Building steel pipe welding positioning clamp

Abstract

The utility model relates to the technical field of steel structure processing, and discloses a building steel pipe welding positioning clamp which comprises a rack, an inner supporting assembly is arranged on the rack, an inner supporting mechanism comprises a supporting seat, the supporting seat is arranged on the rack, a bell jar is arranged on the supporting seat, and a first hydraulic cylinder is arranged at one end of the bell jar; a first pull rod is arranged at the piston end of the first hydraulic cylinder; a first expansion piece and a second expansion piece are arranged on the first pull rod, and the first expansion piece and the second expansion piece are connected through a first connecting rod; a clamping assembly is arranged on the rack and used for clamping the outer wall of the C-shaped circular pipe in a centering mode. By arranging the inner supporting assembly and the clamping assembly, the position of the C-shaped circular pipe can be fixed internally and externally, clamping is stable, a weld joint is free of deviation, the welding effect is guaranteed, and the C-shaped circular pipe welding device is suitable for C-shaped circular pipes of different models.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure processing, in particular to a welding positioning fixture for building steel pipes. Background Art

[0002] Steel structures are made of steel and are one of the main types of building structures. They primarily consist of components such as beams, columns, and trusses made from sections and plates. They are treated with rust removal and prevention techniques such as silanization, pure manganese phosphating, water washing and drying, and galvanizing. Components are typically connected using welds, bolts, or rivets.

[0003] like Figure 1 As shown, it is an existing C-shaped round tube. The C-shaped round tube is mostly made by bending steel plates, and then the seams of the C-shaped round tube are welded into a round tube column.

[0004] The Chinese patent application number 202011523689.8 discloses a semi-circular steel pipe positioning and welding device for steel structure buildings, including a support mechanism and two positioning mechanisms. The support mechanism includes a base plate, a support ring is fixed on the base plate, and an adjustment mechanism is provided for the internal rotation of the support ring. The positioning mechanism includes a mounting plate, a sliding plate is fixed to the end of the mounting plate, and the sliding plate is slidably set on the adjustment mechanism. Several fixed plates are fixed on the mounting plate, and a support column is fixed above the fixed plate. A V-shaped frame is fixed on the support column. Two rotating plates are hinged above the V-shaped frame, and a positioning plate is clamped above the rotating plate. Electric push rods are hinged on both sides of the support column, and the ends of the electric push rods are hinged to the sides of the corresponding rotating plates.

[0005] However, the consistency of the movements of the four positioning plates of the positioning mechanism of the application is difficult to ensure, which easily causes position deviation of the semicircular tubes on both sides, affecting the welding effect. Summary of the Invention

[0006] The purpose of the utility model is to provide a construction steel pipe welding positioning fixture, which effectively solves the problem proposed in the above background technology that the consistency of the positioning plate movement is difficult to ensure, which easily causes position deviation of the semicircular pipes on both sides.

[0007] The technical solution adopted by the utility model is as follows: a construction steel pipe welding positioning fixture, including a frame, an inner support assembly is provided on the frame, the inner support assembly can expand or contract, and is used to support the inner wall of the C-shaped round tube after expansion, and is used to take out the C-shaped round tube after contraction; the inner support mechanism includes a support seat, the support seat is provided on the longitudinal beam of the frame, a bell is provided on the support seat, and a first hydraulic cylinder is provided at one end of the bell; a first pull rod is provided at the piston end of the first hydraulic cylinder; a first expansion member and a second expansion member are provided on the first pull rod, and the first expansion member and the second expansion member are connected by a first connecting rod; the first expansion member includes a positioning column, the positioning column is connected to the bell, and the center of the positioning column is provided with a Light hole; a blind hole is provided on the side wall of the positioning column, and several blind holes are arranged at equal angles, and a sliding rod is slidably connected to the blind hole; an inner lining block is provided on the sliding rod; a first ear seat is provided on the inner lining block; a connecting rod is hinged on the first ear seat, and a second ear seat is hinged on the free end of the connecting rod, and a movable column is provided on the second ear seat, and a sliding hole is provided in the center of the movable column; the sliding hole is slidably connected to the first pull rod; the movable column is fixed to the first pull rod by a positioning pin; a first spring is sleeved on the side wall of the first pull rod, and the first spring is located between the positioning column and the movable column in an elastically connected manner; the structure of the second expander is the same as that of the first expander, and the positioning column of the second expander is fixed to the first connecting rod.

