Section steel web cutting equipment

Abstract

The invention discloses profile steel web cutting equipment, and particularly relates to the field of cutting equipment, the profile steel web cutting equipment comprises a conveying mechanism and a cutting guide mechanism, the cutting guide mechanism is arranged at the end part of the conveying mechanism, the conveying mechanism is used for placing a workpiece, the cutting guide mechanism comprises a fixed seat, and a transmission ring is rotationally arranged on the fixed seat. The conveying mechanism and the workpiece positioning mechanism are arranged, a workpiece is conveyed through rotation of a conveying roller, then a positioning wheel is driven to move towards the workpiece through movement of the output end of a first linear driver, the workpiece is positioned in the horizontal direction through the positioning wheel, and the workpiece is located under a cutter; then the cutter is driven to do circular motion along the outer side of the workpiece to cut the workpiece, the workpiece can be automatically adjusted after the workpiece is conveyed to a designated position, generation and missing of a surface angle are avoided, defects cannot be generated, the precision of a segmented interface is guaranteed, and the joint connection strength of the workpiece and the overall performance of the structure are ensured.

Description

Technical Field

[0001] This invention relates to the field of cutting equipment technology, and more specifically, to a cutting equipment for the web of structural steel. Background Technology

[0002] Structural steel refers to steel with specific cross-sectional shapes and dimensions. Structural steel sections such as I-beams and H-beams, composed of webs and flanges, are widely used in building structures, bridges, machinery, towers, and other fields, serving as load-bearing components such as beams, columns, and supports. When designing irregularly shaped structures such as arched roofs and curved exterior walls that conform to architectural aesthetics and spatial functions, bent steel sections are required to achieve specific curvatures. To achieve engineering goals such as feasible transportation, safe hoisting, and precise installation of large, irregularly shaped structures, bent steel sections need to be cut into multiple segments using cutting equipment at precisely calculated segmentation points, and special node designs are used to ensure the overall structural performance after assembly.

[0003] The cutting equipment used in the prior art includes a conveying mechanism for conveying workpieces, a cutter is provided at the end of the conveying mechanism, a conveying roller is rotatably provided on the conveying mechanism, the workpiece is placed on the conveying roller, the conveying roller conveys the workpiece toward the cutter by rotating, when the workpiece is conveyed to the bottom of the cutter, the workpiece is positioned by a positioning mechanism, and then the cutter is driven to circle around the workpiece once, and the workpiece is cut by the cutter.

[0004] However, the existing technologies mentioned above still have shortcomings. The inherent curvature of the curved steel is incompatible with the geometric characteristics of the linear conveying mechanism, which causes uncontrollable lateral displacement and spatial orientation deviation of the workpiece during the conveying process. This geometric deviation will cause quality defects such as inaccurate cutting angle and contour distortion, resulting in the segment interface not being able to match accurately, which seriously affects the node connection strength and the overall structural performance. Summary of the Invention

[0005] The present invention provides a steel web cutting device, which aims to solve the following problem: Existing steel web cutting devices suffer from incompatibility between the inherent curvature of the curved steel and the geometric characteristics of the linear conveying mechanism, resulting in uncontrollable lateral displacement and spatial orientation deviation of the workpiece during the conveying process. This geometric deviation causes quality defects such as inaccurate cutting angle and contour distortion, resulting in the inability to accurately match the segmented interfaces, which seriously affects the node connection strength and the overall structural performance.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a steel web cutting device, comprising a conveying mechanism and a cutting guide mechanism, wherein the cutting guide mechanism is disposed at the end of the conveying mechanism, the conveying mechanism is used to place the workpiece, the cutting guide mechanism includes a fixed seat, a transmission ring is rotatably disposed on the fixed seat, a cutting mechanism is disposed on the transmission ring, the cutting mechanism includes a cutter, the transmission ring rotates on the fixed seat to drive the cutter to make circumferential motion along the workpiece; The conveying mechanism is equipped with a workpiece positioning mechanism, which includes multiple linear drivers. Each linear driver has a fixed rotary driver, and each rotary driver has a rotatable positioning wheel. The positioning wheel rolls with the workpiece, and two corresponding positioning wheels move close to each other to push the workpiece on the conveying mechanism, so that the end of the workpiece is always located at the center of the transmission ring.

[0007] In a preferred embodiment, a through hole is provided at the center of the positioning wheel, and two limiting plates are fixedly provided on the output end of the rotary driver two. The positioning wheel is located between the two limiting plates, and the output end of the rotary driver two is located in the through hole. Multiple pressure sensors are fixedly provided inside the positioning wheel, and the acquisition end of the pressure sensors is set towards the output end of the rotary driver two.

[0008] In a preferred embodiment, a posture adjustment mechanism is provided on the fixed base. The posture adjustment mechanism includes a vision recognition module, the acquisition end of which is set towards the workpiece on the conveying mechanism. The posture adjustment mechanism also includes a linear driver four, which is fixedly mounted on the fixed base. An expansion component is provided on the output end of the linear driver four, which is used to contact the end of the workpiece near the cutter.

[0009] In a preferred embodiment, the expansion assembly includes a connecting seat, which is fixedly mounted on the output end of the linear driver four. A rotating tooth one is rotatably mounted on the connecting seat, and a rotating driver three is fixedly mounted on the connecting seat. A rotating tooth two is fixedly mounted on the output end of the rotating driver three. The rotating tooth one and the rotating tooth two mesh with each other. A plurality of slide blocks are slidably mounted on the connecting seat, and a connecting shaft is fixedly mounted on each of the slide blocks. A sliding hole is opened on the rotating tooth one, and the connecting shaft is movably mounted in the sliding hole. A push plate is fixedly mounted on the slide block.

[0010] In a preferred embodiment, multiple slides are equally spaced on the connecting seat along the center of the first rotating tooth, and the rotation of the first rotating tooth is used to drive multiple push plates to move synchronously.

[0011] In a preferred embodiment, the cutting guide mechanism further includes two drive wheels, both of which are rotatably mounted on a fixed base. A plurality of auxiliary wheels are also rotatably mounted on the fixed base. The two drive wheels and the plurality of auxiliary wheels are arranged in a ring at equal intervals on the fixed base, and the drive wheels and auxiliary wheels are all rolled around the drive ring.

[0012] In a preferred embodiment, a power wheel is rotatably mounted on the fixed base, and the power wheel is fixedly mounted to the transmission wheel. A rotation driver is also fixedly mounted on the fixed base, and the output end of the rotation driver is used to drive the power wheel to rotate.

[0013] In a preferred embodiment, the cutting mechanism further includes a second linear driver, which is rotatably mounted on a transmission ring. A third linear driver is fixedly mounted on the output end of the second linear driver, and the cutter is fixedly mounted on the output end of the third linear driver.

[0014] In a preferred embodiment, a rotary driver four is fixedly disposed on the transmission ring, and a linear driver two is fixedly disposed on the output end of the rotary driver four.

[0015] In a preferred embodiment, the conveying mechanism includes a support frame on which a plurality of conveying rollers are rotatably mounted. Each of the multiple conveying rollers is fixedly mounted with a sprocket, and adjacent conveying rollers are connected by the same chain drive.

[0016] The beneficial effects of this invention are as follows: This invention features a conveying mechanism and a workpiece positioning mechanism. The workpiece is conveyed by rotating conveyor rollers, and then a positioning wheel is moved toward the workpiece by the output of a linear driver. The positioning wheel positions the workpiece horizontally, placing it directly below the cutter. The cutter then moves in a circular motion along the outer side of the workpiece to cut it. After the workpiece is conveyed to the designated position, it can be automatically adjusted to avoid defects such as missing angles. The precision of the segmented interfaces is guaranteed, ensuring the connection strength of the workpiece nodes and the overall structural performance.

[0017] This invention, by setting up an attitude adjustment mechanism, drives the rotation of the second rotating gear at the output end of the third rotating driver to rotate. The second rotating gear meshes with the first rotating gear, driving the first rotating gear to rotate. After the first rotating gear rotates, it drives the connecting shaft to slide in the sliding hole, achieving the effect of driving multiple push plates to expand synchronously. Since the workpiece has two flanges, after the multiple push plates expand outward, they contact the inner side of the flanges to position the end of the workpiece. The first linear driver is activated, and the positioning wheel pushes the workpiece. The end of the workpiece away from the cutter swings on the conveyor roller, achieving the effect of adjusting the attitude of the workpiece on the conveyor roller. This ensures that the cutting edge is perpendicular to the bending direction when cutting the workpiece, further improving the cutting quality. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a top view of the structure of the present invention.

[0020] Figure 3 This is a three-dimensional structural diagram of the cutting guide mechanism of the present invention.

[0021] Figure 4 This is a three-dimensional structural diagram of the power wheel of the present invention.

[0022] Figure 5 This is a three-dimensional structural diagram of the cutting mechanism of the present invention.

[0023] Figure 6 This is a three-dimensional schematic diagram of the workpiece positioning mechanism of the present invention.

[0024] Figure 7 This is a cross-sectional view of the positioning wheel of the present invention.

[0025] Figure 8 This is a schematic diagram of the main structure of the expansion component of the present invention.

[0026] Figure 9 This is a three-dimensional structural diagram of the expansion component of the present invention.

[0027] Figure 10 This is a three-dimensional structural diagram of the conveying mechanism of the present invention.

[0028] Figure 11 This is a three-dimensional structural diagram of the workpiece of the present invention.

[0029] The attached figures are labeled as follows: 1. Conveying mechanism; 11. Support frame; 12. Conveying roller; 2. Cutting guide mechanism; 21. Fixed seat; 22. Transmission wheel; 23. Auxiliary wheel; 24. Transmission ring; 25. Power wheel; 26. Rotary driver one; 3. Workpiece positioning mechanism; 31. Linear driver one; 32. Rotary driver two; 33. Positioning wheel; 331. Pressure sensor; 4. Cutting mechanism; 41. Linear driver two; 42. Linear driver three; 43. Cutter; 5. Posture adjustment mechanism; 51. Vision recognition module; 52. Linear driver four; 53. Expansion assembly; 531. Connecting seat; 532. Rotating gear one; 533. Rotating gear two; 534. Slide seat; 535. Connecting shaft; 536. Sliding hole; 537. Push plate; 6. Workpiece. Detailed Implementation

[0030] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0031] Refer to the instruction manual appendix Figure 1 and Figure 2A steel web cutting device includes a conveying mechanism 1 and a cutting guide mechanism 2. The cutting guide mechanism 2 is disposed at the end of the conveying mechanism 1. The conveying mechanism 1 is used to place the workpiece 6. The cutting guide mechanism 2 includes a fixed seat 21. A transmission ring 24 is rotatably disposed on the fixed seat 21. A cutting mechanism 4 is disposed on the transmission ring 24. The cutting mechanism 4 includes a cutter 43. The transmission ring 24 rotates on the fixed seat 21 to drive the cutter 43 to make a circular motion along the workpiece 6. The conveying mechanism 1 is equipped with a workpiece positioning mechanism 3, which includes multiple linear drivers 31. Each linear driver 31 has a fixed rotary driver 32 at its output end. A positioning wheel 33 is rotatably mounted on the output end of the rotary driver 32. The positioning wheel 33 rolls with the workpiece 6. Two corresponding positioning wheels 33 move close to each other to push the workpiece 6 on the conveying mechanism 1, so that the end of the workpiece 6 is always located at the center of the transmission ring 24.

[0032] It should be noted that, referring to Figure 10 The conveying mechanism 1 includes a support frame 11, on which multiple conveying rollers 12 are rotatably mounted. Each conveying roller 12 is fixedly equipped with a sprocket, and adjacent conveying rollers 12 are connected by the same chain drive. A motor is fixedly mounted on the support frame 11, and the output shaft of the motor is fixedly mounted to the conveying rollers 12. When the workpiece 6 is placed horizontally on the conveying rollers 12, the rotation of the motor output drives the multiple conveying rollers 12 to rotate synchronously, thereby conveying the workpiece 6.

[0033] It should also be noted that, referring to Figure 11 Workpiece 6 is the curved steel section to be processed; the cutter 43 is a plasma arc cutter, which is based on the principle of using a high-temperature plasma arc to melt the metal and cut it. As a mature existing technology, it will not be elaborated on here.

[0034] It should be further explained that, referring to Figure 6 Linear driver 31 is configured as a linear motor, and rotary driver 32 is fixedly mounted on the output end of the linear motor. Rotary driver 32 is also configured as a motor. The output end of linear driver 31 is used to drive rotary driver 32 to move along the width direction of support frame 11. Alternatively, a linear motor can be mounted on support frame 11 along the length direction of support frame 11, and linear driver 31 can be fixedly mounted on the linear motor, meaning that linear driver 31 can move along the length direction of support frame 11.

[0035] The specific implementation scenario is as follows: the initial state and position of the cutter 43 are as follows: Figure 3 As shown, refer to Figure 2The workpiece 6 is placed on the conveyor roller 12, and the rotary drive 4 is started. The rotation of the output end of the rotary drive 4 conveys the workpiece 6 toward the cutter 43. When the workpiece 6 is below the cutter 43, the rotary drive 4 is turned off, and the linear drive 1 31 is started. The output end of the linear drive 1 31 drives the positioning wheel 33 to move toward the workpiece 6. When all the positioning wheels 33 are in contact with the workpiece 6, it means that the multiple positioning wheels 33 cooperate to limit the workpiece 6 along the width direction of the support frame 11. Then the linear drive 1 31 is started again, so that the multiple rotary drives 2 32 located on the same side move synchronously, so as to adjust the workpiece 6 to move along the width direction of the support frame 11, that is, to adjust the horizontal position of the workpiece 6 on the support frame 11, ensuring that the end of the workpiece 6 near the cutter 43 is directly below the cutter 43. Then the cutter 43 is driven to circle around the workpiece 6 to achieve the effect of cutting the workpiece 6.

[0036] Compared with the existing technology, by setting up a conveying mechanism 1 and a workpiece positioning mechanism 3, the workpiece 6 is conveyed by rotating the conveying roller 12, and then the positioning wheel 33 is moved towards the workpiece 6 by the moving drive of the linear driver 31. The positioning wheel 33 positions the workpiece 6 in the horizontal direction, so that the workpiece 6 is directly below the cutter 43. Then the cutter 43 is driven to make a circular motion along the outside of the workpiece 6 to cut the workpiece 6. After the workpiece 6 is conveyed to the designated position, the workpiece 6 can be automatically adjusted to avoid defects. The missing angle of the surface will not cause defects. The segmented interface accuracy is guaranteed, ensuring the connection strength of the workpiece node and the overall structural performance.

[0037] Refer to the instruction manual appendix Figure 6 and Figure 7 After the positioning wheel 33 contacts the workpiece 6, in order to make more precise horizontal adjustment and efficient conveying of the workpiece 6, specifically, a through hole is opened at the center of the positioning wheel 33, two limit plates are fixedly installed on the output end of the rotary driver 32, the positioning wheel 33 is located between the two limit plates, the output end of the rotary driver 32 is located in the through hole, and multiple pressure sensors 331 are fixedly installed inside the positioning wheel 33, with the collection end of the pressure sensor 331 facing the output end of the rotary driver 32.

[0038] It should be noted that a protrusion is fixedly provided on the output end of the rotary driver 32, and a groove is provided on the inner wall of the through hole, with the protrusion slidably disposed in the groove.

[0039] It should also be noted that after workpiece 6 is placed on conveyor roller 12, linear driver 1 31 is activated. The moving drive positioning wheel 33 at the output end of linear driver 1 31 contacts workpiece 6. When positioning wheel 33 contacts workpiece 6, the acquisition end of pressure sensor 331 contacts the output end of rotary driver 2 32. When the pressure value acquired by the acquisition end of pressure sensor 331 is 5N, it indicates that the contact point between positioning wheel 33 and workpiece 6 is optimal. Then, by activating rotary driver 2 32 and rotary driver 4, the conveyor roller 12 rotates to transport workpiece 6, and the rotary drive... The rotation of the output end of the second actuator 32 drives the positioning wheel 33 to rotate and assist in conveying the workpiece 6, which can further improve the conveying efficiency of the workpiece 6 and prevent the workpiece 6 from shifting horizontally. During the conveying process of the workpiece 6, the pressure sensor 331 obtains the contact force between itself and the workpiece 6. The output end of the linear actuator 31 dynamically adjusts the distance between the positioning wheel 33 and the workpiece 6. After the workpiece 6 moves to the designated position, the horizontal position of the workpiece 6 on the support frame 11 is further adjusted by the movement of the output end of the linear actuator 31, so that the workpiece 6 is located directly below the cutter 43.

