CN103954414A - Upper pin reed digital display type elasticity measure apparatus and method thereof - Google Patents
Upper pin reed digital display type elasticity measure apparatus and method thereof Download PDFInfo
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- CN103954414A CN103954414A CN201410090966.9A CN201410090966A CN103954414A CN 103954414 A CN103954414 A CN 103954414A CN 201410090966 A CN201410090966 A CN 201410090966A CN 103954414 A CN103954414 A CN 103954414A
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Abstract
The invention relates to the technical field of engineering testing, discloses an upper pin reed digital display type elasticity measure apparatus and a method thereof, and especially belongs to a digital display type elasticity measure instrument which is applied to measuring the rigidity curve of an upper pin reed and a damping ratio under different processing conditions. The apparatus is composed of a mechanical module and a measurement and control module. The mechanical module comprises a base plate (1-1), a mobile sensing device and a test member fixation device. An electric translation bench (1-2) is arranged above the base plate; the mobile sensing device comprises a displacement bench, a pressure head (1-5) and a pressure sensor (1-4); the test member fixation device comprises support frames (1-10) fixed at the two sides of the base plate; a fixation plate (1-6) is connected between the two support frames; and the fixation plate is provided with a T-shaped fixation bench (1-8) and a pressure plate (1-7). The advantages are as follows: the rigidity curve of the upper pin reed and the damping ratio can be detected, and scientific data is provided for optimizing the design parameters of the upper pin reed.
Description
Technical field
The present invention relates to engineering Inspection Technique field, particularly belong to a kind of digital display type blenometer being applied to upper dog chart stiffness curve and damping ratio are measured under different processing conditionss.
Background technology
Upper dog chart is as the part in all multiple components of pneumatic pressurizing cradle, spinning quality being had a direct impact, and its importance is self-evident.It belongs to a kind of U-shaped spring, and its elastic reaction can reduce the fluctuation of cushion rubber nipper pressure, and regulates the fluctuation of service producing because of cushion rubber a variety of causes.For upper dog chart, the decline of stress relaxation and elasticity is its main failure forms, and elasticity attenuation can cause its function total loss even gradually.If upper dog chart is stress relaxation at work, can cause the yarn plucked that spins, have a strong impact on the quality of textile.And changeing manpower and the time that dog chart need to be a large amount of, this is beyond affordability for Yi Ge production enterprise.
At present, it is all generally to adopt mechanical type spring tension and compression testing machine that upper dog chart elasticity is detected, its weak point is only to test any force value of dog chart, cannot detect, let alone carry out the test of stiffness curve and damping ratio to the elasticity coefficient of upper dog chart.If want, the technical parameter of upper dog chart is improved to obtain good stress relaxation-resistant characteristic, existing checkout equipment cannot provide corresponding technical data, causes research to be had no way of doing it at all.Therefore, research and solve the problems referred to above, in design one, dog chart blenometer is technical matters urgently to be resolved hurrily.
Summary of the invention
The object of the present invention is to provide a kind of novel upper dog chart digital display type elasticity measuring device and method thereof, to reach, can test, select best-of-breed technology scheme to obtain the object of good stress relaxation-resistant characteristic and raising elasticity and permanance to the upper dog chart stiffness curve of different technologies parameter and damping ratio.
Upper dog chart digital display type elasticity measuring device provided by the present invention is comprised of mechanical module and control module, it is characterized in that, mechanical module comprises base plate, moving sensing device and test block stationary installation, and base plate top is provided with motorized precision translation stage; Wherein, moving sensing device comprises displacement platform, pressure head and pressure transducer, and pressure head and pressure transducer are fixed on the L platform of displacement platform top, and displacement platform is assemblied on motorized precision translation stage, and can above motorized precision translation stage, move; Test block stationary installation comprises the bracing frame that is fixed on base plate both sides, between two bracing frames, is connected and fixed plate, is provided with T-shaped fixed station and pressure plare on fixed head;
Described control module comprises electric displacement platform controller, data collecting card and computing machine, and electric displacement platform controller, data collecting card are connected with computing machine respectively, and electric displacement platform controller connects motorized precision translation stage, and data collecting card is connected to pressure transducer.Computing machine sends instruction, controls the displacement of motorized precision translation stage by electric displacement platform controller, and the elastic force that the upper dog chart under different displacements produces is passed to data collecting card through pressure transducer by signal, after data collecting card is processed, is presented on computer screen.
