CN111879198A - Axle type of adjustable height and axial position is beated and is detected measuring tool - Google Patents
Axle type of adjustable height and axial position is beated and is detected measuring tool Download PDFInfo
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- CN111879198A CN111879198A CN202010746316.0A CN202010746316A CN111879198A CN 111879198 A CN111879198 A CN 111879198A CN 202010746316 A CN202010746316 A CN 202010746316A CN 111879198 A CN111879198 A CN 111879198A
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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
Abstract
The invention discloses a shaft run-out detection measuring tool with adjustable height and axial position, which comprises two dial indicators, two U-shaped pressing plates, two levers, two L-shaped supports, two gauge seats, a base and a positioning plate, wherein the two dial indicators are arranged on the two L-shaped supports; the base is provided with T-shaped grooves which penetrate through the upper part and the side part of the base, the two L-shaped brackets are fixed in the upper T-shaped groove, and the two gauge seats are fixed in the side T-shaped grooves; the dial indicator is characterized in that the dial indicators are connected with the two gauge seats through gauge clamping sleeves, the dial indicators are fixed with the gauge seats through screws, a U-shaped pressing plate is arranged on each gauge seat to fix a lever on the side of the gauge seat, the lever is limited through a first cylindrical pin positioned on the gauge seat and a second cylindrical pin positioned on the U-shaped pressing plate, and a positioning plate is arranged right in front of the base. The invention can realize quick assembly and disassembly in the batch run-out detection of the shaft quickly and conveniently, reduces the labor intensity, greatly improves the detection efficiency, can detect the run-out detection of a plurality of shaft sections under the condition of one-time clamping and positioning by increasing the number of the dial indicators, and avoids the error generated when the shaft is repeatedly assembled, disassembled and repositioned.
Description
Technical Field
The invention relates to a detection device for machining, in particular to a shaft run-out detection measuring tool with adjustable height and axial position.
Background
At present, in the mechanical manufacturing industry, in order to achieve higher product performance, the requirement on the runout between a shaft and a shaft of a rotary part is higher and higher, and due to the requirement on production efficiency, the quality and the quantity are guaranteed, meanwhile, the inspection procedure is simplified, and the inspection time is as long as possible. At present, the jitter detection method mainly depends on a deflection instrument for detection, and has low detection efficiency and large influence of human factors. Meanwhile, due to the influence of the size and the weight of the part, the deflection instrument needs to be lifted manually when detecting, the shaft part is positioned by a tip, then a point is adopted to fit into a circle, a rotating main shaft is usually involved, the requirement on repeated positioning precision is high, and a detection error exists during detection.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the shaft type runout detection measuring tool which can avoid errors, reduce labor intensity and greatly improve detection efficiency and can adjust the height and the axial position.
The technical scheme of the invention is as follows:
a shaft type jumping detection measuring tool with adjustable height and axial position comprises a base, wherein a top wall T-shaped groove is formed in the middle of the top surface of the base along the length direction of the base, a side wall T-shaped groove is formed in the front wall or the rear wall of the base along the length direction of the base, two L-shaped supports with the same structure are connected with the top wall T-shaped groove, a V-shaped groove is formed in the top surface of the vertical wall of each L-shaped support, a bolt hole is formed in the horizontal wall of each L-shaped support, a first T-shaped bolt is respectively installed in the top wall T-shaped groove corresponding to the bolt hole of each L-shaped support, a bolt rod of each first T-shaped bolt penetrates through the bolt hole to be fixedly connected with a nut, so that the L-shaped supports are fixed on the base, and the V-shaped grooves of the two L-shaped supports are used for supporting the left end and;
the two gauge seats are connected with the T-shaped grooves on the side walls, each gauge seat comprises a bottom support arranged along the vertical direction, an inverted L-shaped top support is respectively arranged on the left side of the top wall of the bottom support of one gauge seat and the right side of the top wall of the bottom support of the other gauge seat, the middle of the bottom surface of the vertical wall of each top support is vertically and fixedly connected with the top wall of the bottom support, a long strip hole of the gauge seat is formed in the middle of the bottom support and along the vertical direction, a second T-shaped bolt is respectively arranged in the T-shaped groove on the side wall corresponding to the long strip hole of the gauge seat of each bottom support, and a bolt rod of the second T-shaped bolt penetrates through the long strip hole of the gauge seat to be fixedly connected with a nut so that the gauge seat is fixed on the base; a U-shaped pressing plate is fixed on the top support of each gauge stand, and the upper and lower flange plates of the U-shaped pressing plate are fixedly connected with the horizontal wall of the top support and the vertical wall of the top support through bolts;
