CN103063424B - A kind of test method of zoom stype LASER HEATING thermal fatigue test stand - Google Patents
A kind of test method of zoom stype LASER HEATING thermal fatigue test stand Download PDFInfo
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- CN103063424B CN103063424B CN201210590261.4A CN201210590261A CN103063424B CN 103063424 B CN103063424 B CN 103063424B CN 201210590261 A CN201210590261 A CN 201210590261A CN 103063424 B CN103063424 B CN 103063424B
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Abstract
The invention discloses a kind of zoom stype LASER HEATING thermal fatigue test stand, this kind of zoom stype LASER HEATING thermal fatigue test stand comprises varifocal laser aid and worktable, and described varifocal laser aid is installed on the top of worktable; Described varifocal laser aid comprises that column is provided with can up-down adjustment transverse arm, and the right-hand member of transverse arm is fixed with laser emission port, and the lower end of laser emission port is connected with focusing lens, and column is fixed on the pedestal of worktable.By the way, the present invention for dissimilar test specimen, can carry out spot heating measurement; By the focus of adjustment lens, the size of heated perimeter can be controlled; Can carry out non-uniform heat flux to test specimen, the simulation situation of being heated that laminating is actual more, measures the heat fatigue degree of test specimen.
Description
Technical field
The present invention relates to mechanical engineering field, particularly relate to a kind of test method of zoom stype LASER HEATING thermal fatigue test stand.
Background technology
The running of machinery is often with the generation of heat, and production, processing, Power output all can make mechanical part bear high temperature, and the parts fatigue breakdown brought thus is rather common.Trace it to its cause, be that member temperature changes repeatedly, be difficult in the stress produced in the process eliminate, some component, then due to inequality of being heated, makes internal stress too concentrated, thus destroys mechanical part inner structure.But be a great problem of puzzlement commissioning staff all the time to the non-uniform heat flux of micro-member.
Summary of the invention
The technical matters that the present invention mainly solves is to provide a kind of test method of zoom stype LASER HEATING thermal fatigue test stand, for dissimilar test specimen, can carry out spot heating measurement; By the focus of adjustment lens, the size of heated perimeter can be controlled; Can carry out non-uniform heat flux to test specimen, the simulation situation of being heated that laminating is actual more, measures the heat fatigue degree of test specimen.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of zoom stype LASER HEATING thermal fatigue test stand, this a kind of zoom stype LASER HEATING thermal fatigue test stand comprises varifocal laser aid and worktable, and described varifocal laser aid is installed on the top of worktable; Described varifocal laser aid comprises column, and column is provided with can the transverse arm of up-down adjustment, and the right-hand member of transverse arm is fixed with laser emission port, and the lower end of laser emission port is connected with focusing lens, and column is fixed on the pedestal of worktable;
Preferably, described worktable comprises pedestal, guide rail A, threaded guide rod A, adjusting handle A and transfer table, described threaded guide rod A one end be movably attached to pedestal, the other end of threaded guide rod A is provided with adjusting handle A through after pedestal, pedestal is fixed with guide rail A, in the same way, guide rail A is provided with slidably transfer table to guide rail A and threaded guide rod A, and transfer table is connected on threaded guide rod A;
Preferably, described transfer table comprises traveling platform, guide rail B, threaded guide rod B, adjusting handle B, tie down screw, fixture block A and fixture block B, one end of described threaded guide rod B is movably attached to traveling platform, the other end of threaded guide rod B is provided with adjusting handle B through after traveling platform, traveling platform is fixed with guide rail B, guide rail B and threaded guide rod B in the same way, guide rail A is provided with slidably fixture block A and fixture block B, fixture block A is installed with rotatable tie down screw, one end of tie down screw is movably attached to fixture block B, and fixture block A is also connected to threaded guide rod B.
The invention has the beneficial effects as follows: a kind of zoom stype LASER HEATING of the present invention thermal fatigue test stand, adopt LASER HEATING, scioptics to the focusing of laser beam, to the spot heating of sample, observe the growth of the crackle of test specimen, find out applicable part time job temperature control curve; For dissimilar test specimen, spot heating measurement can be carried out; By the focus of adjustment lens, the size of heated perimeter can be controlled; Can carry out non-uniform heat flux to test specimen, the simulation situation of being heated that laminating is actual more, measures the heat fatigue degree of test specimen.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of zoom stype LASER HEATING of the present invention thermal fatigue test stand;
Fig. 2 is that enlarged drawing is looked on the transfer table right side of a kind of zoom stype LASER HEATING of the present invention thermal fatigue test stand.
Embodiment
Below in conjunction with accompanying drawing, present pre-ferred embodiments is described in detail, to make the advantage of invention and feature can be easier to be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
Refer to Fig. 1 and Fig. 2, the embodiment of the present invention comprises:
A kind of zoom stype LASER HEATING thermal fatigue test stand, this kind of zoom stype LASER HEATING thermal fatigue test stand comprises varifocal laser aid 1 and worktable 2, and described varifocal laser aid 1 is installed on the top of worktable 2; Described varifocal laser aid 1 comprises column 11, column 11 is provided with can the transverse arm 12 of up-down adjustment, the right-hand member of transverse arm 12 is fixed with laser emission port 13, and the lower end of laser emission port 13 is connected with focusing lens 14, and column 11 is fixed on the pedestal 21 of worktable 2;
Described worktable 2 comprises pedestal 21, guide rail A22, threaded guide rod A23, adjusting handle A24 and transfer table 25, described threaded guide rod A23 one end be movably attached to pedestal 21, the other end of threaded guide rod A23 is provided with adjusting handle A24 through after pedestal 21, pedestal 21 is fixed with guide rail A22, guide rail A22 and threaded guide rod A23 in the same way, guide rail A22 is provided with slidably transfer table 25, and transfer table 25 is connected on threaded guide rod A23;
Described transfer table 25 comprises traveling platform 251, guide rail B252, threaded guide rod B253, adjusting handle B254, tie down screw 255, fixture block A256 and fixture block B257, one end of described threaded guide rod B253 is movably attached to traveling platform 251, the other end of threaded guide rod B253 is provided with adjusting handle B254 through after traveling platform 251, traveling platform 251 is fixed with guide rail B252, guide rail B252 and threaded guide rod B253 in the same way, guide rail A252 is provided with slidably fixture block A256 and fixture block B257, fixture block A256 is installed with rotatable tie down screw 255, one end of tie down screw 255 is movably attached to fixture block B257, fixture block A256 is also connected to threaded guide rod B253.
A kind of test method of zoom stype LASER HEATING thermal fatigue test stand: be placed on by test specimen in clamping block A256 and fixture block B257, by rotating adjustment handle A24, adjusts its lateral attitude, rotates adjustment handle B254, changes its lengthwise position.Test specimen is adjusted to heated center, moves up and down and make the focus of focusing lens 14 be positioned on test specimen; Open power switch, make laser by laser emission port 13, through the focusing of focusing lens 14, heated center is covered surface of test piece; When test specimen is heated beyond its actual work temperature, the reading of record thermopair.Take off test specimen, be placed in water and cool.Observe crackle degree, and record numerical value; Change test specimen, adjustment focus size, in the spot heating of test specimen, uses thermocouple measuring temperature simultaneously, record data.
The test method of a kind of zoom stype LASER HEATING of the present invention thermal fatigue test stand, for dissimilar test specimen, can carry out spot heating measurement; By the focus of adjustment lens, the size of heated perimeter can be controlled; Can carry out non-uniform heat flux to test specimen, the simulation situation of being heated that laminating is actual more, measures the heat fatigue degree of test specimen.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize instructions of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (1)
1. the test method of a zoom stype LASER HEATING thermal fatigue test stand, it is characterized in that: the first step, in fixture block A test specimen being placed on zoom stype LASER HEATING thermal fatigue test stand and fixture block B, by rotating the adjustment handle A on zoom stype LASER HEATING thermal fatigue test stand, the lateral attitude of adjustment test specimen, rotate the adjustment handle B of zoom stype LASER HEATING thermal fatigue test stand, change the lengthwise position of test specimen; Second step, is adjusted to the heated center of zoom stype LASER HEATING thermal fatigue test stand by test specimen, move up and down and make the focus of the focusing lens of zoom stype LASER HEATING thermal fatigue test stand be positioned on test specimen; 3rd step, opens the power switch of zoom stype LASER HEATING thermal fatigue test stand, makes laser by the laser emission port of zoom stype LASER HEATING thermal fatigue test stand, through the focusing of focusing lens, heated center is covered surface of test piece; When test specimen is heated beyond its actual work temperature, the reading of record thermopair; 4th step, takes off test specimen, is placed in water and cools, and observes crackle degree, and records numerical value; 5th step, changes test specimen, and adjustment focus size, in the spot heating of test specimen, uses thermocouple measuring temperature simultaneously, record data;
Described zoom stype LASER HEATING thermal fatigue test stand comprises varifocal laser aid and worktable, and described varifocal laser aid is installed on the top of worktable; Described varifocal laser aid comprises column, and column is provided with can the transverse arm of up-down adjustment, and the right-hand member of transverse arm is fixed with laser emission port, and the lower end of laser emission port is connected with focusing lens, and column is fixed on the pedestal of worktable; Described worktable comprises pedestal, guide rail A, threaded guide rod A, adjusting handle A and transfer table, one end of described threaded guide rod A is movably attached to pedestal, the other end of threaded guide rod A is provided with adjusting handle A through after pedestal, pedestal is fixed with guide rail A, guide rail A and threaded guide rod A in the same way, guide rail A is provided with slidably transfer table, and transfer table is connected on threaded guide rod A; Described transfer table comprises traveling platform, guide rail B, threaded guide rod B, adjusting handle B, tie down screw, fixture block A and fixture block B, one end of described threaded guide rod B is movably attached to traveling platform, the other end of threaded guide rod B is provided with adjusting handle B through after traveling platform, traveling platform is fixed with guide rail B, guide rail B and threaded guide rod B in the same way, guide rail B is provided with slidably fixture block A and fixture block B, fixture block A is installed with rotatable tie down screw, one end of tie down screw is movably attached to fixture block B, and fixture block A is also connected to threaded guide rod B.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210590261.4A CN103063424B (en) | 2012-12-29 | 2012-12-29 | A kind of test method of zoom stype LASER HEATING thermal fatigue test stand |
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| CN201210590261.4A CN103063424B (en) | 2012-12-29 | 2012-12-29 | A kind of test method of zoom stype LASER HEATING thermal fatigue test stand |
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| CN103063424B true CN103063424B (en) | 2016-03-02 |
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| CN106644800B (en) * | 2016-12-05 | 2019-02-12 | 中国科学院力学研究所 | A kind of thermal fatigue test device |
| CN109827893A (en) * | 2018-12-30 | 2019-05-31 | 浙江众泰汽车制造有限公司 | A kind of high temperature resistant fatigue rig |
| CN114923724B (en) * | 2022-07-22 | 2022-10-28 | 西安交通大学 | Gradient thermal shock and thermal fatigue test device and method for aerospace vehicle structure |
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