JPH1075097A - Part-mounting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate such work as program setting and managing a sucking nozzle, for improved safety and productivity by discriminating the kind of sucking nozzle which is stored at each position of a nozzle stocker, and based on the discriminating result, taking the sucking nozzle out of the nozzle stocker. SOLUTION: A controlling device, prior to part-mounting operation, sequentially transports a CCD camera 23 onto storing parts 21a-21g, and image pickups the kinds information A-G of a sucking nozzle 16. Then, based on the imaging data and storing position data, it is discriminated which kinds of sucking nozzle 16 is stored in the storing parts 21a-21g. The controlling device, based on the discriminating result and mounting program data, drive-controls an XY robot, to transport multiple head parts, in the order stated in the mounting program data, on to a specified storing parts 21a-21g, for lowering and raising. Thereby, a nozzle main body 16a is pressed into a holder, and the sucking nozzle 16 of a specified kind is attached to the holder for taking out.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component mounting apparatus configured to suction and convey a mounting component by a suction nozzle.

[0002]

In a component mounting apparatus, a mounting component set in a parts feeder is picked up by a suction nozzle and taken out, and then the suction nozzle is conveyed onto a printed wiring board and lowered. Accordingly, there is a configuration in which a mounting component is pressed against a printed wiring board and mounted.

FIGS. 16 and 17 show a conventional structure of the above-mentioned component mounting apparatus. Here, a holder 2 is attached to the head section 1, and a suction nozzle 3 is inserted into the holder 2. The holder 2 has balls 2a, 2a mounted thereon, and the suction nozzle 3
Each of the balls 2a is removably mounted on the holder 2 as the ball 2a is fitted into the notch 3a of the suction nozzle 3 by the spring force of the compression coil spring 2b.

[0004] Incidentally, there are various types of mounting components 4 and their shapes are also various. Therefore, one type of suction nozzle 3 cannot suction and convey various types of mounting components 4. Therefore, as shown in FIG. 18, there is a type in which different types of suction nozzles 3 are stored in a plurality of storage portions 5a of the nozzle stocker 5.

In this configuration, when the type of the suction nozzle 3 stored in each storage section 5a is input for each printed wiring board, the head section 1 sets the predetermined storage section 5a based on the input data. After moving upward, the suction nozzle 3 of a predetermined type is pushed into the holder 2 as the head 1 descends, and the suction nozzle 3 is automatically taken out. Reference numeral 6 denotes a shutter that clamps the suction nozzle 3 and releases the clamp as it moves in the direction of arrow A and arrow A.

However, in the above-described conventional configuration, if a program is incorrectly set or the suction nozzle 3 is erroneously stored, the suction nozzle 3 is erroneously attached to the head unit 1 and a suction error of a mounting component occurs or a mounting error occurs. Since there is a possibility that the parts for use and the suction nozzle may be damaged, there is room for improvement in terms of safety. At the same time, it is necessary to accurately set the program and store the suction nozzles 3 for each printed wiring board.
Management was troublesome.

In particular, as the types of printed wiring boards increase, the types of suction nozzles also increase, so that setting of programs and management of the suction nozzles 3 become more troublesome. At the same time, the probability of erroneous setting of the program and erroneous storage of the suction nozzle 3 increases, so that safety is further reduced.

Therefore, regardless of the type of the printed wiring board, the type of the suction nozzles 3 housed in each storage section 5a is made constant, and, for example, different types of suction nozzles 3 are housed in the nozzle stocker 5 one by one. It is possible to put.

However, in the above configuration, unnecessary suction nozzles 3 are also stored in the nozzle stocker 5, so that the number of suction nozzles 3 stored increases. Therefore, the size of the nozzle stocker 5 is increased, and the cost of the apparatus is increased. This becomes more remarkable as the number of heads 1 and the types of mounting components 4 increase. Also, the head 1
However, since there is only one suction nozzle 3 even if there are a plurality of components, it is impossible to mount many components of the same type at a time. As a result, the productivity was reduced, so that it was generally difficult to implement.
In particular, this tendency increases as the number of multiple heads 1 increases.
Production efficiency is greatly reduced.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to eliminate the trouble of setting a program and the trouble of managing a suction nozzle, and further improve safety and productivity. Another object of the present invention is to provide a component mounting apparatus capable of reducing costs.

[0011]

According to a first aspect of the present invention, there is provided a component mounting apparatus including a nozzle stocker having a plurality of storage sections, and type data for specifying a type stored in each storage section of the nozzle stocker. Storage means for storing storage position data of the plurality of suction nozzles, imaging means for capturing the type data of each suction nozzle stored in the nozzle stocker, and storage position data for the storage means. Determining means for determining what kind of suction nozzle is stored at each position of the nozzle stocker based on image data of the image capturing means; and suctioning from the nozzle stocker based on the determination result of the determining means. It is characterized by having a head portion for taking out a nozzle.

