JPH01268199A - Component clamping device for printed board - Google Patents

Abstract

PURPOSE:To automatically bend a leg without limiting components in type and quantity and the like by providing bending means for bending the leg of a component temporarily mounted on a printed board, and in actuator for displacing any one side of the bending means. CONSTITUTION:An air cylinder 42 is energized, a cylinder rod 42a is displaced upward, and lifting plates 44a, 44b are held at a printed board 100 by positioning pins 78a, 78b supported by supporting plates 7a, 7b. Actuators 46, 47 are energized in this state. As a result, slide members 50, 54 are moved in the directions shown by the arrows through plates 48, 52, and pawl members 88a, 90a and 88b, 90b are displaced in the direction for isolating them. The legs of components 102a, 102c are bent by the pawl members, and secured to the board 100. Then, actuators 64, 66 are energized to perform bending operations of the pawl members to open the legs of components 102b, 102d during the displacement of the members 60, 62.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a component leveling device for a printed circuit board, and more particularly, to a printed circuit board that is being transported, a predetermined area defined in its circuit is A printed circuit board that automatically bends the legs for connecting electrical and electronic components such as motors and coils inserted into holes and fixes them on the board, making it possible to wait for the next soldering process. The present invention relates to a surface measuring device for parts.

[Background of the Invention] It is necessary to consolidate electronic components to reduce the installation space as much as possible, to avoid wiring errors, and to reduce the size of the device to be loaded as a whole. It has been adopted. In this printed circuit board, a hole is bored at a predetermined position in the wiring section, and a wire-like or plate-like leg of an electric or electronic component is inserted into the hole. That is, soldering is performed between the legs and the circuit to complete an electrically conductive circuit. In this case, soldering is carried out on a boat by immersing the surface of the printed circuit board opposite to the surface on which the components are mounted in a tank storing molten solder. This is for attaching solder between the circuit and the end of the leg that has passed through the hole in the printed circuit board.

However, as is well known, solder has a relatively high surface tension, which makes it difficult to keep the component inserted into the printed circuit board, or in other words, to keep the wire legs of the component straight. When immersed in a solder bath, the legs are pressed by the surface tension of the solder, causing the parts to rise, often resulting in incomplete bonding between the printed circuit board and the parts.

Therefore, it may be possible to automatically bend the legs of components inserted into the holes in the printed circuit board, but even if this is possible for standardized components such as resistors and capacitors, It is difficult to solder automatically and in large quantities on relatively large items such as connectors, motors, and coils, or items with legs in various positions. Therefore, in particular, the legs of parts such as motors and coils are bent by hand or fingers in a predetermined direction, the parts are fixed to a printed circuit board in advance, and then immersed in a solder bath. However, it is not economical to invest a large number of manpower to fix these types of parts to a large number of printed circuit boards, and it is not expected to improve production efficiency much. Moreover, even when bending the legs of this component, - parts must be inserted into the printed circuit board, turned over, bent, then turned over again, and a new part inserted. , the process of turning the substrate over again is required, which is extremely complicated.

[Object of the Invention] The present invention has been made in order to overcome the above-mentioned disadvantages, and includes disposing at least one set of claw members corresponding to the leg portions of the part to be bent. A part surface setting method for printed circuit boards that is capable of automatically bending the legs by displacing the legs in a predetermined direction under the action of an actuator, and that can be applied without being limited to the type, quantity, etc. of parts. The purpose is to provide equipment.

"Means for Achieving the Object" In order to achieve the above object, the present invention provides a plurality of bending means for bending in a predetermined direction the legs of parts such as motors and coils temporarily attached to a printed circuit board. and an actuator for displacing at least one of the bending means.

Further, in the present invention, the means for bending the legs of a component temporarily attached to a printed circuit board is comprised of a claw member, and when the printed circuit board is positioned, the claw member bends the leg of the component temporarily attached to the printed circuit board. It is characterized by being configured so that it can be accessed between the two.

Further, the present invention is characterized in that the parts temporarily attached to the printed circuit board are arranged in different directions, and the bending means is arranged so as to correspond to the direction of the parts.

Further, the present invention provides a structure in which the bending means includes a claw member that passes through holes in a plurality of laminated plates and reaches between the legs of a component protruding from a printed circuit board, and a claw member that displaces the plates in different directions. It is characterized by comprising a plurality of linear actuators.

