JP6570438B2 - Component mounting apparatus and reflecting member - Google Patents

Description

  The present invention relates to a technique for observing a mounting head for mounting components from below.

  As a component mounting apparatus for mounting electronic components on a substrate, for example, there is a component mounting apparatus described in Patent Document 1. In this component mounting apparatus, a carriage equipped with a plurality of component supply units such as a tape feeder is inserted into an opening provided on the side surface of the apparatus main body. In the internal space of the apparatus main body, the mounting head moves to a position above the component suction position, and after holding the components supplied to the component suction position by a suction nozzle attached to the lower end of the mounting head, Move to the position and mount the components on the board.

Japanese Patent No. 4742112

  In the component mounting apparatus configured as described above, in order for the user to check the state of the mounting head and the suction nozzle, the user has only to look in and obliquely upward from the opening in the bent state. It was. As described above, the conventional apparatus imposes an unreasonable posture on the user, and improvement of user workability is desired.

  The present invention has been made in view of the above problems, and an object thereof is to provide a technique capable of easily observing a mounting head from below.

One aspect of the present invention is a component mounting apparatus that includes an apparatus main body having an internal space and an opening that communicates the internal space with the outside, a mounting head that mounts the component in the internal space, and a component. A carriage that can be inserted into and removed from the main body of the apparatus through the opening with the component supply unit mounted , and a lower surface of the mounting head in the internal space and a surface normal of the reflecting surface obliquely upward toward the opening and a reflecting member that is arranged to extend, the reflecting member, when viewed obliquely from above through an opening in an open state carriage is removed from the apparatus main body, viewed mounting head from the lower side It is characterized in that an image is projected on a reflecting surface and can be observed from the outside of the apparatus main body.

According to another aspect of the present invention, there is provided an apparatus main body having an internal space and an opening that communicates the internal space with the outside, a mounting head that mounts components in the internal space, and a component supply unit that supplies the components. A reflection member installed in a component mounting apparatus including a carriage that can be inserted into and removed from the apparatus main body through an opening in a mounted state, the reflection member being lower than the mounting head in the internal space and of the reflection surface It can be arranged so that the surface normal extends obliquely upward toward the opening, and from the obliquely upward direction through the opening where the carriage is removed from the apparatus main body and opened by the arrangement in the internal space. When viewed, the image of the mounting head viewed from the lower side is projected on the reflecting surface and can be observed from the outside of the apparatus main body.

  In the invention thus configured, the reflecting member is disposed below the mounting head for mounting the components, and the emitted light emitted downward from the mounting head side is reflected by the reflecting member and passes through the opening. Is guided to the outside of the apparatus main body. For this reason, it is possible to observe an image of the mounting head viewed from the lower side through the reflecting member from the outside of the apparatus main body. Note that “emitted light emitted downward from the mounting head” includes not only light emitted from the mounting head but also light emitted from the periphery of the mounting head, which is necessary for confirming the state of the mounting head. Means light.

  According to the present invention, the mounting head can be observed from below from the outside of the apparatus main body by the reflecting member, and the above observation can be facilitated.

1 is a perspective view showing an embodiment of a component mounting apparatus according to the present invention. It is a top view which shows the internal structure of the component mounting apparatus shown in FIG. It is a figure which shows typically the structure and arrangement | positioning relationship of a head unit, a tape cutting device, and a reflective member. It is the elements on larger scale of the head unit with which the component mounting apparatus of FIG. 1 is provided. It is a fragmentary sectional view which shows an example of the head unit with which the component mounting apparatus of FIG. 1 is provided. It is a figure which shows the structure of the tape cutting part with which the component mounting apparatus of FIG. 1 is equipped. It is a perspective view which shows the structure of a reflection member.

  FIG. 1 is a perspective view showing an embodiment of a component mounting apparatus according to the present invention. 2 is a plan view showing an internal configuration of the component mounting apparatus shown in FIG. In this specification, in order to clarify the directional relationship between the drawings, the longitudinal direction of the base 2a of the component mounting apparatus 1 is referred to as the Y direction or the front-rear direction, and the horizontal direction orthogonal to this direction is defined as X. It is called direction or left-right direction.

