JPH0136719B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a chip component mounting device that automatically mounts chip components onto an electronic circuit board.

Background technology and its problems As the demand for smaller and thinner electronic devices increases, the configuration of electronic circuits shifts from the conventional configuration of electronic components with lead wires to high-density packaging circuits using chip components. There is a tendency. There are two types of devices for mounting (mounting) chip components onto electronic circuit boards: a batch method that mounts multiple chip components at the same time, and a sequential method that mounts them one by one in a predetermined order. Although it is suitable for mass production of different types, it tends to lack flexibility when changing types such as changing the substrate. On the other hand, the sequential method has the advantage of being able to quickly respond to changes in product types, but when it is required to simultaneously mount chip parts with different sizes and shapes, such as cylindrical chips and square chips, There are many. For this reason, rotary types with multiple tracking heads and double head types with two tracking heads arranged in parallel at predetermined positions have been used, but these have complicated mechanisms. However, the disadvantage is that the device becomes larger.

On the other hand, there are two types of supply methods for chip parts: the bulk supply method and the taping supply method in which the chip parts are aligned and held on the tape in advance, but this taping method tends to be limited to square chip parts with flat surfaces. However, there are problems in that it is difficult to adequately deal with cylindrical chips, etc., and there is also the drawback that the cost is high.

Purpose of the Invention The present invention was made in view of the above-mentioned circumstances, and its purpose is to provide a sequential mounting method that can quickly respond to changes in product types, which enables high-speed mounting, and which has dimensions and shapes including cylindrical chips. To provide a chip component mounting device which can simultaneously mount different chip components and can downsize the device.

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention has two sets of chucking heads capable of grasping a chip component and pressing the gripped chip component in the installation direction, the central axes of which are positioned in a relationship such that their central axes are perpendicular to each other. , and has a chip component mounting head supported so as to be rotatable by 90 degrees left and right about the intersection of the central axes, and at least one magazine, and one chip component is mounted in each of the chucking heads. A pair of left and right chip component feeders are provided, and by alternately rotating the chip component mounting head by 90 degrees, one chucking head can be connected to the chip component feeder from the other chip component feeder. an operation of receiving supply of chip parts;
The other chucking head is configured to alternately mount components supplied from the other chip component feeder onto the board.

With the above configuration, two sets of component feeders and two sets of chucking heads are used, so chip parts of different sizes and shapes, including cylindrical chips, etc. can be mounted at the same time. .
Moreover, since the receiving and mounting of parts are performed alternately by two sets of chucking heads, high-speed mounting is possible with no wasted waiting time. Furthermore, since these two sets of chucking heads are provided in one rotary chip component mounting head, it is possible to downsize the mounting head and, in turn, to downsize the entire device.

Embodiment An embodiment of the present invention will be described below based on the drawings.

(Schematic explanation of the entire chip component mounting device) In FIGS. 1 to 3, reference numeral 1 denotes a chip component mounting head, which has two sets of chucking heads 2 and 3 at mutually orthogonal positions. 4,
5, and is attached to a rotation shaft 6 which is rotated 90 degrees left and right alternately. According to the rotation of this rotation shaft 6, two sets of tracking heads 2,
3 move between a horizontal position and a vertical position, and in the horizontal position, rotary parts feeders 7 provided on the left and right
Grasp the chip parts supplied from a and 7b and place the board 9 on the X-Y table 8 in a vertical position rotated 90 degrees.
Attach the chip parts on top. Note that this board 9
Adhesive for temporarily attaching chip parts is applied to the top by screen printing etc. in advance, and
- By moving the Y-table 8, chip parts are mounted in a preprogrammed order.

In addition, each of the rotary parts feeders 7a and 7b includes
A plurality of magazines 10a, 10b, etc., which are classified according to the size and shape of chip parts, are attached, and the required magazines are moved to predetermined parts supply positions according to the above program. The chip parts in the magazine are then delivered to rotary parts feeders 7a and 7b.
Component delivery devices 11a and 11 provided in each of
The parts are fed out one by one from the parts supply ports 12a and 12b to the chuck portions of the chuck heads 2 and 3 by means of the part b.

Alternate rotation of the mounting head 1 every 90 degrees, feeding of the parts by the parts delivery devices 11a and 11b,
A series of operations such as vertical movement of the chucking heads 2 and 3 and pressing of the gripped parts onto the board 9 are performed by a cam 115a driven by a motor 13 via a reducer 14 shown in FIG. The driving members 16a, 16b, etc., which are interlocked with the cam 215b, etc., are driven in order. Opening/closing of switches that operate in connection with these sequential operations and confirmation of operations related to the program are performed using cam switches 19a, 19b, etc. provided on a cam switch shaft 18 driven via a cam shaft 17. It is done by folding.

(Description of chip component mounting head) Next, details of the chip component mounting head 1 will be explained with reference to FIGS. 4 to 8.

