Spiral fin screw pitch adjusting and limiting device

Abstract

The utility model relates to the technical field of metal tube spiral fins, in particular to a spiral fin screw pitch adjusting and limiting device which comprises a first chuck, a driving motor, a second chuck, a moving seat, a driving mechanism, a limiting block and a driving piece. A steel belt is wound at one end of a metal pipe, then a driving piece is used for driving a moving block to be close to one side of the metal pipe, then a driving mechanism drives a moving seat, a driving motor drives a first chuck to rotate, and therefore the metal pipe rotates between the first chuck and a second chuck; the screw pitch of the spiral fins of the steel belt wound and attached to the metal pipe is limited, when different screw pitches are needed, the limiting blocks are replaced, and therefore metal spiral finned pipes with different screw pitches can be manufactured.

Description

Technical Field

[0001] The utility model relates to the technical field of metal tube spiral fins, in particular to a spiral fin pitch adjustment and limiting device. Background Art

[0002] As a key component in heat exchangers, the pitch of spiral fins (i.e., the distance between adjacent fins) directly affects the heat exchange efficiency. In the traditional manufacturing process of spiral fins, the adjustment of the pitch often depends on mold design or manual operation, resulting in problems such as insufficient adjustment accuracy and poor consistency. These problems not only affect the heat exchange efficiency but also increase the difficulty and cost of subsequent processing. Therefore, there is an urgent need for a spiral fin pitch adjustment and limiting device that can adjust the pitch of spiral fins during the manufacturing process. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a spiral fin pitch adjustment and limiting device that can adjust the pitch of spiral fins during the manufacturing process.

[0004] To solve the above technical problem, the technical solution adopted by the utility model is: a spiral fin pitch adjustment and limiting device, comprising:

[0005] A base;

[0006] A fixing device, the first fixing device includes a first chuck, a driving motor and a reducer. The driving motor is connected to the base, the driving motor is in transmission connection with the reducer, the first chuck is connected to the output shaft of the reducer, the first chuck is used for clamping one end of the metal tube, and the axial direction of the first chuck is the X direction;

[0007] A second chuck, the second chuck is located on the X-direction side of the fixing device, the second chuck is rotatably connected to the base through a bearing seat, the second chuck is used for clamping the other end of the metal tube, and the second chuck is coaxial with the first chuck;

[0008] A moving seat, the moving seat is movably connected to the base along the X direction or the reverse X direction. A channel for the steel strip to pass through is provided on the moving seat, and a welding gun is provided on the moving seat. The welding point of the welding gun is close to the position where the steel strip winds around the metal tube;

[0009] A driving mechanism for driving the moving seat to move;

[0010] A limiting block, the limiting block is movably connected to the moving seat along the Y direction. The limiting block is located on the reverse Y-direction side of the metal tube, and the arcs of the limiting block located on both sides in the X direction match the arcs of adjacent two spiral fins;

[0011] A driving member for driving the limiting block to move, and the limiting block is detachably connected to the driving member through a fastening device.

[0012] Further, the driving mechanism includes a lead screw shaft and a servo motor. The lead screw shaft is connected to the base, and the lead screw shaft is located on the Y - side of the metal tube. The moving seat is slidably connected to the lead screw shaft. The servo motor is connected to the base and is in transmission connection with the lead screw shaft.

[0013] Further, the driving member is a cylinder. The cylinder block of the cylinder is connected to the moving seat. The axial direction of the cylinder block is the Y - direction. The cylinder is located on the reverse Y - side of the metal tube. The piston rod is connected to the limiting block through a fastening device.

[0014] Further, the fastening device is a flange plate. The flange plate is provided with a through - hole. A threaded hole is provided on one Y - side of the limiting block. One side of the screw passes through the through - hole and the threaded hole to connect the limiting block with the piston rod of the cylinder.

[0015] Further, the spiral fin pitch adjustment limiting device further includes a fixing block. The fixing block includes a horizontal plate and a vertical plate. The vertical plates are connected to both sides of the horizontal plate. The inner wall of the vertical plate is used to clamp the steel belt wound around the X - side of the metal tube.

[0016] The beneficial effects of the present utility model are as follows: One end of the steel belt is wound around the X - end of the metal tube. Then, the driving member drives the limiting block to move close to the reverse Y - side of the metal tube. At this time, the driving mechanism drives the moving seat to move in the reverse X - direction. At the same time, the driving motor drives the chuck to rotate, so as to rotate the metal tube, making the two sides of the limiting block match with two adjacent spiral fins of the steel belt wound around the metal tube, so that the distance between the spiral fins is equal to the distance between the two sides of the limiting block. Then, continue to drive the moving seat by the driving mechanism to weld the spiral fins on the metal tube through the welding gun. When different pitches are required, by replacing the two sides of the limiting block with different arcs and lengths, and then cooperating with the movement of the moving seat, metal tube spiral fins with different pitches are manufactured. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of a spiral fin pitch adjustment limiting device according to a specific embodiment of the present utility model;

[0018] Figure 2 For Figure 1 the enlarged view of part A of

[0019] Label Description

[0020] 1. Base; 11. Metal tube;

[0021] 2. Fixing device; 21. First chuck; 22. Driving motor; 23. Reducer;

[0022] 3. Second chuck;

[0023] 4. Moving seat; 41. Channel; 42. Welding gun;

[0024] 5. Steel strip;

[0025] 6. Driving mechanism; 61. Lead screw shaft; 62. Servo motor;

[0026] 7. Limit block;

[0027] 8. Driving part;

[0028] 9. Fastening device; 91. Flange plate; 911. Through hole;

[0029] 10. Fixed block; 101. Horizontal plate; 102. Vertical plate. Specific implementation mode

[0030] To describe in detail the technical content, achieved purpose and effects of the present utility model, the following is described in conjunction with the implementation mode and accompanied by drawings.

[0031] Please refer to Figures 1 to 2 , a spiral fin pitch adjustment and limit device, comprising:

[0032] Base 1;

[0033] Fixing device 2, the first fixing device 2 includes a first chuck 21, a driving motor 22 and a reducer 23. The driving motor 22 is connected to the base 1, the driving motor 22 is in transmission connection with the reducer 23, the first chuck 21 is connected to the output shaft of the reducer 23, the first chuck 21 is used for clamping one end of the metal tube 11, and the axial direction of the first chuck 21 is the X direction;

[0034] Second chuck 3, the second chuck 3 is located on the X-direction side of the fixing device 2, the second chuck 3 is rotatably connected to the base 1 through a bearing seat, the second chuck 3 is used for clamping the other end of the metal tube 11, and the second chuck 3 is coaxial with the first chuck 21;

[0035] Moving seat 4, the moving seat 4 is movably connected to the base 1 along the X direction or the reverse X direction. The moving seat 4 is provided with a channel 41 for the steel strip 5 to pass through, and the moving seat 4 is provided with a welding gun 42. The welding point of the welding gun 42 is close to the position where the steel strip 5 wraps around the metal tube 11;

[0036] Driving mechanism 6, the driving mechanism 6 is used to drive the moving seat 4 to move;

[0037] Limit block 7, the limit block 7 is movably connected to the moving seat 4 along the Y direction. The limit block 7 is located on the reverse Y-direction side of the metal tube 11, and the arcs of the limit block 7 on both sides in the X direction match those of two adjacent spiral fins;

[0038] Driving part 8, the driving part 8 is used to drive the limit block 7 to move, and the limit block 7 is detachably connected to the driving part 8 through a fastening device 9.

[0039] In the above embodiments, one end of the steel strip 5 is wound around one end of the metal pipe 11 in the X direction. Then, the driving member 8 drives the limiting block 7 to move to the side opposite to the Y direction of the metal pipe 11. At this time, the driving mechanism 6 drives the moving seat 4 to move in the reverse X direction, and at the same time, the driving motor 22 drives the chuck to rotate, so that the metal pipe 11 rotates, and the two sides of the limiting block 7 are matched with the adjacent two spiral fins of the steel strip 5 wound around the metal pipe 11, so that the distance between the spiral fins is equal to the distance between the two sides of the limiting block 7. Then, the driving mechanism 6 continues to drive the moving seat 4 to move, so that the spiral fins are welded to the metal pipe 11 by the welding gun 42. When different pitches are required, by replacing the two sides of the limiting block 7 with different arcs and lengths, and then cooperating with the movement of the moving seat 4, metal pipe 11 spiral fins with different pitches are manufactured.

[0040] As an alternative embodiment, the driving mechanism 6 includes a lead screw shaft 61 and a servo motor 62. The lead screw shaft 61 is connected to the base 1. The lead screw shaft 61 is located on the Y side of the metal pipe 11. The moving seat 4 is slidably connected to the lead screw shaft 61. The servo motor 62 is connected to the base 1, and the servo motor 62 is in transmission connection with the lead screw shaft 61.

[0041] In the above embodiments, the servo motor 62 is turned on to drive the lead screw shaft 61 to rotate, and the lead screw shaft 61 drives the moving seat 4 to move, so as to cooperate with the limiting block 7 to make the pitch distance of the spiral fins of the steel strip 5 wound around the metal pipe 11 equal to the distance between the two sides of the limiting block 7 in the X direction.

