High-precision positioning tool for welding forming of steel member

Abstract

The utility model relates to a high-precision positioning tool for welding forming of a steel member, which comprises a base, vertical columns which vertically extend upwards are respectively fixed at four top corners of the upper surface of the base, a welding table is fixed at the top ends of the four vertical columns, and a through hole which is through up and down is formed in the welding table; a first driving mechanism is arranged above the base, a positioning circular table is arranged at the top of the first driving mechanism, and the first driving mechanism is used for driving the positioning circular table to vertically penetrate through the penetrating hole. The two C-shaped steel pipes are clamped outside the positioning circular truncated cone through the two V-shaped clamping heads, the positioning circular truncated cone is used for supporting and positioning the two C-shaped steel pipes from the inside, the two V-shaped clamping heads are used for clamping and positioning the two C-shaped steel pipes from the outside, it is guaranteed that the two C-shaped steel pipes are assembled and spliced accurately, the positioning effect is good, and then the welding forming quality is improved; and the positioning circular truncated cone can reset and move downwards to make space, so that the welding position is prevented from being shielded, and full-circumference welding of the butt joint position is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of welding positioning tools, and particularly relates to a high-precision positioning tool for welding and forming of steel members. Background Technique

[0002] The welding of steel members is a process of melting welding materials, usually electrodes or welding wires, between two or more steel parts and then allowing them to cool and solidify to form a firm connection. This connection method can be used to build various structures such as bridges, buildings, and ships, and its strength and durability depend on welding techniques and material selection.

[0003] In the welding of steel members, it is necessary to weld two C-shaped steel pipes into a complete circular ring. The existing technology still mainly relies on manual placement on the ground for welding, resulting in poor positioning effects. It is very difficult to accurately pair the two C-shaped steel pipes, leading to poor welding and forming quality. In addition, even if a special positioning tool is used, the size is fixed and it can only be applicable to the positioning of C-shaped steel pipes of a single size, with low versatility. Content of the Utility Model

[0004] The purpose of the utility model is to provide a high-precision positioning tool for welding and forming of steel members, which effectively solves the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions.

[0006] A high-precision positioning tool for welding and forming of steel members includes a base. At the four top corners of the upper surface of the base, there are respectively fixed vertical columns extending upward. The tops of the four columns are jointly fixed with a welding table, and there is a through hole running through the upper and lower parts on the welding table; above the base, there is a first driving mechanism, and a positioning turntable is arranged at the top of the first driving mechanism. The first driving mechanism is used to drive the positioning turntable to vertically move up and down through the through hole; on the upper surface of the welding table, on both sides of the through hole, there are respectively fixed vertical frames, and on the sides of the two vertical frames away from each other, there are respectively arranged second telescopic cylinders, and at the ends of the telescopic rods of the two second telescopic cylinders, there are respectively fixed V-shaped clamping heads.

[0007] Thus, the two C-shaped steel pipes are clamped outside the positioning turntable by the two V-shaped clamping heads. The positioning turntable provides support and positioning for the two C-shaped steel pipes from the inside, and the two V-shaped clamping heads provide clamping and positioning from the outside, ensuring the accurate pairing and splicing of the two C-shaped steel pipes, with good positioning effects, thereby improving the welding and forming quality. In addition, the positioning turntable can move downward in a reset manner to make space, avoiding blocking the welding area and facilitating the full-circumference welding of the butt joint.

[0008] Furthermore, the positioning frustum is formed by successively fixing and connecting a number of circular seats layer by layer from top to bottom. Each circular seat is coaxial, and the diameter of the circular seat in the lower layer is larger; the diameter of the lowermost circular seat is smaller than the inner diameter of the through hole.

[0009] Furthermore, the first driving mechanism includes a fixed seat, a first telescopic cylinder, and a connecting arm; the fixed seat is fixed on the upper surface of the base, and the first telescopic cylinder is vertically fixed above the fixed seat; the bottom end of the connecting arm is fixed to the end of the telescopic rod of the first telescopic cylinder, and the top end is fixed to the bottom of the lowermost circular seat.

[0010] Furthermore, rotating seats are installed through the tops of the two vertical frames, and the two rotating seats are rotatably connected to the vertical frames; two second telescopic cylinders are respectively fixed on the end faces of the two rotating seats away from each other, and the output shafts of the second telescopic cylinders penetrate the rotating seats correspondingly; a second driving mechanism is also provided on the base, and the second driving mechanism is used to drive the two rotating seats to rotate simultaneously and synchronously.

