JPH09162599A - Parts pushing-in body for automatic parts mounting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accurately mount parts on a printed board by providing a projecting section having such a thickness that the projecting section can be inserted between two facing pieces of parts at the center of the lower end section of a substrate on which a rectangular parts pushing-in body is formed of a synthetic resin and shoulder sections which come into contact with the upper ends of the two facing pieces on both sides of the projecting section. SOLUTION: A parts pushing-in body 1 is made of such an elastic synthetic resin as the polyurethane rubber and has a rectangular shape as a whole. A projecting section 3 is formed at the center of the lower end section of a substrate 2 and shoulder sections 4 are formed on both sides of the projecting section 3. The thickness of the substrate 2 is set at A1 which is larger than the interval A between the upper end sections of the two holding pieces 6 of parts having two facing pieces, such as a fuse holder 5, and the thickness of the projecting section 3 is set at A2 which is smaller than the interval A. A recessed section 9 in which the lower section of the functional member 8 of the head 7 of a parts mounting machine is put is formed on the upper surface of the substrate 2. Therefore, the parts can be mounted accurately on a printed board.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component pushing body used when a component is automatically mounted on a printed circuit board by a mounter.

[0002]

2. Description of the Related Art Generally, when mounting components on a printed circuit board in electronic equipment, a mounting machine called a so-called insert machine is used. More specifically, as shown in FIG. 4, a component, here a fuse holder 17, is held by the head 16 of the mounting machine, and the fuse holder 17
The lead terminal 18 led out below is inserted into the terminal insertion hole 20 of the printed circuit board 19 from above, and the tip of the lead terminal 18 passed through the terminal insertion hole 20 by the anvil unit 21 arranged below the printed circuit board 19. The fuse holder 17 is mounted on the printed circuit board 19 by cutting and bending the unnecessary portion.

By the head 16, the fuse holder 1
7 lead terminal 18 to the terminal insertion hole 2 of the printed circuit board 19
When inserting the lead terminal 18, the anvil unit 21 guides the insertion of the lead terminal 18 by the guide member 22 with which the tip of the lead terminal 18 fits. At this time, a force for pushing the fuse holder 17 must be applied. .

Here, conventionally, as shown in FIG. 5, a fuse is inserted through a push-in body 23 made of polyurethane rubber and having a rectangular shape having a thickness that can be inserted between two holding pieces 17a of the fuse holder 17. A force for pushing the holder 17 was applied. The pushing body 23 is made to have elasticity so that the fuse holder 17 is not damaged during pushing.

[0005]

By the way, in general, when the distance A between the upper ends of the sandwiching pieces 17a of the fuse holder 17 varies, and the distance is smaller than the thickness of the push-in member 23, as shown in FIG. As described above, the lead terminal 18 of the fuse holder 17 is held in a state in which the lower portion of the push-in member 23 hits the upper end of the holding piece 17a and is prevented from being inserted between the holding pieces 17a.
The pushing force cannot be effectively applied to the fuse holder 17, and the fuse holder 17 cannot be mounted correctly.

Further, since the push-in body 23 has elasticity, it has a frictional resistance, and is tilted as much as possible, so that the two holding pieces 17a are inclined.
When inserted into the space, due to the imbalance of the frictional resistance on both sides, even if the pushing body 23 is inserted between the two holding pieces 17a, the pushing body 23 is largely inclined as shown in FIG. 6 (b), The pushing force of the pushing body 23 does not work effectively on the lead terminals 18, and the fuse holder 17 is mounted in an inclined state, resulting in mounting failure.

In view of the above-mentioned conventional problems, the present invention provides a component pushing body for automatic component mounting, in which a component such as a fuse holder is applied with a pushing force in a correct direction to accurately mount the component on a printed circuit board. With the goal.

[0008]

According to the present invention, there is provided a component pushing body for an automatic component mounting machine, wherein a lead terminal of a component having at least two facing pieces is inserted into a terminal insertion hole of the printed circuit board so that the component is printed. A component pusher for mounting on a component, wherein the component pusher is formed into a rectangular parallelepiped as a whole by a synthetic resin material, and a thickness inserted between two facing pieces of the component at the center of the lower end of the base body. The projections are provided, and shoulders are provided on both sides of the projections to abut the upper ends of the two facing pieces.

According to the present invention, the component such as the fuse holder is subjected to the pushing force in the correct direction, the component can be accurately mounted on the printed circuit board, and the mounting defect of the component can be eliminated.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is characterized in that a component having at least two facing pieces is inserted into a terminal insertion hole of a printed circuit board by an automatic component mounting machine to obtain the component. Is a component pushing body for mounting on a printed circuit board, wherein the component pushing body is formed into a rectangular parallelepiped as a whole by a synthetic resin material, and is inserted between two facing pieces of the component at the center of the lower end of the base body. And a shoulder with which the upper ends of the two opposing pieces are abutted on both sides of the protrusion, the component pusher for an automatic component mounting machine is provided. In a head of an automatic component mounter, a part having two facing pieces, for example, a protrusion is inserted between two holding pieces of a fuse holder, and shoulders on both sides of the protrusion are formed between the two holding pieces of the fuse holder. Up When the fuse holder is in contact with the fuse holder, that is, the fuse holder is kept vertical and the pushing force is applied, the lead terminal of the fuse holder can be inserted into the terminal insertion hole of the printed circuit board without tilting. Are accurately mounted on the printed circuit board.

Embodiments of the present invention will be described below with reference to FIGS. (Embodiment 1) FIG. 1 is a perspective view of a component pushing body for an automatic component mounting machine according to a first embodiment of the present invention, and FIG. 2 schematically shows the component pushing body and a head and anvil unit related thereto. FIG. 3 is a perspective view, and FIG. 3 is a sectional view showing a pushed state of the component pushing body.

