JP7398652B2 - Component mounting device and method for manufacturing component mounting board using the same - Google Patents

Description

The present invention relates to a component mounting apparatus and a method of manufacturing a component mounting board using the same.

Conventionally, components such as radial components and axial components are mounted on a board by a component mounting device (see, for example, Patent Document 1). Components are mounted on a board to create a component mounting board.

Japanese Patent Application Publication No. 8-51300

In a component mounting apparatus, when an insertion error occurs in which a component is not inserted into a board normally, the operation of the component mounting apparatus is stopped. The operator manually performs restoration work such as moving the remaining parts to appropriate positions and removing the parts. Since the restoration work is performed manually, it may take a considerable amount of time to restart operation, resulting in a problem that the operating rate of the component mounting apparatus decreases.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a component mounting apparatus and a method of manufacturing a component mounting board using the same, which can improve the operating rate, in order to solve the above-mentioned problems.

In order to achieve the above object, the component mounting apparatus of the present invention includes a plurality of pallets each capable of holding a component, a component receiving position for receiving components by rotating the plurality of pallets in an endless manner in a state in which they are lined up; A pallet drive unit that moves each pallet in the order of a parts delivery position where parts are delivered and a parts detection position where the presence or absence of parts is detected, and a pallet drive unit that receives parts from the pallet at the parts delivery position and mounts the received parts on a board. a mounting unit that detects a component on the pallet at the component detection position, a component detection sensor that detects the presence or absence of a component on the pallet at the component detection position, and a control section, wherein the control section is configured to detect a component on the pallet by the component detection sensor. In this case, the pallet drive unit is controlled so that the pallet on which the component has been detected is moved from the component detection position to a predetermined position and then stopped.

Further, in the method for manufacturing a component mounting board of the present invention, a plurality of pallets each capable of holding components are rotated endlessly in a state in which they are lined up by a pallet drive unit, and a component receiving position for receiving components is reached, and a component receiving position is transferred to a component receiving position. a step of moving each pallet in the order of a component delivery position and a component detection position for detecting the presence or absence of components; and a step of receiving components from the pallet at the component delivery position by a mounting unit and mounting the received components on a board. a step of detecting the presence or absence of a component on the pallet at the component detection position by a component detection sensor; and when a component on the pallet is detected by the component detection sensor, detecting the component by the pallet drive unit; moving the pallet from the component detection position to a predetermined position and stopping the pallet.

According to the present invention, the operating rate of a component mounting apparatus can be improved.

A schematic perspective view of a component mounting apparatus according to Embodiment 1 Schematic plan view of the component mounting apparatus of Embodiment 1 Schematic diagram showing the operation order of the transfer head and insertion head during normal operation in Embodiment 1 Schematic diagram showing the operation order of the transfer head and insertion head during normal operation in Embodiment 1 Schematic diagram showing the operation order of the transfer head and insertion head during normal operation in Embodiment 1 Flowchart showing an example of the operation of the component mounting apparatus regarding a component insertion error in the first embodiment A schematic plan view showing the movement of the pallet when operating according to the flowchart shown in Figure 4. A schematic plan view showing the movement of the pallet when operating according to the flowchart shown in Figure 4. A schematic plan view showing the movement of the pallet when operating according to the flowchart shown in Figure 4. A schematic perspective view of a component mounting apparatus according to a second embodiment Flowchart illustrating an example of the operation of the component mounting apparatus regarding a component insertion error in Embodiment 2 A schematic plan view showing the movement of the pallet when operating according to the flowchart shown in FIG. A schematic plan view showing the movement of the pallet when operating according to the flowchart shown in FIG. A schematic plan view showing the movement of the pallet when operating according to the flowchart shown in FIG. Schematic diagram showing the operation order of the transfer head when a component insertion error occurs in Embodiment 2 Schematic diagram showing the operation order of the transfer head when a component insertion error occurs in Embodiment 2 Schematic diagram showing the operation order of the transfer head when a component insertion error occurs in Embodiment 2

According to the first aspect of the present invention, there is provided a plurality of pallets each capable of holding a component, a component receiving position where the plurality of pallets are arranged in a row and endlessly rotated to receive the component, and a component delivery location where the component is delivered. a pallet drive unit that moves each pallet in the order of a component detection position that detects the position and presence or absence of components; a mounting unit that receives components from the pallet at the component delivery position and mounts the received components on a board; a component detection sensor that detects the presence or absence of a component on the pallet at a component detection position; and a control section, the control section configured to detect the component when the component detection sensor detects the component on the pallet. The present invention provides a component mounting apparatus that controls the pallet drive unit so that the pallet is moved from the component detection position to a predetermined position and then stopped.

According to a second aspect of the present invention, the component mounting unit according to the first aspect, wherein the control unit controls the pallet driving unit to return the pallet stopped at the predetermined position toward the component detection position. Provide equipment.

According to the third aspect of the present invention, the rotation direction of the pallet when it is moved from the component detection position to the predetermined position, and the rotation of the pallet when it is returned from the predetermined position toward the component detection position. The component mounting apparatus according to the second aspect is provided in which the direction is the opposite direction.

According to the fourth aspect of the present invention, the housing further includes a housing that accommodates the plurality of pallets, the pallet drive unit, the mounting unit, and the component detection sensor, and the housing is configured to transfer the component from the component receiving position to the component receiving position. The component mounting apparatus according to any one of the first to third aspects, further comprising an opening/closing cover at a position facing the opening/closing cover, and the predetermined position is a position facing the opening/closing cover. .

According to a fifth aspect of the present invention, there is provided the component mounting apparatus according to any one of the first to third aspects, wherein the predetermined position is the component delivery position.

According to a sixth aspect of the present invention, there is provided the component mounting apparatus according to the fifth aspect, wherein the control section controls the mounting unit to pick up components from the pallet stopped at the component delivery position.

According to the seventh aspect of the present invention, the mounting unit further includes a disposal unit for discarding at least a part of the components held by the mounting unit, and the control section discards the components taken from the pallet to the disposal unit. There is provided a component mounting apparatus according to a sixth aspect, which controls the mounting unit as follows.

According to the eighth aspect of the present invention, the pallet drive unit rotates a plurality of pallets, each of which can hold a component, in an arranged state in an endless manner, such as a component receiving position for receiving components and a component delivery position for delivering components. , a step of moving each pallet in the order of a component detection position for detecting the presence or absence of a component, a step of receiving a component from the pallet at the component delivery position by a mounting unit, and mounting the received component on a board; a step of using a detection sensor to detect the presence or absence of a component on the pallet at the component detection position; and when a component on the pallet is detected by the component detection sensor, the pallet drive unit detects the presence or absence of a component on the pallet at the component detection position; A method of manufacturing a component mounting board is provided, which includes the step of moving a pallet from the component detection position to a predetermined position and stopping the pallet.

According to the ninth aspect of the present invention, the manufacturing of the component mounting board according to the eighth aspect further includes the step of returning the pallet stopped at the predetermined position to the component detection position by the pallet driving unit. provide a method.

According to the tenth aspect of the present invention, the rotation direction of the pallet when it is moved from the component detection position to the predetermined position, and the rotation of the pallet when it is returned from the predetermined position toward the component detection position. Provided is a method for manufacturing a component mounting board according to the ninth aspect, in which the direction is opposite to the above direction.

According to the eleventh aspect of the present invention, a housing is provided that accommodates the plurality of pallets, the pallet driving section, the mounting unit, and the component detection sensor, and the housing is provided with a housing that accommodates the parts from the component receiving position. The component mounting according to any one of the eighth to tenth aspects, wherein an opening/closing cover is provided at a position facing the opening/closing cover up to the delivery position, and the predetermined position is a position facing the opening/closing cover. A method for manufacturing a substrate is provided.

According to a twelfth aspect of the present invention, there is provided the method for manufacturing a component mounting board according to any one of the eighth to tenth aspects, wherein the predetermined position is the component delivery position.

According to a thirteenth aspect of the present invention, there is provided a method for manufacturing a component mounting board according to the twelfth aspect, further comprising the step of using the mounting unit to take components from the pallet stopped at the component delivery position.

According to the fourteenth aspect of the present invention, a disposal unit is provided for discarding at least a part of the components held by the mounting unit, and further, the mounting unit discards the components taken from the pallet. There is provided a method for manufacturing a component mounting board according to the thirteenth aspect, which includes a step of discarding the component into a unit.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Exemplary embodiments of a component mounting apparatus and a method of manufacturing a component mounting board using the same according to the present invention will be described below with reference to the accompanying drawings. The present invention is not limited to the specific configurations of the following embodiments, but includes configurations based on similar technical ideas.

(Embodiment 1)
First, a component mounting apparatus according to Embodiment 1 of the present invention will be described with reference to FIGS. 1 and 2.

FIG. 1 is a schematic perspective view of a component mounting apparatus 1 according to the first embodiment, and FIG. 2 is a schematic plan view of the component mounting apparatus 1.

A component mounting apparatus 1 shown in FIGS. 1 and 2 is an apparatus for mounting and mounting a lead-equipped component 2 having two leads on a board 3. The board 3 on which the component 2 is mounted becomes a "component mounting board".

Hereinafter, the directions perpendicular to each other in the horizontal plane will be referred to as the X direction and the Y direction, and the direction perpendicular to the horizontal plane, that is, the vertical direction, will be referred to as the Z direction.

The component mounting apparatus 1 includes a board holding table 4, a mounting unit 6, a plurality of pallets 8, a pallet driving section 10, a component supply section 12, a component detection sensor 14, and a housing 16 (FIG. 2). A control unit 18 is provided. In FIG. 1, illustration of the housing 16 is omitted, and in FIG. 2, illustration of the component 2 is omitted.

