JPH03291762A - Device for preparing printed circuit board assembly drawing - Google Patents

Abstract

PURPOSE:To recognize unloading by deleting the external form data of an unloaded part from the inside of an assembly drawing data storage part, storing the shape data of the relevent part into the assembly drawing data storage part instead of the deleted data and outputting the result of the processing by a plotter or the like. CONSTITUTION:When a part name is designated from a keyboard 1, an input/output control part 10 transfers this part name to a command control part 11, and the control part 11 fetches the data of the relevant part, among data previously stored in an external part form storage part 12, into a temporary storage part. Continuously, the data stored in the temporary storage part is stored into an assembly drawing data storage part 13 for the unit of the part according to coordinates designated by a coordinate input device 2, and outputted for display onto a CRT display device 3 or outputting to a plotter 4 after being converted to an image data by the control part 10 based on the data stored in the storage part 13. Next, an unloading command is inputted by the keyboard 1 or the like, and the part to be unloaded is inputted by a coordinate input device 2 such as a mouse, etc. When the coordinates of the part are designated as the unloading command by an operator, the data of the relevant part is deleted from the storage part 13.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a printed circuit board assembly diagram creating apparatus for creating a printed circuit board assembly diagram necessary for mounting various parts on a printed circuit board.

[Prior art]

FIG. 2 is a diagram showing an example of the configuration of a conventional printed circuit board assembly diagram creating apparatus of this type. The operator specifies the name of the component using the keyboard 1 and inputs the coordinates on the printed circuit board on which the component is mounted using the coordinate input device 2 such as a mouse or digitizer. The status of the mounted parts is displayed on the CRT display device 3, and the operator repeats this work while checking the image displayed on the CRT display device 3 until all the necessary parts have been mounted. When all the components have been mounted, they can be synthesized with the printed circuit board outline input in advance, and at the same time, the synthesized result is output to block 4.

FIG. 3 is a diagram showing an example of an actual Bunonto board assembly diagram output from the block 4. As shown in the figure, a resistor frame 102 with seven resistors arranged horizontally at a predetermined position in a printed circuit board outline 101, an IC component frame with four IC parts arranged horizontally and its component name (26LS31) 103, and six ICs arranged horizontally. Parts frame and its part name (74ALS109) 104, 5 vertically
A single component frame 105 for capacitors, etc., with three pieces arranged horizontally;
IC component frames arranged 3 vertically and 2 horizontally and their component names (2
6LS32) 106, IC component frame with two vertically arranged and its component name (A, LS20) 107, I with two vertically arranged
The C component frame and its component name (ALS32) 108 are output from block 4. FIG. 4 is an example of a functional block diagram of the printed circuit board assembly diagram creating apparatus. The following describes what kind of processing is performed internally based on instructions from the operator. First, if you specify the part name from keyboard 1,
The input/output control unit 10 transfers this to the command control unit 11. The command control section 11 takes in the data of the corresponding part from among the data registered in advance in the component outline storage section 12 into a temporary storage section (not shown). This data is drawing data that constitutes the external shape of the part, and is shown in Figure 6(a).
As shown in the figure, the starting point, ending point, coordinates, center point, radius, starting point angle, ending point angle, etc. of the line segment are displayed for each part.

Next, according to the coordinates designated by the coordinate input device 2, the data taken into the -time storage section is stored in the assembly drawing data storage section 13 in units of parts as shown in FIG. 6(b). The display on the CRT display device 3 and the output to the block 4 are converted into an image take by the input/output control section 10 based on the data stored in the assembly drawing data storage section 13 and output.

In addition, if a part is incorrectly mounted due to operator error, the operator should input a delete command from keyboard 1,
By specifying the corresponding part using the coordinate human power device 2 such as a mouse, it is possible to delete the corresponding part. In the case of this deletion, the data of the part stored in the assembly drawing data storage section 13 is deleted.

The printed circuit board assembly diagram created in this manner is output from the block 4 as a diagram as shown in FIG. 3, and is used for external inspection of the printer I/board assembly, etc.

[Problem to be solved by the invention]

However, the above-mentioned printed circuit board assembly diagram creating apparatus has a problem in that it is not easy to create Bunont board assembly diagrams for multiple models from one type of bare board (printed circuit board on which nothing is mounted). In other words, in actual board manufacturing, in order to reduce board design usage and bare board manufacturing costs, certain optional parts are mounted on the same hair board or not, so that the destination There are cases where printed circuit boards with different functions are assembled. In this case, there will be parts on the completed printed circuit board where no components will be mounted.

In a conventional printed circuit board assembly diagram creation device, a picture of the outline of the component is drawn at the location where the component is mounted, but nothing is drawn at the location where the component is not mounted, as shown at 109 and 110 in Fig. 3. Therefore, when a component is not mounted on an assembled printed circuit board, there is a problem in that it is not easy to determine whether it is the correct one or whether it was not mounted by the manufacturing department just by looking at the assembly drawing.

Therefore, as a countermeasure, if there is a part that has not been mounted after the completion of the assembly drawing, measures are taken such as writing a note in the margin of the assembly drawing to indicate that the part is not mounted. However, this method has the problem that it takes time and effort to write the notes, and because the notes have to be read, it cannot be instantly determined whether or not the device is installed.

The present invention has been made in view of the above points, and is intended to facilitate the work of creating assembly drawings for each type of printed circuit board when multiple types of printed circuit boards are created by changing the number of mounted components from one type of bare board. To provide a printed circuit board assembly diagram creating device which allows an operator to easily indicate whether a component is not mounted when creating an assembly diagram, and which can instantly determine unmounted components in the created assembly diagram.

[Means to solve the problem]

In order to solve the above-mentioned problems, the present invention has constructed a printer/board assembly diagram creating apparatus as follows.

In addition to the component external shape data storage section that conventional printed circuit board assembly diagram creation devices have, a component hole/pad shape take storage section is provided that stores component hole and pad shape data for each component, allowing operators to In response to an instruction indicating that the part is not mounted, the part outline data of the part is deleted from the assembly drawing data storage unit, and the shape data of the part holes and pads of the part is stored in the assembly drawing data storage unit instead. The results are now output as blocks, etc.

[Effect]

As described above, the present invention deletes the component external shape data of the part from the assembly drawing data storage section when the operator instructs that the part is not mounted, and instead stores the shape data of the part holes and pads of the part in the assembly drawing. In addition to storing the data in the storage unit, the results can be output as blocks, etc., so it is easy to draw assembly drawings when multiple types of assembly instructions are given depending on the presence or absence of options on one bare board. If you look at the assembly diagram output as a block or the like, you can recognize whether it is installed or not by looking at it.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a functional block diagram of a printed circuit board assembly diagram creating apparatus according to the present invention. In this figure, parts given the same numbers as in FIG. 4 indicate the same parts.

This printed circuit board assembly diagram creation device differs from the device shown in FIG. 4 in that, in addition to the component external shape data storage unit 12, component holes and pads that are required for mounting the component on the printed circuit board correspond to each component. The pad information storage section 14 is provided as a hole in the part for storing data.

The operation for creating an assembly diagram in this printed circuit board assembly diagram creation apparatus is also similar to the operation in the conventional apparatus described above. That is, when a component name is specified from the keyboard 1, the input/output control section 10 transfers it to the command control section 11, and the input/output control section 10 transfers this to the command control section 11.
1 imports the data of the corresponding part from among the data registered in advance in the part outline data storage part 12 into the temporary storage part, and then stores it in the time storage part according to the coordinates specified by the coordinate input device 2. The taken takes are stored in the assembly drawing data storage section 13 in units of parts, and are displayed on the CRT display device 3.
The display to the block 4 and the output to the block 4 are performed by the assembly drawing data storage unit 1.
Based on the data stored in 3, the input/output control section 10 converts it into an image take and outputs it.

Next, the component non-mounting instruction, which is a feature of the present invention, will be explained. Using this device, the operator creates an assembly drawing in which all the parts are mounted by performing operations as described in L. next,
The user inputs ``unmounted'': I cloak using the keyboard 1 or the like, and inputs the part to be left unmounted using the coordinate input device 2 such as a mouse. When the operator instructs the unmounted command and the coordinates of the part, the data of the corresponding part is deleted from the assembly drawing take storage unit 13 as in the past. 2, (a) is a diagram showing the stored contents of the assembly drawing data storage unit 13 in which all parts are completely mounted, and (b) is a diagram showing the contents of the assembly drawing data storage unit 13 in which all parts are completely mounted, and (b) is a diagram showing the contents of the assembly drawing data storage unit 13 in which all parts are completely mounted.
The memory contents with IC2 deleted are shown.

In this device, the hole of the component as shown in FIG. 8(a) is further added to the coordinates where the component was previously located.

A hole in a component stored in the pad information storage unit 14.

Information corresponding to the components IC2, . . . , IC2 is extracted from the pad information and additionally stored. Perform this deletion and addition at the same time. Block 4 of the assembly drawing obtained by this work
An example of the output is shown in Figure 5.

Immediately, as shown in FIG. 5(a), if you want to unmount the component at the position indicated by the dotted line from the assembly drawing in which all the components are mounted, input the unmounted command using the keyboard 1, etc.
The parts surrounded by dotted lines are input using a coordinate input device 2 such as a mouse. As a result, component holes 120 and pads 121 are drawn at the locations of unmounted components surrounded by dotted lines. This is extremely similar to the printed assembly when components are actually mounted on a printed circuit board and assembled, and there is no possibility of making incorrect decisions during external inspection after the board is assembled.

〔Effect of the invention〕

As explained above, according to the present invention, the following excellent effects can be obtained.

(1) In response to an operator's instruction to not mount the part, the part outline data of the part in question is deleted from the assembly drawing data storage unit, and the shape data of the part holes and pads of the part in question are stored in the assembly drawing data storage unit instead. This makes it extremely easy to create an assembly diagram when multiple types of assembly instructions are given in one go, which was impossible with conventional printed circuit board assembly diagram creation devices.

(2) In addition, in the past, unmounted parts were indicated by writing an instruction to mount or not to mount them in letters in the blank space of the assembly error, but in the present invention If it is an assembly diagram drawn by the device, it is possible to recognize whether it is installed or not at a glance.

[Brief explanation of the drawing]

FIG. 1 is a functional block diagram of the printed circuit board assembly diagram creation device of the present invention, FIG. 2 is a diagram showing an example of the configuration of a conventional printed circuit board assembly diagram creation device of this type, and FIG. 3 is an output from the block 4. FIG. 4 is a diagram showing an example of an actual assembly diagram output, and FIG. 5(a) is a functional block diagram of a conventional printed circuit board assembly diagram creation device. 6(b) is a diagram showing an example of creating an assembly diagram with and without unmounted parts by the printed circuit board assembly diagram creating apparatus of the present invention, and FIGS. A diagram showing the storage contents of the assembly drawing data storage section. FIGS. 7(a) and 7(b) are diagrams showing the storage contents of the assembly drawing data storage section, respectively.・
Coordinate input device, 3...CRT display device, 4 Plotter, 11...Command control unit, 12...Component external shape data storage unit, 13...Assembly drawing data storage unit.

Claims (1)

[Claims] It is equipped with a part outline data storage section that stores the outline data of the part, and extracts the outline data of the corresponding part from the part outline data storage part based on the mounted component name inputted from the input device and outputs the printed circuit board from the input device. The part data is stored in the assembly drawing data storage unit according to the coordinate specification of the mounting position, and after all the mounted parts are stored in the assembly drawing data storage unit, it is combined with the printed circuit board outline data to create the printed circuit board assembly drawing data. In the printed circuit board assembly diagram creation device that creates and draws printed circuit board assembly diagrams, in addition to the component external shape data storage unit, a component hole/pad shape data storage unit stores shape data of component holes and pads for each component. , and upon the operator's instruction that the part is not mounted, deletes the part outline data of the part in question from the assembly drawing data storage unit, and instead stores the shape data of the part holes and pads of the part in the assembly drawing data storage unit. A printed circuit board assembly diagram creation device characterized by being retractable.