Positioning clamp tool for angle steel tower welding

Abstract

The utility model relates to the technical field of positioning clamp tools for angle steel tower welding, and discloses a positioning clamp tool for angle steel tower welding, which comprises a left rotating plate, a rotating opening is formed in the side surface of the left rotating plate, clamping grooves are formed in the side surfaces of the left rotating plate and the right rotating plate, and hinges are fixedly connected to the side surfaces of the clamping grooves in an axial symmetry manner. The side face of the hinge is fixedly connected with a clamping assembly. According to the positioning clamp tool for angle steel tower welding, through the arrangement of the clamping assembly, two steel plates are placed on clamping grooves in the side faces of a left rotating plate and a right rotating plate correspondingly, clamping plates are rotated to be attached to the side faces of the steel plates, then limiting rods are screwed, the limiting rods rotate through bearings, and the limiting rods can be clamped outside limiting holes in the side faces of the clamping plates due to angle changes of the limiting rods; and the clamping plates press and fix the steel plates to the side faces of the clamping grooves, so that the steel plates are firmly clamped, and the situation that welding deformation is caused by shaking in the welding process, and the overall firmness of the angle steel tower is affected is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of a positioning fixture tool for welding an angle steel tower, in particular to a positioning fixture tool for welding an angle steel tower. Background Art

[0002] Transmission line towers are referred to as power towers. Their structural characteristics are that all types of towers belong to space truss structures. The rods are mainly composed of single equilateral angle steel or combined angle steel. The entire tower is composed of angle steel, connecting steel plates and bolts. Individual parts such as tower feet are welded into a combination of several steel plates. Due to insufficient design strength, some transmission towers are prone to tower collapse accidents in extreme weather, posing a great threat to the safety of the power grid. It is an effective treatment measure to strengthen the transmission towers with reasonable reinforcement measures. Practice has proved that the use of welding and attaching angle steel for reinforcement has many advantages, such as firm connection of reinforced angle steel, avoidance of secondary stress, avoidance of strength reduction caused by bolt opening, and simple node position processing. It has broad application prospects in the field of transmission tower reinforcement. When performing welding reinforcement, the most basic step is to attach the reinforcement angle steel to the inner side of the original transmission tower angle steel, and then complete the welding. When implementing this process, it is very important to fix the angle steel before and after the transmission tower reinforcement, which controls the assembly gap and welding deformation. If the appropriate fixture is not used, it often leads to many problems such as too large gaps in the angle steel and the assembly straightness not meeting the requirements. The traditional welding method uses a handheld method to overlap multiple steel plates and then weld them. The steel plates are prone to displacement during the welding process, resulting in welding deformation, affecting the overall firmness of the angle steel tower; when multiple steel plates need to be welded at a specific angle, there is a lack of angle measurement for multiple steel plates for structural welding, and external tools are required to assist, affecting welding efficiency.

[0003] A positioning fixture for welding and attaching reinforced angle steels for transmission angle steel towers disclosed in publication number CN206267614U adopts a fixture combination of an open positioning block and a wedge block, which can meet the needs of welding and attaching angle steels for transmission towers and improve assembly efficiency and accuracy.

[0004] However, the positioning fixture for welding and attaching the transmission angle steel tower reinforcement angle steel has the following disadvantages:

[0005] The steel plate is prone to displacement during welding, which causes welding deformation and affects the overall firmness of the angle steel tower;

[0006] When multiple steel plates need to be welded at specific angles, there is a lack of angle measurement for multiple steel plates welded in the structure, and external tools are needed to assist, which affects welding efficiency. Utility Model Content

[0007] The technical problem solved by the utility model is to provide a positioning fixture for welding angle steel towers which is highly practical, can be simply operated and has a relatively simple structure. It solves the problems mentioned in the above background technology that steel plates are prone to displacement during welding, resulting in welding deformation, and there is a lack of angle measurement for multiple steel plates for structural welding, which requires the use of external tools for assistance, affecting welding efficiency.

[0008] To achieve the above purpose, the utility model is implemented through the following technical scheme: a positioning fixture tool for welding angle steel towers, including a left turn plate, a turn port is opened on the side of the left turn plate, a plug plate is rotatably connected inside the turn port, a right turn plate is fixedly connected to the side of the plug plate, the sides of the left turn plate and the right turn plate are both provided with clamping grooves, the sides of the clamping grooves are axially symmetrically fixedly connected with hinges, the sides of the hinges are fixedly connected with clamping components, and the back of the left turn plate is fixedly connected to a semicircular scale plate.

[0009] Optionally, the clamping assembly includes a clamping plate fixedly connected to the side of the hinge, a limiting hole is opened on the side of the clamping plate, a rotatable limiting rod is arranged inside the limiting hole, a bearing is sleeved on one end of the limiting rod, and the bearing is sleeved on the side of the clamping groove.

