JP2002280795A - Mounting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve mounting quality. SOLUTION: The mounting machine has a substrate retention section 17 for retaining a substrate 18 where a component 3 is mounted, a mounting section 16 for mounting the component 3 onto the substrate 18, a plurality of carrier bodies 8 for taking out and retaining the component 3 that is supplied at a supply section 1 and at the same time for conveying and transferring the component 3 to the mounting section 16, a carrier section for arranging the plurality of carrier bodies 8 in a ring for moving, a control section 31 for controlling the operation of each section, and a storage section 32 for storing the data on the propriety of use in each carrier body 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a circuit board (hereinafter, referred to as a circuit board).
The present invention relates to a mounting machine for mounting electronic components (hereinafter, referred to as components) on a substrate.

[0002]

2. Description of the Related Art In a conventional mounting machine, a component supplied by a supply unit is taken out and held by a plurality of annularly arranged transporters, and is also transferred to the mounting unit for delivery. It was mounted on the board.

[0003]

When such a conventional mounting machine is operated for a long period of time, some of the plurality of carriers may fail. If the defective transporter, that is, the transporter that is originally unusable, is used for component transport as it is, the component cannot be removed from the supply unit, cannot be removed in the correct holding position, or if the component is dropped during component transport. Was gone. Also, when transferring the component to the mounting unit, the component may not be able to be delivered or may not be delivered in a correct posture.

[0004] As a result, there has been a case where the mounting operation cannot be performed correctly and the mounting quality is degraded.

Therefore, an object of the present invention is to improve the mounting quality.

[0006]

In order to solve this problem, the present invention provides a supply unit for supplying a component, a board holding unit for holding a board on which the component is mounted, and mounting the component on a board. And a plurality of carriers that take out and hold the components supplied by the supply unit and transport and transfer the components to the mounting unit, and a transport that arranges and moves the plurality of carriers in a series of rings. Unit, a control unit that controls the operation of each unit, and a storage unit that stores the usability data of each carrier, and only a carrier that can be used based on the usability data of each carrier. The mounting machine is designed to carry components using the above-mentioned method, and the quality of the mounting can be improved by reliably transferring the components to the mounting unit and performing the mounting operation using only the usable carrier.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the first aspect of the present invention, there is provided a supply section for supplying a component, a board holding section for holding a board on which the component is mounted, and a mounting section for mounting the component on a board. And a plurality of carriers that take out and hold the components supplied by the supply unit and transport and transfer the components to the mounting unit, and a transport unit that arranges and moves the plurality of carriers in a series of rings. A control unit that controls the operation of each of the units, and a storage unit that stores the availability data of each of the transporters, and uses only the transporters that can be used based on the availability data of each of the transporters. This is a mounting machine that transports components by using a transporter that can be used, and the quality of mounting can be improved by reliably transferring components to the mounting unit and performing the mounting operation.

According to a second aspect of the present invention, there is provided the mounting machine according to the first aspect, further comprising a detecting unit for detecting an operation failure of the transporting body, wherein it is easily determined whether each transporting body can be used. can do.

According to a third aspect of the present invention, there is provided the mounting machine according to the second aspect, further comprising a take-out detecting section for detecting a take-out operation failure of the carrier when taking out the component from the supply section. It is possible to easily detect a component take-out operation failure of each transport body and set the usability data thereof.

The invention according to claim 4 of the present invention is characterized in that a holding detection unit for detecting a holding operation failure of the carrier when the component taken out of the supply unit is carried to the mounting unit is provided. In this mounting machine, it is possible to easily detect the component holding operation failure of each carrier and set the usability data.

According to a fifth aspect of the present invention, there is provided the mounting machine according to the second aspect, further comprising a transfer detecting unit for detecting a transfer operation failure of the carrier when transferring the component to the mounting unit. In addition, it is possible to easily detect a component delivery operation failure of each transport body and set the usability data.

According to a sixth aspect of the present invention, the number of operation failures of each carrier is stored in a storage unit, and when the number of operation failures is equal to or greater than a predetermined number set in a storage unit in advance, 6. The mounting machine according to claim 3, wherein the unusable data relating to the carrier is stored in a storage unit, and the reliability of the usability data of each carrier stored in the storage unit. Can be improved.

According to a seventh aspect of the present invention, there is provided an input unit for inputting availability data of each carrier.
In the mounting machine described in (1), it is possible to accurately set the usability data after confirming the actual mechanism and the defective state of the operation of each carrier.

