Metal building material cutting equipment

Abstract

The invention belongs to the technical field of rotary cutting disc cutting, and particularly relates to metal building material cutting equipment which comprises a base. The round pipe cutting machine further comprises a two-way clamping mechanism, a rotary disc cutter cutting mechanism, two sets of limiting and stabilizing mechanisms, a round pipe diameter detection feedback mechanism, a round pipe hardness detection feedback mechanism, a single-time rotation angle control mechanism, a cutting feed amount control mechanism and a PLC. According to the device, extra pressing protection can be provided at the cutting position, it is avoided that vibration generated in the cutting process causes displacement of the circular pipe, the diameter of the circular pipe can be rapidly detected, one-time cutting or multi-angle cutting is selected based on the diameter of the circular pipe, and the cutting efficiency is improved. The situation that the large-diameter round pipe is cut without enough cutting force is avoided, a motor with relatively low power and a cutting disc with low strength can be used for cutting, and the cutting speed and the cutting feeding amount can be automatically adjusted and controlled based on the hardness of the round pipe.

Description

Technical Field

[0001] The invention belongs to the technical field of rotary disc knife cutting, and in particular relates to a metal building material cutting device. Background Art

[0002] Rotating disc knife cutting equipment mainly uses high-speed rotating disc cutters to cut metal building materials. The edge of the disc cutter is usually very sharp. Driven by the motor, it rotates at a high speed. When the metal building material comes into contact with the rotating disc cutter, the cutting edge of the cutter cuts the metal material through shear force. Compared with flame cutting and plasma cutting, its cutting surface is relatively smooth and does not require too much subsequent processing. In addition, the equipment is relatively simple, and the operation and maintenance costs are low.

[0003] When cutting round tubes with smaller diameters, the rotating disc knife cutting equipment can perform the cutting work at one time, thereby improving the cutting efficiency. However, for round tubes with larger diameters, the disc knife is usually required to have sufficient cutting force. If the disc knife is not strong enough or the motor power is insufficient, the knife will deform, wear more severely or even be damaged during the cutting process, resulting in the inability to cut smoothly. In addition, when cutting large-diameter round tubes, the contact area between the disc knife and the round tube is larger, and more heat is generated during one-time cutting. If the heat dissipation measures are not appropriate, the material properties near the cutting surface of the round tube will change, thereby affecting the quality of the round tube. For small processing plants, the equipment is relatively simple, and it is more difficult to cut large-diameter round tubes. Summary of the invention

[0004] The object of the present invention is to provide a metal building material cutting device in view of the above problems.

[0005] To achieve the above object, the present invention adopts the following technical solution: a metal building material cutting device, including a base, and also including: A two-way clamping mechanism is fixedly mounted on the upper end of the base; A rotating disc knife cutting mechanism is fixedly mounted on the rear side of the upper end of the base; Two sets of limiting and stabilizing mechanisms are fixedly installed on the upper end of the base; A round tube diameter detection feedback mechanism is fixedly mounted on the bidirectional clamping mechanism; A round tube hardness detection feedback mechanism, fixedly connected to the round tube diameter detection feedback mechanism; A single rotation angle control mechanism is fixedly mounted on the bidirectional clamping mechanism; A cutting feed control mechanism is fixedly mounted on the upper end of the base; The PLC controller is fixedly mounted on the upper end of the base and is respectively electrically connected to the bidirectional clamping mechanism, the rotating disc knife cutting mechanism, the limiting and stabilizing mechanism, the round tube diameter detection feedback mechanism, the round tube hardness detection feedback mechanism, the single rotation angle control mechanism and the cutting feed amount control mechanism.

[0006] In the above-mentioned metal building material cutting equipment, the bidirectional clamping mechanism includes two side panels symmetrically fixedly connected to the upper end of the base, the side walls of the side panels are fixedly sleeved with two electric push rods, the movable ends of the two electric push rods are fixedly connected with clamping plates, the side walls of the clamping plates are rotatably connected with positioning plugs, and the outer wall of one of the clamping plates is fixedly provided with a stepper motor for driving the positioning plug to rotate.

[0007] In the above-mentioned metal building material cutting equipment, the rotating disc knife cutting mechanism includes a support frame fixedly mounted on the upper end of the base, a connecting frame rotatably connected inside the support frame, a cutting machine fixedly mounted inside the connecting frame, and a servo motor for driving the connecting frame to deflect is fixedly mounted on the outer wall of the support frame.

