JP3402803B2 - Component recognition device for mounting machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting machine for adsorbing a small piece-like component such as an IC by a head unit having a plurality of nozzle members and mounting it at a predetermined position on a printed circuit board. The present invention relates to a component recognition device of a mounting machine that recognizes a component adsorbed on a member.

[0002]

2. Description of the Related Art Conventionally, a head unit having a nozzle member for mounting components sucks a component such as an IC from a component supply unit, transfers the component onto a printed circuit board positioned at a predetermined position on the printed circuit board. A mounting machine designed to be mounted is generally known. Recently, there has been proposed a mounting machine in which a plurality of nozzle members are arranged in a head unit so as to improve mounting efficiency so that a plurality of components can be transferred at a time.

[0003] In such a mounting machine, there is a certain degree of variation in the position of the component when the component is sucked by the nozzle member, and it is required to correct the mounting position in accordance with the shift of the component suction position. For this reason, the picked-up component is recognized to detect a shift in the suction position with respect to the nozzle member, or to detect an abnormality of the component, for example, if the component has a lead, breakage of the lead.

As a device for performing such component recognition, for example, an area sensor camera is installed on a base of a mounting machine,
There has been proposed a mounting machine that adopts a method of moving a head unit after component suction onto the area sensor camera and capturing a component image.

[0005]

As described above, in an apparatus for recognizing a component using an area sensor camera, the head unit after the component is picked up is mounted on the area sensor camera regardless of the type of component in relation to lighting or the like. Stop for a certain period of time,
It is required to capture part images using strobe lighting during movement, and if the recognition of parts adsorbed by each nozzle member of a head unit equipped with multiple nozzle members is performed continuously while moving, a fixed time It is necessary to capture a component image every time. For this reason, it takes time to capture the same part image both when continuously recognizing relatively simple-shaped components and when continuously recognizing complicated-shaped components.

However, component recognition can be performed more easily and at higher speed for a component having a simple shape. For example, in the case of a simple rectangular chip component, the speed of capturing component images is increased.
It is desirable to be able to adjust the capture speed of the component image according to the type of component from the viewpoint of increasing the mounting efficiency. In particular, in an apparatus equipped with a plurality of nozzle members in the head unit,
Since multiple types of components may be picked up at once, if component recognition can be performed continuously while appropriately adjusting the component image capture speed for each component, mounting efficiency in such an apparatus can be improved. Is advantageously possible.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and provides a component recognition device for a mounting machine capable of improving mounting efficiency by increasing the degree of freedom in adjusting the speed of capturing component images. It is intended to be.

[0008]

According to a first aspect of the present invention, there is provided a component recognition apparatus for a mounting machine, comprising: a plurality of component suction nozzle members arranged in parallel, and a head unit movable between a component supply side and a component mounting side. In a component recognition device of a mounting machine equipped with a line sensor, a line sensor disposed in a movement path of the head unit, and the head unit and the line sensor in line Driving means for moving the sensor relative to the sensor ;
Based on the detection of the movement position of the head unit with respect to
Each part adsorbed by multiple nozzle members of the head unit
For each product, the image of one part can be captured by the line sensor.
A part that determines that the process has been completed and outputs a one-component end signal
Product end signal generating means and a head for the line sensor.
Nozzle members taken in during relative movement of the nozzle unit
And a component recognizing means for recognizing each of the components based on the image of the suctioned component by the component recognizing device.
One relative movement of the head unit to the in-sensor
While capturing part images that are adsorbed by each nozzle member during operation
In response to the signal from the one-part end signal generation means,
During image capture of the next part after image capture is completed
Performs component recognition processing on the component image captured earlier
It has a function .

According to a second aspect of the present invention, there is provided a component recognition apparatus for a mounting machine.
In the component recognition device according to claim 1, wherein said component recognizing hand
The stage is one time of the head unit for the line sensor.
That are adsorbed by each nozzle member during the relative movement of
Part recognition for each part image after capturing the part images
A first processing mode for performing the processing, and
Nozzle unit during a single relative movement of the head unit.
One part completion signal is captured while capturing part images
Capture of an image of one part is completed in response to a signal from the signal generator
Captured first during image capture of the next part later
A second processing mode for performing a component recognition process on the component image;
Can be selectively executed, and the nozzle member
All the suction parts are simple shape parts with easy image recognition
Performs the second processing mode, otherwise the first processing mode
It is configured to execute a processing mode .

