Inductance value adjusting mechanism

Abstract

The invention relates to the technical field of inductor production equipment, and discloses an inductance value adjusting mechanism which comprises an inductor jig internally containing an inductor, a jig positioning part used for locking and positioning the inductor jig, and a jig adjusting part used for being in transmission connection with the inductor jig to adjust the inductance value of the inductor. The jig positioning part comprises a first base, and a locking assembly and an electric connection assembly are arranged on the first base; the jig adjusting part comprises a second base, a first movable base and a first servo motor are arranged on the second base, and a plurality of sets of screw sleeves used for being in transmission connection with the inductance jig and a plurality of sets of second servo motors used for driving the screw sleeves to rotate are arranged on the first movable base. The inductance value adjusting mechanism has the advantages of being simple in structure, easy and convenient to operate, high in automation degree and good in use convenience, and the production efficiency and the product quality can be effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of inductance production equipment, in particular to an inductance adjusting mechanism. BACKGROUND

[0002] Inductance is a component that can convert electrical energy into magnetic energy and store it. The structure of inductance is similar to that of a transformer, but only has one winding. The magnetic ring inductance is formed by winding a coil on a magnetic ring. One wire from beginning to end is a differential mode inductance, and two wires that are double-wound or separated into two parts are common mode inductances. In the production process of inductors, adjusting the inductance by changing the gap of the magnetic core is one of the most commonly used and most core adjusting methods. The current inductance adjusting mechanism has a complex structure and complicated adjusting operation, resulting in low production efficiency and poor product consistency. SUMMARY

[0003] The technical problem to be solved by the present application is to overcome the deficiencies of the prior art and provide an inductance adjusting mechanism that is simple in structure, easy to operate, high in automation, convenient to use, and can effectively improve production efficiency and product quality.

[0004] To solve the above technical problems, the present application adopts the following technical scheme:

[0005] An inductance adjusting mechanism, comprising an inductance jig internally accommodating an inductor, a jig positioning part for locking and fixing the inductance jig, and a jig adjusting part for transmission connection with the inductance jig to adjust the inductance of the inductor.

[0006] The jig positioning part comprises a first base, and the first base is provided with a locking assembly for clamping and fixing the inductance jig and an electrical connection assembly for electrical connection with the inductor to obtain real-time inductance change data.

[0007] The jig adjusting part comprises a second base, and the second base is provided with a first movable seat and a first servo motor for driving the first movable seat to move back and forth, and the first movable seat is provided with a plurality of groups of screw sleeves for transmission connection with the inductance jig and a second servo motor for driving the screw sleeves to rotate.

[0008] As a further improvement of the above technical scheme:

[0009] The inductance jig comprises a top cover and a bottom cover, the top cover comprises a frame structure enclosed by an upper side plate, a front side plate, a left side plate, a right side plate and a driven pressing plate, one end of the driven pressing plate is movably connected to the left side plate through a first guide slide rod, and the other end of the driven pressing plate is movably connected to the right side plate through a first guide slide rod.

[0010] The inner side of the front side plate is provided with a driving pressing plate, the driving pressing plate is movably connected to the front side plate through a second guide sliding rod, an adjusting screw is threadedly connected to the front side plate, a screw sleeve is sleeved on the head of the adjusting screw, the rod of the adjusting screw abuts against the driving pressing plate, and the driving pressing plate and the driven pressing plate are close to or away from each other through a symmetrical slider-crank mechanism.

[0011] The number of the symmetrical slider-crank mechanisms is two, one set of the symmetrical slider-crank mechanisms is arranged on the left side plate, and the other set of the symmetrical slider-crank mechanisms is arranged on the right side plate, the symmetrical slider-crank mechanism comprises a rotating disc, a driving connecting rod and a driven connecting rod, the rotating disc is rotatably arranged on the left side plate or the right side plate, one end of the rotating disc is provided with a driving transfer position, and the other end of the rotating disc is provided with a driven transfer position.

[0012] One end of the driving connecting rod is connected with the driving pressing plate, the other end of the driving connecting rod is connected with the driving transfer position, one end of the driven connecting rod is connected with the driven transfer position, and the other end of the driven connecting rod is connected with the driven pressing plate.

