JPH07120878B2 - Printed circuit board component fixing device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printed circuit board component fixing device, and more particularly, to a predetermined hole defined in a circuit of a printed circuit board being conveyed. Parts for printed circuit board that can automatically bend and fix the connecting legs of electric and electronic parts such as motors, coils, etc. inserted in the board and wait for the next soldering process Regarding the fixing device.

BACKGROUND OF THE INVENTION Conventionally, a printed circuit board has been widely used to consolidate electronic parts to reduce a mounting space as much as possible, to avoid miswiring, and also to downsize a device to be mounted as a whole. Has been done. On this printed circuit board, a hole is formed at a predetermined position of the wiring portion, and a wire-shaped or plate-shaped leg of an electric or electronic component is inserted into the hole. That is, this is to complete a circuit that is electrically connected by soldering between the legs and the circuit. In this case, soldering is generally performed by immersing the surface of the printed circuit board opposite to the surface on which the component is mounted in a bath for storing the melted solder. The purpose is to attach solder between the end of the leg that penetrates the hole of the printed board and the circuit.

However, as is well known, solder has a relatively large surface tension, so that the solder is left in a state where the component is inserted into the printed circuit board, in other words, the wire-like leg of the component is kept straight. When immersed in the bath, the legs are pressed by the surface tension of the solder, and the component is lifted up. As a result, it is often the case that the printed circuit board and the component are not completely bonded.

Therefore, it is conceivable to automatically bend the leg of the component inserted in the hole of the printed circuit board, but even if it can be used for standardized resistors, capacitors, etc. It is difficult to automatically and massively solder a relatively large object such as a connector, a motor or a coil, or an object having different leg positions. Therefore, in particular, the legs of components such as motors and coils are bent in predetermined directions with hands and fingers, and the components are previously fixed to the printed circuit board and then immersed in the solder bath. However, it is not economical to input a large amount of human power to fix these kinds of parts to a large number of printed circuit boards, and it is not expected that the production efficiency will be improved so much. Moreover, even when bending the legs of this component, insert one component into the printed circuit board, turn it over, fold it, and then invert it to insert a new component. Since it is necessary to carry out the process of turning over the substrate again, it is extremely complicated.

[Object of the Invention] The present invention has been made in order to overcome the above-mentioned inconvenience, and at least one set of claw members is arranged corresponding to the legs of the component to be bent. The component fixing device for a printed circuit board, which is capable of automatically bending the leg portion by displacing the actuator in a predetermined direction under the action of an actuator, and which can cope without being limited by the type and quantity of components. The purpose is to provide.

[Means for Achieving the Object] In order to achieve the above object, the present invention fixes the component to the printed circuit board by bending the legs of the component temporarily mounted on the printed circuit board in a predetermined direction. In the printed circuit board component fixing device, a first claw member group that is displaced in the X-axis direction in correspondence with the arrangement direction of the components temporarily mounted on the printed circuit board, is on the same plane as the X-axis, Bending means having a second claw member group that is displaced in the Y axis direction substantially orthogonal to the X axis, a first actuator that biases and deenergizes the first claw member group in the X axis direction, and A second actuator that urges and deenergizes the two-claw member group in the Y-axis direction, and when bending the leg portion of the component by the bending means, all the components temporarily mounted on the printed substrate are attached to the printed substrate. Press and fix at the same time A first slide that is formed by stacking a plurality of frame bodies, and that is slidably displaced in the X-axis direction under the action of the first actuator. A moving member and a plurality of frame bodies that are inscribed or circumscribed in the first sliding member are stacked, and are slidably displaced in the Y-axis direction under the action of the second actuator. A second sliding member,
A plurality of plates, which are stacked at a predetermined interval and are held by holding members that are respectively fixed to the first and second sliding members, and a plurality of plates that are fixed to the plurality of plates and are adjacent to each other. And a claw member protruding through the hole, corresponding to the direction in which the component is arranged on the printed circuit board,
Under the driving action of the first and second actuators, the first pawl member group and the second pawl member group are simultaneously displaced in the X-axis direction and the Y-axis direction, respectively, and the leg portion of the temporarily mounted component is moved. It is characterized by folding.

[Embodiment] Next, a preferred embodiment of a printed circuit board component fixing device according to the present invention will be described in detail below with reference to the accompanying drawings.