[0010] Optionally, a screw hole is provided on a side of the clamping plate, a bolt is connected to the internal thread of the screw hole, and one end of the bolt is fixedly connected to the extrusion plate.

[0011] Optionally, the other end of the bolt is fixedly connected to a tightening plate, and an auxiliary rod is provided on the top surface of the tightening plate.

[0012] Optionally, the sides of the left-turn plate and the right-turn plate are provided with placement grooves, and rubber pads are fixedly connected inside the placement grooves.

[0013] Optionally, the top surfaces of the left-turn plate and the right-turn plate are fixedly connected to protractor plates, and the top surfaces of the protractor plates are provided with a reflective coating. Beneficial Effects

[0014] The utility model provides a positioning fixture for welding an angle steel tower, which has the following beneficial effects:

[0015] 1. The positioning fixture for welding the angle steel tower, through the setting of the clamping assembly, places the two steel plates on the clamping grooves on the sides of the left turning plate and the right turning plate respectively, rotates the clamping plate to make it fit the side of the steel plate, and then, twists the limit rod to make it rotate through the bearing. The change in the angle of the limit rod will cause it to be clamped outside the limit hole on the side of the clamping plate, so that the clamping plate pressurizes and fixes the steel plate to the side of the clamping groove, thereby achieving the effect of firmly clamping the steel plate, avoiding shaking during welding and causing welding deformation, which affects the overall firmness of the angle steel tower.

[0016] 2. The positioning fixture for welding the angle steel tower, through the setting of the semicircular scale plate, after the steel plates are clamped on the clamping components on the sides of the left turn plate and the right turn plate respectively, the right turn plate is turned to change the angle between it and the left turn plate. By observing the position of the protractor plates on the top surfaces of the left turn plate and the right turn plate on the semicircular scale plate, the placement angle of the two steel plates can be accurately adjusted, thereby achieving the purpose of facilitating workers to weld the steel plates at specific angles without the use of external tools, thereby improving the welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the clamping assembly of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the bolt, the screw plate and the extrusion plate of the utility model;

[0020] Figure 4 It is a schematic diagram of the split structure of the utility model.

[0021] In the figure: 1. left turning plate; 2. plug plate; 3. right turning plate; 4. hinge; 5. clamping assembly; 51. clamping plate; 52. limit rod; 53. bearing; 6. semicircular scale plate; 7. bolt; 8. extrusion plate; 9. screw plate; 10. auxiliary rod; 11. rubber pad; 12. angle measuring plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 4 The utility model provides a technical solution: a positioning fixture for welding an angle steel tower, comprising a left turn plate 1, a turn port is provided on the side of the left turn plate 1, a plug plate 2 is rotatably connected inside the turn port, a right turn plate 3 is fixedly connected to the side of the plug plate 2, a clamping groove is provided on the side of the left turn plate 1 and the right turn plate 3, hinges 4 are fixedly connected to the side of the clamping groove in an axisymmetric manner, a clamping assembly 5 is fixedly connected to the side of the hinge 4, a semicircular scale plate 6 is fixedly connected to the back of the left turn plate 1, an angle measuring plate 12 is fixedly connected to the top surface of the left turn plate 1 and the right turn plate 3, and a reflective coating is provided on the top surface of the angle measuring plate 12;

[0024] By setting the angle measuring plate 12, the angle between the two steel plates can be judged by observing the position of the angle measuring plate 12 on the semicircular scale plate 6. At the same time, the reflective coating provided on its surface can effectively improve the clarity when observing the position of the angle measuring plate 12, which plays a role in facilitating and accurately controlling the angle between the two steel plates.

[0025] See also Figure 3 A screw hole is provided on the side of the clamping plate 51, and a bolt 7 is connected to the inner thread of the screw hole. One end of the bolt 7 is fixedly connected to the extrusion plate 8, and the other end of the bolt 7 is fixedly connected to the screwing plate 9. An auxiliary rod 10 is provided on the top surface of the screwing plate 9;

[0026] By setting the extrusion plate 8, after the steel plate is clamped on the back of the clamping assembly 5, the auxiliary rod 10 is twisted to drive the bolt 7 fixed on the side of the twisting plate 9 to rotate. The bolt 7 moves inside the clamping plate 51, driving the extrusion plate 8 on the other side to squeeze the steel plate, thereby further strengthening the clamping firmness of the steel plate. Example

[0027] See also Figure 2 The clamping assembly 5 includes a clamping plate 51 fixedly connected to the side of the hinge 4, a limiting hole is provided on the side of the clamping plate 51, a rotatable limiting rod 52 is provided inside the limiting hole, one end of the limiting rod 52 is sleeved with a bearing 53, and the bearing 53 is sleeved on the side of the clamping groove;

