Method for manufacturing ophthalmic device including machining
By optimizing the kinematics and paths of machining tools, the problems of tool wear unevenness and power defects in the prior art are solved, and the tool life is extended and the optical performance improvement of ophthalmic devices is achieved.
Patent Information
- Application Number
- CN202380039307.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-05-11
- Filing Date
- 2023-05-10
- Publication Date
- 2024-12-20
AI Technical Summary
When manufacturing ophthalmic devices, it is difficult to manage the wear of machining tools evenly, resulting in uneven wear of tool and defects in power, and the frequency of replacement and re-wearing tips is high.
By selecting machining tools with cutting edges, determine their kinematics are related to the initial ophthalmic surface and wear parameters, optimize tool paths and angular positions to reduce the travel distance and friction time of cutting edges, balance wear parameters, and achieve uniform tool wear change.
Reduces tool wear unevenness, extends tool life, reduces the frequency of replacement and re-wearing, and improves the optical performance of ophthalmic devices.
Smart Images
Figure CN119173357A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to a method for manufacturing an ophthalmic device, the method comprising machining; and to a method for machining a predetermined surface on a component, the component being an ophthalmic device or a mold in which such an ophthalmic device is intended to be molded.
[0002] The present disclosure also relates to a command and control unit comprising system elements configured to run a computer program to implement at least the machining of the method, and to a manufacturing system comprising such a command and control unit and configured to perform the method.
[0003] The present disclosure also relates to a computer program comprising instructions configured to implement machining of the method when the computer program is run by a computer, and to a client-server communication interface for transmitting at least manufacturing data determined by the computer program implementing at least a part of the method to a remote computer, the remote computer implementing other parts of the method when the computer program is run in a command and control unit. Background Art
[0004] It is known to manufacture ophthalmic devices by machining methods performed by a machining system having a machining tool.
[0005] In the known method, the machining tool follows a predetermined kinematics which is selected depending on the ophthalmic surface that needs to be manufactured in order to obtain an ophthalmic device with a predetermined optical function.
[0006] Some machining systems include a parts counter that counts the number of ophthalmic devices that have been machined or surface treated and can notify the user of the system when to change machining tools. Thus, the replacement of machining tools is performed solely based on the number of devices that have been machined.
[0007] Some other machining systems include a variation or addition to the parts counter, namely a distance counter for counting the total distance traveled by the machining tool during a machining step and also being able to inform the user of the system when to change the machining tool. Thus, the replacement of the machining tool can optionally be made dependent on the distance traveled by the machining tool in addition to the number of devices machined by the tool.
[0008] The above-described machining system thus comprises a counter for taking into account the potential wear of the machining tool, thereby facilitating the maintenance, in particular preventive maintenance, of this tool. Summary of the invention
[0009] The present disclosure relates to a method for manufacturing an ophthalmic device, the method comprising machining, in which the wear of the machining tools is taken into account and the method is easy to implement.
[0010] Thus, according to a first aspect, the present disclosure provides a method for manufacturing an ophthalmic device, the method comprising providing a predetermined surface on a component and corresponding to an initial ophthalmic surface with a machining step, the machining step comprising:
[0011] - a step of selecting a machining tool having at least one cutting edge;
[0012] - a step of selecting an initial ophthalmic surface of the ophthalmic device intended to be manufactured;
[0013] - A step of providing determined kinematics of the machining tool, the determined kinematics being related to wear parameters of the initial ophthalmic surface and the cutting edge;
[0014] - a step of machining a predetermined surface according to the determined kinematics of the machining tool;
[0015] Therein, the wear parameter is related at least to the distance travelled by the cutting edge for machining the predetermined surface and / or the friction time between the cutting edge and the component being machined.
[0016] According to the present disclosure, tool wear unevenness on the cutting edge of a machining tool, in particular, for example, waviness deformation that may occur on the cutting edge of the tool if the same angle of the cutting edge is used more frequently than another angle, can be reduced, thereby limiting optical power defects on ophthalmic devices.
[0017] According to the present disclosure, therefore, there is not only an optimization of the machining tool travel distance, but also an optimization of the angle of the cutting edge used in the machining process.
[0018] Additionally, in the present disclosure, a correlation exists between the localized wear on the machining tool, the geometrical features of the ophthalmic device to be manufactured (particularly its curvature), and the turning kinematics.
[0019] More generally, the present disclosure relates to optimization of kinematics (also referred to as tool paths) to even out tool wear and reduce discontinuities on its cutting edge.
[0020] Furthermore, by evenly distributing the wear of the machining tools, tool life management can be improved, in particular by reducing the frequency of replacement and / or resharpening of the machining tools.
[0021] Advantageous and convenient features of the manufacturing method are described below.
[0022] The initial ophthalmic surface may correspond to a predetermined optical function.
[0023] The part being machined is either the ophthalmic device directly or a mold into which an ophthalmic device is intended to be molded.
[0024] The mold can be used to manufacture semi-finished lenses or finished lenses.
[0025] The wear parameter is further related to at least one of a depth of cut, a feed rate and a rotational speed for machining the predetermined surface and / or a material property of the component to be machined.
[0026] The determined kinematics of the machining tool are defined by both the tool path of the machining tool and at least one angular position corresponding to a selected angle of the cutting edge used along the tool path.
[0027] In other words, the wear of the machining tool over selected angles of its cutting edge may be smoothed and / or distributed.
[0028] The determined kinematic tool path of the machining tool comprises first instructions to move the machining tool from an edge to a center of a predetermined surface to be machined and / or to move the machining tool from a center to an edge of a predetermined surface to be machined.
[0029] The determined kinematic tool path of the machining tool comprises second instructions to move the machining tool in a first direction relative to the rotation axis about which the part to be machined rotates and / or to move the machining tool in a second direction opposite to the first direction relative to the rotation axis about which the part to be machined rotates.
[0030] The determined kinematic, tool path and angular position of the machining tool are selected to reduce the travel distance of the selected angle cutting edge for machining the predetermined surface and / or the friction time between the selected angle cutting edge and the part being machined.
[0031] The determined kinematics, tool path and angular position of the machining tool are selected to balance travel distances along selected ones of the cutting edges and / or friction times along selected angles of the cutting edges with the machined component for machining the predetermined surface.
[0032] The determined kinematics, tool path and angular position of the machining tool are selected so as to reduce wear parameters at the center of the predetermined surface to be machined.
[0033] The initial ophthalmic surface may be an initial progressive ophthalmic surface, or a toric surface or other surface.
[0034] The method further comprises the steps of providing a series of selected initial ophthalmic surfaces of the ophthalmic device to be manufactured and a series of determined kinematics of the machining tool, the determined kinematics being related to the wear parameters of the initial ophthalmic surfaces and the cutting edges for machining the corresponding predetermined surfaces on the corresponding parts.
[0035] The component may be an ophthalmic device or a mold in which an ophthalmic device is intended to be molded. In this regard, the present disclosure also provides a method for machining a predetermined surface on a component, the component being an ophthalmic device or a mold in which such an ophthalmic device is intended to be molded, the predetermined surface corresponding to an initial ophthalmic surface, the method comprising:
[0036] - a step of selecting a machining tool having at least one cutting edge;
[0037] - a step of selecting an initial ophthalmic surface of the ophthalmic device intended to be manufactured;
[0038] - A step of providing determined kinematics of the machining tool, the determined kinematics being related to wear parameters of the initial ophthalmic surface and the cutting edge;
[0039] - a step of machining a predetermined surface according to the determined kinematics of the machining tool;
[0040] Therein, the wear parameter is related at least to the distance travelled by the cutting edge for machining the predetermined surface and / or the friction time between the cutting edge and the component being machined.
[0041] According to a second aspect, the present disclosure also provides a command and control unit comprising system elements configured to run a computer program in order to implement each of the machining steps of the method for manufacturing an ophthalmic device as described above.
[0042] According to a third aspect, the present disclosure further provides a manufacturing system comprising a machining tool having a cutting edge and a command and control unit as described above, the system being configured to perform such a machining step.
[0043] According to a fourth aspect, the present disclosure also provides a computer program comprising instructions configured to implement the machining steps described above when the computer program is executed by a computer.
[0044] According to a fifth aspect, the present disclosure further provides a client-server communication interface for transmitting at least manufacturing data, such as predetermined kinematics, to a remote computer, wherein the manufacturing data is determined by a computer program that implements at least some steps of the method for manufacturing by machining an ophthalmic device as described above, and when the computer program runs in a command and control unit, the remote computer implements other steps of this method for manufacturing. BRIEF DESCRIPTION OF THE DRAWINGS
[0045] The description of the present disclosure now continues with a detailed description of advantageous embodiments presented below, by way of non-limiting examples and with reference to the accompanying drawings.
[0046] Figure 1 A manufacturing system (such as a digital surfacing machine) according to the present disclosure is schematically depicted, the manufacturing system being configured to perform the steps of a method for manufacturing a component, the component being an ophthalmic device or a mold in which such an ophthalmic device is intended to be molded.
[0047] Figure 2 A client-server communication interface is diagrammatically shown that includes system components configured to communicate at least one configuration parameter determined by a method according to the present disclosure to a remote data processing system.
[0048] Figure 3 is a block diagram showing a method according to the present disclosure and with the aid of Figure 1 and Figure 2 The operating steps of the method for manufacturing an ophthalmic device using a digital surface processing machine and / or a client-server communication interface as shown.
[0049] Figure 4 It is shown Figure 3 Block diagram of the machining steps.
[0050] Figure 5 It is shown Figure 4 Block diagram of the kinematic determination steps indicated in . DETAILED DESCRIPTION
[0051] The present disclosure relates to a method for manufacturing an ophthalmic device, the method comprising a machining step.
[0052] Figure 1 A manufacturing system is shown which is configured to perform a machining step on at least a predetermined surface on a component 3, which is an ophthalmic device or a mold in which such an ophthalmic device is intended to be molded. Such a mold can be used to manufacture a semi-finished lens or a finished lens.
[0053] The system comprises a manufacturing machine 21 and a system component generally formed by at least one command and control unit 22, which is configured to communicate with a data processing system (or control unit) of the machine 21 and is configured to run a computer program having instructions that are configured to implement at least the machining steps of the method when the computer program is run by a computer.
[0054] The machine 21 is here a numerically controlled “free form” lathe 1 , the numerical control indicating the set of equipment and software whose function is to give movement instructions to all the elements of the machine 1 .
[0055] The machine 1 comprises a machining tool 27 , for example a movable machining arm on which a cutting tool provided with a cutting edge is mounted, and a data processing system or control unit (not shown) configured for controlling the tool 27 .
[0056] The command and control unit 22 comprises a microprocessor 23 having a memory 24 , in particular a non-volatile memory, allowing it to load and store computer programs (also called software) which, when executed in the microprocessor 23 , allow the method according to the present disclosure to be implemented.
[0057] This non-volatile memory 24 is, for example, of the ROM (“Read Only Memory”) type.
[0058] The command and control unit 22 further comprises a memory 25 , in particular a volatile memory, allowing data to be stored during the execution of the software and the implementation of the method.
[0059] This volatile memory 25 is, for example, of RAM or EEPROM type (“Random Access Memory” and “Electrically Erasable Programmable Read Only Memory”, respectively).
[0060] The command and control unit may only be at least partially integrated into the machine. In other words, the control unit may be partially or completely arranged outside the machine.
[0061] The command and control unit may at least partially form part of the machine and may comprise one or more command and control modules located internally and / or externally to the machine.
[0062] In the case where the machined component is directly an ophthalmic device, the machine 21 may also be configured for polishing the faces and / or for edging the peripheral edges to form an ophthalmic lens.
[0063] The command and control unit 22 is configured to command and control at least some of the steps of the manufacturing method described below.
[0064] Figure 2 A client-server communication interface 26 is shown, comprising, for example, a so-called provider side 29 a and another so-called client side 29 b , and these two sides communicate via an Internet interface 28 .
[0065] The supplier side includes a server 29a which is linked to the data processing system or Figure 1 The server 29a is configured to communicate with an Internet interface 28, using the same type of command and control unit 22a.
[0066] The client side 29b is configured to communicate with the Internet interface 28 and is linked to a data processing system or command and control unit 22b of the same type as the provider side.
[0067] Furthermore, the command and control unit 22b on the client side is linked to Figure 1 A manufacturing machine 21b of the same type is used for manufacturing at least the first side 3b of the ophthalmic substrate.
[0068] For example, the command and control unit 22 b on the client side is configured to receive from the user parameters including the geometrical features of the initial ophthalmic surface intended to be manufactured and the wear parameters of the cutting edge of the machining tool 27 .
[0069] These wear parameters can be defined by at least one of: the distance traveled by the cutting edge for machining the predetermined surface; the friction time between the cutting edge and the part being machined; the cutting depth, feed rate and / or rotation speed for machining the predetermined surface; and the material properties of the part to be machined.
[0070] The command and control unit 22b on the client side sends the received data to the command and control unit 22a on the supplier side using the Internet 28 and the server 29a interface for determining the manufacturing files and operating parameters.
[0071] The command and control unit 22a on the supplier side executes the computer program it contains in order to implement steps such as determining the kinematics of the machining tool 27 in relation to the wear parameters of the initial ophthalmic surface and the cutting edge.
[0072] Using the server 29a and the Internet interface 28, the command and control unit 22a on the supplier side sends the manufacturing files and the operating parameters, in particular the kinematics of the machining tool 27, to the command and control unit 22b on the client side.
[0073] The command and control unit 22b on the client side is here configured to execute software for implementing the further steps of the method for manufacturing a component by using the manufacturing files and operating parameters (in particular the kinematics of the machining tool 27) so as to machine a predetermined surface on a component 3 by means of the manufacturing system 21b, the component being an ophthalmic device or a mold in which such an ophthalmic device is intended to be molded.
[0074] In a variant, the manufacturing system may be located on the supplier side, such that the command and control unit 22a on the supplier side is configured to both determine the kinematics of the machining tool 27 and to machine a predetermined surface on a component 3, which is an ophthalmic device or a mold in which such an ophthalmic device is intended to be molded.
[0075] Figure 3 The main steps of the method for manufacturing performed by the manufacturing system and / or the client-server communication interface 26 as described above are shown, and include:
[0076] - a step 100 of providing or obtaining an ophthalmic device or a mould in which such an ophthalmic device is intended to be moulded;
[0077] - a step 110 of machining a predetermined surface on the component provided in step 100, the predetermined surface corresponding to the initial ophthalmic surface; and
[0078] - When the component is a mold in which an ophthalmic device is intended to be molded, molding the ophthalmic device in the machined mold such that an initial ophthalmic surface is obtained, for example corresponding to a predetermined optical function on the ophthalmic device.
[0079] Figure 4 The machining step 110 is shown in more detail and includes:
[0080] - a step 130 of selecting a machining tool 27 having a cutting edge;
[0081] - a step 140 of selecting an initial ophthalmic surface of the ophthalmic device intended to be manufactured, the initial ophthalmic surface corresponding for example to a predetermined optical function;
[0082] - a step 150 of providing the determined kinematics of the machining tool 27, the determined kinematics being related to the wear parameters of the initial ophthalmic surface and the cutting edge; and
[0083] - A step 160 of machining the predetermined surface in this manner according to the determined kinematics of the machining tool.
[0084] Figure 5 The determination of the kinematics of the machining tool is shown in more detail.
[0085] The method may include a step 180 of receiving a value representing a distance traveled by a cutting edge for machining a predetermined surface.
[0086] The method may include a step 190 of receiving a value representative of a friction time between the cutting edge and the component being machined.
[0087] The method may comprise a step 200 of receiving a value representative of a depth of cut of a machining tool 27 for machining a predetermined surface.
[0088] The method may include a step 210 of receiving a value representing a feed rate of the machining tool 27 for machining a predetermined surface.
[0089] The method may comprise a step 220 of receiving a value representative of a rotational speed of the component 3 for machining a predetermined surface.
[0090] The method may comprise a step 230 of receiving a value representative of a material property of the component 3 to be machined.
[0091] The method may then comprise the following step 300 of determining a wear parameter of the cutting edge of the machining tool 27 based on at least one of the following values: a value representing the distance travelled by the cutting edge, a value representing the friction time between the cutting edge and the component being machined, a value representing the cutting depth and feed rate of the machining tool 27, and / or a value representing the rotation speed and material properties of the component 3 to be machined.
[0092] Furthermore, the method may comprise a step 400 of receiving at least values representative of an initial ophthalmic surface intended to be manufactured, the values being defined, for example, by geometrical features and / or optical functions corresponding here, for example, to an initial progressive ophthalmic surface.
[0093] The method may further comprise a step 500 of determining the kinematics of the machining tool 27 as a function of the values of the wear parameters representative of the cutting edge of the machining tool 27 obtained in step 300 and the values of the initial ophthalmic surface obtained in step 400 .
[0094] It should be noted that the determined kinematics of the machining tool 27 are defined both by the tool path of the machining tool 27 and by at least one angular position corresponding to a selected angle of the cutting edge used along the tool path.
[0095] The determined kinematic tool path of the machining tool 27 may comprise instructions for moving the machining tool 27 from the edge to the center of the predetermined surface to be machined.
[0096] In a variant or in addition, the determined kinematic tool path of the machining tool 27 may comprise instructions, namely said first instructions, for moving the machining tool 27 from the centre to the edge of the predetermined surface to be machined.
[0097] In a variant or in addition, the determined kinematic tool path of the machining tool 27 may comprise further instructions, namely said second instructions, to move the machining tool 27 in a first direction relative to the axis of rotation about which the component 3 to be machined rotates.
[0098] Such a first direction may be indicated as X+ and defined depending on the first instruction to correspond to a displacement of the machining tool 27 from a first side of the edge to the center and from the center to a second side of the edge (opposite to the first edge), respectively.
[0099] The first side and the second side are defined here relative to the production system.
[0100] In a variant or in addition, the determined kinematic tool path of the machining tool 27 may comprise further instructions, namely said second instructions, to move the machining tool 27 in a second direction opposite to the first direction relative to the axis of rotation about which the part 3 to be machined rotates.
[0101] Such a second direction may be indicated as X- and defined depending on the first instruction to correspond to a displacement of the machining tool 27 from the second side of the edge to the center and from the center to the first side of the edge (opposite the second edge), respectively.
[0102] The determined kinematic, tool path and angular position of the machining tool 27 may be determined and / or selected so as to reduce and / or balance the distance traveled by the cutting edge for machining a selected angle of a predetermined surface.
[0103] In a variant or in addition, a determined kinematic, tool path and angular position of the machining tool 27 may be determined and / or selected in order to reduce and / or balance the friction time between the cutting edge of a selected angle and the part being machined.
[0104] In a variant or in addition, a determined kinematic, tool path and angular position of the machining tool is determined and / or selected in order to reduce wear parameters at the center of the predetermined surface to be machined.
[0105] in this regard, Figure 6 The distance (indicated by DT in meters) travelled by the cutting edge of the machining tool at different angles (TA in degrees) depending on the chosen kinematics (indicated by K1-K5) and therefore on the tool path is shown, for example when two components with a curvature equal to 168 mm are machined.
[0106] The selected kinematics here are K1 "X+ and edge to center", K2 "X+ and X- and center to edge", K3 "X+ and center to edge", K4 "X- and X+ and center to edge", and K5 "X+ and center to edge and edge to center".
[0107] Figure 6 It is shown that the angular range of the edge of the machining tool and the distance range traveled vary significantly depending on the kinematics selected.
[0108] Based on such information, hybrid kinematics of varying degrees of complexity for machining one or more components and taking into account the above may be determined.
[0109] For example, the hybrid kinematics of the machining tool 27 including a first instruction to move the machining tool 27 from the edge to the center of a predetermined surface to be machined and a first instruction to move the machining tool 27 from the center to the edge of the predetermined surface to be machined can both reduce the distance traveled at each point on the cutting edge and balance the distance traveled on the entire cutting edge.
[0110] The manufacturing system is thus capable of setting up mixed and complex kinematics.
[0111] It should be noted that the machining tool 27 may have an opening angle large enough to cut the entire range of curvatures.
[0112] The method as described above can be implemented in a manufacturing system capable of performing a single point diamond turning method, for example focusing on the entire travel distance on a component on a single selected portion of a machining tool. Thus, another single portion can be selected to manufacture a subsequent component.
[0113] The method may further comprise the step of providing a series of selected initial ophthalmic surfaces of the ophthalmic device to be manufactured and a series of determined kinematics of the machining tool, the kinematics being related to the wear parameters of the initial ophthalmic surfaces and the cutting edges for machining the corresponding predetermined surfaces on the corresponding component.
[0114] This is because a large number of components can be machined with a single machining tool 27, so that a series of defined kinematics can improve tool life management.
[0115] According to the above disclosure, tool wear unevenness on the cutting edge of the machining tool 27, in particular the wavy deformation that may occur on the cutting edge of the tool if, for example, the same angle of the cutting edge is used more frequently than another angle, can be reduced, thereby limiting the optical power defects on the ophthalmic device.
[0116] Thus, there is not only an optimization of the machining tool travel distance, but also an optimization of the angle of the cutting edge used in the machining process.
[0117] Furthermore, there is a correlation between the local wear on the machining tool 27, the geometrical features of the ophthalmic device to be manufactured (particularly its curvature), and the turning kinematics.
[0118] More generally, the present disclosure relates to optimization of kinematics (also referred to as tool paths) to even out tool wear and reduce discontinuities on its cutting edge.
[0119] Furthermore, by evenly distributing the wear of the machining tools, tool life management can be improved, in particular by reducing the frequency of replacement and resharpening of the machining tools.
