CN104850722B - A kind of CAPP process automatically generates and update system and method - Google Patents

Abstract

The present invention is a system and method for automatically generating and updating CAPP process dimensions. The system includes a CPU and a process dimension database (2) connected with electrical signals, a process dimension picking module (3), a process dimension inserting module (5), and a process dimension database (2). An update module (6), a process size storage module (4) connected to the signal output end of the process size pick-up module, and an associated size display module (7) connected to the signal output end of the art size update module. The method comprises the steps of the CPU calling a process size picking module, a process size storage module, a process size insertion module, a process size update module and an associated size display module, because the process size is displayed in the form of a hyperlink in the CAPP process card of the word document, when the process When the size changes, it can be automatically updated, which eliminates the workload of the craftsman to find the craft size, improves work efficiency, and reduces the error rate of the craft size in the craft card.

Description

A system and method for automatically generating and updating CAPP process dimensions

technical field

The present invention relates to the field of CAPP (Computer Aided Process Planning, computer-aided process design), in particular, relates to a CAPP process size automatic generation and update system based on SolidWorks, and based on the system, the present invention also provides a CAPP-based A method for automatically generating and updating process dimensions of the system.

Background technique

Computer-aided process design is the process of completing the process steps required in the process of parts from blank to finished product by computer.

From a narrow point of view, CAPP is designed for the mechanical processing process of parts and outputs process regulations. From a broad point of view, however, CAPP includes process design and the management of process design processes and activities. The process of process design not only produces the process specification of parts, but also provides information and data such as manufacturing feasibility, processing cost analysis, and assemblability for product design based on concurrent engineering; it provides man-hour quota, material quota, tooling list for ERP and other systems Basic manufacturing data such as process route table; provide the computer-aided quality inspection system with the content and requirements of quality inspection items such as machining accuracy, roughness, shape and position tolerance, etc., and the computer-aided quality inspection system automatically generates the process quality inspection plan of the parts.

In the process of using CAPP to compile process cards, when describing the process, it is necessary to involve specific process size values. At present, the mainstream CAPP software can customize its own templates in terms of process card templates. Most of the card content is mainly manual input, supplemented by selection from the standard process resource library. But because of this, some dimensions in the process content are also reflected in the form of ordinary text, and there is no connection between the process model and the process dimensions in the process card. When the size changes, it is necessary to manually modify the size one by one to update the file, which is heavy, tedious and error-prone.

The existing CAPP technology cannot establish the connection between the process size in the process model and the process size data text in the process card content, so when the process size changes, it is necessary to manually find the process size in the process card and manually modify it. The technicians found that this process requires the craftsman to be familiar with the content of the craft card, and carefully search for the position of the craft size, so as not to miss it. This leads to a tedious and error-prone work for process dimension update. Especially when a certain size is quoted in the process card for many times, it is more obvious.

Contents of the invention

The technical problem solved by the present invention is to provide a system and method for automatically generating and updating the process size of CAPP based on SolidWorks to improve the efficiency of process size update and reduce the error rate.

The present invention solves its technical problem and adopts the following technical solutions:

A system for automatically generating and updating CAPP process dimensions provided by the present invention is a system for automatically generating and updating CAPP process dimensions based on SolidWorks. The system includes: a CPU and a process dimension database connected to it with electrical signals, and a process dimension picking module , a process size inserting module, a process size update module, a process size storage module connected to the signal output end of the process size pick-up module, and an associated size display module connected to the signal output end of the process size update module.

The process size database is mainly used to store the size information of the picked-up SolidWorks model, and its signal output terminal is connected to the CPU.

The process size picking module is used to pick up the size in the SolidWorks model, its signal input end is connected with the signal output end of the CPU, and its signal output end is connected with the process size storage module.

The process dimension storage module is used to store the dimensions picked up by the process dimension picking module into the process dimension database, its signal input end is connected to the signal output end of the process dimension picking module, and its signal output end is connected to the process dimension database.

