Weld joint heat treatment auxiliary tool

Abstract

The utility model relates to the technical field of welding seam heat treatment, and discloses a welding seam heat treatment auxiliary tool which comprises a treatment box body and a control box installed on the outer side of the treatment box body, multiple sets of first electric push rods are sequentially installed on one side outside the treatment box body at equal intervals, and multiple sets of servo motors are sequentially installed on the other side outside the treatment box body at equal intervals; the output shaft end of the first electric push rod and the output shaft end of the servo motor penetrate through the interior of the treatment box body and are provided with clamping assemblies used for fixing the metal pipeline, the clamping assemblies are rotationally connected with the output shaft end of the first electric push rod and fixedly connected with the output shaft end of the servo motor, and a rack is fixedly arranged on the upper portion in the treatment box body; a plurality of sets of through holes are sequentially formed in the rack at equal intervals, electric sliding rails are installed in the through holes, and a plurality of electric sliding blocks are installed in the electric sliding rails in a sliding mode. According to the heat treatment device, the aim of simultaneously carrying out heat treatment on a plurality of welding seam parts on a plurality of metal pipelines is achieved, the working effect is improved, meanwhile, the metal pipelines are heated more uniformly, and the heat treatment effect is improved.

Description

Technical Field

[0001] This application relates to the field of weld heat treatment technology, and in particular to an auxiliary tooling for weld heat treatment. Background Technology

[0002] Welding, also known as fusion welding, is a manufacturing process and technology that joins metals or other thermoplastic materials such as plastics by heating, high temperature, or high pressure. After welding, a weld seam is formed. To prevent brittle fracture, delayed cracking, stress corrosion, and hydrogen corrosion at the welded area, local heat treatment is required. This involves heating and holding the weld seam area at a certain temperature, followed by furnace cooling or air cooling. The purpose is to eliminate residual stress in the welded joint, soften hardened areas, improve the weld microstructure and properties, and enhance the plasticity and toughness of the joint.

[0003] When repairing metal pipes, only local welding is often required, and the weld seam cannot form a circumferential weld seam. However, when using existing metal pipe weld heat treatment equipment, the heat treatment must be carried out around the pipe at least once, making it impossible to heat treat only the weld seam. This can easily affect the quality of other parts of the pipe and is not convenient for heat treating multiple weld seams on multiple metal pipes at the same time, thus reducing work efficiency. Utility Model Content

[0004] To address the issue that existing metal pipe maintenance often only requires localized welding, resulting in non-circular welds, and that existing metal pipe weld heat treatment equipment requires heat treatment around the entire pipe, making it impossible to target only the weld area, potentially affecting the quality of other parts of the pipe, and making it inconvenient to simultaneously heat treat multiple weld areas on multiple metal pipes, thus reducing work efficiency, this application provides an auxiliary tooling for weld heat treatment.

[0005] The auxiliary tooling for weld heat treatment provided in this application adopts the following technical solution:

[0006] A weld heat treatment auxiliary fixture includes a treatment box and a control box installed on the outside of the treatment box. Multiple sets of first electric push rods are sequentially and equally spaced on one side of the treatment box, and multiple sets of servo motors are sequentially and equally spaced on the other side. The output shafts of the first electric push rods and the servo motors are respectively installed through clamping assemblies for fixing metal pipes inside the treatment box. The clamping assemblies are rotatably connected to the output shafts of the first electric push rods and fixedly connected to the output shafts of the servo motors. A frame is fixedly installed above the treatment box. Multiple sets of through holes are sequentially and equally spaced on the frame. Electric slide rails are installed inside the through holes. Multiple electric sliders are slidably installed inside the electric slide rails. A second electric push rod is installed on the top of each electric slider. A fixed seat is installed on the output shaft of the second electric push rod. Heating rings are symmetrically and slidably installed on the fixed seats, and electric heating plates are installed inside the heating rings.

