Abnormal sound detection mechanism for actuator

Abstract

The utility model discloses an actuator abnormal sound detection mechanism which comprises a machine table, a first driving assembly, a second driving assembly, a connector, a sensor, a detection piece and a workpiece seat, the workpiece seat is arranged on the machine table, and the first driving assembly and the second driving assembly are arranged on the machine table and located on the side edge of the workpiece seat; the detection piece is arranged on the first driving assembly through the sensor, the first driving assembly is used for controlling the detection piece to move to the workpiece seat, and the detection piece makes contact with the surface of the workpiece; the connector is arranged on the second driving assembly, and the connector is electrically connected with the workpiece through horizontal movement of the second driving assembly; during detection, a sensor is used for detecting workpiece surface vibration and environment sound changes. According to the utility model, vibration signals and sound signals are simultaneously acquired through the sensor, the abnormal sound detection of the actuator is realized, the detection cost is greatly reduced, and meanwhile, the detection accuracy can be ensured.

Description

Technical Field

[0001] The utility model relates to the field of abnormal sound detection, in particular to an abnormal sound detection mechanism for an actuator. Background Art

[0002] Actuators are driving mechanisms, and their counterparts are driven by gears, screws, and other mechanisms. Depending on product parameter requirements, products must be tested for abnormal noise. Existing testing methods require the construction of a soundproof room and sound collection within it. This testing approach places high demands on factory layout and environment, requiring large test stations and limiting production line layout. Utility Model Content

[0003] In view of the defects of the above-mentioned prior art, the main purpose of the present invention is to overcome the shortcomings of the prior art and discloses an actuator abnormal sound detection mechanism, including a machine platform, a first drive component, a second drive component, a connector, a sensor, a detection piece and a workpiece seat, the workpiece seat is arranged on the machine platform, the first drive component and the second drive component are arranged on the machine platform, and are located on the side of the workpiece seat; the detection piece is arranged on the first drive component through a sensor, and the first drive component is used to control the detection piece to move to the workpiece seat, and make the detection piece contact with the surface of the workpiece; the connector is arranged on the second drive component, and the second drive component is used to move horizontally to electrically connect the connector to the workpiece; during detection, the sensor is used to detect the vibration of the workpiece surface and the change of environmental sound.

[0004] Furthermore, the first driving assembly includes a first cylinder, a second cylinder and a mounting plate, the first cylinder is arranged on the machine table, the second cylinder is arranged on the first cylinder, the mounting plate is arranged on the second cylinder, and the sensor is arranged on the mounting plate. The first cylinder is used to drive the sensor to move horizontally above the workpiece, and the second cylinder is used to drive the sensor to move toward the workpiece.

[0005] Furthermore, the first cylinder and the second cylinder are guide rail slide cylinders.

[0006] Furthermore, the second driving assembly includes a third cylinder, the connector is arranged on the third cylinder, and the third cylinder is used to drive the connector to move horizontally and connect with the workpiece.

[0007] Furthermore, the second drive assembly also includes a limit plate, a fixed block and a limit block, the limit plate is arranged on the third cylinder, the fixed block is arranged in the moving direction of the limit plate, and the limit block is threadedly engaged with the fixed block to adjust the extension position of the connector.

[0008] Furthermore, the second driving assembly further includes a buffer rod, and the buffer rod acts on the limiting plate.

[0009] Furthermore, the first driving assembly and the second driving assembly are respectively installed on the machine platform through adjustment assemblies.

[0010] Furthermore, the adjustment component is a screw slide.

[0011] Furthermore, the detection member is a metal flat plate, and the metal flat plate is connected to the sensor.

[0012] Furthermore, the sensor includes an acceleration sensor and a sound collector.

