JPH01103900A - Rotary head type chip placer - Google Patents

Abstract

PURPOSE:To enable the movement of a sucking nozzle to be simplified as well as to enlarge components in the number of kinds to be handled with the sucking nozzle and also make the sucking nozzle simple in structure by a method wherein a takeout means which transfers a component sucking nozzle from the arrangement of sucking nozzles of required kinds to a nozzle attaching section is provided to the nozzle attaching section. CONSTITUTION:A nozzle containing cartridge 22 is provided, where a takeout means conveys a required kind of a component sucking nozzle to a nozzle attaching section and an intake means conveys component sucking nozzles 31a-31e which are detached from a sucking head 25 and positioned at a nozzle detaching section 22a to a required component sucking nozzle. And, the sucking nozzle 25 is positioned at the nozzle detaching section 22a or the nozzle attaching section 22b of the nozzle containing cartridge 22 depending on the rotation and the stop of a table 24, attaches or detaches the component sucking nozzles 31a-31e as occasion demands, and enables selection of a component sucking nozzle adequate for an electronic component to mount. By these processes, a sucking head can be simplified in structure and motion and enlarged in the number of kinds of components to be handled.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a rotary head type chip placer for transferring electronic components such as chip components (hereinafter referred to as electronic components) onto a circuit board or the like.

[Summary of the Invention] This invention comprises a plurality of suction heads each having a component suction nozzle replaceably attached to the tip thereof, which are arranged around the periphery of a rotatable table. A rotary head type chip, which is transferred from the chip to the circuit board side for mounting, is also placed in the placer. Below the table, a nozzle storage cartridge is provided that is equipped with multiple types of component suction nozzles and arranges the component suction nozzles for each type. The nozzle storage cartridge has a nozzle removal part and a nozzle mounting part, both of which are located at predetermined positions facing the rotation locus of the suction head, and the nozzle removal part includes a nozzle that is removed from the suction head. An intake means is provided for assembling the component suction nozzles into an array of the same type, and the nozzle mounting section is provided with an extraction means for transferring the component suction head from the array of component suction nozzles of a predetermined type to the nozzle mounting section. This simplifies the operation of the suction nozzles, reduces the number of suction nozzles, and simplifies the structure. Furthermore, it is possible to attach and remove multiple types of component suction heads, and transfer them to the circuit board. [Prior Art] Conventionally, as this type of rotary head type chip placer, the one shown in FIGS. 7 to 8(D), The ones shown in FIGS. 9 to 10 (B) are known.

In the former, four types of component suction nozzles 2, 3, 4.5 are fixedly installed in each of the four suction blocks 1 to 1, as shown in FIGS. 8(A) to 8(D). Various chip parts 6
, 7, 8.9, the appropriate nozzle rotates the suction block l (
(rotation). The suction blocks 1 to 1 are arranged around a rotatable table 10, and as the table 10 rotates (revolutions), the suction blocks I move to the component supply position I1 positioning/component inspection position ■1 component It is possible to stop at the installation position (■) and the defective parts discharge position (■). In addition, component suction nozzles 2, 3,
Can 4.5 be connected to a specified vacuum pump? This connection creates vacuum pressure between the passages.

Next, the latter has a plurality of suction nozzles 11 arranged around a rotatable table IO, and the suction nozzle II is the first suction nozzle II.
As shown in FIG. 0 (A) and FIG. 10 (B), the small diameter nozzle I2 and the large diameter nozzle 13 are switchable,
It can be applied to two types of chip component sizes.

[Problems to be Solved by the Invention] However, in the former type of conventional rotary head type depth placer, the individual suction blocks 1
Since it is always equipped with four types of component suction nozzles 2, 3° and 4.5, it is possible to handle four types of chip components 6, 7, and 8.9, but the weight of the suction block 1 is large. However, the problem is that the device itself becomes large. Further, since the suction block l has two rotational movements, that is, revolution and rotation, it is necessary to provide a drive mechanism for rotation on the table 10 side. Since two rotational movements are required in this way, there is a problem in that the accuracy of the stop position of the nozzle is poor and the accuracy of the component mounting position is lowered.

