WO2005107354A1 - プリント基板支持装置 - Google Patents
プリント基板支持装置 Download PDFInfo
- Publication number
- WO2005107354A1 WO2005107354A1 PCT/JP2005/008001 JP2005008001W WO2005107354A1 WO 2005107354 A1 WO2005107354 A1 WO 2005107354A1 JP 2005008001 W JP2005008001 W JP 2005008001W WO 2005107354 A1 WO2005107354 A1 WO 2005107354A1
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- WO
- WIPO (PCT)
- Prior art keywords
- support
- pin
- height
- imaging
- support pin
- Prior art date
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
- H05K13/0061—Tools for holding the circuit boards during processing; handling transport of printed circuit boards
- H05K13/0069—Holders for printed circuit boards
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
- H05K13/08—Monitoring manufacture of assemblages
- H05K13/085—Production planning, e.g. of allocation of products to machines, of mounting sequences at machine or facility level
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53039—Means to assemble or disassemble with control means energized in response to activator stimulated by condition sensor
- Y10T29/53061—Responsive to work or work-related machine element
- Y10T29/53083—Responsive to work or work-related machine element including means to apply magnetic force directly to position or hold work
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53087—Means to assemble or disassemble with signal, scale, illuminator, or optical viewer
- Y10T29/53091—Means to assemble or disassemble with signal, scale, illuminator, or optical viewer for work-holder for assembly or disassembly
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/5313—Means to assemble electrical device
- Y10T29/53174—Means to fasten electrical component to wiring board, base, or substrate
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/5313—Means to assemble electrical device
- Y10T29/53174—Means to fasten electrical component to wiring board, base, or substrate
- Y10T29/53178—Chip component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/5313—Means to assemble electrical device
- Y10T29/53174—Means to fasten electrical component to wiring board, base, or substrate
- Y10T29/53183—Multilead component
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/5313—Means to assemble electrical device
- Y10T29/53187—Multiple station assembly apparatus
Definitions
- the present invention relates to a printed circuit board support device, and more particularly, to a height of a support surface of a support pin of a device for supporting a printed circuit board by a support pin.
- This type of printed circuit board support device is already known, for example, as described in Patent Documents 1 and 2 below.
- a reference mark is provided on a support surface of a support pin for supporting a printed circuit board, and after the support pin is attached to an S-pin support, the reference mark is set by an imaging device. The image is taken. Then, the position of the support pin in the horizontal direction is calculated based on the imaging data, and the position shift amount is calculated. If there is a position shift exceeding the allowable range, it is determined that the support pin arrangement is inappropriate. The placement is modified.
- a device that supports a printed circuit board with support pins is often used when it is necessary to partially support the printed circuit board while avoiding electronic circuit components or unevenness already mounted on the back side of the printed circuit board. Improper placement of the support pins may cause damage to electronic circuit components, printed circuit boards, support pins, etc., and requires accurate placement.
- an image of the printed circuit board is taken by an image pickup device in a state where the printed circuit board is supported by support pins attached to a support base, and an operator uses a monitor.
- the height is adjusted manually while looking at the image of the printed circuit board.
- the height of the supporting surface is adjusted according to the height of the supported surface, which is the back surface of the printed circuit board.
- Patent Document 1 JP-A-11-195899
- Patent Document 2 JP-A-2002-185189
- the printed circuit board support device described in Patent Document 1 While applying force, the printed circuit board support device described in Patent Document 1 has a Displacement of the disposition position is eliminated Force is not eliminated even if there is a deviation in the height of the support surface. Further, in the printed circuit board support device described in Patent Document 2, the height of the support surface is adjusted, but the operation is performed manually, which is troublesome.
- the present invention has been made in view of the above circumstances, and has been made to provide a printed circuit board supporting device that supports a printed circuit board with support pins, and has an object to facilitate handling of the height of a supporting surface. It is.
- a printed board supporting apparatus includes: (a) a supporting pin for supporting a printed board by a supporting surface; (b) a pin supporting member for supporting the supporting pin; A height detection device that includes at least a height detection head and that detects the height of the support surface of the support pin supported by the pin support member.
- the height of the support surface of the support pin may be detected based on the height position of the height detection head, or may be detected based on the height position of the pin support member.
- the height position set may be detected based on the design.
- a height direction distance detection unit is provided, and a height deviation detection unit that detects the height direction distance that is the distance of the reference force in the height direction of the support surface is provided.
- the deviation of the actual height from the set height may be detected.
- the former is called height direction distance detection
- the latter is called height deviation detection, and these are collectively called height detection.
- both detection of the height direction distance and detection of the height deviation are included.
- the height detection head examples include various types such as a non-contact type height detection head such as a laser displacement detection device and an imaging device, and a contact type height detection head including a touch sensor and an elevating device that moves the touch sensor up and down.
- the laser displacement detector for example, focuses a laser beam emitted by a laser beam generator using a projection optical system, irradiates the laser beam onto a support surface, and focuses the reflected light on a semiconductor position detection element using a light receiving optical system. , And the reflected light condensing position is calculated by an arithmetic circuit. Since the focusing position of the semiconductor position detecting element changes depending on the height of the supporting surface, the height of the supporting surface can be determined by calculating the focusing position.
- the printed circuit board is a printed wiring board on which printed wiring is formed, a printed circuit board on which electronic circuit components are mounted at predetermined positions and soldered and completed to be mounted, and processes between them. As well as semi-finished products.
- the height of the support surface By detecting the height of the support surface, for example, it is possible to determine whether or not the height is appropriate for supporting the printed circuit board.
- the reasons for the incorrect height of the support surface include, for example, the wrong type (length) of the support pins, incorrect adjustment of the height of the support surface, and wear of the support surface.
- a shift in the height of the support surface due to a wrong type of support pin is called a shift due to a difference in type, and a shift due to a height adjustment miss is called a shift in height adjustment.
- Wear, foreign matter penetration, depression of pin support members, etc. Any of the small deviation amounts is collectively referred to as a deviation due to wear or the like.
- the height deviation includes these various deviations.
- the height detection device is a component of the support pin defect detection device.
- the height of the support surface can be adjusted.
- the support pin is provided so as to be movable in a direction parallel to the axis of the support pin with respect to the mounting portion where the support portion including the support surface is mounted on the pin support member, and the support portion is moved relative to the mounting portion.
- the height of the support surface can be adjusted by operating the moving device to move the support section based on the acquired height deviation. If the moving device can be controlled automatically, the height of the support surface can be automatically adjusted.
- the height detecting device constitutes a supporting pin height adjusting device together with the moving device.
- a height detection device that includes at least a height detection head and detects the height of the support surface of the support pin supported by the pin support member;
- Printed circuit board supporting device including:
- the printed circuit board support device further including a first relative movement device that relatively moves the height detection head and the support pin in a direction orthogonal to an axis of the support pin.
- the height of the support pins can be automatically detected, and the height can be detected quickly and easily.
- a surface imaging device capable of obtaining a two-dimensional image at a time or a line sensor may be used.
- the line sensor and the supporting surface are If the image is repeatedly taken while being relatively moved in a direction perpendicular to the direction of movement, a two-dimensional image of the support surface can be obtained.
- the image of the support surface is formed around the imaging center even if the height of the support surface is different, and the same image is obtained. If the center of the imaging surface is deviated from the imaging center force and the supporting surface is imaged, the distance from the imaging center of the imaging surface to the imaging center varies depending on the height of the supporting surface. Height can be detected.
- the imaging device may be a device that images a support portion that is a portion including at least the support surface of the support pin from a direction perpendicular to the axis of the support pin, or a device that images the support portion obliquely from a direction intersecting with the axis of the support pin.
- the data processing is simple because only the image of the supporting surface is processed, the data processing is simple, and the height of the supporting surface can be detected quickly and easily. it can.
- the printed circuit board support device can be configured simply and inexpensively.
- a first relative movement device that relatively moves the imaging device and the support pin at least in a direction orthogonal to the axis of the support pin, wherein the height detection device includes:
- the first relative movement device and the imaging device are controlled, and the imaging device is provided with a first imaging position at which the imaging center coincides with the center of the support surface of the support pin, and the first imaging position.
- An orthogonal position detector that detects a position of the support pin in a direction orthogonal to the axis thereof based on imaging data obtained by imaging at the first imaging position; an orthogonal position of the support pin; A height detection unit that detects the height of the support surface of the support pin based on imaging data obtained by imaging at the second imaging position.
- the predetermined distance is such that the image of the entire support surface is formed on the imaging surface regardless of the size, shape, and height of the support surface. Desirably set to the distance that is formed U ⁇ .
- the positional shift can be obtained.
- the positional shift of the support pins in the orthogonal direction is detected.
- the height of the support pin can be detected. For example, by controlling the relative movement device based on the displacement of the support pins in the orthogonal direction, it is possible to perform imaging in a state where there is no displacement in the orthogonal direction at the second imaging position, Alternatively, the height of the support surface can be detected by removing the influence of the displacement in the orthogonal direction at the time of processing image data obtained by imaging at the second imaging position.
- the imaging of the support surface at the first imaging position can be omitted, and only the imaging of the support surface at the second imaging position can be omitted. It is possible to detect the height of the support surface.
- the appropriateness of the support pin can be determined based on the magnitude of the height shift.
- the appropriateness of the height of the support surface can be automatically determined and confirmed, and the work of a work machine such as an electronic circuit component mounting machine provided with the printed circuit board support device can be performed. It is possible to automatically check whether the height of the support surface is appropriate before starting.
- the support pin is inappropriate at the height. Regardless of the cause of the force, the propriety of the support pin is determined, and the support pin is determined to be inappropriate. By doing so, it is possible to eliminate the cause of inadequacy and prevent inappropriate support pins at the correct height from being used for supporting the printed circuit board. Interference with the already mounted components already mounted on the board prevents them and the support pins from being damaged, and prevents the printed board from being unable to be supported due to insufficient height.
- the printed circuit board support device including a response processing unit that performs response processing.
- the corresponding processing unit includes, for example, a notification control unit, a support pin replacement control unit, a carry-in prohibition control unit that prohibits carry-in of a printed circuit board into a machine equipped with the print board support device, and the like.
- the inappropriate cause which is the cause of the determination that the support pin is inappropriate
- the work can be eliminated by the operator, or the printing by the print board support device can be performed.
- Appropriate measures can be taken in response to the inappropriate support pins for the work related to supporting the substrate.
- a printed circuit board supporting device having an appropriate height of the supporting surface can be quickly obtained, or an inconvenience occurs in a device including the printed circuit board supporting device based on an inappropriate height of the supporting pins. May be evaded.
- the response processing unit when the propriety determination unit determines that the support pin is an inappropriate support pin in height, controls the notification device, the support pin
- the printed circuit board support device according to the above mode (7) including a notification control unit configured to notify the user of inappropriateness.
- the notification device can be configured in various modes that can be perceived by an operator by using a notification medium such as images such as letters, numbers, symbols, and figures, sound, sound, and light.
- a notification medium such as images such as letters, numbers, symbols, and figures, sound, sound, and light.
- a display device, an audio device, a buzzer, a lamp lighting device, and a blinking device can be provided. Based on the notification from the notification device, for example, the worker can determine the cause of the inappropriate height of the support pin, and can solve the problem or instruct the user to solve the problem.
- a support pin holding device for holding and releasing the support pin
- a second relative movement device that relatively moves the support pin holding device, the pin support member, and the support pin storage device
- a printed circuit board support device according to any one of items (1) to (8), including a support pin change control device to be accommodated in the device.
- the setup change of the support pins can be performed automatically.
- the arrangement force of the support pins can be automatically performed up to the height detection after the arrangement.
- a response processing unit that performs a predetermined response process when the propriety determining unit determines that the support pin is inappropriate
- the corresponding processing unit controls the second relative movement device and the support pin holding device, and exchanges the inappropriate support pin with an appropriate support pin stored in the support pin storage device.
- support pins of different lengths may be used to support a printed circuit board, but the cause of the support pins being determined to be inappropriate in height, e.g., the wrong type of support pins If so, the automatic replacement of the support pin allows the appropriate type of support pin to be quickly attached to the pin support member.
- Improper support pins can be quickly and easily stored in the support pin storage section provided separately from the support pin storage device, or can be automatically retracted by providing a support pin retraction section. You can be evicted.
- FIG. 1 is a plan view showing an electronic circuit component mounting machine provided with a printed circuit board supporting device according to an embodiment of the present invention.
- FIG. 2 is a side view showing a mounting head, a board imaging device, a pin holding unit, and the like of the electronic circuit component mounting machine.
- FIG. 3 is a front view showing the printed board support device and the board transfer device.
- FIG. 4 is a front view showing a support pin and a pin support of the printed board support device.
- FIG. 5 is a block diagram showing a control device for controlling the electronic circuit component mounting machine.
- FIG. 6 is a flowchart showing a support pin height check routine controlled by the control device.
- FIG. 7 is a flowchart showing an inappropriate support pin handling routine controlled by the control device.
- FIG. 8 is a view for explaining imaging of a support surface of the support pin at first and second imaging positions by a mark imaging device.
- FIG. 9 is a diagram illustrating detection of the height of the support surface of the support pin.
- FIG. 1 shows an electronic circuit component mounting machine including a printed circuit board supporting device according to one embodiment of the present invention.
- the mounting head is moved to an arbitrary position in a plane parallel to the surface of the printed circuit board, receives the component supply mounting force, and mounts the electronic circuit component on the printed circuit board.
- the electronic circuit component mounting machine includes a bed 10 as a main body, a board transfer device provided on the bed 10, a printed board support device 14, a component mounting device 16, a component supply device. 18 and a mark imaging system 22, a control device 24 (see FIG. 5) for controlling these devices and the like.
- reference numeral 30 denotes a printed circuit board, and a plurality of, in this embodiment, two reference marks 34 are provided on a mounting surface thereof.
- the component supply device 18 is provided stationary on one side of the substrate transfer device 12 with its position fixed. Since the component supply device 18 is not directly related to the claimed invention, detailed illustration and description are omitted.
- the component mounting apparatus 16 mainly includes a mounting head 50, which is a type of a working head, and a mounting head 50.
- An XY robot 52 as a work head moving device that moves to an arbitrary position in a horizontal plane that is a plane parallel to the mounting surface of the printed circuit board 30, and a mounting head 50 around its axis.
- a head rotating device 56 for rotating the mounting head 50 and a head lifting device 58 for lifting and lowering the mounting head 50 are provided.
- the XY robot 52 includes an X-axis slide 60 as a moving member, an X-axis slide moving device 62, a Y-axis slide 64 as a moving member, and a Y-axis slide moving device 66.
- the X-axis slide moving device 62 includes an X-axis slide drive motor 68, a ball screw 70 which is a kind of feed screw, and a nut (not shown), and moves the X-axis slide 60 in the X-axis direction. Together, they constitute the X-axis moving device 74.
- the Y-axis slide moving device 66 includes a Y-axis slide drive motor 76, a ball screw 78 (see FIG.
- the X-axis direction is one horizontal direction
- the Y-axis direction is within a horizontal plane, and is a direction orthogonal to the X-axis direction.
- the mounting head 50 includes a nozzle holder 90 as a holder holder, and detachably holds a suction nozzle 92 as a component holder.
- the mounting head 50 is moved in the X-axis direction and the Y-axis direction by the XY robot 52, and is moved to an arbitrary position in the horizontal plane, so that the nozzle holder 90 is moved with respect to the component supply device 18 and the print board 30.
- the electronic circuit component (hereinafter abbreviated as “component”) 94 is taken out of the component supply device 18 and mounted on the printed circuit board 30.
- the mounting head 50, the head rotating device 56, and the head lifting / lowering device 58 have the same configuration as the mounting head 50 described in Japanese Patent No. 3093339, and a detailed description thereof will be omitted.
- the mark imaging system 22 is provided on the Y-axis slide 64 together with the mounting head 50 and the like, as shown in FIG.
- the mark imaging system 22 includes a mark imaging device 96 and a lighting device 98, which are a kind of recognition device, is moved by the XY robot 52 together with the mounting head 50 to an arbitrary position in a horizontal plane, and the reference mark 34 is formed. Take an image.
- the mark imaging device 96 is a surface imaging device in the present embodiment, and acquires a two-dimensional image of a subject at once.
- the mark imaging device 96 is configured by, for example, a CCD camera.
- the mark imaging device 96 captures not only the reference mark 34 but also the printed circuit board 30 and support pins, which will be described later. Can be imaged.
- the X-axis slide 60 is provided with a component imaging system 100 as shown in FIG.
- the component imaging system 100 includes a component imaging device 102 (see FIG. 5) and the like, and captures an image of the component 94 held by the suction nozzle 92. Based on the image of the fiducial mark 34, each horizontal position error of a plurality of component mounting points set on the mounting surface of the printed circuit board 30 is calculated, and a suction nozzle obtained based on the image of the component 94 at the time of component mounting. It is corrected together with the holding position error of the part 94 by the part 92.
- the substrate transfer device 12 includes a transfer conveyor 110, as shown in FIG.
- the conveyor 110 has a pair of guide rails 112 and 114 (see FIG. 1) as side frames constituting the main body, a pair of conveyor belts 116 as endless conveying members (only one is shown in FIG. 3), Includes orbiting drive 118 (see Figure 3).
- One of the guide rails 112 and 114 is a fixed rail, and the other is a movable rail.
- the movable rail is moved by a rail moving device (not shown) so that the movable rail approaches and separates from the fixed rail.
- the conveyance width is automatically changed.
- the pair of conveyor belts 116 are respectively attached to the guide rails 112 and 114 so as to be able to rotate, and are rotated by the orbital drive device 118, and the printed circuit board 30 mounted on the upper surface thereof is moved by the guide rails 112 and 114. It is transported in the X-axis direction while being guided by 114.
- the surface including the upper surface of the conveyor belt 116 is the substrate transfer surface 130.
- Each of the guide rails 112 and 114 also pushes the printed circuit board 30 upward on the board transfer surface 130, and the pressing portions 134 provided on each of the guide rails 112 and 114 (the pressing portions provided on the guide rails 114 in FIG. 3).
