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A profile multi-point flexible reciprocating bending pressure straightening device and straightening method

A technology for forming presses and profiles, applied in the field of profile multi-point flexible reciprocating bending pressure straightening devices, can solve the problems of waste of resources, narrow range of initial shape, increase of enterprise costs, etc., achieve high utilization rate, uniform residual curvature, reduce The effect of business costs

Active Publication Date: 2020-04-28
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of the traditional straightening process are: the enterprise purchases special straightening equipment, which undoubtedly greatly increases the cost of the enterprise; and these professional equipment are generally only suitable for a certain type of profile, and the range of initial shape of the applicable profile is narrow. When there are many kinds of profiles, it is necessary to purchase a variety of straightening equipment, which not only increases the company's expenditure, but also reduces the use probability of each equipment, wasting resources; the residual curvature of each section of the profile straightened by the traditional straightening process is uneven, and there are Residual Stress

Method used

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  • A profile multi-point flexible reciprocating bending pressure straightening device and straightening method
  • A profile multi-point flexible reciprocating bending pressure straightening device and straightening method
  • A profile multi-point flexible reciprocating bending pressure straightening device and straightening method

Examples

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Effect test

Embodiment 1

[0034] Example 1, such as figure 1 As shown, the present invention provides a profile multi-point flexible reciprocating bending pressure straightening device, which includes two symmetrically arranged mold assemblies. The mold assembly includes an upper template 1 and a plurality of straightening assemblies arranged side by side on the upper template 1. The straightening assembly includes a manual drive device and a pressure head 9. The manual drive device is connected with the pressure head 9 to control the up and down movement of the pressure head 9. The position of the pressure head 9 can be adjusted at will during the straightening process of the profile multi-point flexible reciprocating bending pressure straightening device. , the user can adjust the radius of the envelope surface of the mold assembly according to the needs, so that the straightening device can be applied to various profiles 10, which reduces the cost of the enterprise, and the profile multi-point flexib...

example 1

[0055] The profile 10 geometric dimensions to be corrected are 20mm * 5.45mm * 320mm, and the material is 304, and the measured deflection is 6mm. According to the initial shape of the profile 10, by adjusting the screw rod 3, the radius of the envelope surface is controlled, the radius of the envelope surface of the upper mold assembly is 802.330mm, and the radius of the envelope surface of the lower mold assembly is 807.78mm. For the first pressing, the profile 10 to be straightened is placed on the lower mold assembly, and the upper mold assembly presses the profile 10 with the movement of the beam of the forming press. When the upper mold assembly and the mold assembly are completely closed, the beam of the forming press stop moving. After the first pressing is completed, the upper mold assembly is unloaded along with the beam of the forming press, and then the profile 10 is turned over 180 degrees, placed on the lower mold assembly, and bent again, and the above pressing ...

example 2

[0057] The profile 10 to be corrected has a geometric dimension of 20mm x 5.45mm x 320mm, the material is ST12, and the measured deflection is 6mm. By adjusting the screw rod 3, the control envelope radius is 850.299mm and the envelope radius of the lower mold assembly is 855.749mm. Pressing for the first time, the profile 10 to be straightened is placed on the lower mold assembly, and the upper mold assembly is pressed against the profile 10 as the beam of the forming press moves. When the upper mold assembly and the mold assembly are completely closed, the beam of the forming press stop moving. After the first pressing is completed, the upper mold assembly is unloaded along with the beam of the forming press, and then the profile 10 is turned over 180 degrees, placed on the lower mold assembly, and bent again, and the above pressing process is repeated 7 times. The radii of the envelope surfaces are 850.299mm and 855.749mm respectively. The radii of the envelope surfaces o...

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Abstract

The invention discloses a sectional material multi-point flexible reciprocating bending pressure straightening device and a straightening method, and relates to the technical field of machining methods and devices. The straightening device comprises two symmetrically-arranged mold assemblies, the mold assemblies each comprise an upper mold plate and a plurality of straightening assemblies arrangedon the corresponding upper mold plate side by side, the straightening assemblies comprise manual driving devices and pressing heads, and the manual driving devices are connected with the pressing heads so as to control the pressing heads to move up and down. The positions of the pressing heads in the straightening process of the straightening device can be adjusted randomly, and a user can adjustthe radiuses of the enveloping surfaces of the mold assemblies according to needs so that the straightening device can be suitable for various sectional materials, the enterprise cost is reduced, andthe utilization rate of the straightening device is high; and meanwhile, the user can conveniently and circularly bend the sectional material by turning the sectional material, so that the residual curvature of each section of the sectional material is uniform.

Description

technical field [0001] The invention relates to the technical field of mechanical processing methods and devices, in particular to a profile multi-point flexible reciprocating bending pressure straightening device and straightening method. Background technique [0002] During the plastic forming process such as rolling, forging, extrusion, stretching, heat treatment, transportation, cooling, etc., the profile is often bent and deformed by external force, temperature, tissue stress and thermal stress. If the longitudinal fiber or longitudinal section changes from curved to straight, the profile must be straightened on the straightening device. Straightening is an important finishing process in the production process of metallurgical industry and machinery manufacturing industry, which determines the final quality and precision of metal profiles and mechanical parts, and has become an indispensable branch of industrial development. At present, profile straightening mainly ado...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D3/10
CPCB21D3/10
Inventor 于高潮赵军刘彦军
Owner YANSHAN UNIV