CN104713440A - Quantitative measurement caliper gauge - Google Patents

Quantitative measurement caliper gauge Download PDF

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Publication number
CN104713440A
CN104713440A CN201510105399.4A CN201510105399A CN104713440A CN 104713440 A CN104713440 A CN 104713440A CN 201510105399 A CN201510105399 A CN 201510105399A CN 104713440 A CN104713440 A CN 104713440A
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CN
China
Prior art keywords
test arm
web
measuring
spring
elasticity test
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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.)
Pending
Application number
CN201510105399.4A
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Chinese (zh)
Inventor
杨明亮
吴秀娥
黄汉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hanzhong Mikelong Measuring Instruments And Gauge Industrial Co ltd
Original Assignee
Hanzhong Mikelong Measuring Instruments And Gauge Industrial Co ltd
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Hanzhong Mikelong Measuring Instruments And Gauge Industrial Co ltd filed Critical Hanzhong Mikelong Measuring Instruments And Gauge Industrial Co ltd
Priority to CN201510105399.4A priority Critical patent/CN104713440A/en
Publication of CN104713440A publication Critical patent/CN104713440A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a quantitative measurement caliper gauge and belongs to measuring instruments. The quantitative measurement caliper gauge is used for measuring the diameters of high-precision shaft type workpieces in the production process in a workshop. The quantitative measurement caliper gauge comprises a dial indicator, a caliper gauge body and a zero calibration device. The caliper gauge body is composed of a web plate, a fixed measuring arm, an elastic measuring arm, a dial indicator fixing frame, a spring and a handle. The zero calibration device is composed of a measurement zero calibration gauge and a measurement zero calibration gauge base. The two edges, in the length direction, of the web plate are parallel. The fixed measuring arm is installed on one edge, in the length direction, of the web plate, the elastic measuring arm and the dial indicator fixing frame are installed on the other edge, in the length direction, of the web plate. A traditional integrated type caliper gauge structure is changed into a separable combination type caliper gauge structure. The quantitative measurement caliper gauge meets the Abbe principle, the measuring force is controlled, the number of links generating errors is reduced, and the measuring precision is improved. The actual sizes of the workpieces can be accurately measured. The quantitative measurement caliper gauge can be used for measurement in the machining process.

