CN112084642A - Baseline-based machining process blanking hour calculation method - Google Patents
Baseline-based machining process blanking hour calculation method Download PDFInfo
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Abstract
The invention discloses a baseline-based method for calculating blanking time of a machining process, and relates to the technical field of digital manufacturing. After receiving a task of transferring product development to production, a manufacturing department starts to prepare production information, and at this stage, a product process baseline is established and blanking working hour data of a single machining process card is compiled. And then, when the process files are synchronized in the manufacturing baseline management module, the blanking working hour quota data is subjected to turnover calculation. The invention introduces the process baseline and the manufacturing baseline, realizes the modularized management of the blanking working hour quota of the machining process, and improves the production efficiency; on the basis, the traditional blanking working hour quota calculation process is combined with an informatization technology, so that the blanking working hour is quickly and accurately calculated by an informatization intelligent means.
Description
Technical Field
The invention relates to the technical field of digital manufacturing, in particular to a baseline-based blanking working hour calculation method for a machining process.
Background
The working hour quota is an important basis for enterprises to make reasonable quotations and assess the performance of staff. The scientific and standardized working hour quota is formulated, so that the enthusiasm of workers can be effectively mobilized, and the improvement of the technical level of the workers is promoted; on the other hand, the production efficiency of enterprises can be improved, the production potential of the enterprises is excavated to the maximum extent, and the industry competitiveness of the enterprises is increased.
For enterprises developing electronic equipment, the mechanical processing product production has the characteristics of multiple varieties and small batch, namely, the products are multiple in variety, small in quantity and variable in specification. But at present, most domestic enterprises are relatively lagged in management and calculation of blanking working hours. In terms of the management of the blanking man-hour, the modular management of the product man-hour quota is lacking. In the aspect of blanking time calculation, the calculation method of the time quota is still limited to an empirical estimation method, and the method depends on manual calculation, so that the problems of low working efficiency, easy error and the like exist. In addition, when a production task is issued each time, the blanking working hours need to be recalculated, the process preposition cannot be realized, and the working load of working hour quota personnel is large. Therefore, how to calculate the blanking time rapidly and accurately by using an informatization intelligent means is one of the problems that the electronic equipment product manufacturing enterprises need to solve urgently.
Disclosure of Invention
In view of the above, the invention provides a baseline-based blanking hour calculation method for a machining process, which applies a baseline to blanking hour calculation through system integration, and can quickly and accurately calculate blanking hours of electronic equipment products while realizing modularized management of product hour quota, thereby improving the intelligent level of blanking hour calculation of electronic equipment.
In order to achieve the purpose, the invention adopts the technical scheme that:
a baseline-based machining process blanking hour calculation method comprises the following steps:
(1) filling blanking calculation parameters in a process card of a process baseline, wherein the types of blanks for blanking comprise roots, discs and plates;
(2) compiling blanking hour quota data of a single mechanical processing process card in a process baseline;
(3) after receiving a formal production task of a product, determining the production quantity of parts according to the given production set quantity of the product in the processing task list and the loading quantity of the parts in the manufacturing bill of materials;
(4) and taking the blanking calculation result as a parameter of the working hour data turning sleeve, screening coefficients from a standard basic database of the blanking working hour quota, and performing working hour turning sleeve calculation.
Furthermore, in the step (2), the field related to the working hours in the process card has the authority, and only the person with the working hour rated calculation authority is allowed to browse and edit the working hour field.
Further, the blanking work-hour quota data in the step (2) is provided with a manual intervention mark, if the blanking work-hour quota data of the process card is provided with the manual intervention mark, the approval process is initiated again, the process card is transferred to the original work-hour quota worker, and the work-hour quota of the single process card is compiled; and if the blanking working hour quota data of the process card is not provided with a manual intervention mark, issuing the process card.
Further, there are 6 process steps under the unloading process, include: the method comprises the following steps of bar stock, plate shearing, drilling, thick plate material, numerical control gas cutting and the like, wherein the working hour calculation mode of each step is as follows:
1) bar stock
Working time TBase ofX shape coefficient ÷ 60
Wherein, TBase ofDetermined by both the diameter of the bar and the material, by querying a dynamic databaseObtaining T from bar blanking working hour quota basic dataBase ofA value;
2) plate shearing machine
Working hours (T)Radical 1+TRadical 2) Multiplying coarse and fine shearing coefficient multiplying shearing mode multiplying area coefficient ÷ 60
Wherein, TRadical 1And TRadical 2The length, the width and the thickness of the sheet blank are determined together, and T is obtained by inquiring basic data of the blanking time quota of the shearing machine stored in a dynamic databaseRadical 1And TRadical 2A value;
3) drilling holes
Working time TBase of×(L1+L2) 10 x number of holes x area (weight) coefficient x material/60
Wherein, TBase ofThe T is obtained by inquiring the basic data of drilling and blanking working hour quota stored in a dynamic database according to the thickness parameter of the sheet blankBase ofA value;
4) thick plate material
Working hours (T)Radical 1+TRadical 2) X thickness coefficient x material coefficient ÷ 60
Wherein, TRadical 1And TRadical 2The method is characterized in that the method is determined by three parameters of the length, the width and the thickness of a sheet blank together, and T is obtained by inquiring basic data of the blanking working hour quota of the thick sheet stored in a dynamic databaseRadical 1Value sum TRadical 2A value;
5) numerical control gas cutting
Working time TBase ofX shape x coarse-fine cut coefficient ÷ 60
Wherein, TBase ofThe method is characterized in that the method is determined by two parameters of the length of a sheet blank and the thickness of a sheet, and T is obtained by inquiring basic data of numerical control gas cutting blanking working hour quota stored in a dynamic databaseBase ofA value;
6) others
Working time TBase of
Wherein, TBase ofBy manual input.
Further, the default sleeve turning formula in the step (4) is as follows: the working procedure time is the single-piece working time, the blanking quantity, the quantity coefficient and the standard knot working time; wherein, the blanking quantity is automatically extracted from the process card.
Further, the coefficients are divided into three types: production quantity coefficient, blanking quantity coefficient and process quantity coefficient; calling the quantity coefficient when the manufacturing baseline management module carries out man-hour sleeve turning calculation; the number coefficient is a fixed value or a step coefficient.
Further, the blanking working hour quota data is stored in a dynamic database of the server side, and when working hour turnover calculation is carried out, the blanking working hour quota data of the corresponding work type is called from the dynamic database.
Compared with the prior art, the invention has the advantages that:
1. in the aspect of blanking working hour management, due to the fact that a process base line and a manufacturing base line are introduced into the system, modular management of blanking working hour quota of a machining process is achieved; and because after accepting the manufacturing task, the system can turn over the cover and calculate to the blanking man-hour quota data of the single mechanical processing technology card automatically according to the batch production quantity, this makes the task assign the production field fast, has improved production efficiency greatly, satisfies the electronic equipment production demand.
2. In the aspect of blanking working hour calculation, the working hour quota calculation mode is changed from traditional manual calculation into the mode that a computer calculates according to rules and algorithms set in a background, the traditional blanking working hour quota calculation process is combined with an informatization technology, and the purpose of quickly and accurately calculating blanking working hours by utilizing an informatization intelligent means is achieved.
Drawings
FIG. 1 is a flow chart of the method of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, a baseline-based method for calculating blanking time of a machining process includes the following steps:
the method comprises the following steps: after receiving a product development-to-production task, a manufacturing department starts to prepare production information;
step two: and filling blanking calculation parameters in the process card of the process baseline. The blank types are divided into three types, namely a root type (bar materials, pipe materials and section materials), a disc type (belt materials and wire materials) and a plate type (plate materials).
Step three: and compiling the blanking working hour quota data of the single mechanical processing process card in the process baseline. The field related to the working hours in the process card can be independently set with authority, and only the personnel with the working hour rated calculation authority can browse and edit the working hour field.
The blanking process comprises the following 6 steps, wherein the steps comprise: bar stock, plate shears, drill holes, thick stock, numerical control gas cutting, and "others". Each step corresponds to different working step working hour calculation rules and calculation formulas. The calculation rules and calculation formulas corresponding to different process steps are detailed later.
Because of the uncertain man-hour quota, namely the man-hour quota which can be determined according to the actual production quantity or the material object, man-hour quota personnel can add a manual intervention mark when making blanking man-hour quota data of a single mechanical processing process card.
Step four: and determining the production quantity of the parts according to the given production set quantity of the products in the processing task list and the loading quantity of the parts in the manufacturing bill of materials. If the same part is borrowed by a plurality of components, the production quantity of the part is the final production quantity after summation.
Step five: and in the manufacturing baseline, the blanking quantity is obtained by using the blanking parameter setting module. And taking the blanking quantity as a parameter of a blanking time data sleeve-turning formula, screening coefficients from a standard basic database of blanking time quota, and participating in the calculation of the blanking time data sleeve-turning formula.
When the blanking working hour is turned over and calculated in the fifth step and when the blanking working hour quota data of the process card is found to have a manual intervention mark, the system can initiate an approval process again, transfer the process card flow to the original working hour quota hands and compile the working hour quota of the single process card; and when the system does not find that the blanking man-hour quota data of the process card has the 'manual intervention mark', the system issues the process card.
In the fifth step, the default sleeve turning formula of the system is as follows: the working procedure time is the single-piece working time, the blanking quantity, the quantity coefficient and the standard knot working time. Wherein the blanking amount is automatically extracted from the process card, allowing manual modification. The quasi-settling time refers to the time taken for preparation and finishing.
The number coefficients are divided into three types: production quantity coefficient, blanking quantity coefficient and process quantity coefficient. The production quantity coefficient represents a stepped calculation coefficient of the blanking quantity; the blanking quantity coefficient represents the calculation coefficient of blanking and related procedures in machining; the process number coefficient represents a step calculation coefficient of the number of processes for CAM imposition in micro-assembly. And calling the number coefficient when the manufacturing baseline management module carries out man-hour turnover calculation. The number coefficient may be a fixed number or may be a step coefficient (step-wise calculation coefficient).
And fifthly, establishing various kinds of blanking man-hour quota basic data according to actual requirements of enterprises by the aid of the blanking man-hour quota standard foundation provided by the step five, transmitting the blanking man-hour quota basic data to the cloud server side, and storing the blanking man-hour quota basic data in the dynamic database. And the system calls the blanking working hour quota data of the corresponding work types from the dynamic database when the working hour calculation of the turning-over process is carried out. But this function is only the man-hour quota administrator authority.
The following will explain the calculation of the working hours of the blanking part in detail.
1. Bar stock
Calculating the formula:
working time TBase ofX shape coefficient ÷ 60
TBase ofThe diameter and the material of the bar stock are jointly determined, and the T can be obtained by inquiring 'bar stock blanking working hour quota basic data' which is stored in a dynamic database and formulated by enterprisesBase ofThe value is obtained. The shape coefficient is also set by the enterprise man-hour quota personnel according to the self condition of the enterprise.
2. Plate shearing machine
Calculating the formula:
working hours (T)Radical 1+TRadical 2) Multiplying coarse and fine shearing coefficient multiplying shearing mode multiplying area coefficient ÷ 60
TRadical 1And TRadical 2From the length of the blank of the plate material,The width and the thickness of the sheet are jointly determined, and T can be obtained by inquiring 'shearing machine blanking working hour quota basic data' stored in a dynamic databaseRadical 1And TRadical 2The value is obtained.
The rough and fine shearing coefficients are set by enterprise man-hour quota personnel according to the self condition of the enterprise.
The plate shearing modes comprise mechanical shearing, manual shearing of nonmetal, manual shearing of nonferrous metal and the like, and different plate shearing modes correspond to different plate shearing coefficients. The specific plate shearing coefficient is set by an enterprise man-hour quota worker according to the self condition of the enterprise.
The area coefficient is set by the man-hour quota personnel of the enterprise according to the self condition of the enterprise.
3. Drilling holes
Calculating the formula:
working time TBase of×(L1+L2) 10 x number of holes x area (weight) coefficient x material/60
TBase ofThe T can be obtained by inquiring 'drilling and blanking working hour quota basic data' stored in a dynamic database according to the thickness parameter of the sheet blankBase ofThe value is obtained.
The hole number coefficient is set by the man-hour quota of the enterprise according to the self condition of the enterprise.
The area (weight) coefficient is set by the man-hour quota of the enterprise according to the self condition of the enterprise.
The material types include polyvinyl chloride, aluminum, copper, and the like. Different material classes correspond to different coefficients. The material coefficient is set by the man-hour quota personnel of the enterprise according to the self condition of the enterprise.
4. Thick plate material
Calculating the formula:
working hours (T)Radical 1+TRadical 2) X thickness coefficient x material coefficient ÷ 60
TRadical 1And TRadical 2The method is determined by three parameters of the length, the width and the thickness of the sheet blank. Obtaining T by inquiring 'thick plate blanking working hour quota basic data' stored in a dynamic databaseRadical 1Value sum TRadical 2The value is obtained.
The thickness coefficient is set by the man-hour quota personnel of the enterprise according to the self condition of the enterprise.
The material types include non-metal, non-ferrous metal, etc. Different material classes correspond to different coefficients. The material coefficient is set by the man-hour quota personnel of the enterprise according to the self condition of the enterprise.
5. Numerical control gas cutting
Calculating the formula:
working time TBase ofX shape x coarse-fine cut coefficient ÷ 60
TBase ofThe method is determined by two parameters of the length of a sheet blank and the thickness of the sheet, and T can be obtained by inquiring 'numerical control gas cutting blanking working hour quota basic data' stored in a dynamic databaseBase ofThe value is obtained.
The shape parameters are set by the man-hour quota personnel according to the self condition of the enterprise.
The rough and fine cutting coefficient is set by man-hour quota personnel according to the self condition of the enterprise.
6. Others
Calculating the formula:
working time TBase of
TBase ofBy manual input.
After receiving a task of transferring product development to production, a manufacturing department starts to prepare production information, and at this stage, a product process baseline is established and blanking working hour data of a single machining process card is compiled. And then, when the process files are synchronized in the manufacturing baseline management module, the blanking working hour quota data is subjected to turnover calculation.
The machining folder of the process library is provided with a process, a process step and a cover turning formula.
Some more specific examples are as follows:
the first embodiment is as follows: calculation of bar blanking time
1. After the manufacturing department receives the task of transferring the product development to the production, the manufacturing department starts to prepare the production information. The product specification is 20mm diameter aluminum alloy.
2. And filling blanking calculation parameters in the process card of the process baseline. Bar stock calculation parameters are filled in as shown in table 1.
TABLE 1 Bar stock Blanking calculation parameters
3. And compiling the blanking working hour quota data of the single mechanical processing process card in the process baseline. The working step and working hour calculation formula of the bar is as follows:
working time TBase ofX shape coefficient ÷ 60
Wherein T isBase ofThe diameter and the material of the bar stock are jointly determined, and T can be obtained by inquiring basic data of bar stock blanking time quota in a dynamic databaseBase of6. The shape factor of the bar is equal to 1. Therefore, the working steps and working hours of the bar stock are as follows: 0.1.
4. and after receiving the formal production task of the product, determining the production quantity of the parts according to the given production set quantity of the product in the processing task list and the loading quantity of the parts in the manufacturing bill of materials. The number of parts produced was 200.
5. And performing man-hour turning calculation on the manufacturing baseline management module, and firstly obtaining a blank blanking result. The system outputs a blanking result as follows: "sawing: 2 blanks 250.00mm long; 1 billet of 61.5mm length. "therefore the number of blanks is 3.
The default formula of the system for turning over the sleeve is as follows:
working procedure time is single working hour multiplied by blanking quantity multiplied by quantity coefficient and standard knot working hour
The number of quasi-bonding steps is set to 1 hour. The single man-hour is 0.1 hour. The lower number is 3 pieces. When the number coefficient selects the "production number coefficient", the man-hour quota calculation is performed. The quantity coefficient takes a value according to enterprise standards, for example, the quantity coefficient takes 0.85 in the present example. Then the calculation yields: the process man-hour was 0.1 × 3 × 0.85+1, 1.255 hours.
When the number coefficient selects 'blanking number coefficient', the blanking number coefficient is calculated by adopting distribution steps. The table of the blanking coefficient of the bar stock configured by the man-hour management module is shown in table 2.
TABLE 2 sheet blanking number coefficient
| Serial number | Number of | Coefficient of performance |
| 1 | ≤2 | 1 |
| 2 | 2～5 | 0.95 |
| 3 | ＞5 | 0.9 |
Then the calculation yields: the process man-hour was 0.1 × (2 × 1+1 × 0.95) +1 was 1.295 hours.
Example two: plate shearing blanking time calculation
1. After the manufacturing department receives the task of transferring the product development to the production, the manufacturing department starts to prepare the production information. The product specification is 777mm long, 515mm wide and 5mm thick.
2. And filling blanking calculation parameters in the process card of the process baseline. The slab calculation parameters are filled in as shown in table 1.
TABLE 3 calculation parameters for blanking of sheet material
3. And compiling the blanking working hour quota data of the single mechanical processing process card in the process baseline. The formula for calculating the working steps and working hours of the plate shearing is as follows:
working hours (T)Radical 1+TRadical 2) Multiplying coarse and fine shearing coefficient multiplying shearing mode multiplying area coefficient ÷ 60
TRadical 1And TRadical 2The method is determined by three parameters of the length, the width and the thickness of the sheet blank together, and T can be obtained by inquiring 'blanking working hour quota basic data of a shearing machine' stored in a dynamic databaseRadical 110.76 and TRadical 24.85. The fine shear coefficient should be 1.2. The plate shearing mode is mechanical, and the plate shearing coefficient is 1. The area factor is 2.
Therefore, the step and the working hours of the plate shearing are as follows: 0.625.
4. and after receiving the formal production task of the product, determining the production quantity of the parts according to the given production set quantity of the product in the processing task list and the loading quantity of the parts in the manufacturing bill of materials. The number of parts produced was 800.
5. And performing man-hour turning calculation on the manufacturing baseline management module, and firstly obtaining a blank blanking result. The system outputs a blanking result as follows: "shearing: 2371.00mm 1145mm blanks 133; 1065mm 887mm blank 1 piece. "
And performing man-hour sleeve turning calculation on the manufacturing baseline management module, wherein the default sleeve turning formula of the system is as follows:
working procedure time is single working hour multiplied by blanking quantity multiplied by quantity coefficient and standard knot working hour
However, for plate blanking, TRadical 1And TRadical 2The method is determined by three parameters of the length, the width and the thickness of the sheet blank. Therefore, when the sleeve is turned over, the blanking working hours of 1 1065mm × 887mm plate are additionally calculated. The working steps and working hours of the 1065mm × 887mm plate are as follows:
step man-hour (2.79+2.52) × 1.2 × 1 × 1.3 ÷ 60 ═ 0.138 hours
The number of quasi-bonding steps was set to 0.3 hour. The single man-hour is 0.625 hours. The maximum size of the blanks was 133 pieces plus. When the number coefficient selects the "production number coefficient", the man-hour quota calculation is performed. The quantity coefficient takes a value according to enterprise standards, for example, the quantity coefficient in this example takes 0.8. Then the calculation yields:
the process man-hour was 0.625 × 133 × 0.8+0.138+0.3 — 66.938 hours.
When the number coefficient selects 'blanking number coefficient', the blanking number coefficient is calculated by adopting distribution steps. The table of the blanking coefficient of the bar stock configured by the man-hour management module is shown in table 2.
TABLE 4 sheet blanking number coefficient
| Serial number | Number of | Coefficient of performance |
| 1 | ≤5 | 1 |
| 2 | 6～10 | 0.95 |
| 3 | ＞10 | 0.9 |
Then the calculation yields: the process man-hours were 0.625 × (5 × 1+5 × 0.95+123 × 0.9) +0.138+0.3 ═ 75.719 hours.
In a word, the invention introduces the process baseline and the manufacturing baseline, realizes the modularized management of the blanking working hour quota of the machining process, and improves the production efficiency; on the basis, the traditional blanking working hour quota calculation process is combined with an informatization technology, so that the blanking working hour is quickly and accurately calculated by an informatization intelligent means.
The above description is only a preferred embodiment of the present invention, but the present invention is not limited to the above embodiment. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit and principle of the invention, and the equivalents or substitutions are included in the scope defined by the claims of the present application.
