CN113251899A - Special measuring tool for diameter size of large-diameter shallow spigot - Google Patents
Special measuring tool for diameter size of large-diameter shallow spigot Download PDFInfo
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- CN113251899A CN113251899A CN202110578062.0A CN202110578062A CN113251899A CN 113251899 A CN113251899 A CN 113251899A CN 202110578062 A CN202110578062 A CN 202110578062A CN 113251899 A CN113251899 A CN 113251899A
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- diameter
- arm
- spigot
- rocker arm
- elastic element
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- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 13
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000003754 machining Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
- G01B5/12—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters internal diameters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The invention provides a special measuring tool for measuring the diameter size of a large-diameter shallow spigot, which relates to the technical field of machining and solves the technical problem that the existing measuring tool for measuring the diameter of the large-diameter shallow spigot in the prior art is inconvenient to use and operate; the dial indicator is arranged on the gauge body, and the measuring end of the dial indicator is abutted to the rocker arm; the rocker arm can be pressed to drive the moving contact to rotate, and the elastic element is compressed and deformed; the invention can realize the on-line detection of the size of the large-diameter shallow spigot, has high measurement accuracy and stable measurement precision, has lower requirement on the skill level of an operator, and is convenient and fast to measure and operate.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a special measuring tool for the diameter size of a large-diameter shallow spigot.
Background
The mechanical parts are often designed with seam allowance structures, and the seam allowance structures play roles in positioning, sealing and the like in part assembly. The spigot structure consists of an inner spigot and an outer spigot, and the diameter size precision of the spigot structure is high no matter the inner spigot or the outer spigot, so that higher requirements are provided for diameter size measurement.
When the measuring tool is used for a spigot with a large depth, standard measuring tools such as an outside micrometer, an inside dial gauge and the like can be selected for measurement, but when the measuring tool is used for a shallow spigot with a depth of less than 15mm, the measuring tool interferes with parts, so that the measuring tool cannot be used for measurement. Of course, the shallow inner seam allowance with the inner diameter not exceeding 150mm and the shallow outer seam allowance with the outer diameter not exceeding 200mm can be measured by an inner micrometer or a common line micrometer, but the measuring tool cannot be used for measuring the large-diameter shallow inner seam allowance with the inner diameter exceeding 150mm and the large-diameter shallow outer seam allowance with the outer diameter exceeding 200 mm.
Disclosure of Invention
The invention aims to provide a special measuring tool for the diameter size of a large-diameter shallow spigot, which solves the technical problem that the existing measuring tool is inconvenient to measure the diameter of the large-diameter shallow spigot in the prior art; the invention provides a plurality of technical effects (the amount is U-shaped, and is suitable for measuring the diameters of an outer spigot and an inner spigot, the rocker arm comprises a head part, a tail part and an abutting part, the head part is used for rotatably mounting the waist, the tail part is used for being pressed by a hand when in use, the abutting part is used for abutting against an elastic element, the rocker arm is mounted on a second longitudinal arm through a slotted cone end fastening screw and can rotate, the slotted end of the slotted cone end fastening screw is provided with a knurled nut which can adjust the rotating sensitivity of the rocker arm, the end parts of the first longitudinal arm and the second longitudinal arm are provided with arc surfaces which can be contacted with the bottom surface when the diameter of the spigot is measured, the operation is convenient, the measuring stability and the measuring precision can be improved, the second longitudinal arm is provided with a second threaded hole, the first slotted flat end fastening screw is arranged in the second threaded hole, on the one hand, the elastic element is used for mounting, on the other hand, the measuring tool can be adjusted to measure the force; the second longitudinal arm is provided with a mounting hole, and the mounting hole is provided with an opening bush for mounting the dial indicator; the second longitudinal arm is provided with a fastening hole, the fastening hole is provided with a second slotted flat end fastening screw, and the dial indicator is firmly installed; the fixed contact and the moving contact are arranged in a back-to-back manner and are used for measuring the diameter of the inner spigot; the fixed contact and the movable contact are arranged oppositely and are used for measuring the diameter of the outer spigot and the like); see below for details.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a special measuring tool for the diameter size of a large-diameter shallow spigot, which comprises a measuring body and a dial indicator, wherein: a fixed contact is arranged on one side of the gauge body, a rocker arm is rotatably arranged on the other side of the gauge body, a moving contact is arranged on the rocker arm, the moving contact corresponds to the fixed contact in position, an elastic element is arranged on the gauge body, and the rocker arm abuts against the elastic element; the dial indicator is arranged on the gauge body, and the measuring end of the dial indicator is abutted to the rocker arm; the rocker arm can be pressed to drive the moving contact to rotate, and the elastic element is compressed and deformed.
