A positioning punching machine for measuring residual stress of non-magnetic metal plate
A residual stress, metal plate technology, applied in the direction of measuring force, measuring device, metal processing equipment, etc., to achieve the effect of accurate numerical value and less damage to the workpiece
Inactive Publication Date: 2018-03-13
TIANJIN UNIVERSITY OF TECHNOLOGY
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[0004] The purpose of the present invention is to provide a positioning punching machine for measuring residual stress, so as to accurately determine the position of punching when measuring the residual stress of a non-magnetic metal plate workpiece
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[0021] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.
[0022] Such as figure 1 As shown, a positioning punching machine according to a specific embodiment of the present invention includes:
[0023] A fixed round table 1 with a diameter of 10 cm; a straight-through telescopic mechanism is provided on the fixed round table 1, and the straight-through telescopic mechanism is composed of two sets of straight-through telescopic rods, wherein the first straight-through telescopic rod lower rod 2 is a tubular body structure, and the bottom Connected with the fixed round table 1, the top tube body is provided with a first straight-through telescopic rod upper rod 3, and ensures that the first straight-through telescopic rod upper rod 3 can move up and down inside the 2; the first...
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Abstract
The invention discloses a locating and punching machine for measuring residual stress of a nonmagnetic metal plate and relates to the field of residual stress measuring equipment. The locating and punching machine comprises a circular fixing table, a centering device and a punching mechanism. The multi-freedom degree of a USB digital microscope is used for adjusting the position of the punching mechanism, the focus is adjusted, the center position of the USB digital microscope is clearly centered to a strain rosette grating center, and the punching position of a workpiece is accurately located. After localization is successful, the USB digital microscope is taken down, a drill rod is arranged for punching operation. By the adoption of the locating and punching machine for measuring the residual stress, the measured residual stress numerical value is accurate, and damage to the workpiece is small. The locating and punching machine is suitable for a flat thin metal plate and also suitable for a thin metal plate with the concave-convex surface, and the machine can be used for measurement in a laboratory and a production site.
Description
technical field [0001] The invention relates to the field of equipment for measuring residual stress, in particular to a positioning punching machine for measuring residual stress of non-magnetic metal sheets. Background technique [0002] In recent years, with the rapid development of the national economy and the continuous improvement of people's living standards, stainless steel has been widely used in agriculture, industry, national defense and daily life. The rapid development of some modern industrial sectors such as automobiles, tanks, high-end mobile phones, household appliances, etc. not only has greatly increased the demand for stainless steel, but also put forward strict requirements for shape quality. Therefore, the production technology of advanced cold-rolled stainless steel is particularly important. Now 90% of stainless steel is rolled by 20-roller Sendzimir rolling mill. Due to the high deformation resistance of stainless steel cold rolling, it is about twi...
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IPC IPC(8): B23B47/00G01L1/00
CPCB23B47/00G01L1/00
Inventor 马叙李泽明丁燕红
Owner TIANJIN UNIVERSITY OF TECHNOLOGY