Machine tool equipment and machine tool cooling method

Abstract

The invention provides machine tool equipment and a machine tool cooling method. The machine tool equipment comprises a machine tool body, and a cooling channel structure is arranged on the machine tool body; the cooling equipment is provided with a medium supply unit, and a cooling medium is conveyed into the cooling channel group through the medium supply unit so as to cool the machine tool body; the cooling channel structure comprises a first channel unit and second channel units which are communicated, the first channel unit is located in the middle of the machine tool body, the second channel units are arranged on the two sides of the machine tool body, and the circulation section of the first channel unit is larger than that of the second channel units. The problem that in the prior art, thermal deformation can occur in the using process of a machine tool is solved.

Description

Technical Field

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

[0002] In modern manufacturing, machine tools are key equipment for high-precision parts processing. However, thermal deformation of machine tool castings has always been an important factor affecting machining accuracy. Thermal deformation of machine tool castings is mainly caused by uneven temperature rise in various parts of the machine tool. There are many reasons for this uneven temperature rise, including heating of the motor, friction heating of gears and bearings in the spindle box, and cutting heat during the cutting process. These heat sources cause uneven temperature distribution in various parts of the machine tool casting, which in turn generates thermal stress and causes deformation of the machine tool casting.

[0003] The negative impact of thermal deformation of machine tool castings on processing is mainly reflected in the following aspects:

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

[0005] 2. Change the matching clearance between the various parts of the machine tool, increase the friction and wear between the moving parts;

[0006] 3. Affect the overall stability of the machine tool, causing the machine tool to vibrate and make noise during the processing, reducing work efficiency and processing quality.

[0007] At present, in order to control the thermal deformation of machine tool castings, the methods commonly used in the industry include optimizing the spindle structure design, increasing the overall rigidity of the machine tool, using high-precision sensors for temperature monitoring, etc. However, these methods can often only partially alleviate the problem of thermal deformation, and in some cases, such as when the machine tool is running continuously for a long time or working in a high temperature environment, the effect is not ideal. Summary of the invention

[0008] The main purpose of the present invention 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.

[0009] In order to achieve the above object, according to one aspect of the present invention, a machine tool device is provided, comprising:

[0010] The machine tool body is provided with a cooling channel structure;

[0011] A cooling device, wherein the cooling device has a medium supply unit, and a cooling medium is transported into the cooling channel group through the medium supply unit to cool the machine tool body;

[0012] Among them, the cooling channel structure includes a first channel unit and a second channel unit that are connected. 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 the flow cross-section of the second channel unit.

[0013] Furthermore, the first channel unit includes:

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

[0015] A second cooling channel, the second cooling channel extending along the length direction of the machine tool body to connect the two first cooling channels;

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

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

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

[0019] Further, the third cooling channel includes: a first section, the first section extending along the width direction of the machine tool body;

[0020] A second subsection extending along the length direction of the machine tool body;

[0021] A third section, the third section extending along the width direction of the machine tool body;

[0022] The fourth section extends along the length direction of the machine tool body;

[0023] The first section, the second section, the third section and the fourth section are connected in sequence to form a third cooling channel.

[0024] Furthermore, the fourth cooling channel includes:

[0025] Two U-shaped sections, wherein the U-shaped openings of the two U-shaped sections are arranged toward the third cooling channel;

[0026] A connecting section, which connects the two U-shaped sections;

[0027] A transition section includes a first section extending along the length direction of the machine tool body and a second section extending along the width direction of the machine tool body, and the third cooling channel is connected with the fourth cooling channel through the transition section.

[0028] Further, the cooling device comprises:

[0029] Heat exchange unit;

[0030] The heat exchange unit cooperates with the medium supply unit through a heat exchanger to exchange heat with the heat source flowing out of the second channel unit, and transports the heat source after heat exchange to the medium supply unit to form a cooling medium.

[0031] Furthermore, the heat exchange unit comprises:

[0032] Heat exchange pipes;

[0033] A compressor and a condenser are sequentially arranged on the heat exchange pipeline along the flow direction of the heat source to exchange heat with the heat source flowing out of the outlet end of the cooling channel structure; and / or,

[0034] The condensing fan is arranged on one side of the condenser to exchange heat with the heat source entering the condenser.

[0035] Furthermore, the heat exchange unit also includes:

[0036] A filter component, the inlet of the filter component is connected to the outlet of the condenser, and the outlet end of the filter component is used to communicate with the inlet end of the second heat exchange channel of the heat exchanger to filter the liquid after condensation from the condenser and form a cold source to be transported to the second heat exchange channel of the heat exchanger.

[0037] Furthermore, the heat exchange unit also includes:

[0038] A first temperature detection component is provided on the machine tool body to detect the real-time temperature of a location where the first channel unit is provided on the machine tool body;

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

[0040] Further, the medium supply unit includes:

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

[0042] The water outlet of the cooling water tank is connected with a liquid inlet pipe, and the water outlet of the liquid inlet pipe is connected with the inlet end of the first channel unit to transport the cooling medium in the cooling water tank to the first channel unit.

[0043] Furthermore, the medium supply unit further includes:

[0044] Alarm components;

[0045] The liquid level detection component is arranged in the cooling water tank and is connected to the alarm component so that when the liquid level of the cooling medium in the cooling water tank is lower than the set liquid level, the alarm component will issue an alarm indication.

