WO2019026160A1 - Tête de montage et machine de montage de composant - Google Patents

Tête de montage et machine de montage de composant Download PDF

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Publication number
WO2019026160A1
WO2019026160A1 PCT/JP2017/027778 JP2017027778W WO2019026160A1 WO 2019026160 A1 WO2019026160 A1 WO 2019026160A1 JP 2017027778 W JP2017027778 W JP 2017027778W WO 2019026160 A1 WO2019026160 A1 WO 2019026160A1
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WIPO (PCT)
Prior art keywords
air passage
component
suction nozzle
pressure air
mounting
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Application number
PCT/JP2017/027778
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English (en)
Japanese (ja)
Inventor
力茂 手嶋
Original Assignee
株式会社Ｆｕｊｉ
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Publication date
Application filed by 株式会社Ｆｕｊｉ filed Critical 株式会社Ｆｕｊｉ
Priority to PCT/JP2017/027778 priority Critical patent/WO2019026160A1/fr
Priority to JP2019533764A priority patent/JP6807460B2/ja
Publication of WO2019026160A1 publication Critical patent/WO2019026160A1/fr

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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
    • H05K13/04—Mounting of components, e.g. of leadless components

Definitions

  • the present invention relates to a mounting head and a component mounting machine.
  • the mounting head constitutes a component mounting machine for mounting a component on a circuit board, and is used for the mounting process by the component mounting machine.
  • the mounting head is attached with a suction nozzle for suctioning a component supplied with negative pressure air.
  • Patent Document 1 discloses a component mounting machine that opens components from a suction nozzle by setting the inside of the suction nozzle as positive pressure or atmospheric pressure after the component held by the suction nozzle contacts the circuit board in the mounting process. .
  • the mounting head is required to be able to cope with various operations in order to improve the accuracy of the mounting process.
  • the target of the mounting process includes a minimal component
  • the inside of the suction nozzle can be switched to positive pressure, negative pressure, and atmospheric pressure, to cope with various mounting processes, and in particular, a mounting head and component mounting capable of preventing displacement of minimal components due to positive pressure air.
  • the purpose is to provide a machine.
  • the mounting head disclosed in this specification is a mounting head which is attached to a suction nozzle which is supplied with negative pressure air and suctions a component, and which mounts the component suctioned by the suction nozzle on a circuit board.
  • the first component mounting machine disclosed in the present specification is a component mounting machine including the mounting head described above, and a control device that controls the operation of the valve device in the mounting process, and the control device is In the mounting process, the positive air passage is formed in the common air passage during a first period until the suction nozzle is separated from the component after the component suctioned by the suction nozzle contacts the circuit board. After communication, the atmospheric air passage is communicated with the common air passage to make the common air passage at atmospheric pressure.
  • the second component mounting machine disclosed in the present specification is a component mounting machine including the mounting head described above, and a control device that controls the operation of the valve device in the mounting process, wherein the control device is In the mounting process, the positive pressure air passage is formed in the common air passage during a first period from when the component sucked by the suction nozzle contacts the circuit board to when the suction nozzle separates from the component.
  • the atmospheric air passage is communicated with the common air passage to bring the common air passage to the atmospheric pressure during a second period from the separation of the suction nozzle to the part and the horizontal movement after the suction nozzle is separated from the component. .
  • the third component mounting machine disclosed herein is a component mounting machine including the mounting head described above, and a control device that controls the operation of the valve device in the mounting process, and the control device is In the mounting process, the atmospheric air passage is formed in the common air passage during a first period until the suction nozzle is separated from the component after the component sucked by the suction nozzle contacts the circuit board. Communication is performed to make the common air passage at atmospheric pressure.
  • any one of the positive pressure air passage, the negative pressure air passage, and the atmospheric pressure air passage is selectively communicated with the common air passage by the valve device.
  • the air pressure in the suction nozzle can be selectively switched according to the type of the component to be mounted and the mounting environment. Therefore, by using the mounting head as described above for the mounting process, it is possible to prevent the positional deviation of the minimal component due to the positive pressure air or to reliably open the component from the suction nozzle.
  • the components are reliably released from the suction nozzle.
  • the common air passage is at atmospheric pressure, it is possible to reliably prevent the air from spouting from the suction nozzle.
  • the suction nozzle moves in the horizontal direction, it is possible to prevent the positional deviation of the already mounted minimal component.
  • the residual pressure of the common air passage can be released by setting the common air passage to the atmospheric pressure. it can. Furthermore, by setting the common air passage to the atmospheric pressure, it is possible to reliably prevent air from spouting from the suction nozzle when the suction nozzle is separated from the component. As a result, it is possible to prevent the positional deviation of the minimal component due to the ejection of air.
  • FIG. 1 It is a top view which shows the structure of the component mounting machine which performs a mounting process using the mounting head in embodiment. It is a side view which shows the mounting head in FIG.
  • FIG. 1 It is a circuit diagram showing an air supply circuit constituted by a mounting head.
  • sectional drawing which shows the state by which the spool of the valve apparatus in a mounting head was positioned in the 1st stop position, and negative pressure air was supplied to the adsorption nozzle.
  • Embodiment 1-1 Configuration of Component Mounting Machine
  • the component mounting machine 1 includes a substrate conveyance device 11, a component supply device 12, a component transfer device 13, a component camera 14, a substrate camera 15, and a control device 16, as shown in FIG.