[0008] The beneficial effect of the present invention is that the present invention can fix the position of the C-shaped circular tube inside and outside by setting the inner support component and the clamping component, the clamping is stable, the weld has no deviation, the welding effect is guaranteed, and it is suitable for different models of C-shaped circular tubes. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the side cross-sectional structure of a C-shaped circular tube.

[0010] Figure 2 This is a side view structural diagram of this application.

[0011] Figure 3 A schematic diagram of the three-dimensional structure of the rack.

[0012] Figure 4 This is a schematic diagram of the main structure of the inner support component.

[0013] Figure 5 It is a schematic diagram of the main cross-sectional structure of the inner support component.

[0014] Figure 6 It is a schematic diagram of the top cross-sectional structure of the inner support component.

[0015] Figure 7 Schematic diagram of the top structure of the second pull rod.

[0016] Figure 8 It is a schematic diagram of the three-dimensional structure of the second hydraulic cylinder.

[0017] Figure 9 Schematic diagram of the three-dimensional structure of the carrier.

[0018] Figure 10 It is a schematic diagram of the three-dimensional structure of the clamping component.

[0019] Figure 11 It is a side view structural diagram of the indicator panel.

[0020] Figure 12 It is a schematic diagram of the three-dimensional structure of the roller.

[0021] Figure 13 It is a side structural schematic diagram of the second spring.

[0022] Figure 14 This is a side view structural diagram of the welding gun on the robotic arm.

[0023] In the figure: 1. C-shaped round tube; 2. frame; 3. inner support assembly; 4. clamping assembly; 5. crossbeam; 6. vertical beam; 7. middle beam; 8. reinforcing rib; 9. longitudinal beam; 10. support seat; 11. bell; 12. first hydraulic cylinder; 13. first pull rod; 14. first expansion piece; 15. second expansion piece; 16. first connecting rod; 17. positioning column; 18. light hole; 19. blind hole; 20. sliding rod; 21. inner lining block; 22. first ear seat; 23. connecting rod; 24. second ear seat; 25. moving column; 26. sliding hole; 27. positioning pin; 28. first spring; 29. second pull rod ;30. Third expansion piece;31. Fourth expansion piece;32. Second connecting rod;33. Third connecting rod;34. Guide rail;35. Second hydraulic cylinder;36. Carrier seat;37. Shaft groove;38. Carrier plate;39. Bearing seat;40. Bidirectional screw;41. Reducer motor;42. Moving seat;43. Guide rod;44. Clamp;45. Clamp seat;46. Third ear seat;47. Indicator plate;48. Slide seat;49. Shaft seat;50. Roller;51. Second spring;52. Right-angle seat;53. Linear motor;54. Mover seat;55. Robot arm;56. Pipe clamp;57. Welding gun. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings. The following description is only used to illustrate the technical solution of the present invention and is not intended to limit it.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, 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 therefore cannot be understood as limiting the present invention; in addition, the terms "first", "second", "third", "fourth" and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features; in the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0026] like Figure 2 As shown, a construction steel pipe welding positioning fixture includes a frame 2, an inner support component 3 is installed on the frame 2, and the inner support component 3 can expand or contract. After expansion, it is used to support the inner wall of the C-shaped circular tube 1, and after contraction, it is used to remove the C-shaped circular tube 1; a clamping component 4 is installed on the frame 2, and the clamping component 4 is used to center and clamp the outer wall of the C-shaped circular tube 1. By arranging the inner support component 3 and the clamping component 4, the position of the C-shaped circular tube 1 can be fixed inside and outside, the clamping is stable, the weld has no deviation, the welding effect is guaranteed, and it is suitable for different models of C-shaped circular tubes 1.

[0027] like Figure 3 As shown, as an optimization of the embodiment, the frame 2 includes a crossbeam 5, the material of the crossbeam 5 is channel steel, the number of the crossbeams 5 is at least 2, and the two crossbeams 5 are symmetrically arranged; the crossbeam 5 is connected with a vertical beam 6 by high-strength bolts, the material of the vertical beam 6 is channel steel, and at least 3 vertical beams 6 are arranged on one crossbeam 5; the waist of the vertical beam 6 is connected with a middle beam 7 by high-strength bolts, and the material of the middle beam 7 is channel steel; the angle between the vertical beam 6 and the crossbeam 5 is connected with a reinforcing rib 8 by high-strength bolts, and the reinforcing rib 8 can improve the rigidity and strength of the structure; the gap between the two crossbeams 5 is connected with a longitudinal beam 9 by high-strength bolts, the material of the longitudinal beam 9 is channel steel, and the number of the longitudinal beam 9 is at least 3, and the high-strength bolt connection can be replaced by welding or riveting.

