Metal sawing machine oil-water dual medium independent cooling circulation system

Abstract

The application discloses a metal sawing machine oil-water dual-medium independent cooling circulating system, which comprises a sawing machine body, a plate saw driven and arranged on the sawing machine body, and a cooling spraying circulating assembly arranged in the sawing machine body; the cooling spraying circulating assembly comprises a water cooling circulating assembly and an oil cooling circulating assembly which are completely physically isolated from each other; the water cooling circulating assembly comprises a water tank arranged on one side in the sawing machine body, a water pump connected with the water tank, and spraying nozzles connected with the water pump, wherein the spraying nozzles are arranged opposite to a cutting meshing area of the plate saw; the oil cooling circulating assembly comprises an oil tank arranged on the other side in the sawing machine body, an oil pump connected with the oil tank, and a plate saw clamping spraying assembly connected with the oil pump, wherein the plate saw clamping spraying assembly is arranged in a non-cutting area along the length direction of the plate saw; and the sawing machine body is further provided with a switching valve connected with the water cooling circulating assembly and the oil cooling circulating assembly.

Description

Technical Field

[0001] This invention relates to the field of metal cutting equipment, and in particular to a metal sawing machine with independent oil-water dual-medium cooling circulation system. Background Technology

[0002] When metal sawing machines cut carbon steel, alloy steel, stainless steel, and hot and cold medium-thick plates, the high-speed friction of the saw blade generates a large amount of high cutting temperature. If the cooling and lubrication are not matched, it is very easy to cause the saw blade to anneal at high temperature, chip teeth, and deform. At the same time, it will result in excessive burrs on the cut surface of the workpiece and unqualified processing accuracy.

[0003] In existing technologies, the cooling methods for sawing machines are generally either water cooling or oil cooling alone.

[0004] Single water cooling has a fast heat dissipation speed and low production cost, but it has no lubrication effect at all, resulting in extremely high wear on the saw blade when cutting thick plates and high-hardness materials at high speed.

[0005] While single-oil lubrication offers excellent cutting precision and high cutting accuracy, it suffers from low heat dissipation efficiency. Continuous high-speed operation leads to severe heat buildup, which can cause problems such as excessively high oil temperature, smoke, and carbon buildup, resulting in low processing efficiency and high material costs.

[0006] The few existing dual-cooling retrofit equipment on the market mostly adopt a simple structure with a shared housing, shared pipelines, and shared return chamber. During use, it is very easy to encounter faults such as oil-water crossflow, media emulsification and deterioration, pipeline blockage, and pump damage, which cannot meet the needs of stable industrial mass production. Therefore, a metal sawing machine oil-water dual-medium independent cooling circulation system is proposed. Summary of the Invention

[0007] To overcome the shortcomings mentioned above, the present invention aims to provide a technical solution that can solve the above problems.

[0008] A metal sawing machine with independent oil-water dual-medium cooling circulation system includes a sawing machine body, a plate saw mounted on the sawing machine body, and a cooling spray circulation assembly mounted inside the sawing machine body.

[0009] The cooling spray circulation assembly includes a water-cooled circulation assembly and an oil-cooled circulation assembly that are completely physically isolated from each other.

[0010] The water-cooled circulation assembly includes a water tank located inside the saw body on one side, a water pump connected to the water tank, and a spray nozzle connected to the water pump. The spray nozzle is positioned directly in front of the cutting meshing area of ​​the panel saw.

[0011] The water pump draws water from the tank to the spray nozzles, and continuously sprays and cools the cutting area of ​​the panel saw through the spray nozzles.

[0012] The oil cooling circulation assembly includes an oil tank located on the other side inside the saw body, an oil pump connected to the oil tank, and a saw clamping spray assembly connected to the oil pump. The saw clamping spray assembly is arranged in the non-cutting area along the length of the saw.

[0013] The panel saw clamping spray assembly includes a first panel saw clamping block and a second panel saw clamping block arranged in pairs on the front and back sides of the panel saw. The inner working surface of the first panel saw clamping block is provided with a second tungsten carbide sheet attached to the front side of the panel saw, and the inner working surface of the second panel saw clamping block is provided with a first tungsten carbide sheet attached to the back side of the panel saw.