Next, in the latter conventional example, the suction nozzle 11 only needs to rotate (revolution) in the rotational direction of the table IO, and complicated movements can be avoided, but it is not possible to secure a large number of types of nozzles, and the mount The problem is that there are only a few types of chip components available.

This invention was devised in view of these conventional problems, and provides a rotary head type chip placer that simplifies the structure and operation of the suction head and expands the number of types of parts that can be handled. It is something that you are trying to gain.

[Means for Solving the Problems] The present invention comprises a plurality of suction heads, each having a component suction nozzle replaceably attached to the tip thereof, arranged on the periphery of a rotatable table. A rotary head type chip that transfers and mounts electronic components from the supply side to the circuit board side is also a placer, and is equipped with a plurality of types of component suction nozzles below the table, and a nozzle in which component suction nozzles are arranged for each type. A storage cartridge is disposed, and the nozzle storage cartridge has a nozzle removal part and a nozzle installation part respectively located at predetermined positions facing the rotation locus of the suction head, and the nozzle removal part has the suction part. An intake means is provided for assembling the component suction nozzles removed from the head into an array of the same type, and the nozzle mounting section is provided with an extraction means for transferring the component suction head from the array of component suction nozzles of a predetermined type to the nozzle mounting section. The solution is that a means has been established.

1 Effect] In the nozzle storage cartridge, the take-out means transports a predetermined type of component suction head to the nozzle installation section, and the intake means transports the component suction nozzle, which has been removed from the suction head and is located in the nozzle removal section, into a predetermined type. Transfer to the component suction nozzle. Then, as the table rotates and stops, the suction head is located at the nozzle removal section or nozzle installation section of the nozzle storage cartridge, and the component suction nozzle is removed and attached as necessary, and the suction head is positioned in the nozzle removal section or nozzle installation section of the nozzle storage cartridge, and the component suction nozzle is removed and attached as necessary to suit the electronic component to be mounted. Enables selection of component suction nozzles.

[Example] Hereinafter, details of a rotary head type chip placer according to the present invention will be described based on an example shown in the drawings.

FIG. 1 to FIG. 6(D) show this embodiment.

In the figure, reference numeral A denotes a rotary head type depth placer, which is roughly composed of a rotary head mechanism section 21, and a nozzle storage cartridge 22 having a nozzle removal section 22A and a nozzle attachment section 22B.

First, the rotary head mechanism section 21 includes a circular table 24 that is rotatably and horizontally disposed above an X-Y table B on which a circuit board 23 is mounted, and a circular table 24 that is arranged around this table 24. It has a plurality (10) of suction heads 25 to 25 arranged orthogonally to each other. The table 24 can be rotated and stopped as desired by a rotation drive device (not shown).

In addition, the suction heads 25 to 25 are arranged at equal angular intervals on the table 24, and at their tips (lower ends) are component suction nozzles 31a, 31b, 31c, 31d, which will be described later.
31e is provided. The suction head 25 is fixed to the lower end of a vacuum rod 25a rotatably provided on the table 24, and a gear 25b is provided around the upper part of the vacuum rod 25a, which is provided separately from the rotary head mechanism section 21. When the driving force transmission gear 30a of the suction head drive device 30 and the gear 25b mesh with each other, the suction head 25 can rotate.

As shown in FIG. 1, the rotary head mechanism section 21 is set so that the suction head can be stopped at the IO positions 1 to 1j.

Hereinafter, each position aj will be sequentially explained.

Position a) This is the position where the suction head 25 faces the supply section of the component supply device C that supplies electronic components.

Position b) This is a position where the table rotation angle is 36° with respect to position 1, and this is a position where the suction head 25 is on standby.

Position C) This is a position where an attitude correction table 27 for correcting the attitude of large components is provided below.

