A smaller chip inductor automatic winding machine

Abstract

The present invention relates to the technical field of inductor winding, and in particular to an automatic winding machine for a chip inductor with a smaller size, comprising a rotating component and an unwinding component, the rotating component comprising a main drive shaft, a skeleton clamping mechanism and an auxiliary rotating mechanism, the skeleton clamping member comprising a connecting plate, an elastic pressure member and two elastic expansion plates, the elastic pressure member comprising two groups of pressure plates, the auxiliary rotating mechanism comprising a translation mechanism and a rotating frame, the unwinding component comprising a linear sliding mechanism, a first unwinding wheel and a second unwinding wheel, when fixing, the two elastic expansion plates are pressed inwardly to make the two elastic expansion plates gather inwardly, and then the coil skeleton is sleeved outside the two elastic expansion plates, and finally the coil skeleton is fixed by the elastic force of the elastic expansion plates expanding outward, and when disassembling later, the entire coil skeleton can be driven to detach from the two elastic expansion plates by sliding the rotating frame, thereby greatly shortening the fixing time of the coil skeleton and further improving the winding efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of inductor winding, and in particular to an automatic winding machine for a chip inductor with a smaller size. Background Art

[0002] SMD inductor, or surface mount inductor, is an inductor made using printed circuit manufacturing technology. It can be directly attached to the surface of a circuit board and connected to other components through pins. Among them, common-mode inductors, also known as common-mode chokes, are important electronic components that are mainly used to suppress common-mode interference. Common-mode inductors use ferrite as the core and consist of two coils of the same size and number of turns symmetrically wound on the same ferrite toroidal core to form a four-terminal device. When common-mode current passes through, the magnetic fields generated by the two coils will cancel each other out due to the opposite winding directions of the two coils, thereby exhibiting a larger inductance and suppressing the common-mode signal. As for differential-mode signals, since the current directions in the two coils are the same, the magnetic fields they generate will enhance each other, but the leakage inductance between the coils is very small, so the loss of differential-mode signals is very small.

[0003] The existing Chinese patent with publication number CN117316621A discloses a winding device for inductor processing, but the patent and the prior art also have the following defects:

[0004] First, the above patent is only applicable to the winding of ordinary inductors, not to the winding of common-mode inductors;

[0005] Second, the existing common-mode inductors are connected to the circuit in a plug-in manner, which has a high production cost and causes the entire common-mode inductor to be relatively large in size, which does not meet the requirements of miniaturization and chip-type of surface mount technology;

[0006] Third, when winding the common-mode inductor, the inductor body needs to be fixed. Due to the special shape of the common-mode inductor, the traditional fixing method is mostly to lock and fix it by clamping blocks, which will be more cumbersome during disassembly and assembly, thereby reducing the winding efficiency;

[0007] Fourthly, the common-mode inductor needs to be wound with two sets of coils. Before winding the coil, one end of the coil needs to be fixed to the inductor body. Traditionally, direct welding is mostly used, which wastes a certain amount of time. Since the coil is thin, spot welding is used. When winding, the inductor will rotate. When rotating, the coil will pull the welding part with the inductor, eventually causing the welding part between the coil and the inductor to be pulled apart.

[0008] Therefore, it is necessary to provide a smaller size chip inductor automatic winding machine to solve the above problems. Summary of the invention

[0009] Based on this, it is necessary to provide a smaller size automatic winding machine for chip inductors in response to the existing technical problems.

[0010] In order to solve the problems of the prior art, the technical solution adopted by the present invention is: a smaller-sized automatic winding machine for chip inductors, including a rotating component and an unwinding component, the rotating component including a main drive shaft, a skeleton clamping mechanism and an auxiliary rotating mechanism, the skeleton clamping mechanism is arranged on the main drive shaft, the skeleton clamping member includes a connecting plate, an elastic pressure member and two elastic expansion plates, the connecting plate is vertically connected to the main drive shaft, the two elastic expansion plates are symmetrically formed on one side of the connecting plate, each elastic expansion plate is vertical, and each elastic expansion plate is formed with a vertical blocking bar at one end away from the connecting plate, The elastic pressure piece includes two groups of pressure plates, which correspond to the two elastic expansion plates. Each pressure plate is vertically arranged beside the elastic expansion plate, and each pressure plate is elastically connected to the connecting plate. A No. 1 wire end clamp is provided on the connecting plate. The auxiliary rotating mechanism includes a translation mechanism and a rotating frame. The rotating frame is arranged on the translation mechanism. A pin sleeve and a No. 2 wire end clamp are respectively provided on both sides of the rotating frame. The unwinding assembly includes a linear sliding mechanism, a No. 1 unwinding wheel and a No. 2 unwinding wheel. The linear sliding mechanism includes two groups of driving blocks. The No. 1 unwinding wheel and the No. 2 unwinding wheel are respectively arranged on the two groups of driving blocks.

[0011] Furthermore, one side of each group of pressure plates is formed with a number of No. 1 limit shafts equidistantly distributed in the vertical direction, each No. 1 limit shaft passes through the connecting plate horizontally, each No. 1 limit shaft is sleeved with a No. 1 spring, the two ends of the No. 1 spring are respectively in conflict with the pressure plate and the connecting plate, and one end of each No. 1 limit shaft passing through the connecting plate is threaded, and a No. 1 limit nut is screwed onto the threaded end of each No. 1 limit shaft.

[0012] Furthermore, the No. 1 line end clamping part includes a rectangular frame, a bottom block, a clamping block and several No. 2 springs. The rectangular frame is connected to the connecting plate. The bottom of the rectangular frame is an open structure. The bottom block is horizontally fixed on the opening at the bottom of the rectangular frame. The clamping block is horizontally arranged in the rectangular frame. The bottom of the clamping block is formed with several No. 2 limit axes equidistantly distributed along the horizontal direction. Each No. 2 limit axis passes vertically downward through the bottom block. Each No. 2 spring is sleeved on the corresponding No. 2 limit axis. The two ends of each No. 2 spring are distributed in conflict with the clamping block and the bottom block. A horizontal pull plate is provided under the bottom block, and the lower end of each No. 2 limit axis is fixedly connected to the pull plate.

