Clamping device for welding heat exchanger

Abstract

The utility model discloses a clamping device for welding a heat exchanger, and relates to the technical field of heat exchanger welding. The clamping device for welding the heat exchanger comprises a base, and a movable block is slidably connected to the base; the heat exchanger clamping assembly comprises a heat exchanger containing frame, and the right end of the heat exchanger containing frame is fixedly connected with a second driving motor. A two-way threaded rod is rotationally connected into the heat exchanger containing frame, a second limiting rod is fixedly connected into the heat exchanger containing frame, a heat exchanger containing block is fixedly connected to the inner wall of the heat exchanger containing frame, and the surface of the two-way threaded rod is sleeved with a heat exchanger clamping plate in a threaded mode. Through the use of the heat exchanger placing block and the rotating disc, a pipe fitting or a plate fitting of a heat exchanger can be conveniently fixed and clamped, the practicability of the device is improved, different heat exchanger parts can be conveniently fixed and welded, the angle of the plate fitting or the pipe fitting can be conveniently changed, and the plate fitting or the pipe fitting can be conveniently welded at different angles; and therefore, the welding precision and quality are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat exchanger welding technical field especially relates to a clamping device for welding heat exchanger. BACKGROUND

[0002] Heat exchanger (also known as heat exchanger or heat exchange equipment) is used to pass heat from hot fluid to cold fluid to meet the specified process requirements, which is an industrial application of flow heat transfer and heat conduction. Heat exchanger can be classified in different ways. According to the operation process, it can be divided into three categories: barrier type, mixing type and regenerative type (recuperative type); according to the compactness of its surface, it can be divided into compact type and non compact type. Chinese utility model patent, authorization announcement number "CN210731489 U", discloses a welding fixture clamping structure, which comprises a support, an operating plate and a clamp. The top of the support is provided with the operating plate, and the top of the operating plate is provided with the clamp. The inner cavity of the clamp is provided with a first rotating shaft. The outer side wall of the first rotating shaft is provided with a clamping piece. The left side wall of the inner cavity of the clamp is provided with a groove. One end of the inner cavity of the groove is provided with a spring. The other end of the spring is fixedly connected with the left side wall of the clamping piece. The right side wall of the clamping piece is provided with a limiting block.

[0003] The above technical scheme uses L-shaped clamping piece. When the screw rod rotates and pushes the clamping piece to rotate around the first rotating shaft, the clamping piece can clamp the workpiece to be welded by using the lever principle. The clamping of the workpiece is tight, which avoids size error and loosening of the workpiece to be welded, and affects the welding effect of the workpiece. The utility model is practical, suitable for wide promotion and use. However, the above technical scheme still has some defects. The clamping device only fixes one side plate of the heat exchanger, cannot fix and weld different parts, and cannot move the fixed parts flexibly after fixing, which is not convenient for welding different parts and greatly reduces the practicability of the device. If the welding is not in place, the quality of the product will be affected. Therefore, the utility model provides a new solution. UTILITY MODEL CONTENT

[0004] The utility model aims at least to solve one of the technical problems in the prior art, and provides a clamping device for welding heat exchanger, which can solve the problem that the clamping device only fixes one side plate of the heat exchanger, cannot fix and weld different parts, and cannot move the fixed parts flexibly after fixing, which is not convenient for welding different parts and greatly reduces the practicability of the device. If the welding is not in place, the quality of the product will be affected.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a clamping device for welding heat exchanger, comprising a base, a movable block is slidably connected on the base;

[0006] The heat exchanger clamping assembly is arranged on the movable block, and comprises a heat exchanger placing rack, the heat exchanger placing rack is rotationally connected to the movable block, and the right end of the heat exchanger placing rack is fixedly connected with a second driving motor;

[0007] A bidirectional threaded rod is rotationally connected to the inside of the heat exchanger placing rack, a second limiting rod is fixedly connected to the inside of the heat exchanger placing rack, the output end of the second driving motor is fixedly connected with the bidirectional threaded rod, the inner wall of the heat exchanger placing rack is fixedly connected with a heat exchanger placing block, and the upper end of the heat exchanger placing block is in a V shape;

[0008] A heat exchanger clamping plate is threadedly sleeved on the surface of the bidirectional threaded rod, and the heat exchanger clamping plate is slidably connected with the second limiting rod.

[0009] Preferably, the heat exchanger clamping assembly further comprises a rotating disc, the rotating disc is rotationally connected to the heat exchanger clamping plate, the movable block is in a convex shape, a telescopic rod is hingedly connected to the surface of the movable block, and the output end of the telescopic rod is rotationally connected to the bottom of the heat exchanger placing rack.

