Cutting device for steel structure machining

Abstract

The invention belongs to the technical field of steel structure machining, and particularly relates to a cutting device for steel structure machining, which comprises a cutting table, a rotary cutting disc and a supporting mechanism for supporting and driving the rotary cutting disc are arranged above the cutting table, and the supporting mechanism comprises a side plate and a top plate arranged above the side plate; and the feeding mechanism is used for driving the rotary cutting disc to intermittently move in the vertical direction, cutting machining of the steel structure is conducted in a segmented mode, and the feeding mechanism comprises a lifting plate fixedly connected to the upper end of the side plate. By arranging the feeding mechanism, the rotary cutting disc intermittently moves downwards, cutting machining of a steel structure is carried out in a segmented mode, heat generated in the cutting process is effectively reduced, by arranging the feeding amount decreasing assembly, the more deep the rotary cutting disc enters the steel structure, the feeding amount of the rotary cutting disc is reduced, and the machining efficiency is improved. And the cutting force required to be borne by the cutter during cutting can be effectively reduced.

Description

Technical Field

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

[0002] Steel structure processing refers to the process of processing and manufacturing steel materials to produce steel structures for various purposes such as buildings, bridges, industrial equipment, etc. This process usually includes a variety of processing techniques, such as cutting, welding, forming, surface treatment, etc. In the steel structure processing process, the cutting device is a very important part. Its main functions include: cutting materials, improving processing accuracy and achieving complex shapes, etc.

[0003] For example, a cutting device for steel structure processing disclosed in the patent document with Chinese publication number CN116352167B includes a workbench and a fixed block, which can push the cut steel structure out of the limit groove through the outlet, and cut the steel structure quickly and continuously. However, the above-mentioned cutting device still has the following technical problems when cutting the steel structure:

[0004] 1. The cutting process of the steel structure by the rotating disc cutter is often carried out continuously, which easily generates more cutting heat during the cutting process, and then causes the rotating disc cutter and the steel structure to be locally overheated, deformed and burned, reducing the service life of the tool and the cutting effect of the steel structure;

[0005] 2. During the cutting process, as the cutting depth of the rotary disc cutter increases, the area of ​​the cutter cutting into the material increases, and the cutting force increases accordingly. This means that the cutter needs to withstand greater cutting force and the cutting heat generated will also increase, resulting in faster tool wear and even the risk of deformation and breakage, reducing the service life of the rotary disc cutter and the cutting efficiency of the steel structure. Summary of the invention

[0006] The purpose of the present invention is to address the problems raised in the above-mentioned background technology and to provide a cutting device for steel structure processing that can perform the cutting processing of steel structures in sections, effectively reduce the heat generated during the cutting process, and at the same time make the feed amount smaller as the rotating disc cutter goes deeper into the steel structure, thereby reducing the cutting force that the tool needs to bear during cutting.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A cutting device for steel structure processing, comprising:

[0009] A cutting table, above which a rotating disc cutter and a supporting mechanism for supporting and driving the rotating disc cutter are arranged, wherein the supporting mechanism comprises a side plate and a top plate arranged above the side plate;

[0010] A feeding mechanism is used to drive the rotating disc cutter to intermittently move in the vertical direction to perform cutting processing of the steel structure in sections. The feeding mechanism includes a lifting plate fixedly connected to the upper end of the side plate, and guide wheels are hinged on both sides of the lifting plate through a hinge seat. Two extrusion assemblies are symmetrically arranged under the top plate. The two extrusion assemblies are used to squeeze and push the guide wheels on both sides of the lifting plate to achieve intermittent downward feeding of the lifting plate and the rotating disc cutter. Each of the extrusion assemblies includes a guide inclined plate that contacts the guide wheel.

[0011] Two symmetrically arranged feed reduction components are used to adjust the angles of the two guide ramps respectively, so as to achieve the purpose of reducing the feed of the rotary disc cutter correspondingly when the cutting depth increases.

[0012] Preferably, the supporting mechanism also includes a U-shaped supporting plate fixedly connected to the upper end of the cutting table, and the lower end of the U-shaped supporting plate is fixedly connected to two electric telescopic rods for driving the top plate. The rotating disc knife is rotatably installed on the side wall of the side plate, and a driving motor for driving the rotating disc knife is provided on the side wall of the side plate away from the rotating disc knife. A guide gear is installed on the side wall of the side plate through a one-way bearing, and a guide rack meshing with the guide gear is provided above the cutting table in the vertical direction, and a first spring is provided between the lifting plate and the cutting table.

[0013] Preferably, the guide rack is slidably connected to the upper end of the cutting table.

