Magnifier lens thickness measuring device

Abstract

The invention discloses a magnifier lens thickness measuring device, and belongs to the technical field of lens measuring devices, and the device comprises a conveying line which is installed on a frame, extends in a preset direction, and is used for bearing and conveying a lens; the sequential guide mechanism comprises T-shaped rods arranged on the two sides of the top end of the bottom plate, one end of each T-shaped rod is fixed to a U-shaped plate, a first strip-shaped groove and a second strip-shaped groove are formed in the extending sections of the two ends of the U-shaped plate correspondingly, and a first sliding block fixed to an elastic telescopic rod is installed on the inner wall of the first strip-shaped groove; a rotating shaft connected with the blades is installed at the bottom end of the first sliding block through a first fixing rod, and the blades are connected to the rotating shaft in an inserted mode and distributed in an annular array mode. The technical problems that when the thickness of a large number of lenses needs to be measured, accurate data monitoring cannot be carried out on the corresponding lenses due to the working fatigue of personnel, so that the accuracy of thickness measurement data is reduced, and the detection efficiency is low can be solved.

Description

Technical Field

[0001] The invention belongs to the technical field of optical lens thickness measuring devices, and in particular relates to a magnifying glass lens thickness measuring device. Background Art

[0002] A magnifying glass is a simple visual optical device used to observe tiny details of an object. It is a converging lens with a focal length much smaller than the clear vision distance of the eye. A magnifying glass is also called a fire mirror. It is a simple optical instrument that can obtain a magnified virtual image. It usually consists of a convex lens, a frame, and a handle. When using it, place the object close to the back of the lens, and you can see the upright and magnified virtual image, which helps to distinguish details. It is often used to view specimens, drawings, negatives, photos, film copies, etc. Depending on the curvature and the refractive index of the glass used, there are many types of magnifications, such as 10, 20, and 30 times.

[0003] The lens of a magnifying glass is a convex lens. The larger the viewing angle, the larger the image, and the more details of the object can be distinguished. Moving closer to the object can increase the viewing angle, but it is limited by the focusing ability of the eye. Use a magnifying glass, bring it close to the eye, and put the object within its focus to form a positive virtual image. When measuring the thickness of a magnifying glass lens, it is often done manually. However, when a large number of lenses need to be measured, due to the fatigue of the personnel at work, the corresponding lenses cannot be accurately monitored, resulting in a decrease in the accuracy of the thickness measurement data. At the same time, the detection efficiency is low, time-consuming and labor-intensive, and inconvenient for personnel to operate. Summary of the invention

[0004] The purpose of the present invention is to provide a magnifying glass lens thickness measuring device to solve the technical problem that when a large number of lenses need to be measured for thickness, due to the fatigue of the workers at work, the corresponding lenses cannot be accurately monitored, resulting in a decrease in the accuracy of the thickness measurement data and a low detection efficiency.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A magnifying glass lens thickness measuring device, comprising: A conveying line, which is installed on the frame and extends along a preset direction to carry and convey the lenses; A sequential guiding mechanism, the sequential guiding mechanism comprising a T-shaped rod placed on both sides of the top of the bottom plate, one end of the T-shaped rod being fixed on the U-shaped plate, the extension sections at both ends of the U-shaped plate being respectively provided with a first strip groove and a second strip groove, the inner wall of the first strip groove being provided with a first slider fixed on the elastic telescopic rod, the bottom end of the first slider being provided with a rotating shaft connected to the blades through a first fixing rod, the blades being connected to the rotating shaft by plugging and distributed in a ring array, and a partition cavity being formed between adjacent blades; The top of the rotating shaft is integrally formed with a stepped protrusion, the outer wall edge of the stepped protrusion is provided with an annular stepped groove placed on the inner wall of the first fixing rod, and the stepped protrusion is connected to a ball placed on the top of the inner wall of the first fixing rod, and one end of the ball is provided with a limiting plate placed between the stepped protrusion and the inner wall of the first fixing rod, the second strip groove is movably connected to a second slider, and the second slider is movably connected to a first guide wheel through the second fixing rod; The thickness measuring mechanism includes a driving motor fixed on both sides of the top of the frame, the output end of the driving motor passes through the frame and extends to the first screw shaft, the first screw shaft is spirally driven with a first screw nut, one end of the first screw nut extends to the slide groove in the height direction of the frame, and the other end is fixed to the first bracket, and the first brackets are fixedly connected by a thickness measuring pressing plate. Among them, the outer wall of the first screw shaft is connected to the first bevel gear, and both ends of the outer wall of the first bevel gear are meshed and driven with the second bevel gear fixed on the second screw shaft, the first bevel gear and the second bevel gear rotate at the same speed, one end of the second screw shaft is connected to the inner wall of the cover body through a bearing, and the second screw shaft is spirally driven with a second screw nut fixed on the second bracket, one end of the second bracket is connected to a downward extending indicator arrow at a notch along the length direction of the cover body, and a scale line matching the indicator arrow is fixedly installed on the cover body.

