Abnormal sound detection equipment

Abstract

The utility model relates to the technical field of automobile part detection, and provides abnormal sound detection equipment which comprises a rack, a main shaft, a first tool assembly and a second tool assembly. Wherein the main shaft is mounted on the rack and can rotate around the axis of the main shaft relative to the rack; the first tool assembly comprises a first toggle clamp and a base, the base is installed on the main shaft and can rotate along with the main shaft, and the first toggle clamp is installed on the base; the second tool assembly comprises a second tool A and a second tool B, the second tool A is detachably mounted on the rack and used for fixing an AB column mounting part of the vehicle door limiter, the second tool B can be fixed to the base through the first toggle clamp, and the second tool B is used for fixing a door metal plate mounting part of the vehicle door limiter. Thus, detachable connection between the second tool assembly and the rack is achieved through the first tool assembly, and the abnormal sound detection equipment can be suitable for to-be-detected objects of various models by replacing the second tool assembly.

Description

TECHNICAL FIELD

[0001] The utility model relates to automobile parts detection technical field especially, relate to a abnormal sound detection equipment. BACKGROUND

[0002] The abnormal sound detection equipment of the door is the professional tool for detecting the abnormal noise (such as squeak, click, rubbing sound etc.) produced in the opening and closing or running process of the door. These devices help engineers locate the source of abnormal sound and solve problems through high-precision sensors and data analysis technology.

[0003] For the detection between the door stopper and the rotating shaft, the door needs to be installed on the detection equipment. Since different vehicle models have different door specifications, including size, weight, etc., multiple detection equipment needs to be matched one by one. In the same space, only one detection object can be detected at the same time to avoid the mutual influence of the noise generated when multiple devices are used simultaneously, thus causing most of the detection equipment to be idle, resulting in resource waste.

[0004] Therefore, there is an urgent need for an abnormal sound detection equipment to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an abnormal sound detection equipment that can be applied to various types of objects to be detected.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The abnormal sound detection equipment comprises:

[0008] A rack;

[0009] A main shaft installed on the rack and capable of rotating around the axis of the main shaft relative to the rack;

[0010] A first tooling assembly comprising a first elbow clamp and a base, the base being installed on the main shaft and capable of rotating with the main shaft, and the first elbow clamp being installed on the base;

[0011] A second tooling assembly comprising a second tooling A and a second tooling B, the second tooling A being detachably installed on the rack for fixing the AB column mounting portion of the door stopper, and the second tooling B being capable of being fixed to the base through the first elbow clamp, and the second tooling B being used for fixing the door sheet metal mounting portion of the door stopper.

[0012] As a preferred technical solution of the above abnormal sound detection equipment, the second tooling A comprises:

[0013] A first base installed on the rack;

[0014] A positioning pin is fixed to the first base, and is used to be inserted into the opening of the AB column mounting part;

[0015] A first clamping arm is hinged to the first base, and can clamp the AB column mounting part with the first base.

[0016] As a preferred technical solution of the above-mentioned abnormal sound detection device, the second tool B comprises:

[0017] A first clamping plate is capable of being fixed to the base by the first elbow clamp;

[0018] A second clamping plate is capable of adjusting the distance from the first clamping plate through the telescopic mechanism, and the door sheet metal mounting part can be clamped between the first clamping plate and the second clamping plate.

[0019] As a preferred technical solution of the above-mentioned abnormal sound detection device, a torque adjusting assembly is further included, which comprises a servo motor, the servo motor is installed on the rack, and the servo motor is capable of being driven by the main shaft.

[0020] As a preferred technical solution of the above-mentioned abnormal sound detection device, the rack comprises a sound insulation plate, the servo motor is located on the side of the sound insulation plate opposite to the main shaft, and is capable of being driven by the main shaft through a transmission mechanism.

[0021] As a preferred technical solution of the above-mentioned abnormal sound detection device, the torque adjusting assembly further comprises a clutch mechanism, and the servo motor is capable of being selectively driven by the main shaft through the clutch mechanism.

[0022] As a preferred technical solution of the above-mentioned abnormal sound detection device, an encoder is installed on the main shaft, which is used to record the angle information of the rotation of the main shaft.

[0023] As a preferred technical solution of the above-mentioned abnormal sound detection device, the main shaft is vertically placed, and the base is provided with a supporting platform, which supports the second tool B from below.

[0024] As a preferred technical solution of the above-mentioned abnormal sound detection device, a hand lever is further included, one end of the hand lever is hinged to the base to switch between a storage position and a working position, when the hand lever is in the storage position, the other end of the hand lever is close to the main shaft in the direction perpendicular to the axis of the main shaft, and when the hand lever is in the working position, the other end of the hand lever is away from the main shaft in the direction perpendicular to the axis of the main shaft.

[0025] As a preferred technical scheme of the above-mentioned abnormal sound detection device, a code scanner is further included, which is installed on the rack and can identify the code mark of the door stopper.

[0026] The utility model discloses beneficial effects:

[0027] The utility model provides a kind of abnormal sound detection equipment, including rack, main shaft, first tooling assembly and second tooling assembly. Among them, main shaft is installed on rack and can revolve around the axis of main shaft relative to rack;First tooling assembly includes first elbow clamp and pedestal, pedestal is installed on main shaft and can rotate with main shaft, and first elbow clamp is installed on pedestal;Second tooling assembly includes second tooling A and second tooling B, second tooling A is detachably installed on rack, for fixing the AB column installation part of door stopper, and second tooling B can be fixed to pedestal by first elbow clamp, and second tooling B is used to fix the door sheet metal installation part of door stopper.

[0028] Thus, in use, the AB column installation part of door stopper is installed on rack by second tooling A, and second tooling A is used to simulate AB column of vehicle, and the door sheet metal installation part of door stopper is installed on main shaft by second tooling B, and main shaft is used to simulate the rotating shaft connecting door and vehicle frame. By the detachable connection of second tooling A and rack, and the detachable connection of second tooling B and main shaft realized by first tooling assembly, user can replace corresponding second tooling assembly according to the detection object of this time, to improve the general applicability of abnormal sound detection equipment to different models of detection objects. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the description of the embodiments of the utility model will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the contents of the embodiments of the utility model and these drawings without creative labor for those skilled in the art.

[0030] Figure 1 It is the front view of the abnormal sound detection equipment (except second tooling assembly) provided by the embodiments of the utility model.

[0031] Figure 2 It is the front view of the abnormal sound detection equipment provided by the embodiments of the utility model.

[0032] Figure 3 It is the side view of the abnormal sound detection equipment provided by the embodiments of the utility model.

[0033] Figure 4 It is the assembly schematic view of the abnormal sound detection equipment and detection object provided by the embodiments of the utility model.

[0034] Figure 5 is a structural schematic view of the first tooling assembly provided by the embodiment of the utility model, and

[0035] Figure 6 is a structural schematic view of the second tooling A provided by the embodiment of the utility model, and

[0036] Figure 7 is a structural schematic view of the second tooling B provided by the embodiment of the utility model, and

[0037] Figure 8 is an assembly schematic view of the first tooling assembly and the second tooling B provided by the embodiment of the utility model, and

[0038] Figure 9 is a structural schematic view of the prior door stopper, and

[0039] Figure 10 is an assembly schematic view of the second tooling B and the door stopper provided by the embodiment of the utility model.

[0040] In the drawing,

[0041] 1, abnormal sound detection equipment;21, door stopper;211, AB column installation part;212, door sheet metal installation part;213, telescopic part;22, ECU;

[0042] 100, rack;110, sound insulation board;120, ECU support;

[0043] 200, main shaft;

[0044] 300, first tooling assembly;310, first elbow clamp;320, base;321, support platform;322, support bridge;

[0045] 410, second tooling A;411, first base;412, positioning pin;413, first clamping arm;414, first swing arm;415, first connecting piece;416, first hinged shaft A;417, first hinged shaft B;418, first hinged shaft C;419, first hinged shaft D;

[0046] 420, second tooling B;421, first clamping plate;422, second clamping plate;423, telescopic mechanism;4231, second base;4232, first connecting rod;4233, second connecting rod;42331, first clamping block;42332, second clamping block;4234, second connecting piece;4235, second swing arm;4236, second hinged shaft A;4237, second hinged shaft B;4238, second hinged shaft C;424, guide rod;

[0047] 500, torque adjusting assembly; 510, servo motor; 520, transmission mechanism; 521, driving gear; 522, driven gear; 523, belt; 530, clutch mechanism; 540, speed reducer;

[0048] 600, encoder;

[0049] 700, hand lever;

[0050] 800, code scanner; 900, determination button. DETAILED DESCRIPTION

[0051] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model and are not limited to the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for ease of description, not all the structures.

[0052] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0053] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0054] In the description of the embodiment, the terms "up", "down", "right", etc. orientation or position relationship is based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in description, and have no special meaning.

[0055] As Figures 1 to 10The utility model provides a kind of abnormal sound detection equipment 1, including rack 100, main shaft 200, first tooling assembly 300 and second tooling assembly. Among them, main shaft 200 is installed to rack 100 and can revolve around the axis of main shaft 200 relative to rack 100;First tooling assembly 300 includes first elbow clamp 310 and base 320, base 320 is installed to main shaft 200 and can rotate with main shaft 200, and first elbow clamp 310 is installed to base 320;Second tooling assembly includes second tooling A 410 and second tooling B 420, second tooling A 410 is detachably installed to rack 100, for fixing the AB column installation part 211 of door limiter 21, and second tooling B 420 can be fixed to base 320 by first elbow clamp 310, and second tooling B 420 is used to fix the door sheet metal installation part 212 of door limiter 21.

[0056] Therefore, in use, the AB column installation part 211 of door limiter 21 is installed to rack 100 by second tooling A 410, and second tooling A 410 is used to simulate the AB column of vehicle, and the door sheet metal installation part 212 of door limiter 21 is installed to main shaft 200 by second tooling B 420, and main shaft 200 is used to simulate the rotating shaft connected with door and vehicle frame. By detachable connection of second tooling A 410 and rack 100, and detachable connection of second tooling B 420 and main shaft 200 by first tooling assembly 300, the user can replace the corresponding second tooling assembly according to the detection object of this time, to improve the versatility of abnormal sound detection equipment 1 for different models of detection objects.

[0057] It should be noted that the first elbow clamp 310 is a existing structure, and its specific connection mode and transmission mode are not repeated here.

[0058] Further, the abnormal sound detection equipment 1 is configured with multiple sets of second tooling assemblies, wherein the specifications of the second tooling A 410 and / or the second tooling B 420 in at least two sets of second tooling assemblies are different, for adapting to different models of detection objects.

[0059] Further, a plurality of mounting positions A are provided on the rack 100, and the plurality of mounting positions A are distributed in the length direction and / or the width direction of the rack 100, and the second tooling A 410 can be selectively fixed to one of the mounting positions A according to the detection object.

[0060] Further, a plurality of mounting positions B are provided on the main shaft 200, and the plurality of mounting positions B are distributed on the main shaft 200, and the base 320 can be selectively fixed to one of the mounting positions B according to the detection object.

[0061] Further, the base 320 is provided with a plurality of mounting positions C, which are distributed along the length and / or width of the base 320, and the second tool B420 can be selectively fixed to one of the mounting positions C.

[0062] Optionally, the second tool A410 comprises a first base 411, a positioning pin 412, and a first clamping arm 413. The first base 411 is mounted to the rack 100. The positioning pin 412 is fixed to the first base 411 and is used to be inserted into the hole of the AB column mounting portion 211. The first clamping arm 413 is hinged to the first base 411 and can clamp the AB column mounting portion 211 together with the first base 411.

[0063] Illustratively, the second tool A410 is an elbow clamping structure, which comprises a first base 411, a positioning pin 412, a first clamping arm 413, a first swing arm 414, and a first connecting piece 415. The first base 411 is mounted to the rack 100 by a threaded fastener. The positioning pin 412 is fixed to the side of the first base 411 opposite to the rack 100. The first clamping arm 413 is hinged to the first base 411 by a first hinge shaft A416. The first clamping arm 413 is hinged to the first swing arm 414 by a first hinge shaft B417. The first swing arm 414 is used for user operation. The first swing arm 414 is hinged to the first connecting piece 415 by a first hinge shaft C418. The first connecting piece 415 is hinged to the first base 411 by a first hinge shaft D419. The first hinge shaft A416, the first hinge shaft B417, the first hinge shaft C418, and the first hinge shaft D419 are parallel to each other. When in use, the first swing arm 414 is rotated clockwise. The first swing arm 414 drives the first connecting piece 415 to rotate counterclockwise around the first hinge shaft D419 relative to the first base 411 through the first hinge shaft C418. At the same time, the first swing arm 414 drives the first clamping arm 413 to rotate counterclockwise around the first hinge shaft A416 relative to the first base 411 through the first hinge shaft B417. At this time, the other end of the first clamping arm 413 is close to the first base 411, and the clamping of the first clamping arm 413 and the first base 411 to the AB column mounting portion 211 is completed. Conversely, the first swing arm 414 is rotated counterclockwise, which can drive the other end of the first clamping arm 413 to move away from the base through a series of linkages, so as to insert the hole of the AB column mounting portion 211 into the positioning pin 412. In this way, the positioning pin 412 can be positioned relative to the AB column mounting portion 211, and the AB column mounting portion 211 is clamped by swinging the first clamping arm 413, which is simple to operate.

[0064] Further, when the first clamping arm 413 clamps the AB column mounting portion 211 with the first base 411, the first hinge shaft B 417, the first hinge shaft C 418 and the first hinge shaft D 419 are located on the same straight line in the axial projection of the first hinge shaft A 416, so as to realize the self-locking of the first clamping arm 413, that is, when the first clamping arm 413 has a tendency to rotate relative to the first base 411 in the clockwise direction, due to the fact that the above three hinge shafts are located on the same straight line, a dead point is formed, so that the force of the first clamping arm 413 is difficult to drive the first swing arm 414 to rotate.

