EP3075508B1 - Appareil et procédé de traitement de lentille de lunettes et appareil d'acquisition de données de commande de traitement de verres de lunettes - Google Patents

Appareil et procédé de traitement de lentille de lunettes et appareil d'acquisition de données de commande de traitement de verres de lunettes Download PDF

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Publication number
EP3075508B1
EP3075508B1 EP16163193.2A EP16163193A EP3075508B1 EP 3075508 B1 EP3075508 B1 EP 3075508B1 EP 16163193 A EP16163193 A EP 16163193A EP 3075508 B1 EP3075508 B1 EP 3075508B1
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EP
European Patent Office
Prior art keywords
processing tool
drive shaft
lens
boring
processing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP16163193.2A
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German (de)
English (en)
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EP3075508A3 (fr
EP3075508A2 (fr
Inventor
Yuuki Shimizu
Yuji Kanda
Katsuhiro Natsume
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nidek Co Ltd
Original Assignee
Nidek Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2015070978A external-priority patent/JP6596878B2/ja
Priority claimed from JP2015070979A external-priority patent/JP6503837B2/ja
Application filed by Nidek Co Ltd filed Critical Nidek Co Ltd
Publication of EP3075508A2 publication Critical patent/EP3075508A2/fr
Publication of EP3075508A3 publication Critical patent/EP3075508A3/fr
Application granted granted Critical
Publication of EP3075508B1 publication Critical patent/EP3075508B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
    • B24B9/14—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of optical work, e.g. lenses, prisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/02—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/06—Work supports, e.g. adjustable steadies
    • B24B41/061—Work supports, e.g. adjustable steadies axially supporting turning workpieces, e.g. magnetically, pneumatically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
    • B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/12—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving optical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
    • B24B9/14—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of optical work, e.g. lenses, prisms
    • B24B9/146—Accessories, e.g. lens mounting devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
    • B24B9/14—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of optical work, e.g. lenses, prisms
    • B24B9/148—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of optical work, e.g. lenses, prisms electrically, e.g. numerically, controlled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
    • B28D1/143—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling lens-drilling machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
    • B28D7/005—Devices for the automatic drive or the program control of the machines

Definitions

  • the invention relates to an eyeglass lens processing apparatus for boring eyeglass lens, an eyeglass lens processing control data acquisition apparatus for acquiring processing control data for processing boring eyeglass lens, an eyeglass lens processing method for boring eyeglass lens, and an eyeglass lens processing program.
  • an eyeglass lens processing apparatus for processing the periphery of a lens (eyeglass lens) so as to correspond to the shape of an eyeglass frame using a grinding tool (grindstone, cutter).
  • a so-called two-point frame rimless eyeglass
  • an eyeglass lens processing apparatus capable of automatically boring the lens using numerical value control (see, for example, JP 2003-145328A ).
  • an eyeglass lens processing apparatus according to the preamble portion of claim 1 is known from US 2009/047081 A1 .
  • the invention in view of the above-mentioned first problem of the conventional technology, has a technological object to provide an eyeglass lens processing apparatus, an eyeglass lens processing method and an eyeglass lens processing program which can perform an arbitrary boring operation suitably.
  • the invention also has a technological object to provide an eyeglass lens processing control data acquisition apparatus for obtaining processing control data suitable for performing the arbitrary boring operation.
  • the above apparatus needs many structures for driving transport devices to adjust the position of the processing tools, resulting in the upsizing of the apparatus. Also, control of many structures requires complicated control.
  • the invention in view of the above second problem of the conventional technology, has an object to provide an eyeglass lens processing apparatus capable of driving multiple processing tools with a simple structure.
  • the present invention achieves the above objects with an apparatus, a method and a computer program as defined by the appended independent claims 1, 6 and 7.
  • Advantageous embodiments are defined in the dependent claims.
  • Fig. 1 is a schematic structure view of a processing mechanism part of an eyeglass lens processing apparatus.
  • the eyeglass lens processing apparatus 1 includes a lens hold part 100, a lens shape measuring unit 200, a first processing tool unit 300 and a second processing tool unit 400.
  • the lens hold part 100 includes lens chuck shafts 102R, 102L for holding a lens (for example, an eyeglass lens) LE.
  • the lens shape measuring unit 200 includes a tracing stylus to be contacted with the refractive surfaces of the lens (the front and back surfaces of the lens) for measuring the shapes thereof.
  • the first processing tool unit 300 rotates a processing tool rotation shaft (grindstone spindle) 161a mounting thereon a first processing tool 168 for processing the periphery of the lens.
  • the second processing tool unit 400 includes a second processing tool 430 and a third processing tool 440 for processing the periphery of the lens.
  • the lens hold part 100 includes a lens rotating unit 100a, a chuck shaft moving unit 100b, and a shaft-to-shaft distance change unit 100c.
  • the lens rotating unit 100a rotates a pair of lens chuck shafts 102R, 102L.
  • the chuck shaft moving unit (X-direction moving unit) 100b moves the lens chucks 102R, 102L in the axial direction (which is defined as an X direction).
  • the shaft-to-shaft distance change unit (Y-direction moving unit) 100c moves the lens chucks 102R, 102L in a direction (Y direction) to come near to or part away from the grindstone spindle 161a, a processing tool drive shaft 430a with the second lens processing tool 430 mounted thereon, or a processing tool drive shaft 440a with the third lens processing tool 440 mounted thereon.
  • the Y-direction moving unit 100c is used also as a lens moving unit which moves the lens LE relatively in a direction to change the distance between the lens chuck shafts 102R, 102L and lens shape measuring unit 200.
  • the lens chuck shafts 102R, 102L are moved in the back-and-forth and right-and-left directions (XY direction).
  • the processing apparatus main body 1 mounts the lens hold part 100 on the base 170 thereof.
  • the lens chuck shaft 102L and lens chuck shaft 102R are rotatably and coaxially held on the left arm 101L and right arm 101R of the carriage 101 of the lens hold part 100 respectively.
  • the lens chuck shaft 102R is moved toward the lens chuck shaft 102L by a motor 110 mounted on the right arm 101R, whereby the lens LE is held by the two lens chuck shafts 102R, 102L.
  • the two lens chuck shafts 102R, 102L are rotated synchronously through a rotation transmission mechanism such as a gear by a motor 120 mounted on the right arm 101R.
  • These composing elements constitute the lens rotating unit 100a.
  • the carriage 101 is mounted on an X-axis movement support base 140 movable along shafts 103, 104 extending in parallel to the lens chuck shafts 102R, 102L and grindstone spindle 161a.
  • On the rear portion of the support base 140 there is mounted a ball screw (not shown) extending in parallel to the shaft 103, while the ball screw is mounted on the rotation shaft of the X-axis moving motor 145.
  • the motor 145 rotates, the carriage 101 together with the support base 140 is moved linearly in the X direction (the axial direction of the lens chuck shaft). This constitutes the X-direction moving unit 100b.
