JPH1070398A - Part mounter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a part mounter comprising a plurality of part feeding sections and mounting heads in which part mounting work can be carried out efficiently regardless of the size of a board. SOLUTION: A linear guide 59 extending in X direction is set on a fixing base at a board holding section and a slider 60 15 provided movably. A knob 61 for securing the slider 60 is also provided. An air cylinder 58 is disposed on the slider 60 while directing upward and the rod 58a thereof is provided, at the forward end thereof, with a stopper 57 for stopping a board 23 while engaging with the forward fringe part thereof. Consequently, the position of the stopper 57 and the air cylinder 58 can be altered freely in the direction of X-axis such that the stopper 57 is shifted leftward for a large size board 23 but shifted rightward for a small size board 23. In any case, the board 23 is stopped at an intermediate part between first and second part feeding sections.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component comprising a plurality of component supply units and a plurality of mounting heads corresponding to the plurality of component supply units, the component mounting operation being performed on one substrate by the plurality of mounting heads. It relates to a mounting device.

[0002]

Problems to be Solved by the Invention FIGS. 16 to 19
1 shows a schematic configuration of a component mounting apparatus 1 of this type.
Here, a substrate transport path 4 for transporting the substrate 3 is provided on the main body base 2 and extends in the entire left-right direction (X-axis direction). The substrate transport path 4 is composed of three parts: a right-side loading part 4a, a left-side discharging part 4b, and an intermediate substrate holding part 5, and the substrate 3 is provided with a belt conveyor (not shown) provided in each part. By the mechanism, the substrate is transported on the substrate transport path 4 in the direction of arrow A from the loading position at the right end to the unloading position at the left end in the figure.

A stopper 6 for stopping the substrate 3 fed in the direction of arrow A from the carry-in position is provided at the left end of the substrate holder 5 in the drawing. The stopper 6 is projected by an air cylinder (not shown) when the substrate 3 is carried in, and is retracted when the substrate 3 is carried out. The substrate holding unit 5 holds the substrate 3 stopped by the stopper 6 in a positioning state. However, the substrate holding unit 5 is unitized as a whole. Are freely movable in the front-rear direction (Y-axis direction) based on the XY coordinate system described above.

On the other hand, a first component supply unit 8 is provided on the near side of the substrate transfer path 4 on the side of the carry-in section 4a (right side) and on the side of the carry-out section 4b (left side). Two component supply units 9 are provided. Each of the first and second component supply units 8 and 9 is configured by mounting a large number of component feeders (tape feeders) 10 for each component type in the X-axis direction on a feeder base.

Further, a first mounting head 11 for taking out predetermined components from the first component supply section 8 and mounting them on the substrate 3 (surface mounting) is provided above the main body base 2. In addition, a second mounting head 12 for taking out predetermined components from the second component supply unit 9 and mounting the components on the substrate 3 is provided. These first and second mounting heads 11 and 12 are respectively provided with a first X-axis linear moving mechanism 13.
The second X-axis linear movement mechanism 14 allows the apparatus to move freely in the left-right direction (X-axis direction) based on the XY coordinate system unique to the apparatus.

A control device (not shown) composed of a microcomputer or the like controls each of the above mechanisms in accordance with a mounting program and component mounting data (such as coordinate data of a component mounting point on the board 3) stored in advance, and mounts components on the board 3. The work is performed automatically. At this time, at the time of mounting components, the mounting heads 11 and 12 move to perform alignment in the X-axis direction, and regarding mounting of the mounting heads 11 and 12 and the substrate 3 in the Y-axis direction, The movement is performed by moving the substrate holding unit 5 (substrate 3) side by the linear moving mechanism 7.

In this case, the two mounting heads 11 and 12 are operated alternately, that is, one of the mounting heads 11 and 12 is operated.
The other mounting heads 12, 11
Work to mount components on the board 3
By performing the mounting heads 11 and 12 alternately, an extremely efficient component mounting operation with little time loss is performed.

However, in the above, the substrate 3
Depending on the size (external dimensions), efficient component mounting work may not always be possible. That is, as shown by a two-dot chain line in FIG. 20, when the size of the board 3 is relatively large, the first component supply unit 8 and the second
Are symmetrical in the X-axis direction, that is, at substantially the same distance, so that the movement distance between the first mounting head 11 and the second mounting head 12 and, consequently, the time required for the movement are substantially equal. Become.

