TW201141647A - Clamping type fixture for laser cutting of glasses lens and positioning method thereof - Google Patents

Clamping type fixture for laser cutting of glasses lens and positioning method thereof Download PDF

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Publication number
TW201141647A
TW201141647A TW99116560A TW99116560A TW201141647A TW 201141647 A TW201141647 A TW 201141647A TW 99116560 A TW99116560 A TW 99116560A TW 99116560 A TW99116560 A TW 99116560A TW 201141647 A TW201141647 A TW 201141647A
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Taiwan
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vertical screw
lens
clamp
collet
fixed
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TW99116560A
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Chinese (zh)
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TWI379725B (en
Inventor
Guang-Qi Li
Guan-Zhi He
you-ren Zheng
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Univ Nat Formosa
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Publication of TW201141647A publication Critical patent/TW201141647A/en
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Publication of TWI379725B publication Critical patent/TWI379725B/zh

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Abstract

The present invention provides an automatic clamping type fixture for laser cutting of glasses lens and a positioning method thereof. The clamping type fixture comprises: a fixture base; a first vertical screw and a second vertical screw in a linear relationship with the first vertical screw; a movable clamping head having indentation, which can be mounted at the front end of the first vertical screw in a rotational fashion; a fixed clamping head mounted at the front end of the second vertical screw in a fixed fashion, the movable clamping head and the fixed clamping head being spaced with an interval for clamping a glasses lens, and the indentation of the movable clamping head touching the glasses lens; and a biased pressing element for driving the second vertical screw to slide for pressing the fixed clamping head toward the glasses lens, thereby clamping the glasses lens tightly between the fixed clamping head and the movable clamping head.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automated technique for laser cutting of spectacle lenses, particularly relating to a gripping jig and positioning method for use in this technique. [Prior Art] The applicant of the present invention discloses a method and a device for laser cutting of a spectacle lens in the invention patent application No. 99101280. In the present application, the image processing technology is used to capture the edge of the frame and convert it into The outer trajectory of the lens cut, in combination with the power of the laser source, causes a laser source to perform an orderly point-to-point linear loop motion over the spectacle lens and repeats multiple turns until the spectacle lens is produced by the laser source. The laser light is cut through, and a cutting lens conforming to the spectacle frame is obtained. In the present application, a clamp having a circular hole for fixing the processed circular lens is used, wherein the circular hole has a size and shape corresponding to the spectacle lens. The content of this application was incorporated into the case by reference. The team of the present invention continues the technique of the aforementioned invention patent application in the future to develop an improved fixture to simultaneously meet the needs of laser cutting of lenses of different types of glasses (full frame, semi-busy and frameless glasses). SUMMARY OF THE INVENTION A primary object of the present invention is to provide a clamp type jig for laser cutting of an eyeglass lens. Another object of the present invention is to provide a method of locating an eyeglass lens for use in eyeglass lens laser cutting in 201141647. A refreshing ware for laser lens cutting of a spectacle lens according to the present invention comprises: a jig base having a virtual horizontal x-axis and a vertical Y-axis and a X-axis intersecting the γ-axis a first vertical screw mounted on one side of the surface of the clamp base and aligned with the gamma axis, and the first vertical screw can be rotated clockwise or counterclockwise relative to The clamp base is advanced or retracted; a second vertical screw is mounted on the other side of the surface of the clamp base and the second vertical screw is aligned with the γ axis to be in line with the first vertical screw, And the second vertical screw is slidable forward or backward relative to the clamp base; a movable collet having a notch, the rear end of which is rotatably mounted to a front end of the first vertical screw and located at the clamp base Above the surface of the seat; a fixed collet having a rear end fixedly mounted to a front end of the second vertical screw and above the surface of the clamp base, wherein the front end of the movable collet is fixed formula The front ends of the collet are spaced apart from each other to be adapted to hold an eyeglass lens, and the notch of the movable collet contacts the spectacle lens; a biasing member for pushing the second vertical screw to slide the fixed collet The spectacle lens is clamped between the fixed collet and the movable collet to the spectacle lens. Preferably, the clamp fixture of the present invention further comprises a positioning motor module comprising a motor and a driving wheel for rotating the motor, 201141647
