JPS624381Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) The present invention relates to a soldering holder used for soldering printed wiring boards and the like.

(Prior Art) Conventionally, a soldering holder has a hollow frame-shaped holder body with gripping claws on both sides for gripping both sides of a board to be soldered, as shown in, for example, Japanese Utility Model Application Publication No. 54-169123. are provided so that the interval can be adjusted, so that the same holder can hold soldering boards of different sizes.

(Problems to be solved by the invention) With the conventional soldering holder described above, it is not possible to objectively judge which size of the board to be soldered it is gripping, and the distance between the gripping claws cannot be determined objectively. It was not possible to automate tasks such as adjusting the

The present invention has been devised in view of these points, and an object of the present invention is to make it possible to easily indicate which size of the board to be soldered is to be gripped.

[Structure of the idea]

(Means for Solving the Problems) The present invention provides gripping claws 4 on both sides of the hollow frame-shaped holder body 7 for gripping both sides of the board 3 to be soldered so that the interval between the gripping claws 4 can be adjusted. A soldering holder provided with a discrimination device that displays the interval between the gripping claws 4 on both sides at a plurality of positions,
Each of the above-mentioned discrimination devices has a polygonal support shaft 21 rotatably provided on the holder main body 7, an intermediate portion of a discrimination body 22 is fixed to the upper part of this support shaft 21, and the above-mentioned A compression coil spring 27 presses a support frame 26, which has two actuating protrusions 23 and 24 protrudingly provided with the support shaft 21 in between and is fixed to the upper surface of the holder main body 7, against the side surface of the support shaft 21. The child 28 is provided so that it can move forward and backward.

(Function) In the discriminating device provided at a plurality of positions on the holder main body 7, the present invention allows each discrimination to be performed by rotating the discriminating body 22 to any position by means of the actuating convex portions 23 and 24 on its upper surface. The combination of the bodies 22 represents the interval between the gripping claws 4 on both sides that grip the board 3 to be soldered, and the discrimination body 22 is biased by a compression coil spring 27 against the side surface of the polygonal support shaft 21. The pressed pusher 28 contacts and is held at the set position.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a conveyor 1 of a soldering line, and this conveyor 1 has endless chains 5 arranged in parallel on both sides via front and rear sprocket foils 6, and the rotation of the sprocket wheels 6. The endless chain 5 is circulated by.

The holder 2 is placed on the upper surface of the endless chain 5 on both sides and transported. As shown in FIG. 2, this holder 2 has one gripping claw mounting frame 8 fixed to one side of a hollow frame-shaped holder main body 7, and the holder main body 7 fixed to the other side of the holder main body 7. A gripping claw mounting frame 11 on the other side is movably supported by a fixing screw 10 passed through a long hole 9 bored in the front and rear width direction,
As shown in FIG. 7, the gripping pawls 4 whose lower ends are urged inwardly through spring-loaded hinges 12 are applied downward from the inner sides of the gripping pawl mounting frames 8 and 11 on both sides.
A gripping claw opening/closing operation pin 13 for opening and closing the gripping claws 4 is provided projecting upward from the center of the gripping claws 4 on both sides. Then, loosen the fixing screw 10 and move the gripping claw mounting frame 11 forward and backward in the width direction of the holder main body 7 to adjust the interval between the gripping claws 4 on both sides, and place the printed wiring board between the gripping claws 4 on both sides. Grip both sides of the board 3 to be soldered.

Further, as shown in FIGS. 5, 6, and 7 together with FIG. 2, the gripping claw mounting frames 8, 11 on both sides are
A lock body 16 is rotatably provided on the support shaft 15, and an engaging portion 17 that engages with the gripping claw opening/closing operation pin 13 is provided protruding from the lock body 16. A spring 18 biasing the claw opening/closing operation pin 13 side is wound around the support shaft 15, and is locked to the lock body 16 at a position outside the gripping claw opening/closing operation pin 13 and at the tip on the left side in FIG. A body rotation pin 19 is provided, and the lock body 16 is moved in the direction of releasing the engagement between the gripping claw opening/closing operation pin 13 and the engaging portion 17 by moving the lock body rotation pin 19 inward.
to rotate.

