CN108889836A - The manufacturing method of stamping parts and the semi-finished product of stamping parts - Google Patents
The manufacturing method of stamping parts and the semi-finished product of stamping parts Download PDFInfo
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- CN108889836A CN108889836A CN201810698729.9A CN201810698729A CN108889836A CN 108889836 A CN108889836 A CN 108889836A CN 201810698729 A CN201810698729 A CN 201810698729A CN 108889836 A CN108889836 A CN 108889836A
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- location hole
- semi
- finished product
- stamping parts
- manufacturing
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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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/001—Shaping combined with punching, e.g. stamping and perforating
-
- 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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
Abstract
A kind of manufacturing method the invention discloses stamping parts includes：Punching press obtains the first semi-finished product, there is first semi-finished product location hole to carry out first time deburring to first semi-finished product along first time trimming line, obtain the second semi-finished product, the location hole is between the first time trimming line and second of trimming line, second of deburring is carried out to second semi-finished product along second of trimming line, obtains the workpiece without location hole.The manufacturing method of stamping parts according to an embodiment of the present invention, first time deburring is carried out along first time trimming line to the first semi-finished product, to obtain second semi-finished product with location hole, to carry out second of deburring to the second semi-finished product along second of trimming line, and final required workpiece is obtained.During above-mentioned stamped, through location hole in second of deburring, precise positioning is provided for stamping parts, to improve the punching precision of stamping parts.
Description
Technical field
Stamping technology field of the present invention, manufacturing method and stamping parts in particular to a kind of stamping parts half at
Product.
Background technique
In the related technology, in machinery field, especially direction of traffic, the use of stamping parts is very common.But it is some compared with
For smooth stamping parts (such as：Door skin, cover etc.), it, can be because of punching when punching press, deburring are completed and carry out subsequent processing
Casting die positioning does not cause error precisely, and then reduces the quality of product.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the present invention proposes a kind of punching
Precise positioning of the stamping parts in punching course may be implemented in the manufacturing method of casting die, the manufacturing method of the stamping parts, improves
The punching precision of stamping parts.
The present invention also proposes a kind of semi-finished product of stamping parts to match with above-mentioned stamping parts manufacturing method.
The manufacturing method of the stamping parts of embodiment includes according to a first aspect of the present invention：Punching press obtains the first semi-finished product, institute
It states the first semi-finished product and first time deburring is carried out to first semi-finished product along first time trimming line with location hole, obtain the second half
Finished product, the location hole is between the first time trimming line and second of trimming line, along second of trimming line to institute
It states the second semi-finished product and carries out second of deburring, obtain the workpiece without location hole.
The manufacturing method of stamping parts according to an embodiment of the present invention carries out first along first time trimming line to the first semi-finished product
Secondary deburring, to obtain second semi-finished product with location hole, to be carried out second along second of trimming line to the second semi-finished product
Deburring, and obtain final required workpiece.During above-mentioned stamped, through location hole in second of deburring, it is
Stamping parts provides precise positioning, to improve the punching precision of stamping parts.
According to some embodiments of the present invention, flanging and restriking work is additionally provided between first time deburring and second of deburring
Sequence.
In some embodiments, the first time trimming line intersects with second of trimming line and limits jointly at least
One closed annular region, the location hole are located at least one described annular region.
Further, the shape of the annular region is consistent with the shape of the location hole.
Optionally, the annular region is formed as lug.
In some embodiments, the location hole is polygon, at least one edge of the location hole and described second
Secondary trimming line is parallel and the shape at remaining each edge of the location hole is consistent with the first time trimming line.
Further, the location hole is isosceles triangle, and second of trimming line is and the isosceles triangle
The parallel straight line in bottom edge, the first time trimming line include first straight line section, second straight line section and third straightway, and described
One straightway is parallel with a stringcourse of the location hole, another stringcourse of the second straight line section and the location hole is flat
Row, the third straightway is in the two sides of second of trimming line.
