JP2962222B2 - Electronic component mounting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic component mounting apparatus for mounting electronic components stored in a tray on a substrate.

[0002]

2. Description of the Related Art FIG. 6 is a plan view of a conventional electronic component mounting apparatus. A plurality of trays 102a, 102b,..., 102n in which electronic components of different types are stored are arranged in parallel on a replacement table 101 provided behind the electronic component mounting apparatus 100. 103 is a transfer head, 104 is a substrate, 105
Denotes a conveyor for transporting the substrate 104. Next, the operation will be described.

The exchange table 101 is movable in the X and Y directions, and is moved in the X direction to move a tray (for example, tray 102d) storing desired electronic components behind the electronic component mounting apparatus 100. Let it. Next, the exchange table 101
Is advanced to the electronic component mounting apparatus 100 side, and the tray 102d is positioned at the electronic component pickup position by the transfer head 103 (see the chain line in the figure). Then, by moving the transfer head 103 in the XY directions, the electronic components stored in the tray 102d are picked up and transferred and mounted on the substrate 104.

When the type of electronic components to be transferred and mounted on the substrate 104 changes, the exchange table 101 is retracted to the position indicated by the solid line, and is then moved in the X direction. For example, the tray 102a) is moved to the back of the electronic component mounting apparatus 100 in the same manner as described above, and then the exchange table 101 is moved forward to position the tray 102a at the pickup position.
The electronic components stored in the substrate are picked up by the transfer head 103 and transferred and mounted on the substrate 104.

[0005]

As described above, the conventional means is to move the exchange table 101 in which a plurality of trays 102a to 102n are juxtaposed in the X and Y directions, so that a tray in which desired electronic components are stored. 102a to 102n are moved to a pickup position by the transfer head 103. For this reason, there is a problem that the exchange table 101 becomes longer as the number of trays increases, and a longer installation space is required. In addition, there is a problem in that the X-direction stroke of the exchange table 101 when exchanging the tray becomes longer, and the time required for exchanging the tray becomes longer accordingly.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an electronic component mounting apparatus having a compact structure and capable of mounting various kinds of electronic components on a board in a good setup.

[0007]

[0008]

SUMMARY OF THE INVENTION The present invention is directed to a tray storage unit having a plurality of trays for storing electronic components, an insertion / removal device for inserting / removing the tray into / from the tray storage unit, and a tray which is taken out by the insertion / removal device. A first transfer head for picking up an electronic component, an XY-direction moving device for moving the first transfer head in the XY directions, and a suspension stage on which the electronic component picked up by the first transfer head is transferred And a second transfer head that picks up the electronic component on the substage and transfers the electronic component to the substrate positioned at the positioning unit, wherein the tray is detachably attached to the base material. A positioning member for positioning one side of the tray and a long hole are formed in the base material, and one side of the tray is pressed by pressing against the other side of the tray. Pressing means for pressing the positioning member to position the tray at a predetermined position is mounted in this elongated hole so that the mounting position can be adjusted, and the loading / unloading device is disengaged from the base material and moves in the loading / unloading direction of the base material. It was equipped with a hook.

[0009]

According to the present invention, the overall structure of the electronic component mounting apparatus can be reduced in size and size. In addition, by mounting the tray on the base material, it is possible to easily manage trays of various dimensions and mount various types of electronic components on the board in a good setup.

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of an electronic component mounting apparatus according to an embodiment of the present invention, FIG. 2 is a side view of the electronic component mounting apparatus,
FIG. 3 is a rear view of a tray storage section of the electronic component mounting apparatus, FIG. 4 is a perspective view of a moving mechanism of a first transfer head provided in the electronic component mounting apparatus, and FIG. It is a perspective view of a base material.

1 and 2, the electronic component mounting apparatus includes an automatic tray exchange apparatus A. The automatic exchange device A for this tray is composed of a tray storage section B and a table device C. This electronic component mounting device
The tray 3 stored in the tray storage section B is pulled out to a table device C provided on a pickup stage for electronic components, and the electronic components P stored in the tray 3 are moved onto the substage D by the first transfer head 33. Then, the electronic component P on the substage D is transferred and mounted on the substrate 63 positioned at the positioning portion E composed of the XY tables 61 and 62 by the second transfer head 60.

Next, the tray storage section B will be described. 1 to 3, reference numeral 1 denotes a box-shaped magazine, in which a plurality of trays 3 mounted on a base material 2 are vertically stacked and stored. FIG. 5 shows the base material 2,
The base member 2 has a plate shape, and a tray 3 is detachably mounted on an upper surface thereof. Reference numeral 5 denotes a positioning member for positioning the front side of the tray 3, and is formed by partially cutting and raising the base material 2. Reference numeral 6 denotes a detachable stopper for fixing the rear side of the tray 3. Reference numeral 8 denotes a slot into which the stopper 6 is mounted, and the mounting position of the stopper 6 can be adjusted according to the size of the tray 3.

