CN105444657A - Simple method and device for measuring flatness - Google Patents
Simple method and device for measuring flatness Download PDFInfo
- Publication number
- CN105444657A CN105444657A CN201511002212.4A CN201511002212A CN105444657A CN 105444657 A CN105444657 A CN 105444657A CN 201511002212 A CN201511002212 A CN 201511002212A CN 105444657 A CN105444657 A CN 105444657A
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- China
- Prior art keywords
- steel wire
- magnetic absorbing
- absorbing seat
- draw ring
- seats
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/28—Measuring arrangements characterised by the use of mechanical techniques for measuring roughness or irregularity of surfaces
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The invention relates to a simple method and device for measuring flatness and belongs to the detection technical field. According to the technical schemes of the invention, the height of pulling rings (6) on three fixed magnetic suction seats (4) is consistent with the height of a pulling ring (6) of a movable magnet suction seat (1); two steel wires are a steel wire A (3) and a steel wire B (7) respectively, wherein the steel wire A (3) and the steel wire B (7) are arranged in an intersecting manner; two ends of the steel wire A are respectively tied to the pulling rings of two fixed magnetic suction seats; tow ends of the steel wire B are respectively tied to the pulling rings of the other fixed magnetic suction seat and the movable magnet suction seat; and the intersection point of the steel wire A (3) and the steel wire B (7) is plugged into a feeler gauge. According to the simple method for measuring flatness, a datum surface is determined, and representative portions are selected to be compared with the datum surface one by one. The method is scientific and accurate. With the method and device adopted, stressed and tensioned steel wires will not be bent and deformed. The device has the advantages of simple structure, portable convenience, reliable measurement data, low cost and convenience in popularization and application.
Description
Technical field
The present invention relates to a kind of short-cut method and device of measurement plane degree, belong to detection technique field.
Background technology
After manufacturing, process, transport and depositing, distortion in various degree can be there is in Big Diameter Flange, steel plate or some main equipments, so, to detect its entirety or part plan degree when acceptance of delivery.The common measuring method of background technology has two kinds: one to be use pulse planometer to measure; Another kind uses Steel Ruler or aluminium thick stick to measure.Pulse planometer belongs to import instrument, and costly, complicated operation, be applicable to high-precision product, popularization degree is poor; Use Steel Ruler or the lining of aluminium thick stick, be replace flatness data by the linearity data of single direction in fact, lack scientific, Steel Ruler or aluminium thick stick themselves bend degree can have a strong impact on measurement result simultaneously, and accuracy is very poor.
Summary of the invention
The object of the invention is to provide a kind of short-cut method and device of measurement plane degree, to semi-manufacture or finished level degree implement quick, easy, effectively measure, cost is low, and data are reliable, solves Problems existing in background technology.
Technical scheme of the present invention is:
A simple device for measurement plane degree, comprise three fixing magnetic absorbing seats, mobile magnetic absorbing seat, two steel wires, clearance gauge, three fixing magnetic absorbing seats and a mobile magnetic absorbing seat are all be made up of magnet and draw ring, are provided with draw ring above magnet; Three fixing magnetic absorbing seats are consistent with the draw ring height of a mobile magnetic absorbing seat; Two steel wires are steel wire one and steel wire two, steel wire one and steel wire two arranged crosswise, and the two ends of steel wire one are fastened respectively on the draw ring of two fixing magnetic absorbing seats, and the two ends of steel wire two are fastened respectively on the draw ring of another fixing magnetic absorbing seat and mobile magnetic absorbing seat; Clearance gauge is filled in the point of crossing of steel wire one and steel wire two.
Described magnet is circular platform type, and the upper surface central point of round platform is provided with draw ring.
