KR101887016B1 - Method for processing edge of eyeglass lens - Google Patents

Method for processing edge of eyeglass lens Download PDF

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Publication number
KR101887016B1
KR101887016B1 KR1020160174943A KR20160174943A KR101887016B1 KR 101887016 B1 KR101887016 B1 KR 101887016B1 KR 1020160174943 A KR1020160174943 A KR 1020160174943A KR 20160174943 A KR20160174943 A KR 20160174943A KR 101887016 B1 KR101887016 B1 KR 101887016B1
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KR
South Korea
Prior art keywords
spectacle lens
lens
edge
cutter
cutting
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KR1020160174943A
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Korean (ko)
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KR20180072040A (en
Inventor
이현철
하승석
Original Assignee
주식회사 휴비츠
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Priority to KR1020160174943A priority Critical patent/KR101887016B1/en
Priority claimed from US15/642,733 external-priority patent/US10576600B2/en
Publication of KR20180072040A publication Critical patent/KR20180072040A/en
Application granted granted Critical
Publication of KR101887016B1 publication Critical patent/KR101887016B1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B13/00Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
    • B24B13/0031Machines having several working posts; Feeding and manipulating devices
    • B24B13/0037Machines having several working posts; Feeding and manipulating devices the lenses being worked by different tools, e.g. for rough-grinding, fine-grinding, polishing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00Drives or gearings; Equipment therefor
    • B24B47/22Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation
    • B24B47/225Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation for bevelling optical work, e.g. lenses
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • B24B9/08Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
    • B24B9/14Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of optical work, e.g. lenses, prisms
    • GPHYSICS
    • G02OPTICS
    • G02CSPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00Optical parts
    • G02C7/02Lenses; Lens systems ; Methods of designing lenses

Abstract

A spectacle lens processing method capable of processing the edge of a spectacle lens into a stepped shape and an inclined shape is disclosed. The spectacle lens edge machining method includes moving a wheel shaft transfer rotary member (36) pivotally moving with respect to a stationary frame to transfer a wheel shaft (34) coupled to the wheel shaft transfer rotary member (36) (34a) and the rear cutting edge (54a) of the slanting cutter (50) to the edge of the spectacle lens; And the lens surface 10 of the spectacle lens 10 while moving the spectacle lens 10 according to the shape of the spectacle frame and the curvature of the spectacle lens 10 in a state in which the wheel shaft 34 and the cutter 50 are rotated Edge of the spectacle lens 10 is brought into contact with the rear cutting edge 54a of the step and the slanting cutter 50 so that the edge of the lens surface 12 of the spectacle lens 10 is cut so that the stepped structure 14 is formed .

Description

[0001] The present invention relates to a method for processing an edge of an eyeglass lens,

The present invention relates to a spectacle lens processing method, and more particularly, to a spectacle lens processing method capable of processing an edge of a spectacle lens into a stepped shape and an inclined shape.

In order to manufacture a spectacle lens, a commercially available circular lens (usually called a blank lens) should be processed into a shape of a desired spectacle lens, for example, a shape of an eyeglass frame. 1 is a view showing a process of processing a circular lens into a spectacle lens shape by using a grinder such as a diamond wheel. 1, a lens edger is equipped with a grinder 20 which is rotated by a motor 22, and a circular lens 10 fixed to the clamp 24 is mounted on a grinder 20 Facing each other. The grinder 20 includes a rough grinding machine 20a, a bevel machining grinder 20b, a tilting machining grinder 20c, and a surface finishing grinder 20d. The clamp 24 serves as a rotating and moving shaft for rotating (R direction) or moving the lens 10 (Y direction). The lens processing machine moves the clamp 24 in the direction of the rough grinding machine 20a (Y direction in Fig. 1) so that the periphery of the lens 10 is brought into contact with the rotating rough grinding machine 20a, 10) Polishing the peripheral portion. This polishing process can be carried out with respect to the entire circumference of the lens 10 while rotating the lens 10 (R direction) (three-axis movement of the lens 10) have. In Fig. 1, reference numeral 26 denotes a lens fixing tape, and reference numeral 28 denotes a lens fixing block, which are used to firmly couple the clamp 24 and the lens 10 together.