Optionally, there is fillet between the adjacent side of the location hole, the bottom edge of the location hole and each stringcourse it
Between fillet be greater than the fillet between two stringcourses, the first straight line section and the second straight line section and pass through the first arc section company
Connect, a side of the location hole be parallel at a distance from the first straight line section of the side as h1, the location hole it is another
It is h2, the fillet between first arc section and two stringcourses at a distance from a side and the second straight line section for being parallel to the side
Spacing be h3, wherein h3 > h2, h2=h1.
In some embodiments, h3 is 1.2-1.5 times of h2.
The semi-finished product of the stamping parts of embodiment according to a second aspect of the present invention, the semi-finished product have lug and are located at institute
The location hole on lug is stated, the lug is suitable for being removed in last one of trimming process step.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, wherein：
Fig. 1 is the schematic diagram of the manufacturing method of stamping parts according to an embodiment of the present invention；
Fig. 2 is the location hole and matched positioning pin of the manufacturing method of stamping parts according to an embodiment of the present invention
Schematic diagram.
Appended drawing reference：
Location hole 1, lug 2, first time trimming line a, first straight line section a1, second straight line section a2, third straightway a3, the
One arc section a4, second of trimming line b, formed punch axis center d, each cutting edge center e of formed punch.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar unit or unit with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
The manufacturing method of stamping parts according to an embodiment of the present invention is described below with reference to Fig. 1 to Fig. 2.
As shown in Figure 1, the manufacturing method of the stamping parts of embodiment includes according to a first aspect of the present invention：Punching press obtains first
Semi-finished product, the first semi-finished product have location hole 1, carry out first time deburring to the first semi-finished product along first time trimming line a, obtain the
Two semi-finished product, location hole 1 are located between first time trimming line a and second of trimming line b, along second of trimming line b to the second half
Finished product carries out second of deburring, obtains the workpiece without location hole 1.
The manufacturing method of stamping parts according to an embodiment of the present invention carries out the along first time trimming line a to the first semi-finished product
Deburring, to obtain second semi-finished product with location hole 1, to carry out the to the second semi-finished product along second of trimming line b
Secondary deburring, and obtain final required workpiece.During above-mentioned stamped, by location hole 1 in second of deburring
When, precise positioning is provided for stamping parts, to improve the punching precision of stamping parts.
According to some embodiments of the present invention, flanging and restriking work is additionally provided between first time deburring and second of deburring
Sequence.In this way, flange, shaping are carried out to the first semi-finished product, by flanging and restriking process to be satisfied the use demand or be designed
The geometry of standard, intensity and higher second semi-finished product of rigidity.
The manufacturing method of the stamping parts of the embodiment of the present invention is described in detail below.
Firstly, sheet metal component is by tension and compression or strikes out the first semi-finished product, and by formed punch on sheet metal component punching to be formed
For location hole 1, the formed punch axis center d and each cutting edge center e of formed punch of formed punch have certain gap, to ensure formed punch axis center d
It is reasonable with the gap of each cutting edge center e of formed punch, to improve the aperture precision of location hole 1.
In turn, flanging and restriking process is carried out after completing first time deburring pass through location hole in flanging and restriking process
1, with the cooperation of positioning pin, carries out precise positioning to the first semi-finished product, and carries out flange and shaping to the first semi-finished product, and turn over
Side carries out simultaneously with shaping, and the first semi-finished product are processed into shape and are satisfied the use demand and rigidity with higher and intensity
The second semi-finished product.
Finally, second of deburring is carried out to the second semi-finished product, in second of deburring, it is necessary first to certain friendship knife be arranged
It transfer to the second semi-finished product or is cut between different cutters on the same lathe before facilitating second of deburring in gap
Making up for occurred gap is changed, to keep the friendship knife in the entire punching course of stamping parts simpler, conveniently, and is reduced multiple
Punching precision caused by knife is handed over to decline, and then by second of deburring to obtain the workpiece that location hole 1 is removed.
It should be noted that flanging and restriking process can be carried out between first time deburring and second of deburring but be not limited to turn over
Side trimming, and flange carries out or two sides of the second semi-finished product simultaneously with trimming in flanging and restriking process
It carries out shaping simultaneously upwards, and then in order to avoid the interference during flange and shaping progress, makes center and the formed punch of formed punch axis
The center of each cutting edge has certain gap.
In specific embodiment shown in Fig. 1, first time trimming line a intersects with second of trimming line b and common restriction
At least one closed annular region out, location hole 1 are located at least one annular region.After first time deburring as a result,
Two semi-finished product can be by annular region and the detent fit being arranged in location hole 1, to improve punching precision.
Further, the shape of annular region is consistent with the shape of location hole 1, and annular region is formed as lug 2.Its
In, there is location hole 1 in annular region, and the cross-sectional shape of the positioning pin cooperated with location hole 1 is the inscribe of location hole 1
Circle, so that the inner wall and positioning pin with the consistent lug 2 of shape of location hole 1 are tangent, so as to the positioning accuracy of positioning pin is improved,
And further improve the punching precision of stamping parts.
It is understood that the manufacturing method of the stamping parts of the embodiment of the present invention is design process of the inventor in stamping parts
In, it is found that lower the made improvement of stamping parts positioning accuracy in flanging and restriking process, above-mentioned improvement are completed based on punching press
Workpiece possessed by the improvement that is carried out of problem, so the size of first time trimming line a, location hole 1 is in second of deburring
It is determined on the basis of the geometric dimension of the workpiece of line b i.e. finished product.That is, the shape of lug 2 is first time trimming line a
It limits and jointly with second of trimming line b, the shape of location hole 1 and the lug 2 consistent with 1 shape of location hole
Shape is not unique, is triangle in some embodiments, can be in further embodiments other multilateral shapes,
It is also possible to circular.
In this way, making 1 polygon of location hole, and keep at least one edge of location hole 1 parallel with second of trimming line b
And the shape at remaining each edge of location hole 1 is consistent with first time trimming line a.Work is formed by after not only making second of deburring
The molding effect of part is more preferable, and keeps the determination of the size of the first trimming line and location hole 1 more accurate, and the manufacture of stamping parts is more
Add simple, conveniently.
As depicted in figs. 1 and 2, location hole 1 is isosceles triangle, and second of trimming line b is the bottom edge with isosceles triangle
Parallel straight line, first time trimming line a include first straight line section a1, second straight line section a2 and third straightway a3, and first is straight
Line segment a1 is parallel with a stringcourse of location hole 1, and second straight line section a2 is parallel with another stringcourse of location hole 1, third straight line
A3 is in the two sides of second of trimming line b for section.
Specifically, first time trimming line a and location hole 1 define the general profile and lug 2 of workpiece, second
Trimming line b and first time trimming line a define the integrity profile of workpiece jointly.In this way, passing through first time deburring, flanging and restriking
Workpiece required for process and second of deburring are available, and the forming degree of workpiece is higher, and precision is higher.
Optionally, there is fillet, the circle between the bottom edge of location hole 1 and each stringcourse between the adjacent side of location hole 1
Angle is greater than the fillet between two stringcourses, and first straight line section a1 is connected with second straight line section a2 by the first arc section a4, positions
Be h1 at a distance from one side in hole 1 and the first straight line section a1 for being parallel to the side, another side of location hole 1 with it is parallel
It is h2 in the distance of the second straight line section a2 of the side, the spacing of the fillet between the first arc section a4 and two stringcourses is h3,
Wherein h3 > h2, h2=h1.
In this way, the fillet being not only rationally arranged can to avoid cracking in workpiece punching course, improve the forming degree of workpiece with
And Forming Quality, and the length of h3 is less than h1 and h2, and the drawing effect of first time semi-finished product is more preferable when making first time deburring, with
Guarantee the cooperation precision of location hole 1 and positioning pin.
Into one, h3 is 1.a-1.5 times of h2.Make as a result, spacing between the first arc section a4 and two stringcourses and
The side of location hole 1 is more reasonable at a distance from first straight line section a1 or second straight line section a2, and then improves punching press effect.
The semi-finished product of the stamping parts of embodiment according to a second aspect of the present invention, semi-finished product have lug 2 and are located at lug 2
On location hole 1, lug 2 be suitable for be removed in last one of trimming process step.
The semi-finished product of stamping parts according to an embodiment of the present invention are adapted, Jin Ertong with the manufacturing method of above-mentioned stamping parts
It crosses the manufacturing method of above-mentioned stamping parts and uses the semi-finished product, can not only produce and satisfy the use demand and molding effect is more preferable
Workpiece, and the yield rate of workpiece can be improved.
In the following, describing the stamping parts of the embodiment of the present invention referring to Figures 1 and 2 in the form of a specific embodiment
Manufacturing method.
As depicted in figs. 1 and 2, second of trimming line b is determined according to finished work-piece, so that it is determined that first time trimming line a with
And the specific size of location hole 1, and then follow the steps below to complete the preparation of workpiece.
Firstly, sheet metal component is by tension and compression or strikes out the first semi-finished product, and rush on sheet metal component by formed punch and having a size of
The circumscribed equilateral triangle of the location hole 1 of φ 16 specifies the formed punch axis center d of formed punch consistent with the center of equilateral triangle,
The center of specified each cutting edge center e of formed punch and equilateral triangle has the gap of 1.5mm, to ensure formed punch axis center d and formed punch
The gap of each cutting edge center e is reasonable, to improve the aperture precision of location hole 1.
So that the friendship knife gap of 0.5mm is arranged, on the bottom edge of equilateral triangle to facilitate friendship when second of deburring
Knife, and behind the setting gap 0.5mm, an isosceles triangle is formed in equilateral triangle line, the bottom edge of isosceles triangle is repaired with secondary
Sideline is parallel, and the first arc section a4 falls the fillet of R5mm, two fillets for falling R3mm between stringcourse and bottom edge, and determining and isosceles
The corresponding first time trimming line a of triangle and product position the positioning pin of spare φ 15.9mm.
In turn, flanging and restriking process is carried out after completing first time deburring, in flanging and restriking process, to the first half at
Product carry out overturning positioning, and the positioning pin of φ 15.9mm is equipped in the upper mold (lower die) of press machine, is corresponded in lower die (upper mold)
It is provided with the through-hole passed through for positioning pin, so that positioning pin passes through location hole 1 and through-hole, to carry out essence to the first semi-finished product
Certainly position, and flange and shaping are carried out to the first semi-finished product, by the first semi-finished product be processed into shape satisfy the use demand and
Second semi-finished product of rigidity and intensity with higher.
Finally, carrying out second of deburring to the second semi-finished product, in second of deburring, carried out according to the friendship knife gap of setting
Knife is handed over, and location hole 1 is removed by second of deburring, obtains complete workpiece.Wherein, second of deburring can be with flanging and restriking
Process carries out simultaneously.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the structure of indication or suggestion meaning or unit must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.In addition, limit
There is the feature of " first ", " second " to can explicitly or implicitly include one or more of the features surely.Of the invention
In description, unless otherwise indicated, the meaning of " plurality " is two or more.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are included at least one embodiment or example of the invention.In the present specification, to above-mentioned term
Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can be combined in any suitable manner in any one or more of the embodiments or examples.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (10)
1. a kind of manufacturing method of stamping parts, which is characterized in that including：
Punching press obtains the first semi-finished product, and first semi-finished product have location hole；
First time deburring is carried out to first semi-finished product along first time trimming line, obtains the second semi-finished product；
The location hole is between the first time trimming line and second of trimming line, along second of trimming line to described
Second semi-finished product carry out second of deburring, obtain the workpiece without location hole.
2. the manufacturing method of stamping parts according to claim 1, which is characterized in that in first time deburring and second of deburring
Between be additionally provided with flanging and restriking process.
3. the manufacturing method of stamping parts according to claim 1, which is characterized in that the first time trimming line and described the
Secondary trimming line intersects and limits at least one closed annular region jointly, and the location hole is located at least one described ring
In shape region.
4. the manufacturing method of stamping parts according to claim 3, which is characterized in that the shape of the annular region with it is described
The shape of location hole is consistent.
5. the manufacturing method of stamping parts according to claim 3, which is characterized in that the annular region is formed as lug.
6. the manufacturing method of stamping parts according to claim 1, which is characterized in that the location hole is polygon, described
The shape at remaining each edge of at least one edge of the location hole location hole parallel and described with second of trimming line with
The first time trimming line is consistent.
