Convex-ring-shaped small robot for inner welding of concrete-filled steel tube member

Abstract

The utility model relates to the technical field of welding devices, and discloses a convex-ring-shaped small robot for the inner welding of a concrete filled steel tube member, which comprises a bearing vehicle body, the front end of the bearing vehicle body is provided with a groove, an air cylinder motor is fixedly connected in the groove, and the air cylinder motor is fixedly connected with one end of a telescopic rod; and the welding structure comprises a welding robot and a supporting piece, the supporting piece is fixedly connected to the other end of the telescopic rod and extends into the concrete structure, a welding piece is arranged in the concrete structure, and the welding robot moves on the supporting piece to weld the welding piece and the concrete structure. The automatic welding device achieves automatic and accurate welding of the inner wall of the concrete construction and the welding piece, is simple in structure and low in manufacturing cost, and guarantees stability of the concrete construction.

Description

Technical Field

[0001] The utility model relates to the technical field of welding devices, in particular to a small robot for inner welding of convex rings of concrete-filled steel tubular members. Background Art

[0002] With the progress of China's infrastructure construction technology and the needs of social infrastructure construction, the sizes of concrete-filled steel tubular members are gradually increasing. To increase the strength and stiffness of concrete-filled steel tubular members, concrete is poured into the steel pipes and tamped. However, the problems of concrete debonding and voids commonly existing in concrete-filled steel tubular columns, beams, and piles not only affect the structural stress state and durability but also lead to a series of safety and economic problems.

[0003] Current automatic welding equipment, such as three-dimensional welding robotic arms, large welding platforms, etc., all have characteristics such as complex programming, strict site requirements, poor applicability to components, and high costs, making it difficult to perform automatic welding of convex shapes inside steel pipes. With the maturity of automatic welding robot technology, due to its small size, stability, easy adjustment, and strong applicability to various components, it provides an effective technical approach to solve the above problems. Currently, there is no case of an automatic welding robot welding convex rings inside steel pipes.

[0004] Therefore, there is an urgent need for a small robot for inner welding of convex rings of concrete-filled steel tubular members to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a small robot for inner welding of convex rings of concrete-filled steel tubular members to solve the problems existing in the above-mentioned prior art.

[0006] To achieve the above purpose, the utility model provides the following solution: The utility model provides a small robot for inner welding of convex rings of concrete-filled steel tubular members, including:

[0007] A load-bearing vehicle body, with a groove opened at the front end of the load-bearing vehicle body, and a screw telescopic motor group fixedly connected inside the groove;

[0008] A welding structure, including a welding robot and a support member. The support member is fixedly connected to the screw telescopic motor group and extends into the concrete member. A welding part is arranged inside the concrete member, and the welding robot moves on the support member to weld the welding part and the concrete member.

[0009] Preferably, the welding robot includes a moving vehicle body, the moving vehicle body is magnetically connected to the support member and moves on the support member, and a welding head is connected to the front end of the moving vehicle body through an adjusting member.

[0010] Preferably, the adjusting member includes a cylinder and a rotary plain bearing. The cylinder and the rotary plain bearing are respectively connected to the moving vehicle body. One end of a support rod is articulated to the telescopic end of the cylinder through a hinge joint. The support rod is connected to the rotary plain bearing, and the other end of the support rod extends out of the rotary plain bearing and is fixedly connected to the welding head.

[0011] Preferably, a laser locator is fixedly connected to the bearing vehicle body.

[0012] Preferably, the welding member is of a convex ring structure.

[0013] Preferably, the support member is an annular track.

[0014] Preferably, the diameter of the welding member is 300 mm - 1000 mm.

[0015] Compared with the prior art, the present utility model has the following advantages and technical effects:

[0016] A small robot for inner welding of a convex ring of a concrete-filled steel tube member provided by the present utility model. The bearing vehicle body drives the support member to extend into the concrete structure. A welding member is arranged in the concrete structure. After the welding robot reaches the designated position, the welding robot moves on the support member to realize the welding of the welding member and the concrete structure. This application realizes the automatic and precise welding of the inner wall of the concrete structure and the welding member, has a simple structure, low cost, and ensures the stability of the concrete structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts:

[0018] Figure 1 It is a schematic structural diagram of the bearing vehicle body of the present utility model;

[0019] Figure 2 It is a schematic structural diagram of the welding robot of the present utility model;

[0020] Figure 3 It is a schematic structural diagram of the adjusting member of the present utility model;

[0021] Figure 4 It is a schematic diagram of the angle adjustment state of the welding head of the present utility model;

[0022] Figure 5 It is a schematic diagram of the internal structure of the concrete-filled steel tube member of the present utility model;

[0023] Figure 6 Schematic diagram of the insertion state of the welding robot of the present utility model;

[0024] Figure 7 Schematic diagram of the welding state of the present utility model;

[0025] Figure 8 Schematic diagram of the telescopic structure of the screw telescopic motor group of the present utility model;

[0026] Among them, 1. Load-bearing vehicle body; 2. Welding robot; 21. Moving vehicle body; 22. Welding head; 3. Support member; 4. Concrete structure; 5. Welding part; 6. Laser locator; 61. Laser reflector; 7. Screw telescopic motor group; 8. Vertical direction constraint track; 9. Cylinder; 10. Hinge joint; 11. Support rod; 12. Rotating plain bearing. Detailed implementation manners

[0027] 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.

[0028] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0029] Referring to Figures 1-8 , the present utility model provides a small robot for inner welding convex rings of steel tube concrete members, including:

[0030] A load-bearing vehicle body 1, with a groove opened at the front end of the load-bearing vehicle body 1, and a screw telescopic motor group 7 fixedly connected in the groove;

[0031] A welding structure, including a welding robot 2 and a support member 3. The support member 3 is fixedly connected to the screw telescopic motor group 7 and extends into the concrete structure 4. A welding part 5 is arranged in the concrete structure 4, and the welding robot 2 moves on the support member 3 to weld the welding part 5 and the concrete structure 4.