The tray 3 is placed on the base material 2 and the tray 3
The tray 3 is positioned at a predetermined position on the base material 2 by pressing a stopper 6 which can be moved forward and backward with respect to the rear side of the tray 3 against the rear side of the tray 3 and presses the front side of the tray 3 against the positioning member 5. I do. That is, the stopper 6 serves as pressing means for pressing the front side of the tray 3 against the positioning member 5. By mounting the tray 3 on the base member 2 and integrating the tray 3 and the base member 2 in this manner, it is possible to easily manage the trays 3 of various dimensions and mount various kinds of electronic components on a substrate. it can. Further, by providing such positioning portions 5 and the stoppers 6, the base member 2 can be widely used for trays having various dimensions. Generally, electronic components of different types are stored in trays of different dimensions. Further, the front wall 2a is bent upward with the front edge of the base member 2 to form a front wall 2a. As will be described in detail later, the engaging and disengaging element 50 of the engaging and disengaging device is disengaged from the front wall 2a. Instead of the positioning member 5, the front wall 2a may be a positioning member for positioning the front side of the tray 3.

1 and 3, reference numeral 10 denotes a lower frame of the tray storage section B, 11 denotes an upper frame, and the magazine 1 is disposed therein. M1 is a motor mounted on the upper frame 11, and 13 is a timing belt driven by the motor M1 and rotated along timing pulleys 14, 15, and 16. The timing pulleys 15 and 16 are provided on both sides of the upper frame 11, and feed screws 17 and 18 driven by the pulleys 15 and 16 are attached to the upper frame 11.
It is suspended along both side walls. This feed screw 1
Feed nuts 19 and 20 are screwed to the nuts 7 and 18, and the feed nuts 19 and 20 are integrally provided with brackets 21 and 22, respectively.

On the upper surface of the magazine 1, two shafts 2
3 and 24 are provided horizontally, and both side portions thereof are supported by the brackets 21 and 22. Therefore, the motor M1
Are rotated forward and backward, the feed screws 17 and 18 rotate, and the feed nuts 19 and 20 move up and down along the feed screws 17 and 18, so that the magazine 1 moves up and down. That is, the motor M1, the feed screws 17, 18, the feed nuts 19, 20 and the like constitute a lifting device for the magazine 1. By raising and lowering the magazine 1 in this manner, the tray 3 pulled out onto the table device C is set at the same level as the table device C, and the tray 3 is pulled out onto the table C by a loading / unloading device (described later). That is, the magazine 1 and its lifting / lowering device are selection means for selecting the tray 3 to be pulled out onto the table device C which is a pickup stage for electronic components.

Next, the table device C will be described. 1 and 2, reference numerals 30 and 31 denote arms extending to the front of the tray storage section B, and the base member 2 on which the tray 3 is mounted is moved between the arms 30 and 31 by a drawer described later. Is pulled out on the plate-shaped support member 7 provided in the first position.

Reference numeral 32 denotes a cover plate extending over the arms 30, 31, and reference numeral 33 denotes a first transfer head. The first transfer head 33 extends toward the substage D. As shown in FIGS. 2 and 4, the first transfer head 33
Is attached to a slider 34, and the slider 34 is slidably mounted in the X direction on a rail 35 provided inside the cover plate 32.

FIG. 4 shows a drive system of the first transfer head 33 provided below the table device C.
37, 38 are sliders attached to both ends of the rail 35. The sliders 37, 38 are guide rods 39, 40 provided inside the arms 30, 31, respectively.
Is mounted so as to be slidable in the Y-direction along the line. MX is X
Direction drive motor, 42 is an X-axis winding drum, MY is a Y-direction driving motor, 43 is a Y-axis winding drum.
An X-direction wire 44 and a Y-direction wire 45 are wound around the wires 2 and 43, respectively.

The X-direction wire 44 is tuned to a bearing 34 provided on the slider 34, the sliders 37, 38, and the like. Slider 3 on which mounting head 33 is mounted
4 slides in the X direction along the rail 35. The Y-direction wire 45 is aligned with a bearing 49 provided at a corner or the like of each of the frames 47 and 48. When the Y-direction drive motor MY rotates forward and backward, the sliders 37 and 38 move the guide rods 39 and 38. The slider 3 moves in the Y direction along
The first transfer head 33 connected to 7, 38 also moves in the same direction. That is, the motors MX and MY, the slider 34,
Rail 35, sliders 37, 38, guide rods 39, 4
0, the winding drums 42 and 43, the wires 44 and 45, the bearings 46 and 49, etc., constitute a device for moving the first transfer head 33 in the XY directions.

1 and 2, reference numeral 50 denotes a base material 2;
Of the above-mentioned front wall 2a. This hook 5
Numeral 0 is rotatably supported by a pin 51, and an extender 53 extending downward therefrom is connected to a rod 5 of a cylinder 54.
4a. In addition, the engagement element 50 is urged by a spring member 55 in a direction (clockwise in FIG. 2) separating from the front wall 2a. When the cylinder 54 operates and the rod 54a projects, the engaging / disengaging element 50 rotates counterclockwise against the spring force of the spring member 55 and engages with the front wall 2a. When the cylinder 54 stops operating, the engagement / disengagement 50
Is rotated upward by the spring force of the spring material 55, so that the front wall 2a
Break away from That is, the cylinder 54, the spring member 55, and the like constitute an engaging and disengaging device.