According to a third aspect of the present invention, there is provided a component recognition apparatus for a mounting machine,
In the component recognizing device according to claim 1 or 2, wherein the La
The moving speed of the head unit with respect to the
A control means for controlling the driving means so as to be changed according to the type;
A step, wherein the control means is provided by the nozzle member.
If all of the suction parts are simple shape parts with easy image recognition
Is smaller than the other cases.
Driving means for increasing the relative movement speed of the storage unit
Is to be controlled .

[0011]

[0012]

SUMMARY OF] According to the invention of the first aspect, by the head unit after the component suction are relatively moved on the line sensor, for all component sucked to the head unit during this movement period the part image captured Then, each component is recognized. Then, the capture of the image of one part is completed.
After the end of image capture of the next part
Has a function to perform component recognition processing on
In this way, component recognition can be performed within one component image capture time.
Parts that end the process for
When mounting only shaped parts, almost
All parts can be recognized in just
This increases the component recognition efficiency.

According to the second aspect of the present invention, the nozzle
Simple shape parts where all the suction parts by members are easy to recognize images
In the case of, the second processing mode is executed,
Recognition of all parts using only part image capture time
Becomes possible. Otherwise, the first processing mode
Is executed, the nozzle is sucked by each nozzle member.
4. The method according to claim 3, wherein images of all the parts are taken.
According to the described invention, the head unit is moved to the component mounting side.
Processing for component recognition is performed using the
You.

According to the third aspect of the present invention, the nozzle
Simple shape parts where all the suction parts by members are easy to recognize images
In the case of
The relative movement speed of the head unit
Thus, component recognition is performed efficiently .

[0015]

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of a component recognition apparatus according to the present invention will be described with reference to the drawings.

FIGS. 1 and 2 show the structure of a mounting machine on which a component recognition device according to the present invention is mounted. As shown in FIG. 1, a conveyor 2 for transporting a printed board is arranged on a base 1 of a mounting machine, and a printed board 3 is transported on the conveyor 2 and stopped at a predetermined mounting work position. It has become. A component supply unit 4 is arranged on the side of the conveyor 2. The component supply unit 4 includes a component supply feeder, for example, a multi-row tape feeder 4.
a.

Above the base 1, a head unit 5 for mounting components is provided. The head unit 5 is movable across the component supply unit 4 and the component mounting unit where the printed circuit board 3 is located.
It can move in the axial direction (the direction of the conveyor 2) and the Y-axis direction (the direction orthogonal to the X-axis on a horizontal plane).

That is, a fixed rail 7 in the Y-axis direction and a ball screw shaft 8 driven to rotate by a Y-axis servomotor 9 are disposed on the base 1, and a head unit is mounted on the fixed rail 7. A support member 11 is provided, and a nut portion 12 provided on the support member 11 is screwed to the ball screw shaft 8. The support member 11 has X
An axial guide member 13 and a ball screw shaft 14 driven by an X-axis servo motor 15 are provided, and the head unit 5 is movably held by the guide member 13,
A nut portion (not shown) provided on the head unit 5 is screwed to the ball screw shaft 14. And
By the operation of the Y-axis servo motor 9, the support member 11
The head unit 5 is moved in the X-axis direction with respect to the support member 11 by the operation of the X-axis servo motor 15 while moving in the axial direction.

The Y-axis servo motor 9 and the X-axis servo motor 15 are provided with position detecting devices 10 and 16 each composed of a rotary encoder, whereby the moving position of the head unit 5 is detected. It has become.