  In this component mounting apparatus 1, a plurality of frame members (not shown) are attached to the base 2a, and a cover member 2b is attached to the frame member to constitute the apparatus main body 2. In this apparatus main body 2, with respect to the internal space 2c surrounded by the cover member 2b, the substrate transport mechanism 3 provided at the center in the longitudinal direction of the base 2a and the both ends of the base 2a in the longitudinal direction are provided. The component supply mechanisms 4, 4 and the component moving mechanism 5 provided above the base 2a are arranged, and components can be mounted in the internal space 2c. Further, a part of the apparatus main body 2 is not covered with the cover member 2b, and is provided with openings 2d, 2e, and 2f that allow the internal space 2c to communicate with the outside of the apparatus. Specifically, an opening 2 d for inserting and removing the carriage 15 from the front side of the component mounting apparatus 1 is provided at a position on the front lower side of the apparatus main body 2. Further, in the component mounting apparatus 1, an opening 2 e (see FIG. 2) is provided at a position on the rear lower side of the apparatus main body 2 so that the carriage 15 can be inserted and removed not only from the front side but also from the rear side. . Furthermore, an opening (only the front opening 2f is shown in FIG. 1) is provided above the openings 2d and 2e for inserting and removing the carriage 15, and the inside of the apparatus main body 2 is connected through the opening. Can be observed obliquely from above.

  The substrate transport mechanism 3 is composed of two conveyor units 6 arranged in the Y direction. These conveyor parts 6 convey board | substrates 7, such as a printed wiring board, to a X direction, respectively. The operation of the conveyor unit 6 is controlled by the control unit 8 of the component mounting apparatus 1.

  The component supply mechanisms 4 and 4 are for attaching the component supply unit 9. Concave portions 11 extending from the end in the Y direction toward the center in plan view are formed at both ends in the Y direction where the component supply mechanism 4 is provided on the base 2a. The component supply unit 9 can be inserted into and removed from each recess 11 through the front opening 2d and the rear opening 2e.

  The component supply unit 9 includes a plurality of tape feeders 12 and a tray-type component supply device. Here, the case where the component supply unit 9 includes the tape feeder 12 will be described as an example. Although not shown in the figure, the tape feeder 12 intermittently feeds a tape in which electronic components are stored and sends the tape to a component suction position of the component moving mechanism 5. The tape is discharged downward after the electronic components are adsorbed, and is cut into a predetermined length by a tape cutting unit 14 (see FIG. 6) described later.

  The tape feeder 12 is detachably supported by a tape feeder supporting carriage 15 (see FIG. 1), and is attached to the component supply mechanism 4 through the carriage 15 so as to face the tape cutting section 14 in the recess 11.

  The base 2a is provided with base erection portions 2g on both sides in the X direction, and the component moving mechanism 5 includes a pair of Y provided on the base erection portions 2g on both sides as shown in FIG. Rail unit 21, two X rail units 22 supported by these Y rail units 21 so as to be movable in the Y direction, and head units 23 each supported by these X rail units 22 so as to be movable in the X direction Etc.

  FIG. 3 is a diagram schematically showing the configuration and arrangement relationship of the head unit, the tape cutting device, and the reflecting member. 4 is a partially enlarged view of the head unit provided in the component mounting apparatus of FIG. 5 is a partial sectional view in the X direction showing an example of a head unit provided in the component mounting apparatus of FIG.

  As shown in FIG. 5, the head unit 23 includes three mounting heads 231 arranged in a straight line at a predetermined arrangement pitch Lh in the X direction. The three mounting heads 231 each have a schematic configuration in which the suction nozzle N is attached to the lower end portion of the nozzle shaft 232 extending in the Z direction. Specifically, the mounting head 231 has eight nozzle shafts 232 arranged at an arrangement pitch equal to the circumferential direction around a central axis CX parallel to the Z direction, and is provided at the lower end of each nozzle shaft 232. The suction nozzle N is detachably mounted on the nozzle mounting portion 233.

  In the nozzle mounting portion 233, a leaf spring 234 whose lower end is bent toward the shaft 232 is opposed to the outer periphery of the lower end of the nozzle shaft 232 with a gap. Then, when the suction nozzle N is pushed upward with respect to the nozzle mounting portion 233 with the top of the suction nozzle N being fitted to the nozzle shaft 232 from the outside while the tip of the suction nozzle N is directed downward, the outer periphery of the suction nozzle N The engaging protrusion Ne provided on the bottom of the plate springs into the gap between the nozzle shaft 232 and the plate spring 234 while pushing the lower end of the plate spring 234 outward. As a result, the outer peripheral projection Ne of the suction nozzle N engages with the lower end portion of the leaf spring 234, and the suction nozzle N is mounted on the nozzle mounting portion 233 with its tip directed downward. The suction nozzle N thus mounted on the nozzle mounting portion 233 is held on the nozzle mounting portion 233 by the elastic force of the leaf spring 234. On the other hand, the suction nozzle N mounted on the nozzle mounting portion 233 can be removed from the nozzle mounting portion 233 by pulling the suction nozzle N downward against the elastic force of the leaf spring 234. The suction nozzle N is formed with a flange Nf that protrudes laterally between the engagement protrusion Ne and the lower end (tip) of the suction nozzle N.

