JPH033957B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to an electronic component mounting device for mounting components on an insertion hand in an automatic insertion machine for mounting electronic components, particularly discrete components, onto a printed circuit board. It is something.

[Prior art]

Conventionally, this type of automatic insertion machine for electronic components is as follows:
Two methods have been adopted: one method involves gripping the main body of an electronic component and inserting the electronic component into a printed circuit board, and the other method involves gripping the lead portion and inserting the electronic component. The former was applied to parts with good precision, and the latter was applied to parts with poor precision. The present invention relates to the latter type of electronic component insertion machine that grips lead components, and is particularly applicable to electronic components having three or more leads.

Traditionally, these types of electronic components, especially discrete components, have been inserted into printed circuit boards manually or with an automatic insertion machine like the one mentioned above, but with this automatic insertion machine, When automatically inserting an electronic component, the precision of the lead of the electronic component is poor, so it is necessary for the insertion hand to guide the lead.

However, in the component feeding position where the component 1 is on the guide rail 2 as shown in FIGS. 1a and 1b, it is difficult for the insertion hand to grip the lead 3 reliably. Further, when the lead of a component is long and bent, it is not possible to automatically mount the component on an insertion hand having a lead guide claw. Therefore, automatic insertion of such electronic components has been quite difficult.

Note that arrow C in FIG. 1b indicates the supply direction of parts.

[Summary of the invention]

This invention was made to eliminate the drawbacks of the conventional products, and includes a first push-up shaft that pushes up the bottom surface of the electronic component body and a second push-up shaft that pushes up the leads of the electronic component. The object of the present invention is to provide an electronic component mounting device for an insertion hand that can mount components on the insertion hand so that the insertion hand can reliably grip a lead by operating both push-up shafts in conjunction with the insertion hand. .

[Embodiments of the invention]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 2 shows an apparatus for mounting electronic components onto an insertion hand according to an embodiment of the present invention. In Figure 2, 1
is an electronic component having three leads 3; 2 is a guide rail that supports this component 1; 4a, 4b, and 4c are lead gripping claws provided on the component insertion hand so that they can be opened and closed by an actuator (not shown); Three leads are provided as shown in FIG. 4, corresponding to the number and position of the leads 3. Each of the lead gripping claws 4a, 4b, and 4c has a V-shaped groove 20 formed at its tip in parallel with the lead 3 so that the lead can be guided when inserted into a printed circuit board. 8 is in contact with the lower surface of the main body of the electronic component 1, and the lead 3 is in contact with the lead gripping claw 4 of the insertion hand.
This is a first push-up shaft that pushes up until it comes to a position where it can be gripped by a, 4b, and 4c.
The actuator 17 moves the movable shaft 19, the support plate 18, the second actuator 11, and the movable shaft 12.
It is designed so that it can be pushed upward together with the push-up table 10 via the push-up table 10. Reference numeral 10 denotes a push-up table which is a second push-up shaft that comes into contact with the tip of the lead 3 of the electronic component 1 and pushes it up. The movable shaft 19, the support plate 18,
The second actuator 11 is pushed up via the movable shaft 12, and the second actuator 1
1 through a movable shaft 12. Furthermore, the first push-up shaft 8
is a push-up stand 10 and a spring receiver 1 that is the same as the push-up stand 10.
4 is supported by a spring 13 and constantly pushed upward, and its position is determined by the protrusion 6 of the frame 15 that comes into contact with the stopper 7 provided on the first push-up shaft 8. . That is, when the first push-up shaft 8 is pushed upward by the operation of the first and second actuators 17 and 11, the stopper 7 engages with the protrusion 6 provided at one end of the frame 15 in a predetermined position. They are provided so as to come into contact with each other at certain positions.
A cam 9 is provided on the upper surface of the push-up table 10, and when the push-up table 10 is pushed upward by the operation of the second actuator 11 and the first actuator 17, the guide rail 2 is moved to the fifth position. It can be expanded as shown in the figure.

Next, the operation will be explained. The insertion hand descends from above the supplied electronic component 1 with the lead 3 guided on the guide rail 2 by a pusher (not shown) with the lead gripping claws 4a to 4c released (as shown in FIG. 2). situation). Next, when the first actuator 17 is actuated, the support plate 18, the second actuator 11, and the push-up base 10 are raised, and the spring receiver 14 and the spring 1, which are integral with the push-up base 10, are raised.
The first push-up shaft 8, which is urged upwardly against the push-up table 10 by the push-up table 10, also rises. Along with this movement, the component 1 rises with its bottom supported by the first push-up shaft 8, and the component body 1a is supported and inserted into the elastic plates 5a to 5c in a stable posture. (See Figure 3a). In this state, there is a gap between the component body 1a and the guide rail 2, and the component body 1a is attached to the lead gripping claws 4a to 4 of the insertion hand.
c has been raised to a position where the lead 3 can be gripped without interfering with the component 1.

