JPH0536900U - Chip mounter - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a chip mounter that allows easy cassette replacement with high positioning accuracy. [Structure] Cartridge base 3 on which cassette 2 is placed
The receivers 11 are provided at the four corners of the above, and the base 1 is provided with the guide surfaces 19 for guiding the movement of the receivers 11 and the recesses 15 of the receivers 11 which are detachable.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a chip mounter only for mounting a chip component housed on a reel of a cassette on a printed circuit board, and particularly for mounting and demounting a cartridge base on which a plurality of cassettes are mounted on a base. Regarding the mechanism.

[0002]

[Prior Art]

 The chip mounter mounts the chip components in the tape wound on the reel onto the printed circuit board by vacuum sucking the tape while unrolling the tape. It's coming.

The reel is configured as a cassette together with a tape feeding mechanism and the like, and a plurality of cassettes are prepared according to the type of chip component. A plurality of these cassettes are placed and fixed in a line on the cartridge base, and the cartridge base is mounted on the base to be supplied to the component receiving position.

[0004]

[Problems to be solved by the device]

 By the way, when there are no more chip parts in the cassette on the cartridge base, it is necessary to remove the cartridge base from the base and replace it with a new cassette. In this case, the cartridge base has a high positioning at the part receiving position of the base. Since it must be fixed with precision, usually, several parts of the cartridge base were fixed to the base with screws. However, while fixing with screws has the advantage of ensuring positioning accuracy, it requires time to loosen and loosen the screws, which requires time to replace the cassette, and the chip mounter must be stopped during this time. There is a problem that operating efficiency is poor.

A method of automatically exchanging a used cassette and a new cassette by using a cassette transfer device has been proposed (Japanese Patent Laid-Open No. 61-121398), but this one is a cassette. Not only is the control of the transfer device complicated and costly, but there is also the problem that the chip mounter becomes large because a space for exchanging the cassette is required on the base side.

The present invention has been made in view of the circumstances of the prior art as described above, and an object thereof is to provide a chip mounter capable of easily performing cassette replacement with high positioning accuracy. ..

[0007]

[Means for Solving the Problems]

 To achieve the above object, the present invention comprises a base, a cartridge base detachable from the base, and a plurality of cassettes mounted on the cartridge base. In a chip mounter for mounting chip components housed in a cassette on a printed circuit board, a plurality of receptacles having recesses are provided on the cartridge base, and the receptacles are mounted on the base in a mounting / removing direction of the cartridge base. The most main feature is that a guide part for guiding to the above and a plunger elastically biased in a direction to engage with the recess of the receiving body are provided.

[0008]

[Action]

 The cartridge base on which a plurality of cassettes are placed is fixed to a predetermined position of the base with high positioning accuracy by the plunger engaging with the concave portion of the receiving body, and the receiving body moves along the guide portion. Can be easily attached to and detached from the base.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 is an explanatory view showing a schematic configuration of a chip mounter according to an embodiment of the present invention, FIG. 2 is a perspective view of a base and a cartridge base provided in the chip mounter, and FIG. 3 is a plan view of the cartridge base. 4 is an explanatory view showing the positioning operation of the cartridge base.

In FIG. 1, reference numeral 1 denotes a base, and a cartridge base 3 on which a plurality of cassettes 2 are mounted is fixed on the base 1. A conveyor 4 is installed in front of the base 1, and the printed board 5 is conveyed by the conveyor 4 in a direction orthogonal to the plane of the drawing. An orthogonal robot 6 is installed above the base 1 and the conveyor 4, and the orthogonal robot 6 is provided with a suction head 7 which can be moved up and down in the direction of arrow CD. Can be moved by the orthogonal robot 6 in an in-plane direction orthogonal to the paper plane containing the arrow AB.

