Detection equipment for optical lens production and detection method thereof

Abstract

The invention discloses detection equipment for optical lens production and a detection method thereof, and particularly relates to the technical field of optical lenses, the detection equipment comprises a detection machine table and a blank, the detection machine table comprises a horizontally arranged supporting table, and a three-axis moving mechanism is arranged on the supporting table; a rotating mechanism is arranged on the supporting table, the rotating mechanism comprises a rotating suction cup rotationally arranged on the supporting table, the rotating suction cup communicates with an air pump, and a blank is horizontally placed on the rotating suction cup; a centering mechanism is arranged at the mounting end of the three-axis moving mechanism and comprises a contraction positioning assembly. The rotating mechanism is arranged to be matched with the centering mechanism, so that the position of the geometric center of the blank placed on the rotating suction cup can be quickly and accurately determined.

Description

Technical Field

[0001] The present invention relates to the technical field of optical lenses, and more specifically, to a detection device and a detection method for optical lens production. Background Art

[0002] Optical lenses can be divided into several types according to the material of the lens, such as glass, plastic and crystal. Among them, the raw material of crystal lenses is natural quartz crystal. When producing crystal optical lenses, it is necessary to first cut the quartz crystal raw materials into sheet-like primary blanks with uniform thickness and approximately rectangular outline according to their size and shape, and then conduct preliminary screening to remove primary blanks with obvious cracks and defects (such as cracks or defects and extending to close to the center of the primary blanks). These screened sheet-like primary blanks are then cut for a second time into circular sheet blanks with an area slightly larger than that of a single lens product, and then processed into precise lens shapes through grinding, polishing and other processes.

[0003] Since the size and shape of natural quartz crystal raw materials are irregular and non-uniform, it is necessary to draw a circular outline on the primary blank before the secondary cutting of the primary blank. The edge parts outside the outline will be cut off until the shape of the primary blank matches the circular outline. In actual production, a circular outline with the largest radius will be drawn on the primary blank according to the shape and size of each piece of primary blank to improve the utilization efficiency of the primary blank (because the shapes of optical lens products are varied and the sizes are not uniform, when making a certain type of lens, the circular blank with the smallest radius is generally selected within the available range). In this process, it is necessary to first detect the geometric center point of the primary blank, and use this point as the basis for positioning the center of the circular outline.

[0004] In the prior art, the staff can only select templates with similar specifications based on experience to fit the primary blank, and then manually adjust the position of the circular template to gradually determine the position of the center of the circle. After determining the center of the circle, templates of different specifications are used to fit the primary blank with the center of the circle as the reference, and finally a suitable template is selected, and a circular contour line with sufficient redundant space is drawn on the primary blank along the edge of the template. However, in actual production, the position of the center of the circle is generally located by the staff based on experience, and it is difficult to accurately determine the exact position of the true center of the circle on the primary blank, which makes it difficult to draw the circular contour with the largest diameter on the primary blank, thereby increasing the waste of the primary blank. Summary of the invention

[0005] The present invention provides an inspection device and an inspection method for optical lens production, and aims to solve the following problem: in the prior art, the position of the center of a circle on a primary blank is generally located by staff based on experience, and it is difficult to accurately determine the exact position of the true center of the circle on the primary blank, which makes it difficult to draw a circular contour with the largest diameter on the primary blank, thereby increasing the waste of the primary blank.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an inspection device for optical lens production, comprising: an inspection machine and a blank, the inspection machine comprising a horizontally arranged support platform, the support platform being provided with a three-axis moving mechanism; the support platform being provided with a rotating mechanism, the rotating mechanism comprising a rotating suction cup rotatably arranged on the support platform, the rotating suction cup being connected with an air pump, and the blank being horizontally placed on the rotating suction cup; A centering mechanism is provided at the mounting end of the three-axis moving mechanism, and the centering mechanism includes a shrinkage positioning assembly, and the shrinkage positioning assembly includes a horizontally arranged cross guide rail, and four centripetal slides are evenly arranged on the cross guide rail, and the four centripetal slides make synchronous centripetal motion around the axis of the cross guide rail. The centripetal slide includes a shell, and a vertically installed centripetal push rod is provided at the bottom of the shell, and the centripetal push rod is used to abut against the side of the blank.

[0007] In a preferred embodiment, the mounting end of the three-axis moving mechanism is provided with an edge-finding mechanism, which includes a diameter measuring rod, which can move arbitrarily in three-dimensional space, is vertically arranged, and fits with any edge of the blank.

[0008] In a preferred embodiment, a marking mechanism is provided at the mounting end of the three-axis moving mechanism, and the marking mechanism includes a marking pen located above the blank, and the marking pen is used to draw a circle mark on the blank with the center of the upper surface of the rotating suction cup as the center of the circle.

