JP2003025202A - Lens sticking method and sticking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent deformation of a lens at the time of sticking the lens as well as to equalize thickness of an sticking agent to stick the lens. SOLUTION: An sticking tray 1 having an sticking surface 1a and a shaft part 1b is set on an sticking base 2, and the sticking agent 4 is supplied to a center of the sticking surface 1a from the sticking agent supply device 3. Thereafter, the lens 5 is made contact with the sticking surface 1a, and the lens 5 is pressurized by set pressure in the direction of the sticking surface 1a by a pressurizing means (holding/carrier device 6, pressurizing device 18). Thereafter, either one or both of the sticking tray 1 and the lens 5 is or are rotated around its or their central shafts in the opposite direction of each other while maintaining this pressurized state, and the sticking agent 4 is diffused all over the sticking surface 1a by their pressure and centrifugal force. Thereafter, the sticking agent 4 is hardened by supplying a hardening medium such as heat, cooling air, light, etc., to harden the sticking agent 4 interposed between the sticking tray 1 and the lens 5 from a hardening agent supply device 7, and the lens 5 is stuck to the sticking tray 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lens (lens material) which is an object to be processed on an attachment plate used for processing a lens.
TECHNICAL FIELD The present invention relates to a lens attaching method and an attaching device for attaching a lens.

[0002]

2. Description of the Related Art As a conventional lens sticking method and sticking apparatus, the "lens sticking method and sticking apparatus thereof" described in Japanese Patent Publication No. 5-67379 is generally well known. The lens sticking method and the sticking device, the heat-soluble sticking agent is supplied to the sticking side lens surface of the lens, after the lens is pressure-bonded to the sticking surface of the sticking plate in the melting temperature atmosphere of the sticking agent, Centering is performed by setting the temperature at which the patch can be maintained in a fluid state, and by sandwiching it with a chuck claw that has a recess in the portion corresponding to the joint between the lens and the pasting plate that are pressed against each other. Centering is performed while holding the lens and the sticking plate in the mechanism section, and then the lens and the sticking plate are immersed in a cooling medium such as a cooling liquid while maintaining the holding state during the centering operation, or by a chuck claw. By spraying a cooling medium onto the lens and the sticking plate while maintaining the centered state, the lens and the sticking plate are forcibly cooled to cure the patch, so that the sticking eccentricity can be eliminated and good processing can be performed. But, hereinafter, it is described with reference to FIGS. 9 to 16.

FIG. 9 shows a perspective view of a lens attaching device. This lens sticking device 110 has a sticking agent applying unit 113 for applying a sticking agent 112 (see FIG. 11) to a lens surface 111a of a lens 111, and a lens supply pallet 114 for accommodating a plurality of lenses 111 to be stuck. Together with the X axis (arrow 133) and the Y axis (arrow 1
37) Lens transport unit 115 whose movement is controllable in the direction
And a sticking plate heating and feeding unit 119 that has a sticking plate heating supply pallet 119 that stores a plurality of sticking plates 118 in a heated state, and is movable and controllable in X and Y axis directions.
A heating centering unit 116 and a centering unit 123 for centering the lens 111 and the adhesive plate 118, and the lens 111 of the lens supply pallet 114 to the patch applying unit 113 and the lens 111 of the patch applying unit 113. To the heating centering unit 116, a second suction section 117 for transferring the sticking plate 118 of the sticking plate heating supply pallet 119 to the heating centering unit 116, and the lens 111 after centering. A cooling unit 124 that cools the sticking dish 118 to solidify the patch 112, and the lens 111 and the sticking dish 118 after sticking from the cooling unit 124 to the sticking plate heating supply pallet 119.
No. 3 to convey to the pasting plate storage pallet 125 attached to
Suction unit 126, suction units 117, 122, 126, and suction unit transport unit 127 that controls transport according to each process.
Etc.

The lens supply pallet 114 of the lens transfer unit 115 is controlled to move by a servo motor (not shown) in the X-axis direction transfer section 130 and the Y-axis direction transfer section 13.
It can be moved in the X- and Y-axis directions via 1. The X-axis direction transport unit 130 supports the movable table 132 that supports the lens supply pallet 114 and the movable table 132 in the X-axis direction 13.
3 includes a guide rod 134 and a support base 135 that movably support the guide. The Y-axis direction transport unit 131 cooperates with a block 136 fixed to the lower surface of the support base 135 to guide and support the lens supply pallet 114 in the X-axis direction 137 so as to be movable.
8 and a support base 139. Since the pasting plate heating / transporting unit 120 is also configured in the same manner as the lens transporting unit 115, the same members are designated by the same reference numerals and the description thereof will be omitted. The sticking plate heating / transporting unit 120 is provided with a plate heater 200 for heating the sticking plate 118 stored in the sticking plate heating storage pallet 119.

As shown in FIG. 10, the first suction portion 117 is composed of a tapered suction cylinder 141 and a lens supply shaft 142. The lens supply shaft 142 is horizontally moved via a first movable base 144 that is movably held by a guide rail 143 of the suction section transport unit 127, and is fixed to the movable base 144. The lens 111 stored in the lens supply pallet 114 is suction-held by the suction cylinder 141 and is conveyed to the patch applying unit 113 while being held by the supported support member 145 and vertically moved by the cylinder device 146. It is configured.

As shown in FIG. 11, the patch applying unit 113 includes a bent patch applying rod 14 for applying the heat-soluble patch 112 to the applying surface 111a of the lens 111.
7 and a patch supply device 148 accommodating the patch 112. The patch applicator stick 147 is held by the cylinder device 149 so as to be movable up and down so that it can be retracted from the patch 112, and the patch is attached. The patch 112 in the agent supply device 148 is configured to be applied to the sticking surface 111a of the lens 111. Reference numeral 150 is a unit base, reference numeral 151 is a movable member, reference numeral 152 is a guide rail, and reference numerals 152a and 152b are variable stoppers and displacement gauges, respectively.

As shown in FIGS. 13 and 14, the heating centering unit 116 includes a flange portion 11 of a sticking plate 118.
The centering table 121 is provided with a recessed portion for locking the shaft portion 8a of the sticking plate 118. The centering table 121 has a plate heater 153 for heating the centering table 121.
(See FIG. 9) is built in. Further, in the vicinity of the centering table 121, the heater 1 provided with two outlets 193 for sending hot air around the sticking plate 118 placed on the centering table 121.
92 is provided.

The centering unit 123 includes a unit base 165, a movable base 167 movable in the Y-axis direction 137 via a guide rail 166 fixedly mounted on the unit base 165, and a movable base. L-shaped member 1 fixed to the space 167
68, a vertical movable member 170 that is movable in the vertical direction with respect to the movable base 167 via a guide rail 169 fixed to the standing portion of the L-shaped member 168, and a vertical movable member 170.
The centering chuck portion 171 and the like arranged in the.
The ear 172 of the movable base 167 has a movable base 167.
A movable shaft 174 of a cylinder device 173 that moves the is connected. In addition, the upper horizontal portion 17 of the vertically movable member 170
A movable shaft 175 of a cylinder device (not shown) for vertically moving the vertically movable member 170 is connected to 0a. The centering chuck portion 171 includes a pair of chuck claws 176 arranged to face each other, and holding members 177, 1 of the chuck claws 176.
78 and a supporting rod 179 for supporting the holding members 177 and 178.
And a holding base portion 180.

As shown in FIGS. 13 and 14, the pair of chuck claws 176 includes a sticking plate 118 placed on the centering table 121 and a lens 111 on which a sticking agent 112 is placed. The lens 111 and the sticking plate 118 are radially opened / closed along the support rod 179 and are horizontally opened and closed along the guide rail 166 and the guide rail 169 so as to be centered and sandwiched and conveyed. It can be moved up and down. The chuck claws 176 are attached to the lens 111 at the tip side surface of each chuck claw 176.
When performing the centering operation between the adhesive plate 11 and the adhesive plate 118, the adhesive patch 11
The recess 190 is formed so that the two portions are not directly sandwiched. In addition, a planar V-shaped notch 191 is formed at the tip of each chuck claw 176 so as to stably hold the lens 111 and the sticking plate 118.

As shown in FIG. 12, the second suction portion 122 is composed of a suction cylinder 156 for suction-holding the flange portion 118a of the sticking tray 118, a sticking tray supply shaft 157 having the suction cylinder 156 attached to the tip thereof, and the like. ing. Sticking plate supply shaft 157
Is supported by a support member 159 fixed to a second movable base 158 that is horizontally movable along the guide rail 143, and is vertically moved by a cylinder device 161 via an operation plate 160. ing. Since the third suction section 126 is also configured similarly to the second suction section 122, the same members are designated by the same reference numerals and the description thereof will be omitted.

The cooling unit 124 is the centering unit 1.
23, after centering the sticking plate 118 and the lens 111, as shown in FIG. 15, in a state in which each chuck claw 176 centers and holds the lens 111 and the sticking plate 118 via the patch 112 in a heat-dissolving state. Cooling treatment, patch 112
Is set so that can be solidified. This cooling unit 1
Reference numeral 24 denotes a cooling tank 195 supported by a support base 199 and having an open upper portion, and a cylindrical sticking plate receiving portion 196 arranged in the center of the cooling tank 195 and having a recessed portion for accommodating the shaft portion of the sticking plate 118. , A cooling liquid 197 such as city water stored in the cooling tank 195, and a sticking plate receiving portion 196.
An appropriate number of circulation ports 198 for circulating the cooling liquid 197 are provided on the peripheral surface.

The lens attaching device 1 configured as described above
A method of sticking the lens 111 to the sticking plate 118 with 10 will be described. First, the lens supply pallet 11
The upper surface of the lens 111 housed in No. 4 is suction-held by the first suction unit 117 as shown in FIG. 10, and is conveyed to a position above the patch application unit 113.

Next, as shown in FIG. 11, the patch 112 in the patch feeding device 148, which is moved up and down by the patch applicator rod 147 and is attached to the tip thereof, is attached to the lower surface of the lens 111 on the sticking side (sticking surface). ) Apply to 111a. In parallel with this work, as shown in FIG. 12, the sticking plate 118 is taken out from the sticking plate heating / supplying pallet 119 of the sticking plate heating / transporting unit 120 by the second suction section 122, and the shaft part of the sticking plate 118 is shown in FIG. The heating centering unit 116 is mounted in the recess of the centering stand 121 as shown in FIG. Then, the first suction portion 117 is conveyed to above the concave portion of the centering table 121, the first suction portion 117 is lowered, and the lens 111 is pressure-bonded onto the sticking plate 118 with the patch 112 interposed.

Then, as shown in FIG.
1 and the outer peripheral surface of the sticking plate 118 are simultaneously sandwiched by a pair of chuck claws 176, and the plate heater 1
Heat with 53 and heater 192. By this heating, when the patch dish 118 and the patch 112 applied to the lens 111 come into contact with each other, the heat-dissolved state of the patch 112 is maintained,
Enables relative movement between the sticking plate 118 and the lens 111,
The lens 111 is attached to the dish 1 by the pair of chuck claws 176.
Center so that it can be attached to 18 regular positions.

When the centering operation is completed, the pair of chuck claws 176 move to the cooling unit 124 while holding the outer peripheral surfaces of the lens 111 and the sticking plate 118, and as shown in FIG. 15, a cylinder in the cooling tank 195. The shaft portion of the sticking plate 118 is housed in the concave portion of the sticking plate receiving portion 196, and the flange portion 118 a is placed on the upper surface of the sticking plate receiving portion 196 so as to be locked, so that the sticking plate is stuck by the cooling liquid 197. The agent 112 is forcedly cooled.

After completion of the cooling process, the chuck claw 176 is opened, and the lens 111 is suction-held by the suction cylinder 156 of the third suction unit 126 and conveyed to the sticking plate storage pallet 125 as shown in FIG. The sticking plate 118 to which the lens 111 is stuck is stored in a predetermined storage portion of the sticking plate storage pallet 125.

According to the lens sticking apparatus 110, by repeating the above series of operations, the lens 111 set on the lens supply pallet 114 and the sticking plate 118 set on the sticking plate heating supply pallet 119. The lenses 111 are picked up and conveyed, and the lenses 111 are automatically attached to the attachment plate 118 in a highly accurate centered state, and the attachment plates 118 to which the lenses 111 are attached are automatically attached to the attachment plate storage pallet 115. Can be stored in. The lens supply pallet 114 and the sticking plate storage pallet 125 are used for the lens 111 and the sticking plate 1 to be stuck.
When one cycle of the attaching work and the storing work of 18 is completed, in order to set the lens 111 to be attached next to a predetermined position and to store the next attaching plate 118 which has been attached, X, Y The movement is controlled in the axial direction,
This control is performed until the lenses 11 on the supply palette 114 are used up.

[0018]

However, in the "lens sticking method and sticking apparatus therefor" of Japanese Patent Publication No. 5-67379, the center thickness accuracy (tolerance ± 0) is much higher than that of the conventional lens. 0.005 mm or less) and spherical surface shape accuracy (PV value ≦ 0.05 wave: wavelength 630)
Up to 650 nm) is required for high precision lenses,
There is a problem that it cannot be applied because of the difficulty described below.

That is, when the lens 111 is attached to the attachment plate 118 for processing, the lens 111 after attachment is processed.
The center thickness of the sticking plate 118 is the surface of the sticking plate 118 (the flange portion 118a of the sticking plate 118 that contacts the centering table 121 shown in FIG. 13).
The dimension from the lower surface) to the processed surface of the lens 111 (the surface of the lens 111 that is ground / polished while being attached to the attachment plate 118) is measured and finished based on the substitute value. Therefore, the patch 112 for sticking the lens 111
If there is variation in the thickness of the patch 111, the variation directly affects the accuracy of the center thickness of the lens 111 after processing. Therefore, the variation in the thickness of the patch 112 must be minimized.

However, in the above-mentioned conventional "lens sticking method and sticking apparatus thereof", the thickness of the sticking agent 112 for sticking the lens 111 varies within a width of 0.01 mm to 0.02 mm, and the finished lens 111 is processed. The center thickness also varies to the same extent. In addition, the plate 1 with the lens 111 attached
When the lens 111 is attached in a deformed state due to the nonuniform contraction force of the patch 112 when attached to 18, no matter how highly precise the spherical shape is finished in that state,
When the lens 111 is peeled off from the sticking plate 118, the deformation of the lens 111 is restored and the finished highly accurate spherical shape changes. Therefore, the deformation of the lens 111 due to the attachment should be minimized. However, in the conventional “lens sticking method and sticking apparatus therefor”, the lens 11
When 1 is attached to the attachment plate 118 for processing, the spherical shape when the lens 111 is peeled off after the processing is 0.
1 to 0.2 wave also changes.

The present invention has been made in view of the problems of the above-mentioned prior art, and has a uniform thickness of the patch for sticking the lens, and the sticking without deforming the lens when sticking the lens. An object of the present invention is to provide a lens attachment method and an attachment device that can be attached.

[0022]

In order to solve the above-mentioned problems, the method of sticking a lens according to claim 1 of the present invention is a step of supplying a fixed amount of patch to the center of the sticking surface of a sticking plate for sticking a lens. And a step of bringing the lens into contact with the sticking surface of the sticking plate with a constant pressure through the supplied sticking agent, and rotating the lens and / or the sticking plate at a low speed while maintaining the above-mentioned state, and then applying the sticking agent to the sticking surface. The method is characterized by including a step of diffusing it over the entire surface and a step of supplying a curing medium to the patch to cure it.

That is, according to the lens attaching method of claim 1 of the present invention, as shown in the conceptual diagram of FIG. 1, the attaching plate 1 having the attaching surface 1a for attaching the lens and the shaft portion 1b (see FIG.
(See (a)), the adhesive surface 1a is set up on the adhesive base 2 (see FIG. 1 (b)), and the adhesive patch 3 is supplied from the adhesive patch supply device 3 to the center of the adhesive surface 1a ( Figure 1 (c)
reference). Then, the lens 5 is brought into contact with the patch surface 1a with the patch 4 interposed therebetween, and the pressure is applied to the patch surface 1a at a set pressure by a pressing means (holding / conveying device 6 and pressurizing device 18). The lens 5 is pressed. Then, while maintaining this pressed state, one or both of the sticking tray 1 and the lens 5 are rotated in opposite directions to each other about their central axes, and the supplied sticking is caused by the pressure and centrifugal force. The agent 4 is diffused over the entire attachment surface 1a (see FIG. 1 (d)). Next, a curing medium such as heat, cooling air, or light for curing the patch 4 interposed between the patch tray 1 and the lens 5 is supplied from the curing medium supply device 7 to cure the patch 4 and the lens 5 is fixed. Stick it on the sticker plate 1 (see FIG. 1 (e)).

Further, the lens attaching method according to claim 2 of the present invention comprises the steps of supplying a fixed amount of the patch to the center of the attaching surface of the attaching plate on which the lens is attached, and centrifuging by rotating the attaching plate. A step of diffusing the supplied patch on the entire sticking surface by force, a step of bringing a lens into contact with the sticking surface of the sticking plate with a constant pressure, and a step of supplying a curing medium to the patch to cure the patch. And having.

That is, according to the lens attaching method of claim 2 of the present invention, as shown in the conceptual diagram of FIG. 2, the attaching plate 1 having the attaching surface 1a for attaching the lens and the shaft portion 1b (see FIG. 2).
(See (a)), the adhesive surface 1a is set on the adhesive base 2 with the adhesive surface facing upward (see FIG. 2 (b)), and the adhesive patch 4 is supplied from the adhesive patch supply device 3 to the center of the adhesive surface 1a ( Figure 2 (c)
reference). Then, the patch plate 1 is rotated around its central axis, and the supplied patch 4 is diffused by the centrifugal force over the entire patch surface 1a (see FIG. 1 (d)). After that, the lens 5 is brought into contact with the patch surface 1a with the patch 4 interposed (see FIG. 1 (e)), and the sticking is carried out by a pressurizing means (holding / conveying device 6, pressurizing device 18). Surface 1a
The lens 5 is pressed with the set pressure in the direction of. The patch 4 interposed between the patch tray 1 and the lens 5 while maintaining this state
A curing medium such as heat, cooling air or light for curing the adhesive is supplied from the curing medium supply device 7 to cure the adhesive patch 4,
The lens 5 is attached to the attachment plate 1 (see FIG. 1 (f)).

Further, the lens sticking device according to claim 3 of the present invention is a sticking table having a rotatable chuck for fixing the sticking plate, and a patch feeding device for supplying the patch to the center of the sticking surface of the sticking plate. And a holding / conveying device that has a holding portion that holds the lens and the sticking plate, is rotatable about a central axis, and can move up and down in a vertical direction at a set pressure, and presses the upper surface of the lens with a constant pressure during sticking. It is characterized by having a pressurizing device and a curing medium supply device for supplying a medium for curing the patch.

That is, according to the structure of claim 1 of the present invention, a predetermined amount of the patch is supplied to the center of the sticking surface of the sticking plate, and the lens is brought into contact with the sticking surface at a set pressure to make the sticking plate and the lens. By rotating either one or both in opposite directions, the patch is spread over the entire patch surface, and the patch is interposed between the lens and the patch surface with a uniform thickness. While maintaining that state, the patch is cured by the patch curing means. By the above, a fixed amount of the supplied patch is evenly spread over the entire patch surface, so that the patch thickness can be made uniform and the lens can be efficiently applied to the application plate without deforming the lens. it can.

According to the second aspect of the present invention,
A predetermined amount of the patch is supplied to the center of the sticking surface of the sticking plate, and the sticking plate is rotated to diffuse the supplied patch by the centrifugal force over the entire sticking surface. Then, the lens is brought into contact with the sticking surface at a set pressure, and while maintaining this state, the sticking agent is cured by the sticking agent curing means. By the above, a fixed amount of the supplied patch is evenly spread over the entire patch surface, so that the patch has a uniform thickness and does not deform the lens.
The lens can be efficiently attached to the attachment plate.

Further, according to the structure of claim 3 of the present invention,
The sticking plate is transported by the holding / conveying device and fixed to the chuck, the patch is supplied from the patch feeding device to the center of the sticking plate, and the sticking plate is rotated together with the chuck to stick the supplied patch. Spread over the entire surface. Then, the lens is conveyed to the attaching surface of the attaching plate by the holding / conveying device, the lens is brought into contact with the attaching surface at a constant pressure by the pressurizing device, and the adhesive is cured by the curing medium supply device while maintaining this state. . By the above, a fixed amount of the supplied patch is uniformly spread over the entire patch surface, so that the patch has a uniform thickness,
Moreover, the lens can be efficiently attached to the attachment plate without deforming the lens.

[0030]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (Embodiment 1) Embodiment 1 of the present invention will be described with reference to FIGS. FIG. 3 is a schematic front view showing the lens sticking device of the present embodiment, and FIG. 4 is a view of the sticking stand of FIG. 3 seen from above.

Reference numeral 10 denotes a base of the lens sticking apparatus, and columns 10a and 10b are vertically fixed on the rear left and right of the base 10. Y is attached to the upper ends of the columns 10a and 10b.
The axis guide 17a is fixed, and the Y axis guide 17 is
An X-axis guide 17b is fixed to the movable body of a. A holding / conveying device 6 is fixed to the movable body of the X-axis guide 17b. By controlling the X-axis guide 17b and the Y-axis guide 17a having the above-mentioned configuration by an operation panel (not shown), the holding / conveying device 6 can be freely positioned on the XY plane of the base 10. It has become.

The holding / conveying device 6 is an air cylinder 6b.
The suction pad 6a is fixed to the lower end of the movable shaft 6c of the air cylinder 6b which is vertically moved. Vent holes are provided in the movable shaft 6c and the suction pad 6a, and are connected to a pneumatic device (not shown) by an air tube. By controlling the pneumatic equipment with an operation panel (not shown), the suction pad 6a holds the lens 5 and the sticking tray 1 by air suction, raises or lowers them, and releases air suction. You can do it.

A sticking table 2 is fixedly installed at the center of the base 10. A chuck 8 for supporting the sticking plate 1 is installed in the center of the sticking table 2 so as to be rotatable via a bearing 2a. A motor 16 is connected to the lower end of the chuck 8 so that the rotation operation (rotation speed, rotation time, timing) of the chuck 8 can be set by controlling the motor 16 with an operation panel (not shown). Has become. The chuck 8 is provided with a chuck hole (not shown) for holding the cylindrical sticking dish 1. A permanent magnet (not shown) is embedded in the bottom surface of the chuck hole of the chuck 8, and the shaft portion of the sticking plate 1 is inserted into the chuck hole with the sticking surface 1a at one end of the sticking plate 1 facing upward to stick the sticking plate 1a. The sticking plate 1 can be fixed to the chuck 8 by magnetically attaching the lower end of the shaft portion of the plate 1. The pasting surface 1a of the pasting dish 1 is formed in a shape corresponding to the surface shape of the lens 5 to be stuck (for example, when the lens surface shape is convex, it is concave).

A centering device 11 is fixedly provided on the upper surface of the sticking table 2 at a position facing the chuck 8 as a center. These two centering devices 11 are air devices 11
the movable shaft 11 of each air device 11a.
Centering member 1 having a "dogleg" surface 12a at the tip of b
2 are fixed respectively. The "doglegged" surfaces 12a of the two centering members 12 face each other toward the sticking tray 1 held by the chuck 8, and the centering device 11 uses a control panel (not shown) to operate the pneumatic equipment. By controlling and moving each movable shaft 11b forward, the "dogleg" surface 12a of the two centering members 12 is controlled.
By sandwiching the outer peripheries of the pasting dish 1 and the lens 5 at the same time, the axes of the pasting dish 1 and the lens 5 can be aligned.

Around the sticking plate 1 held by the chuck 8, a heater 7a for heating the sticking part of the sticking plate 1 and the lens 5 and an air nozzle 7b for supplying air for cooling the sticking part are provided. It is installed and the heater 7a
The air nozzle 7b constitutes a curing medium supply device. The heater 7a can be controlled on the operation panel by a closed circuit and a digital surface thermometer (not shown) installed near the chuck 8. Therefore, the temperature near the chuck 8 can be maintained at the set temperature ± 1 ° C. by feeding back the measured value of the digital surface thermometer. Further, the air nozzle 7b is connected to a cooling air supply device (not shown) and can be operated by an operation panel.

Further, a rotating shaft B is erected on the base 10 in the vicinity of the sticking table 2 so as to be located on an extension line in the X-axis direction passing through the center of the sticking plate 1 held by the chuck 8. There is. An arm 15 is attached to the upper part of the rotary shaft B, and the arm 15 is rotatable about the rotary shaft B in the direction of arrow A. The patch supply device 3 is fixed to the tip of the arm 15.

The patch supply device 3 includes a dispenser 3a.
The patch 4 is housed in the dispenser 3a. The patch supply operation of the patch supply device 3 and the rotation operation of the arm 15 can be performed by an operation panel (not shown), and when the arm 15 is rotated around the rotation axis B, the tip of the dispenser 3a. Is moved above the patch plate 1 held by the chuck 8 and the patch 4
Is supplied to the center of the application surface 1a of the application plate 1.

Further, on the upper surface of the base 10, pallet stands 9a, 9b are fixedly installed so that the pallets for accommodating the lenses 5 and the sticking plate 1 are placed so as to sandwich the sticking stand 2. A pallet 13 for accommodating a plurality of lenses 5 before being attached is placed on the pallet base 9b, and the pallet 13 is provided with a plurality of recesses for receiving the lenses 5. A pallet 14 for accommodating a plurality of sticking dishes 1 (including the sticking tray 1 to which the lens 5 is stuck) is placed on the pallet base 9a, and a plurality of holes for inserting the shaft portions of the sticking tray 1 are provided. It is provided individually.

With the lens attaching device having the above-mentioned structure, φ12 mm
The procedure for sticking the lens 5 of No. 3 to the sticking dish 1 with the heating / cooling type patch 4 will be described below. The operation control of each component is performed by an operation panel (not shown).

The pallet 13 containing the lens 5 is set on the pallet table 9b, and the pallet 14 containing the sticking plate 1 is set on the pallet table 9a. further,
The heating / cooling type patch 4 is set in the dispenser 3 a of the patch supply device 3. Then, the X-axis guide 17b and the Y-axis guide 17a are controlled to move the holding / conveying device 6 in the X-axis and Y-axis directions, and the suction pad 6a of the holding / conveying device 6 is moved.
Is positioned right above the pasting plate 1 stored in the pallet 14. Then, the air cylinder 6b is driven to lower the movable shaft 6c having the suction pad 6a fixed to the lower end, and the lower end (tip) of the suction pad 6a is placed on the upper surface of the sticking tray 1 (sticking surface 1a for sticking the lens 5). ) Contact.

Air suction by the suction pad 6a is turned on to suck the sticking tray 1 on the suction pad 6a and raise the movable shaft 6c of the holding / conveying device 6. X-axis guide 1
7b and the Y-axis guide 17a are controlled to position the holding / conveying device 6 directly above the chuck 8 of the sticking table 2. The movable shaft 6c of the holding / conveying device 6 is lowered, and the shaft portion of the sticking tray 1 is inserted into the chuck hole of the chuck 8. Then, the lower end of the shaft portion of the pasting dish 1 is magnetically attached by the permanent magnet embedded in the bottom surface of the chuck hole of the chuck 8, and the pasting dish 1 is fixed to the chuck 8.

Thereafter, the air suction is turned off to release the suction of the sticking plate 1 by the suction pad 6a, raise the movable shaft 6c of the holding / conveying device 6, and further move the holding / conveying device 6 above the sticking plate 1. More to the right of FIG. Next, the arm 15 is rotated counterclockwise in the direction of arrow A about the rotation axis B, and the dispenser 3a of the patch supply device 3 is rotated.
The tip of the above is positioned directly above the pasting dish 1. The dispenser 3a of the patch supply device 3 is controlled to supply a set amount of the patch 4 from the tip of the dispenser 3a to the patch surface 1a of the patch plate 1. In the present embodiment, the supply amount at this time is 5 ± 1 mg. Then, the arm 15 is rotated clockwise in the direction of arrow A to return the patch supply device 3 to the original position.

Next, the X-axis guide 17b and the Y-axis guide 17
The holding / conveying device 6 which has been retracted by controlling a.
The suction pad 6a is positioned right above the lens 5 housed in the pallet 13. The movable shaft 6c of the holding / conveying device 6 is lowered to bring the lower end (tip) of the suction pad 6a into contact with the upper surface of the lens 5. Then, the air suction by the suction pad 6a is turned on, and the lens 5 is sucked by the suction pad 6a.
And the movable shaft 6c of the holding / conveying device 6 is lifted.

By controlling the X-axis guide 17b and the Y-axis guide 17a, the lens 5 attracted to the suction pad 6a of the holding / conveying device 6 is fixed to the chuck 8 of the sticking table 2 of the sticking tray 1. Position right above.

The movable shaft 6c of the holding / conveying device 6 is lowered, and the lower surface of the lens 5 is brought into contact with the upper surface of the sticking surface 1a of the sticking dish 1 to which the patch 4 has been supplied. In this embodiment,
The contact load at this time was 300 gf. While maintaining this state, the chuck 8 is rotated at 30 rpm by the motor 16 at 3 rpm.
Rotate for 2 seconds to apply the patch 4 supplied to the patch surface 1a
And then the rotation of the chuck 8 is stopped.
Then, after the air suction is turned off to release the suction of the lens 5, the movable shaft 6c of the holding / conveying device 6 is raised.

Next, the movable shafts 11b of the centering device 11 are moved to move the centering members 12 forward so as to bring them closer to each other, and the sticking plate 1 is formed by the "doglegged" faces 12a of the two centering members 12. And the outer periphery of the lens 5 are sandwiched at the same time, and the pasting plate 1
And the axes of the lens 5 are aligned. Then, again, the movable shaft 6c of the holding / conveying device 6 is lowered to bring the suction pad 6a into contact with the upper surface of the lens 5. The contact load at this time was 300 gf as in the above. While maintaining this state, first the heater 7a heats the stuck portion at 80 ° C., and then the heater 7a is turned off. Next, a cooling air supply device (not shown) is operated to supply cooling air from the air nozzle 7b to cool the pasting portion. Then, when the patch 4 is cured, the supply of the cooling air is stopped.

After the patch 4 is hardened, the movable shafts 11b of the centering device 11 are moved to retract the two centering members 12 to release the sandwiching between the patch tray 1 and the lens 5 and the suction pad. Turn on air suction by 6a
Then, attach the lens 5 attached to the attachment plate 1 to the suction pad 6
The movable shaft 6c is raised in the state of being attracted to a. Then, the X-axis guide 17b and the Y-axis guide 17a are controlled to move the holding / conveying device 6 toward the pallet 14,
The sticking tray 1 to which the lens 5 sucked on the suction pad 6a of the holding / conveying device 6 is stuck is positioned right above the hole of the pallet 14.

Next, the movable shaft 6c of the holding / conveying device 6 is lowered, and the shaft portion of the sticking tray 1 is inserted into the hole of the pallet 14. Then, the air suction by the suction pad 6a
Then, the movable shaft 6c of the holding / conveying device 6 is raised.

By repeating the above series of operations, a desired number of lenses 5 are attached to the attachment plate 1. In addition, this series of operations can be continuously performed automatically by a single button operation on the operation panel.

According to the lens sticking method and sticking apparatus of the present embodiment, the sticking plate 1 for efficiently sticking the lens 5 to the sticking agent 4 with a uniform thickness and without deforming the lens 5 is provided.
Can be pasted on.

(Second Embodiment) A second embodiment of the present invention will be described with reference to FIGS. FIG. 5 is a schematic front view showing the lens sticking device of the present embodiment, and FIG. 6 is a view of the sticking stand of FIG. 5 seen from above.

In the lens sticking device of this embodiment, the function of pressing the lens on the sticking plate 1 which is held by the holding / conveying device 6 in the first embodiment is separated, and the pressing function is provided separately. The point that the device 18 is responsible is different from the first embodiment. Therefore, the same components as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

In this embodiment, the arm 15 has the rotation axis B.
The pressure device 18 is fixed to one end of the arm 15 on the opposite side of the patch supply device 3 so as to extend on both sides of the patch supply device 3. The pressure device 18 and the patch supply device 3 are arranged on the same circle centering on the rotation axis B, and the pressure device 18 moves the arm 15 to the rotation axis B in the same manner as the patch supply device 3. By the rotation operation in the direction of the arrow A, which is the center of the chuck 8, the chuck 8 can be positioned directly above.

The pressure device 18 is composed of an air cylinder 18b. A rubber terminal 18a is fixed to the lower end of a vertically movable shaft 18c of the air cylinder 18b. When the movable shaft 18c is moved downward, the lower end (tip) of the rubber terminal 18a is attached to a sticking surface. It is possible to contact the lens 5 on 1a and press the lens 5 toward the sticking plate 1 side.
The operation of the pressurizing device 18 can be controlled by an operation panel (not shown) in the same manner as the patch supplying operation of the patch supplying device 3 and the rotating operation of the arm 15.

With the lens sticking device having the above structure, φ12 mm
The procedure for sticking the lens 5 of No. 3 to the sticking dish 1 with the heating / cooling type patch 4 will be described below. The operation control of each component is performed by an operation panel (not shown).

The pallet 13 containing the lens 5 is set on the pallet table 9b, and the pallet 14 containing the sticking plate 1 is set on the pallet table 9a. further,
The heating / cooling type patch 4 is set in the dispenser 3 a of the patch supply device 3. Then, the holding / conveying device 6 is moved by controlling the X-axis guide 17b and the Y-axis guide 17a, and the suction pad 6a of the holding / conveying device 6 is moved to the pallet 14.
It is positioned above the pasting dish 1 stored in. Then, the air cylinder 6b is driven to lower the movable shaft 6c having the suction pad 6a fixed to the lower end, and the lower end of the suction pad 6a is brought into contact with the upper surface of the sticking tray 1 (sticking surface 1a for sticking the lens 5). Let

Air suction by the suction pad 6a is turned on to cause the sticking tray 1 to be sucked by the suction pad 6a to raise the movable shaft 6c of the holding / conveying device 6. X-axis guide 1
7b and the Y-axis guide 17a are controlled to position the holding / conveying device 6 directly above the chuck 8 of the sticking table 2. The movable shaft 6c of the holding / conveying device 6 is lowered, and the shaft portion of the sticking tray 1 is inserted into the chuck hole of the chuck 8. Then, the lower end of the shaft portion of the sticking dish 1 is magnetically attached to the permanent magnet embedded in the bottom surface of the chuck hole of the chuck 8, and the sticking dish 1 is fixed to the chuck 8.

After that, the air suction is turned off to release the suction of the sticking plate 1 by the suction pad 6a, raise the movable shaft 6c of the holding / conveying device 6, and further move the holding / conveying device 6 above the sticking plate 1. More to the right of FIG.

Next, the arm 15 is rotated counterclockwise in the direction of arrow A about the rotation axis B to position the tip of the dispenser 3a of the patch supply device 3 directly above the patch plate 1. And the dispenser 3 of the patch supply device 3
a is controlled, and a set amount of the patch 4 is supplied from the tip of the dispenser 3a to the center of the patch surface 1a of the patch plate 1. In the present embodiment, the supply amount at this time is 5 ± 1 mg. Then, the arm 15 is rotated clockwise in the direction of arrow A to return the patch supply device 3 to the original position.

Then, the chuck 8 is rotated by the motor 16 and the patch 4 supplied to the patch plate 1 by centrifugal force.
Are diffused over the entire attachment surface 1a. In this embodiment,
The rotation speed at this time was 800 rpm, and the time was 5 seconds.

Next, the X-axis guide 17b and the Y-axis guide 17
The holding / conveying device 6 which has been retracted by controlling a.
The suction pad 6a is positioned right above the lens 5 housed in the pallet 13. The movable shaft 6c of the holding / conveying device 6 is lowered to bring the lower end of the suction pad 6a into contact with the upper surface of the lens 5. Then, air suction by the suction pad 6a is turned on to suck the lens 5 onto the suction pad 6a, and the movable shaft 6c of the holding / conveying device 6 is raised.

Next, the X-axis guide 17b and the Y-axis guide 17
By controlling a, the lens 5 sucked by the suction pad 6a of the holding / conveying device 6 is positioned right above the sticking plate 1 fixed to the chuck 8 of the sticking table 2.

After that, the movable shaft 6c of the holding / conveying device 6 is lowered, and the lower surface of the lens 5 is brought into contact with the upper surface of the sticking surface 1a of the sticking dish 1 in which the patch 4 is diffused throughout. And
After turning off the air suction and releasing the suction of the lens 5,
The movable shaft 6c of the holding / conveying device 6 is raised to hold / hold again.
The transport device 6 is retracted from above the pasting dish 1 to the right side in FIG.

Next, the arm 15 is rotated clockwise around the rotation axis B in the direction of arrow A, and the pressure device 18 is positioned right above the lens 5 which is brought into contact with the sticking surface 1a of the sticking plate 1. To do. Then, the movable shaft 18b of the pressurizing device 18 is lowered, and the lens 5 is fixed by the rubber terminal 18c fixed to the lower end thereof.
Press the top surface of. In this embodiment, the load at this time is 300 gf.

Then, in the pressed state, the centering device 1
1 move each movable shaft 11b to move the centering members 12 forward so as to bring them closer to each other, and sandwich the outer peripheries of the sticking plate 1 and the lens 5 at the same time with the "dogleg" surfaces 12a of the two centering members 12, The axes of the attachment plate 1 and the lens 5 are aligned with each other. While maintaining this state, first the heater 7a to 80
After heating at ° C, the heater 7a is turned off. next,
A cooling air supply device (not shown) is operated to supply cooling air from the air nozzle 7b to cool the sticking portion. When the patch 4 hardens, the supply of the cooling air is stopped.

After the patch 4 is hardened, the movable shafts 11b of the centering device 11 are moved to retract the two centering members 12 to release the sandwiching between the patch tray 1 and the lens 5 and to apply pressure. Raise the movable shaft 18c of the device 18,
The arm 15 is rotated counterclockwise in the direction of arrow A to return the pressure device 18 to the original position. After that, the X-axis guide 17b and the Y-axis guide 17a are controlled to position the suction pad 6a of the holding / conveying device 6 directly above the lens 5 that has been attached, and the movable shaft 6c of the holding / conveying device 6 is lowered. Then, the suction pad 6a is brought into contact with the upper surface of the lens 5.

Then, the air suction by the suction pad 6a is turned on, and the movable shaft 6c is raised in a state where the lens 5 stuck to the sticking tray 1 is sucked on the suction pad 6a. By controlling the X-axis guide 17b and the Y-axis guide 17a,
The sticking tray 1 to which the lens 5 sucked on the suction pad 6a of the holding / conveying device 6 is stuck is positioned right above the hole of the pallet 14.

Next, the movable shaft of the holding / conveying device 6 is lowered, and the shaft portion of the pasting dish 1 is inserted into the hole of the pallet 14. Then, the air suction by the suction pad 6a is turned off.
Then, the movable shaft 6c of the holding / conveying device 6 is raised.

By repeating the above series of operations, a desired number of lenses 5 are attached to the attachment plate 1. In addition, this series of operations can be continuously performed automatically by a single button operation on the operation panel.

According to the lens sticking method and sticking apparatus of the present embodiment, the sticking plate 1 for efficiently sticking the lens 5 to the sticking agent 4 with a uniform thickness and without deforming the lens 5 is provided.
Can be pasted on. Further, since the pressing device 18 is provided so that the sticking load applied when the lens 5 is stuck can be finely set in a wider range, the present invention can be applied to sticking a wider range of lenses from a small diameter to a large diameter.

(Third Embodiment) A third embodiment of the present invention will be described with reference to FIGS. 7 and 8. 7 is a schematic front view showing the lens sticking device of the present embodiment, and FIG. 8 is a view of the sticking stand of FIG. 7 seen from above.

The lens sticking device according to the present embodiment is similar to the lens sticking device according to the second embodiment except that the heater 7a and the air nozzle 7b, which are the hardening medium supplying device, are replaced by ultraviolet rays (hereinafter, referred to as a hardening medium supplying device). , UV) is different from the second embodiment in that an irradiation device 7c is installed. Therefore, the same components as those in the second embodiment are designated by the same reference numerals and the description thereof will be omitted.

The UV irradiator 7c is installed on the upper surface of the sticking table 2, and is fixed from the front side toward the chuck 8 so that UV does not leak to the operator side. The UV irradiation device 7c can be controlled by an operation panel (not shown).

With the lens sticking device having the above structure, φ12 m
The procedure for attaching the lens 5 of m with the adhesive patch 4 made of a UV curable adhesive will be described below. However, the procedure for setting the sticking dish 1 on the chuck 8 from the pallet 14, supplying the patch 4 to the sticking dish 1, and setting the sticking dish 1 with the lens 5 attached on the pallet 13 is the same as in the second embodiment. Since they are the same, only different parts will be described.

The part different from the second embodiment is the patch 4
This is a step of curing (the UV curable adhesive in the present embodiment), and the step of curing the patch 4 is performed by the adhesive plate 1
The lens 5 is brought into contact with the sticking surface 1a of the sticking dish 1 with the patch 4 spread over the whole sticking surface 1a of the pressurizing device 1
In the state where the lens 5 is pressed against the sticking tray 1 by the set pressure by 8, the UV irradiation device 7c is controlled by the operation panel (not shown),
UV as a patch curing medium is irradiated to the patch 4 to cure it. In the present embodiment, the UV irradiation time for curing the UV curable adhesive is set to 3 minutes.

According to the lens sticking method and sticking apparatus of this embodiment, the same effect as in Embodiment 2 is obtained, and the sticking agent 4 is cured by the UV irradiation device 7c, so that the sticking apparatus is simplified. There is also an advantage that it can be realized.

The technical idea of the following configuration can be derived from the above-described specific embodiments. (Supplementary Notes) (1) A step of supplying a fixed amount of the patch to the center of the sticking surface of the sticking plate on which the lens is stuck, and abutting the lens on the sticking surface of the sticking plate with a constant pressure through the supplied sticking agent A step of rotating the lens and / or the sticking plate at a low speed while maintaining the pressurized state, and diffusing the patch to the front surface of the patch surface; and a curing medium for the patch while maintaining the pressed state. And a step of supplying and curing the lens.

(2) A step of supplying a fixed amount of the patch to the center of the patch surface of the patch plate on which the lens is stuck, and a step of rotating the patch plate and centrifuging the rotation to cause the supplied patch to be stuck to the surface. A step of diffusing over the entire surface, a step of bringing the lens into contact with the affixing surface of the affixing plate in which the affixing agent has been diffused with a constant pressure, and supplying a curing medium to the affixing agent while maintaining the pressure state to cure A method of attaching a lens, comprising:

(3) An adhesive table having a rotatable chuck for fixing the adhesive plate, an adhesive patch supplying device for supplying the adhesive patch to the center of the adhesive surface of the adhesive plate, and a holding unit for holding the lens and the adhesive plate. A holding / conveying device that has a central axis and is rotatable up and down so as to press the lens against the sticking plate at a set pressure and a medium that cures the patch. A lens sticking device, comprising: a medium supply device.

(4) The holding / conveying device conveys the pasting plate to the pasting table, conveys the lens to the pasting plate of the pasting table, and conveys the pasting plate having the lens pasted thereto from the pasting table. The lens sticking device according to the additional note (1) or (2).

[0081]

As described above, according to the first aspect of the present invention.
According to the lens sticking method according to, by interposing a patch between the lens and the sticking plate, by relatively rotating the lens and the sticking plate while contacting the lens with a constant pressure on the sticking surface of the sticking plate, The thickness of the patch can be made uniform, and the lens can be efficiently stuck to the sticking plate without deforming the lens by sticking.

According to the lens sticking method of the second aspect of the present invention, the sticking agent supplied to the sticking surface of the sticking plate can be diffused to the whole sticking surface by centrifugal force to make the thickness of the sticking agent uniform, Moreover, the lens can be efficiently attached to the attachment plate without deforming the lens by attachment.

According to the lens sticking device of the third aspect of the present invention, the same effects as those of the first and second aspects can be obtained.

[Brief description of drawings]

FIG. 1 is a conceptual diagram showing a lens attaching method according to claim 1 of the present invention.

FIG. 2 is a conceptual diagram showing a lens attaching method according to claim 2 of the present invention.

FIG. 3 is a schematic front view showing the lens sticking device according to the first embodiment of the present invention.

FIG. 4 is a view of the sticking table of FIG. 4 seen from above.

FIG. 5 is a schematic front view showing a lens attaching device according to a second embodiment of the present invention.

6 is a view of the sticking table of FIG. 5 as seen from above.

FIG. 7 is a schematic front view showing a lens attaching device according to a third embodiment of the present invention.

8 is a view of the sticking table of FIG. 5 as seen from above.

FIG. 9 is a perspective view showing a conventional lens sticking device.

FIG. 10 is a cross-sectional view showing a first suction portion of a conventional lens sticking device.

FIG. 11 is a cross-sectional view showing a patch applying unit of a conventional lens sticking device.

FIG. 12 is a cross-sectional view showing a second suction section of a conventional lens sticking device.

FIG. 13 is a cross-sectional view showing a heating centering unit and a centering unit of a conventional lens sticking device.

FIG. 14 is a perspective view showing a heating centering unit and a centering unit of a conventional lens sticking device.

FIG. 15 is a cross-sectional view showing a cooling unit of a conventional lens sticking device.

FIG. 16 is a cross-sectional view showing a third suction portion of a conventional lens sticking device.

[Explanation of symbols]

1 pasting plate 1a Attachment surface 2 sticking table 3 Patch supply device 4 patches 5 lenses 6 Holding / conveying device 7 Curing medium supply device 7a heater 7b air nozzle 7c Ultraviolet (UV) irradiation device 8 chuck 11 Centering device 16 motor 18 Pressurizing device

Claims (3)

[Claims] 1. A step of supplying a fixed amount of a patch to the center of the sticking surface of a sticking plate on which a lens is stuck, and bringing the lens into contact with the sticking surface of the sticking plate with a constant pressure via the supplied sticking agent. A step of rotating the lens and / or the sticking plate at a low speed while maintaining the above state to diffuse the sticking agent over the entire sticking surface; and a step of supplying a hardening medium to the sticking agent to cure the sticking agent. Characteristic lens attachment method. 2. A step of supplying a fixed amount of the patch to the center of the patch surface of the patch plate on which the lens is stuck, and the centrifugal force generated by rotating the patch plate to rotate the patch plate to the entire surface of the patch. And a step of bringing the lens into contact with the sticking surface of the sticking plate with a constant pressure, and a step of supplying a hardening medium to the sticking agent to cure the lens. 3. A sticking table having a rotatable chuck for fixing the sticking plate, a patch supply device for supplying the patch to the center of the sticking surface of the sticking plate, and a holding part for holding the lens and the sticking plate. A holding / conveying device that is rotatable about a central axis and that can move up and down at a set pressure in the vertical direction; a pressurizing device that presses the upper surface of the lens at a constant pressure during sticking; and a medium that cures the patch. A lens sticking device comprising: a hardening medium supplying device for supplying.