JP2586726Y2 - Parts supply device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component supply device for supplying electronic components arranged on a tray to a component mounting device or the like.

[0002]

2. Description of the Related Art Conventionally, a surface mounting component such as a flat package type IC is placed in a form in which it is dropped into a plurality of recesses (recesses are arranged at regular intervals) provided on a rectangular tray. In this state, an apparatus such as that disclosed in Japanese Patent Application Laid-Open No. 64-30298 has been proposed for supplying one by one to a component mounting apparatus or the like. In this equipment, a plurality of trays of parts of different types are stacked vertically at predetermined intervals, arranged so that they can be pulled out to the elevator section, a tray of a specific type is selected and pulled out, and the parts are picked up and mounted. The equipment is supplied to the equipment, and various parts can be supplied.

In the apparatus proposed in Japanese Patent Application Laid-Open No. Hei 3-206695, a plurality of magazines for accommodating a plurality of trays at predetermined intervals are provided, and each magazine can be driven separately in the vertical direction. While the component supply operation is being performed, components are supplied to the tray stored in the other magazine or the tray is replaced, thereby improving the operation rate of the apparatus.

[0004]

In such a component supply apparatus, only one kind of suction nozzle for picking up components on the tray is provided, and the nozzle is changed depending on the size of the component supplied on the tray. Need to be done. Therefore, according to the present invention, a plurality of suction nozzles are prepared for components of various shapes and sizes supplied by the tray, and the components are picked up by the suction nozzles corresponding to each component, and the supply component type at the time of automatic component supply is determined. The aim is to increase the operating rate by increasing it.

[0005]

A plurality of trays on which components are arranged and placed are stacked at regular intervals and supported so as to be able to move up and down. The tray on which the components commanded by the component mounting device are placed is set at a predetermined height. In the component supply device that lifts and lowers the tray, and transfers the components on the tray to a predetermined position in the component mounting device, the present invention employs a plurality of suction heads that can move up and down on a transfer head that moves XY above the drawn tray. Install the nozzle. A driving unit for causing each suction nozzle to perform a lifting operation, a selection unit for selecting a desired nozzle from a plurality of suction nozzles and performing a suction operation, and a component mounting device for receiving a component transferred by the suction nozzle. The shuttle is provided with a plurality of types of holding means for holding the transferred components arranged in a line in the transport direction. Shuttle driving means for reciprocating the shuttle from the component receiving position to the predetermined position of the component mounting apparatus is provided, and at least one suction nozzle corresponding to the component type on the tray is selected and sucked and held, and the component receiving position is selected. Then, the type of holding means corresponding to the part is located, and the part is transferred.

[0006]

Various components supplied on the tray are picked up and transferred by suction nozzles suitable for each component. Further, depending on the type of the transferred component, the shuttle that receives the component can receive the shuttle with a holding unit suitable for the component.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic side view showing an embodiment of the component supply device of the present invention, and FIG. 2 is a plan view of the component supply device. The component supply device 1 includes an elevator unit 2 mounted on a frame 11 for lifting and lowering a magazine M, and a magazine. The tray P on which the tray T is placed is pulled out from the M, a tray drawer 3 for positioning and holding, a transfer head 4 for picking up and transferring components on the drawn tray, and receiving the transferred components and receiving the transferred components, And a control unit 6 for controlling each unit. still,
In this embodiment, the tray T is removably positioned and mounted on a rectangular plate P as shown in FIG. FIG.
As shown in FIG. 3, the plurality of plates P on which the trays are placed are slidably engaged one by one with a plurality of horizontal grooves formed on both inner side surfaces of the magazine M, and the trays are inserted into the magazine M. T is stacked and stored at predetermined intervals.

The elevator unit 2 raises and lowers the magazine M, and stops the plate P on which a desired tray is mounted at the pull-out position. The elevator unit 2 connects a ball nut to the magazine mounting table 21 and rotates the ball screw. Perform a lifting operation. The tray drawer 3 hooks the edge of the plate P stopped at the drawer position with the finger 31, draws the magazine P from the magazine M onto the table 32, and positions and holds the plate. These configurations are described in, for example, Japanese Patent Application Laid-Open No. 2-265806.
Since it is described in the official gazette and is not the gist of the present invention, the description is omitted.