[0013] Beneficial effects achieved by this utility model:

[0014] This utility model uses sensors to simultaneously collect vibration and sound signals to detect abnormal actuator noise, significantly reducing detection costs while ensuring detection accuracy. The first and second drive assemblies control the movement of the sensor and connector, respectively, and in conjunction with a PLC, automated detection can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a top view of an actuator abnormal sound detection mechanism of the utility model;

[0016] The reference numerals are as follows:

[0017] 1. Machine, 2. First drive assembly, 3. Second drive assembly, 4. Connector, 5. Sensor, 6. Detection component, 7. Workpiece base, 8. Adjustment assembly, 21. First cylinder, 22. Second cylinder, 23. Mounting plate, 31. Third cylinder, 32. Limit plate, 33. Fixed block, 34. Limit block, 35. Buffer rod. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] An actuator abnormal sound detection mechanism, such as Figure 1As shown, the system includes a machine 1, a first drive assembly 2, a second drive assembly 3, a connector 4, a sensor 5, a detection element 6, and a workpiece holder 7. The workpiece holder 7 is mounted on the machine 1 and has a placement position for the workpiece. The workpiece holder 7 is removably fixed to the machine 1 by screws, allowing the corresponding workpiece holder to be selected based on the product being tested. The first and second drive assemblies 2 and 3 are mounted on the machine 1 and are located to the sides of the workpiece holder 7. The detection element 6 is mounted on the first drive assembly 2 via the sensor 5. The first drive assembly 2 controls the movement of the detection element 6 onto the workpiece holder 7 and places it in contact with the workpiece surface. The connector 4 is mounted on the second drive assembly 3 and is moved horizontally by the second drive assembly 3 to electrically connect the connector 4 to the workpiece. During testing, the sensor 5 detects workpiece surface vibration and collects ambient sound changes. Abnormal noise in actuators is often caused by jamming of internal components such as gears and screws. This noise is usually accompanied by workpiece vibration. Therefore, by combining sensor-based workpiece vibration monitoring and sound collection, these two sets of data can be used to detect abnormal noise.

[0020] In one embodiment, if Figure 1 As shown, the first drive assembly 2 includes a first cylinder 21, a second cylinder 22, and a mounting plate 23. The first cylinder 21 is mounted on the machine table 1, the second cylinder 22 is mounted on the first cylinder 21, the mounting plate 23 is mounted on the second cylinder 22, and the sensor 5 is mounted on the mounting plate 23. The first cylinder 21 drives the sensor 5 to move horizontally above the workpiece, and the second cylinder 22 drives the sensor 5 toward the workpiece. The first drive assembly 2 moves the sensor to avoid affecting the normal loading and unloading of the workpiece.

[0021] In the above embodiment, if Figure 1 As shown, the first cylinder 21 and the second cylinder 22 are guide rail slide cylinders.

[0022] In one embodiment, the second driving assembly 3 includes a third cylinder 31, and the connector 4 is disposed on the third cylinder 31. The third cylinder 31 is used to drive the connector 4 to move horizontally and connect with the workpiece. Preferably, the third cylinder 31 is a guide rail slide cylinder.

[0023] In the above embodiment, if Figure 1 As shown, the second drive assembly 3 further includes a limit plate 32, a fixed block 33, and a limit block 34. The limit plate 32 is disposed on the third cylinder 31, and the fixed block 33 is disposed in the direction of movement of the limit plate 32. The limit block 34 and the fixed block 33 are threadedly engaged to adjust the extension position of the connector 4. Specifically, a screw hole is provided on the fixed block 33, and a screw is provided on the limit block 34. By rotating the limit block 34, the axial adjustment of the limit block 34 is achieved, thereby adjusting the stop position of the connector 4.

[0024] In one embodiment, if Figure 1 As shown, the second drive assembly 3 further includes a buffer rod 35, which acts on the limit plate 32. The buffer rod 35 is provided to ensure stable movement of the connector 4, thereby preventing the workpiece from being impacted by excessive speed.