[0046] Furthermore, the medium supply unit further includes:

[0047] a liquid outlet pipe, one port of which is connected to the outlet port of the first channel unit, and the other port of which is connected to the inlet port of the first heat exchange channel of the heat exchanger;

[0048] A first temperature detection component is provided on the machine tool body to detect the real-time temperature of a location where the first channel unit is provided on the machine tool body;

[0049] The pump body is arranged on the liquid outlet pipeline and is connected to the first temperature detection component to control the power of the pump body according to the detection result of the first temperature detection component.

[0050] According to another aspect of the present invention, a machine tool cooling method is provided, which is applied to the above-mentioned machine tool equipment, and the cooling method comprises:

[0051] Check whether the machine tool body of the machine tool equipment is started;

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

[0053] Furthermore, before the step of detecting whether the machine tool body of the machine tool equipment is started, the method includes:

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

[0055] When it is determined that the first real-time temperature is greater than or less than the set temperature value, a first temperature difference between the first real-time temperature and the set temperature value is calculated to control 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] Furthermore, the step of cooling the machine tool body comprises:

[0057] Detecting a second real-time temperature of a liquid inlet pipe or a third real-time temperature of a liquid outlet pipe of a medium supply unit;

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

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

[0060] Get the historical temperature value of the machine tool body, which is the temperature value of the machine tool body 60 seconds before the current moment;

[0061] Calculating a temperature change rate between a fourth real-time temperature and a historical temperature value;

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

[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 includes:

[0064] When it is determined that the temperature change rate is greater than or equal to the first set value, the compressor is controlled to increase in sequence with 1 Hz as the set frequency of the compressor based on the initial frequency; and / or,

[0065] When it is determined that the temperature change rate is less than or equal to the second set value, the compressor is controlled to take the highest frequency as the reference and 1 Hz as the set frequency of the compressor to decrease in sequence; and / or,

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

[0067] By applying the technical solution of the present invention, the present application designs a unique cooling channel structure inside the machine tool body, and the present invention can effectively improve the cooling efficiency, reduce the thermal deformation of the machine tool body, and thus improve the machine tool processing accuracy. The difference in the flow cross-section design of the first channel unit and the second channel unit makes the distribution of the cooling medium inside the machine tool body more uniform, effectively avoiding the thermal deformation problem caused by local overheating, and enhancing the thermal stability of the machine tool body. By reducing the thermal deformation of the machine tool body, the present invention helps to maintain the precise fit between the various components of the machine tool, reduces the friction and wear between the moving parts, extends the service life of the machine tool body, and reduces the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0069] Figure 1 A structural diagram of a machine tool device according to an embodiment of the present application is shown;

[0070] Figure 2 A flow chart of a machine tool cooling method according to an embodiment of the present application is shown.

[0071] The above drawings include the following reference numerals:

[0072] 101. First cooling channel; 102. Second cooling channel; 2. Heat exchanger; 3. Condenser; 4. Compressor; 5. Condensing fan; 6. Filter component; 7. Control valve; 8. Cooling water tank; 9. Liquid inlet pipe; 10. Liquid outlet pipe; 11. Pump body; 12. Machine tool body; 13. First temperature detection component. DETAILED DESCRIPTION

[0073] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0074] In modern manufacturing, machine tools are key equipment for high-precision parts processing. However, thermal deformation of machine tool castings has always been an important factor affecting machining accuracy. Thermal deformation of machine tool castings is mainly caused by uneven temperature rise in various parts of the machine tool. There are many reasons for this uneven temperature rise, including heating of the motor, friction heating of gears and bearings in the spindle box, and cutting heat during the cutting process. These heat sources cause uneven temperature distribution in various parts of the machine tool casting, which in turn generates thermal stress and causes deformation of the machine tool casting.

[0075] The negative impact of thermal deformation of machine tool castings on processing is mainly reflected in the following aspects:

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

[0077] 2. Change the matching clearance between the various parts of the machine tool, increase the friction and wear between the moving parts;

[0078] 3. Affect the overall stability of the machine tool, causing the machine tool to vibrate and make noise during the processing, reducing work efficiency and processing quality.

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

[0080] The main purpose of the present invention 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, including a machine tool body 12, on which a cooling channel structure is provided;

[0082] A cooling device, the cooling device having a medium supply unit, through which a cooling medium is transported into the cooling channel group to cool the machine tool body 12;

[0083] Among them, the cooling channel structure includes a first channel unit and a second channel unit that are connected. 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. The flow cross-section of the first channel unit is larger than the flow cross-section of the second channel unit.

[0084] Specifically, Figure 1 to Figure 2 As shown, the present invention proposes a machine tool equipment, which is designed to effectively control the thermal deformation of the machine tool casting and improve the machining accuracy and stability of the machine tool. The machine tool equipment mainly includes two parts: a machine tool body 12 and a cooling device. The function of the cooling device is to transport the cooling medium to the cooling channel structure inside the machine tool body 12 through the medium supply unit to achieve accurate cooling of the machine tool body 12. The cooling channel structure is one of the core designs of the present invention, and it consists of two main parts: a first channel unit and a second channel unit. Because the engine, bearing box and other devices that generate high heat when working 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. It is designed to have a larger flow cross-section, which can accommodate more cooling medium to flow through, thereby effectively taking away the heat in the middle area of ​​the machine tool. The second channel unit is arranged on both sides of the machine tool body 12, and its flow cross-section is smaller than that of the first channel unit, but through appropriate design, the cooling medium can flow evenly to reduce the temperature rise on both sides of the machine tool body 12. Such a channel design can ensure that the flow direction of the cooling medium inside the machine tool casting is more uniform, thereby improving the cooling efficiency.

[0085] The present application designs a unique cooling channel structure inside the machine tool body 12, and the present invention can effectively improve the cooling efficiency, reduce the thermal deformation of the machine tool body 12, and thus improve the machine tool processing accuracy. The difference in the flow cross-section design between 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 avoiding the thermal deformation problem caused by local overheating, and enhancing the thermal stability of the machine tool body 12. By reducing the thermal deformation of the machine tool body 12, the present invention helps to maintain the precise fit between the various parts of the machine tool, reduces the friction and wear between the moving parts, extends the service life of the machine tool body 12, and reduces the maintenance cost.

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

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

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

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

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

[0091] Specifically, the present application achieves efficient 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, a first channel unit and a second channel unit, wherein the first channel unit is composed of two first cooling channels 101 and one 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 from the side walls of the two ends of the machine tool body 12. Such a layout can ensure the uniform distribution of the cooling medium in the width direction of the machine tool body 12 and avoid local overheating. The second cooling channel 102 extends along the length direction of the machine tool body 12, and its function is to connect the two first cooling channels 101 to form a cooling network that runs through the width and length of the machine tool body 12, which helps the cooling medium to flow smoothly 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. The flow cross section of the first channel unit in the present invention is circular, and the diameter is set 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 the third cooling channel and the fourth cooling channel, which are also connected through the two first cooling channels to form a complete cooling channel network. This design ensures that the cooling medium can flow evenly through both sides of the machine tool body, further optimizes the distribution of the cooling medium inside the machine tool, and avoids overheating of the side structure.

[0093] Through the layout of the cooling channels of the first channel unit and the second channel unit, the present invention can achieve efficient and uniform cooling of the machine tool body 12, effectively control the thermal deformation of the machine tool casting, and thus significantly improve the processing accuracy and stability of the machine tool body 12. The first cooling channel 101 maintains a certain distance from the side walls at both ends of the machine tool body 12, which can avoid local overheating of the side, ensure the 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 provision of the second cooling 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 fluid resistance and improves the flow efficiency of the cooling medium. The diameter range of 16mm to 18mm takes into account both cooling efficiency and processing costs. The cooling channel structure of the present application not only reduces the thermal deformation of the machine tool body 12 during long-term continuous operation or high-load cutting operations, but also reduces the vibration and noise caused thereby, improves the stability of the processing process, provides a better working environment for operators, and also reduces the thermal deformation of the machine tool body 12, maintains the precise fit between the various parts of the machine tool, reduces the friction and wear between the moving parts, thereby extending the service life of the machine tool body 12, reducing maintenance costs, and enhancing the economic benefits of the machine tool. The cooling channel structure proposed by the present invention is simple in design, easy to implement, and has significant effects. It provides an effective solution for high-precision and high-stability machine tool equipment in modern manufacturing, and has broad application prospects and promotion value.

[0094] In summary, the present invention achieves effective control of the thermal deformation of the machine tool body 12 by optimizing the cooling channel structure, improves the machine tool processing accuracy, reduces the negative impact of thermal deformation, and provides strong technical support for equipment upgrades and efficiency improvements in the modern manufacturing industry.

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

[0096] A second section, the second section extending along the length direction of the machine tool body 12;

[0097] A third section extending along the width direction of the machine tool body 12;

[0098] A fourth section, the fourth section extending along the length direction of the machine tool body 12;

[0099] The first section, the second section, the third section and the fourth section are connected in sequence to form a third cooling channel.

[0100] Specifically, in the present invention, 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 channel including a first section, a second section, a third section and a fourth section. The design of this cooling channel can ensure that the cooling medium fully covers the key parts of the machine tool body 12, and effectively reduce the influence of thermal deformation on the processing accuracy. 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, the motor and other components, to ensure that the heat generated by these components during the processing can be evenly absorbed by the cooling medium. The second section extends along the length direction of the machine tool body 12, and it covers the heat sources in the length direction such as the feed system of the machine tool body 12, which helps to evenly remove the heat generated in the length direction and improve the thermal stability of the processed parts. The third section extends along the width direction of the machine tool body 12 again, forming a closed loop with the first section, ensuring the 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, and together with the second section, constitutes a circulation path for 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 connected in sequence to form a closed-loop third cooling channel, in which the cooling medium circulates, and through coverage in multiple directions, the overall thermal management of the machine tool body 12 is optimized. This design also allows the cooling medium to form a vortex effect in the channel, further improving the heat transfer efficiency, ensuring that the cooling medium is in full contact with the surface of the machine tool body, and improving the cooling effect. In specific implementation, the design of the third cooling channel should fully consider the structure and heat source distribution of the machine tool body 12, and ensure that the cooling medium can evenly and efficiently cover all heat source areas through precise fluid mechanics calculations and optimization, while avoiding increased energy consumption caused by excessive cooling.

