Building steel cutting and positioning tool

By designing a mechanized cutting and positioning fixture for building steel, the problem of manually fixing the upper end of the steel was solved, thereby improving safety and operational flexibility and ensuring the stability and flatness of the cutting process.

CN224128724UActive Publication Date: 2026-04-17GANSU JIANTOU STEEL STRUCTURE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GANSU JIANTOU STEEL STRUCTURE
Filing Date
2025-03-11
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing steel cutting fixtures require manual fixing of the upper end of the steel, which affects operational flexibility and safety, and wearing gloves affects the feel of the workpiece.

Method used

A cutting and positioning fixture for building steel, comprising a base, positioning components, and fixing components, was designed. The fixture uses a mechanical structure to fix the upper end of the steel, thus avoiding direct contact between human hands and high-temperature debris.

Benefits of technology

It achieves mechanical fixation of the upper part of the steel, freeing up manpower for other operations, improving operational flexibility and safety, avoiding contact with high-temperature debris, and ensuring a stable and secure fixation method that is not easy to loosen, thus ensuring a flat cut surface.

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Abstract

The utility model relates to the technical field of positioning tools, and particularly discloses a building steel cutting positioning tool which comprises a base, a positioning assembly and a fixing assembly, a cutting groove is formed in the top of the base, a working assembly is installed on the top of the base and can fix and cut steel, the bottom of the positioning assembly is connected with the top of the base, and the fixing assembly is connected with the cutting groove. According to the internal structure of the steel cutting device, the traditional mode that a worker directly fixes the steel with hands can be changed, meanwhile, after the front end and the rear end of the steel are fixed, the upper end of the steel is effectively fixed through an internal mechanical structure, and the fixing effect can be maintained in the cutting process, for example, goggles are adjusted or chippings are cleaned; and the situation that a fixed palm makes contact with generated high-temperature chippings is avoided, the use of the equipment is safer and more flexible, and meanwhile, the upper end is mechanically fixed, so that the flatness of a tangent plane can be guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of positioning tooling technology, specifically to positioning tooling for cutting building steel. Background Technology

[0002] Construction steel can generally be divided into steel for steel structures and reinforcing steel for reinforced concrete structures. Steel for steel structures mainly includes ordinary carbon structural steel and low-alloy structural steel. Varieties include structural steel sections, steel pipes, and reinforcing bars. Structural steel sections include angle steel, I-beams, and channel steel. Construction steel needs to be cut according to actual usage requirements when used in construction projects.

[0003] However, existing steel cutting typically uses a cutting machine, and to ensure the steel remains in place during cutting, a positioning fixture needs to be installed on the side of the cutting machine. This fixture limits and fixes the front and rear sides of the steel, while the upper end of the steel is cut using the cutting disc. However, existing cutting fixtures require the operator to use one hand to hold the top of the steel in place while the other hand presses down the cutting disc. This leaves the operator with no spare hands for other tasks such as supporting safety goggles or cleaning debris. Furthermore, holding the upper end of the steel in place requires wearing gloves to avoid contact with the high-temperature debris generated during cutting, which affects the operator's feel. Therefore, we propose a positioning fixture for cutting construction steel. Utility Model Content

[0004] The purpose of this utility model is to provide a positioning fixture for cutting building steel, in order to solve the problem mentioned in the background art that the existing cutting fixture requires one hand to fix the top of the steel and the other hand to press the cutting blade down during use. This results in the operator not having a spare hand to perform other operations such as supporting goggles or cleaning debris. At the same time, holding the top of the steel requires wearing gloves to avoid contact with the high-temperature debris generated during cutting, and wearing gloves affects the operator's feel.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a steel cutting and positioning fixture for construction, including a base, a cutting groove on the top of the base, and a working component installed on the top of the base. The working component can fix and cut the steel, including a positioning component. The bottom of the positioning component is connected to the top of the base, and the positioning component can fix the upper end of the steel.

[0006] The fixing component is installed on the side of the positioning component. The fixing component and the positioning component work together to adjust and fix according to the specifications of the steel. The positioning component includes lifting blocks, which are set in two sets. The top of the lifting block has a connecting hole. The bottom of the lifting block is slidably connected to a limit post. The bottom of the limit post is fixedly connected to the top of the base. A telescopic spring is fixedly connected to the side of the limit post. One end of the telescopic spring is fixedly connected to the bottom of the lifting block. The top of the lifting block set is rotatably connected to a positioning block.

[0007] The bottom of the positioning block is fixedly equipped with a spring sheet, which can extend and retract under force, and the top of the positioning block is equipped with a hand scaffold.

[0008] The positioning block has a connecting plate fixedly connected to its end, a limit frame fixedly connected to its top, and its bottom slidably connected to the top of a set of lifting blocks away from the positioning block. A roller is installed at the bottom of the set of lifting blocks away from the positioning block, and the side of the roller is rotatably connected to the bottom of the limit post.

[0009] The fixing component includes a socket, the connecting plate has a socket inside, a pin passes through the socket, a rotating rod is rotatably connected to the side of the base, a fixing shaft is installed at the end of the rotating rod, and the outer edge of the fixing shaft is engaged with the limiting frame.

[0010] The limiting frame has several sets, and the limiting frame is set with a hook structure. The gaps between the limiting frames are equal.

[0011] The working components include a screw, the bottom of which is rotatably connected to the inside of the base, a movable block rotatably connected to one end of the screw, a fixed block fixedly connected to the top of the base, and the main body of the cutting machine mounted on the top of the base.

[0012] This utility model has at least the following beneficial effects:

[0013] The internal structure of this device enables rapid mechanical fixation of the upper end of the steel. Compared to existing technologies, this invention eliminates the need for manual fixation. After fixing the front and rear ends of the steel, the internal mechanical structure effectively secures the upper end, maintaining this fixation during cutting. This frees up the operator's hands for other tasks, such as adjusting goggles or cleaning debris. It also prevents the operator's hands from coming into contact with the hot debris, making the device safer and more flexible. Furthermore, the mechanical fixation of the upper end provides a more stable and secure fit, preventing loosening and ensuring a smooth cut surface. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a front view of the present utility model;

[0016] Figure 3 This is a schematic diagram of the working component structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the base of this utility model;

[0018] Figure 5 This is a schematic diagram of the positioning component structure of this utility model;

[0019] Figure 6 This is a schematic diagram of the cross-sectional structure of the lifting block of this utility model.

[0020] In the diagram: 1. Base; 2. Working component; 3. Positioning component; 4. Fixing component; 5. Screw; 6. Movable block; 7. Fixed block; 8. Cutting machine body; 9. Lifting block; 10. Limiting post; 11. Telescopic spring; 12. Positioning block; 13. Spring piece; 14. Connecting plate; 15. Limiting frame; 16. Insertion hole; 17. Pin; 18. Roller; 19. Rotating rod; 20. Fixed shaft. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] Please see Figures 1 to 6 The present invention provides a technical solution: a steel cutting and positioning fixture for construction, including a base 1, a cutting groove on the top of the base 1, a working component 2 installed on the top of the base 1, the working component 2 being able to fix and cut the steel, including a positioning component 3, the bottom of the positioning component 3 being connected to the top of the base 1, the positioning component 3 being able to fix the upper end of the steel.

[0024] The fixing component 4 is installed on the side of the positioning component 3. The fixing component 4 and the positioning component 3 are used together to adjust and fix the steel according to the specifications. The positioning component 3 includes a lifting block 9, which is set in two sets. The top of the lifting block 9 is provided with a connecting hole.

[0025] The bottom of the lifting block 9 is slidably connected to a limiting post 10. The bottom of the limiting post 10 is fixedly connected to the top of the base 1. A telescopic spring 11 is fixedly connected to the side of the limiting post 10. One end of the telescopic spring 11 is fixedly connected to the bottom of the lifting block 9. A positioning block 12 is rotatably connected to the top of the lifting block 9. When the personnel press the positioning block 12, the lifting block 9 can move down on the limiting post 10. The bottom of the lifting block 9 can compress the telescopic spring 11. The positioning block 12 can flip at the end of the lifting block 9. When the steel is fixed at the front and rear ends by the fixing block 7 and the movable block 6, the length direction of the steel is kept parallel to the movable block 6 and the fixing block 7. The spring piece 13 at the bottom of the positioning block 12 can flip to the upper surface of the steel at the end of the lifting block 9 for fixation, thereby achieving the effect of mechanical fixation, avoiding manual fixation by personnel, and freeing up one hand for other operations.

[0026] A spring sheet 13 is fixedly installed at the bottom of the positioning block 12. The spring sheet 13 can extend and retract under force, which can reserve space for the fixed shaft 20 to move when the internal structure of the fixed component 4 is separated from the limit frame 15. A hand frame is installed on the top of the positioning block 12, which can facilitate personnel to flip the positioning block 12.

[0027] A connecting plate 14 is fixedly connected to the end of the positioning block 12. A limit frame 15 is fixedly connected to the top of the connecting plate 14. The bottom of the connecting plate 14 is slidably connected to the top of a set of lifting blocks 9 away from the positioning block 12. A roller 18 is installed at the bottom of the set of lifting blocks 9 away from the positioning block 12. The side of the roller 18 is rotatably connected to the bottom of the limit post 10. The roller 18 installed at the bottom of another set of lifting blocks 9 can slide on the surface of the base 1, so that the two sets of lifting blocks 9 can fit against the front and rear ends of the steel. After the lifting blocks 9 slide to the fixed position, the insertion hole 16 inside the connecting plate 14 is inserted into the pin 17 together with the lifting blocks 9 to limit and fix the position of the lifting blocks 9. The spring piece 13 is kept in a horizontal position. Then, the personnel press the positioning block 12 to make the two sets of lifting blocks 9 move down together and compress the telescopic spring 11. Finally, the personnel flip the rotating rod 19 so that the fixed shaft 20 at the end of the rotating rod 19 can be inserted into the gap between the limit frames 15, thereby maintaining the height of the positioning block 12 after it is pressed down.

