JP3397982B2 - 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 picking up components such as ICs by a head unit equipped with a plurality of nozzle members and mounting them at a predetermined position on a printed circuit board. The present invention relates to a component recognizing device for a mounting machine, which recognizes a component using a line sensor.

[0002]

2. Description of the Related Art Conventionally, a head unit having a nozzle member for mounting components sucks electronic components such as ICs from a component supply section and transfers them onto a printed circuit board arranged at a predetermined position on the component mounting side. A mounting machine which is mounted on a printed circuit board at a predetermined position is generally known.

In such a mounting machine, there is some variation in the position of the component when the component is picked up by the nozzle member, and it is required to correct the mounting position according to the deviation of the component suction position. Therefore, it has been performed to recognize the sucked component to detect the shift of the suction position with respect to the nozzle member, and to detect the abnormality of the component based on the component recognition. It is also performed to detect breakage of the sheet.

As an apparatus for recognizing such a part, for example, a line sensor for picking up an image of a part is installed on a base of a mounting machine, and a head unit after picking up a part is passed over the line sensor to display a part image. There has been proposed an apparatus that takes in and recognizes a component based on this component image.

[0005]

By the way, in order to improve the mounting efficiency, the head unit is equipped with a plurality of nozzle members, so that a plurality of components are sucked simultaneously or successively, and then the head unit is moved to the above-mentioned manner. A mounting machine has been proposed in which after moving the image pickup device to the line sensor to perform image pickup of each suction component by the line sensor and component recognition based on it, each suction component is continuously mounted on a printed circuit board. When the mounter performs the component recognition based on the image pickup by the line sensor, the following problems remain.

When images are picked up by the line sensor while moving the head unit in a state where the parts are sucked by the plurality of nozzle members of the head unit, the parts images are continuous,
In addition, since the images are captured in a relatively close state, it is necessary to distinguish the images for each component. In addition, it is required to eliminate the image of the extra part other than the target part as much as possible, and to capture the image in the range suitable for recognizing the target part. It is necessary to capture an image in a range that is somewhat larger than the size of.

Therefore, it is necessary to set the image capturing range (window) in advance according to the type of the component sucked by each nozzle member, and to recognize each component for each window when recognizing the component. If the adsorbed components are adjacent to each other and are relatively large in size, and the intervals between the adsorbed components are small, the windows may overlap with each other only by setting the windows according to the components. In this case, it is possible to narrow and reset these windows to avoid duplication, but if the window becomes too narrow, it may be difficult to recognize due to parts protruding from the window. It is desirable to respond appropriately in such cases.

The present invention has been made in order to solve the above-mentioned problems, and makes it possible to obtain an appropriate image capturing range for each of a plurality of components adsorbed to a head unit, and to use continuous images using a line sensor. An object of the present invention is to provide a component recognition device for a mounting machine that can effectively perform recognition based on loading.

[0009]

In order to achieve the above object, the present invention has a plurality of nozzle members for adsorbing components,
A head unit movable along the component supply side and the substrate arranged on the component mounting side is provided, and a line sensor for image pickup of the component is provided in the movement path of the head unit, and the head unit and the line sensor after the component is picked up. In the component recognizing device of the mounting machine, which performs component recognition based on a component image captured by the line sensor while moving the head unit relative to the line sensor in a state where A head unit sucks a plurality of components, and after the components are recognized, the mounting process for mounting on the substrate is performed a plurality of times on one substrate. The above-mentioned line sensor for the component suction data setting means to be set and each component sucked in each mounting process An image range setting means for setting so as not to overlap each other image capture range between parts with,
With respect to the determination unit that determines whether or not each image capture range set by the image range setting unit is sufficient as a range necessary for recognition of each component, and the component determined by this determination unit that the image capture range is insufficient, To replace it with another part that can be recognized within the image capture range,
And a component suction data changing means for changing the data set by the component suction data setting means.

According to this apparatus, the plurality of parts sucked by the head unit having the plurality of nozzle members are set such that the image capturing ranges do not overlap each other, and the line sensor is used under this setting. Each part is recognized based on the continuous image capturing that has been performed. In particular, if there is a picked-up part that causes the image pick-up range to be insufficient if the image pick-up ranges do not overlap with the original picked-up data, replace that part with another part that can be recognized within the image pick-up range. Therefore, the lack of the image capture range is resolved,
A proper image capturing range is secured.