In FIG. 1, reference numeral 10 indicates a printed circuit board component fixing device according to the present invention. The component fixing device 10 includes a housing 12 including actuators, which will be described later, and an upper surface portion of the housing 12 upward. Rail members 16a, 16b supported on the extending columns 14a to 14d, a leg expanding mechanism 18 arranged between the rail members 16a, 16b and above the housing 12, and the rail members 16a, 16b. Chains 20a, 2 arranged inside the
It includes a drive source 22 for driving 0b. In fact, a support plate 24 extends in the horizontal direction at the upper ends of the columns 14a to 14d, and rail members 16a and 16b are mounted and fixed on the support plate 24.

Pillars 26a to 26d that extend outside the rail members 16a and 16b of the support plate 24 extend upward, and when the leg expanding mechanism 18 moves upward at its upper end portion, it is placed on the upper portion thereof. A holder unit 28 for holding the respective components of the printed circuit board described below from above is arranged. A support plate 30 is provided above the housing 12 and between the rail members 16a and 16b.
Is horizontally mounted and fixed, and the stopper 32 is mounted and fixed on the upper surface of the support plate 30. As can be easily understood from the figure, the stopper 32 is composed of an air cylinder 34 which is inclined and a positioning member 36 which is fixed to the tip of the cylinder rod of the air cylinder 34. By moving the positioning member 36 back and forth, the printed circuit board fed through the chains 20a and 20b is stopped, and after the leg bending process of the parts, the stopped state is released and the process is carried to the next process. It becomes possible.

As can be easily understood from FIG. 2, the holder unit 28 has a shape corresponding to the shape of the motor, coil, etc. arranged on the printed circuit board, and the pressing members 38a to 38d positioned at predetermined positions. including. Bolts and nuts are respectively fixed to the pressing members 38a to 38d, and the pressing members 38a to 38d can be moved up and down in the vertical direction by the screwing operation of the nuts. A plurality of substrate holders 39 are arranged near the holding members 38a to 38d.

Next, details of the leg expanding mechanism 18 will be described below.

A holding plate 40 is arranged inside the housing 12, and an air cylinder 42 and a pair of guide members 4 are sandwiched between the holding plate 40 and the air cylinder 42.
3 and 43 are provided. Lift plates 44a and 44b are stacked on the cylinder rod 42a of the air cylinder 42. Actuators 46 and 47 formed of a pair of air cylinders are arranged on the upper surface of the lift plate 44a with a predetermined space therebetween, and a cylinder rod of the actuator 46 is a plate member 48 arranged in parallel with the rail members 16a and 16b. Engage with. The plate body 48 is engaged with a sliding member 50 having a substantially rectangular shape.

On the other hand, the cylinder rod of the actuator 47 is connected to the plate body 52, and the plate body 52 is engaged with the rectangular sliding member 54 laminated on the sliding member 50. Therefore, when the actuator 46 is biased, the sliding member 50 is moved through the plate body 48, and the sliding member 54 is moved under the biasing action of the actuator 47 through the plate body 52 in the directions of arrows A and B. It can easily be appreciated that it is freely displaceable.

In this case, the sliding member 50 is fixed with the holding members 56a to 56d extending in the horizontal direction by bending the tip end thereof, while the sliding member 54 has the tip end bent in the horizontal direction. The holding members 58a to 58d included therein are fixed (see FIGS. 3 and 4).

Next, on the lift plate 44a, the sliding member 5 is further
Rectangle-shaped laminated sliding member 6 surrounding 0 and 54
0 and 62 are provided. Actuator 4 for sliding member 60
Similar to 6 and 47, the cylinder rod 64a of the actuator 64 is engaged, while the cylinder rod 66a of the actuator 66 is attached to the sliding member 62. Therefore, by biasing the actuators 64 and 66, the sliding members 60 and 62 can be displaced in the directions of arrows C and D (see FIG. 5). It should be noted that the sliding member 60 has holding members 68a to 68d extending upward and bent at the ends thereof, respectively.
On the 62, holding members 70a to 70d are arranged so that their tip portions are bent.

As can be easily seen from FIG. 2, each holding member 56
The heights of a to 56d, 58a to 58d, 68a to 68d, and 70a to 70d are sequentially different from each other. Second
As shown in the figure, in practice, the sliding members 60, 62 are fixed to the support plates 74a, 74b extending upward from the lift plate 44a, and further, the holding members 76a, 7b from the support plates 74a, 74b.
Positioning pins 78a and 78b extend upward through 6b.

Retaining members 56a-56d, 58a-58d, 68a-68d and 70
Plates 80, 82, 84 and 86 are respectively retained in a to 70d. The plate 80 is not particularly provided with holes, but as shown in FIG. 6, the plates 82, 84 and 86 respectively have a plurality of holes 82a, 82b, 84a and 84b at predetermined positions. 86a, 86b
Are formed by drilling. Of course, the number of the holes is selected according to the number of parts having the legs to be expanded.

