JP6870999B2 - Calibration parts supply unit, its automatic replacement system, and parts mounting machine - Google Patents

Description

This specification discloses a technique relating to a calibration component supply unit used for measuring the amount of component mounting misalignment of a component mounting machine, an automatic replacement system thereof, and a component mounting machine.

As described in Patent Document (Japanese Unexamined Patent Publication No. 2008-205134), in order to measure the component mounting position deviation amount of the component mounting machine, a component mounting position deviation amount measuring unit (accuracy) is provided in an empty space in the component mounting machine. An inspection unit) is installed, and this component mounting misalignment amount measurement unit is used to measure the component mounting misalignment amount. The component mounting position deviation measurement unit of Patent Document 1 is provided with a calibration component mounting portion on which a calibration component (inspection chip) is mounted and a calibration reference mark (inspection reference mark). It is equipped with a calibration mounting table (inspection table), and when measuring the amount of component mounting position deviation of the component mounting machine, the calibration component on the calibration component mounting part is attracted by the suction nozzle of the mounting head. Then, the calibration component and the calibration reference mark are placed in the field of view of the camera of the component mounting machine and imaged, and the captured image is processed for the calibration. The amount of deviation of the mounting position of the calibration component with respect to the reference mark is measured as the amount of component mounting position deviation of the component mounting machine.

Japanese Unexamined Patent Publication No. 2008-205134

In the above-mentioned Patent Document 1, since the component mounting position deviation amount measuring unit is installed in each of the plurality of component mounting machines constituting the component mounting line, it causes an increase in the manufacturing cost of each component mounting machine. .. Moreover, it may be difficult to install the component mounting position deviation amount measuring unit in the component mounting machine because there is no room in the empty space in the component mounting machine due to the space saving of the component mounting machine.

In order to solve the above problem, it is provided with a calibration component mounting section for mounting calibration components, and can be replaced with the mounting head of the component mounting machine when measuring the amount of component mounting position deviation of the component mounting machine. The calibration component is attracted by the calibration nozzle held in the above and mounted on the calibration mounting table of the component mounting machine, and the amount of deviation of the mounting position of the calibration component is measured by the component of the component mounting machine. A calibration component supply unit used to measure the amount of mounting misalignment, and the calibration component supply unit can be set in the feeder set portion of the component mounting machine so as to be replaceable with a feeder. It has a common feature that it is configured, and further has a feature described later.

Since this calibration component supply unit is set in the feeder set section of the component mounting machine so as to be replaceable with the feeder, one calibration component supply unit is used for a plurality of component mounting machines. Since it can be rotated, it is not necessary to provide a calibration component supply unit for each component mounting machine, and the manufacturing cost of the component mounting machine can be reduced accordingly. Moreover, since the calibration component supply unit is set in the feeder set section of the component mounting machine, it can be set even if there is no empty space in the component mounting machine, and it is possible to save space in the component mounting machine.

In this case, the mounting structure of the calibration component supply unit to the feeder set portion of the component mounting machine may be the same as the mounting structure of the feeder. In this way, the calibration parts supply unit can be attached / detached in the same procedure as the feeder attachment / detachment, and the calibration parts supply unit can be easily attached / detached.

In addition, the calibration component mounting part of the calibration component supply unit has multiple types of calibration components that can be attracted by multiple types of calibration nozzles that are interchangeably held by the mounting head of the component mounting machine. It may be configured so that it can be placed. In this way, a plurality of types of calibration parts required for measuring the amount of component mounting position deviation of one component mounting machine can be supplied by one calibration component supply unit.

Further, the calibration component mounting portion may be provided on the upper part of the calibration component supply unit so as to be replaceable. In this way, when a calibration component of a different type from the calibration component that can be supplied by the user-owned calibration component supply unit is required, the calibration component of the different type is used. All you have to do is obtain and replace the calibration parts mounting part on which the parts are placed.

Further, it is preferable to provide a shutter mechanism for preventing the calibration parts from falling off on the calibration parts mounting portion when the calibration parts supply unit is attached / detached or transferred. In this way, the shutter mechanism can reliably prevent the calibration parts from falling off when the calibration parts supply unit is attached / detached or transferred.

In this case, a connector for supplying an operating power supply from the component mounting machine side to the drive source of the shutter mechanism and receiving a signal for controlling the opening / closing operation of the shutter mechanism is provided in the calibration component supply unit, and this calibration is performed. It is preferable to set the component supply unit in the feeder set portion of the component mounting machine so that the connector is connected to the connector on the component mounting machine side. In this way, by setting the calibration component supply unit in the feeder set section of the component mounting machine, the connector on the calibration component supply unit side can be connected to the connector on the component mounting machine side at the same time. There is no need to connect the connector after setting the calibration component supply unit.
The replacement work of the calibration component supply unit configured as described above may be manually performed by an operator or may be automated.

The automatic replacement system that automates this replacement work takes out a plurality of feeders to be set in the feeder set section of the component mounting machine, a stock section for accommodating a calibration component supply unit, and a feeder to be replaced from the feeder set section. The replacement robot includes a replacement robot that collects the feeders in the stock section, takes out the feeder specified in the production job from the stock section, and sets the feeder in the feeder set section. The replacement robot measures the amount of component mounting misalignment of the component mounting machine. When measuring, it is preferable to take out the calibration component supply unit from the stock section and set it in an empty slot of the feeder set section. In this way, the calibration parts supply unit and the feeder can be automatically replaced between the feeder set part and the stock part of the parts mounting machine by the replacement robot, and the operator can automatically replace the calibration parts supply unit. There is no need to replace the feeder or feeder, which saves labor.

Further, the replacement robot may take out the calibration component supply unit from the feeder set portion of the component mounting machine after measuring the amount of component mounting position deviation of the component mounting machine and collect it. In this way, the work of collecting the calibration component supply unit can also be automated.

In this case, the replacement robot and the stock unit may be provided in each of the plurality of component mounting machines constituting the component mounting line, but the replacement robot and the stock section that are commonly used in the plurality of component mounting machines are provided. It may be configured as a new type. Specifically, the stock unit stores a plurality of feeders and calibration parts supply units to be set in the feeder set parts of the plurality of component mounting machines, and the replacement robot is used from the feeder set parts of the plurality of component mounting machines. The feeder to be replaced is taken out and collected in the stock section, and the feeder specified in the production job is taken out from the stock section and set in the feeder set section of the plurality of component mounting machines, and further, the plurality of component mounting machines are set. When measuring the amount of component mounting misalignment of any of the component mounting machines, take out the calibration component supply unit from the stock section and set it in an empty slot of the feeder set section of the component mounting machine. You can do it. In this way, it is possible to replace the calibration component supply unit and the feeder for a plurality of component mounting machines constituting the component mounting line with a single replacement robot, and the configuration of the component mounting line is simplified. The equipment cost can be reduced.

In this case as well, the replacement robot measures the amount of component mounting position deviation of any of the component mounting machines, and then takes out the calibration component supply unit from the feeder set section of the component mounting machine and collects it in the stock section. good.

In addition, when measuring the component mounting position deviation amount of a plurality of component mounting machines in order, the replacement robot starts with the feeder set portion of the component mounting machine that has finished measuring the component mounting position deviation amount first. The plurality of component mounting machines are repeatedly operated by taking out the supply unit, setting it in the feeder set section of the component mounting machine in the next measurement order, and measuring the amount of component mounting misalignment of the component mounting machine in the next measurement order. The amount of component mounting position deviation may be measured in order. By doing so, it is possible to efficiently measure the amount of component mounting position deviation of a plurality of component mounting machines in order.

The calibration nozzle mounting portion on which the calibration nozzle is mounted may be provided in the component mounting machine or in the calibration component supply unit.

Alternatively, in addition to the plurality of feeders and the calibration component supply unit, the calibration nozzle supply unit containing the calibration nozzle is housed in the stock unit, and the replacement robot is a component of the component mounting machine. When measuring the amount of mounting position deviation, the calibration component supply unit and the calibration nozzle supply unit may be taken out from the stock section and set in an empty slot of the feeder set section.

FIG. 1 is a perspective view showing the configuration of an entire component mounting line according to an embodiment of the present invention. FIG. 2 is a perspective view schematically showing the configuration of a component mounting machine with a replacement robot. FIG. 3 is a block diagram schematically showing the configuration of the control system of the component mounting line with the automatic replacement system. FIG. 4 is a perspective view showing a cassette type feeder. FIG. 5 is a perspective view showing a calibration component supply unit. FIG. 6 is a perspective view illustrating that the calibration component mounting portion on the upper part of the calibration component supply unit is replaceable. FIG. 7 is a perspective view showing a calibration component. FIG. 8 is a perspective view showing a nozzle supply unit for calibration. FIG. 9 is a perspective view showing a state in which the rotary nozzle station is removed from the calibration nozzle supply unit.

Hereinafter, an embodiment will be described with reference to the drawings.
First, the configuration of the component mounting line 10 will be described with reference to FIGS. 1 to 3.

The component mounting line 10 is configured by arranging a plurality of component mounting machines 12 along the transport direction (X direction) of the circuit board 11. As shown in FIG. 2, each component mounting machine 12 has two conveyors 13 that convey the circuit board 11 and a suction nozzle that sucks the components supplied from the cassette type feeder 14 and mounts them on the circuit board 11. A mounting head 15 for holding (not shown), a head moving device 16 for moving the mounting head 15 in the XY directions (left-right and front-back directions), and a component imaging device for capturing images of components sucked on the suction nozzle from the lower surface side thereof. A camera 17 (see FIG. 3) and the like are provided. A mark imaging camera 18 (see FIG. 3) that captures a reference mark (not shown) of the circuit board 11 is attached to the head moving device 16 so as to move integrally with the mounting head 15 in the XY directions. ..

In addition, as shown in FIG. 3, the control device 20 of the component mounting machine 12 includes an input device 21 such as a keyboard, a mouse, and a touch panel, and a hard disk, RAM, ROM, etc. for storing various control programs and various data. The storage device 22 (storage means) of the above is connected to a liquid crystal display, a display device 23 such as a CRT, and the like. The control device 20 of each component mounting machine 12 is connected to a production control computer 70 that manages the production of the entire component mounting line 10 via a network, and the production control computer 70 manages the production of each component mounting machine 12.