[0011] Furthermore, the second driving mechanism includes a mounting frame, a third telescopic cylinder, a suspension, a pair of racks, and a pair of toothed rings; the mounting frame is fixed on one side of the welding table, the third telescopic cylinder is horizontally fixed on the mounting frame, and the suspension is fixed to the end of the telescopic rod of the mounting frame; the two racks are symmetrically fixed to both ends of the suspension, the two toothed rings are respectively fixedly sleeved on the two rotating seats, and the racks are meshed with the toothed rings one by one.

[0012] Furthermore, universal wheels are respectively installed at the four top corners of the bottom of the base, and the universal wheels have a braking effect.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows.

[0014] 1. The present utility model clamps two C-shaped steel pipes by two V-shaped clamping heads outside the positioning frustum, uses the positioning frustum to provide support and positioning for the two C-shaped steel pipes from the inside, and uses the two V-shaped clamping heads to provide clamping and positioning from the outside, ensuring accurate alignment and splicing of the two C-shaped steel pipes, with good positioning effect, thereby improving the welding forming quality. In addition, the positioning frustum can be reset and moved downward to make space, avoiding blocking the welding area and facilitating full-circumference welding of the butt joint.

[0015] 2. The positioning frustum in the present utility model is arranged in a stepped manner with a gradually increasing diameter from top to bottom. By rising different amounts, circular seats with different diameters are located between the two V-shaped clamping heads. Combining the V-shaped design of the V-shaped clamping heads and the different amounts advanced by the second telescopic cylinder, it can meet the positioning requirements of C-shaped steel pipes of different sizes, with high versatility.

[0016] 3. The utility model works through the second driving mechanism to drive the two rotating seats to rotate simultaneously and synchronously, thereby driving the two C-shaped steel pipes to flip, achieving the surface-changing adjustment. It can be adjusted so that different positions at the butt joints of the two C-shaped steel pipes face upward respectively, facilitating the full-circumference welding. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 is a schematic cross-sectional structure diagram of the utility model;

[0019] Figure 3 is Figure 2 an enlarged schematic diagram of the structure at A in

[0020] Figure 4 is a detailed schematic diagram of the second driving mechanism in the utility model.

[0021] In the figures: 1, base; 11, column; 12, universal wheel; 2, welding table; 21, through hole; 3, first driving mechanism; 31, fixed seat; 32, first telescopic cylinder; 33, connecting arm; 4, positioning round table; 41, circular seat; 5, vertical frame; 6, second telescopic cylinder; 61, rotating seat; 7, V-shaped clamping head; 8, second driving mechanism; 81, mounting frame; 82, third telescopic cylinder; 83, suspension; 84, rack; 85, gear ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] In the description of the embodiments of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "connection" and "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "communication" can be a direct communication or an indirect communication through an intermediate medium. Among them, "fixing" means that they are connected to each other and the relative positional relationship after connection remains unchanged. The orientation terms mentioned in the embodiments of the present utility model, such as "inside", "outside", "top", "bottom", etc., are only with reference to the direction of the attached drawings. Therefore, the orientation terms used are for better and clearer explanation and understanding of the embodiments of the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the embodiments of the present utility model.

[0024] In the embodiments of the present utility model, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0025] Please refer to Figures 1 - 4 , a high-precision positioning tooling for the welding forming of steel members provided by the present utility model includes a base 1. Vertically upward extending columns 11 are respectively fixed at the four top corners of the upper surface of the base 1. The tops of the four columns 11 are jointly fixed with a welding table 2. A through hole 21 that penetrates up and down is provided on the welding table 2; above the base 1 is provided a first driving mechanism 3. A positioning turntable 4 is arranged at the top of the first driving mechanism 3. The first driving mechanism 3 is used to drive the positioning turntable 4 to vertically move up and down through the through hole 21; on the upper surface of the welding table 2, vertical frames 5 are respectively fixed on both sides of the through hole 21. Second telescopic cylinders 6 are respectively arranged on the sides of the two vertical frames 5 away from each other. V-shaped clamping heads 7 are respectively fixed at the ends of the telescopic rods of the two second telescopic cylinders 6.

