Machine tool

Abstract

The embodiment of the invention provides a machine tool which comprises a first cutting fluid filtering part, an auxiliary oil tank, a main oil tank, a filter and a cooling assembly, the auxiliary oil tank is provided with a second cutting fluid filtering part, and the second cutting fluid filtering part is suitable for filtering cutting fluid filtered by the first cutting fluid filtering part; the main oil tank is connected to the auxiliary oil tank and the filter; the filter is suitable for filtering the cutting fluid filtered by the second cutting fluid filtering part; the cooling assembly is assembled on the main oil tank and suitable for cooling the cutting fluid in the main oil tank. Thus, cutting fluid in the machine tool can be subjected to multiple filtering through the first cutting fluid filtering part, the second cutting fluid filtering part and the filter, the cooling assembly can cool the cutting fluid, the filtering effect on the cutting fluid can be better improved, the cleanliness of the cutting fluid can be better improved, and the situation that the interior of the machine tool is blocked can be better reduced; and the reliability and the stability of the machine tool can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of industrial equipment, and in particular to a machine tool. Background Art

[0002] Cutting fluid is an important substance in the process of machine tool processing. Cutting fluid can form a lubricating film on the surface of the tool and the workpiece during the process of machine tool processing to reduce the friction and wear of the tool and extend the service life of the tool. Cutting fluid can also be used for cooling the tool and the workpiece and flushing the iron chips during the process of machine tool processing, or for cooling the spindle, etc. Cutting fluid will take away the iron chips cut by the workpiece during the process of machine tool processing. Generally, a filtering mechanism or filtering device is set in the machine tool to filter the cutting fluid to ensure the normal circulation of the cutting fluid.

[0003] However, the cutting fluid in the machine tools of the related art is not filtered cleanly, which can easily cause blockage inside the machine tools and damage accessories such as oil pumps and cutting tools. Summary of the invention

[0004] The embodiments of the present invention provide a machine tool to improve at least one of the above technical problems.

[0005] The embodiments of the present invention achieve the above-mentioned purpose through the following technical solutions.

[0006] An embodiment of the present invention provides a machine tool, which includes a first cutting fluid filter part, an auxiliary oil tank, a main oil tank, a filter and a cooling assembly. The auxiliary oil tank is provided with a second cutting fluid filter part, and the second cutting fluid filter part is suitable for filtering the cutting fluid filtered by the first cutting fluid filter part; the main oil tank is connected to the auxiliary oil tank and the filter, and the filter is suitable for filtering the cutting fluid filtered by the second cutting fluid filter part; the cooling assembly is assembled on the main oil tank, and the cooling assembly is suitable for cooling the cutting fluid in the main oil tank.

[0007] In some embodiments, the main oil tank is provided with an oil cavity, the filter is located outside the oil cavity, the machine tool also includes a first pipe and a second pipe, the first pipe passes through the main oil tank, the first pipe is connected between the outlet end of the auxiliary oil tank and the inlet end of the filter, the inlet end of the second pipe is connected to the outlet end of the filter and the outlet end of the second pipe is located in the oil cavity.

[0008] In some embodiments, the cooling assembly includes a cooling element and a stirring element. The main oil tank is provided with an oil cavity. The cooling element and the stirring element are both located in the oil cavity. The cooling element is arranged around the outer periphery of the stirring element.

[0009] In some embodiments, the stirring element includes a driving body, a driving rod and a plurality of fan blades, the driving rod is connected to the driving body and the fan blades, the plurality of fan blades are distributed at intervals along the axial direction of the driving rod, the cooling element is arranged around the periphery of the plurality of fan blades, and the driving body is suitable for driving the driving rod to rotate, so as to drive the plurality of fan blades to rotate synchronously.

[0010] In some embodiments, the cooling assembly also includes a condenser, a compressor and a heat sink. The condenser, the compressor and the heat sink are all located outside the oil chamber. The compressor is connected between the condenser and the cooling element. The refrigerant circulates between the compressor, the condenser and the cooling element. The heat sink is arranged on the side of the condenser away from the cooling element and is suitable for dissipating heat from the condenser.

[0011] In some embodiments, the first cutting fluid filter unit includes a plurality of oil filter meshes, and the pore sizes of the plurality of oil filter meshes are in a range of 0.5 mm to 20 mm.

[0012] In some embodiments, the filter includes a pressure measuring device and a pressure switch, the filter is provided with an installation cavity, the pressure measuring device and the pressure switch are both located outside the installation cavity, and the pressure measuring device and the pressure switch are arranged at intervals.

[0013] In some embodiments, the auxiliary oil tank is provided with a third cutting fluid filter unit, a fourth cutting fluid filter unit and a fifth cutting fluid filter unit, and the first cutting fluid filter unit, the third cutting fluid filter unit, the fourth cutting fluid filter unit, the second cutting fluid filter unit and the fifth cutting fluid filter unit are connected in sequence, and the filter is suitable for filtering the cutting fluid filtered by the fifth cutting fluid filter unit.

[0014] In some embodiments, the main oil tank is provided with a sixth cutting fluid filter portion, the sixth cutting fluid filter portion is located in the main oil tank, and the sixth cutting fluid filter portion is suitable for filtering the cutting fluid filtered by the filter.

[0015] In some embodiments, the machine tool further includes a first liquid level sensor and a second liquid level sensor, the first liquid level sensor is mounted on the auxiliary oil tank, and the second liquid level sensor is mounted on the main oil tank.

[0016] The machine tool provided in the embodiment of the present invention comprises a first cutting fluid filter part, and the auxiliary oil tank is provided with a second cutting fluid filter part, and the second cutting fluid filter part is suitable for filtering the cutting fluid filtered by the first cutting fluid filter part. The main oil tank is connected to the auxiliary oil tank and the filter, and the filter is suitable for filtering the cutting fluid filtered by the second cutting fluid filter part. The cooling component is assembled on the main oil tank, and the cooling component is suitable for cooling the cutting fluid in the main oil tank. In this way, the cutting fluid in the machine tool can be filtered through the first cutting fluid filter part, the second cutting fluid filter part and the filter respectively, which helps to improve the filtering effect of the cutting fluid, helps to improve the cleanliness of the cutting fluid, helps to reduce the blockage inside the machine tool, and helps to improve the service life of the components in the machine tool such as oil pumps, tools, spindles and other components, and the cooling component can cool the cutting fluid, which helps to ensure that the coolant is in a suitable temperature environment, so that the machine tool can meet the needs of high-precision processing, and helps to improve the reliability and stability of the machine tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the implementation modes of the present application, the drawings required for use in the description of the implementation modes will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic structural diagram of a machine tool provided in an embodiment of the present application is shown.

[0019] Figure 2 Shows Figure 1 Schematic diagram of the structure of the auxiliary oil tank and the first cutting fluid filter part of the machine tool.

[0020] Figure 3 Shows Figure 2 Schematic diagram of the enlarged structure of the machine tool at A.

[0021] Figure 4 Shows Figure 1 Schematic diagram of the structure of the main oil tank and filter of the machine tool.

[0022] Figure 5 Shows Figure 4 Schematic diagram of the structure of the main oil tank and filter of the machine tool from another perspective.

[0023] Figure 6 Shows Figure 5 Schematic diagram of the partial structure of the main fuel tank.

[0024] Figure 7 Shows Figure 1 Schematic diagram of the structure of the cooling component of the machine tool.

[0025] Figure 8 Shows Figure 7 Schematic diagram of the partial structure of the cooling component. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the implementation mode of the present application will be clearly and completely described below in conjunction with the drawings in the implementation mode of the present application. Obviously, the described implementation mode is only a part of the implementation mode of the present application, not all the implementation modes. Based on the implementation mode in the present application, all other implementation modes obtained by those skilled in the art without making creative work are within the scope of protection of the present application.

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present application.

[0028] Machine tools in related technologies generally only have a single-layer filter structure to filter the cutting fluid. This solution has a poor filtering effect. In addition, since there is no cooling mechanism in the machine tool, the cutting fluid will heat up during the operation of the machine tool. The temperature of the cutting fluid circulating through the filter mechanism is relatively high, causing the filter material in the filter structure to heat up, deform or be damaged, which will affect the filtering effect of the filter structure. If the cutting fluid is not filtered cleanly, it is easy to cause blockage in the internal pipes of the machine tool and damage related components such as the oil pump and cutting tools.