[0009] In a preferred embodiment, a defect detection mechanism is provided at the mounting end of the three-axis moving mechanism, and the defect detection mechanism includes a bracket six, and the bracket six is ​​arranged at the mounting end of the three-axis moving mechanism. A clamping claw assembly is arranged on the bracket six, and the clamping claw assembly includes a clamping seat, and two vertically symmetrical clamping plates are horizontally arranged on the clamping seat, and the clamping plates are adapted to the blank. A driving assembly three is arranged on the clamping seat, and the driving assembly three is used to drive the two clamping plates to move synchronously in the opposite direction in the vertical direction. An airtight detection assembly is arranged on the side where the two clamping plates are close to each other, and the airtight detection assembly includes two air blowing boxes respectively arranged on the corresponding clamping plates, and the two air blowing boxes are symmetrically arranged, and a plurality of independent exhaust slits are opened on the opposite sides of the two air blowing boxes, and the plurality of exhaust slits on one side are closely arranged along a straight line direction from any point on the edge of the rotating suction cup through the center of the upper surface of the rotating suction cup, and the output ends of the exhaust slits are closely fitted with the upper and lower sides of the blank, respectively, and an air pipe interface is provided on any exhaust slit, and any air pipe interface is externally connected to an air supply device.

[0010] In a preferred embodiment, a bracket 1 is provided at the bottom of the support platform, an air pipe is rotatably provided on the bracket 1, the air pipe is connected to the rotating suction cup, the rotating suction cup is hollow, and a plurality of air suction holes are evenly distributed on the top of the rotating suction cup, the air suction end of the air pump is connected to the air pipe, a bracket 2 is provided at the bottom of the bracket 1, a rotating joint is provided in the bracket 2, the rotating joint is located at the connection between the air pipe and the air pump, and the two ends of the rotating joint are respectively adapted to the air pipe and the air pump, and a driving component 1 is provided at the bottom of the bracket 1, and a transmission component is provided between the output end of the driving component 1 and the air pipe.

[0011] In a preferred embodiment, the detection machine includes a cabinet, a support table is fixedly installed on the top of the cabinet, and a support slide rail is arranged on the support table. The three-axis moving mechanism includes a moving component 1, a moving component 2 and a moving component 3. The moving component 1, the moving component 2 and the moving component 3 are movably connected in sequence. The fixed part of the moving component 3 is fixedly connected to the supporting slide rail at the bottom of the side away from the moving component 1. The supporting slide rail is used to support the moving component 3. The movable part of the moving component 3 is provided with a mounting seat, and the mounting seat can move arbitrarily in three-dimensional space. A bracket 3 is arranged on the mounting seat. The cross guide is fixedly arranged on the bracket 3. A rotating disk is arranged on the cross guide. A driving component 2 is arranged on the bracket 3. The driving component 2 is used to drive the rotating disk to rotate. Four arc rods are evenly arranged on the rotating disk. The arc rods are movably connected to the corresponding shell. A slide groove in the same direction as the moving direction of the centripetal push rod is opened at the bottom of the shell. A pressure sensor is arranged on the side of the slide groove away from the center of the cross guide rail. A slider 1 is arranged on the side of the slide groove close to the center of the cross guide rail. The centripetal push rod is fixedly installed at the bottom of the slider 1, and the slider 1 is against the sensing end of the pressure sensor.

[0012] In a preferred embodiment, the bracket four is fixedly mounted on the mounting seat, and a toggle assembly is arranged on the bracket four. The toggle assembly includes a horizontally arranged moving assembly four, and a push plate is arranged on the movable part of the moving assembly four.

[0013] In a preferred embodiment, a diameter-changing assembly is provided on bracket four, and the diameter-changing assembly includes a sliding rod, a sliding block two is provided on the sliding rod, a measuring rod is fixedly installed at the bottom of sliding block two, an elastic traction assembly is provided at one end of the sliding rod, and the other end of the elastic traction assembly is fixedly connected to sliding block two, a push plate extends to a side of sliding block two close to the elastic traction assembly and abuts against sliding block two, and the push plate is used to push sliding block two to move and simultaneously stretch the elastic traction assembly.

[0014] In a preferred embodiment, a bracket five is fixedly mounted on the mounting seat, and a marking pen is detachably mounted on the bracket five, and a marking end of the marking pen abuts against the upper surface of the blank.

