Irradiation aging test device with biaxial mechanical loading function and test method

Abstract

The invention relates to an irradiation aging test device with a biaxial mechanical loading function and a test method, and belongs to the field of material testing and precise instruments and science. Comprising a base, a biaxial stretching module and a light aging module, the biaxial stretching module and the light aging module are both fixed on the base, the axis of the light aging module is ensured to pass through the center of the biaxial stretching module, and a sample is fixed through the biaxial stretching module. The device has the advantages that the device can simulate the joint effect of tensile stress and illumination on a sample in an in-service environment, can perform light aging stretching, stretching light aging and light aging stretching composite tests on the sample, and can realize the comprehensive or local illumination effect applied to the sample by the laser in a specific fluorescence atmosphere; the same laser can be adopted to superpose and enhance the emitted laser to act on the center of the sample, or different lasers can be adopted to emit various different lasers to act on the sample.

Description

Technical Field

[0001] The invention belongs to the field of material testing and precision instruments and science, and in particular relates to a radiation aging test device and a test method with a biaxial mechanical loading function. Background Art

[0002] Photoaging mainly occurs in various non-metallic materials such as chips, rubber, and plastic. In the actual service process, the materials are exposed to certain light conditions and accompanied by various stresses, which will accelerate the damage and failure process of the materials. In the field of semiconductor and optoelectronic engineering, the photoaging and damage and failure of materials need special attention. On the one hand, photoelectric conversion is a basic functional requirement in this field. Due to differences in spectral intensity, wavelength, illumination time and other factors, the photosensitivity and photostability of the material itself will be affected during use, endangering its functional characteristics and service life. On the other hand, with the continuous development of science and technology, semiconductor devices and optoelectronic devices are increasingly pursuing miniaturization and lightweight. Vibrations and bumps caused by improper transportation and use will cause serious damage to their structural integrity and safety of use.

[0003] Therefore, testing the mechanical properties of materials under light aging conditions is the key to ensuring the integrity and safety of material applications, and can also provide guidance and support for the optimal design of material preparation and processing technology. In conventional material light aging tensile tests, due to the limitations of existing test equipment, the material is usually placed in a light aging box for light aging testing, and then the material is placed in another device for tensile testing, which is complicated to operate. The above method not only ignores the timeliness of material damage and failure, but also cannot achieve the combined effect of light aging and tensile stress. Therefore, it is necessary to design a light aging test device and test method with biaxial mechanical loading function that can perform light aging-tensile, tensile-light aging, and light aging-tensile composite tests on specimens. Summary of the invention

[0004] The invention provides a radiation aging test device and a test method with a biaxial mechanical loading function, so as to be able to perform light aging-stretching, stretching-light aging, and light aging-stretching composite tests on samples.

[0005] The technical solution adopted by the present invention is to include a base, a biaxial stretching module and a light aging module. The biaxial stretching module and the light aging module are both fixed on the base, and the axis of the light aging module is ensured to pass through the center of the biaxial stretching module, and the sample is fixed by the biaxial stretching module.

[0006] The biaxial stretching module described in the present invention includes an X-axis stretching component, a Y-axis stretching component, a clamp assembly, and a cross support. The X-axis stretching component is fixed to the base through a heightening pad, and the Y-axis stretching component is directly installed on the base to achieve spatial staggered spacing between the two; the four end faces of the cross support are respectively fixed to the right-angle support of the X-axis stretching component and the square plate of the Y-axis stretching component, and are rigidly connected by bolts; the clamp assembly is installed on the X-axis stretching component and the Y-axis stretching component through a concave connecting piece, and the lower side of the concave connecting piece is connected to the nut by bolts, and the upper side is connected to the slider by countersunk bolts, and the adapter clamp I is installed above the concave connecting piece. There are many connections between the clamp assembly and the X-axis stretching component and the Y-axis stretching component, but the connection methods are the same.

