Glass product optical measurement device and method

Abstract

The invention provides an optical measurement device and method for glass products, and belongs to the technical field of optical measurement, the optical measurement device comprises a workbench, an adsorption disc is mounted in the middle of the workbench, a mounting frame is fixedly connected to the edge of the workbench, the optical measurement device further comprises a large-quantity detection mechanism, a large-quantity detection mechanism and a small-quantity detection mechanism, and the large-quantity detection mechanism is located on the mounting frame; according to the optical measurement device and method for the glass products, circles can be continuously drawn on the surface of the bottom of the beaker for measurement, a preliminary interference fringe image is obtained, the definition and readability of the interference fringe image are improved, and the accuracy of the interference fringe image is improved by finely adjusting the circle drawing track. Track gaps can be effectively compensated, the surface of the bottom of the beaker can be completely covered, beakers of different sizes can be adapted, meanwhile, a measuring instrument can be kept facing the same side all the time, and therefore it is ensured that a laser ray column emits laser at a constant included angle, and errors caused by angle changes are reduced.

Description

Technical Field

[0001] This invention belongs to the field of optical measurement technology, and specifically relates to an optical measurement device and method for glass products. Background Technology

[0002] Glassware, especially laboratory glassware (such as beakers, conical flasks, test tubes, and pipettes), has a low coefficient of thermal expansion, is resistant to sudden temperature changes, and can withstand high temperatures (such as drying in an oven at 105-120℃) and corrosion from strong acids and alkalis. It is suitable for complex chemical reaction environments. After production, glass beakers need to be tested for flatness using optical measuring devices. If there are unevennesses at the bottom of the beaker (such as peak-to-valley values ​​PV > 0.1μm), it will cause light scattering or focusing deviation, reduce imaging resolution, and even cause measurement errors (such as cell counting deviations), affecting the reliability of experimental results. Beakers with insufficient flatness are prone to breakage due to localized thermal stress concentration in high or low temperature environments, threatening the safety of laboratory personnel (such as glass shattering during high-temperature sterilization). Therefore, optical measuring devices can accurately measure the data of laboratory glassware to determine the product qualification rate.

[0003] A patent document (CN119043223B) discloses a glass flatness testing device and method. The testing device includes a working platform and a testing box. The testing box includes a housing, with a laser vertically mounted on the upper part of the housing. A beam shaping system and a CCD camera are installed inside the housing. A through hole is opened at the bottom of the testing box, and a standard glass and a tilt adjustment device are installed at the through hole. The tilt adjustment device can adjust the tilt angle of the standard glass relative to the horizontal plane. Compared with the prior art, the advantages and positive effects of this device are: when using the glass flatness testing device of this device to test the glass, the working platform can be leveled by adjusting the electric telescopic rod three, which can avoid the influence of the horizontal deviation of the working platform on the testing accuracy; when it is necessary to adjust the spacing of the interference fringes, the piston rod of the electric telescopic rod one is controlled to extend or shorten; the change of the interference fringes spacing can adapt to different degrees of protrusions or depressions.

[0004] While the aforementioned patent achieves the goal of improving detection accuracy through horizontal adjustment of the work platform, it cannot solve the problem of insufficient or repeated selection of measurement sampling points, which affects measurement accuracy. In traditional measurement methods, operators usually need to move the beaker to change the sampling point, or the equipment can perform random sampling by adjusting the angle of the laser beam. However, this method often leads to forgetting the previously selected position after multiple adjustments, resulting in repeated or missed sampling. In addition, the sampling quantity of existing measurement devices is limited, which means that the overall measurement accuracy needs to be further improved. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the present invention aims to provide an optical measurement device and method for glass products, effectively solving the problem of insufficient or repeated selection of measurement sampling points, which affects measurement accuracy. In traditional measurement methods, workers usually need to move the beaker to change the sampling point, or the equipment performs random sampling by adjusting the angle of the laser beam. However, this method often leads to forgetting the previously selected position after multiple adjustments, resulting in repeated or missed sampling. In addition, the sampling quantity of existing measurement devices is limited, which means that the overall measurement accuracy needs to be further improved.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an optical measuring device for glass products, comprising a worktable, an adsorption plate mounted in the middle of the worktable, and a mounting frame fixedly connected to the edge of the worktable; further comprising: a multi-quantity detection mechanism located on the mounting frame; and a front observation mechanism connected to the multi-quantity detection mechanism; wherein the multi-quantity detection mechanism includes a measuring instrument located above the adsorption plate, a laser beam column obliquely mounted in the middle of the measuring instrument, a pendulum column rotatably connected to the measuring instrument via a ring, a slider slidingly abutting the top of the pendulum column, a push plate fixedly connected to the side wall of the slider, and a chain rotatably connected to the end of the push plate.

