JPH08155806A - Parts fitting hole boring device for rimless lens - Google Patents

Abstract

PURPOSE: To provide a rimless lens fastening hole boring device that can easily bore a parts fitting hole provided at the peripheral edge part of a rimless lens with the peripheral edge part ground in demonstration lens shape, in a right- angled direction to the contact plane of the refracting interface without needing skill. CONSTITUTION: A parts fitting hole boring device for a rimless lens has a hole position detecting means 8 with a taper part to be engaged with the fitting hole of a demonstration lens, a lens holding means 6 tilted in the same condition as a demonstration lens holding means 5 interlockingly with the demonstration lens holding means 5, a hole machining means 9 for boring a parts fitting hole in the specified position of the peripheral edge part of a rimless lens held by the lens holding means 6, and an X-Y table for relatively moving the hole machining means 9 and the hole position detecting means 8 integrally in relation to the lens holding means 6 in a direction along a plane intersecting the boring axis of the hole machining means 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is for mounting rimless lens parts for forming mounting holes (lens fixing holes) for mounting parts such as bridges and temples (ear hooks) on the periphery of rimless lenses. The present invention relates to a mounting hole punching device.

[0002]

2. Description of the Related Art Generally, in rimless glasses using a rimless lens made of plastic or the like, a bridge having attached portions (lens stoppers) integrally provided at both ends thereof is disposed between the left and right rimless lenses. By fixing the lens stoppers at both ends of the bridge to the left and right rimless lenses with screws, the left and right rimless lenses are connected by the bridge. In addition, in this rimless glasses, a temple mounting bracket (lens stop) is fixed to the edge of each rimless lens opposite to the bridge with a screw, and a temple (ear hook) is attached to this lens stop via a hinge. It is normal that

When manufacturing these rimless spectacles, a raw lens is ground into a demo lens shape by a ball slicing machine to form a rimless lens, and then the left and right rimless lenses are ground and mounted on a bridge or temple. Mounting holes for mounting parts such as metal fittings are drilled.

Before making the mounting hole, a flat demo lens provided with the mounting hole and a ground rimless lens are superposed, and the tip of the marker is inserted into the mounting hole of the demo lens to insert the rimless lens. There is a mark for the position where the mounting hole is drilled. After this, a skilled spectacle engineer made a hole (a hole for fixing a lens) in the marked portion of the rimless lens.

[0005]

By the way, when the mounting hole is formed at a predetermined position on the peripheral portion of the rimless lens, the refracting surface of the rimless lens is curved. It must be perpendicular to the tangent plane on the refractive surface of the lens.

However, it was extremely difficult to make a hole at a right angle to the tangent plane on the refracting surface of the rimless lens, and it was inevitable to rely on it. Moreover, when a hole is drilled diagonally to the tangent plane, the rimless lens is currently prevented from coming off by adjusting parts such as a bridge having a lens stopper, a temple mounting bracket, and a hinge. there were.

Therefore, there has been a demand for a device capable of easily forming a mounting hole (lens stopping hole) for mounting a component of a rimless lens at a right angle to a tangential plane of a refracting surface.

Therefore, an object of the present invention is to provide a mounting hole for mounting a component, which is provided on the peripheral portion of a rimless lens whose peripheral portion is ground into a demo lens shape, with respect to the tangent plane of the refracting surface without requiring any skill. An object is to provide a lens stop drilling device for a rimless lens that can be easily opened at a right angle.

[0009]

In order to achieve this object, the present invention provides a demo lens holding means capable of holding a demo lens having mounting holes for mounting parts at its peripheral portion, and the demo lens holding means. Lens holding means for holding the rimless lens after grinding, and parts at predetermined positions on the peripheral portion of the rimless lens after grinding held by the lens holding means, corresponding to the left and right eyes of the demo lens held by the means. By adjusting the inclination of the hole processing means for making a mounting hole for mounting and the demo lens held by the demo lens holding means, the rimless lens after grinding processing held by the lens holding means can be adjusted with respect to the drilling axis line. And a tilt adjusting means for adjusting the tilt of the rimless lens.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, one embodiment of the present invention will be described with reference to the drawings.

