C-shaped steel end bevel angle shearing equipment capable of quickly replacing mold

Abstract

The invention provides C-shaped steel end bevel angle shearing equipment capable of rapidly replacing a mold, and relates to the technical field of stamping and shearing equipment. The equipment comprises a workbench, an operation table, a rack, a hydraulic station, a C-shaped steel end shearing assembly and an oil cylinder, the operation table is arranged on one side of the workbench, the hydraulic station is installed in the workbench, and the C-shaped steel end shearing assembly is installed on the upper surface of the workbench, comprises a movable mold, a fixed mold and a limiting block and is used for efficiently shearing an oblique angle of the end of C-shaped steel; the machine frame is installed on the upper surface of the workbench and arranged above the C-shaped steel end shearing assembly in a crossing mode, and the oil cylinder is fixedly installed on the upper surface of the machine frame through a flange and connected with the hydraulic station through an oil conveying pipe. The equipment is compact in structure, can be easily integrated into an existing production line, and is simple and convenient to maintain. The equipment is suitable for processing the end parts of various types of C-shaped steel, changes the situation that the traditional oblique angle C-shaped steel can only be subjected to laser, gas, water jet cutting and other high-cost cutting, reduces the production cost, and has a wide market application prospect.

Description

Technical Field

[0001] The invention relates to the technical field of stamping and shearing equipment, in particular to a C-shaped steel end bevel shearing equipment capable of quickly replacing molds. Background Art

[0002] In the manufacturing process of integrated steel products, the design of the end bevel makes the C-shaped steel more convenient to connect, and it can be fixed with other components by bolts, welding or riveting, thereby improving the integrity and stability of the structure.

[0003] Traditional cutting equipment uses a top-down shearing method, which has a long shearing stroke and low processing efficiency. Especially when processing higher-strength steel, the cutting quality is difficult to guarantee and it is easy to produce a large number of wrinkles and bends.

[0004] In addition, there are laser, gas and water jet cutting methods in the existing technology, but the disadvantages they all face include high initial investment and operating costs, safety risks during operation, possible noise and pollution to the environment, limited effect when cutting certain materials, the cut edges may require subsequent processing to improve quality, the accuracy may be limited, the cutting speed may not be fast enough for certain materials, high energy consumption and high technical requirements for operators, all of which may affect production efficiency and economic benefits, while increasing maintenance costs. Summary of the invention

[0005] In order to solve the above technical problems existing in the prior art, an embodiment of the present invention provides a C-shaped steel end bevel shearing device capable of quickly replacing molds. The technical solution is as follows:

[0006] A C-shaped steel end bevel shearing device capable of quickly replacing molds comprises a workbench, an operating table, a frame, a hydraulic station, a C-shaped steel end shearing assembly and an oil cylinder.

[0007] The operating table is placed on one side of the workbench, which is convenient for operators to perform shearing operations and monitor the operating status of the equipment; the hydraulic station is installed in the workbench, and the C-shaped steel end shearing assembly is installed on the upper surface of the workbench, which is used to accurately shear the C-shaped steel to ensure the shearing quality and efficiency; the frame is installed on the upper surface of the workbench, and the frame is straddled above the C-shaped steel end shearing assembly. The oil cylinder is fixedly installed on the upper surface of the frame through a flange, and the oil cylinder is connected to the hydraulic station through an oil pipeline;

[0008] The C-shaped steel end shearing assembly comprises a lower die seat, a movable die, a movable die frame, a fixed die and a fixed die frame, an upper die seat and a limit block, and is used for efficiently shearing the bevel of the C-shaped steel end.

[0009] The square bottom plate of the lower die base is fixed on the upper surface of the workbench, and a lower die base guide column and a base are arranged on the square bottom plate. The lower die base guide column is connected to the lower die base through screws, and the base is welded to the lower die base.

[0010] The lower die base guide column is connected to the movable die frame to limit all displacements of the movable die frame except the vertical direction and the maximum lifting displacement of the movable die frame; the upper part of the base is fixedly connected to the fixed die frame.

[0011] The upper die base comprises three upper die base guide columns, a connecting column and a keyway. The upper die base guide columns and the connecting column are fixed to the lower surface of the upper die base by screws, and the keyway is welded to the upper surface of the upper die base.

[0012] The three upper die seat guide columns are connected to the fixed die frame to limit all displacements of the upper die seat except the vertical direction and the maximum lifting displacement of the upper die seat;

[0013] The connecting column is connected to the movable mold frame by bolts to achieve synchronous lifting and lowering movement with the movable mold frame;

[0014] The keyway is connected to the oil cylinder via a key block at the bottom of the oil cylinder.

[0015] The movable die is fixed to the movable die frame by bolts, and the fixed die is fixed to the fixed die frame by bolts; the movable die and the fixed die perform relative dislocation movement, and the shearing of the C-shaped steel port can be achieved with a shearing stroke slightly larger than the thickness of the C-shaped steel;

[0016] The movable die and the fixed die can be replaced for C-shaped steels of different sizes, thicknesses and bevel angles.

[0017] The movable die is designed with an angled design, and a triangular prism-shaped space is cut out from the end face of a cube to form a movable die inclined surface, so that the shearing waste can be more easily removed from the shearing area after shearing is completed, thereby improving the efficiency of removing the shearing waste. In addition, this design also helps to reduce the wear of the die by metal debris during the shearing process, thereby extending the service life of the die.

[0018] The limit block is arranged at the shearing end of the C-shaped steel shearing end assembly, and is used to accurately control the feed amount of the C-shaped steel during the shearing process. Specifically, when the C-shaped steel is guided to the shearing position, its continued advancement is limited by the fixed position of the limit block, ensuring that the sheared portion of the C-shaped steel is aligned with the shearing blade, thereby ensuring the accuracy and consistency of the shearing. The design of the limit block takes into account the dimensional tolerance of the C-shaped steel and the possible slight displacement during the shearing process. By accurately adjusting the position of the limit block, it can adapt to C-shaped steels of different sizes, thereby improving the versatility and adaptability of the mold. In addition, the structural design of the limit block facilitates quick installation and disassembly, and facilitates quick adjustment and maintenance during the production process.

[0019] One end of the fixed die is a C-shaped notch shearing end, and the other end is a C-shaped notch feeding end, the size of the C-shaped notch feeding end is larger than the size of the C-shaped notch shearing end, and the C-shaped notch feeding end and the C-shaped notch shearing end are connected by a C-shaped notch cross-section high-order curve;

[0020] The high-order curve of the C-shaped groove section satisfies the N-order curve equation:

[0021]

[0022] Where t is the thickness of C-shaped steel, N is the degree of polynomial, K n The polynomial coefficient for curve correction needs to be fitted and solved according to the specific situation. In actual design, for a certain type of C-shaped steel, a curve is preliminarily designed, the key points on the curve are collected, and the specific equation of the curve is fitted using MALTAB, and the correction coefficient K value can be obtained.

[0023] The design of connecting the high-order curves of the C-shaped groove section significantly improves the feeding efficiency of the C-shaped steel during the shearing process. By increasing the size of the feed end and introducing high-order curves, the mold can guide the C-shaped steel into the shearing position more stably and smoothly, thereby reducing the deviation and resistance of the C-shaped steel placement, making the feeding process smoother. This design not only improves the shearing accuracy and ensures the high quality of the shearing surface, but also reduces the friction loss to the mold due to the reduced resistance during the feeding process of the C-shaped steel, thereby extending the service life of the mold.

[0024] The flange is welded to the upper surface of the frame, the flange is a square flange, and the bottom of the oil cylinder is connected to the upper mold base through the square flange.

[0025] The beneficial effects brought about by the technical solution provided by the embodiment of the present invention include at least:

[0026] In the above scheme, the design focuses on compactness and aesthetics, while ensuring the stability of performance. The equipment is characterized by its exquisite appearance and simple structure. The special movable mold is designed with an angle to facilitate the removal of waste, reduce the wear on the mold, improve the efficiency of shearing waste removal, and extend the service life of the mold; the slot at the feed end of the fixed mold is enlarged to facilitate the placement of C-shaped steel, and the design guidance of the high-order curve of the C-shaped groove section reduces the resistance during the feeding process of the C-shaped steel, reduces the friction loss of the mold, and thus extends the service life of the mold; the limit block is used to accurately locate the position of the C-shaped steel. By accurately adjusting the position of the limit block, it can adapt to C-shaped steels of different sizes to ensure the accuracy of shearing; the relative movement between the fixed mold and the movable mold is used to achieve offset shearing. This shearing method significantly reduces the stroke required for shearing. Compared with the traditional mechanism that can only perform long-distance shearing from top to bottom, the shearing mechanism of the present invention not only improves production efficiency and shortens production time, but also the shorter shearing stroke improves the stress condition of the cross section, improves the quality of the product cross section, improves the qualified rate of finished products, and effectively reduces production costs. For C-shaped steels of different sizes, bevel sizes and thicknesses, only the movable mold and the fixed mold need to be replaced, thereby improving the versatility and flexibility of the shearing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a schematic diagram of the overall structure of a C-shaped steel end bevel shearing device capable of quickly replacing molds provided by an embodiment of the present invention;

[0029] Figure 2 This is a structural diagram of a C-shaped steel shearing end component in a C-shaped steel end bevel shearing device capable of quickly replacing molds provided by an embodiment of the present invention;

[0030] Figure 3 This is a schematic diagram of the connection between the upper mold frame and the frame in a C-shaped steel end bevel shearing device capable of quickly replacing molds provided by an embodiment of the present invention;

[0031] Figure 4 This is a schematic diagram of the shearing principle of a C-shaped steel end bevel shearing device capable of quickly replacing molds provided by an embodiment of the present invention;

[0032] Figure 5 It is a cross-sectional view of a fixed mold in a C-shaped steel end bevel shearing device capable of quickly replacing molds provided by an embodiment of the present invention;

[0033] Figure 6 yes Figure 5 Schematic diagram of the AA section;

[0034] Figure 7 It is a schematic diagram of C-shaped steel shearing before and after application of a C-shaped steel end bevel shearing device with a quick mold change provided by an embodiment of the present invention.

[0035] Among them: 1- workbench; 2- operation table; 3- frame; 4- hydraulic station; 5- C-shaped steel shearing end assembly; 6- oil cylinder; 7- C-shaped steel before shearing; 8- C-shaped steel after shearing;

[0036] 31-method flange; 51-lower die base; 52-movable die; 53-movable die frame; 54-limiting block; 55-fixed die; 56-fixed die frame; 57-upper die base; 61-key block;

[0037] 511-guide column of lower die base; 512-base; 521-inclined surface of movable die; 551-shear end of C-type notch; 552-feed end of C-type notch; 553-high-order curve of C-type groove section; 571-guide column of upper die base; 572-connecting column; 573-keyway. DETAILED DESCRIPTION

[0038] The technical solution of the present invention is described below in conjunction with the accompanying drawings.

[0039] In the embodiments of the present invention, words such as "exemplarily" and "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "example" in the present invention should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of the word "example" is intended to present the concept in a specific way. In addition, in the embodiments of the present invention, the meaning expressed by "and / or" can be both, or it can be either of the two.

[0040] In the embodiments of the present invention, sometimes a subscript such as W1 may be written as a non-subscript such as W1. When the difference is not emphasized, the meanings to be expressed are the same.

[0041] In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

[0042] The embodiment of the present invention provides a C-shaped steel end bevel shearing device capable of quickly replacing molds. Figure 1 The C-shaped steel end bevel shearing device with a quick mold changeable structure includes: a workbench 1, an operating table 2, a frame 3, a hydraulic station 4, a C-shaped steel end shearing assembly 5 and a cylinder 6.

[0043] The operating table 2 is placed on one side of the workbench 1, the hydraulic station 4 is installed in the workbench 1, the C-shaped steel end shearing assembly 5 is installed on the upper surface of the workbench 1, the frame 3 is installed on the upper surface of the workbench 1, the frame is arranged across the C-shaped steel end shearing assembly 5, the oil cylinder 6 is fixedly installed on the upper surface of the frame 3 through a flange, and the oil cylinder 6 is connected to the hydraulic station 4 through an oil pipeline;

[0044] The C-shaped steel end shearing assembly 5 comprises a lower die seat 51, a movable die 52, a movable die frame 53, a fixed die 55, a fixed die frame 56, an upper die seat 57 and a limit block 54, and is used for efficiently shearing the bevel of the C-shaped steel end.

[0045] like Figure 2 As shown, the square bottom plate of the lower die base 51 is fixed on the upper surface of the workbench 1, and a lower die base guide column 511 and a base 512 are arranged on the square bottom plate. The lower die base guide column is connected to the lower die base 51 by screws, and the base is welded to the lower die base.

[0046] The lower die base guide column 511 is connected to the movable die frame 53 to limit all displacements of the movable die frame except the vertical direction and the maximum lifting displacement of the movable die frame; the upper part of the base 512 is fixedly connected to the fixed die frame 56.