  • the motor 145 has, on the rotation shaft thereof, an encoder (not shown) serving as a detector for detecting the X-direction movement of the carriage 101.
  • the X-direction moving positions of the lens chucks 102R, 102L to be detected by the encoder (not shown) serving as the detector are used when the refractive surface shapes of the front and back surfaces of the lens are obtained.
  • a shaft 156 extends in a direction where the lens chuck shafts 102R, 102L and grindstone rotation shaft 161a are connected together and fixed to the support base 140.
  • the Y-direction moving unit 100c is structured such that it can be moved in a direction (Y direction) where the shaft-to-shaft distance between the lens chuck shafts 102R, 102L and grindstone rotation shaft 161a is changed about the shaft 103.
  • the Y-direction moving unit of the apparatus is structured such that the lens chuck shafts 102R, 102L are turned about the shaft 103. However, the distance between the lens chuck shafts 102R, 102L and grindstone rotation shaft 161a may also be changed linearly.
  • a Y-axis moving motor 150 is fixed to the support base 140.
  • the rotation of the motor 150 is transmitted to a ball screw 155 extending in the Y direction and, as the ball screw 155 rotates, the carriage 101 is moved in the Y direction.
  • the motor 150 has, on the rotation shaft thereof, an encoder 158 serving as a detector for detecting the Y-direction movement of the carriage 101.
  • the lens shape measuring unit 200 and second processing tool unit 400 are disposed at positions existing above the carriage 101 and opposite to the first lens processing tool 168 through the carriage 101.
  • the lens shape measuring unit 200 is fixed to the base 170 of the processing apparatus main body 1. It includes a lens edge position measuring part 200F and a lens edge position measuring part 200R.
  • the lens edge position measuring part 200F includes a tracing stylus to be contacted with the front surface of the lens LE, while the lens edge position measuring part 200R includes a tracing stylus to be contacted with the back surface of the lens LE.
  • the carriage 101 is moved in the Y-axis direction and the lens LE is rotated, whereby the edge positions of the lens front and back surfaces for lens peripheral processing are measured simultaneously.
  • the lens edge position measuring parts 200F and 200R can use, for example, structures disclosed in the JP2003-145328A .
  • the first processing tool unit 300 is arranged, on the base 170, opposed to (on the opposite side of) the lens shape measuring unit 200 across the carriage 101. It includes a first processing tool 168 which is one of the lens processing tools.
  • the first processing tool 168 is constituted of, for example, a rough grindstone for glass 162, a finishing grindstone 164 having a V groove (a bevel groove) for forming a bevel in the lens and a flat processing surface, a flat-finishing grindstone 165, a finishing grindstone 166 for finishing a lens with a high curve, a rough grindstone for plastics 167.
  • the first processing tool 168 is mounted coaxially on the grindstone rotation shaft (grindstone spindle) 161a which can be rotated by a motor 160.
  • the lens LE held by the lens chuck shafts (lens rotation shafts) 102L, 102R of the carriage 101 is pressure contacted with the first processing tool 168, whereby the periphery thereof is processed.
  • the first processing tool 168 has a large diameter, for example, a diameter of 60 ⁇ 100 mm for roughing and finishing the lens periphery with high efficiency. Of course, grindstones having various diameters can be used for such large diameter of the first processing tool 168.
  • Fig. 2 is a schematic structure view of the appearance of the second processing tool unit 400.
  • Fig. 2A is a top view of the unit 400 when viewed from the upper direction thereof (when viewed from above the sheet of Fig. 1 ).
  • Fig. 2B is a side view of the unit 400.
  • Fig. 3 is a section view of the unit 400.
  • Fig. 4 is an enlarged view of a processing tool part in the section view of the unit 400.
  • the unit 400 includes a second processing tool 430, a third processing tool 440, a first turning unit (first turning part) 470, a second turning unit (second turning part) 480, a drive part (motor) 421 and so on.
  • the third processing tool 440 is connected to the second processing tool 430 by a hold part 410.
  • the first turning unit is used as a first actuator
  • the second turning unit is used as a second actuator.
  • the second processing tool 430 is mounted on a drive shaft (processing tool drive shaft) 400a through a processing tool drive shaft 430a.
  • a finishing tool can be used as the second processing tool 430.
  • a processing tool for grooving the periphery of the lens can be used.
  • the second processing tool 430 is not limited to the grooving tool. There may also be used various processing tools (for example, a chamfering tool, a beveling tool, a processing tool for forming a step and a boring tool).
  • the second processing tool 430 is connected to the processing tool drive shaft (for example, shaft) 430a.
  • the processing tool drive shaft 430a is disposed within a second rotation shaft (for example, shaft) A2 which is discussed later, while it is supported rotatably on the second rotation shaft A2 by a bearing 431.
  • the number of bearings is not limitative.
  • the processing tool drive shaft 430a is connected to a processing tool drive shaft 400a of a motor 421 through a connecting member 432, whereby the second processing tool 430 and motor 421 are directly connected to each other. That is, in this embodiment, the processing tool drive shaft 430a of the second processing tool 430 and the processing tool drive shaft 400a of the motor 421 are coaxially arranged. Of course, they may also be arranged on different axes.
  • the second processing tool 430 rotates about the processing tool drive shaft 430a.
  • the processing tool drive shaft 430a of the second processing tool 430 provides a processing tool rotation shaft.
  • the lens periphery is processed by press contacting the lens LE held by the lens chuck shafts (lens rotation shafts) 102L, 102R of the carriage 101 with the second processing tool 430.
  • description is given of an example in which the second processing tool 430 rotates about the processing tool drive shaft 430a.
  • this is not limitative.
  • the second processing tool 430 may also move on the axis of the processing tool drive shaft 430a in the back-and-forth direction (X direction) to thereby process the lens LE.
  • the second processing tool 430 may also be constituted of a light source for emitting laser beam and thus it may irradiate laser beam toward the lens LE to thereby process the lens LE.
  • the third processing tool 440 is mounted on a processing tool drive shaft (for example, shaft) 440a.
  • a processing tool for boring the lens can be used as the third processing tool 440.
  • the third processing tool 440 is not limited to the boring tool.
  • Various processing tools for example, a chamfering tool, a beveling tool, a processing tool for forming a step and a boring tool
  • a chamfering tool for example, a beveling tool, a processing tool for forming a step and a boring tool
  • a processing tool for forming a step and a boring tool can be also used.
  • the third processing tool 440 is connected to a processing tool drive shaft (for example, shaft) 440a.
  • the processing tool drive shaft 440a is supported rotatably on a hold part 410 by two bearings 441.
  • the number of bearings is not limited to this.
  • the processing tool drive shaft 440a is connected through the processing tool drive shaft 430a to the processing tool drive shaft 400a of the motor 421.
  • the processing tool drive shaft 440a of the third processing tool 440 is arranged at a position different from the axis of the processing tool drive shaft 400a of the motor 421. That is, the rotation of the processing tool drive shaft 400a of the motor 421 is transmitted to the processing tool drive shaft 440a of the third processing tool 440 through a transmission member (for example, a one-way clutch to be discussed later).
  • a transmission member for example, a one-way clutch to be discussed later.
  • a pulley 442 is mounted on the processing tool drive shaft 440a with the third processing tool 440 thereon.
  • the processing tool drive shaft 430a with the second processing tool 430 mounted thereon is connected to a one-way clutch (which is hereinafter called a clutch) 490.
  • a pulley 435 is mounted on the clutch 490.
  • a bearing 438 is arranged behind the clutch 490 (in the motor 421 direction).
  • a belt 437 is extended between the pulleys 442 and 435, whereby the rotation of the motor 421 is transmitted to the processing tool rotation shaft 440a.
  • the rotation of the processing tool drive shaft 400a of the motor 421 is transmitted to the processing tool rotation shaft 440a of the third processing tool 440.
  • various structures can be employed as the structure for transmitting the drive of the motor 421 to the third processing tool.
  • the processing tool drive shaft 440a with the third processing tool 440 mounted thereon provides a processing tool rotation shaft enabling the third processing tool 430 to rotate about the processing tool drive shaft 440a.
  • a processing tool enabling the third processing tool 440 to rotate about the processing tool drive shaft can be used as the third processing tool 440.
  • this is not limitative.
  • the third processing tool 440 may also be structured to move in the back-and-forth direction (the direction along the axis) on the axis of the processing tool drive shaft 440a to thereby process the lens.
  • it may also be a light source for emitting laser beam and thus may irradiate laser beam toward the lens to thereby process it.
  • a single drive means is used in common for the second and third processing tools 430 and 440.
  • the motor 421 is used in common as the drive source of the second and third processing tools 430 and 440. Description is given below of a structure using a drive source in common.
  • the motor 431 can rotate the processing tool drive shaft 400a in normal and reverse directions.
  • the second processing tool unit 400 is structured such that, when the processing tool drive shaft 400a of the motor 421 is rotated in one of the normal and reverse directions, using the clutch 490, it transmits the rotation of the processing tool drive shaft 400a to the processing tool drive shaft 430a with the second processing tool 430 mounted thereon.
  • the second processing tool unit 400 is structured such that, when the processing tool drive shaft 400a of the motor 421 is rotated in the other direction, using the clutch 490, it transmits the rotation of the processing tool drive shaft 400a at least to the processing tool drive shaft 440a with the third processing tool 440 mounted thereon.
  • the rotation direction of the processing tool drive shaft 400a of the motor 421 driving of the processing tool drive shaft 430a with the second processing tool 430 mounted thereon and driving of the processing tool drive shaft 440a with the third processing tool 440 mounted thereon can be switched.
  • the rotation direction of the processing tool drive shaft 400a of the motor 421 and the rotation direction of the processing tool drive shaft 430a need not coincide with each other.
  • processing tool drive shaft 400a of the motor 421 and the rotation direction of the processing tool drive shaft 430a are different.
  • the processing tool drive shaft 400a of the motor 421 and the processing tool drive shaft 430a are rotated in the same direction.
  • Fig. 5 is an explanatory view of the structure of the one-way clutch 490.
  • the clutch 490 includes an outer ring 491, a needle roller 492 and a spring 493.
  • the outer ring 491 has a cam groove 494 and a cam surface 495.
  • the above-mentioned respective parts are arranged at specific intervals in the peripheral direction of the outer ring 491.
  • the pulley 435 is mounted on the outside 491a of the outer ring 491. This enables the outer ring 491 to rotate together with the pulley 435.
  • the processing tool drive shaft 430a is connected to the inside 491b of the outer ring 491.
  • the needle roller 492 is rollably arranged in a cam groove 494 formed in the outer ring 491 and is energized toward the meshing position of the cam surface 495 by the spring 493.
  • the needle roller 492 is engaged between the cam surface 495 and processing tool drive shaft 430a (a state shown in Fig. 5 ).
  • the outer ring 491 and pulley 435 are rotated.
  • the rotation of the pulley 435 is transmitted to the pulley 442, whereby the processing tool drive shaft 440a with the pulley 442 mounted thereon is rotated.
  • the rotation of the processing tool drive shaft 440a is transmitted to the processing tool drive shaft 440a of the third processing tool 440.
  • the right-handed rotation (clockwise rotation) is defined as a normal direction rotation
  • the counterclockwise rotation is defined as a reverse direction rotation.
  • the processing tool drive shaft 440a rotates, the processing tool drive shaft 430a also rotates. That is, when the third processing tool 440 is rotated, the second processing tool 430 is also rotated. Of course, only the third processing tool 440 may also be rotated.
  • the needle roller 492 is disengaged from the cam surface 495 and the outer ring 491 rotates idly (the rotation thereof is reduced). That is, since the needle roller 492 is disengaged from the cam surface 495, it is disengaged from the processing tool drive shaft 430a.
  • the rotation of the processing tool drive shaft 430a is not transmitted to the processing tool drive shaft 440a. That is, transmission of the rotation to the third processing tool is restricted and the second processing tool is rotated.
  • the third processing tool 440 is prevented against rotation, it is possible to restrict occurrence of a phenomenon that the rotation thereof facilitates invasion of water.
  • this embodiment is structured such that, when processing the periphery of the lens LE using the second processing tool 430, the rotation direction of the second processing tool 430 (processing tool drive shaft 430a) coincides with the rotation direction of the lens chuck shafts 102R, 102L. That is, in this structure, the rotation of the processing tool drive shaft 400a is transmitted to the processing tool drive shaft 430a such that the rotation direction of the processing tool drive shaft 430a coincides with the rotation direction of the lens chuck shafts 102R, 102L.
  • coincidence of the rotation direction of the processing tool drive shaft 430a with the rotation direction of the lens chuck shafts 102R, 102L enables the second processing tool 430 to up-cut process the periphery of the lens LE, whereby the lens periphery can have an excellent surface after it is processed by the second processing tool 430. That is, such up-cut processing of the lens periphery makes it hard for processed pieces produced in processing the lens LE periphery to attach to the processed portions of the lens LE. Therefore, the surface of the periphery of the lens LE after processed provides an excellent surface. Meanwhile, a boring tool hard to have an influence on a processed state depending on the rotation direction can be used as the third processing tool 440.
  • the processing tool drive shaft 430a mounted on the second processing tool 430 and the processing tool drive shaft 440a mounted on the third processing tool 440 are arranged in parallel.
  • this is not limitative.
  • the processing tool to be driven for processing can be switched. This eliminates the need to equip processing tools with the drive means separately and thus eliminates complicated control. Also, multiple processing tools can be driven with a simple structure. And, elimination of the separate drive means enables downsizing of the apparatus.
  • this embodiment has been described heretofore with reference to the structure using a one-way clutch as the clutch 490.
  • the clutch 490 various clutches can be applied.
  • an electromagnet clutch, a centrifugal clutch, or a fluid clutch may also be used.
  • use of a one-way clutch as a clutch enables switching of processing tools with a simple structure.
  • a one-way clutch does not need a larger space than other clutches, thereby enabling further miniaturization of the apparatus. Therefore, as the clutch 490, more preferably, the one-way clutch used in this embodiment may be used.
  • the first turning unit 470 includes, for example, a first rotation shaft (for example, shaft) A1, a motor 471, a gear 472, a gear 473, a prop 474, a gear 475 and a base part 402.
  • the motor 471 in this embodiment is structured such that the drive shaft (rotation shaft) can be rotated in normal and reverse directions.
  • the first rotation shaft A1 is arranged within the base part 402 and is fixed to a support base block 401.
  • the base part 402 is connected to the first rotation shaft A1 through a bearing (not shown) and is held on the support base block 401 such that it can be turned about the first rotation shaft A1.
  • the gear 472 is mounted on the drive shaft of the motor 471.
  • the gear 472 is rotated together.
  • the gear 472 is engaged with the gear 473.
  • the gear 473 is connected to the prop 474.
  • the prop 474 has a gear part to be engaged with the gear 475.
  • the rotation of the motor 471 is transmitted to the base part 402 through the gear 472, gear 473, prop 474 and gear 475.
  • the structure to transmit the rotation of the motor 471 to the base part 402 there may be applied various structures.
  • the rotation directions of the respective gears can be changed.
  • the direction of turning of the base part 402 about the first rotation shaft A1 can be switched.
  • the first turning unit 470 turns the base part 402 about the first rotation shaft A1 relative to the support base block 401.
  • the support base block 401 is fixed to the base 170.
  • a second rotation shaft A2 is connected to the base part 402.
  • the hold part 410, second processing tool 430, second turning unit 480 and the like are connected to the second rotation shaft A2.
  • the third processing tool 440 is connected to the second rotation shaft A2 (second processing tool 430) through the hold part 410.
  • the motor 421 is connected to the second rotation shaft A2 through the second turning unit 480.
  • the first turning unit 470 can turn the hold part 410, second processing tool 430, third processing tool 440, second turning unit 480, motor 421 and the like about the first rotation shaft A1.
  • the first turning unit 470 may have any structure so long as it can turn at least one of the second processing tool 430 and third processing tool 440.
  • the first turning unit 470 is structured such that it turns various parts relative to the support base block 401.
  • the first turning unit 470 may have any structure so long as it can change the relative position relationship between at least one of the second processing tool 430 and third processing tool 440 and lens chuck shafts 102R, 102L by use of turning.
  • the first rotation shaft A1 is arranged tilted 8° in the direction of the lens chuck shafts 102R, 102L (a direction going toward the first processing tool 168).
  • the tilt angle of the first rotation shaft A1 in the direction of the lens chuck shafts 102R, 102L may also be set at an arbitrary angle.
  • the first rotation shaft A1 may also be structured not to be tilted in the lens chuck shafts 102R, 102L direction.
  • the initial position of the base part 402 before turning by the first turning unit 470 is set for a position where the processing tool drive shaft 430a with the second processing tool 430 mounted thereon is parallel to the lens chuck shafts 102R, 102L.
  • a different position may also be set as the initial position (for example, a position of 15° with respect to the lens chuck shafts 102R, 102L).
  • the range of turning by the first turning unit 470 is set such that, with the initial position 0°, the second and third processing tools 430 and 440 can be turned 30° in a direction approaching the first processing tool 300.
  • the turning range is not limited to this but can be set arbitrarily.
  • the turning angle of (angle to be turned by) the first turning unit 470 is adjusted by setting the positions of the processing tool drive shafts of the processing tools with respect to the lens chuck shafts 102R, 102L. That is, by turning the second and third processing tools 430 and 440 such that an angle between the lens chuck shafts 102R, 102L and the processing tool drive shafts of the processing tools provides a specific angle (specific turn angle), the turn angle of the first turning unit 470 is adjusted.
  • description is given of an example in which the turn angle is set with respect to the lens chuck shafts 102R, 102L, but this is not limitative.
  • any structure so long as an arbitrary position is set as reference and the turn angle by the first turning unit 470 is adjusted with respect to the set position for example, a structure in which the turn angle is set with respect to the support base block 401, and a structure in which the turn angle is set with respect to the lens shape measuring unit 200.
  • the second turning unit 480 includes a second rotation shaft A2, a base part 481, a motor 482, a bearing 483, a bearing 484 and the like.
  • the motor 482 is fixed to the base part 402.
  • the motor 482 is structured such that the drive shaft (rotation shaft) thereof can be rotated in normal and reverse directions.
  • the rotation of the motor 482 is transmitted to the base part 481 through a gear (not shown), thereby rotating the base part 481.
  • the second rotation shaft A2 is arranged within the base part 402 and is rotatably connected to the base part 402 through the bearings 483 and 484.
  • the second rotation shaft A2 is a rotation shaft different from the first rotation shaft A1.
  • the motor 421 and second rotation shaft A2 are fixed to the base part 481.
  • the second rotation shaft A2 is fixed to the center of rotation of the base part 481. That is, by transmitting the rotation of the motor 482 to the base part 481, the second rotation shaft A2 and motor 421 are rotated relative to the base part 402 together with rotation of the base part 481.
  • the hold part 410, second processing tool 430 and the like are fixed to the second rotation shaft A2.
  • the third processing tool 440 is connected through the hold part 410 to the second rotation shaft A2 (second processing tool 430).
  • the processing tool drive shaft 430a with the second processing tool 430 mounted thereon is coaxially arranged within the second rotation shaft A2.
  • the second rotation shaft A2 rotates together with rotation of the base part 481
  • the hold part is rotated about the second rotation shaft A2, whereby the third processing tool 440 held by the hold part 410 is turned about the second rotation shaft A2.
  • the second turning unit 480 can turn the third processing tool 440 about the second rotation shaft A2.
  • the second turning unit 480 may have any structure so long as it can turn at least the third processing tool 440.
  • the rotation directions of the respective gears can be changed. This can switch the rotation direction of the base part 481 about the second rotation shaft A2. That is, by switching the rotation direction of the motor 482, the turning direction of the third processing tool 440 is switched.
  • the second turning unit 480 is described with reference to an example in which it turns various parts with respect to the base part 402. However, this is not limitative. There may be employed any structure so long as the second turning unit 480 can change the relative position relationship between the third processing tool 440 and lens chuck shafts 102R, 102L by use of turning.
  • the second rotation shaft A2 is arranged perpendicularly to the first rotation shaft A1.
  • the turn angle for adjusting the second processing tool unit 400 at an arbitrary position when turning operations are performed by the first and second turning units 470 and 480 can be reduced further, thereby enabling further downsizing of the apparatus.
  • the relationship between the second and first rotation shafts A2 and A1 is not limited to the structure in which they are arranged perpendicularly to each other.
  • the second rotation shaft A2 may also be arranged at an arbitrary angle to the first rotation shaft A1 (for example, it may be tilted by 8° with respect to the first rotation shaft A1).
  • the initial position of the third processing tool 440 (hold part 410) before turning by the second turning unit 480 is set such that the processing tool drive shaft 440a of the third processing tool 440 is situated below (just below in the Y direction) the processing tool drive shaft 430a of the second processing tool 430.
  • the initial position may also be set at a different position.
  • the range of turning by the second turning unit 480 is set such that, with the initial position 0°, the third processing tool 440 can be turned by 90° in a direction toward the first processing tool unit 300.
  • the turning range is not limited to this but can be set arbitrarily.
  • the third processing tool 440 waits at the initial position. That is, in this embodiment, the initial position of the second turning unit 480 is set as the retreat position of the third processing tool 440.
  • the retreat position is not limited to the initial position.
  • the retreat position of the third processing tool 440 may be set at any position so long as, while the second processing tool 430 is processing the lens LE, the third processing tool 440 is prevented from interfering with other parts.
  • the second turning unit 480 is driven and the third processing tool 440 is turned from the retreat position to a processing position. This enables the third processing tool 440 to process the lens LE.
  • Fig. 6 is a perspective view of a processing room 60 for performing lens processing.
  • the first processing tool 168, lens shape measuring unit 200, second processing tool 430, third processing tool 440, lens chuck shafts 102L, 102R and the like are arranged within the processing room 60.
  • Various driving devices such as the motors 110, 120, 145, 150, 160, 421, 471, 482 are arranged outside the processing room for eyeglass lens processing. Since the driving devices are arranged outside the processing room 60 in this manner, water to be used in processing can be restricted from invading into the driving devices. This can reduce the failure of the apparatus.
  • the second and third processing tools 430 and 440 use a driving device (for example, the motor 421) in common to thereby reduce the number of driving devices and the driving devices are arranged outside the processing room 60, the possibility of the apparatus failure can be reduced further.
  • Fig. 7 is a control block diagram relating to the eyeglass lens processing apparatus 1.
  • a non-volatile memory (memory device) 51 a lens hold part (lens hold unit) 100, a lens shape measuring unit 200, a first processing tool unit 300, a second processing tool unit 400 and a display 5 are connected to a control part 50.
  • the control part 50 includes, for example, a CPU (processor), a RAM and a ROM.
  • the CPU of the control part 50 controls the whole apparatus including the respective parts and the driving devices (for example, the motors 110, 120, 145, 150, 160, 421, 471 and 482) of the respective units.
  • the RAM stores various kinds of information temporarily.
  • the ROM of the control part 50 stores various programs, initial values and the like for controlling the operation of the whole apparatus.
  • the control part 50 may also be constituted of multiple control parts (that is, multiple processors).
  • the non-volatile memory (memory device) 51 is a non-transient memory medium which can hold storage contents even when supply of power is cut off.
  • the non-volatile memory (memory) 51 there can be used, for example, a hard disk drive, a flash ROM and a USB memory removably mounted on the eyeglass lens processing apparatus 1.
  • a touch-panel type display is used as the display 5.
  • the display 5 when the display 5 is a touch panel, the display 5 functions as an operation part (operation unit).
  • the control part 50 receives an input signal by a touch panel function owned by the display 5 to control the display of the figures, information and the like of the display 5.
  • the eyeglass lens processing apparatus 1 includes an operation part.
  • the operation part any one of a mouse, a joystick, a keyboard, a touch panel and the like may be used.
  • description is given with reference to a structure in which the display 5 functions as an operation part.
  • the eyeglass lens processing apparatus 1 is connected to an eyeglass frame shape measuring apparatus 2 (see, for example, the JP2012-185490A ).
  • the eyeglass lens processing apparatus 1 receives various data obtained by the eyeglass frame shape measuring apparatus 2 (the details of which are described later).
  • the eyeglass lens processing apparatus 1 and eyeglass frame shape measuring apparatus 2 may also be integrally constituted.
  • the measuring mechanism of the eyeglass frame shape measuring apparatus 2 is arranged in the eyeglass lens processing apparatus 1.
  • the memory 51 stores conditions for lens rotation speeds and grindstone speeds in roughing, finishing and polishing steps. It also stores processing conditions in every processing modes (for example, processing tool rotation speeds, processing tool moving speeds and the like).
  • Fig. 8 is a flow chart of an example of the control operation.
  • the target lens shape data are obtained by the eyeglass frame shape measuring apparatus 2.
  • this is not limitative.
  • an operator after removing a demonstration lens mounted on the eyeglass frame, reads the contour of the demonstration lens using a contour read device or the like to thereby measure the target lens shape data.
  • a data transmission switch not shown
  • the target lens shape data are transmitted from the eyeglass frame shape measuring apparatus 2.
  • this is not limitative.
  • there may also be employed a structure in which, by an operator operating the display 5 of the eyeglass lens processing apparatus 1, the target lens shape data are input.
  • the control part 50 displays a layout data setting screen for setting layout data with respect to the target lens shape data.
  • various processing conditions can be set (S2). For example, an operator operates the display 5 to set lay-out data such as the inter-pupil distance of an eyeglass wearer (PD value), the distance between the frame centers of the eyeglass frame F (FPD value), and the height of the optical center OC of the target lens shape with respect to the geometrical center FC thereof.
  • PD value inter-pupil distance of an eyeglass wearer
  • FPD value distance between the frame centers of the eyeglass frame F
  • FC the height of the optical center OC of the target lens shape with respect to the geometrical center FC thereof.
  • an operator by operating the display 5, sets the material of the lens, the kind of the frame and processing conditions for processing modes (such as beveling, grooving and boring).
  • the material of the lens for example, plastics and polycarbonate can be chosen.
  • this embodiment there is shown a structure in which, in the eyeglass lens processing apparatus 1, by operating the display 5, the layout data are set.
  • layout data are set in other apparatus or a PC (personal computer) and the eyeglass lens processing apparatus 1 (in this embodiment, the control part 50) receives the thus set layout data to thereby obtain the layout data.
  • PC personal computer
  • the operator allows the lens chuck shafts 102R, 102L to hold the lens LE.
  • a processing start switch (not shown) displayed on the display 5 is chosen by the operator, the control part 50 starts the processing of the periphery of the lens LE.
  • the control part 50 operates the lens edge position measuring parts 200F, 200R to measure the edge positions of the lens front and back surfaces based on the target lens shape data. According to the lens edge position measurement, it is confirmed whether the diameter of an un-processed lens LE is short or not with respect to the target lens shape.
  • the control part 50 starts roughing (S4).
  • the control part 50 For roughing the lens LE periphery, the control part 50, according to the target lens shape data and layout data, obtains processing control data (control data) for driving the respective parts.
  • the control part 50 controls the driving of the X-axis moving motor 145 to arrange the lens LE on a rough grindstone 163.
  • the control part 50 controls the driving of the Y-axis moving motor 150 while rotating the lens LE using the motor 120.
  • the periphery of the lens LE is roughened by multiple times of rotations of the lens LE.
  • the processing is transferred to finishing (in this embodiment, flat-finishing).
  • the control part 50 according to the target lens shape data and layout data, obtains flat-finishing control data for flat-finishing the lens periphery.
  • the control part 50 controls the driving of the X-axis moving motor 145 to arrange the lens LE on the flat-finishing surface of a finishing grindstone 164.
  • the control part 50 controls the driving of the Y-axis moving motor 150 to flat-finish the lens LE using the finishing grindstone 164.
  • the processing is transferred to a next processing. For example, when a grooving mode is set, the processing is transferred to the grooving mode. Also, when a boring mode is set, the processing is transferred to the boring mode.
  • the control part 50 obtains grooving data (the rotation of the lens chuck shafts, control data on the X-direction movement thereof, control data on the Y-direction movement thereof, the first turn angle ⁇ about the first rotation shaft A1, and the second turn angle ⁇ about the second rotation shaft A2) and, according to the grooving data, grooving is performed (S6).
  • the second turn angle ⁇ about the second rotation shaft A2 is set for 0°. That is, the third processing tool 440 is held at the retreat position.
  • the third processing tool 440 is prevented from interfering with other parts.
  • the second turn angle ⁇ about the second rotation shaft A2 in processing using the second processing tool 430 may be set such that, in grooving by the second processing tool 430, the third processing tool 440 is held at a position where it is prevented from interfering with other parts.
  • Fig. 9 is a view to explain the grooving.
  • L1 shows an axis parallel to the lens chuck shafts 102R, 102L.
  • the initial position of the first turning unit 470 is set at a position where the processing tool drive shaft 430a with the second processing tool 430 mounted thereon is parallel to the lens chuck shafts 102R, 102L. That is, L1 is an axis which, when the first turning unit 470 is retained at the initial position, is parallel to the processing tool drive shaft 430a with the second processing tool 430 mounted thereon.
  • L2 shows the axis of the processing tool drive shaft 430a when the first turning unit 470 turns the second processing tool 430 by the first turn angle ⁇ about the first rotation shaft A1. That is, in Fig. 9 , the first turning unit 470 has turned by the first turn angle ⁇ . Thus, the second processing tool 430 (processing tool drive shaft 430a) has been turned by the first turn angle ⁇ .
  • the control part 50 drives the motor 471 and, according to the grooving data (the first turn angle ⁇ obtained), turns the second processing tool 430 by the first turn angle ⁇ about the first rotation shaft A1 to thereby control it to move to the processing position. That is, the control part 50, while controlling the first turning unit 470 such that an angle between the lens chuck shafts 102R, 102L and the processing tool drive shafts of the respective processing tools provides the first turn angle ⁇ obtained, turns the second and third processing tools 430 and 440. Then, the control part 50, while driving the motors 145 and 150, moves the carriage 101 in the XY direction to position the lens LE on the second processing tool 430.
  • control part 50 rotates the motor 421 in a normal direction, whereby the rotation of the motor 421 is transmitted only to the processing tool drive shaft 430a and thus only the second processing tool 430 is rotated. Then, the control part 50, according to the grooving data, controls the movement of the carriage 101 in the XY direction, the rotation of the lens LE, and the first turn angle ⁇ of the processing tool drive shaft 430a of the second processing tool 430, whereby the lens LE is pressed against the second processing tool 430 for grooving the periphery of the lens LE.
  • such grooving may also be performed, for example, in such a manner that, while changing the turn angles of the second processing tool 430 at the respective grooving points and also rotating the lens LE by moving the carriage 101 in the Y-axis direction and in the X-axis direction, the lens LE is pressed against the rotating second processing tool 430.
  • This structure enables grooving to the curve of the lens and prevents the width of the groove from being processed widely.
  • the sequence of the control (operation) of such grooving may be arbitrary. Of course, multiple controls may also be made simultaneously.
  • Fig. 10 is an explanatory view of boring performed by turning of the second turning unit 480.
  • Fig. 11 is an explanatory view of boring performed by turning of the first turning unit 470.
  • Figs. 10 and 11 for convenience, show a case where boring is performed in the lens LE to be processed.
  • L3 shows a line connecting together the second rotation shaft A2 and processing tool drive shaft 440a when the second turning unit 480 is retained at the initial position.
  • an initial position before turning by the second turning unit 480 is set at a position where the processing tool drive shaft 440a of the third processing tool 440 is situated below the processing tool drive shaft 430a of the second processing tool 430.
  • L4 shows a line connecting together the second rotation shaft A2 and processing tool drive shaft 440a when the second turning unit 480 turns the third processing tool 440 (processing tool drive shaft 440a) by the second turn angle ⁇ about the second rotation shaft A2. For example, when the second turn angle ⁇ of the second turning unit 480 is obtained, the third processing tool 440 (processing tool drive shaft 440a) is turned by the second turn angle ⁇ obtained.
  • L5 shows a line parallel to the lens chuck shafts 102R, 102L.
  • the initial position of the first turning unit 470 is set at a position where the processing tool drive shaft 440a with the third processing tool 440 mounted thereon is parallel to the lens chuck shafts 102R, 102L. That is, L5, when the first turning unit 470 is retained at the initial position, is an axis parallel to the processing tool drive shaft 440a with the third processing tool 440 mounted thereon.
  • L6 shows the axis of the processing tool drive shaft 440a when the first turning unit 470 turns the third processing tool 440 by the first turn angle ⁇ about the first rotation shaft A1. That is, in Fig. 11 , the first turning unit 470 has turned by the first turn angle ⁇ . That is, the third processing tool 440 (processing tool drive shaft 440a) has been turned by the first turn angle ⁇ .
  • the control part 50 obtains boring data (the rotation of the lens chuck shafts 102R, 102L, X-direction movement control data, Y-direction movement control data, first turn angle ⁇ about the first rotation shaft A1, the second turn angle ⁇ about the second rotation shaft A2) and, according to such boring data, bores the lens (S7).
  • boring data the rotation of the lens chuck shafts 102R, 102L, X-direction movement control data, Y-direction movement control data, first turn angle ⁇ about the first rotation shaft A1, the second turn angle ⁇ about the second rotation shaft A2
  • the boring data may only be obtained at least according to the boring data.
  • the boring data is obtained by measuring a demonstration lens (dummy lens) by the eyeglass frame shape measuring apparatus 2.
  • the demonstration lens is photographed and a hole is detected from the photographed demonstration lens, thereby obtaining the boring data.
  • a structure for obtaining the boring data is not limited to the structure for measuring the demonstration lens.
  • the boring data may also be obtained by a structure in which an operator operates and inputs the display 5.
  • the boring data may be at least one of boring position data and boring direction data.
  • the boring position data and boring direction data is obtained as the boring data.
  • Fig. 12 is an explanatory view of the boring position data.
  • Fig. 13 is an explanatory view of the boring direction data.
  • the boring position data of a hole PI formed on the lens is obtained as polar coordinates (A ⁇ , ⁇ d) with respect to the geometrical center of the lens LE (or, the optical center of the lens LE).
  • the reference of ⁇ is defined as a horizontal direction H in a state where an eyeglass wearer wears an eyeglass frame.
  • the boring position data may also be expressed by an orthogonal coordinate system.
  • the boring direction data represent the tilt direction of a hole.
  • the boring direction data are obtained as the tilt angle ⁇ of the hole center axis PL passing through the center of a hole P1 in the lens LE with respect to the lens chuck shafts 102R, 102L.
  • the boring direction data may also be set with respect to other reference different from the lens chuck shafts 102R, 102L.
  • the control part 50 obtains the first turn angle ⁇ and second turn angle ⁇ which allow the hole center axis PL passing through the center of a hole P1 in the lens LE and processing tool drive shaft 440a to be parallel to each other. Firstly, according to the boring direction data, the control part 50 operates the first turn angle ⁇ such that the tilt angle ⁇ and first turn angle ⁇ coincide with each other. Next, according to the boring position data, the control part operates the second turn angle ⁇ , and the rotation amounts, X-direction moving amounts and Y-direction moving amounts (driving amounts) of the lens chuck shafts 102R, 102L. Here, the boring position data are converted to the XY-direction data of the apparatus before they are used. In the above-mentioned manner, the boring processing data are operated.
  • the control part 50 bores the lens according to the obtained boring data. For example, while controlling the driving of the boring tool drive shaft according to any one of the first turn angle ⁇ and second turn angle ⁇ , it bores the lens.
  • it when, in the obtained boring data, at least any one of the first turn angle ⁇ and second turn angle ⁇ is 0°, it bores the lens without driving the turning unit for which the turn angle of 0° is obtained.
  • the first turn angle ⁇ is 0°. Therefore, it does not drive the first turning unit 470 from the initial position.
  • the control part 50 controls the driving of the first turning unit 470 according to the obtained first turn angle ⁇ . That is, it drives the motor 471 to turn the third processing tool 440 by the first turn angle ⁇ about the first rotation shaft A1, thereby adjusting the position of the third processing tool 440. Also, it controls the driving of the second turning unit 480 according to the obtained second turn angle ⁇ . That is, it drives the motor 482 to turn the third processing tool 440 by the second turn angle ⁇ about the second rotation shaft A2, thereby adjusting the position of the third processing tool 440.
  • the control part 50 rotates the motor 421 in the reverse direction, whereby the rotation of the motor 421 is transmitted to the processing tool drive shaft 440a to rotate the third processing tool 440.
  • the boring data the rotation amounts of the lens chuck shafts 102R, 102L
  • it rotates the lens chuck shafts 102R, 102L.
  • the boring data X-direction moving amount, Y-direction moving amount
  • it drives the motors 145 and 150 to move the carriage 101 in the XY direction, thereby allowing the third processing tool 440 to bore the lens. That is, the lens is bored by XY moving the carriage 101 in the axial direction of the processing tool drive shaft 440a of the third processing tool 440.
  • the operation of the boring there can be used the boring operation disclosed in the JP2003-145328A .
  • first and second turn angle directions When the boring operation is performed while the driving operations in the two turning directions (first and second turn angle directions) are combined, holes can be bored in an arbitrary direction. That is, arbitrary boring operations can be performed suitably.
  • Use of the two first and second turning units 470 and 480 enables the processing tool drive shafts of the boring tools to turn in the two directions. This eliminates the need, as in the conventional technology, to move linearly (drive linearly) the processing tool drive shafts of the boring tools for boring a hole in an arbitrary direction, thereby eliminating a space for a mechanism for moving linearly the processing tool drive shafts of the boring tools. This enables miniaturization of the apparatus. Also, as in this embodiment, due to employment of a structure in which the first turning unit 470 is allowed to turn the boring tool (third processing tool 440) and further the second turning unit 480, arbitrary boring can be performed with a further simplified structure.
  • an eyeglass lens processing apparatus may have any structure so long as it can perform a driving operation with two turning directions (first and second turn angle directions) combined.
  • a structure including two or more turning units or, a structure capable of moving one boring tool in a three-dimensional direction. That is, the structure may be capable of moving on a space (area) formed (combined) by a turning area about a first rotation shaft and a turning area about a second rotation shaft.
  • the second and third processing tools 430 and 440 use the driving device (for example, the motor 421) in common.
  • driving devices are provided separately for the second and third processing tools 430 and 440.
  • turning units may also be provided separately for the second and third processing tools 430 and 440.
  • the second and third processing tools 430, 440 may also be used in common with the turning units.
  • the control part 50 of the eyeglass lens processing apparatus 1 obtains the first turn angle ⁇ and second turn angle ⁇ for boring.
  • a structure for obtaining the first turn angle ⁇ and second turn angle ⁇ may also be replaced with a structure which is provided by other eyeglass lens processing control data acquisition apparatus.
  • the control part of the eyeglass lens processing control data acquisition apparatus obtains boring data with respect to the lens LE. According to the obtained boring data, it obtains the first turn angle ⁇ of a processing tool drive shaft with the boring tool mounted thereon about the first rotation shaft A1 and the second turn angle ⁇ of the processing tool drive shaft with the boring tool mounted thereon about the second rotation shaft A2 different from the first rotation shaft A1.
  • the boring processing data including the obtained first turn angle ⁇ and second turn angle ⁇ are transmitted to an eyeglass lens processing apparatus including a boring tool.
  • the eyeglass lens processing apparatus controls the boring tool according to the boring processing data to thereby bore the lens.
  • eyeglass lens processing software for performing the function of the above embodiment can be supplied to a system or an apparatus through network or various storage mediums; and, the computer (for example, CPU) of the system or apparatus can read out the program and execute it.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Mining & Mineral Resources (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Claims (8)

  1. Appareil de traitement de verre de lunettes pour percer un verre de lunettes, comprenant :
    un outil de perçage (440) configuré pour percer le verre de lunettes ;
    un arbre d'entraînement d'outil de perçage (440a) configuré pour entraîner l'outil de perçage (440) ;
    un moyen d'acquisition de données de perçage (50) configuré pour obtenir des données de perçage concernant le verre de lunettes ;
    un moyen d'acquisition d'angle de rotation (50) configuré pour obtenir, selon les données de perçage, un premier angle de rotation (α) de l'arbre d'entraînement d'outil de perçage (440a) autour d'un premier arbre de rotation (A1) et un deuxième angle de rotation (β) de l'arbre d'entraînement d'outil de perçage (440a) autour d'un deuxième arbre de rotation (A2) différent du premier arbre de rotation (A1) ; et
    un moyen de commande (50) configuré pour commander l'entraînement de l'arbre d'entraînement d'outil de perçage (440a) pour percer le verre de lunettes selon au moins l'un quelconque des premier et deuxième angles de rotation (α, β),
    une première partie tournante (470) configurée pour faire tourner l'arbre d'entraînement d'outil de perçage (440a) autour du premier arbre de rotation (A1) ; et
    une deuxième partie tournante (480) configurée pour faire tourner l'arbre d'entraînement d'outil de perçage (440a) autour du deuxième arbre de rotation (A2),
    un ordinateur capable de lire un programme informatique stocké dans un support lisible par ordinateur et capable d'amener le moyen (50) à exécuter les étapes du procédé de la revendication 6 ;
    dans lequel le moyen de commande (50) commande l'entraînement de l'arbre d'entraînement d'outil de perçage (440a) en commandant l'entraînement de la première partie tournante (470) selon le premier angle de rotation (α) obtenu par le moyen d'acquisition d'angle de rotation (50) et en commandant l'entraînement de la deuxième partie tournante (480) selon le deuxième angle de rotation (β) obtenu par le moyen d'acquisition d'angle de rotation (50),
    caractérisé en ce que
    la première partie tournante (470) a un premier moteur (471) et est configurée pour faire tourner l'arbre d'entraînement d'outil de perçage (440a) autour du premier arbre de rotation (A1) en commandant l'entraînement du premier moteur (471) ; et
    la deuxième partie tournante (480) a un deuxième moteur (482) et est configurée pour faire tourner l'arbre d'entraînement d'outil de perçage (440a) autour du deuxième arbre de rotation (A2) en commandant l'entraînement du deuxième moteur (482).
  2. Appareil de traitement de verre de lunettes selon la revendication 1, dans lequel la première partie tournante (470) fait tourner le deuxième arbre de rotation (A2) conjointement avec l'arbre d'entraînement d'outil de perçage (440a).
  3. Appareil de traitement de verre de lunettes selon la revendication 1 ou 2, dans lequel le deuxième arbre de rotation (A2) est perpendiculaire au premier arbre de rotation (A1).
  4. Appareil de traitement de verre de lunettes selon l'une quelconque des revendications 1 à 3, dans lequel le moyen d'acquisition d'angle de rotation (50) obtient les premier et deuxième angles de rotation (α, β) qui rendent un axe de trou (PL) passant à travers le centre d'un trou dans le verre de lunettes et l'arbre d'entraînement d'outil de perçage (440a) parallèles entre eux.
  5. Appareil de traitement de verre de lunettes selon l'une quelconque des revendications 1 à 4, comprenant en outre :
    un premier arbre de rotation d'outil de traitement (430a) configuré pour faire tourner un premier outil de traitement (430) différent de l'outil de perçage (440) ;
    un moyen d'entraînement (421) configuré pour faire tourner un arbre d'entraînement (400a) dans des directions normale et inverse ;
    un mécanisme de transmission de rotation (432, 438, 441, 442, 435, 437) ayant un embrayage (490) et configuré pour transmettre la rotation de l'arbre d'entraînement (400a) au premier arbre de rotation d'outil de traitement (430a) lorsque l'arbre d'entraînement (400a) est mis en rotation dans l'une des directions normale et inverse et pour transmettre la rotation de l'arbre d'entraînement (400a) à au moins l'arbre d'entraînement d'outil de perçage (440a) lorsque l'arbre d'entraînement (400a) est mis en rotation dans l'autre direction ; et
    un moyen de commande d'entraînement (50) pour commander la direction de rotation du moyen d'entraînement pour passer de l'un du premier arbre de rotation d'outil de traitement (430a) et du deuxième arbre d'entraînement d'outil de perçage (440a) à l'autre du premier arbre de rotation d'outil de traitement (430a) et du deuxième arbre d'entraînement d'outil de perçage (440a).
  6. Procédé de traitement de verre de lunettes pour percer un verre de lunettes, comprenant :
    une étape d'acquisition de données de perçage consistant à obtenir des données de perçage concernant le verre de lunettes ;
    une étape d'acquisition d'angle de rotation consistant à obtenir un premier angle de rotation (α) d'un arbre d'entraînement d'outil de perçage (440a) pour entraîner un outil de perçage (440) pour percer le verre de lunettes autour d'un premier arbre de rotation (A1) et un deuxième angle de rotation (β) de l'arbre d'entraînement d'outil de perçage autour d'un deuxième arbre de rotation (A2) différent du premier arbre de rotation selon les données de perçage ; et
    une étape de commande consistant à commander l'entraînement de l'arbre d'entraînement d'outil de perçage pour le perçage selon au moins l'un quelconque des premier et deuxième angles de rotation (α, β),
    dans lequel l'étape de commande comporte le fait de commander l'entraînement de l'arbre d'entraînement d'outil de perçage (440a) en commandant l'entraînement d'une première partie tournante (470) selon le premier angle de rotation (α) obtenu dans l'étape d'acquisition d'angle de rotation et en commandant l'entraînement d'une deuxième partie tournante (480) selon le deuxième angle de rotation (β) obtenu dans l'étape d'acquisition d'angle de rotation,
    caractérisé en ce que l'étape de commande comporte en outre le fait de commander l'entraînement de la première partie tournante (470) selon le premier angle de rotation (α) obtenu dans l'étape d'acquisition d'angle de rotation et de commander l'entraînement de la deuxième partie tournante (480) selon le deuxième angle de rotation (β) obtenu dans l'étape d'acquisition d'angle de rotation, où la première partie tournante (470) fait tourner l'arbre d'entraînement d'outil de perçage (440a) autour du premier arbre de rotation (A1) en commandant l'entraînement d'un premier moteur (471) et la deuxième partie tournante (480) fait tourner l'arbre d'entraînement d'outil de perçage (440a) autour du deuxième arbre de rotation (A2) en commandant l'entraînement d'un deuxième moteur (482).
  7. Programme informatique comprenant des instructions pour amener un appareil de traitement de verre de lunettes selon l'une des revendications 1 à 5 à exécuter les étapes du procédé selon la revendication 6.
  8. Support lisible par ordinateur sur lequel est stocké le programme informatique de la revendication 7.
EP16163193.2A 2015-03-31 2016-03-31 Appareil et procédé de traitement de lentille de lunettes et appareil d'acquisition de données de commande de traitement de verres de lunettes Active EP3075508B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015070978A JP6596878B2 (ja) 2015-03-31 2015-03-31 眼鏡レンズ加工装置、及び眼鏡レンズ加工プログラム
JP2015070979A JP6503837B2 (ja) 2015-03-31 2015-03-31 眼鏡レンズ加工装置

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EP3075508A2 EP3075508A2 (fr) 2016-10-05
EP3075508A3 EP3075508A3 (fr) 2016-12-07
EP3075508B1 true EP3075508B1 (fr) 2019-07-31

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CN107234515A (zh) * 2017-06-06 2017-10-10 宁波法里奥光学科技发展有限公司 一种镜片磨边机及镜片切边方法
CN109434611B (zh) * 2018-12-26 2020-03-27 贰陆光学（苏州）有限公司 镜片倒角装置
CN112643345B (zh) * 2020-11-13 2021-10-29 浙江鸿业阀门制造有限公司 一种阀门加工用钻孔打磨一体机

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EP3075508A3 (fr) 2016-12-07
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CN106002535B (zh) 2020-05-22

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