JP2000218487A - Lens smoothing and polishing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To cope with various works by a monoaxial grinding wheel spindle by comprising at least a grinding tool for rough grinding or grinding tool for finishing, and comprising at least an monoaxial tool holding rotary shaft for holding the tool. SOLUTION: To form a V-shaped hollow on a lens to be finished, ground into the ball shape, a grinding wheel for finishing is held on a grinding wheel spindle 51 of a tool holding mechanism 60 for a grinding wheel for rough grinding, a driving motor 52 is operated to transmit the rotation of the driving motor 52 to the tool rotary shaft 51 by rotating the power transmitting mechanism 53, and the grinding wheel for finishing is rotated and driven. In this condition, the driving motor 52 is operated and controlled by means of an operation control circuit on the basis of the edge thickness data, for finishing a peripheral edge of the lens to be finished by a peripheral part of the grinding wheel for finishing, and then the V-shaped hollow is formed by a V-shaped groove of the grinding wheel for finishing on the peripheral edge of the lens to be finished grounded into the ball shape.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lens grinding apparatus for processing a peripheral portion of a spectacle lens.

[0002]

2. Description of the Related Art Conventionally, for example, Japanese Patent Application Laid-Open No. 9-25399
As disclosed in Japanese Patent Application Laid-Open No. 9-294000 and Japanese Patent Application Laid-Open No. 9-254000, there is known a lens grinding apparatus for processing a large number of eyeglass lenses in a short time by arranging a plurality of grinding wheels for grinding eyeglass lenses.

[0003]

However, in the above-described lens grinding apparatus, a grinding wheel dedicated to the processing must be added to an existing grinding wheel shaft or a new grinding wheel shaft must be provided each time the type of processing increases. In addition, there arises a problem that the driving mechanism becomes complicated and the entire device becomes large.

[0004] Also, when processing eyeglass lenses corresponding to rimless frames, wire frames, and the like in which the lens frames of recent eyeglass frames have been eliminated, similarly, a new grindstone shaft must be separately arranged.

[0005] In addition, by adding an edge thickness shape measuring function for measuring the edge surface shape of the spectacle lens to the conventional lens grinding device, a bevel grinding process with a good appearance that matches the edge surface shape is realized. Was desired.

SUMMARY OF THE INVENTION Accordingly, a first object of the present invention is to provide a lens grinding apparatus provided with a holding rotary shaft for exchangeably holding an arranged wheel spindle tool in order to realize various types of processing. .

A second object of the present invention is to provide an edge thickness measuring tool for measuring the edge thickness shape of a spectacle lens, and to share a holding rotation axis to use a dedicated drive shaft. An object of the present invention is to provide a lens grinding apparatus capable of simultaneously measuring the edge thickness shape without providing the same.

[0008]

In order to achieve the first object, a first aspect of the present invention is a lens grinding apparatus for grinding an unprocessed spectacle lens, wherein at least a rough grinding apparatus is provided. A grindstone tool or a finishing grinding stone tool is arranged, and at least one tool holding rotary shaft for holding any one of the tools is provided.

According to a second aspect of the present invention, there is provided a lens grinding apparatus for grinding an unprocessed spectacle lens sandwiched by a lens rotating shaft, wherein at least a rough grinding wheel tool is provided around the axis of the lens rotating shaft. Alternatively, a grinding wheel tool for finish grinding is arranged, and at least one tool holding rotary shaft for holding any one of the tools is provided.

In a third aspect of the present invention, there is provided a lens grinding apparatus for grinding an unprocessed spectacle lens sandwiched between lens rotation axes.
A mounting table for mounting at least a grinding wheel tool for rough grinding or a grinding wheel tool for finish grinding, and at least one tool holding rotation axis for holding any one of the tools, the lens rotation axis and the tool holding The distance between the shaft and the rotating shaft is adjusted, and the peripheral portion of the spectacle lens is ground by the tool held by the tool holding rotating shaft.

A fourth aspect of the present invention is a lens grinding apparatus for processing a spectacle lens by applying a tool held by a tool holding rotary shaft to a spectacle lens while rotating the spectacle lens. Arrange multiple correspondingly,
The tool holding rotary shaft automatically holds any one of the tools according to the type of machining.

[0012] Further, according to a fifth aspect of the present invention, in the lens grinding apparatus of the fourth aspect, in order to pinch the spectacle lens and turn a processed portion of the spectacle lens toward a tool held by the tool holding rotary shaft. A rotatable lens rotation axis is provided, and the tool is arranged around the axis of the lens rotation axis.

According to a sixth aspect of the present invention, in the lens grinding apparatus according to the fifth aspect, a mounting table for mounting the tool in an annular shape around the axis of the lens rotation axis is provided, and A driving motor for driving the rotating table is provided, and the driving motor rotationally drives the mounting table so that the tool holding rotary shaft can easily hold the tool to be held.

According to a seventh aspect of the present invention, there is provided a lens grinding apparatus according to any one of the first to sixth aspects, wherein the edge grinding shape of the eyeglass lens is measured. A thickness measuring tool is arranged.

The invention of claim 8 is the lens grinding apparatus according to any one of claims 1 to 6, wherein the rough grinding wheel tool, the finish grinding wheel tool, the chamfering wheel tool, and the mirror surface processing. A grinding wheel tool, a super-finishing grinding wheel tool, a drilling tool, a grooving tool, and a cutter.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. First Embodiment [Configuration] FIG. 1 shows the overall configuration of a lens grinding apparatus according to the present invention.

In FIG. 1, reference numeral 1 denotes a housing which covers the entire apparatus. The housing 1 has a bottom wall (base) 2 and side walls (side surfaces).
3, 3 'and a ceiling wall (upper wall) 4.

The bottom wall 2 has a lens rotating shaft 5 (see FIGS. 6 and 7) vertically penetrating the bottom wall 2 vertically and a tool magazine (tool storage portion) 6 provided on the lens rotating shaft 5.
And a rotation drive device 7 for rotating the lens rotation shaft 5 is provided close to the side wall 3. <Tool magazine 6> This tool magazine 6 has a bottom wall 2
A circular base plate (circular rotary table (disc) serving as a mounting table) 8 provided on the lens rotating shaft 5 and a cylindrical shape attached along the side of the base plate 8 It has a side wall 9 and an umbrella-shaped lid 10 whose central portion is held rotatably and airtightly relative to the lens rotation shaft 5 and covers the upper end of the cylindrical side wall 9 (in the figure, it is illustrated in an airtight manner for convenience of explanation). Absent.). The umbrella-shaped lid 10 is provided with an opening 10a, and this opening 10a is
b. As shown in FIG.
A cut is provided radially from the center of Ob to prevent the penetration of grinding water into the tool magazine 6 during machining. In addition, the umbrella-shaped lid 10
A notch 10c is formed at the edge of the opening corresponding to the opening 10a.

On the base plate 8, a plurality of tool holding members a1 to a9 arranged at a constant pitch in the circumferential direction are attached at the positions shown on the stages S1 to S9 in FIG. I have. In this embodiment, the tool holding members are arranged at nine positions a1 to a9, but this arrangement can be increased.

The tool holding members a1 to a9 are arranged around the lens rotation axis 5 and can hold various tools (i) to (v) shown in FIG. (I) Coarse Grinding Tool b as a Grinding Stone Tool for Surface Grinding The coarse grinding tool b has a coarse grinding grindstone b1 as a grinding stone tool for surface grinding, optional coarse grinding tools b2 and b3, and the like. A coarse grinding cutter is used for the coarse grinding tool b2. The rough grinding tool b3 is used for a fabric lens having a special composition such as polycarbonate, and a grinding wheel portion in contact with the lens has a granular shape so that heat generated during grinding does not melt the polycarbonate or the like. Further, a grooving tool b4 having a grooving portion at the tip of the rough grinding wheel b1 is prepared. (Ii) Machining Tool c This machining tool c is a finishing grinding wheel (finish grinding wheel tool) c1 with an annular V-groove for beveling, a finishing grinding wheel (finish grinding wheel tool) c2 with a groove machining projection, and a hole for drilling. Drill c3 as a tool, optional finish grinding wheel (finish grinding wheel tool) c4 as a grinding wheel tool for chamfering
Etc.

The finish grinding wheel c1 has a cylindrical portion having a peripheral surface portion for flat finishing and an annular V-groove for beveling. The finish grinding wheel c2 has a cylindrical portion having a peripheral surface portion for planar finish processing, and an annular protrusion for groove finish processing. The finish grinding wheel c4 has a cylindrical portion having a peripheral surface portion for planar finishing, an annular V-groove for beveling, and a tapered surface provided at the tip for chamfering. (Iii) Polishing grindstone (polishing tool) d, which is a grindstone tool for mirror polishing This polishing grindstone d includes a polishing grindstone d1 with a V-groove for bevel polishing, a polishing grindstone d2 with a groove polishing protrusion, and the like.

