Machine tool device, machine tool cooling method

Abstract

The application provides a machine tool device and a machine tool cooling method. The machine tool device comprises a machine tool body, a cooling device and a medium supply unit. The machine tool body is provided with a cooling channel structure. The cooling device has a medium supply unit for supplying cooling medium into the cooling channel group to cool the machine tool body. The cooling channel structure comprises a first channel unit and a second channel unit in communication. The first channel unit is located in the middle of the machine tool body, and the second channel unit is arranged on both sides of the machine tool body. The flow cross section of the first channel unit is larger than that of the second channel unit, thereby solving the problem of thermal deformation of the machine tool in the prior art during use.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cooling technology, in particular to a machine tool device and a machine tool cooling method. BACKGROUND

[0002] In modern manufacturing, machine tools are the key equipment for high-precision part processing. However, the thermal deformation of machine tool castings has always been an important factor affecting the machining accuracy. The thermal deformation of machine tool castings is mainly caused by uneven temperature rise of various parts of the machine tool. The reasons for this uneven temperature rise include motor heating, frictional heating of gears and bearings in the spindle box, cutting heat during cutting, etc. These heat sources cause uneven temperature distribution in various parts of the machine tool casting, and further generate thermal stress, causing deformation of the machine tool casting.

[0003] The negative impact of thermal deformation of machine tool castings on machining mainly manifests in the following aspects:

[0004] 1. Destroying the original geometric accuracy of the machine tool, resulting in a decrease in the size and shape accuracy of the machined parts;

[0005] 2. Changing the fit clearance between various components of the machine tool, increasing the friction and wear between moving parts;

[0006] 3. Affecting the overall stability of the machine tool, causing vibration and noise during machining, reducing work efficiency and machining quality.

[0007] Currently, to control the thermal deformation of machine tool castings, the industry generally adopts methods including optimizing the spindle structure design, increasing the overall rigidity of the machine tool, and using high-precision sensors for temperature monitoring. However, these methods can only partially alleviate the problem of thermal deformation, and in some cases, such as long-term continuous operation of the machine tool or work in high-temperature environments, the effect is not ideal. SUMMARY

[0008] The main purpose of the present application is to provide a machine tool device and a machine tool cooling method to solve the problem of thermal deformation of machine tools during use in the prior art.

[0009] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a machine tool device is provided, comprising:

[0010] a machine tool body, the machine tool body being provided with a cooling channel structure;

[0011] a cooling device, the cooling device having a medium supply unit for supplying cooling medium to the cooling channel group through the medium supply unit to cool the machine tool body;

[0012] The cooling channel structure comprises a first channel unit and a second channel unit in communication, the first channel unit is located in the middle of the machine tool body, and the second channel unit is arranged on both sides of the machine tool body.

[0013] Further, the first channel unit comprises:

[0014] two first cooling flow channels, both of which extend along the width direction of the machine tool body;

[0015] a second cooling flow channel, which extends along the length direction of the machine tool body to communicate the two first cooling flow channels;

[0016] wherein the distance between the two ends of the two first cooling flow channels and the side wall of the machine tool body corresponding thereto along the length direction thereof is 90mm to 100mm; and / or,

[0017] the flow cross section is circular, and the diameter of the flow cross section of the first channel unit is 16mm to 18mm.

[0018] Further, the second channel unit comprises a third cooling flow channel and a fourth cooling flow channel, and the third cooling flow channel and the fourth cooling flow channel are communicated through the two first cooling flow channels.

[0019] Further, the third cooling flow channel comprises:

[0020] a second part, which extends along the length direction of the machine tool body;

[0021] a third part, which extends along the width direction of the machine tool body;

[0022] a fourth part, which extends along the length direction of the machine tool body;

[0023] wherein the first part, the second part, the third part and the fourth part are communicated in sequence to form the third cooling flow channel.

[0024] Further, the fourth cooling flow channel comprises:

[0025] two U-shaped segments, the U-shaped openings of the two U-shaped segments are arranged towards the third cooling flow channel;

[0026] a connecting segment, which communicates the two U-shaped segments;

[0027] a transition segment, which comprises a first segment extending along the length direction of the machine tool body and a second segment extending along the width direction of the machine tool body, and communicates the third cooling flow channel and the fourth cooling flow channel through the transition segment.

[0028] Further, the cooling device comprises:

[0029] heat exchange unit;

[0030] The heat exchange unit is used in cooperation with the medium supply unit through the heat exchanger to exchange heat of the heat source flowing out of the second channel unit, and deliver the heat source after heat exchange to the medium supply unit to form the cooling medium.

[0031] Further, the heat exchange unit comprises:

[0032] heat exchange pipeline;

[0033] The heat exchange pipeline is sequentially provided with a compressor and a condenser in the flow direction of the heat source to exchange heat of the heat source flowing out of the outlet end of the cooling channel structure; and / or,

[0034] A condenser fan is arranged at one side of the condenser to exchange heat of the heat source entering into the condenser.

[0035] Further, the heat exchange unit further comprises:

[0036] A filter component, an inlet of the filter component is communicated with an outlet of the condenser, and an outlet end of the filter component is used to be communicated with an inlet end of the second heat exchange channel of the heat exchanger to filter the liquid after condensation of the condenser and form the cold source to be delivered into the second heat exchange channel of the heat exchanger.

[0037] Further, the heat exchange unit further comprises:

[0038] A first temperature detection component arranged on the machine tool body to detect the real-time temperature at the position where the first channel unit is arranged on the machine tool body;

[0039] A control valve arranged between the filter component and the inlet end of the second heat exchange channel of the heat exchanger, the control valve is connected with the first temperature detection component to control the flow of the cold source into the second heat exchange channel according to the detection result of the first temperature detection component.

[0040] Further, the medium supply unit comprises:

[0041] A cooling water tank, a water inlet of the cooling water tank is communicated with an outlet end of the first heat exchange channel of the heat exchanger to store the heat source after heat exchange;

[0042] A liquid inlet pipeline is communicated with a water outlet of the cooling water tank, and a water outlet of the liquid inlet pipeline is communicated with an inlet end of the first channel unit to deliver the cooling medium in the cooling water tank into the first channel unit.

[0043] Further, the medium supply unit further comprises:

[0044] An alarm component;

[0045] The liquid level detecting component is arranged in the cooling water tank and connected with the alarm component, so as to send an alarm indication through the alarm component when the liquid level of the cooling medium in the cooling water tank is lower than the set liquid level.

[0046] Further, the medium supply unit further comprises:

[0047] An outlet pipeline, one end of the outlet pipeline is communicated with the outlet end of the second channel unit, and the other end of the outlet pipeline is communicated with the inlet end of the first heat exchange channel of the heat exchanger;

[0048] A first temperature detecting component, arranged on the machine tool body, for detecting the real-time temperature at the position where the first channel unit is arranged on the machine tool body;

[0049] A pump body, arranged on the outlet pipeline and connected with the first temperature detecting component, for controlling the power of the pump body according to the detection result of the first temperature detecting component.