A mounting hole drilling device for mounting parts of a rimless lens according to the present invention comprises a hole drilling device body 1 shown in FIGS. 1 to 6 and a marking device 2 shown in FIGS. 7 to 10.

<Punching Device Main Body 1> The drilling device main body 1 includes a base plate 3 shown in FIGS. 1 to 3, and an XY table 4 as a moving means mounted on the base plate 3 as shown in FIG. Demo lens holding means 5 and lens holding means 6 mounted on the XY table 4, holding means interlocking means 7 for synchronously interlocking the demo lens holding means 5 and lens holding means 6, and a base plate close to the XY table 4. 3 has a hole position detecting means 8 and a hole processing means 9, and a control box C located on the right side of the XY table 3 in FIG. 1 and provided on the base plate 3.

(XY Table 4) XY Table 4
As shown in FIGS. 3 and 4, the guide rails 10 and 10 fixed to the left and right in the drawings on the base plate 3 and the guide rails 10 and 10 mounted on the guide rails 10 and 10 so as to be movable back and forth (X direction). X table 11, guide rails 12, 12 fixed on the X table 11 in the vertical direction in the figure, that is, in the front-back direction (Y direction), and the guide rails 12, 1.
A Y table 13 is mounted on the table 2 so as to be movable back and forth in the vertical direction (Y direction).

Support walls 14 and 15 extending in the left and right directions (X direction) in FIGS. 1 and 4 are fixed on the Y table 13. The support walls 14 and 15 are arranged in parallel in the Y direction (front-back direction) with an interval. This support wall 14, 1
The demo lens holding means 5 and the lens holding means 6 described above are held between the five.

(Demonstration lens holding means 5) This demo lens holding means 5 penetrates the support walls 14 and 15 and supports the support wall 1.
The operation shaft 16 rotatably held by 4, 4 and 15, the operation shaft 16 penetrates the center of the peripheral surface, and the cylindrical body 17 is held at the center of the operation shaft 16, and is fixed to both end surfaces of the cylindrical body 17. Pads 18 and 19 (elastic friction holding members) made of rubber and synthetic resin, etc., and the operation shaft 1 at the center of the peripheral surface of the cylindrical body 17.
6 has a support shaft 20 fixed orthogonally to the support shaft 6, and a positioning flange 21 provided at the free end of the support shaft 20. Positioning lines 18a and 19a as shown in FIG. 6B are provided on the surfaces of the pads 18 and 19, respectively.

Further, the demo lens holding means 5 includes the operation shaft 1
6 has a U-shaped support member 22 held on one end side. The support member 22 is arranged in parallel with the operation shaft 16 to form the cylindrical body 1.
It has opposing pieces 22a and 22b extending toward the 7 side.

Further, the demo lens holding means 5 includes the operation shaft 1
Support arms 23 and 24 arranged in parallel along 6;
The opposing piece 22 penetrates one end of the support arms 23 and 24.
fixing screws 25 and 26 screwed to a and 22b to fix the support arms 23 and 24 to the facing pieces 22a and 22b,
Clamp screws 27, 28 screwed to the operation shaft 16 at the other ends of the support arms 23, 24, and the clamp screw 2
The disks 29 and 30 are held at the tips of the disks 7 and 28, and the pads 31 and 32 (elastic friction holding members) made of rubber, synthetic resin or the like are fixed to the end surfaces of the disks 29 and 30.

Reference numeral 33 is an operation knob fixed to one end of the operation shaft 16 for adjusting the inclination.

(Lens Holding Means 6) Since this lens holding means 6 has the same structure as the demo lens holding means 5, the same members as or similar members to the demo lens holding means 5 are designated by the reference numerals used for the demo lens holding means 5. Is attached with a symbol with "", and the description thereof is omitted.

(Holding Means Interlocking Means 7) The holding means interlocking means 7 includes timing gears 34 and 35 fixed to the other ends of the operating shafts 16 and 16 ', and timing gears 34 and 35.
It is composed of a timing belt 36 that is stretched around.

(Hole Position Detecting Means 8) The hole position detecting means 8 has a support plate 40 which is planted and fixed on the base plate 3, as shown in FIGS. In FIG. 1, the support plate 40 is formed to have an L-shaped planar shape from a vertically extending wall portion 40a and a horizontally extending wall portion 40b. The tip of a support bolt 41 as a rotation support shaft is screwed to the wall portion 40a, and a support piece 42 having a substantially rectangular side surface is rotatably held on the support bolt 41 as shown in FIG. ing.

The lower edge of the support piece 42 is a support bolt 41.
The inclined surface 42a located below the axis O of the
It is formed at the upper corner of the a side. As a result, in the state of FIG. 2, the end surface 42b of the support piece 42 contacts the wall portion 40a and the support piece 42 cannot rotate counterclockwise, but can rotate clockwise.

Further, a torsion spring 43 wound around the support bolt 41 is interposed between the support piece 42 and the support bolt 41. This torsion spring 4
3, the support piece 42 is urged to rotate counterclockwise in FIG. 2 to bring the end surface of the support piece 42 into contact with the wall portion 40a.

A support plate 44 extending in the Y direction toward the upper side of the XY table 4 is fixed to the upper surface of the support piece 42, and a tapered hole engaging element 45 is provided on the lower surface of the free end of the support plate 44. It is fixed.

(Hole Making Means 9) This hole making means 9 has a pair of frame plates 50, 50 'fixed on the base plate 3, as shown in FIG. This frame board 5
0 and 50 'are formed in a reverse L shape from the vertical portion 50a and the horizontal portion 50b extending in the Y direction from the upper end of the vertical portion 50a to the XY table 4 side.

A vertically extending guide plate 51 is fixed between the end portions of the horizontal portions 50b and 50b, and a pair of vertically extending elongated holes 51a and 51a are formed in the guide plate 51 at intervals vertically. Elevating plates 52 and 53 are arranged on both sides of the guide plate 51. The elevating plates 52, 53 can be moved up and down integrally with each other and along the guide plate 51 by bolts 54, 54 penetrating the elevating plate 53 and the long holes 51a, 51a and having their tips screwed to the elevating plate 52. Is bound to.

The lifting plate 52 has an L-shaped support base 55.
Is fixed, and the motor 5 for driving the drill is mounted on the support base 55.
6 is fixed and the rotation output shaft 56a (spindle) of the motor 56 is fixed.
A drill chuck 57 for holding a drill is held at the lower end of the drill chuck 57, and a drill 58 is detachably held by the drill chuck 57. Protrusions 53a, 53a are provided at the center of the rear surface of the elevating plate 53.
An engagement pin 59 is held between 53a.

A drive device 60 is fixed to the frame plate 50 with screws 61, 61 positioned on the outer surface of the upper portion of the vertical portion 50a. The drive device 60 includes a motor (not shown) and a gear reduction device that works in conjunction with the motor. An output shaft 60a of the gear reduction device penetrates the frame plate 50 and is arranged between the frame plates 50 and 50 '.

A disk-shaped cam 62 is coaxially and integrally provided on the output shaft 60a, a notch 62a for position detection is formed on the circumferential surface of the cam 62, and the cam 62 is formed on the inner surface of the frame plate 50. The micro switch 63 is fixed in close proximity. The micro switch 63 has an actuator lever 63a, and an engagement roller 63b provided at the tip of the actuator lever 63a is elastically contacted with the peripheral surface of the cam 62.

Both ends of a support shaft 64 located above are held by the frame plates 50 and 50 ', and an intermediate part of a plate-shaped drive lever 65 is rotatably held by the support shaft 64. At one end of the drive lever 65, a slit-shaped engagement notch 65a that opens to the tip is formed, and an engagement pin 59 is engaged with the engagement notch 65a.

The upper end of the link plate 66 is rotatably held at the other end of the drive lever 65 via a pivot 67.
At the lower end of the link plate 66, a pivot 68 attached to an eccentric position (peripheral edge) of the side surface of the cam plate 62 is rotatably held. The roller 6 of the micro switch 63
When 3b is engaged with the notch 62a of the cam 62,
A drill 58 that moves up and down together with the elevating plates 52 and 53 is located at the top dead center.

(Control Box C) The control box C is provided with a power switch 70, a reverse switch 71, and a start switch 72.

When the power switch 70 is turned on, a control circuit (not shown) is activated. In this state, when the start switch 72 is turned on, this control circuit turns on the motor 5
6 is operated to rotationally drive the rotary output shaft 56a to rotate the drill 58, while the drive device 60 is operated to positively rotate the output shaft 60a. With this rotation, the cam 62
2, the link plate 66 displaces the right end of the drive lever 65 upward and then downward in FIG. 2, whereby the left end of the drive lever 65 is lowered and then raised. . At this time, the lifting plates 52, 5
3 is a drive lever 65 integrally with the motor 56 and the drill 58.
It is lowered by and then raised.

Then, the drill 58 is displaced to the top dead center, and at the same time, the engaging roller 6 of the micro switch 63 is moved.
When 3b is engaged with the notch 62a of the cam 62, the micro switch 63 detects this position (initial position) and outputs a detection signal. This detection signal is input to the control circuit, and when the control circuit receives this detection signal, the operation of the motor 56 and the drive device 60 is stopped.

When the reverse rotation switch 71 is turned on while the drill 58 is being lowered, the control circuit stops the operation of the drive device 60 and then the drive device 60.
Is reversely rotated to reversely rotate the output shaft 60a, raise the elevating plates 52, 53, the motor 56 and the drill 58 to the top dead center (initial position), and stop the operation of the motor 56 and the driving device 60.

<Marking Device 2> The marking device 2 has a supporting device 80 for supporting the demo lens, a marker holding means 100, and a supporting and aligning device 110 for the ground lens with a suction cup.

The support device 80 is an L-shaped support plate 8
1 and a guide plate 82 fixed to the support plate 81
And a pair of support portions 83 mounted on the front surface 82a of the guide plate 82.

The supporting portion 83 has a pedestal 83a, a pad mounting plate 84 and a supporting plate 85. The pedestal 83a, the pad mounting plate 84 and the supporting plate 85 are arranged in this order on the front surface 8 of the guide plate 82.
It is fixed to 2a by a bolt 86. This pedestal 83
a is provided lower than the upper surface of the guide plate 82, and a pad member 87 made of rubber, synthetic resin, or the like is fixed to the front surface of the upper end portion of the pad mounting plate 84.

Further, the support plate 85 is projected in the horizontal direction in front of the guide plate 82, and the support plate 85 has an L-shape.
A character-shaped holding piece 88 is held so as to be movable in the longitudinal direction, and a spring receiving pin 89 is fixed to the lower surface of the base of the support plate 85. Is provided with a coil spring (biasing means) 90. Reference numeral 91 is a pad member made of rubber, synthetic resin or the like fixed to the vertical portion 88b of the holding piece 88 so as to face the pad 87, and 92 is a scale provided on the upper surface of the support plate 85.

The marker holding means 100 includes a guide plate 82.
And a guide plate 1 fixed to the slide member 101.
02 and an L-shaped support member 103 held by a guide plate 102 so as to be vertically movable.

A clamp screw 10 is attached to the support member 103.
The spring mounting member 105 is horizontally rotatably held via the spring 4, and the spring mounting member 105 has a pair of leaf springs 106,
The base end portion of 107 is fixed. At the tip of the leaf spring 106, a V-shaped bent marker holding portion 106a is formed.
Is formed, and the marker 108 engaged with the marker holding portion 106a is pressed against the marker holding portion 106a by the leaf spring 107, so that the marker 108 is detachably held between the leaf springs 106 and 107.

The support orientation device 110 includes a guide plate 82.
A slide member 111 provided with an engagement groove 111a to be engaged with, and an engagement plate 112 that is held by the slide member 111 so as to penetrate the slide member 111 and be slidable in a direction orthogonal to the engagement groove 111a. Moreover, an engaging claw 112a which is vertically bent downward is provided at the tip of the engaging plate 112.

A fixing screw 140 for fixing the Y table 13 to the X table 11 is attached to the Y table 13.

Next, the operation of the mounting hole drilling device for mounting the components of the rimless lens having such a structure will be described.

(1) Positioning Marking In the demonstration glasses 120 as shown in FIG. 7, a bridge 122 is provided between the lens-shaped demo lenses 121 and 121.
The lens stoppers 122a and 122a provided at both ends of the bridge 122 are fixed to the opposing edges of the demo lenses 121 and 121 with screws 123 and 123, respectively. Further, a temple mounting metal fitting (lens stopper) is provided on a portion of the edge portion of the demo lens 121 opposite to the bridge 122.
124 is fixed with a screw 125, and a temple mounting bracket 1
A temple (ear hook) 126 is attached to 24 via a hinge 127. The demo lens 121 has a lens shape curved in a three-dimensional direction.

By the way, the holding piece 88 is moved to the front end side of the support plate 85 against the spring force of the coil spring 90 to widen the gap between the pad members 87 and 91, and the demo lenses 121 on the left and right of the demonstration glasses 120. 121 support device 8
After mounting on the pair of support plates 85 of 0, the holding piece 88 is separated and the demo lens 121 is sandwiched between the pad members 87 and 91.

Next, the engaging groove 101 of the slide member 101
a is engaged with the guide plate 82, and the clamp screw 1
04 is loosened and the spring mounting member 105 is horizontally rotated, so that the tip of the marker 108 is screwed 123 or 1.
Aligning with the center of 25, the clamp screw 104 is tightened and the spring attachment member 105 is fixed.

In this state, the tip of the marker 108 is brought into contact with the upper surface of the demo lens 121, and the slide member 101
Is moved along the guide plate 82 to draw a positioning line on the left and right demo lenses 121, 121. After drawing this positioning line on the left and right demo lenses 121, 121, the clamp screw 104 of the marker holding means 100 is not loosened but left fixed.

On the other hand, the peripheral edge portion of the cloth lens (lens plate) is attached to the demonstration glasses 1 by a ball-slicing machine (lens grinding device) not shown.
Twenty demo lens 121 is ground into a rimless lens 130 as shown in FIG. A suction plate 131 for holding the rimless lens 130 on the lens rotation shaft of the ball slide machine is attached to the ground lens, that is, the rimless lens 130.

This suction plate 131 is a circular metal base 1.
31a is a cup-shaped body 131b made of rubber, synthetic resin, or the like.
Is integrally provided, and the rimless lens 13 has an axis center.
It is aligned with the optical center of 0. Further, the metal base 131a of the suction plate 131 is formed with a positioning groove 131c for holding and holding the suction plate 131 with respect to the lens rotation axis of the ball slide machine. ing.

Such a lens with a suction plate, that is, a rimless lens 130 is placed on a pair of supporting plates 85 of the supporting device 80, and the demo lens 121 is provided between the pad members 87 and 91.
To pinch.

Next, using the support and orientation device 110,
The mounting state of the rimless lens 130 on the support plate 82 is adjusted. That is, the engaging groove 111a of the slide member 111
Is engaged with the guide plate 82, and the engaging claw 112a provided on the engaging plate 112 is attached to the metal base 131 of the suction plate 131.
By engaging with the positioning groove 131c provided in a, the positioning groove 1
31c and the guide plate 82 are parallel to each other.

Thereafter, the engaging groove 101a of the slide member 101 of the marker holding means 100 with the clamp screw 104 fixed is engaged with the guide plate 82.

In this state, the tip of the marker 108 is brought into contact with the upper surface of the rimless lens 130, and the slide member 1
By moving 01 along the guide plate 82, a straight line for alignment is drawn on the rimless lens 130. This work is performed for the left and right rimless lenses.

(2) Machining of mounting hole (holding demo lens) Loosen clamp screw 27 and pad 1
With the distance between 8 and 29 greatly widened, the demo lens 121 on the right side is brought into contact with the pad 18, the positioning line 18a attached to this pad 18 is aligned with the positioning line attached to the demo lens 121, and the demo lens 121 Abut the positioning flange 21. In this state, tighten the fixing screw 25 and the clamp screw 27, and
The demo lens 121 on the right side is sandwiched and fixed between the nine.

When the demo lens 121 and the pad 18 are aligned with each other, the fixing screw 25 may be operated to rotate the support arm 23 to shift the pad 29 laterally from the pad 18. Further, in the figure, the demo lens 121 has a different orientation from the left one and the right one, but for convenience of explanation, the same reference numeral is given, and (L) is added to the left demo lens 121 to make the right demo lens 12
(R) is added to 1 for description.

Similarly, the left demo lens 121 is held between the pads 19 and 30. In addition, this demo lens 1
Bridge 1 of the demonstration glasses 120 when sandwiching 21
22, the temple mounting bracket 124, the demo lens 121,
It shall be removed from 121 in advance.

(Lens holding) On the other hand, the suction plate 131 is removed from the left and right rimless lenses 130 and 130 whose peripheral portions are ground, and the left and right rimless lenses 130 and 130 are attached to the pad of the lens holding means 6. 18 ', 2
It is held between 9 ′ and between 19 ′ and 30 ′. In the figure,
The direction of the rimless lens 130 is different from that of the one on the left side and the one on the right side, but the same reference numerals are given for convenience of description, and
In the description, (L) is added to the left lens 130 and (R) is added to the right lens 130.

(Drilling) Next, the supporting plate 4 is made with one hand.
4 is displaced upward against the spring force of the torsion spring 43, while holding the supporting wall 14 or 15 with the other hand, the demo lens holding means 5 and the lens holding means 6 are integrally moved forward, backward, leftward and rightward, The mounting hole provided in the demo lens 121 is aligned below the hole engagement element 45 at the tip of the support plate 44. At this time, the demo lens holding means 5 and the lens holding means 6 are moved by the action of the XY table 4.

Then, the support plate 44 is released and the hole engaging element 45 is engaged with the mounting hole of the demo lens 121 by the spring force of the torsion spring 43. Further, the support wall 14 or 15 is grasped to hold the demo lens holding means 5 and the lens. While the holding means 6 is integrally finely moved in the front-rear direction and the left-right direction, the operation knob 33 for adjusting the inclination is rotated and the operation shaft 16 is rotated, so that the tapered surface of the hole engaging element 45 is moved to the demo lens 121. Engage with the edge of the mounting hole over the entire circumference.

The rotating operation of the operating shaft 16 is transmitted to the operating shaft 16 'through the holding means interlocking means 7, that is, the timing gears 34, 35 and the timing belt 36, and the lens holding means 6 of the operating shaft 16' is transmitted. The peripheral portion of the rimless lens 130 held by is tilted in conjunction with the tilting operation of the peripheral portion of the demo lens 121. At this time, the peripheral edge of the rimless lens 130 and the peripheral edge of the demo lens 121 are in the same inclined state.

In this state, the center line of the mounting hole 121a of the demo lens 121 coincides with the axis of the hole engaging element 45, and a tangent plane passing through the point where the surface of the demo lens 121 and the center line of the mounting hole 121a intersect. Is substantially horizontal, and the axis of the hole engaging element 45 is orthogonal to this tangent plane.

When the power switch 70 is turned on at this position, a control circuit (not shown) operates. In this state, when the control circuit turns on the start switch 72, the motor 5
6 is operated to rotationally drive the rotary output shaft 56a to rotate the drill 58, while the drive device 60 is operated to positively rotate the output shaft 60a.

With this rotation, the cam 62 is rotated, and the link plate 66 displaces the right end portion of the drive lever 65 upward in FIG. 2, whereby the left end portion of the drive lever 65 is lowered. At this time, the elevating plates 52 and 53 are lowered together with the motor 56 and the drill 58 by the drive lever 65, and the drill 58 makes a mounting hole in the peripheral portion of the rimless lens 130.

The position where the mounting hole is formed in the rimless lens 130 is the position corresponding to the position of the mounting hole provided in the demo lens 121 having the same shape as the rimless lens 130. Moreover, the axis of this drill 58 is
Is perpendicular to a tangent plane that passes through the point where the tip of the rim contacts the outer surface of the rimless lens 130. Incidentally, this tangent plane is substantially horizontal.