[0013] A reset spring is sleeved on the second guide sliding rod, one end of the reset spring abuts against the outer side of the front side plate, and the other end of the reset spring abuts against the head of the second guide sliding rod.

[0014] The left and right sides of the bottom cover are respectively provided with buckle plates for buckling connection with the left side plate or the right side plate, and the bottom cover is provided with terminal hole positions 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 the locking assemblies is two, one set of the locking assemblies is used for clamping and fixing the left side plate, and the other set of the locking assemblies is used for clamping and fixing the right side plate, the locking assembly comprises a first locking block and a second locking block for plug-in connection with the positioning hole, and a clamping cylinder for driving the first locking block and the second locking block to be close to or away from each other.

[0016] The electric connection assembly comprises a test terminal plate for electrically connecting with the coil terminals of the inductor and a telescopic cylinder for driving the test terminal plate to ascend and descend, and the test terminal plate is electrically connected with a testing machine, so that the inductance change data of the inductor can be obtained in real time.

[0017] The second servo motor and the screw sleeve are further provided with a torque detection device for detecting the torque value change in real time.

[0018] Compared with the prior art, the advantages of the present application are that:

[0019] The inductance adjusting mechanism comprises a jig positioning part and a jig adjusting part, and the inductor is accommodated in the inductance jig as a workpiece to be adjusted, wherein the jig positioning part comprises a first base, a locking assembly and an electrical connection assembly, the inductance jig is locked on the first base through the locking assembly, and the inductance is electrically connected through the electrical connection assembly to realize real-time acquisition of inductance change; the jig adjusting part comprises a screw sleeve and a second servo motor, the screw sleeve is in transmission connection with the inductance jig, and the screw sleeve is driven to rotate by the second servo motor, so that the inductor in the inductance jig is pre-tightened, thereby changing the gap of the magnetic core, adjusting the inductance, and having the advantages of simple structure, easy operation, high automation degree, convenient use, and the like, and can effectively improve the production efficiency and product quality. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structural schematic view of the inductance adjusting mechanism.

[0021] Figure 2 It is a structural schematic view of the inductance adjusting mechanism from another angle.

[0022] Figure 3 It is a structural schematic view of the inductance jig and the jig positioning part.

[0023] Figure 4 It is a structural schematic view of the inductance jig and the jig positioning part from a bottom view angle.

[0024] Figure 5 It is a structural schematic view of the inductance jig.

[0025] Figure 6 It is a structural schematic view of the inductance jig.

[0026] Figure 7 It is a structural schematic view of the top cover.

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

[0028] Figure 9 It is a structural schematic view of the symmetrical slider-crank mechanism.

[0029] LEGEND

[0030] 100, inductor; 200, inductance jig; 300, jig positioning part; 400, jig adjusting 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 inductance fixture 200 comprises a top cover 9 and a bottom cover 10, the top cover 9 comprises a frame structure enclosed 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 through a first guide slide rod 11, the other end of the driven pressure plate 905 is movably connected to the right side plate 904 through the first guide slide rod 11; the inner side of the front side plate 902 is provided with a driving pressure plate 906, the driving pressure plate 906 is movably connected to the front side plate 902 through a second guide slide rod 12, the front side plate 902 is threadedly connected with an adjusting screw 13, a screw sleeve 7 is sleeved on the head of the adjusting screw 13, the rod part of the adjusting screw 13 abuts against the driving pressure plate 906, the driving pressure plate 906 and the driven pressure plate 905 realize mutual approaching or moving away through a symmetrical slider-crank mechanism 907. In this embodiment, a group of first guide slide rods 11 pass through the driven pressure plate 905 and are fixedly arranged on the left side plate 903, a group of first guide slide rods 11 pass through the driven pressure plate 905 and are fixedly arranged on the right side plate 904, so that the driven pressure plate 905 can move horizontally and reciprocally in 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 groups of second guide slide rods 12 pass through the front side plate 902 and are fixedly arranged on the driving pressure plate 906, so that the driving pressure plate 906 can move horizontally and reciprocally in the range between the head of the second guide slide rod 12 and the front side plate 902; the first movable seat 5 is driven to move by the first servo motor 6, so that the screw sleeve 7 is sleeved on the head of the adjusting screw 13, when the adjusting screw 13 is screwed inward on the front side plate 902, the rod part of the adjusting screw 13 abuts against and pushes inward the driving pressure plate 906, the driving pressure plate 906 drives the driven pressure plate 905 to move mutually close through the symmetrical slider-crank mechanism 907, so as to exert a pre-tightening force on the inductance 100.

