JP2006165315A - Suction nozzle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a suction nozzle which can cut nozzle change operation by half, improve production efficiency and cut the number of nozzles by realizing a constitution to switch to a nozzle having two kinds of nozzle diameters by one suction nozzle. <P>SOLUTION: The suction nozzle has a nozzle body 14 supported to be attached/detached to/from a nozzle holder; a large diameter nozzle slider 17 which is supported to move up and down inside the nozzle body 14, and has a large diameter suction tube for usually receiving pressing force downward by an elastic body 28 and sucks a component; a stopper component 20 which is provided to the large diameter nozzle slider 17 and is supported inside the large diameter suction tube to appear/disappear; a small diameter nozzle slider 24 which is supported to move up and down inside the nozzle body 14 and always receives pressing force downward by the elastic body 29, and wherein a small diameter suction tube sucking a component is disposed inside a large diameter suction tube of the large diameter nozzle slider 17; and a fitting part 25 which is provided with the small diameter nozzle slider 24 and fits the stopper member 20. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to a suction nozzle of an electronic component mounting apparatus.

          In FIG. 9, reference numeral 2 denotes an electronic component mounting apparatus. This electronic component mounting apparatus 2 has a plurality of detachable suction nozzles 1 for picking up electronic components shown in FIG. 10, and a mounting head 3 for positioning in the vertical direction and the rotational direction is moved in the substrate P transport direction (X direction) and The mounting head XY drive mechanism 4 for positioning in the direction (Y direction) orthogonal to the transport direction, located on the side of the transport path of the substrate P, transports the component supply unit 5 consisting of a plurality of tape feeders, the substrate P It is comprised by the board | substrate conveyance positioning part 6 positioned to a position.

        In such a configuration, it is necessary to replace the mounting head 3 with a suction nozzle having a nozzle diameter suitable for the size and shape of the electronic component to be sucked.

        Therefore, the nozzle replacement is performed by moving the mounting head 3 to the nozzle replacement unit 7.

        As shown in FIG. 10, the suction nozzle 1 has a structure in which a nozzle slider 8 that sucks parts can slide in the nozzle body portion 9 in the vertical direction, and a pin 10 fixed to the nozzle body portion 9 The vertical direction and the rotational direction are restricted, and the impact at the time of component adsorption and mounting is mitigated by the compression spring 11. Although not shown, an air circuit is formed on the mounting head 3 by a known air generator such as a vacuum generator and a solenoid valve, and generates and vacuums a vacuum to suck and mount electronic components. Patent Document 1 shows an example of such a suction nozzle.

Japanese Patent Laid-Open No. 11-204991

          However, in the case of the conventional suction nozzle 1, in order to replace with a nozzle suitable for the size and shape of the electronic component to be sucked, it is necessary to move the mounting head 3 to the nozzle replacement portion 7 and perform the replacement operation. The number of exchanges increased, leading to a decrease in production efficiency.

        In addition, many types of nozzles corresponding to electronic components have to be prepared, and there is a problem that the number of nozzles increases.

        The object of the present invention is to reduce the number of nozzles by reducing the number of nozzle replacement operations by reducing the nozzle replacement operation by reducing the nozzle replacement operation to a nozzle having two nozzle diameters with a single suction nozzle. An object of the present invention is to provide a suction nozzle that can be used.

    In order to solve the above problems, the invention according to claim 1 is characterized in that the nozzle body part detachably supported by the nozzle holder, and supported in the nozzle body part so as to be movable up and down, and the pressing force is always applied downward by the elastic body. A large-diameter nozzle slider with a large-diameter suction pipe that receives and adsorbs components, a stopper member that is provided on the large-diameter nozzle slider and supported so as to be able to appear and retract in the large-diameter adsorption pipe, and is supported so as to be vertically movable in the nozzle body A small-diameter nozzle slider in which a small-diameter adsorption tube that receives a pressing force downward by an elastic body and adsorbs a component is disposed in the large-diameter adsorption tube of the large-diameter nozzle slider, and the small-diameter nozzle slider is provided with the stopper It is the structure provided with the engaging part engaged with a member.

    As described above, according to the first aspect of the present invention, it is possible to change the nozzle diameter while mounting one suction nozzle without moving the mounting head to the nozzle replacement section and replacing the nozzle. Therefore, the nozzle replacement work time can be shortened. As a result, the production efficiency of the substrate can be improved and the number of nozzles can be reduced.

(Embodiment 1)
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 8 and FIG. FIG. 1 shows a suction nozzle 12 according to the present embodiment, which is detachably held by a known hollow nozzle holder H of the mounting head of the mounting machine 2 shown in FIG.

  The suction nozzle 12 includes a large-diameter suction pipe 16 that supports a head 15 so as to be vertically movable below a passage 14 in a cylindrical nozzle body 13 and sucks an electronic component below the head 15. A stopper member 20 provided with a diameter nozzle slider 17 and a ball 19 which is provided on the head 15 of the large diameter nozzle slider 17 and is always pressed by the spring 18 toward the inside of the large diameter adsorption tube 16; 13 is formed on the outer periphery of the stopper member 20, engages with the head of the stopper member 20, and controls the rotation of the large-diameter nozzle slider 17. The recess 22 can be moved up and down above the passage 14 of the nozzle body 13. A small-diameter nozzle slider 24 having a small-diameter adsorption tube 23 that supports and adsorbs an electronic component below the concave portion 22, and is provided on the outer periphery of the small-diameter adsorption tube 23 of the small-diameter nozzle slider 24. A groove portion 25 as an engaging portion that engages with the nozzle 9, and a small-diameter nozzle slider 24 that has one end supported on the outer periphery of the nozzle body 13 and the other end engaged with a long groove 26 formed on the outer periphery of the concave portion 22 of the small-diameter nozzle slider 24. Are interposed between a rotation restricting pin 27 that restricts the rotation of the nozzle head 17 and the upper surface of the head 15 of the large-diameter nozzle slider 17 and the lower surface of the concave portion 22 of the small-diameter nozzle slider 24. It is interposed between the first compression spring 28 that is pressed in the direction of the stopper portion 13A provided in the lower portion and the recess 22 of the nozzle body 13 and the small diameter nozzle slider 24, and always moves the small diameter nozzle slider 24 downward, that is, in the direction of the rotation restricting pin 27. The second compression spring 29 is configured to be pressed.

Further, the mounting machine 2 (FIG. 9) is provided with switching stations 30 and 30 for switching the diameter of the nozzle slider in the vicinity of the substrate moving path in which the mounting head 3 can move. The switching stations 30 and 30 are configured by a hole 32 having a diameter L larger than the outer diameter of the nozzle of the small-diameter nozzle slider 24 and smaller than the outer diameter of the nozzle of the large-diameter nozzle slider 17 in the flat portion 31.
Although the stopper member 20 is constituted by the spring 18 and the ball 19, these may be constituted by a leaf spring.

  Next, the operation of the suction nozzle of the present invention will be described. In FIG. 1, when the large-diameter nozzle slider 17 is pushed out below the small-diameter nozzle slider 24, the electronic component is sucked and mounted by the large-diameter nozzle slider 17, and the impact at the time of sucking and mounting the component is applied to the first compression spring 28. To relax.

  On the contrary, when the small-diameter nozzle slider 24 is pushed out below the large-diameter nozzle slider 17, the small-diameter nozzle slider 17 sucks and mounts the electronic component, and the second compression compresses the impact when the component is sucked and mounted. It is relaxed by the spring 29.

  The switching from the large diameter nozzle slider 17 to the small diameter nozzle slider 24 is performed by positioning the suction nozzle 12 over the hole 32 of the switching station 30 with a positive pressure P applied by a vacuum breaking circuit as shown in FIGS. Then, the suction nozzle 12 is lowered as shown in FIG. Then, the tip surface of the large-diameter nozzle slider 17 comes into contact with the flat portion 31 of the switching station 30 and the lowering stops, and the small-diameter nozzle slider 24 is first compressed because the suction nozzle 12 is lowered and the positive pressure P is pressurized. The spring 28 moves down into the hole 32 against the spring force of the spring 28, and the groove 25 engages with the ball 19. When the suction nozzle 12 is raised, the large-diameter nozzle slider 17 is fixed above the small-diameter nozzle slider 24 as shown in FIG.

  The spring force of the second compression spring 29 is set with respect to the spring force of the first compression spring 28 so that the switching is performed only when the positive pressure P is applied. The relative movement of the small diameter nozzle slider 24 and the large diameter nozzle slider 17 is not performed and switching is not performed.

  Switching from the small-diameter nozzle slider 24 to the large-diameter nozzle slider 17 is performed as shown in FIGS.

  That is, the head of the stopper member 20 fixed to the large-diameter nozzle slider 17 on the flat portion 31 of the switching station 30 as shown in FIG. 5 is located at the upper end of the long groove 21 provided in the nozzle body 13 as shown in FIG. The suction nozzle 12 is lowered to a position where it comes into contact. Further, when it is lowered to the position shown in FIG. 7, the large-diameter nozzle slider 17 is lowered and the ball 19 is detached from the groove 25. When the suction nozzle 12 is raised from this state as shown in FIG. 8, the large-diameter nozzle slider 17 is moved downward by the restoring force of the first compression spring 28 and protrudes from the tip of the small-diameter nozzle slider 24.

Sectional drawing which shows embodiment of the suction nozzle of this invention Sectional drawing which shows embodiment of the suction nozzle of this invention Sectional drawing which shows embodiment of the suction nozzle of this invention Sectional drawing which shows embodiment of the suction nozzle of this invention Sectional drawing which shows embodiment of the suction nozzle of this invention Sectional drawing which shows embodiment of the suction nozzle of this invention Sectional drawing which shows embodiment of the suction nozzle of this invention Sectional drawing which shows embodiment of the suction nozzle of this invention Plan view of electronic component mounting equipment Cross section of conventional suction nozzle

Explanation of symbols

DESCRIPTION OF SYMBOLS 12 Adsorption nozzle 14 Nozzle main body 17 Large diameter nozzle slider 20 Stopper member 24 Small diameter nozzle slider 25 Engagement part 28 The 1st compression spring as an elastic body 29 The 2nd compression spring as an elastic body 30 Switching station

Claims (1)

A nozzle body removably supported by a nozzle holder;
A large-diameter nozzle slider which is supported in the nozzle body so as to be movable up and down, and which is always subjected to a downward pressing force by an elastic body and has a large-diameter adsorption pipe for adsorbing components;
A stopper member provided on the large-diameter nozzle slider and supported so as to be able to appear and retract in the large-diameter adsorption pipe;
A small-diameter nozzle slider that is supported in the nozzle body so as to be movable up and down, always receives a pressing force downward by an elastic body, and has a small-diameter adsorption pipe that adsorbs a component disposed in the large-diameter adsorption pipe of the large-diameter nozzle slider;
A suction nozzle that is provided on a small-diameter nozzle slider and includes an engaging portion that engages with the stopper member.

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