[0014] Preferably, each of the extrusion assemblies includes a mounting plate fixedly connected to the lower end of the top plate, an electric push plate is fixedly connected to the side wall of the mounting plate, the guide inclined plate is rotatably mounted on the output end of the electric push plate, an L-shaped rod is fixedly connected to the output end of the electric push plate, an extrusion block is fixedly connected to one end of the L-shaped rod close to the mounting plate, a first touch-pressure switch in contact with the extrusion block is provided on the side wall of the mounting plate, a second touch-pressure switch in contact with the guide wheel is provided on the lower wall of the guide inclined plate, the first touch-pressure switch and the second touch-pressure switch respectively control the opening and closing of the two electric telescopic rods.

[0015] Preferably, each of the feed amount decreasing components includes a rotating rod rotatably connected to the top of the electric push plate, the rotating rod is fixedly connected to a driving gear and a driven gear, the upper end of the cutting table is installed with a fixed rack through a supporting rod, the driving gear and the fixed rack are meshed with each other, the output end of the electric push plate is fixedly connected to a liquid storage box, the internal sealing and sliding connection of the liquid storage box is a piston block, the upper end of the piston block is fixedly connected to a moving rack meshed with the driven gear, a hydraulic telescopic rod is fixedly connected to the side wall of the liquid storage box, the interior of the hydraulic telescopic rod is connected to the interior of the liquid storage box, and a liquid storage space filled with hydraulic oil is formed between the hydraulic telescopic rod and the liquid storage box, the telescopic end of the hydraulic telescopic rod is fixedly connected to an adjusting rack, and the axis of the guide inclined plate is fixedly connected to an adjusting gear meshed with the adjusting rack.

[0016] Preferably, the lifting plate is provided with a speed regulating component controlled by a feed amount decreasing component, which is used to adjust the speed of the rotating disc cutter according to the cutting depth. The speed regulating component includes a liquid storage tank fixedly connected to the upper end of the lifting plate, and two piston plates are symmetrically and sealed and slidably arranged inside the liquid storage tank. Push rods are fixedly connected to the two piston plates, and the parts of the two push rods extending outside the liquid storage tank are fixedly connected to push plates that are in conflict with the guide inclined plates at corresponding positions. A plurality of second springs are arranged between each push plate and the outer wall of the liquid storage tank. The lifting plate and the side plate are provided with an adjustment channel at a position directly below the liquid storage tank, and an adjustment block is sealed and slidably connected inside the adjustment channel. A sliding rheostat is arranged on the side plate, and the sliding rheostat includes a side groove opened on the side plate, a resistance rod is fixedly connected in the side groove, and a sliding plate is slidably connected in the side groove along the vertical direction. A plurality of connecting rods are fixedly connected between the sliding plate and the adjustment block, and the drive motor is connected in series with a power supply device arranged inside the side plate through the resistance rod and the sliding plate.

[0017] Preferably, it also includes a cleaning assembly for cleaning the rotating disc cutter while the rotating disc cutter is performing cutting work, the cleaning assembly including an incomplete gear fixedly connected to the axis of the rotating disc cutter, a cleaning rack meshing with the incomplete gear is slidably connected to the side wall of the side plate in a vertical direction, a third spring is provided between the cleaning rack and the lifting plate, a lifting rod is fixedly connected to the cleaning rack via an extension rod, two rocker arms are rotatably mounted on the lower end of the lifting rod, a pin shaft is rotatably mounted on the bottom end of each rocker arm, two arc-shaped pin grooves are symmetrically fixedly mounted on the side wall of the side plate, the two pin shafts are respectively slidably connected to the two arc-shaped pin grooves, and a Y-shaped cleaning block is fixedly connected to the end of each pin shaft away from the arc-shaped pin groove.

[0018] Preferably, each of the pin shafts is fixedly connected to a limiting block, and the inner bottom wall of each of the arc-shaped pin grooves is provided with a limiting groove that matches the limiting block.

[0019] Compared with the existing technology, the advantages of the cutting device for steel structure processing are:

[0020] 1. The present invention provides a feeding mechanism. During cutting processing, the rotary disc cutter is driven to rotate by a driving motor, and the two guide inclined plates are driven to move horizontally by an electric push plate, so that the lifting plate drives the rotary disc cutter to move downward and contact the steel structure for cutting processing, and then the two guide inclined plates are moved away from each other, and the lifting plate and the rotary disc cutter are maintained in the original positions. When the two guide inclined plates are moved away from each other to the farthest ends, the electric telescopic rod drives the top plate to move downward until the two guide inclined plates contact the guide wheels, so that the electric push plate drives the guide inclined plates to move closer to each other again and continues to push the rotary disc cutter downward, so that the rotary disc cutter is intermittently displaced downward, and the cutting processing of the steel structure is carried out in sections, which effectively reduces the heat generated during the cutting process, avoids local overheating of the rotary disc cutter and the steel structure, and prevents deformation or burning of the tool and the workpiece.

