Clamping tool for spot welding of steel pipe and flange

Abstract

The clamping tool comprises a working table and supporting assemblies connected to the two ends of the bottom face of the working table, a left L-shaped plate and a right L-shaped plate which are symmetrically arranged are connected to the top face of the working table, the left L-shaped plate is fixed to the working table, and the right L-shaped plate is fixed to the working table. Round supporting plates are arranged on the opposite faces of the left L-shaped plate and the right L-shaped plate, the right L-shaped plate is movably connected to the workbench, guide limiting assemblies are arranged on the front side and the rear side of the right L-shaped plate and connected to the workbench, a plurality of sets of check blocks arranged at equal intervals are arranged on the left side of the right L-shaped plate, and the check blocks are fixed to the workbench. A pushing assembly is arranged on the right side of the right L-shaped plate. Steel pipes with different lengths can be welded, the right L-shaped plate can be pushed to move through the pushing assembly to clamp a flange and the steel pipes, accurate positioning is carried out, the welding efficiency is improved, and the labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of flange assembly, in particular to a clamping tooling for spot welding of steel pipes and flanges. Background Art

[0002] At present, the welding and fixing of steel pipes and flanges mainly adopt manual clamping. During actual production, in order to improve the efficiency of prefabricated welding, the steel pipe and the flange are usually aligned first, and then fixed in position by spot welding, and then transferred to the next processing area for full welding to complete the welding. The existing spot welding frame has a simple structure and can only simply lift the steel pipe. The positioning of the two end flanges is simple and crude, and the situation of inaccurate alignment often occurs. It is often necessary to repeatedly adjust the position, disassemble and weld, resulting in low processing efficiency and additional labor costs. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a clamping tooling for spot welding of steel pipes and flanges to solve the above problems.

[0004] To solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A clamping tooling for spot welding of steel pipes and flanges of the utility model includes a workbench and support components connected to both ends of the bottom surface of the workbench. Two symmetrically arranged left L-shaped plates and right L-shaped plates are connected to the top surface of the workbench. The left L-shaped plate is fixed on the workbench. Circular support plates are provided on the opposite surfaces of the left L-shaped plate and the right L-shaped plate. The right L-shaped plate is movably connected to the workbench. Guide and limit components are provided on the front and rear sides of the right L-shaped plate. The guide and limit components are connected to the workbench. A plurality of groups of equally spaced blocks are provided on the left side of the right L-shaped plate. The blocks are fixed on the workbench. A top-pushing component is provided on the right side of the right L-shaped plate.

[0006] Further, the support component includes pads connected to both ends of the front and rear of the bottom surface of the workbench. Support legs are connected to the bottom of the pads.

[0007] Further, a chute is provided on the top surface of the workbench. A slider is slidably connected in the chute. The top surface of the slider is connected to the bottom surface of the left L-shaped plate. First fixing holes are provided on both sides of the front and rear of the chute. Two symmetrically arranged connecting holes are provided on the left L-shaped plate. The left L-shaped plate is fixed on the workbench by bolts passing through the connecting holes and the first fixing holes in sequence.

[0008] Further, two jack holes with an included angle of 90° are provided on both the left L-shaped plate and the right L-shaped plate. Positioning pins are inserted into the jack holes.

[0009] Further, the guide limiting assembly comprises two symmetrically arranged Z-shaped pressing plates and a first screw rod connected to the bottom surface of the right L-shaped plate, bolts are connected to the Z-shaped pressing plates, a plurality of groups of symmetrically arranged second fixing holes are formed in the right side end of the workbench, the bolts are fixed to the workbench after penetrating through the second fixing holes, and a first fastening nut is threadedly connected to the bottom of the first screw rod after penetrating through a strip-shaped hole formed in the right end of the workbench.

[0010] Further, the pushing assembly comprises a fan-shaped plate, the fan-shaped angle of the fan-shaped plate is 300°, the fan-shaped plate is arranged on the right side of the right L-shaped plate, an inclined handle is connected to the fan-shaped plate, a bearing is connected to the bottom of the fan-shaped plate, the bearing is arranged in the strip-shaped hole, a second screw rod is connected to the inner ring of the bearing, and a second fastening nut is threadedly connected to the second screw rod.

[0011] Compared with the prior art, the beneficial technical effects of the utility model are:

[0012] The utility model can weld steel pipes with different lengths, can move the right L-shaped plate to clamp the flange and the steel pipe by the pushing assembly, can be accurately positioned, can improve the welding efficiency and can reduce the labor cost. BRIEF DESCRIPTION OF DRAWINGS

[0013] The utility model will be further described in connection with the drawings.

[0014] Figure 1 It is a clamping tool structure schematic view for the utility model for steel pipe and flange spot welding;

[0015] Figure 2 It is Figure 1 It is an enlarged view of the middle A;

[0016] Figure 3 It is a clamping tool front view for the utility model for steel pipe and flange spot welding;

[0017] Figure 4 It is a clamping tool top view for the utility model for steel pipe and flange spot welding;

[0018] The reference signs are explained as follows: 1, workbench, 2, sliding groove, 3, left L-shaped plate, 4, right L-shaped plate, 5, circular supporting plate, 6, stop block, 7, cushion block, 8, supporting leg, 9, first fixing hole, 10, insertion hole, 11, positioning pin, 12, Z-shaped pressing plate, 13, first screw rod, 14, second fixing hole, 15, strip-shaped hole, 16, first fastening nut, 17, fan-shaped plate, 18, handle, 19, second screw rod, 20, second fastening nut, 21, sliding block. DETAILED DESCRIPTION

[0019] As Figures 1-4As shown, a clamping tool for steel pipe and flange spot welding, including a workbench 1 and a support assembly connected to the bottom of the workbench 1, the support assembly includes a cushion block 7 connected to the front and rear ends of the bottom of the workbench 1, the bottom of the cushion block 7 is connected with a support leg 8.

[0020] The top surface of the workbench 1 is connected with two symmetrical left L-shaped plates 3 and right L-shaped plates 4, the left L-shaped plate 3 is fixed on the workbench 1, the top surface of the workbench 1 is provided with a sliding groove 2, the sliding groove 2 is connected with a sliding block 21, the top surface of the sliding block 21 is connected with the bottom surface of the left L-shaped plate 3, the front and rear sides of the sliding groove 2 are provided with first fixing holes 9, the left L-shaped plate 3 is provided with two symmetrical connecting holes, and the left L-shaped plate 3 is fixed on the workbench 1 by bolts penetrating the connecting holes and the first fixing holes 9 in sequence.

[0021] The opposite sides of the left L-shaped plate 3 and the right L-shaped plate 4 are provided with circular supporting plates 5, the flanges are supported by the circular supporting plates 5, and the inner ring of the flanges is sleeved on the circular supporting plates 5. Two insertion holes 10 with an included angle of 90° are formed in the left L-shaped plate 3 and the right L-shaped plate 4, a positioning pin 11 is inserted into the insertion hole 10, and the positioning pin 11 is inserted into the through hole of the flange after penetrating the insertion hole 10.

[0022] The right L-shaped plate 4 is movably connected to the workbench 1, the front and rear sides of the right L-shaped plate 4 are provided with guide limiting assemblies, the guide limiting assemblies are connected to the workbench 1, the guide limiting assemblies include two symmetrical Z-shaped pressing plates 12 and a first screw rod 13 connected to the bottom surface of the right L-shaped plate 4, the Z-shaped pressing plate 12 is connected with a bolt, a plurality of groups of second fixing holes 14 are formed in the right end of the workbench 1, the bolt is fixed to the workbench 1 after penetrating the second fixing hole 14, and the bottom of the first screw rod 13 is threadedly connected with a first fastening nut 16 after penetrating a strip-shaped hole 15 formed in the right end of the workbench 1.

[0023] The left side of the right L-shaped plate 4 is provided with a plurality of groups of equally spaced stop blocks 6, the stop blocks 6 are fixed on the workbench 1, and the right side of the right L-shaped plate 4 is provided with a pushing assembly.

[0024] The pushing assembly comprises a sector plate 17, the sector angle of the sector plate 17 is 300°, the sector plate 17 is arranged on the right side of the right L-shaped plate 4, a handle 18 is arranged on the sector plate 17, a bearing is arranged at the bottom of the sector plate 17, the bearing is arranged in the strip-shaped hole 15, a second screw rod 19 is arranged on the inner ring of the bearing, and a second fastening nut 20 is threadedly connected on the second screw rod 19. By rotating the handle 18, the sector plate 17 is driven to rotate, the one end of the plane of the sector plate 17 is away from the right side wall of the right L-shaped plate 4, the arc end of the sector plate 17 is abutted on the right side wall of the right L-shaped plate 4, the right L-shaped plate 4 is driven to move, and the right L-shaped plate 4 is abutted on the stopper 6, so that the steel pipe and the flange are clamped.