As shown in FIGS. 4 to 6, the chip component mounting head 1 has a cross-shaped holding member 2 attached to the rotation shaft 6 (FIG. 3) that alternately rotates 90 degrees left and right.
5, and the two sets of chucking heads 2 and 3 attached to the holding member 25 at mutually perpendicular positions. And the central axes 2 of these two sets of tracking heads 2 and 3 are perpendicular to each other.
The intersection point O of 6 and 27 coincides with the center of the rotating shaft 6, and this rotating shaft 6 is perpendicular to each of the central axes 26 and 27.

The holding member 25, which forms a cross shape as described above when combined, is attached to the connecting bolts 28a, 2 as shown in FIG.
When 8b is removed, as shown in Figures 7 and 8,
It is divided into two sets of assemblies 30 and 31 in which chucking heads 2 and 3 are respectively assembled into two sets of holding members 25a and 25b having U-shaped recesses 29a and 29b, respectively. Note that the through holes 32a and 32b shown in FIG.
This is an insertion hole for a connecting bolt that fixes the rotary shaft 6 to the rotating shaft 6.

Next, since the two sets of assemblies 30 and 31 have substantially the same configuration, one of them 30 will be explained with reference to FIGS. 6 and 8.

The holding member 25a has the U-shaped recess 29.
A semicircular groove 34 running in the longitudinal direction approximately at the center of the bottom surface 33 of a, and through holes 37 and 38 passing through U-shaped protrusions 35 and 36 on an extension of the semicircular groove 34 are formed. has been done. Note that through hole 3
Bearings 39 and 40 are provided on the inner surfaces of the grooves 7 and 38, and a semicircular groove 41 is formed approximately at the center of the semicircular groove 34 and perpendicular to the groove 34.

The chuck head 2 includes a chuck part 43 that grips the chip component and can slide inside the through holes 37 and 38 of the holding member 25a and the semicircular groove 34, and a chuck part 43 that can slide inside the chuck part 43. The push part 44 pushes out the part gripped by the part 43.

The chuck portion 43 includes a rectangular parallelepiped end portion 45 having a substantially rectangular parallelepiped shape, a hollow rod 46 fixed thereto, and an L-shaped fixed side chuck 47 and a rotating side chuck 48 attached to the rectangular parallelepiped end portion 45 and facing each other. It consists of This fixed side chuck is fixed to the end portion 45 of the rectangular parallelepiped with bolts 49.
The rotating chuck 48 is rotatably attached to the end portion 45 of the rectangular parallelepiped via a fulcrum pin 51 that is locked by an E-ring 50. And both chuck 4
A tension spring 52 is stretched between 7 and 48,
A wide claw 53 is provided at the tip of the fixed side chuck 47.
Furthermore, narrow claws 54 are provided at the tips of the rotating chucks 48, respectively. The end of the rotating chuck 48 on the opposite side of the claw 54 with the fulcrum pin 51 in between is extended in an L-shape in a direction parallel to the pin hole 55, and a pressed part 56 for opening and closing the chuck is provided in this extended part. is formed, and when this part is pressed, chuck 4
8 is configured to open. On the other hand, the outer diameter of the hollow rod 46 is equal to the diameter of the through hole 3 of the holding member 25a.
It is formed in a size that can slide inside 7, 38,
A through hole 57 is formed inside the rectangular parallelepiped, which penetrates the entire rectangular parallelepiped including the end portion 45 in the axial direction. and the holding member 2 in the central part of the hollow rod 46.
A semicircular notch 59 having a notch surface 59a perpendicular to the insertion direction of the pin 51 is formed in the portion of the pin 5a that moves within the semicircular groove 34. A male thread 60 is formed on the outer surface of the end of the hollow rod 46. To attach the chuck portion 43 to the holding member 25a, the hollow rod 46 is inserted into the through holes 37 and 38.
The compression spring 61 is inserted into the end of the protruding hollow rod 46. Then, screw the round nut 63 with the flange 62 into the external thread 60 of the hollow rod 46, compress the compression spring 61 between it and the holding member 25a, and fix the round nut 63 in a predetermined position with the set screw 64. , the chuck portion 43 is biased toward the backward motion side, and is held stationary at a position where the end surface of the rectangular parallelepiped end portion 45 abuts against the holding member 25a. As described above, when this chuck portion 43 is pressed from the outside against the compression spring 61, it can slide within the holding member 25a.

Next, the push rod 44 is composed of a push rod 66 and a hollow rod 67, and the push rod 66 has a flat plate portion 68 at the tip and a
It consists of a circular flange portion 69 and a rod portion 70 which continue to the flange portion 69 and the rod portion 70. Both sides of the flat plate part 68 on the thick side are disposed between the chucks 47 and 48, and the tip of the flat plate part 68 is formed in a size and shape according to the shape of the chip part to be gripped. In the case of the embodiment, a chevron-shaped recess 71 suitable for pressing the circumferential surface of the cylindrical chip is formed. A female screw hole 72 is provided inside the end of the rod portion 70 in the axial direction. On the other hand, hollow rod 67
The outer periphery of the cap is slidable within the through hole 57 of the chuck portion 43, and a hollow cap 73 is fixed to one end. Inside this hollow rod 67, a cap 73 is provided in the axial direction.
an inner hole 75 large enough for the compression spring 74 to be inserted, and the rod portion 70
An inner surface hole 76 in which the inner surface can slide, and an inner surface hole 77 having an inner diameter larger than this inner surface hole 76 are formed. And the hollow rod 4 in the middle part of the hollow rod 67
At a position corresponding to the semi-medium notch 59 of No. 6, a semicircular notch 78 is formed like this notch.