[0007] The X-axis stretching assembly described in the present invention includes a motor, a motor fixing plate, a coupling, a large lead screw fixing seat, a lead screw, a nut, a small lead screw fixing seat, a heightening pad, a right-angle support, a guide rail, a slider, a steel ruler, a reading head, and an adapter plate. The large lead screw fixing seat and the small lead screw fixing seat are fixed to the base through the heightening pad; the front and rear ends of the lead screw are respectively passed through the middle of the large lead screw fixing seat and the small lead screw fixing seat, and are installed at one end of the large lead screw fixing seat and connected to the coupling; the nut is installed on the lead screw, and two are arranged symmetrically; the motor is fixed through the motor fixing plate, the front end of the motor is connected to the coupling, and the motor fixing plate is rigidly connected to the base through bolts; the lower end of the right-angle support is installed on the base, and the upper end is used to fix the cross support; the steel ruler is attached to the side of the cross support; one end of the adapter plate is connected to the concave connecting piece, and the other end is used to fix the reading head. The composition of the Y-axis stretching assembly is basically the same as that of the X-axis stretching assembly. The difference is that the large lead screw fixing seat, the small lead screw fixing seat and the conical support of the Y-axis stretching assembly are directly installed on the base, and the square plate is installed on the conical support for fixing the cross support.

[0008] The fixture assembly described in the present invention includes a sensor connector I, a sensor, an adapter fixture I, a fixing fixture, a concave connector, an adapter fixture II, a specimen, an adapter fixture III, a sensor connector II, and an adapter fixture IV. The tail end of the sensor connector I is used to fix the sensor, and the front end is connected to the concave connector and the concave connector through a countersunk bolt; the tail end of the sensor connector II is used to fix the sensor, and the front end is connected to the concave connector and the concave connector through a countersunk bolt; the four ends of the specimen are respectively buckled in the adapter fixture I, the adapter fixture II, the adapter fixture III, and the adapter fixture IV, and then fixed by the fixing fixture.

[0009] The light aging module of the present invention comprises a fluorescent tube, a main body of the light aging module, a cantilever gear assembly, a forward and reverse driving assembly, and a column, and the light aging module is fixed on a base through the column.

[0010] The main part of the light aging module described in the present invention includes a rack, a laser mounting plate, a laser, a small slider, a small guide rail, a composite gear ratchet, a small annular guide rail, a small annular slider, an inner ring, a small guide rail mounting plate, a double-layer ratchet, an inner ring support seat, a large annular guide rail, a large annular slider, and an outer ring; the large annular guide rail is fixed to the outer ring by countersunk bolts, and the large annular slider is placed on the large annular guide rail; the double-layer ratchet is connected to the large annular slider by countersunk bolts, and the upper end of the inner ring support seat is connected to the double-layer ratchet rigid body The small annular guide rail is fixed to the inner ring by countersunk bolts, and a small annular slider is placed on the small annular guide rail; the compound gear ratchet is connected to the small annular slider; the lower side of the small guide rail mounting plate is rigidly connected to the inner ring by bolts, and the upper side is used to fix the small guide rail; the small slider is placed on the small guide rail, and the upper end is used to fix the rack; the laser mounting plate is fixed on the rack, and the laser is clamped in the cylindrical hole at the front end of the laser mounting plate by screws.

[0011] The cantilever gear assembly described in the present invention includes a cantilever support, a gear, a bearing, and a fixed shaft. The bearing is placed in the gear and is pressed by the fixed shaft. The top end of the fixed shaft is fixed to the front end of the cantilever support by screws. The front end of the cantilever support is fixed to the compound gear ratchet by bolts, and it is ensured that the upper end of the gear is meshed with the rack, and the lower end of the gear is meshed with the gear on the upper layer of the compound gear ratchet.

[0012] The forward and reverse driving assembly of the present invention comprises a rotating motor, a rotating motor fixing plate, a bevel gear, a three-wheel compound rotating shaft, a toothed belt, a double-wheel compound rotating shaft, a fixed bearing, and a bearing seat. The rotating motor is fixed on the rotating motor fixing plate, and the rotating motor fixing plate is fixed on the base; the tail end of the bevel gear cooperates with the rotating motor shaft and is clamped by a screw, and the front end is meshed with the bevel gear on the three-wheel compound rotating shaft; the fixed bearing is installed on the bearing seat, the bearing seat is fixed on the base, and the double-wheel compound rotating shaft is inserted in the fixed bearing; the double-wheel compound rotating shaft and the three-wheel compound rotating shaft are connected by an internal toothed belt; there are two groups of forward and reverse driving assemblies, and it is ensured that the top driving wheel of the double-wheel compound rotating shaft of one group cooperates with the middle ratchet of the compound gear ratchet, and the top driving wheel of the three-wheel compound rotating shaft cooperates with the upper layer of the double-layer ratchet, and the top driving wheel of the double-wheel compound rotating shaft of the other group cooperates with the bottom ratchet of the compound gear ratchet, and the top driving wheel of the three-wheel compound rotating shaft cooperates with the lower ratchet of the double-layer ratchet.

