JPS6134955B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an article transfer device for electronic parts and the like to an electronic circuit board, and particularly relates to a regulating claw.

2. Description of the Related Art Conventionally, article transfer apparatuses as shown in FIGS. 1 to 8 have been considered for devices for transferring electronic components, particularly leadless type microelectronic components (hereinafter referred to as chip components), to circuit boards. The explanation will be given below based on the drawings.

FIG. 1 is a partial perspective view showing the chip component transfer device. Reference numeral 1 denotes chip parts. The chip parts 1 are arranged in a vibrating chute 2, for example, and the chip parts 1 are picked up one by one by a suction tool 3 at the tip and moved to a predetermined position. The mechanism and operation of this device will be explained in detail with reference to FIGS. 2 to 4. Second
In the figure, the suction tool 3 is connected to the rod 4, and the vibration of the lever 5 by external means causes the rod 4 to be moved through the roller 20, the sliding ring 21, the compression spring 22, and the lever 23 fixed to the rod 4. And the suction tool 3 moves up and down. Here, the compression spring 22 is provided to maintain the pressing force of the suction tool 3 against the chip component 1 at a predetermined value, and the rod 4 and the suction tool 3 are provided with air suction to suction the chip component 1. Through holes 4a and 3a are provided for
The other end of the rod 4 is connected to an air suction device. Further, the rod 4 is held so as to be vertically slidable by a rotary boss 6, and a guide rod 24 attached to a lever 23 fixed to the rod 4 is engaged with the rotary boss 6, so that the rod 4 and the rotary boss 6 are connected to each other. It prevents rotation. The rotary boss 6 is rotatably held via a bearing 25 by a moving block 7 which is horizontally movable by external means. Here, the moving block 7 has two guide rods 27, 2 fixed to the main body frame 26.
It is attached by bolts 29 to a sliding block 28 which is slidable by 7'.

Next, the 90° rotation mechanism of the rod 5 will be explained mainly with reference to FIG. The rotary boss 7 has a roller 30
is attached, and this roller 30 is urged so as to always come into contact with a cam 31 fixed to the main body frame 26. As a biasing means, a spring hook 32 fixed to the rotary boss 6 and a spring hook pin 33 fixed to the moving block 7 are connected by a tension spring 34.
When the movable block 7 moves horizontally for a predetermined distance, the roller 30 and the cam 31 always engage with each other, so that the rotary boss 6 can be rotated through 90 degrees. The 90° rotation release mechanism of the rod 4 will be explained. A stopper fitting 36 is attached to the tip of an air cylinder 35 fixed to the sliding block 28, and the stopper fitting 36 can be moved in the direction of arrow Z in FIG. 2 by the operation of the air cylinder 35. When releasing the 90° rotation of the rod 4, move the stopper fitting 36 forward and rotate the rotation boss 6.
The tension spring 34 is pressed against a predetermined location to lock the biasing force of the tension spring 34.

Next, the position adjustment mechanism during chip component transfer will be explained. At one end of the rotary boss 6, a sliding boss 9 is supported by a suction tool 3 on the lower outer periphery of the rotary boss 6 via a compression spring 8, so as to be slidable in the vertical direction. Then, the guide pin 10 fixed to the rotating boss 6 is slidably fitted into the elongated hole 9a provided in the sliding boss 9, so that the sliding boss 9 rotates together with the rotating boss 6, and is attached to the rotating boss 6. On the other hand, it becomes possible to move a predetermined amount in the axial direction relatively to the other. A fulcrum shaft 11,1 is provided on one side of the sliding boss 9.
1' is screwed, and the positioning claws 13, 1
3' is rotatably supported around fulcrum shafts 11, 11'. Figure 2 shows the suction tool 3 reaching its rising end, the upper shoulder 3' of the suction tool 3 pushing up the sliding boss 9, and the positioning claws 13, 13' closing to adjust the position of the component. It shows the condition.

The groove construction for position regulation will be explained in more detail based on FIGS. 3 to 7. Figure 3, Figure 4,
FIG. 5 is a front view in the direction of the AA arrow, a side view, and a view in the direction of the BB arrow in FIG. 2, respectively. In these figures, fulcrum shafts 11, 11', 12, 12' are screwed to two mutually perpendicular side surfaces of the sliding boss 9, and these fulcrum shafts 11, 11', 12, 12' , position regulating claws 13, 13' and 14, 14', which are meshed with component gears, are guided so as to be rotatable in opposite directions. Further, tension springs 15 and 16 are installed between the position regulating claws 13 and 13', and between 14 and 14', respectively, and are biased in the direction of closing the claws. In FIGS. 3 to 5, the position regulating claws 13, 13' and 14, 14' are in a closed state. FIGS. 6 and 7 are respectively a front view in the direction of the AA arrow and a front view in the direction of the BB arrow in FIG. 2, and show the positioning claws 13, 13' and 14, 14' in an open state.
In these figures, when the suction tool 3 is lowered, the upper shoulder portion 3' comes into contact with the lower part of the sliding boss 9, and the sliding boss 9 is lowered until the upper part of the elongated hole 9a contacts the guide pin 10. At this time, since the guide pin 10 is fixed to the rotation boss 6, the position regulating claws 13, 13'
is opened by the guide pin 10, and similarly, the position regulating claws 14, 14' are opened by the guide pin 10'. By the above-described operation, the position of the chip component 1 suctioned by the suction tool 3 can be adjusted.

