JP2014195023A - Electronic component loading device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic component loading device capable of pressing a flat cable and avoiding the damage of the flat cable.SOLUTION: The electronic component loading device includes: a cable presser 7 disposed above a flat cable 8 which includes a plurality of juxtaposed cables flexibly formed in the longer direction of the cables, and moving together with a beam to suppress the upward deformation of the flat cable; and a roller 52 having a shaft 55 disposed in the orthogonal direction to the moving direction of the beam and disposed at a contact part 50 of the cable presser to the flat cable. When the roller 52 contacts to the flat cable 8, the roller 52 rotates to avoid the damage of the flat cable.

Description

  According to the present invention, a mounting head that can be moved by a drive source in a direction along the beam is provided on a beam that is movable in the horizontal direction, and the electronic component is mounted on the printed circuit board by holding the electronic component by the mounting head. Relates to the device.

  The above-described conventional electronic component mounting apparatus is disclosed in, for example, Patent Document 1. The mounting head is made up of a cable for supplying power to the nozzle vertical movement means, the drive means for the θ rotation means, etc., and an air tube for supplying air, and a flat cable is fixed on the way. It is supported by the member, and is supported along the beam. Furthermore, the direction of the flat cable is changed to a direction orthogonal to the beam at the direction changing portion at the end of the beam, and the moving direction of the beam (X direction in FIG. 1) A technique for disposing the above is disclosed.

  For example, a flat cable disposed in a direction orthogonal to the beam, that is, in the beam moving direction, is an upper horizontal portion disposed in an upper portion in a substantially horizontal direction, and a substantially U-shaped lower portion from the upper horizontal portion. A U-turn part, and a lower horizontal part extending substantially horizontally from the lower end of the U-turn part in a direction opposite to the upper horizontal part.

  Further, the direction changing portion at the end of the beam is disposed substantially horizontally above the upper horizontal portion extending from the direction changing portion. When the shape of the cable changes as the beam moves, the upper horizontal portion There is even a cable presser that holds the part up and down.

JP 2009-246284 A

  When the shape of the cable arranged in the beam moving direction (X direction in FIG. 1) changes with the movement of the beam, the upper surface of the upper horizontal portion of the cable may rub against the lower surface of the cable presser with the change. If the friction between the upper surface of the upper horizontal portion of the cable and the lower surface of the cable presser occurs for many years, the cable may be damaged.

  Therefore, an object of the present invention is to provide an electronic component mounting apparatus that can prevent the cable from being damaged as well as avoiding the jumping of the flat cable by using the cable presser.

  For this reason, according to the first aspect of the present invention, a mounting head that is movable in the direction along the beam is provided on the beam that is movable in the horizontal direction, and the electronic component is mounted on the substrate by holding the electronic component by the mounting head. In the apparatus, a flat cable formed by arranging a plurality of cables so that they can be bent in the longitudinal direction of the cable, and a cable that is provided above the flat cable and moves along with the movement of the flat cable and suppresses the upward deformation of the flat cable. A presser is provided, and a rotating member protruding downward is provided at a contact portion of the cable presser with the flat cable.

  According to a second aspect of the present invention, there is provided an electronic component mounting apparatus in which a mounting head movable in a direction along the beam is provided on a beam movable in the horizontal direction, and the electronic component is held on the substrate by the mounting head. A signal line cable formed by a signal line for sending a signal to a drive source provided in the mounting head and a power cable formed by a power line for supplying power to the drive source in a flat plate shape A flat cable which is formed side by side so as to be bendable in the longitudinal direction of the cable and is provided in the moving direction of the beam, and a cable presser which is provided above the flat cable and moves together with the beam to suppress upward deformation of the flat cable. The abutment portion of the cable presser with the flat cable is provided with a shaft in a direction perpendicular to the beam moving direction. Characterized in that a roller which rotates in contact with the flat cable.

  Further, according to a second invention, in the first or second invention, the cable presser is provided substantially horizontally in a longitudinal direction of the flat cable, and is formed in a tip portion of the cable presser and is curved upward. The rotating member or the roller is provided in an intermediate portion of the portion.

  According to the present invention, it is possible to provide an electronic component mounting apparatus that can prevent the flat cable from jumping up by the cable presser and prevent the cable from being damaged by friction with the cable presser.

1 is a plan view of a schematic configuration of an electronic component mounting apparatus. It is a front view of the principal part which shows schematic structure of an electronic component mounting apparatus. It is a side view which shows schematic structure of an electronic component mounting apparatus. It is a top view of a cable holder. It is a right view of a cable holder. It is a side view of the front-end | tip part (contact part) of a cable holder. It is the side view which showed the state of the flat cable which concerns on this invention, and a cable holder.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a plan view of the electronic component mounting apparatus 1, FIG. 2 is a front view of a main part illustrating a schematic configuration of the electronic component mounting apparatus 1, and FIG. 3 is a side view illustrating the schematic configuration of the electronic component mounting apparatus 1. .

DESCRIPTION OF SYMBOLS 1A is a beam, 2 is a linear guide, 3 is a cable support | pillar, 4 is an apparatus stand, 5 is an apparatus outer frame, 6 is an apparatus side cable holder, 7 is a cable presser which is attached to the cable support | pillar 3 and prevents a cable jumping, 8 is a flat cable, 10 is an apparatus cover, 11 is a linear motor, 14 is a mounting head (hereinafter referred to as a head), 15 is a feeder, 16 is a component recognition camera, and 17 is a substrate.

The beam 1A is individually moved in the X direction along the linear guide 2 along the linear guide 2 and above the component extraction portion (component suction position) of the feeder which is a component supply unit by driving the linear motor 11. Instead of the linear motor 11, a beam 1A may be moved by rotating a screw shaft using a servo motor or the like. The head 14 moves the beam 1A in the Y direction along a guide (not shown). A plurality of suction nozzles 30 are provided in the head 14 in a ring shape at regular intervals. For example, a suction side end of any suction nozzle 30 among the plurality of suction nozzles 30 by a nozzle selection motor that is a servo motor, for example. The part is selected to move up and down.

The flat cable 8 is a power cable for supplying power to an X-axis motor that moves the head 14 in the Y direction along the beam 1A, a θ-axis motor, a vertical axis motor, and each nozzle selection motor provided in the head 14. An air tube for vacuum suction, an air tube for supplying air, and an optical cable that is a signal line cable for sending a signal to a driving unit provided in the head 14, and these are flexible synthetic resin materials It consists of Further, the flat cable 8 is bendable, and has an upper horizontal portion 81 disposed in a substantially horizontal direction on the upper portion, a U-turn portion 82 extending downward from the upper horizontal portion 81 in a substantially U shape, A lower horizontal portion 83 extending substantially horizontally from the lower end of the U-turn portion 82 in a direction opposite to the upper horizontal portion is provided (see FIG. 3 and the like). Hereinafter, the cable retainer 7 will be described with reference to FIGS.

  The cable retainer 7 is fixed to the upper part of the cable support 3 with screws and has a substantially U-shaped cross-section. The cable retainer 7 includes a fixed part 42 fixed to the cable support 3 and a presser part 43 extending horizontally from the fixed part. I have. Further, the cable presser 7 includes a bottom plate 44 extending substantially horizontally from the fixing portion 42 to the presser portion 43, and both edges of the bottom plate (left and right in FIG. 2 (positioned up and down in FIG. 4)). The left and right vertical plates 45 that are bent and extended upward, and the fixing portion 42 bend outward and downward from the upper edge of each vertical plate 45 and extend downward along the outer surface of each vertical plate 45 and below the bottom plate 43. A protruding outer vertical plate 46 and a fixing plate 47 which is bent outward at a right angle from the lower end of each outer vertical plate 46 and extends horizontally are provided through a plurality of apertures 48 formed in each fixing plate 47. Screwed to the cable support 3.

