Positioning tool for welding rod body base

Abstract

A kind of positioning tool for rod body base welding, including bottom plate, upper extension arm is welded on bottom plate, outer ring is welded on upper extension arm, inner ring is rotatably arranged in outer ring, one of inner ring is welded with inner extension plate, the length direction of inner extension plate is parallel with the radial direction of inner ring, connecting rod is connected on inner extension plate by screw thread, the other end of connecting rod is provided with inner top disc, fixed mechanism is arranged in inner ring.The rod body and base are connected on it in flat-lying when welding, this design facilitates the welding operation between rod body and base, and the rod body and base can be welded together by rotating the rod body during welding.

Description

Technical Field

[0001] This utility model relates to the field of outdoor billboard processing technology, and in particular to a positioning fixture for welding pole bases. Background Technology

[0002] like Figure 3 This is a three-dimensional structural diagram of an outdoor advertising billboard, comprising a rectangular shell 1, an electronic display screen 10 on one side of the shell 1, and rods 11 bolted or welded to both ends of the shell 1. A base 12 is welded to the lower end of each rod 11, and multiple ribs 13 are welded to the lower outer periphery of each rod 11, with the lower ends of the ribs 13 welded to the base 12. A connector 14 is welded to the upper end of each rod 11, and an inclined canopy 15 is welded to the upper end of the connector 14. During welding, the rod 11 and base 12 require strict perpendicularity; that is, the rod 11 must be welded precisely perpendicular to the base 12. Currently, welding is performed by measuring with a plumb bob, first spot welding to ensure perpendicularity between the rod 11 and base 12, and then full welding. While this method ensures perpendicularity, measurement errors during operation can lead to insufficient perpendicularity, requiring rework and re-welding. Furthermore, this method has a high degree of uncertainty. Utility Model Content

[0003] This utility model provides a positioning fixture for welding the base of a rod, which solves the shortcomings of the prior art and resolves the problem of difficulty in maintaining the verticality during welding of the rod and the base, and has strong practicality.

[0004] In order to achieve the purpose of this utility model, the following technology is proposed to be adopted: A positioning fixture for welding a rod base includes a base plate, an upper extension arm welded to the base plate, an outer ring welded to the upper extension arm, an inner ring rotatably disposed inside the outer ring, an inner extension plate welded to one of the inner rings, the length direction of the inner extension plate being parallel to the radial direction of the inner ring, a connecting rod being threadedly connected to the inner extension plate, an inner top plate being disposed at the other end of the connecting rod, and a fixing mechanism being disposed inside the inner ring.

[0005] Furthermore, the outer ring is composed of a pair of arc-shaped plates, with mounting wing plates welded to both ends of the outer ring, and the mounting wing plates located at the same end are fixed together by bolts.

[0006] Furthermore, end rings are welded to both ends of the inner ring, and the end rings are located at both ends of the outer ring.

[0007] Furthermore, the fixing mechanism includes four bosses welded to the inner wall of the inner ring, a pair of guide rods between each pair of bosses, the axial directions of the guide rods being parallel to each other, and a pair of clamps being sleeved on the guide rods.

[0008] Furthermore, two pairs of guide holes are provided at both ends of the clamping plate along its length direction. Movable rods are movably installed in the guide holes. A concave seat is fixed to the outer end of each pair of movable rods located at the same end. A pressure rod is rotatably installed on the inner end of the concave seat. An inclined plate is welded to the outer wall of the clamping plate. The inclined plate extends inward at an acute angle with the length direction of the clamping plate. An inclined hole parallel to its length direction is provided on the inclined plate. The inclined plate is located in the concave seat. The pressure rod passes through the inclined hole. A pair of through rods are installed on the outer ends of a pair of concave seats on one side. A connecting plate is welded at the middle position of the through rod. The connecting plate is welded to the inner circumference of the inner ring. A screw with opposite threads at both ends is connected to a pair of concave seats on the other side by a thread. A concave rotating seat is rotatably installed on the screw. The concave rotating seat is welded to the inner circumference of the inner ring. A rotating cap is fixed to the screw by a pin. The rotating cap is located in the concave rotating seat.

