JPH10135700A - Data processing device and electronic components mounting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the verification work of data for recognizing electronic components by displaying graphics created, based on components data, and superposed on a photograph of the components. SOLUTION: On a screen a graphic image of contour lines showing, the dimensions of parts of components prepared from stored components data is superposed on a displayed components picture. The operator presses graphic motion switches 40 to move the graphic in the indicated arrow mark direction and presses graphic rotary switches to align the graphic with the components picture. If not aligned, he can at a glance find a wrong part of the stored components data as well as where it locates.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to a data processing device that processes component data relating to a shape and the like, and an electronic component mounting device that captures an electronic component held by a suction nozzle with an imaging device, positions the component based on a recognition result of the image, and mounts the component on a printed circuit board. .

[0002]

2. Description of the Related Art As this kind of data processing apparatus, Japanese Patent Application Laid-Open
What is described in -333915 gazette is known. According to this conventional technique, data for recognition processing such as dimensions of electronic components is automatically created and made available to an electronic component mounting apparatus. In addition, such data may be created by measuring the dimensions of each part of the component using calipers or the like.

[0003] It is necessary to confirm whether such data can be used for recognition processing, and conventionally, an operator has confirmed a list of numerical values of data.

[0004]

However, in the above-mentioned prior art, it was troublesome to check whether the numerical values corresponded to the actual values.

Accordingly, an object of the present invention is to make it easy to confirm data for recognizing electronic components.

[0006]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a data processing apparatus for processing component data relating to dimensions, shapes, and the like of electronic components. A display unit for superimposing and displaying a graphic generated based on the data is provided.

With this configuration, it is possible to easily compare whether the shape or dimension of each part of the actual part matches the created data.

Further, the present invention relates to a data processing apparatus for processing component data relating to dimensions and shapes of electronic components.
An image pickup means for picking up an image of a part and a display means for superimposing and displaying a graphic generated based on dimensional data of each part of the part among the data on the part image picked up by the image pickup means are provided.

According to the present invention, there is provided an electronic component mounting apparatus for picking up an electronic component held by a suction nozzle with an imaging device, positioning the electronic component on the basis of a recognition result of the image, and mounting the electronic component on a printed circuit board. A storage device for storing component data relating to a shape and the like, and a display device for displaying a graphic generated based on data relating to the component stored in the storage device on a component image captured by the imaging device; It is.

With this configuration, comparison between the created data and the actual parts can be easily performed even while the parts are being mounted.

According to the present invention, preferably, the data processing apparatus according to the first or second aspect further comprises a display means capable of relatively moving and displaying the graphic and the component image.

With this configuration, both images can be moved to a position where a comparison between a component image and a graphic generated from data can be made.

According to the present invention, preferably, in the electronic component mounting apparatus according to the third aspect, display means capable of relatively moving and displaying the graphic and the component image is provided.

According to the present invention, preferably, in the data processing device according to the first or second aspect, switching means for switching a type of illumination for obtaining a component image is provided.

With such a configuration, comparison with data is further facilitated, for example, an image by reflected light of a lead which is not represented by transmitted illumination can be displayed and compared with data.

According to the present invention, preferably, in the electronic component mounting apparatus according to the third aspect, switching means for switching a type of illumination for obtaining a component image is provided.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings.

First, FIG.
And FIG. The electronic component mounting device 23 also serves as a data creation device.

Reference numeral 1 denotes a Y table which moves in the Y direction by the rotation of the Y-axis motor 2. Reference numeral 3 denotes a movement in the X direction on the Y table 1 by the rotation of the X-axis motor 4, resulting in the XY directions. The printed circuit board 6 on which the chip-shaped electronic components 5 (hereinafter, referred to as chip components or components) are mounted is fixedly mounted on fixing means (not shown).

Reference numeral 7 denotes a supply table on which a number of component supply devices 8 for supplying the chip components 5 are provided. Reference numeral 9 denotes a supply stand drive motor, which rotates the ball screw 10 so that the supply stand 7 is guided by the linear guide 12 through a nut 11 fitted with the ball screw 10 and fixed to the supply stand 7, and X Move in the direction. Reference numeral 13 denotes a rotary table which rotates intermittently. At the outer edge of the table 13, mounting heads 15 each having a plurality of suction nozzles 14 as take-out nozzles are arranged at equal intervals in accordance with an intermittent pitch.

Reference numeral I denotes a suction station, which is a stop position of the mounting head 15 where the suction nozzle 14 sucks and picks up the component 5 from the supply device 8 due to the intermittent rotation of the rotary table 13. 5 is adsorbed.

