WO2015087420A1 - 部品実装装置 - Google Patents
部品実装装置 Download PDFInfo
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- WO2015087420A1 WO2015087420A1 PCT/JP2013/083256 JP2013083256W WO2015087420A1 WO 2015087420 A1 WO2015087420 A1 WO 2015087420A1 JP 2013083256 W JP2013083256 W JP 2013083256W WO 2015087420 A1 WO2015087420 A1 WO 2015087420A1
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- WIPO (PCT)
- Prior art keywords
- component
- height
- mounting
- nozzle
- suction
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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
- H05K13/081—Integration of optical monitoring devices in assembly lines; Processes using optical monitoring devices specially adapted for controlling devices or machines in assembly lines
- H05K13/0812—Integration of optical monitoring devices in assembly lines; Processes using optical monitoring devices specially adapted for controlling devices or machines in assembly lines the monitoring devices being integrated in the mounting machine, e.g. for monitoring components, leads, component placement
Definitions
- the present invention relates to a component mounting apparatus.
- a component mounting apparatus is known.
- Such a component mounting apparatus is disclosed, for example, in Japanese Patent Laid-Open No. 2004-71641.
- the above-mentioned Japanese Patent Laid-Open No. 2004-71641 has a mounting head including a suction nozzle for suctioning a component and mounting the component on the substrate, a height detector for measuring the height of the component extraction portion of the component supply cassette, and the substrate
- the components are attracted to the mounting head based on the measured height of the warp detector for measuring the warp of the component supply cassette and the measured part removal portion of the component supply cassette, and the mounting height of the mounting head is adjusted based on the warp of the substrate.
- a component mounting apparatus is disclosed that includes a control unit that performs control.
- the height detector measures the height of the component pickup portion of the component supply cassette, the height of the component pickup portion for each component supply cassette varies. Even in the case where there is a problem, it is possible to adjust the suction height. However, there is a disadvantage that it is difficult to lower the suction nozzle to the correct suction height position if the height of each component to be supplied varies. Further, in the component mounting apparatus disclosed in JP-A-2004-71641, the height of the position of the representative point portion of the substrate is measured in order to detect the warp of the substrate. Height may not be measured. For this reason, there is a disadvantage that it is difficult to lower the suction nozzle to the correct mounting height position. As a result of these, there is a problem that it is difficult to perform accurate suction and mounting of parts.
- the present invention has been made to solve the above-described problems, and one object of the present invention is to provide a component mounting apparatus capable of performing accurate suction and mounting of components. .
- a component mounting apparatus includes a nozzle for sucking a component, and a mounting head for mounting the component on a substrate, and the height or horizontal direction of the component suction position in the horizontal direction.
- the height measurement unit for measuring the height of the component mounting position in the case, and the nozzle at the component suction position based on the height measured by the height measurement unit at the suction height position or the component mounting position
- a control unit that performs control to lower to a mounting height position at which mounting is performed.
- the height measuring unit measures the height of the component suction position in the horizontal direction or the height of the component mounting position in the horizontal direction;
- a control unit is provided to control to lower the nozzle to a mounting height position where component suctioning is performed at component suction positions or at a component mounting position based on the measured height.
- the nozzle can be lowered to the accurate mounting height position.
- suction and mounting of components can be performed with high accuracy.
- the above-described effects are particularly effective for a component mounting apparatus that sucks and mounts minimal components that require high suction accuracy.
- the nozzle can be lowered to the accurate suction height position, it is possible to suppress the suction error of the component due to the insufficient descent of the nozzle and to suppress the breakage of the component due to the excessive descent of the nozzle.
- the nozzle can be lowered to the correct mounting height position, it is possible to suppress the mounting error of the component due to the insufficient descent of the nozzle and to suppress the breakage of the component due to the excessive descent of the nozzle.
- the height measurement unit is disposed in the vicinity of the nozzle of the mounting head. According to this structure, the height of the pinpoint position at which the nozzle is lowered can be accurately measured by the height measuring unit disposed in the vicinity of the nozzle.
- a plurality of nozzles are provided, and a plurality of height measurement units are provided for each of the plurality of nozzles.
- the height measurement unit provided for each nozzle can accurately measure the height of the pinpoint position at which each nozzle descends.
- the height measurement unit is configured to measure the height of the component suction position every suction of the component by the nozzle, every lot of the component, or periodically. ing.
- the height of the part suction position can be measured each time the parts are sucked by the nozzle, and the parts can be sucked with high accuracy.
- the height of the part is substantially constant, measuring the height of the part suction position for each part rod or periodically makes the measurement process simpler than when measuring the height each time.
- the components can be suctioned with high accuracy.
- control unit controls the lower end surface of the nozzle to be lowered to the suction height position set on the suction surface of the component based on the height of the component suction position measured by the height measurement unit. Is configured to do. According to this structure, it is possible to reliably suck the component based on the measured height of the component suction position.
- the height measurement unit is configured to measure the height of the component mounting position every mounting of the component on the substrate by the nozzle or periodically.
- the height of the component mounting position is measured every time the component is mounted on the substrate by the nozzle, and the component is accurately measured. It can be implemented.
- the height of the component mounting position is periodically measured, which is a measurement process compared to when the height is measured each time. The components can be accurately mounted on the substrate while being simplified.
- control unit sets the lower end surface of the nozzle at the mounting height position set above the substrate by the height of the component based on the height of the component mounting position measured by the height measuring unit. It is configured to perform control to lower it. According to this structure, the component can be reliably mounted on the substrate based on the height of the measured component mounting position.
