JPH0831707B2 - Rotating disk type electronic component mounting device - 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 on a substrate such as a printed circuit board, and in particular, a plurality of suction tools for holding electronic components are mounted on a rotating disk which rotates intermittently. The present invention relates to improvement of a rotary disc type electronic component mounting device.

[0002]

2. Description of the Related Art This rotary disk type electronic component mounting device is already known, and one of them is (1) a rotary disk which rotates intermittently at a constant angle around an axis extending in the vertical direction, and (2) A plurality of rotary discs are held slidably in a vertical direction on one circumference centered on the one axis, and electronic components are held by suction at the lower end portions of the disc so that the rotary disc is intermittently rotated by the predetermined angle. An adsorbing tool that intermittently moves by one by one to convey electronic components, and (3) an electronic component supply device that is provided at one stop position of the intermittent movement of the adsorbing tools and supplies electronic components to the adsorbing tool,
(4) is provided at another stop position that is separated from the one stop position in the circumferential direction of the one circumference, and supports the substrate on which the electronic component held by the suction tool is to be mounted, and on the plate surface of the substrate. A substrate positioning device including a movable substrate support member that is movable in one parallel plane, and a movable substrate support member drive device that moves the movable substrate support member to an arbitrary position in the one plane, (5) Some include a suction tool elevating device that moves the suction tools up and down at the one stop position and the another stop position to move the suction tools toward and away from the electronic component supply device and the board positioning device, respectively. .

According to the rotary disc type electronic component mounting apparatus having this structure, one of the plurality of suction members receives the electronic component from the electronic component supply device in the stopped state of the rotary disc, and one of the other suction members. It is possible to perform a plurality of operations in parallel, such as mounting the electronic component on the substrate, and to shorten the cycle time for mounting the electronic component.

[0004]

However, in the conventional rotary disk type electronic component mounting apparatus, the suction tool is horizontally held as the rotary disk rotates while being held at the rising end by the biasing means such as the compression coil spring. It only moves on one plane and is lowered by the suction tool elevating device at a specific stop position such as above the electronic component supply device or the substrate positioning device. Therefore, it is necessary to arrange the electronic component supply device, the board positioning device, and the like along the one plane to make the heights uniform.

However, when the electronic component supply device and the substrate positioning device are arranged in the same plane, the movable substrate support member and its movable member are movable in order to mount the electronic component on a large substrate. Increasing the range inevitably increases the distance between the position where the electronic component supply device supplies the electronic component and the position where the electronic component is attached to the substrate. Therefore, the pitch circle of the suction tool on the turntable becomes large, the moment of inertia of the turntable and the members that rotate with it increase, and it becomes impossible to intermittently rotate the turntable at a high speed. The time gets longer.

In the electronic component mounting apparatus, it is strongly desired to shorten the cycle time for mounting the electronic components as much as possible and improve the mounting efficiency. However, the inertia of the rotary disk and the members that rotate integrally with the rotary disk are desired. When the moment is large, if these are intermittently rotated at a high speed, the vibration after the stop is increased and the positioning accuracy of the electronic component is lowered, so that the rotation speed must be reduced.

In view of the above circumstances, it is an object of the present invention to obtain a rotary disk type electronic component mounting apparatus capable of quickly mounting electronic components on a substrate such as a large printed circuit board.

