﻿ 特型弹簧智能刚度检测仪的研制 Development of Intelligent Detector for Special Spring Stiffness

Instrumentation and Equipments
Vol. 07  No. 04 ( 2019 ), Article ID: 33150 , 5 pages
10.12677/IaE.2019.74030

Development of Intelligent Detector for Special Spring Stiffness

Jin Yu1, Bingqing Liu2

1School of Mechatronic Engineering, Shenyang Aerospace University, Shenyang Liaoning

2School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an Shaanxi

Received: Nov. 1st, 2019; accepted: Nov. 19th, 2019; published: Nov. 26th, 2019

ABSTRACT

An intelligent detector for special tension spring stiffness used in mechanical thermostat was developed. Thought analyzing the structure of thermostat spring, the mechanical part of stiffness detector was designed which was used to clamp and pull the spring automatically. The detector used 8051 SCM as the controlling core, and a high-precision force sensor was used to collect force data. The stiffness value of springs was detected quickly and accurately, and the springs were classified according to test data. This detector improves the detection efficiency and accuracy effectively. Detection rate can reach more than 400/hour. Measurement error is ±0.02 N/mm.

Keywords:Special Spring, Stiffness, Detector, Temperature Controller

1沈阳航空航天大学机电工程学院，辽宁 沈阳

2西安交通大学机械工程学院，陕西 西安

1. 引言

1——挂钩，2——螺母。

Figure 1. Temperature controller spring

2. 检测装置工作原理与机构设计

2.1. 刚度检测原理分析

$F=k×\Delta l$ (1)

${F}_{1}={k}_{1}×\Delta {l}_{1}$ (2)

${F}_{2}={k}_{2}×\Delta {l}_{2}$ (3)

${F}_{2}-{F}_{1}={k}_{2}×\Delta {l}_{2}-{k}_{1}×\Delta {l}_{1}=k{\left(\Delta {l}_{2}-\Delta l\right)}_{1}$

$k=\left({F}_{2}-{F}_{1}\right)/\left(\Delta {l}_{2}-\Delta {l}_{1}\right)$ (4)

2.2. 检测装置机构设计

1——步进电机，2——小齿轮，3——大齿轮，4——端面凸轮，5——推杆，6——杠杆， 7——挂钩，8——螺杆，9——摩擦轮，10——送簧机构，11——分拣装置。

Figure 2. Detection device mechanism diagram

Figure 3. 3D model of the stiffness detector

3. 测控系统设计

Figure 4. System service process

4. 结论

Development of Intelligent Detector for Special Spring Stiffness[J]. 仪器与设备, 2019, 07(04): 223-227. https://doi.org/10.12677/IaE.2019.74030

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