[0008] In the above-mentioned metal building material cutting equipment, the limiting and stabilizing mechanism includes a limiting ring fixedly mounted on the upper end of the base, and a plurality of electric telescopic rods equidistantly fixedly sleeved on the limiting ring are arranged in a ring-shaped distribution, and the movable end of the electric telescopic rod located in the limiting ring is fixedly connected to an extrusion roller.

[0009] In the above-mentioned metal building material cutting equipment, the round tube diameter detection feedback mechanism includes a diameter detection shell fixedly connected to the upper end of the clamping plate, the upper and lower ends of the diameter detection shell are penetrated by a lifting rod with a sliding sleeve, the lower end of the lifting rod is fixedly connected with a resistance block, the upper end of the resistance block and the lower end of the diameter detection shell are fixedly connected with an extrusion spring sleeved outside the lifting rod, one side of the inner wall of the diameter detection shell is fixedly provided with a diameter feedback resistance rod arranged parallel to the lifting rod, the rod wall of the lifting rod located in the diameter detection shell is fixedly connected with a diameter feedback conductive contact electrically contacting the diameter feedback resistance rod, and the other side of the inner wall of the diameter detection shell is also fixedly provided with a plurality of diameter feedback switches arranged along the length direction of the lifting rod, and the rod wall of the lifting rod located in the diameter detection shell is fixedly connected with a trigger protrusion arranged corresponding to the position of the diameter feedback switch.

[0010] In the above-mentioned metal building material cutting equipment, the round tube hardness detection feedback mechanism includes an L-shaped synchronization plate fixedly connected to the upper end of the lifting rod, the lower end of the L-shaped synchronization plate is fixedly connected to a hardness detection shell, the lower end of the hardness detection shell is movably inserted with a sliding rod, the lower end of the sliding rod is fixedly connected with a detection steel ball, the upper end of the sliding rod is fixedly connected with a magnetic fixing plate, the top of the inner wall of the hardness detection shell is fixedly installed with a fixed electromagnetic block magnetically connected to the magnetic fixing plate, and the top of the hardness detection shell is fixedly inserted with a laser rangefinder.

[0011] In the above-mentioned metal building material cutting equipment, the single rotation angle control mechanism includes a control circular shell, an electric connection block is fixedly installed on one side of the inner wall of the control circular shell, a rotating shaft is rotatably connected at the center of the inner wall of the control circular shell, a driving motor for driving the rotating shaft to rotate is fixedly installed on the outer wall of the control circular shell, an extension rod is fixedly connected to the shaft wall of the rotating shaft, and an arc-shaped conductive block is fixedly connected to the end of the extension rod away from the rotating shaft.

[0012] In the above-mentioned metal building material cutting equipment, the cutting feed amount control mechanism includes a mounting shell, a plurality of guide slide bars arranged side by side are fixedly connected to the upper side of the inner wall of the mounting shell, and the plurality of guide slide bars are externally slidably sleeved with the same force plate, a plurality of compensation springs sleeved on the outside of the guide slide bars are fixedly connected to the opposite side of the force plate and the mounting shell, a thrust permanent magnet plate is fixedly connected to the side of the force plate away from the compensation spring, a thrust electromagnetic plate arranged opposite to the thrust permanent magnet plate is fixedly mounted on the inner wall of the mounting shell, a transmission screw arranged parallel to the guide slide bar is rotatably connected to the lower side of the inner wall of the mounting shell, a feed motor for driving the transmission screw to rotate is fixedly mounted on the outer wall of the mounting shell, a pressing plate is threadedly sleeved on the rod wall of the transmission screw, the upper end of the pressing plate is set to a round head structure, a regulating switch arranged corresponding to the position of the pressing plate is fixedly mounted on the lower end of the force plate, and a termination switch arranged opposite to the pressing plate is fixedly mounted on one side of the inner wall of the mounting shell.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the bidirectional clamping mechanism, rotating disc knife cutting mechanism and limit stabilization mechanism, the round tube can be cut quickly and stably, the round tube can be quickly clamped, and additional clamping protection can be provided at the cutting position to avoid the vibration generated during the cutting process causing the round tube to move, thereby affecting the cutting quality.

