Temperature control method, device, machine tool and readable storage medium

Abstract

The application discloses a temperature control method and device, a machine tool and a readable storage medium, and relates to the technical field of machine tools. The method comprises the following steps: acquiring current temperature values of each temperature control area; determining a temperature control mode by using the current temperature values, wherein the temperature control mode at least comprises a first temperature control mode and a second temperature control mode; and controlling a preset integrated valve group according to the temperature control mode to regulate the temperature of the corresponding temperature control area; and the preset valve group comprises a control valve group corresponding to each temperature control area. The application regulates the temperature control areas which can influence each other, and is beneficial to guarantee the machining precision of the machine tool.

Description

Technical Field

[0001] This invention relates to the field of machine tool technology, and more specifically to a temperature control method, device, machine tool, and readable storage medium. Background Technology

[0002] In the actual operation of machine tools, thermal errors generally account for a large proportion of the total error. This is mainly caused by the gradual increase in temperature of the machine tool during continuous operation. At the same time, there are also certain temperature differences between different parts inside the machine tool, that is, there is an internal temperature gradient. This internal temperature gradient will bring stress between components, and under the action of this stress, the machine tool is prone to deformation.

[0003] During machine tool operation, the heat sources that are always present include cutting heat generated during machining, friction heat from moving parts, heat generation and radiation from the power source, as well as other external heat sources such as the surrounding environment.

[0004] Due to the limitations of the thermal properties of existing materials, a cooling system is usually installed to cool and control the temperature of the machine tool, so that the heat-generating components on the machine tool can be kept within a certain temperature range, thereby ensuring the machining accuracy of the machine tool and reducing the wear of some machine tool components.

[0005] In existing cooling systems, temperature control is often applied to a single component or a single area of ​​a component. As a result, during actual processing, different components have different deformation coefficients, leading to very limited accuracy assurance provided by temperature control. Summary of the Invention

[0006] The main objective of this invention is to provide a temperature control method, device, machine tool, and readable storage medium to regulate temperature control zones that can influence each other, thereby improving the machining accuracy of the machine tool.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] In a first aspect, the present invention provides a temperature control method applied in a machine tool, the machine tool including multiple temperature control zones; the method includes:

[0009] Obtain the current temperature value of each of the temperature control zones;

[0010] The temperature control method is determined using each current temperature value, and the temperature control method includes at least a first temperature control method determined based on the correlation between temperature control zones;

[0011] The preset integrated valve group is controlled according to the temperature control method to regulate the temperature of the corresponding temperature control zone; the preset integrated valve group includes one or more control valves corresponding to each temperature control zone.

[0012] In one embodiment of the temperature control method, each temperature control region corresponds to a temperature control interval, and determining the temperature control method using each current temperature value includes:

[0013] Determine whether each current temperature value is within the corresponding temperature control range;

[0014] Obtain the temperature control zone corresponding to the current temperature value for which the judgment result is yes, and generate an associated confirmation list;

[0015] If the temperature control zones in the associated confirmation list meet the preset association relationship, then the temperature control method is determined to be the first temperature control method.

[0016] In one embodiment of the temperature control method, when the temperature control mode is a first temperature control mode, controlling a preset integrated valve group to regulate the temperature of the corresponding temperature control area according to the temperature control mode includes:

[0017] The flow rate and / or temperature of the temperature control medium in the corresponding temperature control zone are determined using a preset configuration table; the preset configuration table establishes a correspondence between the current temperature value of each temperature control zone and the reference flow rate and / or reference temperature of the temperature control source solution.

[0018] The temperature control source delivers a temperature-controlled medium with a determined flow rate and / or temperature to the corresponding temperature-controlled zone through the corresponding valve group in the preset integrated valve.

[0019] In one embodiment of the temperature control method, the temperature control area that satisfies the preset correlation includes a temperature control area belonging to a linear motion component, wherein the linear motion component includes: a linear motion actuator, a linear drive source for driving the linear motion actuator to move, and / or a motion track contacted by the linear motion actuator to perform the motion.

[0020] In one embodiment of the temperature control method, the linear motion actuator includes a slide saddle, a spindle box, and / or a crossbeam;

[0021] The linear drive source includes a lead screw drive assembly and / or a linear motor drive assembly.

[0022] In one embodiment of the temperature control method, the temperature control method further includes a second temperature control method; after obtaining the temperature control area corresponding to the current temperature value where the judgment result is yes to generate an associated confirmation list, the method further includes:

[0023] If the temperature control zones in the association confirmation list do not meet the preset association relationship, then the temperature control method is determined to be the second temperature control method;

[0024] The step of controlling the preset integrated valve group according to the temperature control method to regulate the temperature of the corresponding temperature control area includes:

[0025] The flow rate and / or temperature of the temperature control medium in each of the temperature control zones are determined according to the preset temperature range of each temperature control zone.

[0026] The temperature control source delivers a temperature-controlled medium with a determined flow rate and / or temperature to the corresponding temperature-controlled zone through the corresponding valve group in the preset integrated valve.

[0027] In one embodiment of the temperature control method, a first temperature sensor and a second temperature sensor are provided in each of the temperature control zones. The first temperature sensor is used to sense the temperature of the temperature control zone; the second temperature sensor is used to sense the temperature of the solution after heat exchange. After controlling a preset integrated valve group according to the temperature control method to regulate the temperature of the corresponding temperature control zone, the method includes:

[0028] If the temperature difference between the second temperature sensor and the first temperature sensor is greater than a preset threshold, the control output will indicate the corresponding temperature control zone information.

[0029] In a second aspect, the present invention provides a temperature control device applied in a machine tool, the machine tool including multiple temperature control zones; the device includes:

[0030] The acquisition module is used to acquire the current temperature value of each of the temperature control zones;

[0031] A determination module is used to determine a temperature control method using various current temperature values, wherein the temperature control method includes at least a first temperature control method determined based on the correlation between temperature control zones;

[0032] The control module is used to control a preset integrated valve group according to the temperature control method to regulate the temperature of the corresponding temperature control zone; the preset integrated valve group includes one or more control valves corresponding to each temperature control zone.

[0033] A third aspect also provides a machine tool, including a linear motion actuator and a machine tool control system for controlling the linear motion actuator to perform linear motion, the machine tool control system including the temperature control device as described above.

[0034] Fourthly, the present invention also provides a readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the temperature control method described above.

[0035] Compared with the prior art, the beneficial effects of the present invention are:

[0036] This invention obtains the current temperature value of each temperature control zone, determines the temperature control method based on the correlation between the temperature control zones, and then performs corresponding temperature adjustments according to the temperature control method. This enables the overall control of the temperature between interconnected temperature control zones, thereby reducing the error caused by the large temperature differences between interconnected temperature control zones and improving the machining accuracy of machine tools. Attached Figure Description

[0037] Figure 1 This is a flowchart of one embodiment of the temperature control method provided by the present invention;

[0038] Figure 2 This is a flowchart of another embodiment of the temperature control method provided by the present invention;

[0039] Figure 3 This is a functional block diagram of the temperature control device provided by the present invention.

[0040] Explanation of reference numerals in the attached figures:

[0041] Temperature control device 100; acquisition module 101; determination module 102; control module 103. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] It should be noted that when a component is referred to as being "set on" another component, it can be directly set on the other component or there may be an intervening component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there may be an intervening component. When a component is referred to as being "mounted on" another component, it can be directly mounted on the other component or there may be an intervening component.

[0044] Furthermore, it should be understood that all directional indications in the embodiments (such as up, down, left, right, center, etc.) are only used to explain the relative positional relationships and movement of the components in a specific posture (as shown in the figure). If the specific posture changes, the directional indications will also change accordingly. Terms such as "first" and "second" are used to distinguish different structural components. These terms are only for the purpose of simplifying the description of the present invention and should not be construed as limiting the present invention.

[0045] The temperature control method provided by this invention is mainly applied in machine tools. It regulates the temperature (including heating and cooling) of various areas within the machine tool, especially those directly related to motion, to minimize the error caused by temperature differences between these areas. The machine tool includes multiple temperature control zones, each equipped with multiple temperature sensors to acquire the temperature and / or temperature distribution within that zone. Hereinafter, this invention uses a temperature-controlled liquid as the temperature control medium.

[0046] See Figure 1 This is a flowchart of one embodiment of the temperature control method provided by the present invention. The flowchart only schematically shows some of the control steps for the machine tool. Therefore, some steps can be added, removed, or the order of some steps can be adjusted according to different application scenarios and environmental conditions.

[0047] Figure 1 In this embodiment, the temperature control method may include the following steps:

[0048] S101: Obtain the current temperature value of each of the temperature control zones.

[0049] In this embodiment, when multiple temperature sensors are set in each temperature control zone, the current temperature value can be the average temperature of the corresponding sensing zone or the maximum / minimum temperature of the corresponding sensing zone. When only one temperature sensor is set in each temperature control zone, only the temperature value generated by that sensor needs to be acquired.

[0050] In this invention, the temperature control area mainly includes a linear motion execution area, which corresponds to a linear motion component, wherein:

[0051] The linear motion component may include a linear motion actuator, a linear drive source for driving the linear motion actuator, and a motion track contacted by the linear motion actuator during its motion. Here, the linear motion actuator includes a slide saddle, a spindle box, and / or a crossbeam; the linear drive source includes a lead screw drive assembly and / or a linear motor drive assembly. The motion track may include, for example, an X-axis guide rail, a Y-axis guide rail, and / or a Z-axis guide rail.

[0052] Of course, the temperature control area may also include a rotary motion execution area, wherein the rotary motion execution area may include a rotary motion actuator and a rotary drive source for driving the rotary motion actuator. Here, the rotary motion actuator includes a rotary table and / or a spindle; the rotary drive source includes a direct drive motor assembly and / or a rotary drive motor.

[0053] The temperature control area corresponding to the rotational motion execution area can be controlled by a relatively independent controller of the preset integrated valve group.

[0054] S102: Determine the temperature control method using each current temperature value, wherein the temperature control method includes at least a first temperature control method determined based on the correlation between temperature control zones.

[0055] In this embodiment, multiple temperature control methods can be set in the machine tool control system. The first temperature control method is mainly used to comprehensively regulate the associated temperature control areas based on the current temperature value of each temperature control area. The second temperature control method is mainly used to individually regulate areas with certain temperature characteristics based on the current temperature value of each temperature area.

[0056] In this embodiment, each temperature control zone corresponds to a temperature control interval, and in this step, determining the temperature control method using each current temperature value may include:

[0057] (1) Determine whether each current temperature value is within the corresponding temperature control range. Here, the temperature control range is the temperature range in which the corresponding temperature control area needs to be temperature-controlled. Corresponding to the temperature control range, each temperature control area may also have a preset temperature range. The preset temperature range is the suitable temperature range in which no temperature control is required.

[0058] As mentioned above, the temperature control range of the lead screw drive component area (temperature control area, specifically the hollow lead screw body) can be [-20, 18) and [23, 90) (unit: °C), and the preset temperature range is [18, 22]. When the current temperature value of the lead screw drive component area is 21 °C, it can be determined that it is within the preset temperature range [10, 30) (unit: °C) of the lead screw drive component area. When the current temperature value of the lead screw drive component area is 55 °C, it can be determined that it is within the temperature control range of the lead screw drive component area.

[0059] For example, the temperature control range of the Y-axis guide rail area (temperature control area) mentioned above can be [0, 20) and (23, 50) (unit: °C), and the preset temperature range is [20, 23]. When the current temperature value of the lead screw drive component area is 22 °C, it can be determined that it is within the preset temperature range [10, 30) (unit: °C) of the lead screw drive component area. When the current temperature value of the lead screw drive component area is 30 °C, it can be determined that it is within the temperature control range of the lead screw drive component area.

[0060] The same applies to the other temperature control zones, so they will not be listed here.

[0061] (2) Obtain the temperature control area corresponding to the current temperature value where the judgment result is yes to generate an associated confirmation list. For example, when the screw temperature is 40°C, the screw drive component area can be added to the associated confirmation list; and when the Y-axis guide rail temperature is 45°C, the motion track can be added to the associated confirmation list.

