Automatic assembling machine for annular common mode choke

Abstract

The invention discloses an annular common mode inductor automatic forming machine which structurally comprises a rack, a magnetic ring feeding mechanism, a cross-shaped clamp table mechanism, a wire hooking device mechanism, a material transferring module mechanism, a pin cutting device, a semi-finished product cam frame mechanism, a wire pulling device mechanism, a tin soaking cam frame mechanism, two tin furnace mechanisms and a detection table mechanism. According to the invention, multiple functions of inductor winding, base installation, tin soaking and testing are integrated, the process is comprehensive and automatic, one device replaces four devices, and manpower, sites and devices are saved.

Description

Technical Field

[0001] The present invention relates to the field of inductor manufacturing, and particularly to an automatic assembly machine for toroidal common mode inductors. Background Art

[0002] With the development and progress of technology, electronic products are becoming increasingly rich. Inductors are an important part of electronic components. Among them, toroidal common mode inductors are widely used and have a large consumption. A common mode inductor, also known as a common mode choke coil, is a complete common mode inductor with a toroidal magnetic core. On the toroidal magnetic core, there are two sets of enameled copper wire coils (or three-layer insulated wires) wound in opposite directions, and a four-pin socket is installed. The four wire ends are tightly wound around the four pins of the socket, and the four pins and the wire ends also need to be tinned.

[0003] The existing equipment needs to wind the wire with a winding machine first when processing a toroidal common mode inductor, and then manually install the four-pin socket. After installing the socket, it is taken to a tinning machine for tinning. After tinning, it is also necessary to test its inductance value, DC resistance, withstand voltage performance, etc. Therefore, processing a finished inductor requires not only three types of equipment and labor, a total of four processes. Among them, the process of manually installing the socket is particularly time-consuming and labor-intensive. There is a lack of a device in the existing market that can complete the four processes with one machine. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the existing technology, and provide a new solution that integrates inductor winding, socket installation, tinning, and testing, and is fully automated in the process. This solution integrates four processes into one, replacing four devices with one device, and the process is highly automated, which not only saves time, labor, and space, but also reduces equipment costs.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions: A toroidal common mode inductor assembly machine integrating multiple functions, its structure includes: a frame (1), a magnetic core feeding mechanism (2), a cross clamp table mechanism (3), a wire hooking mechanism (4), a material transfer module mechanism (5), a leg cutter (6), a semi-finished product cam rack mechanism (7), a wire dialing mechanism (8), a tinning cam rack mechanism (9), a tin furnace mechanism (10), and a detection table mechanism (11).

[0006] The frame is made of square tubes. There is an electric control box below the frame, and a control box above the frame. The frame is an installation platform for other pneumatic functional structures.

[0007] The magnetic ring feeding mechanism includes a vertical plate 2-1, a cylinder 2-2, a pusher block 2-3, sensors 2-4, sensors 2-5, and a feeding vibrating bowl 2-6. The vertical plate 2-1 and the vibrating bowl 2-6 are installed on the frame. When the magnetic ring reaches the pusher block 2-3 along the feeding channel of the vibrating bowl 2-6, the sensor 2-4 obtains a signal, and the cylinder 2-2 pushes the pusher plate 2-3 forward. When the sensor 2-5 obtains a signal, the cross clamp 3-4 of the cross clamp table mechanism clamps or releases, and the clamping of the magnetic ring is completed.

[0008] The cross clamp table mechanism includes a base 3-1, a stepping motor 3-2, a cam divider 3-3, a cross clamp 3-4, a cylinder 3-5, a wire feeding pair 3-6, a wire inlet bridge 3-7, and a copper wire straightening clamp 3-8. The base is fixed on the frame. For each revolution of the stepping motor 3-2, the cam divider 3-3 rotates 90 degrees. The wire inlet bridge 3-7 and the cross clamp 3-4 are arranged at a 45-degree angle. The cylinder 3-5 is directly above the cross clamp to control the clamping of the cross clamp 3-4 on the material. The wire feeding pair 3-6 is fixed on the wire inlet bridge, and the wire feeding pair feeds the copper wire to the magnetic ring and cuts it after a certain length. After the magnetic ring winding is completed, the copper wire straightening clamp 3-8 cooperates with the material conveying module mechanism to straighten the copper wire head.