  • the substrate transfer device 11 is configured by a belt conveyor or the like, and sequentially transfers a circuit substrate (hereinafter simply referred to as a “substrate”) 90 in the transfer direction.
  • the substrate transfer apparatus 11 carries the substrate 90 into the machine of the component mounting machine 1 and positions the substrate 90 at a predetermined position in the machine.
  • the substrate transfer apparatus 11 carries the substrate 90 out of the machine of the component mounting machine 1 after the component mounting process by the component mounting machine 1 is completed.
  • the component supply device 12 supplies components to be mounted on the substrate 90.
  • the component supply device 12 has a feeder 121 set in line in the X-axis direction.
  • the feeder 121 feeds and moves a carrier tape in which a large number of parts are stored, and supplies the parts so as to be able to be collected at a supply position located on the tip end side of the feeder 121.
  • the component supply device 12 may supply relatively large electronic components such as lead components in a state where they are arranged on a tray (not shown).
  • the component transfer device 13 includes a head drive device 131 and a moving table 132.
  • the head driving device 131 is configured to be able to move the moving table 132 in the horizontal direction (X-axis direction and Y-axis direction) by a linear movement mechanism.
  • the mounting head 20 is exchangeably fixed to the moving table 132 by a clamp member (not shown).
  • the mounting head 20 picks up the components supplied by the component supply device 12 with a tool such as the suction nozzle 50 and mounts the components on a predetermined mounting position of the substrate 90. The detailed configuration of the mounting head 20 will be described later.
  • the component camera 14 and the substrate camera 15 are digital imaging devices having an imaging device such as a charge coupled device (CCD) or a complementary metal oxide semiconductor (CMOS).
  • the component camera 14 and the substrate camera 15 perform imaging based on a control signal input from the outside.
  • the component camera 14 and the substrate camera 15 send out the image data acquired by imaging.
  • the component camera 14 is fixed to the base of the component mounting machine 1 such that the optical axis is upward in the Z-axis direction.
  • the component camera 14 is configured to be able to image the component held by the suction nozzle 50 from below.
  • the substrate camera 15 is provided on the moving stand 132 of the component transfer device 13 so that the optical axis is directed downward in the Z-axis direction.
  • the substrate camera 15 is configured to be able to capture an image of the substrate 90 from above.
  • the control device 16 mainly includes a CPU, various memories, and a control circuit.
  • the control device 16 inputs information output from various sensors provided in plural on the component mounting apparatus 1 and a result of recognition processing by image processing or the like in the mounting processing of mounting a component on the substrate 90. Then, the control device 16 sends out a control signal to the component transfer device 13 based on the control program and the predetermined mounting condition set in advance. Thereby, the position and rotation angle of the suction nozzle 50 held by the mounting head 20 are controlled.
  • control device 16 sucks the component supplied by the component supply device 12 by the suction nozzle 50 supplied with negative pressure air, and picks up an image by the component camera 14.
  • the control device 16 recognizes the attitude of the component with respect to the suction nozzle 50 based on the image data acquired by the imaging of the component camera 14.
  • the control device 16 recognizes the posture of the component by, for example, recognizing, by image processing, a portion of the component which is a reference position for positioning with respect to the substrate 90 and a characteristic portion in the appearance of the component.
  • the control device 16 moves the mounting head 20 above the predetermined position on the substrate 90. At this time, the control device 16 corrects the position and the angle of the suction nozzle 50 based on the posture of the component recognized by the image processing. Then, the control device 16 lowers the suction nozzle 50 and mounts the component on the substrate 90.
  • the components mounted on the substrate 90 are held by, for example, a tack force due to the viscosity of a bonding material (for example, cream solder) previously applied to the upper surface of the substrate 90.
  • the controller 16 executes the mounting process for mounting the component on the substrate 90 by repeating the pick and place cycle as described above. Details of the operation of the suction nozzle 50 and the control of the supplied air in the mounting process will be described later.
  • the mounting head 20 as shown in FIG. A rotary head 23 is provided in the head main body 21 so that the rotation angle can be determined by the R-axis motor 22 at predetermined angles.
  • the rotary head 23 has a plurality of (for example, twelve) tool axes 24 at equal intervals in the circumferential direction on a circle concentric with the R axis, and a ⁇ axis direction parallel to the Z axis and the R axis (vertical direction in FIG. ) And rotatably held around the ⁇ axis (see FIG. 4A).
  • the rotary head 23 constitutes a valve body of a valve device 40 described later.
  • the tool shaft 24 is urged upward with respect to the rotary head 23 by the elastic force of a spring (not shown).
  • the tool shaft 24 is located at the rising end in the normal state where no external force is applied.
  • a positive pressure air or negative pressure air is supplied and a tool for collecting parts is detachably attached.
  • the above-mentioned tool includes a chuck (not shown) operated by positive pressure air or negative pressure air, in addition to the suction nozzle 50 which sucks parts by negative pressure air. Further, when the suction nozzle 50 is attached, the tool shaft 24 biases the suction nozzle 50 downward by the elastic force of the in-shaft spring 241 as shown in FIG. 4A.
  • Each of the plurality of suction nozzles 50 is supplied with negative pressure air to the air passage 51 in the nozzle to suck a component.
  • the plurality of suction nozzles 50 are sequentially indexed to a predetermined angular position (for example, the elevation position of the tool shaft 24) around the R axis by the rotary head 23 rotating with the driving of the R axis motor 22.
