Visual positioning calibration clamp for traceability of digital display vibration meter

Abstract

The invention provides a visual positioning calibration clamp for traceability of a digital display vibration meter, which is characterized in that a bearing seat is arranged on the upper side of a working table, the center of the bearing seat is provided with an accommodating cavity, a table body of a vibration exciter is positioned in the accommodating cavity, the vibration exciter and a standard vibration sensor are coaxial with the bearing seat, and a sensor of the calibrated vibration meter is fixed with the standard sensor; the bearing is installed on the side wall of the containing cavity, the bearing lining is arranged on the inner side of the bearing in a sleeving mode and provided with an extension part, the extension part is fixedly connected with a rotating disc, and the rotating disc is connected with a visual recognition assembly; the extension part is fixedly connected with a gear ring, the gear ring is in meshed connection with a transmission gear, and a driving assembly is mounted on the working table; the transmission gear rotates to drive the gear ring to rotate, so that the bearing lining, the rotating disc and the visual identification assembly rotate around the axis of the bearing seat to adjust the position of the visual identification assembly, and the visual identification assembly rotates around the vibration exciter, so that the time delayed by personnel continuously adjusting station observation data in the traceability process of a traditional vibration meter is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of vibration meter calibration, and in particular to a visual positioning calibration fixture for tracing a digital display vibration meter. Background Art

[0002] Traditional vibration meter traceability typically relies on manual observation of the instrument's readings, comparing them to standard results, and evaluating performance. When the instrument's LCD display is facing away from the inspector's viewing position, repeated adjustments are necessary, creating a time-consuming and cumbersome process that impacts inspection efficiency. Furthermore, if an optical camera is used to monitor the readings, repeated adjustments to the camera's position are necessary based on the instrument's size and form, further impacting inspection efficiency. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a visual positioning and calibration fixture for tracing a digital vibration meter, which can reduce the time wasted by personnel constantly adjusting workstation observation data.

[0004] The present invention is achieved in that: The present invention provides a visual positioning calibration fixture for tracing a digital display vibration meter, comprising: a work surface, a bearing seat, a bearing, a bearing liner, a vibration exciter, a standard vibration sensor and a calibrated vibration meter; The bearing seat is arranged on the upper side of the work table, and a receiving cavity is provided at the center of the bearing seat. The platform of the exciter is located in the receiving cavity. The standard vibration sensor is installed on the top of the exciter, and the calibrated vibrometer is installed on the top of the standard vibration sensor. The exciter and the standard vibration sensor are coaxial with the bearing seat. The bearing is mounted on the side wall of the accommodating cavity, the bearing liner is arranged inside the bearing, the bearing liner has an extension portion extending in its circumferential direction, the extension portion is fixedly connected to a turntable, and the turntable is connected to a visual recognition component for monitoring the reading of the calibrated vibration meter; The extension portion is fixedly connected to a gear ring, the gear ring is meshedly connected to a transmission gear, and the work surface is installed with a driving assembly that drives the transmission gear to rotate; The transmission gear rotates to drive the ring gear to rotate, so that the bearing liner, the turntable and the visual recognition component rotate around the axis of the bearing seat to adjust the position of the visual recognition component.

[0005] Furthermore, the driving assembly includes: a commutator output shaft, an output bevel gear, an input bevel gear, a commutator input shaft and a commutator outer frame; The commutator output shaft and the commutator input shaft are both rotatably connected to the commutator outer frame. One end of the commutator output shaft is rigidly connected to the output bevel gear, and the other end is rigidly connected to the transmission gear. One end of the commutator input shaft is fixedly connected to the input bevel gear, and the output bevel gear is meshed with the input bevel gear.

[0006] Furthermore, the drive assembly also includes a commutator fixing seat, the commutator fixing seat is fixedly connected to the work surface, and the commutator outer frame is fixed on the top of the commutator fixing seat.

[0007] Furthermore, it also includes a vertical seat, and the commutator input shaft is rotatably connected to the vertical seat.

[0008] Furthermore, one end of the commutator input shaft away from the input bevel gear is connected to a handwheel.

[0009] Furthermore, it also includes a fixing plate for fixing the turntable, and the turntable is clamped between the fixing plate and the bearing liner by bolts.