[0062] (3) If the temperature control zones in the associated confirmation list satisfy a preset association relationship, then the temperature control method is determined to be the first temperature control method. Here, the preset association relationship includes that the temperature control zone belongs to a linear motion component, and the linear motion component includes: a linear motion actuator, a linear drive source for driving the linear motion actuator to move, and a motion track contacted by the linear motion actuator to perform the motion.

[0063] For example, the Y-axis guide rail, the saddle mounted on the Y-axis guide rail, the X-axis guide rail mounted on the saddle, and the lead screw drive assembly for driving the saddle are typical linear motion components. When any two or more items in the association confirmation list are present, it can be determined that each temperature control zone in the association confirmation list meets the preset association relationship, and subsequent steps can then be executed.

[0064] S103: Control the preset integrated valve group according to the temperature control method to regulate the temperature of the corresponding temperature control zone; the preset integrated valve group includes one or more control valves corresponding to each of the temperature control zones.

[0065] In this embodiment, by acquiring the current temperature value of each temperature control zone, the temperature control method is determined based on the correlation between the temperature control zones. Subsequently, the temperature is adjusted accordingly based on the temperature control method. This enables a more flexible and adaptive temperature environment between the temperature control zones, which is beneficial for achieving dynamic temperature change control between the temperature control zones. It also allows for overall control by combining the temperatures of each temperature control zone, thereby reducing errors caused by certain cooling differences between the interconnected temperature control zones and improving the machining accuracy of the machine tool.

[0066] In this embodiment, when the machine tool's current temperature control mode is the first temperature control mode, controlling the preset integrated valve group according to the temperature control mode to regulate the temperature of the corresponding temperature control area may include:

[0067] (1) The flow rate and / or temperature of the temperature control medium in the corresponding temperature control zone are determined using a preset configuration table. The preset configuration table establishes a correspondence between the current temperature value of each temperature control zone and the reference flow rate and / or reference temperature of the temperature control source solution, including the current temperature value of the temperature control zone, the reference flow rate of the temperature control medium, and the temperature parameters of the temperature control medium. Each parameter is determined based on the optimal accuracy achievable by each component combination under various temperature test conditions. Of course, according to some special control requirements, parameters such as the type and flow rate of the temperature control medium can also be tested and obtained.

[0068] (2) The temperature control source delivers the temperature control medium with the determined flow rate and / or temperature to the corresponding temperature control area through the corresponding valve group in the preset integrated valve.

[0069] In this embodiment, all temperature-controlled media can be controlled by the preset integrated valve, making control more intuitive and convenient. In the preset integrated valve, one temperature-controlled zone corresponds to one or more control valves. Each control valve can control the temperature-controlled media supplied by the temperature control source, and can evenly distribute the temperature-controlled media to the interconnected temperature-controlled zones.

[0070] In this invention, the temperature control source preferably includes a storage tank for temperature-controlled media with multiple temperatures. Therefore, after determining the temperature parameters of the corresponding temperature-controlled media, the corresponding temperature-controlled media can be directly output through the control of the corresponding valve. Alternatively, a mixer can be used to mix and heat the liquid to output the corresponding temperature-controlled media.

[0071] In this embodiment, the temperature control method further includes a second temperature control method. Accordingly, after obtaining the temperature control area corresponding to the current temperature value where the judgment result is yes to generate an associated confirmation list, the method further includes:

[0072] If the temperature control zones in the associated confirmation list do not satisfy the preset association relationship, it can be determined that the possibility of mutual temperature influence between the temperature control zones to be regulated is low, and thus the temperature control method can be determined to be the second temperature control method. In this case, controlling the preset integrated valve group according to the temperature control method to regulate the temperature of the corresponding temperature control zone may include:

[0073] (1) Determine the flow rate and / or temperature of the temperature control medium in each of the temperature control zones according to the preset temperature range of each temperature control zone;

[0074] (2) The temperature control source delivers the temperature control medium with the determined flow rate and / or temperature to the corresponding temperature control area through the corresponding valve group in the preset integrated valve.