[0009] Furthermore, a rotating sleeve is provided on the movable rod.

[0010] The advantages of the above technical solution are: In this utility model, the rod and the base are connected to each other in a flat position during welding. This design facilitates the welding operation between the rod and the base. During the welding process, the rod and the base can be welded together by rotating the rod.

[0011] Secondly, during the welding process, a pair of clamps and two pairs of rotating sleeves facilitate the insertion of the rod and allow the rod to be positioned axially on the inner ring through the synchronous movement of the clamps, thus making it easier to rotate during the welding process.

[0012] Thirdly, the base is fixed to the inner ring by a corresponding connecting rod, which ensures the verticality of the base and the rod during the welding process. Attached Figure Description

[0013] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will provide a further detailed description of this utility model in conjunction with the accompanying drawings.

[0014] Figure 1 A three-dimensional structure of one embodiment is shown. Figure 1 .

[0015] Figure 2 A three-dimensional structure of one embodiment is shown. Figure 2 .

[0016] Figure 3 A three-dimensional structural diagram of an outdoor billboard is shown. Detailed Implementation

[0017] like Figures 1-2As shown, a positioning fixture for welding a rod base includes a base plate 1, an upper extension arm 20 welded to the base plate 1, and an outer ring 21 welded to the upper extension arm 20. The outer ring 21 is composed of a pair of arc-shaped plates, and mounting wing plates 22 are welded to both ends of the outer ring 21. The mounting wing plates 22 located at the same end are fixed together by bolts. An inner ring 23 is rotatably provided inside the outer ring 21, and end rings 24 are welded to both ends of the inner ring 23. The end rings 24 are located at both ends of the outer ring 21. An inner extension plate 25 is welded to one of the inner rings 23. The length direction of the inner extension plate 25 is parallel to the radial direction of the inner ring 23. A connecting rod 26 is threadedly connected to the inner extension plate 25. An inner top plate 27 is provided at the other end of the connecting rod 26. A fixing mechanism is provided inside the inner ring 23.

[0018] The fixing mechanism includes four bosses 28 welded to the inner wall of the inner ring 23. A pair of guide rods 29 are provided between each pair of bosses 28. The axial directions of the guide rods 29 are parallel to each other. A pair of clamps 30 are sleeved on the guide rods 29.

[0019] Two pairs of guide holes 31 are provided at both ends of the clamping plate 30 along its length. Movable rods 39 are movably mounted within the guide holes 31, and rotating sleeves 40 are rotatably mounted on the movable rods 39. A concave seat 34 is fixed to the outer end of each pair of movable rods 39 located at the same end. A pressure rod 35 is rotatably mounted on the inner end of the concave seat 34. An inclined plate 41 is welded to the outer wall of the clamping plate 30. The inclined plate 41 extends inwards at an acute angle to the length of the clamping plate 30. An inclined hole 42 parallel to the length of the inclined plate 41 is provided on the inclined plate 41. Plate 41 is located inside concave seat 34, pressure rod 35 passes through oblique hole 42, a pair of through rods 33 are provided on the outer ends of a pair of concave seats 34 on one side, a connecting plate 32 is welded at the middle position of the through rod 33, the connecting plate 32 is welded to the inner circumference of inner ring 23, a pair of concave seats 34 on the other side are connected by threads with screws 38 with opposite threads at both ends, a concave rotating seat 36 is rotatably provided on the screw 38, the concave rotating seat 36 is welded to the inner circumference of inner ring 23, a rotating cap is fixed on the screw 38 by a pin, the rotating cap is located inside the concave rotating seat 36.