[0013] Furthermore, the translation mechanism includes a No. 1 bar base, a slide plate and a locking piece. The No. 1 bar base is horizontally arranged, and the slide plate slides horizontally on the top of the No. 1 bar base. The locking piece is arranged at the bottom of the slide plate. The locking piece includes a fixing bolt and a locking cap. A horizontal bar through groove is opened on the No. 1 bar base. The fixing bolt is vertically fixed to the bottom of the slide plate, and the fixing bolt passes downward through the bar through groove. The locking cap is screwed on the lower end of the fixing bolt. An axle seat is fixed on the top of the slide plate, and the rotating frame is connected to the axle seat.

[0014] Furthermore, the rotating frame includes a rectangular shell and a driven shaft, which is horizontally fixed to one end of the rectangular shell and passes through the shaft seat. A No. 1 connecting rod and a No. 2 connecting rod are fixed on both sides of the rectangular shell, and the structure of the No. 2 line end clamping piece is consistent with the structure of the No. 1 line end clamping piece, wherein the rectangular frame in the No. 2 line end clamping piece is fixed to the No. 1 connecting rod, and the pin sleeve is connected to the No. 2 connecting rod.

[0015] Furthermore, the rectangular shell has an end facing away from the driven rotating shaft and an opening, an outer wall of one side of the rectangular shell is provided with a through opening, and a resistance frame is provided in the rectangular shell, the resistance frame includes a vertical plate and two symmetrical resistance plates, each resistance plate is perpendicular to the vertical plate, and one end of each resistance plate is fixedly connected to the side of the vertical plate facing the opening of the rectangular shell, and a horizontal strip block is fixedly provided on the side of the vertical plate facing away from the opening of the rectangular shell, a strip slot is provided in the strip block, the strip slot is parallel to the strip block, and an insertion strip is inserted in the strip slot, and strip avoidance grooves are provided on both sides of the rectangular shell, and the two ends of the insertion strip respectively pass through the two strip avoidance grooves, and a shift block is fixedly provided on the end of each insertion strip, and a group of No. 1 convex strips and a group of No. 2 convex strips are formed on the inner walls of both sides of the rectangular shell, the vertical plate is located between the No. 1 convex strip and the No. 2 convex strip, and a No. 1 inclined surface is formed on the end of each resistance plate facing the opening of the rectangular shell, and a No. 2 inclined surface is formed on each stop strip to cooperate with the inclined wedge of the No. 1 inclined surface.

[0016] Furthermore, a support plate extending vertically downward is fixed on the connecting plate, and two No. 3 limit shafts symmetrically about the rectangular frame are formed on the support plate, and limit ears are formed on both sides of the rectangular frame. Each No. 3 limit shaft passes horizontally through the corresponding limit ear, and a No. 3 spring is sleeved on each No. 3 limit shaft, and the two ends of the No. 3 spring are respectively in conflict with the limit ear and the support plate, and a No. 2 limit nut is screwed on one end of the No. 3 limit shaft passing through the limit ear, and No. 1 oblique wedge blocks are formed on both sides of the pull plate, and two No. 2 oblique wedge blocks are formed on the support plate, and each No. 1 oblique wedge block cooperates with the corresponding No. 2 oblique wedge block, and an avoidance opening for avoiding the rectangular frame is opened in the middle of the support plate, and a push block is fixed on the support plate.

[0017] Furthermore, the linear sliding mechanism also includes a No. 2 bar base, a threaded rod and a support. The No. 2 bar base is horizontally fixed on the support, the threaded rod is horizontally rotated on the top of the No. 2 bar base, and both sets of driving blocks slide on the top of the No. 2 bar base. The bottom of each set of driving blocks is fixed with a threaded sleeve mounted on the threaded rod.

[0018] Furthermore, two symmetrical vertical poles are fixed on the top of each group of driving blocks, and the No. 1 unwinding wheel and the No. 2 unwinding wheel are arranged between the corresponding two vertical poles. Both ends of the No. 1 unwinding wheel and the No. 2 unwinding wheel are formed with rotating pins, each rotating pin is rotatably connected to the upper end of the corresponding vertical pole, and each rotating pin is covered with a rubber sleeve.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] First, the inductor of the device is provided with two pairs of pins. During installation, the inductor is directly mounted on the circuit board through the two pairs of pins. After the inductor is fixedly connected to the circuit board, the inductor and the circuit board are fixed together in the electronic device through the clamping part on the inductor. Compared with the traditional inductor, the inductor of the device is smaller in size and easy to disassemble and assemble;

[0021] Secondly, the device fixes the coil skeleton through a skeleton clamping mechanism. When fixing, the two elastic expansion plates are pressed inward to make the two elastic expansion plates gather inward, and then the coil skeleton is sleeved outside the two elastic expansion plates. Finally, the coil skeleton is fixed by the elastic force of the elastic expansion plates. When disassembling later, the entire coil skeleton can be driven to detach from the two elastic expansion plates by sliding the rotating frame, which will greatly shorten the fixing time of the coil skeleton and thus improve the winding efficiency.

[0022] Thirdly, the two groups of coils wound on the coil frame are fixedly connected to the coil frame through the No. 1 wire end clamp and the No. 2 wire end clamp respectively. When the coil frame rotates, the ends of the coils will not loosen, so the ends of the coils will not separate from the coil frame, ultimately ensuring that the coils can be smoothly wound on the coil frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the three-dimensional structure of the inductor of the present invention;

[0024] Figure 2 The three-dimensional structure diagram of the automatic winding machine of the present invention is shown in FIG. Figure 1 ;

[0025] Figure 3 yes Figure 2 A1 is a partial enlarged schematic diagram;

[0026] Figure 4 yes Figure 2A2 is a partial enlarged schematic diagram;

[0027] Figure 5 yes Figure 2 A3 is a partial enlarged schematic diagram;

[0028] Figure 6 The three-dimensional structure diagram of the automatic winding machine of the present invention is shown in FIG. Figure 2 ;

[0029] Figure 7 yes Figure 6 A4 is a partial enlarged schematic diagram;

[0030] Figure 8 It is a top view of the automatic winding machine of the present invention;

[0031] Fig. 9 yes Figure 8 Section view along line AA;

[0032] Fig.10 It is a three-dimensional structural schematic diagram of the skeleton clamping mechanism of the present invention;

[0033] Fig.11 is a top view of the skeleton clamping mechanism of the present invention;

[0034] Fig.12 yes Fig.11 Sectional view along line BB;

[0035] Fig.13 It is a three-dimensional structural schematic diagram of the auxiliary rotation mechanism of the present invention;

[0036] Fig.14 is a side view of the rotating frame of the present invention;

[0037] Fig.15 yes Fig.14 Cross-sectional view along line CC.

