JPH01179498A - Indicating system for insertion of electric component - Google Patents

Abstract

PURPOSE:To prevent an indicating beam from being shielded so as to indicate a position of a component on a substrate accurately by a method wherein a component inserting position is indicated by an indicating head provided above a circuit substrate which electric components are to be inserted into, where the indicating head is driven in X-Y directions and projects an indicating beam downward to the substrate. CONSTITUTION:When optional indicating switches are successively operated, an indicating head 24 of a position indicator 20 projects a beam so as to indicate an inserting position corresponding to a component to be inserted. In conjunction with the indication, a component feeder 14 rotates a tray T by a specified angle preset in accordance with a component feeding procedure, whereby a component corresponding to a component inserting position on a circuit substrate K is made to front toward an operator. The operator inserts the component to the component inserting position indicated by the indicating head 24 one by one in succession. As mentioned above, components are successively mounted on the circuit substrate K, and when the mounting of electric components corresponding to all the component inserting positions is completed, a pedal switch 51 is operated to be ON, the circuit substrate K is transferred to the following step, and a new circuit substrate K is transferred to an inserting operation position.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to the technical field of attaching electrical components to a circuit board such as a printed circuit board by soldering or the like, and in particular, it relates to the technical field of attaching electrical components to a circuit board such as a printed circuit board by soldering or the like. The present invention relates to an electrical component insertion system used when inserting a large number of electrical components into each position.

[Prior Art] Electrical component insertion instructing devices have conventionally been used as auxiliary tools or jigs for inserting electrical components into circuit boards. This insertion instruction device has, for example, a movable instruction head that emits a beam-shaped light beam, and sequentially moves the irradiation angle of the instruction head to a preset position according to the procedure for inserting the electrical component. After positioning, an indicating head sequentially irradiates a spot-like light beam onto each position on the circuit board where an electric component is to be inserted, thereby indicating the position. Also.

Some devices have a movable pointing head that emits a beam of light from below the circuit board, and the pointing head is driven in the X-Y direction to point out the position according to the procedure described above.

Further, as a means for conveying a circuit board, there is a type in which a belt conveyor is provided, and the circuit board is directly mounted on the belt conveyor and is automatically conveyed to a predetermined work position.

There are also devices in which a carriage is provided on which a circuit board is mounted, and the carriage is manually conveyed along a guide rail.

[Problems to be Solved by the Invention] However, the above-mentioned conventional electrical component insertion instruction device has several problems, such as the following. First, the electrical component insertion position indicating device, which is configured to emit a beam of light from an indicating head placed below the circuit board, is designed to position the electrical component insertion position on the circuit board, such as the recent printed circuit boards that are becoming more multi-layered and chip-based. There is a problem in that the transmittance of the light beam that directs this decreases. In addition, with a device that directs the component insertion position by emitting a beam of light to each location on the board by changing the irradiation angle from an instruction head placed above the circuit board, it is difficult to remove large parts on the board. There is a problem in that the presence of such objects may block the device instruction light beam formed from the instruction head, creating a shadow.

In a system in which the circuit board is directly mounted on a belt conveyor as a means for transporting the circuit board, there is a problem in that the width of the conveyor must be changed every time the circuit board size changes. It was difficult to remove the circuit board from the belt conveyor after the work was completed and move it to the next stage of work. Further, in the case where the carriage is manually fed along a guide rail, it is difficult to realize efficient assembly work using a belt conveyor.

The present invention has been made in view of the above-mentioned points, and it is possible to accurately and sequentially indicate each position on a circuit board into which an electric component is to be inserted, and also to prevent large components from being present on the circuit board. It is an object of the present invention to provide an electrical component insertion instruction system in which a beam for indicating the position is blocked by the component to prevent shadows from being formed, and the transportation and assembly work of one circuit board can be carried out smoothly. be.

[Means to solve the problem] An electrical component insertion instruction system according to the present invention.

It has a space for installing a circuit board into which electrical components are to be inserted, and an indicating head disposed above this space that is driven in an a pointing device for pointing the X-Y position of the circuit board installed in the space from above with the pointing beam by positioning the pointing head at the X-Y position, the circuit board installed in the space; The position for inserting the electrical component is indicated from above by the indicating device.