As shown in FIGS. 2 to 4, the cartridge base 3 includes a pair of side plates 8, a front top plate 9 and a rear top plate 10 installed between the side plates 8 and an upper front part of the side plates 8. It is provided with a cylindrical receiving body 11 attached to each of the lower rear portions and a handle 12 attached to the rear side of both side plates 8. It is removable in any direction. As is apparent from FIG. 3, the front top plate 9 is provided with a plurality of round holes 13 at a predetermined pitch along the longitudinal direction thereof, and the rear top plate 10 corresponds to these round holes 13. The long hole 14 is provided. Further, although concave portions 15 are provided on the upper surface of each of the receiving bodies 11, the concave portions 15 do not all have the same shape, and the front one (upper right corner in FIG. 3) has a circular opening. The conical concave portion 15 has a concave V-shaped concave portion 15 having a long opening in the front-rear direction at the rear one (the lower right corner in FIG. 3). The corners and the lower left corner) are concave portions 15 having a V-shaped cross section and having a long opening in the left-right direction.

The cassette 2 has a main reel 17 around which a tape containing a chip component 16 (see FIG. 1) is wound, and a feeding mechanism (not shown) for feeding the tape by one pitch of the chip component 16. And a take-up reel 18 for taking up the pressure paper of the tape, and the chip component 16 is exposed when the pressure paper is taken up by the take-up reel 18. Although not shown in the drawing, the cassette 2 is provided with a clamping mechanism and two positioning pins that hang down at a predetermined interval. These positioning pins are provided with the round hole 13 and a corresponding long hole. By inserting the cassette 2 into the cartridge base 3, the cassette 2 is accurately positioned on the cartridge base 3 with the round hole 13 as a reference, and is fixed onto the cartridge base 3 by the clamp mechanism. Although only one cassette 2 is shown in FIG. 2 for convenience of description, the cassettes 2 accommodating various chip components 16 are actually mounted and fixed in a line on the cartridge base 3.

Returning to FIG. 2, the base 1 is provided with a pair of guide surfaces 19 extending in the attachment / detachment direction of the cartridge base 3 (arrow E-F direction). Notches 20 are formed at four locations below the rear ends of both guide surfaces 19 to allow the receiving bodies 11 to be inserted, and mounting holes 21 are formed to reach the notches 20. As shown in FIG. 4, a spherical plunger 22 and a spring 23 that biases the plunger 22 toward the notch 20 are housed in each mounting hole 21, and the plunger 22 and the spring 23 are mounted in the mounting hole 21. The lid 24, which is screwed into the opening, prevents the cap 24 from falling off from the mounting hole 21.

Next, the operation of the above embodiment will be described. First, in FIG. 1, by driving the orthogonal robot 6, the suction head 7 is moved in the arrow AB and the plane orthogonal to this, and the suction head 7 is positioned directly above the chip component 16 of any cassette 2. Let Next, the suction head 7 is lowered in the direction of arrow D to suck the chip component 16, and in this state, the suction head 7 is raised in the direction of arrow C, and the chip component 16 is taken out from the tape. After that, the orthogonal robot 6 advances the suction head 7 in the direction of arrow B to the position indicated by the chain double-dashed line, and lowers the suction head 7 in the direction of arrow D again at that position to suck the suction head 7. The formed chip component 16 is mounted on a predetermined position of the printed board 5 via cream solder. One or a plurality of chip components 16 of various types are mounted on the printed circuit board 5. In the case of the same type of chip components 16, the chip components 16 are sequentially taken out from the same cassette 2 by repeating the above operation. The printed circuit board 5 is mounted at a predetermined position. If another type of chip component is to be mounted on the printed circuit board 5, the orthogonal robot 6 is driven to move the suction head 7 in the direction orthogonal to the paper surface of FIG. It suffices to position the suction head 7 directly above the cassette 2 that has been set. The printed board 5 on which all of the required chip components 16 are mounted in this way is sent to a flow furnace (not shown) by the transfer conveyor 4, where the cream solder is melted and solidified, and The mounting of the component 16 is completed.