[0014] The oil pump draws the cutting oil from the oil tank to the first and second panel saw clamping blocks, and then the oil flows from inside the first and second panel saw clamping blocks to the second and first tungsten steel sheets, so that the working surfaces of the second and first tungsten steel sheets in contact with the panel saw are continuously sprayed with cutting oil, and the cutting meshing area of ​​the panel saw is sprayed with oil for cooling and lubrication.

[0015] The saw body is also equipped with a switching valve that is connected to the water cooling circulation component and the oil cooling circulation component. The switching valve is used to selectively open the water cooling circulation component / oil cooling circulation component to cool the panel saw.

[0016] Preferably, the saw body is provided with a spray nozzle fixing frame, and the spray nozzle fixing frame is positioned directly opposite the cutting meshing area of ​​the panel saw, and the spray nozzle is fixed obliquely on the spray nozzle fixing frame.

[0017] Preferably, the saw body has first flow channels formed on both sides of the panel saw, and the first flow channels are aligned and connected to the first panel saw clamping block and the second panel saw clamping block. The first flow channels are also provided with a first oil inlet and a second oil inlet connected to the oil pump. Through the first oil inlet and the second oil inlet, the cutting oil drawn from the oil tank by the oil pump flows into the first flow channel and then continuously flows to the first panel saw clamping block and the second panel saw clamping block. This causes the working surfaces of the second tungsten steel sheet and the first tungsten steel sheet that are in contact with the panel saw to be continuously sprayed with cutting oil, and the cutting meshing area of ​​the panel saw is sprayed with oil for cooling and lubrication.

[0018] Preferably, the first board saw clamping block has a third flow channel formed inside, which is aligned and communicates with the first flow channel, and the other end of the third flow channel is connected to the second tungsten steel sheet, and the cutting oil flowing inside the first flow channel flows to the inside of the second tungsten steel sheet through the third flow channel.

[0019] The working surface of the second tungsten carbide sheet in contact with the panel saw is formed and extended with a sixth flow channel, and the sixth flow channel is formed with a second oil outlet that communicates with the third flow channel, so that the cutting material flowing out of the third flow channel continues to flow out through the second oil outlet and flows along the path of the sixth flow channel.

[0020] Preferably, a second flow channel is provided between the first flow channel and the third flow channel, and the second flow channel is formed inside the saw body, and the two ends of the second flow channel are respectively aligned and connected with the first flow channel and the third flow channel.

[0021] Preferably, the second board saw clamping block has a fourth flow channel formed inside, which is aligned and communicates with the first flow channel, and the other end of the fourth flow channel is connected to the first tungsten steel sheet, and the cutting oil flowing inside the first flow channel flows into the first tungsten steel sheet through the fourth flow channel.

[0022] The working surface of the first tungsten carbide sheet in contact with the panel saw is formed and extended with a fifth flow channel, and the fifth flow channel is formed with a first oil outlet that communicates with the third flow channel, so that the cutting material flowing out of the third flow channel continuously flows out through the first oil outlet and flows along the path of the fifth flow channel.

[0023] Preferably, the oil pump is provided with a third oil outlet and a fourth oil outlet connected to the first oil inlet and the second oil inlet. The saw body is also provided with a diversion valve to guide the flow between the first oil inlet, the second oil inlet, the third oil outlet and the fourth oil outlet. The diversion valve allows the cutting oil in the oil tank to flow from the first oil inlet and the second oil inlet to the first oil inlet and the second oil inlet, and then from the first oil inlet and the second oil inlet to the first flow channel, and finally to the saw clamping spray assembly.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] (1) When cutting ordinary carbon steel, thin plates and conventional profiles, the water cooling circulation component can be turned on separately to quickly dissipate heat, clean up chips and reduce production costs by utilizing the high specific heat capacity of water cooling.

[0026] (2) When cutting high-hardness workpieces such as stainless steel, alloy steel, and thick plates, the oil cooling circulation component can be turned on separately to form a protective film on the tooth surface using cutting oil, thereby reducing friction, noise and temperature, and ensuring cutting accuracy.

[0027] (3) When cutting large quantities of heavy loads for a long time, the water cooling circulation component and the oil cooling circulation component can be turned on at the same time to achieve dual protection of heat dissipation and lubrication.

[0028] (4) The two cooling systems are completely independent, eliminating oil-water cross-contamination, media emulsification, and pipeline blockage from the source, resulting in extremely strong equipment stability.

[0029] (5) Water cooling, oil cooling, or dual cooling can be freely selected according to processing needs, fully covering ordinary plates, thick plates, hard materials, and heavy-duty continuous cutting conditions.

[0030] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 A schematic diagram of a metal sawing machine with independent oil-water dual-medium cooling circulation system;

[0033] Figure 2 This is another structural schematic diagram of an independent oil-water dual-medium cooling circulation system for a metal saw.

[0034] Figure 3 This is a schematic diagram of the internal structure of an independent oil-water dual-medium cooling circulation system for a metal saw.

[0035] Figure 4 This is another structural schematic diagram of an independent cooling circulation system for a metal sawing machine with both oil and water media.

[0036] Figure 5 This is another structural schematic diagram of an independent oil-water dual-medium cooling circulation system for a metal sawing machine.

[0037] Figure 6 This is a schematic diagram of the structure of the second panel saw clamping block;

[0038] Figure 7 This is another structural schematic diagram of the second panel saw clamping block;

[0039] Figure 8 This is a schematic diagram of the structure of the clamping block of the first panel saw;

[0040] Figure 9 This is a schematic diagram of the fuel tank structure.

[0041] The diagram shows: 1. Band saw body, 2. First band saw clamping block, 3. Band saw, 4. Diverter valve, 5. Oil tank, 6. Second band saw clamping block, 7. First flow channel, 8. Second flow channel, 9. Third flow channel, 10. Fourth flow channel, 11. First oil inlet, 12. Water pump, 13. Spray nozzle, 14. Spray nozzle fixing bracket, 15. Second oil inlet, 16. Water tank, 17. First tungsten carbide sheet, 18. First oil outlet, 19. Fifth flow channel, 20. Second tungsten carbide sheet, 21. Sixth flow channel, 22. Second oil outlet, 23. Oil pump, 24. Exhaust pipe, 25. Third oil outlet, 26. Fourth oil outlet. Detailed Implementation

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

[0043] Please see Figure 1-9 In this embodiment of the invention, a metal sawing machine oil-water dual-medium independent cooling circulation system includes a sawing machine body 1, a plate saw 3 driven and mounted on the sawing machine body 1, and a cooling spray circulation assembly mounted inside the sawing machine body 1.

[0044] The cooling spray circulation assembly includes a water-cooled circulation assembly and an oil-cooled circulation assembly that are completely physically isolated from each other.

[0045] The water cooling circulation assembly includes a water tank 16 located inside one side of the saw body 1, a water pump 12 connected to the water tank 16, and a spray nozzle 13 connected to the water pump 12. The spray nozzle 13 is positioned directly opposite the cutting engagement area of ​​the panel saw 3.

[0046] The water pump 12 draws water from the water tank 6 to the spray nozzle 13, and continuously sprays and cools the cutting meshing area of ​​the panel saw 3 through the spray nozzle 13.

[0047] The oil cooling circulation assembly includes an oil tank 5 located on the other side inside the saw body 1, an oil pump 26 connected to the oil tank 5, and a saw clamping spray assembly connected to the oil pump 26. The saw clamping spray assembly is arranged in the non-cutting area along the length of the saw 3.

[0048] The panel saw clamping spray assembly includes a first panel saw clamping block 2 and a second panel saw clamping block 6 arranged in pairs on the front and back sides of the panel saw 3. The inner working surface of the first panel saw clamping block 2 is provided with a second tungsten carbide sheet 20 attached to the front side of the panel saw 3, and the inner working surface of the second panel saw clamping block 6 is provided with a first tungsten carbide sheet 17 attached to the back side of the panel saw 3.

