Tower foot welding positioning device

Abstract

The utility model discloses a tower foot welding and positioning device in the technical field of electric power iron towers. The device comprises a welding platform, and a positioning frame is arranged above the welding platform; the welding platform is provided with a lower positioning assembly for positioning a tower foot bottom plate, and the positioning frame is provided with an upper positioning assembly for positioning a cross-shaped tower foot. The upper positioning assembly comprises four positioning plates, the cross section of each positioning plate is in an L shape, and the four positioning plates are arranged in a central symmetry mode. A cross-shaped positioning channel is formed among the four positioning plates, and the cross-shaped tower foot is vertically inserted into the positioning channel; each positioning plate is provided with a jacking air cylinder, the four jacking air cylinders are arranged in a central symmetry mode, cylinder barrels of the jacking air cylinders are transversely arranged on the positioning frame, piston rods of the jacking air cylinders are connected with the right-angle turning positions of the positioning plates, and the jacking air cylinders drive the positioning plates to transversely move. The positioning plate has a right angle, and the moving direction of the positioning plate is the angular bisector direction of the right angle. The welding tool has the advantage that the welding perpendicularity is improved.

Description

Technical Field

[0001] This utility model relates to the field of power transmission tower technology, and in particular to a tower foot welding positioning device. Background Technology

[0002] The tower legs of a power transmission tower are assembled from several steel plates welded together, including the cross-shaped tower legs and the base plate. Generally, the cross-shaped tower legs are welded first, and then the cross-shaped tower legs are welded to the base plate. Since the structure of the tower legs directly affects the stability and service life of the power transmission tower, the structure of the tower legs must be ensured during welding. Therefore, the position of the base plate needs to be fixed, usually by bolting. Then the cross-shaped tower legs are placed on the base plate and welded. Because the cross-shaped tower legs are welded vertically to the base plate, deformation will occur during welding, which will cause the cross-shaped tower legs to tilt or shift. It is impossible to ensure the perpendicularity of the weld between the cross-shaped tower legs and the base plate, thus affecting the stability of the power transmission tower. Utility Model Content

[0003] The purpose of this invention is to provide a tower foot welding positioning device to improve welding verticality.

[0004] To achieve the above-mentioned objectives, the tower leg welding positioning device of this utility model adopts the following technical solution:

[0005] A tower foot welding positioning device includes a welding platform with a positioning frame above it. The welding platform has a lower positioning component for positioning the tower foot base plate, and the positioning frame has an upper positioning component for positioning the cross-shaped tower foot. The upper positioning component includes four vertically arranged positioning plates, each with a vertically oriented side surface and an L-shaped cross-section. The four positioning plates are arranged in a centrally symmetrical manner. A cross-shaped positioning channel is formed between the four positioning plates. The cross-shaped tower foot is vertically inserted into the positioning channel, with its side surface contacting the side surface of the positioning plate and its bottom surface contacting the tower foot base plate. Each positioning plate has a clamping cylinder that presses it against the side surface of the cross-shaped tower foot. The four clamping cylinders are arranged in a centrally symmetrical manner, with their cylinder barrels horizontally mounted on the positioning frame. The piston rod of the clamping cylinder is connected to the right-angle bend of the positioning plate, and the clamping cylinder drives the positioning plate to move horizontally. The positioning plate has a right angle, and the direction of movement of the positioning plate is the bisector of the right angle.

[0006] Preferably, the lower positioning component includes positioning holes on the welding platform, mounting holes at the four corners of the tower foot base plate, and fasteners passing through the mounting holes and positioning holes for locking.

[0007] Preferably, the positioning frame has four guide seats, each guide seat has two symmetrically arranged guide grooves, which are arranged laterally. One end of the positioning plate is slidably mounted in the guide groove of one of the guide seats, and the other end of the positioning plate is slidably mounted in the guide groove of the adjacent guide seat. The end of the positioning plate can move laterally along the guide groove. The guide grooves guide the movement of the positioning plate, ensuring that the positioning plate moves along the bisector of its right angle.

[0008] Preferably, a support column is provided between the positioning frame and the welding platform, and the support column is located at the four corners of the positioning frame.

[0009] Preferably, a gap is left between the bottom of the positioning plate and the welding platform. By leaving a gap between the bottom of the positioning plate and the welding platform, the weld between the cross-shaped tower feet and the base plate of the tower feet is not obstructed, thus facilitating welding.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This utility model uses four positioning plates to clamp the cross tower foot. The cross-section of the positioning plate is set in an L shape. The L-shaped structure is matched with the right-angle bend of the cross tower foot. Under the action of the clamping cylinder, the positioning plate clamps the right-angle side of the cross tower foot. At the same time, the pressing force point of the piston rod of the clamping cylinder is the right-angle bend of the positioning plate, thereby pressing the right-angle bend of the cross tower foot. Combined with the pressing of the right-angle side of the cross tower foot, the cross tower foot is always in a vertical state, avoiding the cross tower foot from tilting or displacing during the welding process, and further improving the perpendicularity of the welding between the cross tower foot and the tower foot base plate.

[0012] 2. When operating this utility model, simply place the cross tower feet through the positioning channel onto the tower foot base plate, and then drive the four clamping cylinders to work. It is simple to operate and practical. Attached Figure Description

[0013] Figure 1 This is the front view of the present invention;

[0014] Figure 2 for Figure 1 Top view;

[0015] Figure 3 This is a cross-sectional view of the present invention.

[0016] The components include: 1. Welding platform; 2. Support column; 3. Positioning frame; 4. Tightening cylinder; 5. Positioning plate; 6. Guide seat; 7. Cross tower foot; 8. Fastener; 9. Tower foot base plate; and 10. Guide groove. Detailed Implementation

[0017] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are only for illustrating the present invention and not for limiting the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0018] like Figure 1-3 As shown, a tower foot welding positioning device includes a welding platform 1, with a positioning frame 3 above the welding platform 1; support columns 2 are provided between the positioning frame 3 and the welding platform 1, and the support columns 2 are located at the four corners of the positioning frame 3; the welding platform 1 has a lower positioning component for positioning the tower foot base plate 9, and the positioning frame 3 has an upper positioning component for positioning the cross-shaped tower foot 7; the lower positioning component includes positioning holes provided on the welding platform 1, and mounting holes are provided at the four corners of the tower foot base plate 9, with fasteners 8 passing through the mounting holes and positioning holes for locking; the upper positioning component includes four vertically arranged positioning plates 5, with a gap between the bottom of the positioning plates and the welding platform, the sides of the positioning plates 5 being set as vertical planes, the cross-section of the positioning plates 5 being set as L-shaped, and the four positioning plates 5 being arranged in a centrally symmetrical manner; a cross-shaped positioning channel is formed between the four positioning plates 5, and the cross-shaped tower foot 7 is vertically inserted. Inside the positioning channel, the side of the cross-shaped tower foot 7 contacts the side of the positioning plate 5, and the bottom of the cross-shaped tower foot 7 contacts the tower foot base plate 9. Each positioning plate 5 is equipped with a clamping cylinder 4 that clamps it against the side of the cross-shaped tower foot 7. The four clamping cylinders are arranged symmetrically in a central manner. The cylinder barrel of the clamping cylinder 4 is horizontally set on the positioning frame 3. The piston rod of the clamping cylinder 4 is connected to the right-angle bend of the positioning plate 5. The clamping cylinder 4 drives the positioning plate 5 to move laterally. The positioning plate has a right angle, and the direction of movement of the positioning plate is the bisector of the right angle. The positioning frame 3 is equipped with four guide seats 6. Each guide seat 6 is equipped with two symmetrically arranged guide grooves 10. The guide grooves 10 are arranged laterally. One end of the positioning plate 5 is slidably installed in the guide groove 10 of one of the guide seats 6, and the other end of the positioning plate 5 is slidably installed in the guide groove 10 of the adjacent other guide seats 6. The end of the positioning plate 5 can move laterally along the guide groove 10.

[0019] The specific working process and principle of this utility model are as follows: First, the base plate 9 of the tower foot is locked onto the welding platform 1 by fasteners 8. Then, the cross tower foot 7 is placed on the base plate 9, and four clamping cylinders 4 are driven to work. The clamping cylinders 4 drive four positioning plates 5 to clamp the cross tower foot 7. The cross section of the positioning plate 5 is set in an L shape. The L-shaped structure is matched with the right-angle bend of the cross tower foot 7. Under the action of the clamping cylinders 4, the positioning plates 5 clamp the right-angle side of the cross tower foot 7. At the same time, the pressing force point of the piston rod of the clamping cylinder 4 is the right-angle bend of the positioning plate 5, thereby pressing the right-angle bend of the cross tower foot 7. Combined with the pressing of the right-angle side of the cross tower foot 7, the cross tower foot 7 is always in a vertical state, avoiding the cross tower foot 7 from tilting or displacing during the welding process, and further improving the perpendicularity of the welding between the cross tower foot 7 and the base plate 9.

[0020] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] The foregoing description illustrates and describes preferred embodiments of the present invention. As previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A tower foot welding positioning device, characterized by: The welding platform is provided with a positioning frame above it; the welding platform is provided with a lower positioning assembly for positioning the tower foot bottom plate, and the positioning frame is provided with an upper positioning assembly for positioning the cross-shaped tower foot; the upper positioning assembly comprises four vertically arranged positioning plates, the side surface of the positioning plate is arranged as a vertical plane, the cross section of the positioning plate is arranged as an L shape, and the four positioning plates are arranged in a central symmetrical manner; a cross-shaped positioning channel is formed between the four positioning plates, the cross-shaped tower foot is vertically inserted into the positioning channel, the side surface of the cross-shaped tower foot is in contact with the side surface of the positioning plate, and the bottom of the cross-shaped tower foot is in contact with the tower foot bottom plate; each positioning plate is provided with a clamping cylinder for clamping it on the side surface of the cross-shaped tower foot, the four clamping cylinders are arranged in a central symmetrical manner, the cylinder barrel of the clamping cylinder is transversely arranged on the positioning frame, the piston rod of the clamping cylinder is connected to the right-angled bend of the positioning plate, and the clamping cylinder drives the positioning plate to move transversely; the positioning plate has a right angle, and the moving direction of the positioning plate is the angle bisector direction of the right angle.

2. The tower foot weld positioning device of claim 1, wherein: The lower positioning assembly comprises a positioning hole arranged on the welding platform, and the four corner positions of the tower foot bottom plate are provided with mounting holes, and the fasteners pass through the mounting holes and the positioning holes to be locked.

3. The tower foot weld positioning device of claim 1, wherein: The positioning frame is provided with four guide seats, each guide seat is provided with two symmetrically arranged guide grooves, the guide grooves are transversely arranged, one end of the positioning plate is slidably installed in the guide groove of one of the guide seats, the other end of the positioning plate is slidably installed in the guide groove of the adjacent guide seat, and the end of the positioning plate can move transversely along the guide groove.

4. The tower foot weld positioning device of claim 1, wherein: Support columns are arranged between the positioning frame and the welding platform, and the support columns are arranged at the four corner positions of the positioning frame.

5. The tower foot weld positioning device of claim 1, wherein: A space is left between the bottom of the positioning plate and the welding platform.

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