Vibration testing mechanism and vibration testing equipment

Abstract

The utility model discloses a vibration testing mechanism and vibration testing equipment, the vibration testing mechanism comprises a base plate, a product fixing device, a sensor fixing frame, a vibration sensor and an ampere meter, the product fixing device and the sensor fixing frame are both installed on the base plate, the product fixing device is used for installing a product to be detected, and the sensor fixing frame is used for installing the vibration sensor. The vibration sensor is installed on the sensor fixing frame and used for detecting the vibration amplitude and the vibration frequency of the product, the product fixing device is provided with a connecting piece used for being electrically connected with the product, and the ampere meter is electrically connected with the connecting piece and used for detecting the current when the product works. The vibration sensor is arranged to detect the vibration amplitude and the vibration frequency of the product, and then the ampere meter is used to detect the current when the product works, so that the vibration testing mechanism can detect the vibration amplitude, the vibration frequency and the working current of the product at the same time, the detection content is richer, and the detection efficiency is improved. Therefore, the test requirements of existing products are met.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration testing, in particular to a vibration testing mechanism and a vibration testing device. Background Art

[0002] Due to the popularity of small household appliances, many small appliances have vibration functions, such as electric toothbrushes, electric facial cleansing devices, etc. However, after the products are developed, their performance needs to be tested. For small appliances with vibration functions, the most important test item is the vibration performance.

[0003] In the existing technology, there are devices for testing the amplitude, but mainly using the methods of laser and plane mirror reflection for measurement. The installation and debugging are time-consuming, and the requirements for the mirror surface are very high. There is also no function of synchronously testing the vibration frequency and current, and no mechanism for automatically turning on and off the product and automatically adjusting the position of the sensor. Therefore, the existing testing devices have fewer functions and cannot meet the testing requirements of existing products. Summary of the Utility Model

[0004] In order to overcome the disadvantages and deficiencies existing in the prior art, the purpose of the utility model is to provide a vibration testing mechanism and a vibration testing device to solve the problems that the existing testing devices have fewer functions and cannot meet the testing requirements of existing products.

[0005] The purpose of the utility model is achieved by the following technical solutions:

[0006] The utility model provides a vibration testing mechanism, which includes a bottom plate, a product fixing device, a sensor fixing bracket, a vibration sensor and an ammeter. The product fixing device and the sensor fixing bracket are both installed on the bottom plate. The product fixing device is used for installing the product to be detected. The vibration sensor is installed on the sensor fixing bracket and is used for detecting the vibration amplitude and vibration frequency of the product. A connecting piece for electrically connecting with the product is arranged on the product fixing device, and the ammeter is electrically connected with the connecting piece and is used for detecting the current when the product is working.

[0007] Further, the product fixing device includes a lower template, an upper template and a frame. The lower template and the frame are both installed on the bottom plate. The upper template is slidably connected with the frame and can slide up and down relative to the frame. The upper template and the lower template cooperate with each other and are jointly used for clamping the product.

[0008] Further, the product fixing device includes an operating rod, a connecting rod and a linkage rod. One end of the operating rod is rotatably connected to the frame, one end of the connecting rod is rotatably connected to the operating rod, the other end of the connecting rod is rotatably connected to one end of the linkage rod, and the other end of the linkage rod is connected to the upper template. The up-and-down rotation of the operating rod can drive the linkage rod and the upper template to move up and down together.

[0009] Further, the product fixing device includes a switch driver, which is installed on the upper template and used to drive the switch action of the product.

[0010] Further, a mounting plate is provided at the bottom of the lower template. The lower template is fixed to the mounting plate, and a shock pad is provided between the mounting plate and the bottom plate.

[0011] Further, the sensor fixing bracket includes a support frame, a fixed slider and a driving mechanism. The support frame is installed on the bottom plate. The fixed slider is slidably connected to the support frame and can slide up and down relative to the support frame. The driving mechanism is installed on the support frame and used to drive the fixed slider to move up and down. The vibration sensor is installed on the fixed slider and moves synchronously with the fixed slider.

[0012] Further, the vibration testing mechanism includes a sensor controller, which is installed on the bottom plate. The sensor controller is electrically connected to the vibration sensor and used to control the working state of the vibration sensor.

[0013] Further, the vibration testing mechanism includes a voltmeter, which is electrically connected to the connecting member and used to detect the voltage when the product is working.

[0014] This application also provides a vibration testing device, which includes a chassis, a central controller and the vibration testing mechanism as described above. The vibration testing mechanism is installed in the chassis. The ammeter is installed on the shell of the chassis. The central controller is electrically connected to the ammeter and the connecting member.

[0015] Further, at least one of a power switch, a start button, a warning light, a detection indicator light, a USB interface, a touch screen and an oscilloscope is provided on the chassis. The power switch, the start button, the warning light, the detection indicator light, the USB interface, the touch screen and the oscilloscope are all electrically connected to the central controller.

[0016] The beneficial effects of the present utility model are as follows: By setting a vibration sensor to detect the vibration amplitude and vibration frequency of the product, and then using an ammeter to detect the current when the product is working, the vibration test mechanism can simultaneously detect the vibration amplitude, vibration frequency, and working current of the product, with richer detection content to meet the test requirements of existing products. Brief Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the vibration test equipment in the present utility model.

[0018] Figure 2 It is a schematic structural diagram of the vibration test mechanism when testing a product in the present utility model.

[0019] Figure 3 It is one of the schematic structural diagrams of the vibration test mechanism in the present utility model.

[0020] Figure 4 It is the second schematic structural diagram of the vibration test mechanism in the present utility model.

[0021] In the figure: vibration test mechanism 10, bottom plate 11, fixed clamping block 111, product fixing device 12, lower template 121, connecting member 1211, mounting plate 1212, shock pad 1213, upper template 122, frame 123, slide rail 1231, operating rod 124, connecting rod 125, linkage rod 126, switch driver 127, sensor fixing bracket 13, support frame 131, fixed slider 132, driving mechanism 133, vibration sensor 14, ammeter 151, voltmeter 152, sensor controller 16, chassis 20, power switch 21, start button 22, warning light 23, detection indicator light 24, USB interface 25, touch screen 26, oscilloscope 27, triple unit 28; product 200. Detailed Embodiment

[0022] To further elaborate on the technical means and effects adopted by the present utility model to achieve the intended utility model purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, details the specific embodiments, structures, features, and effects of the vibration test mechanism and vibration test equipment proposed according to the present utility model as follows:

[0023] Figure 1 It is a schematic structural diagram of the vibration test equipment in the present utility model. Figure 2 It is a schematic structural diagram of the vibration test mechanism when testing a product in the present utility model. Figure 3 It is one of the schematic structural diagrams of the vibration test mechanism in the present utility model. Figure 4 It is the second schematic structural diagram of the vibration test mechanism in the present utility model.

[0024] Such asFigures 1 to 4 As shown in the figure, a vibration test device provided by the present utility model includes a vibration test mechanism 10, a chassis 20, and a central controller. The vibration test mechanism 10 is installed inside the chassis 20, an ammeter 151 is installed on the housing of the chassis 20, and the central controller is electrically connected to the ammeter 151, a voltmeter 152, and a connecting member 1211. Among them, the chassis 20 includes a frame and a housing. The housing includes a bottom shell, a top shell, and side walls. The chassis 20 is divided into upper and lower cavity spaces. The vibration test mechanism 10 is located in the lower cavity space of the chassis 20 and installed on the bottom shell, and the central controller is installed in the upper cavity space of the chassis 20. There is no housing at the vibration test mechanism 10 of the chassis 20 to expose the vibration test mechanism 10, so as to facilitate the placement and removal of the product 200; the ammeter 151 and the voltmeter 152 of the vibration test mechanism 10 are both installed on the front side wall of the housing, so as to facilitate the user to observe. The central controller, such as a PLC controller, is used to control the entire vibration test device.

[0025] Further, at least one of a power switch 21, a start button 22, a warning light 23, a detection indicator light 24, a USB interface 25, a touch screen 26, and an oscilloscope 27 is provided on the chassis 20. The power switch 21, the start button 22, the warning light 23, the detection indicator light 24, the USB interface 25, the touch screen 26, and the oscilloscope 27 are all electrically connected to the central controller. Among them, the warning light 23 is installed on the top of the chassis 20, so as to facilitate the staff to know the danger in time. The detection indicator light 24, the USB interface 25, and the touch screen 26 are installed on the front side wall of the housing for the user to observe; there are two detection indicator lights 24, one for indicating unqualified detection and the other for indicating qualified detection; the touch screen 26 is used to display the amplitude, frequency, current, and voltage and set the upper and lower limit parameters of the amplitude, frequency, current, and voltage; the USB interface 25 is used to copy test data. The oscilloscope 27 is installed in the upper cavity space of the chassis 20 to display the test vibration and frequency, and the amplitude can be automatically calculated from the voltage value of the oscilloscope 20. The power switch 21 and the start button 22 can be set according to actual needs, and there is no limit to their installation positions on the chassis 20. The power switch 21 is used to control the on and off of the power supply of the entire vibration test device, and the start button 22 is used to start the vibration test device to perform detection work or pause the detection work. Of course, the vibration test device is also provided with a power interface or a power cord to facilitate external power supply to it. The power supply is electrically connected to the power manager of the vibration test device, and the electrical signal is distributed to the connecting member 1211, the ammeter 151, the voltmeter 152, the power switch 21, the start button 22, the warning light 23, the detection indicator light 24, the USB interface 25, the touch screen 26, and the oscilloscope 27, etc. through the power manager.

[0026] Further, since the vibration testing mechanism 10 needs to use drivers such as air cylinders, a triple unit 28 is also provided on the chassis 20. The triple unit 28 can adjust the air pressure and filter the air intake, and it is a standard component in the industry.

[0027] As Figures 1 to 4 shown, the present application also provides a vibration testing mechanism 10, including a bottom plate 11, a product fixing device 12, a sensor fixing bracket 13, a vibration sensor 14, and an ammeter 151. The product fixing device 12 and the sensor fixing bracket 13 are both installed on the bottom plate 11. The vibration sensor 14 is installed on the sensor fixing bracket 13 and is used to detect the vibration amplitude and vibration frequency of the product 200. The product fixing device 12 is used to install the product 200 to be tested. A connecting member 1211 for electrically connecting with the product 200 is provided on the product fixing device 12. The vibration testing mechanism 10 supplies power to the product 200 through the connecting member 1211. The ammeter 151 is electrically connected to the connecting member 1211 and is used to detect the current when the product 200 is working. Among them, the product 200 is, for example, an electric toothbrush, and the connecting member 1211 is, for example, a probe. When the product 200 is being tested, it is without a housing, and power is supplied to the product 200 by contacting two power points on the circuit board of the product 200 through the probe. Of course, the connecting member 1211 can also be other interfaces, but the probe facilitates the disassembly and assembly of the product 200. The vibration sensor 14 is a laser sensor, so as to detect the vibration amplitude and vibration frequency of the product 200.

[0028] Further, the vibration testing mechanism 10 includes a voltmeter 152. The voltmeter 152 is electrically connected to the connecting member 1211 and is used to detect the voltage when the product 200 is working. The voltmeter 152 is electrically connected to the connecting member 1211 through the central controller. The voltmeter 152 can monitor whether the voltage value applied to the product 200 by the power supply exceeds the limit. If it exceeds the limit, the device will stop and alarm.

[0029] In this embodiment, the product fixing device 12 includes a lower template 121, an upper template 122, and a frame 123. The lower template 121 and the frame 123 are both installed on the bottom plate 11. The upper template 122 is slidably connected to the frame 123 and can slide up and down relative to the frame 123. The upper template 122 and the lower template 121 cooperate with each other and are jointly used to clamp the product 200. Among them, installation grooves matching the product 200 are provided on the opposite sides of the lower template 121 and the upper template 122, and the connecting member 1211 is arranged in the installation groove of the lower template 121.

[0030] As Figure 4As shown in the figure, a slide rail 1231 is provided on the frame 123, and the upper template 122 is provided with a chute that cooperates with the slide rail 1231. Through the mutual cooperation of the slide rail 1231 and the chute, the upper template 122 can slide on the frame 123. Of course, a slider can also be provided between the upper template 122 and the slide rail 1231. The slider is provided with a chute that cooperates with the slide rail 1231. The upper template 122 is fixed to the slider and slides on the frame 123 together with the slider.

[0031] Furthermore, the product fixing device 12 includes an operating rod 124, a connecting rod 125, and a linkage rod 126. One end of the operating rod 124 is rotatably connected to the frame 123, one end of the connecting rod 125 is rotatably connected to the operating rod 124, the other end of the connecting rod 125 is rotatably connected to one end of the linkage rod 126, and the other end of the linkage rod 126 is connected to the upper template 122. When the operating rod 124 rotates up and down, it can drive the linkage rod 126 and the upper template 122 to move up and down together. Optionally, the operating rod 124 is of a bent structure, such as a "√" shape, and the connecting rod 125 is rotatably connected to the bent portion of the operating rod 124, which is more convenient for employees to operate. By manually using the operating rod 124 by the employee, the separation and closing of the upper template 122 and the lower template 121 can be controlled. Of course, in other embodiments, a driving mechanism can also be provided to drive the upper template 122 to slide on the frame 123. The driving mechanism is, for example, a cylinder, a nut-screw structure, etc., so that manual operation is not required.

[0032] In this embodiment, the product fixing device 12 includes a switch driver 127. The switch driver 127 is installed on the upper template 122 shown and is used to drive the switch action of the product 200. Among them, the switch driver 127 is installed on the upper template 122. The switch driver 127 is, for example, a cylinder. Through the telescopic action of the moving end of the switch driver 127, the power switch on the product 200 is pressed. Optionally, the moving end of the switch driver 127 is provided with a pressing head, and the pressing head can be made of a flexible material such as rubber, so that the risk of damage to the product 200 can be reduced when pressing the power switch on the product 200.

[0033] Furthermore, a mounting plate 1212 is provided at the bottom of the lower template 121. The lower template 121 is fixed to the mounting plate 1212. A shock-absorbing pad 1213 is provided between the mounting plate 1212 and the bottom plate 11. By providing the shock-absorbing pad 1213 between the mounting plate 1212 and the bottom plate 11, the vibration transmitted to the bottom plate 11 of the vibration testing mechanism 10 can be reduced when testing the product 200. Among them, a fixing clamp 111 is provided on the bottom plate 11. The fixing clamp 111 is used to fix the mounting plate 1212 to the bottom plate 11 and sandwich the shock-absorbing pad 1213 between the mounting plate 1212 and the bottom plate 11.

[0034] In this embodiment, the sensor fixing bracket 13 includes a support bracket 131, a fixed slider 132 and a driving mechanism 133. The support bracket 131 is installed on the bottom plate 11. The fixed slider 132 is slidably connected to the support bracket 131 and can slide up and down relative to the support bracket 131. The driving mechanism 133 is installed on the support bracket 131 and is used to drive the fixed slider 132 to move up and down. The vibration sensor 14 is installed on the fixed slider 132 and moves synchronously with the fixed slider 132. Among them, a slide rail is provided on the support bracket 131, and a chute matching the slide rail is provided on the fixed slider 132. Through the mutual cooperation of the slide rail and the chute, the fixed slider 132 can slide on the support bracket 131. Of course, a slider can also be provided between the fixed slider 132 and the slide rail. The slider is provided with a chute matching the slide rail, and the fixed slider 132 is fixed to the slider and slides on the support bracket 131 together with the slider. The driving mechanism 133 can adopt a motor, and the up and down adjustment of the fixed slider 132 is realized by the forward and reverse rotation of the motor, so that the height of the vibration sensor 14 can be automatically adjusted to ensure that the vibration sensor 14 is aligned with the center point of the product 200. The height is automatically adjusted by judging the value in the vibration sensor 14. For example, when the data of the position (center point) to be detected is 2, the driving mechanism 133 will automatically adjust the height up and down to make the data of the vibration sensor 14 reach 2.

[0035] Further, a groove is provided on the upper side of the fixed slider 132, so as to avoid the product 200 as much as possible, so that the vibration sensor 14 can be aligned with the center point of the product 200.

[0036] Further, the vibration testing mechanism 10 includes a sensor controller 16. The sensor controller 16 is installed on the bottom plate 11. The sensor controller 16 is electrically connected to the vibration sensor 14 and is used to control the working state of the vibration sensor 14 and preliminarily process the detection data of the vibration sensor 14. The sensor controller 16 can display the value of the vibration sensor 14 and can set the range parameters. The vibration sensor 14 is electrically connected to the sensor controller 16, and the sensor controller 16 is then connected to the central controller, and the central controller is connected to the oscilloscope 27 to display the amplitude and frequency measured by the vibration sensor 14 on the oscilloscope 27.

[0037] The installation steps of the product 200 are as follows:

[0038] 1. Drive the separation of the upper template 122 and the lower template 121 through the operating rod 124;

[0039] 2. Place the product 200 in the lower template 121, and ensure that the connecting piece 1211 (probe) contacts two power supply points on the circuit board of the product 200;

[0040] 3. Drive the upper template 122 and the lower template 121 to close through the operating rod 124, and drive the upper template 122 to fix the product 200 between the upper template 122 and the lower template 121. The product 200 has no outer shell during testing, and the connecting piece 121 is used to supply power to the product 200.

[0041] The testing steps of the product 200 are as follows:

[0042] 1. Set the upper and lower limit parameters of the vibration amplitude, vibration frequency, current, and voltage on the touch screen 26;

[0043] 2. Start the device by pressing the start button 22, and the driving mechanism 133 automatically adjusts the height of the vibration sensor 14 to ensure that the vibration sensor 14 is aligned with the center point of the product 200;

[0044] 3. Automatically supply power to the product 200 through the connecting piece 1211 (probe);

[0045] 4. Press the power-on button on the product 200 through the switch driver 127 to turn on the product 200;

[0046] 5. When the product 200 is working, the ammeter 151 automatically detects the working current, and the voltmeter 152 automatically detects the working voltage; the vibration sensor 14 automatically detects the vibration amplitude and vibration frequency of the product 200, and cooperates with the oscilloscope 27 to display the detected vibration amplitude and vibration frequency;

[0047] When the vibration amplitude, vibration frequency, current value, and voltage value are all within the upper and lower limits at the same time, it is a good product, and the device stops testing and the green light is on; when any one of the vibration amplitude, vibration frequency, current value, and voltage value is not within the range, it is a defective product, and the device stops testing and the red light is on. Among them, the test status is displayed in real time on the touch screen 26, and each item has corresponding detection data and results.

[0048] 6. After the test is completed, the switch driver 127 presses the power-on button on the product 200 again to turn off the product 200.

[0049] The steps for taking out the product 200 are as follows:

[0050] 1. Drive the separation of the upper template 122 and the lower template 121 through the operating rod 124;

[0051] 2. Take out the product 200 from the lower template 121.

[0052] Through the vibration test device of the present application, it is possible to automatically adjust the position of the vibration sensor 14 and automatically turn on the product 200 for detection, and it is possible to simultaneously detect the working current, working voltage, vibration amplitude, and vibration frequency of the product 200, and then turn on the corresponding indicator light 24 according to the detection results.

[0053] In this text, the orientation terms such as up, down, left, right, front, and back are defined based on the positions of the structures in the attached drawings and their relative positions to each other, solely for the clarity and convenience of expressing the technical solution. It should be understood that the use of these orientation terms should not limit the scope of protection claimed in this application. It should also be understood that the terms "first" and "second" used herein are only for distinction in name and do not limit the quantity and sequence.

[0054] The above are only preferred embodiments of the present utility model and do not impose any formal limitations on the present utility model. Although the present utility model has been disclosed above with preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the relevant art can make some modifications or decorations using the disclosed technical content within the scope of the technical solution of the present utility model, which are equivalent embodiments of equivalent changes. However, as long as it does not depart from the technical solution content of the present utility model, any simple modifications, equivalent changes, and decorations made to the above embodiments based on the technical essence of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A vibration test mechanism, characterized in that, It includes a bottom plate (11), a product fixing device (12), a sensor fixing bracket (13), a vibration sensor (14), and an ammeter (151). The product fixing device (12) and the sensor fixing bracket (13) are both installed on the bottom plate (11). The product fixing device (12) is used to install the product (200) to be detected. The vibration sensor (14) is installed on the sensor fixing bracket (13) and is used to detect the vibration amplitude and vibration frequency of the product (200). A connecting piece (1211) for electrically connecting with the product (200) is provided on the product fixing device (12). The ammeter (151) is electrically connected to the connecting piece (1211) and is used to detect the current when the product (200) is working.

2. The vibration testing mechanism according to claim 1, wherein, The product fixing device (12) includes a lower template (121), an upper template (122), and a frame (123). The lower template (121) and the frame (123) are both installed on the bottom plate (11). The upper template (122) is slidably connected to the frame (123) and can slide up and down relative to the frame (123). The upper template (122) and the lower template (121) cooperate with each other and are jointly used to clamp the product (200).

3. The vibration testing mechanism according to claim 2, wherein The product fixing device (12) includes an operating rod (124), a connecting rod (125), and a linkage rod (126). One end of the operating rod (124) is rotatably connected to the frame (123). One end of the connecting rod (125) is rotatably connected to the operating rod (124). The other end of the connecting rod (125) is rotatably connected to one end of the linkage rod (126). The other end of the linkage rod (126) is connected to the upper template (122). When the operating rod (124) rotates up and down, it can drive the linkage rod (126) and the upper template (122) to move up and down together.

4. The vibration testing mechanism according to claim 2, wherein, The product fixing device (12) includes a switch driver (127). The switch driver (127) is installed on the upper template (122) and is used to drive the switch action of the product (200).

5. The vibration testing mechanism according to claim 2, wherein, An installation plate (1212) is provided at the bottom of the lower template (121). The lower template (121) is fixed to the installation plate (1212). A shock pad (1213) is provided between the installation plate (1212) and the bottom plate (11).

6. The vibration testing mechanism according to any one of claims 1-5, characterized in that, The sensor fixing bracket (13) includes a support frame (131), a fixed slider (132), and a driving mechanism (133). The support frame (131) is installed on the bottom plate (11). The fixed slider (132) is slidably connected to the support frame (131) and can slide up and down relative to the support frame (131). The driving mechanism (133) is installed on the support frame (131) and is used to drive the fixed slider (132) to move up and down. The vibration sensor (14) is installed on the fixed slider (132) and moves synchronously with the fixed slider (132).

7. The vibration testing mechanism according to any one of claims 1-5, characterized in that The vibration testing mechanism (10) includes a sensor controller (16). The sensor controller (16) is installed on the base plate (11), and the sensor controller (16) is electrically connected to the vibration sensor (14) and used to control the working state of the vibration sensor (14).

8. The vibration testing mechanism according to any one of claims 1-5, characterized in that, The vibration testing mechanism (10) includes a voltmeter (152). The voltmeter (152) is electrically connected to the connecting member (1211) and used to detect the voltage when the product (200) is working.

9. A vibration testing device, characterized in that, It includes a chassis (20), a central controller, and the vibration testing mechanism (10) according to any one of claims 1-8. The vibration testing mechanism (10) is installed in the chassis (20). The ammeter (151) is installed on the housing of the chassis (20). The central controller is electrically connected to the ammeter (151) and the connecting member (1211).

10. The vibration testing device according to claim 9, characterized in that, At least one of a power switch (21), a start button (22), a warning light (23), a detection indicator light (24), a USB interface (25), a touch screen (26), and an oscilloscope (27) is provided on the chassis (20). The power switch (21), the start button (22), the warning light (23), the detection indicator light (24), the USB interface (25), the touch screen (26), and the oscilloscope (27) are all electrically connected to the central controller.

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