[0047] The upper die base 57 comprises three upper die base guide columns 571 , a connecting column 572 and a keyway 573 . The upper die base guide columns 571 and the connecting column 572 are fixed to the lower surface of the upper die base 57 by screws, and the keyway 573 is welded to the upper surface of the upper die base.

[0048] The three upper die seat guide pillars 571 are connected to the fixed die frame 56 to limit all displacements of the upper die seat 57 except the vertical direction and the maximum lifting displacement of the upper die seat 57;

[0049] The connecting column 572 is connected to the movable mold frame 53 by bolts to achieve synchronous lifting and lowering movement with the movable mold frame;

[0050] The key slot 573 is connected to the oil cylinder 6 through the key block 61 at the bottom of the oil cylinder. Figure 3 shown.

[0051] The movable mold 52 is fixed to the movable mold frame 53 by bolts, and the fixed mold 55 is fixed to the fixed mold frame 56 by bolts; the movable mold 52 and the fixed mold 55 perform relative dislocation movement;

[0052] The movable die 52 and the fixed die 55 can be replaced for C-shaped steels of different sizes, thicknesses and bevel angles.

[0053] like Figure 4 The movable mold 52 is designed with an oblique angle, and a triangular prism-shaped space is cut out from the end face of a cube to form a movable mold inclined surface 521.

[0054] The limit block 54 is arranged at the shearing end of the C-shaped steel shearing end assembly, and is used to accurately control the feed amount of the C-shaped steel during the shearing process.

[0055] like Figure 5 and Figure 6 As shown, one end of the fixed die 55 is a C-shaped notch shearing end 551, and the other end is a C-shaped notch feeding end 552, the size of the C-shaped notch feeding end 552 is larger than the size of the C-shaped notch shearing end 551, and the C-shaped notch feeding end 552 and the C-shaped notch shearing end 551 are connected by a C-shaped notch cross-section high-order curve 553;

[0056] The high-order curve of the C-shaped groove section satisfies the N-order curve equation:

[0057]

[0058] Where t is the thickness of C-shaped steel, N is the degree of polynomial, K n is the polynomial coefficient of the curve correction. In this embodiment, for C-shaped steel with a thickness of 1 mm (i.e., t=1), key points are collected, and the 2-5 order terms are used to fit using the MALTAB program to obtain the curve equation. After comparison, it is found that the 4th order term has a higher fitting degree and a relatively flat curve. Therefore, the 4th order polynomial is selected as the C-shaped groove section high-order curve. The C-shaped groove section high-order curve 553 is:

[0059] y=-1.0965845×10^(-7)x^4+2.4551534225×10^(-5)x^3-5.0955548437 3×10^(-4)x^2+1.5087782420131×10^(-2)x-2.931870125796×10^(-3)

[0060] The flange is welded to the upper surface of the frame 3 , and the flange is a square flange 31 . The bottom of the oil cylinder passes through the square flange 31 to connect to the upper die base 57 .

[0061] In the existing production process of integrated steel products, the bevel design of the C-shaped steel end makes it more convenient to connect and is suitable for various fields such as construction, bridges, and photovoltaic brackets. However, the existing technology has problems of low efficiency and high cost during the shearing process.

[0062] In view of the above problems, an embodiment of the present invention provides a C-shaped steel end bevel shearing device with a quick mold replacement capability.

[0063] The working process of the device is as follows:

[0064] The operation process of this embodiment includes inserting the C-shaped steel part into the fixed mold 55 in parallel, smoothly guiding the feeding of the C-shaped steel through the design of the higher-order curve 553 of the C-shaped groove section, and accurately positioning the final feeding position of the C-shaped steel part by using the limit block 54. The operator inputs the shearing command through the operating table 2, activates the cylinder 6, and prompts its internal piston rod (located at the bottom of the cylinder) to push the upper mold seat, thereby driving the mold frame 53 and the movable mold 52 to move vertically downward in coordination. In this process, the movable mold 52 and the fixed mold 55 cooperate with each other to apply shear force to the C-shaped steel part at a predetermined position through the offset shearing technology. After the shearing is completed, the end bevel of the C-shaped steel part is precisely cut off to form the required shape and size. Subsequently, the piston rod of the hydraulic cylinder 6 retracts, driving the mold assembly back to the initial position to prepare for the next shearing, thereby completing the entire automated shearing process. The C-shaped steel 7 before shearing and the C-shaped steel 8 after shearing are as shown in FIG. Figure 7 shown.