The polishing grindstone d1 has a cylindrical portion having a peripheral surface portion for planar polishing and an annular V-groove for bevel polishing. The polishing grindstone d2 has a columnar portion having a peripheral surface portion for planar polishing, and an annular protrusion for groove polishing. (Iv) A super-polishing grindstone (super-polishing tool) e which is a super-mirror polishing grindstone tool (super-grinding grindstone tool) is a super-polishing grindstone e with a V-groove for bevel super-polishing.
1. It has a super-polishing grindstone e2 with a groove super-polishing projection.

The super-polishing grindstone e1 has a cylindrical portion having a peripheral surface for planar super-polishing and an annular V-groove for bevel super-polishing. The superpolishing grindstone e2 has a cylindrical portion having a peripheral surface portion for planar superpolishing, and an annular protrusion for groove superpolishing. (V) Eyeglass lens edge shape measuring tool f Note that rough grinding wheel b1 and optional rough grinding tool b
2, b3, b4, finish grinding wheel c1, finish grinding wheel c
2. A tool holding member for holding a drill c3, an optional finish grinding wheel c4, a polishing wheel d1, a polishing wheel d2, a super-polishing wheel e1, a super-polishing wheel e2, etc. is formed in a cylindrical shape. The cylindrical tool holding member has a rough grinding wheel b1 and optional rough grinding tools b2, b3, b
4. Finish grinding wheel c1, Finish grinding wheel c2, Drill c
3. Optional finish grinding wheel c4, polishing wheel d1, polishing wheel d2, super-polishing wheel e1, super-polishing wheel e2, etc. are removably fitted from above. Further, the edge thickness measurement tool f is removably fitted into a tool holding member having a holding groove (not shown) that opens upward.

Therefore, for example, the tool holding member a1 of the stage S1 is used to hold the edge thickness measuring tool f of the unprocessed spectacle lens (the lens L to be inspected), and the tool holding member a2 of the stage S2 is provided with a rough grinding wheel (rough). Grinding wheel tool) b
1, b2, b3, etc., and a finishing grindstone c, which is a beveling tool, is attached to the tool holding member a3 of the stage S3.
1 or c4, the tool holding member a4 of the stage S4 holds the polishing grindstone d1 as a beveling tool, and the tool holding member a5 of the stage S5 holds the super-polishing grindstone e1 as a beveling tool. Stage S6
Drill c as a tool for drilling a tool holding member a6
3 is held, the tool holding member a7 of the stage S7 holds the finishing grinding wheel c2 as a digging cutter, the tool holding member a8 of the stage S8 holds the polishing grindstone d2 as a digging cutter, and the tool of the stage S9 is held. The super-abrasive grindstone e2, which is a grooving cutter, is held by the holding member a9. In FIGS. 1, 6, and 7, the arrangement of the tool holding members a2 and a3 in the tool magazine (tool storage unit) 6 is shown at a position shifted by 180 ° for convenience of explanation. It is located next to it as shown in FIG.

A bearing 11 is interposed between the base plate 8 and the bottom wall 2, and the bearing 11 rotatably holds the base plate 8 and the lens rotation shaft 5 on the bottom wall 2. <Rotation drive device 7> The rotation drive device 7 transmits a drive motor (electric drive means) 12 attached to the lower surface of the bottom wall 2 via a bracket (not shown) and the rotation of the drive motor 12 to the lens rotation shaft 5. It has a driving force transmitting means (driving force transmitting mechanism) 13. The driving force transmission mechanism 13 includes a driving gear 1 attached to an output shaft 12 a of the driving motor 12.
And a driven gear 15 attached to the lower end of the lens rotating shaft 5 and meshing with the drive gear 14. With this configuration, when the drive motor 12 is operated, the drive motor 12
Is transmitted to the lens rotation shaft 5 via the gears 14 and 15. <Clamping device 20> The lens clamping device 2 is provided on the side wall 3.
0 is attached. This lens clamp device 20
Are fixed to a base (clamp work base) 21 fixed to the center of the inner surface of the side wall 3 in the vertical direction, and to protrusions 21a, 21a vertically arranged vertically and provided above and below the tip of the base 21. A feed screw 22 whose upper and lower ends are rotatably held; a feed screw 22 fixed on the base 21;
Drive motor (clamp work drive)
23 and a feed screw 2
2 has a slider (clamp work holding member) 24 through which the screw 2 is screwed and inserted, and a lens rotating shaft (work holding shaft) 25 attached to the slider 24.

The slider 24 is provided with a key (not shown) that engages with a vertically extending groove (not shown) provided on the base 21.
And can be moved up and down without rotating around the axis of the feed screw 22. The slider 24
Has a vertical portion 24a, and a bent portion 24b that extends at a lower end portion of the vertical portion 24a at a lower end opposite to the side wall 3 so as to be slightly inclined. The tip of the bent portion 24b is the lens rotation axis 5
A lens rotating shaft (work holding shaft) 25 facing the upper end of the lens rotating shaft 5 is held at the tip of the bent portion 24b. The lens rotation shaft 25 is held by the bent portion 24b coaxially with the lens rotation shaft 5 and rotatable around the axis. Note that a tool moving space 26 is formed above the bent portion 24b.

With this configuration, when the drive motor 23 is rotated forward or backward, the feed screw 22 is rotated forward or backward, the slider 24 is moved up and down by the feed screw 22, and the lens rotating shaft 25 is moved in the Z direction. (Up and down direction). Here, the clamp work is a lens holding shaft for holding an unprocessed spectacle lens which is a work. <Tool moving device 30> A tool moving device 30 for moving a clamp tool (tool holding and rotating shaft) in the Y direction (horizontal direction in FIG. 1) and the Z direction is provided on the ceiling portion 4 of the housing 1.
Is provided. Here, the clamp tool is a shaft for holding and rotating various tools for measuring the edge shape of an unprocessed spectacle lens of a work or for grinding.

The tool moving device 30 has a base 31 attached to the lower surface of the ceiling wall 4 and protrusions 31a and 31b provided on left and right ends of the base 31 so as to be rotatable at both ends. A held Y-direction feed screw 32,
A driving motor (driving means) 3 fixed to the base 31 by a bracket (not shown) and rotationally driving the Y-direction feed screw 32
3, a Y-direction slider 34 held by the Y-direction feed screw 32 and driven in the Y-direction by rotation of the Y-direction feed screw 32
Having. The slider 34 can be driven forward and backward only in the Y direction without rotating around the axis of the feed screw 32 by a key groove, a key, or the like (not shown). Therefore, the Y-direction slider 34 is controlled to move leftward or rightward by rotating the drive motor 33 forward or backward and rotating the feed screw 32 forward or backward.

The tool moving device 30 is vertically disposed vertically and has a Z-direction feed screw 35 whose upper and lower ends are rotatably held by a Y-direction slider 34, and is held by the Y-direction slider 34. Drive motor 36, a power transmission mechanism (power transmission means) 37 for transmitting the rotation of the drive motor 36 to the Z-direction feed screw 35, and held by the Z-direction feed screw 35 and rotated in the Z-direction by the rotation of the Z-direction feed screw 35. And a Z-direction slider 38 driven to move. This slider 38
Can be driven forward and backward only in the Z direction without rotating around the axis of the feed screw 35 by means of a key groove or a key (not shown). The power transmission mechanism 37 includes a timing pulley (drive pulley) 3 fixed to an output shaft 36 a of the drive motor 36.
9, a timing pulley (driven pulley) 40 fixed to the upper end of the Z-direction feed screw 35, and a timing belt 41 bridged between the pulleys 39 and 40.

With this configuration, by rotating the drive motor 36 forward or reverse, the forward or reverse rotation of the drive motor 36 is transmitted to the Z-direction feed screw 35 via the timing pulley 39, the timing belt 41, and the timing pulley 40. , The Z-direction feed screw 35 is rotated forward or backward, and the rotation of the Z-direction feed screw 35 causes the Z-direction slider 38 to rotate.
Is moved upward or downward.