[0009] The wire hooking mechanism includes a base plate 4-1, a rotating frame 4-2, a rotating frame motor 4-3, a Z-direction belt 4-4, a vertical hooking needle 4-5, a z-direction motor 4-6, a cam pair 4-7, a cylinder 4-8, a stepping motor 4-9, a horizontal hooking needle 4-10, and a bearing 4-11. The base plate 4-1 is fixed on the frame as the support plate of the entire mechanism. The rotating frame 4-2 bears the core components of the wire hooking mechanism, and the bearing 4-11 is softly connected between them. The rotating motor 4-3 drives the rotating frame 4-2 to make a 360-degree rotational movement. The Z-direction motor 4-6 is at the bottom of the rotating frame 4-2, and the Z-direction belt 4-4 is connected to the Z-direction motor 4-6. The vertical hooking needle 4-5 is fixed at an appropriate point on the Z-direction belt 4-4 and makes a vertical reciprocating movement following the Z-direction belt 4-4. The cam pair 4-7 is at the top of the rotating frame, and the stepping motor 4-9 is connected to the cam pair 4-7 and can drive the cam pair 4-7 to make a lying U-shaped movement. The horizontal hooking needle 4-10 is at the top of the cam pair 4-7, and the cylinder 4-8 is behind the horizontal hooking needle 4-10 to drive the horizontal hooking needle 4-10 to make a horizontal fan-shaped movement.

[0010] The material transfer module mechanism includes a support frame 5-1, a guide rail pair 5-2, a motor 5-3, a Z-direction cylinder 5-4, a rotary cylinder 5-5, and a clamping cylinder 5-6. The support frame 5-1 is fixed on the machine frame. The guide rail pair 5-2 is installed on the upper part of the support frame 5-1. The Z-direction cylinder 5-4 is installed on the slider of the guide rail pair 5-2. The rotary cylinder 5-5 is fixed on the push plate of the Z-direction cylinder 5-5. The output end of the rotary cylinder 5-5 is equipped with a finger cylinder 5-6. After receiving the instruction, the finger cylinder 5-6 picks up the inductance semi-finished product with the wire wound from the cross pliers table 3 and places it at the copper wire straightening clamp 3-8. The copper wire 3-8 changes from open to clamped. The motor 5-3 drives the Z-direction cylinder 5-4 to translate, that is, to shape the copper wire head, and then move forward to a suitable position. The Z-direction cylinder 5-4 pushes down, and the rotary cylinder 5-5 rotates 90 degrees to send the inductance with the copper wire wound into the lead clipper.

[0011] The lead clipper includes 4 columns 6-1, a panel 6-2, 2 small fixing plates 6-3, a connecting plate 6-4, a wire rubbing plate 6-5, 2 double-acting cylinders 6-6, 2 cutting knives 6-7, 2 wire pulling plates 6-8, 2 double-acting cylinders 6-9, 2 wire pushing plates 6-10, a limit plate 6-11, a cross 6-12, 2 wire pressing blocks 6-13, and an auxiliary module 6-14. The 4 columns 6-1 are installed on the machine frame. The panel 6-2 is fixed on the 4 columns. The 2 small fixing plates 6-3 are distributed on both sides of the central square hole of the panel 6-2 in the width direction. The connecting plate 6-4 is fixed on the 2 small fixing plates. The connecting plate 6-4 has a central square hole. The wire rubbing plate 6-5 is at the center of the square hole. The double-acting cylinder 6-6 is fixed under the panel. When the cutting knife 6-7 is pushed forward, the wire pulling plate 6-8 is even more forward. When it touches the wire rubbing plate 6-5, it is forced to move downward, playing a role in straightening the copper wire. The cutting knife 6-7 continues to complete the wire cutting. At the same time, the double-acting cylinder 6-9, the wire pushing plate 6-11, and the wire pressing block 6-13 move towards the center position, playing a role in positioning the wire head. The auxiliary module 6-14 helps the wire pulling plate to reset and recycle the waste wire.

[0012] The semi-finished product cam rack mechanism includes a T-shaped rack 7-1, a stepping motor 7-2, a cam plate 7-3, a cross guide rail pair 7-4, a left sensor 7-5, a right sensor 7-6, a thin cylinder 7-7, a finger cylinder 7-8, a cylinder shear 7-9, a three-axis cylinder 7-10, and a limit frame 7-11. The material taking seat is fixed on the machine frame. The stepping motor 7-2 rotates, and the cam plate 7-3 approaches the left sensor 7-5. The finger cylinder 7-8 picks up the inductance from the lead clipper. The cam plate rotates 90 degrees. The thin cylinder ejects, and the four wire heads of the inductance are placed at the cylinder shear 7-9 to break the insulation layer, facilitating tin dipping. The three-axis cylinder 7-10 and the limit frame 7-11 play an auxiliary role. The cam plate continues to rotate 90 degrees to the right sensor 7-6, and the finger cylinder 7-8 releases, putting the inductance into the pin straightener.