Position d) This is a position where an attitude correction table 28 for correcting the attitude of small parts is provided below.

Position e) Below is a line sensor 2 that detects whether the electronic component is properly held and whether it is a defective component.
9 is disposed at a position where the suction head 25 can be rotated by a predetermined angle θ by the suction head driving device 30.

Position f) Below is a position where the circuit board 23 mounted on the X-Y table B is placed, and where electronic components are mounted.

Position g) This is a position where the suction head 25 can rotate by a predetermined angle θ.

Position h) This is the position where parts with defects or the like are taken out, and a parts storage container (not shown) is prepared below.

Position i) This is the position where the nozzle removal part 22A of the nozzle storage cartridge 22 is arranged below.

Position j) Below is the position where the nozzle mounting portion 22B of the nozzle storage cartridge 22 is located.

Next, the configuration of the nozzle storage cartridge 22 will be explained based on FIGS. 3 to 6(D).

First, reference numeral 32 denotes a cartridge body having a substantially rectangular plane and a shallow container shape, with nozzle conveyance passages 42 and 43 formed inside two adjacent side edges, and one nozzle conveyance passage. 42 includes nozzle storage chambers 37, 38, 39, 4 parallel to each other in a direction perpendicular to the conveyance path 42.
0.41 is arranged so that communication is possible at one end. In addition, nozzle storage chambers 37, 38, 39, 40, 41
On the other end side, a nozzle return passage 44 parallel to the nozzle transport passage 42 is provided in each storage chamber 37.3B.

39, 40, and 41 so as to be able to communicate with each other.

In such nozzle storage chambers 37, 38, 39, 40, 41,
component suction nozzles 31a each having different sizes, shapes, etc.;
IO pieces of each of 31b, 31c, 31d, and 31e are stored.

A nozzle conveyance cylinder 34 equipped with an extrusion rod 34a is disposed at the end of the nozzle conveyance passage 42 opposite to the nozzle conveyance passage 43. .41 to the nozzle conveyance path 42 can be pushed out to the nozzle conveyance path 43. Further, a nozzle conveyance cylinder 35 equipped with an extrusion rod 35a is disposed at one end of the nozzle conveyance passage 43 on the side continuous with the nozzle conveyance passage 42, and the other end (i.e., the abutment part) The nozzle is attached to part 22B. Therefore, the component suction nozzle transported to the nozzle transport path 43 by the nozzle transport cylinder 34 is transported to the nozzle mounting section 22B by the nozzle transport cylinder 35. Please note that the nozzle installation is part 2.
2B is located below the position i described for the rotary head mechanism section 21 described above.

At each end of the nozzle storage chambers 37, 38, 39.
Stoppers 46a to 46e are provided which move up and down by means of 5, and by operating these stoppers, it is possible to send out a component suction nozzle located in any nozzle storage space to the nozzle conveyance path 42.

Furthermore, the end of the nozzle return passage 44 closer to the nozzle attachment portion 22B is connected to the nozzle removal portion 22A.
In addition, a nozzle return cylinder 36 equipped with an extrusion rod 36a is provided.

And the nozzle storage chamber 37, 38, 39° 40.4
1, nozzle storage chambers 37 are sequentially arranged on the side wall of the cartridge body located on the opposite side from the stoppers 46a to 46e.
~ Nozzle drive cylinders 33A, 3 are located at positions opposite to 4I.
3B, 33C, 33D, and 33E are arranged. In addition, each nozzle storage chamber 37 to
Stoppers 47 that can be moved up and down are provided at four locations on the extension of the boundary between the nozzle return cylinders 36 so that the component suction nozzle pushed out by the nozzle return cylinder 36 can be stopped at the entrance of a predetermined nozzle storage chamber. . In addition, a stopper 4 for stopping the component suction nozzle is provided in the nozzle storage chamber 41.
7 is not provided, and the side wall 32a of the cartridge body
replaces that function. Further, the stopper 47 is provided so as to be raised and lowered by a lifting cylinder 48 provided on the lower side of the cartridge main body.

Furthermore, a guide groove 49 is provided in the widthwise center of the nozzle conveyance passage 42, 43 and the nozzle return passage 44, into which the tip of the component suction nozzle is fitted and which allows the nozzle to slide in the longitudinal direction of the passage. ing.

Further, as shown in FIGS. 6(A) to 6(D), the nozzle mounting portion 22B is provided with an elevating rod 50 that can be moved up and down, and a component suction nozzle is attached to the suction head 25 located above. 31 can be installed. This lifting rod 50
As shown in FIG. 4, the nozzle is mounted so that it can be moved up and down by a cylinder 51.

Note that the nozzle removal part 22A and the nozzle installation part 22B
Similarly, a nozzle removal cylinder 52 is provided that drives a lifting rod (not shown) up and down.

Next, the operation and effect of this rotary head type chip placer will be explained.

First, if there is no need to replace the component suction nozzle 31 (when trying to suction electronic components of the same size and shape with the same type of component suction nozzle 31 as in the previous process), the suction head 25
and position i (with the predetermined component suction nozzle 31 attached).
position facing the nozzle removal part 22A of the nozzle storage cartridge 22) and position j (the position facing the nozzle removal part 22A of the nozzle storage cartridge 22)
By installing the nozzle in No. 2 at a position opposite to part 22B), when the suction head 25 is next moved to the component supply device C, the component suction nozzle 31 can properly suction and hold the electronic component. , the table 24 is rotationally driven to position c, d.

After step e, it becomes possible to mount the electronic component onto the circuit board 23 at position f.

Next, when the component suction nozzle 46 of the suction head 25 that has finished mounting the electronic component needs to be replaced, that is, the type of electronic component to be mounted next changes, and the component suction nozzle 31 needs to be replaced accordingly. In some cases, the stopper of the nozzle storage chamber 40 in the nozzle storage cartridge 22 is lowered, and then the nozzle drive cylinder 3
One component suction nozzle 31 by driving the 3D
d is pushed out into the nozzle conveyance path 42. Then, by driving the nozzle conveyance cylinder 34, the extrusion rod 34a moves the component suction nozzle 31d into the nozzle conveyance path 4.
Push out to 3. Then, the nozzle conveyance cylinder 35 is driven and the extrusion rod 35a moves to the component suction nozzle 31cl.
To attach the nozzle, push it out to the part 22B and wait for the component suction nozzle 31d.

Meanwhile, at position i, the suction head 25 releases the chucking mechanism 26 to drop, for example, the component suction nozzle 31b, which is no longer needed, onto a lifting rod (not shown) that is in an elevated state. Further, after the lifting rod is lowered, the component suction nozzle 31b is pushed out by the pushing rod 36a of the nozzle return cylinder 36. At this time, the stopper 47 is raised, and the component suction nozzle 31b is stopped at the entrance of the nozzle storage chamber 38 = 15
− to make Then, by driving the nozzle drive cylinder 33B, the component suction nozzle 31b is stored in the nozzle storage chamber 38.

In this way, the suction head 25 from which the component suction nozzle 31b has been detached moves to position j by the rotation of the table 24, and as described above, the nozzle attachment stops above the component suction nozzle 31d waiting in the part 22B. (Figure 6 (A)
). Next, the elevating rod 50 rises and the component suction nozzle 31d is fitted into the suction head 25, and the chucking mechanism 26 is activated to perform mounting (Fig. 6(B) and 6).
Figure (C)). Then, the elevating rod 50 descends.

The component suction nozzle 31d installed in this way attracts and holds the electronic component with the component supply device C, and after regulating the component posture at the position C or d, the component suction nozzle 31d is attached to the line sensor 29 at the position e.
The orientation of the part is adjusted at position e or g. Furthermore, electronic components are mounted on the circuit board 23 at position f.

It should be noted that if the line sensor 29 detects a defect, the electronic component is set to be dropped into a component container at a certain position.

By the way, FIGS. 6(A) to 6(D) show another embodiment of the nozzle removal part 22A, in which the chucking mechanism 26 of the suction head 25 is released and the push-down rod 51 is removed. By pressing down on the nozzle removal part 2,
It was designed to fall within 2A. Note that this nozzle removal portion 22A has a structure that does not require the above-mentioned lifting rod.

Although the embodiments have been described above, the present invention can be modified in various other ways. For example, the number of suction heads 25 is not limited to the number described above, and the configuration of the nozzle storage cartridge 22 can also be changed. Needless to say, various mechanisms can be applied as long as the nozzle removal section and the nozzle attachment section are provided.

Furthermore, it is of course possible to adopt a configuration in which the nozzle storage cartridge 22 can be automatically replaced with a cartridge housing another type of component suction head.

Furthermore, if the configuration is such that the vacuum pressure suitable for the component suction nozzle attached to the suction head 25 is automatically controlled, the force for suctioning and capturing each electronic component will be appropriate, and mistakes in suction and mounting of electronic components can be prevented. is also possible.

1. Effects of the invention] As is clear from the above description, in the rotary head type chip placer according to the present invention, the suction head 1
Since only one component suction nozzle is attached to the book, the only rotational movement is the rotation (revolution) of the table, which simplifies the operation of the component suction nozzle and improves the accuracy of component mounting. .

In addition, since the component suction nozzles are stored in the nozzle storage cartridge, many types of component suction nozzles can be prepared in the nozzle storage cartridge.Therefore, the suction head must be structured to include all types of component suction nozzles. This has the effect of reducing the suction head side. Furthermore, since a large number of component suction nozzles can be stored in the nozzle storage cartridge, there is an effect that the range of electronic components that can be mounted can be expanded.

[Brief explanation of the drawing]

FIG. 1 is an explanatory view showing an embodiment of a rotary head type depth placer according to the present invention, FIG. 2 is a perspective view of the same, FIG. 3 is a plan view of parts of a nozzle storage cartridge in the embodiment, and FIG. Same side view, Fig. 5(A) to Fig. 5(D)
6(A) to 6 are side sectional views showing the nozzle installation part.
Figure (D) is a side sectional view showing another embodiment, Figure 7 is an explanatory diagram showing the conventional example, Figures 8 (A) to 8 (D) are perspective views showing the conventional example, and Figure 9. is an explanatory diagram showing a conventional example, and Fig. 1O (
A) and FIG. 1O (B) are perspective views showing a conventional example. A...Rotary head type chip placer, 22...
- Nozzle storage cartridge, 22A... Nozzle removal part, 22B... Nozzle mounting part, 24... Table, 25... Suction head, 31a to 31e... Component suction nozzle. 〇 - １ F Bi“ku≧ Mainly mentioned

Claims (1)

[Scope of Claims] A plurality of suction heads each having a component suction nozzle replaceably attached to the tip thereof are arranged around the periphery of a rotatable table, and the component suction heads pick up electronic components from a supply side to a circuit board. A rotary head type chip that is transferred to the side and mounted is also a placer, and a nozzle storage cartridge is disposed below the table and is equipped with a plurality of types of component suction nozzles and arranges the component suction nozzles for each type. The nozzle storage cartridge has a nozzle removal part and a nozzle attachment part, both of which are located at predetermined positions facing the rotation locus of the suction head, and the nozzle removal part holds the component suction nozzle that has been removed from the suction head. A rotary rotary rotary rotary rotary rotary rotary rotary rotary rotary rotary rotary rotary machine, characterized in that a taking-in means is provided for assembling the component suction head into an array of the same type, and the nozzle mounting section is provided with a taking-out means for transferring the component suction head from the arrangement of component suction nozzles of a predetermined type to the nozzle mounting section. Head type chip placer.