- the height measurement unit measures the height of the component suction position or the height of the component mounting position while lowering the nozzle. It is configured to According to this structure, since the height is measured while lowering the nozzle, the tact time of the component suction process or the component mounting process can be shortened.
- the mounting head is configured to be movable in the horizontal direction, and the control unit is in the horizontal direction compared to the height measurement unit provided in the nozzle for sucking a component. Control to measure the height of the suction position of the component by the height measurement unit close to the component to be suctioned, and the height measurement unit provided on the nozzle for mounting the component. When there is a height measurement unit closer to the component mounting position in the horizontal direction than the horizontal direction, at least one of control to measure the height of the component mounting position is performed by the height measurement unit closer to the component mounting position.
- the height measuring unit close to the component suction position or the component mounting position in the horizontal direction. Further, since the height of the component suction position or the height of the component mounting position can be measured by the height measuring unit even during other operations, the tact time of the component suction process or the component mounting process can be shortened.
- suction and mounting of parts can be performed with high accuracy.
- FIG. 2 is a block diagram showing a control configuration of the component mounting apparatus according to the first embodiment of the present invention. It is a figure for demonstrating measurement of the component upper surface height used as the to-be-sucked surface in the component mounting position which adsorb
- the component mounting apparatus 100 mounts the component 4 on the substrate 2 at a predetermined work position with the substrate 2 being transported from the X2 direction side to the X1 direction side by the pair of conveyors 11. It is.
- the component mounting apparatus 100 controls the base 1, the pair of conveyors 11, the head unit 12, the support section 13, the Y direction rail section 14, and the component imaging apparatus 15.
- a device 16 (see FIG. 2).
- the component supply part 3 for supplying the components 4 is arrange
- a plurality of tape feeders 3a are arranged.
- the head unit 12 has functions of acquiring (sucking) the component 4 from the tape feeder 3 a and mounting (mounting) the component 4 on the substrate 2 on the conveyor 11.
- the tape feeder 3a holds a reel (not shown) around which a tape 41 (see FIG. 4) holding a plurality of components 4 at a predetermined interval is wound.
- the tape feeder 3a is configured to supply the component 4 from the front end of the tape feeder 3a to a nozzle 123 described later by rotating the reel and sending out the tape 41 holding the component 4.
- the component 4 is, for example, a small electronic component such as an IC, a transistor, a capacitor, and a resistor. Further, the component 4 includes electronic components of a minimal size (for example, each side is 1 mm or less in size).
- the tape 41 includes a component holding portion 42 and an engagement portion 43, as shown in FIG.
- the component holding portion 42 is formed in the shape of a pocket, and the component 4 is housed with the attracted surface facing outward.
- the engagement portion 43 is configured to engage with a sprocket (not shown) of the tape feeder 3a.
- the tape 41 is delivered by the rotation of the sprocket of the tape feeder 3a.
- the pair of conveyors 11 have a function of transporting the substrate 2 in the horizontal direction (X direction). Further, the conveyor 11 is configured to hold the substrate 2 being conveyed in a state of being stopped at the mounting operation position.
- the head unit 12 includes a ball nut 121, six heads 122, six nozzles 123 (see FIG. 3) attached to the tips of the six heads 122, and a substrate recognition camera. 124, six height measurement units 125 provided on the six heads 122, six R-axis motors 126 (see FIG. 2) provided on the six heads 122, and six heads 122. And six Z-axis motors 127 (see FIG. 2) provided respectively.
- the head 122 is an example of the “mounting head” in the present invention.
- the head unit 12 is configured to be movable in the X direction along the support portion 13.
- the support portion 13 has a ball screw shaft 131, an X-axis motor 132 for rotating the ball screw shaft 131, and a guide rail (not shown) extending in the X direction.
- the head unit 12 is moved in the X direction together with the ball nut 121 with which the ball screw shaft 131 is engaged (screwed).
- the six heads 122 are arranged in line along the X direction on the lower surface side (the Z1 direction side) of the head unit 12.
- Nozzles 123 are attached to the tips (ends in the Z1 direction) of the heads 122, respectively.
- the nozzle 123 is configured to be able to adsorb and hold the component 4 supplied from the tape feeder 3a by negative pressure generated at the tip of the nozzle 123 by a negative pressure generator (not shown). ing.
- the nozzles 123 are detachably attached to the head 122, respectively. That is, the nozzle 123 is configured to be selected and attached to the head 122 in accordance with the component 4 to be mounted.
- Each head 122 (nozzle 123) is configured to be movable up and down (moving in the Z-axis direction) with respect to the head unit 12. Specifically, the head 122 can move up and down between the lowered position when suctioning or mounting (mounting) the component 4 and the raised position when transporting or photographing the component 4 Is configured. Further, the head 122 is configured to be individually driven to move up and down by a Z-axis motor 127 provided for each head 122. The head 122 is configured to be rotatable around the central axis of the nozzle 123 (about the Z axis) by an R-axis motor 126 provided for each head 122.
- the substrate recognition camera 124 is configured to capture a fiducial mark (not shown) of the substrate 2. Thereby, it is possible to accurately acquire the component mounting position in the horizontal direction (XY direction) of the substrate 2. Further, the camera 124 is configured to be capable of photographing the component 4 located at the component supply position (component suction position) in the horizontal direction of the tape feeder 3a. Thereby, it is possible to acquire the horizontal position and posture of the component 4 to be suctioned.