[0021] 2. The present invention sets a feed decreasing component. When the top plate moves from top to bottom, the driving gear moves along the fixed rack, and the piston block is driven to move downward in the liquid storage box through the driven gear and the moving rack. The hydraulic telescopic rod is extended to drive the adjustment rack to move. The angle of the guide inclined plate is adjusted by adjusting the gear. The deeper the rotary disc cutter penetrates into the steel structure, the smaller the feed of the rotary disc cutter is. This can effectively reduce the cutting force that the cutter needs to bear during cutting, thereby reducing the wear and damage risk of the cutter, and improving the service life of the rotary disc cutter and the cutting efficiency of the steel structure.

[0022] 3. The present invention sets a speed adjustment component. When the depth of cutting the steel structure is greater, the guide inclined plate pushes the two piston plates closer to each other to a greater extent, thereby allowing more hydraulic oil in the liquid storage tank to enter the adjustment channel, and the sliding plate is driven by the adjustment block to slide along the resistance rod, so that the resistance of the circuit where the drive motor is located is greater and the current is smaller, so that the speed of the rotating disc cutter is smaller when the depth of cutting the steel structure is greater, further reducing the cutting force borne by the rotating disc cutter and alleviating the tool load.

[0023] 4. The present invention provides a cleaning component. When the rotary disc cutter rotates to cut the steel structure, the cleaning rack can be driven by the incomplete gear to perform reciprocating vertical displacement, and the lifting rod can be driven to perform reciprocating vertical displacement, so that the two pins can move back and forth periodically inside the two arc-shaped pin grooves. Since the pin is provided with a Y-shaped cleaning block that fits the rotary disc cutter, the rotary disc cutter can be cleaned reciprocatingly, thereby preventing debris from sticking to the rotary disc cutter due to excessive temperature during cutting, thereby improving the cutting effect on the steel structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1It is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 It is a partial structural schematic diagram of the support mechanism, the feeding mechanism and the extrusion assembly in the present invention;

[0026] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0027] Figure 4 yes Figure 2 The enlarged view of point B in the middle;

[0028] Figure 5 It is a partial structural schematic diagram of the feed amount decreasing component in the present invention;

[0029] Figure 6 yes Figure 5 Enlarged view of point C in the middle;

[0030] Figure 7 It is a partial structural schematic diagram of the speed regulating component in the present invention;

[0031] Figure 8 yes Figure 7 The enlarged view of point D in the middle;

[0032] Fig. 9 It is a partial structural schematic diagram of the cleaning component in the present invention;

[0033] Fig.10 yes Fig. 9 Enlarged view of point E in the middle;

[0034] Fig.11 It is a schematic diagram of the local structure of the embedding block in the present invention.

[0035] In the figure: 1. cutting table; 11. rotating disc knife; 2. supporting mechanism; 21. side plate; 22. top plate; 23. U-shaped supporting plate; 24. electric telescopic rod; 25. driving motor; 26. guide gear; 27. guide rack; 28. first spring; 3. feeding mechanism; 31. lifting plate; 32. guide wheel; 4. extrusion assembly; 41. guide inclined plate; 42. mounting plate; 43. electric push plate; 44. L-shaped rod; 45. extrusion block; 46. first touch pressure switch; 47. second touch pressure switch; 5. feed amount decreasing assembly; 51. rotating rod; 52. driving gear; 53. driven gear; 54. fixed rack; 55. liquid storage Box; 56, piston block; 57, moving rack; 58, hydraulic telescopic rod; 59, adjusting rack; 510, adjusting gear; 6, speed adjustment assembly; 61, liquid storage tank; 62, piston plate; 63, push rod; 64, push plate; 65, second spring; 66, adjustment channel; 67, adjustment block; 68, side groove; 69, resistance rod; 610, slide; 611, connecting rod; 7, cleaning assembly; 71, incomplete gear; 72, cleaning rack; 73, third spring; 74, lifting rod; 75, rocker arm; 76, pin shaft; 77, arc pin groove; 78, Y-shaped cleaning block; 79, limit groove; 8, embedded block; 81, U-shaped embedded groove. DETAILED DESCRIPTION

[0036] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0037] Example:

[0038] Reference Figures 1 to 4 , a cutting device for steel structure processing, comprising:

[0039] A cutting table 1, above which a rotating disc cutter 11 and a supporting mechanism 2 for supporting and driving the rotating disc cutter 11 are arranged, wherein the supporting mechanism 2 comprises a side plate 21 and a top plate 22 arranged above the side plate 21;

[0040] Specifically, a clamping assembly is also provided at the upper end of the cutting table 1, and the clamping assembly includes a clamping plate and a hydraulic cylinder for driving the clamping plate. This is an existing mature technology, so it is not described in detail in this application.

[0041] The support mechanism 2 also includes a U-shaped support plate 23 fixedly connected to the upper end of the cutting table 1, and two electric telescopic rods 24 for driving the top plate 22 are fixedly connected to the lower end of the U-shaped support plate 23. The rotating disc cutter 11 is rotatably installed on the side wall of the side plate 21, and a driving motor 25 for driving the rotating disc cutter 11 is provided on the side wall of the side plate 21 away from the rotating disc cutter 11. A guide gear 26 is installed on the side wall of the side plate 21 through a one-way bearing. Specifically, a rotating shaft is rotatably installed on the side wall of the side plate 21, and the guide gear 26 is installed on the rotating shaft through a one-way bearing. A guide rack 27 meshing with the guide gear 26 is provided above the cutting table 1 in the vertical direction. Specifically, the guide rack 27 is slidably connected to the upper end of the cutting table 1 through a support rod, and a first spring 28 is provided between the lifting plate 31 and the cutting table 1.

[0042] Specifically, the guide rack 27 is slidably connected to the upper end of the cutting table 1. After the cutting of a steel structure is completed, the guide rack 27 can be driven to be misaligned with the guide gear 26, so that the guide rack 27 no longer limits the guide gear 26, so that the lifting plate 31 and the rotating disc knife 11 can be moved up and reset under the elastic force of the first spring 28. At this time, the electric telescopic rod 24 is controlled to reset the top plate 22, and the next steel structure can be cut, thereby ensuring the continuous cutting of the steel structure and the cutting efficiency of the steel structure.

[0043] The feeding mechanism 3 is used to drive the rotating disc cutter 11 to intermittently move in the vertical direction to perform the cutting process of the steel structure in sections. The feeding mechanism 3 includes a lifting plate 31 fixedly connected to the upper end of the side plate 21. Both sides of the lifting plate 31 are hinged with guide wheels 32 through hinge seats. Two extrusion assemblies 4 are symmetrically provided below the top plate 22. The two extrusion assemblies 4 are used to squeeze and push the guide wheels 32 on both sides of the lifting plate 31 to achieve intermittent downward feeding of the lifting plate 31 and the rotating disc cutter 11. Each extrusion assembly 4 includes a guide inclined plate 41 that contacts the guide wheel 32.

[0044] Each extrusion assembly 4 includes a mounting plate 42 fixedly connected to the lower end of the top plate 22, an electric push plate 43 is fixedly connected to the side wall of the mounting plate 42, a guide inclined plate 41 is rotatably mounted on the output end of the electric push plate 43, an L-shaped rod 44 is fixedly connected to the output end of the electric push plate 43, an extrusion block 45 is fixedly connected to one end of the L-shaped rod 44 close to the mounting plate 42, a first touch-pressure switch 46 in contact with the extrusion block 45 is provided on the side wall of the mounting plate 42, a second touch-pressure switch 47 in contact with the guide wheel 32 is provided on the lower wall of the guide inclined plate 41, and the first touch-pressure switch 46 and the second touch-pressure switch 47 respectively control the opening and closing of the two electric telescopic rods 24.

[0045] In view of the problem that the cutting process of the steel structure by the rotary disc cutter in the prior art is continuously performed and is prone to generate more cutting heat, the present invention provides a feeding mechanism 3. During the cutting process, the rotary disc cutter 11 is driven to rotate by the driving motor 25, and the two guide inclined plates 41 are driven to move horizontally by the electric push plate 43. The specific situation of the horizontal displacement of the two guide inclined plates 41 is as follows:

[0046] S1. When the two guide inclined plates 41 approach each other, the two guide wheels 32 are squeezed and pushed, so that the lifting plate 31 drives the rotating disc cutter 11 to move downward, so that the rotating disc cutter 11 contacts and penetrates into the steel structure for cutting;

[0047] S2. When the two guide inclined plates 41 move away from each other, the lifting plate 31 and the rotating disc cutter 11 always have a tendency to move upward under the elastic force of the first spring 28, and the guide gear 26 on the lifting plate 31 can only move downward under the action of the one-way bearing, so the lifting plate 31 and the rotating disc cutter 11 are maintained in the original position;

[0048] S3, when the two guide inclined plates 41 are farthest away from each other, the squeezing block 45 on the L-shaped rod 44 presses the first touch switch 46, so that the electric telescopic rod 24 is turned on and drives the top plate 22 to move downward, further driving the two guide inclined plates 41 to move downward;

[0049] S4, when the two guide inclined plates 41 contact the guide wheel 32, the guide wheel 32 presses the second touch switch 47 to close the electric telescopic rod 24, and no longer drives the top plate 22 to move downward. At this time, when the electric push plate 43 controls the two guide inclined plates 41 to approach each other again, it will continue to push the lifting plate 31 and the rotating disc knife 11 to move downward;

[0050] Through the above steps, the rotating disc cutter 11 can be displaced downward intermittently, so that the cutting process of the steel structure can be carried out in sections, effectively reducing the heat generated during the cutting process, avoiding local overheating of the rotating disc cutter and the steel structure, and preventing deformation or burning of the tool and the workpiece.