Next, in order to attach the push part 44 to the holding member 25a, the hollow rod 67 with the compression spring 79 fitted around the outer periphery is inserted from the round nut 63 side into the through hole 57 of the chuck part 43 attached to the holding member 25a as described above. Insert. On the other hand, with both chucks 47 and 48 removed, push rod 66, which has a compression spring 74 fitted around the outer periphery of rod portion 70, is attached to chuck portion 43.
The hollow rod 67 is inserted into the inner holes 75 and 76 from the rectangular parallelepiped end 45 side. Then, by screwing the bolt 81 into the female threaded hole 72 through the washer 80 from the semicircular notch 78 side and adjusting it, the push rod 66 and the hollow rod 67 are connected. (The removed chucks 47 and 48 are attached to the end portion 45 of the rectangular parallelepiped as described above.) At this time, the compression spring 79 is disposed between the round nut 63 of the chuck portion 43 and the cap 73, and the compression spring 79 is 61, the spring force is weaker than 61. Therefore, the push section 44 as a whole is urged toward the backward motion side by the compression spring 79, and the tip of the flat plate section 68 of the push rod 66 is held in a predetermined relationship position with both pawls 53, 54. . And the push section 44 is
When pressed in the forward direction against the compression spring 79,
The inside of the through hole 57 of the chuck part 43 is inserted into the chuck part 43.
It is slidable in the forward movement direction separately and independently. Also, since the hollow rod 67 is connected to the push rod 66 via the compression spring 74 in the forward direction,
Even if the push rod 66 stops on the substrate, it is also possible for the hollow rod 67 to move forward independently.

Next, when the chuck part 43 and the push part 44 are attached to the holding member 25a as described above, the notch surfaces 59a, 7 of the semicircular notches 59, 78 of both
8a coincides with the bottom surface 33 of the U-shaped recess 29a of the holding member 25a (the hollow rod 67 is rotated appropriately) to obtain an assembly 30 as shown in FIG. 7. Since the assembly 31 is obtained in the same manner, the U of the holding members 25a, 25b is
When the letter-shaped recesses 29a and 29b are placed inside and aligned at right angles to each other, the bottom surfaces 33 of the recesses 29a and 29b are formed.
Both holding members 2 are held in close contact with each other, and the U-shaped protrusions 35 and 36 hold both side surfaces 98 of the other.
5a and 25b are combined. Therefore, the connecting bolts 28a and 28b are inserted into the through holes 9 on the side of the holding member 25b.
7a, 97b to the female screw hole 99 of the holding member 25a.
By screwing into holes 99a and 99b, the two are connected to form a mounting head 1 having two sets of tracking heads 2 and 3. Further, the rotating shaft 6 is fitted into the circular recess 100 (FIG. 4) for centering of the holding member 25a, and the coupling bolts are inserted into the through holes 32a and 32b, and the female threaded hole of the rotating shaft is inserted. When screwed into the mounting head 1, the mounting head 1 is fixed to the rotation shaft 6 (not shown).

Note that the bolt head of the bolt 81 is connected to the holding member 2.
When the holding members 5a and 25b are combined, they are disposed within the semicircular grooves 41 of the holding members 25a and 25b, and are configured to be movable within the grooves 41.

In this way, the mounting head 1 is structured so that the assembly 30 or 31 incorporating the chucking head 2 or 3 can be separated into two pieces, and since it is easy to attach and detach, it is possible to change the size and shape of the chip parts. The tracking heads 2, 3 can be easily replaced according to changes.

In addition, in the coupled state, both the chuck portions 43 and the hollow rods 46, 67 of the push portions 44 of the chucking heads 2, 3 have their cross-shaped mating surfaces cut into semicircular notches 59, 78. Because of this, both can freely reciprocate without interference from each other.

(Explanation of Operation of Mounting Head) Next, the chip component mounting operation of the mounting head 1 will be explained with reference to FIGS. 1, 3, 5, and 9.

