An apparatus for automatically detecting product deformation

Abstract

This utility model belongs to the technical field of fan deformation testing equipment, and particularly relates to an automatic product deformation detection device, comprising: a base, with a working platform mounted on top of the base; a drive motor, the body of which is installed inside the base, with its drive shaft extending out of the working platform; a rotating shaft clamp connected to the drive shaft of the drive motor and used to hold the fan impeller to be tested, and the rotating shaft clamp can rotate around its own axis under the action of the drive motor; an adjustable bracket with a sliding structure, within which a vibration sensor for detecting the vibration of the fan impeller during rotation is configured to be rotatable; and a displacement sensor mounted on the working platform and used to detect the displacement change of the fan impeller during rotation. This significantly improves the accuracy and precision of the detection, meets the requirements of high-precision testing, and better ensures product quality and performance.

Description

Technical Field

[0001] This utility model belongs to the technical field of fan deformation testing equipment, and in particular relates to an automatic product deformation detection device. Background Technology

[0002] During the production of cross-flow fan impellers, various defects often occur due to factors such as process control and processing equipment. To ensure product quality, these impellers must undergo dynamic balancing testing and correction.

[0003] However, existing dynamic balancing machines generally use sensors with fixed angles for detection. This setup may not be able to accurately capture subtle differences when faced with slight deformation of the fan. In addition, installation errors may occur during the fan installation process, the balancing machine's shaft may run out of control, and even wear on transmission components can further affect the accuracy of the test results.

[0004] Therefore, existing dynamic balancing testing methods cannot meet the needs of high-precision testing. There is an urgent need for a dynamic balancing testing technology that can flexibly adjust the angle and improve the accuracy of testing, so as to better ensure product quality and performance. Utility Model Content

[0005] The purpose of this invention is to provide an automatic product deformation detection device, which aims to solve the technical problem that existing dynamic balancing machines cannot perform high-precision detection by adjusting the position of the sensor, thus affecting the accuracy of the detection results.

[0006] To achieve the above objectives, this utility model provides an automatic product deformation detection device, comprising: A base, on top of which a working platform is provided; A drive motor, the body of which is mounted in the base, and the drive shaft of which extends out of the working platform; A rotating shaft clamp is connected to the drive shaft of the drive motor and is used to place the fan impeller to be tested. The rotating shaft clamp is capable of rotating around its own axis under the action of the drive motor. An adjustable bracket is provided with a sliding structure, and a vibration sensor for detecting the vibration of the fan impeller during rotation is disposed within the sliding structure. The vibration sensor is configured to be rotatable. A displacement sensor is installed on the working platform and is used to detect the displacement changes of the fan impeller during rotation.

[0007] Optionally, the sliding structure includes: The adjustable bracket has an arc-shaped guide groove and a through hole. A rotary joint, a portion of which is rotatably connected to the through hole, and another portion of which slides in the arc-shaped guide groove, wherein the vibration sensor is mounted on the rotary joint.

[0008] Optionally, the arc-shaped guide groove is provided with scale markings to indicate the angular deflection position of the rotary joint on the arc-shaped guide groove.

[0009] Optionally, the adjustable bracket is provided with a locking structure for locking the rotary joint, the locking structure including a locking screw.

[0010] Optionally, the adjustable bracket is provided with a ratchet locking structure for locking the rotary joint. The ratchet locking structure includes slots evenly distributed on the inner wall of the adjustable bracket and an elastic pin that can be inserted into the slots and fix the rotation angle. The elastic pin is fixed on the rotary joint.

[0011] Optionally, the rotating shaft clamp includes a pneumatic three-jaw chuck and a conical floating bushing, the inner wall of which is provided with strain sensing plates.

[0012] Optionally, the strain sensor plates are arranged in a circumferential array.

[0013] Optionally, the drive shaft of the drive motor is connected to the rotating shaft clamp via a diaphragm coupling, and an acoustic emission sensor is sleeved on the outer side of the diaphragm coupling.

[0014] Optionally, the automatic product deformation detection device further includes a human-machine interface display screen, which is installed on the side of the base and used to display device parameters.

[0015] Optionally, the base has multiple heat dissipation holes on its side.

