A coil automatic winding device

Abstract

The application discloses a kind of automatic winding device of coil, including clamping unit, the skeleton is clamped and fixed, and make skeleton rotate along its circumferential direction;Displacement control unit, the movement of metal wire to be wound in three-dimensional space is controlled by displacement control unit;Tension control unit, the metal wire to be wound is connected with displacement control unit by passing through tension control system;When using the automatic winding device, the skeleton is fixed on the clamping unit, and the metal wire to be wound is wound on the skeleton by displacement control unit.The device realizes the automatic winding of coil, reaches the standardization of coil winding process, intelligent, not only improves the inductive coil winding efficiency, also improves the stability and consistency of product.

Description

Technical Field

[0001] This invention belongs to the field of well logging instrument and equipment manufacturing technology, and relates to an automatic coil winding device. Background Technology

[0002] Array induction instruments are among the most commonly used electrical logging instruments. The coil, as the core component of an array induction instrument, directly determines the quality of the instrument's measurement signal through its design and manufacturing quality. Currently, complex coils are still wound manually. Manual winding presents the following problems: 1) The coil winding process requires manual zero-point alignment. For complex and multi-type coils, this can easily lead to reverse winding or inconsistencies in coils wound by different personnel, affecting coil performance. 2) Precise control of winding tension is impossible. Different forces or personnel can affect the coil winding, thus impacting the instrument's measurement accuracy and consistency. 3) Low coil winding efficiency. Winding requires two people: one to rotate the coil and the other to wind the wire. Due to discontinuous grooves, the winding process requires stopping after each turn to allow the wire to cross the smooth surface and embed into the next groove. Each array induction instrument has dozens of coils, with the largest coil having 200 turns, making manual winding inefficient. 4) For three-dimensional coils, each face has six rectangular coils. Manual winding can result in reverse winding direction or inconsistencies in the actual number of turns. The current manual winding process is not conducive to the standardized production of induction coils and cannot guarantee consistency, which also restricts the efficiency and quality of instrument production.

[0003] In 2014, Cao Mengchao et al. invented a three-dimensional coil winding fixture and its winding method (patent number 201410849053.X), which solved the problems of slow winding speed and poor product reliability in the three-dimensional coil winding process, making the coil winding process safe and reliable, and greatly improving the production efficiency and quality of three-dimensional coil winding. However, this invention patent still refers to manual operation and does not mention the possibility of automatic winding of three-dimensional coils. In 2017, Li Yuwen invented an automatic circular winding machine for rectangular coils (patent number 201711342490.8). The invention overcomes the problem that a toroidal winding machine cannot drive a rectangular coil to wind, and realizes the problem of automatic toroidal winding of rectangular coils. However, the invention does not address the problem of winding grooved coils. In 2019, Gu Xuliang et al. disclosed a method for winding and using rectangular magnetic coils, patent number: 201911306466.0. This invention reduces the manual labor intensity in the production of rectangular magnetic coils, improves the coil production efficiency, and reduces costs and noise. However, its electromagnetic structure is complex and difficult to maintain, and it also does not propose a solution for winding grooved coils. Summary of the Invention

[0004] To address the problems existing in the prior art, the present invention provides an automatic coil winding device, thereby solving the technical problems of manual coil winding in the prior art, such as the inability to accurately control the winding tension, low winding efficiency, inconsistent coil density, and reverse winding direction.

[0005] This invention is achieved through the following technical solution:

[0006] An automatic coil winding device, comprising:

[0007] A clamping unit that clamps and fixes the skeleton and rotates the skeleton around its circumference;

[0008] A displacement control unit controls the movement of the metal wire to be wound in three-dimensional space;

[0009] Tension control unit: The metal wire to be wound is connected to the displacement control unit through the tension control system;

[0010] When using the automatic winding device, the skeleton is fixed on the clamping unit, and the displacement control unit controls the metal wire to be wound on the skeleton.

[0011] Preferably, the clamping unit includes a first clamping component and a second clamping component, and when the automatic winding device is used, the skeleton is disposed between the first clamping component and the second clamping component.

[0012] Preferably, the automatic winding device further includes a spindle module, which includes a drive assembly and a spindle connected together. The spindle is coaxially arranged with the first clamping assembly and the second clamping assembly. The first clamping assembly and the second clamping assembly can rotate synchronously with the spindle under the control of the drive assembly.

[0013] Preferably, the first clamping assembly includes a spindle adapter shaft; one end of the spindle adapter shaft is provided with a connecting hole and a first anti-rotation surface, the spindle is provided with a second anti-rotation surface, the connecting hole is connected to the spindle, and the first anti-rotation surface is connected to the second anti-rotation surface.

[0014] The other end of the main spindle adapter shaft is provided with a first radial positioning surface and a positioning boss. When the winding device is used, the first radial positioning surface cooperates with the first inner hole on the skeleton, and the positioning boss cooperates with the groove on the skeleton.

[0015] Preferably, the main spindle adapter shaft is further provided with a first threaded hole and a through hole. The first threaded hole and the through hole are respectively arranged along the radial and axial directions of the main spindle adapter shaft, and the first threaded hole and the through hole are connected. An adjusting screw is provided in the through hole, and a spring is provided in the first threaded hole. One end of the spring that extends into the first threaded hole is abutted and fixed by the adjusting screw, and the free end of the spring abuts against the positioning boss.

[0016] Preferably, the main spindle adapter shaft is further provided with a limiting member, the limiting member having a stop surface, and the stop surface and the positioning boss having a clearance fit along the axial direction of the main spindle adapter shaft.

[0017] Preferably, the winding device further includes a tailstock module, which includes a tailstock and a slide rail;

[0018] The second clamping device includes a tailstock adapter shaft, which is connected to a tailstock, and the tailstock is slidably mounted on a slide rail.

[0019] Preferably, one end of the tailstock adapter shaft is provided with a second radial positioning surface, which cooperates with the frame, and the other end of the tailstock adapter shaft is provided with a second inner hole, which is connected to the tailstock.

[0020] Preferably, the displacement control unit includes an X-axis control module, a Y-axis control module is movably mounted on the X-axis control module, and a Z-axis control module is movably mounted on the Y-axis control module;

[0021] The Z-axis control module is equipped with a wire guide assembly, which can perform three-dimensional winding on the skeleton under the control of the X-axis control module, Y-axis control module and Z-axis control module.

[0022] Preferably, the free end of the wire assembly is provided with a guide pin.

[0023] Compared with the prior art, the present invention has the following beneficial technical effects:

[0024] This invention discloses an automatic coil winding device, comprising a clamping unit, a displacement control unit, and a tension control unit. The clamping unit clamps and fixes the bobbin and rotates it circumferentially. The displacement control unit controls the movement of the metal wire to be wound in three-dimensional space. The tension control system effectively controls the tension of the metal wire during the coil winding process. This device achieves automatic coil winding, standardizing and intelligentizing the coil winding process, which not only improves the efficiency of induction coil winding but also enhances product stability and consistency.

[0025] Furthermore, the clamping unit includes a first clamping component and a second clamping component. When using the automatic winding device, the skeleton is positioned between the first clamping component and the second clamping component, making the fixing and clamping of the skeleton more convenient.

[0026] Furthermore, the automatic winding device also includes a spindle module, which includes a drive assembly and a spindle connected together. The spindle is coaxially arranged with the first clamping assembly and the second clamping assembly. Under the control of the drive assembly, the first clamping assembly and the second clamping assembly can rotate synchronously with the spindle. The spindle module effectively realizes the rotation of the skeleton.

[0027] Furthermore, the first clamping assembly includes a spindle adapter shaft; one end of the spindle adapter shaft is provided with a connecting hole and a first anti-rotation surface, and the spindle is provided with a second anti-rotation surface. The connecting hole is connected to the spindle, and the first anti-rotation surface is connected to the second anti-rotation surface. The other end of the spindle adapter shaft is provided with a first radial positioning surface and a positioning boss. When the winding device is used, the first radial positioning surface is connected to a first inner hole on the skeleton, and the positioning boss is connected to a groove on the skeleton. This spindle adapter shaft realizes the connection between the spindle module and the skeleton. At the same time, the connection between the second anti-rotation surface and the first anti-rotation surface, and the connection between the positioning boss and the groove on the skeleton, effectively realize coaxial positioning and circumferential zero-point positioning of the skeleton.

[0028] Furthermore, the spindle adapter shaft is also provided with a first threaded hole and a through hole. The first threaded hole and the through hole are respectively arranged radially and axially along the spindle adapter shaft, and the first threaded hole and the through hole are connected. An adjusting screw is provided in the through hole, and a spring is provided in the first threaded hole. One end of the spring extending into the first threaded hole is abutted and fixed by the adjusting screw, and the free end abuts against the positioning boss. The spring here effectively realizes the adaptive fit between the positioning boss and the groove on the frame.

[0029] Furthermore, the spindle adapter shaft is also equipped with a limiting component, which has a stop surface. The stop surface and the positioning boss are in axial clearance fit along the spindle adapter shaft. Here, the axial clearance fit between the stop surface and the positioning boss along the spindle adapter shaft effectively avoids jamming.

[0030] Furthermore, the winding device also includes a tailstock module, which comprises a tailstock and a slide rail; the second clamping device includes a tailstock adapter shaft, which is connected to the tailstock, and the tailstock is slidably mounted on the slide rail. The tailstock and tailstock adapter shaft achieve coaxiality secondary positioning, axial secondary positioning, and locking and fixing of the skeleton. In addition, the tailstock can slide on the slide rail, which can accommodate skeletons of different lengths, improving the versatility of the device.

[0031] Furthermore, one end of the tailstock adapter shaft is provided with a second radial positioning surface, which cooperates with the frame, and the other end of the tailstock adapter shaft is provided with a second inner hole, which connects with the tailstock. The provision of the second radial positioning surface here makes it easier to fix and position the tailstock with the frame.

[0032] Furthermore, the displacement control unit includes an X-axis control module, a Y-axis control module is movably mounted on the X-axis control module, and a Z-axis control module is movably mounted on the Y-axis control module; the Z-axis control module is equipped with a wire assembly, which can perform three-dimensional winding on the skeleton under the control of the X-axis control module, the Y-axis control module and the Z-axis control module, effectively realizing displacement control of the metal wire to be wound.

[0033] Furthermore, the free end of the wire assembly is provided with a guide pin. The guide pin facilitates the positioning of the metal wire to be wound, effectively improving the accuracy of the winding coil. Attached Figure Description

[0034] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a front view of an automatic coil winding device according to the present invention;

[0036] Figure 2 This is a schematic diagram of the clamping unit in this invention;

[0037] Figure 3 This is a structural schematic diagram of the spindle adapter shaft in this invention. (Left) is a structural schematic diagram from one viewpoint, and (Right) is a structural schematic diagram from another viewpoint.

[0038] Figure 4 This is a schematic diagram of the main spindle adapter shaft in this invention;

[0039] Figure 5 This is a schematic diagram of the positioning boss in this invention, with a top (bottom) view and a bottom (front) view.

[0040] Figure 6 This is a schematic diagram of the limiting component in this invention;

[0041] Figure 7 This is a schematic diagram of the tailstock adapter shaft in this invention;

[0042] Figure 8 This is a schematic diagram of the skeleton structure;

[0043] Figure 9 This is a side view of the winding device after the skeleton is installed in this invention;

[0044] Figure 10 This is a schematic diagram of the tension control unit in this invention, showing (left) front view and (right) front view;

[0045] Figure 11 This is a schematic diagram of the cam control principle in this invention;

[0046] Figure 12 A schematic diagram of the slot winding path under the cam control of the slotting coil of the 3DIT6531 three-dimensional induction logging tool;

[0047] Figure 13 A side view of the skeleton of the 3DIT6531 three-dimensional induction logging tool after winding using the winding device of the present invention;

[0048] Figure 14 This is a schematic diagram of the structure before the Z-coil of the 3DIT6531 three-dimensional induction logging tool is wound using the winding device of the present invention.

[0049] Figure 15 This is a schematic diagram of the coaxial coil winding principle in this invention;

[0050] Figure 16 This is a schematic diagram of the quadrant division and slots of the 3DIT6531 three-dimensional induction logging tool.

[0051] The components include: 1. Spindle module; 2. First clamping assembly; 3. Frame; 4. Second clamping assembly; 5. Tailstock module; 6. Slide rail; 7. First X-axis control module; 8. Second X-axis control module; 9. Y-axis control module; 10. Z-axis control module; 11. Tension control unit; 12. Wire assembly; 13. Support platform; 14. Spindle adapter shaft; 15. Positioning boss; 16. Limiting component; 17. Spring; 18. Adjusting screw; 19. T-slot; 20. First threaded hole; 21. Through hole; 22. Second threaded hole; 23. Connecting hole; 24. First anti-rotation surface; 25. Countersunk hole; 26. First end face; 27. Frame axial positioning surface; 28. First radial positioning surface; 29. ​​Arc-shaped top; 30. Boss sidewall; 31. Spring limiting hole; 32. Boss end; 33. Through hole; 34. Stop surface; 35. Second end... 36. Second inner hole; 37. Third threaded hole; 38. Variable diameter section; 39. Second radial positioning surface; 40. Tailstock adapter shaft; 44. Tailstock; 45. Fixed seat; 46. Main shaft; 47. Second anti-rotation surface; 48. Fourth threaded hole; 49. Tailstock shaft; 52. First inner hole; 53. Third end face; 54. Groove; 55. Mounting hole; 56. Cable inlet hole; 57. Dust removal felt; 58. Main guide reel; 5 9. Guide wire reel; 60. Swing rod; 61. Tension spring; 62. Screw; 63. Lead wire wheel; 68. Wire entry point; 69. Guide pin movement trajectory; 70. Overturn position; 72. Right side of the frame; 73. Left side of the frame; 74. First quadrant; 75. Second quadrant; 76. Third quadrant; 77. Fourth quadrant; 78. Forward rotation; 79. Reverse rotation; 80. Y coil; 81. X coil; 82. Z coil. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0053] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0054] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0055] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of the invention is conventionally placed in use, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0056] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0057] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0058] The present invention will now be described in further detail with reference to the accompanying drawings:

[0059] like Figure 1 As shown, this invention discloses an automatic coil winding device, comprising: a clamping unit that clamps and fixes a bobbin 3 and rotates the bobbin 3 circumferentially; a displacement control unit that controls the movement of the metal wire to be wound in three-dimensional space; and a tension control unit 11, which connects the metal wire to be wound to the displacement control unit. When using the automatic winding device, the bobbin 3 is fixed on the clamping unit, and the displacement control unit controls the metal wire to be wound on the bobbin 3.

[0060] The clamping unit includes a first clamping component 2 and a second clamping component 4. When using the automatic winding device, the frame 3 is disposed between the first clamping component 2 and the second clamping component 4.

[0061] Furthermore, such as Figure 1 , 2As shown, the automatic winding device also includes a spindle module 1, which includes a drive assembly and a spindle 46 connected together. The spindle 46 is provided with a second anti-rotation surface 47 and a fourth threaded hole 48. The fourth threaded hole 48 is arranged along the axial direction of the spindle 46, and the second anti-rotation surface 47 is located on the side wall of the spindle 46. The spindle 46 is coaxially arranged with the first clamping assembly 2 and the second clamping assembly 4. Under the control of the drive assembly, the first clamping assembly 2 and the second clamping assembly 4 can rotate synchronously with the spindle 46 and drive the frame 3 to rotate.

[0062] like Figure 3 As shown, the first clamping assembly 2 includes a spindle adapter shaft 14; as Figure 3 As shown in the right figure, one end of the spindle adapter shaft 14 is provided with a connecting hole 23 and a first anti-rotation surface 24. The connecting hole 23 is connected to the spindle 46, and the first anti-rotation surface 24 is connected to the second anti-rotation surface 47. At the same time, a bolt extends into the spindle 46 and is threadedly connected to the fourth threaded hole 48, thereby realizing the connection and fixation of the spindle adapter shaft 14 on the spindle 46.

[0063] like Figure 4 As shown, at the other end of the spindle adapter shaft 14, the spindle adapter shaft 14 is provided with a positioning boss 15, a limiting member 16, a spring 17 and an adjusting screw 18. The positioning boss 15 cooperates with the groove 54 on the frame 3.

[0064] like Figure 5 As shown, the positioning boss 15 includes an arc-shaped top 29, a boss sidewall 30, and a boss end 32, wherein the boss end 32 has a chamfered structure. In addition, the positioning boss 15 is also provided with a spring limiting hole 31.

[0065] like Figure 3 As shown in the left figure, the spindle adapter shaft 14 is also provided with a T-slot 19, and a first threaded hole 20 is provided at the T-slot 19. The spring 17 is disposed in the first threaded hole 20, and a positioning boss 15 is provided at its top. Specifically, the top of the spring 17 abuts against the spring limiting hole 31 on the positioning boss 15. The first threaded hole 20 is arranged radially along the spindle adapter shaft 14. In addition, the spindle adapter shaft 14 is also provided with a through hole 21, which is arranged axially along the spindle adapter shaft 14. The through hole 21 is perpendicular to and connected to the first threaded hole 20. An adjusting screw 18 is provided at the through hole 21, and the elastic force of the spring 17 can be adjusted by adjusting the screw 18.

[0066] like Figure 4 As shown, the spindle adapter shaft 14 is also provided with a limiting member 16, such as... Figure 6As shown, the limiting member 16 includes a stop surface 34 and a limiting plate; the limiting plate is provided with a second end face 35 and a plurality of through holes 33, the plurality of through holes 33 being arranged at intervals along the circumference of the limiting plate, preferably, the plurality of through holes 33 being evenly spaced along the circumference of the limiting plate, and may be 3 through holes 33.

[0067] like Figure 3 As shown in the left figure, the spindle adapter shaft 14 is also provided with a first end face 26. The second end face 35 of the limiting block 16 is set against the first end face 26 of the spindle adapter shaft 14. The stop surface 34 and the positioning boss 15 are fitted with a clearance along the axial direction of the spindle adapter shaft 14. In addition, the spindle adapter shaft 14 is also provided with a plurality of second threaded holes 22. The second threaded holes 22 are fitted with through holes 33. The connection between the limiting block 16 and the spindle adapter shaft 14 is realized through the second threaded holes 22 and the through holes 33, and can be fixed with screws.

[0068] In addition, the spindle adapter shaft 14 is also provided with a countersunk hole 25, a skeleton axial positioning surface 27 and a first radial positioning surface 28. When using this device, the third end face 53 on the skeleton 3 is fitted with the skeleton axial positioning surface 27, the first radial positioning surface 28 is fitted with the first inner hole 52 on the skeleton 3, and at the same time, the locking bolt passes through the countersunk hole 25 and locks and fixes with the fourth threaded hole 48 in the spindle module 1, so as to realize the connection and fixation between the spindle adapter shaft 14 and the spindle module 1.

[0069] like Figure 7 As shown, the second clamping device 4 includes a tailstock adapter shaft 40. One end of the tailstock adapter shaft 40 is connected to the frame 3, and the other end is connected to the tailstock module 5. One end of the tailstock adapter shaft 40 is provided with a second radial positioning surface 39 and a variable diameter part 38, and the second radial positioning surface 39 cooperates with the frame 3. The other end of the tailstock adapter shaft 40 is provided with a second inner hole 36, which is connected to the tailstock module 5. The side wall of the tailstock adapter shaft 40 is provided with a third threaded hole 37, which is arranged radially along the tailstock adapter shaft 40. When the second inner hole 36 is connected to the tailstock module 5, it is tightened by a screw through the third threaded hole 37.

[0070] like Figure 9 As shown, the tailstock module 5 includes a tailstock 44, a slide rail 6, and two fixed seats 45, which are combined with... Figure 2 It is known that the tailstock module 5 also includes a tailstock shaft 49; the tailstock adapter shaft 40 is connected to the tailstock shaft 49, the tailstock shaft 49 is mounted on the tailstock 44, the tailstock 44 is mounted on the slide rail 6, and both ends of the slide rail 6 are mounted on the fixed seat 45. The main shaft 46, the frame 3, and the tailstock shaft 49 are coaxially arranged.

[0071] In addition, such as Figure 1As shown, the winding device also includes a support platform 13, on which the clamping unit, displacement control unit, and tension control unit 11 are all mounted. That is, the support platform 13 is mainly used to support and store the various components on the platform.

[0072] like Figure 1 As shown, the displacement control unit includes an X-axis control module, a Y-axis control module 9 movably mounted on the X-axis control module, and a Z-axis control module 10 movably mounted on the Y-axis control module 9. A wire guide assembly 12 is mounted on the Z-axis control module 10, and the wire guide assembly 12 can perform three-dimensional winding on the skeleton 3 under the control of the X-axis control module, the Y-axis control module 9, and the Z-axis control module 10. The X-axis control module includes a first X-axis control module 7 and a second X-axis control module 8, and the two ends of the Y-axis control module 9 are fixedly mounted to the first X-axis control module 7 and the second X-axis control module 8, respectively.

[0073] In a preferred embodiment, the spindle module 1 is driven by a 750W motor, which transmits power to the spindle 46 via a 90-degree right-angle reducer. The frame 3 is clamped by the first clamping assembly 2 and the second clamping assembly 4. The position of the tailstock 44 on the slide rail 6 can be adjusted to accommodate different frames. The first X-axis control module 7 and the second X-axis control module 8 are driven by two 200W servo motors respectively, and can move back and forth to perform X-axis winding. The Y-axis control module 9 is driven by a 400W servo motor and can move left and right to perform Y-axis winding. The Z-axis control module 10 is driven by a 200W servo motor and can move up and down to perform Z-axis winding, thereby achieving movement in the X, Y, and Z directions to meet the product winding requirements.

[0074] In addition, the guide wheel of the conductor assembly 12 is made of polished ceramic material, which is characterized by a smooth surface and low damping. Preferably, the free end of the conductor assembly 12 is also provided with a guide pin, that is, the end of the conductor assembly 12 is guided and positioned by the guide pin. The guide pin is made of polished tungsten steel, and different wire diameters are equipped with corresponding guide pins to meet the precise positioning during the copper wire winding process, while ensuring the safety of the enameled wire.

[0075] The tension control unit 11 can effectively control the tension of the metal wire during the winding process. In a preferred embodiment, the tension control unit 11 adopts a magnetic damping control method. The system has a built-in magnetic damping generator. After the tension value is set by the host computer or directly on the tension control system interface, the system provides the corresponding resistance, i.e., the winding tension of the copper wire. It adopts an open-loop control method, or a closed-loop control method can be adopted according to the accuracy requirements to ensure the tension of the copper wire is stable during the winding process.

[0076] like Figure 10As shown, the tension control system 11 is equipped with an inlet hole 56, a dust-removing felt 57, a main guide reel 58, an outlet guide reel 63, and several auxiliary guide reels 59. The tension control system 11 is fixed to the main unit through the mounting hole 55. The metal wire, which can be copper wire, enters through the inlet hole 56, passes through the dust-removing felt 57, passes through the first auxiliary guide reel 59 to the main guide reel 58 with the built-in tension motor, then passes through two more auxiliary guide reels 59, and exits the tension control system 11 through the outlet guide reel 63. In addition, the tension control system 11 also includes a swing arm 60 and a tension spring 61. One end of the swing arm 60 is connected to the body of the tension control system 11. Preferably, the swing arm 60 can be fixed to the tension control system 11 by a screw 62, and the other end is connected to the lead wire wheel 63. One end of the tension spring 61 is connected to the body of the tension control system 11, and the other end is connected to the swing arm 60. The control principle is as follows: the tension value is set through the human-machine interface, and the tension motor provides the initial tension according to the set tension value. When the tension value fluctuates, the swing arm 60 and the tension spring 61 offset it by swinging, so as to ensure the safety of the copper wire during the winding process and prevent loosening.

[0077] Further explanation of the clamping unit in this invention: The clamping unit of the automatic winding device consists of two parts: a first clamping assembly 2 and a second clamping assembly 4. The first clamping assembly 2 includes a main spindle adapter shaft 14, one end of which is connected and fixed to the main spindle 46, and the other end is connected and fixed to the skeleton 3, performing coaxial positioning and circumferential zero-point positioning of the skeleton 3. The second clamping assembly 4 includes a tailstock adapter shaft 40, which is installed and fixed on the tailstock module 5. One end of the tailstock adapter shaft 40 is connected to the tailstock module 5, and the other end is connected to the skeleton 3. During the assembly of the skeleton 3, the tailstock adapter shaft 40 plays an auxiliary positioning and clamping role, used for secondary coaxial positioning, secondary axial positioning, and skeleton locking and fixing.

[0078] The assembly process of the spindle adapter shaft 14 in this invention is as follows: the positioning boss 15 is installed in the T-slot 19 of the spindle adapter shaft 14; the spring 17 passes through the first threaded hole 20 of the spindle adapter shaft 14, and its top end presses against the spring limiting hole 31 in the positioning boss 15; the adjusting screw 18 passes through the through hole 21 in the spindle adapter shaft 14, which communicates with the first threaded hole 20; the adjusting screw 18 vertically presses against the lower end of the spring 17, and the elastic force of the spring 17 can be adjusted by adjusting the tightness of the adjusting screw 18; the second end face 35 of the limiting block 16 is attached to the first end face 26 of the spindle adapter shaft 14; the stop surface 34 maintains a certain gap with the positioning boss 15, which can be 0.1mm, to avoid jamming; finally, the screw is locked and fixed through the through hole 33 on the limiting block 16 and the second threaded hole 22 of the spindle adapter shaft 14.

[0079] The specific assembly relationship between the spindle adapter 14 and the spindle 46 is as follows: the connecting hole 23 in the spindle adapter 14 mates with the spindle 46, and the first anti-rotation surface 24 of the spindle adapter 14 mates with the second anti-rotation surface 47 of the spindle 46, serving to prevent rotation and transmit torque. The locking bolt passes through the countersunk hole 25 in the spindle adapter 14 and locks in place with the fourth threaded hole 48 in the spindle module 1, thus achieving the assembly of the spindle adapter 14 and the spindle 46.

[0080] The specific assembly relationship between the tailstock adapter shaft 40 and the tailstock module 5 is as follows: the second inner hole 36 in the tailstock adapter shaft 40 is engaged with the tailstock shaft 49 in the tailstock module 5, and is tightened with screws through the third threaded hole 37.

[0081] The assembly process of skeleton 3 is as follows: Figure 8 As shown, the frame 3 includes a first inner hole 52, a groove 54, and a third end face 53. At one end of the frame 3, the groove 54 engages with the arc surface 29 on the positioning boss 15. The positioning boss in this invention has an adaptive function, which unifies the position of the origin of the frame 3 with the origin of the main shaft 46. The first inner hole 52 on the frame 3 engages with the first radial positioning surface 28 on the main shaft adapter 14. At the other end of the frame 3, the inner hole at the other end of the frame 3 engages with the second radial positioning surface 39 on the tailstock adapter 40. After engagement, the sliding rail 6 pushes the third end face 53 of the frame 3 to contact the axial positioning surface 27 of the frame on the main shaft adapter 14, locks the sliding rail 6, and then rotates the tailstock handwheel until the frame 3 is completely fixed in the axial direction. Finally, the locking bolts of the tailstock module 5 are tightened to complete the installation of the frame 3.

[0082] The automatic coil winding device developed in this invention clamps the bobbin 3 using a first clamping assembly 2 and a second clamping assembly 4 during coil winding. The position of the tailstock 44 on the slide rail 6 can be adjusted to accommodate bobbins of different lengths. The first X-axis control module 7 and the second X-axis control module 8 are driven by two 200W servo motors, allowing for forward and backward movement for X-axis winding. The Y-axis control module 9 is driven by a 400W servo motor, allowing for left and right movement for Y-axis winding. The Z-axis control module 10 is driven by a 200W servo motor, allowing for up and down movement for Z-axis winding, thus achieving movement in the X, Y, and Z directions to meet product winding requirements. The tension control system 11 ensures stable tension of the copper wire during winding. The guide wheels of the wire assembly 12 are equipped with corresponding guide pins for different wire diameters to accommodate copper wire winding of varying diameters while ensuring the safety of the enameled wire.

[0083] The schematic diagram of cam control, also known as slot-crossing control, is as follows: Figure 11As shown, to ensure smooth over-turning during the product winding process, it has been verified that when the spindle rotates to the over-turning range, the Y-axis undergoes an overshoot displacement, that is, exceeding one over-turning unit distance. Just before the over-turning is about to end, the Y-axis undergoes a reverse displacement, that is, to compensate for the overshoot distance. Throughout the entire process, the Y-axis only displaces one over-turning unit distance.

[0084] A schematic diagram of coil winding is shown below. Figure 12 As shown, the copper wire is manually led out through the tension control unit 11 to the metal wire entry point 68 for automatic winding of the induction coil. The equipment starts winding according to the parameters of the corresponding model. When the main shaft 46 rotates once to the over-turn position 70, the system controls the Y-axis guide needle to move along the wire guide needle movement trajectory 69 according to the cam control principle, completing one over-turn winding. The above actions are repeated to complete the axial winding of the product.

[0085] Figure 13 This is a side view of the wound skeleton. Figure 13 It can be seen that the metal wire in the axial direction after winding has a rectangular structure when viewed from the side.

[0086] CPlog array induction logging instruments have three main models: MIT1530 array induction logging tool, MIT1531 array induction logging tool, and 3DIT6531 three-dimensional induction logging tool.

[0087] The MIT1530 array induction logging tool uses smooth coils and has 11 coils in total: Transmitting coils TR, 06B, 39R, 72B, and 72R (5 types are single-wire wound coils, with the transmitting coil using a two-layer winding); and 06R09B, 09R12B, 12R15B, 15R21B, 21R27B, and 27R39B (6 types are double-wire wound coils).

[0088] The MIT1531 array induction logging tool uses grooved coils and has a total of 10 coils: Transmitting coils TR, 60B, 60R, 94B, and 94R, all of which are single-wire wound coils, with the transmitting coil using a two-layer winding. 06R06B, 10R10B, 16R16B, 24R24B, and 39R39B, these five are double-wire wound coils.

[0089] The 3DIT6531 three-dimensional sensor has 11 coils: transmitting coils TR, 24B, 24R, 60B, 60R, 94B, and 94R. These seven are all triaxial coils. One group of coils includes X, Y, and Z coils. The X coil 81 and Y coil 80, viewed from the side of the frame, are rectangular coils wound along the horizontal or vertical cross-section of the circular ceramic frame. However, the winding on the end face follows the circular edge, forming a trapezoidal shape rather than a straight line. Therefore, the X coil 81 and Y coil 80 are not strictly rectangular overall, but rather appear as rectangles with two "trapezoidal bridges" at both ends. Figure 13 As shown, one group is the X coil 81, and the other group is the Y coil 80. The Z coil is a circular coil, as shown... Figure 14 As shown, the coil wound in the circumferential direction is a Z-coil 82.

[0090] The schematic diagram of coaxial coil winding is as follows: Figure 15 As shown, the coaxial winding adopts a spiral winding method. The main shaft rotates at a certain speed, and the Y-axis wire is fed at a certain speed. According to the wire diameter parameters in the product specifications, the program automatically generates the feed amount of one cycle of the Y-axis, so that the copper wire is spirally wound on the optical shaft according to the product requirements parameters.

[0091] The quadrant diagram of X coil 81 is as follows: Figure 13 , 16 As shown, 72 is the right side of the skeleton, 73 is the left side of the skeleton, and the quadrants of the X coil 81 include the first quadrant 74, the second quadrant 75, the third quadrant 76 and the fourth quadrant 77. The winding of different skeletons is satisfied by forward rotation 78 and reverse rotation 79.

[0092] like Figure 16As shown, the winding principle is as follows: Winding of X coil 81: When the main shaft 46 is stationary, the guide pin guides the metal wire axially from the sixth slot of the second quadrant 75 on the left side of the skeleton 73 to the sixth slot of the second quadrant 75 on the right side of the skeleton 72 via the X-axis control module, Y-axis control module 9, and Z-axis control module 10. When the main shaft rotates clockwise by an angle α1, the guide pin guides the copper wire from the sixth slot of the second quadrant 75 on the right side of the skeleton 72 to the sixth slot of the first quadrant 74 on the right side of the skeleton 72. With spindle 46 stationary, the guide pin guides the copper wire from slot 6 of quadrant 74 in the first quadrant on the right side of the bobbin (72) back along the axis to slot 6 of quadrant 74 in the first quadrant on the left side of the bobbin (73). The spindle reverses by angle α1, and the guide pin guides the copper wire from slot 6 of quadrant 74 in the first quadrant on the left side of the bobbin (73) to slot 6 of quadrant 75 in the second quadrant on the left side of the bobbin (73) to complete one turn of winding. The rectangular coil in slot 6 is wound according to the parameters. When the last turn is reached, the spindle reverses by angle β1, and the guide pin guides the copper wire from slot 6 of quadrant 1 in the left side to slot 5 of quadrant 2 in the left side to wind the rectangular coil in slot 5. The rectangular coils in slots 5, 4, 3, 2, and 1 are wound sequentially using the same method. After the rectangular coils in the first and second quadrants are completed, the spindle rotates clockwise to slot 6 of quadrant 77 in the fourth quadrant. The rectangular coils in the third and fourth quadrants are wound in the same way, completing the rectangular winding of coil X 81. The rectangular winding of coil Y 80 is completed in the same way.

[0093] Based on product type and categorized by series, the corresponding series are set in the process sub-directory, and the sub-directories under each series correspond to various models. The controller has a built-in control program based on the process parameters of each model. When winding products, selecting the product series and model sequentially will automatically complete the winding of the corresponding model.

[0094] The parameters of five automatically wound MIT1531 array induction logging tool coils were tested, and the test results are shown in Table 1. As can be seen from Table 1, the absolute value of the deviation between the test value and the reference value is less than 0.5Ω, which meets the usage requirements.

[0095] Table 1. Performance Test Table of MIT1531 Array Induction Logging Tool Coil

[0096]

[0097]

[0098] The parameters of three automatically wound 3DIT6531 three-dimensional induction logging tool coils were tested. During the verification of the test results, when the resistance of the reference value was not greater than 10Ω, the deviation between the reference value and the measured value should not be greater than 0.5Ω; when the resistance of the reference value was greater than 10Ω, the error between the reference value and the measured value should not be greater than 10%. As shown in Table 1, all coils meet the usage requirements.

[0099] Table 2 Performance Test Table of 3DIT6531 Three-Dimensional Induction Logging Tool Coil

[0100]

[0101]

[0102] This automated coil winding device increases overall coil winding efficiency by four times. Taking the MIT1531 array induction 94R coil as an example, manual winding required two people and five hours, while automated winding only takes fifty minutes, increasing efficiency by twelve times. The efficiency improvement is less pronounced for coils with fewer turns. Furthermore, coil consistency is significantly improved, achieving standardization and intelligentization of the coil winding process, saving labor costs, ensuring instrument production progress, and improving the quality of logging instruments, resulting in a broad market prospect. For the three currently produced array induction coils, the winding efficiency has been increased by at least four times on average.

[0103] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An automatic coil winding device, characterized in that, include: The clamping unit clamps and fixes the skeleton (3) and rotates the skeleton (3) around its circumference; A displacement control unit controls the movement of the metal wire to be wound in three-dimensional space; Tension control unit (11), the metal wire to be wound is connected to displacement control unit through the tension control unit (11); When using the automatic winding device, the skeleton (3) is fixed on the clamping unit, and the displacement control unit controls the metal wire to be wound to be wound on the skeleton (3); The clamping unit includes a first clamping component (2) and a second clamping component (4). When the automatic winding device is used, the skeleton (3) is disposed between the first clamping component (2) and the second clamping component (4). The automatic winding device further includes a spindle module (1), which includes a drive assembly and a spindle (46) connected together. The spindle (46) is coaxially arranged with the first clamping assembly (2) and the second clamping assembly (4). The first clamping assembly (2) and the second clamping assembly (4) can rotate synchronously with the spindle (46) under the control of the drive assembly. The displacement control unit includes an X-axis control module, a Y-axis control module (9) is movably mounted on the X-axis control module, and a Z-axis control module (10) is movably mounted on the Y-axis control module (9). The Z-axis control module (10) is equipped with a wire assembly (12), which can be wound in three dimensions on the skeleton (3) under the control of the X-axis control module, the Y-axis control module (9) and the Z-axis control module (10).

2. The automatic coil winding device according to claim 1, characterized in that, The first clamping assembly (2) includes a spindle adapter shaft (14); one end of the spindle adapter shaft (14) is provided with a connecting hole (23) and a first anti-rotation surface (24), and the spindle (46) is provided with a second anti-rotation surface (47). The connecting hole (23) is connected to the spindle (46), and the first anti-rotation surface (24) is connected to the second anti-rotation surface (47). The other end of the main shaft adapter (14) is provided with a first radial positioning surface (28) and a positioning boss (15). When the winding device is used, the first radial positioning surface (28) cooperates with the first inner hole (52) on the skeleton (3), and the positioning boss (15) cooperates with the groove (54) on the skeleton (3).

3. The automatic coil winding device according to claim 2, characterized in that, The main spindle adapter shaft (14) is also provided with a first threaded hole (20) and a through hole (21). The first threaded hole (20) and the through hole (21) are respectively arranged along the radial and axial directions of the main spindle adapter shaft (14), and the first threaded hole (20) and the through hole (21) are connected. An adjusting screw (18) is provided in the through hole (21), and a spring (17) is provided in the first threaded hole (20). One end of the spring (17) extending into the first threaded hole (20) is abutted and fixed by the adjusting screw (18), and the free end of the spring (17) abuts against the positioning boss (15).

4. The automatic coil winding device according to claim 2, characterized in that, The main spindle adapter shaft (14) is also provided with a limiting member (16), and the limiting member (16) is provided with a stop surface (34). The stop surface (34) and the positioning boss (15) are in axial clearance fit along the main spindle adapter shaft (14).

5. The automatic coil winding device according to claim 1, characterized in that, The winding device also includes a tailstock module (5), which includes a tailstock (44) and a slide rail (6). The second clamping assembly (4) includes a tailstock adapter shaft (40), which is connected to a tailstock (44), and the tailstock (44) is slidably mounted on a slide rail (6).

6. The automatic coil winding device according to claim 5, characterized in that, One end of the tailstock adapter shaft (40) is provided with a second radial positioning surface (39), which cooperates with the frame (3). The other end of the tailstock adapter shaft (40) is provided with a second inner hole (36), which is connected to the tailstock (44).

7. The automatic coil winding device according to claim 1, characterized in that, The free end of the wire assembly (12) is provided with a guide pin.

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