JP2853177B2 - Electronic component mounting method - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic component mounting method for sequentially mounting a wire (eg, a jumper wire) on a printed circuit board.

2. Description of the Related Art Conventionally, this type of electronic component mounting method has a configuration shown in FIG.

That is, a chuck jaw 102 capable of holding a wire 100 supplied in a reel shape by a cylinder 101, and a chuck jaw 10
A feed unit 105 having a cylinder 103 for moving the wire 2 in the axial direction of the wire 100 and a nozzle 104 for controlling the position of the feed portion of the wire 100; and a position in a direction perpendicular to the axial direction of the sent wire. A pusher 108 having a V-shaped groove 106 for receiving the wire 100 and pushing the wire 100 into the printed circuit board 107 at the time of insertion, and a pusher 108 at the time of cutting and forming the wire 100
An openable / closable lever 109 for preventing the wire 100 from dropping out of the V-groove 106 and for forming the wire 100 into a predetermined shape;
00, and the wire 100
, An insertion unit 113 having a fixed blade 111 for cutting the fed wire 100 into a predetermined size, and a movable blade 112.

However, under such a configuration, even if an attempt is made to send out the wire rod 100 during insertion, the insertion guide 110 is impeded as shown in FIG. There is a problem that the sequence operation for sending out 100 must be taken and the shortening of the insertion tact is naturally limited.

The present invention has been made in view of the above drawbacks, and provides an electronic component mounting method capable of supplying the next wire during mounting.

Means for Solving the Problems In order to solve the above-mentioned drawbacks, an electronic component mounting method according to the present invention includes a feed unit that supplies a substantially linear wire to a supply position, and a feeding unit that supplies the substantially linear wire at an insertion position. A method of cutting, forming, and sequentially mounting a substantially linear wire material supplied in an electronic component mounting apparatus having an insertion unit that cuts, bends, and mounts the printed circuit board on a printed circuit board. A first step of cutting the wire into a predetermined position on the printed circuit board at an arbitrary length, moving the wire from the insertion position to the supply position, and supplying the wire to the supply device at an arbitrary length; This is a configuration including a second step of moving the supplied wire to the insertion position.

Operation The present invention can supply the next wire during the mounting by separating the wire supply position from the insertion position with the above-described configuration.

Example Regarding the electronic component mounting method of one embodiment of the present invention,
This will be described with reference to the drawings.

FIG. 1 shows an outline of an electronic component mounting method according to an embodiment of the present invention. A first step of moving the wire from the insertion position to the supply position and supplying the wire to the supply position at an arbitrary length; a second step of moving the supplied wire to the insertion position almost simultaneously with the completion of the mounting, FIG. 1 The outline thereof is shown in FIG. 1, and the operation is performed by a combined operation of the feed unit 1, the nozzle 2, and the insertion unit 3 described below.

First, the feed unit 1 will be described with reference to FIG. Reference numeral 4 denotes a wire supplied in the form of a reel, which passes through a strainer 5 to remove the peculiarity in the direction perpendicular to the axis. Reference numeral 6 denotes a pair of chuck claws A, which are driven by a cylinder A7 and can pinch the wire 4 and are fixed to the base 8. Reference numeral 9 denotes a pair of chuck claws B which are driven by a cylinder B10 and can clamp the wire 4, and are slidably mounted on the base 8 so as to be able to reciprocate in the axial direction of the wire 4 by driving a cylinder C11.

 Next, the nozzle 2 will be described.

The nozzle 2 is fixed to a shaft 12 rotatably mounted on the base 8, has a hole slightly larger than the diameter of the wire 4 and slightly longer than the supply amount of the wire 4, and extends in a direction perpendicular to the axis of the wire 4. The position is regulated. Further, the shaft 12 is swung only by a predetermined angle by a rotating cylinder 13 fixed to the base 8. Further, the insertion unit 3 will be described. 14 is a frame that can operate in the direction perpendicular to the axis of the wire 4
15 and the head cover 16 are piston rods that constitute a cylinder D18 whose stroke is larger than the distance between the printed circuit board 17 and the wire rod 4, and an air hole A1 formed in the frame 15.
9, driven by compressed air flowing in and out of air hole B20. Reference numeral 21 denotes a pusher rod that penetrates the inside of the piston rod 14 so as to be slidable in the same direction with respect to the piston rod 14, and is constantly pressed to the printed circuit board 17 side by a spring A22, and is pressed against the piston rod 14 by a stopper 23. The relative position is secured. Reference numeral 24 denotes a pusher attached to the printed board 17 side of the pusher rod 21. At the tip of the pusher rod, there is provided a V groove 26 capable of axially receiving a wire 4 having a width smaller than the pitch of the insertion hole 25 by the wire diameter of the wire 4. In the state where the piston rod 14 is farthest from the printed board 17, the distance between the printed board 17 and the tip is cylinder D 1.
The stroke is smaller than the stroke of 8, and the wire 4 is configured to have a positional relationship at which the wire 4 can move in the direction perpendicular to the axis.

Reference numeral 27 denotes an insertion guide fixed to the printed circuit board 17 of the piston rod 14, which has a groove capable of receiving and slidingly contacting both side surfaces of the pusher 24, and which is located at a position opposed to the V groove 26 of the pusher 24. A V-shaped groove 28 capable of receiving the wire 4 in the same direction as the movement of the rod 14 is formed. Further, when the piston rod 14 is closest to the printed board 17, the distal end 29 of the insertion guide 27 is configured to be in contact with the printed board 17. Reference numeral 30 denotes a lever which has the same width as the pusher 24, is swingably mounted on a fulcrum 31 fixed to the frame 15, and is urged in the direction of arrow A by a spring (not shown).

The pusher 24 is stopped from moving when the pusher 24 receives the wire 4 in the V-groove 26 while the lever 30 swings most in the direction of arrow A.

A slide cam 33 mounted on the frame 15 so as to be slidable in the same direction as the piston rod 14 and driven by a cylinder E32 fixed to the base 8;
The lever 30 swings in the direction of arrow B by a roller 34 rotatably mounted on the lever 30. With the lever 30 most swung in the direction of arrow B, the distal end portion 35 of the lever 30 releases the movement restriction of the pusher 24. Reference numeral 36 denotes a fixed blade 37 fixed to the frame 15 and located on the wire 4 supply side of the insertion guide 27 and the insertion guide 27.
The movable blade, which is slidably mounted in the same direction as the moving direction of the insertion guide 27, has a fixed blade 37 and a movable blade 36 at the same position as the position where the pusher 24 is restrained from moving by the lever 30.
Blades intersect. The movable blade 36 is moved in conjunction with the insertion guide 27 by a ball groove 38 formed in the insertion guide 27 and a ball 39 movably mounted in the movable blade 36 in the direction of the four axes of the wire. With a slight movement after the intersection, the projection 40 of the movable blade 36 comes into contact with the fixed blade 37 and the ball 39 guides the insertion
The movement is stopped because the fixed blade 37 is formed with the ball groove 41 which can be separated from the ball groove 38 of the 27. Further, after the same state, the projection 40 of the movable blade 36 is separated from the insertion guide 27. Slide cam
The cylinder E32 that drives 33 comes into contact with the push rod 21 at the moment when the slide cam 33 swings the lever 30 and releases the restraint of the pusher 24. The pusher 24 comes into contact with the printed circuit board 17 in a state where the cylinder E32 is moved most toward the printed circuit board 17 side.

The operation of the electronic component insertion device configured as described above will be described below. First, the origin state of each part of the apparatus will be described. The wire 4 supplied in a reel shape is a strainer 5,
It passes through the pair of chuck claws A6, the pair of chuck claws B9, and the nozzle 2 and is in an insertion standby state. The pair of chuck claws A6 are driven by the cylinder A7 to hold the wire 4 therebetween. The pair of chuck claws B9 release the pinching of the wire 4. Nozzle 2
Swings toward the insertion position (the direction of arrow C in FIG. 10).
The piston rod 14 is located farthest from the printed board 17 (FIGS. 3 and 4).

Next, the insertion operation will be described. The printed circuit board 17 is compressed by the compressed air that the piston rod 14 flows in from the air hole A19.
The push rod 21 starts to move to the
Is moved in the same direction by the urging, and the V-groove 26 formed in the pusher 24 receives the wire 4. When the wire 4 is received, the pusher 24 comes into contact with the tip portion 35 of the lever 30 and its movement is restricted, and at the same time, the blade of the movable blade 36 and the blade of the fixed blade 37 that move in conjunction with the insertion guide 27 intersect, so that the wire 4 is cut to a predetermined size (FIG. 5). Simultaneously with the cutting of the wire 4, the rotary cylinder 13 is driven, and the nozzle 2 swings toward the supply position (the direction of the arrow d in FIG. 10). Further movement of the piston rod 14 causes the tip of the insertion guide 27 to move.
The wire 4 is bent and formed with the lever 29 and the lever 30 (FIG. 6). The insertion guide 27 moves while receiving the bent wire 4 and the V-groove 28, and the tip 29 abuts on the printed board 17 and stops. Then, the cylinder E32 is operated, and the slide cam 33 swings the lever 30 in the direction of arrow B via the roller 34 to release the movement restriction of the pusher 24, and at the same time, the push rod 21 and the cylinder E32 contact. The pusher 24 moves to the printed circuit board 17 side while receiving the wire 4 formed by the action of the spring 22 and the cylinder E32 in the V-groove 26, and inserts the wire 4 into the printed board 17 by contacting the printed board 17. (FIGS. 7 and 8).
The inserted wire 4 is processed by a lower die (not shown) to prevent it from falling off. When the nozzle 2 swings toward the supply position, the pair of chuck claws B9 pinch the wire 4 by the cylinder B10, and the pair of chuck claws A6 release the pinch of the wire 4 by the cylinder A7. Then, the pair of chuck claws B9 are moved by the cylinder C, so that the wire 4 is sent out while the straightness is corrected by the strainer 5. Thereafter, the holding of the wire 4 by the pair of chuck claws B9 is released, and at the same time, the holding of the property 4 by the pair of chuck claws A6 is performed, and by operating the cylinder C11, the pair of chuck claws B9 becomes the pair of chuck claws A6. Move to the side and stop.

Finally, the home return operation will be described. The cylinder E32 operates in the direction away from the printed circuit board 17, and at the same time, the piston rod 14 also moves in the same direction by the compressed air flowing from the air hole B20. As a result, the insertion guide 27 and the pusher 24 move in the same direction to be in the home position. Nozzle 2
Swings toward the insertion position (in the direction of arrow C) by the rotating cylinder 13.

By repeating the above cycle, the wire 4 can be continuously inserted into the printed board 17 at a predetermined position.

Effect of the Invention As described above, the present invention mounts a wire to a predetermined position on a printed circuit board at an arbitrary length, and simultaneously moves the wire from an insertion position to a supply position, and places the wire at an arbitrary length on the supply position. By providing the first step of supplying and the second step of moving the supplied wire to the insertion position, the wire of the next mounting can be supplied during the mounting, and the insertion tuft can be shortened.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an electronic component mounting method according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of an electronic component inserting apparatus according to an embodiment of the present invention, and FIG. FIG. 4 is a sectional view taken along a line aa in FIG. 3,
5 is a cross-sectional view of a main part showing a state where the wire rod of FIG. 2 is cut, FIG. 6 is a cross-sectional view of a main part showing a state where the wire rod of FIG. 2 is bent, and FIG. 7 is FIG. FIG. 8 is a cross-sectional view taken along the line bb of FIG. 7, and FIG.
FIG. 10 is a cross-sectional view of a principal part taken along the line cc of FIG. 2, and FIG.
d is a cross-sectional view of a main part, FIG. 11 is a three-dimensional view of the main part without the wire rod of FIG. 6, FIG.
FIG. 13 is a three-dimensional view of a main part in a state where the wire rod of FIG. 12 is inserted. 1 ... feed unit, 2 ... nozzle, 3 ... insertion unit, 4 ... wire material, 6 ... a pair of chuck claws A, 9 ... a pair of chuck claws B, 24 ... pusher, 27 ... insertion guide , 30… lever, 36… movable blade, 37… fixed blade.

────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Taira Ishii 1006 Kadoma, Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (56) References JP-A-60-108238 (JP, A) JP-A-62- 171192 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) H05K 13/04 H01R 43/04

Claims (5)

(57) [Claims] 1. A feed unit for supplying a substantially linear wire to a supply position, and an insertion unit for cutting, bending, and mounting the substantially linear wire to a predetermined size at an insertion position and mounting the same on a printed circuit board. A method of cutting and shaping a substantially linear wire supplied in an electronic component mounting apparatus provided with an electronic component mounting apparatus, and sequentially mounting the wire on a printed board at an arbitrary length. An electronic component comprising: a first step of moving a wire from an insertion position to a supply position and supplying a wire to the supply position at an arbitrary length; and a second step of moving the supplied wire to the insertion position almost simultaneously with the completion of mounting. Implementation method. 2. The electronic component mounting method according to claim 1, wherein the wire is moved from the supply position to the insertion position by utilizing elastic deformation of the wire supplied from the feed unit. 3. The electronic component mounting method according to claim 2, wherein, when the wire is moved, a nozzle for regulating the position of the wire in a direction perpendicular to the axis is moved by a very small amount. 4. The electronic component mounting method according to claim 3, wherein the movement of the nozzle is an arc movement. 5. The electronic component mounting method according to claim 4, wherein the nozzle is longer than a supply amount of the wire.