CN113210505A - Groove-shaped hole flanging process - Google Patents
Groove-shaped hole flanging process Download PDFInfo
- Publication number
- CN113210505A CN113210505A CN202110667874.2A CN202110667874A CN113210505A CN 113210505 A CN113210505 A CN 113210505A CN 202110667874 A CN202110667874 A CN 202110667874A CN 113210505 A CN113210505 A CN 113210505A
- Authority
- CN
- China
- Prior art keywords
- convex
- hole
- flanging
- convex hull
- forming
- 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
Images
Classifications
-
- 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
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/08—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
- B21D19/088—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws for flanging holes
-
- 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
Abstract
The invention provides a groove-shaped hole flanging process, which improves the dimensional accuracy stability of products, realizes mass production in a short time, saves the cost and improves the market competitiveness of the products. The method comprises the following process steps: a, at least two convex hull forming stations are arranged, the convex hull forming stations are used for prefabricating convex hulls on the surface of a plate, and the next convex hull forming station is contracted relative to the previous convex hull forming station to form a shape which is imitated in a set groove-shaped flanging hole; b, punching the groove-shaped part through the punching station after the convex hull forming of the convex hull forming station is finished; c, forming the R angle of the hole flanging end of the punched hole through a R angle forming work station of the hole flanging end; d, performing hole flanging height forming through a hole flanging height forming station; and e, finally, carrying out hole flanging and shaping through a hole flanging and shaping work station, so that the groove-shaped hole flanging is manufactured and molded.
Description
Technical Field
The invention relates to the technical field of automobile supports, in particular to a groove-shaped hole flanging process.
Background
Among the supporting structure that the car on the existing market used, including cell type hole flanging product support, the cell type hole flanging on the support of prior art accomplishes through the manufacturing process of four processes, and its first station is for punching a hole in advance, and the second station is for pressing deckle edge, and the third station is for the hole flanging, and fourth station cell type hole flanging plastic. Such an operation process has the following problems, one of which is: due to material reasons, the pre-punched hole diameters are different, the height of the groove-shaped hole flanging is abnormal and unstable, and unstable factors such as head cracking and the like can occur during hole flanging at the third station; this requires a lot of time and cost for debugging the mold and for product precision processing and the like. Aiming at the current situations, a stable process which can save cost and improve production efficiency and product precision is urgently needed to be developed aiming at a groove-type hole flanging process.
Disclosure of Invention
Aiming at the problems, the invention provides a groove-shaped hole flanging process which improves the dimensional accuracy stability of products, realizes mass production in a short time, saves the cost and improves the market competitiveness of the products.
A groove-shaped hole flanging process is characterized by comprising the following process steps:
a, at least two convex hull forming stations are arranged, the convex hull forming stations are used for prefabricating convex hulls on the surface of a plate, and the next convex hull forming station is contracted relative to the previous convex hull forming station to form a shape which is imitated in a set groove-shaped flanging hole;
b, punching the groove-shaped part through the punching station after the convex hull forming of the convex hull forming station is finished;
c, forming the R angle of the hole flanging end of the punched hole through a R angle forming work station of the hole flanging end;
d, performing hole flanging height forming through a hole flanging height forming station;
and e, finally, carrying out hole flanging and shaping through a hole flanging and shaping work station, so that the groove-shaped hole flanging is manufactured and molded.