Next, when the lead gripping claws 4a to 4c are closed by an actuator (not shown), the lead 3 is moved to the lead gripping claw 4.
It enters into the V-shaped groove 20 provided in sections a to 4c (see Fig. 3b). In this length, the lead gripping claw 4a~
When the lead 3 is gripped by the handle 4c, the lead 3 can be reliably guided through the V-shaped groove 20 without being affected by bending of the lead 3 or the like. Next, when the second actuator 11 is actuated, the push-up table 10 begins to rise further, comes into contact with the tip of the lead 3, and pushes up the component 1 further. At the same time, the cam 9 spreads the guide rail 2 so that the push-up table 10 is not prevented from pushing up the lead 3. At this time, the first push-up shaft 8 stops upward movement midway because the stopper 7 and the protrusion 6 come into contact with each other. When the second actuator 11 completes its operation, the push-up base 10 moves the lead gripping claws 4a to 4c.
As a result, the tip of the lead 3 is flush with the lower end of the lead gripping claws 4a to 4c, and in this way, the lead 3 is securely installed within the lead gripping claws 4a to 4c. (See Figure 3c).

From this state, the second and first actuators 1
1 and 17, and also raise the lead gripping claws 4a to 4c using an actuator (not shown), the component body 1a is moved to the elastic plate 5 as shown in FIG. 3d.
While being supported by the leads 3a to 5c, the lead 3 is securely attached to the V-shaped groove 20 of the lead gripping claws 4a to 4c up to the tip. In this state, the component 1 is transferred onto a printed circuit board (not shown), and the pushers 16 provided within the lead gripping claws 4a to 4c and the elastic plates 5a to 5c are operated to insert the component 1 onto the printed circuit board.

In this way, in the device of this embodiment, the electronic component main body 1
a. A first push-up shaft 8 that pushes up the bottom part and a push-up table 10 that pushes up the component 1 by contacting the tip of the lead 3 are independently provided, and the lead gripping claw 4 of the insertion hand is provided.
I made it work in conjunction with a to 4c, so
The lead 3 can be reliably mounted within the lead gripping claws 4a to 4c, and as a result, the electronic component 1 can be automatically inserted into the printed circuit board.

Although the above embodiment describes the electronic component 1 having three leads, the number of leads may be any number as long as it corresponds to the number of lead gripping claws.

〔Effect of the invention〕

As described above, according to the device for mounting electronic components onto an insertion hand according to the present invention, the first push-up shaft that pushes up the lower part of the main body of the electronic component and the second push-up shaft that pushes up the lead are independent of each other. Since it is provided with a lead gripping claw and is configured to operate in conjunction with the lead gripping claw,
This has the effect of automatically attaching the electronic component to the insertion hand so that the insertion hand can reliably grip the electronic component even if the lead is bent.

[Brief explanation of drawings]

FIGS. 1a and 1b are side and front views showing the feeding posture of electronic components, FIG. 2 is a partially sectional front view of an electronic component mounting device for an insertion hand according to an embodiment of the present invention, and FIG. 3a -d are front views showing the sequence of parts mounting operations, Fig. 4 is a view taken along the - arrow in Fig. 3d showing the positional relationship between the lead gripping claw and the lead, and Fig. 5 is a view of the pusher when the pusher is raised. FIG. 3C is a view taken along the - line in FIG. 3C showing the operating state of the cam, parts, and guide rail; 1...Electronic component, 1a...Electronic component body, 3...
...Lead, 4a, 4b, 4c...Lead gripping claw,
8... First push-up shaft, 10... Push-up stand (second push-up shaft). Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Claims] 1 A mounting device for mounting an electronic component onto the insertion hand of an automatic insertion machine that mounts electronic components onto a printed circuit board, wherein the electronic component body is brought into contact with the bottom surface of the body and its leads are held by the lead gripping claws of the insertion hand. The first part is pushed up until it reaches a predetermined position where it can be grasped.
and the push-up shaft of the electronic component, which has been pushed up to the predetermined position and whose lead is gripped by the lead gripping claw of the insertion hand, is brought into contact with the lead tip, so that the lead tip is flush with the lower end of the lead gripping claw. 1. A device for mounting an electronic component onto an insertion hand, comprising: a second push-up shaft for pushing up the insertion hand.