CN106644204B - Intensive toughened glass surface stress instrument - Google Patents
Intensive toughened glass surface stress instrument Download PDFInfo
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- CN106644204B CN106644204B CN201710127500.5A CN201710127500A CN106644204B CN 106644204 B CN106644204 B CN 106644204B CN 201710127500 A CN201710127500 A CN 201710127500A CN 106644204 B CN106644204 B CN 106644204B
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- 239000005341 toughened glass Substances 0.000 title claims abstract description 25
- 238000003384 imaging method Methods 0.000 claims abstract description 31
- 238000001514 detection method Methods 0.000 abstract description 31
- 238000012545 processing Methods 0.000 abstract description 14
- 230000003287 optical effect Effects 0.000 abstract description 8
- 239000011521 glass Substances 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000005286 illumination Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000005304 optical glass Substances 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
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- Investigating Or Analysing Materials By Optical Means (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention belongs to the field of optical detection, and particularly relates to an intensive tempered glass surface stress meter which comprises a working table plate, an illuminating unit, a light refraction unit, an imaging unit and an image processing unit, wherein the illuminating unit comprises a light source and a light source adjusting mechanism, the lower part of the working table plate is provided with a fixed seat and an adjusting block, the fixed seat is arranged on the lower side of the working table plate, the adjusting block is hinged with the fixed seat through a pin shaft, the adjusting block is provided with an adjusting threaded hole which is communicated up and down, an adjusting screw rod is arranged in the adjusting threaded hole, one end of the adjusting screw rod abuts against a supporting block, the other end of the adjusting screw rod is provided with a knob, a return spring is arranged between the fixed seat and the adjusting block, and the light source is arranged on the adjusting block.
Description
Technical Field
The invention belongs to the field of optical detection, and particularly relates to an intensive tempered glass surface stress meter.
Background
The toughened glass, also called tempered glass, is a prestressed glass, and usually adopts a chemical or physical method to form a compressive stress on the surface of the glass, and when the glass bears an external force, the surface pressure is firstly counteracted, so that the bearing capacity is improved, and therefore, the toughened glass is widely applied to the fields of building doors and windows, glass curtain walls, electronic instruments and the like. But the cut edge of the tempered glass has a large number of micro-cracks, resulting in a decrease in the strength of the glass. Particularly, with the rapid development of the touch industry, the specification requirements of the touch product are becoming more and more strict, and since the touch panel is operated by applying pressure from the outside to perform the operation of the sensing element, the mechanical stress of the touch panel is an important specification and index for various manufacturers. For optical glass, the existence of large stress also seriously affects optical light transmittance and imaging quality. Therefore, in order to ensure the usability of the tempered glass product, the stress of the tempered glass should be controlled within a predetermined range, which requires the surface stress of the tempered glass to be detected.
Common toughened glass surface stress appearance mainly adopts the optical waveguide principle to survey toughened glass surface stress on the existing market, as china utility model patent 201420643584.X discloses a novel full-automatic glass surface stress appearance, including instrument body, eyepiece angle regulator, light source and birefringent prism, the eyepiece is located on the eyepiece angle regulator, eyepiece angle regulator fixes on the instrument body, birefringent prism protrusion in instrument body upper surface, the light source is located in the instrument body, the front end of eyepiece is located birefringent prism's light refraction direction, birefringent prism is located the light of light source and jets out the direction, an industrial camera is installed to the rear bottom of eyepiece, install a drip ware and a laser thickness measuring apparatu directly over birefringent prism, industrial camera, drip ware and laser thickness measuring apparatu all connect the computer processor through the data line. When the stress meter is used for detecting the surface stress of the toughened glass, the glass to be detected is placed on the surface of the birefringent prism so that the birefringent prism is attached to the surface of the birefringent prism, light emitted by the light source needs to be incident on the birefringent prism, and total reflection occurs on the contact surface of the birefringent prism and the glass to be detected. In order to improve the measurement accuracy, the incident angle of the light source needs to be adjusted in time so as to form the optimal light incident on the birefringent prism. In the patent, still disclose one set of elevating system who adjusts light source incident angle, elevating system is this internal light source crane that is equipped with of instrument, the light source crane is connected with the light source lift adjustment hand wheel transmission of part protrusion instrument body, the light source is fixed in on the light source crane. Although the lifting mechanism can adjust the incident angle of the light source, the overall structure of the stress meter is huge due to the large size of the lifting mechanism, the miniaturization of the stress meter is not facilitated, and the flexible application of the stress meter in the field of automatic production is limited. In addition, the light source of the existing stress meter needs to be matched with each other through the LED lamp bead, the light-gathering bowl, the diffusion sheet and the lens so as to achieve the purpose of uniform light, the structure of the mode is complex, the process of the LED lamp bead and the light-gathering bowl is limited, the consistency of projection light spots of all devices is difficult to ensure, and the detection precision and stability of the stress meter are influenced.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provide a compact tempered glass surface stress gauge with high integration level, high precision and stable detection result.