After the outer shape of the spectacle lens 10 is roughly processed, the lens 10 is fixed to the spectacle frame, a lens fixing string or the like, or the peripheral (side) . Fig. 2 is a view showing various forms of processing around the spectacle lens. As shown in Fig. 2, the periphery of the spectacle lens 10 is processed into a mountain shape (Fig. 2A, Fig. 2B) so that the periphery of the spectacle lens 10 is inserted and fixed in the groove formed in the inside of the spectacle frame, 2B), a plane and an inclined portion may be formed (Fig. 2C). In this case, as shown in Fig. The "bevel machining" shown in FIG. 2A is performed by a bevel machining grinder 20b (see FIG. 1) having a circumferential groove. For example, when the lens 10 roughly processed by the rough-cut grinder 20a is moved so as to abut the bevel processing grinder 20b and the periphery of the lens 10 is abraded by the bevel-processing grinder 20b, 10). The mountain and the inclined portion shown in Fig. 2B are formed by forming a mountain-like shape around the lens 10 with the bevel processing grinder 20b (see Fig. 1), and then the inclined machining grinder 20c, which is an asymmetric wheel, And the planar and inclined portions shown in C in Fig. 2 are obtained by machining the periphery of the lens 10 in parallel with the rough machining grinder 20a and then forming the periphery of the lens 10 with the incline machining grinder 20c And can be formed by polishing.

On the other hand, as shown in Fig. 2D, a groove shape 82 is formed around the spectacle lens 10 ('grooving processing'). In the semi-rimless spectacles, a part or the whole of a lens fixing line or an eyeglass frame having a small thickness is fitted into the groove 82 to fix the spectacle lens 10, Also. The 'grooving process' can not be performed by the large lens processing machine shown in FIG. 1, so it is performed by a separate small grinder (groove wave base) for grooving. Fig. 3 is a perspective view of a conventional grooved portion additionally mounted on a lens processing machine (see Patent Document 10-2006 -0054560). 3, the groove base 30 includes a groove forming wheel 32 for forming a groove around the lens 10; A wheel shaft 34 supporting the groove forming wheel 32; A wheel moving rotary member 36 having one end mounted on the wheel shaft 34 and the other end rotatably mounted on the fixed block 38 to move the wheel shaft 34; A wheel moving motor 42 mounted on the fixed block 38 for moving the wheel-moving rotary member 36 via the worm wheel 40; And a wheel rotating motor 44 that rotates the groove forming wheel 32 and the wheel shaft 34 at a high speed by a pulley and a belt mounted inside the wheel moving rotary member 36. In operation, when the wheel moving motor 42 is driven, the rotational force of the wheel moving motor 42 is transmitted through the worm gear 40, and the wheel moving rotational member 36 is rotated in the direction of the arrow in FIG. 3, The groove forming wheel 32 is moved to the polishing position. Next, the clamp 24 on which the lens 10 is fixed is moved so that the periphery of the lens 10 is brought into contact with the groove forming wheel 32, the groove forming wheel 32 is rotated, Thereby forming a groove 82 having a desired depth. Thus, the " grooving " is carried out by the groove breaking unit 30, which is a small grinder having a small curvature.

2. Description of the Related Art [0002] As consumer demands and glasses have diversified in recent years, spectacle frames and spectacle lenses having various shapes and curvatures have been used. These special types of glasses are made for demanding sports or design rather than vision correction (for example, goggles). In the case of glasses having a specific shape, there is a case where the periphery or the edge of the spectacle lens can not be processed according to the shape of the spectacle frame in the conventional equipment. For example, in the case where only a part of the spectacle lens is irregularly inserted into the spectacle frame, it may be difficult to precisely process the spectacle lens periphery only by three-axis movement of the lens. When step and bevel processing is required on the front and rear edges of the high curve lens of 6 or more curves, the processing axis of the lens processing machine, for example, the wheel shaft 34 is tilted freely along the lens curve tilting) or movement. Therefore, in the processing of such a complicated shape, a large-scale processing equipment (equipment for Lab) which can freely move the polishing apparatus and the machining axis is used. Further, in order to precisely process the edge of the spectacle lens in a stepped shape, a machining tool having a small area of the polishing surface must be used, so that it takes a long time for machining and a drawback in that the illuminance of the polishing surface must be lowered in order to improve workability .