During the above operation, when the remaining amount of the chip components 16 stored in any cassette 2 becomes small or a different type of chip component 16 is needed, the cassette 2 group that is no longer needed is mounted. The mounted cartridge base 3 may be removed from the base 1, and instead of that, another cartridge base 3 on which a new group of cassettes 2 is mounted may be attached to the base 1. This exchange operation will be described mainly with reference to FIGS. 2 and 4. First, when removing the cartridge base 3 from the base 1, grasp 12 by grasping the cartridge base 3 in the direction of arrow F in FIG. , The engagement between the concave portion 15 of the receiving body 11 and the plunger 22 is released. In this case, since the left and right side plates 8 of the cartridge base 3 are restricted from moving in the left-right direction by the inner wall of the base 1, the two front receivers 11 smoothly move on the base surface 19 of the base 1. The cartridge base 3 can be easily removed from the base 1.

When mounting a new cartridge base 3 on the base 1, the front two receivers 11 are placed on the guide surface 19 and the cartridge base 3 is pushed in the direction of arrow F in FIG.

When the two front receivers 11 advance on the base surface 19 and reach the inside of the notch 20 as shown in FIG. 4A, the rear two receivers 11 also come into the corresponding notches 20. Then, when the cartridge base 3 is further pushed in, as shown in FIGS. 4B and 4C, each plunger 22 goes over the peripheral surface of the corresponding receiving body 11 and falls into the recess 15. Therefore, the new cartridge base 3 and the new cassette 2 group mounted and fixed on the new cartridge base 3 are engaged with the recesses 15 of the corresponding receiving bodies 11 by the respective plungers 22, so that the parts of the base 1 are It is installed in the receiving position. Here, the shape of the opening end of the recess 15 provided in each receiving body 11 is circular only on the front right side, and the remaining three are non-circular long in the front-rear direction or the left-right direction. With the right circular recess 15 as a reference, the recess 15 is positioned in the left-right direction by the recesses 15 that are long in the front-rear direction to the rear, and is positioned in the front-rear direction by the recesses that are long in the left-right direction on the front left and rear left. Therefore, even if the plungers 22 and the receivers 11 are slightly displaced from each other, this displacement is absorbed by the recess 15 having a long opening in the front-rear direction or the right direction, and the cartridge base 3 is mounted on the base 1. It can be mounted with high positional accuracy.

The shape of the recess 15 of each receiving member 11 is not limited to the combination of the above-described embodiments. In short, of the four recesses 15 on the front, rear, left, and right, the front one has a circular opening. In the recess 15, the other three 1 or 2 may be the recess 15 having an opening long in the front-rear direction, and the rest may be the recess 15 having an opening long in the left-right direction.

[0019]

[Effect of the device]

 As described above, according to the present invention, the cassette exchange can be performed by the simple operation of engaging and disengaging the receiver provided on the cartridge base with the plunger provided on the base and transferring the receiver along the guide portion. Can be performed with high positioning accuracy.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a schematic configuration of a chip mounter according to an embodiment of the present invention.

FIG. 2 is a perspective view of a main part of the chip mounter of FIG.

FIG. 3 is a plan view of a cartridge base included in the chip mounter of FIG.

FIG. 4 is an explanatory view showing a positioning operation of the cartridge base of FIG.

[Explanation of symbols]

 1 Base 2 Cassette 3 Cartridge Base 5 Printed Circuit Board 7 Suction Head 8 Side Plate 9 Front Top Plate 10 Rear Top Plate 11 Receptor 15 Recess 16 Chip Component 17 Guide Surface (Guide) 20 Notch 21 Mounting Hole 22 Spring 24 Lid

Claims (2)

[Scope of utility model registration request] 1. A chip comprising a base, a cartridge base detachable from the base, and a plurality of cassettes mounted on the cartridge base, the chips being housed in any cassette of the cassettes. In a chip mounter for mounting components on a printed circuit board, a plurality of receivers having recesses are provided in the cartridge base, and a guide portion for guiding the receivers in a mounting and demounting direction of the cartridge base is provided on the base. A tip mounter provided with a plunger elastically biased in a direction to engage with a recess of the body. 2. Each of the receivers is provided at four positions on the front, rear, left and right of the cartridge base, and one of the recesses of each of the receivers has a circular opening at the front, and the remaining three have the above-mentioned circular openings. The chip mounter according to claim 1, wherein the chip mounter has an opening that is long in the mounting / removing direction of the cartridge base and an opening that is long in the direction orthogonal to the mounting / demounting direction.