[0008]

SUMMARY OF THE INVENTION The gist of the present invention is to provide a rotary disk type electronic component mounting device with a rotary disk which is intermittently rotated by a constant angle about an axis extending in the vertical direction.
A plurality of suction tool holding members that are slidably held in the up-down direction on one circumference of the rotary disk centered on the one axis and that intermittently move by the constant angle with intermittent rotation of the rotary disk. A three-dimensional cam having a cylindrical surface centered on the rotation axis of the turntable and being non-rotatably provided, and having a cam surface whose axial position changes as it advances in the circumferential direction on the cylindrical surface; A cam follower that is provided on each of the suction tool holding members and that engages with the cam surface and that moves the suction tool holding members up and down as the turntable rotates, and a plurality of suction tool holding members that can be lifted and lowered. A suction device, and an electronic component supply device that is provided at one stop position of the intermittent movement of the suction device and that supplies an electronic component to the suction device,
It is provided at another stop position separated in the circumferential direction of the one circumference, supports the substrate on which the electronic component held by the suction tool is to be mounted, and moves in one plane parallel to the plate surface of the substrate. A movable substrate supporting member, and a movable substrate supporting member driving device for moving the movable substrate supporting member to an arbitrary position within the one plane, and movement of the movable substrate supporting member by the movable substrate supporting member driving device. A board positioning device, a part of the space of which is provided below the electronic component supply device, and each suction tool is moved up and down relative to each suction tool holding member at the one stop position and the another stop position. Accordingly, the suction tool elevating device for moving the suction tools closer to and further away from the electronic component supply device and the board positioning device is included.

[0009]

As described above, if the movable substrate supporting member of the substrate positioning device can enter the space below the electronic component supplying device, the movable substrate supporting member and The movable range of it can be enlarged.

[0010]

By increasing the movable substrate support member and its movable range, electronic components can be mounted on a large substrate, and by reducing the pitch circle of the suction tool, the rotary disk can be rotated. Also, the moment of inertia of the entire member that rotates with it can be reduced, the speed of intermittent rotation can be increased, and the mounting efficiency can be improved.
After all, according to the present invention, it becomes possible to quickly attach electronic components to a large-sized substrate.

In addition, since the rotary movement of the suction tool is used to move the suction tool up and down, a three-dimensional cam and a cam follower may be provided, and it is not necessary to provide a drive source for lifting the suction tool. The structure of the device is simple, and the above effect can be obtained while suppressing the cost increase.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a rotary disc type electronic component mounting apparatus (hereinafter simply referred to as an electronic component mounting apparatus) for mounting an electronic component at a predetermined position on a printed circuit board will be described with reference to the drawings. It will be described in detail based on. 1 and 2 are external views of the electronic component mounting apparatus. In the figure, 2
Is a bed, and a printed circuit board positioning device 4 is disposed on the bed 2. Printed circuit board positioning device 4
Is moved by the pulse motor 6 and the pulse motor 8 in the directions of two axes orthogonal to each other, and is rotated around the vertical axis by the pulse motor 10.
2 is provided and the printed circuit board mounted on the holding plate 12 is positioned at a predetermined position, but since it is known, detailed description thereof will be omitted.

A main frame 14 is erected upward from the rear of the bed 2, and the head of the main frame 14 is bent at a right angle and extends above the printed circuit board positioning device 4. The main frame 14 incorporates a main mechanical part which will be described in detail later. The power of the main mechanical part is
Electric motor 16 provided in the vertical portion of the main frame 14
From the intermediate shaft 20 to the intermediate shaft 20 and from the intermediate shaft 20 to the input shaft 24 by the chain 22.

The electronic components to be mounted are arranged on one side edge of a plurality of pallets 26 which are fed in a row by a pushing device (not shown) in the mounting order, and are intermittently arranged by one pitch, that is, by the distance between adjacent electronic components. Is conveyed and supplied to the apparatus. In the present embodiment, the pallet 26 and the pushing device constitute an electronic component supplying device 28. The electronic component supplying device 28 is described in detail in Japanese Patent Application No. 55-114274. Since the supply form of electronic components is not directly related to the present invention, the description thereof will be omitted.

