CN101713629A

CN101713629A - Height measuring instrument

Info

Publication number: CN101713629A
Application number: CN 200810304774
Authority: CN
Inventors: 林后尧
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2008-10-08
Filing date: 2008-10-08
Publication date: 2010-05-26
Anticipated expiration: 2028-10-08
Also published as: CN101713629B

Abstract

The invention provides a height measuring instrument which comprises a base, a guide rod, an extension rod and a height gage, wherein the guide rod is fixed on the base; the extension rod comprises a slide part which can be slidably sleeved on the guide rod and used for the axially moving along the guide rod; the height gage is arranged at one end of the extension rod away from the guide rod; the extension rod is provided with a first extension part and a second extension part parallel to the first extension part; one ends of the first extension part and the second extension part, which are away from the guide rod, are respectively provided with a connecting part used for connecting the first extension part and the second extension part; and the second extension part can slide and rotate relative to the connecting part. The invention also provides a height measuring method utilizing the height measuring instrument to measure.

Description

Height measuring instrument

Technical field

The present invention relates to measuring technique, relate in particular to a kind of height measuring instrument.

Background technology

Highly measure as an importance in the measuring technique, the height measuring instrument that needs to be fit to various measurement situations measures.Disclosed a kind of height detection method among the paper A NovelOptical Method of Dimension Measurement of Objects with Circular Cross-section that in the international symposium (Instrumentation and Measurement Technology Conference) of IEEE system, instrument and detection technique in 2006, delivers as people such as Tomas Fischer.

At present, height measuring instrument mainly is made of base, guide rod, extension rod and height gage.Base is mainly used in parts such as fixed bearing guide rod.During measurement, earlier element to be measured is positioned on the base, then along the height of guide rod axial adjustment extension rod, make the height gage that is sheathed in the extension rod move with extension rod, finely tune height gage again the measurement probe of height gage is contacted with element to be measured, then the spacing of susceptor surface and measurement probe is the height of element to be measured.But, the length of the extension rod of existing height measuring instrument is fixed, and the direction of its extension is also fixing, thereby can not measure the height that has a plurality of surface locations of differing heights difference on the same element under test easily, and its measurement range and efficiency of measurement are very limited.

Therefore, be necessary to provide the scalable height measuring instrument that turns to that a kind of measurement range is wide, efficiency of measurement is high.

Summary of the invention

To a kind of scalable height measuring instrument that turns to be described with specific embodiment below.

A kind of height measuring instrument, comprise base, guide rod, extension rod and height gage, described guide rod is fixed in base, described extension rod comprises the sliding part that slidably is sheathed on guide rod, be used for moving axially along guide rod, described height gage is located at the end of extension rod away from guide rod, described extension rod has first extension and second extension parallel with first extension, first extension and second extension are provided with a junction away from an end of guide rod, be used to connect first extension and second extension, described second extension can and rotate relative to this connecting portion slip.

A kind of height-measuring method comprises step: element to be measured and aforesaid height measuring instrument are provided, comprise primary importance, the second place and the 3rd position of height to be measured on the described element to be measured; Measure the height of primary importance; Extend second extension, measure the height of the second place; Rotate second extension, measure the height of the 3rd position.

With respect to prior art, the height measuring instrument of the technical program and height-measuring method have following advantage: at first, it utilizes extendible second extension to extend to needs to measure the height of element to be measured in this position again after the length, has enlarged to measure the zone; Secondly, it can measure the height of element to be measured in the another location after utilizing the rotation of second extension, need not move element to be measured, has not only enlarged to measure the zone, has also improved efficiency of measurement.

Description of drawings

Fig. 1 is the synoptic diagram of the height measuring instrument that provides of the technical program embodiment.

Fig. 2 is the element synoptic diagram to be measured that the technical program comprises three measuring positions (A, B, C).

Fig. 3 is the synoptic diagram that the precise measure instrument of the height measuring instrument of the technical program makes zero.

Fig. 4 is the synoptic diagram that the height measuring instrument of the technical program is measured place, A position height.

Fig. 5 is the synoptic diagram that the height measuring instrument of the technical program is measured place, B position height.

Fig. 6 is the synoptic diagram that the height measuring instrument of the technical program is measured place, C position height.

Embodiment

Be described in further detail below in conjunction with the height measuring instrument of accompanying drawing the technical program.

See also Fig. 1, the height measuring instrument 100 that the technical program embodiment provides comprises base 10, guide rod 20, extension rod 30 and height gage 40.

Base 10 has first surface 12 and second surface 14.Described first surface 12 is parallel relative with second surface 14.First surface 12 is the plane, and it is used to carry element to be measured.

Guide rod 20 is fixed in base 10 and vertical with base 10, and is promptly vertical with first surface 12.Guide rod 20 is approximately right cylinder.

Extension rod 30 comprises sliding part 31, first extension 32, second extension 33, fixed screw 34, connecting portion 35 and horizontal bubble instrument 36.First extension 32 and second extension 33 are provided with a junction 35 away from an end of guide rod 20, are used to connect first extension 32 and second extension 33, thereby second extension 33 can and rotate relative to these connecting portion 35 slips.In the present embodiment, described connecting portion 35 is a coupling bolt.

Sliding part 31 is approximately cylindric, and internal aperture is slightly larger than the external diameter of guide rod 20 matching with guide rod 20.Sliding part 31 slidably is sheathed on guide rod 20, with so that extension rod 30 can be along the moving axially of guide rod 20, thus the distance of regulating the first surface 12 of extension rod 30 relative bases 10.One end of sliding part 31 is connected with fixed screw 34.Fixed screw 34 is used for sliding part 31 locking, so that the relative guide rods of sliding part 31 20 are fixing, thereby makes extension rod 30 relative fixed of fixing with sliding part 31 in guide rod 20.

One end of first extension 32 and sliding part 32 are fixing, and it is parallel to the first surface 12 of base 10.The other end of first extension 32 has a connecting hole 322 that matches with connecting portion 35.

Second extension 33 is parallel with first extension 32.Second extension 33 away from an end of guide rod 20 have can sheathed level altitude rule 40 through hole 302.

Second extension 33 offers sliding tray 334 along extending axis direction.Sliding tray 334 is made of two semi-circular hole 336 that are positioned at two ends and the slot 338 that is communicated with described two semi-circular hole 336.The equal diameters of the width of slot 338 and semi-circular hole 336.Thereby connecting portion 35 can pass connecting hole 322 and sliding tray 334, to be connected and fixed second extension 33 and first extension 32.

Horizontal bubble instrument 36 is fixedly arranged on second extension 33, is used to judge whether level of second extension 33.

Height gage 40 comprises activity measuring staff 41, precise measure device 42 and measures probe 43.Height gage 40 is located at extension rod 30 away from an end of guide rod 20 and perpendicular to base 10, is used for moving along the direction perpendicular to extension rod 30 and base 10.

Activity measuring staff 41 vertical sleeves are located at extension rod 30, and it can move relative to the direction of extension rod 30 along the first surface 12 of vertical base 10.

Precise measure device 42 is fixed in the end of activity measuring staff 41 away from base 10, is used to obtain measurement probe 43 height values that measure.

Measure probe 43 and be fixed in the end of activity measuring staff 41, be used for contacting to obtain element to be measured at the height value that measures probe 43 correspondence positions with element to be measured near base 10.

The height measuring instrument 100 of the technical program utilizes second extension 33 relative to the slip of first extension 32 and rotate, and has enlarged to measure the zone, has improved measurement efficient.

The method that the technical program embodiment also provides a kind of height that utilizes above-mentioned height measuring instrument 100 to treat measuring sensor to measure, it may further comprise the steps:

The first step provides element 200 to be measured and above-mentioned height measuring instrument 100.

See also Fig. 2, described element 200 to be measured has three positions to be measured, i.e. primary importance A, second place B and the 3rd position C.Wherein, the bearing of trend of described primary importance A, second place B and first extension 32 is in same rectilinear direction, and the bearing of trend of described the 3rd position C and first extension 32 is not in same rectilinear direction.

In second step, height measuring instrument 100 is made zero.

See also Fig. 3, probe 43 is close to the first surface 12 of base 10 with measuring, and contacts with first surface 12 until it, and the displayed value of precise measure device 42 is returned to zero.At this moment, height measuring instrument 100 is a reference zero with the height at first surface 12 places.

The 3rd goes on foot, and element 200 to be measured is positioned over the base 10 of height measuring instrument 100.

See also Fig. 4, element 200 to be tested is positioned over the first surface 12 of described base 10, make the bottom surface of element 200 to be tested fit in first surface 12, and the primary importance A that makes element 200 to be tested and the measurement of height gage 40 are popped one's head in 43 relative.

The 4th step, the height of measurement primary importance A.

Make to measure probe 43, contact with the primary importance A position of element 200 to be tested, can read the height value H1 at primary importance A place from precise measure device 42 until it to moving near base 10 directions.

The 5th step extended to second place B position with second extension 33, measured the height of second place B.

See also Fig. 5, unclamp connecting portion 35, second extension 33 is extended to second place B position, make to measure probe 43 and contact, tighten connecting portion 35 with second place B position.

Regulate the elasticity of connecting portion 35, make the bubble of horizontal bubble instrument 36 be in horizontality, thus second extension, 33 levels.Then, read the height value H2 of second place B position from precise measure device 42.

The 6th step turned to C position, the 3rd position with second extension 33, measured the height of the 3rd position C.

See also Fig. 6, unclamp connecting portion 35, second extension 33 is turned to C position, the 3rd position, make to measure probe 43 and contact, tighten connecting portion 35 with the 3rd position C.

Regulate the elasticity of connecting portion 35, make the bubble of horizontal bubble instrument 36 be in horizontality, thus second extension, 33 levels.Then, read the height value H3 of C position, the 3rd position from precise measure device 42.

Certainly, if will measure the height of the relative primary importance A of second place B, also can make and measure probe 43 and contact with primary importance A position, precise measure device 42 is made zero, make again to measure probe 43 and contact, then can from precise measure device 42, directly read the height of the relative primary importance A of second place B with second place B position.

Be understandable that, for the person of ordinary skill of the art, can make other various corresponding changes and distortion, and all these change the protection domain that all should belong to the technical program claim with distortion according to the technical conceive of the technical program.

Claims

1. height measuring instrument, comprise base, guide rod, extension rod and height gage, described guide rod is fixed in base, described extension rod comprises the sliding part that slidably is sheathed on guide rod, be used for moving axially along guide rod, described height gage is located at the end of extension rod away from guide rod, it is characterized in that, described extension rod has first extension and second extension parallel with first extension, first extension and second extension are provided with a junction away from an end of guide rod, be used to connect first extension and second extension, described second extension can and rotate relative to this connecting portion slip.

2. height measuring instrument as claimed in claim 1 is characterized in that, described second extension is installed with horizontal bubble instrument, and horizontal bubble instrument is parallel to the bearing of trend of second extension.

3. height measuring instrument as claimed in claim 1 is characterized in that, is connected by sliding part between described first extension rod and guide rod, and first extension rod is fixed in sliding part, and sliding part can move axially along guide rod.

4. height measuring instrument as claimed in claim 3 is characterized in that, between described guide rod and sliding part fixed screw is set, and fixed screw can screw to the guide rod direction from sliding part, so that the sliding part relative fixed is in guide rod.

5. height measuring instrument as claimed in claim 1, it is characterized in that, one end of described first extension has threaded hole, and described second extension is offered sliding tray along its bearing of trend, and connecting portion is connected first extension and second extension by threaded hole with sliding tray.

6. height measuring instrument as claimed in claim 1, it is characterized in that, described height gage comprises activity measuring staff, precise measure device and measures probe, activity measuring staff vertical sleeve is located at extension rod, the precise measure device is fixed in the end of activity measuring staff away from base, be used to obtain the height value that the measurement probe measures, measure probe and is fixed in the end of activity measuring staff, be used for contacting to obtain the height value of element to be measured at measurement probe correspondence position with element to be measured near base.

7. height-measuring method comprises step:

Element to be measured and height measuring instrument as claimed in claim 1 are provided, comprise primary importance, the second place and the 3rd position of height to be measured on the described element to be measured;

Measure the height of primary importance;

Extend second extension, measure the height of the second place;

Rotate second extension, measure the height of the 3rd position.

8. height measuring instrument as claimed in claim 7 is characterized in that, before the height of measurement primary importance, height measuring instrument is made zero.

9. height measuring instrument as claimed in claim 7 is characterized in that, described primary importance, the second place and the first extension bearing of trend are in same rectilinear direction, and described the 3rd position and the first extension bearing of trend be not in same rectilinear direction.