Ground flat steel T-shaped joint cold bending tool
By designing a cold bending tool for grounded flat steel T-joints, a rotating turntable and limit stakes are used to achieve horizontal bending of the flat steel, solving the problem that existing tools are difficult to form in one go, and improving construction efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SINOHYDRO BUREAU 11 CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-06-02
AI Technical Summary
The lack of specialized cold bending tools for grounding flat steel T-joints during construction made the operation difficult, preventing one-time forming and affecting the quality of the process and the construction progress.
A grounding flat steel T-joint cold bending tool was designed, comprising a first turntable, a second turntable, and a limiting post. The bending area is formed by the first and second annular locking grooves. The horizontal bending of the flat steel is achieved by the rotating first turntable and the second turntable rotating around the first turntable. The movement of the unbent section is restricted by the limiting post.
This method enables efficient and stable bending of the grounding flat steel, avoiding warping in the vertical plane and improving construction efficiency and quality.
Smart Images
Figure CN224309378U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of cold bending fixture technology, and in particular to a cold bending tool for a grounded flat steel T-joint. Background Technology
[0002] The laying of the grounding grid for wind turbine foundations, the construction of the equipotential rings within the tower, the laying of the grounding grid within the transformer substation foundation, and the grounding grid from the wind turbine to the transformer substation are all crucial construction processes in the new energy wind power generation industry. In particular, the overlapping requirements for the grounding flat steel are critical; the overlap length must be no less than twice the width of the flat steel, and the workmanship must be aesthetically pleasing. However, during construction, workers lack specialized tools for cold-bending and forming T-joints of the grounding flat steel, making operation difficult and preventing the achievement of a one-time forming effect. Multiple repetitions and adjustments are often necessary, which not only affects the process and quality but also increases work time and impacts the construction schedule. Utility Model Content
[0003] The purpose of this application is to provide a cold bending tool for a grounding flat steel T-joint to solve the above problems.
[0004] To achieve the above objectives, the technical solution of this application is as follows:
[0005] A cold bending tool for a T-shaped grounding flat steel joint includes a first turntable, a second turntable, and a limiting post. The first turntable has a first annular locking groove, and the second turntable has a second annular locking groove. The first annular locking groove and the second annular locking groove together form a bending area for bending the grounding flat steel. The second turntable is configured to rotate around the first turntable. The limiting post is used to abut against the unbent section of the grounding flat steel.
[0006] Preferably, it also includes an operating platform, on which the first turntable is rotatably mounted, and the limiting stake is fixedly mounted.
[0007] Preferably, the first turntable includes two spaced-apart first flanges, and the second turntable includes two spaced-apart second flanges; the area between the two first flanges and the area between the two second flanges together form the bending area.
[0008] Preferably, the first flange located above the second flange located above the first flange is connected by a connecting arm; a rotating arm extends radially from the second flange located above the second flange.
[0009] Preferably, the device further includes an upper clamping plate and a lower clamping plate. The lower side of the upper clamping plate is provided with a first limiting post corresponding to the center of the first flange, and the upper clamping plate is provided with a first clearance hole corresponding to the center of the second flange. The upper side of the lower clamping plate is provided with a second clearance hole corresponding to the center of the first flange, and the upper side of the lower clamping plate is provided with a second limiting post corresponding to the center of the second flange. The upper clamping plate is located above the first turntable, and the first limiting post passes through the first turntable, the second clearance hole, and the operating platform in sequence. The lower clamping plate is located below the second turntable, and the second limiting post passes through the second turntable and the first clearance hole in sequence.
[0010] Preferably, a first bearing is fitted on the first limiting post, and the outer ring of the first bearing is fitted into the center hole of the two first flanges; a second bearing is fitted on the second limiting post, and the outer ring of the second bearing is fitted into the center hole of the two second flanges.
[0011] Preferably, the operating platform is provided with platform fixing holes.
[0012] The grounding flat steel T-joint cold bending tool disclosed in this application can easily and efficiently bend the grounding flat steel by setting a rotating first turntable and a second turntable rotating around the first turntable. Moreover, due to the existence of the bending area formed by the first annular locking groove and the second annular locking groove, the grounding flat steel is restricted to bending only in the horizontal plane during the bending process, avoiding warping bending in the vertical plane, thus better ensuring the bending quality and ultimately improving work efficiency. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this application;
[0014] Figure 2 This is a top view of the overall structure of this application;
[0015] Figure 3 for Figure 2 Sectional view of section AA;
[0016] Figure 4 This is a schematic diagram showing the positional relationship between the operating platform, the upper clamping plate, and the lower clamping plate in this application.
[0017] Figure 5 This is a schematic diagram of the lower clamping plate structure in this application;
[0018] Figure 6 This is a schematic diagram of the upper clamping plate structure in this application;
[0019] Figure 7 This is a schematic diagram showing the connection relationship between the two first flanges, the two second flanges, the connecting arm, and the rotating arm in this application.
[0020] In the picture:
[0021] 1. First turntable; 10. First flange; 11. First annular snap-fit groove; 2. Second turntable; 20. Second flange; 21. Second annular snap-fit groove; 3. Bending area; 4. Upper clamping plate; 40. First limiting post; 41. First clearance hole; 5. Lower clamping plate; 50. Second limiting post; 51. Second clearance hole; 6. Operating platform; 60. Platform fixing hole; 61. Limiting post; 7. Rotating arm; 8. Connecting arm. Detailed Implementation
[0022] The present application will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the present application, and therefore only show the components relevant to the present application.
[0023] like Figure 1-7 As shown, a cold bending tool for a T-shaped grounding flat steel joint includes a first turntable 1, a second turntable 2, and a limiting post 61. The first turntable 1 is provided with a first annular locking groove 11, and the second turntable 2 is provided with a second annular locking groove 21. The first annular locking groove 11 and the second annular locking groove 21 together form a bending area 3 for bending the grounding flat steel. The second turntable 2 is configured to rotate around the first turntable 1, and the limiting post 61 is used to abut against the unbent section of the grounding flat steel.
[0024] The section of the grounding flat steel that bends, i.e., the section that moves 90° during the bending process, is defined as the bent section, while the section corresponding to the bent section in the bend-interval area 3 is the unbent section.
[0025] The second turntable 2 can rotate relative to the first turntable 1. Specifically, the motion is a circular motion with the center of the first turntable 1 as the center. During this process, the first turntable 1 can also rotate relative to itself.
[0026] The outer opening of the first annular snap-fit groove 11 is on the outer peripheral wall of the first turntable 1, and the outer opening of the second annular snap-fit groove 21 is also on the outer peripheral wall of the second turntable 2.
[0027] The first annular locking groove 11 and the second annular locking groove 21 are located on the same horizontal plane to ensure the placement of the grounding flat steel.
[0028] During the bending process, the second turntable 2 is subjected to external force and rotates relative to the first turntable 1. The grounding flat steel located in the bending area 3 gradually bends with the movement of the second turntable 2. The unbent section of the grounding flat steel is limited by the limiting pile 61 and cannot move with the second turntable 2, thus causing the grounding flat steel to bend.
[0029] By setting a rotating first turntable 1 and a second turntable 2 rotating around the first turntable 1, the grounding flat steel can be bent easily and efficiently. Because of the existence of the bending area 3 formed by the first annular locking groove 11 and the second annular locking groove 21, the grounding flat steel is limited to bending only in the horizontal plane during the bending process, avoiding warping bending in the vertical plane, thus better ensuring the bending quality and ultimately improving work efficiency.
[0030] In some further embodiments, an operating platform 6 is also included, on which the first turntable 1 is rotatably mounted, and the limiting stake 61 is fixedly mounted.
[0031] The operating platform 6 is the workbench, which can be a table supported by a steel plate.
[0032] The limit stake 61 can be installed on the operating platform 6 by welding.
[0033] In some further embodiments, the first turntable 1 includes two spaced-apart first flanges 10, and the second turntable 2 includes two spaced-apart second flanges 20; the area between the two first flanges 10 and the area between the two second flanges 20 together form a bending area 3.
[0034] In a specific embodiment, the first turntable 1 can be formed by welding two first flanges 10 together, and the second turntable 2 can be formed by welding two second flanges 20 together.
[0035] Preferably, the diameter of the first flange 10 is larger than the diameter of the second flange 20, so as to ensure that the structure of the entire fixture is more stable when the second turntable 2 rotates relative to the first turntable 1.
[0036] A gap is left between the two welded first flanges 10, and a similar gap is left between the two welded second flanges 20, so as to jointly form the bending area 3.
[0037] In some further embodiments, a first flange 10 located above and a second flange 20 located above are connected by a connecting arm 8; a rotating arm 7 extends radially from the second flange 20 located above.
[0038] Specifically, the first flange 10 and the second flange 20 are connected by a connecting arm 8, preferably by welding.
[0039] The second turntable 2 is equipped with a rotating arm 7, which is used by the operator to drive the rotation of the second turntable 2.
[0040] The rotating arm 7 and the connecting arm 8 are located on the same straight line to ensure coordination during the rotation process.
[0041] In some further embodiments, an upper clamping plate 4 and a lower clamping plate 5 are also included. The lower side of the upper clamping plate 4 is provided with a first limiting post 40 corresponding to the center of the first flange 10, and the upper clamping plate 4 is provided with a first clearance hole 41 corresponding to the center of the second flange 20. The upper side of the lower clamping plate 5 is provided with a second clearance hole 51 corresponding to the center of the first flange 10, and the upper side of the lower clamping plate 5 is provided with a second limiting post 50 corresponding to the center of the second flange 20. The upper clamping plate 4 is located on the upper side of the first turntable 1, and the first limiting post 40 passes through the first turntable 1, the second clearance hole 51 and the operating platform 6 in sequence. The lower clamping plate 5 is located on the lower side of the second turntable 2, and the second limiting post 50 passes through the second turntable 2 and the first clearance hole 41 in sequence.