Description

A kind of quantitative measurment calliper
Technical field
Patent of the present invention belongs to surveying instrument, is specifically related to the calliper measuring high precision shaft-like workpiece diameter dimension in a kind of process of factory production.
Background technology
In factory's volume manufacturing process, only process high-precision mechanical component, just may produce high-quality equipment.High-precision part size is the basic demand of high-precision part.In traditional manufacture, high-precision excircle dimension be generally grinding out, the size of part has a tolerance range, after machining, then with calliper check processing dimension whether qualified.Plain calliper gauge measure portion has a go side, has a not-go-end, when checking workpiece, as long as go side can cross and not-go-end can not to cross be just specification product.The weak point of this calliper is: 1) can only check that whether part is in margin tolerance, can not detect physical size, belong to qualitative detection.If the processing dimension of part, near tolerance intermediate value and near two dimension limits of tolerance, although be all qualified, still has a certain impact to the performance of equipment; 2) once detect defective, can only reprocess or scrap, waste larger; 3) do not meet the development trend of Quality Control Links reach in modern manufacturing industry.
For many years, also there are some quantitative measurment callipers, calliper was combined with clock gauge, the physical size of axle can be measured.As patent " Portable type dial snap gauge " (patent No. CN201748878U); The paper " crankshaft journal size measured by self-control dial snap gauge " also having " measurement technology " to deliver at calendar year 2001 No4, also describes a kind of dial snap gauge can measuring physical size.These dial snap gauges, serve facilitation to China's manufacturing industry development quantitative measurment calliper.But due to reasons such as structures, also there is complex structure, measuring accuracy is not high the problem such as causes delaying promoting on a large scale.
Summary of the invention
Quantitative measurment calliper of the present invention, the problems such as solving dial snap gauge complex structure, measuring principle is unreasonable, and measuring accuracy is not high.
The technical scheme that patent of invention adopts comprises clock gauge, calliper body and Zero calibration apparatus; Calliper body is by web, and fixing test arm, elasticity test arm, micrometer fixing rack, spring and handle form.Web is a rectangular slab, and the length dimension of web equals the mean value of part maximum allowance size to be measured and minimal tolerance size, and length direction two limits are parallel to each other; Fixing test arm is screwed and is connected on limit, one, web length direction, and stretches out in measuring workpieces direction, and extension elongation is greater than measured workpiece radius; Elasticity test arm and micrometer fixing rack are screwed and are connected on another limit, web length direction, and elasticity test arm is close to web, and elasticity test arm and micrometer fixing rack stretch out in measuring workpieces direction, and extension elongation is greater than measured workpiece radius.
During in order to ensure to measure, the deformation space of elasticity test arm, divides on the limit adjacent with elasticity test arm at micrometer fixing rack cantilevered extension and is processed with groove, make to leave gap between elasticity test arm and micrometer fixing rack.
Have clock gauge mounting hole at micrometer fixing rack external part, position equals measured workpiece radius in elasticity test arm extension distance, and it is vertical that axis and the fixing test arm in hole contact workpiece face; The end of clock gauge is installed by slotted for mounting hole cutting k at micrometer fixing rack, with slit k upright position, slit is processed with holes for clamping, and another side has screw thread; Also can both sides be all holes for clamping; With screw, clock gauge is clamped.
Micrometer fixing rack also has spring mounting hole, near the position of clock gauge mounting hole between clock gauge mounting hole and web, spring fitting pitch-row elasticity test arm one end far away is processed with internal thread, spring one end is pressed on elasticity test arm, the other end has central spindle of the spring screw, central spindle of the spring screw screws in spring eye internal thread, provides suitable ergometry.
During measurement, workpiece contacts with web b place at fixing test arm a place, elasticity test arm c place respectively, ensures the tram of workpiece when measuring.
Zero calibration apparatus is advised and is measured school zero and advise base by measuring school zero and form.Measuring school zero rule is right cylinders, diameter of a circle is measured workpiece lower variation of tolerance diameter, and it is a rectangular slab that base is advised in school zero, and thickness direction face of plate is processed with rectangular channel, measurement school zero rule are placed on rectangular channel, with screw, measurement school zero rule are connected to school zero and advise on base.
Handle is arranged on web.
The present invention has following characteristics:
1. clock gauge is positioned on the line of measured workpiece two contact point, meets abbe ' s principle, decreases measuring principle error;
2. have employed special elasticity test arm and spring, the less and ergometry good stability of ergometry, not only decreases the wearing and tearing of test arm contact position, and decreases the distortion of other parts, decreases the measuring error because other parts distortion produces;
3. the lengthwise dimension of web is the nominal size of measured workpiece, elasticity test arm produces microdeformation to place work piece direction under spring force, during measuring workpieces, elasticity test arm contacts workpiece two surfaces with fixing test arm are in parastate substantially, decrease the measuring error of test arm contact workpiece amount workplace due to not parallel generation;
4. avoid point cantact when some dial snap gauge is measured, not easily record the problem of diameter of work;
5. clock gauge fixed form have employed subdivision structure, and centering is good, fixing reliable, can not produce local clamping and table bar is moved inflexible phenomenon;