According to the above means, when the type data of each of the suction nozzles stored in the nozzle stocker is imaged, “the position of each nozzle stocker is determined based on the storage position data of the storage means and the image data of the imaging means. Is determined, and the suction nozzle is taken out of the nozzle stocker based on the determination result.

Therefore, unlike the conventional case where "what kind of suction nozzle is stored in each position of the nozzle stocker" is manually input, there is no data input error. Moreover, even if the suction nozzles are randomly stored in the nozzle stocker, the suction nozzles can be accurately taken out based on the actual storage state (that is, the imaging result of the product data). For this reason, erroneous storage of the suction nozzles is also eliminated, so that there is generally no risk that the suction nozzles are erroneously mounted on the head portion and that mounting components are erroneously suctioned or the mounting components or the suction nozzles are damaged. Therefore, the safety is improved, and the trouble of setting the program and the trouble of managing the suction nozzle are eliminated.

Further, unlike the case where the type of suction nozzles stored in each storage unit is fixed and different types of suction nozzles are stored one by one in the nozzle stocker, unnecessary suction nozzles are stored in the nozzle stocker. Since it is not necessary to store the nozzle stocker, an increase in cost due to the enlargement of the nozzle stocker is prevented. In addition, when there are a plurality of head units, the same kind of suction nozzles can be mounted on the plurality of head units, and the same kind of mounting parts can be mounted on a large number of units at one time, so that productivity is improved.

According to a second aspect of the present invention, the component mounting apparatus is characterized in that the suction nozzle is housed in the housing in a detented state. According to the above-described means, unlike the related art in which the suction nozzle is rotatably stored in the storage unit, the type data of the suction nozzle can be easily imaged and image-processed.

According to a third aspect of the present invention, there is provided a component mounting apparatus which includes a notifying unit for notifying that a suction nozzle required for mounting operation is not housed in a nozzle stocker and that no suction nozzle is housed. It has features in the places where it is provided. According to the above means, when the suction nozzle required for the mounting operation is not stored in the nozzle stocker, the non-storage of the suction nozzle is notified. For this reason, since the suction nozzle can be stored in the nozzle stocker based on this notification, the mounting operation is performed smoothly.

According to a fourth aspect of the present invention, there is provided a component mounting apparatus characterized in that identification data for specifying a suction nozzle is written on the suction nozzle. According to the above means, the same kind of suction nozzles can be distinguished without being confused on the basis of the imaging results of the kind data and the identification data, so that efficient operation is performed. At the same time, it is also possible to obtain information that the spare suction nozzle is stored in the nozzle stocker.

According to a fifth aspect of the present invention, there is provided a component mounting apparatus comprising: a thermal paper stuck to a suction nozzle; and a heat source for notifying that the suction nozzle has been consumed by heating the thermal paper to change its color. It has features. According to the above means, when the suction nozzle is exhausted, the heat source heats the thermal paper to change its color. Therefore, the consumption of the suction nozzle can be detected based on the image data of the thermal paper. Further, since the consumption of the suction nozzle is notified by the thermal paper, it is possible to prevent the information from being lost due to the cutoff of the power supply.

According to a sixth aspect of the present invention, the component mounting apparatus is characterized in that the start of use of the suction nozzle or the use limit time of the suction nozzle is described in the suction nozzle. According to the above means, the cumulative use time of the suction nozzle is measured based on the imaging data at the start of use and the use limit, and the life of the suction nozzle can be determined based on comparing the cumulative use time with the upper limit value. .

According to a seventh aspect of the present invention, in the component mounting apparatus, the plurality of thermal papers attached to each suction nozzle and the plurality of thermal papers are sequentially heated and discolored each time the number of times of operation of the suction nozzle reaches a predetermined value. Accordingly, a heat source for notifying the number of times of operation of the suction nozzle is provided. According to the above-described means, each time the suction nozzle reaches the predetermined number of times of operation, the heat source sequentially heats the plurality of thermal papers to change the color. For this reason, the total number of times of operation of the suction nozzle can be detected based on the imaging data of the thermal paper. In addition, since the number of times of operation is notified by a plurality of thermal papers, it is possible to prevent information from being lost due to the cutoff of the power supply.

[0021]

FIG. 1 shows a first embodiment of the present invention.
This will be described with reference to FIG. First, in FIG.
The mounting head 12 is attached to the arm of the XY robot 11, and the mounting head 12 has four heads 1
2a is mounted. Each of these heads 12
a lifting mechanism (not shown) and a rotating mechanism (not shown) are interposed between the mounting head 12 and the mounting head 12, and these lifting mechanism and rotating mechanism vertically move the four head portions 12a independently. Move and rotate.