The drive wheel has a thread and is retracted with the first rotation when the positioning motor module receives a control straight screw clockwise or counterclockwise. More preferably, the clamp type clamping seat of the present invention is configured such that the first vertical screw string standing on the base of the clamp is received by the diameter of the first solid vertical screw; and a second clamp base The other side of the surface of the seat, and the second screw of the second mounting seat corresponding to the straight screw signal, for the screwing on the upper screw, can drive the first vertical clamp base to advance or further include a a first solid side, and the corresponding to the fixed seat seated on the first surface and the second hanging line is erected to the perforation of the diameter of the straight screw by the straight screw. The component includes a compression spring, and the M contraction is sleeved on the second vertical screw and is constrained between the second mount and the fixed collet. Preferably, the clamp fixture of the present invention further includes a first fixing seat that is erected on one side of the surface of the clamp base and the first vertical screw is screwed to the first fixing base. a screw hole; and a manual handle or a rotary knob fixed to the rear end of the first vertical screw and used to drive the first vertical screw to rotate clockwise or counterclockwise while advancing relative to the clamp base Or back. More preferably, the clamp fixture of the present invention further includes a second mount that is erected on the other side of the surface of the clamp base, and the second vertical screw is received by the second mount a perforation of the seat corresponding to the diameter of the second vertical screw, wherein the biasing member includes a compression spring 'and the compression spring is fitted over the second vertical screw and is constrained by the second fixing seat Between fixed chucks. Preferably, the clamp fixture of the present invention further comprises a vertical flip 201141647 mechanism for better rotating the second vertical screw clockwise or counterclockwise by an angle of i8 degrees (including 180 degrees), The vertical turning mechanism is an inversion motor module adapted to receive a control signal to drive the second vertical screw to rotate. Optionally, the vertical turning mechanism is a manual handle or knob that is fixed to the rear end of the first vertical screw and used to drive the first vertical screw rotation. Preferably, the notched movable collet comprises a stepped pillow at the front end thereof and a notch on the standing wall of the stepped pillow, and the notch is V-shaped, U-shaped or curved; and the fixed type The collet includes a stepped pillow at the front end thereof, so that an eyeglass lens can be placed on the horizontal surface of the stepped pillow of the movable collet and the stepped stow of the fixed collet and is upright of the stepped pillow of the fixed collet The wall and the notched upright wall of the stepped pillow of the movable collet are clamped in a three-point contact manner. Preferably, the clamp fixture of the present invention further comprises a first horizontal reference rod and a second horizontal reference rod 'they are mounted to the same as the first vertical screw and the first vertical screw The surface of the fixture base is above and aligned with the X-axis and can be driven to advance or retreat relative to the fixture base. Preferably, the front end of the first horizontal reference rod is provided with a non-rotatable first detachable chuck and the front end of the second horizontal reference rod is provided with a rotatably second detachable chuck, wherein the first The first and second removable collets each have a stepped pillow' so that a spectacle lens can be placed on the level of the stepped pillow of the two removable collets and the upright wall of the staircase is lost 201141647 Preferably, the clamp fixture of the present invention further includes a horizontal turning mechanism for rotating the first horizontal reference rod clockwise or counterclockwise by an angle within 18 degrees (including 180 degrees). More preferably, the horizontal turning mechanism is a flip motor module adapted to receive a control signal to drive the first horizontal reference rod to rotate. Optionally, the horizontal turning mechanism is a manual handle or a knob that is fixed to the rear end of the first horizontal reference rod and is used to drive the first horizontal reference rod to rotate. The invention also provides a method for positioning a spectacle lens using the gripping jig of the invention' comprising the steps of: a) adjusting the position of the movable collet or the stationary collet such that the movable collet and the stationary collet The midpoint of the distance between the heads is consistent with the origin; b) clamping a circular spectacle lens between the fixed collet and the movable collet 纟t the sigma contact of the movable head loss The biasing element is compressed; the mirror lens and c) causing the movable collet to retreat from the clamp base by a distance of half the length of the compressed length relative to the clamp base by driving the rotation of the first vertical screw The biasing member pushes the second vertical screw to slide while driving the circular spectacle lens clamped between the fixed collet and the movable collet, and the center of the circular spectacle lens is Origin - Zhi. Preferably, the positioning method of the present invention further comprises flipping the second vertical screw 90 degrees or 180 degrees clockwise or counterclockwise, so that the synchronous flip is tightened to the hai fixed chuck and the movable chuck The circle between: the step of the lens. ^ The invention is directed to the shortcomings of the conventional eyeglass lens fixture positioning method, and the conventional lens grinding technology is replaced by the clamp type clamp of the present invention and the lens lens laser cutting. The invention relates to a clamp type clamp which can be simultaneously applied to laser cutting methods of framed glasses and rimless glasses and half frame glasses lenses, and: with a glasses lens laser cutting device, a planning and control system for various lenses is developed. The working steps of lens cutting, chamfering of full-frame glasses, drilling of rimless glasses and grooves for half-frame glasses, such as lens cutting, chamfering, drilling, and trenching, so that all work steps are integrated into The same processing procedure. The lens positioning method using the clamp type clamp of the present invention can achieve the laser cutting center positioning accuracy within 0.1 mm. In the embodiment, the time required for laser cutting a pair of spectacle lenses can be shortened by less than 5 minutes by 30 minutes of the