A shearing machine for steel structural fittings

By designing an L-shaped base and a rapid shearing mechanism, the double-sided corner grooves of concave steel fittings can be processed in one go, solving the problems of low efficiency, poor precision, and inconvenient waste disposal of traditional shearing machines. This achieves efficient and precise shearing results and an environmentally friendly production environment.

CN224587087UActive Publication Date: 2026-08-04QIQIHAR DEWANG STEEL STRUCTURE MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QIQIHAR DEWANG STEEL STRUCTURE MFG CO LTD
Filing Date
2025-08-26
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Traditional shearing machines have low production efficiency when processing concave steel parts. They are difficult to ensure consistent shearing position accuracy of horizontal plates, and waste is difficult to clean up. The lack of effective positioning devices leads to workpiece displacement, affecting processing accuracy and environmental cleanliness.

Method used

It adopts an L-shaped base and a convex mold base structure, combined with a rapid shearing mechanism and an I-shaped clamping plate, to achieve simultaneous shearing of two horizontal plates of concave steel fittings. It is equipped with a collection box to collect waste materials, and uses a hydraulic cylinder to drive the clamping plate to clamp and the hydraulic cylinder to drive the angle cutter to shear synchronously, ensuring accurate positioning and efficient processing.

Benefits of technology

It improves production efficiency, ensures cutting accuracy and waste collection, facilitates cleaning, reduces scrap rate, simplifies operation process, and enhances processing stability and environmental friendliness.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application discloses a shearing machine for steel structure fittings, belonging to the technical field of shearing machines. It includes an L-shaped base with a collection box mounted on it. L-shaped seats are fixedly connected to both sides of the L-shaped base, and a convex mold seat is fixedly connected to both sides. A corner groove is provided in the middle of the convex mold seat, and electric cylinders are fixedly installed at both ends of the convex mold seat. Through a rapid shearing mechanism, the two horizontal plates of a concave steel fitting can be precisely sheared, forming a corner groove in a single shearing operation. Compared to traditional shearing equipment that requires shearing one side at a time, this greatly improves production efficiency, allowing for the processing of double-sided corner grooves in a single clamping operation, reducing processing steps and time. The precise positioning and clamping system, combined with a stable transmission structure, ensures shearing accuracy and reduces scrap rate. The efficient waste collection device keeps the work area clean and easy to maintain, and operation is simple.
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Description

Technical Field

[0001] This application relates to the field of shearing machine technology, and more specifically, to a shearing machine for steel structure fittings. Background Technology

[0002] In the construction and manufacturing industry, steel structure components are widely used. Concave steel components, bent into a square frame structure, can be used for important connecting parts. A crucial process in bending these components into a square frame structure involves using a shearing machine to cut out the four corner grooves. Traditional shearing methods for concave steel components often involve cutting each horizontal plate on one side individually. This is not only inefficient but also makes it difficult to ensure consistent cutting position accuracy between the two horizontal plates, resulting in a low product qualification rate. Furthermore, the waste generated during shearing is easily scattered, making cleaning difficult and affecting the working environment and subsequent operations. The lack of an effective positioning device also makes the workpiece prone to displacement during processing, further reducing processing accuracy. Therefore, we propose a shearing machine for steel structure components. Utility Model Content

[0003] 1. Technical problems to be solved The purpose of this application is to provide a shearing machine for steel structure fittings, which solves the technical problems mentioned in the background art. It realizes the precise shearing operation of two horizontal plates of concave steel fittings through a rapid shearing mechanism, and forms corner grooves in one shearing process. Compared with the traditional shearing equipment that requires shearing one side at a time, it greatly improves production efficiency, and allows the processing of double-sided corner grooves to be completed in one clamping, reducing processing steps and time. The precise positioning and clamping system combined with the stable transmission structure ensures shearing accuracy and reduces scrap rate. The efficient waste collection device keeps the work area clean and easy to clean and maintain, and the operation is simple.

[0004] 2. Technical Solution This application provides a shearing machine for steel structure fittings, comprising: an L-shaped base, on which a collection box is placed and installed; L-shaped seats are fixedly connected to both sides of the L-shaped base; a convex mold seat is fixedly connected to both sides of the L-shaped base; a corner groove is provided in the middle of the convex mold seat; electric cylinders are fixedly installed at both ends of the convex mold seat; an I-shaped clamping plate is driven by the piston rod of the electric cylinder; a concave steel fitting is clamped and installed between the I-shaped clamping plate and the convex mold seat; and a rapid shearing mechanism is installed on the L-shaped base for simultaneously shearing corner grooves from the two horizontal plates of the concave steel fitting.

[0005] By adopting the above technical solution, an L-shaped base is installed on the shearing machine body, serving as the supporting foundation for the entire equipment. A collection box is installed on the L-shaped base to collect waste generated during the shearing process, preventing waste accumulation from affecting the working environment and subsequent operations. L-shaped seats are fixedly connected to both sides of the L-shaped base for fixing the convex mold base. The concave steel fitting can be sleeved on the outside of the convex mold base. Using an electric cylinder as a power source, the I-shaped clamping plate moves towards the convex mold base, achieving the clamping function of the concave steel fitting. The corner groove in the middle of the convex mold base serves as the mold groove structure for shearing the corner groove of the concave steel fitting. The rapid shearing mechanism can accurately shear the two horizontal plates of the concave steel fitting, forming a corner groove in a single shearing operation. Compared to the traditional shearing equipment that requires shearing one side at a time, this greatly improves production efficiency, allowing the processing of double-sided corner grooves to be completed in a single clamping operation, reducing processing steps and time, and significantly improving production efficiency and processing accuracy.

[0006] Optionally, a rectangular groove is provided on the L-shaped base, and a collection box is placed in the rectangular groove. The collection box is located at the bottom of the angular groove of the convex mold base.

[0007] By adopting the above technical solution, a rectangular groove is opened on the L-shaped base, providing a dedicated placement space for the collection box. This allows the collection box to be stably installed at the bottom of the corner groove, so that waste can fall naturally into the collection box after it is generated, without the need for additional guiding devices, thus simplifying the structure.

[0008] Optionally, a guide rod is fixed at both ends of the I-shaped clamping plate, and the guide rod is inserted and connected to the convex mold base. A ruler plate is fixed to the upper surface of the I-shaped clamping plate by screws.

[0009] By adopting the above technical solution, the guide rods set at both ends of the I-shaped clamping plate are connected to the convex mold base through an insertion fit, which enhances the stability and guidance of the I-shaped clamping plate during the movement process, ensures that the clamping force on the concave steel parts is evenly distributed across the entire contact surface, and improves the clamping effect. The installation of the ruler plate provides users with an intuitive measuring tool. Operators can judge the positioning position of the concave steel parts according to the scale on the ruler plate, which facilitates the positioning of the corner groove opened in the concave steel parts.

[0010] Optionally, the rapid shearing mechanism includes a hydraulic cylinder and two Y-shaped slides. The Y-shaped slides are slidably mounted inside an L-shaped base. An angular cutter is fixed to each Y-shaped slide by bolts. The hydraulic cylinder is fixedly connected to a mounting plate, which is fixedly mounted on the L-shaped base. The piston rod of the hydraulic cylinder moves through the mounting plate and is fixedly connected to the upper Y-shaped slide. An H-shaped rack is fixedly mounted on each Y-shaped slide. Two gears are meshed between the H-shaped racks. A rotating shaft is fixed between the gears. The rotating shaft is rotatably connected to two support blocks, which are fixedly mounted on the L-shaped base.

[0011] By adopting the above technical solution, the Y-shaped slide blocks connected by the hydraulic cylinder slide along the L-shaped base. Since the two Y-shaped slide blocks are slidably installed in the L-shaped base, each Y-shaped slide block is equipped with an angle cutter and an H-shaped rack. The H-shaped racks are connected by two gears meshing together. The two gears are mounted on the support block by rotating through a shaft, so that the two H-shaped racks are simultaneously displaced relative to each other. This allows the two angle cutters to accurately cut the two horizontal plates of the concave steel fitting at the same time, ensuring the cutting quality and efficiency.

[0012] Optionally, the L-shaped base is provided with a guide groove, and the Y-shaped slides are slidably disposed in the guide groove. The two Y-shaped slides are respectively disposed at the upper and lower parts of the convex mold base, and springs are fixedly connected between the Y-shaped slides and the L-shaped base.

[0013] By adopting the above technical solution, the guide groove opened on the L-shaped base provides guidance for the Y-shaped slide, and the two Y-shaped slides are respectively set at the upper and lower positions of the convex mold base, so that the two angular cutters are relatively displaced and simultaneously shear the two horizontal plates of the concave steel fitting. The spring is fixedly connected between the Y-shaped slide and the L-shaped base, which plays a certain buffering role, avoids the equipment from being subjected to excessive impact load, and extends the service life of the equipment.

[0014] Optionally, the two angular cutters are displaced relative to each other, and the angular cutters are fitted and connected to the inner wall of the angular groove.

[0015] By adopting the above technical solution, the angled cutter is closely connected to the inner wall of the angled groove, so that when the angled cutter moves along the inner wall of the angled groove, it can closely fit the surface of the workpiece, ensuring clear and neat cutting lines, reducing the generation of burrs, and preventing the workpiece from shifting or deforming during the cutting process, thereby further improving the processing accuracy and product quality.

[0016] 3. Beneficial effects One or more technical solutions provided in this application have at least the following technical effects or advantages: 1. The rapid shearing mechanism enables the simultaneous shearing of corner grooves from two horizontal plates of concave steel fittings, breaking the traditional single-sided shearing method and greatly improving production efficiency. It allows the processing of double-sided corner grooves to be completed in one clamping, reducing processing steps and time. 2. By cooperating with the convex mold base and the setting of the ruler plate, the stability and accurate positioning function of the concave steel parts are ensured during the processing. The electric cylinder driven I-shaped clamp can be adjusted according to the workpiece of different sizes to achieve precise clamping, effectively preventing the workpiece from shifting during the shearing process, ensuring shearing accuracy, ensuring the positional accuracy and dimensional consistency of each shearing, improving product quality and reducing scrap rate. 3. The collection box is located at the bottom of the angular groove of the convex mold base, which facilitates the collection of waste generated during the shearing process, keeps the work area clean, and also facilitates subsequent processing and recycling, reducing the workload of workers and improving the environmental friendliness of production. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a shearing machine for steel structure accessories disclosed in a preferred embodiment of this application; Figure 2 This is a schematic diagram of the convex mold base and I-shaped clamping plate structure of a steel structure fitting shearing machine disclosed in a preferred embodiment of this application. Figure 3 This application discloses a preferred embodiment of a steel structure fitting shearing machine with a rapid shearing mechanism and a concave steel fitting structure. Figure 4 A preferred embodiment of this application discloses a shearing machine for steel structure fittings. Figure 3 Enlarged structural diagram at point A in the middle; The following are the labels in the diagram: 1. L-shaped base; 11. Mounting plate; 12. Rectangular groove; 13. Guide groove; 2. Collection box; 3. Convex mold base; 31. Angular groove; 32. L-shaped base; 4. I-shaped clamping plate; 41. Guide rod; 42. Ruler plate; 5. Electric cylinder; 6. Quick shearing mechanism; 61. Hydraulic cylinder; 62. Y-shaped slide; 63. Angular cutter; 64. Spring; 65. H-shaped rack; 66. Support block; 67. Gear; 68. Rotating shaft; 7. Concave steel fitting; 71. Corner groove. Detailed Implementation

[0018] The present application will be further described in detail below with reference to the accompanying drawings. Reference Figures 1 to 4This application provides a shearing machine for steel structure fittings, comprising: an L-shaped base 1, a collection box 2 mounted on the L-shaped base 1, L-shaped seats 32 fixedly connected to both sides of the L-shaped base 1, and a convex mold seat 3 fixedly connected to both L-shaped seats 32. A corner groove 31 is provided in the middle of the convex mold seat 3. Electric cylinders 5 are fixedly mounted at both ends of the convex mold seat 3. I-shaped clamping plates 4 are driven by the piston rods of the electric cylinders 5. A concave steel fitting 7 is clamped and installed between the I-shaped clamping plates 4 and the convex mold seat 3. A rapid shearing mechanism 6 is mounted on the L-shaped base 1 for simultaneously shearing the corner groove 71 from the two horizontal plates of the concave steel fitting 7. The L-shaped base 1 is mounted on the shearing machine body, serving as the supporting foundation for the entire equipment. The collection box 2 mounted on the L-shaped base 1 is used to collect waste generated during the shearing process, preventing waste accumulation from affecting the operation. In terms of working environment and subsequent operations, L-shaped base 1 is fixedly connected to L-shaped seats 32 on both sides for fixing and installing convex mold base 3. Concave steel fitting 7 can be sleeved on the outside of convex mold base 3. Using electric cylinder 5 as a power source, the electric cylinder 5 drives the I-shaped clamping plate 4 to move towards convex mold base 3 to achieve the clamping function of concave steel fitting 7. The corner groove 31 in the middle of convex mold base 3 is used as the mold groove structure for shearing corner groove 71 of concave steel fitting 7. Through the rapid shearing mechanism 6, the two horizontal plates of concave steel fitting 7 can be accurately sheared, and corner groove 71 is formed in one shearing process. Compared with the traditional shearing equipment that requires shearing one side at a time, the production efficiency is greatly improved, and the processing of double-sided corner groove 71 can be completed in one clamping, reducing processing steps and time, and greatly improving production efficiency and processing accuracy.

[0019] Reference Figure 1 and Figure 2 The L-shaped base 1 has a rectangular groove 12, and the collection box 2 is placed in the rectangular groove 12. The collection box 2 is located at the bottom of the corner groove 31 of the convex mold base 3. By opening the rectangular groove 12 on the L-shaped base 1, a dedicated space is provided for the collection box 2, so that the collection box 2 can be stably installed at the bottom of the corner groove 31, so that the waste can fall into the collection box 2 naturally after it is generated, without the need for additional guiding devices, thus simplifying the structure.

[0020] Reference Figure 1 and Figure 2Both ends of the I-shaped clamping plate 4 are fixed with a guide rod 41, which is connected to the convex mold base 3 by insertion. The upper surface of the I-shaped clamping plate 4 is fixed with a ruler plate 42 by screws. The guide rods 41 at both ends of the I-shaped clamping plate 4 are connected to the convex mold base 3 by insertion, which enhances the stability and guidance of the I-shaped clamping plate 4 during the movement, ensures that the clamping force on the concave steel fitting 7 is evenly distributed on the entire contact surface, and improves the clamping effect. By installing the ruler plate 42, users can be provided with an intuitive measuring tool. Operators can judge the positioning position of the concave steel fitting 7 according to the scale on the ruler plate 42, which makes it convenient to locate the corner groove 71 opened in the concave steel fitting 7.

[0021] Reference Figure 3 and Figure 4 The rapid shearing mechanism 6 includes a hydraulic cylinder 61 and two Y-shaped slides 62. The Y-shaped slides 62 are slidably mounted within an L-shaped base 1. Angle-shaped cutters 63 are bolted to each Y-shaped slide 62. A mounting plate 11 is fixedly connected to the hydraulic cylinder 61, and the mounting plate 11 is fixedly mounted on the L-shaped base 1. The piston rod of the hydraulic cylinder 61 moves through the mounting plate 11 and is fixedly connected to the upper Y-shaped slides 62. H-shaped racks 65 are fixedly mounted on each Y-shaped slide 62. Two gears 67 mesh between the H-shaped racks 65. A rotating shaft 68 is fixed between the gears 67, and the rotating shaft 68 rotatably connects to two support blocks 66. The support block 66 is fixedly mounted on the L-shaped base 1. The Y-shaped slide block 62 connected by the hydraulic cylinder 61 slides along the L-shaped base 1. Since the two Y-shaped slide blocks 62 are slidably installed in the L-shaped base 1, each Y-shaped slide block 62 is equipped with an angle cutter 63 and an H-shaped rack 65. The H-shaped racks 65 are connected by two gears 67 meshing together. The two gears 67 are rotatably mounted on the support block 66 through the rotating shaft 68, so that the two H-shaped racks 65 are simultaneously displaced relative to each other. This allows the two angle cutters 63 to accurately cut the two horizontal plates of the concave steel fitting 7 at the same time, ensuring the cutting quality and efficiency.

[0022] Reference Figure 3 and Figure 4 The L-shaped base 1 has a guide groove 13, and the Y-shaped slides 62 are slidably disposed in the guide groove 13. The two Y-shaped slides 62 are respectively located at the upper and lower parts of the convex mold base 3. Springs 64 are fixedly connected between the Y-shaped slides 62 and the L-shaped base 1. The guide groove 13 on the L-shaped base 1 provides guidance for the sliding of the Y-shaped slides 62. By setting the two Y-shaped slides 62 at the upper and lower parts of the convex mold base 3, the two angular cutters 63 are relatively displaced, and the two horizontal plates of the concave steel fitting 7 are simultaneously sheared. The springs 64 fixedly connected between the Y-shaped slides 62 and the L-shaped base 1 play a certain buffering role, avoiding excessive impact load on the equipment and extending the service life of the equipment.

[0023] Reference Figure 2 and Figure 3 The two angular cutters 63 are displaced relative to each other, and the angular cutters 63 are in close contact with the inner wall of the angular groove 31. By the close contact between the angular cutters 63 and the inner wall of the angular groove 31, the angular cutters 63 can closely fit the surface of the workpiece when they move along the inner wall of the angular groove 31, ensuring that the shearing lines are clear and neat, reducing the generation of burrs, and preventing the workpiece from shifting or deforming during the shearing process, thereby further improving the processing accuracy and product quality.