[0035] Preferably, the number of groups of the symmetrical slider-crank mechanism 907 is set to two groups, one group of the symmetrical slider-crank mechanism 907 is arranged on the left side plate 903, and one group of the symmetrical slider-crank mechanism 907 is arranged on the right side plate 904, the symmetrical slider-crank mechanism 907 comprises a rotating disc 14, a driving connecting rod 15 and a driven connecting rod 16, the rotating disc 14 is rotationally arranged on the left side plate 903 or the right side plate 904, one end of the rotating disc 14 is provided with a driving transfer position 1401, the other end of the rotating disc 14 is provided with a driven transfer position 1402; one end of the driving connecting rod 15 is connected with the driving pressure plate 906, the other end of the driving connecting rod 15 is connected with the driving transfer position 1401, one end of the driven connecting rod 16 is connected with the driven transfer position 1402, the other end of the driven connecting rod 16 is connected with the driven pressure plate 905. In this embodiment, as shown in the figure, the driving transfer position 1401 and the driven transfer position 1402 are arranged on the same side of the rotating disc 14, the driving transfer position 1401 is arranged on the left side of the rotating disc 14, and the driven transfer position 1402 is arranged on the right side of the rotating disc 14. Figure 9As shown, when the adjusting screw 13 is screwed inward, the driving pressing plate 906 is pushed inward, and the driving pressing plate 906 and the driving connecting rod 15 act as driving members to drive the rotating disc 14 to rotate counterclockwise, and then the rotating disc 14 drives the driven connecting rod 16 and the driven pressing plate 905 to push inward, and the rotating motion of the rotating disc 14 is converted into the linear motion of the driving pressing plate 906 and the driven pressing plate 905 moving close to each other.

[0036] Preferably, the second guide slide rod 12 is sleeved with a reset spring 17, 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 rod 12. In this embodiment, the second guide slide rod 12 is sleeved with the reset spring 17, 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 rod 12. When the adjusting screw 13 is screwed inward, the adjusting screw 13 drives the driving pressing plate 906 to move inward, and at this time the head of the second guide slide rod 12 compresses the reset spring 17. When the adjusting screw 13 is screwed outward, the driving pressing plate 906 loses the supporting force of the adjusting screw 13, and at this time the reset spring 17 drives the second guide slide rod 12 and the driving pressing plate 906 to move outward under the action of the elastic restoring force, so that the driving pressing plate 906 and the adjusting screw 13 always abut against each other.

[0037] Preferably, the left and right sides of the bottom cover 10 are respectively provided with buckle plates 18 for buckling connection with the left side plate 903 or the right side plate 904, and the bottom cover 10 is provided with terminal hole positions 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 buckle grooves, the top cover 9 is placed on the bottom cover 10, and the inductor 100 is locked in the inductor jig 200 by buckling the buckle plates 18 in the buckle grooves, so that the connection is stable and the product quality is improved. A plurality of terminal hole positions 19 are formed in the middle of the bottom cover 10, and the coil terminals of the inductor 100 can be correspondingly passed through the terminal hole positions 19, so that the electrical connection assembly 3 can be electrically connected with the coil terminals through the terminal hole positions 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 assemblies 2 is set to two, one set of locking assemblies 2 is used for clamping and fixing the left side plate 903, and the other set of locking assemblies 2 is used for clamping and fixing the right side plate 904. The locking assembly 2 comprises a first locking block 201 and a second locking block 202 for plug-in connection with the positioning hole 20, and a clamping cylinder 203 for driving the first locking block 201 and the second locking block 202 to approach or move away from each other. In this embodiment, the left side plate 903 and the right side plate 904 are provided with positioning holes 20 on the front and back sides, and the first locking block 201 and the second locking block 202 are respectively provided with plug-in rod portions. When the clamping cylinder 203 drives the first locking block 201 and the second locking block 202 to approach each other, the plug-in rod portion on the second locking block 202 is inserted into the positioning hole 20 on the front side, and the plug-in rod portion on the first locking block 201 is inserted into the positioning hole 20 on the back side, thereby locking the inductor jig 200 on the first base 1, and the connection is stable.

[0039] Preferably, the electrical connection assembly 3 comprises 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 ascend and descend, and the test terminal plate 301 is electrically connected with a test machine to obtain inductance change data of the inductor 100 in real time. In this embodiment, the test terminal plate 301 is provided with a plurality of test terminals, and the test terminal plate 301 is driven to ascend by the telescopic cylinder 302, so that the test terminals can be inserted into the terminal hole 19 of the bottom cover 10 from bottom to top, so that the test terminals are electrically connected with the coil terminals of the inductor 100, and the test machine can obtain inductance data of the inductor 100 in real time.

[0040] Preferably, a torque detection device is further arranged between the output shaft of the second servo motor 8 and the screw sleeve 7 for real-time detection of torque value change. In this embodiment, the pre-tightening force applied by the driving pressure plate 906 and the driven pressure plate 905 to the inductor 100 can be quantified as the torque value of the motor output shaft, and the torque detection device is arranged 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, the pre-tightening force applied by the driving pressure plate 906 and the driven pressure plate 905 to the inductor 100.

[0041] In actual application, the inductance of the inductor 100 can be adjusted by changing the value of the torque applied by the second servo motor 8, i.e. changing the pre-tightening force applied by the driving pressure plate 906 and the driven pressure plate 905 to the inductor 100. In the embodiment, the pre-tightening force applied by the driving pressure plate 906 and the driven pressure plate 905 to the inductor 100 is quantified as the value of the torque applied by the second servo motor 8 being in the range of 2-5 kg. Before the inductance adjustment process, the inductor 100 is first placed in the inductor fixture 200, at which time the driving pressure plate 906 and the driven pressure plate 905 have already applied a pre-tightening force to the inductor 100. Then the inductor fixture 200 is locked on the fixture positioning part 300, at which time the test terminal plate 301 is electrically connected to the coil terminals of the inductor 100. The inductance data of the inductor 100 is acquired in real time on the test machine. When the inductance of the inductor 100 in the inductor fixture 200 meets the production standard, it is determined to be qualified, and the inductor fixture 200 and the inductor 100 therein are transported 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 sleeved on the head of the adjustment screw 13, and the adjustment screw 13 is driven to rotate by the second servo motor 8, so that the driving pressure plate 906 is pushed inward by the adjustment screw 13, and the driving pressure plate 906 drives the driven pressure plate 905 to also be pushed inward through the symmetrical slider-crank mechanism 907, thereby increasing the pre-tightening force applied by the driving pressure plate 906 and the driven pressure plate 905 to the inductor 100, and realizing the increase of the inductance of the inductor 100. At this time, the torque detection device displays the change of the torque value of the second servo motor 8 in real time, and the test machine displays the change of the inductance of the inductor 100 in real time. If the inductance of the inductor 100 reaches the production standard, the corresponding torque value is in the range of 2-5 kg, the second servo motor 8 stops loading, the adjustment screw 13 remains fixed on the front plate 902, at which time the pre-tightening force applied by the driving pressure plate 906 and the driven pressure plate 905 to the inductor 100 remains unchanged, it is determined to be qualified, and the inductor fixture 200 and the inductor 100 therein are transported to the next process. If the torque detection device displays that the torque value of the second servo motor 8 exceeds 5 kg, and the inductance of the inductor 100 has not reached the production standard, i.e. the pre-tightening force applied by the driving pressure plate 906 and the driven pressure plate 905 to the inductor 100 has exceeded the standard, and the inductance has not reached the production standard, it is determined to be unqualified, and the inductor fixture 200 and the inductor 100 therein are marked as defective products for processing.

[0042] The above only describes the preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-described embodiments. Improvements and changes made by those skilled in the art without departing from the technical concept of the present application should also be considered as the protection scope of the present application.

Claims

1. An inductance adjusting mechanism characterized by comprising: The inductor fixture (200) includes an inductor (100), a fixture positioning part (300) for locking the inductor fixture (200), and a fixture adjusting part (400) for driving connection with the inductor fixture (200) to adjust the inductance of the inductor (100); The fixture positioning part (300) includes a first base (1) provided with a locking assembly (2) for clamping and fixing the inductor fixture (200) and an electrical connection assembly (3) for electrical connection with the inductor (100) to obtain real-time inductance change data; The fixture adjusting part (400) includes a second base (4) provided with a first movable seat (5) and a first servo motor (6) for driving the first movable seat (5) to move back and forth, and the first movable seat (5) is provided with a plurality of groups of screw sleeves (7) for driving connection with the inductor fixture (200) and a second servo motor (8) for driving the screw sleeves (7) to rotate.

2. The inductance adjusting mechanism according to claim 1, wherein The inductor fixture (200) includes a top cover (9) and a bottom cover (10), the top cover (9) includes a frame structure enclosed by an upper side plate (901), a front side plate (902), a left side plate (903), a right side plate (904) and a driven pressing plate (905), one end of the driven pressing plate (905) is movably connected to the left side plate (903) through a first guide slide rod (11), and the other end of the driven pressing plate (905) is movably connected to the right side plate (904) through a first guide slide rod (11); The inner side of the front side plate (902) is provided with a driving pressing plate (906), the driving pressing plate (906) is movably connected to the front side plate (902) through a second guide slide rod (12), the front side plate (902) is threadedly connected with an adjusting screw (13), the screw sleeve (7) is sleeved on the head of the adjusting screw (13), the rod of the adjusting screw (13) abuts against the driving pressing plate (906), and the driving pressing plate (906) and the driven pressing plate (905) are relatively close or far away through a symmetrical slider crank mechanism (907).

3. The inductance adjusting mechanism according to claim 2, wherein The number of groups of the symmetrical slider crank mechanism (907) is two, one group of the symmetrical slider crank mechanism (907) is arranged on the left side plate (903), and the other group of the symmetrical slider crank mechanism (907) is arranged on the right side plate (904), the symmetrical slider crank mechanism (907) includes a rotating disc (14), a driving connecting rod (15) and a driven connecting rod (16), the rotating disc (14) is rotatably arranged on the left side plate (903) or the right side plate (904), one end of the rotating disc (14) is provided with a driving transfer position (1401), and the other end of the rotating disc (14) is provided with a driven transfer position (1402). One end of the driving connecting rod (15) is connected with the driving pressing plate (906), and the other end of the driving connecting rod (15) is connected with the driving adapter site (1401); one end of the driven connecting rod (16) is connected with the driven adapter site (1402), and the other end of the driven connecting rod (16) is connected with the driven pressing plate (905).

4. The inductance adjusting mechanism according to claim 3, wherein The second guide slide rod (12) is sleeved with a reset spring (17), 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 rod (12).

5. The inductance adjusting mechanism according to claim 4, wherein The left and right sides of the bottom cover (10) are respectively provided with buckle plates (18) for buckling connection with the left side plate (903) or the right side plate (904), and the bottom cover (10) is provided with terminal hole positions (19) for the coil terminals of the inductor (100) to pass through.

6. The inductance adjusting mechanism according to claim 5, wherein The left side plate (903) and the right side plate (904) are respectively provided with positioning holes (20), the number of the locking assemblies (2) is two, one of the locking assemblies (2) is used for clamping and fixing the left side plate (903), and the other of the locking assemblies (2) is used for clamping and fixing the right side plate (904), the locking assembly (2) comprises first and second locking blocks (201) and (202) for plug-in connection with the positioning holes (20), and a clamping air cylinder (203) for driving the first and second locking blocks (201) and (202) to move close to or away from each other.

7. The inductance adjusting mechanism according to claim 6, wherein The electric connection assembly (3) comprises a test terminal plate (301) for electrically connecting with the coil terminals of the inductor (100) and a telescopic air cylinder (302) for driving the test terminal plate (301) to move up and down, and the test terminal plate (301) is electrically connected with a test machine to obtain inductance change data of the inductor (100) in real time.

8. The inductance adjusting mechanism according to claim 7, wherein The output shaft of the second servo motor (8) and the screw sleeve (7) are further provided with a torque detection device for detecting torque value change in real time.

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