Further, the electrical component insertion instruction system according to the present invention includes:
It has a pointing head that is driven in the X-Y direction and emits a pointing beam downward, and the pointing head is positioned at a pre-programmed X-Y position, and the X-Y position is directed upward by the pointing beam. an indicating device for giving instructions, a holding position adjustable board holder capable of holding a circuit board of any size, a pallet on which the board holder is removably mounted in a predetermined relative positional relationship; The present invention is characterized by comprising: a conveying means for conveying the pallet across the indicated area by the indicating device; and a positioning means for stopping the pallet at a predetermined circuit board installation reference position corresponding to the indicated area. be.

[Operation: Place the circuit board into which the electrical components are to be inserted in the circuit board installation space. An indicating device is placed above this space. In this pointing device, the pointing beam is emitted downward and is driven in the X-Y direction, and the pointing head is positioned at a pre-programmed X-Y position. Directions are made from above the circuit board using a direction beam.

In this way, since the pointing head is provided above the circuit board and the pointing beam is emitted downward while being driven in the The light is not blocked by the parts, and unlike the method of irradiating the indicator beam from below on a single circuit board, there is no problem of the transmittance of the indicator beam decreasing even when working on a multi-layered printed circuit board, allowing accurate parts detection. This has the excellent effect of being able to indicate the insertion position.

Furthermore, according to the electrical component insertion instruction system of the present invention,
A circuit board into which an electrical component is to be inserted is held by a board holder, and the holder is mounted on a removable pallet in a predetermined relative positional relationship and set on a conveyance means. The pallet is transported by the transport means across the pointing area of the pointing device. When the pallet is transported to a predetermined substrate installation reference position on the transport path by the positioning means, the operation of the transport means is stopped. The insertion position of each component on the circuit board on this pallet is indicated by an indicating device placed above. That is, in this pointing device, the pointing beam is emitted downward and is driven in the X-Y direction. Instructions are given from above the board. When the predetermined component insertion work is completed, the pallet on which the circuit board and board holder are mounted is transported from the circuit board installation reference position to an appropriate position by the transport means. When removing a completed circuit board from the transport vehicle.

This can be easily done by removing the holder holding the substrate from the pallet. The empty pallet may be transported from the end of the conveyance means to the start end.

In this way, since the pointing head is provided above the circuit board, driven in the X-Y direction, and emits the pointing beam downward, the above-mentioned effects can be achieved. In addition, the holder holding one circuit board is mounted on a pallet, and the transport means transports this pallet, so even if the circuit board size changes, there is no need to change the width of the transport means, and after the work is completed, It is possible to remove the circuit board along with the holder from the conveying means and move it to the next work stage, and since manual feeding is not required, efficient assembly work can be realized.

[Embodiment] Hereinafter, an embodiment of the electrical component insertion instruction system according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view schematically showing an embodiment of an electrical component insertion instruction system according to the present invention. This electrical component insertion instruction system can be roughly divided into a work unit 15 including conveyors 13a and 13b for conveying a pallet 11;
The work unit 15 includes lifting mechanisms 12a and 12b attached to both ends, respectively, and a component insertion position indicator 20 disposed above the conveyor 13a at a predetermined component insertion work position.

The work unit 15 transfers the pallet 11 to the work unit 1.
a conveyor 13a for conveying the pallet 11 from one end to the other end on the upper surface of the work unit 15; and a conveyor 13a for conveying the pallet 11 from the other end to the one end on the lower surface of the work unit 15.
3b. A plurality of pallets 11 may be present on the conveyors 13a and 13b. The conveyors 13a and 13b are operated by a conveyor motor driver 53.
(See FIG. 5). A component supply device 14 is provided corresponding to the component insertion work position, and a positioning device 50 is provided for stopping the pallet 11 on which the board holder H holding the circuit board K is mounted at the component insertion work position on the conveyance path. (See Figure 5).

The positioning device 50 controls the operation of the drive device for driving the conveyors 13a and 13b attached to the two working units 15, and is illustrated in the block diagram of FIG. 5. The pedal switch 51 functions as an on switch for the conveyor motor driver 53.