  • the mounting head 20 has a ⁇ -axis motor 25 fixed to the head body 21 as shown in FIG. All the tool shafts 24 are connected to the output shaft of the ⁇ -axis motor 25 so as to be able to transmit the rotational force via a plurality of gears.
  • the tool shaft 24 and the suction nozzle 50 integrally rotate (rotation) around the ⁇ -axis by the operation of the ⁇ -axis motor 25, and the rotation angle and the rotation speed are controlled.
  • the head main body 21 is provided with an operation member 26 movably in the vertical direction (Z-axis direction).
  • the actuating member 26 is raised and lowered in the Z-axis direction by a ball screw mechanism 28 operated by the drive of the Z-axis motor 27.
  • the actuating member 26 has a lever 29 which contacts the upper end of the tool shaft 24 which is indexed to the above-mentioned elevation position among the plurality of tool shafts 24.
  • the lever 29 is lowered along with the downward movement of the actuating member 26 in the Z-axis direction.
  • the lever 29 presses the tool shaft 24 downward in the Z-axis direction against the elastic force of the spring of the contacting tool shaft 24 to lower the tool shaft 24.
  • the tool shaft 24 and the suction nozzle 50 are integrally raised and lowered in the Z-axis direction by the drive of the Z-axis motor 27, and the position in the Z direction and the moving speed are controlled.
  • the mounting head 20 includes an air supply circuit 30.
  • the air supply circuit 30 can supply positive pressure air or negative pressure air to the suction nozzle 50 and can open the suction nozzle 50 to the atmosphere.
  • the air supply circuit 30 includes a positive pressure air passage 31, a negative pressure air passage 32, a plurality of atmospheric pressure air passages 33, a plurality of common air passages 34, a positive pressure valve 35, a regulator valve 36, and a plurality of valve devices 40. .
  • the positive pressure air passage 31 is an air passage formed in the rotary head 23 as a valve body and through which positive pressure air supplied from the positive pressure air supply source 81 flows.
  • the above-mentioned positive pressure air supply source 81 is constituted by, for example, a blower or a compressor provided outside the mounting head 20.
  • the positive pressure air passage 31 is connected to the positive pressure air supply source 81 via the positive pressure valve 35 and the regulator valve 36.
  • the positive pressure valve 35 switches between the communication state and the blocking state of the positive pressure air passage 31 and the positive pressure air supply source 81.
  • the positive pressure valve 35 is a two-position solenoid valve in the present embodiment.
  • the positive pressure valve 35 opens when the solenoid is excited by power supply.
  • the positive pressure valve 35 brings the positive pressure air passage 31 and the positive pressure air supply source 81 into communication with each other so that positive pressure air can flow through the positive pressure air passage 31.
  • the positive pressure valve 35 is closed when the solenoid is not supplied with power.
  • the positive pressure valve 35 shuts off the positive pressure air passage 31 and the positive pressure air supply source 81 so that the positive pressure air does not flow in the positive pressure air passage 31.
  • the regulator valve 36 is disposed between the positive pressure valve 35 and the positive pressure air supply source 81.
  • the regulator valve 36 regulates the air pressure supplied by the positive pressure air supply source 81.
  • the regulator valve 36 reduces the air pressure of the positive pressure air supplied from the positive pressure air supply source 81 to a specified pressure obtained by reducing the air pressure to a certain degree, thereby enabling stable positive pressure air supply.
  • the negative pressure air passage 32 is formed in the rotary head 23 as a valve body, and is an air passage through which negative pressure air supplied from the negative pressure air supply source 82 flows.
  • the negative pressure air supply source 82 described above is configured by, for example, a negative pressure pump provided inside the mounting head 20 or the like.
  • the negative pressure air passage 32 is configured to be always connected to the negative pressure air supply source 82.
  • the negative pressure air passage 32 is in a state where negative pressure air can flow while the negative pressure air supply source 82 is driven.
  • Each of the plurality of atmospheric pressure air passages 33 is an air passage formed in the rotary head 23 as a valve body and opened to the atmosphere.
  • the atmospheric pressure air passage 33 is maintained equal to the air pressure inside the mounting machine 1 in which the mounting head 20 is disposed.
  • the atmospheric pressure air passage 33 communicates with the in-nozzle air passage 51 of the suction nozzle 50, if the in-nozzle air passage 51 has a negative pressure, the air is supplied and the atmospheric pressure is achieved. If it is a positive pressure, it will be exhausted to atmospheric pressure.
  • the detailed configuration of the atmospheric pressure air passage 33 will be described later.
  • Each of the plurality of common air passages 34 communicates with the corresponding suction nozzle 50 and is an air passage through which the air supplied to the suction nozzle 50 can flow.
  • the common air passage 34 has a main pipe 341, a first branch pipe 342, and a second branch pipe 343.
  • the main pipe 341 of the common air passage 34 is formed on the tool shaft 24 and communicates with the in-nozzle air passage 51 of the suction nozzle 50.
  • the first branch pipe 342 and the second branch pipe 343 are formed in the rotary head 23 and branch from the main pipe 341, respectively.
  • the first branch 342 may communicate with the positive pressure air passage 31 or the negative pressure air passage 32 by switching the valve device 40.
  • the second branch 343 may communicate with the atmospheric air passage 33 by switching the valve device 40.
