Noise and abnormal sound testing equipment for earphone charging box

Abstract

The utility model relates to the technical field of acoustic testing, and discloses noise and abnormal sound testing equipment for an earphone charging box, which comprises a rack, a sound insulation sealing cover, a flexible rotary clamping mechanism, an earphone charging box fixing mechanism, a sound collecting mechanism, a first flexible pushing and pressing mechanism, a second flexible pushing and pressing mechanism and a controller, the earphone charging box is fixed by the earphone charging box fixing mechanism, the earphone charging box is pushed and turned over by the flexible rotary clamping mechanism, the first flexible pushing and pressing mechanism and the second flexible pushing and pressing mechanism, and the rotating shaft abnormal noise of the earphone charging box is collected by the sound collecting mechanism. According to the sound insulation sealing cover, the influence of equipment noise on earphone charging box testing can be avoided, so that the sound collection mechanism can monitor the noise and abnormal sound of the rotating shaft of the earphone charging box, the testing equipment is in flexible contact with the earphone charging box, damage to the earphone charging box in the clamping or pushing process of the earphone charging box is avoided, and the testing efficiency is improved. And earphone charging boxes with different sizes can be compatible.

Description

Technical Field

[0001] The utility model relates to the technical field of acoustic testing, in particular to a noise and abnormal sound testing device for an earphone charging box. Background Technique

[0002] At present, the flipping of the upper cover of domestic Bluetooth earphone charging boxes is generally applied in the aging field, and there is no requirement for the noise of the mechanism itself. This structure is rarely seen in the acoustic application field, and the noise of the device itself must be attenuated in the acoustic application field. With the continuous increase in the market demand for Bluetooth earphone charging boxes, and at the same time, consumers' requirements for the noise experience during the flipping of the upper cover of the charging box have increased. However, there is currently no device for testing the flipping noise of the upper cover. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the above-mentioned deficiencies existing in the prior art, and provide a noise and abnormal sound testing device for an earphone charging box.

[0004] The purpose of the utility model is achieved through the following technical solutions: A noise and abnormal sound testing device for an earphone charging box includes a frame, a sound insulation and sealing cover, a flexible rotary clamping mechanism, an earphone charging box fixing mechanism, a sound collection mechanism, a first flexible pressing mechanism, a second flexible pressing mechanism and a controller. The flexible rotary clamping mechanism includes a transverse movement structure, a rotary structure, a flexible clamping structure and a clamping rotary base. The flexible clamping structure includes a flexible clamping assembly for clamping and flipping the upper cover of the earphone charging box and a first flexible pressing assembly for pressing the upper cover. The earphone charging box fixing mechanism is installed on the frame, and the earphone charging box fixing mechanism fixes an earphone charging box. The sound insulation and sealing cover respectively covers the fixed ends of the transverse movement structure, the rotary structure, the fixed end of the first flexible pressing mechanism and the fixed end of the second flexible pressing mechanism. The rotary ends of the rotary structure, the telescopic ends of the first flexible pressing mechanism and the telescopic ends of the second flexible pressing mechanism all protrude from the sound insulation and sealing cover. The telescopic and rotary end of the flexible rotary clamping mechanism is connected to the first flexible pressing assembly through the flexible clamping assembly. The telescopic ends of the first flexible pressing mechanism and the second flexible pressing mechanism are both provided with second flexible pressing assemblies for pressing the upper cover. The sound collection mechanism is installed on one side of the earphone charging box. The controller is respectively connected to the flexible clamping assembly, the second flexible pressing assembly, the sound collection mechanism, the first flexible pressing mechanism and the second flexible pressing mechanism.

[0005] A better choice, the lateral movement structure includes a lateral movement motor, a belt, a driven wheel, a clamping member, a track base, a first guide rail, and a lateral slider. The first guide rail is installed on the clamping and rotating base through the track base. The lateral slider is slidably installed on the first guide rail. The lateral slider is connected to the middle of the belt through the clamping member. The two ends of the belt are respectively connected to the lateral movement motor and the driven wheel. The lateral movement motor is connected to the controller.

[0006] A better choice, the rotation structure includes a rotation angle motor, a first motor fixing base, a coupling, a rotating shaft fixing base, a rotating rod, and a rotating substrate. The rotating substrate is installed on the lateral movement structure. The rotation angle motor is installed on the rotating substrate through the first motor fixing base. The rotating rod is rotatably installed on the rotating substrate through the rotating shaft fixing base. The rotation angle motor is connected to one end of the rotating rod through the coupling. The other end of the rotating rod passes through the sound insulation and sealing cover and is connected to the flexible clamping assembly. The rotation angle motor is connected to the controller.

[0007] A better choice, the flexible clamping assembly includes a connecting base, a motor protection cover, a claw motor, a motor mounting seat, a connecting rod assembly, and a flexible claw. One end of the motor protection cover is connected to the rotation structure through the connecting base. The other end of the motor protection cover is connected to the motor mounting seat. The claw motor is installed on one side of the motor mounting seat. The claw motor is connected to the threaded end of the connecting rod assembly through a thread. The longitudinal end of the connecting rod assembly is hinged to the motor mounting seat. The lateral end of the connecting rod assembly is connected to the flexible claw. The motor mounting seat is connected to the first flexible pressing assembly. The claw motor is connected to the controller.

