WO2014076792A1

WO2014076792A1 - Component mounting machine

Info

Publication number: WO2014076792A1
Application number: PCT/JP2012/079627
Authority: WO
Inventors: 識西山; 龍平神尾
Original assignee: 富士機械製造株式会社
Priority date: 2012-11-15
Filing date: 2012-11-15
Publication date: 2014-05-22
Also published as: JP5980945B2; JPWO2014076792A1

Abstract

This component mounting machine is provided with a rotating head (11) that exchangeably holds a plurality of suction nozzles (13); a head-holding unit (21) that exchangeably holds the rotating head (11); and a head moving device (20) that moves the head holding unit (21). The head holding unit (21) is configured in a manner so that a jig nozzle (51), which is used when the baseline position of the head holding unit (21) is measured, can replace the rotating head (11) and be held. A jig nozzle carrying section (52) is provided with a buffering mechanism (58) that enables the section carrying the jig nozzle (51) to be pressed downwards, and when the jig nozzle (51) on the jig nozzle carrying section (52) is being held by the head-holding unit (21), the head-holding unit (21) is lowered to a position that reliably contacts the jig nozzle (51) on the jig nozzle carrying section (52) and thus the jig nozzle (51) is reliably held by the head-holding unit (21).

Description

Component mounter

The present invention relates to a component mounter having a function of automatically replacing a head that holds a plurality of suction nozzles for sucking components.

In the component mounting machine described in Patent Document 1 (Japanese Patent No. 4546857), a rotary head that holds a plurality of suction nozzles can be automatically replaced according to the type (size, shape, etc.) of the component. In addition, the rotary head is sucked and held by the negative pressure suction force on the head holding portion of the component mounting machine.

On the other hand, the component mounting machine described in Patent Document 2 (Japanese Patent Laid-Open No. 2006-216627) enables the suction nozzle held by the mounting head to be automatically replaced according to the type (size, shape, etc.) of the component. For this purpose, a nozzle holding mechanism is provided in the mounting head, and the suction nozzle is held by the nozzle holding mechanism in a replaceable manner.

Japanese Patent No. 4546857 JP 2006-216627 A

The conventional component mounter has a configuration in which only one of the rotary head (mounting head) and the suction nozzle can be automatically replaced. Therefore, depending on the type of components mounted on the board, the operator manually In some cases, it is necessary to replace the suction nozzle of the rotary head, which has been a factor in reducing the operating rate of the component mounting machine.

Therefore, as described in the specification of the previous application (PCT / JP2012 / 0721121), the inventor of the present application provides a component mounting machine having a function of appropriately selecting automatic head replacement and suction nozzle replacement. I am researching, but during the research process, I found that the following issues exist.

前 Before attaching the head to the head holding unit of the component mounter, it is necessary to accurately grasp the reference position of the head holding unit. Therefore, a jig nozzle is used as a means for measuring the reference position of the head holding unit, and a jig nozzle mounting portion for mounting the jig nozzle is provided within the movement range of the head holding unit of the component mounting machine. The jig nozzle on the jig nozzle mounting part is held by the head holding unit of the component mounting machine and the reference position of the head holding unit is measured. Since the position of the head holding unit has not been accurately grasped yet at the stage of holding the jig nozzle, the head holding unit collides with the jig nozzle on the jig nozzle mounting portion and is damaged, There is a possibility of failing to hold the nozzle.

As a countermeasure, the head holding unit is provided with a buffer mechanism that can push up the part that holds the jig nozzle, and the head holding unit holds the jig nozzle on the jig nozzle mounting part. Although it is conceivable to lower the unit to a position where it abuts reliably on the jig nozzle on the jig nozzle mounting portion, the head holding unit can securely hold the jig nozzle. The mechanism is a play factor, and the positional accuracy of the head held by the head holding unit is lowered, and the positional accuracy of the suction nozzle held by the head cannot be ensured.

In order to solve the above-described problems, the present invention provides a head that replaceably holds a plurality of suction nozzles that suck parts, a head holding unit that replaceably holds the head, and a head that moves the head holding unit. In the component mounting machine including the moving device, the head holding unit is configured to replace and hold the jig nozzle used for measuring the reference position of the head holding unit with the head, and the jig nozzle A jig nozzle mounting portion for mounting a head, a head mounting portion for mounting a replacement head, a suction nozzle mounting portion for mounting a replacement suction nozzle, and controlling the head moving device. The head holding unit holds the head on the head mounting portion or the jig nozzle on the jig nozzle mounting portion and the head held by the head holding unit. And a control device that controls the operation of holding the suction nozzle on the suction nozzle mounting portion to the head, and the head holding unit can push up the portion that holds the head or the jig nozzle. The head holding unit is configured to hold the head and the jig nozzle in a state where the head is not pushed up, and the jig nozzle placement portion pushes down the portion on which the jig nozzle is placed. A buffering mechanism that enables this is provided.

In this configuration, since the buffer mechanism is provided in the jig nozzle mounting part, when the head holding unit holds the jig nozzle on the jig nozzle mounting part, the head holding unit is mounted on the jig nozzle mounting part. It is possible to move down to a position (a position where the jig nozzle is pushed down) that reliably contacts the jig nozzle on the part, and the head holding unit can reliably hold the jig nozzle. In addition, since the head holding unit is not provided with a buffer mechanism, there is no backlash due to the buffer mechanism, and the positional accuracy of the head and jig nozzle held in the head holding unit can be improved. Position accuracy can be ensured, and the reference position of the head holding unit can be accurately measured using the jig nozzle.

In this case, if the information on the reference position of the head holding unit is not stored in the storage device, the jig nozzle is placed on the head holding unit before the head holding unit holds the head on the head placement unit. After holding the jig nozzle on the part, measuring the reference position of the head holding unit and storing the reference position information in the storage device, the jig nozzle is placed on the jig nozzle mounting part. After returning, the head holding unit may hold the head on the head mounting portion. As described above, the present invention can accurately measure the reference position of the head holding unit using the jig nozzle held by the head holding unit. Therefore, after the reference position is measured, the head is placed on the head holding unit. If the head on the part is held, the head holding unit can be surely held on the head holding unit without pressing the head holding unit against the head on the head mounting part.

The present invention may be configured such that the head holding unit is assembled with a head rotating mechanism for rotating the head and a nozzle rotating mechanism for correcting the orientation of each component sucked by the suction nozzle by rotating the suction nozzle. In this way, the head rotation mechanism and the nozzle rotation mechanism can be used in common for all the heads to be replaced, and it is not necessary to assemble the head rotation mechanism or the nozzle rotation mechanism to the head to be replaced. It is possible to reduce the size and cost of the head and save space for replacement work.

In addition, the head and the jig nozzle are each provided with an engaged member at a connection portion with the head holding unit, and the lower surface of the head holding unit has an engagement position for engaging with the engaged member and its engagement. An L-shaped or J-shaped engaging member that moves between an engagement releasing position for releasing the engagement is provided, and the head holding unit is provided with the engaging member at the engaging position and the engagement releasing position. It is good also as a structure which provided the air cylinder used as the drive source which moves between. In this way, the head or jig nozzle is attached to the head holding unit by engaging the L-shaped or J-shaped engaging member on the head holding unit side with the engaged member on the head side or jig nozzle side. The head and jig nozzle can be held mechanically, and even if the head and jig nozzle are moved at a high speed, the head and jig nozzle can be prevented from being displaced or dropped due to inertial force. However, in the present invention, the head or jig nozzle may be sucked and held on the head holding unit by a negative pressure suction force.

FIG. 1 is a perspective view showing a state in which a rotary head is removed from a head holding unit of a component suction device according to an embodiment of the present invention. FIGS. 2A to 2I are perspective views showing an example of a replaceable rotary head and a replaceable suction nozzle. FIG. 3 is a perspective view showing an R-axis portion of the head holding unit. FIG. 4 is a perspective view of the rotary head. FIG. 5 is a perspective view showing an engagement holding structure of the suction nozzle. FIG. 6 is a longitudinal sectional view showing a state in which the jig nozzle is placed on the jig nozzle placement portion. FIG. 7 is a perspective view of the jig nozzle. FIG. 8 is a block diagram showing the configuration of the control system of the component mounter.

Hereinafter, an embodiment embodying a mode for carrying out the present invention will be described.
First, the structure of the component adsorption | suction apparatus 10 of a component mounting machine is demonstrated.

The rotary head 11 (head) of the component suction device 10 holds a plurality of nozzle holders 12 at a predetermined interval in the circumferential direction so that the nozzle holders 12 can be lowered. 13 is engaged and held so that it can be exchanged downward (detachable).

Here, the engagement holding structure of the suction nozzle 13 will be described with reference to FIGS. 2 and 5.
An engaging pin 14 (engaging protrusion) is provided on the suction nozzle 13 so as to protrude in the diameter direction. On the other hand, as shown in FIG. 5, in the fitting cylinder portion 15 that fits the upper portion of the suction nozzle 13 in the nozzle holder 12, an engagement pin 14 is inserted from below, and is inverted L-shaped or reversed. A J-shaped engagement groove 16 (bayonet-type engagement groove) is formed. Further, a cylindrical pressing member 17 is fitted to the fitting cylinder portion 15 of the nozzle holder 12 so as to be movable up and down, and the pressing member 17 is pushed down by a spring 18 (spring).

At a predetermined position within the movement range of the head holding unit 21 of the component mounting machine, a suction nozzle mounting portion (not shown) for mounting the replacement suction nozzle 13 is provided. The suction nozzle mounting portion is configured to be able to place a plurality of types of suction nozzles 13 (see FIG. 2) in a non-rotating state (a state in which the direction of the engagement pin 14 is positioned in a predetermined direction).

When attaching the suction nozzle 13 placed on the suction nozzle placement portion to the nozzle holder 12, first, the rotary head 11 is moved above the suction nozzle placement portion by the head moving device 20 (see FIG. 8). The nozzle holder 12 to be attached to the suction nozzle 13 is positioned directly above the suction nozzle 13, and the inlet 16 a of the engagement groove 16 of the fitting cylinder portion 15 of the nozzle holder 12 is engaged with the suction nozzle 13. The position is aligned with the pin 14. In this state, the rotary head 11 is lowered and the fitting cylinder portion 15 of the nozzle holder 12 is pushed into the upper portion of the suction nozzle 13 so that the inlet 16a of the engagement groove 16 of the fitting cylinder portion 15 is engaged with the suction nozzle 13. After being inserted into the pin 14, the nozzle holder 12 is rotated in the engagement direction (the tip direction of the engagement groove 16), so that the suction nozzle 13 is engaged with the V-shaped recess of the engagement groove 16 of the nozzle holder 12. The mating pin 14 is engaged. This engagement state is maintained by the pressing member 17 pressing the engagement pin 14 against the V-shaped recess of the engagement groove 16 by the spring force of the spring 18. In addition, a buffer mechanism (not shown) is provided inside the nozzle holder 12 to alleviate an impact when the fitting tube portion 15 of the nozzle holder 12 is pushed into the upper portion of the suction nozzle 13.

When removing the suction nozzle 13 from the nozzle holder 12, it may be performed in the reverse order as described above, and the suction nozzle 13 removed from the nozzle holder 12 is placed on the suction nozzle placement portion.

The rotary head 11 is held in a replaceable (detachable) manner on an R-axis 22 (see FIGS. 1 and 3) that extends below a head holding unit 21 that is moved by the head moving device 20. The head holding unit 21 is assembled with an R-axis drive mechanism 23 (head rotation mechanism) that rotates the R-axis 22. The R-axis drive mechanism 23 rotates an R-axis gear 24 (toothed surface not shown) fixed to the upper end of the R-axis 22 by an R-axis motor 25 to rotate the rotary head 11 around the R-axis 22. Thus, the plurality of nozzle holders 12 are configured to rotate integrally with the plurality of suction nozzles 13 in the circumferential direction of the rotary head 11.

