Unlock instant, AI-driven research and patent intelligence for your innovation.

Device and method for measuring contact deformation and contact stress between metal parts

A technology of metal parts and contact stress, applied in the direction of measuring device, measuring force, instrument, etc., can solve the problems of measurement accuracy and enforceability, and measurement cannot be directly obtained.

Active Publication Date: 2018-11-13
BEIJING INSTITUTE OF TECHNOLOGYGY
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when X-ray diffraction method and ultrasonic measurement method are used, only the stress state when the parts are in contact can be measured, and the accuracy and feasibility of the measurement are limited by the thickness of the part. The measurement of the contact state between parts cannot be directly obtained

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device and method for measuring contact deformation and contact stress between metal parts
  • Device and method for measuring contact deformation and contact stress between metal parts
  • Device and method for measuring contact deformation and contact stress between metal parts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1. A device for measuring contact deformation and contact stress between metal parts, including: frame 1, pressure plate 2, test piece 3, force sensor 4, direction adjustment component 5, hydraulic cylinder 6, manual hydraulic rod 7, strain gauge 8 , a strain gauge connecting line 9 and a measuring head 10 of a three-coordinate measuring instrument.

[0031] The frame 1 is a rectangular frame, and the two sides of the bottom protrude to form a fixed platform for fixing on the test bench. The upper end of the frame 1 has a waist-shaped through hole, and the inner bottom of the frame 1 has screw holes.

[0032] The pressure plate 2 has 4 circular through holes, and the positions of the circular through holes correspond to the positions of the waist-shaped through holes on the frame 1; On the boss, wire slots are provided in areas other than the contact bosses, and the wire slots are used to accommodate the strain gauge connecting wires 9 .

[0033] A countersu...

Embodiment 2

[0038] figure 1 The device used in the measurement method provided by the present invention is shown, which includes: a frame 1, a pressing plate 2, a test piece 3, a force sensor 4, a direction adjustment component 5, a hydraulic cylinder 6, a manual hydraulic rod 7, a strain gauge 8, a strain gauge Meter connection line 9 and three-coordinate measuring instrument probe 10.

[0039] Such as figure 2 , 3 , 4, the frame 1 upper surface 11 has a waist-shaped through hole 101, the position of the waist-shaped through hole 101 corresponds to the position of the circular hole 17 of the pressure plate 2, and the inner bottom surface 16 of the frame 1 has a screw hole 102 for The position of the hydraulic cylinder 6 is fixed, and the left and right feet of the frame 1 have waist-shaped holes 103 and 104 with countersinks, and the frame 1 and the worktable can be fixed together with bolts.

[0040] Pressing plate 2 has 4 round holes 17, and the surface of pressing plate 2 can have...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention discloses a device and method for measurement of contact deformation and contact stress between metal parts. The device and method for measurement of contact deformation and contact stress between metal parts are configured to measure the contact deformation and contact stress between light-proof metal parts with a certain thickness. The lower surface of a pressing plate is provided with a contact boss matched with a contact area on the contact surface of a test piece; the upper surface of the test piece is a contact surface, and the non-contact area on the contact area is pasted with a strainometer; a hydraulic cylinder is fixed on the bottom of a frame; the pressing plate, the test piece pasted with the strainometer, a force sensor and a direction regulation part are putted on the hydraulic cylinder from down to up in order; the lower surface of the pressing plate is applied to the contact surface of the test piece, and the upper surface of the pressing plate is applied to the inner surface of the upper end of the frame; the strainometer is connected with a deformeter through the strainometer connecting line; a manual hydraulic rod is connected with the hydraulic cylinder; three coordinate measuring instruments are contacted with the contact surface of the test piece through a waist-shaped through hole on the frames and a circular through hole on the pressing plate; and the direction regulation part is configured to regulate the force output direction of the hydraulic cylinder to allow the force output direction to perpendicular to the horizontal direction and allow the hydraulic cylinder to output force upwards.

Description

technical field [0001] The invention belongs to the invention relates to a contact deformation and contact stress measurement device and method between metal parts, and belongs to the field of mechanical manufacturing. Background technique [0002] At present, the contact state of contact parts between parts refers to the measurement of contact deformation and contact stress. Most of them use optical measurement principles and corresponding measuring devices, and only measure the contact state between non-metallic transparent parts or at least one of the parts in contact with each other is transparent. Contact state measurement between parts of materials. However, when X-ray diffraction method and ultrasonic measurement method are used, only the stress state when the parts are in contact can be measured, and the accuracy and feasibility of the measurement are limited by the thickness of the part. The measurement of the contact state between parts cannot be obtained directly...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01B21/32G01L1/22
CPCG01B21/32G01L1/22
Inventor 肖木峥张之敬房燕金鑫黄晨灿陈骁
Owner BEIJING INSTITUTE OF TECHNOLOGYGY