[0013] The wire-pushing mechanism includes a wire-pushing base 8-1, a three-axis cylinder 8-2, a material-pushing rod 8-3, a vibrating bowl 8-4, a three-axis cylinder 8-5, a finger cylinder 8-6, a wire pusher 8-7, a lifting frame 8-8, a cross-shaped swallowtail slide rail 8-9, and a wire winder 8-10. The wire-pushing base 8-1 is fixed on the frame. There is a three-axis cylinder 8-2 on one side above the wire-pushing base. There is a material-pushing rod 8-3 on the cylinder push plate of the three-axis cylinder 8-2. There is a square opening notch at the front end of the material-pushing rod 8-3, and the notch is opposite to the discharge port of the vibrating bowl 8-4. The three-axis cylinder 8-5 is on the opposite side of the three-axis cylinder 8-2 above the wire-pushing base. There is a finger cylinder 8-6 on the push plate of the three-axis cylinder 8-5, which can clamp the processed product. There are 2 sets of wire pushers 8-7 symmetrically installed on the flat plate of the wire-pushing base 8-1. The lifting frame 8-8 is below the wire-pushing base and can move up and down. There is a cross-shaped swallowtail slide rail 8-9 on the lifting frame 8-8, which can move in both X and Y directions. There is a wire winder 8-10 on the cross-shaped swallowtail slide rail to wind the wire pushed by the wire pusher smoothly.

[0014] The tin-foaming cam frame mechanism includes a T-shaped frame 9-1, a stepping motor 9-2, a cam plate 9-3, a cross-shaped guide rail pair 9-4, a left sensor 9-5, a right sensor 9-6, a connecting plate 9-7, a thin cylinder 9-8, a finger cylinder 9-9, a sheet metal 9-10, and a three-axis cylinder 9-11, a small sheet metal 9-12. The material-taking base is fixed on the frame. The stepping motor 9-2 rotates, and the cam plate 9-3 approaches the left sensor 9-5. The finger cylinder 9-8 clamps the inductor from the wire-pushing mechanism. The cam plate rotates 180 degrees, and the right sensor gets a signal. The thin cylinder 9-8 ejects, and the four feet of the inductor seat sink into the flux and tin liquid. After a certain time, the thin cylinder 9-8 retracts, the three-axis cylinder 9-11 ejects, and the finger cylinder 9-9 releases, completing the action cycle.

[0015] The tin furnace mechanism includes a sheet metal 10-1, 4 cushion sleeves 10-2, a silica gel plate 10-3, a fiberglass board 10-4, a tin furnace 10-5, a heating rod 10-6, and a thermocouple 10-7. The sheet metal 10-1 is installed on the frame, and there are cushion sleeves 10-2 on it. Above the cushion sleeves, there is a heat insulation layer of silica gel plate 10-3 and fiberglass board 10-4. There is a tin furnace 10-5 on the fiberglass board. There are holes on the side of the tin furnace, and the heating rod 10-6 and the thermocouple 10-7 are respectively installed. There are 2 sets of this mechanism, one set for loading flux and one set for tin melt.

[0016] The test bench mechanism includes a base 11-1, two cylinders 11-2, a spring rod 11-3, a cylinder 11-4, two shafts 11-5, two blanking chutes 11-6, and two linear bearings 11-7. The base 11-1 is installed on the frame. The two cylinders 11-2 are symmetrically installed at the top of the base 11-1. There are two spring rods 11-3 installed on the cylinder top plates for testing whether the inductor is qualified. The linear bearings 11-7 are located at the middle height position of the base. The shafts 11-5 slide on the linear bearings. Blanking chutes 11-6 are installed at both ends of the shafts. Qualified products fall into one side of the chute, while conversely, the cylinder 11-4 ejects, and unqualified products fall on the opposite side. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is the frame structure diagram of an embodiment of an annular common mode inductor automatic assembly machine of the present invention Figure 2 It is the magnetic ring feeding structure diagram of an embodiment of an annular common mode inductor automatic assembly machine of the present invention Figure 3 It is the cross pliers table structure diagram of an embodiment of an annular common mode inductor automatic assembly machine of the present invention Figure 4 It is the magnetic ring feeding structure diagram of an embodiment of an annular common mode inductor automatic assembly machine of the present invention Figure 5 It is the material transfer module structure diagram of an embodiment of an annular common mode inductor automatic assembly machine of the present invention Figure 6 It is the lead trimming cutter structure diagram of an embodiment of an annular common mode inductor automatic assembly machine of the present invention Figure 7 It is the semi-finished product cam rack structure diagram of an embodiment of an annular common mode inductor automatic assembly machine of the present invention Figure 8 It is the wire dialing device structure diagram of an embodiment of an annular common mode inductor automatic assembly machine of the present invention Figure 9 It is the solder dipping cam rack structure diagram of an embodiment of an annular common mode inductor automatic assembly machine of the present invention Figure 10 It is the solder pot structure diagram of an embodiment of an annular common mode inductor automatic assembly machine of the present invention Figure 11 Structural diagram of the detection table of an embodiment of an automatic assembly machine for a ring common mode inductor of the present invention Figure 12 Overall structural diagram of an embodiment of an automatic assembly machine for a ring common mode inductor of the present invention Figure 12 In the figure: 1 (frame), 2 (magnetic ring feeding mechanism), 3 (cross clamp table mechanism), 4 (wire hooking mechanism), 5 (material transfer module mechanism), 6 (lead trimming mechanism), 7 (semi-finished product cam frame mechanism), 8 (wire dialing mechanism), 9 (tin dipping cam frame mechanism), 10 (soldering furnace mechanism), 11 (detection table mechanism).

[0019] The specific implementation method is as follows: The following combines the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the invention, rather than all the embodiments. Based on the embodiments of the invention, other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection scope of the present invention.

[0020] Please refer to Figure 1-11 , a ring common mode inductor assembly machine integrating multiple functions, the structure of which includes: a frame (1), a magnetic ring feeding mechanism (2), a cross clamp table mechanism (3), a wire hooking mechanism (4), a material transfer module mechanism (5), a lead trimming mechanism (6), a semi-finished product cam frame mechanism (7), a wire dialing mechanism (8), a tin dipping cam frame mechanism (9), a soldering furnace mechanism (10), and a detection table mechanism (11).

[0021] In this embodiment, as Figure 1 shown, the frame is made of square tubes. There is an electric control box below the frame and a control box above the frame. The upper plane of the frame is the installation platform for all other functional structures.

[0022] In this embodiment, as Figure 2 shown, the magnetic ring feeding mechanism has a vertical plate 2-1, a cylinder 2-2, a pushing block 2-3, a sensor 2-4, a sensor 2-5, and a feeding vibrating disk 2-6. The vertical plate 2-1 and the vibrating disk 2-6 are installed on the frame. When the magnetic ring reaches the pushing block 2-3 along the material channel of the vibrating disk 2-6, the sensor 2-4 gets a signal, and the cylinder 2-2 pushes the pushing plate 2-3 forward. When the sensor 2-5 gets a signal, the cross clamp 3-4 of the cross clamp table mechanism clamps or releases, and the clamping of the magnetic ring is completed.

[0023] In this embodiment, as Figure 3As shown in the figure, the cross pliers table mechanism includes a base 3-1, a stepping motor 3-2, a cam divider 3-3, a cross clamp 3-4, a cylinder 3-5, a wire feeding pair 3-6, a wire inlet bridge 3-7, and a copper wire straightening clamp 3-8. The base is fixed on the frame. For every full rotation of the stepping motor 3-2, the cam divider 3-3 rotates 90 degrees. The wire inlet bridge 3-7 and the cross clamp 3-4 are arranged at a 45-degree angle. The cylinder 3-5 is directly above the cross clamp 3-4 and controls the cross clamp 3-4 to pick up the material. The wire feeding pair 3-6 is fixed on the wire inlet bridge 3-7. The wire feeding pair sends the copper wire to the magnetic ring and cuts it after a certain length. After the magnetic ring winding is completed, the copper wire straightening clamp 3-8 cooperates with the material transporting module mechanism to straighten the copper wire head.

[0024] In this embodiment, as Figure 4 shown, the wire hooking mechanism includes a base plate 4-1, a rotating frame 4-2, a rotating frame motor 4-3, a Z-direction belt 4-4, a vertical hooking needle 4-5, a z-direction motor 4-6, a cam pair 4-7, a cylinder 4-8, a stepping motor 4-9, a horizontal hooking needle 4-10, and a bearing 4-11. The base plate 4-1 is fixed on the frame as the support plate of the entire mechanism. The rotating frame 4-2 bears the core components of the wire hooking mechanism. The bearing 4-11 is flexibly connected between the two. The rotating motor 4-3 drives the rotating frame 4-2 to make a 360-degree rotational movement. The Z-direction motor 4-6 is at the bottom of the rotating frame 4-2. The Z-direction belt 4-4 is connected to the Z-direction motor 4-6. The vertical hooking needle 4-5 is fixed at an appropriate point on the Z-direction belt 4-4 and makes a vertical reciprocating movement following the Z-direction belt 4-4. The cam pair 4-7 is at the top of the rotating frame. The stepping motor 4-9 is connected to the cam pair 4-7 and can drive the cam pair 4-7 to make a lying U-shaped movement. The horizontal hooking needle 4-10 is at the top of the cam pair 4-7. The cylinder 4-8 is behind the horizontal hooking needle 4-10 and drives the horizontal hooking needle 4-10 to make a horizontal fan-shaped movement.