Upper dog chart digital display type elasticity measurement method provided by the present invention, comprises the steps:
1), mechanical module of the present invention and control module are installed after, use the set screw on air-bubble level regulating base board bottom surface to make base plate in horizontality;
2), select the COM1 in VISA resource name, then click connection button, as its red button of successful connection just becomes green;
3) initial velocity, the constant velocity of displacement platform motion, are set;
4), click the button that makes zero, electricity driving displacement platform setting in motion now, when displacement platform moves to the zero-bit of setting, pilot lamp is bright, now displacement platform stop motion;
5), initial velocity, constant velocity, acceleration, displacement, measurement number of times and the time delay of displacement platform motion are set, select load or add unloading, finally click the button that brings into operation, now system just brings into operation;
Select loading system just to load test, as selected to add unloading, system is proceeded unloading measurement after loading and measuring;
6), when displacement platform through one back and forth, after stopping, motion just can obtain displacement-pressure curve, then set up an Excel worksheet, as select row to show, then open newly-built Excel worksheet, click save button, just its measured data can be saved in Excel worksheet; As select row to show, its preserving type is identical;
7), tested after, on its system panel, just can obtain pressue-graph, stiffness curve, click and calculate the b that damping ratio, regression straight line button just can obtain loading merit, unload merit, damping ratio and regression equation
0, b and variances sigma.
Beneficial effect of the present invention is: can realize the detection of dog chart stiffness curve and damping ratio, for optimizing the design parameter of upper dog chart, provide science data, dog chart digital display type elasticity measuring device and method registration thereof on this simultaneously, measuring accuracy is high, and can carry out as required secondary system exploitation.
Accompanying drawing explanation
Accompanying drawing partly discloses specific embodiments of the invention, wherein,
Fig. 1, structural representation of the present invention;
Fig. 2, mechanical module vertical view of the present invention.
Embodiment
Now the present invention is described further by reference to the accompanying drawings:
As shown in Figure 1 and Figure 2, upper dog chart digital display type elasticity measuring device provided by the present invention and method thereof, by mechanical module 1 and control module 2, formed, between two modules, with cable, connect, mechanical module is used for realizing the installation of test part and fixes and test, and control module is realized the demonstration output to the motion control of mechanical module and test data.
Above-mentioned mechanical module comprises base plate 1-1, moving sensing device and test block stationary installation, and base plate top is provided with motorized precision translation stage 1-2; Wherein, moving sensing device comprises displacement platform, pressure head 1-5 and pressure transducer 1-4, and the L platform 1-3 that pressure head and pressure transducer are fixed on above displacement platform is upper, and displacement platform can move above motorized precision translation stage; Test block stationary installation comprises the bracing frame 1-10 that is fixed on base plate both sides, is connected and fixed plate 1-6 between two bracing frames, is also provided with T-shaped fixed station 1-8 and pressure plare 1-7 on fixed head, and T-shaped fixed station 1-8 adopts screw to be connected with pressure plare 1-7.
Base plate bottom surface arranges four set screw 1-9 in order to the level of regulating base board; L platform adopts and is threaded, and by one group of threaded hole, be arranged on displacement platform after as a whole with fastening nuts with pressure transducer, pressure head.
Above-mentioned fixed head left surface is processed with elongated slot 1-11, T-shaped fixed station lower surface and elongated slot bottom surface close contact during assembling; Pressure plare and T-shaped fixed station upper level are poor is 0.7mm; Pressure head 1-5 center line and T-shaped fixed station 1-8 upper level are poor is 1.2mm.
As shown in Figure 1, control module 2 is comprised of computing machine 2-1, electric displacement platform controller 2-2 and data collecting card 2-3, computing machine 2-1 sends instruction, by electric displacement platform controller 2-2, control the displacement of motorized precision translation stage 1-2, the elastic force that upper dog chart under different displacements produces is passed to data collecting card through pressure transducer by signal, after data collecting card is processed, be presented on computing machine 2-1 screen, computing machine also can connect the input medias such as keyboard, can connect the peripherals such as printer.
In basis, dog chart digital display type elasticity measuring device and method operation steps thereof are as follows:
By screw successively through the hole of pressure plare 1-7 and upper dog chart, then screw in threaded hole, make the lower surface of above-mentioned three parts trip bolt afterwards that align on platform;
(2) it is upper that test part step being assembled in is (1) fixedly mounted on fixed head 1-6 with nut, and make the bottom surface close contact of elongated slot in T-shaped fixed station 1-8 lower surface and fixed head 1-6;
(3) use the set screw 1-9 on air-bubble level regulating base board 1-1 bottom surface to make base plate 1-1 level;
(4) select the COM1 in VISA resource name, then click connection button, as its red button of successful connection just becomes green;
(5) initial velocity, the constant velocity of displacement platform motion are set;
(6) click the button that makes zero, electricity driving displacement platform setting in motion now, when displacement platform moves to the zero-bit of setting, pilot lamp is bright, now displacement platform stop motion;
(7) initial velocity, constant velocity, acceleration, the displacement of displacement platform motion are set, measure number of times and time delay, select load or add unloading, finally click the button that brings into operation, now system just brings into operation;
Select loading system just to load test, as selected to add unloading, system is proceeded unloading measurement after loading and measuring;
(8) when displacement platform just can obtain displacement-pressure curve after motion stops back and forth through one, then set up an Excel worksheet, as select row to show, then open newly-built Excel worksheet, click save button, just its measured data can be saved in Excel worksheet; As select row to show, its preserving type is identical;
(9), after having tested, on its system panel, just can obtain pressue-graph, stiffness curve.Click and calculate the b that damping ratio, regression straight line button just can obtain loading merit, unload merit, damping ratio and regression equation
0, b and variances sigma.
The above is to preferred embodiment of the present invention, is not the present invention to be done to the restriction of other form, and any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every the present invention program's content that do not depart from, to any simple modification made for any of the above embodiments, equivalent variations and remodeling, still belongs to protection scope of the present invention according to technical spirit of the present invention.
Claims (5)
1. a upper dog chart digital display type elasticity measuring device, is comprised of mechanical module and control module, it is characterized in that, described mechanical module comprises base plate (1-1), moving sensing device and test block stationary installation, and base plate top is provided with motorized precision translation stage (1-2); Wherein, moving sensing device comprises displacement platform, pressure head (1-5) and pressure transducer (1-4), and the L platform (1-3) that pressure head and pressure transducer are fixed on above displacement platform is upper, and displacement platform is assemblied on motorized precision translation stage and can be movable relatively; Test block stationary installation comprises the bracing frame (1-10) that is fixed on base plate both sides, is connected and fixed plate (1-6) between two bracing frames, is provided with T-shaped fixed station (1-8) and pressure plare (1-7) on fixed head; Described control module comprises electric displacement platform controller (2-2), data collecting card (2-3) and computing machine (2-1), and the above two are connected with computing machine respectively, and electric displacement platform controller connects motorized precision translation stage, and data collecting card is connected to pressure transducer.
2. a dog chart digital display type elasticity measurement method, is characterized in that, comprises the steps:
1), mechanical module and control module are installed after, regulating base board makes it in horizontality;
2), select the COM1 in VISA resource name, then click connection button, as its red button of successful connection just becomes green;
3) initial velocity, the constant velocity of displacement platform motion, are set;
4), click the button that makes zero, electricity driving displacement platform setting in motion now, when displacement platform moves to the zero-bit of setting, pilot lamp is bright, now displacement platform stop motion;
5), initial velocity, constant velocity, acceleration, displacement, measurement number of times and the time delay of displacement platform motion are set, select load or add unloading, finally click the button that brings into operation, now system just brings into operation;
Select loading system just to load test, as selected to add unloading, system is proceeded unloading measurement after loading and measuring;
6), when displacement platform through one back and forth, after stopping, motion just can obtain displacement-pressure curve, then set up an Excel worksheet, as select row to show, then open newly-built Excel worksheet, click save button, just its measured data can be saved in Excel worksheet; As select row to show, its preserving type is identical;
7), tested after, on its system panel, just can obtain pressue-graph, stiffness curve, click and calculate the b that damping ratio, regression straight line button just can obtain loading merit, unload merit, damping ratio and regression equation
0, b and variances sigma.
3. upper dog chart digital display type elasticity measuring device according to claim 1, is further characterized in that, described base plate bottom surface arranges four set screw (1-9) in order to the level of regulating base board.
4. upper dog chart digital display type elasticity measuring device according to claim 1, is further characterized in that, described fixed head (1-6) left surface is processed with elongated slot (1-11).
5. upper dog chart digital display type elasticity measuring device according to claim 1, is further characterized in that, described pressure plare and T-shaped fixed station upper level are poor is 0.7mm; Pressure head center line and T-shaped fixed station surface height difference are 1.2mm.
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| CN106168535A (en) * | 2016-09-20 | 2016-11-30 | 天津航天瑞莱科技有限公司 | A kind of fatigue load assay device of leaf springs of car |
| CN106289967A (en) * | 2015-06-10 | 2017-01-04 | 北京市电加工研究所 | A kind of in-place detection system measuring parts amount of deflection |
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