The substrate holding table 4 is a table that positions and holds the substrate 3 on its upper surface. The substrate holding table 4 of the first embodiment is movable in the XY directions, but not in the Z direction.

The mounting unit 6 is a unit that mounts the component 2 on the board 3 positioned by the board holding table 4. The mounting unit 6 of the first embodiment includes a transfer head 20 and an insertion head 22.

The transfer head 20 and the insertion head 22 are each members having a pair of opening/closing claws capable of holding the component 2. The transfer head 20 and the insertion head 22 are configured to be rotatable in rotational directions R1 and R2, respectively, and mutually move between a position shown by a dotted line and a position shown by a solid line in FIG.

The pallet 8 is a component holding section that holds the components 2. A plurality of pallets 8 are provided, and each of the pallets 8 is provided with a holding portion 9 (FIG. 1) capable of holding the lead of the component 2. One part 2 can be held on one pallet 8.

As shown in FIGS. 1 and 2, the plurality of pallets 8 are connected in a ring-shaped line, and are integrally driven to rotate in the rotation direction X1 (forward rotation direction) by the pallet drive unit 10. . A plurality of pallets 8 are conveyed in an endless manner, and each pallet 8 repeatedly passes through the same route.

The pallet drive unit 10 in the first embodiment is a plurality of pulleys provided inside the plurality of pallets 8. Since the pallet drive unit 10 is driven by a servo motor (not shown), it can be rotated in both forward and reverse rotation directions.

The component supply section 12 is a member that supplies the components 2 to the pallet 8. The component supply unit 12 is, for example, a tape feeder, and supplies electronic components such as axial components and radial components to the pallet 8 as components 2 . The parts 2 supplied from the parts supply section 12 to the pallet 8 are held by the holding section 9 of the pallet 8. In the first embodiment, an axial component is illustrated as the component 2, but other types of components such as a radial component may be used.

A plurality of component supply sections 12 are provided, and each component supply section 12 has the same type of components 2. Although FIG. 1 shows the component 2 that the component supply section 12 at the right end of the paper has, the other component supply sections 12 have the components 2 in the same way.

The component detection sensor 14 is a sensor that detects the presence or absence of the component 2 on the pallet 8 at a certain position. The component detection sensor 14 may be any type of sensor that can detect the presence or absence of the component 2, such as a light reflection type sensor.

The housing 16 shown in FIG. 2 is a member that accommodates various constituent members of the component mounting apparatus 1. The housing 16 accommodates at least the board holding table 4, the mounting unit 6, a plurality of pallets 8, the pallet driving section 10, and the component detection sensor 14. The component supply section 12 is connected to the casing 16 in such a manner that it can supply the components 2 to the pallet 8 through an opening 23 provided in the casing 16 .

The housing 16 has an opening/closing cover 24 in the same row as the part to which the component supply section 12 is connected. The opening/closing cover 24 is a cover that can open and close a part of the housing 16, and the interior of the housing 16 cannot be accessed from the outside at any position other than the opening/closing cover 24. The open/close cover 24 is normally closed when the component mounting apparatus 1 is in operation, and when the open/close cover 24 is opened, the pallet 8 inside the housing 16 can be accessed from the outside. By providing the opening/closing cover 24, it is possible to limit the location where the pallet 8 can be accessed from the outside of the housing 16.

Although not shown, a safety switch is provided for detecting that the opening/closing cover 24 is opened. When the safety switch detects that the opening/closing cover 24 is opened, the operation of the component mounting apparatus 1 is controlled to be stopped.

The control unit 18 is a member that controls various components of the component mounting apparatus 1. The control unit 18 includes, for example, a microcomputer. The control section 18 is electrically connected to at least the substrate holding table 4, the mounting unit 6, the pallet drive section 10, the component supply device 12, and the component detection sensor 14.

Here, an example of the operation of the transfer head 20 and the insertion head 22 will be explained using FIGS. 3A to 3C. 3A to 3C are schematic diagrams showing the operating order of the transfer head 20 and the insertion head 22 during normal operation.

As shown in FIG. 3A, the transfer head 20 approaches the component 2 held in the holding part 9 of the pallet 8 with the opening/closing claw open, and then closes the opening/closing claw to move the main body of the component 2. and pick up the part 2 from the pallet 8. The transfer head 20 that has received the component 2 rotates in the rotation direction R3 as shown in FIG. 3B, and rotates to a position where the insertion head 22 can receive the component 2.

The insertion head 22 of the first embodiment does not move in the XY directions, but can move up and down only in the Z direction. A slide mechanism may be provided between the transfer head 20 and the insertion head 22 to allow the component 2 held by the transfer head 20 to slide laterally toward the insertion head 22.

The insertion head 22, which has received the component 2 from the transfer head 20, rotates in the rotation direction R4 and descends in the Z1 direction, as shown in FIG. 3C. As the insertion head 22 descends, the leads of the component 2 held by the insertion head 22 are inserted into the board 3. As a result, a component mounting board in which the component 2 is mounted on the board 3 is produced.

