Cutting device for steel machining

Abstract

The cutting device for steel machining comprises a base frame and a cutting disc used for cutting rectangular hollow steel, a water tank used for bearing cooling liquid is arranged on the base frame, an annular rectangular structure used for driving the cutting disc to conduct cutting operation on the rectangular hollow steel in a rectangular track is arranged on the base frame, and the annular rectangular structure comprises a guide column. The two ends of the guide column are fixedly connected to the base frame, the cutting disc is fixedly arranged at the end, away from the rectangular block, of the transverse rod, and the special-shaped frame is provided with a fixed point assembly for driving the cutting disc to be attached to the surface of the rectangular hollow steel to determine the initial position of rectangular track movement. By means of the design, the cutting face can be matched with the section shape of the steel, the cutting accuracy and efficiency are improved, the contact area of the cutting disc and the rectangular hollow steel during cutting can be reduced, tool abrasion is reduced, and the service life of the cutting disc is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of steel cutting devices, in particular to a cutting device for steel processing. Background Art

[0002] Steel is a basic material for many industries such as construction, automobile manufacturing, aerospace, etc. The processing accuracy of steel directly affects the quality of the final product. In these fields, steel needs to be cut into specific lengths and shapes to meet different engineering requirements.

[0003] Chinese patent (Announcement No.: CN119035627A), the scheme specifically includes a workbench, on which a cutting machine is arranged; a movable seat, which is slidably connected to the workbench, and the number is set to two; an upper and lower clamping mechanism, which is arranged on the movable seat, and is used to fix the special-shaped steel along the height direction, and the upper and lower clamping mechanisms on the two movable seats are symmetrically arranged; a horizontal clamping mechanism, which is arranged between the workbench and the movable seat, and is used to drive the two movable seats to move closer or farther from each other, and lock the position of the movable seat after moving. This application has the effect of fixing the special-shaped steel when cutting the special-shaped steel, so that the steel is not easily displaced during the cutting process, improving the cutting accuracy and cutting quality, and at the same time improving the safety during the cutting process.

[0004] The cutting device in the above patent can fix the special-shaped steel when in use to ensure the stability during the steel cutting process. However, when it comes to the cutting of large-sized rectangular hollow steel, the contact area between the rotating disc knife and the steel is large during the straight cutting process by the rotating disc knife, and in order to adapt to the cross-sectional size of the steel, a rotating disc knife with a larger radius is required, which not only puts higher requirements on the strength and durability of the cutting tool, but also due to the increase in contact area, it may cause the wear of the rotating disc knife to increase, thereby shortening its service life. Therefore, a cutting device for steel processing is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a cutting device for steel processing, which has the advantage of reducing the contact area between the disc knife and the rectangular hollow steel when cutting, and solves the problem that the rotating disc knife is aggravated by the large contact area between the disc knife and the rectangular hollow steel when cutting.

[0006] To achieve the above object, the present invention provides the following technical solutions: a cutting device for steel processing, comprising a base frame and a disc cutter for cutting rectangular hollow steel, the base frame is provided with a water tank for receiving coolant, and the base frame is provided with a circular rectangular structure for driving the disc cutter to cut the rectangular hollow steel in a rectangular trajectory; The circular moment structure comprises a guide column, both ends of which are fixedly connected to a base frame, a sliding sleeve on the guide column is provided with a traverse seat, a vertical column is fixedly connected to the traverse seat, a sliding sleeve on the vertical column is provided with a moment block, the moment block is fixedly connected to a transverse rod by bolts, a disc knife is fixedly arranged on one end of the transverse rod away from the moment block, a special-shaped frame is fixedly connected to the base frame, and a fixed-point component is provided on the special-shaped frame to drive the disc knife to adhere to the surface of a rectangular hollow steel material to determine the initial position of the rectangular trajectory movement; The special-shaped frame is provided with a moment pendulum component which drives the disc cutter to move in a rectangular track in the vertical direction starting from the initial position. The disc cutter is fixedly connected with an annular tube, and the special-shaped frame is also provided with a lubricating component which sprays coolant on the disc cutter.