- the height measurement unit 125 is configured to measure the height of the position at which the head 122 (nozzle 123) is lowered.
- one height measurement unit 125 (six in total) is provided for every six nozzles 123 (heads 122).
- the height measurement unit 125 includes, for example, a PSD (Position Sensitive Detector). That is, the height measuring unit 125 reflects the light emitted from the light source at the position where the head 122 (nozzle 123) is lowered (the component suction position or the component mounting (mounting) position), and receives the light by the PSD. The height (distance) at the position where the head 122 (nozzle 123) is lowered in the horizontal direction (XY direction) is measured.
- PSD Position Sensitive Detector
- the height measuring unit 125 irradiates light (spots 123a) onto the component 4 based on the image of the component 4 of the tape feeder 3a taken by the substrate recognition camera 124, and measures the height (distance) It is configured to That is, the height of the position at which the component 4 is actually attracted is measured.
- the area of the spot 123 a of the light emitted from the light source of the height measurement unit 125 is at least smaller than the opening area of the component storage unit 42 of the tape 41.
- the area of the spot 123 a is smaller than the area of the attracted surface of the component 4.
- the height measurement unit 125 is configured to measure the height of the component suction position or the height of the component mounting (mounting) position as the height at which the nozzle 123 is lowered in the horizontal direction (XY direction). ing. Further, the height measuring unit 125 is disposed in the vicinity of the nozzle 123 of the head 122. Specifically, the height measurement unit 125 is disposed in the vicinity of the root of the head 122. The height measurement unit 125 is fixed to the head unit 12 and is configured not to move in the vertical direction (Z direction).
- the height measurement unit 125 is configured to measure the height of the component suction position every suction of the component 4 by the nozzle 123, every lot of the component 4 or periodically. In the case where the height of the component suction position is periodically measured, for example, the height measuring unit 125 may perform every predetermined time, every predetermined number of suction of the component 4, or every substrate 2 on which the component 4 is mounted Measure the height of the component suction position. Further, as shown in FIG. 3, the height measurement unit 125 measures the height to the attracted surface of the component 4 in a state where the nozzle 123 (head 122) is moved in parallel to the component adsorption position (moved in the X and Y directions).
- h1 the distance from the nozzle reference position to the attracted surface of the component 4
- the height (distance) to the surface to be attracted of the component 4 is indicated by h1 to h5 in FIG. 3 due to the thickness error of the component 4 and the state of the component storage portion 42 of the tape 41 (see FIG. 4). As such, they may be different (not constant) from one another. That is, the suction height position of the component 4 (the position in the Z direction with respect to the nozzle reference position) based on the height (distance) measured by the height measurement unit 125 may be different for each component 4.
- the height measurement unit 125 is configured to measure the height of the component mounting (mounting) position every mounting of the component 4 on the substrate 2 by the nozzle 123 or periodically. Specifically, as shown in FIG. 5, the height measuring unit 125 mounts the component 4 in a state where the nozzle 123 (head 122) is horizontally moved (moved in the X and Y directions) to the component mounting (mounting) position. The height h11 (the distance from the nozzle reference position to the mounting position 2a on the substrate 2) to the mounting surface of the substrate 2 to be mounted (mounted) is measured. In addition, due to the warpage of the substrate 2, the height (distance) to the mounting surface may be different (not constant) depending on the XY position of the substrate 2.
- the mounting height position of the component 4 (the position in the Z direction with respect to the nozzle reference position) based on the height (distance) measured by the height measuring unit 125 is different for each mounting position (the position in the XY direction) There is.
- the height measuring unit 125 is configured to measure the height (distance) of the position (component suction position or component mounting position) at which the nozzle 123 is lowered in the horizontal direction (XY direction) while lowering the nozzle 123. It is done. Specifically, the height measuring unit 125 lowers the nozzle 123 while lowering the nozzle 123 in a state where the nozzle 123 (head 122) is positioned at a component suction position or a component mounting (mounting) position (XY position). It is configured to measure the height (distance) of the position (the component suction position or the component mounting position).
- the support portion 13 is configured to be movable in the Y direction orthogonal to the X direction along the pair of Y direction rail portions 14 fixed on the base 1.
- the Y-direction rail portion 14 has a guide rail 141 for movably supporting both end portions (X direction) of the support portion 13 in the Y direction, and a ball screw shaft 142 extending in the Y direction. And a Y-axis motor 143 for rotating the ball screw shaft 142.
- the support portion 13 is provided with a ball nut 133 with which the ball screw shaft 142 is engaged (screwed).
- the head unit 12 is moved on the base 1 along the Y direction.
- the head unit 12 can move on the base 1 along the XY plane to any position.
- the component imaging device 15 is fixedly installed on the upper surface of the base 1. Further, the component imaging device 15 is configured to image the component 4 absorbed by the nozzle 123 in order to recognize the adsorption state of the component 4 prior to the mounting of the component 4.
- the component imaging device 15 also includes a bottom camera 15a and a side camera 15b.
- the bottom camera 15a is configured to photograph the component 4 adsorbed by the nozzles 123 of each head 122 from the lower side. Thereby, it is possible to acquire the suction posture (the rotation posture and the suction position with respect to the nozzle 123) of the component 4.
- the side camera 15 b is configured to photograph the component 4 adsorbed by the nozzles 123 of each head 122 from the side thereof. Thereby, it is possible to acquire the height (thickness) t1 (see FIG. 5) of the component 4 in the Z direction.