conventional method. The invention can improve the automation level of spectacle lens preparation, improve the shortcomings of the traditional lens edger, and provide More accurate and fast eyeglasses preparation work in the eyewear industry. [Embodiment] This month's monthly report will be further described by way of a preferred embodiment described below and in conjunction with the drawings. Rather than limiting the scope of the present invention. The lens lens laser cutting system architecture diagram is shown in Figure 1. Using the CCD staff to shoot the frame of the glasses, using the image processing technology to obtain the frame edge point coordinates, the frame edge point data is The text (4) f material format is used in the laser lens cutting control system of the human eyeglass lens. The edge coordinate of the frame is converted into the coordinate data of the frame by the pixel and the coordinates of the center point of the frame as a software coordinate origin, and the lens figure is offset according to the pupil position of the patient. Calculation. Then, through the 201141647 glasses lens laser cutting and cutting plan, the lens pattern laser cutting is calculated. The moving path 'follows the eyeglass lens laser cutting motion control module to output the χ axis and Y axis control signals to the eyeglass lens laser cutting machine motor module, and respectively outputs the On/Off power signal to the eyeglass lens laser cutting power control mode. The motor module moves the laser head according to the outer edge path of the lens, and the laser cutting power control module adjusts the laser output power according to the required depth to complete the lens cutting. Lu glasses lens clamping type fixture positioning device system cooperates with Ray The structure of the lens system of the lens-cutting technology is shown in Figure 1. Firstly, the image processing technology is used to make the lens pattern focus on the pupil position according to the position of the pupil of the lens, and then the planning and fixture positioning planning of the laser lens cutting of the eyeglass lens is carried out. Then, the X-ray and γ axis control signals are output from the laser lens cutting motion control module to the eyeglass lens laser cutting machine motor module, and the output 〇n/〇ff power h number to the eyeglass lens laser cutting power control mode. Group, and the output lens of the lens lens positioning control module horizontal screw and vertical screw control signal to the lens % lens holder Platform with motor modules. The lens lens laser cutting machine motor module moves the laser head according to the X axis and Y axis control signals, and the glasses lens laser cutting power control module adjusts the laser output power according to the 0n/0ff power signal, and the eyeglass lens positioning control module is based on The horizontal screw and vertical screw control signal control does not move to move and flip the lens, thus completing the integration of the working steps of lens cutting, chamfering, drilling and trenching. The details of the operation of the laser cutting machine motor module and the eyeglass lens laser cutting power control module have been described in the above-mentioned Chinese Patent Application No. 99101280. The details of this application are referred to by reference. Incorporated into this 201141647 case. A clamp having a circular hole is used in the prior application to fix the rounded lens of the lens to be processed, so that there is no way to control the operation of the lens to reverse the lens when the lens is chamfered. The clip-on-glass lens holder of the present invention, as the name suggests, uses the uncut lens to accurately fix the lens to the jig by means of the collet, so that the lens can be moved and flipped according to the action of the control signal. Before using the clamp fixture, the center of the working surface of the lens laser cutter must be calibrated and found. The working plane center of the glasses lens laser cutting machine is shown in Figure 2, where the laser head is first returned to the hardware zero point 〇h position, and then the laser cutting length is 190 mm' width. The bottom of the 260 mm quadrilateral The substrate 31' and the substrate fixing circular hole 32 are cut at four corners of the base substrate to have a radius of 1.5 mm, and the base substrate 31 is fixed to the work plane 30 using a screw having a diameter of 3 mm. Then use the laser to draw the horizontal center line and the vertical center line on the quadrilateral substrate. The focus of the two center lines is the center point 〇s of the working plane. After finding the center point of the working plane, 'Using the laser to sweep out the quadrilateral groove 33 centering on the center point of the working plane, the length is 150 mm, the width is 220 mm, and the depth is 3 mm, which is the fixture for placing the clamp fixture. For the base. A clamping fixture according to a preferred embodiment of the present invention, as shown in FIG. 3, includes a clamp base 11 having a length of 15 mm and a width of 220 mm and can be closely placed in FIG. In the quadrilateral groove 33 of the working plane center. In the middle of the jig base 11 is a recess 12 having a length of 95 mm, a width of 100 mm and a depth of 15 mm to avoid collision when the lens is turned over. The fixture base 11 has a virtual horizontal X-axis and a vertical 10 201141647 Y-axis on one surface, and the X-axis and the Y-axis are in the same position as the origin of the machine. The origin is the working plane in FIG. Center point 〇s. a slant: ^ ilL m A > The water thousand fixed seats 14A, 14B and a pair of vertical fixed seats 13A, 13B are respectively mounted on the horizontal axis of the 基座 base u Each end of the vertical Y axis. It is received by the vertically controlled perforation of the vertical fixing seat 3 A 15 , and is corresponding to the first vertical screw 15 and the first vertical screw
