CN115859516A - Method, device and medium for calculating labor cost of parametric modeling of sheet metal mold - Google Patents
Method, device and medium for calculating labor cost of parametric modeling of sheet metal mold Download PDFInfo
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Abstract
The invention provides a working hour cost calculation method, a device and a medium for parametric modeling of a sheet metal mould, wherein the working hour cost calculation method comprises a processing characteristic library and a processing characteristic working hour calculation rule library, and the working hour cost calculation method further comprises the following steps: identifying the processing characteristics of the sheet metal mould; judging the type of the machining feature through a machining feature library, and obtaining a configuration file of a calculation formula of the type through a machining feature man-hour calculation rule library; calculating the processing time and the processing cost of the processing characteristics according to the configuration file; calculating the total working hours according to the working hours; calculating a total cost from the processing cost; the type of machining feature includes any one or more of CNC roughing, tapping, grinding, wire cutting, CNC finishing, and polishing. According to the invention, the working hour calculation rule base of each processing characteristic is established by the parametric modeling technology based on the sheet metal mould, so that the designed mould automatically calculates the processing working hour and cost according to the processing technology of the mould and the rule, and the efficiency and the accuracy of the working hour and cost statistics of the sheet metal mould are improved.
Description
Technical Field
The invention relates to the technical field of cost calculation based on a sheet metal mould, in particular to a working hour cost calculation method, a working hour cost calculation device and a working hour cost calculation medium for parametric modeling of the sheet metal mould.
Background
In today with increasingly competitive market, cost accounting is not only the basis for product market pricing, but also the basis for controlling cost to obtain competitive advantage. Most of enterprises are limited by conditions, simplified accounting is still performed according to the traditional cost accounting method, the traditional cost accounting method is old, the apportionment method is simple, the cost accounting error is large, the accuracy of enterprise production cost accounting is influenced, and the requirement of enterprise survival development is difficult to adapt. Therefore, how to select a proper cost calculation method and construct a cost calculation mode adaptive to the production characteristics has very important significance on the operation development of enterprises by effectively calculating the production cost.
In conclusion, after the design of the sheet metal mold is completed, the processing time and the cost are very important for enterprises, and the traditional man-hour calculation method is mainly based on manual statistics, so that the efficiency is low, the time consumption is long, and the accuracy is low. Therefore, a labor hour and cost calculation method for parametric modeling of the sheet metal mold is needed, and is based on the development of an NX7.5 platform, so as to realize typical and accurate labor hour and cost calculation of the sheet metal mold.
Disclosure of Invention
In order to overcome the above disadvantages of the prior art, the present invention provides a method, an apparatus and a medium for calculating the labor cost of parametric modeling of a sheet metal mold, so as to solve the above problems.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the labor hour cost calculation method for parametric modeling of the sheet metal mould comprises a processing characteristic library and a processing characteristic labor hour calculation rule library, and further comprises the following steps:
identifying the processing characteristics of the sheet metal mould;
judging the type of the machining features through a machining feature library, and obtaining a configuration file of a calculation formula of the type through a machining feature working hour calculation rule library;
calculating the processing time and the processing cost of the processing characteristics according to the configuration file;
calculating the total working hours according to the working hours; calculating a total cost from the processing cost;
the types of machining features include any one or more of CNC roughing, tapping, grinding, wire cutting, CNC finishing and polishing.
As a further improvement of the invention: the calculation of the working hours of the CNC rough machining comprises the following steps:
acquiring all machining positions of CNC rough machining;
selecting a CNC rough machining mode according to whether the hole in the machining position is a round hole or not and the length and the width of the minimum containing body of the milling surface;
selecting the type of a cutter according to the machining mode of CNC rough machining;
calculating the rough opening area or rough opening volume of CNC rough machining or program identification depth;
and acquiring corresponding coefficients and a calculation formula through the configuration file to calculate the machining working hours of the CNC rough machining.
