CN103727858A - External thread guide size measurement tool - Google Patents
External thread guide size measurement tool Download PDFInfo
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- CN103727858A CN103727858A CN201410008085.8A CN201410008085A CN103727858A CN 103727858 A CN103727858 A CN 103727858A CN 201410008085 A CN201410008085 A CN 201410008085A CN 103727858 A CN103727858 A CN 103727858A
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- external thread
- patchhole
- section
- dial gauge
- dimensional measurement
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Abstract
The invention relates to the technical field of measurement tools for external thread workpieces, in particular to an external thread guide size measurement tool which comprises a sleeve body, wherein a vertical through insertion hole is formed in the sleeve body, the upper end of the insertion hole is provided with an upper end port for allowing a measurement rod of a dial indicator to be inserted in, the lower end of the insertion hole is provided with a lower end port for allowing external thread guide sections of the external thread workpieces under measurement to be inserted in, the lower end port of the insertion hole is provided with a reference port edge which is in blocking match with the position of the smallest major diameter of each of the external thread workpieces under measurement, and a fixing part for fixing the dial indicator is arranged on the sleeve body. By means of the tool, the external thread guide size can be measured directly. Compared with the existing measurement method performed by a projector, measurement efficiency of the external thread guide size of the external thread workpieces is greatly increased.
Description
Technical field
The present invention relates to the measurement frock technical field of external thread workpiece, particularly a kind of external thread guiding dimensional measurement frock.
Background technology
As shown in Figure 1, about aviation firmware external thread guiding size A, in state aviation standard HB5829-83, provide and be defined as " from roll extrusion, screw into end end face 11 to the minimum large footpath of first crest of complete thread 12() distance ".The minimum large footpath of screw thread is B.Owing to cannot using vernier caliper, directly measure the large footpath of the minimum point on the helix of the large footpath of external thread.Thereby, in prior art, conventionally use projector to measure, when measuring, need first levelling, then slowly rotation is looked for and is got minimum large footpath point, and every rotation once just needs to measure a B value, until find minimum large footpath point, carry out again its distance of projection measurement, measure about every average 10 minutes used time.Hence one can see that, and above-mentioned projector metering system is measured as stock size, exist waste time and energy, poor operability and the inefficient shortcoming of measurement, it has had a strong impact on the process-cycle of part.
Summary of the invention
The object of the present invention is to provide a kind of external thread guiding dimensional measurement frock, to improve the measurement efficiency of the external thread guiding size of external whorl work piece.
To achieve these goals, the present invention adopts following technical scheme: external thread guiding dimensional measurement frock, comprise body, body is provided with the patchhole that runs through upper and lower, the upper end of patchhole has the upper port of inserting for the sounding rod for dial gauge, the lower end of patchhole has the lower port of inserting for the external thread boot segment for tested external thread workpiece, the lower port of patchhole has the benchmark opening's edge coordinating for the large path position block of the minimum with tested external thread workpiece, and body is provided with for the fixing fixture of dial gauge.
Measuring frock also comprises and the removable orienting sleeve being fixedly connected with of body, on orienting sleeve, offer and run through pilot hole upper and lower, that be communicated with the lower port of patchhole, pilot hole is total to center line with patchhole and has the internal point section coordinating for the screw rod guiding with tested external thread workpiece.
Body bottom has external thread section, and pilot hole is shoulder hole, and shoulder hole comprises macropore section and aperture section from top to bottom successively, offers the internal thread coordinating with the external thread section of body in macropore section, and internal point section consists of the aperture section of pilot hole.
The lower surface of body is the reference plane vertical with the center line of patchhole, and benchmark opening's edge is positioned on reference plane, and the step surface of shoulder hole coordinates with reference plane block.
Fixture consists of jackscrew set on described body.
Measure frock and also comprise dial gauge, when the lower end of the sounding rod of dial gauge flushes with benchmark opening's edge, dial gauge is in zero-bit.
Beneficial effect of the present invention: in use, the upper port by the sounding rod of dial gauge by patchhole inserts in the hole this frock, guarantees that the lower end of sounding rod flushes with benchmark opening's edge, and dial gauge is fixed on body; Then by the screw rod of tested external thread workpiece, the lower port by patchhole inserts in the hole, when the end of screw rod and the lower end in contact of sounding rod, the sounding rod that promotes dial gauge is moved up, until the large path position of the minimum of tested external thread workpiece is when moving to benchmark opening's edge place and coordinating with benchmark opening's edge block, stop inserting, the displacement of the lower end of the sounding rod of dial gauge is the external thread guiding size of tested external thread workpiece, measures efficiency high.Adopt this frock can directly measure fast external thread guiding size, compare with existing projector measuring method, can greatly improve the measurement efficiency of the external thread guiding size of external thread workpiece.
Further, due to pilot hole and the common center line of patchhole, in use, internal point section has guide effect to the screw rod of tested external thread workpiece, and internal point section can guarantee that the screw rod of tested external thread workpiece and patchhole are total to center line, have improved measuring accuracy.
Further, macropore section is threaded connection and realizes removable being fixedly connected with body, and this removable fixed connection structure processing is simple and easy to use.
Further, because the step surface of shoulder hole coordinates with reference plane block, when the end of the screw rod of tested external thread workpiece flushes with step surface, flushing of screw rod end and reference plane can be realized, measuring accuracy can be improved.
Further, while flushing with benchmark opening's edge due to the lower end of the sounding rod when dial gauge, dial gauge, in zero-bit, can directly be read measured value from dial gauge by measuring, and has improved detection efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of external thread workpiece;
Fig. 2 is the exploded view of the embodiment 1 of external thread guiding dimensional measurement frock of the present invention;
Fig. 3 is the structural representation of the body in Fig. 2;
Fig. 4 is the structural representation of the orienting sleeve in Fig. 2;
Fig. 5 is the zeroing constitutional diagram of the embodiment 1 of external thread guiding dimensional measurement frock of the present invention;
Fig. 6 is the use constitutional diagram of the embodiment 1 of external thread guiding dimensional measurement frock of the present invention.
Embodiment
The embodiment 1 of external thread of the present invention guiding size detection frock, as shown in Fig. 2-6: external thread guiding dimensional measurement frock comprise dial gauge 4, body 2 with the removable orienting sleeve being fixedly connected with 3 of body 2.Body 2 is provided with for the fixing fixture of dial gauge 4.Body 2 is provided with the patchhole 26 that runs through upper and lower, patchhole 26 upper ends have the upper port 21 of inserting for the sounding rod 41 for dial gauge 4, the lower end of patchhole 26 has the lower port 22 of inserting for the external thread boot segment for tested external thread workpiece 5, the lower port 22 of patchhole 26 has the benchmark opening's edge 23 coordinating for the large path position block of the minimum with tested external thread workpiece 5, the lower surface of body 2 is reference planes 24 vertical with the center line of patchhole 26, and benchmark opening's edge 23 is positioned on reference plane 24.On orienting sleeve 3, offer and run through pilot hole upper and lower, that be communicated with the lower port 22 of patchhole 26, pilot hole and patchhole 26 be center line line altogether, and pilot hole has the internal point section 31 coordinating for the screw rod guiding with tested external thread workpiece 5.In the present embodiment, body 2 bottoms have external thread section 25, the pilot hole of orienting sleeve 3 is shoulder hole, shoulder hole comprises macropore section 32 and aperture section from top to bottom successively, in macropore section 32, offer the internal thread coordinating with the external thread section 25 of body 2, orienting sleeve 3 is threaded connection and realizes removable being fixedly connected with body 2, and internal point section 31 consists of aperture section.The step surface 33 of shoulder hole coordinates with reference plane 24 blocks.In the present embodiment, on the side of body 2, offer the screw hole 27 being communicated with patchhole 26, screw hole 27 is positioned at the top of body 2, and the center line of screw hole 27 is vertical with the center line of patchhole 26, in screw hole 27, be fitted with the jackscrew 7 for fixed muffle 42, fixture consists of jackscrew 7.
Use principle and the process of the embodiment 1 of external thread guiding size detection frock of the present invention: this frock, when first use, need to return to zero.In zeroing process, first body 2 is positioned on platform 6, the reference plane 24 of body 2 and platform 6 laminatings, then the sounding rod of dial gauge 4 41 is inserted in patchhole 26 by the upper port 21 of body 2, make the lower end 43 and platform 6 laminatings of the sounding rod 41 of dial gauge 4, thereby the lower end 43 of sounding rod is flushed with reference plane 24; Then jackscrew 7 is screwed in screw hole 27, makes the head of jackscrew 7 hold out against the sleeve 42 of dial gauge 4, thereby dial gauge 4 is fixed on body 2, the zeroing dish 44 that then rotates dial gauge 4 is placed in zero-bit by dial gauge 4.Then the external thread section of body 2 25 is screwed in the macropore section 32 of orienting sleeve 3, until the step surface 33 of orienting sleeve 3 coordinates with reference plane 24 blocks, completes being fixedly connected with of orienting sleeve 3 and body 2.Then carry out measuring process, in measuring process, the screw rod of tested external thread workpiece 5 is inserted in internal point section 31 from the bottom up, 31 pairs of screw rods of internal point section have guide effect, when the lower end 43 of the screw terminal end face 51 of screw rod and the sounding rod 41 of dial gauge 4 contacts, the sounding rod 41 that promotes dial gauge 4 is moved up, until the large path position of the minimum of tested external thread workpiece 5 is when moving to benchmark opening's edge 23 places and coordinating with benchmark opening's edge 23 blocks, stop inserting, the displacement of the lower end 43 of the sounding rod 41 of dial gauge 4 is the external thread guiding size of tested external thread workpiece 5, measurement efficiency is high.Adopt this frock to go out external thread guiding size by one-shot measurement, compare with existing projector measuring method, can greatly improve the measurement efficiency of the external thread guiding size of external thread workpiece, can greatly improve measuring accuracy simultaneously.
In other embodiments of the invention, can also save orienting sleeve.
In other embodiments of the invention, can also save dial gauge.
In other embodiments of the invention, can also save the external thread section of body bottom and the macropore section on orienting sleeve top, body can also be fixedly connected with by bolt is removable with orienting sleeve, on orienting sleeve, offer the first bolt hole that runs through upper and lower, on the lower surface of body, offer second bolt hole corresponding with the first bolt hole.
In an embodiment of the present invention, the upper fixing element of body can also be annular clamping element, and this clamping element is fixedly arranged on the upper surface of body, and this clamping element is surrounded by two clamp arms, two clamp arms are fixedly connected with by bolt is removable, and clamping element has the effect that fixes to clamp dial gauge.
In other embodiments of the invention, on the lower surface of body, can also offer groove, the bottom land of groove is communicated with the lower port of patchhole, and benchmark opening's edge is positioned on the bottom land of groove.This measures frock when zeroing, can use one flat plate to put into groove, flat board is flushed with bottom land, then by the sounding rod of dial gauge, the upper port by body inserts in the hole, make the lower end and dull and stereotyped laminating of sounding rod, thereby the lower end of sounding rod is flushed with benchmark opening's edge.
Claims (6)
1. external thread guides dimensional measurement frock, it is characterized in that: comprise body, body is provided with the patchhole that runs through upper and lower, the upper end of patchhole has the upper port of inserting for the sounding rod for dial gauge, the lower end of patchhole has the lower port of inserting for the external thread boot segment for tested external thread workpiece, the lower port of patchhole has the benchmark opening's edge coordinating for the large path position block of the minimum with tested external thread workpiece, and body is provided with for the fixing fixture of dial gauge.
2. external thread according to claim 1 guides dimensional measurement frock, it is characterized in that: also comprise and the removable orienting sleeve being fixedly connected with of body, on orienting sleeve, offer and run through pilot hole upper and lower, that be communicated with the lower port of patchhole, pilot hole is total to center line with patchhole and has the internal point section coordinating for the screw rod guiding with tested external thread workpiece.
3. external thread according to claim 2 guides dimensional measurement frock, it is characterized in that: body bottom has external thread section, pilot hole is shoulder hole, shoulder hole comprises macropore section and aperture section from top to bottom successively, in macropore section, offer the internal thread coordinating with the external thread section of body, internal point section consists of the aperture section of pilot hole.
4. external thread guiding dimensional measurement frock according to claim 3, is characterized in that: the lower surface of body is the reference plane vertical with the center line of patchhole, and benchmark opening's edge is positioned on reference plane, and the step surface of shoulder hole coordinates with reference plane block.
5. external thread guiding dimensional measurement frock according to claim 1, is characterized in that: fixture consists of jackscrew set on described body.
6. external thread according to claim 1 guiding dimensional measurement frock, is characterized in that: also comprise dial gauge, when the lower end of the sounding rod of dial gauge flushes with benchmark opening's edge, dial gauge is in zero-bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410008085.8A CN103727858B (en) | 2014-01-08 | 2014-01-08 | External thread guide size measurement tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410008085.8A CN103727858B (en) | 2014-01-08 | 2014-01-08 | External thread guide size measurement tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103727858A true CN103727858A (en) | 2014-04-16 |
| CN103727858B CN103727858B (en) | 2017-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410008085.8A Active CN103727858B (en) | 2014-01-08 | 2014-01-08 | External thread guide size measurement tool |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090082745A (en) * | 2008-01-28 | 2009-07-31 | 태양기계(주) | Measuring devicd and method of carrier for car differential |
| CN202582432U (en) * | 2012-05-17 | 2012-12-05 | 河南航天精工制造有限公司 | Length measuring device for guide threads of workpiece with external threads |
| CN103115544A (en) * | 2013-02-20 | 2013-05-22 | 河南航天精工制造有限公司 | Measuring tool for effective length and ending length of external thread |
| CN103175457A (en) * | 2013-03-15 | 2013-06-26 | 河南航天精工制造有限公司 | Quick measuring tool for effective lengths of internal threads |
| CN203744872U (en) * | 2014-01-08 | 2014-07-30 | 河南航天精工制造有限公司 | External thread guide size measuring tool |
-
2014
- 2014-01-08 CN CN201410008085.8A patent/CN103727858B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090082745A (en) * | 2008-01-28 | 2009-07-31 | 태양기계(주) | Measuring devicd and method of carrier for car differential |
| CN202582432U (en) * | 2012-05-17 | 2012-12-05 | 河南航天精工制造有限公司 | Length measuring device for guide threads of workpiece with external threads |
| CN103115544A (en) * | 2013-02-20 | 2013-05-22 | 河南航天精工制造有限公司 | Measuring tool for effective length and ending length of external thread |
| CN103175457A (en) * | 2013-03-15 | 2013-06-26 | 河南航天精工制造有限公司 | Quick measuring tool for effective lengths of internal threads |
| CN203744872U (en) * | 2014-01-08 | 2014-07-30 | 河南航天精工制造有限公司 | External thread guide size measuring tool |
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| Publication number | Publication date |
|---|---|
| CN103727858B (en) | 2017-02-08 |
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