Preferably, the measuring device is provided in a U-shape, the measuring device comprising a first trailing arm, a second trailing arm and a transverse arm, wherein: the fixed contact is arranged on the first trailing arm; the rocker arm is rotatably arranged on the second trailing arm.
Preferably, the rocker arm comprises a head, a tail and an abutment, wherein: the head part is rotatably arranged on the second longitudinal arm; the elastic element is abutted against the abutting part; pressing the tail part can drive the rocker arm to rotate so that the abutting part abuts against the elastic element.
Preferably, the end of the second trailing arm is provided with a slot, the slot wall of the slot is provided with two first threaded holes oppositely, the head is provided with two conical holes oppositely, and the conical end of the slotted conical end set screw passes through the corresponding first threaded hole and is inserted into the corresponding conical hole; and the groove end of the grooving conical end fastening screw is connected with a knurled nut.
Preferably, the end portions of the first trailing arm and the second trailing arm are provided with arc surfaces.
Preferably, a second threaded hole is formed in the second trailing arm, and a first slotted flat-end set screw is arranged in the second threaded hole; one end of the elastic element is inserted into the second threaded hole and connected with the first slotted flat end set screw, and the other end of the elastic element abuts against the rocker arm.
Preferably, the second trailing arm is provided with a mounting hole in a penetrating manner, an opening bushing is arranged in the mounting hole, the dial indicator is arranged on the opening bushing, and a measuring end of the dial indicator abuts against the tail.
Preferably, the second trailing arm is vertically communicated with the mounting hole and is provided with a fastening hole, and the end part of the second slotted flat-end fastening screw penetrates through the fastening hole and abuts against the opening bushing.
Preferably, the fixed contact and the movable contact are arranged oppositely.
Preferably, the fixed contact and the movable contact are oppositely arranged.
The special measuring tool for the diameter size of the large-diameter shallow spigot provided by the invention at least has the following beneficial effects:
the special measuring tool for the diameter size of the large-diameter shallow spigot comprises a measuring body and a dial indicator, wherein a fixed contact is arranged on one side of the measuring body, a rocker arm is arranged on the other side of the measuring body, a moving contact is arranged on the rocker arm, the fixed contact corresponds to the moving contact in position, the moving contact can be driven to rotate by the rocker arm which is rotatably arranged, the measuring body can be conveniently inserted into the spigot to be measured, and during measurement, the fixed contact and the moving contact are abutted to the wall of the spigot to be measured and used for diameter measurement.
The measuring tool is provided with an elastic element, the rocker arm abuts against the elastic element, when the diameter of the spigot is measured, on one hand, the deformed elastic element can push the rocker arm to return, so that the movable contact can automatically abut against the spigot wall, the operation is convenient and fast, on the other hand, after the rocker arm is released, the fixed contact and the movable contact are always abutted, the measuring force is stable, and the measurement is accurate.
The dial indicator is arranged on the measuring body, the measuring end of the dial indicator is abutted to the rocker arm, and when the moving contact is stable, the diameter of the spigot to be measured can be read through the dial indicator.
The rocker arm can be pressed to drive the moving contact to rotate, the elastic element is compressed and deformed, in the process of actual operation, the measurement of the diameter of the spigot can be completed only through pressing and inserting actions, and the operation is very convenient and fast.
The invention can realize the on-line detection of the size of the large-diameter shallow spigot, has high measurement accuracy and stable measurement precision, is convenient and fast to measure and operate, and has lower requirement on the skill level of an operator.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIGS. 1 and 2 are schematic structural views of embodiment 1 of the present invention;
fig. 3 is a schematic structural diagram of embodiment 2 of the present invention.
Reference numerals
1. Measuring specifically; 2. a dial indicator; 21. grooving; 22. a conical bore; 23. a first threaded hole; 24. a second threaded hole; 25. mounting holes; 26. a fastening hole; 3. fixing a contact; 4. a rocker arm; 5. a moving contact; 6. an elastic element; 7. a slotted cone end fastening screw; 8. knurling the nut; 9. a first slotted flat end set screw; 10. an open bushing; 11. the flat end of the second slot is used for fastening the screw.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Example 1:
the invention provides a special measuring tool for the diameter size of a large-diameter shallow spigot, which comprises a measuring body 1 and a dial indicator 2, as shown in figures 1 and 2.
One side threaded connection of the volume body 1 is provided with a fixed contact 3, the other side of the volume body 1 is rotatably provided with a rocker arm 4, the rocker arm 4 is provided with a moving contact 5 in a threaded connection mode, the moving contact 5 corresponds to the fixed contact 3 in position, the volume body 1 is provided with an elastic element 6, the elastic element 6 is arranged as a spring, and the rocker arm 4 is abutted to the elastic element 6.
The dial indicator 2 is arranged on the gauge body 1, and the measuring end of the dial indicator 2 is abutted to the rocker arm 4.
