Sawing machine feeding auxiliary mechanism

Abstract

The invention discloses a sawing machine feeding auxiliary mechanism which comprises a bottom plate, an auxiliary positioning assembly, an auxiliary liquid cooling assembly and a cooling liquid circulating assembly, the auxiliary positioning assembly is composed of a connecting positioning plate, an outer side plate and an inner side plate and used for assisting accurate positioning of a saw disc and changing of the chip removal direction during sawing machine feeding, and the connecting positioning plate is fixedly connected with the bottom plate; the outer side plate and the inner side plate are arranged on the two sides of the connecting positioning plate respectively, the ends of the outer side plate and the inner side plate jointly form a chip removal hole with a downward opening and a trapezoidal section, and the auxiliary positioning assembly is driven by a hydraulic structure to work. By arranging the auxiliary positioning assembly, the hydraulic structure and the like, the feeding stability of the sawing machine can be improved in an auxiliary mode, the saw blade is kept not deviating, the precision, efficiency and quality of feeding work of the sawing machine are improved, the saw blade can be effectively cooled in an auxiliary mode in the working process, long-term high-temperature operation is avoided, the service life of the saw blade is prolonged, and deformation of the saw blade is prevented; the feeding precision of the sawing machine is further ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent manufacturing equipment industry, and in particular to a sawing machine feeding auxiliary mechanism. Background Art

[0002] ‌Sawing machines are mainly used to cut various metal materials, including round materials, square materials, tube materials and profiles. ‌They are usually used in material preparation workshops to cut various bars, tubes and other profiles. The processing accuracy of sawing machines is generally not high, but its main function is to saw the material through tools such as circular saw blades, saw bands or saw blades.

[0003] In order to solve the problem that the sawing machine in the prior art has inaccurate positioning of the plate, plates of different sizes cannot be calibrated and positioned before sawing, and are prone to shaking during sawing, resulting in low sawing accuracy, the Chinese patent publication number "CN107855595B" proposes a fully automatic multi-positioning high-speed sawing machine, which mainly positions the plate in a three-dimensional manner in the front, back, left, right, up and down directions, so that the positioning of the entire plate is relatively accurate during sawing, plates of different sizes can be calibrated and positioned before sawing, and are not prone to shaking during sawing, and the sawing accuracy is high, and the structure is simple and reasonable. However, in this scheme, no improvement is made to the saw disc itself, so there is a certain instability when the saw disc is feeding, the saw blade may be offset, and the feeding accuracy of the sawing machine cannot be guaranteed; and no special saw blade cooling structure is set, the temperature of the saw blade is extremely high when the sawing machine is feeding, the service life of the saw blade is low and it is easy to deform under long-term work, which will also affect the feeding accuracy of the sawing machine. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the prior art, and to propose a sawing machine feeding auxiliary mechanism, which can accurately position the saw disk, assist in improving the stability of the sawing machine feeding operation, keep the saw blade from deviating, and improve the accuracy, efficiency and quality of the sawing machine feeding work.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A sawing machine feeding auxiliary mechanism comprises a bottom plate, an auxiliary positioning component, an auxiliary liquid cooling component and a coolant circulation component. The auxiliary positioning assembly is composed of a connecting positioning plate, an outer plate, and an inner plate, and is used to assist the saw disc in accurate positioning when the sawing machine is feeding, and to change the direction of chip removal. The connecting positioning plate is fixedly connected to the bottom plate, and the outer plate and the inner plate are arranged on both sides of the connecting positioning plate, and the ends of the two plates jointly form a chip removal hole with an opening facing downward and a trapezoidal cross section. The auxiliary positioning assembly is driven by a hydraulic structure; The auxiliary liquid cooling component is composed of a device seat, a first pump, a liquid cooling pipeline and a plurality of liquid spray nozzles, and is used to spray coolant to the saw blade to assist in cooling the saw blade. A liquid storage cavity is provided in the device seat, and a serpentine cooling pipe extending to the outside of the device seat is provided in the liquid storage cavity. The first pump is fixed to the side wall of the device seat, and its liquid inlet is connected to the liquid storage cavity through the liquid inlet pipe, and its liquid outlet is connected to the liquid cooling pipeline through the liquid outlet pipe. The plurality of liquid spray nozzles are evenly distributed on the side of the liquid cooling pipeline and are all facing the direction of the saw disk; The coolant circulation component consists of a liquid collecting tank and a second pump, which are used to collect the coolant spilled after spraying. The liquid collecting tank is opened at the upper end of the device seat, and the second pump is fixed to the side wall of the device seat. Its liquid inlet is connected to the liquid collecting tank through a circulation pipe, and its liquid outlet is connected to the liquid storage chamber through a reflux pipe.