[0065] Further, the end of the first clamping arm 413 is provided with a telescopic adjusting piece for clamping the AB column mounting portion 211, and the telescopic adjusting piece can adjust the distance between the first base 411, so that the second tool A 410 can be suitable for AB column mounting portions 211 of different thickness sizes.

[0066] Optionally, the second tool B 420 comprises a first clamping plate 421 and a second clamping plate 422. The first elbow clamp 310 can fix the first clamping plate 421 to the base 320, and the second clamping plate 422 adjusts the distance from the first clamping plate 421 through the telescopic mechanism 423, and the door sheet metal mounting portion 212 can be clamped between the first clamping plate 421 and the second clamping plate 422.

[0067] For example, as shown in Figure 7 The telescopic mechanism 423 comprises a second base 4231, a first connecting rod 4232, a second connecting rod 4233, a second connecting piece 4234 and a second swing arm 4235. The second base 4231 is fixedly installed on the first clamping plate 421, the first end of the first connecting rod 4232 is fixed to the second clamping plate 422, the tail end of the first connecting rod 4232 is connected to the first end of the second connecting rod 4233, the tail end of the second connecting rod 4233 is hinged to the second swing arm 4235 through the second hinge shaft A 4236, the second swing arm 4235 is hinged to the second connecting piece 4234 through the second hinge shaft B 4237, the second connecting piece 4234 is hinged to the second base 4231 through the second hinge shaft C 4238, and the second hinge shaft A 4236, the second hinge shaft B 4237 and the second hinge shaft C 4238 are arranged in parallel and perpendicular to the axial direction of the first connecting rod 4232 and the second connecting rod 4233.

[0068] In use, when the second swing arm 4235 is in the first position, the distance between the first clamping plate 421 and the second clamping plate 422 is the smallest, for clamping the door panel mounting portion 212. When the second swing arm 4235 rotates clockwise around the second hinge axis A 4236, the second swing arm 4235 drives the second connecting member 4234 to rotate counterclockwise around the second hinge axis C 4238 through the second hinge axis B 4237, and since the second connecting member 4234 limits the displacement range of the second swing arm 4235 relative to the second base 4231, the second swing arm 4235 drives the second connecting rod 4233 and the first connecting rod 4232 to move along the axis of the first connecting rod 4232 through the second hinge axis A 4236, so that the second clamping plate 422 moves away from the first clamping plate 421, for releasing the clamped door panel mounting portion 212, facilitating the installation and removal of the door panel mounting portion 212. When the second swing arm 4235 is in the second position, the distance between the first clamping plate 421 and the second clamping plate 422 is the largest. When the door panel mounting portion 212 needs to be clamped, the second swing arm 4235 rotates counterclockwise around the second hinge axis A 4236 from the second position, and the second swing arm 4235 drives the second connecting member 4234 to rotate clockwise around the second hinge axis C 4238 relative to the second base 4231 through the second hinge axis B 4237, and the second swing arm 4235 drives the first connecting rod 4232 and the second connecting rod 4233 through the second hinge axis A 4236, pulling the second clamping plate 422 to move towards the first clamping plate 421, until the second swing arm 4235 moves to the first position, and the first clamping plate 421 and the second clamping plate 422 complete the clamping of the door panel mounting portion 212.

[0069] Further, when the second swing arm 4235 is in the first position, the second hinge axis A 4236, the second hinge axis B 4237 and the second hinge axis C 4238 are located on the same straight line in the axial projection along the second hinge axis A 4236, so that when the door panel mounting portion 212 is fixed by the first clamping plate 421 and the second clamping plate 422, the door panel mounting portion 212 exerts a reverse force on the second clamping plate 422, making the second clamping plate 422 have a tendency to move away from the first clamping plate 421, and when the second clamping plate 422 drives the second swing arm 4235 to rotate through the first connecting rod 4232, the second connecting rod 4233 and the second hinge axis A 4236, since at this time, the second hinge axis A 4236, the second hinge axis B 4237 and the second hinge axis C 4238 are located on the same straight line in the axial projection along the second hinge axis A 4236, a dead point is formed, causing the second swing arm 4235 to be self-locked and unable to rotate under the drive of the second clamping plate 422.