[0010] Preferably, the number of the heat exchanger clamping plate and the rotating disc is two, and the heat exchanger clamping plate and the rotating disc are symmetrically arranged on the left and right sides of the heat exchanger placing rack;

[0011] The surface of the heat exchanger clamping plate on the right side is fixedly connected with a third driving motor, and the output end of the third driving motor is fixedly connected with the corresponding rotating disc.

[0012] Preferably, the number of the telescopic rod is two, and the telescopic rod is symmetrically arranged on the left and right sides of the movable block.

[0013] Preferably, a rotating shaft is rotationally connected to the inside of the movable block, limiting blocks are fixedly connected to the front and rear ends of the rotating shaft, and the two limiting blocks are fixedly connected with the heat exchanger placing rack.

[0014] Preferably, two fixed supports are fixedly connected to the base, first threaded rods are rotationally connected to the opposite surfaces of the two fixed supports, and first limiting rods are fixedly connected to the opposite surfaces of the two fixed supports.

[0015] The movable block is threadedly sleeved on the surface of the first threaded rod, the movable block is slidably connected with the first limiting rod, the surface of the fixed support on the left side is fixedly connected with a first driving motor, and the output end of the first driving motor is fixedly connected with the first threaded rod.

[0016] Compared with the prior art, the welding heat exchanger clamping device has the advantages that the heat exchanger placing block and the rotating disc are used, so that the pipe fittings or plate fittings of the heat exchanger can be fixed and clamped, the practicability of the device is improved, different heat exchanger parts can be fixed and welded, the heat exchanger placing frame is rotated on the movable block, the angle of the plate fitting or the pipe fitting can be changed, the plate fitting or the pipe fitting can be welded at different angles, the welding precision and quality are improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model is further illustrated below in combination with the drawings and embodiments:

[0018] Figure 1 It is a welding heat exchanger clamping device structural diagram of the utility model;

[0019] Figure 2 It is a limiting block diagram of the utility model;

[0020] Figure 3 It is a telescopic rod diagram of the utility model;

[0021] Figure 4 It is a heat exchanger placing block diagram of the utility model.

[0022] Reference signs: 1, base, 2, fixed support, 3, first drive motor, 4, first threaded rod, 5, first limiting rod, 6, movable block, 7, rotating shaft, 8, limiting block, 9, heat exchanger placing frame, 10, telescopic rod, 11, second drive motor, 12, bidirectional threaded rod, 13, second limiting rod, 14, heat exchanger placing block, 15, heat exchanger clamping plate, 16, third drive motor, 17, rotating disc. DETAILED DESCRIPTION

[0023] This part will describe the specific embodiments of the utility model in detail, the preferred embodiments of the utility model are shown in the drawings, the drawings are used to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0024] In the description of the utility model, it needs to be understood that, when the direction is described, for example, the direction or position relation of the indication such as upper, lower, front, back, left, right is the direction or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as the limitation of the utility model. In the description of the utility model, greater than, less than, more than and the like are understood as not including the number, and the above, below and the like are understood as including the number. If it is described to the first, second, it is only used for distinguishing the technical features for the purpose, and therefore cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the sequence of the indicated technical features. In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installing and connecting should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0025] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a kind of clamping device for welding heat exchanger, including base 1, movable block 6 is slidably connected on base 1, heat exchanger clamping assembly, heat exchanger clamping assembly is arranged on movable block 6, heat exchanger clamping assembly includes heat exchanger placing rack 9, heat exchanger placing rack 9 is rotatably connected in movable block 6, the right end of heat exchanger placing rack 9 is fixedly connected with second drive motor 11, bidirectional screw rod 12 is rotatably connected in the inside of heat exchanger placing rack 9, second limit rod 13 is fixedly connected in the inside of heat exchanger placing rack 9, the output of second drive motor 11 is fixedly connected with bidirectional screw rod 12, the inner wall of heat exchanger placing rack 9 is fixedly connected with heat exchanger placing block 14, the upper end of heat exchanger placing block 14 is in the shape of 'V', heat exchanger clamping plate 15 is threadedly sleeved on the surface of bidirectional screw rod 12, heat exchanger clamping plate 15 is slidably connected with second limit rod 13.

[0026] Heat exchanger clamping assembly further includes turntable 17, turntable 17 is rotatably connected on heat exchanger clamping plate 15, movable block 6 is in the shape of 'convex', and the surface of movable block 6 is hinged with telescopic rod 10, and the output of telescopic rod 10 is rotatably connected with the bottom of heat exchanger placing rack 9.

[0027] The number of heat exchanger clamping plate 15 and turntable 17 is two, and is symmetrically arranged on the left and right sides of heat exchanger placing rack 9, respectively, the surface of the right heat exchanger clamping plate 15 is fixedly connected with third drive motor 16, and the output of third drive motor 16 is fixedly connected with corresponding turntable 17, and the number of telescopic rod 10 is two, and is symmetrically arranged on the left and right sides of movable block 6.