Each component mounting machine 12 of the component mounting line 10 transports the circuit board 11 conveyed from the component mounting machine 12 on the upstream side to a predetermined position by the conveyor 13, and uses a clamping mechanism (not shown) to transfer the circuit board 11 to a predetermined position. It is clamped and positioned, and the reference mark of the circuit board 11 is imaged by the mark imaging camera 18, the position of the reference mark (reference position of the circuit board 11) is recognized, and the reference mark is supplied from the cassette type feeder 14. The component to be mounted is attracted to the suction nozzle of the mounting head 15, moved from the suction position to the imaging position, and the component is imaged from the lower surface side by the component imaging camera 17, and the suction position shift amount of the component is obtained. After determining the above, the suction position shift amount is corrected, and the component is mounted on the circuit board 11 on the conveyor 13 to produce a component mounting board.

On the front side of the component mounting line 10, the cassette type feeder 14 set in the feeder setting section 24 of each component mounting machine 12, the calibration component supply unit 25, and the calibration nozzle supply unit 81 are automatically replaced. An automatic replacement system 26 is installed.

Here, the configuration of the cassette type feeder 14 will be described with reference to FIG.
The cassette case 32 of the cassette type feeder 14 is formed of a transparent or opaque plastic plate, a metal plate, or the like, and its side surface portion (cover) can be opened and closed. Inside the cassette case 32, a tape loading section 35 is provided for removably (replaceably) loading the tape reel 34 around which the component supply tape 33 is wound. A reel holding shaft 36 that rotatably holds the tape reel 34 is provided at the center of the tape loading portion 35.

Inside the cassette case 32, a tape feeding mechanism 38 that sends the component supply tape 33 pulled out from the tape reel 34 to the component suction position, and a top film 40 (also called a cover tape) from the component supply tape 33 in front of the component suction position. A top film peeling mechanism 39 is provided for peeling to expose the parts in the part supply tape 33.

The tape feed mechanism 38 is composed of a sprocket 42 provided near the lower part of the component suction position, a motor 43 for rotationally driving the sprocket 42, and the like, and is formed on one side edge of the component supply tape 33 at a predetermined pitch. By engaging the teeth of the sprocket 42 with the tape feed hole and rotating the sprocket 42, the component supply tape 33 is pitch-fed to the component suction position.

The top film peeling mechanism 39 holds the component supply tape 33 in front of the component suction position to peel the top film 40 from the upper surface of the component supply tape 33, and the top film peeled by the tape presser 45. A top film feed gear mechanism 47 that pulls 40 in a direction opposite to the tape feed direction and feeds the 40 into the top film recovery unit 46 provided on the upper part of the cassette case 32, a motor 48 that drives the top film feed gear mechanism 47, and the like. It is composed of.

At the edge of the cassette case 32 on the tape feed direction side, a waste tape 33a (only the carrier tape from which the top film 40 has been peeled off in this embodiment) from which the parts have been taken out after passing through the component suction position is placed below. The waste tape discharge passage 50 for guiding and discharging the waste tape is provided so as to extend downward, and the outlet 50a of the waste tape discharge passage 50 is provided at a position below the center of the end surface of the cassette case 32 on the tape feed direction side. ing.

Inside the cassette case 32, a control device 52 for controlling the motor 43 of the tape feeding mechanism 38 and the motor 48 of the top film peeling mechanism 39 is provided. In addition, although not shown, the cassette case 32 is provided with a communication / power supply connector connected to a communication / power supply connector on the component mounting machine 12 side. As a result, by setting the cassette type feeder 14 in the feeder set portion 24 of the component mounting machine 12, the connector on the cassette type feeder 14 side is connected to the connector on the component mounting machine 12 side.

Further, a feeder identification information recording unit (not shown) that records or stores a feeder ID (identification information of the feeder 14) is provided at a predetermined position of the cassette case 32. As the feeder identification information recording unit, for example, a code label in which the feeder ID is recorded with a bar code, a two-dimensional code, or the like may be used, or an electronic tag (RF tag, IC tag, radio wave tag) that stores the feeder ID data may be used. , Also called a wireless tag).

Next, the configuration of the calibration component supply unit 25 will be described with reference to FIGS. 5 and 6.
The calibration component supply unit 25 is configured to be replaceably set with the cassette type feeder 14 in the feeder setting section 24 of the component mounting machine 12. The height dimension and depth dimension (Y direction dimension) of the calibration component supply unit 25 are almost the same as the height dimension and depth dimension of the cassette type feeder 14, and the feeder set portion of the component mounting machine 12 The mounting structure of the calibration component supply unit 25 to the 24 is shared with the mounting structure of the cassette type feeder 14. The width dimension (X direction dimension) of the calibration component supply unit 25 does not necessarily have to be the same as the width dimension of the cassette type feeder 14, but is a width dimension that spans a plurality of slots of the feeder set unit 24. However, the point is that the width dimension can be set in the feeder set portion 24.

On the upper surface of the calibration component supply unit 25, a calibration component mounting section 56 on which the calibration component 55 (see FIG. 7) or the like is mounted is provided. A plurality of types of calibration components 55 and the like that can be attracted by a plurality of types of calibration nozzles that are interchangeably held by the mounting head 15 of the component mounting machine 12 are mounted on the calibration component mounting section 56. A plurality of component accommodating recesses 56a and 56b are provided so as to be possible. For example, a glass calibration component 55 (see FIG. 7) attracted by a large or medium-sized calibration nozzle is placed in one component accommodating recess 56a, and a small size is placed in the other component accommodating recess 56b. A small calibration component (square chip) that is attracted by the calibration nozzle is placed. As a result, a plurality of types of calibration parts 55 and the like required for measuring the amount of component mounting position deviation of one component mounting machine 12 can be supplied by one calibration component supply unit 25. There is. As shown in FIG. 7, an opaque graphic pattern 57 imitating the outer shape of a leaded IC chip is formed on the lower surface of the glass calibration component 55.