- the control device 16 is mounted on the component mounting apparatus 100 with a computer as a component.
- the control device 16 performs drive control of the X-axis motor 132, the Y-axis motor 143, the R-axis motor 126, and the Z-axis motor 127 according to a program stored in advance to perform mounting work of the component 4 on the substrate 2. It is configured. Specifically, the control device 16 moves the head unit 12 above the component supply unit 3 (tape feeder 3a) and causes the nozzles 123 of the heads 122 to suck the component 4.
- the control device 16 moves the head unit 12 onto the substrate 2.
- the component imaging device 15 picks up the components 4 adsorbed by the nozzles 123 of the heads 122 with the head unit 12 passing above the component imaging device 15.
- the component mounting (mounting) position correction which is adsorbed to each head 122 (nozzle 123) is performed based on the photographed image.
- the heads 122 are moved up and down, and the component 4 absorbed by stopping supply of the negative pressure to the nozzles 123 at a predetermined timing is on the substrate 2. Mounted (mounted).
- the control device 16 is configured to perform control to lower the nozzle 123 based on the height measured by the height measurement unit 125. Specifically, as shown in FIG. 3, the control device 16 sucks the component 4 at the component suction position (position in the X and Y directions) based on the height (distance) measured by the height measurement unit 125. It is configured to perform control to lower to the suction height position (the position in the Z direction with respect to the nozzle reference position) at which to perform. That is, based on the height of the component suction position measured by the height measurement unit 125, the control device 16 controls to lower the lower end surface of the nozzle 123 to the suction height position set on the suction surface of the component 4. Is configured to do.
- the control device 16 mounts the component 4 at the component mounting position (position in the X and Y directions) of the nozzle 123 based on the height measured by the height measuring unit 125. It is configured to perform control to lower (a position in the Z direction with respect to the nozzle reference position). That is, the controller 16 controls the lower end face of the nozzle 123 from the substrate 2 based on the height of the component mounting (mounting) position (height of the mounting position 2a on the substrate 2) measured by the height measuring unit 125. It is configured to perform control to lower to the mounting height position which is set above the height of the component 4 (for example, t1).
- step S1 the head 122 (nozzle 123) is horizontally moved in the X and Y directions to a position for suctioning the component 4 (component suction position). That is, among the six heads 122, the head 122 for suctioning the component 4 is moved above the tape feeder 3a for supplying the component 4 to be suctioned.
- step S2 the height (distance) to the attracted surface of the component 4 is measured.
- step S3 the head 122 (nozzle 123) is lowered based on the height (distance) to the attracted surface measured by the height measurement unit 125. That is, the head 122 (nozzle 123) is lowered to a height position (position in the Z direction) (adsorption height position) where the tip of the nozzle 123 abuts on the attracted surface of the component 4.
- the lowering operation of the head 122 (nozzle 123) may be performed in parallel with the measurement of the height to the attracted surface in step S2. That is, while lowering the head 122 (nozzle 123), the height (distance) to the attracted surface of the component 4 may be measured. In this case, the measurement of the suction height may be completed before the lower end of the nozzle 123 reaches the suction surface of the component 4.
- step S4 a negative pressure is supplied to the nozzle 123 in a state of being in contact with the component 4, and the component 4 is attracted to the nozzle 123.
- step S5 the head 122 (nozzle 123) which has attracted the component 4 is raised.
- step S6 it is determined whether suction of all parts has been completed. That is, it is determined whether or not the component 4 is adsorbed to all the heads 122 (nozzles 123) for adsorbing the component 4 according to the mounting program. For example, it is determined whether or not the component 4 is attracted to all of the six heads 122 (nozzles 123). If suction of all parts is completed, the part suction process is ended. If the suction of all parts has not been completed, the process returns to step S1 to execute a part suction process by the next head 122 (nozzle 123).
- step S11 a suction posture image of the bottom surface of the component 4 is acquired (captured). Specifically, the head 122 (nozzle 123) which has attracted the component 4 is moved above the component imaging device 15. Then, the component 4 attracted to the nozzle 123 is imaged from the lower side (Z1 direction side) by the bottom camera 15a of the component imaging device 15. Further, in parallel with step S11, in step S12, a suction posture image of the side surface of the component 4 is acquired (captured). Specifically, the side camera 15b of the component imaging device 15 picks up an image of the component 4 absorbed by the nozzle 123 from the side surface. Thereby, the height (thickness) t1 in the Z direction of the sucked component 4 is acquired. The processes in steps S11 and S12 are sequentially performed on all of the components 4 adsorbed by the plurality of heads 122 (nozzles 123).
- step S13 the head 122 (nozzle 123) is moved in an XY direction to a position (component mounting position) at which the component 4 is mounted (mounted). That is, among the six heads 122, the head 122 for mounting the component 4 is moved above the position of the substrate 2 for mounting the component 4.
- step S14 the height (distance) to the mounting (mounting) surface on the substrate 2 is measured.
- step S15 the head 122 (nozzle 123) based on the height h11 to the mounting (mounting) surface measured by the height measurement unit 125, and the height (thickness) t1 of the acquired component 4 in the Z direction. Is lowered. That is, the head 122 (nozzle 123) is lowered to such a height that the bottom surface of the component 4 sucked by the nozzle 123 abuts on the mounting position of the substrate 2. In other words, the lower end surface of the nozzle 123 is lowered to a mounting height position (position in the Z direction) set up by the height (thickness) of the component 4 from the mounting surface of the substrate 2.