[0008] A better choice, the connecting rod assembly includes a threaded block, a connecting rod, and an L-shaped connecting rod. The threaded block is connected to the claw motor through a thread. The two ends of the threaded block are hinged to the middle of the L-shaped connecting rod through the connecting rod. The longitudinal end of the L-shaped connecting rod is hinged to the motor mounting seat. The lateral end of the L-shaped connecting rod is connected to the flexible claw.

[0009] A better choice, the first flexible pressing assembly includes a push rod fixing base, a first pressure sensor, and a first flexible contact part. The push rod fixing base, the first pressure sensor, and the first flexible contact part are connected in sequence. The push rod fixing base is connected to the flexible clamping assembly. The first pressure sensor is connected to the controller.

[0010] A better option is that the first flexible pressing mechanism includes a second motor fixing base, a pressing motor, a turntable, a swing rod, a second guide rail, a pressing slider, a rod end fixing piece, a push rod, a second pressure sensor, and a flexible pressing base. The second motor fixing base is installed on the frame through the flexible pressing base. The turntable is installed on the second motor fixing base through the pressing motor. The swing end of the swing rod is rotatably installed on the turntable, and the swing end is far from the center of the turntable. The telescopic end of the swing rod is hinged to the pressing slider. The second guide rail is installed on the second motor fixing base, and the pressing slider is slidably installed on the second guide rail. One end of the push rod is installed on the pressing slider through the rod end fixing piece, and the second flexible contact part is connected to the other end of the push rod through the second pressure sensor. The pressing motor and the second pressure sensor are both connected to the controller.

[0011] A better option is that the sound insulation and sealing cover includes a sound insulation layer, a protective cover, and a sealing ring. The protective cover covers the lateral movement structure, the fixed end of the rotating structure, the fixed end of the first flexible pressing mechanism, and the fixed end of the second flexible pressing mechanism through the sealing ring respectively. The sound insulation layer is installed on the inner wall of the protective cover.

[0012] A better option is that the headphone charging box fixing mechanism includes a lateral adjustment plate, a longitudinal adjustment base, a guide post, a spring, a height adjustment bottom plate, a headphone charging box base, and a headphone charging box locking piece. The longitudinal adjustment base is installed on the frame through the lateral adjustment plate. The lower end of the guide post is installed on the longitudinal adjustment base, and the upper end of the guide post passes through the spring and abuts against the height adjustment bottom plate. The longitudinal adjustment base is provided with a height adjustment base, and the height adjustment base is adjustably connected to the longitudinal adjustment base. The headphone charging box base is installed on the longitudinal adjustment base, and the headphone charging box base is provided with a headphone charging box limit block. The headphone charging box locking piece matches the headphone charging box limit.

[0013] A better option is that the sound collection mechanism includes a rod end fixing base, a vertical support rod, a connecting piece, a horizontal support rod, and a sound collector. The vertical support rod is installed on the frame through the rod end fixing base. The sound collector is connected to the vertical support rod through the horizontal support rod and the connecting piece. The sound collector matches the headphone charging box, and the sound collector is connected to the controller.

[0014] The utility model has the following advantages and beneficial effects compared with the prior art:

[0015] The utility model includes a frame, a sound insulation and sealing cover, a flexible rotary clamping mechanism, a fixing mechanism for the headphone charging case, a sound collection mechanism, a first flexible pressing mechanism, a second flexible pressing mechanism and a controller. The sound insulation and sealing cover can reduce the influence of equipment noise on the test of the headphone charging case, so that the sound collection mechanism can monitor the noise and abnormal sound of the headphone charging case. The test equipment is in flexible contact with the headphone charging case, avoiding damage to the headphone charging case during the clamping or pressing process, and being able to be compatible with headphone charging cases of different sizes. Description of the Drawings

[0016] Figure 1 is a schematic diagram of a device for testing the noise and abnormal sound of a headphone charging case according to the utility model;

[0017] Figure 2 is a schematic diagram of a device for testing the noise and abnormal sound of a headphone charging case (with the sound insulation and sealing cover removed) according to the utility model;

[0018] Figure 3 is a schematic diagram of the flexible rotary clamping mechanism of a device for testing the noise and abnormal sound of a headphone charging case according to the utility model;

[0019] Figure 4 is a schematic diagram of the lateral movement structure of a device for testing the noise and abnormal sound of a headphone charging case according to the utility model;

[0020] Figure 5 is a schematic diagram of the rotary structure of a device for testing the noise and abnormal sound of a headphone charging case according to the utility model;

[0021] Figure 6 is a schematic diagram of the flexible clamping structure of a device for testing the noise and abnormal sound of a headphone charging case according to the utility model;

[0022] Figure 7 is a schematic diagram of the flexible clamping structure of a device for testing the noise and abnormal sound of a headphone charging case according to the utility model;

[0023] Figure 8 is an exploded view of the flexible clamping structure of a device for testing the noise and abnormal sound of a headphone charging case according to the utility model;

[0024] Figure 9 is a schematic diagram of the first flexible pressing mechanism of a device for testing the noise and abnormal sound of a headphone charging case according to the utility model;

[0025] Figure 10 is a schematic diagram of the fixing mechanism for the headphone charging case of a device for testing the noise and abnormal sound of a headphone charging case according to the utility model;

[0026] Figure 11 is a schematic diagram of the sound collection mechanism of a device for testing the noise and abnormal sound of a headphone charging case according to the utility model;