[0038] The numbers in the figure are: 1, coil skeleton; 2, wire blocking plate; 3, mounting seat; 4, pin; 5, block; 6, clamping part; 7, main drive shaft; 8, connecting plate; 9, elastic expansion plate; 10, block; 11, pressure plate; 12, No. 1 wire end clamp; 13, rotating frame; 14, pin plug sleeve; 15, No. 2 wire end clamp; 16, No. 1 unwinding wheel; 17, No. 2 unwinding wheel; 18, driving block; 19, No. 1 limiting shaft; 20, No. 1 spring; 21, No. 1 limiting nut; 22, rectangular frame; 23, bottom block; 24, clamping block; 25, No. 2 spring; 26, No. 2 limiting shaft; 27, pull plate; 28, No. 1 strip base; 29, slide plate; 30, fixing bolt; 31, locking cap; 32, strip through groove; 33, shaft seat; 34, rectangular shell ; 35, driven shaft; 36, No. 1 connecting rod; 37, No. 2 connecting rod; 38, through port; 39, abutment frame; 40, vertical plate; 41, abutment plate; 42, strip block; 43, strip slot; 44, insert strip; 45, strip avoidance groove; 46, shift block; 47, No. 1 convex strip; 48, No. 2 convex strip; 49, No. 1 inclined surface; 50, No. 2 inclined surface; 51, support plate; 52 , No. 3 limit shaft; 53, limit ear; 54, No. 3 spring; 55, No. 2 limit nut; 56, No. 1 inclined wedge block; 57, No. 2 inclined wedge block; 58, avoidance; 59, push block; 60, No. 2 strip base; 61, threaded rod; 62, support; 63, threaded sleeve; 64, vertical pole; 65, turn pin; 66, rubber sleeve; 67, No. 1 wire; 68, No. 2 wire. DETAILED DESCRIPTION

[0039] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0040] refer to Figures 1 to 15 The automatic winding machine for chip inductors of a smaller size shown in the figure comprises a rotating assembly and an unwinding assembly, wherein the rotating assembly comprises a main drive shaft 7, a skeleton clamping mechanism and an auxiliary rotating mechanism, wherein the skeleton clamping mechanism is arranged on the main drive shaft 7, and the skeleton clamping member comprises a connecting plate 8, an elastic pressing member and two elastic expansion plates 9, wherein the connecting plate 8 is vertically connected to the main drive shaft 7, and the two elastic expansion plates 9 are symmetrically formed on one side of the connecting plate 8, wherein each elastic expansion plate 9 is vertical, and each elastic expansion plate 9 is formed with a vertical baffle 10 (combined with the connecting plate 8) at one end away from the connecting plate 8. Figure 2 and Fig.10 ), the elastic pressing member includes two sets of pressing plates 11 (such as Figure 5As shown, two groups of pressing plates 11 correspond to two elastic expansion plates 9, each pressing plate 11 is vertically arranged beside the elastic expansion plate 9, and each pressing plate 11 is elastically connected to the connecting plate 8, and the connecting plate 8 is provided with a No. 1 line end clamping piece 12, and the auxiliary rotating mechanism includes a translation mechanism and a rotating frame 13, and the rotating frame 13 is arranged on the translation mechanism. The two sides of the rotating frame 13 are respectively provided with a pin sleeve 14 and a No. 2 line end clamping piece 15 (combined with Figure 6 and Fig. 9 ), the unwinding assembly includes a linear sliding mechanism, a No. 1 unwinding wheel 16 and a No. 2 unwinding wheel 17, the linear sliding mechanism includes two sets of driving blocks 18, and the No. 1 unwinding wheel 16 and the No. 2 unwinding wheel 17 are respectively arranged on the two sets of driving blocks 18.

[0041] The chip inductor of this device is a common-mode inductor, which is mainly used to suppress common-mode interference, such as Figure 1 As shown, the specific structure of the chip inductor includes a coil skeleton 1, which is columnar and has a hollow structure inside. Vertical wire blocking plates 2 are formed at both ends of the coil skeleton 1, and a mounting seat 3 is formed at the lower end of each wire blocking plate 2. Two symmetrical pins 4 are formed at the bottom of the mounting seat 3. A block 5 located between the two wire blocking plates 2 is formed at the center of the coil skeleton 1, and the block 5 is vertical. The side of each wire blocking plate 2 away from the block 5 is recessed inward to form a clamping portion 6.

[0042] The block 5 evenly divides the coil skeleton 1 into two winding areas, and the two winding areas are respectively wound with a No. 1 wire 67 and a No. 2 wire 68. When processing the mounting seat 3, each mounting seat 3 is provided with a lead groove (not shown in the figure) for the introduction of the No. 1 wire 67 and the No. 2 wire 68. In actual use, each clamping portion 6 is sleeved with an insulating rubber sleeve (not shown in the figure), and the insulating rubber sleeve is provided with a plurality of heat dissipation holes (not shown in the figure). Each pin 4 is L-shaped. When the No. 1 wire 67 and the No. 2 wire 68 are wound on the coil skeleton 1, the two ends of the No. 1 wire 67 and the No. 2 wire 68 are respectively fixedly connected to the corresponding two pins 4. When installing the device, the pin 4 on each mounting seat 3 is connected to the circuit board in the form of a patch, and then the inductor and the circuit board are fixed in the electronic device through the clamping portion 6 of the device;

[0043] Before winding the coil on the coil skeleton 1, the coil skeleton 1 is first connected to the main drive shaft 7 through the skeleton clamping mechanism. During this process, the two elastic expansion plates 9 are first pressed to make the two elastic expansion plates 9 move inward, and then the coil skeleton 1 is horizontally sleeved on the outside of the two elastic expansion plates 9. When the baffle 10 on one end of each elastic expansion plate 9 is exposed from one end of the coil skeleton 1, the two elastic expansion plates 9 are released. At this time, the two elastic expansion plates 9 will tighten the coil skeleton 1 from the inside to the outside, and when the coil skeleton 1 is sleeved on the two elastic expansion plates 9, one end of the coil skeleton 1 will synchronously resist the two sets of pressure plates 11. When the two elastic expansion plates 9 are released, the two sets of pressure plates 11 will synchronously press the coil. One end of the frame 1 makes the other end of the coil frame 1 contact with the two stop bars 10, so that the entire coil frame 1 will be fixed on the two elastic expansion plates 9, and then the rotating frame 13 is pushed toward the coil frame 1 through the translation mechanism. In the process of the rotating frame 13 approaching the coil frame 1, the pin plug sleeve 14 provided on the rotating frame 13 will be sleeved on one of the pins 4 at the end of the coil frame 1, and the rotating frame 13 is connected to the coil frame 1 through the pin plug sleeve 14. When the coil frame 1 rotates, the rotating frame 13 will rotate with the coil frame 1. In actual use, an external motor (not shown in the figure) for driving its rotation is provided on the side of the main drive shaft 7;

[0044] A sufficient amount of No. 1 wire 67 is pre-wound on the No. 1 unwinding wheel 16, and a sufficient amount of No. 2 wire 68 is pre-wound on the No. 2 unwinding wheel 17. Before winding the coil on the coil frame 1, it is necessary to first connect one end of the No. 1 wire 67 and the No. 2 wire 68 to the coil frame 1. The specific process is as follows: one end of the No. 1 wire 67 on the No. 1 unwinding wheel 16 is pressed against one of the wire blocking plates 2, and is passed around the coil frame 1 from above, and then the end of the No. 1 wire 67 is downwardly connected to the No. 1 wire end clamping piece 12, one end of the No. 2 wire 68 on the No. 2 unwinding wheel 17 is pressed against another wire blocking plate 2, and is passed around the coil frame 1 from above, and then the end of the No. 2 wire 68 is downwardly connected to the No. 2 wire end clamping piece 15;

[0045] When the coil is wound around the coil frame 1, the main drive shaft 7 rotates. At the same time, the two driving blocks 18 on the linear sliding mechanism will respectively drive the No. 1 unwinding wheel 16 and the No. 2 unwinding wheel 17 to approach each other. During this process, the No. 1 wire 67 on the No. 1 unwinding wheel 16 will be wound around the coil frame 1 circle by circle, and the No. 2 wire 68 on the No. 2 unwinding wheel 17 will be wound around the coil frame 1 circle by circle. During actual winding, a cutter (not shown in the figure) is provided on the side of the unwinding component. When the No. 1 wire 67 and the No. 2 wire 68 wound on the coil frame 1 approach the stopper 5, the cutter will synchronously cut the No. 1 wire 67 and the No. 2 wire Wire 68 is cut off, and then one end of the No. 2 wire 68 is separated from the No. 2 wire end clamp 15, and then the rotating frame 13 is driven to move in the opposite direction through the translation mechanism, so that the rotating frame 13 gradually moves away from the coil frame 1. When the rotating frame 13 is away from the coil frame 1, one end of the No. 1 wire 67 is separated from the No. 1 wire end clamp 12, and then the coil frame 1 is removed from the two elastic expansion plates 9. When the coil frame 1 is removed, two groups of coils will be wound on the coil frame 1. Thereafter, the coil frame 1 is transported to the subsequent welding process, and the two broken ends of each group of coils are respectively connected to the corresponding two pins 4 through the welding process.

[0046] In order to specifically demonstrate how the pressure plate 11 is elastically connected to the connecting plate 8, the following features are provided:

[0047] One side of each group of pressure plates 11 is formed with a number of No. 1 limit shafts 19 equidistantly distributed in the vertical direction. Each No. 1 limit shaft 19 passes through the connecting plate 8 horizontally. A No. 1 spring 20 is sleeved on each No. 1 limit shaft 19. The two ends of the No. 1 spring 20 respectively contact the pressure plate 11 and the connecting plate 8. One end of each No. 1 limit shaft 19 passing through the connecting plate 8 is threaded, and a No. 1 limit nut 21 is screwed on the threaded end of each No. 1 limit shaft 19.

[0048] In the initial state, the No. 1 spring 20 releases its elastic force to drive the pressure plate 11 to press against the stopper 5. During this process, the No. 1 limit nut 21 is used to prevent the No. 1 limit shaft 19 from escaping from the connecting plate 8. When the coil skeleton 1 is mounted on the two elastic expansion plates 9, one end of the coil skeleton 1 will contact the two pressure plates 11. Therefore, when the coil skeleton 1 translates, each pressure plate 11 will compress the corresponding number of No. 1 springs 20, so that the No. 1 spring 20 generates elastic force. When the baffle 10 on each elastic expansion plate 9 is exposed from the coil skeleton 1, the two elastic expansion plates 9 are released. At this time, each pressure plate 11 will press the coil skeleton 1 against the baffle 10, and the baffle 10 will prevent the coil skeleton 1 from detaching from the elastic expansion plate 9.

[0049] In order to show the specific structure of the No. 1 line end clamp 12, the following features are set:

[0050] The first line end clamping member 12 includes a rectangular frame 22, a bottom block 23, a clamping block 24 and a plurality of second springs 25. The rectangular frame 22 is connected to the connecting plate 8. The bottom of the rectangular frame 22 is an open structure (combined with Figure 7 and Fig.12 ), the bottom block 23 is horizontally fixed on the opening at the bottom of the rectangular frame 22, the clamping block 24 is horizontally arranged in the rectangular frame 22, and the bottom of the clamping block 24 is formed with a plurality of No. 2 limit shafts 26 equidistantly distributed in the horizontal direction, each No. 2 limit shaft 26 vertically passes through the bottom block 23 downward, and each No. 2 spring 25 is sleeved on the corresponding No. 2 limit shaft 26, and the two ends of each No. 2 spring 25 are distributed in conflict with the clamping block 24 and the bottom block 23. A horizontal pull plate 27 is provided below the bottom block 23, and the lower end of each No. 2 limit shaft 26 is fixedly connected to the pull plate 27.

[0051] During the process of the coil skeleton 1 being sleeved on the two elastic expansion plates 9, one of the pins 4 at one end of the coil skeleton 1 will be inserted into the rectangular frame 22. In the initial state, a number of No. 2 springs 25 generate elastic force to drive the clamping block 24 to rise. During this process, a number of No. 2 limit shafts 26 will drive the pull plate 27 to rise until the pull plate 27 is upwardly in conflict with the bottom of the bottom block 23. When fixing the end of the No. 1 wire 67, first pull the pull plate 27 downward, and drive the clamping block 24 to descend through the pull plate 27. During the descent of the clamping block 24, the clamping block 24 will synchronously compress a number of No. 2 springs 25, so that the No. 2 spring 25 generates elastic force. When the pull plate 27 is released, the clamping block 24 will clamp the end of the No. 1 wire 67 upward through the elastic force of the No. 2 spring 25.

[0052] In order to show the specific structure of the translation mechanism, the following features are set:

[0053] The translation mechanism includes a first strip base 28, a slide plate 29 and a locking member. The first strip base 28 is horizontally arranged, and the slide plate 29 slides horizontally on the top of the first strip base 28. The locking member is arranged at the bottom of the slide plate 29. The locking member includes a fixing bolt 30 and a locking cap 31 (such as Figure 6 As shown in the figure, a horizontal strip through slot 32 is provided on the No. 1 strip base 28, a fixing bolt 30 is vertically fixed to the bottom of the slide plate 29, and the fixing bolt 30 passes downward through the strip through slot 32, a locking cap 31 is screwed on the lower end of the fixing bolt 30, and an axle seat 33 is fixed on the top of the slide plate 29, and the rotating frame 13 is connected to the axle seat 33.

[0054] When the rotating frame 13 needs to be moved, the locking cap 31 is loosened, and then the slide plate 29 is pushed. When the pin sleeve 14 on the rotating frame 13 is sleeved on one of the pins 4 at one end of the coil frame 1, the locking cap 31 is tightened to fix the position of the fixing bolt 30 through the locking cap 31, thereby ensuring that the rotating frame 13 will not undergo linear displacement.

[0055] In order to show the specific structure of the rotating frame 13, the following features are set:

[0056] The rotating frame 13 includes a rectangular shell 34 and a driven shaft 35. The driven shaft 35 is horizontally fixed to one end of the rectangular shell 34. The driven shaft 35 passes through the shaft seat 33. The two sides of the rectangular shell 34 are respectively fixed with a first connecting rod 36 and a second connecting rod 37 (such as Fig.13 As shown), the structure of the No. 2 line end clamp 15 is consistent with the structure of the No. 1 line end clamp 12, wherein the rectangular frame 22 in the No. 2 line end clamp 15 is fixedly connected to the No. 1 connecting rod 36, and the pin sleeve 14 is connected to the No. 2 connecting rod 37.

[0057] The rectangular shell 34 is connected to the shaft seat 33 through the driven rotating shaft 35. When the slide plate 29 drives the rotating frame 13 to press against the coil frame 1, the No. 2 connecting rod 37 connected to the rectangular shell 34 will drive the pin sleeve 14 to gradually approach one of the pins 4 at the end of the coil frame 1. When the pin sleeve 14 is sleeved on the corresponding pin 4, the position of the fixing bolt 30 is fixed by the locking cap 31. Thereafter, one end of the No. 2 wire 68 is passed around the coil frame 1 from above, and the end of the No. 2 wire 68 is fixedly connected to the No. 2 wire end clamp 15. Thereafter, when the coil frame 1 rotates, the coil frame 1 will drive the rotating frame 13 to rotate together, so that the No. 2 wire 68 will be wound around the coil frame 1 circle by circle.

[0058] In order to facilitate the removal of the coil frame 1 from the two elastic expansion plates 9, the following features are provided:

[0059] The end of the rectangular shell 34 away from the driven shaft 35 is an open structure, and a through hole 38 is opened on the outer wall of one side of the rectangular shell 34. A resistance frame 39 is provided in the rectangular shell 34. The resistance frame 39 includes a vertical plate 40 and two symmetrical resistance plates 41. Each resistance plate 41 is perpendicular to the vertical plate 40, and one end of each resistance plate 41 is fixedly connected to the side of the vertical plate 40 facing the opening of the rectangular shell 34. A horizontal strip block 42 (such as Fig. 9 As shown in the figure, a strip slot 43 is provided in the strip block 42, and the strip slot 43 is parallel to the strip block 42. An insertion strip 44 is inserted in the strip slot 43. Strip avoidance grooves 45 are provided on both sides of the rectangular shell 34. Both ends of the insertion strip 44 pass through the two strip avoidance grooves 45 respectively. A shift block 46 is fixed on the end of each insertion strip 44. A group of No. 1 convex strips 47 and a group of No. 2 convex strips 48 are formed on the inner walls of both sides of the rectangular shell 34. The vertical plate 40 is located between the No. 1 convex strip 47 and the No. 2 convex strip 48. A No. 1 inclined surface 49 is formed on the end of each contact plate 41 facing the opening of the rectangular shell 34, and a No. 2 inclined surface 50 is formed on each baffle 10 to cooperate with the No. 1 inclined surface 49.

[0060] The abutment frame 39 slides in the rectangular shell 34 through the insertion strip 44. When the rotating frame 13 moves toward the coil frame 1, the No. 1 convex strip 47 in the rectangular shell 34 will drive the entire abutment frame 39 to move through the abutment vertical plate 40. When one end of the rectangular shell 34 abuts against the coil frame 1, the No. 1 inclined surface 49 on each abutment plate 41 is close to the No. 2 inclined surface 50 on the corresponding baffle bar 10. Thereafter, when the coil frame 1 needs to be removed from the two elastic expansion plates 9, the locking cap 31 is loosened, and then the rectangular shell 34 is driven to continuously press against the coil frame 1. During this process, the rectangular shell 34 will drive the abutment frame 39 to press against the coil frame 1 through the No. 1 convex strip 47. When the abutment After the No. 1 inclined surface 49 on the plate 41 contacts the No. 2 inclined surface 50 on the baffle 10, the two elastic expansion plates 9 will be driven inward by the two contact plates 41 through the cooperation of the oblique wedges between the No. 1 inclined surface 49 and the No. 2 inclined surface 50, so that the baffle 10 is separated from the end of the coil skeleton 1, and then the rectangular shell 34 is slid in the opposite direction. During this process, the contact frame 39 is fixed by pressing the shift block 46. When the two contact plates 41 penetrate into the inner cavity of the coil skeleton 1, the shift block 46 is released. After that, the rectangular shell 34 sliding in the opposite direction will drive the contact frame 39 to translate in the opposite direction through the two sets of No. 2 convex strips 48 until the entire coil skeleton 1 is removed from the two elastic expansion plates 9.

[0061] In order to facilitate the separation of the end of the No. 1 wire 67 from the No. 1 wire end clamp 12, the following features are provided:

[0062] A vertical support plate 51 is fixedly provided on the connecting plate 8, and two third limit axes 52 (combined with the third limit axis 52) are formed on the support plate 51 and are symmetrical with respect to the rectangular frame 22. Figure 7 and Fig.12 ), both sides of the rectangular frame 22 are formed with limiting ears 53, each No. 3 limiting shaft 52 passes through the corresponding limiting ear 53 horizontally, each No. 3 limiting shaft 52 is sleeved with a No. 3 spring 54, the two ends of the No. 3 spring 54 respectively conflict with the limiting ear 53 and the support plate 51, and a No. 2 limiting nut 55 is screwed on one end of the No. 3 limiting shaft 52 passing through the limiting ear 53, and a No. 1 oblique wedge block 56 is formed on both sides of the pull plate 27, and two No. 2 oblique wedge blocks 57 are formed on the support plate 51, each No. 1 oblique wedge block 56 is obliquely wedge-matched with the corresponding No. 2 oblique wedge block 57, and an avoidance opening 58 for avoiding the rectangular frame 22 is opened in the middle of the support plate 51, and a push block 59 is fixed on the support plate 51.

[0063] When the rectangular shell 34 is pushed to press the coil frame 1 to continue to translate, since one of the pins 4 on one end of the coil frame 1 is connected to the No. 1 wire end clamp 12, the rectangular frame 22 in the No. 1 wire end clamp 12 will translate along with the coil frame 1. During this process, the rectangular frame 22 will compress the two No. 3 springs 54 through the two limit ears 53, so that the No. 3 springs 54 generate elastic force. At the same time, the two No. 1 inclined wedges 56 on the pull plate 27 will respectively conflict with the two No. 2 inclined wedges 57 on the support plate 51. At this time, through the No. 1 inclined wedge 56 and the No. 2 inclined wedge 57 With the cooperation of the pull plate 27, the pull plate 27 will be driven down, so that the clamping block 24 will go down and release the end of the clamped No. 1 wire 67. Thereafter, as the rectangular frame 22 translates, the push block 59 provided on the support plate 51 will gradually extend into the rectangular frame 22, and finally the end of the No. 1 wire 67 will be pushed out of the rectangular frame 22 by the push block 59. Thereafter, the coil skeleton 1 will translate in the opposite direction and slide out from the two elastic expansion plates 9. In summary, each No. 3 spring 54 will release its elastic force to drive the rectangular frame 22 to reset until the limiting ears 53 on both sides of the rectangular frame 22 respectively conflict with the two No. 2 limiting nuts 55.

[0064] In order to show the specific structure of the linear sliding mechanism, the following features are set:

[0065] The linear sliding mechanism also includes a second bar base 60, a threaded rod 61 and a support 62. The second bar base 60 is horizontally fixed on the support 62, and the threaded rod 61 is horizontally rotated on the top of the second bar base 60. Both groups of driving blocks 18 slide on the top of the second bar base 60, and the bottom of each group of driving blocks 18 is fixed with a threaded sleeve 63 sleeved on the threaded rod 61.

[0066] When processing the threaded rod 61, two threaded parts with opposite rotation directions are opened on the threaded rod 61, and the threaded sleeves 63 on the two sets of driving blocks 18 are respectively threadedly matched with the two threaded parts on the threaded rod 61, so that when the threaded rod 61 rotates forward, the two sets of driving blocks 18 will respectively drive the No. 1 unwinding wheel 16 and the No. 2 unwinding wheel 17 to move toward each other, and when the threaded rod 61 rotates reversely, the two sets of driving blocks 18 will respectively drive the No. 2 unwinding wheel 17 and the No. 2 unwinding wheel 17 to move backwards. In actual use, a reduction motor (not shown in the figure) is provided on the side of the threaded rod 61 for driving its rotation.

[0067] In order to show how to install the first unwinding wheel 16 and the second unwinding wheel 17, the following features are set:

[0068] Two symmetrical vertical rods 64 are fixedly provided on the top of each group of driving blocks 18, and the No. 1 unwinding wheel 16 and the No. 2 unwinding wheel 17 are arranged between the corresponding two vertical rods 64. Both ends of the No. 1 unwinding wheel 16 and the No. 2 unwinding wheel 17 are formed with rotating pins 65, each rotating pin 65 is rotatably connected to the upper end of the corresponding vertical rod 64, and each rotating pin 65 is covered with a rubber sleeve 66.

[0069] When the coil frame 1 rotates, the No. 1 wire 67 and the No. 2 wire 68 will be wound around the coil frame 1 circle by circle. During this process, the No. 1 unwinding wheel 16 and the No. 2 unwinding wheel 17 are rotated between the two vertical poles 64 through the rotating pin 65, and the No. 1 unwinding wheel 16 and the No. 2 unwinding wheel 17 are made to have a certain resistance to rotation through the rubber sleeve 66, so as to ensure that the No. 1 wire 67 and the No. 2 wire 68 are wound around the coil frame 1 in a straight state.