As shown in FIGS. 1 and 5, when the tracking head 2 is rotated to the component supply position, that is, to the horizontal position, the pressed portion 56 of the rotating chuck 48 is rotated.
However, it is configured to abut against a pressing member 101a provided on the stationary side separately from the mounting head 1, so that the rotating side chuck 48 resists the tension spring 52 as shown by the dashed line. It will be opened like this.
Here, the parts are supplied between the claws 53 and 54, and when the chucking head 2 begins to rotate in the direction of the arrow a,
Since the rotating side chuck 48 is released from the pressure of the pressing member 101a, the rotating side chuck 48 is closed by the tension spring 52, and the tip part is moved by the claw 53,
Checked within 54 hours. Then, while checking, the checking head 2 rotates 90 degrees and stops at the mounting position. Here, the first and second push levers 102 and 103 shown in FIG. 3 rotate in conjunction with the cam 15, and this rotation causes the push rods 102a and 103a at the tips to move downward at approximately the same speed. , and presses down the round nut 63 on the head of the push section 43 of the chucking head 2 and the cap 73 on the head of the push section 44, respectively. (Although not shown, the push rod 103a is configured to be able to move freely within 102a, and the push rod 102a is configured to be pressed via a compression spring.) Therefore, FIG. 9A As shown in FIG. 9B, the chuck portion 43 and the push portion 44 are moved downward together with the chucked chip component 104 against the compression springs 61 and 79, and the chuck portion 43 is brought into contact with the board 9 as shown in FIG. 9B. It stops at a position where it is either in contact or not.
However, since the push portion 44 can move forward independently as described above, it continues to move forward, and the push rod 66 at its tip presses the chip component 104 onto the substrate 9.
However, at this time, the chuck portion 43 starts to move backward as shown in FIG. When this attachment is completed, the pusher portion 44 also begins to move backward, and both the chuck portion 43 and the pusher portion 44 return to the backward movement position (FIG. 9D).

Then, the tracking head 2 rotates in the direction of arrow b again to receive the parts, but this time, the tracking head 2 that was receiving the parts during the above-mentioned mounting operation of the tracking head 2 3 comes to the mounting position, and the chip parts are mounted in the same manner as above. Then, by alternately rotating the mounting head 1 90 degrees left and right, the tracking head 2
and 3 alternately repeat the operation of receiving parts and the operation of mounting the supplied parts.

Note that when the push portion 44 presses the chip component onto the substrate 9, the compression springs 74 and 79 are compressed to absorb the impact at this time. Further, the tip of the chuck portion 43 is set so as to be pushed down to a position where it may or may not come into contact with the substrate 9, but even if the tip of the chuck portion 43 comes into contact with the substrate 9 due to some error, Pussyrod 102
This error is absorbed by the compression spring in a, and the impact force is also alleviated.

Furthermore, the opening of the rotating side chuck 48 of the chucking head 3 at the component supply position is performed in the same manner as described above by the pressing member 101b which is positioned symmetrically with the pressing member 101a sandwiching the mounting head 1. It will be done.

In this way, the external pressing members 101a, 101b
The chucks 48 on the rotating side are opened by the chucks 48, and the chucks 48 of the chucks 2, 3 are opened by the first and second pressing levers 102, 103 on the outside.
3 and the push section 44 are configured to move forward. Therefore, since the mounting head 1 itself has a structure that does not require a driving source, the mounting head 1
becomes extremely small, and the entire device is accordingly miniaturized.

Also, although it is equipped with two sets of tracking heads, these two sets of tracking heads 2 and 3 are
Since the structure is such that it can be attached to a single mounting head 1 that rotates 90 degrees left and right, it is possible to
The entire device is smaller than the one in which each head is used in parallel, and yet it can exhibit the performance of two tracking heads.

Next, reference numeral 105 shown in FIG. 4 indicates a holding member 25.
a and 25b, respectively, and this sensor 105 detects the pressed portion of the rotating chuck 48 when the rotating chuck 48 is open and both claws 53 and 54 are gripping the chip part. 56 presses the protrusion 106 to turn it on. However, this sensor 10
5 is attached to the holding member 25a (which may be the rectangular parallelepiped end 45 of the chuck portion 43), and the rotating side chuck 48 is attached to the rectangular parallelepiped end 45, so that the sensor 105 and the rotating chuck 48 are always together. Rotate 90 degrees. Therefore, the sensor 105 should always be on until the tracking head 2 opens at the component supply position, grips a component, rotates 90 degrees, and mounts the component on the board 9. That is, if the sensor 105 turns off during this time, it is a signal that the component is not being gripped, so the chucking state of the component is always maintained until the component is gripped by the sensor 105 and mounted on the board 9. It is confirmed.

(Description of Parts Supply Machine) The rotary parts supply machine 7 (7a, 7b will be collectively referred to as 7) will be explained with reference to FIGS. 2, 10, and 11.

The parts feeder 7 has a fixed part 110 that is the center of rotation.
The motor 111 is supported by this fixed part 110.
and a rotating part that is rotationally driven via a reduction gear 112 (FIG. 2) and the like. This rotating section includes a lower sorting rotating section 113 driven by the motor 111, and a lower sorting rotating section 113 driven by the motor 111.
Upper part supply unit 11 detachably attached to the top
It is composed of 4.

The fixed part 110 is composed of a base plate 115 fixed on a base (not shown) and a cylindrical center post 116 fixed to the base plate 115.
Bearings 117a and 11 at both ends are located in the center hole of 6.
Sliding shaft 118 that can be slid up and down guided by 7b
is provided. At the bottom of this sliding shaft 118 is a rotating lever 120 that rotates around a fulcrum pin 119 provided on the base plate 115.
are connected via a pin 121, and a horizontal shaft 123 with rollers 122 rotatably attached to both ends is provided at the top.