Further, the present invention provides that the device further includes positioning means,
It is characterized in that the positioning means positions the printed circuit board at a predetermined position before the bending means is energized.

Further, the present invention provides that the device further includes a component holding means, and the component holding means is configured to press and fix the component onto the printed circuit board when the leg of the component is bent by the bending means. Features.

Furthermore, the present invention is characterized in that the apparatus further includes 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.

[Embodiments] Next, preferred embodiments of the printed circuit board component leveling apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

In FIG. 1, reference numeral 10 indicates a printed circuit board component leveling device according to the present invention, and this component fixing device 10 includes a casing 12 containing an actuator etc. to be described later, and a casing 1.
Support columns 14a to 14d extending upward from the upper surface of 2
a leg expansion mechanism 18 disposed above the housing 12 between the rail members 16a and 16b, and the rail member 16a,
It includes a drive source 22 for driving chains 20a, 20b disposed inside the chain 16b. In fact, a support plate 24 extends horizontally at the upper end of the pillars 14a to 14d.
Rail members 16a and 16b are placed and fixed on the support plate 24.

Support plates 26a to 26d are located outside the rail members 16a and 16b of the support plate 24 and further extend upward, and the leg expansion mechanism 18 is placed on the upper end thereof when the leg expansion mechanism 18 performs the upward movement. A holder unit 28 is arranged to hold each component of the printed circuit board, which will be described later, from above. Located above the housing 12, the rail member 1 [ia,
A support plate 30 is further placed and fixed in the horizontal direction between 16b, and a stopper 32 is placed and fixed on the upper surface of this support plate 30. As can be easily understood from the figure, the stopper 3
2 consists of an air cylinder 34 arranged at an angle and a positioning member 36 fixed to the tip of the cylinder rod of the air cylinder 34. By moving the positioning member 36 forward and backward, the printed circuit board fed through the chains 20a and 20b is stopped, and after passing through the step of bending the legs of the component, the stopped state is released and the board is transported to the next step. It becomes possible to do so.

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 has holding members 38a to 38d positioned at predetermined positions. including. Holding member 38
Bolts and nuts are fixed to each of a to 38d, and the respective holding members 38a to 38d can be moved forward and backward in the vertical direction by the screwing action of the nuts. Note that a plurality of substrate pressers 39 are arranged near the presser members 38a to 38d.

Next, details of the leg expansion mechanism 18 will be explained below.

A holding plate 40 is arranged inside the housing 12, and an air cylinder 42 and a pair of guide members 43a and 43b are provided on this holding plate 40 so as to sandwich the air cylinder 42 therebetween.

Lift plates 44a and 44b are stacked on the cylinder rod 42a of the air cylinder 42. On the upper surface of this lift plate 44a, actuators 46 and 47 consisting of a pair of air links are arranged at a predetermined distance apart, and the cylinder rod of the actuator 46 is connected to a plate 48 disposed parallel to the rail members 16a and 16b. engage with. Plate 48 engages a substantially rectangular sliding member 50 .

On the other hand, the cylinder rod of the actuator 47 is connected to the plate body 52.
This plate body 52 engages with a 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 48, and when the actuator 47 is biased, the sliding member 54 is moved through the plate 52 in the directions of arrows A and B. It is easy to understand that it can be freely displaced.

In this case, holding members 56a to 56d whose distal ends are bent and extend horizontally are fixed to the sliding member 50, while holding members 56a to 56d whose distal ends are bent in the horizontal direction are fixed to the sliding member 54. Holding members 58a to 58d are fixed (see FIGS. 3 and 4).

Next, on the lift plate 44a, a rectangular stacked sliding member 60.62 is further arranged so as to surround the sliding member 50.54. A cylinder rod l-' 54a of an actuator 64 similar to the actuators 46, 47 is engaged with the sliding member 60, and a cylinder rod 66a of the actuator 66 is engaged with the sliding member 62. Therefore, by energizing the actuators 64, 66, the sliding members 60, 62 can be displaced in the direction of arrow oc, D (see FIG. 5). Note that the sliding member 6
0, holding members 68a to 68d extend upward and have bent ends, and a sliding member 68a to 68d respectively extend upwardly and have bent ends.
2, holding members 70a to 70d are arranged so that their tips are bent.

