CN116618508A - Drawing processing method of automobile covering part - Google Patents
Drawing processing method of automobile covering part Download PDFInfo
- Publication number
- CN116618508A CN116618508A CN202310451526.0A CN202310451526A CN116618508A CN 116618508 A CN116618508 A CN 116618508A CN 202310451526 A CN202310451526 A CN 202310451526A CN 116618508 A CN116618508 A CN 116618508A
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- CN
- China
- Prior art keywords
- processed
- automobile panel
- automobile
- allowance
- drawing processing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003672 processing method Methods 0.000 title claims abstract description 9
- 238000012545 processing Methods 0.000 claims abstract description 20
- 238000004040 coloring Methods 0.000 claims abstract description 17
- 238000003801 milling Methods 0.000 claims abstract description 15
- 230000007812 deficiency Effects 0.000 claims abstract description 14
- 238000007689 inspection Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000012797 qualification Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/30—Computing systems specially adapted for manufacturing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Factory Administration (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention relates to the technical field of automobile part manufacturing, in particular to a drawing processing method of an automobile covering part, which comprises the following steps: s1, determining a part of an automobile panel to be processed, which needs milling deficiency, based on coloring inspection; s2, acquiring a molded surface digital model of the automobile panel to be processed, and setting a negative allowance at the part needing milling deficiency determined in the S1, wherein the negative allowance is set on the basis of a preset processing allowance of the automobile panel to be processed, so as to obtain drawing processing parameters; and S3, drawing the automobile panel based on the drawing parameters obtained in the step S2, and checking the coloration. The method can solve the problem that adjacent flat heavy-duty surfaces are difficult to color due to small shape interference at a plurality of positions of the automobile panel, and improves the color inspection qualification rate.
Description
Technical Field
The invention relates to the technical field of automobile part manufacturing, in particular to a drawing processing method of an automobile covering part.
Background
In the prior art, the coloring rate of blue oil for first clamping of more than half of inner plates and structural member drawing dies is less than 30%, and the common appearance is that the periphery of the dies is strongly colored (interfered), and the middle part of the part is not colored. The analytical reasons include the following: 1) The pot bottom value is smaller or the algorithm has deviation with the actual deformation of the machine tool; 2) The concave fillets are not in place when being kept empty; 3) The mold is deformed after being stressed, and the side walls of the upper mold and the lower mold or small shapes interfere.
The drawing die for drawing is formed by a male die, a blank holder and a female die together, wherein most of the shapes are formed by the male die. Because of uneven thinning of parts, machining deviation and other reasons, the clearance between the male die and the female die is uneven during die assembly, and small shapes such as side walls, concave fillets and the like are easy to generate in-place positive deviation during drawing machining, so that small interference is caused, adjacent flat heavy closing surfaces are difficult to color due to interference of multiple small shapes, and coloring inspection is failed.
CN114346045a discloses a processing die surface processing method of a drawing die, which comprises the integral processing of a die surface of a blank holder, the processing of a management surface on the die surface of the blank holder, the processing of a non-management surface and the compensation of the die surface processing of the blank holder, wherein a gap between the blank holder and an upper die surface is reasonably set, the clamping of the blank holder and an upper die to a plate material is ensured, the inflow of the plate material during drawing forming is controlled, the processing of the die surface of the upper die and the die surface of the lower die is included, the gap between a male die and a female die is strictly controlled, and the forming of the characteristics related to a convex edge, a back-gouging line, a concave angle, a concave surface and the like on a fender is ensured to be good; according to the invention, the drawing forming of the fender is ensured through the arrangement of the clearances between the blank holder and the upper die and between the upper die and the lower die, and particularly, the good forming of the characteristics on the fender is ensured.
Disclosure of Invention
The invention aims to provide a drawing processing method of an automobile covering part, which can solve the problem that adjacent flat heavy-closing surfaces are not easy to color due to small shape interference at a plurality of parts of the automobile covering part, and improve the color inspection qualification rate.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a method of drawing an automotive panel comprising the steps of:
s1, determining a part of an automobile panel to be processed, which needs milling deficiency, based on coloring inspection;
s2, acquiring a molded surface digital model of the automobile panel to be processed, and setting a negative allowance at the part needing milling deficiency determined in the S1, wherein the negative allowance is set on the basis of a preset processing allowance of the automobile panel to be processed, so as to obtain drawing processing parameters;
and S3, drawing the automobile panel based on the drawing parameters obtained in the step S2, and checking the coloration.
Further, the negative allowance is 10-20% of the thickness of the part of the automobile panel to be processed, which is required to be milled.
Further, the part to be processed of the automobile panel to be processed in S1, which needs milling, comprises a side wall and a concave circular angle.
If the coloring test is not qualified in S3, the process returns to S2 to adjust the negative margin until the coloring test is qualified.