The head unit 5 is provided with a nozzle member 20 for adsorbing chip components. As shown in FIG. 2, in this embodiment, eight nozzle members 20 are arranged in the X-axis direction. Each nozzle member 20 moves up and down with respect to the frame of the head unit 5 (movement in the Z-axis direction).
And rotation about the nozzle center axis (R-axis) is enabled, and is operated by a Z-axis servo motor and an R-axis servo motor (not shown). Further, each of these servo motors is provided with a position detecting device to detect the moving position of each nozzle member 20.

Further, a sensor unit 23 for taking in a component image when recognizing a component adsorbed by each nozzle member 20 of the head unit 5 is disposed on a side of the component supply unit 4. ing.

The sensor unit 23 includes a large number of LEDs.
And a sensor body 23b having a line sensor 24. As shown in FIG. 3, the line sensor 24 is an image sensor in which CCD solid-state imaging devices 24a are arranged in a direction (Y-axis direction) orthogonal to the arrangement direction of the nozzle members 20, and is formed in the illumination unit 23a. The part image is taken in one-dimensionally through the slit part.

At the time of mounting, after the components are sucked by the nozzle members 20 of the head unit 5, the arrangement direction of the elements 24a of the line sensor 24 (main scanning direction; Y
The head unit 5 is moved at a predetermined speed in a direction (sub-scanning direction; X-axis direction; arrow S direction in FIGS.
4, the image of the component adsorbed by each nozzle member 20 in the main scanning direction is sequentially taken in the sub-scanning direction and output to the image processing unit 30 as a predetermined image signal. Then, when the head unit 5 completely passes over the sensor unit 23, images of all the components that are sucked are captured.

The relative moving speed of the head unit 5 with respect to the sensor unit 23 is set by a control device (not shown) of the mounting machine in accordance with the type of component. In other words, for a component such as a simple rectangular chip component that can be relatively easily recognized, the moving speed of the head unit 5 with respect to the sensor unit 23 is increased, while the component recognition such as a chip component having many leads is performed. For parts that are relatively difficult, the sensor unit 2
The moving speed of the head unit 5 with respect to the head 3 is reduced.

On the base 1 of the mounting machine, a head is provided in a moving path of the head unit 5 for component recognition, that is, at a predetermined position on the left side of the moving path of the head unit 5 with respect to the sensor unit 23. A head detection sensor 25 (shown in FIG. 4) for detecting the unit 5 is provided, and at the time of component recognition described later, the head unit 5 is detected by the head detection sensor 25 so that the component image by the line sensor 24 is detected. An acquisition start timing is designed.

Although the overall configuration of the mounting machine configured as described above is omitted, the mounting machine includes a control device having a microcomputer as a component, and includes the Y-axis and X-axis servomotors 9 and 15 and a head. Each suction nozzle 20 of the unit 5
, The Z-axis servo motor, the R-axis servo motor, the line sensor 24 of the sensor unit 23, and the like are all electrically connected to the control device so as to be integrally controlled.

This control device is provided with an image processing section 30 as shown in FIG. This image processing unit 30
The controller performs overall control of the capture of a component image by the sensor unit 23 and performs component recognition based on the captured image data. The image recognition unit 31, the clock signal generation unit 32, the start signal generation unit 33, It has one component end signal generating means 34 and all component end signal generating means 35.

The clock signal generating means 32 comprises a frequency dividing counter 40, a comparator 41, a frequency dividing register 42, and first and second gate circuits 43 and 44.
The clock signal in the image processing unit 30 is generated and output by dividing the frequency of the pulse train signal output from the position detection device 16.

More specifically, the number of pulses of the pulse train signal output from the position detecting device 16 is counted by the frequency dividing counter 40, and the frequency dividing register 42
Is compared with a preset count N. When the set count number N is reached, the comparator 4
It outputs a signal of one to one pulse.

That is, with the head unit 5 corresponding to the line sensor 24, the X-axis servo motor 15
By driving the (driving means), the head unit 5 is relatively moved with respect to the line sensor 24, and the position detecting device 16 is moved with the movement of the head unit 5 in the X-axis direction at this time.
The clock signal is generated by dividing the pulse train signal output from the N / A by a factor of 1 / N.