However, when the size of the substrate 3 'is small as shown by the solid line in FIG.
Is biased toward the second component supply unit 9 side. For this reason, the first component supply unit 8 is
Is located far away and the second component supply unit 9 is located close to the first mounting head 1 compared to the second mounting head 12.
Therefore, the moving distance of 1 is long, and the time required for moving is long. As a result, the time required for transporting (extracting) components by the first mounting head 11 becomes longer, and a waiting time is created on the second mounting head 12 side, thereby lowering work efficiency.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an apparatus having a plurality of component supply units and mounting heads, which enables efficient component mounting work regardless of the size of a substrate. It is an object of the present invention to provide a component mounting apparatus capable of performing the above.

[0011]

According to a first aspect of the present invention, there is provided a component mounting apparatus comprising: a transport mechanism for transporting a substrate from a loading position to an unloading position on a substrate transport path; and a stopper at an intermediate portion of the substrate transport path. A substrate stop mechanism for projecting onto the substrate transfer path to lock and stop the substrate, a substrate holding mechanism for positioning and holding the substrate stopped by the substrate stop mechanism, and the loading near the substrate transfer path. A first component supply unit provided on a position side for supplying a mounted component, a second component supply unit provided on the unloading position side near the substrate transfer path and supplying a mounted component, and the substrate holding mechanism. A first mounting head that moves between a held substrate and the first component supply unit to perform a component mounting operation on the substrate, a substrate held by the substrate holding mechanism, and the second component supply Between departments Moving to and a second mounting head for component mounting operation for the substrate, having characterized in that said substrate stop mechanism and repositionable configured in the substrate conveying direction of the stopper.

According to this, by changing the position of the stopper in the substrate transfer direction, the position where the substrate is positioned and held by the substrate holding mechanism is changed in the substrate transfer direction. It is possible to approach the first component supply unit side or approach the second component supply unit side on the unloading position side. Therefore, even if the size of the board changes, the distance between the board and the first and second component supply units can be equalized by changing the position of the stopper.

At this time, the substrate stopping mechanism includes a linear moving mechanism for moving the stopper in the substrate transport direction, and the position of the stopper is changed by the linear moving mechanism according to the size of the substrate. (The component mounting apparatus of claim 2). According to this, it is possible to automatically change the position of the stopper according to the size of the substrate.

Further, the substrate stopping mechanism may be provided with a plurality of stoppers in the substrate transport direction, and the stoppers may be selectively operated according to the size of the substrate. Mounting device). According to this, the position of the stopper can be automatically changed according to the size of the substrate.

Alternatively, the substrate stopping mechanism includes a rotary table to which a plurality of stoppers are attached, and rotates the rotary table according to the size of the substrate to change the position of the stopper. It is also possible (the component mounting apparatus of claim 4). According to this, after all,
The position of the stopper can be automatically changed according to the size of the substrate.

Further, the substrate stopping mechanism includes a plurality of stoppers provided so that the locking surface of the substrate has a step shape in the protruding direction, and the amount of protrusion of the stopper is changed according to the size of the substrate. Such a configuration is also possible (the component mounting apparatus of claim 5). According to this, the position of the stopper can be automatically changed according to the size of the substrate.

In the component mounting apparatus according to any one of the first to fifth aspects, the substrate holding position can be sequentially moved from the loading position to the unloading position. Therefore, the component mounting operation may be performed in order from the region on the front end side in the transport direction of the substrate while moving the substrate (the component mounting apparatus according to claim 6). According to this, it is possible to substantially expand the work area for component mounting as compared with the case where the component mounting work is performed by stopping the board at one place.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Some embodiments of the present invention will be described below. (1) First Embodiment First, a first embodiment (corresponding to claim 1) of the present invention will be described with reference to FIGS.

FIGS. 6 to 9 show a schematic configuration of a component mounting apparatus 21 according to the present embodiment. Here, a board extends on the main body base 22 in the left-right direction (X-axis direction). A substrate transport path 24 for transporting the substrate 23 is provided. More specifically, as shown in FIG. 8, the substrate transport path 24 includes a right loading section 24a and a left loading section 24 in the drawing.
b, three parts of the intermediate substrate holding part 25. The substrate 23 is moved from the carry-in position at the right end in FIG.
In the direction, is stopped by the board holding unit 25, the component mounting operation is performed, and then is sent toward the unloading position at the left end in the figure.

At this time, although not shown in detail, both the carry-in portion 24a and the carry-out portion 24b are provided with a pair of guide rails 26 for guiding the substrate 23 so as to sandwich the substrate 23 and an illustration for feeding the substrate 23 in the direction of arrow A. And a belt conveyor mechanism that is not provided. Among them, the carry-in section 24a is provided with a standby stopper 27 (see FIG. 8) for keeping the substrate 23 at the standby position.

As will be described in detail later, the substrate holding section 25 is entirely unitized and has a mechanism for stopping the substrate 23 at a predetermined position, a mechanism for holding the substrate in a positioning state, and the like. It has. The substrate holding unit 25 holds the substrate 23 in the front-rear direction (Y-axis direction) based on the XY coordinate system unique to the device by the Y-axis linear moving mechanism 28 provided on the main body base 22. It can be moved freely.

On the other hand, in front of the substrate transfer path 24 on the main body base 22, the carry-in portion 24a side (the carry-in position side).
A first component supply unit 29 for supplying the mounted components is provided at a position, and a second component supply unit 30 for supplying the mounted components at the unloading unit 24b side (unloading position side) is provided. Is provided. These first and second component supply units 29,
Numeral 30 includes a plurality of component feeders (tape feeders) 31 for each component type arranged side by side in the X-axis direction on a feeder base.

As is well known, the tape feeder 31
Is configured to feed a long tape holding a large number of chip components at predetermined intervals at a predetermined pitch so that the components are supplied one by one to a component supply position at the leading end. In this case, in each of the component supply units 29 and 30, the component supply positions are arranged in a straight line in the X-axis direction, and the component supply positions are the first component supply unit 29 side and the second component supply position. Is slightly displaced in the Y-axis direction with respect to the component supply unit 30 side.

Further, as shown in FIGS. 6 and 7, a first component for taking out a predetermined component from the first component supply unit 29 and mounting (mounting) it on the substrate 23 is provided above the main body base 22. And a mounting head 32 of
A second mounting head 33 for taking out predetermined components from the second component supply unit 30 and mounting them on the substrate 23 is provided. These first and second mounting heads 32 and 3
3 can be freely moved in the left-right direction (X-axis direction) based on an XY coordinate system unique to the device by a first X-axis linear movement mechanism 34 and a second X-axis linear movement mechanism 35, respectively. ing.

Although not shown or described in detail, each of the mounting heads 32 and 33 includes a suction nozzle 36 (see FIG. 6) for sucking and holding a component, and the suction nozzle 36 thereof.
Is provided with an up-down drive mechanism for moving up and down. In the present embodiment, each of the mounting heads 32, 33
Are provided with two suction nozzles 36, respectively.

Each of the mechanisms described above is controlled by a control device (not shown) including a microcomputer and the like, and a mounting program stored in advance and component mounting data (coordinate data of a component supply position and a component Control according to coordinate data of a component mounting point). As a result, the substrate 23 is sent to the substrate holding unit 25 and stopped, and the components are taken out from the component supply units 29 and 30 by the mounting heads 32 and 33 and mounted on the substrate 23 (surface mounting). The component mounting operation such as unloading the board 23 is automatically executed.

At this time, as shown in FIG. 9, when mounting components, the mounting heads 32 and 33 move to
Alignment in the axial direction is performed, and alignment in the Y-axis direction between the mounting heads 32 and 33 and the substrate 23 is performed by moving the substrate holding unit 25 (substrate 23) side by the Y-axis linear movement mechanism 28. It has become. Further, the two mounting heads 32, 33 are operated alternately, that is, the other mounting heads 33, 32 mount components on the substrate 23 while the other mounting heads 32, 33 take out components. Are performed alternately so that an efficient component mounting operation is performed.

Referring to FIG.
This will be described in detail with reference to FIG. This substrate holding part 2
5 includes a fixed guide rail 37 extending in the X-axis direction and a movable guide rail 38 provided in parallel with the fixed guide rail 37 in front of the fixed guide rail 37, as shown in FIGS. The fixed guide rail 37 is shown in FIGS.
As shown in FIG. 2, the mounting base 39 is provided so as to extend between a pair of fixed brackets 40 erected on both right and left ends of the mounting base 39.

The fixed brackets 40, 40
Pulleys 41 are respectively provided on the upper portions of the belts, and a belt 42 for transporting the substrate 23 is stretched between the pulleys 41 and 41. The one pulley 41 is rotatably driven by an AC motor 43 with a speed reducer (see FIG. 3).

On the other hand, the movable guide rail 38 is provided so as to extend between a pair of movable brackets 44 (only one is shown) provided so as to correspond to the fixed brackets 40, 40. As shown in FIG. 3, similarly to the fixed bracket 40, these movable brackets 44 have pulleys 4 for transporting the substrate 23 thereon.
5, an AC motor 47 with a belt 46 and a speed reducer are attached. Each of these movable brackets 44 is supported by a linear guide 48 provided on the mounting base 39 so as to extend in the Y-axis direction so as to be movable in the Y-axis direction.

Further, a ball screw nut 5 screwed into a ball screw 49 is provided at a lower portion of each movable bracket 44.
0 is provided. Each ball screw 49 includes a bearing 51 provided on the fixed bracket 40 facing the movable bracket 44 in the Y-axis direction, and a bearing provided on the mounting base 39 on the opposite side (the right side in FIG. 3) of the fixed bracket 40. Part 5
2 rotatably supported. A timing pulley 53 is provided at the base end (the right end in FIG. 3) of each ball screw 49.
A timing belt 54 is stretched between them. Also,
A width changing handle 55 is provided at the tip (the left end in FIG. 3) of the ball screw 49.

When the width changing handle 55 is rotated, the movable brackets 44 and, consequently, the movable guide rails 38 are moved in parallel in the Y-axis direction, whereby the width between the movable brackets 44 and the fixed guide rails 37 is changed. It has become so. The substrate 23 has a fixed guide rail 37 whose width is adjusted according to its width (length in the Y-axis direction).
It is guided in a form sandwiched between the movable guide rail 38 and the movable guide rail 38, and is moved in the X-axis direction (the direction of arrow A).
Incidentally, the mounting base 39 is provided with the Y-axis linear moving mechanism 28.
And the entire substrate holding unit 25 is moved in the Y-axis direction.

The substrate holding section 25 is provided with a substrate stopping mechanism 56 for stopping the conveyed substrate 23, located between the fixed guide rail 37 and the movable guide rail 38. . As shown in FIGS. 1 to 4, the substrate stopping mechanism 56 includes a stopper 57 for locking and stopping the leading edge of the substrate 23 to be conveyed, and an air cylinder for moving the stopper 57 out and out. 58
And a mechanism for freely changing the positions of the stopper 57 and the air cylinder 58 in the X-axis direction.

That is, a linear guide rail 59 extending in the X-axis direction is provided on the inner side of the movable guide rail 38 so as to be bridged between the movable brackets 44.
A slider 60 is provided movably along the linear guide rail 59. A fixing knob 61 for fixing the slider 60 to the linear guide rail 59
Is provided. The air cylinder 58 is attached to the slider 60 upward.

The stopper 57 is provided at the distal end of the rod 58a of the air cylinder 58, protrudes upward when the air cylinder 58 is operated (turned on), and is positioned on the substrate transport path 24 (FIGS. 1, 3). , 4) and the air cylinder 58 is turned off so as to be immersed downward from the substrate transfer path 24 (see FIG. 2). With this, the stopper 5
7 slides the slider 6 by loosening the fixing knob 61.
0, is moved in the X-axis direction, and is fixed at that position by tightening the fixing knob 61. Thus, as shown in FIG. 5, the stop position of the substrate 23 and thus the holding position in the X-axis direction can be freely changed. It becomes possible.

As shown in FIGS. 1 and 4, a board detection sensor 62 is mounted on the side of the air cylinder 58 via a mounting bracket 63. The board detection sensor 62 is composed of, for example, a reflection type photoelectric switch, and
Is stopped by contacting the stopper 57. The motors 43 and 47 are controlled by a signal from the substrate detection sensor 62, and the feed operation of the substrate 23 is stopped after the stopper 57 detects that the substrate 23 has been stopped.
This board detection sensor 62 is also integrated with the stopper 57 by X
The position is changed by moving in the axial direction.