[0101] The present invention can achieve 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 processing accuracy. The circulation of the third division and the first division in the width direction, and the circulation of the fourth division and the second division in the length direction, form a closed-loop cooling system, improve the circulation efficiency of the cooling medium, and ensure the continuity and stability of the cooling process. The multi-directional coverage of the cooling channel helps to balance the temperature of various parts of the machine tool body 12, avoid local overheating or overcooling, and improve the overall thermal stability and processing quality of the machine tool. The cooling channel design of the present invention allows the cooling medium to form a vortex effect, increases the contact area and heat exchange efficiency between the cooling medium and the surface of the machine tool body 12, and further enhances the cooling effect. Accurate fluid dynamics calculation and optimization ensure the optimal flow state of the cooling medium in the channel, reduce the channel resistance, and improve the energy efficiency ratio of the cooling system. By optimizing the layout of the cooling channel, the present invention can also reduce the consumption of cooling medium, reduce maintenance costs, and improve the economy and environmental protection of the cooling system. In summary, the present invention realizes uniform distribution of cooling medium in the width and length directions of the machine tool body by designing a complex third cooling channel, effectively improves cooling efficiency and processing accuracy, while reducing energy consumption and maintenance costs, and provides a more efficient, intelligent and environmentally friendly machine tool thermal management solution for the modern manufacturing industry.

[0102] Furthermore, the fourth cooling channel includes:

[0103] Two U-shaped sections, wherein the U-shaped openings of the two U-shaped sections are arranged toward the third cooling channel;

[0104] A connecting section, which connects the two U-shaped sections;

[0105] The transition section includes a first section extending along the length direction of the machine tool body 12 and a second section extending along the width direction of the machine tool body 12. The third cooling channel is connected to the fourth cooling channel through the transition section.

[0106] Specifically, in a further embodiment of the present invention, we designed a fourth cooling channel comprising two U-shaped sections, a connecting section and a transition section to enhance the coverage and heat exchange efficiency of the cooling medium on the machine tool body 12 and achieve more comprehensive temperature control. The structural design of the U-shaped section can ensure that the cooling medium forms a circulating flow in the channel, thereby improving the cooling efficiency.

[0107] The function of the connecting section is to connect the two U-shaped sections to form a continuous flow channel. The design of the connecting section needs to ensure that the transition of the cooling medium between the two U-shaped sections is smooth to avoid turbulence or retention, thereby improving the uniformity and efficiency of the cooling process. The transition section is a key part to achieve the connection between the third cooling channel and the fourth cooling channel. The transition section consists of a first segment and a second segment. The first segment extends along the length direction of the machine tool body 12, while the second segment 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 channel to the fourth cooling channel, thereby achieving a more comprehensive cooling effect. The design of the transition section should also take into account the fluid resistance in the channel to ensure that the cooling medium is smoothly transferred between different channels to avoid unnecessary pressure loss.

[0108] In specific implementation, the layout of the fourth cooling 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 rate and flow velocity requirements of the cooling medium to ensure that the flow state of the medium in the channel is optimal.

[0109] The combination of the two U-shaped sections and the transition section forms a complex and comprehensive cooling network, which can cover multiple heat source areas of the machine tool body 12, realize multi-directional heat exchange of the cooling medium, and effectively improve the cooling efficiency and processing accuracy. The design of the U-shaped section allows the cooling medium to form a circulating flow, which not only increases the contact area between the cooling medium and the machine tool body 12, but also makes the cooling process more uniform, avoids the problem of local overcooling or overheating, and improves the thermal stability and processing quality of the machine tool. The connection between the fourth cooling channel and the third cooling channel forms a more complex cooling medium flow path, which helps to improve the circulation efficiency of the cooling medium, reduces the channel resistance, and improves the energy efficiency ratio of the system. The design of the transition section ensures the smooth transition of the cooling medium between different channels, avoids turbulence or pressure loss of the fluid during the conversion process, and improves the continuity and stability of the cooling process. By optimizing the channel layout and the cooling medium flow rate, the cooling channel design of the present invention can realize the precise control of the temperature of the machine tool body 12, reduce the influence of thermal deformation on the processing accuracy, and improve the quality and production efficiency of the product. The cooling channel design of the present invention can also reduce the consumption of cooling medium, reduce maintenance costs, and improve the economy and environmental protection of the cooling system.

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

[0111] The heat exchange unit cooperates with the medium supply unit through the heat exchanger 2 to exchange heat with the heat source flowing out of the second channel unit, and transports the heat source after heat exchange to the medium supply unit to form a cooling medium.

[0112] Specifically, the present invention realizes a closed-loop cooling medium circulation by closely cooperating with the heat exchanger 2 and the medium supply unit. In specific implementation, after the heat source (i.e., the cooling medium carrying the internal heat of the machine tool body 12) completes the cooling of the machine tool body 12, it will flow out from the second channel unit and be 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, releasing the heat it carries, thereby reducing the temperature. The cooling medium that has completed the heat exchange is then transported back to the medium supply unit and re-supplied to the cooling channel structure, and the cycle is repeated to form an efficient and continuous cooling process.