[0007] Preferably, the clamping assembly includes a fixed cylinder rotatably mounted on the output shaft end of the first electric push rod, a first arc-shaped clamping block fixedly mounted inside the lower part of the fixed cylinder, and a second arc-shaped clamping block movably mounted inside the upper part of the fixed cylinder. The top of the fixed cylinder is provided with a threaded hole, and a screw is threadedly connected to the threaded hole. The top of the second arc-shaped clamping block is connected to the screw.

[0008] Preferably, the electric slider adopts a "T" shaped structure.

[0009] Preferably, the outer side of the processing box is equipped with an insulated and sealed door.

[0010] Preferably, the fixed base has a sliding groove, a bidirectional lead screw is rotatably installed in the sliding groove, and sliders are installed at both ends of the bidirectional lead screw via helical drive. The sliders are slidably installed in the sliding groove, and the top end of the heating ring is fixedly connected to the sliders.

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

[0012] This auxiliary tooling for weld heat treatment enables simultaneous heat treatment of multiple weld areas on multiple metal pipes, improving work efficiency and ensuring more uniform heating of the metal pipes, thus enhancing the heat treatment effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the processing box in this utility model;

[0015] Figure 3 This is a side view of the fixed cylinder in this utility model;

[0016] Figure 4 This is a top view of the frame in this utility model;

[0017] Figure 5 This is a schematic diagram of the internal structure of the fixed base in this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1. Processing box; 2. Control box; 3. First electric push rod; 4. Servo motor; 5. Frame; 6. Through hole; 7. Electric slider; 8. Second electric push rod; 9. Fixed seat; 10. Heating ring; 11. Electric heating plate; 12. First arc-shaped clamping block; 13. Fixed cylinder; 14. Screw; 15. Second arc-shaped clamping block; 16. Bidirectional lead screw; 17. Movable block. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1 to 5 This utility model provides a technical solution:

[0021] A welding heat treatment auxiliary fixture includes a treatment box 1 and a control box 2 installed on the outside of the treatment box 1. Multiple sets of first electric push rods 3 are installed at equal intervals on one side of the treatment box 1, and multiple sets of servo motors 4 are installed at equal intervals on the other side. The output shaft ends of the first electric push rods 3 and servo motors 4 are respectively installed through the treatment box 1 with clamping components for fixing metal pipes. The clamping components are rotatably connected to the output shaft ends of the first electric push rods 3 and fixedly connected to the output shaft ends of the servo motors 4. A frame 5 is fixedly installed at the top inside the treatment box 1. Multiple sets of through holes 6 are opened at equal intervals on the frame 5. Electric slide rails are installed inside the through holes 6. Multiple electric sliders 7 are slidably installed inside the electric slide rails. A second electric push rod 8 is installed on the top of each electric slider 7. A fixed seat 9 is installed on the output shaft end of the second electric push rod 8. A heating ring 10 is symmetrically slidably installed on the fixed seat 9. An electric heating plate 11 is installed inside the heating ring 10.

[0022] During operation, the processing chamber 1 is first opened, and the metal pipes to be heat-treated are placed into the processing chamber 1 one by one. When placing them, both ends of the metal pipes are inserted into the clamping assembly for fixation. The clamping assembly can be moved by the first electric push rod 3, thereby fixing metal pipes of different lengths. Then, according to the weld seam on the metal pipe, the electric slide rail and electric slider 7 are moved to adjust the position of the heating ring 10, so that multiple weld seams on multiple metal pipes can be heat-treated at the same time, improving the working efficiency. After the position is adjusted, the fixing seat 9 and the heating ring 10 are moved towards the metal pipe by the second electric push rod 8, so that the two heating rings 10 are on the outside of the metal pipe. The weld seam is heat-treated by the electric heating plate 11. At the same time, the servo motor 4 can be started to drive the metal pipe to rotate, so that the metal pipe is heated more evenly, improving the heat treatment effect.