As the invention further improvement: the working hour calculation of the tapping process comprises the following steps:
acquiring all processing positions of tapping processing;
selecting a processing resource according to the specification of the screw thread on the processing position;
counting the number of various processing resource types;
and obtaining corresponding processing speed and a calculation formula through the configuration file to calculate the processing working hours of tapping processing.
As a further improvement of the invention: the working hour calculation of the grinding machine processing comprises the following steps:
acquiring all processing positions processed by the grinding machine;
selecting the type of the processed part according to the size and the material of the processed template and whether a thick film thickness surface is needed;
counting the number of various types of processing parts;
and obtaining corresponding processing speed, calculation formula and coefficient through the configuration file to calculate the processing working hours of tapping processing.
As a further improvement of the invention: the man-hour calculation of the wire cutting process comprises the following steps:
acquiring all processing positions of wire cutting processing;
selecting a processing mode according to the area and the inclination angle of the processing position;
and obtaining corresponding feeding speed, coefficient and calculation formula through the configuration file to calculate the machining time of the wire cutting machining.
As a further improvement of the invention: the calculation of the CNC finishing working hours comprises the following steps:
acquiring all machining positions of CNC finish machining;
selecting the type of a first opening rough cutter according to the type of the processed part, whether the part is a hard material or not and the length and the width of the part;
judging the type of the processing surface according to the relation between the processing surface at the position and the XOY plane or the angle of the side surface;
and obtaining the corresponding feeding speed, coefficient and calculation formula through the configuration file to calculate the machining working hours of CNC finish machining.
As a further improvement of the invention: the man-hour calculation of the polishing process includes:
acquiring all positions of polishing;
determining the type of the profile feature according to the Ra size, whether the material is subjected to heat treatment, the area of the position, whether the position is a plane or not and the inclination angle; wherein Ra is the surface roughness;
and obtaining the corresponding polishing speed, coefficient and calculation formula according to the configuration file to calculate the machining working hours of CNC finish machining.
As a further improvement of the invention: the "calculating the total man-hours according to the working man-hours" includes:
generating or updating a list of processing man-hour of each part in the system;
acquiring the processing working hours of each processing mode of each part according to the list;
and summarizing the processing working hours of the parts to obtain the total processing working hours of the whole set of the die.
The "calculating the total cost according to the processing cost" includes:
calculating the processing cost of each part according to the single piece of each processing mode of each part;
and summarizing the processing cost of each part to obtain the processing total cost of the whole set of die structure.
A computer device comprising a processor and a memory, wherein: the memory stores a computer program which, when executed by the processor, implements the labor cost calculation method for parametric modeling of a sheet metal mold as set forth in any one of the above.
A computer-readable medium having stored thereon a computer program, wherein: when being executed by a controller, the computer program realizes the labor cost calculation method for the parametric modeling of the sheet metal mould.
Compared with the prior art, the invention has the beneficial effects that:
the invention automatically calculates the processing working hours and cost according to the rules of the designed die according to the processing technology of the die by the parametric modeling technology based on the sheet metal die and establishing the working hour calculation rule base of each processing characteristic, lays a foundation for cost accounting and control of enterprises, the method not only can clearly and comprehensively reflect expenditure budget, effectively improve the capability of enterprise preposed management and control cost, but also save the time cost of personnel statistics of the die, and improve the working hours of the sheet metal die and the efficiency and accuracy of cost statistics.
Drawings
Fig. 1 is a general flow diagram of the present invention.
FIG. 2 is a schematic diagram of a CNC rough machining labor hour calculation process according to the present invention.
Fig. 3 is a schematic view of the tapping man-hour calculation process according to the present invention.
FIG. 4 is a schematic diagram of the work time calculation process of the grinding machine according to the present invention.
FIG. 5 is a schematic diagram of the calculation process of the thread cutting man-hour according to the present invention.
FIG. 6 is a schematic diagram of a CNC finishing man-hour calculation process according to the present invention.
