A positioning and welding tool for special-shaped components of a power transmission tower
By designing a positioning and welding fixture for irregularly shaped components of power transmission towers, and utilizing the cylinder drive and bevel gear meshing of the positioning and adjustment mechanisms, precise positioning and angle adjustment of irregularly shaped components are achieved. This solves the problem of low efficiency caused by multiple tooling preparations in existing technologies, and improves processing efficiency and adaptability.
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
- 2025-06-20
- Publication Date
- 2026-06-09
Smart Images

Figure CN224333791U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welding equipment technology, specifically to a positioning welding fixture for irregularly shaped components of power transmission towers. Background Technology
[0002] Transmission line towers, as an important component of large and complex lifeline systems, directly affect the country's production and construction and people's lives. Damage to transmission lines will lead to the paralysis of the power supply system and may cause secondary disasters such as fires, resulting in serious economic losses. Transmission tower systems are characterized by high structural flexibility, large conductor-to-ground wire spans, and strong nonlinearity.
[0003] In the current tower manufacturing process, it is necessary to weld irregularly shaped components at different angles so that they can fit tightly with other components, facilitating subsequent welding or bolting connections. Multiple welding fixtures are required for irregularly shaped components at different angles, which reduces work efficiency. Therefore, we propose a more convenient and practical welding fixture to meet practical needs. Utility Model Content
[0004] The purpose of this utility model is to provide a positioning and welding fixture for irregularly shaped components of power transmission towers, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a positioning and welding fixture for irregularly shaped components of a power transmission tower, comprising a positioning mechanism, an adjustment mechanism at the top of the positioning mechanism, the adjustment mechanism including a support plate, a slot on one side of the support plate, a lifting block slidably connected in the slot, a cylinder mounted on the top of the support plate, the output end of the cylinder being connected to the lifting block, a through hole on one side of the lifting block, a rotating shaft rotatably connected in the through hole, a first bevel gear fixedly connected to one end of the rotating shaft, a rotating plate fixedly connected to the other end, and an adjustment component on one side of the rotating plate.
[0006] Furthermore, the positioning mechanism includes a base, a positioning plate is fixedly connected to the top of the base, and through holes are opened on both sides of the top of the base. Guide rods are slidably connected in the through holes, and mounting seats are slidably connected to the outer walls of both ends of the guide rods.
[0007] Furthermore, a fixed frame is fixedly connected to both sides of the base, and a sliding block is slidably connected to the inner wall of one side of the fixed frame. The sliding block is connected to the support plate. A through hole is opened on one side of the fixed frame, and a lead screw is rotatably connected in the through hole. The lead screw and the sliding block are threaded together.
[0008] Furthermore, a second bevel gear is rotatably connected to one side of the lifting block, and the teeth of the second bevel gear mesh with those of the first bevel gear.
[0009] Furthermore, the adjustment assembly includes a rotating block, and a plurality of equidistant slots are provided on one side of the rotating plate. The rotating block rotates within the slots, and a through hole is provided on one side of the rotating block, with a screw threaded into the through hole.
[0010] Furthermore, a rotating ring is fixedly connected to one end of the screw, and a fixing block is fixedly connected to the other end. A clamping plate is rotatably connected to one side of the fixing block.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] This positioning and welding fixture for irregularly shaped components of power transmission towers, through the setting of a positioning mechanism and an adjustment mechanism, firstly moves the support plate to both sides of the component to be processed by the positioning mechanism. Then, the cylinder drives the lifting block to adjust the clamping height and make the rotating plate fit the component. Finally, the rotating ring is manually operated to clamp the irregular angle of the component under the action of the screw. At the same time, the clamping reverse is adjusted by the cooperation of the rotating block and the fixed block. Finally, the locking motor drives the second bevel gear to rotate, which in turn drives the first bevel gear and the rotating plate to rotate, adjusting the angle of the component. This device can adjust the position of the clamping plate, is easy to operate, and the clamping plate can rotate to fit the curved surface of the component, adapting to irregular contours. It is highly practical and suitable for promotion.
[0013] Meanwhile, the positioning mechanism can adapt to irregularly shaped components of different widths without the need to change tooling, making it highly versatile. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the positioning mechanism structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the adjustment mechanism of this utility model.
[0017] In the diagram: 1. Positioning mechanism; 101. Base; 102. Positioning plate; 103. Guide rod; 104. Mounting seat; 105. Fixing frame; 106. Sliding block; 107. Lead screw; 2. Adjustment mechanism; 201. Support plate; 202. Lifting block; 203. Cylinder; 204. Rotating shaft; 205. First bevel gear; 206. Second bevel gear; 207. Rotating plate; 208. Rotating block; 209. Screw; 210. Rotating ring; 211. Fixing block; 212. Clamping plate. Detailed Implementation
[0018] 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.
[0019] Welding fixtures are required during the assembly of power transmission towers. The welding fixture provided by this utility model is specifically designed for positioning irregularly shaped components during the assembly of power transmission towers. When using this equipment for positioning, it is necessary to ensure that the irregularly shaped components are completely aligned with the positioning mechanism 1 and the adjustment mechanism 2 to avoid deviations. When adjusting components such as the sliding block 106, lifting block 202, and clamping plate 212, the position of the irregularly shaped components should be carefully observed to ensure accurate positioning in all directions. When operating the welding fixture, protective glasses, gloves, and other personal protective equipment should be worn to avoid sparks or high-temperature burns. The welding fixture should be cleaned and maintained regularly, and severely worn parts should be replaced in a timely manner to maintain its good working condition.
[0020] like Figures 1-3 As shown, this utility model provides a technical solution: a positioning and welding fixture for irregularly shaped components of a power transmission tower, including a positioning mechanism 1, an adjustment mechanism 2 on the top of the positioning mechanism 1, the adjustment mechanism 2 including a support plate 201, a slot on one side of the support plate 201, a lifting block 202 slidably connected in the slot, a cylinder 203 installed on the top of the support plate 201, the output end of the cylinder 203 being connected to the lifting block 202, a through hole on one side of the lifting block 202, a rotating shaft 204 rotatably connected in the through hole, a first bevel gear 205 fixedly connected to one end of the rotating shaft 204, and a rotating plate 207 fixedly connected to the other end, an adjustment component on one side of the rotating plate 207.
[0021] like Figure 2 As shown, the positioning mechanism 1 includes a base 101, a positioning plate 102 fixedly connected to the top of the base 101, through holes on both sides of the top of the base 101, a guide rod 103 slidably connected in the through holes, mounting seats 104 slidably connected to the outer walls of both ends of the guide rod 103, a fixing frame 105 fixedly connected to both sides of the base 101, a sliding block 106 slidably connected to the inner wall of one side of the fixing frame 105, the sliding block 106 is connected to the support plate 201, a through hole is opened on one side of the fixing frame 105, a lead screw 107 is rotatably connected in the through hole, and the lead screw 107 and the sliding block 106 are threadedly connected.
[0022] It should be noted that during use, the component to be processed is first placed on the positioning plate 102, and then the position of the mounting base 104 is adjusted and fixed under the action of the guide rod 103. Finally, according to the width of the component, the motor drives the lead screw 107 to rotate, which drives the sliding block 106 to move along the fixed frame 105 to adjust the position of the support plate 201 and clamp the component. The positioning mechanism 1 can adapt to irregularly shaped components of different widths, without the need to change tooling, and has strong versatility.
[0023] like Figure 3 As shown, a second bevel gear 206 is rotatably connected to one side of the lifting block 202. The teeth of the second bevel gear 206 and the first bevel gear 205 mesh with each other. The adjusting assembly includes a rotating block 208. A plurality of equally spaced slots are opened on one side of the rotating plate 207. The rotating block 208 rotates in the slots. A through hole is opened on one side of the rotating block 208. A screw 209 is threadedly connected to the through hole. A rotating ring 210 is fixedly connected to one end of the screw 209, and a fixing block 211 is fixedly connected to the other end. A clamping plate 212 is rotatably connected to one side of the fixing block 211.