[0006] Preferably, guide rail sliders and drag chain brackets are fixedly installed on both sides of the bottom plate for active connection with the sawing machine body, and the first wear-resistant tungsten steel sheet and the second wear-resistant tungsten steel sheet are fixedly provided on the upper sides of the ends of the outer plate and the inner plate.

[0007] Preferably, the hydraulic structure includes a first hydraulic cylinder, a second hydraulic cylinder, a positioning slide shaft and an oil inlet pipe. The first hydraulic cylinder and the second hydraulic cylinder are fixed in parallel as a whole and are connected to the oil inlet pipe, and a synchronization valve is provided on the upper part of the cylinder body. The first hydraulic cylinder and the second hydraulic cylinder are synchronously connected to the inner plate and are provided with a tension spring inside. The positioning slide shaft is arranged between the outer plate and the inner plate to maintain the displacement direction of the outer plate and the inner plate.

[0008] Preferably, a filter plate is fixedly mounted on the upper end of the liquid collecting tank, and the filter plate is linearly provided with seepage holes for separating the coolant and workpiece debris falling into the liquid collecting tank.

[0009] Preferably, an inflatable enclosure is disposed around the upper end of the device seat at the notch of the liquid collecting tank. The inflatable enclosure expands in the longitudinal direction and increases in height when inflated, and contracts in the longitudinal direction and decreases in height when exhausted. A pair of sliding plates are symmetrically slidably connected to the device seat. The pair of sliding plates are fixedly connected to the outer plate and the inner plate through connecting rods, respectively, and a control structure for controlling the lifting and lowering of the inflatable enclosure is installed between the pair of sliding plates.

[0010] Preferably, the control structure comprises a telescopic airbag, both ends of which are fixedly connected to the inner sides of a pair of sliding plates, and both ends of the telescopic airbag are connected to both ends of the inflatable enclosure through air guide pipes.

[0011] Preferably, a pushing structure for extending the serpentine cooling tube during operation is installed on the upper end of the device seat, and the pushing structure includes a gear, a first rack and a second rack. A pair of the gears are symmetrically rotatably connected to the upper end of the device seat, and the first rack and the second rack are both slidably connected to the upper end of the device seat. The first rack and the second rack are arranged on both sides of the gear and are both meshed with the gear. The first rack is fixedly connected to the sliding plate, and the second rack is fixedly connected to the serpentine cooling tube through a bending rod.

[0012] Preferably, after the first hydraulic cylinder and the second hydraulic cylinder reach the set pressure, the first wear-resistant tungsten steel sheet and the second wear-resistant tungsten steel sheet leave corresponding gaps with both sides of the saw blade, so as to keep the saw blade and the workpiece at the same angle during operation.

[0013] The present invention has the following beneficial effects: 1. By setting up auxiliary positioning components and hydraulic structures, when the sawing machine is feeding, the pressure of the first and second hydraulic cylinders is greater than the spring tension, forming compression. The first and second hydraulic cylinders stop automatically when they reach the sensor pressure, and keep the set pressure during operation. If the pressure is not enough, the hydraulic system starts to automatically make up the pressure. After the hydraulic cylinder reaches the set pressure, the first and second wear-resistant tungsten steel sheets at the front and the two sides of the saw blade leave corresponding gaps, and the saw blade and the workpiece are kept at 90 degrees during operation. The feed auxiliary mechanism works forward synchronously with the saw blade during operation. When the working procedure is completed, a signal is given to the hydraulic system to retract the first and second hydraulic cylinders, and open the first and second wear-resistant tungsten steel sheets to complete the entire operation, thereby helping to improve the stability of the sawing machine feeding operation, keep the saw blade from deflecting, and improve the accuracy, efficiency and quality of the sawing machine feeding operation; 2. By setting up an auxiliary liquid cooling component, when the sawing machine is working, the first pump pumps the coolant in the liquid storage chamber into the cooling channel, and then sprays it from the various spray nozzles on the side wall of the cooling channel to the surface of the saw blade, which can effectively assist in cooling the saw blade during work, thereby avoiding long-term high-temperature operation, increasing the service life of the saw blade, preventing the saw blade from deformation, and further ensuring the feeding accuracy of the sawing machine; 3. By setting up the coolant circulation component, firstly, the debris generated when the sawing machine is fed and the coolant sprayed and dropped during cooling can be collected, the coolant and the debris are separated by screening through the filter plate, and the second pump pumps the coolant in the liquid collecting tank back to the liquid storage chamber, thereby forming a circulation of the coolant. The serpentine cooling pipe set in the liquid storage chamber can maintain the heat exchange between the coolant and the air, thereby ensuring that the coolant is always in a low temperature state; 4. By setting an inflatable enclosure, a control structure and a pushing structure, when the sawing machine is feeding, the telescopic airbag can be compressed, thereby inflating the inflatable enclosure to make it rise, ensuring that it can catch the debris and coolant more accurately to avoid splashing of coolant and debris; and when the sliding plate slides with the outer plate and the inner plate, the first rack will slide synchronously, and the first rack will indirectly drive the second rack to slide to both sides through the meshing action of the gears. When the second rack slides, it drives the serpentine cooling pipe to extend to the outside of the device seat, thereby increasing the contact area between the serpentine cooling pipe and the external air. When the coolant is circulated, it has a better heat dissipation effect, which can better ensure that the coolant in the liquid storage chamber is always in a low temperature state. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic structural diagram of an auxiliary positioning assembly of a sawing machine feeding auxiliary mechanism proposed by the present invention; Figure 2 A schematic structural diagram of an auxiliary liquid cooling assembly of a sawing machine feeding auxiliary mechanism proposed by the present invention; Figure 3 It is a structural schematic diagram of a coolant circulation assembly of a sawing machine feeding auxiliary mechanism proposed by the present invention; Figure 4 This is a schematic diagram of the connection between the inflatable enclosure and the control structure of the sawing machine feeding auxiliary mechanism proposed by the present invention; Figure 5 It is a schematic diagram of the connection of a sliding plate, a pushing structure and a serpentine cooling pipe of a sawing machine feeding auxiliary mechanism proposed by the present invention; Figure 6 The present invention is a schematic diagram of the connection of a pushing structure of a sawing machine feeding auxiliary mechanism.

[0015] In the figure: 1. bottom plate; 2. connecting positioning plate; 3. outer plate; 4. inner plate; 5. first hydraulic cylinder; 6. second hydraulic cylinder; 7. positioning slide shaft; 8. first wear-resistant tungsten steel sheet; 9. second wear-resistant tungsten steel sheet; 10. guide rail slider; 11. drag chain bracket; 12. oil inlet pipe; 13. chip removal hole; 14. device seat; 15. liquid collecting tank; 16. filter plate; 17. first pump; 18. liquid inlet pipe; 19. liquid outlet pipe; 20. serpentine cooling pipe; 21. cooling channel; 22. second pump; 23. circulation pipe; 24. reflux pipe; 25. liquid spray nozzle; 26. inflatable enclosure; 27. sliding plate; 28. telescopic airbag; 29. ​​connecting rod; 30. air guide pipe; 31. first rack; 32. gear; 33. second rack; 34. bending rod. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0017] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. Embodiment 1

[0018] Reference Figure 1 A sawing machine feeding auxiliary mechanism includes a base plate 1 and an auxiliary positioning assembly. The auxiliary positioning assembly consists of a connecting positioning plate 2, an outer plate 3, and an inner plate 4. It is used to assist the saw disc in precise positioning when the sawing machine is feeding and change the chip removal direction. The connecting positioning plate 2 is fixedly connected to the base plate 1, and the outer plate 3 and the inner plate 4 are arranged on both sides of the connecting positioning plate 2, and the ends of the two together form a chip removal hole 13 with an opening facing downward and a trapezoidal cross-section. The auxiliary positioning assembly is driven by a hydraulic structure.

[0019] Guide rail sliders 10 and drag chain brackets 11 are fixedly installed on both sides of the bottom plate 1 for active connection with the sawing machine body. The first wear-resistant tungsten steel sheet 8 and the second wear-resistant tungsten steel sheet 9 are fixedly installed on the upper sides of the ends of the outer plate 3 and the inner plate 4.

[0020] The hydraulic structure includes a first hydraulic cylinder 5, a second hydraulic cylinder 6, a positioning slide shaft 7 and an oil inlet pipe 12. The first hydraulic cylinder 5 and the second hydraulic cylinder 6 are fixed in parallel as a whole and are connected to the oil inlet pipe 12, and a synchronization valve is provided on the upper part of the cylinder body. The first hydraulic cylinder 5 and the second hydraulic cylinder 6 are synchronously and movably connected to the inner plate 4, and a tension spring is provided inside. The positioning slide shaft 7 is arranged between the outer plate 3 and the inner plate 4 to maintain the displacement direction of the outer plate 3 and the inner plate 4.

[0021] After the first hydraulic cylinder 5 and the second hydraulic cylinder 6 reach the set pressure, the first wear-resistant tungsten steel sheet 8 and the second wear-resistant tungsten steel sheet 9 leave corresponding gaps with both sides of the saw blade, and the saw blade is kept at 90 degrees to the workpiece during operation.

[0022] In this embodiment, the feed auxiliary mechanism can assist in maintaining the precise positioning of the saw disc, change the chip removal direction, and work synchronously with the main saw disc during operation. When the operation is completed, the system gives a completion signal, and the hydraulic system power unit automatically supplies oil to the first hydraulic cylinder 5 and the second hydraulic cylinder 6. The outer plate 3 and the inner plate 4 open synchronously to complete a work. The power part is fixed in parallel with the first hydraulic cylinder 5 and the second hydraulic cylinder 6 as a whole. A synchronization valve is provided on the upper part of the cylinder body. The first hydraulic cylinder 5 and the second hydraulic cylinder 6 work synchronously. A tension spring is provided inside. When not working, the spring is opened. When working, the hydraulic cylinder pressure is greater than the spring tension, forming a compression. A connecting positioning plate 2 is provided in the middle, and the two hydraulic cylinders reach the sensor It stops automatically when pressure is reached, and maintains the set pressure during operation. If the pressure is not enough, the hydraulic system starts to automatically supplement the pressure. The front is provided with a first wear-resistant tungsten steel sheet 8 and a second wear-resistant tungsten steel sheet 9. After the two hydraulic cylinders reach the set pressure, the two front wear-resistant tungsten steel sheets leave corresponding gaps on both sides of the saw blade. The saw blade and the workpiece are kept at 90 degrees during operation. The feed auxiliary mechanism works forward synchronously with the saw blade during operation. When the working procedure is completed, a signal is given to the hydraulic system to retract the two hydraulic cylinders and open the two wear-resistant tungsten steel sheets to complete the entire operation, thereby helping to improve the stability of the saw machine's feeding operation, keep the saw blade from deviating, and improve the accuracy, efficiency and quality of the saw machine's feeding work. Embodiment 2