Next, the principle will be explained based on FIGS. 8a, b, c, and d. In this figure, two directions out of four position regulation directions are shown for ease of explanation. Figure 8a
In the process, the chip parts 1 are fed into the vibrating chute 2 in a line, and when the suction tool 3 picks them up, the position regulating claws 13, 13' are open. FIG. 8b shows the chip part 1 being suctioned by the suction tool 3, and at this time also the positioning claw 13,
13' remains open. In Figure 8c, suction tool 3
While transferring the chip component 1 from the vibrating chute 2 to a predetermined position on the mounting board 18, the positioning claws 13 and 13' are closed to adjust the position of the chip component 1. In FIG. 8d, the positioning claws 13, 13' are opened, the suction tool 3 is lowered, and the chip component 1 is mounted on the substrate 18.

The above is a conventional example of a chip component transfer device.
3', 14, 14' are integrated, so that the position regulating claws 13, 13', 1 that press the chip part 1
4, 14' cannot be finely adjusted, and since the main body of the tip part 1 is made of ceramic material, the tip surfaces of the positioning claws 13, 13', 14, 14' may wear out during use. Even if the position adjustment claw 13,
It has a drawback that it is necessary to replace the entire parts 13', 14, and 14'.

The present invention solves the above-mentioned conventional problems, and an embodiment thereof will be described below based on FIG. 9.

The basic configuration and basic operation of this embodiment are the same as the chip component transfer device of the conventional example, but the configuration of the portions corresponding to the position regulating claws 13, 13', 14, and 14' differs from the conventional example. .

Reference numeral 112 denotes a position regulating lever, which has a shape obtained by removing the tips of the conventional position regulating claws 13, 13', 14, 14'. Reference numeral 113 denotes a regulating pawl, which fits into a dovetail groove 114 formed below the position regulating lever 112, is slidable in the direction of arrow X, and is made of a material that can be hardened to a certain hardness. . Reference numeral 113a denotes a regulating surface of the chip component 1 provided on the regulating claw 113, and the chip component 1 can be used after polishing again to prevent wear of the regulating surface 113a that occurs when the chip component 1 is being calibrated. Reference numeral 115 is located above the dovetail groove 114 of the position regulating lever 112, and the position regulating lever 112 and the regulating pawl 113 are connected to the dovetail groove 114 by the bolt 116.
This is a tightening groove for slidably and fixing the

In FIG. 9, one position regulating lever 11 is shown.
Although only the shapes of 2 and the regulating claw 113 have been explained,
The same goes for the other three.

As described above, according to the present invention, by using the grooved positioning pawl, not only can delicate adjustments be easily made when centering chip parts, but also the wear of the regulating surface at the tip of the positioning pawl can be reduced. It is also highly effective in that it can be easily dealt with simply by reprocessing without replacing the standard claw.

[Brief explanation of the drawing]

FIG. 1 is a partial perspective view of a conventional article transfer device, FIG. 2 is a cross-sectional view of the same, FIG. 3 is a view taken along the line A-A in FIG. 2, and FIG. 4 is a C--C in FIG. 5 is a view taken along the line B-B in FIG. 2, and FIG. 6 is a view shown in FIG. 2 A when the positioning claw is open.
- A view in the direction of arrow A, FIG. 7 is a view in the direction of the B-B arrow in FIG. FIG. 3... Adsorption tool, 4... Rod, 26... Body frame, 112... Position regulating lever, 113...
Regulatory claw, 114...Dovetail groove.

Claims (1)

[Claims] 1. A suction tool for adsorbing the transferred article is provided at the tip,
a rod to which an air suction device is connected; a main body frame that supports the rod movably in vertical and horizontal directions; a position regulating lever that is supported so as to be openable and closable so as to sandwich the article; a regulating claw that is detachable from a first groove provided at the tip of the position regulating lever and that is slidable in a direction to sandwich the transferred article; An article transfer device comprising means for fixing the regulating pawl at an arbitrary sliding position with respect to the position regulating lever, and means for opening and closing the position regulating lever. 2. By providing a second groove parallel to the first groove and connected to the first groove in the position regulating lever, and applying pressure in a direction to narrow the width of the second groove, the regulating pawl is The article transfer device according to claim 1, wherein the article transfer device is configured to fix the article at an arbitrary position. 3. The article transfer device according to claim 1 or 2, wherein a dovetail groove is used as the first groove in which the regulating pawl slides.