[0007] Preferably, the moment pendulum assembly includes a center block that rotates freely in the vertical direction, the center block rotates on a fixed axis on the special-shaped frame, a clearance column is slidably penetrated on the center block, an end of the clearance column away from the center block is fixedly connected to a mounting block, and the mounting block rotates on a fixed axis on the moment block; The outer circumferential surface of the yielding column is sleeved with a yielding spring, and the two ends of the yielding spring are respectively fixedly connected to the mounting block and the center block.

[0008] Preferably, the guide column is provided with a directional limit ring and a movable limit ring, the directional limit ring is fixedly sleeved on the guide column, the movable limit ring is slidably sleeved on the guide column, and the horizontal position of the movable limit ring is determined by the fixed point component, and the end of the vertical column away from the transverse moving seat is fixedly connected with a blocking block.

[0009] Preferably, the fixed point assembly comprises a bottom plate fixedly connected to the special-shaped frame, a rectangular seat driven by an electric push rod to freely move in the horizontal direction is provided on the bottom plate, a hollow cylinder is fixedly connected to the bottom plate, and a homonymous column is slidably penetrated on the hollow cylinder; A positioning pin is fixedly connected to the side of the rectangular seat facing the alignment column, a spiral groove for the positioning pin to slide and connect is provided on the alignment column, a crank rod is fixedly connected to the movable limit ring, and one end of the alignment column away from the hollow cylinder is fixedly rotated on the crank rod; The hollow cylinder is provided with a directional component for limiting the rotation of the isotropic column.

[0010] Preferably, the directional component includes an axial protrusion integrally formed on the isotropic column, and two groups of annular grooves for sliding connection of the axial protrusion are opened on the hollow cylinder. The hollow cylinder is also provided with a parallel groove for sliding connection of the axial protrusion, and the two ends of the parallel groove are respectively connected to a group of annular grooves.

[0011] Preferably, a spline shaft is coaxially fixed on the homonymous column, a round hole for the spline shaft to pass through is opened on the special-shaped frame, a worm is slidingly sleeved on the spline shaft, and the end of the worm is in sliding contact with the inner wall of the special-shaped frame, the worm is meshingly connected with a worm wheel, and the worm wheel is fixedly rotated on the special-shaped frame; The worm wheel is provided with a plurality of groups of pawls arranged in a circular array, a ratchet is rotated on a fixed axis on the special-shaped frame and the ratchet is coaxially fixed with the center block, the ratchet is meshedly connected with the plurality of groups of pawls, and an arc groove is opened at the position of the worm wheel corresponding to the pawl.

[0012] Preferably, the lubricating assembly includes a tooth column arranged on a special-shaped frame and reciprocating in the horizontal direction, the special-shaped frame is provided with a slot body for the tooth column to slide through, and both ends of the tooth column are provided with a group of piston assemblies, and the piston assembly includes a cavity fixedly connected to the special-shaped frame; A piston plate is coaxially fixed to the end of the tooth column, the piston plate is in sliding contact with the inner wall of the cavity, and the cavity is in gas communication with the water tank and the annular tube.

[0013] Preferably, a positioning disk is coaxially fixed on the ratchet wheel, a swing rod that can swing freely in the vertical direction is provided on the positioning disk, the middle part of the swing rod is fixedly rotated on the special-shaped frame, a positioning pin is fixedly connected to one end of the positioning disk facing the swing rod, and a positioning groove for sliding connection of the positioning pin is provided on the swing rod; One end of the swing rod away from the co-location groove is fixedly connected with a sector gear, and the sector gear is meshedly connected with the gear column.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention sets a ring-rectangular structure so that the disc knife can cut the rectangular hollow steel in a rectangular trajectory. This design can make the cutting surface match the cross-sectional shape of the steel, improve the cutting accuracy and efficiency, and reduce the contact area between the disc knife and the rectangular hollow steel when cutting, thereby reducing tool wear and extending the service life of the disc knife.

[0015] 2. The present invention sets a fixed-point component so that the disc cutter can accurately determine the cutting starting point, thereby ensuring the accuracy of the cutting process. At the same time, it can prevent the disc cutter from obstructing the loading and unloading process of the rectangular hollow steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the components where the base frame of the present invention is located; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the components where the guide column of the present invention is located; Figure 5 This is a schematic diagram of the components where the disc cutter of the present invention is located; Figure 6 This is a schematic diagram of the components where the special-shaped frame of the present invention is located; Figure 7 For the present invention Figure 6 Enlarged view of point B in the middle; Figure 8 This is a schematic diagram of the components where the isotope column of the present invention is located; Fig. 9 For the present invention Figure 8 Enlarged view of point C in the middle; Fig.10 The figure is a schematic diagram of the motion trajectory of the disc knife of the present invention when cutting a rectangular hollow steel material. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figures 1 to 10 The present invention provides a technical solution: a cutting device for steel processing, comprising a base frame 1 and a disc cutter 15 for cutting a rectangular hollow steel 2, the base frame 1 is provided with a water tank for receiving a coolant, and the base frame 1 is provided with a circular rectangular structure for driving the disc cutter 15 to cut the rectangular hollow steel 2 in a rectangular track; The circular rectangular structure comprises a guide column 3, both ends of which are fixedly connected to a base frame 1, a traverse seat 6 is slidably sleeved on the guide column 3, a vertical column 7 is fixedly connected to the traverse seat 6, a rectangular block 13 is slidably sleeved on the vertical column 7, the rectangular block 13 is fixedly connected to a transverse rod 14 by bolts, a disc knife 15 is fixedly arranged on one end of the transverse rod 14 away from the rectangular block 13, a special-shaped frame 11 is fixedly connected to the base frame 1, and a fixed-point component is provided on the special-shaped frame 11 to drive the disc knife 15 to adhere to the surface of the rectangular hollow steel material 2 to determine the initial position of the rectangular trajectory movement; The special-shaped frame 11 is provided with a moment pendulum assembly for driving the disc cutter 15 to move in a rectangular trajectory in the vertical direction starting from the initial position. The disc cutter 15 is fixedly connected with an annular tube 38, and the special-shaped frame 11 is also provided with a lubricating assembly for spraying coolant on the disc cutter 15.

[0019] like Figure 1 , Figure 2 , Figure 5 and Fig.10As shown, when the rectangular hollow steel 2 is cut, the rectangular hollow steel 2 is fixed by an external clamping device, and the cutting length of the rectangular hollow steel 2 is determined before fixing, so that the disc knife 15 corresponds to the set cutting line, and the disc knife 15 is first driven to move a certain distance in the horizontal direction through the fixed point component, and then the rotating disc knife 15 partially cuts one side of the rectangular hollow steel 2, thereby setting the initial position of the rectangular motion trajectory of the disc knife 15.

[0020] At the same time, driven by the pendulum assembly, the moment block 13 can be driven to move in a rectangular trajectory in the vertical direction, wherein the moment block 13 is fixedly connected to the disc knife 15 through the transverse rod 14, and then the rectangular hollow steel 2 is cut by the freely rotating disc knife 15, wherein the movement trajectory of the disc knife 15 is adapted to the cross-sectional shape of the rectangular hollow steel 2 to ensure the integrity of the cutting surface.

[0021] In the actual cutting process, in order to ensure that the position of the rectangular hollow steel 2 before cutting will not be hindered by the disc knife 15, after the rectangular hollow steel 2 is fixed, there is a certain distance between the disc knife 15 and the surface of the rectangular hollow steel 2, such as Fig.10 As shown, after determining the cutting position of the rectangular hollow steel 2, the horizontal distance between the disc knife 15 and the rectangular hollow steel 2 can be changed under the drive of the fixed point component, so that the disc knife 15 rotating at a high speed is close to the rectangular hollow steel 2, and the partial cutting process of the rectangular hollow steel 2 is completed. The subsequent disc knife 15 can move in a rectangular trajectory with the initial position as the starting point, and cooperate with the high-speed rotating disc knife 15 to realize the cutting process of the rectangular hollow steel 2.

[0022] During the cutting process of the rectangular hollow steel 2, the coolant in the water tank can be sprayed onto the disc cutter 15 under the drive of the lubricating component. The heat generated by the cutting will cause the rectangular hollow steel 2 and the disc cutter 15 to be in a high temperature state, which may cause the disc cutter 15 to wear faster and the rectangular hollow steel 2 to thermally deform, affecting the processing accuracy and tool durability. The coolant is then used to reduce the friction between the blade and the chips and between the disc cutter 15 and the cutting surface, thereby forming a lubricating film, thereby reducing the chip force, reducing the wear of the disc cutter 15, and effectively reducing the cutting temperature and thermal deformation.

[0023] At the same time, by driving the disc cutter 15 to perform a rectangular movement that matches the cross-sectional size of the rectangular hollow steel 2, compared to the straight cutting process, when targeting a larger-sized rectangular hollow steel 2, the contact area between the disc cutter 15 and the cutting surface of the rectangular hollow steel 2 can be significantly reduced. Therefore, while ensuring that the cutting surface is flat, there is no need to use a disc cutter 15 with a larger diameter. The friction can be reduced by reducing the contact area between the rectangular hollow steel 2 and the disc cutter 15, thereby reducing the cutting force and heat generation, which helps to reduce thermal deformation of the material, improve cutting accuracy, and extend the service life of the disc cutter 15.

[0024] In one of the more preferred embodiments, the moment pendulum assembly includes a center block 9 that rotates freely in the vertical direction, the center block 9 rotates on a fixed axis on a special-shaped frame 11, a yielding column 10 is slidably penetrated on the center block 9, and the end of the yielding column 10 away from the center block 9 is fixedly connected to a mounting block, and the mounting block rotates on a fixed axis on a moment block 13; The outer circumferential surface of the yielding column 10 is sleeved with a yielding spring 12, and the two ends of the yielding spring 12 are respectively fixedly connected to the mounting block and the center block 9.

[0025] The guide column 3 is provided with a directional limit ring 4 and a movable limit ring 5. The directional limit ring 4 is fixedly sleeved on the guide column 3, and the movable limit ring 5 is slidably sleeved on the guide column 3. The horizontal position of the movable limit ring 5 is determined by a fixed point component, and a blocking block 8 is fixedly connected to one end of the vertical column 7 away from the traverse seat 6.

[0026] like Figure 1 , Figure 2 , Figure 4 and Fig.10 As shown, in the initial state, the moment block 13 and the center block 9 are at the same horizontal height, at this time, the giving column 10 is in a horizontal state and is parallel to the guide column 3, and the movable limit ring 5 is driven to slide on the guide column 3 through the fixed point component, wherein the movable limit ring 5 is in conflict with the traverse seat 6, and the movable limit ring 5 pushes the traverse seat 6 to move horizontally, thereby driving the vertical column 7 and the moment block 13 to move in the horizontal direction, so as to change the horizontal position of the traverse rod 14 and the disc knife 15 thereon through the moment block 13. In this process, the horizontal movement process of the disc knife 15 can approach one side of the rectangular hollow steel 2 and realize the cutting process on it.

[0027] At the same time, when the center block 9 rotates in the vertical direction, the position of the mounting block can be changed by the give-way column 10 mounted thereon, and the mounting block rotates on the moment block 13 on a fixed axis, and the horizontal position of the moment block 13 is limited by the position of the vertical column 7, and the height of the moment block 13 is limited by the direction of the give-way column 10.

[0028] Specifically, when the center block 9 is rotating, the moment block 13 first moves upward at the vertical column 7, and when the moment block 13 conflicts with the traverse seat 6, it cannot continue to move upward, and then with the subsequent continuous rotation of the center block 9, the orientation of the allowance column 10 changes, and then the traverse seat 6 is driven to slide on the guide column 3 through the moment block 13, the vertical column 7 and the moment block 13, and when the guide column 3 slides, the horizontal position of the moment block 13 is driven to change synchronously, and when the traverse seat 6 conflicts with the directional limit ring 4, it is at the terminal position on one side of the horizontal stroke.