[0042] The upper clamping plate 4 and the lower clamping plate 5 are used to further ensure the rotational continuity of the first turntable 1 and the second turntable 2, and at the same time, they can also provide a certain degree of limiting protection for the grounding flat steel.
[0043] The lower clamp 5 can also prevent friction between the first flange 10, the second flange 20 and the operating platform 6, and increase the service life of the first flange 10 and the second flange 20.
[0044] The operating platform 6 is provided with a connecting hole for the first limiting post 40 to pass through.
[0045] In some further embodiments, a first bearing is fitted on the first limiting post 40, and the outer ring of the first bearing is fitted into the central hole of the two first flanges 10; a second bearing is fitted on the second limiting post 50, and the outer ring of the second bearing is fitted into the central hole of the two second flanges 20.
[0046] By setting up a first bearing and a second bearing, the rotation of the first turntable 1 and the revolution of the second turntable 2 can be ensured to be smoother.
[0047] In some further embodiments, the operating platform 6 is provided with platform fixing holes 60.
[0048] The platform fixing hole 60 is used to pass through bolts and other connecting parts to fix the operating platform 6.
[0049] In some other embodiments, the diameter of the first flange 10 can be 145mm, the diameter of the second flange 20 can be 95mm, the size of the operating platform 6 can be 0.3m x 0.4m, and the length of the gripping rotating arm 7 can be set to 1.2m; in addition, the distance between the two first flanges 10 can be 7mm, the distance between the two second flanges 20 can also be 7mm, and the shortest distance between the first flange 10 and the second flange 20 can be 20mm.
[0050] Of course, in other embodiments, the size can be adjusted according to the actual situation.
[0051] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this application.
Claims
1. A cold bending tool for a grounded flat steel T-joint, characterized in that, The device includes a first turntable (1), a second turntable (2), and a limiting post (61). The first turntable (1) is provided with a first annular snap-fit groove (11), and the second turntable (2) is provided with a second annular snap-fit groove (21). The first annular snap-fit groove (11) and the second annular snap-fit groove (21) together form the bending area (3) of the bent grounding flat steel. The second turntable (2) is configured to rotate around the first turntable (1). The limiting post (61) is used to abut against the unbent section of the grounding flat steel.
2. The cold bending tool for the grounding flat steel T-joint according to claim 1, characterized in that, It also includes an operating platform (6), the first turntable (1) is rotatably mounted on the operating platform (6), and the limiting stake (61) is fixedly mounted on the operating platform (6).
3. The cold bending tool for the grounding flat steel T-joint according to claim 2, characterized in that, The first turntable (1) includes two spaced-apart first flanges (10), and the second turntable (2) includes two spaced-apart second flanges (20); the area between the two first flanges (10) and the area between the two second flanges (20) together form the bending area (3).
4. The cold bending tool for the grounding flat steel T-joint according to claim 3, characterized in that, The first flange (10) located above the second flange (20) is connected by a connecting arm (8); a rotating arm (7) extends radially on the second flange (20) located above the second flange.
5. The cold bending tool for the grounding flat steel T-joint according to claim 4, characterized in that, It also includes an upper clamping plate (4) and a lower clamping plate (5). The lower side of the upper clamping plate (4) is provided with a first limiting post (40) corresponding to the center of the first flange (10). The upper clamping plate (4) is provided with a first clearance hole (41) corresponding to the center of the second flange (20). The upper side of the lower clamping plate (5) is provided with a second clearance hole (51) corresponding to the center of the first flange (10). The upper side of the lower clamping plate (5) is provided with a second limiting post (50) corresponding to the center of the second flange (20). The upper clamping plate (4) is located on the upper side of the first turntable (1). The first limiting post (40) passes through the first turntable (1), the second clearance hole (51) and the operating platform (6) in sequence. The lower clamping plate (5) is located on the lower side of the second turntable (2). The second limiting post (50) passes through the second turntable (2) and the first clearance hole (41) in sequence.
6. The cold bending tool for the grounding flat steel T-joint according to claim 5, characterized in that, The first limiting post (40) is fitted with a first bearing, and the outer ring of the first bearing is fitted into the center hole of the two first flanges (10); the second limiting post (50) is fitted with a second bearing, and the outer ring of the second bearing is fitted into the center hole of the two second flanges (20).
7. The cold bending tool for grounding flat steel T-joints according to claim 6, characterized in that, The operating platform (6) is provided with platform fixing holes (60).