CN1336854A

CN1336854A - Procedure for bending a profiled metal element while limiting deformation of its cross-sectional shape

Info

Publication number: CN1336854A
Application number: CN 00802861
Authority: CN
Inventors: P·帕索尼
Original assignee: EMARC SpA
Current assignee: E M A R C 股份有限公司; EMARC SpA
Priority date: 1999-01-18
Filing date: 2000-01-13
Publication date: 2002-02-20
Also published as: CZ20012619A3; MXPA01007258A; JP2002534270A; EP1154869A1; ITTO990034A1; YU48601A; CA2359341A1; PL348894A1; RU2001123238A; BR0008894A; SK10162001A3; WO2000041825A1; AU2108400A; IT1306993B1

Abstract

The bending procedure calls for a restraining force to be exerted on the profiled metal element (10) in a direction substantially orthogonal to that of the forces causing the bend, at the same time as the said forces are being exerted, in order to limit any deformation of the cross-sectional shape of the element (10). The associated apparatus includes means for exerting on the elemnt (10) a restraining force in a direction substantially orthogonal to that of the forces causing the bending.

Description

A kind of in order to bending one shape element and limit the method for its transverse shape distortion

The present invention relates to a kind of in order on one or more dimensions with the method and the relevant device of shape element bending.

The method that the purpose of this invention is to provide a above-mentioned type, the side effect by the transverse shape distortion that stretches bending one shape element can not bring to make this element thus.

Reach this purpose and be because a bending method is characterized in that, when they moves, along the direction of a cardinal principle and the power that causes bending mutually quadrature direction it apply a restraining force to above-mentioned bar elements.

This restraining force is opposite with the trend that is deformed of the cross section of this element, can guarantee that like this it keeps its original-shape.

The bar elements of one opening or local closed type is fit to method of the present invention.

Further purpose of the present invention comprises the equipment that is used to implement said method, comprise in order to the element for the treatment of bending along substantially with the direction of the power that causes bending mutually the direction of quadrature apply the device of a restraining force.

Pure in the accompanying drawing of non-limitative example and detailed description subsequently with reference to what provide, other advantages of the present invention and feature become obviously, wherein

Fig. 1 be one remain the shape element by method bending of the present invention perspective view and

Fig. 2 is the sectional view of an II along Fig. 1-this section bar that the II line is got, and this section bar is arranged at one and can operates with on the equipment of implementing method of the present invention.

One cross section is that the elongated profile element 10 of W type (as shown in Figure 1) remains on several dimensions as shown in arrow 14 by bending.

For implementing this bending method, used is the equipment that everybody knows in essence in this technology, and Fig. 2 has only schematically made diagram, it comprises a template 16 and a series of mould 18, this template has the shape of waiting to be passed to this hardware, and this mould is operated by the corresponding actuator 20 that element 10 can be withstood on the template 16.

Being used for the template 16 that contacts with element 10 and the surface of mould 18 and the shape of element 10 is complementary, so that enough supports are provided in the bending method process.

This equipment also comprise in order to along with the direction of the power that causes bending by stretching substantially mutually the direction of quadrature apply the device of a restraining force to element 10.

These restraint devices comprise pliers 22, and it is positioned at groove 24 Inner that form along the both sides of template 16, and have the jaw 26 of lateral edge region that can grasping element 10.

The jaw 26 of pliers 22 is that it can be mechanical type, pneumatic type, fluid pressure type or electrodynamic type operation by corresponding actuator 28 operations.

In the embodiments of the invention that do not show in the drawings, pliers can be replaced by vice, can be by mechanical lever systems operation rather than actuator.

For implementing this bending method, the jaw 26 of pliers 22 remains on the fringe region of element 10 on the template 16, so that the power that is applied by mould 18 produces the bending that requires and do not make its transverse shape distortion by stretching element 10.

The bending power that depends on the shape of element 10 and be applied thereto, it is possible that the concrete number of pliers 22 and/or its concrete layout are provided, so that the cross section of bar elements remains unchanged in whole process.

Certainly, it is the same that principle of the present invention keeps, and manufacturing details and embodiment can describe therewith with illustrated has big variation as non-limiting example purely, does not exceed scope of the present invention therefrom.

For example, the bending of bar elements may only take place on a dimension, and the longitudinal axis of element still remains on its original residing plane Inner.

Claims

One kind in order on one or more dimensions with the method for a shape element bending, it is characterized in that: the restraining force that a said elements to be applied in (10) is provided, this restraining force is along applying when the direction of quadrature is just working with this bending power mutually with the direction of the power that causes bending substantially, so that any distortion of the shape of cross section of limiting element (10).
2. in order to equipment, it is characterized in that at one or more dimensions bending one shape element (10): it comprise in order to along one substantially with the direction of the power of definite bending mutually the direction of quadrature apply the device of a restraining force to said elements (10).
3. as the described equipment of above-mentioned claim, it is characterized in that above-mentioned restraint device is mechanical, pneumatic, hydraulic pressure or electrically operated.
4. as claim 2 or 3 described equipment, it is characterized in that above-mentioned restraint device comprises that pliers (22) and/or tiger are plumbous, its both sides along element (10) are provided with and have the gripper (26) of lateral edge region that can grasping element (10).