Inductance adjusting mechanism

Abstract

The present application relates to the technical field of inductance production equipment, and discloses an inductance adjusting mechanism, which comprises an inductance fixture containing inductance, a fixture positioning part for locking and fixing the inductance fixture, and a fixture adjusting part for transmission connection with the inductance fixture to adjust the inductance of the inductance. The fixture positioning part comprises a first base, and the first base is provided with a locking assembly and an electrical connection assembly. The fixture adjusting part comprises a second base, and the second base is provided with a first movable seat and a first servo motor. The first movable seat is provided with a plurality of groups of screw sleeves for transmission connection with the inductance fixture and a second servo motor for driving the screw sleeves to rotate. The inductance adjusting mechanism has the advantages of simple structure, simple operation, high automation degree, good convenience in use, and can effectively improve the production efficiency and product quality.

Description

Technical Field

[0001] This invention relates to the field of inductor production equipment technology, and more specifically to an inductance adjustment mechanism. Background Technology

[0002] An inductor is a component that converts electrical energy into magnetic energy and stores it. The structure of an inductor is similar to a transformer, but it has only one winding. A toroidal inductor is made by winding a coil around a magnetic toroid. A single wire wound from beginning to end is a differential-mode inductor, while two wires wound in parallel or separately on opposite sides are common-mode inductors. In the inductor manufacturing process, adjusting the inductance by changing the gap between the magnetic cores is one of the most common and core adjustment methods. However, current inductance adjustment mechanisms are complex in structure and cumbersome in operation, leading to low production efficiency and poor product consistency. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology and provide an inductance adjustment mechanism that is simple in structure, easy to operate, highly automated, convenient to use, and can effectively improve production efficiency and product quality.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] An inductance adjustment mechanism includes an inductor fixture internally housing an inductor, a fixture positioning part for locking and fixing the inductor fixture, and a fixture adjustment part for being drivenly connected to the inductor fixture to adjust the inductance of the inductor.

[0006] The fixture positioning part includes a first base, on which a locking component for clamping and fixing the inductor fixture and an electrical connection component for electrically connecting with the inductor to obtain inductance change data in real time are provided.

[0007] The fixture adjustment unit includes a second base, on which a first movable seat and a first servo motor for driving the first movable seat to reciprocate are provided. The first movable seat is provided with a plurality of sets of screw sleeves for transmission connection with the inductive fixture and a second servo motor for driving the screw sleeves to rotate.

[0008] As a further improvement to the above technical solution:

[0009] The inductor fixture includes a top cover and a bottom cover. The top cover includes a frame structure formed by an upper side plate, a front side plate, a left side plate, a right side plate, and a driven pressure plate. One end of the driven pressure plate is movably connected to the left side plate via a first guide slide rod, and the other end of the driven pressure plate is movably connected to the right side plate via the first guide slide rod.

[0010] An active pressure plate is provided on the inner side of the front side plate. The active pressure plate is movably connected to the front side plate through a second guide slide rod. An adjusting screw is threadedly connected to the front side plate. The screw sleeve is fitted onto the head of the adjusting screw. The shank of the adjusting screw abuts against the active pressure plate. The active pressure plate and the driven pressure plate are brought closer or further apart by a symmetrical slider-crank mechanism.

[0011] The symmetrical slider-crank mechanism is configured in two groups. One group of the symmetrical slider-crank mechanism is disposed on the left side plate, and the other group of the symmetrical slider-crank mechanism is disposed on the right side plate. The symmetrical slider-crank mechanism includes a turntable, a driving connecting rod, and a driven connecting rod. The turntable is rotatably disposed on the left side plate or the right side plate. One end of the turntable is provided with a driving switching position, and the other end of the turntable is provided with a driven switching position.

[0012] One end of the active connecting rod is connected to the active pressure plate, and the other end of the active connecting rod is connected to the active transition position. One end of the driven connecting rod is connected to the driven transition position, and the other end of the driven connecting rod is connected to the driven pressure plate.

[0013] A return spring is fitted on the second guide slide rod. One end of the return spring abuts against the outer side of the front side plate, and the other end of the return spring abuts against the head of the second guide slide rod.

[0014] The bottom cover has snap-fit ​​plates on its left and right sides for snap-fit ​​connection with the left side plate or the right side plate, and the bottom cover has terminal holes for the coil terminals of the inductor to pass through.

[0015] The left side plate and the right side plate are respectively provided with positioning holes. The number of locking components is set to two sets. One set of locking components is used to clamp and fix the left side plate, and the other set of locking components is used to clamp and fix the right side plate. The locking components include a first locking block and a second locking block for inserting and connecting with the positioning holes, and a clamping cylinder for driving the first locking block and the second locking block to move closer or further away from each other.

[0016] The electrical connection assembly includes a test terminal board for electrical connection with the coil terminals of the inductor and a telescopic cylinder for driving the test terminal board to move up and down. The test terminal board is electrically connected to the testing machine to acquire real-time data on the inductance change of the inductor.

[0017] A torque detection device for real-time detection of torque value changes is also provided between the output shaft of the second servo motor and the screw sleeve.

[0018] Compared with the prior art, the advantages of the present invention are as follows:

[0019] The inductance adjustment mechanism of the present invention includes a fixture positioning part and a fixture adjustment part. The inductor is housed in the inductance fixture as the workpiece to be adjusted. The fixture positioning part includes a first base, a locking component, and an electrical connection component. The locking component locks the inductance fixture onto the first base, and the electrical connection component is electrically connected to the inductor to obtain the inductance change in real time. The fixture adjustment part includes a screw sleeve and a second servo motor. The screw sleeve is driven to rotate by the second servo motor, which can pre-tighten the inductor in the inductance fixture, thereby changing the gap of the magnetic core and realizing the adjustment of the inductance. It has the advantages of simple structure, easy operation, high degree of automation, and good ease of use, and can effectively improve production efficiency and product quality. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the inductance adjustment mechanism.

[0021] Figure 2 This is a schematic diagram of the inductance adjustment mechanism from another angle.

[0022] Figure 3 This is a structural schematic diagram of the inductor fixture and the fixture positioning part.

[0023] Figure 4 This is a structural schematic diagram of the inductor fixture and fixture positioning part viewed from below.

[0024] Figure 5 This is a schematic diagram of the inductor fixture.

[0025] Figure 6 This is a schematic diagram of the disassembled structure of the inductor fixture.

[0026] Figure 7 This is a schematic diagram of the top cover structure.

[0027] Figure 8 This is a bottom view of the top cover.

[0028] Figure 9 This is a schematic diagram of a symmetrical slider-crank mechanism.

[0029] Legend:

[0030] 100. Inductor; 200. Inductor fixture; 300. Fixture positioning part; 400. Fixture adjustment part;

[0031] 1. First base; 2. Locking assembly; 201. First locking block; 202. Second locking block; 203. Clamping cylinder; 3. Electrical connection assembly; 301. Test terminal board; 302. Telescopic cylinder; 4. Second base; 5. First movable seat; 6. First servo motor; 7. Screw sleeve; 8. Second servo motor; 9. Top cover; 901. Upper side plate; 902. Front side plate; 903. Left side plate; 904. Right side plate. Side plate; 905, driven pressure plate; 906, driving pressure plate; 907, symmetrical slider-crank mechanism; 10, bottom cover; 11, first guide slide rod; 12, second guide slide rod; 13, adjusting screw; 14, turntable; 1401, driving adapter position; 1402, driven adapter position; 15, driving connecting rod; 16, driven connecting rod; 17, return spring; 18, snap plate; 19, terminal hole; 20, positioning hole. Detailed Implementation

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] like Figures 1 to 9 As shown, the inductance adjustment mechanism of this embodiment includes an inductor fixture 200 that internally houses an inductor 100, a fixture positioning part 300 for locking and fixing the inductor fixture 200, and a fixture adjustment part 400 for being driven to the inductor fixture 200 to adjust the inductance of the inductor 100. The fixture positioning part 300 includes a first base 1, on which a locking component 2 for clamping and fixing the inductor fixture 200 and an electrical connection component 3 for being electrically connected to the inductor 100 to obtain inductance change data in real time are provided. The fixture adjustment part 400 includes a second base 4, on which a first movable seat 5 and a first servo motor 6 for driving the first movable seat 5 to reciprocate are provided. The first movable seat 5 is provided with a plurality of sets of screw sleeves 7 for being driven to the inductor fixture 200 and second servo motors 8 for driving the screw sleeves 7 to rotate. The inductance adjustment mechanism includes a fixture positioning part 300 and a fixture adjustment part 400. The inductor 100 is housed in the inductor fixture 200 as the workpiece to be adjusted. The fixture positioning part 300 includes a first base 1, a locking component 2, and an electrical connection component 3. The locking component 2 locks the inductor fixture 200 onto the first base 1, and the electrical connection component 3 is electrically connected to the inductor 100 to obtain the inductance change in real time. The fixture adjustment part 400 includes a screw sleeve 7 and a second servo motor 8. The screw sleeve 7 is connected to the inductor fixture 200 for transmission. The second servo motor 8 drives the screw sleeve 7 to rotate, which can pre-tighten the inductor 100 in the inductor fixture 200, thereby changing the gap of the magnetic core and realizing the adjustment of the inductance. It has the advantages of simple structure, easy operation, high degree of automation, and good usability, and can effectively improve production efficiency and product quality.

[0034] Preferably, the inductor fixture 200 includes a top cover 9 and a bottom cover 10. The top cover 9 includes a frame structure formed by an upper side plate 901, a front side plate 902, a left side plate 903, a right side plate 904, and a driven pressure plate 905. One end of the driven pressure plate 905 is movably connected to the left side plate 903 via a first guide slide rod 11, and the other end of the driven pressure plate 905 is movably connected to the right side plate 904 via the first guide slide rod 11. An active pressure plate 906 is provided on the inner side of the front side plate 902. The active pressure plate 906 is movably connected to the front side plate 902 via a second guide slide rod 12. An adjusting screw 13 is threaded onto the front side plate 902. A screw sleeve 7 is fitted onto the head of the adjusting screw 13. The rod of the adjusting screw 13 abuts against the active pressure plate 906. The active pressure plate 906 and the driven pressure plate 905 are brought closer or further apart by a symmetrical slider-crank mechanism 907. In this embodiment, a set of first guide slide rods 11 pass through the driven pressure plate 905 and are fixedly mounted on the left side plate 903, and another set of first guide slide rods 11 pass through the driven pressure plate 905 and are fixedly mounted on the right side plate 904, so that the driven pressure plate 905 can reciprocate horizontally within the range between the head of the first guide slide rod 11 and the left side plate 903 and the right side plate 904; two sets of second guide slide rods 12 pass through the front side plate 902 and are fixedly mounted on the active pressure plate 906, so that the active pressure plate 906 can reciprocate horizontally within the range between the head of the first guide slide rod 11 and the left side plate 903 and the right side plate 904; The sliding rod 12 moves horizontally back and forth within the range between the head of the sliding rod 12 and the front side plate 902; the first servo motor 6 drives the first movable seat 5 to move, so that the screw sleeve 7 is fitted onto the head of the adjusting screw 13. When the adjusting screw 13 is screwed inward on the front side plate 902, the rod of the adjusting screw 13 abuts against the active pressure plate 906 and pushes the active pressure plate 906 inward. The active pressure plate 906 drives the driven pressure plate 905 to move closer to each other through the symmetrical slider crank mechanism 907, thereby applying a preload force to the inductor 100.

[0035] Preferably, the symmetrical slider-crank mechanism 907 is configured in two sets: one set is disposed on the left side plate 903, and the other set is disposed on the right side plate 904. Each symmetrical slider-crank mechanism 907 includes a turntable 14, a driving connecting rod 15, and a driven connecting rod 16. The turntable 14 is rotatably disposed on either the left side plate 903 or the right side plate 904. One end of the turntable 14 has a driving transition position 1401, and the other end has a driven transition position 1402. One end of the driving connecting rod 15 is connected to the driving pressure plate 906, and the other end is connected to the driving transition position 1401. One end of the driven connecting rod 16 is connected to the driven transition position 1402, and the other end is connected to the driven pressure plate 905. In this embodiment, as... Figure 9As shown, when the adjusting screw 13 is screwed inward, the active pressure plate 906 is pushed inward. The active pressure plate 906 and the active connecting rod 15 act as active components, driving the turntable 14 to rotate counterclockwise. In turn, the turntable 14 drives the driven connecting rod 16 and the driven pressure plate 905 to push inward, converting the rotational motion of the turntable 14 into a linear motion in which the active pressure plate 906 and the driven pressure plate 905 approach each other.

[0036] Preferably, a return spring 17 is sleeved on the second guide slide rod 12. One end of the return spring 17 abuts against the outer side of the front side plate 902, and the other end of the return spring 17 abuts against the head of the second guide slide rod 12. In this embodiment, a return spring 17 is sleeved on the second guide slide rod 12. One end of the return spring 17 abuts against the outer side of the front side plate 902, and the other end abuts against the head of the second guide slide rod 12. When the adjusting screw 13 is screwed inward, the adjusting screw 13 will drive the active pressure plate 906 to move inward. At this time, the head of the second guide slide rod 12 compresses the return spring 17. When the adjusting screw 13 is screwed outward, the active pressure plate 906 loses the support force of the adjusting screw 13. At this time, the return spring 17, under the action of elastic restoring force, drives the second guide slide rod 12 and the active pressure plate 906 to move outward, so that the active pressure plate 906 and the adjusting screw 13 always remain in contact.

[0037] Preferably, the bottom cover 10 has snap-fit ​​plates 18 on its left and right sides for snap-fit ​​connection with the left side plate 903 or the right side plate 904, and the bottom cover 10 has terminal holes 19 for the coil terminals of the inductor 100 to pass through. In this embodiment, the left side plate 903 and the right side plate 904 are respectively provided with snap-fit ​​grooves, and the top cover 9 is placed on the bottom cover 10. By snapping the snap-fit ​​plates 18 into the snap-fit ​​grooves, the inductor 100 is locked in the inductor fixture 200, which provides good connection stability and helps to improve product quality. The bottom cover 10 has multiple sets of terminal holes 19 in the middle, and the coil terminals of the inductor 100 can be passed through the terminal holes 19 one by one, which facilitates the electrical connection assembly 3 to be electrically connected to the coil terminals through the terminal holes 19.

[0038] Preferably, the left side plate 903 and the right side plate 904 are respectively provided with positioning holes 20, and the number of locking components 2 is set to two sets. One set of locking components 2 is used to clamp and fix the left side plate 903, and the other set of locking components 2 is used to clamp and fix the right side plate 904. The locking components 2 include a first locking block 201 and a second locking block 202 for insertion and connection with the positioning holes 20, and a clamping cylinder 203 for driving the first locking block 201 and the second locking block 202 to move closer or further away from each other. In this embodiment, positioning holes 20 are provided on both the front and rear sides of the left side plate 903 and the right side plate 904. The first locking block 201 and the second locking block 202 are respectively provided with insertion rods. When the clamping cylinder 203 drives the first locking block 201 and the second locking block 202 to approach each other, the insertion rod on the second locking block 202 is inserted into the front positioning hole 20, and the insertion rod on the first locking block 201 is inserted into the rear positioning hole 20, thereby locking the inductor fixture 200 on the first base 1, resulting in good connection stability.

[0039] Preferably, the electrical connection assembly 3 includes a test terminal plate 301 for electrical connection with the coil terminals of the inductor 100 and a telescopic cylinder 302 for driving the test terminal plate 301 to move up and down. The test terminal plate 301 is electrically connected to the testing machine to acquire the inductance change data of the inductor 100 in real time. In this embodiment, the test terminal plate 301 is provided with multiple sets of test terminals. The telescopic cylinder 302 drives the test terminal plate 301 to move up, so that the test terminals can be inserted from bottom to top into the terminal holes 19 of the bottom cover 10, thereby achieving electrical connection between the test terminals and the coil terminals of the inductor 100, and thus the testing machine can acquire the inductance data of the inductor 100 in real time.

[0040] Preferably, a torque detection device for real-time detection of torque value changes is also provided between the output shaft of the second servo motor 8 and the screw sleeve 7. In this embodiment, the preload force applied to the inductor 100 by the active pressure plate 906 and the driven pressure plate 905 can be quantified as the torque value of the motor output shaft. The torque detection device is provided between the output shaft of the second servo motor 8 and the screw sleeve 7. The torque detection device can reflect the torque value applied by the second servo motor 8 in real time, that is, reflect the preload force applied to the inductor 100 by the active pressure plate 906 and the driven pressure plate 905.

[0041] In practical applications, by changing the torque applied by the second servo motor 8, that is, changing the preload applied by the active pressure plate 906 and the driven pressure plate 905 to the inductor 100, the gap of the magnetic core can be changed to adjust the inductance of the inductor 100. Specifically, in this embodiment, the standard range of the preload applied by the active pressure plate 906 and the driven pressure plate 905 to the inductor 100 is quantified as the torque applied by the second servo motor 8 being in the range of two to five kilograms. Before performing the inductance adjustment process, the inductor 100 needs to be placed in the inductor fixture 200. At this time, the active pressure plate 906 and the driven pressure plate 905 have already applied preload to the inductor 100. After applying a preload, the inductor fixture 200 is locked onto the fixture positioning part 300. At this time, the test terminal plate 301 is electrically connected to the coil terminal of the inductor 100. The testing machine acquires the inductance data of the inductor 100 in real time. When the inductance of the inductor 100 in the inductor fixture 200 meets the production standard, it is judged as qualified, and the inductor fixture 200 and the inductor 100 inside it move together to the next process. When the inductance of the inductor 100 in the inductor fixture 200 does not meet the production standard, the screw sleeve 7 on the fixture adjustment part 400 is placed on the head of the adjustment screw 13, and the second servo motor 8 drives the adjustment screw 13. 3. Rotation causes adjusting screw 13 to push the active pressure plate 906 inward. The active pressure plate 906, through the symmetrical slider-crank mechanism 907, drives the driven pressure plate 905 to also push inward, thereby increasing the preload applied to the inductor 100 by the active pressure plate 906 and the driven pressure plate 905, thus increasing the inductance of the inductor 100. At this time, the torque detection device displays the torque value change of the second servo motor 8 in real time, and the testing machine displays the inductance change of the inductor 100 in real time. If the inductance of the inductor 100 reaches the torque value corresponding to the production standard in the range of two to five kilograms, then the second servo motor 8 stops loading, and adjusting screw 13... The front panel 902 remains in a fixed position. At this time, the preload applied to the inductor 100 by the active pressure plate 906 and the driven pressure plate 905 remains unchanged, which is considered qualified. The inductor fixture 200 and the inductor 100 inside it move together to the next process. If the torque detection device shows that the torque value of the second servo motor 8 exceeds five kilograms, and the inductance of the inductor 100 has not yet reached the production standard, that is, the preload applied to the inductor 100 by the active pressure plate 906 and the driven pressure plate 905 has exceeded the standard, but the inductance has not yet reached the production standard, it is considered unqualified. The inductor fixture 200 and the inductor 100 inside it are marked as defective products.

[0042] The above description is merely a preferred embodiment of the present invention, and the scope of protection of the present invention is not limited to the above embodiments. For those skilled in the art, improvements and modifications obtained without departing from the inventive concept should also be considered within the scope of protection of the present invention.

Claims

1. An inductance adjustment mechanism, characterized in that, It includes an inductor fixture (200) that houses an inductor (100), a fixture positioning part (300) for locking and fixing the inductor fixture (200), and a fixture adjustment part (400) for drivingly connecting with the inductor fixture (200) to adjust the inductance of the inductor (100). The fixture positioning part (300) includes a first base (1), on which a locking component (2) for clamping and fixing the inductor fixture (200) and an electrical connection component (3) for electrically connecting with the inductor (100) to obtain inductance change data in real time are provided. The fixture adjustment unit (400) includes a second base (4), on which a first movable seat (5) and a first servo motor (6) for driving the first movable seat (5) to reciprocate are provided. On the first movable seat (5) are a plurality of sets of screw sleeves (7) for transmission connection with the inductive fixture (200) and a second servo motor (8) for driving the screw sleeves (7) to rotate. The inductor fixture (200) includes a top cover (9) and a bottom cover (10). The top cover (9) includes a frame structure formed by an upper side plate (901), a front side plate (902), a left side plate (903), a right side plate (904), and a driven pressure plate (905). One end of the driven pressure plate (905) is movably connected to the left side plate (903) via a first guide slide rod (11), and the other end of the driven pressure plate (905) is movably connected to the right side plate (904) via the first guide slide rod (11). An active pressure plate (906) is provided on the inner side of the front side plate (902). The active pressure plate (906) is movably connected to the front side plate (902) via a second guide slide rod (12). An adjusting screw (13) is threaded onto the front side plate (902). A screw sleeve (7) is fitted onto the head of the adjusting screw (13). The rod of the adjusting screw (13) abuts against the active pressure plate (906). The active pressure plate (906) and the driven pressure plate (905) move closer or further apart through a symmetrical slider crank mechanism (907).

2. The inductance adjustment mechanism according to claim 1, characterized in that, The symmetrical slider-crank mechanism (907) is configured in two groups. One group of the symmetrical slider-crank mechanism (907) is set on the left side plate (903), and the other group of the symmetrical slider-crank mechanism (907) is set on the right side plate (904). The symmetrical slider-crank mechanism (907) includes a turntable (14), an active connecting rod (15), and a driven connecting rod (16). The turntable (14) is rotatably set on the left side plate (903) or the right side plate (904). One end of the turntable (14) is provided with an active transition position (1401), and the other end of the turntable (14) is provided with a driven transition position (1402). One end of the active link (15) is connected to the active pressure plate (906), and the other end of the active link (15) is connected to the active transition position (1401). One end of the driven link (16) is connected to the driven transition position (1402), and the other end of the driven link (16) is connected to the driven pressure plate (905).

3. The inductance adjustment mechanism according to claim 2, characterized in that, A reset spring (17) is fitted on the second guide slide (12). One end of the reset spring (17) abuts against the outer side of the front side plate (902), and the other end of the reset spring (17) abuts against the head of the second guide slide (12).

4. The inductance adjustment mechanism according to claim 3, characterized in that, The bottom cover (10) is provided with buckle plates (18) on the left and right sides for snapping with the left side plate (903) or the right side plate (904), and the bottom cover (10) is provided with terminal holes (19) for the coil terminals of the inductor (100) to pass through.

5. The inductance adjustment mechanism according to claim 4, characterized in that, The left side plate (903) and the right side plate (904) are respectively provided with positioning holes (20). The number of locking components (2) is set to two sets. One set of locking components (2) is used to clamp and fix the left side plate (903), and the other set of locking components (2) is used to clamp and fix the right side plate (904). The locking components (2) include a first locking block (201) and a second locking block (202) for insertion and connection with the positioning holes (20), and a clamping cylinder (203) for driving the first locking block (201) and the second locking block (202) to move closer or further away from each other.

6. The inductance adjustment mechanism according to claim 5, characterized in that, The electrical connection assembly (3) includes a test terminal plate (301) for electrically connecting to the coil terminals of the inductor (100) and a telescopic cylinder (302) for driving the test terminal plate (301) to move up and down. The test terminal plate (301) is electrically connected to the test machine to acquire the inductance change data of the inductor (100) in real time.

7. The inductance adjustment mechanism according to claim 6, characterized in that, A torque detection device for real-time detection of torque value changes is also provided between the output shaft of the second servo motor (8) and the screw sleeve (7).

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