[0065] In addition, another key innovation of the present invention is its replaceable mold design. This means that for C-shaped steels of different sizes, bevel sizes and thicknesses, it is only necessary to simply replace the corresponding movable mold 52 and fixed mold 55 to adapt to diverse shearing requirements. This modular design not only improves the versatility and flexibility of the shearing equipment, but also simplifies the equipment adjustment and maintenance process, thereby improving production efficiency and reducing maintenance costs. Through this design, the present invention can flexibly respond to the shearing requirements of various C-shaped steels without the need for complex reconfiguration or adjustment of the equipment.

[0066] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A C-shaped steel end bevel shearing device capable of quickly changing molds, characterized in that: Including workbench, operating table, frame, hydraulic station, C-shaped steel end shear assembly and cylinder, The operating table is placed on one side of the workbench, the hydraulic station is installed inside the workbench, the C-shaped steel end shearing assembly is installed on the upper surface of the workbench, the frame is installed on the upper surface of the workbench, the frame is straddled above the C-shaped steel end shearing assembly, the oil cylinder is fixedly installed on the upper surface of the frame through a flange, and the oil cylinder and the hydraulic station are connected through an oil pipeline; The C-shaped steel end shearing assembly comprises a lower die seat, a movable die, a movable die frame, a fixed die and a fixed die frame, an upper die seat and a limit block, and is used for efficiently shearing the bevel of the C-shaped steel end.

2. The C-shaped steel end bevel shearing device with quick mold change according to claim 1 is characterized in that: The square bottom plate of the lower die base is fixed on the upper surface of the workbench, and a lower die base guide column and a base are arranged on the square bottom plate. The lower die base guide column is connected to the lower die base through screws, and the base is welded to the lower die base.

3. The C-shaped steel end bevel shearing device with quick mold change according to claim 2 is characterized in that: The lower die base guide column is connected to the movable die frame to limit all displacements of the movable die frame except the vertical direction and the maximum lifting displacement of the movable die frame; the upper part of the base is fixedly connected to the fixed die frame.

4. The C-shaped steel end bevel shearing device with quick mold change according to claim 1 is characterized in that: The upper die base comprises three upper die base guide columns, a connecting column and a keyway. The upper die base guide columns and the connecting column are fixed to the lower surface of the upper die base by screws, and the keyway is welded to the upper surface of the upper die base.

5. The C-shaped steel end bevel shearing device with quick mold changeability according to claim 4 is characterized in that: The three upper die seat guide columns are connected to the fixed die frame to limit all displacements of the upper die seat except the vertical direction and the maximum lifting displacement of the upper die seat; The connecting column is connected to the movable mold frame by bolts to achieve synchronous lifting and lowering movement with the movable mold frame; The keyway is connected to the oil cylinder via a key block at the bottom of the oil cylinder.

6. The C-shaped steel end bevel shearing device with quick mold change according to claim 1 is characterized in that: The movable die is fixed to the movable die frame by bolts, and the fixed die is fixed to the fixed die frame by bolts; the movable die and the fixed die perform relative dislocation movement; The movable die and the fixed die can be replaced for C-shaped steels of different sizes, thicknesses and bevel angles.

7. The C-shaped steel end bevel shearing device with quick mold change according to claim 1 is characterized in that: The movable mold is designed with an oblique angle, and a triangular prism-shaped space is cut out from the end face of a cube to form the movable mold oblique surface.

8. The C-shaped steel end bevel shearing device with quick mold change according to claim 1 is characterized in that: The limit block is arranged at the shearing end of the C-shaped steel shearing end assembly and is used to accurately control the feed amount of the C-shaped steel during the shearing process.

9. The C-shaped steel end bevel shearing device with quick mold change according to claim 1, characterized in that: One end of the fixed die is a C-shaped notch shearing end, and the other end is a C-shaped notch feeding end, the size of the C-shaped notch feeding end is larger than the size of the C-shaped notch shearing end, and the C-shaped notch feeding end and the C-shaped notch shearing end are connected by a C-shaped notch cross-section high-order curve; The high-order curve of the C-shaped groove section satisfies the N-order curve equation: ， Where t is the thickness of C-shaped steel, N is the degree of the polynomial, are the polynomial coefficients for curve correction, which are solved by fitting according to the specific situation.

10. The C-shaped steel end bevel shearing device with quick mold change according to claim 1, characterized in that: The flange is welded to the upper surface of the frame, the flange is a square flange, and the bottom of the oil cylinder is connected to the upper mold base through the square flange.

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