[0028] The inner part of the movable block 6 is rotationally connected with a rotating shaft 7, the front and rear ends of the rotating shaft 7 are fixedly connected with limiting blocks 8, and the two limiting blocks 8 are fixedly connected with a heat exchanger placing rack 9.

[0029] The base 1 is fixedly connected with two fixed supports 2, the opposite surfaces of the two fixed supports 2 are rotationally connected with first threaded rods 4, the opposite surfaces of the two fixed supports 2 are fixedly connected with first limiting rods 5, the movable block 6 is threadedly sleeved on the surface of the first threaded rod 4, the movable block 6 is slidably connected with the first limiting rod 5, the surface of the left fixed support 2 is fixedly connected with a first driving motor 3, and the output end of the first driving motor 3 is fixedly connected with the first threaded rod 4.

[0030] When the device is used, first, the heat exchanger pipe or plate to be welded is placed on the heat exchanger placing block 14, when the pipe of the heat exchanger needs to be welded, the pipe is placed on the heat exchanger placing block 14, then the second driving motor 11 is started to drive the bidirectional threaded rod 12 to rotate, the bidirectional threaded rod 12 drives the two heat exchanger clamping plates 15 to move close to each other, the heat exchanger clamping plates 15 slide on the surface of the second limiting rod 13, the heat exchanger clamping plates 15 drive the third driving motor 16 and the rotating disc 17 to move, so that the rotating disc 17 contacts the pipe, and the pipe is fixed, the third driving motor 16 is started to drive the rotating disc 17 to rotate, and the rotating disc 17 drives the pipe to rotate, so that the pipe is welded.

[0031] When the plate of the heat exchanger needs to be welded, the plate is placed on the heat exchanger placing block 14, then the second driving motor 11 is started to drive the bidirectional threaded rod 12 to rotate, the bidirectional threaded rod 12 drives the two heat exchanger clamping plates 15 to move close to each other, the heat exchanger clamping plates 15 slide on the surface of the second limiting rod 13, the heat exchanger clamping plates 15 drive the third driving motor 16 and the rotating disc 17 to move, so that the rotating disc 17 contacts the plate, the plate is fixed, and the plate is welded.

[0032] Then the first driving motor 3 is started to drive the first threaded rod 4 to rotate, the first threaded rod 4 drives the movable block 6 to slide on the surface of the first limiting rod 5, so that the movable block 6 is moved, and the plate or the pipe is moved to the vicinity of the welding machine, when the pipe or the plate needs to be welded at different angles, the telescopic rod 10 is started to drive the heat exchanger placing rack 9 to rotate, the heat exchanger placing rack 9 drives the plate or the pipe to rotate, so that the angle of the plate or the pipe is changed, the plate or the pipe is welded at different angles, the welding precision and quality are improved, and each component of the heat exchanger is in the best alignment state during welding.

[0033] Through the use of the two limiting blocks 8, the heat exchanger placing rack 9 can be kept stable during rotation, the stability of clamping the heat exchanger is improved, and the welding quality is improved.

[0034] Further, through the use of the heat exchanger placement block 14 and the rotating disc 17, it is convenient to fix and clamp the tubes or plates of the heat exchanger, improve the practicability of the device, and facilitate the fixed welding of different heat exchanger parts. Meanwhile, through the rotation of the heat exchanger placement rack 9 on the movable block 6, it is convenient to change the angle of the plates or tubes, facilitate the welding of the plates or tubes at different angles, and ensure that each component of the heat exchanger is in the best alignment state during welding, thereby improving the precision and quality of welding.

[0035] Through the use of the two limiting blocks 8, it is convenient to keep stable during the rotation of the heat exchanger placement rack 9, improve the stability of clamping the heat exchanger, and improve the welding quality. The limiting block 8 can limit the movement range of the heat exchanger placement rack 9 during rotation, prevent it from deviating or shaking excessively, thereby ensuring the stability of clamping and improving the welding quality.