  • the common air passage 34 is formed by the number of tool axes 24 provided in the rotary head 23. Further, in the present embodiment, when the suction nozzle 50 is attached to the tool shaft 24, the common air passage 34 always communicates with the suction nozzle 50 so that air can be supplied.
  • the valve device 40 selectively communicates any one of the positive pressure air passage 31, the negative pressure air passage 32 and the atmospheric pressure air passage 33 to the common air passage 34.
  • the valve device 40 can be configured by one or more valves as long as it has the above-described function.
  • various fluid valves can be employ
  • the valve device 40 is a three-position mechanical valve configured to include a rotary head 23 as a valve body, a spool 41, a stepping motor 42, and an operating shaft 43. is there.
  • the rotary head 23 is formed with the positive pressure air passage 31, the negative pressure air passage 32, the atmospheric pressure air passage 33, and the first branch pipe 342 and the second branch pipe 343 of the common air passage 34.
  • the “rotary head 23” is also referred to as a “valve body 23”.
  • the spool 41 is provided slidably with respect to a spool hole 231 formed in the valve body 23, and is positioned at three different stop positions (first stop position P1, second stop position P2, third stop position P3). Be done.
  • the spool 41 communicates any one of the positive pressure air passage 31, the negative pressure air passage 32, and the atmospheric pressure air passage 33 with the first branch pipe 342 or the second branch pipe 343 of the common air passage 34. It is a member to switch.
  • An engagement portion 411 is formed on the upper end of the spool 41 which protrudes from the upper surface of the valve body 23.
  • the stepping motor 42 is fixed to the head body 21.
  • the actuating shaft 43 is moved up and down by a predetermined amount by driving of the stepping motor 42.
  • the engaging portion 411 of the spool 41 is configured to be releasable about the R axis and engageable with the actuating claw 431 of the actuating shaft 43 in the Z axis direction. Thereby, the engagement portions 411 of the spools 41 of the plurality of valve devices 40 are sequentially engaged with the actuating claw 431 of the actuating shaft 43 by indexing the rotational angle of the valve body 23 about the R axis.
  • the spool 41 is given an external force to the actuating shaft 43 moved up and down by driving the stepping motor 42, and the vertical stop position (P1-P3) with respect to the spool hole 231 of the valve body 23 is controlled. Ru.
  • the spool 41 is supported by the spool hole 231 with a certain amount of frictional force.
  • the spool 41 is restricted from sliding in the vertical direction by its own weight. Therefore, the spool 41 is held at the positioned stop position (P1-P3) unless an external force exceeding the above-described frictional force is applied.
  • one end of the spool hole 231 in the valve body 23 constitutes at least a part of the atmospheric pressure air passage 33.
  • the spool hole 231 is formed to penetrate the valve body 23 in the vertical direction, and one lower end thereof is open to the atmosphere. That is, the lower end of the spool hole 231 constitutes the atmospheric pressure air passage 33, and the second branch pipe 343 of the common air passage 34 depends on the stop position of the spool 41 (the third stop position P3 in this embodiment). It communicates with the
  • the valve device 40 having the above-described configuration is configured such that the positive pressure air passage 31, the negative pressure air passage 32, and the atmospheric pressure with respect to the common air passage 34 according to the three stop positions (P1-P3) of the spool 41.
  • One of the air passages 33 is selectively communicated.
  • the valve device 40 causes the negative pressure air passage 32 to communicate with the first branch pipe 342 of the common air passage 34.
  • negative pressure air is supplied to the in-nozzle air passage 51 of the suction nozzle 50, and the suction nozzle 50 is brought into a state capable of suctioning components.
  • the valve device 40 when the spool 41 is positioned at the second stop position P2, the valve device 40 causes the positive pressure air passage 31 to communicate with the first branch pipe 342 of the common air passage 34. As a result, positive pressure air is supplied to the in-nozzle air passage 51 of the suction nozzle 50, and the suction nozzle 50 is brought into a state where the suction nozzle 50 opens the components due to vacuum destruction. Furthermore, as shown in FIG. 4C, when the spool 41 is positioned at the third stop position P3, the valve device 40 causes the atmospheric pressure air passage 33 to communicate with the second branch pipe 343 of the common air passage 34. Thus, the in-nozzle air passage 51 of the suction nozzle 50 is opened to the atmosphere.
  • the valve device 40 in the present embodiment moves the spool 41 in one direction (direction from the lower side to the upper side) with respect to the valve body 23 and sequentially positions the spool 41 at the three stop positions (P1-P3)
  • the negative pressure air passage 32, the positive pressure air passage 31, and the atmospheric pressure air passage 33 communicate with the common air passage 34 in this order.
  • FIG. 4C when the spool 41 is positioned at the third stop position P3 farthest from one end of the spool hole 231 among the three stop positions (P1-P3), as shown in FIG.
  • the atmospheric air passage 33 communicates with the common air passage 34.
  • the valve device in the conventional universal mounting head includes, for example, a first valve for supplying or blocking positive pressure air to the suction nozzle, and a second valve for supplying or blocking negative pressure air to the suction nozzle.
  • a first valve for supplying or blocking positive pressure air to the suction nozzle
  • a second valve for supplying or blocking negative pressure air to the suction nozzle.
  • the suction nozzle is shifted from negative pressure to atmospheric pressure while maintaining a state in which the component suctioned by the suction nozzle is pressed against the substrate (that is, a state where the tip of the suction nozzle is closed by the component). May break vacuum.
  • control is performed to shut off the air flow by turning off both the first valve and the second valve.