[0007] Preferably, the multiple detection mechanism further includes a sleeve plate that is slidably sleeved on the outer wall of the mounting frame. A horizontal plate is fixedly connected to the side wall of the sleeve plate, and a drive motor is fixedly connected to the top of the horizontal plate. The output end of the drive motor passes through the horizontal plate, and a rotating shaft is fixedly connected to its end.

[0008] Preferably, a first arc-tooth bevel gear is provided on the outside of the rotating shaft. The top of the first arc-tooth bevel gear is fixedly connected to the bottom of the horizontal plate. A protective shell is rotatably connected to the bottom of the horizontal plate. Sliding sleeves are fixedly connected to both sides of the protective shell. A sleeve is rotatably passed through the middle of the rotating shaft. A second arc-tooth bevel gear is fixedly connected to the end side wall of the sleeve. The second arc-tooth bevel gear meshes with the first arc-tooth bevel gear.

[0009] Preferably, a spiral groove rod is slidably fitted into the inner cavity of the sleeve, and the sleeve slides against the groove of the spiral groove rod through a dome protrusion. The outer wall of the spiral groove rod is slidably fitted into the inner cavity of the sleeve. A vertical rod is fixedly connected to one end of the spiral groove rod near the chain, and an E-shaped plate is fixedly connected to the bottom of the vertical rod. The E-shaped plate is rotatably connected to the end of the chain.

[0010] Preferably, the outer walls of the E-shaped plate, chain, and push plate are all slidably connected to a U-shaped shell, the outer wall of the vertical rod slides through the top of the U-shaped shell, a turntable is fixed to the inner side of the U-shaped shell, the bottom of the rotating shaft is fixed to the center of the turntable, a groove is opened at the bottom of the turntable, and the slider is slidably connected in the groove.

[0011] Preferably, the inner cavity of the slider is provided with an opening groove, and the slider is slidably connected to a moving block through the opening groove. A threaded rod is threadedly connected to the middle of the moving block, and both ends of the threaded rod are rotatably connected to the lower side of the slider. A pointer is fixedly connected to the side wall of the swing column, and a millimeter scale is slidably abutted against the top of the pointer, and the millimeter scale is fixedly connected to the side wall of the slider.

[0012] Preferably, the front observation mechanism includes a T-shaped plate fixed to the bottom of the sleeve plate, the bottom of the T-shaped plate has a sliding groove, a stepper motor assembly is installed on the outer side of the sleeve plate, and the side wall of the mounting bracket has a toothed groove.

[0013] Preferably, the T-shaped plate is slidably connected to a curved sliding plate via an L-shaped groove, and a guide rod is fixedly connected to the end of the curved sliding plate.

[0014] Preferably, a fixing sleeve is slidably connected to the outer wall of the guide rod, the side wall of the fixing sleeve is fixed to the measuring instrument, and the fixing sleeve is located below the pendulum column.

[0015] The present invention also proposes a method of using an optical measuring device for glass products, the method comprising the following steps:

[0016] S1. Place the beaker to be tested with its bottom facing up on the adsorption plate, adjust the bottom of the beaker to be within the measurement range of the measuring instrument, fix it by negative pressure adsorption, emit a parallel beam of light through the laser beam column, form an angle after reflection by the beaker, and the reflected light reaches the optical flat. The interference fringe image is acquired by the CCD camera inside the measuring instrument, the data is imported into the computer, and the degree of fringe curvature is analyzed and the surface flatness error is calculated using the interferometer software.

[0017] S2, activate the multi-detection mechanism to change the position of the bottom of the beaker in a spiral motion to perform a multi-point measurement. As the shaft rotates continuously, the first bevel gear, the second bevel gear, and the dome protrusion work together to cause the spiral groove rod to continuously and slowly squeeze and push the chain. Finally, the slider can move at a constant speed from the center to the edge of the turntable, so that the pendulum also moves synchronously. In conjunction with the rotation of the turntable, the pendulum makes a spiral motion, which drives the measuring instrument and the laser beam to move synchronously. The laser also moves in a spiral motion at the bottom of the beaker to perform the measurement.

[0018] S3. After one measurement, a preliminary interference fringe image is obtained. Then, the displacement is precisely adjusted by aligning the pointer with the millimeter scale, thereby fine-tuning the position of the pendulum column. After adjustment, its circular trajectory produces a millimeter-level displacement difference, which makes up for the gap of the previous trajectory and improves the preliminary interference fringe image.

[0019] S4. During the measurement process, the lateral limiter fixed on the guide rod and the guide rod fixed on the guide rod in the L-shaped groove of the T-shaped plate, which slides on the elbow slide rod, ensure that the measuring instrument always faces one side while moving in a spiral motion, so that the laser beam can also maintain the same angle to emit laser.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] (1) The optical measurement device and method for glass products provided by the present invention can continuously draw circles on the bottom surface of a beaker to obtain a preliminary interference fringe image, which improves the clarity and readability of the interference fringe image. By finely adjusting the circle trajectory, the gap of the trajectory can be effectively compensated to achieve comprehensive measurement. It can fully cover the bottom surface of the beaker, ensuring that each area is fully measured. It is suitable for beakers of different sizes. At the same time, the measuring instrument can always be kept facing the same side, thereby ensuring that the laser beam is emitted at a constant angle, reducing the error caused by the angle change.

[0022] (2) This invention, through the coordinated operation of the sleeve, the first arc-tooth bevel gear, the second arc-tooth bevel gear, the chain, the pendulum column, the pointer, and the millimeter scale, enables the laser emission to rotate in a spiral pattern at the bottom of the beaker, effectively increasing the number of detection points. It also allows for fine-tuning of the circular trajectory to compensate for the gaps in the previous trajectory, achieving comprehensive measurement. Specifically, since the turntable rotates synchronously with the rotating shaft, the movement of the slider on the turntable is equivalent to adjusting the rotation radius of the slider. Based on the continuous rotation of the rotating shaft, the mutual linkage of the first arc-tooth bevel gear, the second arc-tooth bevel gear, and the dome protrusion causes the spiral groove rod to continuously and slowly squeeze and push the chain, ultimately enabling the slider to move at a uniform speed from the center to the edge of the turntable. This causes the pendulum column to move synchronously, coordinating with the rotation of the turntable to make the pendulum column perform a spiral circular motion, driving the measuring instrument and the laser beam column to move synchronously, so that the laser also rotates in a spiral pattern at the bottom of the beaker, improving the accuracy of the detection data.

[0023] (3) Through the coordinated operation of the T-shaped plate, guide rod and fixed sleeve, the present invention can ensure that the measuring instrument always faces one side during the detection process, which is convenient for button operation, and can also ensure that the laser beam column emits laser at a constant angle to avoid error. Specifically, when the pendulum drives the measuring instrument to move in a spiral circle, the lateral limit on the fixed sleeve on the guide rod and the longitudinal limit on the guide rod fixed on the elbow slide are fixed, so that the measuring instrument always faces one side while moving in a spiral circle, and the laser beam column located at the bottom of the measuring instrument can also maintain the same angle to emit laser, thus improving the stability of the measurement. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 For the present invention Figure 1 Enlarged view of a portion of point A in the middle;

[0026] Figure 3 This is a schematic diagram of the turntable and U-shaped shell structure of the present invention;

[0027] Figure 4 For the present invention Figure 3 Enlarged view of a section at point B in the middle;

[0028] Figure 5 This is a top view of the structure of the present invention;

[0029] Figure 6 This is a schematic diagram of the horizontal plate and protective shell structure of the present invention;

[0030] Figure 7 This is a schematic diagram of the chain and E-shaped plate structure of the present invention;

[0031] Figure 8 This is a schematic diagram of the rotating shaft and turntable structure of the present invention;

[0032] Figure 9 For the present invention Figure 8 Enlarged view of a section at point C;

[0033] Figure 10 For the present invention Figure 8 Enlarged view of a section at point D;

[0034] Figure 11 This is a schematic diagram of the spiral groove rod and dome protrusion structure of the present invention.

[0035] In the diagram: 100, workbench; 200, suction plate; 300, mounting bracket; 400, multi-quantity detection mechanism; 410, turntable; 420, slider; 430, U-shaped shell; 440, threaded rod; 450, pointer; 460, millimeter scale; 470, pendulum column; 480, measuring instrument; 490, laser beam column; 4100, sleeve; 4110, drive motor; 4120, horizontal plate; 4130, sliding sleeve; 4140, opening slot; 4150, moving block; 4160, ring sleeve; 4170 4180, Slide; 4190, Push plate; 4200, Protective shell; 4210, First arc bevel gear; 4220, Spiral groove rod; 4230, Rotating shaft; 4240, Chain; 4250, Sleeve; 4260, Second arc bevel gear; 4270, Vertical rod; 4270, E-shaped plate; 4280, Dome protrusion; 500, Front observation mechanism; 510, T-shaped plate; 520, Guide rod; 530, Fixing sleeve; 540, Stepper motor assembly; 550, Gear groove; 560, Elbow slide plate; 570, L-shaped groove. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] It should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", and "outer" indicate orientation or positional relationships only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0038] It should be understood that, in the description of the invention, it should be noted that, unless otherwise explicitly specified and limited, the terms “installation,” “connection,” and “linking” should be interpreted broadly.

[0039] Example 1: As Figures 1 to 11 As shown, the present invention provides an optical measuring device for glass products, including a worktable 100, an adsorption plate 200 mounted in the middle of the worktable 100, and a mounting frame 300 fixedly connected to the edge of the worktable 100. It also includes: a quantity detection mechanism 400 located on the mounting frame 300; and a front observation mechanism 500 connected to the quantity detection mechanism 400. The quantity detection mechanism 400 includes a measuring instrument 480 located above the adsorption plate 200. A laser beam column 490 is obliquely mounted in the middle of the measuring instrument 480. The measuring instrument 480 is rotatably connected to a pendulum column 470 via a ring 4160. A slider 420 slides against the top of the pendulum column 470. A push plate 4180 is fixedly connected to the side wall of the slider 420, and a chain 4230 is rotatably connected to the end of the push plate 4180.

[0040] It should be noted that the measuring instrument 480 has an optical flat crystal with a surface flatness PV ≤ 0.03μm at its bottom, forming a wedge-shaped air film. An internal CCD camera captures interference fringe images, and the surface flatness is quantified by the curvature of the laser interference fringes. If the surface to be measured is completely flat, the interference fringes are equally spaced straight lines; the greater the curvature of the fringes, the more pronounced the surface unevenness. A tilted laser beam 490 illuminates the surface with monochromatic light, such as a helium-neon laser with a wavelength of 632.8nm. The light is reflected from the bottom of the beaker to the optical flat crystal. The CCD camera then collects data, which is imported into a computer. Interferometer software is used to analyze the fringe curvature, calculate the surface flatness error, and thus determine the flatness of the beaker bottom.

[0041] The multiple detection mechanism 400 also includes a sleeve plate 4100 that is slidably sleeved on the outer wall of the mounting frame 300. A horizontal plate 4120 is fixedly connected to the side wall of the sleeve plate 4100. A drive motor 4110 is fixedly connected to the top of the horizontal plate 4120. The output end of the drive motor 4110 passes through the horizontal plate 4120 and a rotating shaft 4220 is fixedly connected to its end.