[0049] The oil pump 26 draws the cutting oil from the oil tank 5 to the first saw clamping block 2 and the second saw clamping block 6, and then the oil flows from the first saw clamping block 2 and the second saw clamping block 6 to the second tungsten steel sheet 20 and the first tungsten steel sheet 17, so that the working surfaces of the second tungsten steel sheet 20 and the first tungsten steel sheet 17 in contact with the saw 3 continuously spray cutting oil, and spray the cutting meshing area of ​​the saw 3 to cool and lubricate it.

[0050] The saw body 1 is also equipped with a switching valve (not shown in the figure) connected to the water cooling circulation component and the oil cooling circulation component. The switching valve is used to selectively open the water cooling circulation component / oil cooling circulation component to cool the panel saw 3.

[0051] Therefore, in specific use cases, at least three methods can be implemented:

[0052] (1) When cutting ordinary carbon steel, thin plates and conventional profiles, the water cooling circulation component can be turned on separately to quickly dissipate heat, clean up chips and reduce production costs by utilizing the high specific heat capacity of water cooling.

[0053] (2) When cutting high-hardness workpieces such as stainless steel, alloy steel, and thick plates, the oil cooling circulation component can be turned on separately to form a protective film on the tooth surface using cutting oil, thereby reducing friction, noise and temperature, and ensuring cutting accuracy.

[0054] (3) When cutting large quantities of heavy loads for a long time, the water cooling circulation component and the oil cooling circulation component can be turned on at the same time to achieve dual protection of heat dissipation and lubrication.

[0055] In the case of method (1), when in use, a box is provided under the saw body 1 to receive the wastewater left by the spraying, and then the wastewater inside the box is filtered for impurities through conventional filter components. At the same time, the filtered water is transferred back to the water tank 16 and then flows to the spray nozzle 13 to spray the saw 3 to cool it down.

[0056] When the board saw 3 is used in mode (1) and there is residual liquid on its surface, when switching to mode (2) to cut the corresponding board, the residual liquid on the surface of the board saw 3 is dried by the conventional hot air conveying component. When the board saw 3 is sprayed with lubricating agent and cooled down in mode (2), there is no residual liquid on the surface of the board saw 3, which will not affect the effect of spraying lubricating agent and cooling down of the cutting oil.

[0057] In the case of method (2), when the saw body 1 is used, a box is provided below to receive the waste oil left by the spraying. The waste oil inside the box is filtered for impurities through a conventional filter component. At the same time, the filtered water is transferred back to the oil tank 5 and then flows to the saw clamping spray component to spray the saw 3 for lubrication and cooling.

[0058] When the board saw 3 is used in mode (2) and there is residual oil on its surface, when switching to mode (1) to cut the corresponding board, the residual oil on the surface of the board saw 3 is continuously sprayed by the water cooling circulation component until there is no residual oil on the surface of the board saw 3. The oil and water generated during the spraying process are carried by a separate box, which can also carry the oil and water generated when using mode (3). The oil and water are separated by a known oil-water separator. The separated water and oil are filtered and then guided to the water tank 16 and the oil tank 5 for subsequent use of the water cooling circulation component / oil cooling circulation component.

[0059] The saw body 1 is provided with a spray nozzle fixing frame 14, and the spray nozzle fixing frame 14 is positioned directly opposite the cutting engagement area of ​​the panel saw 3. The spray nozzle 13 is obliquely fixed on the spray nozzle fixing frame 14, so that the spray nozzle 13 is positioned directly opposite the cutting engagement area of ​​the panel saw 3.

[0060] The saw body 1 has first flow channels 7 formed on both sides of the saw 3. The first flow channels 7 are aligned and connected with the first saw clamping block 2 and the second saw clamping block 6. The first flow channels 7 are also provided with a first oil inlet 11 and a second oil inlet 15 connected to the oil pump 23. The cutting oil drawn from the oil tank 5 by the oil pump 23 flows into the first flow channel 7 through the first oil inlet 11 and the second oil inlet 12. Then, the oil flows continuously to the first saw clamping block 2 and the second saw clamping block 6 through the first flow channel 7, so that the working surfaces of the second tungsten steel sheet 20 and the first tungsten steel sheet 17 in contact with the saw 3 are continuously sprayed with cutting oil, and the cutting meshing area of ​​the saw 3 is sprayed with oil for cooling and lubrication.

