Winding fixture and method

Abstract

The application provides a winding forming tool and method, which comprises a driving part, a limiting part and a guiding part. The guiding part is movably fixed to one end of the limiting part, the driving part is rotatably arranged in the limiting part from the other end of the limiting part and partially penetrates into the guiding part, and the driving part moves along the axial direction of the limiting part with the rotation of itself. The driving part is provided with a first spiral platform towards the guiding part, the guiding part is provided with a guiding opening in the radial direction and a second spiral platform towards the driving part. The first spiral platform and the second spiral platform are arranged in a gap fit mode, the gap is communicated with the guiding surface, and the winding wire penetrating from the gap is arranged to penetrate out of the guiding opening. In the use process, the guiding part and the driving part cooperate with each other to bend and clamp the winding wire, so that the winding wire does not slip in the subsequent bending process.

Description

Technical Field

[0001] This invention relates to the field of medical technology, and in particular to a winding shaping tool and method. Background Technology

[0002] The inlet tube is the core component of the cryoablation system. It has a nozzle at one end, and its main function is to transport the liquid nitrous oxide inside the device to the inside of the balloon and spray it out evenly. Since it needs to be fixed to the outer wall of the inner tube and the nozzle cannot be blocked by the inner tube, making it spirally coiled on the inner tube is the best solution.

[0003] The inlet pipe is made of nickel-titanium alloy (NiTi), and the raw material is a straight pipe, which is not easy to undergo plastic deformation at room temperature. Therefore, it is necessary to use tooling to apply force to coil it into a spiral shape and shape it.

[0004] There are two main methods for winding:

[0005] Method 1: For raw materials that do not easily undergo plastic deformation at room temperature, they are generally wound and fixed first, and then heated to relieve stress and shape. During winding, one end is fixed, and a tension is applied to the free end to ensure that the liquid inlet pipe fits the drive part. This force must be maintained throughout the process to overcome the restoring force of the liquid inlet pipe.

[0006] Method 2: For raw materials that are prone to plastic deformation at room temperature, or for cases where the plasticity of the raw materials is enhanced by preheating, a constant positive pressure is generally applied at the entry point of the bend to cause the object to be wound to undergo plastic bending directly, and the force does not need to be maintained in the subsequent process.

[0007] The above two working methods have the following shortcomings:

[0008] For Method 1, as mentioned above, in order to deform the material and prevent it from returning to its original state, a large tension force is required at the free end, in the same direction as the axis. This force will cause two problems: First, it will generate excessive normal pressure on the material: In order to generate this tension force, the external force needs to apply strong normal pressure to both the free end and the fixed end of the material. Excessive normal pressure may damage the material. For cases where one end of the pipe needs to be preserved, this force value needs to be controlled. Second, it will generate excessive normal pressure on the drive unit: The tension force after the first turn mainly acts on the drive unit. If this force is too large, the drive unit will bend or break.

[0009] For method two, its effectiveness is limited or its implementation is difficult for materials that do not readily undergo plastic deformation at room temperature, or for applications where pre-heat treatment is not advisable. Pre-heat treatment causes deformation of the pipe cross-section during bending stress, making this method unsuitable for winding thin-walled pipes.

[0010] In addition, the following problems exist with method one:

[0011] (1) The current tooling equipment will produce indentations on the surface of the pipe during winding. In mild cases, it will affect the liquid flow rate, and in severe cases, it will cause the liquid inlet pipe to break and the pipe to be scrapped.

[0012] (2) When using existing tooling and equipment for winding, the finished product size is greatly affected by human factors, and there are differences even within the same batch, which ultimately affects the performance.

[0013] (3) Due to the structure of the tooling, the existing winding method requires strong grip strength from the operator, resulting in high labor intensity and some operations may cause physical injury to the operator.

[0014] Overall, the existing tooling and equipment have a low pass rate and are not user-friendly, so improvements are urgently needed. Summary of the Invention

[0015] The purpose of this invention is to provide a winding shaping tool and method to solve one or more problems in the prior art.

[0016] To solve the above-mentioned technical problems, the present invention provides a winding shaping tool, comprising: a driving part, a limiting part, and a guiding part; the guiding part is movably fixed to one end of the limiting part, the driving part is rotatably inserted through the limiting part from the other end of the limiting part and partially inserted into the guiding part, and the driving part moves along the axial direction of the limiting part as it rotates.