The generated clock signal is output from the comparator 41 to the first and second gate circuits 43 and 44. The first gate circuit 43 includes the head detection sensor 2
5, and a clock signal is output from the first gate circuit 43 to the start signal generating means 33 in response to the input of the detection signal.
The second gate circuit 44 includes a start signal generation unit 33.
Is input from the second gate circuit 44 in response to the input of the signal.
To output a clock signal to the sensor unit 23 and the one-component end signal generating means 34.

The start signal generating means 33 comprises a fetch start counter 46, a comparator 47 and a fetch start register 48, and fetches the clock signal output from the first gate circuit 43.
The count is performed at 6, and the comparator 47 compares the count with a count preset in the acquisition start register 48. The count number is set so as to correspond to a moving distance from when the head unit 5 is detected by the head detection sensor 25 to when the head unit 5 reaches just before the sensor unit 23. When the set count is reached, the comparator 47 outputs a capture start signal to the second gate circuit 44.
When the capture start signal is output to the second gate circuit 44 in this manner, the output of the clock signal to the sensor unit 23 is started as described above, and the component by the line sensor 24 is synchronized with the clock signal. Capture of an image is started.

The one-component end signal generating means 34 comprises a line number counter 49, a comparator 50, and a line number register 51.
The clock signal output from the line number counter 4
The number is counted at 9, and the comparator 50 compares it with the count number set in the line number register 51 in advance. When the set count is reached, the comparator 50 sends a one-part end signal to the image recognition unit 31 and the all-parts end signal generating means 35, indicating that the acquisition of the part image of one part by the line sensor 24 has been completed. It is designed to output a signal.

The count number set in the line number register 51 is set to a value at which one component image can be captured based on the type of the component to be recognized.

The all-parts end signal generating means 35 comprises a parts number counter 52, a comparator 53 and a parts number register 54, and outputs the one-part end signal output from the one-part end signal generating means 34 to the number of parts. Counter 5
The number is counted at 2, and the comparator 53 compares the count with a count previously set in the component count register 54. When the set count number is reached, the comparator 53 outputs to the image recognition unit 31 an end-of-all-component signal, that is, a signal indicating that the line sensor 24 has finished capturing component images of all components. .

The image recognizing section 31 writes the image data fetched by the line sensor 24 into the image memory in synchronization with the clock signal, and performs predetermined image processing on the image data to recognize the component. Things. For this reason, the image memory includes the head unit 5
The storage areas have the number of storage areas corresponding to the number of the nozzle members 20, that is, the first to eighth storage areas so that the component image data of all the components sucked by the above can be written. In the component recognition by the image recognizing unit 31, the first processing mode for recognizing each component after once capturing the images of all components sucked by the nozzle members 20, and the capturing of component images While performing, the second processing mode in which the components related to the already captured component images are recognized in parallel can be selectively executed, and the operation by an operator using an operation panel (not shown) or mounting should be performed. These modes are selectively executed by automatic control according to the type of component.

Next, the component recognition operation of the mounting machine configured as described above will be described.

When the mounting operation is started in the mounting machine, the head unit 5 is moved to the component supply unit 4 and the components are sucked by the nozzle members 20. When the suction of the component is completed, the head unit 5 is moved with respect to the sensor unit 23 for component recognition. Specifically, after the head unit 5 is set at the left end of the movement path with respect to the sensor unit 23, the head unit 5 is moved rightward (in the direction of the arrow S in FIGS. 1 and 3) from this position. Then, as the head unit 5 passes over the sensor unit 23, component images of the components sucked by the nozzle members 20 are sequentially captured by the line sensor 24, and component recognition is performed based on the captured images.

Here, in the component recognition of the mounting machine, the first and second parts are recognized by the image recognition unit 31 as described above.
Since the processing mode is selectively executed, the component recognition operation will be described below for each of these modes.

First, the case where the first processing mode is executed will be described. When the first processing mode is executed, component recognition is performed according to the flowchart shown in FIG.

In the first processing mode, when the head unit 5 starts moving for component recognition as described above and the head unit 5 is detected by the head detection sensor 25, the start signal generation means 33 outputs a clock signal. The counting of the clock signal output from the generating means 32 is started. And when it reaches the predetermined count number,
A component image capture start signal is output from the start signal generating means 33, and the capture of component images by the line sensor 24 is started (steps S1 to S3).