[0040] Refer to the instruction manual appendix Figure 8 and Figure 9To maximize the load-bearing capacity and uniform stress distribution of the bent workpiece 6, achieve tight fit of the segmented component interfaces and uniform transmission of high-strength bolt preload, and improve the fatigue life and overall stability of the structure under long-term load, the cutting edge needs to be perpendicular to the bending direction. However, in the above scheme, the cutter 43 performs circular motion to cut the workpiece 6, which cannot achieve a cutting edge perpendicular to the bending direction. To solve the above problem, specifically, a posture adjustment mechanism 5 is provided on the fixed base 21. The posture adjustment mechanism 5 includes a vision recognition module 51, the acquisition end of which is set towards the workpiece 6 on the conveying mechanism 1. The posture adjustment mechanism 5 also includes a linear driver 4 52, which is fixedly mounted on the fixed base 21. An expansion component 53 is provided on the output end of the linear driver 4 52, which is used to contact the end of the workpiece 6 near the cutter 43. The expansion assembly 53 includes a connecting seat 531, which is fixedly mounted on the output end of the linear actuator 4 52. A rotating gear 1 532 is rotatably mounted on the connecting seat 531. A rotating actuator 3 is fixedly mounted on the connecting seat 531, and a rotating gear 2 533 is fixedly mounted on the output end of the rotating actuator 3. The rotating gear 1 532 and the rotating gear 2 533 mesh with each other. Multiple slide blocks 534 are slidably mounted on the connecting seat 531, and a connecting shaft 535 is fixedly mounted on each slide block 534. A sliding hole 536 is formed in the rotating gear 1 532, and the connecting shaft 535 is movably mounted within the sliding hole 536. A push plate 537 is fixedly mounted on each slide block 534. The multiple slide blocks 534 are evenly spaced on the connecting seat 531 along the center of the rotating gear 1 532. The rotation of the rotating gear 1 532 drives the multiple push plates 537 to move synchronously.

[0041] It should be noted that the acquisition end of the vision recognition module 51 is positioned facing the workpiece 6 on the conveyor roller 12, the linear driver 4 52 is a linear motor, and the rotary driver 3 is a motor. The acquisition end of the vision recognition module 51 is used to identify the posture of the workpiece 6 on the conveyor roller 12. By visually recognizing the angle between the workpiece 6 and the conveyor roller 12, the posture of the workpiece 6 on the conveyor roller 12 can be determined, thereby ensuring that the cut is perpendicular to the bending direction of the workpiece 6 during cutting. As a mature existing technology, vision recognition technology will not be elaborated further here.

[0042] It should also be noted that after the workpiece 6 moves directly below the cutter 43, the linear actuator 4 52 is activated. The output of the linear actuator 4 52 drives the connecting seat 531 to move vertically downward. After the connecting seat 531 moves to the designated position, the rotary actuator 3 is activated. The output of the rotary actuator 3 drives the rotary gear 2 533 to rotate. The rotary gear 2 533 meshes with the rotary gear 1 532, driving the rotary gear 1 532 to rotate. After the rotary gear 1 532 rotates, it drives the connecting shaft 535 to slide within the sliding hole 536, thereby driving multiple push plates 53. 7. The effect of synchronous expansion: Since workpiece 6 has two flanges, after the multiple push plates 537 expand outward, they contact the inner side of the flanges to position the end of workpiece 6. This is similar to the fulcrum position of the lever principle. At this time, the linear driver 31 is activated, and the positioning wheel 33 pushes workpiece 6. Since one end of workpiece 6 has been positioned, the end of workpiece 6 away from the cutter 43 swings on the conveyor roller 12, thereby adjusting the posture of workpiece 6 on the conveyor roller 12. This ensures that the cutting edge is perpendicular to the bending direction when cutting workpiece 6, further improving the cutting quality.

[0043] It should be further explained that the multiple push plates 537 expand outwards simultaneously, that is, the diameter of the circle formed by the push plates 537 gradually increases. In the initial state, this makes it easy to position the push plates 537 between the two flanges of the workpiece 6, which facilitates the attitude adjustment of the workpiece 6.

[0044] Refer to the instruction manual appendix Figure 3 , Figure 4 To facilitate the cutting of workpiece 6 by driving the cutter 43 to rotate along the workpiece 6, the cutting guide mechanism 2 specifically includes two transmission wheels 22, both of which are rotatably mounted on a fixed base 21. Multiple auxiliary wheels 23 are also rotatably mounted on the fixed base 21. The two transmission wheels 22 and the multiple auxiliary wheels 23 are arranged in a ring at equal intervals on the fixed base 21, and both the transmission wheels 22 and the auxiliary wheels 23 are rolled along with the transmission ring 24. A power wheel 25 is rotatably mounted on the fixed base 21, and the power wheel 25 is fixedly mounted to the transmission wheels 22. A rotation driver 26 is also fixedly mounted on the fixed base 21, and the output end of the rotation driver 26 is used to drive the power wheel 25 to rotate.

[0045] It should be noted that the rotary driver 26 is a motor, and a worm gear is fixedly installed on the output end of the motor. A connecting wheel is rotatably installed on the fixed base 21, and a worm wheel is fixedly installed on the connecting wheel. The worm gear and the worm wheel mesh with each other. The connecting wheel and the power wheel 25 are connected by the same chain drive. The rotation of the output end of the rotary driver 26 is used to drive the power wheel 25 to rotate. The rotation of the power wheel 25 is used to drive the transmission wheel 22 to rotate. The rotation of the transmission wheel 22 then causes the transmission ring 24 to rotate. When the transmission ring 24 rotates, it drives the cutter 43 to perform a circular motion.

[0046] Refer to the instruction manual appendix Figure 3 and Figure 5 To facilitate the movement of the cutter 43 and ensure cutting quality, the distance between the output end of the cutter 43 and the workpiece 6 can be adjusted when cutting the flange plate of the workpiece 6. Specifically, the cutting mechanism 4 also includes a linear driver 2 41, which is rotatably mounted on the transmission ring 24. A linear driver 3 42 is fixedly mounted on the output end of the linear driver 2 41, and the cutter 43 is fixedly mounted on the output end of the linear driver 3 42. A rotary driver 4 is fixedly mounted on the transmission ring 24, and the linear driver 2 41 is fixedly mounted on the output end of the rotary driver 4.

[0047] It should be noted that linear driver 2 41 is a linear motor, linear driver 3 42 is fixedly mounted on the output end of linear driver 2 41, and linear driver 3 42 is also a linear motor. Cutter 43 is fixedly mounted on the output end of linear driver 3 42, and rotary driver 4 is a motor. Linear driver 2 41 is fixedly mounted on the output end of the motor.

[0048] It should also be noted that starting the rotary driver four can drive the cutter 43 to adjust its angle, and starting the linear driver two 41 and the linear driver three 42 can adjust the vertical movement of the cutter 43.

[0049] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. A shape steel web cutting apparatus, characterized by, Including conveying mechanism (1) and cutting guide mechanism (2), the cutting guide mechanism (2) is arranged at the end of conveying mechanism (1), the conveying mechanism (1) is used to place workpiece (6), the cutting guide mechanism (2) includes fixed seat (21), the fixed seat (21) is provided with transmission ring (24) rotationally, the transmission ring (24) is provided with cutting mechanism (4), the cutting mechanism (4) includes cutter (43), the transmission ring (24) rotates on fixed seat (21) for driving cutter (43) to make circular motion along workpiece (6); The conveying mechanism (1) is provided with workpiece positioning mechanism (3), the workpiece positioning mechanism (3) includes multiple linear actuators one (31), the output end of multiple linear actuators one (31) is fixedly provided with rotating actuator two (32), the output end of rotating actuator two (32) is rotatably provided with positioning wheel (33), the positioning wheel (33) is rotatably arranged between the workpiece (6), and the corresponding two positioning wheels (33) are close to each other to push the workpiece (6) on the conveying mechanism (1), so that the end of the workpiece (6) is always located at the center of the transmission ring (24).

2. A steel web cutting apparatus as claimed in claim 1, wherein: The center of the positioning wheel (33) is provided with a through hole, the output end of the rotating actuator two (32) is fixedly provided with two limiting plates, the positioning wheel (33) is located between the two limiting plates, the output end of the rotating actuator two (32) is located in the through hole, a plurality of pressure sensors (331) are fixedly arranged in the positioning wheel (33), and the collection end of the pressure sensor (331) is arranged towards the output end of the rotating actuator two (32).

3. A steel web cutting apparatus as claimed in claim 2, wherein: The fixed seat (21) is provided with posture adjusting mechanism (5), the posture adjusting mechanism (5) includes visual identification module (51), the collection end of the visual identification module (51) is arranged towards the workpiece (6) on the conveying mechanism (1), the posture adjusting mechanism (5) further includes linear actuator four (52), the linear actuator four (52) is fixedly arranged on the fixed seat (21), the output end of the linear actuator four (52) is provided with expansion assembly (53), and the expansion assembly (53) is used to contact the end of the workpiece (6) close to the cutter (43).

4. A steel web cutting apparatus as claimed in claim 3, wherein: The expansion assembly (53) comprises a connecting seat (531) fixedly arranged on the output end of the linear driver four (52), a rotating tooth one (532) is rotationally arranged on the connecting seat (531), a rotating driver three is fixedly arranged on the connecting seat (531), a rotating tooth two (533) is fixedly arranged on the output end of the rotating driver three, the rotating tooth one (532) is engaged with the rotating tooth two (533), a plurality of sliding seats (534) are slidingly arranged on the connecting seat (531), a connecting shaft (535) is fixedly arranged on each of the plurality of sliding seats (534), a sliding hole (536) is formed in the rotating tooth one (532), and the connecting shaft (535) is movably arranged in the sliding hole (536).

5. A steel web cutting apparatus as claimed in claim 4, wherein: The plurality of sliding seats (534) are equidistantly arranged on the connecting seat (531) along the center of the rotating tooth one (532), and rotation of the rotating tooth one (532) is used to drive the plurality of push plates (537) to move synchronously.

6. A steel web cutting apparatus as claimed in claim 5, wherein: The cutting guide mechanism (2) further comprises two transmission wheels (22), both of which are rotationally arranged on the fixed seat (21), a plurality of auxiliary wheels (23) are also rotationally arranged on the fixed seat (21), both of the transmission wheels (22) and the plurality of auxiliary wheels (23) are annularly and equidistantly arranged on the fixed seat (21), and both of the transmission wheel (22) and the auxiliary wheel (23) are rollingly arranged with the transmission ring (24).

7. A steel web cutting apparatus as claimed in claim 6, wherein: The fixed seat (21) is rotationally arranged with a power wheel (25), the power wheel (25) is fixedly arranged with the transmission wheel (22), the fixed seat (21) is also fixedly arranged with a rotating driver one (26), and the output end of the rotating driver one (26) is used to drive the power wheel (25) to rotate.

8. A steel web cutting apparatus as claimed in claim 7, wherein: The cutting mechanism (4) further comprises a linear driver two (41), the linear driver two (41) is rotationally arranged on the transmission ring (24), a linear driver three (42) is fixedly arranged on the output end of the linear driver two (41), and the cutter (43) is fixedly arranged on the output end of the linear driver three (42).

9. A steel web cutting apparatus as claimed in claim 8, wherein: The transmission ring (24) is fixedly arranged with a rotating driver four, and the linear driver two (41) is fixedly arranged on the output end of the rotating driver four.

10. A steel web cutting apparatus as claimed in claim 9, wherein: The conveying mechanism (1) comprises a support frame (11), a plurality of conveying rollers (12) are rotationally arranged on the support frame (11), a sprocket is fixedly arranged on each of the plurality of conveying rollers (12), and adjacent two conveying rollers (12) are drivingly connected through a same chain.

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