[0013] The test method using a radiation aging test device with a biaxial mechanical loading function includes the following steps: Step 1: Installation of the sample: Remove the fixed fixture, buckle the four clamping ends of the specimen in the transfer fixture I, transfer fixture II, transfer fixture III, and transfer fixture IV, and then fix them with the fixed fixture; Step 2: Light aging loading of the sample: Turn on the fluorescent tube to create a specific fluorescent range, turn on some lasers or all four lasers according to the needs, and before driving any group of forward and reverse drive components, ensure that the other group of forward and reverse drive components does not contact the double-layer ratchet and the compound gear ratchet. Drive the forward and reverse drive components forward, so that the top drive wheel of the three-wheel composite shaft drives the upper layer of the double-layer ratchet to rotate to realize the forward rotation of the laser; drive the second group of forward and reverse drive components forward, so that the top drive wheel of the second group of three-wheel composite shaft drives the lower ratchet of the double-layer ratchet to rotate to realize the reverse rotation of the laser, and reversely drive the forward and reverse drive components, so that the top drive wheel of the two-wheel composite shaft drives the middle layer of the composite gear ratchet to rotate, and then the upper gear of the composite gear ratchet drives the rack to move forward to realize the advancement of the laser; reversely drive the second group of forward and reverse drive components, so that the top drive wheel of the second group of two-wheel composite shaft drives the lower layer of the composite gear ratchet to rotate, and then the upper gear of the composite gear ratchet drives the rack to move backward to realize the retreat of the laser. Through the above-mentioned method, laser irradiation is performed on different positions of the sample or laser superposition irradiation is performed on the same position; Step 3: Tensile loading of the specimen: The motors driving the X-axis stretching assembly and the Y-axis stretching assembly realize the stretching loading of the sample. The stretching forces of the X-axis and the Y-axis are measured by sensors, and the displacements of the X-axis and the Y-axis are measured by grating ruler reading heads.