[0025] In one embodiment, if Figure 1 As shown, the first drive assembly 2 and the second drive assembly 3 are respectively mounted on the machine platform 1 via an adjustment assembly 8. The adjustment assembly 8 adjusts the horizontal position of the first drive assembly 2 and the second drive assembly 3. Furthermore, the initial position of the sensor 5 and the connector 4 is adjusted according to the product. In a preferred embodiment, the adjustment assembly 8 is a screw slide.

[0026] In one embodiment, if Figure 1 As shown, the detection member 6 is a metal flat plate, and the metal flat plate 6 is connected to the sensor 5 .

[0027] In one embodiment, if Figure 1 As shown, the sensor 5 is an acceleration sensor and a sound collector.

[0028] When the utility model is in use, Figure 1 As shown, a workpiece is placed on a workpiece holder 7. The first and second drive assemblies 2 and 3 then respectively drive the sensor 5 and connector 4 toward the workpiece. Connector 4 energizes the workpiece. During testing, connector 4 energizes the workpiece to drive the workpiece. A detection member 6 contacts the workpiece. Vibration and sound are collected using an accelerometer and a sound collector. A computer generates a graph to determine whether the timing of the vibration and sound fluctuations corresponds. If so, it indicates that the actuator is experiencing abnormal sound.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Without departing from the spirit and scope of the present invention, modifications or equivalent replacements of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. An actuator abnormal sound detection mechanism, characterized in that: The invention comprises a machine platform, a first drive component, a second drive component, a connector, a sensor, a detection component and a workpiece seat, wherein the workpiece seat is arranged on the machine platform, and the first drive component and the second drive component are arranged on the machine platform and are located on the side of the workpiece seat; the detection component is arranged on the first drive component through a sensor, and the first drive component is used to control the detection component to move to the workpiece seat and make the detection component contact with the surface of the workpiece; the connector is arranged on the second drive component, and the second drive component is used to move horizontally to electrically connect the connector to the workpiece; during detection, the sensor is used to detect the vibration of the workpiece surface and the change of environmental sound.

2. The actuator abnormal sound detection mechanism according to claim 1, characterized in that: The first driving assembly includes a first cylinder, a second cylinder and a mounting plate. The first cylinder is arranged on the machine table, the second cylinder is arranged on the first cylinder, the mounting plate is arranged on the second cylinder, and the sensor is arranged on the mounting plate. The first cylinder is used to drive the sensor to move horizontally above the workpiece, and the second cylinder is used to drive the sensor to move toward the workpiece.

3. The actuator abnormal sound detection mechanism according to claim 2, characterized in that: The first cylinder and the second cylinder are guide rail slide cylinders.

4. The actuator abnormal sound detection mechanism according to claim 1, characterized in that: The second driving assembly includes a third cylinder, the connector is arranged on the third cylinder, and the third cylinder is used to drive the connector to move horizontally and connect with the workpiece.

5. The actuator abnormal sound detection mechanism according to claim 4, characterized in that: The second driving assembly also includes a limit plate, a fixed block and a limit block, the limit plate is arranged on the third cylinder, the fixed block is arranged in the moving direction of the limit plate, and the limit block is threadedly engaged with the fixed block to adjust the extension position of the connector.

6. The actuator abnormal sound detection mechanism according to claim 5, characterized in that: The second driving assembly further includes a buffer rod, which acts on the limiting plate.

7. The actuator abnormal sound detection mechanism according to claim 1, characterized in that: The first driving assembly and the second driving assembly are respectively installed on the machine platform through adjustment assemblies.

8. The actuator abnormal sound detection mechanism according to claim 7, characterized in that: The adjusting component is a screw slide.

9. The actuator abnormal sound detection mechanism according to claim 1, characterized in that: The detection member is a metal flat plate, and the metal flat plate is connected to the sensor.

10. The actuator abnormal sound detection mechanism according to claim 1, characterized in that: The sensor includes an acceleration sensor and a sound collector.

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