As shown in FIG. 1, a push-in body 1 for a component for an automatic component mounting machine is made of synthetic resin having some elasticity, polyurethane rubber in the first embodiment, and has a substantially rectangular parallelepiped shape as a whole. Then, the lower end portion of the base body 2 is formed in a convex shape, that is, a shape having a central protruding portion 3 and shoulder portions 4 on both sides of the base portion of the protruding portion 3. The thickness of the base 2 is a component having two facing pieces shown in FIG.
Then, A1 is larger than the distance A between the upper ends of the two holding pieces 6 of the fuse holder 5, and the thickness of the protrusion 3 is smaller than A2 between the upper ends of the holding pieces 6. A concave portion 9 is formed on the upper surface of the base 2 so that the lower portion of the functional member 8 of the head 7 of the mounting machine shown in FIG.

As shown in FIG. 2, the fuse holder 5
As is generally seen, the upper ends of the two holding pieces 6 (here, one piece is divided into two pieces into four pieces) are opened outward so that a fuse (not shown) can be easily fitted. The middle abdomen is curved to hold the fuse. The lower part has a lead terminal 10 extending downward. There are two lead terminals 10, and the reason why two lead terminals 10 are provided is that the fuse holder 5
When mounted on the printed circuit board 11, the fuse holder 5
This is to prevent the rotation.

Next, the operation of the pushing body 1 will be described. As shown in FIG. 3, the pusher 1 is held by the head 7 of the mounting machine, and the lower end of the functional member 8 of the head 7 is fitted in the recess 9 of the upper surface of the fuser. It is located above the holder 5. Functional member 8
Moves downwards, and the protrusion 3 of the pusher 1 moves to the 2
It is inserted between the two sandwiching pieces 6 facing each other, and the shoulders 4 on both sides of the protrusion 3 abut on the upper ends of the two sandwiching pieces 6. Since the thickness of the protrusion 3 is smaller than the distance between the two opposing holding pieces 6, the protrusion 3 can be smoothly inserted without resistance. Since the shoulder portion 4 contacts the upper end portion of the holding piece 6, the pushing body 1 has a vertical relationship with the fuse holder 5. Therefore, when the functional member 8 moves downward, the push-in body 1 pushes the fuse holder 5 and the lead terminal 10 right below, and the lead terminal 10 is inserted into the terminal insertion hole 1 of the printed circuit board 11.
Inserted into 2.

At this time, the lower end portion of the lead terminal 10 is located below the printed circuit board 11 and the anvil unit 1 is provided.
3 is fitted in the recess 15 at the upper end of the guide member 14,
The lead terminal 10 is guided downward by the downward movement of the guide member 14. After that, the excess portion of the lead terminal 10 of the fuse holder 5 that penetrates the printed board 11 is cut and bent by the anvil unit 13, and the fuse holder 5 is mounted on the printed board 11.

In this way, the fuse holder 5 is pushed by the pushing body 1 without tilting, so that the fuse holder 5 is mounted on the printed board 11 without tilting, and no mounting failure occurs. After mounting the fuse holder 5,
The pusher 1 moves up together with the head 7 and is used for mounting the next fuse holder.

In the above description, the material of the pushing member is polyurethane rubber, but other similar synthetic resins having some elasticity, such as polypropylene and nylon, may be used. Although the component to be mounted is the fuse holder, it may be a component having two facing pieces.

[0018]

As is apparent from the above description, the present invention is a component for mounting the component on a printed circuit board by inserting the lead terminal of the component having at least two facing pieces into the terminal insertion hole of the printed circuit board. A push-in body, wherein the component push-in body is formed of a synthetic resin material into a rectangular parallelepiped as a whole, and has a protrusion having a thickness inserted between two facing pieces of the component at the center of the lower end of the base body. Since the component push-in body for automatic component mounting has the shoulder portions that are brought into contact with the upper ends of the two opposing pieces on both sides of the protrusion, the pushing force in the correct direction is applied to the components such as the fuse holder. The components can be accurately mounted on the printed circuit board, and defective mounting of the components can be eliminated, which is a great effect.

[Brief description of the drawings]

FIG. 1 is a perspective view of a component pushing body for an automatic component mounting machine according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing an outline of the same component pushing body and a head and anvil unit related to the pushing body.

FIG. 3 is a sectional view showing a pushed state of the component pushing body.

FIG. 4 is a sectional view showing a pushed state of a conventional component pushing body.

FIG. 5 is a perspective view of a component pushing body for a conventional automatic component mounter.

FIG. 6 (a) is an explanatory view of a defective operation state of the component pushing body, and FIG. 6 (b) is an explanatory view of a defective operation state of the component pushing body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Push-in body 2 Base body 3 Projection part 4 Shoulder part 5 Fuse holder (component) 6 Clamping piece (opposing piece) 7 Head 8 Functional member 9 Recessed portion 10 Lead terminal 11 Printed board 12 Terminal insertion hole 13 Anvil unit 14 Guide member 15 Recessed portion

Claims (1)

[Claims] 1. A component pusher for mounting a component having at least two facing pieces by an automatic component mounter into a terminal insertion hole of a printed circuit board to mount the component on the printed circuit board. The component pushing body is formed of a synthetic resin material into a rectangular parallelepiped as a whole, and has a protrusion having a thickness to be inserted between two facing pieces of the component at the center of the lower end of the base body. A component pusher for an automatic component mounter, which has shoulders on both sides for abutting the upper ends of the two facing pieces.