In the apparatus of the present invention, the image range setting means sets, for example, a basic image capturing range for each of a plurality of components to be attracted, and the image capturing ranges of the components are mutually set. When overlapping, the image capturing range is narrowed and reset.

In this way, first, the image capturing range corresponding to each suction component is set based on the initial component suction data, and when the ranges overlap, the above resetting is performed. Then, at the time of resetting, if the image capture range is narrowed to some extent, the component can be recognized, but if the image capture range is significantly narrowed, it becomes difficult to recognize the component. In this case, the component suction data is changed.

Further, in the above apparatus, the component suction data changing means determines that the image capturing range is insufficient, for example, in the determination by the determining means regarding the image capturing range of the component to be subjected to the mounting process this time. When there is a component, as a component to be replaced with that component, a recognizable component within the image capture range is searched for from components scheduled to be used in the next mounting process.

Further, the component suction data changing means is used when there is a component which is determined to be insufficient in the image capturing range in the determination by the determining means of the image capturing range of the component which is to be subjected to the mounting process this time, and ,
If there is no recognizable component within the capture range among the components to be subjected to the next mounting process, the process of the component determined to be insufficient in the image capture range is performed on one printed circuit board. Change it so that it is performed at the end of multiple implementation processes performed for it.

With this configuration, component recognition and the like can be effectively performed on one printed circuit board during the mounting process performed a plurality of times by the head unit having a plurality of nozzle members.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings.

1 and 2 show the structure of a mounter in which the component recognition apparatus according to the present invention is mounted. As shown in these figures, a conveyor 2 for carrying a printed circuit board is arranged on a base 1 of the mounting machine, and the printed circuit board 3 is carried on the conveyor 2 and stopped at a predetermined mounting work position. It is like this. 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 4a.

A head unit 5 for mounting components is mounted above the base 1. 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. In the present embodiment, the head unit 5 is in the X-axis direction (conveyor direction) and the Y-axis direction (X-axis on a horizontal plane). It is possible to move in the direction orthogonal to.

That is, a fixed rail 7 in the Y-axis direction and a ball screw shaft 8 rotatably driven by a Y-axis servomotor 9 are provided on the base 1, and the head unit is supported on the fixed rail 7. A member 11 is arranged, and a nut portion 12 provided on the support member 11 is screwed onto the ball screw shaft 8. Further, the support member 11 is provided with a guide member 13 in the X-axis direction and a ball screw shaft 14 driven by an X-axis servomotor 15, 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 onto the ball screw shaft 14. And
The support member 11 is moved in the Y-axis direction by the operation of the Y-axis servomotor 9, and the head unit 5 is moved relative to the support member 11 by the operation of the X-axis servomotor 15.
It is designed to move in the axial direction.

Further, the Y-axis servomotor 9 and the X-axis servomotor 15 are provided with position detecting devices 10 and 16 each composed of a rotary encoder, by which the moving position of the head unit 5 is detected. It is like this.

The head unit 5 is provided with a plurality of nozzle members 21 for sucking components, and in this embodiment, eight nozzle members 21 are provided side by side in the X-axis direction as shown in FIG. Each nozzle member 21 moves up and down with respect to the frame of the head unit 5 (moves in the Z-axis direction).
And rotation about the nozzle center axis (R axis) is possible, and Z
The axis servo motor 17 and the R axis servo motor 19 (each shown in FIG. 4) are operated. Further, these servomotors 17 and 19 are respectively provided with position detecting devices 18 and 20 (shown in FIG. 4),
The moving position of each nozzle member 21 is detected. Note that FIG. 4 shows the Z-axis servomotor 17, the R-axis servomotor 19 and the position detection device for one nozzle member 21.

Further, an image pickup unit 23 for recognizing the component sucked by each nozzle member 21 of the head unit 5 is provided between the component supply section 4 and the component mounting section. Unit 23 is line sensor 24
Is equipped with. The line sensor 24 is an image sensor in which CCD solid-state image pickup devices 24a are arranged side by side in a direction (Y-axis direction) orthogonal to the arrangement direction of the nozzle members 21, as shown in FIG. It is designed to capture images.