The transfer head unit 4 moves in the X direction along the X direction arm 40, and both ends of the X direction arm 40 are arranged on both sides of the table 32 in a direction perpendicular to the arm 40 and are parallel to each other. 411 and 412 are slidably fitted to each other and move in the Y direction. As for the XY moving mechanism, a similar mechanism is described in Japanese Patent Application Laid-Open No. 2-265806 and is not the gist of the present invention, so that the detailed description is omitted.

[0010] The main part of the present invention, the transfer head 4
Will be described with reference to FIGS. 3 and 4. FIG. FIG. 3 is a plan view in which a part of the transfer head unit 4 is broken, and FIG. 4 is a side view of the same. The transfer head unit 4 is a component of the X-direction arm 40 and includes two guide rods 401 and 40 parallel to each other.
2 is attached to a slide block 42 that slides along 2. Reference numerals 421 and 422 denote pulleys which are rotatably mounted on the upper surface of the slide block 42 in a rotatable manner.
The slide block 42 is moved by 3. The slide block 42 has a protrusion on the front surface (the right side in FIGS. 3 and 4), and the pulse motor 43 is attached to the upper surface. The protruding portion is rotatably supported at a tip thereof through a shaft 441 in parallel with a rotation shaft 431 of the pulse motor 43. Rotary shaft 431 and shaft 4 of pulse motor
41 are connected by a toothed belt 433 hung between toothed pulleys 432 and 442 fixed to the ends, respectively, and the rotational force of the rotating shaft 431 is transmitted to the shaft 441.

Reference numeral 44 denotes a lever fixed to the other end of the shaft 441. The forward / reverse rotation of the pulse motor 43 causes
Swing about the shaft 441 as a fulcrum. The other end of the lever 44 is provided with a long hole 443, and a bolt 451 fixed to the side surface of the lifting block 45 is engaged with the long hole 443. A support block 450 is fixed to the distal end surface of the protrusion of the slide block 42, and a rail 452 is vertically fixed to the front surface thereof.
Reference numeral 453 denotes a slider fixed to the rear surface (the left side in FIGS. 3 and 4) of the lifting block 45, which slides up and down along the rail 452.

Reference numeral 46 denotes a cylinder which is mounted vertically downward on the lifting block 45. In this embodiment, a cylinder 46 is provided in the X direction (FIG. 3).
461 and 462 are arranged side by side in the vertical direction. Reference numeral 47 denotes a suction nozzle for sucking and holding components. Two types (for example, for small components and for large components) are arranged corresponding to the cylinders 461 and 462. The small component suction nozzle 471 and the large component suction nozzle 472 are Each nozzle support plate 47
3, 474 are attached downward at one end. The other end of each nozzle support plate 473, 474 is connected to two cylinders 46.
1, 462 each extruded rod 463 (not shown), 4
64, respectively. Each nozzle support plate 4
The guide rods 47 and 474 are provided on the upper surface of the substantially central portion.
5, 476 are fixed upright, respectively, are passed through the lifting block 45, and are fitted to be able to slide up and down. In this way, the suction nozzle 47 performs a lifting operation by rotating the pulse motor 43 by a predetermined amount, swinging the lever 44, and moving the lifting block 45 up and down. In addition, the cylinder 46 causes each of the push rods to perform a push / pull operation, thereby causing a suction nozzle corresponding to the pushed rod to perform a component suction operation.

The structure of the shuttle part 5, which is another main part of the present invention, will be described with reference to FIG. FIG. 5 is a partially cutaway side view showing the configuration of the shuttle unit 5.
The shuttle unit 5 is provided on the base 50 with the Y of the transfer head unit 4.
It is arranged parallel to the direction movement axis. The base 50 is attached to the vicinity of the edge of the table 32 in a horizontal posture, and has a relay plate 501 on its lower surface.
Has a positioning plate 502 at its lower end (FIG. 1). The positioning plate 502 has an L-shaped cross section, and has a role of positioning the component supply device 1 by fixing the rectangular portion to a predetermined position of the component mounting device 7.