As shown in FIG. 2, when the plurality of pallets 8 are endlessly rotated in the rotation direction Move through them in order.

The parts receiving position A1 is a position where the pallet 8 receives the parts 2 from the parts supply section 12. The component receiving position A1 in the first embodiment is a position facing a plurality of component supply sections 12, and corresponds to, for example, eight pitches of movement of the pallet 8. A pallet access position A2 located downstream of the component receiving position A1 is a position where the operator of the component mounting apparatus 1 can access the pallet 8. The pallet access position A2 in the first embodiment is a position facing the opening/closing cover 24, and corresponds to, for example, two pitches of movement of the pallet 8. A component delivery position A3 located downstream of the pallet access position A2 is a position where the component 2 is delivered from the pallet 8 to the mounting unit 6. The component delivery position A3 in the first embodiment corresponds to one pitch of movement of the pallet 8, for example. A component detection position A4 located downstream of the component delivery position A3 is a position where the component detection sensor 14 detects the presence or absence of the component 2 on the pallet 8. The component detection position A4 in the first embodiment corresponds to one pitch of movement of the pallet 8, for example.

The number of pallet pitches occupied by the positions A1, A2, A3, and A4 is not limited to the example shown in FIG. 2, and may be changed as appropriate depending on the specifications of the component mounting apparatus 1 and the board 3.

The pallet access position A2 may be provided at any position between the component receiving position A1 and the component delivery position A3 along the rotational direction X1 of the pallet 8. By arranging it between the component receiving position A1 and the component delivery position A3, the component 2 supplied from the component supply unit 12 to the pallet 8 at the component receiving position A1 is transferred to the mounting unit 6 at the component delivery position A3. can be seen and accessed by workers.

The component detection position A4 may be provided at any position between the component delivery position A3 and the component receiving position A1 along the rotational direction X1 of the pallet 8. By placing the parts between the parts delivery position A3 and the parts receiving position A1, it is possible to check whether the parts 2 transferred from the pallet 8 to the mounting unit 6 at the parts delivery position A3 remain on the pallet 8. The user can confirm the new component 2 before receiving it from the component supply section 12.

An example of the operation of the component mounting apparatus 1 having the above-described configuration will be described below. The following operations are executed by the control unit 18.

The control unit 18 first drives the pallet drive unit 10 to rotate the plurality of pallets 8 in the rotation direction X1, which is the forward rotation direction. The plurality of pallets 8 are arranged in a line and rotated endlessly, and are intermittently moved along the rotational direction X1 while providing a short stop time every time they move one pitch.

While a plurality of pallets 8 are intermittently moved, necessary parts 2 are supplied from a parts supply section 12 to the pallet 8 stopped at a parts receiving position A1. Information regarding which part supply part 12 of the plurality of parts supply parts 12 should deliver the part 2 to which pallet 8 is stored in the control part 18 based on a preset production schedule.

The control unit 18 further drives the mounting unit 6 to receive the component 2 on the pallet 8 stopped at the component delivery position A3. The specific operation is as described using FIGS. 3A to 3C. The transfer head 20 is used to receive the component 2 on the pallet 8, the transfer head 20 transfers the component 2 to the insertion head 22, and the insertion head 22 that has received the component 2 is lowered to connect the leads of the component 2 to the board. Insert into insertion hole 3. As a result, a component mounting board in which the component 2 is mounted on the board 3 is manufactured.

The control unit 18 further uses the component detection sensor 14 to detect the presence or absence of the component 2 on the pallet 8 stopped at the component detection position A4. The detection is performed individually for each pallet 8 stopped at the component detection position A4. If the component detection sensor 14 does not detect the component 2, it is assumed that the component 2 is normally transferred from the pallet 8 to the mounting unit 6 at the component transfer position A3, and the component mounting apparatus 1 continues to operate. On the other hand, when the component detection sensor 14 detects the component 2, it is assumed that the component 2 is not normally transferred from the pallet 8 to the mounting unit 6 at the component transfer position A3, and a component insertion error occurs. When a component insertion error occurs, the control unit 18 of the first embodiment performs a recovery operation for the component insertion error, which will be described below.

Specifically, when a component insertion error occurs, the control unit 18 does not immediately stop the operation of the component mounting apparatus 1, but automatically sends the pallet 8 on which the component 2 is detected to a predetermined position. Control as follows. An operator can check the parts 2 on the pallet 8 that have stopped at a predetermined position and perform restoration work such as removing the parts 2. Compared to the case where the feed amount of the pallet 8 is manually determined when a component insertion error occurs, the time required for recovery work can be shortened, and the operating rate of the component mounting apparatus 1 can be improved. The specific operation will be explained using FIG. 4 and FIGS. 5A to 5C.

FIG. 4 is a flowchart showing an example of the operation of the component mounting apparatus 1 regarding a component insertion error. 5A to 5C are schematic plan views showing the movement of the pallet 8 when operating according to the flowchart shown in FIG. 4.