[0024] It should be noted that during use, the support plate 201 is first moved to both sides of the component to be processed by the positioning mechanism 1. Then, the cylinder 203 drives the lifting block 202 to adjust the clamping height and make the rotating plate 207 fit with the component. Finally, the rotating ring 210 is manually operated to clamp the irregular angle of the component by the clamping plate 212 under the action of the screw 209. At the same time, the clamping reverse is adjusted by the cooperation of the rotating block 208 and the fixing block 211. Finally, the locking motor drives the second bevel gear 206 to rotate, which drives the first bevel gear and the rotating plate 207 to rotate, adjusting the angle of the component. The adjusting mechanism 2 realizes the precise rotation of the rotating shaft 204 through the meshing of the bevel gear, which drives the rotating plate 207 to adjust the angle, meeting the complex spatial positioning requirements of the irregular component.
[0025] During use, the component to be processed is first placed on the positioning plate 102. Then, under the action of the guide rod 103, the position of the mounting base 104 is adjusted and fixed. Finally, according to the width of the component, the motor drives the lead screw 107 to rotate, which drives the sliding block 106 to move along the fixed frame 105 to adjust the position of the support plate 201 and clamp the component. Then, the cylinder 203 drives the lifting block 202 to move and adjust the clamping height, and make the rotating plate 207 fit with the component. Finally, the rotating ring 210 is manually operated to make the clamping plate 212 clamp the irregular angle of the component under the action of the screw 209. At the same time, the clamping direction is adjusted by the cooperation of the rotating block 208 and the fixed block 211. Finally, the locking motor drives the second bevel gear 206 to rotate, which drives the first bevel gear and the rotating plate 207 to rotate and adjust the angle of the component. This device can adjust the position of the clamping plate 212, is easy to operate, and the clamping plate 212 can rotate to fit the curved surface of the component and adapt to the irregular contour.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.
Claims
1. A positioning and welding fixture for irregularly shaped components of a power transmission tower, comprising a positioning mechanism (1), characterized in that: The positioning mechanism (1) is provided with an adjustment mechanism (2) at the top. The adjustment mechanism (2) includes a support plate (201). A slot is provided on one side of the support plate (201). A lifting block (202) is slidably connected in the slot. A cylinder (203) is installed on the top of the support plate (201). The output end of the cylinder (203) is connected to the lifting block (202). A through hole is provided on one side of the lifting block (202). A rotating shaft (204) is rotatably connected in the through hole. A first bevel gear (205) is fixedly connected to one end of the rotating shaft (204), and a rotating plate (207) is fixedly connected to the other end. An adjustment component is provided on one side of the rotating plate (207).
2. The positioning and welding fixture for irregularly shaped components of a power transmission tower according to claim 1, characterized in that: The positioning mechanism (1) includes a base (101), a positioning plate (102) is fixedly connected to the top of the base (101), and through holes are opened on both sides of the top of the base (101). A guide rod (103) is slidably connected in the through holes, and mounting seats (104) are slidably connected to the outer walls of both ends of the guide rod (103).
3. The positioning and welding fixture for irregularly shaped components of a power transmission tower according to claim 2, characterized in that: The base (101) is fixedly connected to two sides of a fixed frame (105). A sliding block (106) is slidably connected to the inner wall of one side of the fixed frame (105). The sliding block (106) is connected to the support plate (201). A through hole is opened on one side of the fixed frame (105). A lead screw (107) is rotatably connected in the through hole. The lead screw (107) and the sliding block (106) are threadedly connected.
4. The positioning and welding fixture for irregularly shaped components of a power transmission tower according to claim 1, characterized in that: The lifting block (202) is rotatably connected to a second bevel gear (206) on one side, and the teeth of the second bevel gear (206) and the first bevel gear (205) mesh with each other.
5. The positioning and welding fixture for irregularly shaped components of a power transmission tower according to claim 1, characterized in that: The adjustment assembly includes a rotating block (208). The rotating plate (207) has multiple equally spaced slots on one side. The rotating block (208) rotates in the slots. A through hole is provided on one side of the rotating block (208), and a screw (209) is threaded into the through hole.
6. The positioning and welding fixture for irregularly shaped components of a power transmission tower according to claim 5, characterized in that: One end of the screw (209) is fixedly connected to a rotating ring (210), and the other end is fixedly connected to a fixing block (211). A clamping plate (212) is rotatably connected to one side of the fixing block (211).