CN114101490B - Press from both sides material turn-ups mechanism - Google Patents
Press from both sides material turn-ups mechanism Download PDFInfo
- Publication number
- CN114101490B CN114101490B CN202111343763.2A CN202111343763A CN114101490B CN 114101490 B CN114101490 B CN 114101490B CN 202111343763 A CN202111343763 A CN 202111343763A CN 114101490 B CN114101490 B CN 114101490B
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- Prior art keywords
- male die
- sliding block
- flanging
- die
- block
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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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
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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
- 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 material clamping and flanging mechanism which comprises an upper die base and a lower die base. The lower die base is provided with a part male die and a fixed male die, the fixed male die is positioned at the lower side of the pressing core and acts on a to-be-stamped part together with the pressing core, the part male die is arranged at the side edge of the fixed male die, the slide block drives the slotting tool to drive the wedge slide block and the movable male die to move towards the part male die, a flanging groove is concavely arranged at one side of the part male die facing the movable male die, a reversed sill supporting block is further arranged at the bottom of the flanging groove, a balance block is arranged on the upper surface of the reversed sill supporting block, and a v-21274; a shape structure for the movable male die to enter is formed among the part male die, the flanging groove and the reversed sill supporting block; the lower die holder is located the below of anti-threshold supporting shoe and still is equipped with nitrogen gas return spring, and nitrogen gas return spring is connected with the slide wedge slider. The invention can be optimized as much as possible under the condition of multiple flanged edges of products, can ensure that the plate always keeps a traction and stretching state in the side flanging process on a tool, and eliminates the wrinkling condition of the side flanging.
Description
Technical Field
The invention relates to the technical field of stamping dies, in particular to a material clamping and flanging mechanism.
Background
The flanging molding is a common molding process in the automobile industry, and because of different shapes and functions, the flanging surface has inevitable wrinkling defects, and various process methods are available for pursuing good quality.
1. The prior technical scheme can not quickly adjust the flanging resilience in the flanging and reshaping process, and the flanging cutter block needs to be subjected to repair welding and processing every time of reshaping.
2. The prior technical scheme can not quickly adjust the flanging gap in the flanging and shaping process, realizes the forced optimization of the surface quality of the flanging surface, and needs repair welding and machining of the flanging cutter block every time of adjustment and modification.
3. The existing flanging process cannot pull the plate at the tail part of the flanging surface, control the inflow speed of the plate and achieve the aim of optimizing the quality of the flanging surface.
4. If the cuff surface is long and in the arc-shaped material-rich area, the surface can be seriously wrinkled, and the current product structure cannot absorb much material from the product.
5. Some processes adopt a mode of pressing and flanging, but the tooling implementation cost is high, and a trimming process needs to be added after flanging, so that the implementation cost is increased.
Disclosure of Invention
The invention aims to provide a material clamping and flanging mechanism, which can be optimized as much as possible under the condition of flanging a plurality of materials, can ensure that a plate always keeps a traction and stretching state in the side flanging process on a tool, and eliminates the wrinkling condition of the side flanging.
According to one aspect of the invention, the invention provides a material clamping and flanging mechanism, which comprises an upper die holder and a lower die holder;
an upper die nitrogen cylinder and a slide block driving slotting tool are arranged on the upper die base, a material pressing core is connected to the extending end of the upper die nitrogen cylinder and used for pressing a to-be-stamped part, and the slide block driving slotting tool is arranged on the side edge of the material pressing core;
the lower die holder is provided with a wedge sliding block, the wedge sliding block is positioned on the lower side of the sliding block driving slotting tool, a movable male die is arranged on one side, close to the material pressing core, of the wedge sliding block, the wedge sliding block is matched with the sliding block driving slotting tool, and the movable male die reciprocates under the action of the sliding block driving slotting tool;
the lower die holder is further provided with a part male die and a fixed male die, the fixed male die is located on the lower side of the pressing core and acts on a part to be stamped together with the pressing core, the part male die is arranged on the side edge of the fixed male die, the pressing core and the part male die are used for fixing a flanging surface of the part to be stamped, the slider drives a slotting tool to drive the wedge slider and the movable male die to move towards the part male die, a flanging groove is concavely arranged on one side of the part male die facing the movable male die, the bottom of the flanging groove is further provided with a counter threshold supporting block, the upper surface of the counter threshold supporting block is provided with a balance block, and a V-shaped structure for the movable male die to enter is formed among the part male die, the flanging groove and the counter threshold supporting block; the lower die holder is located the below of anti threshold supporting shoe still is equipped with nitrogen gas return spring, nitrogen gas return spring with the slide wedge slider is connected, treats that the stamping workpiece turn-ups takes shape after, nitrogen gas return spring drive slide wedge slider and the movable punch mould moves towards the direction of keeping away from the part terrace die.
Optionally, according to the material clamping and flanging mechanism provided by the invention, the sliding block drives the slotting tool to be positioned obliquely above the wedge sliding block, the sliding contact surface of the sliding block and the slotting tool is an inclined surface, and when the sliding block drives the slotting tool to move downwards, the wedge sliding block moves towards the part male die under the action of the cooperation of the inclined surface.
Optionally, according to the material clamping and flanging mechanism provided by the invention, an L-shaped limiting groove is formed in the upper surface of the wedge slide block, the movable male die is arranged in the limiting groove, and the lower surface of the movable male die and the side surface close to the slide block driving slotting tool are in contact with the limiting groove.
Optionally, according to the material clamping and flanging mechanism provided by the invention, the balance block is provided with a texture for increasing friction force.
Optionally, according to the material clamping and flanging mechanism of the present invention, the balance block is further provided with at least two bolt fixing holes, the balance block is fixed on the sill support block by bolts, and the peripheries of the bolt fixing holes are provided with grooves, so that the surfaces of the bolts are located below the surfaces of the balance block.
Optionally, according to the material clamping and flanging mechanism provided by the invention, auxiliary driving blocks are further arranged at two ends of the sliding block driving slotting tool and used for limiting the movement direction of the wedge sliding block.
Optionally, according to the material clamping and flanging mechanism provided by the invention, a gasket is further arranged between the balance block and the sill support block, and the gasket is used for adjusting a gap in the v-shaped structure 21274.
Optionally, according to the material clamping and flanging mechanism provided by the invention, forced return hooks are further arranged on two sides of the sliding block driving slotting tool, and the forced return hooks connect the wedge sliding block with the sliding block driving slotting tool so as to force the wedge sliding block to return and reset.
The invention can optimize the workpiece to be stamped as much as possible under the condition of flanging and multiple materials, can ensure that the plate always keeps a traction and stretching state in the side flanging process on a tool, and eliminates the wrinkling condition of the side flanging; the structure is compact, the occupied space is saved, the die structure is simplified, the die space is saved, the cost is reduced, and the processing and debugging are convenient. The nitrogen cylinder above the material pressing core applies pressure to the material pressing core, the material pressing core presses the plate to prevent the plate from moving in the plate forming process and protect the quality of parts, the movable male die assembled on the wedge slide block moves downwards and is in a position of the inside of the Y-shaped structure and the balance block to form resistance between the inside of the Y-shaped structure and the balance block after contacting the plate, the gap inside the Y-shaped structure is adjusted, and then the material pulling force and the material moving speed of the plate are adjusted, so that the quality of the whole flanging surface is optimized as much as possible and the resilience amount of the parts is reduced. The part male die, the flanging groove and the reversed threshold supporting block form a v-21274for the movable male die to enter, and the shape structure can effectively solve the defects in the prior art.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a cross-sectional view of a material clamping and flanging mechanism disclosed by the invention;
FIG. 2 is a schematic structural view (I) of the upside-down upper die base disclosed in the present invention;
FIG. 3 is a schematic structural view of the upside down upper mold base disclosed in the present invention (II);
FIG. 4 is a schematic structural view of a movable male die and a male die of a part disclosed by the invention;
FIG. 5 is a schematic structural diagram of a weight according to the present disclosure;
FIG. 6 is a schematic structural view of a wedge slider and a movable male die disclosed in the present invention;
FIG. 7 is a schematic structural view of a positive return hook according to the present disclosure;
FIG. 8 is a schematic view of the flanging profile of the workpiece to be stamped in accordance with the present invention;
FIG. 9 is a partial enlarged view of the flanging profile of the workpiece to be stamped in accordance with the present invention.
Description of reference numerals: 10-an upper die holder; 11-upper mould nitrogen cylinder; 12-a core of the press; 13-the slide block drives the slotting tool; 14-an auxiliary drive block;
20-a lower die holder; 21-a tapered wedge slider; 22-a movable male die; 23-fixing the male die; 24-part punch; 25-sill support block; 26-a balance block; 261-bolt fixing holes; 262-a groove; 27-a gasket; 28-nitrogen return spring;
3-forced return hook; 4-stamping parts to be stamped; 41-convex hull; 42-material edge.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
According to the drawings of fig. 1 to 7, the invention provides a material clamping and flanging mechanism, which comprises an upper die base 10 and a lower die base 20.
An upper die nitrogen cylinder 11 and a sliding block driving slotting tool 13 are arranged on the upper die base 10, a material pressing core 12 is connected to the extending end of the upper die nitrogen cylinder 11, the material pressing core 12 is used for pressing the to-be-stamped part 4, and the sliding block driving slotting tool 13 is arranged on the side edge of the material pressing core 12.
And a wedge sliding block 21 is arranged on the lower die base 20, the wedge sliding block 21 is positioned on the lower side of the sliding block driving slotting tool 13, a movable male die 22 is arranged on one side, close to the material pressing core 12, of the wedge sliding block 21, the wedge sliding block 21 is matched with the sliding block driving slotting tool 13, and the movable male die 22 reciprocates under the action of the sliding block driving slotting tool 13.
The lower die holder 20 is further provided with a part punch 24 and a fixing punch 23, the fixing punch 23 is located on the lower side of the pressing core 12 and acts on the to-be-stamped part 4 together with the pressing core 12, the part punch 24 is arranged on the side edge of the fixing punch 23, the pressing core 12 and the part punch 24 are used for fixing a flanging surface of the to-be-stamped part 4, the slide block drives the slotting tool 13 to drive the wedge slide block 21 and the movable punch 22 to move towards the part punch 24, a flanging groove is concavely arranged on one side of the part punch 24 facing the movable punch 22, a counter threshold supporting block 25 is further arranged at the bottom of the flanging groove, a balance block 26 is arranged on the upper surface of the counter threshold supporting block 25, and a v-shaped structure for the movable punch 22 to enter is formed among the part punch 24, the flanging groove and the counter threshold supporting block 25, and the movable punch 22 can bend the flanging surface of the to-be-stamped part 4 into the v-shaped structure; the lower die holder 20 is also provided with a nitrogen return spring 28 below the threshold supporting block 25, the nitrogen return spring 28 is connected with the wedge slide block 21, and after the stamping part 4 to be stamped is flanged and formed, the nitrogen return spring 28 drives the wedge slide block 21 and the movable male die 22 to move towards the direction far away from the part male die 24.
As shown in fig. 8 and 9, for a structural schematic diagram of a flap profile of a to-be-stamped part 4, three convex hulls 41 are designed on a flanging surface, the convex hulls 41 are used for wrinkle absorption, the widths of the convex hulls 41 are as uniform as possible, the thickness of the convex hulls 41 is preferably designed to be 2mm, the change of the material edges 42 is gradually changed and over-designed, the diameter of the radius of the transitional material edges 42 is more than 30mm, and the influence on the quality of the outer surface is avoided.
In the production process, an upper die nitrogen cylinder 11 above a material pressing core 12 applies pressure to the material pressing core 12, the material pressing core 12 presses a plate material to avoid movement in the plate material forming process and protect the quality of parts, a movable convex die 22 assembled on a wedge slide block 21 moves downwards, the movable convex die 22 is in a position of 21274after contacting the plate material, resistance is formed between the inner side of a shape structure and a balance block 26 on the plate material, and the material pulling force and the material moving speed of the plate material are adjusted by adjusting the gap in the shape structure so that the quality of the whole flanging surface is optimized as much as possible and the resilience amount of the parts is reduced.
After the mold is finished, the nitrogen return spring 28 is stressed to withdraw the wedge slide block 21, and the work is finished.
By adopting the technical scheme, the plate can be ensured to be always in a traction and stretching state in the side flanging process, and the wrinkling condition of the side flanging is eliminated; the structure is compact, the occupied space is saved, the die structure is simplified, the die space is saved, the cost is reduced, and the processing and debugging are convenient.
Further, the slide block driving slotting tool 13 is located obliquely above the wedge slide block 21, and the sliding contact surface of the slide block driving slotting tool 13 and the wedge slide block 21 is an inclined surface, and when the slide block driving slotting tool 13 moves downwards, the wedge slide block 21 moves towards the part male die 24 under the action of cooperation of the inclined surfaces. Make slide wedge slider 21 slide through the inclined plane, avoided face-to-face contact to lead to the fact punching force too big, uncontrollable slide wedge slider 21's displacement volume to treat that stamping workpiece 4 causes the damage easily.
Furthermore, an L-shaped limiting groove is formed in the upper surface of the wedge sliding block 21, the movable male die 22 is arranged in the limiting groove, and the lower surface of the movable male die 22 and the side surface close to the sliding block driving slotting tool 13 are in contact with the limiting groove. The movable male die 22 is limited, and the movable male die 22 and the wedge slide block 21 can synchronously move towards the part male die 24.
Furthermore, the balance block 26 is provided with lines for increasing friction force, the depth of the lines is 0.2mm, the width of the lines is 0.5mm, friction between the balance block 26 and the movable male die 22 is effectively improved, and displacement of the movable male die 22 is conveniently controlled.
Still further, at least two bolt fixing holes 261 are provided in the weight 26, the weight 26 is fixed to the sill support block 25 by bolts, and a groove 262 is provided around the bolt fixing hole 261 so that the surface of the bolt is located below the surface of the weight 26. The sliding contact between the bolt and the lower surface of the movable punch 22 is avoided, so that the lower surface of the movable punch 22 is damaged.
Furthermore, two ends of the sliding block driving slotting tool 13 are also provided with auxiliary driving blocks 14, and the auxiliary driving blocks 14 are used for limiting the movement direction of the wedge sliding block 21.
Further, a gasket 27 is arranged between the balance weight 26 and the sill support block 25, and the gasket 27 is used for adjusting the gap in the structure of the reversed sill support block 21274. The thickness of the adjusting gasket 27 is adjusted to adjust the gap inside the v-shaped structure 21274, so that the material pulling force and the material conveying speed of the plate material are adjusted, the quality of the whole flanging surface is optimized as much as possible, and the resilience of the part is increased.
Furthermore, forced return hooks 3 are further arranged on two sides of the slider driving slotting tool 13, and the wedge slider 21 is connected with the slider driving slotting tool 13 through the forced return hooks 3, so that the wedge slider 21 is forced to return and reset. The slide wedge slide block 21 is provided with a movable convex die 22, the slide block driving block slotting tool moves downwards to push the slide wedge slide block 21 to drive the movable convex die 22 to flange the flanging surface of the part, and after the die is closed to the bottom, the slide wedge slide block 21 moves back under the action of a nitrogen return spring 28. Meanwhile, in order to prevent the nitrogen return spring 28 from being invalid and being incapable of pushing the wedge slide block 21 back, the wedge slide block 21 is provided with a forced return hook 3, and the forced return hook 3 connects the wedge slide block 21 with the slide block driving slotting tool 13, so that the wedge slide block 21 can be pulled back forcibly.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (8)
1. A material clamping and flanging mechanism is characterized by comprising an upper die holder and a lower die holder;
an upper die nitrogen cylinder and a slide block driving slotting tool are arranged on the upper die base, a material pressing core is connected to the extending end of the upper die nitrogen cylinder and used for pressing a to-be-stamped part, and the slide block driving slotting tool is arranged on the side edge of the material pressing core;
the lower die holder is provided with a wedge sliding block, the wedge sliding block is positioned on the lower side of the sliding block driving slotting tool, a movable male die is arranged on one side, close to the material pressing core, of the wedge sliding block, the wedge sliding block is matched with the sliding block driving slotting tool, and the movable male die reciprocates under the action of the sliding block driving slotting tool;
the lower die holder is further provided with a part male die and a fixed male die, the fixed male die is located on the lower side of the pressing core and acts on a part to be stamped together with the pressing core, the part male die is arranged on the side edge of the fixed male die, the pressing core and the part male die are used for fixing a flanging surface of the part to be stamped, the slider drives a slotting tool to drive the wedge slider and the movable male die to move towards the part male die, a flanging groove is concavely arranged on one side of the part male die facing the movable male die, the bottom of the flanging groove is further provided with a counter threshold supporting block, the upper surface of the counter threshold supporting block is provided with a balance block, and a V-shaped structure for the movable male die to enter is formed among the part male die, the flanging groove and the counter threshold supporting block; the lower die holder is located the below of anti threshold supporting shoe still is equipped with nitrogen gas return spring, nitrogen gas return spring with the slide wedge slider is connected, treats that the stamping workpiece turn-ups takes shape after, nitrogen gas return spring drive the slide wedge slider and the movable terrace die is towards keeping away from the direction removal of part terrace die.
2. The material clamping and flanging mechanism according to claim 1, wherein the sliding block drives the slotting tool to be positioned obliquely above the wedge sliding block, the sliding contact surface of the sliding block and the wedge sliding block is an inclined surface, and when the sliding block drives the slotting tool to move downwards, the wedge sliding block moves towards the part male die under the action of the cooperation of the inclined surface.
3. The material clamping and flanging mechanism according to claim 1, wherein an L-shaped limiting groove is formed in the upper surface of the wedge sliding block, the movable male die is arranged in the limiting groove, and the lower surface of the movable male die and the side surface close to the sliding block driving slotting tool are in contact with the limiting groove.
4. The material clamping and flanging mechanism according to claim 1, wherein lines for increasing friction force are arranged on the balance block.
5. The material clamping and flanging mechanism according to claim 4, wherein at least two bolt fixing holes are formed in the balance block, the balance block is fixed on the threshold supporting block through bolts, and grooves are formed in the periphery of the bolt fixing holes, so that the surface of each bolt is located below the surface of the balance block.
6. The material clamping and flanging mechanism according to claim 4, wherein auxiliary driving blocks are further arranged at two ends of the sliding block driving slotting tool and used for limiting the movement direction of the wedge sliding block.
7. The material clamping and flanging mechanism according to claim 1, wherein a gasket is further arranged between the balance block and the sill support block and used for adjusting a gap in a v-21274h-shaped structure.
8. The material clamping and flanging mechanism according to claim 1, wherein forced return hooks are further arranged on two sides of the sliding block driving slotting tool, and the wedge sliding block is connected with the sliding block driving slotting tool through the forced return hooks, so that the wedge sliding block is forced to return and reset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111343763.2A CN114101490B (en) | 2021-11-13 | 2021-11-13 | Press from both sides material turn-ups mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111343763.2A CN114101490B (en) | 2021-11-13 | 2021-11-13 | Press from both sides material turn-ups mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114101490A CN114101490A (en) | 2022-03-01 |
| CN114101490B true CN114101490B (en) | 2023-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111343763.2A Active CN114101490B (en) | 2021-11-13 | 2021-11-13 | Press from both sides material turn-ups mechanism |
Country Status (1)
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| CN (1) | CN114101490B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002172437A (en) * | 2000-12-06 | 2002-06-18 | Toyota Motor Corp | Cam forcibly returning apparatus |
| CN202192126U (en) * | 2011-08-22 | 2012-04-18 | 亿森（上海）模具有限公司 | Double movable side shaping mechanism for outer panel male die |
| CN102513444A (en) * | 2011-11-30 | 2012-06-27 | 长城汽车股份有限公司 | Composite flanging mechanism of stamping die |
| CN102601224A (en) * | 2012-03-01 | 2012-07-25 | 奇瑞汽车股份有限公司 | Side flanging die for outer board of rear cover of car |
| CN103639258A (en) * | 2013-11-27 | 2014-03-19 | 安徽江淮汽车股份有限公司 | Double-acting flanging and shaping mechanism |
| KR20180111191A (en) * | 2017-03-31 | 2018-10-11 | (주)세일금형 | Multistage bending device |
| CN108889852A (en) * | 2018-09-25 | 2018-11-27 | 合肥常青机械股份有限公司 | A kind of automobile panel tilts down movement wedge flanging mold |
| CN212760684U (en) * | 2020-06-17 | 2021-03-23 | 东风汽车集团有限公司 | Solve not in same direction as turn-ups sizing die of ridge line |
-
2021
- 2021-11-13 CN CN202111343763.2A patent/CN114101490B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002172437A (en) * | 2000-12-06 | 2002-06-18 | Toyota Motor Corp | Cam forcibly returning apparatus |
| CN202192126U (en) * | 2011-08-22 | 2012-04-18 | 亿森（上海）模具有限公司 | Double movable side shaping mechanism for outer panel male die |
| CN102513444A (en) * | 2011-11-30 | 2012-06-27 | 长城汽车股份有限公司 | Composite flanging mechanism of stamping die |
| CN102601224A (en) * | 2012-03-01 | 2012-07-25 | 奇瑞汽车股份有限公司 | Side flanging die for outer board of rear cover of car |
| CN103639258A (en) * | 2013-11-27 | 2014-03-19 | 安徽江淮汽车股份有限公司 | Double-acting flanging and shaping mechanism |
| KR20180111191A (en) * | 2017-03-31 | 2018-10-11 | (주)세일금형 | Multistage bending device |
| CN108889852A (en) * | 2018-09-25 | 2018-11-27 | 合肥常青机械股份有限公司 | A kind of automobile panel tilts down movement wedge flanging mold |
| CN212760684U (en) * | 2020-06-17 | 2021-03-23 | 东风汽车集团有限公司 | Solve not in same direction as turn-ups sizing die of ridge line |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114101490A (en) | 2022-03-01 |
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