[0050] According to another aspect of the present application, a machine tool cooling method is provided, which is applied to the machine tool device described above, and the cooling method comprises:

[0051] Detecting whether the machine tool body of the machine tool device is started;

[0052] When it is detected that the machine tool body is started, controlling the medium supply unit of the machine tool device to deliver the cooling medium into the cooling channel group to cool the machine tool body.

[0053] Further, before the step of detecting whether the machine tool body of the machine tool device is started, the method comprises:

[0054] Detecting the first real-time temperature of the cooling medium in the cooling water tank of the medium supply unit of the machine tool device;

[0055] When the first real-time temperature is greater than or less than the set temperature value, calculating a first temperature difference between the first real-time temperature and the set temperature value, and controlling the operating frequency of the compressor of the heat exchange unit according to the first temperature difference until the first real-time temperature reaches the set temperature value.

[0056] Further, the step of cooling the machine tool body comprises:

[0057] Detecting the second real-time temperature of the inlet pipeline or the third real-time temperature of the outlet pipeline of the medium supply unit;

[0058] Detecting the fourth real-time temperature at the position where the first channel unit is arranged on the machine tool body;

[0059] Calculating a second temperature difference between the second real-time temperature or the third real-time temperature and the fourth real-time temperature;

[0060] Acquire the historical temperature value of the machine tool body, the historical temperature value being the temperature value of the machine tool body in the previous 60 seconds;

[0061] Calculate the temperature change rate between the fourth real-time temperature and the historical temperature value;

[0062] Control the operating frequency of the compressor of the heat exchange unit according to the temperature change rate and the second temperature difference value.

[0063] Further, controlling the operating frequency of the compressor of the heat exchange unit according to the temperature change rate and the second temperature difference value, comprising:

[0064] When the temperature change rate is greater than or equal to the first set value, controlling the compressor to increase in turn by 1HZ as the set frequency of the compressor based on the initial frequency; and / or,

[0065] When the temperature change rate is less than or equal to the second set value, controlling the compressor to decrease in turn by 1HZ as the set frequency of the compressor based on the highest frequency; and / or,

[0066] When the temperature change rate is greater than the second set value and less than or equal to the first set value, controlling the compressor to operate at the current frequency.

[0067] By designing the specific cooling channel structure in the machine tool body, the application can effectively improve the cooling efficiency, reduce the thermal deformation of the machine tool body, and improve the machining precision of the machine tool, wherein the flow cross-section difference design of the first channel unit and the second channel unit makes the distribution of the cooling medium in the machine tool body more uniform, effectively avoids the thermal deformation problem caused by local overheating, enhances the thermal stability of the machine tool body, and helps to maintain the precise cooperation between the parts of the machine tool by reducing the thermal deformation of the machine tool body, reduces the friction and wear between the moving parts, prolongs the service life of the machine tool body, and reduces the maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0068] The drawings accompanying the specification of this application form a part thereof, serve to provide further understanding of the application, and together with the description of the exemplary embodiments of the application, serve to explain the application, and do not constitute improper limitations on the application. In the drawings:

[0069] Fig. 1 The structure diagram of the machine tool device of the embodiment of the application is shown;

[0070] Fig. 2 The flowchart of the machine tool cooling method of the embodiment of the application is shown.

[0071] Among them, the above drawings include the following reference signs:

[0072] 101, first cooling flow channel; 102, second cooling flow channel; 2, heat exchanger; 3, condenser; 4, compressor; 5, condenser fan; 6, filter component; 7, control valve; 8, cooling water tank; 9, liquid inlet pipeline; 10, liquid outlet pipeline; 11, pump body; 12, machine tool body; 13, first temperature detection component. DETAILED DESCRIPTION

[0073] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0074] In modern manufacturing industry, machine tools are the key equipment for realizing high-precision part processing. However, the thermal deformation of machine tool castings has always been an important factor affecting the machining accuracy. The thermal deformation of machine tool castings is mainly caused by uneven temperature rise of various parts of the machine tool. The reasons for causing such uneven temperature rise include motor heating, frictional heating of gears and bearings in the spindle box, cutting heat in the cutting process, etc. These heat sources cause uneven temperature distribution of the machine tool casting, and further generate thermal stress, causing deformation of the machine tool casting.

[0075] The negative impact of the thermal deformation of the machine tool casting on machining mainly manifests in the following aspects:

[0076] 1. Destroying the original geometric accuracy of the machine tool, resulting in a decrease in the size and shape accuracy of the machined parts;

[0077] 2. Changing the fit clearance between various parts of the machine tool, increasing the friction and wear between moving parts;

[0078] 3. Affecting the overall stability of the machine tool, causing vibration and noise during machining, and reducing work efficiency and machining quality.

[0079] At present, the methods commonly used in the industry to control the thermal deformation of machine tool castings include optimizing the spindle structure design, increasing the overall rigidity of the machine tool, and using high-precision sensors for temperature monitoring. However, these methods can only partially alleviate the problem of thermal deformation, and in some cases, such as long-term continuous operation of the machine tool or working in a high-temperature environment, the effect is not ideal.

[0080] The main purpose of the present application is to provide a machine tool device and a machine tool cooling method to solve the problem of thermal deformation of the machine tool in the prior art during use.

[0081] The present application first provides a machine tool device, which comprises a machine tool body 12, and a cooling channel structure is arranged on the machine tool body 12.

[0082] The cooling device has a medium supply unit for supplying cooling medium to the cooling channel group to cool the machine tool body 12.

[0083] The cooling channel structure includes a first channel unit and a second channel unit in communication, the first channel unit is located in the middle of the machine tool body 12, and the second channel unit is arranged on both sides of the machine tool body 12, and the flow cross section of the first channel unit is larger than that of the second channel unit.

[0084] Specifically, as shown in the drawings, Figs. 1-2 The machine tool device is designed to effectively control the thermal deformation of the machine tool body, improve the machining precision and stability of the machine tool, and mainly includes a machine tool body 12 and a cooling device. The cooling device supplies cooling medium to the cooling channel structure inside the machine tool body 12 through the medium supply unit to achieve precise cooling of the machine tool body 12. The cooling channel structure is one of the core designs of the present application, which consists of two main parts: the first channel unit and the second channel unit. Because the engine, bearing box and other devices that generate high heat during work are located above the middle of the machine tool body 12, the first channel unit is located in the middle of the machine tool body 12, which is designed to have a larger flow cross section to accommodate more cooling medium flowing through, thereby effectively removing the heat in the middle region of the machine tool. The second channel unit is arranged on both sides of the machine tool body 12, and the flow cross section is smaller than that of the first channel unit, but through appropriate design, the cooling medium can flow uniformly to reduce the temperature rise on both sides of the machine tool body 12. Such channel design can ensure that the cooling medium flows more uniformly inside the machine tool body, thereby improving the cooling efficiency.

[0085] The present application can effectively improve the cooling efficiency and reduce the thermal deformation of the machine tool body 12, thereby improving the machining precision of the machine tool, wherein the flow cross section difference design of the first channel unit and the second channel unit makes the distribution of the cooling medium inside the machine tool body 12 more uniform, effectively avoids the problem of thermal deformation caused by local overheating, enhances the thermal stability of the machine tool body 12, and reduces the thermal deformation of the machine tool body 12. The present application helps to maintain the precise cooperation between the various parts of the machine tool, reduces the friction and wear between the moving parts, prolongs the service life of the machine tool body 12, and reduces the maintenance cost.

[0086] Further, the first channel unit includes two first cooling flow channels 101, both of which extend along the width direction of the machine tool body 12;

[0087] A second cooling flow channel 102 extends along the length direction of the machine tool body 12 to communicate the two first cooling flow channels 101;

[0088] wherein the distance between the two ends of the two first cooling channels 101 and the side walls of the machine tool body 12 corresponding thereto along the length direction thereof is 90mm to 100mm; and / or,

[0089] The flow cross section is circular, and the diameter of the flow cross section of the first channel unit is 16mm to 18mm.

[0090] The second channel unit comprises a third cooling channel and a fourth cooling channel, and the third cooling channel and the fourth cooling channel are communicated through the two first cooling channels.

[0091] Specifically, the present application realizes high-efficiency and uniform cooling effect by designing a specific cooling channel structure inside the machine tool body 12. Specifically, the cooling channel structure is divided into two parts of a first channel unit and a second channel unit, wherein the first channel unit is composed of two first cooling channels 101 and a second cooling channel 102. The two first cooling channels 101 extend along the width direction of the machine tool body 12, and are designed to maintain a distance of 90mm to 100mm with the side walls at both ends of the machine tool body 12. Such layout can ensure uniform distribution of the cooling medium in the width direction of the machine tool body 12, avoiding local overheating. The second cooling channel 102 extends along the length direction of the machine tool body 12, and its role is to communicate the two first cooling channels 101, forming a cooling network penetrating through the width and length directions of the machine tool body 12, which helps the smooth flow of the cooling medium inside the entire machine tool body 12, thereby improving the cooling efficiency. The design of the flow cross section is crucial to the performance of the cooling channel. In the present application, the flow cross section of the first channel unit is circular, and the diameter is set to be between 16mm and 18mm. The circular cross section is beneficial to reducing fluid resistance and improving the flow efficiency of the cooling medium.

[0092] The second channel unit is composed of a third cooling channel and a fourth cooling channel, and they are also communicated through the two first cooling channels, forming a complete cooling channel network. This design ensures that the cooling medium can uniformly flow through both sides of the machine tool body, further optimizing the distribution of the cooling medium inside the machine tool, and avoiding the overheating problem of the side structure.

[0093] The application can realize efficient and uniform cooling of the machine tool body 12, effectively control the thermal deformation of the machine tool body, and significantly improve the machining precision and stability of the machine tool body 12. The first cooling flow channel 101 is kept a certain distance from the side wall at both ends of the machine tool body 12, which can avoid local overheating of the side part, ensure uniform distribution of the cooling medium, reduce the temperature difference of the machine tool body 12, and enhance the overall thermal stability of the machine tool body 12. The setting of the second cooling flow channel 102 strengthens the flow of the cooling medium in the length direction of the machine tool body 12. The design of the circular flow cross section reduces the fluid resistance and improves the flow efficiency of the cooling medium. The diameter range of 16mm to 18mm takes into account the cooling efficiency and processing cost. The cooling channel structure of the application not only reduces the thermal deformation of the machine tool body 12 during long-time continuous operation or high-load cutting operation, but also reduces the vibration and noise caused thereby, improves the stability of the machining process, provides a better working environment for the operator, reduces the thermal deformation of the machine tool body 12, maintains the precise cooperation between the parts of the machine tool, reduces the friction and wear between the moving parts, prolongs the service life of the machine tool body 12, reduces the maintenance cost, and enhances the economic benefit of the machine tool. The cooling channel structure design of the application is simple, easy to implement, and has remarkable effects, which provides an effective solution for high-precision and high-stability machine tools in modern manufacturing industry, and has wide application prospect and popularization value.

[0094] In summary, the application optimizes the cooling channel structure, effectively controls the thermal deformation of the machine tool body 12, improves the machining precision of the machine tool, reduces the negative effects of thermal deformation, and provides strong technical support for the equipment upgrading and efficiency improvement of modern manufacturing industry.

[0095] Further, the third cooling flow channel comprises: a first part extending along the width direction of the machine tool body 12;

[0096] a second part extending along the length direction of the machine tool body 12;

[0097] a third part extending along the width direction of the machine tool body 12;

[0098] a fourth part extending along the length direction of the machine tool body 12;

[0099] Wherein, the first part, the second part, the third part and the fourth part are communicated in sequence to form the third cooling flow channel.

[0100] Specifically, in the present application, in order to further improve the cooling effect of the machine tool body 12, especially to achieve uniform temperature distribution in the width and length directions, we designed a complex third cooling flow channel containing a first section, a second section, a third section and a fourth section. The design of this cooling flow channel can ensure that the cooling medium fully covers the key parts of the machine tool body 12, effectively reducing the influence of thermal deformation on machining precision. The first section extends along the width direction of the machine tool body 12, and its design purpose is mainly to cool the heat sources in the width direction of the machine tool body 12, such as the spindle box, motor and other components, to ensure that the heat generated by these components during machining can be uniformly absorbed by the cooling medium. The second section extends along the length direction of the machine tool body 12, which covers the heat sources in the length direction of the machine tool body 12, such as the feed system, which helps to uniformly remove the heat generated in the length direction and improve the thermal stability of the machined parts. The third section again extends along the width direction of the machine tool body 12, forming a closed circulation with the first section, ensuring uniform distribution of the cooling medium in the width direction, and avoiding the problem of local overheating or insufficient cooling. The fourth section extends along the length direction of the machine tool body 12, together with the second section, forming a circulation path of the cooling medium in the length direction, ensuring sufficient circulation of the cooling medium in the length direction and improving the cooling efficiency. The first section, the second section, the third section and the fourth section are sequentially communicated to form a closed third cooling flow channel, and the cooling medium circulates in the flow channel, realizing the optimization of the overall thermal management of the machine tool body 12 through multiple directional coverage. This design also allows the cooling medium to form a vortex effect in the flow channel, further improving the heat transfer efficiency and ensuring sufficient contact between the cooling medium and the machine tool body surface, thereby improving the cooling effect. In specific implementation, the design of the third cooling flow channel should fully consider the structure and heat source distribution of the machine tool body 12, through accurate fluid mechanics calculation and optimization, to ensure that the cooling medium can uniformly and efficiently cover all heat source areas, while avoiding the increase of energy consumption caused by excessive cooling.