Reference numeral 16 denotes a component recognizing device for recognizing a positional shift of the component 5 to be picked up by the suction nozzle 14 by recognizing the lower surface of the component 5 with a camera in a predetermined visual field range and recognizing and processing the picked-up screen. -Provided in section II.

Next mounting head 1 of recognition station II
The stop position of the position 5 is the angle correction station III, and the angle in which the angular position for correcting the angular position deviation of the chip component 5 based on the recognition result of the recognition device 16 is added to the predetermined angle amount indicated in the mounting data (not shown). The head rotation device 17 rotates the mounting head 15 in the θ direction by an amount. The θ direction is a direction that rotates around the axis of the nozzle 14.

The next stop position after the angle correction station III is the mounting station IV, and the component 5 to which the suction nozzle 14 of the station IV sucks the substrate 6
Is mounted by lowering the mounting head 15.

Numeral 20 denotes an elevating rod which moves up and down, engages with an oscillating lever 21 of the component supply device 8 and oscillates to fit a component storage tape (not shown) in which the chip components 5 are sealed at a predetermined interval. The chip component 5 is supplied to the component suction position of the suction nozzle 14 by intermittent feeding. Reference numeral 22 denotes a tape reel for winding the component storage tape (not shown).

Next, a control block of the electronic component mounting apparatus 23 will be described with reference to FIG.

A CPU 25 is provided in the electronic component mounting device 23 and is connected to a RAM 2 connected via a bus line 26.
Based on data such as NC data, which will be described later, stored in the ROM 7 and controls various operations related to mounting the chip component 5 on the printed circuit board 6 in accordance with a program stored in the ROM 28. Further, the CPU 25 has a function of controlling overall editing and creation of component data of electronic components, which will be described later,
It also has a function of checking whether the component data stored in the storage 27 is correct.

The component recognition device 16 is connected to the bus line 26 via an interface 29.
The component recognition device 16 is an imaging camera 30 as a component imaging device that captures an electronic component sucked and held by the suction nozzle 14.
And a recognition circuit 31 that takes in image data from the camera 30 and performs recognition processing.

When the electronic camera 5 is imaged by the imaging camera 30 via the interface 33, a transmission illumination 34 and a reflection illumination 35 for irradiating the component 5 with light from the camera 30 are connected. Switching of lighting of both illuminations is performed by control.

As shown in FIG. 8, a diffusion plate 36 is provided on the lower surface of the mounting head 15 for diffusing light emitted from below and irradiating the light from above the component 5. It is the transmitted illumination 34 that illuminates the light. Transmitted light 3
When light is irradiated by the component 4, the component 5 is irradiated with light from above, that is, from the opposite side of the camera 30, and the transmitted image (projection image or silhouette image) is captured by the camera 30. When the reflection illumination 35 is turned on, light is emitted toward the lower surface of the component 5, and the light reflected by the lead portion is captured by the camera 30. That is, a reflected image is captured. In this case, as the background of the image is darker, an image with better contrast is obtained, so that the diffuser plate 36 is prevented from hitting the reflection illumination 34 as much as possible.

The bus line 26 has a CRT 39 for displaying various screens via an interface 38.
Are connected to each other to form a display unit together with the CPU 25 and the like. The screen of the CRT 39 has the function of a touch panel, and various operations are performed by pressing various switch units appropriately displayed on the screen.

The NC data and component data used in the electronic component mounting device 23 will be described. These data are stored in the RAM 27.

The NC data is composed of mounting data as shown in FIG. 5 and component arrangement data as shown in FIG. 6, and furthermore, component data as shown in FIG. The component data is used together with NC data as described later.

As shown in FIG. 5, the mounting data includes, in the order of step numbers indicating the mounting order of the components 5, data indicating the position in the XY direction on the substrate 6 on which the component 5 is to be mounted, the angle position to be mounted in the θ direction, and This is data that stores a reel number indicating a position on the supply table 7 to which the component supply device 8 that supplies the component 5 of the component type to be mounted is attached.

The component placement data shown in FIG.
It shows how the component supply device 8 is arranged above, and stores a component type (component ID) indicating the type of component 5 supplied by the component supply device 8 for each reel number.

The component data shown in FIG. 7 is created for each component type identified by the component ID and stored in the RAM 37.
Various data are stored so that the work to be performed by each device at each station to be mounted on the component can be controlled in accordance with the component 5. For example, when the standing state detection sensor (not shown) detects whether or not the normal surface of the chip component 5 is sucked, the standing state detection sensor can detect the standing state when it detects that the thickness is larger than this thickness. Used to make sure.

In order for the component recognition device 16 to perform component recognition, a component size SX and a component size SY are required as shown in FIG. 9A, and a lead length LS and a lead width LW are required.
The information on the number of leads is also data constituting part data. Further, as shown in FIG.
Is also one of the data constituting the component data necessary for recognition.

When the CPU 25 reads the reel number for each step number in the mounting data, the CPU 25 reads the component ID of the same reel number in the component placement data, and reads the component ID in the component data.
Is read and the necessary control is performed.

These data are created by a data creation device such as another computer and transferred to the electronic component mounting device 23 via a communication circuit.
However, in particular, some of the data constituting the component data are stored in the device 23 by the recognition device 16 recognizing the component 5.
It can be automatically created under the control of the PU 25. A part of the automatically generated part data is stored as it is in the RAM 27 as a part of the part data. As described above, the electronic component mounting device 23 also has a function as a data processing device that creates, edits, and processes component data.

The operation will be described below.

First, the operation of automatically creating component data by the electronic component mounting device 23 as a data creating device will be described.

The mounting device 2 is operated by operating an operation unit (not shown).
3 is set to a component data automatic creation mode, and when the electronic component 5 of the component type to be created is set, the suction nozzle 14 is set by the component supply device 8 that supplies the electronic component 5 of the type.
And reaches the recognition station II by the intermittent rotation of the rotary table 13, and stops the rotary table 13.

Next, the CPU 25 turns on the transmission illumination 34 (without turning on the reflection illumination 35), and the imaging camera 30 captures a transmission image of the component 5. The image is taken into the recognition circuit 31, and the values of various data constituting the component data are calculated by the CPU 25 as data creation means based on the recognition processing in the recognition circuit 31. For example,
When a silhouette image as shown in FIG. 9A is obtained, the component size SX, the component size SY, the lead length LS, and the lead width L
Information such as W and the number of leads is calculated and stored in a predetermined area of the RAM 27 as a part of the component data.

Next, the CPU 25 turns off the transmission illumination 34 and turns on the reflection illumination 35.

In this state, for example, the camera 30 picks up a reflection image by the lead of the component 5 as shown in FIG.
The pad length P is determined by the image captured by the recognition circuit 31.
L is calculated and stored in the RAM 27 as a part of the component data. The pad length data cannot be calculated from the transmission image, and the dimension data and the like among the data calculated from the transmission image cannot be calculated from the reflection image.

In this manner, when the data creation is completed, the rotary table 13 is rotated, and the component 5 is not mounted at the mounting station IV, but is discharged at a predetermined discharge station. To be discarded.

Data is created sequentially for other types of parts in the same manner.

In this way, the component data is created, and data that cannot be created only by the recognition of the recognizing device 16 is stored in the RAM 27 by key-in or the like from another personal computer or the operation unit of the device 23. Complete and store.

When it is desired to confirm whether the completed component data is correct before the automatic mounting operation of the components, a confirmation operation is performed as follows.

A part data confirmation mode is selected from a screen (not shown) of the CRT 39, and the part type to be confirmed is identified by the part ID.
Is displayed, for example, a screen shown in FIG. 1 is displayed.

On the screen, an image picked up by the pick-up nozzle 14 and picked up by the pick-up nozzle 14 is conveyed to the recognition station II and stopped, and an image picked up by the image pickup camera 30 is displayed. In addition, on the screen, a graphic image of a contour line indicating the dimensions of each part of the component 5 created from the stored component data is superimposed on the component image.

In the graphic image, a line indicating the outermost dimension of the electronic component 5 sucked in a state where there is no positional shift including an angular shift, a line indicating the outer shape of the molded portion of the component image, and a line indicating the outer shape of the lead are mutually shown. It is displayed according to the positional relationship.

Therefore, since the position of the component 5 is deviated from that of the newly picked-up image of the component 5, the operator next moves to the graphic movement switch unit 4 on each of which an arrow indicating the movement direction is displayed.
Pressing 0 as appropriate causes the graphic to translate in the direction of the arrow displayed on each switch section 40.

Further, the graphic rotation switch unit 41 on each of which an arrow indicating the rotation direction is displayed is appropriately pressed to rotate the graphic in the rotation direction displayed on each switch unit 41 so that the graphic matches the component image. I do. As a result, a matching image is displayed as shown in FIG.
In this way, when they completely match, it can be instantaneously determined that the component data is correct. At this time, the image to be moved may be a component image.

In this way, when the graphic is moved and is not superimposed on the part image and does not match, it is instantly known that there is a wrong part in the stored part data, and where that part is. I know immediately.

The component image shown in FIG. 1 is a transmission image in which the entire image is darkened, and the transmission illumination 34 is turned on. It is possible to switch to the reflection illumination 35 by pressing.

In this case, in addition to the graphic currently displayed, the outline of the shape of the pad portion is graphically displayed, and it can be confirmed whether or not the outline matches. The graphic displayed at the time of the reflection illumination may be the outline of only the pad portion, or the outline indicating the outermost shape and the outline of only the pad portion may be displayed.

When the confirmation screen shown in FIG. 1 is called immediately after the automatic teaching as described above, the graphic is displayed at the position corresponding to the part image from the beginning unless the teaching is mistakenly made. You. In the automatic teaching, data is created by calculating from each position of the picked-up part image, and data on a position where a graphic is to be displayed is calculated and stored in the creation process.

Next, a description will be given of an operation for correcting component data when the graphic image and the component image do not match.

The screen shown in FIG. 11, which is a screen for selecting the part data to be changed in the part shape of the part for correcting the data by pressing the switch section "DATA EDIT" in the screen shown in FIG. Is displayed.

Next, the operator presses the square switch on the left side of the data describing "component dimensions" which is the component data to be corrected.

As a result, as shown in FIG. 10, a screen on which the component dimensions “X” and “Y” can be changed is displayed. The dimension of this part is the dimension of the mold part (the main body part from which the lead is exposed). By pressing the dimension change switches 44 and 45, the data of the dimension in the X direction is changed, and pressing the dimension change switches 46 and 47. Changes the data of the dimension in the Y direction. That is, when the switch 46 is pressed, the outlines 48 and 49 are moved so that the width, that is, the data of the Y dimension is changed to be large. Due to this change, the numerical value of the actual data displayed on the left of the switch section 46 is changed to the outline 4
It changes so as to increase in accordance with the movement of 8, 49. This process is performed under the control of the CPU 25,
The data of the component dimensions (Y dimension) stored in 27 is changed to be larger by the CPU 25 as the changing means by the pressing of the switch unit 46, and is displayed each time the stored value is changed. The CPU 25 changes the numerical value and the graphic, and changes the graphic (contour line 48,
49 movement). By pressing the switch 47, the value of the data changes in a direction to decrease.

The basis of the movement of the graphic outlines 48 and 49 is the center of gravity of the rectangle (the intersection of the diagonal lines) formed by the outline showing the outermost shape, and both the outlines 48 and 49 are symmetrical with respect to this point. Moves. For this reason, in the first image, one of the outlines coincided with the part image. However, if the outline moved due to a change in dimension, the coincident outline moved and did not coincide. I will. In such a case, the graphic itself may be moved by pressing the graphic movement switch unit 40 or the like, and it may be checked whether they match.

When the switch 45 is pressed, the distance between the contours 51 and 52 is reduced, and when the switch 46 is pressed, the distance between the contours 51 and 52 is increased and displayed. The numerical value of the data changes accordingly.

When the switches 44, 45, 46, and 47 are pressed once, the contour line is moved by the minimum unit, which is the resolution of the CRT 39, and the data of the dimension corresponding to that is changed. It is made to move.

In this way, when the component image and the graphic image match and it is confirmed that the component data is correct, the set numerical value is determined by pressing the switch 54, and the set value shown in FIG. Return to the screen.

If other data of the component data is not correct, a screen similar to that shown in FIG. 10 in which other data can be corrected can be called up by pressing the corresponding square switch.

When the user wants to end the setting operation, the user can press the switch 56 to end the setting operation.

These correction operations are performed as operations from the screen shown in FIG. 1. However, the same operation can be performed when new component data is created from the beginning. Can be displayed and edited in the same manner to create component data.

Pressing of these switches is performed by moving a cursor (arrow or the like) displayed on the screen of the CRT 39 using a so-called pointing device, and pressing a click key (click) when the cursor matches the switch. By doing so, the same control can be performed by specifying the coordinates on the screen of the switch unit.

In the present embodiment, the above-described operation is performed by the electronic component mounting apparatus. However, the same operation can be performed by connecting a so-called personal computer to the apparatus as long as there is an apparatus for imaging the component.

When modifying or creating data,
In the present embodiment, the data to be created is specified on the screen of FIG. 11. However, the data to be created is specified by clicking the click key after matching the contour (eg, the contour 48) to be moved by moving the cursor with the pointing device. Identify the contour (pointing device, CPU 25
And the displayed cursor constitute the specifying means. ), While continuing to click the click key, the cursor is moved (so-called drag operation), and only the target outline is moved together with the cursor (the pointing device, the CPU 25 and the displayed cursor constitute a moving means). .), May be made to coincide with the component image. At this time, the distance between the opposite contour line, that is, the data of the X dimension and the like is automatically changed by the movement of the contour line, and the data is changed. Like this one
If only the outline of the book is moved, the dimension can be changed without any influence even when one of the opposing outlines matches the component image. Further, it is not necessary to change the screen in order to select the target component data in FIGS. 10 to 11, or the frequency of the change is reduced. In addition, an object to be changed can be directly selected from the graphic image.

It is very effective to display a component image when creating or modifying component data. However, even if a component image is not displayed, a graphic is displayed for data input. By pressing the position of the outline of the graphic by pressing the switch section 44 or the like or by the above-described drag operation, the data can be edited more easily as compared with the numerical key-in operation.

Further, by confirming whether or not the recognition operation can be performed by performing the component recognition operation using the actual component 5 based on the thus generated and confirmed component data, more accurate data can be obtained. Although it is possible, the recognition operation of the electronic component 5 that is automatically imaged after the confirmation operation is completed may be performed based on the component data whose confirmation has been completed.

After the confirmation of the component data is completed and stored in the RAM 27, the NC data is set in accordance with the type of the board 6, and the automatic operation of component mounting as described below starts. Is done.

The operation of this operation will be briefly described below.

The electronic component 5 is taken out of the component supply device 8 according to the mounting data, and the mounting head 15 moves to each station by intermittent rotation of the rotary table 13.

In the process of moving to each station, each operation is performed. For example, in the recognition station II, the component recognition device 16 recognizes the displacement of the component 5. At this time, a recognition error or the like is determined based on information of various dimensions of the component data, and the angle shift and the position shift are recognized. After that, the angular position and the position in the XY directions are corrected, and the component 5 is mounted on the printed circuit board 6 based on the mounting data at the mounting station IV.

[0079]

As described above, according to the present invention, it is possible to easily confirm whether the created electronic component recognition data matches the actual component.

[Brief description of the drawings]

FIG. 1 is a CRT screen showing a component image and a graphic image for checking component data.

FIG. 2 is a plan view of the electronic component mounting device.

FIG. 3 is a side view of the electronic component mounting device.

FIG. 4 is a control block diagram of the electronic component mounting apparatus.

FIG. 5 is a diagram showing mounting data.

FIG. 6 is a diagram showing component placement data.

FIG. 7 is a diagram showing component data.

FIG. 8 is a side view showing an imaging camera and each illumination in the recognition station.

FIG. 9 is a diagram illustrating an image of an electronic component captured by an imaging camera.

FIG. 10 is a CRT screen view displaying a component image for editing component data and a graphic image.

FIG. 11 is a CRT screen view for selecting data to be edited in order to edit component data.

[Explanation of symbols]

 Reference Signs List 5 chip-shaped electronic component 6 printed board 14 suction nozzle 23 electronic component mounting device 25 CPU 27 RAM (storage unit) 30 imaging camera (imaging unit) 39 CRT (display unit) 43 illumination switch unit (switching unit)

Claims (7)

[Claims] 1. A data processing apparatus for processing component data relating to dimensions, shapes, etc. of electronic components, wherein an imaging means for imaging the component and a graphic generated based on the data are superimposed on the component image captured by the imaging means. A data processing device comprising a display means for displaying the data. 2. A data processing apparatus for processing component data relating to dimensions, shapes, etc. of electronic components, comprising: an image pickup means for picking up an image of a component; and a part image picked up by the image pickup means. A data processing device comprising a display unit for displaying a graphic generated based on the superimposed graphic. 3. An electronic component mounting apparatus which picks up an electronic component held by a suction nozzle with an imaging device, positions the electronic component based on the recognition result of the image, and mounts the electronic component on a printed circuit board.
Storage means for storing component data relating to dimensions and shapes of electronic components, and display means for superimposing and displaying a graphic generated based on data relating to the component stored in the storage means on a component image taken by the imaging means An electronic component mounting device, comprising: 4. The data processing apparatus according to claim 1, further comprising a display unit capable of relatively moving and displaying the graphic and the component image. 5. The electronic component mounting apparatus according to claim 3, further comprising a display unit capable of relatively moving and displaying the graphic and the component image. 6. The data processing apparatus according to claim 1, further comprising switching means for switching a type of illumination for obtaining the component image. 7. The electronic component mounting apparatus according to claim 3, further comprising a switching unit that switches a type of illumination for obtaining the component image.