As shown in FIG. 4, the control unit 18 uses the component detection sensor 14 to detect the component 2 of the pallet 8 stopped at the component detection position A4 (S1).

Based on the detection result in step S1, the control unit 18 determines whether the component 2 is present on the pallet 8 stopped at the component detection position A4 (S2).

If it is determined that there is no part 2 (NO in S2), the control unit 18 feeds the pallet 8 by one pitch, supplies the part 2, and inserts the part 2 (S3). Specifically, the pallet drive unit 10 is used to feed the pallet 8 one pitch in the rotational direction X1, the component supply unit 12 is used to supply the component 2 to the pallet 8 at the component receiving position A1, and the mounting unit 6 is used to The component 2 is mounted on the board 3.

After executing step S3, the control unit 18 determines whether insertion of all parts has been completed (S4). Specifically, the control unit 18 accumulates information on the components 2 inserted into the board 3 by executing step S3, and also stores information regarding the accumulated information and the number and type of components 2 to be mounted that are stored in advance. Based on this information, it is determined whether or not all parts have been inserted.

If it is determined that all the components have been inserted (YES in S4), the operation of the component mounting apparatus 1 is ended. On the other hand, if it is determined that the insertion of all parts is not completed (NO in S4), the control unit 18 executes step S1 again.

If it is determined that the component 2 is present on the pallet 8 based on the detection result in step S1 (YES in S2), a component insertion error occurs, and the control unit 18 executes a series of steps S5 to S8.

The control unit 18 moves the pallet 8 on which the component 2 has been detected from the component detection position A4 to the pallet access position A2 (S5). Specifically, as shown in FIG. 5A, the pallet drive unit 10 is driven to rotate the plurality of pallets 8 in the rotation direction X1, which is the forward rotation direction. The feed amount of the pallet 8 in step S5 is stored in advance in the control unit 18 as the number of pallet pitches from the component detection position A4 to the pallet access position A2. The pallet 8A (indicated by hatching in FIG. 5A; "remaining parts pallet") that has been stopped at the component detection position A4 is moved to the pallet access position A2 and stopped, as shown in FIG. 5B.

The control unit 18 stops production and gives notification (S6). Specifically, the operation of the component mounting apparatus 1 is stopped, and the operator is notified of the component insertion error by a sound such as a buzzer or by displaying an error screen.

By moving the pallet 8A on which the part 2 has been detected to the pallet access position A2 and stopping it, the operator can visually check the pallet 8A and check the part 2 by opening the opening/closing cover 24. You can take measures such as removing it. In this way, by automatically sending the pallet 8A on which the component 2 has been detected to the pallet access position A2, which is a predetermined position, compared to the case where the operator manually determines the number of feeding pitches of the pallet 8, The time required for recovery work from component insertion errors can be reduced. Thereby, the operating rate of the component mounting apparatus 1 can be improved.

In the example shown in FIG. 5B, the pallet 8A is stopped at a position on the upstream side in the rotational direction X1 among the pallet access positions A2 for two pitches, but it may be stopped at a position on the downstream side.

The control unit 18 restarts production (S7). Specifically, a worker who has completed the restoration work inputs via an interface (not shown) connected to the control unit 18, and in response to the input, the control unit 18 changes the component mounting apparatus 1 to an operating state. to be restored.

The control unit 18 moves the pallet 8A from the pallet access position A2 to the component detection position A4 (S8). Specifically, as shown in FIG. 5B, the pallet drive unit 10 is driven to rotate the plurality of pallets 8 in a rotation direction X2 (reverse rotation direction) opposite to the rotation direction X1. The amount of feed of the pallet 8 (reverse rotation) in step S8 is set to be the same as the amount of feed of the pallet 8 (forward rotation) in step S5. The pallet 8A, which had been stopped at the pallet access position A2, is returned to the component detection position A4 and stopped, as shown in FIG. 5C.

By returning the pallet 8A from which the component 2 has been removed to the original component detection position A4, the state at the time of the component insertion error can be restored, and the preset production schedule can be restarted.

Further, by setting the rotation direction X2 of the pallet 8A in step S8 to be opposite to the rotation direction X1 of the pallet 8A in step S5, the return time of the pallet 8A can be shortened.

After executing step S8, the control unit 18 executes step S1 again.

As described above, according to the component mounting apparatus 1 and the method of manufacturing a component mounting board using the same according to the first embodiment, when the component detection sensor 14 detects the component 2 on the pallet 8A, the control unit 18 performs the following operations. The pallet drive unit 10 is controlled so that the pallet 8A on which the component 2 is detected is moved from the component detection position A4 to the pallet access position A2, which is a predetermined position, and then stopped.

According to such a configuration and method, by moving the pallet 8A to a predetermined position and stopping it, a worker can visually check the part 2 and remove the part 2, etc., and prevent part insertion errors. It can be dealt with promptly. Compared to the case where the pallet 8 is sent manually, the time required to recover from a component insertion error can be shortened, and the operating rate of the component mounting apparatus 1 can be improved.