Further, the tool moving device 30 includes a tool rotation driving mechanism 50 (see FIG. 2) provided on the Z-direction slider 38 and a tool holding mechanism 60 (FIG. 2) for holding a tool driven to be rotated by the tool rotation driving mechanism 50. 1, see FIG. 2). The Z-direction slider 38 has a protrusion 38 on the side.
a, 38b. <Tool rotation drive mechanism 50> Tool rotation drive mechanism 50
A bearing 51a fixed in the Z-direction slider 38;
A tool drive shaft 51 vertically disposed vertically and rotatably held by a bearing 51a, a drive motor (drive means) 52 fixed to the projection 38a, and a tool drive shaft for rotating the drive motor 52. A power transmission mechanism (power transmission means) 53 for transmitting the power to the power transmission mechanism 51 is provided.

The power transmission mechanism 53 includes a drive motor 52
, A driven pulley 54 fixed to the output shaft 52 a, a driven pulley 55 fixed to the upper end of the tool rotation shaft 51, and a belt 56 stretched over the pulleys 54, 55.

With this configuration, when the drive motor 52 is operated, the rotation of the drive motor 52 is transmitted to the tool drive shaft 51 via the drive pulley 54, the belt 56, and the driven pulley 55. <Tool holding mechanism 60> The tool holding mechanism 60 has a clamp member 61 held at the lower end of the tool rotation shaft 51 as shown in FIG. The clamp member 61 is provided with a so-called collet chuck type clamp mechanism, and the cylindrical portion 6 rotatably held at the lower end of the tool rotating shaft 51.
2 and a plurality of elastic holding claws (elastic clamp claws) 63 provided at the lower end of the cylindrical portion 62 at equal pitches in the circumferential direction.
The outer surfaces of the plurality of elastic holding claws 63 form a conical tapered surface that tapers downward.

The tool holding mechanism 60 includes a clamp shaft 6 which penetrates vertically through the projections 38a, 38b of the Z-direction slider 38 and is vertically movably held by the projections 38a, 38b.
4 and 64, and a claw pressing member 65 attached to the lower ends of the clamp shafts 64, 64. The claw pressing member 65 includes a bearing 65a, and a claw pressing surface 65a 'extending in the circumferential direction along the outer surfaces of the plurality of elastic holding claws 63 is provided inside the bearing 65a.

Further, the tool holding mechanism 60 includes a compression coil spring 6 wound around the clamp shafts 64, 64 and interposed between the projections 38a, 38b and the claw pressing member 65.
6, 66 and a shaft driving means (pressing member driving means) 67 for driving the clamp shafts 64, 64 to move up and down. An engaging pin 65b protruding downward at the edge of the claw pressing member 65
Are protruding. The engagement pin 65b is adapted to engage with the notch 10c of the umbrella-shaped lid 10 before the tool replacement operation.

The shaft driving means 67 includes clamp shafts 64, 64.
Rectangular frames 68, 68 provided integrally with the upper end of the Z-direction slider 38, and a supporting member 69 attached to the upper end of the Z-direction slider 38.
And an interlocking shaft 70 rotatably held by a support member 69.
And the clamp shaft 6 fixed to both ends of the interlocking shaft 70.
The cams 71, 71 engage with the lower surfaces of the upper walls 68a, 68a of the 4,64 square frames 68, 68, and the shaft driving means 72 for rotating and driving the interlocking shaft 70.

The shaft driving means 72 has a driving motor 73 fixed to the support member 69 and a power transmission mechanism 74 for transmitting the rotation of the driving motor 73 to the interlocking shaft 70. The power transmission mechanism 74 has a bevel gear (drive gear) 75 fixed to the output shaft 73 a of the drive motor 73, and a bevel gear (driven gear) 76 fixed to the interlocking shaft 70 and meshing with the bevel gear 75.

With this configuration, the rotation of the drive motor 73 is controlled by the cam 7 via the bevel gears 75 and 76 and the interlocking shaft 70.
1, 71. <Tool rotation structure> Each of the tools b1 and the like in FIG.
As shown in FIG. 5, the tool body 80 and the tool body 8
0 is provided at the upper end. And
The cylindrical portion 80 'of the tool b1 and the like is held (sandwiched) by the elastic holding claw 63 pressed by the claw pressing member 65.

As described above, the rotation of the driving motor 52 transmitted via the driving pulley 54, the pelt 56 and the driven pulley 55 is transmitted to the tool rotating shaft 51, and the elasticity provided at the tip of the tool rotating shaft 51 is provided. The information is transmitted to the holding claws 63.

Since the tool rotating shaft 51 is held by the bearing 51a and the elastic holding claw 63 is held by the bearing 65a provided on the claw pressing member 65, the cylindrical portion 62 and the elastic holding claw 63 rotate integrally. And the drive motor 52
Is directly transmitted to the tool b1 and the like.

A rotatable bearing cylinder is provided at the upper end of the tool main body 80, and when the bearing cylinder is held by the clamp member 61 at the upper end of the tool main body 80 and the lower end of the tool rotating shaft 51, By providing clutch teeth arranged in a ring in the direction and engaged with each other, the rotation of the drive motor 52 can be transmitted to the tool b1 and the like. <Edge thickness measuring tool f> The edge thickness measuring tool (touch sensor) f as the edge thickness measuring means includes a plurality of elastic holding claws 6 of the clamp member 61 as shown in FIG.
It has a shaft portion 90 that is pinched (held) between the three, and a measuring head 91 provided on the shaft portion 90.

The measuring head 91 has a box 92 provided integrally with the shaft portion 90 and a contact holding member 93. The contact holding member 93 includes a vertical portion 93a extending vertically and held vertically movably by the box 92, and a horizontal portion 93b connected to upper and lower portions of the vertical portion 93a in parallel in the same direction. , 93c in a substantially U-shape. Flanges f1 and f2 are formed at an intermediate portion of the vertical portion 93a with a vertical interval.

The measuring head 91 includes a coil spring 94 interposed between the upper wall 92a of the box 92 and the flange f1, and a coil spring 95 interposed between the lower wall 92b of the box 92 and the flange f2. And contacts 96 and 97 attached to the distal ends of the horizontal portions 93b and 93c downward and upward, respectively, and movement detection means 98 interposed between the contact holding member 93 and the box 92.

The movement detecting means 98 is provided at the center of the vertical portion 93a of the contact holding member 93, and is provided at the substantially center of the box 92 to detect the movement of the movement detecting member 98a. It has a detecting means 99 for detecting magnetically or electrically. The output from the detection means 99 is input to the transmission circuit 99a, and the output signal from the transmission circuit 99a is transmitted by radio waves via the antenna 99b (see FIG. 8). <Control Circuit> The transmission signal from the above-described antenna 99b is transmitted to the receiving circuit 1 via the antenna 100 as shown in FIG.
01, and the output from the receiving circuit 101 is input to the arithmetic and control circuit 102. Also,
The arithmetic and control circuit 102 includes drive motors 12, 23, 3
6, 52, 73, etc. are driven and controlled. A pulse motor is used for the drive motors 12, 23, 36, 52, 73 and the like.

Further, the arithmetic control circuit 102 stores the lens shape data (θi, ρ) from the frame shape measuring device 103.
i) [i = 0, 1, 2, 3... n] is input. The arithmetic control circuit 102 also receives an ON signal from a lens holding switch 105 that drives the drive motor 23 to rotate forward and lowers the slider 24.
Is turned on, the ON signal from the lens holding release switch 106 for raising the slider 24 and the mode selection signal from the mode selection switch 107 are input. Reference numeral 108 denotes a memory (recording unit or storage unit) connected to the arithmetic control circuit 102, and reference numeral 109 denotes a display device (display unit) such as a liquid crystal display connected to the arithmetic control circuit 102. [Operation] Next, the operation of the spectacle lens grinding apparatus having such a configuration will be described. 9 to 15 (see "(ii) Processing sequence of lens to be processed") for the description of this operation, but for convenience of illustration, reference numerals are omitted for details. (I) Function of each part (A) Input of lens shape data The arithmetic and control circuit 102 processes lens shape data (θi, ρi) such as shape data of left and right lens frames of an eyeglass frame, shape data of a template and a model lens. Is the frame shape measuring device 1
When the data is input from 03, the input lens shape data is stored in the memory 108. (B) Holding of the lens to be processed When the lens holding release switch 106 is turned on, the arithmetic control circuit 102 drives the drive motor 23 in the reverse direction, rotates the feed screw 22 in the reverse direction, and raises the slider 24 to the uppermost position. And stop. In this state, since the upper end of the lens rotation shaft 5 and the lower end of the lens rotation shaft 25 are open, a rubber suction cup (suction cup) as shown in FIG.
A lens L to be processed (a circular unprocessed lens, ie, a fabric lens) L to which Q has been adsorbed can be set at the upper end of the lens rotation shaft 5. After this setting, the lens holding switch 105 is turned on.
I do. Thereby, the arithmetic control circuit 102 drives the drive motor 23 in the normal direction, rotates the feed screw 22 in the normal direction, lowers the slider 24 by a predetermined amount, and places the lower end of the lens rotation shaft 5 on the upper surface of the lens L to be processed. Press at the specified pressure. As a result, the lens L to be processed is sandwiched between the lens rotation shafts 5 and 25 (FIG. 28). (C) Tool selection Next, the mode selection switch 1 while looking at the display device 109
The operator operates 07 to select a lens edge thickness measurement mode, a grinding tool selection mode, or the like displayed on the display device 109.

Here, among the plurality of tool holding members a1 to a9 on the base plate 8, the one holding the edge thickness measuring tool f of the spectacle lens is a1, and the tool holding mechanism 6
The tool exchange control is performed when the coarse grinding wheel b1 is held between the plurality of elastic holding claws 63 and the tool holding member of the coarse grinding wheel b1 is a2 and the lens edge thickness measurement mode is selected. Will be described.

According to the selection of the lens edge thickness measurement mode, the arithmetic and control circuit 102 controls the operation of the drive motor 12 to rotate the lens rotating shaft 5, and integrates the base plate 8, the cylindrical side wall 9 and the umbrella-shaped lid 10. Rotate to. At this time, the operation of the drive motor 12 is controlled by the notch 10 c of the umbrella-shaped lid 10.
Is performed by the drive pulse until the position is located at the right end in FIG. 1 (the right end as shown in FIGS. 4A and 4B). And the umbrella-shaped lid 10
When the notch 10c is located at the right end in FIG. 1 (the right end as shown in FIGS. 4A and 4B), the operation of the drive motor 12 is stopped.

Thereafter, the arithmetic and control circuit 102 drives and controls the drive motor 33 to rotate the feed screw 32, and controls the movement of the Y-direction slider 34 rightward in FIG.
5b is moved to the right side of the umbrella-shaped lid 10 so that the drive motor 3
Stop 3

After the stop, the arithmetic and control circuit 102 controls the operation of the drive motor 36 to transmit the rotation of the drive motor 36 to the feed screw 35 via the timing pulley 39, the timing belt 41 and the timing pulley 40. The Z-direction slider 38 is lowered by the rotation of the feed screw 35 at this time. The lowering control of the Z-direction slider 38 is performed by the arithmetic and control circuit 102 until the lower end of the engaging pin 65b is located on the side of the notch 10c. Then, the arithmetic and control circuit 102 controls the drive of the drive motor 33 to control the feed screw 3.
2 by rotating the Y-direction slider 34 in FIG.
The engagement pin 65b is notched 10c by controlling the movement in the middle left direction.
After that, the drive motor 33 is stopped.

Next, the arithmetic and control circuit 102 controls the operation of the drive motor 12 to rotate the lens rotating shaft 5 and integrally rotate the base plate 8 and the cylindrical side wall 9. Then, the arithmetic and control circuit 102 controls the operation of the drive motor 12 until the tool holding member a2 is located at the right end in FIGS. 1 and 4B, and moves the tool holding member a2 to the opening 10 of the umbrella-shaped lid 10.
face a. Next, the arithmetic and control circuit 102 controls the operation of the drive motors 33 and 36 of the tool moving device 30 to move the slider 34 in the Y direction and to operate the slider 38.
Is moved in the Z direction, and the coarse grinding wheel b1 held by the tool holding mechanism 60 provided on the slider 38 is inserted into the tool holding member a2 through the opening 10a. At this time, the lid 10b is provided in the opening 10a, but since the lid 10b is made of rubber and has a cut, it does not hinder the passage of the tool holding mechanism 60 through the opening 10a.

Thereafter, the arithmetic and control circuit 102 controls the operation of the drive motor 73 so that the rotation of the drive motor 73 is controlled by the cams 71 and 71 via the bevel gears 75 and 76 and the interlocking shaft 70.
, And the tips of the cams 71, 71 are
By rotating 90 ° from a position facing upward in FIG. 5B to a position facing laterally in FIGS.
Is displaced downward by the spring force of the coil springs 66, 66. As a result, the clamp shafts 64, 64 and the claw pressing member 65 are displaced downward integrally with the rectangular frames 68, 68, and the tapered claw pressing surface 65a 'is moved to the tool holding mechanism 60.
Is separated from the outer peripheral surface of the plurality of elastic holding claws 63 provided on the bearing cylinder 80 'of the coarse grinding wheel b1.
Separated from the outer peripheral surface.

The arithmetic and control circuit 102 controls the operation of the drive motors 33 and 36 of the tool moving device 30 to move the slider 34 in the Y-direction and to operate the slider 38.
Is moved in the Z direction to engage the engagement pin 65b of the tool holding mechanism 60 with the notch 10c of the umbrella-shaped lid 10.

The arithmetic and control circuit 102 controls the operation of the drive motor 12 to rotate the lens rotating shaft 5, to rotate the base plate 8 and the cylindrical side wall 9 together,
1 and 4B, the operation of the drive motor 12 is controlled so that the tool holding member a1 and the edge thickness measuring tool f face the opening 10a of the umbrella-shaped lid 10. Then, the arithmetic and control circuit 102 controls the tool moving device 3
0 by controlling the operation of the drive motors 33 and 36 of the slider 3.
4 is moved in the Y direction, and the slider 38 is moved in the Z direction.
Thickness measuring tool f between the plurality of elastic holding claws 63
Is inserted.

Thereafter, the arithmetic and control circuit 102 controls the operation of the drive motor 73 so that the rotation of the drive motor 73 is controlled by the cams 71 and 71 via the bevel gears 75 and 76 and the interlocking shaft 70.
, And the tips of the cams 71, 71 are
By rotating 90 ° from the position facing side (d) to the position facing upwards (a) and (b), the rectangular frames 68, 68 are raised upward against the spring force of the coil springs 66, 66. To be displaced. As a result, the clamp shafts 64, 64 and the claw pressing member 65 are displaced upward integrally with the rectangular frames 68, 68, and the plurality of elastic holding claws 63 provided on the tool holding mechanism 60 by the tapered claw pressing surfaces 65a '. A plurality of elastic holding claws 63 sandwich the shaft portion 90 of the edge thickness measuring tool f.

The arithmetic and control circuit 102 controls the operation of the drive motors 33 and 36 of the tool moving device 30 to move the slider 34 in the Y direction and to operate the slider 38.
Is moved in the Z direction, and the edge thickness measuring tool f held by the tool holding member a1 is taken out upward through the opening 10a by the plurality of elastic holding claws 63.

In this embodiment, the exchange of the tools is described for the rough grinding wheel b1 and the edge thickness measuring tool f. However, the exchange of other tools is performed in the same manner. (D) Edge measurement of lens to be processed (measurement of front refraction surface)
After the edge thickness measuring tool f is held by the elastic holding claws 63 of the tool holding mechanism 60, the drive motor 1 is moved based on the lens shape data (θi, ρi) stored in the memory 108.
By rotating the lens 2 by a predetermined amount, the lens rotation shaft 5 is rotated by a predetermined angle θ and stopped. This rotation is performed intermittently based on the lens shape data (θi, ρi). In FIG. 4C, S represents lens shape data (θi,
7 shows a lens shape based on ρi).

On the other hand, the arithmetic and control circuit 102 sets the drive motor 33 of the tool moving device 30 to lens shape data (θi, ρ
i) By controlling the operation based on [i = 0, 1, 2, 3,... n], the contact 97 of the edge thickness measuring tool f is set to the angle θi.
(I = 0, 1, 2, 3,... N)
0, 1, 2, 3... N), the drive motor 36 of the tool moving device 30 is operated and the contact 97 of the edge thickness measuring tool f is moved to the position of the lens L to be processed. It is brought into contact with the front refracting surface (the lower surface in FIGS. 1 and 6).

By this contact, the movement detector 98a slightly moves against the spring force of the coil spring 95. This movement is detected magnetically or electrically by the detecting means 99, and this detection signal is transmitted from the transmitting circuit 99a to the antenna 99b.
Sent via The transmitted detection signal is received by the antenna 100 and input to the arithmetic and control circuit 102 via the receiving circuit 101. And the arithmetic control circuit 102
Receives the detection signal, stops the operation of the drive motor 36, and moves the contact 97 in the Z direction based on the number of control pulses of the drive motor 36 (i = 0, 1, 2, 3, 3).
.. N) are determined as contact positions with the lens L to be processed.
The memory 108 stores a front refracting surface position Lf of the lens L to be processed.
(Θi, ρi, Zi).

(Measurement of Rear Refracting Surface) Similarly, position data in the Z direction of the rear refracting surface (upper surface in FIGS. 1 and 6) of the lens L to be processed in the lens shape data (θi, ρi)
That is, the contact position (movement position) Zj (j = 0, 1, 2, 3,... N) of the contact 96 on the upper surface of the lens L to be processed at the angle θi and the moving radius ρi in FIG. In the memory 108, the rear refractive surface position Lb (θ
i, ρi, Zj) are stored.

(Calculation of the edge thickness of the lens to be processed) From the difference between the contact positions Zi and Zj of the contacts 97 and 96 in the lens shape data (θi, ρi) thus obtained, the lens shape data (θi , Ρi), the edge thickness Δi (i = 0, 1, 2, 3,... N) of the lens L to be processed is obtained, and the obtained data is stored in the memory 108 as edge thickness data (θi, ρi, Δi). Let it. (E) Grinding of lens to be processed The arithmetic and control circuit 102 determines in this way the lens to be processed L
After obtaining the edge thickness data (θi, ρi, Δi), the edge thickness measurement tool f held by the tool holding mechanism 60 is replaced with the coarse grinding wheel b1. And the arithmetic control circuit 10
2 indicates that the drive motors 33 and 36 are to be used as lens shape data (θi,
ρi), the movement of the rough grinding wheel b1 is controlled as shown by the broken line in FIG. 7, the peripheral surface of the lens L is ground by the rough grinding wheel b1, and the lens L is The shape is formed based on the mold shape data (θi, ρi).

When beveling is performed on the lens L that has been ground into the lens shape in this manner, the finishing grinding wheel c1 in FIG. 3 is held by the tool holding mechanism 60 instead of the coarse grinding wheel b1, and the drive is performed. By operating the motor 52, the rotation of the drive motor 52 is transmitted to the tool rotation shaft 51 via the power transmission mechanism 53, and the finish grinding wheel c1 is rotationally driven. Moreover, in this state, the edge thickness data (θi, ρi,
Based on Δi), the operation of the drive motors 33 and 36 is controlled by the arithmetic and control circuit 102 to finish-grind the peripheral edge of the lens L to be processed into a lens shape with the peripheral surface of the finish grinding wheel c1. A bevel is formed by the V-groove portion of the finishing grinding wheel c1 on the peripheral edge of the lens L to be processed which has been ground into a mold shape. After the peripheral portion and the bevel of the lens L to be processed are further polished on the peripheral surface portion and the V-groove portion of the polishing grindstone d1, the peripheral surface portion and the V-groove portion of the super polishing grindstone e1 are super-polished. The replacement of the grindstones d1 and e1 at this time is performed in the same manner as the above-mentioned edge thickness measuring tool f.

In the case where the engaging groove for engaging the lens holding band is formed on the peripheral surface of the lens L to be processed into a lens shape as described above, the finishing grinding wheel shown in FIG. c2 is held by the tool holding mechanism 60 in place of the coarse grinding wheel b1, and the drive motor 52 is operated to transmit the rotation of the drive motor 52 to the tool rotation shaft 51 via the power transmission mechanism 53, thereby completing the finish grinding wheel. c2 is driven to rotate. Moreover, in this state, the edge thickness data (θi, ρi,
The operation of the drive motors 33 and 36 is controlled by the arithmetic and control circuit 102 based on Δi) to finish-grind the peripheral surface of the lens L to be processed into a lens shape with the peripheral surface of the finish grinding wheel c2. An engaging groove is formed on the peripheral surface of the lens L to be processed, which has been ground into a mold shape, by a protrusion of the finishing grinding wheel c2. After the peripheral surface and the engaging groove of the lens to be processed are polished on the peripheral surface and the projection of the polishing grindstone d2, the peripheral surface and the projection of the super polishing grindstone e2 are superpolished. The replacement of the grindstones d2 and e2 at this time is also performed in the same manner as the above-mentioned edge thickness shape measurement tool f.

Further, the lens L to be processed ground into a lens shape
When a screw hole for fixing a lens stopper is formed in the tool, the drill c3 in FIG. 3 is held by the tool holding mechanism 60 instead of the coarse grinding wheel b1, and the drive motor 52 is operated to drive the drive motor 52. Is transmitted to the tool rotation shaft 51 via the power transmission mechanism 53, and the drill c3 is rotationally driven. Moreover, in this state, the arithmetic control circuit 102
To control the operation of the drive motors 33 and 36 to form screw holes for fixing the lens stoppers on the peripheral edge of the lens L to be machined into a lens shape. (Ii) Processing sequence of lens to be processed (1) Bevel processing mode (Bevel MODE) Bevel processing mode (B)
(EVER MODE), the arithmetic control circuit 10
2 performs beveling on the edge of the lens L to be processed in accordance with the processing sequence shown in FIG.

That is, when this mode is selected, the arithmetic unit control circuit 102 converts the edge thickness measurement of the lens to be processed (D) into the lens shape data (θi, ρi) using the edge thickness shape measurement tool f. Perform based on. In this case, FIG.
After the measurement of the front refraction surface of FIG. 9B, the measurement of the rear refraction surface of FIG. 9B is performed.

When this measurement is completed, the arithmetic and control circuit 10
2. After replacing the edge thickness measurement tool f with the coarse grinding wheel b1 as in the above (C), the lens as shown in the above (E) based on the lens shape data (θi, ρi) In addition to controlling the rotation of the rotating shaft 5, the rough grinding wheel b
In step 1, the lens L to be processed is ground into a lens shape.

Thereafter, the arithmetic and control circuit 102 changes the coarse grinding wheel b1 to the finish grinding wheel c1 as shown in FIG.
9D, the bevel is formed on the periphery of the lens L to be processed as shown in FIG. 9D by the finish grinding wheel c1, and the lens to be processed is formed by the finish grinding wheel c1 as shown in FIGS. 9E and 9F. L
The edge of the edge of the edge is chamfered, and the finish grinding wheel c1 is separated from the lens L to be processed, thereby completing the processing as shown in FIG. 9 (g). (2) Bevel processing polishing mode (Bevel Polis
h MODE) When the beveling and polishing mode (Bevel Polish Mode) is selected by the mode selection switch 107, the arithmetic and control circuit 102 performs beveling and polishing on the edge of the lens L to be processed in accordance with the processing sequence shown in FIG.

That is, FIG. 9 in the above (1)
After the operations (a) to (f) are performed as shown in FIGS. 10 (a) to 10 (f), the finishing grindstone c1 is replaced with the polishing grindstone d1 as in FIG. After polishing the bevel of the lens L to be processed as shown in FIG.
As in (C), the polishing grindstone d1 is replaced with a superpolishing grindstone e1, and the bevel of the lens L to be processed is superpolished by the superpolishing grindstone e1 as shown in FIG. The super-polishing finish of the chamfered portion at the edge of the peripheral edge is performed as shown in FIGS. 10 (i) and 10 (j). (3) Groove polishing mode (Groove Polish)
MODE) Groove processing polishing mode (G
roove Polish MODE)
The arithmetic control circuit 102 performs groove processing and polishing processing on the edge face of the lens L to be processed in accordance with the processing sequence shown in FIG.

That is, FIG. 9 in the above (1)
After the operations (a) to (c) are performed as shown in FIGS. 11A to 11C, the rough grinding wheel b1 is replaced with the finish grinding wheel c2 as shown in FIG. At c2, the entire circumference of the edge of the edge of the lens L to be processed is flat-finished as shown in FIG. 11D, and then a groove is formed over the entire circumference of the edge of the edge of the lens L to be processed by the finish grinding wheel c2 as shown in FIG. After the formation, the edge of the edge of the lens L to be processed is chamfered by the finish grinding wheel c2 as shown in FIGS. 11 (f) and 11 (g).

Thereafter, as shown in (C), the finish grinding wheel c2 is replaced by a polishing wheel d2, and the groove formed on the edge of the edge of the lens L to be processed by the polishing wheel d2 is formed as shown in FIG.
After polishing as shown in FIG. 11C, the polishing grindstone d2 is replaced with a superpolishing grindstone e2, and the groove on the edge of the edge of the lens L to be processed is superpolished with the superpolishing grindstone e2 as shown in FIG. After finishing, super-polishing finishing of the chamfer at the edge of the peripheral edge of the lens L to be processed is performed as shown in FIGS. 11 (j) and 11 (k). (4) Grooving Mode When the grooving mode is selected by the mode selection switch 107, the arithmetic and control circuit 102 grinds the periphery of the lens L to be processed into a target shape in accordance with the processing sequence shown in FIG. 12 or FIG. At the same time, grooving for attaching a bridge or temple to the periphery of the lens L to be processed is performed.

That is, FIG. 9 in the above (1)
After performing the measuring operations of (a) and (b) as shown in FIGS. 12 (a) and 12 (b) or FIGS. 13 (a) and 13 (b), as shown in FIG. Is replaced with a grooving tool b4, and a groove 200 as shown in FIGS. 14 and 15 is grooved on the periphery of the lens L to be processed at the tip of the grooving tool b4. Processing tool b4
In the middle part of the above, the peripheral portion of the lens L to be processed is ground into a lens shape. After that, as shown in FIG. 1C, the grooving tool b4 is replaced with the drill c3, and the groove 200 formed by grooving the lens L to be processed with the drill c3 in FIG.
2 (e), a drilling process as shown in FIG. 13 (e) is performed to form a screw hole 201 in the groove 200, and then, as in (C), the drill c3 is replaced with a polishing grindstone d1. ,
As shown in FIGS. 12F and 13F, the edge of the edge of the lens L to be processed is polished at an intermediate portion of the polishing grindstone d1. In this embodiment, the groove 200 is provided for fitting and attaching the bent portion 202a at one end of the temple 202. In this attachment, the bent portion 202a is fitted into the groove 200, and a screw 203 is inserted into a screw insertion hole 202b provided in the bent portion 202a.
Is screwed into the screw hole 201 of the groove 200. Thereby, the temple 202 is attached to the lens L to be processed. <Second Embodiment> The above-described display device 109 may have a display screen as shown in FIG. 16, which is a so-called panel computer. That is, as shown in FIG. 16, the display screen of the display device 109 includes an image display unit 109a for displaying left and right lens frame images LL and LR, and a touch panel switch unit 110 for measuring and processing the left lens. , A touch panel switch unit 111 for measuring and processing the right lens. This touch panel switch unit 110, 1
Reference numeral 11 is provided corresponding to the left and right lens frame images LL and LR. Further, the display screen of the display device 109 corresponds to the frame images LL and LR, and corresponds to the curve values (Curv) of the left and right lenses.
e), a display unit 112 for displaying data such as an axis angle (Angle), etc., and a lens frame geometric center distance F
The display unit 113 includes a PD, a pupil distance PD between the left and right eyes, an inward adjustment amount UP, a size (Size), and the like.

Further, the display screen of the display device 109 has a touch panel switch unit 114 used to read the next lens shape data from the frame shape measuring device 103 (a lens shape measuring device), and a lens rotation axis for the lens L to be processed. Touch panel switch unit 115 for operating the drive motor 23 so as to be sandwiched between the work 5 and the work holding shaft 25
Having.

The display screen of the display device 109 has touch panel switches 116 and 11 for selecting a processing mode such as auto, metal, plastic, or polish.
7, 118, 119, a touch panel switch unit 120 for displaying a menu screen, and a touch panel switch unit 121 for canceling the operation of the touch panel switch.

By touching the touch panel switch section 116, “Auto” as shown in FIG.
o, Manual, PC, F Change ”and the like are displayed below Auto, and Auto
A check mark CM of the current mode is displayed on the left side of. Each time a touch operation is performed on the touch panel switch unit 116, the check mark CM is displayed in FIG. 18 and FIG.
The modes are switched in the order of (a), (b), (c) and (d) to switch the mode.

By touching the touch panel switch unit 117, “Metal, Plastic, Groove, Poi” as shown in FIG.
A menu such as “nt” is displayed below Metal, and a check mark CM of the current mode is displayed on the left side of Metal. This check mark CM also
Each time the touch panel switch unit 117 is touched, (a), (b), (c),
The mode is switched in the order of (d), and the mode is switched.

Further, by touching the touch panel switch section 118, “Plastic, PC, Acryl, Minera” as shown in FIG.
A menu such as "1" is displayed below the plastic, and a check mark CM of the current mode is displayed on the left side of the plastic. Each time a touch operation is performed on the touch panel switch unit 118, this check mark CM is also displayed in FIGS.
The mode is switched in the order of (c) and (d) to switch the mode.

When the touch panel switch section 120 is touched, as shown in FIG. 24, the display device 109 displays “Condition”, “Bevel”, and “Drill”.
l "," Safety Belle "," Polis "
h), “Grooving” panel operation units 122,
A menu screen including 123, 124, 125, 126, and 127 is displayed.

The menu screen has a touch panel switch unit 128 (Before) for returning to the previous screen.
e Page), a touch panel switch unit 129 (Next Page) for displaying the next screen, a touch panel switch unit 130 (Cancel) for canceling operation by the touch panel on the menu screen, a touch panel for setting on the touch panel Switch part 1
31 (Yes) is also displayed.

Here, in this embodiment, the panel operating section 122 is used to set the temperature of the cooling water (coolant), and in the same figure, "Constant" is used to keep the temperature constant. Is set.
The set temperature can be changed by selecting “Cool” to lower the temperature of the grinding water and “Hot” to raise the temperature of the grinding water.

The panel operation section 123 is used to perform an instruction system for setting the bevel position and fine-adjust the bevel position. Here, "Bevel Contr
"ol" is an instruction system for setting a bevel position, that is, an operation unit for setting from where data necessary for bevel processing is received and which apparatus controls the bevel processing. (Gazuri machine), "ALE / PC"
There are three options: (Grass machine / PC terminal) and “PC” (PC terminal). When "ALE" is set, the arithmetic and control circuit 102 receives data necessary for beveling only from the ball mill and controls beveling based on the processed data. When "PC" is set, data necessary for beveling is received only from a personal computer terminal independent of the ball mill, and beveling is controlled based on the processed data. When "ALE / PC" is set, data required for beveling is received from either a ball mill or a personal computer terminal, and beveling is controlled based on the processed data. In the embodiment, in order to receive data required for beveling from either a balling machine or a personal computer terminal,
“ALE / PC” is set.

The "Position" is an operation section for adjusting the position at which the beveling is performed, and here, the bevel peak position is set to "Rear" (rear side).

The panel operation section 124 is used for making a hole so that the spectacle lens after the grinding processing can be mounted on the rimless frame. Here, "Diameter
"r" (diameter) indicates the diameter of the hole made in the spectacle lens,
It is possible to set how many mm the diameter of the hole is. In this embodiment, a hole having a diameter of 0.8 mm is set. On the other hand, in “Dimension” (dimension), which side (front or rear) of the front and rear surfaces of the spectacle lens is used.
It is possible to specify whether to make a hole from r). In the embodiment, “Front” (front side) is set.

The panel operation section 125 is used to set the chamfer of the spectacle lens. Here, "Width"
(Width) indicates the width of the chamfered edge, and in this case, 0.
It can be set to 2 mm, 0.4 mm, and 0.6 mm. “Position” (position) indicates a position to be chamfered, and only “Front” (front side) or “Rear”
Only (rear side) or “Both” (both front and rear) can be set. “Angle” (angle) indicates the angle at which the edge is chamfered when chamfering, and can be set to 45 °, 50 °, or 55 ° here. In the item of “Special”, “Small” is used for a small chamfer, “Standard” is used for a normal chamfer, and “Larg” is used for a large chamfer.
By setting "e", special chamfering can also be realized. In the embodiment, “Standard” is set to perform normal chamfering.

The panel operation unit 126 is used to set a mirror finish for the edge surface. Here, "Level"
Is the degree of mirror finishing, that is, whether rough mirror finishing (Rough) or normal mirror finishing (Stand)
ard) or fine mirror finishing (Fin
e) is set, and in the case of the embodiment, “Standard” for performing normal mirror finishing is set.
“Bevel” is used to set a position where mirror processing is performed. In the case of the embodiment, “Bevel” is the front side of the bevel (Front).
"Both" for processing both the rear side and the rear side, that is, the entire edge surface is set.

The panel operating section 127 is used when the flattened spectacle lens is to be grooved on the edge surface so as to be mounted on a wire frame or the like. Here, "Dept
"h" and "Width" are for setting the depth and width of the groove formed on the edge surface, respectively. In the case of the embodiment, both the depth and width of the groove are set to 1.6 mm.

Each of the panel operation units 122, 123, 1 described above
The setting of the temperature of the grinding water, the setting of the beveling processing, the setting of the drilling processing, the setting of the chamfering processing, the setting of the mirror finishing, and the setting of the grooving processing can be easily performed by means of 24, 125, 126 and 127.

After setting by the panel operation unit described above, in order to simulate spectacle lenses expected after processing, the user touches the touch panel switch unit 129 and switches to a simulation screen shown in FIG.
Various processing settings can be changed and modified.

The simulation display panel 132 displays the bevel position in a simulated manner. The bevel shape displayed here simulates the cross-sectional shape of the edge surface of the spectacle lens after grinding at an arbitrary radius, and the simulation display panel allows the bevel to be positioned at the front refracting surface and the rear side. It shows how many mm from the side refraction surface is processed.

The simulation display panel 133 simulates and displays the spectacle lens after the hole is formed in the spectacle lens in order to mount the ground spectacle lens on the rimless frame. Alternatively, which side (Front or Rear) of the front and rear surfaces of the spectacle lens is opened is displayed.

The simulation display panel 134 simulates and displays the spectacle lens after chamfering. here,
“Width” indicates the width of the chamfered edge, and is displayed on the screen as a number of millimeters. "Position" means that the chamfered position is the front side (Front) or the rear side (Rear)
Is displayed, and the chamfered portion is displayed by a thick line, by changing colors, or by blinking. Further, "An
“gle” indicates the angle at which the edge is chamfered from the edge when chamfering, and the angle is displayed after setting “Position”.

The simulation display panel 135 indicates whether the front end (Front Level), the rear end (Rear Level) or the entire surface of the edge face is to be mirror-finished. For example, the front side (Front B
(Evel) when the edge face is mirror-finished,
The edge of the front bevel is displayed as a dotted line, or displayed in a different color, or blinking.

The simulation display panel 136 simulates a spectacle lens which has been subjected to a trenching process used for a wire frame or the like. The width (Width) of the groove formed on the edge surface for mounting the wire on the processed spectacle lens and the depth (Depth) of the groove are displayed.

In the above embodiment, the operation screen for processing setting (FIG. 24) and the operation screen for simulating the processed spectacle lens are divided (FIG. 25). Processing settings can also be made only on the operation screen to be simulated.

In such a case, in FIG.
Is a panel operation unit for setting and instructing the bevel position. The bevel shape displayed here simulates the cross-sectional shape of the edge surface of the spectacle lens after grinding at an arbitrary radius. mm.

In order to carry out the work of making a hole in the spectacle lens so that the spectacle lens after the grinding processing can be mounted on the rimless frame, the diameter of the hole to be formed is 133 mm.
Alternatively, either side of the front and rear surfaces of the spectacle lens (Front)
Or a rear panel) for setting whether or not to make a hole.

Reference numeral 134 denotes a panel operation unit for setting the chamfer of the spectacle lens. Here, "Width"
(Width) indicates the width of the chamfered edge and how many meters on the screen
It can be set by entering m. "P
In the “position” (position), the position of the chamfer can be set to the front side (Front) or the rear side (Rear). When the chamfered part is set, the chamfered part is indicated by a thick line, by changing colors, or by blinking. Is displayed. further,
“Angle” (angle) indicates the angle at which the edge is chamfered from the edge when chamfering, and “Pos”.
After the setting of “ition”, the angle can be set by inputting what angle.

Reference numeral 135 denotes the front end (Fron) of the edge face.
t Level), a rear side (Rear Level) or an entire surface is a panel operation unit for setting whether to mirror-process. For example, the front side (Front Beve)
l) When the edge face is mirror-finished, the front side (Fron
The edge surface of (t Level) is displayed by a dotted line, or is displayed in a different color, or flashes.

Reference numeral 136 denotes a panel operation unit for setting a trench processing used for a wire frame or the like. What is the width (Width) of the groove formed on the edge surface for mounting the wire on the spectacle lens after processing, and the depth (D) of the groove?
(Epth) can be set by entering how many mm. <Third Embodiment> In this embodiment, the umbrella-shaped lid is fixed to the housing 1, and a bearing is provided between the umbrella-shaped lid and the lens rotating shaft 5. FIG. 29 shows an example thereof.
An umbrella-shaped lid 137 integrated with the cylindrical side wall is fixed to the bottom wall 2 ′, a bearing 138 is provided between the umbrella-shaped lid 137 and the lens rotation shaft 5, and the opening 13 of the umbrella-shaped lid 137 is provided.
7a is always at a fixed position regardless of the rotational position of the base plate 8. For this reason, the notch 10c and the engaging pin 65b provided in the first embodiment are not required, and the operation control during the tool change can be simplified.

The bottom wall 2 'has a drain port 139 for discharging grinding water.
A hose 140 is connected to the drain port 139, through which waste liquid during grinding is discharged to the outside. The waste liquid is discharged to the drain 13
9, the vicinity of the drain port 139 of the bottom wall 2 'is recessed from the surroundings.

FIG. 30 shows another example of this embodiment, in which an umbrella-shaped lid 141 is fixed to the side walls 3, 3 '.
A bearing 138 is provided between the lens and the lens rotation shaft 5, and the opening 141 a of the umbrella-shaped lid 141 is always at a fixed position regardless of the rotation position of the base plate 8. For this reason, FIG.
The operation control during tool change can be simplified in the same manner as shown in FIG.

A hose 142 for drainage penetrates through the bottom wall 2, and the umbrella-shaped lid 141 is used for discharging waste liquid during grinding.
A curved surface is formed so as to flow into. <Fourth Embodiment> When the unprocessed spectacle lens L is, for example, a crab-eye lens, it is necessary to mount a special suction disk conforming to the shape of the crab-eye lens, and the suction shaft is attached to the lens rotating shaft. A suction cup receiver for receiving the board must be installed. Therefore, in this embodiment, the portion of the lens rotating shaft to which the suction disk is attached is separately provided as a suction disk receiving jig, and the suction disk receiving jig can be replaced according to the lens shape.

FIG. 31 shows the overall configuration of a lens grinding apparatus according to this embodiment. This apparatus is provided with a suction disc receiving jig magazine 143 having the same configuration as that of the tool magazine 6. Here, the suction disc receiving jig magazine 143 has suction discs for ordinary lenses, crab-shaped lenses, and large-diameter lenses. The receiving jigs 144, 145, 146 are accommodated. The suction disc receiving jigs 144, 145, and 146 include upper suction disc receiving jigs 144a, 145a, and 146a and lower suction disc receiving jigs 144b, 145b, and 146b, respectively. As shown in FIG. The receiving jig 144 is a state in which the pins 144c provided on the upper suction disk receiving jig 144a and the L-shaped grooves 144d provided on the lower suction disk receiving jig 144b are engaged and integrated, It is stored in the suction disc receiving jig magazine 143. In the same figure, reference numeral 144e denotes a cylindrical portion of the lower suction cup receiving jig 144b in which the fitting groove is formed,
Reference numeral 144f denotes a rubber portion of the upper suction disc receiving jig 144a abutting on the rear refracting surface of the lens L to be processed, and the suction disc receiving jigs 145 and 146 have the same configuration.

The lens rotating shaft 5 'is provided with a fitting pin 147 which fits into the fitting groove so that any of the lower suction plate receiving jigs 144b, 145b, 146b can be mounted. I have. A lens clamp device 148 driven and controlled by the arithmetic and control circuit 102 is provided on the side wall of the housing. This lens clamp device 148 is of a flip-up type unlike the lens clamp device 20 of the first embodiment, and is capable of allowing the movement of the clamp tool to immediately above the lens rotation axis 5 '. The tip of the arm of the lens clamp device 148 is the upper suction disc receiving jig 1
44a, 145a, and 146a can be rotatably held, and the upper suction disc receiving jig held rotatably in this way plays an alternative role to the lens rotation shaft 25 in the first embodiment. A spring 149 is provided to prevent the lens clamp device 148 from suddenly moving.

In the lens grinding apparatus according to this embodiment, the clamp tool selects a suction disc receiving jig suitable for the lens shape of the lens to be processed from the suction disc receiving jig magazine 143, and its upper suction disc receiving jig. The tool holding mechanism 60
And carry it to just above the lens rotation shaft 5 '. The fitting groove of the lower suction cup receiving jig is fitted with the fitting pin 147.
The holding jig receiving jig is lowered so as to engage with the lower suction disk receiving jig on the lens rotating shaft 5 '. Further, the upper suction cup receiving jig is rotated by the tool rotation drive mechanism 50 to rotate the pins (144c, 145c, 14).
6c) and the L-shaped grooves (144d, 145d, 146d) are disengaged, and then the upper suction cup receiving jig is released to retreat from the lens rotation shaft 5 '.

Subsequently, the lens clamp device 148, which has been flipped up, descends as shown by the dashed line, and holds the upper suction plate receiving jig at its tip, and holds the upper suction plate receiving jig. As it rises again, it is separated from the lower suction cup receiving jig. In this state, the worker attaches the lens to be processed on which the suction disk (suction cup) is sucked to the lower suction disk receiving jig with the suction disk facing downward, and the processed lens is inserted into the lens via the upper suction disk receiving jig. The clamping of the lens is completed by being pressed from above by the clamping device 148.

