Polishing machine control method and system for watchcase

Abstract

The invention relates to the technical field of watchcase grinding machine control, and provides a watchcase grinding machine control method and system, and the method comprises the steps: building a model that the temperature of a watchcase changes along with the grinding process during the grinding of the watchcase, and comparing the standard temperature data corresponding to the model with the monitored current temperature data during the real-time grinding, according to the method, the temperature data difference is used for judging whether polishing defects needing to be repaired exist or not, repairing data are constructed according to the temperature difference data, the polishing machine is controlled to conduct repairing, the defects can be recognized in the polishing process, the polishing machine can be controlled to conduct defect repairing in the primary polishing process, secondary rework is not needed, and the cost is reduced. And the grinding efficiency and quality of the grinding machine are improved.

Description

Technical Field

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

[0002] In the prior art, after the watch case grinding is completed, manual visual inspection, surface roughness meter scanning and other methods are used for quality inspection. After identifying the grinding defects, secondary rework and repair are carried out. Not only is the process complex and time-consuming, but the grinding machine control data for rework and repair also needs to be reset, resulting in low efficiency. Summary of the Invention

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

[0004] In a first aspect of the present invention, a grinding machine control method for watch cases is provided, including: Obtain the temperature history data, process history data and ambient temperature history data of watch case grinding, and establish a relationship model of the change of watch case temperature with the grinding process under the influence of ambient temperature; Obtain the current ambient temperature, substitute the current ambient temperature into the relationship model to obtain the standard temperature rise data of the watch case; monitor the temperature of the current watch case grinding in real time, record the relationship between the current temperature of the watch case and the grinding process, and obtain the current temperature rise data of the watch case; 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 according to the temperature rise data difference, and send it to the grinding machine.

[0005] Optionally, it further includes: obtaining the watch case defect history data, and identifying the relationship between the defect characteristics and the temperature change characteristics according to the corresponding temperature history data; The identifying the defect repair data corresponding to the overall temperature difference according to the temperature rise data difference is specifically: 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 according to the preset database with the defect characteristics.

[0006] Optionally, after obtaining the temperature change characteristics, it 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, identify the grinding machine control coordinates corresponding to the difference time zone in the grinding process, and add them to the defect repair data.

[0007] In a second aspect of the present application, a grinding machine control system for watch cases is provided, including: A relational model establishment module, configured to obtain the temperature history data, process history data, and ambient temperature history data of the watch case polishing, and establish a relational model of the change of the watch case temperature with the polishing process under the influence of the ambient temperature; A data acquisition module, configured to obtain the current ambient temperature, substitute the current ambient temperature into the relational model to obtain the standard temperature rise data of the watch case; monitor the temperature of the current watch case polishing 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; A polishing machine control module, configured 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, identify the defect repair data corresponding to the overall temperature difference according to the temperature rise data difference, and send it to the polishing machine.

[0008] Optionally, in the relational model establishment module, it further includes: obtaining the watch case defect history data, and identifying the relationship between the defect characteristics and the temperature change characteristics according to the corresponding temperature history data; In the polishing machine control module, identifying the defect repair data corresponding to the overall temperature difference according to 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 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 according to the preset database based on the defect characteristics.

[0009] Optionally, after obtaining the temperature change characteristics, it further includes: Identifying the polishing machine control coordinates corresponding to the difference time zone in the polishing process 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, and adding them to the defect repair data.

[0010] The third aspect of the present application provides a polishing machine control method device for a watch case, and the device includes a processor and a memory: The memory is used to store program codes and transmit the program codes to the processor; The processor is used to execute the polishing machine control method according to any one of the first aspects of the present invention according to the instructions in the program codes.

[0011] The fourth aspect of the present application provides a computer-readable storage medium, and the computer-readable storage medium is used to store program codes, and the program codes are used to execute the polishing machine control method according to any one of the first aspects of the present invention.

[0012] As can be seen from the above technical solutions, the present invention has the following advantages: establishing a model of the change of the case temperature with the grinding process during case grinding, comparing the standard temperature data corresponding to the model with the currently monitored temperature data during real-time grinding, judging whether there are grinding defects that need to be repaired based on the temperature data difference, constructing repair data according to the temperature difference data, and controlling the grinding machine to perform repairs. During the grinding process, defects can be identified, and the grinding machine can be controlled to repair the defects during one grinding process, without secondary rework, improving the grinding efficiency and quality of the grinding machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0014] Figure 1 It is a flowchart of a control method for a grinding machine for a watch case; Figure 2 It is a structure diagram of a control system for a grinding machine for a watch case. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] In order to make the invention purpose, features, and advantages of the present invention more obvious and understandable, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the following described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0016] The present invention provides a control method for a grinding machine for a watch case, which is used to solve the problem of low defect identification and repair efficiency in watch case grinding in the prior art.

[0017] Please refer to Figure 1 , Figure 1 It is the first flowchart of a control method for a grinding machine for a watch case provided by an embodiment of the present invention.

[0018] S100, obtaining the temperature history data, process history data, and ambient temperature history data of watch case grinding, and establishing a relationship model of the change of the case temperature with the grinding process under the influence of the ambient temperature; It should be noted that during the process of case polishing, the temperature of the case can be monitored in real time through an infrared temperature control device or other temperature measuring devices. At the same time, the temperature of the grinding wheel of the grinding machine can also be detected, and the ambient temperature can be obtained according to the thermometer in the grinding machine workshop to obtain all temperature data related to the case temperature. The temperature history data can be represented as a function curve of temperature changing with time, and the ambient temperature will not change significantly in a short period of time. The ambient temperature will affect the initial polishing temperature of the case and the grinding wheel. The polishing path of the case will be pre-planned, and the grinding machine polishes the case along the polishing path. The polishing time and the corresponding polished parts of the case can be obtained in the path planning, and data such as the feed pressure and contact angle of a six-axis robotic arm are preset; as the grinding wheel of the grinding machine travels along the path, frictional heat will accumulate continuously during the polishing process and will be reflected as a continuous increase in temperature on the case with better thermal conductivity of the material metal. Moreover, as the temperatures of the case and the grinding wheel increase, the polishing effect will also change, and the heating effect will also change. Therefore, a correlation relationship between the polishing process and the case temperature can be established; during subsequent polishing, under the same case and the same planned polishing path, this correlation relationship can be used for 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 time point in the polishing process. S200, obtain the current ambient temperature, substitute the current ambient temperature into the relationship model to obtain the standard temperature rise data of the case; monitor the temperature of the current case polishing in real time, record the relationship between the current temperature of the case and the polishing process, and obtain the current temperature rise data of the case. It should be noted that the relationship model of the case temperature changing with the polishing process in the foregoing steps reflects the standard change of the case temperature predicted with the progress under the initial states of the case and grinding wheel temperatures at different ambient temperatures and without polishing defects. At different current ambient temperatures, there are corresponding standard changes. By substituting the current ambient temperature into the relationship model of the case temperature changing with the polishing process, the standard temperature rise data of the case can be obtained. This data can be specifically represented as a function curve of the case temperature changing with time; during the polishing process, infrared temperature measurement or temperature sensors are 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 large temperature errors are likely to occur at the direct contact part; during the process of the grinding machine polishing the case according to the preset path planning, monitor the case temperature, take the start time point of the path planning as the starting point of the temperature monitoring time, and in the recorded relationship between the current temperature of the case and the polishing process, the time corresponds to the temperature change and the polished parts of the case. The current temperature rise data of the case is represented as a function curve of the real-time temperature of the case changing with time.

[0019] In 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 according to the temperature rise data difference and send it to the grinding machine.

[0020] 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 respectively function curves and the time lines correspond to each other. The overall watch case defect can be identified by the area enclosed by the two curves and the vertical axes corresponding to the start and end points of the time line. The speed of heat generation is related to the grinding defect. If there is no grinding defect, the standard temperature and the current temperature should be the same. The more grinding defects there are, the higher the degree of non-uniformity and the more scratch numbers there are, the greater the heat difference generated, and the greater the temperature difference at the same time point. Therefore, the existing defect degree of the watch case can be judged according to the enclosed area first. When the area is small, that is, when the defect is small, it can be regarded as a defect that cannot be seen by the naked eye and does not need to be repaired and ground. When the area exceeds the area threshold, that is, when the overall watch case defect exceeds the repair threshold, it can be regarded as needing to be corrected and ground. When grinding and correction are needed, the temperature rise data difference can be obtained according to the area of the region enclosed by the curves. The larger the area, the deeper the degree of repair required. And the start point and end point of the region can be obtained according to the time point of the intersection of the two curves of the enclosed region. The part to be repaired is determined according to the time corresponding to the path planning. The repair degree and the repair part information are formed into a new grinding path and sent to the grinding machine as defect repair data to repair and grind the watch case.