Further, according to the component mounting apparatus 1 and the method of manufacturing a component mounting board using the same according to the present embodiment, the control unit 18 moves the pallet 8A stopped at the pallet access position A2, which is a predetermined position, to the component detection position A4. The pallet drive unit 10 is controlled to direct and return the pallet.

According to such a configuration and method, by returning the pallet 8A toward the component detection position A4, it is possible to restart production from the original state at the time of the component insertion error, and continue the production schedule that has been set in advance. can do.

Further, according to the component mounting apparatus 1 of the present embodiment and the method of manufacturing a component mounting board using the same, the rotation direction X1 of the pallet 8 when moving from the component detection position A4 to the pallet access position A2, and the pallet The rotation direction X2 of the pallet 8 when it is returned from the access position A2 toward the component detection position A4 is the opposite direction.

According to such a configuration and method, by rotating the pallet 8 in the reverse direction, the time required for returning the pallet 8 can be shortened.

Further, according to the component mounting apparatus 1 of the present embodiment and the method of manufacturing a component mounting board using the same, the housing 16 is further provided, and the housing 16 includes the mounting unit 6, the plurality of pallets 8, and the pallet drive unit. 10 and a component detection sensor 14. The housing 16 is provided with an open/close cover 24 at a position facing from the parts receiving position A1 to the parts delivery position A3, and a predetermined position at which the pallet 8A is stopped is a pallet access position A2 facing the open/close cover 24.

According to such a configuration and method, by providing the opening/closing cover 24, it is possible to limit the location where the operator can access the inside of the component mounting apparatus 1, and it is possible to improve safety. Further, by feeding the pallet 8A to a position facing the openable cover 24, when the operator opens the openable cover 24, the parts 2 on the pallet 8A can be visually confirmed.

(Embodiment 2)
A component mounting apparatus according to a second embodiment of the present invention and a method of manufacturing a component mounting board using the same will be described. Note that in the second embodiment, differences from the first embodiment will be mainly explained, and descriptions that overlap with the first embodiment will be omitted.

The second embodiment differs from the first embodiment in that a discard unit for discarding the component 2 is provided and that the component 2 is discarded to the discard unit when a component insertion error occurs.

FIG. 6 is a schematic perspective view of the component mounting apparatus 100 according to the second embodiment.

As shown in FIG. 6, the component mounting apparatus 100 further includes a disposal unit 102 in addition to the same components as in the first embodiment. The disposal unit 102 is a unit for discarding the component 2 held by the transfer head 20 of the mounting unit 6.

If the component 2 is an axial component, the leads of the component 2 are cut in preparation for mounting on the board 3. Cutting the lead generates lead waste, and the disposal unit 102 is provided as a unit for discarding the lead waste. The discard unit 102 is also used to discard the components remaining on the pallet 8A when a component insertion error occurs as will be described later. That is, the disposal unit 102 is a unit for discarding "at least a part" of the axial component as the component 2.

The disposal unit 102 of the second embodiment is provided below the transfer head 20. By dropping the component 2 and a portion thereof held by the transfer head 20, it is possible to discard it to the disposal unit 102.

The disposal unit 102 may have any configuration as long as it is capable of discarding the component 2 and at least a portion thereof. The disposal unit 102 may be, for example, a box-shaped member with an open top or a suction member having a suction port connected to a suction source.

Similarly to the first embodiment, the component mounting apparatus 100 of the second embodiment having the above-described configuration does not immediately stop operation of the component mounting apparatus 100 when a component insertion error occurs, but instead of immediately stopping the operation of the component mounting apparatus 100. The detected pallet 8A is controlled to be automatically sent to a predetermined position. The predetermined position in the second embodiment is different from the pallet access position A2, which is the predetermined position in the first embodiment, and is set at the parts delivery position A3.

FIG. 7 is a flowchart illustrating an example of the operation of the component mounting apparatus 100 regarding a component insertion error. 8A to 8C are schematic plan views showing the movement of the pallet 8 when operating according to the flowchart shown in FIG. 7.

As shown in FIG. 7, the control unit 18 executes steps S1 to S4 similar to those in the first embodiment. The contents of the operations in steps S1 to S4 are the same as in the first embodiment, so the description thereof will be omitted.

If it is determined that part 2 is present on the pallet 8A based on the detection result in step S1 (YES in S2), a part insertion error occurs, and the control unit 18 executes a series of steps S10 to S12.

Specifically, the control unit 18 moves the pallet 8A from the component detection position A4 to the component delivery position A3 (S10). Specifically, as shown in FIG. 8A, the pallet drive unit 10 is driven to rotate the plurality of pallets 8 in the rotation direction X2, which is the reverse rotation direction. The feed amount of the pallet 8 in step S10 is stored in advance in the control unit 18 as the number of pitches from the component detection position A4 to the component delivery position A3. The pallet 8A that has been stopped at the component detection position A4 is moved to the component delivery position A3 and stopped, as shown in FIG. 8B.

