CN113591167A - Stamping deformation compensation method of press - Google Patents
Stamping deformation compensation method of press Download PDFInfo
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- CN113591167A CN113591167A CN202110684680.3A CN202110684680A CN113591167A CN 113591167 A CN113591167 A CN 113591167A CN 202110684680 A CN202110684680 A CN 202110684680A CN 113591167 A CN113591167 A CN 113591167A
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- 230000001965 increasing effect Effects 0.000 claims description 16
- 238000004364 calculation method Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 4
- 238000004040 coloring Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
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Abstract
The invention provides a stamping deformation compensation method of a press, which comprises the following steps of 1, modeling a mould profile model by adopting software; step 2, selecting four corners of the molded surface as datum points A, the middle point of the wide side of the molded surface as a target point B, the middle point of the long side of the molded surface as a target point C, and the central point of the molded surface as a target point D; step 3, measuring the length of each side; and 4, calculating deformation difference values of the target point B, the target point C and the target point D according to the measured lengths. The deformation difference of the die is compensated in the reverse direction of the female die, and the size of the die is quickly determined, so that the working efficiency is effectively improved.
Description
Technical Field
The invention relates to the technical field of stamping dies, in particular to a stamping deformation compensation method of a press.
Background
In recent years, with the development of manufacturing industry, pursuing product quality and saving manufacturing cost become two major concerns for enterprises. At present, under the requirement of pursuing high quality of products, the period is more and more tight, and a series of problems of low coloring rate, long grinding time and the like exist, so that the quality of the whole automobile is influenced. In particular, a covering part mould is large, a certain micro-deformation exists during operation on a press, so that chromatic aberration is caused, in order to improve the coloring conventional mode of the mould is reinforced pressure, but for a large-sized covering part, the mould is large, the micro-deformation on the press is larger, so that the reinforced pressure cannot meet the requirement of grinding, and the grinding time of the press is increased greatly, patent number CN110020487A discloses a method for compensating deflection deformation of a blank holder of a drawing mould, wherein the deflection deformation of the blank holder is analyzed by adopting a finite element method, a reference point is selected at the key position of the blank holder, the reference point with the minimum deformation is taken as a reference, the deformation of other reference points is calculated as a compensation value for compensation, but the method has more complex operation steps, needs to adopt a plurality of algorithms for calculation, needs to consider more factors simultaneously, so that the efficiency is reduced, and only compensates for the deformation of the blank holder, the center point cannot be compensated for and it becomes important to solve this problem.
Disclosure of Invention
The invention aims to provide a stamping deformation compensation method of a press, which solves the problem that the numerical calculation of the compensation deformation in the background technology is complicated by selecting reference points A on four sides, calculating the deformation difference between the center of the side edge of a molded surface and the center of the molded surface according to the length of the long and wide edges of the molded surface and reversely compensating the deformation difference of a die on a female die.
The invention provides a stamping deformation compensation method of a press, which comprises the following steps of 1, modeling a mould profile model by adopting software; step 2, selecting four corners of the molded surface as datum points A, the middle point of the wide side of the molded surface as a target point B, the middle point of the long side of the molded surface as a target point C, and the central point of the molded surface as a target point D; step 3, measuring the length of each side; and 4, calculating deformation difference values of the target point B, the target point C and the target point D according to the measured lengths.
The further improvement lies in that: the value of the reference point A is less than or equal to 0.05 mm.
The further improvement lies in that: and when the width of the molded surface is increased by 0.5m, the value of the target point B is increased by 0.03-0.05 mm on the basis of the datum point A.
The further improvement lies in that: when the length of the molded surface is increased by 0.5m, the value of the target point C is increased by 0.05-0.07 mm on the basis of the datum point A.
Further the machine is characterized in that: when the perimeter of the molded surface is increased by 0.5m, the value of the target point D is increased by 0.07-0.15 mm on the basis of the datum point A.
The invention has the beneficial effects that: the positions of the reference point and the target point are determined by adopting a method of reversely compensating the die deformation difference value on the female die, the size of the compensation value is determined, and the compensation amount is increased on the reference point according to the size of the die according to the size measurement, so that the size of the compensation amount is determined, the calculation process is simpler, and the working efficiency is effectively improved; through the defect of punching deformation of the die, the coloring effect of the large-scale covering part is improved, the grinding time of a press and a bench worker is reduced, and the production efficiency and the product quality are improved.
Drawings
FIG. 1 is a schematic diagram of fiducial and target selection.
Detailed Description
For the purpose of enhancing understanding of the present invention, the present invention will be further described in detail with reference to the following examples, which are provided for illustration only and are not to be construed as limiting the scope of the present invention.
The embodiment provides a stamping deformation compensation method of a press, which comprises the following steps of 1, performing geometric modeling structure modeling on a die surface model by adopting software, and adopting computer-aided software such as Catia and UG; step 2, selecting four corners of the molded surface as datum points A, the middle point of the wide side of the molded surface as a target point B, the middle point of the long side of the molded surface as a target point C, and the central point of the molded surface as a target point D, as shown in fig. 1; step 3, measuring the length of each side; and 4, calculating deformation difference values of the target point B, the target point C and the target point D according to the measured lengths.