[0042] A first arc-tooth bevel gear 4200 is provided on the outside of the rotating shaft 4220. The top of the first arc-tooth bevel gear 4200 is fixedly connected to the bottom of the horizontal plate 4120. A protective shell 4190 is rotatably connected to the bottom of the horizontal plate 4120. Sliding sleeves 4130 are fixedly connected to both sides of the protective shell 4190. A sleeve 4240 rotatably passes through the middle of the rotating shaft 4220. A second arc-tooth bevel gear 4250 is fixedly connected to the end side wall of the sleeve 4240. The second arc-tooth bevel gear 4250 meshes with the first arc-tooth bevel gear 4200.

[0043] It is easy to understand that during testing, the drive motor 4110 drives the rotating shaft 4220 to rotate, which in turn drives the protective shell 4190 and the sliding sleeve 4130 to rotate synchronously. Since the first spiral bevel gear 4200 is fixed to the horizontal plate 4120, when the second spiral bevel gear 4250 rotates along with it, it can continuously mesh around the surface of the first spiral bevel gear 4200. This causes the second spiral bevel gear 4250 to also rotate on its own while following the rotation of the rotating shaft 4220. The drive motor 4110 is equipped with a reverser to cause it to rotate in the opposite direction and reset all components.

[0044] The inner cavity of the sleeve 4240 is slidably fitted with a helical groove rod 4210. The sleeve 4240 slides against the groove of the helical groove rod 4210 through a dome protrusion 4280. The outer wall of the helical groove rod 4210 is slidably fitted into the inner cavity of the sliding sleeve 4130. A vertical rod 4260 is fixedly connected to one end of the helical groove rod 4210 near the chain 4230. An E-shaped plate 4270 is fixedly connected to the bottom of the vertical rod 4260. The E-shaped plate 4270 is rotatably connected to the end of the chain 4230.

[0045] The outer walls of the E-shaped plate 4270, chain 4230 and push plate 4180 are all slidably connected to a U-shaped shell 430. The outer wall of the vertical rod 4260 slides through the top of the U-shaped shell 430. A turntable 410 is fixedly connected to the inner side of the U-shaped shell 430. The bottom of the rotating shaft 4220 is fixedly connected to the center of the turntable 410. A groove 4170 is opened at the bottom of the turntable 410, and the slider 420 is slidably connected in the groove 4170.

[0046] It should be noted that the sleeve 4240 located in the middle of the rotating shaft 4220 is fixed to the second spiral bevel gear 4250. Therefore, when the second spiral bevel gear 4250 rotates, it can drive the sleeve 4240 to rotate synchronously, thereby pressing the spiral groove rod 4210 along the axial direction of the sleeve 4240 through the dome protrusion 4280 and moving it towards the chain 4230. When the spiral groove rod 4210 moves, it drives the vertical rod 4260 to push the E-shaped plate 4270 towards the chain 4230. Under the limiting action of the U-shaped shell 430, the chain 4230 can bend forward along the U-shaped cavity of the U-shaped shell 430, thereby pressing the push plate 4180 on the lower side of the U-shaped shell 430, causing the push plate 4180 to move axially in the opposite direction to the spiral groove rod 4210. When the push plate 4180 moves, it can squeeze and push the slider 420 to slide within the groove 4170, changing the position of the slider 420 on the turntable 410. Since the turntable 410 rotates synchronously with the rotating shaft 4220, the movement of the slider 420 on the turntable 410 is equivalent to adjusting the rotation radius of the slider 420. According to the continuous rotation of the rotating shaft 4220, through the mutual linkage of the first arc bevel gear 4200, the second arc bevel gear 4250 and the dome protrusion 4280, the spiral groove rod 4210 continuously and slowly squeezes and pushes the chain 4230, finally enabling the slider 420 to move at a constant speed from the center to the edge of the turntable 410, so that the pendulum column 470 also moves synchronously. In conjunction with the rotation of the turntable 410, the pendulum column 470 makes a spiral circular motion, driving the measuring instrument 480 and the laser beam column 490 to move synchronously, so that the laser also moves in a spiral circular motion at the bottom of the beaker, effectively increasing the number of detection points and improving the accuracy of the detection data.