[0023] Different from the first embodiment, Figure 2-3 , this embodiment also has the following further contents: It also includes an auxiliary liquid cooling component and a coolant circulation component. The auxiliary liquid cooling component consists of a device seat 14, a first pump 17, a liquid cooling pipe 21 and a plurality of liquid spray nozzles 25, which are used to spray coolant to the saw blade to assist in cooling the saw blade. A liquid storage chamber is provided in the device seat 14, and a serpentine cooling pipe 20 extending to the outside of the device seat 14 is provided in the liquid storage chamber. The first pump 17 is fixed to the side wall of the device seat 14, and its liquid inlet is connected to the liquid storage chamber through a liquid inlet pipe 18, and its liquid outlet is connected to the liquid cooling pipe 21 through a liquid outlet pipe 19. The plurality of liquid spray nozzles 25 are evenly distributed on the side of the liquid cooling pipe 21 and are all facing the direction of the saw disk; The coolant circulation component consists of a liquid collecting tank 15 and a second pump 22, which are used to collect the coolant spilled after spraying. The liquid collecting tank 15 is opened at the upper end of the device seat 14, and the second pump 22 is fixed to the side wall of the device seat 14. Its liquid inlet is connected to the liquid collecting tank 15 through a circulation pipe 23, and its liquid outlet is connected to the liquid storage chamber through a reflux pipe 24.

[0024] A filter plate 16 is fixedly mounted on the upper end of the liquid collecting tank 15 . The filter plate 16 is provided with seepage holes in its linear form for separating the coolant and workpiece debris falling into the liquid collecting tank 15 .

[0025] In this embodiment, when the sawing machine is working, the first pump 17 pumps the coolant in the liquid storage chamber into the cooling channel 21, and then sprays it from each liquid spray nozzle 25 on the side wall of the cooling channel 21 to the surface of the saw blade, which can effectively assist in cooling the saw blade during operation, thereby avoiding long-term high-temperature operation, increasing the service life of the saw blade, preventing the saw blade from deformation, and further ensuring the feeding accuracy of the sawing machine; The collecting tank 15 collects the debris generated when the sawing machine is fed and the coolant sprayed and dropped during cooling. The coolant and the debris are screened and separated by the filter plate 16. At the same time, the second pump 22 works to pump the coolant in the collecting tank 15 back into the liquid storage chamber, and then is pumped into the cooling channel 21 by the first pump 17, thereby forming a circulation of the coolant. The serpentine cooling pipe 20 arranged in the liquid storage chamber can maintain heat exchange between the coolant and the air, thereby ensuring that the coolant is always in a low temperature state. Embodiment 3

[0026] Reference Figure 4 Compared with the first and second embodiments, in this embodiment, the upper end of the device seat 14 is located at the notch of the liquid collecting tank 15 and is surrounded by an inflatable enclosure 26. The inflatable enclosure 26 expands in the longitudinal direction when inflated and contracts in the longitudinal direction when exhausted. A pair of sliding plates 27 are symmetrically slidably connected to the device seat 14. The pair of sliding plates 27 are fixedly connected to the outer plate 3 and the inner plate 4 through connecting rods 29, and a control structure for controlling the lifting and lowering of the inflatable enclosure 26 is installed between the pair of sliding plates 27.

[0027] The control structure includes a telescopic airbag 28 , both ends of which are fixedly connected to the inner sides of a pair of sliding plates 27 , and both ends of the telescopic airbag 28 are connected to both ends of the inflatable enclosure 26 through air guide pipes 30 .

[0028] In this embodiment, when the sawing machine is feeding, the first hydraulic cylinder 5 and the second hydraulic cylinder 6 drive the outer plate 3 and the inner plate 4 to be squeezed inward, thereby driving the sliding plate to slide inward through a pair of connecting rods 29. At this time, a pile of sliding plates 29 will squeeze the telescopic airbag 28, so that the air in the telescopic airbag 28 flows into the inflatable enclosure 26 through the air guide tube 30. After being inflated, the inflatable enclosure 26 will expand longitudinally, thereby rising, and the opening is close to the chip removal hole 13, ensuring that it can more accurately catch the chips and coolant and transfer them to the collecting tank 15, avoiding the splashing of coolant and chips to injure people, and at the same time it is more conducive to the recycling of chips and coolant. Embodiment 4

[0029] Reference Figure 5-6Compared with embodiments 1 to 3, a pushing structure for extending the serpentine cooling tube 20 during operation is installed on the upper end of the device seat 14 in this embodiment, and the pushing structure includes a gear 32, a first rack 31 and a second rack 33. A pair of gears 32 are symmetrically rotatably connected to the upper end of the device seat 14, the first rack 31 and the second rack 33 are both slidably connected to the upper end of the device seat 14, the first rack 31 and the second rack 33 are arranged on both sides of the gear 32 and are both meshed with the gear 32, the first rack 31 is fixedly connected to the sliding plate 27, and the second rack 33 is fixedly connected to the serpentine cooling tube 20 through a bending rod 34.

[0030] In this embodiment, when the sawing machine is feeding, the sliding plate 27 slides with the outer plate 3 and the inner plate 4, which causes the first rack 31 to slide synchronously. The first rack 31 indirectly drives the second rack 33 to slide to both sides through the meshing action of the gear 32. When the second rack 33 slides, the serpentine cooling tube 20 is driven to extend to the outside of the device seat 14 through the bending rod 34, thereby increasing the contact area between the serpentine cooling tube 20 and the external air. When the coolant is circulated, it has a better heat dissipation effect, which can better ensure that the coolant in the liquid storage chamber is always in a low temperature state.

[0031] When the sawing machine finishes working, the hydraulic pressure of the first hydraulic cylinder 5 and the second hydraulic cylinder 6 decreases, and the outer plate 3 and the inner plate 4 are pulled apart by the spring. At this time, the sliding plate 27 slides to both sides along with the outer plate 3 and the inner plate 4, and the first rack 31 slides to both sides synchronously, and the first rack 31 indirectly drives the second rack 33 to slide inward through the meshing action of the gear 32. When the second rack 33 slides, it drives the serpentine cooling tube 20 to shrink into the liquid storage chamber through the bending rod 34. At this time, the occupied area of ​​the serpentine cooling tube 20 can be reduced, and at the same time, a certain protection effect is formed on the serpentine cooling tube 20 to avoid the problem that it is easily damaged due to long-term exposure to the outside.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sawing machine feed auxiliary mechanism, comprising a base plate (1), an auxiliary positioning component, an auxiliary liquid cooling component and a coolant circulation component, characterized in that: The auxiliary positioning assembly is composed of a connecting positioning plate (2), an outer plate (3), and an inner plate (4), and is used to assist the saw disc in accurate positioning when the sawing machine is feeding, and to change the direction of chip removal. The connecting positioning plate (2) is fixedly connected to the bottom plate (1), and the outer plate (3) and the inner plate (4) are arranged on both sides of the connecting positioning plate (2), and the ends of the two plates jointly form a chip removal hole (13) with a downward opening and a trapezoidal cross section. The auxiliary positioning assembly is driven by a hydraulic structure; The auxiliary liquid cooling component is composed of a device seat (14), a first pump (17), a liquid cooling pipe (21) and a plurality of liquid spray nozzles (25), and is used for spraying cooling liquid onto the saw blade to assist in cooling the saw blade. A liquid storage chamber is provided in the device seat (14), and a serpentine cooling pipe (20) is provided in the liquid storage chamber extending outside the device seat (14). The first pump (17) is fixed to the side wall of the device seat (14), and its liquid inlet is connected to the liquid storage chamber through a liquid inlet pipe (18), and its liquid outlet is connected to the liquid cooling pipe (21) through a liquid outlet pipe (19). The plurality of liquid spray nozzles (25) are evenly distributed on the side of the liquid cooling pipe (21) and are all facing the direction of the saw disc. The coolant circulation assembly is composed of a liquid collecting tank (15) and a second pump (22), and is used to collect coolant spilled after spraying. The liquid collecting tank (15) is opened at the upper end of the device seat (14), and the second pump (22) is fixed to the side wall of the device seat (14). Its liquid inlet is connected to the liquid collecting tank (15) through a circulation pipe (23), and its liquid outlet is connected to the liquid storage chamber through a reflux pipe (24).

2. A sawing machine feeding auxiliary mechanism according to claim 1, characterized in that: The bottom plate (1) is fixedly provided with guide rail sliders (10) and drag chain brackets (11) on both sides thereof for being movably connected to the sawing machine body, and the upper sides of the ends of the outer plate (3) and the inner plate (4) are fixedly provided with a first wear-resistant tungsten steel sheet (8) and a second wear-resistant tungsten steel sheet (9) on their upper sides.

3. A sawing machine feeding auxiliary mechanism according to claim 1, characterized in that: The hydraulic structure comprises a first hydraulic cylinder (5), a second hydraulic cylinder (6), a positioning slide shaft (7) and an oil inlet pipe (12); the first hydraulic cylinder (5) and the second hydraulic cylinder (6) are fixed in parallel as a whole and are connected to the oil inlet pipe (12); a synchronous valve is provided on the upper part of the cylinder body; the first hydraulic cylinder (5) and the second hydraulic cylinder (6) are synchronously movably connected to the inner plate (4) and are provided with a tension spring inside; the positioning slide shaft (7) is arranged between the outer plate (3) and the inner plate (4) and is used to maintain the displacement direction of the outer plate (3) and the inner plate (4).

4. The sawing machine feeding auxiliary mechanism according to claim 1, characterized in that: A filter plate (16) is fixedly mounted on the upper end of the liquid collecting tank (15), and each of the filter plates (16) is provided with seepage holes in a linear manner for separating the coolant and workpiece debris that fall into the liquid collecting tank (15).

5. The sawing machine feeding auxiliary mechanism according to claim 1, characterized in that: The upper end of the device seat (14) is located at the notch of the liquid collecting tank (15) and is surrounded by an inflatable enclosure (26). The inflatable enclosure (26) expands in the longitudinal direction when inflated and contracts in the longitudinal direction when exhausted. A pair of sliding plates (27) are symmetrically slidably connected to the device seat (14). The pair of sliding plates (27) are fixedly connected to the outer plate (3) and the inner plate (4) via connecting rods (29), respectively, and a control structure for controlling the lifting and lowering of the inflatable enclosure (26) is installed between the pair of sliding plates (27).

6. A sawing machine feeding auxiliary mechanism according to claim 5, characterized in that: The control structure comprises a telescopic airbag (28), the two ends of the telescopic airbag (28) being respectively fixedly connected to the inner sides of a pair of sliding plates (27), and the two ends of the telescopic airbag (28) being respectively connected to the two ends of the inflatable enclosure (26) through air guide tubes (30).

7. A sawing machine feeding auxiliary mechanism according to claim 5, characterized in that: The upper end of the device seat (14) is provided with a pushing structure for extending the serpentine cooling tube (20) during operation, the pushing structure comprising a gear (32), a first rack (31) and a second rack (33), a pair of the gears (32) being symmetrically rotatably connected to the upper end of the device seat (14), the first rack (31) and the second rack (33) being both slidably connected to the upper end of the device seat (14), the first rack (31) and the second rack (33) being arranged on both sides of the gear (32) and both meshing with the gear (32), the first rack (31) being fixedly connected to the sliding plate (27), and the second rack (33) being fixedly connected to the serpentine cooling tube (20) via a bending rod (34).

8. The sawing machine feeding auxiliary mechanism according to claim 3, characterized in that: After the first hydraulic cylinder (5) and the second hydraulic cylinder (6) reach the set pressure, the first wear-resistant tungsten steel sheet (8) and the second wear-resistant tungsten steel sheet (9) leave corresponding gaps with the two sides of the saw blade, so that the saw blade and the workpiece are kept at an angle of (90) degrees during operation.

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