CN216348757U

CN216348757U - Calibrating device for metering instrument equipment

Info

Publication number: CN216348757U
Application number: CN202122037595.6U
Authority: CN
Inventors: 买佳丽
Original assignee: Shanghai Institute of Measurement and Testing Technology
Current assignee: Shanghai Institute of Measurement and Testing Technology
Priority date: 2021-08-27
Filing date: 2021-08-27
Publication date: 2022-04-19
Anticipated expiration: 2031-08-27

Abstract

The utility model discloses a calibrating device for measuring instruments and equipment, which comprises a calibrating table, wherein a traction transmission mechanism is arranged on the calibrating table, a measuring instrument is placed on the traction transmission mechanism, the measuring instrument is fixed on the traction transmission mechanism through a clamping mechanism, the calibrating mechanism is arranged below the measuring instrument and is installed on the calibrating table, the calibrating mechanism comprises a fixed base plate, a static metal contact piece, a movable metal contact piece, an arc-shaped sliding block, a telescopic spring, a telescopic guide post and an alarm, the fixed base plate is installed on the calibrating table, the static metal contact piece is installed on the fixed base plate, the movable metal contact piece is arranged on one side of the static metal contact piece, and the movable metal contact pieces are installed on the end surfaces of two sides of the arc-shaped sliding block. The calibrating device for the metering instrument and the equipment can calibrate the flatness of the metering instrument through the calibrating mechanism, does not need an operator to visually measure the flatness of the ruler, can reduce the workload of the operator, and ensures that the calibrating result is accurate.

Description

Calibrating device for metering instrument equipment

Technical Field

The utility model relates to the technical field of measurement instrument calibration, in particular to a measurement instrument equipment calibration device.

Background

A metrology instrument, which is understood in a broad sense to refer to the whole field of knowledge about measurements, refers to a metrology instrument that converts measured values into directly observable indications or equivalent information. For example, balances, thermometers, ammeters, pressure gauges, etc. are commonly used metering instruments. The existing metrological specialties of length, heat, mechanics, electromagnetism, radio, time frequency, ionizing radiation, optics, acoustics, chemistry, etc. form an independent subject-metrology.

Measuring instruments, classified by the quantity to be measured, can be divided into ten categories: 1. a geometric quantity meter; 2. a temperature measuring instrument; 3. a mechanical metrology instrument; 4. an electromagnetic metrology instrument; 5. a radio (electronic) metrology instrument; 6. a time frequency meter; 7. an ionizing radiation gauge; 8. an optical metrology instrument; 9. an acoustic metrology instrument; 10. a stoichiometric instrument or substance.

After the measuring instrument is produced, the measuring instrument needs to be calibrated to check whether the measuring instrument is qualified or not, most of the existing calibration methods for the straight ruler are the flatness of the straight ruler visually inspected by operators, the calibration mode increases the workload of the operators, and the calibration result is inaccurate.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a calibrating device for measuring instruments, which can calibrate the flatness of the measuring instruments through a calibrating mechanism, does not need operators to visually measure the flatness of a ruler, can reduce the workload of the operators, ensures accurate calibrating results and can solve the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme:

a calibrating device for metering instrument equipment comprises a calibrating platform, a traction transmission mechanism is arranged on the calibrating platform, a measuring instrument is arranged on the traction transmission mechanism and is fixed on the traction transmission mechanism through a clamping mechanism, a verification mechanism is arranged below the metering instrument and is arranged on a verification platform, the calibration mechanism comprises a fixed base plate, a static metal contact piece, a movable metal contact piece, an arc-shaped sliding block, a telescopic spring, a telescopic guide post and an alarm, the fixed base plate is arranged on the verification table, a static metal contact piece is arranged on the fixed base plate, a movable metal contact piece is arranged on one side of the static metal contact piece, the movable metal contact pieces are installed on the end faces of the two sides of the arc-shaped sliding block, the arc-shaped sliding block is connected to the fixed base plate through the telescopic springs and the telescopic guide posts, and the fixed base plate is further provided with an alarm.

Preferably, traction drive mechanism is including drawing support, driving motor, transmission shaft, drive gear and straight-tooth rack, it inlays on examination bench to draw the support, draw and install the transmission shaft on the support, the both ends of transmission shaft are all installed on drawing the support through the bearing and the transmission shaft is connected with driving motor, driving motor installs in the side of drawing the support, drive gear is installed through the spline to the transmission shaft, drive gear and straight-tooth rack toothing, straight-tooth rack is fixed on examination bench.

Preferably, the detection table is provided with a strip-shaped groove for the traction support to move, and the traction support is driven by the driving motor to drive the transmission shaft and the driving gear to rotate so as to move in the strip-shaped groove.

Preferably, the clamping mechanism comprises a fixed support, a transmission screw rod and a clamping plate, the fixed support is arranged at the top of the traction support, the transmission screw rod is arranged on the fixed support, the transmission screw rod is in threaded connection with the clamping plate, and the measuring instrument is fixed on the clamping plate.

Preferably, the guide block is installed to the one end of clamping board, the guide block inlays in fixing support and moves on fixing support.

Preferably, the handle is installed at the upper end of the transmission screw rod, and the clamping plate drives the transmission screw rod to rotate through the handle so as to move up and down.

Preferably, the static metal contact piece is connected with the storage battery through a lead, the storage battery is connected with the alarm through a lead, and the alarm is connected with the movable metal contact piece through a lead.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model relates to a calibrating device for measuring instrument and equipment, which is characterized in that a measuring instrument is placed on a traction bracket, a transmission screw rod is driven to rotate by a handle, a clamping plate moves downwards under the guiding action of a guide block until the measuring instrument is fixed on the traction bracket by the clamping plate, a driving motor drives a transmission shaft and a driving gear to rotate, the traction bracket moves on a calibrating table, the traction bracket moves to enable the measuring instrument to move along with the traction bracket, if the measuring instrument is not flat in the moving process, the measuring instrument pushes an arc-shaped sliding block and a movable metal contact piece to move in the moving process, so that the movable metal contact piece is in contact with a static metal contact piece and gives an alarm, if the measuring instrument is flat, the measuring instrument does not push the arc-shaped sliding block and the movable metal contact piece to move, so that the movable metal contact piece is not in contact with the static metal contact piece and does not give an alarm, and the flatness of the measuring instrument can be calibrated by a calibrating mechanism, the flatness of the ruler is not required to be visually measured by an operator, the workload of the operator can be reduced, and the verification result is accurate.

Drawings

FIG. 1 is a schematic view of a metrological equipment verification device of the present invention;

FIG. 2 is an enlarged view of a portion of the gauge of the present invention secured to a traction drive;

FIG. 3 is an enlarged partial cross-sectional view of the gauge of the present invention secured to a traction drive;

FIG. 4 is an enlarged view taken at A of FIG. 2 in accordance with the present invention;

fig. 5 is an enlarged view of a portion of the verification mechanism of the present invention.

In the figure: 1. a verification platform; 2. a traction drive mechanism; 21. a traction support; 22. a drive motor; 23. a drive shaft; 24. a drive gear; 25. a straight rack gear; 3. a metering instrument; 4. a clamping mechanism; 41. a fixed support; 42. a transmission screw rod; 43. installing a clamping plate; 431. a guide block; 5. a verification mechanism; 51. fixing the substrate; 52. a static metal contact; 53. a movable metal contact piece; 54. an arc-shaped sliding block; 55. a tension spring; 56. a telescopic guide post; 57. an alarm; 6. a handle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, a measuring instrument equipment calibrating installation, including calibrating table 1, be provided with on calibrating table 1 and pull drive mechanism 2, the measuring instrument 3 has been placed on pulling drive mechanism 2, measuring instrument 3 is fixed on pulling drive mechanism 2 through clamping mechanism 4, the below of measuring instrument 3 is provided with verification mechanism 5, verification mechanism 5 is installed on calibrating table 1, can examine and determine the roughness of measuring instrument 3 through verification mechanism 5, do not need the roughness of operating personnel eyeballing scale, can alleviate operating personnel's work burden, and make the verification result accurate.

Referring to fig. 2-3, the traction transmission mechanism 2 includes a traction bracket 21, a driving motor 22, a transmission shaft 23, a driving gear 24 and a straight rack 25, the traction bracket 21 is embedded on the verification platform 1, the transmission shaft 23 is installed on the traction bracket 21, both ends of the transmission shaft 23 are installed on the traction bracket 21 through bearings, the transmission shaft 23 is connected with the driving motor 22, the driving motor 22 is installed on the side surface of the traction bracket 21, the driving gear 24 is installed on the transmission shaft 23 through splines, the driving gear 24 is meshed with the straight rack 25, the straight rack 25 is fixed on the verification platform 1, a strip-shaped groove for the traction bracket 21 to move is formed on the verification platform 1, the traction bracket 21 drives the transmission shaft 23 and the driving gear 24 to rotate through the driving motor 22 and moves in the strip-shaped groove, the driving motor 22 drives the transmission shaft 23 and the driving gear 24 to rotate, so that the traction bracket 21 moves on the verification platform 1, the movement of the traction carriage 21 causes the movement of the measuring device 3.

Referring to fig. 4, the clamping mechanism 4 includes a fixed support 41, a transmission screw rod 42 and a clamping plate 43, the fixed support 41 is installed on the top of the traction support 21, the transmission screw rod 42 is installed on the fixed support 41, the transmission screw rod 42 is connected with a clamping plate 43 in a threaded manner, the clamping plate 43 fixes the measuring instrument 3, one end of the clamping plate 43 is installed with a guide block 431, the guide block 431 is embedded in the fixed support 41 and moves on the fixed support 41, the upper end of the transmission screw rod 42 is installed with a handle 6, the clamping plate 43 drives the transmission screw rod 42 to rotate through the handle 6 and move up and down, the measuring instrument 3 is placed on the traction support 21, the transmission screw rod 42 is driven to rotate through the handle 6, the clamping plate 43 moves down under the guiding action of the guide block 431 until the clamping plate 43 fixes the measuring instrument 3 on the traction support 21, so as to facilitate the calibration of the measuring instrument 3, and can fix the measuring instruments 3 with different sizes, can meet the use requirements under different conditions.

Referring to fig. 5, the calibrating mechanism 5 comprises a fixed substrate 51, a static metal contact piece 52, a moving metal contact piece 53, an arc-shaped slider 54, a telescopic spring 55, a telescopic guide post 56 and an alarm 57, wherein the static metal contact piece 52 is connected with a storage battery through a lead, the storage battery is connected with the alarm 57 through a lead, the alarm 57 is connected with the moving metal contact piece 53 through a lead, when the measuring instrument 3 is moved, if the measuring instrument 3 is uneven, the measuring instrument 3 pushes the arc-shaped slider 54 and the moving metal contact piece 53 to move in the moving process, the moving metal contact piece 53 is contacted with the static metal contact piece 52 and alarms, if the measuring instrument 3 is even, the measuring instrument 3 does not push the arc-shaped slider 54 and the moving metal contact piece 53 to move, the moving metal contact piece 53 is not contacted with the static metal contact piece 52 and does not alarm, the flatness of the measuring instrument 3 can be calibrated through the calibrating mechanism 5, the flatness of the ruler is not required to be measured by an operator, the workload of the operator can be reduced, the verification result is accurate, the fixed base plate 51 is installed on the verification table 1, the fixed base plate 51 is provided with the static metal contact piece 52, one side of the static metal contact piece 52 is provided with the movable metal contact piece 53, the movable metal contact piece 53 is installed on the end faces of the two sides of the arc-shaped sliding block 54, the arc-shaped sliding block 54 is connected onto the fixed base plate 51 through the telescopic spring 55 and the telescopic guide post 56, and the alarm 57 is further installed on the fixed base plate 51.

In summary, in the calibrating apparatus for measuring instrument and equipment of the present invention, the measuring instrument 3 is placed on the traction support 21, the transmission screw rod 42 is driven to rotate by the handle 6, the clamping plate 43 moves downwards under the guiding action of the guiding block 431 until the clamping plate 43 fixes the measuring instrument 3 on the traction support 21, the driving motor 22 drives the transmission shaft 23 and the driving gear 24 to rotate, the traction support 21 moves on the calibrating table 1, the measuring instrument 3 moves along with the traction support 21, if the measuring instrument 3 is uneven during the moving process of the measuring instrument 3, the measuring instrument 3 pushes the arc-shaped sliding block 54 and the movable metal contact piece 53 to move, the movable metal contact piece 53 contacts with the static metal contact piece 52 and gives an alarm, if the measuring instrument 3 is even, the measuring instrument 3 does not push the arc-shaped sliding block 54 and the movable metal contact piece 53 to move during the moving process, the movable metal contact piece 53 is not in contact with the static metal contact piece 52 and does not give an alarm, the flatness of the metering instrument 3 can be verified through the verification mechanism 5, an operator does not need to visually observe the flatness of the ruler, the workload of the operator can be reduced, and the verification result is accurate.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a measuring instrument equipment calibrating installation, includes examination platform (1), its characterized in that: the detection device is characterized in that a traction transmission mechanism (2) is arranged on the detection platform (1), a measuring instrument (3) is placed on the traction transmission mechanism (2), the measuring instrument (3) is fixed on the traction transmission mechanism (2) through a clamping mechanism (4), a detection mechanism (5) is arranged below the measuring instrument (3), the detection mechanism (5) is installed on the detection platform (1), the detection mechanism (5) comprises a fixed base plate (51), a static metal contact piece (52), a movable metal contact piece (53), an arc-shaped sliding block (54), a telescopic spring (55), a telescopic guide column (56) and an alarm (57), the fixed base plate (51) is installed on the detection platform (1), the static metal contact piece (52) is installed on the fixed base plate (51), the movable metal contact piece (53) is arranged on one side of the static metal contact piece (52), the movable metal contact piece (53) is installed on the end faces of two sides of the arc-shaped sliding block (54), arc slider (54) are connected on fixed base plate (51) through expanding spring (55) and flexible guide post (56), still install alarm (57) on fixed base plate (51).

2. A metrological apparatus as claimed in claim 1, wherein: traction drive mechanism (2) is including drawing support (21), driving motor (22), transmission shaft (23), drive gear (24) and straight-tooth rack (25), it inlays on examination platform (1) to draw support (21), install transmission shaft (23) on drawing support (21), the both ends of transmission shaft (23) are all installed through the bearing and are being connected on drawing support (21) and transmission shaft (23) and driving motor (22), driving motor (22) are installed in the side of drawing support (21), drive gear (24) are installed through the spline in transmission shaft (23), drive gear (24) and straight-tooth rack (25) mesh, straight-tooth rack (25) are fixed on examination platform (1).

3. A metrological apparatus as claimed in claim 2, wherein: the detection table (1) is provided with a strip-shaped groove for the traction support (21) to move, and the traction support (21) is driven by a driving motor (22) to drive a transmission shaft (23) and a driving gear (24) to rotate and move in the strip-shaped groove.

4. A metrological apparatus as claimed in claim 1, wherein: clamping mechanism (4) include fixing support (41), transmission lead screw (42) and clamping board (43), the top at traction support (21) is installed in fixing support (41), install transmission lead screw (42) on fixing support (41), transmission lead screw (42) threaded connection has clamping board (43), clamping board (43) fixed measuring instrument (3).

5. A metrological apparatus as claimed in claim 4, wherein: a guide block (431) is installed at one end of the clamping plate (43), and the guide block (431) is embedded in the fixed support (41) and moves on the fixed support (41).

6. A metrological apparatus as claimed in claim 4, wherein: the handle (6) is installed to the upper end of transmission lead screw (42), dress splint (43) are rotatory and the lift removal through handle (6) drive transmission lead screw (42).

7. A metrological apparatus as claimed in claim 1, wherein: the static metal contact piece (52) is connected with the storage battery through a lead, the storage battery is connected with the alarm (57) through a lead, and the alarm (57) is connected with the movable metal contact piece (53) through a lead.