[0101] The present application can realize uniform distribution of cooling medium in the width and length directions of the machine tool body, effectively reduce the thermal deformation of the machine tool body, and improve the machining precision. The circulation of the third part and the first part in the width direction, and the circulation of the fourth part and the second part in the length direction form a closed cooling system, improve the circulation efficiency of the cooling medium, and ensure the continuity and stability of the cooling process. The multidirectional coverage of the cooling flow channel helps to balance the temperature of each part of the machine tool body 12, avoids local overheating or overcooling, and improves the overall thermal stability and machining quality of the machine tool. The cooling flow channel design of the present application allows the cooling medium to form a vortex effect, improves the contact area and heat exchange efficiency of the cooling medium and the surface of the machine tool body 12, and further enhances the cooling effect. Precise fluid dynamics calculation and optimization ensure the best flow state of the cooling medium in the flow channel, reduce the flow resistance, and improve the energy efficiency ratio of the cooling system. By optimizing the layout of the cooling flow channel, the present application can also reduce the consumption of cooling medium, reduce the maintenance cost, and improve the economy and environmental protection of the cooling system. In summary, the present application realizes uniform distribution of cooling medium in the width and length directions of the machine tool body by designing a complex third cooling flow channel, effectively improves the cooling efficiency and machining precision, and reduces energy consumption and maintenance cost, providing a more efficient, intelligent and environmentally friendly machine tool thermal management solution for modern manufacturing industry.

[0102] Further, the fourth cooling flow channel comprises:

[0103] Two U-shaped segments, the U-shaped openings of the two U-shaped segments are arranged towards the third cooling flow channel;

[0104] A connecting segment, the connecting segment connects the two U-shaped segments;

[0105] A transition segment, the transition segment comprises a first subsegment extending along the length direction of the machine tool body 12 and a second subsegment extending along the width direction of the machine tool body 12, and the third cooling flow channel and the fourth cooling flow channel are connected through the transition segment.

[0106] Specifically, in further embodiments of the present application, a fourth cooling flow channel comprising two U-shaped segments, a connecting segment and a transition segment is designed to enhance the coverage range and heat exchange efficiency of the cooling medium on the machine tool body 12, realize more comprehensive temperature control, and the structure design of the U-shaped segment can ensure the circulation flow of the cooling medium in the flow channel, improve the cooling efficiency.

[0107] The connecting section serves to connect the two U-shaped sections, forming a continuous flow channel. The design of the connecting section needs to ensure smooth transition of the cooling medium between the two U-shaped sections, avoiding turbulence or stagnation, thereby improving the uniformity and efficiency of the cooling process. The transition section is a key part that connects the third cooling flow channel and the fourth cooling flow channel. The transition section is composed of a first section and a second section, the first section extends along the length direction of the machine tool body 12, while the second section extends along the width direction. This design ensures that the cooling medium can cover multiple directions of the machine tool body 12 when transitioning from the third cooling flow channel to the fourth cooling flow channel, achieving a more comprehensive cooling effect. The design of the transition section should also consider the fluid resistance in the flow channel to ensure smooth transition of the cooling medium between different flow channels, avoiding unnecessary pressure loss.

[0108] In specific implementation, the layout of the fourth cooling flow channel should be optimized according to the heat source distribution and structural characteristics of the machine tool body 12. For example, the position of the U-shaped section can be set in the high-temperature area of the machine tool body 12, and the length and width of the transition section should be adjusted according to the flow and speed requirements of the cooling medium to ensure the best flow state of the medium in the flow channel.

[0109] The combination of the two U-shaped sections and the transition section forms a complex and comprehensive cooling network that can cover multiple heat source areas of the machine tool body 12, achieving multidirectional heat exchange of the cooling medium and effectively improving the cooling efficiency and machining precision. The design of the U-shaped section allows the cooling medium to form a circulating flow, not only increasing the contact area between the cooling medium and the machine tool body 12, but also making the cooling process more uniform, avoiding local overcooling or overheating problems, and improving the thermal stability and machining quality of the machine tool. The connection of the fourth cooling flow channel and the third cooling flow channel forms a more complex cooling medium flow path, which helps to improve the circulation efficiency of the cooling medium, reduces the flow channel resistance, and improves the energy efficiency ratio of the system. The design of the transition section ensures smooth transition of the cooling medium between different flow channels, avoiding turbulence or pressure loss during the transition process, and improving the continuity and stability of the cooling process. By optimizing the flow channel layout and cooling medium flow, the cooling flow channel design of the present application can achieve precise control of the temperature of the machine tool body 12, reducing the influence of thermal deformation on machining precision, and improving the quality and production efficiency of products. The cooling flow channel design of the present application can also reduce the consumption of cooling medium, reduce maintenance cost, and improve the economy and environmental protection of the cooling system.

[0110] Further, the cooling device comprises a heat exchange unit;

[0111] The heat exchange unit is used in cooperation with the medium supply unit through the heat exchanger 2 to exchange heat with the heat source flowing out from the second channel unit, and deliver the heat source after heat exchange to the medium supply unit to form the cooling medium.

[0112] Specifically, the present application realizes a closed-loop cooling medium circulation by cooperating the heat exchanger 2 with the medium supply unit. In specific implementation, the heat source (i.e. the cooling medium carrying the heat inside the machine tool body 12) flows out from the second channel unit after completing the cooling of the machine tool body 12, and is guided to the heat exchanger 2. In the heat exchanger 2, the heat source exchanges heat with the cold source in the external medium supply unit, releases the heat it carries, thereby reducing the temperature, and the cooling medium after heat exchange is then transported back to the medium supply unit, and is supplied again to the cooling channel structure, circulating back and forth, forming an efficient and continuous cooling process.

[0113] The addition of the heat exchange unit in the present application forms a closed-loop circulation of the cooling system, ensuring the continuous supply and temperature control of the cooling medium, improving the cooling efficiency and stability of the machine tool body 12. The design of the heat exchanger 2 greatly enhances the heat exchange capacity of the system, which can quickly cool the heat source flowing out from the second channel unit, thereby ensuring the temperature drop of the cooling medium in the circulation process, effectively controlling the thermal deformation of the machine tool body 12. Through the temperature control of the cooling medium by the heat exchange unit, the temperature fluctuation of the cooling medium in the circulation process is avoided, the influence on the thermal stability of the machine tool body is reduced, and the machining precision and product quality are improved.

[0114] Further, the heat exchange unit comprises a heat exchange pipeline.