At the time of mounting, after the component 22 is sucked by each nozzle member 21 of the head unit 5, the direction (sub-scanning direction; sub-scanning direction; direction) orthogonal to the element array direction (main scanning direction; Y-axis direction) of the line sensor 24. X-axis direction; Figures 1, 3
Then, by moving the head unit 5 in the direction of arrow S), the image in the main scanning direction of the component 22 adsorbed to each nozzle member 21 by the line sensor 24 is sequentially captured in the sub scanning direction, and a predetermined image signal is obtained. Is output to the image processing means 34 described later. Then, when the head unit 5 completely passes over the imaging unit 23, all the images of the component 22 adsorbed by the head unit 5 are captured by the line sensor 24.

Next, the control system of the mounting machine will be described with reference to FIGS.
Explained by.

FIG. 4 is a block diagram showing an example of a control system. As shown in FIG. 4, the mounting machine has a controller 30. The controller 30 has an axis control means 31,
A main control means 32, a memory 33 and an image processing means 34 are provided. The axis control means 31 includes the servo motors 9, 15, 17, 19 and the position detection means 10, 1.
6, 18, 20 are connected.

The main control means 32 centrally controls the operation of the mounting machine, and based on various data for component mounting read from the memory 33, the servo motors 9, 15, 17, 19 and the like are controlled, data such as an image range to be described later is stored in the memory 33, and at the time of component recognition, information from the image processing means 34 is received and the suction position of the component based on the image processing. The calculation of the mounting position correction amount according to the deviation is performed.

The image processing means 34 is connected to the line sensor 24, inputs a component image captured by the line sensor 24, and performs predetermined image processing to recognize the suction component. There is.

FIG. 5 is a functional block diagram. As shown in FIG. 5, the main control means 32 has a component suction data setting means 35, an image range setting means 36, a discriminating means 37, and
The component suction data changing means 38 is included. The head unit 5 picks up a plurality of components and mounts them on a printed circuit board after component recognition is performed a plurality of times on a single board. The nozzle member to be set is set by the component suction data setting means 35. Further, the image range setting means 36 sets the image capturing ranges of the line sensors 24 so that the image capturing ranges of the respective components attracted during each mounting process do not overlap each other.

Further, the discriminating means 37 discriminates whether or not each image capturing range set by the image range setting means 36 is sufficient as a range necessary for recognition of each component, and when the component image capturing range is insufficient. For the determined component, the component suction data changing unit 38 changes the component suction data in order to replace it with another component that can be recognized within the image capturing range.

A specific example of control by the controller 30 will be described with reference to the flow charts of FIGS. In these flowcharts, the current recognition group means a plurality of mounting processes performed on one board (a series of processes for picking up, recognizing, and mounting a plurality of components).
Of these, it means a group of nozzle members and parts used in the mounting process to be performed this time. Further, the recognition window means an image capturing range of each component.

FIG. 6 shows a main routine including a mounting process and a process such as window allocation performed prior to the mounting process.

When this routine starts, first, the component pick-up data of the preset current recognition group is fetched (step S1), and by this data,
The nozzle member 21 used in the mounting process this time and the component 22 sucked by each nozzle member 21 are specified. Next, a recognition window allocation routine (step S2) and a recognition window data check and component suction data replacement routine (step S3) which will be described later in detail are executed.

After these processes, the nozzle member 2 provided in the head unit 5 based on the above component suction data.
Part adsorption using all or part of 1 (step S4)
Then, the component recognition (step S5), which will be described in detail later, and the component mounting (step S6) are sequentially performed. Then, it is checked whether or not the mounting of all the components to be mounted on one printed circuit board 3 is completed (step S7), and the processes of steps S1 to S6 are repeated until the mounting is completed.

FIG. 7 shows step S in the main routine.
The recognition window allocation routine performed in 2 is specifically shown. This routine functions as the image range setting means 36, and in the example shown in this figure, a basic image capture range is set for each of a plurality of parts to be sucked (steps S201 to S201).
(S208), and when the capturing ranges of the parts overlap with each other, the image capturing range is narrowed and reset (steps S209 to S216).

When this routine starts, the nozzle number N of the current recognition group is initialized (N = 1), and the window of the Nth nozzle of the current recognition group is WIN [N], the Nth nozzle of the current recognition group. The component data of the nozzle is CMP1 [N] and the number of nozzles is A (step S201).