When the cam 62 is further rotated and the link plate 66 displaces the right end portion of the drive lever 65 downward in FIG. 2, the left end portion of the drive lever 65 is raised. At this time, the lifting plates 52 and 53 are connected to the motor 5
6 and the drill 58 are lifted together by the drive lever 65, and are lifted after the drill 58 is separated from the rimless lens 130. With this rise, the drill 58
When the engaging roller 63b of the micro switch 63 is engaged with the cutout 62a of the cam 62 at the same time as the displacement of the micro switch 63 to the top dead center, the micro switch 63 detects this position (initial position) and outputs a detection signal. To do. This detection signal is input to the control circuit, and when the control circuit receives this detection signal, the operation of the motor 56 and the drive device 60 is stopped.

The start switch 72 described above is turned on.
Immediately after the operation, when it is found that the alignment is incomplete, the reverse rotation switch 71 is turned on. As a result, the control circuit stops the operation of the drive device 60 while the drill 58 is being lowered, and then reversely operates the drive device 60 to rotate the output shaft 60a in the reverse direction, so that the lifting plate 52, 53, the motor 56, and the drill 58 are raised to the top dead center (initial position), and the operation of the motor 56 and the drive device 60 is stopped.

[0068]

As described above, according to the present invention, the demo lens holding means for holding the demo lens provided with the mounting holes for mounting parts on the peripheral portion and the left and right sides of the demo lens held by the demo lens holding means. A lens holding means for holding the rimless lens after grinding processing corresponding to the eye and a mounting hole for mounting parts at a predetermined position on the peripheral portion of the rimless lens after grinding processing held by the lens holding means By adjusting the inclination of the hole processing means and the demo lens held by the demo lens holding means,
Since the rimless lens after grinding is held by the lens holding means and the tilt adjusting means for tilt-adjusting with respect to the drilling axis, the peripheral portion of the rimless lens whose peripheral portion is ground into the demo lens shape is formed. It is possible to easily make a mounting hole for mounting a component, which is provided at, at right angles to the tangent plane of the refracting surface without requiring skill.

[Brief description of drawings]

FIG. 1 is a plan view of a lens stop drilling device for a rimless lens according to the present invention.

2A is a schematic explanatory view of a part of the apparatus of FIG. 1 seen from a side surface, and FIG. 2B is an explanatory view of a main part of the cam shown in FIG. 2A.

FIG. 3 is an explanatory view showing the device shown in FIG. 1 partially broken and seen from the front.

FIG. 4 is a perspective view of a lens and a demo lens holding unit shown in FIG.

5 is an explanatory view of a demo lens holding portion shown in FIG.

FIG. 6 (a) is an explanatory view of the operation of the device according to the present invention, (b).
Is a description of the pad shown in (a).

FIG. 7 is a perspective view of a marking device used in a lens stop drilling device for a rimless lens according to the present invention.

FIG. 8 is a plan view of a supporting device which is a part of the marking device shown in FIG.

9 is an explanatory view of the operation of the marking device shown in FIG.

FIG. 10 is an explanatory view of the operation of the device for determining the orientation of the rimless lens supported by the supporting device shown in FIG.

[Explanation of symbols]

 121 ... Demo lens 5 ... Demo lens holding means 8 ... Hole position detecting means 130 ... Rimless lens 6 ... Lens holding means 9 ... Hole processing means 4 ... XY table (moving means)

Claims (1)

[Claims] 1. A grinding process is performed in correspondence with a demo lens holding means provided with a mounting hole for mounting a component and capable of holding a demo lens provided on a peripheral portion, and left and right eyes of the demo lens held by the demo lens holding means. A lens holding means for holding a rear rimless lens, a hole processing means for making a mounting hole for mounting a component at a predetermined position of a peripheral portion of the rimless lens after being ground held by the lens holding means, and the demo lens Rimless means for tilt-adjusting the ground rimless lens held by the lens-holding means by adjusting the tilt of the demo lens held by the holding means. Mounting hole drilling device for mounting lens parts.