[0115] The heat exchange pipeline is sequentially provided with a compressor 4 and a condenser 3 along the flow direction of the heat source, to exchange heat with the heat source flowing out from the outlet end of the cooling channel structure; and / or,

[0116] A condenser fan 5 is arranged on one side of the condenser 3 to exchange heat with the heat source entering the condenser 3.

[0117] Specifically, the heat exchange unit is realized by the cooperation of the heat exchange pipeline with the compressor 4, the condenser 3 and the condenser fan 5, to realize efficient cooling of the heat source (i.e. the cooling medium carrying heat) flowing out from the outlet end of the cooling channel structure.

[0118] In a specific implementation, the heat exchange pipeline is a path for the flow of the cooling medium, and the structure thereof is designed to ensure smooth flow of the fluid while reducing heat loss. The compressor 4 is arranged on the heat exchange pipeline and is used to increase the pressure and temperature of the heat source (cooling medium) so as to make the heat source into a high-temperature and high-pressure gas, facilitating subsequent heat exchange. The condenser 3 is located behind the compressor 4 and is used to exchange heat between the high-temperature and high-pressure gas output by the compressor 4 and the external environment, release heat, and liquefy the cooling medium again so as to facilitate recycling. In order to improve the heat exchange efficiency of the condenser 3, the design further includes a condensing fan 5 which is installed on one side of the condenser 3 and accelerates the cooling process of the heat source by forced air flow, so as to ensure that the cooling medium can quickly release heat when passing through the condenser 3 and restore to a cooling state.

[0119] By arranging the compressor 4, the condenser 3, and the condensing fan 5 in the heat exchange unit, the cooling efficiency of the heat source flowing out of the cooling channel structure can be improved, the temperature of the cooling medium can be quickly reduced to a cooling state, the circulation efficiency and cooling effect of the cooling system can be improved, the pressure and temperature of the cooling medium can be increased by the compressor 4, necessary conditions for subsequent heat exchange process are provided, and effective circulation of the cooling medium in the heat exchange pipeline is ensured. The forced air flow design of the condensing fan 5 effectively improves the heat exchange capacity of the condenser 3, ensures the temperature stability of the cooling medium even in a high-temperature or high-humidity working environment, and enhances the adaptability and reliability of the cooling system. By cooperation of the compressor 4, the condenser 3, and the condensing fan 5, the temperature of the cooling medium can be accurately controlled, temperature fluctuation of the cooling medium in the circulation process is avoided, thermal deformation of the machine tool body 12 caused by temperature change is reduced, and the precision and stability of the machine tool are improved.

[0120] Further, the heat exchange unit further includes a filtering component 6, an inlet of the filtering component 6 is in communication with an outlet of the condenser 3, and an outlet end of the filtering component 6 is used to communicate with an inlet end of the second heat exchange channel of the heat exchanger 2, so as to filter the liquid condensed from the condenser 3 and form a cold source to be delivered into the second heat exchange channel of the heat exchanger 2.

[0121] A first temperature detection component 13 is arranged on the machine tool body 12 to detect the real-time temperature at the position where the first channel unit is arranged on the machine tool body 12.

[0122] A control valve 7 is arranged between the filtering component 6 and the inlet end of the second heat exchange channel of the heat exchanger 2, and the control valve 7 is connected with the first temperature detection component 13 to control the flow of the cold source into the second heat exchange channel according to the detection result of the first temperature detection component 13.

[0123] Specifically, in the further optimization of the present application, the heat exchange unit is designed more finely and intelligently to improve the overall performance of the cooling device. The heat exchange unit is additionally provided with a filtering component 6, a first temperature detection component 13 and a control valve 7. The addition of these components makes the operation of the cooling device more efficient, stable and controllable.

[0124] The filtering component 6 is arranged between the outlet of the condenser 3 and the inlet end of the second heat exchange channel of the heat exchanger 2. Its function is to filter the liquid (cooling source) condensed from the condenser 3 to remove impurities or small particles that may exist therein, so as to ensure the purity of the cooling medium and avoid the blocking of the heat exchanger 2 by impurities, which affects the heat exchange efficiency and the long-term stable operation of the cooling system. The filtering component 6 can adopt various suitable filtering materials and structures, such as fine filter screens or filter cartridges, to meet the filtering needs of different cooling media.

[0125] The first temperature detection component 13 is installed in the area of the machine tool body 12 where the first channel unit is arranged, for real-time monitoring of the temperature change of this area. By detecting the real-time temperature of the machine tool body 12, the cooling effect can be understood in time, providing data support for subsequent flow control. The first temperature detection component 13 is a temperature detector.

[0126] The control valve 7 is located between the filtering component 6 and the inlet end of the second heat exchange channel of the heat exchanger 2, and is signal-connected with the first temperature detection component 13, which can automatically adjust the flow of the cooling source into the second heat exchange channel according to the temperature detection result. When the temperature of the machine tool body 12 is detected to be too high, the control valve 7 will increase the flow of the cooling source to speed up the cooling process; on the contrary, when the temperature is lower than the set value, the control valve 7 will reduce the flow to avoid overcooling, ensuring that the temperature of the machine tool body is controlled within the optimal range, and improving the intelligence and efficiency of the entire cooling system.

[0127] The addition of the filtering component 6 in the present application ensures the purity of the cooling source, reduces the maintenance frequency of the heat exchanger 2, avoids the decrease of heat exchange efficiency caused by impurities, prolongs the service life of the cooling device, the real-time temperature detection function of the first temperature detection component 13 can quickly feedback the temperature change of the machine tool body 12, providing accurate data for the control of the cooling device, ensuring the accuracy of temperature control, the control valve 7 automatically adjusts the flow of the cooling source according to the real-time temperature, realizing the accurate supply of the cooling medium, avoiding the situation of overcooling or insufficient cooling, improving the energy utilization efficiency of the cooling system. Through the comprehensive application of filtering, temperature detection and flow control, the present application can ensure the efficient and stable flow of the cooling medium in the cooling cycle, effectively control the thermal deformation of the machine tool body, and improve the machining precision and stability of the machine tool.

[0128] Further, the medium supply unit comprises a cooling water tank 8, an inlet of the cooling water tank 8 being communicated with an outlet end of the first heat exchange channel of the heat exchanger 2 to store the heat source after heat exchange;

[0129] An outlet of the cooling water tank 8 is communicated with an inlet pipeline 9, an outlet of the inlet pipeline 9 being communicated with an inlet end of the first channel unit to deliver the cooling medium in the cooling water tank 8 into the first channel unit.