[0113] The addition of the heat exchange unit in the present application enables the cooling system to form a closed-loop circulation, ensures the continuous supply and temperature control of the cooling medium, and improves 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, and can quickly cool the heat source flowing out of the second channel unit, thereby ensuring the temperature drop of the cooling medium during the circulation process, effectively controlling the thermal deformation of the machine tool body 12, and controlling the temperature of the cooling medium through the heat exchange unit to avoid temperature fluctuations of the cooling medium during the circulation process, reducing the impact on the thermal stability of the machine tool body, and improving processing accuracy and product quality.

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

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

[0116] The condensing fan 5 is disposed at one side of the condenser 3 to exchange heat with the heat source entering the condenser 3 .

[0117] Specifically, the heat exchange unit is composed of a heat exchange pipe working in conjunction with a compressor 4, a condenser 3 and a condensing fan 5 to achieve 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 the specific implementation, the heat exchange pipe is the path for the cooling medium to flow, and its structural design needs to ensure smooth flow of the fluid while reducing heat loss. The compressor 4 is arranged on the heat exchange pipe to increase the pressure and temperature of the heat source (cooling medium) to convert it into a high-temperature and high-pressure gas to facilitate subsequent heat exchange. The condenser 3 is located after the compressor 4. Its function is to exchange heat between the high-temperature and high-pressure gas output by the compressor 4 and the external environment, release heat, and cool and liquefy the cooling medium again for easy recycling. In order to improve the heat exchange efficiency of the condenser 3, the design also includes a condensing fan 5, which is installed on one side of the condenser 3. It accelerates the cooling process of the heat source by forcing air flow, ensuring that the cooling medium can quickly release heat when passing through the condenser 3 and return to a cooling state.

[0119] By setting a compressor 4, a condenser 3 and a condensing fan 5 in the heat exchange unit, the present application can realize efficient cooling of the heat source flowing out of the cooling channel structure, ensure that the temperature of the cooling medium can be quickly reduced to a cooling state, thereby improving the circulation efficiency and cooling effect of the cooling system. The compressor 4 increases the pressure and temperature of the cooling medium, provides the necessary conditions for the subsequent heat exchange process, and ensures the effective circulation of the cooling medium in the heat exchange pipeline. The forced air flow design of the condensing fan 5 effectively improves the heat exchange capacity of the condenser 3, and can ensure the temperature stability of the cooling medium even in a high temperature or high humidity working environment, thereby enhancing the adaptability and reliability of the cooling system; through the cooperation of the compressor 4, the condenser 3 and the condensing fan 5, the present application can realize precise control of the temperature of the cooling medium, avoid temperature fluctuations of the cooling medium during the circulation process, reduce the thermal deformation of the machine tool body 12 caused by temperature changes, and improve the precision and stability of the machine tool processing.

[0120] Furthermore, the heat exchange unit further includes: a filter component 6, the inlet of the filter component 6 is connected to the outlet of the condenser 3, and the outlet end of the filter component 6 is used to communicate with the inlet end of the second heat exchange channel of the heat exchanger 2, so as to filter the liquid after condensation from the condenser 3 and form a cold source to be transported to the second heat exchange channel of the heat exchanger 2;

[0121] A first temperature detection component 13 is provided on the machine tool body 12 to detect the real-time temperature of a location where the first channel unit is provided on the machine tool body 12;

[0122] The control valve 7 is arranged between the filter component 6 and the inlet end of the second heat exchange channel of the heat exchanger 2. The control valve 7 is connected to the first temperature detection component 13 to control the flow of the cold source entering 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 invention, the heat exchange unit is designed to be more sophisticated and intelligent to improve the overall performance of the cooling device. The heat exchange unit is additionally provided with a filter component 6, a first temperature detection component 13 and a control valve 7, and the addition of these components makes the operation of the cooling device more efficient, stable and controllable.

[0124] The filter 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 (cold source) condensed from the condenser 3 and remove impurities or tiny particles that may exist therein to ensure the purity of the cooling medium and avoid clogging the heat exchanger 2 due to impurities, thereby affecting the heat exchange efficiency and the long-term stable operation of the cooling system. The filter component 6 can adopt various suitable filter materials and structures, such as fine filter screens or filter elements, to meet the filtering requirements of different cooling media.

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

[0126] The control valve 7 is located between the filter component 6 and the inlet end of the second heat exchange channel of the heat exchanger 2. It is connected to the first temperature detection component 13 by signal, and can automatically adjust the flow of the cold source entering the second heat exchange channel according to the temperature detection result. When it is detected that the temperature of the machine tool body 12 is too high, the control valve 7 will increase the flow of the cold source to accelerate the cooling process; conversely, 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, thereby improving the intelligence and efficiency of the entire cooling system.

[0127] The addition of the filter component 6 of the present application ensures the purity of the cold source, reduces the maintenance frequency of the heat exchanger 2, avoids the decrease in heat exchange efficiency caused by impurities, and extends the service life of the cooling equipment. 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, provide accurate data for the control of the cooling equipment, and ensure the accuracy of temperature control. The control valve 7 automatically adjusts the cold source flow according to the real-time temperature, realizes the precise supply of the cooling medium, avoids overcooling or insufficient cooling, and improves the energy utilization efficiency of the cooling system. Through the comprehensive application of filtering, temperature detection and flow control, the present invention can ensure the efficient and stable flow of the cooling medium in the cooling cycle, effectively control the thermal deformation of the machine tool casting, and improve the machining accuracy and stability of the machine tool.