  • control is performed to shut off the air flow by turning off both the first valve and the second valve.
  • residual pressure is generated in the suction nozzle due to the relationship between the operation accuracy and responsiveness of the first valve.
  • sealing performance is ensured in the air passage, it is considered that it takes some time for the residual pressure in the suction nozzle to be reduced and equalized to the atmospheric pressure.
  • the mounting head 20 of the present embodiment when the atmospheric air passage 33 is communicated with the common air passage 34 by the operation of the valve device 40, the in-nozzle air passage 51 of the suction nozzle 50 is opened to the atmosphere. Ru. As a result, the suction nozzle 50 is in a state where it neither sucks nor jets air from its tip. That is, by connecting the atmospheric air passage 33 to the common air passage 34, the mounting head 20 can rapidly reduce the residual pressure in the in-nozzle air passage 51. As described above, the mounting head 20 enables fine control in the mounting process by appropriately switching the air pressure in the suction nozzle 50 by the operation of the valve device 40.
  • the control device 16 of the component mounting machine 1 starts the lowering of the suction nozzle 50 after moving the suction nozzle 50 holding the component above the predetermined position of the substrate 90 in the mounting process (FIG. 5) T1). Thereby, the suction nozzle 50 descends integrally with the tool shaft 24.
  • the component contacts the substrate 90 (T2 in FIG. 5).
  • “part contacts the substrate” means that the lower surface of the component reaches the height of the upper surface of the substrate 90 and both can come into contact with each other.
  • the upper surface of the substrate 90 is coated with a bonding material such as cream solder.
  • the control device 16 further lowers the tool shaft 24 to a predetermined height against the elastic force of the in-axis spring 241 of the tool shaft 24 and stops it (T3 in FIG. 5).
  • the suction nozzle 50 does not move downward, and presses the component toward the substrate 90 with an urging force corresponding to the amount of compression of the in-axis spring 241.
  • the controller 16 starts raising the tool axis 24 (T4 in FIG. 5).
  • the suction nozzle 50 reaches the lower end position relative to the tool axis 24 and is separated from the part (T5 in FIG. 5).
  • the suction nozzle 50 integrally rises with the tool shaft 24, and reaches the rising end of the rotary head 23 (T6 in FIG. 5).
  • the control device 16 moves the mounting head 20 so as to mount the component held by another suction nozzle 50 at a predetermined position on the substrate 90 after T5 in FIG. 5.
  • the suction nozzle 50 having finished mounting the parts as described above is moved in the horizontal direction (XY direction) by the rotation of the rotary head 23 around the R axis and the movement of the mounting head 20.
  • the suction nozzle 50 that has finished mounting starts horizontal movement after reaching the rising end of the rotary head 23 (T7 in FIG. 5).
  • the parts to be subjected to the mounting process include extremely small parts having a small area in contact with the substrate. Furthermore, depending on the specifications of the substrate product and the minimal parts, the tack strength of the bonding material applied to the substrate may be small.
  • the tack strength of the bonding material applied to the substrate may be small.
  • valve provided on the rotary head 23 is a valve that switches between negative pressure air for suction and positive pressure air for vacuum destruction, from the suction nozzle that has been mounted in the same pick and place cycle The state in which the positive pressure air spouted is maintained. Then, there is a possibility that the positive pressure air ejected from the suction nozzle moving the component in conjunction with the suction nozzle horizontally may affect the minimal components already mounted on the substrate.
  • the mounting head 20 While the mounting head 20 is compatible with various operations (operations such as supplying positive pressure air and negative pressure air to the suction nozzle 50) to improve the accuracy of the mounting process, it is positive for parts such as extremely small parts It is required to enable fine control so that the influence of pressurized air does not reach. Therefore, in the present embodiment, the mounting head 20 includes the valve device 40 configured as described above, and can execute the mounting process shown in a plurality of control modes as described below.
  • First control mode of mounting process The control device 16 of the component mounting machine 1 performs a first period of time in which the component sucked by the suction nozzle 50 contacts the substrate 90 and the suction nozzle 50 is separated from the component in the mounting process. After connecting the positive pressure air passage 31 to the common air passage 34 to R1 (T2-T5), the atmospheric air passage 33 is communicated to the common air passage 34 to bring the common air passage 34 to atmospheric pressure. Control the operation of the device 40.
  • the control device 16 first causes the positive air passage 31 to communicate with the common air passage 34 in the first period R1 (T2-T5).
  • the control device 16 sets the spool 41 of the valve device 40 to the first stop position P1 after the component contacts the substrate 90 and before the tool shaft 24 descends to a predetermined height (T21 in FIG. 5).
  • T21 in FIG. 5 a predetermined height
  • the second stop position P2. air is supplied to the air passage 51 in the nozzle via the common air passage 34 while maintaining the state in which the suction nozzle 50 presses the component against the substrate 90 side. Therefore, the air passage 51 in the nozzle exceeds the atmospheric pressure Va from the negative pressure Vn and reaches the positive pressure Vp1 (T31 in FIG. 5), as shown by an air pressure line L1 shown by a thick solid line in FIG.
  • the controller 16 causes the atmospheric air passage 33 to communicate with the common air passage 34 after the common air passage 34 reaches the positive pressure Vp1. That is, the control device 16 moves the spool 41 of the valve device 40 from the second stop position P2 to the third stop position P3 (T31 in FIG. 5). Thereby, the suction nozzle 50 keeps the air passage 51 in the nozzle open to the atmosphere through the common air passage 34 while maintaining the state in which the component is pressed to the substrate 90 side. Therefore, the air passage 51 in the nozzle is depressurized from the positive pressure Vp1 to the atmospheric pressure Va.