The process size insertion module is used to insert the process size in the process size database into the word document in the form of a hyperlink, its signal input end is connected with the signal output end of the CPU, and its signal output end is output to the word document, which is system output.

The process size update module is used to update the changed process size in the process size database in the word document, its signal input end is connected with the signal output end of the CPU, and its signal output end is connected with the associated size display module.

The associated size display module is used to highlight the process size associated with the changed process size in the word document, which is convenient for technicians to check. Its signal input terminal is connected with the process size update module, and its signal The output end is output to a word document, which is the system output.

The method for automatically generating and updating CAPP process dimensions provided by the present invention is a method for automatically generating and updating CAPP process dimensions based on SolidWorks. The method includes the following steps:

Step 1, the CPU calls the process size picking module;

Step 2, the CPU calls the process size storage module, and stores the process size picked up by the process size picking module into the process size database;

Step 3, after the storage is completed, the process size database sends a feedback message to the CPU, informing it that the storage has been completed;

Step 4, the CPU invokes the process dimension insertion module, and inserts the process dimensions in the process dimension database into the word document;

Step 5, when the process size changes, repeat steps 1 to 3 to pick up and store the new size into the process size database;

Step 6, the CPU invokes the process dimension update module, and replaces the old dimension with the new dimension in the word document;

Step 7, the CPU calls the associated size display module, and in the word document, the size associated with the process size is highlighted to remind the process personnel to pay attention;

Through the above steps, the automatic generation and update of the CAPP process dimensions are realized.

In the above step 4, the technological dimensions in the technological dimension database are inserted into the word document in the form of hyperlinks.

In the above step 5, when the picked size changes, all positions in the word document that refer to the size are automatically updated through the process size update module, rather than manually modified or updated by other methods.

Compared with the prior art, the present invention has the following main advantages:

1. The size is generated in the following way: pick it up from SolidWorks, and then insert it into the corresponding position of the CAPP process card. This method can insert the dimensions into the CAPP process card in word document format as a whole in the form of a hyperlink, and does not require manual input by the craftsman, thereby avoiding mis-input. Taking a certain craft size quoted 5 times in the craft card as an example, the test shows that after a certain period of training, the overall time for craftsmen to pick up a craft dimension is about 3 seconds, and the time for inserting a craft dimension is about 1 second minutes, that is, the overall required time is: 3+1×5=8 seconds. It takes about 1 second to manually input a process size, and 5 seconds to input 5 process sizes. The difference between the method and the method of the present invention lies in the step of picking the size. However, if a size is entered incorrectly for some reason, the time to modify it is about 1 second. There is little difference in the time required to generate the size between the two methods.

2. When a certain size changes, you only need to pick up the size again in SolidWorks, and then refresh all the places where the size is used through the process size finer module, without manually modifying it one by one in the CAPP process card. In this way, the work intensity of the craftsman can be reduced, the dependence on the proficiency of the craftsman can be reduced, and there will be no situation where some places that are used in this size are modified and some places are missed, which improves the work efficiency of modifying the size and accuracy, greatly reducing the error rate. The test shows that no matter how many times a certain size is referenced in the craft card, the time to pick up the size again is about 3 seconds, and the time to refresh these sizes in the CAPP craft card is about 1 second, that is, it takes 4 seconds overall , and there will be no mistaken modification of other dimensions and omissions. But using the traditional method, craftsmen are required to read the entire craft card from beginning to end to avoid missing, and by understanding the craft content, accurately find all the references to the size and modify them one by one. Taking the general process document length of about 2-3 pages as an example, the time to read a page of process document is about 1 minute, that is, the overall modification takes 2-3 minutes, and the time will be doubled if the modification is completed and then checked again. The time required for dimensional modification by the method of the present invention is greatly reduced.

3. After modifying the process size, the size associated with the modified process size will be highlighted in the process card. Process sizes are related, and after a size changes, the size associated with it may also change. Highlighting the associated process dimensions can remind the process personnel to pay attention to and check these dimensions, avoid possible logic errors, and improve the correct rate of process dimensions. Using the traditional method to judge which dimensions are related requires reading the process model and the content of the process card together, and requires high proficiency of the process personnel. Tests show that, taking a general process document with a length of about 2-3 pages as an example, the time to read a page of process document is about 1 minute, that is, the overall judgment takes 2-3 minutes. If the judgment is completed and then checked again, the time will be reversed. times. However, the method of the present invention directly highlights all sizes related to the modified size, and the time for judging is almost zero.

In a word, the present invention can greatly improve work efficiency, and at the same time reduce the error rate of process size in process cards.

Description of drawings

Fig. 1 is the functional block diagram of the automatic generation and update system of the CAPP process size based on SolidWorks of the present invention;

Fig. 2 is the process algorithm diagram of the process size picking module 3 of the CAPP process size automatic generation and update method based on SolidWorks in the present invention;

Fig. 3 is the process algorithm diagram of the process size storage module 4 of the CAPP process size automatic generation and update method based on SolidWorks in the present invention;

Fig. 4 is the process algorithm diagram of the process size insertion module 5 of the CAPP process size automatic generation and update method based on SolidWorks in the present invention;

Fig. 5 is the process algorithm diagram of the process size update module 6 of the CAPP process size automatic generation and update method based on SolidWorks in the present invention;

6 is a flowchart algorithm diagram of the associated size display module 7 of the CAPP process size automatic generation and update method based on SolidWorks in the present invention;

In the figure: 1. CPU; 2. Process size database; 3. Process size pick-up module; 4. Process size storage module; 5. Process size insertion module; 6. Process size update module; 7. Associated size display module.

Detailed ways

The present invention will be further described below in conjunction with the embodiments and accompanying drawings.

The CAPP process size automatic generation and update system based on SolidWorks involved in the present embodiment has a structure as shown in Figure 1. Under the control of the main control program, the system includes a CPU1 and a process size database 2 connected to it with electrical signals, a process Size picking module 3, process size inserting module 5, process size update module 6, process size storage module 4 connected to the signal output end of process size picking module 3, and associated size display module connected to the signal output end of process size update module 6 7.

The CPU1 is mainly used to load relevant application programs and realize real-time control of the system. The CPU adopts the CPU of the mainstream PC in the market.

The process size database 2 is mainly used to store the size information of the SolidWorks model picked up, and its signal output terminal is connected to the CPU1. Take a low-speed shaft as an example, which has a keyway feature, including two parameters: width 10mm and length 45mm, when the two dimensions are picked, the information stored in the process dimension database 2 is "10" and "45" ; At the same time, if the model is a new model, that is, it has not been stored in the process size database 2, then the system assigns a flow ID value to the model, and also stores it in the process size database 2; If there is a corresponding flow ID value in the process size database 2, then store the newly picked size under the size corresponding to the ID value. Therefore, the structure of dimensions in process dimension database 2 is defined as follows: ID value@configuration name@sketch name@dimension name. A certain sketch under the configuration, a certain dimension under the sketch" to query in order.

The process dimension picking module 3 is used for picking the dimensions in the SolidWorks model, its signal input terminal is connected to the signal output terminal of CPU1 , and the signal output terminal is connected to the process dimension storage module 4 . As mentioned above, through the interaction between SolidWorks secondary development and SolidWorks, CPU1 calls the process size picking module 3 to pick up the two sizes of 10mm and 45mm in the low-speed shaft model;

The process size storage module 4 is used to store the size picked up by the process size picking module 3 into the process size database 2, its signal input end is connected with the signal output end of the process size picking module 3, and the signal output end is connected with the process size database 2 connected. As mentioned above, by calling the process size storage module 4, the CPU1 stores the process size 10mm and 45mm picked up by the process size picking module 3, and the process ID value generated by the system for the model into the process size database 2;

Described process size insertion module 5 is used to insert the process size in the process size database 2 into the word document in the form of a hyperlink, its signal input end is connected with the signal output end of CPU1, and the signal output end is output to the word document, namely output for the system. As mentioned above, through word secondary development to interact with the word program, CPU1 inserts the process dimensions "10mm" and "45mm" in the process dimension database 2 into the word document in the form of hyperlinks by calling the process dimension insertion module 5 middle.