[0023] The clamping assembly includes a fixed cylinder 13 rotatably mounted on the output shaft end of the first electric push rod 3, a first arc-shaped clamping block 12 fixedly mounted inside the lower part of the fixed cylinder 13, and a second arc-shaped clamping block 15 movably mounted inside the upper part of the fixed cylinder 13. The top of the fixed cylinder 13 has a threaded hole, and a screw 14 is threaded into the threaded hole. The top of the second arc-shaped clamping block 15 is connected to the screw 14. When fixing, both ends of the metal pipe are inserted into the fixed cylinder 13 and placed on the first arc-shaped clamping block 12. Then, the screw 14 is rotated to move the second arc-shaped clamping block 15 until it is close to the metal pipe, thus achieving the purpose of clamping.

[0024] The electric slider 7 adopts a "T"-shaped structure, which improves sliding stability.

[0025] The outer side of the treatment chamber 1 is equipped with an insulated and sealed door. During heat treatment, the insulated and sealed door can be closed to prevent heat loss and play a role in heat preservation.

[0026] A sliding groove is provided on the fixed base 9, and a bidirectional lead screw 16 is rotatably installed in the sliding groove. Movable blocks 17 are installed at both ends of the bidirectional lead screw 16 via helical drive. The movable blocks 17 are slidably installed in the sliding groove. The top of the heating ring 10 is fixedly connected to the movable block 17. During operation, the bidirectional lead screw 16 can be driven to rotate in both directions, thereby causing the movable blocks 17 to move in opposite directions or relative to each other in the sliding groove, thereby adjusting the distance between the heating rings 10, so that the distance between the electric heating plate 11 and the metal pipe is smaller. After processing, the heating rings 10 can also be driven to move away from the metal pipe, making it easier to remove the metal pipe. It should be noted that a rotary motor that drives the bidirectional lead screw 16 to rotate is fixedly installed on the outside of the fixed base 13. One end of the bidirectional lead screw 16 passes through the outside of the fixed base 13 and is connected to the output end of the rotary motor.

[0027] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0028] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0029] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0030] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A weld heat treatment assist tool, characterized by: The utility model relates to a metal pipeline processing device, including processing box (1) and the control box (2) installed outside processing box (1), one side of processing box (1) is installed with a plurality of groups of first electric push rod (3) in turn equally spaced, the other side is installed with a plurality of groups of servo motor (4) in turn equally spaced, the output shaft end of first electric push rod (3) and servo motor (4) is installed with the clamping assembly for fixed metal pipeline respectively in processing box (1), the clamping assembly is rotatably connected with the output shaft end of first electric push rod (3), and is fixedly connected with the output shaft end of servo motor (4), the upper portion of processing box (1) is fixedly provided with rack (5), rack (5) is opened with a plurality of groups of through -hole (6) in turn equally spaced, through -hole (6) is installed with electric slide rail inside, a plurality of electric sliding blocks (7) are slidably installed in electric slide rail, second electric push rod (8) is installed on the top of electric sliding block (7), and the output shaft end of second electric push rod (8) is installed with fixed seat (9), and heating ring (10) is slidably installed on fixed seat (9) symmetrically, and electric heating plate (11) is installed in heating ring (10).

2. A weld heat treatment assist tooling according to claim 1, wherein: The clamping assembly includes the fixed cylinder (13) rotatably installed at the output shaft end of first electric push rod (3), the first arc-shaped clamping block (12) fixedly installed in the lower portion of fixed cylinder (13) and the second arc-shaped clamping block (15) movably installed in the upper portion of fixed cylinder (13), the top of fixed cylinder (13) is provided with a threaded hole, and the threaded hole is threadedly connected with a screw rod (14), and the top of second arc-shaped clamping block (15) is connected with screw rod (14).

3. A weld heat treatment assist tooling according to claim 2, wherein: The electric sliding block (7) adopts a "T" type structure.

4. A weld heat treatment assist tooling according to claim 3, wherein: The outer side of the processing box (1) is provided with a heat preservation sealing door.

5. A weld heat treatment assist tooling according to claim 4, wherein: The fixed seat (9) is provided with a sliding groove, a bidirectional screw rod (16) is rotatably installed in the sliding groove, movable blocks (17) are screw transmission installed at both ends of the bidirectional screw rod (16), the movable blocks (17) are slidably installed in the sliding groove, and the top end of the heating ring (10) is fixedly connected with the movable blocks (17).

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