As is apparent from FIGS. 1 and 2, the holding board 12 of the printed circuit board positioning device 4 is provided at a lower position than the electronic component supply device 28, and a part of the holding plate 12 is an electronic component supply device. It is designed to enter under 28. As described above, the holding board 12 is in one horizontal plane by the holding board drive device 29 composed of the pulse motors 6, 8, 10, etc., that is, in the plane parallel to the board surface of the printed circuit board held by the holding board 12. The holding plate drive device 29 is adapted to be moved to an arbitrary position.
Therefore, a part of the moving space of the holding board 12 by the above is provided below the electronic component supply device 28.

An enlarged main mechanical portion of the electronic component mounting apparatus is shown in FIGS. 3 and 4. In FIG. 3, a solid cam 32 having a cam groove 30 formed on the outer peripheral surface of a cylinder is fixed to the main frame 14, and a hollow rotary shaft 36 having a disc portion 34 at the upper end is mounted on the solid cam 32 as a bearing. It is rotatably attached via. Eight rollers 38 are attached to the disc portion 34 at equal angular intervals, and the rollers 38 are adapted to be fitted into the cam grooves of the indexing cam 40 fixed to the input shaft 24. When the shaft 24 rotates at a constant speed,
The rotary shaft 36 is intermittently rotated by 1/8 rotation.

A rotary disk 42 is fixed to the lower end of the rotary shaft 36, and eight bushes 44 are arranged on the rotary disk 42 at equal angular intervals. A hollow rod 46 is slidably inserted in each of the bushes 44 in a direction parallel to the axis of the rotary shaft 36. Rollers 50 are attached to the upper ends of the hollow rods 46 via brackets 48, and these rollers 50 are fitted in the cam grooves 30 of the solid cam 32. The cam groove 30 is a turntable 42.
Is formed so as to move the hollow rod 46 in the axial direction from the highest position (retracted position) shown on the left side in FIG. 3 to the lowest position (advanced position) shown on the right side in FIG. This is because, as is apparent from FIG. 2, the heights of the electronic component supply device 28 for supplying the electronic components and the holding plate 12 for holding the printed circuit board on which the electronic components supplied from the electronic component supply device 28 are mounted are as described above. This is to cope with the difference.

Attached to the lower end of each of the hollow rods 46 is a chuck 52, shown in detail in FIG. In FIG. 5, reference numeral 54 denotes a chuck body, and the chuck body 54 is divided into three members, that is, a first member 56, a second member 58, and a third member 60 for the convenience of manufacturing. A through hole is formed at the center of the first member 56 and the second member 58, and the suction tool 62 is fitted in the through hole so as to be slidable in the longitudinal direction. The suction tool 62 includes a first member 64 and a second member 66. First member 64
Is a member having a stepped through hole having a large-diameter hole portion and a small-diameter hole portion at the center, and a second member 66 is slidably fitted in the small-diameter hole portion. The second member 66 is the spring 6
8 is urged in a direction to project from the first member 64, but the projection limit is defined by the contact between the head 70 of the second member 66 and the stepped surface of the first member 64. The tip portion of the second member 66 has the tip of the chuck body 5 within this projection limit.
The first end portion 56 is formed to protrude from the first member 56 of No. 4 by a certain amount, but the front end portion is thin, and the passage 74 is opened at the center of the front end surface 72. The passage 74 is an internal space of the first member 64, a communication hole 76 formed in the first member 64, an annular passage 78 formed between the chuck body 54 and the suction tool 62, and a second member 58 of the chuck body 54. It is adapted to be connected to a vacuum tank (not shown) via a passage 80 and a base 82 formed inside.

The chuck 52 has a pair of claws 86 as positioning claws, and the claws 86 are rotatably attached to the first member 56 of the chuck body 54 by pins 88. That is, although the first member 56 is a cylindrical member, a diametrical slot 90 is formed at the tip thereof as is apparent from FIG. 6, and the claw 86 is inserted into this slot 90 and The intermediate portion is rotatably supported by the pin 88. An inward projection 92 is projected from the part of the claw 86 projecting from the first member 56 toward the center line of the suction tool 62, and the thickness of the tip of the inward projection 92 is clear from FIG. 7. Thus, it is smaller than the outer shape of the chip (electronic component) 93 to be sucked. Further, on the back surface of the claw 86, an inclined surface 94 is provided which is inclined so as to move away from the center line of the suction tool 62 as the distance from the pin 88 increases.