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing a mounting machine according to an embodiment of the present invention, FIG. 2 is a perspective view showing a main part of a supply unit, and FIG. 3 is a perspective view showing a holding detection unit. Yes,
FIG. 4 is a perspective view showing a main part of the mounting portion.

As shown in FIG. 1, a plurality of supply units 2 as shown in FIG. 2 are arranged adjacent to each other in the supply unit 1, and each supply unit 2 supplies components 3 sequentially. The component 3 has a plurality of leads 5 on one side of the element 4 as shown in FIG. 2, and the lower end of the lead 5 is held in a long mounting tape 6 in a package. It is provided by.

As shown in FIG. 2, the component 3 is cut at the mount tape 6 by the cutting tool 7 of the supply unit 2 and separated as individual pieces.

This cutting operation is performed while the lead wire 5 of the component 3 is held by the two holding claws 9 of the carrier 8 shown in FIG. In this way, the carrier 8 takes out the component 3 from the supply unit 2 of the supply unit 1 and holds it.

As shown in FIG. 1, the transport body 8 includes a pulley 1
A plurality of belts 13 are stretched around the belts 0, 11, and 12 and are arranged in a series of annular shapes on the outer peripheral side, and are normally moved in the direction B shown in FIG. It has become. That is, the plurality of transport bodies 8, the pulleys 10, 11, 12, the belt 13, the motor 14,
The transport unit is constituted by.

As shown in FIG. 1, each of the transporting bodies 8 feeds the lead wires 5 of the parts 3 sent out in the direction A shown in FIG. 1 is held by the two holding claws 9, held and taken out, and is intermittently moved in the direction B shown in FIG. 1 by the driving of the motor 14 to be conveyed to the transfer unit 15, and the components held by the transfer unit 15 3
Hand over.

The transfer section 15 transfers the component 3 to the mounting section 16, and the mounting section 16 mounts the component 3 on the board 18 held by the board holding section 17.

The board 18 has an insertion hole 19 into which the lead wire 5 of the component 3 is inserted, and a board holding portion 17 for holding the board 18 is moved in the XY directions shown in FIG. It is supposed to.

Below the board holding portion 17, there is arranged a receiving table 22 which moves up and down so as to hold the lead wire 5 of the component 3 during the mounting operation of the component.

The operation of the receiving table 22 is driven by a cam 23, the operation of the mounting section 16 is driven by a cam 24, and the operation of the transfer section 15 is driven by a cam 25. These cams 23, 24, 25 are connected to a motor 30 via a transmission shaft 26, pulleys 27, 28, a belt 29, and the like, and a series of operations are performed in synchronization with the rotation of the motor 30. ing.

The operations of the mounting section 16, the transfer section 15, the motor 14 for moving the carrier 8, the substrate holding section 17, and the supply section 1 are controlled by the control section 31 shown in FIG. I have.

The control unit 31 is connected to a storage unit 32. The storage unit 32 stores a program for mounting work and various data such as position coordinate data on the board 18 on which the component 3 is mounted. It is supposed to.

If this equipment is operated for a long time, the mechanism of the transporting body 8 may be damaged or abraded, resulting in failure.

In this case, data indicating whether each carrier 8 is usable or unusable is stored in the storage unit 32 as useability data, and the usable carrier 8 is used by the control unit 31. By using only the component 3, the component 3 is taken out, held, and delivered and the component is conveyed.

In order to judge whether or not each transport body 8 can be used,
1 and 2, a holding detection unit 34 shown in FIGS. 1 and 3, and a delivery detection unit 35 shown in FIGS. 1 and 4.

Each of these detectors detects a malfunction of each carrier 8 and stores unusable data of the malfunctioning carrier 8 in the storage unit 32 shown in FIG.

The take-out detector 33 shown in FIG. 2 is arranged above the supply unit 2 and uses a camera. When the component taking-out operation is performed by the carrier 8, the component taking-out operation failure is detected.
If the carrier 8 cannot take out the component 3 or cannot hold the component 3 in the correct holding posture, it is determined that the component taking-out operation is defective.

The holding detecting section 34 is arranged at an arbitrary position in the moving path of the carrier 8 from the supply section 1 to the mounting section 16 shown in FIG. 1, and as shown in FIG. It has a light projecting part and a light receiving part, and detects the presence or absence of the element 4 of the component 3 at a predetermined place. When the element 4 of the component 3 cannot be detected, it is determined that the component holding operation is defective. It has become.