- the lowering operation of the head 122 may be performed in parallel with the measurement of the height (distance) to the mounting surface in step S14. That is, the height to the mounting surface of the component 4 may be measured while lowering the head 122 (nozzle 123). In this case, the measurement of the height to the mounting surface may be completed before the component 4 reaches the mounting position of the substrate 2. After the bottom surface of the component 4 abuts on the mounting position of the substrate 2, the negative pressure supply is stopped and the component 4 is mounted (mounted) on the substrate 2.
- step S16 the head 122 (nozzle 123) ascends in the Z-axis direction and is retracted with respect to the substrate 2 and the mounted component 4.
- step S17 it is determined whether the mounting (mounting) of all the components is completed. That is, it is determined whether or not all the components 4 of the head 122 (nozzles 123) having adsorbed the components 4 are mounted (mounted) on the substrate 2 according to the mounting program. If mounting of all parts is completed, the part mounting process is ended. If mounting of all parts has not been completed, the process returns to step S11, and part mounting processing by the next head 122 (nozzle 123) is executed.
- the component suction process shown in FIG. 6 is performed according to the mounting program. That is, the component suction process (steps S1 to S6) of FIG. 6 and the component mounting process (steps S11 to S17) of FIG. 7 are repeated until a predetermined number of components 4 are mounted on the substrate 2.
- the height measurement unit 125 measures the height of the component suction position in the horizontal direction (XY direction) or the height of the component mounting position in the horizontal direction, and the height measurement unit 125 At the suction height position (position in the Z direction) where component suction is performed at the component suction position with the nozzle 123 based on the measured height or at the mounting height position (position in the Z direction) where component mounting is performed at the component mounting position
- the component 4 is disposed at the position to which the nozzle 123 is actually lowered even if the height of each component 4 varies.
- the nozzle 123 can be lowered to the accurate suction height position.
- the height position of the substrate 2 at the position where the nozzle 123 is actually lowered is measured by pinpointing, so the nozzle 123 can be lowered to the correct mounting height position. .
- suction and mounting (mounting) of the component 4 can be performed with high accuracy.
- the above-described effects are particularly effective for the component mounting apparatus 100 that sucks and mounts a minimal component that requires high suction accuracy.
- the nozzle 123 can be lowered to an accurate suction height position, suction error of the component 4 due to insufficient descent of the nozzle 123 can be suppressed and damage to the component 4 due to excessive descent of the nozzle 123 can be suppressed. Can. In addition, since the nozzle 123 can be lowered to the accurate mounting (mounting) height position, mounting (mounting) errors of the component 4 due to the insufficient lowering of the nozzle 123 can be suppressed, and the component 4 due to excessive lowering of the nozzle 123 Damage to the
- the height measurement unit 125 is disposed in the vicinity of the nozzle 123 of the head 122.
- the height of the position of the pin point at which the nozzle 123 is lowered can be accurately measured by the height measurement unit 125 disposed in the vicinity of the nozzle 123.
- a plurality of height measurement units 125 are provided for each of the plurality of nozzles 123.
- the height measurement unit 125 provided for each nozzle 123 can accurately measure the height of the position of the pin point at which each nozzle 123 descends.
- the height measuring unit 125 measures the height of the component suction position every suction of the component 4 by the nozzle 123, every lot of the component 4, or periodically. Configure as. As a result, when the height of the component 4 varies, the height of the component suction position can be measured every time the component 4 is suctioned by the nozzle 123, and the component 4 can be suctioned accurately. In addition, when the height of the part 4 is substantially constant, the height of the part suction position is measured for each lot of the part 4 or periodically, and the measurement processing is performed compared to the case where the height is measured each time. It is possible to suck the component 4 with high accuracy while simplifying it.
- the control device 16 sets the lower end surface of the nozzle 123 to the attracted surface of the component 4 based on the height of the component suction position measured by the height measurement unit 125. It is configured to perform control to lower to the set suction height position (position in the Z direction with respect to the nozzle reference position). Thereby, the component 4 can be reliably adsorbed based on the measured height of the component adsorption position.
- the height of the component mounting position is measured every time the component 123 is mounted on the substrate 2 by the nozzle 123 Component 4 can be mounted well.
- the height of the component mounting position is measured periodically, as compared to when the height is measured each time The component 4 can be mounted on the substrate 2 with high accuracy while simplifying the process.
- control device 16 is configured to mount the lower end surface of the nozzle 123 from the substrate 2 based on the height of the component mounting (mounting) position measured by the height measuring unit 125 It is configured to perform control to lower to the mounting height position (position in the Z direction with respect to the nozzle reference position) set to the height of 4 above. As a result, the component 4 can be reliably mounted (mounted) on the substrate 2 based on the measured height of the component mounting position.
- the height measurement unit 125 is configured to measure the height of the component suction position or the height of the component mounting position while lowering the nozzle 123.
- the height is measured while the nozzle 123 is lowered, so that the tact time of the component suction process or the component mounting process can be shortened.
- a component mounting apparatus 100 according to a second embodiment of the present invention will be described with reference to FIGS. 8 and 9.
- the second embodiment differs from the first embodiment in the configuration in which the height of a component suction position or the height of a component mounting position is measured by a height measurement unit provided in a head for suctioning or mounting a component, A configuration will be described in which the height of the component suction position or the height of the component mounting position is measured by the height measuring unit close to the component suction position or the component mounting position.