[0027] Figure 12 It is a schematic diagram of a sound insulation and sealing cover of a noise and abnormal sound testing device for a headphone charging case of the present utility model;

[0028] Markings of each component in the attached drawings: 1 - frame; 11 - support feet; 12 - universal wheels; 13 - handle; 2 - sound insulation and sealing cover; 21 - sound insulation layer; 22 - protective cover; 23 - sealing ring; 3 - flexible rotary clamping mechanism; 31 - lateral movement structure; 311 - lateral movement motor; 312 - belt; 313 - driven wheel; 314 - clamping member; 315 - track base; 316 - first guide rail; 317 - first position sensor; 318 - first displacement sensing piece; 319 - lateral slider; 32 - rotary structure; 321 - rotary angle motor; 322 - first motor fixing seat; 323 - coupling; 324 - rotating shaft fixing seat; 325 - angle sensor; 326 - rotary sensing piece; 327 - rotating rod; 328 - rotary substrate; 33 - flexible clamping structure; 331 - connecting base; 332 - motor protective cover; 333 - gripper motor; 334 - motor mounting seat; 335 - connecting rod assembly; 3351 - threaded block; 3352 - connecting rod; 3353 - L-shaped connecting rod; 3354 - second position sensor; 336 - push rod fixing seat; 3361 - second displacement sensing piece; 337 - flexible gripper; 3371 - flexible block; 338 - first pressure sensor; 339 - first flexible contact part; 34 - clamping rotary base; 4 - headphone charging case fixing mechanism; 401 - lateral adjustment plate; 402 - longitudinal adjustment base; 4021 - height adjustment base; 403 - spring; 404 - height adjustment bottom plate; 405 - headphone charging case base; 4051 - headphone charging case limit block; 406 - headphone charging case locking part; 5 - sound collection mechanism; 501 - rod end fixing seat; 502 - vertical support rod; 503 - connecting part; 504 - lateral support rod; 505 - sound collector; 6 - first flexible pressing mechanism; 601 - second motor fixing seat; 602 - pressing motor; 603 - turntable; 604 - swing rod; 605 - second guide rail; 606 - pressing slider; 607 - rod end fixing part; 608 - push rod; 609 - second pressure sensor; 610 - second flexible contact part; 611 - flexible pressing base; 612 - third position sensor; 613 - third displacement sensing piece; 7 - controller; 8 - second flexible pressing mechanism; 9 - headphone charging case; a - lateral direction; b - longitudinal direction; c - vertical direction. Detailed implementation manners

[0029] The utility model purpose of the present utility model will be further described in detail below in conjunction with the attached drawings and specific embodiments. The embodiments cannot be elaborated one by one here, but the implementation manners of the present utility model are not limited to the following embodiments.

[0030] As Figure 1 and 2 shown, a noise abnormal sound testing device for a headphone charging case includes a frame 1, three sound insulation and sealing covers 2, a flexible rotary clamping mechanism 3, a headphone charging case fixing mechanism 4, a sound collection mechanism 5, a first flexible pushing mechanism 6, a second flexible pushing mechanism 8 and a controller 7. The headphone charging case fixing mechanism 4 is installed in the middle front part of the top of the frame 1. The headphone charging case 9 includes an upper cover, a rotating shaft and a cabin body. The cabin body is connected to the upper cover through the rotating shaft. The cabin body is fixed on the headphone charging case fixing mechanism 4, and the upper cover can move relative to the cabin body. The flexible rotary clamping mechanism 3 is installed on the left side of the headphone charging case fixing mechanism 4, that is, on the left side of the top of the headphone charging case 9. The first flexible pushing mechanism 6 is installed on the right side of the headphone charging case fixing mechanism 4, that is, on the right side of the top of the headphone charging case 9. The second flexible pushing mechanism 8 is installed on the rear side of the headphone charging case fixing mechanism 4, that is, on the rear side of the top of the headphone charging case 9. The sound insulation and sealing cover 2 on the left side of the top of the frame 1 is installed on the flexible rotary clamping mechanism 3 and covers the periphery of the flexible rotary clamping mechanism 3. The rotary telescopic end of the flexible rotary clamping mechanism 3 passes through the sound insulation and sealing cover 2 and extends to the left side of the upper cover. The sound insulation and sealing cover 2 on the right side of the top of the frame 1 is installed on the first flexible pushing mechanism 6 and covers the periphery of the first flexible pushing mechanism 6. The telescopic end of the first flexible pushing mechanism 6 passes through the sound insulation and sealing cover 2 and extends to the right side of the upper cover. The sound insulation and sealing cover 2 at the rear of the top of the frame 1 is installed on the second flexible pushing mechanism 8 and covers the periphery of the second flexible pushing mechanism 8. The telescopic end of the second flexible pushing mechanism 8 passes through the sound insulation and sealing cover 2 and then extends to the rear side of the upper cover. The sound collection mechanism 5 is arranged between the flexible rotary clamping mechanism 3 and the second flexible pushing mechanism 8, and the sound collection mechanism 5 is aligned with the headphone charging case 9. The controller 7 is installed in the frame 1, and the controller 7 is electrically connected to the flexible rotary clamping mechanism 3, the sound collection mechanism 5, the first flexible pushing mechanism 6 and the second flexible pushing mechanism 8 respectively.

