CN203811098U - Depth measurement auxiliary tool for inner hole circular grooves - Google Patents
Depth measurement auxiliary tool for inner hole circular grooves Download PDFInfo
- Publication number
- CN203811098U CN203811098U CN201420137270.2U CN201420137270U CN203811098U CN 203811098 U CN203811098 U CN 203811098U CN 201420137270 U CN201420137270 U CN 201420137270U CN 203811098 U CN203811098 U CN 203811098U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- wedge
- inside holes
- inner hole
- depth
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 238000005259 measurement Methods 0.000 title abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000000523 sample Substances 0.000 abstract 4
- 238000001514 detection method Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a depth measurement auxiliary tool for inner hole circular grooves. The tool is composed of a pair of semi-cylindrical wedges which are arranged up and down. The upper semi-cylindrical wedge and the lower semi-cylindrical wedge cooperates with each other through the inclined surfaces, when the end surfaces of the semi-cylindrical wedges are aligned, a complete cylinder is formed, and the diameter of the cylinder is smaller than the inner diameter of the hole in which an inner hole circular groove is arranged. The cylinder surface of the lower semi-cylindrical wedge is provided with a radial probe. The radial probe is perpendicular to the axial projection line of the inclined surface of the lower semi-cylindrical wedge and is arranged on the climax of the arc section of the lower semi-cylindrical wedge. The height of the probe is larger than the depth of the inner hole circular groove, and the width of the probe is smaller than the width of the inner hole circular groove. The depth measurement auxiliary tool for inner hole circular groove has the advantages of high measurement precision, stable performance, easy manufacture, and low manufacture cost.
Description
Technical field
The utility model relates to a kind of testing tool, specifically relates to a kind of inside holes depth survey aid.
Background technology
In existing survey instrument, the internal diameter of inside holes, generally with scissors inside holes internal diameter caliper, test, as Chinese patent literature discloses a kind of scissors inner diameter gauge (publication No.: CN 103411514A, open day: 2013.11.27), although this scissors inner diameter gauge can be very convenient, directly measure rapidly the internal diameter of inside holes, but also there are some problems: one, precision is not high, its swing arm and determining between arm by being articulated and connected, form leverage, the power arm of swing arm (being positioned at the outside part for measuring operation in hole, inside holes place while measuring) length is greater than its resistance arm, the distance that during measurement, moving test hook front end moves with respect to location survey hook front end is greater than the relative distance that swing arm follower head moves on scale, during measurement by fault in enlargement amount, cause measuring accuracy to reduce, its two, unstable properties, its swing arm and determining between arm by the formation leverage that is articulated and connected, swing arm is longer with the length of determine arm, its swing arm while causing measurement, determines arm and is easily out of shape, structural stability is poor, its three, manufacturing cost is high, because its planform is comparatively complicated, the point that affects precision is many, guarantee to reach accuracy requirement, manufacturing expense is higher.
Summary of the invention
The technical matters that the utility model solves is: provide that a kind of measuring accuracy is high, stable and reliable for performance, easy to manufacture, the inside holes depth survey aid of low cost of manufacture.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of inside holes depth survey aid, this instrument is the semicolumn wedge of a pair of upper and lower layout, and upper and lower semicolumn wedge coordinates by its inclined-plane, when its end face, form a complete cylinder, the diameter of this cylinder is less than the internal diameter in hole, inside holes place; On the cylinder of second cylinder wedge, be provided with a radially gauge head, radially the axis projection line on gauge head and inclined-plane is vertical and be positioned at the summit of second cylinder wedge profile camber line for this, and it is highly greater than the degree of depth of inside holes, and its width is less than the width of inside holes.
The inclination angle of inclined plane of described semicolumn wedge is 5.711 °.
Useful technique effect of the present utility model is:
(1) the utility model comprises the semicolumn wedge of a pair of upper and lower layout, upper and lower semicolumn wedge coordinates by its inclined-plane, when its end face, form a complete cylinder, the diameter of this cylinder is less than the internal diameter in hole, inside holes place, their inclined-plane can design according to the workpiece precision prescribed that will measure with respect to the angle of inclination of right cylinder axis, therefore, when making the utility model, according to workpiece precision prescribed, the required precision that can reach by controlling the angle of inclination on inclined-plane, thus accuracy of detection improved;
(2) the semicolumn wedge of upper and lower layout of the present utility model is block, and the inclined-plane cooperatively interacting while detecting is large, therefore the distortion of their inclined-plane is less, product structural better, be not easy distortion, and can determine according to the degree of depth of measured inner hole of workpiece ring groove the length of register pin, so the utility model stable performance, reliable;
(3) the utility model comprises the semicolumn wedge of upper and lower layout and gauge head radially, simple in structure, easy to manufacture, low cost of manufacture.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the vertical view of Fig. 1;
Fig. 4 is measuring principle schematic diagram of the present utility model.
Embodiment
For describing technical characterictic of the present utility model and effect in detail, and can realize according to the content of this instructions, below in conjunction with accompanying drawing, embodiment of the present utility model is further illustrated.
As shown in Figure 1, Figure 2 and Fig. 3, inside holes depth survey aid for a kind of better enforcement side of the present utility model, this instrument is the semicolumn wedge 1,2 of a pair of upper and lower layout, second cylinder wedge 1, first cylinder wedge 2 coordinate by its inclined-plane, when its end face, form a complete cylinder, the diameter of this cylinder is less than the internal diameter in hole, inside holes place; On the cylinder of second cylinder wedge 1, be provided with a radially gauge head 3, radially the axis projection line on gauge head 3 and inclined-plane is vertical and be positioned at the summit of second cylinder wedge 1 profile camber line for this, radially gauge head 3 is highly greater than the degree of depth of inside holes, and radially gauge head 3 width are less than the width of inside holes.Radially the fixed form between gauge head 3 and second cylinder wedge 1 can be: on the cylinder of second cylinder wedge 1, locate out a counterbore, radially one end of gauge head 3 packs in this counterbore and is connected with this counterbore interference fit.
Use procedure of the present utility model and measuring principle are as follows: referring to Fig. 1 and Fig. 4, the inclination angle beta on inclined-plane is predetermined when making the utility model, is known quantity; The length sum that the cylindrical diameter that second cylinder wedge 1, first cylinder wedge 2 are combined into and gauge head 3 radially radially extend on second cylinder wedge 1 cylinder is that the diameter in hole at the inside holes place of A and workpiece 4 is B, wherein, the value of A and B can directly measure by enough milscales.While constructing with the utility model, according to surveyed workpiece permissible accuracy, select suitable inclination angle beta, complete after aforementioned tools selection, first second cylinder wedge 1 is had in the hole in hole at inside holes place that end plug of gauge head 3 radially enters detected member, the inclined-plane of second cylinder wedge 1 is upwards to facilitate late detection work, and radially the front end of gauge head 3 stretches in inside holes, thereby second cylinder wedge 1 location, limiting this second cylinder wedge 1 moves along the axial direction in the hole at inside holes place, certainly in order to avoid second cylinder wedge 1 to move along the axial direction in the hole at described inside holes place completely, radially the front end of gauge head 3 should be suitable with the width of described inside holes, then first cylinder wedge 2 is placed on aforementioned second cylinder wedge 1, promote this first cylinder wedge 2 slides on the inclined-plane of second cylinder wedge 1, first cylinder wedge 2 slidings are entered in the hole in hole at described inside holes place and jam-packed, when promoting first cylinder wedge 2, note keeping sideline, both sides, the inclined-plane alignment of second cylinder wedge 1, first cylinder wedge 2, next, the distance that is positioned at that end end face of outside, hole, inside holes place with respect to second cylinder wedge 1 of measuring with micrometric depth gauge that first cylinder wedge 2 slides is X, finally according to formula:
Y=X×tgβ+A
Z=Y-B
Calculate the measured value of the inside holes degree of depth that will measure, wherein,
What X slided for first cylinder wedge 2 is positioned at the distance of that end end face of hole, inside holes place outside with respect to second cylinder wedge 1;
Y is indirect measurement;
The inside holes degree of depth of Z for needing to measure;
β is the angle of inclination that the inclined-plane of second cylinder wedge 1, first cylinder wedge 2 tilts with respect to described right cylinder axis;
The cylindrical diameter that A is combined into for second cylinder wedge 1 and first cylinder wedge 2 and the length sum that radially gauge head 3 radially extends on second cylinder wedge 1 arc surface;
B is the diameter in the hole at inside holes place.
From finding out above, the utility model be the inside holes degree of depth is converted to first cylinder wedge 2 slides with respect to second cylinder wedge 1, be positioned at the distance of that end end face of outside, hole, inside holes place, with micrometric depth gauge, measure and record this distance again, then by the above-mentioned respective interior bores ring groove degree of depth that calculates, certainly obtained the inside holes degree of depth and also just obtained the diameter of inside holes, can obtain by formula Z=2Y-B.As can be seen here, the utility model helps out in testing process.
By formula Y=X * tg β+A and Z=Y-B, can find out, in the situation that measuring A, B and X value with the accuracy detection instrument that meets the demands, precision and the tg β of the inside holes degree of depth of measuring are inversely proportional to, be that the larger the utility model measuring accuracy of β is just lower, otherwise higher, while therefore, making the utility model, should choose suitable inclination angle beta according to workpiece precision prescribed.For the ease of calculating and workpiece precision prescribed, the inclined-plane of second cylinder wedge 1, first cylinder wedge 2 is that the degree of tilt that tilts with respect to the described right cylinder axis dip plane that is 1:10 is for better, β value is 5.711 ° in this case, the error of precision of now calculating the inside holes degree of depth of gained by these two formula is reduced into 1/10th, thereby improves accuracy of detection.
Above with reference to embodiment, the utility model being have been described in detail, is illustrative and not restrictive, in the variation and the modification that do not depart under the utility model general plotting, all within protection domain of the present utility model.
Claims (2)
1. an inside holes depth survey aid, it is characterized in that, this instrument is the semicolumn wedge of a pair of upper and lower layout, upper and lower semicolumn wedge coordinates by its inclined-plane, when its end face, form a complete cylinder, the diameter of this cylinder is less than the internal diameter in hole, inside holes place; On the cylinder of second cylinder wedge, be provided with a radially gauge head, radially the axis projection line on gauge head and inclined-plane is vertical and be positioned at the summit of second cylinder wedge profile camber line for this, and it is highly greater than the degree of depth of inside holes, and its width is less than the width of inside holes.
2. inside holes depth survey aid as claimed in claim 1, is characterized in that, the inclination angle of inclined plane of described semicolumn wedge is 5.711 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420137270.2U CN203811098U (en) | 2014-03-25 | 2014-03-25 | Depth measurement auxiliary tool for inner hole circular grooves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420137270.2U CN203811098U (en) | 2014-03-25 | 2014-03-25 | Depth measurement auxiliary tool for inner hole circular grooves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203811098U true CN203811098U (en) | 2014-09-03 |
Family
ID=51449836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420137270.2U Expired - Lifetime CN203811098U (en) | 2014-03-25 | 2014-03-25 | Depth measurement auxiliary tool for inner hole circular grooves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203811098U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352391A (en) * | 2015-11-28 | 2016-02-24 | 贵州黎阳航空动力有限公司 | Measuring method for dimension of positions of two ends of anisotropically-truncated conduit |
| CN105928444A (en) * | 2016-06-16 | 2016-09-07 | 江苏飞船股份有限公司 | Tool for detecting size from internal annular groove of axle hole of half axle gear to outer end surface |
-
2014
- 2014-03-25 CN CN201420137270.2U patent/CN203811098U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352391A (en) * | 2015-11-28 | 2016-02-24 | 贵州黎阳航空动力有限公司 | Measuring method for dimension of positions of two ends of anisotropically-truncated conduit |
| CN105352391B (en) * | 2015-11-28 | 2018-02-16 | 贵州黎阳航空动力有限公司 | A kind of measuring method of incorgruous bevel conduit end positions size |
| CN105928444A (en) * | 2016-06-16 | 2016-09-07 | 江苏飞船股份有限公司 | Tool for detecting size from internal annular groove of axle hole of half axle gear to outer end surface |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106482690B (en) | A kind of gear wheel involute model | |
| CN102506632A (en) | Device for measuring taper hole | |
| CN205482688U (en) | Multi -functional slide caliper makes up measuring tool | |
| CN201680802U (en) | Hole position accuracy measuring device of large-scale turntable bearing | |
| CN203811098U (en) | Depth measurement auxiliary tool for inner hole circular grooves | |
| CN201876211U (en) | Cross rule for detecting size of large cylindrical forging | |
| CN205981056U (en) | Measure device at internal cone angle | |
| CN103196397B (en) | A kind of vertical deep hole linear degree laser detector | |
| CN103075988A (en) | Device for rapidly detecting inner diameter and height of magnetic shoe housing assembly | |
| CN203156745U (en) | Casting workblank marking tool | |
| CN205066614U (en) | Measuring tool of forked tail degree face | |
| CN202048899U (en) | Shaft end measuring swing rod | |
| CN110836624A (en) | Inner and outer seam allowance measuring tool for disc ring type parts and using method thereof | |
| CN202329460U (en) | Taper hole measurement device | |
| CN105423840A (en) | Testing fixture for detecting depth of spark plug | |
| CN203611148U (en) | Support test tooling | |
| CN203824467U (en) | Outer arc intersection point position and bounce measuring tester | |
| CN203148362U (en) | Vernier caliper measuring hole-groove symmetry degree | |
| CN202947581U (en) | Gauge for crankshaft end face connection hole location degree | |
| CN203011317U (en) | Boring depth measurement scale for internal screw thread in oil well pipe | |
| CN205941548U (en) | Trapped orbit formula concrete shrinkage test device | |
| CN204329872U (en) | A kind of frock detecting the face of cylinder and cylinder end face squareness | |
| CN220670359U (en) | Rag bolt detection caliper capable of determining error range | |
| CN204988127U (en) | A examine utensil for detecting outer face of cylinder of piston head and outer circular conical surface diameter of section | |
| CN104154836A (en) | Gauge for measuring A value of lifting socket of lever |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140903 |