As can be easily understood from FIG.
6a to 55d, 58a to 53d, 68a to 68d
and 70a to 70d are arranged such that their heights are sequentially equal to each other. As shown in FIG. 2, the sliding members 60, 62 are actually fixed to support plates 74a, 74b extending upward from the lift plate 44a, and furthermore, the slide members 60, 62 are secured to support plates 74a, 74b that extend from the support plates 74a, 74b to retaining members. Positioning pin 78 via 76a, 76b
a, 78b extend upward.

Holding parts 056a to 56d, 58a to 58d, 68a
Plates 8 are attached to 68d to 70d and 70a to 70d, respectively.
0.82.84 and 86 are retained. plate 80
As shown in FIG. 4, the plates 82, 84, 8G have a plurality of holes 82a, 82b, 84a, 84b, 86a at predetermined positions, respectively.
, 86b are formed by drilling. Of course, the number of holes is selected depending on the number of parts having legs that are to be expanded.

Therefore, the claw member 8 extending upward from this hole 82a
8a, 88b are particularly arranged so as to pass through the plate 8G. The plate 82 has holes 82a and 82b.
The claw members 9 (la, 90b extend upwardly through the
At this time, the tips of the claw members 88a and 90a are made to have the same height, and the heights of the claw members 33b and 90b are also made to be the same.

Furthermore, claw members 92a and 92b are erected on the plate 84, and the claw members 92a and 92b are connected to the hole 86a11.
116b and extend upwardly. 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 to the plate 86 so as to face the claw member 92b.

The heights of the claw members 92a and 94a are the same, and the heights of the claw members 92b and 94b are also the same. In addition, in the figure, reference numerals 96a and 96b indicate guide members for holding the chains 20a and 20b.

The printed circuit board component leveling device according to the present invention is basically constructed as described above, and its operation and effects will be explained next.

The printed circuit board 100 is conveyed along the rail members 16a and 16b. At that time, the printed circuit board 100 already includes parts 102a, 102b, such as a motor and a coil.
102c and 102d are installed. In fact, when mounting these components 102a, the holes in the circuit pattern (not shown) formed on the printed circuit board 100 are
The wire-like or plate-like legs from 102d to 102d are kept inserted.

Then, the chain 20a120b transports the plate substrate 100 placed on the rail members 16a and 16b to the lower side of the holder unit 28 via claw members (not shown). When the printed circuit board 100 reaches a predetermined position, the air cylinder 34 forming the stopper 32 is energized.

Therefore, the positioning member 36 disposed at the tip of the air cylinder 34 protrudes from the printed circuit board 1.
Displacement beyond 00 is prevented. As a result, the chain 20a1 tries to be further displaced by the drive source 22.
20b maintains a stopped state under the force of this drive source 22. In this case, it goes without saying that the chains 20a and 20b may be driven as they are.

Therefore, the air cylinder 42 is energized. This biasing of the air cylinder 42 displaces the cylinder rod 42a upward via the guide members 44a, 44b, and the lift plays 44a, 44b are supported by the positioning pins 78a, 78b supported by the support plates 74a, 741. Insert the tip into a hole (not shown) drilled 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 parts 102a to 102d are pressed by the holding members 38a to 38d, respectively, and the board holding member 39 is pressed against the printed circuit board 100.
engages the top surface of the In this state, the respective actuators 46, 47 are energized. As a result, the plate body 48.5
2, the sliding members 50, 54 are mutually displaced in the direction of the arrow, and eventually the pawl members 88a, 90a as well as 3gb, 90
b are displaced in the direction of separating from each other.

By the way, these claw members 88a, 90a, 88b.

90b is inserted between the wire-like or plate-like legs of the parts 102a and 102c when the lift plates 44a and 44b are raised and the parts groups 2a to 102d are pressed against the holding members 38a to 38d. Therefore, the claw members 83a, 90a move in the direction of separating from each other as described above.
Also, if 88b and 90b are displaced, naturally this part 1
The legs of 02a and 102C are bent by these claw members. As a result, the legs of parts 102a and 102C are fixed to printed circuit board 100 under this expanding action.

Actuators 64,66 are then energized.