Therefore, the claw member 88a extending upward from the hole portion 82a,
88b is arranged, in particular, through the plate 88. The plate 82 penetrates through the holes 82a and 82b, and the claw member 90
a and 90b extend upward, and at this time, the tips of the claw members 88a and 90a have the same height, and the claw members 88b and 9b
Similarly, 0b has the same height. Furthermore, the plate 84 is provided with pawl members 92a and 92b which are erected.
2b penetrates the hole portions 86a and 86b respectively and extends upward. A claw member 94a is fixed to the plate 86 so as to face the claw member 92a, and a claw member 94b is fixed so as to face the claw member 92b. Then, the claw members 92a, 94
A has the same height, and the claw members 92b and 94b also have the same height. In the figure, reference numerals 96a and 9
6b indicates a guide member for holding the chains 20a, 20b.

The component fixing device for a printed circuit board according to the present invention is basically constructed as described above. Next, its operation and effect will be described.

The printed circuit board 100 is conveyed along the rail members 16a and 16b. At that time, components 102a, 102b, 102c, 102d such as a motor and a coil are already mounted on the printed circuit board 100. Actually, when mounting it, the printed circuit board 100
The wire-shaped or plate-shaped leg portions of these components 102a to 102d are held in the hole portions of the circuit pattern (not shown) formed in the state. So the chain
20a and 20b are connected to the rail member 16 via a claw member (not shown).
Place the plate substrate 100 placed on a and 16b in the holder unit 2
Transport to the bottom of 8. When the printed circuit board 100 reaches a predetermined position, the air cylinder 34 that constitutes the stopper 32 is urged. Therefore, the positioning member 36 arranged at the tip of the cylinder rod of the air cylinder 34 projects to prevent the printed circuit board 100 from further displacement. As a result, the chains 20a, 20b that are about to be further displaced by the drive source 22.
Maintains the stopped state under the depressing action of the drive source 22. In this case, it goes without saying that the chains 20a and 20b may be driven as they are.

Then, the air cylinder 42 is energized. The urging force of the air cylinder 42 displaces the cylinder rod 42a upward through the lift plates 44a and 44b, and the lift plates 44a and 44b.
b is a positioning pin 78 supported by the support plates 74a and 74b.
The leading ends of the a and 78b are inserted into holes (not shown) formed in the terminal end of the printed circuit board 100. That is, the printed circuit board 100 is held by the positioning pins 78a and 78b. When the air cylinder 42 is further raised,
The heads of the pressing members 38a to 38d are pressed by the pressing members 38a to 38d, respectively, and the substrate pressing member 39 is engaged with the upper surface of the printed circuit board 100. In this state, the actuator 46,
47 is activated. As a result, the sliding members 50, 54 are displaced through the plates 48, 52 in the directions of arrow A or B, and eventually the claw members 88a, 90a and 88b, 90b are displaced in the directions away from each other.

By the way, in the claw members 88a, 90a, 88b, 90b, the lift plates 44a, 44b are raised and the parts 102a to 102d are pressed by the pressing members.
When pressed by 38a-38d, they are inserted between the wire-shaped or plate-shaped legs of the components 102a, 102c. Therefore, when the claw members 88a, 90a and 88b, 90b are displaced in the direction away from each other as described above, the parts 102a, 102c are naturally generated.
The leg portions of the are bent by these claw members. After all, the leg portions of the components 102a and 102c are fixed to the printed circuit board 100 under this expanding action.

The actuators 64, 66 are then energized. At this time, the claw members 92a, 94a, 92b, 94b are positioned between the leg portions of the components 102b, 102d, respectively. Therefore, the sliding members 60, 62
Under the displacing action of these, these claw members achieve the bending operation so as to expand the legs of the components 102b and 102d, respectively.

After the bending operation is achieved in this manner, the actuators 46, 47, 64, 66 return to their original positions, and as a result, the claw members 88a, 90a, 88b, 90b, 92a, 94a, 92b, 94b respectively, Return to original position. Therefore, when the air cylinder 42 is urged again to start the descending operation and reach the original position, the parts 102a to 102d are similarly separated from the pressing members 38a to 38d,
Finally, the positioning pins 78a and 78b are also removed from the positioning holes (not shown) of the printed circuit board 100. Therefore, the stopper
The positioning member 36 is lowered by urging 32, and the drive source 22 is urged again. As a result, the chains 20a and 20b carry the printed circuit board 100 to the next solder bath (not shown).

[Effects of the Invention] According to the present invention, it is possible to automatically bend the wire-shaped or plate-shaped leg portion of the electric or electronic component inserted in the printed circuit board without manual intervention as described above. is there. As a result, even if these printed circuit boards are transported to the next solder tank, it is possible to avoid the situation where the parts are lifted up by the bent leg portions due to the surface tension of the solder. That is, in the past, the operation of bending the legs of the respective parts was performed manually, whereas the present invention allows the legs of the electric and electronic parts to be automatically bent. In addition to the further improvement of the production efficiency, it was possible to finally obtain an inexpensive product.

Although the present invention has been described with reference to the preferred embodiment, the present invention is not limited to this embodiment,
For example, the claw members can be displaced in directions orthogonal to each other corresponding to the position of the component, but in some cases, various angles can be obtained depending on the position of the hole formed in the plate and the arrangement state of the actuator. It is also possible to easily fold the parts arranged in the positions, or in some cases, to twist the leg parts of the parts. Furthermore, referring to the biasing of the actuator, the directions of A, B and C.
An actuator that performs a displacement operation in the D direction can be urged and deenergized at the same time, and the legs can be expanded and closed, and various other types are possible without departing from the scope of the present invention. Of course, improvements and design changes are possible.

[Brief description of drawings]

1 is a schematic perspective view of a component fixing device for a printed circuit board according to the present invention, FIG. 2 is a vertical cross-sectional view of a leg opening / closing mechanism of the component fixing device shown in FIG. FIG. 2 is a perspective explanatory view showing an arrangement state of the actuator and the sliding member of the leg expanding mechanism shown in FIG. 2, FIGS. 4 and 5 are perspective explanatory views of the sliding member shown in FIG. 3, and FIG. FIG. 4 is a perspective view of a main part showing a positional relationship between a plate and a claw member in the leg expanding mechanism shown in FIG. 1. 10 …… Parts fixing device, 18 …… Leg expansion mechanism 28 …… Holder unit, 32 …… Stopper 36 …… Positioning member, 42 …… Air cylinder 46,47,64,66 …… Actuator 50,54… ... Sliding members 80, 82, 84, 86 ... Plates 88a, 88b, 90a, 90b, 92a, 92b ... Claw members

Claims (5)

[Claims] 1. A component fixing device for a printed circuit board, which fixes the component to the printed circuit board by bending leg parts of the component temporarily mounted to the printed circuit board in a predetermined direction, wherein the component temporarily mounted on the printed circuit board. A first claw member group that is displaced in the X-axis direction corresponding to the arrangement direction of the second claw member group, and a second claw member group that is coplanar with the X-axis and is displaced in the Y-axis direction that is substantially orthogonal to the X-axis. And a first actuator that urges and deactivates the first claw member group in the X-axis direction, and a second bending unit that has a second claw member group in the Y-axis direction. A second actuator; and a component pressing means for pressing and fixing all the components temporarily mounted on the printed circuit board onto the printed circuit board at the same time when the leg part of the component is bent by the bending means. Is multiple A body is formed by stacking and is inscribed or circumscribed with the first sliding member and a first sliding member that is slidably displaced in the X-axis direction under the action of the first actuator. A second sliding member that is formed by stacking a plurality of frames and that is slidably displaced in the Y-axis direction under the action of the second actuator for urging and deenergizing;
A plurality of plates, which are stacked at a predetermined interval and are held by holding members that are respectively fixed to the first and second sliding members, and a plurality of plates that are fixed to the plurality of plates and are adjacent to each other. And a claw member protruding through the hole, corresponding to the direction in which the component is arranged on the printed circuit board,
Under the driving action of the first and second actuators, the first pawl member group and the second pawl member group are simultaneously displaced in the X-axis direction and the Y-axis direction, respectively, and the leg portion of the temporarily mounted component is moved. A component fixing device for a printed circuit board, which is characterized by bending. 2. The device according to claim 1, wherein the component temporarily mounted on the printed circuit board includes at least one of a motor and a coil. 3. The device according to claim 1, wherein the claw member is
A component fixing device for a printed circuit board, which is formed so as to be able to enter between the leg portions of the component temporarily mounted on the printed circuit board when positioned on the printed circuit board. 4. The printed circuit board according to claim 1, further comprising positioning means for positioning the printed board at a predetermined position before the folding means is biased. Parts fixing device. 5. The apparatus according to claim 1, wherein the apparatus further comprises a conveying means for conveying the printed circuit board to the bending means, and a stopping means for stopping the printed circuit board transferred by the conveying means at a predetermined position. A component fixing device for a printed circuit board, comprising: