Portable steel structure on-site rapid cutting machine

The multi-directional stabilization and rapid angle locking design of the portable steel structure on-site rapid cutting machine solves the problem of displacement and angle adjustment when cutting high-hardness steel with existing equipment, thereby improving cutting accuracy and engineering efficiency.

CN224487820UActive Publication Date: 2026-07-14JIANGXI HONGMA STEEL STRUCTURE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI HONGMA STEEL STRUCTURE CO LTD
Filing Date
2025-07-08
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing steel structure on-site cutting equipment is difficult to control due to workpiece vibration when cutting high-hardness steel, resulting in poor cutting surface accuracy, cumbersome and time-consuming angle adjustment, which makes it difficult to meet complex cutting needs and affects project efficiency.

Method used

The height adjustment mechanism consists of mounting posts, clamping blocks, guide rails, and springs. Combined with the hinged design of the swing arm and fisheye connector, it achieves multi-directional stable fixation and quick angle locking through a two-way threaded adjustment rod. Combined with the double clamping structure of limit blocks and rubber blocks, it absorbs workpiece vibration and is equipped with a protective cover and lighting to prevent debris from flying.

Benefits of technology

It achieves multi-directional stable fixation of steel structure workpieces during the cutting process, reduces the risk of displacement caused by cutting vibration, simplifies the operation process, improves cutting accuracy and engineering efficiency, and adapts to the cutting needs of complex sites.

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Abstract

The utility model relates to steel structure processing technical field especially relates to a portable steel structure on -the -spot quick cutting machine, including bottom plate, mounting post, clamping block, bolt, mounting plate and guide rail, bottom plate top side is provided with mounting post, two clamping blocks are connected with the mounting post upper portion, and the threaded connection of two clamping blocks and the sleeve joint interface of mounting post has bolt, two clamping blocks front part commonly is provided with mounting plate, and the both sides of mounting plate front part are provided with guide rail. The utility model discloses height adjusting mechanism that mounting post, clamping block and guide rail constitute, and the elastic buffer of spring one is combined, realizes the multidirectional stable fixation of steel structure workpiece in the cutting process, reduces the displacement risk that cutting vibration leads to, swing arm and fish eye connector's articulated design cooperates two -way threaded adjusting rod, allows operator to adjust the position of both sides cooperation ring accurate synchronization through rotating adjusting rod, thereby realizes the quick locking of cutting angle.
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Description

Technical Field

[0001] This utility model relates to the field of steel structure processing technology, and in particular to a portable on-site rapid cutting machine for steel structures. Background Technology

[0002] Steel structure cutting is a process of dividing building steel (such as carbon steel, stainless steel, and aluminum alloy) using physical or chemical methods. Among them, rapid on-site steel structure cutting refers to the technology of instantly dividing steel structure components on the construction site. Its core objective is to meet the project schedule requirements by simplifying the operation process and improving equipment mobility.

[0003] However, in traditional steel structure on-site cutting operations, equipment generally relies on a single fixing method (such as direct bolt tightening or simple clamps), and its clamping structure lacks a buffer mechanism and multi-directional adjustment capability. When cutting high-hardness steel, such equipment is unable to suppress displacement caused by workpiece vibration, resulting in large deviations in cutting surface accuracy, and even the risk of cutting blade breakage due to stress concentration. In addition, existing cutting machine angle adjustment relies on repeated manual calibration or complex transmission mechanisms, which is not only cumbersome and time-consuming, but also difficult to quickly adapt to complex cutting angle requirements in confined construction sites. For example, when cutting bevels or irregular cross-sections, it is necessary to disassemble and reset the clamp positioning, which seriously affects project efficiency. The redundancy of the operation process (such as multiple tightening and multiple tool coordination) further exacerbates on-site labor and time costs, which can easily cause delays, especially in projects with tight schedules.

[0004] Therefore, it is necessary to design a portable, rapid on-site cutting machine for steel structures. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a portable on-site rapid cutting machine for steel structures.

[0006] Technical Solution: A portable on-site rapid steel structure cutting machine includes a base plate, mounting column, clamping blocks, bolts, mounting plate, guide rails, guide rod 1, spring 1, sliding plate, mounting frame, cutting disc, motor, swing arm, lifting rod, fisheye connector, bidirectional threaded adjusting rod, and mating ring. A mounting column is located on one side of the top of the base plate. Two clamping blocks are fitted onto the upper part of the mounting column. Bolts thread the two clamping blocks to the mounting column. A mounting plate is located at the front of both clamping blocks. Guide rails are located on both sides of the front of the mounting plate. A vertical guide rail is located at the front of the mounting plate. A guide rod is attached to a spring that surrounds its outer side. A slide plate is slidably connected between the guide rail and the guide rod. A mounting bracket is located at the bottom of the slide plate. A cutting blade is rotatably connected to the inner side of the mounting bracket. A motor is located on the side of the mounting bracket. The motor output shaft passes through the side of the mounting bracket and is connected to the central axis of the cutting blade. A swing arm is hinged to the outer side of the guide rail. A lifting rod is connected to the upper part of the swing arm. Two fisheye connectors are connected to the bottom side of the swing arm. A bidirectional threaded adjusting rod is threadedly connected to the center of the two fisheye connectors. Both sides of the bidirectional threaded adjusting rod are threadedly connected to mating rings.

[0007] Optionally, it also includes a limiting block and a screw. A guide groove is provided in the middle of the top of the base plate, and a limiting block is slidably connected to the guide groove. Several equidistant anti-slip grooves are provided in the front part of the limiting block. A screw is threadedly connected to the lower part of the mounting column corresponding to the limiting block. The front end of the screw is rotatably connected to the limiting block. An adjustment sleeve is provided at the threaded connection between the screw and the lower part of the mounting column.

[0008] Optionally, it also includes an assembly base, a second guide rod, a second telescopic rod, a second spring, a connecting rod, and a handle. The assembly base is symmetrically arranged on the front side of the top of the base plate. The second guide rod is slidably connected to the top of the assembly base. The second guide rod is slidably connected to the telescopic rod. The telescopic rod is located in front of the limiting block. The second spring is connected to the sliding connection between the telescopic rod and the second guide rod. The connecting rod is rotatably connected to the front side of the top of the assembly base. The rear part of the connecting rod is rotatably connected to the second guide rod. The front part of the connecting rod is rotatably connected to a handle.

[0009] Optionally, it also includes a rubber block, with a rubber block provided at the rear end of the telescopic rod.

[0010] Optionally, it also includes a protective cover, with a vertical plate on the rear side of the top of the base plate and a protective cover hinged to the front side of the vertical plate, the protective cover covering the cut area of ​​the base plate.

[0011] Optionally, it also includes a light, with a light mounted on the front of the skateboard, the light source of which faces downwards.

[0012] The present invention has the following advantages: 1. The present invention achieves multi-directional stable fixation of steel structure workpieces during the cutting process by using a height adjustment mechanism composed of mounting column, clamping block and guide rail, combined with the elastic buffer of spring 1, reducing the risk of displacement caused by cutting vibration; the hinge design of the swing arm and fisheye connector, combined with the bidirectional threaded adjustment rod, allows the operator to precisely and synchronously adjust the position of the mating rings on both sides by rotating the adjustment rod, thereby achieving rapid locking and dynamic compensation of the cutting angle, meeting the needs of complex on-site cutting.

[0013] 2. This utility model drives the swing arm to swing by pressing down the lifting rod, and the linkage slide plate feeds vertically along the guide rail. The spring compensates for the fluctuation of cutting pressure in real time, which not only avoids motor overload, but also ensures the uniformity of cutting depth and simplifies the complicated operation process of traditional mechanical cutting.

[0014] 3. This utility model uses the guide groove of the limiting block to slide in conjunction with the screw adjustment sleeve, combined with the bidirectional abutment structure of the anti-slip groove and the rubber block, to form a double clamping at the front and rear ends, effectively absorbing workpiece vibration and preventing slippage, and is especially suitable for the rapid fixing of irregular cross-section steel.

[0015] 4. This utility model uses a handle structure that links the mounting base and the connecting rod. The telescopic rod is driven by two springs to automatically press against the front end of the workpiece, realizing one-handed operation during the clamping process. At the same time, it allows for adaptive adjustment when the workpiece size changes, improving the flexibility of on-site operation.

[0016] 5. This utility model covers the cutting area with a hinged protective cover, combined with a directional lighting lamp at the front of the slide plate, which not only blocks the risk of flying cutting debris, but also ensures that the cutting trajectory is clearly visible in low light conditions, reducing operational errors. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a structural schematic diagram of the base plate, mounting column, and clamping block of this utility model.

[0019] Figure 3 This is a cross-sectional structural diagram of the mounting plate, guide rail, and spring components of this utility model.

[0020] Figure 4 This is a structural schematic diagram of the limiting block, screw, and mounting base of this utility model.

[0021] Figure 5 This is a structural schematic diagram of the guide rod, connecting rod, and handle of this utility model.

[0022] Figure 6 This is a cross-sectional structural diagram of the telescopic rod, rubber block, and spring components of this utility model.

[0023] In the attached diagrams: 1: Base plate, 2: Mounting column, 3: Clamping block, 31: Bolt, 4: Mounting plate, 5: Guide rail, 6: Guide rod one, 7: Spring one, 8: Slide plate, 9: Mounting bracket, 10: Cutting blade, 101: Motor, 11: Swing arm, 12: Lifting rod, 13: Fisheye connector, 14: Two-way threaded adjusting rod, 141: Mating ring, 15: Limiting block, 16: Screw, 17: Assembly seat, 18: Guide rod two, 181: Telescopic rod, 182: Rubber block, 183: Spring two, 19: Connecting rod, 20: Handle, 21: Protective cover, 22: Lighting lamp. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit this utility model.

[0025] Example: A portable on-site rapid cutting machine for steel structures, such as Figures 1-4 As shown, the equipment includes a base plate 1, mounting posts 2, clamping blocks 3, bolts 31, mounting plate 4, guide rails 5, guide rods 6, springs 7, sliding plate 8, mounting bracket 9, cutting disc 10, motor 101, swing arm 11, lifting rod 12, fisheye connector 13, bidirectional threaded adjusting rod 14, and mating ring 141. The base plate 1 serves as the equipment's foundation platform, supporting all components and providing a workpiece placement surface. A mounting post 2 is located on one side of the top of the base plate 1. Two clamping blocks 3 are fitted onto the upper part of the mounting post 2. Bolts 31 are threadedly connected to the fitting interfaces of the two clamping blocks 3 and the mounting post 2. A mounting plate 4 is located at the front of the two clamping blocks 3. Guide rails 5 are located on both sides of the front of the mounting plate 4. A vertical guide rail 5 is located at the front of the mounting plate 4. The guide rod 6 is surrounded by a spring 7. A slide plate 8 is slidably connected between the guide rail 5 and the guide rod 6. A mounting bracket 9 is provided at the bottom of the slide plate 8. A cutting blade 10 is rotatably connected to the inner side of the mounting bracket 9. A motor 101 is provided on the side of the mounting bracket 9. The output shaft of the motor 101 passes through the side of the mounting bracket 9 and is connected to the central shaft of the cutting blade 10 through a coupling. A swing arm 11 is hinged to the outer side of the guide rail 5. A lifting rod 12 is connected to the upper part of the swing arm 11. Two fisheye connectors 13 are connected to the bottom side of the swing arm 11. A bidirectional threaded adjusting rod 14 is threadedly connected to the middle of the two fisheye connectors 13. Both sides of the bidirectional threaded adjusting rod 14 are threadedly connected to mating rings 141.

