A precision shearing device for processing channel steel formwork

Abstract

This invention relates to the field of shearing technology, and more particularly to a precision shearing device for processing channel steel templates. The device includes a base, a protective frame, a hydraulic assembly, a movable cutter, a machine body, a fixed block, and a first connecting block. The protective frame is connected to the rear of the base, and the hydraulic assembly is connected to the protective frame. The movable cutter and the fixed block are connected to the piston rod of the hydraulic assembly. The machine body is connected inside the protective frame, and the movable cutter is slidably connected to the machine body. The machine body has a square through-slot adapted to the channel steel. The first connecting block is slidably connected to the bottom of the fixed block. This invention features a first punch and a flange punching assembly, which punches pre-crack holes in the web and side flanges of the channel steel. This pre-guides the fracture path of the channel steel, reduces resistance during shearing, minimizes the extrusion deformation of the channel steel by shearing force, effectively avoids problems such as cut collapse, large burrs, and bending, and improves the flatness and processing accuracy of the channel steel cross-section.

Description

Technical Field

[0001] This invention relates to the field of shearing technology, and in particular to a precision shearing device for processing channel steel templates. Background Technology

[0002] Channel steel is a long strip of steel with a U-shaped cross-section, belonging to carbon structural steel used in construction and machinery. The cross-section of channel steel consists of a web and two side flanges, providing excellent bending resistance and load-bearing capacity. Channel steel is available in hot-rolled and cold-formed types, and is classified into ordinary channel steel and lightweight channel steel according to its shape, measured in millimeters. Due to its high strength, light weight, and ease of processing, channel steel is widely used in building structures, curtain wall engineering, machinery and equipment supports, vehicle manufacturing, and various engineering structures such as beams, columns, and staircases. Channel steel is often used in conjunction with I-beams and angle steel, making it an indispensable material in modern industry and construction.

[0003] Existing channel steel cutting machines, when shearing channel steel, are prone to local bending or overall deformation due to the U-shaped cross-section and relatively low rigidity of the channel steel under concentrated shearing force. This results in material collapse at the cut, uneven edges, and noticeable burrs and flash, severely affecting the quality of subsequent welding or assembly. The resulting bent fracture surfaces are difficult to meet the requirements of high-precision components. Furthermore, the steel may become stuck in the cutting machine after shearing and cannot be automatically removed, requiring manual intervention. This not only increases the labor intensity of operators but also reduces production efficiency and poses certain safety hazards. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide a precision shearing device for processing channel steel templates.

[0005] A precision shearing device for processing channel steel templates includes a base, a protective frame, a hydraulic assembly, a movable cutting tool, a machine body, a fixed block, a first connecting block, a first screw, a first fixed seat, a first punch, and a flange punching assembly. The protective frame is connected to the rear side of the base, and the hydraulic assembly is connected to the protective frame. The movable cutting tool and the fixed block are connected to the piston rod of the hydraulic assembly. The machine body is connected inside the protective frame. The movable cutting tool is slidably connected to the machine body. The machine body has a square through slot adapted to the channel steel. The first connecting block is slidably connected to the bottom of the fixed block, and the first screw is rotatably connected to the bottom of the fixed block. The first screw is threadedly connected to the first connecting block. The first fixed seat is connected to the bottom of the first connecting block, and multiple first punches are connected to the bottom of the first fixed seat.

[0006] As a further preferred embodiment, the flange punching assembly includes a second connecting block, a pressure rod, a wedge block, a slide block, a slide plate, a return spring, a second fixing seat, and a second punch. The fixing block is connected to the second connecting blocks on both the left and right sides. The side of the second connecting block away from the fuselage is connected to the pressure rod. The front left and right sides of the fuselage are slidably connected to the slide blocks. The slide blocks are slidably connected to the first connecting blocks. The slide plates are slidably connected inside the slide blocks. The slide plates are connected to the slide blocks. The side of the slide plates away from the fuselage is connected to the wedge block. The pressure rod is in contact with the inclined surface of the wedge block. The bottom of the wedge block is connected to the second fixing seat. The sides of the left and right second fixing seats that are close to each other are connected to two second punches.

[0007] As a further preferred embodiment, it also includes a linear module, a slider, and a pressure plate. The linear module is connected to the base, and the pressure plate is connected to the slider of the linear module. The pressure plate is aligned with the through slot.

[0008] As a further preferred option, it also includes a first card holder, with the first card holder connected to the side of the pressure plate closest to the machine body, and the side of the first card holder away from the pressure plate having a first card groove adapted to the channel steel.

[0009] As a further preferred embodiment, it also includes a baffle and a second screw. The second screw is rotatably connected to both the left and right sides of the rear of the machine body, and a baffle is threaded between the left and right second screws. The baffle is aligned with the through groove.

[0010] As a further preferred embodiment, it also includes a second card holder, with the side of the baffle closer to the body connected to the second card holder, and the side of the second card holder away from the baffle having a second card groove adapted to the channel steel, the second card groove penetrating the second card holder.

[0011] As a further preferred option, both the first and second card slots have beveled edges on the side closest to the body.

[0012] As a further preferred embodiment, it also includes a first fixing strip, a first spring, and a first pressure strip. The first fixing strip is connected to both the upper and lower sides of the middle of the second card seat, and the first pressure strip is slidably connected to both the upper and lower sides of the middle of the second card slot. The first pressure strip passes through the second card seat, and the first spring is connected between the first pressure strip and the first fixing strip.

[0013] As a further preferred embodiment, it also includes a second fixing strip, a second spring, and a second pressure strip. Two second fixing strips are connected to both the left and right sides of the second card seat, and two second pressure strips are slidably connected to both the left and right sides of the second card slot. The second pressure strips all pass through the second card seat, and a second spring is connected between the second pressure strip and the second fixing strip.

[0014] The present invention has the following advantages: 1. The present invention is equipped with a first punch and a flange punching assembly, which punches pre-crack holes in the web and two side flanges of the channel steel, which can guide the fracture path of the channel steel in advance, reduce the resistance during shearing, reduce the extrusion deformation of the channel steel by shearing force, effectively avoid problems such as cut collapse, large burrs and bending, and improve the flatness and processing accuracy of the channel steel cross section.

[0015] 2. It is also equipped with a linear module, pressure plate and baffle. The linear module pushes the channel steel to move. When the channel steel moves, it squeezes the baffle to form a reverse support force, which effectively prevents the channel steel from shifting or warping during the shearing process, keeps the channel steel stable and ensures the accuracy of the channel steel shearing position.

[0016] 3. It is also equipped with a first pressure bar, a first spring, a second pressure bar, and a second spring. Under the elastic force of the first spring and the second spring, the first pressure bar and the second pressure bar can clamp and fix the channel steel. It can also realize automatic material removal, prevent the sheared channel steel from jamming and interfering with the subsequent insertion of the channel steel into the second slot, avoid the safety hazards caused by manual material handling, and improve shearing efficiency. Attached Figure Description

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

[0018] Figure 2 This is a schematic diagram of the rear view structure of the present invention.

[0019] Figure 3 This is a schematic diagram of the hydraulic components, movable cutting tools, and machine body of the present invention.

[0020] Figure 4 This is a schematic diagram of the structure of the wedge block, the second fixing seat, and the second punch of the present invention.

[0021] Figure 5 This is a cross-sectional view of the fixing block structure of the present invention.

[0022] Figure 6 This is a schematic diagram of the structure of the slide, slide plate, and return spring of the present invention.

[0023] Figure 7 This is a schematic diagram of the linear module, slider, and pressure plate of the present invention.

[0024] Figure 8 This is a schematic diagram of the structure of the baffle, screw, and second card holder of the present invention.

[0025] Figure 9 This is a schematic diagram of the structure of the first fixing strip, the first spring, and the first pressure strip of the present invention.

[0026] Figure 10 This is a cross-sectional view of the second card holder structure of the present invention.

[0027] The components are: 1-base, 2-protective frame, 3-hydraulic component, 4-movable cutter, 5-body, 501-through groove, 6-fixing block, 7-first connecting block, 701-first screw, 8-first fixed seat, 9-first punch, 10-second connecting block, 11-pressure rod, 12-wedge block, 121-slide seat, 122-slide plate, 123-reset spring, 13-second fixed seat, 14-second punch, 15-linear module, 16-slider, 17-pressure plate, 18-first card seat, 181-first card slot, 19-baffle, 20-second screw, 21-second card seat, 211-second card slot, 22-first fixing strip, 23-first spring, 24-first pressure strip, 25-second fixing strip, 26-second spring, 27-second pressure strip. Detailed Implementation

[0028] The present invention will be further described below with reference to specific embodiments. It should also be noted that, unless otherwise explicitly specified and limited, terms such as "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0029] A precision shearing device for processing channel steel formwork, such as Figures 1-10 As shown, it includes a base 1, a protective frame 2, a hydraulic assembly 3, a movable cutter 4, a body 5, a fixing block 6, a first connecting block 7, a first screw 701, a first fixed seat 8, a first punch 9, and a flange punching assembly. The protective frame 2 is connected to the rear side of the base 1. The hydraulic assembly 3 is connected to the protective frame 2. The movable cutter 4 and the fixing block 6 are connected to the piston rod of the hydraulic assembly 3. The body 5 is connected inside the protective frame 2. The movable cutter 4 is slidably connected to the body 5. The body 5 has a square through slot 501 adapted to the channel steel. The first connecting block 7 is slidably connected to the bottom of the fixing block 6. The first screw 701 is rotatably connected to the bottom of the fixing block 6. The first screw 701 is threadedly connected to the first connecting block 7. The first fixed seat 8 is connected to the bottom of the first connecting block 7. Multiple first punches 9 are connected to the bottom of the first fixed seat 8.

[0030] like Figure 1 Figure 4 , Figure 5 and Figure 6As shown, the flange punching assembly includes a second connecting block 10, a pressure rod 11, a wedge block 12, a slide block 121, a slide plate 122, a return spring 123, a second fixing seat 13, and a second punch 14. The second connecting blocks 10 are connected to both the left and right sides of the fixing block 6. The pressure rod 11 is connected to the side of the second connecting block 10 away from the body 5. The slide blocks 121 are slidably connected to both the left and right sides of the front of the body 5. The slide blocks 121 are slidably connected to the first connecting block 7. The slide plate 122 is slidably connected inside the slide block 121. The return spring 123 is connected between the slide plate 122 and the slide block 121. The wedge block 12 is connected to the side of the slide plate 122 away from the body. The pressure rod 11 is in contact with the inclined surface of the wedge block 12. The bottom of the wedge block 12 is connected to the second fixing seat 13. Two second punches 14 are connected to the side of the left and right second fixing seats 13 that are close to each other.

[0031] like Figure 1 , Figure 2 , Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown, it also includes a linear module 15, a slider 16, a pressure plate 17, a first card holder 18, a baffle 19, a second screw 20, and a second card holder 21. The linear module 15 is connected to the base 1. The slider 16 of the linear module 15 is connected to the pressure plate 17. The pressure plate 17 is aligned with the through groove 501. The side of the pressure plate 17 closest to the machine body 5 is connected to the first card holder 18. The side of the first card holder 18 away from the pressure plate 17 has a first slot 181 adapted to the channel steel. The machine body The rear left and right sides are rotatably connected to the second screw 20. The left and right second screws 20 are threadedly connected to the baffle 19. The baffle 19 is aligned with the through groove 501. The side of the baffle 19 closest to the body 5 is connected to the second card seat 21. The side of the second card seat 21 away from the baffle 19 has a second card groove 211 that is adapted to the channel steel. The second card groove 211 passes through the second card seat 21. The edges of the first card groove 181 and the second card groove 211 closest to the body 5 are both set as bevels.

[0032] Initially, the movable cutter 4 is higher than the through slot 501. When shearing the channel steel, one side of the channel steel passes through the through slot 501, inserting one side into the second slot 211, and the other side into the first slot 181. The linear module 15 pushes the channel steel to move. As the channel steel moves, it compresses the baffle 19 to form a reverse support force, effectively preventing the channel steel from shifting or warping during shearing, maintaining the stability of the channel steel, and ensuring the accuracy of the shearing position. When the hydraulic component 3 moves downward, it drives the movable cutter 4 to move downward to shear the channel steel. Then, the hydraulic component 3 drives the movable cutter 4 to move upward away from the through slot 501, completing one shearing operation. The linear module 15 then continues to push the channel steel into the second slot 211, thus performing continuous shearing. When the movable cutter 4 moves downward, the hydraulic assembly 3 simultaneously moves the fixed block 6 downward, causing the fixed block 6 to move the first connecting block 7 downward. The first connecting block 7, through the first fixed seat 8, moves the first punch 9 downward, allowing the first punch 9 to insert into but not penetrate the web of the channel steel. Simultaneously, the fixed block 6 moves the pressure rod 11 downward, pressing the inclined surface of the wedge block 12, causing the wedge block 12 to slide along the slide block 121 closer to the first connecting block 7. The return spring 123 is stretched, and the wedge block 12, through the second fixed seat 13, moves the second punch 14 towards the flange of the channel steel, allowing the second punch 14 to insert into but not penetrate the flange of the channel steel. When the hydraulic assembly 3 drives the movable cutter 4 upward, the hydraulic assembly 3 simultaneously moves the fixed block 6 upward. The first punch 9 moves upward away from the web of the channel steel, the pressure rod 11 no longer presses against the inclined surface of the wedge block 12, and the return spring 123 returns to its original state, causing the wedge block 12 to slide back along the slide block 121. The second punch 14 moves away from the flange of the channel steel, thereby punching pre-crack holes in the web and two side flanges of the channel steel. The pre-crack holes on the web and two side flanges of the channel steel are all located on the same vertical line. The shearing position of the movable cutter 4 is the position of the pre-crack holes. The pre-crack holes can guide the fracture path of the channel steel in advance, reduce the resistance during shearing, reduce the extrusion deformation of the channel steel by the shearing force, effectively avoid problems such as cut collapse, large burrs and bending, and improve the flatness and processing accuracy of the channel steel cross-section. The distance between the first punch 9 and the second punch 14 and the movable cutter 4 is the shearing length of the channel steel. To control the shearing length of the channel steel, use a tool to rotate the first screw 701, causing the first connecting block 7 to slide along the bottom of the fixed block 6 closer to the machine body 5. The first connecting block 7 drives the first fixed seat 8 and the slide 121 to move closer to the machine body 5, thereby reducing the distance between the first punch 9 and the second punch 14 and the movable cutter 4. Then, use a tool to reverse the first screw 701, causing the first connecting block 7 to slide along the bottom of the fixed block 6 away from the machine body 5. The first connecting block 7 drives the first fixed seat 8 and the slide 121 to move away from the machine body 5, thereby increasing the distance between the first punch 9 and the second punch 14 and the movable cutter 4. This allows for adjustment of the shearing length of the channel steel. The operation is simple, the positioning is accurate, and it adapts to different shearing requirements, improving the flexibility and versatility of this shearing device.Using a tool, rotate the second screw 20 to move the baffle 19 closer to the machine body 5, thereby reducing the distance between the baffle 19 and the movable cutter 4. Then, use the tool to reverse the second screw 20 to move the baffle 19 away from the machine body 5, thereby increasing the distance between the baffle 19 and the movable cutter 4. This allows for the adaptation to the shearing length of the channel steel, ensuring that the distance between the baffle 19 and the movable cutter 4 is the same as the distance between the first punch 9, the second punch 14, and the movable cutter 4.

[0033] like Figures 7-10 As shown, it also includes a first fixing strip 22, a first spring 23, a first pressure strip 24, a second fixing strip 25, a second spring 26, and a second pressure strip 27. The first fixing strip 22 is connected to both the upper and lower sides of the middle of the second card seat 21. The first pressure strip 24 is slidably connected to both the upper and lower sides of the middle of the second card groove 211. The first pressure strip 24 passes through the second card seat 21. The first spring 23 is connected between the first pressure strip 24 and the first fixing strip 22. Two second fixing strips 25 are connected to both the left and right sides of the second card seat 21. Two second pressure strips 27 are slidably connected to both the left and right sides of the second card groove 211. The second pressure strip 27 passes through the second card seat 21. The second spring 26 is connected between the second pressure strip 27 and the second fixing strip 25. The elastic force of the first spring 23 and the second spring 26 is greater than the friction force between the channel steel and the second card groove 211.

[0034] Before the channel steel is inserted into the second slot 211, the first spring 23 and the second spring 26 are in their natural state, and the first pressure bar 24 and the second pressure bar 27 slide into the second slot 211. When the channel steel is inserted into the second slot 211, the channel steel compresses the first pressure bar 24 and the second pressure bar 27, causing them to slide away from the second slot 211. The first spring 23 and the second spring 26 are compressed, and under the elastic force of the first spring 23 and the second spring 26, the first pressure bar 24 and the second pressure bar 27 clamp the channel steel, further stabilizing the clamping during shearing to prevent the channel steel from slipping. When the steel loosens, after shearing, the side of the sheared channel steel closest to the movable cutter 4 loses its support, and the stress point of the sheared channel steel changes, causing it to tilt. The first spring 23 and the second spring 26 return to their original state, causing the first pressure bar 24 and the second pressure bar 27 to slide into the second slot 211. This allows the first pressure bar 24 and the second pressure bar 27 to squeeze the sheared channel steel, causing the sheared channel steel to detach from the second slot 211. This achieves automatic material removal, prevents the sheared channel steel from getting stuck and interfering with the subsequent insertion of channel steel into the second slot 211, avoids safety hazards caused by manual material handling, and also improves shearing efficiency.

[0035] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the invention without departing from the principles and spirit of the invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for illustrative purposes only and is not intended to limit the invention; rather, the scope of protection is defined by the content of the claims.

Claims

1. A precision shearing device for processing channel steel templates, comprising a base (1), a protective frame (2), a hydraulic assembly (3), a movable cutter (4), a body (5), and a fixed block (6), wherein the protective frame (2) is connected to the rear side of the base (1), the hydraulic assembly (3) is connected to the protective frame (2), the movable cutter (4) and the fixed block (6) are connected to the piston rod of the hydraulic assembly (3), the body (5) is connected inside the protective frame (2), the movable cutter (4) is slidably connected to the body (5), and the body (5) has a square through slot (501) adapted to the channel steel, characterized in that: It also includes a first connecting block (7), a first screw (701), a first fixing seat (8), a first punch (9) and a flange punching assembly. The bottom of the fixing block (6) is slidably connected to the first connecting block (7), and the bottom of the fixing block (6) is rotatably connected to the first screw (701). The first screw (701) is threadedly connected to the first connecting block (7). The bottom of the first connecting block (7) is connected to the first fixing seat (8), and the bottom of the first fixing seat (8) is connected to multiple first punches (9) for inserting into but not penetrating the web of the channel steel to form a non-penetrating pre-cracked hole on the web of the channel steel. The flange punching assembly includes a second connecting block (10), a pressure rod (11), a wedge block (12), a slide block (121), a sliding plate (122), a return spring (123), a second fixed seat (13), and a second punch (14). The fixed block (6) is connected to the second connecting block (10) on both its left and right sides. The side of the second connecting block (10) furthest from the fuselage (5) is connected to the pressure rod (11). The front left and right sides of the fuselage (5) are slidably connected to the slide block (121), which is slidably connected to the first connecting block (7). A sliding plate (122) is slidably connected inside each slide block (121). A return spring (123) is connected between the sliding plate (122) and the slide block (121). A wedge block (12) is connected to the side of the plate (122) away from the base. The pressure rod (11) is in contact with the inclined surface of the wedge block (12). A second fixed seat (13) is connected to the bottom of the wedge block (12). Two second punches (14) are connected to the sides of the left and right second fixed seats (13) that are close to each other. They are used to insert into but not penetrate the flange of the channel steel to form a non-penetrating pre-crack hole on the flange of the channel steel. The non-penetrating pre-crack hole on the web of the channel steel and the non-penetrating pre-crack hole on the two flanges are located on the same vertical line. The distance between the first punch (9) and the second punch (14) and the movable cutter (4) in the channel steel conveying direction corresponds to the shearing length of the channel steel. The distance can be adjusted by rotating the first screw (701). It also includes a first card holder (18), and the side of the pressure plate (17) closest to the body (5) is connected to the first card holder (18). The side of the first card holder (18) away from the pressure plate (17) has a first card slot (181) that is compatible with the channel steel. It also includes a linear module (15), a slider (16) and a pressure plate (17). The linear module (15) is connected to the base (1), and the pressure plate (17) is connected to the slider (16) of the linear module (15). The pressure plate (17) is aligned with the through groove (501).

2. The precision shearing device for processing channel steel formwork as described in claim 1, characterized in that: It also includes a baffle (19) and a second screw (20). The second screw (20) is rotatably connected to both the left and right sides of the rear of the machine body (5). The baffle (19) is threaded between the left and right second screws (20). The baffle (19) is aligned with the through groove (501).

3. The precision shearing device for processing channel steel templates as described in claim 2, characterized in that: It also includes a second card holder (21), and the side of the baffle (19) near the body (5) is connected to the second card holder (21). The side of the second card holder (21) away from the baffle (19) has a second card slot (211) that is compatible with the channel steel. The second card slot (211) passes through the second card holder (21).

4. The precision shearing device for processing channel steel formwork as described in claim 3, characterized in that: Both the first card slot (181) and the second card slot (211) have beveled edges on the side of the body (5) closest to it.

5. The precision shearing device for processing channel steel formwork as described in claim 4, characterized in that: It also includes a first fixing strip (22), a first spring (23) and a first pressure strip (24). The first fixing strip (22) is connected to both the upper and lower sides of the middle part of the second card seat (21). The first pressure strip (24) is slidably connected to both the upper and lower sides of the middle part of the second card slot (211). The first pressure strip (24) passes through the second card seat (21). The first spring (23) is connected between the first pressure strip (24) and the first fixing strip (22).

6. The precision shearing device for processing channel steel formwork as described in claim 5, characterized in that: It also includes a second fixing strip (25), a second spring (26) and a second pressure strip (27). Two second fixing strips (25) are connected to both sides of the second card seat (21). Two second pressure strips (27) are slidably connected to both sides of the second card slot (211). The second pressure strips (27) all pass through the second card seat (21). A second spring (26) is connected between the second pressure strip (27) and the second fixing strip (25).

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