The value of the reference point A is less than or equal to 0.05 mm. For each 0.5m increase in profile width, the value of target point B increases by 0.04mm from reference point a. For each 0.5m increase in profile length, the value of target point C increases by 0.06mm from reference point a. For each 0.5m increase in profile circumference, the value of target point D increases by 0.11mm from datum point a.
| This example | Comparative example | |
| Step 1 | Modeling | Modeling |
| Step 2 | Selecting reference points and target points, measuring the reference points Amount of deformation | Selecting multiple reference points, and measuring deformation of each point |
| Step 3 | Measuring the length of the mould | Analyzing the deformation structure, and taking the reference point with the minimum deformation |
| Step 4 | According to the length of the measurement, at the value of the reference point Increasing the value to obtain compensation data | Calculating the deformation of the other reference points as compensation values |
| Step 5 | According to the compensation formula, adding the target point position and the reference point position Calculating corresponding compensation value to obtain compensation data | |
| Results | The measurement of a plurality of points is reduced, the calculation steps are less, the efficiency is faster | More measured reference points, more calculation steps and more calculation processes Complex and inefficient |
The method comprises the steps of determining the positions of a reference point and a target point by reversely compensating a die deformation difference value on a female die, determining the size of a compensation value by taking four side points as the reference points, and increasing the compensation quantitative value on the reference point according to the size of the size according to the size measurement of the die so as to determine the size of the compensation amount.
Claims (5)
1. The stamping deformation compensation method of the press is characterized by comprising the following steps of 1, modeling a mould surface model by adopting software; step 2, selecting four corners of the molded surface as datum points A, the middle point of the wide side of the molded surface as a target point B, the middle point of the long side of the molded surface as a target point C, and the central point of the molded surface as a target point D; step 3, measuring the length of each side; and 4, calculating deformation difference values of the target point B, the target point C and the target point D according to the measured lengths.
2. The press deformation compensation method of a press according to claim 1, characterized in that: the reference point A is less than or equal to 0.05 mm.
3. The press deformation compensation method of a press according to claim 1, characterized in that: and when the width of the molded surface is increased by 0.5m, the value of the target point B is increased by 0.03-0.05 mm on the basis of the datum point A.
4. The press deformation compensation method of a press according to claim 1, characterized in that: when the length of the molded surface is increased by 0.5m, the value of the target point C is increased by 0.05-0.07 mm on the basis of the datum point A.
5. The press deformation compensation method of a press according to claim 1, characterized in that: when the perimeter of the molded surface is increased by 0.5m, the value of the target point D is increased by 0.07-0.15 mm on the basis of the datum point A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110684680.3A CN113591167A (en) | 2021-06-21 | 2021-06-21 | Stamping deformation compensation method of press |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110684680.3A CN113591167A (en) | 2021-06-21 | 2021-06-21 | Stamping deformation compensation method of press |
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| Publication Number | Publication Date |
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| CN113591167A true CN113591167A (en) | 2021-11-02 |
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| CN202110684680.3A Pending CN113591167A (en) | 2021-06-21 | 2021-06-21 | Stamping deformation compensation method of press |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102169521A (en) * | 2011-04-25 | 2011-08-31 | 天津职业技术师范大学 | Design method for molded surface of automobile cover part die based on molded surface deformation compensation |
| CN102411641A (en) * | 2010-09-25 | 2012-04-11 | 集美大学 | Method for compensating rebounding error of automobile cover panel based on numerical simulation |
| CN102601194A (en) * | 2012-03-16 | 2012-07-25 | 中国第一汽车股份有限公司 | Molded surface compensation method of large stamping die aiming at deflection deformation of press machine |
| CN106890870A (en) * | 2017-01-23 | 2017-06-27 | 中国第汽车股份有限公司 | A kind of die face part springback compensation method based on ellipsoid mapped actuation |
| CN107116139A (en) * | 2017-04-28 | 2017-09-01 | 天津职业技术师范大学 | The design method and cladding member mold of die face |
| CN111680439A (en) * | 2020-05-22 | 2020-09-18 | 中国第一汽车股份有限公司 | Compensation method for defects of surface products of automobile outer covering parts |
| CN112084599A (en) * | 2020-09-09 | 2020-12-15 | 南京航空航天大学 | Aerospace box part structure deformation-oriented compensation method |
| CN112872273A (en) * | 2021-03-17 | 2021-06-01 | 中国航发动力股份有限公司 | Molded line compensation method for precision forging blade die |
-
2021
- 2021-06-21 CN CN202110684680.3A patent/CN113591167A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102411641A (en) * | 2010-09-25 | 2012-04-11 | 集美大学 | Method for compensating rebounding error of automobile cover panel based on numerical simulation |
| CN102169521A (en) * | 2011-04-25 | 2011-08-31 | 天津职业技术师范大学 | Design method for molded surface of automobile cover part die based on molded surface deformation compensation |
| CN102601194A (en) * | 2012-03-16 | 2012-07-25 | 中国第一汽车股份有限公司 | Molded surface compensation method of large stamping die aiming at deflection deformation of press machine |
| CN106890870A (en) * | 2017-01-23 | 2017-06-27 | 中国第汽车股份有限公司 | A kind of die face part springback compensation method based on ellipsoid mapped actuation |
| CN107116139A (en) * | 2017-04-28 | 2017-09-01 | 天津职业技术师范大学 | The design method and cladding member mold of die face |
| CN111680439A (en) * | 2020-05-22 | 2020-09-18 | 中国第一汽车股份有限公司 | Compensation method for defects of surface products of automobile outer covering parts |
| CN112084599A (en) * | 2020-09-09 | 2020-12-15 | 南京航空航天大学 | Aerospace box part structure deformation-oriented compensation method |
| CN112872273A (en) * | 2021-03-17 | 2021-06-01 | 中国航发动力股份有限公司 | Molded line compensation method for precision forging blade die |
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| 刘进军 等: "提高冲模研合率的方法与应用", 《模具工业》 * |
| 张得良等: "汽车车门玻璃导轨件冲压成形回弹补偿研究", 《锻压技术》 * |
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Application publication date: 20211102 |