[0014] The beneficial effects of the present invention are: The present invention can simulate the combined effects of tensile stress and light to which the sample is subjected under service conditions, and can perform light aging stretching, stretching light aging, and light aging stretching composite tests on the sample; the light aging module of the present invention can realize laser rotation and feeding movement, and can ensure that the laser applies comprehensive or local light irradiation to the sample, and can also realize the superposition and enhancement effect of multiple lasers on the center of the sample; the present invention adopts lamp tubes to create a specific fluorescent atmosphere, and arrays multiple lasers, each of which can select a laser of a specific wavelength and intensity according to actual needs, so as to realize a more complex light irradiation effect on the sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic structural diagram of a biaxial stretching module of the present invention; Figure 3It is a schematic diagram of the structure of the fixing fixture and the concave connecting member in the biaxial stretching module of the present invention; Figure 4 It is a structural schematic diagram of the installation position of the bidirectional lead screw of the present invention; Figure 5 It is a structural schematic diagram of the guide rail installation position of the present invention; Figure 6 It is a structural schematic diagram of the installation position of the grating ruler of the present invention; Figure 7 is a schematic structural diagram of the light aging module of the present invention; Figure 8 It is a structural schematic diagram of the second group of forward and reverse driving components of the light aging module of the present invention; Fig. 9 It is an exploded view of the main part of the light aging module of the present invention; Fig.10 is a schematic structural diagram of a cantilever gear assembly of the present invention; Fig.11 It is a structural schematic diagram of the forward and reverse drive assembly of the present invention; In the figure: 1. Base; 2. Biaxial stretching module; 3. Light aging module; 21. X-axis stretching assembly; 22. Y-axis stretching assembly; 23. Clamp assembly; 24. Cross support; 2101. Motor; 2102. Motor fixing plate; 2103. Coupling; 2104. Large lead screw fixing seat; 2105. Lead screw; 2106. Nut; 2107. Small lead screw fixing seat; 2108. Heightening pad; 2109. Right angle support; 2110. Guide rail; 211 1. Slider; 2112. Steel ruler; 2113. Reading head; 2114. Adapter plate; 2201. Square plate; 2202. Conical support; 2301. Sensor connector I; 2302. Sensor; 2303. Adapter fixture I; 2304. Fixing fixture; 2305. Concave connector; 2306. Adapter fixture II; 2307. Sample; 2308. Adapter fixture III; 2309. Sensor connector II; 2310. Adapter fixture IV; 31. Fluorescent lamp; 32. Main part of light aging module; 33. Cantilever gear assembly; 34. Forward and reverse drive assembly; 35. Column; 3201. Rack; 3202. Laser mounting plate; 3203. Laser; 3204. Small slider; 3205. Small guide rail; 3206. Compound gear ratchet; 3207. Small annular guide rail; 3208. Small annular slider; 3209. Inner ring; 3210. Small guide rail mounting plate; 3211. Double-layer ratchet; 32 12. Inner ring support seat; 3213. Large ring guide rail; 3214. Large ring slider; 3215. Outer ring; 3301. Cantilever support; 3302. Gear; 3303. Bearing; 3304. Fixed shaft; 3401. Rotating motor; 3402. Rotating motor fixing plate; 3403. Bevel gear; 3404. Three-wheel compound rotating shaft; 3405. Toothed belt; 3406. Double-wheel compound rotating shaft; 3407. Fixed bearing; 3408. Bearing seat; Since repeated numbering is too cumbersome, additional explanation is given for some structural numbers: such as 2304, fixed clamp. Starting from this number, rotating clockwise in the corresponding figure, the same structure is respectively denoted as 2304A, fixed clamp; 2304B, fixed clamp; 2304C, fixed clamp; 2304D, fixed clamp; and so on, where A is sometimes omitted in another figure or represents a general term for the same structure. DETAILED DESCRIPTION

[0017] See also Figure 1 As shown: it includes a base 1, a biaxial stretching module 2, and a light aging module 3. The biaxial stretching module 1 and the light aging module 3 are both fixed on the base 1, and ensure that the axis of the light aging module 3 passes through the center of the biaxial stretching module 2; the sample 2307 is fixed by the biaxial stretching module 2.

[0018] See also Figures 2 to 6As shown: the biaxial stretching module 2 includes an X-axis stretching component 21, a Y-axis stretching component 22, a clamp component 23, and a cross support 24. The X-axis stretching component 21 is fixed to the base 1 through a heightening pad 2108, and the Y-axis stretching component 22 is directly installed on the base 1 to achieve spatial staggering between the two; the four end faces of the cross support 24 are respectively fixed to the right-angle support 2109 of the X-axis stretching component 21 and the square plate 2201 of the Y-axis stretching component 22, and are rigidly connected by bolts; the clamp component 23 is installed on the X-axis stretching component 21 and the Y-axis stretching component 22 through a concave connector 2305, and the lower side of the concave connector 2305 is connected to the nut 2106 by bolts, and the upper side is connected to the slider 2111 by countersunk bolts, and the adapter clamp I 2306 is installed above the concave connector 2305. There are many connections between the clamp component 23 and the X-axis stretching component 21 and the Y-axis stretching component 22, but the connection methods are the same, so only one installation is introduced in detail.

[0019] See also Figure 3-6 The X-axis stretching assembly 21 includes a motor 2101, a motor fixing plate 2102, a coupling 2103, a large lead screw fixing seat 2104, a lead screw 2105, a nut 2106, a small lead screw fixing seat 2107, a heightening pad 2108, a right-angle support 2109, a guide rail 2110, a slider 2111, a steel ruler 2112, a reading head 2113, and an adapter plate 2114. The large lead screw fixing seat 2104 and the small lead screw fixing seat 2107 are fixed to the base 1 through the heightening pad 2108; the front and rear ends of the lead screw 2105 are respectively inserted into the large lead screw fixing seat 2104 and the small lead screw fixing seat 2107. In the middle, one end of the large lead screw fixing seat 2104 is connected to the coupling 2103; the nut 2106 is installed on the lead screw 2105, and two are arranged symmetrically; the motor 2101 is fixed by the motor fixing plate 2102, the front end of the motor 2101 is connected to the coupling 2103, and the motor fixing plate 2102 is rigidly connected to the base 1 by bolts; the lower end of the right-angle support 2109 is installed on the base 1, and the upper end is used to fix the cross support 24; the steel ruler 2112 is attached to the side of the cross support 24; one end of the adapter plate 2114 is connected to the concave connector 2305A, and the other end is used to fix the reading head 2113. The composition of the Y-axis stretching assembly 22 is basically the same as that of the X-axis stretching assembly 21, except that the large lead screw fixing seat 2204, the small lead screw fixing seat 2207 and the conical support 2202 of the Y-axis stretching assembly 22 are directly installed on the base 1, and the square plate 2201 is installed on the conical support 2202 for fixing the cross support 24.

[0020] See also Figure 2-6The fixture assembly 23 includes a sensor connector I 2301, a sensor 2302, a transfer fixture I 2303, a fixing fixture 2304, a concave connector 2305, a transfer fixture II 2306, a specimen 2307, a transfer fixture III 2308, a sensor connector II 2309, and a transfer fixture IV 2310. The tail end of the sensor connector I 2301 is used to fix the sensor 2302A, and the front end is connected to the concave connector by a countersunk bolt. The sensor connector Ⅱ 2309 is connected with the concave connector 2305B and the concave connector 2305C; the tail end of the sensor connector Ⅱ 2309 is used to fix the sensor 2302B, and the front end is connected with the concave connector 2305D and the concave connector 2305F through a countersunk bolt; the four ends of the sample 2307 are respectively buckled in the transfer fixture Ⅰ 2303, the transfer fixture Ⅱ 2306, the transfer fixture Ⅲ 2308, and the transfer fixture Ⅳ 2310, and then fixed by the fixing fixture 2304.

[0021] See also Figure 7 The light aging module includes a fluorescent tube 31, a main part 32 of the light aging module, a cantilever gear assembly 33, a forward and reverse drive assembly 34, and a column 35. The light aging module is fixed to the base 1 through the column 35.

[0022] See also Fig. 9 The main part 32 of the light aging module includes a rack 3201, a laser mounting plate 3202, a laser 3203, a small slider 3204, a small guide rail 3205, a compound gear ratchet 3206, a small annular guide rail 3207, a small annular slider 3208, an inner ring 3209, a small guide rail mounting plate 3210, a double-layer ratchet 3211, an inner ring support seat 3212, a large annular guide rail 3213, a large annular slider 3214, and an outer ring 3215; the large annular guide rail 3213 is fixed to the outer ring 3215 by countersunk bolts, and the large annular slider 3214 is placed on the large annular guide rail 3213; the double-layer ratchet 3211 is connected to the large annular slider 3214 by countersunk bolts, and the upper end of the inner ring support seat 3212 is connected to the The double-layer ratchet 3211 is rigidly connected, and the lower end is connected to the inner ring 3209 by bolts, which is used for axial fixation of the inner ring 3209; the small annular guide rail 3207 is fixed to the inner ring 3209 by countersunk bolts, and a small annular slider 3208 is placed on the small annular guide rail 3207; the compound gear ratchet 3206 is connected to the small annular slider 3208; the lower side of the small guide rail mounting plate 3210 is rigidly connected to the inner ring 3209 by bolts, and the upper side is used for fixing the small guide rail 3205; the small slider 3204 is placed on the small guide rail 3205, and the upper end is used to fix the rack 3201B; the laser mounting plate 3202 is fixed on the rack 3201, and the laser 3203 is clamped in the cylindrical hole at the front end of the laser mounting plate 3202 by screws.

[0023] See also Fig.10 ,11 The cantilever gear assembly 33 includes a cantilever support 3301, a gear 3302, a bearing 3303, and a fixed shaft 3304. The bearing 3303 is placed in the gear 3302 and is pressed by the fixed shaft 3304. The top of the fixed shaft 3304 is fixed to the front end of the cantilever support 3301 by screws. The front end of the cantilever support 3301 is fixed to the compound gear ratchet 3206 by bolts, and ensures that the upper end of the gear 3302 is meshed with the rack 3201B, and the lower end of the gear 3302 is meshed with the gear on the upper layer of the compound gear ratchet 3206.