[0006] Furthermore, both ends of the outer wall of the T-bar and the U-shaped plate are connected by compression springs, and a guide column fixed at the center of the U-shaped plate is provided between the compression springs. A retaining ring connected to the T-bar is movably connected to the guide column, and a limiting ring fixed on the guide column is in contact and fit with the retaining ring.

[0007] Furthermore, the first sliders are connected by a synchronization component, which includes a box body with an active cavity opened inside, both ends of the box body are fixed to the bottom plate by columns, a central gear is connected to the inner wall of the box body, both ends of the central gear are respectively engaged with a first gear plate and a second gear plate that move in opposite directions, and one end of the first gear plate and the second gear plate are connected to the corresponding first slider.

[0008] Furthermore, openings connected to the first gear plate and the second gear plate extension sections are installed at both ends of the outer wall of the box body, and the transmission ratio between the center gear and the first gear plate is kept the same as the transmission ratio between the center gear and the second gear plate. The first fixed rod and the second fixed rod are connected by a synchronization rod. As the lens is transported on the conveyor line and fits with the blades in sequence, the first fixed rods on both sides move outward at the same time through the synchronization assembly, and under the action of the synchronization rod, the second fixed rod drives the first guide wheel to move synchronously toward the outside of the frame.

[0009] Furthermore, the bottom of the ball is provided with an inwardly recessed rolling groove placed on the stepped protrusion.

[0010] Furthermore, the cover body is fixed to the base plate by an L-shaped bending rod, and a gap is formed between the cover body and the conveying line, and the scale lines on the cover body are symmetrically arranged relative to the center of the first screw shaft.

[0011] Furthermore, the connection between the first bracket and the thickness measuring pressing plate is connected by locking and fixing with a positioning pin, and the direction of the spiral opening on the first screw shaft remains the same.

[0012] Furthermore, the driving motor is a servo motor. When the driving motor is started, the first bracket drives the thickness measuring pressing plate to move up and down, and at the same time, the second bracket drives the indicating arrow to move synchronously on the scale line in the horizontal direction.

[0013] Furthermore, a second guide wheel adapted to the thickness measuring mechanism is connected on the bottom plate close to the thickness measuring mechanism and along the transmission direction of the conveyor line.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: (1) The conveyor line is set up not only to carry and transport the lenses, but also to use the driving force of the conveyor line to complete the automatic sorting work, so that the lenses can be transported one by one. The structural design is reasonable and the integrated performance is strong, which can effectively complete the sorting and guiding work of the lenses on the conveyor line.

[0015] (2) A sequential guiding mechanism is provided. During the conveying process, the lens first contacts and fits with the blade on the rotating shaft. Since the first strip groove on the U-shaped plate is provided with a movable first slider, the first slider can move outward when subjected to a squeezing force, so as to adapt to the conveying and segmenting work of lenses of different sizes. Moreover, with the help of a synchronization component, the rotating shafts at both ends can keep moving synchronously under the meshing transmission of the central gear and the first gear plate and the second gear plate, so as to prevent position deviation during the lens conveying process and ensure the stability of the lens conveying work. At the same time, a compression spring connected to the T-bar is provided on the U-shaped plate to cooperate with a guide column, which can help the sliding member to reset and adjust during the movement, and also can play a role in buffering and adjusting the squeezing force generated by the blade when subjected to lenses of different sizes. In addition, a synchronization rod provided between the first slider and the second slider can drive the first guide wheel to move synchronously, so that the first guide wheel can adaptively guide the spacing of lenses of different lengths, further ensuring that the lenses can be aligned with the thickness measuring mechanism for conveying, with a high degree of automation and improved work efficiency.