When the capturing of the component image is started in this way, the image of the suction component in the main scanning direction is sequentially captured in the sub-scanning direction at a timing synchronized with the clock signal.
This image data is written to the first storage area of the image recognition unit 31. Also, the one-component end signal generating means 34
In the above, when the count of the clock signal is started and reaches a predetermined count number, that is, when the image capture of one component is completed, the one-component end signal generating means 34 outputs a one-component end signal (steps S4 to S4). Step S6).

The all-parts end signal generating means 35
, A one-component end signal is counted, and whether or not this count has reached a predetermined count, that is, whether or not capture of component images of all components sucked by the head unit 5 has been completed Is determined (step S
7, S8).

Here, if the capturing of the component images of all the components has not been completed (NO in step S8), the process proceeds to step S4, and the capturing of component images is sequentially performed. At this time, in response to the input of the one-part end signal output from the one-part end signal generating means 34, the image recognizing unit 31 converts the image data of the first captured part into the first part.
The image data of each component is written while switching the storage area where the image data is written for each component, for example, writing the image data of the second captured component to the second storage area.

On the other hand, if the component images of all components have been completely captured in step S8 (YES in step S8), the all component end signal generation means 35 sends an all component end signal to the image recognition unit 31. Is output. And
When the all-components end signal is input to the image recognition unit 31, the image recognition unit 31 reads out the image data of each component written in each of the first to eighth storage areas, and outputs a predetermined image. By performing the processing, each component adsorbed to the head unit 5 is recognized, and the flowchart ends.

Next, a case where the second processing mode is executed will be described. When the second processing mode is executed, component recognition is performed according to the flowchart shown in FIG.

Steps S11 to S14 of the second processing mode
In steps S1 to S4 of the first processing mode,
Is performed. That is, based on the detection of the head unit 5 by the head detection sensor 25, the capture of the component image by the line sensor 24 is started,
The captured image data is written into the storage area of the image recognition unit 31, and the one-component end signal generation means 3
At 4, the counting of the clock signal is started.

In step S15, the one-component end signal generating means 34 determines whether or not the count number of the clock signal has reached a predetermined count value, that is, whether or not the image of the component has been completely captured. You.

Here, if the component image has not been completely captured, that is, if the component image is being captured (NO in step S15), the process proceeds to step S19, where the image is already stored in the image recognition unit 31. It is determined whether data is stored. At this time, when the image data has not been written yet, that is, when the first component image is being captured (NO in step S19), the process proceeds to step S15. On the other hand, when the image data has already been written, that is, when the second to eighth component images are being captured (YE in step S19).
In S), the image recognition unit 31 reads out the already written image data, and performs predetermined image processing on the read image data, thereby recognizing a component related to the written image data. Then, the process proceeds to step S15. In other words, when the component image of the second component is being captured, the first component whose component image has already been captured is recognized during the capturing of this image. Next, during the fetching of the N-th component image, the component whose (N-1) -th component image is fetched is recognized.

On the other hand, if the capturing of the component image of the component has been completed (YES in step S15), the flow shifts to step S16, where the one-component end signal generating means 34 outputs a one-component end signal.

Then, the all-parts end signal generating means 35
, A one-component end signal is counted, and whether or not this count has reached a predetermined count, that is, whether or not capture of component images of all components sucked by the head unit 5 has been completed Is determined (step S
17, S18).

If the capturing of the component images of all the components has not been completed (NO in step S18),
The process proceeds to step S14, where component images are sequentially captured for the component. At this time, as described above, during the capture of the N-th component image, the component recognition relating to the (N-1) -th captured component image is performed. The image data of each component
The data is alternately stored in the first and second storage areas according to the fetch order. That is, while data is being written to one of the storage areas, the image data in the other storage area is read out and subjected to processing for component recognition.

