CN210774453U

CN210774453U - Material strength analysis stress meter

Info

Publication number: CN210774453U
Application number: CN201921453394.0U
Authority: CN
Inventors: 卓剑峰; 何敏燕
Original assignee: Hangzhou Herui Precision Instrument Co Ltd
Current assignee: Hangzhou Herui Precision Instrument Co Ltd
Priority date: 2019-09-03
Filing date: 2019-09-03
Publication date: 2020-06-16
Anticipated expiration: 2029-09-03

Abstract

The utility model discloses a material strength analysis stress appearance, include the lens hood, bear frame, eyepiece and LED lamp, the internally mounted who bears the frame has the casing, and the inside bottom of casing installs the LED lamp, and the casing internal weld of LED lamp top has the mount, the inside bottom of mount is provided with the heat insulating sheet, and the inside condensing lens that is provided with of mount of heat insulating sheet top, the inside speculum that is provided with of mount of condensing lens top, and the inside polarizer that is provided with of mount of speculum top to the inside diverging mirror that is provided with of mount of polarizer top. The utility model discloses an install lens hood, fixture block, draw-in groove, mesa glass, solid fixed ring and mounting groove, and constitute threaded connection between solid fixed ring and the mounting groove for the device has optimized the structure of self, and convenient to use person dismantles lens hood and mesa glass from the casing and installs, thereby convenient to use person clears up and maintains lens hood and mesa glass, has strengthened the functionality of device.

Description

Material strength analysis stress meter

Technical Field

The utility model relates to a stress gauge technical field specifically is a material strength analysis stress gauge.

Background

In the actual production, the strength analysis of various materials is needed, and a material strength analysis stress meter is needed, which is a machine for nondestructive testing of stress condition, so that people can more intuitively distinguish the stress condition of a sample in the production process without damaging the tested materials, the application range is wider, the material strength analysis stress meter is used for measuring the birefringence phenomenon of the transparent object caused by the internal stress, such internal stresses are caused by uneven cooling of the object or other causes such as mechanical effects, etc., and are observed through birefringence phenomena of the transparent object (the test object), the quality of optical glass, glass products or other transparent material products can be rapidly and continuously identified, but the existing material strength analysis stress meter has the following problems when in use:

1. the traditional material strength analysis stress meter is often poor in light shading performance, and cannot effectively avoid strong light irradiation, so that in the detection process, the external strong light can interfere the experimental result, and the long-term popularization of the device is not facilitated;

2. the existing material strength analysis stress meter also generally has the problems of simple structure and difficult disassembly and maintenance of parts, which causes poor use effect of the device;

3. the existing material strength analysis stress meter on the market also has the problems of low applicability and difficult adjustment of the use height, which is not favorable for fully meeting the requirements of users.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a material strength analysis stress appearance to solve the light shading nature that proposes among the above-mentioned background art not good, simple structure, spare part be difficult for dismantling and maintain and the not good and low problem of suitability of light filtering effect.

In order to achieve the above object, the utility model provides a following technical scheme: a material strength analysis stress meter comprises a light shield, a bearing frame, an ocular and an LED lamp, wherein a shell is arranged inside the bearing frame, the LED lamp is arranged at the bottom end inside the shell, a fixing frame is welded inside the shell above the LED lamp, a heat insulation sheet is arranged at the bottom end inside the fixing frame, a condenser is arranged inside the fixing frame above the heat insulation sheet, a reflector is arranged inside the fixing frame above the condenser, a polarizer is arranged inside the fixing frame above the reflector, a divergent mirror is arranged inside the fixing frame above the polarizer, table glass is arranged at the top end of the shell, a telescopic supporting rod is fixed at one side of the top of the shell, a base plate is arranged at the top end of the telescopic supporting rod, an analyzer is fixed at one side inside the base plate, the ocular is arranged on the base plate at one end of the analyzer, the ocular penetrates through the bottom end of the base plate, and, and a light shield is arranged at the top end of the shell.

Preferably, four corners of lens hood bottom all evenly are provided with the fixture block, the top of casing be provided with fixture block assorted draw-in groove, and the lateral wall parcel of fixture block has anti-skidding silica gel cover, constitutes between lens hood and the casing and dismantles mounting structure.

Preferably, the top end of the light shield is provided with a preformed hole matched with the eyepiece, one side of the light shield is provided with an operation opening, and the light shield above the operation opening is provided with an observation window matched with the lens cone.

Preferably, the casing all evenly is provided with the regulation hole that is equidistant range with the both ends that bear the frame, and the internally mounted of regulation hole has fixing bolt to bear four corners of frame bottom and all evenly be provided with the supporting legs, the bottom of supporting legs is provided with anti-skidding rubber pad.

Preferably, the outer side wall welding of mesa glass has solid fixed ring, and solid fixed ring's lateral wall is provided with the external screw thread, and the top of casing is provided with the mounting groove, and the inside wall of mounting groove be provided with external screw thread assorted internal thread to the both ends at solid fixed ring top all are provided with the action columns.

Preferably, the outer sides of the observation window and the operation opening are welded with limiting metal strips, and shading cloth is sleeved on the limiting metal strips through hanging rings.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the material strength analysis stress meter is provided with the light shield, the operation opening, the shading cloth, the observation window, the limiting metal strip and the hanging ring, so that the device realizes better light shading by utilizing the light shield on one hand, and avoids errors caused by external strong light on a detection result, and the observation window and the operation opening are arranged, so that a user can adjust the position of an internal material and adjust an ocular lens in the detection process, and the shading effect on the observation window and the operation opening is utilized by utilizing the action of the shading cloth on the other hand, and the user can expose the observation window or the operation opening when needing to use the observation window or the operation opening, thereby improving the use effect of the device;

(2) the material strength analysis stress meter is provided with the light shield, the clamping block, the clamping groove, the table-board glass, the fixing ring and the mounting groove, and the fixing ring and the mounting groove are in threaded connection, so that the structure of the device is optimized, a user can conveniently detach and mount the light shield and the table-board glass from the shell, the user can conveniently clean and maintain the light shield and the table-board glass, and the functionality of the device is enhanced;

(3) the material strength analysis stress meter is provided with the bearing frame, the supporting legs, the adjusting holes, the fixing bolts and the shell, so that the structure of the device is further optimized, a user can conveniently adjust the position of the shell in the bearing frame by using the functions of the adjusting holes and the fixing bolts, the function of adjusting the use height of the shell is achieved, the applicability of the device is enhanced, the requirements of users with different heights on the use height of the shell are conveniently met, and the long-term popularization of the device is facilitated;

(4) this material intensity analysis stress meter is through installing diverging mirror, polarizer, speculum, condensing lens and heat insulating sheet for the device has realized better thermal-insulated effect through the light that the heat insulating sheet sent the LED lamp, and utilizes diverging mirror, polarizer, speculum and condensing lens, has realized better processing effect to the light, has guaranteed that the polarized light that obtains at last is comparatively accurate, and then the person of being convenient for detects the analysis through the distribution of polarized light to birefringence.

Drawings

Fig. 1 is a schematic view of the front cross-sectional structure of the present invention;

FIG. 2 is a schematic top view of the housing of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

fig. 4 is a schematic view of the front view structure of the light-shielding cover of the present invention.

In the figure: 1. a light shield; 2. a clamping block; 3. a housing; 4. fixing the bolt; 5. an adjustment hole; 6. a carrier; 7. supporting legs; 8. a telescopic support rod; 9. an analyzer; 10. an eyepiece; 11. a lens barrel; 12. a diverging mirror; 13. a polarizer; 14. a mirror; 15. a condenser lens; 16. a heat insulating sheet; 17. a fixed mount; 18. an LED lamp; 19. a card slot; 20. table glass; 21. a substrate; 22. a fixing ring; 23. mounting grooves; 24. a shade cloth; 25. hanging a ring; 26. an observation window; 27. an operation port; 28. and limiting the metal strip.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment: a material strength analysis stress meter comprises a light shield 1, a bearing frame 6, an ocular lens 10 and an LED lamp 18, wherein a shell 3 is arranged inside the bearing frame 6, the LED lamp 18 is arranged at the bottom end inside the shell 3, a fixing frame 17 is welded inside the shell 3 above the LED lamp 18, adjusting holes 5 which are arranged at equal intervals are uniformly formed in two ends of the shell 3 and the bearing frame 6, fixing bolts 4 are arranged inside the adjusting holes 5, supporting legs 7 are uniformly arranged at four corners of the bottom end of the bearing frame 6, and anti-skid rubber pads are arranged at the bottom ends of the supporting legs 7;