Furthermore, a discrimination device is provided on both sides of the holder main body 7 to display the interval between the gripping claws 4 on both sides.
As shown in FIG. 2, FIG. 3, and FIG. 4, this discriminating device has polygonal support shafts 21, such as regular hexagons, rotatably mounted on the conveyance rear end portions on both sides of the holder main body 7. The middle part of a substantially triangular discriminating body 22 is fixed to the upper part of this support shaft 21, and two actuating protrusions 23 and 24 are provided protruding from the upper surface of this discriminating body 22 with the support shaft 21 in between. do. Further, a support frame 26 is fixed to the upper surface of the holder main body 7 in the vicinity of the support shaft 21, and the support frame 26 is connected to the support shaft 26 by a compression coil spring 27.
A presser 28 biased toward the first side is provided so as to be able to move forward and backward,
The compression coil spring 27 presses the pusher 28 against the flat side surface of the polygonal support shaft 21, and the discriminating body 22 is selectively placed in either of the rotational states shown in the upper and lower parts of the left side of FIG. Lock and hold.

Further, as shown in FIG. 2, the holder main body 7
A warp prevention claw 31 is provided at the conveying tip portion of the conveyor, and further,
Moving rollers 32 are provided on the lower surface of both sides of the holder body 7, and guide rollers 33 for preventing lateral vibration are provided on the upper surface of both sides.
and a pin 34 for positioning the holder.

In FIG. 1, reference numeral 41 denotes a discriminator setting section, in which a pair of air cylinder actuators 43 and 44 are provided on both sides of the conveyor 1. Reference numeral 51 denotes a gripping claw interval adjustment unit, which screws and supports a movable table 56 on a screw shaft connected to a motor 55 so as to be movable laterally;
A motor 53 is supported at the front and rear of the movable table 56 via an air cylinder actuator 52 so as to be vertically movable, and an engaging body 54 is connected to the motor 53. Reference numeral 61 denotes a soldering board mounting section, in which a pushing air cylinder actuator 62 and a receiving body 63 are provided for a magazine rack 42 storing a large number of soldering boards 3, and four push-up cylinders are provided on this receiving body 63. A rod 64 is provided, and an air cylinder actuator 65 is connected to the receiving body 63 to move it laterally back and forth, and a push-up plate 67 is provided so as to be movable up and down by the air cylinder actuator 66.
Further, pressure plates 72 and 72a are provided on both sides of the conveyor 1 and are actuated by air cylinder actuators 71 and 71a.

Next, the operation will be explained.

The holders 2 are sequentially transported by the transport conveyor 1. Then, an empty holder 2 on which no soldering board 3 is mounted is detected by a photoelectric detector (not shown), and the holder 2 is stopped by a stopper (not shown) in the discriminator setting section 41 and placed in the magazine rack 42. The piston rods of a pair of air cylinder actuators 43 and 44 on both sides of the conveyor 1 provided in the discriminator setting section 41 are selectively driven forward and backward based on the size signal of the accommodated soldering target board 3. The piston rods of the actuators 43 and 44 cause the two operating protrusions 2 of the discriminator 22 to
3 and 24 to set the two discriminators 22 provided on both sides of the holder 2 to either one rotational state or the other rotational state, and grip both sides of the holder 2. To make it possible to determine the interval between claws 4. That is, depending on the state of the two discrimination bodies 22, four types of discrimination can be made regarding the gripping interval of the soldering target board 3: "11", "10", "01", and "00".

The two discrimination bodies 22 of the holder 2 are read by a photoelectric detector (not shown), etc., and the above-mentioned read discrimination signal is sent to the empty holder 2 which is stopped by a stopper (not shown) at the position of the gripping claw interval adjustment section 51. The interval between the gripping claws 4 is adjusted based on. That is,
The air cylinder actuator 52 lowers the front and rear motors 53 and the engaging body 54, engages the engaging body 54 with the fixing screw 10, rotates the motor 53 to loosen the fixing screw 10, and rotates the motor 55. The movable table 56 is moved by a distance corresponding to the read discrimination signal from the discriminator 22, and together with this movable table 56, the gripping claw mounting frame 11 on one side that is engaged via the engaging body 54 is moved to adjust the gripping claw interval. , rotate the motor 53 in the opposite direction, tighten the fixing screw 10, and then use the air cylinder actuator 52 to rotate the motor 53.
Then, the engaging body 54 is raised and removed from the fixing screw 10, and the motor 55 moves the movable base 56.
return to its original position.