- a clamp member (not shown) is provided so as to be able to move up and down, and the holding portion 134 and the clamp member constitute a substrate clamping apparatus.
- the printed board support device 14 includes a support pin 150, a pin support 152 as a pin support member, and a support pin elevating device 154, and a transfer path of the printed board 30 by the board transfer device 12.
- the location is fixed in the middle of the process.
- the support pin 150 includes a pedestal 160 forming a mounting portion or a base and a pin 162 forming a support portion, as schematically shown in FIG. 4, and is attached to and detached from the pin support 152 by magnetic force. It is supposed to be fixed as possible . Therefore, a permanent magnet (not shown) is provided in the base 160.
- the pin 162 is erected vertically on the pedestal 160 and is detachably fixed, for example, by screwing.
- the upper surface which is the tip end surface of the pin 162, forms a support surface 166 that supports the printed board 30, and also supports the printed board 30 with a downward force.
- the length of the support pin 150 is adjusted by adjusting the amount of screwing of the pin 162 to the pedestal 160, and the height of the support surface 166 relative to the pin support 152 is adjusted.
- the pin 162 is provided with an annular groove 168 which is opened on the outer peripheral surface thereof, and is provided with an engaging portion 170. In the present embodiment, the adjustment of the height of the support surface 166 is performed when the support surface 166 is worn or the like, and the adjustment amount is small.
- the pin support 152 has at least an upper surface thereof, and a pin mounting surface 174 to which the support pins 150 are mounted is made of a magnetic material such as steel.
- the support pins 150 are provided at arbitrary positions on the pin mounting surface 174. It is detachably fixed and supported by force.
- the permanent magnet and the pin mounting surface 174 which is a pin support surface made of a magnetic material, constitute a support pin fixing device.
- the support pin lifting device 154 uses an air cylinder 178 as a fluid pressure cylinder, which is a type of fluid pressure actuator, as a drive source, and expands and contracts a piston rod 180 to support the pin.
- the table 152 is moved up and down by being guided by the guide device 182, moved to a preset lower end position and a higher end position, and the support pins 150 are moved toward and away from the print substrate 30.
- the support pin lifting / lowering device 154 is also a pin support member lifting / lowering device, and is also an approach / separation device for moving the support pin 150 and the printed circuit board 30 toward and away from each other.
- the lower end position is a position where the support pins 150 attached to the pin support 152 do not interfere with the printed circuit board 30 conveyed by the board conveying device 12 and the components 94 already mounted on the back surface thereof.
- the end position is, as shown in FIG.
- the rising end position is also a substrate supporting position, and is defined, for example, by stopping the rising of the pin support 152 by a stopper (not shown). In the present embodiment, the rising end position is constant regardless of the thickness of the printed circuit board 30. Have been.
- the clamp member is common to a plurality of types of printed circuit boards 30, is engaged with the pin support 152 during the ascent of the pin support 152, is lifted, and clamps the printed circuit board 30 with the holding portion 134. After that, move relative to the pin support 152 and allow the pin support 152 to rise to the rising end position. Accept.
- a support pin storage device 190 is provided adjacent to the printed board support device 14.
- the pin storage device 190 includes a plurality of pin storage portions (not shown), and the plurality of support pins 150 are positioned and stored.
- the height of the pin mounting surface on which the support pin 150 is mounted is the same as the pin mounting surface 174 of the pin support 152 located at the lower end position. It is provided so that
- the Y-axis slide 64 is provided with a pin holding unit 200.
- the pin holding unit 200 includes a holding head 202 as a supporting pin holding device and a holding head lifting / lowering device 204 for lifting / lowering the holding head 202.
- the holding head 202 includes a pin holding member 208 as a support pin holding member, and a claw driving device 212 that opens and closes a pin holding claw 210 as a pair of pin holding members constituting the pin holding member 208. .
- the holding head 202 is moved by the XY robot 52 to an arbitrary position with respect to the pin support 152 in a direction parallel to the pin mounting surface 174 which is a horizontal surface thereof, and is moved by the holding head elevating device 204
- the pin is moved to an arbitrary position in a direction perpendicular to the mounting surface 174, and is moved closer to or away from the pin mounting surface 174.
- the holding head 202 is lowered to the support pin holding / releasing position, and the pair of pin gripping claws 210 are opened and closed by the claw driving device 212 to engage the engaging portions 170 of the support pins 150 to grip the support pins 150. And then release.
- the holding head 202, the holding head elevating device 204, and the like are configured in the same manner as the holding head and the holding head elevating device described in JP-A-2002-50899, and further description is omitted.
- the control device 24 mainly includes a mounting control computer 280 having a CPU 270, a ROM 272, a RAM 274, and a bus connecting them.
- An input / output interface 282 is connected to the bus, and an image processing computer 288, which processes image data obtained by each imaging of the mark imaging device 96 of the mark imaging system 22 and the component imaging device 102 of the component imaging system 100, Mark imaging device 96, parts
- Various sensors such as an imaging device 102, an input device 294, and an encoder 292 are connected.
- the input / output interface 282 is also connected to various actuators and the like constituting a drive source of the substrate transfer device 12 and the like via the drive circuit 300, and is connected to the display screen 304 via the control circuit 302. .
- the motor constituting the drive source is a type of actuator, and in the present embodiment, an electric rotary motor which is a type of electric motor, and is a servo motor capable of controlling the rotation angle with high accuracy. Many are composed of motors. A step motor may be used instead of the servo motor.
- the rotation angles of these servomotors are detected by an encoder serving as a rotation angle detection device, and the motors and the like are controlled based on the detection results.
- FIG. 5 typically shows one of the encoders 292.
- the ROM 272 and the RAM 274 include a basic operation program of the electronic circuit component mounting machine, a component mounting program according to the printed circuit board 30 to be processed (hereinafter, referred to as a component mounting program), and a printed circuit board supporting device.
- Various programs and data such as a program for performing the automatic setup change, a program for checking the height of the support surface 166 of the support pin 150, and the like are stored.
- the printed circuit board 30 is transported by the transport conveyor 110, and is stopped at a preset work position.
- the pin support 152 is lowered to the lower end position.
- the pin support table 152 is raised to the raised end position, and the board clamping device clamps the printed board 30 while supporting the support pins. 150 supports the printed circuit board 30.
- the height of the mounting surface of the printed circuit board 30 at the time of component mounting is determined by the holding portion 134, and is the same even if the type of the printed circuit board 30 is different and the thickness is different, but the height of the supported surface 184 is different.
- the printed circuit board 30 does not necessarily have the same thickness as a whole, but is partially different, and a plurality of support pins 150 may respectively support portions of the printed circuit board 30 having different thicknesses.
- the support pins 150 may support the printed circuit board 30 via the component 94 already mounted on the back surface of the printed circuit board 30, and an end surface protruding from the back surface of the component 94 may constitute a supported surface.
- the pin support 15 2 includes a support pin 150 of a set type, that is, a pin mounting surface 174 of a pin support table 152 moved to a rising end position, at an arrangement position set for each type of the printed circuit board 30, and a board clamping device.
- a support pin 150 having a length equal to the distance between the printed board 30 and the supported surface 184 at the supported location of the printed circuit board 30 is attached. Therefore, the plurality of support pins 150 that support one printed circuit board 30 are all the same type and may be all the same length, or may be different types and have different lengths .
- the setup is also performed on the printed board support device 14, and The support pins 150 attached to the pin support 152 for supporting the printed circuit board 30 are removed and returned to the support pin storage device 190, and the support pins 150 for supporting the printed circuit board 30 are next supported. It is taken out from the pin storage device 190 and attached to the pin support 152. Attachment and removal of these support pins 150 are performed automatically.
- the pin holding unit 200 force according to the support pin storage data set 3 ⁇ 4 Robot 52 Then, the support pins 150 are attached and detached.
- the attachment and detachment of the support pin 150 is already known, for example, from Japanese Patent Application Laid-Open No. 2002-50899, and the description is omitted.
- the arrangement position of the support pins 150 (the position in the direction orthogonal to the axis of the support pins 150)
- the height of the support surface 166 and the height of the support surface 166 are detected, and it is checked whether or not the force is at an appropriate height.
- this check is performed by imaging the support surface 166 of the support pin 150 attached to the pin support 152 with the mark imaging device 96. Imaging is performed at each of two imaging positions for one support pin 150. One is a position where the imaging center, which is the center of the imaging surface of the mark imaging device 96, coincides with the center of the support surface 166 (hereinafter, referred to as a first imaging position), and the other is a first imaging position. Predetermined direction from position, this embodiment Is a position (hereinafter, referred to as a second imaging position) moved a predetermined distance in a direction parallel to the X-axis direction. These first and second imaging positions are positions where there is no horizontal displacement between the mark imaging device 96 and the support pin 150. Here, for the sake of simplicity, it is assumed that there is no error in the position of the mark imaging device 96.
- the horizontal displacement of the support pins 150 that is, the displacement of the arrangement position
- the imaging of the support surface 166 at the second imaging position is obtained.
- the height deviation of the support surface 166 is obtained based on Since the imaging at the second imaging position is performed with the imaging center and the center of the support surface 166 shifted in the X-axis direction, the image of the support surface 166 is formed at a position deviated from the imaging center and the image is formed.
- the formation position (distance from the imaging center) differs depending on the height of the support surface 166.
- the center position of the image of the support surface 166 is obtained, and the distance of the support surface 166 to the mark imaging device 96 is obtained based on the center position.
- the height direction distance that is the distance of the reference force in the height direction of the support surface 166 is detected with respect to the mark imaging device 96 based on the height position of the mark imaging device 96.
- the amount of deviation of the height direction distance from the set height (distance) is obtained, and the support pin attached to the pin support 152 is determined depending on whether the deviation is within a predetermined allowable range. It is determined whether the force is appropriate for the height at 150. The cause of the support pin 150 having an inappropriate height is eliminated.
- step 1 of this routine (hereinafter abbreviated as S1; the same applies to other steps), the support pin arrangement data is read.
- the support pin arrangement data includes the type of the support pin 150 to be arranged, the arrangement position and the arrangement order on the pin support 152, and the like.
- the position of the support pin 150 is set with respect to the center of the support surface 166. According to this position, the position of the support pin 150 in the horizontal XY coordinate plane of the electronic circuit component mounting machine is determined. The expected position for is obtained.
- the height check is performed in the same order as the arrangement order of the support pins 150 on the pin support 152.
- the support pin arrangement data is read out according to the set arrangement order, and in S2, the mark imaging system 22 is moved by the XY robot 52 based on the arrangement position data of the support pin arrangement data read out in S1.
- the mark imager 96 is checked first.
- the support pin 150 is moved to the first imaging position.
- S3 After the movement of the mark imaging device 96, S3 is executed, an imaging command is output to the mark imaging device 96, and the support surface 166 is imaged. At the time of the height check, the pin support 152 is raised to the raised end position, and the support pins 150 are positioned at the same height as when the printed circuit board 30 is supported.
- S4 is executed, an image processing command is issued to the image processing computer 288, and the processed data (data defining the contour of the image of the support surface 166.
- the image processing computer 288 is moved to the center position of the image of the support surface 166). May be calculated in 288) by the mounting control computer 280, and in S5, the displacement of the position of the support pin 150 is calculated.
- imaging is performed in a state where the imaging center and the center of the support surface 166 are expected to coincide with each other. If there is no displacement, the imaging center is shifted as shown in FIG. If the force at which the image of the support surface 166 is formed as the center is misaligned, an image of the support surface 166 is formed near the imaging center, as shown in FIG. 8B. Then, the position of the center Ol is obtained from the data defining the contour of the image of the support surface 166, and if the imaging center and the image center Ol are shifted, the shift amounts ⁇ and ⁇ are calculated, and the arrangement of the support pins 150 is calculated. A positional shift is obtained.
- the image forming position of the support surface 166 on the imaging surface changes according to the height of the support surface 166, and the misalignment of the arrangement position depends on the height. This will include the deviation of the image forming position.
- the imaging at the first imaging position is performed at a position where the center of the support surface 166 and the imaging center are expected to coincide with each other. The displacement of the image forming position caused by the above is small and is ignored. If the displacement of the arrangement position is large, the displacement may be corrected, imaging may be performed again at the first imaging position, and the displacement of the arrangement position may be detected again.
- the displacement amount of the arrangement position is used to determine whether or not the support pin 150 is arranged at an appropriate position in the horizontal direction, to correct the arrangement position, and in the present embodiment, In addition, the height of the support surface 166 is detected by removing the influence of the displacement of the arrangement position. Therefore, the displacement amount of the arrangement position is stored in association with the support pin 150.
- the determination and correction of the appropriateness of the arrangement position of the support pins 150 is already known, for example, from Japanese Patent Application Laid-Open No. H11 195899, and a description thereof will be omitted.
- S6 is executed, and the mark imaging device 96 is moved to the second imaging position. At this time, the mark imaging device 96 is also moved by the above-mentioned arrangement position shift amount. As shown in FIG.
- the imaging surface is moved so that the imaging center is located at a predetermined distance LC away from the center of the actual support surface 166 in the X-axis direction.
- the support surface 166 is imaged in the same manner as when there is no horizontal displacement, and is detected excluding the influence of the height force of the support surface 166 and the displacement of the arrangement position of the support surface 166.
- the predetermined distance is a distance at which an image of the entire support surface 166 is formed on the imaging surface regardless of whether the height of the support surface 166 differs depending on the type of the support pin 150 or the wear of the support surface 166. Selected. Then, S7 is executed in the same manner as in S3, and the support surface 166 is imaged. In S8, an image processing command is output to the image processing computer 288, and the processed image is received by the mounting control computer 280.
- the imaging at the second imaging position is performed in a state where the imaging center and the center of the support surface 166 are separated from each other by a predetermined distance LC in the X-axis direction as shown in FIG. 9A.
- the image of the support surface 166 is formed at a position where the imaging center force on the imaging surface is also distant.
- the image of the support surface 166 is formed at different positions on the imaging surface depending on the height of the support surface 166, and the distance between the center of the image of the support surface 166 and the imaging center increases as the height of the support surface 166 increases. Obtained as if it were.
- This change in distance is caused by at least one of a displacement caused by a difference in type of the support surface 166 due to a difference in length depending on a type of the support pin 150, and a displacement caused by wear or the like due to wear of the support surface 166.
- a displacement caused by a difference in type of the support surface 166 due to a difference in length depending on a type of the support pin 150
- a displacement caused by wear or the like due to wear of the support surface 166 As shown in FIG. 9 (c), when the support surface 166 is displaced above the required height, as shown in FIG. 9 (d), the support surface is located at a position where the imaging center force is farther than when there is no displacement. 166 images are formed. In this embodiment, the distance between the center of the image of the support surface 166 and the center of the image in the imaging plane and the distance (height) of the support surface 166 to the mark imaging device 96 are converted to the set height of the height.
- the support pin 150 is appropriate at the height is determined based on whether or not the deviation is within the allowable range.
- the height of the support surface 166 is detected with reference to the height position of the mark imaging device 96.
- the allowable range of the height shift amount is set to a range in which a shift due to wear or the like, which is a small shift amount, can be detected, and is set in advance for each type of the support pin 166 that is relatively narrow. , Stored in the computer. Below is the setting of the tolerance explain.
- a plurality of types of reference pins made with high accuracy are attached to the set position of the pin support 152, and the pin support 152 is positioned at the rising end position.
- each support surface 166 of the plurality of reference pins is imaged by the mark imaging device 96.
- the reference pin is imaged at the first and second imaging positions, and imaging is performed at the second imaging position in a state where the positional deviation is not included. Then, the center position of each of the images of the plurality of support surfaces 166 obtained by imaging at the second imaging position is obtained for each type of reference pin.
- the length of the reference pin is made with high precision, and the variation in the center of the support surface 166 is caused by an imaging error of the mark imaging device 96 or the like.
- the distance between the center of these images and the imaging center is converted into the height of the support surface 166 with respect to the mark imaging device 96, whereby the cause of the device side, such as the mark imaging device 96, for each of a plurality of types of reference pins is determined.
- the variation in the height of the support surface 166 due to the above is obtained.
- XV is the field of view of the mark imaging device 96 on the plane including the support surface 166 (defined by the length in the X-axis direction)
- LC is the distance between the first and second imaging positions
- V is the mark imaging device.
- 96 reference fields (the field of view of the mark imager 96 on a reference plane, ie, a plane whose distance from the mark imager 96 is the reference distance LP. If the support surface 166 of the support pin 150 is on the reference plane, , The distance force in the X-axis direction between the image center of the support surface 166 and the imaging center in the X-axis direction.)
- L02 is the distance in the X-axis direction between the image center of the support surface 166 and the imaging center (FIG. H) is the height of the support surface 166 with respect to the mark image pickup device 96 (the distance from the mark image pickup device 96 on the plane where the support surface 166 is present).
- the height of the mark imaging device 96 is constant. If the height of the support surface 166 changes, the position where the image of the support surface 166 is formed in the imaging surface changes, and the height of the support surface 166 increases. Indeed, the distance between the center of the image of the support surface 166 and the imaging center is detected as being large, and is larger than the distance on the imaging surface corresponding to the distance LC (represented by b in FIG. 9D). However Actually, even if the height of the support surface 166 changes, the distance from the center of the imaging surface does not change as shown in FIG. As the scale (magnification) increases, the distance between the center of the image on the support surface 166 and the center of the image is recognized to be large.
- the image of the support surface 166 is processed assuming that the imaging surface has the actual height of the support surface 166, that is, the support surface 166 which is related to the height of the plane where the support surface 166 actually exists, is on the reference plane.
- the actual distance L02 corresponding to the distance between the center of the image of the support surface 166 and the imaging center is different from the distance LC, and the difference in the distance is used to determine the plane on which the support surface 166 is located.
- the height is determined, and the height of the support surface 166 is determined.
- the amount of deviation ⁇ H of the height of the support surface 166 is obtained by the following equation.
- LS is a set height (planned height) of the support surface 166 with respect to the mark imaging device 96, and is set for each type of the support pin 150.
- the set height (distance) LS is the distance LP.
- a plurality of height shift amounts are obtained for one type of reference pin, and the height of the support surface 166 is determined based on the variation of the shift amounts and the allowable range of the height shift allowed to occur on the support surface 166.
- the allowable range of height deviation used for height check is set. Even when checking the actual height of the support surface 166, it is considered that the height of the support surface 166 varies due to an imaging error or the like of the mark imaging device 96 as in the case of imaging the reference pin.
- the tolerance of the height deviation for the height check is set such that the actual height of the support surface 166 is reliably or almost guaranteed to be within the tolerance.
- the allowable range of the height deviation allowed to occur on the support surface 166 is ⁇ 0.25 mm
- the height variation of the support surface 166 obtained by imaging the reference pin is ⁇ 0.05 mm.
- the allowable range of height deviation (height position error) used for checking is ⁇ 0.20 mm
- the height deviation of the support surface 166 is surely within the allowable range even if an imaging error occurs. Can be guaranteed.
- This allowable range is preset for each type of support pin 150, that is, for each height of the support surface 166. And stored in association with the type of the support pin 150.
- This allowable range is large enough to detect a displacement caused by wear or the like of the support surface 166, and a type difference displacement larger than the displacement caused by the wear or the like is also detected.
- the height of the support surface 166 of the support pin 150 in this embodiment is adjusted, for example, when the support surface 166 is worn, and the adjustment amount is very small. It is included in the origin shift.
- the center position of the image of the support surface 166 is obtained as in the case of setting the allowable range of the height shift amount based on the imaging of the reference pin.
- the actual distance (the distance in the height direction) of the support surface 166 to the mark imaging device 96 is determined based on the actual distance. Even if the type of the support pin 150 is correct but the height of the support surface 166 is shifted, or if the type is wrong and the height of the support surface 166 is shifted, the actual height of the support surface 166 is determined. Therefore, the amount of deviation of the obtained height from the set height is calculated.
- the determination result of S10 becomes YE S, and S11 is executed, and the height check has been completed for all the support pins 150. It is determined whether or not. If not, the result of the determination in S11 is NO and execution of the routine returns to S1. If the deviation of the height of the support surface 166 exceeds the allowable range, the height of the support pin 150 is inappropriate, the determination result of S10 is NO, and S12 is executed. Data on the support pins 150 is stored in the inappropriate support pin data memory provided in the RAM 274, and is displayed on the display screen 304 to notify the operator.
- the inappropriate support pin data includes, for example, the type, arrangement position, height deviation amount, and the like of the support pin 150.
- carry-in of the printed circuit board 30 is prohibited.
- the carry-in prohibition flag provided in the RAM 274 is set to ON.
- the height of the support surface 166 is detected for all the support pins 150 attached to the pin support 152, and if the height of the support surface 166 is checked for suitability, an inappropriate support pin handling routine shown in FIG. 7 is executed. You. There is an inappropriate support pin 150 in S31 of this routine It is determined whether or not. This determination is made based on, for example, whether data is stored in the inappropriate support pin data memory. If there is no inappropriate support pin 150, the determination result in S31 is NO, and the execution of the routine ends.
- S31 determines whether there is an inappropriate support pin 150.
- S32 is executed.
- the first data Is read.
- S33 is executed to determine whether or not the cause of the improperness is a wrong type of the support pin 150. This determination is made based on, for example, whether or not the amount of height deviation of the support surface 166 detected for the support pin 150 is within a set range.
- This set range is set to an amount that can eliminate a displacement caused by a difference in height of the support surface 166 and eliminates a displacement caused by abrasion or the like, and is set to an amount capable of detecting a displacement caused by a difference in height of the support surface 166.
- S35 is executed, and it is determined whether or not the processing is completed for all the inappropriate support pins. If all of them have not been completed, the determination result in S35 is NO, and the routine returns to S32, the next inappropriate support pin data is read, and the steps from S33 are executed. In addition, when the determination in S33 is performed, the support pin 150 of the wrong type is stored in the memory, and after all the inappropriate support pins 150 have been determined whether the force is the wrong type or not. The support pins 150 may be exchanged at once!
- the operator performs an appropriate process such as adjusting the height of the support pin 150 or removing any foreign matter between the pin support 152 and the pin. If the inappropriate cause is eliminated by replacing the support pin 150, adjusting the height of the support pin 150, or the like, the prohibition of loading the printed circuit board 30 is released. This release is performed, for example, by the operator using the input device 294 to input the prohibition release data. Based on this, the board carry-in prohibition flag is reset to OFF, and the printed circuit board 30 can be carried into the electronic circuit component mounting machine. Also, the inappropriate support pin data memory is cleared. The improper support pin data may be stored in another memory and used as appropriate, for example, as the history of the support pins 150.
- the support pins 150 having an appropriate height are arranged at appropriate positions on the pin support 152, the printed board 30 can be supported without causing damage to the printed board 30 and the like.
- the work of mounting the component 94 on the printed circuit board 30 is well known, and a force to omit description is omitted.
- the occurrence of mounting failure of the component 94 due to the improper support of the printed circuit board 30 is avoided, and the component by the mounting head 50 Mounting work is performed favorably.
- the XY robot 52 and the support pin lifting / lowering device 154 constitute a first relative moving device, and a portion for executing S2, S3, S6, and S7 of the control device 24.
- the part that executes S5 constitutes the orthogonal position detection unit
- the part that executes S9 constitutes the height direction distance detection unit and the height deviation detection unit as the height detection unit
- a height detecting device is configured together with the mark imaging device 96 which is a type of the height detecting head.
- the part of the control device 24 that executes S10 constitutes a propriety determining unit, and the inappropriate support pin data memory forms an inappropriate support pin information storage unit as a support pin information storage unit.
- a portion that controls the display screen 304 and the display screen 304 of the control device 24 to display data and the like constitutes a display device that is a type of a notification device, and a portion that executes S12 and S36 of the control device 24 is provided.
- the part that executes S12 forms the notification control part
- the part that executes S12 forms the carry-in prohibition control part
- the part that executes S34 forms the support pin exchange control part are doing.
- the XY robot 52 and the holding head lifting / lowering device 204 constitute a second relative moving device, which controls the second relative moving device and the pin holding unit 200 when the control device 24 is changed over, so that the pin support base of the support pin 150 is provided.
- the part that removes from the 152, stores it in the support pin storage device 190, removes it, and attaches it to the pin support 152 forms a support pin change control device.
- the robot 52, together with the head lifting / lowering device 58, constitutes a relative moving device for relatively moving the mounting head 50, which is a working head, and a work target material such as a printed circuit board.
- the ⁇ robot 52 which is a part of each, is shared with each other, and the ⁇ robot 52 is also shared with the component mounting device 16, so that the printed circuit board supporting device 14, and eventually the electronic circuit component mounting machine can be easily and cheaply used. Value can be configured.
- the control unit 24 controls the robot 52 and the mark imaging device 96 to image the support surface of the reference pin, and checks the height of the support surface 166 of the support pin 150 based on the image data.
- the part for setting the range constitutes the height deviation allowable range acquisition unit.
- the pin holding unit 200 and the robot 52 constitute a support pin mounting / removing device, and the setup of the printed board support device is automatically changed, and the support pins 150 attached to the pin support 152 by the setup change.
- the height of the support surface 166 is automatically checked, and it is easily and quickly performed, and without any human error as in the case of an operator.
- the reference pin When acquiring the variation of the height of the support surface 166 due to the device side, such as the mark imaging device 96, the reference pin is a height-adjustable pin, and the height of the support surface is set to a plurality of types.
- the support surface at each height may be imaged. In this case, each time the height is changed, the support surface is imaged once, and the image of the support surface is taken as one unit. Obtain multiple detection values of the distance in the vertical direction.
- a height adjustment jig may be provided on the pin support so that the height of the support surface of the reference pin may be different for a plurality of types.
- multiple types of reference pins with different heights are attached to the pin support, one at a time, and the imaging of the support surface is repeated once for each, so that multiple height detection values are acquired. May be.
- the support pin elevating device may use an air cylinder as a drive source or a servomotor as a drive source.
- an air cylinder is used as the drive source, the clamp member sandwiches the printed circuit board between the presser and the clamp, and the pin support stops rising in a clamped state, and the support surface of the support pins corresponds to the thickness of the printed circuit board. It is located at height.
- the reference pin is set to the support pin. Is positioned at the height when supporting the printed circuit board.
- the servo motor when acquiring the variation in the detection of the height of the support surface 166, the pin support is driven by the servo motor so that the rising end position varies depending on the thickness of the printed circuit board.
- the reference pins are positioned at the same height as when the substrate is supported by the support pins.
- the inappropriate support pin handling routine can be a routine in which S33 and S34 are omitted.
- the necessary improper response processing may be performed in S12 of the support pin height check routine.
- the substrate clamping device may be a device that clamps the printed board in a state where the height of the supported surface of the printed board does not change. For example, both edges of the printed circuit board on the belt transport surface of the conveyor belt of the transport conveyor are pressed against a support surface provided upward by a clamp member (from the mounting surface side) opposite to the conveyor belt. And clamp it.
- the height of the mounting surface changes according to the thickness of the printed circuit board, but the height of the supported surface depends on the electronic circuit components already mounted and the printed circuit board via protrusions provided on the back surface. It is the same except for the support case, and support pins of the same length can be used to support the printed circuit board.
- attachment, removal, replacement, and setup change of the support pins may be manually performed by an operator.
- the height of the support surface of the support pin is adjusted according to the thickness of the supported portion of the printed circuit board supported by the support pin, and a plurality of types having different lengths depending on the height adjustment.
- Support Pi May be obtained.
- the wrong type of support pin is no longer a cause of the improper support pin, and the height deviation exceeds the set range wider than the allowable range used for height check. It is presumed that the cause is an error in height adjustment, and the height adjustment by the operator can provide a support pin with an appropriate length.
- the distance between the center of the image of the support surface and the imaging center is converted into the distance of the support surface to the mark image pickup device, and the height direction distance of the support surface is detected.
- the set distance of the support surface and the allowable range of the height deviation with respect to the image pickup device are converted into the distance and the allowable range on the image pickup surface, and the height of the support surface is checked. Is also good. This conversion can be performed using the formula for calculating the height H in the above embodiment.
- the printed circuit board supporting device can be configured simply and inexpensively, but may be configured separately.
- the present invention is not limited to the XY robot type electronic circuit component placement machine in which the placement head is moved by the XY robot, and at least one placement head pivots around a common pivot axis.
- the present invention can be applied to an electronic circuit component mounting machine of a rotating head type and a board working machine other than the electronic circuit component mounting machine, for example, a printed board supporting device such as a screen printing machine, an adhesive coating machine, and a mounting inspection machine. it can.
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Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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JP2006512806A JP4516567B2 (ja) | 2004-04-30 | 2005-04-27 | プリント基板支持装置 |
US11/587,353 US7587814B2 (en) | 2004-04-30 | 2005-04-27 | Printed-board supporting apparatus |
CN2005800220053A CN1977577B (zh) | 2004-04-30 | 2005-04-27 | 印刷基板支撑设备 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004136088 | 2004-04-30 | ||
JP2004-136088 | 2004-04-30 |
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WO2005107354A1 true WO2005107354A1 (ja) | 2005-11-10 |
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PCT/JP2005/008001 WO2005107354A1 (ja) | 2004-04-30 | 2005-04-27 | プリント基板支持装置 |
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US (1) | US7587814B2 (ja) |
JP (1) | JP4516567B2 (ja) |
CN (1) | CN1977577B (ja) |
WO (1) | WO2005107354A1 (ja) |
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Also Published As
Publication number | Publication date |
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JP4516567B2 (ja) | 2010-08-04 |
JPWO2005107354A1 (ja) | 2008-03-21 |
CN1977577A (zh) | 2007-06-06 |
CN1977577B (zh) | 2010-04-14 |
US7587814B2 (en) | 2009-09-15 |
US20070218737A1 (en) | 2007-09-20 |
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