TW505556B - Method for grinding lens - Google Patents

Abstract

The present invention relates to a method for grinding lens wherein rotational speed of a driving motor is controlled by a speed controller whereby speed can be changed in the cutting and grinding process. In an initial phase of cutting, a low speed is taken in cutting the lens, which eliminates the problems of lens edge breaking and generation of multiple eccentric optic axes caused by excessive cutting pressure. In a final phase of grinding, the motor speed is slowed down for grinding the lens with low speed in order to eliminate the problems of scratches caused by high speed grinding and thus leading to polishing-like grinding result. By means of this method and the associated devices, the lens production efficiency is raised up without causing lens edge damage and generation of multiple eccentric optic axes.

Description

505556 Case No. 89108846 Revision V. Description of the Invention (1) [Technical Field] The present invention relates to a method for sharpening a lens to improve production efficiency. [Previous technology] As shown in Figure 3, the method of lens grinding and lens grinding, especially an 8 1 belt that can simplify the steps without breaking edges and generating eccentric optical axis, is connected, and the moving shaft 8 rod 8 6 is set straight. The receiving mold m 8 and the desired 8 9 2 Please cut the lens into the mirror and perform 2 with the research tool 9 1 to move a deflection rod 8 3 The other part of the deflection 4 has a lens 9 1 Likou finished surface pavement 9 2 Refer to the first cutting step, the cutting step to grind to a finer rough grinding step, and as shown, the other end of the core wheel 8 is a shaft 8 4 connected to a pneumatic cylinder 8 7 1 9 2, The mirror formed by the grinding part is provided with a Nanlikou workman. Figure 04: A: B: The mold to be used has phase roughness. C: The rod is ground with a polishing sheet. 8 3 is set by a motor. The middle position of the left and right deviation 8 5 has a connecting rod 8 6 swing lever 8 7 is a kind of mirror 2 driven by a swing lever 8 8 fixed to a bearing seat to bear against a lens 9 8 9 2, Tablet 9 2 feet

Conventional grinding Lathe material 9 9 Solitary 8 9 1 When the margin mode is JHI, the lens is heavy again. The lens 9 2 is used mode J3H.

8, 7, while the swing rod 8 7 is another jig 9 1, and the bottom surface of the jig 9 2 is against a rotating shaft. The shape of the grinding part is small and small particles (8 9 2 shape compensation, due to: Rotate the swing shaft 8 4, and the biased connection end is perpendicular to the bottom surface 8 9, the size of the grinding unit is as follows. The method of using the lens includes: turning the material into the required lens prototype. The grinding part 8 9 2 of the jig 9 1 placed in a grinding device is the size of the lens 9. Repeat the above steps. Placed in another grinding device as described above 8 9 2 Grinding section 8 9 1 pair of warp

505556 Case No. 89108846 Λ_ Revision V. Description of the Invention After grinding, there is a small amount of polishing light left in step B to eliminate the set processing of the lens. At this time, the mirror grinding section 8 2 is set at the grinding step B in the south. The roughness of the sharpened part 8 9 3 is shown by the large cut, and the holding fixture is deflected, and then the sheet 9 2 surface lens 9 2 is ground and polished. [Purpose and hair (2) have scratches under a considerable margin, And the size of the degree. Step D: Remove the micro 9 2 during grinding in the cutting step, and leave a considerable piece of 9 2 with a curvature of 9 2. The curvature of the semi-initial stage will only contact the speed of the middle fixture 9 1, and The high hardness surface on 2 is broken due to the grinding pressure or the axis of the 9 1 is deviated. As shown in Figure 7, due to the scratches on the grinding step, the process requires four different steps. The objective lens 9 2 is polished to eliminate the grinding step to improve the surface accuracy of the lens 92 and the processing radius of the car driver's coarse sugar will be reduced to the light machine when the scratch A is sharp. For example, the lens 9 swings the rotating shaft 8 particles to , Tolerant, the edge of the production turned, and shows that the process C needs to be polished and finished in a different overall system, and the surface margin is greater than the maximum of 9 shown in Figure 5 of Figure 2 The high speed easily results in a large broken edge, which makes it difficult to apply the lapping machine to the mirror at a fixed speed to cut the required lathe, and it is therefore shown in the cutting. Increase the disadvantage of high-speed spiral-cut lens 9 The production of mirrors is polished and the steps are complicated and the cutting of 9 2 is processed. It is convenient to cut the mold 8 to make the grinding. However, the speed of the work is changed, because the speed is the best of 2, such as 8 pins. 9 births. Grinding, capacity D, while cutting, research takes time. Perform throw precision. Continue each step of the step B 9 of the tool 8 9 Because of the grinding, it is used to sharpen the outer edge of the lens 9 as shown in Figure 6 1 The top optical axis is also easy to sharpen and grind the mirror. It is to solve the above problems. Provide a

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No. 8910884R No. 5 Description of the invention (3) f-piece grinding method 'grinds the lens by slow ^ catch, in order to: privately use an eccentric optical axis in the initial stage of the research to explain the excessive stress on the film to generate a ray axis The dual function can achieve the speed of the lens without breaking edges, edges, or how slow to grind the lens. The grinding step is based on the eccentricity of the late grinding.

Lr: To the effect of near-abrasive grinding: "Small question" The effect of sharpening production efficiency. The polishing step achieves the second purpose of the invention. The machine used can be processed by an intermediate process, and can be used to prevent soreness when converting the machine. The power of precision. Decide the difference to achieve the [Technical content]】 :: Provide a lens grinding method, the method. Le one step one cutting; Dagger · ,, the material required to form the lens turned into the required prototype lens first step -A grinding;,; 1 lens is placed in the bottom of the fixture, and the speed of the grinding, Λ 00 ~ 50 0 0 ... will drive the fixture and then the distance :: the surface of the lens is 5 to 10 minutes slower Speed grinding 'and the motor's operating speed are increased to drive the jig to swing with a grip of about 2000 ~ 25,000 rm. After the slow speed grinding, the second f speed grinding to an appropriate size; The third step is grinding; and the ground lens is placed in the bottom of the jig, and the motor that drives the grinding jig ^ is driven by a speed of about 2000 to 25,000 rpm = swinging, After grinding, the lens is quickly ground until it is close to the standard of the lens ^------------------------------------- ----- Second --- 505556 Case No. 89108846 Amendment V. Description of the Invention (4) Dimensions, then the speed of the motor will drive the fixture to swing, the standard size for warp needs. The detailed description of the above and embodiments of the present invention and [the detailed description of the embodiments please refer to FIG. 1 and the embodiments. This is only for other purposes and advantages of the lens after a rapid reduction of 0 degrees to about 2 0 0, In the drawing, get deeper] Figure 2 shows the purpose shown in the figure. It is not difficult to understand the slow speed grinding in the patent application ~ 500 rpm from the following selected applications. The one selected for the present invention is not limited to this. The first will be the first bottom of the motor's jig grinding unit's speed device rpm, the second will be the bottom. PM's invention lens grinding method includes: Step 1 — Cutting; the materials required for the sheet are turned into the required lenses 5 prototypes are made into mirrors 2 steps after cutting are controlled at 4 0 pendulum 4 9 2 slow speed grinding the motor's speed lens 5 after 3 steps grinding by the speed control speed belt 2 A grinding lens moves about 20 times, so that the cutting and rotation of the lens can be quickly set to a rule of 0 ~ 5 0 0. The prototype formed by the rotation during rotation prevents the lens 5 speed from increasing to the grinding speed. Grinding is suitable for 3—grinding; the lens device will move the grinding 5 to another motor to control the fixture 4 used at the bottom of the tool 0, and the speed of the speed control device rpm will drive the mold on the grinding shaft 4 9 4 9 The surface of the lens 5 of 1 is 5 to 1 0, and the edge is broken. Then it is controlled by about 2 0 0 to 2 5 0 0 with a 40 swing, and it is a size that has been studied slowly. Lens grinding device fixture 40 about 2000 ~ 2500r 0 swing, and the shaft 4 9

505556 Case number 89108846

V. Description of the invention (5) > Grinding part 4 g of mold 4 9 1 Grinds the lens 7 after grinding to a standard size close to lens 5, and then controls and reduces it to 500 ~ 10 volumes ^ ^ ^ Motion, rapid research]: 0 jig for second-motion grinding 4 lens produced during grinding: slow grinding to eliminate degree. Fine scratches to the required standard size and surface due to the operation of Ben Meng, so research; in the initial stage of η2, the motor is controlled to keep the particles on 4 9 2; the swing speed is slower, so that the grinding disc 5 The outer edge is unprepared: m produces excessive cutting pressure. In the process, the grinding part 4 9? ~ Ρ ς monthly condition and grinding at k speed, 丄 μ Θ February will be outside the film 5 to win gm π R. In the case of rapid grinding, the grinding section 4 9 2 can be fully contacted by 4 μ μ η in full contact, 5 pieces of 5 with a finer roughness: ^ the next axis will deviate _ X 之 板 孤Re-examination of the grinding action. Min, go to ## 二 二 At the end of the grinding work in step 3, the speed of the 垆 1-shaped motor is reduced to ^ "The fixture of the speed-setting device 40 swings, f + = ^ 0 r P m to drive the grinding. The speed of the lens 5 after the speed is slow}, the grinding section 4 9 2 during the grinding, batches of R4 are small, so that the grinding profile is used Λ Q 9 7 = when the relative grinding of the lens 5 is performed ^ Deg ° σ eliminates the surface of the lens 5 by r < smashing fine scratches, and the lens fruit does not need to be processed as the conventional girl i such as ^ 5 to produce a nearly polished light, f method :,: Then use the polishing machine to apply the machine processing program for the lens 5 to reduce the number of machines used, and can avoid the precision when changing the machine. In order to improve the accuracy of the lens, in order to change the motor by using the control device to change the rotation of the motor, the movement of the motor can be changed quickly. The speed of the movement can be accurately adjusted by the slow and slow cutting unit. In order to reduce the speed of rising mirrors,

505556 ___MM 8910884R___ Year and month _ V. Description of the invention (6) Make the second step 2 in the initial stage of grinding, and the fixture 40 can grind the lens 5 at a slower swing speed to avoid excessive cutting pressure on the lens 5 The problem of broken edges or multiple eccentric optical axes can achieve the dual effect of preventing the lens 5 from breaking edges and generating eccentric optical axes. Furthermore, the third step 3 is to grind the lenses at a slower speed in the later stage of grinding. 5 _ ^ _

The grinding effect of Id2 liter polishing can simplify the light holding sequence, which can reduce the use efficiency. In addition, by simplifying the processing difference, it can achieve the connection ^ = machine to avoid the accuracy when switching the machine. The power of precision.

Restriction ii: The description is used to illustrate the present invention, and is not intended to fall within the scope of the present invention: Changes in value or replacement of equivalent components should still be based on the above detailed description. -Can make those skilled in the art understand that the invention has actually complied with the provisions of the patent law,

Page 9 505556 _Case No. 89108846_ Year Month Day __ Brief Description of Drawings Figure 1 is a flow chart of the lens grinding method in the present invention. Figure 2 is a schematic diagram of the contact between a grinding tool and the lens of the present invention. Figure 3 is a customary figure. The external appearance of a lens grinding device. Figure 4 is a flowchart of a conventional lens grinding method. Figure 5 is a schematic diagram of a conventional grinding tool and lens contact. Figure 6 is a schematic diagram of a conventional lens breaking edge. Figure 7 is a conventional grinding tool deflection. Schematic diagram of the lens complex beam axis [Description of drawing number] (conventional part) Motor 8 1 Eccentric wheel 8 2 Connecting rod 8 3 Offset shaft 8 4 Bearing block 8 5 Connecting rod 8 6 Swing rod 8 7 Pneumatic cylinder 8 8 Rotating shaft 8 9 mold 8 9 1 grinding part 8 9 2 jig 9 1 lens 9 2 cutting step A grinding step B grinding step C polishing step D (part of the present invention) first step 1 second step 2 second step 3 jig 4 0 Shaft 4 9 mold J3H 4 9 1 Grinding part 4 9 2 Lens 5

Claims (1)

505556 Case No. 89108846 Amendment VI. Patent application for a variety of lens grinding methods, the method includes: The first step is to cut the second to move the motor of the chick, to the slow speed of 0 to 2 5 after the speed of grinding to compare with the first Three will grind the grinding fixture to drive the lens close to the lens 0 ~ 50. The material required to form the lens is turned into the required prototype lens. Step one is grinding. Set the lens to about 200 ~ After the cutting is completed, the lens at 0 0 rpm is then finely roughened. The motor of the ground lens is swung by the fixture, and the standard size of 0 rpm is used to slowly grind the bottom of the fixture. The speed of driving the grinding fixture is 500 rpm, and the surface of the prototype lens is driven for 5 to 10 minutes to increase the running speed to about 2 0 to drive the fixture to swing. Size; mold | repeat the previous grinding action; place it in the bottom of another jig, and make the grinding of the lens to a speed of 2000 ~ 2500 rpm, and then reduce the speed of the motor to about 20Movable swing jig for by flash after grinding to the required size of the standard. Page 11