CN213728920U

CN213728920U - Composite forming die

Info

Publication number: CN213728920U
Application number: CN202022660166.XU
Authority: CN
Inventors: 闪星辰; 喻伟
Original assignee: Xiangyang Sunrise Machinery Co ltd
Current assignee: Xiangyang Sunrise Machinery Co ltd
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-07-20
Anticipated expiration: 2030-11-17

Abstract

A composite forming die is used for composite forming of sheet metal parts with opposite flanging directions. The device comprises an upper die base, a wedge slide block, a lower flanging male die insert, an upper flanging female die insert, a pressing piece device, a nitrogen spring I, a cover plate and a lower flanging male die insert, wherein the wedge slide block is arranged on the upper die base; the limiting device is arranged on two sides of the lower die seat, the wedge driving block and the upper flanging male die insert are fixed on the lower die seat, the upper flanging male die insert is positioned on the outer side of the upper flanging female die insert, the lower flanging female die insert is locked on the ejector, the nitrogen spring II is arranged between the lower die seat and the ejector and used as a pressure source, the limiting bolt is used for safety limiting of the ejector, the plate is placed on the ejector, and the plate is positioned through the positioning pin. The utility model discloses make the slide wedge slider before getting into the die, accomplish earlier to the panel material turn-ups back, accomplish the turn-ups under the sheet material again.

Description

Composite forming die

Technical Field

The utility model relates to a mechanical manufacturing stamping forming technical field specifically is a compound moulded die suitable for comparatively complicated, low strength sheet metal material of profile.

Background

At present, the following process schemes are generally adopted for the stamping forming of low-strength thin metal plates with complex profiles:

(1) blanking, forming, flanging twice, trimming and punching;

(2) blanking, drawing, flanging, trimming and punching.

The production process has the following defects respectively:

scheme (1): the die has simple structure, but each process needs one die and five dies, so the efficiency is low and the cost is high; scheme (2): compared with the scheme (1), the structure is slightly complex, four molds are needed, the efficiency is improved, but the drawing process is added, so that the material utilization rate is greatly reduced, and the cost is higher.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a composite forming die to realize one-step forming of low-strength thin metal plates and parts with complex profiles.

In order to realize the purpose, the utility model discloses a baffle I that upper die base motion provided the direction is installed in the both sides of die holder, the slide wedge is adorned in the centre of upper die base, lower turn-ups terrace die insert is fixed on the interior circular cone face of slide wedge slider, upper turn-ups die insert passes through the bolt locking on the casting die ware, be located between two lower turn-ups terrace die inserts, casting die ware and upper die base sliding fit, nitrogen spring I is fixed on the upper die base, provide the power of downward motion for the casting die ware, the apron of installation on the upper die base is spacing to the downward motion of casting die ware, nitrogen spring I is installed between upper die base and casting die ware through the bolt; the limiting devices for limiting the downward movement of the upper die base are arranged on two sides of the lower die base, the wedge driving blocks are fixed in the middle of the lower die base through bolts and positioning pins, the wedge driving blocks are in wedge fit with the wedge sliding blocks, the two upper flanging male die inserts are fixed on the lower die base through bolts and positioning pins and are positioned on the outer sides of the upper flanging female die inserts, the lower flanging female die inserts are locked on the ejector, the upper parts of the lower flanging female die inserts are in wedge fit with the lower flanging male die inserts, a guide plate II is adopted for guiding between the ejector and the lower die base, the two nitrogen springs II are symmetrically arranged between the lower die base and the ejector through bolts to serve as pressure sources, the limiting bolts arranged on the lower die base serve as the safety limiting of the ejector, the plate is placed on the ejector, and the plate passes through the positioning pins arranged on the lower flanging female die inserts, and positioning through positioning holes in the plate.

The wedge slide block is sleeved outside the pressing piece device; the inner conical surface of the tapered wedge slide block at the center of the tapered wedge slide block is matched with the outer conical surface of the lower flanging male die insert, the outer conical surfaces of the tapered wedge slide blocks at two sides of the tapered wedge slide block are matched with the inner conical surface of the tapered wedge drive block, and the bottom of the inner conical surface of the tapered wedge slide block is provided with a boss for positioning the lower flanging male die insert; the outer conical surface of the lower flanging female die insert at the upper part of the lower flanging female die insert is embedded into the inner conical surface of the lower flanging male die insert in the lower flanging male die insert.

The utility model calculates the force required by the molded surface of the stamping part through computer CAE simulation analysis, calculates the proper stroke, and selects the proper elastic element to ensure that the force of the pressing part device is greater than the force of the ejector; the upper die base drives the pressing piece device and the upper flanging female die insert, the wedge slide block and the lower flanging male die which are arranged on the pressing piece device to move downwards together, the pressing piece device presses the plate and then presses the ejector to move downwards together, the upper flanging female die insert and the upper flanging male die insert start to perform upper flanging on the plate under the interaction of the upper flanging female die insert and the upper flanging male die insert, when the ejector moves downwards to a limit position, the wedge slide block and the lower flanging male die insert start to move downwards, and the plate is turned downwards under the action of the lower flanging male die insert and the lower flanging female die insert, so that the upper flanging and the lower flanging of the plate are completed. The utility model discloses only need a pair mould can realize the one-time shaping of complicated part, mainly used sheet metal spare turn-ups opposite direction's composite forming has improved production efficiency and material utilization greatly to make manufacturing cost reduce by a wide margin.

Drawings

FIG. 1 is a schematic diagram of the product.

Fig. 2 is a schematic view of the present invention.

FIG. 3 is a schematic sectional view of B-B of FIG. 2.

In the figure: 1. a lower die holder; 2. a first guide plate; 3. an upper die holder; 4. a wedge drive block; 5. a slide wedge block; 6. a lower flanging male die insert; 7. an upper flanging female die insert; 8. a lower flanging female die insert; 9. a pressing piece device; 10. a first nitrogen spring; 11. a plate material; 12. a nitrogen spring II; 13. an ejector; 14. a cover plate; 15. an upper flanging male die insert; 16. positioning pins; 17. a stopper; 18. a second guide plate; 19. a limit bolt; 20. the inner conical surface of the wedge slide block; 21. the outer circular conical surface of the lower flanging male die insert; 22. the outer circular conical surface of the wedge slide block; 23. the inner conical surface of the wedge driving block; 24. upward flanging; 25. downward flanging; 26. the inner conical surface of the lower flanging male die insert; 27. a boss; 28. and the outer conical surface of the lower flanging female die insert.

Detailed Description

As shown in fig. 1, the product has a simplified structure, low strength, thin thickness, and complex profile, and includes an upper flange 24 and a lower flange 25 in opposite directions.

As shown in fig. 2 and 3, the guide plates 2 for guiding the movement of the upper die base 3 of the present invention are installed at two sides of the lower die base 1, the slide wedge block 5 is installed in the middle of the upper die base 3, the lower flanging male die insert 6 is fixed on the inner conical surface 20 of the slide wedge block 5, the upper flanging female die insert 7 is locked on the presser 9 through a bolt and is located between the two lower flanging male die inserts 6, the presser 9 is in sliding fit with the upper die base 3, the three first nitrogen springs 10 are uniformly fixed on the upper die base 3 to provide a downward movement force for the presser 9, the cover plate 14 installed on the upper die base 3 limits the downward movement of the presser 9, and the first nitrogen springs 10 are installed between the upper die base 3 and the presser 9 through bolts; the stopper 17 for limiting the downward movement of the upper die base 3 is arranged at two sides of the lower die base 1, the wedge driving block 4 is fixed in the middle of the lower die base 1 through a bolt and a positioning pin, the wedge driving block 4 is in wedge fit with the wedge slide block 5, the two upper flanging male die inserts 15 are fixed on the lower die base 1 through a bolt and a positioning pin and are positioned at the outer side of the upper flanging female die insert 7, the lower flanging female die insert 8 is locked on the ejector 13, the upper part of the lower flanging female die insert 8 is in wedge fit with the lower flanging male die insert 6, the ejector 13 is guided with the lower die base 1 through a guide plate II 18, two nitrogen springs II 12 are symmetrically arranged between the lower die base 1 and the ejector 13 through bolts to serve as a pressure source, the limiting bolt 19 arranged on the lower die base 1 serves as the safety limit of the ejector 13, the plate 11 is arranged on the ejector 13, and the plate 11 passes through the positioning pin 16 arranged on the lower flanging female die insert 8, And positioning is carried out through positioning holes in the plate 11.

The wedge slide block 5 is sleeved outside the casting die device 9; an inner conical surface 20 of the wedge slide block at the center of the wedge slide block 5 is matched with an outer conical surface 21 of the lower flanging male die insert 6, outer conical surfaces 22 of the wedge slide blocks at two sides of the wedge slide block 5 are matched with an inner conical surface 23 of the wedge drive block 4, and the bottom of the inner conical surface 20 of the wedge slide block is provided with a boss 27 for positioning the lower flanging male die insert 6; the outer conical surface 28 of the lower flanging female die insert at the upper part of the lower flanging female die insert 8 is embedded into the inner conical surface 26 of the lower flanging male die insert in the lower flanging male die insert 6.

When a product is formed, the upper die base 3 drives the pressing piece device 9 and the upper flanging die insert 7, the wedge slide block 5 and the lower flanging die insert 6 which are arranged on the pressing piece device 9 to move downwards together, the pressing piece device 9 presses the plate 11 and then presses the ejector 13 to move downwards together, the upper flanging die insert 7 and the upper flanging die insert 15 begin to perform upper flanging 24 on the plate 11 under the interaction of the upper flanging die insert 7 and the upper flanging die insert, when the ejector 13 moves downwards to a limit position, the wedge slide block 5 and the lower flanging die insert 6 begin to move downwards to perform lower flanging 25 on the plate 11 under the action of the lower flanging die insert 6 and the lower flanging die insert 8, and the upper flanging and the lower flanging of the plate 11 are completed.

The utility model discloses a computer CAE simulation analysis calculates the power that 11 profiles of punching press play sheet material need earlier, calculates suitable stroke to select suitable elastic element, make casting die ware 9's power be greater than ejector 13's power, make slide wedge slider 5 before getting into the die, accomplish the last turn-ups 24 of sheet material 11 earlier, after upper die base 3 continues down, make the lower turn-ups of slide wedge slider 5 motion completion sheet material 11 again, in order to realize the one-time shaping of complicated part.

Claims

1. A compound moulded die which characterized in that: the guide plate I (2) for guiding the movement of the upper die holder (3) is arranged on two sides of the lower die holder (1), the wedge slide block (5) is arranged in the middle of the upper die holder (3), the lower flanging male die insert (6) is fixed on an inner conical surface (20) of the wedge slide block (5), the upper flanging female die insert (7) is locked on the presser (9) through bolts and is positioned between the two lower flanging male die inserts (6), the presser (9) is in sliding fit with the upper die holder (3), a nitrogen spring I (10) for providing downward movement force for the presser (9) is fixed on the upper die holder (3), a cover plate (14) arranged on the upper die holder (3) limits the downward movement of the presser (9), and the nitrogen spring I (10) is arranged between the upper die holder (3) and the presser (9) through bolts; the limiting device (17) for limiting the downward movement of the upper die holder (3) is arranged on two sides of the lower die holder (1), the wedge driving block (4) is fixed in the middle of the lower die holder (1) through a bolt and a positioning pin, the wedge driving block (4) is in wedge fit with the wedge sliding block (5), the two upper flanging male die inserts (15) are fixed on the lower die holder (1) through a bolt and a positioning pin and are positioned on the outer side of the upper flanging female die insert (7), the lower flanging female die insert (8) is locked on the ejector (13), the upper part of the lower flanging female die (8) is in wedge fit with the lower flanging male die insert (6), the ejector (13) and the lower die holder (1) are guided by a guide plate II (18), the two nitrogen springs II (12) are symmetrically arranged between the lower die holder (1) and the ejector (13) through a bolt to serve as a pressure source, and the limiting bolt (19) arranged on the lower die holder (1) serves as a safety limiting device (13), the plate (11) is placed on the ejector (13), and the plate (11) is positioned through a positioning hole in the plate (11) through a positioning pin (16) arranged on the lower flanging female die insert (8).

2. The composite molding die as defined in claim 1, wherein: the wedge slide block (5) is sleeved outside the pressing piece device (9); an inner circular conical surface (20) of the wedge slide block at the center of the wedge slide block (5) is matched with an outer circular conical surface (21) of the lower flanging punch insert (6), outer circular conical surfaces (22) of the wedge slide blocks at two sides of the wedge slide block (5) are matched with an inner circular conical surface (23) of the wedge drive block (4), and the bottom of the inner circular conical surface (20) of the wedge slide block is provided with a boss (27) for positioning the lower flanging punch insert (6); the outer conical surface (25) of the lower flanging female die insert at the upper part of the lower flanging female die insert (8) is embedded into the inner conical surface (26) of the lower flanging male die insert in the lower flanging male die insert (6).