By moving the pallet 8A to the component delivery position A3 and stopping it, the transfer head 20 of the mounting unit 6 can access the components 2 on the pallet 8A.

The control unit 18 uses the transfer head 20 to take out the component 2 from the pallet 8A, and discards the component 2 to the disposal unit 102 (S11).

An example of the operation of the transfer head 20 in step S11 will be described using FIGS. 9A to 9C. 9A to 9C are schematic diagrams showing the sequence of operations of the transfer head 20 when a component insertion error occurs.

As shown in FIG. 9A, the transfer head 20 approaches the component 2 held in the holding part 9 of the pallet 8 with the opening/closing claw open, and then closes the opening/closing claw to move the main body of the component 2. and receive part 2. The transfer head 20 that has received the component 2 rotates in the rotation direction R3 as shown in FIG. 9B. The rotated transfer head 20 opens the opening/closing claw to drop the component 2 downward without delivering the held component 2 to the insertion head 22. The parts 2 that have fallen downward are stored in the disposal unit 102. The components 2 accommodated in the disposal unit 102 are then sent to the outside of the casing 16 of the component mounting apparatus 1 and discarded.

By discarding the components 2 to the disposal unit 102 using the mounting unit 6 in this manner, the components 2 remaining on the pallet 8A can be automatically discarded. Compared to the case where the component 2 is removed manually, the time required to recover from a component insertion error can be shortened, and the operating rate of the component mounting apparatus 100 can be improved.

The control unit 18 moves the pallet 8A from the component delivery position A3 to the component detection position A4 (S12). Specifically, as shown in FIG. 8B, the pallet drive unit 10 is driven to rotate the plurality of pallets 8 in the rotation direction X1 (forward rotation direction) opposite to the rotation direction X2. The feed amount (forward rotation) of the pallet 8 in step S12 is set to be the same as the feed amount (reverse rotation) of the pallet 8 in step S10, and the pallet 8A stopped at the component delivery position A3 is shown in FIG. 8C. It returns to the component detection position A4 and stops.

As in the first embodiment, by returning the pallet 8A to the component detection position A4, production can be restarted from the original state at the time of the component insertion error, and the production schedule set in advance can be continued.

After executing step S12, the control unit 18 executes step S1 again.

As described above, in the second embodiment, when a component insertion error occurs, the pallet 8A is sent to the component delivery position A3 instead of the pallet access position A2, and the transfer head 20 is used to take out the component 2 of the pallet 8A, and the part 2 is transferred to the disposal unit 102. Discard. There is no need for the operator to manually remove the parts 2 from the pallet 8A, and the parts 2 can be disposed of simply by automatic operation of the component mounting apparatus 100. As a result, the operating rate of the component mounting apparatus 1 can be improved by further shortening the time required for recovery work from a component insertion error.

According to the component mounting apparatus 100 and the component mounting board manufacturing method of the second embodiment, the predetermined position to which the pallet 8A is moved and stopped when a component insertion error occurs is the component delivery position A3. According to such a configuration and method, it becomes possible to take measures such as picking up the parts 2 on the pallet 8A with the mounting unit 6.

Further, according to the component mounting apparatus 100 and the component mounting board manufacturing method of the second embodiment, the control unit 18 controls the mounting unit 6 to pick up the component 2 from the pallet 8A stopped at the component delivery position A3. According to such a configuration and method, the component 2 can be automatically taken from the pallet 8A using the mounting unit 6.

Further, according to the component mounting apparatus 100 and the method for manufacturing a component mounting board of the second embodiment, a disposal unit 102 for discarding at least a part of the component 2 held by the mounting unit 6 is further provided. The control unit 18 controls the mounting unit 6 to discard the parts 2 taken from the pallet 8A to the discard unit 102. According to such a configuration and method, the parts 2 taken from the pallet 8A can be automatically discarded.

Although the present invention has been described above using the first and second embodiments described above, the present invention is not limited to the first and second embodiments described above. For example, in the first and second embodiments, a case has been described in which the pallet 8A that has been moved to a predetermined position is returned to the component detection position A4, but the present invention is not limited to such a case. For example, the pallet 8A is returned to a position shifted by several pitches in the rotational direction X2 from the component detection position A4, and then the pallet 8A is returned to the component detection position A4 while being rotated intermittently in the rotational direction X1 according to the production schedule. You can do it like this. In other words, the pallet 8A that has been moved to the predetermined position may be moved "towards" the component detection position A4, which is the original position.

Furthermore, in the second embodiment, a case has been described in which the transfer head 20 takes out the component 2 from the pallet 8A and discards it to the disposal unit 102 in step S11, but the present invention is not limited to such a case. It is assumed that the transfer head 20 may fail to acquire the component 2 depending on the posture and shape of the component 2 held on the pallet 8A. In such a case, the transfer head 20 detects that the acquisition of the component 2 has failed, and in response to this detection, moves the pallet 8A to the pallet access position A2 as in the first embodiment, and the operator The parts 2 on the pallet 8A may also be picked up manually. Alternatively, the operation of the component mounting apparatus 100 may be stopped in response to detection of a failure in component acquisition by the transfer head 20.

