CN204817694U - U type deep floor compound mould of blanking that punches a hole - Google Patents
U type deep floor compound mould of blanking that punches a hole Download PDFInfo
- Publication number
- CN204817694U CN204817694U CN201520471641.5U CN201520471641U CN204817694U CN 204817694 U CN204817694 U CN 204817694U CN 201520471641 U CN201520471641 U CN 201520471641U CN 204817694 U CN204817694 U CN 204817694U
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Abstract
U type deep floor compound mould of blanking that punches a hole, it comprises last membrane module and lower membrane module, last membrane module include die shank, dnockout pole, upper die base, hexagon socket head cap screw, go up die crushion board, die, dnockout piece, guide pin bushing, cylinder locating pin, the terrace die punches a hole, lower membrane module include the stripper, the screw of unloading, the rubber of unloading, die holder, bolt, cushion, fixed pin, compression spring, soket head cap screw, locating pin, blanking terrace die, guide pillar. The utility model discloses having guaranteed product quality's technical requirement effectively, having ensured that each size uniformity is good, the product surface is pleasing to the eye moreover, only need replacement parts, can realize different kinds of materials, the processing of different U type deep floor, the utility model discloses simple structure, easy and simple to handle, low in manufacturing cost has improved the work efficiency, processes effectually moreover, and the practicality is strong.
Description
Technical field
The utility model relates to a kind of cold punching die of field of machining, particularly a kind of U-shaped reinforcement gusset punching and blanking composite die.
Background technology
U-shaped reinforcement gusset is the critical piece of automobile axle tie rod assembly, at present, conventional processing mode takes first Linear cut profile, carry out Drilling operation again, this preparation method, production efficiency is low, cost of manufacture is high, owing to part there being two holes, need time shaping to position with these two, after boring, the uniformity of part processing is poor, pitch-row and dimensional accuracy can not meet technical requirement, even if make, identical state can not be reached with the part matched, face shaping unsightly, also easily produce after assembling and loosen, part is easily run out, impact is caused on the security of automobile.
Utility model content
The purpose of this utility model be overcome prior art above-mentioned deficiency and a kind of U-shaped reinforcement gusset punching and blanking composite die is provided, it can be enhanced productivity, and effectively ensures the uniformity of product.
The technical solution of the utility model is: U-shaped reinforcement gusset punching and blanking composite die, it is made up of upper die component and lower mold assemblies.
Described upper die component comprises: die shank, knockout rod, upper bolster, hexagon socket head cap screw, upper die plate, die, dnockout block, guide pin bushing, cylindrical positioning pins, piercing punch.
Described lower mold assemblies comprises: stripper, unloading bolt, discharging rubber, die shoe, bolt, cushion block, steady pin, Compress Spring, soket head cap screw, alignment pin, blanking punch, guide pillar.
Described die shank comprises: endoporus, small end, press-in end, hold greatly, and endoporus is located at the central authorities of die shank, and small end is located at the top of die shank, and large end is located at the bottom of die shank, and press-in end is located at above large end.
Described knockout rod comprises: major part, microcephaly, the end of thread, and major part is located at the top of knockout rod, and microcephaly is located at the centre of knockout rod, and the end of thread is located at the below of knockout rod.
Described upper bolster comprises: guide pin bushing installing hole, die installing hole, die locating hole and die shank installing hole, guide pin bushing installing hole is located at the both sides, top of upper bolster, die installing hole is located at surrounding in the middle of upper bolster, die locating hole is located near die installing hole, and die shank installing hole is located at the centre of upper bolster.
Described upper die plate comprises: upper bolster installing hole, upper bolster pin hole, piercing punch installing hole, upper bolster installing hole is located at the surrounding of upper die plate, upper bolster pin hole is located near upper bolster installing hole, and piercing punch installing hole is located at the central authorities of upper die plate.
Described die comprises: upper die plate installs screwed hole, upper die plate locating hole, blanking shape I, upper die plate installs the surrounding that screwed hole is located at die, upper die plate locating hole is located at upper die plate and installs near screwed hole, and blanking shape I is located at the central authorities of die.