It is an object of the present invention to provide a spectacle lens edge processing method which can reduce the processing cost and the processing time of the spectacle lens by processing the edge of the spectacle lens into a stepped and inclined shape without using an expensive large- .

It is another object of the present invention to provide a method of processing a spectacle lens edge which can easily perform a step and a slanting process at the edge of a spectacle lens by improving a grooved portion having a simple structure without a tilting function of the processing axis.

It is still another object of the present invention to provide a spectacle lens edge processing method capable of adjusting the depth of a step and a tilting process in accordance with the curvature of a spectacle lens in processing a spectacle lens having a high curvature.

In order to achieve the above object, according to the present invention, a wheel axle moving rotary member (36) which moves pivotally with respect to a fixed frame is moved, and a wheel axle (34) and a wheel axle Contacting a rear cutting edge (54a) of a step and an incline machining cutter (50) coupled to one end of the wheel shaft (34) to the edge of the spectacle lens; And the lens surface 10 of the spectacle lens 10 while moving the spectacle lens 10 according to the shape of the spectacle frame and the curvature of the spectacle lens 10 in a state in which the wheel shaft 34 and the cutter 50 are rotated Edge of the spectacle lens 10 is brought into contact with the rear cutting edge 54a of the step and the slanting cutter 50 so that the edge of the lens surface 12 of the spectacle lens 10 is cut so that the stepped structure 14 is formed The method comprising:

According to the spectacle lens edge processing method of the present invention, it is possible to reduce the processing cost and the processing time of the spectacle lens by processing the edge of the spectacle lens into a stepped and inclined shape without using an expensive large-scale processing equipment. Further, according to the present invention, it is possible to easily perform the step and the slanting process at the edge of the spectacle lens by improving the grooving portion without the tilting function of the processing shaft. Further, according to the present invention, the depth of the step and the inclination can be adjusted according to the curvature of the spectacle lens.

1 is a view showing a process of processing a circular lens into a spectacle lens shape by using a grinder.
2 is a view showing various forms of the spectacle lens edge processing.
3 is a view showing a grooving unit used in a conventional lens processing machine.
4 is a view showing the structure of a spectacle lens edge processing apparatus which can be used in the present invention.
Fig. 5 is a perspective view (A) and a side sectional view (B) of a cutter for use in a method for processing a spectacle lens edge according to the present invention.
6 is an exemplary view of a spectacle lens in which an irregular stepped structure is formed by a step and a slanting cutter used in a spectacle lens edge processing method according to the present invention.
7 and 8 are views showing a process of forming a stepped structure and a tilted structure on the side surface of a lens by the spectacle lens edge processing method according to the present invention, respectively.
9 is a view showing various forms of a step and an inclined structure formed by the spectacle lens edge processing method according to the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The method for machining a spectacle lens edge according to the present invention is characterized in that the front and rear edges of a lens are cut (machined) by a conventional groove groove base 30 shown in Fig. 3, and stairs and inclination And is performed by a spectacle lens processing apparatus further equipped with a cutter for processing. 4 is a view showing the structure of a spectacle lens edge processing apparatus which can be used in the present invention.

As shown in FIG. 4, the spectacle lens edge processing apparatus used in the present invention has one end fixed to the fixed frame by the moving shaft 36a, and is pivotable about the moving shaft 36a A moving wheel shaft rotating member (36); A wheel shaft 34 mounted on the other end of the wheel shaft moving rotary member 36 and pivotally moved together with the wheel shaft moving rotary member 36 and rotated by driving the wheel rotating motor 44; And a step for cutting the edge of the spectacle lens and a cutter 50 for slanting work, which is coupled to one end of the wheel shaft 34, moves together with the wheel shaft 34 to contact the edge of the spectacle lens, and rotates together with the wheel shaft 34 do.