Then, the first member 56 is provided on the inclined surface 94.
The tapered surface 97 of the sleeve 96 fitted to the outer side of the is engaged. The sleeve 96 is urged by a spring 98 so as to move toward the tip end side of the first member 56, and the movement limit is the pin 1 erected on the first member 56.
00 and the long hole 102 formed in the sleeve 96. The spring 106 housed in the bottomed hole 104 of the first member 56 acts on the inner peripheral surface of the sleeve 96 and the end of the claw 86 opposite to the side where the inward projection 92 is provided. ing. As a result, the nail 8
6 is biased in an opening direction, that is, in a direction in which the inward projections 92 rotate so as to separate from each other, but this rotation is blocked by the engagement between the tapered surface 97 and the inclined surface 94 of the sleeve 96. ing.

Therefore, the flange 10 of the sleeve 96
If the sleeve 96 is retracted against the urging force of the spring 98 by the release member 110 engaging with 8, the pawl 86
Is opened and the claw 86 is closed when the sleeve 96 is advanced. Then, the inclined surfaces 9 of the pair of claws 86
Since 4 is formed symmetrically with respect to the center line of the suction tool 62, the claws 86 are mutually symmetrical in a direction substantially perpendicular to the center line of the suction tool 62 while maintaining a symmetrical relationship with respect to the center line of the suction tool 62. It will be approached and separated. A double chamfered portion 112 is formed on the second member 66 of the suction tool 62 and is engaged with the two rotation stop plates 114 fixed to the lower end surface of the first member 56 of the chuck body 54. The rotation of the suction tool 62 is prevented.

Since the third member 60 of the chuck body 54 is fixed to the hollow rod 46 described above, the chuck 52 moves up and down in the vertical direction while being intermittently driven to rotate around the rotary shaft 36 together with the rotary disk 42. It is supposed to be done. An elevating rod 116 is inserted through the hollow portion of the hollow rod 46.
The lower end of is fitted into the first member 64 of the suction tool 62 and is fixed by the pin 118.

The elevating rod 116 is for elevating the suction tool 62 of the chuck 52, and an engaging member 142 is fixed to the upper end of the elevating rod 116, as is apparent from FIG. A spring 140 is provided between the engaging member 142 and the upper end surface of the hollow rod 46 to constantly urge the elevating rod 116 upward, that is, the suction tool 62 fixed to the lower end thereof to the retracted position. are doing. Engagement member 142
When the chuck 52 is at the highest position as shown on the left side of FIG. 3, it engages with the engaging notch 148 of one arm of the lever 146 rotatably supported by the shaft 144 fixed to the main frame 14. To meet. Also, the chuck 52
Is at the lowest position as shown on the right side of FIG. 3, the engaging member 142 is a lever 1 rotatably supported by a shaft 150 fixed to the main frame 14.
52 engages with the engagement notch 154 on one arm.

The other arms of the levers 146 and 152 are connected to one arm of the levers 160 and 162 by connecting rods 156 and 158, respectively. The lever 160 is rotatably supported by a shaft 164 fixed to the main frame 14, and a roller 168 is attached to the other arm via a bracket 166. The lever 160 is biased by a spring 170 so as to rotate clockwise in FIG. 3, and the roller 168 is brought into contact with a plate cam 172 fixed to the input shaft 24 by this biasing force. Also lever 1
62 is also rotatably supported by a shaft 136 fixed to the main frame 14, is urged counterclockwise by a spring 174, and a roller 178 mounted via a bracket 176 has a plate cam 180 fixed to the input shaft 24. (See FIG. 4).

The mouthpiece 82 communicating with the passage 74 of the suction tool 62 is connected to a vacuum tank (not shown) via a rotary type switching valve formed by the rotary disc 42 and the valve plate 188. , Turntable 4
With the rotation of 2, the negative pressure is supplied at a predetermined time.

The claw 86 of the chuck 52 is opened and closed by a claw opening / closing device 124. That is, the claw 86 is formed by the spring 10 as described above with reference to FIG.
The sleeve 96 is urged to open by 6
This sleeve is regulated to open by 96
The pawl 86 is opened by retracting the lever against the biasing force of the spring 98, and the release member 110 that engages with the flange 108 to retract the sleeve 96 is as shown in FIG. It is a member having two arms extending in mutually opposite directions at different height positions, and is fixed to the lower end of an elevating rod 126 slidably inserted in the hollow portion of the rotary shaft 36.

The upper end of the elevating rod 126 is connected to one arm of a lever 134 by a connecting rod 128 and pins 130 and 132. As shown most clearly in FIG. 4, the lever 134 is rotatably supported by a shaft 136 fixed to the main frame 14, and is not shown on the tip end surface of the other arm of the lever 134. Rollers are attached. The lever 134 is urged by a spring (not shown) so as to rotate counterclockwise in FIG. 3, and the urging force causes the roller to be constantly applied to the plate cam 138 (see FIG. 4) fixed to the input shaft 24. Being in contact.

Therefore, as the plate cam 138 is rotated by the input shaft 24, the lever 134 moves the shaft 136.
The release member 110 is lifted up and down by rotating around to move the chuck 52 to grip and release the chip 93. That is, these springs 98, release members 110, lifting rods 126, connecting rods 128, levers 134, plate cams 13
8, the input shaft 24 and the like constitute the pawl opening / closing device 124.

In the present apparatus, as described above, the turntable 4
2 is intermittently rotated by 1/8 rotation, and the chuck 52 is intermittently moved by a constant distance along a circular path accordingly. With this movement, the chuck 52 is a part indicated by A in FIG. The chip 93 is received from the pallet 26 at the receiving position and is mounted on the print board at the component mounting position indicated by B. The component position correction position indicated by C and D
A component position correcting device 202 and an adhesive applying device 203 are provided at the adhesive spotting positions indicated by. The adhesive application device 203 is for applying an adhesive for adhering the chip 93 to the back surface of the chip 93 on the back surface of the chip 93, but detailed description thereof is omitted because it is not directly related to the present invention. The component position correction device 202 will be described below.

The component position correcting device 202 includes a main frame 1
It is supported by a bracket 204 fixed to the No. 4.
As shown in FIG. 9, on the bracket 204, a block member 206 as a main body of the component position correcting device 202 is fixed, and the block member 206 is formed with rectangular grooves 208 and 210 orthogonal to each other. . A pair of sliders 212 and 214 are slidably fitted in the rectangular groove 208, a plate 215 prevents the slider from rising, and a spring 216 urges the sliders 212 and 214 in a direction toward each other. Positioning claws 218 are attached to the upper surfaces of the tips of the sliders 212 and 214 so as to face each other.

On the other hand, a rod-shaped cam member 220 is slidably fitted in the rectangular groove 210, and the plate 215 is inserted.
This prevents the rising. A pin 222 is erected on the side surface of the rear end portion of the cam member 220.
An engaging groove 226 formed at one end of the lever 224 as shown in FIG. The lever 224 is rotatably supported by the support shaft 228 at the center and is urged by the spring 230 to rotate counterclockwise in FIG. 10, thereby forming the engagement groove 226. The end on the opposite side to the cam 23
It is in contact with 2. Therefore, the cam 232 is
When rotated by 4, the lever 224 pivots around the support shaft 228 and moves the cam member 220 in the longitudinal direction.