[0028] like Figures 4-6As shown, as an optimization of the embodiment, the internal support mechanism includes a support seat 10, the support seat 10 is arranged on the longitudinal beam 9 of the frame 2, and a bell jar 11 is installed on the support seat 10, and one end of the bell jar 11 is connected to the first hydraulic cylinder 12; the piston end of the first hydraulic cylinder 12 is connected to the first pull rod 13 through a flange; the first pull rod 13 is installed with a first expansion member 14 and a second expansion member 15, and the first expansion member 14 and the second expansion member 15 are connected by a first connecting rod 16, and the number of the first connecting rod 16 is at least 4; the first expansion member 14 includes a positioning column 17, the positioning column 17 is connected to the bell jar 11, and a light hole 18 is provided in the center of the positioning column 17; a blind hole 19 is provided on the side wall of the positioning column 17, and the number of the blind holes 19 in this embodiment is 6, and the blind holes 19 are not limited to 6. The 6 blind holes 19 are arranged at equal angles, and a sliding rod 20 is slidably connected to the blind hole 19; an inner lining block 21 is connected to the sliding rod 20 by a countersunk bolt, and the shape of the inner lining block 21 is arc-shaped, preferably 6 inner The lining block 21 deviates from the upper position to avoid the inner lining block 21 and the weld joint affecting the welding operation; a first ear seat 22 is installed on the inner lining block 21; a connecting rod 23 is hinged on the first ear seat 22, and a second ear seat 24 is hinged on the free end of the connecting rod 23; a moving column 25 is installed on the second ear seat 24, and a sliding hole 26 is opened in the center of the moving column 25; the sliding hole 26 is slidably connected to the first pull rod 13; the moving column 25 is fixed to the first pull rod 13 by a positioning pin 27; the side wall of the first pull rod 13 A first spring 28 is sleeved and the first spring 28 is located between the positioning column 17 and the movable column 25 in an elastically connected manner; the structure of the second expander 15 is the same as that of the first expander 14, and the positioning column 17 of the second expander 15 is fixed to the first connecting rod 16; the first pull rod 13 is driven to move by the first hydraulic cylinder 12, and then the movable column 25 is close to the positioning column 17, and the connecting rod 23 causes the inner lining block 21 to expand synchronously until the inner lining block 21 is against the inner wall of the C-shaped circular tube 1.

[0029] like Figure 7 As shown, as an optimization of the embodiment, taking into account that the length of the C-shaped circular tube 1 is different, the free end of the first pull rod 13 is connected to the second pull rod 29 through a flange. In practice, multiple second pull rods 29 are further set as needed. The second pull rod 29 is equipped with a third expander 30 and a fourth expander 31. The third expander 30 is connected to the second expander 15 through a second connecting rod 32, and the number of the second connecting rods 32 is at least 4; the third expander 30 is connected to the fourth expander 31 through a third connecting rod 33, and the number of the third connecting rods 33 is at least 4; the structure of the third expander 30 and the fourth expander 31 is the same as that of the second expander 15. By setting the third expander 30 and the fourth expander 31, the inner support assembly 3 can be lengthened to adapt to different models of C-shaped circular tubes 1.

[0030] like Figure 8 and Figure 9As shown, as an optimization of the embodiment, considering that one side of the second pull rod 29 is fixed, it is convenient to place and remove the C-shaped circular tube 1, but the installation stability of the inner support assembly 3 is unreliable, and a guide rail 34 is installed on the frame 2, and a second hydraulic cylinder 35 is slidably connected to the guide rail 34. The sliding direction of the second hydraulic cylinder 35 is longitudinal, and a carrier 36 is installed on the piston end of the second hydraulic cylinder 35. The carrier 36 has an axial groove 37, and the axial groove 37 is rotatably connected to the side wall of the second pull rod 29. By setting the carrier 36, the support stability can be improved, and the second hydraulic cylinder 35 can slide, which is convenient for placing and removing the C-shaped circular tube 1.

