An octagonal beveling device for H-beams

Abstract

This invention provides an octagonal beveling device for H-beams, comprising a conveying mechanism, a main support, and a milling cutter holder. The octagonal beveling device provides that, through the movement of the milling cutter holder along a second direction on the upper or lower frame, causes each limiting wheel and pressing wheel to abut against the inner and outer sides of the upper and lower flanges, thereby constraining and limiting the relative position of the H-beam and the milling cutter holder in both vertical and horizontal directions. When the specifications of the H-beam change, only the vertical movement of the upper and lower frames and the horizontal movement of the milling cutter holder need to be driven to automatically adapt all milling cutters and limiting wheels to the new web height and flange width, eliminating the need for manual adjustments. Ultimately, during the continuous conveying of the H-beam, four sets of milling cutter holders simultaneously beveling eight edges on the upper and lower sides of the two flanges, achieving efficient and flexible synchronous octagonal beveling.

Description

Technical Field

[0001] This invention belongs to the technical field of H-beam processing equipment, specifically relating to an octagonal chamfering device for H-beams. Background Technology

[0002] In the construction and development of marine engineering equipment and facilities in my country, H-beams have been widely used as a key structural material. To ensure their long-term safety, durability, and maintainability in harsh marine environments such as strong corrosion and high humidity, relevant standards have put forward clear and specific requirements for the edge treatment of H-beams, especially emphasizing that the surface coating must be able to be uniformly applied and have sufficient adhesion. Therefore, the corners of the two flanges of the H-beams need to be chamfered to eliminate the adverse effects of sharp edges on the continuity of the coating.

[0003] Currently, although some automatic beveling equipment has appeared on the market, it still has significant shortcomings in practical applications. Due to the diverse specifications and dimensions of H-beams, existing equipment requires scanning the shape of the H-beam and adjusting the spatial position of each milling cutter according to different specifications. When frequently switching between different specifications of H-beams for processing, operators have to repeatedly adjust multiple milling cutters, a cumbersome and complex process that severely impacts processing efficiency and ease of use, making it difficult to meet the demands of efficient and flexible production. Summary of the Invention

[0004] This invention provides an octagonal chamfering device for H-beams, which aims to solve the problem in the prior art where chamfering devices for H-beams require repeated adjustments of multiple milling cutters and are cumbersome and complicated to operate due to changes in H-beam specifications.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: to provide an octagonal beveling device for H-beams, comprising: A directional conveying mechanism for conveying H-beams along a first direction; Two sets of main machine bases are respectively set on both sides of the directional conveying mechanism, and an upper frame and a lower frame are installed on the main machine bases; Two sets of milling cutter holders are installed on the upper frame and the lower frame, and the milling cutter holders are rotatably equipped with limit wheels and extrusion wheels. The extrusion wheels on the upper frame and the extrusion wheels on the lower frame are vertically corresponding. The milling cutter holder has a degree of freedom to move in the second direction, so that the limiting wheel abuts against the inner or outer side of the H-beam flange; The milling cutter holder on the upper frame and the milling cutter holder on the lower frame have the freedom to move relatively closer or further apart in the vertical direction, so that the two corresponding extrusion wheels abut against the upper and lower sides of the flange respectively.

[0006] In one possible implementation, the milling cutter holder includes a movable seat, which is movably disposed on both the upper frame and the lower frame along a second direction. A mounting seat is slidably disposed on the movable seat along a vertical direction. The limiting wheel and the extrusion wheel are both mounted on the corresponding mounting seats, and a first pushing member for pushing the mounting seat to slide is fixedly mounted on the movable seat.

[0007] In one possible implementation, the lower frame is fixedly mounted on the main unit, and the upper frame on the main unit has a degree of freedom to adjust its position in the vertical direction.

[0008] In one possible implementation, the directional conveying mechanism 1 includes a plurality of fixed units spaced apart along a first direction, the fixed units comprising: Fixture; The support roller is rotatably mounted on the fixed frame and is used to support the H-beam. The extrusion roller is rotatably mounted on the fixed frame and located above the support roller. The position of the extrusion roller on the fixed frame has a degree of freedom to be adjusted in the vertical direction. A guiding assembly, mounted on the fixed frame, is used to guide the H-beam to position on the support roller along a second direction.

[0009] In one possible implementation, the guiding component includes: The guide wheel is rotatably mounted on the fixed frame; A movable block is slidably mounted on the fixed frame along the second direction, and a top-tightening wheel is rotatably mounted on the movable block; The second pusher is fixedly installed on the fixed frame. The drive end of the second pusher is connected to the moving block to push the moving block to move closer to the guide wheel.

[0010] In one possible implementation, a first sensor for monitoring the position of the H-beam is installed on the upper frame and the lower frame. The first sensor is electrically connected to a controller, which is configured to: When the first sensor detects that the H-beam has moved to the point where its vertical projection is located on the mounting base, the controller controls the first pusher to operate and push the mounting base to move closer to the H-beam.

[0011] In one possible implementation, a third pushing member for moving the movable seat on the upper frame or the lower frame is installed on both the upper frame and the lower frame, and a second sensor for monitoring the position of the H-beam is installed on the mounting base, the second sensor being electrically connected to the controller; The controller is configured to: When the second sensor detects that the extrusion wheel on the mounting base abuts against the H-beam, the controller controls the third pusher to push the movable seat toward the corresponding flange on the H-beam.

