A special node angle steel bending forming tool for double-circuit straight tower

CN224333178UActive Publication Date: 2026-06-09KUNMING ZHANYE POWER CIRCUIT DEVICES & MATERIALS MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KUNMING ZHANYE POWER CIRCUIT DEVICES & MATERIALS MFG CO LTD
Filing Date
2025-07-21
Publication Date
2026-06-09

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Abstract

The utility model relates to double circuit linear tower special node angle steel bending forming frock technical field discloses a kind of for double circuit linear tower special node angle steel bending forming frock, including workbench, the rear wall of the workbench is fixedly connected with, the top of the workbench is fixedly connected with support seat, the outer wall of the workbench is fixedly connected with support plate, the bottom of the workbench is provided with camber adjusting assembly, the top of the support plate is provided with moving assembly, the moving assembly includes motor, the output shaft of the motor is fixedly connected with threaded rod, the outer wall of the threaded rod is fixedly connected with bracket by thread sleeve. In the utility model, by setting motor, threaded rod, bracket, starting motor, so that bracket moves on the outer wall of threaded rod, the position of roll is adjusted, the way of realizing through real-time control roll distance is realized, and the machining operation of flexible realization to circular arc, semicircle and other shape workpieces.
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Description

Technical Field

[0001] This utility model relates to the technical field of bending and forming fixtures for special node angle steel of double-loop straight towers, and in particular to a bending and forming fixture for special node angle steel of double-loop straight towers. Background Technology

[0002] A double-circuit straight-line tower refers to a tower that supports two-circuit overhead transmission lines. Its conductors are arranged vertically and are often distributed between tension towers. It is widely used, especially in flat areas. This type of tower is characterized by a large number of conductors and is usually used in high-voltage and high-power transmission scenarios.

[0003] Crossarms in double-circuit straight-line towers typically require bending to accommodate conductor arrangement and tension requirements. The bending design of the crossarms ensures conductor stability when vertically aligned and effectively distributes and withstands conductor stress. The tower head structure also needs to consider bending to ensure stability and safety under extreme weather conditions. The bending design of the tower head reduces the impact of wind and icing on the tower structure, improving overall wind and ice resistance.

[0004] While the above-mentioned technologies have achieved the processing of steel bending in double-loop straight towers, in actual use, the curvature and shape requirements of different steel components in double-loop straight towers vary, requiring targeted processing. Therefore, a tooling for bending and forming special node angle steel in double-loop straight towers is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a bending and forming tooling for special node angle steel in double-loop straight towers, which aims to solve the problem that in the prior art, different steel components in double-loop straight towers have different requirements for curvature and shape when bending, and need to be processed in a targeted manner.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a tooling for bending and forming angle steel at special nodes of a double-loop straight tower, comprising a workbench, a vertical plate fixedly connected to the rear wall of the workbench, a support base fixedly connected to the top of the workbench, a support plate fixedly connected to the outer wall of the workbench, an arc adjustment component provided at the bottom of the workbench, and a moving component provided at the top of the support plate.

[0007] The moving component includes a first motor, the output shaft of which is fixedly connected to a threaded rod. The outer wall of the threaded rod is fixedly connected to a bracket via a threaded sleeve. A bracket is provided on the top of the worktable. A rotating shaft is rotatably connected inside the bracket. A roller is fixedly connected to the outer wall of the rotating shaft. A second motor is fixedly connected to the outer wall of the rotating shaft. A moving plate is fixedly connected to the bottom of the second motor. A sliding groove is provided inside the upright plate. An arc-shaped groove is provided inside the worktable.

[0008] As a further description of the above technical solution:

[0009] The bottom of the bracket is slidably connected to the inside of the slide rail, the outer wall of the moving plate is slidably connected to the inside of the slide groove, and the outer wall of the rotating shaft is slidably connected to the inside of the arc groove.

[0010] As a further description of the above technical solution:

[0011] The outer wall of the threaded rod is rotatably connected to the inside of the support seat. Two sets of support seats are provided, and the two sets of support seats are distributed in a mirror image along the central axis of the threaded rod.

[0012] As a further description of the above technical solution:

[0013] The No. 1 motor is provided in two sets, and the two sets of No. 1 motors are distributed in a mirror image along the central axis of the worktable.

[0014] As a further description of the above technical solution:

[0015] The arc adjustment assembly includes an electric telescopic rod, the output shaft of which is fixedly connected to a fixed block, the top of which is fixedly connected to a vertical block, a second roller element rotatably connected to the outer wall of the vertical block, and a first roller element rotatably connected to the outer wall of the vertical block.

[0016] As a further description of the above technical solution:

[0017] The outer wall of the upright block is slidably connected to the outer wall of the upright plate.

[0018] As a further description of the above technical solution:

[0019] The rear wall of the second roller element is fixedly connected to the third motor, and the bottom of the third motor is fixedly connected to the sliding plate.

[0020] As a further description of the above technical solution:

[0021] The outer wall of the sliding plate is slidably connected to the rear wall of the worktable.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by setting up a No. 1 motor, a threaded rod, and a bracket, starting the No. 1 motor causes the bracket to move on the outer wall of the threaded rod, thereby adjusting the position of the roller. This enables flexible processing of workpieces with shapes such as arcs and semicircles by adjusting the roller gap in real time.

[0024] 2. In this utility model, by setting up an electric telescopic rod, a fixed block, and a vertical block, and activating the electric telescopic rod, the fixed block and the vertical block move up and down, thereby realizing the ability to flexibly complete the processing of workpieces with large and small bending arcs by adjusting the height of the rollers in real time. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a special node angle steel bending and forming tool for a double-loop straight tower proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the moving component of a bending and forming fixture for special node angle steel of a double-loop straight tower proposed in this utility model.

[0027] Figure 3 This is a schematic diagram of the structure behind the workbench of a special node angle steel bending and forming tool for a double-loop straight tower proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the arc adjustment component of a bending and forming tooling for special node angle steel of a double-loop straight tower proposed in this utility model.

[0029] Legend:

[0030] 1. Workbench; 2. Vertical plate; 3. Support plate; 4. Moving assembly; 41. Motor No. 1; 42. Threaded rod; 43. Bracket; 44. Slide rail; 45. Motor No. 2; 46. Moving plate; 47. Arc groove; 48. Slide groove; 5. Support base; 6. Curvature adjustment assembly; 61. Electric telescopic rod; 62. Fixed block; 63. Vertical block; 64. Motor No. 3; 65. Sliding plate; 7. Rotating shaft; 8. Roller; 9. Roller No. 1 element; 10. Roller No. 2 element. Detailed Implementation

[0031] 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.

[0032] Reference Figures 1-3The present invention provides an embodiment of a tooling for bending and forming angle steel at special nodes of a double-loop straight tower, comprising a workbench 1, a vertical plate 2 fixedly connected to the rear wall of the workbench 1, a support seat 5 fixedly connected to the top of the workbench 1 to support and fix a threaded rod 42, ensuring that the threaded rod 42 remains stable during rotation and does not shake, a support plate 3 fixedly connected to the outer wall of the workbench 1, an arc adjustment component 6 provided at the bottom of the workbench 1, and a moving component 4 provided at the top of the support plate 3;

[0033] The moving component 4 includes a primary motor 41, whose output shaft is fixedly connected to a threaded rod 42. The threaded rod 42 converts the rotational motion of the primary motor 41 into the linear motion of the support 43, achieving precise displacement control through threaded transmission. The outer wall of the threaded rod 42 is fixedly connected to the support 43 via a threaded sleeve. The top of the worktable 1 has a support 43, and the inside of the support 43 is rotatably connected to a rotating shaft 7 that provides rotational support for the roller 8, allowing the roller 8 to rotate flexibly, contacting the angle steel and applying bending force. The outer wall of the rotating shaft 7 is fixedly connected to the roller 8, and the outer wall of the rotating shaft 7 is fixedly connected to a secondary motor 45. The bottom of the secondary motor 45 is fixedly connected to a moving plate 46, which slides within a slide groove 48. The auxiliary rotating shaft 7 remains stable during arc-shaped movement to prevent deviation. The interior of the upright plate 2 has a sliding groove 48, and the interior of the worktable 1 has an arc-shaped groove 47. The bottom of the support 43 is slidably connected to the interior of the slide rail 44. The outer wall of the moving plate 46 is slidably connected to the interior of the sliding groove 48, and the outer wall of the rotating shaft 7 is slidably connected to the interior of the arc-shaped groove 47. Motor 41 drives the threaded rod 42 to rotate, which in turn drives the support 43 to move laterally along the slide rail 44 via the threaded sleeve. The two sets of motors 41 can work synchronously or asynchronously to achieve symmetrical or asymmetrical adjustment of the rollers 8 on both sides, adapting to different bending requirements. Motor 45 drives the rotating shaft 7 to rotate, causing the rollers 8 to rotate around the arc-shaped groove 47, adjusting the contact angle between the rollers 8 and the angle steel. Simultaneously, the moving plate 46 slides along the sliding groove 48 to ensure the stability of the rotating shaft 7 during arc-shaped movement.

[0034] Reference Figures 2-4The outer wall of the threaded rod 42 is rotatably connected to the inside of the support base 5. Two sets of support bases 5 are provided, mirror-distributed along the central axis of the threaded rod 42. This mirror distribution ensures uniform force distribution on the threaded rod 42, enhancing its stability during operation and facilitating the symmetrical arrangement of the moving assembly 4. Two sets of first motors 41 are provided, mirror-distributed along the central axis of the worktable 1. The arc adjustment assembly 6 includes an electric telescopic rod 61. The output shaft of the electric telescopic rod 61 is fixedly connected to a fixing block 62. A vertical block 63 is fixedly connected to the top of the fixing block 62, providing mounting support for the first roller element 9 and the second roller element 10, and also serving as the carrier for the movement of these components. The outer wall of the vertical block 63 is rotatably connected to the second roller element 10. The outer wall of block 63 is rotatably connected to roller element 9. Roller element 10 cooperates with roller element 9 to apply bending moment to the angle steel. Rolling friction is generated by its own rotation. The outer wall of block 63 is slidably connected to the outer wall of vertical plate 2. Motor 64 is fixedly connected to the rear wall of roller element 10. Sliding plate 65 is fixedly connected to the bottom of motor 64. The outer wall of sliding plate 65 is slidably connected to the rear wall of workbench 1. Electric telescopic rod 61 pushes fixed block 62 up and down, causing block 63, roller element 9 and roller element 10 to move up and down, adjusting the support height of angle steel and affecting the bending fulcrum position. Motor 64 drives roller element 10 to rotate, which cooperates with roller element 9 to form rolling friction and apply bending moment to the angle steel.

[0035] Working principle: During use, motor 41 drives threaded rod 42 to rotate, which in turn drives bracket 43 to move laterally along slide rail 44 via threaded sleeve. The two sets of motors 41 can work synchronously or asynchronously to achieve symmetrical or asymmetrical adjustment of the rollers 8 on both sides to adapt to different bending requirements. Motor 45 drives shaft 7 to rotate, which in turn drives roller 8 to rotate around arc groove 47, adjusting the contact angle between roller 8 and angle steel. At the same time, moving plate 46 slides along slide groove 48 to ensure the stability of shaft 7 in arc movement. Electric telescopic rod 61 pushes fixed block 62 up and down, which drives upright block 63, roller element 9 and roller element 10 to move up and down, adjusting the support height of angle steel and affecting the bending fulcrum position. Motor 64 drives roller element 10 to rotate, which cooperates with roller element 9 to form rolling friction, applying bending torque to the angle steel.

[0036] 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 tooling for bending and forming special node angle steel of a double-loop straight tower, comprising a workbench (1), characterized in that: The workbench (1) has a vertical plate (2) fixedly connected to its rear wall, a support base (5) fixedly connected to its top, a support plate (3) fixedly connected to its outer wall, an arc adjustment component (6) provided at the bottom of the workbench (1), and a moving component (4) provided at the top of the support plate (3). The moving component (4) includes a first motor (41), the output shaft of the first motor (41) is fixedly connected to a threaded rod (42), the outer wall of the threaded rod (42) is fixedly connected to a bracket (43) through a threaded sleeve, the top of the workbench (1) is provided with a bracket (43), the inside of the bracket (43) is rotatably connected to a rotating shaft (7), the outer wall of the rotating shaft (7) is fixedly connected to a roller (8), the outer wall of the rotating shaft (7) is fixedly connected to a second motor (45), the bottom of the second motor (45) is fixedly connected to a moving plate (46), the inside of the upright plate (2) is provided with a sliding groove (48), and the inside of the workbench (1) is provided with an arc groove (47).

2. The fixture for bending and forming special node angle steel of a double-loop straight tower according to claim 1, characterized in that: The bottom of the bracket (43) is slidably connected to the inside of the slide rail (44), the outer wall of the moving plate (46) is slidably connected to the inside of the slide groove (48), and the outer wall of the rotating shaft (7) is slidably connected to the inside of the arc groove (47).

3. The fixture for bending and forming special node angle steel of a double-loop straight tower according to claim 1, characterized in that: The outer wall of the threaded rod (42) is rotatably connected to the inside of the support seat (5). The support seat (5) is provided in two sets, and the two sets of support seats (5) are distributed in a mirror image along the central axis of the threaded rod (42).

4. The fixture for bending and forming special node angle steel of a double-loop straight tower according to claim 1, characterized in that: The No. 1 motor (41) is provided in two sets, and the two sets of No. 1 motors (41) are distributed in a mirror image along the central axis of the worktable (1).

5. The fixture for bending and forming special node angle steel of a double-loop straight tower according to claim 1, characterized in that: The arc adjustment assembly (6) includes an electric telescopic rod (61), the output shaft of which is fixedly connected to a fixed block (62), the top of which is fixedly connected to a vertical block (63), the outer wall of which is rotatably connected to a second roller element (10), and the outer wall of which is rotatably connected to a first roller element (9).

6. The tooling for bending and forming special node angle steel of a double-loop straight tower according to claim 5, characterized in that: The outer wall of the block (63) is slidably connected to the outer wall of the plate (2).

7. The fixture for bending and forming special node angle steel of a double-loop straight tower according to claim 5, characterized in that: The rear wall of the second roller element (10) is fixedly connected to the third motor (64), and the bottom of the third motor (64) is fixedly connected to the sliding plate (65).

8. The bending and forming fixture for special node angle steel of a double-loop straight tower according to claim 7, characterized in that: The outer wall of the sliding plate (65) is slidably connected to the rear wall of the workbench (1).