[0026] In the welding and forming of steel components, when using this positioning tooling to position and assemble two C-shaped steel pipes for welding, first, the first driving mechanism 3 works to push the positioning round table 4 through the through hole 21 and move it to a position above the welding table 2. Then, the two C-shaped steel pipes are symmetrically placed on both sides of the positioning round table 4, and it is ensured that the two ends of the two C-shaped steel pipes are respectively aligned and butted. Subsequently, the two second telescopic cylinders 6 work simultaneously, and the telescopic rods of the second telescopic cylinders 6 extend to push the two V-shaped clamping heads 7 closer to each other and clamp them outside the two C-shaped steel pipes. Thus, the two C-shaped steel pipes can be clamped and positioned against the positioning round table 4. Then, the butt joint of the two C-shaped steel pipes is spot-welded locally to pre-fix the two C-shaped steel pipes. Next, the first driving mechanism 3 works to drive the positioning round table 4 to descend through the through hole 21 to a position below the welding table 2. At this time, the two locally welded and fixed C-shaped steel pipes are stably suspended above the welding table 2 under the clamping action of the two V-shaped clamping heads 7. Then, the other parts of the butt joints of the two C-shaped steel pipes are completely welded, and the two C-shaped steel pipes can be welded into a circular ring. After welding is completed, by retracting the telescopic rods of the two second telescopic cylinders 6, the welded ring can be removed.

[0027] This device clamps the two C-shaped steel pipes outside the positioning round table 4 through the two V-shaped clamping heads 7, uses the positioning round table 4 to provide support and positioning for the two C-shaped steel pipes from the inside, and uses the two V-shaped clamping heads 7 to provide clamping and positioning from the outside, ensuring accurate assembly and splicing of the two C-shaped steel pipes and good positioning effect, thereby improving the welding and forming quality. In addition, the positioning round table 4 can be reset and moved downward to make room and avoid blocking the welding area, facilitating full-circumference welding of the butt joint.

[0028] Specifically, the positioning round table 4 is formed by sequentially and fixedly connecting several circular seats 41 from top to bottom layer by layer. Each circular seat 41 is coaxial, and the diameter of the circular seat 41 in the lower layer is larger; the diameter of the lowermost circular seat 41 is smaller than the inner diameter of the through hole 21. The positioning round table 4 is arranged in a gradually convex shape with a larger diameter downward layer by layer. By rising different amounts, circular seats 41 with different diameters are located between the two V-shaped clamping heads 7. Combining the V-shaped design of the V-shaped clamping heads 7 and the different amounts advanced by the second telescopic cylinders 6, it can meet the positioning requirements of C-shaped steel pipes of different sizes and has high versatility.

[0029] Specifically, the first driving mechanism 3 includes a fixed seat 31, a first telescopic cylinder 32, and a connecting arm 33; the fixed seat 31 is fixed on the upper surface of the base 1, and the first telescopic cylinder 32 is vertically fixed above the fixed seat 31; the bottom end of the connecting arm 33 is fixed to the end of the telescopic rod of the first telescopic cylinder 32, and the top end is fixed to the bottom of the lowermost circular seat 41. Through the telescopic movement of the telescopic rod of the first telescopic cylinder 32 and the connection of the connecting arm 33, the whole positioning round table 4 can be driven to move up and down, achieving the effect of adjusting the positioning round table 4 up and down as a whole.

[0030] Specifically, rotating seats 61 are installed through the tops of the two vertical frames 5, and the two rotating seats 61 are rotatably connected to the vertical frames 5; two second telescopic cylinders 6 are respectively fixed on the end faces of the two rotating seats 61 away from each other, and the output shafts of the second telescopic cylinders 6 correspondingly penetrate through the rotating seats 61; a second driving mechanism 8 is further provided on the base 1, and the second driving mechanism 8 is used to drive the two rotating seats 61 to rotate simultaneously and synchronously. By the operation of the second driving mechanism 8, driving the two rotating seats 61 to rotate simultaneously and synchronously can drive the two C-shaped steel pipes to flip, realizing surface-changing adjustment, and can adjust different positions at the butt joints of the two C-shaped steel pipes to face upward respectively, facilitating full-round welding.

[0031] Specifically, the second driving mechanism 8 includes a mounting frame 81, a third telescopic cylinder 82, a suspension 83, a pair of racks 84 and a pair of gear rings 85; the mounting frame 81 is fixed on one side of the welding table 2, the third telescopic cylinder 82 is horizontally fixed on the mounting frame 81, and the suspension 83 is fixed on the end of the telescopic rod of the mounting frame 81; the two racks 84 are symmetrically fixed on both ends of the suspension 83, the two gear rings 85 are respectively fixedly sleeved on the two rotating seats 61, and the racks 84 are meshed with the gear rings 85 one by one. By the telescopic operation of the third telescopic cylinder 82, its telescopic rod drives the suspension 83 to move synchronously, the suspension 83 drives the two racks 84 to move synchronously, and then the two racks 84 respectively mesh and drive the two gear rings 85 and drive the two rotating seats 61 to rotate synchronously, realizing the flipping adjustment of the two C-shaped steel pipes. At the same time, the amounts of rotation of the gear rings 85 driven by the racks 84 on both sides are the same, so as to ensure the synchronous flipping of the two C-shaped steel pipes and high stability.