A Q-axis gear 27 (toothed surface not shown) serving as a drive source for the Q-axis drive mechanism 26 (nozzle rotation mechanism) is rotatably inserted into the R-axis 22, and the Q-axis gear 27 is rotated by a Q-axis motor 28. It rotates around the R axis 22.

As shown in FIG. 3, a plurality of (for example, four) engaging members 31 for detachably engaging and holding the rotary head 11 are provided at the lower end of the R shaft 22 so as to be movable in the vertical direction. In the vicinity of each engagement member 31, an air cylinder (not shown) for driving the engagement member 31 in the vertical direction is provided. Each engagement member 31 is formed in an L shape or a J shape, and is arranged at equal intervals in the circumferential direction of the R shaft 22, and the direction of the claw portion of each engagement member 31 is the positive direction of the R shaft 22. They are aligned so as to be in the same direction as the rotation direction (or reverse rotation direction).

On the other hand, the rotary head 11 is provided with a nozzle rotation gear mechanism 32 (see FIG. 4) that transmits the rotational force of the Q-axis gear 27 to each nozzle holder 12. The nozzle rotation gear mechanism 32 bites a cylindrical gear 33 (tooth surface not shown) held concentrically on the upper side of the rotary head 11 and a small gear 34 attached to each nozzle holder 12. In addition, by rotating the cylindrical gear 33 by the Q-axis gear 27 of the head holding unit 21 and rotating the small gear 34 of each nozzle holder 12, each nozzle holder 12 rotates around the axis of each nozzle holder 12. Thus, the direction (angle) of each component sucked by each suction nozzle 13 held by each nozzle holder 12 is corrected.

The inner diameter of the cylindrical gear 33 is slightly larger than the outer diameter of the R shaft 22 so that the R shaft 22 of the head holding unit 21 can be inserted into the cylindrical gear 33. A plurality of long holes 35 for inserting the respective engaging members 31 of the R shaft 22 are formed at equal intervals in the circumferential direction at positions inside the cylindrical gear 33 in the upper surface portion of the rotary head 11. An engaged pin 36 (an engaged member) with which the claw portion of the engaging member 31 engages is fixed in a radial direction of the rotary head 11 on one side of the long hole 35. A gap through which the engaging member 31 slips in the vertical direction is secured on the side of the engaged pin 36 in each long hole 35.

A head mounting portion (not shown) for mounting the replacement rotary head 11 is provided at a predetermined position within the movement range of the head holding unit 21 of the component mounting machine. This head mounting portion is configured so that a plurality of types of rotary heads 11 can be mounted. When the rotary head 11 placed on the head placement unit is attached to the head holding unit 21, the R shaft 22 of the head holding unit 21 is inserted into the cylindrical gear 33, and each engagement member 31 of the R shaft 22 is inserted. In a state in which each of the long holes 35 of the rotary head 11 is inserted and the R shaft 22 is rotated by the rotation of the R shaft gear 24 so that the engagement members 31 are engaged with the engaged pins 36 in the long holes 35. Each engaging member 31 is pulled up and held. The head holding unit 21 can hold various types of rotary heads 11 [see FIGS. 2A and 2B] and can also hold a single nozzle mounting head 38 [see FIG. 2C]. ing.

In addition to the R-axis drive mechanism 23 and the Q-axis drive mechanism 26, a Z-axis drive mechanism (not shown) using a Z-axis motor 37 (see FIG. 8) as a drive source moves integrally with the head holding unit 21. The nozzle holder 12 is moved down at a predetermined stop position on the orbit of the nozzle holder 12 by the Z-axis drive mechanism.