[0120] It is also possible to smooth and / or distribute the wear of the machining tool at selected angles of its cutting edge.
[0121] More generally, it should be noted that the present disclosure is not limited to the examples described and presented.
Claims
1. A method for manufacturing an ophthalmic device, the method comprising machining (110) a predetermined surface on a component (3) and corresponding to an initial ophthalmic surface, the machining step comprising: - selecting (130) a machining tool (27) having at least one cutting edge; - selecting (140) an initial ophthalmic surface of the ophthalmic device intended to be manufactured; - providing (150) determined kinematics of the machining tool, the determined kinematics being related to wear parameters of the initial ophthalmic surface and the cutting edge; - machining (160) the predetermined surface according to the determined kinematics of the machining tool; The wear parameter is at least related to a distance traveled by the cutting edge for machining the predetermined surface and / or a friction time between the cutting edge and the machined component.
2. The method according to claim 1, wherein: The part (3) being machined is directly the ophthalmic device or a mold in which the ophthalmic device is intended to be molded.
3. The method according to claim 1, wherein: The wear parameter is further related to at least one of a cutting depth, a feed rate and a rotational speed for machining the predetermined surface and / or a material property of the component (3) to be machined.
4. The method according to any one of claims 1 to 3, wherein: The determined kinematics of the machining tool (27) are defined by both a tool path of the machining tool and at least one angular position corresponding to a selected angle of the cutting edge used along the tool path.
5. The method according to claim 4, wherein: The determined kinematic tool path of the machining tool (27) comprises first instructions to move the machining tool from an edge to a center of the predetermined surface to be machined and / or to move the machining tool from a center to an edge of the predetermined surface to be machined.
6. The method according to any one of claims 4 and 5, wherein: The determined kinematic tool path of the machining tool (27) comprises second instructions for moving the machining tool in a first direction relative to the rotation axis about which the component to be machined rotates and / or for moving the machining tool in a second direction opposite to the first direction relative to the rotation axis about which the component (3) to be machined rotates.
7. The method according to any one of claims 4 to 6, wherein: The determined kinematic tool path and angular position of the machining tool (27) are selected so as to reduce the travel distance of the selected angle cutting edge for machining the predetermined surface and / or the friction time between the selected angle cutting edge and the component (3) being machined.
8. The method according to any one of claims 4 to 6, wherein: The determined kinematics, tool path and angular position of the machining tool (27) are selected so as to balance the travel distances along selected ones of the cutting edges and / or the friction times along selected angles of the cutting edges with the part (3) being machined for machining the predetermined surface.
9. Method according to any one of claims 4 to 8, selecting the determined kinematics, the tool path and the angular position of the machining tool (27) so as to reduce wear parameters at the centre of the predetermined surface to be machined.
10. The method according to any one of claims 1 to 9, providing a series of selected initial ophthalmic surfaces of the ophthalmic device intended to be manufactured and a series of determined kinematics of the machining tool (27), the determined kinematics being related to the wear parameters of the initial ophthalmic surfaces and of the cutting edges for machining corresponding predetermined surfaces on the corresponding parts.
11. A method for machining a predetermined surface on a component (3), said component being an ophthalmic device or a mould in which such an ophthalmic device is intended to be moulded, said method comprising: - selecting (130) a machining tool (27) having at least one cutting edge; - selecting (140) an initial ophthalmic surface of the ophthalmic device intended to be manufactured; - providing (150) determined kinematics of the machining tool, the determined kinematics being related to wear parameters of the initial ophthalmic surface and the cutting edge; - machining (160) the predetermined surface according to the determined kinematics of the machining tool; The wear parameter is at least related to a distance traveled by the cutting edge for machining the predetermined surface and / or a friction time between the cutting edge and the component being machined.
12. A command and control unit comprising system elements configured to run a computer program in order to implement machining according to the method of any one of claims 1 to 11.
13. A manufacturing system comprising a machining tool having a cutting edge and a command and control unit (22) according to claim 12, the system being configured for performing said machining.
14. A computer program comprising instructions configured to implement machining according to the method of any one of claims 1 to 11 when the computer program is executed by a computer.
15. A client-server communication interface for transmitting at least manufacturing data, such as predetermined kinematics, to a remote computer, wherein the manufacturing data is determined by a computer program implementing at least part of the method according to any one of claims 1 to 11, and when the computer program is run in a command and control unit, the remote computer implements other parts of the method for manufacturing.