CN115608854A - Technological method and mould for improving top cover antenna hole position surface product - Google Patents
Technological method and mould for improving top cover antenna hole position surface product Download PDFInfo
- Publication number
- CN115608854A CN115608854A CN202210986198.XA CN202210986198A CN115608854A CN 115608854 A CN115608854 A CN 115608854A CN 202210986198 A CN202210986198 A CN 202210986198A CN 115608854 A CN115608854 A CN 115608854A
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- die
- antenna hole
- wedge
- top cover
- shaping
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- 238000000034 method Methods 0.000 title claims abstract description 73
- 238000007493 shaping process Methods 0.000 claims abstract description 39
- 238000009434 installation Methods 0.000 claims abstract description 6
- 238000003825 pressing Methods 0.000 claims description 14
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract description 8
- 235000013312 flour Nutrition 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000004040 coloring Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
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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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- 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
- B21D22/22—Deep-drawing with devices for holding the edge of the blanks
-
- 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
- B21D53/00—Making other particular articles
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention discloses a technological method for improving a top cover antenna hole position surface product and a die thereof, belonging to the technical field of dies. The process method adopts the steps that the antenna hole mounting surface is not formed during the first-order drawing forming, so that the smoothness of the plate at the position is ensured, and the condition of uneven material feeding in the forming process is avoided; and in the third shaping procedure, an upward shaping procedure of the antenna hole installation surface is added. The process method can effectively solve the problem that the drawn flour product at the position of the antenna hole of the top cover is difficult to eliminate, so that the defects are generated in the subsequent process and solved in the subsequent process, the defects are easier to solve, the risk is smaller, and the debugging cost is lower.
Description
Technical Field
The invention belongs to the technical field of dies, and particularly relates to a technological method for improving a top cover antenna hole position surface product and a die thereof.
Background
With the widespread hot selling of automobiles in China, various sizes and types of automobiles are released by various automobile manufacturers, and a top cover outer plate is particularly important in the automobile type and has a strict matching relation with main components such as a rear cover, a side wall and the like. In order to ensure the molding characteristics of the outer plate of the top cover and the molding quality of products in the molding process of each working procedure of a stamping die, research needs to be carried out on the appearance ridge line and the surface quality of the outer plate of the top cover, and a breakthrough is made in the stamping process so as to realize the shape characteristics of the products.
In the stamping process of the existing automobile panel top cover part, the drawing forming is an indispensable process, for the top cover part, due to the arch structure with high middle and low two ends, in the drawing process, the high middle part can be formed firstly, the low two ends are formed later, the antenna hole is located in the tail area, after the upper die and the lower die in the middle area of the top cover are contacted and formed firstly, the upper die and the lower die in the position of the tail antenna hole are contacted and formed to the panel, the formed A surface near the antenna hole is influenced, the A surface in the area near the antenna hole generates surface defects, and for the outer panel part, the A surface defects are not allowed to appear on the product.
Therefore, the existing top cover outer plate antenna hole mounting surface adopts a mode of directly forming in place in a drawing process, so that the problem that the antenna hole mounting surface accessory generates a surface product is the first 'stubborn' in the problem of the surface product of the top cover product, the reason is that the quality of the product is influenced because the material is not uniform in the forming process of the plate around the boss of the antenna hole mounting surface, and the defects cannot be eliminated and can only be optimized as far as possible through forced compression coloring because of the reasons generated by the defects.
Disclosure of Invention
Aiming at the problems that the quality of a finished piece is affected by the problem of serious surface product caused by uneven material feeding in the forming process of a plate material in the prior art, the invention aims to provide a technological method and a mould for improving the surface product at the position of a top cover antenna hole, wherein the technological method adopts the steps of not forming an antenna hole mounting surface in the first-order drawing forming process, ensuring the smoothness of the plate material at the position and avoiding the uneven material feeding in the forming process; and in the third shaping procedure, an upward shaping procedure of the antenna hole installation surface is added. The process method can effectively solve the problem that the drawn flour product at the position of the antenna hole of the top cover is difficult to eliminate, so that the defects are generated in the subsequent process, the defects are easier to solve, the risk is lower, and the debugging cost is lower.
The invention is realized by the following technical scheme:
in a first aspect, the invention provides a technological method for improving a top cover antenna hole position surface product, which comprises the steps of drawing forming and upward shaping, wherein the drawing forming step is used for forming a drawn part without an antenna hole installation surface, and the upward shaping step is used for completing the forming of the antenna hole installation surface.
Further, the process method for improving the top cover antenna hole position surface product comprises the following specific steps:
s1: forming a drawn part without an antenna hole mounting surface by the flat plate under the action of the drawing upper female die and the drawing lower male die;
s2: and the shaping convex die insert arranged on the working wedge is driven to be in place through the action of the driving wedge, and the shaping convex die insert and the concave die insert arranged on the upper pressure plate are used for finishing the shaping of the antenna hole mounting surface of the plate under the combined action.
Further, the step S1 specifically includes the following steps:
when the die works, a flat material is placed on the pressure ring, the drawing upper female die is installed on the drawing upper die body and moves downwards simultaneously with the drawing upper die body under the action of the press sliding block, the drawing upper female die is in contact with the pressure ring to form a drawing rib, the flow of the plate is controlled, and when a bottom dead center is reached, a drawing workpiece which does not comprise the boss of the antenna hole installation surface is formed by the drawing upper female die and the drawing lower female die.
Further, the step S2 specifically includes the following steps:
the upper-procedure workpiece is placed on a lower male die, fine positioning is provided for the workpiece through a positioning pin, an upper pressure plate moves downwards along with an upper die body, a die insert and an adjusting gasket are mounted on the upper pressure plate through screws, the upper pressure plate reaches a bottom dead center after contacting with a plate material, the upper die body continues to move downwards, an upper air cushion of a press provides pressure force for the upper pressure plate through an upper striking rod, after the stroke of the upper pressure plate is released, a dead block mounted on the upper pressure plate is contacted with the upper die body to ensure the rigidity of the upper pressure plate, the workpiece pressure-pressing process is completed, a driving wedge starts to work, a shaping male die is mounted on a working wedge and moves upwards along the wedge direction under the action of the driving wedge, the die insert moves downwards along with the upper die body to the bottom, the shaping male die insert and the die insert form an antenna hole mounting surface in place, and the wedge shaping work is completed.
Further, in the step S2, the molding height of the antenna hole may be adjusted by an adjusting shim disposed between the upper pressing plate and the die insert.
In a second aspect, the invention provides a drawing die for improving a top cover antenna hole position surface product, which comprises a drawing lower convex die 1, a drawing lower die body 2, a drawing upper die body 3, a drawing upper concave die 4 and a material pressing ring 5; the drawing upper female die 4 is arranged on the drawing upper die body 3, the drawing lower male die 1 is arranged on the drawing lower die body 2, and the material pressing ring 5 moves in the lower die body 2 through a guide element and a limiting element and is used for placing a flat material; and the drawing upper female die 4 and the drawing lower male die 1 are matched to form a drawing part which does not comprise a boss on the mounting surface of the antenna hole.
In a third aspect, the invention also provides an upward shaping die for improving the technical method of the top cover antenna hole position surface product, which comprises an upper die body 6, a lower die body 7, an upper pressure plate 8, a lower punch 9, an upper knock pin 10, a working wedge 11, a female die insert 12, a shaping punch insert 14, a driving wedge 15, an adjusting gasket 16 and a dead-heading cushion block 17; the upper pressure plate 8 is arranged on the upper die body 6, the lower die 9 is arranged on the lower die body 7, the die insert 12, the adjusting gasket 16 and the blocking cushion block 17 are all arranged on the upper pressure plate 8 through screws, the upper striking rod 10 is arranged on the upper pressure plate 8, the shaping punch insert 14 is arranged on the working wedge 11, and the working wedge 11 moves in the lower die body 7 under the action of the guide element and the driving wedge 15; the driving wedge 15 is positioned below the working wedge 11, and the working wedge 11 is driven to move reversely along the punching direction under the action of the upper bottom plate.
Further, the upward reshaping die further comprises a positioning pin 13 for providing fine positioning and fixing for the workpiece.
Compared with the prior art, the invention has the following advantages:
1. the process method adopts the drawing non-forming antenna hole mounting surface, can effectively reduce the drawing work content, reduce the field debugging dosage and improve the quality of the drawing die and the drawing workpiece;
2. the antenna hole mounting surface is formed upwards in the subsequent process, so that the position can be conveniently adjusted in size, and the size can be adjusted in the shaping process;
3. the antenna hole mounting surface is formed upwards in the subsequent process, so that the problem of surface products at the position is optimized, the rectification and drawing are avoided, and the rectification and reforming cost is greatly reduced.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic flow chart of a process for improving a top cover antenna hole position surface product according to the present invention;
FIG. 2 is a cross-sectional view of a drawing die configuration for use with the present invention;
FIG. 3 is a cross-sectional view of an upward sizing die configuration for use with the present invention;
wherein: the drawing lower male die comprises a drawing lower male die 1, a drawing lower die body 2, a drawing upper die body 3, a drawing upper female die 4 and a material pressing ring 5;
the die comprises an upper die body 6, a lower die body 7, an upper pressure plate 8, a lower punch 9, an upper striking rod 10, a working wedge 11, a die insert 12, a positioning pin 13, a shaping punch insert 14, a driving wedge 15, an adjusting gasket 16 and a dead-heading cushion block 17.
Detailed Description
For clearly and completely describing the technical scheme and the specific working process thereof, the specific implementation mode of the invention is as follows by combining the attached drawings of the specification:
in the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Example 1
The embodiment provides a technological method for improving a top cover antenna hole position surface product, which comprises the steps of drawing forming and upward reshaping, wherein the drawing forming step is used for forming a drawn product without an antenna hole mounting surface, and the upward reshaping step is used for finishing the forming of the antenna hole mounting surface.
Example 2
As shown in fig. 1, a schematic flow chart of a process method for improving a top cover antenna hole position surface product according to this embodiment is shown, and the specific process is as follows:
s1: forming a drawing part without an antenna hole mounting surface by the flat plate under the action of the drawing upper female die and the drawing lower male die; the method specifically comprises the following steps:
when the die works, a flat material is placed on the material pressing ring 5, the drawing upper female die 4 is installed on the drawing upper die body 3 and moves downwards simultaneously with the drawing upper die body 3 under the action of a press sliding block, the drawing upper female die 4 is in contact with the material pressing ring 5 to form a drawing rib, the flow of the plate material is controlled, and when a bottom dead center is reached, a drawing workpiece which does not comprise a boss on the mounting surface of the antenna hole is formed by the drawing upper female die 4 and the drawing lower male die 1;
s2: the shaping convex die insert arranged on the working wedge is driven to be in place through the action of the driving wedge, and the shaping convex die insert and the concave die insert arranged on the upper pressure plate are used for finishing the shaping of the antenna hole mounting surface of the plate under the combined action; the method specifically comprises the following steps:
the upper-procedure workpiece is placed on a lower punch 9, fine positioning is provided for the workpiece through a positioning pin 13, an upper pressure plate 8 moves downwards along with an upper die body 6, a die insert 12 and an adjusting gasket 16 are installed on the upper pressure plate 8 through screws, the upper pressure plate 8 reaches a bottom dead center after contacting with a plate material, the upper die body 6 continues to move downwards, an upper air cushion of a press provides a pressing force for the upper pressure plate 8 through an upper striking rod 10, after the stroke of the upper pressure plate 8 is released, a dead-pier cushion block 17 installed on the upper pressure plate 8 contacts with the upper die body 6, the rigidity of the upper pressure plate 8 is guaranteed, the workpiece pressing process is completed, a driving wedge 15 starts to work, a shaping punch insert 14 is installed on the working wedge 11 and moves upwards along the wedge direction under the action of the driving wedge 15, when the die insert moves downwards along with the upper die body 6 to the bottom, the shaping punch insert 14 and the die insert 12 form an antenna hole in place, and the wedge shaping work is completed.
In the step S2, the antenna hole forming height may be adjusted by an adjusting shim disposed between the upper pressure plate and the die insert.
Example 3
As shown in fig. 2, a schematic structural diagram of a drawing die of the process method for improving a top cover antenna hole position surface product provided in this embodiment includes a drawing lower convex die 1, a drawing lower die body 2, a drawing upper die body 3, a drawing upper concave die 4, and a material pressing ring 5; the drawing upper female die 4 is arranged on the drawing upper die body 3, the drawing lower male die 1 is arranged on the drawing lower die body 2, and the pressure ring 5 is positioned in the lower die body 2 and used for placing a flat material; and the drawing upper female die 4 and the drawing lower male die 1 are matched to form a drawing part which does not comprise a boss on the mounting surface of the antenna hole.