Although this disclosure has been fully described with reference to preferred embodiments and with reference to the accompanying drawings, various changes and modifications will become apparent to those skilled in the art. It is to be understood that such variations and modifications are included insofar as they do not depart from the scope of the disclosure as defined by the appended claims. Furthermore, changes in the combination and order of elements in each embodiment can be realized without departing from the scope and spirit of the present disclosure.

Note that by appropriately combining any of the various embodiments and modifications described above, the effects of each can be achieved.

The present invention is applicable to any component mounting device and a method of manufacturing a component mounting board using the same.

1 Component mounting device 2 Component 3 Board 4 Board holding table 6 Mounting unit 8 Pallet 8A Pallet (parts remaining pallet)
9 Holding section 10 Pallet drive section 12 Component supply section 14 Component detection sensor 16 Housing 18 Control section 20 Transfer head 22 Insertion head 23 Opening section 24 Opening/closing cover 100 Component mounting device 102 Disposal unit A1 Component receiving position A2 Pallet access position A3 Parts delivery position A4 Parts detection position R1, R2, R3, R4 Rotation direction X1 Rotation direction (forward rotation direction)
X2 Rotation direction (reverse rotation direction)

Claims (14)

multiple pallets each capable of holding parts;
A pallet drive that rotates the plurality of pallets lined up in an endless manner and moves each pallet in the order of a parts receiving position for receiving parts, a parts delivery position for delivering parts, and a parts detection position for detecting the presence or absence of parts. Department and
a mounting unit that receives components from the pallet at the component delivery position and mounts the received components on a board;
a parts detection sensor that detects the presence or absence of parts on the pallet at the parts detection position;
comprising a control unit;
The control unit controls the pallet so that, when a component on the pallet is detected by the component detection sensor, the pallet on which the component is detected is moved from the component detection position to a predetermined position and stopped. A component mounting device that controls the drive unit. The component mounting apparatus according to claim 1, wherein the control unit controls the pallet drive unit to return the pallet stopped at the predetermined position toward the component detection position. A rotation direction of the pallet when it is moved from the component detection position to the predetermined position is opposite to a rotation direction of the pallet when it is returned from the predetermined position toward the component detection position. 2. The component mounting apparatus according to 2. Further comprising a casing that accommodates the plurality of pallets, the pallet drive unit, the mounting unit, and the component detection sensor,
The casing includes an opening/closing cover at a position facing between the component receiving position and the component delivery position,
4. The component mounting apparatus according to claim 1, wherein the predetermined position is a position facing the opening/closing cover. The component mounting apparatus according to any one of claims 1 to 3, wherein the predetermined position is the component delivery position. 6. The component mounting apparatus according to claim 5, wherein the control unit controls the mounting unit to pick up the components from the pallet stopped at the component delivery position. further comprising a disposal unit for discarding at least a part of the components held by the mounting unit,
7. The component mounting apparatus according to claim 6, wherein the control unit controls the mounting unit to discard the components taken from the pallet to the disposal unit. A pallet drive unit rotates multiple pallets, each of which can hold a component, lined up in an endless manner to create a component receiving position for receiving components, a component delivery location for delivering components, and a component detection position for detecting the presence or absence of components. a step of moving each pallet in the order of
a step of receiving components from the pallet at the component delivery position by a mounting unit and mounting the received components on a board;
detecting the presence or absence of a component on the pallet at the component detection position using a component detection sensor;
When a component on the pallet is detected by the component detection sensor, the pallet drive unit moves the pallet on which the component is detected from the component detection position to a predetermined position and stops it;
A method for manufacturing a component mounting board, including: moreover,
9. The method of manufacturing a component mounting board according to claim 8, further comprising the step of causing the pallet drive unit to return the pallet stopped at the predetermined position toward the component detection position. A rotation direction of the pallet when it is moved from the component detection position to the predetermined position is opposite to a rotation direction of the pallet when it is returned from the predetermined position toward the component detection position. 9. The method for manufacturing a component mounting board according to 9. A casing is provided that accommodates the plurality of pallets, the pallet drive unit, the mounting unit, and the component detection sensor,
The housing is provided with an opening/closing cover at a position facing between the component receiving position and the component delivery position,
11. The method for manufacturing a component mounting board according to claim 8, wherein the predetermined position is a position facing the opening/closing cover. 11. The method for manufacturing a component mounting board according to claim 8, wherein the predetermined position is the component delivery position. moreover,
13. The method for manufacturing a component mounting board according to claim 12, further comprising the step of using the mounting unit to pick up components from the pallet stopped at the component delivery position. A disposal unit for discarding at least a part of the components held by the mounting unit is provided,
moreover,
14. The method for manufacturing a component mounting board according to claim 13, further comprising the step of discarding the components taken from the pallet by the mounting unit to the disposal unit.

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