[0061] The first board saw clamping block 2 has a third flow channel 9 formed inside, which is aligned and connected with the first flow channel 7. The other end of the third flow channel 9 is connected to the second tungsten steel sheet 20, and the cutting oil flowing inside the first flow channel 7 flows into the second tungsten steel sheet 20 through the third flow channel 9.

[0062] The working surface of the second tungsten steel sheet 20 that contacts the panel saw 3 is formed with a sixth flow channel 21, and the sixth flow channel 21 is formed with a second oil outlet 22 that communicates with the third flow channel 9. This allows the cutting oil flowing out of the third flow channel 9 to continuously flow out through the second oil outlet 22 and flow along the path of the sixth flow channel 21. However, since the sixth flow channel 21 is open, the cutting oil flowing in the sixth flow channel 21 will continuously spray onto the panel saw 3, thereby spraying and cooling the cutting meshing area of ​​the panel saw 3 for lubrication.

[0063] A second flow channel 8 is provided between the first flow channel 7 and the third flow channel 9, and the second flow channel 8 is formed inside the saw body 1, and the two ends of the second flow channel 8 are aligned and connected with the first flow channel 7 and the third flow channel 9 respectively.

[0064] The second plate saw clamping block 6 has a fourth flow channel 10 formed inside, which is aligned and communicates with the first flow channel 7. The other end of the fourth flow channel 10 is connected to the first tungsten carbide sheet 17, and the cutting oil flowing inside the first flow channel 7 flows into the first tungsten carbide sheet 17 through the fourth flow channel 10.

[0065] The working surface of the first tungsten carbide sheet 17 that contacts the panel saw 3 is formed with a fifth flow channel 19, and the fifth flow channel 19 is formed with a first oil outlet 18 that communicates with the third flow channel 9. This allows the cutting oil flowing out of the third flow channel 9 to continuously flow out through the first oil outlet 18 and flow along the path of the fifth flow channel 19. However, since the fifth flow channel 19 is open, the cutting oil flowing in the fifth flow channel 19 will continuously spray onto the panel saw 3, thereby spraying and cooling the cutting meshing area of ​​the panel saw 3 for lubrication.

[0066] The oil pump 23 is provided with a third oil outlet 25 and a fourth oil outlet 26 connected to the first oil inlet 11 and the second oil inlet 15. The saw body 1 is also provided with a diversion valve 4 for guiding the flow between the first oil inlet 11, the second oil inlet 15, the third oil outlet 25 and the fourth oil outlet 26. Through the diversion valve 4, the cutting oil in the oil tank 5 can be diverted from the first oil inlet 11 and the second oil inlet 15 to the first oil inlet 11 and the second oil inlet 15, and then from the first oil inlet 11 and the second oil inlet 15 to the inside of the first flow channel 7, and finally delivered to the saw clamping spray assembly.

[0067] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A dual-medium independent cooling circulation system for oil and water in a metal sawing machine, characterized in that, Includes a saw body, a drive plate saw mounted on the saw body, and a cooling spray circulation assembly located inside the saw body; The cooling spray circulation assembly includes a water-cooled circulation assembly and an oil-cooled circulation assembly that are completely physically isolated from each other. The water-cooled circulation assembly includes a water tank located inside the saw body on one side, a water pump connected to the water tank, and a spray nozzle connected to the water pump. The spray nozzle is positioned directly in front of the cutting meshing area of ​​the panel saw. The water pump draws water from the tank to the spray nozzles, and continuously sprays and cools the cutting area of ​​the panel saw through the spray nozzles. The oil cooling circulation assembly includes an oil tank located on the other side inside the saw body, an oil pump connected to the oil tank, and a saw clamping spray assembly connected to the oil pump. The saw clamping spray assembly is arranged in the non-cutting area along the length of the saw. The panel saw clamping spray assembly includes a first panel saw clamping block and a second panel saw clamping block arranged in pairs on the front and back sides of the panel saw. The inner working surface of the first panel saw clamping block is provided with a second tungsten carbide sheet attached to the front side of the panel saw, and the inner working surface of the second panel saw clamping block is provided with a first tungsten carbide sheet attached to the back side of the panel saw. The oil pump draws the cutting oil from the oil tank to the first and second panel saw clamping blocks, and then the oil flows from inside the first and second panel saw clamping blocks to the second and first tungsten steel sheets, so that the working surfaces of the second and first tungsten steel sheets in contact with the panel saw are continuously sprayed with cutting oil, and the cutting meshing area of ​​the panel saw is sprayed with oil for cooling and lubrication. The saw body is also equipped with a switching valve that is connected to the water cooling circulation component and the oil cooling circulation component. The switching valve is used to selectively open the water cooling circulation component / oil cooling circulation component to cool the panel saw.

