CN202153125U - Detection apparatus for tiny step surface - Google Patents

Detection apparatus for tiny step surface Download PDF

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Publication number
CN202153125U
CN202153125U CN2010206822242U CN201020682224U CN202153125U CN 202153125 U CN202153125 U CN 202153125U CN 2010206822242 U CN2010206822242 U CN 2010206822242U CN 201020682224 U CN201020682224 U CN 201020682224U CN 202153125 U CN202153125 U CN 202153125U
Authority
CN
China
Prior art keywords
probe
taper thread
vernier scale
base
gauge
Prior art date
Application number
CN2010206822242U
Other languages
Chinese (zh)
Inventor
童爱兰
商景岩
严梅
Original Assignee
江西昌河航空工业有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 江西昌河航空工业有限公司 filed Critical 江西昌河航空工业有限公司
Priority to CN2010206822242U priority Critical patent/CN202153125U/en
Application granted granted Critical
Publication of CN202153125U publication Critical patent/CN202153125U/en

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Abstract

The utility model belongs to the technical field of metering detection, and relates to a detection apparatus used for measuring the distance between tiny step surfaces between grooves, comprising a base, a vernier scale, a cross beam and a probe, wherein the vernier scale is arranged on the base, the cross beam is sleeved on the vernier scale, the probe is arranged at the tail end of the cross beam, the probe is directed to the direction of the base, the probe tip is needlelike, the diameter of the probe is less than the radial size of the cardinal plane of a taper thread check gage, the probe is strictly parallel to the vernier scale, and the probe and the veriner scale are both perpendicular to the cross beam. The detection apparatus for tiny step surface has a probe with small diameter and can accurately measure the cardinal plane spacing when the cardinal plane of a taper thread ring gage is higher than the cardinal plane of the taper thread check gage, with an error of indication being 0.2 mm, thereby avoiding the problem that the product is unable to be measured such that the product is discarded, being convenient in operation through a similar measure method with that of the height gage, and having a great practical application value.

Description

The pick-up unit of small step surface
Technical field
The utility model belongs to the Measuring and testing technology, relates to distance detection device between a kind of small step surface that is used to measure between groove.
Background technology
In the development and production process of helicopter, have few products to have the taper thread part, and this taper thread in order to control its quality, normally go to detect with the taper thread ring gauge with very inconvenience of Equipment Inspection.See also Fig. 1; When the taper thread ring gauge is examined and determine, be to adopt corresponding taper thread check gauge to control, the critical size that at this moment will control is the distance between taper thread ring gauge basal plane and the taper thread check gauge basal plane; This value should be within ± 0.10mm; But their basal plane is all very little, and especially the basal plane of check gauge is merely about 1mm, and general testing tool measuring head surface of contact more all can't be deep into this basal plane.
When taper thread ring gauge basal plane is lower than taper thread check gauge basal plane; Also available optics sciagraphy detects, but when taper thread ring gauge basal plane is higher than taper thread check gauge basal plane, then can't detect; Usually for the sake of security; This taper thread ring gauge all will be scrapped, and causes unnecessary waste, has increased production cost.
Summary of the invention
The purpose of the utility model is: propose the pick-up unit of high, the easy to operate small step surface of a kind of measuring accuracy, particularly can accurately measure the basal plane spacing of taper thread ring gauge basal plane when higher than taper thread check gauge basal plane.
The technical scheme of the utility model is: a kind of pick-up unit of small step surface, and it comprises base, vernier scale, crossbeam and a chaining pin, vernier scale is arranged on the base; Crossbeam is enclosed within on the vernier scale, and said chaining pin is arranged on beam-ends, and gauge head is towards the base direction; Surveying point is needle-like, and its diameter is less than taper thread check gauge basal plane radial dimension, wherein; Chaining pin is parallel with vernier scale, and the two equal and beam vertical.
This gauge head is a flat.
The gauge head diameter is not more than 1mm.
The utility model has the advantages that: the pick-up unit of the small step surface of the utility model is transformed the probe part of height gauge, is processed into flat needle-like type, because the chaining pin diameter is little; The depression measurement face that can be deep into small area is measured; Thereby realize the accurate measurement to the step surface spacing, particularly can accurately measure the basal plane spacing of taper thread ring gauge basal plane when higher than taper thread check gauge basal plane, its error of indication can reach 0.02mm; The product rejection that can avoid to measure and cause; And measuring method and height gauge are similar, are convenient to operation, have bigger actual application value.
Description of drawings
Fig. 1 is the test product synoptic diagram, and L is tested distance;
Fig. 2 is the structural representation of the pick-up unit of the small step surface of the utility model;
Fig. 3 is the pick-up unit instrumentation plan of the small step surface of the utility model,
Wherein, 1-base, 2-vernier scale, 3-crossbeam, 4-chaining pin, 6-taper thread check gauge basal plane, 7-taper thread ring gauge basal plane, 8-flat board.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is elaborated:
See also Fig. 2, it is the structural representation of the pick-up unit of the small step surface of the utility model.The pick-up unit of said small step surface is similar to a height gauge, comprises a base 1, vernier scale 2, crossbeam 3 and chaining pin 4.Wherein, vernier scale 2 is arranged on the base 1, and crossbeam is enclosed within on the vernier scale 2, can move up and down along vernier scale 2.Said chaining pin 4 is arranged on crossbeam 3 ends, and gauge head is towards base 1 direction, and this gauge head is flat, and surveying point is needle-like, and diameter is not more than 1mm, measures so that be deep into small measurement face.Wherein, chaining pin 4 is strict parallel with vernier scale 2, and the two equal and beam vertical.
See also Fig. 3, it is the pick-up unit instrumentation plan of the small step surface of the utility model.During actual measurement, the taper thread check gauge is placed in the taper thread ring gauge, and places on one dull and stereotyped 8, tightens then, makes the two fastening each other, avoids relatively moving.The pick-up unit of small step surface is placed on dull and stereotyped 8, makes chaining pin 4 survey point contact taper thread ring gauge basal plane 7, and read the data of vernier scale.Then, move the chaining pin 4 of small step surface pick-up unit, make it contact reading of data with taper thread check gauge basal plane 6.Compare the difference of the two, this difference is the basal plane spacing, also is the step surface spacing.
The pick-up unit of the small step surface of the utility model is transformed the probe part of height gauge, is processed into flat needle-like type, makes its depression that can be deep into small area measure face; Read the step surface spacing according to the height cursor principle; Realization is to the accurate measurement of step surface spacing, particularly because the chaining pin diameter is little, can accurately measure the basal plane spacing of taper thread ring gauge basal plane 7 when higher than taper thread check gauge basal plane 6; Its error of indication can reach 0.02mm; The product rejection of avoiding measuring and causing, and measuring method and height gauge are similar, are convenient to operation; No matter be in which kind of relative position between taper thread ring gauge basal plane and the taper thread check gauge basal plane and all can directly detect the actual value between the basal plane, have bigger actual application value.

Claims (3)

1. the pick-up unit of a small step surface, it is characterized in that: comprise a base (1), vernier scale (2), crossbeam (3) and chaining pin (4), vernier scale (2) is arranged on the base (1); Crossbeam is enclosed within on the vernier scale (2), and said chaining pin (4) is arranged on crossbeam (3) end, and gauge head is towards base (1) direction; Surveying point is needle-like, and its diameter is less than taper thread check gauge basal plane radial dimension, wherein; Chaining pin (4) is parallel with vernier scale (2), and the two equal and beam vertical.
2. the pick-up unit of small step surface according to claim 1, it is characterized in that: this gauge head is a flat.
3. the pick-up unit of small step surface according to claim 2, it is characterized in that: the gauge head diameter is not more than 1mm.
CN2010206822242U 2010-12-28 2010-12-28 Detection apparatus for tiny step surface CN202153125U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010206822242U CN202153125U (en) 2010-12-28 2010-12-28 Detection apparatus for tiny step surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010206822242U CN202153125U (en) 2010-12-28 2010-12-28 Detection apparatus for tiny step surface

Publications (1)

Publication Number Publication Date
CN202153125U true CN202153125U (en) 2012-02-29

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Family Applications (1)

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CN2010206822242U CN202153125U (en) 2010-12-28 2010-12-28 Detection apparatus for tiny step surface

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CN (1) CN202153125U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103115543A (en) * 2012-11-13 2013-05-22 无锡明珠增压器制造有限公司 Measuring counter block of pressure end face of turbine rotor
CN104019725A (en) * 2014-06-18 2014-09-03 昆山恒源机械制造有限公司 Caliper body planar distance test tool
CN109297452A (en) * 2018-11-16 2019-02-01 国家电网有限公司 A kind of device and its measurement method measuring large-scale hydraulic main shaft and bush gap distance
CN110307818A (en) * 2019-06-21 2019-10-08 江苏理工学院 A kind of ladder plan range and hole depth measuring device
CN110514162A (en) * 2019-08-09 2019-11-29 江苏理工学院 A kind of step depth measurement tools
CN110763180A (en) * 2019-11-06 2020-02-07 中国航发南方工业有限公司 Method for measuring dimension of small step surface of slender shaft of cantilever

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103115543A (en) * 2012-11-13 2013-05-22 无锡明珠增压器制造有限公司 Measuring counter block of pressure end face of turbine rotor
CN103115543B (en) * 2012-11-13 2016-08-10 无锡明珠增压器制造有限公司 The measurement of pressure end face of turbine rotor is to block
CN104019725A (en) * 2014-06-18 2014-09-03 昆山恒源机械制造有限公司 Caliper body planar distance test tool
CN109297452A (en) * 2018-11-16 2019-02-01 国家电网有限公司 A kind of device and its measurement method measuring large-scale hydraulic main shaft and bush gap distance
CN110307818A (en) * 2019-06-21 2019-10-08 江苏理工学院 A kind of ladder plan range and hole depth measuring device
CN110514162A (en) * 2019-08-09 2019-11-29 江苏理工学院 A kind of step depth measurement tools
CN110763180A (en) * 2019-11-06 2020-02-07 中国航发南方工业有限公司 Method for measuring dimension of small step surface of slender shaft of cantilever

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Granted publication date: 20120229