CN108303013B - Groove diameter coaxial measuring gauge with folding and expanding functions - Google Patents
Groove diameter coaxial measuring gauge with folding and expanding functions Download PDFInfo
- Publication number
- CN108303013B CN108303013B CN201810178679.1A CN201810178679A CN108303013B CN 108303013 B CN108303013 B CN 108303013B CN 201810178679 A CN201810178679 A CN 201810178679A CN 108303013 B CN108303013 B CN 108303013B
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- sleeve
- loop
- rod
- groove
- measuring
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 230000008961 swelling Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 7
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000001125 extrusion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Classifications
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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
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/25—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
- G01B5/252—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes for measuring eccentricity, i.e. lateral shift between two parallel axes
-
- 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
- G01B5/0025—Measuring of vehicle parts
-
- 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
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
- G01B5/12—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters internal diameters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a groove diameter coaxiality gauge with a folding and expanding function. The dial indicator comprises a dial indicator and is characterized by also comprising a measuring rod, wherein an upper sleeve and a lower sleeve are arranged on the measuring rod. The lower surface of the dial indicator is connected with a straight rod, and the lower end of the straight rod extends into the upper sleeve and is connected with a dial indicator measuring head. The upper sleeve is provided with a pin seat, the pin seat is hinged with a handle, and the inner end of the handle passes through the upper sleeve and is connected with the upper end of the measuring rod. A first spring is arranged between the lower end of the upper sleeve and the lower part of the section of measuring rod in the lower sleeve. The lower part of the lower sleeve is provided with an upper loop, a lower loop and a fixed sleeve, the lower end of the fixed sleeve is provided with a head screw, a second spring is arranged between the periphery of the upper sleeve and the lower sleeve, the adjacent ends of the upper loop, the lower loop and the fixed sleeve are conical ends, and a retainer and a steel ball are arranged between the adjacent conical ends. The fixed sleeve is provided with a radial through hole and a measuring head. The middle of the measuring head is provided with an avoidance groove, one side of the inner cavity of the avoidance groove and the lower end surface of the measuring rod are both provided with inclined surfaces, and the two are in sliding fit. The invention can reduce the production cost and improve the working efficiency. The method is suitable for coaxiality detection of round holes on two groove walls in the same long groove.
Description
Technical Field
The invention relates to a coaxiality measuring device. Specifically, the detection device is used for detecting the coaxiality of two coaxial round holes on the same workpiece. The method is particularly suitable for coaxiality detection of coaxial round holes on two groove walls in the same long groove.
Background
At present, a method for measuring coaxiality of two coaxial round holes in the same long groove is a traditional method, and the traditional method is a three-coordinate method, so that a three-coordinate instrument is needed to be adopted. And the three-coordinate instrument is high in price, so that the production cost is high. And because a three-coordinate method is adopted, a plurality of points are needed to be taken around the round hole, and the center of the round hole can be obtained through calculation, the working efficiency is low.
Disclosure of Invention
The invention aims to solve the problem of providing a groove diameter coaxiality gauge with a folding and expanding function. The groove diameter coaxiality gauge with the folding and expanding functions is used for measuring coaxiality of two coaxial round holes on the same workpiece, so that production cost can be reduced, and working efficiency can be improved.