[0036] Working principle: when using the device, first place the heat exchanger tubes or plates to be welded on the heat exchanger placement block 14. When the tubes of the heat exchanger need to be welded, first place the tubes on the heat exchanger placement block 14, then start the second drive motor 11 to drive the bidirectional threaded rod 12 to rotate, the bidirectional threaded rod 12 drives the two heat exchanger clamps 15 to move towards each other, so that the heat exchanger clamps 15 slide on the surface of the second limiting rod 13, the heat exchanger clamps 15 drive the third drive motor 16 and the rotating disc 17 to move, so that the rotating disc 17 contacts the tubes, facilitating the fixation of the tubes, and starting the third drive motor 16 to drive the rotating disc 17 to rotate, the rotating disc 17 drives the tubes to rotate, facilitating the welding of the tubes. When the plates of the heat exchanger need to be welded, first place the plates on the heat exchanger placement block 14, then start the second drive motor 11 to drive the bidirectional threaded rod 12 to rotate, the bidirectional threaded rod 12 drives the two heat exchanger clamps 15 to move towards each other, so that the heat exchanger clamps 15 slide on the surface of the second limiting rod 13, the heat exchanger clamps 15 drive the third drive motor 16 and the rotating disc 17 to move, so that the rotating disc 17 contacts the plates, facilitating the fixation of the plates, and facilitating the welding of the plates.

[0037] Then start the first drive motor 3 to drive the first threaded rod 4 to rotate, the first threaded rod 4 drives the movable block 6 to slide on the surface of the first limiting rod 5, facilitating the movement of the movable block 6, and facilitating the movement of the plates or tubes to the vicinity of the welding machine. When the tubes or plates need to be welded at different angles, start the telescopic rod 10 to drive the heat exchanger placement rack 9 to rotate, the heat exchanger placement rack 9 drives the plates or tubes to rotate, facilitating the change of the angle of the plates or tubes, facilitating the welding of the plates or tubes at different angles, and ensuring that each component of the heat exchanger is in the best alignment state during welding, thereby improving the precision and quality of welding. Through the use of the two limiting blocks 8, it is convenient to keep stable during the rotation of the heat exchanger placement rack 9, improve the stability of clamping the heat exchanger, and improve the welding quality.

[0038] The utility model embodiment has been explained in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiment, still can make various changes in the knowledge range of ordinary skill in the art who has possessed under the premise of not departing from the utility model tenet.

Claims

1. A clamping device for welding heat exchangers, characterized in that: Includes a base (1), on which a movable block (6) is slidably connected; The heat exchanger clamping assembly is set on the movable block (6). The heat exchanger clamping assembly includes a heat exchanger placement rack (9), which is rotatably connected to the movable block (6). A second drive motor (11) is fixedly connected to the right end of the heat exchanger placement rack (9). The heat exchanger placement rack (9) is rotatably connected to a bidirectional threaded rod (12), and the heat exchanger placement rack (9) is fixedly connected to a second limiting rod (13). The output end of the second drive motor (11) is fixedly connected to the bidirectional threaded rod (12). The heat exchanger placement block (14) is fixedly connected to the inner wall of the heat exchanger placement rack (9). The upper end of the heat exchanger placement block (14) is V-shaped. The surface of the bidirectional threaded rod (12) is threaded with a heat exchanger clamp (15), and the heat exchanger clamp (15) is slidably connected to the second limiting rod (13).

2. The clamping device for welding heat exchangers according to claim 1, characterized in that: The heat exchanger clamping assembly also includes a turntable (17), which is rotatably connected to the heat exchanger clamping plate (15). The movable block (6) is convex in shape, and a telescopic rod (10) is hinged to the surface of the movable block (6). The output end of the telescopic rod (10) is rotatably connected to the bottom of the heat exchanger placement rack (9).

3. The clamping device for welding heat exchangers according to claim 2, characterized in that: There are two heat exchanger clamps (15) and turntables (17), which are symmetrically arranged on the left and right sides of the heat exchanger mounting frame (9); A third drive motor (16) is fixedly connected to the surface of the heat exchanger clamp (15) on the right side, and the output end of the third drive motor (16) is fixedly connected to the corresponding turntable (17).

4. The clamping device for welding heat exchangers according to claim 2, characterized in that: There are two telescopic rods (10), which are symmetrically arranged on the left and right sides of the movable block (6).

5. A clamping device for welding heat exchangers according to claim 1 or 3, characterized in that: The movable block (6) is internally connected to a rotating shaft (7), and the front and rear ends of the rotating shaft (7) are fixedly connected to limit blocks (8). Both limit blocks (8) are fixedly connected to the heat exchanger placement rack (9).

6. The clamping device for welding heat exchangers according to claim 1, characterized in that: Two fixed brackets (2) are fixedly connected to the base (1). A first threaded rod (4) is rotatably connected to the opposite surface of the two fixed brackets (2). A first limiting rod (5) is fixedly connected to the opposite surface of the two fixed brackets (2). The movable block (6) is threaded onto the surface of the first threaded rod (4). The movable block (6) is slidably connected to the first limiting rod (5). The surface of the fixed bracket (2) on the left side is fixedly connected to the first drive motor (3). The output end of the first drive motor (3) is fixedly connected to the first threaded rod (4).

Images