Magnetic core assembling and adhesive tape wrapping testing machine

Abstract

The invention discloses a magnetic core assembling and adhesive tape wrapping testing machine, and relates to the technical field of magnetic core processing, the magnetic core assembling and adhesive tape wrapping testing machine comprises a rotating disc and a fixed cylinder with the bottom coaxially rotating, the top of the rotating disc is provided with four annularly-arrayed object placing grooves, the bottom is provided with corresponding walking grooves, the walking grooves are communicated with the corresponding walking grooves, clamping mechanisms horizontally slide in the walking grooves, and adjusting mechanisms are arranged in the walking grooves; the clamping mechanism comprises a rotating disc; according to the magnetic core clamping device, the magnetic core is clamped through the clamping mechanism, the first piston mechanism is compressed according to the counter-acting force generated by clamping, then the second piston mechanism is used for controlling the clamping mechanism to slide in the walking groove, and the distance between the clamped magnetic core and the axis of the rotary disc can be accurately changed. Therefore, when the adhesive tape is cut off, the length of the broken end can be automatically adjusted along with the change of the size of the magnetic core, and the problem that the broken end is too long and inconvenient to smooth after being cut off is solved, so that the magnetic core encapsulation quality is ensured, defective products caused by the broken end problem of the adhesive tape are reduced, and the qualified rate of products is improved.

Description

Technical Field

[0001] This invention relates to the field of magnetic core processing technology, specifically to a magnetic core assembly and tape-wrapping testing machine. Background Technology

[0002] In the field of electronic component manufacturing, magnetic cores, as important magnetic components, are widely used in equipment such as transformers and inductors. To improve the performance and stability of magnetic cores, they are usually wrapped with tape for insulation, fixation, and protection. The magnetic core assembly tape-wrapping testing machine is an automated device specifically designed for the tape-wrapping step in the magnetic core assembly process.

[0003] In existing magnetic core coating processes, a high rate of defective products exists. One key reason is that the cut ends of the tape are too long after coating. In traditional coating equipment, the cutting position and length of the tape are usually fixed and cannot be flexibly adjusted according to the actual size of the magnetic core. When the magnetic core size is small, the cut ends of the tape are too long. During the subsequent coating process, these excessively long ends are not easy to smooth out. For example, excessively long ends are prone to self-adhesion with other parts of the tape, resulting in messy tape winding and deviation from the predetermined coating trajectory. This not only affects the appearance quality of the magnetic core but also reduces its insulation performance and mechanical stability, thereby increasing the defect rate and production costs.

[0004] In view of the above, this application is hereby submitted. Summary of the Invention

[0005] The purpose of this invention is to provide a magnetic core assembly tape testing machine to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides a magnetic core assembly tape testing machine, comprising a turntable and a fixed cylinder coaxially rotating at the bottom. The turntable has four annularly arrayed placement slots at its top and corresponding traveling slots at its bottom, with the two communicating with each other. A clamping mechanism slides horizontally within the traveling slot, and an adjustment mechanism is provided within the clamping mechanism. The clamping mechanism includes: A rotating disk has multiple sliders arranged in a circular array about its axis sliding on its top. A piston mechanism is provided on the side wall of the slider near the axis of the rotating disk. A limit plate is fixed to the telescopic end of the piston mechanism. The bottom of the slider passes through the rotating disk and is connected to a telescopic tube. Multiple telescopic tubes are connected to the same fixed ring. A horizontal air storage cylinder is connected to the bottom of the fixed ring near the axis of the turntable. A horizontal piston mechanism two is fixed to the end of the air storage cylinder near the axis of the turntable. A vertical support column is fixed to the telescopic end of the piston mechanism two away from the air storage cylinder. The support column rotates coaxially on the inner wall of the bottom of the fixed cylinder. A bearing bracket is rotatably connected to the bottom of the rotating disk. The bearing bracket slides horizontally on the bottom of the rotating disk. Gear 1 and Gear 2 are rotatably connected to each other at the bottom of the bearing bracket. A broken internal tooth ring is provided on the inner arc wall of the fixed cylinder. Gear 1 and the broken internal tooth ring are meshed and matched.