the adjusting holes 5 and the fixing bolts 4 are utilized to facilitate the user to adjust the position of the shell 3 in the bearing frame 6, so that the use height of the shell 3 is adjusted, and the applicability of the device is enhanced;

the bottom end inside the fixing frame 17 is provided with a heat insulation sheet 16, a condenser 15 is arranged inside the fixing frame 17 above the heat insulation sheet 16, a reflector 14 is arranged inside the fixing frame 17 above the condenser 15, a polarizer 13 is arranged inside the fixing frame 17 above the reflector 14, a dispersing mirror 12 is arranged inside the fixing frame 17 above the polarizer 13, the top end of the shell 3 is provided with a table glass 20, a telescopic supporting rod 8 is fixed on one side of the top of the shell 3, the outer side wall of the table glass 20 is welded with a fixing ring 22, the outer side wall of the fixing ring 22 is provided with an external thread, the top end of the shell 3 is provided with a mounting groove 23, the inner side wall of the mounting groove 23 is provided with an internal thread matched with the external thread, and two ends of;

the screw thread connection between the fixing ring 22 and the mounting groove 23 is utilized, so that a user can conveniently grasp the operating column, the fixing ring 22 is rotated, the user can detach the table top glass 20 from the shell 3, the user can conveniently clean and maintain the table top glass 20, and the practicability of the device is enhanced;

a base plate 21 is installed at the top end of the telescopic supporting rod 8, an analyzer 9 is fixed at one side inside the base plate 21, an eyepiece 10 is installed on the base plate 21 at one end of the analyzer 9, the eyepiece 10 penetrates through the bottom end of the base plate 21, a lens barrel 11 is arranged at the bottom end of the eyepiece 10, a light shield 1 is installed at the top end of the shell 3, fixture blocks 2 are uniformly arranged at four corners of the bottom end of the light shield 1, a clamping groove 19 matched with the fixture blocks 2 is formed in the top end of the shell 3, an anti-skid silica gel sleeve wraps the outer side wall of the fixture blocks 2, and a dismounting and installing structure is formed between the light;

the structure of the device is optimized, a user can conveniently detach or install the light shield 1 by utilizing the matching effect of the clamping block 2 and the clamping groove 19, and therefore the practicability of the device is enhanced;

a preformed hole matched with the ocular lens 10 is formed in the top end of the light shield 1, an operation opening 27 is formed in one side of the light shield 1, and an observation window 26 matched with the lens barrel 11 is formed in the light shield 1 above the operation opening 27;

the device has the advantages that good light shading performance is realized, errors caused by external strong light on a detection result are avoided, and the observation window 26 and the operation opening 27 are arranged, so that a user can conveniently adjust the position of an internal material and adjust the ocular lens 10 in the detection process, and the functionality of the device is enhanced;

limiting metal strips 28 are welded on the outer sides of the observation window 26 and the operation opening 27, and shading cloth 24 is sleeved on the limiting metal strips 28 through hanging rings 25;

by utilizing the function of the shading cloth 24, the shading function is realized for the observation window 26 and the operation opening 27, and the user can expose the observation window 26 or the operation opening 27 when needing to use the observation window 26 or the operation opening 27, thereby improving the using effect of the device.

The working principle is as follows: when the device is used, a power supply is connected externally, a worker firstly places a material sample to be detected on the table glass 20, then the lens hood 1 is well installed on the shell 3 by utilizing the matching effect of the clamping block 2 and the clamping groove 19, then the LED lamp 18 is started, a light beam emitted by the LED lamp 18 is changed into plane polarized light through the heat insulating sheet 16, the condenser 15, the reflector 14 and the polarizer 13, and then the plane polarized light is projected onto the material sample through the diverging mirror 12 and the table glass 20, because the material sample has stress, the plane polarized light is decomposed into ordinary light and extraordinary light with mutually vertical vibration directions, because the propagation speeds of the ordinary light and the extraordinary light are different, the ordinary light and the extraordinary light are fast and slow, after the material sample is transmitted, an optical path difference is generated, the worker can observe the optical path difference through the ocular lens 10, then the distribution of birefringence is detected and analyzed by utilizing the polarized light, and the distribution and the size of the refractive index directly reflect the distribution and the size of the material stress, rotating the material sample makes the interference color with the maximum brightness appear in the visual field of the user (the material sample without stress is purple red all the time in the visual field no matter how it rotates, and the material sample with stress can appear two interference colors with the maximum brightness when rotating), determining the size of the optical path difference according to the interference color look-up table or the comparison standard sheet, wherein the interference color is determined by the size of the optical path difference, and the optical path difference can be represented by the following formula: r/d (nl n2), wherein R represents the optical path difference, d represents the thickness of the tested sample, the refractive index difference between the ordinary light and the extraordinary light can be calculated through the formula, namely the determination of the glass stress is realized, the strength level of the glass is determined, when the device is used in particular, the good light shading performance is realized by utilizing the function of the light shield 1, the error of the detection result caused by the external strong light is avoided, and the device is provided with the operation port 27, so that a user can conveniently adjust the position of the internal material and rotate the eyepiece 10 in the detection process, thereby enhancing the functionality of the device, finally, as the device is provided with the light shield 1, the fixture block 2, the clamp groove 19, the table glass 20, the fixing ring 22 and the mounting groove 23, and the fixing ring 22 and the mounting groove 23 form the threaded connection, the device optimizes the structure of the device, and is convenient for the user to disassemble and install the light shield 1 and the table glass 20 from the shell 3, thereby facilitating the cleaning and maintenance of the light shield 1 and the table glass 20 by the user and enhancing the functionality of the device.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a material strength analysis stress appearance, includes lens hood (1), bears frame (6), eyepiece (10) and LED lamp (18), its characterized in that: the LED lamp comprises a bearing frame (6), a shell (3) is arranged inside the bearing frame (6), an LED lamp (18) is arranged at the bottom end inside the shell (3), a fixing frame (17) is welded inside the shell (3) above the LED lamp (18), a heat insulation sheet (16) is arranged at the bottom end inside the fixing frame (17), a condenser lens (15) is arranged inside the fixing frame (17) above the heat insulation sheet (16), a reflector (14) is arranged inside the fixing frame (17) above the condenser lens (15), a polarizer (13) is arranged inside the fixing frame (17) above the reflector (14), a diffuser (12) is arranged inside the fixing frame (17) above the polarizer (13), table glass (20) is arranged at the top end of the shell (3), a telescopic supporting rod (8) is fixed on one side of the top of the shell (3), and a base plate (21) is arranged at the top end of the telescopic supporting rod (, and one side of the inside of base plate (21) is fixed with analyzer (9), install eyepiece (10) on the base plate (21) of analyzer (9) one end, and eyepiece (10) run through the bottom of base plate (21), and the bottom of eyepiece (10) is provided with lens cone (11), lens hood (1) is installed on the top of casing (3).

2. A material strength analysis stress gauge according to claim 1, wherein: four corners of lens hood (1) bottom all evenly are provided with fixture block (2), the top of casing (3) be provided with fixture block (2) assorted draw-in groove (19), and the lateral wall parcel of fixture block (2) has anti-skidding silica gel cover, constitutes between lens hood (1) and casing (3) and dismantles mounting structure.

3. A material strength analysis stress gauge according to claim 1, wherein: the top of lens hood (1) is provided with the preformed hole with eyepiece (10) assorted, and one side of lens hood (1) is provided with operation mouth (27), and is provided with on lens hood (1) above operation mouth (27) with lens-barrel (11) assorted observation window (26).

4. A material strength analysis stress gauge according to claim 1, wherein: casing (3) and the both ends that bear frame (6) all evenly are provided with and are equidistant regulation hole (5) of arranging, and the internally mounted of regulation hole (5) has fixing bolt (4) to four corners that bear frame (6) bottom all evenly are provided with supporting legs (7), and the bottom of supporting legs (7) is provided with anti-skidding rubber pad.

5. A material strength analysis stress gauge according to claim 1, wherein: the outer side wall welding of mesa glass (20) has solid fixed ring (22), and the outer side wall of solid fixed ring (22) is provided with the external screw thread, and the top of casing (3) is provided with mounting groove (23), and the inside wall of mounting groove (23) be provided with external screw thread assorted internal thread to the both ends at solid fixed ring (22) top all are provided with the action bars.

6. A material strength analysis stress gauge according to claim 3, wherein: the outside welding of observation window (26) and operation mouth (27) has spacing metal strip (28), and spacing metal strip (28) are gone up and are equipped with shading cloth (24) through link (25) cover.