[0047] The inner cavity of the slider 420 is provided with an opening groove 4140. The slider 420 is slidably connected to a moving block 4150 through the opening groove 4140. A threaded rod 440 is threadedly connected to the middle of the moving block 4150. Both ends of the threaded rod 440 are rotatably connected to the lower side of the slider 420. A pointer 450 is fixedly connected to the side wall of the swing column 470. A millimeter scale 460 is slidably abutted against the top of the pointer 450, and the millimeter scale 460 is fixedly connected to the side wall of the slider 420.

[0048] It's easy to understand that the slider 420 adjusts its movement distance along the radius of the turntable 410. Therefore, after the turntable 410 rotates, there may still be gaps between the circular tracks drawn by the pendulum column 470. At this point, the moving block 4150 can be slightly adjusted by rotating the threaded rod 440, and the displacement can be precisely adjusted by aligning the pointer 450 with the millimeter scale 460. This changes the position of the pendulum column 470, resulting in a millimeter-level displacement difference in the adjusted circular track, compensating for the gaps in the previous track, and thus essentially covering the entire area of ​​the bottom of the beaker. This provides sufficient measurement data to further improve the accuracy of the final optical spectrum.

[0049] The front observation mechanism 500 includes a T-shaped plate 510 fixed to the bottom of the sleeve plate 4100. The bottom of the T-shaped plate 510 has a sliding groove 4170. A stepper motor assembly 540 is installed on the outside of the sleeve plate 4100. The side wall of the mounting bracket 300 has a toothed groove 550.

[0050] It should be noted that, based on the height of the beaker, the internal spur gear driven by the stepper motor assembly 540 meshes with the tooth groove 550, thereby moving the entire sleeve 4100 up and down on the outer wall of the mounting bracket 300, adjusting the laser beam column 490 to an appropriate position at the top of the beaker for easy measurement. The T-shaped plate 510 also changes position with the adjustment of the sleeve 4100, ensuring the stability of the measuring instrument 480 and the laser beam column 490.

[0051] The T-shaped plate 510 is slidably connected to the elbow slide plate 560 through the L-shaped groove 570, and the end of the elbow slide plate 560 is fixedly connected to the guide rod 520.

[0052] The outer wall of the guide rod 520 is slidably connected to a fixing sleeve 530. The side wall of the fixing sleeve 530 is fixed to the measuring instrument 480. The fixing sleeve 530 is located below the pendulum column 470.

[0053] It is easy to understand that when the pendulum column 470 drives the measuring instrument 480 to move in a spiral circle, in order to facilitate laser observation, the guide rod 520 is longitudinally limited by the lateral limiting of the fixed sleeve 530 on the guide rod 520, and the elbow slide plate 560 slides in the L-shaped groove 570 of the T-shaped plate 510. Thus, the measuring instrument 480 always faces one side while moving in a spiral circle, and the laser beam column 490 located at the bottom of the measuring instrument 480 and fixed at an angle can also maintain the same angle to emit laser, reducing interference error.

[0054] The present invention also proposes a method of using an optical measuring device for glass products, the method comprising the following steps:

[0055] S1. Place the beaker to be tested with its bottom facing up on the adsorption plate 200. Adjust the bottom of the beaker to be within the measurement range of the measuring instrument 480. Fix it by negative pressure adsorption. A parallel beam is emitted through the laser beam column 490. The beam is reflected by the beaker to form an angle. The reflected light reaches the optical flat. The CCD camera inside the measuring instrument 480 collects the interference fringe image. The data is imported into the computer. The interferometer software is used to analyze the degree of fringe curvature and calculate the surface flatness error.