[0028] By setting the clamping assembly 5, the two steel plates are placed on the clamping grooves on the sides of the left turn plate 1 and the right turn plate 3 respectively, and the clamping plate 51 is rotated so that the clamping plate 51 fits the side of the steel plate, and then the limiting rod 52 is twisted to rotate through the bearing 53. The change in the angle of the limiting rod 52 will cause it to be clamped outside the limiting hole on the side of the clamping plate 51, so that the clamping plate 51 presses and fixes the steel plate on the side of the clamping groove, thereby achieving the effect of firmly clamping the steel plate, avoiding shaking during welding and causing welding deformation, which affects the overall firmness of the angle steel tower; Example

[0029] See also Figure 4 The side of the left turn plate 1 is provided with a turn port, the inner part of the turn port is rotatably connected with the plug plate 2, the side of the plug plate 2 is fixedly connected with the right turn plate 3, and the back of the left turn plate 1 is fixedly connected with the semicircular scale plate 6;

[0030] By setting the semicircular scale plate 6, after the steel plates are clamped on the clamping assemblies 5 on the sides of the left turn plate 1 and the right turn plate 3 respectively, the right turn plate 3 is moved to change the angle between it and the left turn plate 1. By observing the position of the protractor plates 12 on the top surfaces of the left turn plate 1 and the right turn plate 3 on the semicircular scale plate 6, the placement angle of the two steel plates can be accurately adjusted, thereby achieving the effect of facilitating workers to weld the steel plates at specific angles without the use of external tools, thereby improving welding efficiency.

[0031] In the utility model, the working steps of the device are as follows:

[0032] First, place the two steel plates on the clamping grooves on the sides of the left turn plate 1 and the right turn plate 3 respectively, rotate the clamping plate 51 so that the clamping plate 51 fits against the side of the steel plate, and then, twist the limit rod 52 to make it rotate through the bearing 53. The change in the angle of the limit rod 52 will cause it to be clamped outside the limit hole on the side of the clamping plate 51, so that the clamping plate 51 pressurizes and fixes the steel plates on the side of the clamping groove. Finally, after the steel plates are clamped on the clamping assemblies 5 on the sides of the left turn plate 1 and the right turn plate 3 respectively, move the right turn plate 3 to change the angle between it and the left turn plate 1, and observe the position of the protractor plates 12 on the top surfaces of the left turn plate 1 and the right turn plate 3 on the semicircular scale plate 6 to accurately adjust the placement angle of the two steel plates.

[0033] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0034] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning fixture for welding an angle steel tower, comprising a left-turning plate (1), characterized in that: The left turn plate (1) has a turn mouth on its side, a plug plate (2) is rotatably connected to the inside of the turn mouth, a right turn plate (3) is fixedly connected to the side of the plug plate (2), the left turn plate (1) and the right turn plate (3) have clamping grooves on their sides, hinges (4) are fixedly connected to the sides of the clamping grooves in an axisymmetric manner, a clamping assembly (5) is fixedly connected to the side of the hinge (4), and a semicircular scale plate (6) is fixedly connected to the back of the left turn plate (1).

2. The positioning fixture for angle steel tower welding according to claim 1 is characterized in that: The clamping assembly (5) comprises a clamping plate (51) fixedly connected to a side surface of the hinge (4); a limiting hole is provided on the side surface of the clamping plate (51); a rotatable limiting rod (52) is arranged inside the limiting hole; a bearing (53) is sleeved on one end of the limiting rod (52); and the bearing (53) is sleeved on a side surface of the clamping groove.

3. The positioning fixture for angle steel tower welding according to claim 2 is characterized in that: A screw hole is provided on the side of the clamping plate (51), a bolt (7) is threadedly connected to the inside of the screw hole, and one end of the bolt (7) is fixedly connected to a pressing plate (8).

4. The positioning fixture for angle steel tower welding according to claim 3 is characterized in that: The other end of the bolt (7) is fixedly connected to a tightening plate (9), and an auxiliary rod (10) is provided on the top surface of the tightening plate (9).

5. The positioning fixture for angle steel tower welding according to claim 1 is characterized in that: The sides of the left turning plate (1) and the right turning plate (3) are both provided with placement grooves, and the insides of the placement grooves are fixedly connected with rubber pads (11).

6. The positioning fixture for angle steel tower welding according to claim 1 is characterized in that: The top surfaces of the left-turn plate (1) and the right-turn plate (3) are both fixedly connected to an angle measuring plate (12), and the top surfaces of the angle measuring plates (12) are provided with a reflective coating.

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