[0029] Please also read Figures 1 to 4 The embodiment of the present invention provides a machine tool 100, which includes a first cutting fluid filter 111, an auxiliary oil tank 12, a main oil tank 13, a filter 14 and a cooling assembly 15. The auxiliary oil tank 12 is provided with a second cutting fluid filter 121, and the second cutting fluid filter 121 is suitable for filtering the cutting fluid filtered by the first cutting fluid filter 111. The main oil tank 13 is connected to the auxiliary oil tank 12 and the filter 14, and the filter 14 is suitable for filtering the cutting fluid filtered by the second cutting fluid filter 121. The cooling assembly 15 is assembled on the main oil tank 13, and the cooling assembly 15 is suitable for cooling the cutting fluid in the main oil tank 13.

[0030] In this way, the cutting fluid in the machine tool 100 can be filtered through the first cutting fluid filter 111, the second cutting fluid filter 121 and the filter 14 respectively, which helps to improve the filtering effect of the cutting fluid, helps to improve the cleanliness of the cutting fluid, helps to reduce the blockage inside the machine tool 100, and helps to improve the service life of the components in the machine tool 100, such as the oil pump, the tool, the spindle and the like. The cooling component 15 can cool the cutting fluid, which helps to ensure that the coolant is in a suitable temperature environment, so that the machine tool 100 can meet the requirements of high-precision processing, and helps to improve the reliability and stability of the machine tool 100. Among them, the filtering accuracy of the machine tool 100 can reach 20 microns or more, which can be set according to actual conditions.

[0031] The machine tool 100 may include a processing section 40, which is connected to the main oil tank 13 and the auxiliary oil tank 12, and the cutting fluid may circulate in the processing section 40, the auxiliary oil tank 12 and the main oil tank 13. The processing section 40 and the auxiliary oil tank 12 may be connected via a chip removal member 11, for example, the chip removal member 11 may be a chip removal pipe, the first cutting fluid filter 111 may be disposed on the chip removal member 11 and facing the second cutting fluid filter 121, and the processing section 40 may be provided with one or more chip removal screws to push the processed iron chips and the cutting fluid mixture outward toward the chip removal member 11.

[0032] When the machine tool 100 is working, the cutting fluid flows through the machining part 40 and takes away the debris generated during the machining of the workpiece. When the cutting fluid flows through the chip removal part 11, the first cutting fluid filter part 111 can perform initial filtration on the cutting fluid to separate the cutting fluid from most of the iron filings and waste residues. The filtered cutting fluid flows to the auxiliary oil tank 12 and is filtered again under the action of the second cutting fluid filter part 121. The cutting fluid after the second filtration is filtered three times under the action of the filter 14 and then flows to the main oil tank 13, thereby realizing multiple filtration of the cutting fluid and improving the cleanliness of the cutting fluid.

[0033] The cooling component 15 can cool the cutting fluid so that the cutting fluid flowing through the processing part 40 can be in a suitable temperature environment. Since the cutting fluid will take away a large amount of heat and heat up when flowing through the processing part 40, the cutting fluid cooled by the cooling component 15 can offset a part of the heat absorbed by the cutting fluid, which helps to avoid the cutting fluid from being too hot after flowing through the processing part 40, helps to reduce the poor lubrication effect of high-temperature cutting fluid, and helps to reduce the increased friction between the various components of the machine tool 100.

[0034] Among them, the cooled cutting fluid can be supplied to the spindle of the machine tool 100 through a pipeline for cooling, or supplied to the processing part 40 for processing cooling of the tool tip workpiece, or supplied to the spindle for oil / water outlet of the high-pressure center, or supplied to components at other locations for flushing and cleaning. The specific settings can be made according to actual conditions.

[0035] The machine tool 100 may further include a chip carrier 30, one end of the chip removal member 11 is connected to the processing part 40, the other end of the chip removal member 11 faces the chip carrier 30, and the first cutting fluid filter 111 is located between the processing part 40 and the chip carrier 30 and faces the second cutting fluid filter 121. When the cutting fluid flows through the chip removal member 11, the first cutting fluid filter 111 can filter the cutting fluid, and the filtered cutting fluid flows to the auxiliary oil tank 12, and the filtered waste chips flow to the chip carrier 30, so that the chip carrier 30 can collect the waste chips to ensure the cleanliness of the working environment of the machine tool 100.