[0015] A method for using a detection device for producing optical lenses, comprising the following steps: Step 1: Place the screened quadrilateral sheet blank with a rectangular outline and no obvious cracks or large defects on the surface horizontally on the upper surface of the rotating suction cup, and the blank is in a movable state; Step 2: By synchronously contracting four centripetal push rods around the blank to move the blank to a position where its geometric center is perpendicular to the center point of the upper surface of the rotating suction cup, the position of the initial circle center can be determined, and then the blank is adsorbed and fixed by the rotating suction cup; Step 3: By moving the diameter measuring rod to a preset position and rotating the blank for at least one circle while the edge of the blank is always in contact with the diameter measuring rod, the minimum distance from the edge of the blank to the center point of the rotating suction cup can be detected; Step 4: Move the drawing pen to the preset position of the blank, take the center point of the upper surface of the rotating suction cup as the center of the circle, and take the minimum distance from the edge of the blank to the center point of the rotating suction cup minus the preset redundant length as the radius, and draw the initial circle mark on the upper surface of the blank; Step 5. Move the clamp assembly to the preset position, and use the airtight detection assembly to detect whether there are small defects on the upper and lower sides of the blank within the range of the initial circle mark, as well as the specific location of the defects. The center and radius of the circle can be determined for a second time, and a secondary circle mark can be drawn.

[0016] The beneficial effects of the present invention are: The present invention can quickly and accurately determine the position of the geometric center of the blank placed on the rotating suction cup by arranging a rotating mechanism in conjunction with a centering mechanism; The present invention accurately determines the shortest distance from the geometric center to the edge of the blank by arranging an edge-finding mechanism, and uses a line-drawing mechanism to draw a circle mark of the maximum diameter that can be obtained within the outline range of the blank on the blank with the geometric center as the initial circle center and the shortest distance from the geometric center to the edge of the blank minus a preset redundant length as the radius, so that the circle mark can be used as the outline of the blank for secondary cutting, which significantly improves the line-drawing accuracy and effectively reduces the waste of the blank. The present invention provides a defect detection mechanism so that, on the premise that the initial circle mark has been drawn on the blank, it can detect whether there are smaller defects on the two side surfaces of the blank at the edge of the initial circle mark, and locate the position of the defect, so as to avoid the defect and redraw the secondary circle mark, thereby further improving the yield rate of optical lens production. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the present invention.

[0018] Figure 2 It is a schematic structural diagram of the three-axis moving mechanism part of the present invention.

[0019] Figure 3 It is a schematic structural diagram of the rotating mechanism part of the present invention.

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the present invention in a front view.

[0021] Figure 5 It is a structural schematic diagram of the centering mechanism part of the present invention.

[0022] Figure 6 It is a schematic diagram of the exploded structure of the centering mechanism part of the present invention.

[0023] Figure 7 It is a bottom view structural schematic diagram of the centering mechanism part of the present invention.

[0024] Figure 8 It is a schematic structural diagram of part A of the present invention.

[0025] Fig. 9 It is a structural schematic diagram of the edge-finding mechanism part of the present invention.

[0026] Fig.10 It is a structural schematic diagram of the line drawing mechanism part of the present invention.

[0027] Fig.11 It is a schematic diagram of the structure of the defect detection mechanism part of the present invention.

[0028] Fig.12 It is a schematic structural diagram of the airtight detection component part of the present invention.

[0029] Fig.13 It is a schematic cross-sectional structure diagram of the airtight detection component part of the present invention.

[0030] Fig.14 It is a schematic diagram of the double circle marking positioning of the present invention.

[0031] Fig.15 This is a flow chart of the method of using the detection equipment for optical lens production of the present invention.

[0032] The accompanying drawings are marked as follows: 1, testing machine; 11, cabinet; 12, support table; 13, support slide rail; 2, three-axis moving mechanism; 21, moving component one; 22, moving component two; 23, moving component three; 24, mounting seat; 3, rotating mechanism; 31, bracket one; 32, air pipe; 33, rotating suction cup; 34, vacuum pump; 35, bracket two; 36, driving component one; 37, transmission component; 4, centering mechanism; 41, bracket three; 42, contraction positioning component; 421, cross guide rail; 422, rotating disk; 423, arc rod; 424, centripetal slide; 4241, shell; 4242, slide groove; 4243, slider one; 4 244. Centripetal push rod; 4245. Pressure sensor; 43. Drive component two; 5. Edge-finding mechanism; 51. Bracket four; 52. Toggle component; 521. Moving component four; 522. Push plate; 53. Variable diameter component; 531. Sliding rod; 532. Sliding block two; 533. Diameter measuring rod; 534. Elastic traction component; 6. Line drawing mechanism; 61. Bracket five; 62. Line drawing pen; 7. Defect detection mechanism; 71. Bracket six; 72. Clamping jaw assembly; 721. Clamping seat; 722. Clamping plate; 723. Drive component three; 73. Airtight detection component; 731. Air blowing box; 732. Exhaust seam; 733. Air pipe interface; 8. Blank material. DETAILED DESCRIPTION

[0033] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0034] Refer to the instruction manual Figures 1 to 8 , an inspection device for optical lens production, comprising: an inspection machine 1 and a blank 8, the inspection machine 1 comprising a horizontally arranged support platform 12, on which a three-axis moving mechanism 2 is arranged; a rotating mechanism 3 is arranged on the support platform 12, the rotating mechanism 3 comprises a rotating suction cup 33 rotatably arranged on the support platform 12, the rotating suction cup 33 is connected to an air pump 34, and the blank 8 is horizontally placed on the rotating suction cup 33; The mounting end of the three-axis moving mechanism 2 is provided with a centering mechanism 4, and the centering mechanism 4 includes a shrinkage positioning assembly 42, and the shrinkage positioning assembly 42 includes a horizontally arranged cross guide 421, and four centripetal slides 424 are evenly arranged on the cross guide 421, and the four centripetal slides 424 perform synchronous centripetal motion with the axis of the cross guide 421 as the center, and the centripetal slide 424 includes a shell 4241, and a vertically installed centripetal push rod 4244 is provided at the bottom of the shell 4241, and the centripetal push rod 4244 is used to abut against the side of the blank 8; It should be noted that the rotating suction cup 33 can be selected to have a suitable size according to actual conditions to ensure that the maximum outer diameter of the rotating suction cup 33 is smaller than the minimum outer diameter of the blank 8, and on this basis, when the blank 8 is placed on the rotating suction cup 33, a sufficient distance is reserved between the maximum outer diameter edge of the rotating suction cup 33 and the minimum outer diameter edge of the blank 8 to avoid interference with the use of the air blowing box 731; Further, in the initial state, the blank 8 is in a freely sliding state when it is just placed on the rotating suction cup 33; In this embodiment, the implementation scenario is specifically as follows: first, a quadrilateral sheet stock 8 with a rectangular outline that has been screened and has no obvious cracks or large defects on the surface is horizontally placed on the upper surface of the rotating suction cup 33, and the stock 8 is in a movable state; Then, the cross guide 421 is driven to move to the top of the rotating suction cup 33 through the three-axis moving mechanism 2, and the four centripetal push rods 4244 are respectively located around the blank 8. At this time, the central axis of the cross guide 421 is perpendicular to the center point of the upper surface of the rotating suction cup 33, and then the four centripetal push rods 4244 are synchronously contracted. Any centripetal push rod 4244 can push the blank 8 to move on the rotating suction cup 33. When the four pressure sensors 4245 all detect pressure values ​​within the preset range, the blank 8 is pushed to the center position of the rotating suction cup 33. At this time, the initial center of the circle is located, and the vacuum pump 34 can be started to adsorb and fix the blank 8. Next, the bracket 51 is driven to move to a preset position above the rotating suction cup 33. At this time, the elastic traction component 534 is stretched to the maximum stretching distance, and the diameter measuring rod 533 is located on one side of the blank 8. Then the push plate 522 is slowly moved. The diameter measuring rod 533 moves toward the center point of the upper surface of the rotating suction cup 33 due to the pulling force of the elastic traction component 534. After the push plate 522 moves to the position of the minimum range of the diameter measuring rod 533, the rotating suction cup 33 drives the blank 8 to rotate at least one circle while the edge and the diameter measuring rod 533 are always kept in contact with each other, so that the minimum distance from the edge of the blank 8 to the center point of the rotating suction cup 33 can be detected. Move the marker pen 62 to a preset position above the blank 8, and then draw a first circle mark on the upper surface of the blank 8 with the center point of the upper surface of the rotating suction cup 33 as the center, using the minimum distance recorded previously minus the preset redundant length as the radius; The clamping jaw assembly 72 is moved to a preset position so that the blank 8 is located in the middle position of the two driving assemblies 3 723, and the circular outline of the initial circle mark is used as the edge to drive the air blowing box 731 to move toward the center point of the rotating suction cup 33, until the exhaust slit 732 on the air blowing box 731, which is farthest from the center point of the rotating suction cup 33, moves to the outer edge position of the circular outline of the initial circle mark on the blank 8, and then the two air blowing boxes 731 are driven to approach synchronously through the clamping plate 722, until the exhaust slits 732 on the two air blowing boxes 731 are respectively tightly fitted with the upper and lower side surfaces of the blank 8, and the air is inflated into the air blowing box 731 to a preset air pressure range through an external air supply device, and then the blank 8 is slowly rotated for at least one week, and the air pressure sensing module is used to monitor whether there is deflation, so as to detect whether there are smaller defects on the upper and lower sides of the blank 8 within the range of the initial circle mark, and the specific location of the defects, and then the secondary center and secondary radius are re-determined, so that the secondary circle mark is drawn.

[0035] Refer to the instruction manual Figure 2 and attached Fig. 9 In this embodiment, the mounting end of the three-axis moving mechanism 2 is provided with an edge-finding mechanism 5, and the edge-finding mechanism 5 includes a diameter measuring rod 533. The diameter measuring rod 533 can be moved arbitrarily in three-dimensional space. The diameter measuring rod 533 is vertically arranged, and the diameter measuring rod 533 is in contact with any edge of the blank 8.

[0036] It should be noted that the diameter measuring rod 533 can be selected to have a suitable size according to actual conditions.