6. structure is simple, is easy to manufacture;
7. easy to use, quality control can be advanced to the grinding link of axle, grinding machine is measured workpiece, actual processing dimension can be obtained, be convenient to quality control, reduce waste product, raise the efficiency;
8. measuring accuracy is high.
Accompanying drawing explanation
In accompanying drawing, Fig. 1 is quantitative measurment calliper structural front view in patent Example of the present invention; Fig. 2 is the vertical view of quantitative measurment calliper; Fig. 3 is A-A cross sectional view.
In figure: 1. fixing test arm 2. screw 1 3. screw 2 4. handle 5. web 6. micrometer fixing rack 7. elasticity test arm 8. spring 9. central spindle of the spring screw 10. clock gauge 11. is measured school zero and advised 12. schools zero and advise base 13. screw 3
Embodiment
Below in conjunction with accompanying drawing, the structure of patent of the present invention and the course of work are described in further detail.
Embodiment 1: see Figure of description 1, accompanying drawing 2 and accompanying drawing 3, quantitative measurment calliper of the present invention comprises web 5, fixing test arm 1, elasticity test arm 7, clock gauge 10, micrometer fixing rack 6, spring 8, handle 4, measure school zero advise 11 and school zero advise base 12.Web is a rectangular slab, and the length dimension of web equals the mean value of part maximum allowance size to be measured and minimal tolerance size, and length direction two limits of web are parallel to each other; Fixing test arm is a rectangular block, there is the hole be connected with web above, be screwed and be connected on limit, one, web length direction, a face of test arm will contact with measured workpiece when measuring, contact point is a, therefore fix test arm and workpiece-contacting tip wants cantilever to stretch out, extension elongation is a bit larger tham measured workpiece radius; Elasticity test arm 7 and micrometer fixing rack 6 are screwed and are connected on another limit, web length direction, and elasticity test arm will with measured workpiece at c point cantact when measuring, and therefore elasticity test arm is close to web, and outside is micrometer fixing rack.The same with fixing test arm, elasticity test arm and micrometer fixing rack also will stretch out at measuring workpieces direction cantilever, extension elongation and elasticity test arm extension elongation roughly equal.
In order to when ensureing to measure, elasticity test arm outwards has deformation space, divide at micrometer fixing rack cantilevered extension and be processed with groove, this slot is between micrometer fixing rack and elasticity test arm.
Micrometer fixing rack has the mounting hole of clock gauge, position equals measured workpiece radius in elasticity test arm extension length, it is vertical that axis and the fixing test arm in hole contact workpiece face, and clock gauge mounting hole is on 2 a, b lines of absorption surface, and clock gauge measuring staff axis is by this line; In order to clamp clock gauge, at the jagged k of micrometer fixing rack end cutting, breach is communicated with clock gauge mounting hole, has hole and the screw thread of clamping, clamped by clock gauge with screw 3 in indentation, there.This clamping means clock gauge supporting rod uniform force, clamping is reliable.
In order to provide suitable ergometry, on micrometer fixing rack, adjacent clock gauge mounting hole place is processed with spring mounting hole, spring is placed in hole, one end is pressed on elasticity test arm, the other end is fixed by central spindle of the spring 9, and central spindle of the spring not only plays the guide effect of spring, also plays the effect regulating ergometry simultaneously.
Zero calibration apparatus is for calibration calliper before measuring and determine clock gauge zero point, by measurement school zero advise 11 and school zero advise base 12 and form.It is right cylinders that measurement school zero advises 11, diameter of a circle is measured workpiece lower variation of tolerance diameter dimension, it is rectangular slabs that base 12 is advised in school zero, rectangular channel is processed with in the middle of thickness direction face of plate, advise in measurement school zero and added threaded hole, measurement school zero rule are placed on rectangular channel, with screw 3, measurement school zero rule are connected to school zero and advise on base.
The course of work: the course of work comprises school zero-sum and measures two steps.
During school zero, lain in a horizontal plane in by Zero calibration apparatus on a stable work top, Zero calibration apparatus must not rock; Unclamp clock gauge gib screw, calliper being vertically inserted into measurement school zero advises on 11, make the exterior surface that on fixing test arm, on a place, web, on b place, elasticity test arm, c place advises with measurement school zero, stable firmly calliper, then clock gauge is moved gently, clock gauge gauge head is contacted with elasticity test arm, and clock gauge pointer is positioned near the intermediate value of clock gauge measurement range, is then fixed by clock gauge with screw 2; Advising the physical size of processing according to measuring school zero, rotating clock gauge dial plate, ensureing that clock gauge pointer is when zero-bit, is just in time the lower limit of measured workpiece tolerance.
During measurement, calliper is inserted on measured workpiece, ensures that calliper steadily contacts with web b place at fixing test arm a place, elasticity test arm c place respectively with workpiece, after clock gauge pointer is stable, read clock gauge measured value; If this value is less than zero, show that workpiece has been less than the minimum value of part tolerance; If reading is greater than zero and be less than the tolerance value of part permission, show that this workpiece is qualified; If clock gauge measured value is greater than the tolerance value that part allows, this surface of the work also needs to continue grinding.
This quantitative measurment calliper may be used for the last inspection of part, also can use in process.Not only can examining workpieces whether qualified, accurately can also read work pieces process size, know the position of workpiece physical size in tolerance range.

Claims (5)

1. a quantitative measurment calliper, the technical scheme of employing comprises clock gauge, calliper body and Zero calibration apparatus; It is characterized in that: calliper body, by web, fixes test arm, elasticity test arm, micrometer fixing rack, spring and handle composition; Web is a rectangular slab, and the length dimension of web equals the mean value of part maximum allowance size to be measured and minimal tolerance size, and length direction two limits are parallel to each other; Fixing test arm is screwed and is connected on limit, one, web length direction, and stretches out in measuring workpieces direction, and extension elongation is greater than measured workpiece radius; Elasticity test arm and micrometer fixing rack are screwed and are connected on another limit, web length direction, and elasticity test arm is close to web, and elasticity test arm and micrometer fixing rack stretch out in measuring workpieces direction, and extension elongation is greater than measured workpiece radius.
2. a kind of quantitative measurment calliper according to claim 1, is characterized in that: micrometer fixing rack cantilevered extension divides on the limit adjacent with elasticity test arm and is processed with groove, makes to leave gap between elasticity test arm and micrometer fixing rack.
3. a kind of quantitative measurment calliper according to claim 1, it is characterized in that: have clock gauge mounting hole at micrometer fixing rack external part, position equals measured workpiece radius in elasticity test arm extension distance, and it is vertical that axis and the fixing test arm in hole contact workpiece face; The end of clock gauge is installed by slotted for mounting hole cutting k at micrometer fixing rack, with slit k upright position, slit is processed with holes for clamping, and another side has screw thread; Also can both sides be all holes for clamping; With screw, clock gauge is clamped.
4. a kind of quantitative measurment calliper according to claim 1, it is characterized in that: on micrometer fixing rack, also have spring mounting hole, near the position of clock gauge mounting hole between clock gauge mounting hole and web, spring fitting pitch-row elasticity test arm one end far away is processed with internal thread, spring one end is pressed on elasticity test arm, the other end has central spindle of the spring screw, and central spindle of the spring screw screws in spring eye internal thread.
5. a kind of quantitative measurment calliper according to claim 1, is characterized in that: Zero calibration apparatus is advised and measured school zero and advise base by measuring school zero and form; Measuring school zero rule is right cylinders, diameter of a circle is measured workpiece lower variation of tolerance diameter, and it is a rectangular slab that base is advised in school zero, and thickness direction face of plate is processed with rectangular channel, measurement school zero rule are placed on rectangular channel, with screw, measurement school zero rule are connected to school zero and advise on base.
CN201510105399.4A 2015-03-06 2015-03-06 Quantitative measurement caliper gauge Pending CN104713440A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105865305A (en) * 2016-05-31 2016-08-17 芜湖卓越空调零部件有限公司 Outer diameter caliper gauge for upper shell of liquid accumulator
CN110966906A (en) * 2019-12-24 2020-04-07 合肥美桥汽车传动及底盘系统有限公司 Quick detection tool for detecting shaft size
CN111023936A (en) * 2019-12-18 2020-04-17 眉山中车制动科技股份有限公司 Method for measuring critical dimension of performance of emergency valve

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2129131B (en) * 1982-10-27 1986-07-30 Massey Ferguson Perkins Ltd Caliper gauge
CN201955042U (en) * 2011-01-14 2011-08-31 开封畅丰车桥有限公司 External circle diameter measuring caliper gauge
CN103528460A (en) * 2013-10-25 2014-01-22 无锡富瑞德精密机械有限公司 Separated contact-type pneumatic caliper gauge
CN203981052U (en) * 2014-08-15 2014-12-03 钱志根 A kind of novel Quick Measuring axle band tabular form quantizes calliper
CN204007431U (en) * 2014-07-24 2014-12-10 湖南江滨机器(集团)有限责任公司 A kind of piston dovetail groove datum diameter is measured cubing
CN204421793U (en) * 2015-03-06 2015-06-24 汉中米克隆工量具实业有限公司 A kind of quantitative measurment calliper

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2129131B (en) * 1982-10-27 1986-07-30 Massey Ferguson Perkins Ltd Caliper gauge
CN201955042U (en) * 2011-01-14 2011-08-31 开封畅丰车桥有限公司 External circle diameter measuring caliper gauge
CN103528460A (en) * 2013-10-25 2014-01-22 无锡富瑞德精密机械有限公司 Separated contact-type pneumatic caliper gauge
CN204007431U (en) * 2014-07-24 2014-12-10 湖南江滨机器(集团)有限责任公司 A kind of piston dovetail groove datum diameter is measured cubing
CN203981052U (en) * 2014-08-15 2014-12-03 钱志根 A kind of novel Quick Measuring axle band tabular form quantizes calliper
CN204421793U (en) * 2015-03-06 2015-06-24 汉中米克隆工量具实业有限公司 A kind of quantitative measurment calliper

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105865305A (en) * 2016-05-31 2016-08-17 芜湖卓越空调零部件有限公司 Outer diameter caliper gauge for upper shell of liquid accumulator
CN111023936A (en) * 2019-12-18 2020-04-17 眉山中车制动科技股份有限公司 Method for measuring critical dimension of performance of emergency valve
CN110966906A (en) * 2019-12-24 2020-04-07 合肥美桥汽车传动及底盘系统有限公司 Quick detection tool for detecting shaft size

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Application publication date: 20150617