[0031] like Figure 10 As shown, as an optimization of the embodiment, multiple clamping assemblies 4 can be provided as needed in practice. The clamping assembly 4 includes a carrier plate 38, which is provided on the frame 2. The carrier plate 38 is connected to a bearing seat 39. The bearing seat 39 is rotatably connected to a bidirectional lead screw 40, which is driven by a reduction motor 41; the bidirectional lead screw 40 is threadedly connected to a movable seat 42, and the number of the movable seats 42 is two, and the two movable seats 42 are symmetrically arranged. The bidirectional lead screw 40 drives the movable seats 42 to move toward or away from each other. A guide rod 43 is slidably connected to the movable seat 42, and there are two guide rods 43. The two guide rods 43 are distributed on both sides of the bidirectional screw 40, and the guide rods 43 are connected to the bearing seat 39; a splint 44 is installed on the movable seat 42, and a clamping seat 45 is installed on the splint 44. The shape of the clamping seat 45 is U-shaped, and the notches of the two clamping seats 45 are opposite to each other. The clamping seat 45 is used to clamp the outer wall of the C-shaped circular tube 1. The bidirectional screw 40 is driven to rotate by the reduction motor 41, and the two clamping seats 45 simultaneously clamp the outer wall of the C-shaped circular tube 1 in the center.

[0032] like Figure 11 As shown, as an optimization of the embodiment, taking into account the deviation of the hoisting of the C-shaped circular tube 1, the weld joint is easily deflected to the upper position, and the side wall of the positioning column 17 is connected to the third ear seat 46, and the third ear seat 46 is hinged with an indicator plate 47, which can be screwed into the weld joint of the C-shaped circular tube 1, so that welding operations can be carried out; if the position of the C-shaped circular tube 1 deviates, the indicator plate 47 cannot be screwed into the weld joint of the C-shaped circular tube 1, so that the position of the C-shaped circular tube 1 needs to be readjusted.

[0033] like Figure 12 and Figure 13As shown, as an optimization of the embodiment, considering that the C-shaped round tube 1 needs to be lengthened, if the clamping seat 45 clamps the C-shaped round tube 1, the C-shaped round tube 1 cannot rotate, and it is difficult to carry out axial welding operations. A slide 48 is installed on the clamping plate 44. The number of slides 48 is 4, and 2 slides 48 form a group. The 2 groups of slides 48 are distributed on the upper and lower sides of the clamping seat 45; the slide 48 is slidably connected to the shaft seat 49, and the shaft seat 49 is rotatably connected to the roller 50, and the shaft seat 49 is installed There is a second spring 51, which is connected to the clamping plate 44 in an elastic connection. When the reduction motor 41 drives the clamping seat 45 to move toward each other, the roller 50 contracts, so that the C-shaped circular tube 1 is clamped by the clamping seat 45. If the C-shaped circular tube 1 needs to be lengthened, the reduction motor 41 drives the clamping seat 45 to move away, and the roller 50 extends. The roller 50 clamps the C-shaped circular tube 1, and at the same time the inner support assembly 3 contracts, and the C-shaped circular tube 1 can be rotated to perform axial welding of the C-shaped circular tube 1.

[0034] like Figure 14 As shown, as an optimization of the embodiment, considering that the C-shaped circular tube 1 needs to be welded, a right-angle seat 52 is installed on the vertical beam 6 of the frame 2, and a linear motor 53 is connected to the right-angle seat 52. The mover seat 54 of the linear motor 53 is displaced along the lateral direction of the frame 2, and a robotic arm 55 is installed on the mover seat 54 of the linear motor 53. A pipe clamp 56 is installed on the robotic arm 55, and a welding gun 57 is installed on the pipe clamp 56. The welding gun 57 is used for radial welding and axial welding of the C-shaped circular tube 1.

[0035] Although the present invention has been described in detail with reference to the aforementioned examples, those skilled in the art can still make modifications to the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A construction steel pipe welding positioning fixture, comprising a frame (2), characterized in that: An inner support assembly (3) is provided on the frame (2), and the inner support mechanism includes a support seat (10), the support seat (10) is provided on the longitudinal beam (9) of the frame (2), a bell cover (11) is provided on the support seat (10), and a first hydraulic cylinder (12) is provided at one end of the bell cover (11); a first pull rod (13) is provided at the piston end of the first hydraulic cylinder (12); a first expansion member (14) and a second expansion member (15) are provided on the first pull rod (13), and the first expansion member (14) and the second expansion member (15) are connected through a first connecting rod (16); the first expansion member (14) includes a positioning column (17), the positioning column (17) is connected to the bell cover (11), and a light hole (18) is provided at the center of the positioning column (17); the side wall of the positioning column (17) is opened. A blind hole (19) is provided, and a plurality of blind holes (19) are arranged at equal angles. A sliding rod (20) is slidably connected to the blind hole (19); an inner lining block (21) is provided on the sliding rod (20); a first ear seat (22) is provided on the inner lining block (21); a connecting rod (23) is hinged on the first ear seat (22), and a second ear seat (24) is hinged on the free end of the connecting rod (23); a movable column (25) is provided on the second ear seat (24), and a sliding hole (26) is provided at the center of the movable column (25); the sliding hole (26) is slidably connected to the first pull rod (13); the movable column (25) is fixed to the first pull rod (13) by a positioning pin (27); a clamping assembly (4) is provided on the frame (2), and the clamping assembly (4) is used to center and clamp the outer wall of the C-shaped circular tube (1).