[0036] Please also read Figures 4 to 6 In some embodiments, the main oil tank 13 is provided with an oil cavity 131, the filter 14 is located outside the oil cavity 131, and the machine tool 100 further includes a first pipe 16 and a second pipe 17, the first pipe 16 passes through the main oil tank 13, the first pipe 16 is connected between the outlet end of the auxiliary oil tank 12 and the inlet end of the filter 14, the inlet end of the second pipe 17 is connected to the outlet end of the filter 14 and the outlet end of the second pipe 17 is located in the oil cavity 131. The first pipe 16 can be connected between the outlet end of the oil pump of the auxiliary oil tank 12 and the inlet end of the filter 14, and can be specifically set according to actual conditions.

[0037] This helps reduce the volume of the oil chamber 131 occupied by the filter 14, helps increase the effective capacity of the oil chamber 131, and also helps facilitate cleaning and maintenance of the filter 14. The first pipe 16 passes through the main oil tank 13 and is connected to the auxiliary oil tank 12 and the filter 14, which helps reduce the situation where the first pipe 16 is completely exposed to the main oil tank 13, and helps improve the compactness of the structure of the first pipe 16 and the main oil tank 13.

[0038] The top of the main oil tank 13 may be provided with an oil filling hole 133, which is connected to the oil chamber 131, so that the machine tool 100 can inject cutting fluid into the oil chamber 131 through the oil filling hole 133. The oil filling hole 133 may be sealed with a cover plate, which is opened to open the oil filling hole 133 during use, and opened to close the oil filling hole 133 after use.

[0039] See also Figure 3 and Figure 4 In some embodiments, the first cutting fluid filter 111 includes a plurality of oil filter meshes 1111, and the pore size of the plurality of oil filter meshes 1111 is 0.5 mm to 20 mm.

[0040] In this way, multiple oil filter meshes 1111 help to increase the filtering area of ​​the first cutting fluid filter part 111, help to improve the filtering effect of the first cutting fluid filter part 111 on the cutting fluid, help to ensure that the oil filter mesh 1111 has a suitable pore size, help to ensure the filtering effect of the oil filter mesh 1111 on the cutting fluid, help to ensure the normal flow of the cutting fluid, help to reduce the situation where the pore size of the oil filter mesh 1111 is too large, causing impurities such as iron filings and waste residue to pass through the oil filter mesh 1111, and also help to reduce the situation where the pore size of the oil filter mesh 1111 is too small to hinder the flow of cutting fluid.

[0041] Exemplarily, the pore size of the oil filter mesh 1111 can be 0.5mm, 1mm, 1.5mm, 2.5mm, 4mm, 5.8mm, 8mm, 12mm, 15mm, 16.5mm, 18mm, 20mm or any value between two adjacent values ​​mentioned above, and can be set according to actual conditions.

[0042] In this way, the oil filter mesh 1111 can have a suitable pore size, which helps to ensure the filtering effect of the oil filter mesh 1111 on the cutting fluid and helps to ensure the normal flow of the cutting fluid.

[0043] Among them, the second cutting fluid filter part 121 can be provided with a filter sponge and a plurality of oil filter holes, and the filter sponge and the plurality of oil filter holes can perform secondary filtration on the cutting fluid filtered by the first cutting fluid filter part 111, and can be specifically set according to actual conditions.

[0044] In some embodiments, a filter bag may be provided inside the filter 14. For example, the filtration accuracy of the filter bag may be 20 microns or other values, which may be set according to actual conditions. When the cutting fluid enters the filter 14, the filter bag may filter the cutting fluid again, thereby improving the cleanliness of the cutting fluid.

[0045] In some embodiments, the filter 14 may include a pressure measuring element 141 and a pressure switch 142. The filter 14 is provided with an installation cavity 143. The pressure measuring element 141 and the pressure switch 142 are both located outside the installation cavity 143. The pressure measuring element 141 and the pressure switch 142 are arranged at intervals. The pressure measuring element 141 may be a pressure gauge.

[0046] In this way, the pressure measuring device 141 can detect the pressure inside the filter 14 in real time, facilitate the monitoring of the pressure inside the filter 14, and help ensure that the filter 14 has a suitable pressure. The pressure switch 142 can warn of abnormal pressure inside the filter to ensure the normal operation of the machine tool 100.

[0047] Exemplarily, when there is a blockage inside the filter 14, for example, the filter bag is clogged and causes the pressure to rise to a set value, the pressure switch 142 can alarm to remind the user of the abnormality inside the filter 14, so that the user can check and repair the filter 14 in time, such as replacing a new filter bag, so that the cutting fluid can re-enter the filter 14 for filtration, thereby ensuring the normal operation of the machine tool 100.

[0048] Please also read Figures 5 to 8 In some embodiments, the cooling assembly 15 includes a cooling member 151 and a stirring member 152. The cooling member 151 and the stirring member 152 are both located in the oil chamber 131, and the cooling member 151 is arranged around the outer periphery of the stirring member 152. The cooling member 151 and the stirring member 152 can be immersed in the cutting fluid. The cooling member 151 can be a cooling coil.

[0049] Since the heat conduction of the cutting fluid itself is slow, but the oil pump in the machine tool 100 has a fast oil pumping speed and a large external circulation flow rate, the stirring member 152 can rotate to allow the cooling member 151 to fully contact the cutting fluid, which helps to increase the contact area between the cooling member 151 and the stirring member 152 and the cutting fluid, helps to improve the cooling efficiency of the cutting fluid, and allows the cutting fluid to be cooled efficiently and quickly, so that the cooled cutting fluid can be supplied to the operation of the components in the machine tool 100, and also helps to reduce damage to the components in the machine tool 100 caused by overheating of the cutting fluid, and also helps to reduce the situation where overheating of the cutting fluid affects the filtering effect of the first cutting fluid filter 111, the second cutting fluid filter 121 and the filter 14, helps to ensure the filtering effect of the cutting fluid, and also helps to avoid local overheating and overcooling of the cutting fluid, helps to ensure the uniformity of the cutting fluid temperature, and helps to ensure the stability and continuity of the cutting fluid.

[0050] In addition, both the cooling element 151 and the stirring element 152 are immersed in the cutting fluid, which also helps to reduce the loss of cold energy, helps to improve the utilization rate of the cold energy of the cooling element 151, and helps to improve the energy efficiency of the cooling component 15.

[0051] In some embodiments, the stirring member 152 includes a driving body 1521, a driving rod 1522, and a plurality of blades 1523, wherein the driving rod 1522 is connected to the driving body 1521 and the blades 1523, the plurality of blades 1523 are spaced apart along the axial direction of the driving rod 1522, the cooling member 151 is disposed around the outer periphery of the plurality of blades 1523, and the driving body 1521 is adapted to drive the driving rod 1522 to rotate, so as to drive the plurality of blades 1523 to rotate synchronously. The driving body 1521 may be a motor, an electric motor, etc.

[0052] This helps to increase the stirring range of the stirring member 152, helps the cooling member 151 to contact the cutting fluid more fully, helps to better ensure the uniformity of the cutting fluid temperature, and also helps to better improve the cooling efficiency of the cutting fluid, so that the cutting fluid can be cooled more efficiently and quickly.

[0053] Here, a plurality refers to two or more than two, for example, the stirring member 152 may include two, three, four, five or other numbers of blades 1523, which may be specifically arranged according to actual conditions.

[0054] In some embodiments, the cooling assembly 15 may further include a condenser 153, a compressor 154 and a heat sink 155. The condenser 153, the compressor 154 and the heat sink 155 are all located outside the oil chamber 131. The compressor 154 is connected between the condenser 153 and the cooling element 151. The refrigerant circulates among the compressor 154, the condenser 153 and the cooling element 151. The heat sink 155 is arranged on the side of the condenser 153 away from the cooling element 151 and is suitable for dissipating heat from the condenser 153.

[0055] This helps to reduce the volume of the oil chamber 131 occupied by the condenser 153, the compressor 154 and the heat sink 155, helps to increase the effective capacity of the oil chamber 131, and also helps to facilitate the cleaning and maintenance of the condenser 153, the compressor 154 and the heat sink 155. The heat sink 155 can dissipate heat from the condenser 153, which helps to ensure that the condenser 153 is in a suitable temperature environment. The condenser 153 can condense and release heat to exchange heat with the refrigerant, and the cooling element 151 can evaporate and absorb heat to exchange heat with the refrigerant, which helps to ensure the normal operation of the cooling component 15.

[0056] The cooling assembly 15 may include a shell 156, which is connected to the main oil tank 13 and is located outside the oil chamber 131. The condenser 153 and the compressor 154 are both assembled in the shell 156, and the heat sink 155 is located outside the shell 156, which helps to reasonably arrange the components of the cooling assembly 15. The cooling assembly 15 may also include a drainage connector 157, for example, the drainage connector 157 may be provided on the side below the shell 156, so as to centrally discharge the condensed water that may be generated when the cooling assembly 15 is refrigerating.

[0057] The working principle of the cooling component 15 is: a target value and a high point value are set in the system, such as setting the target value to 26°C and the high point value to 29°C. After the machine tool 100 is processed, the temperature of the cutting fluid will gradually rise. When the temperature of the cutting fluid reaches 29°C, the compressor 154 starts to refrigerate, the cooling element 151 refrigerates to cool the cutting fluid, and the stirring element 152 rotates to increase the cooling speed of the cutting fluid. At this time, the temperature of the cutting fluid begins to drop; when the temperature of the cutting fluid reaches 26°C, the compressor 154, the cooling element 151 and the stirring element 152 stop working to avoid the temperature of the cutting fluid being too low; when the temperature of the cutting fluid rises again, the compressor 154, the cooling element 151 and the stirring element 152 restart working, and the cutting fluid temperature is regulated in this cycle.

[0058] In some embodiments, the auxiliary oil tank 12 can be provided with a third cutting fluid filter 122, a fourth cutting fluid filter 123 and a fifth cutting fluid filter 124, the first cutting fluid filter 111, the third cutting fluid filter 122, the fourth cutting fluid filter 123, the second cutting fluid filter 121, and the fifth cutting fluid filter 124 are connected in sequence, and the filter 14 is suitable for filtering the cutting fluid filtered by the fifth cutting fluid filter 124.

[0059] In this way, the cutting fluid can enter the auxiliary oil tank 12 after being filtered by the first cutting fluid filter part 111, and then pass through the third cutting fluid filter part 122, the fourth cutting fluid filter part 123, the second cutting fluid filter part 121, and the fifth cutting fluid filter part 124 respectively to achieve multiple filtrations, which helps to improve the filtering effect of the cutting fluid in the auxiliary oil tank 12, helps to improve the filtering effect of the cutting fluid in the auxiliary oil tank 12, helps to improve the cleanliness of the cutting fluid in the auxiliary oil tank 12, and helps to reduce the blockage inside the auxiliary oil tank 12.

[0060] Among them, the third cutting fluid filter part 122 can include multiple magnets, and the multiple magnets can adsorb iron filings in the cutting fluid filtered by the first cutting fluid filter part 111, and the multiple magnets can be arranged at intervals; the fourth cutting fluid filter part 123 can be provided with a filter sponge and multiple oil filter holes, and the filter sponge and multiple oil filter holes can filter the cutting fluid filtered by the third cutting fluid filter part 122 again; the fifth cutting fluid filter part can be a portable filter box, and a wire mesh is provided in the portable filter box to filter the cutting fluid filtered by the second cutting fluid filter part 121 again, thereby improving the cleanliness of the cutting fluid.

[0061] Among them, the area of ​​the second cutting fluid filter part 121 is larger than the area of ​​the fourth cutting fluid filter part 123, which helps to ensure that the cutting fluid filtered by the fourth cutting fluid filter part 123 can flow into the second cutting fluid filter part 121. The pore size of the oil filter hole of the second cutting fluid filter part 121 and the oil filter hole of the fourth cutting fluid filter part 123 can be equal or different, and can be adaptively set according to actual conditions.

[0062] See also Figure 5 and Figure 6 In some embodiments, the main oil tank 13 is provided with a sixth cutting fluid filter 132, which is located in the main oil tank 13 and is suitable for filtering the cutting fluid filtered by the filter 14. The sixth cutting fluid filter 132 may be a filter element.

[0063] In this way, the cutting fluid can enter the main oil tank 13 after being filtered by the filter 14, and the sixth cutting fluid filter 132 can filter the cutting fluid in the main oil tank 13, which helps to improve the filtering effect of the cutting fluid in the main oil tank 13, helps to improve the cleanliness of the cutting fluid in the main oil tank 13, and helps to reduce the blockage inside the main oil tank 13.

[0064] The main oil tank 13 may be provided with a disassembly port 134 to facilitate manual disassembly of the sixth cutting fluid filter 132 through the disassembly port 134. The disassembly port 134 may be sealed with a cover plate, which is opened during use to open the disassembly port 134, and opened after use to close the disassembly port 134.

[0065] Re-read Figure 2 and Figure 6 In some embodiments, the machine tool 100 further includes a first liquid level sensor 18 and a second liquid level sensor 19 . The first liquid level sensor 18 is mounted on the auxiliary oil tank 12 , and the second liquid level sensor 19 is mounted on the main oil tank 13 .

[0066] In this way, the first liquid level sensor 18 can detect the liquid level in the auxiliary oil tank 12, and the second liquid level sensor 19 can detect the liquid level in the main oil tank 13, which helps to reduce the situation where the cutting fluid level in the auxiliary oil tank 12 and the main oil tank 13 is too high and overflows, and also helps to reduce the situation where the cutting fluid level in the auxiliary oil tank 12 and the main oil tank 13 is too low and causes the components in the machine tool 100 to run idle and be damaged. Among them, the first liquid level sensor 18 can be a float switch, or the first liquid level sensor 18 can also be in other forms, and the second liquid level sensor 19 can be a float switch, or the second liquid level sensor 19 can also be in other forms, and can be specifically set according to actual conditions.

[0067] In some embodiments, the machine tool 100 may further include a first oil pump 21, which is installed in the main oil tank 13. The first oil pump 21 can pump the cutting fluid in the main oil tank 13 to the parts in the machine tool 100 that need to use the cutting fluid, so as to ensure the normal operation of the machine tool 100. The sixth cutting fluid filter 132 is located at the inlet of the first oil pump 21, so that the sixth cutting fluid filter 132 can filter the cutting fluid entering the first oil pump 21 again, which helps to ensure the cleanliness of the cutting fluid entering the first oil pump 21.

[0068] Exemplarily, the first oil pump 21 can be a horizontal high-pressure pump, which can be connected to the machine tool spindle through a pipeline. The first oil pump 21 can pump the cutting fluid in the main oil tank 13 to the spindle of the machine tool 100 for cooling, thereby ensuring the normal operation of the machine tool 100. In other embodiments, the first oil pump 21 can also be an oil pump of other forms, for example, it can be a vertical pump. The number of the first oil pumps 21 can be multiple, for example, the machine tool 100 can include two, three, four or other numbers of first oil pumps 21, which can be specifically set according to actual conditions to meet the cooling of the machine tool spindle in the machine tool 100, the machining and cutting cooling of the tool tip workpiece, the oil / water outlet of the spindle high-pressure center, the flushing and cleaning of components in other positions, etc.

[0069] The oil inlet of the first oil pump 21 may be provided with a switch, for example, a manual ball valve switch or other various forms of automatic switches may be provided at the oil inlet of the first oil pump 21. In this way, when the first oil pump 21 fails and needs to be repaired or replaced, the switch may be turned off for maintenance and inspection, which is convenient for operation.

[0070] Among them, Figure 6 As shown, the main oil tank 13 can be divided into two layers, the upper layer is an oil chamber 131 to store oil, and the lower layer is an open space that can be used to assemble various oil pumps, which helps to reasonably layout the space inside the main oil tank 13 and improve the compactness of the structure. A sealing plate can be used between the upper and lower layers, and a sealing plate can also be used between the surfaces of the lower layer, which can be set according to actual conditions.

[0071] In some embodiments, the machine tool 100 may further include a second oil pump 22 , which is mounted on the auxiliary oil tank 12 and connected to the first pipeline 16 to pump the cutting fluid from the auxiliary oil tank 12 to the filter 14 .

[0072] In summary, the machine tool 100 provided in the embodiment of the present invention includes a first cutting fluid filter 111, and the auxiliary oil tank 12 is provided with a second cutting fluid filter 121, and the second cutting fluid filter 121 is suitable for filtering the cutting fluid filtered by the first cutting fluid filter 111. The main oil tank 13 is connected to the auxiliary oil tank 12 and the filter 14, and the filter 14 is suitable for filtering the cutting fluid filtered by the second cutting fluid filter 121. The cooling component 15 is assembled on the main oil tank 13, and the cooling component 15 is suitable for cooling the cutting fluid in the main oil tank 13. In this way, the cutting fluid in the machine tool 100 can be filtered through the first cutting fluid filter 111, the second cutting fluid filter 121 and the filter 14 respectively, which helps to improve the filtering effect of the cutting fluid, helps to improve the cleanliness of the cutting fluid, helps to reduce the internal blockage of the machine tool 100, and helps to increase the service life of the components in the machine tool 100, such as oil pumps, tools, spindles and other components. The cooling component 15 can cool the cutting fluid, which helps to ensure that the coolant is in a suitable temperature environment, so that the machine tool 100 can meet the needs of high-precision processing, and helps to improve the reliability and stability of the machine tool 100.

[0073] In this application, unless otherwise clearly specified or limited, the terms "installation", "connection" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be internal communication between two elements, it can be only surface contact, or it can be connected through surface contact through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0074] In addition, the terms "first", "second", etc. are only used to distinguish descriptions and cannot be understood as specific or special structures. The description of the term "some embodiments" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0075] The above implementation modes are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned implementation modes, a person skilled in the art should understand that the technical solutions described in the aforementioned implementation modes can still be modified, or some of the technical features can be replaced by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various implementation modes of the present application, and should all be included in the protection scope of the present application.

Claims

1. A machine tool, characterized in that: include: A first cutting fluid filter unit; A secondary oil tank, wherein the secondary oil tank is provided with a second cutting fluid filter portion, wherein the second cutting fluid filter portion is suitable for filtering the cutting fluid filtered by the first cutting fluid filter portion; A main oil tank and a filter, wherein the main oil tank is connected to the auxiliary oil tank and the filter, and the filter is suitable for filtering the cutting fluid filtered by the second cutting fluid filter; A cooling assembly is mounted on the main oil tank and is suitable for cooling the cutting fluid in the main oil tank.

2. The machine tool according to claim 1, characterized in that: The main oil tank is provided with an oil cavity, and the filter is located outside the oil cavity. The machine tool also includes a first pipe and a second pipe. The first pipe passes through the main oil tank, and the first pipe is connected between the outlet end of the auxiliary oil tank and the inlet end of the filter. The inlet end of the second pipe is connected to the outlet end of the filter and the outlet end of the second pipe is located in the oil cavity.

3. The machine tool according to claim 1, characterized in that: The cooling assembly comprises a cooling element and a stirring element. The main oil tank is provided with an oil cavity. The cooling element and the stirring element are both located in the oil cavity. The cooling element is arranged around the outer periphery of the stirring element.

4. The machine tool according to claim 3, characterized in that: The stirring member includes a driving body, a driving rod and a plurality of fan blades, the driving rod is connected to the driving body and the fan blades, the plurality of fan blades are distributed at intervals along the axial direction of the driving rod, the cooling member is arranged around the outer periphery of the plurality of fan blades, and the driving body is suitable for driving the driving rod to rotate, so as to drive the plurality of fan blades to rotate synchronously.

5. The machine tool according to claim 3, characterized in that: The cooling assembly also includes a condenser, a compressor and a heat sink. The condenser, the compressor and the heat sink are all located outside the oil chamber. The compressor is connected between the condenser and the cooling element. The refrigerant circulates among the compressor, the condenser and the cooling element. The heat sink is arranged on a side of the condenser away from the cooling element and is suitable for dissipating heat from the condenser.

6. The machine tool according to claim 1, characterized in that: The first cutting fluid filter portion includes a plurality of oil filter meshes, and the apertures of the plurality of oil filter meshes are 0.5 mm to 20 mm.

7. The machine tool according to claim 1, characterized in that: The filter comprises a pressure measuring component and a pressure switch. The filter is provided with an installation cavity. The pressure measuring component and the pressure switch are both located outside the installation cavity. The pressure measuring component and the pressure switch are arranged at intervals.

8. The machine tool according to claim 1, characterized in that: The auxiliary oil tank is provided with a third cutting fluid filter part, a fourth cutting fluid filter part and a fifth cutting fluid filter part. The first cutting fluid filter part, the third cutting fluid filter part, the fourth cutting fluid filter part, the second cutting fluid filter part and the fifth cutting fluid filter part are connected in sequence, and the filter is suitable for filtering the cutting fluid filtered by the fifth cutting fluid filter part.

9. The machine tool according to claim 1, characterized in that: The main oil tank is provided with a sixth cutting fluid filter portion, the sixth cutting fluid filter portion is located in the main oil tank, and the sixth cutting fluid filter portion is suitable for filtering the cutting fluid filtered by the filter.

10. The machine tool according to claim 1, characterized in that The machine tool further comprises a first liquid level sensor and a second liquid level sensor, wherein the first liquid level sensor is mounted on the auxiliary oil tank, and the second liquid level sensor is mounted on the main oil tank.

Images