Example 4
As shown in fig. 3, a schematic structural diagram of an upward shaping mold for the process method for improving the top cover antenna hole position quality provided by this embodiment includes an upper mold body 6, a lower mold body 7, an upper pressure plate 8, a lower convex mold 9, an upper striking rod 10, a working wedge 11, a concave mold insert 12, a shaping convex mold insert 14, a driving wedge 15, an adjusting gasket 16, and a dead-heading cushion block 17; the upper pressure plate 8 is arranged on the upper die body 6, the lower die 9 is arranged on the lower die body 7, the die insert 12, the adjusting gasket 16 and the blocking cushion block 17 are all arranged on the upper pressure plate 8 through screws, the upper striking rod 10 is arranged on the upper pressure plate 8, the shaping punch insert 14 is arranged on the working wedge 11, and the working wedge 11 moves in the lower die body 7 under the action of the guide element and the driving wedge 15; the driving wedge 15 is positioned below the working wedge 11, and the working wedge 11 is driven to move reversely along the punching direction under the action of the upper bottom plate.
The upward reshaping die further comprises a positioning pin 13 for providing fine positioning and fixing for the workpiece.
In conclusion, the forming of the antenna hole of the outer plate of the top cover is completed by two working procedures of drawing and upward shaping, so that the problem of surface quality at the position of the antenna hole of the top cover is solved; the process method can reduce the working content of the drawing die, reduce the on-site debugging and research amount, and improve the quality of the drawing die and the drawing workpiece; meanwhile, by adding subsequent upward shaping, the means of adjusting and modifying the size of the part at the position of the antenna hole and the surface quality are optimized, and the debugging cost is further reduced.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (8)
1. A technological method for improving a top cover antenna hole position surface product is characterized by comprising the working procedures of drawing forming and upward reshaping, wherein the drawing forming working procedure forms a drawn product without an antenna hole mounting surface, and the upward reshaping working procedure is used for finishing the forming of the antenna hole mounting surface.
2. The process for improving top cover antenna hole position surface quality as claimed in claim 1, wherein the process for improving top cover antenna hole position surface quality comprises the following specific steps:
s1: forming a drawing part without an antenna hole mounting surface by the flat plate under the action of the drawing upper female die and the drawing lower male die;
s2: and the shaping convex die insert arranged on the working wedge is driven to be in place through the action of the driving wedge, and the shaping convex die insert and the concave die insert arranged on the upper pressure plate are used for finishing the shaping of the antenna hole mounting surface of the plate under the combined action.
3. The process method for improving the top cover antenna hole position surface product according to claim 2, wherein the step S1 specifically comprises the following steps:
when the die works, a flat material is placed on the pressure ring, the drawing upper female die is installed on the drawing upper die body and moves downwards simultaneously with the drawing upper die body under the action of the press sliding block, the drawing upper female die is in contact with the pressure ring to form a drawing rib, the flow of the plate is controlled, and when a bottom dead center is reached, a drawing workpiece which does not comprise the boss of the antenna hole installation surface is formed by the drawing upper female die and the drawing lower female die.
4. The process method for improving a top cover antenna hole position surface product according to claim 2, wherein the step S2 specifically includes the following steps:
the upper-procedure workpiece is placed on a lower male die, fine positioning is provided for the workpiece through a positioning pin, an upper pressure plate moves downwards along with an upper die body, a die insert and an adjusting gasket are mounted on the upper pressure plate through screws, the upper pressure plate reaches a bottom dead center after contacting with a plate material, the upper die body continues to move downwards, an upper air cushion of a press provides pressure force for the upper pressure plate through an upper striking rod, after the stroke of the upper pressure plate is released, a dead block mounted on the upper pressure plate is contacted with the upper die body to ensure the rigidity of the upper pressure plate, the workpiece pressure-pressing process is completed, a driving wedge starts to work, a shaping male die is mounted on a working wedge and moves upwards along the wedge direction under the action of the driving wedge, the die insert moves downwards along with the upper die body to the bottom, the shaping male die insert and the die insert form an antenna hole mounting surface in place, and the wedge shaping work is completed.
5. The process for improving the top cover antenna hole position surface product according to claim 2, wherein in the step S2, the antenna hole forming height can be adjusted by an adjusting shim arranged between the upper pressing plate and the die insert.
6. The drawing die of the technological method for improving the top cover antenna hole position surface product according to claim 1, characterized by comprising a drawing lower convex die (1), a drawing lower die body (2), a drawing upper die body (3), a drawing upper concave die (4) and a material pressing ring (5); the drawing upper female die (4) is installed on the drawing upper die body (3), the drawing lower male die (1) is installed on the drawing lower die body (2), and the material pressing ring (5) moves in the lower die body (2) through the guide element and the limiting element and is used for placing flat materials; and the drawing upper female die (4) and the drawing lower male die (1) are matched to form a drawing part which does not comprise the boss on the mounting surface of the antenna hole.
7. The upward shaping die of the technological method for improving the top cover antenna hole position surface product according to claim 1, characterized by comprising an upper die body (6), a lower die body (7), an upper pressure plate (8), a lower punch (9), an upper striking rod (10), a working wedge (11), a female die insert (12), a shaping male die insert (14), a driving wedge (15), an adjusting gasket (16) and a blocking cushion block (17); the upper pressure plate (8) is mounted on the upper die body (6), the lower punch (9) is mounted on the lower die body (7), the female die insert (12), the adjusting gasket (16) and the upsetting cushion block (17) are mounted on the upper pressure plate (8) through screws, the upper striking rod (10) is mounted on the upper pressure plate (8), the shaping male die insert (14) is mounted on the working wedge (11), and the working wedge (11) moves in the lower die body (7) under the action of the guide element and the driving wedge (15); the driving inclined wedge (15) is positioned below the working inclined wedge (11), and the working inclined wedge (11) is driven to move reversely along the stamping direction under the action of the upper bottom plate.
8. The upward shaping die of claim 7, wherein the upward shaping die further comprises a positioning pin (13) for providing fine positioning and fixing for the part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210986198.XA CN115608854A (en) | 2022-08-17 | 2022-08-17 | Technological method and mould for improving top cover antenna hole position surface product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210986198.XA CN115608854A (en) | 2022-08-17 | 2022-08-17 | Technological method and mould for improving top cover antenna hole position surface product |
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| Publication Number | Publication Date |
|---|---|
| CN115608854A true CN115608854A (en) | 2023-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210986198.XA Pending CN115608854A (en) | 2022-08-17 | 2022-08-17 | Technological method and mould for improving top cover antenna hole position surface product |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209206266U (en) * | 2018-12-07 | 2019-08-06 | 浙江铁牛汽车车身有限公司 | Press Tools for Automobiles shaping reverse wedge mechanism vertically upward |
| CN111687600A (en) * | 2020-06-09 | 2020-09-22 | 安徽江淮汽车集团股份有限公司 | Automobile top cover forming process method and automobile top cover |
| CN113441630A (en) * | 2021-06-23 | 2021-09-28 | 安徽千缘模具有限公司 | Convex hull punching and shaping die |
| CN114192640A (en) * | 2021-11-04 | 2022-03-18 | 中国第一汽车股份有限公司 | Manufacturing method of roof skylight |
| CN216263020U (en) * | 2021-10-27 | 2022-04-12 | 四川成飞集成科技股份有限公司 | Automobile panel top cover drawing die antenna hole forming and ejecting mechanism |
| CN114749553A (en) * | 2022-03-17 | 2022-07-15 | 中国第一汽车股份有限公司 | Technological method and compensation method for controlling contour dimension of top cover |
-
2022
- 2022-08-17 CN CN202210986198.XA patent/CN115608854A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209206266U (en) * | 2018-12-07 | 2019-08-06 | 浙江铁牛汽车车身有限公司 | Press Tools for Automobiles shaping reverse wedge mechanism vertically upward |
| CN111687600A (en) * | 2020-06-09 | 2020-09-22 | 安徽江淮汽车集团股份有限公司 | Automobile top cover forming process method and automobile top cover |
| CN113441630A (en) * | 2021-06-23 | 2021-09-28 | 安徽千缘模具有限公司 | Convex hull punching and shaping die |
| CN216263020U (en) * | 2021-10-27 | 2022-04-12 | 四川成飞集成科技股份有限公司 | Automobile panel top cover drawing die antenna hole forming and ejecting mechanism |
| CN114192640A (en) * | 2021-11-04 | 2022-03-18 | 中国第一汽车股份有限公司 | Manufacturing method of roof skylight |
| CN114749553A (en) * | 2022-03-17 | 2022-07-15 | 中国第一汽车股份有限公司 | Technological method and compensation method for controlling contour dimension of top cover |
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