The transfer detecting section 35 is provided in the mounting section 1 shown in FIG.
6 and the mounting unit 1 shown in FIG.
6 detects the presence or absence of the element 4 of the component 3 in which the lead wire 5 is held by the holding claws 36, and has a pair of light projecting portions and a light receiving portion as shown in FIG.

When the element 4 of the component 3 cannot be detected, it is determined that the component 3 has not been correctly delivered from the carrier 8, that is, it is determined that the component delivery operation is defective.

As described above, the detection units for detecting the operation failure of the transport body 8 include the take-out detection unit 33 and the holding detection unit 3.
4. A delivery detecting unit 35 is provided to easily detect a component pick-up operation failure, a component holding operation failure, and a component delivery operation failure of the transport body 8 to easily determine whether each transport body 8 can be used. .

Since the parts are conveyed by using only the usable conveyance body 8 and the mounting operation is performed,
The mounting quality of the substrate 18 can be improved.

Each carrier 8 is stored in the storage unit 32 shown in FIG.
When storing the unusable data of the transporting device 8, a predetermined value, for example, a limited value such as three times, is set in advance in the storage unit 32, and each transport unit 8 by each detection unit is stored in the storage unit 32.
The number of operation failures for each is stored, and when the number of operation failures reaches a predetermined number such as three, unusable data is stored.

With this configuration, the availability data of each carrier 8 stored in the storage unit 32 has high reliability.

In the above description, the usability data of each transport body 8 is set using each detection unit. However, the present invention is not limited to this, and an operator can input each transport body 8 from the input unit 37 shown in FIG.
May be input.

In this manner, it is possible for the operator to confirm the actual mechanism and operation failure of each transport body 8 and to set more accurate availability data.

[0041]

As described above, the present invention provides a supply unit for supplying a component, a board holding unit for holding a board on which the component is mounted, a mounting unit for mounting the component on a board, and the supply unit. A plurality of transport bodies that take out and hold the components supplied in the above and transport and transfer them to the mounting unit, a transport unit that arranges and moves the plurality of transport bodies in a series of loops, and an operation of each of the parts. A controller having a control unit for controlling and a storage unit for storing the availability data of each of the transport bodies, and performing component transport using only the transport bodies that can be used based on the availability data of each of the transport bodies. Mounting machine,
The mounting quality can be improved by reliably transferring the component to the mounting unit and performing the mounting operation using only the usable carrier.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a mounting machine according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a main part of a supply unit of the mounting machine.

FIG. 3 is a perspective view showing a holding detection unit of the mounting machine.

FIG. 4 is a perspective view showing a main part of a mounting unit of the mounting machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Supply part 2 Supply unit 3 Parts 4 Element 5 Lead wire 6 Backing tape 7 Cutting tool 8 Carrier 9 Nipping claws 10, 11, 12 Pulley 13 Belt 14 Motor 15 Transfer part 16 Mounting part 17 Substrate holding part 18 Substrate 19 Insert Holes 20, 21 motor 22 cradle 23, 24, 25 cam 26 transmission shaft 27, 28 pulley 29 belt 30 motor 31 control unit 32 storage unit 33 take-out detection unit 34 retention detection unit 35 delivery detection unit 36 pinching claw 37 input unit

Claims (7)

[Claims] 1. A supply unit for supplying a component, a board holding unit for holding a board on which the component is mounted, a mounting unit for mounting the component on a board, and a component supplied by the supply unit. A plurality of carriers that are held and conveyed to and delivered to the mounting unit, a conveyance unit that arranges and moves the plurality of carriers in a series of rings, a control unit that controls the operation of each unit, A mounting machine configured to have a storage unit for storing data on the availability of transporters, and to carry out component transport using only available transporters based on the availability data of each transporter. 2. The mounting machine according to claim 1, further comprising a detection unit for detecting a malfunction of the carrier. 3. The mounting machine according to claim 2, further comprising a take-out detection unit that detects a take-out operation failure of the carrier when taking out the component from the supply unit. 4. The mounting machine according to claim 2, further comprising a holding detection unit that detects a holding operation failure of the carrier when the component taken out of the supply unit is transferred to the mounting unit. 5. The mounting machine according to claim 2, further comprising: a delivery detection unit that detects a delivery operation failure of the carrier when delivering the component to the mounting unit. 6. The storage unit stores the number of operation failures of each carrier, and when the number of operation failures is equal to or greater than a predetermined number set in the storage unit, disables data relating to the carrier is stored in the storage unit. Claims 3 to
5. The mounting machine according to any one of 5. 7. The mounting machine according to claim 1, further comprising: an input unit for inputting data indicating whether or not each carrier can be used.