- the control device 16 measures the height measuring unit 125 closer to the component 4 to be adsorbed in the horizontal direction (XY direction) than the height measuring unit 125 provided to the nozzle 123 for adsorbing the component 4.
- the height measurement unit 125 close to the component 4 to be suctioned is configured to perform control to measure the height (distance) at the component suction position (the position in the XY direction). For example, as shown in FIG. 8, when performing suction operation of the component 4c by the nozzle 123c, in order to suction the component 4a by the nozzle 123b, the height measuring unit 125a near the component 4a The height h6 to the suction surface is measured.
- the nozzle 123b is moved above the component 4a and the measured height h6 , The nozzle 123b is lowered.
- the control device 16 is closer to the mounting position when there is a height measuring unit 125 closer to the component mounting position in the horizontal direction (XY direction) than the height measuring unit 125 provided on the nozzle 123 mounting the component 4
- the height measurement unit 125 is configured to perform control to measure the height of the component mounting position. For example, as shown in FIG. 9, when the height measuring unit 125a passes above the mounting position 2a during XY movement of the nozzle 123c to the mounting (mounting) position 2a of the component 4, mounting (mounting)
- the height h12 to the surface is configured to be measured by the height measurement unit 125a.
- step S21 the head 122 (nozzle 123) is horizontally moved in the X and Y directions to a position for suctioning the component 4 (component suction position). That is, among the six heads 122, the head 122 for suctioning the component 4 is moved above the tape feeder 3a for supplying the component 4 to be suctioned.
- step S22 a position at which the suction height (distance) (the height to the suction surface of the component 4) is to be measured is set.
- height measurement units 125 for measuring the suction height (distance) are set (plural, single or none). For example, in the case of the example shown in FIG. 8, the suction height at the position of the component 4a is measured by the height measurement unit 125a, and the suction height at the position of the component 4c is measured by the height measurement unit 125c. .
- step S23 it is determined whether to measure the suction height (distance). Specifically, in step S22, it is determined whether there is one or more height measurement units 125 that measure the suction height. For example, when the head 122 (nozzle 123) for adsorbing the component 4 is located at a place other than the component adsorption position (for example, when the component 4 is adsorbed by another head 122 (nozzle 123)) If the suction height (distance) has already been measured by the height measurement unit 125 near the component suction position, there is no need to measure the suction height at the component suction position. In this case, if it is not necessary to measure the adsorption height (distance) at other positions, the adsorption height is not measured. When measuring adsorption
- step S24 the suction height (distance) to the suction surface of the component 4 is measured. That is, in step S22, the suction height (distance) is measured by one or more height measurement units 125 set to measure the suction height.
- step S25 the head 122 (nozzle 123) is lowered based on the suction height measured by the height measurement unit 125. That is, the head 122 (nozzle 123) is lowered to a height position (position in the Z direction) (adsorption height position) where the tip of the nozzle 123 abuts on the attracted surface of the component 4.
- the lowering operation of the head 122 (nozzle 123) may be performed in parallel with the measurement of the height to the attracted surface in step S24.
- the height (distance) to the attracted surface of the component 4 may be measured.
- the measurement of the suction height may be completed before the tip of the nozzle 123 reaches the suction surface of the component 4.
- step S26 a negative pressure is supplied to the nozzle 123 in a state of being in contact with the component 4, and the component 4 is adsorbed to the nozzle 123.
- step S27 the head 122 (nozzle 123) having suctioned the component 4 is raised.
- step S28 it is determined whether suction of all parts has been completed. That is, it is determined whether or not the component 4 is adsorbed to all the heads 122 (nozzles 123) for adsorbing the component 4 according to the mounting program. For example, it is determined whether or not the component 4 is attracted to all of the six heads 122 (nozzles 123). If suction of all parts is completed, the part suction process is ended. If suction of all parts has not been completed, the process returns to step S21, and a part suction process is performed by the next head 122 (nozzle 123).
- step S31 a suction posture image of the bottom surface of the component 4 is acquired (captured). Specifically, the head 122 (nozzle 123) which has attracted the component 4 is moved above the component imaging device 15. Then, the component 4 attracted to the nozzle 123 is imaged from the lower side (Z1 direction side) by the bottom camera 15a of the component imaging device 15. Further, in parallel with step S31, in step S32, a suction posture image of the side surface of the component 4 is acquired (captured). Specifically, the side camera 15b of the component imaging device 15 picks up an image of the component 4 absorbed by the nozzle 123 from the side surface. As a result, the height (thickness) t2 (see FIG. 9) of the sucked component 4 in the Z direction is obtained.
- the processes of step S31 and step S32 are sequentially performed on all of the components 4 adsorbed by the plurality of heads 122 (nozzles 123).
- step S33 a locus along which the head 122 (height measuring unit 125) moves in the X and Y directions is calculated. Thereby, it is possible to obtain the height measurement unit 125 close to the component mounting (mounting) position among the six height measurement units 125 while the head unit 12 is moving.
- step S34 it is determined whether the height of the mounting surface is to be measured. For example, when the head 122 (nozzle 123) on which the component 4 is to be mounted is located at a place other than the mounting position (for example, during movement of the head 122 (nozzle 123)), the height measuring unit 125 close to the mounting position If the mounting height has already been measured by the above, it is not necessary to measure the mounting height at the mounting position.
- step S39 If the mounting height is to be measured, the process proceeds to step S35.
