CN212458164U - Gear micrometer calibrating installation - Google Patents

Abstract

The utility model relates to a gear micrometer calibrating device technical field just discloses a gear micrometer calibrating device, and the gauge includes dabber and axle sleeve, the dabber includes the portion of cup jointing at the portion of inserting and the centre at both ends, the portion of inserting with cup jointing a coaxial coupling, cup joint a overcoat and have the axle sleeve, cup joint a portion and axle sleeve size looks adaptation, connect closely, with gear micrometer screw rod ball gauge head and survey anvil sleeve ball gauge head extract the back, insert the special gauge of axiality in two holes, observe whether have the clearance of feeling, the to-be-solved technical problem of the unable problem that detects of axiality of interchangeable ball gauge head mounting hole on the micrometer screw rod of current gear micrometer and the survey anvil sleeve.

Description

Gear micrometer calibrating installation

Technical Field

The utility model relates to a gear micrometer calibrating device technical field specifically is a gear micrometer calibrating device.

Background

The gear micrometer is a measuring instrument which converts the rotation angle of a micrometer screw into the axial displacement of the micrometer screw by using a screw pair structure and reads the distance separated between two measuring surfaces on a micrometer frame.

Along with the progress of society and the rapid development of industry, the requirements on the accuracy and the measurement precision of a gear micrometer measuring tool are higher and higher in production and use of enterprises, currently, the gear micrometer is divided into a scale type and an electronic digital display type, the country does not have corresponding national measurement and calibration rules and measurement and calibration standards to uniformly standardize a detection technology and a calibration method at present, the coaxiality item of a replaceable ball probe mounting hole on a micrometer screw rod and an anvil sleeve of the gear micrometer is often ignored and cannot be manufactured, so that the problem of indicating value error is frequently caused when the item of indicating value error is calibrated, and the coaxiality error of the two spherical replaceable probe mounting holes is just one of main reasons causing the indicating value error to be out of tolerance.

Therefore, the calibrating device for the gear micrometer is provided, and the problem that the coaxiality of the replaceable ball measuring head mounting hole on the micrometer screw and the measuring anvil sleeve of the existing gear micrometer cannot be detected is solved.

SUMMERY OF THE UTILITY MODEL

In view of the above problems existing in the prior art, an object of the present invention is to provide a calibrating apparatus for a gear micrometer.

In order to achieve the above object, the present invention provides a main technical solution including:

dabber and axle sleeve, the dabber includes the portion of cup jointing at the portion of inserting and the centre at both ends, and the portion of inserting and the portion coaxial coupling that cup joints, and the portion overcoat of cup jointing has the axle sleeve, and the portion of cup jointing is closely connected with axle sleeve size looks adaptation.

Preferably, the inserting portion and the sleeving portion are both cylinders, the inserting portion and the sleeving portion are integrally formed, and the radial sizes of the inserting portion and the sleeving portion are the same.

Preferably, the material of the mandrel is Gcr15 alloy tool steel, the diameter is phi 3.5mm and phi 5mm, the length of each diameter of the mandrel is 6, and the length of each diameter is 35 mm; 60 mm; 85 mm; 110 mm; 135 mm; 165 mm.

Preferably, the mandrel hardness is HRC 58-62.

Preferably, sharp corners of the outer profile of the two end surfaces of the mandrel are blunt C0.5mm.

Preferably, the coaxiality of the insertion parts at the two ends of the mandrel is 0.002 mm.

Preferably, the shaft sleeve is made of aluminum alloy, and the shaft sleeve is provided with reticulate patterns.

Preferably, the mandrel and the aluminum alloy shaft sleeve are manufactured in a combined mode, and the connection is compact.

Preferably, the diameter of the shaft sleeve is phi 6.0mm when the length of the mandrel is 35-85mm, and the diameter of the shaft sleeve is phi 8.0mm when the length of the mandrel is 110-165 mm.

Compared with the prior art, the utility model provides a pair of gear micrometer calibrating installation has following beneficial effect:

the utility model discloses a special gauge of axiality uses the both ends face as the benchmark, be used for detecting the axiality of the ball gauge head mounting hole that can trade that gear micrometer screw rod and test anvil sheathe in, and can guarantee two axialities, further improve the accuracy and the stability of axiality measurement, the axiality project that has also overcome gear micrometer screw rod and test anvil sheathe in can trade the ball gauge head mounting hole can't find corresponding check out test set's difficulty simultaneously, be provided with the reticulation on the axle sleeve, in order to prevent sliding, convenient operation.

Drawings

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

FIG. 2 is a schematic structural view of a scale type gear micrometer;

FIG. 3 is a structural diagram of an electronic digital display type gear micrometer;

fig. 4 is a diagram of a gauge structure.

In the figure: 1. a mandrel; 11. an insertion end; 12. a sleeving end; 2. a shaft sleeve; 3. a ruler frame; 4. a micrometer screw; 5. measuring an anvil sleeve; 6. a gauge; 7. the ball measuring head can be replaced.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described below clearly and completely with reference to the accompanying drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of the word "comprising" or "comprises", and the like, in this disclosure is intended to mean that the elements or items listed before that word, include the elements or items listed after that word, and their equivalents, without excluding other elements or items.

To maintain the following description of the embodiments of the present disclosure clear and concise, a detailed description of known functions and known components have been omitted from the present disclosure.

Referring to fig. 1-4, the utility model provides a gear micrometer calibrating device, a gauge 6 comprises a mandrel 1 and a sleeve 2, the mandrel 1 comprises an inserting part 11 at two ends and a sleeve part 12 in the middle, the inserting part 11 is coaxially connected with the sleeve part 12, the sleeve part 2 is sleeved outside the sleeve part 12, the sleeve part 12 is matched with the sleeve 2 in size and is tightly connected, the inserting part 11 and the sleeve part 12 are both cylinders, the inserting part 11 and the sleeve part 12 are integrally formed, the radial size of the inserting part 11 is the same as that of the sleeve part 12,

the gear micrometer detects the coaxiality of the mounting holes of the ball-replaceable measuring heads 7 on the micrometer screw rod 4 and the measuring anvil sleeve 5, firstly, the inserting parts 11 at two ends of the special core shaft 1 for the coaxiality are inserted into two holes after the micrometer screw rod 4 and the ball-replaceable measuring heads 7 on the measuring anvil sleeve 5 are inserted into the rack 3 of the gear micrometer, whether a gap on hand feeling exists is observed, so that the gap error of the coaxiality of the mounting holes of the ball-replaceable measuring heads 7 on the micrometer screw rod 4 and the measuring anvil sleeve 5 is judged, the coaxiality of the mounting holes of the micrometer screw rod 4 and the ball-replaceable measuring heads 7 on the measuring anvil sleeve 5 of the gear micrometer is detected, and no gap error of hand feeling exists.

The material of the mandrel 1 is Gcr15 alloy tool steel, the diameter is phi ruler frame 3.5mm and phi 5mm, the length of each diameter size of the mandrel 1 is 6, and the diameter size is 35 mm; 60 mm; 85 mm; 110 mm; 1, 35mm of ruler frame; 165mm, 6 specification of gauge are various, are applicable to the gear micrometer of different specifications.

The hardness of the mandrel 1 is HRC58-62, sharp corners of the outline of two end faces of the mandrel 1 are blunt C0.5mm, the coaxiality of the insertion parts 11 at two ends of the mandrel 1 is 0.002mm, the shaft sleeve 2 is made of aluminum alloy, the shaft sleeve 2 is provided with reticulates, the mandrel 1 and the aluminum alloy shaft sleeve 2 are manufactured in a combined mode and are connected compactly, when the length of the mandrel 1 is 35-85mm, the diameter of the shaft sleeve 2 is phi 6.0mm, and when the length of the mandrel 1 is 110 plus 165mm, the diameter of the shaft sleeve 2 is phi 8.0mm, the mandrel 1 and the shaft sleeve 2 of the gauge 6 are subjected to material treatment, surface treatment and size limitation, so that the gauge 6 is designed to be more reasonable.

The gear micrometer detects the coaxiality of the mounting holes of the micrometer screw rod 4 and the ball-replaceable measuring head 7 on the measuring anvil sleeve 5, firstly, the micrometer screw rod 4 inserted on the gear micrometer frame 3 and the ball-replaceable measuring head 7 on the measuring anvil sleeve 5 are pulled out, the insertion parts 11 at two ends of the special core shaft 1 for coaxiality are inserted into the two holes, whether a gap on hand feeling exists or not is observed to judge a gap error existing in the coaxiality of the mounting holes of the micrometer screw 4 and the ball-replaceable measuring head 7 on the anvil sleeve 5, the gap error is mainly used for detecting the coaxiality of the micrometer screw 4 and the ball-replaceable measuring head 7 on the anvil sleeve 5 of the gear micrometer, the gear micrometer is used as a base for installation and measurement, the application of the special coaxiality gauge 6 of the gear micrometer and the function of detecting the coaxiality of the mounting holes of the micrometer screw 4 and the ball-replaceable measuring head 7 on the anvil sleeve 5 of the gear micrometer are realized, and the gauge 6 is suitable for gear micrometers of a scale type and an electronic digital display type.

Those not described in detail in this specification are within the skill of the art.

The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.

In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

Claims (9)

1. The utility model provides a gear micrometer calibrating installation which characterized in that: the core shaft comprises an insertion part at two ends and a middle sleeve joint part, the insertion part is coaxially connected with the sleeve joint part, the sleeve joint part is sleeved with the shaft sleeve, and the sleeve joint part is matched with the shaft sleeve in size and is tightly connected with the shaft sleeve.

2. A gear micrometer calibrating device according to claim 1, characterized in that: the inserting portion and the sleeving portion are both cylinders, the inserting portion and the sleeving portion are integrally formed, and the radial sizes of the inserting portion and the sleeving portion are the same.

3. A gear micrometer calibrating device according to claim 1, characterized in that: the material of the mandrel is Gcr15 alloy tool steel, the diameter of the mandrel is phi 3.5mm and phi 5mm, and the length of each diameter of the mandrel is 6, and 35 mm; 60 mm; 85 mm; 110 mm; 135 mm; 165 mm.

4. A gear micrometer calibrating device according to any one of claims 1-3, wherein: the mandrel hardness is HRC 58-62.

5. A gear micrometer calibrating device according to any one of claims 1-3, wherein: and sharp corners of the outer contour of two end surfaces of the mandrel are chamfered by C0.5mm.

6. A gear micrometer calibrating device according to any one of claims 1-3, wherein: the coaxiality of the insertion parts at the two ends of the mandrel is 0.002 mm.

7. A gear micrometer calibrating device according to any one of claims 1-3, wherein: the shaft sleeve is made of aluminum alloy materials, and reticulate patterns are arranged on the shaft sleeve.

8. A gear micrometer calibrating device according to any one of claims 1-3, wherein: the mandrel and the aluminum alloy shaft sleeve are manufactured in a combined mode, and the connection is compact.

9. A gear micrometer calibrating device according to any one of claims 1-3, wherein: when the length of the mandrel is 35-85mm, the diameter of the shaft sleeve is phi 6.0mm, and when the length of the mandrel is 110-165mm, the diameter of the shaft sleeve is phi 8.0 mm.

Images