JP3619231B2 - Parts supply device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a component supply device that supplies components from a tray to a mounting apparatus.
[0002]
[Prior art]
As a component supply apparatus as described above, for example, as disclosed in Japanese Patent Application Laid-Open No. 64-30298, a frame that supports a plurality of trays on which components are arranged is fixed on a lifting platform. There is a type in which a predetermined height of a plurality of supported trays is pulled out and positioned, and components are sucked from the positioned tray and supplied to the mounting apparatus.
[0003]
[Problems to be solved by the invention]
By the way, when the frame supporting the tray is raised and lowered and the components are sucked from the tray positioned at a predetermined position, for example, when an empty tray from which the components are taken out is replaced with a new tray, It is difficult to match the timing and position of replacement, and tray replacement is not easy.
[0004]
The present invention has been made to solve the above-described problem, and an object of the present invention is to provide a component supply device that can easily and quickly replace a tray.
[0005]
[Means for Solving the Problems]
In order to solve the above-described problems, a component supply apparatus according to the present invention includes a tray storage unit that stores a plurality of trays on which components are mounted in a plurality of levels in the vertical direction, and a tray that is stored in the tray storage unit. A tray drawing unit that pulls out and positions the component at a component suction position, a component suction head that sucks a component from the tray located at the component suction position, a component supply unit that supplies the component to the mounting device, and a component supply A component conveying unit that conveys a component by moving the supply table between the component supply unit and the mounting apparatus; and the component adsorption head is driven to be positioned at the component adsorption position. a robot unit for transferring the component on the tray to the supply table of the component supply unit, and a substrate conveying portion for conveying the printed circuit board to the mounting apparatus, the component and the transport path of the substrate by the substrate transfer unit Feeding portion adjacent and the parts conveying path by, while provided to both extend in parallel and horizontally in the same direction, the tray portion is fixedly provided, the tray draw-out portion with respect to the tray portion The tray pull-out height, which is configured to be movable up and down , and is positioned at the component suction position when the component is picked up by the suction head, and the height of the supply stand of the component transfer unit are substantially the same as the substrate support height by the substrate transfer unit. It is set to the same height .
[0006]
According to this apparatus, when replacing an empty tray as in the conventional apparatus, it is possible to carry out without replacing the tray or aligning the tray.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
A first embodiment of the component supply apparatus of the present invention will be described below with reference to FIGS. 1 is a side view of the component supply device, FIG. 2 is a plan view of the component supply device, FIG. 3 is an enlarged plan view of the component supply device, FIG. 4 is a plan view at a selected position of the tray drawer, and FIG. FIG. 6 is a plan view showing the drawer state of the tray drawer, FIG. 7 is a side view showing the driving state of the component suction head, and FIG. 8 is a side view of the component supply unit. .
[0008]
The apparatus body 2 of the component supply apparatus 1 is provided with a caster 3 and a leveling bolt 4. With the leveling bolt 4 raised, the apparatus body 2 can be easily moved to an arbitrary position by the caster 3. The position is regulated by lowering the leveling bolt 4.
[0009]
The apparatus main body 2 of the component supply apparatus 1 includes a tray storage unit 6 that stores a plurality of trays 5 in which chip components P such as ICs are arranged, and a tray 5 that is moved up and down and stored in the tray storage unit 6. A tray drawing portion 7 for positioning at the drawing component suction position, a component suction head 8 for sucking the component P from the tray 5 located at the component suction position, and driving the component suction head 8 to send the component P to the component supply portion 9. A robot unit 10 for supplying, a component conveying unit 12 for conveying the component P of the component supplying unit 9 to the mounting apparatus 11, and a board conveying unit 14 for conveying the printed board 13 to the mounting apparatus 11 are provided.
[0010]
The tray storage unit 6 is provided with a frame 15, in which a plurality of trays 5 on which components P are placed and held are stored in a plurality of stages in the vertical direction in a horizontal state. Each of the trays 5 is accommodated (in / out) from the arrow direction A of the frame 15 and is drawn out in the direction of arrow B when the component P is taken out. Further, a tab 5a for pulling out the tray 5 is provided on each tray 5 in the pulling direction side (arrow B direction).
[0011]
The tray drawer portion 7 is provided with a support base 16, and the support base 16 is supported by a pair of guide columns 17 disposed on both sides thereof so as to be movable up and down. The support base 16 is provided with a nut member (not shown), and a screw shaft 18 provided in parallel with the guide column 17 is screwed to the nut member and attached to the lower portion of the screw shaft 18. A belt 23 is wound around the pulley 19 and a pulley 22 attached to the output shaft 21 of the motor 20. When the motor 20 is driven, this rotational driving force is transmitted to the screw shaft 18, and the support base 16 is moved up and down as the screw shaft 18 rotates.
