CN104422376A - Device for measuring blind hole depths - Google Patents
Device for measuring blind hole depths Download PDFInfo
- Publication number
- CN104422376A CN104422376A CN201310377552.XA CN201310377552A CN104422376A CN 104422376 A CN104422376 A CN 104422376A CN 201310377552 A CN201310377552 A CN 201310377552A CN 104422376 A CN104422376 A CN 104422376A
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- China
- Prior art keywords
- hole
- lining
- footpath
- diameter hole
- conehead
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Abstract
The invention relates to a device for measuring blind hole depths. Stepped holes are formed in a bearing along the shaft of the bearing. The stepped hole comprises a first big diameter hole, a second big diameter hole, and a small diameter hole between the first big diameter hole and the second big diameter hole. An end of a bush is inserted in the first big diameter hole, and an end of a dial gauge stretches to the first big diameter hole after being inserted into the bush, a through hole is arranged on the conical head bush, an end of the conical head bush is inserted into the second big diameter hole, an end of a measurement rod is connected with an end, which is located in the first big diameter hole, of the dial gauge, the other end of the measurement rod stretches into the through hole of the conical head bush after going through the small diameter hole, a convex bench is disposed on a rod body, which is in the through hole of the conical head bush, of the measurement rod, a spring is sleeved on the measurement rod, an end of the spring is limited through the convex bench on the measurement rod, the other end of the spring is limited by a step surface between the second big diameter hole and the small diameter hole, and an end of a contact stretches into the conical head bush and is connected with an end part of the measurement rod. With the device provided by the invention, blind hole depths can be measured quickly and accurately.
Description
Technical field
The present invention relates to a kind of blind hole depth measurement mechanism.
Background technology
Often riveted structure can be used in industrial every field; therefore rivet hole that is some and rivets can be offered on product; these rivet holes comprise the blind hole of a tool inverted cone surface; wherein this blind hole matches with the conical surface of rivet head incompatiblely to provide suitable contact area, thus meet riveting intensity requirement.Because the angle of the blind hole conical surface is consistent with rivet head frustoconical bevel angle, for obtaining good riveted joint effect, strictly need control blind hole depth, so adding the degree of depth needing man-hour accurately to measure blind hole.
Industry normally adopts Transmission light or reflective-mode to measure blind hole depth, it is by measuring the position occurring light intensity maximal value and light intensity minimum value in zeroth order diffraction spectrum that determined by the hole degree of depth, then determines the degree of depth in reached hole according to the control value of corresponding benchmark architecture and illumination wavelength scope.But this method is only applicable to the degree of depth measuring straight hole.Due to the singularity of blind hole shape, its degree of depth directly cannot be recorded by classic method, therefore cannot accurately control its degree of depth during processing blind hole, thus causes riveted structure yield lower, so blind hole depth measures the difficult problem having become a long-standing problem industry.
Summary of the invention
For above-mentioned technical matters, fundamental purpose of the present invention is for providing one can fast and Measurement accuracy blind hole depth measurement mechanism.
Blind hole depth measurement mechanism, comprise supporting, lining, clock gauge, gauge rod, conehead lining, spring and contact, supporting is provided with the stepped hole along its axle, stepped hole is by hole, first footpath, hole, second largest footpath and the composition of the diameter holes between hole, first footpath and hole, second largest footpath, one end of described lining is inserted in described hole, first footpath, one end of described clock gauge is inserted into after in lining and extends in hole, first footpath, described conehead lining is provided with through hole, one end of conehead lining is inserted in hole, second largest footpath, one end of described gauge rod is connected with the end being arranged in hole, first footpath of clock gauge, the other end of gauge rod extend in the through hole of conehead lining through after diameter holes, the shaft that gauge rod is arranged in conehead lining through hole is provided with boss, described spring housing is on gauge rod, one end of spring is spacing by the boss on gauge rod, the other end of spring is spacing by the step surface between hole, second largest footpath and diameter holes, one end of described contact is connected with the end of gauge rod with extending in conehead lining.
Have employed such scheme, during measurement, by the free end of contact by the upper surface being pressed in measured workpiece blind hole, gauge rod under spring force, make the contact of gauge rod withstand on the bottom of blind hole, the reading of the now pointer display of clock gauge, is the deviation of blind hole depth size.
The outside wall surface of described supporting is provided with pressing plate, and this pressing plate ringwise.By pressing plate, be convenient to carry out handle control to measurement mechanism.
Accompanying drawing explanation
Fig. 1 is blind hole depth measurement mechanism structural representation of the present invention;
1 is supporting, and 1a is hole, first footpath, and 2 is lining, and 3 is clock gauge, and 4 is gauge rod, and 4a is boss, and 5 is conehead lining, and 6 is spring, and 7 is contact, and 8 is pressing plate.
Embodiment
With reference to Fig. 1, a kind of blind hole depth measurement mechanism of the present invention, comprises supporting 1, lining 2, clock gauge 3, gauge rod 4, conehead lining 5, spring 6 and contact 7.Supporting 1 is provided with the stepped hole along its axle, stepped hole is made up of first footpath hole 1a, hole, second largest footpath and the diameter holes between hole, first footpath and hole, second largest footpath. and one end of described lining 2 is inserted in described first footpath hole 1a, and one end of described clock gauge 3 is inserted into after in lining 2 and extends in the hole 1a of first footpath.Described conehead lining 5 is provided with through hole, and one end of conehead lining 5 is inserted in hole, second largest footpath.One end of described gauge rod 4 is connected with the end being arranged in hole, first footpath of clock gauge 3, and the other end of gauge rod 3 extend in the through hole of conehead lining 5 through after diameter holes, and the shaft that gauge rod 4 is arranged in conehead lining through hole is provided with boss 4a.Described spring 6 is enclosed within gauge rod 4, and one end of spring 6 is spacing by the boss 4a on gauge rod 4, and the other end of spring 6 is spacing by the step surface between hole, second largest footpath and diameter holes.One end of described contact 7 is connected with the end of gauge rod with extending in conehead lining.The outside wall surface of described supporting 1 is provided with pressing plate 8, and this pressing plate 8 ringwise.
Claims (2)
1. blind hole depth measurement mechanism, it is characterized in that: comprise supporting, lining, clock gauge, gauge rod, conehead lining, spring and contact, supporting is provided with the stepped hole along its axle, stepped hole is by hole, first footpath, hole, second largest footpath and the composition of the diameter holes between hole, first footpath and hole, second largest footpath, one end of described lining is inserted in described hole, first footpath, one end of described clock gauge is inserted into after in lining and extends in hole, first footpath, described conehead lining is provided with through hole, one end of conehead lining is inserted in hole, second largest footpath, one end of described gauge rod is connected with the end being arranged in hole, first footpath of clock gauge, the other end of gauge rod extend in the through hole of conehead lining through after diameter holes, the shaft that gauge rod is arranged in conehead lining through hole is provided with boss, described spring housing is on gauge rod, one end of spring is spacing by the boss on gauge rod, the other end of spring is spacing by the step surface between hole, second largest footpath and diameter holes, one end of described contact is connected with the end of gauge rod with extending in conehead lining.
2. blind hole depth measurement mechanism according to claim 1, it is characterized in that: the outside wall surface of described supporting is provided with pressing plate, this pressing plate ringwise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310377552.XA CN104422376A (en) | 2013-08-27 | 2013-08-27 | Device for measuring blind hole depths |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310377552.XA CN104422376A (en) | 2013-08-27 | 2013-08-27 | Device for measuring blind hole depths |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104422376A true CN104422376A (en) | 2015-03-18 |
Family
ID=52972057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310377552.XA Pending CN104422376A (en) | 2013-08-27 | 2013-08-27 | Device for measuring blind hole depths |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104422376A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966090A (en) * | 2017-11-23 | 2018-04-27 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of probe-type measurement device able to quickly change for detecting narrow slot and thin blind hole depth |
| CN109931852A (en) * | 2019-02-28 | 2019-06-25 | 武汉船用机械有限责任公司 | Blind hole depth supplemental measurement tool and blind hole depth measuring device |
-
2013
- 2013-08-27 CN CN201310377552.XA patent/CN104422376A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966090A (en) * | 2017-11-23 | 2018-04-27 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of probe-type measurement device able to quickly change for detecting narrow slot and thin blind hole depth |
| CN107966090B (en) * | 2017-11-23 | 2020-05-29 | 中国航发沈阳黎明航空发动机有限责任公司 | Quick-replaceable probe type measuring device for detecting depths of narrow groove and fine blind hole |
| CN109931852A (en) * | 2019-02-28 | 2019-06-25 | 武汉船用机械有限责任公司 | Blind hole depth supplemental measurement tool and blind hole depth measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150318 |
|
| WD01 | Invention patent application deemed withdrawn after publication |