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

[0129] The water outlet of the cooling water tank 8 is connected to a liquid inlet pipe 9, and the water outlet of the liquid inlet pipe 9 is connected to the inlet end of the first channel unit to transport the cooling medium in the cooling water tank 8 to the first channel unit.

[0130] Specifically, the design of the medium supply unit is crucial to ensure the stable operation of the cooling equipment and the effective use of the cooling medium. The medium supply unit in the present invention mainly includes a cooling water tank 8 and a liquid inlet pipe 9, which work together to form a storage and circulation transportation mechanism for the cooling medium. The cooling water tank 8 serves as a storage container for the cooling medium, and its water inlet is tightly connected to 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 the cycle, and should be equipped with a temperature monitoring device 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 requirements of the machine tool.

[0131] The water outlet of the cooling water tank 8 is connected to the liquid inlet pipe 9, and the cooling medium stored in the water tank is transported to the inlet end of the first channel unit through the liquid inlet pipe 9.

[0132] The cooling water tank 8 serves as a storage container for the cooling medium, which can ensure a stable supply of the cooling medium during the circulation process, avoid a decrease in cooling effect due to insufficient medium, and improve the reliability of the cooling system. The connection design between 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 setting of the medium supply unit reduces the waste of cooling medium and improves the economy and environmental protection of the system by recycling the cooled medium. The design of the cooling water tank 8 and the liquid inlet pipe 9 can adapt to changes in different processing conditions and ambient temperature, thereby enhancing the adaptability and flexibility of the cooling system.

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

[0134] The liquid level detection component is arranged in the cooling water tank 8 and is connected to the alarm component so that when the liquid level of the cooling medium in the cooling water tank 8 is lower than the set liquid level, the alarm component issues an alarm indication.

[0135] Specifically, the alarm system of the medium supply unit is an important component to ensure the normal operation and maintenance of the cooling equipment. By real-time monitoring of the liquid level in the cooling water tank 8, when the liquid level of the cooling medium is lower than the set liquid level, an alarm can be issued in time to prevent the cooling failure caused by the shortage of the 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., which are installed inside the cooling water tank 8 and can continuously monitor the liquid level of the cooling medium in the water tank. When the detected liquid level is lower than the set set liquid level, the liquid level detection component will send a signal to the alarm component, triggering an alarm to remind the operator or maintenance personnel to replenish the cooling medium in time to avoid the cooling system from stopping due to medium shortage, thereby ensuring the continuous and stable operation of the cooling system. The alarm component can be an audible and visual alarm, which is connected to the liquid level detection component and receives 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 activated immediately, emitting obvious audible and visual prompts 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 invention can monitor the liquid level of the cooling medium in real time, timely warn of the shortage of cooling medium, 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 tool 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, avoids the cumbersome operation of temporarily replenishing the cooling medium, and improves the maintenance efficiency and the stability of the system operation. The high-precision liquid level detection component ensures accurate monitoring of the cooling medium level, reduces false alarms or missed alarms caused by monitoring errors, and improves the reliability and safety of the system. The sound and light prompt function of the alarm component enables the early warning information to be clearly received in a noisy working environment, and can timely remind the operator or maintenance personnel even at night or under low light conditions to ensure all-weather monitoring of the system. Through the liquid level detection early warning, the present invention can effectively avoid excessive consumption and waste of cooling medium, reduce maintenance costs, and improve the economy and environmental protection of the cooling system. The automated design of liquid level detection components and alarm components reduces manual intervention, lowers the difficulty of operation, improves the intelligence level of the system, and is conducive to improving production efficiency and the comfort of the working environment.

[0137] Furthermore, the medium supply unit further includes: a liquid outlet pipe 10, one port of the liquid outlet pipe 10 is connected to the outlet end of the first channel unit, and the other port of the liquid outlet pipe 10 is connected to the inlet end of the first heat exchange channel of the heat exchanger 2;

[0138] A first temperature detection component 13 is provided on the machine tool body 12 to detect the real-time temperature of a location where the first channel unit is provided on the machine tool body 12;

[0139] The pump body 11 is disposed on the liquid outlet pipe 10 and connected to 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 present application also provides a machine tool cooling method, which is applicable to the above-mentioned machine tool equipment, and the cooling method comprises:

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

[0142] S2. When it is determined that the first real-time temperature is greater than or less than the set temperature value, a first temperature difference between the first real-time temperature and the set temperature value is calculated to control the operating 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 equipment is started;

[0144] S4, when it is detected that the machine tool body 12 is started, the medium supply unit of the machine tool equipment is controlled to transport 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 pipe 9 or the third real-time temperature of the liquid outlet pipe 10 of the medium supply unit is detected;

[0146] Detecting a fourth real-time temperature at a location where a first channel unit is provided on the machine tool body 12;

[0147] Calculating the second real-time temperature or a second temperature difference between the third real-time temperature and the fourth real-time temperature;

[0148] Obtain the historical temperature value of the machine tool body 12, where the historical temperature value is the temperature value of the machine tool body 12 60 seconds before the current moment;

[0149] Calculating a temperature change rate between a fourth real-time temperature and a historical temperature value;

[0150] controlling the operating frequency of the compressor 4 of the heat exchange unit according to the temperature change rate and the second temperature difference;

[0151] Specifically, when it is determined that 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 the initial frequency as the reference and 1 Hz as the set frequency of the compressor 4; and / or,

[0152] When it is determined that 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 take the highest frequency as the reference and 1 Hz as the set frequency of the compressor 4 to decrease in sequence; and / or,

[0153] When it is determined that 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 invention provides a machine tool cooling method, which not only takes into account the temperature of the cooling medium, but also integrates the real-time temperature changes and historical temperature trends of the machine tool body, and realizes dynamic adjustment of the operating frequency of the compressor 4 to meet the cooling requirements under different working conditions.