[0029] As the center block 9 continues to rotate, the direction of the yield column 10 continues to change, driving the moment block 13 to slide on the vertical column 7 until the moment block 13 conflicts with the blocking block 8 and cannot continue to descend. Subsequently, as the direction of the yield column 10 changes, the traverse seat 6 is driven to move horizontally to the initial position again.

[0030] Among them, the disc knife 15 is set on the moment block 13 through the transverse rod 14, and then under the drive of the moment pendulum assembly, it can drive the disc knife 15 and the moment block 13 to rotate synchronously with a rectangular trajectory, and the rectangular motion trajectory is adapted to the cross-sectional size and wall thickness of the rectangular hollow steel 2, thereby completing the cutting process of the rectangular hollow steel 2. It should be noted that, when the traverse seat 6 contacts the movable limit ring 5, its moment block 13 and the disc knife 15 will be at one end of the horizontal stroke. Therefore, by limiting the horizontal position of the movable limit ring 5, the movable limit ring 5 is driven to slide on the guide column 3 through the fixed point assembly in advance, so as to determine the starting position of the disc knife 15 moving in a rectangular trajectory.

[0031] On the basis of the embodiment of the moment pendulum assembly, the fixed point assembly comprises a bottom plate 16 fixedly connected to the special-shaped frame 11, a rectangular seat 17 driven by an electric push rod and freely moving in the horizontal direction is provided on the bottom plate 16, a hollow cylinder 22 is fixedly connected to the bottom plate 16, and a homonymous column 19 is slidably penetrated on the hollow cylinder 22; The rectangular seat 17 is fixedly connected with a positioning pin 18 on one side facing the alignment column 19. The alignment column 19 is provided with a spiral groove 21 for the positioning pin 18 to slide and connect. A turning rod 20 is fixedly connected to the movable limiting ring 5. One end of the alignment column 19 away from the hollow cylinder 22 is fixedly rotated on the turning rod 20. The hollow cylinder 22 is provided with an orientation component for limiting the rotation of the alignment column 19 .

[0032] The directional assembly includes an integrally formed shaft protrusion 191 on the isotropic column 19, and two groups of annular grooves 24 are provided on the hollow cylinder 22 for sliding connection of the shaft protrusion 191. The hollow cylinder 22 is also provided with a parallel groove 25 for sliding connection of the shaft protrusion 191, and the two ends of the parallel groove 25 are respectively connected to a group of annular grooves 24.

[0033] A spline shaft 23 is coaxially fixed on the alignment column 19, a circular hole for the spline shaft 23 to pass through is opened on the special-shaped frame 11, a worm 26 is slidably sleeved on the spline shaft 23, and the end of the worm 26 is in sliding contact with the inner wall of the special-shaped frame 11, and the worm 26 is meshedly connected with a worm wheel 27, and the worm wheel 27 rotates on the special-shaped frame 11 with a fixed axis; The worm wheel 27 is provided with a plurality of groups of pawls 29 arranged in a circular array, a ratchet 28 is fixedly rotated on the special-shaped frame 11 and the ratchet 28 is coaxially fixed with the center block 9, the ratchet 28 is meshedly connected with the plurality of groups of pawls 29, and an arc groove is opened on the worm wheel 27 corresponding to the position of the pawl 29.

[0034] like Figure 1 , Figure 6 , Figure 7 , Figure 8 and Fig. 9 As shown, the electric push rod drives the locating pin 18 to move horizontally on the rectangular seat 17, wherein, in the initial state, the shaft protrusion 191 is located at the junction of a set of annular grooves 24 and parallel grooves 25. When the locating pin 18 moves toward the hollow cylinder 22, due to the friction contact between the locating pin 18 and the spiral groove 21, the isotropic column 19 is driven to move horizontally first, wherein the shaft protrusion 191 slides on the parallel groove 25 until it moves to the position where another set of annular grooves 24 and the parallel grooves 25 are connected.

[0035] At the same time, the isotropic column 19 rotates on the turning rod 20, and the turning rod 20 is fixedly connected to the movable limit ring 5, and then the movable limit ring 5 is driven to slide on the guide column 3 through the horizontal movement process of the isotropic column 19, so that the moment block 13 is driven to drive the disc knife 15 to approach one side of the rectangular hollow steel 2 through the horizontal movement process of the movable limit ring 5, and complete the partial cutting process on this side, so as to achieve the purpose of determining the initial position of the rectangular trajectory movement.

[0036] As the positioning pin 18 continues to move toward the side of the hollow cylinder 22, the isotropic column 19 cannot continue to move horizontally due to the restriction of the annular groove 24. At this time, the positioning pin 18 can only slide on the spiral groove 21, and then the horizontal movement of the positioning pin 18 can drive the isotropic column 19 to rotate in the vertical direction.

[0037] At the same time, a spline shaft 23 is coaxially fixed on the isotropic column 19, and a worm 26 is slidingly sleeved on the spline shaft 23. The horizontal position of the worm 26 can be limited by the special-shaped frame 11, and when the spline shaft 23 rotates, it can ensure that the worm 26 rotates synchronously with the spline shaft 23. When the worm 26 rotates, it can drive the worm wheel 27 meshing with it to rotate in the vertical direction. At this time, the pawl 29 and the ratchet 28 are in a meshing state, and then the rotation process of the worm wheel 27 can drive the ratchet 28 to rotate synchronously, thereby driving the center block 9 coaxially fixed with the ratchet 28 to rotate synchronously, so as to drive the moment pendulum assembly to operate, and then the disc knife 15 moves in a rectangular trajectory and completes the cutting process of the rectangular hollow steel 2.

[0038] It should be noted that when the rectangular seat 17 drives the positioning pin 18 away from the hollow cylinder 22, it first drives the shaft protrusion 191 to slide on the parallel groove 25 to change the horizontal position of the positioning pin 18 and the turning rod 20, and then under the action of the elastic potential energy of the yield spring 12, the traverse seat 6 always contacts the active limit ring 5 when the active limit ring 5 moves horizontally, thereby changing the horizontal position of the moment block 13, the horizontal rod 14 and the disc knife 15, so that the disc knife 15 can be driven away from the rectangular hollow steel 2 after the cutting operation contacts, so as to avoid the existence of the disc knife 15 interfering with the subsequent determination process of the cutting line of the rectangular hollow steel 2. When the rectangular seat 17 gradually moves away from the hollow cylinder 22, the spline shaft 23 can rotate in the opposite direction, but because the pawl 29 is not engaged with the ratchet 28, the center block 9 will not rotate with the worm wheel 27, so when the rectangular seat 17 returns to the initial position, the center block 9 will not be driven to rotate.

[0039] Based on the fixed point component embodiment, the lubricating component includes a tooth column 35 arranged on the special-shaped frame 11 and reciprocating in the horizontal direction, and the special-shaped frame 11 is provided with a groove body for the tooth column 35 to slide through, and a group of piston assemblies are provided at both ends of the tooth column 35, and the piston assembly includes a cavity 37 fixedly connected to the special-shaped frame 11; A piston plate 36 is coaxially fixed to the end of the tooth column 35 , and the piston plate 36 is in sliding contact with the inner wall of the cavity 37 , and the cavity 37 is gas-connected with the water tank and the annular tube 38 .

[0040] The ratchet 28 is coaxially fixed with a positioning disk 30, and a swing rod 32 is provided on the positioning disk 30, which can swing freely in the vertical direction. The middle part of the swing rod 32 is fixedly rotated on the special-shaped frame 11, and a positioning pin 31 is fixedly connected to one end of the positioning disk 30 facing the swing rod 32, and a positioning groove 33 for sliding connection of the positioning pin 31 is provided on the swing rod 32; One end of the swing rod 32 away from the co-location groove 33 is fixedly connected to a sector gear 34 , and the sector gear 34 is meshingly connected to a gear column 35 .

[0041] like Figure 2 , Figure 3 and Figure 5 As shown, when the ratchet 28 drives the center block 9 to rotate in the vertical direction, it can drive the coaxial isotropic disk 30 to rotate synchronously therewith. The isotropic disk 30 is fixedly provided with an isotropic pin 31 which is slidably connected to the rocker arm 32 through the isotropic groove 33, and the middle part of the rocker arm 32 is fixedly rotated on the special-shaped frame 11, and the end of the rocker arm 32 is fixedly provided with a fan gear 34 which is meshed with the tooth column 35. Therefore, when the isotropic disk 30 rotates, it can drive the rocker arm 32 to swing back and forth in the vertical direction to drive the tooth column 35 to reciprocate in the horizontal direction through the fan gear 34 at the end.

[0042] At the same time, a group of piston assemblies are respectively provided at both ends of the sector gear 34. When the sector gear 34 moves in the horizontal direction, the coolant in the cavity 37 of one group of piston assemblies can be driven to enter the annular tube 38 and sprayed onto the disc cutter 15, and the cavity 37 in the other group of piston assemblies can be synchronously driven to replenish the coolant into itself through the water tank. Therefore, no matter how the movement direction of the tooth column 35 changes, it can be ensured that the annular tube 38 can spray coolant in the direction of the disc cutter 15, so as to reduce the friction between the disc cutter 15 and the cutting surface when cutting the rectangular hollow steel 2, thereby forming a lubricating film, thereby reducing the chip force, reducing the wear of the disc cutter 15, and can effectively reduce the cutting temperature, which helps to reduce the thermal deformation of the material, improve the cutting accuracy, and extend the service life of the disc cutter 15.

[0043] It should be noted that the cavity 37 is connected between the liquid inlet and the water tank, and is connected between the liquid outlet and the annular tube 38. The liquid inlet and outlet ends of the cavity 37 are respectively provided with one-way valves with opposite valve port directions to limit the flow direction of the coolant when the gear column 35 moves horizontally, so that the coolant can only enter the cavity 37 through the water tank, and be sprayed to the disc cutter 15 through the cavity 37 and the annular tube 38.

Claims

1. A cutting device for steel processing, comprising a base frame (1) and a disc cutter (15) for cutting a rectangular hollow steel (2), wherein a water tank for receiving a coolant is provided on the base frame (1), and the device is characterized in that: The base frame (1) is provided with a circular rectangular structure for driving the disc knife (15) to cut the rectangular hollow steel material (2) along a rectangular trajectory; The circular rectangular structure comprises a guide column (3), both ends of which are fixedly connected to a base frame (1), a sliding sleeve on the guide column (3) is provided with a traverse seat (6), a vertical column (7) is fixedly connected to the traverse seat (6), a sliding sleeve on the vertical column (7) is provided with a rectangular block (13), the rectangular block (13) is fixedly connected to a transverse rod (14) by bolts, a disc knife (15) is fixedly arranged on one end of the transverse rod (14) away from the rectangular block (13), and a special-shaped frame (11) is fixedly connected to the base frame (1), and a fixed-point component is provided on the special-shaped frame (11) for driving the disc knife (15) to adhere to the surface of a rectangular hollow steel material (2) to determine the initial position of the rectangular trajectory movement.

2. A cutting device for steel processing according to claim 1, characterized in that: The special-shaped frame (11) is provided with a moment pendulum assembly for driving the disc cutter (15) to move in a rectangular track in a vertical direction with an initial position as a starting point, an annular tube (38) is fixedly connected to the disc cutter (15), and the special-shaped frame (11) is also provided with a lubricating assembly for spraying cooling liquid on the disc cutter (15).

3. A cutting device for steel processing according to claim 2, characterized in that: The moment pendulum assembly comprises a center block (9) which is freely rotatable in a vertical direction, the center block (9) being fixedly rotatable on a special-shaped frame (11), a clearance column (10) being slidably penetrated on the center block (9), an end of the clearance column (10) away from the center block (9) being fixedly connected to a mounting block, and the mounting block being fixedly rotatable on a moment block (13).

4. A cutting device for steel processing according to claim 3, characterized in that: The outer circumferential surface of the yielding column (10) is sleeved with a yielding spring (12), and the two ends of the yielding spring (12) are respectively fixedly connected to the mounting block and the center block (9); The guide column (3) is provided with a directional limit ring (4) and a movable limit ring (5), the directional limit ring (4) is fixedly sleeved on the guide column (3), the movable limit ring (5) is slidably sleeved on the guide column (3), and the horizontal position of the movable limit ring (5) is determined by a fixed point component, and a stop block (8) is fixedly connected to one end of the vertical column (7) away from the traverse seat (6); The fixed-point assembly comprises a base plate (16) fixedly connected to the special-shaped frame (11), a rectangular seat (17) driven by an electric push rod to freely move in the horizontal direction is provided on the base plate (16), a hollow cylinder (22) is fixedly connected to the base plate (16), and a homonymous column (19) is slidably penetrated through the hollow cylinder (22); A positioning pin (18) is fixedly connected to one side of the rectangular seat (17) facing the alignment column (19); a spiral groove (21) is provided on the alignment column (19) for the positioning pin (18) to be slidably connected; a turning rod (20) is fixedly connected to the movable limiting ring (5); and one end of the alignment column (19) away from the hollow cylinder (22) is fixedly rotated on the turning rod (20); The hollow cylinder (22) is provided with a directional component for limiting the rotation of the alignment column (19); The orientation component comprises an integrally formed shaft protrusion (191) on the isotropic column (19), two groups of annular grooves (24) for sliding connection of the shaft protrusion (191) are formed on the hollow cylinder (22), and a parallel groove (25) for sliding connection of the shaft protrusion (191) is also formed on the hollow cylinder (22), and the two ends of the parallel groove (25) are respectively connected to a group of annular grooves (24); A spline shaft (23) is coaxially fixed on the isotropic column (19), a circular hole for the spline shaft (23) to pass through is opened on the special-shaped frame (11), a worm (26) is slidingly sleeved on the spline shaft (23), and the end of the worm (26) is in sliding contact with the inner wall of the special-shaped frame (11), the worm (26) is meshingly connected with a worm wheel (27), and the worm wheel (27) is fixedly rotated on the special-shaped frame (11).

5. A cutting device for steel processing according to claim 4, characterized in that: The worm wheel (27) is provided with a plurality of groups of ratchets (29) arranged in a ring array, and a ratchet wheel (28) is provided on the special-shaped frame (11) to rotate on a fixed axis.

6. A cutting device for steel processing according to claim 5, characterized in that: The ratchet (28) and the center block (9) are coaxially fixed, the ratchet (28) and the plurality of groups of pawls (29) are meshedly connected, and the worm wheel (27) is provided with an arc groove at a position corresponding to the pawl (29).

7. A cutting device for steel processing according to claim 6, characterized in that: The lubricating assembly comprises a tooth column (35) arranged on the special-shaped frame (11) and reciprocating in the horizontal direction, the special-shaped frame (11) is provided with a groove body for the tooth column (35) to slide through, and a group of piston assemblies are provided at both ends of the tooth column (35), and the piston assembly comprises a cavity (37) fixedly connected to the special-shaped frame (11); A piston plate (36) is coaxially fixed to the end of the tooth column (35), the piston plate (36) is in sliding contact with the inner wall of the cavity tube (37), and the cavity tube (37) is in gas communication with the water tank and the annular tube (38).

8. A cutting device for steel material processing according to claim 7, characterized in that: A positioning disk (30) is coaxially fixed on the ratchet wheel (28), a swing rod (32) is provided on the positioning disk (30) and is free to swing in the vertical direction, a middle part of the swing rod (32) is fixedly rotated on the special-shaped frame (11), a positioning pin (31) is fixedly connected to one end of the positioning disk (30) facing the swing rod (32), and a positioning groove (33) for sliding connection of the positioning pin (31) is provided on the swing rod (32); One end of the swing rod (32) away from the co-location groove (33) is fixedly connected to a sector gear (34), and the sector gear (34) is meshingly connected to the tooth column (35).

Images