It is further characterized in that:
the forming device is provided with at least three convex hull forming work stations, wherein a first convex hull forming work station forms a first downward convex part which is downward convex in the position area of a groove-shaped flanging hole, the downward convex direction of the first downward convex part is arranged corresponding to the direction of the flanging hole, the cross section of the first downward convex part is semicircular downward convex, the first downward convex part and the peripheral edge part of a plate are in circular arc transition, the circular arc transition radius is larger than the preset groove-shaped flanging hole and the set transition size of the plate, and then the first downward convex part is gradually contracted through the subsequent convex hull forming work stations to form the shape which is profiled on the set groove-shaped flanging hole;
the last convex hull forming work station forms a bottom plane structure at the bottom of the first lower convex part, and the bottom plane structure and the peripheral lower convex vertical surface form a guide arc edge, so that punching of the next work station is facilitated;
preferably, four convex hull forming stations are arranged, namely a first convex hull forming station, a second convex hull forming station, a third convex hull forming station and a fourth convex hull forming station, wherein the first convex hull forming station forms a first downward convex part which is downward convex in the arrangement area of the groove-shaped flanging hole, the second convex hull forming station shrinks the shape and the downward convex height of the first downward convex part to form a second downward convex part, the third forming station shrinks the shape and the downward convex height of the second downward convex part to form a third downward convex part, the fourth forming station shrinks the shape and the downward convex height of the third downward convex part to form a fourth downward convex part with a plane bottom, and the bottom plane structure of the fourth downward convex part and the downward convex vertical surface of the periphery form guide arc edges.
After the technical scheme is adopted, the groove body part needing to be punched is arranged in a convex hull mode through at least two convex hull forming work stations in advance, then different convex hull forming structures with convex hull shrinkage each time are arranged according to the characteristics of materials, so that the convex part of the last convex hull forming work station is modeled in the shape of the set groove-shaped flanging hole, then the convex part of the convex hull is punched to cut off the corresponding area, which prevents the product from tearing and excessive deformation in the punching process, then the R angle of the punched hole flanging end is formed by the R angle forming station of the hole flanging end, the hole flanging height is formed by the hole flanging height forming station, the hole flanging shaping is carried out by the hole flanging shaping station, and the groove-shaped hole flanging is formed, the method improves the dimensional accuracy stability of the product, realizes mass production in a short time, saves the cost and improves the market competitiveness of the product.
Drawings
FIG. 1 is a schematic structural view (including dimensions) of a grooved burr hole to be processed according to the present invention;
FIG. 2 is a top view of a process flow diagram (including dimensions) of an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a process flow diagram (including dimensions) for an embodiment of the present invention; the names corresponding to the sequence numbers in the figure are as follows:
a groove-shaped flanging hole 100, a first lower convex part 10, a second lower convex part 20, a third lower convex part 30 and a fourth lower convex part 40.
Detailed Description
A groove-shaped hole flanging process comprises the following specific steps:
a, at least two convex hull forming stations are arranged, the convex hull forming stations are used for prefabricating convex hulls on the surface of a plate, and the next convex hull forming station is contracted relative to the previous convex hull forming station to form a shape which is imitated in a set groove-shaped flanging hole;
b, punching the groove-shaped part through the punching station after the convex hull forming of the convex hull forming station is finished;
c, forming the R angle of the hole flanging end of the punched hole through a R angle forming work station of the hole flanging end;
d, performing hole flanging height forming through a hole flanging height forming station;
and e, finally, carrying out hole flanging and shaping through a hole flanging and shaping work station, so that the groove-shaped hole flanging is manufactured and molded.
In a specific embodiment, the product needs to be processed to form the groove-shaped flanging hole 100 shown in fig. 1, and the plate corresponding to the position of the groove-shaped flanging hole 100 faces downward, so that the flanging hole is arranged downward, the overall height of the flanging hole is 4.2mm, the radius of the R corner of the flanging hole end of the flanging hole is 1.2mm, and the radius of the arc surface of the inner side wall of the flanging hole is 2.5 mm.
The specific process flow is shown in the figure 2-figure 3: the forming device is provided with four convex hull forming work stations which are respectively a first convex hull forming work station, a second convex hull forming work station, a third convex hull forming work station and a fourth convex hull forming work station, wherein the first convex hull forming work station forms a first downward convex part 10 which is downward convex in a setting area of a groove-shaped flanging hole, the second convex hull forming work station shrinks the shape and the downward convex height of the first downward convex part 10 to form a second downward convex part 20, the third forming work station shrinks the shape and the downward convex height of the second downward convex part 20 to form a third downward convex part 30, the fourth forming work station shrinks the shape and the downward convex height of the third downward convex part 30 to form a fourth downward convex part 40 with a plane bottom, and the bottom plane structure of the fourth downward convex part 40 and the downward convex surface of the periphery form a guide arc edge.