The above problems to be solved by the present invention are realized by the following technical solutions:
the coaxial measuring gauge with the groove diameter with the expanding and contracting function comprises a dial indicator and is characterized by further comprising a measuring rod, wherein an upper sleeve and a lower sleeve are respectively sleeved on the upper section and the middle section of the measuring rod, and the upper sleeve and the lower sleeve are connected together. The dial indicator is round, the center of the lower surface of the dial indicator is connected with a straight rod, and the lower end of the straight rod extends into the upper sleeve and is connected with a dial indicator measuring head. The outer wall of the upper sleeve is provided with a pin seat, the pin seat comprises two pin lugs, and a handle is arranged between the two pin lugs. The upper sleeve between the two pin lugs is provided with a vertical flat hole, and the inner end of the handle is movably connected with the upper end of the measuring rod after passing through the vertical flat hole. The inner circle of the lower end of the upper sleeve is provided with a radial inner boss, the lower part of the section of measuring rod positioned in the lower sleeve is provided with a radial outer boss, and a first spring is arranged between the radial inner boss and the radial outer boss. An upper loop, a lower loop and a fixed loop are sequentially arranged below the lower loop, the lower end of the fixed loop is provided with a head screw, a second spring is arranged between the periphery of the upper loop and the periphery of the lower loop, the adjacent ends of the upper loop and the lower loop, the adjacent ends of the lower loop and the fixed loop are all processed into conical ends, and a retainer and a steel ball are arranged between the conical ends of the adjacent ends of the upper loop and the lower loop and between the conical ends of the adjacent ends of the lower loop and the fixed loop. The fixing sleeve on the end socket screw is provided with a radial through hole, and the inside of the radial through hole is provided with a measuring head. The measuring head is rod-shaped, an avoidance groove is formed in the middle of the measuring head, and a 45-degree inclined plane is formed on one side of an inner cavity of the avoidance groove; the lower end face of the measuring rod is a 45-degree face, and the 45-degree face is in sliding fit with a 45-degree inclined plane in the avoidance groove.
According to a further improvement scheme, a pin hole is formed in the side wall of the lower loop, and a vertical flat groove is formed in a measuring rod corresponding to the pin hole. The limiting pin is arranged in the pin hole, the inner end of the limiting pin stretches into the vertical flat groove, and the limiting pin and the vertical flat groove are in sliding fit.
The invention further adopts the improvement that the lower end of the upper sleeve and the upper end of the lower sleeve are respectively provided with a flange, through holes and screw holes which are mutually corresponding are respectively arranged between the periphery of the flanges at the lower end of the upper sleeve and the upper end of the lower sleeve, and the lower end of the upper sleeve and the upper end of the lower sleeve are connected together by the flanges and screws.
The invention further adopts the improvement that the lower end of the lower sleeve is provided with a flange, blind holes corresponding to each other are arranged on the periphery of the lower surface of the flange and the periphery of the upper end of the upper loop, and the second springs are arranged in the blind holes corresponding to the lower end of the flange and the upper end of the upper loop.
The invention further adopts the improvement that the flange at the lower end of the lower sleeve is connected with a flange plate, blind holes corresponding to each other are arranged on the periphery of the lower surface of the flange plate and the periphery of the upper end of the upper loop, and the second springs are arranged in the blind holes corresponding to the flange plate and the upper end of the upper loop.
According to a further improvement scheme of the invention, the handle is an L-shaped rod which is reversely arranged in an inverted mode, the hinge point of the handle and the pin seat is positioned at the root of the transverse part of the L-shaped rod, the end part of the transverse part of the handle penetrates through the vertical flat hole and then is connected to the upper end of the measuring rod, and the vertical part of the handle faces downwards.
According to a further improvement scheme, a limiting table is arranged at the connecting end of the upper sleeve and the lower sleeve, which correspond to the vertical part of the L-shaped rod.
According to the scheme, when the measuring head is detected, the handle is pressed down, so that the tensioning mechanism consisting of the fixed sleeve, the lower loop and the upper loop stretches into the round hole of the workpiece, the measuring head can shrink inwards under the extrusion of the side wall of the round hole to be detected, and meanwhile, the measuring rod is pushed to move upwards, and the first spring is compressed. When the fixed sleeve, the lower loop and the upper loop are completely inserted into the round hole of the workpiece, the handle is shifted outwards, and then the measuring rod is pushed by the first spring to move downwards, so that the measuring head moves outwards and is close to the inner wall of the round hole to be measured. At this time, the invention rotates around the measured round hole for a circle, and the coaxiality or the aperture of the measured round hole can be obtained by observing the variation on the dial indicator. Compared with the prior art, the coaxiality and the aperture of two coaxial round holes on the same workpiece can be measured without a three-coordinate instrument. Thereby reducing equipment investment and production cost. And because a three-coordinate instrument is not needed, coaxiality and aperture measurement of two coaxial round holes on the same workpiece can be realized by calculation without taking a plurality of points around the round holes, and the working efficiency is greatly improved.
Drawings
FIG. 1 is a schematic diagram of a groove diameter coaxial gauge structure with a swelling and collapsing function;
FIG. 2 is a schematic cross-sectional view A-A of FIG. 1.
