Metal tube spiral fin connecting device

Abstract

The utility model relates to the technical field of heat dissipation metal pipe machining equipment, in particular to a metal pipe spiral fin connecting device. Through the arrangement of a metal strip winding disc, a movable seat, a rotary positioning mechanism, a metal strip extension limiting sleeve, a metal strip notch machining tool, a first telescopic cylinder, a metal strip notch machining tool apron, a second telescopic cylinder, a metal strip winding limiting piece, a third telescopic cylinder and other structures, a metal strip body is spirally wound on the surface of a metal pipe body; the triangular notches are formed in the lower portion of the metal strip body at equal intervals in advance, so that when the metal strip body is bent and wound, the notches are narrowed to form gaps, the bent portion on the inner side of the metal strip body cannot be extruded and deformed, and the cooling fins are convenient to position in the winding process.

Description

Technical Field

[0001] The utility model relates to the technical field of processing equipment for heat dissipation metal pipes, in particular to a connecting device for spiral fins of a metal pipe. Background Art

[0002] In the prior art, one way to connect heat dissipation fins to the outside of a metal pipe is to use a metal strip to be spirally wound around the outer wall of the metal pipe to form spiral fins. However, the problems existing in the processing method of winding spiral fins on the outer wall of the metal pipe in the prior art are as follows: during the process of winding the metal strip around the surface of the metal pipe, the bent part inside the metal strip will be extruded and deformed, making it difficult to position the heat dissipation fins during the winding process. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a connecting device for spiral fins of a metal pipe, which solves the problem that the bent part inside the metal strip is extruded and deformed during the process of spirally winding the metal strip around the surface of the metal pipe in the prior art.

[0004] In order to solve the above technical problem, the technical solution adopted by the utility model is as follows:

[0005] A connecting device for spiral fins of a metal pipe, comprising:

[0006] A frame;

[0007] A metal strip winding disc for winding a metal strip body, and the metal strip winding disc is rotatably connected to the frame;

[0008] A moving seat located in the X direction of the metal strip winding disc, and the moving seat is movably connected to the frame along the Y direction;

[0009] A rotary positioning mechanism connected to the moving seat, and the rotary positioning mechanism is used for rotatably positioning and connecting a metal pipe body, so that the axial direction of the metal pipe body faces the Y direction and rotates along its axial direction;

[0010] A metal strip extension limiting sleeve located between the metal strip winding disc and the moving seat. The metal strip extension limiting sleeve includes a limiting channel facing the X direction for the metal strip body to pass through; an opening is provided in the middle of the metal strip extension limiting sleeve;

[0011] A metal strip notch processing tool movably connected to the frame along the Y direction. The metal strip notch processing tool is located on the reverse side of the opening in the Y direction. The metal strip notch processing tool includes a tool body with a triangular cross section;

[0012] The first telescopic cylinder, the cylinder body of the first telescopic cylinder is connected to the frame, the piston rod of the first telescopic cylinder is connected to the metal strip cutting tool, and the moving direction of the first telescopic cylinder is the Y direction;

[0013] The metal strip cutting tool holder, the metal strip cutting tool holder is movably connected to the frame along the Y direction, the metal strip cutting tool holder is located on the Y-direction side of the opening, and the metal strip cutting tool holder includes a triangular groove that matches the shape of the tool body;

[0014] The second telescopic cylinder, the cylinder body of the second telescopic cylinder is connected to the frame, the piston rod of the second telescopic cylinder is connected to the metal strip cutting tool holder, and the moving direction of the second telescopic cylinder is the Y direction;

[0015] The metal strip winding limiting member, the metal strip winding limiting member is located above the moving seat, the metal strip winding limiting member is located on the X-direction side of the metal strip extension limiting sleeve, and the metal strip winding limiting member is provided with an arc-shaped limiting groove for guiding the metal strip body to wind around the surface of the metal tube;

[0016] The third telescopic cylinder, the cylinder body of the third telescopic cylinder is connected to the frame, the piston rod of the third telescopic cylinder is connected to the metal winding limiting member, and the moving direction of the third telescopic cylinder is the vertical direction.

[0017] Further, in the above metal tube spiral fin connecting device, it further includes:

[0018] The welding mechanism, the welding mechanism includes a fourth telescopic cylinder and a welding torch, the cylinder body of the fourth telescopic cylinder is connected to the frame, the welding torch is connected to the piston rod of the fourth telescopic cylinder, and in one state, the welding part of the welding torch contacts the winding path of the metal strip body and the metal tube body.

