Clamp for welding end pipe
By designing a clamp for end-tube welding for condensers, using a rectangular rotating table and a multi-stage screw adjustment mechanism, combined with a movable rod and a limit side rod, the problem of cumbersome and insufficient adaptability of condenser fixing and welding is solved, and efficient clamping and welding effects are achieved.
Patent Information
- Application Number
- CN202421819541.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-30
AI Technical Summary
The prior art has problems such as cumbersome operation and insufficient adaptability in the fixing and welding of condensers. Especially when fixing and welding of condensers of different specifications, it is difficult to achieve efficient clamping and adjustment.
A clamp for end tube welding is designed, using a rectangular rotating table and a multi-stage screw adjustment mechanism, combining a movable rod, clamping side plate and limiting side rod to achieve flexible clamping and position adjustment of the condenser.
This fixture simplifies the fixing and welding operation of the condenser, has strong adaptability, can effectively clamp condensers of different specifications, and improves the efficiency and accuracy of the welding process.
Smart Images
Figure CN222903044U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of condenser pipe processing, in particular to a fixture for end pipe welding. Background Art
[0002] After the fins and the condenser pipes are assembled in the condenser, the end pipes need to be welded to the condenser pipes. During welding, in order to ensure the sealing effect between the condenser pipes and the end pipes, welding is often carried out by rotation. When welding, the condenser needs to be fixed first, and then the position of the condenser is adjusted by a two-dimensional adjustment mechanism so that the extended pipe to be welded is located at the welding position and butted against the end pipe. Then, the condenser is driven to rotate, and the welding operation between the extended pipe and the end pipe is carried out by rotation. When clamping and fixing the condenser, the outside of the condenser is limited by multiple fixing screws, and then the nuts on the screws are tightened so that the nuts are pressed against the condenser, and finally the fixing operation of the condenser is realized. In order to adapt to the fixing of condensers of different specifications, multiple T-shaped slots are provided on the base plate of the rotating table, and the lower ends of the screws are inserted into the T-shaped slots and locked by a nut at the root. When fixing condensers of different specifications in this way, adjustment is required, and there will also be a problem that the condenser cannot be limited by the screws. At the same time, the fixing operation is relatively cumbersome. Summary of the Utility Model
[0003] The utility model provides a fixture for end pipe welding to solve the above-mentioned deficiencies of the prior art, which is convenient for fixing the condenser, has strong adaptability and high practicability.
[0004] In order to achieve the purpose of the utility model, the following technology is proposed:
[0005] A fixture for end pipe welding includes a rotating table. A first lead screw adjustment mechanism is provided on the rotating table. The output end of the first lead screw adjustment mechanism is provided with a second lead screw adjustment mechanism. The moving directions of the first lead screw adjustment mechanism and the second lead screw adjustment mechanism are perpendicular to each other. The rotating table is in a rectangular structure and can rotate around the midline in its width direction. A lower plate is installed on the second lead screw adjustment mechanism. Two pairs of guide holes are symmetrically opened on the lower plate. Moving rods are movably arranged in the guide holes. The upper ends of the moving rods at the same end are provided with clamping side plates, and the clamping side plates can act on both ends of the fins of the condenser to clamp and limit the condenser.
[0006] The lower end of the movable rod located at the same end is provided with a movable lower plate. The movable lower plate is located on the lower side of the lower plate. The movable lower plate is provided with a downward extending convex plate. A pair of guide rods pass through the downward extending convex plate. The inner ends of the guide rods are provided with inner plates. An adjusting screw rod is rotatably provided on the inner plate. The adjusting screw rod is screwed onto the downward extending convex plate. The inner plate is provided with an inward extending convex plate. The inner end of the inward extending convex plate is provided with an acting rod. The lower wall of the lower plate is provided with a connecting side plate. A clamping screw rod is screwed onto the connecting side plate. The outer end of the clamping screw rod is provided with a rotating head. The inner end of the clamping screw rod is provided with a moving inner plate. The moving inner plate is provided with an outward moving lower plate. A pair of inclined holes are symmetrically formed on the outward moving lower plate. There is an included angle between the length direction of the inclined holes and the length direction of the outward moving lower plate. The acting rod passes through the inclined holes. When limiting the position through the clamping side plates, the operation method is simple and easy to implement. Only by rotating the clamping screw rod can the outward moving lower plate be moved. The movement of the outward moving lower plate will cause the inclined holes to act on the acting rod, thereby making the clamping side plates approach each other, and finally the condenser can be clamped through the clamping side plates. The provided adjusting screw rod etc. facilitate the position adjustment of the clamping side plates according to needs, thereby expanding the applicable range.
[0007] Further, a pair of T-shaped strips are formed on the outer wall of the clamping side plates. A plurality of movable sleeves are sleeved on the T-shaped strips. The outer ends of each pair of movable sleeves are provided with outer plates. A positioning screw is threadedly connected to the outer plates. The inner end of the positioning screw acts on the outer wall of the clamping side plates. Long strip holes are formed on the T-shaped strips. The long strip holes penetrate through the clamping side plates. A pair of limiting side rods are provided on the outer plates. The limiting side rods pass through the long strip holes. The inner ends of the limiting side rods are formed with notches in an open manner. Through the limiting side rods and the notches thereon, the fins can be inserted into the notches, thereby limiting the fins through the limiting side rods. At the same time, in order to adapt to condensers of different specifications, the positions of the limiting side rods can be adjusted to expand the applicable range.
[0008] Further, a rotating cap is provided at the outer end of the adjusting screw rod, which is convenient for rotating the adjusting screw rod.
[0009] Further, a moving guiding hole is formed on the outward moving lower plate. A limiting screw is inserted into the moving guiding hole. The limiting screw is provided on the lower plate. The provided limiting screw plays a role in limiting and guiding the outward moving lower plate.
[0010] The advantages of the above technical solutions are as follows:
[0011] The utility model is convenient for clamping operations on condensers of different specifications and is also convenient for clamping operations. Description of the Drawings
[0012] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings.
[0013] Figure 1The three-dimensional structure of one of the embodiments is shown. Figure 1 .
[0014] Figure 2 The three-dimensional structure of one of the embodiments is shown. Figure 2 .
[0015] Figure 3 The enlarged view at position A is shown.
[0016] Figure 4 The three-dimensional structure of one of the embodiments is shown. Figure 3 . Detailed implementation manner
[0017] As Figures 1 to 4 shown, a fixture for end pipe welding includes a rotating table. A first lead screw adjustment mechanism is provided on the rotating table. The output end of the first lead screw adjustment mechanism is provided with a second lead screw adjustment mechanism. The movement directions of the first lead screw adjustment mechanism and the second lead screw adjustment mechanism are perpendicular to each other. The rotating table has a rectangular structure and can rotate around the midline in its width direction. A lower plate 1 is installed on the second lead screw adjustment mechanism. Two pairs of guide holes 10 are symmetrically formed on the lower plate 1. A movable rod 35 is movably arranged in the guide hole 10. A clamping side plate 36 is provided at the upper end of the movable rods 35 at the same end.
[0018] A movable lower plate 34 is provided at the lower end of the movable rods 35 at the same end. The movable lower plate 34 is located below the lower plate 1. A downward extension convex plate 31 is provided on the movable lower plate 34. A pair of guide rods 30 penetrate through the downward extension convex plate 31. An inner plate 29 is provided at the inner end of the guide rod 30. An adjustment lead screw 32 is rotatably arranged on the inner plate 29. A rotating cap 33 is provided at the outer end of the adjustment lead screw 32. The adjustment lead screw 32 is screwed on the downward extension convex plate 31. An inward extension convex plate 28 is provided on the inner plate 29. An acting rod 27 is provided at the inner end of the inward extension convex plate 28. A connecting side plate 2 is provided on the lower wall of the lower plate 1. A clamping lead screw 20 is screwed on the connecting side plate 2. A rotating head 21 is provided at the outer end of the clamping lead screw 20. A moving inner plate 22 is provided at the inner end of the clamping lead screw 20. An outward moving lower plate 23 is provided on the moving inner plate 22. Two pairs of inclined holes 25 are symmetrically formed on the outward moving lower plate 23. There is an included angle between the length direction of the inclined hole 25 and the length direction of the outward moving lower plate 23. The acting rod 27 penetrates through the inclined hole 25. A moving guide hole 24 is formed on the outward moving lower plate 23. A limit screw 26 is inserted into the moving guide hole 24. The limit screw 26 is provided on the lower plate 1.
[0019] A pair of T-shaped bars 37 are formed on the outer wall of the clamping side plate 36. A plurality of movable sleeves 39 are sleeved on the T-shaped bars 37. An outer plate 4 is provided at the outer ends of each pair of movable sleeves 39. A positioning screw 40 is connected to the outer plate 4 by a thread. The inner end of the positioning screw 40 acts on the outer wall of the clamping side plate 36. A long hole 38 is formed in the T-shaped bar 37. The long hole 38 penetrates through the clamping side plate 36. A pair of limiting side rods 41 are provided on the outer plate 4. The limiting side rods 41 pass through the long hole 38. A notch is formed at the inner end of the limiting side rod 41 in an open manner.
[0020] During the operation of this embodiment, the operator first adjusts the distance between the clamping side plate 36 and the inner plate 29 by rotating the adjusting screw rod 32 according to the specifications of the condenser.
[0021] When adjusting the limiting side rod 41, the operator first loosens the positioning screw 40, then places the condenser between the clamping side plates 36, and then adjusts the position of the limiting side rod 41 according to the position of the fins. After adjustment, the limiting side plate 41 is locked by the positioning screw 40.
[0022] When clamping the condenser, the operator places the condenser between the clamping side plates 36.
[0023] Then, the operator rotates the clamping screw rod 20 through the rotating head 21. The rotation of the clamping screw rod 20 will drive the outer moving lower plate 23 to move. When the outer moving lower plate 23 moves, it will act on the acting rod 27 through the inclined hole 25, thereby causing the connecting side plate 2 to move inward, and causing the connecting side plate 2 to act on both sides of the condenser, and causing the fins to be inserted into the notch.
[0024] Then, the position of the condenser is adjusted by the first lead screw adjusting mechanism and the second lead screw adjusting mechanism so that the outer extension pipe and the end pipe are butted together. Then, the rotating mechanism is started to rotate the condenser, and the welding operation between the outer extension pipe and the end pipe is performed during the rotation.
[0025] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.
Claims
1. A fixture for end pipe welding, comprising a rotating table, a first screw adjustment mechanism is provided on the rotating table, a second screw adjustment mechanism is provided at the output end of the first screw adjustment mechanism, the movement directions of the first screw adjustment mechanism and the second screw adjustment mechanism are perpendicular to each other, and the rotating table is a rectangular structure and can be rotated around the center line of its width direction, characterized in that: A lower plate (1) is mounted on the second screw adjustment mechanism, and two pairs of guide holes (10) are symmetrically formed on the lower plate (1). A movable rod (35) is movably provided in the guide hole (10), and a clamping side plate (36) is provided at the upper end of the movable rod (35) at the same end. A movable lower plate (34) is provided at the lower end of the movable rod (35) at the same end, the movable lower plate (34) is located at the lower side of the lower plate (1), a downwardly extending convex plate (31) is provided on the movable lower plate (34), a pair of guide rods (30) are passed through the downwardly extending convex plate (31), an inner plate (29) is provided at the inner side end of the guide rod (30), an adjusting screw (32) is rotatably provided on the inner plate (29), the adjusting screw (32) is screwed to the downwardly extending convex plate (31), an inner plate (29) is provided with an inner extending convex plate (28), and an action rod is provided at the inner side end of the inner extending convex plate (28) (27), the lower wall of the lower plate (1) is provided with a connecting side plate (2), a clamping screw (20) is screwed on the connecting side plate (2), the outer end of the clamping screw (20) is provided with a rotating head (21), the inner end of the clamping screw (20) is provided with a movable inner plate (22), the movable inner plate (22) is provided with an outward lower plate (23), a pair of inclined holes (25) are symmetrically opened on the outward lower plate (23), an angle is formed between the length direction of the inclined hole (25) and the length direction of the outward lower plate (23), and the action rod (27) passes through the inclined hole (25).
2. The end pipe welding fixture according to claim 1, characterized in that: A pair of T-shaped bars (37) are formed on the outer wall of the clamping side plate (36), and a plurality of movable sleeves (39) are sleeved on the T-shaped bars (37). An outer plate (4) is provided at the outer end of each pair of movable sleeves (39). A positioning screw (40) is connected to the outer plate (4) by a thread, and an inner end of the positioning screw (40) acts on the outer wall of the clamping side plate (36). A long hole (38) is opened on the T-shaped bar (37), and the long hole (38) passes through the clamping side plate (36). A pair of limiting side rods (41) are provided on the outer plate (4), and the limiting side rods (41) pass through the long hole (38). A notch is formed at the inner end of the limiting side rod (41).
3. The end pipe welding fixture according to claim 1, characterized in that: A rotating cap (33) is provided at the outer end of the adjusting screw rod (32).
4. The end pipe welding fixture according to claim 1, characterized in that: A movable guide hole (24) is provided on the outwardly movable lower plate (23), a limit screw (26) is inserted into the movable guide hole (24), and the limit screw (26) is arranged on the lower plate (1).