In specific implementation, the downward convex direction of the first downward convex part 10 is arranged corresponding to the orientation of the flanging hole, the first downward convex part 10 is in a semicircular downward convex shape in the cross section state, the radius of the semicircular downward convex shape is 8mm, the height of the downward convex shape is 6.7mm, the first downward convex part 10 and the peripheral plate edge part are in arc transition, the radius of the arc transition is 3mm, the radius of the arc transition is larger than the preset groove-shaped flanging hole and the set transition size of the plate, and then the first downward convex part is gradually contracted through a subsequent second convex hull forming work station, a third convex hull forming work station and a fourth convex hull forming work station to form a shape which is profiled on the set groove-shaped flanging hole to form a fourth downward convex part;
the second convex hull forming work station levels the bottom of the first lower convex part 10 and moves upwards, so that the whole second lower convex part 20 is formed into a trapezoidal structure with 40-degree openings of vertical plates on two sides, the lower convex height of the second lower convex part 20 is 5.2mm, the radius of an arc transition edge between the bottom of the second lower convex part 20 and the vertical plates on two sides is 3mm, and the radius of the arc transition between the second lower convex part 20 and the edge of a plate is 2 mm;
the third convex hull forming work station integrally moves the bottom of the second convex downward part 20 upwards, so that the whole third convex downward part 30 is formed into a trapezoidal structure with 6-degree openings of vertical plates at two sides, the convex height of the third convex downward part 30 is 4.4mm, the radius of an arc transition edge between the bottom of the third convex downward part 30 and the vertical plates at two sides is 2.5mm, and the arc transition radius between the third convex downward part 30 and the edge of the plate is 1 mm;
the fourth convex hull forming station moves the bottom of the third convex hull part 30 upwards integrally, so that the convex height of the fourth convex hull part 40 is 2.9mm, the radius of an arc transition edge between the bottom of the fourth convex hull part 40 and vertical plates at two sides is 1mm, and the arc transition radius of the fourth convex hull part 40 and the edge of the plate is 0.5 mm;
punching the groove-shaped part through a punching station, and punching out the bottom plane structure of the fourth lower convex part 40;
forming an R angle of an inner edge part of the hole flanging end of the punched hole through a hole flanging end part R angle forming work station;
forming the hole flanging height through a hole flanging height forming work station, so that the inner wall and the outer wall of the hole flanging form arc-shaped parts, and the bottom of each arc-shaped part deforms outwards;
and finally, hole flanging and shaping are carried out through a hole flanging and shaping work station, so that the integral height of the hole flanging is 4.2mm, the radius of the R angle of the hole flanging end of the hole flanging is 1.2mm, the radius of the arc surface of the inner side wall of the hole flanging is 2.5mm, and groove-shaped hole flanging is manufactured and shaped.
The working principle is as follows: the groove body part needing to be punched out is arranged in a convex hull manner in advance through at least two convex hull forming work stations, then different convex hull forming structures with convex hull shrinkage at each time are arranged according to the characteristics of materials, the convex part of the last convex hull forming work station is made to be in a shape of a set groove-shaped flanging hole in a copying manner, then the convex part of the convex hull is punched out of a corresponding region, the product is prevented from being torn and excessively deformed in the punching process, then the R angle of the punched hole flanging end is formed through the R angle forming work station of the flanging hole end part, hole flanging height forming is performed through the hole flanging height forming work station, hole flanging shaping is performed through the hole flanging shaping work station, and groove-shaped flanging hole manufacturing and forming are achieved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (4)
1. A groove-shaped hole flanging process is characterized by comprising the following process steps:
a, at least two convex hull forming stations are arranged, the convex hull forming stations are used for prefabricating convex hulls on the surface of a plate, and the next convex hull forming station is contracted relative to the previous convex hull forming station to form a shape which is imitated in a set groove-shaped flanging hole;
b, punching the groove-shaped part through the punching station after the convex hull forming of the convex hull forming station is finished;
c, forming the R angle of the hole flanging end of the punched hole through a R angle forming work station of the hole flanging end;
d, performing hole flanging height forming through a hole flanging height forming station;
and e, finally, carrying out hole flanging and shaping through a hole flanging and shaping work station, so that the groove-shaped hole flanging is manufactured and molded.
2. A slot-type hole flanging process as claimed in claim 1, characterized in that: the forming device is provided with at least three convex hull forming work stations, a first convex hull forming work station forms a first downward convex part which is downward convex in a position area of a groove-shaped flanging hole, the downward convex direction of the first downward convex part is arranged corresponding to the orientation of the flanging hole, the cross section of the first downward convex part is semicircular downward convex, the first downward convex part and the peripheral edge part of a plate are in circular arc transition, the circular arc transition radius is larger than the preset groove-shaped flanging hole and the set transition size of the plate, and then the first downward convex part is gradually contracted through the subsequent convex hull forming work stations to form a shape which is profiled in the set groove-shaped flanging hole.
3. A slot-type hole flanging process as claimed in claim 2, characterized in that: and the last convex hull forming work station forms a bottom plane structure at the bottom of the first lower convex part, and the bottom plane structure and the peripheral lower convex vertical surface form a guide arc edge, so that the punching of the next work station is facilitated.
4. A slot-type hole flanging process as claimed in claim 1, characterized in that: the forming device is provided with four convex hull forming work stations which are respectively a first convex hull forming work station, a second convex hull forming work station, a third convex hull forming work station and a fourth convex hull forming work station, wherein the first convex hull forming work station forms a downward convex first downward convex part in a setting area of a groove-shaped flanging hole, the second convex hull forming work station shrinks the shape and the downward convex height of the first downward convex part to form a second downward convex part, the third forming work station shrinks the shape and the downward convex height of the second downward convex part to form a third downward convex part, the fourth forming work station shrinks the shape and the downward convex height of the third downward convex part to form a fourth downward convex part with the bottom being a plane, and the bottom plane structure of the fourth downward convex part and the downward convex vertical surface of the periphery form a guide arc edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110667874.2A CN113210505A (en) | 2021-06-16 | 2021-06-16 | Groove-shaped hole flanging process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110667874.2A CN113210505A (en) | 2021-06-16 | 2021-06-16 | Groove-shaped hole flanging process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113210505A true CN113210505A (en) | 2021-08-06 |
Family
ID=77080744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110667874.2A Pending CN113210505A (en) | 2021-06-16 | 2021-06-16 | Groove-shaped hole flanging process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113210505A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114029376A (en) * | 2021-12-02 | 2022-02-11 | 联德精密材料（中国）股份有限公司 | Cover hole flanging process |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102500670A (en) * | 2011-10-17 | 2012-06-20 | 东莞市祥鑫汽车模具制品有限公司 | Flanged hole processing method for hole flanging structure of special specifications |
| CN203830562U (en) * | 2014-05-29 | 2014-09-17 | 苏州瑞玛金属成型有限公司 | Forming die for flanging automobile safety buckle |
| CN205463928U (en) * | 2016-03-03 | 2016-08-17 | 武汉日晗精密机械有限公司 | Prevent mould of high hole flanging fracture |
| CN205519242U (en) * | 2016-02-22 | 2016-08-31 | 爱德夏汽车零部件（昆山）有限公司 | Mould enstrophe casement utensil |
| CN107214230A (en) * | 2017-06-14 | 2017-09-29 | 江苏博俊工业科技股份有限公司 | Hole flanging wall thickness is more than the moulding process of material stock thickness |
| CN206824513U (en) * | 2017-04-25 | 2018-01-02 | 日晗精密机械(昆山)有限公司 | A kind of thick material thin-walled hole flanging mold |