On the other hand, when the component images of all the components have been captured in step S18 (step S1)
(YES in step 8), the all-parts end signal generating means 35 outputs an all-parts end signal to the image recognition unit 31, and the remaining image data written in the image recognition unit 31, that is, in this embodiment, The image data of the eighth component is read out and subjected to predetermined image processing. Then, after the recognition of the component is performed, the present flowchart ends.

As described above, according to the mounting machine of the above embodiment,
Since a plurality of components are sucked by the head unit 5 and the head unit 5 is relatively moved with respect to the sensor unit 23, each of the sucked component images is sequentially captured and component recognition is performed. As compared with a device that recognizes components by using a component, mounting efficiency can be further improved.

That is, in a conventional device for recognizing a component using an area sensor camera, it is required to stop the component on the area sensor camera for a certain period of time and take in a component image. The same time is required to capture an image even when the camera is mounted or when a component having a complicated shape is mounted.

On the other hand, according to the apparatus of the above embodiment,
As described above, while the head unit 5 is moved with respect to the sensor unit 23, component images of a plurality of sucked components are continuously taken in, so that, for example, only components having a relatively easy-to-recognize simple shape are mounted. In such a case, the moving speed of the head unit 5 with respect to the sensor unit 23 is increased to capture the component image, so that the component image capturing time can be reduced and the mounting efficiency can be increased. In the case where a relatively easily recognizable component having a simple shape and a component having a complicated shape are simultaneously attracted and mounted by the head unit 5, the moving speed of the head unit 5 is reduced by the component image capturing of the component having the simple shape. By increasing the value only when necessary, it is possible to efficiently capture the component image.

As described above, according to the mounting machine of the above embodiment, a plurality of components are simultaneously sucked by the head unit 5 and the head unit 5 with respect to the sensor unit 23 is sucked.
It is possible to continuously capture each suction component image while changing the moving speed of the component according to the type of component, that is, since there is a high degree of freedom in adjusting the component image capturing speed at the time of component recognition,
Compared to a device that recognizes components using an area sensor camera, component images can be captured more efficiently, thereby increasing mounting efficiency.

In the component recognition of the mounting machine of the above embodiment, a first processing mode for recognizing each component after once capturing component images of all components sucked by each nozzle member 20, Since it is possible to selectively execute the second processing mode in which the components related to the already captured component images are recognized in parallel while capturing the images,
This also increases the component recognition efficiency.

That is, as such component recognition processing, a component image is fetched, image processing is performed on the fetched image to recognize the component, and then the next component image is fetched to perform component recognition. A technique of recognizing a plurality of components while repeating such processing is conceivable.

In the case of this technique, if a component that requires a long time for component recognition, such as a component having a relatively complicated shape, is included, the time required from component suction to mounting becomes long, which is preferable. Absent. However, in such a case, according to the first processing mode of the above-described embodiment, the processing for component recognition is performed after all the component images of a plurality of components are captured. The process for recognizing components can be performed on the image data using the period of moving on the substrate 3 and the period of mounting the components on the printed circuit board 3. Therefore, even when a component or the like having a complicated shape is included, component recognition can be performed while suppressing the effect on mounting efficiency.

Further, according to the above-mentioned technology, even when only simple-shaped components that are relatively easy to recognize are mounted, the component image capture time and the image processing time for the captured image are required for each component. Therefore, it is difficult to effectively reduce the time required from component suction to mounting. However, in such a case, according to the second processing mode, a process for component recognition relating to the component image previously captured during the capture of the component image is performed. Recognition of all components can be performed only by time, thereby greatly shortening the time required from component suction to mounting.

Therefore, by selectively executing the first processing mode and the second processing mode in accordance with the type of the component adsorbed on the head unit 5, it becomes possible to increase the recognition efficiency of the component. As a result, the mounting efficiency of the mounting machine can be improved.

The above mounting machine is an embodiment of a mounting machine to which an example of the component recognition device according to the present invention is applied.
The specific structure can be appropriately changed without departing from the gist of the present invention. For example, in the image recognition operation of the image recognition unit 31 of the above embodiment, the first processing mode and the second
Although the processing mode can be selectively executed, it is not always necessary to configure so that both modes can be selectively executed. The image recognition unit 31 is configured to execute only one of the modes. It does not matter. In this case, for example, the image recognition unit 3 executes only the second processing mode.
If 1 is provided, at least two storage areas for writing image data can be used, which is advantageous in terms of hardware.