[0070] Working principle:

[0071] Before winding the coil on the coil skeleton 1, the coil skeleton 1 is first connected to the main drive shaft 7 through the skeleton clamping mechanism. During this process, the two elastic expansion plates 9 are first pressed to make the two elastic expansion plates 9 move inward, and then the coil skeleton 1 is horizontally sleeved on the outside of the two elastic expansion plates 9. When the baffle 10 on one end of each elastic expansion plate 9 is exposed from one end of the coil skeleton 1, the two elastic expansion plates 9 are released. At this time, the two elastic expansion plates 9 will clamp the coil skeleton 1 from the inside to the outside, and when the coil skeleton 1 is sleeved on the two elastic expansion plates 9, one end of the coil skeleton 1 will synchronously contact the two sets of pressure plates 11. When the two elastic expansion plates 9 are released, the two sets of pressure plates 11 will synchronously press the coil. One end of the frame 1 makes the other end of the coil frame 1 contact with the two stop bars 10, so that the entire coil frame 1 will be fixed on the two elastic expansion plates 9, and then the rotating frame 13 is pushed toward the coil frame 1 through the translation mechanism. In the process of the rotating frame 13 approaching the coil frame 1, the pin plug sleeve 14 provided on the rotating frame 13 will be sleeved on one of the pins 4 at the end of the coil frame 1, and the rotating frame 13 is connected to the coil frame 1 through the pin plug sleeve 14. When the coil frame 1 rotates, the rotating frame 13 will rotate with the coil frame 1. In actual use, an external motor (not shown in the figure) for driving its rotation is provided on the side of the main drive shaft 7;

[0072] A sufficient amount of No. 1 wire 67 is pre-wound on the No. 1 unwinding wheel 16, and a sufficient amount of No. 2 wire 68 is pre-wound on the No. 2 unwinding wheel 17. Before winding the coil on the coil frame 1, it is necessary to first connect one end of the No. 1 wire 67 and the No. 2 wire 68 to the coil frame 1. The specific process is as follows: one end of the No. 1 wire 67 on the No. 1 unwinding wheel 16 is pressed against one of the wire blocking plates 2, and is passed around the coil frame 1 from above, and then the end of the No. 1 wire 67 is downwardly connected to the No. 1 wire end clamping piece 12, one end of the No. 2 wire 68 on the No. 2 unwinding wheel 17 is pressed against another wire blocking plate 2, and is passed around the coil frame 1 from above, and then the end of the No. 2 wire 68 is downwardly connected to the No. 2 wire end clamping piece 15;

[0073] When the coil is wound around the coil frame 1, the main drive shaft 7 rotates. At the same time, the two driving blocks 18 on the linear sliding mechanism will respectively drive the No. 1 unwinding wheel 16 and the No. 2 unwinding wheel 17 to approach each other. During this process, the No. 1 wire 67 on the No. 1 unwinding wheel 16 will be wound around the coil frame 1 circle by circle, and the No. 2 wire 68 on the No. 2 unwinding wheel 17 will be wound around the coil frame 1 circle by circle. During actual winding, a cutter (not shown in the figure) is provided on the side of the unwinding component. When the No. 1 wire 67 and the No. 2 wire 68 wound on the coil frame 1 approach the stopper 5, the cutter will synchronously cut the No. 1 wire 67 and the No. 2 wire Wire 68 is cut off, and then one end of the No. 2 wire 68 is separated from the No. 2 wire end clamp 15, and then the rotating frame 13 is driven to move in the opposite direction through the translation mechanism, so that the rotating frame 13 gradually moves away from the coil frame 1. When the rotating frame 13 is away from the coil frame 1, one end of the No. 1 wire 67 is separated from the No. 1 wire end clamp 12, and then the coil frame 1 is removed from the two elastic expansion plates 9. When the coil frame 1 is removed, two groups of coils will be wound on the coil frame 1. Thereafter, the coil frame 1 is transported to the subsequent welding process, and the two broken ends of each group of coils are respectively connected to the corresponding two pins 4 through the welding process.

[0074] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A smaller size chip inductor automatic winding machine, characterized in that: The invention comprises a rotating assembly and an unwinding assembly, wherein the rotating assembly comprises a main drive shaft (7), a skeleton clamping mechanism and an auxiliary rotating mechanism, wherein the skeleton clamping mechanism is arranged on the main drive shaft (7), the skeleton clamping member comprises a connecting plate (8), an elastic pressure member and two elastic expansion plates (9), wherein the connecting plate (8) is vertically connected to the main drive shaft (7), the two elastic expansion plates (9) are symmetrically formed on one side of the connecting plate (8), each elastic expansion plate (9) is vertical, and each elastic expansion plate (9) is formed with a vertical stop bar (10) at one end away from the connecting plate (8), and the elastic pressure member comprises two groups of pressure plates (11), the two groups of pressure plates (11) correspond to the two elastic expansion plates (9), and each pressure plate (11) is vertically arranged beside the elastic expansion plate (9). The invention relates to a method for manufacturing a plurality of wire end clamping members (12) for use in a plurality of applications. The plurality of wire end clamping members (12) for use in a plurality of applications are characterized in that the plurality of wire end clamping members (12) for use in a plurality of applications are arranged on the plurality of wire end clamping members (12). The plurality of wire end clamping members (12) for use in a plurality of applications are characterized in that the plurality of wire end clamping members (12) for use in a plurality of applications are arranged on the plurality of wire end clamping members (12). The plurality of wire end clamping members (12) for use in a plurality of applications are characterized in that the plurality of wire end clamping members (12) for use in a plurality of applications are arranged on the plurality of wire end clamping members (12). 5), the rectangular frame (22) is connected to the connecting plate (8), the bottom of the rectangular frame (22) is an open structure, the bottom block (23) is horizontally fixed on the opening at the bottom of the rectangular frame (22), the clamping block (24) is horizontally arranged in the rectangular frame (22), the bottom of the clamping block (24) is formed with a plurality of No. 2 limit shafts (26) equidistantly distributed in the horizontal direction, each No. 2 limit shaft (26) vertically passes through the bottom block (23) downward, each No. 2 spring (25) is sleeved on the corresponding No. 2 limit shaft (26), the two ends of each No. 2 spring (25) are distributed to conflict with the clamping block (24) and the bottom block (23), a horizontal pull plate (27) is provided below the bottom block (23), and the lower end of each No. 2 limit shaft (26) is in contact with the pull plate ( 27) is fixedly connected, the translation mechanism includes a No. 1 strip base (28), a slide plate (29) and a locking member, the No. 1 strip base (28) is horizontally arranged, the slide plate (29) slides horizontally on the top of the No. 1 strip base (28), the locking member is arranged at the bottom of the slide plate (29), the locking member includes a fixing bolt (30) and a locking cap (31), the No. 1 strip base (28) is provided with a horizontal strip through groove (32), the fixing bolt (30) is vertically fixed to the bottom of the slide plate (29), and the fixing bolt (30) passes downward through the strip through groove (32), the locking cap (31) is screwed on the lower end of the fixing bolt (30), the top of the slide plate (29) is fixedly provided with an axle seat (33), and the rotating frame (13) is connected to the axle seat (33),The rotating frame (13) comprises a rectangular shell (34) and a driven shaft (35), wherein the driven shaft (35) is horizontally fixedly connected to one end of the rectangular shell (34), and the driven shaft (35) passes through the shaft seat (33). A No. 1 connecting rod (36) and a No. 2 connecting rod (37) are fixedly provided on both sides of the rectangular shell (34), respectively. The structure of the No. 2 line end clamping piece (15) is consistent with the structure of the No. 1 line end clamping piece (12), wherein the rectangular frame (22) in the No. 2 line end clamping piece (15) is fixedly connected to the No. 1 connecting rod (36), and the pin sleeve (14) is connected to the No. 2 connecting rod (37).

2. According to the smaller size chip inductor automatic winding machine of claim 1, it is characterized in that: One side of each group of pressure plates (11) is formed with a plurality of No. 1 limit shafts (19) equidistantly distributed in the vertical direction. Each No. 1 limit shaft (19) passes through the connecting plate (8) horizontally. A No. 1 spring (20) is sleeved on each No. 1 limit shaft (19). The two ends of the No. 1 spring (20) are respectively in contact with the pressure plate (11) and the connecting plate (8). One end of each No. 1 limit shaft (19) passing through the connecting plate (8) is threaded, and a No. 1 limit nut (21) is screwed on the threaded end of each No. 1 limit shaft (19).

3. The automatic winding machine for chip inductors with a smaller size according to claim 1, characterized in that: One end of the rectangular shell (34) facing away from the driven rotating shaft (35) is an open structure, and a through opening (38) is provided on an outer wall of one side of the rectangular shell (34). An abutment frame (39) is provided inside the rectangular shell (34), and the abutment frame (39) comprises a vertical plate (40) and two symmetrical abutment plates (41), each abutment plate (41) is perpendicular to the vertical plate (40), and one end of each abutment plate (41) is fixedly connected to a side of the vertical plate (40) facing the opening of the rectangular shell (34), and a horizontal strip block (42) is fixedly provided on a side of the vertical plate (40) facing away from the opening of the rectangular shell (34), and a strip slot (43) is provided inside the strip block (42), and the strip slot (43) is parallel to the strip block (42). An insert strip (44) is inserted into the strip slot (43), strip avoidance grooves (45) are provided on both sides of the rectangular shell (34), two ends of the insert strip (44) respectively pass through the two strip avoidance grooves (45), a shifting block (46) is fixedly provided on the end of each insert strip (44), a group of No. 1 convex strips (47) and a group of No. 2 convex strips (48) are formed on the inner walls of both sides of the rectangular shell (34), the vertical plate (40) is located between the No. 1 convex strip (47) and the No. 2 convex strip (48), each contact plate (41) is formed with a No. 1 inclined surface (49) on one end facing the opening of the rectangular shell (34), and each stop bar (10) is formed with a No. 2 inclined surface (50) that is wedge-matched with the No. 1 inclined surface (49).

4. The automatic winding machine for chip inductors with a smaller size according to claim 1, characterized in that: A support plate (51) is fixedly provided on the connecting plate (8) and extends vertically downward. Two third limiting shafts (52) are formed on the support plate (51) and are symmetrical with respect to the rectangular frame (22). Limiting ears (53) are formed on both sides of the rectangular frame (22). Each third limiting shaft (52) passes horizontally through the corresponding limiting ear (53). A third spring (54) is sleeved on each third limiting shaft (52). Two ends of the third spring (54) are respectively connected to the limiting ear (53) and the support plate (51). A No. 2 limiting nut (55) is screwed on one end of the No. 3 limiting shaft (52) passing through the limiting ear (53), and a No. 1 inclined wedge block (56) is formed on both sides of the pull plate (27). Two No. 2 inclined wedge blocks (57) are formed on the support plate (51), and each No. 1 inclined wedge block (56) is wedge-matched with the corresponding No. 2 inclined wedge block (57). An avoidance opening (58) for avoiding the rectangular frame (22) is opened in the middle of the support plate (51), and a push block (59) is fixed on the support plate (51).

5. The automatic winding machine for chip inductors with a smaller size according to claim 1, characterized in that: The linear sliding mechanism further comprises a second bar base (60), a threaded rod (61) and a support (62); the second bar base (60) is horizontally fixed on the support (62); the threaded rod (61) is horizontally rotated on the top of the second bar base (60); the two groups of driving blocks (18) are both slid on the top of the second bar base (60); and the bottom of each group of driving blocks (18) is fixedly provided with a threaded sleeve (63) sleeved on the threaded rod (61).

6. The automatic winding machine for chip inductors with a smaller size according to claim 5, characterized in that: Two symmetrical vertical rods (64) are fixedly provided on the top of each group of driving blocks (18); the first unwinding wheel (16) and the second unwinding wheel (17) are arranged between the corresponding two vertical rods (64); both ends of the first unwinding wheel (16) and the second unwinding wheel (17) are formed with rotating pins (65); each rotating pin (65) is rotatably connected to the upper end of the corresponding vertical rod (64); and each rotating pin (65) is sleeved with a rubber sleeve (66).

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