[0014] 2. Through the set round tube diameter detection feedback mechanism and single rotation angle control mechanism, the diameter size of the round tube can be quickly detected, and one-time cutting or multi-angle cutting can be selected based on the size of the round tube diameter. When the round tube diameter is small, one-time cutting is adopted, and when the round tube diameter is large, multiple cutting at multiple angles is adopted to avoid insufficient cutting force to complete the cutting of large diameter round tubes. By cutting the round tube at multiple angles, the cutting force required by the disc knife for each cutting is relatively small, which makes it possible to use relatively small power motors and slightly lower strength disc knives for cutting. For some cutting equipment with limited power or disc knife specifications that are not suitable for one-time cutting of large diameter round tubes, this method is more feasible and more suitable for promotion and use in small processing plants, and can automatically adjust the number and angle of cutting based on the size of the round tube diameter. On the premise of ensuring the complete cutting of the round tube, it can also avoid the problem of low cutting efficiency caused by too many cutting times.

[0015] 3. Through the set round tube hardness detection feedback mechanism and cutting feed control mechanism, the hardness of the round tube can be quickly detected before cutting, and the cutting speed and cutting feed can be automatically adjusted based on the hardness of the round tube. The greater the hardness of the round tube, the smaller the cutting speed and cutting feed of the round tube. Because for harder round tubes, using too fast a cutting speed will cause the tool to wear more severely and the quality of the cutting surface will decrease. Using too large a feed rate will cause the tool to bear too much cutting force, causing the tool to deform or damage, and at the same time cause burrs on the cutting surface, so as to ensure the cutting quality of the round tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view structural schematic diagram of the present invention; Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure of the middle positioning plug; Figure 3 It is a side structural schematic diagram of the rotary disc knife cutting mechanism of the present invention; Figure 4 It is a structural schematic diagram of the position limiting and stabilizing mechanism of the present invention; Figure 5 It is a schematic cross-sectional view of the round tube diameter detection feedback mechanism of the present invention; Figure 6 It is a three-dimensional cross-sectional structural schematic diagram of the round tube hardness detection feedback mechanism of the present invention; Figure 7 It is a cross-sectional structural schematic diagram of a single rotation angle control mechanism of the present invention; Figure 8 It is a schematic cross-sectional structure diagram of the cutting feed amount control mechanism of the present invention.

[0017] In the figure: 1 base, 2 two-way clamping mechanism, 21 side plate, 22 electric push rod, 23 clamping plate, 24 positioning plug, 25 stepping motor, 3 rotating disc knife cutting mechanism, 31 support frame, 32 connecting frame, 33 cutting machine, 34 servo motor, 4 limit stabilization mechanism, 41 limit ring, 42 electric telescopic rod, 43 extrusion roller, 5 round tube diameter detection feedback mechanism, 51 diameter detection shell, 52 lifting rod, 53 resistance block, 54 extrusion spring, 55 diameter feedback resistor rod, 56 diameter feedback conductive contact piece, 57 diameter feedback switch, 58 trigger bump, 6 round tube hardness detection feedback mechanism, 61L-shaped synchronization plate, 62hardness detection shell, 63 sliding rod, 64 detection steel ball, 65 magnetic fixing plate, 66 fixed electromagnetic block, 67 laser rangefinder, 7single rotation angle control mechanism, 71 control round shell, 72 electrical connection block, 73 rotating shaft, 74 driving motor, 75 extension rod, 76 arc-shaped conductive block, 8cutting feed amount control mechanism, 81 mounting shell, 82 guide sliding rod, 83 force plate, 84 compensation spring, 85 thrust permanent magnet plate, 86 thrust electromagnetic plate, 87 transmission screw, 88 feeding motor, 89 pressing plate, 810 regulating switch, 811 termination switch, 9PLC controller. Implementation

[0018] 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.

[0019] like Figure 1-Figure 8 As shown, a metal building material cutting device includes a base 1 and also includes: The bidirectional clamping mechanism 2 is fixedly mounted on the upper end of the base 1. The bidirectional clamping mechanism 2 includes two side panels 21 symmetrically fixedly connected to the upper end of the base 1. Two electric push rods 22 are fixedly inserted into the side walls of the side panels 21. The moving ends of the two electric push rods 22 are fixedly connected to a clamping plate 23. The side walls of the clamping plates 23 are rotatably connected to positioning plugs 24. A stepping motor 25 for driving the positioning plug 24 to rotate is fixedly mounted on the outer wall of one of the clamping plates 23.