The support shaft 228 is erected on a bracket (not shown) fixed to the main frame 14, and one end of the spring 230 is also supported by the same bracket. The shaft 234 is also rotatably supported by the same bracket, and the input shaft 2 is rotatably supported by a gear train (not shown).
4 is rotated by a gear 236 (see FIG. 4) fixed to the gear 4. As is apparent from FIG. 8, both side surfaces of the tip end portion of the cam member 220 are inclined by the same angle with respect to the center line of the cam member 220 to form a cam surface 238, and the tip end surfaces of the sliders 212 and 214 are formed. Is also tilted to accommodate this.

Therefore, the sliders 212 and 214, and thus the positioning claw 2 are moved by the forward and backward movement of the cam member 220.
18 are moved toward and away from each other while maintaining a symmetrical relationship with respect to the center line of the cam member 220. That is, the cam member 220
Is moved forward, the sliders 212 and 214 are moved backward against the urging force of the spring 216, so that the spacing between the positioning claws 218 becomes wider, and conversely, the cam member 220.
When is moved backward, the sliders 212 and 214 are moved forward by the urging force of the spring 216, and the positioning claws 218 are brought closer to each other.

The component position correcting device 202 includes the chuck 5
When the position 2 stops at the position C (component position correction position) in FIG. 8, the position where the center line of the suction tool 62 and the symmetry axis of operation of the positioning claw 218 match, in other words, the center line of the suction tool 62 and the cam member It is provided at a position where the center line of 220 intersects, and the position of the positioning claw 218 is at the suction tool 62.
It is set so that the chip 93 adsorbed on is just positioned between the positioning claws 218. That is, in the present embodiment, the two positioning claws 218 position the chip 93 in a direction substantially perpendicular to the center line of the suction tool 62 and at a direction perpendicular to the operating direction of the claw 86, and the chuck 52. The rotary disc 42 for intermittently moving the rotary disc along a circular path, the rotary shaft 36 for intermittently rotating the rotary disc 42, the indexing cam 40, etc.
8 constitutes a chuck moving device for moving the C position to the C position (component position correction position) and the A position (component receiving position).

In FIG. 8, reference numeral 240 denotes a chuck error detecting device, and when the tip 93 of the suction tool 62 is not sucked when the component position correcting device 202 is operated, the slider 214 is moved to a level larger than usual. The plate-like projection 244 of the rod 242 which is advanced a lot and projects from the rear end of the slider 214 does not block the light emitted from the light emitter of the photoelectric detector 252 toward the light receiver, thereby issuing a holding error detection signal. It is like this.

The holding and conveying of the chip 93 by the above apparatus will be described below. When one of the eight chucks 52 stops at the position A in FIG. 8, one of them is raised to the highest position by the action of the three-dimensional cam 32, and as described above, the pallet 26 is at the higher position. However, it is at the proper height for the pallet 26. Therefore, the lifting rod 116 causes the suction tool 62 to
When the stick is projected, the suction tool 62 can suck and hold the chip 93 on the pallet 26.

When the suction tool 62 holding the chip 93 is returned to the retracted position, the claw 86 is in the open state, but after the suction tool 62 returns to the retracted position, the claw opening / closing device 1
24 operates to close the pawl 86. At this time, the inward projections 92 of the claws 86 sandwich the chip 93 from both sides in the longitudinal direction, but since the claws 86 are brought close to each other while maintaining a symmetrical relationship with respect to the center line of the suction tool 62, the suction tool 62. The center in the longitudinal direction of the tip 93 adsorbed on is aligned with the center of the adsorption tool 62.

After that, the chuck 52 is intermittently moved by a constant distance along with the intermittent rotation of the turntable 42, and the chip 93 is sandwiched by the claws 86 in the longitudinal direction, and this sandwiching direction. Since it coincides with the moving direction of the chuck 52, even if the chuck 52 is suddenly started and stopped, there is no risk of displacement with respect to the suction tool 62, and the chuck 52 can be moved quickly. Further, along with this movement, the chuck 52 is gradually lowered by the action of the three-dimensional cam 32.