2. A construction steel pipe welding positioning fixture according to claim 1, characterized in that: A first spring (28) is sleeved on the side wall of the first pull rod (13), and the first spring (28) is located between the positioning column (17) and the movable column (25) in an elastic connection manner.

3. The construction steel pipe welding positioning fixture according to claim 1, characterized in that: The structure of the second expansion piece (15) is the same as that of the first expansion piece (14), and the positioning column (17) of the second expansion piece (15) is fixed to the first connecting rod (16).

4. The construction steel pipe welding positioning fixture according to claim 1, characterized in that: The frame (2) includes a crossbeam (5), a vertical beam (6) is provided on the crossbeam (5); a middle beam (7) is provided at the waist of the vertical beam (6); a reinforcing rib (8) is provided at the angle between the vertical beam (6) and the crossbeam (5); and a longitudinal beam (9) is provided in the gap between the two crossbeams (5).

5. The construction steel pipe welding positioning fixture according to claim 1, characterized in that: A second pull rod (29) is provided at the free end of the first pull rod (13), and a third expansion member (30) and a fourth expansion member (31) are provided on the second pull rod (29). The third expansion member (30) is connected to the second expansion member (15) via a second connecting rod (32); the third expansion member (30) is connected to the fourth expansion member (31) via a third connecting rod (33); the structures of the third expansion member (30) and the fourth expansion member (31) are the same as the structure of the second expansion member (15).

6. The construction steel pipe welding positioning fixture according to claim 1, characterized in that: The frame (2) is provided with a guide rail (34), a second hydraulic cylinder (35) is slidably connected to the guide rail (34), a piston end of the second hydraulic cylinder (35) is provided with a carrier (36), the carrier (36) has an axis groove (37), and the axis groove (37) is rotatably connected to the side wall of the second pull rod (29).

7. The construction steel pipe welding positioning fixture according to claim 1, characterized in that: The clamping assembly (4) includes a carrier plate (38), which is arranged on the frame (2). A bearing seat (39) is provided on the carrier plate (38), and a bidirectional screw (40) is rotatably connected to the bearing seat (39), and the bidirectional screw (40) is driven by a reduction motor (41); a movable seat (42) is threadedly connected to the bidirectional screw (40), and the number of movable seats (42) is two, and the two movable seats (42) are symmetrically arranged; a guide rod (43) is slidably connected to the movable seat (42), and the guide rod (43) is connected to the bearing seat (39); a clamping plate (44) is provided on the movable seat (42), and a clamping seat (45) is provided on the clamping plate (44), and the clamping seat (45) is used to clamp the outer wall of the C-shaped circular tube (1).

8. The construction steel pipe welding positioning fixture according to claim 1, characterized in that: A third ear seat (46) is provided on the side wall of the positioning column (17), and an indicator plate (47) is hinged on the third ear seat (46). The indicator plate (47) can be screwed into the weld of the C-shaped circular tube (1).

9. The construction steel pipe welding positioning fixture according to claim 7, characterized in that: The clamping plate (44) is provided with a slide seat (48), which is distributed on the upper and lower sides of the clamping seat (45); the slide seat (48) is slidably connected to a shaft seat (49), and the shaft seat (49) is rotatably connected to a roller (50), and the shaft seat (49) is provided with a second spring (51), which is connected to the clamping plate (44) in an elastic connection manner.

10. The construction steel pipe welding positioning fixture according to claim 4, characterized in that: The vertical beam (6) is provided with a right-angle seat (52), the right-angle seat (52) is provided with a linear motor (53), a mover seat (54) of the linear motor (53) is displaced along the lateral direction of the frame (2), a mechanical arm (55) is provided on the mover seat (54) of the linear motor (53), a pipe clamp (56) is provided on the mechanical arm (55), a welding gun (57) is provided on the pipe clamp (56), and the welding gun (57) is used for radial welding and axial welding of the C-shaped circular tube (1).

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