[0130] Specifically, the design of the medium supply unit is crucial to ensure the stable operation of the cooling device and the effective utilization of the cooling medium. The medium supply unit in the present application mainly comprises the cooling water tank 8 and the inlet pipeline 9, which work cooperatively to form a storage and circulating delivery mechanism for the cooling medium. The cooling water tank 8 serves as a storage container for the cooling medium, and its inlet is tightly connected with the outlet end of the first heat exchange channel of the heat exchanger 2. In the cooling cycle, the heat source (i.e. the cooling medium carrying the heat of the machine tool body 12) is cooled and converted into a cold source after heat exchange in the heat exchanger 2, and then enters the cooling water tank 8 for storage. The cooling water tank 8 should have sufficient capacity to store the cooling medium required for circulation, and should be equipped with temperature monitoring equipment to monitor the temperature state of the cooling medium in the cooling water tank 8 in real time, to ensure that it can meet the cooling needs of the machine tool.

[0131] The outlet of the cooling water tank 8 is connected with the inlet pipeline 9, through which the cooling medium stored in the tank is delivered to the inlet end of the first channel unit.

[0132] The cooling water tank 8 as a storage container for the cooling medium can ensure the stable supply of the cooling medium during the circulation process, avoiding the decline of the cooling effect caused by insufficient medium, and improving the reliability of the cooling system. The connection design of the cooling water tank 8 and the heat exchanger 2 enables the cooling medium to be quickly stored and cooled after heat exchange, reducing the time for the medium temperature to recover, and improving the response speed and efficiency of the cooling system. The provision of the medium supply unit reduces the waste of cooling medium, improves the economy and environmental protection of the system by recycling the cooled medium, and the design of the cooling water tank 8 and the inlet pipeline 9 can adapt to changes in different processing conditions and environmental temperatures, enhancing the adaptability and flexibility of the cooling system.

[0133] Further, the medium supply unit further comprises an alarm component;

[0134] A liquid level detection component is arranged in the cooling water tank 8 and connected with the alarm component to issue an alarm indication through the alarm component when the liquid level of the cooling medium in the cooling water tank 8 is lower than the set liquid level.

[0135] Specifically, the alarm system for the medium unit is an important part of ensuring the normal operation and maintenance of the cooling equipment. By monitoring the liquid level in the cooling water tank 8 in real time, when the liquid level of the cooling medium is lower than the set liquid level, an alarm can be sent in time to prevent cooling failure caused by insufficient cooling medium. The integrated design of the alarm component and the liquid level detection component makes the monitoring and early warning of the cooling equipment more automated and intelligent. In practical applications, the liquid level detection component can be a float type liquid level switch, an ultrasonic liquid level meter or a capacitive liquid level sensor, etc. They are installed inside the cooling water tank 8 and can continuously monitor the liquid level of the cooling medium in the tank. When the detected liquid level is lower than the set liquid level, the liquid level detection component will send a signal to the alarm component to trigger an alarm and remind the operator or maintenance personnel to replenish the cooling medium in time to avoid the cooling system from stopping running due to insufficient medium, thereby ensuring the continuous and stable operation of the cooling system. The alarm component can be an audible and visual alarm connected to the liquid level detection component to receive the alarm signal sent by the liquid level detection component. When the liquid level of the cooling medium is too low, the alarm will be started immediately and an obvious audible and visual prompt will be given to ensure that the operator or maintenance personnel can quickly notice the warning information and take timely measures.

[0136] Through the integration of the liquid level detection component and the alarm component, the present application can monitor the liquid level of the cooling medium in real time and give an early warning of insufficient cooling medium in time to avoid cooling failure caused by insufficient medium and ensure the normal operation of the cooling system. The setting of the alarm component improves the response speed of the operator or maintenance personnel to the state of the cooling medium and reduces the risk of system operation interruption or machine damage caused by untimely monitoring. The real-time liquid level monitoring and early warning mechanism helps the maintenance personnel to plan the replenishment time of the cooling medium in advance and avoids the cumbersome operation of temporary replenishment of the cooling medium, thereby improving the maintenance efficiency and the stability of the system operation. The high-precision liquid level detection component ensures accurate monitoring of the liquid level of the cooling medium and reduces false alarms or missed alarms caused by monitoring errors, thereby improving the reliability and safety of the system. The audible and visual prompt function of the alarm component ensures that the warning information can be clearly received in a noisy working environment, even at night or in insufficient light conditions, so as to timely remind the operator or maintenance personnel and ensure the all-weather monitoring of the system. Through the liquid level detection and early warning, the present application can effectively avoid the excessive consumption and waste of the cooling medium, reduce the maintenance cost and improve the economy and environmental protection of the cooling system. The automated design of the liquid level detection component and the alarm component reduces manual intervention, reduces the operation difficulty and improves the intelligent level of the system, which is conducive to improving the production efficiency and the comfort of the working environment.

[0137] Further, the medium supply unit further comprises: an outlet pipeline 10, one end of the outlet pipeline 10 is in communication with the outlet end of the second channel unit, and the other end of the outlet pipeline 10 is in communication with the inlet end of the first heat exchange channel of the heat exchanger 2.

[0138] The first temperature detection component 13 is arranged on the machine tool body 12 to detect the real-time temperature at the position where the first channel unit is arranged on the machine tool body 12.

[0139] The pump body 11 is arranged on the liquid outlet pipeline 10 and connected with the first temperature detection component 13 to control the power of the pump body 11 according to the detection result of the first temperature detection component 13.

[0140] The application also provides a machine tool cooling method, which is suitable for the machine tool device and comprises the following steps:

[0141] S1, detecting the first real-time temperature of the cooling medium in the cooling water tank 8 of the medium supply unit of the machine tool device;

[0142] S2, when the first real-time temperature is greater than or less than the set temperature value, calculating the first temperature difference between the first real-time temperature and the set temperature value, and controlling the operation frequency of the compressor 4 of the heat exchange unit according to the first temperature difference until the first real-time temperature reaches the set temperature value;

[0143] S3, detecting whether the machine tool body 12 of the machine tool device is started;

[0144] S4, when it is detected that the machine tool body 12 is started, controlling the medium supply unit of the machine tool device to deliver the cooling medium into the cooling channel group to cool the machine tool body 12;

[0145] Specifically, the second real-time temperature of the liquid inlet pipeline 9 of the medium supply unit or the third real-time temperature of the liquid outlet pipeline 10 is detected;

[0146] The fourth real-time temperature at the position where the first channel unit is arranged on the machine tool body 12 is detected;

[0147] The second temperature difference between the second real-time temperature or the third real-time temperature and the fourth real-time temperature is calculated;

[0148] The historical temperature value of the machine tool body 12 is obtained, and the historical temperature value is the temperature value of the machine tool body 12 in the previous 60 seconds;

[0149] The temperature change rate between the fourth real-time temperature and the historical temperature value is calculated;

[0150] The operation frequency of the compressor 4 of the heat exchange unit is controlled according to the temperature change rate and the second temperature difference;

[0151] Specifically, when the temperature change rate is greater than or equal to the first set value, the compressor 4 of the heat exchange unit is controlled to increase in sequence with 1HZ as the set frequency of the compressor 4 based on the initial frequency; and / or,

[0152] when the temperature change rate is less than or equal to the second set value, the compressor 4 of the heat exchange unit is controlled to decrease by 1HZ from the highest frequency as the set frequency of the compressor 4 in sequence; and / or,

[0153] when the temperature change rate is greater than the second set value and less than or equal to the first set value, the compressor 4 of the heat exchange unit is controlled to operate at the current frequency.

