Special tool for welding heat exchanger tube box

Abstract

The utility model discloses a special tool for welding a heat exchanger tube box, which relates to the technical field of heat exchanger tube box welding and comprises a track, a support frame arranged above the track, track wheels arranged below the support frame, support wheels distributed above the support frame, a motor and a commutator arranged on the side of the support frame, and a lifting part arranged in front of the support frame. Adjusting mechanisms are arranged below the supporting wheel on the right side and below the lifting part. The pipe box welding tool can adapt to welding of pipe boxes of different lengths or specifications, the lower portion of the movable block is connected with the lifting base through the sliding block and the sliding rail, the stability of the tool in the working process is guaranteed, the abutting wheels are arranged to limit a workpiece, deviation in the welding process is prevented, the welding quality is further improved, and the working efficiency is improved. The motor and the commutator provide power for the supporting wheel, so that rotation and welding of the workpiece become simple and efficient. Meanwhile, a crank of the adjusting mechanism enables the adjusting process to be more convenient and easier.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange tube boxes, in particular to a special tool for welding a heat exchanger tube box. Background Art

[0002] The heat exchanger tube box is an important component of the shell and tube heat exchanger. Its function is to evenly distribute the fluid entering the tube side of the heat exchanger to each heat exchange tube, and collect the fluid after it leaves the heat exchange tube and lead it out of the heat exchanger. The structural design of the tube box has an important impact on the overall performance and reliability of the heat exchanger. At present, the welding of the outer cover of the tube box is to weld two tube boxes or outer covers back to back, and then weld the ring of the tube box or outer cover. Technical personnel in this field need to use patented support tooling for welding to improve efficiency and quality. Similar structures such as the authorized patent CN202322645854.2, a stainless steel tank leg welding positioning tooling, use roller support, but there will be a reducer in the middle of the tube box, and they will lean against each other. The length and diameter of the model will change according to the customization. Therefore, it is necessary to design a special tooling in combination with the above problems. Utility Model Content

[0003] The utility model aims to provide a special tool for welding a heat exchanger tube box to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a special tooling for welding a heat exchanger tube box, comprising a track, a support frame is provided above the track, a track wheel is provided below the support frame, support wheels are distributed above the support frame, a motor and a commutator are provided on the side of the support frame, the motor and the commutator provide power to the support wheels on both sides, a lifting part is provided in front of the support frame, the lifting part includes a lifting base and a scissors frame, and adjustment mechanisms are provided below the support wheel on the right and below the lifting part.

[0005] Furthermore: the lifting base is fixedly connected to the top of the front end adjustment mechanism, a bidirectional screw is provided on the lifting base, moving blocks are provided on both sides of the bottom of the scissor frame, and the bidirectional screw is connected to the moving block through threads.

[0006] Preferably, the scissor-type frame is X-shaped, rollers are provided on the top of the scissor-type frame, a stabilizing guide rail is provided on the bottom of the lifting base, and the bottom of the moving block is interconnected with the lifting base through a slider rail.

[0007] Preferably, a limiting block is provided on the track for limiting the track wheel of the support frame, and a supporting wheel is provided at the rear of the support frame.

[0008] Further: the adjustment mechanism includes an adjustment seat and an adjustment screw, the adjustment seat is sleeved on the crossbeam of the support frame, the adjustment screw is threaded through the adjustment seat, the neck of the adjustment screw is arranged on the support frame, and a crank is arranged on the outside of the adjustment screw.

[0009] Preferably: the main body of the motor is fixedly connected to the support frame, the output end of the motor is interconnected with the output end of the commutator, both sides of the commutator are interconnected with the support wheel through a transmission shaft, and a coupling is provided in the middle of the transmission shaft.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the utility model can adapt to the welding of pipe boxes of different lengths or specifications, the lower part of the moving block is interconnected with the lifting base through the slider rail, which ensures the stability of the tooling during the working process, and the top wheel can limit the workpiece to prevent deviation during the welding process, further improving the welding quality, and the motor and commutator provide power to the support wheel, making the rotation and welding of the workpiece simple and efficient. At the same time, the crank of the adjustment mechanism makes the adjustment process more convenient and easy. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 It is the front view of the utility model;

[0013] Figure 3 It is a schematic diagram of AA section view;

[0014] Figure 4 It is a top view of the utility model;

[0015] Figure 5 It is the state diagram of the utility model;

[0016] Figure 6 This is an enlarged schematic diagram of point B;

[0017] Figure 7 This is a working diagram of the utility model.

[0018] In the figure: 1. track, 2. support frame, 3. support wheel, 4. motor, 5. commutator, 6. lifting part, 7. adjustment mechanism, 8. support wheel, 9. transmission shaft, 10. coupling, 11. limit block, 12. stabilizing guide rail, 13. workpiece, 61. lifting base, 62. scissors frame, 63. roller, 64. moving block, 65. bidirectional screw, 71. adjustment seat, 72. adjustment screw, 73. crank. DETAILED DESCRIPTION

[0019] The present invention will be described below based on the embodiments in conjunction with the accompanying drawings in the embodiments of the present invention. However, it is worth noting that the present invention is not limited to these embodiments. In the detailed description of the present invention below, some specific details are described in detail. However, for the parts that are not described in detail, those skilled in the art can also fully understand the present invention.

[0020] In addition, those skilled in the art should understand that the drawings are only provided to illustrate the purpose, features and advantages of the present invention, and the drawings are not actually drawn according to scale.

