CN210863082U - Non-contact triaxial laser vibration testing device - Google Patents
Non-contact triaxial laser vibration testing device Download PDFInfo
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- CN210863082U CN210863082U CN201921740358.2U CN201921740358U CN210863082U CN 210863082 U CN210863082 U CN 210863082U CN 201921740358 U CN201921740358 U CN 201921740358U CN 210863082 U CN210863082 U CN 210863082U
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- 238000012360 testing method Methods 0.000 title claims abstract description 42
- 239000000523 sample Substances 0.000 claims abstract description 37
- 238000005259 measurement Methods 0.000 claims abstract description 15
- 230000008054 signal transmission Effects 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000003292 glue Substances 0.000 abstract description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
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Abstract
The patent of the utility model belongs to the environmental test field relates to a non-contact triaxial is to laser vibration testing arrangement. The device comprises a base, a vertical telescopic device, a horizontal telescopic device and a laser vibration measuring probe; the bottom of the vertical telescopic device is fixed on the base and used for vertical lifting of the horizontal telescopic device; one end of the horizontal telescopic device is arranged at the top of the vertical telescopic device through a rotating shaft, the other end of the horizontal telescopic device is fixedly provided with a laser vibration measurement probe, and the horizontal telescopic device is used for horizontal movement of the laser vibration measurement probe; the laser vibration measuring probe is arranged at the tail end of the horizontal telescopic rod through a rotating shaft and used for testing the vibration response of the workpiece. This practicality glues the sensor and saves working time than traditional contactness, has improved the test efficiency of product, conveniently obtains the vibration response curve of this test position, does benefit to the mechanical analysis to product special point, special position, provides reliable foundation for further analysis product vibration characteristic.
Description
Technical Field
The patent of the utility model belongs to the environmental test field relates to a non-contact triaxial is to laser vibration testing arrangement.
Background
Vibration testing is an important component of environmental testing. At present, for testing parts such as curved surfaces, components and optical devices, obtaining a vibration response curve of the position is difficult, a sensor cannot be directly installed to test the vibration response condition of the point, the actual vibration response of the testing point cannot be accurately analyzed when the vibration test of the type of parts fails, the troubleshooting and mechanical analysis are inconvenient, and effective evidence cannot be provided for subsequent optimization and improvement of products.
Disclosure of Invention
In order to overcome the defect that a sensor is adhered in a vibration test, the utility model relates to a non-contact triaxial laser vibration testing device, which comprises a base, a vertical telescopic device, a horizontal telescopic device and a laser vibration measuring probe; the bottom of the vertical telescopic device is fixed on the base and used for vertical lifting of the horizontal telescopic device; one end of the horizontal telescopic device is arranged at the top of the vertical telescopic device through a rotating shaft, the other end of the horizontal telescopic device is fixedly provided with a laser vibration measurement probe, and the horizontal telescopic device is used for horizontal movement of the laser vibration measurement probe; the laser vibration measuring probe is arranged at the tail end of the horizontal telescopic rod through a rotating shaft and used for testing the vibration response of the workpiece.
In order to facilitate the movement and fixation of the whole device, a pulley is arranged below the base, the pulley is fixedly arranged at the bottom of the base, and the pulley is a lockable pulley.
In order to enlarge the measuring angle range, the rotating range of the rotating shaft is 360 degrees.
Preferably, the vertical telescopic device comprises a fixed cylinder, a telescopic arm, a probe rotating shaft, a distance adjusting gear and a distance adjusting rack; one end of the telescopic arm is arranged in the fixed cylinder, the telescopic arm can linearly and telescopically move along the fixed cylinder, and the other end of the telescopic arm is fixed with the horizontal telescopic arm rotating shaft and the distance adjusting rack; the distance adjusting gear is fixed outside the fixed cylinder through a fixed pin and can rotate around the fixed pin; one end of the distance adjusting rack is fixed on the telescopic arm, the other end of the distance adjusting rack is meshed with the distance adjusting gear, and the distance adjusting rack is parallel to the telescopic arm.
Preferably, the horizontal telescopic device comprises a fixed cylinder, a telescopic arm, a probe rotating shaft, a distance adjusting gear and a distance adjusting rack; one end of the telescopic arm is arranged in the fixed cylinder, the telescopic arm can linearly and telescopically move along the fixed cylinder, and the other end of the telescopic arm is fixed with the probe rotating shaft and the distance adjusting rack; the distance adjusting gear is fixed outside the fixed cylinder through a fixed pin and can rotate around the fixed pin; one end of the distance adjusting rack is fixed on the telescopic arm, the other end of the distance adjusting rack is meshed with the distance adjusting gear, and the distance adjusting rack is parallel to the telescopic arm.
Preferably, the laser vibration measuring probe comprises a laser emitting component, a receiving component, a signal transmission unit and a signal processing unit; the laser emitting component is used for emitting laser beams to a measured object; the receiving component is used for receiving the reflected laser beam of the measured object; the signal transmission unit is used for converting the optical signal of the receiving component into an electric signal and transmitting the electric signal to the signal processing unit, and the signal processing unit is used for processing the signal and analyzing the vibration response.
The beneficial effects of the utility model are that, use through the cooperation of laser vibration measurement probe and portable arm, not only realized product test point non-contact response test, glue the sensor and save labour time than traditional contactability, improved the test efficiency of product, conveniently obtain the vibration response curve of this test position, do benefit to the mechanical analysis to product special point, special position, provide reliable foundation for further analysis product vibration characteristic.
Drawings
Fig. 1 is a structural outline view of the present invention.
Fig. 2 is a profile view of a mechanical arm combined by a vertical retractor and a horizontal retractor.
Fig. 3 is an outline view of a laser test probe.
Wherein: 1-laser vibration measuring probe, 2-horizontal expansion device, 3-vertical expansion device and 4-pulley
Detailed Description
The invention is further described with reference to the accompanying drawings.
The embodiment relates to a non-contact triaxial laser vibration testing device which comprises a base, a vertical telescopic device 3, a horizontal telescopic device 2 and a laser vibration measuring probe 1; the bottom of the vertical telescopic device 3 is fixed on the base and is used for vertical lifting of the horizontal telescopic device 2; one end of the horizontal telescopic device 2 is arranged at the top of the vertical telescopic device 3 through a rotating shaft, the other end of the horizontal telescopic device 2 is fixedly provided with the laser vibration measurement probe 1, and the horizontal telescopic device 2 is used for the horizontal movement of the laser vibration measurement probe 1; the laser vibration measurement probe 1 is arranged at the tail end of the horizontal telescopic rod through a rotating shaft, and the laser vibration measurement probe 1 is used for testing the vibration response of a workpiece. In order to facilitate the movement and fixation of the whole device, a pulley 4 is arranged below the base, the pulley 4 is fixedly arranged at the bottom of the base, and the pulley 4 is a lockable pulley 4. In order to enlarge the measuring angle range, the rotating range of the rotating shaft is 360 degrees.
The vertical telescopic device 3 comprises a fixed cylinder, a telescopic arm, a probe rotating shaft, a distance adjusting gear and a distance adjusting rack; one end of the telescopic arm is arranged in the fixed cylinder, the telescopic arm can linearly and telescopically move along the fixed cylinder, and the other end of the telescopic arm is fixed with the horizontal telescopic arm rotating shaft and the distance adjusting rack; the distance adjusting gear is fixed outside the fixed cylinder through a fixed pin and can rotate around the fixed pin; one end of the distance adjusting rack is fixed on the telescopic arm, the other end of the distance adjusting rack is meshed with the distance adjusting gear, and the distance adjusting rack is parallel to the telescopic arm.
The horizontal telescopic device 2 comprises a fixed cylinder, a telescopic arm, a probe rotating shaft, a distance adjusting gear and a distance adjusting rack; one end of the telescopic arm is arranged in the fixed cylinder, the telescopic arm can linearly and telescopically move along the fixed cylinder, and the other end of the telescopic arm is fixed with the probe rotating shaft and the distance adjusting rack; the distance adjusting gear is fixed outside the fixed cylinder through a fixed pin and can rotate around the fixed pin; one end of the distance adjusting rack is fixed on the telescopic arm, the other end of the distance adjusting rack is meshed with the distance adjusting gear, and the distance adjusting rack is parallel to the telescopic arm.
The laser vibration measuring probe 1 comprises a laser emitting component, a receiving component, a signal transmission unit and a signal processing unit; the laser emitting component is used for emitting laser beams to a measured object; the receiving component is used for receiving the reflected laser beam of the measured object; the signal transmission unit is used for converting the optical signal of the receiving component into an electric signal and transmitting the electric signal to the signal processing unit, and the signal processing unit is used for processing the signal and analyzing the vibration response.
The horizontal force arm is provided with 6 mounting grooves, and the laser vibration measuring probe 1 is mounted at the tail end of the horizontal extension device through bolts. The distance and the direction of the horizontal telescopic device 2 are adjustable; the vertical telescopic device 3 has adjustable space and adjustable direction, so that the product to be tested can be tested at different heights and distances.
During specific work, a product to be tested is installed on a vibration table, a test vibration response test point is determined, then the horizontal expansion device 2 and the vertical expansion device 3 are adjusted, the laser vibration testing probe 1 is aligned to the test point, vibration is applied according to vibration conditions, and meanwhile, a response curve of the test point is tested through the laser vibration testing probe 1.
Through the cooperation use of laser vibration measurement probe 1 and portable arm, realized gluing the mode of sensor more convenient more fast than traditional contact nature to product test point non-contact response test, provide effective method to the vibration response test of product special point, special position, provide reliable basis for the follow-up optimization of product.
Claims (6)
1. The utility model provides a non-contact triaxial laser vibration testing arrangement which characterized in that: the non-contact triaxial laser vibration testing device comprises a base, a vertical telescopic device (3), a horizontal telescopic device (2) and a laser vibration measuring probe (1); the bottom of the vertical telescopic device (3) is fixed on the base and is used for vertical lifting of the horizontal telescopic device (2); one end of the horizontal telescopic device (2) is arranged at the top of the vertical telescopic device (3) through a rotating shaft, the other end of the horizontal telescopic device is fixedly provided with the laser vibration measurement probe (1), and the horizontal telescopic device (2) is used for horizontally moving the laser vibration measurement probe (1); the laser vibration measurement probe (1) is arranged at the tail end of the horizontal telescopic rod through a rotating shaft, and the laser vibration measurement probe (1) is used for testing the vibration response of a workpiece.
2. The non-contact triaxial laser vibration testing device according to claim 1, wherein: the lower part of the base is provided with a pulley (4), the pulley (4) is fixedly arranged at the bottom of the base, and the pulley (4) is a lockable pulley (4).
3. The non-contact triaxial laser vibration testing device according to claim 1, wherein: the rotating range of the rotating shaft is 360 degrees.
4. The non-contact triaxial laser vibration testing device according to claim 1, wherein: the vertical telescopic device (3) comprises a fixed cylinder, a telescopic arm, a probe rotating shaft, a distance adjusting gear and a distance adjusting rack; one end of the telescopic arm is arranged in the fixed cylinder, the telescopic arm can linearly and telescopically move along the fixed cylinder, and the other end of the telescopic arm is fixed with the horizontal telescopic arm rotating shaft and the distance adjusting rack; the distance adjusting gear is fixed outside the fixed cylinder through a fixed pin and can rotate around the fixed pin; one end of the distance adjusting rack is fixed on the telescopic arm, the other end of the distance adjusting rack is meshed with the distance adjusting gear, and the distance adjusting rack is parallel to the telescopic arm.
5. The non-contact triaxial laser vibration testing device according to claim 4, wherein: the horizontal telescopic device (2) comprises a fixed cylinder, a telescopic arm, a probe rotating shaft, a distance adjusting gear and a distance adjusting rack; one end of the telescopic arm is arranged in the fixed cylinder, the telescopic arm can linearly and telescopically move along the fixed cylinder, and the other end of the telescopic arm is fixed with the probe rotating shaft and the distance adjusting rack; the distance adjusting gear is fixed outside the fixed cylinder through a fixed pin and can rotate around the fixed pin; one end of the distance adjusting rack is fixed on the telescopic arm, the other end of the distance adjusting rack is meshed with the distance adjusting gear, and the distance adjusting rack is parallel to the telescopic arm.
6. The non-contact triaxial laser vibration testing device according to claim 1, wherein: the laser vibration measurement probe (1) comprises a laser emitting component, a receiving component, a signal transmission unit and a signal processing unit; the laser emitting component is used for emitting laser beams to a measured object; the receiving component is used for receiving the reflected laser beam of the measured object; the signal transmission unit is used for converting the optical signal of the receiving component into an electric signal and transmitting the electric signal to the signal processing unit, and the signal processing unit is used for processing the signal and analyzing the vibration response.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921740358.2U CN210863082U (en) | 2019-10-17 | 2019-10-17 | Non-contact triaxial laser vibration testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921740358.2U CN210863082U (en) | 2019-10-17 | 2019-10-17 | Non-contact triaxial laser vibration testing device |
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| Publication Number | Publication Date |
|---|---|
| CN210863082U true CN210863082U (en) | 2020-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921740358.2U Active CN210863082U (en) | 2019-10-17 | 2019-10-17 | Non-contact triaxial laser vibration testing device |
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| CN (1) | CN210863082U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113418591A (en) * | 2021-07-29 | 2021-09-21 | 哈尔滨理工大学 | Axial vibration double-position non-contact detection device and prediction method for five-axis machine tool workbench |
| CN113432698A (en) * | 2021-05-07 | 2021-09-24 | 宁波职业技术学院 | Position adjusting mechanism for intelligent laser vibration meter |
-
2019
- 2019-10-17 CN CN201921740358.2U patent/CN210863082U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113432698A (en) * | 2021-05-07 | 2021-09-24 | 宁波职业技术学院 | Position adjusting mechanism for intelligent laser vibration meter |
| CN113432698B (en) * | 2021-05-07 | 2023-11-10 | 宁波职业技术学院 | A position adjustment mechanism for intelligent laser vibrometer |
| CN113418591A (en) * | 2021-07-29 | 2021-09-21 | 哈尔滨理工大学 | Axial vibration double-position non-contact detection device and prediction method for five-axis machine tool workbench |
| CN113418591B (en) * | 2021-07-29 | 2024-01-26 | 哈尔滨理工大学 | Two-position non-contact detection device and prediction method for axial vibration of five-axis machine tool table |
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