Although not shown, the substrate holder 25
Positioning pins for positioning and fixing the substrate 23 by being inserted into positioning holes of the substrate 23 stopped by the stopper 57, and backup pins for supporting the lower surface of the substrate 23 and receiving pressure during component mounting. Is also provided.

Next, the operation of the above configuration will be described. When performing a component mounting operation on a new type of board 23, first, first and second
Feeder 31 in the component supply units 29 and 30
Determine the layout and install. The arrangement of the tape feeder 31 is such that the tape feeder 31 is distributed between the first component supply unit 29 and the second component supply unit 30 so that the number of supplied components is equal, The tape feeder 31 is determined to be closer to the center.

Then, the respective average distances of the first component supply unit 29 and the second component supply unit 30 to the component mounting points on the substrate 23, and thus the first mounting head 32 and the second
Of the mounting head 33 is determined, the stop position of the substrate 23, that is, the position of the stopper 57 in the X-axis direction is determined so that the average movement distance is equal, and the positioning is performed so that the stopper 57 comes to that position. (Position change).

At this time, as shown in FIG. 5, when the size of the substrate 23 is large, as shown in FIG. 5A, the position of the stopper 57 is shifted to the left, and when the size of the substrate 23 is small, (B), the position of the stopper 57 is closer to the right than that, and in any case, the substrate 23 is stopped at a substantially intermediate portion between the first component supply unit 29 and the second component supply unit 30. Position.

Thereafter, the component mounting operation is performed. In this component mounting operation, first, the board 23 is fed from the loading position in the direction of arrow A on the board transfer path 24, and the stopper 57 that is protruding is operated. , And is positioned and held by the substrate holding unit 25. In addition, one substrate 2
While the component 3 is being mounted on the board holding unit 25, the next board 23 is stopped at the standby position by the standby stopper 27 in the loading unit 24a.

In the component mounting operation on the substrate 23 held by the substrate holding unit 25, the components are taken out from the first and second component supply units 29 and 30 by the first and second mounting heads 32 and 33, respectively. The transfer and mounting on the substrate 23 is performed by alternately executing the transfer. That is,
While one of the mounting heads 32, 33 takes out components, the other mounting heads 33, 32 alternately mount components on the substrate 23. At this time, the component mounting point is aligned in the Y-axis direction by moving the substrate holding section 25 (substrate 23) side by the Y-axis direction moving mechanism 28.

Here, as described above, depending on the size of the substrate 23, the position of the stopper 57 in the substrate transport direction, that is,
When the position where the substrate 23 is stopped is changed and the size of the substrate 23 is large, as shown in FIG.
When the stop position of the substrate 3 is closer to the second component supply unit 30 and the size of the substrate 23 is small, as shown in FIG. The part 29 side.

Thus, the distance between the board 23 on the board holding unit 25 and the first component supply unit 29, ie, the distance of one movement of the first mounting head 32, and the distance between the board 23 and the second component The distance from the supply unit 30, that is, one of the second mounting heads 33
And the moving distance of each time become equal. As a result, the time required for one movement of the first mounting head 32 and the second mounting head 33 becomes uniform, so that one of them takes a long time to move and the other does not have a waiting time. In addition, an efficient component mounting operation can be performed by the two mounting heads 32 and 33.

When the component mounting operation on one board 23 is completed, the board 23 is unloaded in the direction of arrow A toward the unloading position. At this time, when the substrate 23 is carried out, the stopper 57 is operated to the retracted position by the air cylinder 58. Then, after the carry-out, the stopper 57 is protruded, the new board 23 waiting at the waiting position is carried into the component holding unit 25, and the same operation as described above is performed.

As described above, according to this embodiment, the stopper 57 for stopping the substrate 23 is provided in the apparatus provided with the plurality of component supply units 29 and 30 and the mounting heads 32 and 33.
Is provided so that the position in the transport direction can be changed. Therefore, unlike the conventional one in which the position of the stopper 6 is fixed and the stop position of the substrate 3 is biased,
Irrespective of the size of the substrate 3, the distance between the substrate 23 and the first and second component supply units 29, 30 can be equalized. It is possible to obtain an excellent practical effect that a complicated component mounting operation can be performed.

(2) Second Embodiment Next, a second embodiment (corresponding to claim 2) of the present invention will be described with reference to FIGS. In the following embodiments, the same parts as those in the first embodiment will be denoted by the same reference numerals, new illustration and detailed description will be omitted, and only different points will be described.

FIG. 10 shows the structure of the substrate stopping mechanism 71 provided on the mounting base 39 of the substrate holding mechanism 25. Here, the substrate stopping mechanism 71 moves the stopper 72 in the substrate transport direction (X-axis direction). The apparatus is provided with a linear movement mechanism 73 for freely moving.

That is, as shown in FIG. 11, a moving block 74 is movably supported by a linear guide rail 59 provided on the mounting base 39 so as to extend in the X-axis direction. A stopper 72 is provided on the moving block 74 so as to be able to move up and down, and a pin cylinder 75 for moving the stopper 72 up and down.
Is provided. The pin cylinder 75 is connected to an air supply source (not shown) via a pipe 75a (shown only in FIG. 11) penetrating one side of the moving block 74.

On the other hand, above the linear guide rail 59, a ball screw 76 is provided extending in the same direction. This ball screw 76 has bearing portions 77, 77 at both ends.
, And a pulse motor 79 is connected to one end thereof via a coupling 78. The moving block 74 includes a ball screw nut 80 screwed to the ball screw 76.
As shown in FIG. 11, a substrate detection sensor 62 is attached to the stopper 72.

Thus, the linear moving mechanism 73 can freely move the moving block 74 and thus the stopper 72 in the X-axis direction by rotating the pulse motor 79. At this time, the pulse motor 79 is
The control device controls the pulse motor 79 in accordance with the input size information of the substrate 23, and moves the position of the stopper 72 to the first mounting head 32 and the first mounting head 32. The second mounting head 33 is changed so as to be at the stop position of the substrate 23 in which the moving distance of the mounting head 33 is uniform.

In this embodiment, as in the first embodiment, the distance between the substrate 23 and the first and second component supply portions 29 and 30 can be equalized. As a result, an efficient component mounting operation can be performed regardless of the size of the substrate 23. In this embodiment, since the linear movement mechanism 73 for automatically changing the position of the stopper 72 in accordance with the size of the substrate 23 is provided, the operation of changing the position of the stopper by the operator is not required, and further use is possible. It will be easier.

(3) Third to Fifth Embodiment FIG. 12 shows a third embodiment (corresponding to claim 3) of the present invention. In this embodiment, a plurality of, in this case, two stoppers 81 are provided at different positions in the X-axis direction in the substrate holding portion 25.
And 82, and the stoppers 81 and 82 are selectively operated. That is, when the size of the substrate 23 is relatively large, the stopper 81 on the left side in the figure is operated, and when the substrate 23 is relatively small, the stopper 82 closer to the right is operated.

According to this, the stop position can be changed according to the size of the substrate 23 as well.
The distance between the first and second component supply units 29 and 30 can be equalized. As a result, an efficient component mounting operation can be performed regardless of the size of the substrate 23. Also, the stop position can be automatically changed according to the size of the substrate 23. still,
In this case, it goes without saying that three or more stoppers may be provided.

FIG. 13 shows a fourth embodiment (corresponding to claim 4) of the present invention. In this embodiment, a plurality of stoppers 83 in this case are mounted on the rotary table 84, and the position of the stopper 83 (stop position of the substrate 23) is changed by rotating the rotary table 84. I have to.

That is, four mounting grooves 85 are radially provided at 90 ° intervals on the upper surface of the circular rotary table 84, and three screw holes 85a are formed in each mounting groove 85 in the radial direction. ing. On the other hand, the stopper 83 has an L-shape such that a bottom plate portion fits into the mounting groove 85, and an elongated hole 83a is formed in the bottom plate portion. Each stopper 83 has a long hole 83a in a state where the bottom plate portion is fitted in each mounting groove 85.
Is attached to the turntable 84 by screwing the screw 86 into the screw hole 85.
The stoppers 83 are mounted so that the positions of the rising walls are different from each other in the radial direction.