[0155] First, the liquid level in the cooling water tank 8 is monitored using a liquid level detection component to ensure that the cooling medium is sufficient. 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 cooling medium temperature returns to near the set temperature value. This adjustment can be based on a preset algorithm or rule. For example, when the first real-time temperature is higher than the set value, the frequency of the compressor 4 increases, otherwise it decreases, to ensure stable control of the cooling medium temperature.

[0156] Then, the operating state of the machine tool body 12 is detected. 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 pipe 9 or the third real-time temperature of the liquid outlet pipe 10, and the fourth real-time temperature of the first channel unit of 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 of the machine tool body 12 (i.e., the temperature value in the previous 60 seconds) 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 heat load change of the machine tool body can be more accurately evaluated to adaptively adjust the operating frequency of the compressor 4.

[0158] Specifically, when it is determined that 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 will be gradually increased by 1HZ based on the initial frequency until the cooling effect meets the demand, that is, the temperature change rate drops 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 stabilize or decrease. At this time, the operating frequency of the compressor 4 will be based on the highest frequency and gradually decrease every 1HZ to avoid overcooling.

[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 invention achieves a dynamic balance of the cooling process by adjusting the operating frequency of the compressor 4, effectively responds to the heat load fluctuations of the machine tool body 12 caused by changes in the processing conditions, and improves the adaptability and efficiency of the cooling effect. By real-time monitoring and calculating the temperature difference and change rate between the cooling medium and the machine tool body 12, the cooling method can accurately evaluate the cooling demand, avoid overcooling 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 heat 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 can not only quickly respond to the temperature changes of the machine tool body 12, but also reduce the frequent start and stop of the compressor 4, extend the service life of the compressor 4, and reduce the maintenance cost. The cooling method can effectively reduce the decrease in machining accuracy caused by thermal deformation of the machine tool body 12, improve product quality and production efficiency, and enhance the economy and competitiveness of the machine tool. Intelligent cooling control reduces manual intervention, simplifies the operation process, improves the automation level of the system, reduces the difficulty of operation, and is conducive to improving production efficiency and the comfort of the working environment of operators.

[0162] To sum up, the machine tool cooling method of the present invention realizes the 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, which not only effectively improves the processing accuracy and stability of the machine tool, but also reduces energy consumption and maintenance costs. It has significant economic benefits and environmental advantages, is suitable for the efficient cooling needs of various machine tools and equipment, and has wide industrial application value.

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

[0164] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0165] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0166] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0167] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0168] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A machine tool device, characterized in that: include: A machine tool body (12), wherein a cooling channel structure is provided on the machine tool body (12); A cooling device, the cooling device having a medium supply unit, through which a cooling medium is transported into the cooling channel group to cool the machine tool body (12); The cooling channel structure comprises a first channel unit and a second channel unit which are connected, the first channel unit is located in the middle of the machine tool body (12), 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 the flow cross-section of the second channel unit.

2. The machine tool equipment according to claim 1, characterized in that: The first channel unit comprises: Two first cooling channels (101), the two first cooling channels (101) both extending along the width direction of the machine tool body (12); A second cooling channel (102), the second cooling channel (102) extending along the length direction of the machine tool body (12) to connect the two first cooling channels (101); Wherein, the distance between the two ends of the two first cooling channels (101) and the corresponding side walls of the machine tool body (12) along the length direction thereof is 90 mm to 100 mm; and / or, The flow cross section is circular, and the diameter of the flow cross section of the first channel unit is 16 mm to 18 mm.

3. The machine tool equipment according to claim 2, characterized in that: The second channel unit includes a third cooling channel and a fourth cooling channel, and the third cooling channel and the fourth cooling channel are connected through the two first cooling channels.

4. The machine tool equipment according to claim 3, characterized in that: The third cooling channel comprises: A first section extending along the width direction of the machine tool body (12); A second section, the second section extending along the length direction of the machine tool body (12); a third section extending along the width direction of the machine tool body (12); a fourth section, the fourth section extending along the length direction of the machine tool body (12); The first section, the second section, the third section and the fourth section are connected in sequence to form the third cooling channel.

5. The machine tool equipment according to claim 3, characterized in that: The fourth cooling channel comprises: Two U-shaped segments, wherein the U-shaped openings of the two U-shaped segments are arranged toward the third cooling channel; A connecting section, wherein the connecting section connects the two U-shaped sections; A transition section, the transition section comprising a first section extending along the length direction of the machine tool body (12) and a second section extending along the width of the machine tool body (12), and the third cooling channel is connected to the fourth cooling channel through the transition section.

6. The machine tool equipment according to claim 1, characterized in that: The cooling device comprises: Heat exchange unit; The heat exchange unit is used in conjunction with the medium supply unit through a heat exchanger (2) to exchange heat with the heat source flowing out of the second channel unit, and transport the heat source after heat exchange to the medium supply unit to form the cooling medium.