  An air passage 235 extending in the Z direction from the nozzle mounting portion 233 is formed at the center of each nozzle shaft 232, while a nozzle hole Nv penetrating in the Z direction is formed at the center of the suction nozzle N. The nozzle hole Nv of the suction nozzle N mounted on the nozzle mounting portion 233 communicates with the air passage 235. Therefore, it is possible to cause the mounting head 231 to perform component mounting while adjusting the air pressure of the nozzle hole Nv via the air passage 235. Specifically, when holding the component supplied by the component supply unit 9, negative pressure is applied to the nozzle hole Nv while the tip of the suction nozzle N is in contact with the component, and the component is sucked to the tip of the suction nozzle N. can do. Further, when placing a component on the substrate, a positive pressure is applied to the nozzle hole Nv, and the component can be instantaneously transferred from the suction nozzle N to the substrate. Note that the mounting head 231 can raise and lower the eight nozzle shafts 232 individually. Therefore, the holding of the component from the component supply unit 9 and the placement of the component on the board can be executed by selectively raising and lowering the nozzle shaft 232 on which the suction nozzle N as the execution subject is mounted. Furthermore, the mounting head 231 is a rotary mounting head that can integrally rotate the eight nozzle shafts 232 around the central axis CX. Therefore, the position of the suction nozzle N can be adjusted by appropriately rotating the eight nozzle shafts 232.

  On both outer sides in the X direction of the three heads 231 configured in this way, rod-shaped position recognition mark members 236 extending in the Z direction are arranged. Each mark member 236 is fixed to the head unit 23, and is imaged by a recognition camera (not shown) fixed to the base 2a and used for position recognition of the head unit 23.

  Further, as shown in FIG. 4, the head unit 23 includes a camera 237 that captures an image of the component sucked by the suction nozzle N from the side, and an illumination 238 that illuminates the field of view of the camera 237. The camera 237 (the optical system thereof) opposes the tip of the suction nozzle N mounted on the mounting head 231 from the Y direction and images the part sucked by the suction nozzle N from the Y direction. Thus, the camera 237 is disposed on the Y direction side of the mounting head 231. In addition, a rod-like reflecting member 239 is provided at the center of the eight suction nozzles N arranged circumferentially in the mounting head 231. The light from the illumination 238 is reflected by the reflecting member 239, so that the field of view of the camera 237 can be illuminated more brightly. A part of the light reflected by the mounting head 231 and the suction nozzle N proceeds downward as “emitted light” of the present invention as will be described later.

  Although not shown in the drawings, the component moving mechanism 5 has a plurality of driving units, and the mounting head 231 is driven by a part of the driving unit 231 so that the component is sucked by the suction nozzle N, The function of moving the nozzle N in the vertical direction and the function of rotating the suction nozzle about the vertical axis are achieved. The operation of each drive unit is controlled by the control unit 8 of the component mounting apparatus 1.

  FIG. 6 is a diagram showing a configuration of a tape cutting unit provided in the component mounting apparatus of FIG. The tape cutting portion 14 is disposed below the space in which the head unit 23 moves and at a position facing the carriage 15 inserted into the recess 11. Then, the tape cutting unit 14 cuts the tape TP after the components supplied from the tape feeder 12 are taken out by the mounting head 231, and the base 2a of the component mounting apparatus 1 in a state where the cutter 30 is supported. And a support frame 31 that is detachably attached.

  The cutter 30 is a movable blade (not shown) supported by the support frame 31 so as to be movable in the Y direction, a fixed blade (not shown) fixed to the support frame 31, and the movable blade is driven to move in the Y direction. The air cylinder 32 is used. The movable blade and the fixed blade are each formed in an elongated shape in the X direction, and are cut with a tape TP hanging from the tape feeder 12 interposed therebetween.

  The support frame 31 is formed in a square shape when viewed from above by combining a plurality of members. A tape guide 33 is provided at the front portion of the support frame 31 (one end portion in the Y direction and the end portion inserted into the recess 11 of the base 2a). As shown in FIG. 3, the tape guide 33 is for receiving an empty tape TP sent from the tape feeder 12 toward the tape cutting section 14, and further folding it downward to guide it to the cutter 30. is there.

  A discharge duct 35 for dropping the tape cut by the cutter 30 into a lower collection box 34 (see FIG. 1) is provided at the lower portion of the support frame 31. Both ends of the support frame 31 in the X direction are constituted by a pair of support members 36 and 36. These support members 36 are placed on support rails (not shown) provided in the component supply mechanism 4. In this embodiment, as shown in FIGS. 3 and 6, the reflecting member 50 is fixed to the base region sandwiched between the pair of support members 36 and 36 in the tape guide 33.

  FIG. 7 is a perspective view showing the configuration of the reflecting member. The reflection member 50 includes a base portion 51 and a mirror film (reflection film) 52. The base portion 51 has a film support portion 511 that extends over the same range as the head unit 23 moves in the X direction or over a slightly wider range. Further, from the lower end of the film support portion 511, an engagement portion 512 having a shape that can be engaged with the base region and three attachment portions 513 project downward. In addition, the engaging portion 512 can be engaged with the base region, and the engaging portion 512 can be fixed to the base region with a fastener (not shown) through a through hole provided in each mounting portion 513. It has become. In this embodiment, the film support part 511 is warped from the vertical direction to the tape guide 33 side (the right hand side in the figure) with respect to the engagement part 512 and the attachment part 513, and the film support part 511 is on the opening 2 d side. The main surface faces diagonally upward as shown in FIG. And the mirror film 52 is affixed with respect to the main surface by the side of this opening 2d. For this reason, the surface normal of the surface 521 of the mirror film 52 extends obliquely upward toward the opening 2d, and the emitted light L1 (see FIG. 3) emitted from the mounting head 231 side of the head unit 23 is the mirror film. It is reflected by the surface 521 of 52. Thus, the surface 521 of the mirror film 52 functions as a reflecting surface, and as shown in FIG. 3, the reflected light L2 reflected by the surface 521 is removed from the carriage 15 or the tape when the carriage 15 is removed from the recess 11. The light is guided to the outside of the apparatus main body 2 through the opening 2d without being disturbed by the feeder 12. Therefore, in this state, the user does not bend and displays an image reflected on the surface 521 of the mirror film 52 from the opening 2d in a natural posture, for example, an image IM when the mounting head 231 is viewed from below (see FIG. 7). Can be observed.

  As described above, according to the present embodiment, the reflecting member 50 is attached to the tape cutting unit 14 at a position lower than the mounting head 231, and reflects the emitted light L <b> 1 emitted downward from the mounting head 231 side to open. The light is guided to the position of the user's eyes on the outside of the apparatus main body 2 via the part 2d. For this reason, the user can easily observe the image IM obtained by viewing the mounting head 231 from the lower side through the reflecting member 50 from the outside of the apparatus main body 2. As a result, the user can easily check the mounting head 231 and the suction nozzle N mounted on the mounting head 231 with an easy posture without taking an excessive posture, and work efficiency can be improved. .

  Moreover, in the said embodiment, by removing the trolley | bogie 15 from the recessed part 11, the tape cutting part 14 remains in the apparatus main body 2 side, and observation of image IM reflected on the reflective member 50 attached to the tape cutting part 14 becomes easy. Become. Therefore, it is easy to perform maintenance work by removing the carriage 15.

  Furthermore, in the said embodiment, the mirror film 52 is attached to the base part 51, and the reflection member 50 is comprised. Therefore, when the reflection performance of the surface of the mirror film 52 is deteriorated due to adhesion of dirt on the mirror film 52 or aging, etc., the mirror film 52 can be replaced to return to the original state, and observation can be continued favorably. it can. As described above, the mirror film 52 can be replaced as a consumable and has excellent maintainability.

  The present invention is not limited to the above-described embodiment, and various modifications can be made to the above-described one without departing from the spirit of the present invention. In the above-described embodiment, the reflection surface is configured by attaching the mirror film 52 to the film support portion 511 of the base portion 51, but the reflection is achieved by finishing the surface of the film support portion 511 into a mirror surface instead of the mirror film 52. You may comprise a surface. As a result, the number of parts of the reflecting member 50 can be reduced and the cost can be reduced. Moreover, you may attach to the mirror film 52 in a part of tape cutting part 14, and this can reduce the number of parts of the reflecting member 50, and can aim at cost reduction. Furthermore, you may comprise a reflective surface by finishing a part of tape cutting part 14 in a mirror surface. In this case, the tape cutting unit 14 functions not only as a tape cutting function but also as a reflecting member, and the apparatus cost can be reduced by reducing the number of parts.

  Moreover, in the said embodiment, although the reflective surface comprised by the surface 521 etc. of the mirror film 52 is finished in a flat surface, the shape of a reflective surface is not limited to this, It is a concave surface according to observation conditions etc. Or a convex surface.

  In the above embodiment, the reflecting member 50 is attached to the tape cutting portion 14, but the attaching position of the reflecting member 50 is not limited to this, and the outside of the apparatus main body 2 on the lower side than the mounting head 231. There is no particular limitation as long as it can guide light. Moreover, in the said embodiment, although reflected light L2 is guided outside the apparatus main body 2 from the opening part 2d, a light guide path | route is not limited to this, You may use another opening part. . For example, the reflective member 50 (see the alternate long and short dash line in FIG. 2) may be attached to a tape cutting part (not shown) provided on the rear side, and the observation may be made from the rear opening 2e. Alternatively, the reflecting member 50 may be attached to the conveyor unit 6 and an image projected on the reflecting member 50 through the opening 2f, that is, an image IM when the mounting head 231 is viewed from below may be observed. In this case, it is possible to observe the mounting head 231 while the carriage 15 is inserted into the apparatus main body 2, and convenience can be improved.

  Furthermore, in the above embodiment, the present invention is applied to the component mounting apparatus 1 that mounts components by the rotary mounting head 231. However, the configuration of the mounting head 231 is not limited to this, and the mounting head Thus, the present invention can be applied to all component mounting apparatuses that mount components.

DESCRIPTION OF SYMBOLS 1 ... Component mounting apparatus 2 ... Apparatus main body 2c ... Internal space 2d, 2e, 2f ... Opening part 12 ... Tape feeder (component supply part)
DESCRIPTION OF SYMBOLS 14 ... Tape cutting part 15 ... Carriage 50 ... Reflective member 51 ... Base part 52 ... Mirror film 231 ... Mounting head 521 ... (surface of mirror film) IM ... Image L1 ... Output light L2 ... Reflected light

Claims (5)

An apparatus main body having an internal space and an opening for communicating the internal space with the outside;
A mounting head for mounting components in the internal space;
A carriage that can be inserted into and removed from the apparatus main body through the opening in a state in which a component supply unit that supplies the component is mounted;
A reflective member disposed in the internal space below the mounting head and so that a surface normal of the reflective surface extends obliquely upward toward the opening ;
When the reflection member is viewed from obliquely above through the opening that has been opened by removing the carriage from the apparatus main body, an image of the mounting head viewed from below is reflected on the reflection surface, A component mounting apparatus characterized in that observation is possible from the outside of the apparatus main body. The component mounting apparatus according to claim 1 ,
A tape cutting unit for cutting the tape after the component supplied from the component supply unit is disposed by facing the carriage in the internal space and is taken out by the mounting head;
The reflection member is a component mounting apparatus attached to the tape cutting unit. The component mounting apparatus according to claim 1 or 2 ,
A component mounting apparatus in which a surface of the reflecting member is finished to be a mirror surface and functions as the reflecting surface . The component mounting apparatus according to claim 1 or 2 ,
The reflective member includes a base part and a reflective film attached to the base part, and the surface of the reflective film functions as the reflective surface . The apparatus main body having an internal space and an opening that allows the internal space to communicate with the outside, a mounting head that mounts a component in the internal space, and a component supply unit that supplies the component are mounted in the opening. A carriage that can be inserted into and removed from the apparatus main body via a part, and a reflection member equipped in a component mounting apparatus,
The has a positionable to extend obliquely upward surface normal below a and the reflecting surface toward the opening portion than the mounting head in the internal space,
Due to the arrangement in the internal space, when the carriage is removed from the apparatus main body and opened from the upper side through the opening, the image of the mounting head viewed from the lower side is seen from the lower surface. The reflecting member is characterized in that it can be observed from the outside of the apparatus main body.

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