JP4959242B2 - Eyeglass lens peripheral processing equipment - Google Patents

Description

  The present invention relates to an eyeglass lens processing apparatus for processing the periphery of an eyeglass lens.

In the conventional lens peripheral edge processing equipment, roughing, beveling, and other finishing processes were performed, but in recent years, multi-functionalization enables chamfering, mirror finishing, and grooving with a single device. (For example, refer to Patent Documents 1 and 2), and further, a device that enables drilling for a so-called two-point frame (refer to Patent Document 3), and partially cuts the outer peripheral corners of the lens front surface and the lens rear surface. There has been proposed an apparatus (see Patent Document 4) that enables even facet processing to form a polygonal surface like a jewel.
JP 2001-18155 A Japanese Patent Laid-Open No. 9-254000 JP 2003-145328 A JP 2002-126983 A

  As described above, the multi-functionalization of the processing apparatus has progressed, and various types of processing have become possible, but along with this, the processing time required to complete the processing has also become longer. Until normal finishing such as roughing and beveling, there was little difference in processing time until the end of processing, and the operator was able to grasp the approximate time empirically. However, an operator with little experience does not know the processing end time, and when the number of processing steps increases due to the increase in functionality, it is difficult for an expert to predict. In this case, since the operator frequently checks the progress of the processing from the start of the processing and waits for the end of the processing, the work efficiency is poor. In addition, even if the lens processing is completed, if the operator forgets to confirm, the lens is left as it is, and there is a problem that the use efficiency of the processing apparatus is poor.

  In view of the above-described problems of the prior art, an object of the present invention is to provide a spectacle lens peripheral edge processing apparatus that can know the time until the end of processing and can improve work efficiency.

  In order to solve the above problems, the present invention is characterized by having the following configuration.

A lens rotating means for rotating the lens rotation shaft which holds the spectacle lenses, a setting means for setting processing conditions of the processing mode or the like applied to the periphery of the target lens shape data, lens material and lens, bevel finishing processing, plane finishing Setting means capable of setting a machining mode including at least one of machining, chamfering, grooving, hole machining and facet machining, and a front and rear edge of the lens held on the lens rotation axis based on the lens shape data A lens edge position measuring means for measuring a position; a roughing tool; and a processing tool corresponding to a processing mode settable by the setting means; and the lens peripheral edge is roughened according to the processing conditions set by the setting means. by after roughing, the eyeglass lens processing apparatus for processing a peripheral edge of the lens by each processing tool which is set in the machining condition setting means Ri comprises a calculating means for calculating a machining end time required until machining end from the machining start based on the set processing conditions, and display means for displaying the computed machining end time, wherein the calculating means, the target lens shape A lens obtained by calculating the roughing processing time based on the data and the lens thickness obtained from the measurement result of the lens edge position measuring means, and obtaining the processing time of the bevel finishing or flat finishing from the measurement result of the lens edge position measuring means. Calculate based on the thickness, and when any of chamfering, grooving, hole processing and faceting is set, calculate the processing time of the processing step by a predetermined calculation based on the set processing conditions, A processing end time required until the end of processing is calculated .

  According to the present invention, it is possible to know the time until the end of processing, and it is possible to improve work efficiency.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic configuration diagram of a processing section of a spectacle lens peripheral edge processing apparatus according to the present invention.

  A carriage unit 100 is mounted on the base 170 of the processing apparatus main body 1, and the periphery of the lens LE to be processed sandwiched between the lens chuck shafts (lens rotation shafts) 102L and 102R of the carriage 101 is attached to the grindstone spindle 161a. The grindstone group 162 is pressed and processed. The grindstone group 162 includes a plastic rough grindstone 162a, a finishing grindstone 162b having a bevel forming groove and a flat processed surface, a mirror finish grindstone 162c, and a glass rough grindstone 162d. The grindstone spindle (grindstone rotation shaft) 161 a is rotated by a motor 160.

  A lens chuck shaft 102L is rotatably held on the left arm 101L of the carriage 101, and a lens chuck shaft 102R is rotatably held coaxially on the right arm 101R. The lens chuck shaft 102R is moved to the lens chuck shaft 102L side by the motor 110 attached to the right arm 101R, and the lens LE is held by the two lens chuck shafts 102R and 102L. Further, the two lens chuck shafts 102R and 102L are rotated synchronously by a motor 120 attached to the left arm 101L via a rotation transmission mechanism such as a gear.

  The carriage 101 is mounted on an X-axis movement support base 140 that is movable along shafts 103 and 104 extending in parallel with the lens chuck shafts 102R and 102L and the grindstone spindle 161a. A ball screw (not shown) extending in parallel with the shaft 103 is attached to the rear portion of the support base 140, and the ball screw is attached to the rotation shaft of the X-axis moving motor 145. As the motor 145 rotates, the carriage 101 together with the support base 140 is linearly moved in the X-axis direction.

  Further, shafts 156 and 157 extending in the Y-axis direction (direction in which the distance between the lens chuck shafts 102R and 102L and the grindstone spindle 161a is changed) are fixed to the support base 140. The carriage 101 is mounted on the support base 140 so as to be movable in the Y-axis direction along the shafts 156 and 157. 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 axis direction, and the carriage 101 is moved in the Y axis direction by the rotation of the ball screw 155.

  In FIG. 1, a chamfering mechanism 200 is disposed on the front side of the apparatus main body. A configuration of the chamfering mechanism 200 will be described with reference to FIG. A lens front surface chamfering grindstone 221a, a lens rear surface chamfering grindstone 221b, a lens front surface chamfering grindstone 223a, and a lens rear surface chamfering grindstone 223b are coaxially mounted on a grindstone spindle 230 rotatably attached to the arm 220. . The grindstone spindle 230 is rotated by a motor 221 via a rotation transmission mechanism such as a belt in the arm 220. The motor 221 is fixed to a fixed plate 202 extending from the support base block 201. Further, a motor 205 for rotating the arm is fixed to the fixed plate 202, and the grindstone spindle 230 is moved from the retracted position to the machining position shown in FIG. The processing position of the grindstone spindle 230 is a position that is parallel between the lens chuck shafts 102R and 102L and the grindstone spindle 161a on a plane on which both rotation axes are located. Similarly to the lens periphery processing by the grindstone group 162, the lens LE is moved in the Y-axis direction by the motor 150, and the lens LE is moved in the X-axis direction by the motor 145, so that the lens periphery can be chamfered. In the facet processing, chamfering grindstones 221a and 221b (further chamfering grindstones 223a and 223b at the time of mirror surface processing) are used as processing tools. An end mill can also be used as the facet processing tool.

  In FIG. 1, lens edge position measurement units (lens shape measurement units) 300 </ b> F and 300 </ b> R are provided above the carriage 101. FIG. 3 is a schematic configuration diagram of a measurement unit 300F that measures the lens edge position on the front surface of the lens. An attachment support base 301F is fixed to a support base block 300a fixed on the base 170 in FIG. 1, and a slider 303F is slidably attached on a rail 302F fixed to the attachment support base 301F. A slide base 310F is fixed to the slider 303F, and a probe arm 304F is fixed to the slide base 310F. An L-shaped hand 305 </ b> F is fixed to the tip of the probe arm 304 </ b> F, and a probe 306 </ b> F is fixed to the tip of the hand 305. The measuring element 306F is brought into contact with the front refractive surface of the lens LE.

  A rack 311F is fixed to the lower end portion of the slide base 310F. The rack 311F meshes with a pinion 312F of an encoder 313F fixed to the attachment support base 301F side. The rotation of the motor 316F is transmitted to the rack 311F via the gear 315F, the idle gear 314F, and the pinion 312F, and the slide base 310F is moved in the X-axis direction. During the measurement of the lens edge position, the motor 316F always presses the probe 306F against the lens LE with a constant force. The encoder 313F detects the movement position of the slide base 310F in the X-axis direction. The edge position (front refractive surface shape) of the front surface of the lens LE is measured based on the information on the movement position, the information on the rotation angles of the lens chuck shafts 102L and 102R, and the movement information in the Y-axis direction.

  The configuration of the measurement unit 300R that measures the edge position of the rear surface of the lens LE is symmetrical to the measurement unit 300F. Therefore, “F” at the end of the reference numerals attached to each component of the measurement unit 300F illustrated in FIG. The description is omitted by replacing it with “R”.

  The lens edge position measurement operation will be briefly described. The measuring element 306F is brought into contact with the front surface of the lens, and the measuring element 306R is brought into contact with the rear surface of the lens. In this state, the carriage 101 is moved in the Y-axis direction based on the target lens shape data, and the lens LE is rotated, whereby edge position data on the lens front surface and the lens rear surface are simultaneously measured. The lens edge position measurement is performed at the edge position after finishing and the edge position on the inner side or the outer side by a predetermined distance (for example, 1 mm). Thereby, the inclination angles near the edge position after finishing are obtained for the lens front surface and the lens rear surface, respectively.

  In FIG. 1, a hole processing / grooving mechanism 400 is arranged behind the carriage unit 100. FIG. 4 is a schematic configuration diagram of the mechanism unit 400. A fixing plate 401 serving as a base of the mechanism unit 400 is fixed to a block (not shown) standing on the base 170 of FIG. A rail 402 extending in the Z-axis direction (direction orthogonal to the XY-axis plane) is fixed to the fixed plate 401, and a Z-axis movement support base 404 is slidably attached along the rail 402. The moving support base 404 is moved in the Z-axis direction when the motor 405 rotates the ball screw 406. A rotating support base 410 is rotatably held on the moving support base 404. The rotation support base 410 is rotated around its axis by a motor 416 via a rotation transmission mechanism.

  A rotating portion 430 is attached to the distal end portion of the rotating support base 410. A rotating shaft 431 orthogonal to the axial direction of the rotating support base 410 is rotatably held by the rotating portion 430. An end mill 435 as a drilling tool is coaxially attached to one end of the rotating shaft 431, and a grooving cutter 436 as a grooving tool is coaxially attached to the other end of the rotating shaft 431. The rotating shaft 431 is rotated by a motor 440 attached to the moving support base 404 via a rotation transmission mechanism disposed inside the rotating unit 430 and the rotation support base 410.

  The configurations of the carriage unit 100, the lens edge position measuring units 300F and 300R, and the hole processing / grooving mechanism unit 400 can basically be those described in Japanese Patent Application Laid-Open No. 2003-145328, and details thereof are omitted. . Further, as the chamfering mechanism unit 200, one described in JP 2001-18155 A can be used.

  FIG. 5 is a control block diagram of the eyeglass lens peripheral edge processing apparatus. The control unit 50 includes a spectacle frame shape measuring unit 2 (the one described in JP-A-4-93164 can be used), a display 5 as a touch panel display means, a switch unit 7, a memory 51, a carriage unit 100, a chamfer. The mechanism unit 200, the lens edge position measuring units 300F and 300R, the hole processing / grooving mechanism unit 400, and the like are connected. An input signal to the device can be input by touching the display 5 with a touch pen (or a finger). The control unit 50 receives an input signal through a touch panel function of the display 5 and controls display of graphics and information on the display 5. The time display unit 550 of the display 5 displays the processing end time until the processing end calculated by the control unit 50. The control unit 50 is connected to a grinding water supply means 53 for supplying grinding water to the processing surface of the lens when processing the peripheral edge of the lens LE, and a speaker 54 as a sound generation means.

  The operation of the apparatus having the above configuration will be described. The processing end time from the processing start to the processing end varies depending on the processing step applied to the lens periphery. First, input of data and setting of processing conditions in this apparatus will be described.

  For the lens shape data (rn, θn) (n = 1, 2,..., N) of the spectacle frame (dummy lens, template) measured by the spectacle frame shape measuring unit 2, the switch of the switch unit 7 is pressed. Is stored in the memory 51. rn is the radial length data, and θn is the radial angle data. A lens shape graphic FT is displayed on the screen 500 of the display 5, and it becomes possible to input layout data such as the distance between the pupils (PD value) of the wearer and the height of the optical center with respect to the geometric center of the lens shape (FIG. 5). reference). The target lens shape for lens periphery processing can be called from the one stored in the memory 51 and used. As shown in FIG. 5, the layout data can be input by operating predetermined button keys 501, 502, 503 and the like displayed on the display 5.

  Further, the processing conditions can be set by operating the button keys 510, 511, 512, 513, 514, 515. The button key 510 can be used to select plastic, glass, or polycarbonate as the lens material. When the metal or cell is selected as the type of the spectacle frame by the button key 511, the automatic beveling processing mode and the forced beveling processing mode can be selected as the processing mode by the button key 512. When nyroll is selected by the button key 511, a flat machining mode is set as a machining mode by the button key 512, and an automatic groove machining mode and a forced groove machining mode can be selected.

  When the groove processing mode is selected, the groove width can be set by the button key 523 and the groove depth can be set by the button key 524 on the simulation screen of FIG. This simulation screen is displayed after the lens edge position measurement, and the groove curve and the groove position with respect to the lens front surface can be changed with the button keys 521 and 522. On the simulation screen, an edge cross-sectional figure 527 at the edge position designated by the cursor 526 is displayed beside the target figure FT. Even when the forced beveling mode is selected, a beveling simulation screen is displayed after the lens edge position measurement, and the bevel curve and bevel position can be changed.

  When the two-point is selected by the button key 511 on the input screen of FIG. 5, the flat machining mode and the hole machining mode are set as the machining mode. In the drilling mode, data related to drilling can be input by selecting a hole editing screen from a menu displayed by pressing the button key 512. FIG. 7 is an example of a hole editing screen. For example, when a two-hole type icon is selected with a touch pen from the hole processing type icon 530 and dragged to a desired position on the target figure FT displayed on the screen, holes H01 and H02 arranged in the horizontal direction are displayed. Set at once. The two holes H03 and H04 on the nose side can be set similarly. When fine-tuning the hole position, specify the hole number or group with the button key 531, and then change the values in the x-axis data column 532a and the y-axis data column 532b to change the position relative to the target lens center FC. it can. The hole diameter can be input in the input field 533 and the hole depth data can be input in the input field 534. The hole data of the lens for the left eye can be set similarly.

  In the input screen shown in FIG. In the case of chamfering, it is possible to further set the size of the chamfering and whether to chamfer the front side or the rear side of the lens. The size of the chamfer can be selected from preset large, medium and small, and the chamfer width can also be directly input as a numerical value.

  In the input screen of FIG. 5, the button key 514 can be used to select the presence or absence of mirror finishing, which is a more precise finishing after finishing. When mirror processing is selected and the chamfering mode is selected with the button key 513, mirror processing is set also in chamfering.

  When the facet processing is selected by the button key 515 on the input screen of FIG. 5, a screen for further setting a facet processing region is displayed. FIG. 8 shows an example of the screen. This setting screen is also displayed after the lens edge position measurement, and also serves as a simulation screen for resetting the facet processing region. With respect to the faceted surface, the front surface of the lens and the rear surface of the lens can be selected with the button key 602. FIG. 8 shows an example of selecting the front surface of the lens.

  In the center of the screen of the display 5, a target lens shape figure FT based on target lens data is displayed. In FIG. 8, the horizontal direction is the x-axis and the vertical direction is the y-axis with reference to the geometric center FC of the target lens shape figure FT. On the left side of the lens-shaped front figure FT, a side figure ET when the edge of the lens is viewed from the left side is displayed side by side. The outline of the side figure ET is initially calculated and displayed based on the default edge thickness and target lens data. After the measurement data of the lens front surface and the edge position by the lens edge position measurement is obtained, the measurement data and the target lens data are used for calculation and display. By the operation of the touch pen or the like, the target lens shape figure FT is rotated with respect to the center FC, and the side figure ET is displayed as a side figure when viewed from various directions.

  The setting of the facet processing area will be described. The facet processing region is basically set by designating a start point and an end point with a touch pen on the target lens shape figure FT. Here, a case where the facet processing style is selected from three patterns (A, B, C) registered in advance will be described. The facet style can be selected by a button key 604 on the screen of FIG. FIG. 8 shows an example in which four facet regions (cut surfaces) are set on the lens front side. The area FA on the target lens shape front figure FT is an area set by the style A. In the style A, when the maximum machining width W1max of the intermediate point M1 located between the start point S1 and the end point F1 is set, the machining width gradually increases from the start point S1 to the intermediate point M1, and gradually from the intermediate point M1 to the end point F1. The facet line FLfa1 is set so that the machining width decreases.

  The region FB is a region set by selecting the style B. When the start point S2 and the end point F2 are specified, in the style B, the machining width W is gradually increased from the point S2, and after reaching the intermediate point M2 where the maximum machining width W2max appears, the maximum along the edge of the target lens shape is reached. The facet line FLfa2 is set up to the end point F2 while maintaining the machining width W2max. After the end point F2, a facet line is set by extending the tangent of the facet line FLfa2 to the edge position F2e as it is.

  The area FC is an area set by selecting the style C. When the start point S3 and the end point F3 are designated, a facet line FLfa3 that is constant at the maximum processing width W3max is set along the edge of the target lens shape from the point S3 to the point F3. A facet line obtained by extending the tangent line of the facet line FLfa3 as it is to the edge position S3e is set in the portion outside the start point S3, and a facet line obtained by extending the tangent line of the facet line FLfa3 as it is to the edge position F3e is also set outside the point F3. Is set. In Style C, facet processing of “uncut” can be performed with a simple setting, in which both sides and subsequent parts are cut linearly to the edge position.

  In the facet line FLf as described above, the maximum processing width (facet width) W set on the target lens shape front figure FT is input using the numeric keypad displayed by touching the input field 610 shown in FIG. A numeric value can be entered in. Further, instead of inputting the maximum machining width W, the machining width W can also be set by inputting the ratio tr of the chamfering amount (the machining width on the side surface side of the edge) T with respect to the edge thickness. The chamfering ratio can be input by a numeric key displayed by touching the input field 611.

  When the facet line FLf on the front side of the lens is set on the lens shape front figure FT, the facet line ELf viewed from the edge side face is set on the edge side figure ET. The facet line ELf is calculated from the processing width W of the lens front surface and the inclination angle of the processing surface of the lens front surface chamfering grindstone 221a. The facet processing area can also be set on the lens rear surface side in the same manner by designating the lens rear surface by pressing the button key 602.

The calculation of facet line ELf, which is the facet processing trajectory on the side face of the edge when facet line FLf is set on target lens front view FT, will be described with reference to FIG. Here, a case where a facet processing region is set on the lens front side will be described. In FIG. 9, the processing width (distance from the edge position Q1 on the front surface of the lens to the facet processing point Q2 on the front surface of the lens) set on the lens front view FT is W, and the facet processing on the side surface from the edge position Q1 on the front surface of the lens. The chamfering amount up to the point Q3 is CT, the inclination angle of the lens front surface at the edge position Q1 is α, and the inclination angle of the processing surface of the lens front surface chamfering grindstone 221a is β. The tilt angle of the front surface of the lens is obtained by measuring the edge position twice on the inside or outside of the edge position after finishing and a predetermined distance (for example, 1 mm), and is regarded as an approximate straight line. However, there are few practical problems in the design facet processing. When the machining width W is set, the chamfering amount CT is
CT = W × (tan β−tan α)
As required. Then, the position data of the facet processing point Q3 with respect to the edge position Q1 on the front surface of the lens is obtained by the chamfering amount CT. The inclination angle β of the processed surface of the lens front surface chamfering grindstone 221a is stored in the memory 51 in advance.

  By performing the above calculation for each minute radial angle within the facet processing region, facet processing trajectories (rn, θn, zn) (n = 1, 2,..., N) on the edge side surface are obtained. As a result, the facet line ELf is displayed on the side surface graphic ET of the screen of the display 5. The finished shape from the front and side direction after facet processing can be confirmed by the facet line FLf on the front face figure FT and the facet line ELf on the side figure ET, and the remaining thickness of the edge after facet processing, from the side You can know the amount of facet processing you saw. Thereby, it is possible to determine whether or not the setting for facet processing is appropriate.

  The facet processing region as described above can be set at a plurality of locations. When the facet processing area is set at a plurality of locations, facet lines FLf and ELf that are currently being edited are displayed in red, and the other edited lines are displayed in blue. It is possible to set a facet processing area on the rear surface side of the lens by pressing the button key 602. The facet line FLr on the opposite surface is displayed with a dotted line, and the front facet processing region and the facet processing region on the rear surface side can be visually distinguished. By combining facet styles, you can freely design facet processing areas.

  Next, calculation of the time predicted for each machining process will be described. First, the case where the lens material is plastic will be described. The machining end time T required to complete the machining is basically obtained by adding the time of each machining process.

  <Lens Edge Position Measuring Step> When the start switch is pressed after the lens is chucked on the lens chuck shafts 102L and 102R, the edge positions of the lens front surface and the lens rear surface are determined based on the lens shape data by the lens edge position measuring units 300F and 300R. Is measured. Since the measurement process time taken from the start of the measurement operation to the end of the measurement operation of the lens edge position measurement units 300F and 300R is 15 seconds on average, the measurement process time Tm is set to 15 seconds in the calculation of the processing end time T. When a mode in which lens peripheral edge processing is executed subsequent to edge position measurement (a mode in which processing is not temporarily interrupted) is set, such as an auto-jamming mode or an automatic grooving mode, this measurement process time Tm (15 seconds) is added to obtain the machining end time T.

  <Coarse processing step> Although the direct rough processing of the lens LE by the rough grindstone 162a varies somewhat depending on the diameter of the unprocessed lens, the lens shape size, and the lens thickness, the lens LE is processed in 5 to 7 rotations. If it takes about 7 to 8 seconds per rotation, the rough machining time is about 30 to 60 seconds, and almost everything is processed. When the diameter of a standard raw lens of a plastic lens is 75 mm and a standard target lens shape (45 mm in diameter) is processed, the direct rough processing time by the rough grindstone 162a is about 45 seconds on average. For this reason, when the lens thickness is not known, the rough processing time is set to 45 seconds.

  In addition, when the rough edge process is started after the lens edge position measurement, the grinding wheel rotating motor 160 is first rotated at a high speed to stabilize the motor rotation and no processing load is applied to the motor 160 as a preparation for processing. The motor current at is checked. It takes about 5 seconds to prepare for the processing. Then, after processing preparation, the lens LE is slowly lowered toward the roughing grindstone 162a, and it takes about 4 seconds until the rotation of the lens LE starts. It is assumed that it takes 1 second until the lens LE is returned to the predetermined retracted position after the processing is completed. Accordingly, these times 10 seconds are added to the direct roughing time, and the roughing process time Tr is calculated as 55 seconds.

  Since the target lens size can be determined by inputting target lens data, if the target lens size increases by 15 mm or more with respect to the target lens size of 45 mm in diameter, the above Tr = 55 seconds minus 7 seconds, and if 15 mm smaller, 7 seconds. You may calculate with plus. Furthermore, when the time T is displayed after measuring the lens edge position, the lens thickness of the lens having a refractive power of −4D is used as a reference, and when the lens thickness is larger by a certain amount (for example, 3 mm), the processing time is 7 seconds. If the lens thickness is small by a certain amount, the processing time may be subtracted by 7 seconds.

  <Finishing Process> Finishing with the finishing grindstone 162b includes a bevel finishing process and a flat finishing process, both of which are almost the same time, so the finishing process time Tfi is calculated without distinction. In the finishing process, a finishing allowance of about 1.5 mm left after roughing is processed. At this time, finishing is performed on average at 4 rotations (incision processing 2 rotations, idle rotation 2 rotations for the remaining machining). If the machining time is 7 seconds on average per revolution, it will be 28 seconds for 4 revolutions. If the movement of the carriage 101 at the start and end of processing takes 2 seconds, the finishing process time Tfi is set to 30 seconds. If the lens thickness is 3 mm thicker than the standard, the cutting process may take one extra turn. In this case, the calculation may be performed by adding 7 seconds.

  <Mirror Finishing Process> In the mirror finishing process, the lens periphery after finishing by the finishing grindstone 162b is mirror-finished by the mirror finishing grindstone 162c. Also in the mirror finishing by the mirror finishing grindstone 162c, there are bevel finishing and flat finishing, both of which are almost the same time, so the mirror finishing machining process time Tpo is calculated without distinction. In this mirror surface processing, the lens is rotated three times (one rotation for the mirror surface processing, and two idling rotations for glazing). If the average is 15 seconds per lens rotation, the processing time is 45 seconds. If the moving time of the carriage 101 before and after the processing is 2 seconds, the mirror finishing processing time Tpo is 47 seconds.

  <Chamfering Step> In the chamfering process, the corner of the front surface of the lens after finishing is processed by the chamfering grindstone 221a, and the corner of the rear surface of the lens is processed by the chamfering grindstone 221b. The chamfering process time Tc is the sum of the processing preparation time Tct, the chamfering processing time Tcf on the front surface of the lens, and the chamfering processing time Tcr on the rear surface of the lens. The machining preparation time Tct is assumed to take 5 seconds for the movement time of the grindstone spindle 230 to the machining position at the start of machining and the movement time to the retracted position at the end of machining. The chamfering processing times Tcf and Tcr are calculated by setting each chamfering amount (chamfering width) D as shown in FIG. In the chamfering process according to the present embodiment, the lens is rotated once for a 0.2 mm incision in the chamfering process, and thereafter, the idle rotation is rotated twice for processing the uncut part. The chamfering time is calculated assuming that it takes about 7 seconds per rotation. The chamfering width D of the rear surface of the lens can be selected from 0.3 mm (small chamfering), 0.4 mm (during chamfering), and 0.5 mm (large chamfering). The chamfering width D on the front surface of the lens is set to 0.3 mm as a standard. These can be set by inputting numerical values individually.

  When calculating the chamfering processing time Tcr at the stage before the lens edge position measurement, the value of the chamfering width D is simply calculated as the cutting amount. For example, when a chamfering width of 0.5 mm (large chamfering) is selected on the rear surface of the lens, the rotation of the cutting process is 3 rotations and the idle rotation is 2 rotations, and the chamfering processing time Tcr of the rear surface of the lens is 7 seconds × 5 rotations. = 35 seconds plus 2 seconds for the movement time of the carriage 101 before and after processing is obtained as 37 seconds. When the chamfering width of the front surface of the lens is set to 0.3 mm, the rotation of the cutting process is 2 rotations and the idle rotation is 2 rotations, and the chamfering processing time Tcf of the front surface of the lens is 7 seconds × 4 rotations = 28 seconds. The moving time of the carriage 101 before and after processing is added to 2 seconds, and is obtained as 30 seconds. Then, the processing time Tc required for chamfering both surfaces is obtained as 72 seconds by Tct + Tcf + Tcr.

  If the cut amount relative to the edge position is known by measuring the lens edge position, the cut amount CT from the edge position Q1 is obtained in order to secure the set chamfering width D by the same method as the facet processing described in FIG. The chamfering time can be calculated.

  <Mirror chamfering process> In the mirror chamfering process, the processed surface after the chamfering is further processed by the mirror chamfering grindstones 223a and 223b. Unlike the above-described chamfering, the mirror chamfering process has three rotations of the lens on both the front surface and the rear surface of the lens regardless of the amount of chamfering (one rotation for the mirror surface processing, one rotation for glossing 2) Times). If both the lens front surface and the lens rear surface have an average of 15 seconds per lens rotation, the respective processing times are 45 seconds. If it takes 2 seconds to move the carriage 101 before and after the processing on one side, the mirror chamfering processing time on one side is 47 seconds. The mirror finishing process time Tcp for both the lens front surface and the lens rear surface is 94 seconds.

  <Grooving Process> In the grooving process, the lens periphery that has been subjected to flat finishing is performed by a grooving cutter 436. The grooving processing time Tg is calculated as the sum of the processing preparation time Tgt and the actual processing time Tgp. The processing preparation time Tgt is the sum of the movement time to the standby position (5 seconds) when the lens LE is processed by the movement of the carriage 101, the movement time to the processing position of the rotating unit 430 and the retreat time (5 seconds). 10 seconds. The processing time Tgp is calculated by setting the groove width and the groove depth. In the grooving process, the lens LE is rotated once for a cutting depth of 0.2 mm, which is the groove depth, and it is calculated that it takes 15 seconds per rotation. When the automatic grooving mode is set, the groove width is set to the same width of 0.6 mm as the cutter 436, and the groove depth is set to 0.6 mm. In this case, since the lens is rotated three times, the grooving time Tgp is obtained as 45 seconds. The grooving process time Tg is set to Tgt + Tgp = 55 seconds.

  In the forced grooving mode, the groove depth and width can be changed with respect to the setting of the automatic grooving mode. For example, when the groove depth is set to 0.8 mm and the groove width is set to 0.8 mm larger than 0.6 mm, the groove surface on the lens front side is secured as shown in FIG. The cutter 436 having a width of 0.6 mm is processed to the groove depth specified based on the groove digging trajectory. Next, as shown in FIG. 11B, the groove depth specified on the basis of the groove digging locus moved to the lens rear surface side by 0.2 mm is processed so as to ensure the groove surface on the lens rear surface side. Thereafter, the groove bottom portion remaining in the center is processed with a feed of 0.1 mm. In this case, the lens is rotated four times when the groove surface on the front side of the lens is processed, the lens is rotated four times when the groove surface on the rear surface side of the lens is processed, and the lens is rotated once when the central groove bottom portion is processed. The central groove bottom is processed in 10 seconds per lens rotation. Accordingly, the grooving time Tgp in this case is calculated as 130 seconds, and the total time Tg of the grooving process is 140 seconds.

  <Hole Machining Process> The hole machining process time Th is calculated as the sum of the machining preparation time Tht and the hole machining time Thp. The processing preparation time Tht is set to 10 seconds as in the grooving processing. The hole processing time Thp is calculated based on hole depth data (in the case of a through hole, the lens thickness of the hole processed portion), the hole diameter, and the number of holes. The diameter of the end mill 435 of the present apparatus is 0.8 mm, and when this hole diameter is reached, the lens LE or the end mill 435 is moved and processed as it is. In the processing by the end mill 435, the end mill 435 is taken in and out every 0.2 mm incision in the hole depth direction in order to remove the processing waste from the hole. Since about 15 seconds are required when processing a depth of 2 mm, one hole processing time is calculated according to the hole depth based on this time. When the hole depth is 4 mm, the processing time for one hole is 30 seconds.

  When the setting of the hole diameter is larger than 0.8 mm, first, after drilling in the hole depth direction at the center of the set hole diameter, the axial center of the end mill 435 is 0.2 mm at the maximum with respect to the hole center. The lens LE is decentered at the pitch, and in this state, the lens LE is moved and processed so that the hole diameter is secured on the side surface of the end mill 435. That is, one hole machining time is calculated by adding 5 seconds every time the hole diameter is increased to 0.4 mm with respect to the hole diameter of 0.8 mm. As shown in FIG. 7, when a plurality of holes are machined, the hole machining time Thp is calculated as the sum of the machining times for each hole.

  When processing through holes, since there is no lens thickness data (lens edge position measurement data) at each hole position at the initial processing condition setting stage, it is assumed that the lens thickness is an average of 2 mm, and the hole processing time Thp Is calculated.

  <Facet processing step> The facet processing step time Tfa is obtained as the sum of the processing preparation time Tfat and the processing time Tfap by the grindstone. It is assumed that the processing preparation time Tfat takes 5 seconds, similar to the processing preparation time Tct in the chamfering process. The machining time Tfap is calculated based on the set number of facet machining areas and the machining width W (or chamfering amount CT) in each machining area. Here, assuming that the cutting amount is the chamfering amount CT, the facet processing is performed by rotating the lens by upcut rotation for each facet region by the cutting amount of 0.2 mm, and then the lens is reversely rotated. . For the final cut amount of 0.2 mm, the lens is rotated so as to process the facet region of the entire circumference of one side by up-cutting. If it takes 5 seconds to process a cutting depth of 0.2 mm in one facet processing area and the chamfering amount CT accompanied by reverse rotation is 1 mm, it takes a processing time of 25 seconds in one facet processing area. Then, if eight identical facet areas are set on the front surface of the lens, and it takes 10 seconds to make a final rotation of 0.2 mm, the entire facet processing on the front surface of the lens takes 210 seconds (3 minutes). 30 seconds). Assuming that eight facet processing areas are set on the rear surface of the lens as well as the front surface of the lens, the facet processing time Tfap on both surfaces is calculated as 7 minutes. Then, the facet machining process time Tfa is calculated as 7 minutes and 5 seconds obtained by adding the machining preparation time Tfat to Tfap.

  In the setting of facet machining, a mirror machining process with mirror chamfering grindstones 223a and 223b is usually set in order to improve the appearance. In this case, the same time 47 seconds (time per one side) as the mirror chamfering process is added. The processing time Tpfa when the mirror surface processing is performed on the front surface of the lens and the rear surface of the lens is 94 seconds.

  <Lens cleaning process> In the grooving process by the grooving cutter 436 and the hole process by the end mill 435, the processing is performed without supplying the grinding water. In addition, lens cleaning is performed. There is a nozzle for injecting grinding water in the vicinity of the grindstone group 162, and the lens is moved to a position to inject the grinding water. The lens cleaning is completed when the lens is rotated once while the grinding water is supplied. If the cleaning time is 10 seconds and the movement time of the lens to the position where the grinding water is sprayed and the movement time after the cleaning is completed is 5 seconds, the time Tw required for the lens cleaning process is 15 seconds.

  When there is a chamfering process or a facet process after the grooving process and the hole process, the grinding water is used during the process, so this lens cleaning process is omitted. Since lens cleaning may be performed by another dedicated cleaning device after the lens is removed, it is possible to select whether or not to perform the lens cleaning on the apparatus side when setting the processing conditions.

  The case where the lens material is glass will be described. In this case, the roughing grindstone 162d for glass is used for roughing and the finishing grindstone 162b is used for finishing, but the roughing process time Tr and the finishing process time Tfi are performed in substantially the same time as in the case of plastic. Is called. In the case of a glass lens, mirror surface processing, grooving processing, hole processing, and facet processing cannot be performed.

  In the case where the lens material is polycarbonate (hereinafter abbreviated as “polycarbonate”), processing steps different from those of the plastic lens and calculation of the time will be mainly described.

  <Coarse processing step> Unlike the plastic lens, in the rough processing of the thermoplastic polycarbonate lens, the grinding water is not supplied from the grinding water supply means 53 during the processing, and the dry processing is performed. The processing time is the same as for plastic.

  <Finishing Step> In the finishing process of the polycarbonate lens by the finishing grindstone 162b, the processing step varies depending on whether or not the mirror surface finishing is performed by the grindstone 162c. When there is no mirror finishing, the lens is rotated twice on average as dry processing for processing the finishing allowance without supplying grinding water, and the lens is rotated three times as wet processing for polishing by supplying grinding water. If it is 7 seconds per lens rotation, the total time is 5 rotations, so the processing time is 35 seconds. In addition to this, the movement time of the carriage 101 at the start and end of processing is 2 seconds, and the finishing process time Tfi is 37 seconds.

  On the other hand, when the mirror finishing is set, the finishing by the finishing grindstone 162b is completed after the lens is rotated twice as dry processing without supplying grinding water. In this case, the moving time of the carriage 101 is added to the dry processing time of 14 seconds, and the finishing process time Tfi is set to 16 seconds.

  As in the case of the plastic lens, since the lens thickness is known after the lens edge position measurement, the processing time is added by the lens thickness.

  <Mirror Finishing Process> When mirror finishing is set by the grindstone 162c, the lens is rotated once by the grindstone 162c as dry processing with respect to the lens after finishing that has been completed only by the previous dry processing. Next, the lens is rotated three times as a wet process using the grinding water supply means 53. In mirror finishing, if the average is 15 seconds per lens rotation, the processing time for 4 lens rotations is 60 seconds. If the moving time of the carriage 101 before and after the processing is 2 seconds, the mirror finish processing time Tpo is 62 seconds.

  <Chamfering process> The chamfering process of the polycarbonate lens by the chamfering grindstones 221a and 221b differs in the processing process depending on the presence or absence of the subsequent mirror chamfering process, as in the finishing process. When there is no mirror chamfering, the cutting process of the lens front surface and the lens rear surface is performed by dry processing in accordance with the setting of the chamfer width as in the case of the plastic lens. Thereafter, the lens is rotated three times on the front and rear surfaces of the lens as wet processing by supplying grinding water. Both dry processing and wet processing are processed in an average of 7 seconds per rotation, as with plastic. Therefore, the lens front surface and the lens rear surface are rotated one extra turn with respect to the plastic lens having the same chamfer width setting. As in the case of the plastic lens described above, when the chamfering width of the rear surface of the lens is set to 0.5 mm (large chamfering) and the chamfering width of the front surface of the lens is set to 0.3 mm, the chamfering processing time Tcr of the rear surface of the lens and The chamfering processing time Tcf on the front surface of the lens is calculated on the assumption that it takes an extra 7 seconds each compared with the plastic lens. That is, the processing time Tc required for chamfering both surfaces is calculated as an extra 14 seconds compared to the plastic lens. It is assumed that the lens moving time can be ignored.

  When the mirror chamfering process is set, the cutting process by the chamfering grindstones 221a and 221b is performed by the dry process according to the setting of the chamfering width, and is finished. That is, the processing time is only the lens rotation for the cut. When the chamfering width of the rear surface of the lens is set to 0.5 mm and the chamfering width of the front surface of the lens is set to 0.3 mm, Tcr and Tcf are added to the carriage 101 before and after the processing by adding a movement time of 2 seconds, respectively 23 seconds and 16 seconds. The chamfering process time Tc is set to 42 seconds by adding a moving time 3 seconds to the processing position at the start of processing of the grindstone spindle 230 as the processing preparation time Tct.

  <Mirror chamfering process> In the mirror chamfering process of a polycarbonate lens, the lens is rotated once as a dry process by the mirror chamfering grindstones 223a and 223b on the lens front surface and the lens rear surface that have been completed up to the dry processing, and then wet processing The lens is rotated three times. That is, the processing time Tcp is calculated as 47 seconds + 15 seconds, assuming that the lens is rotated one extra turn with respect to the mirror chamfering of the plastic lens. When chamfering of the rear surface of the lens and the front surface of the lens is set, Tcp is set to 124 seconds.

  In addition, in the machining time of each machining process described above, since the movement time before and after the direct machining by a grinding tool such as a grindstone is about 2 seconds, it is an error range in the calculation of each machining process time and is ignored. You may do it.

  Next, an example of calculating the machining end time T predicted by setting the machining time and machining conditions for each machining process as described above and the display operation thereof will be described (see the flowchart of FIG. 13).

  <Example 1> A case will be described in which plastic is set as the lens material, and processing conditions of auto-sag processing, mirror processing, and chamfering processing are set as the processing mode. In the chamfering, the rear surface of the lens is set to be large (0.5 mm), and the chamfering width of the front surface of the lens is set to 0.3 mm. After the processing conditions are set (S-1), when the processing start switch of the switch unit 7 is pressed (S-2), in auto-jaw processing, the processing is not temporarily stopped after the lens edge position measurement (S-3), Following the lens edge position measurement, lens processing is executed.

  In this case, the machining end time T is displayed by pressing the first start switch (S-4). The time for each machining step is as follows: lens edge position measurement process time Tm = 15 seconds, rough machining process time Tr = 55 seconds, finishing machining process time Tfi = 30 seconds, mirror finishing machining time Tpo = 47 seconds, chamfering machining time Tc = 72 seconds and mirror chamfering processing time Tcp = 94 seconds. The machining end time T is calculated as 5 minutes 13 seconds of the total of each machining process, and is displayed on the time display unit 550 (S-4). An operator can use this as a standard for engaging in other work by knowing the estimated time until the end of the machining. Since the processing end time T may be an approximate guide, it may be displayed rounded in units of 15 seconds.

  Here, when the lens edge position is measured (S-5), the lens thickness with respect to the target lens shape is obtained. When the measured lens thickness varies from a standard one used as a basis for calculation of roughing time Tr, finishing time Tfi, etc., the calculation time of the subsequent machining process is corrected accordingly (S-6). ).

  The time displayed on the time display unit 550 is counted down with the progress of processing (S-11). For example, it is counted down every 5 seconds. At that time, every time the machining process is completed, the remaining machining process time is corrected (S-14). Thereby, the worker can know the remaining time on the way, and can refer to whether or not to engage in other work.

  As a method of notifying the remaining machining time until the machining is completed, the total machining end time from the machining start to the machining end is set to 100 instead of displaying the time numerically (or in addition to the time numerical display). %, And the progress rate (%) may be displayed on the display unit 550 as a numerical value and / or graphic according to the processing progress. If displayed graphically, it is easy to understand visually. Also in this case, the display state is corrected based on the remaining machining time calculated by setting the machining conditions at the end of each machining step depending on the progress of the machining.

  For example, in Example 1 described above, the total time is 313 seconds, and the time to finish the finishing process is 100 seconds. If the finishing process is completed as expected, the progress rate is about 32%, and the remaining processing time ratio is 68%. Here, even if it takes longer than expected to finish the finishing process, the graphic of the progress rate remains 32% (68% remaining) until the finishing process is completed based on the remaining machining time. Alternatively, the time actually taken until the end of finishing machining and the remaining machining time are added, and the progress ratio is corrected and calculated again based on this. Such a display also allows the operator to know the approximate time until the end of processing.

  When all the machining steps are completed, a message indicating the completion of machining is displayed on the display 5, and a sound for notifying the completion of machining is generated by the speaker 54 (S-15).

  <Example 2> A case where plastic is set as the lens material and processing conditions of forced grooving processing, mirror processing, and chamfering processing are set as processing modes will be described. Except for grooving, the setting is the same as in Example 1 above. The forced grooving mode is a mode in which a grooving simulation screen is displayed after the lens edge position measurement and the processing is temporarily stopped. When the processing start switch of the switch unit 7 is pressed after setting the processing conditions (S-2), lens edge position measurement is executed (S-7).

  Thereafter, the screen is switched to the grooving simulation screen shown in FIG. 6, and the operation of the apparatus is temporarily stopped (S-8). On the grooving simulation screen, the grooving curve and position can be changed. Further, the groove width and groove depth can be changed. Here, it is assumed that the groove depth is set to 0.8 mm and the groove width is set to 0.8 mm. The diameter of the raw lens, the lens thickness and the target lens size shall be standard.

  After setting the necessary conditions on the simulation screen, when the machining start switch of the switch unit 7 is pressed (S-9), the control unit 50 calculates the time T until machining is completed and displays it on the display unit 550 (S -10). The time of each machining step in this setting is the same as in the previous example, rough machining time Tr = 55 seconds, flat machining finishing time Tfi = 30 seconds, mirror finishing time Tpo = 47 seconds, and chamfering machining time Tc = 72. Second, mirror chamfering processing time Tcp = 94 seconds. Grooving is performed according to the procedure described with reference to FIG. 11, and the machining time Tg is calculated as 140 seconds. The processing end time T is 438 seconds obtained by adding them. Since the display time may be an approximate guideline, it is rounded in units of 15 seconds and becomes 7 minutes 15 seconds.

  <Example 3> When plastic is set as the lens material, rimless (two-point) is selected as the spectacle frame type, and flat finish machining, hole machining mode, mirror surface machining, and chamfering machining conditions are set as the machining mode Will be explained. Except for flat finishing and hole machining, the same settings as in Example 1 are used. When the processing start switch of the switch unit 7 is pushed after setting the processing conditions (S-2), the processing end time T is displayed on the display unit 550 (S-4), and the lens edge position measurement (S-5) is followed by the lens. Processing is performed.

  The processing time in the hole processing is calculated based on the hole setting data. For example, as shown in FIG. 7, it is assumed that four holes are set, the diameter of each hole is set to 1.0 mm, and the hole depth is set to penetrate. Before the lens edge position measurement, since the lens thickness for hole processing is unknown, it is assumed that an average of 15 seconds is required for processing a 0.8 mm through hole. And since the diameter of the hole is set to 1.0 mm, 5 seconds is added to the process of expanding the diameter of the through hole. The processing time for one hole is 20 seconds. Since the number of holes is four, the hole processing time Thp is set to 80 seconds, 10 seconds of the processing preparation time Tht is added to this, and the hole processing time Th is set to 90 seconds.

  Here, the lens edge position measurement when the hole processing is set is performed in order to obtain the edge position of the lens front surface corresponding to the hole position and the inclination angle of the lens front surface at the hole position in addition to the measurement for the lens peripheral edge processing. , Measured at two locations slightly outside the hole position. When a plurality of holes are set, the number of measurements are performed. If the measurement time for one hole is 3 seconds, the measurement of four holes takes 12 seconds, and the measurement process time for lens peripheral machining is added to 15 seconds, and the measurement process time Tm is calculated as 27 seconds. Is done.

  The time of each processing step is Tm = 27 seconds, Tr = 55 seconds, Tfi = 30 seconds, Tpo = 47 seconds, Th = 90 seconds, Tc = 72 seconds, Tcp = 94 seconds in the order of the processing steps. When these are totaled, the machining end time T is 388 seconds. The display unit 550 displays the rounded time 6 minutes 30 seconds.

  By measuring the lens edge position, the lens thickness for the target lens shape is obtained, and the lens thickness at each hole position is obtained. As a result, the processing end time T after the lens edge position measurement is corrected (S-6). For example, if the lens thickness at each hole position is 4 mm, which is thicker than 2 mm, which is the standard, it takes 15 seconds for one through hole and the number of holes is four, so the hole processing time Th is 60 seconds plus Is done. Further, when the lens thickness with respect to the target lens is thicker than the standard, the roughing process time Tr is increased by 7 seconds, and the finishing time Tfi is also increased by 7 seconds. Therefore, the remaining processing end time T after the lens edge position measurement is corrected from 333 seconds to 407 seconds. The display time at that time is a time rounded to 6 minutes 45 seconds. The time displayed on the time display unit 550 is counted down with the progress of the machining process, and is corrected to the remaining machining process time each time the machining process is completed.

  <Example 4> The case where chamfering is not set for the processing conditions of Example 3 will be described. In this case, the chamfering Tc = 72 seconds and Tcp = 94 seconds are omitted, the lens cleaning process time Tw = 15 seconds is added instead, and the processing end time T is 237 seconds.

  <Example 5> The case where facet machining is set instead of chamfering with respect to the setting of the machining conditions in Example 3 will be described. In this case, the processing is temporarily stopped after the lens edge position measurement. When the processing start switch of the switch unit 7 is pressed after the processing conditions are set, the lens edge position measurement is executed, the screen is switched to the facet processing region setting simulation screen of FIG. 8, and the operation of the apparatus is temporarily stopped. The lens edge position measurement result is reflected in the side graphic ET of FIG. By looking at the relationship between the contour of the side graphic ET and the facet line ELf set on the edge side, and by specifying the observation direction of the side graphic ET with a touch pen or the like, the facet processing area and the processing width can be set. Appropriateness can be determined. On this simulation screen, the facet processing area and its processing width can be corrected and reset.

  Here, it is assumed that eight facet regions are set on the front surface and the rear surface of the lens, respectively, as described above. Further, it is assumed that the chamfering amount on the edge side in FIG. 9 is 1.2 mm due to the setting of the maximum processing width W of each facet region. In this case, the facet processing time Tfa of the lens front surface and the lens rear surface is calculated as 7 minutes 5 seconds by the above-described calculation.

  In the setting of Example 5, the facet processing time Tfa = 7 minutes with respect to the above Example 3 (Tr = 55 seconds, Tfi = 30 seconds, Tpo = 47 seconds, Tc = 72 seconds, Tcp = 94 seconds in total 298 seconds) Since 5 seconds are added, the machining end time T is 723 seconds (12 minutes 3 seconds). When the start switch is pressed again (S-9), the display unit 550 is rounded and displayed as 12 minutes (S-10).

  <Example 6> A case where polycarbonate is set as the lens material and the other processing conditions are the same as in Example 1 will be described, in which processing conditions for auto-jamming, mirror processing, and chamfering are set as processing modes. In the case of polycarbonate, the time of each processing step is determined by different operations on the plastic in the steps of roughing, finishing (beveling), mirror finishing, and chamfering. That is, Tm = 15 seconds and Tr = 55 seconds are the same as plastic, and Tfi = 16 seconds, Tpo = 62 seconds, Tc = 42 seconds, and Tcp = 124 seconds are different from plastic. These are added, and the processing end time T is 314 seconds (the display is rounded and 6 minutes and 15 seconds).

  As described above, in any calculation example of the machining end time, the time displayed on the display unit 550 is counted down as the machining progresses after the machining operation start switch signal is input. As described above, every time each machining step is completed, the remaining machining step time is corrected. Thereby, the worker can know the remaining time on the way, and can refer to whether or not to engage in other work. When the processing is completed, a processing end message is displayed on the display 5 and a sound indicating the end of processing is emitted from the speaker 54.

  In addition, when continuously processing lenses at a processing center or a spectacle store, if the operator is informed that the end of processing is approaching, the worker can efficiently process while preparing for the processing of the next lens. be able to. For example, when the remaining processing time reaches 30 seconds, a sound is output from the speaker 54 to the end of the processing to notify the operator. Alternatively, apart from the display of the processing time, a lamp or the like is displayed to notify that the processing is 30 seconds.

  FIG. 12 is a configuration diagram of a modification example of the above embodiment. In the above embodiment, the time until the end of the processing and the end of the processing are displayed on the display 5 provided in the processing apparatus main body 1. However, in the configuration of this modified example, a radio signal is transmitted to the receiving unit portable by the operator. Notify at.

  In FIG. 12, the apparatus main body 1 is provided with a wireless transmitter 600, and the wireless transmitter 600 is connected to the control unit 50. Reference numeral 700 denotes a receiving unit that can be carried by an operator, and has a housing that can be put in the operator's pocket, such as a mobile phone. The receiving unit 700 includes a receiver 702 that receives a radio signal (radio wave signal) from the radio transmitter 600, a display 704 that displays a processing time end time, a speaker (sound generating means) 706, and a vibrator (vibration). Generator) 708 and a control unit 710 connected thereto.

  The processing end signal (including the time until the processing end counted down) and the processing end signal obtained by the control unit 50 of the apparatus body 1 are transmitted by the radio transmitter 600. The control unit 710 of the receiving unit 700 causes the display 704 to display the time until the end of processing based on the signal received by the receiver 702. Thereby, even when the worker is away from the processing apparatus main body 1 and engaged in other work (for example, the operator of the spectacle store is away from the processing chamber in which the main body 1 is installed to serve customers. ), The worker can check the time until the end of processing on the receiving unit 700 side.

  When a processing end signal is received from the wireless transmitter 600 of the main body 1, the control unit 710 displays a processing end message on the display unit 704 and generates a buzzer sound on the speaker 706. Alternatively, the vibrator 708 is driven to generate vibration. Further, it may be notified by sound or vibration that the end of processing is approaching (for example, the remaining 30 seconds until the end of processing). Thereby, the operator can know that the processing end or processing end is approaching even when he / she is away from the processing apparatus main body 1 and engaged in other work, and moves to the processing of the next lens, etc. Work efficiency can be improved.

It is a schematic block diagram of the process part of the spectacle lens periphery processing apparatus. It is a figure explaining the structure of a chamfering mechanism part. It is a schematic block diagram of a lens edge position measurement part. It is a schematic block diagram of a hole processing / grooving mechanism part. It is a control block diagram of a spectacle lens periphery processing apparatus. It is a figure explaining the simulation screen of a groove processing mode. It is a figure explaining the hole edit screen in hole processing mode. It is a figure explaining the setting of a facet processing area. It is a figure explaining the calculation of a facet line. It is a figure explaining the amount of chamfering in a chamfering process. It is a figure explaining the process sequence of a grooving process. It is a figure explaining the modification of this invention. It is a figure explaining the flowchart of the lens process in this embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Processing apparatus main body 5 Display 50 Control part 101 Carriage 102L, 102R Lens chuck shaft 162 Grinding wheel group 300F, 300R Lens edge position measuring part 400 Hole processing and grooving mechanism part 435 End mill 436 Groove cutter

Claims (1)

A lens rotating means for rotating the lens rotation shaft which holds the spectacle lenses, a setting means for setting processing conditions of the processing mode or the like applied to the periphery of the target lens shape data, lens material and lens, bevel finishing processing, plane finishing Setting means capable of setting a machining mode including at least one of machining, chamfering, grooving, hole machining and facet machining, and a front and rear edge of the lens held on the lens rotation axis based on the lens shape data A lens edge position measuring means for measuring a position; a roughing tool; and a processing tool corresponding to a processing mode settable by the setting means; and the lens peripheral edge is roughened according to the processing conditions set by the setting means. In the spectacle lens periphery processing apparatus that processes the periphery of the lens with each set processing tool after rough processing by
A computing means for computing a machining end time taken from a machining start to a machining end based on the machining conditions set by the machining condition setting means;
Display means for displaying the calculated machining end time,
The computing means computes a roughing processing time based on the lens thickness obtained from the target lens data and the measurement result of the lens edge position measuring means, and the processing time of the bevel finishing or flat finishing is calculated as the lens edge position measuring means. When the chamfering, grooving, drilling and faceting are set, the calculation is performed based on the lens thickness obtained from the measurement result of the A spectacle lens peripheral edge processing apparatus characterized by obtaining a processing time of a process and calculating a processing end time required until the processing ends .

Images