  • the suction nozzle 50 and components may be in a state of being hard to separate from each other due to foreign matter attached to the tip of the suction nozzle 50 or static electricity that acts to attract the two.
  • positive pressure air is supplied until the common air passage 34 reaches the positive pressure Vp1, The component and the suction nozzle 50 can be easily separated.
  • the residual pressure in the common air passage 34 can be reliably released by setting the common air passage 34 to the atmospheric pressure Va thereafter.
  • the suction nozzle 50 separates from the component (in particular, the minimal component)
  • the inside of the suction nozzle 50 is already at the atmospheric pressure Va.
  • the air can be reliably prevented from spouting from the suction nozzle 50.
  • the atmospheric pressure air passage 33 is formed at one end of the spool hole 231.
  • the length of the air passage until the suction nozzle 50 is opened to the atmosphere can be shortened.
  • the residual pressure of the common air passage 34 can be promptly released to make the inside of the suction nozzle 50 the atmospheric pressure Va.
  • Second control mode of mounting process The control device 16 of the component mounting machine 1 first causes the positive air passage 31 to communicate with the common air passage 34 in the first period R1 (T2-T5), as in the first control mode. .
  • the air passage 51 in the nozzle is a predetermined value of positive pressure (hereinafter referred to as "positive pressure Vp2"), exceeding the atmospheric pressure Va from the negative pressure Vn, as shown by a pneumatic line L2 shown by a thick broken line in FIG. Is reached (T32 in FIG. 5).
  • FIG. 5 has shifted and shown the part which overlaps with the pneumatic line L1 of a 1st control aspect.
  • the positive pressure Vp2 corresponds to the specified pressure reduced by the regulator valve 36 in the air supply circuit 30.
  • the control device 16 maintains the state where the common air passage 34 has reached the positive pressure Vp2 for a certain period Rc (T32 to T33). Subsequently, the control device 16 thereafter brings the atmospheric air passage 33 into communication with the common air passage 34, and brings the common air passage 34 to the atmospheric pressure Va. According to the control mode as described above, after the component held by the suction nozzle 50 comes into contact with the substrate 90, the state where the common air passage 34 reaches the predetermined positive pressure Vp2 is maintained for a certain period Rc. The suction nozzle 50 can be more easily separated.
  • the common air passage 34 to the atmospheric pressure Va thereafter, the residual pressure in the common air passage 34 and the air passage 51 in the nozzle can be quickly released.
  • the suction nozzle 50 is separated from the component (in particular, the minimal component), it is possible to prevent the air from spouting from the suction nozzle 50 and to prevent the displacement of the minimal component.
  • the first and second control modes described above are particularly useful when the component to be mounted is a minimal component, since the jet of air is prevented when the suction nozzle 50 moves away from the component. It is.
  • the micro parts are already mounted on the substrate 90, and positive pressure air is added when separating from the suction nozzle 50 to reliably release the suction nozzle 50. May be required.
  • the control device 16 of the component mounting apparatus 1 performs the first process in which the component adsorbed by the suction nozzle 50 first contacts the substrate 90 and the suction nozzle 50 separates from the component in the mounting process.
  • the positive pressure air passage 31 is communicated with the common air passage 34 for one period R1 (T2-T5).
  • the controller 16 stops the spool 41 of the valve device 40 from the first stop position P1 to the second stop position P2. Move to
  • the control device 16 stops the spool 41 of the valve device 40 from the second stop position P2 for a third time after the tool shaft 24 and the suction nozzle 50 start to integrally move up (T51 in FIG. 5). Move to position P3.
  • the suction nozzle 50 ejects air to surely open the component, and thereafter the supply of positive pressure air is shut off and the air passage 51 in the nozzle via the common air passage 34. Open to the atmosphere. Therefore, the air passage 51 in the nozzle is depressurized from the positive pressure Vp2 to the atmospheric pressure Va.
  • the common air passage 34 in the first period R1 since the positive pressure air is supplied to the common air passage 34 in the first period R1, the components are reliably released from the suction nozzle 50. As a result, it is possible to prevent a component from adhering to the tip of the suction nozzle 50 and causing a mounting defect in which the component is not properly mounted on the substrate 90. Furthermore, since the common air passage 34 is set to the atmospheric pressure Va in the subsequent second period R2, it is possible to reliably prevent the air from being ejected from the suction nozzle 50. As a result, when the suction nozzle 50 moves in the horizontal direction, it is possible to prevent the positional deviation of the already mounted minimal component.
  • the control device 16 of the component mounting device 1 appropriately executes the control process of the mounting process as described above. Further, the control device 16 may switch and execute a plurality of control modes in accordance with the type of the part to be mounted, the mounting position of the part, and the like.
  • the control mode of the mounting process to be executed for each type of component is set in advance as the mounting condition, for example, when the component is a minimal component, the influence when the suction nozzle 50 separates from the minimal component can be reduced.
  • the mounting process is performed according to the first control mode and the second control mode.
  • the mounting process is executed by the third control mode in which the release of the suction nozzle 50 and the component is prioritized or the normal control mode.
  • the control mode of the mounting process is set in advance as the mounting condition for each mounting position of the component, for example, the suction nozzle is mounted when the component to be mounted is mounted at the mounting position in the area where the minimal component is already mounted.
  • the mounting process is performed by the first control mode and the second control mode capable of reducing the influence on the peripheral minimal parts after the parts 50 are separated from the parts.
  • a component when a component is mounted at a mounting position in an area less susceptible to the influence of air jetted from the suction nozzle 50 such that only a component larger than a minimal component is mounted, release the suction nozzle 50 and the component.
  • the mounting process is performed according to the prioritized third control mode or the normal control mode.
  • a micro component may be included in an area different from the area including the mounting position and in which the suction nozzle 50 passes by horizontal movement after mounting. In such a case, the operation of the valve device 40 is controlled such that the in-nozzle air passage 51 is opened to the atmosphere at the latest before passing through the area.
  • control device 16 may appropriately switch the control process of the mounting process according to various conditions in addition to the type of the component and the mounting position.
  • the various conditions described above may include, for example, the mounting environment, the type of bonding material used for mounting the component, and the like. Even if the part to be mounted is a minimal part, the tack force may be sufficiently large depending on the type of bonding material, and in such a case, a third control mode or a normal control method giving priority to opening the suction nozzle 50 and the part Control modes may be selected.
  • the control device 16 may switch various control modes in consideration of the type of component, the mounting position, and various conditions in a combined manner.
  • the timings of operating the valve device 40 in various control modes of the mounting process have been illustrated and described as described above.
  • the timing at which the negative pressure air is switched to the positive pressure air and supplied to the common air passage 34 by the operation of the valve device 40 and the positive pressure air to the atmospheric pressure air The timing of switching and opening can be appropriately set within the above-described first period R1 (T2-T5).
  • the timing at which the negative pressure air is switched to the positive pressure air and supplied to the common air passage 34 by the operation of the valve device 40 is within the first period R1 (T2-T5) described above. It can be set appropriately. Furthermore, in the third control mode, the timing at which the common air passage 34 is switched from positive pressure air to atmospheric pressure air by the operation of the valve device 40 is appropriately within the above-mentioned second period R2 (T5-T7). It can be set.
  • the timing of the operation of the valve device 40 described above may be appropriately set in advance as a mounting condition so as to be switched according to the type of the component to be mounted and the mounting position of the component.
  • the contact between the component and the substrate 90 is detected, the air pressure of the common air passage 34 and the air passage 51 in the nozzle has reached a predetermined value,
  • the valve device 40 can be set to perform a predetermined operation after a set time has elapsed, using as a trigger that the detection is performed, the suction nozzle 50 has reached a predetermined height, or the like.
  • the control device 16 lowers the suction nozzle 50 and supplies positive pressure air to the suction nozzle 50 after the component comes in contact with the substrate 90 to be common
  • the air passage 34 and the air passage 51 in the nozzle were controlled to reach the positive pressure Vp1 which is a predetermined value.
  • the control device 16 supplies the positive pressure air to the suction nozzle 50 after the component contacts the substrate 90 depending on the type and mounting position of the component and various conditions, the common air passage 34 and the inside of the nozzle
  • the atmospheric air passage 33 may be communicated with the common air passage 34 before the air passage 51 exceeds the atmospheric pressure Va.
  • the air passage 51 in the nozzle is first supplied with positive pressure air and pressurized, and then it is opened to the atmosphere to be the atmospheric pressure Va. According to such a configuration, it is possible to release the residual pressure in the suction nozzle 50, and to quickly set the atmospheric pressure Va. Therefore, since the air is not jetted when the tool shaft 24 and the suction nozzle 50 are integrally raised thereafter and the suction nozzle 50 is separated from the component (in particular, the minimal component), the positional deviation of the minimal component is prevented. it can.
  • Embodiment 2-1 Regarding Configuration and Control Mode of Valve Device 40
  • the valve device 40 in the embodiment moves the spool 41 in one direction (direction from the lower side to the upper side) with respect to the valve body 23 to three stop positions (P1 to P3).
  • the negative pressure air passage 32, the positive pressure air passage 31, and the atmospheric pressure air passage 33 communicate with the common air passage 34 in this order.
  • the spool 41 is moved in one direction, the order of the air passages communicated with the common air passage 34 can adopt various modes.
  • the atmospheric pressure air passage 33 does not need to be in communication with the air supply source (81 82). Therefore, the valve device 40 may be a mechanical valve having four positions, for example, and the common air passage 34 may be opened to the atmosphere at two of the four positions. With such a configuration, for example, from the state in which the negative pressure air passage 32 is in communication with the common air passage 34, the valve device 40 is not connected to the common air passage 34 without moving the positive pressure air passage 31 by the movement of the spool 41. The atmospheric pressure air passage 33 may be communicated.
  • the control device 16 of the component mounting machine 1 performs the suction process, for example, after the component sucked by the suction nozzle 50 contacts the substrate 90 in the mounting process.
  • the atmospheric air passage 33 is communicated with the common air passage 34 in the first period R1 until the part 50 is separated from the component, and the common air passage 34 is brought to the atmospheric pressure Va.
  • the air passage 51 in the nozzle changes from the negative pressure Vn to the atmospheric pressure Va as shown by an air pressure line L4 shown by a two-dot chain line in FIG.
  • FIG. 5 has shifted and shown the part which overlaps with the pneumatic line L1 of a 1st control aspect.