[0037] Refer to the instruction manual Figure 2 and attached Fig.10 In this embodiment, a marking mechanism 6 is provided at the mounting end of the three-axis moving mechanism 2. The marking mechanism 6 includes a marking pen 62 located above the blank 8. The marking pen 62 is used to draw a circle mark on the blank 8 with the center of the upper surface of the rotating suction cup 33 as the center of the circle.

[0038] The marking mechanism 6 includes a marking pen 62 located above the blank 8 , and the marking pen 62 is used to draw a circle mark on the blank 8 with the center of the upper surface of the rotating suction cup 33 as the center of the circle.

[0039] It should be noted that when no minor defects are detected on the upper and lower surfaces of the blank 8 within the circle mark range, the circle mark drawn for the first time can be used as the outline of the maximum diameter product that can be taken out of the blank 8. When defects are detected, it is necessary to draw the circle mark a second time.

[0040] Refer to the instruction manual Figure 4 , Attachment Fig.11 , Attachment Fig.12 and attached Fig.13In this embodiment, a defect detection mechanism 7 is provided at the mounting end of the three-axis moving mechanism 2. The defect detection mechanism 7 includes a bracket 6 71. The bracket 6 71 is provided at the mounting end of the three-axis moving mechanism 2. A clamping claw assembly 72 is provided on the bracket 6 71. The clamping claw assembly 72 includes a clamping seat 721. Two vertically symmetrical clamping plates 722 are horizontally provided on the clamping seat 721. The clamping plates 722 are adapted to the blank 8. A driving assembly 3 723 is provided on the clamping seat 721. The driving assembly 3 723 is used to drive the two clamping plates 722 to move synchronously in the opposite direction in the vertical direction. An airtight seal is provided on the side where the two clamping plates 722 are close to each other. The detection component 73, the airtight detection component 73 includes two air blowing boxes 731 respectively arranged on the corresponding clamping plates 722, the two air blowing boxes 731 are symmetrically arranged, and a plurality of independent exhaust slits 732 are opened on the opposite sides of the two air blowing boxes 731, and the plurality of exhaust slits 732 located on one side are closely arranged along a straight line direction from any point on the edge of the rotating suction cup 33 through the center of the upper surface of the rotating suction cup 33, and the output ends of the exhaust slits 732 are closely fitted with the upper and lower sides of the blank 8 respectively, and an air pipe interface 733 is provided on any exhaust slit 732, and any air pipe interface 733 is externally connected to an air supply device.

[0041] It should be noted that the structure (not shown in the drawings) for driving the two clamping plates 722 to move synchronously and reversely on the clamping seat 721 is a technology well known to those skilled in the art and will not be described in detail in the present invention. Furthermore, each exhaust slit 732 is an independent pipeline, and the air pipe interface 733 connected to each exhaust slit 732 is also an independent air supply; Furthermore, each air supply device connected to the air pipe interface 733 is installed with an independent air pressure sensing module, and the width of each exhaust gap 732 is known and equal. By monitoring whether all the air pressure sensing modules sense air leakage, it is possible to detect whether there are defects at any edge of the upper and lower sides of the blank 8, as well as the specific location of the defect.

[0042] Refer to the instruction manual Figure 3 and Figure 4 In the present embodiment, a bracket 31 is provided at the bottom of the support platform 12, an air pipe 32 is rotatably provided on the bracket 31, the air pipe 32 is connected with a rotating suction cup 33, the rotating suction cup 33 is hollow, and a plurality of suction holes are evenly distributed on the top of the rotating suction cup 33, the suction end of the suction pump 34 is connected with the air pipe 32, a bracket 2 35 is provided at the bottom of the bracket 31, a rotary joint is provided in the bracket 2 35, the rotary joint is located at the connection between the air pipe 32 and the suction pump 34, and the two ends of the rotary joint are respectively matched with the air pipe 32 and the suction pump 34, a driving component 36 is provided at the bottom of the bracket 31, and a transmission component 37 is provided between the output end of the driving component 36 and the air pipe 32.

[0043] It should be noted that the rotating suction cup 33 can be replaced by other devices with similar functions known to those skilled in the art according to actual conditions; Furthermore, the transmission assembly 37 is a synchronous belt structure, which may also be replaced by a gear structure or other devices with similar functions known to those skilled in the art.

[0044] Refer to the instruction manual Figure 3 To Attachment Figure 8 In this embodiment, the detection machine 1 includes a cabinet 11, a support platform 12 is fixedly installed on the top of the cabinet 11, and a support rail 13 is arranged on the support platform 12, and the three-axis moving mechanism 2 includes a moving component 1 21, a moving component 22 and a moving component 3 23, and the moving component 1 21, the moving component 22 and the moving component 3 23 are movably connected in sequence, and the fixed part of the moving component 3 23 is away from the bottom of the side of the moving component 1 21 and is fixedly connected to the support rail 13, and the support rail 13 is used to support the moving component 3 23, and the movable part of the moving component 3 23 is provided with a mounting seat 24, and the mounting seat 24 can be moved arbitrarily in a three-dimensional space, and a bracket 3 41 is arranged on the mounting seat 24, and a cross guide rail 421 is fixedly arranged on the bracket 3 41, and the cross guide rail 421 is fixedly arranged on the bracket 3 41. A rotating disk 422 is arranged on the guide rail 421, and a driving component 2 43 is arranged on the bracket 3 41. The driving component 2 43 is used to drive the rotating disk 422 to rotate. Four arc rods 423 are evenly arranged on the rotating disk 422. The arc rods 423 are movably connected with the corresponding shell 4241. A sliding groove 4242 in the same direction as the moving direction of the centripetal push rod 4244 is opened at the bottom of the shell 4241. A pressure sensor 4245 is arranged on the side of the sliding groove 4242 away from the center of the cross guide rail 421, and a slider 1 4243 is arranged on the side of the sliding groove 4242 close to the center of the cross guide rail 421. The centripetal push rod 4244 is fixedly installed at the bottom of the slider 1 4243, and the slider 1 4243 is abutted against the sensing end of the pressure sensor 4245.

[0045] It should be noted that the moving component 1 21, the moving component 22 and the moving component 3 23 are all linear motors, and can also be replaced by other devices with similar functions known to those skilled in the art according to actual conditions; Furthermore, before the four pressure sensors 4245 all sense the pressure values ​​within the preset range, any one of the centripetal push rods 4244 that contacts the blank 8 can push the blank 8 to move freely on the rotating suction cup 33; Refer to the instruction manual Figure 4 and Fig. 9 In this embodiment, the bracket four 51 is fixedly mounted on the mounting base 24, and a toggle assembly 52 is provided on the bracket four 51. The toggle assembly 52 includes a horizontally arranged moving assembly four 521, and a push plate 522 is provided on the movable portion of the moving assembly four 521.

[0046] It should be noted that the moving component 4 521 is a linear motor, which can also be replaced by other devices with similar functions known to those skilled in the art; Refer to the instruction manual Figure 3 and Fig. 9 In this embodiment, a diameter-changing component 53 is provided on the bracket four 51, and the diameter-changing component 53 includes a sliding rod 531, and a sliding block two 532 is provided on the sliding rod 531. The measuring rod 533 is fixedly installed at the bottom of the sliding block two 532. An elastic traction component 534 is provided at one end of the sliding rod 531, and the other end of the elastic traction component 534 is fixedly connected to the sliding block two 532. The push plate 522 extends to the side of the sliding block two 532 close to the elastic traction component 534 and abuts against the sliding block two 532. The push plate 522 is used to push the sliding block two 532 to move and simultaneously stretch the elastic traction component 534.

[0047] It should be noted that a grating scale and a magnetic scale (not shown in the drawings) or other devices with similar functions known to those skilled in the art may be provided on the bracket four 51.

[0048] Refer to the instruction manual Figure 4 and Fig.10 In the present embodiment, a bracket 5 61 is fixedly mounted on the mounting seat 24 , and a marking pen 62 is detachably mounted on the bracket 5 61 , and a marking end of the marking pen 62 abuts against the upper surface of the blank 8 .

[0049] It should be noted that a plurality of line drawing pens 62 can be provided (not shown in the drawings), and the line drawing colors of each line drawing pen 62 are different, so that there is a difference in color between the two line drawings, which is more convenient for subsequent operations.

[0050] In addition, based on the above detection equipment, this embodiment also provides a method for using the detection equipment for optical lens production, refer to the attached manual Fig.14 and attached Fig.15 , including the following steps: Step 1: Place the screened quadrilateral sheet stock 8 with a rectangular outline and no obvious cracks or large defects on the surface horizontally on the upper surface of the rotating suction cup 33, and the stock 8 is in a movable state; Step 2: by synchronously contracting the four centripetal push rods 4244 around the blank 8, the blank 8 is moved to a position where its geometric center is perpendicular to the center point of the upper surface of the rotating suction cup 33, the position of the initial circle center can be determined, and then the blank 8 is adsorbed and fixed by the rotating suction cup 33; Step 3: By moving the diameter measuring rod 533 to a preset position and rotating the blank 8 at least one circle while the edge and the diameter measuring rod 533 are always in contact with each other, the minimum distance from the edge of the blank 8 to the center point of the rotating suction cup 33 can be detected; Step 4: Move the marker pen 62 to a preset position of the blank 8, take the center point of the upper surface of the rotating suction cup 33 as the center of the circle, and take the minimum distance from the edge of the blank 8 to the center point of the rotating suction cup 33 minus the preset redundant length as the radius to draw a first circle mark on the upper surface of the blank 8; Step 5: Move the clamping jaw assembly 72 to the preset position, and use the airtight detection assembly 73 to detect whether there are small defects on the upper and lower sides of the blank 8 within the range of the initial circle mark, as well as the specific location of the defects, so as to determine the center and radius of the circle for a second time and draw a secondary circle mark.

[0051] It should be noted that in the instruction manual Fig.14 In the figure, o1 is the center of the primary circle mark, o2 is the center of the secondary circle mark, C1 is the contour line of the primary circle mark, C2 is the contour line of the secondary circle mark, P is the preset redundant distance length, Y is the length of the partial straight line connecting o1 in the defect on the upper and lower surfaces of the blank 8 closest to the center point of the rotating suction cup 33, r is the radius of the primary circle mark, rY / 2 is the radius of the secondary circle mark, and Y / 2 is the straight-line distance from o1 to o2.

[0052] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims

1. An optical lens production testing device, comprising: A detection machine (1) and a blank (8), wherein the detection machine (1) comprises a horizontally arranged support platform (12), and a three-axis moving mechanism (2) is arranged on the support platform (12); the feature is that a rotating mechanism (3) is arranged on the support platform (12), and the rotating mechanism (3) comprises a rotating suction cup (33) rotatably arranged on the support platform (12), and the rotating suction cup (33) is connected to an air pump (34), and the blank (8) is horizontally placed on the rotating suction cup (33); A centering mechanism (4) is provided at the mounting end of the three-axis moving mechanism (2), the centering mechanism (4) comprising a shrinkage positioning assembly (42), the shrinkage positioning assembly (42) comprising a horizontally arranged cross guide rail (421), four centripetal slides (424) being evenly arranged on the cross guide rail (421), and the four centripetal slides (424) performing synchronous centripetal motion around the axis of the cross guide rail (421), the centripetal slides (424) comprising a shell (4241), a vertically installed centripetal push rod (4244) being provided at the bottom of the shell (4241), the centripetal push rod (4244) being used to abut against the side of the blank (8).

2. The optical lens production detection equipment according to claim 1, characterized in that: An edge-finding mechanism (5) is provided at the mounting end of the three-axis moving mechanism (2). The edge-finding mechanism (5) comprises a diameter measuring rod (533). The diameter measuring rod (533) can move arbitrarily in a three-dimensional space. The diameter measuring rod (533) is vertically arranged, and the diameter measuring rod (533) is in contact with any edge of the blank (8).

3. The optical lens production detection equipment according to claim 2, characterized in that: A marking mechanism (6) is provided at the mounting end of the three-axis moving mechanism (2), the marking mechanism (6) comprising a marking pen (62) located above the blank (8), the marking pen (62) being used to draw a circle mark on the blank (8) with the center of the upper surface of the rotating suction cup (33) as the center of the circle.

4. The optical lens production detection equipment according to claim 3, characterized in that: A defect detection mechanism (7) is arranged at the mounting end of the three-axis moving mechanism (2), the defect detection mechanism (7) comprising a bracket six (71), the bracket six (71) being arranged at the mounting end of the three-axis moving mechanism (2), a clamping claw assembly (72) being arranged on the bracket six (71), the clamping claw assembly (72) comprising a clamping seat (721), two clamping plates (722) being arranged horizontally on the clamping seat (721) and being symmetrical in upper and lower directions, the clamping plates (722) being adapted to the blank (8), and a driving assembly three (723) being arranged on the clamping seat (721), the driving assembly three (723) being used to drive the two clamping plates (722) to move synchronously in opposite directions in the vertical direction, the two clamping plates (722) being close to each other on one side. An airtight detection component (73) is provided, the airtight detection component (73) comprising two air blowing boxes (731) respectively arranged on corresponding clamping plates (722), the two air blowing boxes (731) are symmetrically arranged, and opposite sides of the two air blowing boxes (731) are each provided with a plurality of independent exhaust slits (732), the plurality of exhaust slits (732) located on one side are closely arranged along a straight line from any point on the edge of the rotating suction cup (33) through the center of the upper surface of the rotating suction cup (33), the output ends of the exhaust slits (732) are respectively closely fitted with the upper and lower sides of the blank (8), any exhaust slit (732) is provided with an air pipe interface (733), and any air pipe interface (733) is externally connected to an air supply device.

5. The optical lens production detection equipment according to claim 4, characterized in that: A bracket 1 (31) is provided at the bottom of the support platform (12). An air pipe (32) is rotatably provided on the bracket 1 (31). The air pipe (32) is connected to a rotating suction cup (33). The rotating suction cup (33) is hollow and has a plurality of air extraction holes evenly distributed on the top of the rotating suction cup (33). The air extraction end of the air extraction pump (34) is connected to the air pipe (32). A bracket 2 (35) is provided at the bottom of the bracket 1 (31). A rotating joint is provided in the bracket 2 (35). The rotating joint is located at the connection between the air pipe (32) and the air extraction pump (34), and the two ends of the rotating joint are respectively matched with the air pipe (32) and the air extraction pump (34). A driving component 1 (36) is provided at the bottom of the bracket 1 (31). A transmission component (37) is provided between the output end of the driving component 1 (36) and the air pipe (32).

6. The optical lens production testing equipment according to claim 5, characterized in that: The detection machine (1) comprises a cabinet (11), the support platform (12) is fixedly mounted on the top of the cabinet (11), and a support slide rail (13) is arranged on the support platform (12), the three-axis moving mechanism (2) comprises a moving component 1 (21), a moving component 2 (22) and a moving component 3 (23), the moving component 1 (21), the moving component 2 (22) and the moving component 3 (23) are movably connected in sequence, the fixed part of the moving component 3 (23) is fixedly connected to the support slide rail (13) at the bottom of a side away from the moving component 1 (21), the support slide rail (13) is used to support the moving component 3 (23), the movable part of the moving component 3 (23) is provided with a mounting seat (24), the mounting seat (24) can be moved arbitrarily in three-dimensional space, a bracket 3 (41) is arranged on the mounting seat (24), a cross guide rail (421) is fixedly arranged on the bracket 3 (41), the cross guide rail (421) is fixedly arranged on the bracket 3 (41), and the cross guide rail (421) is fixedly arranged on the bracket 3 (41). A rotating disk (422) is arranged on the cross guide rail (421), and a driving assembly (2) (43) is arranged on the bracket (41). The driving assembly (2) (43) is used to drive the rotating disk (422) to rotate. Four arc rods (423) are evenly arranged on the rotating disk (422). The arc rods (423) are movably connected to the corresponding shell (4241). A slide groove (4242) in the same direction as the moving direction of the centripetal push rod (4244) is opened at the bottom of the shell (4241). A pressure sensor (4245) is arranged on the side of the slide groove (4242) away from the center of the cross guide rail (421). A slider (4243) is arranged on the side of the slide groove (4242) close to the center of the cross guide rail (421). The centripetal push rod (4244) is fixedly installed at the bottom of the slider (4243), and the slider (4243) is abutted against the sensing end of the pressure sensor (4245).

7. The optical lens production detection equipment according to claim 6, characterized in that: Bracket four (51) is fixedly mounted on the mounting seat (24), and a toggle assembly (52) is arranged on the bracket four (51), wherein the toggle assembly (52) comprises a horizontally arranged moving assembly four (521), and a push plate (522) is arranged on the movable part of the moving assembly four (521).

8. The optical lens production inspection equipment according to claim 7, characterized in that: The bracket four (51) is provided with a diameter-changing component (53), and the diameter-changing component (53) includes a sliding rod (531), and a sliding block two (532) is provided on the sliding rod (531). The diameter-measuring rod (533) is fixedly installed at the bottom of the sliding block two (532). An elastic traction component (534) is provided at one end of the sliding rod (531), and the other end of the elastic traction component (534) is fixedly connected to the sliding block two (532). The push plate (522) extends to a side of the sliding block two (532) close to the elastic traction component (534) and abuts against the sliding block two (532). The push plate (522) is used to push the sliding block two (532) to move and simultaneously stretch the elastic traction component (534).

9. The optical lens production inspection equipment according to claim 8, characterized in that: A bracket five (61) is fixedly mounted on the mounting seat (24), and a marking pen (62) is detachably mounted on the bracket five (61), and a marking end of the marking pen (62) abuts against the upper surface of the blank (8).

10. A method for using a testing device for producing optical lenses, characterized in that: The following steps are involved: Step 1: Place the screened quadrilateral sheet stock (8) with a rectangular outline and no obvious cracks or large defects on the surface horizontally on the upper surface of the rotating suction cup (33), and the stock (8) is in a movable state; Step 2: by synchronously contracting four centripetal push rods (4244) around the blank (8), the blank (8) is moved to a position where its geometric center is perpendicular to the center point of the upper surface of the rotating suction cup (33), so as to determine the position of the initial circle center, and then the blank (8) is adsorbed and fixed by the rotating suction cup (33); Step 3: By moving the diameter measuring rod (533) to a preset position and rotating the blank (8) for at least one revolution while the edge of the blank (8) is always in contact with the diameter measuring rod (533), the minimum distance from the edge of the blank (8) to the center point of the rotating suction cup (33) can be detected; Step 4: Move the marker pen (62) to a preset position of the blank (8), take the center point of the upper surface of the rotating suction cup (33) as the center of the circle, and take the minimum distance from the edge of the blank (8) to the center point of the rotating suction cup (33) minus the preset redundant length as the radius, and draw a first circle mark on the upper surface of the blank (8); Step 5: Move the clamping jaw assembly (72) to a preset position, and use the airtight detection assembly (73) to detect whether there are small defects on the upper and lower sides of the blank (8) within the range of the initial circle mark, and the specific location of the defect, so as to determine the center and radius of the circle for a second time, and draw a secondary circle mark.

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