The calibration component mounting section 56 is replaceably attached to the upper surface of the calibration component supply unit 25 by means of engaging means, screws, or the like, and is another calibration component mounting section 58 (see FIG. 6). It is exchangeable with. Another calibration component mounting section 58 is also provided with a plurality of component accommodating recesses 58a to 58c so that a plurality of types of calibration components 55 and the like can be mounted. As a result, when a different type of calibration component 55 or the like other than the calibration component 55 or the like that can be supplied by the user-owned calibration component supply unit 25 is required, the other type of calibration is required. It is possible to deal with this by simply obtaining and replacing the calibration component mounting unit 58 on which the calibration component 55 or the like is mounted.

Further, in order to prevent the calibration parts 55 and the like on the calibration parts mounting parts 56 and 58 from falling off when the calibration parts supply unit 25 is attached / detached or transferred, the calibration parts mounting parts 56, A shutter plate 60 is provided on the upper surface of the 58 so as to be slidable to open and close, and a drive for opening and closing the shutter plate 60 is driven inside the calibration component mounting portions 56, 58 (or the calibration component supply unit 25). Motors, cylinders, solenoids and the like are provided as sources. When measuring the component mounting position shift amount of the component mounting machine 12, the drive source of the shutter mechanism is energized, the shutter plate 60 is opened by the driving force of the drive source, and after the measurement of the component mounting position shift amount is completed, the shutter mechanism The energization to the drive source of the above is turned off, the shutter plate 60 is automatically closed by the return spring (not shown) of the shutter mechanism, and the calibration parts 55 and the like are prevented from popping out. There is.

Further, the calibration component supply unit 25 has a connector (not shown) for supplying an operating power supply from the component mounting machine 12 side to the drive source of the shutter mechanism and receiving a signal for controlling the opening / closing operation of the shutter mechanism. ) Is provided. As a result, by setting the calibration component supply unit 25 in the feeder set unit 24 of the component mounting machine 12, the connector on the calibration component supply unit 25 side is connected to the connector on the component mounting machine 12 side. It has become. In this way, the calibration component supply unit 25 is set in the feeder set section 24 of the component mounting machine 12, and at the same time, the connector on the calibration component supply unit 25 side is connected to the connector on the component mounting machine 12. It is not necessary to connect the connector after setting the calibration component supply unit 25.

Further, a unit identification information recording unit (not shown) that records or stores a unit ID (identification information of the calibration component supply unit 25) is provided at a predetermined position of the calibration component supply unit 25, and this unit is provided. The calibration component supply unit 25 can be identified by the ID. As the unit identification information recording unit, for example, a code label in which the feeder ID is recorded with a bar code, a two-dimensional code, or the like may be used, or an electronic tag (RF tag, IC tag, radio wave tag) that stores the feeder ID data may be used. , Also called a wireless tag).

Next, the configuration of the calibration nozzle supply unit 81 will be described with reference to FIGS. 8 and 9.
The calibration nozzle supply unit 81 is configured to be replaceably set with the cassette type feeder 14 in the feeder setting unit 24 of the component mounting machine 12. The height dimension and depth dimension (Y direction dimension) of the calibration nozzle supply unit 81 are almost the same as the height dimension and depth dimension of the cassette type feeder 14, and the feeder set portion of the component mounting machine 12 The mounting structure of the calibration nozzle supply unit 81 to 24 is shared with the mounting structure of the cassette type feeder 14. The width dimension (X direction dimension) of the calibration nozzle supply unit 81 does not necessarily have to be the same as the width dimension of the cassette type feeder 14, but is a width dimension that spans a plurality of slots of the feeder set unit 24. However, the point is that the width dimension can be set in the feeder set portion 24.

Like the cassette type feeder 14, the cassette case 83 of the calibration nozzle supply unit 81 is formed of a transparent or opaque plastic plate, a metal plate, or the like, and its side surface portion (cover) can be opened and closed. Inside the cassette case 83, a nozzle station loading portion 85 having a circular recess shape for loading the disk-shaped rotary nozzle station 84 detachably (replaceably) is provided, and a drive shaft 86 is provided at the center of the nozzle station loading portion 85. (See FIG. 6) is provided toward the inside of the cassette case 83 in the width direction, and the central portion of the rotary nozzle station 84 is rotatably and detachably connected to the drive shaft 86. On the outer peripheral portion of the rotary nozzle station 84, a plurality of calibration nozzles 87 to be interchangeably held by the mounting head 15 of the component mounting machine 12 are arranged radially at a predetermined pitch and held detachably. ing.

In addition to the calibration nozzle 87, a normal suction nozzle (not shown) and a jig nozzle for measuring the nozzle position (not shown) can be held on the outer periphery of the rotary nozzle station 84. The normal suction nozzle and the jig nozzle for measuring the nozzle position can also be replaced. When measuring the position of the suction nozzle held by the mounting head 15 of the component mounting machine 12, the jig nozzle for measuring the nozzle position is held by the mounting head 15 of the component mounting machine 12 and the component is imaged from below. An image is taken by the camera 17, the image is processed, and the position of the jig nozzle for measuring the nozzle position with respect to the mounting head 15 is measured as the nozzle position.