[0010] Furthermore, the turntable has a square installation station, and the visual recognition component is installed on the installation station. The visual recognition component includes a sliding adjustment plate, a flange, a slide rail, a slider, a fastening bolt, a mounting plate, a light source, a camera fixing seat and a camera; The sliding adjustment plate is provided with a waist-shaped hole, and a first bolt fixing the sliding adjustment plate passes through the waist-shaped hole and is connected to the installation station, the flange is fixed to the top of the sliding adjustment plate, the slide rail is vertically installed on the flange, the slider is slidably connected to the slide rail, the fastening bolt is screwed to the slider, and when the fastening bolt abuts against the slide rail, the slider is fixed on the slide rail; The mounting plate is fixedly connected to the slider, the camera fixing seat is installed in the middle of the mounting plate, the camera is connected to the camera fixing seat, and two light sources are provided, which are respectively located on the upper and lower sides of the camera.

[0011] Furthermore, the bearing seat is fixed to the top of the work surface through a support column.

[0012] Furthermore, the work surface is provided with a through hole, and the lower end of the exciter passes through the through hole and is fixed to the foundation.

[0013] The advantages of the present invention are: 1. The visual positioning calibration device for digital vibration meter traceability of the present invention can drive the gear ring and the turntable to rotate when the handwheel rotates through gear transmission, thereby realizing the rotational movement of the visual recognition component based on the vibration meter traceability around the vibrator, avoiding the time wasted by personnel constantly adjusting the workstation observation data during the traditional vibration meter traceability process.

[0014] 2. In the present invention, the lower end of the vibrator is fixed to the foundation through a through hole, thereby avoiding a rigid connection between the vibrator and the work surface, and reducing the influence of the vibration of the vibrator on the imaging quality of the visual recognition component during use while maintaining the relative position unchanged.

[0015] 3. On the basis of maintaining the horizontal alignment of the camera, sliders and fastening bolts are used to assist in the vertical adjustment of the visual recognition component, which broadens the observable range of the visual recognition component and improves the universality of the visual recognition component. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of a visual positioning calibration fixture for tracing the source of a digital vibration meter in the present invention.

[0018] Figure 2 This is a schematic diagram of the connection between the bearing seat, bearing, bearing liner, turntable and fixed plate in the present invention.

[0019] Figure 3 Schematic diagram of the connection structure between the transmission gear and the drive assembly in the present invention; Figure 4 Schematic diagram of the meshing of the ring gear and the transmission gear in the present invention; Figure 5 Schematic diagram of the structure of the visual recognition component in the present invention; Figure 6 This is a schematic diagram of the exploded structure of the visual identification component in the present invention after the sliding adjustment plate is hidden.

[0020] Description of the numbers in the figure: 100. Work surface; 110. Support column; 120. Bearing seat; 130. Turntable; 140. Fixing plate; 150. Bearing; 160. Bearing lining; 170. Vibrator; 180. Standard vibration sensor; 190. Calibrated vibrometer; 200. Ring gear; 210. Transmission gear; 220. Commutator output shaft; 230. Commutator outer frame; 240. Output bevel gear; 250. Input bevel gear; 260. Commutator input shaft; 270. Commutator fixing seat; 290. Handwheel; 300. Sliding adjustment plate; 310. Flange; 320. Fastening bolts; 330. Slider; 340. Slide rail; 350. Mounting plate; 360. Camera fixing seat; 370. Light source; 380. Camera; 390. Shaft end limiter; 400. Vertical seat. DETAILED DESCRIPTION

[0021] See also Figures 1 to 6The present invention provides a visual positioning calibration fixture for tracing a digital display vibrometer, comprising: a work surface 100, a bearing seat 120, a bearing 150, a bearing liner 160, a vibrator 170, a standard vibration sensor 180, and a vibrometer to be calibrated 190; the bearing seat 120 is in a hollow circular shape; The bearing seat 120 is provided on the upper side of the work surface 100. The center of the bearing seat 120 has an accommodating cavity. The body of the vibration exciter 170 is located in the accommodating cavity. The standard vibration sensor 180 is mounted on the top of the vibration exciter 170. The calibrated vibrometer 190 is mounted on the top of the standard vibration sensor 180. The vibration exciter 170 and the standard vibration sensor 180 are coaxial with the bearing seat 120. The bearing 150 is mounted on the side wall of the accommodating cavity, and the bearing liner 160 is sleeved inside the bearing 150. The bearing liner 160 has an extension extending in its circumferential direction. The extension is fixedly connected to the turntable 130. The turntable 130 is connected to a visual recognition component for monitoring the reading of the calibrated vibration meter 190. The outer extension is fixedly connected to a gear ring 200, the gear ring 200 is meshed with a transmission gear 210, and the work surface 100 is equipped with a driving assembly for driving the transmission gear 210 to rotate; The driving assembly drives the transmission gear 210 to rotate, thereby driving the ring gear 200 to rotate, so that the bearing liner 160, the turntable 130 and the visual recognition assembly rotate around the axis of the bearing seat 120 to adjust the position of the visual recognition assembly.

[0022] Specifically, the driving assembly includes: a commutator output shaft 220, an output bevel gear 240, an input bevel gear 250, a commutator input shaft 260 and a commutator outer frame 230; The commutator output shaft 220 and the commutator input shaft 260 are both rotatably connected to the commutator outer frame 230. One end of the commutator output shaft 220 is rigidly connected to the output bevel gear 240, and the other end is rigidly connected to the transmission gear 210. Figure 3 As shown, a shaft end stopper 390 is provided at the upper end of the commutator output shaft 220. The shaft end stopper 390 is used to prevent axial runout during the movement of the transmission gear 210. The commutator output shaft 220 also has a positioning shoulder, which axially positions the commutator output shaft 220 relative to the commutator outer frame 230. The lower end of the commutator output shaft 220 extends into the inner side of the commutator outer frame 230. The end of the commutator input shaft 260 close to the input bevel gear 250 also has a shaft shoulder, and the commutator output shaft 220 is axially positioned on the commutator outer frame 230 through the shaft shoulder, so that the relative position of the commutator input shaft 260 and the commutator outer frame 230 remains unchanged.

[0023] One end of the commutator input shaft 260 is fixedly connected to the input bevel gear 250 , and the output bevel gear 240 is meshedly connected to the input bevel gear 250 .

[0024] In addition to using bevel gear transmission, the drive component can also be driven in the form of a worm gear. In this case, the worm gear is connected to the commutator output shaft 220, and one end of the commutator input shaft 260 is processed into a worm structure or one end of the commutator input shaft 260 is connected to the worm. The worm is meshed with the worm gear. When the commutator input shaft 260 rotates, it drives the worm to rotate, and through the meshing transmission of the worm gear, it drives the commutator output shaft 220 to rotate.

[0025] Specifically, the driving assembly further includes a commutator fixing seat 270 , the commutator fixing seat 270 is fixedly connected to the work surface 100 , and the commutator outer frame 230 is fixed on the top of the commutator fixing seat 270 .

[0026] Specifically, a vertical seat 400 is further included, and the commutator input shaft 260 is rotatably connected to the vertical seat 400 .

[0027] Specifically, one end of the commutator input shaft 260 away from the input bevel gear 250 is connected to a handwheel 290 .

[0028] Specifically, a fixing plate 140 for fixing the turntable 130 is further included. The turntable 130 is clamped between the fixing plate 140 and the bearing liner 160 by bolts.

[0029] Specifically, the turntable 130 has a square installation station, and the visual recognition component is installed on the installation station. The visual recognition component includes a sliding adjustment plate 300, a flange 310, a slide rail 340, a slider 330, a fastening bolt 320, a mounting plate 350, a light source 370, a camera fixing seat 360, and a camera 380; The sliding adjustment plate 300 has a waist-shaped hole through which a first bolt securing the sliding adjustment plate 300 passes to connect to the mounting station. The waist-shaped hole extends along the length of the mounting plate 350. The waist-shaped hole in the sliding adjustment plate 300 allows for adjustment of the mounting position of the sliding adjustment plate 300, thereby adjusting the focus position of the camera 380 and the image quality.

[0030] The flange 310 is fixed on the top of the sliding adjustment plate 300, the slide rail 340 is vertically installed on the flange 310, the slider 330 is slidably connected to the slide rail 340, the fastening bolt 320 is screwed to the slider 330, and when the fastening bolt 320 abuts against the slide rail 340, the slider 330 is fixed on the slide rail 340; by adjusting the position of the slider 330 on the slide rail 340, the LCD screen of the calibrated vibrometer 190 is located in a vertical position in the field of view of the camera 380.

[0031] The mounting plate 350 is fixedly connected to the slider 330, the camera fixing seat 360 is installed in the middle of the mounting plate 350, the camera 380 is connected to the camera fixing seat 360, and two light sources 370 are provided. The two light sources 370 are respectively located on the upper and lower sides of the camera 380, that is, one of the light sources 370 is arranged above the camera 380, and the other light source 370 is arranged below the camera 380.

[0032] Specifically, the bearing seat 120 is fixed on the top of the work surface 100 through the support column 110.

[0033] Specifically, the work surface 100 is provided with a through-hole larger than the size of the vibrator 170. The lower end of the vibrator 170 passes through the through-hole and is fixed to the foundation. If the vibrator 170 is directly mounted on the work surface 100, the vibration generated by the vibrator 170 during operation will affect the imaging quality of the visual recognition component. However, connecting the lower end of the vibrator 170 to the foundation reduces the impact of the vibration of the vibrator 170 on the imaging quality of the visual recognition component during use.

[0034] A specific application of the present invention is: After the standard vibration sensor 180 and the calibrated vibrometer 190 are installed in the preset positions, if at this time, the position of the camera 380 deviates from the LCD screen of the calibrated vibrometer 190, the position of the camera 380 can be adjusted by rotating the handwheel 290, thereby avoiding the traditional vibrometer tracing process and reducing the time wasted by personnel constantly adjusting the workstation observation data.

[0035] The rotation of the handwheel 290 drives the commutator input shaft 260 to rotate. Under the meshing action of the input bevel gear 250 and the output bevel gear 240, the commutator output shaft 220 and the transmission gear 210 rotate. Under the gear meshing transmission action, the ring gear 200 and the bearing liner 160 rotate. Under the fixed connection of the fixed plate 140, the turntable 130 for installing the visual recognition component rotates around its own center, ultimately ensuring that the camera 380 rotates around the center of the ring gear 200, and the lens of the camera 380 always points to the rotation center axis of the turntable 130. By rotating the camera 380 around the center of the ring gear 200, the time wasted by personnel constantly adjusting the observation data at the workstation in the traceability process of the traditional vibration meter is avoided.

[0036] For the calibrated vibrometer 190 with a special shape, the field of view position of the camera 380 can be adjusted by moving the slide rail 340 and the slider 330 up and down; specifically: During adjustment, first loosen the fastening bolt 320 so that the slider 330 can slide up and down along the slide rail 340. When the height of the camera 380 is adjusted to a position flush with the display area of ​​the calibrated vibrometer 190, tighten the fastening bolt 320 so that the end of the fastening bolt 320 abuts against the slide rail 340 to fix the position of the slider 330.

[0037] In addition, the focus position of the camera 380 lens can be further adjusted with the help of the sliding adjustment plate 300 to ensure image quality. When adjusting, loosen the first bolt and push the sliding adjustment plate 300 along the length of the installation station to adjust the focus position of the camera 380 lens to ensure image quality.

[0038] While ensuring that the positions of the vibration table, the standard vibration sensor 180 and the calibrated vibrometer 190 remain unchanged, the position of the camera 380 is adjusted with multiple degrees of freedom to ensure that the vision system can effectively capture the LCD display readings.

[0039] The advantage of the present invention is that: the present invention can drive the ring gear 200 and the turntable 130 to rotate when the hand wheel 290 rotates through gear transmission, thereby realizing the rotational movement of the visual recognition component around the vibrator 170 based on the traceability of the vibrometer, avoiding the time wasted by personnel constantly adjusting the workstation observation data during the traceability process of the traditional vibrometer. In the present invention, the lower end of the vibrator 170 is fixed to the foundation through a through hole, avoiding the rigid connection between the vibrator 170 and the work table 100, and reducing the impact of the vibration of the vibrator 170 on the imaging quality of the visual recognition component during use while maintaining the relative position unchanged. On the basis of maintaining the horizontal alignment of the camera 380, the slider 330 and the fastening bolt 320 are used to assist in the vertical adjustment of the visual recognition component, which broadens the observable range of the visual recognition component and improves the universality of the visual recognition component.

[0040] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A visual positioning calibration fixture for digital vibration meter traceability, characterized by: include: Work surface, bearing seat, bearing, bearing liner, vibrator, standard vibration sensor and calibrated vibration meter; The bearing seat is arranged on the upper side of the work surface, and a receiving cavity is provided at the center of the bearing seat. The platform of the exciter is located in the receiving cavity. The standard vibration sensor is installed on the top of the exciter, and the calibrated vibrometer is installed on the top of the standard vibration sensor. The exciter and the standard vibration sensor are coaxial with the bearing seat. The bearing is mounted on the side wall of the accommodating cavity, the bearing liner is sleeved inside the bearing, the bearing liner has an extension portion extending in its circumferential direction, the extension portion is fixedly connected to a turntable, and the turntable is connected to a visual recognition component for monitoring the reading of the calibrated vibration meter; The extension portion is fixedly connected to a gear ring, the gear ring is meshedly connected to a transmission gear, and the work surface is installed with a driving assembly that drives the transmission gear to rotate; The transmission gear rotates to drive the ring gear to rotate, so that the bearing liner, the turntable and the visual recognition component rotate around the axis of the bearing seat to adjust the position of the visual recognition component.

2. A visual positioning calibration fixture for tracing a digital vibration meter according to claim 1, characterized in that: The drive assembly includes: a commutator output shaft, an output bevel gear, an input bevel gear, a commutator input shaft and a commutator outer frame; The commutator output shaft and the commutator input shaft are both rotatably connected to the commutator outer frame, one end of the commutator output shaft is rigidly connected to the output bevel gear, and the other end is rigidly connected to the transmission gear, one end of the commutator input shaft is fixedly connected to the input bevel gear, and the output bevel gear is meshed with the input bevel gear.

3. A visual positioning calibration fixture for tracing a digital vibration meter according to claim 2, characterized in that: The driving assembly further comprises a commutator fixing seat, the commutator fixing seat is fixedly connected to the work table, and the commutator outer frame is fixed on the top of the commutator fixing seat.

4. The visual positioning calibration fixture for tracing a digital vibration meter according to claim 2, characterized in that: The driving assembly further includes a vertical seat, and the commutator input shaft is rotatably connected to the vertical seat.

5. The visual positioning calibration fixture for tracing a digital vibration meter according to claim 2, characterized in that: One end of the commutator input shaft away from the input bevel gear is connected with a hand wheel.

6. The visual positioning calibration fixture for tracing a digital vibration meter according to claim 1, characterized in that: The utility model further comprises a fixing plate for fixing the turntable, and the turntable is clamped between the fixing plate and the bearing liner by bolts.

7. The visual positioning calibration fixture for tracing a digital vibration meter according to claim 1, characterized in that: The turntable has a square installation station, and the visual recognition component is installed on the installation station. The visual recognition component includes a sliding adjustment plate, a flange, a slide rail, a slider, a fastening bolt, a mounting plate, a light source, a camera fixing seat and a camera; The sliding adjustment plate is provided with a waist-shaped hole, and a first bolt fixing the sliding adjustment plate passes through the waist-shaped hole and is connected to the installation station, the flange is fixed to the top of the sliding adjustment plate, the slide rail is vertically installed on the flange, the slider is slidably connected to the slide rail, the fastening bolt is screwed to the slider, and when the fastening bolt abuts against the slide rail, the slider is fixed to the slide rail; The mounting plate is fixedly connected to the slider, the camera fixing seat is installed in the middle of the mounting plate, the camera is connected to the camera fixing seat, and two light sources are provided, which are respectively located on the upper and lower sides of the camera.

8. The visual positioning calibration fixture for tracing a digital vibration meter according to claim 1, characterized in that: The bearing seat is fixed on the top of the work table through a support column.

9. The visual positioning calibration fixture for tracing a digital vibration meter according to claim 1, characterized in that: The work surface is provided with a through hole, and the lower end of the exciter passes through the through hole and is fixed to the foundation.

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