A heat exchanger welding inclined welding table convenient to operate
By designing an easy-to-operate tilting welding table and utilizing components such as a motor-driven threaded rod and gear transmission, the welding angle can be automatically adjusted and securely fixed, solving the problems of limited operating space and quality control in traditional welding methods, and improving welding efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGSHU REFRIDGERATING EQUIP FOR SPECIAL PURPOSE MFG COOPERATION
- Filing Date
- 2025-06-25
- Publication Date
- 2026-07-03
AI Technical Summary
Traditional horizontal welding methods for heat exchanger tube sheet welding suffer from limited operating space, difficulty in adjusting welding torch posture, high labor intensity, and quality control challenges.
An easy-to-operate tilting welding table was designed. Through the combined use of support components, adjustment components, and fastening components, the welding angle can be automatically adjusted and securely fixed. The table includes a motor-driven threaded rod, gear transmission, and electric telescopic structure.
It improves welding quality and process stability, reduces the labor intensity of operators, enhances welding efficiency and safety, and is adaptable to heat exchangers of different sizes.
Smart Images
Figure CN224445040U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welding table technology, specifically to an easy-to-operate inclined welding table for welding heat exchangers. Background Technology
[0002] As core heat transfer equipment in chemical, energy, and other fields, the manufacturing quality of heat exchangers directly affects system energy efficiency and operational safety. Tube sheet welding is a critical process in heat exchanger assembly, requiring the formation of a complete and dense circumferential weld between hundreds of heat exchange tubes and the tube sheet. Traditional welding processes require the heat exchanger to be placed horizontally on fixed fixtures, necessitating operators to perform various welding postures, such as overhead and flat welding, within a confined space. While this process meets basic welding requirements, it presents significant ergonomic deficiencies and challenges in quality control during practical applications.
[0003] Traditional horizontal welding methods have three major technical bottlenecks: First, the limited operating space makes it difficult to adjust the welding torch posture, making it difficult to ensure the uniformity of weld penetration; second, welders need to frequently change their body position to complete welds at different angles, which is labor-intensive and easily causes fatigue. To address this, we propose an easy-to-control tilting welding table for heat exchanger welding. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide an easy-to-operate tilting welding table for heat exchanger welding, which can adjust the welding angle according to the needs and can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: an easy-to-operate tilting welding table for heat exchanger welding, comprising a support frame and a support assembly;
[0006] Support frame: An internal placement component is installed. Two corresponding connecting components are installed at the front and rear ends of the placement component. Two corresponding fastening components are installed on the front and rear sides of the support frame. The fastening components are connected to the connecting components. Two corresponding adjusting components are installed on the upper side of the placement component. A fixing component is installed on the side of the adjusting component.
[0007] Support assembly: includes a first motor, a moving bar, inclined support blocks, a threaded rod, and a limiting rod. The first motor is installed on the left side of the support frame. The moving bar is slidably connected inside the support frame. Two corresponding inclined support blocks are fixed on the upper side of the moving bar. A threaded hole is opened on the left side of the moving bar, and a threaded rod is threadedly connected inside the threaded hole. The threaded rod is rotatably connected inside the support frame. The output shaft of the first motor is fixed to the left end of the threaded rod. A limiting hole is opened on the left side of the moving bar, and a limiting rod is slidably connected inside the limiting hole. The limiting rod is fixed inside the support frame. The two inclined support blocks are in contact with the lower side of the placement assembly. The input end of the first motor is electrically connected to the output end of an external control switch group. The two inclined support bars are supported by the support assembly.
[0008] Furthermore, the placement assembly includes a placement grid plate, inclined support bars, and connecting rods. Two corresponding inclined support bars are fixed to the lower side of the placement grid plate. The inclined support bars are in contact with the inclined support blocks. A fixing hole is opened on the right side of the inclined support bar. A connecting rod is fixed inside the two fixing holes. Rotating holes are opened on the right ends of both the front and rear sides of the support frame. The front and rear ends of the connecting rod are rotatably connected to the inside of the two rotating holes. The heat exchanger to be welded is stored by setting up the placement assembly.
[0009] Furthermore, the connecting assembly includes a connecting plate and a connecting groove. The connecting plate is fixed to the front end of the connecting rod. The connecting plate has evenly distributed connecting grooves on its circumferential surface. The connecting assembly and the fastening assembly are used to fix the connecting rod.
[0010] Furthermore, the fastening assembly includes a mounting base, a first electric telescopic rod, and a clamp. Two corresponding mounting bases are fixed on the front and rear sides of the support frame. The first electric telescopic rod is mounted on the left side of the mounting base. A clamp is fixed on the telescopic arm of the first electric telescopic rod. The clamp engages inside the connecting groove on the left side. The input end of the first electric telescopic rod is electrically connected to the output end of an external control switch group. The connecting plate is fixed by setting the fastening assembly.
[0011] Furthermore, the adjustment assembly includes a connecting frame, a toothed plate, a sliding frame, a second motor, and a gear. Two corresponding connecting frames are fixed at the front and rear ends of the upper side of the grid plate. A toothed plate is fixed inside the connecting frame, and a sliding frame is slidably connected to the side of the connecting frame. A second motor is installed on the side of the sliding frame, and a gear is fixed on the output shaft of the second motor. The gear meshes with the toothed plate. The input end of the second motor is electrically connected to the output end of an external control switch group. By setting the adjustment assembly to drive the two electric telescopic rods and two fixed plates on the left side to move, the fixing assembly can be conveniently fixed to heat exchangers of different sizes.
[0012] Furthermore, the fixing assembly includes a second electric telescopic rod and a fixing plate. Four second electric telescopic rods are provided. The two second electric telescopic rods on the right side are respectively installed on the right end of the two connecting frame sides, and the two second electric telescopic rods on the left side are respectively installed on the sides of the two sliding frames. The fixing plate is fixed on the telescopic arm of the second electric telescopic rod. The fixing plate has evenly distributed anti-slip grooves on its side. The input end of the second electric telescopic rod is electrically connected to the output end of an external control switch group. The heat exchanger is fixed by setting the fixing assembly.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This easy-to-operate inclined welding table for heat exchanger welding has the following advantages:
[0014] 1. The first motor in the support assembly drives the threaded rod to move the moving bar laterally, creating dynamic contact support between the inclined support block and the inclined support bar, thus enabling continuous adjustment of the tilt angle of the placed grating plate. Operators can flexibly control the tilt angle of the welding table, ensuring the weld is always in the optimal flat welding position, effectively eliminating the need for overhead welding operations and significantly improving welding quality and process stability.
[0015] 2. The adjustment component drives the sliding frame and fixed plate to slide precisely through the meshing transmission of gears and toothed plates. Combined with the four-way linkage telescopic structure, it forms a flexible clamping mechanism. This design can be adapted to heat exchanger tube sheets of different sizes. The anti-slip groove structure ensures that the clamping force is evenly distributed, avoiding workpiece deformation or displacement, and improving welding positioning accuracy and compatibility.
[0016] 3. The fastening components utilize an electric telescopic drive that engages and locks with the slot, achieving a secure fixation through multi-point mechanical locking. Once the tilt angle is set, the system automatically triggers the locking procedure, effectively resisting processing vibrations and overturning moments, ensuring rigid support during operation. Compared to traditional manual fastening methods, this significantly improves operational efficiency and safety. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the front structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the support component structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the fixing component structure of this utility model.
[0020] In the diagram: 1 Support frame, 2 Support component, 21 First motor, 22 Moving bar, 23 Inclined support block, 24 Threaded rod, 25 Limiting rod, 3 Placement component, 31 Placement grid plate, 32 Inclined support bar, 33 Connecting rod, 4 Connecting component, 41 Connecting plate, 42 Connecting groove, 5 Fastening component, 51 Mounting base, 52 First electric telescopic rod, 53 Clip head, 6 Adjustment component, 61 Connecting frame, 62 Tooth plate, 63 Sliding frame, 64 Second motor, 65 Gear, 7 Fixing component, 71 Second electric telescopic rod, 72 Fixing plate. Detailed Implementation
[0021] 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.
[0022] Please see Figure 1-3 This embodiment provides a technical solution: an easy-to-operate tilting welding table for heat exchanger welding, including a support frame 1 and a support component 2;
[0023] Support frame 1: An internal placement component 3 is installed. Two corresponding connecting components 4 are installed at the front and rear ends of the placement component 3. Two corresponding fastening components 5 are installed on the front and rear sides of the support frame 1, and the fastening components 5 are connected to the connecting components 4. Two corresponding adjusting components 6 are installed on the upper side of the placement component 3. Fixing components 7 are installed on the sides of the adjusting components 6. The placement component 3 includes a placement grid plate 31, inclined support bars 32, and connecting rods 33. Two corresponding inclined support bars 32 are fixed to the lower side of the placement grid plate 31. The inclined support bars 32 are in contact with the inclined support block 23. Fixing holes are opened on the right side of the inclined support bars 32, and connecting rods 33 are fixed inside the two fixing holes. The right sides of the front and rear sides of the support frame 1... Both ends of the connecting rod 33 are provided with rotating holes, and the front and rear ends of the connecting rod 33 are rotatably connected to the inside of the two rotating holes. The connecting assembly 4 includes a connecting plate 41 and a connecting groove 42. The front end of the connecting rod 33 is fixed with the connecting plate 41, and the circumferential surface of the connecting plate 41 is provided with evenly distributed connecting grooves 42. The fastening assembly 5 includes a mounting base 51, a first electric telescopic rod 52, and a clamp 53. Two corresponding mounting bases 51 are fixed on the front and rear sides of the support frame 1. The first electric telescopic rod 52 is installed on the left side of the mounting base 51. The clamp 53 is fixed on the telescopic arm of the first electric telescopic rod 52 and is engaged with the inside of the connecting groove 42 on the left side. The input end of the first electric telescopic rod 52 is electrically connected to the output end of an external control switch group. The adjusting assembly 6 includes a connecting frame. The frame 61, toothed plate 62, sliding frame 63, second motor 64, and gear 65 are arranged. Two corresponding connecting frames 61 are fixed at the front and rear ends of the upper side of the grid plate 31. The toothed plate 62 is fixed inside the connecting frame 61. The sliding frame 63 is slidably connected to the side of the connecting frame 61. The second motor 64 is mounted on the side of the sliding frame 63. A gear 65 is fixed to the output shaft of the second motor 64, meshing with the toothed plate 62. The input end of the second motor 64 is electrically connected to the output end of an external control switch group. The fixing assembly 7 includes a second electric telescopic rod 71 and a fixing plate 72. Four second electric telescopic rods 71 are provided; the two on the right are respectively installed at the right ends of the two connecting frames 61, and the two on the left... The second electric telescopic rod 71 is installed on the side of the two sliding frames 63 respectively. The telescopic arm of the second electric telescopic rod 71 is fixed with a fixing plate 72. The side of the fixing plate 72 is provided with evenly distributed anti-slip grooves. The input end of the second electric telescopic rod 71 is electrically connected to the output end of the external control switch group. The heat exchanger is fixed by setting the fixing component 7. The two electric telescopic rods 71 and the two fixing plates 72 on the left side are moved by setting the adjustment component 6. In this way, the fixing component 7 can be conveniently fixed to heat exchangers of different sizes. The connecting plate 41 is fixed by setting the fastening component 5. The connecting rod 33 is fixed by setting the connecting component 4 and the fastening component 5. The heat exchanger to be welded is stored by setting the placement component 3.
[0024] Support component 2 includes a first motor 21, a moving bar 22, an inclined support block 23, a threaded rod 24, and a limiting rod 25. The first motor 21 is installed on the left side of the support frame 1. The moving bar 22 is slidably connected inside the support frame 1. Two corresponding inclined support blocks 23 are fixed on the upper side of the moving bar 22. A threaded hole is opened on the left side of the moving bar 22. A threaded rod 24 is threadedly connected inside the threaded hole. The threaded rod 24 is rotatably connected inside the support frame 1. The output shaft of the first motor 21 is fixed to the left end of the threaded rod 24. A limiting hole is opened on the left side of the moving bar 22. A limiting rod 25 is slidably connected inside the limiting hole. The limiting rod 25 is fixed inside the support frame 1. The two inclined support blocks 23 are in contact with the lower side of the placement component 3. The input end of the first motor 21 is electrically connected to the output end of an external control switch group. The two inclined support bars 32 are supported by the support component 2.
[0025] The working principle of the tilting welding table for heat exchanger welding provided by this utility model is as follows: When the welding angle needs to be adjusted, the first motor 21 in the support assembly 2 is started, driving the threaded rod 24 to rotate, which in turn drives the moving bar 22 to move laterally along the limiting rod 25. The inclined support block 23 moves synchronously with the moving bar 22, pushing the inclined support bar 32 of the placement assembly 3, so that the placement grid plate 31 rotates around the axis of the connecting rod 33 to the target tilt angle. After the angle adjustment is completed, the first electric telescopic rod 52 of the fastening assembly 5 drives the clamp 53 to embed into the connecting groove 42 of the connecting plate 41, locking the position of the placement assembly. Subsequently, by adjusting the second motor 64 of the assembly 6, the gear 65 is driven to mesh with the toothed plate 62, driving the sliding frame 63 to slide along the connecting frame 61, adjusting the distance between the two fixing plates 72 to match the workpiece size. Finally, the second electric telescopic rod 71 of the fixing assembly 7 pushes the anti-slip fixing plate 72 to clamp the heat exchanger, completing the fully automated adjustment of the welding posture.
[0026] It is worth noting that the external control switch group disclosed in the above embodiments is provided with buttons that correspond one-to-one with the first motor 21, the second motor 64, the first electric telescopic rod 52 and the second electric telescopic rod 71. The first motor 21 and the second motor 64 can be 1LE0003 three-phase asynchronous motors, and the first electric telescopic rod 52 and the second electric telescopic rod 71 can be TGC-A high-thrust electric telescopic rods.
[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A tilting welding table for heat exchanger welding, facilitating handling, characterized in that: It includes a support frame (1) and support components (2); Support frame (1): A placement component (3) is installed inside. Two corresponding connecting components (4) are installed at the front and rear ends of the placement component (3). Two corresponding fastening components (5) are installed on the front and rear sides of the support frame (1). The fastening components (5) are connected to the connecting components (4). Two corresponding adjusting components (6) are installed on the upper side of the placement component (3). A fixing component (7) is installed on the side of the adjusting component (6). Support component (2): includes a first motor (21), a moving bar (22), an inclined support block (23), a threaded rod (24), and a limiting rod (25). The first motor (21) is installed on the left side of the support frame (1). The moving bar (22) is slidably connected inside the support frame (1). Two corresponding inclined support blocks (23) are fixed on the upper side of the moving bar (22). A threaded hole is opened on the left side of the moving bar (22). A threaded rod (24) is threadedly connected inside the threaded hole. The threaded rod (24) is rotatably connected inside the support frame (1). The output shaft of the first motor (21) is fixed to the left end of the threaded rod (24). A limiting hole is opened on the left side of the moving bar (22). A limiting rod (25) is slidably connected inside the limiting hole. The limiting rod (25) is fixed inside the support frame (1). The two inclined support blocks (23) are in contact with the lower side of the placement component (3). The input end of the first motor (21) is electrically connected to the output end of an external control switch group.
2. The inclined welding table for facilitating the operation of welding a heat exchanger according to claim 1, characterized in that: The placement assembly (3) includes a placement grid plate (31), an inclined support bar (32), and a connecting rod (33). Two corresponding inclined support bars (32) are fixed on the lower side of the placement grid plate (31). The inclined support bars (32) are in contact with the inclined support block (23). A fixing hole is provided on the right side of the inclined support bar (32). The connecting rod (33) is fixed inside the two fixing holes. Rotating holes are provided on the right ends of the front and rear sides of the support frame (1). The front and rear ends of the connecting rod (33) are rotatably connected to the inside of the two rotating holes.
3. The inclined welding table for facilitating the manipulation of heat exchanger welding according to claim 2, characterized in that: The connecting component (4) includes a connecting plate (41) and a connecting groove (42). The front end of the connecting rod (33) is fixed with the connecting plate (41), and the connecting groove (42) is evenly distributed on the circumferential surface of the connecting plate (41).
4. The inclined welding table for facilitating the manipulation of heat exchanger welding according to claim 3, characterized in that: The fastening assembly (5) includes a mounting base (51), a first electric telescopic rod (52), and a clamp (53). Two corresponding mounting bases (51) are fixed on the front and rear sides of the support frame (1). The first electric telescopic rod (52) is installed on the left side of the mounting base (51). A clamp (53) is fixed on the telescopic arm of the first electric telescopic rod (52). The clamp (53) is engaged inside the connecting groove (42) on the left side. The input end of the first electric telescopic rod (52) is electrically connected to the output end of an external control switch group.
5. The inclined welding table for easy handling of heat exchanger welding as claimed in claim 2 wherein: The adjustment assembly (6) includes a connecting frame (61), a toothed plate (62), a sliding frame (63), a second motor (64), and a gear (65). Two corresponding connecting frames (61) are fixed at the front and rear ends of the upper side of the placement grid plate (31). A toothed plate (62) is fixed inside the connecting frame (61). A sliding frame (63) is slidably connected to the side of the connecting frame (61). A second motor (64) is installed on the side of the sliding frame (63). A gear (65) is fixed on the output shaft of the second motor (64). The gear (65) meshes with the toothed plate (62). The input end of the second motor (64) is electrically connected to the output end of an external control switch group.
6. The inclined welding table for easy handling of heat exchanger welding as claimed in claim 5 wherein: The fixing component (7) includes a second electric telescopic rod (71) and a fixing plate (72). There are four second electric telescopic rods (71). The two second electric telescopic rods (71) on the right side are respectively installed on the right end of the two connecting frames (61), and the two second electric telescopic rods (71) on the left side are respectively installed on the side of the two sliding frames (63). The fixing plate (72) is fixed on the telescopic arm of the second electric telescopic rod (71). The side of the fixing plate (72) is provided with uniformly distributed anti-slip grooves. The input end of the second electric telescopic rod (71) is electrically connected to the output end of an external control switch group.