The pressing rocker arm 4 can drive the movable contact 5 to rotate and cause the elastic element 6 to generate compression deformation.
As an alternative embodiment, as shown in fig. 1, the gauge body 1 is provided as a U-shaped member, and the U-shaped member is a structural member having a rectangular cross section.
The measuring tool body 1 comprises a first longitudinal arm, a second longitudinal arm and a transverse arm, wherein the transverse arm is horizontally arranged, and the first longitudinal arm and the second longitudinal arm are vertically arranged at two ends of the transverse arm.
The fixed contact 3 is arranged on the first longitudinal arm, and the rocker arm 4 is rotatably arranged on the second longitudinal arm.
As an alternative embodiment, as shown in fig. 1, the rocker arm 4 is provided as a Z-shaped structure comprising a head portion, a tail portion and an abutment portion located between the head portion and the tail portion.
The head part is rotatably arranged on the second longitudinal arm; the elastic element 6 abuts against the abutting part; pressing the tail can drive the rocker arm 4 to rotate, so that the abutting portion abuts against the elastic element 6.
In an alternative embodiment, as shown in fig. 2, the end of the second trailing arm is provided with a slot 21, and the slot 21 is a right-angle slot.
The head part is concentrically and oppositely provided with two conical holes 22, and the end parts of the two conical holes 22 are communicated through a through hole; preferably, the taper angle of the conical bore 22 is set to 90 °.
The slot wall of fluting 21 is provided with two first screw holes 23 relatively, and two first screw holes 23 correspond with two circular cone holes 22 positions, and the awl end of fluting awl end holding screw 7 passes through corresponding first screw hole 23 and inserts to corresponding circular cone hole 22 in, adjusts the sensitivity of turning of the adjustable rocking arm 4 of fluting awl end holding screw 7.
The groove end of the grooving conical end holding screw 7 is connected with a knurled nut 8 for locking the grooving conical end holding screw 7.
Preferably, the taper angle of the slotted taper end set screw 7 is set to 90 °.
As an alternative embodiment, as shown in fig. 1, the end portions of the first trailing arm and the second trailing arm are each provided with a circular arc surface.
As an alternative embodiment, as shown in fig. 1, a second threaded hole 24 is penetratingly formed in the second trailing arm, and a first slotted flat-end set screw 9 is disposed in the second threaded hole 24; one end of the elastic element 6 is inserted into the second threaded hole 24 and connected with the first slotted flat-end set screw 9, and the other end of the elastic element 6 is abutted against the abutting part.
As an optional implementation manner, as shown in fig. 1, a mounting hole 25 is provided through the second trailing arm, an opening bushing 10 is provided in the mounting hole 25, the dial indicator 2 is mounted in the opening bushing 10, and a measuring end of the dial indicator 2 abuts against the tail.
As an alternative embodiment, as shown in fig. 2, a fastening hole 26 is vertically communicated with the mounting hole 25 on the second trailing arm, and the end of the second slotted flat-end set screw 11 passes through the fastening hole 26 to abut against the split bush 10, so that the dial indicator 2 is firmly mounted and is convenient to mount and dismount.
As an alternative embodiment, as shown in fig. 1, the fixed contact 3 and the movable contact 5 are disposed opposite to each other; the rocker arm 4 is positioned at the inner side of the measuring body 1, and the head of the dial indicator 2 is positioned at the outer side of the measuring body 1.
Example 1 is mainly applicable to the measurement of the female end diameter.
The use process comprises the following steps:
before measuring the diameter of the inner spigot, the special measuring tool for the diameter of the large-diameter shallow spigot is used for calibrating the dial indicator 2 on a sample piece with a standard size, and the pointer of the dial indicator 2 is reset.
During the tang diameter in measuring, earlier with decide contact 3 and support the one side of the tang in awaiting measuring, the afterbody of rocking arm 4 is pressed to the hand, this moment, elastic element 6 compression, rocking arm 4 drives the concrete 1 inboard direction of moving contact 5 vector and rotates, promote the concrete 1 of volume this moment, the arc surface that makes the concrete 1 first longitudinal arm of volume and second longitudinal arm tip contacts with the bottom surface of the tang in awaiting measuring, slowly relax the hand, rocking arm 4 counter-rotation under elastic element 6's effect, the another side of the tang in 5 butts await measuring of moving contact, rock the concrete 1 of volume gently, observe the percentage table reading, can obtain the diameter size of the tang in awaiting measuring.
Example 2:
example 2 differs from example 1 in that:
as shown in fig. 3, the fixed contact 3 and the movable contact 5 are disposed opposite to each other.
The rocker arm 4 is positioned outside the gauge body 1, and the head of the dial indicator 2 is positioned inside the gauge body 1.
Example 2 is mainly applicable to the measurement of the male end diameter.
The use process comprises the following steps:
before measuring the diameter of the outer spigot, the special measuring tool for the diameter of the large-diameter shallow spigot is used for calibrating the dial indicator 2 on a sample piece with a standard size, and the pointer of the dial indicator 2 is reset.
When measuring outer tang diameter, earlier with decide contact 3 and support the one side of outer tang that awaits measuring, the afterbody of rocking arm 4 is pressed to the hand, this moment, elastic element 6 compression, rocking arm 4 drives the concrete 1 outside direction of moving contact 5 vector and rotates, promote the concrete 1 of volume this moment, the arc surface that makes the concrete 1 first longitudinal arm of volume and second longitudinal arm tip contacts with the bottom surface of the outer tang that awaits measuring, slowly relax the hand, rocking arm 4 counter-rotation under elastic element 6's effect, the another side of the outer tang that awaits measuring of moving contact 5 butt, it is concrete 1 to rock the volume gently, observe the percentage table reading, can obtain the diameter size of the outer tang that awaits measuring.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. The special measuring tool for the diameter size of the large-diameter shallow spigot is characterized by comprising a measuring body and a dial indicator, wherein:
a fixed contact is arranged on one side of the gauge body, a rocker arm is rotatably arranged on the other side of the gauge body, a moving contact is arranged on the rocker arm, the moving contact corresponds to the fixed contact in position, an elastic element is arranged on the gauge body, and the rocker arm abuts against the elastic element;
the dial indicator is arranged on the gauge body, and the measuring end of the dial indicator is abutted to the rocker arm;
the rocker arm can be pressed to drive the moving contact to rotate, and the elastic element is compressed and deformed.
2. The special gauge for the diameter size of the large-diameter shallow spigot of claim 1, wherein said gauge is provided in a U-shape, said gauge comprising a first trailing arm, a second trailing arm and a cross arm, wherein:
the fixed contact is arranged on the first trailing arm;
the rocker arm is rotatably arranged on the second trailing arm.
3. The large diameter shallow spigot diameter dimension special gauge of claim 2 wherein said rocker arm comprises a head portion, a tail portion and an abutment portion, wherein:
the head part is rotatably arranged on the second longitudinal arm;
the elastic element is abutted against the abutting part;
pressing the tail part can drive the rocker arm to rotate so that the abutting part abuts against the elastic element.
4. The special measuring tool for the diameter size of the large-diameter shallow spigot as claimed in claim 3, wherein the end of the second longitudinal arm is provided with a slot, the slot wall of the slot is provided with two first threaded holes oppositely, the head is provided with two conical holes oppositely, and the conical end of a slotted conical end fastening screw passes through the corresponding first threaded hole and is inserted into the corresponding conical hole;
and the groove end of the grooving conical end fastening screw is connected with a knurled nut.
5. The special gauge for the diameter size of the large-diameter shallow spigot according to claim 2, wherein the end portions of said first trailing arm and said second trailing arm are each provided with a circular arc surface.
6. The special measuring tool for the diameter size of the large-diameter shallow spigot of claim 3, wherein a second threaded hole is formed in the second trailing arm, and a first slotted flat-end set screw is arranged in the second threaded hole;
one end of the elastic element is inserted into the second threaded hole and is connected with the first slotted flat end set screw, and the other end of the elastic element is abutted against the abutting part.
7. The special measuring tool for the diameter of the large-diameter shallow spigot according to claim 3, wherein a mounting hole is formed in the second trailing arm in a penetrating manner, an opening bushing is arranged in the mounting hole, the dial indicator is arranged on the opening bushing, and a measuring end of the dial indicator abuts against the tail portion.
8. The special measuring tool for the diameter size of the large-diameter shallow spigot according to claim 7, wherein a fastening hole is arranged on the second trailing arm and vertically communicated with the mounting hole, and the end part of the second slotted flat-end fastening screw penetrates through the fastening hole to abut against the split bushing.
9. The special measuring tool for the diameter size of the large-diameter shallow spigot of claim 1, wherein the fixed contact and the movable contact are arranged oppositely.
10. The special measuring tool for the diameter size of the large-diameter shallow spigot of claim 1, wherein the fixed contact and the movable contact are oppositely arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110578062.0A CN113251899B (en) | 2021-05-26 | 2021-05-26 | Special measuring tool for diameter size of large-diameter shallow spigot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110578062.0A CN113251899B (en) | 2021-05-26 | 2021-05-26 | Special measuring tool for diameter size of large-diameter shallow spigot |
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| CN113251899A true CN113251899A (en) | 2021-08-13 |
| CN113251899B CN113251899B (en) | 2023-12-01 |
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| CN109470114A (en) * | 2018-12-10 | 2019-03-15 | 陕西航空电气有限责任公司 | A kind of bearing chamber end face and seam allowance face size determine tool and method |
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