The fixing frame to which the one end of the wheel-shaft-moving rotary member 36 is coupled may be a frame of the spectacle lens-processing apparatus, which can pivotally move the wheel-shaft-moving rotary member 36, For example, it may be a fixing block 38 fixedly mounted on the spectacle lens processing apparatus. One end of the wheel-shaft-moving rotary member 36 is rotatably coupled to the fixed frame by the moving shaft 36a, and pivotally rotates about the moving shaft 36a to rotate the wheel- ), Or performs a pivotal rotational motion in which the wheel shaft (34) is detached from the spectacle lens (10). A wheel moving motor 42 for pivotally moving the wheel shaft moving rotary member 36 is mounted on the fixed block 38. The rotational force of the wheel moving motor 42 is transmitted through the worm gear 40, Thereby pivotally moving the wheel-shaft-moving rotary member 36. The rotation of the wheel shaft 34 and its associated step and slanting cutter 50 can be performed by the wheel rotating motor 44. [ The wheel rotating motor 44 is mounted on the fixed block 38 and the wheel rotating motor 44 is driven by a pulley and a belt (not shown) mounted inside the wheel shaft moving rotary member 36. [ The driving force of the wheel shaft 34 and the cutter 50 can be transmitted to the wheel shaft 34 and the cutter 50 to rotate the wheel shaft 34 and the cutter 50 at a high speed.

In the spectacle lens edge processing apparatus, the wheel shaft 34 performs only a pivoting two-step rotational movement reciprocating between the grinding position and the standby position. The grinding position is set so that the wheel shaft 34 is positioned substantially at a position close to the spectacle lens 10, specifically, in a direction perpendicular to the curved surface of the spectacle lens 10, And the cutter 50 for slanting contact with the edge of the spectacle lens 10 in parallel. The stand-by position means a position where the stepper and the slanting cutter 50 are spaced apart from the spectacle lens 10 and wait for lens processing. Here, if the direction perpendicular to the curved surface of the spectacle lens 10 (concretely, the machined surface of the edge) and the wheel shaft 34 are substantially horizontally positioned, the curved surface and step of the spectacle lens 10, 50 are substantially parallel to each other, the edge of the spectacle lens 10 can be efficiently processed by the rotation of the stepper and the slanting cutter 50. The reason why the curved surface of the spectacle lens 10 and the cutter 50 are positioned substantially parallel is that the curved surface of the spectacle lens 10 and the cutting surface of the cutter 50 are positioned as parallel as possible, ) Is in a parallel positional relationship such that the rear surface of the spectacle lens 10 can be cut. This is because the wheel shaft 34 is inclined at a predetermined angle so as to be vertically positioned on the lens 10 in accordance with the curvature of the lens 10 at the grinding position in the ordinary groove base 30 shown in Fig. The same meaning.

Fig. 5 is a perspective view (A) and a side sectional view (B) of a cutter for use in a spectacle lens edge processing method according to the present invention. 5, the step and slant cutter 50 includes a rotating body 52 fitted around the wheel shaft 34 and rotating together with the wheel shaft 34 and a rotating body 52 formed around the rotating body 52, And at least one cutting projection 54 for cutting the edge and the periphery of the lens. A rear cutting edge 54a for cutting the edges of lens surfaces (front surface and rear surface) contacting the rear surface of the cutting protrusion 54 is provided on the rear surface of the cutting protrusion 54 from a rear surface of the rotating body 52 For example, 1 to 10 mm, preferably 2 to 5 mm. In addition, the rear cutting edge 54a is preferably formed to be inclined at an angle of about 5 to 45 degrees, preferably 10 to 30 degrees, for example, 18 degrees so that the height of the outermost edge is the highest (See Fig. 5B). In this way, the rear cutting edge 54a is formed to protrude from the rear surface of the rotating body 52 and is formed to have a reduced height in the inward direction, so that the inside of the rear cutting edge 54a forms a concave groove. Therefore, unnecessary interference and contact between the lens and the rotating body 52 can be prevented even when the high-curvature lens of 6 or more curves is cut using the rear cutting edge 54a. The circular concave groove portion formed by the rear cutting edge 54a minimizes vibration and noise during lens processing, and improves the quality of the processed surface. Here, the rear surface represents the direction of the wheel rotating motor 44 that rotates the rotating body 52. A side cutting edge 54b is formed on the side surface (side surface) of the cutting projection 54 to cut the lens side contacting the side surface of the cutting projection 54 in an inclined shape. The cutting protrusions 54 are formed around the rotating body 52 at uniform intervals of 2 to 30 mm or so so as to smoothly cut the side surface and the periphery of the lens by the high speed rotation of the step and the slant cutting cutter 50 , Preferably 6 to 20, more preferably 8 to 16, and may be made of a high hardness metal. The radius R of the cutter 50 is typically 5 to 30 mm, preferably 8 to 20 mm. If the radius of the cutter 50 is too small, it takes an excessive time to cut the edge of the lens surface. If the radius is too large, fine cutting of the lens surface becomes difficult and cutting errors may occur.