[0016] (3) A thickness measuring mechanism is set up, and the driving motor is started. The output shaft of the motor drives the movement of the first screw shaft. With the help of the spiral transmission action, the first bracket on the first screw nut drives the thickness measuring pressing plate to move downward and come into contact with the top surface of the lens. At the same time, the first screw shaft can drive the first bevel gear to rotate when it moves. Through the meshing transmission between the bevel gears, the second screw shaft drives the indicating arrow on the second bracket to move synchronously. In conjunction with the scale lines on the cover body, the thickness data of the lens can be directly obtained by reading the scale. The entire transmission mechanism works stably, effectively utilizes the expanded space area of ​​the conveyor line, is convenient for reading data, is easy to operate manually, has high detection accuracy, effectively simplifies manpower, and improves the application performance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 The structure diagram of a magnifying glass lens thickness measuring device of the present invention is shown in FIG. Figure 1 ; Figure 2 The structure diagram of a magnifying glass lens thickness measuring device of the present invention is shown in FIG. Figure 2 ; Figure 3 It is a front view of a magnifying glass lens thickness measuring device of the present invention; Figure 4 It is a left view of a magnifying glass lens thickness measuring device of the present invention; Figure 5 The present invention Figure 1 A magnified image of point A; Figure 6 The present invention Figure 2 The enlarged view of point B; Figure 7 is a schematic diagram of the connection between the first fixing rod and the rotating shaft of the present invention; Figure 8 It is a structural schematic diagram of the synchronization component of the present invention; Fig. 9 Schematic diagram of meshing transmission between the first bevel gear and the second bevel gear of the present invention; Fig.10 The present invention Figure 1 Enlarged view of point C.

[0019] Figure numerals: 1, conveyor line; 2, sequential guide mechanism; 3, T-bar; 4, U-shaped plate; 5, first strip groove; 6, second strip groove; 7, elastic telescopic rod; 8, first slider; 9, first fixed rod; 10, blade; 11, rotating shaft; 12, stepped protrusion; 13, annular stepped groove; 14, ball bearing; 15, limit plate; 16, second slider; 17, second fixed rod; 18, first guide wheel; 19, thickness measuring mechanism; 20, driving motor; 21, first Screw shaft; 22, first screw nut; 23, first bracket; 24, thickness measuring pressing plate; 25, first bevel gear; 26, second screw shaft; 27, second bevel gear; 28, second bracket; 29, second screw nut; 30, indicator arrow; 31, scale line; 32, compression spring; 33, guide column; 34, retaining ring; 35, synchronization assembly; 36, center gear; 37, first gear plate; 38, second gear plate; 39, synchronization rod; 40, second guide wheel. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Reference Manual Attached Figure 1 As shown, a magnifying glass lens thickness measuring device comprises: Conveying line 1, which is installed on the frame and extends along a preset direction to carry and convey lenses; The sequential guiding mechanism 2 comprises a T-shaped rod 3 disposed on both sides of the top of the bottom plate, one end of the T-shaped rod 3 is fixed on the U-shaped plate 4, and the extension sections at both ends of the U-shaped plate 4 are respectively provided with a first strip groove 5 and a second strip groove 6, and the inner wall of the first strip groove 5 is provided with a first slider 8 fixed on the elastic telescopic rod 7, and the bottom end of the first slider 8 is provided with a rotating shaft 11 connected to the blade 10 through a first fixing rod 9, and the blade 10 is connected to the rotating shaft 11 by plugging and distributed in a ring array, and a partition cavity is formed between adjacent blades 10; Among them, a stepped protrusion 12 is integrally formed and connected to the top of the rotating shaft 11, and an annular stepped groove 13 is provided on the outer wall edge of the stepped protrusion 12 and is placed on the inner wall of the first fixed rod 9, and a ball 14 placed on the top of the inner wall of the first fixed rod 9 is connected to the stepped protrusion 12, and a limiting plate 15 is provided at one end of the ball 14 and is placed between the stepped protrusion 12 and the inner wall of the first fixed rod 9, a second slider 16 is movably connected to the second strip groove 6, and a first guide wheel 18 is movably connected to the second slider 16 through a second fixed rod 17.