[0021] In this embodiment, by establishing a model of the watch case temperature changing with the grinding process during watch case grinding, comparing the standard temperature data corresponding to the model with the monitored current temperature data during real-time grinding, judging whether there are grinding defects that need to be repaired according to the temperature data difference, and constructing repair data according to the temperature difference data to control the grinding machine for repair. During the grinding process, the existence of defects can be identified, and the grinding machine can be controlled to repair the defects during one grinding process without secondary rework, improving the grinding efficiency and quality of the grinding machine.

[0022] The above is the detailed description of the first embodiment of a grinding machine control method for a watch case provided by this application. The following is the detailed description of the second embodiment of a grinding machine control method for a watch case provided by this application.

[0023] In this embodiment, a grinding machine control method for a watch case is further provided. In the foregoing step S100, it further includes: obtaining the historical data of the watch case defects, and identifying the relationship between the defect characteristics and the temperature change characteristics according to the corresponding historical temperature data. In the foregoing step S300, the specific method for identifying the defect repair data corresponding to the overall temperature difference according to the temperature rise data difference is as follows: calculate the temperature rise time length and the 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, obtain the defect characteristics based on the relationship between the defect characteristics and the temperature change characteristics, and identify the corresponding defect repair data according to the preset database based on the defect characteristics; It should be noted that when establishing the relationship model between the temperature of the watch case and the grinding process under the influence of the ambient temperature, all the obtained temperature history data are regarded as having no defects in the watch case. In this embodiment, data with grinding defects are also obtained, as well as the parameters of the grinding defects identified by traditional methods subsequently, such as the uneven roughness difference degree or the scratch length and depth. By comparing the historical temperature data with the watch case defects with the standard temperature data without the watch case defects, the characteristics of the area enclosed by the identification curve are used to obtain the relationship between the defect characteristics and the temperature change characteristics. For example, when the grinding in some areas is uneven, the temperature rise rate of the current temperature rise curve is greater than that of the standard temperature rise curve and less than that of the temperature rise curve with scratch defects. The intersection point of the two curves corresponding to the uneven grinding area of the watch case standard temperature rise curve and the watch case current temperature rise curve corresponds to the uneven grinding time period of the area. The temperature rise time length of this time period is longer than that of the scratch. Since the time for generating the scratch is short and the defect friction of the scratch is more intense than that of the uneven grinding, the temperature rise rate of the temperature rise curve is the highest, and the time length of the scratch time period corresponding to the curve intersection point of the scratch is short. The defects can be identified according to the characteristics of the temperature rise rate and the temperature rise time length, and the temperature rise rate threshold and the time length threshold are set according to the actual watch case material; and the defect degree is judged according to the specific temperature rise rate. Various defects and the corresponding repair methods are pre-stored in the preset database. For example, the uneven roughness difference is judged according to the temperature rise rate of the area grinding uneven defect, and the grinding wheel diameter, rotation speed and robotic arm pressure during the repair of this roughness difference are selected in the database, so that the parameters for defect repair can be obtained, and the defect repair data is formed and sent to the grinding machine for grinding; Further, after obtaining the temperature change characteristics, it further includes: identifying the grinding machine control coordinates corresponding to the difference time zone during the grinding process 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, and adding them to the defect repair data; It should be noted that the intersection points of the two curves of the area enclosed by the standard temperature rise data and the current temperature rise data of the watch case can obtain a difference time interval corresponding to the time coordinates, which is also the start and end time interval of a grinding defect. By identifying the corresponding path position, the robotic arm control coordinates and the movement trajectory of the grinding machine in the path planning for this difference time interval, the position to be repaired during the defect repair in the foregoing steps can be obtained and added to the defect repair data.