[0007] Furthermore, a limiting disk is coaxially rotatably provided at the top of the rotating disk, and the limiting disk also slides horizontally within the traveling groove. The top of the limiting disk has multiple vertically penetrating limiting channels arranged in a circular array about its axial direction. The top of the rotating disk has multiple vertically penetrating sliding channels arranged in a circular array about its axial direction. The multiple limiting channels and multiple sliding channels correspond one-to-one with multiple sliders. The horizontal cross-section of the sliding channel is arc-shaped, with one end facing the axis of the rotating disk and the other end bent towards the outer edge of the rotating disk and tangent to it. The sliders are respectively arranged through the limiting channels and sliding channels in the vertical direction. The telescopic tube is arranged through the sliding channels. The working radius of gear one is smaller than that of gear two. Gear two is rotatably penetrating a fixed shaft along its axial direction. The top of the fixed shaft rotatably penetrates the bearing bracket and the rotating disk in sequence and is coaxially fixed to the inner wall of the bottom of the limiting disk. A fixed sleeve shaft is rotatably sleeved on the outside of the fixed shaft. The two ends of the fixed sleeve shaft are coaxially fixed to the bottom of the rotating disk and the top of gear two, respectively.

[0008] Furthermore, the fixed ring is a hollow structure with an annular rotating groove at its bottom. A sealing ring is rotatably installed at the bottom opening of the rotating groove. A connecting pipe is fixed at the bottom of the sealing ring corresponding to the position of the air storage cylinder. The connecting pipe connects the air storage cylinder and the fixed ring, and the telescopic pipe connects the piston mechanism one and the fixed ring. The radius of the inner arc wall section of the piston mechanism one is greater than the radius of the inner arc wall section of the piston mechanism two. A gear three is coaxially fixed at the bottom of the gear two. The working radius of the gear three is smaller than the working radius of the gear two. A broken external toothed ring is fixed on the inner wall of the bottom of the fixed cylinder. The broken external toothed ring meshes with the gear three and the support column does not contact the clamping mechanism or the adjusting mechanism. A driving mechanism is provided directly below one of the walking grooves. The driving mechanism includes a stepper motor fixed on the inner wall of the bottom of the fixed cylinder. The output shaft of the stepper motor is coaxial with the rotating disk in the clamping mechanism in the walking groove.

[0009] Furthermore, a spline shaft is coaxially fixed on the output shaft of the stepper motor, and a spline sleeve is coaxially slidably fitted on the outside of the spline shaft. A horizontal fixed plate is fixed at the bottom of the outer arc wall of the spline sleeve. Multiple vertically arranged limiting posts are fixed on the top outer edge of the fixed plate in a circular array about its axial direction. The fixed plate is located below the gear three, and multiple limiting grooves are opened on the side wall of the gear three near the fixed plate in a circular array about its axial direction. An electric push rod is provided on one side of the stepper motor and is fixed on the bottom inner wall of the fixed cylinder. A limiting clamp is fixed to the telescopic end of the electric push rod. The limiting clamp and the fixed plate are located in the same horizontal plane. The vertical cross section of the limiting clamp along the radial direction of the fixed plate is "door" shaped and the notch faces the fixed plate. The outer edge of the fixed plate rotates in the notch and the limiting posts do not contact the limiting clamp.

[0010] Furthermore, a connecting shaft is coaxially fixed to the top of the spline sleeve. The top of the outer arc wall of the connecting shaft is provided with multiple sliding grooves arranged in a circular array about its axial direction. The length direction of the sliding grooves is consistent with the radial direction of the connecting shaft. A limiting block is movably provided in the sliding groove. The end of the limiting block away from the sliding groove is chamfered on both sides along the vertical direction. A connecting sleeve shaft is coaxially sleeved on the outside of the connecting shaft. Multiple sliding grooves are arranged in a circular array about its axial direction on the inner arc wall of the connecting sleeve shaft. The length direction of the sliding grooves is consistent with the radial direction of the connecting sleeve shaft. The multiple limiting blocks correspond one-to-one with the multiple sliding grooves and are interlocked with each other.

