A control method and system for a polishing machine for a watch case

Abstract

The present invention relates to the technical field of watch case polishing machine control, and provides a polishing machine control method and system for watch cases. The method comprises: establishing a model in which the watch case temperature changes with the polishing process during polishing, comparing standard temperature data corresponding to the model with the monitored current temperature data during real-time polishing, judging whether there are polishing defects that need to be repaired based on the temperature data difference, constructing repair data based on the temperature difference data, controlling the polishing machine to perform repairs, identifying the existence of defects during the polishing process, and controlling the polishing machine to perform defect repairs during one polishing process, without the need for secondary rework, thereby improving the polishing efficiency and quality of the polishing machine.

Description

Technical Field

[0001] The present invention relates to the technical field of watch case polishing machine control, and in particular to a polishing machine control method and system for watch cases. Background Art

[0002] In the existing technology, quality inspection is only carried out by manual visual inspection, surface roughness meter scanning, etc. after the watch case is polished. After the polishing defects are identified, secondary rework and repair are carried out. Not only is the process complicated and time-consuming, but the control data of the polishing machine for rework and repair also needs to be reset, which is inefficient. Summary of the Invention

[0003] The present invention provides a control method for a watch case polisher, which is used to solve the problem of low efficiency in defect identification and repairing of watch case polishing in the prior art.

[0004] A first aspect of the present invention provides a method for controlling a watch case polisher, comprising:

[0005] Obtain historical data on temperature, process, and ambient temperature during case polishing, and establish a relationship model between the case temperature and the polishing process under the influence of ambient temperature.

[0006] Obtain the current ambient temperature and substitute it into the relationship model to obtain the standard temperature rise data of the watch case; monitor the current polishing temperature of the watch case in real time, record the relationship between the current temperature of the watch case and the polishing process, and obtain the current temperature rise data of the watch case;

[0007] The standard temperature rise data of the watch case is compared with the current temperature rise data of the watch case to determine whether the overall case defect exceeds the repair threshold; if so, the defect repair data corresponding to the overall temperature difference is identified based on the temperature rise data difference and sent to the grinder.

[0008] Optionally, the method further includes: obtaining historical data of defects of the watch case, and identifying the relationship between defect characteristics and temperature change characteristics based on corresponding historical temperature data;

[0009] The method of identifying the defect repair data corresponding to the overall temperature difference based on the temperature rise data difference is specifically as follows: calculating the temperature rise time length and temperature rise rate of the difference between the standard temperature rise data of the watch case and the current temperature rise data of the watch case to obtain the temperature change characteristics, obtaining the defect characteristics based on the relationship between the defect characteristics and the temperature change characteristics, and identifying the corresponding defect repair data based on the defect characteristics according to the preset database.

[0010] Optionally, after obtaining the temperature change characteristics, the method further includes:

[0011] According to the difference time interval between the standard temperature rise data of the watch case and the current temperature rise data of the watch case, the grinding machine control coordinates corresponding to the difference time zone in the grinding process are identified and added to the defect repair data.

[0012] A second aspect of the present application provides a control system for a watch case polisher, comprising:

[0013] A relationship model building module is used to obtain the temperature history data, process history data and ambient temperature history data of the watch case polishing, and to build a relationship model of the change of the watch case temperature with the polishing process under the influence of the ambient temperature;

[0014] The data acquisition module is used to obtain the current ambient temperature and substitute the current ambient temperature into the relationship model to obtain the standard temperature rise data of the watch case; monitor the current polishing temperature of the watch case in real time, record the relationship between the current temperature of the watch case and the polishing process, and obtain the current temperature rise data of the watch case;

[0015] The grinder control module is used to compare the standard temperature rise data of the watch case with the current temperature rise data of the watch case to determine whether the overall case defect exceeds the repair threshold; if so, the defect repair data corresponding to the overall temperature difference is identified based on the temperature rise data difference and sent to the grinder.

[0016] Optionally, the relationship model building module further includes: acquiring historical data of watch case defects, and identifying the relationship between defect characteristics and temperature change characteristics based on corresponding historical temperature data;

[0017] In the grinder control module, the defect repair data corresponding to the overall temperature difference is identified based on the temperature rise data difference. Specifically, the temperature rise time length and temperature rise rate of the difference between the standard temperature rise data of the watch case and the current temperature rise data of the watch case are calculated to obtain the temperature change characteristics. The defect characteristics are obtained based on the relationship between the defect characteristics and the temperature change characteristics. The corresponding defect repair data is identified based on the defect characteristics according to the preset database.

[0018] Optionally, after obtaining the temperature change characteristics, the following steps are further included:

[0019] According to the difference time interval between the standard temperature rise data of the watch case and the current temperature rise data of the watch case, the grinding machine control coordinates corresponding to the difference time zone in the grinding process are identified and added to the defect repair data.

[0020] A third aspect of the present application provides a method and device for controlling a watch case polisher, the device comprising a processor and a memory:

[0021] The memory is used to store program code and transmit the program code to the processor;

[0022] The processor is used to execute the method for controlling a watch case polisher according to any one of the first aspects of the present invention according to the instructions in the program code.

[0023] A fourth aspect of the present application provides a computer-readable storage medium, which is used to store program code, and the program code is used to execute a method for controlling a watch case grinder as described in any one of the first aspects of the present invention.

[0024] It can be seen from the above technical solution that the present invention has the following advantages: a model is established in which the temperature of the watch case changes with the polishing process during polishing, and the standard temperature data corresponding to the model is compared with the monitored current temperature data during real-time polishing. The temperature data difference is used to determine whether there are polishing defects that need to be repaired, and the repair data is constructed based on the temperature difference data to control the polishing machine for repair. The existence of defects can be identified during the polishing process, and the polishing machine can be controlled to repair the defects in one polishing process without the need for secondary rework, thereby improving the polishing efficiency and quality of the polishing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 is a flow chart of a method for controlling a polishing machine for a watch case;

[0027] Figure 2 This is a structural diagram of a control system for a watch case polishing machine. DETAILED DESCRIPTION

[0028] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] The present invention provides a control method for a watch case polisher, which is used to solve the problem of low efficiency in defect identification and repairing of watch case polishing in the prior art.

[0030] See also Figure 1 , Figure 1 This is a first flow chart of a method for controlling a watch case polisher provided by an embodiment of the present invention.

[0031] S100, obtaining historical temperature data, process data, and ambient temperature data of the watch case during polishing, and establishing a relationship model of how the watch case temperature changes with the polishing process under the influence of ambient temperature;

[0032] It should be noted that during the polishing process of the watch case, the temperature of the watch case can be monitored in real time by infrared temperature control equipment or other temperature measuring equipment. At the same time, the temperature of the grinding wheel of the grinder can also be detected. The ambient temperature can be obtained according to the thermometer in the grinder workshop. All temperature data related to the watch case temperature can be obtained. The temperature history data can be expressed as a function curve of the relationship between temperature and time. The ambient temperature will not change significantly in a short period of time. The ambient temperature will affect the initial polishing temperature of the watch case and the grinding wheel.

[0033] The case grinding path is planned in advance, and the grinder grinds the case along the grinding path. The grinding time and the corresponding polished parts of the case are all available in the path planning. Data such as the feed pressure and contact angle of the six-axis robot arm are pre-set. As the grinding wheel of the grinder moves along the path, friction heat accumulates during the grinding process and is reflected as a continuous temperature rise on the case made of metal with good thermal conductivity. As the temperature of the case and the grinding wheel increases, the grinding effect and the heating effect also change. Therefore, a correlation between the grinding process and the case temperature can be established. In subsequent grinding, under the same case and the same planned grinding path, this correlation can be used as a reference. When data such as the grinding wheel speed and ambient temperature are the same, the temperature change should also be consistent, which can directly reflect the temperature change that should occur at a certain point in the grinding process.

[0034] S200, obtaining the current ambient temperature, substituting the current ambient temperature into the relationship model to obtain the standard temperature rise data of the watch case; monitoring the current polishing temperature of the watch case in real time, recording the relationship between the current temperature of the watch case and the polishing progress, and obtaining the current temperature rise data of the watch case;

[0035] It should be noted that the relationship model of the change of case temperature with the grinding process in the above steps reflects the standard change of the case temperature predicted with the progress under the initial conditions of the case and grinding wheel temperature at different ambient temperatures and without grinding defects. There are corresponding standard changes under different current ambient temperatures. By substituting the current ambient temperature into the relationship model of the change of case temperature with the grinding process, the standard temperature rise data of the case is obtained, which can be specifically expressed as a function curve of the change of case temperature with time; during the grinding process, infrared temperature measurement or temperature sensor is used to monitor the case temperature in real time, and the monitoring area should not be the contact part between the grinding wheel and the case, as direct contact parts are prone to large temperature errors; in the process of the grinder grinding the case according to the preset path planning, the case temperature is monitored, and the start time point of the path planning is used as the starting point of the temperature monitoring time. In the relationship between the recorded current case temperature and the grinding process, time corresponds to the temperature change and the polished part of the case, and the current temperature rise data of the case is expressed as a function curve of the real-time temperature of the case changing with time.

[0036] S300, compare the standard temperature rise data of the watch case with the current temperature rise data of the watch case to determine whether the overall watch case defect exceeds the repair threshold; if so, identify the defect repair data corresponding to the overall temperature difference based on the temperature rise data difference and send it to the grinder.

[0037] It should be noted that the standard temperature rise data of the watch case and the current temperature rise data of the watch case are function curves, and the time line corresponds to each other. The area enclosed by the two curves and the vertical axis corresponding to the start and end points of the time can be used to identify overall case defects. The speed of heat generation is related to the polishing defects. If there are no polishing defects, the standard temperature and the current temperature should be consistent. The more polishing defects there are, the higher the degree of unevenness and the greater the number of scratches, the greater the difference in heat generation, and the greater the temperature difference at the same time point. Therefore, the degree of existing defects in the watch case can be judged first based on the enclosed area. When the area is small, that is, when the defect is small, it can be regarded as a defect that is not visible to the naked eye and does not require repair and polishing. When the area exceeds the area threshold, that is, when the overall case defect exceeds the repair threshold, it can be regarded as requiring corrective polishing.

[0038] When grinding correction is required, the temperature rise data difference can be obtained based on the area of ​​the area enclosed by the curve. The larger the area, the deeper the repair required. The starting point and end point of the area can be obtained based on the time point of the intersection of the two curves in the enclosed area. The part that needs to be repaired is determined by the time corresponding to the path planning. The repair degree and repair part information constitute a new grinding path, which is sent to the grinder as defect repair data to repair and grind the watch case.

[0039] In this embodiment, a model is established in which the temperature of the watch case changes with the polishing process during polishing. The standard temperature data corresponding to the model is compared with the monitored current temperature data during real-time polishing. The temperature data difference is used to determine whether there are polishing defects that need to be repaired. The repair data is constructed based on the temperature difference data, and the grinder is controlled to perform repairs. The existence of defects can be identified during the polishing process, and the grinder can be controlled to repair the defects in one polishing process without the need for secondary rework, thereby improving the polishing efficiency and quality of the grinder.

[0040] The above is a detailed description of the first embodiment of a method for controlling a watch case grinder provided by the present application. The following is a detailed description of the second embodiment of a method for controlling a watch case grinder provided by the present application.

[0041] In this embodiment, a method for controlling a watch case polisher is further provided. In the aforementioned step S100, the method further includes: acquiring historical data of defects of the watch case, and identifying the relationship between defect characteristics and temperature change characteristics based on the corresponding historical temperature data;

[0042] In the aforementioned step S300, the identification of defect repair data corresponding to the overall temperature difference based on the temperature rise data difference specifically includes: calculating the temperature rise time length and temperature rise rate of the difference between the standard temperature rise data of the watch case and the current temperature rise data of the watch case to obtain a temperature change characteristic, obtaining a defect feature based on the relationship between the defect feature and the temperature change feature, and identifying the corresponding defect repair data based on the defect feature according to a preset database;