[0012] In one possible implementation, a plurality of limiting wheels and a plurality of extrusion wheels are mounted on a single mounting base. A milling cutter is rotatably mounted on the mounting base. Along the conveying direction of the H-beam, extrusion wheels are provided on both sides of the milling cutter. When the second sensor detects the H-beam, the end of the H-beam is located on the limiting wheel and the extrusion wheel in front of the milling cutter.

[0013] In one possible implementation, the controller is further configured to: When the first sensor detects that the state of the H-beam has switched to the state of not detecting the H-beam, a delayed retraction procedure is triggered. The delayed retraction procedure is configured to issue retraction commands to the first pusher and the third pusher sequentially after a predetermined time threshold. The predetermined time threshold is set as the time required from when the first sensor switches to the undetected state until the end of the H-beam is removed from the milling cutter and still simultaneously abuts against the limiting wheel and the extrusion wheel.

[0014] In one possible implementation, the position of the limiting wheel on the mounting base has a degree of freedom that can be adjusted in a second direction, and the mounting base is threadedly connected to a push rod for preventing the limiting wheel from moving in the second direction.

[0015] Compared with the prior art, the H-beam octagonal chamfering device proposed in this application, during specific operation, involves a directional conveying mechanism continuously conveying H-beams along a first direction, with the webs arranged horizontally, allowing them to pass sequentially between two sets of main support bases. An upper frame and a lower frame are respectively mounted vertically on the two sets of main support bases, and the upper and lower frames can be positioned relatively close or far apart on the main support bases to accommodate H-beams with different flange widths. On each upper and lower frame, two sets of milling cutter holders are movably arranged along a second direction, and each set of milling cutter holders is rotatably mounted with limit wheels. When the H-beam enters the workstation, the pressing roller at the bottom of the milling cutter holder on the upper frame abuts against the upper side of the upper flange from above, and the pressing roller at the top of the milling cutter holder on the lower frame abuts against the lower side of the lower flange from below. Then, the milling cutter holder moves along the second direction on the upper or lower frame, so that the limiting rollers corresponding to the two milling cutter holders on the upper frame abut against the inner and outer sides of the upper flange, and the limiting rollers corresponding to the two milling cutter holders on the lower frame abut against the inner and outer sides of the lower flange, thereby constraining and limiting the relative position of the H-beam and the milling cutter holder in the vertical and horizontal directions.

[0016] Under this stable constraint, the milling cutters mounted on the milling cutter holder can be aligned with the edge to be machined on the flange. Since the extrusion roller and the limit roller move together with the milling cutter holder, and the height of the upper and lower frames is adjustable, when the H-beam specifications change, only the vertical movement of the upper and lower frames and the horizontal movement of the milling cutter holder need to be driven to automatically adapt all the milling cutters to the new web height and flange width, without the need for operators to adjust them one by one. Finally, during the continuous conveying of the H-beam, the four sets of milling cutter holders simultaneously perform chamfering on all eight edges of the upper and lower sides of the two flanges, achieving efficient and flexible synchronous chamfering of all eight sides. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the H-beam octagonal chamfering device provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the main unit provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the lower frame provided in an embodiment of the present invention; Figure 4 A schematic diagram of the mounting structure of the first and third pushers provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the directional conveying mechanism provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the alignment component provided in an embodiment of the present invention; Figure 7 A simplified block diagram of the control system provided in an embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures: 1. Directional conveying mechanism; 11. Fixed frame; 12. Support roller; 13. Extrusion roller; 14. Guide assembly; 141. Guide wheel; 142. Moving block; 143. Top clamping wheel; 144. Second pusher; 2. Main machine base; 21. Upper frame; 22. Lower frame; 3. Milling cutter holder; 31. Moving seat; 32. Mounting seat; 321. Limiting wheel; 322. Extrusion roller; 323. Milling cutter; 33. First pusher; 34. Third pusher; 35. Top rod. Detailed Implementation

[0019] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0020] Please refer to the following: Figures 1 to 6The octagonal beveling device for H-beams provided by the present invention will now be described. The octagonal beveling device for H-beams includes a directional conveying mechanism 1, a main base 2, and a milling cutter holder 3. A directional conveying mechanism 1 is used to convey H-beams along a first direction. Two main machine bases 2 are respectively set on both sides of the directional conveying mechanism 1. An upper frame 21 and a lower frame 22 are installed on the main machine bases 2. Two sets of milling cutter holders 3 are installed on the upper frame 21 and the lower frame 22. Limiting wheels 321 and pressing wheels 322 are rotatably set on the milling cutter holders 3. The pressing wheels 322 on the upper frame 21 and the pressing wheels 322 on the lower frame 22 are vertically corresponding. The milling cutter holders 3 have the freedom to move along a second direction so that the limiting wheels 321 abut against the inner or outer side of the flange of the H-beam. The milling cutter holders 3 on the upper frame 21 and the lower frame 22 have the freedom to move relatively closer or further away in the vertical direction so that the two vertically corresponding pressing wheels 322 abut against the upper and lower sides of the flange respectively.

[0021] Compared with the prior art, the H-beam octagonal beveling device provided in this embodiment, during specific operation, involves the directional conveying mechanism 1 continuously conveying H-beams along a first direction, with the webs arranged horizontally, allowing them to pass sequentially between two sets of main support bases 2. An upper frame 21 and a lower frame 22 are respectively installed vertically on the two sets of main support bases 2, and the upper and lower frames 21 can be positioned relatively close or far apart on the main support bases 2 to accommodate H-beams with different flange widths. On each upper frame 21 and lower frame 22, two sets of milling cutter holders 3 are movably arranged along a second direction, and each set of milling cutter holders 3 is rotatably mounted with a limit wheel 321. When the H-beam enters the workstation, the extrusion roller 322 at the bottom of the milling cutter holder 3 on the upper frame 21 abuts against the upper side of the upper flange from the top, and the extrusion roller 322 at the top of the milling cutter holder 3 on the lower frame 22 abuts against the lower side of the lower flange from the bottom. Then, the milling cutter holder 3 moves along the second direction on the upper frame 21 or the lower frame 22, so that the limiting rollers 321 corresponding to the two milling cutter holders 3 on the upper frame 21 abut against the inner and outer sides of the upper side of the flange, and the limiting rollers 321 corresponding to the two milling cutter holders 3 on the lower frame 22 abut against the inner and outer sides of the lower side of the flange, thereby constraining and limiting the relative position of the H-beam and the milling cutter holder 3 in the vertical and horizontal directions.

[0022] Under this stable constraint, the milling cutters 323 mounted on the milling cutter holder 3 can be aligned with the edge to be processed on the flange. Since the extrusion roller 322 and the limiting roller 321 both move together with the milling cutter holder 3, and the heights of the upper frame 21 and the lower frame 22 are adjustable, when the H-beam specifications change, only the vertical movement of the upper frame 21 and the lower frame 22 and the horizontal movement of the milling cutter holder 3 need to be driven to allow all the milling cutters 323 to automatically adapt to the new web height and flange width, without the need for operators to adjust them one by one. Finally, during the continuous conveying of the H-beam, the four sets of milling cutter holders 3 simultaneously perform chamfering on the upper and lower sides of the two flanges, a total of eight edges, achieving efficient and flexible synchronous chamfering of eight sides.

[0023] Specifically, in this embodiment, the first direction and the second direction are both horizontal and perpendicular to each other.

[0024] In some embodiments, the milling cutter holder 3 may be adopted as follows: Figure 2 , Figure 3 and Figure 4 The structure shown. See also... Figure 2 , Figure 3 and Figure 4 The milling cutter holder 3 includes a movable seat 31. The upper frame 21 and the lower frame 22 are both movably provided with movable seats 31 along the second direction. The movable seat 31 is slidably provided with a mounting seat 32 along the vertical direction. The limiting wheel 321 and the pressing wheel 322 are both installed on the corresponding mounting seats 32. The movable seat 31 is fixedly installed with a first pushing member 33 for pushing the mounting seat 32 to slide.

[0025] In a further optimized embodiment of the present invention, the milling cutter holder 3 adopts a two-stage adjustable structure design. Specifically, a movable seat 31 is movably arranged along a second direction on both the upper frame 21 and the lower frame 22. The movable seat 31 can be adjusted in the horizontal direction to accommodate the web height and flange thickness of different specifications of H-beams. A mounting seat 32 is slidably arranged on the movable seat 31 in the vertical direction. The limiting wheel 321 and the pressing wheel 322 are both mounted on the corresponding mounting seat 32. At the same time, a first pushing member 33 for pushing the mounting seat 32 to slide in the vertical direction is fixedly installed on the movable seat 31. With the above structure, the relative approach or distance movement between the upper frame 21 and the lower frame 22 is only used as a coarse adjustment means to initially adapt to the approximate size range of the H-beams.

[0026] After the H-beam enters the workstation, the mounting seat 32 on the movable seat 31 moves upward or downward under the push of the first pusher 33, so that the extrusion rollers 322 on the upper frame 21 and the lower frame 22 respectively abut against the upper and lower sides of the flange. Subsequently, the two movable seats 31 on the same upper frame 21 or the same lower frame 22 move towards each other in a second direction, so that the corresponding limiting wheels 321 abut against the inner and outer sides of the flange respectively. During this process, the precise linkage between the movable seat 31 and the mounting seat 32 achieves fine limiting and constraint of the relative position of the H-beam and the milling cutter 323, thereby ensuring that the milling cutter 323 can accurately align with the eight edges to be processed on the flange. When the specifications of the H-beam change, self-adaptation can be achieved simply by adjusting the horizontal position of the movable seat 31 and the vertical position driven by the first pusher 33, without having to repeat the coarse adjustment operation between the upper frame 21 and the lower frame 22, further improving the convenience of specification switching and processing efficiency.

[0027] Specifically, in this embodiment, in the initial state, the two movable seats 31 located on the same upper frame 21 and lower frame 22 are relatively far apart. When the H-beam passes by, the milling cutters 323 on the two movable seats 31 are respectively located on both sides of the corresponding flange of the H-beam. The milling cutters 323 on the two mounting seats 32 on the same upper frame 21 are used to chamfer the two corners of the upper side of the same flange. The milling cutters 323 on the two mounting seats 32 on the same lower frame 22 are used to chamfer the two corners of the lower side of the same flange.