In FIG. 2, reference numeral 56 denotes a belt located below the support member 7 and adjusted by a pulley 57; M2, a driving motor; and 58, a movable element attached to the belt 56. The cylinder 54 is attached to the moving element 58, and the driving element M2 drives the engaging and disengaging element 50 to pull the base member 2 on which the tray 3 is mounted and move in the Y direction. That is, the belt 56, the pulley 57, the moving element 5
8. The motor M2 and the like constitute a loading / unloading device for pulling out the tray 3 stored in the magazine 1 to the substage D side and storing it in the magazine 1.

This apparatus has the above-described configuration, and the operation will be described next. When the motors MX and MY are driven, the first transfer head 33 moves in the X and Y directions, picks up the electronic components P stored in the tray 3 and transfers them to the substage D. Next, after detecting the displacement of the electronic component P on the substage D by a camera (not shown), the second
Transfer head 60 picks up this electronic component P,
It is transferred and mounted on the substrate 63.

When the type of the electronic component P mounted on the board 63 changes, or when the electronic component P on the tray 3 is out of stock, the tray 3 is replaced as follows. That is,
First, the motor M1 is driven to move the magazine 1 up and down, and the blank space in the magazine 1 (the blank space where the base material 2 does not exist) is opposed to the used tray 3 on the support material 7 (see FIG. 2). When the motor M2 is driven, the engagement / disengagement
0 moves to the magazine 1 side, and the tray 3 which has been used up to that time is transferred to the magazine 1 together with the base material 2 on which the tray 3 is mounted.
And the disengagement element 50 rotates upward and separates from the front wall 2a.

Next, when the motor M1 is driven, the magazine 1 moves up and down, and the tray 3 in which the desired electronic components P are stored faces the engaging element 50. Then, the cylinder 54 operates to engage the engaging element 50 with the front wall 2a, and then, when the motor M2 is driven, the base member 2 is pulled by the engaging element 50 and pulled out onto the support member 7, and thereafter. Similarly, the electronic components P on the tray 3 are transferred to the substage D by the first transfer head 33, and the second transfer head 60
Is transferred and mounted on the substrate 63.

The present invention is not limited to the above-described embodiment. For example, the specific structure of the tray storage section can be variously considered in addition to the above-described embodiment.

[0026]

According to the present invention, the overall structure of the electronic component mounting apparatus can be reduced in size and size. In addition, by mounting trays of various sizes on the base member, the trays can be easily managed. Moreover, since the pressing means is pressed against the other side of the tray and one side of the tray is pressed against the positioning member, and the tray is mounted on the base material,
Various sizes of trays can be mounted on the base material. Therefore, various sizes of trays can be mounted on the same base material, and various kinds of electronic components can be mounted on the board with good setup.

[Brief description of the drawings]

FIG. 1 is a perspective view of an electronic component mounting apparatus according to an embodiment of the present invention.

FIG. 2 is a side view of the electronic component mounting apparatus according to the embodiment of the present invention;

FIG. 3 is a rear view of a tray storage unit of the electronic component mounting apparatus according to the embodiment of the present invention;

FIG. 4 is a perspective view of a moving mechanism of a first transfer head provided in the electronic component mounting apparatus according to the embodiment of the present invention;

FIG. 5 is a perspective view of a base material of the electronic component mounting apparatus according to the embodiment of the present invention;

FIG. 6 is a plan view of a conventional electronic component mounting apparatus.

[Explanation of symbols]

 Reference Signs List A Automatic tray exchange device B Tray storage unit C Table device 1 Magazine 2 Base material 3 Tray 5 Positioning member 6 Stopper (pressing means) 8 Long hole 33 First transfer head 60 Second transfer head 63 Substrate

Continuation of front page (58) Fields investigated (Int. Cl. ⁶ , DB name) B23P 19/00 301 B23P 21/00 305 B65G 1/00 535 H05K 13/04

Claims (1)

(57) [Claims] A tray accommodating section provided with a plurality of trays for accommodating electronic components; a loading / unloading device for inserting / removing the tray into / from the tray accommodating section ; Transfer head and XY for moving the first transfer head in the XY directions
Direction moving device and first transfer head picked up
Saz stage where electronic components are transferred and on sub-stage
Electronic components are picked up and
An electronic component mounting apparatus comprising: a second transfer head for transferring a tray onto a base material, wherein the tray is removably mounted on a base material, and one side of the tray is positioned on the base material. A member and a long hole are formed, and pressing means for pressing one side of the tray against the positioning member by pressing against the other side of the tray to position the tray at a predetermined position can adjust the mounting position to the long hole. Put on and before
A storage device for engaging and disengaging the base material;
An electronic component mounting apparatus comprising: an engaging and disengaging element that moves in a loading / unloading direction .