The pedal switch 51 is a pedal-shaped foot switch provided at an appropriate position of one work unit 15, for example, on the lower installation surface, and when an operator steps on this pedal switch 51, the conveyor motor driver 53 is activated. and sends a motor-on signal. The conveyor motor driver 53 starts rotating the conveyor motor when a motor-on signal is applied from the pedal switch 51. The stopper switch 52 is connected to the conveyor motor driver 53.
functions as an off switch. The stopper switch 5
2 is composed of, for example, a micro switch or an optical sensor switch, and the pallet 1 is conveyed on the upper conveyor 13a.
1 detects that a predetermined circuit board installation reference position has been reached, and in response to this detection, a motor off signal is sent to the conveyor motor driver 53. The conveyor motor driver 53 stops the rotation of the conveyor motor when a motor off signal is given from the stopper switch 52. Therefore, the movement of conveyors 13a and 13b also stops. In this way, with the pallet 11 stopped at the predetermined circuit board setting reference position, the electric component insertion work is performed according to instructions from the indicator 20. After completing the necessary insertion work for one circuit board K on the work unit 15, the operator steps on the pedal switch 51 with his/her foot to turn on the conveyor motor driver 53.
Sends a motor-on signal to conveyors 13a and 1
3b to move the worked pallet 11 to the next work step. A new pallet 11 may be fed into the insertion work position from this left side.

The pallet 11 is rectangular and plate-shaped as shown in FIG. 2(a), and is used to carry a board holder H holding one circuit board K thereon. For example, as shown in FIG. 2(b), the upper surface of the pallet 11 is provided with a recess 11a or a protrusion for positioning that matches the external dimensions of the substrate holder H mounted thereon.

When the substrate holder H is mounted on the pallet 11, the substrate holder H is naturally positioned in a predetermined relative positional relationship.

As shown in FIG. 2(a), the substrate holder H connects both ends of parallel fixing members H1 and H3 with guides G1 and G2, and inserts the fixing members H1 and H3 between the fixing members H1 and H3.
A movable member H2 parallel to H3 is provided so as to be movable along guides Gl and G2. This movable member H2 is moved according to the arbitrary size of the circuit board to be held, and the circuit board K is held between one of the fixed members H1, H3 and the movable member H2. The movable member H2 can be fixed at any position using screws (not shown) or the like.

As shown in FIG. 2(b), recesses for holding the circuit board K are provided on the upper surfaces of the fixed members H1, H3 and the movable member H2. Depending on the size of the circuit board, move the movable member H2 along the guides G1 and G2. For example, as shown in FIG.
The circuit board K is held between.

The lifting mechanisms 12a and 12b are for moving the pallet 11 up and down by a drive device and a control device (not shown). The lifting mechanism 12b provided at the end of the upper conveyor 13a is for lowering the pallet 11 conveyed by the conveyor 13a to the position of the lower conveyor 13b. The lifting mechanism 12a provided at the end of the lower conveyor 13b is for raising the pallet 11 conveyed by the conveyor 13b to the position of the upper conveyor 13a.

In the component supply device 14, as shown in FIG. 3(a), a plurality of Chemispaces B each having a disk-shaped component storage tray T rotatably and removably supported on a tray support S are arranged in a multilayered manner (see FIG. 3(a)). There are 3 machines installed. As a result, each tray T also has a multilayered structure. Each case base B
can be separated from each other or integrated, and any number of case spaces B can be integrated. Tray T on the top layer
A disk-shaped tray cover TC is attached to the upper end of the column S so as to cover the tray T supported by the column S. An example of the structure of the tray T is shown in FIG. 3(b). The tray T has a hole A in the center with an inner diameter corresponding to the diameter of the support column S, and a plurality of component storage recesses PH for storing electrical components on the upper surface along the circumferential direction ( (7 in the figure) are provided. Also, tray T
has a notch N having an area approximately equal to one recess PH.
P is provided at one location. Although not particularly illustrated, the tray cover TC is also provided with a notch approximately the same size as the notch NP. Further, although not shown, a drive device is installed in each case base B, and each tray T rotates around the support column S individually by the drive device. This drive device can control the rotation of each tray T by external control signals, and may be programmed in advance according to each component supply procedure using, for example, a computer (not shown).