As shown in FIG. 8, a cylindrical holder 13 is attached to each head portion 12a, and each of these holders 13 has two spring pins 14a as shown in FIG. They are mounted facing each other. The rollers 14, 1 are attached to the spring pins 14a, 14a.
4, each roller 14 is a spring pin 14
It is slidable along a. As shown in FIG. 8, leaf springs 15, 15 are attached to each holder 13, and each leaf spring 15 urges the roller 14 toward the roller 14 on the other side.

As shown in FIG. 3, the suction nozzle 16 is formed by connecting a nozzle body 16a and a nozzle tip 16b by a rectangular nozzle plate 16c. , Notches 16d, 16
d is formed. When the nozzle body 16a is pushed into each holder 13, the roller 14 fits into the notch 16d by the spring force of each leaf spring 15, and each holder 1
3, the suction nozzle 16 is mounted in a detented state.

The suction nozzle 16 has a plurality of types. The plurality of types of suction nozzles 16 are used for the nozzle chip 1.
6b have different shapes (inner diameter, outer diameter, etc.), and
The nozzle body 16a and the nozzle plate 16c have the same shape, and a plurality of types of suction nozzles 16 are selectively mounted on the four head portions 12a as described later.

As shown in FIG. 6, a plurality of parts feeders 17 are mounted on a base (not shown), and electronic components (not shown) of different types are mounted on the plurality of parts feeders 17. Is set. Each electronic component corresponds to a mounting component.

The control device 18 corresponds to a determining means, and is mainly composed of a microcomputer.
The memory 18 of the control device 18 corresponding to the storage means
The controller 18 controls the driving of the XY robot 11 on the basis of the mounting program data.
a is sequentially conveyed to a predetermined suction position, and the elevating mechanism is operated. As a result, the four suction nozzles 16 are moved up and down to suck and take out the electronic components from the predetermined parts feeder 17.

A printed wiring board 19 is set on the base, and when the electronic device is taken out from the parts feeder 17, the control device 18 drives and controls the XY robot 11 based on the mounting program data. Is sequentially transported to a predetermined mounting position, and the lifting mechanism is operated. Thus, the four suction nozzles 16 are moved up and down, and the electronic component is pressed against the printed wiring board 19 and mounted.

A CCD camera 20 is mounted on the base, and the controller 18 moves the four suction nozzles 16 within the field of view of the CCD camera 20 when transporting the electronic components to the mounting position. 20 is driven. The CCD camera 20 is provided with a light source 20a. The light source 20a projects light toward an electronic component, and the CCD camera 20 captures reflected light from the electronic component.

As shown in FIG. 4, a reflection plate 16e is attached to the suction nozzle 16, and the CCD camera 2
0 captures the reflected light from the reflection plate 16e as a background image of the electronic component.

When the control device 18 captures an image of the electronic component,
The image pickup data is subjected to image processing, the suction posture of the electronic component is detected, and the detected suction posture is compared with the normal suction posture to calculate a shift amount of the suction posture. Then, the transport amount of the suction nozzle 16 by the XY robot 11 is corrected based on the shift amount, or the rotation amount of the suction nozzle 16 is adjusted based on the shift amount (specifically, the rotation mechanism is adjusted based on the shift amount). Drive control), the mounting position of the electronic component is corrected.

As shown in FIG. 1, robot hand mechanisms 22, 22 are provided at both ends of the nozzle stocker 21. Each of these robot hand mechanisms 22 uses air as a driving source, and shutters 22a, 22a are connected to each robot hand mechanism 22.

The nozzle stocker 21 has rectangular storage portions 21a to 21g. One of the shutters 22a is provided with position information "1" to "7" for specifying the storage units 21a to 21g, and the various suction nozzles 16 are used as a guide for the position information "1" to "7". 2, the nozzle plate 16c is supported by the periphery of the storage portions 21a to 21g, and the suction nozzle 16 is stopped in the storage portions 21a to 21g as shown in FIG. Is stored in.

The control device 18 includes the robot hand mechanism 2
In accordance with the drive control of the shutters 22 and 22, each shutter 22a
Is moved in the directions of arrow A and anti-arrow A. As a result, the nozzle plate 16c of the suction nozzle 16 is clamped or the clamp of the nozzle plate 16c is released.

As shown in FIG. 6, the mounting head 12 has
A CCD camera 23 corresponding to an imaging unit is attached. The storage position data is recorded in the mounting program data, and the control device 18 controls the driving of the XY robot 11 based on the storage position data.
As shown in FIG. 7, the CCD camera 23 is
It is sequentially conveyed onto 21 g.