[0075] This allows for separate temperature control of each temperature-controlled zone. It is understandable that, in the second temperature control mode, the pre-set integrated valve group can use relatively independent control valves to control the corresponding temperature-controlled medium for temperature adjustment.

[0076] See Figure 2 This is a flowchart of another embodiment of the temperature control method provided by the present invention. Similarly, this flowchart only schematically shows some of the control steps for the machine tool. Therefore, some steps can be added, removed, or the order of some steps can be adjusted according to different application scenarios and environmental conditions.

[0077] This embodiment differs from the previous embodiments in that it further includes determining the temperature based on different temperature sensors to output corresponding information prompts. Simultaneously, a first temperature sensor and a second temperature sensor are provided in each of the temperature control zones. The first temperature sensor is used to sense the temperature of the temperature control zone; the second temperature sensor is used to sense the temperature of the solution after heat exchange.

[0078] Figure 2 In this embodiment, the temperature control method may include the following steps:

[0079] S201: Obtain the current temperature value of each of the temperature control zones.

[0080] S202: Determine the temperature control method using each current temperature value, wherein the temperature control method includes at least a first temperature control method determined based on the correlation between temperature control zones.

[0081] S203: Control the preset integrated valve group according to the temperature control method to regulate the temperature of the corresponding temperature control zone; the preset integrated valve group includes one or more control valves corresponding to each of the temperature control zones.

[0082] S204: If the temperature difference between the second temperature sensor and the first temperature sensor is greater than a preset threshold, the control output will indicate the corresponding temperature control area.

[0083] In this embodiment, after adjusting the temperature of the corresponding temperature control area, the temperature difference between the second temperature sensor and the first temperature sensor is obtained to determine the current temperature control effect. If the temperature difference is greater than a preset threshold, it can be determined that the current temperature control is abnormal or the current effect is poor. At this time, the corresponding temperature control area information prompt can be output for the operator to check and understand, which is conducive to the maintenance of the temperature control components.

[0084] In this embodiment, before step S204, the following steps may also be performed: return to step S203, control the preset integrated valve according to the second temperature control method to regulate the temperature of the corresponding temperature control area, and then perform step S204.

[0085] See Figure 3 The present invention provides a functional module of a temperature control device 100, which is mainly used in machine tools. Figure 3 In the temperature control method provided in the foregoing embodiments, the temperature control device 100 may include an acquisition module 101, a determination module 102, and a control module 103, wherein:

[0086] The determination module 101 is mainly used to obtain the current temperature value of each of the temperature control zones.

[0087] The acquisition module 102 is mainly used to determine the temperature control mode using each current temperature value. The temperature control mode includes at least a first temperature control mode determined based on the correlation between temperature control zones.

[0088] The control module 103 is mainly used to control the preset integrated valve group according to the temperature control method to regulate the temperature of the corresponding temperature control area; the preset integrated valve group includes one or more control valves corresponding to each temperature control area.

[0089] Of course, it is understood that the temperature control device 100 provided by the present invention is not limited to the functional modules mentioned above. Based on the implementation of the aforementioned temperature control method, and / or according to different application scenarios and / or detection conditions, corresponding functional modules may be appropriately added or removed, such as a judgment module, used to determine whether each current temperature value is within the corresponding temperature control range. The generation module is also used to obtain the temperature control area corresponding to the current temperature value whose judgment result is yes in order to generate an association confirmation list. At this time, the determination module is also used to determine the temperature control method as the first temperature control method when the temperature control areas in the association confirmation list satisfy a preset association relationship.

[0090] The present invention also provides a machine tool, the machine tool including a linear motion actuator and a machine tool control system for controlling the linear motion actuator to perform linear motion. The machine tool control system includes the aforementioned temperature control device, or the machine tool control system applies the aforementioned temperature control method, which can support a more flexible and adaptive temperature environment between various temperature control zones. This facilitates dynamic temperature change regulation between various temperature control zones, and enables overall regulation by combining the temperatures of various temperature control zones. This reduces errors caused by certain cooling differences between interconnected temperature control zones, and helps improve the machining accuracy of the machine tool.