[0031] The frame 1 is used to install and fix three soundproof sealing covers 2, a flexible rotating clamping mechanism 3, an earphone charging box fixing mechanism 4, a sound collecting mechanism 5, a first flexible pushing mechanism 6, a second flexible pushing mechanism 8 and a controller 7, and plays a supporting role. The three soundproof sealing covers 2 are used to reduce the noise generated by the flexible rotating clamping mechanism 3, the first flexible pushing mechanism 6 and the second flexible pushing mechanism 8 during the equipment operation test, so as to avoid interfering with the sound collecting mechanism 5 to collect the shaft noise of the earphone charging box 9 during the test. The flexible rotating clamping mechanism 3 is used to push the upper cover to the left and flip the upper cover to test whether the shaft generates noise. The earphone charging box fixing mechanism 4 is used to fix the cabin of the earphone charging box 9 and can adjust the position of the earphone charging box 9. The sound collecting mechanism 5 is used to collect the noise of the earphone charging box 9 during the test. The first flexible pushing mechanism 6 is used to push the upper cover from the right side of the earphone charging box 9 to test whether the earphone charging box 9 generates noise. The second flexible pushing mechanism 8 is used to push the upper cover on the back side of the earphone charging box 9 to test whether the earphone charging box 9 generates noise. The controller 7 is a PLC controller 7, which is used to link various mechanisms of the device.

[0032] like Figure 1 As shown, the rack 1 includes a frame, four supporting feet 11, four universal wheels 12 and four handles 13. The four supporting feet 11 are respectively arranged at the four corners of the bottom of the frame, the four universal wheels 12 are respectively arranged on the inner sides of the supporting feet 11, and the four handles 13 are symmetrically arranged on the left and right sides of the frame.

[0033] like Figure 3 As shown, the flexible rotating clamping mechanism 3 includes a lateral moving structure 31, a rotating structure 32, a flexible clamping structure 33 and a clamping rotating base 34. The clamping rotating base 34 is installed on the left side of the top of the frame 1 by bolts, and the lateral moving structure 31 is installed on the clamping rotating base 34 by bolts. The fixed end of the rotating structure 32 is installed on the top of the lateral moving structure 31. The sound insulation sealing cover 2 covers the entire lateral moving structure 31 and the fixed end of the rotating structure 32, and the rotating telescopic end of the rotating structure 32 passes through the sound insulation sealing cover 2 and is connected to the flexible clamping structure 33. The lateral moving structure 31, the rotating structure 32 and the flexible clamping structure 33 are all electrically connected to the controller 7.

[0034] The lateral moving structure 31 is used to allow the flexible clamping structure 33 to move laterally, so that the flexible clamping structure 33 pushes the upper cover on the left side. The rotating structure 32 is used to allow the flexible clamping structure 33 to rotate along the axial direction of the flexible clamping structure 33, so that the flexible clamping structure 33 flips the upper cover. The flexible clamping structure 33 is used to clamp or push the upper cover to achieve the rotation noise test of the rotating shaft and the left side push noise test of the upper cover. The clamping rotating base 34 is used to fix the lateral moving structure 31, to achieve the longitudinal position fine adjustment of the lateral moving structure 31, and to play a load-bearing role.

[0035] As Figure 4 shown, the lateral movement structure 31 includes a lateral movement motor 311, a belt 312, a driven wheel 313, a clamping member 314, a track base 315, two first guide rails 316, and a lateral slider 319. The two first guide rails 316 are installed on the clamping and rotating base 34 through the track base 315. The lateral movement motor 311 is installed on the left side of the track base 315 by bolts, and the driven wheel 313 is installed on the rear right side of the track base 315. The lateral slider 319 is installed on the two guide rails so as to be laterally movable. The driving wheel of the lateral movement motor 311 is connected to the driven wheel 313 through the belt 312. The clamping member 314 is installed on the belt 312, and the clamping member 314 is connected to the rear side end of the lateral slider 319 by bolts. A first displacement induction sheet 318 is installed at the front side end of the lateral slider 319, and three first position sensors 317 are evenly installed on the track base 315. During the lateral movement of the lateral slider 319, it sequentially passes through the three first position sensors 317. The three first position sensors 317 and the lateral movement motor 311 are both electrically connected to the controller 7.

[0036] The lateral movement motor 311 indirectly provides power for the lateral movement of the lateral slider 319. The belt 312 plays a transmission role. The driven wheel 313 is used to adjust the tightness of the belt 312. The clamping member 314 is used to connect the lateral slider 319 and the belt 312 to achieve transmission. The track base 315 is used to fixedly install the two first guide rails 316 to make the levels of the two first guide rails 316 consistent. The cooperation between the first guide rail 316 and the lateral slider 319 plays a role in guiding and reducing friction.

[0037] As Figure 5 shown, the rotating structure 32 includes a rotation angle motor 321, a first motor fixing base 322, a coupling 323, a rotating shaft fixing base 324, a rotating rod 327, and a rotating substrate 328. The rotating substrate 328 is installed on the top of the clamping and rotating base 34. The first motor fixing base 322 is installed on the left side of the rotating substrate 328, and the rotating shaft fixing base 324 is installed on the right side of the rotating substrate 328. The rotation angle motor 321 is installed on the first motor fixing base 322, and the rotating rod 327 is rotatably installed on the rotating shaft fixing base 324 along the axis of the rotating rod 327. The rotation angle motor 321 is connected to the left end of the rotating rod 327 through the coupling 323. A rotation induction sheet 326 is provided on the rotating rod 327, and four angle sensors 325 are installed on the rotating shaft fixing base 324. When the rotating rod 327 rotates, the rotation induction sheet 326 will sequentially pass through the four angle sensors 325. The right end of the rotating rod 327 passes through the sound insulation and sealing cover 2 and is connected to the flexible clamping structure 33. The four angle sensors 325 and the rotation angle motor 321 are both electrically connected to the controller 7.

[0038] The rotation angle motor 321 provides power for the rotation of the rotating rod 327, thereby realizing the flipping of the upper cover. The first motor fixing seat 322 is used for fixedly installing the rotation angle motor 321. The coupling 323 is used to connect the rotation angle motor 321 and the rotating rod 327. The rotating shaft fixing seat 324 is used for fixing the rotating rod 327 and plays a supporting role. The rotating rod 327 plays a transmission role, and the power of the rotation angle motor 321 is transmitted to the flexible clamping structure 33. The rotating substrate 328 keeps the rotating shaft fixing seat 324 and the first motor fixing seat 322 on the same horizontal plane and plays a load-bearing role. The cooperation between the rotation induction piece 326 and the four angle sensors 325 realizes the monitoring of the rotation angle of the rotating rod 327 and realizes the flipping of the upper cover.

[0039] As Figures 6 - 8As shown, the flexible clamping structure 33 includes a flexible clamping component and a first flexible pushing component. The flexible clamping component includes a connection base 331, a motor protection cover 332, a gripper motor 333, a motor mounting base 334, a connecting rod assembly 335, and two flexible grippers 337. The first flexible pushing component includes a push rod fixing base 336, a first flexible contact part 339, and a first pressure sensor 338. The connecting rod assembly 335 includes a threaded block 3351, two connecting rods 3352, and two L-shaped connecting rods 3353. The rotating rod 327 of the rotating structure 32 is clamped in the connection base 331. One side of the connection base 331 away from the rotating rod 327 is connected to the left end of the motor protection cover 332. The right end of the motor protection cover 332 is connected to the motor mounting base 334. The motor mounting base 334 is of a U-shaped structure. The gripper motor 333 is located between the motor protection cover 332 and the motor mounting base 334 and is mounted on the motor mounting base 334. One side of the motor mounting base 334 away from the gripper motor 333 is connected to the push rod fixing base 336. The rotating shaft of the gripper motor 333 passes through the through hole of the motor mounting base 334 and is threadedly connected to the threaded block 3351. The two ends of the threaded block 3351 are respectively hinged to one end of the two connecting rods 3352. The other ends of the two connecting rods 3352 are hinged to the middle parts of the two L-shaped connecting rods 3353. The longitudinal ends of the two L-shaped connecting rods 3353 are hinged to the two ends of the motor mounting base 334. The transverse ends of the two L-shaped connecting rods 3353 are connected to the two flexible grippers 337. Each of the two flexible grippers 337 is provided with a flexible block 3371. The first flexible contact part 339 is mounted on one side of the push rod fixing base 336 away from the motor mounting base 334 through the first pressure sensor 338. The first flexible contact part 339 is located between the two flexible grippers 337. The lengths of the two flexible grippers 337 are greater than that of the first flexible contact part 339. A second position sensor 3354 is mounted on the side of the motor protection cover 332. A second displacement sensing piece 3361 is mounted on the threaded block 3351. When the two flexible grippers 337 open or approach, the second displacement sensing piece 3361 moves horizontally and passes through the second position sensor 3354. The gripper motor 333, the second position sensor 3354, and the first pressure sensor 338 are all electrically connected to the controller 7.

[0040] The connecting base 331 serves to connect the rotating rod 327 and the motor protection cover 332. The motor protection cover 332 protects the gripper motor 333 and is used to mount the second position sensor 3354. The gripper motor 333 provides power for the opening or clamping of the two flexible grippers 337. The motor mounting base 334 is used to mount the gripper motor 333 and the connecting rod assembly 335. The connecting rod assembly 335 converts the rotation of the gripper motor 333 into the opening and closing power of the two flexible grippers 337, playing a transmission role. The push rod fixing seat 336 is used to fix the first flexible contact part 339. The two flexible grippers 337 are used to grip or release the upper cover of the earphone charging case 9 and avoid damaging the upper cover of the earphone charging case 9, thereby realizing the flipping of the upper cover. The first flexible contact part 339 is used to push the left end of the upper cover, so as to test whether abnormal noise is generated when the rotating shaft is stressed on the left side. The first pressure sensor 338 is used to detect the pressure of the first flexible contact part 339 on the upper cover, avoiding excessive thrust from damaging the earphone charging case 9. The mutual cooperation between the second displacement sensing piece 3361 and the second position sensor 3354 realizes the monitoring of the relative displacement of the threaded block 3351.

[0041] Such as Figure 9As shown, the structures of the first flexible pressing mechanism 6 and the second flexible pressing mechanism 8 are the same, which include a second motor fixing base 601, a pressing motor 602, a turntable 603, a swing rod 604, a second guide rail 605, a pressing slider 606, a rod end fixing part 607, a push rod 608, a second pressure sensor 609, a flexible pressing base 611 and a second flexible contact part 610. The flexible pressing base 611 is installed on the right side of the top of the frame 1, and the second motor fixing base 601 is installed on the top of the flexible pressing base 611. The pressing motor 602 is installed in the second motor fixing base 601. The rotating shaft of the pressing motor 602 passes through the through hole of the second motor fixing base 601 and is connected to the center of the turntable 603. The right end of the swing rod 604 is hinged to the top of the turntable 603. The installation position of the right end of the swing rod 604 deviates from the center of the circle and is close to the edge of the turntable 603. The right end of the swing rod 604 is hinged to the right end of the pressing slider 606. The pressing slider 606 is slidably installed on the second guide rail 605. The second guide rail 605 is installed on the left end of the second motor fixing base 601. The rod end fixing part 607 is installed on the top left end of the pressing slider 606. A third displacement induction piece 613 is installed on the front side of the pressing slider 606, and two third position sensors 612 are installed on the front side of the second motor fixing base 601. When the pressing slider 606 moves horizontally left and right, one of the two third position sensors 612 senses the third displacement induction piece 613. The right end of the push rod 608 is fixed to the rod end fixing part 607. The left end of the push rod 608 is connected to the second flexible contact part 610 through the second pressure sensor 609. The second flexible contact part 610 is located on the right side of the upper cover. The two third position sensors 612, the pressing motor 602 and the second pressure sensor 609 are all electrically connected to the controller 7.

[0042] The second motor fixing base 601 acts as a support. The pressing motor 602 provides power for the horizontal left and right movement of the second flexible contact part 610. The cooperation between the turntable 603 and the swing rod 604 realizes the horizontal left and right movement of the pressing slider 606. The second guide rail 605 plays a guiding role for the pressing slider 606. The pressing slider 606 is used to reduce friction. The rod end fixing part 607 is used to fix the push rod 608. The push rod 608 transmits the power of the horizontal left and right movement to the second flexible contact part 610. The second pressure sensor 609 is used to detect the thrust of the second flexible contact part 610 on the right side of the upper cover of the earphone charging box 9. The flexible pressing base 611 plays a role in bearing weight and longitudinally adjusting the position. The second flexible contact part 610 is made of flexible materials such as rubber or silica gel. The third position sensors 612 and the third displacement induction piece 613 cooperate with each other to detect the moving distance of the pressing slider 606 and feedback it to the controller 7 to control the rotation of the pressing motor 602.

[0043] As Figure 10As shown in the figure, the headphone charging case fixing mechanism 4 includes a horizontal adjustment plate 401, a vertical adjustment base 402, a spring 403, a height adjustment bottom plate 404, a headphone charging case base 405, and a headphone charging case locking member 406. The horizontal adjustment plate 401 is horizontally adjustably mounted on the front middle side of the top of the frame 1, and the vertical adjustment base 402 is vertically adjustably mounted on the top of the horizontal adjustment plate 401. Symmetrical height adjustment bases 4021 are provided on the top of the vertical adjustment base 402, and adjustment holes are provided on the height adjustment bases 4021. The height adjustment bottom plate 404 is vertically adjustably mounted on the guide posts. Four screw rods are connected between the vertical adjustment base 402 and the height adjustment bottom plate 404, and the two ends of the four springs 403 respectively abut against the vertical adjustment base 402 and the height adjustment bottom plate 404. The headphone charging case base 405 is mounted on the top of the height adjustment bottom plate 404. A headphone charging case 9 limiting block 4051 is provided on the left rear side of the top of the headphone charging case base 405, and the headphone charging case locking member 406 is mounted on the right front side of the top of the headphone charging case base 405. The cabin of the headphone charging case 9 can be locked under the cooperation of the headphone charging case 9 limiting block 4051 and the headphone charging case locking member 406.

[0044] The horizontal adjustment plate 401 is used for bearing and can adjust the position of the headphone charging case 9 in the horizontal direction. The vertical adjustment base 402 can adjust the position of the headphone charging case 9 in the vertical direction. The cooperation between the guide posts and the height adjustment bottom plate 404 can adjust the position of the headphone charging case 9 in the height direction. The spring 403 plays a buffering role. The height adjustment bottom plate 404 is used to adjust the horizontal position of the headphone charging case 9. The headphone charging case base 405 and the headphone charging case locking member 406 cooperate to fix the cabin of the headphone charging case 9, and the headphone charging case locking member 406 can be purchased in the existing market.

[0045] As Figure 11 shown in the figure, the sound collection mechanism 5 includes a rod end fixing seat 501, a vertical support rod 502, a connecting member 503, a horizontal support rod 504, and a sound collector 505. The rod end fixing seat 501 is mounted on the top of the frame 1 by bolts. The lower end of the vertical support rod 502 is fixed to the rod end fixing seat 501, and the upper end of the vertical support rod 502 is connected to the left end of the horizontal support rod 504 through the connecting member 503. The vertical support rod 502 and the horizontal support rod 504 are perpendicular to each other. The right end of the horizontal support rod 504 is connected to the sound collector 505. The sound collector 505 is located directly above the headphone charging case, and the sound collector 505 is connected to the controller 7.

[0046] The rod end fixing seat 501 is used to fix the vertical support rod 502 at the top of the frame 1. The vertical support rod 502 cooperates with the connecting piece 503 to adjust the position of the sound collector 505 in the height direction and the placement angle of the horizontal support rod 504. The cooperation between the connecting piece 503 and the horizontal support rod 504 can adjust the protruding distance of the sound collector 505 relative to the vertical support rod 502. The sound collector 505 is used to collect abnormal noise of the headphone charging case 9.

[0047] As Figure 12 shown, the sound insulation and sealing cover 2 includes a sound insulation layer 21, a protective cover 22 and a sealing ring 23. The protective cover 22 includes an upper frame and a lower frame, and the upper frame communicates with the lower frame. The inner walls of the upper frame and the lower frame are both covered with the sound insulation layer 21. The sound insulation layer 21 forms an accommodation cavity. At the bottom of the lower frame, it is respectively installed on the clamping and rotating base 34 of the flexible rotating clamping mechanism 3, the flexible pushing base 611 of the first flexible pushing mechanism 6, and the flexible pushing base 611 of the second flexible pushing mechanism 8 through the sealing ring 23.

[0048] The sound insulation layer 21 is used to improve the sound insulation effect of the protective cover 22. The protective cover 22 plays a protective role for the power parts of the flexible rotating clamping mechanism 3, the first flexible pushing mechanism 6 and the second flexible pushing mechanism 8, and avoids hurting the operator. The sealing ring 23 improves the sealing performance between the protective cover 22 and the flexible rotating clamping mechanism 3, the first flexible pushing mechanism 6 and the second flexible pushing mechanism 8, and further reduces the noise during the operation of the equipment.

[0049] Description of the equipment usage process:

[0050] The cabin of the headphone charging case 9 is clamped at the top of the headphone charging case fixing mechanism 4 through the headphone charging case locking piece 406, and the horizontal position of the headphone charging case 9 is finely adjusted through the horizontal adjustment plate 401 of the headphone charging case fixing mechanism 4. The headphone charging case 9 adjusts its position in the longitudinal direction through the longitudinal adjustment base 402, and the headphone charging case 9 adjusts its position in the height direction through the height adjustment bottom plate 404, so as to meet the position requirements for testing the headphone charging case 9.

[0051] Abnormal noise test of the earphone charging case 9 in the closed state: Turn on the device and conduct the test. Under the action of the sound insulation and sealing cover 2, the operating noise of the flexible rotary clamping mechanism 3, the first flexible pushing mechanism 6, and the second flexible pushing mechanism 8 is reduced, avoiding the interference of the device operating noise on the abnormal noise test of the earphone charging case 9. The cabin body and the upper cover of the earphone charging case 9 are in the closed state. Under the action of the lateral moving motor 311, the first flexible contact portion 339 of the flexible rotary clamping mechanism 3 pushes the left side of the upper cover to the right, and the sound collector 505 of the sound collection mechanism 5 collects the abnormal noise of the earphone charging case 9. After the flexible rotary clamping mechanism 3 completes the pushing test, the second flexible contact portion 610 of the first flexible pushing mechanism 6 pushes the right side of the upper cover to the left along the lateral direction, and the sound collector 505 of the sound collection mechanism 5 collects the abnormal noise of the earphone charging case 9. After the first flexible pushing mechanism 6 completes the pushing test, the second flexible contact portion 610 of the second flexible pushing mechanism 8 pushes the rear side of the upper cover forward along the longitudinal direction, and the sound collector 505 of the sound collection mechanism 5 collects the abnormal noise of the rotating shaft of the earphone charging case 9.

[0052] Abnormal noise test of the upper cover flipping of the earphone charging case 9: When the device is running, the flexible claw 337 is in the open state. Under the action of the lateral moving structure 31, the flexible claw 337 moves to the front and rear of the upper cover. Under the action of the claw motor 333 of the flexible clamping structure 33, the flexible claw 337 clamps the upper cover. Under the action of the rotating structure 32, the upper cover reciprocally flips relative to the cabin body, and the sound collector 505 of the sound collection mechanism 5 collects the abnormal noise during the flipping of the upper cover.

[0053] The above specific implementation manners are the preferred embodiments of the present invention and cannot limit the present invention. Any other changes or other equivalent replacement methods made without departing from the technical solution of the present invention are included in the protection scope of the present invention.

Claims

1. A noise test device for an earphone charging box, characterized in that: The present invention comprises a frame, a soundproof sealing cover, a flexible rotating clamping mechanism, an earphone charging box fixing mechanism, a sound collecting mechanism, a first flexible pushing mechanism, a second flexible pushing mechanism and a controller, wherein the flexible rotating clamping mechanism comprises a lateral moving structure, a rotating structure, a flexible clamping structure and a clamping rotating base, the flexible clamping structure comprises a flexible clamping component for clamping and flipping the upper cover of the earphone charging box and a first flexible pushing component for pushing the upper cover, the earphone charging box fixing mechanism is installed on the frame, the earphone charging box fixing mechanism is fixed with the earphone charging box, and the soundproof sealing cover respectively covers the lateral moving structure, the fixed end of the rotating structure, the fixed end of the first flexible pushing mechanism and The fixed end of the second flexible pushing mechanism, the rotating end of the rotating structure, the telescopic end of the first flexible pushing mechanism and the telescopic end of the second flexible pushing mechanism all protrude out of the sound insulation sealing cover, the telescopic rotating end of the flexible rotating clamping mechanism is connected to the first flexible pushing component through a flexible clamping component, the telescopic end of the first flexible pushing mechanism and the telescopic end of the second flexible pushing mechanism are both provided with a second flexible pushing component for pushing the upper cover, the sound collecting mechanism is installed on one side of the earphone charging box, and the controller is respectively connected to the flexible clamping component, the second flexible pushing component, the sound collecting mechanism, the first flexible pushing mechanism and the second flexible pushing mechanism.

2. According to claim 1, the noise and abnormal sound testing device of the earphone charging box is characterized in that: The lateral movement structure includes a lateral movement motor, a belt, a driven wheel, a clamping member, a track base, a first guide rail and a lateral slider. The first guide rail is installed on the clamping and rotating base through the track base. The lateral slider is slidably installed on the first guide rail. The lateral slider is connected to the middle part of the belt through the clamping member. The two ends of the belt are respectively connected to the lateral movement motor and the driven wheel. The lateral movement motor is connected to the controller.

3. According to claim 1, the noise and abnormal sound testing device of the earphone charging box is characterized in that: The rotating structure includes a rotating angle motor, a first motor fixing seat, a coupling, a rotating shaft fixing seat, a rotating rod and a rotating base plate. The rotating base plate is installed on the lateral moving structure. The rotating angle motor is installed on the rotating base plate through the first motor fixing seat. The rotating rod is rotatably installed on the rotating base plate through the rotating shaft fixing seat. The rotating angle motor is connected to one end of the rotating rod through a coupling. The other end of the rotating rod is connected to the flexible clamping assembly through a sound insulation sealing cover. The rotating angle motor is connected to the controller.

4. According to claim 1, the noise and abnormal sound testing device of the earphone charging box is characterized in that: The flexible clamping assembly includes a connecting base, a motor protection cover, a gripper motor, a motor mounting seat, a connecting rod assembly and a flexible gripper, one end of the motor protection cover is connected to the rotating structure through the connecting base, the other end of the motor protection cover is connected to the motor mounting seat, the gripper motor is installed on one side of the motor mounting seat, the gripper motor is connected to the threaded end of the connecting rod assembly through a thread, the longitudinal end of the connecting rod assembly is hinged to the motor mounting seat, the transverse end of the connecting rod assembly is connected to the flexible gripper, the motor mounting seat is connected to the first flexible pushing assembly, and the gripper motor is connected to a controller.

5. According to claim 4, a noise and abnormal sound testing device for an earphone charging box is characterized in that: The connecting rod assembly includes a threaded block, a connecting rod and an L-shaped connecting rod. The threaded block is connected to the gripper motor through threads, the two ends of the threaded block are hinged to the middle part of the L-shaped connecting rod through the connecting rod, the longitudinal end of the L-shaped connecting rod is hinged to the motor mounting seat, and the transverse end of the L-shaped connecting rod is connected to the flexible gripper.

6. According to claim 1, the noise and abnormal sound testing device of the earphone charging box is characterized in that: The first flexible pushing assembly includes a push rod fixing seat, a first pressure sensor and a first flexible touch portion, the push rod fixing seat, the first pressure sensor and the first flexible touch portion are connected in sequence, the push rod fixing seat is connected to the flexible clamping assembly, and the first pressure sensor is connected to the controller.

7. The noise and abnormal sound testing device for an earphone charging box according to claim 1, characterized in that: The first flexible pushing mechanism includes a second motor fixing seat, a pushing motor, a turntable, a swing rod, a second guide rail, a pushing slider, a rod end fixing piece, a push rod, a second pressure sensor and a flexible pushing base. The second motor fixing seat is installed on the frame through a flexible pushing base. The turntable is installed on the second motor fixing seat through a pushing motor. The swing end of the swing rod is rotatably installed on the turntable. The swing end is away from the center of the turntable. The telescopic end of the swing rod is hinged to the pushing slider. The second guide rail is installed on the second motor fixing seat. The pushing slider is slidably installed on the second guide rail. One end of the push rod is installed on the pushing slider through a rod end fixing piece. The second flexible touch portion is connected to the other end of the push rod through a second pressure sensor. The pushing motor and the second pressure sensor are both connected to the controller.

8. The noise and abnormal sound testing device for an earphone charging box according to claim 1, characterized in that: The sound insulation sealing cover includes a sound insulation layer, a protective cover and a sealing ring. The protective cover covers the lateral moving structure, the fixed end of the rotating structure, the fixed end of the first flexible pushing mechanism and the fixed end of the second flexible pushing mechanism respectively through the sealing ring. The sound insulation layer is installed on the inner wall of the protective cover.

9. The noise and abnormal sound testing device for an earphone charging box according to claim 1, characterized in that: The earphone charging box fixing mechanism includes a transverse adjustment plate, a longitudinal adjustment base, a guide column, a spring, a height adjustment bottom plate, an earphone charging box base and an earphone charging box locking piece. The longitudinal adjustment base is installed on the frame through the transverse adjustment plate, the lower end of the guide column is installed on the longitudinal adjustment base, the upper end of the guide column passes through the spring and abuts against the height adjustment bottom plate, the longitudinal adjustment base is provided with a height adjustment base, the height adjustment base is adjustably connected to the longitudinal adjustment base, the earphone charging box base is installed on the longitudinal adjustment base, the earphone charging box base is provided with an earphone charging box limit block, and the earphone charging box locking piece matches the earphone charging box limit.

10. The noise and abnormal sound testing device for an earphone charging box according to claim 1, characterized in that: The sound collecting mechanism includes a rod end fixing seat, a vertical support rod, a connecting piece, a transverse support rod and a sound collector. The vertical support rod is installed on the frame through the rod end fixing seat, and the sound collector is connected to the vertical support rod through the transverse support rod through the connecting piece. The sound collector matches the earphone charging box, and the sound collector is connected to the controller.

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