FIG. 7 is a schematic diagram illustrating a calculation process of polishing man-hour according to the present invention.
FIG. 8 is a flow chart illustrating the total man-hour calculation according to the present invention.
Fig. 9 is a schematic diagram of the total cost calculation flow of the present invention.
Detailed Description
The invention will now be further described with reference to the following description and examples in conjunction with the accompanying drawings:
the first embodiment is as follows:
the embodiment provides a working hour cost calculation method for parametric modeling of a sheet metal mold as shown in fig. 1, where the working hour cost calculation method includes a processing feature library and a processing feature working hour calculation rule library, and further includes:
identifying the processing characteristics of the sheet metal mould;
judging the type of the machining features through a machining feature library, and obtaining a configuration file of a calculation formula of the type through a machining feature working hour calculation rule library;
calculating the processing time and the processing cost of the processing characteristics according to the configuration file;
calculating the total working hours according to the working hours; calculating a total cost from the processing cost;
the type of machining feature includes any one or more of CNC roughing, tapping, grinding, wire cutting, CNC finishing, and polishing.
In the first embodiment, the machining feature types are classified from the angle of machining of the sheet metal die, the working hour cost calculation rule of each machining feature is established, and the sheet metal die machining working hour cost calculation module with accuracy in identification and strong expansibility is developed. Therefore, according to the first embodiment, each function can be split according to the design method, each function completes an independent task, and the user interacts with the functions to complete the calculation of the labor hour cost.
Example two:
the embodiment provides a working hour cost calculation method for parametric modeling of a sheet metal mold as shown in fig. 2, where the working hour cost calculation method includes a processing feature library and a processing feature working hour calculation rule library, and further includes:
identifying the processing characteristics of the sheet metal mould;
judging the type of the machining feature through a machining feature library, and obtaining a configuration file of a calculation formula of the type through a machining feature man-hour calculation rule library;
calculating the processing time and the processing cost of the processing characteristics according to the configuration file;
calculating the total working hours according to the working hours; calculating a total cost from the processing cost;
as shown in fig. 2, in the present embodiment, according to the first embodiment, the type of the machining feature is determined as CNC rough machining, and the calculating of the working hours of the CNC rough machining includes:
acquiring all machining positions of CNC rough machining;
selecting a CNC rough machining mode according to whether the hole in the machining position is a round hole or not and the length and the width of the minimum containing body of the milling surface;
selecting the type of a cutter according to the machining mode of CNC rough machining;
calculating the rough opening area or rough opening volume of CNC rough machining or program identification depth;
and acquiring corresponding coefficients and a calculation formula through the configuration file to calculate the machining working hours of the CNC rough machining.
Therefore, when the CNC rough machining working hours are calculated, the system program automatically identifies all the CNC rough machining positions of the model, automatically carries out tool matching information according to the sizes of the holes and the grooves and calculates the machining working hours according to rules.
Firstly, judging whether a round hole is machined; if so, processing the machining mode according to the drilling, matching the corresponding cutter according to the diameter, identifying the depth by the program, then calculating the machining man-hour according to the configuration file of the drilling time, and ending the program.
If the machined circular hole is not the circular hole, judging whether the length and the width of the minimum inclusion of the milling surface are both larger than or equal to 100mm; if the length and the width of the minimum inclusion body of the milling surface are both less than 100mm; the machining mode is calculated according to the cavity roughing removal volume, then the most general effective value theory in each minimum containing body in the roughing body of the current part is calculated, wherein the diameter of the cutter is equal to the effective width divided by 1.5 (namely, one calculation is made for the diameter of the cutter), then the program matches the closest cutter according to the theoretical diameter of the cutter to be used as the first cutter for roughing, then the program calculates the roughing volume, and the machining time is calculated according to a calculation formula and coefficients obtained from a configuration file.
When the length and the width of the minimum inclusion body of the milling surface are judged to be more than or equal to 100mm; the processing mode is rough-processing according to the outline; then judging whether the minimum container height is less than or equal to 40mm. If the diameter is less than or equal to 40mm, using a cutter D12R1-L60-H80; if the height of the minimum container is more than 40mm, using a cutter D32R2-L83-H150; after the tool is selected, the program calculates the rough area, calculates the working hours according to the calculation formula and the coefficient obtained from the configuration file, and outputs the result.
Example three:
the embodiment provides a working hour cost calculation method for parametric modeling of a sheet metal mold as shown in fig. 3, where the working hour cost calculation method includes a processing feature library and a processing feature working hour calculation rule library, and further includes:
identifying the processing characteristics of the sheet metal mould;
judging the type of the machining features through a machining feature library, and obtaining a configuration file of a calculation formula of the type through a machining feature working hour calculation rule library;
calculating the processing time and the processing cost of the processing characteristics according to the configuration file;
calculating the total working hours according to the working hours; calculating a total cost from the processing cost;
as shown in fig. 3, in the present embodiment, based on the first embodiment, the type of the identified processing feature is tapping processing, and the calculating of the working hours of the tapping processing includes:
acquiring all processing positions of tapping processing;
selecting processing resources according to the specification of the thread on the processing position;
counting the number of various processing resource types;
and obtaining corresponding processing speed and a calculation formula through the configuration file to calculate the processing working hours of tapping processing.
Therefore, when the tapping man-hour is calculated, the program automatically identifies the hole positions of all the threads of the model, and automatically carries out cutter matching information and calculates the processing man-hour according to the rule according to the size and the depth of the thread hole.
Firstly, the screw thread specification is divided into four grades, namely the screw thread specification is less than or equal to M4, the screw thread specification is more than M4 and less than or equal to M16, the screw thread specification is more than M16 and less than or equal to M28, and the screw thread specification is more than M28. When the specification of the screw thread is less than or equal to M4, the processing resource is manual tapping; when the screw specification is more than M4 and less than or equal to M16, the processing resource is a tapping machine; when the specification of the thread is more than M16 and less than or equal to M28, the processing resource is the rocker drill; and when the M28 is less than the thread specification, the machining resource is CNC machine tool machining.
After the specification of the thread and the processing resources are determined, the number of various types of processing resources is counted, then the processing speed is obtained according to the configuration file, the processing working hour is calculated, and the result is output.
Example four:
the embodiment provides a working hour cost calculation method for parametric modeling of a sheet metal mold as shown in fig. 4, where the working hour cost calculation method includes a processing feature library and a processing feature working hour calculation rule library, and further includes:
identifying the processing characteristics of the sheet metal mould;
judging the type of the machining features through a machining feature library, and obtaining a configuration file of a calculation formula of the type through a machining feature working hour calculation rule library;
calculating the processing time and the processing cost of the processing characteristics according to the configuration file;
calculating the total working hours according to the working hours; calculating a total cost from the processing cost;
as shown in fig. 4, in this embodiment, based on the first embodiment, the type of the identified processing feature is grinding machine processing, and the calculating of the processing time of the grinding machine processing includes:
acquiring all processing positions processed by a grinding machine;
selecting the type of the processed part according to the size and the material of the processed template and whether a thick film thickness surface is required;
counting the number of various types of processing parts;
and obtaining corresponding processing speed, calculation formula and coefficient through the configuration file to calculate the processing working hours of tapping processing.
Therefore, when the working hours of the grinding machine are calculated, the program automatically identifies all the machining surfaces of the grinding machine of the model, and the working hours of the machining are automatically calculated according to the configuration file according to the material and the size of the template.
Firstly, judging whether the length of a part is more than or equal to 200mm; if the size is less than 200mm, the part type is a small sheet metal part, counting the number of the surfaces, and calculating according to 0.25 hour of each surface;
when the length of the part is larger than or equal to 200mm, firstly, judging whether a thickness surface needs to be ground or not, if the thickness surface does not need to be ground, counting the number of the surfaces if the type of the part is a large plate side, and then calculating according to 0.5 hour of each surface;
if the length of the part of the material is more than or equal to 200mm and the thickness of the part needs to be ground, judging whether the material is quenched or not; if not, the part type is a soft material large plate; if quenching is needed, the type of the part is a hard material large plate; then counting the number of various types of processing parts, obtaining the processing speed according to the configuration file, calculating a formula and a coefficient, calculating the processing working hour according to one hour if the processing working hour is less than one hour, calculating the processing working hour according to the actual hour if the processing working hour is more than one hour, and outputting a working hour result.
Example five:
the embodiment provides a working hour cost calculation method for parametric modeling of a sheet metal mold as shown in fig. 5, where the working hour cost calculation method includes a processing feature library and a processing feature working hour calculation rule library, and further includes:
identifying the machining characteristics of the sheet metal mould;
judging the type of the machining features through a machining feature library, and obtaining a configuration file of a calculation formula of the type through a machining feature working hour calculation rule library;
calculating the processing time and the processing cost of the processing characteristics according to the configuration file;
calculating the total working hours according to the working hours; calculating a total cost from the processing cost;
as shown in fig. 5, in the present embodiment, the type of the determined machining feature is wire cutting machining, and the calculation of the working hours of the wire cutting machining includes:
acquiring all processing positions of wire cutting processing;
selecting a processing mode according to the area and the inclination angle of the processing position;
and obtaining corresponding feeding speed, coefficient and calculation formula through the configuration file to calculate the processing time of the wire cutting processing.
Therefore, when calculating the wire cutting man-hour, the program automatically recognizes all the wire cutting processing positions of the model, and automatically calculates the processing man-hour according to the profile rule based on the area and the inclination angle of the wire cutting part.
Firstly, judging whether the hole is a round hole; when the type of machining was round holes and the diameter was > 6 and the thickness was > 45, each hole was counted for 20 minutes.
When the processing type is not the round hole, judging whether the inclination is less than 10 degrees; if the angle is less than 10 degrees, cutting the inclined plane according to the characteristics and cutting one knife; if the inclination is more than or equal to 10 degrees, the user can automatically modify the processing modes, and five processing modes such as one-cut two-cut, one-cut three-cut, one-cut four-cut, one-cut five-cut and the like can be selected respectively. (cutting one trimming means that after a cutting is finished, a trimming edge is corrected according to the original path, and the like.) after the machining mode is determined, the feeding speed, the coefficient and the calculation formula are obtained according to the configuration file, and finally, the man-hour output result is calculated.
Example six:
the embodiment provides a method for calculating the labor hour cost of parametric modeling of a sheet metal mold, as shown in fig. 6, where the method includes a processing feature library and a processing feature labor hour calculation rule library, and further includes:
identifying the machining characteristics of the sheet metal mould;
judging the type of the machining features through a machining feature library, and obtaining a configuration file of a calculation formula of the type through a machining feature working hour calculation rule library;
calculating the processing time and the processing cost of the processing characteristics according to the configuration file;
calculating the total working hours according to the working hours; calculating a total cost according to the processing cost;
as shown in fig. 6, in the present embodiment, based on the first embodiment, the type of the determined machining feature is CNC static machining, and the calculating of the CNC static machining time includes:
acquiring all machining positions of CNC finish machining;
selecting the type of a first open roughing cutter according to the type of the processed part, whether the part is a hard material or not and the length and width of the part;
judging the type of the processing surface according to the relation between the processing surface at the position and the XOY plane or the angle of the side surface;
and obtaining the corresponding feeding speed, coefficient and calculation formula through the configuration file to calculate the machining working hours of CNC finish machining.
Therefore, when calculating the CNC finish machining working hours, the program automatically recognizes all finish machining positions of the model, and according to the shape and the size of the finish machining positions, the program automatically carries out the tool matching information and calculates the machining working hours according to rules.
Firstly, the types of the processed parts are judged, and the total types of the parts are four ABCD types. And after the type is judged, judging whether the material is hard material.
If the material is hard material; judging whether the length and the width of the part are larger than or equal to 300mm at the same time; if so, using a first roughing cutter to be D16R1.1-50-H150-roughing hard mill. If the length and the width of the part are not equal to or larger than 300mm at the same time, judging whether the length and the width of the part are equal to or larger than 100 x 100; if so, the first roughing cutter is D10R1.1-41-H70-roughing-T1; if not, the first rough cutting knife is D8R1.1-36-H60-rough-T2.
If the material to be processed is not a hard material; judging whether the length and the width of the part are more than or equal to 300 x 300; if so, the first rough opening knife is D25R0.8-25-H160; if not, the first opening rough knife is D12R1-51-H80.
After the first rough cutter is selected, judging whether the machining plane is parallel to the X oy plane; if the parallel, the processing surface is a plane; if not, judging whether the side surface is vertical to the X oy plane; if so, the processing surface is a plane; if not, judging whether the angle between the side face and the X oy plane is larger than or equal to 55 degrees; if so, judging the surface to be a steep surface; if not, the surface is determined to be flat. And then obtaining the feeding speed, the coefficient and a calculation formula according to the configuration file, finally calculating the working hours according to the formula, and outputting the result.
Example seven:
the embodiment provides a method for calculating the labor hour cost of parametric modeling of a sheet metal mold, as shown in fig. 7, where the method includes a processing feature library and a processing feature labor hour calculation rule library, and further includes:
identifying the processing characteristics of the sheet metal mould;
judging the type of the machining features through a machining feature library, and obtaining a configuration file of a calculation formula of the type through a machining feature working hour calculation rule library;
calculating the processing time and the processing cost of the processing characteristics according to the configuration file;
calculating the total working hours according to the working hours; calculating a total cost from the processing cost;
as shown in fig. 7, in the present embodiment, based on the first embodiment, the type of the determined machining feature is polishing, and the calculation of the working hours of the polishing includes:
acquiring all positions of polishing;
determining the profile feature type according to the Ra size, whether the material is subjected to heat treatment, the area of the position, whether the material is a plane and the inclination angle; where Ra is the surface roughness, i.e., the polishing grade.
And obtaining a corresponding polishing speed, coefficient and a calculation formula according to the configuration file to calculate the machining working hours of CNC finish machining.
Therefore, when the polishing working hours are calculated, the program automatically identifies all the positions of the model needing polishing, and the working hours are automatically calculated according to the configuration file according to the polishing area and the roughness.
Firstly, judging whether Ra is less than or equal to 0.1; if the Ra is less than or equal to 0.1, calculating the Ra as 0.1; if Ra > 0.1, then calculate as 0.4.
And then judging whether the material is subjected to heat treatment, wherein the material is a hard material after the heat treatment, and the material is a soft material without the heat treatment. Secondly, when the area is larger than 9000mm, if the profile is a plane and the inclination angle is smaller than 10 degrees, the profile characteristic type is a flat surface; if the area is less than or equal to 9000mm or not plane or the inclination angle is less than or equal to 10 degrees, the profile characteristic type is a profile. And after judging the characteristic type of the profile, acquiring the polishing speed and coefficient according to the configuration file, acquiring a calculation man-hour formula according to the configuration file, calculating the man-hour according to the calculation formula, and outputting a result.
Example eight:
the embodiment provides a method for calculating the labor-hour cost of parametric modeling of a sheet metal mold, as shown in fig. 1 and 8-9, wherein the method comprises a processing feature library and a processing feature labor-hour calculation rule library, and further comprises the following steps:
identifying the machining characteristics of the sheet metal mould;
judging the type of the machining features through a machining feature library, and obtaining a configuration file of a calculation formula of the type through a machining feature working hour calculation rule library;
calculating the processing time and the processing cost of the processing characteristics according to the configuration file;
calculating the total working hours according to the working hours; calculating a total cost from the processing cost;
the types of the processing features include any one or more of CNC rough machining, tapping, grinding, wire cutting, CNC finish machining and polishing, and the calculation manner of each type corresponds to the first to seventh embodiments.
In the present embodiment, as shown in fig. 8, the "total man-hours calculated based on the processing man-hours" includes:
generating or updating a list of processing man-hour of each part in the system;
acquiring the processing working hours of each processing mode of each part according to the list;
and summarizing the processing working hours of the parts to obtain the total processing working hours of the whole set of die.
Therefore, when calculating the total man-hour, the whole set of mold processing man-hours is obtained by summarizing the processing man-hours of each part. And generating or updating a list of the processing working hours of each part, then listing the total working hours of each processing mode of each part, and finally summarizing the total working hours of the processing of each part to obtain the total processing working hours of the whole set of mould structure.
As shown in fig. 9, the "total cost calculated from the processing cost" includes:
calculating the processing cost of each part according to the single piece of each processing mode of each part;
and summarizing the processing cost of each part to obtain the processing total cost of the whole set of die structure.
Therefore, when calculating the total cost, the entire set of mold processing costs is obtained from the processing man-hours of each part and the individual pieces of each processing man-hour thereof. Firstly, calculating the total processing cost of each part according to a single piece of each processing mode, and then summarizing the total cost of each part to obtain the total processing cost of the whole set of die structure.
Example nine:
the present embodiment provides a computer device, comprising a processor and a memory, wherein: the memory stores a computer program, and the computer program is executed by the processor to implement the labor cost calculation method for parametric modeling of the sheet metal mold according to any one of the first to eighth embodiments.
Example ten:
the present embodiment provides a computer-readable medium having stored thereon a computer program, wherein: when executed by the controller, the computer program implements the labor cost calculation method for parametric modeling of the sheet metal mold according to any one of the first to eighth embodiments.
The main functions of the invention are as follows:
1. providing a labor hour cost calculation method based on parametric modeling of a sheet metal mould, combining sheet metal mould design and processing labor hour cost to complete system scheme design;
2. researching a sheet metal die machining working hour calculation method, classifying the machining characteristics of the sheet metal die, establishing a working hour cost calculation method for each machining characteristic, and developing a sheet metal die machining working hour calculation method with accurate calculation and strong expansibility;
3. researching a key technology for calculating the machining time of the sheet metal mould, wherein the key technology comprises a storage and management method of complex machining characteristics in the mould; realizing the functions of the system based on a parametric modeling technology; establishing a working hour calculation rule of typical sheet metal die machining characteristics;
4. and completing system development on NX7.5, testing an application example by using the developed system, comparing system statistics with manual statistics based on a test result, and verifying the practicability of the system.
In summary, after reading the present disclosure, those skilled in the art can make various other corresponding changes without creative mental labor according to the technical solutions and concepts of the present disclosure, and all of them are within the protection scope of the present disclosure.
Claims (10)
1. The labor hour cost calculation method for parametric modeling of the sheet metal mold is characterized by comprising a processing characteristic library and a processing characteristic labor hour calculation rule library, and further comprising the following steps of:
identifying the processing characteristics of the sheet metal mould;
judging the type of the machining feature through a machining feature library, and obtaining a configuration file of a calculation formula of the type through a machining feature man-hour calculation rule library;
calculating the processing time and the processing cost of the processing characteristics according to the configuration file;
calculating the total working hours according to the working hours; calculating a total cost from the processing cost;
the types of machining features include any one or more of CNC roughing, tapping, grinding, wire cutting, CNC finishing and polishing.
2. The method for computing the labor hour cost of parametric modeling of the sheet metal mold according to claim 1, wherein the computing the labor hour of CNC rough machining comprises:
acquiring all machining positions of CNC rough machining;
selecting a CNC rough machining mode according to whether the hole in the machining position is a round hole or not and the length and the width of the minimum containing body of the milling surface;
selecting the type of a cutter according to the machining mode of CNC rough machining;
calculating the rough area or rough volume of CNC rough machining or program identification depth;
and acquiring corresponding coefficients and a calculation formula through the configuration file to calculate the machining time of CNC rough machining.
3. The method for calculating the labor hour cost of parametric modeling of the sheet metal mold according to claim 1, wherein the labor hour calculation of the tapping process comprises:
acquiring all processing positions of tapping processing;
selecting processing resources according to the specification of the thread on the processing position;
counting the number of various processing resource types;
and obtaining corresponding processing speed and a calculation formula through the configuration file to calculate the processing working hours of tapping processing.
4. The method for calculating the labor hour cost of parametric modeling of the sheet metal mold according to claim 1, wherein the calculation of the machining labor hour of the grinding machine comprises:
acquiring all processing positions processed by the grinding machine;
selecting the type of the processed part according to the size and the material of the processed template and whether a thick film thickness surface is required;
counting the number of various types of processing parts;
and obtaining corresponding processing speed, calculation formula and coefficient through the configuration file to calculate the processing working hours of tapping processing.
5. The method for calculating the labor hour cost of parametric modeling of the sheet metal mold according to claim 1, wherein the labor hour calculation of the wire cutting process comprises:
acquiring all processing positions of wire cutting processing;
selecting a processing mode according to the area and the inclination angle of the processing position;
and obtaining corresponding feeding speed, coefficient and calculation formula through the configuration file to calculate the machining time of the wire cutting machining.
6. The labor-hour cost calculation method for parametric modeling of sheet metal molds according to claim 1, wherein the labor-hour calculation for CNC finish machining comprises:
acquiring all machining positions of CNC finish machining;
selecting the type of a first opening rough cutter according to the type of the processed part, whether the part is a hard material or not and the length and the width of the part;
judging the type of the processing surface according to the relation between the processing surface at the position and the XOY plane or the angle of the side surface;
and obtaining the corresponding feeding speed, coefficient and calculation formula through the configuration file to calculate the machining working hours of CNC finish machining.
7. The method for calculating the labor hour cost for parametric modeling of the sheet metal mold according to claim 1, wherein the labor hour calculation for the polishing process comprises:
acquiring all positions of polishing;
determining the type of the profile feature according to the Ra size, whether the material is subjected to heat treatment, the area of the position, whether the position is a plane or not and the inclination angle; wherein Ra is the surface roughness;
and obtaining the corresponding polishing speed, coefficient and calculation formula according to the configuration file to calculate the machining working hours of CNC finish machining.
8. The labor hour cost calculation method for parametric modeling of sheet metal mold according to claim 1, wherein the "calculating total labor hours according to processing labor hours" includes:
generating or updating a list of processing working hours of each part in the system;
acquiring the processing working hours of each processing mode of each part according to the list;
summarizing the processing working hours of the parts to obtain the processing total working hours of the whole set of the die;
the "calculating the total cost according to the processing cost" includes:
calculating the processing cost of each part according to the single piece of each processing mode of each part;
and summarizing the processing cost of each part to obtain the processing total cost of the whole set of die structure.
9. A computer device comprising a processor and a memory, wherein: the memory stores a computer program which, when executed by the processor, implements a man-hour cost calculation method for parametric modeling of a sheet metal mold as recited in any one of claims 1 to 8.
10. A computer-readable medium having stored thereon a computer program, characterized in that: the computer program when executed by a controller implements a labor-time cost calculation method for parametric modeling of a sheet metal mold as recited in any one of claims 1 to 8.
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| CN117635756A (en) * | 2024-01-24 | 2024-03-01 | 珠海格力精密模具有限公司 | Automatic generation method, system and device for sheet metal die two-dimensional map and storage medium |
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