[0020] The rotating disc knife cutting mechanism 3 is fixedly mounted on the rear side of the upper end of the base 1. The rotating disc knife cutting mechanism 3 includes a support frame 31 fixedly mounted on the upper end of the base 1. A connecting frame 32 is rotatably connected to the support frame 31. A cutting machine 33 is fixedly mounted in the connecting frame 32. A servo motor 34 for driving the connecting frame 32 to deflect is fixedly mounted on the outer wall of the support frame 31.

[0021] Two sets of limiting and stabilizing mechanisms 4 are fixedly installed on the upper end of the base 1. The limiting and stabilizing mechanisms 4 include a limiting ring 41 fixedly installed on the upper end of the base 1. A plurality of electric telescopic rods 42 are equidistantly fixedly sleeved on the limiting ring 41 and are distributed in a ring shape. The moving end of the electric telescopic rod 42 located in the limiting ring 41 is fixedly connected to an extrusion roller 43.

[0022] The circular tube diameter detection feedback mechanism 5 is fixedly mounted on the bidirectional clamping mechanism 2. The circular tube diameter detection feedback mechanism 5 includes a diameter detection shell 51 fixedly connected to the upper end of the clamping plate 23. The upper and lower ends of the diameter detection shell 51 are penetrated by a lifting rod 52 which is slidably sleeved. The lower end of the lifting rod 52 is fixedly connected with a resistance block 53. The upper end of the resistance block 53 and the lower end of the diameter detection shell 51 are fixedly connected with an extrusion spring 54 sleeved outside the lifting rod 52. A diameter feedback resistor rod 55 arranged parallel to the lifting rod 52 is fixedly mounted on one side of the inner wall of the diameter detection shell 51. The rod wall of the lifting rod 52 located in the diameter detection shell 51 is fixedly connected with a diameter feedback conductive contact piece 56 which is in electrical contact with the diameter feedback resistor rod 55. A plurality of diameter feedback switches 57 arranged along the length direction of the lifting rod 52 are also fixedly mounted on the other side of the inner wall of the diameter detection shell 51. The rod wall of the lifting rod 52 located in the diameter detection shell 51 is fixedly connected with a trigger protrusion 58 arranged corresponding to the position of the diameter feedback switch 57.

[0023] The circular tube hardness detection feedback mechanism 6 is fixedly connected to the circular tube diameter detection feedback mechanism 5. The circular tube hardness detection feedback mechanism 6 includes an L-shaped synchronization plate 61 fixedly connected to the upper end of the lifting rod 52. The lower end of the L-shaped synchronization plate 61 is fixedly connected to a hardness detection shell 62. The lower end of the hardness detection shell 62 is movably inserted with a sliding rod 63. The lower end of the sliding rod 63 is fixedly connected with a detection steel ball 64. The upper end of the sliding rod 63 is fixedly connected with a magnetic fixing plate 65. The top of the inner wall of the hardness detection shell 62 is fixedly provided with a fixed electromagnetic block 66 magnetically connected to the magnetic fixing plate 65. The top of the hardness detection shell 62 is fixedly inserted with a laser rangefinder 67.

[0024] The single-rotation angle control mechanism 7 is fixedly mounted on the bidirectional clamping mechanism 2. The single-rotation angle control mechanism 7 includes a control shell 71. An electrical connection block 72 is fixedly mounted on one side of the inner wall of the control shell 71. A rotating shaft 73 is rotatably connected to the center of the inner wall of the control shell 71. A driving motor 74 for driving the rotating shaft 73 to rotate is fixedly mounted on the outer wall of the control shell 71. An extension rod 75 is fixedly connected to the shaft wall of the rotating shaft 73. An arc-shaped conductive block 76 is fixedly connected to the end of the extension rod 75 away from the rotating shaft 73.