[0043] It should be noted that when establishing a relationship model of the case temperature changing with the polishing process under the influence of ambient temperature, the acquired temperature history data are all considered to be without case defects. In this embodiment, data when polishing defects exist and parameters of polishing defects subsequently identified by traditional methods, such as the degree of uneven roughness difference or the length and depth of scratches, are also acquired. By comparing the historical temperature data that produced the case defects with the standard temperature data without case defects, the characteristics of the area enclosed by the identification curve are identified to obtain the relationship between the defect characteristics and the temperature change characteristics. For example, when a part of the area is unevenly polished, the temperature rise rate of the current temperature rise curve is greater than the standard temperature rise curve, and is less than the temperature rise rate of the temperature rise curve of the scratch defect. The intersection of the two curves of the standard temperature rise curve of the case and the current temperature rise curve of the case corresponding to the uneven polishing of the area corresponds to the uneven polishing time period of the area. The temperature rise time of the time period is longer than the temperature rise time of the scratch. Since the scratch defect is generated in a short time and the friction of the scratch defect is more intense than uneven grinding, the temperature rise rate of the temperature rise curve is the highest, and the scratch time period of the intersection of the curve corresponding to the scratch is shorter. The defect can be identified according to the characteristics of the temperature rise rate and the temperature rise time, and the temperature rise rate threshold and the time length threshold are set according to the actual case material; and the degree of the defect is judged according to the specific temperature rise rate, and various types of defects and corresponding repair methods are pre-stored in a preset database. For example, the uneven roughness difference is judged according to the temperature rise rate of the uneven grinding defect in the area, and the grinding wheel diameter, rotation speed and robot arm pressure when repairing the roughness difference are selected in the database accordingly, and the defect repair parameters can be obtained, and the defect repair data are sent to the grinder for grinding;

[0044] Furthermore, after obtaining the temperature change characteristics, the method further includes: identifying the grinding machine control coordinates corresponding to the difference time zone during the grinding process according to the difference time zone between the standard temperature rise data of the watch case and the current temperature rise data of the watch case, and adding the coordinates to the defect repair data;

[0045] It should be noted that the intersection of each pair of curves in the area enclosed by the standard temperature rise data of the case and the current temperature rise data of the case, the corresponding time coordinates can obtain a difference time interval, which is also the start and end time interval of a grinding defect. By identifying the corresponding path position of the difference time interval in path planning, as well as the robotic arm control coordinates and movement trajectory of the grinder, the position that should be repaired when repairing the defect in the above steps can be obtained and added to the defect repair data.

[0046] The above is a detailed description of a method for controlling a grinder for a watch case according to the first aspect of the present application. The following is a detailed description of an embodiment of a control system for a grinder for a watch case according to the second aspect of the present application.

[0047] See also Figure 2 , Figure 2This embodiment provides a control system for a watch case polisher, comprising:

[0048] A relationship model building module 10 is used to obtain historical temperature data, process data, and ambient temperature data of the watch case during polishing, and to build a relationship model of the change in watch case temperature with the polishing process under the influence of ambient temperature;

[0049] The data acquisition module 20 is used to obtain the current ambient temperature and substitute the current ambient temperature into the relationship model to obtain the standard temperature rise data of the watch case; monitor the current polishing temperature of the watch case in real time, record the relationship between the current temperature of the watch case and the polishing progress, and obtain the current temperature rise data of the watch case;

[0050] The grinder control module 30 is used to compare the standard temperature rise data of the watch case with the current temperature rise data of the watch case to determine whether the overall watch case defect exceeds the repair threshold; if so, the defect repair data corresponding to the overall temperature difference is identified based on the temperature rise data difference and sent to the grinder.

[0051] Furthermore, the relationship model building module 10 further includes: acquiring historical data of defects of the watch case, and identifying the relationship between defect characteristics and temperature change characteristics based on corresponding historical temperature data;

[0052] In the grinder control module 30, the defect repair data corresponding to the overall temperature difference is identified based on the temperature rise data difference. Specifically, the temperature rise time length and temperature rise rate of the difference between the standard temperature rise data of the case and the current temperature rise data of the case are calculated to obtain the temperature change characteristics. The defect characteristics are obtained based on the relationship between the defect characteristics and the temperature change characteristics. The corresponding defect repair data are identified based on the defect characteristics according to the preset database.

[0053] Furthermore, after obtaining the temperature change characteristics, the grinder control module 30 further includes:

[0054] According to the difference time interval between the standard temperature rise data of the watch case and the current temperature rise data of the watch case, the grinding machine control coordinates corresponding to the difference time zone in the grinding process are identified and added to the defect repair data.