The rotary table 84 is freely rotated by a rotary drive mechanism 87 having a motor, and is moved up and down by a vertical cylinder 88 together with the rotary drive mechanism 87. . The substrate 23 is stopped by the stopper 83 at the position indicated by B in the figure with the turntable 84 raised. Thus, by rotating the rotary table 84 in accordance with the size of the substrate 23, one of the four stoppers 83 is moved to the position B, and the stop position of the substrate 23 is changed.

According to this, the stop position can be changed in accordance with the size of the substrate 23 as well.
The distance between the first and second component supply units 29 and 30 can be equalized. As a result, an efficient component mounting operation can be performed regardless of the size of the substrate 23. In addition, the stop position can be automatically changed according to the size of the substrate 23.

FIG. 14 shows a fifth embodiment (corresponding to claim 5) of the present invention. In this embodiment, the stopper 89 having a step shape is configured to be freely moved up and down by a linear actuator 90. In this case, the stopper 89 is provided with three locking surfaces 89a, 89b, 89c for locking and stopping the substrate 23 in a stepwise manner from the bottom.

The locking surface 89a is located on the rightmost side in the figure, the locking surface 89b is located in the middle, and the locking surface 89 is located on the leftmost side in the figure. Thus, the stop position of the substrate 23 is changed by changing the amount by which the linear actuator 90 raises the stopper 89 (the amount of protrusion on the substrate transfer path 24) according to the size of the substrate 23.

Therefore, also in this embodiment, the substrate 23
The stop position can be changed according to the size of
Efficient component mounting work can be performed irrespective of the size of the substrate 23, and the stop position can be automatically changed according to the size of the substrate 23. Since only 89 is required, there is an advantage that the configuration is compact.

(4) Sixth Embodiment Finally, a sixth embodiment (corresponding to claim 6) of the present invention will be described with reference to FIG. Here, the first
In the configurations of the fifth to fifth embodiments, it is possible to sequentially move the substrate holding position from the carry-in position side to the carry-out position side. In the present embodiment, for example, while the holding position of the substrate 91 is sequentially moved from the loading position to the unloading position by using the substrate stopping mechanism 71 described in the second embodiment, the leading end of the substrate 91 in the transporting direction. The component mounting work is performed in order from the area.

The board 91 is a so-called split board which is long in the X-axis direction, and performs the same component mounting operation (in which the same circuit unit is formed).
1a, 91b, and 91c are sequentially provided in the X-axis direction. The size of the entire substrate 91 is larger in the X-axis direction than the operation area C (indicated by a two-dot chain line) by the first and second mounting heads 32 and 33.

Therefore, in this embodiment, first, the stopper 7
2 is positioned at the position D in the figure and the board 91 is stopped at the position indicated by the solid line, and the component mounting operation on the left mounting area 91a is performed. Next, after the position of the stopper 72 is moved to E by the linear moving mechanism 73, the substrate 91 is sent to change the stop position of the substrate 91, and the central mounting area 91 is moved.
Execute the component mounting work for b. Finally, the position of the stopper 72 is moved to F, the stop position of the substrate 91 is changed in the same manner, and the component mounting operation for the right mounting area 91c is executed.

According to such an embodiment, as compared with the case where the board 91 is stopped at one place and the component mounting operation is performed,
A work area for component mounting can be substantially expanded, and a component mounting operation on a large-sized board 91 which cannot be conventionally handled can be easily performed.
It should be noted that the board 91 is not limited to the split board, and the same effect can be obtained by performing the mounting work by dividing the component mounting area even for a board forming one circuit unit. Of course.

In addition, the present invention is not limited to the embodiments described above. For example, various modifications are possible as a mechanism for changing the position of the stopper and a mechanism for moving the stopper in and out. In addition, the present invention can be applied to a device having three or more component supply units, and can be appropriately modified and implemented without departing from the gist.

[0067]

As is apparent from the above description, according to the component mounting apparatus of the present invention, in a device provided with a plurality of component supply units and a mounting head, a substrate stopping mechanism is used to transport a substrate to a stopper. Since the position in the direction can be changed, the stop position can be changed according to the size of the board, and the distance between the board and the first and second component supply units can be equalized. As a result, there is an excellent practical effect that an efficient component mounting operation can be performed regardless of the size of the substrate.

[Brief description of the drawings]

FIG. 1 shows a first embodiment of the present invention and is a front view of a substrate stopping mechanism.