[0025] The action process of the utility model is as follows:

[0026] In use, according to the length of the steel pipe, the first fixing hole 9 and the second fixing hole 14 are selected, the left L-shaped plate 3 is moved to the position of the selected first fixing hole 9 and then is fixed by bolts, then the right L-shaped plate 4 is arranged at a proper position, then two Z-shaped pressing plates 12 are installed, the Z-shaped pressing plate 12 is pressed against the right L-shaped plate 4, then the first fastening nut 16 is screwed, the first fastening nut 16 is close to the bottom surface of the workbench 1, the right L-shaped plate 4 can be slightly fixed but can be moved, then the sector plate 17 is moved, the one end of the plane of the sector plate 17 is attached to the right end surface of the right L-shaped plate 4, then the second fastening nut 20 is tightened, the left end of the right L-shaped plate 4 is still spaced from the nearest stopper 6, then the two flanges are respectively sleeved on the two circular supporting plates 5, then are fixed by the positioning pins 11, then one end of the steel pipe is inserted into the flange on the side of the left L-shaped plate 3, then the steel pipe is kept horizontal, the handle 18 is rotated, the one end of the plane of the sector plate 17 is away from the right side wall of the right L-shaped plate 4, the arc end of the sector plate 17 is abutted on the right side wall of the right L-shaped plate 4, so that the right L-shaped plate 4 is driven to move, and the right L-shaped plate 4 is abutted on the stopper 6, so that the steel pipe and the flange are clamped, and then spot welding is carried out.

[0027] The above-described embodiments are only used for describing the preferred modes of the utility model, and do not limit the scope of the utility model, and various deformations and improvements on the technical scheme of the utility model made by the ordinary skilled in the art without departing from the design spirit of the utility model shall fall into the protection scope determined by the claim of the utility model.

Claims

1. A clamping fixture for spot welding steel pipes and flanges, characterized in that: The device includes a workbench (1) and support components connected to both ends of the bottom surface of the workbench (1). Two symmetrically arranged left L-shaped plates (3) and right L-shaped plates (4) are connected to the top surface of the workbench (1). The left L-shaped plate (3) is fixed on the workbench (1). Circular support plates (5) are provided on the opposite side of the left L-shaped plate (3) and the right L-shaped plate (4). The right L-shaped plate (4) is movably connected to the workbench (1). Guide and limiting components are provided on the front and rear sides of the right L-shaped plate (4). The guide and limiting components are connected to the workbench (1). Several sets of equally spaced stop blocks (6) are provided on the left side of the right L-shaped plate (4). The stop blocks (6) are fixed on the workbench (1). A pushing component is provided on the right side of the right L-shaped plate (4).

2. The clamping fixture for spot welding steel pipes and flanges according to claim 1, characterized in that: The support assembly includes pads (7) connected to the front and rear ends of the bottom of the workbench (1), and the bottom of the pads (7) is connected to support legs (8).

3. The clamping fixture for spot welding steel pipes and flanges according to claim 1, characterized in that: The top surface of the workbench (1) is provided with a sliding groove (2), and a slider (21) is slidably connected in the sliding groove (2). The top surface of the slider (21) is connected to the bottom surface of the left L-shaped plate (3). The front and rear sides of the sliding groove (2) are provided with first fixing holes (9). The left L-shaped plate (3) is provided with two symmetrically arranged connecting holes. The left L-shaped plate (3) is fixed to the workbench (1) by bolts passing through the connecting holes and the first fixing holes (9) in sequence.

4. The clamping fixture for spot welding steel pipes and flanges according to claim 1, characterized in that: The left L-shaped plate (3) and the right L-shaped plate (4) each have two insertion holes (10) with an included angle of 90°, and a positioning pin (11) is inserted into the insertion hole (10).

5. The clamping fixture for spot welding steel pipes and flanges according to claim 1, characterized in that: The guide limiting assembly includes two symmetrically arranged Z-shaped pressure plates (12) and a first screw (13) connected to the bottom surface of the right L-shaped plate (4). Bolts are connected to the Z-shaped pressure plates (12). Several sets of symmetrically arranged second fixing holes (14) are opened on the right side end of the worktable (1). The bolts pass through the second fixing holes (14) and are fixed on the worktable (1). The bottom of the first screw (13) passes through the strip hole (15) opened on the right side end of the worktable (1) and is threaded with a first fastening nut (16).

6. The clamping fixture for spot welding steel pipes and flanges according to claim 5, characterized in that: The push assembly includes a fan-shaped plate (17) with a fan angle of 300°. The fan-shaped plate (17) is located on the right side of the right L-shaped plate (4). An inclined handle (18) is connected to the fan-shaped plate (17). A bearing is connected to the bottom of the fan-shaped plate (17). The bearing is located in the strip hole (15). A second screw (19) is connected to the inner ring of the bearing. A second fastening nut (20) is threaded onto the second screw (19).

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