Ring weight online weighing and rolling deviation dispensing method

A ring and weight technology, applied in the field of ring rolling processing, can solve the problems of reducing production efficiency, waste and defective products, wasting time, etc., and achieve the effect of reducing the rate of defective products and controlling geometric accuracy

Inactive Publication Date: 2007-10-17
WUHAN UNIV OF TECH
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

When the dimensional error of the ring blank is too large during the rolling process and will exceed the required range of the geometric accuracy of the designed ring (inner hole dimensional tolerance and outer diameter dimensional tolerance), if the blank is not weighed online and the rolling error is reasonably distributed, continue rolling In the rolling process, when the size error of the ring blank is too large and exceeds the geometric accuracy of the designed ring, if the blank is not weighed online and the rolling is stopped in time for inspection and the rolling is continued, it will be wasteful. Lost time to reduce productivity

Method used

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  • Ring weight online weighing and rolling deviation dispensing method
  • Ring weight online weighing and rolling deviation dispensing method
  • Ring weight online weighing and rolling deviation dispensing method

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Embodiment Construction

[0048] A method for ring weight online weighing and rolling deviation distribution, which comprises the following steps:

[0049] 1). Calculate the relationship between the outer diameter and wall thickness in the actual ring blank rolling process:

[0050]According to the constant volume condition in the ring rolling process, the volume V of the ring before rolling can be known 0 is equal to the volume V in rolling,

[0051] V 0 = π 4 ( D 0 2 - d 0 2 ) B 0 = π 4 ( D 2 - d 2 ) B = V - ...

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Abstract

The invention belongs to ring rolling processing field, specially relates to a method for online weighing the ring weight and distributing rolling deviation in a rolling process, characterized that the method comprises the following steps: 1). calculating actual relationship of external diameter and wall thickness during actual ring blank rolling process; 2). calculating actual ring blank weight error by online measuring wall thickness of the actual ring blank with specified external diameter at a specified time; 3). according to the actual ring blank weight error, calculating size error of actual ring forge piece; 4). according to geometric accuracy requirement of the rolling ring forge piece, online selecting one dimensional tolerance allocation plan as an instruction of a ring rolling computer-control system and online distributing dimensional tolerance of the ring forge piece to roll a corresponding ring forge piece. The invention is capable of effectively controlling geometric precision of rolling ring and reducing defective rate of the rolling ring.

Description

technical field [0001] The invention belongs to the field of ring rolling processing, and in particular relates to a method for online weighing of ring weight and distribution of rolling deviation during the rolling process. Background technique [0002] In ring rolling production, the weight of each ring blank is different due to the influence of blanking error, heating and burning, and punching and skinning errors. The actual weight of the blank is around the ideal (design) The ring blank weight fluctuates randomly. The random fluctuation of the volume error of the ring blank has a great influence on the geometric accuracy of the rolled ring. When the dimensional error of the ring blank is too large during the rolling process and will exceed the required range of the geometric accuracy of the designed ring (inner hole dimensional tolerance and outer diameter dimensional tolerance), if the blank is not weighed online and the rolling error is reasonably distributed, continu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B37/00B21B38/00B21H1/06G05B15/02
Inventor 华林赵玉民毛华杰钱东升
Owner WUHAN UNIV OF TECH
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