[0026] like Figure 4As shown, it also includes a limiting block 15 and a screw 16. A guide groove is provided in the middle of the top of the base plate 1, and the limiting block 15 is slidably connected at the guide groove. Several equidistant anti-slip grooves are provided at the front of the limiting block 15. The screw 16 is threadedly connected to the lower part of the mounting column 2 corresponding to the limiting block 15. The limiting block 15 and the screw 16 are used to position the end face of the workpiece and to rotatably connect the front end of the anti-slip screw 16 to the limiting block 15. An adjustment sleeve is provided at the threaded connection between the screw 16 and the lower part of the mounting column 2.

[0027] like Figures 4-6 As shown, it also includes an assembly base 17, a second guide rod 18, a telescopic rod 181, a second spring 183, a connecting rod 19, and a handle 20. The assembly base 17 is symmetrically arranged on the top front side of the base plate 1. The second guide rod 18 is slidably connected to the top of the assembly base 17. The telescopic rod 181 is slidably connected to the second guide rod 18. The telescopic rod 181 is located in front of the limiting block 15. The second spring 183 is connected to the sliding connection between the telescopic rod 181 and the second guide rod 18. The connecting rod 19 is rotatably connected to the top front side of the assembly base 17. The rear part of the connecting rod 19 is rotatably connected to the second guide rod 18. The front part of the connecting rod 19 is rotatably connected to the handle 20. The second guide rod 18 and the assembly base 17 are slidably engaged, and the connecting rod 19 enables the handle 20 to move together.

[0028] like Figure 5 and Figure 6 As shown, it also includes a rubber block 182, and the rear end of the telescopic rod 181 is provided with a rubber block 182.

[0029] like Figure 1 As shown, it also includes a protective cover 21. A vertical plate is provided on the rear side of the top of the base plate 1. The protective cover 21 is hinged to the front side of the vertical plate. The protective cover 21 covers the cutting area of ​​the base plate 1 and is used to block cutting splatter.

[0030] like Figure 1 As shown, it also includes a lighting lamp 22. The front of the slide plate 8 is bolted with a lighting lamp 22. The light source of the lighting lamp 22 faces downward and provides lighting for the cutting area.

[0031] Before cutting, the operator places the steel structure workpiece on top of the base plate 1. The rotating screw 16 drives the limiting block 15 to slide along the guide groove, using the anti-slip groove to contact the workpiece for initial fixation. The clamping blocks 3 on the mounting column 2 have their spacing adjusted by bolts 31, and workpiece is then clamped a second time using the guide rail 5 and guide rod 6. Spring 7 provides buffer pressure to prevent overload. The handle 20 adjusts the position of the telescopic rod 181 via the connecting rod 19. During the cutting preparation stage, the motor 101 drives the cutting disc 10 to rotate at high speed. The lighting lamp 22 provides local light for auxiliary positioning. The swing arm 11 is linked to the bidirectional threaded adjusting rod 14 via the fisheye connector 13. Rotating the adjusting rod synchronously changes the position of the mating rings 141 on both sides, thus achieving precise positioning. The cutting angle is controlled by the protective cover 21, which covers the cutting area through the hinge of the vertical plate to prevent debris from flying. During the cutting process, the operator presses down the lifting rod 12 to drive the swing arm 11 to swing and push the slide plate 8 down along the guide rail 5 and the guide rod 6. The spring 7 dynamically compensates for pressure fluctuations during the cutting process. The cutting blade 10 is linked with the slide plate 8 through the mounting bracket 9 to achieve vertical feed cutting. If lateral adjustment is required, the position can be finely adjusted by the sliding cooperation between the guide rod 6 and the slide plate 8. The bidirectional threaded adjustment rod 14 maintains the stability of the cutting angle in real time. The rubber block 182 absorbs the vibration of the workpiece. After the cutting is completed, the spring 7 pushes the slide plate 8 to reset. The protective cover 21 can be manually lifted to clean up the waste. The workpiece can be removed by loosening the screw 16 and the clamping block 3.

[0032] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Therefore, all equivalent changes made based on the content described in the claims of the present utility model should be included within the scope of the claims of the present utility model.

Claims

1. A portable steel structure field quick cutting machine comprising a base plate (1), characterized in that, It also includes a mounting post (2), clamping blocks (3), bolts (31), mounting plate (4), guide rails (5), guide rod one (6), spring one (7), sliding plate (8), mounting bracket (9), cutting disc (10), motor (101), swing arm (11), lifting rod (12), fisheye connector (13), bidirectional threaded adjusting rod (14), and mating ring (141). A mounting post (2) is provided on one side of the top of the base plate (1). Two clamping blocks (3) are sleeved on the upper part of the mounting post (2). Bolts (31) are threadedly connected to the sleeve interface between the two clamping blocks (3) and the mounting post (2). A mounting plate (4) is provided on the front of the two clamping blocks (3). Guide rails (5) are provided on both sides of the front of the mounting plate (4). A vertical guide rod one (6) is provided on the front of the mounting plate (4). (6) A spring (7) is connected around the outside. A slide plate (8) is slidably connected between the guide rail (5) and the guide rod (6). A mounting bracket (9) is provided at the bottom of the slide plate (8). A cutting blade (10) is rotatably connected to the inside of the mounting bracket (9). A motor (101) is provided on the side of the mounting bracket (9). The output shaft of the motor (101) passes through the side of the mounting bracket (9) and is connected to the central axis of the cutting blade (10). A swing arm (11) is hinged to the outside of the guide rail (5). A lifting rod (12) is connected to the upper part of the swing arm (11). Two fish-eye connectors (13) are connected to the bottom side of the swing arm (11). A two-way threaded adjusting rod (14) is threaded in the middle of the two fish-eye connectors (13). Both sides of the two-way threaded adjusting rod (14) are threaded with mating rings (141).

2. The portable steel structure rapid on-site cutting machine as described in claim 1, characterized in that, It also includes a limiting block (15) and a screw (16). A guide groove is provided in the middle of the top of the base plate (1), and the limiting block (15) is slidably connected at the guide groove. Several anti-slip grooves are provided at the front of the limiting block (15). The screw (16) is threadedly connected to the lower part of the mounting column (2) corresponding to the limiting block (15). The front end of the screw (16) is rotatably connected to the limiting block (15). An adjustment sleeve is provided at the threaded connection between the outside of the screw (16) and the lower part of the mounting column (2).

3. The portable steel structure rapid on-site cutting machine as described in claim 1, characterized in that, It also includes an assembly base (17), a second guide rod (18), a telescopic rod (181), a second spring (183), a connecting rod (19), and a handle (20). The assembly base (17) is symmetrically arranged on the front side of the top of the base plate (1). The second guide rod (18) is slidably connected to the top of the assembly base (17). The telescopic rod (181) is slidably connected to the second guide rod (18). The telescopic rod (181) is located in front of the limiting block (15). The second spring (183) is connected to the sliding connection between the telescopic rod (181) and the second guide rod (18). The connecting rod (19) is rotatably connected to the front side of the top of the assembly base (17). The rear part of the connecting rod (19) is rotatably connected to the second guide rod (18). The front part of the connecting rod (19) is rotatably connected to the handle (20).

4. The portable steel structure rapid on-site cutting machine as described in claim 1, characterized in that, It also includes a rubber block (182), and the rear end of the telescopic rod (181) is provided with a rubber block (182).

5. A portable on-site rapid cutting machine for steel structures as described in claim 1, characterized in that, It also includes a protective cover (21), and a vertical plate is provided on the rear side of the top of the base plate (1). The protective cover (21) is hinged to the front side of the vertical plate and covers the cutting area of ​​the base plate (1).

6. A portable on-site rapid cutting machine for steel structures as described in claim 1, characterized in that, It also includes a light (22), which is installed at the front of the skateboard (8), with the light source of the light (22) facing downwards.