[0051] Reference Figure 1 , Figure 5 and Figure 6 The present invention also includes two symmetrically arranged feed reduction components 5 for adjusting the angles of the two guide ramps 41 respectively, so as to achieve the purpose of reducing the feed of the rotating disc cutter 11 correspondingly when the cutting depth increases.

[0052] Each feed amount decreasing assembly 5 includes a rotating rod 51 rotatably connected to the top of the electric push plate 43, and a driving gear 52 and a driven gear 53 are fixedly connected to the rotating rod 51. A fixed rack 54 is installed on the upper end of the cutting table 1 through a supporting rod, and the driving gear 52 and the fixed rack 54 are meshed with each other. A liquid storage box 55 is fixedly connected to the output end of the electric push plate 43, and a piston block 56 is sealingly and slidably connected to the inside of the liquid storage box 55. The upper end of the piston block 56 is fixedly connected to a moving rack 57 meshed with the driven gear 53. A hydraulic telescopic rod 58 is fixedly connected to the side wall of the liquid storage box 55. The interior of the hydraulic telescopic rod 58 is connected to the interior of the liquid storage box 55, and a liquid storage space filled with hydraulic oil is formed between the hydraulic telescopic rod 58 and the liquid storage box 55. An adjusting rack 59 is fixedly connected to the telescopic end of the hydraulic telescopic rod 58, and an adjusting gear 510 meshed with the adjusting rack 59 is fixedly connected to the axis of the guide inclined plate 41.

[0053] Reference Fig.11 Specifically, an L-shaped fixing plate is fixedly connected above the output end of the electric push plate 43, the rotating rod 51 is rotatably connected to the L-shaped fixing plate, and a support rod is fixedly connected to the upper end of the cutting table 1, and a fixed rack 54 is connected to the support rod through a telescopic rod, and an insert 8 is fixedly connected to the side wall of the fixed rack 54, and a U-shaped insert groove 81 is fixedly connected to the output end of the electric push plate 43, and the insert block 8 and the U-shaped insert groove 81 cooperate with each other, so that when the top plate 22 is vertically displaced and the angle of the guide inclined plate 41 is adjusted, the vertical displacement of the electric push plate 43 can make the U-shaped The inlay groove 81 is displaced vertically along the inlay block 8. At the same time, when the electric push plate 43 moves horizontally to feed and cut the rotating disc cutter 11, the extension of the electric push plate 43 drives the rotating rod 51 to move horizontally. At the same time, the fixed rack 54 is driven to move synchronously with the rotating rod 51 through the U-shaped inlay groove 81 and the inlay block 8, so that the driving gear 52 on the rotating rod 51 always keeps in meshing with the fixed rack 54, avoiding the driving gear 52 and the fixed rack 54 from disengaging, resulting in failure of the angle adjustment of the guide inclined plate 41, thereby ensuring the angle adjustment of the guide inclined plate 41.

[0054] In view of the problem in the prior art that as the cutting depth of the rotary disc cutter increases, the area of ​​the cutter cutting into the material increases, the cutting force increases accordingly, and the cutting heat generated also increases, thereby causing the cutter to wear faster, the present invention sets a feed amount reduction component 5, and each time the guide inclined plates 41 approach each other, driving the guide wheel 32 and the rotary disc cutter 11 to move downward, the top plate 22 is at a different height, and in the process of the top plate 22 moving from top to bottom, the driving gear 52 will move along the fixed rack 54, thereby driving the rotating rod 51 to rotate relative to the top plate 22, so that the driven gear 53 rotates, driving the moving rack 57 and the piston block 56 to move downward in the liquid storage box 55, thereby moving the liquid storage box 55 The hydraulic oil in the hydraulic cylinder is squeezed into the hydraulic telescopic rod 58, and the hydraulic telescopic rod 58 further drives the adjustment rack 59 to move, and then the angle of the guide inclined plate 41 is adjusted by adjusting the gear 510, so that the deeper the rotating disc cutter 11 penetrates into the steel structure, the flatter the angle of the guide inclined plate 41 is, so that when the two guide inclined plates 41 approach each other, the distance by which the lifting plate 31 is pushed downward is smaller, and the distance by which the rotating disc cutter 11 is driven downward is also smaller, so that the amount of each feed of the rotating disc cutter 11 decreases continuously with the increase of the cutting depth, which can effectively reduce the cutting force that the tool needs to bear during cutting, thereby reducing the wear and damage risk of the tool, and improving the service life of the rotating disc cutter 11 and the cutting efficiency of the steel structure.

[0055] Reference Figure 1 , Figure 7 and Figure 8 The lifting plate 31 is provided with a speed regulating component 6 controlled by the feed amount decreasing component 5, which is used to adjust the speed of the rotating disc cutter 11 according to the cutting depth. The speed regulating component 6 includes a liquid storage tank 61 fixedly connected to the upper end of the lifting plate 31, and two piston plates 62 are symmetrically sealed and slidably arranged inside the liquid storage tank 61. Push rods 63 are fixedly connected to the two piston plates 62. The parts of the two push rods 63 extending outside the liquid storage tank 61 are fixedly connected to push plates 64 that are in conflict with the guide inclined plates 41 at the corresponding positions. A plurality of second springs are provided between each push plate 64 and the outer wall of the liquid storage tank 61. 65, the lifting plate 31 and the side plate 21 are provided with an adjustment channel 66 at a position directly below the liquid storage tank 61, and the internal sealing sliding connection of the adjustment channel 66 is provided with an adjustment block 67, and the side plate 21 is provided with a sliding rheostat, which includes a side groove 68 provided on the side plate 21, a resistance rod 69 is fixedly connected in the side groove 68, a slide 610 is slidably connected in the side groove 68 along the vertical direction, and a plurality of connecting rods 611 are fixedly connected between the slide 610 and the adjustment block 67, and the driving motor 25 is connected in series with the power supply device arranged inside the side plate 21 through the resistance rod 69 and the slide 610.

[0056] In order to further reduce the cutting force borne by the rotating disc cutter 11, the present invention sets a speed regulating component 6. Since the angle of the guide inclined plate 41 is different when the rotating disc cutter 11 cuts the steel structure at different depths, the degree of squeezing of the push plate 64 by the guide inclined plate 41 is different. The greater the depth of cutting the steel structure, the greater the degree to which the two piston plates 62 are pushed closer to each other by the guide inclined plate 41, thereby allowing more hydraulic oil in the liquid storage tank 61 to enter the regulating channel 66, and drive the slide 610 to slide along the resistance rod 69 through the regulating block 67, so that the resistance of the circuit where the drive motor 25 is located is larger and the current is smaller, so that the rotating speed of the rotating disc cutter 11 is smaller when the depth of cutting the steel structure is greater, thereby further reducing the cutting force borne by the rotating disc cutter 11 and alleviating the tool load.

[0057] Reference Figure 1 to, Fig. 9 and Fig.10 The present invention also includes a cleaning assembly 7, which is used to clean the rotating disc cutter 11 while the rotating disc cutter 11 is cutting. The cleaning assembly 7 includes an incomplete gear 71 fixedly connected to the axis of the rotating disc cutter 11, and a cleaning rack 72 meshing with the incomplete gear 71 is slidably connected to the side wall of the side plate 21 in the vertical direction. A third spring 73 is provided between the cleaning rack 72 and the lifting plate 31, and a lifting rod 74 is fixedly connected to the cleaning rack 72 through an extension rod. Two swing rods 75 are rotatably installed at the lower end of the lifting rod 74, and a pin shaft 76 is rotatably installed at the bottom end of each swing rod 75. Two arc-shaped pin grooves 77 are symmetrically fixedly installed on the side wall of the side plate 21, and the two pin shafts 76 are respectively slidably connected to the two arc-shaped pin grooves 77, and one end of each pin shaft 76 away from the arc-shaped pin groove 77 is fixedly connected to a Y-shaped cleaning block 78.

[0058] Specifically, a limiting block is fixedly connected to each pin shaft 76, and a limiting groove 79 matching the limiting block is formed on the inner bottom wall of each arc-shaped pin groove 77. Through the limiting block and the limiting groove 79, when the Y-shaped cleaning block 78 moves back and forth along the trajectory of the arc-shaped pin groove 77, the Y-shaped cleaning block 78 always fits the rotating disc cutter 11, thereby ensuring the cleaning effect of the Y-shaped cleaning block 78 on the rotating disc cutter 11.

[0059] In addition, the present invention provides a cleaning assembly 7, when the driving motor 25 drives the rotating disc cutter 11 to rotate and cut the steel structure, the cleaning rack 72 can be driven by the incomplete gear 71 to periodically move upward, and under the elastic force of the third spring 73, the cleaning rack 72 is reciprocated vertically, further driving the lifting rod 74 to reciprocate vertically. Under the action of the rocker arm 75, the two pins 76 are periodically moved back and forth inside the two arc-shaped pin grooves 77. Since the pins 76 are provided with a Y-shaped cleaning block 78 that fits the rotating disc cutter 11, the rotating disc cutter 11 can be cleaned reciprocatingly, avoiding the adhesion of debris to the rotating disc cutter 11 due to excessive temperature during cutting, thereby improving the cutting effect on the steel structure.

[0060] The present invention can be explained by the following operation mode:

[0061] During cutting, the rotary disc cutter 11 is driven to rotate by the driving motor 25, and the two guide inclined plates 41 are driven to move horizontally by the electric push plate 43. When the two guide inclined plates 41 approach each other, the two guide wheels 32 are squeezed and pushed, so that the lifting plate 31 drives the rotary disc cutter 11 to move downward, so that the rotary disc cutter 11 contacts and penetrates into the steel structure for cutting. When the two guide inclined plates 41 move away from each other, the lifting plate 31 and the rotary disc cutter 11 remain in their original positions. When the two guide inclined plates 41 move away from each other to the farthest end, the electric telescopic rod 24 is opened and drives the top plate 22 to move downward. When the two guide inclined plates 41 contact the guide wheels 32, the top plate 22 no longer moves downward. At this time, when the electric push plate 43 approaches each other again, it will continue to push the lifting plate 31 and the rotary disc cutter 11 downward, so that the cutting process of the steel structure is carried out in sections.

[0062] When the lifting plate 31 and the rotating disc cutter 11 move downward to cut the steel structure, the top plate 22 moves downward from the top, and the driving gear 52 and the fixed rack 54 drive the rotating rod 51 to rotate relative to the top plate 22, and the hydraulic oil in the liquid storage box 55 is squeezed into the hydraulic telescopic rod 58 through the driven gear 53 and the moving rack 57. The angle of the guide inclined plate 41 is adjusted by adjusting the rack 59 and the adjusting gear 510, so that the deeper the rotating disc cutter 11 goes into the steel structure, the smaller the feed amount of the rotating disc cutter 11 is, thereby reducing the cutting force that the tool needs to bear during cutting;

[0063] Since the angle of the guide ramp 41 is different when the rotary disc cutter 11 cuts the steel structure at different depths, the degree of squeezing of the push plate 64 by the guide ramp 41 is different. When the depth of cutting the steel structure is greater, more hydraulic oil in the liquid storage tank 61 enters the regulating channel 66, thereby increasing the resistance of the circuit where the drive motor 25 is located. When the depth of cutting the steel structure is greater, the rotation speed of the rotary disc cutter 11 is lower, thereby reducing the load on the cutter.

[0064] When the driving motor 25 drives the rotating disc cutter 11 to rotate and cut the steel structure, the cleaning rack 72 can be driven by the incomplete gear 71 to perform reciprocating vertical displacement, and further drive the lifting rod 74 to perform reciprocating vertical displacement, so that the two Y-shaped cleaning blocks 78 fit the rotating disc cutter 11 to wipe it back and forth, thereby preventing debris from sticking to the rotating disc cutter 11 due to excessive temperature during cutting.

[0065] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cutting device for steel structure processing, characterized in that: include: A cutting table (1), wherein a rotating disc cutter (11) is arranged above the cutting table (1), and a supporting mechanism (2) for supporting and driving the rotating disc cutter (11), wherein the supporting mechanism (2) comprises a side plate (21) and a top plate (22) arranged above the side plate (21); A feeding mechanism (3) is used to drive the rotating disc cutter (11) to intermittently move in the vertical direction to perform cutting processing of the steel structure in sections. The feeding mechanism (3) comprises a lifting plate (31) fixedly connected to the upper end of the side plate (21). Both sides of the lifting plate (31) are hinged with guide wheels (32) through hinge seats. Two extrusion assemblies (4) are symmetrically arranged below the top plate (22). The two extrusion assemblies (4) are used to squeeze and push the guide wheels (32) on both sides of the lifting plate (31) to achieve intermittent downward feeding of the lifting plate (31) and the rotating disc cutter (11). Each of the extrusion assemblies (4) comprises a guide inclined plate (41) that contacts the guide wheel (32). Two symmetrically arranged feed rate reduction components (5) are used to adjust the angles of the two guide ramps (41) respectively, so as to achieve the purpose of correspondingly reducing the feed rate of the rotating disc cutter (11) when the cutting depth increases.

2. The cutting device for steel structure processing according to claim 1, characterized in that: The support mechanism (2) further comprises a U-shaped support plate (23) fixedly connected to the upper end of the cutting table (1); two electric telescopic rods (24) for driving the top plate (22) are fixedly connected to the lower end of the U-shaped support plate (23); the rotating disc knife (11) is rotatably mounted on the side wall of the side plate (21); a driving motor (25) for driving the rotating disc knife (11) is provided on the side wall of the side plate (21) away from the rotating disc knife (11); a guide gear (26) is installed on the side wall of the side plate (21) via a one-way bearing; a guide rack (27) meshing with the guide gear (26) is provided above the cutting table (1) in the vertical direction; and a first spring (28) is provided between the lifting plate (31) and the cutting table (1).

3. The cutting device for steel structure processing according to claim 2, characterized in that: The guide rack (27) is slidably connected to the upper end of the cutting table (1).

4. The cutting device for steel structure processing according to claim 2, characterized in that: Each of the extrusion assemblies (4) further comprises a mounting plate (42) fixedly connected to the lower end of the top plate (22); an electric push plate (43) is fixedly connected to the side wall of the mounting plate (42); the guide inclined plate (41) is rotatably mounted on the output end of the electric push plate (43); an L-shaped rod (44) is fixedly connected to the output end of the electric push plate (43); an extrusion block (45) is fixedly connected to one end of the L-shaped rod (44) close to the mounting plate (42); a first touch-pressure switch (46) in contact with the extrusion block (45) is provided on the side wall of the mounting plate (42); a second touch-pressure switch (47) in contact with the guide wheel (32) is provided on the lower wall of the guide inclined plate (41); the first touch-pressure switch (46) and the second touch-pressure switch (47) respectively control the opening and closing of the two electric telescopic rods (24).

5. The cutting device for steel structure processing according to claim 4, characterized in that: Each of the feed amount decreasing components (5) comprises a rotating rod (51) rotatably connected to the upper part of the electric push plate (43), a driving gear (52) and a driven gear (53) being fixedly connected to the rotating rod (51), a fixed rack (54) being installed on the upper end of the cutting table (1) via a supporting rod, the driving gear (52) and the fixed rack (54) being meshed with each other, a liquid storage box (55) being fixedly connected to the output end of the electric push plate (43), a piston block (56) being sealingly slidably connected to the interior of the liquid storage box (55), and the upper end of the piston block (56) being fixedly A movable rack (57) meshing with the driven gear (53) is connected, a hydraulic telescopic rod (58) is fixedly connected to the side wall of the liquid storage box (55), the interior of the hydraulic telescopic rod (58) is communicated with the interior of the liquid storage box (55), and a liquid storage space filled with hydraulic oil is formed between the hydraulic telescopic rod (58) and the liquid storage box (55), an adjustment rack (59) is fixedly connected to the telescopic end of the hydraulic telescopic rod (58), and an adjustment gear (510) meshing with the adjustment rack (59) is fixedly connected at the axis of the guide inclined plate (41).

6. The cutting device for steel structure processing according to claim 2, characterized in that: The lifting plate (31) is provided with a speed regulating component (6) controlled by the feed amount decreasing component (5) for adjusting the speed of the rotating disc cutter (11) according to the cutting depth. The speed regulating component (6) includes a liquid storage tank (61) fixedly connected to the upper end of the lifting plate (31). Two piston plates (62) are symmetrically and sealedly slidably arranged inside the liquid storage tank (61). Push rods (63) are fixedly connected to the two piston plates (62). The parts of the two push rods (63) extending outside the liquid storage tank (61) are fixedly connected to push plates (64) that are in contact with the guide inclined plates (41) at corresponding positions. A plurality of second springs (65) are provided between each push plate (64) and the outer wall of the liquid storage tank (61). The lifting plate (31) and the side plate (21) are provided with an adjustment channel (66) at a position directly below the liquid storage tank (61); the adjustment channel (66) is sealed and slidably connected to an adjustment block (67); the side plate (21) is provided with a sliding rheostat; the sliding rheostat comprises a side groove (68) provided on the side plate (21); a resistance rod (69) is fixedly connected in the side groove (68); a slide plate (610) is slidably connected in the side groove (68) along a vertical direction; a plurality of connecting rods (611) are fixedly connected between the slide plate (610) and the adjustment block (67); the driving motor (25) is connected in series with a power supply device arranged in the side plate (21) via the resistance rod (69) and the slide plate (610).

7. The cutting device for steel structure processing according to claim 1, characterized in that: The invention also comprises a cleaning assembly (7) for cleaning the rotating disc cutter (11) while the rotating disc cutter (11) is performing cutting work, the cleaning assembly (7) comprising an incomplete gear (71) fixedly connected to the axis of the rotating disc cutter (11), a cleaning rack (72) meshing with the incomplete gear (71) being slidably connected to the side wall of the side plate (21) in a vertical direction, a third spring (73) being arranged between the cleaning rack (72) and the lifting plate (31), the cleaning rack (72) being arranged to move relative to the lifting plate (31), and the cleaning rack (71) being arranged to move relative to the lifting plate (31). 2) is fixedly connected with a lifting rod (74) through an extension rod, and two swing rods (75) are rotatably installed at the lower end of the lifting rod (74), and a pin shaft (76) is rotatably installed at the bottom end of each swing rod (75), and two arc-shaped pin grooves (77) are symmetrically fixedly installed on the side wall of the side plate (21), and the two pin shafts (76) are respectively slidably connected to the two arc-shaped pin grooves (77), and one end of each pin shaft (76) away from the arc-shaped pin groove (77) is fixedly connected with a Y-shaped cleaning block (78).

8. The cutting device for steel structure processing according to claim 7, characterized in that: Each of the pin shafts (76) is fixedly connected to a limiting block, and the inner bottom wall of each of the arc-shaped pin grooves (77) is provided with a limiting groove (79) that matches the limiting block.

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