[0032] Referring to Figure 1 , specifically, the screw telescopic motor group 7 performs height lifting and length extension. A vertical direction constraint track 8 is also fixedly connected in the groove to constrain the stable lifting of the screw telescopic motor group 7, thereby controlling the height adjustment of the support member 3. The telescopic movement realizes the adjustment of the lateral position of the support member 3, so that the support member 3 extends into the concrete structure 4.

[0033] Reference Figure 8 In one embodiment of the present utility model, the telescopic structure of the screw telescopic motor group 7 is a turbine and turbine structure, which is used to ensure its stable telescoping.

[0034] In a further optimized solution, the welding robot 2 includes a moving vehicle body 21, the moving vehicle body 21 is magnetically connected to the support member 3 and moves on the support member 3, and a welding head 22 is arranged at the front end of the moving vehicle body 21 and is connected through an adjusting member.

[0035] Reference Figure 3 The welding robot 2 moves on the support member 3 through the moving vehicle body 21, and the welding head 22 is used to weld the welded part 5 and the concrete structure 4.

[0036] In a further optimized solution, the adjusting member includes a cylinder 9 and a rotary plain bearing 12. The cylinder 9 and the rotary plain bearing 12 are respectively connected to the moving vehicle body 21. The telescopic end of the cylinder 9 is hinged to one end of a support rod 11 through a hinge joint 10. The support rod 11 is connected to the rotary plain bearing 12, and the other end of the support rod 11 extends out of the rotary plain bearing 12 and is fixedly connected to the welding head 22.

[0037] Reference Figure 3 、 Figure 4 By setting the cylinder 9 to drive the support rod 11 to rotate around the rotary plain bearing 12, the angle of the top welding head 22 can be adjusted during rotation, so that it is suitable for welding points at different angles.

[0038] In a further optimized solution, a laser locator 6 is fixedly connected to the bearing vehicle body 1.

[0039] During use, the laser locator 6 facilitates the bearing vehicle body 1 to accurately reach the specified position during moving and positioning, and at the same time improves the welding accuracy of the welded part 5 in the concrete structure 4.

[0040] In one embodiment of the present utility model, the laser locator 6 is a TOF type laser sensor, and a supporting laser reflector 61 is also provided for distance measurement and limit. During use, first calibrate the length of the steel pipe and the distance between the laser reflector 61 and the steel pipe, and then transport the support member 3 to the same plane on the outer edge of the large steel pipe. The moving distance of the steel pipe is limited by presetting parameters of the sensor. The principle is the prior art and will not be elaborated here.

[0041] In a further optimized solution, the welded part 5 is a convex ring structure.

[0042] By welding the welded part 5 with a convex ring structure on the inner wall of the concrete structure 4, the strength of the concrete structure 4 is improved.

[0043] In a further optimized solution, the support member 3 is an annular track.

[0044] The support member 3 is an annular track and is made of metal. The annular track is adapted to the inside of the welded part 5, and preferably a WD type rigid track.

[0045] In a further optimized solution, the diameter of the welded part 5 is 300 mm - 1000 mm.

[0046] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing 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 therefore should not be construed as a limitation to the present utility model.

[0047] The embodiments described above are only for describing the preferred mode of the present utility model, and do not limit the scope of the present utility model. Without departing from the design spirit of the present utility model, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present utility model shall fall within the protection scope determined by the claims of the present utility model.

Claims

1. A small robot with an inner welding convex ring shape for a steel tube concrete member, characterized in that: include: A carrier body (1), wherein a groove is formed at the front end of the carrier body (1), and a screw telescopic motor unit (7) is fixedly connected in the groove; A welding structure comprises a welding robot (2) and a support member (3), wherein the support member (3) is fixedly connected to the screw telescopic motor group (7) and extends into a concrete structure (4), wherein a welding member (5) is arranged in the concrete structure (4), and the welding robot (2) moves on the support member (3) to weld the welding member (5) and the concrete structure (4).

2. A small robot with a convex ring shape for inner welding of a steel tube concrete member according to claim 1, characterized in that: The welding robot (2) comprises a mobile body (21), the mobile body (21) is magnetically connected to the support member (3) and moves on the support member (3), and a welding head (22) connected to the mobile body (21) via an adjusting member is provided at the front end of the mobile body (21).

3. A small robot with a convex ring shape for inner welding of a steel tube concrete member according to claim 2, characterized in that: The adjusting member comprises a cylinder (9) and a rotating plane bearing (12), wherein the cylinder (9) and the rotating plane bearing (12) are respectively connected to the moving vehicle body (21), and the telescopic end of the cylinder (9) is hinged to one end of a support rod (11) through a hinge joint (10), and the support rod (11) is connected to the rotating plane bearing (12), and the other end of the support rod (11) extends out of the rotating plane bearing (12) and is fixedly connected to the welding head (22).

4. The small robot with a convex ring shape for inner welding of a steel tube concrete member according to claim 1, characterized in that: A laser locator (6) is fixedly connected to the carrier vehicle body (1).

5. The small robot with a convex ring shape for inner welding of a steel tube concrete member according to claim 1, characterized in that: The welding piece (5) is a convex annular structure.

6. The small robot with a convex ring shape for internal welding of a steel tube concrete member according to claim 1, characterized in that: The support member (3) is a ring track.

7. The small robot with a convex ring shape for inner welding of a steel tube concrete member according to claim 1, characterized in that: The diameter of the welding piece (5) is 300 mm-1000 mm.

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