When the chuck 52 sucking the chip 93 moves to the C position and stops, the component position correcting device 202 is operated to bring the positioning claws 218 close to each other. At this time, the positioning claws 218 are brought close to each other in the direction perpendicular to the moving direction of the claw 86, and the tip 93
The positioning claws 218 are located at the center line of the cam member 220, and by extension, the suction tool 62.
The center of the tip 93 in the width direction is close to the suction tool 6 because the tip 93 is approached while maintaining a symmetrical relationship with respect to the center line of
It will be aligned with the center of 2. Immediately after the completion of the positioning in the width direction, the sliders 212 and 214 are
Are retracted, the positioning claws 218 are separated from each other, and separated from the chip 93. As described above, the center of the tip 93 is accurately aligned with the center of the suction tool 62, and the tip 93 is held by the chuck 52 at the correct position.

After the above is done at position C,
The chuck 52 is moved to the D position, and the adhesive is applied to the back surface of the chip 93 at this position.
In this case, the tip 93 is sandwiched by the claws 86 in the longitudinal direction, but is open in the width direction so that there are no obstacles.
Easy to apply adhesive.

After applying the adhesive, the chuck 52 is further moved to the B position, and at this position, the lifting rod 116 is moved.
Operates to move the suction tool 62 to the protruding position. As a result, the chip 93 adsorbed by the adsorbing tool 62 is pressed and adhered to the printed circuit board that is positioned in advance at a predetermined position by the elastic force of the spring 68 shown in FIG. Holding board 12 holding this printed circuit board
Is at the lowest position as described above, but the three-dimensional cam 32 is not moved until the chuck 52 is moved to this position.
Since the chip 93 is lowered by the action of, the chip 93 is mounted on the printed circuit board without any trouble.

As is clear from the above description, the chip 9
When the suction of 3 and the positioning in the longitudinal direction are at the A position,
Positioning in the width direction is at position C, and adhesive coating is at position D
At the position, the mounting on the printed circuit board is performed at the position B, and the work required for one chip 93 is divided into the work at the plurality of stop positions. Moreover, since the work at each stop position is performed in parallel, the attachment of the chip 93 to the printed board can be performed extremely efficiently.

Further, since the chuck 52 is made highest at the position A and lowest at the position B by the action of the three-dimensional cam 32, the electronic component supply device 28 for supplying the chip 93 to the chuck 52 and the printed circuit board positioning device 4 are provided. Despite the difference in height from the holding plate 12, the chip 93 can be received and mounted without any trouble.

Since the space below the electronic component supply device 28 can be used as a moving space for the holding board 12, the holding board 12 is a large one capable of holding a large printed circuit board and is large. The holding plate 12 is moved in a wide range so that the rotary plate 42 is relatively small and the turning locus of the chuck 52 and the like is made small so that the electronic parts can be mounted at any position on the printed circuit board. Turntable 42
Also, the rotational moment of the entire member that rotates with it can be reduced. Therefore, it is possible to reduce the time required to move the chuck 52 from one stop position to the adjacent stop position while avoiding an increase in vibration when the turntable 42 stops rotating, and to reduce the cycle time for mounting electronic components. Can be shortened to improve the efficiency of mounting work.

Further, the chuck body 54 has a chip 93.
Since only the pair of claws 86 for positioning the chip 93 in the longitudinal direction are attached and the component position correcting device 202 for positioning the chip 93 in the width direction is provided on the bracket 204 fixed to the main frame 14, the chip 93 is fixed. The structure of the chuck 52 for sucking and holding is simple and the size and weight are small. Therefore, the inertial mass of the chuck 52 is reduced, and the chuck 52 can be quickly moved intermittently while keeping vibration and noise small. Further, the tip 93 is attracted by the suction tool 62 and held by the claw 86. Therefore, the suction tool 62 can be quickly moved while being accurately positioned.
In addition, the component position correction device 202 allows the plurality of chucks 52
Since it can be used in common, the device as a whole is simple and can be manufactured at low cost.

As is clear from the above description, in this embodiment, the suction tool holding member is constituted by the rod 46, the bracket 48, the chuck body 54 and the like. The groove side surface of the cam groove 30 constitutes the cam surface of the three-dimensional cam, and the roller 50 constitutes the cam follower. The holding board 12 constitutes a movable substrate supporting member, and the pulse motors 6, 8, 10 constitute a movable substrate supporting member driving device. Furthermore, the levers 146, 15
2, 160, 162, connecting rods 156, 158, plate cam 1
72, 180 and the like constitute an adsorber lifting device.

In addition, in the above embodiment, the chuck 52 is the turntable 4 driven by the indexing cam 40.
Although it is configured to be moved by a constant distance with the intermittent rotation of two, another moving device such as a pulse motor may be used. In addition, although not exemplarily illustrated, it is needless to say that the present invention can be implemented in various modified and improved modes based on the knowledge of those skilled in the art.

[Brief description of drawings]

FIG. 1 is a plan view of a rotary disk type electronic component mounting apparatus according to an embodiment of the present invention.

2 is a front view of the device of FIG. 1. FIG.

FIG. 3 is a side sectional view showing a main part of the apparatus of FIGS. 1 and 2.

FIG. 4 is a plan sectional view showing a main part of the apparatus of FIGS. 1 and 2.

5 is a vertical cross-sectional view showing a chuck in the apparatus of FIGS. 1 and 2. FIG.

6 is a sectional view taken along line VI-VI of FIG.

7 is an enlarged bottom view of FIG.

FIG. 8 is a plan view of a component position correcting device and an adhesive applying device provided in the devices of FIGS. 1 and 2.

9 is a sectional view taken along line IX-IX in FIG.

10 is a view as viewed in the direction of the arrow X in FIG. 8;

[Explanation of symbols]

 12 Holding Board 28 Electronic Component Supplying Device 29 Holding Board Driving Device 30 Cam Groove 32 Solid Cam 42 Rotating Disk 46 Hollow Rod 48 Bracket 50 Roller 52 Chuck 54 Chuck Body 62 Adsorption Tool 72 Tip Surface 86 Claw 93 Chip

Claims (1)

[Claims] 1. A turntable which is intermittently rotated by a constant angle around an axis extending in the vertical direction, and a plurality of the turntables which can slide in the up-down direction on one circumference centered on the one axis. A suction member holding member that is held and intermittently moves by the constant angle with the intermittent rotation of the rotary disc, and a cylindrical surface centered on the rotation axis of the rotary disc is provided so as not to rotate, and A three-dimensional cam having a cam surface whose axial position changes as it advances in the circumferential direction; and a suction cam provided on each of the suction tool holding members and engaged with the cam surface, and sucks as the rotary disk rotates. A cam follower that raises and lowers the tool holding member, a suction tool that is held by each of the plurality of suction tool holding members so as to be able to move up and down, and that holds electronic components by suction. Electronic parts on the suction tool An electronic component supply device for supplying, and a plate surface of the substrate, which is provided at another stop position separated in the circumferential direction of the one circumference, supports a substrate on which the electronic component held by the suction tool is mounted And a movable substrate support member driving device for moving the movable substrate support member to an arbitrary position in the one plane, and the movable substrate support member driving device. A part of the moving space of the movable substrate supporting member by the device is a substrate positioning device provided below the electronic component supply device, and each suction device is provided with a suction device holding member at each of the one stop position and the another stop position. A rotary disc type electronic component including a suction device elevating device that moves the suction device closer to and away from the electronic component supply device and the substrate positioning device by moving the suction device relative to the suction device elevating device. Mounting device.