Claims (7)
1. A baseline-based machining process blanking hour calculation method is characterized by comprising the following steps:
(1) filling blanking calculation parameters in a process card of a process baseline, wherein the types of blanks for blanking comprise roots, discs and plates;
(2) compiling blanking hour quota data of a single mechanical processing process card in a process baseline;
(3) after receiving a formal production task of a product, determining the production quantity of parts according to the given production set quantity of the product in the processing task list and the loading quantity of the parts in the manufacturing bill of materials;
(4) and taking the blanking calculation result as a parameter of the working hour data turning sleeve, screening coefficients from a standard basic database of the blanking working hour quota, and performing working hour turning sleeve calculation.
2. The baseline-based blanking hour calculation method for mechanical processing technology of claim 1, wherein in the step (2), the field related to the working hours in the process card has authority, and only the person with the rated calculation authority of the working hours is allowed to browse and edit the working hour field.
3. The baseline-based blanking hour calculation method for the machining process according to claim 2, wherein the blanking hour quota data in the step (2) has a manual intervention mark, if the blanking hour quota data of the process card has the manual intervention mark, the approval process is initiated again, the process card is transferred to the original hour quota worker, and the hour quota of the single process card is compiled; and if the blanking working hour quota data of the process card is not provided with a manual intervention mark, issuing the process card.
4. The baseline-based blanking hour calculation method for the machining process according to claim 1, wherein 6 steps are performed after the blanking process, and the method comprises the following steps: the method comprises the following steps of bar stock, plate shearing, drilling, thick plate material, numerical control gas cutting and the like, wherein the working hour calculation mode of each step is as follows:
1) bar stock
Step man-hour = TBase ofX shape coefficient ÷ 60
Wherein, TBase ofThe diameter and the material of the bar stock are jointly determined, and T is obtained by inquiring bar stock blanking working hour quota basic data stored in a dynamic databaseBase ofA value;
2) plate shearing machine
Working hours = (T)Radical 1＋TRadical 2) Multiplying coarse and fine shearing coefficient multiplying shearing mode multiplying area coefficient ÷ 60
Wherein, TRadical 1And TRadical 2The length, the width and the thickness of the sheet blank are determined together, and T is obtained by inquiring basic data of the blanking time quota of the shearing machine stored in a dynamic databaseRadical 1And TRadical 2A value;
3) drilling holes
Step man-hour = TBase of×（L1＋L2) 10 x number of holes x area (weight) coefficient x material/60
Wherein, TBase ofThe T is obtained by inquiring the basic data of drilling and blanking working hour quota stored in a dynamic database according to the thickness parameter of the sheet blankBase ofA value;
4) thick plate material
Working hours = (T)Radical 1＋TRadical 2) X thickness coefficient x material coefficient ÷ 60
Wherein, TRadical 1And TRadical 2The method is determined by three parameters of the length, the width and the thickness of the plate blank together, and the thick plate blanking tool stored in a dynamic database is inquiredDeriving T from the time-quota basis dataRadical 1Value sum TRadical 2A value;
5) numerical control gas cutting
Step man-hour = TBase ofX shape x coarse-fine cut coefficient ÷ 60
Wherein, TBase ofThe method is characterized in that the method is determined by two parameters of the length of a sheet blank and the thickness of a sheet, and T is obtained by inquiring basic data of numerical control gas cutting blanking working hour quota stored in a dynamic databaseBase ofA value;
6) others
Step man-hour = TBase of
Wherein, TBase ofBy manual input.
5. The baseline-based machining process blanking hour calculation method according to claim 1, wherein the default overturning formula in the step (4) is as follows: the working procedure working hour = single working hour multiplied by blanking quantity multiplied by quantity coefficient + quasi-binding working hour; wherein, the blanking quantity is automatically extracted from the process card.
6. The baseline-based method of calculating blanking hours for a machining process of claim 5, wherein the coefficients are divided into three categories: production quantity coefficient, blanking quantity coefficient and process quantity coefficient; calling the quantity coefficient when the manufacturing baseline management module carries out man-hour sleeve turning calculation; the number coefficient is a fixed value or a step coefficient.
7. The baseline-based blanking hour calculation method for mechanical processing technology of claim 1, wherein the blanking hour quota data is stored in a dynamic database at a server side, and when the working hour overlap calculation is performed, the blanking hour quota data of the corresponding work type is retrieved from the dynamic database.
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