The process size update module 6 is used to update the changed process size in the process size database 2 in the word document, its signal input end is connected with the signal output end of CPU1, and the signal output end is connected with the associated size display module 7 . As mentioned above, for example, 10mm is changed to 8mm, and through word secondary development to interact with the word program, CPU1 calls the process size update module 6 to replace the old size 10mm with the new size 8mm in the word document.

The associated size display module 7 is used to highlight the process size associated with the changed process size in the word document, so that the process personnel can check, and its signal input terminal is connected to the process size update module 6, The signal output terminal outputs to the word document, which is the system output. As mentioned above, through word secondary development to interact with the word program, CPU1 calls the associated size display module 7 to highlight the size 45mm associated with the process size 8mm in the word document to remind the craftsmen to pay attention . Among them, the associated dimensions are divided into the following two categories: 1. In the same model, all dimensions in a certain sketch under a certain configuration are related to each other; 2. The dimensions in the sketch defined by the ParentChildRelationship() function in the IModelDoc2 interface in SolidWorks Dimensions are related to each other in a parent-child relationship. The function of the associated display is to traverse all associated dimensions, carry out secondary development on the office program, and use the Selection() function defined in the Microsoft.Interop.Office.Word.Application interface in the Word program to display.

The method for automatically generating and updating the CAPP process size based on SolidWorks involved in the present invention takes a low-speed shaft as an example, which has a keyway feature and includes two parameters: a width of 10mm and a length of 45mm. The method includes the following steps:

Step 1, CPU1 invokes the process size picking module 3 to pick up the process sizes "10mm" and "45mm" in the low-speed shaft model, and the process algorithm is shown in Figure 2;

Step 2, CPU1 invokes the process size storage module 4, and stores the process size "10mm" and "45mm" picked up by the process size picking module 3, as well as the process ID value generated by the system for this model, into the process size database 2. The process algorithm is as follows: As shown in Figure 3;

Step 3, after the storage is completed, the process dimension database 2 sends a feedback message to CPU1, informing it that the storage has been completed;

Step 4, CPU1 invokes the process dimension insertion module 5, and inserts the process dimensions "10mm" and "45mm" in the process dimension database 2 into the word document in the form of hyperlinks. This module realizes the function of innovation point 1, the process algorithm As shown in Figure 4;

Step 5, when the process size changes, for example, 10mm becomes 8mm, repeat steps 1 to 3, pick up the new size 8mm and store it in the process size database 2;

Step 6, CPU1 invokes process size update module 6, in the word document, replaces the old size 10mm with the new size 8mm, this module realizes the function of innovation point 2, and the process algorithm is shown in Figure 5;

Step 7, CPU1 invokes the associated size display module 7, and in the word document, the size 45mm related to the process size 8mm is highlighted to remind the craftsmen to pay attention. This module realizes the function of innovation point 3. The process algorithm is as follows As shown in Figure 6;

Step 8, end.

Claims (7)

1. A kind of CAPP process size automatically generates and updates system, it is characterized in that a kind of CAPP process size based on SolidWorks automatically generates and updates system, and this system comprises: CPU and the process size database (2) that links to each other with its electric signal, process A size picking module (3), a process size inserting module (5), a process size updating module (6), a process size storage module (4) connected to the signal output of the process size picking module (3), and a process size updating module (6) The associated size display module (7) connected to the signal output terminal; The process size storage module (4) is used to store the size picked up by the process size picking module (3) into the process size database (2), and its signal input end is connected to the signal output end of the process size picking module (3) , its signal output terminal is connected with the process size database (2); Described process size insertion module (5), is used for inserting the process size in the process size database (2) into the word document in hyperlink form, its signal input end is connected with the signal output end of CPU, and its signal output end outputs to the word document, which is the system output; the process size insertion module (5) identifies and judges the type of process size, reads the basic size of the process size, reads and judges the upper and lower deviations of the process size, And according to the type of process size, add the size symbol adaptively before the basic size of the process size; The associated size display module (7) is used to highlight the process size associated with the changed process size in the word document, so that the process personnel can check, and its signal input terminal is connected with the process size update module ( 6) Connected, the signal output terminal outputs to the word document, which is the system output; the related dimensions are divided into the following two categories: 1, in the same model, all dimensions in a certain sketch under a certain configuration are related to each other; 2, The dimensions in the sketch defined by the ParentChildRelationship() function in the IModelDoc2 interface in SolidWorks are related to each other, which is a parent-child relationship; the function of the relationship display is to traverse all related dimensions, and to carry out secondary development of the office program. The Selection() function defined in the Microsoft.Interop.Office.Word.Application interface is displayed. 2. CAPP process dimension automatic generation and update system according to claim 1 is characterized in that described process dimension database (2), is mainly used in storing the dimension information of the SolidWorks model that picks up, and its signal output terminal links to each other with CPU . 3. CAPP process size automatic generation and updating system according to claim 1 is characterized in that described process size picks up module (3), is used for picking up the size in the SolidWorks model, and the signal of its signal input terminal and CPU The output terminals are connected, and the signal output terminals thereof are connected with the process size storage module (4). 4. CAPP process size automatic generation and update system according to claim 1, is characterized in that described process size update module (6), is used for the process size that has changed in the process size database (2) in word document To update, its signal input end is connected with the signal output end of the CPU, and its signal output end is connected with the associated size display module (7). 5. A CAPP process size automatically generates and updates method, is characterized in that a kind of CAPP process size based on SolidWorks automatically generates and updates method, and the method may further comprise the steps: Step 1, the CPU calls the process size picking module (3); Step 2, the CPU calls the process size storage module (4), and stores the process size picked up by the process size picking module (3) into the process size database (2); Step 3, after the storage is completed, the process size database (2) sends a feedback message to the CPU to inform that it has been stored; Step 4, CPU calls process size insertion module (5), inserts the process size in (2) in the process size database into the word document as a hyperlink; process size insertion module (5) identifies and summarizes the type of process size Judging, reading the basic size of the process size, reading and judging the upper and lower deviations of the process size, and adaptively adding a size symbol before the basic size of the process size according to the type of process size; Step 5, when the process size changes, repeat steps 1 to 3 to pick up and store the new size into the process size database (2); Step 6, the CPU invokes the process size update module (6), and in the word document, the old size is replaced with a new size; Step 7, the CPU calls the associated size display module (7), and in the word document, the size associated with the process size is highlighted to remind the process personnel to pay attention; the associated size is divided into the following two categories: 1, the same model , all dimensions in a certain sketch under a certain configuration are related to each other; 2. The dimensions in the sketch defined by the ParentChildRelationship() function in the IModelDoc2 interface in SolidWorks are related to each other, which is a parent-child relationship; the function of association display is for all Traverse the related dimensions, carry out secondary development of the office program, and use the Selection() function defined in the Microsoft.Interop.Office.Word.Application interface in the Word program to display; Through the above steps, the automatic generation and update of the CAPP process dimensions are realized. 6. CAPP process size automatic generation and updating method according to claim 5 is characterized in that in step 4, the process size in (2) in the process size database is inserted in the word document in hyperlink form. 7. CAPP process size automatic generation and updating method according to claim 5, is characterized in that in step 5, when the size of picking up changes, be to automatically all quote this in the word document by process size updating module (6) The positions of the dimensions are all updated, rather than manually modified or otherwise updated.