[0025] In this embodiment, as Figure 5 shown, the material transfer module mechanism includes a support frame 5-1, a guide rail pair 5-2, a motor 5-3, a Z-direction cylinder 5-4, a rotating cylinder 5-5, and a clamping cylinder 5-6. The support frame 5-1 is fixed on the frame. The guide rail pair 5-2 is installed on the upper part of the support frame 5-1. The Z-direction cylinder 5-4 is installed on the slider of the guide rail pair 5-2. The rotating cylinder 5-5 is fixed on the push plate of the Z-direction cylinder 5-5. The output end of the rotating cylinder 5-5 is equipped with a finger cylinder 5-6. After receiving the instruction, the finger cylinder 5-6 picks up the inductance semi-finished product with the wire wound from the cross pliers table 3 and places it at the copper wire straightening clamp 3-8. The copper wire clamp 3-8 changes from an open state to a clamped state. The motor 5-3 drives the Z-direction cylinder 5-4 to translate, that is, to shape the copper wire head, and then moves forward to an appropriate position. The Z-direction cylinder 5-4 pushes down, and the rotating cylinder 5-5 rotates 90 degrees to send the inductance with the copper wire wound into the lead clipper.

[0026] In this embodiment, as Figure 6 shown, the lead clipper has 4 columns 6-1, a panel 6-2, 2 small fixing plates 6-3, a connecting plate 6-4, a wire rubbing plate 6-5, 2 double-acting cylinders 6-6, 2 cutting knives 6-7, 2 wire pulling plates 6-8, 2 double-acting cylinders 6-9, 2 wire pushing plates 6-10, a limiting plate 6-11, a cross 6-12, 2 wire pressing blocks 6-13, and an auxiliary module 6-14. The 4 columns 6-1 are installed on the frame, the panel 6-2 is fixed on the 4 columns, the 2 small fixing plates 6-3 are distributed on both sides in the width direction of the central square hole of the panel 6-2, the connecting plate 6-4 is fixed on the 2 small fixing plates, the connecting plate 6-4 has a central square hole, the wire rubbing plate 6-5 is at the center of the square hole, the double-acting cylinders 6-6 are fixed under the panel. When the cutting knife 6-7 is pushed forward, the wire pulling plate 6-8 is even more forward. When it touches the wire rubbing plate 6-5, it is forced downward, playing a role in straightening the copper wire. The cutting knife 6-7 continues to complete the wire cutting. At the same time, the double-acting cylinders 6-9, the wire pushing plates 6-11, and the wire pressing blocks 6-13 move towards the central position, playing a role in positioning the wire ends. The auxiliary module 6-14 helps the wire pulling plate to reset and recycle the waste wire.

[0027] In this embodiment, as Figure 7 shown, the semi-finished product cam frame mechanism has a material taking seat 7-1, a stepping motor 7-2, a cam plate 7-3, a cross guide pair 7-4, a left sensor 7-5, a right sensor 7-6, a thin cylinder 7-7, a finger cylinder 7-8, a cylinder shear 7-9, a three-axis cylinder 7-10, and a limiting frame 7-11. The material taking seat is fixed on the frame. The stepping motor 7-2 rotates, the cam plate 7-3 approaches the left sensor 7-5, and the finger cylinder 7-8 clamps the inductor from the lead clipper. The cam plate rotates 90 degrees, the thin cylinder ejects, and the four wire ends of the inductor are placed at the cylinder shear 7-9 to break the insulation layer for convenient tin dipping. The three-axis cylinder 7-10 and the limiting frame 7-11 play an auxiliary role. The cam plate continues to rotate 90 degrees to the right sensor 7-6, and the finger cylinder 7-8 releases, and the inductor is placed into the lead bender.

[0028] In this embodiment, as Figure 8As shown in the figure, the wire-pushing mechanism includes a wire-pushing base 8-1, a three-axis cylinder 8-2, a pusher rod 8-3, a vibrating bowl 8-4, a three-axis cylinder 8-5, a finger cylinder 8-6, a wire pusher 8-7, a lifting frame 8-8, a cross-shaped swallowtail slide rail 8-9, and a wire winder 8-10. The wire-pushing base 8-1 is fixed on the frame. There is a three-axis cylinder 8-2 on one side above the wire-pushing base. There is a pusher rod 8-3 on the cylinder push plate of the three-axis cylinder 8-2. There is a square opening at the front end of the pusher rod 8-3, and the opening is directly opposite to the discharge port of the vibrating bowl 8-4. The three-axis cylinder 8-5 is on the opposite side of the three-axis cylinder 8-2 above the wire-pushing base 8-1. There is a finger cylinder 8-6 on the push plate of the three-axis cylinder 8-5, which can clamp the processed product. There are 2 sets of wire pushers 8-7 symmetrically installed on the flat plate of the wire-pushing base 8-1. The lifting frame 8-8 is below the wire-pushing base and can move up and down. There is a cross-shaped swallowtail slide rail 8-9 on the lifting frame 8-8, which can move in both the X and Y directions. There is a wire winder 8-10 on the cross-shaped swallowtail slide rail to wind the wire pushed by the wire pusher smoothly.

[0029] In this embodiment, as Figure 9 shown, the tin-foaming cam frame mechanism includes a T-shaped frame 9-1, a stepping motor 9-2, a cam plate 9-3, a cross-shaped guide rail pair 9-4, a left sensor 9-5, a right sensor 9-6, a connecting plate 9-7, a thin cylinder 9-8, a finger cylinder 9-9, a sheet metal 9-10, and a three-axis cylinder 9-11, a small sheet metal 9-12. The material-taking base is fixed on the frame. The stepping motor 9-2 rotates, and the cam plate 9-3 approaches the left sensor 9-5. The finger cylinder 9-8 clamps the inductor from the wire pusher. The cam plate rotates 180 degrees, and the right sensor gets a signal. The thin cylinder 9-8 ejects, and the four feet of the inductor seat sink into the flux and tin liquid. After a certain period of time, the thin cylinder 9-8 retracts, the three-axis cylinder 9-11 ejects, and the finger cylinder 9-9 releases, completing the periodic movement.

[0030] In this embodiment, as Figure 10 shown, the tin furnace mechanism includes a sheet metal 10-1, 4 bushings 10-2, a silica gel plate 10-3, a fiberglass board 10-4, a tin furnace 10-5, a heating rod 10-6, and a thermocouple 10-7. The sheet metal 10-1 is installed on the frame and has bushings 10-2. There is a heat-insulating layer of silica gel plate 10-3 and fiberglass board 10-4 above the bushings. There is a tin furnace 10-5 on the fiberglass board. There are holes on the side of the tin furnace, and the heating rod 10-6 and the thermocouple 10-7 are respectively installed.

[0031] In this embodiment, as Figure 11As shown, the test bench mechanism includes a base 11-1, two cylinders 11-2, a spring rod 11-3, a cylinder 11-4, two shafts 11-5, two blanking chutes 11-6, and two linear bearings 11-7. The base 11-1 is installed on the frame. The two cylinders 11-2 are symmetrically installed at the top of the base 11-1. There are two spring rods 11-3 installed on the cylinder top plates, which are used to test whether the inductor is qualified. The linear bearings 11-7 are located at the middle height position of the base. The shafts 11-5 slide on the linear bearings. Blanking chutes 11-6 are installed at both ends of the shafts. Qualified products fall into one side of the chute, and conversely, the cylinder 11-4 ejects, and unqualified products fall on the opposite side. All instruments related to the test are placed in the electrical box.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The present invention provides an automatic forming machine for a toroidal common mode inductor, characterized in that: Its structure includes: a frame, a magnetic ring feeding mechanism, a cross clamp mechanism, a wire hook mechanism, a material transfer module mechanism, a foot cutter, a semi-finished product cam frame mechanism, a wire puller mechanism, a tinning cam frame mechanism, two tin furnace mechanisms, and a testing table mechanism. The invention integrates the multiple functions of inductor winding, seat installation, tinning, and testing.

2. The automatic forming machine for annular common mode inductors according to claim 1, characterized in that: The magnetic ring feeding mechanism comprises a vertical plate 2-1, a cylinder 2-2, a pushing block 2-3, a sensor 2-4, a sensor 2-5, and a feeding vibration plate 2-6. The vertical plate 2-1 and the vibration plate 2-6 are installed on a frame. When the magnetic ring reaches the pushing block 2-3 along the material channel of the vibration plate 2-6, the sensor 2-4 receives a signal, and the cylinder 2-2 pushes the pushing plate 2-3 forward. When the sensor 2-5 receives a signal, the cross clamp 3-4 of the cross clamp mechanism is clamped or released, and the clamping of the magnetic ring is completed.

3. The automatic forming machine for annular common mode inductors according to claim 1, characterized in that: The cross clamp mechanism comprises a seat 3-1, a stepper motor 3-2, a cam divider 3-3, a cross clamp 3-4, a cylinder 3-5, a wire feeding pair 3-6, a wire feed bridge 3-7, and a copper wire straightening clamp 3-8. The seat is fixed on the frame. For each rotation of the stepper motor 3-2, the cam divider 3-3 rotates 90 degrees. The wire feed bridge 3-7 and the cross clamp 3-4 are placed at an angle of 45 degrees. The cylinder 3-5 is directly above the cross clamp to control the cross clamp 3-4 to clamp the material. The wire feeding pair 3-6 is fixed on the wire feed bridge. The wire feeding pair feeds the copper wire to the magnetic ring and cuts it after a certain length. After the magnetic ring is wound, the copper wire straightening clamp 3-8 cooperates with the material transport module mechanism to straighten the copper wire end.

4. The automatic forming machine for annular common mode inductors according to claim 1, characterized in that: The thread hook mechanism comprises a seat plate 4-1, a rotating frame 4-2, a rotating frame motor 4-3, a Z-direction belt 4-4, a vertical hook needle 4-5, a Z-direction motor 4-6, a cam pair 4-7, a cylinder 4-8, a stepper motor 4-9, a horizontal hook needle 4-10, and a bearing 4-11. The seat plate 4-1 is fixed on the frame as a support plate of the entire mechanism, the rotating frame 4-2 carries the core component of the thread hook, and the bearing 4-11 is softly connected between the two. The rotating motor 4-3 drives the rotating frame 4-2 to rotate 360 ​​degrees. The Z-direction motor 4-6 is at the bottom of the rotating frame 4-2, the Z-axis belt 4-4 is connected to the Z-axis motor 4-6, the vertical hook needle 4-5 is fixed at a suitable point of the Z-axis belt 4-4, and follows the Z-axis belt 4-4 to make vertical reciprocating motion, the cam pair 4-7 is at the top of the rotating frame, the stepper motor 4-9 is connected to the cam pair 4-7, and can drive the cam pair 4-7 to make a horizontal U-shaped motion, the horizontal hook needle 4-10 is at the top of the cam pair 4-7, and the cylinder 4-8 is at the rear of the horizontal hook needle 4-10, driving the horizontal hook needle 4-10 to make a horizontal fan-shaped movement.

5. The automatic forming machine for annular common mode inductors according to claim 1, characterized in that: The material transfer module mechanism comprises a support frame 5-1, a guide pair 5-2, a motor 5-3, a Z-direction cylinder 5-4, a rotating cylinder 5-5, and a clamping cylinder 5-6. The support frame 5-1 is fixed on the frame, the guide pair 5-2 is mounted on the upper part of the support frame 5-1, the Z-direction cylinder 5-4 is mounted on the slider of the guide pair 5-2, the rotating cylinder 5-5 is fixed on the push plate of the Z-direction cylinder 5-5, and the output end of the rotating cylinder 5-5 is equipped with a finger cylinder 5-6. After receiving the instruction, the finger cylinder 5-6 clamps the wound inductor semi-finished product from the cross clamp 3 and puts it into the copper wire straightening clamp 3-8, and the copper wire 3-8 changes from opening to clamping. The motor 5-3 drives the Z-direction cylinder 5-4 to translate, that is, to shape the copper wire head, and then moves forward to a suitable position, the Z-direction cylinder 5-4 is pushed down, and the rotating cylinder 5-5 rotates 90 degrees to send the wound copper wire inductor into the foot shear.

6. The automatic forming machine for annular common mode inductors according to claim 1, characterized in that: The foot shearing machine has 4 columns 6-1, a panel 6-2, 2 small fixed plates 6-3, a connecting plate 6-4, a thread rubbing plate 6-5, 2 double-axis cylinders 6-6, 2 cutters 6-7, 2 wire pulling plates 6-8, 2 double-axis cylinders 6-9, 2 wire pushing plates 6-10, a limit plate 6-11, a cross 6-12, 2 wire pressing blocks 6-13, and an auxiliary module 6-14. The 4 columns 6-1 are installed on the frame, the panel 6-2 is fixed on the 4 columns, and the 2 small fixed plates 6-3 are distributed on both sides of the width direction of the central square hole of the panel 6-2. , the connecting plate 6-4 is fixed on two small fixed plates, the connecting plate 6-4 has a central square hole, the wire rolling plate 6-5 is in the center of the square hole, the double-axis cylinder 6-6 is fixed under the panel, and when the cutter 6-7 is pushed forward, the wire pulling plate 6-8 is closer to the front, and when it touches the wire rolling plate 6-5, it is forced downward, which plays the role of straightening the copper wire, and the cutter 6-7 continues to complete the shearing line. At the same time, the double-axis cylinder 6-9, the wire pushing plate 6-11, and the wire pressing block 6-13 move to the center position to position the wire head, and the auxiliary module 6-14 helps the wire pulling plate to reset and recycle the waste wire.

7. The automatic forming machine for annular common mode inductors according to claim 1, characterized in that: The semi-finished cam frame mechanism comprises a T-frame 7-1, a stepper motor 7-2, a cam plate 7-3, a cross guide pair 7-4, a left sensor 7-5, a right sensor 7-6, a thin cylinder 7-7, a finger cylinder 7-8, a cylinder shear 7-9, a three-axis cylinder 7-10, and a limit frame 7-11. The material picking seat is fixed on the frame, the stepper motor 7-2 rotates, the cam plate 7-3 approaches the left sensor 7-5, the finger cylinder 7-8 clamps the inductor from the foot shear, the cam plate rotates 90 degrees, the thin cylinder is pushed out, and the four wire ends of the inductor are placed in the cylinder shear 7-9 to destroy the insulating layer and facilitate tinning. The three-axis cylinder 7-10 and the limit frame 7-11 serve as auxiliary functions, the cam plate continues to rotate 90 degrees to the right sensor 7-6, the finger cylinder 7-8 is released, and the inductor is placed in the foot pusher.

8. The automatic forming machine for annular common mode inductors according to claim 1, characterized in that: The pin-pushing mechanism comprises a wire-pushing seat 8-1, a three-axis cylinder 8-2, a push rod 8-3, a vibration plate 8-4, a three-axis cylinder 8-5, a finger cylinder 8-6, a wire-pushing device 8-7, a lifting frame 8-8, a cross swallow tail slide rail 8-9, and a wire winder 8-10. The wire-pushing seat 8-1 is fixed on the frame, and a three-axis cylinder 8-2 is arranged on one side of the wire-pushing seat. A push rod 8-3 is arranged on the cylinder push plate of the three-axis cylinder 8-2. A square notch is arranged at the front end of the push rod 8-3, and the notch is directly opposite to the vibration plate 8 -4 is the discharge port, the three-axis cylinder 8-5 is on the opposite side of the wire dialing seat 8-2, the push plate of the three-axis cylinder 8-5 is provided with a finger cylinder 8-6, which can clamp the processed products, and on the flat plate of the wire dialing seat 8-1, there are 2 sets of wire dialers 8-7, which are symmetrically installed, and the lifting frame 8-8 is below the wire dialing seat and can move up and down. There is a cross swallow tail slide rail 8-9 on the lifting frame 8-8, which can move in X and Y bidirectional directions, and there is a wire winder 8-10 on the cross swallow tail slide rail to wind the wire dialed by the wire dialer.

9. The automatic forming machine for annular common mode inductors according to claim 1, characterized in that: The tinning cam frame mechanism comprises a T-frame 9-1, a stepper motor 9-2, a cam plate 9-3, a cross guide pair 9-4, a left sensor 9-5, a right sensor 9-6, a connecting plate 9-7, a thin cylinder 9-8, a finger cylinder 9-9, a sheet metal 9-10, a three-axis cylinder 9-11, and a small sheet metal 9-12. The material picking seat is fixed on the frame, the stepper motor 9-2 rotates, the cam plate 9-3 approaches the left sensor 9-5, the finger cylinder 9-8 clamps the inductor from the foot pusher, the cam plate rotates 180 degrees, the right sensor receives a signal, the thin cylinder 9-8 is ejected, and the four feet of the inductor seat are immersed in the flux and the tin liquid. After a certain period of time, the thin cylinder 9-8 is retracted, the three-axis cylinder 9-11 is ejected, and the finger cylinder 9-9 is released, and the cycle action is completed.

10. The automatic forming machine for annular common mode inductors according to claim 1, characterized in that: The tin furnace mechanism comprises sheet metal 10-1, four gaskets 10-2, a silicone plate 10-3, a glass fiber board 10-4, a tin furnace 10-5, a heating rod 10-6, and a thermocouple 10-7. The sheet metal 10-1 is mounted on a frame and has a gasket 10-2 on it. Above the gasket are a heat-insulating silicone plate 10-3 and a glass fiber board 10-4. A tin furnace 10-5 is mounted on the glass fiber board. There are holes on the side of the tin furnace, on which heating rods 10-6 and thermocouples 10-7 are installed respectively. This mechanism has two sets, one for soldering flux and the other for molten tin.

11. The automatic forming machine for annular common mode inductors according to claim 1, characterized in that: The test bench mechanism comprises a seat 11-1, two cylinders 11-2, a spring rod 11-3, a cylinder 11-4, two shafts 11-5, two blanking chutes 11-6, and two linear bearings 11-7. The seat 11-1 is mounted on a frame. The two cylinders 11-2 have tops on the seat 11-1 and are symmetrically mounted. Two spring rods 11-3 are mounted on the top plates of the cylinders for testing whether the inductance is qualified or not. The linear bearings 11-7 are at the middle height position of the seat. The shaft 11-5 slides on the linear bearings. Blanking chutes 11-6 are mounted at both ends of the shaft. Qualified products fall into the groove on one side, while the cylinder 11-4 ejects them and unqualified ones fall on the opposite side.

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