[0025] The cutting feed control mechanism 8 is fixedly mounted on the upper end of the base 1. The cutting feed control mechanism 8 includes a mounting shell 81. A plurality of guide slide bars 82 arranged side by side are fixedly connected to the upper side of the inner wall of the mounting shell 81. The plurality of guide slide bars 82 are slidably sleeved with a same force plate 83. A plurality of compensation springs 84 sleeved on the outside of the guide slide bars 82 are fixedly connected to the opposite side of the force plate 83 and the mounting shell 81. A thrust permanent magnet plate 85 is fixedly connected to the side of the force plate 83 away from the compensation spring 84. A thrust permanent magnet plate 85 is fixedly mounted on the inner wall of the mounting shell 81. The thrust electromagnetic plate 86 is arranged opposite to each other, and the lower side of the inner wall of the mounting shell 81 is rotatably connected to a transmission screw 87 arranged parallel to the guide slide bar 82. The outer wall of the mounting shell 81 is fixedly provided with a feed motor 88 for driving the transmission screw 87 to rotate. The rod wall of the transmission screw 87 is threadedly sleeved with a pressing plate 89. The upper end of the pressing plate 89 is set as a round head structure. The lower end of the force plate 83 is fixedly provided with a regulating switch 810 arranged corresponding to the position of the pressing plate 89. A termination switch 811 arranged opposite to the pressing plate 89 is fixedly provided on one side of the inner wall of the mounting shell 81.

[0026] The PLC controller 9 is fixedly mounted on the upper end of the base 1, and is electrically connected to the bidirectional clamping mechanism 2, the rotating disc knife cutting mechanism 3, the limiting and stabilizing mechanism 4, the round tube diameter detection feedback mechanism 5, the round tube hardness detection feedback mechanism 6, the single rotation angle control mechanism 7 and the cutting feed amount control mechanism 8 respectively.