[0011] Compared with the prior art, the beneficial effects of the present invention are: 1. The magnetic core is clamped by a clamping mechanism, and the reaction force generated by clamping compresses piston mechanism one. Piston mechanism two then controls the clamping mechanism to slide within the travel groove, precisely changing the distance between the clamped magnetic core and the turntable axis. This allows the length of the tape cut to automatically adjust according to the magnetic core size, avoiding the problem of excessively long cut ends that are difficult to smooth out. This ensures the quality of the magnetic core coating, reduces defective products caused by tape breaks, and improves the product qualification rate.

[0012] 2. This design can automatically adjust the coating parameters according to the magnetic cores of different sizes, and has strong versatility and adaptability. It can achieve precise coating for small or large magnetic cores within a large size range, meeting the production needs of diverse magnetic core products in the market and improving equipment utilization and production efficiency. Attached Figure Description

[0013] Figure 1 A schematic diagram of the overall structure of a magnetic core assembly and tape testing machine; Figure 2 This is a schematic diagram showing the connection relationship between the turntable and the fixed cylinder in a magnetic core assembly and tape testing machine. Figure 3This is a schematic diagram showing the positional relationship between the turntable and the fixed cylinder in a magnetic core assembly and tape testing machine. Figure 4 This is a schematic diagram of the turntable in a magnetic core assembly and tape testing machine from an elevation view. Figure 5 An exploded view of the adjustment mechanism in a magnetic core assembly and packaging tape testing machine; Figure 6 An exploded view of the clamping mechanism in a magnetic core assembly and packaging tape testing machine; Figure 7 This is a schematic diagram showing the connection relationship between the slider and the retaining ring in a magnetic core assembly and tape testing machine. Figure 8 This is a schematic diagram showing the positional relationship between the drive mechanism and gears one, two, and three in a magnetic core assembly and tape testing machine. Figure 9 This is a schematic diagram of the drive mechanism in a magnetic core assembly and tape testing machine.

[0014] In the picture: 10. Turntable; 101. Storage trough; 102. Traveling trough; 11. Fixed cylinder; 111. Damaged internal toothed ring; 112. Support column; 113. Damaged external toothed ring; 12. Feeding mechanism; 121. Unloading mechanism; 122. Cutter; 123. Belt conveyor mechanism; 20. Limiting plate; 21. Rotating plate; 22. Slider; 221. Telescopic tube; 23. Piston mechanism one; 24. Limiting plate; 25. Fixing ring; 26. Piston mechanism two; 261. Air tank; 30. Bearing bracket; 31. Gear 1; 32. Gear 2; 33. Gear 3; 34. Fixed shaft; 35. Fixed sleeve shaft; 40. Stepper motor; 41. Splined shaft; 42. Splined sleeve; 421. Connecting shaft; 422. Connecting sleeve shaft; 43. Fixed plate; 44. Limiting post; 45. Limiting groove; 46. Electric push rod; 47. Limiting clamp. Detailed Implementation

[0015] 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] Please see the appendix Figure 1 To be continued Figure 9The present invention provides a technical solution: including a feeding mechanism 121 disposed on the side of the turntable 10 away from the side where the driving mechanism is disposed, and a feeding mechanism 12 disposed on the side adjacent to the driving mechanism. The working directions of the feeding mechanism 12 and the feeding mechanism 121 are perpendicular. The turntable 10 is provided with a belt conveying mechanism 123 on the side of the driving mechanism close to the feeding mechanism 12, and a cutter 122 on the side away from the feeding mechanism 12. It also includes a turntable 10 and a fixed cylinder 11 that rotates coaxially at the bottom. The turntable 10 has four circular arrayed storage slots 101 at the top and corresponding walking slots 102 at the bottom, which are connected to each other. A clamping mechanism slides horizontally in the walking slot 102, and an adjustment mechanism is provided inside it. The clamping mechanism includes: A rotating disk 21 has multiple sliders 22 arranged in a circular array about its axis sliding on its top. A piston mechanism 23 is provided on the side wall of the slider 22 near the axis of the rotating disk 21. A limit plate 24 is fixed to the telescopic end of the piston mechanism 23. The bottom of the slider 22 passes through the rotating disk 21 and is connected to a telescopic tube 221. Multiple telescopic tubes 221 are connected to the same fixed ring 25. A horizontal air storage cylinder 261 is connected to the bottom of the fixed ring 25 near the axis of the turntable 10. A horizontal piston mechanism 26 is fixed to the end of the air storage cylinder 261 near the axis of the turntable 10. A vertical support column 112 is fixed to the telescopic end of the piston mechanism 26 away from the air storage cylinder 261. The support column 112 rotates coaxially on the inner wall of the bottom of the fixed cylinder 11. A bearing bracket 30 is rotatably connected to the bottom of the rotating disk 21. The bearing bracket 30 slides horizontally on the bottom of the rotating disk 10. The bottom of the bearing bracket 30 is provided with a meshing gear 31 and a gear 32. A defective internal gear ring 111 is provided on the inner arc wall of the fixed cylinder 11. The gear 31 and the defective internal gear ring 111 mesh and match.