[0016] The above-mentioned technical solutions of one or more technical solutions in the automatic product deformation detection device provided in this embodiment of the utility model have at least one of the following technical effects: This utility model discloses an automatic product deformation detection device. By installing a drive motor in a base and connecting it to a rotating shaft clamp via a drive shaft to rotate a fan impeller, and combining it with a displacement sensor on a work platform that can detect displacement changes, and a rotatable vibration sensor within an adjustable bracket sliding structure, it achieves precise detection of the fan impeller's vibration and displacement during rotation from multiple angles and dimensions. Compared to traditional dynamic balancing machines with fixed-angle sensors, it can not only flexibly adjust the sensor position and angle to capture subtle differences, but also effectively reduce the impact of installation errors, shaft runout, and wear of transmission components on the detection results, significantly improving the accuracy and precision of the detection, meeting the requirements of high-precision detection, and better ensuring product quality and performance. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the automatic product deformation detection device of this utility model.

[0019] Figure 2 for Figure 1 A magnified schematic diagram of a local structure.

[0020] Figure 3 This is the front view of the automatic product deformation detection device of this utility model.

[0021] The following are the labeling elements in the figure: 10. Base; 11. Working platform; 20. Rotary shaft clamp; 30. Adjustable bracket; 40. Sliding structure; 41. Arc-shaped guide groove; 42. Through hole; 43. Rotary joint; 50. Vibration sensor; 60. Displacement sensor; 70. Locking screw; 80. Heat dissipation hole. Detailed Implementation

[0022] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0023] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0026] In one embodiment of this utility model, such as Figures 1-3 As shown, an automatic product deformation detection device is provided, comprising: The base 10 has a working platform 11 on its top. A drive motor, the body of which is installed in the base 10, and the drive shaft of which extends out of the working platform 11; A rotating shaft clamp 20 is connected to the drive shaft of the drive motor and is used to place the fan impeller to be tested. The rotating shaft clamp 20 can rotate around its own axis under the action of the drive motor. An adjustable bracket 30 is provided with a sliding structure 40, and a vibration sensor 50 for detecting the vibration of the fan impeller during rotation is disposed within the sliding structure 40. The vibration sensor 50 is configured to be rotatable. A displacement sensor 60 is disposed on the working platform 11 and is used to detect the displacement change of the fan impeller during rotation.

[0027] Specifically, the automatic product deformation detection device of this utility model, by installing a drive motor in the base 10 and connecting it to the rotating shaft clamp 20 to drive the fan impeller to rotate, and cooperating with the displacement sensor 60 on the working platform 11 that can detect displacement changes, and the rotatable vibration sensor 50 in the sliding structure 40 of the adjustable bracket 30, can achieve accurate detection of the vibration and displacement of the fan impeller during rotation from multiple angles and dimensions. Compared with the traditional dynamic balancing machine with fixed angle sensors, it can not only flexibly adjust the position and angle of the sensor to capture subtle differences, but also effectively reduce the impact of installation errors, shaft runout and wear of transmission components on the detection results, significantly improve the accuracy and precision of the detection, meet the requirements of high-precision detection, and better ensure product quality and performance.

[0028] In another embodiment of this utility model, such as Figures 1-3 As shown, the sliding structure 40 includes: An arc-shaped guide groove 41 and a through hole 42 are formed on the adjustable bracket 30; A rotating joint 43 is provided, with one part rotatably connected to the through hole 42 and the other part sliding in the arc-shaped guide groove 41. The vibration sensor 50 is mounted on the rotating joint 43. Specifically, this embodiment, through the cooperation of the arc-shaped guide groove 41 and the rotating joint 43, allows the vibration sensor 50 to flexibly adjust its position and angle along an arc-shaped trajectory. Compared with the traditional linear sliding structure 40, it can cover a wider detection angle range. The dual connection method of the rotating joint 43, while ensuring stable installation of the sensor, greatly improves the flexibility of its angle adjustment, enabling more accurate capture of vibration data from multiple angles during fan impeller rotation. This further enhances the ability to detect subtle differences, reduces detection blind spots caused by fixed sensor angles, and thus significantly enhances the comprehensiveness and accuracy of the detection results.

[0029] In another embodiment of this utility model, such as Figures 1-3 As shown, the arc-shaped guide groove 41 is provided with scale markings to indicate the angular deflection position of the rotary joint 43 on the arc-shaped guide groove 41. Specifically, the scale markings provide operators with an intuitive angle reference, enabling them to quickly and accurately adjust the vibration sensor to the target angle when adjusting the 50° angle, avoiding detection errors caused by blind angle adjustment; by precisely controlling the sensor angle, it ensures that the sensor is in the optimal detection position for each test, improving the standardization and consistency of the detection operation, thereby improving the reliability and repeatability of the detection data, and providing a more stable and accurate basis for product quality assessment.

[0030] In another embodiment of this utility model, such as Figures 1-3As shown, the adjustable bracket 30 is equipped with a locking structure for locking the rotating joint 43, which includes a locking screw 70. Specifically, the locking screw 70 can firmly lock the rotating joint 43 after the vibration sensor 50 is adjusted to a suitable angle and position, preventing the sensor from loosening or shifting due to vibration or other factors during equipment operation; effectively avoiding deviations in detection data caused by changes in sensor position, ensuring that the sensor remains in a stable working state during the detection process, improving the reliability of equipment operation, and ensuring that the accuracy of the detection results is not affected by external interference factors.

[0031] In another embodiment of this utility model, such as Figures 1-3 As shown, the adjustable bracket 30 is equipped with a ratchet locking structure for locking the rotary joint 43. The ratchet locking structure includes equally spaced slots on the inner wall of the adjustable bracket 30 and an elastic pin that can be inserted into the slots to fix the rotation angle. The elastic pin is fixed to the rotary joint 43. Specifically, the ratchet locking structure realizes graded locking of the angle of the rotary joint 43. The operator can quickly lock the sensor at a preset angle according to the detection requirements. The operation is simple and the locking is firm. Compared with ordinary locking methods, this structure can more stably maintain the sensor angle when subjected to equipment vibration, effectively reducing the detection error caused by frequent adjustment and failure of ordinary locking, improving detection efficiency and accuracy, and reducing the risk of unstable detection data caused by angle changes.

[0032] In another embodiment of this utility model, such as Figures 1-3 As shown, the rotating shaft clamp 20 includes a pneumatic three-jaw chuck and a conical floating bushing, the inner wall of which is equipped with a strain sensor. Specifically, the pneumatic three-jaw chuck can quickly and stably clamp fan impellers of different specifications, improving loading efficiency and clamping stability; the conical floating bushing, in conjunction with the strain sensor, can sense the stress changes experienced by the fan impeller during rotation in real time and convert them into electrical signals that are fed back to the control system; this not only helps to determine whether there are structural defects in the impeller, but also provides more comprehensive data support for dynamic balance correction by monitoring stress distribution, realizing multi-dimensional detection of fan impeller quality and improving the accuracy and reliability of the detection results.

[0033] In another embodiment of this utility model, such as Figures 1-3As shown, the strain gauges are arranged in a circumferential array. Specifically, the circumferential array of strain gauges can monitor stress changes on the inner wall of the fan impeller in a comprehensive and uniform manner, avoiding monitoring blind spots. Compared with dispersed or single-distributed gauges, it can obtain more complete and accurate stress data, improving the sensitivity and accuracy of stress change detection. Through precise analysis of the circumferential stress of the impeller, it helps to more accurately determine the structural integrity and dynamic balance of the impeller, providing a more detailed and reliable basis for product quality inspection.

[0034] In another embodiment of this utility model, such as Figures 1-3 As shown, the drive shaft of the drive motor is connected to the rotating shaft clamp 20 via a diaphragm coupling, and an acoustic emission sensor is sleeved on the outer side of the diaphragm coupling. Specifically, the diaphragm coupling has a good ability to compensate for the relative displacement of the two shafts, which can effectively reduce the vibration transmission caused by factors such as misalignment between the drive shaft and the rotating shaft clamp 20, and installation errors, ensuring the smooth rotation of the fan impeller. At the same time, the acoustic emission sensor sleeved on the outer side can monitor the acoustic emission signals generated by the coupling and transmission components in real time during operation. By analyzing these signals, potential faults such as wear and loosening of the coupling can be detected in advance, as well as abnormal vibration sources when the fan impeller rotates. This achieves dual monitoring of the equipment operating status and the product testing process, which not only improves the safety and reliability of equipment operation, but also provides additional data reference for accurately judging the dynamic balance state of the fan impeller, further improving the accuracy of the test results.

[0035] In another embodiment of this utility model, such as Figures 1-3 As shown, the automatic product deformation detection device also includes a human-machine interface display screen, which is installed on the side of the base 10 and used to display device parameters. Specifically, the human-machine interface display screen provides operators with an intuitive and convenient operating interface, which can display equipment operating parameters, detection data, working status and other information in real time; operators can quickly understand the equipment's operating status without complicated operations, and conveniently adjust detection parameters and monitor the detection process in a timely manner.

[0036] In another embodiment of this utility model, such as Figures 1-3 As shown, the base 10 has multiple heat dissipation holes 80 on its side. Specifically, the heat dissipation holes 80 can accelerate air circulation inside the base 10, and dissipate the heat from heat-generating components such as the drive motor to the outside in a timely manner; it can avoid problems such as performance degradation, shortened lifespan, or even equipment failure caused by excessive internal temperature of the equipment; it can ensure that the equipment operates in a stable temperature environment, improve operational stability and reliability, extend the overall lifespan of the equipment, and provide hardware support for the continuous and accurate conduct of testing work.

[0037] The rest of this embodiment is the same as that in Embodiment 1. Features not explained in this embodiment are explained using the methods in Embodiment 1, and will not be repeated here.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic device for detecting product deformation, characterized in that, include: A base, on top of which a working platform is provided; A drive motor, the body of which is mounted in the base, and the drive shaft of which extends out of the working platform; A rotating shaft clamp is connected to the drive shaft of the drive motor and is used to place the fan impeller to be tested. The rotating shaft clamp is capable of rotating around its own axis under the action of the drive motor. An adjustable bracket is provided with a sliding structure, and a vibration sensor for detecting the vibration of the fan impeller during rotation is disposed within the sliding structure. The vibration sensor is configured to be rotatable. A displacement sensor is installed on the working platform and is used to detect the displacement changes of the fan impeller during rotation.

2. The automatic product deformation detection device according to claim 1, characterized in that: The sliding structure includes: The adjustable bracket has an arc-shaped guide groove and a through hole. A rotary joint, a portion of which is rotatably connected to the through hole, and another portion of which slides in the arc-shaped guide groove, wherein the vibration sensor is mounted on the rotary joint.

3. The automatic product deformation detection device according to claim 2, characterized in that: The arc-shaped guide groove is provided with scale markings to indicate the angular deflection position of the rotary joint on the arc-shaped guide groove.

4. The automatic product deformation detection device according to claim 3, characterized in that: The adjustable bracket is provided with a locking structure for locking the rotating joint, and the locking structure includes a locking screw.

5. The automatic product deformation detection device according to claim 3, characterized in that: The adjustable bracket is provided with a ratchet locking structure for locking the rotary joint. The ratchet locking structure includes slots evenly distributed on the inner wall of the adjustable bracket and an elastic pin that can be inserted into the slots and fix the rotation angle. The elastic pin is fixed on the rotary joint.

6. The device according to claim 1, characterized in that: The rotating shaft clamp includes a pneumatic three-jaw chuck and a conical floating bushing, the inner wall of which is provided with strain sensing plates.

7. The device according to claim 6, characterized in that: The strain sensor plates are arranged in a circular array.

8. The device according to claim 1, characterized in that: The drive shaft of the drive motor is connected to the rotating shaft clamp via a diaphragm coupling, and an acoustic emission sensor is sleeved on the outer side of the diaphragm coupling.

9. The automatic product deformation detection device according to claim 1, characterized in that: The automatic product deformation detection device also includes a human-machine interface display screen, which is installed on the side of the base and used to display device parameters.

10. The automatic product deformation detection device according to claim 1, characterized in that: The base has multiple heat dissipation holes on its side.

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