[0021] At the same time, unless the context clearly requires otherwise, the words "include", "comprises" and similar words throughout the specification and claims should be interpreted as inclusive rather than exclusive or exhaustive; that is, the meaning is "including but not limited to".

[0022] See also Figure 1-Figure 7 The utility model provides a technical solution: it includes a track 1, a support frame 2 is provided above the track 1, a track wheel is provided below the support frame 2, support wheels 3 are distributed above the support frame 2, a motor 4 and a commutator 5 are provided on the side of the support frame 2, the motor and the commutator 5 provide power to the support wheels 3 on both sides, a lifting part 6 is provided in front of the support frame 2, the lifting part 6 includes a lifting base 61 and a scissor frame 62, and an adjustment mechanism 7 is provided below the right support wheel 3 and below the lifting part 6.

[0023] The lifting base 61 is fixedly connected above the front end adjustment mechanism 7, and a bidirectional screw 65 is provided on the lifting base 61. Moving blocks 64 are provided on both sides below the scissor frame 62, and the bidirectional screw 65 is connected to the moving block 64 through threads.

[0024] The scissor frame 62 is X-shaped, a roller 63 is provided on the top of the scissor frame 62, a stabilizing guide rail 12 is provided on the bottom of the lifting base 61, and the bottom of the moving block 64 is interconnected with the lifting base 61 through a slider rail.

[0025] The track 1 is provided with a limit block 11 for limiting the track wheel of the support frame 2 , and the rear of the support frame 2 is provided with a support wheel 8 .

[0026] The adjustment mechanism 7 includes an adjustment seat 71 and an adjustment screw 72. The adjustment seat 71 is sleeved on the crossbeam of the support frame 2. The adjustment screw 72 is threaded on the adjustment seat 71. The neck of the adjustment screw 72 is set on the support frame 2. A crank 73 is provided on the outside of the adjustment screw 72.

[0027] The main body of the motor 4 is fixedly connected to the support frame 2 , the output end of the motor 4 is interconnected with the output end of the commutator 5 , both sides of the commutator 5 are interconnected with the support wheel 3 through the transmission shaft 9 , and a coupling 10 is provided in the middle of the transmission shaft 9 .

[0028] When using this utility model, if the attached Figure 7 As shown, the workpiece 13 is divided into three parts and needs to be welded in three sections. Therefore, two sets of the support frames 2 of the present invention are required. The position is adjusted first according to the actual situation, and the support frame 2 is locked by the limit block 11. The rail caliper known in the market can also be used. Then, the wide spacing between the support wheels 3 is adjusted by the adjustment mechanism 7, and the height of the scissor frame 62 is adjusted by the bidirectional screw 65 to adapt to the middle section of the workpiece 13. The two ends of the workpiece 13 are limited by the top wheel 8, and finally the motor 5 is started for rotation welding. The existing welding equipment is used for submerged arc welding or other welding methods, and the slow rotation welding is performed to achieve the purpose of group welding. The overall structure can adapt to the welding of pipe boxes of different lengths or specifications. The operation is simple and the structure is compact.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A special tool for welding a heat exchanger tube box, characterized in that: The invention comprises a track (1), a support frame (2) is arranged above the track (1), a track wheel is arranged below the support frame (2), support wheels (3) are distributed above the support frame (2), a motor (4) and a commutator (5) are arranged on the side of the support frame (2), the motor and the commutator (5) provide power to the support wheels (3) on both sides, a lifting part (6) is arranged in front of the support frame (2), the lifting part (6) comprises a lifting base (61) and a scissor frame (62), and an adjustment mechanism (7) is arranged below the right support wheel (3) and below the lifting part (6).

2. A heat exchanger tube box welding tool according to claim 1, characterized in that: The lifting base (61) is fixedly connected to the upper part of the front end adjustment mechanism (7), and a bidirectional screw (65) is provided on the lifting base (61). Moving blocks (64) are provided on both sides below the scissor frame (62), and the bidirectional screw (65) is connected to the moving block (64) through threads.

3. A heat exchanger tube box welding tool according to claim 2, characterized in that: The scissor-type frame (62) is X-shaped, a roller (63) is provided above the scissor-type frame (62), a stabilizing guide rail (12) is provided below the lifting base (61), and the bottom of the moving block (64) is interconnected with the lifting base (61) via a slider rail.

4. The special tooling for welding heat exchanger tube box according to claim 1, characterized in that: The track (1) is provided with a limit block (11) for limiting the track wheel of the support frame (2), and a support wheel (8) is provided at the rear of the support frame (2).

5. The special tooling for welding heat exchanger tube box according to claim 1, characterized in that: The adjusting mechanism (7) comprises an adjusting seat (71) and an adjusting screw (72); the adjusting seat (71) is sleeved on a crossbeam of a supporting frame (2); the adjusting screw (72) is threadedly inserted into the adjusting seat (71); the neck of the adjusting screw (72) is arranged on the supporting frame (2); and a crank (73) is arranged outside the adjusting screw (72).

6. The special tooling for welding heat exchanger tube box according to claim 1, characterized in that: The main body of the motor (4) is fixedly connected to the support frame (2), the output end of the motor (4) is interconnected with the output end of the commutator (5), the two sides of the commutator (5) are interconnected with the support wheel (3) through a transmission shaft (9), and a coupling (10) is provided in the middle of the transmission shaft (9).

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