A C-shaped steel punching device
The C-shaped steel punching device, which uses an inner pad and rollers to clamp the steel, solves the problem of C-shaped steel being easily twisted and dented in traditional devices, achieving high-quality punching results and convenient debris cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN SHENGFENGYUAN STEEL CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-06-23
AI Technical Summary
Traditional C-shaped steel punching devices are prone to causing C-shaped steel to twist and dent during punching or drilling, and existing technologies cannot effectively avoid this problem.
The inner side plate and rollers work together to clamp the steel. The motor drives the bidirectional screw to move the threaded block and push rod, ensuring that the inner side of the C-shaped steel is tightly attached. The plate supports the steel to prevent dents, and a storage box is set up to collect debris.
It improves the quality of punching, prevents C-shaped steel from denting and deforming during the punching process, and facilitates the removal of debris.
Smart Images

Figure CN224389741U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of C-shaped steel processing technology, and in particular to a C-shaped steel punching device. Background Technology
[0002] C-shaped steel is a type of steel structure component. Its cross-sectional shape resembles the letter "C". Due to its light weight and simple construction, it is widely used in large factories, stadiums, and high-rise buildings. When using C-shaped steel, it is necessary to drill holes in it.
[0003] Traditional C-shaped steel punching devices typically use external clamping or single-sided fixing. During punching or drilling, because the opening of the C-shaped steel faces downwards, it is prone to twisting and denting when subjected to impact. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a C-shaped steel drilling device that can improve drilling quality and prevent C-shaped steel from denting and deforming.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A C-shaped steel drilling device includes a support plate, a pad fixedly connected to the upper center of the support plate, a through hole provided in the upper center of the pad, mounting plates provided on both the front and rear sides of the right end of the pad, rollers rotatably connected to both ends of the mounting plates, a groove provided in the center of the right end of the pad, and fixing blocks fixedly connected to both ends of the right end of the pad in the groove, a bidirectional screw rotatably connected to the center of the fixing blocks, threaded blocks threaded to both ends of the bidirectional screw, and threaded blocks threaded to both ends of the threaded blocks. Each side is rotatably connected to a first push rod, the ends of which are rotatably connected to the outer side of the mounting plate. A motor is installed on the right end of the pad, and the drive end of the motor is fixedly connected to the top left end of the bidirectional screw. First limiting rods are fixedly connected to the lower sides of both the left and right ends of the mounting plate, the ends of which pass through the inside of the pad. A protective cover is provided on the right end of the pad. A vertically movable support plate is provided on the outside of the pad. A pushing assembly for driving the support plate to move up and down is provided on the lower side of the bearing plate.
[0007] Furthermore, the pallet has a first opening in the middle, the inner wall of the first opening is in close contact with the outer wall of the pad, and movable rods are fixedly connected to the four lower corners of the pallet, with the lower ends of the movable rods passing through the four corners of the bearing plate respectively.
[0008] Furthermore, a storage box for collecting debris is movably disposed inside the left end of the support plate.
[0009] Furthermore, the pushing assembly includes a support plate fixedly connected to the lower sides of the left and right ends of the bearing plate, a U-shaped plate fixedly connected to the middle of the support plate, a second limiting rod fixedly connected to the inner side of the U-shaped plate, a slider that slides left and right at the left end of the second limiting rod, and a second pushing rod rotatably connected to the right side of both the front and rear ends of the slider, the end of the second pushing rod being rotatably connected to the lower side of the support plate.
[0010] Furthermore, the front and rear ends of the support plate are provided with second openings for the second push rod to pass through.
[0011] Furthermore, the pushing assembly also includes a T-shaped block fixedly connected to the right end of the U-shaped plate, an electric push rod fixedly connected to the left end of the T-shaped block, and the driving end of the electric push rod fixedly connected to the middle of the slider.
[0012] Furthermore, a gantry frame is fixedly connected to the upper center of the bearing plate, a hydraulic rod is fixedly connected to the center of the gantry frame, and a punch is fixedly connected to the drive end of the hydraulic rod.
[0013] This utility model has the following beneficial effects:
[0014] In this invention, the starting motor drives the bidirectional screw to rotate, thereby causing the threaded blocks at both ends to move towards the middle. The threaded blocks drive the first push rod to move, pushing the mounting plate and roller outward, so that they are tightly attached to the inner side of the C-shaped steel and fixed thereto. The upper side of the pad is tightly attached to the inner upper wall of the C-shaped steel. During punching, the pad supports the C-shaped steel, thereby preventing it from being dented or deformed due to punching.
[0015] In this invention, the electric push rod drives the second push rod to move via the slider, and the second push rod pushes the tray to move outside the pad, thereby adjusting the height of the part of the pad that extends from the middle of the tray so that it is in close contact with the inner wall of the C-shaped steel. The storage box can collect the debris generated by punching, which is convenient for subsequent centralized cleaning. Attached Figure Description
[0016] Figure 1 This is an overall schematic diagram of a C-shaped steel punching device proposed in this utility model;
[0017] Figure 2 This is a schematic diagram of the bearing plate of a C-shaped steel punching device proposed in this utility model;
[0018] Figure 3 This is a schematic diagram of the pad plate of a C-shaped steel punching device proposed in this utility model;
[0019] Figure 4 This is a schematic diagram of the U-shaped plate of a C-shaped steel punching device proposed in this utility model.
[0020] Legend:
[0021] 1. Bearing plate; 2. Pad plate; 3. Through hole; 4. Mounting plate; 5. Roller; 6. Slide groove; 7. Fixing block; 8. Double-acting screw; 9. Threaded block; 10. First push rod; 11. Motor; 12. First limit rod; 13. Cover plate; 14. Storage box; 15. Support plate; 16. Movable rod; 17. Support plate; 18. U-shaped plate; 19. Second limit rod; 20. Slider; 21. Second push rod; 22. T-shaped block; 23. Electric push rod; 24. First opening; 25. Second opening; 26. Gantry frame; 27. Hydraulic rod; 28. Punch. Detailed Implementation
[0022] 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.
[0023] Reference Figures 1-3 This utility model provides an embodiment of a C-shaped steel drilling device, comprising a bearing plate 1, a pad 2 fixedly connected to the upper center of the bearing plate 1, a through hole 3 provided in the upper center of the pad 2, mounting plates 4 provided on both the front and rear sides of the right end of the pad 2, rollers 5 rotatably connected to both ends of the mounting plates 4, a groove 6 provided in the middle of the right end of the pad 2, fixing blocks 7 fixedly connected to both ends of the right end of the pad 2 located in the groove 6, a bidirectional screw 8 rotatably connected to the middle of the fixing blocks 7, threaded blocks 9 threadedly connected to both ends of the bidirectional screw 8, a first push rod 10 rotatably connected to both the front and rear sides of the threaded blocks 9, the ends of the first push rod 10 rotatably connected to the outer side of the mounting plate 4, and a motor 11 installed on the right end of the pad 2, the drive end of the motor 11 being fixedly connected to... The top left end of the bidirectional screw 8 is connected to the mounting plate 4. The lower sides of both the left and right ends are fixedly connected to the first limiting rod 12. The end of the first limiting rod 12 passes through the inside of the pad 2. The right end of the pad 2 is provided with a cover plate 13 for protection. The left end of the bearing plate 1 is movably provided with a storage box 14 for collecting debris. The outside of the pad 2 is provided with a vertically movable support plate 15. The middle of the support plate 15 is provided with a first opening 24. The inner wall of the first opening 24 fits tightly with the outer wall of the pad 2. The four lower corners of the support plate 15 are fixedly connected to movable rods 16. The lower ends of the movable rods 16 pass through the four corners of the bearing plate 1. The middle of the upper side of the bearing plate 1 is fixedly connected to a gantry frame 26. The middle of the gantry frame 26 is fixedly connected to a hydraulic rod 27. The driving end of the hydraulic rod 27 is fixedly connected to a punch 28.