[0022] Specifically, the conveyor line 1 can be configured as a conveyor belt connected between transmission rollers, which are connected through a driver transmission, and then the transmission is realized through a chain assembly connected to the rotating teeth on the transmission rollers, thereby completing the circular rotation of the conveyor belt, so that the lenses can be carried and transported. In addition, the connection can also be realized through other transmission roller drive assemblies. The above-mentioned transmission assemblies are conventional technical means for those skilled in the art and will not be described in detail here.

[0023] The conveyor line 1 is not only used to carry and convey the lenses, but also can use the driving force of the conveyor line 1 to complete the automatic sorting work, so that the lenses can be conveyed one by one. The structural design is reasonable and the integrated performance is strong, which can effectively complete the sorting and guiding work of the lenses on the conveyor line 1.

[0024] refer to Figure 1 , Figure 4 , Fig. 9 and Fig.10 , thickness measuring mechanism 19, the thickness measuring mechanism 19 includes a driving motor 20 fixed on both sides of the top of the frame, the output end of the driving motor 20 passes through the frame and extends to the first screw shaft 21, the first screw shaft 21 is spirally driven with a first screw nut 22, one end of the first screw nut 22 extends to the slide groove in the height direction of the frame, and the other end is fixed on the first bracket 23, and the first brackets 23 are fixedly connected by a thickness measuring pressing plate 24, Among them, the outer wall of the first screw shaft 21 is connected to the first bevel gear 25, and both ends of the outer wall of the first bevel gear 25 are meshed with the second bevel gear 27 fixed on the second screw shaft 26. The first bevel gear 25 and the second bevel gear 27 keep rotating at the same speed. One end of the second screw shaft 26 is connected to the inner wall of the cover body through a bearing, and the second screw shaft 26 is spirally driven with a second screw nut 29 fixed on the second bracket 28. One end of the second bracket 28 is connected to a downward extending indicator arrow 30 at a notch along the length direction of the cover body, and a scale line 31 matching the indicator arrow 30 is fixedly installed on the cover body.

[0025] Specifically, compared with directly setting a measuring mechanism on the first bracket 23, the scale line 31 is set in the height direction of the frame. As the first screw shaft 21 rotates, the measuring mechanism connected to the first bracket 23 is driven to move up and down. Although the data can be read directly, once the thickness of the lens is relatively large, or the thickness of the stacked lenses is measured, the height of the frame setting needs to be adaptively adjusted, which is not only not conducive to the improvement of the entire structure of the device, but also reduces the stability of the connection of the structural parts on the frame, thereby bringing corresponding safety hazards and is not conducive to the appearance of the device.

[0026] The technical solution adopts a mechanical transmission conversion method to convert the vertical movement of the first bracket 23 into the horizontal movement of the second bracket 28, and the rotation speeds of the first bevel gear 25 and the second bevel gear 27 remain the same, so that the movement distance can be converted to the indicator arrow 30 in the same period. Since the conveyor line 1 is a strip-shaped open design, the scale lines 31 connected to the cover body can be better distributed in the transmission direction of the conveyor line 1, and through difference calculation, that is, the distance between the scale line 31 and the zero point position is the height difference between the thickness measuring press plate 24 and the bottom surface of the lens. The moving distance of the indicator arrow 30 represents the height difference between the top surface of the thickness measuring press plate 24 and the top surface of the lens. Then, by directly reading the indicator point of the scale line 31 at this time, it is the thickness data of the lens. Moreover, the bottom of the indicator arrow 30 is set in a triangular shape, so the data can be read accurately, thereby improving the accuracy of the data.

[0027] A thickness measuring mechanism 19 is provided, and a driving motor 20 is started. The output shaft of the motor drives the movement of the first screw shaft 21. By means of the spiral transmission, the first bracket 23 on the first screw nut 22 drives the thickness measuring pressing plate 24 to move downward and come into contact with the top surface of the lens. At the same time, the first screw shaft 21 can drive the first bevel gear 25 to rotate when it moves. Through the meshing transmission between the bevel gears, the second screw shaft 26 drives the indicating arrow 30 on the second bracket 28 to move synchronously. In conjunction with the scale line 31 on the cover body, the thickness data of the lens can be directly obtained by reading the scale. The entire transmission mechanism works stably, effectively utilizes the expanded space area of ​​the conveyor line 1, is convenient for reading data, is easy to operate manually, has high detection accuracy, effectively simplifies manpower, and improves the application performance of the device.

[0028] refer to Figure 1 , Figure 5 , Figure 6 , Figure 7 and Figure 8 The two ends of the outer wall of the T-shaped rod 3 and the U-shaped plate 4 are connected by compression springs 32, and a guide column 33 fixed at the center of the U-shaped plate 4 is provided between the compression springs 32. A retaining ring 34 connected to the T-shaped rod 3 is movably connected to the guide column 33, and a limiting ring fixed on the guide column 33 is in contact with and fitted on the retaining ring 34.

[0029] The first sliders 8 are connected by a synchronization component 35, which includes a box body with an active cavity opened inside. Both ends of the box body are fixed to the bottom plate by columns. A central gear 36 is connected to the inner wall of the box body. Both ends of the central gear 36 are respectively engaged with a first gear plate 37 and a second gear plate 38 that move in opposite directions. One end of the first gear plate 37 and the second gear plate 38 are connected to the corresponding first slider 8.

[0030] Openings connected to the extended sections of the first gear plate 37 and the second gear plate 38 are installed at both ends of the outer wall of the box body, and the transmission ratio between the central gear 36 and the first gear plate 37 is kept the same as the transmission ratio between the central gear 36 and the second gear plate 38. The first fixed rod 9 and the second fixed rod 17 are connected by a synchronization rod 39. As the lens is transmitted and transported on the conveyor line 1 and fits with the blades 10 in sequence, the first fixed rods 9 on both sides move outward at the same time through the synchronization assembly 35, and under the action of the synchronization rod 39, the second fixed rod 17 drives the first guide wheel 18 to move synchronously toward the outside of the frame.

[0031] Specifically, a spring rod can be adaptively provided on the inner wall of the elastic telescopic rod 7, that is, a spring rod is provided between the inner wall of the elastic telescopic rod 7 and the fixed part. The setting relationship of the above-mentioned spring rod is relatively simple and obvious to those skilled in the art, so too many drawings are not performed. In this way, after lenses of different sizes are transported in sequence, the blades 10 on the rotating shaft 11 can be helped to return to their original positions. The compression spring 32 provided between the T-shaped rod 3 and the U-shaped plate 4 can transfer the friction resistance to the U-shaped plate 4 when the force applied to the first slider 8 is too large and rapid. In this way, the tightness can be adjusted by the compression spring 32, the force can be buffered, and the U-shaped plate 4 can be assisted to return to its original position. During the movement of the U-shaped plate 4, the guide column 33 provided cooperates with the retaining ring 34 to ensure the accuracy and stability of the movement of the U-shaped plate 4 and prevent the structural parts from shaking.

[0032] An inwardly recessed rolling groove is provided at the bottom of the ball 14 on the stepped protrusion 12. The stepped protrusion 12 on the shaft 11 cooperates with the annular stepped groove 13 to effectively ensure the stability of the movement of the shaft 11 by expanding the contact surface. The stepped setting can also prevent the shaft 11 from deviating from its position during the rolling process. At the same time, the ball 14 arranged inside the first fixed rod 9 helps the shaft 11 to rotate by rolling, which can reduce friction resistance and increase the service life of the structure. At the same time, the inwardly recessed rolling groove on the stepped protrusion 12 can further ensure the stability of the movement of the ball 14, so that it can rotate accurately on the annular track.

[0033] A sequential guiding mechanism 2 is provided. During the conveying process, the lens first contacts and fits with the blade 10 on the rotating shaft 11. Since the first strip groove 5 on the U-shaped plate 4 is provided with a first slider 8 that is movably connected, the first slider 8 can move outward when subjected to a squeezing force, so that it can adapt to the conveying and segmenting work of lenses of different sizes. In addition, with the help of a synchronization component 35, the rotating shafts 11 at both ends can keep moving synchronously under the meshing transmission of the central gear 36, the first gear plate 37 and the second gear plate 38, so that the position deviation can be prevented during the lens conveying process, thereby ensuring the stability of the lens conveying work. The U-shaped plate 4 is provided with a compression spring 32 connected to the T-shaped rod 3 and a guide column 33, which can help the sliding member to reset and adjust during the movement, and can also play a buffering and adjusting role for the extrusion force generated when the blade 10 is subjected to lenses of different sizes. In addition, the synchronization rod 39 arranged between the first slider 8 and the second slider 16 can drive the first guide wheel 18 to move synchronously, so that the first guide wheel 18 can adaptively adjust the spacing guide of lenses of different lengths, further ensuring that the lens can be aligned with the thickness measuring mechanism 19 for transportation, with a high degree of automation and improved work efficiency. Specifically, the cover body is fixed to the base plate by an L-shaped bending rod, and a gap is formed between the cover body and the conveyor line 1. The scale lines 31 on the cover body are symmetrically arranged relative to the center of the first screw shaft 21. The above-mentioned gap setting can ensure the normal movement of the conveyor belt on the conveyor line 1 and avoid interference between structural parts. The connection between the first bracket 23 and the thickness measuring pressing plate 24 is connected by locking and fixing with a locating pin, and the direction of the spiral opening on the first screw shaft 21 remains the same. The driving motor 20 is a servo motor. As the driving motor 20 is started, the first bracket 23 drives the thickness measuring pressing plate 24 to move up and down, and the second bracket 28 drives the indicating arrow 30 to move synchronously on the scale lines 31 in the horizontal direction. A second guide wheel 40 adapted to the thickness measuring mechanism 19 is connected to the base plate near the thickness measuring mechanism 19 and along the transmission direction of the conveyor line 1. The added second guide wheel 40 can play an auxiliary guiding role for the conveyed lenses, which is convenient for the subsequent lens collection work.

[0034] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0035] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A magnifying glass lens thickness measuring device, characterized in that: include: A conveyor line (1), the conveyor line (1) being mounted on a frame and extending along a preset direction, and being used to carry and convey lenses; A sequential guiding mechanism (2), the sequential guiding mechanism (2) comprising a T-shaped rod (3) disposed on both sides of the top of a bottom plate, one end of the T-shaped rod (3) being fixed on a U-shaped plate (4), and the extension sections at both ends of the U-shaped plate (4) being respectively provided with a first strip groove (5) and a second strip groove (6), the inner wall of the first strip groove (5) being provided with a first slider (8) fixed on an elastic telescopic rod (7), the bottom end of the first slider (8) being provided with a rotating shaft (11) connected to a blade (10) via a first fixing rod (9), the blade (10) being connected to the rotating shaft (11) by plugging and being distributed in a ring array, and a partition cavity being formed between adjacent blades (10); The top end of the rotating shaft (11) is integrally formed with a stepped protrusion (12), the outer wall edge of the stepped protrusion (12) is provided with an annular stepped groove (13) disposed on the inner wall of the first fixing rod (9), the stepped protrusion (12) is connected with a ball (14) disposed on the top of the inner wall of the first fixing rod (9), and one end of the ball (14) is provided with a limiting plate (15) disposed between the stepped protrusion (12) and the inner wall of the first fixing rod (9), the second strip groove (6) is movably connected with a second slider (16), and the second slider (16) is movably connected with a first guide wheel (18) via a second fixing rod (17); A thickness measuring mechanism (19), the thickness measuring mechanism (19) comprising a driving motor (20) fixed to both sides of the top end of the frame, the output end of the driving motor (20) passing through the frame and extending to a first screw shaft (21), a first screw nut (22) being spirally driven on the first screw shaft (21), one end of the first screw nut (22) extending to a slide groove in the height direction of the frame, and the other end being fixed to a first bracket (23), and the first brackets (23) being fixedly connected via a thickness measuring pressing plate (24), The outer wall of the first screw shaft (21) is connected to the first bevel gear (25), and both ends of the outer wall of the first bevel gear (25) are meshed with a second bevel gear (27) fixed to the second screw shaft (26). The first bevel gear (25) and the second bevel gear (27) rotate at the same speed. One end of the second screw shaft (26) is connected to the inner wall of the cover body through a bearing, and a second screw nut (29) fixed to a second bracket (28) is spirally driven on the second screw shaft (26). A downwardly extending indication arrow (30) is connected to a notch along the length direction of the cover body at one end of the second bracket (28), and a scale line (31) matching the indication arrow (30) is fixedly mounted on the cover body.

2. A magnifying glass lens thickness measuring device according to claim 1, characterized in that: The two ends of the outer wall of the T-shaped rod (3) and the U-shaped plate (4) are connected via compression springs (32); a guide column (33) fixed at the center of the U-shaped plate (4) is provided between the compression springs (32); a retaining ring (34) connected to the T-shaped rod (3) is movably connected to the guide column (33); and a limiting ring fixed to the guide column (33) is in contact with and in contact with the retaining ring (34).

3. A magnifying glass lens thickness measuring device according to claim 1, characterized in that: The first sliders (8) are connected to each other via a synchronization component (35). The synchronization component (35) comprises a box body with an active cavity provided therein. Both ends of the box body are fixed to a bottom plate via columns. A central gear (36) is connected to the inner wall of the box body. Both ends of the central gear (36) are respectively meshed with a first gear plate (37) and a second gear plate (38) that move in opposite directions. One end of each of the first gear plate (37) and the second gear plate (38) is connected to the corresponding first slider (8).

4. A magnifying glass lens thickness measuring device according to claim 3, characterized in that: Both ends of the outer wall of the box body are provided with openings connected to the extension sections of the first gear plate (37) and the second gear plate (38), and the transmission ratio between the central gear (36) and the first gear plate (37) is the same as the transmission ratio between the central gear (36) and the second gear plate (38). The first fixing rod (9) and the second fixing rod (17) are connected via a synchronization rod (39). As the lens is transmitted and transported on the conveying line (1) and sequentially attached to the blade (10), the first fixing rods (9) on both sides are simultaneously moved outwards via the synchronization assembly (35), and under the action of the synchronization rod (39), the second fixing rod (17) drives the first guide wheel (18) to move synchronously toward the outside of the frame.

5. The magnifying glass lens thickness measuring device according to claim 1, characterized in that: The bottom of the ball (14) is provided with an inwardly recessed rolling groove disposed on the stepped protrusion (12).

6. A magnifying glass lens thickness measuring device according to claim 1, characterized in that: The cover body is fixed to the bottom plate via an L-shaped bending rod, and a gap is formed between the cover body and the conveyor line (1), and the scale lines (31) on the cover body are symmetrically arranged relative to the center of the first screw shaft (21).

7. The magnifying glass lens thickness measuring device according to claim 1, characterized in that: The connection between the first bracket (23) and the thickness measuring pressing plate (24) is connected by means of a positioning pin locking and fixing method, and the direction of the spiral opening on the first screw shaft (21) remains the same.

8. The device for measuring the thickness of a magnifying glass lens according to claim 1, characterized in that: The drive motor (20) is a servo motor. When the drive motor (20) is started, the first bracket (23) drives the thickness measuring pressing plate (24) to move up and down, and at the same time, the second bracket (28) drives the indicating arrow (30) to move synchronously on the scale line (31) in the horizontal direction.

9. The magnifying glass lens thickness measuring device according to claim 1, characterized in that: A second guide wheel (40) adapted to the thickness measuring mechanism (19) is provided on the bottom plate, close to the thickness measuring mechanism (19) and connected along the transmission direction of the conveyor line (1).

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