The pedestal base u advances or retreats; _th: a vertical screw 16 that is received by a vertical hole UB corresponding to the diameter of the second vertical screw, and is advanced relative to the clamp base 11 Or slide back. a movable collet 2 having a V-shaped notch is rotatably mounted to a front end of the first vertical screw 15; a fixed collet 22 having a rear end fixedly mounted to the second A front end of the vertical screw 16, wherein the front end of the movable collet and the front end of the bead are spaced apart from each other to be suitable for holding an eye lens. Since the spectacle lens size is different, a compression spring 19 is mounted on the second vertical screw 16 as a biasing member to eliminate the gap between the movable collet 21 and the fixed collet 22. Because the uncut spectacle lens is round, the three points are most stable according to the mechanical point of view, because the three points on the same plane can draw a circle, as shown in Figure 4. Fig. 5 shows a side view of the second vertical screw 16 attached to the vertical mount 13β. As shown in FIG. 4 and FIG. 5, the movable collet 21 includes a stepped pillow at the front end thereof and a V-shaped notch on the upright wall of the stepped pillow; and the fixed collet 22 includes a front end A stepped pillow' then an uncut spectacle lens 100 can be placed on the level of the stepped pillow of the movable collet 11 201141647 21 and the stepped pillow of the fixed collet 22 and is upright of the stepped pillow of the fixed collet The wall and the notched upright wall of the stepped pillow of the movable collet are clamped in a three-point contact manner. The compression spring 19 is sleeved on the second vertical screw 16 and is constrained between the vertical fixing seat 13B and the fixed collet 22, because a nut 34 is screwed to the second vertical screw 16, The length of the compression spring 19 can be adjusted. Returning to Fig. 3, the horizontal reference rods 17, 18, each having a diameter of 5 mm, on the left and right sides of the jig base are respectively slidably received by the horizontal mounts 14A, 14B. The horizontal reference rods 17, 18 are mounted at the same height as the first vertical vertical screw 15 and the second vertical screw 丨6 (both 56 mm) to be used as a reference for whether the lens is placed horizontally, and The placement of the auxiliary lens 'stablely fixes the spectacle lens horizontally between the step pillow of the movable collet 21 and the step pillow of the fixed collet 22 for processing. The front end of the first horizontal reference rod 17 is provided with a non-rotatable first detachable collet 23, and the front end of the second horizontal reference rod 18 is provided with a rotatably second detachable collet 24, wherein the first The first and second removable collets each have a stepped pillow, such that a spectacle lens can be placed on the level of the stepped pillows of the two detachable collets and clamped to the upright walls of the stair pillows . An inverting motor module 5〇 adapted to receive a control signal to drive the first horizontal reference rod 17 to rotate, so that the first removable collet 23, the second removable collet 24 and the clamped The lens in between will be rotated at the same time. The vertical movement of the lens adjusts the center position of the lens by changing the compression of the compression spring 丨9 by the positioning motor module 4 according to the automatic control signal rotating the first vertical screw 丨5. The positioning motor module includes a motor 41 and a driving for the motor. The driving rim has a thread and is coupled with the thread on the first vertical screw 15, so that the positioning motor module 40 can The first vertical screw 15 is driven to rotate clockwise or counterclockwise according to the received control signal, and is advanced or retracted relative to the clamp base 11. ,
The method for positioning the spectacle lens of the present invention comprises first adjusting the position of the movable collet or the fixed collet to make the midpoint of the distance between the movable collet and the fixed collet coincide with the origin 〇s, Positioned as shown in FIG. 3; a larger diameter circular spectacle lens is clamped between the fixed collet 22 and the movable collet 21, at which time the compression spring 丨9 is compressed; The positioning motor module 40 drives the first vertical screw 15 to rotate according to the received control signal, so that the movable chuck 15 retreats from the clamp base 11 by half the length of the compression spring 19 The distance between the center of the circular lens and the origin of the circular lens s. It is assumed that the center line 32 in FIG. 5 is the position of the origin 〇 s of the unmounted lens in FIG. 3 and the large-diameter circular spectacle lens is positioned in FIG. 6 , and FIG. 5 and FIG. 6 illustrates how to calculate the number of turns of the first vertical screw 15 required to position the larger diameter circular lens of the positioning motor module 40. "To make the center of the uncut circular lens and the origin Os, the recoil distance of the movable collet 2 1 must be equal to the advancement distance of the fixed collet 22, that is, the entire compressed length of the compression spring 19 when the movable collet 21 13 201141647 is fixed. One half is assigned to the retreat of the movable head 21, and the other half is given to the advancement of the fixed collet 22. It is said that the compression amount of the compression spring 19 is equal to the re-position of the uncut circular spectacle lens. The distance that the movable collet 2 1 retreats, that is, the compression amount of the compression spring 19 in Fig. 6 is calculated, that is, the distance at which the movable lost head 2 i retreats is obtained. Therefore, the number of turns in which the first vertical screw is rotated can be obtained by subtracting L2 in Fig. 5 from L2 in Fig. 6 (the amount of compression of the compression spring 19) and dividing the distance of the first vertical screw by one turn. For example, in the case where the lens is not mounted in Fig. 5, the length L2 of the fixing seat 13B to the fixed chuck 22 is 48.63 mm, and the length L1 of the fixing seat 13B to the center line 32 is 76.5 mm. In Fig. 6, the size of the spectacle lens is 71.47 mm, that is, the lens radius R is 35.74 mm, L1 76.5 mm minus the lens radius is 35 74 mm, and the fixing