[0020] In this embodiment, when welding the rod 11 and the base 12, the rod 11 is inserted between the clamping plates 30. During the insertion process, the rod 11 is placed on a pair of rotating sleeves 40 located below, and then the rod 11 is pushed to move until one end of the rod 11 extends a certain length.

[0021] Then, the operator rotates the screw 38 by rotating the cap. When the screw 38 rotates, it will drive the movable rod 39 to move synchronously to the position of the rod 11. During the movement, the pressure rod 35 also moves. When the pressure rod 35 moves, it will act on the inclined hole 42, thereby causing the clamping plate 30 to move to both sides of the rod 11. This continues until the rod 11 is completely constrained. Optionally, to facilitate clamping, corresponding pads can be set between the clamping plates 30 so that when the rotating sleeve 40 and the rod 11 come into contact, the pads can constrain the rod.

[0022] Then, the base 12 is fitted onto the welding end of the rod 11, and then it is fixed to the inner ring 23 by screwing the connecting rod 26. When fixing the base 12, it is necessary to ensure the perpendicularity of the rod 11 and the base 12. After the connection is fixed, the welding operation can be performed by rotating the rod 11.

[0023] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A positioning fixture for welding a rod base, characterized in that, Includes a base plate (1), an upper extension arm (20) welded on the base plate (1), an outer ring (21) welded on the upper extension arm (20), an inner ring (23) rotatably provided inside the outer ring (21), an inner extension plate (25) welded on one of the inner rings (23), the length direction of the inner extension plate (25) is parallel to the radial direction of the inner ring (23), a connecting rod (26) is threadedly connected to the inner extension plate (25), an inner top plate (27) is provided at the other end of the connecting rod (26), and a fixing mechanism is provided inside the inner ring (23).

2. The positioning fixture for welding the rod base according to claim 1, characterized in that, The outer ring (21) is composed of a pair of arc-shaped plates. The two ends of the outer ring (21) are respectively welded with mounting wing plates (22), and the mounting wing plates (22) located at the same end are fixed together by bolts.

3. The positioning fixture for welding the rod base according to claim 1, characterized in that, The inner ring (23) has end rings (24) welded to both ends, and the end rings (24) are located at both ends of the outer ring (21).

4. The positioning fixture for welding the rod base according to claim 1, characterized in that, The fixing mechanism includes four bosses (28) welded to the inner wall of the inner ring (23), and a pair of guide rods (29) are provided between each pair of bosses (28). The axial directions of the guide rods (29) are parallel to each other, and a pair of clamps (30) are sleeved on the guide rods (29).

5. The positioning fixture for welding the rod base according to claim 4, characterized in that, Two pairs of guide holes (31) are provided at both ends of the clamping plate (30) along its length direction. Movable rods (39) are movably installed in the guide holes (31). A concave seat (34) is fixed to the outer end of each pair of movable rods (39) located at the same end. A pressure rod (35) is rotatably installed on the inner end of the concave seat (34). An inclined plate (41) is welded to the outer wall of the clamping plate (30). The inclined plate (41) extends inward at an acute angle with the length direction of the clamping plate (30). An inclined hole (42) parallel to its length direction is provided on the inclined plate (41). The inclined plate (41) is located in the concave seat (30). Inside 34), the pressure rod (35) passes through the inclined hole (42). A pair of through rods (33) are passed through the outer ends of a pair of concave seats (34) on one side. A connecting plate (32) is welded at the middle position of the through rod (33). The connecting plate (32) is welded to the inner circumference of the inner ring (23). A screw (38) with opposite threads at both ends is connected to a pair of concave seats (34) on the other side by a thread. A concave rotating seat (36) is rotatably provided on the screw (38). The concave rotating seat (36) is welded to the inner circumference of the inner ring (23). A rotating cap is fixed on the screw (38) by a pin. The rotating cap is located inside the concave rotating seat (36).

6. The positioning fixture for welding the rod base according to claim 5, characterized in that, A rotating sleeve (40) is provided on the movable rod (39).

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