[0024] See also Figure 8 The forward and reverse drive assembly 34 includes a rotating motor 3401, a rotating motor fixing plate 3402, a bevel gear 3403, a three-wheel composite rotating shaft 3404, a toothed belt 3405, a double-wheel composite rotating shaft 3406, a fixed bearing 3407, and a bearing seat 3408. The rotating motor 3401 is fixed on the rotating motor fixing plate 3402, and the rotating motor fixing plate 3402 is fixed on the base 1; the tail end of the bevel gear 3403 cooperates with the rotating shaft of the rotating motor 3401 and is locked by screws, and the front end is meshed with the bevel gear on the three-wheel composite rotating shaft 3404; the fixed bearing 3407 is installed on the bearing seat 3408, and the bearing seat 3408 is fixed on the bottom On the seat 1, the double-wheel compound rotating shaft 3406 is inserted into the fixed bearing 3407; the double-wheel compound rotating shaft 3406 and the three-wheel compound rotating shaft 3404 are connected by an internal toothed belt; there are two groups of forward and reverse drive components 34, and it is ensured that the top driving wheel of the double-wheel compound rotating shaft 3406 of one group cooperates with the middle ratchet of the compound gear ratchet 3206, and the top driving wheel of the three-wheel compound rotating shaft 3404 cooperates with the upper layer of the double-layer ratchet 3211, and the top driving wheel of the double-wheel compound rotating shaft 3406B of the other group cooperates with the bottom ratchet of the compound gear ratchet 3206, and the top driving wheel of the three-wheel compound rotating shaft 3404B cooperates with the lower ratchet of the double-layer ratchet 3211; The present invention also proposes a radiation aging test method with a biaxial mechanical loading function, which uses the above-mentioned in-plane biaxial tensile test device under simulated light aging conditions to perform the test, comprising the following steps: Step 1: Installation of sample 2307: Remove the fixing fixtures 2304A, 2304B, 2304C and 2304D, buckle the four clamping ends of the sample 2307 in the transfer fixtures I 2303, II 2306, III 2308 and IV 2310, and then fix them with the fixing fixture 2304; Step 2: Light aging loading of sample 2307: Turn on the fluorescent tube 31 to create a specific fluorescent range, and turn on some lasers 3203 or all four lasers as needed. Before driving any group of forward and reverse drive components 34, ensure that the other group of forward and reverse drive components does not contact the double-layer ratchet 3211 and the compound gear ratchet 3206. Forward drive the forward and reverse drive component 34A so that the top drive wheel of the three-wheel composite shaft 3404 drives the upper layer of the double-layer ratchet 3211 to rotate to achieve the forward rotation of the laser 3203; forward drive the second group of forward and reverse drive components 34B so that the top drive wheel of the second group of three-wheel composite shaft 3404B drives the lower ratchet of the double-layer ratchet 3211 to rotate to achieve the reverse rotation of the laser 3203. Reverse drive the forward and reverse drive assembly 34A, so that the top drive wheel of the double-wheel composite shaft 3406 drives the middle layer of the composite gear ratchet 3206 to rotate, and then the upper gear of the composite gear ratchet 3206 drives the rack to move forward, so that the laser 3203 moves forward; reverse drive the second group of forward and reverse drive assembly 34B, so that the top drive wheel of the second group of double-wheel composite shaft 3406 drives the lower layer of the composite gear ratchet 3206 to rotate, and then the upper gear of the composite gear ratchet 3206 drives the rack to move backward, so that the laser 3203 moves backward. In the above manner, laser irradiation is performed on different positions of the sample 2307 or laser superposition irradiation is performed on the same position; Step 3: Tensile loading of sample 2307: The motors driving the X-axis stretching assembly 21 and the Y-axis stretching assembly 22 realize the stretching loading on the sample 2307. The stretching forces of the X-axis and the Y-axis are respectively measured by sensors 2302A and 2302B. The displacements of the X-axis and the Y-axis are respectively measured by grating scale reading heads 2113A and grating scale reading heads 2113B.

Claims

1. A radiation aging test device with biaxial mechanical loading function, characterized in that: It includes a base, a biaxial stretching module and a light aging module. The biaxial stretching module and the light aging module are both fixed on the base, and the axis of the light aging module is ensured to pass through the center of the biaxial stretching module. The sample is fixed by the biaxial stretching module.

