A welding tool structure for a heat exchanger shell

Abstract

The utility model discloses a kind of welding tool structure of heat exchanger shell, including base, the side fixed with locating seat in the top end of base, the top end of the base of locating seat side is equipped with two limit rails, the top of limit rail is slidably connected with rail seat, the top of two rail seats is installed with bearing table, electric push rod is installed on the inner wall of locating seat side, the outer wall of bearing table side is connected with the end of electric push rod away from locating seat, the center position of bearing table top is equipped with strip seat, strip seat top is fixedly installed with strip board, second electric cabinet is installed in the top of bearing table before strip seat, the top of strip board is installed with base frame, the side of base frame top is installed with first electric cabinet.The utility model not only improves the convenience of welding tool structure to heat exchanger shell workpiece welding, also ensures the stability of heat exchanger shell workpiece welding, and reaches the purpose of easily hoisting and transporting welding tool structure.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger manufacturing technology, specifically to a welding fixture structure for a heat exchanger shell. Background Technology

[0002] A heat exchanger is an energy-saving device that enables heat transfer between two or more fluids at different temperatures. It transfers heat from a higher-temperature fluid to a lower-temperature fluid, bringing the fluid temperature to the specified parameters to meet process requirements. It is also one of the main devices for improving energy efficiency. As an important component of the heat exchanger, the welding quality of the heat exchanger shell directly affects the overall performance and service life of the heat exchanger. Typically, the heat exchanger shell has a cylindrical structure. To ensure the welding effect of such heat exchanger shells, it is particularly important to develop a welding fixture structure for the heat exchanger shell.

[0003] A welding fixture structure for a heat exchanger shell, as described in reference announcement number CN218695474U, includes a base, a reference fixing seat, a movable positioning seat, an adjusting assembly, a clamping assembly, and a welding positioning template. The reference fixing seat is located at one end of the base, and the movable positioning seat is located at the other end. The clamping assembly is mounted on the movable positioning seat, which has a positioning boss. The welding positioning template is positioned above the reference fixing seat and has multiple positioning holes. The clamping assembly drives the positioning boss to move axially closer to or further away from the reference fixing seat. The device clamps both ends of the shell; by setting an adjustment component, it can adapt to clamping shells of different lengths; and a welding positioning template is set above the reference fixing seat to achieve the positioning of the medium inlet pipe and medium outlet pipe for welding. This can ensure the accuracy of the welding position, improve production efficiency and welding quality. As can be seen from the above, although this welding fixture structure can be well applied, it is usually not convenient to horizontally adjust the position of the heat exchanger shell workpiece. The welding equipment needs to be moved before welding operations can be carried out on the designated area of ​​the heat exchanger shell workpiece. There are still some inconveniences in use, and further improvements are needed. Utility Model Content

[0004] The purpose of this utility model is to provide a welding fixture structure for a heat exchanger shell, so as to solve the problem that although the welding fixture structure proposed in the background art can be well applied, it is usually not convenient to adjust the position of the heat exchanger shell workpiece horizontally. The welding equipment needs to be moved before the welding operation can be carried out on the designated area of ​​the heat exchanger shell workpiece, and there are still some inconveniences in the use process.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a welding fixture structure for a heat exchanger shell, comprising a base, a positioning seat fixed on one side of the top of the base, two limiting rails on the top of the base on one side of the positioning seat, each limiting rail being slidably connected to a rail seat, a bearing platform mounted on the top of the two rail seats, an electric push rod mounted on the inner wall of one side of the positioning seat, the end of the electric push rod away from the positioning seat being connected to the outer wall of one side of the bearing platform, a strip seat at the center of the top of the bearing platform, a strip plate fixedly mounted on the top of the strip seat, a second electrical control box mounted on the top of the bearing platform in front of the strip seat, the output end of the microcontroller inside the second electrical control box being electrically connected to the input end of the electric push rod, a base frame mounted on the top of the strip plate, and a first electrical control box mounted on one side of the top of the base frame.

[0006] Preferably, the top of the base frame on both sides of the first electrical control box is provided with a support frame, and the top of the support frame is equipped with a lower clamping plate. The lower clamping plate is provided to support and place the heat exchanger shell workpiece.

[0007] Preferably, a component holder is installed on the outer wall of one side of the support frame, and a lifting cylinder is installed on the outer wall of the component holder away from the lower clamping plate. The input end of the lifting cylinder is electrically connected to the output end of the microcontroller inside the first electrical control box. The lifting cylinder is configured to drive the upper clamping plate to perform lifting and lowering operations.

[0008] Preferably, a linkage seat is installed at the top of the lifting cylinder, and an upper clamping plate is installed at the end of the linkage seat away from the lifting cylinder. A heat exchanger shell workpiece is clamped and installed between the upper clamping plate and the lower clamping plate. The upper clamping plate is designed to cooperate with the lower clamping plate to clamp and fix the heat exchanger shell workpiece.

[0009] Preferably, side connecting plates are fixedly installed on the outer walls of both sides of the strip seat. The bottom end of the side connecting plate is connected to the top end of the support platform. The side connecting plates are provided to facilitate the placement of the lifting ring.

[0010] Preferably, lifting rings are installed on both sides of the top of the side connecting plate, and two reinforcing ribs are provided on the inner wall of the side connecting plate. The bottom end of the reinforcing ribs is fixedly connected to the top of the strip seat. The installation of several lifting rings allows for the hoisting and transportation of the entire welding fixture structure.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the welding fixture structure of the heat exchanger shell not only improves the convenience of welding the heat exchanger shell workpiece, but also ensures the stability of the heat exchanger shell workpiece during welding, and achieves the purpose of easy hoisting and transportation of the welding fixture structure.

[0012] (1) The carrier platform is driven to move horizontally by an electric push rod, so that the carrier platform moves the rail seat to slide on the top of the limit rail, so that the carrier platform moves the heat exchanger shell workpiece above it smoothly horizontally. The position of the heat exchanger shell workpiece can be adjusted horizontally, and the welding operation can be carried out on the designated area of ​​the heat exchanger shell workpiece without moving the welding equipment, thereby improving the convenience of welding tooling structure when welding heat exchanger shell workpiece.

[0013] (2) By placing both ends of the heat exchanger shell workpiece on the top of the lower clamping plate, and then starting the lifting cylinder, the upper clamping plate is driven to move downward through the linkage seat so that the upper clamping plate moves down to fit against the upper outer wall of the heat exchanger shell workpiece. This allows the upper clamping plate to cooperate with the lower clamping plate to clamp and fix the heat exchanger shell workpiece from both ends, thereby ensuring the stability of the heat exchanger shell workpiece during welding.

[0014] (3) By fixing side connecting plates on the outer walls on both sides of the strip seat, and by using several reinforcing ribs to enhance the structural strength between the side connecting plates and the strip seat, and by installing two lifting rings on the top of each of the two side connecting plates, the welding fixture structure can be lifted and moved as a whole by using four lifting rings, thereby achieving the purpose of facilitating the lifting and transportation of the welding fixture structure. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0017] Figure 3 This is a front view structural diagram of the present invention;

[0018] Figure 4 This is a schematic diagram of the rear view of the upper clamping plate of this utility model.

[0019] In the diagram: 1. Base; 2. Limiting rail; 3. Rail seat; 4. Bearing platform; 5. Positioning seat; 6. Electric push rod; 7. Strip seat; 8. Strip plate; 9. Base frame; 10. Heat exchanger shell workpiece; 11. First electrical control box; 12. Second electrical control box; 13. Side connecting plate; 14. Lifting ring; 15. Reinforcing rib; 16. Support frame; 17. Lower clamping plate; 18. Placement rack; 19. Lifting cylinder; 20. Linkage seat; 21. Upper clamping plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] Please see Figure 1-4 The present invention provides an embodiment of a welding fixture structure for a heat exchanger shell, comprising a base 1, a positioning seat 5 fixed on one side of the top of the base 1, two limiting rails 2 on the top of the base 1 on one side of the positioning seat 5, rail seats 3 slidably connected to the top of each limiting rail 2, a bearing platform 4 installed on the top of the two rail seats 3, an electric push rod 6 installed on the inner wall of one side of the positioning seat 5, the end of the electric push rod 6 away from the positioning seat 5 connected to the outer wall of one side of the bearing platform 4, a strip seat 7 at the center of the top of the bearing platform 4, side connecting plates 13 fixedly installed on the outer walls on both sides of the strip seat 7, the bottom end of the side connecting plate 13 connected to the top of the bearing platform 4;

[0022] In use, the side connecting plate 13 is provided to facilitate the placement of the lifting ring 14;

[0023] Both sides of the top of the side connecting plate 13 are equipped with lifting rings 14, and two reinforcing ribs 15 are provided on the inner wall of the side connecting plate 13. The bottom end of the reinforcing rib 15 is fixedly connected to the top of the strip seat 7.

[0024] In use, the welding fixture structure is hoisted and transported as a whole by setting up several lifting rings 14;

[0025] A strip plate 8 is fixedly installed on the top of the strip base 7. A second electrical control box 12 is installed on the top of the support platform 4 in front of the strip base 7. The output terminal of the microcontroller inside the second electrical control box 12 is electrically connected to the input terminal of the electric push rod 6. A base frame 9 is installed on the top of the strip plate 8. A first electrical control box 11 is installed on one side of the top of the base frame 9. Support frames 16 are provided on the top of the base frames 9 on both sides of the first electrical control box 11. A lower clamping plate 17 is installed on the top of the support frame 16.

[0026] In use, the lower clamping plate 17 is used to support and position the heat exchanger shell workpiece 10.

[0027] A component rack 18 is installed on one side of the outer wall of the support frame 16. A lifting cylinder 19 is installed on the outer wall of the component rack 18 away from the lower clamping plate 17. The input end of the lifting cylinder 19 is electrically connected to the output end of the microcontroller inside the first electrical control box 11.

[0028] In use, the lifting cylinder 19 is used to drive the upper clamping plate 21 to perform lifting and lowering operations.

[0029] A linkage seat 20 is installed at the top of the lifting cylinder 19. An upper clamping plate 21 is installed at the end of the linkage seat 20 away from the lifting cylinder 19. A heat exchanger shell workpiece 10 is clamped and installed between the upper clamping plate 21 and the lower clamping plate 17.

[0030] In use, the upper clamping plate 21 is set up to cooperate with the lower clamping plate 17 to clamp and fix the heat exchanger shell workpiece 10.

[0031] In this embodiment, the heat exchanger shell workpiece 10 is first positioned at both ends on the top of the lower clamping plate 17. Then, the lifting cylinder 19 is activated, driving the upper clamping plate 21 downwards via the linkage seat 20. This causes the upper clamping plate 21 to move downwards and fit against the upper outer wall of the heat exchanger shell workpiece 10. The upper clamping plate 21, in conjunction with the lower clamping plate 17, clamps and fixes the heat exchanger shell workpiece 10 from both ends, ensuring stability during welding. Afterwards, the electric push rod 6 drives the support platform 4 to move horizontally, causing the support platform 4 to slide along the top of the limiting rail 2. The bearing platform 4 drives the heat exchanger shell workpiece 10 above it to move smoothly horizontally, thereby adjusting the position of the heat exchanger shell workpiece 10 horizontally. This allows welding operations to be performed on the designated area of ​​the heat exchanger shell workpiece 10 without moving the welding equipment. Finally, side connecting plates 13 are fixedly installed on the outer walls on both sides of the strip seat 7, and several reinforcing ribs 15 enhance the structural strength between the side connecting plates 13 and the strip seat 7. Two lifting rings 14 are installed at the top of each of the two side connecting plates 13, so that the welding fixture structure can be lifted and transported as a whole by the four lifting rings 14, thus completing the use of the welding fixture structure.

Claims

1. A welding fixture structure for a heat exchanger shell, characterized in that: Includes a base (1), a positioning seat (5) fixed on one side of the top of the base (1), two limiting rails (2) provided on the top of the base (1) on one side of the positioning seat (5), rail seats (3) slidably connected to the top of each limiting rail (2), a bearing platform (4) installed on the top of the two rail seats (3), an electric push rod (6) installed on the inner wall of one side of the positioning seat (5), and the end of the electric push rod (6) away from the positioning seat (5) connected to the outer wall of one side of the bearing platform (4). Next, a strip seat (7) is provided at the center of the top of the support platform (4). A strip plate (8) is fixedly installed on the top of the strip seat (7). A second electrical control box (12) is installed on the top of the support platform (4) in front of the strip seat (7). The output end of the single-chip microcomputer inside the second electrical control box (12) is electrically connected to the input end of the electric push rod (6). A base frame (9) is installed on the top of the strip plate (8). A first electrical control box (11) is installed on one side of the top of the base frame (9).

2. The welding fixture structure for a heat exchanger shell according to claim 1, characterized in that: The first electrical control box (11) has a support frame (16) at the top of the base frame (9) on both sides, and a lower clamping plate (17) is installed at the top of the support frame (16).

3. The welding fixture structure for a heat exchanger shell according to claim 2, characterized in that: A component rack (18) is installed on the outer wall of one side of the support frame (16). A lifting cylinder (19) is installed on the outer wall of the component rack (18) away from the lower clamping plate (17). The input end of the lifting cylinder (19) is electrically connected to the output end of the single-chip microcomputer inside the first electrical control box (11).

4. The welding fixture structure for a heat exchanger shell according to claim 3, characterized in that: The top of the lifting cylinder (19) is equipped with a linkage seat (20), and an upper clamping plate (21) is installed at the end of the linkage seat (20) away from the lifting cylinder (19). A heat exchanger shell workpiece (10) is clamped and installed between the upper clamping plate (21) and the lower clamping plate (17).

5. The welding fixture structure for a heat exchanger shell according to claim 1, characterized in that: Side connecting plates (13) are fixedly installed on the outer walls of both sides of the strip seat (7), and the bottom end of the side connecting plate (13) is connected to the top end of the support platform (4).

6. The welding fixture structure for a heat exchanger shell according to claim 5, characterized in that: Both sides of the top of the side connecting plate (13) are equipped with lifting rings (14), and the inner wall of the side connecting plate (13) is provided with two reinforcing ribs (15). The bottom end of the reinforcing ribs (15) is fixedly connected to the top end of the strip seat (7).

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