- step S35 the head 122 (nozzle 123) is moved in an XY direction to a position (component mounting position) at which the component 4 is mounted (mounted). That is, among the six heads 122, the head 122 for mounting the component 4 is moved above the position of the substrate 2 for mounting the component 4.
- step S36 based on the height h12 (see FIG. 9) to the mounting (mounting) surface measured by the height measurement unit 125, and the height (thickness) t2 of the acquired component 4 in the Z direction 122 (nozzle 123) is lowered. That is, the head 122 (nozzle 123) is lowered to such a height that the bottom surface of the component 4 sucked by the nozzle 123 abuts on the mounting position on the substrate 2. In other words, the nozzle 123 is lowered to a mounting height position (position in the Z direction) where the lower end surface of the nozzle 123 is set upward by the height (thickness) of the component 4 from the mounting surface of the substrate 2. After the bottom surface of the component 4 abuts on the mounting position on the substrate 2, the negative pressure supply is stopped and the component 4 is mounted (mounted) on the substrate 2.
- step S37 the head 122 (nozzle 123) ascends in the Z-axis direction and is retracted with respect to the substrate 2 and the mounted component 4.
- step S38 it is determined whether the mounting (mounting) of all the components is completed. That is, it is determined whether or not all the components 4 of the head 122 (nozzles 123) having adsorbed the components 4 are mounted (mounted) on the substrate 2 according to the mounting program. If mounting of all parts is completed, the part mounting process is ended. If mounting of all parts has not been completed, the process returns to step S34, and part mounting processing by the next head 122 (nozzle 123) is executed.
- step S39 the head 122 (nozzle 123) is moved XY to the height measurement position.
- step S40 the height of the mounting surface of the component 4 is measured by the on-orbit height measurement unit 125 (height measurement unit 125 close to the height measurement position). Thereafter, the process proceeds to step S35.
- the component suction process shown in FIG. 10 is performed according to the mounting program. That is, the component suction process (steps S21 to S28) of FIG. 10 and the component attachment process (steps S31 to S38) of FIG. 11 are repeated until a predetermined number of components 4 are mounted on the substrate 2.
- the remaining structure of the second embodiment is similar to that of the aforementioned first embodiment.
- the height measurement unit 125 for measuring the height of the component suction position in the horizontal direction (XY direction) or the height of the component mounting position in the horizontal direction was measured by the height measurement unit 125
- the nozzle 123 is lowered to a mounting height position (position in the Z direction) at which component suction is performed at the component suction position based on the height or a mounting height position (position in the Z direction) at which component mounting is performed at the component mounting position.
- the height of the control device 16 is closer to the component 4 to be adsorbed in the horizontal direction (XY direction) than the height measuring unit 125 provided to the nozzle 123 for adsorbing the component 4
- the height measuring unit 125 close to the component 4 to be suctioned controls to measure the height of the component suction position, and the height measuring unit 125 provided in the nozzle 123 for mounting the component 4
- control is performed to measure the height of the component mounting position by the height measuring unit 125 closer to the mounting position.
- the height of the component suction position or the height of the component mounting position can be accurately measured by the height measuring unit 125 close to the component suction position or the component mounting position in the horizontal direction. Further, since the height of the component suction position or the height of the component mounting position can be measured by the height measurement unit 125 even during other operations, the tact time of the component suction process or the component mounting process can be shortened.
- mounting head For example, although the example of the structure which provides six heads (mounting head) was shown in the said, 1st and 2nd embodiment, this invention is not limited to this. For example, five or less or seven or more mounting heads may be provided.
- the height measurement unit is provided for each head (mounting head).
- the present invention is not limited to this.
- the height measuring unit may not be provided for each mounting head.
- one height measurement unit common to a plurality of mounting heads may be provided, or a plurality of height measurement units may be provided to one mounting head.
- components may be supplied from a component supply unit such as a tray.
- the height measurement part showed the example of the structure containing PSD, this invention is not limited to this.
- the height may be measured using a height measurement unit other than the PSD.
- the height (distance) may be measured using laser light, or the height may be measured using a camera.
- the height measuring unit is provided in the vicinity of the nozzle of the head (mounting head).
- the present invention is not limited to this.
- the height measurement unit may be disposed in the vicinity of the nozzle of the mounting head.
- control device performs suction when there is a height measurement unit closer to the component to be sucked in the horizontal direction than the height measurement unit provided to the nozzle for sucking the component.
- the height measuring unit close to the component performs control to measure the height of the component suction position, and the height measuring unit closer to the component mounting position in the horizontal direction than the height measuring unit provided on the nozzle mounting the component.
- the height measurement unit close to the mounting position is configured to perform control to measure the height of the component mounting position, but the present invention is not limited thereto.
- the control unit when there is a height measurement unit closer to the component to be adsorbed in the horizontal direction than the height measurement unit provided to the nozzle for adsorbing the component, the control unit is a component by the height measurement unit closer to the component to be adsorbed Control for measuring the height of the suction position and height measurement near the mounting position if there is a height measuring unit closer to the component mounting position in the horizontal direction than the height measuring unit provided on the nozzle mounting the component It may be configured to perform at least one of control to measure the height of the component mounting position by the unit.
- the height measuring unit measures the height of the suction position of the component or the mounting position of the component.
- the present invention is not limited to this.
- the height measurement unit may measure the height of the lowered position of the nozzle for replacing the nozzle.