7. the manufacturing method of stamping parts according to claim 6, which is characterized in that the location hole is isosceles triangle,
Second of trimming line is the straight line parallel with the bottom edge of the isosceles triangle, and the first time trimming line includes first straight
Line segment, second straight line section and third straightway, the first straight line section is parallel with a stringcourse of the location hole, and described
Two straightways are parallel with another stringcourse of the location hole, and the third straightway is in the two sides of second of trimming line.
8. the manufacturing method of stamping parts according to claim 6, which is characterized in that between the adjacent side of the location hole
With fillet, the fillet between the bottom edge of the location hole and each stringcourse is greater than the fillet between two stringcourses；
The first straight line section is connected with the second straight line section by the first arc section, a side of the location hole and flat
Row is h1 in the distance of the first straight line section of the side, another side of the location hole be parallel to the side it is second straight
The distance of line segment is h2, and the spacing of the fillet between first arc section and two stringcourses is h3, wherein h3 > h2, h2=
h1。
9. the manufacturing method of stamping parts according to claim 3, which is characterized in that h3 is 1.2-1.5 times of h2.
10. a kind of semi-finished product of stamping parts, which is characterized in that the semi-finished product have lug and determine on the lug
Position hole, the lug are suitable for being removed in last one of trimming process step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810698729.9A CN108889836A (en) | 2018-06-29 | 2018-06-29 | The manufacturing method of stamping parts and the semi-finished product of stamping parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810698729.9A CN108889836A (en) | 2018-06-29 | 2018-06-29 | The manufacturing method of stamping parts and the semi-finished product of stamping parts |
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| CN108889836A true CN108889836A (en) | 2018-11-27 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810698729.9A Pending CN108889836A (en) | 2018-06-29 | 2018-06-29 | The manufacturing method of stamping parts and the semi-finished product of stamping parts |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110421065A (en) * | 2019-07-05 | 2019-11-08 | 华域汽车车身零件（上海）有限公司 | A kind of flange and edge-neatening craftwork by hole pin cooperation positioning |
| CN111390206A (en) * | 2020-03-05 | 2020-07-10 | 烟台艾迪精密机械股份有限公司 | Numerical control blade blank and method for quickly aligning inscribed circle thereof |
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| CN102343405A (en) * | 2011-06-28 | 2012-02-08 | 天津汽车模具股份有限公司 | Positioning method for stamping automobile outer panel covering part |
| CN102615176A (en) * | 2012-03-28 | 2012-08-01 | 奇瑞汽车股份有限公司 | Novel outer covering component positioning method |
| CN106734570A (en) * | 2016-12-20 | 2017-05-31 | 柳州通为机械有限公司 | A kind of mould punching process in automobile panel |
| CN106944537A (en) * | 2017-03-30 | 2017-07-14 | 柳州职业技术学院 | The fabrication hole and localization method of process after in a kind of gentle cladding element punching production of shape |
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| CN102343405A (en) * | 2011-06-28 | 2012-02-08 | 天津汽车模具股份有限公司 | Positioning method for stamping automobile outer panel covering part |
| CN102615176A (en) * | 2012-03-28 | 2012-08-01 | 奇瑞汽车股份有限公司 | Novel outer covering component positioning method |
| CN106734570A (en) * | 2016-12-20 | 2017-05-31 | 柳州通为机械有限公司 | A kind of mould punching process in automobile panel |
| CN106944537A (en) * | 2017-03-30 | 2017-07-14 | 柳州职业技术学院 | The fabrication hole and localization method of process after in a kind of gentle cladding element punching production of shape |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110421065A (en) * | 2019-07-05 | 2019-11-08 | 华域汽车车身零件（上海）有限公司 | A kind of flange and edge-neatening craftwork by hole pin cooperation positioning |
| CN111390206A (en) * | 2020-03-05 | 2020-07-10 | 烟台艾迪精密机械股份有限公司 | Numerical control blade blank and method for quickly aligning inscribed circle thereof |
| CN111390206B (en) * | 2020-03-05 | 2021-07-09 | 烟台艾迪精密机械股份有限公司 | Numerical control blade blank and method for quickly aligning inscribed circle thereof |
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