seat 3B is obtained to the fixed collet 22 in this case. The length L2 is 40.76 mm. Then, the compression amount of the compression spring 19 is equal to L2 (48.63 mm) in Fig. 5 minus L2 (40.76 mm) in Fig. 6 is equal to 7.87 mm, that is, the distance at which the movable collet 21 retreats is 7 · 8 7 mm. The distance of the first vertical screw rotation is 2.03 mm, so the 7.87 mm needs to be transferred to about 3.88 turns. Each revolution of the motor requires 4 pulses, so the number of pulses of is% is transmitted to the positioning motor module 40 to drive the first vertical screw 15 to move 7.87 mm. The movable collet 21 is rotatably mounted to the front end of the first vertical screw 15. Therefore, when the first vertical screw 15 is rotated back, the movable collet 21 does not rotate, that is, is clamped. The lens held will only retreat and will not rotate. The fixed head 22 is fixedly mounted on the front end of the second vertical screw 14 201141647 16 , so if the second vertical screw is rotated 90 degrees or 1 by a manual handle or a knob fixed to the second vertical screw At 80 degrees, the fixed collet 2 2, the movable collet 2 1 and the lens held therebetween will be rotated 90 degrees or 180 degrees at the same time. After the eye lens clamping fixture is set, the positioning and rotation of the frameless eyeglasses, full frame glasses or half frame glasses lens clamps can be planned. Calculate the movement and rotation of the first vertical screw 15 and the first horizontal reference rod 17 of the clamp type clamp according to the radius and type of the frame lens, and convert it into a pulse signal and transmit it to the motor module for automation. Accurate calibration and positioning. Because of the different types of frames, the positioning and flipping planning of the lens-clamping fixtures of each lens will be different. The system program flow chart for the three types of frame planning is shown in Figure 7. The system program flow shown in FIG. 7 is to select the size and type of the spectacle lens, calculate the amount of movement of the vertical screw and the pulse amount to perform the center positioning of the spectacle lens, according to the selected rimless glasses, full-frame glasses or half-frames. The spectacle frame type performs the process of inverting the lens and the lens until the end of the cutting of the spectacle lens to realize the cutting lens conforming to the spectacle frame of the spectacle. Since the rimless lens is not covered by the frame, the edge of the lens is not chamfered. 'But the lens must have a circular hole for fixing the lens. The clamping clamp of the present invention is used to cooperate with the laser drilling and cutting steps. Each processing step can be integrated into the same additive program. First, manually move the horizontal reference rod to the inside of the fixture base, and move it so that the uncut lens is placed at the same level as the v-shaped Du.壬, τ 1 pillow movable chuck of the first vertical screw. , on behalf of the lens placement level, the horizontal reference ten-dry cup can be withdrawn outside the fixture base. According to the lens 201141647, the compression amount of the compression spring is moved, and the number of pulses and the pulse amount of the first vertical screw is calculated by the motor positioning module, and the uncut glasses lens is moved to the center of the laser plane to complete the positioning, and then the power of the laser source is matched. Size and spectacle lens laser cutting trajectory planning burgundy in μ (five) _ J executive lens circular drilling, and then complete rimless glasses
Various shapes of the lens, such as + IA, can avoid the problem that the lens can not be stabilized and fixed between the chucks after the first cutting. The full-frame glasses need to chamfer the edge of the lens in order to make the lens and the frame more closely match. The power of the laser light source is controlled so that a laser light source performs an orderly point-to-point linear winding motion on the front and back sides of the lens. Angle processing. The second vertical screw of the clamp type centering device of the present invention is turned 180 degrees to integrate the front side laser chamfering process of the lens and the back side of the lens to form the same processing program. Firstly, the horizontal reference rod is manually moved to the inside of the clamp base, so that the uncut lens is placed at the same level as the v-pillow movable clamp of the first-vertical screw, representing the lens placement level, and the horizontal reference rod can be used. Exit to the outside of the fixture base. According to the compression amount of the compression spring of the lens, the motor positioning module drives the first vertical screw (four) turns and the pulse amount, and moves the uncut glasses lens to the laser plane. Wherever you become. Receiver's lens laser cutting motion control module: Execution: Ordered point-to-point linear winding motion for laser chamfering. When the front chamfer is completed, the second vertical screw is rotated 18 degrees to the back side by turning the motor or manually. In the implementation of the 2000 pulse number and the forward rotation signal to the reverse motor, the first vertical screw is rotated by a half turn to rotate the first vertical screw 18 degrees to rotate the lens from the front to the back of the lens. The back side is also finished with a left-right symmetrical movement with the front side. 16 201141647 Chamfering </ RTI> implements the clamping clip and the processing of the 柩 glasses lens. Half-rimmed glasses are usually designed to be vacant from the lower edge of the π-electric film. The upper edge of the lens is bare and empty. There are two, two, and the left and right sides are designed to be naked, and the bare edge is required. Ditch and squat the lens. The use of the clamp type jig of the present invention can integrate the working steps of the laser cutting knife, chamfering and the groove into a homo-processing program. In the following, the design of the lower edge of the lens is used as an example. n Manually move the horizontal reference rod to the inside of the pedestal base.
Straight water at 10 o'clock and the first vertical screw v-type pillow The movable head is at the same height 'representing the lens placement level, then the horizontal reference: exit to the outside of the clamp base. According to the reduction of the compression spring of the lens, the motor positioning module drives the number of turns and the pulse amount of the first-vertical screw, and moves the uncut spectacle lens to the center of the laser plane to complete the positioning. Then, with the power of the laser source and the laser cutting trajectory of the spectacle lens, the upper edge chamfering and lens cutting of the front lens are first performed. The order of cutting the appearance is as shown in Fig. 8, 胄9, о10, Fig. u, Fig. 12, and Fig. 13. Figure 14 and Figure 15. The upper edge of the lens uses a spectacle lens laser cutting system to perform an orderly point-to-point linear winding motion to perform laser chamfering processing, so that the upper edge of the lens is closer to the frame, and the lower edge of the lens is cut by the frameless lens. Avoiding the lens cannot be stably fixed between the movable type and the fixed type of chuck, resulting in failure to perform subsequent processing. Then, by rotating the motor module, the second vertical screw is rotated by 180 degrees, that is, the pulse number of 2000 is transmitted to the reverse motor module, and the second vertical screw is rotated clockwise by 180 degrees to rotate the lens from the front. To the back of the lens, the laser chamfering of the upper edge of the lens is performed. When the back chamfering is completed, the lens shape is as shown in Fig. 17 201141647 9. However, the number of pulses of _ is transmitted to the reverse motor module to reverse ι/4 turns. The second vertical screw is rotated counterclockwise by 9G degrees, and then the laser groove on the left end face of the lens is performed, as shown in Figure 1. ^ After Tingding 70% of the lens on the left side of the groove, the number of pulses is transmitted to the inverting motor module so that the motor rotates half a turn to drive the second vertical screw (four) after the needle is turned to 18G degrees, then the right side of the lens is the laser groove, such as Figure U shows. After completing the right side of the lens, the number of pulses is transmitted to the inverting motor module so that the motor rotates half a turn to drive the second vertical screw (four) and the hour hand turns 90 degrees. Then, the first and second horizontal reference rods are installed at the front end. And a second detachable chuck that manually pushes the horizontal reference rod to enable the first and second nipple chucks to stabilize the holding lens, as shown in the ®12. Then, the first and the vertical screws are retracted from the lens, and the power of the laser light source and the laser cutting trajectory of the spectacle lens are used to cut off the excess waste of the lens shape, wherein the upper edge of the lens is chamfered and the lower edge of the lens is The frame lens knife is cut by way. Then, the flip motor module that is transmitted to the first horizontal reference rod by the pulse number of 2_ causes the motor to rotate the first horizontal reference rod by a half turn to rotate the first horizontal reference rod 180 degrees clockwise to rotate the front side of the lens to the back of the lens for performing on the back surface of the lens. The chamfer of the edge is as shown in Fig. 13 after the chamfering of the upper edge of the back surface of the lens is completed. Finally, the inverted motor module of the first horizontal reference rod is transmitted by the pulse number of the ι〇〇〇, so that the motor rotates half a turn to drive the first horizontal reference rod clockwise by 90 degrees, and the power of the laser light source and the eyeglass lens The cutting trajectory is planned to perform the groove of the lower edge groove of the lens, as shown in Fig. 14, to complete the production of the half-frame glasses lens. The first horizontal reference rod is then rotated clockwise by 9 degrees to return to the position shown in Fig. 15, and the first and horizontal reference are manually removed; the dry half is retracted, and the produced half-rimmed spectacle lens is taken out. 18 201141647 The clamp type clamp of the present invention can actually perform positioning and flipping of the lens for the three types of spectacle lenses of the full-frame glasses, the rimless glasses and the half-frame glasses, and the laser cutting system, and each of the lenses is made. The processing steps are integrated into the same processing program. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a block diagram showing the architecture of a spectacle lens laser cutting system of the present invention. Fig. 2 is a top plan view showing the working plane and the bottom substrate of the spectacle lens laser cutting machine of the present invention. 3 is a top plan view of the spectacle lens holder of the present invention. Fig. 4 is a top plan view showing the uncut mirror lens being clamped to the clamp type jig of the present invention. Figure 5 is a side elevational view showing a portion of the first vertical screw 16 and the fixed collet 22 mounted to the vertical mount 13B when the spectacle lens holder of the present invention is not clamped. Fig. 6 is a side elevational view showing a portion of the second vertical screw 16 and the fixed collet 22 mounted to the vertical mount 13B when the spectacle lens holder of the present invention holds the uncut lens. Figure 7 is a flow diagram of a program for a spectacle lens laser cutting system for three types of frame planning. 8 is a top view showing the uncut mirror lens being clamped on the clamp type jig of the present invention for the processing of the half-frame glasses. FIG. 9 is a process of processing the half-frame glasses by the clamp type clamp of the present invention 19 201141647 The top view shows the lens where the lens has been partially cut and the upper edge is cut. Fig. 1 is a top plan view showing the processing of the half-frame glasses for the clamp type jig of the present invention, wherein the laser vehicle ditch is formed on the left end surface of the lens. Figure 11 is a top view of the processing of the half-rimmed spectacles of the clamp type jig of the present invention, in which the laser slats of the right end face of the lens are being carried out. Fig. 1 2 is a top view view showing the processing of the half-frame glasses by the clamp type jig of the present invention, wherein the first and second detachable chucks further hold the lens. Fig. 13 is a top plan view showing the processing of the half-frame glasses by the clamp type jig of the present invention, in which the excess waste of the lens shape is cut off. Fig. 14 is a top view of the processing of the half frame glasses of the clamp type jig of the present invention, in which the groove of the lower edge groove of the lens is performed. A top view of the processing of the half-rimmed glasses for the clip-on type of the present invention. [Description of main component symbols] 30.·Working plane: u &gt; 3l.. bottom substrate; 32. fixed circular hole; 33·. quadrilateral concave;. 曰' 0h ·.hard zero; 〇s.. center point ;i}. Fixture base; 13A 13B.·Vertical mount; 14A, 14B.·Horizontal mount; Vertical spiral birch; 16, Second vertical screw; 17 .. First horizontal reference rod; 18. Two horizontal complex + reference rod; 19. compression spring; 21 · movable chuck; 22: fixed chuck; 23 first removable collet; 24 second removable collet; Positioning motor module; 41.. motor; 42··drive wheel; .turn motor module; 1〇〇.. uncut spectacle lens 20

Claims (1)

  1. 201141647 VII. Patent application scope: 1. A clamp type clamp for laser lens cutting of a spectacle lens, comprising: a fixture base having a virtual horizontal χ axis and a vertical γ axis ' and an X axis and a Y axis Intersecting at an origin; a first vertical screw mounted on one side of the surface of the fixture base and aligned with the gamma axis, and the first vertical screw can be rotated clockwise or counterclockwise relative to Advancing or retreating the clamp base; a second vertical screw mounted on the other side of the surface of the clamp base Φ and the first vertical screw being aligned with the Y-axis and forming with the first vertical screw a straight line, and the second vertical screw is slidable forward or backward relative to the clamp base; a movable collet having a notch, the rear end of which is rotatably mounted to a front end of the first vertical screw and located at Above the surface of the clamp base; a fixed collet having a rear end fixedly mounted to a front end of the second vertical screw and located above the surface of the clamp base, wherein the movable collet The front end and the front end of the fixed collet are spaced apart from each other to be adapted to hold a spectacle lens and the notch of the movable collet contacts the spectacle lens; a biasing member for pushing the second vertical screw to slide A fixed collet presses against the spectacle lens to clamp the spectacle lens between the stationary collet and the movable collet. 2. The gripper type of the patent scope of claim 1, further comprising: 21 201141647 a positioning motor module, * comprising a motor and a driving wheel for rotating the motor, the driving wheel having a thread and The thread is sprayed with the first vertical screw. Then, when the positioning motor module receives the control signal, the first vertical screw can be driven to rotate clockwise or counterclockwise to advance or retreat relative to the clamp base. 3. The clamp fixture of claim 1, further comprising: ^ - a first mount, which is erected on the # side of the surface of the clamp base, and the first vertical screw system a screw hole screwed into the first fixing seat; and a manual rotation handle or a rotary knob is fixed to the rear end of the first vertical screw and used to drive the first vertical screw to rotate clockwise or counterclockwise, And advance or retreat relative to the fixture base. 4. The clamp fixture of claim 2, wherein the step-by-step includes a vertical flip mechanism for rotating the second vertical screw 180 degrees clockwise or counterclockwise (including 180 degrees) The angle inside. The clamp fixture of claim 4, wherein the vertical turning mechanism is a flip motor module adapted to receive a control signal to drive the second vertical screw to rotate. 6. The clamp fixture of claim 4, wherein the vertical turning mechanism is a manual rotation handle or is known to be fixed to a rear end of the second vertical screw 22 201141647 and used to drive the second vertical The screw rotation β. 7. The drop-on clamp of claim 2, further comprising a first fixing seat that is erected on a side of the surface of the clamp base and the first vertical screw system a perforation corresponding to a diameter of the first vertical screw of the first fixing seat; and a second fixing seat erected on the other side of the surface of the clamp base, and the second The vertical screw system is received by a second hole of the second fixing seat corresponding to the diameter of the second vertical screw, wherein the biasing element comprises a compression spring, and the compression spring is sleeved on the second vertical screw Limited between the second mount and the fixed collet. 8. The clamp fixture of claim 3, further comprising a second mount that is erected on the other side of the surface of the trip base and the second vertical screw is Receiving a perforation corresponding to the diameter of the second vertical screw of the second fixing seat, wherein the biasing element comprises a compression spring, and the compression spring is sleeved on the second vertical screw and is limited by The second fixing seat is between the fixed chuck and the fixed chuck. 9. The clamp type clamp of claim 1, wherein the movable jaw having a notch comprises a step pillow at a front end thereof and a notch on an upright wall of the step pillow, and the gap It is a ν-type, U-plastic or arc-shaped, and the side-mounted collet includes a stepped pillow at the front end thereof, and the spectacles lens can be placed on the step of the movable collet and the fixed type 23 201141647 collet The vertical wall of the stepped pillow and the upright wall of the stepped pillow of the fixed collet and the notched upright wall of the stepped pillow of the movable collet are cooled in a three-point contact manner. Ίο. The lost-type clamp of the scope of the patent application, further comprising: a third horizontal reference rod and a second horizontal reference rod, which are installed at the same height as the first vertical screw and the second vertical screw The surface of the fixture base is aligned with the X-axis and aligned with the X-axis and can be driven to advance or retreat relative to the fixture base.夹持. The clamp fixture of claim 10, wherein the front end of the first horizontal reference rod is provided with a non-rotatable first detachable humiliation' and the front end of the second horizontal reference rod is provided with a rotatable The second detachable head lost, wherein the first and second removable collets each have a stepped pillow, so that a spectacle lens can be placed on the level of the stepped pillow of the two removable collets and Clamped to the upright walls of the ladder pillows. 12. The clamp fixture of claim 3, further comprising a horizontal turning mechanism for rotating the first horizontal reference rod 180 degrees (including 180 degrees) clockwise or counterclockwise . 13. The clamp fixture of claim 12, wherein the horizontal turning mechanism is an inversion motor module ' adapted to receive a control signal to drive the first horizontal reference rod to rotate. 24 201141647 14. The clamp fixture of claim 12, wherein the horizontal turning mechanism is a manual handle or a rotary knob fixed to a rear end of the first horizontal reference rod and used to drive the first The horizontal reference rod rotates. 15. A method of positioning a spectacle lens using a gripping jig of the scope of the patent application, comprising the steps of: a) adjusting the position of the movable or fixed collet such that the movable collet is The midpoint of the distance between the fixed chucks is consistent with the origin; b) clamping a circular spectacle lens between the fixed collet and the movable collet, wherein the movable lost head is notched Contacting the spectacle lens and compressing the biasing element; c) causing the movable collet to retreat from the jig base by a distance of half the length of the compressed length relative to the jig base by driving the rotation of the first vertical screw At this time, the biasing member pushes the second vertical screw to slide, and φ drives the circular spectacle lens that is clamped between the fixed head and the movable collet, so that the center of the circular spectacle lens Consistent with this origin. The method of claim 15, further comprising turning the first vertical screw clockwise or counterclockwise by 9 degrees or 18 degrees, so that the synchronous flip is clamped to the fixed chuck and the The step of the circular spectacle lens between the movable collets. 25
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI457733B (en) * 2012-08-22 2014-10-21
CN111037122A (en) * 2020-01-13 2020-04-21 沧州领创激光科技有限公司 Double-station laser cutting machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI457733B (en) * 2012-08-22 2014-10-21
CN111037122A (en) * 2020-01-13 2020-04-21 沧州领创激光科技有限公司 Double-station laser cutting machine

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