[0017] It should be noted that, for ease of description, the four storage slots 101 on the top of the turntable 10 are sequentially labeled as feeding port, packaging port, standby port, and unloading port, along the feeding mechanism 12 in a clockwise direction from a top view to the unloading mechanism 121. The feeding mechanism 12 is positioned directly opposite the feeding port, the unloading mechanism 121 is positioned directly opposite the unloading port, and the drive mechanism is positioned directly below the packaging port. The feeding mechanism 12, the unloading mechanism 121, the belt conveyor mechanism 123, and the cutter 122 are all existing technologies and will not be described in detail. A drive motor (not shown in the figure) is provided on the outside of the turntable 10 to drive its rotation. The drive motor can drive the turntable 10 to rotate 90 degrees at fixed intervals. Furthermore, for better stability, two sets of this design can be symmetrically arranged in the vertical direction. That is, when the magnetic core is placed vertically, the two ends of the magnetic core are symmetrically provided with the same design in the vertical direction. That is, both ends have clamping mechanisms with the same structure to clamp the ends. This is especially useful for some high-frequency transformer cores and sensor cores, most of which are rod-shaped structures. When applying glue, there is still space at the ends and it is not necessary to completely apply glue. The clamping mechanism has clamping space to avoid the clamping mechanism interfering with the glue application.

[0018] Please see the appendix Figure 1 To be continued Figure 9 The present invention provides a technical solution: a limiting disk 20 is coaxially rotatably provided at the top of the rotating disk 21, and the limiting disk 20 slides horizontally in the traveling groove 102. The top of the limiting disk 20 has a plurality of vertically penetrating limiting channels arranged in a ring array about its axial direction. The top of the rotating disk 21 has a plurality of vertically penetrating sliding channels arranged in a ring array about its axial direction. The plurality of limiting channels and the plurality of sliding channels correspond one-to-one with the plurality of sliders 22. The horizontal cross section of the sliding channel is arc-shaped, with one end facing the axis of the rotating disk 21 and the other end bent towards the outer edge of the rotating disk 21 and tangential to it. The sliders 22 are respectively arranged to pass through the limiting channels and the sliding channels in the vertical direction. The telescopic tube 221 is arranged to pass through the sliding channels. The working radius of gear 31 is smaller than that of gear 32. Gear 32 rotates axially through a fixed shaft 34. The top end of the fixed shaft 34 rotates through the bearing bracket 30 and the rotating disk 21 in sequence and is coaxially fixed to the inner wall of the bottom of the limiting disk 20. A fixed sleeve shaft 35 is rotatably sleeved on the outside of the fixed shaft 34. The two ends of the fixed sleeve shaft 35 are coaxially fixed to the bottom of the rotating disk 21 and the top of gear 32, respectively. The fixed ring 25 is a hollow structure with an annular rotating groove at its bottom. A sealing ring is rotatably installed at the bottom opening of the rotating groove. A connecting pipe is fixed at the bottom of the sealing ring corresponding to the position of the gas storage cylinder 261. The connecting pipe connects the gas storage cylinder 261 and the fixed ring 25. The telescopic pipe 221 connects the piston mechanism 1 23 and the fixed ring 25. The radius of the inner arc wall section of the piston mechanism 1 23 is greater than the radius of the inner arc wall section of the piston mechanism 26. Gear 33 is coaxially fixed at the bottom of gear 2 32. The working radius of gear 33 is smaller than that of gear 2 32. A broken external toothed ring 113 is fixed on the inner wall of the bottom of the fixed cylinder 11. The broken external toothed ring 113 meshes with gear 3 33 and the support column 112 does not contact the clamping mechanism or the adjustment mechanism. A driving mechanism is provided directly below one of the walking grooves 102. The driving mechanism includes a stepper motor 40 fixed on the inner wall of the bottom of the fixed cylinder 11. The output shaft of the stepper motor 40 is coaxial with the rotating disk 21 in the clamping mechanism in the walking groove 102.

[0019] It should be noted that: the feeding mechanism 12 vertically conveys the magnetic core to the clamping mechanism in the storage slot 101, and the drive motor drives the turntable 10 to rotate. The turntable 10 then drives the entire structure in the walking slot 102 to revolve. At this time, the gear 31 in the walking slot 102 will mesh with the incomplete internal gear ring 111 on the inner arc wall of the fixed cylinder 11. The rotation of the gear 31 drives the gear 32 to rotate, thereby making the clamping mechanism work. Gear 2 32 drives the fixed sleeve shaft 35 to rotate, which in turn drives the rotating disk 21 to rotate. Under the joint restriction of the sliding channel on the rotating disk 21 and the limiting channel on the limiting disk 20, the slider 22 can only slide along the limiting channel. That is, at this time, multiple sliders 22 make synchronous centripetal or centrifugal movements. The bearing bracket 30 provides motion support during this period. Piston mechanism 1 23 and piston mechanism 26 have the same structural principle. Taking piston mechanism 1 23 as an example, it includes piston cylinder 1 and piston rod 1. Piston cylinder 1 is fixed on slider 22, and piston rod 1 is fixed at the end of limit plate 24. Piston mechanism 26 has the same structure. Piston cylinder 2 is fixed on bearing bracket 30, and piston rod 2 is fixed on the outer wall of support column 112. Both piston cylinder 1 and piston cylinder 2 are pre-filled with pressurized gas. As the clamping mechanism clamps the magnetic core, the piston mechanism 23 on the slider 22 approaches the magnetic core. When the limiting plate 24 contacts the magnetic core, it is subjected to the reaction force of the magnetic core, and the piston mechanism 23 is compressed. This forces the air in the piston mechanism 23 into the piston mechanism 26 through the telescopic tube 221 and the fixing ring 25, thereby pushing the telescopic end of the piston mechanism 26 to extend outward. The radius of the inner arc wall section of piston cylinder one is greater than that of the inner arc wall section of piston cylinder two, resulting in more gas in piston cylinder one per unit length than in piston cylinder two. This amplifies the stroke of piston mechanism one 23 on piston mechanism two 26. In one possible embodiment, gear two 32 is provided with a fan-shaped magnet at the top, and the gas storage cylinder 261 is provided with a ferromagnetic gate valve-like sealing valve. That is, only when the magnet rotates to the position directly below the sealing valve will the magnet attract the sealing valve to move, allowing the gas to flow. Specifically, the gear 31 remains sealed during engagement with the defective internal gear ring 111, which gradually increases the gas pressure. After disengagement, the gear opens momentarily, allowing gas to rush in, and then immediately closes again to form a seal to prevent backflow. When the gear 33 engages with the defective external gear ring 113, the sealing valve will reopen after all components are reset, allowing air to flow back into the piston mechanism 26. However, the extension end of piston mechanism 26 away from air storage cylinder 261 is fixed with support column 112. Support column 112 rotates coaxially on the inner wall of the bottom of fixed cylinder 11, playing a stable support role. Therefore, it will push the clamping mechanism away from the axis of turntable 10. Since the length of the incomplete inner tooth ring 111 is fixed, when the cross-sectional size of the magnetic core is small, the reaction force on piston mechanism 23 is small. Therefore, the clamping mechanism will be set closer to the axis of turntable 10. Conversely, when the cross-sectional size of the magnetic core is large, the reaction force on piston mechanism 23 is large, and more air is pressed into piston mechanism 26. As a result, the extension amount is greater, and the clamping mechanism will be set further away from the axis of turntable 10. Thus, the spacing between two adjacent magnetic cores is changed according to the size of the magnetic core. In this way, when the coating is performed, the length of the tape to be cut at the coating opening and the standby opening will change accordingly, thereby avoiding the phenomenon of excessively long tape breaks when coating small-sized magnetic cores.

[0020] Please see the appendix Figure 1 To be continued Figure 9 The present invention provides a technical solution: a spline shaft 41 is coaxially fixed on the output shaft of the stepper motor 40, a spline sleeve 42 is coaxially slidably sleeved on the outside of the spline shaft 41, a horizontal fixed disk 43 is fixed at the bottom of the outer arc wall of the spline sleeve 42, a plurality of vertically arranged limiting posts 44 are fixed on the top outer edge of the fixed disk 43 in a ring array about its axial direction, and the fixed disk 43 is located below the gear 33 and a plurality of limiting grooves 45 are opened on the side wall of the gear 33 near the fixed disk 43 in a ring array about its axial direction; The stepper motor 40 is provided with an electric push rod 46 on one side and the electric push rod 46 is fixed to the inner wall of the bottom of the fixed cylinder 11. The telescopic end of the electric push rod 46 is fixed with a limit clamp 47. The limit clamp 47 and the fixed plate 43 are located in the same horizontal plane. The vertical section of the limit clamp 47 along the radial direction of the fixed plate 43 is "door" shaped and the notch is set facing the fixed plate 43. The outer edge of the fixed plate 43 rotates in the notch and the limit post 44 does not contact the limit clamp 47. The spline sleeve 42 is coaxially fixed to the top of the connecting shaft 421. The top of the outer arc wall of the connecting shaft 421 is provided with a plurality of sliding grooves I distributed in a ring array about its axial direction. The length direction of the sliding grooves I is consistent with the radial direction of the connecting shaft 421. A limiting block is movably provided in the sliding grooves I. The ends of the limiting blocks away from the sliding grooves I are chamfered on both sides along the vertical direction. A connecting sleeve shaft 422 is coaxially sleeved on the outside of the connecting shaft 421. The inner arc wall of the connecting sleeve shaft 422 is provided with a plurality of sliding grooves II distributed in a ring array about its axial direction. The length direction of the sliding grooves II is consistent with the radial direction of the connecting sleeve shaft 422. The plurality of limiting blocks correspond one-to-one with the plurality of sliding grooves II and are mutually inserted and engaged.

[0021] It should be noted that during the position adjustment process, the limiting plate 20 slides horizontally within the traveling groove 102. The slider 22 passes through the limiting channel on the limiting plate 20 and the sliding channel on the rotating plate 21 in the vertical direction, which ensures the stability of the slider 22's movement and thus ensures the firmness of the magnetic core clamping. The rotating plate 10 continues to rotate, bringing the partially coated magnetic core to the next station and bringing the magnetic core in the next storage groove 101 to the clamping station. The above clamping and position adjustment process is repeated to realize the continuous coating processing of the magnetic core. During the tape application process, the electric push rod 46 drives the limit clamp 47, which in turn drives the fixed plate 43 to move vertically. At the same time, the fixed spline sleeve 42 and the limit post 44 also move vertically. The inner wall of the recess on the limit clamp 47 is fitted with balls, and the fixed plate 43 rolls against the balls to reduce friction. The limiting groove 45 on gear 33 is arc-shaped, and the depth of the inner wall of the limiting groove 45 away from the fixed plate 43 gradually decreases and smoothly transitions along the working rotation direction. This makes it easier for the limiting post 44 to be inserted into the limiting groove 45 in the rotating state. A horizontal reset spring is fixed on the side wall of the limiting block on the connecting shaft 421 near the inner wall of the slide groove 1, which facilitates the reset of the limiting block. The rounded corners at the end of the limiting block facilitate the automatic retraction when the connecting shaft 421 is inserted into the connecting sleeve shaft 422. When the limiting block is aligned with the slide groove 2, the limiting block will be inserted into the slide groove 2 under the action of the reset spring. At this time, a part of the limiting block is still located in the slide groove 1, thus maintaining stability. When the limiting post 44 is inserted into the limiting groove 45, the connecting shaft 421 and the connecting sleeve shaft 422 are also connected to the slide groove 2 through the limiting block. At this time, the stepper motor 40 can simultaneously drive the gear 33 and the fixed shaft 34 to rotate. Since the gear 33 and the gear 22 are fixedly connected, the gear 22 is fixedly connected to the rotating disk 21 through the fixed sleeve shaft 35, and the fixed shaft 34 is fixedly connected to the limiting disk 20, the limiting disk 20 and the rotating disk 21 are driven to rotate synchronously. As a result, the multiple sliders 22 will no longer make centrifugal or centripetal movements, ensuring the clamping stability during the rotation and coating process.

[0022] Working principle: The feeding mechanism 12 vertically conveys the magnetic core into the storage trough 101. The drive motor drives the turntable 10 to rotate. Gear 1 31 meshes with the damaged internal gear ring 111, driving gear 2 32 to rotate, which in turn drives the turntable 21 to rotate. The slider 22 makes synchronous centripetal or centrifugal motion under the restriction of the sliding channel and the limiting channel. The piston mechanism 1 23 contacts the magnetic core and is compressed. Air is pressed into the piston mechanism 2 26 through the telescopic tube 221 and the fixed ring 25, pushing its telescopic end to extend. In the opposite direction, it pushes the clamping mechanism to change position to adapt to magnetic cores of different sizes. During the coating process, the electric push rod 46 drives the limit clamp 47 to move the fixed plate 43, the limit post 44 is inserted into the limit groove 45, the connecting shaft 421 is connected to the connecting sleeve shaft 422, and the stepper motor 40 drives the limit plate 20 and the rotating plate 21 to rotate synchronously, so that the slider 22 no longer makes centrifugal or centripetal movements, ensuring stable clamping during the coating process.

Claims

1. A magnetic core assembly tape testing machine, comprising a turntable (10) and a fixed cylinder (11) coaxially rotating at the bottom, wherein the turntable (10) has four annular arrayed storage slots (101) at the top and corresponding walking slots (102) at the bottom, and the two are connected, characterized in that: A clamping mechanism slides horizontally within the travel groove (102), and an adjustment mechanism is provided inside the clamping mechanism, which includes: A rotating disk (21) has multiple sliders (22) arranged in a ring array about its axis sliding on its top. A piston mechanism (23) is provided on the side wall of the slider (22) near the axis of the rotating disk (21). A limit plate (24) is fixed to the telescopic end of the piston mechanism (23). The bottom of the slider (22) passes through the rotating disk (21) and is connected to a telescopic tube (221). Multiple telescopic tubes (221) are connected to the same fixed ring (25). A horizontal air storage cylinder (261) is connected to the bottom of the fixed ring (25) near the axis of the turntable (10). A horizontal piston mechanism (26) is fixed to one end of the air storage cylinder (261) near the axis of the turntable (10). A vertical support column (112) is fixed to the telescopic end of the piston mechanism (26) away from the air storage cylinder (261). The support column (112) rotates coaxially on the inner wall of the bottom of the fixed cylinder (11). The bottom of the rotating disk (21) is rotatably connected to a bearing bracket (30). The bearing bracket (30) slides horizontally on the bottom of the rotating disk (10). The bottom of the bearing bracket (30) is provided with a meshing gear one (31) and a gear two (32). The inner arc wall of the fixed cylinder (11) is provided with a broken internal gear ring (111). The gear one (31) and the broken internal gear ring (111) mesh and match.

2. The magnetic core assembly tape-wrapping testing machine as described in claim 1, characterized in that: The top of the rotating disk (21) is coaxially rotatably provided with a limiting disk (20). The limiting disk (20) also slides horizontally in the walking groove (102). The top of the limiting disk (20) is provided with multiple vertically penetrating limiting channels arranged in a ring array about its axis. The top of the rotating disk (21) is provided with multiple vertically penetrating sliding channels arranged in a ring array about its axis. The multiple limiting channels and multiple sliding channels correspond one-to-one with multiple sliders (22). The horizontal cross section of the sliding channel is arc-shaped. One end of the sliding channel is set towards the axis of the rotating disk (21), and the other end is bent towards the outer edge of the rotating disk (21) and tangential to it. The sliders (22) are set through the limiting channels and sliding channels in the vertical direction. The telescopic tube (221) is set through the sliding channel.

3. The magnetic core assembly tape-wrapping testing machine as described in claim 1, characterized in that: The working radius of gear one (31) is smaller than that of gear two (32). Gear two (32) is axially rotated through a fixed shaft (34). The top of the fixed shaft (34) rotates through the bearing bracket (30) and the rotating disk (21) in sequence and is coaxially fixed on the inner wall of the bottom of the limiting disk (20). A fixed sleeve shaft (35) is rotatably sleeved on the outside of the fixed shaft (34). The two ends of the fixed sleeve shaft (35) are coaxially fixed to the bottom of the rotating disk (21) and the top of gear two (32) respectively.

4. The magnetic core assembly tape-wrapping testing machine as described in claim 1, characterized in that: The fixed ring (25) is a hollow structure with an annular rotating groove at its bottom. A sealing ring is rotatably installed at the bottom opening of the rotating groove. A connecting pipe is fixed at the bottom of the sealing ring corresponding to the position of the gas storage cylinder (261). The connecting pipe connects the gas storage cylinder (261) and the fixed ring (25). The telescopic pipe (221) connects the piston mechanism one (23) and the fixed ring (25). The radius of the inner arc wall section of the piston mechanism one (23) is greater than the radius of the inner arc wall section of the piston mechanism two (26).

5. The magnetic core assembly tape-wrapping testing machine as described in claim 1, characterized in that: Gear 3 (33) is coaxially fixed at the bottom of gear 2 (32). The working radius of gear 3 (33) is smaller than that of gear 2 (32). A broken external toothed ring (113) is fixed on the inner wall of the bottom of the fixed cylinder (11). The broken external toothed ring (113) meshes with gear 3 (33) and the support column (112) does not contact the clamping mechanism or the adjustment mechanism. A driving mechanism is provided directly below one of the walking grooves (102). The driving mechanism includes a stepper motor (40) fixed on the inner wall of the bottom of the fixed cylinder (11). The output shaft of the stepper motor (40) is coaxial with the rotating disk (21) in the clamping mechanism in the walking groove (102).

6. The magnetic core assembly tape-wrapping testing machine as described in claim 5, characterized in that: A spline shaft (41) is coaxially fixed on the output shaft of the stepper motor (40). A spline sleeve (42) is coaxially slidably sleeved on the outside of the spline shaft (41). A horizontal fixed disk (43) is fixed at the bottom of the outer arc wall of the spline sleeve (42). A number of vertically arranged limiting posts (44) are arranged in a ring array about its axial direction on the top outer edge of the fixed disk (43). The fixed disk (43) is located below the gear three (33), and a number of limiting grooves (45) are opened on the side wall of the gear three (33) close to the fixed disk (43) about its axial direction.

7. The magnetic core assembly tape-wrapping testing machine as described in claim 6, characterized in that: The stepper motor (40) is provided with an electric push rod (46) on one side and the electric push rod (46) is fixed on the inner wall of the bottom of the fixed cylinder (11). The extension end of the electric push rod (46) is fixed with a limit clamp (47). The limit clamp (47) and the fixed plate (43) are located in the same horizontal plane. The vertical section of the limit clamp (47) along the radial direction of the fixed plate (43) is "door" shaped and the notch is set facing the fixed plate (43). The outer edge of the fixed plate (43) rotates in the notch and the limit post (44) does not contact the limit clamp (47).

8. The magnetic core assembly tape-wrapping testing machine as described in claim 6, characterized in that: The spline sleeve (42) is coaxially fixed with a connecting shaft (421) at the top. The top of the outer arc wall of the connecting shaft (421) is provided with a plurality of sliding grooves I arranged in a ring array about its axial direction. The length direction of the sliding grooves I is consistent with the radial direction of the connecting shaft (421). A limiting block is movably provided in the sliding grooves I. The end of the limiting block away from the sliding grooves I is chamfered on both sides along the vertical direction. A connecting sleeve shaft (422) is coaxially sleeved on the outside of the connecting shaft (421). A plurality of sliding grooves II are provided on the inner arc wall of the connecting sleeve shaft (422) arranged in a ring array about its axial direction. The length direction of the sliding grooves II is consistent with the radial direction of the connecting sleeve shaft (422). The plurality of limiting blocks correspond one-to-one with the plurality of sliding grooves II and are mutually inserted and engaged.

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