The empty holder 2, in which the interval between the gripping claws 4 on both sides has been adjusted in advance according to the dimensions of the soldering board 3, is stopped by a stopper (not shown) in the soldering board mounting section 61, and the empty holder 2 is The plate 3 to be soldered is attached to the holder 2 of the holder 2. That is, the plate to be soldered 3 is removed from the magazine rack 42 by the extrusion air cylinder actuator 62.
The board 3 to be soldered is received by the receiver 63, and at this time, the upper ends of the four push-up bars 64 are opposed to the lower surface of the board 3 to be soldered, and the air cylinder actuator 65 is used to push out the board 3 to be soldered. Board 3
is sent to the lower part of the conveyor 1, the push-up plate 67 is pushed up by the air cylinder actuator 66, the lower ends of the four push-up bars 64 are simultaneously pushed up by this push-up board 67, and the upper ends of these four push-up bars 64 are pushed up. Push up the lower surface of the four corners of the board 3 to be soldered. Along with this, the pressing plates 72 of the air cylinder actuators 71, 71a on both sides provided above the holder 2,
72a to push the operating pin 13 of the holder 2 inward,
The gripping claws 4 on both sides are rotated to open, and the board 3 to be soldered rises between the opened gripping claws 4 on both sides.
and air cylinder actuator 71,
The pressing of the operating pin 13 by 71a is released, the gripping claws 4 on both sides are closed, and the board 3 to be soldered is gripped by the gripping claws 4 on both sides.

When opening and closing the gripping claws 4 on both sides, the press plate 7 of the air cylinder actuator 71, 71a
2, 72a, the lock body rotation pin 19 moves inward, and the lock body 16 rotates clockwise in FIG. is unlocked, and then the opening/closing operation pin 13 moves inward under the pressure of the pressing plates 72, 72a, the gripping claws 4 open, and conversely, the pressing plates 72, 72a move back, causing the opening/closing operation pin 13 to move inward. The gripping pawl 4 closes, and then the locking body 16
It is rotated counterclockwise in the figure by a spring 18, and the opening/closing operation pin 13 is locked by the engaging portion 17 of the lock body 16.

As shown in FIG. 8, the main body of the air cylinder actuator 71 on one side is fixed to the base 74, and the main body of the air cylinder actuator 71 on the other side is fixed to the base 74.
The main body of a is movable and adjustable in the width direction of the conveyor 1 by a feed screw 76 rotated by a motor 75 fixed to a base 74, and the gripping claws 4 on one side are moved by the gripping claw spacing adjustment section 51. As in the case of adjustment, the two discriminators 22 are detected, the main body of the air cylinder actuator 71a is adjusted to follow the set width, and the piston rods of the air cylinder actuators 71, 71a on both sides are pushed out and pressed. The holder 2 is attached by the plates 72 and 72a.
Push the pins 19 and 13 of the gripping claws 4 on both sides to open the gripping claws 4 on both sides.

Further, by increasing the number of discriminators 22, more types of discrimination can be performed. For example, if there are three discriminators 22, "111", "110", "101", "011", "100",
It can distinguish eight types: "010", "001", and "000".

[Effect of idea]

According to the present invention, in the discriminating device provided at a plurality of positions on the holder main body, the discriminating bodies are selectively rotated to any position by the operating convex portion on the upper surface of the discriminating body, thereby combining the discriminating bodies. can represent the distance between the gripping claws on both sides that grip the board to be soldered, and can also be read and determined by a detector. This makes it possible to automate the work of adjusting the interval between gripping claws.

In addition, the discriminator is attached to the side of the polygonal support shaft.
The presser biased by the compression coil spring comes into contact and can be easily and reliably held at the set position, and the discriminating body can be easily rotated to the selected position. Since the individual actuation protrusions protrude with the support shaft in between, the rotation of the discriminator can be performed smoothly and in a well-balanced manner, and when automated, the operation can be performed without any trouble.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a perspective view of the line for attaching the board to be soldered to the holder, Fig. 2 is a plan view of the holder, and Fig. 3 is a plan view of the discriminator part. , FIG. 4 is a side view thereof, FIG. 5 is a plan view of the lock body portion, FIG. 6 is a front view thereof, FIG. 7 is a sectional view thereof, and FIG. 8 is a front view of the grip claw opening/closing portion. 3...Plate to be soldered, 4...Gripping claw, 7...
Holder body, 21... Support shaft, 22... Discriminator, 2
3, 23... Operating convex portion, 26... Support frame, 27...
Compression coil spring, 28...presser.

Claims (1)

[Claims for Utility Model Registration] The hollow frame-shaped holder body is provided with gripping claws on both sides that grip both sides of the board to be soldered so that the interval can be adjusted. A soldering holder is provided with a discriminating device that displays the interval, and each of the discriminating devices has a polygonal support shaft rotatably provided on the holder main body, and a discriminating body with an intermediate portion attached to the top of the pivot. two actuating protrusions are provided on the upper surface of the discriminator with the support shaft in between; A soldering holder characterized by having a presser pressed against the holder that can move forward and backward.