2. The radiation aging test device with biaxial mechanical loading function according to claim 1 is characterized in that: The biaxial stretching module includes an X-axis stretching component, a Y-axis stretching component, a fixture component, and a cross support. The X-axis stretching component is fixed to the base through a heightening pad, and the Y-axis stretching component is directly installed on the base to achieve spatial staggered spacing between the two. The four end faces of the cross support are respectively fixed to the right-angle support of the X-axis stretching component and the square plate of the Y-axis stretching component, and are rigidly connected by bolts. The fixture assembly is installed on the X-axis stretching component and the Y-axis stretching component through a concave connecting piece, and the lower side of the concave connecting piece is connected to the nut by bolts, and the upper side is connected to the slider by a countersunk bolt. The adapter fixture I is installed above the concave connecting piece. There are many connections between the fixture assembly and the X-axis stretching component and the Y-axis stretching component, but the connection methods are the same.

3. The radiation aging test device with biaxial mechanical loading function according to claim 2 is characterized in that: The X-axis stretching assembly includes a motor, a motor fixing plate, a coupling, a large lead screw fixing seat, a lead screw, a nut, a small lead screw fixing seat, a heightening pad, a right-angle support, a guide rail, a slider, a steel ruler, a reading head, and an adapter plate. The large lead screw fixing seat and the small lead screw fixing seat are fixed to the base through the heightening pad; the front and rear ends of the lead screw are respectively passed through the middle of the large lead screw fixing seat and the small lead screw fixing seat, and are installed at one end of the large lead screw fixing seat and connected to the coupling; the nut is installed on the lead screw, and two are arranged symmetrically; the motor is fixed through the motor fixing plate, the front end of the motor is connected to the coupling, and the motor fixing plate is rigidly connected to the base through bolts; the lower end of the right-angle support is installed on the base, and the upper end is used to fix the cross support; the steel ruler is attached to the side of the cross support; one end of the adapter plate is connected to the concave connector, and the other end is used to fix the reading head. The composition of the Y-axis stretching assembly is basically the same as that of the X-axis stretching assembly. The difference is that the large lead screw fixing seat, the small lead screw fixing seat and the conical support of the Y-axis stretching assembly are directly installed on the base, and the square plate is installed on the conical support for fixing the cross support.

4. The radiation aging test device with biaxial mechanical loading function according to claim 2 is characterized in that: The fixture assembly includes a sensor connector I, a sensor, an adapter fixture I, a fixing fixture, a concave connector, an adapter fixture II, a specimen, an adapter fixture III, a sensor connector II, and an adapter fixture IV. The tail end of the sensor connector I is used to fix the sensor, and the front end is connected to the concave connector and the concave connector through a countersunk bolt; the tail end of the sensor connector II is used to fix the sensor, and the front end is connected to the concave connector and the concave connector through a countersunk bolt; the four ends of the specimen are respectively buckled in the adapter fixture I, the adapter fixture II, the adapter fixture III, and the adapter fixture IV, and then fixed by the fixing fixture.

5. The radiation aging test device with biaxial mechanical loading function according to claim 1 is characterized in that: The light aging module comprises a fluorescent tube, a main part of the light aging module, a cantilever gear assembly, a forward and reverse driving assembly, and a column. The light aging module is fixed on the base through the column.

6. The radiation aging test device with biaxial mechanical loading function according to claim 5 is characterized in that: The main part of the light aging module includes a rack, a laser mounting plate, a laser, a small slider, a small guide rail, a compound gear ratchet, a small annular guide rail, a small annular slider, an inner ring, a small guide rail mounting plate, a double-layer ratchet, an inner ring support seat, a large annular guide rail, a large annular slider, and an outer ring; the large annular guide rail is fixed to the outer ring by countersunk bolts, and the large annular slider is placed on the large annular guide rail; the double-layer ratchet is connected to the large annular slider by countersunk bolts, and the upper end of the inner ring support seat is rigidly connected to the double-layer ratchet The lower end is connected to the inner ring by bolts for axial fixation of the inner ring; the small annular guide rail is fixed to the inner ring by countersunk bolts, and a small annular slider is placed on the small annular guide rail; the compound gear ratchet is connected to the small annular slider; the lower side of the small guide rail mounting plate is rigidly connected to the inner ring by bolts, and the upper side is used to fix the small guide rail; the small slider is placed on the small guide rail, and the upper end is used to fix the rack; the laser mounting plate is fixed on the rack, and the laser is clamped in the cylindrical hole at the front end of the laser mounting plate by screws.

7. The radiation aging test device with biaxial mechanical loading function according to claim 5 is characterized in that: The cantilever gear assembly includes a cantilever support, a gear, a bearing, and a fixed shaft. The bearing is placed in the gear and is pressed by the fixed shaft. The top end of the fixed shaft is fixed to the front end of the cantilever support by screws. The front end of the cantilever support is fixed to the compound gear ratchet by bolts, and it is ensured that the upper end of the gear is meshed with the rack, and the lower end of the gear is meshed with the gear on the upper layer of the compound gear ratchet.

8. The radiation aging test device with biaxial mechanical loading function according to claim 5, characterized in that: The forward and reverse drive components include a rotating motor, a rotating motor fixing plate, a bevel gear, a three-wheel compound rotating shaft, a toothed belt, a double-wheel compound rotating shaft, a fixed bearing, and a bearing seat. The rotating motor is fixed on the rotating motor fixing plate, and the rotating motor fixing plate is fixed on the base; the tail end of the bevel gear cooperates with the rotating motor rotating shaft and is clamped by a screw, and the front end is meshed with the bevel gear on the three-wheel compound rotating shaft; the fixed bearing is installed on the bearing seat, the bearing seat is fixed on the base, and the double-wheel compound rotating shaft is inserted in the fixed bearing; the double-wheel compound rotating shaft and the three-wheel compound rotating shaft are connected by an internal toothed belt; there are two groups of forward and reverse drive components, and it is ensured that the top driving wheel of the double-wheel compound rotating shaft of one group cooperates with the middle ratchet of the compound gear ratchet, and the top driving wheel of the three-wheel compound rotating shaft cooperates with the upper layer of the double-layer ratchet, and the top driving wheel of the double-wheel compound rotating shaft of the other group cooperates with the bottom ratchet of the compound gear ratchet, and the top driving wheel of the three-wheel compound rotating shaft cooperates with the lower ratchet of the double-layer ratchet.

9. A testing method using the radiation aging test device with biaxial mechanical loading function as claimed in any one of claims 1 to 8, comprising the following steps: Step 1: Installation of the sample: Remove the fixed fixture, buckle the four clamping ends of the specimen in the transfer fixture I, transfer fixture II, transfer fixture III, and transfer fixture IV, and then fix them with the fixed fixture; Step 2: Light aging loading of the sample: Turn on the fluorescent tube to create a specific fluorescent range, turn on some lasers or all four lasers according to the needs, and before driving any group of forward and reverse drive components, ensure that the other group of forward and reverse drive components does not contact the double-layer ratchet and the compound gear ratchet. Drive the forward and reverse drive components forward, so that the top drive wheel of the three-wheel composite shaft drives the upper layer of the double-layer ratchet to rotate to realize the forward rotation of the laser; drive the second group of forward and reverse drive components forward, so that the top drive wheel of the second group of three-wheel composite shaft drives the lower ratchet of the double-layer ratchet to rotate to realize the reverse rotation of the laser, and reversely drive the forward and reverse drive components, so that the top drive wheel of the two-wheel composite shaft drives the middle layer of the composite gear ratchet to rotate, and then the upper gear of the composite gear ratchet drives the rack to move forward to realize the advancement of the laser; reversely drive the second group of forward and reverse drive components, so that the top drive wheel of the second group of two-wheel composite shaft drives the lower layer of the composite gear ratchet to rotate, and then the upper gear of the composite gear ratchet drives the rack to move backward to realize the retreat of the laser. Through the above-mentioned method, laser irradiation is performed on different positions of the sample or laser superposition irradiation is performed on the same position; Step 3: Tensile loading of the specimen: The motors driving the X-axis stretching assembly and the Y-axis stretching assembly realize the stretching loading of the sample. The stretching forces of the X-axis and the Y-axis are measured by sensors, and the displacements of the X-axis and the Y-axis are measured by grating ruler reading heads.

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