[0091] Furthermore, the present invention also provides a computer comprising a processor, a memory, and a computer program stored in the memory and executable on the processor. The processor executes the computer program to implement the steps of the aforementioned temperature control methods, for example... Figure 1 Steps S101 to S103 shown are as follows: Figure 2 Steps 201 to S204, as shown, are examples of this. Alternatively, the processor executes a computer program to implement the functions of each module or unit in the above-described device embodiments.

[0092] For example, a computer program can be divided into one or more modules / units, one or more of which are stored in memory and executed by a processor to complete the present invention. The aforementioned one or more modules / units can be a series of computer program instruction segments capable of performing a specific function, which describe the execution process of the computer program in a terminal device.

[0093] The aforementioned processor can be a Central Processing Unit (CPU), or other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable Gate Arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor. The processor is the control center of the terminal device, connecting all parts of the terminal device through various interfaces and lines.

[0094] The aforementioned memory can be used to store computer programs and / or modules. The processor implements various functions of the terminal device by running or executing the computer programs and / or modules stored in the memory, and by calling data stored in the memory. The memory can mainly include a program storage area and a data storage area. The program storage area can store the operating system, application programs required for at least one function (such as acquisition functions, control functions, etc.), etc.; the data storage area can store data created according to the use of the terminal device (such as feature location data, sensing data, etc.). In addition, the memory can include high-speed random access memory, and can also include non-volatile memory, such as hard disks, RAM, plug-in hard disks, smart media cards (SMC), secure digital (SD) cards, flash cards, at least one disk storage device, flash memory device, or other volatile solid-state storage devices.

[0095] When a computer-integrated module / 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 present invention can implement all or part of the processes in the above-described temperature control method by instructing related hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and when executed by a processor, it can implement the steps of the above-described temperature control method embodiments. The computer program includes computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. The computer-readable medium can include: any entity or device capable of carrying computer program code, recording media, USB flash drives, portable hard drives, magnetic disks, optical disks, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc. It should be noted that the content included in the computer-readable medium can be appropriately added or removed according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media do not include electrical carrier signals and telecommunication signals.

[0096] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0097] In the several embodiments provided in this application, the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of the functional module units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, or indirect coupling or communication connection between apparatuses or units, and may be electrical, mechanical, or other forms.

[0098] The units described as separate components may or may not be physically separate. 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 the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0099] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0100] 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, 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. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0101] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0102] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A temperature control method applied in a machine tool, the machine tool comprising multiple temperature control zones, each temperature control zone corresponding to a temperature control interval; characterized in that, The method includes: Obtain the current temperature value of each of the temperature control zones; The temperature control method is determined using each current temperature value. The temperature control method includes at least a first temperature control method and a second temperature control method. The first temperature control method is used to comprehensively regulate the associated temperature control areas based on the current temperature values ​​of each temperature control area. The second temperature control method is used to individually regulate areas with certain temperature characteristics based on the current temperature values ​​of each temperature area. The first temperature control method is determined based on the correlation between the temperature control areas. The preset integrated valve group is controlled according to the temperature control method to regulate the temperature of the corresponding temperature control zone; the preset integrated valve group includes one or more control valves corresponding to each temperature control zone. The method of determining the temperature control using each current temperature value includes: Determine whether each current temperature value is within the corresponding temperature control range; Obtain the temperature control zone corresponding to the current temperature value for which the judgment result is yes, and generate an associated confirmation list; If the temperature control zones in the associated confirmation list meet the preset association relationship, then the temperature control method is determined to be the first temperature control method; When the temperature control method is the first temperature control method, the step of controlling the preset integrated valve group to regulate the temperature of the corresponding temperature control area according to the temperature control method includes: The flow rate and / or temperature of the temperature control medium in the corresponding temperature control zone are determined using a preset configuration table; the preset configuration table establishes a correspondence between the current temperature value of each temperature control zone and the reference flow rate and / or reference temperature of the temperature control source solution. The temperature control source delivers a temperature-controlled medium with a determined flow rate and / or temperature to the corresponding temperature-controlled zone through the corresponding valve group in the preset integrated valve.

2. The temperature control method as described in claim 1, characterized in that, The temperature control zone that satisfies the preset correlation includes a linear motion component, which includes: a linear motion actuator, a linear drive source for driving the linear motion actuator, and / or a motion track that the linear motion actuator contacts when performing its motion.

3. The temperature control method as described in claim 2, characterized in that, The linear motion actuator includes a slide saddle, a spindle box, and / or a crossbeam; The linear drive source includes a lead screw drive assembly and / or a linear motor drive assembly.

4. The temperature control method as described in claim 1, characterized in that, After obtaining the temperature control zone corresponding to the current temperature value where the judgment result is yes to generate an associated confirmation list, the method further includes: If the temperature control zones in the association confirmation list do not meet the preset association relationship, then the temperature control method is determined to be the second temperature control method; The step of controlling the preset integrated valve group according to the temperature control method to regulate the temperature of the corresponding temperature control area includes: The flow rate and / or temperature of the temperature control medium in each temperature control zone are determined according to the preset temperature range of each temperature control zone. The temperature control source delivers a temperature-controlled medium with a determined flow rate and / or temperature to the corresponding temperature-controlled zone through the corresponding valve group in the preset integrated valve.

5. The temperature control method according to any one of claims 1 to 3, characterized in that, A first temperature sensor and a second temperature sensor are provided in each of the temperature control zones. The first temperature sensor is used to sense the temperature of the temperature control zone, and the second temperature sensor is used to sense the temperature of the solution after heat exchange. After controlling a preset integrated valve group according to the temperature control method to regulate the temperature of the corresponding temperature control zone, the method includes: If the temperature difference between the second temperature sensor and the first temperature sensor is greater than a preset threshold, the control output will indicate the corresponding temperature control zone information.

6. A temperature control device, employing the temperature control method as described in any one of claims 1 to 5, applied in a machine tool, the machine tool comprising a plurality of temperature control zones, each temperature control zone corresponding to a temperature control interval; characterized in that, The device includes: The acquisition module is used to acquire the current temperature value of each of the temperature control zones; The determination module is used to determine the temperature control method using various current temperature values. The temperature control method includes at least a first temperature control method and a second temperature control method. The first temperature control method is used to comprehensively regulate the associated temperature control areas based on the current temperature values ​​of each temperature control area. The second temperature control method is used to individually regulate areas with certain temperature characteristics based on the current temperature values ​​of each temperature area. The first temperature control method is determined based on the correlation between the temperature control areas. The control module is used to control a preset integrated valve group according to the temperature control method to regulate the temperature of the corresponding temperature control zone; the preset integrated valve group includes one or more control valves corresponding to each temperature control zone. The method of determining the temperature control using each current temperature value includes: Determine whether each current temperature value is within the corresponding temperature control range; Obtain the temperature control zone corresponding to the current temperature value for which the judgment result is yes, and generate an associated confirmation list; If the temperature control zones in the associated confirmation list meet the preset association relationship, then the temperature control method is determined to be the first temperature control method; When the temperature control method is the first temperature control method, the step of controlling the preset integrated valve group to regulate the temperature of the corresponding temperature control area according to the temperature control method includes: The flow rate and / or temperature of the temperature control medium in the corresponding temperature control zone are determined using a preset configuration table; the preset configuration table establishes a correspondence between the current temperature value of each temperature control zone and the reference flow rate and / or reference temperature of the temperature control source solution. The temperature control source delivers a temperature-controlled medium with a determined flow rate and / or temperature to the corresponding temperature-controlled zone through the corresponding valve group in the preset integrated valve.

7. A machine tool, characterized in that, The machine tool includes a linear motion actuator and a machine tool control system for controlling the linear motion actuator to perform linear motion. The machine tool control system includes the temperature control device as described in claim 6, or the machine tool control system applies the temperature control method as described in any one of claims 1 to 5.

8. A readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by the processor, it implements the steps of the temperature control method as described in any one of claims 1 to 5.

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