Detailed Description
As shown in fig. 1 and 2, the groove diameter coaxial gauge with the swelling function comprises a dial indicator 12 and a measuring rod 5, wherein an upper sleeve 10 and a lower sleeve 7 are respectively sleeved on the upper section and the middle section of the measuring rod 5, flanges 8 are respectively processed at the lower end of the upper sleeve 10 and the upper end of the lower sleeve 7, through holes and screw holes which are mutually corresponding are respectively processed between the lower end of the upper sleeve 10 and the periphery of the flange 8 at the upper end of the lower sleeve 7, and the lower end of the upper sleeve 10 and the upper end of the lower sleeve 7 are connected together by means of the flanges 8 and screws 9. The dial indicator 12 is round, the center of the lower surface of the dial indicator is connected with a straight rod 11, and the lower end of the straight rod 11 stretches into the upper sleeve 10 and is connected with a dial indicator measuring head 13. A pin seat is fixed on the outer wall of the upper sleeve 10, the pin seat comprises two pin lugs 15, a handle 16 is arranged between the two pin lugs 15, and the part of the transverse part of the handle 16 adjacent to the root part is hinged between the two pin lugs 15 by virtue of a pin 14. The upper sleeve 10 between the two pin lugs 15 is provided with a vertical flat hole, and the inner end of the handle 16 is movably connected with the upper end of the measuring rod 5 after passing through the vertical flat hole. The inner circle at the lower end of the upper sleeve 10 is provided with a radial inner boss 18, the lower part of the section of measuring rod 5 positioned in the lower sleeve 7 is provided with a radial outer boss 6, and the measuring rod 5 between the radial inner boss 18 and the radial outer boss 6 is sleeved with a first spring 19. An upper loop 4, a lower loop 3 and a fixed loop 1 are sequentially arranged below the lower loop 7, and a seal head screw 26 is screwed at the lower end of the fixed loop 1. Second springs 20 are uniformly distributed between the periphery of the upper loop 4 and the periphery of the lower loop 7. In order to facilitate the positioning of the second spring 20, a flange plate 21 is connected to the flange at the lower end of the lower sleeve 7 by means of screws, blind holes corresponding to each other are formed in the periphery of the lower surface of the flange plate 21 and the periphery of the upper end of the upper loop 4, and two ends of the second spring 20 are respectively and correspondingly arranged in the blind holes corresponding to the upper ends of the flange plate 21 and the upper loop 7.
The adjacent ends of the upper loop 4 and the lower loop 3, the adjacent ends of the lower loop 3 and the fixed loop 1 are processed into conical ends, and a retainer 22 and a steel ball 23 are arranged between the conical ends of the adjacent ends of the upper loop 4 and the lower loop 3 and between the conical ends of the adjacent ends of the lower loop 3 and the fixed loop 1. The fixed sleeve 1 above the seal head screw 26 is provided with a radial through hole, and the inside of the radial through hole is provided with a measuring head 2. The end socket block 24 is installed to radial through-hole's one end, gauge head 2 is the shaft-like, and its inner end is through third spring 25 with end socket block 24 offsets. An avoidance groove is formed in the middle of the longitudinal direction of the measuring head 2, and the groove wall of one longitudinal side of the avoidance groove is processed into a 45-degree inclined plane. The lower end face of the measuring rod 5 is also processed into a 45-degree inclined plane, and the 45-degree inclined plane is in sliding fit with the 45-degree inclined plane in the avoidance groove. The outer end of the measuring head 2 protrudes out of the lower loop 3 in a non-detection state.
The side wall of the lower loop 3 is provided with a pin hole, a limiting pin 27 is arranged in the pin hole, and the limiting pin 27 is in sliding fit with the pin hole.
The measuring rod 5 corresponding to the pin hole and the limiting pin 27 is provided with a vertical flat groove 28. The inner end of the limiting pin 27 extends into the vertical flat groove 28 and is in sliding fit with the vertical flat groove.
In order to facilitate the hand holding of the handle 16, the handle 16 is an L-shaped rod which is reversely arranged in an inverted mode, the hinge point of the L-shaped rod and the pin seat is positioned at the root of the transverse part of the L-shaped rod, the end part of the transverse part of the L-shaped rod penetrates through the vertical flat hole and then is connected to the upper end of the measuring rod 5, and the vertical part of the L-shaped rod faces downwards.
In order to limit the handle 16, a limit table 17 is fixed on the connecting end of the upper sleeve 10 and the lower sleeve 7 corresponding to the vertical part of the L-shaped rod.
During detection, the handle 16 is pressed down first, so that the tensioning mechanism consisting of the fixed sleeve 1, the lower loop 3 and the upper loop 4 stretches into the round hole of the workpiece, the measuring head 2 can shrink inwards under the extrusion of the side wall of the round hole to be detected, and meanwhile, the measuring rod 5 is pushed to move upwards, and the first spring 19 is compressed. After the fixed sleeve 1, the lower loop 3 and the upper loop 4 are completely inserted into the round hole of the workpiece 29, the handle 16 is shifted outwards, and the measuring rod 5 is pushed by the first spring 19 to move downwards, so that the measuring head 2 moves outwards and is abutted against the inner wall of the round hole to be measured. At this time, the invention is made to rotate around the measured round hole for one circle, and the coaxiality or aperture of the measured round hole can be obtained by observing the variation on the dial indicator 12.
Claims (5)
1. The groove diameter coaxiality gauge with the swelling and collapsing function comprises a dial indicator and is characterized by further comprising a measuring rod, wherein an upper sleeve and a lower sleeve are respectively sleeved on the upper section and the middle section of the measuring rod, and the upper sleeve and the lower sleeve are connected together; the dial indicator is round, the center of the lower surface of the dial indicator is connected with a straight rod, and the lower end of the straight rod extends into the upper sleeve and is connected with a dial indicator measuring head; the outer wall of the upper sleeve is provided with a pin seat, the pin seat comprises two pin lugs, and a handle is arranged between the two pin lugs; the upper sleeve between the two pin lugs is provided with a vertical flat hole, and the inner end of the handle is movably connected with the upper end of the measuring rod after passing through the vertical flat hole; the inner circle at the lower end of the upper sleeve is provided with a radial inner boss, the lower part of the section of measuring rod positioned in the lower sleeve is provided with a radial outer boss, and a first spring is arranged between the radial inner boss and the radial outer boss; an upper loop, a lower loop and a fixed loop are sequentially arranged below the lower loop, the lower end of the fixed loop is provided with a head screw, a second spring is arranged between the periphery of the upper loop and the periphery of the lower loop, the adjacent ends of the upper loop and the lower loop, the adjacent ends of the lower loop and the fixed loop are all processed into conical ends, and a retainer and a steel ball are arranged between the conical ends of the adjacent ends of the upper loop and the lower loop and between the conical ends of the adjacent ends of the lower loop and the fixed loop; a radial through hole is formed in the fixing sleeve above the seal head screw, and a measuring head is arranged in the radial through hole; the measuring head is rod-shaped, an avoidance groove is formed in the middle of the measuring head, and a 45-degree inclined plane is formed on one side of an inner cavity of the avoidance groove; the lower end face of the measuring rod is a 45-degree face, and the 45-degree face is in sliding fit with a 45-degree inclined plane in the avoidance groove; the side wall of the lower loop is provided with a pin hole, and a measuring rod corresponding to the pin hole is provided with a vertical flat groove; a limiting pin is arranged in the pin hole, and the inner end of the limiting pin stretches into the vertical flat groove and is in sliding fit with the vertical flat groove; the flange is arranged at the lower end of the upper sleeve and the upper end of the lower sleeve, through holes and screw holes which correspond to each other are respectively arranged around the flange at the lower end of the upper sleeve and the flange at the upper end of the lower sleeve, and the lower end of the upper sleeve and the upper end of the lower sleeve are connected together by means of the flange and screws.
2. The groove diameter coaxiality gauge with the expanding and collapsing function according to claim 1, wherein the flange is arranged at the lower end of the lower sleeve, blind holes corresponding to each other are arranged on the periphery of the lower surface of the flange and the periphery of the upper end of the upper loop, and the second springs are arranged in the blind holes corresponding to the lower end of the flange and the upper end of the upper loop.
3. The groove diameter coaxiality gauge with the swelling and collapsing function according to claim 1, wherein a flange at the lower end of the lower sleeve is connected with a flange plate, blind holes corresponding to each other are formed in the periphery of the lower surface of the flange plate and the periphery of the upper end of the upper loop, and the second springs are arranged in the blind holes corresponding to the flange plate and the upper end of the upper loop.
4. The groove diameter coaxiality gauge with the swelling and collapsing function according to any one of claims 1-3, wherein the handle is an L-shaped rod, the L-shaped rod is reversely arranged in an inverted mode, the hinge point of the L-shaped rod and the pin seat is positioned at the root part of the transverse part of the L-shaped rod, the end part of the transverse part of the L-shaped rod penetrates through the vertical flat hole and is connected to the upper end of the measuring rod, and the vertical part of the L-shaped rod faces downwards.
5. The gauge for coaxiality of a groove diameter with a collapsing function according to claim 4, wherein a limiting table is arranged at the connecting end of the upper sleeve and the lower sleeve corresponding to the vertical part of the L-shaped rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810178679.1A CN108303013B (en) | 2018-03-07 | 2018-03-07 | Groove diameter coaxial measuring gauge with folding and expanding functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810178679.1A CN108303013B (en) | 2018-03-07 | 2018-03-07 | Groove diameter coaxial measuring gauge with folding and expanding functions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108303013A CN108303013A (en) | 2018-07-20 |
| CN108303013B true CN108303013B (en) | 2024-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810178679.1A Active CN108303013B (en) | 2018-03-07 | 2018-03-07 | Groove diameter coaxial measuring gauge with folding and expanding functions |
Country Status (1)
| Country | Link |
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| CN (1) | CN108303013B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109708560A (en) * | 2019-02-13 | 2019-05-03 | 合肥江淮铸造有限责任公司 | A kind of automobile hub casting coaxiality check fixture |
| CN114459957B (en) * | 2021-12-31 | 2024-03-26 | 洛阳泰纳克高温仪器设备有限公司 | High-temperature viscosity tester for continuous casting mold flux |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878886A (en) * | 2012-09-24 | 2013-01-16 | 常州市双成工具有限公司 | Device for measuring axial size of beading in workpiece hole |
| CN103528485A (en) * | 2013-10-25 | 2014-01-22 | 无锡富瑞德精密机械有限公司 | Tension type coaxiality measurement mechanism for steel balls |
| WO2016011942A1 (en) * | 2014-07-23 | 2016-01-28 | 北京航天控制仪器研究所 | Apparatus for detecting coaxiality of rotary table frame |
| CN205909773U (en) * | 2016-08-24 | 2017-01-25 | 中国电子科技集团公司第三十八研究所 | A axiality detection device for selling axle precision assembly |
| WO2017050288A1 (en) * | 2015-09-25 | 2017-03-30 | 江苏太平洋精锻科技股份有限公司 | Checking tool for metering distance between adjacent sinking grooves in inner hole of mechanical part |
| CN208091358U (en) * | 2018-03-07 | 2018-11-13 | 埃恩精工无锡有限公司 | Slot diameter bearing gauge with close up function |
-
2018
- 2018-03-07 CN CN201810178679.1A patent/CN108303013B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878886A (en) * | 2012-09-24 | 2013-01-16 | 常州市双成工具有限公司 | Device for measuring axial size of beading in workpiece hole |
| CN103528485A (en) * | 2013-10-25 | 2014-01-22 | 无锡富瑞德精密机械有限公司 | Tension type coaxiality measurement mechanism for steel balls |
| WO2016011942A1 (en) * | 2014-07-23 | 2016-01-28 | 北京航天控制仪器研究所 | Apparatus for detecting coaxiality of rotary table frame |
| WO2017050288A1 (en) * | 2015-09-25 | 2017-03-30 | 江苏太平洋精锻科技股份有限公司 | Checking tool for metering distance between adjacent sinking grooves in inner hole of mechanical part |
| CN205909773U (en) * | 2016-08-24 | 2017-01-25 | 中国电子科技集团公司第三十八研究所 | A axiality detection device for selling axle precision assembly |
| CN208091358U (en) * | 2018-03-07 | 2018-11-13 | 埃恩精工无锡有限公司 | Slot diameter bearing gauge with close up function |
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| Publication number | Publication date |
|---|---|
| CN108303013A (en) | 2018-07-20 |
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