CN103537541A - Installing hole punching device - Google Patents
Installing hole punching device Download PDFInfo
- Publication number
- CN103537541A CN103537541A CN201310441796.XA CN201310441796A CN103537541A CN 103537541 A CN103537541 A CN 103537541A CN 201310441796 A CN201310441796 A CN 201310441796A CN 103537541 A CN103537541 A CN 103537541A
- Authority
- CN
- China
- Prior art keywords
- installing hole
- punching
- drift
- movable block
- 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.)
- Granted
Links
Images
Landscapes
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention provides an installing hole punching device. The installing hole punching device comprises a punching head, a model button, a movable block and an elastic piece. The punching head comprises a punching rod and a punching hole head, the model button is matched with the punching head to punch an installing hole in a plate, the movable block is arranged in the model button and the front end of the movable block is used for abutting against the plate. The movable block is provided with a channel extending in the moving direction of the punching head, and the shape of the channel is matched with the shape of the punching hole head; when the punching head punches the hole, one part of the punching hole head stretches in the channel; the elastic piece is connected with the movable block; when flanging of the punching head is conducted, the movable block moves along the punching head and enables the elastic piece to be compressed; when the elastic piece extends, the elastic piece drives the movable block to abut against the plate. The installing hole punching device is provided with the movable block, so that when the punching head punches the hole, one part of the punching hole head stretches into the channel extending in the moving direction of the punching head, and then the punching head rushes waste materials directly in the channel. Due to the fact that the movable block is arranged, the occurrence of damage of structures of dies such as the punching head and the model button and plate scrap caused by the fact that the waste materials are reversed on a plastic surface when the punching head punches the hole is effectively avoided.
Description
Technical field
The present invention relates to Stamping Die Technology field, particularly relate to a kind of installing hole decompressor.
Background technology
As shown in Figure 1, the installing hole 100 of car door lock be one with the recessed hole of tapering.As shown in Fig. 2-Fig. 4, prior art, when making the installing hole 100 of car door lock, is carried out the method for punching and flange simultaneously for saving operation generally adopts the drift 10 of inclined wedge-shaped on sheet material 90.Because mould button 20 when the punching does not provide enough laminatings to sheet material 90, in punch process, tend to occur following problem:
1. the installing hole 100 forming after punching easily produces burr, tears, and wave profile appears in the shape of installing hole 100, and installing hole 100 precision can not guarantee.Extension and the low factor of debugging stamping-out speed of considering sheet material 90, the waste material 91 thrusting may rest on shaping surface 22, so directly makes sheet material 90 scrap, and also may cause the damage of the mould structures such as drift 10 and mould button 20.
2. waste material 91 discharges of prior art are obstructed, and the waste material 91 of mould button 20 the insides can not guarantee disposable discharge.Take that shown in Fig. 1, to need to process three installing holes 100 be example, as shown in Figure 4, if first waste material and the second sheet waste material are not discharged, when punching the 3rd sheet waste material, between mould button 20 the inside the second sheet waste materials and the 3rd sheet waste material, form high pressure, while making like this drift 10 exit, waste material can be taken out of from mould button 20, the waste material dropping out may rest on shaping surface 22.Process these waste materials of taking out of and can cause production efficiency to reduce, if the waste material bringing out can not be processed in time, again just may make mould be damaged during punching press, and increase production risk.
Summary of the invention
An object of the present invention is to provide a kind of installing hole decompressor that can prevent that drift and mould button from damaging.
Further object of the present invention is that a kind of installing hole decompressor that facilitates waste material to discharge from mould button the inside will be provided.
For this reason, a kind of installing hole decompressor provided by the invention, comprising:
Drift, described drift comprises jumper bar and punching head;
Mould button, described mould button coordinates and on sheet material, stamps out installing hole with described drift;
Movable block, be arranged in described mould button and front end for inconsistent with described sheet material, described movable block has the passage extending along the direction of motion of described drift; The shape of described passage and the shape of described punching head match, and when described drift punching, a part for described punching head stretches in described passage;
Elastic component, is connected with described movable block; When described drift flange, described movable block is followed described drift and is moved, and makes described elastic component compression; When described elastic component stretches, described elastic component drive described movable block and described sheet material inconsistent.
Further, described drift inside is provided with for by the passage of gases at high pressure, and described passage runs through described jumper bar and described punching head.
Further, described installing hole decompressor also comprises:
Sliding shoe, is provided with described drift on described sliding shoe;
Drive block, described drive block drives described sliding shoe to slide;
Described sliding shoe bottom is provided with track, and when described drive block drives described sliding shoe to slide along described track, described drift along continuous straight runs moves towards described mould button.
Further, described installing hole decompressor also comprises:
Material returned piece, described mould button is installed on described material returned piece;
Described sliding shoe and described material returned piece form opening jointly; The end portion of described drive block forms the reducing matching with described opening, and the upper part of described drive block is straight.
Further, described installing hole decompressor also comprises:
Binder block, described binder block has through the through hole at described binder block middle part, and when described drift punching, described drift moves towards described mould button by described through hole;
Described binder block and described mould button remain on vertical direction by described sheet material jointly.
Further, described mould button inside is provided with protruding block;
Described movable block outside is provided with the fixture block matching with described block;
When described block contacts with described fixture block, the front end of described movable block is concordant in vertical plane with the front end face of described mould button.
Further, described elastic component is nitrogen spring, and described elastic component is arranged at the afterbody of described movable block.
Further, between described jumper bar and described punching head, be provided with the turn-up portion that protrudes from described jumper bar, described turn-up portion coordinates described mould button by described installing hole flange.
Installing hole decompressor of the present invention has movable block, and when described drift punching, a part for described punching head stretches in the passage extending along the direction of motion of drift, thereby drift directly pours described passage by waste material.The arranging that waste material while effectively having prevented drift punching rests on shaping surface of movable block and the generation that the sheet material causing scraps and the mould structure such as drift, mould button damages.
Drift of the present invention inside is provided with for by the passage of gases at high pressure, and described passage runs through jumper bar and punching head.When described drift punching, a part for described punching head stretches in described passage, and now gases at high pressure can easily blow out waste material by passage in passage, has prevented the accumulation of waste material in mould button.
Movable block front end of the present invention and sheet material are inconsistent, and when drift punching and flange, movable block can support sheet material like this, and this is designed with to be beneficial to and reduces installing hole and occur burr, tear and wave profile, thereby guarantee the precision of installing hole.
According to the detailed description to the specific embodiment of the invention by reference to the accompanying drawings below, those skilled in the art will understand above-mentioned and other objects, advantage and feature of the present invention more.
Accompanying drawing explanation
Hereinafter in exemplary and nonrestrictive mode, describe specific embodiments more of the present invention in detail with reference to the accompanying drawings.In accompanying drawing, identical Reference numeral has indicated same or similar parts or part.It should be appreciated by those skilled in the art that these accompanying drawings may not draw in proportion.In accompanying drawing:
Fig. 1 is the installing hole illustrative diagram of car door lock;
The drift schematic diagram of state that contacts with plate when Fig. 2 is prior art punching and flange;
Fig. 3 is prior art punching schematic diagram;
Fig. 4 is prior art flange schematic diagram;
Fig. 5 is the installing hole decompressor schematic diagram of illustrative examples of the present invention;
Fig. 6 is the work schematic diagram of Fig. 5 installing hole decompressor;
Fig. 7 is the installing hole decompressor that does not comprise drive block and sliding shoe of illustrative examples of the present invention and the decomposing schematic representation of sheet material;
Fig. 8 is the combination schematic diagram of the decompressor of installing hole shown in Fig. 7;
Fig. 9 is the punching schematic diagram of the decompressor of installing hole shown in Fig. 8;
Figure 10 is the flange schematic diagram of the decompressor of installing hole shown in Fig. 8;
Figure 11 is the view after punching and flange that completes of the decompressor of installing hole shown in Fig. 8.
In figure, Reference numeral is as follows:
10-drift, 11-jumper bar, 12-punching head, 13-passage, 14-turn-up portion;
20-mould button, 21-block, 22-shaping surface;
30-movable block, 31-passage, 32-fixture block;
40-elastic component;
50-sliding shoe, 51-opening;
60-drive block, 61-reducing;
70-material returned piece;
80-binder block, 81-through hole;
90-sheet material, 91-waste material;
100-installing hole.
The specific embodiment
As shown in Figure 7, a kind of installing hole decompressor of the present invention, comprises drift 10, mould button 20, movable block 30 and elastic component 40.Wherein, described drift 10 comprises jumper bar 11 and punching head 12, thus shown in jumper bar 11 for be connected with power source make shown in drift 10 can move, described punching head 12 is for carrying out punching to sheet material 90.Fig. 8 is the combination schematic diagram of the decompressor of installing hole shown in Fig. 7, is also the working state schematic representation of installing hole decompressor.As shown in Figure 8, described mould button 20 is inconsistent with described sheet material 90, thus shown in mould button 20 coordinate and on sheet material 90, stamp out installing hole 100 with described drift 10.Punching press herein comprises punching and flange.Duty as shown in Figure 8, movable block 30 be arranged in described mould button 20 and front end and described sheet material 90 inconsistent, front end herein all refers to the left end of movable block 30 in Fig. 7 and Fig. 8.Described movable block 30 has the passage 31 extending along the direction of motion of described drift 10, because part or all of punching head 12 can pour described passage 31 described in when punching and flange, and consider the supporting role of 30 pairs of described sheet materials 90 of described movable block, the shape of the shape of described passage 31 and described punching head 12 matches.As shown in Fig. 8-Figure 11, elastic component 40 is connected with described movable block 30.When described drift 10 flange, described movable block 30 is followed described drift 10 and is moved, and makes described elastic component 40 compressions.When described elastic component 40 stretches, described elastic component 40 drives described movable block 30 inconsistent with described sheet material 90, now the state for preparing to carry out punching or re-start punching.Because installing hole decompressor of the present invention has movable block 30, so when described drift 10 punching, a part for described punching head 12 stretches in the passage 31 extending along the direction of motion of drift 10, thereby drift 10 directly pours described passage 31 by waste material 91.Scrapping and generation that the mould structure such as drift 10, mould button 20 damages of the arranging that waste material 91 while effectively having prevented drift 10 punching rests on shaping surface 22 of movable block 30 and the sheet material 90 causing.And, movable block 30 front ends of the present invention and sheet material 90 are inconsistent, and when drift 10 punchings and flange, movable block 30 can support sheet material 90 like this, this is designed with to be beneficial to and reduces installing hole 100 and occur burr, tear and wave profile, thereby guarantees the precision of installing hole 100.
As shown in Fig. 7-Figure 11, between described jumper bar 11 and described punching head 12, be provided with the turn-up portion 14 that protrudes from described jumper bar 11, described turn-up portion 14 is wedge shape, and described turn-up portion 14 can fit with turn-up portion 14 described in described shaping surface 22.Thereby described turn-up portion 14 coordinates described mould button 20 by described installing hole 100 flange.In the present invention, jumper bar 11 by turn-up portion 14 with shown in punching head 12 be fixedly connected with, can increase the intensity of described punching head 12.The present invention has given up at punching head 12 front ends the design that tiny liftout attachment is discharged waste material has been set, thereby has stopped this tiny liftout attachment even risk of fracture easy to wear, has increased the durability of installing hole decompressor of the present invention.
As shown in Fig. 7-Figure 11, described drift of the present invention 10 inside are provided with for passing through the passage 13 of gases at high pressure, and described passage 13 runs through described jumper bar 11 and described punching head 12.As shown in Figure 9, when described drift 10 punching, a part for described punching head 12 stretches in described passage 31, and now gases at high pressure can be easy to waste material 91 to blow out from passage 31 by passage 13, have prevented the accumulation of waste material 91 in mould button 20.
As shown in Figure 5 and Figure 6, described installing hole decompressor also comprises: sliding shoe 50, drive block 60 and material returned piece 70.Wherein, on described sliding shoe 50, described drift 10 is installed.Described drive block 60 drives described sliding shoe 50 to slide.Described sliding shoe 50 bottoms are provided with track (not shown), and when described drive block 60 drives described sliding shoe 50 to slide along described track, described drift 10 along continuous straight runs are towards described mould button 20 motions.Described mould button 20 is installed on described material returned piece 70, and described material returned piece 70 integral body are " U " shape.In Fig. 5 and Fig. 6, described sliding shoe 50 forms opening 51 jointly with the left part of described material returned piece 70, and the end portion of described drive block 60 forms the reducing 61 matching with described opening 51.The upper part of described drive block 60 is straight, and when the upper part of described like this drive block 60 contacts with the left part of described sliding shoe 50 and described material returned piece 70, drive block 60 no longer drives sliding shoe 50 motions, prevents that drift 10 from damaging installing hole 100.
As shown in Fig. 5-Figure 11, described installing hole decompressor also comprises binder block 80, and described binder block 80 has through the through hole 81 at described binder block 80 middle parts, and when described drift 10 punching, described drift 10 moves towards described mould button 20 by described through hole 81; Described binder block 80 remains on vertical direction by described sheet material 90 with described mould button 20 jointly by pressure.
As shown in Fig. 7-Figure 11, described mould button 20 inside are provided with protruding block 21.Described movable block 30 outsides are provided with the fixture block 32 matching with described block 21.As shown in Figure 8 and Figure 9, when described block 21 contacts with described fixture block 32, the front end of described movable block 30 is concordant in vertical plane with the front end face of described mould button 20.
As a kind of preferred embodiment, described elastic component 40 is nitrogen spring, and described elastic component 40 is arranged at the afterbody of described movable block 30.
So far, those skilled in the art will recognize that, although detailed, illustrate and described a plurality of exemplary embodiment of the present invention herein, but, without departing from the spirit and scope of the present invention, still can directly determine or derive many other modification or the modification that meets the principle of the invention according to content disclosed by the invention.Therefore, scope of the present invention should be understood and regard as and cover all these other modification or modifications.
Claims (8)
1. an installing hole decompressor, is characterized in that, described installing hole decompressor comprises:
Drift (10), described drift (10) comprises jumper bar (11) and punching head (12);
Mould button (20), described mould button (20) coordinates with described drift (10) and on sheet material (90), stamps out installing hole (100);
Movable block (30), be arranged in described mould button (20) and front end for inconsistent with described sheet material (90), described movable block (30) has the passage (31) extending along the direction of motion of described drift (10); The shape of the shape of described passage (31) and described punching head (12) matches, and when described drift (10) punching, a part for described punching head (12) stretches in described passage (31);
Elastic component (40), is connected with described movable block (30); When described drift (10) flange, it is mobile that described movable block (30) is followed described drift (10), and make described elastic component (40) compression; When described elastic component (40) stretches, described elastic component (40) drives described movable block (30) and described sheet material (90) inconsistent.
2. installing hole decompressor according to claim 1, is characterized in that,
Described drift (10) inside is provided with for the passage by gases at high pressure (13), and described passage (13) runs through described jumper bar (11) and described punching head (12).
3. installing hole decompressor according to claim 1 and 2, is characterized in that, described installing hole decompressor also comprises:
Sliding shoe (50), is provided with described drift (10) on described sliding shoe (50);
Drive block (60), described drive block (60) drives described sliding shoe (50) to slide;
Described sliding shoe (50) bottom is provided with track, and when described drive block (60) drives described sliding shoe (50) to slide along described track, described drift (10) along continuous straight runs moves towards described mould button (20).
4. installing hole decompressor according to claim 3, is characterized in that, described installing hole decompressor also comprises:
Material returned piece (70), described mould button (20) is installed on described material returned piece (70);
Described sliding shoe (50) forms opening (51) jointly with described material returned piece (70); The end portion of described drive block (60) forms the reducing (61) matching with described opening (51), and the upper part of described drive block (60) is straight.
5. according to the installing hole decompressor described in any one in claim 1-4, it is characterized in that, described installing hole decompressor also comprises:
Binder block (80), described binder block (80) has through the through hole (81) at described binder block (80) middle part, and when described drift (10) punching, described drift (10) is mobile towards described mould button (20) by described through hole (81);
Described binder block (80) remains on vertical direction by described sheet material (90) jointly with described mould button (20).