The lower sorting rotation part 113 is connected to the center post 11
Bearings 124a, 1 provided at both ends of the outer periphery of 6
A cylindrical inner central member 125 that rotates while being supported by 24b, and a lower flange 1 of this central member 125.
26, a ring-shaped lower annular member 135 fixed to the outer edge of the lower disc member 127, and an annular gear 128 fixed to the lower annular member 135. It consists of This gear 128 is meshed with the reduction gear 112, and the lower disc member 12
A vertical positioning pin 129 is located at a predetermined position of 7.
and a female screw hole 130 are provided, respectively. The outer edge of the lower disc member 127 is formed into a ring-shaped stepped outer edge 131 that extends one step lower, and the stepped outer edge 131 has the magazine 10 (10
An escapement (feeding member) 132 that receives chip parts one by one from the chips (a and 10b collectively referred to as 10), feeds them out in the radial direction, and delivers them to the chucking head 2 or 3 is used to attach the magazine 10. It is provided according to the pitch (see explanation of parts delivery device). The escapement 132 stopped at a predetermined position (component supply position) is moved by the rotary lever 1 which is rotated around a fulcrum shaft 133 provided on the bead plate 115.
34.

The component supply section 114 has flanges 13 on the top and bottom.
an outer central member 138 having a diameter of 6,137 and fitted around the outer periphery of the inner central member 125;
Upper disk member 13 formed in a shape along 27
It consists of 9. A ring-shaped stepped outer edge portion 140 of the upper disc member 139 is provided with a lock member for attaching a magazine, which will be described later, at a position corresponding to the escapement 132. At predetermined positions of the upper disc member 139, a fitting hole 141 and a rod insertion hole 142 are provided at positions corresponding to the positioning pin 129 and the female screw hole 130, respectively. On the other hand, three vertical guide shafts 143 are fixed around the circumference of the upper flange 136 of the outer central member 138, and the upper flange of a cylindrical guide member 144 is slidably inserted into the outer periphery of the vertical guide shaft 143. A horizontal plate 146 is attached to 145 . Between this horizontal plate 146 and the outer central member 138, three tension springs 147 for return are stretched around the circumference, and these tension springs 147
Normally, the horizontal plate 146 is biased by the roller 12.
2 has been contacted. Further, a holding plate 148 is fixed to the upper part of the vertical guide shaft 143 to connect these parts, and a handle 149 that can be raised and lifted is attached to this holding plate 148.

On the other hand, a handle 150 is provided at the upper part at a position corresponding to the female threaded hole 130 and the insertion hole 142, and a male thread 1 screwed into the female thread 130 is provided at the lower part.
A connecting rod 152 is provided with a connecting rod 51 formed therein. That is, this connecting rod 152 is connected to the holding plate 14.
8 and the inner central member 138 are guided by bearings 153 and 154 provided on the upper flange 136, respectively, and are configured to be movable up and down, and a cylindrical spring receiver 155 with a single flange is inserted into the lower step from below. A compression spring 156 is further inserted into the outer periphery. Therefore, the connecting rod 152 is inserted into the insertion hole 1.
42 into the female screw hole 130, the cylindrical spring receiver 155 descends as it is screwed in, and when its lower end surface contacts the washer 157 on the upper surface of the upper disc member 139, the connecting rod 152 is not screwed in any further. Stop. That is, the cylindrical spring receiver 155 serves as the bolt head of the bolt, and since it is tightened via the compression spring 156, the screw 151 will not loosen. Further, on the outer edge of the horizontal plate 146, a magazine holder 158 made of iron is arranged vertically downward at a predetermined magazine pitch along the circumference.

With the above structure, when the threaded portion 151 of the connecting rod 152 and the female threaded portion 130 are uncoupled, the upper part supply section 114 and the lower sorting rotation section 113 are disengaged. Therefore, by raising the handle 149 and lifting it upward, the first
As shown in FIG. 1, the upper part supply section 114 can be easily removed from the lower sorting rotation section 113. To connect the two, align the fitting hole 141 with the positioning pin 129, align the inner surface 159 of the outer central member 138 with the outer surface 160 of the inner central member 125, push down the upper component supply section 114, and press the upper component supply section 114 onto the lower sorting rotation section 113. It should be placed on. Then, by turning the connecting rod 152 to connect the two, the two are connected in the vertical direction.

Note that the fitting hole 141 is long in the radial direction and formed into a long hole that fits perfectly in the rotational direction, so it is easy to connect during the above connection, and there is no deviation in the rotational direction after connection, so that the upper part 114 is connected to the lower part 113. It is positioned accurately in the rotational direction, and rotational torque is transmitted from the lower part 113 to the upper part 114. Furthermore, as mentioned above, the upper part 114 and the lower part 113 are connected to the inner surface 159 of the outer central member 138 and the inner central member 125.
Since this is done by fitting with the outer surface 160 of the outer surface 160, the two do not shift in the radial direction due to this fitting. That is, the upper part 114 is precisely positioned and coupled to the lower part 113. On the other hand, the lower separate sorting rotary section 113 has a gear 1 necessary for positioning the rotary section.
28 and an origin described later are attached, and these remain as they are when the upper part 114 is attached or detached, so that the positioning of the rotating part will not be disturbed due to the above-mentioned attachment or detachment.

