Wire winding bending device for processing integrated molded inductors

Abstract

The present invention provides a winding bending device for processing an integrally formed inductor, comprising a bottom plate, a copper wire coil, a front vertical plate and a rear vertical plate fixed on the bottom plate, a circular hole is opened on the front vertical plate, a hollow rotating drum is inserted in the circular hole, the rotating drum is rotatably connected to the front vertical plate through a bearing, the front end of the rotating drum is eccentrically connected to an outlet pipe, and the rear end of the rotating drum is connected to an inlet pipe arranged concentrically with the rotating drum; a winding shaft arranged concentrically with the rotating drum is fixed on the rear side of the rear vertical plate, a mounting plate perpendicular to the rear vertical plate is fixedly connected to the front side of the rear vertical plate, a discharge mechanism for pushing the coil out of the winding shaft is arranged on the upper end surface of the mounting plate, a wire hooking mechanism for clamping the coil is arranged on both sides of the mounting plate, and a bending mechanism for bending the clamped coil is also arranged on both sides of the mounting plate. The device integrates the two processes of copper wire winding and electrode bending into one device, and directly bends the two copper wire ends into electrodes after winding, without transferring the coil, thereby greatly improving production efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of inductor manufacturing and relates to a winding bending device for processing an integrally formed inductor. Background Art

[0002] The emergence of one-piece molded inductors is attributed to the development of computer motherboard technology and power supply technology: the CPU main frequency is getting higher and higher, so there are high requirements for stable power supply and filtering. One-piece molded inductors solve this problem. They can work for a long time under high current conditions and can provide stable power supply for the CPU. Of course, the main function of the inductor is filtering, and in this respect, one-piece molded inductors are not inferior. Good material properties and special design make the inductor structure more stable and the impedance lower, so it has higher efficiency.

[0003] The one-piece molded inductor includes a seat body and a winding body. The seat system is formed by burying the winding body in metal magnetic powder and die-casting. The SMD pins are the lead pins of the winding body directly formed on the surface of the seat body, which has higher inductance and smaller leakage inductance than traditional inductors. The inductor is designed with an SMD structure, which will not damage the inductor during use and can improve production efficiency. The fully enclosed structure of the one-piece molded inductor has a good magnetic shielding effect, which can effectively reduce electromagnetic interference and is used in industries such as automotive, military, medical, and aerospace with high reliability requirements. The existing manufacturing process of the inductor includes the following steps: T-shaped blank preparation, winding, bending, electrode B side paint stripping, U-shaped blank preparation, hot pressing, roller spraying, electrode A side paint stripping, electroplating electrodes, testing, and packaging. The existing process has many steps and requires multiple station transfers, resulting in low production efficiency. Summary of the invention

[0004] The purpose of the present invention is to solve the above problems in the prior art and to propose a winding and bending device for processing an integrally formed inductor, which integrates winding, wire cutting and bending, does not require coil transfer and has high production efficiency.

[0005] The purpose of the present invention can be achieved through the following technical solutions: a winding and bending device for processing an integrally formed inductor, comprising a bottom plate, a copper wire roll, a front vertical plate and a rear vertical plate fixed on the bottom plate, the front vertical plate and the rear vertical plate are arranged parallel to each other, characterized in that a circular hole is opened on the front vertical plate, a hollow rotating drum is passed through the circular hole, the rotating drum is rotatably connected to the front vertical plate through a bearing, the front end of the rotating drum is eccentrically connected to an outlet pipe, the rear end of the rotating drum is connected to an inlet pipe concentrically arranged with the rotating drum, the copper wire roll is rotatably arranged on the bottom plate and located at the rear side of the rotating drum, the rear end of the rotating drum is fixedly connected to a synchronously rotating driven gear, a motor is fixed to the front vertical plate, and a driving gear meshing with the driven gear is fixed on the output shaft of the motor;

[0006] A winding shaft concentrically arranged with the rotating drum is fixed to the rear side surface of the rear vertical plate, and a mounting plate perpendicular to the rear vertical plate is fixedly connected to the front side surface of the rear vertical plate. A unloading mechanism for pushing the coil from the winding shaft is provided on the upper end surface of the mounting plate, and a wire hooking mechanism for clamping the coil is provided on both sides of the mounting plate, and a bending mechanism for bending the clamped coil is also provided on both sides of the mounting plate.

[0007] Furthermore, the unloading mechanism includes a push plate which is sleeved on the winding shaft and slides transversely along the winding shaft, and a unloading cylinder which is fixed on the upper end surface of the mounting plate. The telescopic rod of the unloading cylinder passes through the rear vertical plate and is fixedly connected to the push plate.

[0008] Furthermore, the line hooking mechanism includes a line hooking rod, a push-pull rod box, a line hooking cylinder and a guide wheel rotatably connected to the end of the mounting plate, the front end of the line hooking rod is provided with a U-shaped hook head, one of the heads of the U-shaped hook head is hinged with a stop rod, the other head of the U-shaped hook head is provided with a protruding limiting portion that abuts against the stop rod, the rear end of the stop rod is connected to the U-shaped hook head with an elastic rubber band, the rear end of the line hooking rod is provided with a push-pull block, a square line hooking hole for the line hooking rod to pass through is opened on the rear vertical plate, the push-pull rod box is fixed to the side of the mounting plate, and the push-pull rod box An inner cavity is opened inside for the wire hooking rod to slide, and a spring is arranged in the inner cavity. One end of the spring rests on the push-pull block at the tail of the wire hooking rod, and the other end of the spring rests on the bottom wall of the inner cavity. An arc-shaped cutting blade is fixed on the inner side of the stop rod, and a rope is tied to the push-pull block. The rope passes through the tail of the push-pull rod box and is wrapped around the guide wheel. The other end of the rope is tied to the push-pull rod in the push-pull rod box on the other side. The wire hooking cylinder is fixed on the front end of one of the push-pull rod boxes, and a connecting block is fixed on the telescopic rod of the wire hooking cylinder, and the connecting block is welded and fixed to the wire hooking rod.

[0009] Furthermore, the bending mechanism includes a clamping cylinder fixed on the rear side of the rear vertical plate and a bending cylinder fixed on the mounting plate. A clamping block that can clamp the hooked copper wire is fixed on the telescopic rod of the clamping cylinder. A bending block that bends the outer end of the clamped copper wire to the side wall of the clamping block is fixed on the telescopic rod of the bending cylinder. Both the bending block and the clamping block are square metal blocks.

[0010] Furthermore, the front end of the outlet pipe has a pointed mouth portion bent toward the winding shaft.

[0011] The copper wire is unwound from the copper wire reel, enters the rotating drum from the inlet pipe, and then passes through the pointed mouth of the outlet pipe. When winding the wire for the first time, the wire head can be manually passed through the square hole of the wire hook and pulled to the work station corresponding to the bending block. The clamping cylinder is driven to clamp the copper wire, and the bending cylinder is driven to squeeze the head of the copper wire. The bending block moves up so that the head of the copper wire is bent and close to the side of the clamping block. At the same time, the motor drives the driven gear through the active gear, drives the rotating drum to rotate, and the outlet pipe moves circumferentially around the winding shaft, winding the copper wire on the winding shaft to form a coil. After bending, the outlet pipe stays in the original axially symmetrical position. Due to the cooperation of the guide wheel, rope and spring, whether the wire hook cylinder moves forward or backward, it can drive one of the wire hook rods forward and the other wire hook rod backward. The telescopic rod of the wire hooking cylinder is driven to retreat or advance, so that the wire hooking rod corresponding to the wire outlet tube is advanced. Since the pulling force of the elastic rubber band is relatively weak, when the stop rod touches the copper wire, the copper wire will squeeze the stop rod and swing inward until the copper wire enters the U-shaped hook head. At this time, the wire hooking cylinder retreats, and the clamping cylinder drives the clamping block to press the copper wire. If the wire hooking cylinder continues to retreat, the cutting blade will cut the copper wire. The bending cylinder drives the bending block to bend the cut copper wire. After the bending is completed, the clamping cylinder drives the clamping block to retreat a little to loosen the processed coil. The unloading cylinder drives the pushing plate to move the coil away from the winding shaft. The clamping cylinder drives the clamping block to clamp the remaining copper wire, and the motor drives the drum to wind again.

[0012] Compared with the prior art, the winding bending device for processing an integrally formed inductor has the following advantages:

[0013] 1. The two processes of copper wire winding and electrode bending are integrated into one device. After winding the wire, the two wire ends are directly bent into electrodes without transferring the coil, which greatly improves production efficiency.

[0014] 2. The wire hooking mechanism can hook the wire segment at the outlet of the wire pipe and pull it to the back side of the mounting plate. After the clamping block is pressed, the wire hooking cylinder continues to drive the wire hooking rod back until the cutting blade cuts the copper wire. It has a high degree of automation and integrates winding, cutting and bending. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the winding bending device for processing the integrated molded inductor.

[0016] Figure 2 It is a top view schematic diagram of the winding bending device for processing the integrated molded inductor.

[0017] Figure 3 It is a structural diagram of the line hooking mechanism when it is working.

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the hook rod.

[0019] Figure 5It is the coil after processing.

[0020] In the figure, 1, bottom plate; 2, copper wire coil; 3, front vertical plate; 4, rear vertical plate; 41, wire hooking square hole; 5, rotating drum; 51, outlet pipe; 52, inlet pipe; 53, driven gear; 54, pointed mouth; 6, motor; 61, driving gear; 7, winding shaft; 8, mounting plate; 9, unloading cylinder; 10, pushing sheet; 11, wire hooking mechanism; 111, wire hooking rod; 1111, U-shaped hook head; 11 12. Backstop rod; 1113. Limiting part; 1114. Elastic rubber band; 1115. Push-pull block; 1116. Cutting blade; 112. Push-pull rod box; 113. Wire hook cylinder; 114. Guide wheel; 115. Spring; 116. Rope; 117. Connecting block; 12. Bending mechanism; 121. Pressing cylinder; 122. Pressing block; 123. Bending cylinder; 124. Bending block. DETAILED DESCRIPTION

[0021] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0022] like Figure 1 , Figure 2 As shown, the winding bending device for processing an integrated inductor comprises a bottom plate 1, a copper wire roll 2, a front vertical plate 3 and a rear vertical plate 4 fixed on the bottom plate 1, the front vertical plate 3 and the rear vertical plate 4 are arranged parallel to each other, a circular hole is opened on the front vertical plate 3, a hollow rotating drum 5 is inserted in the circular hole, the rotating drum 5 is rotatably connected to the front vertical plate 3 through a bearing, the front end of the rotating drum 5 is eccentrically connected to an outlet pipe 51, and the front end of the outlet pipe 51 has a pointed mouth 54 bent toward the winding shaft 7. The rear end of the rotating drum 5 is connected to an inlet pipe 52 arranged concentrically with the rotating drum 5, the copper wire roll 2 is rotatably arranged on the bottom plate 1 and located at the rear side of the rotating drum 5, the rear end of the rotating drum 5 is fixedly connected to a synchronously rotating driven gear 53, a motor 6 is fixed on the front vertical plate 3, and a driving gear 61 meshing with the driven gear 53 is fixed on the output shaft of the motor 6.

[0023] A winding shaft 7 which is concentric with the rotating drum 5 is fixed to the rear side surface of the rear upright plate 4, and a mounting plate 8 which is perpendicular to the rear upright plate 4 is fixedly connected to the front side surface of the rear upright plate 4. A discharge mechanism for pushing the coil off the winding shaft 7 is provided on the upper end surface of the mounting plate 8, and a wire hooking mechanism 11 which can clamp the coil is provided on both sides of the mounting plate 8, and a bending mechanism 12 for bending the clamped coil is also provided on both sides of the mounting plate 8.

[0024] like Figure 3 As shown, the unloading mechanism includes a push plate 10 which is sleeved on the winding shaft 7 and slides laterally along the winding shaft 7, and a unloading cylinder 9 fixed on the upper end surface of the mounting plate 8. The telescopic rod of the unloading cylinder 9 passes through the rear vertical plate 4 and is fixedly connected to the push plate 10.

[0025] like Figure 3 , Figure 4 As shown, the line hooking mechanism 11 includes a line hooking rod 111, a push-pull rod box 112, a line hooking cylinder 113 and a guide wheel 114 rotatably connected to the end of the mounting plate 8. The front end of the line hooking rod 111 has a U-shaped hook head 1111, one of the heads of the U-shaped hook head 1111 is hinged with a stop rod 1112, and the other head of the U-shaped hook head 1111 has a protruding limiting portion 1113 that abuts against the stop rod 1112. The tail of the stop rod 1112 is connected to the U-shaped hook head 1111 with an elastic rubber band 1114, the tail of the line hooking rod 111 has a push-pull block 1115, and a square line hooking hole 41 for the line hooking rod 111 to pass through is opened on the rear vertical plate 4. The push-pull rod box 112 is fixed to the side of the mounting plate 8, and the push-pull rod box An inner cavity is opened in 112 for the wire hooking rod 111 to slide, and a spring 115 is arranged in the inner cavity. One end of the spring 115 abuts against the push-pull block 1115 at the tail of the wire hooking rod 111, and the other end of the spring 115 abuts against the bottom wall of the inner cavity. An arc-shaped cutting blade 1116 is fixed on the inner side of the stop rod 1112, and a rope 116 is tied to the push-pull block 1115. The rope 116 passes through the tail of the push-pull rod box 112 and is wrapped around the guide wheel 114. The other end of the rope 116 is tied to the push-pull rod in the push-pull rod box 112 on the other side. The wire hooking cylinder 113 is fixed on the front end of one of the push-pull rod boxes 112, and a connecting block 117 is fixed on the telescopic rod of the wire hooking cylinder 113. The connecting block 117 is welded and fixed to the wire hooking rod 111.

[0026] like Figure 1 , Figure 4 As shown, the bending mechanism 12 includes a clamping cylinder 121 fixed to the rear side of the rear vertical plate 4, and a bending cylinder 123 fixed to the mounting plate 8. A clamping block 122 that can clamp the hooked copper wire is fixed on the telescopic rod of the clamping cylinder 121, and a bending block 124 that bends the outer end of the clamped copper wire to the side wall of the clamping block 122 is fixed on the telescopic rod of the bending cylinder 123. The bending block 124 and the clamping block 122 are both square metal blocks.

[0027] Figure 5The shape of the coil after forming is shown, and the specific forming steps are as follows: the copper wire is released from the copper wire reel 2, enters the drum 5 from the inlet pipe 52, and then passes through the pointed mouth 54 of the outlet pipe 51. When winding the wire for the first time, the wire head can be manually passed through the hook wire square hole 41 and pulled to the station corresponding to the bending block 124, and the clamping cylinder 121 is driven to clamp the copper wire, and the bending cylinder 123 is driven to squeeze the copper wire head, and the bending block 124 moves up to bend the copper wire head and close to the side of the clamping block 122. At the same time, the motor 6 drives the driven gear 53 through the driving gear 61, drives the drum 5 to rotate, and the outlet pipe 51 moves circumferentially around the winding shaft 7, and the copper wire is wound on the winding shaft 7 to form a coil. After bending, the outlet pipe 51 stays in the original axially symmetrical position. Due to the coordination of the guide wheel 114, the rope 116 and the spring 115, no matter the hooking cylinder 113 moves forward or backward, one of the hooking rods 111 can be driven forward and the other hooking rod 111 can be driven backward. The telescopic rod of the hooking cylinder 113 is driven backward or forward to make the hooking rod 111 corresponding to the outlet pipe 51 move forward. Since the pulling force of the elastic rubber band 1114 is relatively weak, when the stop rod 1112 touches the copper wire, the copper wire will squeeze the stop rod 1112 to swing inward until the copper wire enters the U-shaped hook head 1111. At this time, the hooking cylinder 113 moves backward, and the pressing cylinder 121 drives the pressing block 122 to press the copper wire. If the copper wire is further withdrawn, the cutting blade 1116 will cut the copper wire, and the bending cylinder 123 will drive the bending block 124 to bend the cut copper wire. After the bending is completed, the pressing cylinder 121 will drive the pressing block 122 to withdraw a little to loosen the processed coil, and the unloading cylinder 9 will drive the pushing plate 10 to move the coil away from the winding shaft 7, and the pressing cylinder 121 will drive the pressing block 122 to press the remaining copper wire, and the motor 6 will drive the rotating drum 5 to wind again.

[0028] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A winding bending device for processing an integrally formed inductor, comprising a bottom plate, a copper wire coil, a front vertical plate and a rear vertical plate fixed on the bottom plate, wherein the front vertical plate and the rear vertical plate are arranged parallel to each other, and characterized in that: A circular hole is opened on the front vertical plate, and a hollow rotating drum is inserted into the circular hole. The rotating drum is rotatably connected to the front vertical plate through a bearing. The front end of the rotating drum is eccentrically connected to an outlet pipe, and the rear end of the rotating drum is connected to an inlet pipe concentrically arranged with the rotating drum. The copper wire roll is rotatably arranged on the bottom plate and located at the rear side of the rotating drum. The rear end of the rotating drum is fixedly connected to a driven gear that rotates synchronously. A motor is fixed on the front vertical plate, and a driving gear meshing with the driven gear is fixed on the output shaft of the motor. The rear side of the rear vertical plate is fixed with a winding shaft arranged concentrically with the rotating drum, and the front side of the rear vertical plate is fixedly connected with a mounting plate perpendicular to the rear vertical plate, and the upper end surface of the mounting plate is provided with a unloading mechanism for pushing the coil from the winding shaft, and a wire hooking mechanism for clamping the coil is respectively provided on both sides of the mounting plate, and a bending mechanism for bending the clamped coil is also respectively provided on both sides of the mounting plate. The wire hooking mechanism includes a wire hooking rod, a push-pull rod box, a wire hooking cylinder and a guide wheel rotatably connected to the end of the mounting plate. The front end of the wire hooking rod has a U-shaped hook head, one of the heads of the U-shaped hook head is hinged with a stop rod, and the other head of the U-shaped hook head has a protruding limiting portion that abuts against the stop rod, the tail of the stop rod is connected to the U-shaped hook head with an elastic rubber band, the tail of the wire hook rod has a push-pull block, and a wire hooking square hole for the wire hooking rod to pass through is opened on the rear vertical plate, and the push-pull rod box is fixed on the side of the mounting plate. An inner cavity is opened inside for the wire hooking rod to slide, and a spring is arranged in the inner cavity. One end of the spring rests on the push-pull block at the tail of the wire hooking rod, and the other end of the spring rests on the bottom wall of the inner cavity. An arc-shaped cutting blade is fixed on the inner side of the stop rod, and a rope is tied to the push-pull block. The rope passes through the tail of the push-pull rod box and is wrapped around the guide wheel, and the other end of the rope is tied to the push-pull rod in the push-pull rod box on the other side. The wire hooking cylinder is fixed on the front end of one of the push-pull rod boxes, and a connecting block is fixed on the telescopic rod of the wire hooking cylinder, and the connecting block is welded and fixed to the wire hooking rod. The bending mechanism includes a clamping cylinder fixed on the rear side of the rear vertical plate and a bending cylinder fixed on the mounting plate. A clamping block that can compress the hooked copper wire is fixed on the telescopic rod of the clamping cylinder, and a bending block that bends the outer end of the compressed copper wire to the side wall of the clamping block is fixed on the telescopic rod of the bending cylinder. Both the bending block and the clamping block are square metal blocks.

2. The wire-winding bending device for processing an integrally formed inductor according to claim 1, characterized in that: The unloading mechanism comprises a push plate which is sleeved on the winding shaft and slides transversely along the winding shaft, and a unloading cylinder which is fixed on the upper end surface of the mounting plate. The telescopic rod of the unloading cylinder passes through the rear vertical plate and is fixedly connected with the push plate.

3. The wire-winding bending device for processing an integrally formed inductor according to claim 1, characterized in that: The front end of the outlet pipe is provided with a pointed mouth portion bent toward the winding shaft.

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