[0024] The operator pushes the C-shaped steel with its opening facing down from the right end of the pad 2 to the left, so that the upper surface of the pad 2 is completely in contact with the inner wall of the C-shaped steel. At this time, the starter motor 11 drives the bidirectional screw 8 to rotate, causing the threaded blocks 9 on both sides to move synchronously towards the middle. This, in turn, pushes the mounting plate 4 and rollers 5 outward through the first push rod 10 until the rollers 5 contact the inner walls on both sides of the C-shaped steel. The rollers 5 provide guidance during the pushing process and also help fix the C-shaped steel through frictional resistance, preventing it from shifting laterally during punching. The hydraulic rod 27 is activated to drive the punch 28 downward, punching... The punch 28 penetrates the web of the C-shaped steel to complete the punching operation. During the punching process, the through hole 3 area of the pad 2 provides support for the punch 28, ensuring that the punching force is evenly distributed and avoiding deformation of the C-shaped steel due to local stress concentration. The generated metal debris falls into the storage box 14 below through the through hole 3 for automatic collection. The storage box 14 can be pulled out from the left end of the pad 2 to clean the debris. The device effectively counteracts the radial force generated during punching through the rigid support of the inner pad 2 and the coordinated clamping of the roller 5, preventing the opening of the C-shaped steel from collapsing or the flange from warping.
[0025] Reference Figure 1 , Figure 2 and Figure 4 Support plates 17 are fixedly connected to the lower sides of both the left and right ends of the bearing plate 1. A U-shaped plate 18 is fixedly connected to the middle of the support plates 17. A second limiting rod 19 is fixedly connected to the inner side of the U-shaped plate 18. A slider 20 that slides left and right is provided at the left end of the second limiting rod 19. A second push rod 21 is rotatably connected to the right side of both the front and rear ends of the slider 20. The end of the second push rod 21 is rotatably connected to the lower side of the support plate 15. A second opening 25 for the second push rod 21 to pass through is provided at both the front and rear ends of the bearing plate 1. The pushing assembly also includes a T-shaped block 22 fixedly connected to the right end of the U-shaped plate 18. An electric push rod 23 is fixedly connected to the left end of the T-shaped block 22. The driving end of the electric push rod 23 is fixedly connected to the middle of the slider 20.
[0026] Height adjustment: The operator first adjusts the position of the support plate 15 according to the cross-sectional height of the C-shaped steel to be processed, so as to ensure that the upper surface of the pad 2 can fit tightly against the inner wall of the C-shaped steel, thereby playing a supporting role during the punching process and avoiding the problem of the C-shaped steel being dented due to impact force. The specific adjustment process is as follows: Start the electric push rod 23, push the slider 20 to move to the right along the second limit rod 19, and the slider 20 drives the second push rod 21 to move. Since the upper end of the second push rod 21 is hinged to the support plate 15, the support plate 15 rises smoothly under the guidance of the movable rod 16, thereby changing the exposed height of the pad 2 above the support plate 15 to adapt to C-shaped steel of different specifications.
[0027] Working principle: Before processing, the support plate 15 is adjusted according to the height of the C-shaped steel so that when the opening of the C-shaped steel faces downwards and covers the outside of the pad 2, the upper surface of the pad 2 is in close contact with the inner wall of the C-shaped steel. During adjustment, the electric push rod 23 is activated, which drives the slider 20 to move to the right outside the second limit rod 19. This, in turn, drives the second push rod 21 to move through the slider 20. The upper end of the second push rod 21 passes through the second opening 25 and is connected to the support plate 15. During the movement of the second push rod 21, the support plate 15 is raised, adjusting the height of the pad 2 located on the upper part of the support plate 15. When punching, the pad 2 is started from the right end of the pad 2. Push the C-shaped steel to the left so that it covers the pad 2; the hydraulic rod 27 is activated to drive the punch 28 to descend and punch the C-shaped steel. The debris generated by punching is collected in the storage box 14 through the through hole 3; the motor 11 is activated to drive the bidirectional screw 8 to rotate. The rotating bidirectional screw 8 drives the threaded blocks 9 at both ends to move towards the middle, thereby driving the first push rod 10 to move. The first push rod 10 pushes the mounting plate 4 and the rollers 5 to move outward, which is used to adjust the distance between the two rollers 5 so that it is the same as the inner width of the C-shaped steel. It plays a positioning and guiding role in the process of the C-shaped steel covering the pad 2 from the right end of the pad 2.
[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A C-shaped steel punching device, characterized in that, The system includes a support plate (1), a pad (2) fixedly connected to the upper middle part of the support plate (1), a through hole (3) provided in the upper middle part of the pad (2), mounting plates (4) provided on both the front and rear sides of the right end of the pad (2), rollers (5) rotatably connected to both the left and right ends of the mounting plates (4), a sliding groove (6) provided in the middle of the right end of the pad (2), fixing blocks (7) fixedly connected to both the left and right ends of the right end of the pad (2) located in the sliding groove (6), a bidirectional screw (8) rotatably connected to the middle of the fixing blocks (7), threaded blocks (9) threadedly connected to both the left and right ends of the bidirectional screw (8), and threaded blocks (9) rotatably connected to both the front and rear sides of the threaded blocks (9). The first push rod (10) is rotatably connected to the outside of the mounting plate (4). The right end of the pad (2) is equipped with a motor (11). The drive end of the motor (11) is fixedly connected to the top left end of the double screw (8). The lower sides of both the left and right ends of the mounting plate (4) are fixedly connected with a first limiting rod (12). The end of the first limiting rod (12) passes through the inside of the pad (2). The right end of the pad (2) is provided with a cover plate (13) for protection. The outside of the pad (2) is provided with a vertically movable support plate (15). The lower side of the bearing plate (1) is provided with a pushing component for driving the support plate (15) to move up and down.
2. The C-shaped steel drilling device according to claim 1, characterized in that: The pallet (15) has a first opening (24) in the middle. The inner wall of the first opening (24) fits tightly against the outer wall of the pad (2). Movable rods (16) are fixedly connected to the four lower corners of the pallet (15). The lower ends of the movable rods (16) pass through the four corners of the bearing plate (1).
3. The C-shaped steel drilling device according to claim 1, characterized in that: The left end of the support plate (1) is movably provided with a storage box (14) for collecting debris.
4. The C-shaped steel punching device according to claim 1, characterized in that: The pushing assembly includes a support plate (17) fixedly connected to the lower sides of the left and right ends of the bearing plate (1). A U-shaped plate (18) is fixedly connected to the middle of the support plate (17). A second limiting rod (19) is fixedly connected to the inner side of the U-shaped plate (18). A slider (20) that slides left and right is provided at the left end of the second limiting rod (19). A second pushing rod (21) is rotatably connected to the right side of both the front and rear ends of the slider (20). The end of the second pushing rod (21) is rotatably connected to the lower side of the support plate (15).
5. A C-shaped steel punching device according to claim 4, characterized in that: The front and rear ends of the bearing plate (1) are provided with a second opening (25) for the second push rod (21) to pass through.
6. A C-shaped steel punching device according to claim 4, characterized in that: The pushing assembly also includes a T-shaped block (22) fixedly connected to the right end of the U-shaped plate (18), and an electric push rod (23) fixedly connected to the left end of the T-shaped block (22). The driving end of the electric push rod (23) is fixedly connected to the middle of the slider (20).
7. A C-shaped steel drilling device according to claim 1, characterized in that: A gantry (26) is fixedly connected to the upper middle part of the bearing plate (1), a hydraulic rod (27) is fixedly connected to the middle part of the gantry (26), and a punch (28) is fixedly connected to the driving end of the hydraulic rod (27).