Cos theta type coil double-layer cable winding tool and winding method

Abstract

The invention discloses a cos theta type coil double-layer cable winding tool and method, and relates to the technical field of coil winding, the cos theta type coil double-layer cable winding tool comprises a skeleton, a wire groove, a plurality of occupying strips and a first limiting piece, and the wire groove is formed in the skeleton and is composed of two bent groove sections and a linear groove section; the plurality of occupying strips are matched with the arc shape of the bent groove section and are used for flatly paving and filling the groove bottom of the bent groove section, so that when any occupying strip is taken out, the groove bottom can be exposed to form a storage area for accommodating a cable; the first limiting piece can cover the bent groove section and is used for applying pressing force towards the groove bottom of the bent groove section to the occupying strip. Through the mode that the occupying strips are flatly laid to fill the bent groove sections, penetrating of the cable position is accurately controlled, the storage area can be exposed by taking out the single occupying strip, and the cable can be accurately positioned on the bent sections with complex radians; and in cooperation with continuous pressing of the first limiting piece on the occupying strip, displacement or loosening of the cable in the winding process is effectively prevented, and the winding precision and the coil forming quality are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of coil winding, and in particular to a winding tool and a winding method based on a cosθ-type coil double-layer cable. Background Art

[0002] Cosθ coils (also known as saddle coils) are crucial in particle accelerators and plasma confinement devices. These coils consist of curved segments at both ends and a straight section in the middle. They are wound along the axial surface of a cylinder. This winding method places the cable under no tension or subject it to unstable tension, leading to issues such as springback and difficulty maintaining a stable shape.

[0003] After searching, the patent document with authorization announcement number CN216389064U discloses a transverse magnetic field two-dimensional curved coil winding tool, which includes a limiting ring, a center pressure plate, and a winding base. The limiting ring, the center pressure plate and the winding base are arranged from top to bottom. The shape of the winding base matches the shape of the coil to be wound, so that the wire to be wound can be attached to the winding base and formed according to the shape of the outer wall of the winding base. The center pressure plate is tightly fitted in the center of the winding base. The shape of the center pressure plate is consistent with the shape of the central cavity of the coil to be wound, and is used for the wire to be wound to wrap around itself and fit the shape of the winding base. The limiting ring is semi-annular, and the semi-annular shape matches the shape of the winding base. The limiting ring is fixed above the center pressure plate and close to the winding base. Multiple limiting rings are parallel to each other and spaced apart. The limiting ring is close to the inner wall surface of the winding base and a gap is left between the limiting ring and the outer wall surface of the winding base for the wire to be wound to pass through.

[0004] The aforementioned winding tooling relies on a retaining ring to compress and position the straight sections of the saddle-shaped coil, allowing it to complete the winding process. However, as previously mentioned, a saddle-shaped coil has both straight and curved sections. During the winding process, only the straight sections are retained, while the curved sections are not. This can cause the cables in the curved sections to become loose, and the winding shape may not be properly fixed. Furthermore, when the coil is multi-layered, there is no guarantee that the multiple layers of cables will be arranged in an orderly and close arrangement, resulting in unsatisfactory winding results.

[0005] Since the quality of winding will directly affect the magnetic field performance of the entire magnet and the number of excitation training times, in order to meet the requirements of magnet stability, it is urgent to develop a winding tooling based on cosθ type coil to assist winding. Summary of the Invention

[0006] The purpose of the present invention is to solve the problems in the prior art and to propose a winding tool based on a double-layer cable of a cosθ-type coil. The winding tool opens a wire groove on the frame and uses a placeholder strip in the wire groove to limit the cable insertion position. The storage area exposed by removing a placeholder strip can enable the cable to be wound according to the set method, and is limited by a first limiter so that the cables between each turn are arranged closely and the winding effect is better.

[0007] In order to solve the above problems, the present invention provides the following technical solutions: A winding tool based on a cosθ-type coil double-layer cable, comprising: skeleton; The wire duct is provided on the frame and consists of two curved duct sections and a straight duct section located between the two curved duct sections; A plurality of placeholder strips adapted to the arc shape of the curved slot section and used to flatly fill the slot bottom of the curved slot section, so that when any placeholder strip is removed, the slot bottom can be exposed to form a storage area for accommodating cables; The first limiting member can cover the curved slot section and is used to apply a pressing force to the placeholder strip toward the bottom of the curved slot section.

[0008] As a further solution of the present invention: the first limiting member is movably connected to the skeleton.

[0009] As a further solution of the present invention: the first limiting member includes a baffle with a slotted hole formed thereon, and the slotted hole can be sleeved on the outside of the first screw on the frame to realize the sliding assembly of the baffle, one end of the slotted hole is designed to be flared, and the inner diameter of the flared end is larger than the diameter of the first screw, so that when the flared end is slidably sleeved on the outside of the first screw, the baffle can be removed from the first screw.

[0010] As a further solution of the present invention: a ridge flush with the groove opening of the wire trough is provided in the middle of the bottom of the wire trough to separate the wire trough into two groups of sub-troughs. The two groups of sub-troughs are divided into outer sub-troughs and inner sub-troughs according to their positions on the skeleton. A plurality of placeholder strips are evenly distributed at the bottom of the two sub-troughs, and a notch is provided on the ridge to allow the cables on one of the sub-troughs to transition to the other sub-trough.

[0011] As a further solution of the present invention: the winding tool also includes a pressing belt arranged in the auxiliary groove and abutting the top of the placeholder strip, the sum of the thickness of the pressing belt and the placeholder strip is equal to the groove depth of the auxiliary groove; the baffle is used to apply a pressing force to the pressing belt toward the bottom of the curved groove section.

[0012] As a further solution of the present invention: the winding tool also includes a second limiting member that can cover the straight slot segment and is used to apply a pressing force toward the slot bottom to the cable in the straight slot segment.

[0013] As a further solution of the present invention: the second limiting member includes a baffle and a pressure block with a slotted hole formed thereon. The pressure block is arranged in the straight slot segment and is used to resist the top of the cable. The slotted hole can be mounted on the outside of the second screw on the frame to realize the sliding assembly of the baffle. The baffle can slide onto the straight slot segment to apply a pressing force to the pressure block toward the bottom of the straight slot segment.

[0014] As a further solution of the present invention: an observation hole is provided on the baffle, and a pin for stopping the position of the baffle is provided on the frame.

[0015] The present invention also proposes a winding method based on a winding tool for a double-layer cable with a cosθ-type coil. In the presence of ridges, the wire groove is divided into two groups of sub-grooves. The two groups of sub-grooves are divided into outer sub-grooves and inner sub-grooves according to their positions on the frame. The corresponding number of layers of cable can be wound according to the groove depth of the wire groove. The method includes the following steps: Step 1: According to the position of the wire inlet on the frame, select one of the two winding methods: first the outer auxiliary groove and then the inner auxiliary groove, or first the inner auxiliary groove and then the outer auxiliary groove; Step 2: The winding starts from either the curved slot section or the straight slot section. Starting from a curved slot section of the auxiliary slot, it is necessary to first remove the placeholder strips at the corresponding position in the curved slot section to expose the storage area for the single cable to pass through. The cable is wound on the curved slot section according to the position of the storage area. After the winding of the curved slot section is completed, the cable and the remaining placeholder strips are laid flat on the bottom of the curved slot section. Step 3: Slide the baffle at the curved slot section to cover the cable and the remaining placeholders, applying a pressing force toward the bottom of the slot to maintain the cable and the remaining placeholders in a flat position. Step 4: Since the cable has been positioned in the aforementioned storage area and the straight slot section is located between the two curved slot sections, the subsequent cable will naturally run in the straight slot section. After running, the pressure block at the position of the straight slot section is covered on the cable and the stop bar is slid on the pressure block, so that the stop bar and the pressure block apply a pressing force to the cable toward the bottom of the slot; Step 5: Since the single-turn coil consists of two groups of curved slot segments and two groups of straight slot segments, repeat the above winding work for the curved slot segments and the straight slot segments to wind the remaining group of curved slot segments and the group of straight slot segments, thus completing the winding work of the first turn of the cable. At this time, all the baffles, baffles and pressure blocks on the frame are in a covered and pressed state. Step 6: When continuing to wind the cable, the pressing force on the slot section to be wound must be released first according to the position of the slot section to be wound. After completing the winding of the corresponding position, the pressing force must be applied to the position again. In this way, the multi-turn winding of the cable in the corresponding sub-slot is completed; Step 7: Transfer the cable to another auxiliary groove through the notch on the ridge. The winding method of the cable in this auxiliary groove is the same as above. After winding is completed, it can be passed out from the outlet.

[0016] As a further embodiment of the present invention, when the depth of the defined cable trough is set to accommodate winding of double-layer cables, the incoming and outgoing cables are arranged at the same end of the frame, and four sets of placeholder strips are laid flat in the outer and inner auxiliary troughs, the method includes the following steps: Step 1: Based on the position of the wire inlet on the frame, the winding method of first outer auxiliary groove and then inner auxiliary groove is carried out; Step 2: Starting with the curved section of the outer auxiliary slot near the cable entry, first remove the placeholder strip near the outermost wall of the curved section to expose the storage area for a single cable to pass through. The cable is wound on the curved section according to the location of the storage area. After the winding of the curved section is completed, the cable and the remaining placeholder strips are laid flat on the bottom of the curved section. Step 3: Slide the baffle at the curved slot section to cover the cable and the remaining placeholders, applying a pressing force toward the bottom of the slot to maintain the cable and the remaining placeholders in a flat position. Step 4: Since the cable has been positioned in the aforementioned storage area and the straight slot section is located between the two curved slot sections, the subsequent cable will naturally run in the straight slot section. After running, the pressure block at the position of the straight slot section is covered on the cable and the stop bar is slid on the pressure block, so that the stop bar and the pressure block apply a pressing force to the cable toward the bottom of the slot; Step 5: Since the single-turn coil consists of two groups of curved slot segments and two groups of straight slot segments, repeat the above winding work for the curved slot segments and the straight slot segments to wind the remaining group of curved slot segments and the group of straight slot segments, thus completing the winding work of the first turn of the cable. At this time, all the baffles, baffles and pressure blocks on the frame are in a covered and pressed state. Step 6: Continue winding the cable. First, release the pressure on the slot section according to the position of the winding slot. Then, remove the three sets of placeholders from the outside to the inside and complete the winding of the second turn of cable, the third turn of cable, and the fourth turn of cable in sequence. After completing all the winding work of the outer auxiliary slot, the corresponding pressure should be set on the corresponding slot section. In this way, the cable in the outer auxiliary slot is wound in a reduced diameter form in sequence for four turns. Step 7: Transfer the cable to the inner auxiliary groove through the notch on the ridge. The cable winding method in the inner auxiliary groove is the same as that in the outer auxiliary groove. After the inner auxiliary groove is completed, only the single layer of cable winding in the groove is completed. Step 8: Since the depth of the cable trough is set to accommodate the winding of double-layer cables, the winding method of the inner auxiliary trough first and then the outer auxiliary trough is carried out. The subsequent winding is carried out when there is a single-layer cable at the bottom of the cable trough. The pressure of the baffle and the pressing belt on the curved trough section, and the pressure of the baffle and the pressing block on the straight trough section are released in sequence, so that the notches of the curved trough section and the straight trough section can be exposed in sequence. Due to the support of the skeleton itself, the cable is then wound four turns in the inner auxiliary trough in an expanded diameter form. For the curved trough section, the baffle needs to be used to press after each turn, and for the straight trough section, the baffle needs to be used to press after each turn. Step 9: Transfer the cable through the notch on the ridge and pass it into the outer auxiliary groove. Due to the support of the ridge itself, the cable is then wound four turns in the outer auxiliary groove in an expanded diameter form. For the curved groove section, a baffle is used to press after each turn. For the straight groove section, a baffle is used to press after each turn. Step 10: After completing the winding of the cables in the outer auxiliary slot, pass the cables out from the outlet to complete the winding work.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention achieves precise control of the cable position by filling the curved groove section with a placeholder strip. When in use, a single placeholder strip can be removed to expose the storage area, so that the cable can be accurately positioned in the curved section with complex curvature; the continuous pressing of the placeholder strip by the first limiter effectively prevents the cable from shifting or loosening during the winding process, and the cables are arranged tightly between each turn, thereby improving the winding accuracy and coil forming quality.