Subsequently, after confirming the layout of each nozzle member (step S202) and confirming the data information of the current recognition group (step S203),
It is determined whether or not to use the Nth nozzle (the first nozzle is initialized because N = 1) (step S204). If the No. N nozzle is not used, the window WIN [N] is not allocated (step S2).
05), the nozzle number is replaced with N = N + 1 to determine the next nozzle member (step S2).
06), and returns to step S204.

When the No. N nozzle is used (step S
If YES in 204), the component data of the Nth nozzle
The window WIN [N] of the Nth nozzle is allocated from CMP1 [N] (step S207). Here, the window WIN [N] of the Nth nozzle is set according to the type of the component sucked by the Nth nozzle. For example, for the size of the component,
The range is expanded by a predetermined ratio in consideration of the maximum deviation of the suction position and a certain amount of margin.

Further, it is checked whether or not the nozzle number N has reached the nozzle number A (step S208). If the determination is NO, the steps S206 through S204 to S20 are performed.
The process of 8 is repeated. Thus, the head unit 5
It is checked whether or not all the nozzle members 21 are used and the window WIN [N] corresponding to the suction component 22 is determined for the nozzle member 21 used.

When the nozzle number N reaches the nozzle number A (when step S208 is YES), the nozzle number N
Is returned to "1" (step S209), and the code i is set to "1" (step S210).
It is checked whether or not the window WIN [N] of the No. nozzle and the window WIN [N + i] of the No. N + i nozzle interfere with each other, that is, whether or not these windows have overlapping portions (step S211). Then, when there is no interference, the code i is replaced with i + 1 (step S212) and the determination of step S211 is repeated.

If there is window interference (step S
If 211 is YES), windows WIN [N], WIN [N +
i] is corrected so as not to interfere (step S213),
For example, the overlapping portion of the windows WIN [N] and WIN [N + i] is divided at a predetermined ratio according to each component and distributed to both windows. Then, it is checked whether N + i has reached the number of nozzles A (step S214), and the determination is N.
If it is O, through steps S212, S211 to S214
The process of is repeated.

Thus, the window WIN [N] of the Nth nozzle
And the presence or absence of interference with the windows of other nozzles, and processing such as window correction according to it is performed.
It is checked whether or not the nozzle number N reaches the number A of nozzles after being replaced with N = N + 1 (steps S215 and S2).
16) By repeating the processing of steps S210 to S216 until the nozzle number N reaches the number of nozzles A, the presence / absence of interference between all windows and the processing such as window correction according to the determination are performed.

FIG. 8 shows the step S in the main routine.
3 specifically shows a routine of data check of a recognition window and replacement of component suction data performed in 3. This routine functions as the discriminating means 37 and the component suction data changing means 38.

When this routine is started, the nozzle number N of the current recognition group and the nozzle number M of the next group are initialized (N = 1, M = 1), and the window of the Nth nozzle of the current recognition group is started. But
WIN [N], the component data of the Nth nozzle of the current recognition group is CMP1 [N], the component data of the Mth nozzle of the next group of the current recognition group is CMP2 [M], and the number of nozzles is A (step S301).

Then, it is checked whether or not the window WIN [N] of the Nth nozzle of the current recognition group has an appropriate size for recognizing the corresponding component of CMP1 [N] (step S302). If the window WIN [N] is appropriate, it is checked whether the nozzle number is replaced with N = N + 1 and the value exceeds the nozzle number A (steps S303 and S304), and the nozzle number A is set. If not exceeded, the process returns to step S302.

When the window WIN [N] is not appropriate (NO in step S302), the component suction data of the next group is fetched (step S305), and then M = 1 is set (step S306). ), It is checked whether or not the part of CMP2 [M] corresponding to the Mth nozzle of the next group can be recognized in the window WIN [N] (step S307). If not recognizable, M = M + 1 is set (step S308), and it is checked whether the value of M exceeds the number A of nozzles (step S309). If it does not exceed the number A of nozzles, the process returns to step S307. . Thus, among the parts of the next group the above window WIN
Recognizable parts are searched by [N].

When the component of CMP2 [M] can be recognized in the above window WIN [N], CMP1 of the current recognition group
The data of the parts of [N] and the data of the parts of CMP2 [M] of the next group are exchanged (step S310). Further, the windows of the current recognition group are reallocated (step S311).

If the determination in step S309 is NO, that is, if all the parts in the next group are not recognizable in the window WIN [N], the mounting data of the parts in CMP1 [N] is Moved to the end (step S31
2) Then, windows are reallocated (step S311). When the reallocation of windows is completed, the process proceeds to step S303 and the subsequent steps.

If it is determined in step S304 that the value of N exceeds the number of nozzles A, this routine is ended.

FIG. 9 shows step S in the main routine.
5 specifically shows the component recognition routine performed in step 5.

When this routine starts, the nozzle number N of the current recognition group is initialized (N = 1), the window of the Nth nozzle of the current recognition group is WIN [N], and the X coordinate of the line sensor position. Is set as CAMX (step S501).

Subsequently, the recognition part information is transferred to the vision system including the image processing means 34 and the like (step S502), and the recognition window information is further transferred to the vision system (step S503). Then X
When the axis servo motor 15 is activated, the movement of the head unit 5 in the sub-scanning direction (X-axis direction) is started (step S504).

Next, it is judged whether or not the Nth nozzle of the current recognition group is the first nozzle to be recognized (step S505). If the judgment is NO, the nozzle number is N =.
After being replaced with N + 1 (step S506), the process returns to step S505. That is, since it is not necessary to recognize the nozzle member 21 that has not sucked the component, the first nozzle member 21 that has sucked the component is searched for in steps S505 and S506.

If step S505 is YES, the X coordinate WX of the tip of the window WIN [N] of that nozzle is calculated based on the confirmation of the current position of the Nth nozzle at that time, and this coordinate WX is the line sensor position. It is checked whether or not the X coordinate CAMX is reached, and these processes are repeated until CAMX = WX (steps S507 to S509).

When CAMX = WX, the axis control means 31
A recognition start signal is output from the above to the vision system via the main control means 32, and in response thereto, recognition of each suction component is continuously executed by the image captured by the line sensor 24, and the main control means 32 causes the vision to be performed. Receive the recognition result from the system (steps S510 to S
512). In this case, based on the window allocation (re-allocation) by the routines of FIGS. 7 and 8 as described above, the windows are divided into the continuously captured images, and the predetermined image scanning is performed for each window. The parts are recognized. Then, based on the recognition of each component, a component suction defect or the like is determined, the component suction position shift is checked, and a mounting position correction amount corresponding thereto is obtained.

According to the mounting machine equipped with the component recognition apparatus of the present embodiment as described above, the head unit 5 having the plurality of nozzle members 21 performs the mounting process on the printed circuit board 3 for each of a plurality of parts, thereby improving the processing efficiency. In particular, at the time of component recognition after component suction, image processing is performed while the component images are continuously captured by the line sensor 24, and a plurality of suction components are efficiently recognized and continuous images are obtained. The windows are properly allocated so that the parts can be distinguished and recognized.

That is, since each suction component is recognized based on the image pickup by the line sensor 24, the windows are allocated prior to the mounting process. At this time, the windows are basically arranged in the routine of FIG. 7 described above. Is set with a margin so that it can be sufficiently recognized depending on the parts, but if there is interference between the windows, the windows are corrected so as to be narrowed. At this time, there may be a case where the correction causes the window to be narrowed to some extent, but there is a case where the recognition is not hindered, and a case where the window is significantly narrowed to make it difficult to recognize. Therefore, in the routine shown in FIG. To be determined.

When the window is too narrow to recognize the suction component corresponding to the window, a component recognizable in the window is searched from the next group, and the component suction data is replaced to replace it. Is changed so that a state in which a proper window is obtained for the component is secured. Also, when there is no component that can be recognized in the window in the next group, the component data corresponding to the window is moved to the end of the mounting data, that is, the mounting of the component is performed by a plurality of components on one printed circuit board. It can be recognized by changing it so that it is performed at the end of the implementation process.

As described above, the windows are corrected as necessary at the time of allocating the windows for the recognition using the line sensor 24, and the component suction data is changed when the correction cannot deal with them. As a result, an appropriate window allocation state is ensured, so that each suction component can be recognized well.

The specific structure of the mounting machine to which the device of the present invention is applied is not limited to the above embodiment. For example, the drive means for moving up and down each nozzle member 21 of the head unit 5 may be an air cylinder or the like. Further, the number of each nozzle member 21 of the head unit 5 is not limited to eight, but may be any plural number.

[0060]

As described above, according to the present invention, a head unit having a plurality of nozzle members is used for mounting, and a line sensor is used to take in the head unit while moving the head unit relative thereto. In a device for recognizing a component based on a component image, a component suction data setting means, an image range setting means for setting an image capture range by a line sensor so that the components do not overlap each other, and a set image capture For a component whose range is insufficient, since a component suction data changing unit that replaces another component recognizable within the image capturing range is provided, it is possible to obtain an appropriate image capturing range for each of a plurality of suction components. It is possible to effectively recognize each component based on continuous image capturing using a line sensor.

Further, in this apparatus, the component adsorption data changing means performs the next mounting process when there is a component which is determined to have an insufficient image capturing range among the components to be provided for the mounting process this time. The parts that are to be provided are searched for those that can be recognized within the image capture range, and the parts that are to be provided for the next mounting process are the components that can be recognized within the capture range. If there is not, it is possible to change the process of the component determined to be insufficient in the image capturing range to the end of a plurality of mounting processes performed on one printed circuit board. It is possible to effectively perform component recognition and the like in a mounting process performed on a single printed circuit board by a head unit having a plurality of nozzle members a plurality of times.

[Brief description of drawings]

FIG. 1 is a plan view showing an example of a mounting machine provided with a component recognition device of the present invention.

FIG. 2 is a front view of the mounting machine.

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

FIG. 4 is a block diagram showing a control system of the mounting machine.

FIG. 5 is a functional block diagram of a main part of a control system.

FIG. 6 is a flowchart showing a main routine of control of the mounting machine.

FIG. 7 is a flowchart showing a routine for allocating a recognition window.

FIG. 8 is a flowchart showing a routine for data check of a recognition window and replacement of component data.

FIG. 9 is a flowchart showing a part recognition routine.

[Explanation of symbols]

3 printed circuit boards 4 Parts supply department 5 head unit 21 Nozzle member 22 parts 24 line sensor 30 controller 34 image processing means 35 Parts suction data setting means 36 Image range setting means 37 Discrimination means 38 Parts suction data change means

Claims (4)

(57) [Claims] 1. A plurality of nozzle members for picking up parts,
A head unit movable along the component supply side and the substrate arranged on the component mounting side is provided, and a line sensor for image pickup of the component is provided in the movement path of the head unit, and the head unit and the line sensor after the component is picked up. In the component recognizing device of the mounting machine, which performs component recognition based on a component image captured by the line sensor while moving the head unit relative to the line sensor in a state where A head unit sucks a plurality of components, and after the components are recognized, the mounting process for mounting on the substrate is performed a plurality of times on one substrate. The above-mentioned line sensor for the component suction data setting means to be set and each component sucked in each mounting process An image range setting means for setting so as not to overlap each other image capture range between parts with,
With respect to the determination unit that determines whether or not each image capture range set by the image range setting unit is sufficient as a range necessary for recognition of each component, and the component determined by this determination unit that the image capture range is insufficient, To replace it with another part that can be recognized within the image capture range,
A component recognition device for a mounting machine, comprising: component suction data changing means for changing the data set by the component suction data setting means. 2. The image range setting means sets a basic image capture range for each of a plurality of components to be attracted, and captures an image when the image capture ranges of the components overlap each other. The component recognition device for a mounter according to claim 1, wherein the range is narrowed and reset. 3. The component adsorption data changing means, when there is a component which is determined to be insufficient in the image capturing range in the determination by the determining means regarding the image capturing range of the component which is to be subjected to the mounting process this time, 3. As a component to be replaced with that component, a component recognizable within the image capturing range is searched for from components scheduled for the next mounting process. Component recognition device for mounting machine. 4. The component suction data changing means determines that there is a component which is determined to be insufficient in the image capturing range in the determination by the determining means of the image capturing range of the component scheduled to be used for the mounting process this time. And, if there is no recognizable component within the capture range in the components to be provided for the next mounting process, the process of the component determined to be insufficient in the image capture range is performed.
4. The method according to claim 3, wherein the mounting process is performed at the end of a plurality of mounting processes performed on one printed circuit board.
Component recognition device for the mounting machine described.