Next, as described above, the lower sorting rotation section 113 is rotationally driven by the motor 111 together with the upper component supply section. Similarly, the origin detection sensor 161 provided on the fixed side
is used. That is, the origin of the rotation side that should be the reference is detected by this sensor 161, the rotation of the motor 111 from this origin is counted, and when this count matches the programmed one,
Motor 111 is configured to be stopped. Also, in conjunction with the cam 15, a rotating lever 120 is provided.
When the magazine 10
The hopper case part 166 is the parts supply pipe 16
It moves up and down relative to 7. Although the details will be described later, the escapement 132 is pressed by the rotation of the rotation lever 134 which is also linked to the cam 15.

(Description of Hopper Type Magazine) The hopper type magazine 10 will be described with reference to FIGS. 12 and 13.

The magazine 10 is molded from synthetic resin or the like, and includes an upper hopper case 166, a guide shaft 168 that guides the hopper case 166 in a vertically slidable manner, and a magazine lower member 169 attached to the lower end of the guide shaft 168. The component supply pipe 167 is attached to the lower member 169 and communicates with the inside of the upper hopper case 166.

The hopper case 166 has a narrow box shape, and is provided with a hopper 170 having a bottom surface inclined at a predetermined angle.The hopper case 166 has an outlet at the bottom of the hopper 170 that guides a component supply pipe 167 in the vertical direction. A guide portion 171 is formed. A guide groove 172 for vertically guiding the guide shaft 168 is formed in the front part, a rubber magnet 173 is attached to the back side, and both side plates 164 are fixed with screws 165. .

The magazine lower member 169 is connected to the guide shaft 16
It is attached to the bottom of 8 with screw 174,
A component supply pipe 167 is fixed inside. A guide groove 176 is formed below this pipe 167 to communicate with the lower end of this pipe 167 and further guide the parts from the pipe 167 to a parts outlet 175.
77 to be opened and closed.
That is, the shutter 177 is connected to the magazine lower member 169.
It is an L-shaped lever that is installed inside the lower member 169 so as to be rotatable around a fulcrum pin 178 fixed to the lower member 169, and is normally biased by a compression spring 179 so that one end 180 of the lever is attached to the part. Exit 175 is closed. However, when the magazine 10 is attached to the component feeder 7 and the other end 181 of the shutter 177 is placed on the component feeder 7, the shutter 177 rotates counterclockwise against the compression spring 179. Then, the component outlet 175 is opened.

A stopper 182 consisting of a pin screwed into the guide shaft 168 is fixed to the guide shaft 168, and the forward protrusion of this pin 182 engages with a long hole 166a formed in the front surface of the hopper case 166. Possibly the guide shaft 16
8 is prevented from slipping out.

Next, the mounting and locking of the magazine 10 on the component feeder 7 will be explained.

At the bottom of the vertical magazine holder 158 provided in the component feeder 7, there is a horizontal guide groove 184 with a groove width corresponding to the thickness of the hopper case 166 of the magazine 10, and a cutout groove 185 for the component feed pipe 167. A horizontal holder 186 is provided.

On the other hand, the lower disc member 127 of the parts supply machine 7
A lower protrusion 18 of the magazine lower member 169 is attached to the outer edge 131 of the magazine 10 at each mounting pitch of the magazine 10.
A cutout 188 into which the side surface of the lower annular member 135 is fitted is formed, and the escapement 132 is disposed and configured to slide on the upper surface of the lower annular member 135 that is visible through the cutout 188. A ring-shaped edging member 189 (not shown) is attached to the front surface of this notch 188, that is, to the outer circumferential surface of the outer edge portion 131, in which a portion where the escapement 132 enters and exits is notched (not shown).

Further, the outer edge 140 of the upper disc member 139 has a recessed portion in the center, and guide surfaces 190 that are inclined in the magazine direction (forward) are formed on the protruding side plates. A lock member 192 with a notch 191 formed on the lower surface of each end.
is attached by a guide bolt 193.
The locking member 192 is guided through the elongated hole 194, and the stepped circumferential surface 19 of the upper disc member 139 is
A compression spring 196 tensioned between the magazine and the magazine 5 urges it forward, that is, toward the magazine side. The locking member 192 has a distal end formed at a protruding edge 19 formed on the outer periphery of the stepped outer edge 140.
It is normally stopped by contacting 9,
Also, the release lever 19 is attached to this lock member 192.
7 is installed.

To attach the magazine 10 to the parts supply machine 7,
With the guide shaft 168 fully raised and shortened, the hopper case 166 is first inserted into the guide groove 184 of the lower holder 186 of the magazine holder 158. In this way, the rubber magnet 173 on the back side will be attracted to the iron magazine holder 158, and the hopper case 166 will be attached to the magazine holder 158.
It is fixed at 8. Next, the lower part 169 of the magazine
Push the lower protrusion 187 downward to cut out the notch 18
8, the fulcrum pin 178 protruding from side to side will align with the inclined guide surface 1 of the locking member 192.
90, so that as the lower member 169 is pushed down, the locking member 192 compresses the compression spring 19.
6 and is moved backwards. and fulcrum pin 1
78 reaches the lower end of the inclined guide surface 190, the locking member 192 moves back and the fulcrum pin 178 enters the notch 191 at the lower end and is locked. At the same time, the end portion 181 of the shutter 177
Since it is placed on the upper surface 198 of the stepped outer edge portion 131 of No. 7, the shutter 177 rotates and the component outlet 175 is opened as described above.