[0012]
The support base 16 is provided with a guide rail 24 extending in the pulling-out direction of the tray 5 (left and right direction in FIG. 1), and a tray hooker 25 is movably mounted on the guide rail 24. A belt 26 is attached to a lower portion of the tray hooker 25. The belt 26 is stretched between a pulley 27 pivotally supported on the tray storage unit 6 side of the support base 16 and a pulley 28 pivotally supported on the substrate transport unit 14 side. In addition, a belt 33 is stretched around a pulley 29 attached to the rotating shaft of the pulley 28 and a pulley 32 attached to the output shaft of the motor 30. When the motor 30 is driven, the belt 26 is rotated in the forward and reverse directions, so that the tray hooker 25 is moved along the guide rail 24. Further, the tray hooker 25 is provided with a pair of arms 34 at a predetermined interval in a direction orthogonal to the direction in which the tray 5 is pulled out, and these arms 34 are compressed air from a compressed air generating source (not shown). By being supplied and discharged, it is opened and closed between a position close to each other and a position away from each other.
[0013]
In the tray drawer 7, the support 16 is moved up and down by driving the motor 20, and the desired tray 5 is selected from the tray storage 6. At this time, as shown in FIG. 4, the tray hooker 25 is stopped at a position away from the end of the guide rail 24, that is, the tray storage portion 6, with the arm 34 open. Then, when the support 16 is stopped at the desired storage position of the tray 5, the motor 30 is then driven, the tray hooker 25 is brought close to the tray storage portion 6 along the guide rail 24, and As shown in FIG. 5, when the tab 5a of the tray 5 is interposed between the arms 34 of the tray hooker 25, the movement of the tray hooker 25 is stopped. When the movement of the tray hooker 25 is stopped, the arms 34 are brought close to each other, whereby the tab 5a of the tray 5 is clamped, and the tray hooker 25 is moved to the tray 5 by the reverse drive of the motor 30. While the knob 5a is clamped, it is moved in the pull-out direction. That is, by this, the tray 5 is pulled out from the tray storage unit 6.
[0014]
The component suction head 8 includes a cylinder part 36 and a nozzle part 35 connected to the shaft of the cylinder part 36, and a support base 48 of the robot part 10 via a bracket 37 joined to the cylinder part 36. It is attached to. As shown in FIG. 7, in the component suction head 8, the nozzle portion 35 is moved up and down by driving the cylinder portion 36, whereby the component P is sucked and taken out from the tray 5 positioned at the suction position. Yes.
[0015]
The robot unit 10 includes a base 38, a moving mechanism for moving the base 38 in the direction of pulling out the tray 5, a support base 48 supported by the base 38, and the support base 48 being pulled out of the tray 5. It consists of a moving mechanism that moves in a direction orthogonal to the direction.
[0016]
The base 38 is supported on a pair of guide rails 39 so as to be movable along the guide rails 39, and the pair of guide rails 39 is spaced at a predetermined interval in a direction perpendicular to the direction in which the tray 5 is pulled out. And extends in the direction in which the tray 5 is pulled out. A belt 40 is attached to the lower portion of the base 38, and the belt 40 is stretched over a pair of pulleys 41 and 42 that are pivotally supported at a predetermined interval in the direction in which the tray 5 of the apparatus body 2 is pulled out. Further, a belt 44 is stretched around a pulley 43 attached to the rotating shaft of the pulley 41 and a pulley 47 attached to the output shaft 46 of the motor 45. When the motor 45 is driven, the belt 40 is rotated forward and backward, whereby the base 38 is moved along the guide rail 39.
[0017]
On the other hand, the support base 48 is supported on the base 38 configured as described above so as to be movable in a direction orthogonal to the direction in which the tray 5 is pulled out. In other words, a belt 49 is attached to the support base 48, and the belt 49 is stretched over a pair of pulleys 50 and 51 that are pivotally supported by the base 38, and is further attached to the rotation shaft of the pulley 50. A belt 53 is stretched between the pulley 52 and a pulley 156 attached to the output shaft 155 of the motor 54. When the motor 54 is driven, the belt 49 is rotated in the forward and reverse directions, whereby the support base 48 is moved.
[0018]
The component supply unit 9 is provided with a supply table 55 on which the component P taken out from the tray 5 by the suction head 8 is placed, and the supply surface of the supply table 55 further includes a supply table. A plurality of suction heads 56 for preventing the parts P from falling during the movement of 55 are provided.
[0019]
The component transport unit 12 includes a transport rail 57 that extends in a direction perpendicular to the direction in which the tray 5 is pulled out and whose end reaches the mounting device 11. It is supported movably.
[0020]
A pair of pulleys 59 and 60 are pivotally supported at both ends in the longitudinal direction of the transport rail 57, and a belt 58 is stretched over the pulley 59 and the pulley 60. The belt 58 is connected to the transport rail. It is attached to the supply table 55 supported by 57. A pulley 61 is attached to the rotating shaft of the pulley 60, and a belt 62 attached to the pulley 61 is stretched over a pulley 65 attached to an output shaft 64 of the motor 63. That is, when the motor 63 is driven, the belt 58 is rotated in the forward and reverse directions, whereby the supply base 55 is moved along the transport rail 57.
[0021]
The substrate transport section 14 is provided with a pair of transport guides 66 and 67 extending in a direction perpendicular to the pull-out direction of the tray 5 at a predetermined interval in the pull-out direction of the tray 5. A pair of pulleys 68 and 69 are pivotally supported at both ends in the direction, and a belt 70 and a belt 71 are stretched around these pulleys 68 and 69.
[0022]
In addition, a drive shaft 83 extending in the pulling-out direction of the tray 5 is rotatably supported at substantially the center in the longitudinal direction of the transport guides 66 and 67. Drive pulleys 94 and 95 are attached to the drive shaft 83 at positions corresponding to the belts 70 and 71, and a drive pulley 90 is attached to the rear end, that is, the end on the conveyance guide 67 side. The belt 91 attached to the pulley 90 is stretched over a pulley 93 attached to the output shaft of the motor 92. That is, when the motor 92 is driven, the belts 70 and 71 are rotationally moved, so that the printed circuit board 13 bridged over the belts 70 and 71 is conveyed as shown in FIG. It has become.
[0023]
Further, the upper machine transport guides 66 and 67 are provided with adjustment shafts 72 and 73 extending in parallel with the drive shaft 83. Pulleys 76 and 77 are attached to the adjustment shafts 72 and 73, respectively, and a belt 82 attached to these pulleys 76 and 77 is attached to an output shaft of a motor 79 via a tensioner 78. It is stretched over. That is, when the motor 79 is rotated forward and backward, both the adjustment shafts 72 and 73 are rotated forward and backward, whereby the conveyance guide 66, the pulley 68, and the conveyance belt 70 are integrally moved forward and backward in the pull-out direction of the tray 5. It has come to be. That is, by adjusting the distance between the conveyance guide 66 and the conveyance guide 67 in this way, it is possible to cope with the printed circuit boards 13 having different widths.
[0024]
In the component supply apparatus 1 configured as described above, the tray drawer unit 7 is moved up and down with respect to the tray storage unit 6 to select and select a desired tray 5 in the tray storage unit 6. The tray 5 is pulled out to a predetermined component suction position. Then, the component P placed on the drawn tray 5 is sucked by the component suction head 8, transferred to the component supply unit 9 by the robot unit 10, and further driven by the component transport unit 12. The component P of the supply unit 9 is conveyed toward the mounting apparatus 11.
[0025]
As described above, in the component supply apparatus 1 configured as described above, the tray storage unit 6 is fixedly provided, and the tray drawer unit 7 is moved up and down with respect to the tray storage unit 6 to store the arbitrary tray 5 stored in the tray storage unit 6. The tray 5 is pulled out to be positioned at a predetermined component parts suction position, and the tray 5 can be inserted into and removed from the tray storage portion 6 from the opposite side of the component parts suction position (see arrow direction A in FIG. 1). Therefore, even during operation, the empty tray 5 can be easily taken out from the tray storage portion 6 and replaced. Therefore, it is possible to shorten the time for replacing the tray 5 or improve the efficiency of the tray 5 replacement work.
[0026]
Next, a second embodiment of the component supply apparatus of the present invention will be described with reference to FIGS. Those having the same functions as those of the first embodiment will be described with the same reference numerals.
[0027]
The basic structure of the component supply apparatus 100 of the second embodiment is the same as that of the component supply apparatus 1 of the first embodiment, but the functions of the component supply section 9 and the component transport section 12 in the component supply apparatus 1 are integrated. The difference is that a conveyor unit 101 is also provided.
[0028]
More specifically, a guide side plate 103 is disposed in the device main body 2 of the component supply device 100 of the second embodiment instead of the transport rail 57 of the component transport device 12 of the first embodiment. A pair of pulleys 104 and 105 are rotatably supported at both ends of the guide side plate 103 in the longitudinal direction, and a conveyor belt 106 is stretched around the pulleys 104 and 105. A pulley 109 is mounted on the rotating shaft of the pulley 105 with the guide side plate 103 interposed therebetween. A driving belt 108 is mounted on the pulley 109, and the driving belt 108 is mounted on the output shaft of the motor 102. The pulley 107 is stretched over. In other words, when the motor 102 is driven, the rotational driving force is transmitted to the pulley 105 via the drive belt 108 and the pulley 109, whereby the conveyor belt 106 is rotationally moved in the direction of the arrow in FIG. It is like that.
[0029]
That is, in the component supply apparatus 100 according to the second embodiment having the above-described configuration, the component P taken out from the tray 5 by the component suction head 8 is rotated and moved by driving the motor 102 as shown in FIG. By being placed on 106, it is supplied to the mounting apparatus 11 along with the rotational movement of the conveyor belt 106.
[0030]
In the component supply apparatus 100 according to the second embodiment, the component P is intermittently supplied to the mounting apparatus 11 as shown in FIG. 10 by supplying the component P using the rotational movement of the conveyor belt 106 as described above. Can be supplied. That is, in the component supply apparatus 1 of the first embodiment, the component P placed on the supply table 55 of the component supply unit 9 is moved along the conveyance rail 57 of the component conveyance unit 12 by moving the supply table 55 along the conveyance rail 57. Since the component P is supplied to the mounting device 11, when the component P on the supply table 55 moved to the mounting device 11 side disappears, the supply table 55 is temporarily moved to the component supply position by the suction head 8. It was necessary to move. That is, in the component supply apparatus 100, since the number of components P placed on the supply table 55 is limited, the supply table 55 needs to be reciprocated. Since the component P can be intermittently supplied as described above, the component supply efficiency can be further increased.
[0031]
In the conveyor unit 101, the components P may be intermittently supplied to the mounting apparatus 11 as described above by placing a plurality of components P on the conveyor belt 106 at a predetermined pitch. However, for example, one component P is placed on the transport belt 106 and supplied to the mounting apparatus 11, and then the next supply component P is placed on the transport belt 106 and supplied to the mounting apparatus 11. Of course, it may be controlled. That is, the rotational movement speed of the conveyor belt 106 or the supply pitch of the parts P to the conveyor unit 101 may be appropriately set according to the mounting speed of the mounting apparatus 11.
[0032]
【The invention's effect】
As described above, in the component supply device of the present invention, the tray drawer is raised and lowered with respect to the fixed tray storage portion, and the tray is pulled out. There is no need to change the timing or align the tray, and it can be done at any time. Therefore, the tray can be replaced easily and quickly.
[Brief description of the drawings]
FIG. 1 is a side view showing a first embodiment of a component supply apparatus according to the present invention.
FIG. 2 is a plan view showing a first embodiment of the component supply apparatus of the present invention.
FIG. 3 is an enlarged plan view showing a first embodiment of the component supply apparatus of the present invention.
FIG. 4 is a plan view at a selected position of a tray drawer.
FIG. 5 is a plan view of the tray drawer at the clamp position.
FIG. 6 is a plan view showing a drawer state of the tray drawer portion.
FIG. 7 is a side view showing a driving state of the component suction head.
FIG. 8 is a side view of a component supply unit.
FIG. 9 is a plan view showing a second embodiment of the component supply apparatus of the present invention.
FIG. 10 is a side view showing a conveyor unit.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Component supply apparatus 5 Tray 6 Tray storage part 7 Tray drawer part 8 Component adsorption head 9 Component supply part 10 Robot part 11 Mounting apparatus 12 Component conveyance part

Claims (1)

A tray storage unit that stores a plurality of trays on which components are mounted in a plurality of levels in the vertical direction in a horizontal state, a tray extraction unit that pulls out the trays stored in the tray storage unit and positions them at a component suction position, and the component suction A component suction head for sucking components from a tray located at a position; a component supply unit for supplying components to the mounting device; and a component supply base. A component conveying unit that conveys the component by moving the component, and driving the component adsorption head to transfer the component on the tray positioned at the component adsorption position to the supply table of the component supply unit A robot unit and a substrate transfer unit that transfers the printed circuit board to the mounting device ;
While the substrate conveyance path by the substrate conveyance unit and the component conveyance path by the component conveyance unit are adjacent to each other, both are provided to extend in parallel and horizontally in the same direction,
The tray portion is fixedly provided, the tray draw-out portion with respect to the tray portion is configured to be vertically movable, further
The tray pull-out height positioned at the component suction position when the component is picked up by the suction head and the height of the supply stand of the component transfer unit are set to be substantially the same as the substrate support height by the substrate transfer unit. A component supply device characterized by comprising:

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