CN112059013B - Backboard buckle machining method and mould and television hardware backboard - Google Patents
Backboard buckle machining method and mould and television hardware backboard Download PDFInfo
- Publication number
- CN112059013B CN112059013B CN202010744530.2A CN202010744530A CN112059013B CN 112059013 B CN112059013 B CN 112059013B CN 202010744530 A CN202010744530 A CN 202010744530A CN 112059013 B CN112059013 B CN 112059013B
- Authority
- CN
- China
- Prior art keywords
- shaping
- die
- insert
- convex
- mold
- 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.)
- Active
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
-
- 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
- B21D37/08—Dies with different parts for several steps in a process
-
- 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
- B21D53/36—Making other particular articles clips, clamps, or like fastening or attaching devices, e.g. for electric installation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Buckles (AREA)
Abstract
The invention relates to the technical field of back plate buckles, in particular to a back plate buckle processing method, a die and a television hardware back plate. The method is applied to a back plate buckle processing die and comprises the following steps: s10, correspondingly placing a product to be processed into a convex forming die; s20, carrying out embossing operation on the buckle forming part of the product to be machined through an embossing die to obtain a primary machined product; s30, correspondingly placing the primary processed product in a shaping mold; s40, carrying out buckle shaping operation on the convex part of the primary processed product through a shaping die, and finishing and obtaining the processed product. According to the invention, the buckle structure of the backboard is processed and generated in a secondary stamping manner, so that the manufacturing and processing of the buckle structure of the backboard can be completed under the condition that the backboard material is not torn, the quality of a product is ensured, the strength of the product is improved, and the problem that the backboard of the display is easy to tear and leak light in the buckle production process is solved.
Description
Technical Field
The invention relates to the technical field of back plate buckles, in particular to a back plate buckle processing method, a die and a television hardware back plate.
Background
With the development of the display industry and the improvement of the living standard of people, the requirements of people on the display are more strict, at present, the side edge of a back plate of the display, such as a television, is provided with a plurality of torn buckles, and the buckles are difficult to control in the processing process due to small structure and high size requirement. In the product production process, because the backplate side needs the spraying, during the spraying, the coating powder can fly into from tearing buckle, leads to the coating powder to fly into the backplate inboard, light leak when leading to the product assembly seriously influences the TV set quality.
At present, in order to avoid tearing the production method of the display backboard buckle in the industry, in the production process of the backboard, in order to prevent the flying powder from flying into the inner side of the backboard, the influence of tearing at the buckle part of the backboard on the product is usually reduced by sticking high-temperature-resistant adhesive paper, manually sucking/blowing the powder, spraying a clamp jig and the like on the backboard. But this greatly increases the production cost of the display backplane and increases the reject ratio of the product to a certain extent. Therefore, a technology capable of reducing the snap tearing condition of the display backboard in the production process is urgently needed.
Disclosure of Invention
The invention provides a backboard buckle processing method, a mould and a television hardware backboard, aiming at overcoming the technical problem that the traditional display backboard buckle structure is easy to tear.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a backboard buckle processing method is applied to a backboard buckle processing die and comprises the following steps:
s10, correspondingly placing a product to be processed into a convex forming die;
s20, carrying out embossing operation on a buckle forming part of the product to be machined through an embossing die to obtain a primary machined product;
s30, correspondingly placing the primary processed product in a shaping mold;
and S40, carrying out buckle shaping operation on the convex part of the primary processed product through a shaping die, and finishing and obtaining the processed product.
Further, the step S20 specifically includes:
s21, closing the mold by a convex mold, convex forming the buckle forming part of the product to be processed by a convex insert to form a buckle convex hull, and forming a gap which is consistent with the thickness of the product material on the side surface of the buckle;
and S22, opening the convex mold to obtain a primary processing product.
Further, the step S40 specifically includes:
s41, closing the shaping mold, and performing back pressure shaping on a buckle convex hull of the primary processed product through a shaping insert to enable the height of the product and the side gap of the buckle to reach a preset processing height and a preset gap;
and S42, opening the shaping mold to obtain a processed product.
The invention also provides a back plate buckle processing die which comprises a convex forming die and a shaping die; the convex forming die and the shaping die both comprise an upper die insert and a lower die insert; the lower mold insert is provided with a convex insert, and the shaping mold is provided with a shaping insert; the upper mold inserts of the convex forming mold and the shaping mold are respectively provided with through grooves matched with the convex forming inserts and the shaping inserts; the convex beating mould and the shaping mould are respectively used for carrying out convex beating and shaping operations on the back plate, and the convex beating gap between the convex beating insert and the upper mould insert on the convex beating mould is larger than the shaping gap between the upper shaping insert and the upper mould insert on the shaping mould.
Further, the height of the convex insert of the convex mold on the surface of the lower mold insert is higher than the height of the shaping insert of the shaping mold on the surface of the lower mold insert.
Further, the height difference between the convex insert and the shaping insert on the surface of the lower mold insert is 0.5mm.
Furthermore, the convex clearance between the convex insert and the upper mold insert is the thickness of the product material.
Further, the shaping gap between the shaping insert and the upper die insert is 15% of the thickness of the product material.
Furthermore, the embossing die and the shaping die respectively comprise an upper die holder and a lower die holder; the upper mold insert and the lower mold insert of the convex molding die and the shaping die are respectively arranged on the upper mold seat and the lower mold seat of the convex molding die and the shaping die; an upper base plate, an upper clamping plate and a stripper plate are sequentially arranged between the upper die seats and the upper die inserts of the convex forming die and the shaping die; and a lower base plate and a lower template are sequentially arranged between the lower die seat of the embossing die and the shaping die and the lower die insert.
In addition, the invention also provides a television hardware back plate, and the back plate buckle processing method is adopted.
According to the invention, the buckle structure of the back plate is processed and generated in a secondary stamping mode, so that the manufacturing and processing of the back plate buckle structure can be completed under the condition that the back plate material is not torn, the quality of a product is ensured, the strength of the product is improved, and the problem that the display back plate is easy to tear and leak light in the buckle production process is solved. Meanwhile, in the production process, the backboard processed by the method does not need to carry out protective film pasting/tearing operation on the buckle in the subsequent spraying, does not need to clamp a jig for spraying protection, can effectively reduce the procedures and reduce the production cost of the backboard.
Drawings
Fig. 1 is a structural flow chart of a back plate buckle processing method according to an embodiment of the present invention.
Fig. 2 is a flowchart of a specific structure of step S20 of the back plate buckle processing method according to the embodiment of the present invention.
Fig. 3 is a flowchart illustrating a specific structure of step S40 of the back plate buckle processing method according to the embodiment of the present invention.
Fig. 4 is a structure diagram of a mold insert and a mold closing of the embossing mold according to the embodiment of the invention.
Fig. 5 is a structural view of an insert-mold opening of the embossing mold according to the embodiment of the invention.
Fig. 6 is a structure diagram of a mold insert and a mold closing of the shaping mold according to the embodiment of the invention.
Fig. 7 is a drawing of the mold opening structure of the insert of the shaping mold according to the embodiment of the present invention.
Fig. 8 is an overall structural view of the embossing die according to the embodiment of the present invention.
Fig. 9 is an overall structural view of a shaping mold according to an embodiment of the present invention.
Wherein:
the embossing mold comprises a embossing mold 1, a shaping mold 2, an upper mold insert 3, a lower mold insert 4, an embossing insert 5, a shaping insert 6, an upper mold base 7, a lower mold base 8, an upper cushion plate 9, an upper clamping plate 10, a stripper plate 11, a lower cushion plate 12 and a lower mold plate 13.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
Example one
Fig. 1 shows a structural flow chart of a back plate buckle processing method in the embodiment of the invention.
As shown in fig. 1, the embodiment provides a back plate buckle processing method, which is applied to a back plate buckle processing mold, and processes and generates a buckle structure of a back plate through the back plate buckle processing mold. Specifically, the method comprises the following steps:
and S10, correspondingly placing the product to be processed into a convex forming die.
The substitute processing product is specifically a backboard with a buckle, and specifically, the backboard comprises a television backboard or other display backboard.
The corresponding placing means that a preset processing position in a product to be processed is placed in an insert corresponding to the embossing mold, so that the subsequent processing production of the buckle is guaranteed.
And S20, carrying out embossing operation on the buckle forming part of the product to be processed through the embossing die to obtain a primary processing product.
After the product to be processed is placed in, the processing start of the convex die can be completed in a manual judgment mode or an upper computer intelligent judgment mode.
The protruding operation is specifically that the product to be processed completes the convex hull generation of the buckle through the protruding upper mold insert and the protruding lower mold insert. When the buckle structure is generated, the parameters of the convex forming die are adjusted, so that the situation that the backboard is torn in the generation process of the convex hull is ensured, and the smooth generation of the buckle structure is completed.
S30, correspondingly placing the primary processed product in a shaping mold;
s40, carrying out buckle shaping operation on the convex part of the primary processed product through a shaping die, and finishing and obtaining the processed product.
The difference between the shaping mold and the convex mold is mainly in the structure of the insert, specifically, the convex insert in the convex mold is higher than the shaping insert of the shaping mold, and the specific height difference of the convex insert and the shaping insert on the surface of the lower mold insert is 0.5mm. Simultaneously, the mould clearance is different about both, and the clearance of beating protruding insert and last mould insert compares the plastic insert and goes up the mould and insert the clearance between big, sets up like this and to guarantee that the buckle is thicker higher when beating protruding, is difficult for tearing, carries out the secondary punching press to the product again when the plastic, the buckle structure that makes the product can be level and smooth generation, finally reaches the effect that the buckle structure is not torn.
As a preferable example of this embodiment, referring to fig. 2, step S20 specifically includes:
s21, closing the mold by a convex mold, convex forming the buckle forming part of the product to be processed by a convex insert to form a buckle convex hull, and forming a gap which is consistent with the thickness of the product material on the side surface of the buckle;
and S22, opening the convex mold to obtain a primary processing product.
Wherein, this step is used for treating the processing product specifically and beats protruding operation, and during beating protruding, in order to ensure that the processing product does not tear, preferentially, beat protruding mould's last lower mould clearance and can set up to a product material thickness, and the height of convex closure compares the high 0.5mm of final product preset height, ensures that the product can smooth generation convex closure.
More preferably, referring to fig. 3, step S40 includes:
s41, closing the shaping mold, and performing back pressure shaping on a buckle convex hull of the primary processed product through a shaping insert to enable the height of the product and the side gap of the buckle to reach a preset processing height and a preset gap;
and S42, opening the shaping mold to obtain a processed product.
Wherein, this step is specifically used for carrying out the plastic operation to the preliminary working product, and during the plastic, in order to ensure that the processing product does not tear, preferred, the upper and lower mould clearance of plastic mould can set up to 15% product material thickness to carry out the back pressure to the convex closure of preliminary working product, make it reach the product and predetermine the thickness standard, the thickness of buckle structure's the front and hem side can reach and predetermine the standard under the condition that does not tear promptly.
The advantage of this embodiment lies in, this method through the mode of secondary punching press, processes the buckle structure of backplate and generates, can not tear under the circumstances at the backplate material, accomplishes the preparation processing of backplate buckle structure, guarantees the quality of product, improves product strength, solves the problem of the light leak of tearing easily of display backplate in buckle production process. Meanwhile, in the production process, the backboard processed by the method does not need to carry out protective film pasting/tearing operation on the buckle in the subsequent spraying, does not need to clamp a jig for spraying protection, can effectively reduce the working procedures and reduce the production cost of the backboard.
Example two
This embodiment provides a backplate hasp mold processing, and this mold processing mainly used realizes the secondary punching press of backplate hasp structure to accomplish the processing that the backplate did not have the buckle structure of tearing. Specifically, referring to fig. 4-9, the processing mold includes a protruding mold 1 and a shaping mold 2, wherein the protruding mold 1 is used for protruding a product to be processed in primary processing to generate a convex hull of the back plate buckle. The shaping die 2 is used for shaping and back-pressing the primarily processed product to enable the product to reach a preset standard. The secondary punching of the back plate buckling structure is realized by matching the raising die 1 and the shaping die 2, so that the smooth processing of the buckling structure can be completed, and the effect that the back plate is not torn is finally achieved.
More specifically, in terms of structure, referring to fig. 4-7, the embossing mold 1 and the shaping mold 2 both include an upper mold insert 3 and a lower mold insert 4, and the upper mold insert 3 and the lower mold insert 4 are in butt joint in a matching manner to perform a punching operation on a product. On the lower mould insert 4, a lower mould insert 4 of the convex mould 1 is provided with a convex insert 5, the lower mould insert 4 of the shaping mould 2 is provided with a shaping insert 6, and the upper mould inserts 3 of the convex mould 1 and the shaping mould 2 are respectively provided with a through groove matched with the convex insert 5 and the shaping insert 6. The convex mould 1 and the shaping mould 2 respectively realize the generation and shaping back pressure of the convex hull through the matching between the convex insert 5, the shaping insert 6 and the through hole.
It is worth to be noted that the convex clearance between the convex insert 5 on the convex mold 1 and the upper mold insert 3 is larger than the shaping clearance between the shaping insert 6 on the shaping mold 2 and the upper mold insert 3. Because the backplate appears tearing easily at the buckle in-process of beating protrudingly, consequently, we are beating the protruding in-process, reserve great buckle side clearance earlier to guarantee that it can not appear tearing the condition. The gap is corrected in the subsequent shaping process, and finally the buckling structure of the back plate smoothly reaches the preset thickness.