The electrical component supply device 14 having such a configuration is connected to the circuit board K.
In order to insert electrical components into the trays, for example, after storing the electrical components in the respective recesses PH in an appropriate order and arranging them at appropriate positions in the work unit 15, for example, the notches NP of all trays T are inserted. Align it directly below the notch NP of the cover TC and make it visible to the operator. When the insertion operation is started, the tray T to which the recess PH containing the electrical component to be inserted first belongs is rotated by a predetermined angle by a drive device in the case space B that supports the tray T. Therefore, when this recess PH is positioned directly below the notch NP, the recess PH1 is, for example, 1 from above.
The electrical component in the recess PH belonging to the tray T of the third layer faces the worker, so the worker takes it out and places it in the work unit 1.
It is inserted into the circuit board K on top of 5. When this component removal is completed, the tray T to which the recess PH containing the electrical component to be inserted second belongs is rotated by a predetermined angle by the drive device in the case space B that supported the tray T. This recess PH is located directly below the notch NP. At the same time, at least the tray T to which this recess PH belongs is the tray T to which the first recess PH belongs.
If the recess PH is located in a lower layer, the tray T to which the recess PH belongs is rotated by a predetermined angle by a drive device in the case space B that supports the tray T.
The notch NP of the tray T is positioned directly below the notch of the cover TC again. As a result, this recess PH
Since the electrical components inside are also exposed to the worker, one worker can take them out and insert them into the circuit board K. Thereafter, the recesses PH housing the electrical components to be inserted are sequentially and randomly accessed by the driving device in the same manner and faced to the worker's side, thereby making it possible to sequentially supply these electrical components to the worker.

As shown in FIG. 1, the position indicator 20 is provided so as to cover the upper part of the conveyor 13a by a support 30 attached to the work unit 15.

An example of this position pointing device 20 is shown in FIG. 4. A fixed bar-shaped X-axis guide rail 22 is attached in the X-axis direction at the center of the frame 21, and a movable Y-axis guide rail 23 intersects the X-axis guide rail 22 at right angles.
is provided. The Y-axis guide rail 23 is connected to the X-axis guide rail 2 under the control of a control device (not shown).
2 to any position in the X-axis direction.

A pointing head 24 is attached to the Y-axis guide rail 23, which can be moved to any position in the Y-axis direction under control from a control device. This instruction head 24 is
By moving the Y-axis guide rail 23 itself in the X-axis direction and moving the pointing head 24 itself along the Y-axis guide rail 23 in the Y-axis direction, it is positioned at an arbitrary X-Y position. The pointing head 24 emits a beam of light at an X-Y positioned position and rotates it on the pallet 11.

Indicates the position on the circuit board K where the electrical component should be inserted.

At this time, the movement area (work area) of the position indicating head 24 is between the X-axis guide rail 22 and the Y-axis guide rail 23.
A sufficiently wide area is guaranteed for the area of one circuit board, which is proportional to the length of . Therefore, 1 position indicating head 24
High accuracy in indicating the insertion position of components on the circuit board. As is well known, the procedure for instructing the component insertion position is preprogrammed by a computer or the like (not shown).

Next, an example of the operation of each part in this electrical component insertion position indicating system will be explained with reference to FIG. Lifting device 1
A holder H holding a circuit board K is mounted on the upper surface of the pallet 11 on the pallet 2a. When the pedal switch 51 is turned on, a motor-on signal is sent to the conveyor motor driver 53, the conveyor motor driver 53 is activated, and conveyance of the conveyors 13a and 13b is started. Palette 11
is conveyed by the conveyor 13a, and when it reaches a predetermined circuit board installation reference position, the stopper switch 52 switches to the FE
Detecting the pallet 11, a motor off signal is sent to the conveyor motor driver 53, and the conveyor 13a and 13
The movement of b stops.

In this state, known insertion instructions and insertion operations are performed. That is, when appropriate instruction switches are operated in sequence, the instruction head 24 of the 1-position indicator 20 instructs each insertion position corresponding to each component to be inserted by beam irradiation. In conjunction with this instruction, the component supply device 14 rotates the tray T by a predetermined angle according to the component supply procedure, so that the operator can place each component corresponding to the component insertion position on the circuit board. I will have them appear one after another.

The operator sequentially inserts these components one by one into the component insertion positions on the circuit board indicated by the instruction head 24. In this way, the components are sequentially attached to the circuit board K, and when the electrical components have been attached to all the component insertion positions, the pedal switch 51 is turned on to send the circuit board K to the next step and to insert a new circuit board K. Move it to the insertion work position.