[0017] The driving part has a first spiral platform facing the guiding part, and the guiding part has a guide port arranged radially and a second spiral platform facing the driving part; the first spiral platform and the second spiral platform are arranged in a gap fit, the gap is connected to the guide port, and the winding wire that enters through the gap exits along the guide port.

[0018] Optionally, in the winding and shaping tool, the first spiral table and the second spiral table have the same helix angle. When the first spiral table and the second spiral table are arranged together, the helix angle of the wound wire is defined to be the same as the helix angle of the first spiral table and the second spiral table.

[0019] Optionally, in the aforementioned winding and shaping tool, the guide portion has a guide surface disposed at the guide opening, and the second spiral platform smoothly transitions to the guide surface.

[0020] Optionally, in the aforementioned winding shaping tool, the guide surface includes an inward slope and a bending slope, the wall of the second spiral platform smoothly transitions to the inward slope, and the platform surface of the second spiral platform smoothly transitions to the bending slope.

[0021] Optionally, in the winding shaping tool, when the driving part rotates one revolution, the distance by which the driving part moves along the axial direction of the limiting part is equal to the diameter of the winding wire.

[0022] Optionally, in the winding shaping tool, the driving part includes a feed thread section, and the limiting part has a feed thread hole that matches the feed thread section. The feed thread section rotates in the feed thread hole and moves axially along the limiting part. The pitch of the feed thread section is equal to the diameter of the winding wire.

[0023] Optionally, in the aforementioned winding and shaping tool, the driving part includes a head section, the head section including an outer shaft and an inner shaft extending from the end of the outer shaft away from the feed thread section. After the driving part enters the limiting part, the inner shaft extends out of the limiting part. The limiting part has a guide hole, the inner diameter of which matches the outer diameter of the outer shaft and is smaller than the inner diameter of the feed thread hole.

[0024] Optionally, in the aforementioned winding and shaping tool, the first spiral platform is located at the end of the outer shaft away from the feed thread section, the outer diameter of the second spiral platform is adapted to the outer diameter of the outer shaft, and the inner diameter of the second spiral platform is adapted to the outer diameter of the inner shaft.

[0025] Optionally, in the winding shaping tool, the drive unit further includes a tail section for transmitting torque to move the drive unit within the limiting portion along the axial direction of the limiting portion.

[0026] Optionally, in the winding shaping tool, the driving part has axially distributed grooves on the side wall for the winding wire to pass through, and the grooves smoothly transition to the first spiral table.

[0027] Optionally, in the winding shaping tool, the winding shaping tool further includes a clamping mechanism for detachably fixing the guide portion to the limiting portion.

[0028] Optionally, in the winding shaping tool, the limiting part has a threaded hole group at one end of the guide part, the clamping mechanism includes a clamping block and a screw, the clamping block has a through hole group that extends along the thickness direction, and the screw passes through the through hole group and then into the threaded hole group to fix the guide part to the limiting part.

[0029] Optionally, in the winding shaping tool, the threaded hole group includes four threaded holes, two of which are located on both sides of the axis of the limiting part in a first direction, and the other two of which are located on both sides of the axis of the limiting part in a second direction. The first direction is perpendicular to the second direction. The through hole group includes two screw through holes, which are correspondingly arranged with the two threaded holes located in the first direction or the second direction.

[0030] Optionally, in the winding shaping tool, the contact surface between the clamping mechanism and the guide is a rough surface, and / or the contact surface between the guide and the limiting part is a rough surface.

[0031] The present invention also provides a method for winding a shaping tool as described in any of the preceding claims, comprising:

[0032] After the driving part is sequentially passed through the limiting part and the guiding part, the winding wire is passed out from the guide opening of the guiding part;

[0033] Adjust the angle between the guide port and the winding wire on the drive section; and,

[0034] Maintaining the angle between the guide port and the winding wire at a set angle, rotate the drive unit to wind the winding wire onto the drive unit.

[0035] In summary, in the winding shaping tool and method provided by the present invention, the winding shaping tool includes: a driving part, a limiting part, and a guiding part; the guiding part is movably fixed to one end of the limiting part, the driving part is rotatably inserted through the limiting part from the other end of the limiting part and partially inserted into the guiding part, and the driving part moves along the axial direction of the limiting part as it rotates.

[0036] The driving part has a first spiral platform facing the guiding part, and the guiding part has a radially arranged guiding port and a second spiral platform facing the driving part; the first spiral platform and the second spiral platform are arranged in a gap fit, the gap communicating with the guiding port, and the winding wire entering through the gap exiting through the guiding port. In the winding and shaping tool provided by the present invention, during use, the guiding part and the driving part cooperate to bend and clamp the winding wire. The "bending" here is the required deformation of the winding wire, while the "clamping" fixes the winding wire, preventing slippage during subsequent bending.

[0037] Furthermore, the winding shaping tool provided by the present invention, when the driving part rotates one revolution, the distance that the driving part moves along the axial direction of the limiting part is equal to the diameter of the winding wire, so that the winding wire wound on the inner shaft of the driving part by the rotation of the driving part is sufficiently axially and radially limited in the internal space, thereby avoiding deformation caused by loosening of the winding wire during the winding process. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the structure of the winding shaping tool provided in an embodiment of the present invention;

[0039] Figure 2 This is a schematic diagram of the drive unit in an embodiment of the present invention;

[0040] Figure 3 and Figure 4 These are schematic diagrams of the guide section from different perspectives in embodiments of the present invention;

[0041] Figure 5 This is a half-section planar schematic diagram of the limiting part and the guiding part during the winding process in an embodiment of the present invention;

[0042] Figure 6 This is a cross-sectional view of the limiting part in an embodiment of the present invention.

[0043] Figure 7 This is a schematic diagram illustrating the connection method of the clamping block on the limiting part in an embodiment of the present invention;

[0044] Figure 8 This is a schematic diagram of the clamping block in an embodiment of the present invention;

[0045] Figure 9 This is a schematic diagram showing the positional relationship between the guide part and the drive part in an embodiment of the present invention;

[0046] Figure 10 This is a schematic diagram of wire bending in an embodiment of the present invention;

[0047] Figure 11 This is a schematic diagram of the wire winding process in an embodiment of the present invention;

[0048] The labels in the accompanying drawings are explained as follows:

[0049] 1-Clamping block; 2-Guide part; 3-Wire winding; 4-Limiting part; 5-Drive part; 6-Screw;

[0050] 7-Screw through hole; 8-Inner shaft through hole; 9-Paste surface one;

[0051] 10-Bending slope of the guide section; 11-Rough surface II; 12-Inner shaft guide hole; 13-Platform wall; 14-Platform surface; 15-Screwing slope; 16-Guide opening; 161-Guide surface;

[0052] 17-Inner shaft; 18-Bending slope of drive section; 19-Slot; 20-Feed thread section; 21-Tail section; 22-Outer shaft; 23-First screw platform;

[0053] 24-Threaded hole; 25-Outer shaft guide hole; 26-Limiting surface; 27-Feed threaded hole; 28-Fixed plane;

[0054] 31 - Winding spiral section; 32 - Second spiral platform. Detailed Implementation

[0055] To make the objectives, advantages, and features of this invention clearer, the invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the drawings are all in a very simplified form and are not drawn to scale, and are only used to facilitate and clearly illustrate the objectives of the embodiments of this invention. Furthermore, the structures shown in the drawings are often part of the actual structures. In particular, different figures may emphasize different aspects and sometimes use different scales. It should also be understood that, unless specifically stated or indicated, the terms "first," "second," "third," etc., in the specification are only used to distinguish the various components, elements, steps, etc., in the specification, and are not used to indicate the logical or sequential relationships between the various components, elements, steps, etc.

[0056] like Figure 1 As shown, an embodiment of the present invention provides a winding shaping tool, which includes a driving part 5, a limiting part 4, and a guiding part 2. The guiding part 2 is movably fixed to one end of the limiting part 4. The driving part 5 is rotatably inserted through the limiting part 4 from the other end of the limiting part 4 and partially inserted into the guiding part 2. The driving part 5 moves along the axial direction of the limiting part 4 as it rotates.

[0057] Among them, such as Figure 2 As shown, the driving unit 5 has a first spiral stage 23 disposed towards the guide unit 2; as Figure 3 and Figure 4 As shown, the guide portion 2 has a guide port 16 arranged radially and a second spiral stage 32 arranged toward the drive portion 5. Figure 3 and Figure 4 The middle label shows the wall 13 and the surface 14 of the second spiral stage 32; the first spiral stage 23 and the second spiral stage 32 are arranged in a gap fit, the gap is connected to the guide port 16, and the winding wire 3 that enters through the gap passes out along the guide port 16.

[0058] In the winding and shaping tool provided in this embodiment of the invention, the guide part 2 and the drive part 5 cooperate with each other to bend and clamp the winding wire. The "bending" is the deformation required for the winding wire, while the "clamping" fixes the winding wire so that it does not slip during subsequent bending.

[0059] In this embodiment, preferably, the first spiral platform 23 and the second spiral platform 22 have the same helix angle. The helix angle of the first spiral platform 23 and the second spiral platform 32 determines the helix angle of the spiral segment of the wound wire 3 formed. After the two are arranged in a coordinated manner, the helix angle of the final shaped spiral segment of the wound wire 3 is the same as the helix angle of the first spiral platform 23 and the second spiral platform 32. The helix angle of the spiral segment mentioned here refers to the angle between the tangent of the spiral line and the plane perpendicular to the thread axis.

[0060] The following provides a more detailed description of each component of the winding shaping tool provided in this embodiment.

[0061] In this embodiment, preferably, the guide portion 2 has a guide surface 161 provided in the guide opening 16, that is, the guide surface 161 is formed by an opening in the side wall of the guide portion 2. Specifically, an outwardly opening can be provided in the side wall of the guide portion 2. Figure 3 and Figure 4 The V-shaped notch shown can have an opening angle of, for example, 90°, but this application does not limit this. One side wall of the V-shaped notch forms the guide surface 161, and the second spiral platform 32 smoothly transitions to the guide surface 161. In one specific embodiment, as... Figure 3 and Figure 4 As shown, the guide surface 161 has an entry slope 15 and a bending slope 10. The platform wall 13 of the second spiral platform 32 smoothly transitions to the entry slope 15, and the platform surface 14 of the second spiral platform 32 smoothly transitions to the bending slope 10. The entry slope 15 is used to guide the winding wire 3 to screw in, and the bending slope 10 is used to position the tail of the winding wire 3 (i.e., the winding wire 3 passing through the gap between the first spiral platform 23 and the second spiral platform 32) during winding. The entry slope 15 and the bending slope 10 facilitate the winding wire 3 to pass through the guide opening 16 while preventing damage to the outer wall of the winding wire 3. The bending slope 10 is closer to the other side wall of the V-shaped notch than the entry slope 15.

[0062] In this embodiment, preferably, when the driving part 5 rotates one revolution, the distance the driving part moves along the axial direction of the limiting part 4 is equal to the diameter of the winding wire 3, where the diameter of the winding wire 3 refers to the diameter of the winding wire itself when it is not being wound. Thus, during winding, if... Figure 5As shown, the wound wire 3 just fills the internal space enclosed by the hole walls of the first spiral platform 23, the second spiral platform 32, the driving part 5, and the limiting part 4. The two ends of the wound wire spiral segment 31 are limited by the first spiral platform 23 and the second spiral platform 32 to ensure that the wound wire 3 does not reset.

[0063] In a preferred embodiment, such as Figure 2 As shown, the drive unit 5 includes a feed thread section 20, such as... Figure 6 As shown, the limiting part 4 has a feed threaded hole 27 that matches the feed threaded section 20. The feed threaded section 20 rotates in the feed threaded hole 27 and moves axially along the limiting part 4. The pitch of the feed threaded section 20 is equal to the diameter of the winding wire 3. This ensures that when the driving part 5 rotates one revolution, the distance the driving part 5 moves axially along the limiting part 4 is equal to the diameter of the winding wire 3. That is, in the winding shaping tool provided in this embodiment, the pitch of the feed threaded section 20 of the driving part 5 is the same as the diameter of the winding wire 3, so that the winding wire 3 wound on the driving part 5 by rotating and screwing into the driving part 5 has sufficient axial and radial limitation in the internal space, thereby avoiding deformation caused by loosening of the winding wire 3 during the winding process.

[0064] In addition, such as Figure 2 As shown, the drive unit 5 also includes a head section, which is closer to the guide unit 2 than the feed thread section 20. The head section includes an outer shaft 22 and an inner shaft 17 that extends out of the outer shaft 22 from one end away from the feed thread section 20. After the drive unit 5 enters the limiting part 4, the inner shaft 17 extends out of the limiting part 4. After the guide unit 2 and the limiting part 4 are relatively fixed, the inner shaft 17 enters the guide unit 2. The guide unit 2 has an axially arranged inner shaft guide hole 12, the diameter of which matches the outer diameter of the inner shaft 17. The second screw platform 32 is arranged around the inner shaft guide hole 12.

[0065] like Figure 6 As shown, the limiting part 4 has a guide hole 25 (hereinafter referred to as the outer shaft guide hole 25). The inner diameter of the outer shaft guide hole 25 matches the outer diameter of the outer shaft 22 and is smaller than the inner diameter of the feed thread hole 27. With this design, when the driving part 5 is inserted into the limiting part 4, the feed thread segment 20 can only reach the end face of the feed thread hole 27 that connects with the outer shaft guide hole 25. That is, this end face constitutes the limiting surface 26 of the feed thread segment 20, which is the position where the driving part 5 can be screwed into the limiting part 4 to the deepest extent.

[0066] After the driving part 5 passes through the limiting part 4, the outer shaft 22 extends out of the limiting part 4, or the end face of the outer shaft 22 near the guide part 2 is flush with the end face of the limiting part 4 near the guide part 2. In this embodiment, preferably, after the driving part 5 passes through the limiting part 4, the end face of the outer shaft 22 near the guide part 2 is flush with the end face of the limiting part 4 near the guide part 2.

[0067] Further as Figure 2 As shown, the drive unit 5 further includes a tail section 21, which is used to transmit torque to move the drive unit 5 within the limiting part 4 along the axial direction of the limiting part 4. Specifically, after the drive unit 5 passes through the limiting part 4, the tail section 21 may be located outside the end of the limiting part 4 away from the guide part 2, and the tail section 21 may be a square-headed section to better transmit external torque.

[0068] In this embodiment, the driving unit 5 has axially distributed grooves 19 on its sidewall. Specifically, the grooves 19 are sequentially formed along the tail section 21, the feed thread section 20, and the outer shaft 22. The grooves 19 are used for the winding wire 3 to pass through. That is, the winding wire 3 passes through the grooves 19 of the driving unit 5 and, after passing through the limiting part 4 with the driving unit 5, it exits through the gap between the first spiral platform 23 and the second spiral platform 32. The length of the winding wire 3 exiting through the gap is determined according to the number of turns required for the winding wire 3 to be shaped.

[0069] Preferably, the groove 19 smoothly transitions to the first spiral platform 23. In one specific embodiment, specifically, as shown... Figure 2 As shown, at the end of the outer shaft 22 away from the feed thread section 20, the bottom of one side wall of the groove 19 can be chamfered so that the bottom surface of the side wall is tangent to the surface of the inner shaft 17, and a bending slope 18 of the drive part is formed at the end of the outer shaft 22 away from the feed thread section 20, thereby achieving a smooth transition.

[0070] After the first spiral platform 23 and the second spiral platform 32 are arranged in a matching manner, the bending slope 10 of the guide part and the bending slope 18 of the drive part form a limiting space. When the winding wire 3 is inserted, the limiting space formed by the slope surface of the bending slope 10 of the guide part and the slope surface of the bending slope 18 of the drive part initially bends and fixes the winding wire 3, preventing the winding wire 3 from moving back and forth in the wire groove 19, and at the same time providing a smooth transition area for the winding wire 3 to prevent the surface of the winding wire 3 from being damaged or brittlely broken.

[0071] In this embodiment, as Figure 1As shown, the winding and shaping tool also includes a clamping mechanism, which is used to detachably fix the guide part 2 to the limiting part 4. Through the clamping mechanism, the guide part 2 can rotate at a certain angle relative to the limiting part 4, thereby adjusting the relative position of the guide surface 161 and the wire groove 19, which facilitates the insertion of the winding wire 3.

[0072] In one specific embodiment, the limiting part 4 has a threaded hole group at one end that fixes the guide part 2. The clamping mechanism includes a clamping block 1 and a screw 6. The clamping block 1 has a through hole group that extends along the thickness direction. After the screw 6 passes through the through hole group, it enters the threaded hole group to fix the guide part 2 to the limiting part 4. It can be understood that the thickness direction of the clamping block 1 here refers to the direction perpendicular to the clamping surface of the clamping block 1 that contacts the guide part 2. After the guide part 2 is clamped to the limiting part 4 by the clamping block 1, the thickness direction is consistent with the axial direction of the limiting part 4.

[0073] Better, such as Figure 7 As shown, the threaded hole assembly includes four threaded holes 24, two of which are located on either side of the axis of the limiting part 4 in a first direction, and the other two are located on either side of the axis of the limiting part 4 in a second direction. The first direction is perpendicular to the second direction. Figure 8 As shown, the through-hole group includes two screw through holes 7, which are correspondingly disposed with two threaded holes 24 located in the first direction or the second direction. Furthermore, the through-hole group may also include a through hole for the drive unit 5 to pass through, specifically, an inner shaft through hole 8 for the inner shaft 17 of the drive unit 5 to pass through, the inner shaft through hole 8 being located between the two screw through holes 7.

[0074] Since the components of the winding shaping tool are processed separately, the angle of the wire groove 19 cannot be determined when the drive part 5 rotates to the limiting surface 26 in the limiting part 4, and the extension angle of the guide part 2 and the winding wire 3 cannot be determined either. Under certain special circumstances, the connection between the clamping block 1 and the limiting part 4 will interfere with the winding wire 3. Therefore, four (two pairs) threaded holes 24 are opened on the limiting part 4 to provide two connection methods. The two connection methods compensate for each other and can ensure that at least one connection method is feasible.

[0075] In other embodiments, the clamping mechanism may also employ other mechanisms to fix the guiding mechanism (such as the guiding part 2 mentioned above) to the limiting part 4. For example, a connecting member, such as a connecting ring, is provided on the side wall of the limiting part 4. The clamping mechanism includes a clamping block 1 and a buckle. The guiding mechanism is fixed to the limiting part 4 by snapping the buckle onto the connecting ring. This will not be elaborated further here.

[0076] Preferably, the limiting part 4 has a fixing plane 28, which is disposed along the first direction or along the second direction. For example... Figure 1 As shown, the first direction can be understood as the horizontal direction, the second direction can be understood as the vertical direction, and the fixed plane 28 is along... Figure 1 As shown in the diagram, the horizontal plane 28 prevents the limiting part 4 from rotating during the winding process when an external force is applied.

[0077] In addition, in this embodiment, the contact surface between the pressing mechanism and the guide portion 2 is a rough surface, and / or the contact surface between the guide portion 2 and the limiting portion 4 is a rough surface, for example, Figure 3 and Figure 4 The rough surface 21 shown is 11 and Figure 8 The rough surface 9 shown increases the interaction force between the guide part 2, the clamping mechanism, and the limiting part 4, preventing the screw 6 from being difficult to screw in or from easily loosening during use due to relative sliding. The rough surface can be formed by roughening its surface, for example, by forming patterns on its surface.

[0078] This invention provides a winding method using the winding shaping tool provided in this invention. The winding method includes the following steps:

[0079] S11, after the driving part 5 is sequentially passed through the limiting part 4 and the guiding part 2, the winding wire 3 is passed out from the guiding port 16 of the guiding part 2;

[0080] S12, adjust the angle of the guide port 16 relative to the winding wire 3 on the drive part 5; and

[0081] S13, keeping the angle between the guide port 16 and the winding wire 3 at a set angle, rotate the drive unit 5 so that the winding wire 3 is wound on the drive unit 5.

[0082] The detailed operation process is as follows:

[0083] First, before winding, the tail section 21 of the drive unit 5 controls the feed helical section 20 to screw into the limiting part 4 until it can no longer be turned. At this time, the inner shaft 17 of the drive unit 5 extends out of the limiting part 4 and into the guide part 2. The winding wire 3 is inserted into the wire groove 19 until the winding wire 3 passes through the outer shaft guide hole 25 and then out of the guide opening 16. At this time, the screw-in slope 15 provides positive pressure for bending deformation. The length of the extension is determined according to the number of turns the winding wire 3 needs to be wound.

[0084] Next, the guide part 2 is fitted onto the inner shaft 17 of the drive part 5, and the winding wire 3 is made to adhere to the bending slope 10 of the guide part 2. The angle between the guide opening and the wire groove 19 is adjusted to a set angle, so that the winding wire 3 can smoothly pass through the wire groove 19 without damage. Preferably, the set angle can be defined as the angle between the guide surface 161 and the wire groove 19, and the value range of the set angle is -10° to 35°. It should be noted that when the set angle is negative, it means that the wire groove 19 is in the clockwise direction of the guide surface 161, and when the set angle is positive, it means that the wire groove 19 is in the counterclockwise direction of the guide surface 161. Figure 9 As shown, the angle between the guide surface 161 and the groove 19 is α°, that is, the set angle is α°.

[0085] Next, as Figure 10 As shown, while maintaining the set angle, the clamping block 1 is pressed onto the guide part 2 and sleeved on the inner shaft 17 of the drive part 5. Selecting a method that does not interfere with the rotation of the winding wire 3, insert two fixing screws 6 and tighten them. At this time, all components are installed in place, and the continuous positive pressure provided by the platform wall of the second spiral platform 32 and the hole wall of the outer shaft guide hole 25 maintains the deformation of the winding wire 3.

[0086] Next, rotate the tail section 21 of the drive unit 5 in the opposite direction (opposite to the direction of rotation of the drive unit 5) by hand or external tool. At this time, the part of the winding wire 3 that has passed through comes into contact with the rotation slope 15 of the guide unit 2. The positive pressure of the rotation slope 15 rotates the winding wire 3 and rotates it into the second spiral platform 32 (such as...). Figure 11 As the drive unit 5 continues to rotate, the portion of the winding wire 3 extending out gradually decreases until the winding wire 3 stops rotating when only 1-2 mm of its head is outside the second spiral platform 32. At this time, the winding wire 3 is subjected to the forces of the guide unit 2, the limiting unit 4, and the drive unit 5, so that the wound wire 3 will not come loose.

[0087] Finally, the entire winding and shaping tool is placed in a heat treatment device for heat treatment. After the heat treatment is completed, the drive part 5 and the winding wire 3 are screwed out from the limiting part 4, and the winding wire 3 is removed from the inner shaft 17 of the drive part 5.

[0088] It should be noted that in this example, the winding wire 3 can be a liquid inlet pipe, but this application is not limited to this. Other materials that need to be wound can also use the winding and shaping tool provided in this embodiment.

[0089] In summary, the winding and shaping tool and method provided by the present invention include: a driving part, a limiting part, and a guiding part; the guiding part is movably fixed to one end of the limiting part, and the driving part is rotatably inserted through the limiting part from the other end of the limiting part and partially inserted into the guiding part, and the driving part moves axially along the limiting part as it rotates; the driving part has a first spiral platform facing the guiding part, and the guiding part has a radially arranged guiding opening and a second spiral platform facing the driving part; the first spiral platform and the second spiral platform are arranged in a clearance fit, the gap is connected to the guiding opening, and the winding wire inserted through the gap exits through the guiding opening. In use, the guiding part and the driving part of the winding and shaping tool provided by the present invention cooperate to bend and clamp the winding wire. The "bending" is the required deformation of the winding wire, while the "clamping" fixes the winding wire, preventing slippage during subsequent bending.

[0090] Furthermore, it should be understood that although the present invention has been disclosed above with reference to preferred embodiments, these embodiments are not intended to limit the present invention. For any person skilled in the art, many possible variations and modifications can be made to the technical solutions of the present invention based on the disclosed technical content, or equivalent embodiments with equivalent changes, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the present invention shall still fall within the scope of protection of the present invention.

Claims

1. A winding shaping tool, characterized in that, include: Drive section, limit section, and guide section; The guide portion is movably fixed to one end of the limiting portion, and the driving portion is rotatably inserted through the limiting portion from the other end of the limiting portion and partially inserted into the guide portion. The driving portion moves along the axial direction of the limiting portion as it rotates. The driving part has a first spiral platform facing the guiding part, the guiding part has a guide port arranged radially and a second spiral platform facing the driving part; the first spiral platform and the second spiral platform are arranged in a clearance fit, the clearance is connected to the guide port, and the winding wire that enters through the clearance exits along the guide port; The first and second spiral stages have the same helix angle. When the first and second spiral stages are arranged together, the helix angle of the wound wire is limited to be the same as that of the first and second spiral stages.

2. The winding and shaping tool as described in claim 1, characterized in that, The guide portion has a guide surface disposed at the guide port, and the second spiral platform smoothly transitions to the guide surface.

3. The winding and shaping tool as described in claim 2, characterized in that, The guiding surface includes an inward slope and a folding slope, the wall of the second spiral platform smoothly transitions to the inward slope, and the platform surface of the second spiral platform smoothly transitions to the folding slope.

4. The winding and shaping tool as described in claim 1, characterized in that, When the driving part rotates one revolution, the distance that the driving part moves along the axial direction of the limiting part is equal to the diameter of the winding wire.

5. The winding and shaping tool as described in claim 1, characterized in that, The driving part includes a feed thread section, and the limiting part has a feed thread hole that matches the feed thread section. The feed thread section rotates in the feed thread hole and moves axially along the limiting part. The pitch of the feed thread section is equal to the diameter of the winding wire.

6. The winding and shaping tool as described in claim 5, characterized in that, The drive unit further includes a head section, which includes an outer shaft and an inner shaft that extends out of the outer shaft from one end away from the feed thread section. After the drive unit enters the limiting part, the inner shaft extends out of the limiting part. The limiting part has a guide hole, the inner diameter of which matches the outer diameter of the outer shaft and is smaller than the inner diameter of the feed thread hole.

7. The winding and shaping tool as described in claim 6, characterized in that, The first spiral platform is located at the end of the outer shaft away from the feed thread section, the outer diameter of the second spiral platform is adapted to the outer diameter of the outer shaft, and the inner diameter of the second spiral platform is adapted to the outer diameter of the inner shaft.

8. The winding and shaping tool as described in claim 7, characterized in that, The drive unit further includes a tail section for transmitting torque to move the drive unit within the limiting portion along the axial direction of the limiting portion.

9. The winding and shaping tool as described in claim 1, characterized in that, The drive unit has axially distributed grooves on its sidewalls for the winding wire to pass through, and the grooves smoothly transition to the first spiral platform.

10. The winding and shaping tool as described in claim 1, characterized in that, The winding shaping tool also includes a clamping mechanism for detachably fixing the guide portion to the limiting portion.

11. The winding and shaping tool as described in claim 10, characterized in that, The limiting part has a threaded hole group at one end of the guide part, and the clamping mechanism includes a clamping block and a screw. The clamping block has a through hole group that is arranged through the thickness direction. After the screw passes through the through hole group, it passes into the threaded hole group to fix the guide part to the limiting part.

12. The winding and shaping tool as described in claim 11, characterized in that, The threaded hole group includes four threaded holes, two of which are located on both sides of the axis of the limiting part in a first direction, and the other two threaded holes are located on both sides of the axis of the limiting part in a second direction. The first direction is perpendicular to the second direction. The through hole group includes two screw through holes, which are correspondingly arranged with the two threaded holes located in the first direction or the second direction.

13. The winding and shaping tool as described in claim 10, characterized in that, The contact surface between the clamping mechanism and the guide is a rough surface, and / or the contact surface between the guide and the limiting part is a rough surface.

14. A method for winding using a winding shaping tool as described in any one of claims 1 to 13, characterized in that, include: After the driving part is sequentially passed through the limiting part and the guiding part, the winding wire is passed out from the guide opening of the guiding part; Adjust the angle between the guide port and the winding wire on the drive section; and, Maintaining the angle between the guide port and the winding wire at a set angle, rotate the drive unit to wind the winding wire onto the drive unit.

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