CN103697786A - Measuring tool and method for measuring size of large-excircle workpiece by adopting same - Google Patents
Measuring tool and method for measuring size of large-excircle workpiece by adopting same Download PDFInfo
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- CN103697786A CN103697786A CN201310705978.3A CN201310705978A CN103697786A CN 103697786 A CN103697786 A CN 103697786A CN 201310705978 A CN201310705978 A CN 201310705978A CN 103697786 A CN103697786 A CN 103697786A
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Abstract
The invention relates to a measuring tool. The measuring tool comprises a main scale and a vernier scale, wherein the main scale is provided with a left clamping foot, the vernier scale is provided with a right clamping foot, a support seat is arranged on the right clamping foot, a dial gauge is mounted on the support seat, and a gauge head of the dial gauge is arranged opposite to the left clamping foot. According to the measuring tool, the size of a machining excircle can be obtained through directly measuring the excircle without the conversion of other measuring tools, and then, indirect measurement errors are eliminated. A method for measuring the size of a large-excircle workpiece by adopting the measuring tool comprises the steps: firstly, measuring the size of a standard workpiece, then, measuring the standard workpiece by using the improved measuring tool, and recording a millimeter scale A on the main scale and an indexing scale B of a pointer of the dial gauge; continuing to measure a machining workpiece to be measured, and recording a millimeter scale C on the main scale and an indexing scale D of the dial gauge; calculating the difference value E between the indexing scale D and the indexing scale B, thereby obtaining the size of the machining workpiece to be measured, which is equal to the sum of the size of the standard workpiece and the obtained difference value E. The method has the advantages that the influence on measurement caused by hand feeling and temperature is avoided, and the accuracy of measurement is improved.
Description
Technical field
A kind of method that the present invention relates to measurer and adopt the large cylindrical workpiece size of this gage measuring.
Background technology
Measurement for major diameter tolerance was first to use vernier caliper measurement in the past, with micrometer inside caliper, measure the size that vernier caliper draws processing work again, the major defect of this measurement is: itself exists error vernier caliper, twice measurement has indirect error, and different people's measurements can show that different sizes does not exist feel error.
And measuring method in the past is easily subject to the impact of environment temperature, when temperature fluctuation is larger, press traditional measurement method, different time sections removes to measure workpiece can draw diverse size, cause very large puzzlement can to like this production and processing and part quality, tend to occur doing over again and overproof phenomenon.
Summary of the invention
The technical problem to be solved in the present invention is: a kind of method that measurer is provided and adopts the large cylindrical workpiece size of this gage measuring, and can avoid indirectly measuring the error of bringing, and avoid feel, temperature on the impact of measuring, improve measuring accuracy.
The technical solution adopted for the present invention to solve the technical problems is: a kind of measurer, comprise main scale and vernier, on described main scale, there is left card base, on vernier, there is the right card base coordinating with left card base, on described right card base, be fixedly installed bearing, dial gauge is installed on bearing, and the gauge head of dial gauge stretches out bearing and left card base and is and is oppositely arranged.
Further, on described right card base, offer vertical slot, between bearing and right card base, by bolt, form a fixed connection, bolt is fixed together bearing and right card base through vertical slot.
A method that adopts the large cylindrical workpiece size of above-mentioned gage measuring, has following steps:
A, get a standard component and workpiece to be measured as in same environment temperature, and record the size of standard component;
B, adopt the cylindrical of above-mentioned gage measuring standard component, record the millimeter scale A on main scale, record the calibrated dial B of dial gauge pointer;
C, adopt this measurer to continue to measure the cylindrical of workpiece to be measured, record the millimeter scale C on main scale, record the calibrated dial D of dial gauge;
Difference E between d, calculating calibrated dial D and calibrated dial B;
If the numerical value of e millimeter scale A and millimeter scale C is equal, the size that workpiece so to be measured is of a size of standard component adds gained difference E;
If the numerical value of millimeter scale A and millimeter scale C is unequal, carry out next step;
Difference F between f, calculating millimeter scale C and millimeter scale A, the size that processing so to be measured is of a size of standard component adds difference E and the difference F of gained.
Further, in described step a, the size of standard component draws through three coordinate measuring engine measurement.
The invention has the beneficial effects as follows: measurer can draw processing excircles size by direct-detection cylindrical, without changing by other measurers, therefore eliminate indirect error; Measurer is simple and easy to use, and measured value can intuitively reflect by dial gauge, and the result that different people is measured is in full accord, has therefore eliminated operative employee and checker's feel error.
And under the cooperation that is in a standard component under environment temperature together through, their real-time status is consistent, can avoid ambient temperature on the impact of measuring, realize workpiece is measured accurately; Finally this measurer is simple in structure, only need on original vernier caliper, change, and replaces special measuring tool, cost-saving.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is structural representation of the present invention.
In figure 1, main scale, 2, vernier, 3, bearing, 4, dial gauge.
Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, basic structure of the present invention is only described in a schematic way, so it only show the formation relevant with the present invention.
As shown in Figure 1, a kind of measurer of being convenient to accurately measure large cylindrical workpiece size, comprise main scale 1 and vernier 2, on main scale 1, there is left card base, on vernier 2, there is the right card base coordinating with left card base, on right card base, be fixedly installed bearing 3, dial gauge 4 is installed on bearing 3, the gauge head of dial gauge 4 stretches out bearing 3 and is and is oppositely arranged with left card base, and the gauge rod part of dial gauge 4 is relative vertical stratification with respect to the catch surface of left card base, and gauge head is positioned at the end of gauge rod.When need are measured, moving cursor 2 makes left card base and gauge head hold object to be measured, and measured value reflects through dial gauge 4.
Measurer can draw processing excircles size by direct-detection cylindrical, without changing by other measurers, therefore eliminates indirect error; Measurer is simple and easy to use, and measured value can intuitively reflect by dial gauge 4, and the result that different people is measured is in full accord, has therefore eliminated operative employee and checker's feel error.
For the convenient height of dial gauge 4 on bearing 3 that regulate, by bearing 3 be designed to can be on right card base structure moving up and down, this structure is: on right card base, offer vertical slot, between bearing 3 and right card base, by bolt, form a fixed connection, bolt is fixed together bearing 3 and right card base through vertical slot.When needs change bearing 3 positions, by adjusting loose bolt, then mobile support saddle 3, the fixed position of the last mode mobile support saddle 3 at fastening bolt.
A method that adopts the large cylindrical workpiece size of above-mentioned gage measuring, has following steps:
A, get a standard component and workpiece to be measured as in same environment temperature, and record the size of standard component; The size of standard component draws through three coordinate measuring engine measurement.It is exactly to use three coordinate measuring machine workpiece to be carried out to detection and the measurement of form and position tolerance that three-dimensional detects, three coordinate measuring machine is as a kind of precision, efficient space length surveying instrument, it can realize the surveying work that many traditional measurement utensils can not complete, and its efficiency exceeds tens times even tens times than traditional measuring appliance.Through the size of three coordinate measuring engine measurement standard component, can provide for follow-up workpiece size an accurate reference value.
B, adopt the cylindrical of above-mentioned gage measuring standard component, record the millimeter scale A on main scale 1, record the calibrated dial B of dial gauge 4 pointers;
C, adopt this measurer to continue to measure the cylindrical of workpiece to be measured, record the millimeter scale C on main scale 1, record the calibrated dial D of dial gauge 4;
Difference E between d, calculating calibrated dial D and calibrated dial B;
If the numerical value of e millimeter scale A and millimeter scale C is equal, the size that workpiece so to be measured is of a size of standard component adds gained difference E;
If the numerical value of millimeter scale A and millimeter scale C is unequal, carry out next step;
Difference F between f, calculating millimeter scale C and millimeter scale A, the size that processing so to be measured is of a size of standard component adds difference E and the difference F of gained.
The numerical value of so-called millimeter scale for can directly checking on main scale 1, for example millimeter scale is presented between 25 and 26, and millimeter scale is 25, i.e. the integral part of the part of surveying; So-called calibrated dial is the position of dial gauge 4 pointers indication in 100 lattice of dial plate, for example, refer to, at 45 lattice, so just represent 0.45mm.
Embodiment mono-, selection standard part, the standard component recording through three coordinate measuring machine is of a size of 15.255mm, then with this standard component of gage measuring, the millimeter scale A recording on main scale 1 is 35mm, and calibrated dial B is that 50(is 0.50mm), adopt this measurer to continue to measure the cylindrical of workpiece to be measured, the millimeter scale C recording on main scale 1 is 35mm, and the calibrated dial D that records dial gauge 4 is 65(0.65mm); Now millimeter scale A and millimeter scale C equate to be 35mm, calculate the difference E between calibrated dial D and calibrated dial B, calculating difference E is 0.65mm-0.50mm=0.15mm, the size that workpiece so to be measured is of a size of standard component adds gained difference E, i.e. 15.255mm+0.15mm=15.405mm.
Embodiment bis-, selection standard part, the standard component recording through three coordinate measuring machine is of a size of 15.255mm, then with this standard component of gage measuring, the millimeter scale A recording on main scale 1 is 35mm, and calibrated dial B is that 50(is 0.50mm), adopt this measurer to continue to measure the cylindrical of workpiece to be measured, the millimeter scale C recording on main scale 1 is 36mm, and the calibrated dial D that records dial gauge 4 is 65(0.65mm); Now millimeter scale A and millimeter scale C are unequal, calculate the difference F between millimeter scale C and millimeter scale A, be difference F=36mm-35mm=1mm, difference E between calibrated dial D and calibrated dial B, be difference E=0.65mm-0.50mm=0.15mm, the size that processing so to be measured is of a size of standard component adds difference E and difference F, the i.e. 15.255mm+1mm+0.15mm=16.405mm of gained.
This improves measurer and is used in conjunction with together through standard component, standard component and workpiece are in together under an environment temperature, their real-time status is consistent, therefore no matter standard component is state or the state in " contracting " in " rising " in physical environment, the data that all detect in three-dimensional by it are measuring basis, so just can eliminate the impact of temperature on workpiece size.
The above-mentioned foundation desirable embodiment of the present invention of take is enlightenment, and by above-mentioned description, relevant staff can, within not departing from the scope of this invention technological thought, carry out various change and modification completely.The technical scope of this invention is not limited to the content on instructions, must determine its technical scope according to claim scope.
Claims (4)
1. a measurer, comprise main scale (1) and vernier (1), it is characterized in that, described main scale has left card base on (1), on vernier (1), there is the right card base coordinating with left card base, on described right card base, be fixedly installed bearing (3), dial gauge (4) is installed on bearing (3), the gauge head of dial gauge (4) stretches out bearing (3) and is and is oppositely arranged with left card base.
2. a kind of measurer according to claim 1, is characterized in that, on described right card base, offers vertical slot, between bearing (3) and right card base, by bolt, forms a fixed connection, and bolt is fixed together bearing (3) and right card base through vertical slot.
3. adopt a method for the large cylindrical workpiece size of above-mentioned gage measuring, it is characterized in that thering are following steps:
A, get a standard component and workpiece to be measured as in same environment temperature, and record the size of standard component;
B, adopt the cylindrical of above-mentioned gage measuring standard component, record the millimeter scale A on main scale (1), record the calibrated dial B of dial gauge (4) pointer;
C, adopt this measurer to continue to measure the cylindrical of workpiece to be measured, record the millimeter scale C on main scale (1), record the calibrated dial D of dial gauge (4);
Difference E between d, calculating calibrated dial D and calibrated dial B;
If the numerical value of e millimeter scale A and millimeter scale C is equal, the size that workpiece so to be measured is of a size of standard component adds gained difference E;
If the numerical value of millimeter scale A and millimeter scale C is unequal, carry out next step;
Difference F between f, calculating millimeter scale C and millimeter scale A, the size that processing so to be measured is of a size of standard component adds difference E and the difference F of gained.
4. a kind of method of measuring large cylindrical workpiece size according to claim 3, is characterized in that, in described step a, the size of standard component draws through three coordinate measuring engine measurement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310705978.3A CN103697786A (en) | 2013-12-19 | 2013-12-19 | Measuring tool and method for measuring size of large-excircle workpiece by adopting same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310705978.3A CN103697786A (en) | 2013-12-19 | 2013-12-19 | Measuring tool and method for measuring size of large-excircle workpiece by adopting same |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2129131B (en) * | 1982-10-27 | 1986-07-30 | Massey Ferguson Perkins Ltd | Caliper gauge |
| CN2424443Y (en) * | 2000-06-09 | 2001-03-21 | 杨永涛 | Vernier caliper |
| CN202074906U (en) * | 2011-05-13 | 2011-12-14 | 天津市中海上达机械制造有限公司 | Measuring device for measuring large end of taper hole |
| CN103278071A (en) * | 2013-06-07 | 2013-09-04 | 江苏宏泰石化机械有限公司 | Universal measuring tool and measuring method of diameter of trapezoid packing ring groove |
-
2013
- 2013-12-19 CN CN201310705978.3A patent/CN103697786A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2129131B (en) * | 1982-10-27 | 1986-07-30 | Massey Ferguson Perkins Ltd | Caliper gauge |
| CN2424443Y (en) * | 2000-06-09 | 2001-03-21 | 杨永涛 | Vernier caliper |
| CN202074906U (en) * | 2011-05-13 | 2011-12-14 | 天津市中海上达机械制造有限公司 | Measuring device for measuring large end of taper hole |
| CN103278071A (en) * | 2013-06-07 | 2013-09-04 | 江苏宏泰石化机械有限公司 | Universal measuring tool and measuring method of diameter of trapezoid packing ring groove |
Non-Patent Citations (2)
| Title |
|---|
| 张凤奎: "千分表卡尺的简易改装及应用", 《金属加工（冷加工）》, no. 1, 31 December 1982 (1982-12-31) * |
| 王英: "带表卡尺设计及精度分析", 《机械工程师》, no. 6, 31 December 2011 (2011-12-31) * |
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Application publication date: 20140402 |