As described above, the pallet 11 loaded with the holder H holding each circuit board K into which electrical components have been inserted is sequentially conveyed to the lifting mechanism 12b by the conveyor 13a. At this point, the holder H is removed from the pallet 11 and other processing begins. For example, as shown in FIG. 6, it is also possible to mount the holder H on another conveyor 40 and perform another operation.

The empty pallet 11 from which the holder H has been removed is moved to the lifting mechanism 12.
After being lowered to the position of the conveyor 13b by the conveyor 13b, it is forwarded to the lifting mechanism 12a by the conveyor 13b, and further raised to the position of the conveyor 13a by the lifting mechanism 12a. Another holder H holding another circuit board K can be mounted on the empty pallet 11 returned above the conveyor 13a.

It is also possible to provide two work locations ST1 and Sr1 in the work unit 15 as shown in FIG. 6, and install the position pointing device 20 in accordance with each work location.

For convenience, the work locations ST1 and Sr1 will be referred to as stations. When the stations STI and Sr1 are provided, it is possible to instruct the respective component insertion positions for a plurality of types of circuit boards that coexist.

Further, the work unit 15 consisting of the conveyors 13a and 13b can be provided as a single unit or multiple units in accordance with an efficient work flow, and is not limited to the number of units shown in the embodiment. .

Further, in this embodiment, a pedal switch 51 is provided as a motor-on switch in the positioning device 50, but the present invention is not limited to the pedal switch, and other appropriate switches may be used.

[Effects of the Invention] As described above, according to the electrical component insertion instruction system according to the present invention, the instruction beam is driven in the X-Y direction from above the circuit board into which the electrical component is to be inserted, and the instruction beam is emitted downward. Since the component insertion position is indicated by the head, the movable area of the instruction head is expanded, and it is possible to accurately indicate each position on one circuit board, and it is possible to avoid large components on the circuit board. This component also has an excellent effect in that the instruction beam is not blocked and shadows are not formed. Furthermore, since a board holder capable of holding multiple sizes or types of circuit boards is provided, and the board holder is mounted on a removable pallet and transported, transportation of circuit boards and work flow can be handled smoothly. can,
It has various effects such as

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the electrical component insertion instruction system according to the present invention, FIG. 2(a) is a top view showing an embodiment of the pallet and board holder in the same embodiment, and FIG. b) is a sectional view taken along line nn of the pallet and substrate holder in Fig. 2(a), Fig. 3(a) is a plan view showing an example of the component supply device in the same embodiment, Fig. 3(b) ) is a perspective view showing an embodiment of one tray T of the component supply device, FIG. 4 is a plan view showing an embodiment of the position pointing device in the same embodiment, and FIG. 5 is a positioning device in the same embodiment. FIG. 6 is a block diagram showing one embodiment. FIG. 6 is a schematic diagram for explaining the operating state of the embodiment. 11... Pallet, 12a, 12b... Lifting mechanism,
13a, 13b... Conveyor, 14... Parts supply device, 15... Work unit, 20... Position indicator,
22...X-axis guide rail, 23...Y-axis guide rail, 24...instruction head, 50...positioning device, 51...pedal switch, 52...stopper switch, 53... Conveyor motor driver, STI, S
T2...Station.

Claims (2)

[Claims] (1) A space for installing a circuit board into which electrical components are to be inserted, and an instruction head placed above this space, driven in X-Y direction, and emitting an instruction beam downward; an indicating device for indicating the X-Y position of a circuit board installed in the space from above by positioning the indicating head at a programmed X-Y position, using the indicating beam; An electrical component insertion instruction system, wherein the electrical component insertion position on a printed circuit board is indicated from above by the instruction device. (2) Has a pointing head that is driven by X-Y and emits a pointing beam downward, and has a pre-programmed X-Y
an indicating device that positions the indicating head at a position and indicates the X-Y position from above using the indicating beam; and a holding position adjustable board holder capable of holding a circuit board of any size; a pallet on which the board holder is removably mounted in a predetermined relative positional relationship; a conveying means for transporting the pallet across the instruction area by the instruction device; and a predetermined circuit board installation reference position corresponding to the instruction area. positioning means for stopping the pallet at the circuit board installation reference position, and with the pallet stopped at the circuit board installation reference position, the instruction device instructs the insertion position of the electrical component with respect to the circuit board held by the board holder on the pallet. Electrical component insertion instruction system.