[0154] Specifically, the present application provides a machine tool cooling method, which not only considers the temperature of the cooling medium, but also comprehensively considers the real-time temperature change and historical temperature trend of the machine tool body, so as to realize dynamic adjustment of the operating frequency of the compressor 4 to meet the cooling demand under different working conditions.

[0155] Firstly, the liquid level in the cooling water tank 8 is monitored by using the liquid level detection component to ensure the sufficiency of the cooling medium. At the same time, the first real-time temperature of the cooling medium in the cooling water tank 8 is detected by the first temperature detection component 13, and compared with the set temperature value. If the first real-time temperature deviates from the set temperature value, the operating frequency of the compressor 4 is automatically adjusted according to the first temperature difference until the temperature of the cooling medium returns to the vicinity of the set temperature value. This adjustment can be based on a pre-set algorithm or rule, for example, when the first real-time temperature is higher than the set value, the frequency of the compressor 4 is increased, and vice versa, to ensure stable control of the temperature of the cooling medium.

[0156] Then, the operating state of the machine tool body 12 is detected, and when the machine tool is started, the medium supply unit is activated to deliver the cooling medium to the cooling channel group through the pump body 11. In this process, the system further detects the second real-time temperature of the liquid inlet pipeline 9 or the third real-time temperature of the liquid outlet pipeline 10, and the fourth real-time temperature at the first channel unit provided on the machine tool body 12. These temperature data are collected by the liquid level detection component and the first temperature detection component 13.

[0157] Next, the second temperature difference between the second real-time temperature or the third real-time temperature and the fourth real-time temperature, and the temperature change rate between the fourth real-time temperature and the historical temperature value (i.e. the temperature value of the previous 60 seconds) of the machine tool body 12 are calculated. The calculation of these data provides a key basis for controlling the frequency of the compressor 4 of the heat exchange unit. By continuously monitoring the temperature change rate and the second temperature difference, the change of the thermal load of the machine tool body can be more accurately evaluated to adaptively adjust the operating frequency of the compressor 4.

[0158] Specifically, when the temperature change rate is greater than or equal to the first set value, it indicates that the temperature of the machine tool body is rising rapidly, and the cooling intensity needs to be increased. At this time, the operating frequency of the compressor 4 is gradually increased by 1HZ from the initial frequency until the cooling effect meets the demand, i.e. the temperature change rate decreases to below the first set value.

[0159] When the temperature change rate is less than or equal to the second set value, it indicates that the temperature of the machine tool body 12 tends to be stable or decreases, at this time, the operating frequency of the compressor 4 gradually decreases by 1HZ based on the highest frequency, to avoid excessive cooling.

[0160] When the temperature change rate is between the second set value and the first set value, the compressor 4 maintains the current frequency operation, which indicates that the current cooling intensity is sufficient to cope with the thermal load change of the machine tool body, and the system is in a stable state.

[0161] The cooling method of the present application realizes dynamic balance of the cooling process through adjustment of the operating frequency of the compressor 4, effectively copes with the thermal load fluctuation of the machine tool body 12 due to changes in machining conditions, and improves the adaptability and efficiency of the cooling effect. By real-time monitoring and calculating the temperature difference and change rate of the cooling medium and the machine tool body 12, the cooling method can accurately assess the cooling demand, avoid excessive cooling or insufficient cooling, reduce energy consumption, and improve the energy efficiency ratio of the system. The introduction of historical temperature values enables the system to intelligently predict future thermal load changes based on the recent temperature trend of the machine tool body 12, adjust the cooling strategy in advance, and improve the response speed and control accuracy of the system. The dynamic adjustment mechanism of the frequency of the compressor 4 not only quickly responds to the temperature change of the machine tool body 12, but also reduces the frequent start and stop of the compressor 4, prolongs the service life of the compressor 4, and reduces the maintenance cost. The cooling method can effectively reduce the decrease in machining precision caused by thermal deformation of the machine tool body 12, improve product quality and production efficiency, and enhance the economic efficiency and competitiveness of the machine tool. Intelligent cooling control reduces manual intervention, simplifies the operation process, improves the automation level of the system, and reduces the operation difficulty, which is conducive to improving the production efficiency and the working environment comfort of the operator.

[0162] In summary, the machine tool cooling method of the present application realizes intelligent adjustment of the operating frequency of the compressor 4 by comprehensively monitoring the temperature changes of the cooling medium and the machine tool body 12, not only effectively improves the machining precision and stability of the machine tool, but also reduces energy consumption and maintenance cost, has significant economic benefits and environmental advantages, is suitable for efficient cooling demand of various machine tools, and has wide industrial application value.

[0163] It should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a presence of the features, steps, operations, devices, components and / or combinations thereof.

[0164] The foregoing is considered as illustrative only of the principles of the application. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the application to the exact construction and practice described. Accordingly, all such variations are intended to be included within the scope of the present application as defined in the following claims, along with full equivalents thereof.

[0165] In the description of the present application, it is to be understood that the orientation or positional relationships indicated by terms such as "front", "back", "up", "down", "left", "right", "lateral", "vertical", "horizontal", "top", "bottom", and the like are generally based on the orientation or positional relationships shown in the drawings, and are merely intended to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of protection of the present application. The orientation terms "inner", "outer" refer to the inner and outer relative to the contour of the components themselves.

[0166] For the convenience of description, spatial relative terms such as "above", "upper", "top", "up", "lower", "bottom", and the like can be used herein to describe the spatial position relationship of one device or feature with respect to other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device as described in the drawings. For example, if the device in the drawings is inverted, the device described as "above" or "on" other devices or structures will be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0167] In addition, it should be noted that the use of the terms "first", "second", and the like do not have a special meaning, and therefore should not be construed as limiting the scope of protection of the present application, unless otherwise stated.

[0168] The above merely provides the preferred embodiments of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the principles and technical scope of the present application shall fall into the scope of the present application.

Claims

1. A machine tool apparatus, characterized by, The machine tool device comprises: a machine tool body (12) provided with a cooling channel structure; a cooling device provided with a medium supply unit for supplying cooling medium to the cooling channel group to cool the machine tool body (12); wherein the cooling channel structure comprises a first channel unit and a second channel unit in communication, the first channel unit is located in the middle of the machine tool body (12), and the second channel unit is arranged on both sides of the machine tool body (12), and the flow cross section of the first channel unit is larger than that of the second channel unit; the first channel unit comprises two first cooling flow channels (101) extending along the width direction of the machine tool body (12), and a second cooling flow channel (102) extending along the length direction of the machine tool body (12) to communicate the two first cooling flow channels (101); the second channel unit comprises a third cooling flow channel and a fourth cooling flow channel, and the third cooling flow channel and the fourth cooling flow channel are communicated through the two first cooling flow channels; the third cooling flow channel comprises a first part extending along the width direction of the machine tool body (12), a second part extending along the length direction of the machine tool body (12), a third part extending along the width direction of the machine tool body (12), and a fourth part extending along the length direction of the machine tool body (12), wherein the first part, the second part, the third part and the fourth part are communicated in sequence to form the third cooling flow channel; the fourth cooling flow channel comprises two U-shaped segments, the U-shaped openings of the two U-shaped segments are arranged towards the third cooling flow channel, a connecting segment for communicating the two U-shaped segments, and a transition segment comprising a first segment extending along the length direction of the machine tool body (12) and a second segment extending along the width direction of the machine tool body (12), and the third cooling flow channel and the fourth cooling flow channel are communicated through the transition segment.

2. The machine tool device according to claim 1, wherein the distance between the two ends of the two first cooling flow channels (101) and the side walls of the machine tool body (12) corresponding thereto along the length direction thereof is 90-100 mm; the flow cross section is circular, and the diameter of the flow cross section of the first channel unit is 16-18 mm.

3. The machine tool apparatus according to claim 1, characterized by The cooling device comprises: a heat exchange unit; the heat exchange unit is used in cooperation with the medium supply unit through a heat exchanger (2) to exchange heat of the heat source flowing out of the second channel unit, and the heat source after heat exchange is delivered into the medium supply unit to form the cooling medium.

4. The machine tool apparatus according to claim 3, characterized by The heat exchange unit comprises: a heat exchange pipeline; the heat exchange pipeline is sequentially provided with a compressor (4) and a condenser (3) along the flow direction of the heat source to exchange heat of the heat source flowing out of the outlet end of the cooling channel structure. A condensing fan (5) is arranged on one side of the condenser (3) to exchange heat with the heat source entering the condenser (3).

5. Machine tool apparatus according to claim 4, characterized in that The heat exchange unit further comprises: A filtering component (6) is arranged in communication with the outlet of the condenser (3), and the outlet end of the filtering component (6) is arranged in communication with the inlet end of the second heat exchange channel of the heat exchanger (2) to filter the liquid condensed from the condenser (3) and form a cold source to be delivered into the second heat exchange channel of the heat exchanger (2).

6. The machine tool apparatus according to claim 5, characterized by The heat exchange unit further comprises: A first temperature detecting component (13) is arranged on the machine tool body (12) to detect the real-time temperature at the position where the first channel unit is arranged on the machine tool body (12); A control valve (7) is arranged between the filtering component (6) and the inlet end of the second heat exchange channel of the heat exchanger (2), and the control valve (7) is connected with the first temperature detecting component (13) to control the flow of the cold source into the second heat exchange channel according to the detection result of the first temperature detecting component (13).

7. The machine tool apparatus according to claim 3, characterized by The medium supply unit comprises: A cooling water tank (8) is arranged in communication with the outlet end of the first heat exchange channel of the heat exchanger (2) to store the heat source after heat exchange; The water outlet of the cooling water tank (8) is communicated with a liquid inlet pipeline (9), and the water outlet of the liquid inlet pipeline (9) is communicated with the inlet end of the first channel unit to deliver the cooling medium in the cooling water tank (8) into the first channel unit.

8. Machine tool apparatus according to claim 7, characterized in that The medium supply unit further comprises: An alarm component; A liquid level detecting component is arranged in the cooling water tank (8) and connected with the alarm component to send an alarm indication through the alarm component when the liquid level of the cooling medium in the cooling water tank (8) is lower than the set liquid level.

9. The machine tool apparatus according to claim 3, characterized by The medium supply unit further comprises: A liquid outlet pipeline (10) is arranged in communication with the outlet end of the second channel unit at one port and in communication with the inlet end of the first heat exchange channel of the heat exchanger (2) at the other port; A first temperature detecting component (13) is arranged on the machine tool body (12) to detect the real-time temperature at the position where the first channel unit is arranged on the machine tool body (12); A pump body (11) is arranged on the liquid outlet pipeline (10) and connected with the first temperature detecting component (13) to control the power of the pump body (11) according to the detection result of the first temperature detecting component (13).

10. A machine tool cooling method, characterized by, The machine tool cooling method is suitable for the machine tool device in any one of the above claims 1 to 6, and the cooling method comprises: Detecting whether the machine tool body (12) of the machine tool device is started; When it is detected that the machine tool body (12) is started, controlling the medium supply unit of the machine tool device to deliver the cooling medium into the cooling channel group to cool the machine tool body (12).

11. The machine tool cooling method according to claim 10, characterized by, The detection of the machine tool body (12) of the machine tool equipment whether to start the step before, including: Detect the first real-time temperature of the cooling medium in the cooling water tank (8) of the medium supply unit of the machine tool equipment; When the first real-time temperature is greater than or less than the set temperature value, calculate the first temperature difference value between the first real-time temperature and the set temperature value, and control the operating frequency of the compressor (4) of the heat exchange unit according to the first temperature difference value until the first real-time temperature reaches the set temperature value.

12. The machine tool cooling method according to claim 10, characterized by, The step of cooling the machine tool body (12) includes: Detect the second real-time temperature of the liquid inlet pipeline (9) or the third real-time temperature of the liquid outlet pipeline (10) of the medium supply unit; Detect the fourth real-time temperature at the first channel unit provided on the machine tool body (12); Calculate the second temperature difference value between the second real-time temperature or the third real-time temperature and the fourth real-time temperature; Obtain the historical temperature value of the machine tool body (12), which is the temperature value of the machine tool body (12) in the previous 60S of the current time; Calculate the temperature change rate between the fourth real-time temperature and the historical temperature value; Control the operating frequency of the compressor (4) of the heat exchange unit according to the temperature change rate and the second temperature difference value.

13. The machine tool cooling method according to claim 12, characterized by, The control of the operating frequency of the compressor (4) according to the temperature change rate and the second temperature difference value includes: When the temperature change rate is greater than or equal to the first set value, control the compressor (4) to increase in turn by taking the initial frequency as the basis and taking 1HZ as the set frequency of the compressor (4); When the temperature change rate is less than or equal to the second set value, control the compressor (4) to decrease in turn by taking the highest frequency as the basis and taking 1HZ as the set frequency of the compressor (4); When the temperature change rate is greater than the second set value and less than or equal to the first set value, control the compressor (4) to operate at the current frequency.

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