Described dnockout block comprises: circular shape I, and piercing punch installing hole, knockout rod install screwed hole, and circular shape I is located at the periphery of dnockout block, and piercing punch installing hole is located at the middle both sides of dnockout block, and knockout rod installs the central authorities that screwed hole is located at dnockout block.
Described piercing punch comprises: fixing large end, fixing small end, punching end, fixing large end is located at the top of piercing punch, and fixing small end is located at the middle part of punch, and punching end is located at the bottom of punch.
Die shank is positioned at the top of upper bolster, small end upward, be pressed in the die shank installing hole of upper bolster by close-fitting mode, knockout rod microcephaly is arranged in the endoporus of die shank, knockout rod major part is positioned at the top of die shank, the knockout rod end of thread is connected with dnockout block, upper die plate and die are positioned in the middle of the below of upper bolster, all be fixedly mounted on successively below upper bolster by hexagon socket head cap screw and cylindrical positioning pins, die dnockout block is arranged in the blanking die in the middle of die, two piercing punches are positioned at the centre of upper die plate, the fixing of piercing punch holds greatly the below being fixed on upper die plate by close-fitting mode, the punching end of two piercing punches passes the piercing punch installing hole of dnockout block, two guide pin bushings are positioned at the both sides in front below upper bolster, the below of upper bolster is arranged on by close-fitting mode.
Described stripper comprises: screw mounting hole, dowel hole, circular shape II, and screw mounting hole is located at the surrounding of stripper, and circular shape II is located at the central authorities of stripper, and dowel hole is located near circular shape II.
Described die shoe comprises: guide pillar installing hole, unloading bolt installing hole, punch installing hole, punch dowel hole, cushion block install screwed hole, guide pin bushing installing hole is located at the both sides, top of die shoe, unloading bolt installing hole is located at die shoe surrounding, punch installing hole is located in the middle of die shoe, punch dowel hole is located near punch installing hole, and cushion block installs the side that screwed hole is located at unloading bolt installing hole.
Described alignment pin comprises: small column, big column, spring positioning end, and small column is located at the top of alignment pin, and big column is located at the middle part of alignment pin, and spring positioning end is located at the bottom of alignment pin.
Described blanking punch comprises: blanking shape II, die shoe install screwed hole, die shoe dowel hole, punching concave die shape, blanking shape II is located at the periphery of blanking punch, the surrounding that screwed hole is located at blanking punch installed by die shoe, die shoe dowel hole is located at die shoe and installs near screwed hole, and blanking shape II is located at the centre of blanking punch.
Blanking punch is positioned at the centre of die shoe, the top of die shoe is arranged on by soket head cap screw and cylindrical positioning pins, stripper is positioned at the periphery of blanking punch, circular shape in the middle of stripper is similar with the blanking shape of blanking punch, the upper plane of stripper is parallel with plane on blanking punch, and in a plane, discharging rubber is positioned at the below of stripper, be connected with die shoe by unloading bolt, three alignment pins are arranged in the dowel hole of stripper, Compress Spring is positioned at the spring terminal of alignment pin, two cushion blocks are positioned at the below of die shoe, be mounted by means of bolts on the both sides of die shoe, two guide pillars are positioned at the both sides above die shoe, be arranged on die shoe by close-fitting mode.
Multiple die, piercing punch, blanking punch can be designed according to different size and variety classes, die in upper bolster and the blanking punch in die shoe can be designed to block insert type, can change arbitrarily, the stripper of die shoe and the dnockout block of upper bolster also can design plurality of specifications, sizes, different types of, when running into the U-shaped reinforcement gusset of different size, only piercing punch, die and blanking punch, stripper and dnockout block need be changed.
The one that the utility model provides U-shaped reinforcement gusset punching and blanking composite die, effectively ensure that the technical requirement of product quality, guarantee that each dimensional uniformity is good, and product external surfaces is attractive in appearance; Only need change parts, can realize different kind of material, different U-shaped reinforcement gusset processing; Structure is simple, easy and simple to handle, and low cost of manufacture improves work efficiency, and processing effect is good, practical.
Be further described below in conjunction with the detailed construction of the drawings and specific embodiments to utility model.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is the structural representation of die shank;
Accompanying drawing 3 is the structural representation of knockout rod;
Accompanying drawing 4 is the structural representation of upper bolster;
Accompanying drawing 5 is the structural representation of upper die plate;
Accompanying drawing 6 is the structural representation of die;
Accompanying drawing 7 is the structural representation of dnockout block;
Accompanying drawing 8 is the structural representation of stripper;
Accompanying drawing 9 is the structural representation of die shoe;
Accompanying drawing 10 is the structural representation of alignment pin;
Accompanying drawing 11 is the structural representation of piercing punch;
Accompanying drawing 12 is the structural representation of blanking punch.
Detailed description of the invention
As shown in drawings: U-shaped reinforcement gusset punching and blanking composite die, it is made up of upper die component and lower mold assemblies.
Described upper die component comprises: die shank 1, knockout rod 2, upper bolster 3, hexagon socket head cap screw 4, upper die plate 5, die 6, dnockout block 7, guide pin bushing 18, cylindrical positioning pins 19, piercing punch 20.
Described lower mold assemblies comprises: stripper 8, unloading bolt 9, discharging rubber 10, die shoe 11, bolt 12, cushion block 13, steady pin 14, Compress Spring 22, soket head cap screw 15, alignment pin 16, blanking punch 21, guide pillar 17.
Described die shank comprises 1: endoporus 1-1, small end 1-2, press-in are held 1-3, held 1-4 greatly, and endoporus 1-1 is located at the central authorities of die shank, and small end 1-2 is located at the top of die shank, and end 1-4 is located at the bottom of die shank greatly, above press-in end 1-3 is located at and holds greatly.
Described knockout rod 2 comprises: major part 2-1, microcephaly 2-2, end of thread 2-3, and major part 2-1 is located at the top of knockout rod, and microcephaly 2-2 is located at the centre of knockout rod, and end of thread 2-3 is located at the below of knockout rod.
Described upper bolster 3 comprises: guide pin bushing installing hole 3-1, die installing hole 3-2, die locating hole 3-3, die shank installing hole 3-4, guide pin bushing installing hole 3-1 is located at the both sides, top of upper bolster, die installing hole 3-3 is located at surrounding in the middle of upper bolster, die locating hole 3-3 is located near die installing hole, and die shank installing hole 3-4 is located at the centre of upper bolster.
Described upper die plate 5 comprises: upper bolster installing hole 5-1, upper bolster pin hole 5-2, piercing punch installing hole 5-3, upper bolster installing hole 5-1 is located at the surrounding of upper die plate, upper bolster pin hole 5-2 is located near upper bolster installing hole, and piercing punch installing hole 5-3 is located at the central authorities of upper die plate.
Described die 6 comprises: upper die plate installs screwed hole 6-1, upper die plate locating hole 6-2, blanking shape I6-3, upper die plate installs the surrounding that screwed hole 6-1 is located at die, upper die plate locating hole 6-2 is located at upper die plate and installs near screwed hole, and blanking shape I6-3 is located at the central authorities of die.
Described dnockout block 7 comprises: circular shape I7-1, piercing punch installing hole 7-2, knockout rod install screwed hole 7-3, circular shape I7-1 is located at the periphery of dnockout block, and piercing punch installing hole 7-2 is located at the middle both sides of dnockout block, and knockout rod installs the central authorities that screwed hole 7-3 is located at dnockout block.
Described piercing punch 20 comprises: fix and hold greatly 20-1, fixing small end 20-2, punching end 20-3, and fixing large end 20-1 is located at the top of piercing punch, and fix the middle part that small end 20-2 is located at punch, punching end 20-3 is located at the bottom of punch.
Die shank 1 is positioned at the top of upper bolster 3, small end 1-1 upward, be pressed in the die shank installing hole 3-4 of upper bolster 3 by close-fitting mode, knockout rod microcephaly 2-2 is arranged in the endoporus of die shank 1, knockout rod major part 2-1 is positioned at the top of die shank 1, knockout rod end of thread 2-3 is connected with dnockout block 7, upper die plate 5 is positioned in the middle of the below of upper bolster 3, die 6 is positioned in the middle of the below of upper die plate 5, all be fixedly mounted on below upper bolster 3 successively by hexagon socket head cap screw 4 and cylindrical positioning pins 19, dnockout block 7 is arranged in the blanking die 6-3 in the middle of die 6, two piercing punches 20 are positioned at the centre of upper die plate 5, the fixing large end 20-1 of piercing punch is fixed on the below of upper die plate 5 by close-fitting mode, the punching end 20-3 of two piercing punches 20 is through in the piercing punch installing hole 7-2 of dnockout block, two guide pin bushings 18 are positioned at the both sides in front below upper bolster 3, the below of upper bolster is arranged on by close-fitting mode.
Described stripper 8 comprises: screw mounting hole 8-1, dowel hole 8-2, circular shape II8-3, and screw mounting hole 8-1 is located at the surrounding of stripper, and circular shape II8-3 is located at the central authorities of stripper, and dowel hole 8-2 is located near circular shape II.
Described die shoe 11 comprises: guide pillar installing hole 11-1, unloading bolt installing hole 11-2, punch installing hole 11-3, punch dowel hole 11-4, cushion block install screwed hole 11-5, guide pin bushing installing hole 11-1 is located at the both sides, top of die shoe, unloading bolt installing hole 11-2 is located at die shoe surrounding, punch installing hole 11-3 is located in the middle of die shoe, punch dowel hole 11-4 is located near punch installing hole, and cushion block installs the side that screwed hole 11-5 is located at unloading bolt installing hole.
Described alignment pin 16 comprises: small column 16-1, big column 16-2, spring positioning end 16-3, and small column 16-1 is located at the top of alignment pin, and big column 16-2 is located at the middle part of alignment pin, and spring positioning end 16-3 is located at the bottom of alignment pin.
Described blanking punch 21 comprises: blanking shape II21-1, die shoe install screwed hole 21-2, die shoe dowel hole 21-3, punching concave die shape 21-4, blanking shape II21-1 is located at the periphery of blanking punch, the surrounding that screwed hole 21-2 is located at blanking punch installed by die shoe, die shoe dowel hole 21-3 is located at die shoe and installs near screwed hole, and punching concave die shape 21-4 is located at the centre of blanking punch.
Blanking punch 21 is positioned at the centre of die shoe 11, the top of die shoe 11 is arranged on by soket head cap screw 15 and steady pin 14, stripper 8 is positioned at the periphery of blanking punch 21, circular shape 8-3 in the middle of stripper is similar with the blanking shape 21-1 of blanking punch, the upper plane of stripper 8 is parallel with plane on blanking punch 21, and in a plane, discharging rubber 10 is positioned at the below of stripper 8, be connected with die shoe 11 by unloading bolt 9, three alignment pins 16 are arranged in the dowel hole 8-2 of stripper, Compress Spring 22 is positioned at the spring terminal 16-3 of alignment pin, two cushion blocks 13 are positioned at the below of die shoe 11, the both sides of die shoe 11 are fixedly mounted on by bolt 12, two guide pillars 17 are positioned at the both sides above die shoe 11, be arranged on die shoe by close-fitting mode.
Multiple die 6, piercing punch 20, blanking punch 21 can be designed according to different size and variety classes, die 6 in upper bolster and the blanking punch 21 in die shoe can be designed to block insert type, can change arbitrarily, the stripper 8 of die shoe and the dnockout block 7 of upper bolster also can design plurality of specifications, sizes, different types of, when running into the U-shaped reinforcement gusset of different size, only piercing punch 20, die 6 and blanking punch 21, stripper 8 and dnockout block 7 need be changed.
Operation principle of the present utility model and using method are: be furnished with die shank 1 in the middle of upper bolster 3, be used for and the use of lathe centralized positioning installation, upper bolster 3 both sides are furnished with guide pin bushing 18 and die shoe 11 both sides are furnished with guide pillar 17, be used to, die shoe coordinates the use of location, upper bolster 3 is furnished with in piercing punch 20 and die 6 and is furnished with blanking shape I6-3, blanking shape II21-1 is furnished with in the blanking punch 21 of die shoe, be used to punching, blanking, size is made consistent with the shape of workpiece, it is workpiece punching, the main die cavity of blanking, convex, die size needs to coordinate fine finishining to complete, knockout rod 2 and dnockout block 7 is furnished with in the middle of the die shank 1 of upper bolster, be used for carrying out dnockout to patrix, die shoe is furnished with stripper 8, discharging rubber 10 and unloading bolt 9, be used to discharging, below die shoe, left and right is furnished with screwed hole, be used for cushion block 13 is installed, increase the height of mould.
Before work, first with soket head cap screw and pin, each part is installed on upper die component and lower mold assemblies, ensure the intact rear matched moulds of position dimension, after making the guide pin bushing 18 of upper die component and guide pillar 17 no-float of counterdie, whole set of die is installed on lathe, die shank 1 is nested in the centre bore of lathe, with T-shaped bolt, upper die component and lower mold assemblies are fixed, start lathe, patrix and counterdie are slowly opened, then workpiece is put in the stripper 8 of lower mold assemblies, alignment pin 16 is utilized to position, ensure that location can be rearward, start the machine, upper die component guide pin bushing 18 contacts with the guide pillar 17 in lower mold assemblies, piercing punch 20 simultaneously in upper bolster, die 6 contacts with the blanking punch 21 in die shoe, workpiece is carried out punching, blanking, punching, after blanking terminates, lathe return, knockout rod 2 in patrix carries out dnockout by the knock-out mechanism of lathe, discharging rubber 10 retraction of die shoe carries out discharging.
Claims (4)
1. a U-shaped reinforcement gusset punching and blanking composite die, is characterized in that it comprises upper die component and lower mold assemblies; Described upper die component comprises die shank, knockout rod, upper bolster, upper die plate, die, dnockout block, guide pin bushing, piercing punch; Die shank is positioned at the top of upper bolster, small end upward, knockout rod microcephaly is arranged in the endoporus of die shank, knockout rod major part is positioned at the top of die shank, and the knockout rod end of thread is connected with dnockout block, and upper die plate and die are positioned in the middle of the below of upper bolster, dnockout block is arranged in the blanking die in the middle of die, two piercing punches are positioned at the centre of upper die plate, and the punching end of two piercing punches passes the piercing punch installing hole of dnockout block, and two guide pin bushings are positioned at the both sides in front below upper bolster.
2. U-shaped reinforcement gusset punching and blanking composite die according to claim 1, it is characterized in that described die shank comprises endoporus, small end, press-in end, holds greatly, endoporus is located at the central authorities of die shank, and small end is located at the top of die shank, large end is located at the bottom of die shank, and press-in end is located at above large end; Described knockout rod comprises major part, microcephaly, the end of thread, and major part is located at the top of knockout rod, and microcephaly is located at the centre of knockout rod, and the end of thread is located at the below of knockout rod; Described upper bolster comprises guide pin bushing installing hole, die installing hole, die locating hole and die shank installing hole, guide pin bushing installing hole is located at the both sides, top of upper bolster, die installing hole is located at surrounding in the middle of upper bolster, die locating hole is located near die installing hole, and die shank installing hole is located at the centre of upper bolster; Described upper die plate comprises upper bolster installing hole, upper bolster pin hole, piercing punch installing hole, upper bolster installing hole is located at the surrounding of upper die plate, upper bolster pin hole is located near upper bolster installing hole, and piercing punch installing hole is located at the central authorities of upper die plate; Described die comprises upper die plate and installs screwed hole, upper die plate locating hole, blanking shape I, upper die plate installs the surrounding that screwed hole is located at die, upper die plate locating hole is located at upper die plate and installs near screwed hole, and blanking shape I is located at the central authorities of die; Described dnockout block comprises circular shape I, and piercing punch installing hole, knockout rod install screwed hole, and circular shape I is located at the periphery of dnockout block, and piercing punch installing hole is located at the middle both sides of dnockout block, and knockout rod installs the central authorities that screwed hole is located at dnockout block; Described piercing punch comprises fixing large end, fixing small end, punching end, and fixing large end is located at the top of piercing punch, and fixing small end is located at the middle part of punch, and punching end is located at the bottom of punch.
3. U-shaped reinforcement gusset punching and blanking composite die according to claim 1, is characterized in that described lower mold assemblies comprises stripper, unloading bolt, discharging rubber, die shoe, bolt, cushion block, Compress Spring, alignment pin, blanking punch, guide pillar; Blanking punch is positioned at the centre of die shoe, stripper is positioned at the periphery of blanking punch, circular shape in the middle of stripper is similar with the blanking shape of blanking punch, the upper plane of stripper is parallel with plane on blanking punch, and in a plane, discharging rubber is positioned at the below of stripper, three alignment pins are arranged in the dowel hole of stripper, Compress Spring is positioned at the spring terminal of alignment pin, and two cushion blocks are positioned at the below of die shoe, and two guide pillars are positioned at the both sides above die shoe.
4. U-shaped reinforcement gusset punching and blanking composite die according to claim 3, it is characterized in that: described stripper comprises screw mounting hole, dowel hole, circular shape II, screw mounting hole is located at the surrounding of stripper, circular shape II is located at the central authorities of stripper, and dowel hole is located near circular shape II; Described die shoe comprises guide pillar installing hole, unloading bolt installing hole, punch installing hole, punch dowel hole, cushion block installation screwed hole, guide pin bushing installing hole is located at the both sides, top of die shoe, unloading bolt installing hole is located at die shoe surrounding, punch installing hole is located in the middle of die shoe, punch dowel hole is located near punch installing hole, and cushion block installs the side that screwed hole is located at unloading bolt installing hole; Described alignment pin comprises small column, big column, spring positioning end, and small column is located at the top of alignment pin, and big column is located at the middle part of alignment pin, and spring positioning end is located at the bottom of alignment pin; Described blanking punch comprises blanking shape II, die shoe installs screwed hole, die shoe dowel hole, punching concave die shape, blanking shape II is located at the periphery of blanking punch, the surrounding that screwed hole is located at blanking punch installed by die shoe, die shoe dowel hole is located at die shoe and installs near screwed hole, and blanking shape II is located at the centre of blanking punch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520471641.5U CN204817694U (en) | 2015-07-03 | 2015-07-03 | U type deep floor compound mould of blanking that punches a hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520471641.5U CN204817694U (en) | 2015-07-03 | 2015-07-03 | U type deep floor compound mould of blanking that punches a hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204817694U true CN204817694U (en) | 2015-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520471641.5U Expired - Fee Related CN204817694U (en) | 2015-07-03 | 2015-07-03 | U type deep floor compound mould of blanking that punches a hole |
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| CN (1) | CN204817694U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105689533A (en) * | 2016-03-14 | 2016-06-22 | 昆山邦泰汽车零部件制造有限公司 | Fixed discharging type stamping die |
| CN105855390A (en) * | 2016-05-14 | 2016-08-17 | 芜湖卓越空调零部件有限公司 | Forming mould for upper bearing silencer |
| CN107030177A (en) * | 2017-06-14 | 2017-08-11 | 江西江铃底盘股份有限公司 | A kind of automobile drive axle adjusting nut Blanking Punching Compound Die |
| CN109201889A (en) * | 2018-10-10 | 2019-01-15 | 哈尔滨建成集团有限公司 | A kind of double-walled intersection bending deformed spring punching and blanking composite die |
| CN111687308A (en) * | 2019-03-14 | 2020-09-22 | 河南理工大学 | Adjustable ultra-thin metal sheet blanking, punching and deburring ultrasonic composite die |
-
2015
- 2015-07-03 CN CN201520471641.5U patent/CN204817694U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105689533A (en) * | 2016-03-14 | 2016-06-22 | 昆山邦泰汽车零部件制造有限公司 | Fixed discharging type stamping die |
| CN105855390A (en) * | 2016-05-14 | 2016-08-17 | 芜湖卓越空调零部件有限公司 | Forming mould for upper bearing silencer |
| CN107030177A (en) * | 2017-06-14 | 2017-08-11 | 江西江铃底盘股份有限公司 | A kind of automobile drive axle adjusting nut Blanking Punching Compound Die |
| CN109201889A (en) * | 2018-10-10 | 2019-01-15 | 哈尔滨建成集团有限公司 | A kind of double-walled intersection bending deformed spring punching and blanking composite die |
| CN111687308A (en) * | 2019-03-14 | 2020-09-22 | 河南理工大学 | Adjustable ultra-thin metal sheet blanking, punching and deburring ultrasonic composite die |
| CN111687308B (en) * | 2019-03-14 | 2022-05-06 | 河南理工大学 | Adjustable ultra-thin metal sheet blanking, punching and deburring ultrasonic composite die |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20180703 |