CN213579901U

CN213579901U - Metering calibration device for mechanical instrument

Info

Publication number: CN213579901U
Application number: CN202022848444.4U
Authority: CN
Inventors: 顾旭东
Original assignee: Nantong Hengshi Measurement And Testing Co ltd
Current assignee: Nantong Hengshi Measurement And Testing Co ltd
Priority date: 2020-12-01
Filing date: 2020-12-01
Publication date: 2021-06-29
Anticipated expiration: 2030-12-01

Abstract

The utility model discloses a metering calibration device for a mechanical instrument, which comprises an outer shell and a central disc; an outer shell: the side of the upper end and the lower end of the right half part are both provided with outer through holes, a zero setting rotating ring is penetrated through in the middle-end inner rotation of the outer shell, lifting rods are inserted in the upper end and the lower end of the outer shell in an up-and-down movable mode, the upper ends of the upper lifting rods are fixed with first contact bases, and the lower ends of the lower lifting rods are fixed with second contact bases. The metering and calibrating device for the mechanical instrument can firstly turn over the mechanical instrument, test the accuracy of the mechanical instrument from different placing directions, and after the accuracy of the mechanical instrument is adjusted, the mechanical instrument is metered and calibrated, so that the calibration accuracy of the mechanical instrument is ensured, calibration is carried out through larger tension or pressure, the error value caused by small factors can be ignored, and various mechanical instruments such as a spring dynamometer can be tested, and the application range is wide.

Description

Metering calibration device for mechanical instrument

Technical Field

The utility model relates to a mechanical instrument calibration technical field specifically is a measurement calibrating device for mechanical instrument.

Background

Mechanical instruments are common devices in life, and metering and calibrating devices for the mechanical instruments are important components of the mechanical instruments, so that the devices on the market are various and can basically meet the use requirements of people, however, there still remain certain problems, for example, that the conventional metering calibration device for mechanical instrument has inconvenient calibration, thus making it extremely inconvenient to use and different mechanical instruments are calibrated differently, for example a spring dynamometer measures weight by pulling a hook downwards by a weight, during calibration, it is necessary to observe the scale value when no weight is hung on the scale, and for example, a common scale observes the indication value when no weight is placed on the scale, the mechanical instruments are calibrated by observing an indicated value without hanging a heavy object or placing a heavy object, some small gravitational forces change the calibration result, so the result is less accurate.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is overcome current defect, a measurement calibrating device for mechanical instrument is provided, at first can carry out self and reverse, from the different direction of placing accuracy of testing self, treat to adjust the accuracy of self after, measure the calibration to mechanical instrument again, guarantee the accuracy to mechanical instrument calibration with this, and calibrate through great pulling force or pressure, make the error value that small factor brought negligible, and multiple mechanical instruments such as testable spring dynamometer, and wide application, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a metering calibration device for a mechanical instrument comprises an outer shell and a central disc;

an outer shell: the side surfaces of the upper end and the lower end of the right half part are both provided with outer through holes, a zero setting rotating ring passes through the middle end of the outer shell in a rotating way, lifting rods are inserted into the upper end and the lower end of the outer shell in a vertically movable way, the upper end of the upper lifting rod is fixed with a first contact seat, the lower end of the lower lifting rod is fixed with a second contact seat, a hanging rod is fixed into the lower end of the second contact seat, one end of each of the two lifting rods, which is close to each other, is fixed with a first spring, the other end of each of the two first springs is fixed with a lifting disc, the two lifting discs are respectively inserted into the upper end and the lower end of the outer shell in a vertically movable way, the side surface of the right half part of each lifting disc is fixed with an indicating disc, the other end of each indicating disc vertically movably passes through the outer through holes, the two lifting discs drive the indicating discs to move, whether the device, whether the moving distances of the mechanical instrument and the indicating disc are consistent or not can be observed, and therefore the mechanical instrument is calibrated;

a central disc: the screw thread alternates in the zero setting circle, the upper and lower side of center disk all is fixed with the second spring, and the other end of two second springs is fixed respectively in the one side that two lifting disks are close to each other, drives the center disk through rotating the zero setting circle and reciprocates to this zero setting is carried out to this device self, avoids this device self to have the mistake and influences the calibration accuracy of mechanics instrument.

Furthermore, friction increasing grooves are arranged in a circular array on the side face of the zero setting rotary ring, and the zero setting rotary ring is convenient to rotate through the friction increasing grooves.

Further, still including connecting the handle, it has two and circular array to arrange at the middle-end lateral surface of shells to connect the handle, zero setting circle is located between two connection handles, can fix the upper and lower end of shell body through connecting the handle to conveniently promote or press this device wholly when the calibration.

Further, still including the scale, the scale has two and fixes the upper and lower terminal side at the right half of shell body respectively, the scale corresponds the setting with the instruction disk about, can be accurate and audio-visual instruction disk's displacement through the scale.

Further, still including the balancing weight, the circular array of balancing weight arranges the lateral surface at the second contact seat, reduces the weight difference value of first contact seat and second contact seat through the balancing weight and to the influence of calibration.

Compared with the prior art, the beneficial effects of the utility model are that: this measurement calibrating device for mechanical instrument has following benefit:

1. drive the dial through two lifting disks and remove, can contrast the displacement distance of two dials and judge whether this device self is accurate, when this device is pressed or hangs on mechanical instrument, can observe whether unanimous mechanical instrument and dial displacement distance to this calibrates mechanical instrument, drives the center plate through rotating zero setting circle and reciprocates, zero setting with this to this device self, avoids this device self to have the mistake and influence the calibration accuracy of mechanical instrument.

2. The zero-setting rotating ring is conveniently rotated through the friction increasing groove, the upper end and the lower end of the outer shell can be fixed through the connecting handle, the device is convenient to push or press the whole body during calibration, the moving distance of the indicating dial can be accurately and visually indicated through the graduated scale, and the influence of the weight difference value of the first contact seat and the second contact seat on calibration is reduced through the balancing weight.

3. The metering and calibrating device for the mechanical instrument can firstly turn over the mechanical instrument, test the accuracy of the mechanical instrument from different placing directions, and after the accuracy of the mechanical instrument is adjusted, the mechanical instrument is metered and calibrated, so that the calibration accuracy of the mechanical instrument is ensured, calibration is carried out through larger tension or pressure, the error value caused by small factors can be ignored, and various mechanical instruments such as a spring dynamometer can be tested, and the application range is wide.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic top view of the present invention;

fig. 3 is a schematic view of the cross-sectional structure at a-a of the present invention.

In the figure: 1 first contact base, 2 lifter, 3 outer casings, 4 connection handles, 5 zero setting circles, 6 balancing weights, 7 second contact bases, 8 scales, 9 indicating discs, 10 peg, 11 first springs, 12 lifter discs, 13 second springs, 14 center plates.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a metering calibration device for a mechanical instrument comprises an outer shell 3 and a central disc 14;

an outer shell 3: the side surfaces of the upper end and the lower end of the right half part are both provided with outer through holes, a zero setting rotating ring 5 penetrates through the middle end of the outer shell 3 in a rotating manner, lifting rods 2 are inserted into the upper end and the lower end of the outer shell 3 in an up-and-down movable manner, the upper end of the upper lifting rod 2 is fixed with a first contact base 1, the lower end of the lower lifting rod 2 is fixed with a second contact base 7, a hanging rod 10 is fixed into the lower end of the second contact base 7, one end of the two lifting rods 2 close to each other is fixed with a first spring 11, the other end of the two first springs 11 is fixed with a lifting disc 12, the two lifting discs 12 are respectively inserted into the upper end and the lower end of the outer shell 3 in an up-and-down movable manner, an indicating disc 9 is fixed on the side surface of the right half part of the lifting disc 12, the other end of the indicating disc 9 penetrates through the outer through holes in an up, when the device is pressed or hung on a mechanical instrument, whether the moving distance of the mechanical instrument is consistent with that of the indicating dial 9 can be observed, the mechanical instrument is calibrated, the friction increasing grooves are arranged in a side circular array of the zero setting rotating ring 5, the zero setting rotating ring 5 is convenient to rotate through the friction increasing grooves, the device also comprises a connecting handle 4, the connecting handle 4 is provided with two circular arrays which are arranged on the outer side surface of the middle end of the outer shell 3, the zero setting rotating ring 5 is positioned between the two connecting handles 4, the upper end and the lower end of the outer shell 3 can be fixed through the connecting handle 4, the device is convenient to push or press the whole body during calibration, the device also comprises graduated scales 8, the graduated scales 8 are provided with two upper end and lower end side surfaces which are respectively fixed on the right half part of the outer shell 3, the graduated scales 8 are arranged corresponding to the left and the right of the indicating dial 9, the moving distance of the indicating dial 9 can be accurately and visually indicated through, the balancing weights 6 are arranged on the outer side surface of the second contact base 7 in a circular array mode, and the influence of the weight difference value of the first contact base 1 and the second contact base 7 on calibration is reduced through the balancing weights 6;

the center disk 14: the screw thread alternates in zero setting circle 5, and the upper and lower side of central disk 14 all is fixed with second spring 13, and the other end of two second springs 13 is fixed respectively in the one side that two lifting disks 12 are close to each other, drives central disk 14 through rotating zero setting circle 5 and reciprocates to this zero setting is carried out to this device self, avoids this device self to have the mistake and influences the calibration accuracy of mechanics instrument.

When in use: the device is horizontally and vertically placed, the first contact base 1 or the second contact base 7 is abutted against a wall or a workbench, then the first contact base 1 or the second contact base 7 is pressed, the first spring 11 and the second spring 13 deform and contract, the two lifting disks 12 correspondingly move, the lifting disks 12 drive the indicating disks 9 to move, the two indicating disks 9 indicate the scale values of the corresponding graduated scales 8 when placed in different directions are observed, if the two scale values are consistent in the horizontal direction and the two scale change values are consistent in the vertical direction, the device has good self accuracy, if the scale values are inconsistent in the horizontal direction or the two scale change values are inconsistent in the vertical direction, the device needs to be zeroed, then the zeroing rotary ring 5 is rotated, the zeroing rotary ring 5 drives the central disk 14 to move, the elastic forces of the upper first spring 11, the lower spring 11 and the second spring 13 are adjusted, the scale values of the graduated scales 8 indicated by the indicating disks 9 are observed again, until the device is accurately adjusted; when mechanical instruments such as a gravity scale and the like need to be measured, the first contact base 1 is pressed downwards on the scale, the two connecting handles 4 are pressed downwards by hands, whether the numerical value of the scale is consistent with the numerical value of the lower indicating dial 9 indicating scale 8 is observed, when the mechanical instruments such as a spring dynamometer and the like need to be measured, the hanging rod 10 is hung on a hook of the spring dynamometer, the two connecting handles 4 are pulled downwards, and whether the numerical value of the spring dynamometer is consistent with the numerical value of the upper indicating dial 9 indicating scale 8 is observed; calibration was performed as described above.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A measurement calibration device for a mechanical instrument, characterized in that: comprises an outer shell (3) and a central disc (14);

outer shell (3): the side surfaces of the upper and lower ends of the right half part are both provided with outer through holes, a zero setting rotary ring (5) is rotatably penetrated in the middle end of the outer shell (3), lifting rods (2) are movably inserted into the upper end and the lower end of the outer shell (3) up and down, a first contact base (1) is fixed at the upper end of the upper lifting rod (2), a second contact base (7) is fixed at the lower end of the lower lifting rod (2), a hanging rod (10) is fixed in the lower end of the second contact seat (7), one ends of the two lifting rods (2) close to each other are fixed with first springs (11), the other ends of the two first springs (11) are fixed with lifting discs (12), the two lifting discs (12) are respectively and movably inserted in the upper end and the lower end of the outer shell (3) up and down, an indicating disc (9) is fixed on the right half side face of the lifting disc (12), and the other end of the indicating disc (9) vertically movably penetrates through the outer through hole;

central disc (14): the screw thread alternates in zero setting circle (5), the upper and lower side of center plate (14) all is fixed with second spring (13), and the other end of two second springs (13) is fixed respectively in the one side that two lifting disks (12) are close to each other.

2. A metrological calibration device as claimed in claim 1, in which: and friction increasing grooves are arranged on the side surface of the zero setting rotary ring (5) in a circular array.

3. A metrological calibration device as claimed in claim 1, in which: the zero setting rotary ring is characterized by further comprising two connecting handles (4), the two connecting handles (4) are arranged on the outer side face of the middle end of the outer shell (3) in a circular array mode, and the zero setting rotary ring (5) is located between the two connecting handles (4).

4. A metrological calibration device as claimed in claim 1, in which: still including scale (8), scale (8) have two and fix respectively in the last lower extreme side of the right half of shell body (3), correspond the setting about scale (8) and dial (9).

5. A metrological calibration device as claimed in claim 1, in which: the contact device is characterized by further comprising balancing weights (6), wherein the balancing weights (6) are arranged on the outer side face of the second contact seat (7) in a circular array mode.