[0042] As an alternative embodiment, the driving member 8 is a cylinder. The cylinder block of the cylinder is connected to the moving seat 4. The axial direction of the cylinder block of the cylinder is the Y direction. The cylinder is located on the side opposite to the Y direction of the metal pipe 11. The piston rod is connected to the limiting block 7 through the fastening device 9.

[0043] In the above embodiments, the limiting block 7 is driven to move by the cylinder, so that the limiting block 7 can cooperate with the moving seat 4 to limit the pitch between the spiral fins wound around the metal pipe 11.

[0044] As an alternative embodiment, the fastening device 9 is a flange plate 91. The flange plate 91 is provided with a through hole 911. A threaded hole is provided on the Y side of the limiting block 7. One side of the screw passes through the through hole 911 and the threaded hole to connect the limiting block 7 to the piston rod of the cylinder.

[0045] In the above embodiments, the threaded connection between the flange plate 91 and the screw is a prior art and will not be elaborated here. The limiting block 7 is detachably connected to the piston rod of the cylinder through the flange plate 91, so that different limiting blocks 7 can be replaced to cooperate with the movement of the moving seat 4 to limit the pitch between the steel strips 5 wound around the metal pipe 11.

[0046] As an alternative embodiment, the spiral fin pitch adjusting and limiting device further includes a fixing block 10, which includes a horizontal plate 101 and a vertical plate 102. The vertical plates 102 are connected to both sides of the horizontal plate 101, and the inner walls of the vertical plates 102 are used to clamp the steel strip 5 on the X - side of the metal tube 11 wound around it.

[0047] In the above - mentioned embodiment, by providing the fixing block 10, it is possible to prevent the steel strip 5 from falling off when the metal tube 11 rotates.

[0048] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A spiral fin pitch adjustment and limit device, characterized in that Comprising: Base; Fixing device, the first fixing device includes a first chuck, a driving motor and a speed reducer. The driving motor is connected to the base, the driving motor is in transmission connection with the speed reducer, the first chuck is connected to the output shaft of the speed reducer, the first chuck is used for clamping one end of the metal pipe, and the axial direction of the first chuck is the X direction; Second chuck, the second chuck is located on one side of the fixing device in the X direction, the second chuck is rotatably connected to the base through a bearing block, the second chuck is used for clamping the other end of the metal pipe, and the second chuck is coaxial with the first chuck; Moving seat, the moving seat is movably connected to the base along the X direction or the reverse X direction. A channel for the steel strip to pass through is provided on the moving seat, and a welding gun is provided on the moving seat. The welding point of the welding gun is close to the position where the steel strip winds around the metal pipe; Driving mechanism, the driving mechanism is used to drive the moving seat to move; Limit block, the limit block is movably connected to the moving seat along the Y direction, the limit block is located on the reverse side of the metal pipe in the Y direction, and the radian of the limit block located on both sides in the X direction matches that of two adjacent spiral fins; Driving part, the driving part is used to drive the limit block to move, and the limit block is detachably connected to the driving part through a fastening device.

2. The spiral fin pitch adjustment and limit device according to claim 1, wherein The driving mechanism includes a lead screw shaft and a servo motor. The lead screw shaft is connected to the base, the lead screw shaft is located on one side of the metal pipe in the Y direction, the moving seat is slidably connected to the lead screw shaft, and the servo motor is connected to the base, and the servo motor is in transmission connection with the lead screw shaft.

3. The spiral fin pitch adjustment and limit device according to claim 1, characterized in that The driving part is a cylinder. The cylinder block of the cylinder is connected to the moving seat. The axial direction of the cylinder block of the cylinder is the Y direction. The cylinder is located on the reverse side of the metal pipe in the Y direction. The piston rod is connected to the limit block through a fastening device.

4. The spiral fin pitch adjustment and limit device according to claim 1, characterized in that, The fastening device is a flange plate. Through holes are provided on the flange plate. Threaded holes are provided on one side of the limit block in the Y direction. One side of the screw passes through the through hole and the threaded hole to connect the limit block to the piston rod of the cylinder.

5. The spiral fin pitch adjustment and limit device according to claim 1, wherein, The spiral fin pitch adjustment limit device further includes a fixing block. The fixing block includes a horizontal plate and a vertical plate. The vertical plates are connected to both sides of the horizontal plate. The inner walls of the vertical plates are used to clamp the steel strip wound around one side of the metal pipe in the X direction.

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