CN201625695U

CN201625695U - Phi 351 steel pipe bending die

Info

Publication number: CN201625695U
Application number: CN 200920299490
Authority: CN
Inventors: 杨俊斌
Original assignee: Anhui Fuhuang Steel Structure Co Ltd
Current assignee: Anhui Fuhuang Steel Structure Co Ltd
Priority date: 2009-12-22
Filing date: 2009-12-22
Publication date: 2010-11-10
Anticipated expiration: 2019-12-22

Abstract

The utility model discloses a phi 351 steel pipe bending die. The bending die is characterized in that a pair of lower dies is arranged along the axial direction of a steel pipe, and an upper die is arranged between the lower dies; the die cavities of the lower dies and the upper die are arc-shaped grooves with diameter not less than that of the steel pipe; and the lower dies are fixedly arranged on the lower working platform of an oil press, and the upper die is fixedly arranged on the walking beam of the oil press through bolts and can conduct vertical movement with the walking beam of the oil press. The phi 351 steel pipe bending die is simple and feasible, and has low investment cost and good bending effect. The bending die can be used together with the oil press for pressing a round corner of the steel pipe, so as to meet the production requirement with low equipment investment.

Description

A kind of φ 351 steel pipe bending dies

Technical field

The utility model relates to device, especially the steel tube bending mould of φ 351 pipes that is used to suppress steel pipe circle gesture.Background technology

In the steel structure is produced, the steel pipe of a large amount of different sizes need bend, the angle pipe equipment that uses exists the problem that investment is big, the customization cycle is long at present, for the steel tube bending of a large amount of different sizes, the configuration investment cost of the angle pipe equipment of corresponding different size is too high, the customization time is oversize so that incur loss through delay the duration.

The utility model content

The utility model is for avoiding above-mentioned existing in prior technology weak point, provide a kind of simple, investment cost is low, bend effective φ 351 steel pipe bending dies, itself and the supporting use of hydraulic press are used to suppress steel pipe circle gesture, in the hope of satisfying production requirement with the small device investment.

The utility model technical solution problem adopts following technical scheme:

The design feature of the utility model φ 351 steel pipe bending dies be along steel shaft to a pair of counterdie is set, on the position between a pair of counterdie, a patrix is set; The die cavity of described counterdie and patrix is set to the circular groove that diameter is not less than diameter of steel tube; Described counterdie is fixedly installed on the hydraulic press lower table face, and described patrix is arranged on the hydraulic press walking beam and can follows the hydraulic press walking beam by bolting and moves up and down.

Compared with the prior art, the utility model beneficial effect is embodied in:

1, the steel tube bending power-equipment in the utility model adopts 1600 tons of hydraulic presses, because 1600 tons of hydraulic presses are common apparatus in each steel structure manufacturer, therefore, the steel tube bending of different size is as long as make special-purpose upper die and lower die by the sectional dimension of steel pipe and can realize, and is simple, investment cost is low, it is effective to bend.

2, the utility model can greatly improve bend pipe speed, speed up the work, and its bending quality is good, easy to operate, can save the bend pipe cost in a large number.

Description of drawings

Fig. 1 is the utility model patrix structural representation.

Fig. 2 is the utility model counterdie structural representation.

Fig. 3 is that the utility model patrix and counterdie cooperate hydraulic press to constitute the curved device structure schematic diagram of steel pipe system.

Number in the figure: 1 counterdie, 2 patrixes, 3 hydraulic press lower table faces, 4 hydraulic press walking beams, 5 steel pipes.

Below pass through the specific embodiment, and the utility model is described in further detail in conjunction with the accompanying drawings.

The specific embodiment

Bend at φ 351 steel pipes in the present embodiment.

Referring to Fig. 1, Fig. 2, to a pair of counterdie 1 is set,, a patrix 2 is set on the position between a pair of counterdie 1 along steel shaft; The die cavity of counterdie 1 and patrix 2 is set to the circular groove that diameter is not less than the diameter of the steel pipe 5 that need bend;

Referring to Fig. 3, select 1600 tons of hydraulic presses for use, counterdie 1 is fixedly installed on the wide hydraulic press lower table face 3 of 1500mm, grade size of opening of a pair of counterdie 1 determines suitably that according to the lower platform width of hydraulic press lower table face 3 patrix 2 is arranged on the hydraulic press walking beam 4 and can follows hydraulic press walking beam 4 by bolting and moves up and down.

In concrete the enforcement, counterdie 1 and patrix 2 are to be made of multi-disc steel plate polyphone, can adopt thickness is the steel plate of 40mm, patrix 2 in the present embodiment is to constitute with three steel plate series combination, two counterdies 1 are respectively to be formed by two steel plate series combination, and this form is simple for production and can guarantee the intensity of mould.

The distance that moves up and down of patrix 2 can be controlled with the stroke of hydraulic press walking beam 4, realizes being bent the radius of curvature size of steel pipe by the impulse stroke amount of control patrix.

Equipment be embodied as the bent tube technique of colding pressing:

At first finish counterdie and patrix on hydraulic press clamping;

Consider that steel pipe 5 two ends after bending will have one section to be flat segments, for this reason, first one section additional steel pipe of assembly unit respectively at the two ends of the steel pipe 5 that will bend, treat steel pipe 5 compression mouldings after, cut the additional steel pipe of the flat segments at two ends again, thus the smooth transition of the end of the steel pipe 5 that assurance is bent.

It is curved that the press-bending of steel pipe 5 adopts an end progressively to feed to the other end, and each amount of bending of feeding is about 500mm, so that the smooth surface transition of steel pipe 5 does not produce bigger gauffer.

The control of volume under pressure can be adopted mark post control method, at the mark post of the upright band scale of the side elevation of steel pipe 5, volume under pressure by with mark post on graduation mark compare and control.

Claims

1. φ 351 steel pipe bending dies is characterized in that along steel shaft on the position that is positioned between a pair of counterdie (1), a patrix (2) being set to a pair of counterdie (1) is set; The die cavity of described counterdie (1) and patrix (2) is set to the circular groove that diameter is not less than the diameter of steel pipe (5); Described counterdie (1) is fixedly installed on the hydraulic press lower table face (3), and described patrix (2) is arranged on the hydraulic press walking beam (4) and can follows hydraulic press walking beam (4) by bolting and moves up and down.

2. φ 351 steel pipe bending dies according to claim 1 is characterized in that described counterdie (1) and patrix (2) are to be made of multi-disc steel plate polyphone.