METHOD FOR LOADING AT LEAST ONE TOOL INTO A MACHINE

Abstract

The invention relates to a method (100) for loading at least one tool (12) into at least one machine (10) comprising a plurality of tools (12) for carrying out production operations, at least one tool loading module (14) comprising a plurality of compartments (16) configured to receive said tools, an information display device (30), and at least one control / command system (20) connected to the tool loading module and to the information display device (30), the control / command system being configured to indicate one or more tools to be loaded into the loading module so that an actual operating time of the machine corresponds to a predicted operating time of the machine. The method (100) according to the invention therefore makes it possible to prevent situations where the machine is stopped during the process of manufacturing, assembling, repairing, etc. of the part. Figure for abstract: Fig. 3

Description

Title of the invention: METHOD FOR LOADING AT LEAST ONE TOOL INTO A MACHINE Technical field of the invention

[0001] The invention relates to the field of methods for loading at least one tool into a machine, the method comprising a predictive supervision step for monitoring the operations carried out on the machine. This concerns all operations occurring during the manufacture, assembly, repair, etc. of an industrial part. Technical background

[0002] Machines used in industry are controlled by means of control / command systems integrated into the latter, which are sometimes supplemented or assisted by a supervisor which is often a specific and dedicated application installed on a computer-type device and connected to the machine(s). They conventionally comprise a plurality of tools for implementing operations on the part(s), at least one loading module comprising a plurality of compartments for receiving the tools, a display device and a control / command system.

[0003] The control / command system can collect data on the loading status of the compartments. However, it is not able to deduce the progress of the operations and the actions to come. It does not provide the operating time of the machine, nor, where applicable, the actions to be implemented by the operator so that the complete process of manufacturing the part can take place. Furthermore, the control / command system only transmits the information when reading the line of the program referring to this action.

[0004] For the teams working on these machines, it is therefore very difficult to organize their interventions in the process of manufacturing, assembly or repair of parts, because they do not have sufficient visibility on the manual and / or automatic operations to be carried out.

[0005] The state of the art therefore does not allow for predictive supervision of industrial operations carried out on a machine, in particular for the manufacture, assembly and repair of parts, enabling the operator to be assisted in the organization of his various interventions. Summary of the invention

[0006] The invention proposes in this regard a method of loading a tool into at least one machine, the loading method comprising the following steps: A) performing predictive supervision of said at least one machine, the machine comprising a plurality of tools for implementing production operations, at least one tool loading module comprising a plurality of compartments configured to receive said tools, an information display device and at least one control / command system connected to the tool loading module and to the information display device, the control / command system being configured to implement by computer the following steps:

[0007] a) collecting data on an actual loading state of the compartments,

[0008] b) collecting data on a progress status of the tooling sequences to performed by machine,

[0009] c) predicting an operating time of the machine from at least one model implemented in said control / command system and from the data obtained during steps a) and b),

[0010] d) comparing the actual loading state of the compartments obtained in step a) with an expected loading state, and if the actual loading state of the compartments differs from the expected loading state, and an actual operating time of the machine is less than the predicted operating time of the machine:

[0011] e) Indicating via the display device one or more tools to be loaded into the loading module so that the actual operating time of the machine corresponds to the operating time predicted in step c),

[0012] B) when the actual loading state of the compartments differs from the expected loading state, loading at least one tool into one of the compartments of the loading module according to a result of the comparison step d).

[0013] The loading method according to the invention thus makes it possible to predict, in real time, the operating time of the machine as well as the next steps to be carried out by the operator. Indeed, as the operator knows in real time the actual loading state of the compartments, he knows whether an action is to be carried out on his part. If the actual loading state of the compartments differs from the expected loading state and therefore the tools necessary for completing the manufacturing of the part are not available in the loading module, the operator can then load the tools necessary for finalizing the manufacturing process. This makes it possible to avoid one or more shutdowns of the machine and, incidentally, an extension of the manufacturing time of the part(s).Furthermore, as the loading method according to the invention makes it possible to know, in real time, the next steps to be carried out by the operator, the latter can better organize his interventions in the different stations at which he has tasks to carry out.

[0014] The operator can, for example, view on the control / command system the times at which he must be present on the machine in order to carry out manual actions. He can also find out the nature of each action in order to best prepare for it and limit the machine's downtime. Thus, a continuous presence of the operator in front of the machine throughout the operation is not necessary.

[0015] According to different characteristics of the invention which can be taken together or separately: - The method comprises, after step e) of indicating the tools to be loaded, a step f) consisting of displaying the predicted operating time of the machine on the display device, - The display device collects data on the actual loading status of the compartments, the display device being configured to display in a differentiated manner an empty compartment and a compartment occupied by a tool; - The control / command system comprises a synchronization module configured to update the data from collection steps a) and b) and the predicted operating time obtained in step c) according to the expected loading state; - The method comprises a step of modifying the progress status of the tooling sequences to be carried out by the machine based on a result of step d) of comparison; - The control / command system includes an editing module for the or each model implemented in said control / command system; - The loading module includes more than 30 compartments, - The method comprises, prior to step B) of loading, a step C) of unloading at least one tool from one of the compartments of the loading module according to the result of step d) of comparison, the loading of step B) then being carried out in the compartment left free following the unloading step, - The part is a part of an aircraft. Brief description of the figures

[0016] Other objects, characteristics and advantages of the invention will appear more clearly in the following description, given with reference to the appended figures, in which:

[0017] - [Fig.1a] illustrates an overview of a production facility comprising a machine equipped with a control / command system and a predictive supervision application,

[0018] - [Fig.lb] schematically illustrates a production installation comprising a machine equipped with a control / command system,

[0019] - [Fig.2a] is a schematic view of tools and a loading module of the tools of a machine equipped with a control / command system, before loading one or more tools,

[0020] - [Fig.2b] is a schematic view of tools and a loading module of the tools of a machine equipped with a control / command system, after loading one or more tools,

[0021] - [Fig.3] illustrates the different stages of a predictive supervision stage according to an embodiment of the method of the present invention,

[0022] - [Fig.4] illustrates the different stages of a method according to one embodiment of the present invention,

[0023] - [Fig.5] illustrates an example of a cycle diagram.

[0024] In the attached figures, the steps of the method according to the invention which are indicated by dotted rectangles are optional. Detailed description

[0025] A method 100 for loading at least one tool 12 into at least one machine 10 is described below, the method 100 comprising a step A) of predictive supervision of said at least one machine 10.

[0026] With reference to figures 1a and 1b, the production installation 1 comprises, in addition to the machine 10, a control station PCO comprising a control / command system 20 as well as an information display device 30. An operator O stands in front of the control station PCO.

[0027] The control / command system 20 may be a computer equipped with a processor. It makes it possible to implement by computer the loading method 100 according to an exemplary embodiment of the invention. Preferably, it comprises a control screen 28 separate from the information display device 30. That being said, the control / command system 20 may comprise a dedicated server.

[0028] The display device may be a computer screen, a television, a smartphone or any similar device having a control screen.

[0029] The control / command system 20 is connected to the machine 10. In this respect, the production installation 1 can advantageously comprise a communication network making it possible to connect the control / command system 20 to the machine 10 directly or indirectly via an industrial network. For example, the communication network is a local network such as a wired FIL network, a Bluetooth network, a Wi-Fi network or an Ethernet network. In all cases, the communication network is configured to transmit information between the control / order 20 and machine 10.

[0030] The control / command system 20 preferably comprises a processor 22 and a memory 24. The memory 24 is configured to receive and store the data transmitted by the machine 10 via the communication network. In other words, the memory 24 is configured to collect the data coming from the machine 10. The processor 22 is configured to analyze and / or process the data collected in the memory. In this regard, software for processing this data can be installed on the processor 22 in order to automate the processing of this data in real time. The operations carried out by the processor 22 will be described in more detail in the description of the steps of the loading method 100.

[0031] The machine 10 comprises a plurality of tools 12 for carrying out machining operations. The operations correspond to the different steps leading to the production of a part. Each operation therefore corresponds to a step to be carried out on the part. These operations form a Computer Aided Manufacturing chain (CAM chain) in which each step is associated with an execution program.

[0032] The tools 12 may be of different types depending on the use made of the machine 10. For example, in a machine 10 intended to carry out operations for removing material from aluminum blocks, the tools 12 may be core cutters, counterbores, reamers, planer blades, saw cutters, etc.

[0033] The machine 10 therefore also comprises a tool loading module 14 comprising a plurality of compartments 16 configured to receive said tools 12. The tool loading module 14 may also be called a “store”. Indeed, the tool loading module 14 corresponds to the storage location of the tools 12 of the machine 10. It has a capacity, that is to say a number of compartments 16, which varies from one machine 10 to another. In the illustrated embodiment, the tool loading module 14 comprises seventeen compartments, however in practice, the machine 10 comprises a number of compartments greater than thirty, which allows it to carry out a high number of tooling sequences.

[0034] In this regard, a tooling sequence or tool sequence is a step of the process where a tool 12 is used. An operation is composed of several tool sequences, one tool being used per sequence.

[0035] In certain cases, the number of tools required to carry out a tooling sequence, an operation or the complete manufacture of the part may be greater than the number of compartments 16 of the tool loading module 14. The operator O may therefore be required to unload tools from the loading module 14 and to load tools 12 into said loading module 14. In this regard, it should be emphasized that a loading tool module 14 may be shared between different machines 10, in the case of a multi-station production installation.

[0036] With reference to Figures 3 and 4, a loading method 100 is illustrated according to an embodiment of the invention. This loading method 100 comprises a step A) of predictive supervision of the machine 10 comprising different steps a) to e) implemented by the control / command system 20 and described below.

[0037] During a step a), the control / command system, advantageously consisting of several data processing algorithms making it possible to expose information according to the captured data 20, is configured to collect data on an actual loading state of the compartments 16. The actual loading state of the compartments 16 indicates the loading state of the compartments 16 of the tool loading module 14. For each compartment 16, the actual loading state indicates whether it is “empty” or “occupied”. Depending on the stage of progress of the loading method 100 according to the invention, several compartments 16 may be occupied, or even all of the compartments 16. The actual loading state of the compartments is provided by the tool loading module 14 itself. In this regard, the control / command system 20 is connected to the tool loading module 14.

[0038] Furthermore, during a step b), the control / command system 20 is also responsible for collecting data on a progress status of the tooling sequences to be carried out by the machine 10 and the manual actions to be carried out by the operator O. The progress status of the tooling sequences to be carried out by the machine 10 indicates the tooling sequences remaining to be carried out. It can, optionally, also indicate the tooling sequences already carried out, the tooling sequences in progress and the duration of the tooling sequences. Depending on the progress stage of the loading method 100 according to the invention, the progress status of the tooling sequences can indicate that a tooling sequence remains to be carried out, that tooling sequences remain to be carried out, or that all of the tooling sequences are to be carried out.

[0039] Concomitantly, as the display device 30 is connected to the control / command system 20, the display device 30 can then display the step or steps remaining to be performed, for example in the form of a DIAG cycle diagram or a simogram. The DIAG cycle diagram makes it possible to represent the succession of the different operations to be performed in the loading method 100 according to the invention so as to account for the duration of each operation. For example, an operation is represented by a rectangle whose length is proportional to the duration of the operation, a long-term operation thus being represented as being longer than a shorter-term operation.

[0040] [Fig.5] illustrates an example of a DIAG cycle diagram in which the operation times are normalized and precisely indicated. The instant t of the process 100 The loading time reached is indicated by a black bar labeled and visible from the display device 30. The content of each operation is also accessible when the operator O presses the button provided for this purpose.

[0041] The manual actions to be carried out may be of different natures. They may involve all types of manual interventions necessary for the process of producing the part in its entirety, for example loading tools, unloading tools, taking measurements, removing chips, performing a visual inspection, etc.

[0042] These manual actions can sometimes be carried out in parallel with the part production process, that is to say they do not require stopping or pausing the process, such as for example loading and unloading tools, and sometimes require pausing the process such as for example taking measurements or removing chips.

[0043] Other data may be collected by the control / command system 20. For example, in multi-station production, tools 12, initially associated with a given station, may be used in one or more other stations. The control / command system 20 may therefore also receive information relating to the allocation of the tools 12 according to the station of origin. Other information, such as the number of uses or the general condition of the tools 12, the time elapsed since the machine(s) 10 were put into operation may also be collected.

[0044] According to an example of the invention, the control / command system 20 is configured to predict, during a step c), an operating time of the machine 10 from at least one model M implemented in said control / command system 20 and the data collected during the collection steps a) and b). Of course, in the case of multi-station production, the operating time of several machines 10 or of each of the machines 10 can advantageously be determined. The or each model M makes it possible to know, in real time, depending on the operation in progress: The order in which the 12 tools should be implemented, The number of tools 12 to load and unload, The number of pots available in the tool magazine, The actual duration of the tooling sequence, The duration of use of each tool 12, The reference of the tool 12 used, Manual actions to be performed, Manual actions already implemented or in progress, The theoretical duration of future actions, The effective duration of each manual action,

[0045] In the context of the invention, the or each model is thus advantageously configured to process the available data, in particular the data collected at steps a) and b), in real time in order to determine the operating time of the machine(s) 10.

[0046] In this regard, the model M can gradually be enriched with new data relating to the tool sequences or modified according to the actual sequences to be carried out. The control / command system 20 can also implement several models M which can be different from each other depending on the operations to be carried out. For example, if a machine 10 is used to carry out the manufacture of several different parts, it may be useful to implement a separate model M for each type of part to be manufactured.

[0047] In this regard, and according to a preferred embodiment, the control / command system 20 comprises a module 28 for editing the model(s) M. The editing module 28 makes it possible to progressively enrich and / or modify the model(s) M of the tooling sequences.

[0048] At each instant, the predicted operating time of the machine corresponds to the remaining operating time of the machine 10 to implement the tooling sequences remaining to be performed. In other words, this is the time during which the machine 10 should be autonomous, i.e. the time required for the machine 10 to implement the remaining tooling sequences without human intervention. The predicted operating time should not be confused with the time during which the machine 10 is said to be “energized”, i.e. supplied with electrical energy and capable of performing operations. The machine 10 must be “energized” to perform operations but does not necessarily perform operations when it is “energized”. These two durations, i.e. the predicted operating time and the “energized” duration of the machine, may be equal.

[0049] When several machines 10 are concerned, the operating time of a machine at a given instant designates the operating time remaining for this machine, for each machine 10 concerned, to carry out the remaining operations. The predicted operating time of one or each machine 10 is therefore updated in real time, according to the data received, in particular the progress status of the tool sequences to be carried out by the or each machine. The operating time predicted in step c) can be displayed on the display device 30 so that the operator O can know in real time the time necessary to implement the remaining tooling sequences.

[0050] The operating time predicted in step c) does not necessarily correspond to the actual operating time of the machine 10. Indeed, it may happen that one or more tools 12 need to be loaded, if the space available in the tool magazine does not allow it, certain tools to be loaded will have to be interchanged with the tools not being used by the operation or having already been used so that all of the tool sequences can be carried out. As indicated previously, the actual loading state of the compartments 16 of the or each machine 10 makes it possible to know in real time the loading state, i.e. “empty” or “occupied” of a compartment 16. However, it does not make it possible to determine, on its own, whether loading and / or, where appropriate, replacement of tool(s) 12 is to be carried out.

[0051] In this regard, the loading method 100 according to the invention compares, during a comparison step d), the actual loading state of the compartments 16 obtained in step a) with an expected loading state of the compartments 16. The expected loading state of the compartments 16 indicates the loading state in which a compartment 16 of the tool loading module 14 must be in order to be able to carry out the remaining tooling sequences, these remaining sequences being provided by the progress state of the tooling sequences to be carried out by the machine 10. The expected loading state indicates the compartment(s) 16 which must be “occupied” so that the machine 10 can implement the remaining tool sequence(s).

[0052] The control / command system 20 compares the data of the expected loading state with those it receives in real time of the actual loading state of the compartments and if the actual loading state of the compartments 16 differs from the expected loading state, this means that at least one tool 12 is missing or to be replaced. Thus, the actual operating time of the machine 10 is less than the predicted operating time of the machine obtained during step c). Indeed, when a tool 12 is missing or to be replaced, this means that a tooling sequence cannot be implemented, and therefore that the manufacturing process of the part will be interrupted, at the time when this operation should have been carried out.

[0053] When the actual loading state of the compartments 16 differs from the expected loading state, a tool 12 must therefore be loaded, or if no more locations are available, a tool is optionally and previously unloaded before this tool 12 can be loaded (FIGS. 2a and 2b). The control / command system 20 then indicates, via the display device 30 and during a step e), one or more tools 12 to be loaded into the loading module 14 and, optionally, to be unloaded from the loading module 14, so that the actual operating time of the machine 10 corresponds to the operating time predicted in step c). The control / command system 20 then displays, optionally, during a display step f), the operating time of the machine 10 on the display device 30.

[0054] The loading method 100 according to the invention therefore makes it possible to prevent situations where the machine 10 is stopped during the process of manufacturing, assembly, repair, etc. of the part by indicating to the operator O when one or more tools 12 must be loaded into the tool loading module 14. Therefore, the operator O performs the actions necessary for all the sequences of the program to take place. The loading method 100 according to the invention thus makes it possible to increase the actual operating time, i.e. the actual autonomy, of the machine 10 in comparison with a case where the operator O would only be informed of a loading fault of a tool 12 after the interruption of the manufacturing, assembly, repair, etc. process of the part and the subsequent stopping of the machine. It therefore makes it possible to avoid losing machine activity time, which makes it possible to maximize the availability of the machine.

[0055] The loading method 100 according to the invention also makes it possible to manage the manual actions expected by the manufacturing process and indicated in the DIAG diagram and simogram. The control / command system 20 takes charge of the analysis of the necessary manual actions and translates them into a dated schedule of future manual actions. The display device 30 indicates to the operator O the upcoming manual actions as well as their nature.

[0056] This can include all types of manual interventions that the process requires to produce the part in its entirety, for example, measuring, chip removal, visual inspection, etc.

[0057] It is also possible to provide, after the implementation of step e), to indicate one or more actions to be carried out by the operator on the machine.

[0058] Also, the operator O has a duration per action defined in the process to produce the part. Thanks to the display device 30, the operator O is informed in advance of the actions to be carried out in order to prepare for them and limit his interaction time with the machine 10.

[0059] If the operator O exceeds the expected time to perform the manual action, then the actual operating time of the machine 10 will be greater than the predicted operating time.

[0060] The loading method 100 according to the invention allows the actual operating time of the machine 10 to be equal to or less than the predicted operating time to carry out the complete process of manufacturing the part, and to inform the operator.

[0061] Furthermore, this allows the operator O to better manage the organization of his various tasks because he can anticipate the tasks to be carried out. As soon as he becomes aware of an anomaly on a machine, in particular a tool 12 / tools 12 to be loaded, and optionally unloaded, he can organize his tasks so as to intervene before the shutdown of the machine 10 concerned, at any time preceding the tooling sequence which could not be carried out without changing the tool 12.

[0062] Furthermore, the estimation of the intervention hours of operator O is based on the theoretical durations of the operation, the latter being adjusted according to the actual durations of the sequences of the operation in order to be in phase with reality. In this regard, the theoretical durations of the operation are calculated upstream of production.

[0063] At each instant of the loading method 100, it is therefore possible to know when one or more tools 12 must be loaded into one or more compartments 16. Loading may have to be carried out because the tool 12 is absent or missing from the compartment 16. Loading may also have to be carried out because the tool 12 currently present in the compartment concerned is defective or worn following previous use. Preferably, the control / command system 20 makes it possible to determine the location of the compartment(s) 16 which must be loaded. In this case, it is advantageous for the actual loading status of the compartments 16 to indicate the number of the compartment(s) 16 which must be loaded.

[0064] At this stage, it can undoubtedly be specified that the method 100 according to the invention can comprise, after the comparison step d) and before the step e) of indicating the tool(s) to be loaded into the loading module, a step of predicting the date and / or time of future manual interventions to be carried out by the operator on the machine according to the progress of the manufacturing. This allows the operator to better organize his various tasks and also allows him to better prepare the machine 10 for the next uses.

[0065] Advantageously, the display device 30 collects data on the actual loading state of the compartments 16, the display device 30 being configured to display in a differentiated manner an empty compartment 16 and a compartment 16 occupied by a tool 12. In this particular embodiment, the display device 30 being configured to collect the data of the actual loading state of the compartments 16, it makes it possible to display, in addition to the predicted operating time, the compartments 16 which are empty and the compartments 16 which are occupied. The display device 30 can collect the data of the actual loading state of the compartments directly from the tool loading module 14 or indirectly from the control / command system 20.

[0066] The display device 30 can advantageously be configured to associate a symbol of given color and shape with each of these states of the compartments 16 so that in real time, the operator O can know the actual loading state of the compartments 16 from a distance and quickly. The dimensions of the symbols can be chosen so that the operator O can visualize this from a few meters, preferably at most 8 to 10 meters. The color of the symbol associated with an “empty state” of a compartment 16 can advantageously be very different from the color of the symbol associated with an “occupied state” of a compartment 16. In other words, it is advantageous for the symbol associated with the “empty state” of a compartment 16 and the symbol associated with the “occupied state” of a compartment to have different shades.

[0067] According to a preferred implementation, the control / command system 20 comprises a synchronization module 26 configured to update the data from the collection steps a) and b) and the predicted operating time obtained in step c) according to the expected loading state, preferably provided that the manual actions are carried out within the times defined by the process. Thus, the data collected in steps a) and b) are automatically processed by the control / command system 20, which makes it possible to know the predicted operating time instantly and therefore in real time.Preferably, if the operator O performs a manual action in a time greater than the duration set by the process, then this impacts the predicted operating time instantly and therefore in real time, operating time which is then increased by the difference between the time defined in the process for the execution of the manual action and the time actually carried out by the operator O. The subsequent display by the display device 30 corresponds to the real situation of the machine 10. .

[0068] In this regard, the loading method 100 preferably comprises a step 160 of modifying the progress of the tooling sequences to be carried out by the machine 10 based on a result of the comparison step d) and the actual durations of the manual actions already carried out. This step is advantageously implemented by means of the synchronization module 26.

[0069] During a step B) of the method 100, if the actual loading state of the compartments 16 differs from the expected loading state, at least one tool 12 is loaded into one of the compartments 16 of the loading module 14 according to a result of the comparison step d). In the exemplary embodiment of [Fig. 2a], a loading module 14 can be seen with several empty compartments 16, before loading the tools 12 while [Fig. 2b] illustrates the loading module 14 after loading the tools 12. Optionally, prior to the loading step B), at least one tool 12 is unloaded C) from one of the compartments 16 of the loading module 14 according to the result of the comparison step d) of the loading method 100 as described previously. From then on, the loading of step B) can be carried out in the compartment (16) left free following the unloading step C).This allows, among other things, to have optimal use of the compartments 16. .

[0070] It is possible to produce a part by means of at least one tool 12 of the loading module 14. The production of the part may for example consist of the manufacture of the part, the assembly or the repair of the part. Several successive operations may be necessary to complete the manufacture of the part. This production step may be implemented after the last step of the loading method 100.

[0071] The configurations shown in the cited figures are only possible examples, in no way limiting, of the invention which on the contrary encompasses the variants of forms and designs within the reach of those skilled in the art.

Claims

Claims

1. Method (100) for loading at least one tool (12) into at least one machine (10), the loading method (100) comprising: A) performing predictive supervision of said at least one machine (10), the machine (10) comprising a plurality of tools (12) for implementing production operations, at least one tool loading module (14) comprising a plurality of compartments (16) configured to receive said tools (12), an information display device (30) and at least one control / command system (20) connected to the tool loading module (14) and to the information display device (30), the control / command system (20) being configured to implement by computer the following steps: a) collecting data on an actual loading state of the compartments (16), b) collecting data on a progress state of a tooling sequence to be carried out by the machine (10),c) predicting an operating time of the machine (10) from at least one model (M) implemented in said control / command system (20) and from the data obtained in steps a) and b), d) comparing the actual loading state of the compartments (16) obtained in step a) with an expected loading state, and if the actual loading state of the compartments (16) differs from the expected loading state, and an actual operating time of the machine is less than the predicted operating time of the machine, e) indicating via the display device (30) one or more tools (12) to be loaded into the loading module (14) so ​​that the actual operating time of the machine corresponds to the operating time predicted in step c), B) when the actual loading state of the compartments (16) differs from the expected loading state,loading at least one tool (12) into one of the compartments (16) of the loading module (14) according to a result of comparison step d).,

2. A method (100) of loading according to claim 1, wherein the display device (30) collects data on the actual loading status of the compartments (16), the display device (30) being configured to differentiatedly display a compartment (16) empty and a compartment (16) occupied by a tool (12).

3. A charging method (100) according to any one of claims 1 or 2, wherein the control / command system (20) comprises a synchronization module (26) configured to update the data from collection steps a) and b) and the predicted operating time obtained in step c) according to the expected charging state.

4. Loading method (100) according to claim 3, further comprising a step (160) of modifying the progress state (EA) of a tooling sequence to be carried out by the machine (10) from a result of the comparison step d).

5. Method (100) of loading according to any one of claims 1 to 4, in which the control / command system (20) comprises a module (28) for editing the model (M) implemented in said control / command system (20).

6. A loading method (100) according to any one of claims 1 to 5, wherein the loading module (14) comprises more than 30 compartments (16).

7. Method (100) of loading according to any one of claims 1 to 6, comprising, prior to step B) of loading, a step C) of unloading at least one tool (12) from one of the compartments (16) of the loading module (14) according to the result of step d) of comparison, the loading of step B) then being carried out in the compartment (16) left free following the unloading step.

8. A loading method (100) according to any one of claims 1 to 7, wherein the part is a part of an aircraft.

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