CN202097295U

CN202097295U - Rolling die

Info

Publication number: CN202097295U
Application number: CN2011201439003U
Authority: CN
Inventors: 蒋云泉
Original assignee: SUZHOU TIANYE MECHANICAL INDUSTRY Co Ltd
Current assignee: SUZHOU TIANYE MECHANICAL INDUSTRY Co Ltd
Priority date: 2011-05-09
Filing date: 2011-05-09
Publication date: 2012-01-04
Anticipated expiration: 2021-05-09

Abstract

The utility model discloses a rolling die, which comprises an upper die, a lower die and a mandrel. Two mutually symmetrical clearances are arranged on a plane side of the mandrel, the cross section of the mandrel is in an inverted T shape with an arc bottom, the lower die is provided with a groove the same as an arc side of the mandrel in shape, the upper die is provided with a slot matched with the lower die, through holes the same as the cross section of the mandrel in shape and size are arranged on a body portion of the upper die on two sides of the slot, and the mutually symmetrical through holes are on a same axial plane. The rolling die has the advantages of simple structure, convenience and quickness in forming, low cost, high operating efficiency and the like, and is high in precision of rolled products, and suitable for mass and quick rolling.

Description

A kind of coiling mould

Technical field

The utility model relates to a kind of diel, particularly a kind of coiling mould.

Background technology

General, volume circle moulding process comprises three operations: rake angle, bending, volume circle.For certain products, volume circle product 11 as shown in Figure 1 is when the moulding of volume circle; At first adopt common sharp knife 22 with the two ends of workpiece on request bending go out certain-length and angle and symmetrical bending edges; Form the workpiece 21 that pre-bends shown in Figure 2, use common bending cutter 31 workpiece 21 bending and moldings that will pre-bend then, as shown in Figure 3; The bending edges of workpiece 21 of when bending and molding, can occurring pre-bending bumps against the situation of cutter, causes obtaining shaped article; Adopt progressive die moulding, the cost of the progressive die is higher and fabrication cycle is long, and working (machining) efficiency is lower, can't satisfy the demand of the urgent enquiry of client.Therefore,, and cut down finished cost, become the problem that needs solution how fast and efficiently with the moulding of workpiece volume circle.

The utility model content

For solving the problems of the technologies described above, the utility model provides a kind of coiling mould, and this mould can make things convenient for, accurately with the punch forming of preformed workpiece, and mould structure is simple, practical, and cost is lower.

For achieving the above object, the technical scheme of the utility model is following:

A kind of coiling mould is characterized in that, comprises upper die and lower die and plug; The planar side of said plug offer twice symmetrical keep away the position, the cross section of said plug is the bottom and is the convex of circular arc; Said counterdie offers and the consistent arcuate furrow of said plug cambered surface side shape; Said patrix offers the groove position supporting with said counterdie, and the main part of the said patrix of both sides, said groove position offers and the equal consistent through hole of the shape of cross section of said plug and size, and said through hole is symmetrical and in same on the axial plane.

Preferably, said patrix offers the draw-in groove that is used to connect the bender drift.

Preferably, said counterdie comprises boss and base, and the height of said boss is greater than the degree of depth of said groove position, and the cross section of said counterdie is convex.

Preferably, the bottom of said base offers and is used for said counterdie is fixed on the holddown groove on the bender pedestal.

Through technique scheme, a kind of coiling mould that the utility model provides is made up of upper die and lower die and plug.During the moulding of volume circle; The workpiece that will pre-bend is placed on the counterdie, and half of the workpiece that pre-bends is positioned at the arcuate furrow top of counterdie, and plug is pierced in the through hole with its shape and patrix of the same size; Start bender then; The downward punching press of patrix drives the downward punching press of plug, and plug punching press preformed workpiece makes it crooked and gets in the arcuate furrow of counterdie, forms the arc that target product needs; After half-formed, bender drives the patrix die sinking, moves the arcuate furrow of second half aligning counterdie of half-formed workpiece then, repeats above-mentioned punch steps with half-formed workpiece punch forming.Owing to offer on the plug and keep away the position, this keeps away preformed workpiece both sides are just in time avoided in the position when the workpiece punch forming a bending, convenient formation, accurately, and mould simple in structure, working (machining) efficiency is high and cost is lower.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below.

Fig. 1 is a kind of sketch map of rolling up round product;

Fig. 2 is the schematic side view of workpiece of pre-bending;

Fig. 3 is the sketch map when rolling up the circle formed product in the prior art;

Fig. 4 is the patrix of the disclosed a kind of coiling mould of the utility model embodiment and the front elevational schematic of plug;

Fig. 5 is the front elevational schematic of the counterdie of the disclosed a kind of coiling mould of the utility model embodiment;

Fig. 6 is the schematic side view of the counterdie of the disclosed a kind of coiling mould of the utility model embodiment;

Fig. 7 is the schematic side view of the plug of the disclosed a kind of coiling mould of the utility model embodiment;

Fig. 8 is the structural representation of the disclosed a kind of coiling mould of the utility model embodiment.

The specific embodiment

To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment will be carried out clear, intactly description.

The utility model provides a kind of coiling mould, and this mould has simple in structure, practical characteristics, and can make things convenient for, accurately with the workpiece punch forming, shaping efficiency height and processing cost are low.

According to Fig. 4～8, the disclosed coiling mould of the utility model comprises patrix 41, counterdie and plug 42.The cross section of plug 42 be the bottom be the convex of circular arc, the planar side of plug 42 offer twice symmetrical keep away 71; Patrix 41 offers the groove position 43 supporting with counterdie, and the body section of the patrix 41 of 43 both sides, groove position all offers the through hole 81 of perforation, and the size of through hole 81 and shape are consistent with plug 42, and two side through hole 81 are symmetrically and in same on the axial plane; Counterdie comprises boss 51 and base 52; The upper end of boss 51 offers arcuate furrow 53; The size of arcuate furrow 53 and shape are consistent with the cambered surface side of plug 42; The cross section of counterdie is convex, and the height of its boss 51 is greater than the degree of depth of the groove position 43 of patrix 41, and base 52 bottoms of counterdie offer and are used for counterdie is fixed on the holddown groove 54 on the bender pedestal; Side at the high spot of patrix 41 offers draw-in groove 82, and this draw-in groove 82 is used for patrix 41 is connected to bender.

With reference to figure 2,, form the illustrated workpiece 21 that pre-bends earlier with the two ends bending on request of sharp knife 22 with workpiece; During punch forming; Plug 42 is pierced in the through hole 81 that patrix 41 offers; Form structure shown in Figure 4; Patrix 41 is fixed on the drift of bender through the draw-in groove of offering on it 82 again, then counterdie is fixed on the pedestal of bender through the holddown groove of offering on it 54, the arcuate furrow 53 of counterdie is corresponding each other with the position of plug 42; Half of the above-mentioned workpiece 21 that pre-bends aimed at the arcuate furrow 53 of counterdie, starts bender, the downward punching press of drift and drive patrix 41 downward punching presses; The workpiece 21 thereby 42 punching presses of drive plug pre-bend; The workpiece 21 that pre-bends is stamped into semi-finished product under the acting in conjunction power of plug 42 and counterdie, die sinking then moves to and aim at arcuate furrow 53 with half-finished second half; Repeat above-mentioned punch steps; Finally obtain the volume circle product 11 of moulding shown in Figure 1, last only the need fits together moulding volume circle product 11 with other part, can obtain target product.For this utility model and since offer on the plug 42 the twice position each other corresponding keep away position 71, so during punch forming, the bending of the workpiece 21 that pre-bends correct be in plug 42 keep away the place, position, workpiece disturbs mould and influences moulding when having avoided moulding.

Compare existing common bending cutter 31 forming techniques; The disclosed coiling mould of the utility model is simple in structure; The unique shape-designing of plug 42 parts such as grade not only can be easily and efficiently with workpiece punching press rolling circle product, and compares the progressive die and have the low and high advantage of work efficiency of processing cost.

To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the utility model or scope in other embodiments among this paper.Therefore, the utility model will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.

Claims

1. a coiling mould is characterized in that, comprises upper die and lower die and plug; The planar side of said plug offer twice symmetrical keep away the position, the cross section of said plug is the bottom and is the convex of circular arc; Said counterdie offers and the consistent arcuate furrow of said plug cambered surface side shape; Said patrix offers the groove position supporting with said counterdie, and the main part of the said patrix of both sides, said groove position offers and the equal consistent through hole of the shape of cross section of said plug and size, and said through hole is symmetrical and in same on the axial plane.

2. coiling mould according to claim 1 is characterized in that said patrix offers the draw-in groove that is used to connect the bender drift.

3. coiling mould according to claim 1 is characterized in that said counterdie comprises boss and base, and the height of said boss is greater than the degree of depth of said groove position, and the cross section of said counterdie is convex.

4. coiling mould according to claim 3 is characterized in that, the bottom of said base offers and is used for said counterdie is fixed on the holddown groove on the bender pedestal.