[0024] The above is a detailed description of a grinding machine control method for watch cases provided by the first aspect of this application. The following is a detailed description of an embodiment of a grinding machine control system for watch cases provided by the second aspect of this application.

[0025] Please refer to Figure 2 , Figure 2 which is a structure diagram of a grinding machine control system for watch cases. This embodiment provides a grinding machine control system for watch cases, including: A relationship model establishment module 10, configured to obtain the temperature history data, process history data, and ambient temperature history data of watch case grinding, and establish a relationship model of the change of watch case temperature with the grinding process under the influence of ambient temperature; A data acquisition module 20, configured to obtain the current ambient temperature, substitute the current ambient temperature into the relationship model to obtain the standard temperature rise data of the watch case; monitor the temperature of the current watch case grinding in real time, record the relationship between the current temperature of the watch case and the grinding process, and obtain the current temperature rise data of the watch case; A grinding machine control module 30, configured 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, identify the defect repair data corresponding to the overall temperature difference according to the temperature rise data difference, and send it to the grinding machine.

[0026] Further, in the relationship model establishment module 10, it further includes: obtaining the watch case defect history data, and identifying the relationship between the defect characteristics and the temperature change characteristics according to the corresponding temperature history data; In the grinding machine control module 30, specifically identifying the defect repair data corresponding to the overall temperature difference according to the temperature rise data difference is: 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 according to the preset database based on the defect characteristics.

[0027] Further, in the grinding machine control module 30, after obtaining the temperature change characteristics, it further includes: Identifying the grinding machine control coordinates corresponding to the difference time zone in the grinding process 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, and adding them to the defect repair data.

[0028] The third aspect of this application also provides a device for a grinding machine control method for watch cases, including 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 grinding machine control method for watch cases according to the instructions in the program code.

[0029] 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.

[0030] Those skilled in the art can 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 foregoing method embodiments and will not be elaborated herein.

[0031] In several embodiments provided by the present 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 illustrative. For example, the division of the units is only a logical function division, and there may be other division methods in actual implementation. For example, 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 displayed or discussed mutual coupling, direct coupling, or communication connection can be through some interfaces, and the indirect coupling or communication connection of devices or units can be in electrical, mechanical, or other forms.

[0032] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0033] In addition, in each embodiment of the present invention, the functional units can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

[0034] When the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), magnetic disks, or optical discs that can store program codes.

[0035] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of various embodiments of the present invention.

Claims

1. A method for controlling a polishing machine for a watch case, characterized in that include: Obtain the temperature history data, process history data and ambient temperature history data of the watch case polishing, and establish a relationship model of the watch case temperature changing with the polishing process under the influence of ambient temperature; 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 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.

2. A method for controlling a polishing machine for a watch case according to claim 1, characterized in that: Also includes: Obtain historical data of case defects, and identify the relationship between defect characteristics and temperature change characteristics based on the corresponding temperature historical data; 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 the 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 with the defect characteristics according to the preset database.

3. A method for controlling a watch case polisher according to claim 2, characterized in that: 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 control coordinates of the grinder corresponding to the difference time zone in the grinding process are identified and added to the defect repair data.

4. A control system for a polishing machine for a watch case, characterized in that: include: A relational 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 relational model of the change of the watch case temperature with the polishing process under the influence of 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 grinder control module is used to compare the standard temperature rise data of the case with the current temperature rise data of the 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.

5. A control system for a watch case polisher according to claim 4, characterized in that: The relationship model building module also includes: acquiring historical data of case defects, and identifying the relationship between defect characteristics and temperature change characteristics according to corresponding temperature historical data; 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 the 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, and the corresponding defect repair data are identified with the defect characteristics according to the preset database.

6. A control system for a watch case polisher according to claim 5, characterized in that: In the grinding machine control module, after obtaining the temperature change characteristics, it also 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 control coordinates of the grinder corresponding to the difference time zone in the grinding process are identified and added to the defect repair data.

7. A control device for a watch case polisher, characterized in that: The device comprises a processor and a memory: The memory is used to store program code and transmit the program code to the processor; The processor is used to execute a method for controlling a watch case polisher according to any one of claims 1 to 3 according to instructions in the program code.

8. 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 polishing machine for a watch case as described in any one of claims 1-3.

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