Reference numeral 51 denotes a linear moving unit fixed to the upper surface of the base 50.
Parallel to the direction. The linear moving unit 51 includes a ball screw 511 horizontally supported at both ends so as to be rotatable, and a ball nut 512 fitted thereto. The ball nut 512 moves along a guide rail (not shown).
Reference numeral 52 denotes a pulse motor fixed to the lower side of the base 50 via a mounting plate 523, and the rotation shaft 521 and the ball screw 511 are parallel to each other. A toothed belt 524 is wound around a toothed pulley 513 fixed to the tip of the ball screw 511 and a toothed pulley 522 fixed to the rotating shaft 521, and the rotational force of the pulse motor 52 is applied to the ball screw 51.
Transmit to 1.

The shuttle 53 is mounted on the upper surface of the ball nut 512 via a relay block 514.
The shuttle 53 includes a component receiving table 533 supported by four columns 532 standing upright at four corners of the bottom plate 531 and component holding means 54 such as a suction nozzle attached to the component receiving table 533. In this embodiment, a small-diameter suction nozzle 541 and a large-diameter suction nozzle 542 having suction holes fixed upward are provided as component holding means. These two nozzles are arranged in a line in the moving direction of the shuttle 53 (the moving direction of the ball nut 512), and one of the suction nozzles receives a component from the transfer head unit 4 depending on the stop position of the shuttle 53. 543 and 545 are air piping hoses,
Reference numeral 544 denotes an elbow joint for an air pipe, which connects the suction nozzle 542 to a vacuum source (not shown). Although not shown, the suction nozzle 541 is similarly connected to a vacuum source. Reference numeral 546 denotes an air pipe protection cover passed over the linear moving unit 51, and the hose 545 and the like crawl on the upper surface thereof.

Reference numeral 6 denotes a control unit incorporated in the component supply device 1, which controls the elevator unit 2, the tray drawer unit 3, the transfer head unit 4, and the shuttle unit 5. At this time, the control unit 6
Whether the pickup suction nozzle and the reception suction nozzle corresponding to each component are to be large or small is stored in advance in accordance with the component supply order. One of the cylinders 46 is driven according to the component, and the pulse motor 52 is used.
Is rotated in accordance with the component to be received, and one of the suction nozzles is positioned at the component receiving position.

The operation of this embodiment will be described with reference to the drawings. First, the control unit 6 drives the elevator unit 2,
The plate P on which the desired tray is placed is located at the tray pull-out position. Then, the tray drawer 3 is driven, the plate P is pulled out by the engagement / disengagement element 31, and is held at a predetermined position on the table 32. Next, the transfer head unit 4 is driven, and the suction nozzle 47 is positioned on the concave portion of the tray T that picks up the component first. At this time, the control unit 6 stores which suction nozzle picks up the component A to be picked up. For example, if a large component suction nozzle is required at that time, the large component suction nozzle 472 is used. Is positioned at the center of the recess.

The control section 6 drives the cylinder 462 corresponding to the large component suction nozzle 472 and pushes the pushing rod 464 out. When the rod 464 is pushed out, the nozzle support plate 474 is guided by the guide rod 476 and descends, and the large component suction nozzle 472 is used for the component suction operation. Then, the controller 6 controls the pulse motor 43
To rotate the shaft 441 clockwise by a predetermined amount, and swing the lever 44 clockwise by a predetermined amount about the shaft 441 as a fulcrum. The swing of the lever 44 causes the lifting block 45 engaged with the lever 44 to move to the rail 4.
The lower end of the suction nozzle 472 is brought into contact with the upper surface of the component that has descended along the tray 52 and fit into the recess of the tray, and the component A is suction-held by a vacuum source (not shown). After sucking the components, the control unit 6 reversely rotates the pulse motor 43 by a predetermined amount, operates the shaft 441 and the lever 44 counterclockwise, and raises the lifting block 45 along the rail 452.

Next, the control unit 6 moves the transfer head unit 4 XY while holding the component A by suction, and positions the suction nozzle 472 at the component receiving position of the shuttle unit 5. The component A is placed on the suction nozzle on the shuttle side by the lifting and lowering operation of the suction nozzle by the pulse motor 43 described above. At this time, the control unit 6 stores which suction nozzle picks up the component A that the shuttle side is trying to receive, and in this case, the suction nozzle 542 having a large diameter moves the component receiving position from the transfer head unit 4. Then, the pulse motor 52 is rotated reversely by a predetermined amount so as to stop, and the component receiving base 533 is moved. When the component A is placed on the suction nozzle 542, the control unit 6 opens its vacuum circuit to suction the back surface of the component A, and at the same time, releases the vacuum suction of the suction nozzle 472 on the transfer head unit 4 side. The component A is sucked and held on the top. Then, the control unit 6 directly controls the pulse motor 5
2 is rotated by a predetermined amount, the suction nozzle 542 is moved to the component pick-up position of the component mounting apparatus, and stands by there. When a suction nozzle or the like of a component mounting device (not shown) picks up the component A, the control unit 6
The vacuum suction of 2 is released, and the delivery of the component A by the shuttle unit 5 is completed.

When supplying small components, the suction nozzle of the transfer head unit 4 is selectively used for the small component 471 and the suction nozzle of the shuttle unit 5 is selected and used as the small-diameter 541, and the same operation as described above is performed. Parts can be delivered. still,
In the present embodiment, two types of suction nozzles are provided on the transfer head side and the shuttle side. However, more nozzles may be provided if necessary. In addition, when supplying a long component, it is also easy to provide a required number of suction nozzles arranged in a row and perform suction operation at a plurality of locations. Further, although the component holding means of the shuttle unit 5 is of the suction nozzle type in this embodiment, a holding means of a type for holding the component at the nozzle fixing position may be provided.

[0021]

As described above, various components supplied by the tray are picked up and transported by the suction nozzle suitable for each component, and the shuttle that receives the component depending on the type of the component transported is provided by the shuttle. And can be transferred to the component mounting apparatus. Further, since the position of the holding means and the position of the suction nozzle can be adjusted by the control of the control means, the delivery of parts can be ensured. Therefore, it becomes possible to increase the number of kinds of supply components at the time of automatic component supply, and the operation rate of the component supply device is improved.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view showing an embodiment of a component supply device of the present invention.

FIG. 2 is a schematic plan view of the same.

FIG. 3 is a partially broken plan view showing a structure of a transfer head unit.

FIG. 4 is a side view showing a structure of a transfer head unit.

FIG. 5 is a partially cutaway side view showing the structure of the shuttle unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Component supply apparatus 2 Elevator part 3 Tray drawer part 4 Transfer head part 43 Pulse motor 44 Lever 45 Elevating block 46 Cylinder 47 Suction nozzle 5 Shuttle part 52 Pulse motor 53 Shuttle 54 Parts holding means 6 Control part 7 Parts mounting device M magazine P Plate T Tray A Parts

Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B65G 1/04 B25J 15/06

Claims (1)

(57) [Scope of request for utility model registration] 1. A tray on which a plurality of trays on which components are arranged and placed are stacked at regular intervals and supported so as to be able to move up and down, and a component on which components ordered by the component mounting device are placed is located beside the component mounting device. A component feeder that raises and lowers the tray to a predetermined height and transfers the components on the tray to a predetermined position in the component mounting apparatus. The component supply device performs XY movement above the drawn tray to transfer components. A transfer head, a plurality of suction nozzles that are attached to the transfer head so as to be able to move up and down, and suction the components on the tray; a driving unit that causes the suction nozzle to perform a lifting operation; and select a desired nozzle from the plurality of suction nozzles. A shuttle unit for receiving a component transferred by the suction nozzle of the transfer head and transporting the component to a predetermined position of the component mounting apparatus; A plurality of types of holding means attached to the cassette and holding the transferred components in a line in the transport direction; a shuttle drive for reciprocating the shuttle from a component receiving position to a predetermined position of the component mounting apparatus. Means, controlling the selection means and the shuttle driving means according to the type of parts on the tray, selecting at least one suction nozzle corresponding to the selection means and suction-holding, and holding the type corresponding to the part at the part receiving position Control means for positioning the means.