[0070] Further, the tail end of the first connecting rod 4232 is provided with a T-shaped groove, the T-shaped groove includes a large diameter section and a small diameter section, the small diameter section is used for connecting the large diameter section and the tail end surface of the first connecting rod 4232, and the head end of the second connecting rod 4233 is provided with a corresponding T-shaped structure for plug-in connection with the T-shaped groove. For example, the first connecting rod 4232 and the second connecting rod 4233 are plug-in connected in the direction perpendicular to the axial direction of the first connecting rod 4232, and are locked in the axial direction of the first connecting rod 4232, so as to facilitate disassembly of the first connecting rod 4232 and the second connecting rod 4233. Further, the head end of the second connecting rod 4233 is in the shape of an I-beam, the I-beam includes a first clamping block 42331 and a second clamping block 42332 which are distributed along the axial direction of the first connecting rod 4232 and are relatively fixed, after the head end of the second connecting rod 4233 is connected with the tail end of the first connecting rod 4232, the first clamping block 42331 is located outside the T-shaped groove and can abut against the tail end surface of the first connecting rod 4232, and the second clamping block 42332 is inserted into the large diameter section of the T-shaped groove. Further, the head end of the second connecting rod 4233 is in the shape of a threaded structure, the first clamping block 42331 is threadedly connected with the second connecting rod 4233, so as to adjust the distance between the first clamping block 42331 and the second clamping block 42332, and thus the close connection between the first connecting rod 4232 and the second connecting rod 4233 can be maintained.

[0071] Further, the second base 4231 is a gantry mechanism, and the second connecting rod 4233 is installed at the center position of the gantry mechanism, so that the stability of the second connecting rod 4233 can be maintained.

[0072] Further, the first clamping plate 421 is provided with a first limiting hole, and the first connecting rod 4232 is inserted into the first limiting hole, so that the displacement direction of the first connecting rod 4232 relative to the first clamping plate 421 can be regulated through plug-in limiting between the first connecting rod 4232 and the first limiting hole.

[0073] Further, the second tool B 420 further includes a guide rod 424, the guide rod 424 is fixed with one of the first clamping plate 421 and the second clamping plate 422 and is inserted into the other, so as to regulate the relative displacement direction of the first clamping plate 421 and the second clamping plate 422.

[0074] Optionally, the abnormal sound detection device 1 further includes a torque adjusting assembly 500, the torque adjusting assembly 500 includes a servo motor 510, the servo motor 510 is installed on the rack 100, and the servo motor 510 can be in transmission with the main shaft 200.

[0075] Due to the different weights of the doors, the load of the door on the main shaft 200 is different, which results in different forward torques required for rotating the main shaft 200, that is, the forward torque required for rotating the main shaft 200 is positively correlated with the weight of the door stopper 21. In order to simulate the doors with different weights, the servo motor 510 is adjusted to apply different reverse torques to the main shaft 200, the reverse torque is positively correlated with the weight of the simulated door, and the direction of the reverse torque is opposite to that of the forward torque, that is, the reverse torque acts as resistance to rotating the main shaft 200.

[0076] In this way, by setting the torque adjusting assembly 500 to simulate the reverse torque of the doors with different weights when rotating, the metal structure of the door can be omitted during the experiment, the volume of the detection object is reduced, and the area requirement of the detection site is saved.

[0077] Further, the servo motor 510 drives the main shaft 200 through the speed reducer 540.

[0078] Optionally, the rack 100 comprises a soundproof board 110, the servo motor 510 is located on the side of the soundproof board 110 opposite to the main shaft 200 and can drive the main shaft 200 through the transmission mechanism 520.

[0079] For example, when the servo motor 510 is started, sound will be generated, which is noise in this experiment and affects the noise generated when the main shaft 200 rotates. Therefore, in order to improve the experimental effect, noise reduction processing is performed, the servo motor 510 is installed on the side of the soundproof board 110 opposite to the main shaft 200, and the sound generated when the servo motor 510 is started is reduced by the soundproof board 110.

[0080] For example, the transmission mechanism 520 comprises a driving gear 521, a driven gear 522 and a belt 523. The driving gear 521 is coaxially installed on the output shaft of the servo motor 510, and the driven gear 522 can be fixed opposite to the main shaft 200 and coaxially arranged. The belt 523 connects the driving gear 521 and the driven gear 522, when the servo motor 510 is started, the driving gear 521 drives the driven gear 522 to rotate through the belt 523, and then applies a torque to the main shaft 200.

[0081] Optionally, the torque adjusting assembly 500 further comprises a clutch mechanism 530, and the servo motor 510 can selectively drive the main shaft 200 through the clutch mechanism 530.

[0082] For example, the transmission mechanism 520 and the main shaft 200 can be connected through the clutch mechanism 530. The clutch mechanism 530 includes a first clutch member and a second clutch member. The first clutch member is installed on the transmission mechanism 520, and the second clutch member is installed on the main shaft 200. The first clutch member and the second clutch member include a disconnection state and a transmission state. When the servo motor 510 needs to apply torque to the main shaft 200, the first clutch member and the second clutch member are in the transmission state. In addition, the first clutch member and the second clutch member are in the disconnection state, which blocks the transmission between the main shaft 200 and the servo motor 510. Thus, when the main shaft 200 rotates, the main shaft 200 does not drive the output shaft of the servo motor 510 to rotate, which avoids the noise caused by the meshing of the gears in the servo motor 510.

[0083] Further, the second clutch member can be integrally formed with the main shaft 200.

[0084] Alternatively, the output shaft of the servo motor 510 can be connected with the main shaft 200 through the clutch mechanism 530.

[0085] Alternatively, the output shaft of the servo motor 510 can be connected with the transmission mechanism 520 through the clutch mechanism 530. The clutch mechanism 530 can control the on-off of the transmission route between the servo motor 510 and the transmission mechanism 520.

[0086] For example, the clutch mechanism 530 is installed between the transmission mechanism 520 and the main shaft 200. In order to ensure the transmission reliability between the first clutch member and the second clutch member, the first clutch member and the second clutch member are connected through a key and groove structure. The insertion direction of the key and the groove is parallel to the axial direction of the main shaft 200.

[0087] Optionally, the main shaft 200 is provided with an encoder 600, which is used to record the angle information of the rotation of the main shaft 200. Thus, when the abnormal noise occurs, the angle of the rotation of the main shaft 200 at this time can be obtained through the encoder 600. In addition, the first clutch member and the second clutch member can be aligned through the angle information provided by the encoder 600, so as to be inserted. Specifically, when the first clutch member and the second clutch member are in the disconnection state, the rotation of the main shaft 200 drives the rotation of the second clutch member. The encoder 600 can obtain the angle of the rotation of the main shaft 200. The encoder 600 sends the angle signal to the servo motor 510. When the servo motor 510 needs to provide torque for the main shaft 200, the servo motor 510 can drive the first clutch member to rotate to the corresponding angle according to the signal provided by the encoder 600. Thus, the key and groove structure of the first clutch member and the second clutch member can be aligned. Then, the first clutch member and the second clutch member are switched to the transmission state.

[0088] It should be noted that the encoder 600 obtains the rotation angle of the main shaft 200, which is a prior art and will not be described here.

[0089] It should be noted that the communication connection between the encoder 600 and the servo motor 510 is a prior art, which will not be described here.

[0090] It should be noted that the connection mode of the clutch is a prior art, which will not be described here.

[0091] Optionally, the main shaft 200 is vertically placed, and the base 320 is provided with a support platform 321 supporting the second tool B420 below. In order to simulate the actual use scene of the vehicle, that is, the rotation shaft of the door and the main shell body is vertically arranged. The second tool B420 is used to fix the door sheet metal mounting part 212 to the main shaft 200, and the load of the second tool B420 is relatively large. In order to keep the relative fixation of the second tool B420 and the main shaft 200, the base 320 supports the second tool B420 below by arranging the support platform 321, so as to support the second tool B420 in the direction of gravity.

[0092] Illustratively, the base 320 includes a support bridge 322 and two support platforms 321, the two support platforms 321 are arranged at intervals along the axial direction of the main shaft 200, and the support bridge 322 connects the two support platforms 321 and forms a groove, the second tool B420 is placed in the groove, and the two support platforms 321 are mainly responsible for limiting the movement of the second tool B420 relative to the main shaft 200 along the axial direction of the main shaft 200. The first elbow clamp 310 is used to fix the second tool B420 in the groove and limit the second tool B420 from exiting the groove. Further, the first elbow clamp 310 is provided with two, respectively installed on the two support platforms 321.

[0093] Optionally, the abnormal sound detection device 1 further includes a hand lever 700, one end of the hand lever 700 is hinged to the base 320 to switch between the storage position and the operation position, when the hand lever 700 is in the storage position, the other end of the hand lever 700 is close to the main shaft 200 in the direction perpendicular to the axis of the main shaft 200, and when the hand lever 700 is in the operation position, the other end of the hand lever 700 is away from the main shaft 200 in the direction perpendicular to the axis of the main shaft 200.

[0094] Illustratively, the hand lever 700 is used for the user to apply force to the main shaft 200 to drive the main shaft 200 to rotate, thereby simulating the scene of manually opening and closing the door stopper 21 in the actual use of the vehicle. The hand lever 700 is hinged to the base 320 to switch between the storage position and the operation position relative to the base 320. When the hand lever 700 is in the storage position, the included angle between the hand lever 700 and the main shaft 200 is α, and when the hand lever 700 is in the operation position, the included angle between the hand lever 700 and the main shaft 200 is β, which satisfies α<β.

[0095] Preferably, a = 0°, that is, when the hand lever 700 is in its storage position, the hand lever 700 is parallel to the main shaft 200; β = 90°, that is, when the hand lever 700 is in its operating position, the hand lever 700 is perpendicular to the main shaft 200.

[0096] Optionally, the abnormal sound detection device 1 further comprises a code scanner 800, the code scanner 800 is installed on the rack 100, and the code scanner 800 can identify the code mark of the door stop 21.

[0097] Illustratively, the abnormal sound detection device 1 is provided with a control unit, the code scanner 800 is in communication connection with the control unit, the control unit obtains the code mark of the test product through the code scanner 800, and the control unit is provided with a corresponding relationship table of the code mark and the product model, and can establish a test record for the object of this test, that is, whether the object produces abnormal sound when rotating, and at what angle the object produces abnormal sound, etc. This makes the abnormal sound detection device 1 can continuously test multiple models of products, and the test data is correspondingly derived and the test data is one-to-one corresponding to the test object.

[0098] Further, the control unit is also in communication connection with the servo motor 510, and the control unit can identify the weight characteristics of the test object after obtaining the model of the test object, and convert the weight characteristics into the reverse torque generated by the test object when the door rotates, and transmit the signal of the reverse torque to the servo motor 510.

[0099] Taking the detection of the electrically operated opening and closing door structure of the vehicle as an example.

[0100] The electrically operated opening and closing door structure comprises an electronic controller, that is, an ECU 22 and a door stop 21, the door stop 21 comprises a telescopic part 213, an AB column mounting part 211 and a door sheet metal mounting part 212, the AB column mounting part 211 is used to be fixed with the AB column of the vehicle frame, the door sheet metal mounting part 212 is used to be fixed with the door sheet metal, one end of the telescopic part 213 is hinged with the AB column mounting part 211, the other end of the telescopic part 213 is hinged with the door sheet metal mounting part 212, and the telescopic part 213 can be telescopic along its own axis, and the ECU 22 can adjust the turning angle of the AB column mounting part 211 and the door sheet metal mounting part 212 by controlling the extension length of the telescopic part 213. Since the AB column mounting part 211 is fixed with the rack 100, and the door sheet metal mounting part 212 is fixed with the main shaft 200, when the extension length of the telescopic part 213 changes, the main shaft 200 can be driven to rotate by a corresponding angle relative to the rack 100, and the main shaft 200 is used to simulate the connecting shaft of the door and the vehicle frame.

[0101] Optionally, the abnormal sound detection device 1 further comprises an ECU bracket 120 mounted on the rack 100 for mounting an electronic controller adapted to the door stopper 21. Exemplarily, the ECU 22 is provided with a connecting lug on its shell, and the ECU bracket 120 fixes the connecting lug of the ECU 22 by a latch, thereby fixing the ECU 22 as a whole.

[0102] Specifically, the use process of the abnormal sound detection device 1 is as follows:

[0103] S0, in the initial state, the clutch mechanism 530 is in the disconnected state, the main shaft 200 and the servo motor 510 do not establish a transmission relationship, and the hand lever 700 is in its storage state.

[0104] S10, use the code scanner 800 to obtain the coded mark of the detection object, the control unit establishes a detection record for the object, and sends the reverse torque signal formed by the weight of the object to the servo motor 510, and matches the second tool assembly adapted to the detection object, and completes the assembly of the second tool assembly and the rack 100.

[0105] S20, complete the assembly of the detection object and the rack 100, that is, install the AB column mounting part 211 of the detection object on the second tool A 410, install the door sheet metal mounting part 212 of the detection object on the second tool B 420, and install the ECU 22 on the ECU bracket 120.

[0106] S31, the ECU 22 controls the door stopper 21 to start, and the door stopper 21 drives the main shaft 200 to rotate relative to the rack 100 to the first limit position, and the first limit position is the completely closed position of the simulated door and the main shell of the vehicle frame. After moving to the position, the ECU 22 sends a position signal to the control unit, and the control unit commands the encoder 600 to record this position as the initial position.

[0107] S32, the ECU 22 controls the door stopper 21 to start, and rotates from the first limit position to the intermediate position, and hovers at the intermediate position.

[0108] Preferably, the intermediate position is the midpoint between the first limit position and the second limit position, and the second limit position is the completely open position of the simulated door and the main shell of the vehicle frame.

[0109] S40, the hand lever 700 is switched from the storage position to the operation position, the ECU 22 drives the door stopper 21 to start, and the main shaft 200 can be moved to the first limit position or the second limit position. The user manually intervenes the rotation of the main shaft 200 through the hand lever 700, that is, the main shaft 200 is subjected to the first force of the door stopper 21 and the second force of the user at the same time, and the directions of the first force and the second force are consistent. It should be noted that the ECU 22 or the control unit can prompt the rotation direction of the main shaft 200 at this time through the display unit.

[0110] S50, the hand lever 700 is switched from the operation position to the storage position, the servo motor 510 drives the first clutch to rotate to align with the second clutch according to the position information of the main shaft 200 recorded by the encoder 600 at this time, the first clutch and the second clutch are switched to the transmission state, the ECU 22 commands the door stopper 21 to drive the rotation direction of the main shaft 200 to be positive, and the torque applied is positive torque. The torque applied to the main shaft 200 by the servo motor 510 is reverse torque, the directions of the positive torque and the reverse torque are opposite, and the reverse torque is always smaller than the positive torque. The main shaft 200 is moved to the first limit position and the second limit position under the joint action of the servo motor 510 and the door stopper 21.

[0111] In the process of executing S40 and S50, the user judges whether an abnormal sound is generated. If an abnormal sound is generated, the position where the abnormal sound is generated is recorded.

[0112] Preferably, the abnormal sound detection device further comprises a judgment button 900, which is in communication connection with the control unit. When the door stopper 21 generates an abnormal sound, the user triggers the judgment button 900, and the control unit obtains the position information of the main shaft 200 recorded by the encoder 600, that is, the angle of rotation of the main shaft 200 relative to the first limit position at this time.

[0113] S60, stop detection, and the control unit packs and enters the detection object, detection time and detection result into the database.

[0114] S70, the ECU 22 drives the door stopper 21 to expand to the delivery state according to requirements.

[0115] It should be noted that the delivery state is the state required when the door stopper 21 is assembled with the vehicle shell frame.

[0116] S80, the door stopper 21 in the delivery state is removed from the abnormal sound detection device 1.

[0117] Further, the abnormal sound detection device further comprises a vibration detection device, a sound detection device, etc. for judging noise.

[0118] In addition, the above is only the preferred embodiment of the present application and the applied technical principle. The person skilled in the art can understand that the present application is not limited to the specific embodiments described herein, and various obvious changes, re-adjustments and substitutions can be made by the person skilled in the art without departing from the protection scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and more other equivalent embodiments can be included without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A squeal detection device, characterized by, The utility model relates to a torque adjusting device for door check arm, comprising: a rack (100); a main shaft (200) installed on the rack (100) and capable of rotating around the axis of the main shaft (200) relative to the rack (100); a first tooling assembly (300) comprising a first elbow clamp (310) and a base (320), the base (320) being installed on the main shaft (200) and capable of rotating with the main shaft (200), the first elbow clamp (310) being installed on the base (320); a second tooling assembly comprising a second tooling A (410) and a second tooling B (420), the second tooling A (410) being detachably installed on the rack (100) for fixing the AB column mounting portion (211) of the door check arm (21), the second tooling B (420) being capable of being fixed on the base (320) by the first elbow clamp (310), the second tooling B (420) being used for fixing the door panel mounting portion (212) of the door check arm (21).

2. The squeal detection device of claim 1, wherein The second tooling A (410) comprises: a first base (411) installed on the rack (100); a positioning pin (412) fixed on the first base (411), the positioning pin (412) being used for being inserted into the opening of the AB column mounting portion (211); a first clamping arm (413) hinged to the first base (411) and capable of clamping the AB column mounting portion (211) with the first base (411).

3. The squeal detection device of claim 1, wherein The second tooling B (420) comprises: a first clamping plate (421) capable of being fixed on the base (320) by the first elbow clamp (310); a second clamping plate (422) capable of adjusting the distance from the first clamping plate (421) by a telescopic mechanism (423), the door panel mounting portion (212) being capable of being clamped between the first clamping plate (421) and the second clamping plate (422).

4. The squeal detection apparatus of claim 1, wherein Further comprising a torque adjusting assembly (500) comprising a servo motor (510) installed on the rack (100), the servo motor (510) being capable of being driven by the main shaft (200).

5. The squeal detection device of claim 4, wherein The rack (100) comprises a soundproof board (110), the servo motor (510) being located on the side of the soundproof board (110) opposite to the main shaft (200) and capable of being driven by the main shaft (200) through a transmission mechanism (520).

6. The squeal detection device of claim 4, wherein The torque adjusting assembly (500) further comprises a clutch mechanism (530), the servo motor (510) being capable of being selectively driven by the main shaft (200) through the clutch mechanism (530).

7. The squeal detection device of claim 6, wherein The main shaft (200) is installed with an encoder (600) for recording the angle information of the rotation of the main shaft (200).

8. The squeal detection apparatus of claim 1, wherein The main shaft (200) is vertically placed, and the base (320) is provided with a support platform (321) supporting the second tool B (420) below.

9. The squeal detection device of any one of claims 1-8, wherein, A hand lever (700) is further included, one end of the hand lever (700) being hinged to the base (320) to switch between a storage position and a working position, when the hand lever (700) is in the storage position, the other end of the hand lever (700) is close to the main shaft (200) in a direction perpendicular to the axis of the main shaft (200), and when the hand lever (700) is in the working position, the other end of the hand lever (700) is away from the main shaft (200) in a direction perpendicular to the axis of the main shaft (200).

10. A squeal detection device according to any one of claims 1-8, characterized in that A code scanner (800) is further included, the code scanner (800) being installed on the rack (100), and the code scanner (800) being capable of identifying the code mark of the door stopper (21).

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