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Sensor for measuring rotary machining torque and axial force

A technology for processing torque and axial force, applied in the field of measuring instruments, can solve problems such as poor eccentric load bearing capacity and poor sensitivity, and achieve the effects of enhancing eccentric load bearing capacity, reducing mutual influence, and increasing bending stiffness

Inactive Publication Date: 2013-10-23
SHAANXI UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the traditional cylindrical and thin-walled cylindrical sensors in small hole drilling, tapping and vibration drilling, vibration tapping, there is a measured parameter with poor sensitivity and poor load bearing capacity. Insufficient problems, invented a composite sensor that can directly measure torque and axial force

Method used

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  • Sensor for measuring rotary machining torque and axial force
  • Sensor for measuring rotary machining torque and axial force
  • Sensor for measuring rotary machining torque and axial force

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Embodiment Construction

[0013] The structure and working principle of the patent of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0014] Embodiment, the structure of this embodiment is shown in accompanying drawing. The structure includes elastic element 3, base plate 1, workpiece clamping disc 6, housing 4, rubber protective cover 5, plug 10, 4 base plate screws 2 and two base plate pins 11, 4 clamping disc screws 8 and two clips Holding disc pin 9, 4 housing fixing screws 12. The elastic element is a whole processed part; it consists of four columns b, four beams d, upper ring a, transition disc c, and lower ring e. The ring is processed by wire cutting, and the inner diameter and outer diameter of the ring are the same as the upper ring; due to the integral processing, the four columns are fixedly connected with the upper ring and the transition disc, forming four beams with fixed ends in mechanics ; Similarly, the four beams con...

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Abstract

The invention discloses a sensor for measuring rotary machining torque and axial force. A strain measuring principle is adopted, and the sensor is mainly used for measuring the torque and the axial force in a rotary machining process. The sensor consists of an elastic element (3), a bottom plate (1), a workpiece clamping device, a shell (4), a rubber protecting cover (5), positioning pins, screws and a plug (10), and is characterized in that: the elastic element is an integrally machined workpiece with a four-beam and four-post structure and respectively comprises an upper circular ring (a), four posts (b), a transition round disc (c), four beams (d) and a lower circular ring (e), wherein the four posts are respectively connected with the upper circular ring and the transition round disc to form the four beams of which the two ends are fixed mechanically, and are used for measuring the torque; and the four beams are respectively connected with the lower circular ring and the transition round disc to also form the four beams of which the two ends are fixed mechanically, and are used for measuring the axial force. The structure has high sensitivity and high eccentric load resistance, and can meet the requirements of different measurement ranges, different sensitivities and inherent frequency.

Description

technical field [0001] The patent of the present invention belongs to measuring instruments, and specifically relates to a sensor for measuring torque and axial force in rotary processing. Background technique [0002] In the research of drilling, tapping, vibration drilling, and vibration tapping, it is necessary to measure the torque and axial force of machining. At present, the measurement of drilling torque and axial force of drilling, tapping torque and axial force of tapping The methods of force are strain type and piezoelectric type. Piezoelectric measurement sensors have the advantages of good stiffness, small hysteresis, and high natural frequency, and are suitable for the measurement of various dynamic forces and moments. However, the measurement accuracy is not high when the measurement is static or the frequency is low. Strain sensor is a device widely used to measure force and torque. According to different elastic elements, there are various forms of cylinder...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L3/00G01L5/12
Inventor 杨明亮
Owner SHAANXI UNIV OF TECH
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