  Further, an abutting portion 50 with which the flat cable 8 abuts is formed at the tip of the pressing portion 43. When the flat cable 8 hits the contact portion 50, the presser portion 43 is slightly deformed, and the contact portion 50 swings in the vertical direction.

  Hereinafter, the contact portion 50 will be described.

  The contact portion 50 is formed in an R shape, that is, an arc shape (see FIG. 6), extends upward from the horizontal portion 51, and the flat cable 8 easily comes into contact when the cable retainer 7 moves together with the beam 1A. A roller 52, which is a rotating member made of, for example, resin, is rotatably provided at a portion below the intermediate position of the contact portion 50 that is a portion. The roller 52 is preferably made of a lightweight material such as the resin described above so that the contact portion 50 can swing up and down to easily absorb the impact when the flat cable 8 is hit. Alternatively, it may be made of a light metal, such as aluminum. A rectangular opening 53 for roller arrangement is formed in the bottom plate 44 of the contact portion 50, and a lower portion 52 </ b> A of the roller 52 projects downward from the bottom plate 44 through the opening 53. A slight gap 54 is provided between the opening 53 and the roller 52. That is, the lower part 52 </ b> A protrudes from the curved part that is the contact part 50, and a part of the lower part 52 </ b> A may rest on the horizontal part 51 as long as it protrudes from the contact part 50.

  Further, left and right shafts 55 are provided at both left and right ends (upper and lower ends in FIG. 4) of the roller 52 so as to protrude from the end face. The left and right shafts 55 are rotatably supported through the left and right openings 56 respectively formed in the left and right vertical plates 45. Further, grooves (not shown) are formed at the positions of the shafts 55 slightly outside the vertical plate 45, and washers 57 are attached to the respective grooves. Then, the abutment between each washer 57 and each vertical plate 45 can prevent the roller 52 from shaking in the left-right direction.

  Further, a tip support portion 44 </ b> A is formed at the tip of the bottom plate 44 so as to extend further upward than the tip 45 </ b> A of each vertical plate 45.

  Reference numeral 60 denotes a sheet having elasticity such as a urethane sheet attached to the lower surface of the bottom plate 44 with, for example, a double-sided tape, and the flat cable 8 includes the lower surface of the bottom plate 44 and the upper surface of the cable support 3. The sheet 60 is sandwiched between the two. As a result, the flat cable 8 can be prevented from shaking due to the elastic sheet 58. Further, as shown in FIG. 7, the fixing portion 42 has a part of the fixing plate 47 and the upper surface of the cable column 3 so as to be fixed and elastically deformable. A receiver 61 is attached. The cable receiver 61 extends in the same direction as the flat cable 8 from the fixed portion 47, receives and supports the flat cable 8 near the fixed portion 47, and prevents the flat cable 8 from being greatly bent downward.

In FIG. 1 to FIG. 3, the beam 1 </ b> A, the cable support 3, and the cable retainer 7 are placed on the device mount 4 with the linear guide 2 as a guide. Further, the beam 1A, the cable support 3 and the cable retainer 7 are moved to the left or right in the X direction (moved in the direction of the arrow 21) by the linear motor 11, as shown in FIG.

Hereinafter, the operation of the electronic component mounting apparatus 1, that is, the operation during the mounting operation of the electronic component on the substrate will be described.

  In the electronic component mounting apparatus 1 shown in FIG. 1, first, components are supplied from the feeder 15, and the suction nozzle 30 of the head 14 sucks and holds the components. Thereafter, the linear motor 11 moves the beam 1A to the right in the X direction (see arrow 21), and the head 14 similarly moves in the X direction and passes over the component recognition camera 16. The component recognition camera 16 captures an image of the component held by the head 14 when the head 14 passes over the component recognition camera 16. The component mounting apparatus 1 recognizes the holding state of the component based on the image acquired at this time. Then, after the head 14 moves to the substrate 17, the mounting position is corrected based on the recognition result obtained by imaging the component held by the head 14 by the component recognition camera 16, and the component is mounted at the target position. After mounting the electronic components sucked and held by each suction nozzle 30, the head 14 returns again to the left in the X direction (see arrow 21) to the position of the feeder 15. Repeat this cycle.

  When the above-described cycle is repeated and the head 14 moves from above the feeder 15 to above the substrate 17 and returns from above the substrate 17 to above the feeder 15, the flat cable 8 is pulled by the operation of the beam 1A. Jump up.

  Hereinafter, the operation of the cable retainer 7 accompanying the movement of the beam 1A will be described with reference to FIGS. 3A and 7A are plan views of the apparatus when the left head 14 is positioned on the left side of the electronic component mounting apparatus 1, that is, above the feeder 15. FIG. It is a figure when the cable support | pillar 3 and the cable clamp 7 which were shown move from the maximum stroke position of the X direction right side to the maximum stroke position of the X direction left side shown as the continuous line as shown by the arrow 22. FIG.

That is, when the position of the cable support 3, flat cable 8 and cable retainer 7 shown in the solid line is the leftmost position, the upper part of the flat cable 8 extending rightward from the right end of the cable retainer 7 is shown. The horizontal portion 81 bends below one end and extends obliquely upward at the tip, and the left U-turn portion 82 is located above the cable retainer 7.

As shown by the solid line in FIG. 3, when the beam 1A, the cable support 3, the cable retainer 7, and the flat cable 8 are moved from the right to the left in the X direction, the flat cable 8 is moved during the movement. Is pulled upward in the Z direction while bending. As a result, when the flat cable 8 is pulled upward and the upper horizontal portion 81 and the U-turn portion 82 jump up, the flat cable 8 may come into contact with the device cover 10. In order to prevent this contact, the upward movement of the flat cable 8 is suppressed by the cable presser 7. At this time, the portion near the U-turn portion 82 of the upper horizontal portion 81 of the flat cable 8 hits the roller 52 provided at the contact portion 50 of the cable presser 7, and the jumping of the flat cable 8 is suppressed by the cable presser 7. Next, as shown by the solid line in FIG. 3, the beam 1A, the cable support 3, the cable retainer 7, and the flat cable 8 are gradually stopped from the maximum stroke position on the left side in the X direction to the right in the X direction. The state of the cable retainer 7 and the flat cable 8 when moved will be described with reference to FIGS. 3 and 7A to 7D.

  As shown in FIGS. 3 and 7A, when the beam 1A, the cable support 3, the cable retainer 7, and the flat cable 8 are stopped at the left position in the X direction, the contact portion 50 of the cable retainer 7 is used. Is not in contact with the flat cable 8, and a gap is formed between the roller 52 and the upper horizontal portion 81 of the flat cable 8.

  When the cable support 3 and the cable retainer 7 are moved in the right direction of the X direction as indicated by an arrow 71 in FIG. 7A, the upper horizontal is moved in the middle of the movement as shown in FIG. 7B. The portion on the U-turn portion 82 side of the portion 81 hits the roller 52 provided at the contact portion 50 of the cable retainer 7, and the jumping of the flat cable 8 is suppressed by the cable retainer 7. Further, when the flat cable 8 hits the contact portion 50, the holding portion 43 is bent, so that the impact is alleviated.

  Thereafter, when the cable support 3 and the cable retainer 7 further move in the right direction in the X direction, which is the direction indicated by the arrow 72 in FIG. The upper horizontal portion 81 and the U-turn portion 82 of the flat cable 8 are moved while being crushed while being in contact with the upper surface. At this time, as shown in FIGS. 7B and 7C, the roller 52 of the contact portion 50 rotates and rolls on the upper surface of the upper horizontal portion 81 of the flat cable 8, so that the bottom plate 44 is directly flat. The upper surface of the cable 8 can be prevented from being rubbed.

  Then, as shown in FIG. 7C, the cable support 3 and the cable presser 7 are shown with an arrow 73 in FIG. 7C in a state where the roller 52 of the contact portion 50 is in contact with the upper surface of the upper horizontal portion 81. As described above, the roller 52 rolls on the upper surface of the upper horizontal portion 81. For this reason, it is possible to reliably prevent the bottom plate 44 from directly rubbing against the upper surface of the flat cable 8 while the cable support 3 and the cable retainer 7 move to the maximum stroke position on the right side in the X direction shown in FIG. Can do.

  Further, the roller 52 is provided at a portion slightly below the intermediate position of the contact portion 50 that is a portion where the flat cable 8 is easily hit when the beam 1A, the cable support 3 and the cable retainer 7 are moved. Even if the shape of the U-turn portion 82 of the flat cable 8 changes as the beam 1A, the cable support 3 and the cable retainer 7 move, the lower portion 52A of the roller 52 hits the upper surface of the flat cable 8. As a result, it is possible to more reliably prevent the bottom plate 44 of the contact portion 50 from directly rubbing against and rubbing against the upper surface of the upper horizontal portion 81.

  During operation of the electronic component mounting apparatus 1, the pair of left and right beams 1 </ b> A reciprocate in the X direction. When reciprocating, the roller 52 of the contact portion 50 extends obliquely above the upper horizontal portion 81. Therefore, the bottom plate 44 can be prevented from being directly rubbed against the upper surface of the flat cable 8, and as a result, the flat cable 8 can be prevented from being damaged.

  As described above, the roller 52 is provided at a portion below the intermediate position of the arc-shaped contact portion 50, but a roller may be additionally provided at a position above the tip from this portion. Further, an additional roller may be provided in the vicinity of the contact portion 50 of the horizontal portion 1. Thus, by providing a plurality of rollers, it is possible to more reliably prevent the bottom plate 44 from directly hitting and rubbing against the upper surface of the flat cable 8.

  Although the embodiments of the present invention have been described above, various alternatives, modifications, and variations can be made by those skilled in the art based on the above description, and the present invention is not limited to the various embodiments described above without departing from the spirit of the present invention. It encompasses alternatives, modifications or variations.

DESCRIPTION OF SYMBOLS 1 Electronic component mounting apparatus 1A Beam 3 Cable support | pillar 7 Cable retainer 8 Flat cable 14 Head 50 Contact part 52 Roller (rotating member)

Claims (3)

  In an electronic component mounting apparatus in which a mounting head that is movable in a direction along the beam is provided on a beam that is movable in the horizontal direction, and the electronic component is held on the substrate by the mounting head, a plurality of cables are arranged side by side. A flat cable formed so as to be bendable in the longitudinal direction of the cable, and a cable presser that is provided above the flat cable and moves along with the movement of the flat cable to suppress the upward deformation of the flat cable. An electronic component mounting apparatus comprising a rotating member protruding downward at a contact portion with the flat cable.   A mounting head movable in a direction along the beam is provided on a beam movable in the horizontal direction, and an electronic component mounting apparatus for mounting the electronic component on the substrate by holding the mounting head is provided on the mounting head. A signal line cable formed by a signal line for sending a signal to a drive source and a power cable formed by a power line for supplying power to the drive source are arranged in a plate shape in the longitudinal direction of the cable. The cable includes a flat cable formed so as to be bendable and provided in the moving direction of the beam, and a cable presser provided above the flat cable and moved together with the beam to suppress upward deformation of the flat cable. The flat cable is provided with an axis in a direction orthogonal to the moving direction of the beam at a contact portion of the presser with the flat cable. An electronic component mounting apparatus characterized in that a roller which rotates in contact with Le.   The cable presser is provided substantially horizontally in the longitudinal direction of the flat cable, and the rotating member or the roller is provided in an intermediate portion of an abutting portion formed at the distal end portion of the cable presser and curved upward. The electronic component mounting apparatus according to claim 1 or 2.

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