[0027] The operating principle of the present invention is described as follows: the round tube to be cut is placed between the two positioning plugs 24 and passes through the two limiting rings 41. The PLC controller 9 controls the electric push rods 22 on both sides to move. The electric push rods 22 push the supporting plate to move, so that the two facing positioning plugs 24 are close to each other, so that the positioning plugs 24 are inserted into the inner sides of the two ends of the round tube to achieve stable positioning of the round tube. The positioning plugs 24 are provided with a multi-stage stepped structure, which can accurately and stably clamp and fix round tubes of different diameters. In the process of clamping the round tube, the round tube is manually supported by hand to assist in limiting the position, and the L-shaped synchronous plate 61 is manually pulled up, the L-shaped synchronous plate 61 drives the lifting rod 52 to move up, and the lifting rod 52 drives the resistance block 53 to move up to prevent the resistance block 53 from blocking the installation and fixation of the round tube. After the round tube is limited and installed, the L-shaped synchronous plate 61 is released, and the resistance block 53 moves toward the round tube under the action of the extrusion spring 54 until the resistance block 53 contacts the outer wall of the round tube. The movement of the lifting rod 52 will drive the trigger protrusion 58 to move synchronously. Specifically, when the diameter of the round tube is larger, the distance that the resistance block 53 can move is shorter, so that the trigger protrusion 58 will eventually press and act on the diameter feedback switch 57 on the upper side. Conversely, when the diameter of the round tube is smaller, the distance that the resistance block 53 can move is longer, so that the trigger protrusion 58 will eventually press and act on the diameter feedback switch 57 on the lower side. The diameter feedback switch 57 will feedback a signal to the PLC controller 9 after being pressed for 5 seconds. It is additionally explained that the step structure provided on the positioning plug 24 can fix round tubes of various diameters, but it is also for fixing round tubes of fixed sizes. Therefore, after each standard size of round tube is limited and fixed, the trigger protrusion 58 will press and act on the diameter feedback switch 57 at the corresponding position. When the diameter feedback switches 57 at different positions are pressed and triggered, the PLC controller 9 controls the electric telescopic rod 42 on the limit ring 41 to push the extrusion roller 43 to move different distances. Specifically, when the diameter of the round tube is larger and the diameter feedback switch 57 on the upper side is pressed and triggered, the PLC controller 9 controls the electric telescopic rod 42 to push the extrusion roller 43 to move a shorter distance. Conversely, when the diameter of the round tube is smaller and the diameter feedback switch 57 on the lower side is pressed and triggered, the PLC controller 9 controls the electric telescopic rod 42 to push the extrusion roller 43 to move a longer distance, ensuring that the extrusion roller 43 can be stably pressed outside the round tube, providing additional clamping force on both sides of the round tube cutting position, and ensuring the stability of the subsequent cutting process. When testing the hardness of the outer surface of the round tube, since the L-shaped synchronization plate 61 is connected to the lifting rod 52, when the relative position of the lifting rod 52 changes due to the different diameters of the round tube, the L-shaped synchronization plate 61 moves synchronously with the hardness detection shell 62, so that the interval between the detection steel ball 64 and the outer wall of the round tube remains fixed, ensuring the accuracy of the hardness detection. During the detection, the PLC controller 9 controls the power supply equipment to cut off the power supply to the fixed electromagnetic block 66, and the fixed electromagnetic block 66 loses its magnetism when it is powered off, and then contacts the magnetic attraction of the magnetic fixing plate 65. Under the action of gravity, the detection steel ball 64 falls and hits the outer wall of the steel tube, and rebounds. The laser rangefinder 67 monitors the distance from the magnetic fixing plate 65 in real time. Then confirm the rebound distance. Specifically, when the hardness of the round tube is higher, the elastic modulus is relatively higher, because the bonding force between atoms of the material with high hardness is stronger, and when subjected to external force, its ability to resist deformation (including elastic deformation and plastic deformation) is also stronger. When the detection steel ball 64 impacts the surface of the round tube, the round tube will undergo elastic deformation and possible local plastic deformation. If the hardness of the round tube is high, the ability of the round tube to resist deformation is strong, the deformation of the round tube after the impact of the detection steel ball 64 is small, and the return distance of the detection steel ball 64 is relatively large. On the contrary, if the hardness of the round tube is low, the deformation is large, and the return distance of the detection steel ball 64 is small. The hardness of the round tube is determined by detecting the shortest distance after the final rebound of the magnetic fixing plate 65 using the laser rangefinder 67; The greater the hardness of the round tube detected, the PLC controller 9 controls the cutting machine 33 to work at a smaller cutting speed, and controls the servo motor 34 to work at a slower speed, reducing the cutting feed amount to ensure the cutting quality. During cutting, the cutting machine 33 provides cutting force, and the servo motor 34 drives the connecting frame 32 to drive the cutting machine 33 to rotate and move, thereby enabling the cutting machine 33 to quickly cut and trim the round tube; When the diameter of the round tube is detected, the movement of the lifting rod 52 will drive the diameter feedback conductive contact 56 to slide synchronously on the diameter feedback resistor rod 55. Specifically, when the diameter of the round tube is larger, the lifting rod 52 moves downward for a shorter distance, thereby making the diameter feedback conductive contact 56 slide on the diameter feedback resistor rod 55 shorter, so that the access resistance of the diameter feedback resistor rod 55 is smaller, and the diameter conductive contact and the diameter feedback resistor rod 55 are connected in series to the power supply circuit of the thrust electromagnetic plate 86. The thrust electromagnetic plate 86 will pass a larger current, thereby generating the same and larger magnetism as the thrust permanent magnet plate 85, driving the force plate 83 to slide a larger distance along the guide slide rod 82 to overcome the elastic force of the compensation spring 84, so that the interval between the control switch 810 at the lower end of the force plate 83 and the pressing plate 89 is shorter; When cutting starts, the PLC controller 9 synchronously controls the feed motor 88 and the servo motor 34 to work. Both the feed motor 88 and the servo motor 34 work at standard power first. The feed motor 88 then drives the transmission screw 87 to rotate. The threaded sleeve connection between the transmission screw 87 and the pressing plate 89 allows the pressing plate 89 to move in the mounting shell 81 until the round head structure at the upper end of the pressing plate 89 presses on the regulating switch 810, indicating that the cutting machine 33 is in contact with the round tube. At this time, the PLC controller 9 controls the feed motor 88 and the servo motor 34 to work at the feed speed obtained after the hardness test of the round tube. The greater the hardness of the detected round tube, the PLC controller 9 controls the servo motor 34 and the feed motor 88 to work at a slower speed to reduce the cutting feed amount. Specifically, when the diameter of the round tube is larger, the round tube is The smaller the distance between the outer wall and the cutting machine 33, the smaller the distance between the outer wall and the cutting machine 33 is. Therefore, after the servo motor 34 works, the connecting frame 32 drives the cutting machine 33 to deviate a shorter distance and contact the round tube to enter the cutting state. In the process of the cutting machine 33 contacting the round tube, controlling the servo motor 34 to move at a standard speed can improve the cutting efficiency. When the cutting machine 33 contacts the round tube and officially starts cutting, the cutting feed amount is controlled based on the hardness of the round tube to ensure the cutting quality. As the pressing plate 89 continues to move, when the pressing plate 89 presses on the termination switch 811, it means that the single cutting work is completed, and the PLC controller 9 controls the feed motor 88 to reverse, so that the pressing plate 89 is reset to the initial position. In this process, the pressing trigger of the control switch 810 does not change the working parameters of the servo motor 34 and the feed motor 88. According to the diameter of the round tube, the diameter feedback switch 57 at the corresponding position is pressed and triggered to determine whether to cut once or cut multiple times at multiple angles. When the diameter of the round tube is small and the diameter feedback switch 57 on the lower side is pressed and triggered, the rotary disc knife cutting mechanism 3 completes the entire cutting work after completing one cutting work; When the diameter feedback switch 57 on the upper side is pressed and triggered to indicate that the diameter of the current round tube is too large and multiple multi-angle cutting operations are required, after the rotating disc knife cutting mechanism 3 completes one cutting operation and resets, the PLC controller 9 controls the stepper motor 25 to work, and the stepper motor 25 cooperates with the positioning plug 24 to drive the round tube to rotate, so that after the round tube rotates a certain angle, the rotating disc knife cutting mechanism 3 is driven to perform another cutting operation. An angle sensor is installed in the stepper motor 25. After the stepper motor 25 drives the round tube to rotate one circle, multiple multi-angle cutting operations on the round tube are completed, which is suitable for cutting round tubes with large diameters. When the stepper motor 25 is in motion, the PLC controller 9 controls the drive motor 74 to move synchronously. The drive motor 74 drives the arc-shaped conductive block 76 to move in the control round shell 71 through the rotating shaft 73 and the extension rod 75. When the arc-shaped conductive block 76 contacts the electrical connection block 72 again, an electrical signal is fed back to the PLC controller 9. The PLC controller 9 controls the stepper motor 25 and the drive motor 74 to stop working synchronously to control the rotation angle of the round tube. Specifically, when the diameter of the round tube is larger, the diameter feedback switch 57 on the upper side is pressed and triggered, and the PLC controller 9 controls the drive motor 74 to work at a higher power, so that the arc-shaped conductive block 76 can contact the electrical connection block 72 faster, shortening the working time of the stepper motor 25, making the rotation angle of the round tube smaller, and achieving more cutting work before the round tube completes one rotation, ensuring that the large-diameter round tube is fully cut and cut.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A metal building material cutting device, comprising a base (1), characterized in that: Also includes: A bidirectional clamping mechanism (2) is fixedly mounted on the upper end of the base (1); a rotating disc knife cutting mechanism (3) is fixedly mounted on the rear side of the upper end of the base (1); two sets of limiting and stabilizing mechanisms (4) are fixedly mounted on the upper end of the base (1); a round tube diameter detection feedback mechanism (5) is fixedly mounted on the bidirectional clamping mechanism (2); a round tube hardness detection feedback mechanism (6) is fixedly connected to the round tube diameter detection feedback mechanism (5); a single rotation angle control mechanism (7) is fixedly mounted on the bidirectional clamping mechanism (2); a cutting feed amount control mechanism (8) is fixedly mounted on the upper end of the base (1); and a PLC controller (9) is fixedly mounted on the upper end of the base (1) and is electrically connected to the bidirectional clamping mechanism (2), the rotating disc knife cutting mechanism (3), the limiting and stabilizing mechanism (4), the round tube diameter detection feedback mechanism (5), the round tube hardness detection feedback mechanism (6), the single rotation angle control mechanism (7) and the cutting feed amount control mechanism (8), respectively.

2. A metal building material cutting device according to claim 1, characterized in that: The bidirectional clamping mechanism (2) comprises two side plates (21) symmetrically fixedly connected to the upper end of the base (1); two electric push rods (22) are fixedly inserted into the side walls of the side plates (21); the movable ends of the two electric push rods (22) are fixedly connected to a clamping plate (23); the side walls of the clamping plates (23) are rotatably connected to a positioning plug (24); and a stepping motor (25) for driving the positioning plug (24) to rotate is fixedly mounted on the outer wall of one of the clamping plates (23).

3. The metal building material cutting equipment according to claim 1, characterized in that: The rotary disc knife cutting mechanism (3) comprises a support frame (31) fixedly mounted on the upper end of the base (1), a connecting frame (32) rotatably connected inside the support frame (31), a cutting machine (33) fixedly mounted inside the connecting frame (32), and a servo motor (34) for driving the connecting frame (32) to deflect fixedly mounted on the outer wall of the support frame (31).

4. The metal building material cutting equipment according to claim 1, characterized in that: The limiting and stabilizing mechanism (4) comprises a limiting ring (41) fixedly mounted on the upper end of the base (1), a plurality of electric telescopic rods (42) equidistantly fixedly sleeved on the limiting ring (41) are arranged in a ring-shaped distribution, and a moving end of the electric telescopic rod (42) located in the limiting ring (41) is fixedly connected to an extrusion roller (43).

5. The metal building material cutting equipment according to claim 2, characterized in that: The circular tube diameter detection feedback mechanism (5) comprises a diameter detection shell (51) fixedly connected to the upper end of the clamping plate (23); a lifting rod (52) is slidably sleeved through the upper and lower ends of the diameter detection shell (51); a resistance block (53) is fixedly connected to the lower end of the lifting rod (52); an upper end of the resistance block (53) and a lower end of the diameter detection shell (51) are fixedly connected to a compression spring (54) sleeved on the outside of the lifting rod (52); and a spring (54) is fixedly installed on one side of the inner wall of the diameter detection shell (51) parallel to the lifting rod (52). A diameter feedback resistor rod (55) is arranged in a row, the rod wall of the lifting rod (52) located in the diameter detection shell (51) is fixedly connected to a diameter feedback conductive contact piece (56) that is in electrical contact with the diameter feedback resistor rod (55), and a plurality of diameter feedback switches (57) arranged along the length direction of the lifting rod (52) are fixedly installed on the other side of the inner wall of the diameter detection shell (51), and a trigger protrusion (58) arranged corresponding to the position of the diameter feedback switch (57) is fixedly connected to the rod wall of the lifting rod (52) located in the diameter detection shell (51).

6. The metal building material cutting equipment according to claim 5, characterized in that: The round tube hardness detection feedback mechanism (6) comprises an L-shaped synchronous plate (61) fixedly connected to the upper end of the lifting rod (52); the lower end of the L-shaped synchronous plate (61) is fixedly connected to a hardness detection shell (62); the lower end of the hardness detection shell (62) is movably sleeved with a sliding rod (63); the lower end of the sliding rod (63) is fixedly connected to a detection steel ball (64); the upper end of the sliding rod (63) is fixedly connected to a magnetic fixing plate (65); the top of the inner wall of the hardness detection shell (62) is fixedly provided with a fixed electromagnetic block (66) magnetically connected to the magnetic fixing plate (65); and the top of the hardness detection shell (62) is fixedly sleeved with a laser rangefinder (67).

7. The metal building material cutting equipment according to claim 1, characterized in that: The single rotation angle control mechanism (7) comprises a control round shell (71), an electric connection block (72) is fixedly mounted on one side of the inner wall of the control round shell (71), a rotating shaft (73) is rotatably connected to the center of the inner wall of the control round shell (71), a driving motor (74) for driving the rotating shaft (73) to rotate is fixedly mounted on the outer wall of the control round shell (71), an extension rod (75) is fixedly connected to the shaft wall of the rotating shaft (73), and an arc-shaped conductive block (76) is fixedly connected to one end of the extension rod (75) away from the rotating shaft (73).

8. The metal building material cutting equipment according to claim 1, characterized in that: The cutting feed control mechanism (8) comprises a mounting shell (81), the upper side of the inner wall of the mounting shell (81) is fixedly connected to a plurality of guide slide bars (82) arranged in parallel, the plurality of guide slide bars (82) are slidably sleeved with a same force plate (83) on the outside, a plurality of compensation springs (84) sleeved on the outside of the guide slide bars (82) are fixedly connected to the opposite side of the force plate (83) and the mounting shell (81), a thrust permanent magnet plate (85) is fixedly connected to the side of the force plate (83) away from the compensation spring (84), and a thrust electromagnetic plate (85) arranged opposite to the thrust permanent magnet plate (85) is fixedly mounted on the inner wall of the mounting shell (81). 6), a transmission screw (87) arranged parallel to the guide slide bar (82) is rotatably connected to the lower side of the inner wall of the mounting shell (81), a feed motor (88) for driving the transmission screw (87) to rotate is fixedly mounted on the outer wall of the mounting shell (81), a pressing plate (89) is threadedly sleeved on the rod wall of the transmission screw (87), the upper end of the pressing plate (89) is set as a round head structure, a regulating switch (810) arranged corresponding to the position of the pressing plate (89) is fixedly mounted on the lower end of the force plate (83), and a termination switch (811) arranged opposite to the pressing plate (89) is fixedly mounted on one side of the inner wall of the mounting shell (81).

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