7. The machine tool equipment according to claim 6, characterized in that: The heat exchange unit comprises: Heat exchange pipes; A compressor (4) and a condenser (3) are sequentially arranged on the heat exchange pipeline 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, A condensing fan (5), wherein the condensing fan (5) is arranged on one side of the condenser (3) to perform heat exchange on the heat source entering the condenser (3).

8. The machine tool equipment according to claim 7, characterized in that: The heat exchange unit also includes: A filter component (6), the inlet of the filter component (6) is connected to the outlet of the condenser (3), and the outlet end of the filter component (6) is used to communicate with the inlet end of the second heat exchange channel of the heat exchanger (2) so as to filter the liquid after condensation from the condenser (3) and form a cold source to be transported to the second heat exchange channel of the heat exchanger (2).

9. The machine tool equipment according to claim 8, characterized in that: The heat exchange unit also includes: A first temperature detection component (13) is provided on the machine tool body (12) to detect the real-time temperature of a location on the machine tool body (12) where the first channel unit is provided; A control valve (7), the control valve (7) being arranged between the filter component (6) and an inlet end of a second heat exchange channel of the heat exchanger (2), the control valve (7) being connected to the first temperature detection component (13) so as to control the flow of the cold source entering the second heat exchange channel according to the detection result of the first temperature detection component (13).

10. The machine tool equipment according to claim 6, characterized in that: The medium supply unit comprises: A cooling water tank (8), wherein a water inlet of the cooling water tank (8) is connected to an outlet end of the first heat exchange channel of the heat exchanger (2) so as to store the heat source after heat exchange; The water outlet of the cooling water tank (8) is connected to a liquid inlet pipe (9), and the water outlet of the liquid inlet pipe (9) is connected to the inlet end of the first channel unit to transport the cooling medium in the cooling water tank (8) into the first channel unit.

11. The machine tool equipment according to claim 10, characterized in that: The medium supply unit also includes: Alarm components; A liquid level detection component is disposed in the cooling water tank (8) and is connected to the alarm component so that when the liquid level of the cooling medium in the cooling water tank (8) is lower than a set liquid level, the alarm component issues an alarm indication.

12. The machine tool equipment according to claim 6, characterized in that: The medium supply unit also includes: a liquid outlet pipe (10), one port of the liquid outlet pipe (10) being in communication with the outlet end of the first channel unit, and the other port of the liquid outlet pipe (10) being in communication with the inlet end of the first heat exchange channel of the heat exchanger (2); A first temperature detection component (13) is provided on the machine tool body (12) to detect the real-time temperature of a location on the machine tool body (12) where the first channel unit is provided; A pump body (11), wherein the pump body (11) is arranged on the liquid outlet pipe (10) and is connected to the first temperature detection component (13) so as to control the power of the pump body (11) according to the detection result of the first temperature detection component (13).

13. A method for cooling a machine tool, characterized in that: The machine tool cooling method is applicable to the machine tool equipment described in any one of claims 1 to 9, and the cooling method comprises: Detecting whether a machine tool body (12) of the machine tool equipment is started; When it is detected that the machine tool body (12) is started, the medium supply unit of the machine tool equipment is controlled to transport cooling medium into the cooling channel group to cool the machine tool body (12).

14. The machine tool cooling method according to claim 13, characterized in that: Before the step of detecting whether the machine tool body (12) of the machine tool equipment is started, the method comprises: Detecting a first real-time temperature of a cooling medium in a cooling water tank (8) of a medium supply unit of the machine tool equipment; When it is determined that the first real-time temperature is greater than or less than a set temperature value, a first temperature difference between the first real-time temperature and the set temperature value is calculated to control the operating 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.

15. The machine tool cooling method according to claim 13, characterized in that: The step of cooling the machine tool body (12) comprises: Detecting a second real-time temperature of a liquid inlet pipe (9) or a third real-time temperature of a liquid outlet pipe (10) of a medium supply unit; Detecting a fourth real-time temperature at a location on the machine tool body (12) where the first channel unit is provided; Calculating a second temperature difference between the second real-time temperature or the third real-time temperature and the fourth real-time temperature; Acquire a historical temperature value of the machine tool body (12), wherein the historical temperature value is a temperature value of the machine tool body (12) 60 seconds before the current moment; Calculating a temperature change rate between the fourth real-time temperature and the historical temperature value; The operating frequency of the compressor (4) of the heat exchange unit is controlled according to the temperature change rate and the second temperature difference.

16. The machine tool cooling method according to claim 15, characterized in that: The step of controlling the operating frequency of the compressor (4) according to the temperature change rate and the second temperature difference comprises: When it is determined that the temperature change rate is greater than or equal to a first set value, the compressor (4) is controlled to increase in sequence with 1 Hz as the set frequency of the compressor (4) based on the initial frequency; and / or, When it is determined that the temperature change rate is less than or equal to a second set value, the compressor (4) is controlled to decrease in sequence with the highest frequency as a reference and 1 Hz as the set frequency of the compressor (4); and / or, When it is determined that the temperature change rate is greater than the second set value and less than or equal to the first set value, the compressor (4) is controlled to operate at the current frequency.

Images