[0028] Example 2

[0029] The fixing component 4 includes a socket 16. The connecting plate 14 has a socket 16 inside, and a pin 17 passes through the socket 16. A rotating rod 19 is rotatably connected to the side of the base 1. A fixing shaft 20 is installed at the end of the rotating rod 19. The outer edge of the fixing shaft 20 is engaged with the limiting frame 15. After the fixing shaft 20 is inserted into the gap between the limiting frame 15, it can limit the height of the positioning block 12. At the same time, when the positioning block 12 continues to press down, the spring piece 13 will be flattened. The distance that the positioning block 12 drives the connecting plate 14 to press down is the space reserved for the fixing shaft 20 to disengage from the gap of the limiting frame 15, thus achieving the separation function.

[0030] The limiting frame 15 has several sets of openings. The limiting frame 15 is set with a hook structure. The gap between the limiting frames 15 is equal. The fixed shaft 20 is used to lock with different limiting frames 15, thereby limiting and fixing the height of the connecting plate 14. The pin 17 passes through the lifting block 9 and the insertion hole 16, thereby fixing and limiting the position of the lifting block 9.

[0031] The working component 2 includes a screw 5, the bottom of which is rotatably connected to the inside of the base 1. One end of the screw 5 is rotatably connected to a movable block 6, and the top of the base 1 is fixedly connected to a fixed block 7. The cutting machine body 8 is installed on the top of the base 1. By rotating the screw 5, horizontal movement is achieved, causing the movable block 6 to move to one side of the fixed block 7, and fixing the front and rear ends of the steel between the movable block 6 and the fixed block 7. After fixing, the cutting machine body 8 is used to cut the steel from the top, and the cut debris will fall into the cutting groove at the top of the base 1.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steel cutting and positioning fixture for construction, comprising a base (1), wherein a cutting groove is provided on the top of the base (1), and a working component (2) is installed on the top of the base (1), wherein the working component (2) is capable of fixing and cutting steel, characterized in that: It includes a positioning component (3), the bottom of which is connected to the top of the base (1), and the positioning component (3) can fix the upper end of the steel. A fixing component (4) is installed on the side of the positioning component (3). The fixing component (4) and the positioning component (3) are used together to adjust and fix the steel according to the specifications. The positioning component (3) includes a lifting block (9). The lifting block (9) is set in two sets. The top of the lifting block (9) is provided with a connecting hole. The bottom of the two sets of lifting blocks (9) is slidably connected to a limit post (10). The bottom of the two sets of limit posts (10) is fixedly connected to the top of the base (1). The sides of the two sets of limit posts (10) are fixedly connected to a telescopic spring (11). One end of the two sets of telescopic springs (11) is fixedly connected to the bottom of the lifting block (9). The top of one set of lifting blocks (9) is rotatably connected to a positioning block (12).

2. The building steel cutting and positioning fixture of claim 1, wherein: A spring sheet (13) is fixedly installed at the bottom of the positioning block (12). The spring sheet (13) can extend and retract under force. A hand frame is installed on the top of the positioning block (12).

3. The building steel cutting and positioning fixture of claim 2, wherein: The end of the positioning block (12) is fixedly connected to a connecting plate (14), the top of the connecting plate (14) is fixedly connected to a limit frame (15), the bottom of the connecting plate (14) is slidably connected to the top of a set of lifting blocks (9) away from the positioning block (12), and a roller (18) is installed at the bottom of the set of lifting blocks (9) away from the positioning block (12). The side of the roller (18) is rotatably connected to the bottom of the limit post (10).

4. The building steel cutting and positioning fixture of claim 3, wherein: The fixing component (4) includes a socket (16). The connecting plate (14) has a socket (16) inside. A pin (17) passes through the socket (16). A rotating rod (19) is rotatably connected to the side of the base (1). A fixed shaft (20) is installed at the end of the rotating rod (19). The outer edge of the fixed shaft (20) is engaged with the limiting frame (15).

5. The building steel cutting and positioning fixture of claim 3, wherein: The limiting frame (15) has several sets of openings, the limiting frame (15) is configured as a hook structure, and the gaps between the limiting frames (15) are equal.

6. The building steel cutting and positioning fixture of claim 4, wherein: The working component (2) includes a screw (5), the bottom of which is rotatably connected to the interior of the base (1), a movable block (6) is rotatably connected to one end of the screw (5), a fixed block (7) is fixedly connected to the top of the base (1), and a cutting machine body (8) is installed on the top of the base (1).