2. The independent oil-water dual-medium cooling circulation system for a metal sawing machine according to claim 1, characterized in that, The saw body is equipped with a spray nozzle fixing frame, and the spray nozzle fixing frame is positioned directly opposite the cutting meshing area of ​​the panel saw, and the spray nozzle is fixed obliquely on the spray nozzle fixing frame.

3. The independent oil-water dual-medium cooling circulation system for a metal sawing machine according to claim 1, characterized in that, The saw body has first flow channels formed on both sides of the saw, and the first flow channels are aligned and connected to the first saw clamping block and the second saw clamping block. The first flow channels are also provided with a first oil inlet and a second oil inlet connected to the oil pump. Through the first oil inlet and the second oil inlet, the cutting oil drawn from the oil tank by the oil pump flows into the first flow channel and then continuously flows to the first saw clamping block and the second saw clamping block. This causes the working surfaces of the second tungsten steel sheet and the first tungsten steel sheet that are in contact with the saw to be continuously sprayed with cutting oil, and the cutting and meshing areas of the saw are sprayed with oil for cooling and lubrication.

4. The independent oil-water dual-medium cooling circulation system for a metal sawing machine according to claim 3, characterized in that, The first plate saw clamping block has a third flow channel formed inside, which is aligned and connected with the first flow channel. The other end of the third flow channel is connected to the second tungsten steel sheet, and the cutting oil flowing inside the first flow channel flows into the second tungsten steel sheet through the third flow channel. The working surface of the second tungsten carbide sheet in contact with the panel saw is formed and extended with a sixth flow channel, and the sixth flow channel is formed with a second oil outlet that communicates with the third flow channel, so that the cutting material flowing out of the third flow channel continues to flow out through the second oil outlet and flows along the path of the sixth flow channel.

5. The independent oil-water dual-medium cooling circulation system for a metal sawing machine according to claim 4, characterized in that, A second flow channel is provided between the first flow channel and the third flow channel, and the second flow channel is formed inside the saw body, and the two ends of the second flow channel are respectively aligned and connected with the first flow channel and the third flow channel.

6. The independent oil-water dual-medium cooling circulation system for a metal sawing machine according to claim 4, characterized in that, The second plate saw clamping block has a fourth flow channel formed inside, which is aligned and connected with the first flow channel. The other end of the fourth flow channel is connected to the first tungsten carbide sheet, and the cutting oil flowing inside the first flow channel flows into the first tungsten carbide sheet through the fourth flow channel. The working surface of the first tungsten carbide sheet in contact with the panel saw is formed and extended with a fifth flow channel, and the fifth flow channel is formed with a first oil outlet that communicates with the third flow channel, so that the cutting material flowing out of the third flow channel continuously flows out through the first oil outlet and flows along the path of the fifth flow channel.

7. The independent oil-water dual-medium cooling circulation system for a metal sawing machine according to claim 3, characterized in that, The oil pump is equipped with a third oil outlet and a fourth oil outlet connected to the first oil inlet and the second oil inlet. The saw body is also equipped with a diversion valve to guide the flow between the first oil inlet, the second oil inlet, the third oil outlet and the fourth oil outlet. The diversion valve allows the cutting oil in the oil tank to flow from the first oil inlet and the second oil inlet to the first oil inlet and the second oil inlet, and then from the first oil inlet and the second oil inlet to the first flow channel, and finally to the saw clamping spray assembly.

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