Welding clamping mechanism for heat exchanger

Abstract

The utility model relates to the technical field of heat exchanger machining, in particular to a heat exchanger welding and clamping mechanism which comprises a concave-character-shaped supporting frame, a reference seat fixedly connected to the upper end wall of the center of the supporting frame and used for placing heat exchanger welding accessories, upper fixing structures installed at the tops of the left end and the right end of the supporting frame, and a lower fixing structure installed at the top of the right end of the supporting frame. Penetrating openings are formed in the left end wall and the right end wall of the supporting frame in a penetrating mode, flat fixing structures are installed in the penetrating openings, sliding blocks are installed at the lower ends of the flat fixing structures, and sliding groove openings movably connected with the sliding blocks are formed in the positions, close to the end walls of the sliding blocks, of the supporting frame. The large-caliber end of the abutting disc is connected with the vertical screw, or the small-caliber end of the abutting disc is connected with the vertical screw, the large-caliber end face and the small-caliber end face of the abutting disc can be switched for use, the abutting disc is used for adapting to straight end faces of different calibers of different heat exchangers, and adaptability is higher during use.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger processing technology, and in particular to a heat exchanger welding clamping mechanism. Background Technology

[0002] A heat exchanger is a device that transfers part of the heat from a hot fluid to a cold fluid. It is also called a heat exchanger. Heat exchangers play an important role in chemical, petroleum, power, food and many other industrial productions. When heat exchanger parts are assembled, they are welded together. During the welding process, the parts are clamped and limited. This clamping mechanism is used to clamp and limit the welding of heat exchanger parts.

[0003] There are many types and sizes of heat exchanger parts, which means that different sizes of clamping structures are needed to fit the heat exchanger during clamping and limiting. Furthermore, during welding, the angle and position of the end walls of the heat exchanger parts need to be changed to fit the welding equipment. Ordinary clamping mechanisms have simple structures and cannot flexibly change their own structural position to fit the heat exchanger parts in different angles and positions. Utility Model Content

[0004] The purpose of this invention is to provide a heat exchanger welding clamping mechanism.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A heat exchanger welding clamping mechanism includes a concave-shaped support frame, a reference seat for placing heat exchanger welding accessories fixed to the upper wall of the center of the support frame, upper fixed structures installed at the top of both the left and right ends of the support frame, through openings provided at both the left and right end walls of the support frame, a leveling structure installed in the through opening, a slider installed at the lower end of the leveling structure, and a sliding groove opening provided near the end wall of the slider of the support frame for movable connection with the slider.

[0007] Preferably, the upper fixing structure includes a rotating shaft provided at the upper end of the left and right sides of the support frame, an L-shaped top seat installed at the upper end of the rotating shaft, and a vertical screw rod inserted vertically through the end wall of the top seat.

[0008] Preferably, the top seat is rotatably connected to the support frame via a rotating shaft, and the top seat and the vertical screw are threadedly connected, with two of each of the top seat, vertical screw, and rotating shaft.

[0009] Preferably, the leveling structure includes an inner slide block rotatably connected to the upper end of the slider inside the opening, and a flat screw rod that is horizontally threaded through the center of the inner slide block.

[0010] Preferably, the top of the slider is L-shaped, and the L-shaped end wall of the slider is vertically and horizontally threaded with screws for tightening the limiting slider.

[0011] Preferably, a threaded rod with a smaller diameter than the flat screw and vertical screw is fixed to the end of each of the two screws. A backing plate with a smaller diameter at the top and a larger diameter at the bottom is installed on the end of the threaded rod. The backing plate has a hole in the center for threaded connection with the threaded rod.

[0012] This utility model has at least the following beneficial effects:

[0013] 1. The design of the top seat, vertical screw, and rotating shaft facilitates flexible adjustment of the positioning structure above the structure. The rotating shaft is used to rotate the top seat. When the top seat is rotated to the side of the reference seat, it is used for positioning. When the top seat is rotated to the outside of the support frame, the upper part of the support frame is freed up, making it convenient for welding equipment to enter the inner side of the support frame from the upper part of the support frame for welding of heat exchanger accessories. It also makes it convenient to retrieve and store heat exchanger accessories, making operation and use more flexible.

[0014] 2. The large-diameter end of the abutment plate is connected to the vertical screw, or the small-diameter end is connected to the vertical screw, allowing the abutment plate to be used in both large and small diameters to adapt to the flat end faces of different heat exchangers with different diameters, thus making it more adaptable to use. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the present invention;

[0017] Figure 2 for Figure 1 A schematic diagram of the groove opening and the slider;

[0018] Figure 3 for Figure 1 A top view of the chute opening;

[0019] Figure 4 for Figure 1 A schematic diagram of the screw and the hole.

[0020] In the diagram: 1. Support frame; 2. Reference seat; 3. Rotating shaft; 4. Top seat; 5. Vertical screw; 6. Slide groove; 7. Through hole; 8. Inner slide seat; 9. Flat screw; 10. Slider; 11. Threaded rod; 12. Abutment plate; 13. Plate hole; 14. Screw. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] Please see Figures 1-4 This utility model provides a technical solution for a heat exchanger welding clamping mechanism:

[0023] like Figures 1-4 As shown, a heat exchanger welding clamping mechanism includes a concave-shaped support frame 1, a reference seat 2 for placing heat exchanger welding accessories fixed to the upper wall of the center of the support frame 1, upper fixing structures installed at the top of both the left and right ends of the support frame 1, and through holes 7 provided at both the left and right end walls of the support frame 1. A flat fixing structure is installed in the through hole 7. During heat exchanger welding, the heat exchanger accessories are placed on the reference seat 2 and stacked. Then, the flat fixing structure limits the lateral position of the accessories, and the upper fixing structure limits the vertical position of the accessories. After the accessories are stably limited, welding assembly is performed.

[0024] A slider 10 is installed at the lower end of the flat structure. A groove 6 is provided near the end wall of the slider 10 and is movably connected to the slider 10. The slider 10 slides in the groove 6. When it is displaced, the slider 10 drives the flat structure to move, so as to adjust the position of the flat structure and adapt to the side wall of heat exchanger accessories of different sizes. The top of the slider 10 is L-shaped. The L-shaped end wall of the slider 10 is vertically and horizontally threaded with screws 14 for tightening the limiting slider 10.

[0025] The upper structure includes a rotating shaft 3 set at the upper end of the left and right sides of the support frame 1, an L-shaped top seat 4 installed at the upper end of the rotating shaft 3, and a vertical screw 5 vertically inserted through the end wall of the top seat 4. The top seat 4 is rotatably connected to the support frame 1 through the rotating shaft 3. At the same time, the top seat 4 and the vertical screw 5 are threadedly connected. When the vertical screw 5 rotates, it moves up and down under the threaded transmission. After moving down, it limits the top wall of the heat exchanger accessory. There are two top seats 4, two vertical screws 5, and two rotating shafts 3. The rotating shaft 3 is used to rotate the top seat 4. When the top seat 4 rotates to the side of the reference seat 2, it is used for positioning. When the top seat 4 rotates to the outside of the support frame 1, it frees up the upper area of ​​the support frame 1, making it convenient for welding equipment to enter the inside of the support frame 1 from the upper end of the support frame 1 for welding the heat exchanger accessory. It also makes it convenient to retrieve and store the heat exchanger accessory, making operation and use more flexible.

[0026] The leveling structure includes an inner slide 8 rotatably connected to the upper end of the slider 10 inside the through 7, so that the inner slide 8 can rotate and switch the orientation of the inner slide 8 and the threaded flat screw 9, so that the flat screw 9 can be adapted to the tilted heat exchanger accessories. When the heat exchanger is placed, the angle is controllable and adjustable, and the flexibility is higher. The flat screw 9 is horizontally passed through the center of the inner slide 8 and threadedly connected to the center. When the flat screw 9 rotates, it moves horizontally and limits the position at the side wall of the heat exchanger.

[0027] In particular, both the flat screw 9 and the vertical screw 5 have screw bars 11 with a diameter smaller than that of the flat screw 9 and the vertical screw 5 fixed to their ends. A retaining plate 12 with a smaller diameter at the top and a larger diameter at the bottom is installed on the end side of the screw bar 11. A disc hole 13 for threaded connection with the screw bar 11 is provided in the center of the retaining plate 12. When the retaining plate 12 rotates, the screw bar 11 and the disc hole 13 are assembled together. When assembled, the retaining plate 12 moves with the vertical screw 5 and presses against the end wall of the heat exchanger accessory, thus pressing and limiting the heat exchanger accessory. At the same time, the larger diameter end of the retaining plate 12 is assembled with the vertical screw 5, or the smaller diameter end is assembled with the vertical screw 5, so that the large and small diameter end faces of the retaining plate 12 can be used interchangeably to adapt to the flat end faces of different diameters of different heat exchangers, making it more adaptable in use.

[0028] Working principle:

[0029] When in use, place the heat exchanger accessories on the reference seat 2 of the support frame 1, rotate the top seat 4 on the top shaft 3 of the support frame 1, and switch the position of the top seat 4. When in use, the top seat 4 is switched to the inner area of ​​the support frame 1. Then, turn the vertical screw 5 and the vertical screw 5 moves down to vertically press and limit the heat exchanger accessories. When idle, when picking up materials, or when the upper end needs to be emptied for welding, rotate the vertical top seat 4 and the vertical screw 5 to the outer side of the support frame 1. Switching is convenient when in use.

[0030] The inner slide 8 is installed inside the through 7 and its bottom is rotatably connected to the slider 10 which is movably connected to the slide groove 6. This allows the inner slide 8 to slide and move within the through 7, and also to rotate. This allows the position and orientation of the flat screw 9 at the end wall of the inner slide 8, which is used to limit the heat exchanger accessories, to be switched. When the heat exchanger accessories are not placed in the upright position and the end wall is tilted relative to the side wall of the support frame 1, the flat screw 9 can be adjusted and switched to match the end wall of the heat exchanger accessories. This results in a higher degree of compatibility and also facilitates the convenient turning of the heat exchanger accessories. After the end face is switched, it is more flexible and convenient to match the welding equipment, and it is convenient to clamp and weld after the welding process.

[0031] Finally, at the ends of the vertical screw 5 and the flat screw 9, a screw rod 11 is fixedly connected to the disc hole 13. The screw rod 11 is detached and assembled with the abutment plate 12 through the disc hole 13. The two ends of the abutment plate 12 have different diameters, which makes it convenient to switch the diameter end face and contact the flat end face of heat exchanger accessories of different sizes for adaptation and positioning.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A heat exchanger welding clamping mechanism, comprising a concave-shaped support frame (1), characterized in that, A reference base (2) for placing heat exchanger welding accessories is fixed to the upper wall of the center of the support frame (1). The top of both the left and right ends of the support frame (1) is equipped with an upper fixing structure. Both the left and right end walls of the support frame (1) are provided with through holes (7). A leveling structure is installed in the through hole (7). A slider (10) is installed at the lower end of the leveling structure. A sliding groove (6) is opened on the end wall of the support frame (1) near the slider (10) and is movably connected to the slider (10).

2. The heat exchanger welding clamping mechanism according to claim 1, characterized in that, The upper structure includes a rotating shaft (3) set at the upper end of the left and right sides of the support frame (1), an L-shaped top seat (4) installed at the upper end of the rotating shaft (3), and a vertical screw (5) inserted vertically through the end wall of the top seat (4).

3. The heat exchanger welding clamping mechanism according to claim 2, characterized in that, The top seat (4) is rotatably connected to the support frame (1) via a rotating shaft (3). At the same time, the top seat (4) and the vertical screw (5) are threadedly connected, and there are two of each of the top seat (4), vertical screw (5), and rotating shaft (3).

4. The heat exchanger welding clamping mechanism according to claim 3, characterized in that, The leveling structure includes an inner slide (8) rotatably connected to the upper end of the slider (10) inside the opening (7), and a flat screw (9) that is horizontally passed through the center of the inner slide (8) and threadedly connected to it.

5. A heat exchanger welding clamping mechanism according to claim 4, characterized in that, The top of the slider (10) is L-shaped, and the screw (14) for tightening the limiting slider (10) is vertically and horizontally threaded to the L-shaped end wall of the slider (10).

6. The heat exchanger welding clamping mechanism according to claim 5, characterized in that, At the ends of the flat screw (9) and the vertical screw (5), a threaded rod (11) with a diameter smaller than that of the flat screw (9) and the vertical screw (5) is fixedly connected. A backing plate (12) with a smaller diameter at the top and a larger diameter at the bottom is installed on the end side of the threaded rod (11). A disc hole (13) for threaded connection with the threaded rod (11) is provided in the center of the backing plate (12).

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