[0032] Specifically, universal wheels 12 are respectively installed at the four top corners of the bottom of the base 1. The universal wheels 12 facilitate the overall movement of the device for position transfer adjustment. The universal wheels 12 have a braking effect. During operation, the universal wheels 12 are adjusted to the braking mode to ensure that the overall device will not move randomly, thereby ensuring the stability during welding.

[0033] In addition, the first telescopic cylinder 32, the second telescopic cylinder 6 and the third telescopic cylinder 82 in this application can be selected from air cylinders, hydraulic cylinders or electric push cylinders.

[0034] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A high-precision positioning tooling for the welding forming of steel components, including a base (1), characterized in that: At the four top corners of the upper surface of the base (1), vertical columns (11) extending upward are respectively fixed. The tops of the four columns (11) are jointly fixed with a welding table (2), and a through hole (21) penetrating up and down is provided on the welding table (2); Above the base (1), a first driving mechanism (3) is provided. A positioning turntable (4) is arranged at the top of the first driving mechanism (3), and the first driving mechanism (3) is used to drive the positioning turntable (4) to vertically move up and down through the through hole (21); On the upper surface of the welding table (2) on both sides of the through hole (21), vertical frames (5) are respectively fixed. On the sides of the two vertical frames (5) away from each other, second telescopic cylinders (6) are respectively provided. At the ends of the telescopic rods of the two second telescopic cylinders (6), V-shaped clamping heads (7) are respectively fixed.

2. The high-precision positioning tooling for the welding forming of steel components according to claim 1, characterized in that: The positioning turntable (4) is formed by a plurality of circular seats (41) fixedly connected layer by layer from top to bottom. Each circular seat (41) maintains coaxiality, and the diameter of the lower circular seat (41) is larger; The diameter of the lowermost circular seat (41) is smaller than the inner diameter of the through hole (21).

3. The high-precision positioning tooling for the welding forming of steel components according to claim 2, characterized in that: The first driving mechanism (3) includes a fixed seat (31), a first telescopic cylinder (32) and a connecting arm (33); The fixed seat (31) is fixed on the upper surface of the base (1), and the first telescopic cylinder (32) is vertically fixed above the fixed seat (31); The bottom end of the connecting arm (33) is fixed to the end of the telescopic rod of the first telescopic cylinder (32), and the top end is fixed to the bottom of the lowermost circular seat (41).

4. The high-precision positioning tooling for the welding forming of steel components according to claim 1, characterized in that: Rotating seats (61) are installed through the tops of the two vertical frames (5), and the two rotating seats (61) are rotatably connected to the vertical frames (5); The two second telescopic cylinders (6) are respectively fixed on the end faces of the two rotating seats (61) away from each other, and the output shafts of the second telescopic cylinders (6) correspondingly penetrate through the rotating seats (61); A second driving mechanism (8) is further provided on the base (1), and the second driving mechanism (8) is used to drive the two rotating seats (61) to rotate simultaneously and synchronously.

5. The high-precision positioning tooling for the welding forming of steel components according to claim 4, characterized in that: The second driving mechanism (8) includes a mounting frame (81), a third telescopic cylinder (82), a suspension (83), a pair of racks (84) and a pair of toothed rings (85); The mounting bracket (81) is fixed to one side of the welding table (2), the third telescopic cylinder (82) is horizontally fixed to the mounting bracket (81), and the suspension (83) is fixed to the end of the telescopic rod of the mounting bracket (81); Two of the racks (84) are symmetrically fixed to both ends of the suspension (83), two of the toothed rings (85) are respectively fixedly sleeved on the two rotating seats (61), and the racks (84) are in one-to-one correspondence with and meshed with the toothed rings (85).

6. The high-precision positioning tooling for steel member welding and forming according to claim 1, wherein: Universal wheels (12) are respectively installed at the four top corners of the bottom of the base (1), and the universal wheels (12) have a braking effect.

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