4, in the spectacle lens edge processing apparatus used in the present invention, a grinding wheel 60 for forming grooves and / or a bevel wheel 70 may be further mounted on the wheel shaft 34 . The grinding wheel 60 for forming grooves rotates together with the wheel shaft 34 and has a concave groove 82 around the spectacle lens 10 due to friction with the circumference (side surface) of the spectacle lens 10 ), Which is the same device as the groove forming wheel 32 of Fig. The grinding wheel 60 for grooving has a tapered disk structure whose thickness decreases toward the end and a grinding blade is formed on the peripheral (side) end of the grinding wheel 60 for grooving do. The flat surface 70 around the spectacle lens 10 is ground to form a groove 82 on the periphery (side surface) of the spectacle lens 10 by rotating the grinding blade while making the surface contact with the periphery of the spectacle lens 10 (See FIG. 2). The chamfered wheel 70 is rotated together with the wheel shaft 34 to polish the periphery (side surface) or the edge of the spectacle lens 10 and to grind the periphery or edge of the spectacle lens 10, Device. 4, it is preferable that the groove forming polishing wheel 60, the step and the beveling cutter 50, and the beveling wheel 70 are sequentially positioned on the wheel shaft 34 from the rear side. It is preferable that the stepper and the slanting cutter 50 are located on the outer side (front surface) of the wheel shaft 34. However, it is preferable that the stepped height and the curvature of the lens, The thickness, and the like.

Fig. 6 is an illustration of an example of a spectacle lens in which an irregular step (stepped) structure is formed by a step and an incline machining cutter 50 used in the spectacle lens edge processing method according to the present invention. In the special type sports spectacle lens 10 as shown in Fig. 6, a portion denoted by reference numeral 90 is a portion where the spectacle frame is fitted. In order to sandwich the spectacle lens 10 on the spectacle frame, an irregular The edges of the spectacle lens 10 should be stepped along the shape. For such stepped machining of the irregular shape, the step and the slanting cutter 50 of the present invention should be used, and the conventional grinder 20 and the groove forming wheel 32 can not practically perform such machining. A general spectacle lens has a front curvature of 4 curves or less and a rear curvature usually has a curvature value of 4 to 6 depending on the power of the lens. As shown in Fig. 6, the spectacle lens 10 for sports is generally made of a difficult material difficult to process, such as polycarbonate or triavex material, and has a high curvature of 6 or more curves. Therefore, in the stepped machining of the high-hardness and high-curvature spectacle lens 10 as shown in Fig. 6, the cutter 50 of the present invention having a small diameter and performing cutting processing should be used.

7 is a view showing a process of forming a stepped structure on the side surface of a lens by the spectacle lens edge processing method according to the present invention. In order to form a stepped structure at the rim of the spectacle lens using the spectacle lens processing apparatus of the present invention, as shown in Fig. 7, first, the wheel-shaft-moving rotary member 36, which is pivotally moved with respect to the fixed frame The wheel shaft 34 coupled to the wheel shaft moving rotary member 36 and the stepped and slant cutter 50 coupled to one end of the wheel shaft 34 are moved to the grinding position So that the rear cutting edge 54a of the slanting cutter 50 is brought into contact with the edge of the spectacle lens 10. The spectacle lens 10 is moved in accordance with the shape of the spectacle frame and the curvature of the spectacle lens 10 while the wheel shaft 34 and the cutter 50 are rotating at a high speed, The edges of the lens surface 12 of the spectacle lens 10 are cut so that the step structure 14 is formed by bringing the edge of the surface 12 into contact with the rear cutting edge 54a of the step and the slanting cutter 50. [ do.