  • the residual pressure of the common air passage 34 and the air passage 51 in the nozzle is released by setting the common air passage 34 to the atmospheric pressure Va after the component held by the suction nozzle 50 contacts the substrate 90. can do. Furthermore, by setting the common air passage 34 to the atmospheric pressure Va, it is possible to reliably prevent the air from being ejected from the suction nozzle 50 when the suction nozzle 50 is separated from the component. As a result, it is possible to prevent the positional deviation of the minimal component due to the ejection of air.
  • control mode can be switched according to the type and mounting position of the component to be mounted and various conditions, as in the embodiment exemplified in the embodiment, and The timing for operating the valve device 40 and the air pressure can be similarly set appropriately.
  • valve device 40 is a mechanical valve with three positions, and can switch three types of air passages (31, 32, 33) to the common air passage 34 alone.
  • the operation of the valve device 40 can be controlled by the stop position (P1-P3) of one spool 41. Further, since the valve device 40 as a whole can be miniaturized, the enlargement of the device as the mounting head 20 capable of switching three types of air pressure can be suppressed.
  • the valve device may be configured by combining a plurality of valves.
  • the valve device includes a first valve capable of switching between the communication state (ON) and the shutoff state (OFF) of the common air passage 34 and the positive pressure air passage 31, and the common air passage 34 and the negative pressure air passage.
  • a second valve may be provided to switch between the communication state (ON) of 32 and the communication state (OFF) of the atmospheric pressure air passage 33.
  • the valve device as described above turns off the first valve and turns on the second valve to supply negative pressure air to the suction nozzle 50 via the common air passage 34. Also, the valve device keeps the first valve OFF and the second valve OFF to open the common air passage 34 and the suction nozzle 50 to the atmosphere. Further, the valve device keeps the second valve OFF and turns the first valve ON to supply positive pressure air to the suction nozzle 50 through the common air passage 34. At this time, positive pressure air flows to the atmospheric pressure air passage 33 through the second valve, but since the positive pressure air is supplied to the suction nozzle 50, it sufficiently functions as a vacuum break.
  • the valve device 40 configures the rotary head 23 of the mounting head 20 as the valve body 23.
  • the valve device 40 may be provided separately from the rotary head 23 in part or all of the valve body. Also in such a configuration, the same effect as that of the embodiment can be obtained.
  • the aspect exemplified in the embodiment is preferable.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Supply And Installment Of Electrical Components (AREA)

Abstract

Cette tête de montage comprend : un passage d'air à pression positive à travers lequel de l'air fourni à une pression positive s'écoule à partir d'une source d'alimentation en air à pression positive ; un passage d'air à pression négative à travers lequel de l'air fourni à une pression négative circule à partir d'une source d'alimentation en air à pression négative ; un passage d'air à pression atmosphérique ouvert sur l'atmosphère ; un passage d'air partagé qui se raccorde à une buse d'aspiration et qui permet à l'air fourni à la buse d'aspiration de s'écouler à travers celui-ci ; et un dispositif de vanne qui établit sélectivement une communication entre le passage d'air partagé et l'un quelconque parmi le passage d'air à pression positive, le passage d'air à pression négative et le passage d'air à pression atmosphérique.
PCT/JP2017/027778 2017-07-31 2017-07-31 Tête de montage et machine de montage de composant WO2019026160A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2017/027778 WO2019026160A1 (fr) 2017-07-31 2017-07-31 Tête de montage et machine de montage de composant
JP2019533764A JP6807460B2 (ja) 2017-07-31 2017-07-31 装着ヘッドおよび部品装着機

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2017/027778 WO2019026160A1 (fr) 2017-07-31 2017-07-31 Tête de montage et machine de montage de composant

Publications (1)

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WO2019026160A1 true WO2019026160A1 (fr) 2019-02-07

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JP (1) JP6807460B2 (fr)
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111836533A (zh) * 2019-04-15 2020-10-27 中兴通讯股份有限公司 一种叠放系统和方法
DE112021008406T5 (de) 2021-10-25 2024-08-08 Fuji Corporation Bauteilanbringungsvorrichtung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS512744U (fr) * 1974-06-20 1976-01-10
JP2004303797A (ja) * 2003-03-28 2004-10-28 Matsushita Electric Ind Co Ltd 電子部品の実装方法
JP2013026261A (ja) * 2011-07-15 2013-02-04 Sony Corp 実装装置、塗布装置、実装方法、塗布方法及びプログラム
JP2013149778A (ja) * 2012-01-19 2013-08-01 Fuji Mach Mfg Co Ltd 部品実装装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS512744U (fr) * 1974-06-20 1976-01-10
JP2004303797A (ja) * 2003-03-28 2004-10-28 Matsushita Electric Ind Co Ltd 電子部品の実装方法
JP2013026261A (ja) * 2011-07-15 2013-02-04 Sony Corp 実装装置、塗布装置、実装方法、塗布方法及びプログラム
JP2013149778A (ja) * 2012-01-19 2013-08-01 Fuji Mach Mfg Co Ltd 部品実装装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111836533A (zh) * 2019-04-15 2020-10-27 中兴通讯股份有限公司 一种叠放系统和方法
DE112021008406T5 (de) 2021-10-25 2024-08-08 Fuji Corporation Bauteilanbringungsvorrichtung

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JP6807460B2 (ja) 2021-01-06
JPWO2019026160A1 (ja) 2020-03-26

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