[0056] S2, the multi-point detection mechanism 400 is activated, causing it to change the position of the bottom of the beaker in a spiral motion to perform a multi-point measurement. According to the continuous rotation of the rotating shaft 4220, through the mutual linkage of the first arc bevel gear 4200, the second arc bevel gear 4250 and the dome protrusion 4280, the spiral groove rod 4210 continuously and slowly squeezes and pushes the chain 4230, so that the slider 420 can move at a constant speed from the center to the edge of the turntable 410, and the pendulum column 470 also moves synchronously. In conjunction with the rotation of the turntable 410, the pendulum column 470 makes a spiral motion, which drives the measuring instrument 480 and the laser beam column 490 to move synchronously, so that the laser also moves in a spiral motion at the bottom of the beaker to perform the measurement.

[0057] S3. After one measurement, a preliminary interference fringe image is obtained. Then, the displacement is precisely adjusted by aligning the pointer 450 with the millimeter scale 460, thereby fine-tuning the position of the pendulum column 470. After adjustment, its circular trajectory produces a millimeter-level displacement difference, which makes up for the gap of the previous trajectory and improves the preliminary interference fringe image.

[0058] S4. During the measurement process, the guide rod 520 is laterally limited by the fixed sleeve 530 on the guide rod 520, and the elbow slide plate 560 slides in the L-shaped groove 570 of the T-shaped plate 510, and the guide rod 520 fixed on the elbow slide plate 560 is longitudinally limited, so that the measuring instrument 480 always faces one side while moving in a spiral circle, and the laser beam column 490 can also maintain the same included angle to emit laser.

[0059] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0060] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An optical measuring device for glass products, comprising a worktable (100), wherein an adsorption plate (200) is mounted in the middle of the worktable (100), and a mounting bracket (300) is fixedly connected to the edge of the worktable (100), characterized in that, Also includes: A multi-quantity testing unit (400) is located on a mounting frame (300); A front observation mechanism (500) is connected to a multi-quantity detection mechanism (400); wherein the multi-quantity detection mechanism (400) includes a measuring instrument (480) located above an adsorption plate (200), a laser beam column (490) is obliquely installed in the middle of the measuring instrument (480), the measuring instrument (480) is rotatably connected to a pendulum column (470) through a ring (4160), a slider (420) is slidably abutted against the top of the pendulum column (470), a push plate (4180) is fixedly connected to the side wall of the slider (420), and a chain (4230) is rotatably connected to the end of the push plate (4180).

2. The optical measuring device for glass products according to claim 1, characterized in that: The multiple detection mechanism (400) further includes a sleeve plate (4100) that is slidably sleeved on the outer wall of the mounting frame (300). A horizontal plate (4120) is fixedly connected to the side wall of the sleeve plate (4100). A drive motor (4110) is fixedly connected to the top of the horizontal plate (4120). The output end of the drive motor (4110) passes through the horizontal plate (4120) and a rotating shaft (4220) is fixedly connected to its end.

3. The optical measuring device for glass products according to claim 2, characterized in that: A first arc-tooth bevel gear (4200) is provided on the outside of the rotating shaft (4220). The top of the first arc-tooth bevel gear (4200) is fixed to the bottom of the horizontal plate (4120). A protective shell (4190) is rotatably connected to the bottom of the horizontal plate (4120). Sliding sleeves (4130) are fixedly connected to both sides of the protective shell (4190). A sleeve (4240) rotatably passes through the middle of the rotating shaft (4220). A second arc-tooth bevel gear (4250) is fixedly connected to the end side wall of the sleeve (4240). The second arc-tooth bevel gear (4250) meshes with the first arc-tooth bevel gear (4200).

4. The optical measuring device for glass products according to claim 3, characterized in that: The inner cavity of the sleeve (4240) is slidably fitted with a helical groove rod (4210). The sleeve (4240) slides against the groove of the helical groove rod (4210) through a dome protrusion (4280). The outer wall of the helical groove rod (4210) is slidably fitted into the inner cavity of the sliding sleeve (4130). A vertical rod (4260) is fixedly connected to one end of the helical groove rod (4210) near the chain (4230). An E-shaped plate (4270) is fixedly connected to the bottom of the vertical rod (4260). The E-shaped plate (4270) is rotatably connected to the end of the chain (4230).

5. The optical measuring device for glass products according to claim 4, characterized in that: The outer walls of the E-shaped plate (4270), chain (4230) and push plate (4180) are all slidably connected to a U-shaped shell (430). The outer wall of the vertical rod (4260) slides through the top of the U-shaped shell (430). A turntable (410) is fixed to the inner side of the U-shaped shell (430). The bottom of the rotating shaft (4220) is fixed to the center of the turntable (410). A groove (4170) is opened at the bottom of the turntable (410), and the slider (420) is slidably connected in the groove (4170).

6. The optical measuring device for glass products according to claim 5, characterized in that: The inner cavity of the slider (420) is provided with an opening groove (4140). The slider (420) is slidably connected to a moving block (4150) through the opening groove (4140). A threaded rod (440) is threadedly connected to the middle of the moving block (4150). Both ends of the threaded rod (440) are rotatably connected to the lower side of the slider (420). A pointer (450) is fixedly connected to the side wall of the swing column (470). The top of the pointer (450) slides against a millimeter scale (460), and the millimeter scale (460) is fixedly connected to the side wall of the slider (420).

7. The optical measuring device for glass products according to claim 6, characterized in that: The front observation mechanism (500) includes a T-shaped plate (510) fixed to the bottom of the sleeve plate (4100), the bottom of the T-shaped plate (510) has a sliding groove (4170), a stepper motor assembly (540) is installed on the outside of the sleeve plate (4100), and the side wall of the mounting bracket (300) has a toothed groove (550).

8. The optical measuring device for glass products according to claim 7, characterized in that: The T-shaped plate (510) is slidably connected to the bent slide plate (560) through the L-shaped groove (570), and the end of the bent slide plate (560) is fixedly connected to the guide rod (520).

9. The optical measuring device for glass products according to claim 8, characterized in that: The outer wall of the guide rod (520) is slidably connected to a fixing sleeve (530), the side wall of the fixing sleeve (530) is fixed to the measuring instrument (480), and the fixing sleeve (530) is located below the pendulum column (470).

10. The method of using the optical measuring device for glass articles according to any one of claims 1-9, characterized in that: The usage method includes the following steps: S1, place the beaker to be tested with its bottom facing up on the adsorption plate (200), adjust the bottom of the beaker to be within the measurement range of the measuring instrument (480), fix it by negative pressure adsorption, emit a parallel beam through the laser beam column (490), form an angle after reflection by the beaker, the reflected light reaches the optical flat, acquire the interference fringe image through the CCD camera inside the measuring instrument (480), import the data into the computer, use the interferometer software to analyze the degree of fringe curvature, and calculate the surface flatness error; S2, activate the multi-point detection mechanism (400) to change the position of the bottom of the beaker in a spiral motion to perform a multi-point measurement. According to the continuous rotation of the rotating shaft (4220), through the mutual linkage of the first arc bevel gear (4200), the second arc bevel gear (4250) and the dome protrusion (4280), the spiral groove rod (4210) continuously and slowly squeezes and pushes the chain (4230), so that the slider (420) can move at a constant speed from the center to the edge of the turntable (410), so that the pendulum (470) also moves synchronously. In coordination with the rotation of the turntable (410), the pendulum (470) makes a spiral motion, which drives the measuring instrument (480) and the laser beam column (490) to move synchronously, so that the laser also moves in a spiral motion at the bottom of the beaker to perform the measurement. S3. After one measurement, the preliminary interference fringe image is obtained. Then, the displacement is precisely adjusted by using the pointer (450) to align with the millimeter scale (460), thereby fine-tuning the position of the pendulum (470). After adjustment, its circular trajectory produces a millimeter-level displacement difference, which makes up for the gap of the previous trajectory and improves the preliminary interference fringe image. S4. During the measurement process, the guide rod (520) is laterally limited by the fixed sleeve (530) on the guide rod (520), and the guide rod (520) fixed on the guide rod (560) is longitudinally limited by the elbow slide plate (560) sliding in the L-shaped groove (570) of the T-shaped plate (510). This ensures that the measuring instrument (480) always faces one side while moving in a spiral circle, so that the laser beam column (490) can also maintain the same angle to emit laser.

Images