- control device control unit
- processing operation of the control unit may be performed by event-driven (event-driven) processing that executes processing on an event-by-event basis.
- event-driven processing executes processing on an event-by-event basis.
- the operation may be completely event driven, or the combination of event driving and flow driving may be performed.
- control device 100 parts mounting device 122 head (mounting head) 123, 123a, 123b, 123c Nozzle 125, 125a, 125b, 125c height measurement part
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- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Operations Research (AREA)
- Supply And Installment Of Electrical Components (AREA)
Abstract
Description
図1~図5を参照して、本発明の第1実施形態による部品実装装置100の構成について説明する。
次に、図8および図9を参照して、本発明の第2実施形態による部品実装装置100について説明する。この第2実施形態では、部品の吸着または装着を行うヘッドに設けられた高さ測定部により部品吸着位置の高さまたは部品装着位置の高さを測定する構成の上記第1実施形態と異なり、部品吸着位置または部品装着位置に近い高さ測定部により部品吸着位置の高さまたは部品装着位置の高さを測定する構成について説明する。
4、4a、4b、4c 部品
16 制御装置(制御部)
100 部品実装装置
122 ヘッド(実装ヘッド)
123、123a、123b、123c ノズル
125、125a、125b、125c 高さ測定部
Claims (9)
- 部品を吸着するノズルを含み、前記部品を基板に実装する実装ヘッドと、
水平方向における部品吸着位置の高さまたは水平方向における部品実装位置の高さを測定する高さ測定部と、
前記高さ測定部により測定した高さに基づいて前記ノズルを前記部品吸着位置において前記部品の吸着を行なう吸着高さ位置または前記部品実装位置において前記部品の実装を行なう実装高さ位置に下降させる制御を行う制御部とを備える、部品実装装置。 - 前記高さ測定部は、前記実装ヘッドの前記ノズルの近傍に配置されている、請求項1に記載の部品実装装置。
- 前記ノズルは、複数設けられており、
前記高さ測定部は、複数の前記ノズル毎に複数設けられている、請求項2に記載の部品実装装置。 - 前記高さ測定部は、前記ノズルによる前記部品の吸着毎、前記部品のロット毎、または、定期的に、前記部品吸着位置の高さを測定するように構成されている、請求項1~3のいずれか1項に記載の部品実装装置。
- 前記制御部は、前記高さ測定部により測定された前記部品吸着位置の高さに基づいて、前記ノズルの下端面を前記部品の被吸着面に設定される前記吸着高さ位置に下降させる制御を行うように構成されている、請求項4に記載の部品実装装置。
- 前記高さ測定部は、前記ノズルによる前記部品の前記基板への実装毎、または、定期的に、前記部品実装位置の高さを測定するように構成されている、請求項1~3のいずれか1項に記載の部品実装装置。
- 前記制御部は、前記高さ測定部により測定された前記部品実装位置の高さに基づいて、前記ノズルの下端面を前記基板から前記部品の高さ分上方に設定される前記実装高さ位置に下降させる制御を行うように構成されている、請求項6に記載の部品実装装置。
- 前記高さ測定部は、前記ノズルを下降させながら、前記部品吸着位置の高さまたは前記部品実装位置の高さを測定するように構成されている、請求項2または3に記載の部品実装装置。
- 前記実装ヘッドは、水平方向に移動可能に構成されており、
前記制御部は、前記部品を吸着する前記ノズルに設けられた前記高さ測定部よりも前記水平方向において吸着する前記部品に近い高さ測定部がある場合、吸着する前記部品に近い高さ測定部により前記部品吸着位置の高さを測定する制御、および、前記部品を実装する前記ノズルに設けられた前記高さ測定部よりも前記水平方向において前記部品実装位置に近い高さ測定部がある場合、前記部品実装位置に近い高さ測定部により前記部品実装位置の高さを測定する制御の少なくとも一方を行うように構成されている、請求項3に記載の部品実装装置。
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PCT/JP2013/083256 WO2015087420A1 (ja) | 2013-12-11 | 2013-12-11 | 部品実装装置 |
KR1020167000342A KR101789127B1 (ko) | 2013-12-11 | 2013-12-11 | 부품 실장 장치 |
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JP2018011004A (ja) * | 2016-07-15 | 2018-01-18 | 富士機械製造株式会社 | 部品装着機 |
EP3322272A4 (en) * | 2015-07-08 | 2018-07-25 | Fuji Machine Mfg. Co., Ltd. | Component mounting machine and component mounting assembly line |
JP2020043153A (ja) * | 2018-09-07 | 2020-03-19 | 新日本無線株式会社 | 電子部品搬送装置及び電子部品搬送方法 |
JP2022080510A (ja) * | 2020-11-18 | 2022-05-30 | ヤマハ発動機株式会社 | 部品実装システム及び部品の実装状態判定方法 |
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CN110431932B (zh) * | 2017-03-22 | 2020-12-25 | 雅马哈发动机株式会社 | 元件安装机和吸嘴高度控制方法 |
KR20190091018A (ko) * | 2018-01-26 | 2019-08-05 | 한화정밀기계 주식회사 | 부품 실장 장치 |
JP7339028B2 (ja) * | 2019-06-18 | 2023-09-05 | Juki株式会社 | ノズル格納状態検出装置 |
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KR101789127B1 (ko) | 2017-10-23 |
JPWO2015087420A1 (ja) | 2017-03-16 |
CN105532083A (zh) | 2016-04-27 |
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