[0018] 2. The first screw, the second screw, the pin, the column nail, the baffle and the baffle bar are all set to be detachable. After completing the corresponding winding work, the above components can be removed so that the saddle-shaped coil is composed of only the skeleton and the saddle-shaped cable. The saddle-shaped cable is attached to the skeleton. The skeleton can be installed in the corresponding position for use later. There is no need to remove the saddle-shaped cable for use. The use method is convenient and flexible.

[0019] 3. The design of the movable connection between the first limiter and the frame greatly improves the operational flexibility. The limiter can be quickly adjusted or removed during use to meet the needs of different winding stages. It is also convenient for maintenance and replacement of parts, simplifying the use process of the entire tooling.

[0020] 4. The slotted hole flaring design of the baffle enables efficient assembly and disassembly. During sliding assembly, the size of the flared end matches the screw, allowing the baffle to be installed and removed with one hand. The slotted hole structure takes into account both positioning stability and operational convenience, improving work efficiency.

[0021] 5. The rib-separated dual-slot structure optimizes space utilization, dividing the trough into inner and outer sub-slots, supporting independent layered winding. The notch design allows for smooth transitions between cables across the trough, preventing bending damage. The evenly spaced spacers ensure consistent winding accuracy across each sub-slot. The ribs effectively divide a single, larger-width trough into two smaller-width sub-slots. The smaller-width sub-slots accommodate fewer turns of cable, allowing cables to be arranged closely together for optimal winding results.

[0022] 6. The pressing belt design is adapted to the requirements of double-layer winding. The sum of the thickness of the pressing belt and the placeholder strip is equal to the groove depth, providing a flat base surface for the second layer of cables. The baffle directly presses the pressing belt to form a double limit to ensure the stability and density of the double-layer cable structure.

[0023] 7. The second limiter fills the blind spot of the straight section control. By covering the straight slot section and applying corresponding pressure, it forms a complete pressing system with the curved section limiter to ensure that the cables in the entire slot section are not loose, eliminating the defect of easy deviation of the straight section of traditional tooling.

[0024] 8. The retaining bar can be quickly positioned by sliding the assembly through the slot, and the pressure block directly contacts the cable to disperse the pressure; the split structure simplifies the assembly process while ensuring that the straight section of the cable is evenly compressed.

[0025] 9. The baffle opening facilitates real-time monitoring of cable status and prevents winding defects; the pins provide mechanical stops to prevent the baffle from accidentally slipping during the pressing process, ensuring the stability of the tooling.

[0026] 10. Winding method: Establish a standardized winding process: A step-by-step operation (extraction of placeholder strips → pressing → transfer across slots) enables controllable winding of complex paths; dynamic pressing management (immediate pressure after winding and release before new winding) ensures that each turn of cable is fixed in position; the reduced-diameter winding strategy maximizes the use of slot space by gradually removing placeholder strips.

[0027] 11. When winding double-layer cables is limited, this winding method adopts a layered strategy of "winding a single layer from the outside to the inside with reduced diameter, then winding a double layer with expanded diameter in the opposite direction" to avoid cable interference; innovative use of the physical support of the skeleton and ridges to achieve expanded diameter winding, breaking through the traditional single-layer limitation; the same-side design of the input / output lines simplifies end processing and improves compatibility.

[0028] 12. The present application can change the starting position of cable winding by widening the curved slot section or adding a side slot. When widening the curved slot section is selected, the curved slot section is used as the starting winding position; when adding a side slot is selected, the straight slot section is used as the starting winding position. The two different winding methods can be adaptively selected by the user according to corresponding needs, further broadening the scope of application of this tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described below with reference to the accompanying drawings.

[0030] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention Figure 1 ; Figure 2 yes Figure 1 A schematic diagram of the front structure of FIG. Figure 3 yes Figure 1 Schematic diagram of the top view structure; Figure 4 yes Figure 1 Schematic diagram of the exploded structure of the state; Figure 5 This is a schematic diagram of the structure of the frame part and the wire trough thereon of the present invention; Figure 6 It is a partial cross-sectional structural schematic diagram of the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of the baffle in the present invention Figure 1 ; Figure 8 This is a schematic diagram of the three-dimensional structure of the baffle in the present invention Figure 2 ; Figure 9 This is a schematic diagram of the three-dimensional structure of the baffle in the present invention; Figure 10 This is a schematic diagram of the cable structure after winding according to the present invention; Figure 11 It is a schematic diagram of the three-dimensional structure of the skeleton and cables in the present invention; Figure 12 It is a schematic diagram of the structure of the jumper from the lower cable to the upper cable in the present invention; Figure 13 This is a schematic diagram of the structure of the jumper from the cable in the outer auxiliary slot to the inner auxiliary slot in the present invention; Figure 14 This is a schematic diagram of the three-dimensional structure of the present invention Figure 2 ; Figure 15 yes Figure 14 Schematic diagram of the enlarged structure at A in the middle; Figure 16 This is a schematic diagram of the three-dimensional structure of the present invention Figure 3 .

[0031] In the figure: 1. Skeleton; 2. Cable duct; 201. Curved trough section; 202. Straight trough section; 3. Placeholder strip; 4. Baffle; 5. First screw; 6. Ridge; 601. Notch; 7. Outer auxiliary groove; 8. Inner auxiliary groove; 9. Pressing belt; 10. Baffle; 11. Pressing block; 12. Second screw; 13. Observation hole; 14. Pin; 15. First groove; 16. Second groove; 17. Side groove; a. Inlet and outlet positions; b. Upper cables; c. Lower cables; d. Storage area. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0033] Example 1: like Figures 1-16 As shown, a winding tool based on a double-layer cable of a cosθ-type coil includes a skeleton 1. The skeleton 1 is selected to be cylindrical, and cosθ-shaped (or saddle-shaped) wire grooves 2 are opened at the upper and lower positions of the skeleton 1. As can be seen from the above, the saddle-shaped coil to be wound is composed of curved sections at both ends and a straight section in the middle. Therefore, the wire groove 2 is correspondingly composed of two curved slot sections 201 and a straight slot section 202 located between the two curved slot sections 201. The number of the curved slot sections 201 and the number of the straight slot sections 202 are both two groups.

[0034] At the same time, the winding tool also includes a plurality of placeholders 3 adapted to the curved slot section 201 arc, and the plurality of placeholders 3 fill the bottom of the curved slot section 201 in a flat manner. This state can be Figure 14 and Figure 15 To express, Figure 14 The figure only shows the placement of multiple placeholder strips 3 within the curved slot section 201 on the right. To ensure that the multiple placeholder strips 3 are stably laid flat within the slot bottom, the winding tool also includes a first stopper. The first stopper is used to cover the notch of the curved slot section 201 and apply a pressing force toward the slot bottom to the curved slot section 201 to limit the position of the placeholder strips 3 within the curved slot section 201, thereby ensuring that the multiple placeholder strips 3 are stably laid flat. It should be noted that the size of the placeholder strips 3 is compatible with the diameter of the cables to be subsequently threaded.

[0035] Based on the combined design of the above-mentioned skeleton 1, the wire trough 2 opened on the skeleton 1, the multiple placeholder strips 3 placed in the wire trough 2 and the first limiting member, the use process of this application is: according to the position of the wire inlet on the skeleton 1, one end of the cable is passed through the wire inlet and then into the nearest curved trough section 201 or straight trough section 202, and then the corresponding threading work is performed in turn according to the groove shape of the wire trough 2 until all the winding work of the wire trough 2 is completed, and the cable can be passed out from the wire outlet. Among them, when the cable entry is close to the curved slot section 201, before the cable enters the nearest curved slot section 201, it is necessary to first release the covering and pressing state of the first limiting member on the curved slot section 201, and then remove a placeholder strip 3 at the corresponding position in the curved slot section 201 according to the position where the cable is to be passed through, so that the bottom of the slot is exposed to form a storage area for accommodating and passing the cable. The subsequent cables will be passed through the storage area. In the presence of the remaining placeholder strips 3, the cable replaces the removed placeholder strip 3, so that the position of the cable at the bottom of the slot will be stably maintained. At the same time, the first limiting member covers the curved slot section 201 again to suppress the flat state formed by the cable and the remaining placeholder strips 3. When the cable entry is close to the straight slot section 202, the cable can be directly passed through the straight slot section 202 until it reaches the curved slot section 201. At this time, the cable passing work in the curved slot section 201 is the same as described above.

[0036] The present application first divides the cable trough 2 into a curved trough section 201 and a straight trough section 202 according to the trough shape. Based on the defects of the curved trough section 201 in actual winding work, a plurality of placeholders 3 are then set in a flat state in the divided curved trough section 201. The placeholders 3 at the corresponding position are taken out according to the position where the cable is to be wound, so that the cable replaces the taken out placeholders 3, and the bottom of the curved trough section 201 is filled with the remaining placeholders 3 in a flat state, ensuring that the corresponding position of the cable in the curved trough section 201 can be stably maintained, facilitating the subsequent cable threading and movement, and the cable fits tightly to the skeleton 1, and the cables can be arranged closely together, so that the overall structure of the wound coil is stable.

[0037] Regarding the installation setting of the first limiter on the skeleton 1 mentioned above, the first limiter can be installed on the skeleton 1 using any movable connection installation method and can cover the curved groove section 201. For example, the first limiter can be selected from several methods such as buckling, clamping, bonding, threaded connection, plug-in, hinged, and sliding connection.

[0038] like Figure 5-Figure 8As shown, this article preferably installs the first limiting member on the frame 1 in a sliding connection manner. Specifically, the first limiting member includes a baffle 4, a slotted hole is opened in the middle position of the baffle 4, and two sets of first grooves 15 are opened on the side positions. The baffle 4 is sleeved on the outside of the first screw 5 by means of the slotted hole to realize the sliding assembly of the baffle 4. The sliding path of the baffle 4 covers the curved groove section 201. Under normal circumstances, the baffle 4 covers the curved groove section 201 to apply a pressing force to the multiple placeholder strips 3. The frame 1 is provided with a pin 14 for contacting the first groove 15 to ensure that the covering state of the baffle 4 is stably maintained. This state can be controlled by Figure 5 When it is necessary to release the cover and pressure of the baffle 4 on the curved slot section 201, the baffle 4 can be slid away from the curved slot section 201 to expose the multiple placeholders 3 in the curved slot section 201. Figure 5 Taking the state shown as an example, when it is necessary to release the covering and pressing of the left baffle 4 on the curved slot section 201 , the baffle 4 can be slid axially to the right along the skeleton 1 .

[0039] Due to the size and layout limitations of the frame 1 and the baffle 4, the sliding track of the baffle 4 may not meet the requirement of exposing the curved slot section 201. Therefore, in order to prevent such a situation from occurring, Figure 7-Figure 8 As shown, the present application has one end of the slot hole expanded, and the inner diameter of the expanded end is larger than the diameter of the first screw 5. When the baffle 4 covers the curved slot section 201, the other end of the slot hole conflicts with the first screw 5. Figure 5 Taking the case shown as an example, when the baffle 4 is slid to the right along the axial direction of the frame 1, the flared end of the slot can be moved to the outside of the first screw 5. At this time, even if the baffle 4 does not partially or completely open the curved slot section 201, the baffle 4 can be removed from the first screw 5 due to the design that the inner diameter of the flared end is larger than the diameter of the first screw 5, that is, the baffle 4 is no longer covering the curved slot section 201, and the multiple placeholder strips 3 in the curved slot section 201 are exposed. At the same time, as shown in the example Figure 7-Figure 8 As shown, when the baffle 4 covers and presses the curved slot section 201 , an observation hole 13 may be provided on the baffle 4 so that the staff can observe the status of the cables and the placeholder strip 3 in the curved slot section 201 .