[0055] The third aspect of the present application also provides a method and device for controlling a grinder for a watch case, comprising a processor and a memory: wherein the memory is used to store program code and transmit the program code to the processor; the processor is used to execute the above-mentioned method for controlling a grinder for a watch case according to the instructions in the program code.

[0056] A fourth aspect of the present application provides a computer-readable storage medium, characterized in that the computer-readable storage medium is used to store program code, and the program code is used to execute the above-mentioned method for controlling a polishing machine for a watch case.

[0057] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described devices and equipment can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0058] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0059] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0060] In addition, the functional units in the various embodiments of the present invention may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0061] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the portion that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes various media that can store program code, such as a USB flash drive, a mobile hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0062] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for controlling a watch case polishing machine, characterized in that include: S100, obtaining historical temperature data, process data, and ambient temperature data of the watch case during polishing, and establishing a relationship model of how the watch case temperature changes with the polishing process under the influence of ambient temperature; S200, obtaining the current ambient temperature, substituting the current ambient temperature into the relationship model to obtain the standard temperature rise data of the watch case; Monitor the current case polishing temperature in real time, record the relationship between the current case temperature and the polishing process, and obtain the current case temperature rise data; S300, comparing the standard temperature rise data of the watch case with the current temperature rise data of the watch case to determine whether the overall watch case defect exceeds a repair threshold; If so, the defect repair data corresponding to the overall temperature difference is identified based on the temperature rise data difference and sent to the grinder; The S100 further includes: acquiring historical data of defects of the watch case, and identifying the relationship between defect characteristics and temperature change characteristics according to the corresponding historical temperature data; The method of identifying the defect repair data corresponding to the overall temperature difference based on the temperature rise data difference specifically comprises: calculating the temperature rise time length and temperature rise rate of the difference between the standard temperature rise data of the watch case and the current temperature rise data of the watch case to obtain the temperature change characteristics, obtaining the defect characteristics based on the relationship between the defect characteristics and the temperature change characteristics, and identifying the corresponding defect repair data based on the defect characteristics according to the preset database; After obtaining the temperature change characteristics, the method further includes: According to the difference time interval between the standard temperature rise data of the watch case and the current temperature rise data of the watch case, the grinding machine control coordinates corresponding to the difference time zone in the grinding process are identified and added to the defect repair data.

2. A control system for a watch case polisher, characterized in that: include: A relationship model building module is used to obtain the temperature history data, process history data and ambient temperature history data of the watch case polishing, and to build a relationship model of the change of the watch case temperature with the polishing process under the influence of the ambient temperature; The data acquisition module is used to obtain the current ambient temperature and substitute the current ambient temperature into the relationship model to obtain the standard temperature rise data of the case; Monitor the current case polishing temperature in real time, record the relationship between the current case temperature and the polishing process, and obtain the current case temperature rise data; The grinding machine control module is used to compare the standard temperature rise data of the watch case with the current temperature rise data of the watch case to determine whether the overall watch case defect exceeds the repair threshold; If so, the defect repair data corresponding to the overall temperature difference is identified based on the temperature rise data difference and sent to the grinder; The relationship model building module further includes: acquiring historical data of watch case defects, and identifying the relationship between defect characteristics and temperature change characteristics based on corresponding temperature historical data; In the grinding machine control module, identifying defect repair data corresponding to the overall temperature difference based on the temperature rise data difference specifically comprises: calculating the temperature rise time length and temperature rise rate of the difference between the standard temperature rise data of the watch case and the current temperature rise data of the watch case to obtain a temperature change feature, obtaining a defect feature based on the relationship between the defect feature and the temperature change feature, and identifying the corresponding defect repair data based on the defect feature according to a preset database; In the grinding machine control module, after obtaining the temperature change characteristics, the following steps are further included: According to the difference time interval between the standard temperature rise data of the watch case and the current temperature rise data of the watch case, the grinding machine control coordinates corresponding to the difference time zone in the grinding process are identified and added to the defect repair data.

3. A control device for a watch case polisher, characterized in that: The device includes a processor and a memory: The memory is used to store program code and transmit the program code to the processor; The processor is configured to execute the method for controlling a watch case polishing machine according to claim 1 according to instructions in the program code.

4. A computer-readable storage medium, characterized in that The computer-readable storage medium is used to store program codes, and the program codes are used to execute the method for controlling a watch case polishing machine according to claim 1.

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