[0028] In some embodiments, the aforementioned host base 2 may adopt the following... Figure 2 , Figure 3 The structure shown. See also... Figure 2 , Figure 3 The lower frame 22 is fixedly mounted on the main base 2, while the upper frame 21 has a vertically adjustable position on the main base 2. The assembly relationship between the main base 2 and the upper and lower frames 22 employs a differentiated design. Specifically, the lower frame 22 is fixedly mounted on the main base 2, and its installation height is adapted to the conveying plane of the directional conveying mechanism 1, thereby ensuring that when the H-beam enters the processing station, the lower edge of the flange can accurately fall within the working range of each set of milling cutter holders 3 on the lower frame 22. The upper frame 21, on the other hand, has a vertically adjustable position on the main base 2, allowing it to move closer to or further away from the lower frame 22. When switching between different specifications of H-beams, since the height of the lower frame 22 is fixedly matched with the conveying mechanism, the operator or control system only needs to adjust the vertical position of the upper frame 21 with a single degree of freedom to accommodate H-beams with different flange widths.

[0029] By fixing the lower frame 22 and providing only the upper frame 21 with vertical adjustment functionality, this equipment achieves a simplified and efficient coarse adjustment mechanism during specification switching. Compared to the traditional solution where both the upper and lower frames 22 need adjustment, this design significantly reduces the number of adjustment steps and drive components. During operation, the directional conveying mechanism 1 continuously feeds the H-beams into the processing station, and the fixed-height lower frame 22 always provides a stable support reference for the lower edge of the flanges. No adjustment is needed when the incoming material specifications change slightly; when the specifications change significantly, only the upper frame 21 needs to be driven up and down to the appropriate position, ensuring that the extrusion rollers 322 on the upper frame 21 accurately abut against the upper edges of both flanges. Simultaneously, with the secondary fine adjustment of the moving seat 31 and the mounting seat 32, the chamfering preparation for all eight edges can be completed. This design significantly shortens the equipment adjustment time during specification switching, further improving processing efficiency and ease of operation.

[0030] Preferably, in this embodiment, the positions of the two main support bases 2 relative to the directional conveying mechanism 1 have a degree of freedom that can be adjusted along the second direction. Specifically, when processing H-beams of different specifications, the conveying gap width between the two main support bases 2 can be adjusted by driving them closer or further apart along the second direction, thus accommodating the smooth passage of steel sections with different web heights. This design allows the equipment to directly adapt to the overall spacing at the main support base 2 level when dealing with H-beams with significant width differences, without relying on coarse adjustments of the upper frame 21 and lower frame 22 or horizontal adjustments of the moving base 31, further enhancing the equipment's compatibility and adjustment flexibility for steel sections of different specifications.

[0031] Specifically, in this embodiment, the upper frame 21 is slidably mounted on the main unit 2 via the connection direction of the slider and the guide rail. A lead screw is rotatably mounted on the main unit 2, and a threaded sleeve that is threadedly connected to the lead screw is fixedly mounted on the upper frame 21. The lead screw is driven to rotate by a synchronous motor, thereby realizing the up and down movement of the upper frame 21 on the main unit 2.

[0032] Specifically, in this embodiment, a base is fixedly installed on the ground, and two main unit seats 2 are installed on the base. A rack is fixedly installed on the base, and a gear is rotatably installed on the main unit seat 2 that meshes with the rack. The gear is driven to rotate by a motor to adjust the position of the main unit seat 2.

[0033] In some embodiments, the directional conveying mechanism 1 described above may employ, for example... Figure 1 , Figure 5 and Figure 6 The structure shown. See also... Figure 1 , Figure 5 and Figure 6The directional conveying mechanism 1 includes multiple fixed units spaced apart along a first direction. Each fixed unit includes a fixed frame 11, a support roller 12, a pressing roller 13, and a guiding assembly 14. The support roller 12 is rotatably mounted on the fixed frame 11 to support the H-beam. The pressing roller 13 is rotatably mounted on the fixed frame 11 and located above the support roller 12. The pressing roller 13 has a degree of freedom in vertical adjustment on the fixed frame 11. The guiding assembly 14 is mounted on the fixed frame 11 to guide the position of the H-beam along the second direction on the support roller 12. The directional conveying mechanism 1 adopts a multi-component collaborative design to ensure the stability of the H-beam's posture and the accuracy of its position during conveying. Specifically, the directional conveying mechanism 1 includes multiple fixed frames 11 spaced apart along the first direction. Each fixed frame 11 has a support roller 12 rotatably mounted on it to support the H-beam. A pressing roller 13 is also rotatably mounted on the fixed frame 11 above the support roller 12, and the pressing roller 13 has a degree of freedom in vertical adjustment on the fixed frame 11. By adjusting the vertical distance between the extrusion roller 13 and the support roller 12, H-beams with different web heights can be accommodated, and appropriate clamping force can be applied to the steel section to prevent it from jumping or shifting during the conveying process.

[0034] Specifically, in this embodiment, two mounting blocks are slidably arranged on the fixed frame 11 in the vertical direction. The two ends of the extrusion roller 13 are freely rotatably mounted on the mounting blocks. A cylinder for pushing the mounting blocks to move closer to the support roller 12 is fixedly installed on the fixed frame 11, and a motor for driving the support roller 12 to rotate is also fixedly installed on the fixed frame 11. The H-beam is moved by the support roller 12.

[0035] In addition, a guide assembly 14 is also provided on the fixed frame 11 to guide the H-beam's position along the second direction on the support roller 12. When the H-beam enters the conveying station, the guide assembly 14 guides the flanges of the beam from both sides, keeping it always on the predetermined conveying trajectory of the support roller 12, thus avoiding the impact on the accuracy of subsequent chamfering due to beam skewing. Through the coordinated action of the support roller 12, the extrusion roller 13, and the guide assembly 14, the directional conveying mechanism 1 can achieve vertical clamping constraint and horizontal guiding positioning of the H-beam during continuous conveying, providing a stable and accurate conveying prerequisite for subsequent eight-sided synchronous chamfering.

[0036] In some embodiments, the aforementioned guiding component 14 may employ, as follows: Figure 6 The structure shown. See also Figure 6The guiding assembly 14 includes a guiding wheel 141, a moving block 142, and a second pushing member 144. The guiding wheel 141 is rotatably mounted on the fixed frame 11; the moving block 142 is slidably mounted on the fixed frame 11 along a second direction, and a clamping wheel 143 is rotatably mounted on the moving block 142; the second pushing member 144 is fixedly mounted on the fixed frame 11, and its driving end is connected to the moving block 142 to push the moving block 142 towards the guiding wheel 141. The guiding assembly 14 adopts an active clamping structure design to achieve precise guidance and positioning of the H-beam in the second direction. Specifically, the guiding assembly 14 includes a guiding wheel 141 rotatably mounted on the fixed frame 11, a moving block 142 slidably mounted on the fixed frame 11 along a second direction, and a second pushing member 144 fixedly mounted on the fixed frame 11. A top clamping wheel 143 is rotatably mounted on the movable block 142. The driving end of the second pusher 144 is connected to the movable block 142 and is used to push the movable block 142 to move closer to the guide wheel 141.

[0037] During operation, the H-beam is conveyed between the support roller 12 and the extrusion roller 13, with one flange abutting against the surface of the guide roller 141. The second pusher 144 drives the moving block 142 to slide along the second direction, causing the clamping roller 143 on the moving block 142 to move closer to the guide roller 141 until the clamping roller 143 abuts against the other flange of the H-beam. In this state, the guide roller 141 and the clamping roller 143 clamp and guide the two flanges of the H-beam from both sides, ensuring that the position of the H-beam on the support roller 12 along the second direction remains constant. When the specifications of the H-beam change, the second pusher 144 can automatically adjust the position of the clamping roller 143 according to the height of the web, so that the guide assembly 14 always maintains close contact with the H-beam, thereby effectively preventing the H-beam from lateral swaying during conveying and providing a precise positioning reference for subsequent chamfering processing.

[0038] Preferably, in this embodiment, by using the above-mentioned guide assembly 14, the main unit 2 on the side near the guide wheel 141 can be fixed during the coarse adjustment process. According to the change of the H-beam specifications, only the position of the other main unit 2 along the second direction needs to be coarsely adjusted. Furthermore, the main unit 2 can be moved between the two sets of fixing frames 11, thereby increasing the coarse adjustment range of the main unit 2 and further increasing the applicability of this application.

[0039] Specifically, in this embodiment, a third sensor for detecting the position of the H-beam is also installed on the fixing frame 11. Along the conveying direction of the H-beam, the third sensor is located behind the guide wheel 141, and the controller is configured as follows: When the third sensor detects the position of the H-beam, it controls the second pusher 144 to push the moving block 142 towards the guide wheel. When the tail end of the H-beam is disengaged from the sensing end of the third sensor, the controller controls the second pusher 144 to push the moving block 142 away from the guide wheel.

[0040] In some embodiments, the upper frame 21 and the lower frame 22 may be adopted as follows: Figure 1 , Figure 2 and Figure 7 The structure shown. See also... Figure 1 , Figure 2 and Figure 7 The upper frame 21 and the lower frame 22 are equipped with a first sensor for monitoring the position of the H-beam. The first sensor is electrically connected to a controller, which is configured as follows: When the first sensor detects that the H-beam has moved to the point where its vertical projection is on the mounting base 32, the controller controls the first pusher 33 to work and push the mounting base 32 to move closer to the H-beam.

[0041] To automate and precisely control the movement of the extrusion rollers 322 on the mounting base 32, a first sensor for monitoring the position of the H-beam is installed on the upper frame 21 and the lower frame 22. This first sensor is electrically connected to a controller. The first sensor is configured to monitor whether the vertical projection of the H-beam falls within the area of ​​the mounting base 32. When the H-beam moves during the conveying process until its vertical projection falls on the mounting base 32, the first sensor detects the arrival of the H-beam and generates a trigger signal.

[0042] After receiving the trigger signal from the first sensor, the controller controls the first pusher 33 to operate according to preset logic, driving the mounting base 32 to move closer to the H-beam until the extrusion rollers 322 on the mounting base 32 abut against the upper or lower edge of the flange. Through the above sensing and control mechanism, this equipment achieves automatic extension and abutment of the extrusion rollers 322 after the H-beam is in place, completing precise vertical positioning without manual intervention. When the batch of H-beams is finished or the specifications are changed, the controller can control the first pusher 33 to reset the mounting base 32, waiting for the arrival of the next section of steel, thus realizing the automation and intelligence of the vertical limiting action during the chamfering process.