On the other hand, in the cassette case 83, a rotation drive device 88 for rotating the rotary nozzle station 84 is provided. The rotation drive device 88 includes a motor 89 as a drive source and a gear mechanism 90 that transmits the rotation of the motor 89 to the drive shaft 86.

A nozzle replacement port 91 is formed at a position corresponding to the uppermost end of the rotary nozzle station 84 (directly above the center of the rotary nozzle station 84) on the upper end surface of the cassette case 83, and the nozzle replacement port 91 is formed. The calibration nozzle 87 and the normal suction nozzle are exchanged between the rotary nozzle station 84 and the mounting head 15 of the component mounting machine 12 through the rotary nozzle station 84. The cassette case 83 is provided with a shutter mechanism 92 that opens and closes the nozzle exchange port 91. The shutter mechanism 92 includes a shutter plate 93 that slides along the nozzle exchange port 91, a motor 94 that is a drive source thereof, a feed gear 95 that converts the rotation of the motor 94 into linear motion, and the feed gear 95. It is composed of a link member 96 that connects to and from the shutter plate 93.

When the calibration nozzle 87 in the calibration nozzle supply unit 81 set in the feeder set portion 24 of the component mounting machine 12 is held by the mounting head 15 of the component mounting machine 12, the mounting head 15 is held by the calibration nozzle. The nozzle replacement port 91 of the supply unit 81 is moved upward, and the shutter plate 93 of the shutter mechanism 92 is opened to open the nozzle replacement port 91. Then, the rotary nozzle station 84 in the calibration nozzle supply unit 81 is appropriately rotated to position the calibration nozzle 87 to be replaced this time at the nozzle replacement port 91, and then the nozzle holder of the mounting head 15. (Not shown) is lowered to hold the calibration nozzle 87 in the nozzle holder of the mounting head 15 through the nozzle exchange port 33, and then the nozzle holder of the mounting head 15 is raised for the calibration. The nozzle 87 is taken out from the rotary nozzle station 84.

When returning the calibration nozzle 87 held in the nozzle holder of the mounting head 15 to the empty slot of the rotary nozzle station 84 in the calibration nozzle supply unit 81, the rotary nozzle station 84 is appropriately rotated. The empty slot of the rotary nozzle station 84 is located at the nozzle replacement port 33, the nozzle holder of the mounting head 15 is lowered, and the calibration nozzle 87 held in the nozzle holder of the mounting head 15 is a rotary nozzle. Return to the empty slot of station 84.

Inside the cassette case 83, a control device 97 for controlling the motor 89 of the rotary drive device 88 and the motor 94 of the shutter mechanism 92 is provided. In addition, although not shown, the cassette case 83 is provided with a communication / power supply connector connected to a communication / power supply connector on the component mounting machine 12 side. As a result, by setting the calibration nozzle supply unit 81 in the feeder set portion 24 of the component mounting machine 12, the connector on the calibration nozzle supply unit 81 side is connected to the connector on the component mounting machine 12 side. It has become.

Further, a unit identification information recording unit (not shown) that records or stores a unit ID (identification information of the calibration nozzle supply unit 81) is provided at a predetermined position of the calibration nozzle supply unit 81, and this unit is provided. The calibration nozzle supply unit 81 can be identified by the ID. As the unit identification information recording unit, for example, a code label in which the feeder ID is recorded with a bar code, a two-dimensional code, or the like may be used, or an electronic tag (RF tag, IC tag, radio wave tag) that stores the feeder ID data may be used. , Also called a wireless tag).

On the other hand, although not shown, a calibration mounting table is provided at a predetermined position in the component mounting machine 12. When measuring the amount of component mounting position deviation of the component mounting machine 12, the calibration component 55 on the calibration component supply unit 25 is used by the calibration nozzle 87 held by the mounting head 15 of the component mounting machine 12. Is attracted and mounted on the calibration mounting table of the component mounting machine 12, the mounting state is imaged by the mark imaging camera 18, and the image is processed to perform calibration on the calibration mounting table. The amount of deviation of the mounting position of the component 55 (the amount of displacement of the graphic pattern 57 of the calibration component 55 with respect to the reference mark of the calibration mounting table) is measured as the amount of component mounting position deviation of the component mounting machine 12.

Next, the configuration of the automatic replacement system 26 that automatically replaces the cassette type feeder 14, the calibration component supply unit 25, and the calibration nozzle supply unit 81 with respect to the feeder set unit 24 of each component mounting machine 12 will be described. To do.

The automatic replacement system 26 includes a plurality of cassette-type feeders 14 set in the feeder set unit 24 of each component mounting machine 12, a stock unit 71 for accommodating a calibration component supply unit 25 and a calibration nozzle supply unit 81. The feeder identification information of the replacement robot 72 that replaces the cassette type feeder 14, the calibration component supply unit 25, and the calibration nozzle supply unit 81 between the feeder set unit 24 and the stock unit 71, and the cassette type feeder 14. It is configured to include an identification information reading unit 73 (see FIG. 3) that reads a feeder ID and a unit ID from each unit identification information recording unit of the recording unit, the calibration component supply unit 25, and the calibration nozzle supply unit 81. ing.