Thereafter, the processing operation proceeds as described in the first embodiment. However, when the type of the suction disk receiving jig is changed in order to change the type of the lens to be processed, the mounting procedure is reversed. The suction jig receiving jig is detached from the lens rotating shaft 5 'in accordance with the above operation, and the suction jig receiving jig magazine 1
After being stored in the sucker 43, a new suction board receiving jig is taken out from the suction board receiving jig magazine 143, and the same procedure as described above may be repeated.

[0106]

As described above, it is possible to cope with only one grinding wheel shaft without providing a new grinding wheel shaft corresponding to various processing types and lens materials such as glass or plastic, and a driving device for the grinding wheel is also provided. Since only one is required, the driving mechanism and the entire apparatus can be simplified.

Also, in the case where the eyeglass lens is ground in response to a special frame such as a rimless frame or a wire frame in recent years, it is only necessary to change the tool using the tool holding rotary shaft. There is no need to separately arrange the grinding wheel shaft.

Since the driving mechanism for the tool holding rotary shaft and the driving mechanism for the mounting table are shared, the apparatus can be reduced in size and simplified.

In addition, by arranging the edge thickness measuring tool, which is not provided in the conventional lens grinding apparatus, it is possible to realize an excellent-looking bevel grinding process that matches the shape of the edge surface.

[Brief description of the drawings]

FIG. 1 is an overall explanatory view of a lens grinding apparatus according to the present invention.

2A is an enlarged view of the tool holding mechanism shown in FIG. 1 when the tool is held, FIG. 2B is a right side view of FIG. 1A, FIG. 2C is an enlarged view of the tool holding mechanism released from the tool holding mechanism, (D)
(C) is a right side view of FIG.

FIG. 3 is an explanatory diagram of a tool held by a tool holding mechanism of FIG. 1;

FIGS. 4A and 4B are explanatory diagrams for tool exchange;
(C) is an explanatory view for measuring the edge thickness of the test lens.

FIG. 5 is an explanatory diagram illustrating a relationship between a tool holding unit and a tool in FIG. 1;

6 is an operation explanatory view showing a use state of the edge thickness measuring tool of FIG. 3;

FIG. 7 is an operation explanatory view showing a use state of the coarse grinding wheel shown in FIG. 3;

FIG. 8 is a control circuit diagram of the lens grinding apparatus of FIG. 1;

FIG. 9 is an explanatory diagram showing an example of a processing sequence by the lens grinding device according to the present invention.

FIG. 10 is an explanatory diagram showing an example of a processing sequence by the lens grinding device according to the present invention.

FIG. 11 is an explanatory diagram showing an example of a processing sequence by the lens grinding device according to the present invention.

FIG. 12 is an explanatory diagram showing an example of a processing sequence by the lens grinding device according to the present invention.

FIG. 13 is an explanatory diagram showing an example of a processing sequence by the lens grinding device according to the present invention.

FIG. 14 is a partial perspective view showing a relationship between a lens to be processed and a temple.

FIG. 15 is a plan view of the lens to be processed in FIG. 14;

FIG. 16 is an explanatory view showing an example of a display screen of a display device used in the lens grinding apparatus of the present invention.

FIG. 17 is a partial explanatory view when a part of the display screen of FIG. 16 is operated.

FIG. 18 is an explanatory diagram of a menu selection cycle by operating the touch panel switch unit of FIG.

FIG. 19 is an explanatory diagram of a selection menu accompanying the menu selection cycle of FIG. 18;

FIG. 20 is an explanatory diagram of a menu selection cycle by operating the touch panel switch unit in FIG. 16;

FIG. 21 is an explanatory diagram of a selection menu accompanying the menu selection cycle of FIG. 20;

FIG. 22 is an explanatory diagram of a menu selection cycle by operating the touch panel switch unit of FIG.

FIG. 23 is an explanatory diagram of a selection menu accompanying the menu selection cycle of FIG. 22.

FIG. 24 is an explanatory diagram showing an example (menu screen) of a display screen of a display device used in the lens grinding apparatus of the present invention.

FIG. 25 is an explanatory diagram showing an example (simulation screen) of a display screen of a display device used in the lens grinding apparatus of the present invention.

26A is a plan view of a lid member provided at an opening of an umbrella-shaped lid, and FIG. 26B is a side view of the lid member of FIG.

FIG. 27 is an explanatory diagram showing a state in which a suction disk is attached to a lens to be processed.

28 is an explanatory diagram showing a state in which the lens to be processed in FIG. 27 is installed on a lens rotation axis.

FIG. 29 is an explanatory view showing a modification of the lens grinding apparatus of FIG. 1;

FIG. 30 is an explanatory view showing a modification of the lens grinding apparatus of FIG. 1;

FIG. 31 is an explanatory view showing a modification of the lens grinding apparatus of FIG. 1;

FIG. 32 (a) is an explanatory view showing a state where an upper suction disk receiving jig and a lower suction disk receiving jig are separated, and FIG. 32 (b) is an upper suction disk receiving jig and a lower suction disk receiving jig. FIG. 4 is an explanatory diagram showing a state in which is engaged.

[Explanation of symbols]

L: lens to be processed (unprocessed spectacle lens) b1: rough grinding wheel (grinding wheel tool for rough grinding) b2: rough grinding cutter (grinding wheel tool for rough grinding) c1: finish grinding wheel ( C2: Finish grinding whetstone (finish grinding stone tool, cutter) c3: Drill (drilling tool) c4: Finish grinding whetstone (finishing grinding stone tool, surface) Grinding tool (drilling tool for grinding) d1 .. Polishing whetstone (grinding stone tool for mirror finishing) d2... Polishing whetstone (grinding stone tool and cutter for mirror finishing) e1. Finishing grinding wheel tool e2 ... Super-polishing grinding wheel (Ultra-mirror grinding wheel tool, Super-finishing grinding wheel tool, cutter) 5,25 ... Lens rotating shaft 8 ... Base plate (mounting table) f ... Edge thickness measurement tool

Claims (8)

[Claims] 1. A lens grinding apparatus for grinding an unprocessed spectacle lens, wherein at least a rough grinding wheel tool or a finish grinding stone tool is arranged, and at least one of the tools is held. A lens grinding apparatus having a single tool holding rotary shaft. 2. A lens grinding apparatus for grinding an unprocessed spectacle lens sandwiched between lens rotation axes, wherein at least a rough grinding wheel tool or a finish grinding wheel tool is provided around the axis of the lens rotation axis. A lens grinding apparatus, comprising: at least one tool holding rotary shaft that is disposed and holds one of the tools. 3. A lens grinding apparatus for grinding an unprocessed spectacle lens sandwiched by a lens rotation axis, wherein at least a rough grinding wheel tool or a finish grinding wheel tool is mounted around the lens rotation axis. A mounting table for mounting, and at least one tool holding rotation axis for holding any one of the tools; adjusting a distance between the lens rotation axis and the tool holding rotation axis to adjust the tool holding rotation; A lens grinding apparatus characterized in that a peripheral portion of the eyeglass lens is ground by the tool held on a shaft. 4. A lens grinding apparatus for processing a spectacle lens by rotating a tool held by a tool holding rotary shaft against a spectacle lens, wherein a plurality of the tools are arranged corresponding to various types of processing. A lens grinding apparatus wherein the tool holding rotary shaft automatically holds any one of the tools according to a type of processing. 5. A rotatable lens rotating shaft for holding the spectacle lens and directing a processed portion of the spectacle lens toward a tool held by the tool holding rotating shaft, wherein a rotatable lens rotating shaft is provided around the lens rotating shaft. The lens grinding apparatus according to claim 4, wherein the tool is arranged. 6. A mounting table for mounting the tool in an annular shape around the axis of the lens rotating shaft, a driving motor for rotating the lens rotating shaft is provided, and the tool holding rotating shaft holds the driving motor. 6. The lens grinding apparatus according to claim 5, wherein the drive motor rotates the mounting table so as to easily hold a tool to be held. 7. The lens grinding apparatus according to claim 1, further comprising an edge thickness measuring tool for measuring an edge thickness shape of the spectacle lens. 8. A grindstone tool for rough grinding, a grindstone tool for finish grinding, a grindstone tool for chamfering, a grindstone tool for mirror finishing, a grindstone tool for super finish grinding, a tool for drilling, a tool for grooving and a cutter are arranged. The lens grinding apparatus according to any one of claims 1 to 6, wherein: