Transformer winding machine

Abstract

According to the transformer winding machine, a fixing plate is installed on a rack, and an adjustable jig and a stretching rod are fixed to the end, away from the rack, of the fixing plate; the adjustable jig is provided with an inner supporting structure, and the inner supporting structure is arranged in the transformer framework sleeve in a sleeved mode. The rear end of the adjustable jig is connected with an adjusting switch which is used for adjusting the size of the inner supporting structure in a rotating mode. The two stretching rods are symmetrically arranged on the two sides of the adjustable jig, the ends, away from the adjustable jig, of the stretching rods are connected with the retaining wall of the transformer framework, and the stretching rods are used for tensioning and fixing the retaining wall of the transformer framework. Through the adjustable jig, the size of the jig can be adjusted according to the sizes of different transformer frameworks, the limitation that one jig of a traditional winding machine can only aim at one transformer framework is broken through, cost is saved, high applicability is achieved, stability of transformer production quality is facilitated, and high reliability is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of transformer winding machines, and in particular to a transformer winding machine. Background Art

[0002] With the development of new energy vehicles and photovoltaic energy storage, the demand for electronic components is increasing. Among them, high-frequency transformers are the core components for achieving energy conversion. An efficient and convenient winding equipment is particularly important for the winding of high-frequency transformers.

[0003] Traditional winding machines can only match one jig for each transformer bobbin. Frequent jig replacement is required when winding different transformers, which is labor-intensive. With the development of transformer technology, more and more customized transformers have emerged, resulting in an increasing number of unconventional transformer bobbins. However, the jigs and bobbins of conventional transformers cannot be effectively coordinated, resulting in frequent rotation of the bobbin during the transformer winding process, increasing production difficulty.

[0004] Traditional winding machines only rely on jigs to insert the transformer frame. During the fitting process, interference fit can easily lead to the breakage of the transformer frame, resulting in poor production quality. Traditional winding machines lack an automatic zero counter for winding counting. After winding is completed, the transformer frame needs to be removed and reversely rotated to restore it, which is cumbersome to operate. Summary of the Invention

[0005] The object of the present invention is to provide a transformer winding machine to solve the problems of frequent fixture replacement, loose frame installation and cumbersome turn counting in traditional winding machines.

[0006] In order to achieve the above object, the present invention provides a transformer winding machine, comprising:

[0007] frame;

[0008] A fixing plate is mounted on the frame, and an adjustable jig and a stretching rod are fixed to one end of the fixing plate away from the frame;

[0009] The adjustable fixture is located at the front center of the fixed plate and has an internal support structure, and the internal support structure is sleeved inside the transformer frame sleeve;

[0010] The rear end of the adjustable fixture is connected to an adjustment switch, and the adjustment switch is used to rotate and adjust the size of the inner support structure;

[0011] There are two stretching rods, which are symmetrically arranged on both sides of the adjustable fixture. One end of the stretching rod away from the adjustable fixture is connected to the transformer skeleton retaining wall. The stretching rod is used to tighten and fix the retaining wall of the transformer skeleton.

[0012] In a feasible implementation, the rack includes a base and a baffle vertically mounted on the top of the base;

[0013] There are three baffles, namely a first baffle, a second baffle and a connecting baffle. The first baffle, the second baffle and the connecting baffle are respectively located on the left side, the right side and the rear side of the base. The first baffle and the second baffle are symmetrically arranged. Both ends of the connecting baffle are fixedly connected to the first baffle and the second baffle respectively.

[0014] The fixing plate is fixedly connected to a side of the base close to the first baffle.

[0015] In a feasible implementation, it further includes: a rocker and a gear transmission system;

[0016] The rocker is located on the outside of the frame and away from the adjustable fixture;

[0017] The gear transmission system includes: a first gear fixing rod, a second gear fixing rod, a first gear, a second gear, a first helical gear and a second helical gear;

[0018] The two ends of the gear fixing rod one are respectively passed through the lower part of the first baffle and the second baffle, and the two ends of the gear fixing rod two are respectively passed through the upper part of the first baffle and the second baffle;

[0019] The gear 1 is fixed to one end of the gear fixing rod 1 and is arranged outside the second baffle, and the gear 1 is hinged to the rocker;

[0020] The second gear is fixed to one end of the second gear fixing rod and is arranged on the outside of the second baffle to mesh with the first gear;

[0021] The helical gear 1 is fixed to the middle of the gear fixing rod 2 and is close to the first baffle;

[0022] The central axis of the second helical gear is fixedly connected to the rear end of the adjustable fixture and meshes with the first helical gear.

[0023] In a feasible implementation, a support plate is further installed on the frame, and the support plate is fixedly connected to a side of the base close to the second baffle;

[0024] A counter is installed on the top of the support plate, and the counter includes a display and a counting gear;

[0025] The gear transmission system further comprises: gear three and a chain;

[0026] The gear three is fixed at the middle of the gear fixing rod two and close to the second baffle, and the counting gear is meshed with the gear three through the chain;

[0027] The counting gear is located outside the display and is connected to the inside of the display through a connecting rod. The display is used to display the number of windings of the transformer skeleton.

[0028] In a feasible implementation, a reset button is provided on the display of the counter, and the reset button is used to completely release the winding of the transformer bobbin.

[0029] In a feasible implementation, the adjustable fixture includes: a positioning head, an inner support plate, an inner support rod, a positioning plate, an inner support wheel, a rotating rod and a positioning rod;

[0030] The positioning head is a conical metal head structure and is far away from the adjustment switch. The inner support plate is four arc plates and is distributed in an array around the circumference of the rotating rod.

[0031] The positioning plate is a circular plate and is located on a side of the inner support plate away from the positioning head;

[0032] The positioning rod is fixedly connected to the side of the positioning plate facing away from the inner support plate;

[0033] The inner support wheel is fixed on the rotating rod, the inner support wheel is slidably connected to the inner support rod, the inner support rod is fixed under the inner support plate and slidably connected to the inner support wheel, and when the inner support wheel rotates, the inner support rod moves radially along the inner support wheel;

[0034] The rotating rod passes through the center of the adjustable fixture, the front end of the rotating rod is fixed to the ground of the positioning head, and the rear end passes through the positioning plate and the positioning rod and is connected to the adjustment switch.

[0035] In a feasible implementation, the inner support rod includes: a vertical rod and a horizontal rod;

[0036] The cross bar and the rotating bar are arranged in parallel, and one end of the vertical bar is fixed below the inner support plate, and the other end is fixed to the cross bar;

[0037] The inner support wheel is provided with a sliding groove, and the cross bar is passed through the sliding groove and slides along the sliding groove.

[0038] In a feasible implementation, the adjustment switch includes a connecting port, a connecting rod, a switch spring, a rotating gear 1, a rotating gear 2 and a knob;

[0039] The knob is located at the end of the adjustment switch away from the adjustable fixture and is fixedly connected to the connecting rod;

[0040] The second rotating gear is fixed on the rotating rod and close to the knob, and the first rotating gear is fixed on the connecting rod and is arranged on the side of the second rotating gear facing away from the knob;

[0041] The teeth of the rotating gear 1 and the rotating gear 2 are meshed in opposite directions;

[0042] The switch spring is located on a side of the rotating gear 1 away from the rotating gear 2. One end of the switch spring is fixed to the connecting rod, and the other end is in contact with the rotating gear 1 to provide elastic force to lock the rotating gear 1 and the rotating gear 2.

[0043] The connecting port is square and passes through the connecting rod and the knob. The connecting rod is sleeved in the positioning rod. The rotating rod passes through the connecting port and the connecting rod and the knob to connect to the second bevel gear.

[0044] In a feasible implementation, the stretching rod includes a blocking piece, an outer cylinder, a slider, a spring and a telescopic rod;

[0045] The blocking piece is arranged away from the fixed plate, and is an alloy metal piece. The blocking piece is hinged to the slider and rotates around the axis of the slider;

[0046] The slider is a semi-cylindrical structure, located in a semi-circular guide groove inside the outer cylinder, and protruding from one end of the outer cylinder close to the baffle, and the slider is slidably connected to the outer cylinder;

[0047] One end of the spring is fixed to the end of the slider away from the baffle, and the other end of the spring is fixed to the telescopic rod. The telescopic rod passes through the outer tube and is installed on the fixing plate. The surface of the telescopic rod is provided with an external thread, and the inner wall of the outer tube is provided with an internal thread. The telescopic rod is threadedly connected to the inner wall of the outer tube.

[0048] The transformer frame is sleeved on the outside of the adjustable fixture, and the retaining wall of the transformer frame is located outside the positioning plate and contacts the retaining piece of the stretching rod.

[0049] In a feasible implementation, the gear three and the counting gear are both spur gears with the same number of teeth, and the rotating gear one and the rotating gear two are the same in size and number of teeth.

[0050] The beneficial effects of the transformer winding machine provided by this application are as follows:

[0051] 1. The transformer winding machine of the present application has a rocker located on the right side of the device, which is convenient for manual shaking. The helical gear changes the rotation direction of the transformer bobbin, which is convenient for observing the bobbin winding status. At the same time, it has a one-button reset counter, which is convenient for winding counting.

[0052] 2. The transformer winding machine of the present application has an adjustable fixture. The size of the fixture can be adjusted according to the size of different transformer bobbins. This breaks the limitation of traditional winding machines that one fixture can only be used for one type of transformer bobbin, saves the cost of multiple sets of fixtures, and is also highly applicable to unconventional transformer bobbins.

[0053] 3. The transformer winding machine of the present application performs internal support and fixation from the inside of the transformer frame sleeve when applying the transformer frame, thereby avoiding the problem of transformer frame cracking caused by overfitting and being beneficial to the stability of transformer production quality.

[0054] 4. The transformer winding machine of the present application has an adjustable stretching rod, and the transformer frame is further tightened and fixed by a baffle. The tension can be adjusted by the internal telescopic rod, and has high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] The accompanying drawings are incorporated into and constitute a part of this specification, illustrate embodiments consistent with the implementation of the present invention, and together with the description, serve to explain the principles of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the implementation of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0056] Figure 1 1 is a schematic structural diagram of a transformer winding machine according to an exemplary embodiment of the present application;

[0057] Figure 2 is a front view of a transformer winding machine shown in an exemplary embodiment of the present application;

[0058] Figure 3 is a top view of a transformer winding machine shown in an exemplary embodiment of the present application;

[0059] Figure 4 is a side view of a transformer winding machine shown in an exemplary embodiment of the present application;

[0060] Figure 5 is a schematic diagram of a counter structure shown in an exemplary embodiment of the present application;

[0061] Figure 6 1 is a schematic diagram of an adjustable fixture structure shown in an exemplary embodiment of the present application;

[0062] Figure 7 1 is a schematic diagram of an inner support rod structure shown in an exemplary embodiment of the present application;

[0063] Figure 8 This is a schematic diagram of the structure of the inner support wheel and the rotating rod shown in an exemplary embodiment of the present application;

[0064] Figure 9 is a schematic diagram of an adjustment switch structure shown in an exemplary embodiment of the present application;

[0065] Figure 10 is a side view of an adjustment switch shown in an exemplary embodiment of the present application;

[0066] Figure 11 1 is a schematic diagram of a stretching rod structure shown in an exemplary embodiment of the present application;

[0067] Figure 12 1 is a schematic diagram of a cross-sectional structure of a stretching rod according to an exemplary embodiment of the present application;

[0068] Figure 13 It is a schematic diagram of the transformer skeleton assembly structure shown in an exemplary embodiment of the present application.

[0069] Description of the accompanying drawings:

[0070] 1-frame; 2-support plate; 3-fixed plate; 4-stretching rod; 5-counter; 6-adjustable fixture; 7-adjustment switch; 8-rocker;

[0071] 11-base; 12-baffle; 13-gear fixing rod 1; 14-gear fixing rod 2; 15-chain; 41-baffle; 42-outer cylinder; 43-slider; 44-spring; 45-telescopic rod; 51-display; 52-counting gear; 61-positioning head; 62-inner support plate; 63-inner support rod; 64-positioning plate; 65-inner support wheel; 66-rotating rod; 67-positioning rod; 71-connecting port; 71-connecting rod; 73-switch spring; 74-rotating gear 1; 75-rotating gear 2; 76-knob;

[0072] 121 - first baffle 121; 122 - second baffle; 123 - connecting baffle; 131 - gear 1; 141 - gear 2; 142 - gear 3; 143 - helical gear 1; 144 - helical gear 2; 631 - vertical rod; 632 - horizontal rod. DETAILED DESCRIPTION

[0073] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the examples set forth herein;

[0074] Rather, these embodiments are provided so that the embodiments of the present invention will be more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to provide a thorough understanding of the embodiments of the present invention.

[0075] Traditional winding machines can only match one jig to each transformer bobbin, requiring frequent jig changes when winding different transformers, which is labor-intensive. With the development of transformer technology, more and more customized transformers have emerged, resulting in an increasing number of non-standard transformer bobbins. Conventional transformer jigs and bobbins do not work effectively together, causing the bobbin to frequently rotate during the winding process, increasing production difficulties. Traditional winding machines rely solely on inserting jigs into the transformer bobbin. During the fitting process, interference fits can easily cause the transformer bobbin to break, resulting in poor production quality. Traditional winding machines also lack an automatic zeroing counter for winding counts. After winding is completed, the transformer bobbin must be removed and reversed to restore it, making the operation cumbersome.

[0076] To solve the above problems, refer to Figure 1 and Figure 2 As shown, this embodiment provides a transformer winding machine, including a frame 1, a fixing plate 2, an adjustable fixture 6 and a stretching rod 4.

[0077] The frame 1 serves as the integral support structure, with a fixed plate 2 mounted on its surface. The end of the fixed plate 2 (front end) facing away from the frame 1 is fixedly connected to an adjustable fixture 6 and a tension rod 4. The adjustable fixture 6 is located at the center of the front end of the fixed plate 2 and is primarily an internal support structure that fits within the transformer frame sleeve, achieving axial fixation through internal expansion.

[0078] The rear end of the adjustable jig 6 is connected to an adjustment switch 7. Rotating the adjustment switch 7 changes the expansion size of the internal support structure to accommodate transformer bobbin sleeves of varying inner diameters. Two stretching rods 4 are symmetrically positioned on either side of the adjustable jig 6. Their ends, distal from the adjustable jig 6, are connected to the transformer bobbin retaining wall. The elastic tension tightens the retaining wall to prevent displacement during winding.

[0079] During use, the transformer frame sleeve is inserted into the internal support structure of the adjustable jig 6. The adjustment switch 7 is rotated to expand the internal support structure, tightly fitting it against the inner wall of the sleeve for axial fixation. Simultaneously, the tension rod 4 contacts the frame retaining wall, pulling the retaining wall toward both sides to achieve radial fixation. The frame 1 serves as the base platform, and the fixed plate 2 serves as the mounting support. Together, they ensure the positioning accuracy of the adjustable jig 6 and the tension rod 4.

[0080] This transformer winding machine, employing a dual-fixation system of internal support and external tension, addresses the limited versatility of conventional winding machine fixtures. The internal support structure achieves adaptive fixation through mechanical expansion. The adjustment switch 7 rotates to change the radial position of the internal support plate 62, adapting to varying sleeve inner diameters. The tension rod 4 provides adjustable tension to accommodate varying retaining wall spacing. This adaptability allows for adaptability to transformer bobbins of various specifications, reducing equipment costs and improving versatility. Furthermore, the machine is simple to operate and offers high winding stability.

[0081] In some embodiments of this application, continue to refer to Figure 1 and Figure 2 As shown, the frame 1 includes a base 11 and a baffle 12 vertically mounted on the top of the base 11. The baffle 12 consists of a first baffle 121, a second baffle 122, and a connecting baffle 123. The first baffle 121 and the second baffle 122 are located on the left and right sides of the base 11, respectively. The connecting baffle 123 is located at the rear side of the base 11 and is fixedly connected to the first baffle 121 and the second baffle 122 at both ends, forming a "U"-shaped frame structure.

[0082] The fixing plate 2 is fixedly connected to one side of the base 11 close to the first baffle 121 , and its front end extends to the outside of the frame 1 to provide installation space for the adjustable fixture 6 and the stretching rod 4 .

[0083] In this embodiment, the base 11 is used as the basic platform. The three-sided enclosure structure composed of the first baffle 121, the second baffle 122 and the connecting baffle 123 enhances the overall rigidity of the frame 1 and prevents the equipment from being displaced due to vibration during the winding process. The fixed plate 2 is installed on the left side of the base 11, and its front end extends beyond the frame of the frame 1, making it easier for the operator to install the transformer skeleton. This layout allows the adjustable fixture 6 to be located outside the frame 1, making it easier to insert and adjust the skeleton. At the same time, space is reserved inside the frame 1 for installing power components such as the gear transmission system. This embodiment optimizes the internal layout of the equipment, taking into account both operational convenience and structural stability, and is suitable for high-frequency production scenarios.

[0084] In some embodiments of the present application, reference Figure 1-Figure 4 As shown, the machine also includes a rocker 8 and a gear transmission system. The rocker 8 is located on the side of the frame 1 away from the adjustable fixture 6. The gear transmission system includes a gear fixing rod 13, a gear fixing rod 2 14, a gear 131, a gear 2 141, a bevel gear 143, and a bevel gear 2 144.

[0085] Specifically, the ends of gear fixing rod 13 extend through the lower portions of first baffle 121 and second baffle 122, while the ends of gear fixing rod 2 extend through the upper portions of first baffle 121 and second baffle 122. Gear 131 is fixed to the right end of gear fixing rod 13, outside second baffle 122, and is hinged to rocker 8. Gear 2 141 is fixed to the right end of gear fixing rod 2 14 and meshes with gear 131. Bevel gear 143 is fixed to the middle of gear fixing rod 2 14, near first baffle 121. The central axis of bevel gear 144 is fixedly connected to the rear end of adjustable jig 6 and meshes with bevel gear 143.

[0086] When rocker 8 is operated, gear 131 rotates with it, driving gear 2 141, which in turn rotates gear fixing rod 2 14. Bevel gear 143 on gear fixing rod 2 14 rotates accordingly, driving bevel gear 2 144. Ultimately, this rotation drives the internal support structure and transformer frame via the rotating rod 66 of the adjustable fixture 6, completing the winding. This transmission path, through two-stage gear reduction (from gear 131 to gear 2 141) and helical gear reversing (from bevel gear 1 143 to bevel gear 2 144), converts the lateral swing of rocker 8 into rotation of the adjustable fixture 6, ensuring smooth power transmission.

[0087] The gear transmission system of this embodiment achieves power transmission through gear meshing. The two-stage reduction design reduces operating torque, and the helical gear reversing ensures that the winding direction meets process requirements, such as clockwise winding. Compared with direct drive, the winding machine of this embodiment is more labor-saving to operate and has more precise speed control, making it suitable for winding wires of different diameters.

[0088] In some embodiments of this application, continue to refer to Figure 1-Figure 5 As shown, it also includes: a support plate 3 and a counter 5. The support plate 3 is fixedly connected to one side of the base 11 close to the second baffle 122, and the counter 5 is installed on the top of the support plate. The counter 5 includes a display 51 and a counting gear 52.

[0089] Furthermore, the gear transmission system also includes gear three 142 and chain 15. Gear three 142 is fixed in the middle of gear fixing rod two 14 near the second baffle 122, and the counting gear 52 is engaged with gear three 142 through the chain 15; the counting gear 52 is located outside the display 51 and is connected to the inside of the display 51 through a connecting rod. The display 51 is used to display the number of winding coils.

[0090] When the second gear fixing rod 14 rotates, the third gear 142 rotates synchronously, driving the counting gear 52 to rotate through the chain 15; the counting gear 52 transmits the number of rotations to the internal counting mechanism of the display 51 through the connecting rod, and displays the number of winding coils in real time.

[0091] In this embodiment, chain 15 ensures synchronous rotation of counting gear 52 and gear three 142, preventing slippage and counting errors. Display 51 directly reflects the number of rotations of counting gear 52 via a mechanical linkage, ensuring reliable data. This embodiment achieves quantitative control of the winding process, avoiding manual counting errors and improving production consistency.

[0092] In some embodiments of the present application, the counter 5 has a reset function. A reset button on the display 51 is connected to an internal reset mechanism. When the reset button is pressed, the ratchet or gear set inside the counter 5 is pushed to the initial position, simultaneously releasing the lock of the counting gear 52, allowing the counting gear 52 to rotate freely, thereby clearing the displayed value to zero.

[0093] The zero reset operation is usually performed after winding is completed. When the zero reset button is pressed, the internal return spring is compressed, pushing the counting gear 52 to rotate in the opposite direction to the initial position, and the pointer or digital display of the display 51 returns to zero. This function is convenient for repeated counting when winding the same bobbin multiple times, or resetting the data after changing the bobbin.

[0094] In this embodiment, the mechanical zero reset design is simple in structure, does not require electronic components, and is highly reliable. The reset spring provides automatic return force, making operation convenient. This function expands the application scenarios of the counter 5 and adapts to the needs of continuous production.

[0095] In some embodiments of the present application, reference Figure 6 and Figure 7 As shown, the adjustable jig 6 includes a positioning head 61, an inner support plate 62, an inner support rod 63, a positioning plate 64, an inner support wheel 65, a rotating rod 66, and a positioning rod 67. The positioning head 61 is a conical metal head located at the front end of the jig; the inner support plate 62 is a four-piece circular arc plate arranged in a circular array around the rotating rod 66; the positioning plate 64 is a circular plate located at the rear side of the inner support plate 62; the positioning rod 67 is fixed to the back side of the positioning plate 64; the inner support wheel 65 is fixed to the rotating rod 66 and is slidably connected to the inner support rod 63; the rotating rod 66 runs through the center of the jig, with the front end fixed to the bottom surface of the positioning head 61 and the rear end passing through the positioning plate 64 and the positioning rod 67 and connected to the adjustment switch 7.

[0096] When the adjustment switch 7 is rotated, the rotating rod 66 rotates the inner support wheel 65. The sliding groove 651 on the inner support wheel 65 drives the crossbar 632 of the inner support rod 63 to move radially, causing the inner support plates 62 to expand or contract. The four inner support plates 62 move synchronously, clinging to or releasing the inner wall of the transformer frame sleeve to achieve fixation or release. The conical structure of the positioning head 61 facilitates automatic centering when the sleeve is inserted. The positioning plate 64 limits the axial displacement of the frame, and the positioning rod 67 provides axial positioning for the rotating rod 66.

[0097] In this embodiment, the circumferential array distribution of the inner support plate 62 ensures uniform force and avoids deformation of the sleeve; the sliding groove 651 of the inner support wheel 65 converts rotational motion into radial linear motion, realizing stepless adjustment of the inner support size, which can adapt to sleeves with a wide inner diameter range and break through the specification limitations of traditional fixtures.

[0098] In some embodiments of the present application, reference Figure 8 As shown, the inner support rod 63 includes a vertical rod 631 and a horizontal rod 632. The horizontal rod 632 is arranged in parallel with the rotating rod 66. One end of the vertical rod 631 is fixed below the inner support plate 62, and the other end is fixed to the horizontal rod 632. The inner support wheel 65 is provided with a sliding groove 651, and the horizontal rod 632 is inserted into the sliding groove 651 and slides along it.

[0099] Specifically, in actual application, there are two inner support wheels 65 with a diameter of 10 mm and a thickness of 5 mm. Each inner support wheel 65 has four sliding grooves 651 . There are four cross bars 632 , each passing through a sliding groove 651 .

[0100] When the inner support wheel 65 rotates, the trajectory of the sliding groove 651 drives the crossbar 632 to move radially, driving the inner support plate 62 to expand or contract synchronously through the vertical rod 631. The spiral design of the sliding groove 651 ensures that the displacement of the crossbar 632 is linearly related to the rotation angle of the inner support wheel 65, achieving precise adjustment of the inner support size.

[0101] This embodiment eliminates the jamming phenomenon during the adjustment process through the trajectory design of the sliding groove 651, ensuring smooth movement of the inner support plate 62; the vertical connection between the vertical rod 631 and the horizontal rod 632 effectively transmits the radial force to the inner support plate 62, avoiding structural deformation, improving the sensitivity and stability of the adjustment, and is suitable for high-precision winding requirements.

[0102] In some embodiments of the present application, reference Figure 9 and Figure 10 As shown, the adjustment switch 7 includes a connection port 71, a connecting rod 72, a switch spring 73, a rotating gear 1 74, a rotating gear 2 75, and a knob 76. The knob 76 is located at the end of the adjustment switch 7 and is fixedly connected to the connecting rod 72. The rotating gear 2 75 is fixed to the rotating rod 66, near the knob 76. The rotating gear 1 74 is fixed to the connecting rod 72 and located on the back side of the rotating gear 2 75. The teeth of the rotating gear 1 74 and the rotating gear 2 75 mesh in opposite directions. The switch spring 73 is located at the distal end of the rotating gear 1 74, with one end fixed to the connecting rod 72 and the other end in contact with the rotating gear 1 74.

[0103] When knob 76 is rotated, connecting rod 72 rotates rotating gear 1 74. Since rotating gear 1 74 meshes in opposite directions with rotating gear 2 75, rotating gear 2 75 rotates in the opposite direction as rotating gear 1 74 rotates, in turn driving rotating rod 66 to adjust the dimensions of the internal support structure. Switch spring 73 provides axial force, pressing rotating gear 1 74 toward rotating gear 2 75, eliminating meshing play and preventing rebound after adjustment.

[0104] This embodiment realizes the rotation direction of the knob 76 through a reverse meshing gear set. Furthermore, the preload force of the switch spring 73 ensures that the gears are tightly meshed, avoiding dimensional changes caused by vibration, and effectively improving the accuracy and retention of the adjustment.

[0105] In some embodiments of the present application, reference Figure 11 and Figure 12As shown, the stretching rod 4 comprises a baffle 41, an outer tube 42, a slider 43, a spring 44, and a telescopic rod 45. The baffle 41 is an alloy metal sheet, positioned away from the fixed plate 2, and is hingedly connected to the slider 43 and rotatable about its axis. The slider 43 is a semi-cylindrical structure, located in a semi-circular guide groove within the outer tube 42 and protruding from the front end of the outer tube 42. One end of the spring 44 is fixed to the rear end of the slider 43, and the other end is fixed to the telescopic rod 45. The telescopic rod 45 extends through the outer tube 42 and is provided with an external thread on its surface. The inner wall of the outer tube 42 has an internal thread, and the two are threadedly connected.

[0106] When installing the transformer frame, the retaining plate 41 contacts the frame retaining wall, and the slider 43 slides in the guide groove of the outer tube 42, compressing the spring 44 to generate tension. When the telescopic rod 45 is rotated, its external thread engages with the internal thread of the outer tube 42, adjusting the axial position of the telescopic rod 45, changing the preload of the spring 44, and thus adjusting the tension. The hinged design of the retaining plate 41 allows it to adapt to the inclination angle of the retaining wall, ensuring a perfect contact surface.

[0107] This embodiment achieves stepless tension adjustment through the threaded connection between the telescopic rod 45 and the outer cylinder 42. A spring 44 provides tension to ensure that the retaining plate 41 is fixed to the retaining wall. The semicircular structure of the slider 43 cooperates with the guide groove of the outer cylinder 42 to limit rotational freedom, ensuring that the telescopic rod 45 moves only in the axial direction. This solution improves the convenience of tension adjustment and the stability of tension, and is suitable for transformer bobbins with different retaining wall spacings.

[0108] In some embodiments of the present application, gear three 142 and the counting gear 52 have the same number of teeth, and rotating gear one 74 and rotating gear two 75 have the same size and number of teeth. Gear three 142 and counting gear 52 are both spur gears with the same number of teeth to ensure a transmission ratio of 1:1; for example, in actual applications, the module of counting gear 52 and gear three 142 can be 1.75, the number of teeth is 20, the pressure angle is 14.5, and the face width is 7mm. When the gear fixing rod two 14 rotates, gear three 142 and counting gear 52 transmit the number of rotations at a ratio of 1:1, ensuring that the number of turns displayed on the display 51 is consistent with the actual number of windings;

[0109] Furthermore, the modules and teeth of rotating gear 1 74 and rotating gear 2 75 are identical, achieving synchronized rotational speeds during reverse meshing. Specifically, the synchronized rotation of rotating gear 1 74 and rotating gear 2 75 ensures that the adjustment amount of adjustment switch 7 corresponds to the dimensional change of the internal support structure, avoiding adjustment lag or overshoot.

[0110] The design of gears with the same number of teeth eliminates transmission errors and ensures accurate counting. The synchronously rotating gear set improves the linearity of adjustment, ensuring a strict correspondence between the internal support size and the rotation angle of knob 76. The parameter constraints in this example optimize the control accuracy of the device.

[0111] Reference Figure 13 As shown, combined with the contents of the above embodiments, it can be seen that when the transformer winding machine provided by the present application is used, the transformer skeleton sleeve is first inserted into the inner support structure of the adjustable fixture 6, the adjustment switch 7 is pressed and the adjustable fixture 6 is rotated to expand the inner support plate 62. After the expanded size of the inner support plate 62 matches the transformer skeleton, the adjustment switch 7 is released to lock the expanded size of the inner support plate 62 and fix the sleeve. The telescopic rod 45 of the stretching rod 4 is adjusted so that the baffle 41 tightens the skeleton retaining wall; the rocker 8 is rotated to drive the skeleton to rotate through the gear transmission system, and the counter 5 displays the number of winding turns in real time; after the winding is completed, the zero button is pressed to reset the counter 5, and the adjustment switch 7 is pressed again to rotate the adjustable fixture 6 to release the skeleton.

[0112] In summary, the transformer winding machine provided in this application utilizes an adjustable fixture to accommodate various sleeve sizes, and a stretching rod to accommodate varying retaining wall spacing, breaking through the "one machine, one fixture" limitation of traditional equipment. Mechanical adjustment allows for simple operation, and a counter displays winding data intuitively. The dual fixation of internal support and external pull further eliminates the risk of displacement and ensures winding stability. This solution achieves miniaturization, universalization, and intelligentization of transformer winding, making it suitable for the mass production of precision coils for electronic transformers, inductors, and other applications.

[0113] Those skilled in the art will readily conceive of other embodiments of the present disclosure after considering the disclosure of the specification and examples. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in this disclosure.

Claims

1. A transformer winding machine, characterized in that: include: Rack (1); A fixing plate (2) is mounted on the frame (1), and an adjustable jig (6) and a stretching rod (4) are fixed to one end of the fixing plate (2) away from the frame (1); The adjustable jig (6) is located at the front center of the fixed plate (2) and has an internal support structure, and the internal support structure is sleeved inside the transformer skeleton sleeve; The rear end of the adjustable fixture (6) is connected to an adjustment switch (7), and the adjustment switch (7) is used to rotate and adjust the size of the inner support structure; There are two stretching rods (4), which are symmetrically arranged on both sides of the adjustable jig (6); one end of the stretching rod (4) away from the adjustable jig (6) is connected to the transformer frame retaining wall; the stretching rod (4) is used to tighten and fix the retaining wall of the transformer frame.

2. A transformer winding machine according to claim 1, characterized in that: The frame (1) comprises a base (11) and a baffle (12) vertically mounted on the top of the base (11); The baffles (12) have three members, namely a first baffle (121), a second baffle (122) and a connecting baffle (123); the first baffle (121), the second baffle (122) and the connecting baffle (123) are respectively located on the left side, the right side and the rear side of the base (11); the first baffle (121) and the second baffle (122) are symmetrically arranged; and two ends of the connecting baffle (123) are respectively fixedly connected to the first baffle (121) and the second baffle (122); The fixing plate (2) is fixedly connected to a side of the base (11) close to the first baffle (121).

3. A transformer winding machine according to claim 2, characterized in that: Also includes: rocker (8) and gear transmission system; The rocker (8) is located outside the frame (1) and on a side away from the adjustable fixture (6); The gear transmission system comprises: a gear fixing rod 1 (13), a gear fixing rod 2 (14), a gear 1 (131), a gear 2 (141), a bevel gear 1 (143) and a bevel gear 2 (144); The two ends of the first gear fixing rod (13) are respectively passed through the lower parts of the first baffle (121) and the second baffle (122), and the two ends of the second gear fixing rod (14) are respectively passed through the upper parts of the first baffle (121) and the second baffle (122); The gear 1 (131) is fixed to one end of the gear fixing rod 1 (13) and is arranged outside the second baffle (122), and the gear 1 (131) is hinged to the rocker (8); The second gear (141) is fixed to one end of the second gear fixing rod (14) and is arranged outside the second baffle (122) to mesh with the first gear (131); The helical gear 1 (143) is fixed at the middle of the gear fixing rod 2 (14) and is close to the first baffle (121); The central axis of the helical gear 2 (144) is fixedly connected to the rear end of the adjustable fixture (6) and meshes with the helical gear 1 (143).

4. A transformer winding machine according to claim 3, characterized in that: A support plate (3) is also mounted on the frame (1), and the support plate (3) is fixedly connected to a side of the base (11) close to the second baffle (122); A counter (5) is installed on the top of the support plate (3), and the counter (5) includes a display (51) and a counting gear (52); The gear transmission system further includes: a gear three (142) and a chain (15); The gear three (142) is fixed at the middle of the gear fixing rod two (14) and close to the second baffle (122), and the counting gear (52) is meshed with the gear three (142) through the chain (15); The counting gear (52) is located outside the display (51) and is connected to the inside of the display (51) via a connecting rod. The display (51) is used to display the number of windings of the transformer bobbin.

5. A transformer winding machine according to claim 4, characterized in that: A reset button is provided on the display (51) of the counter (5), and the reset button is used to completely release the winding of the transformer skeleton.

6. A transformer winding machine according to claim 5, characterized in that: The adjustable fixture (6) comprises: a positioning head (61), an inner support plate (62), an inner support rod (63), a positioning plate (64), an inner support wheel (65), a rotating rod (66) and a positioning rod (67); The positioning head (61) is a conical metal head structure and is far away from the adjustment switch (7); the inner support plate (62) is four arc plates and is distributed in a circular array around the rotating rod (66); The positioning plate (64) is a circular plate and is located on a side of the inner support plate (62) away from the positioning head (61); The positioning rod (67) is fixedly connected to a side of the positioning plate (64) facing away from the inner support plate (62); The inner support wheel (65) is fixed on the rotating rod (66), the inner support wheel (65) is slidably connected to the inner support rod (63), the inner support rod (63) is fixed below the inner support plate (62) and is slidably connected to the inner support wheel (65), and when the inner support wheel (65) rotates, the inner support rod (63) moves radially along the inner support wheel (65); The rotating rod (66) passes through the center of the adjustable fixture (6), the front end of the rotating rod (66) is fixed to the ground of the positioning head (61), and the rear end passes through the positioning plate (64) and the positioning rod (67) and is connected to the adjustment switch (7).

7. The transformer winding machine according to claim 6, characterized in that: The inner support rod (63) includes: a vertical rod (631) and a horizontal rod (632); The cross bar (632) and the rotating bar (66) are arranged in parallel, and one end of the vertical bar (631) is fixed below the inner support plate (62), and the other end is fixed on the cross bar (632); The inner support wheel (65) is provided with a sliding groove (651), and the cross bar (632) is inserted into the sliding groove (651) and slides along the sliding groove (651).

8. A transformer winding machine according to claim 6 or 7, characterized in that: The adjustment switch (7) comprises a connecting port (71), a connecting rod (72), a switch spring (73), a rotating gear 1 (74), a rotating gear 2 (75) and a knob (76); The knob (76) is located at an end of the adjustment switch (7) away from the adjustable fixture (6) and is fixedly connected to the connecting rod (71); The second rotating gear (75) is fixed on the rotating rod (66) and is close to the knob (76); the first rotating gear (74) is fixed on the connecting rod (72) and is arranged on the side of the second rotating gear (75) facing away from the knob (76); The teeth of the rotating gear 1 (74) and the rotating gear 2 (75) are meshed in opposite directions; The switch spring (73) is located on a side of the rotating gear 1 (74) away from the rotating gear 2 (75), one end of the switch spring (73) is fixed to the connecting rod (72), and the other end is in contact with the rotating gear 1 (74) to provide elastic force to lock the rotating gear 1 (74) and the rotating gear 2 (75); The connecting port (71) is square and passes through the connecting rod (72) and the knob (76); the connecting rod (72) is sleeved in the positioning rod (67); the rotating rod (66) passes through the connecting port (71) and the knob (76) to connect to the second bevel gear (144).

9. The transformer winding machine according to claim 8, characterized in that: The stretching rod (4) comprises a blocking piece (41), an outer cylinder (42), a slider (43), a spring (44) and a telescopic rod (45); The blocking piece (41) is arranged away from the fixed plate (2), the blocking piece (41) is an alloy metal sheet, the blocking piece (41) is hinged to the slider (43), and rotates around the axis of the slider (43); The slider (43) is a semi-cylindrical structure, located in a semi-circular guide groove inside the outer cylinder (42), and protruding from one end of the outer cylinder (42) close to the baffle (41), and the slider (43) is slidably connected to the outer cylinder (42); One end of the spring (44) is fixed to the end of the slider (43) away from the baffle (41), and the other end of the spring (44) is fixed to the telescopic rod (45). The telescopic rod (45) passes through the outer cylinder (42) and is arranged on the fixed plate (2). The surface of the telescopic rod (45) is provided with an external thread, and the inner wall of the outer cylinder (42) is provided with an internal thread. The telescopic rod (45) is threadedly connected to the inner wall of the outer cylinder (42); The transformer frame is sleeved on the outside of the adjustable fixture (6), and the retaining wall of the transformer frame is located outside the positioning plate (64) and contacts the retaining piece (41) of the stretching rod (4).

10. The transformer winding machine according to claim 8, characterized in that: The gear three (142) and the counting gear (52) are both spur gears and have the same number of teeth. The rotating gear one (74) and the rotating gear two (75) are the same in size and number of teeth.

Images