The various suction nozzles 16 include a nozzle plate 16.
Type data “A” to “G” are written on the upper surface of c (see FIG. 3). These kind data “A” to “G”
Is for specifying the type of the suction nozzle 16,
The control device 18 stores the CCD camera 23 in the storage units 21a to 21
The CCD camera 23 is driven each time it is transported 1 g above, and the type data “A” to “G” are picked up and processed. Then, based on the storage position data and the imaging data “A” to “G”, it is determined which kind of suction nozzle 16 is stored in the storage units 21a to 21g.

In the mounting program data, nozzle data indicating "which suction nozzles 16 are to be sequentially mounted on the four heads 12a" is recorded.
When the type of the suction nozzle 16 stored in the nozzle stocker 21 is determined, the suction nozzle 16 is taken out from the nozzle stocker 21 based on the determination result and the nozzle data. At the same time, "the type A suction nozzle 16 is not enough for this application", and "the type B suction nozzle 16 is no.
Is set to the position of 2, but not used in the present application ”, and the like, and the result of this determination is displayed on the display 24 corresponding to the notification means to prompt the addition of the type A suction nozzle 16.

Next, the operation of the above configuration will be described. Prior to the component mounting operation, the control device 18 sequentially conveys the CCD camera 23 onto the storage units 21a to 21g, and captures the type information “A” to “G” of the suction nozzle 16. And
Based on the image data and the storage position data, it is determined which type of suction nozzle 16 is stored in the storage units 21a to 21g.

When it is detected that the suction nozzle 16 is not stored, for example, "the number of the suction nozzles 16 of the type A is insufficient", the controller 18 displays this fact on the display 24, and Encourage replenishment. Then, the above-described series of operations are repeated until it is confirmed that the suction nozzle 16 has not been stored yet.

The control device 18 operates as follows: "The storage units 21a to 21g
Is determined, the XY robot 11 is driven and controlled based on the determination result and the mounting program data, and the plurality of heads 12a are described in the mounting program data. In this order, the sheets are conveyed onto predetermined storage sections 21a to 21g and lowered and raised. Thus, the nozzle body 16a is pushed into the holder 13, and the suction nozzle 16 of a predetermined type is mounted on the holder 13 and taken out.

When mounting the suction nozzle 16 on the holder 13, the controller 18 clamps the nozzle plate 16c of the suction nozzle 16 by the shutters 22a, 22a of the robot hand mechanisms 22, 22, respectively. Further, when taking out the suction nozzle 16 from the storage sections 21a to 21g, the clamp of the nozzle plate 16c by the shutters 22a, 22a is released.

The controller 18 controls the suction nozzle 1 of a predetermined type.
After taking out 6, after performing the above-described series of component mounting operations, the drive control of the XY robot 11 is performed based on the above-described determination result and the mounting program data. The sheets are conveyed onto predetermined storage units 21a to 21g in the order described. Then, as the holder 13 is lowered, the suction nozzle 16 is inserted into the predetermined storage sections 21a to 21g.

Here, the control device 18 controls the suction nozzle 16
Each time is inserted into the storage sections 21a to 21g, the nozzle plate 16c of the suction nozzle 16 is clamped by the shutters 22a, 22a of the robot hand mechanisms 22, 22, and the predetermined head section 12a is raised. As a result, the engagement between each roller 14 and the notch 16 d is released, and the suction nozzle 16 is removed from the holder 13.

According to the above-described embodiment, the type data "A" to "G" of the suction nozzle 16 are imaged, and the "nozzle stocker 2"
No. 1 what kind of suction nozzle 16 is stored in each position ", and the suction nozzle 16 is taken out from the nozzle stocker 21 based on the result of this determination.

Therefore, unlike the conventional case where "what kind of suction nozzle 16 is stored in each position of the nozzle stocker 21" is manually input, data input error is eliminated. Moreover, even if the suction nozzles 16 are randomly stored in the nozzle stocker 21, the suction nozzles 16 are accurately taken out based on the actual storage state (ie, the imaging result of the product data). For this reason, since the erroneous storage of the suction nozzle 16 is also eliminated, there is a possibility that the suction nozzle 16 is erroneously attached to the head portion 12a, and that the electronic component or the suction nozzle 16 is damaged. Disappears. For this reason, improvement in safety and shortening of the setup change time are realized, and the trouble of setting the program and the trouble of managing the suction nozzle are eliminated.

Further, unlike the case where the type of the suction nozzles 16 stored in each of the storage sections 21a to 21g is fixed and different types of suction nozzles 16 are stored one by one in the nozzle stocker, unnecessary suction nozzles 16 are stored. Nozzle 16 to nozzle stocker 2
Since it is not necessary to store the nozzle stocker in the nozzle stocker 1, an increase in cost due to enlargement of the nozzle stocker 21 is prevented. In addition, since the same kind of suction nozzle is mounted on the plurality of head parts 12a and the same kind of electronic components can be mounted on many pieces at a time,
Productivity is improved.

The nozzle plate 16c and the storage portion 21a
To 21 g in a rectangular shape, the suction nozzle 1
6 was stored in the nozzle stocker 21 in a non-rotating state.
For this reason, unlike the related art in which the suction nozzle 16 is rotatably stored in the nozzle stocker 21, the suction nozzle 16
Can be easily imaged and image-processed.

When the suction nozzles 16 necessary for the mounting operation are not stored in the nozzle stocker 21, the display 24 indicates that the suction nozzles 16 are not stored. For this reason, since the suction nozzle 16 can be stored in the nozzle stocker 21 based on this display, the mounting operation is performed smoothly.

Next, a second embodiment of the present invention will be described with reference to FIG. The same members as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted. Hereinafter, only different members will be described.

A predetermined storage portion 21a of the nozzle stocker 21
, 21 A, five suction nozzles 16 of type A are set, and the nozzle plate 16 c of these suction nozzles 16 has identification data “1” to “1” in addition to the product data “A”.
"5" is indicated (only "1" is shown). In addition, in the remaining storage parts 21a to 21g of the nozzle stocker 21,
The suction nozzles 16 other than the type A are accommodated.

According to the above embodiment, when a large number of the same electronic components are mounted on the printed wiring board 19, the control device 18 moves the CCD camera 23 to the storage sections 21a to 21g.
The pieces are sequentially transported upward, and the type data “A” to “G” and the recognition data “1” to “5” are simultaneously imaged.

The control device 18 stores the type data “A” to
When “G” and the recognition data “1” to “5” are imaged, the “storage unit 21a” is
２１21 g is stored in which kind of suction nozzle 16 is stored ”, and the discrimination result is compared with the nozzle data in the mounting program data, so that the type data“ A ”and the identification data“ 5 ”are obtained. It is determined that the suction nozzles 16 are spare (four head nozzles 16 of the same type are housed while four head units 12a are stored),
The result of this determination is displayed on the display 24.

For this reason, based on the imaging results of the kind data “A” to “G” and the identification data “1” to “5”, the same kind of suction nozzles 16 can be distinguished without being confused. Is made. At the same time, information indicating that the spare suction nozzle 16 is stored in the nozzle stocker 21 can be obtained.

Next, a third embodiment of the present invention will be described with reference to FIGS. The same members as those in the second embodiment are denoted by the same reference numerals, and description thereof will be omitted. Hereinafter, only different members will be described.

A pressure sensor (not shown) is mounted in a vacuum pipe (not shown) for evacuating each head 12a, and the control unit 18 places each head 12a on the parts feeder 17. Then, when the respective heads 12a are lowered, an output signal from the pressure sensor is detected.

Here, if the output signal from the pressure sensor is near a predetermined level from the start to the end of the descent, it is determined that the suction nozzle 16 is clogged. Further, if the output signal from the pressure sensor is maintained at a predetermined level after the descent, the suction nozzle 16
It is determined that the tip of the nozzle tip 16b wears and air leakage occurs.

The controller 18 has a counter for each of the suction nozzles 16. When a suction failure is detected based on an output signal from the pressure sensor, the control device 18 specifies the suction nozzles 16 in the following order. Increment the corresponding counter. (1) Identify the head unit 12a in which the suction failure has occurred. (2) It is detected in what order of the mounting program the suction failure has occurred.

(3) It is detected which suction nozzle 16 is attached to the head section 12a in (1) in the step (2). (4) On the basis of the mounting program data, the storage sections 21a to 21g from which the suction nozzle 16 of (3) is taken out are specified. (5) Which storage nozzles 21a to 21g and which suction nozzles 16
The suction nozzle 16 is specified on the basis of the determination result of whether or not is stored and the specification result of (4).

As shown in FIG. 11, a thermal paper 25 is affixed to each suction nozzle 16 so as to be located on the nozzle plate 16c. As shown in FIG. 12, a spot heater 26 is attached to the mounting head 12 on the thermal paper 25 of each suction nozzle 16 (only one spot heater is shown). Each of the spot heaters 26 corresponds to a heat source. When the value of the counter reaches a predetermined upper limit, the controller 18 causes the predetermined spot heater 26 to generate heat and causes a predetermined number of suction failures. Suction nozzle 16
Is heated to change the color of the thermal paper 25 from white to black.

When the control device 18 changes the color of the heat-sensitive paper 25 of the predetermined suction nozzle 16 from white to black, the control device 18 conveys the suction nozzle 16 onto the nozzle stocker 21 and the storage section 21a.
Store within ~ 21g.

Here, when there is a spare suction nozzle 16, the suction nozzle 16 is taken out of the nozzle stocker 21 and the operation is continued, so that the operation rate is improved. On the other hand, the user visually recognizes the suction nozzle 16 stored in the nozzle stocker 21 and collects the heat-sensitive paper 26 whose color has changed to black. Therefore, the exhausted suction nozzle 16 is reused, and the occurrence of poor suction is prevented.

According to the above embodiment, the controller 18 recognizes the identification data “1” to “5” and the thermal paper 25 when recognizing the type data “A” to “G” of the suction nozzle 16.
Recognize at the same time. Here, when the thermal paper 25 is white, the head unit 12a is lowered based on the determination result of the suction nozzle 16, the suction nozzle 16 is taken out from the nozzle stocker 21, and when the thermal paper 25 is black, , The suction nozzle 16 is not taken out.

For this reason, the exhausted suction nozzle 16 is reused, and the occurrence of poor suction is prevented. In this case, the thermal paper 26 is attached to the suction nozzle 16 and the thermal paper 26
Since the wear of the suction nozzle 16 is notified by changing the color of, there is also an advantage that it is possible to prevent the information from being lost due to the cutoff of the power supply.

When the thermal paper 25 is black, the controller 18 activates the spare suction nozzle 16 based on the image data of the type data "A" to "G" and the identification data "1" to "5". If it is detected that there is a spare suction nozzle 16, the spare suction nozzle 16 is taken out. If there is no spare suction nozzle 16, a message to replace the worn suction nozzle 16 is displayed on the display 24. Then, after repeatedly recognizing the kind data "A" to "G", the identification data "1" to "N", and the thermal paper 25, when it is detected that the suction nozzle 16 has been replaced, the suction nozzle 16 is reset. Take out and perform automatic operation. Therefore, the operation rate is improved.

Next, a fourth embodiment of the present invention will be described with reference to FIGS. The same members as those in the second embodiment are denoted by the same reference numerals, and description thereof will be omitted. Hereinafter, only different members will be described. First, FIG.
, Each suction nozzle 16 has "199
0.1.1. "

According to the above-described embodiment, as shown in step S1 of FIG. 14, the controller 18 sets the type data "A" to "G" of the suction nozzle 16, the identification data "1" to "5",
At the start of use, "1990.1.1" is simultaneously recognized, and the process proceeds from step S1 to S2. Then, the current date is read from the calendar function of the apparatus, and steps S2 to S
After shifting to 3, the image data of the CCD camera 23 is compared with the read data of the calendar function, and it is determined whether or not they match.

The controller 18 has a timer for each of the suction nozzles 16. When the image data of the CCD camera 23 and the read data of the calendar function match, the control unit 18 shifts from step S3 to S4. , The suction nozzle 16
Is reset to "0". Then, the process proceeds from step S3 to S4, and the usage time of the day is counted periodically (for example, every hour).

When the control device 18 counts the use time, the control device 18 sets the timer value to a preset upper limit value (for example, 20,000).
Time). Here, if the timer value exceeds the upper limit value, it is considered that the life has expired, the suction nozzle 16 is discharged to the nozzle stocker 16, and if there is a spare suction nozzle 16, the suction nozzle 16 is moved to the nozzle stocker 21. And continue operation. Therefore, the operation rate is improved.

When the timer value exceeds the upper limit value, the controller 18 sets the suction nozzle 16 to the nozzle stocker 1.
6 and display it on the display 24. On the other hand, the user visually recognizes the display on the display 24 and replaces the suction nozzle 16 whose life has expired. For this reason, the suction nozzle 16 which has reached the end of its life is reused, and the occurrence of poor suction is prevented.

It is assumed that the user discards the old suction nozzle 16 of “A1” and sets a new suction nozzle 16 of “A1” in the nozzle stocker 21.
In this case, since the apparatus cannot detect that the suction nozzle 16 has been replaced, the apparatus cannot correctly measure the cumulative use time of the suction nozzle 16 "A1". On the other hand, if another data "A6" is written in the suction nozzle 16, new data will increase each time the suction nozzle 16 reaches the end of its life.

On the other hand, in this embodiment, the suction nozzles 16 are distinguished from each other by indicating the start of use. For this reason, when the old suction nozzle 16 of “A1” is discarded and the new suction nozzle 16 of “A1” is set in the nozzle stocker 21, the replacement of the suction nozzle 16 is performed based on the new imaging data at the start of use. Can be detected, the cumulative use time of the suction nozzle 16 of “A1” is correctly measured. In addition, there is no fear that new data is sequentially increased every time the suction nozzle 16 reaches the end of its life.

In the fourth embodiment, the identification data "1" to "N" are provided on the nozzle plate 16c of each suction nozzle 16.
However, the present invention is not limited to this. For example, the identification data “1” to “N” may be omitted.

Further, in the fourth embodiment, in recognizing the type data "A" to "G", the identification data "1" to "5", and the use date "1990.1.1", With reference to the cumulative use time of the nozzles 16, if the cumulative use time exceeds the upper limit value, take out the spare suction nozzle 16. If there is no spare suction nozzle 16, replace the suction nozzle 16. Display message 24
May be displayed. In this configuration, the suction nozzle 16 that has reached the end of its life is prevented from being reused, so that poor suction does not occur. In addition, since the automatic operation is continued, the operation rate is improved.

In the fourth embodiment, the start of use is described in the suction nozzle 16, but the present invention is not limited to this. For example, the limit of use may be described. In this case, when reading the current date from the calendar function, the control device 18 first adds a predetermined useful date to the read date, and compares the addition result with the usage limit time. If they match, the timer is reset to "0" and the accumulated use time is measured.

Next, a fifth embodiment of the present invention will be described with reference to FIG. The same members as those in the third embodiment are denoted by the same reference numerals, and description thereof will be omitted. Hereinafter, only different members will be described. The first thermal paper 27a to the fifth thermal paper 27e are affixed to each of the suction nozzles 16 and located on the nozzle plate 16c.

The control device 18 has a counter for each suction nozzle 16, and each time the suction nozzle 16 is lowered to mount an electronic component on the printed circuit board 19, the counter corresponding to the suction nozzle 16 is added. The count value is set to a first upper limit (10000 times) and a second upper limit (2000
0), the third upper limit (30000 times), the fourth upper limit (40000 times), and the fifth upper limit (50000 times).

The mounting head 12 is provided with five spot heaters (not shown) corresponding to heat sources, and the controller 18 controls the count value every time the count value reaches the first upper limit value to the fifth upper limit value. A predetermined spot heater is caused to generate heat.
Are heated to change the color from white to black.

According to the above embodiment, the thermal papers 27a-27
e, the number of times of operation of the suction nozzle 16 is detected based on the imaging data to prevent the exhausted suction nozzle 16 from being taken out of the nozzle stocker 21 as in the third embodiment. Since the nozzles 16 can be discharged and replaced, the exhausted suction nozzles 16 are reused to prevent defective suction, and the operation rate is improved. Moreover, it is possible to prevent the information from being lost due to the power cutoff.

In the fifth embodiment, the identification data "1" to "N" are described together with the suction nozzles 16. However, the present invention is not limited to this.
When there is only one number 6, the identification data "1" to "N" need not be described together. Further, in the first to fifth embodiments, the display 24 is used as the notification means. However, the present invention is not limited to this. For example, a speaker or the like may be used.

In the second to fifth embodiments,
Although the numerals “1” to “N” are used as the identification data, the present invention is not limited to these numbers. For example, characters, symbols, colors,
The presence or absence of reflection, a bar code, or the like may be used. In the first to fifth embodiments, alphabets "A" to "G" are used as type data. However, the present invention is not limited to this. For example, letters, numbers, symbols, colors, reflection Presence / absence, barcode, etc. may be used.

[0080]

As is clear from the above description, the component mounting apparatus of the present invention has the following effects. According to the means of claim 1, it is determined based on the storage position data of the storage means and the imaging data of the imaging means "what kind of suction nozzle is stored at each position of the nozzle stocker", Since the suction nozzle is taken out of the nozzle stocker based on this determination result, there is no data input error. Moreover, even if the suction nozzles are randomly stored in the nozzle stocker, the suction nozzles can be accurately taken out based on the imaging result of the type data. For this reason, erroneous storage of the suction nozzles is also eliminated, so that there is generally no risk that the suction nozzles are erroneously mounted on the head portion and that mounting components are erroneously suctioned or the mounting components or the suction nozzles are damaged. For this reason,
The safety is improved and the setup change time is shortened, and the trouble of setting the program and the trouble of managing the suction nozzle are eliminated. Further, since it is not necessary to store unnecessary suction nozzles in the nozzle stocker, it is possible to prevent a cost increase due to an increase in size of the nozzle stocker. In addition, since the same type of suction nozzle is mounted on a plurality of head units, and mounting components of the same type can be mounted on many pieces at a time, productivity is improved.

According to the second aspect of the present invention, since the suction nozzle is stored in the storage section in a non-rotating state, it is possible to easily capture the type data and perform image processing. Claim 3
According to the means described above, when the suction nozzles necessary for the mounting operation are not stored in the nozzle stocker, it is notified that the suction nozzles are not stored. For this reason, since the suction nozzle can be stored in the nozzle stocker based on this notification, the mounting operation is performed smoothly.

According to the fourth aspect of the present invention, the identification data for specifying the suction nozzle is described in the suction nozzle. For this reason, the same kind of suction nozzles can be distinguished without confusing them based on the imaging results of the type data and the identification data, so that efficient operation is performed. At the same time, it is also possible to obtain information that the spare suction nozzle is stored in the nozzle stocker.

According to the fifth aspect of the present invention, when the suction nozzle is exhausted, the thermal paper is heated to change its color.
The consumption of the suction nozzle can be detected based on the image data of the thermal paper. In addition, since the consumption of the suction nozzle is notified by the thermal paper, the information is prevented from being lost due to the cutoff of the power supply.

According to the means of claim 6, since the start of use or the limit of use is described in the suction nozzle, the cumulative use time of the suction nozzle is measured based on the imaging data at the start of use or at the limit of use. The life of the suction nozzle can be determined based on comparing the accumulated use time with the upper limit.

According to the means of the present invention, a plurality of heat-sensitive papers are attached to the suction nozzles, and the heat source is heated every time the number of times of operation of the suction nozzles reaches a predetermined value, so that the plurality of heat-sensitive papers are sequentially changed in color. . Therefore, the number of times of suction operation can be detected based on the image data of a plurality of thermal papers. In addition, since the number of times of operation is notified by a plurality of thermal papers, it is possible to prevent the information from being lost due to the cutoff of the power supply.

[Brief description of the drawings]

FIG. 1 is a diagram showing a first embodiment of the present invention (a perspective view showing a nozzle stocker).

FIG. 2 is a sectional view showing a nozzle stocker.

FIG. 3 is a perspective view showing a suction nozzle.

FIG. 4 is a side view showing a suction nozzle.

FIG. 5 is a vertical sectional side view showing a suction nozzle.

FIG. 6 is a diagram schematically showing an overall configuration.

FIG. 7 is a perspective view showing a recognition state of product data;

FIG. 8 is a longitudinal sectional side view showing a mounting state of a suction nozzle.

FIG. 9 is a cross-sectional view showing a mounting state of the suction nozzle.

FIG. 10 is a view corresponding to FIG. 3, showing a second embodiment of the present invention.

FIG. 11 is a view corresponding to FIG. 3, showing a third embodiment of the present invention;

FIG. 12 is a diagram corresponding to FIG. 8;

FIG. 13 is a view corresponding to FIG. 3, showing a fourth embodiment of the present invention.

FIG. 14 is a flowchart showing control contents of the control device.

FIG. 15 is a view corresponding to FIG. 3, showing a fifth embodiment of the present invention.

FIG. 16 is a diagram corresponding to FIG. 3 showing a conventional example.

FIG. 17 is a diagram corresponding to FIG. 8;

FIG. 18 is a diagram corresponding to FIG. 1;

[Explanation of symbols]

“A” to “G” are type data, “1” is identification data, 1
2a is a head unit, 16 is a suction nozzle, 18 is a control unit (determination unit), 18a is a memory (storage unit), 21 is a nozzle stocker, 21a to 21g are storage units, and 23 is a CCD.
A camera (imaging means), 25 indicates thermal paper, 26 indicates a spot heater (heat source), and 27a to 27e indicate thermal paper.

Claims (7)

[Claims] 1. A nozzle stocker having a plurality of storage portions, a suction nozzle stored in each storage portion of the nozzle stocker and having type data for identifying a type, and a storage position of the plurality of suction nozzles A storage unit in which data is stored; an imaging unit that captures type data of each suction nozzle stored in the nozzle stocker; and a storage position data in the storage unit and the nozzle based on the imaging data of the imaging unit. A determination unit configured to determine what kind of suction nozzle is stored at each position of the stocker; and a head unit that takes out the suction nozzle from the nozzle stocker based on a determination result of the determination unit. Characteristic component mounting equipment. 2. The component mounting apparatus according to claim 1, wherein the suction nozzle is accommodated in the accommodating portion in a detented state. 3. A notifying means for notifying that a suction nozzle required for the mounting operation is not housed in the nozzle stocker, and that the necessary suction nozzle is not housed, is provided. Item 1. The component mounting apparatus according to Item 1. 4. The component mounting apparatus according to claim 1, wherein identification data for specifying the suction nozzle is written on the suction nozzle. 5. The apparatus according to claim 1, further comprising: a heat-sensitive paper attached to the suction nozzle; and a heat source for notifying that the suction nozzle has been consumed by heating the heat-sensitive paper to change its color. Component mounting equipment. 6. The component mounting apparatus according to claim 1, wherein a start time of use of the suction nozzle or a use limit time of the suction nozzle is indicated on the suction nozzle. 7. The method according to claim 7, further comprising sequentially heating the plurality of thermal papers attached to the suction nozzles and discoloring the plurality of thermal papers each time the number of operation times of the suction nozzles reaches a predetermined value. The component mounting apparatus according to claim 1, further comprising a heat source for notifying.