6. according to the installing hole decompressor described in any one in claim 1-5, it is characterized in that,
Described mould button (20) inside is provided with protruding block (21);
Described movable block (30) outside is provided with the fixture block (32) matching with described block (21);
When described block (21) contacts with described fixture block (32), the front end of described movable block (30) is concordant in vertical plane with the front end face of described mould button (20).
7. according to the installing hole decompressor described in any one in claim 1-6, it is characterized in that,
Described elastic component (40) is nitrogen spring, and described elastic component (40) is arranged at the afterbody of described movable block (30).
8. according to the installing hole decompressor described in any one in claim 1-7, it is characterized in that,
Between described jumper bar (11) and described punching head (12), be provided with the turn-up portion (14) that protrudes from described jumper bar (11), described turn-up portion (14) coordinates described mould button (20) by described installing hole (100) flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310441796.XA CN103537541B (en) | 2013-09-25 | 2013-09-25 | Installing hole punching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310441796.XA CN103537541B (en) | 2013-09-25 | 2013-09-25 | Installing hole punching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103537541A true CN103537541A (en) | 2014-01-29 |
| CN103537541B CN103537541B (en) | 2017-01-25 |
Family
ID=49961618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310441796.XA Active CN103537541B (en) | 2013-09-25 | 2013-09-25 | Installing hole punching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103537541B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103785741A (en) * | 2014-02-24 | 2014-05-14 | 山东润峰汽车车身制造有限公司 | Burr-free lock nest punching and forming die |
| CN105964784A (en) * | 2016-06-12 | 2016-09-28 | 苏州天朋精密元器件有限公司 | External flanging puncher pin |
| CN105964796A (en) * | 2016-06-12 | 2016-09-28 | 苏州天朋精密元器件有限公司 | External flanging puncher pin |
| CN106799435A (en) * | 2017-02-14 | 2017-06-06 | 珠海格力智能装备技术研究院有限公司 | Pipe orifice shaping tool and pipe body processing equipment |
| CN108421894A (en) * | 2018-03-30 | 2018-08-21 | 北京新能源汽车股份有限公司 | hole flanging and punching structure |
| CN109093004A (en) * | 2018-10-30 | 2018-12-28 | 腾创（天津）精密模具有限公司 | Die flanging punch structure |
| CN109940087A (en) * | 2018-09-11 | 2019-06-28 | 奇瑞汽车股份有限公司 | Hole flanging mold and the mold are rushed by the method for embryo material machine-shaping |
| CN114453473A (en) * | 2022-01-17 | 2022-05-10 | 十堰东森汽车密封件有限公司 | High-efficient turn-ups pressure head |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09201627A (en) * | 1996-01-23 | 1997-08-05 | Ricoh Co Ltd | Burring punch and burring |
| CN201676965U (en) * | 2010-04-14 | 2010-12-22 | 无锡市中捷减震器有限公司 | Punched tape hole flanging die of inner supporting pipe of automobile shock absorber |
| CN202155921U (en) * | 2010-12-14 | 2012-03-07 | 上海华普汽车模具制造有限公司 | Die for lock hole of car door inner plate |
| CN202438613U (en) * | 2012-02-21 | 2012-09-19 | 福建福模精密技术有限公司 | Upper mould component for preventing waste material and jumped material in blanking process |
| CN202447506U (en) * | 2011-12-22 | 2012-09-26 | 成都高原汽车工业有限公司 | Male die of forming composite die for lock hole of vehicle door inner plate |
| CN102962318A (en) * | 2011-09-01 | 2013-03-13 | 苏州汉扬精密电子有限公司 | Lateral hole punching structure |
-
2013
- 2013-09-25 CN CN201310441796.XA patent/CN103537541B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09201627A (en) * | 1996-01-23 | 1997-08-05 | Ricoh Co Ltd | Burring punch and burring |
| CN201676965U (en) * | 2010-04-14 | 2010-12-22 | 无锡市中捷减震器有限公司 | Punched tape hole flanging die of inner supporting pipe of automobile shock absorber |
| CN202155921U (en) * | 2010-12-14 | 2012-03-07 | 上海华普汽车模具制造有限公司 | Die for lock hole of car door inner plate |
| CN102962318A (en) * | 2011-09-01 | 2013-03-13 | 苏州汉扬精密电子有限公司 | Lateral hole punching structure |
| CN202447506U (en) * | 2011-12-22 | 2012-09-26 | 成都高原汽车工业有限公司 | Male die of forming composite die for lock hole of vehicle door inner plate |
| CN202438613U (en) * | 2012-02-21 | 2012-09-19 | 福建福模精密技术有限公司 | Upper mould component for preventing waste material and jumped material in blanking process |
Non-Patent Citations (1)
| Title |
|---|
| 陈炎嗣: "《冲压模具设计手册 多工位级进模》", 31 March 2013, 化学工业出版社 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103785741A (en) * | 2014-02-24 | 2014-05-14 | 山东润峰汽车车身制造有限公司 | Burr-free lock nest punching and forming die |
| CN105964784A (en) * | 2016-06-12 | 2016-09-28 | 苏州天朋精密元器件有限公司 | External flanging puncher pin |
| CN105964796A (en) * | 2016-06-12 | 2016-09-28 | 苏州天朋精密元器件有限公司 | External flanging puncher pin |
| CN106799435A (en) * | 2017-02-14 | 2017-06-06 | 珠海格力智能装备技术研究院有限公司 | Pipe orifice shaping tool and pipe body processing equipment |
| CN106799435B (en) * | 2017-02-14 | 2019-01-04 | 珠海格力智能装备技术研究院有限公司 | Pipe orifice shaping tool and pipe body processing equipment |
| CN108421894A (en) * | 2018-03-30 | 2018-08-21 | 北京新能源汽车股份有限公司 | hole flanging and punching structure |
| CN109940087A (en) * | 2018-09-11 | 2019-06-28 | 奇瑞汽车股份有限公司 | Hole flanging mold and the mold are rushed by the method for embryo material machine-shaping |
| CN109093004A (en) * | 2018-10-30 | 2018-12-28 | 腾创（天津）精密模具有限公司 | Die flanging punch structure |
| CN114453473A (en) * | 2022-01-17 | 2022-05-10 | 十堰东森汽车密封件有限公司 | High-efficient turn-ups pressure head |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103537541B (en) | 2017-01-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103537541A (en) | Installing hole punching device | |
| CN104550462A (en) | Punching device | |
| CN203209529U (en) | Mechanism for flanging and subsequent punching | |
| CN103418695A (en) | Pneumatic type time-delay mechanism for stamping | |
| CN204867056U (en) | A stamping die for bend for disposable 120 degrees | |
| CN202701201U (en) | Punching die scrap material ejecting mechanism | |
| CN209953581U (en) | Stamping die device is used in commodity circulation car production | |
| CN205702038U (en) | A kind of auto partition hole punched device | |
| CN105033059A (en) | Cold stamping negative-angle one-time bending forming device and stamping method thereof | |
| CN202291015U (en) | Backflush punching and forming die | |
| CN204747269U (en) | Forming device of box -like spare | |
| CN204052534U (en) | One is repaiied and is cut shaping mould | |
| CN202725763U (en) | Air cylinder lateral stamping die | |
| CN202606636U (en) | Die oblique wedging punching device | |
| CN204685778U (en) | A kind of stamping machine | |
| CN203711594U (en) | Burr-free lock nest punching mold | |
| CN203018534U (en) | Cylinder sealing fin cylinder diameter enlargement die for four-cylinder engine | |
| CN204234589U (en) | A kind of automobile panel rushes hole flanging mold | |
| CN204074993U (en) | Automatic waste discharge device after punching | |
| CN204194583U (en) | Shape fine blanking die is protected for thin-walled stamping parts | |
| CN203265443U (en) | Sheet metal part stamping fixing device | |
| CN201455097U (en) | Stamping die with bending stamping part | |
| CN202963203U (en) | Punching convex hull mould for steel backing of brake block | |
| KR20070060547A (en) | Cam pierce apparatus for press metal mold | |
| CN204710976U (en) | Side-punching mould |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |