JPS6171700A - Electronic part inserting gripper - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to an electronic component insertion gripper for inserting electronic components into a printed circuit board on which a large number of electronic components are inserted, such as an electronic package for an electronic exchange. In particular, the present invention relates to an electronic component insertion gripper suitable for additional mounting on a printed circuit board on which electronic components have already been mounted.

[Background of the invention]

Printed circuit boards such as single-child package for electronic switching equipment,
After components are mounted, circuit characteristics are often checked and electronic components that match the characteristics are additionally mounted. An automatic insertion device is required to perform this additional mounting automatically and efficiently. However, since other electronic components have already been installed, the remaining insertion area (referred to as a shadow area) becomes narrow, making automatic insertion difficult.

An example of a conventionally employed insertion gripper is disclosed in Japanese Patent Application Laid-Open No. 1987-196. This is formed from fixed claws, and the 17-card of the electronic component is inserted between the claws.The fixed claw is formed elongated in the insertion direction, and is placed on the side of the mounted electronic component. One of the movable claws is turned toward the unmounted side and swung to release the grip between the lead and the lead. however,
The above-mentioned gripper must insert the electronic component while holding the lead, and there is a concern that depending on the shadow area, it may interfere with the actual electronic component, causing damage or deformation. there were.

Other grippers insert the lead while holding it, and suffer from the same problems as above.

[Purpose of the invention]

The present invention is intended to solve the above-mentioned problems, and its purpose is to provide an electronic component insertion system that can be inserted into a narrow space without damaging or deforming the electronic components mounted thereon. The purpose of the present invention is to provide a gripper.

[Summary of the invention]

In order to achieve the above object, the present invention has a cylinder block fixed to a portable drive mechanism side of a robot, etc., and an elongated protrusion protruding from the cylinder block, so that an extrusion bottle can be slid freely. A cam follower is provided at an intermediate position of the protrusion of the broken extrusion bottle and protrudes in the radial direction, and a pair of lever-shaped pawls disposed facing each other across the protrusion are attached to the cylinder. The block is pivotably attached to the block, and an engaging part that engages with the lead of the electronic component is released at the opening/closing end part of the claw member that is spaced from or close to the part q, and the engaging part force is applied to the above. A tapered part is formed that extends toward the cam follower along the axis of the protrusion, and guides and supports the cam follower, and the moving means closes the locking part of the claw member, and pushes out the ejecting bottle. The gripper is an electronic component insertion gripper that is formed so as to simultaneously perform the opening operation of the claw member and the insertion operation of the electronic component.

[Embodiments of the invention]

Embodiments of the present invention will be described below based on the drawings.

First, an outline of this embodiment will be explained.

As shown in FIG. 1, the cylinder block 2 is suspended via a suspension rod 1 to a portable drive rod structure such as a robot (not shown).

The extrusion bottle 3 is slidably supported by the cylinder block 2, and a protrusion 5a protruding from the printer block 2 is formed into an elongated shape, and is inserted into the tip thereof. "Child part 17
The 91st part of the contact comes into contact. Further, a cam follower 19 extending in the radial direction is fitted into the intermediate portion of the protrusion f'A 5 a.

A pair of claw members 8, which are wedge-shaped lever members, are pivoted to the cylinder block 2 through rotation @9 at their crotches, and engage an electronic component to be inserted. A locking portion 16 is formed to clamp the root portion J'rfYf of the lead 18 of the electronic component 17. Further, the pawl member 8 is provided with an elongated tapered portion 24 that extends from the locking portion 16 toward the cam follower 19 side along the axis of the protruding portion 3a. The cam follower 19 is guided and supported by the tapered portion 24.

As will be detailed later, the driving means is operated by the opening/closing bin 10 that comes into contact with the claw member 8, a mechanism for transmitting power from a power source to the opening/closing bin 10 and the pusher bin 3, and the opening/closing bin 10, etc., and the opening/closing bin 10. a spring 14 for returning the claw member 8 to its original position; 7. 15 mag.

According to the above-mentioned method, the electronic component 17 to be inserted is held between the claw members 8 and the lead 18 is inserted into the insertion hole 2 of the printed circuit board 21.
2, move the push-out bottle 6, release the claw member 8 with the cam follower 19, and push the electronic component 1 with the protrusion 6a.
7 and completely push the lead 18 into the insertion hole.

Next, this embodiment will be explained in more detail.

There is a hole in the center of the cylinder block 2: qftl hole 4
are drilled, and cylindrical holes 11 are drilled in four opposing positions on the same circumference.

A pusher bottle 3 is slidably supported within the cylindrical hole 4.

The extrusion pin 3 is formed with the protrusion 32 as described above, and the cam follower 19 is fitted into the protrusion 3a.

The lower member 8 is shaped like a pair of L-shaped lever members consisting of a two-pronged lever on the driving side and a driven side. horse e
Arranged with the driven side facing each other.

At the opening/closing end of the driven side, a link LI: section 16 is formed as shown below. Further, the tapered portion 24 is formed on the side facing the driven side. This tapered portion 24 is formed to be as elongated as possible so as not to interfere with the electronic components 25 already mounted on the printed circuit board 21. Further, as described above, the cam follower 19 comes into contact with the taper g (S24) and is guided and supported.

Drive: The f-1 stage opening/closing bin 10 is a cylinder block 20
It is slidably supported in the circumferential hole 11, and its protruding end comes into contact with the lever on the driving side of the claw member 8. At the open ends of the cylindrical holes 4 and 11 there are camps 3 and 12.
It will fit in, so close it. A through hole 20.23 is bored in the caps 5 and 12, and a hole 72 is formed in the w passer 20.23.
A plug 6.13 with an air hole is fitted. Compressed air from a power source (not shown) is supplied to the cylindrical hole 4 as shown by arrows A and B.
11 to move the pusher bottle 3 and opening/closing pin 10 downward in the figure. These are placed between the bottoms of the cylindrical holes 4 and 11 and the push-out bottle 3 and the opening/closing bottle 10 as shown in arrow A.
, springs 7 and 11 are interposed which bias the springs in a direction opposite to the B direction. Further, a spring 15 is interposed between the driven side of the pawl member 8 and the cylinder block 2, and biases the locking portion 16 of the pawl member 8 in the direction of opening.

Next, the operation of this embodiment will be explained.

As shown in Figure 1, the electronic component 17 to be inserted is attached to the claw member 8.
The base of the lead 18 is locked between the locking parts 16 of the lead 18. When compressed air is introduced into the cylindrical hole 11 through the plug 10° through hole 23, the opening/closing bottle 10 pushes the claw member 8, causing it to rotate. As a result, the electronic component 17 is held between the locking portions 16. In this state, the tip of the protrusion 3a of the push-out pin 3 contacts a part of the electronic component 17, and the cam follower 19 also lightly contacts the tapered portion 24.

Next, the suspension rod 1 is moved to a predetermined position, the tip of the lead 18 of the electronic component 17 held by the claw member 8 is exposed to the insertion hole 22 of the printed circuit board 21, and a small amount is inserted.

Next, compressed air is introduced into the cylindrical hole 4 through the plug 6 and the through hole 2o, and the push-out pin 3 is moved downward in the figure.
4, the locking portion 16 of the claw member 8 is released. At the same time, the electronic component 17 is
, and the lead 18 is inserted into the insertion hole 22.

As shown at A' 41a, when the push-out pin 3 is further lowered, the lead 18 is inserted deeply and the insertion is completed.

After the insertion is completed, when the compressed air in the cylindrical holes 4 and 11 is removed, the push-out pin 3 and the opening/closing pin 1o are restored by the springs 7 and 14, and the claw member 8 also springs to the locking portion 16 due to the action of the spring 15.
Returns to the original state when released.

As described above, the M child component 17 to be inserted is held between the claw members 8 and carried to a position where the tip of the lead 18 faces the insertion hole 221F, but the claw member 8 stops at that position and the first child component 1
Perform the opening operation in step 7. Therefore, there is no possibility that the claw member 8 will interfere with other electronic components 25 already mounted. Furthermore, since the electronic component 17 is inserted using the long pusher pin 3a, it does not interfere with other electronic components.

Furthermore, since the cam follower 19 is guided by the tapered portion 24 during the insertion of the lead 18, the pusher bottle 6 moves straight without falling sideways, thereby ensuring reliable and stable insertion.

In this embodiment, the above-mentioned Kai-made drive means is used, but the drive means is not limited to this, as long as the reciprocating movement of the push-out pin B and the opening and closing of the claw member 8 are performed sequentially.

〔Effect of the invention〕

As is clear from the above explanation, according to the present invention, it is possible to insert even into a narrow shadow area.
Additional mounting can be carried out without damaging or deforming the thunderbolt parts, and it is also possible to perform successful and stable insertion, thereby achieving the effect of automating insertion.

[Brief explanation of the drawing]

Figure 1 is a sectional view of one embodiment of the present invention, and Figure 2 and 4 are
The figure is a partial sectional view for explaining the operation of the embodiment. 2... Cylinder block, 3... Extrusion bottle, 3a
...Protrusion, 4,11...Cylindrical hole, 5.12...
Camp, 6.13...Plug, 7. 14. 15
... Spring, 8... Claw member, 9... Rotating shaft, 10...
・Opening/closing pin, 16...Locking part, 17.25...Electronic component, 18...Lead, 19...Cam follower, 20.2
3... Air hole, 21... Printed circuit board, 22... Insertion hole, 24... Tapered part.

Claims (1)

[Claims] In an electronic component insertion gripper that is suspended on a portable drive mechanism and that grips the lead of an electronic component and inserts it into a predetermined position on a printed circuit board, it is slidably supported by a cylinder block that is fixed to the portable drive mechanism side. an elongated protrusion protruding from the cylinder block, and an extrusion pin provided with a cam follower protruding in the radial direction at an intermediate position of the protrusion; A pair of lever members are disposed facing each other with the protruding portion in between, and a locking portion that engages with the lead of the electronic component is formed at the open/closed end portions of the lever members that are spaced apart or close to each other. At the same time, it spreads from the locking portion toward the cam follower side along the axis of the protrusion,
An electronic component insertion gripper comprising: a claw member forming an elongated tapered portion for guiding and supporting the cam follower on the opposing sides; and a driving means for reciprocating the ejection pin and the claw member.