[0040] like Figures 1-6 As shown, further, when the wound cable has multiple turns, for example eight turns, the width of the wire trough 2 on the frame 1 also needs to be adapted to accommodate the cross-sectional diameter of the eight turns of cable. When the cable is wound in the wire trough 2 in the form of eight turns, the large number of turns may cause the cables to be arranged loosely and not tightly. In order to meet the winding requirements of different coils or improve the winding effect, the present application improves the design of the wire trough 2. The details are as follows: A ridge 6 is provided at the middle of the bottom of the wire trough 2. The ridge 6 is flush with the notch of the wire trough 2. The ridge 6 can be manufactured as an integral part of the wire trough 2, or it can be added after the wire trough 2 already exists. There are many ways to set the ridge 6, which will not be described in detail in this article. The presence of this ridge 6 in the wire trough 2 will divide the wire trough 2 into two groups of sub-troughs. The two groups of sub-troughs are divided into outer sub-troughs 7 and inner sub-troughs 8 according to their different positions on the frame 1. The layout of the outer sub-troughs 7 and inner sub-troughs 8 can be determined by Figure 5 Therefore, with the design of the outer and inner auxiliary slots 7 and 8, the multiple placeholders 3 originally located within the wire trough 2 are evenly distributed within the outer and inner auxiliary slots 7 and 8. The presence of the ridges 6 is equivalent to dividing the single set of larger-width wire troughs 2 into two sets of smaller-width auxiliary slots. The smaller-width auxiliary slots can accommodate fewer turns of cable, allowing the cables to be arranged closely together, achieving better winding results. The ridges 6 also prevent stress accumulation in the magnet.

[0041] like Figure 4 As shown, under the premise of the existence of the ridge 6, a corresponding notch 601 needs to be opened on the ridge 6. The notch 601 is used for allowing the cables in the outer sub-groove 7 to jumper into the inner sub-groove 8, or for allowing the cables in the inner sub-groove 8 to jumper into the outer sub-groove 7, so as to complete the entire cable winding work in the direction of the width of the cable groove 2.

[0042] Based on the existence of the ridge 6, there are outer auxiliary grooves 7 and inner auxiliary grooves 8. According to the position of the cable inlet on the frame 1 (or the starting position of the cable winding), there are two winding methods: (1) First wind the outer auxiliary slot 7 and then wind the inner auxiliary slot 8; (2) Wind the inner auxiliary slot 8 first and then the outer auxiliary slot 7.

[0043] For example, when the starting position of the wire entering the winding is located in the middle of the skeleton 1, the second winding method can be selected; when the starting position of the wire entering the winding is located at the end position of the skeleton 1, the first winding method can be selected.

[0044] Since the depth of the cable trough 2 is set according to the number of layers of cables to be wound, Figure 10 As shown, when the number of cable layers to be wound is two, it is Figure 10For c (lower layer cables) and b (upper layer cables), the depth of the cable trough 2 is set to twice the cable diameter. Based on this size of the trough depth design, the present application also includes a pressing belt 9 that is compatible with the shape of the secondary trough. The pressing belt 9 is used to be placed in the secondary trough and abut against the tops of multiple placeholder strips 3. The thickness of the pressing belt 9 is equal to the diameter of the cable. Therefore, the sum of the thickness of the pressing belt 9 and the placeholder strips 3 is equal to the depth of the cable trough 2. When the first limiting member covers the curved trough section 201, it will abut against the pressing belt 9 and apply a compressive force to the pressing belt 9 toward the bottom of the curved trough section 201.

[0045] At the same time, on the basis of providing the above-mentioned first limiting member for covering and pressing the curved slot section 201, in order to also limit and press the cables in the straight slot section 202, the present application further provides a second limiting member, which is movably provided on the frame 1 and is used to press the cables in the straight slot section 202. During use, when the cable is passed through the straight slot section 202, the pressing force of the second limiting member on the straight slot section 202 is released in advance. After the cable is passed through the straight slot section 202, the second limiting member is used to apply a pressing force to the straight slot section 202 to press and limit the cables in the straight slot section 202, further ensuring the tight arrangement of the saddle-shaped coil cable.

[0046] Specifically, the second limiting member includes a baffle 10 and a pressure block 11. A slot is provided in the middle of the baffle 10. The baffle 10 is movably sleeved on the outside of the second screw 12 of the frame 1 by means of the slot to realize the sliding assembly of the baffle 10. The pressure block 11 is used to be placed in the corresponding straight groove section 202 to suppress the cable in the straight groove section 202. The sliding path of the baffle 10 can cover the straight groove section 202. When the pressure block 11 is placed in the straight groove section 202, the baffle 10 can apply a pressing force to the pressure block 11. This pressing state can be controlled by Figure 5 To express it. Figure 9 As shown, in order to ensure that this state is maintained stably, the present application provides a second groove 16 on the baffle 10, and correspondingly, a column nail is provided on the frame 1, which is used to abut against the second groove 16, so that the pressing state of the baffle 10 can be maintained stably to prevent interference caused by the subsequent cable movement.

[0047] Example 2: A winding method based on a winding tool for a cosθ-type coil double-layer cable is described. In the presence of the ridge 6, the wire groove 2 is divided into two groups of auxiliary grooves. The two groups of auxiliary grooves are divided into outer auxiliary grooves 7 and inner auxiliary grooves 8 according to their positions on the frame 1. The depth of the wire groove 2 can be used to wind a corresponding number of layers of cable. The method specifically includes the following steps: Step 1: According to the position of the wire inlet on the frame 1, select one of the two winding methods: "outer auxiliary slot 7 first, then inner auxiliary slot 8" or "inner auxiliary slot 8 first, then outer auxiliary slot 7"; Step 2: After selecting the corresponding winding method, according to the principle of proximity, select one of the curved slot sections 201 or straight slot sections 202 that are close to the cable entry. If a curved slot section 201 of the auxiliary slot is closest to the cable entry, start with the curved slot section 201 and first remove the placeholder strip 3 at the corresponding position in the curved slot section 201 to expose the storage area for a single cable to pass through. The cable is wound on the curved slot section 201 according to the position of the storage area. After the winding of the curved slot section 201 is completed, the cable and the remaining placeholder strips 3 are laid flat on the bottom of the curved slot section 201. Step 3: Slide the baffle 4 at the position of the curved slot section 201 to cover the cable and the remaining placeholders 3 to apply a pressing force toward the bottom of the slot, so that the cable and the remaining placeholders 3 are kept flat; Step 4: Since the cable has been restricted in position by the aforementioned storage area and the straight slot section 202 is located between the two curved slot sections 201, the subsequent cable movement position will be restricted, that is, it will naturally move to the corresponding position within the straight slot section 202. After the movement is completed, the pressure block 11 at the position of the straight slot section 202 is covered on the cable and the stop bar 10 is slid on the pressure block 11, so that the stop bar 10 and the pressure block 11 apply a pressing force to the cable toward the bottom of the slot; Step 5: Since the single-turn coil is composed of two groups of curved slot segments 201 and two groups of straight slot segments 202, the above winding process for the curved slot segments 201 and the straight slot segments 202 is repeated to wind the remaining group of curved slot segments 201 and the remaining group of straight slot segments 202, thus completing the winding process of the single-turn cable. After that, the baffles 4, baffles 10, and pressing blocks 11 on the frame 1 are all in a covered and pressed state. Step 6: Continue winding the cable. The pressing force on the slot section to be wound must be released first according to the position of the slot section to be wound. After completing the winding at the corresponding position, the pressing force must be applied to the position again. In this way, the multi-turn winding of the cable in the corresponding sub-slot is completed. Step 7: After the above-mentioned auxiliary slot is wound, the cable jumper is passed through the notch 601 on the ridge 6 to another auxiliary slot. The winding method of the cable in this auxiliary slot is the same as above. After winding is completed, it can be passed out from the outlet.

[0048] Example 3: Furthermore, based on the above method, the present application defines that the depth of the wire trough 2 is set to accommodate the winding of double-layer cables, the incoming and outgoing wires are arranged at the same end of the frame 1, and four sets of placeholders 3 are laid flat in the outer auxiliary groove 7 and the inner auxiliary groove 8, and the positions of the incoming and outgoing wires can be determined by Figure 5In this case, the method includes the following steps: Step 1: Based on the position of the wire inlet on the frame 1, the winding method of first winding the outer auxiliary groove 7 and then the inner auxiliary groove 8 is carried out; Step 2: Starting from the curved slot section 201 of the outer auxiliary slot 7 close to the wire inlet, first Figure 5 From a viewing angle, the placeholder strip 3 near the outermost wall of the curved slot section 201 on the left is removed to expose a storage area for a single cable to pass through. The cable is wound on the curved slot section 201 according to the position of the storage area. After the winding of the curved slot section 201 is completed, the cable and the remaining placeholder strips 3 are laid flat on the bottom of the curved slot section 201. It should be noted that when the curved slot section 201 is used as the starting position, since the cable winding method is "gradually reducing the diameter", the slot width of the curved slot section 201 needs to be additionally widened. The optimal widening data is equal to the diameter of the cable to meet the requirement that the cable uses it as the starting position. Step 3: Slide the baffle 4 at the position of the curved slot section 201 to cover the cable and the remaining placeholders 3 to apply a pressing force toward the bottom of the slot, so that the cable and the remaining placeholders 3 are kept flat; Step 4: Since the cable has been positioned in the aforementioned storage area and the straight slot section 202 is located between the two curved slot sections 201, the subsequent cable will naturally run in the straight slot section 202. After running, the pressure block 11 at the position of the straight slot section 202 is covered on the cable and the stop bar 10 is slid on the pressure block 11, so that the stop bar 10 and the pressure block 11 apply a pressing force to the cable toward the bottom of the slot; Step 5: Since the single-turn coil is composed of two groups of curved slot segments 201 and two groups of straight slot segments 202, the above Figure 5 The left curved slot section 201 and the front straight slot section 202 are wound from the perspective, and the above winding work of the curved slot section 201 and the straight slot section 202 is repeated to wind the right curved slot section 201 and the back straight slot section 202, thereby completing the winding work of the first turn of the cable, and then making all the baffles 4 and the baffles 10 on the skeleton 1 in a covered and pressed state. It should be noted that the winding of the right curved slot section 201 in this step is the same as that of the left curved slot section 201. Taking the specific winding of the right curved slot section 201 as an example: first, the right curved slot section 201 (with Figure 14 The placeholder strip 3 near the outermost wall is removed to expose a storage area for a single cable to pass through. Figure 15 d in the figure indicates that the cable is threaded and wound on the curved slot section 201 according to the location of the storage area; Step 6: Continue winding the cable. According to the position of the winding slot, you need to release the pressure on it first, and then take it out from the outside to the inside ( Figure 15 The three sets of placeholders 3 (arrows in the lower middle position) are used to complete the winding of the second, third, and fourth turns of the cable in sequence. After completing all the winding work of the outer auxiliary slot 7, the corresponding pressing force needs to be set on the corresponding slot section. In this way, the cable in the outer auxiliary slot 7 is wound in four turns in a reduced diameter form in sequence. Step 7: Transfer the cable to the inner auxiliary groove 8 through the notch 601 on the ridge 6. The winding method of the cable in the inner auxiliary groove 8 is the same as that of the outer auxiliary groove 7. The winding order of the four turns of cable can be as follows: Figure 15 The arrow in the upper middle position indicates that after the inner auxiliary groove 8 is wound, only the winding of the single layer cable in the wire groove 2 is completed. Figure 10 From the perspective of the cable, the single-layer cable can be represented by c; Step 8: Since the depth of the cable trough 2 is set to accommodate the winding of double-layer cables, the inner auxiliary groove 8 and the outer auxiliary groove 7 are wound first. The subsequent winding is carried out when there is a single-layer cable at the bottom of the cable trough 2. The pressing of the baffle 4 and the pressing belt 9 on the curved slot section 201 and the pressing of the baffle 10 and the pressing block 11 on the straight slot section 202 are released in sequence, and the notches of the curved slot section 201 and the straight slot section 202 are exposed in sequence. Due to the supporting effect of the skeleton 1 itself, the cable is then expanded in the form of expansion (the expansion direction is the same as the expansion direction). Figure 15 (the arrows in the upper middle section point in the opposite direction) four turns of winding are completed in sequence in the inner auxiliary slot 8. For the curved slot section 201, the baffle 4 needs to be used to press after each turn of winding. For the straight slot section 202, the baffle 10 needs to be used to press after each turn of winding. Step 9: The cable is transferred through the notch 601 on the ridge 6 and passed into the outer auxiliary groove 7. Due to the support of the ridge 6 itself, the cable is then expanded in diameter (the expansion direction is the same as the Figure 15 (The arrows in the lower middle section point in the opposite direction) Four turns of winding are completed in sequence in the outer auxiliary slot 7. For the curved slot section 201, the baffle 4 needs to be used to press after each turn of winding. For the straight slot section 202, the baffle 10 needs to be used to press after each turn of winding. Step 10: After completing four turns of the cable in the outer auxiliary slot 7, the cable is passed through the outlet to complete the winding work.

[0049] After the coil is wound, the subsequent coil production steps such as coil pre-tightening and bundling, heat treatment, and epoxy impregnation can be carried out.

[0050] It should be noted that the first screw 5, the second screw 12, the pin 14, the column nail, the baffle 4 and the baffle 10 in this application are all set to be detachable. After completing the corresponding winding work, the above-mentioned components can be removed so that the obtained saddle-type coil is composed of only the skeleton 1 and the saddle-type cable. The saddle-type cable is attached to the skeleton 1. Subsequently, the skeleton 1 can be installed in the corresponding position for use without the need to remove the saddle-type cable for use.

[0051] The number of cable layers that the winding tool of the present application is designed to wind can be any number and can be set according to actual needs. The winding method will be adaptively matched according to the number of layers wound.

[0052] Example 4: like Figure 10-13 As shown, the difference between this embodiment and the third embodiment is that a side groove 17 is provided near the end of the frame 1, and one end of the side groove 17 is connected to the line entry position, and the other end of the side groove 17 is connected to the outer auxiliary groove 7, so that Figure 5 From the perspective shown, the cable enters from the entry position in advance, and then reaches the straight slot section 202 through the side slot 17. That is, the straight slot section 202 at this time serves as the starting winding position.

[0053] Therefore, based on the position design of the side groove 17, the winding method of this embodiment is different from that of the third embodiment, and its starting winding position will be different. Specifically, the cable is first passed from the entry position into the side groove 17 until it enters the straight groove section 202. At this time, the starting winding position of the cable is the straight groove section 202, and the subsequent winding work is the same as above.

[0054] This embodiment changes the starting winding position of the cable entering the line position through the design of the side groove 17. Compared with the third embodiment, this embodiment only changes the starting position of the cable winding from the curved groove section 201 to the straight groove section 202. The two different winding starting positions can be selected according to actual conditions, and this application is not limited to this.

[0055] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A winding tool based on a cosθ-type coil double-layer cable, characterized in that: include: Skeleton (1); A wire trough (2) is provided on the frame (1) and is composed of two curved trough sections (201) and a straight trough section (202) located between the two curved trough sections (201); A plurality of placeholder strips (3) adapted to the arc shape of the curved slot section (201) and used to flatly fill the bottom of the curved slot section (201), so that when any placeholder strip (3) is removed, the bottom of the slot can be exposed to form a storage area for accommodating cables; The first limiting member can cover the curved groove section (201) and is used to apply a pressing force to the placeholder strip (3) toward the bottom of the curved groove section (201).

2. A winding tool based on a cosθ-type coil double-layer cable according to claim 1, characterized in that: The first limiting member is movably connected to the frame (1).

3. A winding tool based on a cosθ-type coil double-layer cable according to claim 2, characterized in that: The first limiting member includes a baffle (4) having a slotted hole formed thereon, the slotted hole being capable of being sleeved onto the outside of a first screw (5) on the frame (1) to achieve sliding assembly of the baffle (4), one end of the slotted hole being flared, and the inner diameter of the flared end being larger than the diameter of the first screw (5), so that when the flared end is slidably sleeved onto the outside of the first screw (5), the baffle (4) can be removed from the first screw (5).

4. A winding tool based on a cosθ-type coil double-layer cable according to any one of claims 1 to 3, characterized in that: A ridge (6) flush with the groove opening of the wire trough (2) is provided at the middle position of the bottom of the wire trough (2) to separate the wire trough (2) into two groups of sub-troughs. The two groups of sub-troughs are divided into an outer sub-trough (7) and an inner sub-trough (8) according to their different positions on the frame (1). A plurality of placeholder strips (3) are evenly distributed at the bottom of the two sub-troughs. A notch (601) is provided on the ridge (6) to allow the cables on one of the sub-troughs to transition to the other sub-trough.

5. The winding tool based on the cosθ type coil double-layer cable according to claim 3, characterized in that: The winding tool also includes a pressing belt (9) arranged in the auxiliary groove and abutting against the top of the placeholder strip (3), wherein the sum of the thickness of the pressing belt (9) and the placeholder strip (3) is equal to the groove depth of the auxiliary groove; and the baffle (4) is used to apply a pressing force to the pressing belt (9) toward the groove bottom of the curved groove section (201).

6. A winding tool based on a cosθ-type coil double-layer cable according to claim 4, characterized in that: The winding tool further comprises a second limiting member which can cover the straight slot section (202) and is used to apply a pressing force towards the slot bottom to the cable in the straight slot section (202).

7. A winding tool based on a cosθ-type coil double-layer cable according to claim 6, characterized in that: The second limiting member includes a stopper (10) with a slotted hole formed thereon and a pressure block (11), the pressure block (11) being arranged in the straight slot section (202) and being used to abut against the top of the cable, the slotted hole being sleeved on the outside of the second screw (12) on the frame (1) to achieve sliding assembly of the stopper (10), the stopper (10) being able to slide onto the straight slot section (202) to apply a pressing force on the pressure block (11) toward the bottom of the straight slot section (202).

8. The winding tool based on the cosθ type coil double-layer cable according to claim 3, characterized in that: An observation hole (13) is provided on the baffle (4), and a pin (14) for stopping the position of the baffle (4) is provided on the frame (1).

9. A winding method using a winding tool based on a cosθ-type coil double-layer cable according to any one of claims 1 to 8, characterized in that: In the presence of the ridges (6), the wire trough (2) is divided into two groups of auxiliary troughs. The two groups of auxiliary troughs are divided into outer auxiliary troughs (7) and inner auxiliary troughs (8) according to their positions on the frame (1). A corresponding number of layers of cables can be wound according to the depth of the wire trough (2). The method comprises the following steps: Step 1: According to the position of the wire inlet on the frame (1), one of the two winding methods is selected in advance: first the outer auxiliary groove (7) and then the inner auxiliary groove (8) or first the inner auxiliary groove (8) and then the outer auxiliary groove (7); Step 2: The winding starts from one of the curved slot section (201) and the straight slot section (202), and a curved slot section (201) of the auxiliary slot is selected as the starting point. It is necessary to first remove the placeholder strip (3) at the corresponding position in the curved slot section (201) to expose the storage area for a single cable to pass through. The cable is wound on the curved slot section (201) according to the position of the storage area. After the winding of the curved slot section (201) is completed, the cable and the remaining placeholder strips (3) are laid flat on the bottom of the curved slot section (201); Step 3: Then slide the baffle (4) at the position of the curved groove section (201) so that it covers the cable and the remaining placeholders (3) to apply a pressing force toward the bottom of the groove, so that the cable and the remaining placeholders (3) are kept flat; Step 4: Since the cable has been restricted in position by the aforementioned storage area, and the straight slot section (202) is located between the two curved slot sections (201), the subsequent cable will naturally run in the straight slot section (202). After the running is completed, the pressure block (11) at the position of the straight slot section (202) is covered on the cable and the stop bar (10) is slid on the pressure block (11), so that the stop bar (10) and the pressure block (11) apply a pressing force toward the bottom of the slot to the cable; Step 5: Since the single-turn coil is composed of two groups of curved slot segments (201) and two groups of straight slot segments (202), the above-mentioned winding work of the curved slot segments (201) and the straight slot segments (202) is repeated, and the remaining group of curved slot segments (201) and the group of straight slot segments (202) can be wound, that is, the winding work of the first turn of the cable is completed. At this time, the baffles (4), baffles (10) and pressing blocks (11) on the skeleton (1) are all in a covered and pressed state; Step 6: When continuing to wind the cable, the pressing force on the slot section to be wound must be released first according to the position of the slot section to be wound. After completing the winding of the corresponding position, the pressing force must be applied to the position again. In this way, the multi-turn winding of the cable in the corresponding sub-slot is completed; Step 7: The cable is transferred to another auxiliary groove through the notch (601) on the ridge (6). The winding method of the cable in the auxiliary groove is the same as above. After the winding is completed, the cable can be passed through the outlet.

10. A winding method based on a winding tool for a cosθ-type coil double-layer cable according to claim 9, characterized in that: When the depth of the defined wire trough (2) is set to accommodate winding double-layer cables, the incoming wires and the outgoing wires are both arranged at the same end of the frame (1), and four sets of placeholder strips (3) are laid flat in the outer auxiliary trough (7) and the inner auxiliary trough (8), the method comprises the following steps: Step 1: Based on the position of the wire inlet on the frame (1), the outer auxiliary groove (7) is wound first and then the inner auxiliary groove (8); Step 2: Starting from the curved groove section (201) of the outer auxiliary groove (7) near the wire entry port, the placeholder strip (3) near the outermost wall of the curved groove section (201) is first removed to expose a storage area for a single cable to pass through. The cable is wound on the curved groove section (201) according to the position of the storage area. After the curved groove section (201) is wound, the cable and the remaining placeholder strips (3) are laid flat on the bottom of the curved groove section (201); Step 3: Then slide the baffle (4) at the position of the curved groove section (201) so that it covers the cable and the remaining placeholders (3) to apply a pressing force toward the bottom of the groove, so that the cable and the remaining placeholders (3) are kept flat; Step 4: Since the cable has been restricted in position by the aforementioned storage area, and the straight slot section (202) is located between the two curved slot sections (201), the subsequent cable will naturally run in the straight slot section (202). After the running is completed, the pressure block (11) at the position of the straight slot section (202) is covered on the cable and the stop bar (10) is slid on the pressure block (11), so that the stop bar (10) and the pressure block (11) apply a pressing force toward the bottom of the slot to the cable; Step 5: Since the single-turn coil is composed of two groups of curved slot segments (201) and two groups of straight slot segments (202), the above-mentioned winding work of the curved slot segments (201) and the straight slot segments (202) is repeated, and the remaining group of curved slot segments (201) and the group of straight slot segments (202) can be wound, that is, the winding work of the first turn of the cable is completed. At this time, the baffles (4), baffles (10) and pressing blocks (11) on the skeleton (1) are all in a covered and pressed state; Step 6: Continue winding the cable. First, release the pressing force on the slot section to be wound according to the position of the slot section to be wound. Then, take out the three sets of placeholders (3) from the outside to the inside and complete the winding of the second turn of cable, the third turn of cable and the fourth turn of cable in sequence. After completing all the winding work of the outer auxiliary slot (7), the corresponding pressing force needs to be set on the corresponding slot section. In this way, the cable in the outer auxiliary slot (7) is wound in four turns in a reduced diameter form in sequence. Step 7: The cable is transferred through the notch (601) on the ridge (6) and passed through the inner auxiliary groove (8). The winding method of the cable in the inner auxiliary groove (8) is the same as that of the outer auxiliary groove (7); After the winding of the inner auxiliary slot (8) is completed, only the winding of the single-layer cable in the cable slot (2) is completed; Step eight: Since the depth of the cable trough (2) is set to accommodate the winding of double-layer cables, the winding method of first the inner auxiliary trough (8) and then the outer auxiliary trough (7) is carried out. The subsequent winding is carried out when a single-layer cable already exists at the bottom of the cable trough (2). The pressing of the baffle (4) and the pressing belt (9) on the curved trough section (201) and the pressing of the baffle (10) and the pressing block (11) on the straight trough section (202) are released in sequence, so that the notches of the curved trough section (201) and the straight trough section (202) can be exposed in sequence. Due to the supporting effect of the skeleton (1) itself, the cable is then wound four turns in the inner auxiliary trough (8) in an expanded diameter form. For the curved trough section (201), the baffle (4) needs to be used to press after each turn of winding. For the straight trough section (202), the baffle (10) needs to be used to press after each turn of winding. Step nine: The cable is transferred through the notch (601) on the ridge (6) and passed into the outer auxiliary groove (7). Due to the supporting effect of the ridge (6), the cable is then wound four turns in the outer auxiliary groove (7) in an expanded diameter form. For the curved groove section (201), each turn needs to be pressed by the baffle (4). For the straight groove section (202), each turn needs to be pressed by the baffle (10). Step 10: After the cable is wound around the outer auxiliary groove (7), the cable is passed through the outlet to complete the winding work.

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