That is, in this state, the lower member 169 is locked vertically by the lock of the fulcrum pin 178, circumferentially by the fitting between both sides of the notch 188 and the lower projection 187, and radially by the lock. Member 192
The front surface 187a of the lower protrusion 187 is pressed against the ring-shaped border member 189 under pressure, thereby being accurately positioned and fixed to the component feeder 7. Therefore, since the guide shaft 168 attached thereto is also fixed, when the magazine holder 158 moves up and down, the hopper case part 166 is guided by the fixed guide shaft 168 and moves up and down. In this way, hopper 1
Since the parts supply pipe 167 moves up and down inside the hopper 17, by continuing this operation, the hopper 17
Parts inside the pipe 167 are facilitated to enter the pipe 167.

Next, to remove the magazine 10, press the compression spring 196
When the release lever 197 is pushed against this, the lock member 192 is moved back and the fulcrum pin 178 is unlocked, so the lower member 169 is pulled upward in this state. Then, by pulling the hopper case 166 forward, the magazine 10 can be removed from the component supply machine 7 very easily, together with the guide shaft 168, the component supply pipe 167, and the like.
Since the stopper 182 is provided, the hopper case 166 will not accidentally slip out from the guide shaft 168 in this removed state.

Note that the lower member 169 of the magazine 10 is connected to the outer edge 140 of the upper disc member via the lock member 192.
In addition, since the hopper case 166 is attached to the magazine holder 158, the parts supply machine 7
When the upper component supply section 114 is attached and detached in , the magazine 10 is attached and detached together with the upper component supply section 114.

(Description of Parts Delivery Device) Next, the chip parts delivery device will be described with reference to FIG. 12 and FIGS. 14A to 15B.

In order to receive the chip parts supplied one by one from the component supply pipe 167 of the magazine 10 and to send the received parts between the chuck claws of the chucking head 2 (the same applies to 3), the escapement (feeding member) is used. ) 132 and a pivot lever 134 are used. Escapement 13
2 is provided at each mounting position of the magazine 10 on the rotating side of the component feeder 7, and the rotating lever 134 is provided only at the component feeding position on the fixed side.

The escapement 132 is formed into a long rectangular parallelepiped, and the component receiving portion 233 at the tip thereof is formed into a flat plate with a thickness approximately equal to the height of the chip component (the height of the component coming down from the component supply pipe 167 of the magazine). has been done. It is slidably provided in a guide groove 235 in the stepped outer edge portion 131 of the lower circular member 127 of the component feeder 7 and guided by the guide groove 235 and the upper surface 234 of the lower annular member 135. There is. and internal recess 236
A return compression spring 238 is inserted between a stopper 237 fixed to the outer edge 131, and the escapement 132 is biased by this spring force and restrained by the stopper 237, so that the escapement 132 can be moved to its component receiving portion. 233 is the component outlet 175 of the magazine 10
It is configured to accurately return to a predetermined relative position and stop.

Parts receiving section 233 of escapement 132
For example, there is a square chip (rectangular chip) 2 at the tip of the
In the case of No. 39, as shown in FIG. 14B, the chip has the same rectangular shape as the supplied chip but is slightly larger.
That is, a rectangular through hole 240 is formed with a shape and size suitable for inserting the descended component as it is. A rectangular notch hole 242 passing approximately through the center of the through hole 240 and having an opening 241 at the end is formed to intersect with the through hole 240 in the sliding direction of the escapement 132.

On the other hand, the chuck pawl 53 at the tip of the chuck portion of the chuck head 2 is formed wide enough to accommodate the component receiving portion 233 at the tip of the escapement 132, and the chuck pawl 54 is formed in the notch hole. The width is narrow enough to pass through 242. Reference numeral 66 is the push rod that pushes out the gripped part 239 from between the chuck claws 53 and 54 at the mounting position and mounts it on the board.

Since it is configured as above, magazine 1
The part 239 supplied from 0 is inserted into the through hole 240 at the tip of the escapement 132 stopped at a predetermined receiving position, and while being held in the through hole 240, the part 239 is inserted into the upper surface 23 of the lower annular member 135.
4. However, since this through-hole 240 is formed to have almost the same shape and dimensions as the chip component 239 to be inserted, the inserted chip component will not fall or become misaligned within this through-hole 240. . Therefore, from this state, the escapement 13 is pushed by the rotating lever 134.
2 moves onto the chuck claw 53, the chip part 239 remains in a stable state held within the through hole 240, and is moved onto the wide chuck claw 53 in this state.