Incidentally, it is necessary to accurately grasp the reference position of the head holding unit 21 before the rotating head 11 and the single nozzle mounting head 38 are held by the head holding unit 21 of the component mounting machine. Therefore, a jig nozzle 51 (see FIGS. 6 and 7) is used as means for measuring the reference position of the head holding unit 21, and the jig nozzle is placed at a predetermined position within the movement range of the head holding unit 21 of the component mounting machine. A jig nozzle mounting portion 52 for mounting 51 is provided, and the jig nozzle 51 on the jig nozzle mounting portion 52 is held by the head holding unit 21 of the component mounting machine, so that the reference position of the head holding unit 21 is set. To measure. At this time, for example, a position measurement jig (not shown) is attracted to the jig nozzle 51, and the position measurement jig is imaged by a camera (not shown) of a component mounting machine. By recognizing the position (X, Y, Z coordinates) of the position measuring jig, the reference position of the head holding unit 21 is measured, and information on the reference position is obtained from the control device 41 of the component mounting machine. It memorize | stores in the memory | storage device 43 (refer FIG. 8).

The configuration for holding the jig nozzle 51 in the head holding unit 21 is the same as the configuration for holding the rotary head 11 described above. As shown in FIGS. A plurality of long holes 55 through which the engaging members 31 of the shaft 22 are inserted are formed at equal intervals in the circumferential direction, and the claw portions of the engaging members 31 engage with one direction side of the long holes 55. An engaged pin 56 (an engaged member) is fixedly penetrated in the radial direction of the rotary head 11. A gap through which the engaging member 31 slips in the vertical direction is secured on the side of the engaged pin 56 in each of the long holes 55.

As shown in FIG. 6, the jig nozzle mounting portion 52 is provided with a buffer mechanism 58 that can push down a cylindrical mounting portion 57 on which the upper flange 54 of the jig nozzle 51 is mounted. The buffer mechanism 58 includes a cylindrical mounting portion 57 provided on the main body 52a of the jig nozzle mounting portion 52 so as to be movable up and down, and a spring 59 (biasing means) for biasing the mounting portion 57 upward. ). A positioning hole 60 for fitting the upper flange 54 of the jig nozzle 51 and a fitting hole 61 for fitting the cylindrical placement portion 57 so as to move up and down are formed in the main body 52a of the jig nozzle placement portion 52. Are formed concentrically in the vertical direction, and by making the inner diameter of the fitting hole 61 larger than the inner diameter of the positioning hole 60, a stopper portion 62 projecting inward on the upper end portion of the fitting hole 61 is formed. The upper limit position of the vertical movement range of the mounting portion 57 is regulated by the stopper portion 62. An annular assembly member 63 is attached to the lower portion of the fitting hole 61 of the main body 52a of the jig nozzle mounting portion 52 by screwing or the like, and the mounting portion 57 and the spring 59 are fitted by the mounting member 63. It is assembled in the joint hole 61. When the upper flange 54 of the jig nozzle 51 is fitted into the positioning hole 60 of the jig nozzle mounting portion 52, the nozzle portion of the jig nozzle 51 moves down the inner diameter side space of the spring 59 in the cylindrical mounting portion 57. The upper flange 54 of the jig nozzle 51 is placed on the placement portion 57.

Although it is not necessary to provide a buffer mechanism that can push down the portion on which the rotary head 11 is mounted on the head mounting portion on which the replacement rotary head 11 is mounted, a configuration in which a buffer mechanism may be provided is also possible. Needless to say.

On the other hand, the head holding unit 21 does not have a buffer mechanism that can push up the portion that holds the rotary head 11 or the jig nozzle 51, and the rotary head 11 or the jig nozzle 52 cannot be pushed up by the head holding unit 21. It is configured to be held in a state.

The head holding unit 21 of the component suction device 10 configured as described above is supported by the head moving device 20 of the component mounting machine and moves in the XYZ directions. The component mounting machine control device 41 (see FIG. 8) controls the head moving device 20, the R-axis motor 25, the Q-axis motor 28, and the Z-axis motor 37 of the head holding unit 21 in accordance with the production program. In addition to controlling the operation of sucking the component supplied from the feeder 42 set on the suction nozzle 13 and mounting the component on the circuit board, the rotary head 11 on the head mounting portion or the jig on the jig nozzle mounting portion 52 is controlled. The operation of holding the tool nozzle 51 on the head holding unit 21 and the operation of holding the suction nozzle 13 on the suction nozzle mounting portion on the rotary head 11 are controlled.