FIG. 2 is a side view of a substrate stopping mechanism.

FIG. 3 is a longitudinal sectional side view of a substrate holding unit.

FIG. 4 is a longitudinal sectional front view of a substrate holding unit.

FIG. 5 is a plan view illustrating a positional relationship between a board stop position and a component supply unit.

FIG. 6 is a perspective view of a component mounting apparatus.

FIG. 7 is a front view of the component mounting apparatus.

FIG. 8 is a schematic plan view of a component mounting apparatus.

FIG. 9 is a plan view showing the relationship between the X-axis linear movement mechanism and the Y-axis linear movement mechanism.

FIG. 10 shows a second embodiment of the present invention, and is a front view of a substrate stopping mechanism.

FIG. 11 is an enlarged perspective view of a stopper portion.

FIG. 12 shows a third embodiment of the present invention, and is a schematic plan view of a main part.

FIG. 13 shows a fourth embodiment of the present invention, and is a perspective view of a turntable portion.

FIG. 14 shows a fifth embodiment of the present invention, and is a schematic front view of a stopper portion.

FIG. 15 shows a sixth embodiment of the present invention, and is a schematic plan view of a main part.

FIG. 16 is a diagram corresponding to FIG. 6 showing a conventional example.

FIG. 17 is a diagram corresponding to FIG. 7;

FIG. 18 is a diagram corresponding to FIG. 8;

FIG. 19 is a diagram corresponding to FIG. 9;

FIG. 20 is a diagram corresponding to FIG. 5;

[Explanation of symbols]

In the drawing, 21 is a component mounting apparatus, 23 and 91 are boards, 24
Denotes a substrate transfer path, 25 denotes a substrate holding unit (substrate holding mechanism), 2
9 is a first component supply unit, 30 is a second component supply unit, 32
Is a first mounting head, 33 is a second mounting head, 56,
71 is a substrate stopping mechanism, 57, 72, 81, 82, 83,
Reference numeral 89 denotes a stopper, 73 denotes a linear moving mechanism, and 84 denotes a rotary table.

Claims (6)

[Claims] A transport mechanism for transporting a substrate from a loading position to an unloading position on a substrate transport path, and a stopper at an intermediate portion of the substrate transport path, which is operated to project onto the substrate transport path to lock the substrate. A substrate stopping mechanism for stopping, a substrate holding mechanism for positioning and holding the substrate stopped by the substrate stopping mechanism, and a first component supply unit provided on the side of the loading position near the substrate transport path and configured to supply mounted components A second component supply unit provided on the unloading position side in the vicinity of the substrate transfer path to supply mounted components; and a second component supply unit between the substrate held by the substrate holding mechanism and the first component supply unit. A first mounting head that moves to perform a component mounting operation on the substrate, and moves between a substrate held by the substrate holding mechanism and the second component supply unit to perform a component mounting operation on the substrate. Second fruit And a mounting head, wherein the substrate stopping mechanism is configured to be capable of changing a position of the stopper in a substrate transport direction. 2. The apparatus according to claim 1, wherein the substrate stopping mechanism includes a linear moving mechanism for moving the stopper in the substrate transport direction, and the position of the stopper is changed by the linear moving mechanism in accordance with the size of the substrate. The component mounting apparatus according to claim 1, wherein: 3. The substrate stopping mechanism according to claim 1, wherein the substrate stopping mechanism includes a plurality of stoppers in a substrate transfer direction, and the stoppers are selectively operated in accordance with the size of the substrate. The component mounting apparatus described in the above. 4. The substrate stopping mechanism includes a rotary table on which a plurality of stoppers are mounted, and is configured to change the position of the stopper by rotating the rotary table according to the size of the substrate. The component mounting apparatus according to claim 1, wherein: 5. The substrate stopping mechanism includes a plurality of stoppers provided so that a locking surface of the substrate has a step shape in a protruding direction, and changes a protrusion amount of the stopper according to the size of the substrate. The component mounting apparatus according to claim 1, wherein the component mounting apparatus is configured as follows. 6. The component mounting apparatus according to claim 1, wherein the holding position of the board is sequentially moved from the loading position side to the unloading position side, and the board is sequentially moved from a front end area in the transport direction of the board. A component mounting apparatus for performing a component mounting operation.