CN202192165U

CN202192165U - Structure for stretching module of ladder box-shaped piece with flange

Info

Publication number: CN202192165U
Application number: CN201120305289XU
Authority: CN
Inventors: 刘玲
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-08-16
Filing date: 2011-08-16
Publication date: 2012-04-18
Anticipated expiration: 2021-08-16

Abstract

The utility model relates to a mechanical stamping technology, in particular to a structure for a stretching mould of a ladder box-shaped piece with a flange, which can prevent the ladder box-shaped piece with the flange from being wrinkled at an upper rounded corner and sliding at a lower rounded corner when the ladder box-shaped piece with the flange is secondarily stretched. The structure is mainly realized in that a floating ejector block (6) capable of floating up and down is designed in a position where a formed part being shaped at the first stretching corresponds to the position of a male die (10) in a secondary stretching mould, so that the integrity of the shape of the part which is formed during the first stretching is guaranteed during the second stretching, and the top pressure is realized by the floating ejector block (6) before the secondary stretching, so that the tangential pressure stress, the radial tensile stress and the shear stress are tended to be balanced, and the part is guaranteed not to deform after the secondary stretching; and a part with asymmetrical edges can be machined by blending a die plate insert (7) and an edge pressing ring insert (8). The structure has the beneficial effects of being reasonable in design, novel in structure, and simple in technology.

Description

A kind of flanged ladder box part drawing die structure

Technical field

The utility model relates to a kind of technology of mechanical stamping, is specially a kind of flanged ladder box part drawing die structure.

Background technology

Diel is a kind of special process equipment that in cold stamping processing, material (metal or nonmetal) is processed into part (or semi-finished product), is called cold punching die (being commonly called as cold-punching mould).Punching press is at room temperature, utilizes the mould be installed on the forcing press that material is exerted pressure, it is produced separates or plastic deformation, thereby obtain a kind of pressure processing method of required part, and drawing die mainly be requirement its produce standard compliant distortion.In information-intensive society and the continuous developing progress of economic globalization, the die industry development trend mainly be mould product towards more large-scale, more accurate, more complicated and more economical fast, efficient, long-life and the development of multi-functional aspect.But still there are a lot of problems in the case lower body of mould at present: its stepped box part of one side, drawing process is poor.At the perpendicular steps place, only use round-corner transition, the flowability of material is poor, resistance big, be difficult for shaping, when this just requires the blank flat material to stretch, is difficult to one-off drawing and is shaped.Succeeding stretch just can well solve the above problems; But can cause the round-corner transition place of wide flange and strait flange during succeeding stretch; Circumferential compressive force and radially drawing answers mountain and shear stress unbalanced; Cause this place's punch-nose angle drawing crack or wrinkling serious phenomenon easily, cause workpiece fillet place to produce sliding phenomenon, cause the force-bearing situation of this part, technological design complicated.

Summary of the invention

The purpose of the utility model be to provide a kind of can solve flanged ladder box part in succeeding stretch, can avoid workpiece on top the fillet place wrinkling, flanged ladder box part drawing die structure of fillet place sliding phenomenon in the bottom.

In order to realize said purpose, the utility model specifically adopts following technical scheme:

A kind of flanged ladder box part drawing die structure comprises cope match-plate pattern 1, angled slide block rubber 2, presses that shape pad rubber 3, die press that shape pad 4, die socket 5, unsteady angled slide block 6, die plate insert 7, blank holder insert 8, flanging panel seat 9, punch 10, push rod 11, lower bolster 12; It is characterized in that: cope match-plate pattern 1 bottom center is provided with die and presses shape pad 4, presses shape pad 4 outsides to be provided with the die socket 5 that is connected cope match-plate pattern 1 near die; Press the punch 10 of shape pad 4 corresponding matching settings to be connected on the lower bolster 12 with die; Be fixed on the push rod 11 with the flanging panel seat 9 of die socket 5 corresponding settings; Push rod 11 passes lower bolster 12 and is slidingly connected with lower bolster 12; Punch 10 is provided with the unsteady angled slide block 6 that can fluctuate, and corresponding angled slide block 6 correspondences of floating are provided with angled slide block rubber 2 on die pressure shape pad 4; The inward flange of die socket 5 lower ends is arranged with die plate insert 7, and the position of flanging panel seat 9 corresponding die plate inserts 7 is provided with blank holder and inserts 8.

Further, described cope match-plate pattern 1 is provided with pressure shape pad rubber 3 with the inside that die presses shape pad 4 to be connected.

Further, described cope match-plate pattern 1 is pressed shape pad 4 with die, and cope match-plate pattern 1 is connected through bolt with lower bolster 12 with die socket 5 and punch 10 respectively.

A kind of flanged ladder box part drawing die structure of the utility model; Mainly be through the in type position after the one-off drawing moulding; The unsteady angled slide block 6 that the position design one of the punch 10 in the corresponding succeeding stretch mould can fluctuate; Established parts modeling is complete when when succeeding stretch, not only having guaranteed one-off drawing; And before the succeeding stretch earlier by unsteady angled slide block 6 realization roof pressures, make circumferential compressive force and radially draw and answer mountain and shear stress equalize, guaranteed behind the part succeeding stretch indeformable; Can also realize the part processing at asymmetric edge through the insert allotment of 8 setting and different size of die plate insert 7 and blank holder; Its beneficial effect is; Reasonable in design, novel structure, technology is simple; The force-bearing situation of processing work and the flow direction of material have been improved; Alleviated the drawing crack of the punch-nose angle that wide flange box part causes and wrinkling, it is wrinkling well to have solved the fillet place that flanged ladder box part can avoid workpiece when one-off drawing, to form in succeeding stretch, and the fillet place that when succeeding stretch, forms is easy to generate the problem of slippage.

Description of drawings

Accompanying drawing is the utility model structural representation

Among the figure: cope match-plate pattern 1, angled slide block rubber 2, press that shape pad rubber 3, die press that shape pad 4, die socket 5, unsteady angled slide block 6, die plate insert 7, blank holder insert 8, flanging panel seat 9, punch 10, push rod 11, lower bolster 12

The specific embodiment

Instance 1

A kind of flanged ladder box part drawing die structure; As shown in the figure, it comprises cope match-plate pattern 1 and counterdie 12, and the die that is connected on the cope match-plate pattern 1 is pressed shape pad 4 and die socket 5; Be connected punch 10 and push rod 11 on the lower bolster 12; Be fixedly connected on the flanging panel seat 9 on the push rod 11, fluctuating is arranged on the angled slide block rubber 2 that unsteady angled slide block 6 and the unsteady angled slide block 6 on the punch 10 is provided with; Be arranged on cope match-plate pattern 1 and die press between the shape pad 4 pressure shape pad rubber 3 and respectively correspondence be arranged on die socket 5 and flanging panel seat 9 upper cavity dies insert 7 and blank holder insert 8.In use; Insert 8 according to the die plate insert 7 of the thickness of flange of the box part of one-step forming adjustment just behind the one-off drawing with blank holder earlier; Indeformable requirement when making the edge of its different-thickness all can satisfy succeeding stretch; Box part with first one-step forming is placed on the punch 10 then, and the corresponding angled slide block 6 that floats of the box-like that forms during one-off drawing is placed; Carry out the succeeding stretch operation then, the box-like that one-off drawing forms in the time of operation receives the roof pressure effect of the angled slide block 6 that floats earlier, accomplishes succeeding stretch with part then; Form the complete of moulding when on the one hand guaranteeing one-off drawing,, make originally unbalanced circumferential compressive force answer mountain and shear stress to obtain counteracting with radially drawing on the one hand owing to receive the roof pressure effect in advance; Make part stress balanced; Improved the flowability of material, avoided punch and part injury, effect is obvious.

Claims

1. flanged ladder box part drawing die structure comprises cope match-plate pattern (1), angled slide block rubber (2), presses shape pad rubber (3), die is pressed shape pad (4), die socket (5), unsteady angled slide block (6), die plate insert (7), blank holder are inserted (8), flanging panel seat (9), punch (10), push rod (11), lower bolster (12); It is characterized in that: cope match-plate pattern (1) bottom center is provided with die and presses shape pad (4), presses shape pad (4) outside to be provided with the die socket (5) that is connected cope match-plate pattern (1) near die; The punch (10) of pressing shape pad (4) corresponding matching to be provided with die is connected on the lower bolster (12); Be fixed on the push rod (11) with the flanging panel seat (9) of the corresponding setting of die socket (5); Push rod (11) passes lower bolster (12) and is slidingly connected with lower bolster (12); Punch (10) is provided with the unsteady angled slide block (6) that can fluctuate, and presses shape pad (4) to go up corresponding angled slide block (6) correspondence of floating at die and is provided with angled slide block rubber (2); The inward flange of die socket (5) lower end is arranged with die plate insert (7), and the position of the corresponding die plate insert of flanging panel seat (9) (7) is provided with blank holder insert (8).

2. a kind of flanged ladder box part drawing die structure as claimed in claim 1 is characterized in that, described cope match-plate pattern (1) is provided with the inside that die presses shape pad (4) to be connected and presses shape pad rubber (3).

3. a kind of flanged ladder box part drawing die structure as claimed in claim 1; It is characterized in that; Described cope match-plate pattern (1) and die are pressed shape pad (4), and cope match-plate pattern (1) is connected through bolt with lower bolster (12) with die socket (5) and punch (10) respectively.