[0024] Working principle: The L-shaped base 1 is fixed to the shearing machine body. The concave steel part 7 to be processed is placed between the convex die base 3 and the I-shaped clamping plate 4. With the assistance of the ruler plate 42, the position of the corner groove 71 to be cut on the concave steel part 7 is positioned at the corner groove 31 opened in the convex die base 3. The piston rod of the electric cylinder 5 pushes the I-shaped clamping plate 4 to move, firmly clamping the concave steel part 7 between the I-shaped clamping plate 4 and the convex die base 3. After the concave steel part 7 is clamped, the hydraulic cylinder 61 is started, so that the upper Y-shaped slide 62 drives the corresponding connected H As the H-shaped rack 65 moves downward, two gears 67 mesh between the two H-shaped racks 65. The gears 67 are rotatably connected to two support blocks 66 via a rotating shaft 68. As a result, the two H-shaped racks 65 will move in opposite directions simultaneously, causing the two angled cutters 63 to move relative to each other simultaneously. Since the angled cutters 63 are in close contact with the inner wall of the angled groove 31, the corner grooves 71 are cut out simultaneously from the two horizontal plates of the concave steel fitting 7. After the cutting is completed, the hydraulic cylinder 61 resets, the Y-shaped slide 62 returns to its initial position, and the waste falls into the collection box 2, completing one processing cycle.

Claims

1. A shear for steel structural fittings, characterized in that: Includes: an L-shaped base (1), on which a collection box (2) is placed and installed, and L-shaped seats (32) are fixedly connected to both sides of the L-shaped base (1). A convex mold seat (3) is fixedly connected to both sides of the L-shaped base (1). An angled groove (31) is provided in the middle of the convex mold seat (3). Electric cylinders (5) are fixedly provided at both ends of the convex mold seat (3). The piston rod of the electric cylinder (5) is driven to connect to an I-shaped clamping plate (4). A concave steel fitting (7) is clamped and installed between the I-shaped clamping plate (4) and the convex mold seat (3). A quick shearing mechanism (6) is installed on the L-shaped base (1) for simultaneously shearing corner grooves (71) from the two horizontal plates of the concave steel fitting (7).

2. A shear for steel construction fittings according to claim 1, characterised in that: The L-shaped base (1) has a rectangular groove (12) and a collection box (2) is placed in the rectangular groove (12). The collection box (2) is located at the bottom of the corner groove (31) of the convex mold base (3).

3. A shear for steel construction fittings according to claim 1, characterised in that: Both ends of the I-shaped clamp (4) are fixed with a guide rod (41), the guide rod (41) is connected to the convex mold base (3) by insertion, and a ruler plate (42) is fixed on the upper surface of the I-shaped clamp (4) by screws.

4. The shear machine for steel structural fittings according to claim 1, characterized in that: The rapid shearing mechanism (6) includes a hydraulic cylinder (61) and two Y-shaped slides (62). The Y-shaped slides (62) are slidably installed in the L-shaped base (1). Angle cutters (63) are fixed to the Y-shaped slides (62) by bolts. The hydraulic cylinder (61) is fixedly connected to a mounting plate (11). The mounting plate (11) is fixedly installed on the L-shaped base (1). The piston rod of the hydraulic cylinder (61) moves through the mounting plate (11) and is fixedly connected to the upper Y-shaped slides (62). H-shaped racks (65) are fixedly installed on the Y-shaped slides (62). Two gears (67) are meshed between the H-shaped racks (65). A rotating shaft (68) is fixed between the gears (67). The rotating shaft (68) is rotatably connected to two support blocks (66). The support blocks (66) are fixedly installed on the L-shaped base (1).

5. A shear for steel construction fittings according to claim 4, characterised in that: The L-shaped base (1) is provided with a guide groove (13), and the Y-shaped slides (62) are slidably disposed in the guide groove (13). The two Y-shaped slides (62) are respectively disposed at the upper and lower parts of the convex mold base (3). The Y-shaped slides (62) and the L-shaped base (1) are fixedly connected with springs (64).

6. A shear for steel construction fittings according to claim 4, characterised in that: The two angular cutters (63) are displaced relative to each other, and the angular cutters (63) are in close contact with the inner wall of the angular groove (31).