For better operation experience, the concrete clearance setting of mould in this embodiment is disclosed, wherein, beat the protruding clearance setting of going into between son 5 and last mould income son 3 and set up to product material thickness, the plastic clearance of going into between son 6 and last mould income son 3 sets up to 15% for product material thickness, through the setting in mould clearance, can guarantee that the product assembly is smooth and easy simultaneously, ensure that the backplate does not tear the condition and takes place.
As a preferred embodiment of the present invention, the height of the convex insert 5 of the convex mold 1 on the surface of the lower mold insert 4 is higher than the height of the shaping insert 6 of the shaping mold 2 on the surface of the lower mold insert 4, so that a higher convex hull can be formed in the convex forming process of the product, and the tearing phenomenon cannot occur in the convex forming process. The convex hull can be subjected to smooth back pressure in subsequent shaping operation, and finally the preset height of the product buckle structure is achieved. More preferably, in the present embodiment, the difference in height between the punch 5 and the reshaper 6 on the surface of the lower mold 4 is 0.5mm.
As a preferred aspect of the present embodiment, in terms of the specific structural connection between the raising die 1 and the shaping die 2, as shown in fig. 8 and 9, the raising die 1 and the shaping die 2 respectively include an upper die holder 7 and a lower die holder 8, and the upper die insert 3 and the lower die insert 4 of the raising die 1 and the shaping die 2 are respectively mounted on the upper die holder 7 and the lower die holder 8 of the raising die 1 and the shaping die 2. An upper backing plate 9, an upper clamping plate 10 and a stripper plate 11 are sequentially arranged between the upper die base 7 of the raising die 1 and the shaping die 2 and the upper die insert 3; a lower cushion plate 12 and a lower template 13 are sequentially arranged between the lower die base 8 and the lower die insert 4 of the raising die 1 and the shaping die 2. Wherein, the replacement of the convex mould 1 and the shaping mould 2 can be realized through the replacement of the insert.
The benefit of this embodiment lies in, this structure realizes the secondary punching press that the structure was buckled to display backplate card through setting up embossing mold 1 and plastic mold 2 to the tearing condition can not appear in the course of working that makes the backplate card detain the structure. This mould can one step target in place to backplate buckle structure, makes it can not appear tearing the condition to the protection process of buckle when reducing follow-up spraying, consumptive material when saving backplate production has improved the production efficiency of display backplate, has effectively guaranteed the quality of product, increases its market competition.
EXAMPLE III
The embodiment provides a television hardware backboard, and the backboard adopts the backboard buckle processing method provided in the first embodiment to process and generate the buckle part on the backboard, so that the situation that the television hardware backboard is torn cannot occur, the quality of a product is improved, the situation that light leaks cannot occur during assembly is ensured, and the requirements of customers are met.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (3)
1. The backboard buckle processing method is characterized by being applied to a backboard buckle processing die, wherein the backboard buckle processing die comprises a convex forming die and a shaping die; the convex forming die and the shaping die both comprise an upper die insert and a lower die insert; the lower mold insert is provided with a convex insert, and the shaping mold is provided with a shaping insert; the upper mold inserts of the convex forming mold and the shaping mold are respectively provided with through grooves matched with the convex forming inserts and the shaping inserts; the convex beating mold and the shaping mold are respectively used for carrying out convex beating and shaping operations on a back plate, a convex beating gap between a convex beating insert on the convex beating mold and an upper mold insert is larger than a shaping gap between an upper shaping insert and the upper mold insert of the shaping mold, the height of the convex beating insert of the convex beating mold on the surface of the lower mold insert is higher than the height of the shaping insert of the shaping mold on the surface of the lower mold insert, the height difference of the convex beating insert and the shaping insert on the surface of the lower mold insert is 0.5mm, the convex beating gap between the convex beating insert and the upper mold insert is the thickness of a product material, and the shaping gap between the shaping insert and the upper mold insert is 15% of the thickness of the product material; the method comprises the following steps:
s10, correspondingly placing a product to be processed into a convex forming die;
s21, closing the convex mold, convex forming the buckle forming part of the product to be processed through a convex punch to form a buckle convex hull, and forming a gap corresponding to the thickness of the product material on the side surface of the buckle;
s22, opening the convex mold to obtain a primary processing product;
s30, correspondingly placing the primary processed product in a shaping mold;
s41, closing the shaping mold, and performing back pressure shaping on the buckle convex hull of the primarily processed product through the shaping insert to enable the height of the product and the gap between the side surfaces of the buckle to reach a preset processing height and a preset gap;
and S42, opening the shaping mold to obtain a processed product.
2. A back plate buckle processing die is characterized in that the back plate buckle processing method of claim 1 is adopted;
the embossing die and the shaping die respectively comprise an upper die base and a lower die base; the upper mold insert and the lower mold insert of the convex molding die and the shaping die are respectively arranged on the upper mold seat and the lower mold seat of the convex molding die and the shaping die; an upper base plate, an upper clamping plate and a stripper plate are sequentially arranged between the upper die seats and the upper die inserts of the convex forming die and the shaping die; and a lower base plate and a lower template are sequentially arranged between the lower die seat of the embossing die and the shaping die and the lower die insert.
3. A television hardware backboard is characterized in that the backboard buckling processing method in claim 1 is adopted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010744530.2A CN112059013B (en) | 2020-07-29 | 2020-07-29 | Backboard buckle machining method and mould and television hardware backboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010744530.2A CN112059013B (en) | 2020-07-29 | 2020-07-29 | Backboard buckle machining method and mould and television hardware backboard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112059013A CN112059013A (en) | 2020-12-11 |
| CN112059013B true CN112059013B (en) | 2023-04-11 |
Family
ID=73656301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010744530.2A Active CN112059013B (en) | 2020-07-29 | 2020-07-29 | Backboard buckle machining method and mould and television hardware backboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112059013B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112894265A (en) * | 2020-12-18 | 2021-06-04 | 东莞市新美洋技术有限公司 | Process for manufacturing elongated products and elongated products |
| CN112845778A (en) * | 2020-12-29 | 2021-05-28 | 东莞市豪顺精密科技有限公司 | Convex hull shaping device and machining method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581127B (en) * | 2012-02-28 | 2015-02-11 | 昆山三景科技股份有限公司 | Stamping die and method for backboard convex hull structure suitable for light emitting diode (LED) display |
| CN102581126B (en) * | 2012-02-28 | 2014-10-01 | 昆山三景科技股份有限公司 | Stamping die and method for circular convex hull on backboard of flat display |
| CN202894005U (en) * | 2012-10-24 | 2013-04-24 | 苏州百达精密机械有限公司 | Anti-deformation raising mold |
| CN105921615B (en) * | 2016-04-20 | 2018-07-13 | 江苏集鑫成精密工业有限公司 | A kind of large-scale tv machine backboard molding die |
| CN110802166B (en) * | 2019-11-01 | 2021-03-30 | 深圳创维－Rgb电子有限公司 | Machining process of back plate |
-
2020
- 2020-07-29 CN CN202010744530.2A patent/CN112059013B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112059013A (en) | 2020-12-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107199287B (en) | Manufacturing method of mobile phone shell and special die | |
| CN112059013B (en) | Backboard buckle machining method and mould and television hardware backboard | |
| CN110814162B (en) | Sheet metal forming method for aircraft skin part with sinking function | |
| CN106493221A (en) | The diel of bumper mount and Sheet Metal Forming Technology | |
| CN1121285C (en) | Drawing die for forming metallic sheet by punching | |
| CN111112454A (en) | Method for controlling rebound size of fender part | |
| JP2003117619A (en) | Press forming method and device used therefor | |
| CN210188238U (en) | Die capable of eliminating unevenness of drawing surface | |
| KR20180087726A (en) | Blanking Shear a molding machine for car body | |
| CN112007970A (en) | Process method for controlling shaping quality of B column side of back door outer plate | |
| EP2254744A1 (en) | Device and method for laminating a carrier layer with a decorative layer | |
| CN101875076B (en) | Pre-bending processing die of coiled round edge of television rear shell and pre-bending processing method by using same | |
| CN109500232A (en) | A kind of sheet metal component drawing die and sheet metal component drawing process | |
| JP2000015352A (en) | Press-embossed working method of metallic sheet | |
| CN113617916A (en) | Method for designing molded surface of outer plate mold of automobile tail door | |
| CN201543707U (en) | Pre-bending processing mould for the curved edge of television set backshell | |
| RU2282516C2 (en) | Method and die set for forming body parts | |
| CN111531030A (en) | Method for forming corner area spherical angle at tail end of automobile top cover | |
| CN210115375U (en) | Be applied to fashioned structure of attenuation turn-ups | |
| JPH0739963A (en) | Manufacture of patterned metal sheet by using flexible elastic body | |
| CN204867068U (en) | Synchronous plastic stamping die | |
| CN216262916U (en) | Hyperboloid skin auxiliary forming device | |
| CN113561511B (en) | Steel-plastic back plate and manufacturing method thereof | |
| CN221110628U (en) | Rivet head of pressure riveting equipment | |
| CN108856507A (en) | A kind of sheet metal component drawing die and sheet metal component drawing process |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |