A kind of smart punching die
Technical field:
The utility model relates to the technical field of diel, more specifically to the smart punching die of one.
Background technology:
Smart punching on current automobile metal plate work generally all has high-accuracy punch press to complete, and for the inwall realizing smart punching on sheet metal component all has higher euphotic belt, needs high-accuracy punch press Multi-step forming shaping.But high-accuracy punch press cost is comparatively large, and general panel beating producer cannot meet it and bear its cost, and common punch press cannot meet the requirement of its smart punching height euphotic belt.
Utility model content:
The purpose of this utility model is exactly the deficiency for prior art, and provides a kind of smart punching die, and it can make common punch press meet the requirement of sheet metal component essence punching height euphotic belt.
Technology solution of the present utility model is as follows:
A kind of smart punching die, comprise die shoe and upper bolster, the both sides of upper bolster are fixed with main nitrogen spring, the lower end of main nitrogen spring is fixed on pressuring template, upper bolster is fixed with the first piercing knife successively, second piercing knife, upper chamfer punch, 3rd piercing knife and through hole drift, first piercing knife, second piercing knife, upper chamfer punch, the die shoe of the 3rd piercing knife and the positive downside of through hole drift forms the first punching successively, second punching, first through hole, 3rd punching and the second through hole, die shoe between 3rd punching and the second through hole is fixed with lower chamfer punch,
The pressuring template at described 3rd piercing knife place forms the first pilot hole, 3rd piercing knife is plugged on cushion block, the lower end of cushion block is plugged in the pilot hole of pressuring template, upper end is fixed on the lower surface of die shoe, described cushion block is fixed with auxiliary nitrogen spring, auxiliary nitrogen spring lower end is fixed on die block, die block is plugged in the pilot hole of pressuring template, die block is fixed with guide post, described upper bolster forms the second pilot hole, the upper end of guide post is plugged in the second pilot hole of upper bolster through cushion block.
The head of described upper chamfer punch, through hole drift and lower chamfer punch all conically, the die shoe at lower chamfer punch place forms slotted eye, grafting in slotted eye is also fixed with lower chamfer punch mounting blocks, lower chamfer punch mounting blocks is fixed with lower chamfer punch, lower chamfer punch is inserted with jacking block, the upper surface of die shoe is exposed in jacking block upper end, lower end is fixed with push rod, the lower end of push rod is pressed against on spring through lower chamfer punch mounting blocks, the lower end of spring is pressed against in capping, and capping is fixed on the lower surface of die shoe.
The first described punching, the second punching, the first through hole, the 3rd punching and the second through hole are all molded on embedded block, and embedded block grafting is also bolted on die shoe; The die shoe of described 3rd punching place is fixed with locating dowel, and the head of locating dowel conically.
The lower surface of the pressuring template on the downside of described first piercing knife, the second piercing knife, upper chamfer punch and through hole drift is fixed with protection block; pressuring template with protecting, block forms the via hole of the first piercing knife, the second piercing knife, upper chamfer punch and through hole drift, and the diameter of described first piercing knife, the second piercing knife and the 3rd piercing knife increases progressively successively.
The upside of described lower chamfer punch is provided with pressing plate, and pressing plate is fixed on the lower surface of pressuring template, and what pressing plate forms lower chamfer punch dodges hole.
The beneficial effects of the utility model are:
It is modified to existing common punch press mould, by gradually reducing punching grooving amount and heightening punching precision, thus is realized the high euphotic belt of sheet metal component essence punching by punching machine mold, thus makes common punch press meet the requirement of sheet metal component essence punching.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the utility model Lower die base structure schematic diagram;
Fig. 3 is the structural representation of the utility model stamped workpieces material strip.
In figure: 1, die shoe; 2, upper bolster; 3, main nitrogen spring; 4, the first piercing knife; 5, the second piercing knife; 6, upper chamfer punch; 7, the 3rd piercing knife; 8, through hole drift; 9, lower chamfer punch; 10, pressuring template; 11, the first punching; 12, the second punching; 13, the first through hole; 14, the 3rd punching; 15, the second through hole; 16, locating dowel; 17, block is protected; 18, die block; 19, guide post; 20, auxiliary nitrogen spring; 21, pressing plate; 22, embedded block; 23, the second pilot hole; 24, pilot hole; 25, cushion block; 26, slotted eye; 27, lower chamfer punch mounting blocks; 28, jacking block; 29, push rod; 30, spring; 31, capping; A, for the first time pre-punched hole; B, second time pre-punched hole; C, upper chamfering; D, smart punching; E, lower chamfering; F, through hole.
Detailed description of the invention:
Embodiment: see Fig. 1, shown in 2, a kind of smart punching die, comprise die shoe 1 and upper bolster 2, the both sides of upper bolster 2 are fixed with main nitrogen spring 3, the lower end of main nitrogen spring 3 is fixed on pressuring template 10, upper bolster 2 is fixed with successively the first piercing knife 4, second piercing knife 5, upper chamfer punch 6, 3rd piercing knife 7 and through hole drift 8, first piercing knife 4, second piercing knife 5, upper chamfer punch 6, the die shoe 1 of the 3rd piercing knife 7 and the positive downside of through hole drift 8 forms the first punching 11 successively, second punching 12, first through hole 13, 3rd punching 14 and the second through hole 15, die shoe 1 between 3rd punching 14 and the second through hole 15 is fixed with lower chamfer punch 9,
The pressuring template 10 at described 3rd piercing knife 7 place forms the first pilot hole 24, 3rd piercing knife 7 is plugged on cushion block 25, the lower end of cushion block 25 is plugged in the pilot hole 24 of pressuring template 10, upper end is fixed on the lower surface of die shoe 1, described cushion block 25 is fixed with auxiliary nitrogen spring 20, auxiliary nitrogen spring 20 lower end is fixed on die block 18, die block 18 is plugged in the pilot hole 24 of pressuring template 10, die block 18 is fixed with guide post 19, described upper bolster 2 forms the second pilot hole 23, the upper end of guide post 19 is plugged in the second pilot hole 23 of upper bolster 2 through cushion block 25.
Described upper chamfer punch 6, the head of through hole drift 8 and lower chamfer punch 9 all conically, the die shoe 1 at lower chamfer punch 9 place forms slotted eye 26, grafting in slotted eye 26 is also fixed with lower chamfer punch mounting blocks 27, lower chamfer punch mounting blocks 27 is fixed with lower chamfer punch 9, lower chamfer punch 9 is inserted with jacking block 28, the upper surface of die shoe 1 is exposed in jacking block 28 upper end, lower end is fixed with push rod 29, the lower end of push rod 29 is pressed against on spring 30 through lower chamfer punch mounting blocks 27, the lower end of spring 30 is pressed against in capping 31, capping 31 is fixed on the lower surface of die shoe 1.
The first described punching 11, second punching 12, first through hole 13, the 3rd punching 14 and the second through hole 15 are all molded on embedded block 22, and embedded block 22 grafting is also bolted on die shoe 1; The die shoe 1 at described 3rd punching 14 place is fixed with locating dowel 16, and the head of locating dowel 16 conically.
The lower surface of the pressuring template 10 on the downside of described first piercing knife 4, second piercing knife 5, upper chamfer punch 6 and through hole drift 8 is fixed with protection block 17; pressuring template 10 with protecting, block 17 forms the via hole of the first piercing knife 4, second piercing knife 5, upper chamfer punch 6 and through hole drift 8, and the diameter of described first piercing knife 4, second piercing knife 5 and the 3rd piercing knife 7 increases progressively successively.
The upside of described lower chamfer punch 9 is provided with pressing plate 21, and pressing plate 21 is fixed on the lower surface of pressuring template 10, and what pressing plate 21 forms lower chamfer punch 9 dodges hole.
Operation principle: the schematic diagram of utility model works step composition graphs 3 stamped workpieces material strip is set forth, its punch steps is followed successively by first time pre-punched hole a, second time pre-punched hole b, upper chamfering c, essence punching d, lower chamfering e and through hole f realizes the processing of smart punching on workpiece, make it have higher euphotic belt, and realization first time pre-punched hole a and second time pre-punched hole b is the first piercing knife 4 and the second piercing knife 5 on mould, realize the roughing of workpiece punching, smart punching is realized again by the 3rd piercing knife 7, carry out drawing euphotic belt at through hole drift 8 while making the punching of workpiece essence have better euphotic belt simultaneously, thus make the punching of workpiece essence have good euphotic belt.