chain. This endless belt mechanism runs in a horizontal plane. Further, each pallet 4 holds a series of electronic component pieces obtained by cutting a series of electronic components, which are formed by arranging electronic components with lead wires on a holding band, into pieces each having one electronic component. Supply sections 5 are arranged along the outside of the linear running section of the chain, that is, the straight running section of the pallet 4, at equal intervals with the pallet 4, and each supply section 5 is rotatably equipped with a reel around which a series of electronic components is wound. The electronic component series 7 pulled out from the housed package cage 6 is connected. In this case, the packages 6 are also arranged at the same spacing as the supply section 5, and the electronic component series 7 drawn out from the package 6 are drawn out to the supply section 5 as they are without twisting or the like. At this time, the length of the electronic component series 7 to be pulled out is the same for each package 6.

The automatic insertion device includes, in addition to the electronic component transfer device 1, a chuck 10 that holds the electronic component of the electronic component continuous cut piece transferred by the electronic component transfer device 1, a rotary disk 11 on which the chucks 10 are provided at equal intervals, and a chuck 10. Insertion guide 13 inserts the lead wire of the electronic component carried by the machine into the printed circuit board on the XY table 12
It is equipped with

Details of the pallet 4 in the electronic component transfer device 1 are shown in FIGS. 4 and 5. In these figures, the pallet 4 is fixed to the chain 3 at the pallet body 20, and the hinge portion 21 protrudes to the side of the pallet body 20 which is supported horizontally.
A component holder 22 is pivotally attached to the holder 22 by a pin 23 so as to be rotatable in a horizontal plane. The component holding section 22 is provided with a holding claw 24, and the holding claw 24 is moved by a spring 25 to the component mounting surface 22A of the component holding section 22.
It is biased so that it comes into pressure contact with the Here, the holding claw 24 is attached to the component holding portion 22 so as to be inclined from the component receiving side of the component mounting surface 22A toward the component taking out side. Further, a slide bar 26 having the shape shown in FIG. 6 is slidably passed through the pallet body 20, and a pin 28 protruding from the lower surface of the component holding portion 22 is engaged with a groove 27 at the tip of the slide bar 26. I'm starting to do that. An extension spring 30 is provided between the pin 29 at the rear end of the slide bar 26 and the pallet body 20.
As a result, the slide bar 26 is in a state of protruding forward, that is, the component holding section 22 is in a state where the slide bar 26 is in a state of protruding forward.
is kept parallel to. In this state, the operation of cutting the electronic component series 7 into one electronic component as shown by the dashed line A and supplying the electronic component series cut pieces 40 onto the component holding section 22 is performed as shown in FIGS. This is executed by the supply unit 5 shown in FIG. The state in which the electronic component continuous cut piece 40 is held by the component placement surface 22A of the component holding portion 22 and the holding claw 24 is also shown in FIGS. Since it is inclined from the side toward the component removal side, it is easy to insert the electronic component continuous cut piece in the direction of movement of the electronic component continuous cut piece in FIG. 4, and it is difficult to come out in the opposite direction. As shown in FIG. 4, the lead wires of the electronic component continuous pieces 40 held under pressure on the component mounting surface 22A are parallel to the traveling direction of the pallet 4.

Now, pallet 4 is the fourth pallet in normal driving.
In the state shown in the figure, when the chuck 10 travels in an arc along the sprocket 2C that is close to and opposite to the chuck 10, the component holding portion 22 of the pallet 4 rotates as shown in FIG. The cut piece 40 is transferred to the chuck 10 in a constant posture relative to the chuck 10. The mechanism for this is sprocket 2C.
They are provided radially (in the radial direction of the sprocket 2C), and their details are shown in FIGS. 7 to 9. In these figures, sprocket 2C
A cam 41 is fixedly supported by a cam support member 42 concentrically with. Furthermore, fixed blocks 43 are fixed radially (radially) at equal angular intervals on the sprocket 2C, and a cam follower 44 is provided so as to slidably pass through the fixed blocks 43. A hook 46 that can be engaged with a groove 60 at the rear end of the slide bar 26 is pivotally attached to the tip of the cam follower 44 by a pin 45. Also,
A compression spring 47 is provided between the tip of the cam follower 44 and the rear end of the hook 46, and the cam follower 44 is further provided with a stopper pin 48 for regulating the lowering position of the hook 46. A roller 49 is provided at the rear end of the cam follower 44 and contacts the cam 41. An extension spring 50 is provided between the cam follower 44 and the fixed block 43. This extension spring 50 is sufficiently stronger than the extension spring 30 on the pallet 4 side, and thereby urges the cam follower 44 in a direction in which it comes into pressure contact with the cam 41. An engaging member 52 that engages with the rear protrusion 51 of the hook 46 is fixed to the fixing block 43.

Next, the operation of the above embodiment will be explained. The pallet 4 executes an intermittent running operation due to the intermittent rotational movement of the sprockets 2A to 2D. When the pallet 4 is in a position facing the supply section 5, a series of electronic components 7 of a predetermined type is selected and cut by the supply section 5, and is delivered to the pallet 4 as a series of electronic component pieces 40.
is transferred to the component holding section 22 of. In this case, the order in which the electronic component series 7 are supplied is such that the electronic component series cut pieces 40 are lined up on the pallet 4 on the side to be inserted into the printed circuit board. The electronic component continuous cut pieces 40 are in a state parallel to the pallet body 20 (first state before rotation)
The component mounting surface 22A of the component holding section 22 is
Lead wires of electronic components are placed on top of the pallet in parallel to the pallet traveling direction, and held by holding claws 24. The pallet 4 holding the electronic component continuous cut pieces 40 is placed on the sprocket 2 where the chuck 10 is located.
It moves in the direction of C. In this normal movement,
By the action of the extension spring 30 of the pallet 4, the component holding portion 22 is kept parallel to the pallet body 20 (first state before rotation). When the pallet 4 reaches the sprocket 2C, at its initial position, the cam follower 44 is in the most advanced position by the cam 41, as shown in FIG. remains as before. Next, when the pallet 4 begins to run in an arc shape along the sprocket 2C, the cam follower 44 moves back slightly as shown in FIG.
groove 60 at the rear end of the slide bar 26
engage with. Thereafter, as the pallet 4 travels in an arc shape, the cam follower 44 retreats, which moves the slide bar 26 and rotates the component holder 22, chucking the electronic component continuous piece 40. Maintain the same posture when viewed from 10. Sprocket 2
The position where C is rotated 90 degrees, that is, chuck 10
When the pallet 4 comes in front of the cam follower 44, as shown in FIG.
The amount of movement of the component holder 22 also becomes the largest, and the amount of rotation of the component holder 22 also becomes the largest (second state rotated by 90 degrees). Therefore, the chuck 10 clamps the electronic component lead wire of the electronic component continuous cut piece 40, moves in the direction of arrow P in FIG. After that, a predetermined automatic insertion operation is performed.

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

(1) 40 continuous pieces of electronic parts for 10 chucks
It is possible to use the pallet 4 to transport electronic components in a constant posture that makes it easy to hold them, and there is no need to twist the electronic component array 7 when supplying the electronic component array 7 to the pallet 4. Therefore, it is easy to mount the electronic component series 7 when starting the device, and the work efficiency is good.

(2) Since the sprockets 2A to 2D and the endless band mechanism of the chain 3 are made to run in a horizontal plane, the height of the device can be kept within a certain dimension even if there are many types of electronic component series 7 to be selected, and the installation The ceiling of the place may be low.

(3) The packages 6 that rotatably house reels on which the electronic component strings 7 are wound can be arranged at the same spacing as the pallets 4 and the supply section 5, so that the electronic component strings 7 from each package 6 can be The length of the drawer can be set constant, and work when installing and replacing the package cage 6 can be facilitated.

(4) On the component mounting surface 22A of the component holding section 22 which is parallel to the pallet main body 20 (first state before rotation) in the part where the pallet 4 travels in a straight line, the component receiving surface on the component mounting surface is placed. The electronic component continuous cut pieces 40 are supplied from the side so that the lead wires are parallel to the pallet running direction, and on the pallet 4, the electronic component continuous cut pieces 40 are kept in the same posture (in a horizontal plane) over both the straight running part and the circular arc running part. When the pallet is transferred at 90 degrees with respect to the pallet body 20 (no rotation) (second state of 90 degree rotation)
The chuck 10 grips the lead wire of the electronic component continuous cut piece 40 from the component holding section 22 and takes it out to the component removal side of the component mounting surface 22A. When the angle is 90 degrees, the lead wire of the electronic component continuous cut piece 40 is perpendicular to the pallet body 20 in the horizontal plane (in the radial direction of the sprocket 2C), and is in the optimal state for being held and transferred by the chuck 10 (chuck 10). 10), there is no need for the chuck 10 to perform any special operations, and the chuck 10 can be operated smoothly.
Can be delivered to.

Note that the number of pallets, the number and arrangement of sprockets, etc. can be changed as appropriate.

(Effects of the Invention) As explained above, according to the electronic component transfer device of the present invention, a plurality of pallets are provided on the endless belt mechanism, and a series of electronic components is cut into one electronic component with a lead wire. In the case where continuous cut pieces of electronic components are supplied from the supply section to the pallet, and the continuous cut pieces of electronic parts are held by the pallet and transferred to the chuck, the endless band mechanism is run in a horizontal plane and the pallet is The pallet body is configured to include a horizontal pallet body and a component holder etc. that is rotatable in a horizontal plane with respect to the pallet body, and in the portion where the endless band mechanism runs in a straight line, the lead wire is parallel to the pallet running direction to The continuous cut pieces of the electronic component are supplied to the component holder in the first state before rotation, and the continuous cut pieces of the electronic component are fed to the component holder in the first state before rotation, and the continuous cut pieces of the electronic component are kept in a constant posture with respect to the chuck in the portion where the endless band mechanism travels in an arc shape. By rotating the holding part and in a second state where the part holding part is rotated 90 degrees with respect to the pallet body, the lead wire of the continuous cut piece of the electronic component is held by the chuck and taken out from the pallet. , the height of the device can be reduced, the electronic component series can be easily installed when starting the device, and furthermore, the supply of continuous electronic component pieces to the pallet and the removal of the continuous electronic component pieces by chuck can be carried out smoothly. It is possible to transfer continuously cut pieces of electronic components at high speed.

[Brief explanation of drawings]

FIG. 1 is a plan view showing an embodiment of an electronic component transfer device according to the present invention, FIG. 2 is a front view of the same, FIG. 3 is a side view of the same, and FIG. 4 is a plan view of a pallet used in the embodiment. Figure 5 is a plan view showing the movement of the pallet along the sprocket near the chuck, Figure 6 is a side view showing the slide bar of the pallet, and Figures 7 to 9 are views showing the movement of the pallet along the sprocket near the chuck. It is a side sectional view showing a mechanism. 1... Electronic component transfer device, 2A to 2D... Sprocket, 3... Chain, 4... Pallet,
5... Supply section, 6... Package, 7... Electronic component series, 10... Chack, 20... Pallet body, 22... Component holding section, 22A... Component placement surface, 26... Slide bar, 40... Electronic component continuous cut piece, 41... Cam, 44... Cam follower,
46... Futsuku.

Claims (1)

[Scope of Claims] 1. A plurality of pallets are provided on an endless belt mechanism, and a continuous cut piece of an electronic component obtained by cutting a series of electronic components so as to have one electronic component with a lead wire is supplied to the pallet from a supply section. In the electronic component transfer device for holding continuously cut pieces of electronic components on the pallet and transferring them to the chuck, the pallet 4 has a pallet main body 20 horizontally fixed to the endless band mechanism running in a horizontal plane.
, a component holder 22 pivotally attached to the pallet body 20 so as to be rotatable in a horizontal plane, and a retaining claw 24 biased by a spring so as to come into pressure contact with the component placement surface 22A of the component holder. , a slide bar 26 that is slidable with respect to the pallet main body 20 and engages with and rotates the component holding portion;
The holding claws are attached to the component holding section with an inclination from the component receiving side to the component taking out side of the component mounting surface, and the supply section 5 is provided in plurality along the outside of the linear traveling portion of the pallet. A cam 41 is fixed by a cam support member 42 concentrically with a rotating body that causes the endless band mechanism to travel in an arc shape, and a hook is attached to the cam so that the cam can move freely in the radial direction with respect to the center of the rotating body. A cam follower 44 is disposed on the rotary body, and in the linear traveling portion of the pallet, the component holding portion is in a first state before rotation, and the lead wire is in a state parallel to the pallet traveling direction, and the feeding portion is connected to the supply portion. The electronic component continuous cut pieces supplied from the component receiving side are received from the component receiving side and held by the component mounting surface and the holding claw, and in the portion where the endless band mechanism runs in an arc shape, the cam follower with the hook is connected to the component receiving side. Engages with the slide bar to rotate the component holder outward so that the continuous cut piece of the electronic component maintains a constant posture with respect to the chuck, and the component holder is rotated 90 degrees relative to the first state. An electronic component transfer device characterized in that, in the second rotated state, the chuck grips the lead wire of the continuous cut electronic component fragment and takes out the continuous cut electronic component fragment to the component take-out side of the component mounting surface.