The invention has the beneficial effects that:
according to the invention, the part needing milling deficiency of the automobile covering part to be processed is determined through coloring inspection, then a negative allowance is arranged at the part needing milling deficiency of the molded surface digital-analog part of the automobile covering part to be processed, so that new drawing processing parameters are obtained, and due to the arrangement of the negative allowance, a certain thickness of material is processed more at a preset position by a cutter rail during drawing processing, thereby playing a role of milling deficiency and leaving blank, further solving the problem that adjacent flat heavy-duty surfaces are difficult to color due to interference of multiple small shapes of the automobile covering part, and improving the coloring inspection qualification rate of the automobile covering part.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the description of the embodiments or the prior art will be briefly introduced below, it being obvious that the drawings in the description below are only some examples of the present invention.
FIG. 1 is a schematic flow chart of a drawing process of an automobile panel according to the present invention;
fig. 2 is a partial profile comparison schematic of the front and rear automobile panels with negative margin.
Detailed Description
Further advantages and effects of the present invention will become readily apparent to those skilled in the art from the disclosure herein, by referring to the accompanying drawings and the preferred embodiments. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be understood that the preferred embodiments are presented by way of illustration only and not by way of limitation.
It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present invention by way of illustration, and only the components related to the present invention are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.
Referring to fig. 1, a drawing process for automotive panels is shown, comprising the steps of:
s1, determining a part of the automobile covering part to be processed, which needs to be milled, based on a coloring inspection result of the existing automobile covering part, wherein the part of the automobile covering part to be processed, which needs to be milled, comprises a side wall and a concave circular angle.
S2, acquiring a molded surface digital model of the automobile panel to be processed, and setting a negative allowance at the part needing milling deficiency determined in S1, wherein the negative allowance is set on the basis of a preset processing allowance of the automobile panel to be processed, so as to obtain drawing processing parameters. The negative allowance is 10-20% of the thickness of the part of the automobile panel to be processed, which is required to be milled, and the specific set value is reasonably adjusted according to actual requirements. For example: the thickness of the material of the part, needing milling deficiency, of the automobile panel to be processed is 1mm, and the negative allowance can be set to be 0.1-0.2 mm.
And S3, drawing the automobile panel based on the drawing parameters obtained in the step S2, and checking the coloration. And if the coloring inspection is qualified, the negative allowance in the S2 is reasonably set, and the drawing processing parameters are cured. And (5) returning to S2 to adjust the negative margin until the coloring test is qualified if the coloring test is not qualified.
According to the invention, the part needing milling deficiency of the automobile panel to be processed is determined through coloring inspection, then a negative allowance is set at the part needing milling deficiency of the molded surface digital-analog of the automobile panel to be processed to obtain new drawing processing parameters, and referring to fig. 2, a cutter rail is processed more by a certain thickness at a preset position during drawing processing due to the setting of the negative allowance, compared with the original drawing processing parameters, the setting of the negative allowance plays a role of milling deficiency and blank leaving, so that the problem that adjacent flat heavy-duty closing surfaces are difficult to color due to the interference of multiple small shapes of the automobile panel is solved, and the coloring inspection qualification rate of the automobile panel is improved.
The above embodiments are merely preferred embodiments for fully explaining the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present invention, and are intended to be within the scope of the present invention.
Claims (4)
1. A method of drawing an automotive panel, comprising the steps of:
s1, determining a part of an automobile panel to be processed, which needs milling deficiency, based on coloring inspection;
s2, acquiring a molded surface digital model of the automobile panel to be processed, and setting a negative allowance at the part needing milling deficiency determined in the S1, wherein the negative allowance is set on the basis of a preset processing allowance of the automobile panel to be processed, so as to obtain drawing processing parameters;
and S3, drawing the automobile panel based on the drawing parameters obtained in the step S2, and checking the coloration.
2. The drawing processing method of an automobile panel according to claim 1, characterized in that: the negative allowance is 10-20% of the thickness of the part of the automobile panel to be processed, which is required to be milled.
3. The drawing processing method of an automobile panel according to claim 1, characterized in that: the part to be processed of the automobile panel to be processed in S1, which is required to be milled, comprises a side wall and a concave circular angle.
4. The drawing processing method of an automobile panel according to claim 1, characterized in that: and S3, if the coloring inspection is not qualified, returning to S2 to adjust the negative margin until the coloring inspection is qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310451526.0A CN116618508A (en) | 2023-04-25 | 2023-04-25 | Drawing processing method of automobile covering part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310451526.0A CN116618508A (en) | 2023-04-25 | 2023-04-25 | Drawing processing method of automobile covering part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116618508A true CN116618508A (en) | 2023-08-22 |
Family
ID=87609056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310451526.0A Pending CN116618508A (en) | 2023-04-25 | 2023-04-25 | Drawing processing method of automobile covering part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116618508A (en) |
-
2023
- 2023-04-25 CN CN202310451526.0A patent/CN116618508A/en active Pending
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