| CN109201932A (en) * | 2018-09-12 | 2019-01-15 | 上海申驰实业有限公司 | A kind of auto parts and components hole flanging method |
| CN111438276A (en) * | 2020-04-16 | 2020-07-24 | 苏州利来汽车配件有限公司 | High-strength steel plate forming hole flanging die for automobile and hole flanging process thereof |
| CN112296158A (en) * | 2020-09-28 | 2021-02-02 | 首钢集团有限公司 | Integrated nut plate punch forming process |
-
2021
- 2021-06-16 CN CN202110667874.2A patent/CN113210505A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102500670A (en) * | 2011-10-17 | 2012-06-20 | 东莞市祥鑫汽车模具制品有限公司 | Flanged hole processing method for hole flanging structure of special specifications |
| CN203830562U (en) * | 2014-05-29 | 2014-09-17 | 苏州瑞玛金属成型有限公司 | Forming die for flanging automobile safety buckle |
| CN205519242U (en) * | 2016-02-22 | 2016-08-31 | 爱德夏汽车零部件（昆山）有限公司 | Mould enstrophe casement utensil |
| CN205463928U (en) * | 2016-03-03 | 2016-08-17 | 武汉日晗精密机械有限公司 | Prevent mould of high hole flanging fracture |
| CN206824513U (en) * | 2017-04-25 | 2018-01-02 | 日晗精密机械(昆山)有限公司 | A kind of thick material thin-walled hole flanging mold |
| CN107214230A (en) * | 2017-06-14 | 2017-09-29 | 江苏博俊工业科技股份有限公司 | Hole flanging wall thickness is more than the moulding process of material stock thickness |
| CN109201932A (en) * | 2018-09-12 | 2019-01-15 | 上海申驰实业有限公司 | A kind of auto parts and components hole flanging method |
| CN111438276A (en) * | 2020-04-16 | 2020-07-24 | 苏州利来汽车配件有限公司 | High-strength steel plate forming hole flanging die for automobile and hole flanging process thereof |
| CN112296158A (en) * | 2020-09-28 | 2021-02-02 | 首钢集团有限公司 | Integrated nut plate punch forming process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114029376A (en) * | 2021-12-02 | 2022-02-11 | 联德精密材料（中国）股份有限公司 | Cover hole flanging process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108372234B (en) | End cover forming processing method and stretching forming die thereof | |
| CN106734780B (en) | Ripple spring molded blank, molding die and processing method | |
| CN113210505A (en) | Groove-shaped hole flanging process | |
| CN112122450A (en) | Method for forming convex hull at flanging position of metal stamping part and special stamping die set | |
| JP3673152B2 (en) | Fixed member, commutator forming plate material, and manufacturing method thereof | |
| CN213350443U (en) | Cold stamping disc part and forming progressive die thereof | |
| JP2000153313A (en) | Incremental pressing and forming device | |
| CN114945434A (en) | Press forming method | |
| CN207057429U (en) | Efficient U-shaped board stamping jig | |
| CN113680895B (en) | Forming method of complex cylindrical part | |
| CN112693270B (en) | Rear shock absorber mounting plate, stamping die and stamping process thereof, and vehicle | |
| CN210614829U (en) | Mould of electron end cover continuous production | |
| JPH0687039A (en) | Burring method | |
| CN208542815U (en) | A kind of stamping die group of pedal assembly L-type support | |
| CN109175176B (en) | automobile parts and production process thereof | |
| CN113102622A (en) | Integral forming method of circumferential wave-shaped piece | |
| CN110976637A (en) | Forming die and forming method for upper angle arm and angle arm base for antenna installation | |
| CN220837473U (en) | A unloading mould for car front row headrest installing support | |
| CN114029376B (en) | Cover hole flanging process | |
| KR20010067834A (en) | Forming method the many step form possible press one stroke and the tool equipment | |
| KR100479917B1 (en) | Press which carries out forming and piercing process simult aneously and manufacturing method of cooling plate of heatexchangor by using the same | |
| JP4009229B2 (en) | Method and apparatus for manufacturing a plate-shaped metal product in which rising portions are integrally formed | |
| CN210547341U (en) | Progressive die for forming stator and rotor of motor | |
| CN213763686U (en) | Forming die of cushion sideboard | |
| CN216857918U (en) | Annular trimming mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210806 |