The technical scheme adopted by the invention for solving the defects of the prior art is as follows:
the intensive tempered glass surface stress meter is characterized in that the illuminating unit comprises a light source and a light source adjusting mechanism, the light source adjusting mechanism is that a fixed seat and an adjusting block are arranged below the working table plate, the fixed seat is arranged on the lower side of the working table plate, the adjusting block is hinged with the fixed seat through a pin shaft, an adjusting screw hole which is communicated with the upper portion and the lower portion of the adjusting screw hole is arranged in the adjusting screw hole, one end of the adjusting screw hole is abutted against the top of the supporting block, and a power adjusting knob is arranged on the supporting block and is used for providing a power adjusting point for the adjusting screw block. The light source adjusting mechanism is arranged, so that the stress meter can realize fine adjustment of the incident angle of the light source only by rotating the knob when in use, the integral structure is simplified, the integration level of the whole stress meter is improved, the incident angle of the light source can be adjusted more flexibly, and the detection precision and the detection efficiency are improved.
The supporting block is arranged on one side of the fixed seat, and the adjusting threaded hole and the light source are respectively positioned on two sides of the pin shaft.
The supporting block is arranged on the lower side of the working table plate, one end of the adjusting block is hinged with the fixed seat through a pin shaft, the other end of the adjusting block is provided with a light source, and the adjusting threaded hole is formed in the middle of the adjusting block.
The adjusting block at one end of the light source is provided with a linear bearing, a sliding shaft capable of freely sliding along the linear bearing is arranged in the linear bearing, a light source fixing seat is arranged on the sliding shaft, and at least one light source is arranged on the light source fixing seat. By arranging at least one light source on the light source fixing seat, the stress meter can select a proper light source according to the actual situation of stress detection, the application range of the stress meter is expanded, and the detection flexibility is improved.
The light source is an LED array light source. The light source adopts the LED array light source, so that the optical system of the stress meter is optimized, the integral structure is simplified, the brightness of light rays emitted by the light source is high, the uniformity effect is good, the detection precision of the stress meter is improved, and the manufacturing cost is reduced.
The light refraction unit is characterized in that a prism table is arranged on the working table plate, a prism groove which is communicated up and down is arranged in the middle of the prism table, a prism is arranged in the prism groove, a sample to be detected is placed on the prism, light emitted by a light source is incident on the sample to be detected through the prism, and the light is transmitted in the sample to be detected and then enters the imaging unit through the prism for imaging.
The prism is an isosceles prism, the bottom surface of the isosceles prism slightly protrudes out of the upper surface of the prism groove, and the sample to be detected is placed on the bottom surface of the isosceles prism. Light emitted by the light source is incident on the bottom surface of the isosceles prism from one of the waist surfaces of the isosceles prism, the contact surface of the bottom surface of the isosceles prism and a sample to be detected is totally reflected, and the totally reflected light is emitted from the other waist surface of the prism.
The cross section shape and the size of the prism groove are matched with the shape and the size of the bottom surface of the isosceles prism, the prism groove is tightly connected with the isosceles prism to form a closed prism table, and the bad phenomenon that the detection precision is influenced because the refracted liquid dripped to the bottom surface of the prism flows to the waist surface of the prism in the detection process is effectively prevented.
The prism table is provided with air suction holes which are uniformly distributed on the periphery of the prism groove, the lower surface of the prism table matched with the air suction holes is provided with air suction holes, an air suction channel is arranged between the upper surface and the lower surface of the prism table, the air suction holes are connected with the air suction holes through the air suction channel, and the air suction holes are connected with an air suction device. The air exhaust device vacuumizes the air between the sample to be detected and the air suction hole through the air suction hole, the air suction channel and the air suction hole, and the triangular prism is positioned in the space enclosed by the air suction hole, so that the sample to be detected can be better attached to the triangular prism, and even if the surface of the sample to be detected has certain warpage, the sample to be detected can be attached to the triangular prism through the air suction hole, and the detection precision and efficiency of the stress meter are improved.
The working table plate is provided with a limiting jig, the limiting jig is arranged in the extending direction of two adjacent sides of the prism table, the limiting jig body is provided with a plurality of limiting columns, and the plurality of limiting columns surround to form a space for accommodating a sample to be detected. The position of the sample to be detected can be limited by the arrangement of the limiting jig, so that the sample to be detected is better matched with the air suction hole, and the detection precision of the invention is improved.
The limiting column is a limiting bolt, and a limiting threaded hole matched with the limiting bolt is formed in the upper surface of the limiting jig body. The limiting column adopts a mode that the bolt and the threaded hole are matched with each other, the specific position of the limiting column is not limited, and the limiting column can be correspondingly adjusted according to the actual condition of the size of a sample to be detected, so that the application range of the stress meter is expanded.
The imaging unit is provided with a lens group, a polaroid and an image sensor in sequence along the optical path direction, the front end of the lens group is positioned in the light emitting direction of the prism and used for converging light emitted by the prism, the rear end of the lens group is provided with the polaroid, the polaroid is used for separating the light converged by the lens group into two light components which vibrate in parallel and vertically relative to the boundary surface of the prism and a sample to be detected, the rear end of the polaroid is provided with the image sensor, the image sensor is used for performing photoelectric conversion on the received light, and the brightness values of a plurality of pixels forming an image are output to an image processing device as digital image data one by one.
The illuminating unit of the stress meter comprises a light source and a light source adjusting mechanism, wherein the light source adjusting mechanism is that a fixed seat and an adjusting block are arranged below a working table plate, the fixed seat is arranged on the lower side of the working table plate, the adjusting block is hinged with the fixed seat through a pin shaft, an adjusting threaded hole which is through up and down is formed in the adjusting block, an adjusting screw rod is arranged in the adjusting threaded hole, one end of the adjusting screw rod abuts against a supporting block, the supporting block provides a power supporting point for the adjusting block to rotate by taking the pin shaft as an axis, a knob is arranged at the other end of the adjusting screw rod, a return spring is arranged between the fixed seat and the adjusting block, and the light source is arranged on the adjusting block. Because the light source fixing seat can freely slide along the adjusting block and is provided with at least one light source, when the stress meter is used, a user can select a proper light source according to the actual situation of stress detection, the application range of the stress meter is expanded, and the detection flexibility is improved. The light source adopts the LED array light source, so that the optical system of the stress meter is optimized, the integral structure is simplified, the brightness of light rays emitted by the light source is high, the uniformity effect is good, the detection precision of the stress meter is improved, and the manufacturing cost is reduced. Because the shape and the size of the cross section of the prism groove are matched with the shape and the size of the bottom surface of the triangular prism, the prism groove and the triangular prism are tightly connected to form a closed prism table, and the bad phenomenon that the detection precision is influenced because the refraction liquid dripped to the bottom surface of the triangular prism flows to the waist surface of the triangular prism in the detection process is effectively prevented. The prism table is provided with the air suction holes which are uniformly distributed at the periphery of the prism groove, and the air between the sample to be detected and the air suction holes can be vacuumized through the air suction holes, so that the sample to be detected can be attached to the triple prism through the air suction holes even if the surface of the sample to be detected has certain warpage, and the detection precision and efficiency of the stress meter are improved.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the stress gauge of the present invention, which is also a schematic diagram of a preferred embodiment.
FIG. 2 is a schematic view of a prism table according to the present invention.
Fig. 3 is a schematic structural view of a prism table and a limiting jig according to the present invention.
Fig. 4 is a schematic structural diagram of another embodiment of the stress gauge of the present invention.
Fig. 5 and 6 are schematic structural diagrams of a light source adjusting mechanism according to a second embodiment of the invention.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
Example one
Fig. 1 shows a schematic structural diagram of an embodiment of the intensive tempered glass surface stress gauge of the invention, which is also a schematic diagram of a preferred embodiment. As shown in fig. 1, the stress meter according to this embodiment includes a working platen 10, an illuminating unit 20, a light refracting unit 30, an imaging unit 40, and an image processing unit (not shown in the figure), where the illuminating unit 20 and the imaging unit 40 are located below the working platen 10, the light refracting unit 30 is located on the working platen and is used for placing a sample to be tested, the illuminating unit, the light refracting unit and the imaging unit form a light path, the light refracting unit is located in a light emitting direction of the illuminating unit, the imaging unit is located at a rear end of the light path, light emitted by the illuminating unit is incident into the sample to be tested on the light refracting unit and is imaged after total reflection, the imaging unit is connected to the image processing unit, the image processing unit performs calculation processing on an image obtained by the imaging unit, the illuminating unit includes a light source 21 and a light source adjusting mechanism, the light source adjusting mechanism adjusts an angle of light emitted by the light source incident into the light refracting unit, so that the light emitted by the light source can be incident into the light refracting unit at a critical angle, and total reflection accuracy of the stress meter is improved at a contact surface between the light refracting unit and the sample to be tested.
As shown in fig. 1, in the light source adjusting mechanism, a fixed seat 22 and an adjusting block 23 are arranged below the work table board 10, the fixed seat 22 is arranged on the lower side of the work table board 10, the adjusting block 23 is hinged to the fixed seat 22 through a pin 24, an adjusting threaded hole which is through up and down is arranged on the adjusting block 23, an adjusting screw 25 is arranged in the adjusting threaded hole, and one end of the adjusting screw abuts against a supporting block 26, in this embodiment, for convenience of production and processing, the supporting block 26 is arranged on one side of the fixed seat 22, the supporting block 26 provides a power supporting point for the adjusting block 23 when rotating with the pin 24 as an axis, as shown in fig. 1, the supporting block is preferably circular, and when the adjusting block 23 rotates with the pin as an axis, one end of the adjusting screw 25 can abut against the supporting block 26 all the time. The other end of the adjusting screw 25 is provided with a knob 27, when the knob 27 is rotated, the adjusting screw 25 is matched with the adjusting threaded hole, the adjusting screw moves upwards, and the supporting block is fixed and can apply a force opposite to the moving direction of the adjusting screw to the adjusting block, so that the adjusting block can rotate by taking the pin shaft 24 as an axis. A return spring 28 is arranged between the fixed seat 22 and the adjusting block 23, the return spring 28 can provide a force for the adjusting screw 25 to abut against the supporting block 26, so that one end of the adjusting screw 25 can always abut against the supporting block, and the stability and the measurement accuracy of the stress gauge of the invention are improved, as shown in fig. 1, in this embodiment, the return spring and the adjusting screw are located at two sides of the pin shaft, and the return spring is preferably a compression spring. The light source 21 is disposed on the adjusting block 23, the light source and the adjusting screw hole are disposed on two sides of the pin shaft, and light emitted from the light source 21 is incident into the light refracting unit 30.
The arrangement of the light source adjusting mechanism ensures that the incident angle of the light source can be adjusted only by rotating the knob when the stress gauge is used, thereby simplifying the integral structure, improving the integration level of the whole stress gauge, ensuring that the incident angle of the light source can be adjusted more flexibly and improving the detection precision and the detection efficiency. As a preferred embodiment, the light source described in this embodiment is an LED array light source. The light source adopts the LED array light source, so that the optical system of the stress meter is optimized, the integral structure is simplified, the light emitted by the light source has high brightness and good uniform effect, the detection precision of the stress meter is improved, and the manufacturing cost is reduced. Certainly, in order to improve the detection precision, a small amount of refraction liquid needs to be dripped on the surface of a sample to be detected in the detection process, and in order to prevent the dripped refraction liquid from flowing onto a light source and further damaging the light source, a transparent baffle plate can be arranged at the front end of the light source.
In the embodiment, the light refraction unit 30 is provided with a prism table 31 on the working table plate 10, the middle part of the prism table 31 is provided with a prism groove 32 which is through up and down, a prism 33 is arranged in the prism groove, the sample to be detected is placed on the prism 33, light emitted by the light source 21 is incident to the sample to be detected through the prism 33, and enters the imaging unit for imaging through the prism after being transmitted in the sample to be detected. As shown in fig. 2, in this embodiment, the prism 33 is an isosceles triangular prism, the bottom surface of the isosceles triangular prism slightly protrudes from the upper surface of the prism groove 32, and the sample to be detected is placed on the bottom surface of the isosceles triangular prism. Light emitted by the light source 21 is incident on the bottom surface of the isosceles prism from one of the waist surfaces of the isosceles prism, the light is totally reflected on the contact surface of the bottom surface of the isosceles prism and a sample to be detected, and the light after the total reflection is emergent from the other waist surface of the prism. As a preferred embodiment, the cross sectional shape and size of the prism groove 32 in this embodiment are matched with the shape and size of the bottom surface of the isosceles prism, and the prism groove is tightly connected with the isosceles prism to form a closed prism table, so that the bad phenomenon that the detection precision is affected because the refracted liquid dripped to the bottom surface of the prism flows to the waist surface of the prism in the detection process is effectively prevented. As can be seen from fig. 1 and 2, the prism table 31 of the present embodiment is provided with air suction holes 34, the air suction holes are uniformly distributed on the periphery of the prism groove 32, the lower surface of the prism table, which is matched with the air suction holes 34, is provided with air suction holes 35, an air suction channel is arranged between the upper surface and the lower surface of the prism table, the air suction holes and the air suction holes are connected through the air suction channel, and the air suction holes 35 are connected to an air suction device through an air suction pipeline 36. The air suction device vacuumizes the air between the sample to be detected and the air suction hole 34 through the air suction hole, the air suction channel and the air suction hole, and the triangular prism is positioned in the vacuum surrounded by the air suction hole, so that the sample to be detected can be better attached to the triangular prism, even if the surface of the sample to be detected has certain warping, the sample to be detected can be attached to the triangular prism through the air suction hole 34, and the detection precision and efficiency of the stress meter are improved. In the embodiment, the air suction holes are formed in the prism table, so that the prism table and the air suction table are not required to be arranged respectively, the integral structure of the stress meter is simplified, the size is reduced, the manufacturing cost is reduced, and the stability of the stress meter is improved.
As a preferred embodiment, as shown in fig. 3, a limiting jig 11 is further disposed on the working platen 10 according to this embodiment, the limiting jig 11 is disposed in the extending direction of two adjacent sides of the prism stage 31, a plurality of limiting columns 12 are disposed on a body of the limiting jig 11, and a space for accommodating a sample to be tested is formed by the plurality of limiting columns. The position of the sample to be detected can be limited by the limiting jig, so that the sample to be detected is better matched with the air suction hole, and the detection precision of the invention is improved. This embodiment spacing post 12 be spacing bolt, 11 body upper surfaces of spacing tool are equipped with the spacing screw hole with spacing bolt matched with. The limiting column adopts a mode that the bolt and the threaded hole are matched with each other, the specific position of the limiting column is not limited, and the limiting column can be correspondingly adjusted according to the actual condition of the size of a sample to be detected, so that the application range of the stress meter is expanded. For improving the operation convenience, the body of the limiting jig 11 is further provided with an operation hole 13 which is convenient for taking and placing the sample to be detected. The user moves the sample to be detected to a proper position through the operation hole 13, and after the stress detection is finished, the glass is taken out through the operation hole 9. As can be seen from fig. 3, the limiting jig 11 and the prism table 31 of the present embodiment are further provided with fastening threaded holes 14, and the fastening threaded holes are mutually matched with fastening bolts to fix the limiting jig and the prism table to the working table plate, so that the stability of the stress gauge of the present invention is improved.
Example two
Fig. 2 shows another structure of the stress gauge of the present invention, as shown in fig. 2, a centralized tempered glass surface stress gauge comprises a work table 10, an illumination unit 20, a light refraction unit 30, an imaging unit 40, and an image processing unit (not shown in the figure), wherein the illumination unit and the imaging unit are located below the work table, the light refraction unit is located on the work table and used for placing a sample to be detected, the illumination unit, the light refraction unit and the imaging unit form a light path, the light refraction unit is located in the light emitting direction of the illumination unit, the imaging unit is located at the rear end of the light path, the light emitted by the illumination unit is incident on the sample to be detected on the light refraction unit, the light source enters the imaging unit for imaging after being totally reflected, the imaging unit is connected with the image processing unit, the image processing unit performs calculation processing on an image obtained by the imaging unit, the illumination unit 20 comprises a light source 21 and a light source adjusting mechanism, as can be seen from fig. 4, in the embodiment, the light source adjusting mechanism is that a fixing seat 22 and an adjusting block 23 are arranged below the working table plate 10, the fixing seat 22 is arranged on the lower side of the working table plate 10, one end of the adjusting block 23 is hinged to the fixing seat 22 through a pin shaft 24, the light source 21 is arranged at the other end of the adjusting block 23, and light emitted by the light source 21 is incident into the light refraction unit 30. An adjusting threaded hole which is vertically through is formed in the middle of the adjusting block 23, an adjusting screw 25 is arranged in the adjusting threaded hole, the upper end of the adjusting screw abuts against a support block, the support block provides a power support point for the adjusting block to rotate around a pin shaft, the support block is arranged on the lower side of the working table plate 10, the support block and the working table plate can be integrally formed for production and processing, the support block and the working table plate are integrally formed, the upper end of the adjusting screw 25 abuts against the support block, that is, the upper end of the adjusting screw 25 abuts against the lower side of the working table plate 10, a knob 27 is arranged at the lower end of the adjusting screw, a return spring 28 is arranged between the fixing seat 22 and the adjusting block 23, the return spring 28 can provide force for the adjusting screw 25 to abut against the lower side of the working table plate, the top end of the adjusting screw abuts against the lower side of the working table plate, and the return spring 28 is preferably a tension spring in this embodiment.
As an improvement, as shown in fig. 5 and 6, a linear bearing 230 is disposed on the adjusting block 23 at one end of the light source according to this embodiment, a sliding shaft 231 capable of freely sliding along the linear bearing is disposed in the linear bearing, a light source fixing seat 210 is disposed on the sliding shaft 231, and at least one light source 21 is disposed on the light source fixing seat 210. As shown in fig. 5, in the present embodiment, two light sources 21 are disposed on the light source fixing base 210, and the light sources 21 are LED array light sources. The wavelengths of the two light sources 21 are different from each other, and when the stress tester is used, the light sources with proper wavelengths can be selected according to the actual stress detection situation, so that the application range of the stress tester is expanded, and the flexibility of the stress detection is improved.
Other structures in this embodiment are the same as those in the first embodiment, and are not described herein again.
It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. It should be noted that the technical features of the first embodiment and the second embodiment can be combined with each other, for example, the linear bearing, the sliding shaft, and the light source fixing seat of the second embodiment can also be applied to the first embodiment, which does not limit the protection scope of the present invention, and the object of the present invention has been completely and effectively achieved. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.
Claims (7)
1. The intensive tempered glass surface stress meter is characterized in that the illuminating unit comprises a light source and a light source adjusting mechanism, the light source adjusting mechanism is that a fixing seat and an adjusting block are arranged below the working table plate, the fixing seat is arranged on the lower side of the working table plate, the adjusting block is hinged with the adjusting block through a pin shaft, an adjusting threaded hole which is communicated up and down is arranged on the adjusting block, an adjusting screw rod is arranged in the adjusting threaded hole, one end of the adjusting screw rod is arranged on the top of the fixing seat, a spring is arranged between the adjusting screw rod and the adjusting block, and a return spring is arranged on the adjusting block; the supporting block is arranged on one side of the fixed seat, and the adjusting threaded hole and the light source are respectively positioned on two sides of the pin shaft; the supporting block is arranged on the lower side of the working table plate, one end of the adjusting block is hinged with the fixed seat through a pin shaft, the other end of the adjusting block is provided with a light source, and the adjusting threaded hole is formed in the middle of the adjusting block; the light source device is characterized in that a linear bearing is arranged on the adjusting block at one end of the light source, a sliding shaft capable of freely sliding along the linear bearing is arranged in the linear bearing, a light source fixing seat is arranged on the sliding shaft, and at least one light source is arranged on the light source fixing seat.
2. The intensive tempered glass surface stress gauge of claim 1, wherein the light source is an LED array light source.
3. The intensive tempered glass surface stress gauge according to claim 1, wherein the light refraction unit is a prism table arranged on the working table plate, a prism groove which is through up and down is arranged in the middle of the prism table, a prism is arranged in the prism groove, the sample to be detected is placed on the prism, light emitted by the light source is incident on the sample to be detected through the prism, and the light is transmitted in the sample to be detected and then enters the imaging unit through the prism for imaging.
4. The intensive tempered glass surface stress gauge according to claim 3, wherein the prism is an isosceles prism, the bottom surface of the isosceles prism slightly protrudes from the upper surface of the prism groove, and the sample to be tested is placed on the bottom surface of the isosceles prism.
5. The intensive tempered glass surface stress gauge according to claim 4, wherein the cross-sectional shape and size of the prism groove are matched with those of the bottom surface of the isosceles prism, and the prism groove is closely connected with the isosceles prism to form a closed prism stage.
6. The intensive tempered glass surface stress gauge according to claim 3, wherein the prism table is provided with suction holes which are uniformly distributed on the outer periphery of the prism groove, the lower surface of the prism table which is matched with the suction holes is provided with suction holes, a suction passage is provided between the upper surface and the lower surface of the prism table, the suction holes and the suction holes are connected through the suction passage, and the suction holes are connected with a suction device.
7. The intensive toughened glass surface stress gauge according to claim 4, 5 or 6, wherein a limiting jig is arranged on the working table plate, the limiting jig is arranged in the extending direction of two adjacent sides of the prism table, a plurality of limiting columns are arranged on the limiting jig body, and a space for accommodating a sample to be detected is formed by the plurality of limiting columns in a surrounding manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710127500.5A CN106644204B (en) | 2017-03-06 | 2017-03-06 | Intensive toughened glass surface stress instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710127500.5A CN106644204B (en) | 2017-03-06 | 2017-03-06 | Intensive toughened glass surface stress instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106644204A CN106644204A (en) | 2017-05-10 |
| CN106644204B true CN106644204B (en) | 2022-12-02 |
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| CN107727009B (en) * | 2017-11-06 | 2023-11-24 | 深圳精创视觉科技有限公司 | Quality detection device for mobile phone cover plate glass |
| CN109211449B (en) * | 2018-08-24 | 2020-11-24 | 山东大学 | Fatigue real-time monitoring device for airplane windshield |
| CN115265868B (en) * | 2022-09-29 | 2022-12-16 | 江苏延陵玻璃有限公司 | Heterogeneous vacuum glass surface stress detection device |
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| CN205049270U (en) * | 2015-10-30 | 2016-02-24 | 苏州精创光学仪器有限公司 | Glass stress measuring device is with tool of breathing in |
| CN206583556U (en) * | 2017-03-06 | 2017-10-24 | 苏州精创光学仪器有限公司 | Intensive safety glass surface stress instrument |
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| CN201739832U (en) * | 2010-06-25 | 2011-02-09 | 浙江索臣照明有限公司 | Adjustable intelligent energy-efficient lamp |
| CN103528730A (en) * | 2013-10-18 | 2014-01-22 | 苏州精创光学仪器有限公司 | Microscope type glass surface stress meter |
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| CN106644204A (en) | 2017-05-10 |
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