In this embodiment, the stock unit 71 is arranged below the feeder set unit 24 of the plurality of component mounting machines 12, and has a plurality of cassette type feeders 14 set in the feeder set unit 24 of the plurality of component mounting machines 12. It is configured to accommodate the calibration component supply unit 25 and the calibration nozzle supply unit 81. A plurality of cassette type feeders 14, a stock portion (not shown) capable of accommodating a plurality of cassette type feeders 14, a calibration component supply unit 25, and a calibration nozzle supply unit 81 are also provided in the uppermost stream of the component mounting line 10. There is.

The replacement robot 72 takes out the cassette type feeder 14 to be replaced from the feeder set unit 24 of the plurality of component mounting machines 12 and collects it in the stock unit 71, and also collects the cassette type feeder 14 specified in the production job from the stock unit 71. When 14 is taken out and set in the feeder set unit 24 of the plurality of component mounting machines 12, and further, the amount of component mounting position deviation of any of the plurality of component mounting machines 12 is measured. , The calibration component supply unit 25 and the calibration nozzle supply unit 81 are taken out from the stock section 71 and set in the empty slot of the feeder set section 24 of the component mounting machine 12, and the component mounting position of the component mounting machine 12 is displaced. After measuring the amount, the calibration component supply unit 25 and the calibration nozzle supply unit 81 are taken out from the feeder set unit 24 of the component mounting machine 12 and collected in the stock unit 71.

Further, when measuring the component mounting position deviation amounts of the plurality of component mounting machines 12 in order before the start of production, the replacement robot 72 is the feeder of the component mounting machine 12 for which the measurement of the component mounting position deviation amounts has been completed first. The calibration component supply unit 25 and the calibration nozzle supply unit 81 are taken out from the set unit 24, and these are set in the feeder set unit 24 of the component mounting machine 12 in the next measurement order, and the components in the next measurement order are set. The operation of measuring the component mounting position deviation amount of the mounting machine 12 is repeated, and the component mounting position deviation amount of the plurality of component mounting machines 12 is measured in order.

The area in front of the feeder set section 24 and the stock section 71 of the plurality of component mounting machines 12 is between the feeder set section 24 and the stock section 71, the cassette type feeder 14, the calibration component supply unit 25, and the calibration. It is used as a replacement area for replacing the nozzle supply unit 81 for mounting, and the replacement robot 72 is arranged in this replacement area. As shown in FIG. 1, an X-axis rail 74 for moving the replacement robot 72 in the left-right direction (X direction) along the arrangement of the component mounting machines 12 is provided on the front surface of the component mounting line 10 so as to extend in the X direction. Has been done.

As shown in FIG. 3, the control device 75 of the automatic replacement system 26 is connected to the production management computer 70 of the component mounting line 10 via a network, and the board type switching information transmitted from the production management computer 70 of the component mounting line 10 is transmitted. The operation of the replacement robot 72 is controlled according to the production management information such as parts scraping information and the parts mounting position deviation amount measurement instruction, and a cassette type is used between the feeder set unit 24 and the stock unit 71 of each component mounting machine 12. The feeder 14, the calibration component supply unit 25, and the calibration nozzle supply unit 81 are replaced.

When measuring the amount of component mounting position deviation of any of the plurality of component mounting machines 12 of the component mounting line 10, the replacement robot 72 and the calibration component supply unit 25 from the stock unit 71 The calibration nozzle supply unit 81 is taken out and set in an empty slot of the feeder set portion 24 of the component mounting machine 12, and the calibration nozzle 87 is held by the nozzle holder of the mounting head 15 of the component mounting machine 12. The calibration nozzle 87 attracts the calibration component 55 on the calibration component supply unit 25, and the calibration component 55 is mounted from the lower surface side of the calibration component 55 by the component imaging camera 17 of the component mounting machine 12. An image is taken, the captured image is processed, and the amount of deviation of the suction position of the calibration component 55 with respect to the calibration nozzle 87 in the XY direction and the θ direction (rotation direction) is measured. After that, the amount of deviation of the suction position in the XY direction and the θ direction of the calibration component 55 is corrected, the calibration component 55 is mounted on the calibration mounting table of the component mounting machine 12, and the mounting state is checked. By taking an image with the mark imaging camera 18 and processing the image, the amount of deviation of the mounting position of the calibration component 55 on the calibration mounting table in the XY direction and the θ direction (reference for the calibration mounting table). The amount of misalignment of the graphic pattern 57 of the calibration component 55 with respect to the mark in the XY direction and the θ direction) is measured as the amount of misalignment of the component mounting of the component mounting machine 12.

According to the present embodiment described above, since the calibration component supply unit 25 is set in the feeder setting unit 24 of the component mounting machine 12 so as to be replaceable with the feeder 14, the plurality of component mounting machines 12 can be set. It is possible to reuse one calibration component supply unit 25, and it is not necessary to provide a calibration component supply unit 25 for each component mounting machine 12, which reduces the manufacturing cost of the component mounting machine 12. it can. Moreover, since the calibration component supply unit 25 is set in the feeder setting section 24 of the component mounting machine 12, it can be set even if there is no empty space in the component mounting machine 12, and the space of the component mounting machine 12 can be saved. It can also be used for conversion.

Moreover, in this embodiment, since the mounting structure of the calibration component supply unit 25 to the feeder set portion 24 of the component mounting machine 12 is shared with the mounting structure of the feeder 14, the calibration component supply unit 25 is used. The attachment / detachment can be performed in the same procedure as the attachment / detachment of the feeder 14, and the replacement robot 72 can automatically replace the calibration component supply unit 25 in the same manner as the feeder 14.

Further, in this embodiment, since the calibration nozzle supply unit 81 is set in the feeder setting unit 24 of the component mounting machine 12 so as to be replaceable with the feeder 14, one unit is set for each of the plurality of component mounting machines 12. The calibration nozzle supply unit 81 can be reused, and it is not necessary to provide the calibration nozzle supply unit 81 for each component mounting machine 12, and the manufacturing cost of the component mounting machine 12 can be reduced accordingly. Moreover, since the calibration nozzle supply unit 81 is set in the feeder setting unit 24 of the component mounting machine 12, it can be set even if there is no empty space in the component mounting machine 12, and the space of the component mounting machine 12 can be saved. It can also be used for conversion.

However, in the present invention, a calibration nozzle mounting portion (nozzle changer) on which the calibration nozzle 87 is mounted may be provided in the component mounting machine 12. Alternatively, a calibration nozzle mounting portion for mounting the calibration nozzle 87 for adsorbing the calibration component 55 or the like on the calibration component mounting portion 56 is provided on the calibration component supply unit 26. It may be provided as a configuration.

Further, in this embodiment, the parts supply unit 25 for calibration and the nozzle supply unit 81 for calibration are automatically replaced by using the automatic replacement system 26 that automatically replaces the cassette type feeder 14. The calibration parts supply unit 25 and the calibration nozzle supply unit 81 and the feeder 14 can be automatically replaced while the mounting machine 12 is in operation, and the operator can automatically replace the calibration parts supply unit 25 and the calibration nozzle supply unit. It is not necessary to replace the 81 and the feeder 14, which saves labor.

However, in the present invention, the operator may replace the calibration component supply unit 25 with the calibration nozzle supply unit 81 and the feeder 14, and even in this case, the intended object of the present invention is to be performed. Can be achieved. When the replacement work is performed by an operator, the feeder 14 is not limited to the cassette type feeder, and a general tape feeder other than the cassette type may be used.

Further, since the automatic replacement system 26 of this embodiment has a configuration in which a replacement robot 72 and a stock unit 71 that are commonly used in the plurality of component mounting machines 12 constituting the component mounting line 10 are provided, the component mounting line 10 is provided. The replacement work of the calibration component supply unit 25, the calibration nozzle supply unit 81, and the feeder 14 for the plurality of component mounting machines 12 constituting the above can be handled by one replacement robot 72, and the component mounting line 10 can be replaced. The configuration can be simplified and the equipment cost can be reduced.

However, the present invention may be configured in which a replacement robot and a stock unit are provided in each of the plurality of component mounting machines 12 constituting the component mounting line 10, and even in this case, the intended object of the present invention can be achieved.

In addition, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the gist, such as the configuration of the component mounting machine 12 and the configuration of the automatic replacement system 26 may be appropriately changed. Needless to say.

10 ... Parts mounting line, 11 ... Circuit board, 12 ... Parts mounting machine, 14 ... Cassette type feeder, 15 ... Mounting head, 16 ... Head moving device, 17 ... Parts imaging camera, 18 ... Mark imaging camera, 20 ... Control device for component mounting machine, 25 ... Calibration parts supply unit, 26 ... Automatic replacement system, 33 ... Parts supply tape, 55 ... Calibration parts, 56 ... Calibration parts mounting unit, 56a, 56b ... Parts storage recess, 58 ... Calibration parts mounting part, 58a, 58b, 58c ... Parts storage recess, 60 ... Shutter plate, 70 ... Production control computer, 71 ... Stock part, 72 ... Replacement robot, 73 ... Identification information reading Unit, 81 ... Calibration nozzle supply unit, 87 ... Calibration nozzle

Claims (12)

Equipped with a calibration component mounting section for mounting calibration components
For calibration of the component mounting machine, the calibration component is attracted by a calibration nozzle that is interchangeably held by the mounting head of the component mounting machine when measuring the amount of component mounting position deviation of the component mounting machine. A calibration component supply unit used for mounting on a mounting table and measuring the amount of displacement of the mounting position of the calibration component as the amount of displacement of the component mounting position of the component mounting machine.
The calibration component supply unit is configured to be replaceably set with a feeder in the feeder set portion of the component mounting machine.
The calibration component mounting portion is a calibration component supply unit that is replaceably provided above the calibration component supply unit. The calibration component supply unit according to claim 1, wherein the mounting structure of the calibration component supply unit to the feeder set portion is common to the mounting structure of the feeder. The calibration component mounting unit is configured so that a plurality of types of calibration components that can be attracted by a plurality of types of calibration nozzles that are interchangeably held on the mounting head of the component mounting machine can be mounted. The calibration component supply unit according to claim 1 or 2. Equipped with a calibration component mounting section for mounting calibration components
For calibration of the component mounting machine, the calibration component is attracted by a calibration nozzle that is interchangeably held by the mounting head of the component mounting machine when measuring the amount of component mounting position deviation of the component mounting machine. A calibration component supply unit used for mounting on a mounting table and measuring the amount of displacement of the mounting position of the calibration component as the amount of displacement of the component mounting position of the component mounting machine.
The calibration component supply unit is configured to be replaceably set with a feeder in the feeder set portion of the component mounting machine.
A shutter mechanism is provided to prevent the calibration parts from falling off on the calibration parts mounting portion when the calibration parts supply unit is attached / detached or transferred.
A connector is provided for supplying an operating power supply from the component mounting machine side to the drive source of the shutter mechanism and receiving a signal for controlling the opening / closing operation of the shutter mechanism.
A calibration component supply unit configured so that the connector is connected to the connector on the component mounting machine side by setting the calibration component supply unit in the feeder set portion of the component mounting machine. An automatic replacement system for a calibration component supply unit in which the calibration component supply unit according to any one of claims 1 to 4 is set in a feeder set portion of the component mounting machine.
A plurality of feeders to be set in the feeder set unit, a stock unit for accommodating the calibration component supply unit, and a stock unit.
It is provided with a replacement robot that takes out the feeder to be replaced from the feeder set section and collects it in the stock section, and also takes out the feeder specified in the production job from the stock section and sets it in the feeder set section.
The replacement robot takes out the calibration component supply unit from the stock unit and sets it in an empty slot of the feeder set unit when measuring the component mounting position deviation amount of the component mounting machine. Automatic replacement system for parts supply unit for calibration. The calibration according to claim 5, wherein the replacement robot takes out and collects the calibration component supply unit from the feeder set unit after measuring the component mounting position deviation amount of the component mounting machine. Automatic replacement system for parts supply unit. The stock unit houses a plurality of feeders to be set in the feeder set unit of the plurality of component mounting machines and the calibration component supply unit.
The replacement robot takes out the feeder to be replaced from the feeder set section of the plurality of component mounting machines and collects it in the stock section, and also takes out the feeder specified in the production job from the stock section and takes out the feeder specified in the production job to the plurality of component mounting machines. When measuring the amount of component mounting position deviation of any of the plurality of component mounting machines, the calibration component supply unit is taken out from the stock section. The automatic replacement system for the calibration component supply unit according to claim 5 or 6, which is set in an empty slot of the feeder set section of the component mounting machine. When the replacement robot sequentially measures the component mounting position deviation amount of a plurality of component mounting machines, the calibration component is supplied from the feeder set portion of the component mounting machine that has completed the measurement of the component mounting position deviation amount first. The unit is taken out, set in the feeder set part of the component mounting machine in the next measurement order, and the operation of measuring the component mounting position deviation amount of the component mounting machine in the next measurement order is repeated to repeat the operation of the plurality of component mounting machines. The automatic replacement system for a calibration component supply unit according to claim 7, wherein the component mounting misalignment amount is measured in order. The calibration component supply unit is provided with a calibration nozzle mounting portion on which the calibration nozzle is mounted.
When measuring the amount of component mounting position deviation of the component mounting machine, the calibration mounted on the calibration nozzle mounting section of the calibration component supply unit set in the feeder set section of the component mounting machine. The automatic replacement system for a calibration component supply unit according to any one of claims 5 to 8, wherein the mounting nozzle is held by the mounting head. In the stock unit, in addition to the plurality of feeders and the calibration component supply unit, a calibration nozzle supply unit containing the calibration nozzle is housed.
When measuring the amount of component mounting position deviation of the component mounting machine, the replacement robot takes out the calibration component supply unit and the calibration nozzle supply unit from the stock unit and puts them in an empty slot of the feeder set unit. The automatic replacement system for the calibration component supply unit according to any one of claims 5 to 8, which is set. In the component mounting machine in which the calibration component supply unit according to any one of claims 1 to 4 is set in the feeder set unit so as to be replaceable with the feeder.
A component imaging camera that captures the components sucked on the suction nozzle, which is replaceably held by the mounting head, from the lower surface side.
It is equipped with a mark imaging camera that captures the reference mark of the circuit board on which the component is mounted from above.
The control device that controls the operation of the component mounting machine attracts the calibration component to the calibration nozzle held by the mounting head when measuring the component mounting position deviation amount of the component mounting machine. Then, the calibration component is imaged from the lower surface side by the component imaging camera, the captured image is processed, and the amount of deviation of the suction position of the calibration component with respect to the calibration nozzle is measured. , The amount of deviation of the suction position is corrected, the calibration component is mounted on the calibration mounting table, and the calibration component and the calibration reference mark are placed in the field of view of the mark imaging camera. A component mounting machine that captures and captures images, processes the captured image, and measures the amount of deviation of the mounting position of the calibration component with respect to the calibration reference mark. Equipped with a calibration component mounting section for mounting calibration components
When measuring the amount of component mounting position deviation of the component mounting machine, the calibration component is attracted by a nozzle held by the mounting head of the component mounting machine and mounted on the calibration mounting table of the component mounting machine. A calibration component supply unit used to measure the amount of displacement of the mounting position of the calibration component as the amount of displacement of the component mounting position of the component mounting machine.
The calibration component supply unit is configured to be replaceably set with a feeder in the feeder set portion of the component mounting machine.
The calibration component mounting portion is a calibration component supply unit that is replaceably provided above the calibration component supply unit.

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