At this time, it is necessary to accurately grasp the reference position of the head holding unit 21 before the rotary head 11 is held by the head holding unit 21 of the component mounter. Therefore, when the information on the reference position of the head holding unit 21 is not stored in the storage device 43 (when the reference position of the head holding unit 21 is not yet measured using the jig nozzle 51), the head holding unit. Before the rotary head 11 is held by the head 21, the head holding unit 21 is moved above the jig nozzle 51 on the jig nozzle mounting portion 52, and the jig nozzle mounting portion 52 is moved to the head holding unit 21. After holding the upper jig nozzle 51 to measure the reference position of the head holding unit 21 and storing the information on the reference position in the storage device 43, the jig nozzle 51 is moved to the jig nozzle mounting portion. After returning to 52, the head holding unit 21 holds the rotary head 11 on the head mounting portion.

In the present embodiment described above, since the buffer mechanism 58 is provided in the jig nozzle mounting part 52, when the head holding unit 21 holds the jig nozzle 51 on the jig nozzle mounting part 52, The head holding unit 21 can be lowered to a position (position where the jig nozzle 51 is pushed down) that reliably contacts the jig nozzle 51 on the jig nozzle mounting portion 52, and the head holding unit 21 is securely attached to the jig. The nozzle 51 can be held. Moreover, since the head holding unit 21 is not provided with a buffer mechanism, there is no backlash due to the buffer mechanism, and the positional accuracy of the rotary head 11 and the jig nozzle 51 held by the head holding unit 21 can be improved. 11 can secure the position accuracy of the suction nozzle 13 held by the head 11, and can accurately measure the reference position of the head holding unit 21 using the jig nozzle 51. Therefore, if the head holding unit 21 is made to hold the rotary head 11 on the head mounting portion after measuring the reference position of the head holding unit 21, the head holding unit 21 is attached to the rotary head 11 on the head mounting portion. Even if it is not pressed, the rotary head 11 can be securely held by the head holding unit 21.

In this embodiment, the head mounting unit for mounting the replacement rotary head 11 and the suction nozzle mounting unit for mounting the replacement suction nozzle 13 are provided and moved by the head moving device 20. Since the rotary head 11 is exchangeably held on the R axis 22 of the head holding unit 21 and the suction nozzle 13 is held exchangeably on the nozzle holder 12 of the rotary head 11, automatic exchange of the rotary head 11 is possible. Automatic replacement of the suction nozzle 13 can be appropriately selected and performed, the time required for replacement of the rotary head 11 and the suction nozzle 13 can be shortened, and the operating rate of the component mounting machine can be improved.

In addition, in this embodiment, the suction unit 13 is rotated by rotating the suction head 13 and the R axis drive mechanism 23 (head rotation mechanism) that rotates the rotary head 11 to the head holding unit 21 that holds the rotary head 11 in a replaceable manner. Since the Q-axis drive mechanism 26 (nozzle rotation mechanism) that corrects the orientation of the component attracted by the nozzle 13 is assembled, the R-axis drive mechanism 23 and the Q-axis drive mechanism are used for all the rotary heads 11 to be replaced. 26 can be used in common, and it is not necessary to assemble the R-axis drive mechanism 23 or the Q-axis drive mechanism 26 to the rotating head 11 to be replaced. The space saving can be realized.

Furthermore, in this embodiment, the suction nozzle 13 is mechanically held by the nozzle holder 12 by the engagement between the engagement pin 14 on the suction nozzle 13 side and the engagement groove 16 on the nozzle holder 12 side, so that the rotation Even if the head 11 is moved at a high speed, it is possible to prevent the suction nozzle 13 from being displaced or dropped due to inertial force. However, in the present invention, the suction nozzle 13 may be held in the nozzle holder 12 by a plunger or a leaf spring.

Further, since the rotary head 11 is mechanically held by the head holding unit 21 by the engagement of the engaging member 31 on the head holding unit 21 side and the engaged pin 36 on the rotary head 11 side, the rotary head 11 Even when the head is moved at a high speed, it is possible to prevent the positional displacement or dropout of the rotary head 11 due to the inertial force. However, in the present invention, the rotary head 11 may be sucked and held by the head holding unit 21 with a negative pressure suction force.

The present invention is not limited to the above-described embodiments. For example, the configuration of the buffer mechanism 58 of the jig nozzle mounting portion 52, the configuration in which the rotary head 11 is engaged and held by the head holding unit 21, and the nozzle holder 12 The configuration for engaging and holding the suction nozzle 13 may be changed as appropriate, and the head holding unit may be configured to hold a non-rotating head, and various changes can be made without departing from the scope of the invention.

DESCRIPTION OF SYMBOLS 10 ... Component adsorption | suction apparatus, 11 ... Rotary head (head), 12 ... Nozzle holder, 13 ... Adsorption nozzle, 14 ... Engagement pin (engagement projection part), 15 ... Fitting cylinder part, 16 ... Engagement groove, 17 ... Presser member, 18 ... Spring, 20 ... Head moving device, 21 ... Head holding unit, 22 ... R axis, 23 ... R axis drive mechanism (head rotation mechanism), 24 ... R axis gear, 25 ... R axis Motor 26... Q-axis drive mechanism (nozzle rotation mechanism) 27... Q-axis gear 28. Q-axis motor 31. Engagement member 32 32 Nozzle rotation gear mechanism 33 Cylinder gear 34. ... long hole, 36 ... engaged pin (engaged member), 37 ... Z-axis motor, 38 ... mounting head, 41 ... control device, 42 ... feeder, 43 ... storage device, 51 ... jig nozzle, 52 ... Jig nozzle mounting part, 54 ... upper flange, 55 ... long hole 56 ... engaged pin (engaged member) 57 ... mounting portion, 58 ... buffer mechanism, 59 ... spring (biasing means), 60 ... positioning hole 51 ... fitting hole

Claims

In a component mounter comprising: a head that replaceably holds a plurality of suction nozzles that suck a component; a head holding unit that replaceably holds the head; and a head moving device that moves the head holding unit.
The head holding unit is configured to be able to replace and hold a jig nozzle used when measuring a reference position of the head holding unit with the head,
A jig nozzle mounting portion for mounting the jig nozzle;
A head mounting portion for mounting a replacement head;
A suction nozzle mounting section for mounting a replacement suction nozzle;
An operation of controlling the head moving device to cause the head holding unit to hold the head on the head mounting portion or the jig nozzle on the jig nozzle mounting portion, and the head held on the head holding unit to the head A controller for controlling the operation of holding the suction nozzle on the suction nozzle mounting portion,
The head holding unit does not have a buffer mechanism that can push up the part that holds the head or the jig nozzle, and the head or the jig nozzle is held in a state where the head or the jig nozzle is not pushed up. Composed of
A component mounting machine, wherein the jig nozzle mounting portion is provided with a buffering mechanism capable of pushing down a portion on which the jig nozzle is mounted.
When the information on the reference position of the head holding unit is not stored in the storage device, the control device causes the head holding unit to store the head on the head placement unit before the head holding unit holds the head. After holding the jig nozzle on the jig nozzle mounting part, measuring the reference position of the head holding unit and storing the information on the reference position in the storage device, the jig nozzle is moved to the jig The component mounting machine according to claim 1, wherein the head holding unit holds the head on the head mounting portion after returning to the nozzle mounting portion.
The head holding unit is assembled with a head rotation mechanism for rotating the head and a nozzle rotation mechanism for correcting the orientation of each component adsorbed on the adsorption nozzle by rotating the adsorption nozzle. The component mounting machine according to claim 1 or 2.
Each of the head and the jig nozzle is provided with an engaged member at a connection portion with the head holding unit,
An L-shaped or J-shaped engagement member that moves between an engagement position that engages with the engaged member and an engagement release position that releases the engagement is provided on the lower surface of the head holding unit. Is provided,
The head holding unit is provided with an air cylinder serving as a drive source for moving the engagement member between the engagement position and the engagement release position. The component mounting machine according to any one of the above.