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Preparation method of upper tool post of cold-rolled flying shear

A technology of knife holder and flying shear, which is applied to shearing machine equipment, devices for shearing forming blanks, shearing devices, etc., can solve the problems of unfavorable development of cold-rolled flying shear control systems, etc.

Active Publication Date: 2012-09-12
WISDRI ENG & RES INC LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is quite unfavorable for the design of cold-rolled flying shear and the development of its control system

Method used

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  • Preparation method of upper tool post of cold-rolled flying shear
  • Preparation method of upper tool post of cold-rolled flying shear
  • Preparation method of upper tool post of cold-rolled flying shear

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Embodiment Construction

[0039] In order to facilitate a further understanding of the method of the present invention, preferred embodiments are described in detail below in conjunction with the accompanying drawings.

[0040] The design principle of the cutting edge compensation in the present invention is as follows:

[0041] (1) Logical expression of the spatial trajectory of the upper and lower cutting edges of flying shears

[0042] Schematic diagram of flying shear movement mechanism Figure 5 shown. The trajectory of the shear blade can be solved through vector equations and geometric relations. details as follows:

[0043] In the coordinate system mon, apply the relevant knowledge of the vector equation to the quadrilateral OABC:

[0044] OA · cos ( θ 1 ) ...

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Abstract

The invention discloses a preparation method of an upper tool post of a cold-rolled flying shear. The method comprises the following steps: step 1, establishing a relative parameter equation, which conforms to a mechanical principle, according to parameters; step 2, by taking a highest point K of a lower shear blade as a beginning computing point, according to design requirements, giving an equidistant division length on the direction of a shear blade width L, and analyzing conditions of a half of the shear blade width; sep 3, solving a space track of a point U of an upper shear blade and a point K of the lower shear blade; step 4, searching an angle interval; step 5, solving a shear blade backlash compensation value of the upper tool post, which is relative to the point K of the lower shear blade; and step 6, solving a shear blade backlash compensation value of the upper tool post, which is relative to the point M(i) of each section of a lower shear blade section. According to the preparation method provided by the invention, through a space equation analysis method, requirements of a cold rolling process is combined, motion characteristics of the upper shear blade and the lower shear blade of the flying shear are analyzed, and the shear blade backlash of the cold-rolled flying shear is solved by using a circulating iterative value method, thereby achieving design of the cold-rolled flying shear more clearly.

Description

technical field [0001] The invention relates to a preparation method of an upper knife seat of a cold-rolled flying shear, in particular to a preparation method suitable for cutting edge compensation of a crank-link type flying shear in a metallurgical cold-rolling process. Background technique [0002] The cold rolling flying shear is one of the important equipments in the cold rolling production line. It is arranged behind the pinch rolls and used to cut off the head and tail of the strip. It has a segmentation function, and its working performance directly affects the production efficiency of the rolling line and the quality of the product cut. With the development of continuous rolling mills, flying shears have been used more and more widely. [0003] In the flying shear system, the upper knife seat rotates around the center point of the crank through the connecting hinge point, the trajectory of the upper shear blade is a complete curve approximately elliptical, while ...

Claims

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Application Information

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IPC IPC(8): G06F17/50B23D25/02
Inventor 严国平孙光红梁芳陈洁胡立华朱磊朱志
Owner WISDRI ENG & RES INC LTD
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