Since the step and incline cutter 50 according to the present invention is formed with the rear cutting edge 54a protruded, the recessed groove is formed in the inner side in the shape of "]" in the side view of the cutting tool. Therefore, even when the spectacle lens 10 having a high curve is stepped, it is possible to prevent interference between the spectacle lens 10 and the cutter 50 without being disturbed by the other portion 10a of the spectacle lens 10, The stepped structure 14 can be formed along the curved surface of the spectacle lens 10. [ The curvature and thickness of the spectacle lens 10 and the shape and position of the rear cutting edge 54a are three-dimensionally simulated in the step structure 14 to minimize the interference between the spectacle lens 10 and the cutter 50 The stepped structure 14 that is the same as the curved shape of the spectacle lens 10 can be machined by causing the rear cutting edge 54a to move along the curvature of the spectacle lens 10 have. That is, in forming the step structure 14, the spectacle lens 10 moves in a radial direction (arrow direction in FIG. 7) along the curved surface of the spectacle lens 10, . Therefore, the step and the slanting cutter 50 of the present invention can form a stepped structure in the spectacle lens 10 having various curvatures by using one cutter 50. [

When a part of the edge of the lens surface 12 of the spectacle lens 10 is cut as described above, the spectacle lens 10 is moved along the irregular shape 90 shown in Fig. 6, (14) are continuously formed. At this time, depending on the curvature and thickness of the spectacle lens 10, the entry depth and step of the rear cutting edge 54a can be adjusted, and the entry depth and step can be adjusted for each position in one lens 10. For example, a step can be formed in the 6 and 12 o'clock direction of the lens 10 at a depth of 1 mm < 3 > and at 2 o'clock at the 9 o'clock position, which is set differently depending on the frame to which the lens 10 is inserted . The three-dimensional simulation process is repeated for each position where the step structure 14 is formed so that a step is formed on the periphery of the spectacle lens 10 with an algorithm in which the interference between the spectacle lens 10 and the cutter 50 is minimized. The structure 14 can be continuously formed. For example, when three points A, B, and C are successively machined, the wheel interference amount is calculated and processed at the A position, then the amount of interference is subtracted from the A position at the B position, And the interference between the spectacle lens 10 and the cutter 50 is minimized in a manner such that the amount of interference by the B position is reduced (C processing amount is reduced) (14) can be formed.

8 is a view showing a process of forming a tilted structure on the side surface of the lens by the spectacle lens edge processing method according to the present invention. In order to form the inclined structure at the edge of the spectacle lens using the spectacle lens processing apparatus of the present invention, as shown in Fig. 8, first, the cutter for slanting 50 is rotated at a high speed, The peripheral edge 16 of the spectacle lens 10 is brought into contact with the side cutting edge 54b of the slanting cutter 50 by moving the processed spectacle lens 10, . That is, the side cutting edge 54b cuts the outer frame 16 of the spectacle lens 10 inserted into the spectacle frame so that the shape of the spectacle lens 10 exactly matches the spectacle frame, The peripheral shape of the spectacle lens 10 can be processed so as to be easily inserted. When the periphery 14 of the spectacle lens 10 is partially cut to form a tilted structure, the spectacle lens 10 is moved along the irregular shape 90 shown in Fig. 6, So that both inclined structures are formed. FIG. 9 is a view showing various shapes of a step and an inclined structure formed by a spectacle lens edge processing apparatus according to the present invention. As shown in Fig. 9, according to the spectacle lens edge processing apparatus according to the present invention, the edge inclination (A in Fig. 9), the bevel inclination (Fig. 9B), the step inclination C), and T-slope processing (Tevel (D in Fig. 9)).

Normally, in order to process a step or an inclined shape around a lens edge or a periphery of a sunglass or a goggle type lens having a rear curvature of 6 curves or more on the spectacle lens 10, a grinding device whose tilting angle changes is used, The tilting angle of the grinding apparatus must be freely changed according to the curvature. Further, in order to change the tilting angle of such a polishing apparatus, an additional motion joint should be formed in the polishing apparatus. On the other hand, by using the step and slant cutting cutter 50 according to the present invention, it is possible to perform various types of step and slant processing on the lens edge having a curvature of 6 curves or more without changing the inclination angle of the wheel shaft 34 have. Further, in the spectacle lens processing apparatus according to the present invention, since the stepped and inclined cutter 50 and the groove forming abrasive wheel 60 are located on the same wheel shaft 34, It is possible to drive the stepper and the slanting cutter 50 on the shaft, and the grooving, stepping and slanting of the spectacle lens can be performed more efficiently.

Claims (4)

  1. A wheel axle moving rotary member 36 that moves pivotally with respect to the fixed frame is moved and a wheel shaft 34 coupled to the wheel axle moving rotary member 36 and a step And the rear cutting edge (54a) of the slanting cutter (50) to the edge of the spectacle lens; And
    The spectacle lens 10 is moved in accordance with the shape of the spectacle frame and the curvature of the spectacle lens 10 while the wheel shaft 34 and the cutter 50 are rotated so that the lens surface 12 of the spectacle lens 10, The edge of the lens surface 12 of the spectacle lens 10 is cut by contacting the edge with the rear cutting edge 54a of the step and the slanting cutter 50 so that the stepped structure 14 is formed so as to fit the spectacle frame , ≪ / RTI >
    The step and slant cutter 50 includes a rotating body 52 that is fitted to the wheel shaft 34 and rotates together with the wheel shaft 34 and a rotating body 52 that is formed around the rotating body 52 to cut the edges and peripheries of the lens And a rear cutting edge 54a for cutting the edge of the lens surface 12 contacting the rear surface of the cutting protrusion 54 to form a stepped structure is formed on the rear surface of the cutting protrusion 54, Is formed so as to protrude from the rear surface of the rotating body 52. The rear cutting edge 54a is formed to have an inclined structure at an angle of 5 to 45 degrees so that the height of the outermost edge is the highest, A side surface cutting edge 54b of a linear structure forming a tilted structure by cutting the side surface of the lens contacting the side surface of the cutting projection 54 in an inclined shape is formed on the side surface of the cutting projection 54,
    The wheel shaft 34 performs only a pivotal two-step rotational movement reciprocating between the grinding position and the standby position, and the grinding position is set such that the stepped portion coupled to the wheel shaft 34 and the slitter- And the standby position is a position where the step and the incline machining cutter 50 are spaced apart from the spectacle lens 10 to wait for lens processing,
    In forming the step structure 14, the movement of the spectacle lens 10 proceeds in a radial direction along the curved surface of the spectacle lens 10,
    The curvature and the thickness of the spectacle lens 10 and the shape and the position of the rear cutting edge 54a are simulated three-dimensionally and the algorithm and the spectacle lens 10, in which the interference between the spectacle lens 10 and the cutter 50 is minimized, Wherein the rear cutting edge (54a) is moved along the curvature of the spectacle lens (10) to form a stepped structure (14) identical to the curve shape of the spectacle lens (10).
  2. delete
  3. delete
  4. The method according to claim 1, wherein the circumferential edge (16) of the spectacle lens (10) is brought into contact with the side cutting edge (54b) of the slanting cutter (50) while rotating the slanting cutter Further comprising the step of cutting the perimeter (16) of the lens (10).
KR1020160174943A 2016-12-20 2016-12-20 Method for processing edge of eyeglass lens KR101887016B1 (en)

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KR1020160174943A KR101887016B1 (en) 2016-12-20 2016-12-20 Method for processing edge of eyeglass lens
US15/642,733 US10576600B2 (en) 2016-12-20 2017-07-06 Apparatus for processing edge of eyeglass lens

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KR20180072040A KR20180072040A (en) 2018-06-29
KR101887016B1 true KR101887016B1 (en) 2018-08-10

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KR100623878B1 (en) * 2004-11-15 2006-09-19 주식회사 휴비츠 Apparatus and method for processing eyeglass lens
KR101476406B1 (en) * 2012-10-26 2014-12-26 차인선 Pcd milling cutter for lens processing

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