[0019] Further, in the above metal tube spiral fin connecting device, the welding torch is located on the X-direction side of the moving seat.

[0020] Further, in the above metal tube spiral fin connecting device, the metal strip cutting tool is detachably connected to the piston rod of the first telescopic cylinder.

[0021] Further, in the above metal tube spiral fin connecting device, the metal strip cutting tool holder is detachably connected to the piston rod of the second telescopic cylinder.

[0022] Further, in the above metal tube spiral fin connecting device, it further includes:

[0023] The lead screw body, the lead screw body is rotatably connected to the frame, the circumferential direction of the lead screw body is the Y direction, and the moving seat is in threaded fit connection with the lead screw body;

[0024] A guide rod, the guide rod is fixedly connected to the frame, the circumferential direction of the guide rod is the Y direction, and the movable seat is connected with the guide rod in a sliding manner;

[0025] The first stepper motor is transmission-connected to the screw body and is used to drive the screw body to rotate in steps.

[0026] Further, in the above-mentioned metal tube spiral fin connection device, the rotation positioning mechanism includes a second stepping motor, a reducer, a first conical clamping member, a fifth telescopic cylinder and a second conical clamping member;

[0027] The reducer is connected to the moving seat, the second stepper motor is transmission-connected to the reducer, the first conical clamp is connected to the output shaft of the reducer, the axial direction of the first conical clamp is the Y direction, the cylinder body of the fifth telescopic cylinder is connected to the moving seat, the second conical clamp is rotatably connected to the fifth telescopic cylinder through a bearing, and the axis of the second conical clamp coincides with that of the first conical clamp.

[0028] The beneficial effect of the utility model lies in that by arranging structures such as a metal strip winding reel, a movable seat, a rotating positioning mechanism, a metal strip extension limit sleeve, a metal strip cutting processing tool, a first telescopic cylinder, a metal strip cutting processing tool seat, a second telescopic cylinder, a metal strip winding limit piece and a third telescopic cylinder, the metal strip body is preliminarily cut with triangular cuts at equal intervals at the lower part before being spirally wound around the surface of the metal tube body, so that when the metal strip body is bent and wound, the cuts are narrowed to form gaps, and the bent portion on the inner side of the metal strip body will not be squeezed and deformed, so that the heat dissipation fins are easy to position during the winding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of a metal tube spiral fin connection device from a first perspective according to a specific implementation mode of the utility model;

[0030] Figure 2 for Figure 1 A magnified view of part A;

[0031] Figure 3 for Figure 1 A magnified view of part B;

[0032] Figure 4 It is a structural schematic diagram of a metal tube spiral fin connection device from a second perspective according to a specific implementation mode of the utility model;

[0033] Figure 5 for Figure 4 Enlarged view of part C;

[0034] Description of labels:

[0035] 1. Frame;

[0036] 2. Metal strip winding reel;

[0037] 3. Metal strip body;

[0038] 4. Moving seat; 41. Screw rod body; 42. Guide rod; 43. First stepping motor;

[0039] 5. Rotary positioning mechanism; 51. Second stepping motor; 52. Reducer; 53. First conical clamping piece; 54. Fifth telescopic cylinder; 55. Second conical clamping piece;

[0040] 6. Metal strip extension limiting sleeve; 61. Limiting channel; 62. Opening;

[0041] 7. Metal strip cutting tool; 71. Tool body;

[0042] 8. First telescopic cylinder;

[0043] 9. Metal strip cutting tool seat; 91. Groove;

[0044] 10. Second telescopic cylinder;

[0045] 11. Metal strip winding limiting piece;

[0046] 12. Third telescopic cylinder;

[0047] 13. Metal tube body;

[0048] 141. Fourth telescopic cylinder; 142. Welding torch. Specific implementation manners

[0049] To describe in detail the technical content, achieved objectives and effects of the present utility model, the following is described in conjunction with the implementation manners and with reference to the drawings.

[0050] Please refer to Figures 1 to 5 , the specific implementation manner of the present utility model relates to a metal tube spiral fin connection device, including:

[0051] Frame 1;

[0052] Metal strip winding reel 2, the metal strip winding reel 2 is used for winding the metal strip body 3, and the metal strip winding reel 2 is rotatably connected to the frame 1;

[0053] Moving seat 4, the moving seat 4 is located in the X direction of the metal strip winding reel 2, and the moving seat 4 is movably connected to the frame 1 along the Y direction;

[0054] Rotary positioning mechanism 5, the rotary positioning mechanism 5 is connected to the moving seat 4, and the rotary positioning mechanism is used for rotationally positioning and connecting the metal tube body 13, so that the axial direction of the metal tube body 13 faces the Y direction and rotates along its axial direction;

[0055] The metal strip extension limiting sleeve 6 is located between the metal strip winding disc 2 and the moving seat 4. The metal strip extension limiting sleeve 6 includes a limiting channel 61 facing the X direction for the metal strip body 3 to pass through; an opening 62 is provided in the middle of the metal strip extension limiting sleeve 6;

[0056] The metal strip cutting tool 7 is movably connected to the frame 1 along the Y direction. The metal strip cutting tool 7 is located on the reverse side of the opening 62 in the Y direction. The metal strip cutting tool 7 includes a tool body 71 with a triangular cross-section;

[0057] The first telescopic cylinder 8 has its cylinder body connected to the frame 1, and its piston rod connected to the metal strip cutting tool 7. The moving direction of the first telescopic cylinder 8 is the Y direction;

[0058] The metal strip cutting tool seat 9 is movably connected to the frame 1 along the Y direction. The metal strip cutting tool seat 9 is located on the Y side of the opening 62. The metal strip cutting tool seat 9 includes a triangular groove 91 that matches the shape of the tool body 71;

[0059] The second telescopic cylinder 10 has its cylinder body connected to the frame 1, and its piston rod connected to the metal strip cutting tool seat 9. The moving direction of the second telescopic cylinder 10 is the Y direction;

[0060] The metal strip winding limiting member 11 is located above the moving seat 4 and on the X side of the metal strip extension limiting sleeve 6. The metal strip winding limiting member 11 is provided with an arc-shaped limiting groove for guiding the metal strip body 3 to wind around the surface of the metal tube;

[0061] The third telescopic cylinder 12 has its cylinder body connected to the frame 1, and its piston rod connected to the metal winding limiting member. The moving direction of the third telescopic cylinder 12 is the vertical direction;

[0062] The connection method of the above connection device includes the following steps:

[0063] The metal tube body 13 is pre-connected to the moving seat 4. Control the third telescopic cylinder 12 to move so that the metal strip winding limiting member 11 is adjusted to an appropriate position. The metal strip body 3 is led out from the metal strip winding disc 2, passes through the limiting channel 61, and then bends under the guidance of the metal strip winding limiting member 11 and winds around the surface of the metal tube body 13;

[0064] Control the moving seat 4 to drive the metal tube body 13 to move step by step in the reverse Y direction, and at the same time control the rotary positioning mechanism 5 to drive the metal tube to rotate step by step along its axial direction; every time the rotary positioning mechanism 5 drives the metal tube to rotate step by step along its axial direction by a first distance, control the first telescopic cylinder 8 and the second telescopic cylinder 10 to move, so that the tool body 71 and the groove 91 cooperate to cut out a triangular notch at the lower part of the metal strip body 3.

[0065] In the above embodiments, the metal strip is provided with an arc-shaped channel around the attachment limiting member 11, and the arc-shaped channel has a certain inclination angle in the spiral direction. After the metal strip body 3 enters the arc-shaped channel, it bends under the guidance of the arc-shaped channel, so that under the action of the rotation and axial movement of the metal tube body 13, the metal strip body 3 is spirally wound around the surface of the metal tube body 13.

[0066] In the above embodiments, after the metal strip body 3 is led out from the metal strip winding disc 2, it passes through the limiting channel 61, and through the mutual cooperation of the metal strip cutting tool 7 and the metal strip cutting tool seat 9, triangular grooves 91 are cut out at equal intervals at the lower part of the metal strip body 3, so that when the subsequent metal strip body 3 is spirally wound around the surface of the metal tube body 13, the metal strip body 3 bends in the direction of the groove 91, causing the groove 91 to narrow to form a strip-shaped gap, and the bent part inside the metal strip body 3 will not be squeezed and deformed, making it convenient to position the heat dissipation fins during the winding process, and enabling the pitch of the spiral fins to remain uniform when the metal strip body 3 is spirally wound around the surface of the metal tube body 13.

[0067] As a preferred embodiment, the connecting device further includes:

[0068] A welding mechanism, the welding mechanism includes a fourth telescopic cylinder 141 and a welding torch 142. The cylinder body of the fourth telescopic cylinder 141 is connected to the frame 1, and the welding torch 142 is connected to the piston rod of the fourth telescopic cylinder 141. In one state, the welding part of the welding torch 142 contacts the winding path of the metal strip body 3 and the metal tube body 13;

[0069] In the connecting method, it further includes the step; when the metal strip body 3 with a triangular notch moves to the position where the welding part of the welding torch 142 is located, control the fourth telescopic cylinder 141 to drive the welding torch 142 to move, so that the welding team welds the connection part of the metal strip body 3 and the metal tube body 13.

[0070] In the above embodiments, when the metal strip body 3 is wound around the surface of the metal tube body 13, the welding torch 142 is aligned with the contact point of the metal strip body 3 and the metal tube body 13 and welded and fixed, so that the metal strip body 3 is automatically and timely welded on the surface of the metal tube body 13 during the process of spiral winding to form fins, avoiding the displacement of the spiral fins and further improving the uniformity of winding.

[0071] As a preferred embodiment, the welding torch 142 is located on the X - side of the moving seat 4, and the welding point of the welding torch 142 is closer to the initial position around which the metal strip body 3 is wound, further improving the uniformity of winding.

[0072] As a preferred embodiment, in the connecting device, the metal strip cutting tool 7 is detachably connected to the piston rod of the first telescopic cylinder 8. Preferably, a first U - shaped groove can be provided at the end of the piston rod of the first telescopic cylinder 8, the metal strip cutting tool 7 is provided with a first connecting portion that is in transitional fit with the first U - shaped groove, corresponding bolt holes are provided between the first connecting portion and the first U - shaped groove, and the first connecting portion and the first U - shaped groove are detachably connected by bolts.

[0073] As a preferred embodiment, in the connecting device, the metal strip cutting tool seat 9 is detachably connected to the piston rod of the second telescopic cylinder 10. Preferably, a second U - shaped groove can be provided at the end of the piston rod of the second telescopic cylinder 10, the metal strip cutting tool seat 9 is provided with a second connecting portion that is in transitional fit with the second U - shaped groove, corresponding bolt holes are provided between the second connecting portion and the second U - shaped groove, and the second connecting portion and the second U - shaped groove are detachably connected by bolts.

[0074] In the above - mentioned embodiments, when the diameter specifications of the metal tube body 13 to be processed are different, the width of the triangular groove 91 of the metal strip body 3 that needs to be processed also needs to change accordingly. The smaller the diameter of the metal tube body 13, the larger the bending angle of the metal strip body 3 during the spiral winding process. Correspondingly, the width of the triangular groove 91 of the metal strip body 3 needs to be larger. By designing the detachable cutting tool and the cutting tool seat structure, it is possible to better adapt to the fin winding processing of different diameter specifications of the metal tube body 13.

[0075] As a preferred embodiment, the depth of the notch is two - thirds to three - quarters of the width of the metal strip body 3, preferably three - quarters.

[0076] As a preferred embodiment, the width of the notch is one - tenth to one - twelfth of the outer diameter of the metal tube body 13.

[0077] As a preferred embodiment, in the connecting device, it further includes:

[0078] A lead screw body 41, the lead screw body 41 is rotatably connected to the frame 1, the circumferential direction of the lead screw body 41 is the Y - direction, and the moving seat 4 is in threaded engagement with the lead screw body 41;

[0079] A guide rod 42, the guide rod 42 is fixedly connected to the frame 1, the circumferential direction of the guide rod 42 is the Y - direction, and the moving seat 4 is in sliding engagement with the guide rod 42;

[0080] The first stepping motor 43, the first stepping motor 43 is in transmission connection with the screw rod body 41, and is used to drive the screw rod body 41 to rotate step by step.

[0081] As a preferred embodiment, in the connection device, the rotation positioning mechanism 5 includes a second stepping motor 51, a speed reducer 52, a first conical clamping member 53, a fifth telescopic cylinder 54 and a second conical clamping member 55;

[0082] The speed reducer 52 is connected to the moving seat 4, the second stepping motor 51 is in transmission connection with the speed reducer 52, the first conical clamping member 53 is connected to the output shaft of the speed reducer 52, the axial direction of the first conical clamping member 53 is the Y direction, the cylinder body of the fifth telescopic cylinder 54 is connected to the moving seat 4, the second conical clamping member 55 is rotatably connected to the fifth telescopic cylinder 54 through a bearing, and the axes of the second conical clamping member 55 and the first conical clamping member 53 coincide.

[0083] 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 metal tube spiral fin connection device, characterized in that: include: frame; A metal strip winding reel, the metal strip winding reel is used to wind the metal strip body, and the metal strip winding reel is rotatably connected to the frame; A movable seat, the movable seat is located in the X direction of the metal strip winding reel, and the movable seat is movably connected to the frame along the Y direction; A rotation positioning mechanism, the rotation positioning mechanism is connected to the moving seat, and the rotation positioning mechanism is used to rotationally position the connected metal tube body so that the axial direction of the metal tube body faces the Y direction and rotates along its axial direction; A metal strip extension limiting sleeve, the metal strip extension limiting sleeve is located between the metal strip winding reel and the movable seat, the metal strip extension limiting sleeve comprises a limiting channel facing the X direction for the metal strip body to pass through; an opening is provided in the middle of the metal strip extension limiting sleeve; A metal strip cutting tool, wherein the metal strip cutting tool is movably connected to the frame along the Y direction, the metal strip cutting tool is located on the opposite side of the opening in the Y direction, and the metal strip cutting tool comprises a tool body with a triangular cross section; A first telescopic cylinder, wherein the cylinder body of the first telescopic cylinder is connected to the frame, the piston rod of the first telescopic cylinder is connected to the metal strip cutting tool, and the moving direction of the first telescopic cylinder is the Y direction; A metal strip cutting tool holder, the metal strip cutting tool holder is movably connected to the frame along the Y direction, the metal strip cutting tool holder is located on the Y direction side of the opening, and the metal strip cutting tool holder includes a triangular groove matching the shape of the tool body; A second telescopic cylinder, wherein the cylinder body of the second telescopic cylinder is connected to the frame, the piston rod of the second telescopic cylinder is connected to the metal strip cutting tool holder, and the moving direction of the second telescopic cylinder is the Y direction; The metal strip is wound around a limiting piece, the metal strip is wound around a limiting piece, the metal strip is wound around a limiting piece, and the metal strip is wound around a limiting piece. The limiting piece is located above the movable seat, the metal strip is wound around a limiting piece, and the metal strip is wound around a limiting piece. The limiting piece is provided with an arc-shaped limiting groove for guiding the metal strip body to be wound around the surface of the metal pipe; The third telescopic cylinder, the cylinder body of the third telescopic cylinder is connected to the frame, the piston rod of the third telescopic cylinder is connected to the metal wrap-around limit piece, and the moving direction of the third telescopic cylinder is the vertical direction.

2. The metal tube spiral fin connection device according to claim 1, characterized in that: Also includes: The welding mechanism comprises a fourth telescopic cylinder and a welding gun, wherein the cylinder body of the fourth telescopic cylinder is connected to the frame, and the welding gun is connected to the piston rod of the fourth telescopic cylinder. In one state, the welding part of the welding gun contacts the winding path of the metal strip body and the metal tube body.

3. The metal tube spiral fin connection device according to claim 2, characterized in that: The welding gun is located on the X-direction side of the movable seat.

4. The metal tube spiral fin connection device according to claim 1, characterized in that: The metal strip cutting tool is detachably connected to the piston rod of the first telescopic cylinder.

5. The metal tube spiral fin connection device according to claim 1, characterized in that: The metal strip cutting tool holder is detachably connected to the piston rod of the second telescopic cylinder.

6. The metal tube spiral fin connection device according to claim 1, characterized in that: Also includes: A screw body, the screw body is rotatably connected to the frame, the circumferential direction of the screw body is the Y direction, and the movable seat is threadedly connected to the screw body; A guide rod, the guide rod is fixedly connected to the frame, the circumferential direction of the guide rod is the Y direction, and the movable seat is connected with the guide rod in a sliding manner; The first stepper motor is transmission-connected to the screw body and is used to drive the screw body to rotate in steps.

7. The metal tube spiral fin connection device according to claim 1, characterized in that: The rotary positioning mechanism includes a second stepping motor, a reducer, a first conical clamping member, a fifth telescopic cylinder and a second conical clamping member; The reducer is connected to the moving seat, the second stepper motor is transmission-connected to the reducer, the first conical clamp is connected to the output shaft of the reducer, the axial direction of the first conical clamp is the Y direction, the cylinder body of the fifth telescopic cylinder is connected to the moving seat, the second conical clamp is rotatably connected to the fifth telescopic cylinder through a bearing, and the axis of the second conical clamp coincides with that of the first conical clamp.

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