At this time, the claw parts tJ'92a, 94a, 92b, 9
4b are positioned between the respective legs of parts 102b, 102[], respectively. Therefore, under the action of the displacement of the sliding members 60, 62, these pawl members respectively displace parts 102b, 10.
Accomplish a folding action to spread out the 2cl legs.

After the bending action has been achieved in this way, the actuators 46, 47, 64, 66 return to their original positions, resulting in the pawl members 88a, 90a, 88J 90b.

92a, 94a, 92b, and 94b return to the positions shown in FIG. 4, respectively. Then, when the air cylinder 42 is energized again and starts the downward movement and reaches the original position, part 1
02a to 102d are similarly detached from the holding members 38a to 38d, and finally the positioning pins 78a and 78b are removed.
is removed from the positioning hole (not shown) of the printed circuit board 100. Then, the stopper 32 is energized, the positioning member 36 performs a downward movement, and the drive source 22 is energized again. As a result, the chains 20a and 20b transport the printed circuit board 100 to the next solder bath (not shown). [Effects of the Invention] According to the present invention, as described above, it is possible to automatically bend the wire-shaped or plate-shaped legs of electrical or electronic components inserted into a printed circuit board without human intervention. It is. As a result, even if these printed circuit boards are transported to the next solder bath, it is possible to avoid a situation where the components are lifted up by the already bent legs due to the surface tension of the solder. In other words, whereas in the past the legs of each component had to be bent manually, the present invention allows the legs of electrical and electronic components to be automatically bent. The result was a further improvement in production efficiency and, ultimately, the ability to obtain inexpensive products.

Although the present invention has been described above with reference to preferred embodiments, the present invention is not limited to these embodiments.
For example, the pawl members can be displaced in mutually orthogonal directions depending on the position of the part, but in some cases, in particular depending on the position of the holes drilled in the plate and the arrangement of the actuators. Components placed at various angles can be easily bent or, in some cases, the legs of the component can be twisted. Direction, C
- The actuator that performs the displacement operation in the D direction can be energized and energized at the same time, and the legs can be bent for both expansion and closure, etc., without departing from the gist of the present invention. Of course, improvements and changes in design are possible.

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view of a printed circuit board component leveling device according to the present invention, FIG. 2 is a partially omitted longitudinal cross-sectional view of the leg opening/closing mechanism of the component fixing device shown in FIG. 1, and FIG. FIG. 2 is a perspective view showing the arrangement of the actuator and sliding member of the leg expansion mechanism; FIGS. 4 and 5 are perspective views of the sliding member shown in FIG. 3; FIG. FIG. 2 is a perspective explanatory view of essential parts showing the arrangement relationship between a plate and a claw member in the leg expansion mechanism shown in FIG. 1; 10...Component fixing device 18.Leg expansion mechanism 2
8... Holter Uniso) 32... Stopper 36
...Positioning member 42...Air cylinder 4
6.47.64.66...actuator 50.54
...Sliding member

Claims (7)

[Claims] (1) A plurality of bending means for bending in a predetermined direction the legs of parts such as motors and coils temporarily attached to a printed circuit board, and an actuator for displacing at least one of the bending means. A printed circuit board component fixing device characterized by: (2) In the device according to claim 1, the means for bending the legs of a component or the like temporarily attached to a printed circuit board comprises a claw member, and the claw member is temporarily attached to the printed circuit board when the printed circuit board is positioned. 1. A component fixing device for a printed circuit board, characterized in that the device is configured such that it can be inserted between the legs of a component. (3) The apparatus according to claim 2, wherein the parts temporarily attached to the printed circuit board are arranged in mutually different directions, and the bending means is arranged so as to correspond to the direction of the parts. parts fixing device. (4) In the apparatus according to claim 3, the bending means includes a claw member that penetrates through holes in a plurality of laminated plates and reaches between the legs of a component protruding from a printed circuit board, and A printed circuit board component fixing device characterized by comprising a plurality of linear actuators for displacing in the direction. (5) The apparatus according to claim 1, further comprising positioning means, and the positioning means is configured to position the printed circuit board at a predetermined position before the bending means is energized. Board component surface locating device. (6) The device according to claim 1, further comprising a component holding means, which presses and fixes the component onto the printed circuit board when the leg of the component is bent by the bending device. A printed circuit board component fixing device characterized by being configured as follows. (7) The apparatus according to claim 1, further comprising 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 printed circuit board component fixing device characterized by: