CN112355147B - Turnover shaping method of automobile framework part - Google Patents
Turnover shaping method of automobile framework part Download PDFInfo
- Publication number
- CN112355147B CN112355147B CN202011104765.1A CN202011104765A CN112355147B CN 112355147 B CN112355147 B CN 112355147B CN 202011104765 A CN202011104765 A CN 202011104765A CN 112355147 B CN112355147 B CN 112355147B
- Authority
- CN
- China
- Prior art keywords
- block
- profiling
- shaping
- die
- positioning block
- 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
- 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
- B21D53/00—Making other particular articles
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention relates to a turnover shaping die for automobile framework parts, which comprises an upper die and a lower die, wherein a profiling positioning block, a rotating shaft and two bearing seats are arranged on the lower die; a profiling side pressing block and a reset component are arranged on one side of the lower die, which is positioned on the profiling positioning block, in a sliding manner, a driving gear is coaxially fixed on the rotating shaft, and a driving rack is arranged on the profiling side pressing block; the upper die is elastically connected with a flexible pressing head; the upper die is also provided with a side cutter; a side shaping block is movably arranged in the profiling side pressing block in a penetrating way; a resetting piece is arranged on the profiling side pressing block; a shaping female die is arranged on the profiling positioning block; the reasonable and compact of overall structure, go up unloading all forward go on, enough ensure the accuracy control of plastic, in addition, provide the power of upset and plastic through the unilateral sword and can make the simplification that the mould structure becomes, and the design of flexible pressure holding head and magnet can ensure the stability of product deflection process.
Description
Technical Field
The invention relates to the technical field of automobile framework part processing dies, in particular to a turnover shaping method of an automobile framework part.
Background
The automobile framework part mould that adopts at present, when having the position of certain slant angle to the work piece side to carry out the plastic, the slant mould that can adopt specific preparation usually corrects the processing position, and the unloading of work piece all need have certain slant angle this moment for go up the very inconvenience that unloading can become, mould preparation degree of difficulty itself is also great.
Disclosure of Invention
The invention aims to solve the technical problem of providing a turnover shaping die and a turnover shaping method for an automobile framework part, aiming at the defects in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the turnover shaping die for the automobile framework part comprises an upper die and a lower die, wherein a profiling positioning block for placing and positioning a workpiece, a rotating shaft fixedly arranged on the profiling positioning block in a penetrating way and two bearing seats respectively rotatably connected with two ends of the rotating shaft are arranged on the lower die, and a magnet for adsorbing the workpiece is arranged on the profiling positioning block; a profiling side pressing block and a reset component for resetting the profiling positioning block after moving are arranged on one side of the lower die in a sliding manner, a longitudinal driving gear is coaxially fixed on the rotating shaft, and a transverse driving rack meshed with the driving gear is arranged on the profiling side pressing block; the upper die is elastically connected with a flexible pressing head for pressing and holding a workpiece, the flexible pressing head comprises a plurality of side-by-side material pressing rollers which can rotate and bend, and the length direction of the material pressing rollers is consistent with that of the rotating shaft; the upper die is further provided with a side cutter, a first inclined surface is arranged on one side of the lower end of the side cutter, a second inclined surface matched with the first inclined surface is arranged at the tail end of the upper surface of the profiling side pressing block, a side shaping block is movably arranged in the profiling side pressing block in a penetrating mode, and a third inclined surface matched with the first inclined surface is arranged at the tail end of the upper surface of the side shaping block; a resetting piece for resetting the side shaping block is arranged on the profiling side pressing block; and the profiling positioning block is provided with a shaping female die corresponding to the side shaping block.
The invention relates to a turnover shaping die for automobile framework parts, wherein two driving gears are arranged and are respectively positioned at two ends of a profiling positioning block; the height of the outer surface of the driving gear is lower than that of a workpiece placed on the profiling positioning block.
The turnover shaping die for the automobile framework part comprises a flexible pressing head, a flexible pressing head and a reverse concave type support, wherein the inner wall of the reverse concave type support is provided with a plurality of elastic rods which are arranged side by side and penetrate through the pressing roll.
The invention relates to a turnover shaping die for automobile framework parts, wherein the upper end of a reverse concave bracket is connected with an upper die through a plurality of nitrogen springs.
The invention relates to an overturning and shaping die for automobile framework parts, wherein the middle section of a side shaping block is arranged in a cylindrical shape, and a reset piece is a reset spring and is sleeved on the middle cylindrical section of the side shaping block; one end of the reset spring is connected with the side shaping block, and the other end of the reset spring is connected with the profiling side pressing block.
The invention relates to a turnover shaping die for automobile framework parts, wherein a limiting groove for limiting a driving rack is formed in the upper surface of a lower die.
The turnover shaping die for the automobile framework part is characterized in that the side shaping blocks, the shaping female die and the reset piece form a group of units, a plurality of groups of the units are arranged on the lower die, and the side shaping blocks are driven by the side cutters.
A turnover shaping method of an automobile framework part is provided, according to the turnover shaping die of the automobile framework part, the turnover shaping method comprises the following steps:
the first step is as follows: placing a workpiece on a profiling positioning block of the lower die for positioning, adsorbing the workpiece by a magnet on the profiling positioning block, and then enabling the upper die to move downwards;
the second step is that: a plurality of parallel material pressing rollers on the flexible pressing head are contacted and bent to deform to press the workpiece;
the third step: the upper die continues to move downwards, the side cutter contacts the profiling side pressing block and drives the profiling side pressing block to slide transversely, the driving rack moves along with the movement of the profiling side pressing block to drive the driving gear to rotate, the profiling positioning block deflects, and the first inclined surface is separated from the second inclined surface when the profiling side pressing block is contacted with the profiling positioning block;
the fourth step: the upper die continues to descend, the side cutter contacts the side shaping block and drives the side shaping block to move towards the profiling positioning block, and the side shaping block is matched with the shaping female die to shape the workpiece;
the fifth step: after the shaping is finished, the upper die moves upwards, and the side shaping block, the profiling side pressing block and the profiling positioning block reset.
The invention has the beneficial effects that: placing a workpiece on a profiling positioning block of the lower die for positioning, adsorbing the workpiece by a magnet on the profiling positioning block, and then enabling the upper die to move downwards; a plurality of parallel material pressing rollers on the flexible pressing head are contacted and bent to deform to press the workpiece; the upper die continues to move downwards, the side cutter contacts the profiling side pressing block and drives the profiling side pressing block to slide transversely, the driving rack moves along with the movement of the profiling side pressing block to drive the driving gear to rotate, the profiling positioning block deflects, and the first inclined surface is separated from the second inclined surface when the profiling side pressing block is contacted with the profiling positioning block; the upper die continues to descend, the side cutter contacts the side shaping block and drives the side shaping block to move towards the profiling positioning block, and the side shaping block is matched with the shaping female die to shape the workpiece; after shaping is finished, the upper die ascends, and the side shaping block, the profiling side pressing block and the profiling positioning block reset; overall structure is reasonable and compact, does not increase the volume, go up and down all forward going on, and can make synchronous motion between profile side briquetting and the profile locating piece have better precision through gear and rack cooperation, the precision control of plastic just can be ensured to the side shaping piece of rethread independent design, in addition, the power that provides upset and plastic through the unilateral sword can make the simplification that the mould structure becomes, and the design of flexible pressure holding head and magnet can ensure the stability of product deflection process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described with reference to the accompanying drawings and embodiments, wherein the drawings in the following description are only part of the embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive efforts according to the accompanying drawings:
FIG. 1 is a schematic structural view of a mold for turning and shaping automobile frame parts according to a preferred embodiment of the present invention (a driving gear is not shown);
FIG. 2 is a top view of a lower mold of the turnover shaping mold for the automobile frame part according to the preferred embodiment of the present invention;
FIG. 3 is a side view of the flexible clamping head of the reverse reforming mold for the vehicle frame part in accordance with the preferred embodiment of the present invention;
fig. 4 is a flow chart of a method for turning and shaping a vehicle frame component according to a preferred embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without inventive step, are within the scope of the present invention.
As shown in fig. 1, referring to fig. 2 and 3, the turnover shaping mold for automobile frame parts according to the preferred embodiment of the present invention includes an upper mold 1 and a lower mold 2, wherein the lower mold 2 is provided with a profiling positioning block 20 for positioning a workpiece, a rotating shaft 21 penetrating and fixed on the profiling positioning block, and two bearing seats 22 rotatably connected to two ends of the rotating shaft 21, and the profiling positioning block 20 is provided with a magnet 200 for adsorbing the workpiece; a profiling side pressing block 23 and a resetting component (not shown in the figure) for resetting after moving are arranged on one side of the profiling positioning block 20 on the lower die 2 in a sliding manner, a longitudinal driving gear 210 is coaxially fixed on the rotating shaft 21, and a transverse driving rack 230 meshed with the driving gear 210 is arranged on the profiling side pressing block 23; the upper die 1 is elastically connected with a flexible pressing head 10 for pressing and holding a workpiece, the flexible pressing head 10 comprises a plurality of side-by-side material pressing rollers 100 which can rotate and bend, and the length direction of the material pressing rollers is consistent with that of the rotating shaft; the upper die 1 is also provided with a side cutter 11, one side of the lower end of the side cutter 11 is provided with a first inclined surface 110, the tail end of the upper surface of the profiling side pressing block 23 is provided with a second inclined surface 231 matched with the first inclined surface, a side shaping block 24 is movably arranged in the profiling side pressing block 23 in a penetrating manner, and the tail end of the upper surface of the side shaping block 24 is provided with a third inclined surface 240 matched with the first inclined surface; the profiling side pressing block 23 is provided with a resetting piece 232 for resetting the side shaping block; a shaping concave die 201 corresponding to the side shaping block 24 is arranged on the profiling positioning block 20;
placing a workpiece on a profiling positioning block 20 of a lower die for positioning, adsorbing the workpiece by a magnet 200 on the profiling positioning block 20, and then enabling an upper die 1 to descend; a plurality of side-by-side material pressing rollers 100 on the flexible pressing head 10 contact and bend to deform to press the workpiece; the upper die 1 continues to move downwards, the side cutter 11 contacts the profiling side pressing block 23 and drives the profiling side pressing block to slide transversely, the driving rack 230 moves along with the movement of the profiling side pressing block 23 to drive the driving gear 210 to rotate, the profiling positioning block 20 deflects, and the first inclined surface 110 is separated from the second inclined surface 231 when the profiling side pressing block 23 is contacted with the profiling positioning block 20; the upper die 1 continues to descend, the side cutter 11 contacts the side shaping block 24 and drives the side shaping block to move towards the profiling positioning block 20, and the side shaping block 24 is matched with the shaping female die 201 to shape the workpiece; after the shaping is finished, the upper die 1 moves upwards, and the side shaping block 24, the profiling side pressing block 23 and the profiling positioning block 20 reset;
overall structure is reasonable and compact, does not increase the volume, go up and down all forward going on, and can make synchronous motion between profile side briquetting and the profile locating piece have better precision through gear and rack cooperation, the precision control of plastic just can be ensured to the side shaping piece of rethread independent design, in addition, the power that provides upset and plastic through the unilateral sword can make the simplification that the mould structure becomes, and the design of flexible pressure holding head and magnet can ensure the stability of product deflection process.
Preferably, two driving gears 210 are provided and are respectively located at two ends of the profiling positioning block 20; the height of the outer surface of the driving gear 210 is lower than that of the workpiece placed on the contour positioning block 20; the profiling positioning block 20 has good deflection stability, and is convenient for the flexible pressing head 10 to contact and press the workpiece.
Preferably, the flexible pressure-holding head 10 further comprises an inverted concave-shaped support 101, and the inner wall of the inverted concave-shaped support 101 is provided with a plurality of elastic rods 102 which are arranged side by side and penetrate through the pressure roller 100; in the deflection process of the profiling positioning block, the material pressing roller can also keep good pressing effect; preferably, the nip roll can adopt a rubber sleeve.
Preferably, the upper end of the inverted concave bracket 101 is connected with the upper die 1 through a plurality of nitrogen springs; when the die is closed, the flexible pressing head keeps enough elastic space.
Preferably, the middle section of the side shaping block 24 is provided with a cylindrical shape 241, and the reset piece 232 is a reset spring and is sleeved on the middle cylindrical section of the side shaping block 24; one end of the reset spring is connected with the side shaping block, and the other end of the reset spring is connected with the profiling side pressing block; the installation is convenient, and the reset reliability is good.
Preferably, the upper surface of the lower die 2 is provided with a limit groove 25 for limiting the driving rack 230; the deflection driving and resetting stability is good.
Preferably, the side shaping blocks 24, the shaping die 201 and the reset member 232 form a group of units, the units are provided with a plurality of groups on the lower die 2, and the side shaping blocks 24 are all driven by the side cutter 11; the high-precision synchronous side shaping operation of a plurality of positions is facilitated.
According to the turnover shaping die for the automobile framework part, as shown in fig. 4, the turnover shaping method for the automobile framework part comprises the following steps:
s01: placing a workpiece on a profiling positioning block of the lower die for positioning, adsorbing the workpiece by a magnet on the profiling positioning block, and then enabling the upper die to move downwards;
s02: a plurality of parallel material pressing rollers on the flexible pressing head are contacted and bent to deform to press the workpiece;
s03: the upper die continues to move downwards, the side cutter contacts the profiling side pressing block and drives the profiling side pressing block to slide transversely, the driving rack moves along with the movement of the profiling side pressing block to drive the driving gear to rotate, the profiling positioning block deflects, and the first inclined surface is separated from the second inclined surface when the profiling side pressing block is contacted with the profiling positioning block;
s04: the upper die continues to descend, the side cutter contacts the side shaping block and drives the side shaping block to move towards the profiling positioning block, and the side shaping block is matched with the shaping female die to shape the workpiece;
s05: after shaping is finished, the upper die ascends, and the side shaping block, the profiling side pressing block and the profiling positioning block reset;
overall structure is reasonable and compact, does not increase the volume, go up and down all forward going on, and can make synchronous motion between profile side briquetting and the profile locating piece have better precision through gear and rack cooperation, the precision control of plastic just can be ensured to the side shaping piece of rethread independent design, in addition, the power that provides upset and plastic through the unilateral sword can make the simplification that the mould structure becomes, and the design of flexible pressure holding head and magnet can ensure the stability of product deflection process.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (7)
1. The turnover shaping method of the automobile framework part is characterized by comprising an upper die and a lower die, wherein a profiling positioning block for placing and positioning a workpiece, a rotating shaft fixedly arranged on the profiling positioning block in a penetrating way and two bearing seats respectively rotatably connected with two ends of the rotating shaft are arranged on the lower die, and a magnet for adsorbing the workpiece is arranged on the profiling positioning block; a profiling side pressing block and a reset component for resetting the profiling positioning block after moving are arranged on one side of the lower die in a sliding manner, a longitudinal driving gear is coaxially fixed on the rotating shaft, and a transverse driving rack meshed with the driving gear is arranged on the profiling side pressing block; the upper die is elastically connected with a flexible pressing head for pressing and holding a workpiece, the flexible pressing head comprises a plurality of side-by-side material pressing rollers which can rotate and bend, and the length direction of the material pressing rollers is consistent with that of the rotating shaft; the upper die is further provided with a side cutter, a first inclined surface is arranged on one side of the lower end of the side cutter, a second inclined surface matched with the first inclined surface is arranged at the tail end of the upper surface of the profiling side pressing block, a side shaping block is movably arranged in the profiling side pressing block in a penetrating mode, and a third inclined surface matched with the first inclined surface is arranged at the tail end of the upper surface of the side shaping block; a resetting piece for resetting the side shaping block is arranged on the profiling side pressing block; a shaping female die corresponding to the side shaping block is arranged on the profiling positioning block;
the method comprises the following steps:
the first step is as follows: placing a workpiece on a profiling positioning block of the lower die for positioning, adsorbing the workpiece by a magnet on the profiling positioning block, and then enabling the upper die to move downwards;
the second step is that: a plurality of parallel material pressing rollers on the flexible pressing head are contacted and bent to deform to press the workpiece;
the third step: the upper die continues to move downwards, the side cutter contacts the profiling side pressing block and drives the profiling side pressing block to slide transversely, the driving rack moves along with the movement of the profiling side pressing block to drive the driving gear to rotate, the profiling positioning block deflects, and the first inclined surface is separated from the second inclined surface when the profiling side pressing block is contacted with the profiling positioning block;
the fourth step: the upper die continues to descend, the side cutter contacts the side shaping block and drives the side shaping block to move towards the profiling positioning block, and the side shaping block is matched with the shaping female die to shape the workpiece;
the fifth step: after the shaping is finished, the upper die moves upwards, and the side shaping block, the profiling side pressing block and the profiling positioning block reset.
2. The method for turning and shaping the automobile framework part according to claim 1, wherein two driving gears are arranged at two ends of the profiling positioning block respectively; the height of the outer surface of the driving gear is lower than that of a workpiece placed on the profiling positioning block.
3. The method for turning and shaping the automobile frame part according to claim 2, wherein the flexible pressing head further comprises an inverted concave bracket, and a plurality of elastic rods for installing the nip rolls in a penetrating manner are arranged side by side on the inner wall of the inverted concave bracket.
4. The method for turning over and shaping an automobile frame part according to claim 3, wherein the upper end of the inverted concave bracket is connected to the upper die through a plurality of nitrogen springs.
5. The turnover shaping method of the automobile framework part as claimed in any one of claims 1 to 4, wherein the middle section of the side shaping block is provided with a cylindrical shape, and the reset member is a reset spring and is sleeved on the middle cylindrical section of the side shaping block; one end of the reset spring is connected with the side shaping block, and the other end of the reset spring is connected with the profiling side pressing block.
6. The method for turning over and shaping the automobile frame part according to any one of claims 1 to 4, wherein a limiting groove for limiting the driving rack is formed in the upper surface of the lower die.
7. The method for turning over and shaping an automobile frame part according to any one of claims 1 to 4, wherein the side shaping blocks, the shaping female die and the reset member constitute a set of unit, a plurality of sets of the unit are arranged on the lower die, and the side shaping blocks are driven by the side cutter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011104765.1A CN112355147B (en) | 2020-10-15 | 2020-10-15 | Turnover shaping method of automobile framework part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011104765.1A CN112355147B (en) | 2020-10-15 | 2020-10-15 | Turnover shaping method of automobile framework part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112355147A CN112355147A (en) | 2021-02-12 |
| CN112355147B true CN112355147B (en) | 2022-02-22 |
Family
ID=74507876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011104765.1A Active CN112355147B (en) | 2020-10-15 | 2020-10-15 | Turnover shaping method of automobile framework part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112355147B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003117616A (en) * | 2001-10-09 | 2003-04-23 | Pacific Ind Co Ltd | Method and device for manufacturing oil pan |
| CN203737839U (en) * | 2014-02-27 | 2014-07-30 | 无锡威唐金属科技有限公司 | Side hole punching and material scraping die |
| CN206455078U (en) * | 2017-02-21 | 2017-09-01 | 深圳亿和模具制造有限公司 | A kind of diel with rotational forming structure in mould |
| CN111167935A (en) * | 2020-01-13 | 2020-05-19 | 东莞市飞尧科技有限公司 | Side punching die for rotary feeding of external material discharging |
| CN210996037U (en) * | 2019-09-16 | 2020-07-14 | 深圳数码模汽车技术有限公司 | Car seat skeleton inclined plane cut-out press |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19848617A1 (en) * | 1998-10-21 | 2000-04-27 | Profil Verbindungstechnik Gmbh | Making electrical connection to sheet part involves screwing into threaded hollow attachment element through sheet part |
-
2020
- 2020-10-15 CN CN202011104765.1A patent/CN112355147B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003117616A (en) * | 2001-10-09 | 2003-04-23 | Pacific Ind Co Ltd | Method and device for manufacturing oil pan |
| CN203737839U (en) * | 2014-02-27 | 2014-07-30 | 无锡威唐金属科技有限公司 | Side hole punching and material scraping die |
| CN206455078U (en) * | 2017-02-21 | 2017-09-01 | 深圳亿和模具制造有限公司 | A kind of diel with rotational forming structure in mould |
| CN210996037U (en) * | 2019-09-16 | 2020-07-14 | 深圳数码模汽车技术有限公司 | Car seat skeleton inclined plane cut-out press |
| CN111167935A (en) * | 2020-01-13 | 2020-05-19 | 东莞市飞尧科技有限公司 | Side punching die for rotary feeding of external material discharging |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112355147A (en) | 2021-02-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212822048U (en) | Stamping device is used in production of stainless steel tableware | |
| CN201291267Y (en) | Punch reverse wedge flanging composite die | |
| CN112355147B (en) | Turnover shaping method of automobile framework part | |
| CN205732550U (en) | A kind of sheet metal bending mould | |
| CN212884361U (en) | Stamping mechanism | |
| CN211135051U (en) | L type workpiece cutting and bending machine | |
| CN216911810U (en) | Slide connecting plate punching press guider | |
| CN207431044U (en) | A kind of bend forming die | |
| CN212976449U (en) | Automobile inner panel support frame flanging die | |
| CN214919781U (en) | Stamping die for sheet metal part | |
| CN212350090U (en) | Stamping die for upper plate of left support of rear spiral spring | |
| CN220837540U (en) | Preforming die | |
| CN219944298U (en) | Vertical support stamping stretching device | |
| CN220111997U (en) | Stamping die | |
| CN111250604B (en) | Secondary flanging die mechanism and flanging method thereof | |
| CN219234088U (en) | Automobile stamping part plate shearing machine | |
| CN217990682U (en) | Stamping die structure | |
| CN218574763U (en) | Stamping die for reverse flanging and edge rolling forming | |
| CN117943480A (en) | Hinge rounding device | |
| CN215315234U (en) | Auxiliary supporting device for mechanical stamping forming | |
| CN220497519U (en) | Automobile plate pressing structure | |
| CN220497586U (en) | Stamping die for mechanical parts | |
| CN218903180U (en) | Ductile plate bending die with adjustable bending angle | |
| CN217704672U (en) | High-precision wiper motor pivot bracket die | |
| CN220049540U (en) | Thin-wall piece bending machine |
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 |