In this state, that is, when the component 239 is placed on the wide chuck claw 53, the escapement 132
When the chuck head 2 is rotated in the direction of the arrow a while being held in the through hole 240, the chuck pawl 54 on the rotation side is closed by the biasing force of the tension spring as described above, and the component 239 is released. Both chuck claws 53,
Checked within 54 hours. At the same time, the narrow chuck claw 54 passes through the notch hole 242 and moves in the direction of arrow a while holding and chucking the head of the component 239. Therefore, part 239 is escapement 13
Since the parts are chucked while being held in the through-hole 240 of No. 2 and moved to the mounting position after passing through the through-hole 240, there is no possibility that the parts may fall over or become misaligned when chucked, making chucking unnecessary. Never.

Note that when the chuck pawl 53 passes through the notch hole 242, the rotary lever 134 moves back, so that the escapement 132 is returned to a predetermined component receiving position by the spring 238. When it returns, the chip part 239 descends from the magazine again and enters the through hole 2.
Since it is inserted within 40, escapement 13
2 is pushed by the rotating lever 134 and moves forward again, and the chuck claw 5 of the tracking head 2 returns.
The operation of sending out the parts is repeated between 3 and 54.

What is shown in FIGS. 15A and 15B is a case where the component is a cylindrical chip 243, and in this case, a circular through hole 244 that fits the middle cylindrical chip 243 is formed. And chuck claw 54
As in the case of the square chip, the notch hole 242 through which the through hole 244 passes has an opening 241 at its end, with its center passing approximately through the center of the through hole 244, and
44, and the width of this rectangle is smaller than the diameter of the through hole 244. Therefore, it is clear that the same effects as in the case of the square chip can be achieved in this case as well.

Effects of the Invention As explained above, according to the present invention, the left and right
Two sets of chips are attached to one chip mounting head which is rotatably supported, and are capable of gripping the chip at positions where their central axes are perpendicular to the rotation center and pushing the gripped chip in the mounting direction. Because it has a tracking head, it is easier to install than the conventional rotary type with multiple tracking heads or the double head type in which two tracking heads are arranged in parallel at predetermined positions. The head section is significantly smaller and the overall device can therefore be made smaller.

In this way, two sets of chucking heads are used, and each of these two sets of chucking heads receives chip parts from a set of left and right chip part feeders each having at least one magazine. Because it is configured to be supplied one by one,
Chip parts of different sizes and shapes, including cylindrical chips, etc., can be mounted at the same time.

Moreover, this chip component mounting operation includes an operation in which the chip component mounting head is alternately rotated 90 degrees so that the one chucking head receives the chip component from the one chip component feeder; Since the other chucking head is configured to alternately mount the components supplied from the other chip component feeder onto the board, there is no waste in the mount operation according to the present invention. There is no waiting time, so chip parts can be mounted efficiently and quickly.

That is, according to the present invention, chip parts of different sizes and shapes, including cylindrical chips, etc., can be mounted simultaneously and at high speed in a sequential mounting method that can quickly respond to changes in product types. A possible chip component mounting device can be provided.

[Brief explanation of drawings]

The figures show an embodiment of the chip component mounting device according to the present invention. FIG. 1 is a front view of the entire device, FIG. 2 is a plan view of the entire device, and FIG. 3 is a chip component mounting head. FIG. 4 is a perspective view of the mounting head seen from the rear, FIG. 5 is a front view of the mounting head, FIG. 6 is a vertical sectional view of the mounting head, and FIG. 7 is a perspective view showing the relationship with the pressing lever. A perspective view of the mounting head separated into two assemblies, FIG. 8 is an exploded perspective view of the separated assembly, FIGS. 9A-
FIG. 9D is an explanatory diagram showing the mounting order of chip parts;
FIG. 10 is a longitudinal sectional view of the parts feeder, FIG. 11 is a partial longitudinal sectional view showing the upper part of the parts feeder in a separated state, FIG. 12 is a partial longitudinal sectional view showing the mounted state of the magazine, and FIG. Fig. 13 is an exploded perspective view of Fig. 12, Figs. 14A to 15B are explanatory diagrams of delivery of parts to chuck claws, Fig. 14A is a partial vertical sectional view of the delivery part in the case of square chips, and Fig. 14B. 15A and 15B are views similar to FIGS. 14A and 14B in the case of a cylindrical chip. In addition, in the symbols used in the drawings, 1... Chip component mounting head, 2, 3... Chucking head, 6... Rotating shaft, 7a, 7b... Rotary type component feeder, 9... Board, 10a, 10b... Magazine , 11
a, 11b...Parts delivery device. It is.

Claims (1)

[Claims] 1. Two sets of ticking heads capable of grasping a chip component and pressing the gripped chip component in the installation direction are provided at positions where their central axes are orthogonal to each other, and each set is rotated 90 degrees to the left and right about the intersection of the central axes. A chip component mounting head movably supported, and a pair of chip component feeders on each side, each having at least one magazine and supplying the chip component one by one to each of the chucking heads. By alternately rotating the chip component mounting head by 90 degrees, the one chucking head receives chip components from the one chip component feeder, and the other chucking head receives the chip components from the chip component feeder. A chip component mounting device characterized in that the operation of mounting the component supplied from the other chip component supplying machine onto the board is performed alternately.