CN102974698A - Mould for forming side push bending beam for passenger train - Google Patents
Mould for forming side push bending beam for passenger train Download PDFInfo
- Publication number
- CN102974698A CN102974698A CN2012105051496A CN201210505149A CN102974698A CN 102974698 A CN102974698 A CN 102974698A CN 2012105051496 A CN2012105051496 A CN 2012105051496A CN 201210505149 A CN201210505149 A CN 201210505149A CN 102974698 A CN102974698 A CN 102974698A
- Authority
- CN
- China
- Prior art keywords
- face
- patrix
- side top
- position block
- holding pad
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention provides a mould for forming a side push bending beam for a passenger train. The mould comprises an upper mould and a lower mould arranged up and down. The upper mould can move relative to the lower mould. A lower limiting block is fixedly arranged on the lower mould, and a pressure plate is sleeved on the lower limiting block. A second concave arc-shaped face is formed on a top face of the lower limiting block, the bottom face of the upper mould is a first convex arc-shaped face, and a first concave arc-shaped face attached to the bottom face of the upper mould is formed on the top face of the pressure plate. A groove corresponding to the lower limiting block is formed on the bottom face of the upper mould. The groove is internally provided with an upper limiting block. The bottom face of the upper limiting block is a second convex arc-shaped face matched with the second convex concave arc-shaped face. The pressure plate under the effect of a limiting drive device is positioned on a first work position under the effect of a limiting drive device, and the upper mould moves downward to the pressure plate and is attached to the top face of the pressure plate so as to drive the pressure plate to move downward relative to the lower positioning block so that the lower limiting block enters into the groove. According to the mould, formed rebound deformation can be effectively reduced and the forming quality is improved through the arrangement of the moveable pressure plate.
Description
Technical field
The present invention relates to the rolling stock manufacturing technology, relate in particular to a kind of passenger train side top bow mold for forming.
Background technology
Passenger train side top bow is the important component of top of railway carriage, and the quality of its Forming Quality directly affects the follow-up assembling of roof.Fig. 1 is the front view of passenger train side top bow; Fig. 2 be among Fig. 1 A-A to view; As depicted in figs. 1 and 2, side top bow integral body is circular arc, cross section is " hat ", namely from the angle of a cross section, formation aerofoil 11 stretches out respectively in the opening both sides of " hat ", and, side top bow aerofoil 11 places one side arc surface is the larger extrados of bending radius 101, and the arc surface that the closed side of another " hat " forms then is the less intrados of bending radius 102; Because the thickness of slab of side top bow is less, generally adopts the forge moulding technology manufacturing.
Fig. 3 is the structural representation of passenger train side top bow mold for forming in the prior art; As shown in Figure 3, passenger train side top bow mold for forming of the prior art comprises patrix 31, counterdie 32, adding man-hour, a tabular blank need to put between patrix 31 and the counterdie 32, driving then that counterdie 32 moves up, disposable forging and pressing form side top bow " hat " structure.
Because this mould of the prior art adopts the technique of convex configuration, a forging forming, blank is in free state always in forming process, so that resilience is larger after the moulding, it is up to standard to cause the flatness of the wing plates on two sides of the side top bow after the moulding to be difficult to, thereby affects the quality of the follow-up welded and installed of side top bow.
Summary of the invention
For defects of the prior art, the invention provides a kind of passenger train bent beam shaping mould, in order to reduce the resilience in the forming process, improve the flatness of side top bow wing plates on two sides.
The invention provides a kind of passenger train side top bow mold for forming, comprising: be used for being fixedly installed on counterdie and the patrix that is arranged on described counterdie top on the workbench, described patrix can move up and down by relatively described counterdie; Be fixedly installed lower position block on the end face of described counterdie, be arranged with holding pad on the described lower position block; The end face of described lower position block is formed with the second indent arcwall face that is complementary with side top bow intrados, the bottom surface of described patrix is the first evagination arcwall face that is complementary with described side top bow extrados, the end face of described holding pad is formed with the first indent arcwall face that can fit with the bottom surface of described patrix, and the second indent arcwall face is parallel to described the first indent arcwall face; Corresponding described lower position block offers groove on the bottom surface of described patrix, is provided with upper limit position block moving up and down in the described groove, and described upper limit position block is fixedly connected with described patrix by the first elastic device; The bottom surface of described upper limit position block is the second evagination arcwall face that can fit with described the second indent arcwall face; Described holding pad is positioned at the first operating position under the effect of limit driving device, and described patrix is moved downward to described holding pad and fit with the end face of described holding pad after, can drive the relatively described lower locating piece of described holding pad and move down, make described lower position block enter into described groove.
Passenger train side top bow bending forming mould provided by the invention, by movably holding pad is set between upper die and lower die, whole forming process is decomposed into first step press-bending operation and second step section molding procedure, can effectively reduce the resilience after the moulding, guarantee the flatness of side top bow two flank faces that process, improved Forming Quality.
Description of drawings
Fig. 1 is the front view of passenger train side top bow;
Fig. 2 be among Fig. 1 A-A to view;
Fig. 3 is the structural representation of passenger train side top bow mold for forming in the prior art;
Fig. 4 A is the front view of passenger train side top bow mold for forming embodiment of the present invention;
Fig. 4 B be among Fig. 4 A B-B to cutaway view;
The top view of Fig. 4 C;
Fig. 5 A is the front view of upper limit position block among Fig. 4 B;
Fig. 5 B be among Fig. 5 A C-C to view;
Fig. 6 A is the front view of holding pad among Fig. 4 B;
Fig. 6 B is the top view of Fig. 6 A;
Fig. 7 A is the front view of Fig. 4 B lower limit position piece;
Fig. 7 B is the side view of Fig. 7 A.
The specific embodiment
Fig. 4 A is the front view of passenger train side top bow mold for forming embodiment of the present invention; Fig. 4 B be among Fig. 4 A B-B to cutaway view; The top view of Fig. 4 C; Please refer to Fig. 4 A-Fig. 4 C, present embodiment provides a kind of passenger train side top bow mold for forming, comprising: be used for being fixedly installed on counterdie 41 and the patrix 42 that is arranged on counterdie 41 tops on the workbench, patrix 42 relatively counterdie 41 moves up and down; Be fixedly installed lower position block 43 on the end face of counterdie 41, be arranged with holding pad 44 on the lower position block 43; The end face of lower position block 43 is formed with the second indent arcwall face 430(of being complementary with side top bow intrados shown in Fig. 7 A and Fig. 7 B), the first evagination arcwall face 420 of the bottom surface of patrix 42 for being complementary with side top bow extrados, the end face of holding pad 44 are formed with the first indent arcwall face 440 that can fit with the bottom surface of patrix 42; Corresponding lower position block 43 offers groove 45 on the bottom surface of patrix 42, is provided with upper limit position block 46 moving up and down in the groove 45, and upper limit position block 46 is fixedly connected with patrix 42 by the first elastic device; The bottom surface of upper limit position block 46 is the second evagination arcwall face 460 that can fit with the second indent arcwall face 430; Holding pad 44 is positioned at the first operating position under the effect of limit driving device, and patrix 42 is moved downward to holding pad 44 and fit with the end face of holding pad 44 after, can drive holding pad 44 and relatively descend locating piece 43 to move down, make lower position block 43 enter into groove 45.
The bottom surface of the end face of holding pad 44 and patrix 42 is oppositely arranged particularly, and both shapes that forms contact-making surface that fits together fully are identical with the extrados of side top bow, to stamp out the aerofoil of side top bow; The shape and size of lower position block 43 can determine that according to the shape of cross section of side top bow for example, lower position block 43 integral body can be microscler, and its development length and width can be determined according to length and the width of side top bow; The structure of upper limit position block 46 can be complementary with lower position block 43, so that upper limit position block 46 can be in the same place by the second evagination arcwall face 460 and the 430 complete amalgamations of the second indent arcwall face with lower position block 43; The development length of groove 45 can be identical or bigger with lower position block 43, and the width of groove 45 then can be determined according to the width of lower position block 43 and the wall thickness of side top bow; And the height that final lower position block 43 can enter into groove 45 can be determined according to the cup depth of side top bow " hat ".Limit driving device can adopt cylinder or hydraulic cylinder, can also make holding pad 44 rest on ad-hoc location by control hydraulic oil or gas flow easily when moving up and down to drive holding pad 44 by limit driving device; Wherein, the first operating position, end face that can finger pressure flitch 44 is concordant or be higher than the position of lower position block 43.
The passenger train side top bow bending forming that utilizes present embodiment to provide is as follows with the detailed process that mould carries out the moulding of side top bow: at first holding pad 44 is adjusted to above-mentioned the first operating position, then a flat blank to be formed is fixed on the holding pad 44, and be positioned at patrix 42 belows, utilizing the drive units such as hydraulic cylinder or cylinder to drive patrix 42 moves down, after patrix contacts above-mentioned blank to be formed, under the pressure-acting of patrix 42, blank to be formed forms the curved airfoils that corresponding side top bow extrados is complementary between the first inner concave arc surface of the first outer convex globoidal of patrix 42 and holding pad 44, so far, finish first step press-bending operation; Then, continuing to drive patrix 42 moves down, and drive the downward pressure of patrix 42 enough greatly to overcome limit driving device to the restraining force of holding pad 44 by control, thereby patrix 42 drive blanks to be formed and holding pad 44 are together moved down, and owing to pressure plare 44 relative low-limit position pieces 43 move down, so that lower position block 43 protrudes gradually, and enter into groove 45 on the patrix 42 that moves gradually, and then in the process that patrix 42 moves down, 43 of lower position blocks withstand upper limit position block 46, so that the sidewall of upper limit position block 46 relative grooves 45 moves up, himself length of the first elastic device pressurized reduces gradually, until supporting on the counterdie 41, can not move again holding pad 44, at this moment, the lower position block 43 that is entering into groove 45, the two opposite side walls of groove 45, and under the position-limiting action of upper limit position block 46, the cross section of blank to be formed is pressed into " hat " of side top bow, so far, finish second step section molding procedure, whole forming process finishes.Need to prove, can pass through the size of the first elastic device and the selection of material, and the setting of the degree of depth of groove 45, lower position block 43 and upper limit position block 46 height equidimensions, guarantee when holding pad 44 is pressed on the counterdie 41, the first elastic device also is compressed to extreme position, to reach good compressing effect.
The passenger train side top bow bending forming mould that present embodiment provides, by the movably setting of holding pad, whole forming process is decomposed into first step press-bending operation and second step section molding procedure, can effectively reduce the resilience after the moulding, guarantee the flatness of side top bow two flank faces that process, improved Forming Quality.
In the above-described embodiments, patrix 42 can comprise a cope match-plate pattern 421, and is fixedly installed on the upper module 422 on cope match-plate pattern 421 bottom surfaces; The bottom surface of upper module 422 is the first evagination arcwall face 420, and groove 45 is opened on the bottom surface of upper module 422.That is, patrix 42 can adopt Split type structure, and upper module 422 can be bolted on the flat cope match-plate pattern 421 and make patrix 42, with convenient processing and assembling.
Further, upper module 422 can also be combined by a module matrix 422a and two 422b that insert, wherein, module matrix 422a center can arrange step trough, two 422b that insert can be bolted to connection the bottom at this step trough, fix two insert the relative facade of 422b then can be concordant with the upper side of this step trough, to form groove 45.Adopt the upper module of Split assembled structure can further facilitate processing and assembling.
In the above-described embodiments, the first elastic device can comprise at least one unloading bolt 403 and at least one first spring 404; The end face of cope match-plate pattern 421 offers counterbore, and unloading bolt 403 passes and changes counterbore and be bolted in the upper limit position block 46, and can be matched in clearance between the head of unloading bolt 403 and this counterbore, can move up and down in counterbore to guarantee this unloading bolt 403; 404 on the first spring can be pressed between upper limit position block 46 and groove 45 bottoms; With when connecting upper limit position block 46 by unloading bolt 403, can also allow upper limit position block 46 relative grooves 45 to move up.Here, quantity to the first spring 404 and unloading bolt 403 is not done concrete restriction, preferably, can select three the first springs 404 and two unloading bolts 403, and all first springs 404 and unloading bolt 403 can be arranged in line along the length direction of groove 45, and unloading bolt 403 can lay respectively between adjacent two the first springs 404, to guarantee the purpose of steadily reliable connection and mobile upper limit position block.
In addition, forming process complete patrix 42 is moved separate with counterdie 41 after, " hat " part of the side top bow that processes also often is embedded in the groove 45, is difficult to take out; And in the present embodiment, because the elastic-restoring force effect of compressed the first spring 404 in forming process can with this side top bow by ejecting in the groove 45, further facilitate the discharging operation.
Further, can be fixedly installed at least three alignment pins 5 that are used for locating blank to be formed on the end face of holding pad 44, with after being placed into blank to be formed on the holding pad 44, it be positioned; And, also can be fixedly installed two on the end face of holding pad 44 for the limiting plate 51 of the deflection that limits blank to be formed, the thickness of limiting plate 51 equates with the thickness of blank to be formed, with restriction blank deflection in the longitudinal direction in pressing process, and prevent from blank is caused the excessive compression distortion.
In an embodiment of the present invention, the bottom surface of holding pad 44 is fixedly installed at least two and makes bar 6, is provided with at least two on the counterdie and beats the bar hole, makes bar 6 and passes this dozen bar hole and be connected with limit driving device.
Further, limit driving device can be a hydraulic press, and the horizontal support platform of hydraulic press just can be used as above-mentioned workbench for fixed placement counterdie 41, plays the hydraulic die cushion that bar 6 passes workbench and workbench below and is fixedly connected with.Thereby hydraulic press just can and be beaten bar 6 drive holding pads 44 by hydraulic die cushion and move up and down, and can in the first step is bent operation, be to beat the support force that bar 6 provides support holding pad 44 by hydraulic press.In the present embodiment, patrix 42 also can be fixedly connected with the slide block of hydraulic press, is used for driving patrix 42 and moves up and down; And, can guarantee in first step press-bending operation by each output pressure of adjusting hydraulic press, the downward pressure of 42 pairs of holding pads of patrix 44 is less than the support force of beating 6 pairs of pressure plares 44 of bar and making progress, motionless to guarantee that holding pad 44 is fixed on the first operating position, cooperate patrix 42 blank to be bent to the arc of side top bow by holding pad 44; And after first step press-bending operation is finished, the pressure of 42 pairs of holding pads 44 of patrix is increased to above the support force of beating 6 pairs of holding pads 44 of bar, under the pressure-acting of patrix 42, to promote pressure plare and blank one logical moving down, enter the second section molding procedure.
Further, be fixedly installed the lead 71 of at least two upper downward-extensions on the counterdie 41, patrix 42 corresponding leads 71 are provided with guide through hole 72, lead 71 is arranged in the corresponding guide through hole 72, to guarantee that patrix 42 moves up and down along lead 71, prevent that the relative counterdie of patrix 42 41 is moved at horizontal level, has further guaranteed direction of relative movement between patrix 42 and the counterdie 41, thereby has guaranteed the functional reliability of mould.
It should be noted that at last: above each embodiment is not intended to limit only in order to technical scheme of the present invention to be described; Although with reference to aforementioned each embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technical scheme.
Claims (9)
1. a passenger train side top bow mold for forming is characterized in that, comprising: be used for being fixedly installed on counterdie and the patrix that is arranged on described counterdie top on the workbench, described patrix can move up and down by relatively described counterdie; Be fixedly installed lower position block on the end face of described counterdie, be arranged with holding pad on the described lower position block; The end face of described lower position block is formed with the second indent arcwall face that is complementary with side top bow intrados, the bottom surface of described patrix is the first evagination arcwall face that is complementary with described side top bow extrados, the end face of described holding pad is formed with the first indent arcwall face that can fit with the bottom surface of described patrix, and the second indent arcwall face is parallel to described the first indent arcwall face; Corresponding described lower position block offers groove on the bottom surface of described patrix, is provided with upper limit position block moving up and down in the described groove, and described upper limit position block is fixedly connected with described patrix by the first elastic device; The bottom surface of described upper limit position block is the second evagination arcwall face that can fit with described the second indent arcwall face; Described holding pad is positioned at the first operating position under the effect of limit driving device, and described patrix is moved downward to described holding pad and fit with the end face of described holding pad after, can drive the relatively described lower locating piece of described holding pad and move down, make described lower position block enter into described groove.
2. passenger train side top bow mold for forming according to claim 1 is characterized in that described patrix comprises a cope match-plate pattern, and is fixedly installed on described cope match-plate pattern bottom surface upper module; The bottom surface of described upper module is described the first evagination arcwall face, and described groove is opened on the bottom surface of described upper module.
3. passenger train side top bow mold for forming according to claim 2 is characterized in that, described the first elastic device comprises at least one unloading bolt and at least one first spring; The end face of described cope match-plate pattern offers counterbore, and described unloading bolt passes described counterbore and is bolted in the described upper limit position block, and is matched in clearance between the head of described unloading bolt and the described counterbore; Described the first spring is pressed between described upper limit position block and the described bottom portion of groove.
4. passenger train side top bow mold for forming according to claim 2 is characterized in that, is fixedly installed at least three alignment pins that are used for locating blank to be formed on the end face of described holding pad.
5. passenger train side top bow mold for forming according to claim 4, it is characterized in that, also be fixedly installed two on the end face of described holding pad for the limiting plate of the deflection that limits described blank to be formed, the thickness of described limiting plate equates with the thickness of described blank to be formed.
6. according to claim 1 to 5 arbitrary described passenger train side top bow mold for forming, it is characterized in that, the bottom surface of described holding pad is fixedly installed at least two and makes bar, be provided with at least two on the described counterdie and beat the bar hole, the described bar of beating passes the described bar hole of beating and is connected with described limit driving device.
7. passenger train side top bow mold for forming according to claim 6, it is characterized in that, described limit driving device is a hydraulic press, the horizontal support platform of described hydraulic press is described workbench, and the described bar of beating passes described workbench and is fixedly connected with the hydraulic die cushion of described workbench below.
8. passenger train side top bow mold for forming according to claim 7 is characterized in that described patrix is fixedly connected with the slide block of described hydraulic press, is used for driving described patrix and moves up and down.
9. according to claim 1 to 5 arbitrary described passenger train side top bow mold for forming, it is characterized in that, be fixedly installed the lead of at least two upper downward-extensions on the described counterdie, the corresponding described lead of described patrix is provided with guide through hole, and described lead is arranged in the corresponding described guide through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105051496A CN102974698A (en) | 2012-11-30 | 2012-11-30 | Mould for forming side push bending beam for passenger train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105051496A CN102974698A (en) | 2012-11-30 | 2012-11-30 | Mould for forming side push bending beam for passenger train |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102974698A true CN102974698A (en) | 2013-03-20 |
Family
ID=47849208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105051496A Pending CN102974698A (en) | 2012-11-30 | 2012-11-30 | Mould for forming side push bending beam for passenger train |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102974698A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104043958A (en) * | 2014-06-27 | 2014-09-17 | 贵州毕节汇丰汽车零部件制造有限公司 | Front-insertion name brand press-fitting die |
| CN106216515A (en) * | 2016-08-04 | 2016-12-14 | 江苏文光模具技术有限公司 | A kind of diel molding bending mechanism |
| CN106670319A (en) * | 2016-12-20 | 2017-05-17 | 柳州通为机械有限公司 | Auto-body stamping mold |
| CN106694706A (en) * | 2015-08-04 | 2017-05-24 | 亿森（上海）模具有限公司 | Die for deep and narrow workpieces and forming method of die |
| CN114346037A (en) * | 2021-12-23 | 2022-04-15 | 江门市新会区浩潮五金制品有限公司 | Complete set of mould for arc-shaped handle and forming process thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4967473A (en) * | 1988-08-11 | 1990-11-06 | Wessel Kenneth C | Method of forming a bow beam for a truck trailer |
| CN2408986Y (en) * | 1999-12-08 | 2000-12-06 | 长春客车厂 | Cap shaped bent beam shaping die |
| SE520434C2 (en) * | 2000-12-06 | 2003-07-08 | Scania Cv Ab | Straight profiled beam production method, comprises rolling and heating sheet metal length edges and then carrying out profiled forming step |
| CN2865912Y (en) * | 2005-12-16 | 2007-02-07 | 中国重型汽车集团有限公司 | Frame cross member forming mold |
| CN201776357U (en) * | 2010-09-14 | 2011-03-30 | 南车南京浦镇车辆有限公司 | Lateral top camber beam compression tooling |
-
2012
- 2012-11-30 CN CN2012105051496A patent/CN102974698A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4967473A (en) * | 1988-08-11 | 1990-11-06 | Wessel Kenneth C | Method of forming a bow beam for a truck trailer |
| CN2408986Y (en) * | 1999-12-08 | 2000-12-06 | 长春客车厂 | Cap shaped bent beam shaping die |
| SE520434C2 (en) * | 2000-12-06 | 2003-07-08 | Scania Cv Ab | Straight profiled beam production method, comprises rolling and heating sheet metal length edges and then carrying out profiled forming step |
| CN2865912Y (en) * | 2005-12-16 | 2007-02-07 | 中国重型汽车集团有限公司 | Frame cross member forming mold |
| CN201776357U (en) * | 2010-09-14 | 2011-03-30 | 南车南京浦镇车辆有限公司 | Lateral top camber beam compression tooling |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104043958A (en) * | 2014-06-27 | 2014-09-17 | 贵州毕节汇丰汽车零部件制造有限公司 | Front-insertion name brand press-fitting die |
| CN106694706A (en) * | 2015-08-04 | 2017-05-24 | 亿森（上海）模具有限公司 | Die for deep and narrow workpieces and forming method of die |
| CN106216515A (en) * | 2016-08-04 | 2016-12-14 | 江苏文光模具技术有限公司 | A kind of diel molding bending mechanism |
| CN106670319A (en) * | 2016-12-20 | 2017-05-17 | 柳州通为机械有限公司 | Auto-body stamping mold |
| CN114346037A (en) * | 2021-12-23 | 2022-04-15 | 江门市新会区浩潮五金制品有限公司 | Complete set of mould for arc-shaped handle and forming process thereof |
| CN114346037B (en) * | 2021-12-23 | 2024-06-04 | 江门市新会区浩潮五金制品有限公司 | Complete die set of arc handle and forming process thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102513444B (en) | Composite flanging mechanism of stamping die | |
| CN2912859Y (en) | Flanging mold | |
| CN103658289B (en) | A kind of impact forming method and mould | |
| CN102974698A (en) | Mould for forming side push bending beam for passenger train | |
| CN100493758C (en) | Side pole forming technology and mould | |
| CN106029248B (en) | The manufacture method and press molding equipment of press-processing method and stamping products | |
| CN102319810B (en) | Punching mold time delay falling mechanism | |
| CN102909257A (en) | Lateral punching mold of groove-shaped workpiece | |
| CN205629136U (en) | Automobile longitudinal beam stamping forming mould | |
| CN205253891U (en) | Device is repaiied to side | |
| CN201799525U (en) | Die with tapered wedge | |
| CN103586332B (en) | The process for stamping and forming of car Rear secondary frame for vehicle main body | |
| CN202105919U (en) | Bending mould of rear cross beam of heavy truck | |
| CN104174771B (en) | A kind of double-deck wedge structure and process for stamping | |
| CN105817535A (en) | Stamping forming die for automobile girder | |
| CN113198941B (en) | Solebar forming die and forming process | |
| CN203400987U (en) | Stainless steel door corner sizing die | |
| CN102248044A (en) | Method for bending rear crossbeam of heavy truck and bending die | |
| CN214161123U (en) | Mould for drawing deep convex hull on arc convex hull | |
| CN210450783U (en) | Forging die for alloy cake piece | |
| CN208787334U (en) | A kind of vehicle right and left threshold rear portion connecting plate curring and sizing die | |
| CN207899944U (en) | A kind of positioning compression de- material integration mold | |
| CN112605272B (en) | Mould for deep convex hull on arc convex hull | |
| CN202239271U (en) | Forming die for front connection board of back wheel cover of car | |
| CN105363899A (en) | Reinforcing plate flanging die |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Sun Bangcheng Inventor after: Ma Dongli Inventor after: Gao Feng Inventor after: Li Lin Inventor after: Wang Jinjin Inventor before: Ma Dongli Inventor before: Gao Feng Inventor before: Li Lin Inventor before: Wang Jinjin |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: MA DONGLI GAO FENG LI LIN WANG JINJIN TO: SUN BANGCHENG MA DONGLI GAO FENGLI LIN WANG JINJIN |
|
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130320 |