The easy of measurement plane degree has a method, comprises following steps:
1. being placed in platform or plane by inspection workpiece, drawing an incircle by inspection workpiece tested surface, circumferentially marking eight Along ents;
2. select arbitrary neighborhood three Along ents and place fixing magnetic absorbing seat, these three fixing magnetic absorbing seats just form a reference plane, and a mobile magnetic absorbing seat is transfer point, and remaining five Along ents move; Steel wire one is fastened, tension by be separated by two fixing magnetic absorbing seats; The fixing magnetic absorbing seat in centre position also fastens one end of steel wire two, and the other end of steel wire two is through mobile magnetic absorbing seat, and this end not tighten, according to mobile magnetic absorbing seat shift position on Along ent, regulates at any time, applies pulling force again steel wire two is tightened during measurement;
3. mobile magnetic absorbing seat is placed on one by one all the other five Along ent positions of eight equal parts point, measures the gap between two steel wire crossover sites with clearance gauge, make a record respectively;
4. according to the corresponding ratio of similar triangles, calculate all the other 5 distances between position and reference field, if these five numerical value are all no more than Planeness value, it is qualified namely to judge by inspection workpiece; If more than one numerical value exceedes Planeness value, namely judge that by inspection workpiece be defective.
The invention has the beneficial effects as follows: this kind of method measuring flatness, first determine reference field, the position choosing representative matter again compares with reference field one by one, methodological science, accurately, there is not flexural deformation in the steel wire of stressed tension simultaneously, structure is simple, easy to carry, reliable measuring data, cost is low, easy to utilize.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention schematic diagram;
Fig. 2 is embodiment of the present invention magnetic absorbing seat structural representation;
In figure: mobile magnetic absorbing seat 1, by inspection workpiece 2, steel wire 1, fixing magnetic absorbing seat 4, magnet 5, draw ring 6, steel wire 27.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the invention will be further described.
A simple device for measurement plane degree, comprise three fixing magnetic absorbing seats, 4, mobile magnetic absorbing seat, 1, two steel wires, clearance gauge, three fixing magnetic absorbing seats 4 and a mobile magnetic absorbing seat 1 are all be made up of magnet 5 and draw ring 6, and magnet 5 is provided with draw ring 6 above; Three fixing magnetic absorbing seats 4 are highly consistent with the draw ring 6 of a mobile magnetic absorbing seat 1; Two steel wires are steel wire 1 and steel wire 27, steel wire 1 and steel wire 27 arranged crosswise, and the two ends of steel wire one are fastened respectively on the draw ring of two fixing magnetic absorbing seats, and the two ends of steel wire 27 are fastened respectively on the draw ring of another fixing magnetic absorbing seat and mobile magnetic absorbing seat; Clearance gauge is filled in the point of crossing of steel wire 1 and steel wire 27.
Described magnet 5 is circular platform type, and the upper surface central point of round platform is provided with draw ring 6.
The easy of measurement plane degree has a method, comprises following steps:
1. being placed in platform or plane by inspection workpiece 2, drawing an incircle by inspection workpiece tested surface, circumferentially marking eight Along ents;
2. select arbitrary neighborhood three Along ents and place fixing magnetic absorbing seat, these three fixing magnetic absorbing seats just form a reference plane, and a mobile magnetic absorbing seat is transfer point, and remaining five Along ents move; Steel wire 1 is fastened, tension by be separated by two fixing magnetic absorbing seats; The fixing magnetic absorbing seat in centre position also fastens one end of steel wire 27, and the other end of steel wire 27 is through mobile magnetic absorbing seat, and this end not tighten, according to mobile magnetic absorbing seat shift position on Along ent, regulates at any time, applies pulling force again steel wire two is tightened during measurement;
3. mobile magnetic absorbing seat is placed on one by one all the other five Along ent positions of eight equal parts point, measures the gap between two steel wire crossover sites with clearance gauge, make a record respectively;
4. according to the corresponding ratio of similar triangles, calculate all the other 5 distances between position and reference field, if the numerical value of these five points is all no more than Planeness value, namely judge by the 2-in-1 lattice of inspection workpiece; If more than one numerical value exceedes Planeness value, namely judge that by inspection workpiece be defective.
Three fixing magnetic absorbing seats 4 and a mobile magnetic absorbing seat 1 are all be made up of magnet 5 and draw ring 6, and magnet 5 is provided with draw ring 6 above; Three fixing magnetic absorbing seats 4 are highly consistent with the draw ring 6 of a mobile magnetic absorbing seat 1; Two steel wires are steel wire 1 and steel wire 27, steel wire 1 and steel wire 27 arranged crosswise, and the two ends of steel wire one are fastened respectively on the draw ring of two fixing magnetic absorbing seats, and the two ends of steel wire 27 are fastened respectively on the draw ring of another fixing magnetic absorbing seat and mobile magnetic absorbing seat.
With reference to accompanying drawing 1,2, embodiment more specifically:
1. will be placed in platform or plane by inspection workpiece 2, circumferentially mark eight equal parts point: A, B, C, D, E, F, G, H;
2. select adjacent three Along ents A, B, H, place fixing magnetic absorbing seat respectively, three fixing magnetic absorbing seats just form a reference plane ABH.On the fixing magnetic absorbing seat of B, H two positions, fasten steel wire 1, draw a steel wire 27 by between the fixing magnetic absorbing seat on A position and mobile magnetic absorbing seat 1, wherein move the steel wire two not tighten on magnetic absorbing seat 1, according to the position of mobile magnetic absorbing seat 1, adjusting tightness at any time;
3. mobile magnetic absorbing seat 1 is placed on D point, with the gap h between clearance gauge measuring steel wire one and steel wire two crossover sites, according to the corresponding sides scale factor a of similar triangles, calculates the distance ah between D point position and reference field ABH;
4. by same method of operating, mobile magnetic absorbing seat 1 is placed on C, E, F, G 4 positions one by one, converses the distance between each point reference field respectively; The scale factor of each Along ent is chosen by table one;
Table one scale factor chooses the table of comparisons
If 5. the numerical value of these five points is all no more than Planeness value, namely judge by the 2-in-1 lattice of inspection workpiece; If more than one numerical value exceedes Planeness value, namely judge that by inspection workpiece be defective.
Claims (4)
1. the simple device of a measurement plane degree, it is characterized in that: comprise three fixing magnetic absorbing seats (4), mobile magnetic absorbing seat (1), two steel wires, clearance gauge, three fixing magnetic absorbing seats (4) and a mobile magnetic absorbing seat (1) are all be made up of magnet (5) and draw ring (6), and magnet (5) is provided with draw ring (6) above; Three fixing magnetic absorbing seats (4) are highly consistent with the draw ring (6) of a mobile magnetic absorbing seat (1); Two steel wires are steel wire one (3) and steel wire two (7), steel wire one (3) and steel wire two (7) arranged crosswise, the two ends of steel wire one are fastened respectively on the draw ring of two fixing magnetic absorbing seats, and the two ends of steel wire two (7) are fastened respectively on the draw ring of another fixing magnetic absorbing seat and mobile magnetic absorbing seat; Clearance gauge is filled in the point of crossing of steel wire one (3) and steel wire two (7).
2. the simple device of a kind of measurement plane degree according to claim 1, is characterized in that: described magnet (5) is circular platform type, the upper surface central point of round platform is provided with draw ring (6).
3. a short-cut method for measurement plane degree, is characterized in that comprising following steps:
1. being placed in platform or plane by inspection workpiece (2), drawing an incircle by inspection workpiece tested surface, circumferentially marking eight Along ents;
2. select arbitrary neighborhood three Along ents and place fixing magnetic absorbing seat, these three fixing magnetic absorbing seats just form a reference plane, and a mobile magnetic absorbing seat is transfer point, and remaining five Along ents move; Steel wire one (3) is fastened, tension by be separated by two fixing magnetic absorbing seats; The fixing magnetic absorbing seat in centre position also fastens one end of steel wire two (7), the other end of steel wire two (7) is through mobile magnetic absorbing seat, and this end not tighten, according to mobile magnetic absorbing seat shift position on Along ent, regulate at any time, apply pulling force during measurement again and steel wire two is tightened;
3. mobile magnetic absorbing seat is placed on one by one all the other five Along ent positions of eight equal parts point, measures the gap between two steel wire crossover sites with clearance gauge, make a record respectively;
4. according to the corresponding ratio of similar triangles, calculate all the other 5 distances between position and reference field, if the numerical value of these five points is all no more than Planeness value, it is qualified namely to judge by inspection workpiece (2); If more than one numerical value exceedes Planeness value, namely judge that by inspection workpiece be defective.
4. the short-cut method of a kind of measurement plane degree according to claim 3, is characterized in that: three fixing magnetic absorbing seats (4) and a mobile magnetic absorbing seat (1) are all be made up of magnet (5) and draw ring (6), and magnet (5) is provided with draw ring (6) above; Three fixing magnetic absorbing seats (4) are highly consistent with the draw ring (6) of a mobile magnetic absorbing seat (1); Two steel wires are steel wire one (3) and steel wire two (7), steel wire one (3) and steel wire two (7) arranged crosswise, the two ends of steel wire one are fastened respectively on the draw ring of two fixing magnetic absorbing seats, and the two ends of steel wire two (7) are fastened respectively on the draw ring of another fixing magnetic absorbing seat and mobile magnetic absorbing seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511002212.4A CN105444657B (en) | 2015-12-29 | 2015-12-29 | A kind of short-cut method and device of measurement plane degree |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511002212.4A CN105444657B (en) | 2015-12-29 | 2015-12-29 | A kind of short-cut method and device of measurement plane degree |
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| Publication Number | Publication Date |
|---|---|
| CN105444657A true CN105444657A (en) | 2016-03-30 |
| CN105444657B CN105444657B (en) | 2017-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201511002212.4A Active CN105444657B (en) | 2015-12-29 | 2015-12-29 | A kind of short-cut method and device of measurement plane degree |
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| CN (1) | CN105444657B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112880612A (en) * | 2021-01-13 | 2021-06-01 | 青岛高测科技股份有限公司 | Evaluation method for machining precision of squaring machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3762053A (en) * | 1971-02-11 | 1973-10-02 | Spitfire Tool & Machine Co Inc | Device for testing the flatness of the surface of a lapping plate of a lapping machine |
| JPH11173803A (en) * | 1997-12-15 | 1999-07-02 | Yamau Co Ltd | Strain gauge |
| CN2704023Y (en) * | 2004-06-02 | 2005-06-08 | 昆山市三一重机有限公司 | Soldering structural member planeness check tool |
| CN201897458U (en) * | 2010-12-03 | 2011-07-13 | 奇瑞汽车股份有限公司 | Gap flatness measuring auxiliary tool |
| CN102252637A (en) * | 2011-04-26 | 2011-11-23 | 蓬莱巨涛海洋工程重工有限公司 | Method for detecting flatness of large-scale flange |
| CN205228366U (en) * | 2015-12-29 | 2016-05-11 | 保定天威电气设备结构有限公司 | Device for measuring flatness |
-
2015
- 2015-12-29 CN CN201511002212.4A patent/CN105444657B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3762053A (en) * | 1971-02-11 | 1973-10-02 | Spitfire Tool & Machine Co Inc | Device for testing the flatness of the surface of a lapping plate of a lapping machine |
| JPH11173803A (en) * | 1997-12-15 | 1999-07-02 | Yamau Co Ltd | Strain gauge |
| CN2704023Y (en) * | 2004-06-02 | 2005-06-08 | 昆山市三一重机有限公司 | Soldering structural member planeness check tool |
| CN201897458U (en) * | 2010-12-03 | 2011-07-13 | 奇瑞汽车股份有限公司 | Gap flatness measuring auxiliary tool |
| CN102252637A (en) * | 2011-04-26 | 2011-11-23 | 蓬莱巨涛海洋工程重工有限公司 | Method for detecting flatness of large-scale flange |
| CN205228366U (en) * | 2015-12-29 | 2016-05-11 | 保定天威电气设备结构有限公司 | Device for measuring flatness |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112880612A (en) * | 2021-01-13 | 2021-06-01 | 青岛高测科技股份有限公司 | Evaluation method for machining precision of squaring machine |
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| CN105444657B (en) | 2017-12-22 |
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Effective date of registration: 20191030 Address after: 071056 No. 2222 Print-Rite West Road, Hebei, Baoding Patentee after: Baoding Tianwei Baobian Electric Co., Ltd. Address before: 071056, No. 2222 Print-Rite West Road, Xinshi District, Hebei, Baoding Patentee before: Baoding Tianwei Electrical Equipment Structure Co.,Ltd. |
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| TR01 | Transfer of patent right |