[0043] Preferably, in this embodiment, during the process of controlling the mounting seats 32 on the upper frame 21 and the lower frame 22 to move vertically, the corresponding mounting seats 32 on the upper frame 21 are first controlled to move downward, and the H-beam is supported by the support rollers 12, and then the mounting seats 32 on the lower frame 22 are controlled to move upward.

[0044] In some embodiments, the mounting base 32 may be as follows: Figure 1, Figure 2 , Figure 4 and Figure 7 The structure shown. See also... Figure 1 , Figure 2 and Figure 7 Both the upper frame 21 and the lower frame 22 are equipped with a third pusher 34 for pushing the movable seat 31 to move on the upper frame 21 or the lower frame 22. The mounting seat 32 is equipped with a second sensor for monitoring the position of the H-beam. The second sensor is electrically connected to the controller. The controller is configured as follows: When the second sensor detects that the extrusion roller 322 on the mounting base 32 abuts against the H-beam, the controller controls the third pusher 34 to push the movable base 31 to move towards the corresponding flange on the H-beam.

[0045] To achieve automated control of the horizontal movement of the movable seat 31, third pushing components 34 are installed on both the upper frame 21 and the lower frame 22 to propel the movable seat 31 along the second direction. Simultaneously, a second sensor for monitoring the position of the H-beam is installed on the mounting base 32, and this second sensor is electrically connected to the controller. Through the coordinated operation of the first and second sensors, this equipment establishes an automated control logic for sequential action in the vertical and horizontal directions.

[0046] In operation, the controller is configured to execute control in the following sequence: First, when the first sensor detects that the vertical projection of the H-beam is located in the area of ​​the mounting base 32, the controller controls the first pusher 33 to operate, driving the mounting base 32 to move closer to the H-beam until the extrusion roller 322 on the mounting base 32 abuts against the flange side of the H-beam. At this time, the second sensor detects that the H-beam has reached the predetermined abutment position and feeds a signal back to the controller. The controller then controls the third pusher 34 to operate, pushing the moving base 31 to move closer to the corresponding flange on the H-beam, so that the limiting roller 321 on the moving base 31 gradually approaches and finally abuts against the inner and outer sides of the flange. Through the above-mentioned two-stage sensing and two-stage driving automated control process, this equipment realizes the sequential automatic positioning of the extrusion roller 322 and the limiting roller 321, completing the all-round limiting of the H-beam without manual intervention, further improving the intelligence level and ease of operation of the equipment in specification switching and continuous processing.

[0047] Specifically, in this embodiment, the first pushing member 33, the second pushing member 144, and the third pushing member 34 are all cylinders. In terms of control logic, the mounting base 32 is first controlled to move vertically on the movable base 31, and then the movable base 31 is controlled to move in a second direction on the upper frame 21 or the lower frame 22. Before the movable base 31 moves, the milling cutter 323 is rotated by a motor, allowing it to move stably to the side of the upper flange of the H-beam. When the H-beam has minor deformation, the position of the milling cutter 323 can also be adjusted according to the H-beam by the guidance of the limiting wheel 321 and the pressing wheel 322.

[0048] In some embodiments, the mounting base 32 may be as follows: Figure 3 The structure shown. See also Figure 3 A single mounting base 32 is equipped with multiple limiting wheels 321 and multiple extrusion wheels 322. A milling cutter 323 is rotatably mounted on the mounting base 32. Extrusion wheels 322 are provided on both sides of the milling cutter 323 along the conveying direction of the H-beam. When the second sensor detects the H-beam, that is, when the corresponding extrusion wheel 322 abuts against the H-beam, the end of the H-beam is located on the limiting wheel 321 and extrusion wheel 322 in front of the milling cutter 323.

[0049] A single mounting base 32 is equipped with multiple limiting wheels 321 and multiple pressing wheels 322, while a milling cutter 323 is rotatably mounted on the mounting base 32. Specifically, in this embodiment, a motor for driving the milling cutter 323 to rotate is fixedly mounted on the mounting base 32. Along the conveying direction of the H-beam, pressing wheels 322 are provided on both sides of the milling cutter 323, that is, the pressing wheels 322 are respectively arranged in front of and behind the milling cutter 323. With the above arrangement, when the H-beam passes through each wheel set in sequence during the conveying process, the multiple pressing wheels 322 can form a continuous and stable vertical constraint on the side of the flange of the H-beam, avoiding processing vibration or positional displacement caused by cantilever effect.

[0050] Specifically, in this embodiment, a motor for driving the milling cutter 323 to rotate is fixedly mounted on the mounting base 32. When the second sensor detects the position of the H-beam, the controller controls the motor to drive the milling cutter 323 to rotate.

[0051] Furthermore, the controller is configured such that when the second sensor detects the H-beam, the end of the H-beam is precisely positioned on the limiting wheel 321 and the pressing wheel 322 in front of the milling cutter 323. In other words, the installation position of the second sensor is precisely calibrated so that its trigger moment corresponds to the position where the front end of the H-beam has entered the clamping range of the front wheel assembly but has not yet reached the milling cutter 323. At this time, after receiving the signal from the second sensor, the controller controls the third pusher 34 to push the moving seat 31 towards the flange, so that the front limiting wheel 321 and the pressing wheel 322 first constrain the entry end of the H-beam. As the H-beam continues to be conveyed forward, the milling cutter 323 begins to mill the flange of the H-beam, starting from the end of the H-beam. As the H-beam continues to move, the rear wheel assembly gradually contacts the steel, eventually forming a complete limiting and support system on both sides of the milling cutter 323. This design ensures that the H-beams are sufficiently stable in posture before entering the machining area of ​​the milling cutter 323, thereby significantly improving the accuracy and safety of chamfering.

[0052] In some embodiments, the controller is further configured to: When the first sensor detects that the state of the H-beam has switched to the state of not detecting the H-beam, a delayed retraction procedure is triggered. The delayed retraction procedure is configured to send retraction commands to the first pusher 33 and the third pusher 34 in sequence after a predetermined time threshold. The predetermined time threshold is set as the time required from the moment the first sensor switches to the undetected state until the end of the H-beam is removed from the milling cutter 323 and still simultaneously abuts against the limiting wheel 321 and the pressing wheel 322.

[0053] The controller is also configured to automatically reset the control logic after the H-beam is processed. Specifically, when the end of the H-beam disengages from the sensing end of the first sensor, the controller knows that the beam has essentially completed its passage through the processing area, but at this time the beam has not yet completely detached from the entire device. The controller is set to delay for a certain period of time before controlling the first pusher 33 and the third pusher 34 to retract sequentially.

[0054] After the delay period, the H-beam is positioned such that its end is detached from the milling cutter 323 but still abuts against the limiting wheel 321 and the pressing wheel 322 behind the milling cutter 323. In other words, during the delay period, although the end of the H-beam has left the milling cutter 323, the rear wheel assembly remains in contact with the beam, providing continuous support and guidance. When the delay ends, the controller first retracts the first pusher 33, causing the pressing wheel 322 on the mounting base 32 to detach from the flange side; then, it retracts the third pusher 34, causing the limiting wheel 321 on the moving base 31 to move away from the flange. Each wheel assembly is then reset to its initial state, awaiting the arrival of the next H-beam. This design effectively avoids beam instability or surface scratches caused by premature retraction of the limiting wheel 321 or the pressing wheel 322, while also achieving automated reset after processing, further enhancing the equipment's intelligence and processing safety.

[0055] Specifically, in this embodiment, the H-beam is conveyed at a constant speed along the first direction by the directional conveying mechanism 1, so that the duration of the delay time can be calculated based on the conveying speed and the distance between the second sensor and the milling cutter 323.

[0056] Specifically, in this embodiment, the aforementioned monitoring and control method has the following advantages: When production switching is required between H-beams of similar specifications, the first and second sensors can sense the position of the H-beams in real time and, in conjunction with the controller, automatically execute the sequential actions of each pushing component. The equipment can automatically adapt to the dimensional changes of the new specification steel without stopping. This is because H-beams of similar specifications have small differences in key dimensions such as web height and flange width. The coarse adjustment positions of the upper frame 21 and lower frame 22, as well as the travel distances of the moving seat 31 and mounting seat 32, are all within the pre-set tolerance range. Within the travel distances of the moving seat 31 and mounting seat 32, the limiting and processing of subsequent steel sections can be continuously completed. Therefore, the equipment achieves seamless connection and continuous production when switching between similar specifications, significantly reducing the frequency of downtime adjustments and improving the overall efficiency and flexibility of the production line.

[0057] In some embodiments, the aforementioned limiting wheel 321 may be adopted as follows: Figure 3 The structure shown. See also Figure 3 The position of the limiting wheel 321 on the mounting base 32 has the freedom to be adjusted in the second direction, and the mounting base 32 is threaded with a push rod 35 for preventing the limiting wheel 321 from moving in the second direction.

[0058] The position of the limiting wheel 321 on the mounting base 32 has a degree of freedom to be adjusted in the second direction to accommodate the different requirements of the extension of the limiting wheel 321 relative to the milling cutter 323 for H-beams of different flange thicknesses or specifications. Specifically, after the operator adjusts the extension position of the limiting wheel 321 relative to the milling cutter 323 in the second direction according to the specifications of the H-beam to be processed, the end of the push rod 35 connected to the thread on the mounting base 32 is tightened to press against the mounting part of the limiting wheel 321, thereby preventing the limiting wheel 321 from undergoing unexpected displacement due to vibration or external force during operation.

[0059] The beneficial effects of this design are as follows: Firstly, the precise adjustability of the position of the limiting wheel 321 ensures that the relative position of the limiting wheel 321 and the milling cutter 323 can be adjusted, thereby adjusting the relative position of the cutting edge of the milling cutter 323 and the flange of the H-beam along the second direction. The operator can flexibly adjust the position of the limiting wheel 321 on the mounting base 32 according to the required chamfer size. Secondly, the locking effect of the push rod 35 eliminates the risk of loosening of the limiting wheel 321 during high-speed continuous machining, avoids the H-beam posture fluctuation or milling vibration caused by the movement of the limiting wheel 321, and significantly improves the machining stability and finished product quality of the chamfering process.

[0060] 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, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An octagonal beveling device for H-beams, characterized in that, include: A directional conveying mechanism (1) is used to convey H-beams along a first direction; Two sets of main machine bases (2) are respectively set on both sides of the directional conveying mechanism (1), and an upper frame (21) and a lower frame (22) are installed on the main machine bases (2); Two sets of milling cutter holders (3) are installed on the upper frame (21) and the lower frame (22). The milling cutter holders (3) are rotatably equipped with limit wheels (321) and extrusion wheels (322). The extrusion wheels (322) on the upper frame (21) correspond vertically to the extrusion wheels (322) on the lower frame (22). The milling cutter holder (3) has a degree of freedom to move in the second direction so that the limiting wheel (321) abuts against the inner or outer side of the H-beam flange; The milling cutter holder (3) on the upper frame (21) and the milling cutter holder (3) on the lower frame (22) have the freedom to move relatively closer or further away in the vertical direction, so that the two corresponding extrusion wheels (322) abut against the upper and lower sides of the flange respectively.

2. The H-beam octagonal chamfering device as described in claim 1, characterized in that, The milling cutter holder (3) includes a movable seat (31). The movable seat (31) is movably arranged on both the upper frame (21) and the lower frame (22) along the second direction. A mounting seat (32) is slidably arranged on the movable seat (31) along the vertical direction. The limiting wheel (321) and the extrusion wheel (322) are both mounted on the corresponding mounting seats (32). A first pushing member (33) for pushing the mounting seat (32) to slide is fixedly installed on the movable seat (31).

3. The H-beam octagonal chamfering device as described in claim 2, characterized in that, The lower frame (22) is fixedly installed on the main unit (2), and the upper frame (21) has a degree of freedom to be adjusted vertically on the position of the main unit (2).

4. The H-beam octagonal chamfering device as described in claim 1, characterized in that, The directional conveying mechanism (1) includes a plurality of fixed units spaced apart along a first direction, the fixed units including: Fixture (11); The support roller (12) is rotatably mounted on the fixed frame (11) and is used to support the H-beam; The extrusion roller (13) is rotatably mounted on the fixed frame (11) and located above the support roller (12). The position of the extrusion roller (13) on the fixed frame (11) has a degree of freedom to be adjusted in the vertical direction. A guide assembly (14) is provided on the fixed frame (11) for guiding the H-beam to position on the support roller (12) in the second direction.

5. The H-beam octagonal chamfering device as described in claim 4, characterized in that, The guiding component (14) includes: A guide wheel (141) is rotatably mounted on the fixed frame (11); A movable block (142) is slidably disposed on the fixed frame (11) along the second direction, and a top clamping wheel (143) is rotatably disposed on the movable block (142); The second pusher (144) is fixedly installed on the fixed frame (11). The driving end of the second pusher (144) is connected to the moving block (142) to push the moving block (142) to move closer to the guide wheel (141).

6. The H-beam octagonal chamfering device as described in claim 2, characterized in that, The upper frame (21) and the lower frame (22) are equipped with a first sensor for monitoring the position of the H-beam. The first sensor is electrically connected to a controller, which is configured to: When the first sensor detects that the H-beam has moved so that its projection along the vertical direction is located on the mounting base (32), the controller controls the first pusher (33) to work and push the mounting base (32) to move closer to the H-beam.

7. The octagonal beveling device for H-beams as described in claim 6, characterized in that, Both the upper frame (21) and the lower frame (22) are equipped with a third pusher (34) for pushing the movable seat (31) to move on the upper frame (21) or the lower frame (22). The mounting base (32) is equipped with a second sensor for monitoring the position of the H-beam. The second sensor is electrically connected to the controller. The controller is configured to: When the second sensor detects that the extrusion wheel (322) on the mounting base (32) abuts against the H-beam, the controller controls the third pusher (34) to push the movable seat (31) to move toward the corresponding flange on the H-beam.

8. The H-beam octagonal chamfering device as described in claim 7, characterized in that, A plurality of limiting wheels (321) and a plurality of extrusion wheels (322) are mounted on a single mounting base (32). A milling cutter (323) is rotatably mounted on the mounting base (32). Along the conveying direction of the H-beam, the extrusion wheels (322) are provided on both sides of the milling cutter (323). When the second sensor detects the H-beam, the end of the H-beam is located on the limiting wheel (321) and the extrusion wheel (322) in front of the milling cutter (323).

9. The octagonal beveling device for H-beams as described in claim 8, characterized in that, The controller is also configured to: When the first sensor detects that the state of the H-beam has switched to the state of not detecting the H-beam, a delayed retraction procedure is triggered. The delayed retraction procedure is configured to send retraction commands to the first pusher (33) and the third pusher (34) in sequence after a predetermined time threshold. The predetermined time threshold is set as the time required from the moment the first sensor switches to the undetected state until the end of the H-beam is removed from the milling cutter (323) and still simultaneously abuts against the limiting wheel (321) and the pressing wheel (322).

10. The octagonal chamfering device for H-beams as described in claim 2, characterized in that, The position of the limiting wheel (321) on the mounting base (32) has a degree of freedom to be adjusted in the second direction, and the mounting base (32) is threaded with a push rod (35) for preventing the limiting wheel (321) from moving in the second direction.

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