[0065]

As described above, according to the component recognition device of the present invention, a plurality of components are sucked by a plurality of nozzle members provided in the head unit, and the head unit is relatively moved with respect to the line sensor. By moving the component, the component image of the component sucked by each nozzle member is taken in, and the component is recognized.

Accordingly, in such a configuration, the line sensors are arranged in a direction orthogonal to the arrangement direction of the nozzle members, and the component recognition means sequentially takes in the component images of each component adsorbed by each nozzle member. With such a configuration, by appropriately adjusting the moving speed of the head unit according to the type of the component to be recognized or the like, the efficiency of capturing the component image by the line sensor is increased, and as a result, the mounting efficiency can be increased. .

[0067]

Further, the signal of the one- part end signal generating means is
The next part after the image of one part has been imported
The part related to the part image imported earlier during the image import
By having the function of performing product recognition processing , when components for which component recognition processing is completed within the component image capture time, that is, when components with relatively simple shapes are successively mounted, Recognition of all components can be performed almost only by taking in a component image, thereby increasing component recognition efficiency.

[Brief description of the drawings]

FIG. 1 is a plan view of a mounting machine to which an example of a component recognition device according to the present invention is applied.

FIG. 2 is a front view of the same.

FIG. 3 is an enlarged schematic view of a main part showing a line sensor.

FIG. 4 is a circuit configuration showing an image processing unit.

FIG. 5 is a flowchart illustrating a first processing mode.

FIG. 6 is a flowchart illustrating a second processing mode.

[Explanation of symbols]

1 base 2 Conveyor 3 Printed circuit board 4 Parts supply unit 5 Head unit 20 Nozzle member 23 Sensor unit 23a Lighting unit 23b Sensor body 24 line sensors

Claims (3)

(57) [Claims] 1. A component recognition apparatus for a mounting machine, comprising: a plurality of component suction nozzle members arranged in parallel, and a head unit movable between a component supply side and a component mounting side. A line sensor disposed in the movement path of the head unit, a driving unit for moving the head unit relative to the line sensor in a state where the head unit and the line sensor are associated with each other , The movement position of the head unit
Based on the detection, multiple nozzle members of the head unit
For each picked-up part, one line
Determines that the image capture has been completed, and outputs a one-part end signal.
And a one-part end signal generating means for outputting a signal, and the head unit is relatively moving with respect to the line sensor.
Component recognition means for recognizing each of the components based on the image of the suction component by each of the nozzle members taken into the nozzle . The component recognition means includes a head for the line sensor.
Suction on each nozzle member during one relative movement of the unit
One part end signal generation
Depending on the signal of the step, put it in after the image
The part image that was captured earlier during the image capture of the next part
A component recognition apparatus for a mounting machine, the component recognition apparatus having a function of performing the component recognition processing according to the above . 2. The apparatus according to claim 1, wherein said component recognition means comprises:
During each single relative movement of the head unit to
Are all part images adsorbed on the chisel member captured?
Processing mode for performing component recognition processing for each component image
And the head unit once for the line sensor
Image picked up by each nozzle member during relative movement of
While responding to the signal from the one-part end signal generation means.
After the image of one part has been captured, the next part
Parts related to the part image previously captured during image capture
Selectable execution of the second processing mode for performing recognition processing
And all suction parts by the nozzle member
In the case of simple shape parts with easy image recognition, use the second processing mode.
Run, in other cases to perform the first processing mode
2. The component recognition device for a mounting machine according to claim 1, wherein the component recognition device is configured as follows . 3. A head unit for the line sensor.
Drive to change the moving speed of the
Control means for controlling the means, wherein the control means is configured such that all of the suction components by the nozzle member are used.
Otherwise for simple shape parts with easy image recognition
Of the head unit relative to the line sensor
To control the driving means to increase the speed of movement
Is it possible that mounting apparatus component recognition device according to claim 1 or 2 wherein.