a mounting hole is formed in the horizontal wall of each top support along the vertical direction, a dial indicator clamping sleeve is mounted in the mounting hole, a screw penetrating through the side wall of the top support along the horizontal direction abuts against the dial indicator clamping sleeve, and a shaft lever of a dial indicator penetrates through the dial indicator clamping sleeve; a first cylindrical pin is fixed on a vertical wall of a top support below a shaft lever of the dial indicator and in a direction perpendicular to the vertical wall of the top support, the front end of a lever is arranged between the first cylindrical pin and the lower end of the shaft lever of the dial indicator, when the lever is in a horizontal position, the front end of the lever can be in contact with the first cylindrical pin to achieve a limiting effect, the lower end of the shaft lever of the dial indicator is always in contact with the front end of the lever, one end of a second cylindrical pin is fixed on a web plate of a U-shaped pressing plate, the other end of the second cylindrical pin penetrates through the middle of the lever to be fixedly connected with the vertical wall of the top support, the lever can rotate around the second cylindrical pin, and the rear end of the lever is in contact with the outer surface to be detected of a shaft part;
the bottom of a positioning plate is fixed on the right wall of the base, a positioning plate strip hole is formed in the middle of the upper portion of the positioning plate in the vertical direction, and a screw rod of a cylindrical head positioning screw penetrates through the positioning plate strip hole, the end portion of the screw rod abuts against the right end of the measured shaft part, and the screw rod is fixedly connected with the positioning plate through a nut.
The invention has the advantages and positive effects that: the multifunctional bounce detection measuring tool is convenient and quick to operate, can quickly and conveniently realize quick assembly and disassembly in batch bounce detection of shafts, reduces labor intensity, greatly improves detection efficiency, can detect bounce detection of a plurality of shaft sections under the condition of one-time clamping and positioning by increasing the number of dial indicators, and avoids errors generated during repeated assembly, disassembly and repositioning. Can avoid manual lifting influence and is suitable for various types of measured shaft parts. Meanwhile, the lever structure device is adopted to detect the jumping of the part, the surface contact of the lever is in linear continuous motion on the surface to be detected, the jumping of the lever gauge outfit is observed, data can be read out visually, and the sampling point fitting error is avoided.
Drawings
FIG. 1 is a front view of an adjustable height and axial position shaft runout measuring tool of the present invention;
FIG. 2 is a left side view of the measuring gauge shown in FIG. 1;
FIG. 3 is a perspective view of an adjustable height and axial position shaft runout measuring tool of the present invention;
fig. 4 is a schematic view of the structure of a lever in the measuring gauge shown in fig. 1.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:
referring to fig. 1 to 3, the shaft runout measuring tool capable of adjusting height and axial position of the invention comprises a base 12, a top wall T-shaped groove is formed in the middle of the top surface of the base 12 along the length direction of the base 12, a side wall T-shaped groove is formed in the front wall or the rear wall of the base 12 along the length direction of the base 12, two L-shaped brackets 10 with the same structure are connected with the top wall T-shaped groove, a V-shaped groove is formed in the top surface of the vertical wall of each L-shaped bracket 10, a bolt hole is formed in the horizontal wall of each L-shaped bracket 10, a first T-shaped bolt 9 is respectively installed in the top wall T-shaped groove corresponding to the bolt hole of each L-shaped bracket 10, and a bolt rod of each first T-shaped bolt 9 penetrates through the bolt hole to be fixedly connected with a nut 8, so that the L-shaped brackets 10 are fixed on the base 12. The left and right positions of each L-shaped bracket 10 can be adjusted at will after the nut 8 is loosened, so that the L-shaped bracket is convenient to adapt to the installation positions of various parts of the shaft to be measured. The V-shaped grooves of the two L-shaped brackets 10 are used for supporting the left end and the right end of the shaft workpiece.
Two gauge stands 11 that link to each other with lateral wall T type groove, two gauge stands 11 all include the bottom sprag that sets up along vertical direction, be provided with an inverted L shape top sprag respectively in the left side of the roof of the bottom sprag of one of them gauge stand 11 and on the right side of the roof of the bottom sprag of another gauge stand 11, in the middle of the bottom surface of the vertical wall of each top sprag with the perpendicular fixed connection of roof of bottom sprag middle and along vertical direction open and have a gauge stand rectangular hole, install a second T type bolt 4 respectively in the lateral wall T type inslot that corresponds the rectangular hole department of gauge stand of each bottom sprag, the stock of second T type bolt 4 pass gauge stand rectangular hole and fix with the nut and link to each other and make gauge stand 11 fix on base 12. The height of the gauge stand can be adjusted along the long holes of the gauge stand after the screw cap on the gauge stand 11 is loosened, and the left and right positions of the gauge stand can be adjusted by moving left and right along the T-shaped groove on the side wall, so that various types of measured shaft parts can be conveniently detected. A U-shaped pressing plate 5 is fixed on the top support of each gauge stand 11, and the upper flange plate and the lower flange plate of the U-shaped pressing plate 5 are fixedly connected with the horizontal wall of the top support and the vertical wall of the top support through bolts.
A mounting hole is formed in the horizontal wall of each top support along the vertical direction, a dial indicator clamping sleeve 1 is mounted in the mounting hole, a screw 15 penetrating through the side wall of the top support along the horizontal direction abuts against the dial indicator clamping sleeve 1, and a shaft rod of a dial indicator 3 penetrates through the dial indicator clamping sleeve 1. The watch clamping sleeve 1 can prevent the watch rod from deforming, and if the watch clamping sleeve 1 is damaged after being used for a long time, the watch clamping sleeve can be replaced in time.
The first cylindrical pin 2 is fixed on the vertical wall of the top support below the shaft lever of the dial indicator 3 and in the direction perpendicular to the vertical wall of the top support, the front end of one lever 7 is arranged between the first cylindrical pin 2 and the lower end of the shaft lever of the dial indicator 3, and when the lever 7 is in the horizontal position, the front end of the lever 7 can be in contact with the first cylindrical pin to be arranged to play a limiting role. The lower end of the shaft lever of the dial indicator 3 is always in contact with the front end of the lever 7. One end of a second cylindrical pin 6 is fixed on the web plate of the U-shaped pressure plate 5, and the other end of the second cylindrical pin passes through the middle of a lever 7 and is fixedly connected with a vertical wall of the top support, and the lever 7 can rotate around the second cylindrical pin 6. The rear end of the lever 7 is in contact with the outer surface to be detected of the shaft part to be detected.
In a detection state, the front end of the lever 7 presses the measuring range of the dial indicator 3 to 1-2 mm to reach a measuring range, the lever 7 is divided into a front part and a rear part by taking the second cylindrical pin 6 as a center, the length ratio of the front part to the rear part is 1:1, therefore, the jumping data of the front end of the lever 7 can be transmitted to the rear end in the ratio of 1:1 according to the lever theorem, and the transmitted data is measured by the dial indicator 3 at the front end.
The bottom of a positioning plate 13 is fixed on the right wall of the base 12, a positioning plate long hole is arranged in the middle of the upper part of the positioning plate 13 along the vertical direction, and a screw rod of a cylindrical head positioning screw 14 penetrates through the positioning plate long hole, the end part of the screw rod is tightly propped against the right end of a measured shaft part, and the screw rod is fixedly connected with the positioning plate through a nut. The length of the cylinder head positioning screw 14 can be adjusted by loosening the nut, and one end of the cylinder head positioning screw extending out of the positioning plate 13 has a positioning effect on a measured shaft part.
The installation and use method of the device comprises the following steps:
(1) the L-shaped support 10 and the gauge stand 11 are placed on the base 12, and adjusted to a reasonable position according to the shaft size of the part to be measured, and the level is adjusted at the same time.
(2) The measured shaft part is placed in the V-shaped grooves of the two L-shaped supports 10 with equal height, the reference axis is horizontal, and the measured shaft part is propped by the cylindrical head positioning screw 14.
(3) The right end of the lever 7 is in contact with the outer surface to be detected of the part of the shaft to be detected, and the other end of the lever is in contact with the top of the dial indicator 3, so that the dial indicator 3 has a certain compression amount.
(4) And slowly and uniformly rotating the part of the shaft to be measured for a circle, and observing the head of the dial indicator 3 to jump so as to finish the jump measurement. The above operation is repeated to observe another dial indicator 3, and the jump error of the section is obtained.
(5) And finishing the detection report and sorting the experimental apparatus.
Although the preferred embodiment of the present invention has been described above with reference to the drawings, the present invention is not limited to the above-mentioned specific embodiment, for example, three or more dial indicators 3 can be added to detect the run-out of different sections of different step axes, therefore, the above-mentioned specific embodiment is only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention as claimed in the claims.
Claims (1)
1. The utility model provides an axle type of adjustable height and axial position is beated and is detected measuring tool which characterized in that: the shaft type workpiece support comprises a base (12), wherein a top wall T-shaped groove is formed in the middle of the top surface of the base along the length direction of the base, a side wall T-shaped groove is formed in the front wall or the rear wall of the base along the length direction of the base, two L-shaped supports (10) with the same structure are connected with the top wall T-shaped groove, a V-shaped groove is formed in the top surface of the vertical wall of each L-shaped support, a bolt hole is formed in the horizontal wall of each L-shaped support, a first T-shaped bolt (9) is respectively installed in the top wall T-shaped groove corresponding to the bolt hole of each L-shaped support, a bolt rod of each first T-shaped bolt penetrates through the bolt hole to be fixedly connected with a nut (8) so that the L-shaped supports are fixed on the base (12), and the V-shaped grooves of the two L-shaped supports are used for supporting;
the two gauge seats (11) are connected with the T-shaped grooves on the side walls, each gauge seat comprises a bottom support arranged along the vertical direction, an inverted L-shaped top support is respectively arranged on the left side of the top wall of the bottom support of one gauge seat and the right side of the top wall of the bottom support of the other gauge seat, the middle of the bottom surface of each vertical wall of the top support is vertically and fixedly connected with the top wall of the bottom support, a long strip hole of the gauge seat is formed in the middle of the bottom support and along the vertical direction, a second T-shaped bolt (4) is respectively arranged in the T-shaped groove on the side wall corresponding to the long strip hole of the gauge seat of each bottom support, and a bolt rod of the second T-shaped bolt penetrates through the long strip hole of the gauge seat to be fixedly connected with a nut so that the gauge seats are fixed on the base (; a U-shaped pressing plate (5) is respectively fixed on the top support of each gauge stand, and the upper and lower flange plates of the U-shaped pressing plate (5) are respectively fixedly connected with the horizontal wall of the top support and the vertical wall of the top support through bolts;
a mounting hole is formed in the horizontal wall of each top support along the vertical direction, a dial indicator clamping sleeve (1) is mounted in the mounting hole, a screw (15) penetrating through the side wall of the top support along the horizontal direction tightly props the dial indicator clamping sleeve, and a shaft lever of a dial indicator (3) penetrates through the dial indicator clamping sleeve; a first cylindrical pin (2) is fixed on the vertical wall of the top support below the shaft lever of the dial indicator (3) and along the direction vertical to the vertical wall of the top support, the front end of a lever (7) is arranged between the first cylindrical pin (2) and the lower end of the shaft lever of the dial indicator (3), when the lever is in a horizontal position, the front end of the lever can be contacted with the first cylindrical pin to play a limiting role, the lower end of a shaft lever of the dial indicator (3) is always in contact with the front end of the lever, one end of a second cylindrical pin (6) is fixed on a web plate of the U-shaped pressing plate (5) and the other end of the second cylindrical pin penetrates through the middle of the lever to be fixedly connected with a vertical wall of the top support, the lever can rotate around the second cylindrical pin (6), and the rear end of the lever (7) is in contact with the outer surface to be detected of the part of the detected shaft;
the bottom of a positioning plate (13) is fixed on the right wall of the base (12), a positioning plate long hole is formed in the middle of the upper portion of the positioning plate along the vertical direction, and a screw rod of a cylindrical head positioning screw (14) penetrates through the positioning plate long hole, the end portion of the screw rod is tightly propped against the right end of a measured shaft part, and the screw rod is fixedly connected with the positioning plate through a nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010746316.0A CN111879198B (en) | 2020-07-29 | 2020-07-29 | Axle type of adjustable height and axial position is beated and is detected measuring tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010746316.0A CN111879198B (en) | 2020-07-29 | 2020-07-29 | Axle type of adjustable height and axial position is beated and is detected measuring tool |
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| Publication Number | Publication Date |
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| CN111879198A true CN111879198A (en) | 2020-11-03 |
| CN111879198B CN111879198B (en) | 2021-12-14 |
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| CN202010746316.0A Active CN111879198B (en) | 2020-07-29 | 2020-07-29 | Axle type of adjustable height and axial position is beated and is detected measuring tool |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112414257A (en) * | 2021-01-14 | 2021-02-26 | 桂林福达重工锻造有限公司 | Crankshaft blank center hole runout testing fixture |
| CN114111495A (en) * | 2021-11-05 | 2022-03-01 | 新乡航空工业(集团)有限公司 | Jumping measurement gauge with external thread as reference |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB578228A (en) * | 1944-01-25 | 1946-06-20 | Reginald Frank Warry | Improvements in or relating to comparator gauges for measuring internal diameters |
| US4285132A (en) * | 1979-10-22 | 1981-08-25 | Kloster Kenneth D | Piston rod runout gauge |
| CN204831058U (en) * | 2015-05-11 | 2015-12-02 | 襄阳福达东康曲轴有限公司 | On -line measuring bent axle circle is beated examines utensil |
| CN206387332U (en) * | 2016-12-29 | 2017-08-08 | 上海金众汽车配件有限公司 | A kind of circular runout detection means of auto parts and components |
| CN206832155U (en) * | 2017-06-19 | 2018-01-02 | 上海格尔恒精材料科技有限公司 | Bar appearance detection apparatus and bar appearance detection system |
| CN209147866U (en) * | 2019-01-08 | 2019-07-23 | 王睿 | A kind of long profile shaft class measuring device |
| CN210922426U (en) * | 2019-12-26 | 2020-07-03 | 佰鑫源精密机械（厦门）有限公司 | Novel main shaft beat detect frock |
-
2020
- 2020-07-29 CN CN202010746316.0A patent/CN111879198B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB578228A (en) * | 1944-01-25 | 1946-06-20 | Reginald Frank Warry | Improvements in or relating to comparator gauges for measuring internal diameters |
| US4285132A (en) * | 1979-10-22 | 1981-08-25 | Kloster Kenneth D | Piston rod runout gauge |
| CN204831058U (en) * | 2015-05-11 | 2015-12-02 | 襄阳福达东康曲轴有限公司 | On -line measuring bent axle circle is beated examines utensil |
| CN206387332U (en) * | 2016-12-29 | 2017-08-08 | 上海金众汽车配件有限公司 | A kind of circular runout detection means of auto parts and components |
| CN206832155U (en) * | 2017-06-19 | 2018-01-02 | 上海格尔恒精材料科技有限公司 | Bar appearance detection apparatus and bar appearance detection system |
| CN209147866U (en) * | 2019-01-08 | 2019-07-23 | 王睿 | A kind of long profile shaft class measuring device |
| CN210922426U (en) * | 2019-12-26 | 2020-07-03 | 佰鑫源精密机械（厦门）有限公司 | Novel main shaft beat detect frock |
Non-Patent Citations (1)
| Title |
|---|
| 熊巍: "可调式气缸套内外圆跳动检测装置", 《内燃机与配件》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112414257A (en) * | 2021-01-14 | 2021-02-26 | 桂林福达重工锻造有限公司 | Crankshaft blank center hole runout testing fixture |
| CN112414257B (en) * | 2021-01-14 | 2022-05-06 | 桂林福达重工锻造有限公司 | Crankshaft blank center hole runout testing fixture |
| CN114111495A (en) * | 2021-11-05 | 2022-03-01 | 新乡航空工业(集团)有限公司 | Jumping measurement gauge with external thread as reference |
| CN114111495B (en) * | 2021-11-05 | 2023-08-04 | 新乡航空工业(集团)有限公司 | Jumping measurement gauge taking external thread as reference |
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| CN111879198B (en) | 2021-12-14 |
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