CN112284210B - Measuring tool for rapidly measuring diameter of conical inner cavity casing - Google Patents
Measuring tool for rapidly measuring diameter of conical inner cavity casing Download PDFInfo
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- CN112284210B CN112284210B CN202011277340.0A CN202011277340A CN112284210B CN 112284210 B CN112284210 B CN 112284210B CN 202011277340 A CN202011277340 A CN 202011277340A CN 112284210 B CN112284210 B CN 112284210B
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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
- G01B5/003—Measuring of motor parts
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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
- G01B5/08—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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- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a measuring tool for rapidly measuring the diameter of a conical inner cavity casing, wherein two plane positioning blocks a and positioning blocks b are fixed at two ends of a body seat, and a measuring rod b is a fixed measuring rod and is arranged on the right side of the body seat; the support is arranged in the cavity of the body seat, the support block is arranged in the cavity of the support, and the measuring rod a and the measuring rod c are fixed to form a movable measuring rod; the flange linear bearing and the bush are respectively fixed at two ends of the support; the pull rod is fixed on the support block, and the compression spring is arranged on the pull rod; the handle is fixed with the pull rod in the vertical direction; the sliding rod is fixed on the supporting block, and the two spherical deep groove bearings slide with the two baffles on the support in a gapless manner; a bracket is arranged on the body seat in the same direction as the movable measuring rod and is fixed with the body seat through welding; the support is provided with a spring for clamping the measuring meter, and the limiting screw is arranged below the measuring meter. The measuring tool disclosed by the invention is light in overall weight, convenient and quick, can improve the production efficiency, has a good application effect and has an actual application value.
Description
Technical Field
The invention relates to the technical field of measurement of aero-engine casings, in particular to a measuring tool for rapidly measuring the diameter of a conical inner cavity casing.
Background
The aero-engine has more cartridge receiver parts, wherein the number of the conical inner cavity cartridge receivers is more, and the diameter measurement of the inner cavity of the cartridge receiver is indispensable. The diameter measurement of the original ruler plate transverse quantity equipped with the limit pin has the problems of insensitive measurement data, complex tool structure, large error and the like in the measurement.
Disclosure of Invention
In order to solve the technical problem, the invention provides a measuring tool for rapidly measuring the diameter of a conical inner cavity casing, which has the following specific technical scheme:
a measuring tool for rapidly measuring the diameter of a conical inner cavity casing is characterized by comprising a body seat, a sliding rod, a measuring rod a, a baffle plate, a pull rod, a handle, a stop block, a positioning block a, a measuring rod b, a bushing, a support block, a stop pin, a measuring rod c, a positioning block b, a support, a flange linear bearing, a clamping spring, a screw, a limiting screw, a pin a, a pin b, a deep groove ball bearing, a spring and a gasket;
the middle of the body seat is provided with a cavity, the upper part and the lower part of the body seat are provided with strip-shaped grooves, and the front part of the body seat is provided with a rectangular opening;
fixing two plane positioning blocks a and two plane positioning blocks b at two ends of the body seat to form positioning surfaces for positioning the axial plane of the measuring tool;
a baffle block is arranged in the body seat cavity corresponding to the positioning block a, and the positioning block a penetrates through the bottom of the body seat through a screw to be fixed on the baffle block;
the measuring rod b is a fixed measuring rod, is arranged on the right side of the body seat and penetrates through the positioning block a and the bottom of the body seat through bolts to be fixed on the stop block;
the support is arranged in the cavity of the body seat, and the middle of the support is provided with a cavity;
the support block is arranged in a cavity of the support, one end of the measuring rod a penetrates through the support block and extends out of the strip-shaped groove at the upper end of the body seat, and the other end of the measuring rod a is fixed with the measuring rod c to form a movable measuring rod;
the flange linear bearing and the bush are respectively fixed at the mounting openings at the two ends of the support through screws;
the pull rod penetrates through the bush at one end to be fixed on the support block, and a gasket is arranged in the direction of the support corresponding to the support block;
the compression spring is arranged on the pull rod, one end of the compression spring is attached to one side of the support, and the other end of the compression spring is in contact with the gasket and is used for pushing the support block to drive the measuring rod to move towards the inner wall of the casing to finish measurement;
the handle extends into the cavity through the strip-shaped groove at the upper end of the body seat and is fixed with one end of the pull rod in the vertical direction;
the sliding rod penetrates through a flange linear bearing on the support and is fixed on the support block, and the sliding rod can slide in the flange linear bearing to play a role in guiding;
bosses are arranged on the front surface and the rear surface of the support block and used for assembling spherical deep groove bearings, and the two spherical deep groove bearings and the two baffle plates arranged on the support seat slide without clearance; the stop pin is fixed on the support block;
a bracket is arranged on the body seat in the same direction as the movable measuring rod and is fixed with the body seat through welding;
two holes parallel to the measuring head are formed in the support, one hole is a unthreaded hole, and the unthreaded hole is used for being assembled with a clamping spring to clamp the measuring meter and is fastened through a screw; the other hole is a mounting hole of a limiting screw, is arranged below the measuring meter and is used for preventing the movable measuring rod from exceeding the measuring range of the indicating meter and protecting the measuring meter;
and the measuring heads on the measuring rod b and the measuring rod c are fixed through screws.
The preferable scheme of the measuring tool for rapidly measuring the diameter of the conical inner cavity casing is that the pull rod and the slide rod are on the same central line.
The preferable scheme of the measuring tool for rapidly measuring the diameter of the conical inner cavity casing is that square steel is adopted as a body seat of the measuring tool.
The preferable scheme of the measuring tool for rapidly measuring the diameter of the conical inner cavity casing is that the upper end surface of the casing is positioned with a positioning block a and a positioning block b in a basic mode, and measuring heads on a measuring rod b and a measuring rod c are in contact with the inner wall of the casing during measurement.
A working principle of a measuring tool for rapidly measuring the diameter of a conical inner cavity casing comprises the following steps: aiming at the size of the inner cavity of the measured conical casing, a measuring tool structure for relative measurement is adopted, a fixed measuring rod and a movable measuring rod are retracted during measurement, so that the measuring rod can avoid the port of the casing smaller than the measured size and enter the position of the diameter size of the inner diameter to be measured for measurement; the fixed measuring rod plays a role in positioning, and the other end of the movable measuring rod is in contact with a general outsourcing measuring meter at a measuring position to make a meter reading so as to obtain a measured value; the movable measuring rod is fixed on the supporting block, a sliding rod is fixed in the direction perpendicular to the movable measuring rod, the sliding rod is used for guiding on the support through a linear bearing, a pull rod is fixed at the other end of the support opposite to the sliding rod, and the pull rod is connected with the handle through the support; two bearings are arranged on the measuring tool, and the measuring rod is pulled to move along the pull rod of the baffle plate, so that the measuring tool does not need a clamping device.
The invention has the beneficial effects that: the technical scheme of the invention can effectively avoid the problem of interference between the measuring tool and the casing body of the casing caused by the fact that the diameter of the upper end of the casing is smaller than the measuring diameter; the measuring tool is simple and quick to operate; adopt portable measuring stick to measure the barrel inner chamber diameter, the gauge is fixed on the body seat of square steel preparation, and the diameter of this department can direct real reflection through the reading change of gauge, adopts the guide effect of linear bearing and bush, and the operator can very conveniently accomplish the measurement, and the data accuracy of measuring under this state is high. The measuring tool is light in overall weight, more convenient and faster than a conventional ruler plate in measurement, and capable of improving production efficiency.
Drawings
Fig. 1 is a schematic structural diagram of a tool for rapidly measuring the diameter of a conical cavity casing.
In the figure: 1-trunk seat; 2-a slide bar; 3-measuring rod a; 4-a baffle plate; 5-a pull rod; 6-a handle; 7-a stop block; 8-positioning block a; 9-measuring rod b; 10-a bushing; 11-a branch block; 12-a stop pin; 13-measuring rod c; 14-positioning block b; 15-a support; 16-flange linear bearings; 17-a clamp spring; 18-screw, 19-limit screw; 20-pin a; 21-pin b; 22-deep groove ball bearing; 23-a compression spring; 24-washer.
Detailed Description
A measuring tool for rapidly measuring the diameter of a conical inner cavity casing comprises a body seat 1, a sliding rod 2, a measuring rod a3, a baffle 4, a pull rod 5, a handle 6, a stop dog 7, a positioning block a8, a measuring rod b9, a bushing 10, a support block 11, a stop pin 12, a measuring rod c13, a positioning block b14, a support 15, a flange linear bearing 16, a clamping spring 17, a screw 18, a limiting screw 19, a pin a20, a pin b21, a deep groove ball bearing 22, a compression spring 23 and a gasket 24;
the middle of the body seat 1 is provided with a cavity, the upper part and the lower part of the cavity are provided with strip-shaped grooves, and the front part of the cavity is provided with a rectangular opening;
fixing two plane positioning blocks a8 and b14 at two ends of the body seat 1 to form positioning surfaces for positioning the axial plane of the measuring tool;
a block 4 is arranged in the cavity of the body seat 1 corresponding to the positioning block a8, and the positioning block a8 penetrates through the bottom of the body seat 1 through a screw 18 and is fixed on the block 4;
the measuring rod b14 is a fixed measuring rod, is arranged on the right side of the body seat 1, and is fixed on the stop block 4 through a bolt penetrating through the positioning block a8 and the bottom of the body seat 1;
the support 15 is arranged in the cavity of the body seat 1, and the middle of the support 15 is provided with a cavity;
the support block 11 is arranged in the cavity of the support 15, one end of the measuring rod a3 penetrates through the support block 11 and extends out of the strip-shaped groove at the upper end of the body seat 1, and the other end of the measuring rod a3 is fixed with the measuring rod c13 to form a movable measuring rod;
the flange linear bearing 16 and the bush 10 are respectively fixed at the mounting openings at two ends of the support 15 through screws;
the pull rod 5 penetrates through a bush 10 at one end to be fixed on the support block 11, and a gasket 24 is arranged in the direction of the support 15 corresponding to the support block 11;
the compression spring 23 is arranged on the pull rod 5, one end of the compression spring is attached to one side of the support 15, and the other end of the compression spring is in contact with the gasket 24 and is used for pushing the support block 11 to drive the measuring rod to move towards the inner wall of the casing to finish measurement;
the handle 6 extends into the cavity through the strip-shaped groove at the upper end of the body seat 1 and is fixed with one end of the pull rod 5 in the vertical direction;
the sliding rod 2 penetrates through a flange linear bearing 16 on the support 15 and is fixed on the support block 11, and the sliding rod 2 can slide in the flange linear bearing 16 to play a role in guiding;
bosses are arranged on the front surface and the rear surface of the support block 11 and used for assembling the spherical deep groove bearings 22, and the two spherical deep groove bearings 22 slide with the two baffle plates 4 arranged on the support 15 without clearance; the stop pin 12 is fixed on the support block 11 and used for fixing the bearing and ensuring that the outer ring of the bearing slides in the baffle 4 without clearance;
a bracket is arranged on the body seat 1 in the same direction as the movable measuring rod and is fixed with the body seat 1 through welding;
two holes parallel to the measuring head are formed in the support, one hole is a unthreaded hole, and the unthreaded hole is used for being assembled with a clamping spring 17 to clamp the measuring meter and is fastened through a screw; the other hole is a mounting hole of a limiting screw, is arranged below the measuring meter and is used for preventing the movable measuring rod from exceeding the measuring range of the indicating meter and protecting the measuring meter;
the measuring heads on the measuring rod b9 and the measuring rod c13 are fixed through screws.
The pull rod 5 and the slide rod 2 are on the same central line.
The square steel is used as a body seat 1 of the measuring tool.
The upper end surface of the casing is positioned with the positioning block a8 and the positioning block b14 in a basic mode, and measuring heads on the measuring rod b9 and the measuring rod c13 are in contact with the inner wall of the casing during measurement.
Claims (4)
1. A measuring tool for rapidly measuring the diameter of a conical inner cavity casing is characterized by comprising a body seat, a sliding rod, a measuring rod a, a baffle plate, a pull rod, a handle, a stop block, a positioning block a, a measuring rod b, a bushing, a support block, a stop pin, a measuring rod c, a positioning block b, a support, a flange linear bearing, a clamping spring, a screw, a limiting screw, a pin a, a pin b, a deep groove ball bearing, a spring and a gasket;
the middle of the body seat is provided with a cavity, the upper part and the lower part of the body seat are provided with strip-shaped grooves, and the front part of the body seat is provided with a rectangular opening;
fixing two plane positioning blocks a and two plane positioning blocks b at two ends of the body seat to form positioning surfaces for positioning the axial plane of the measuring tool;
a baffle block is arranged in the body seat cavity corresponding to the positioning block a, and the positioning block a penetrates through the bottom of the body seat through a screw to be fixed on the baffle block;
the measuring rod b is a fixed measuring rod, is arranged on the right side of the body seat and penetrates through the positioning block a and the bottom of the body seat through bolts to be fixed on the stop block;
the support is arranged in the cavity of the body seat, and the middle of the support is provided with a cavity;
the support block is arranged in a cavity of the support, one end of the measuring rod a penetrates through the support block and extends out of the strip-shaped groove at the upper end of the body seat, and the other end of the measuring rod a is fixed with the measuring rod c to form a movable measuring rod;
the flange linear bearing and the bush are respectively fixed at the mounting openings at the two ends of the support through screws;
the pull rod penetrates through the bush at one end to be fixed on the support block, and a gasket is arranged in the direction of the support corresponding to the support block;
the compression spring is arranged on the pull rod, one end of the compression spring is attached to one side of the support, and the other end of the compression spring is in contact with the gasket and is used for pushing the support block to drive the measuring rod to move towards the inner wall of the casing to finish measurement;
the handle extends into the cavity through the strip-shaped groove at the upper end of the body seat and is fixed with one end of the pull rod in the vertical direction;
the sliding rod penetrates through a flange linear bearing on the support and is fixed on the support block, and the sliding rod can slide in the flange linear bearing to play a role in guiding;
bosses are arranged on the front surface and the rear surface of the support block and used for assembling spherical deep groove bearings, and the two spherical deep groove bearings and the two baffle plates arranged on the support seat slide without clearance; the stop pin is fixed on the support block;
a bracket is arranged on the body seat in the same direction as the movable measuring rod and is fixed with the body seat through welding;
two holes parallel to the measuring head are formed in the support, one hole is a unthreaded hole, and the unthreaded hole is used for being assembled with a clamping spring to clamp the measuring meter and is fastened through a screw; the other hole is a mounting hole of a limiting screw, is arranged below the measuring meter and is used for preventing the movable measuring rod from exceeding the measuring range of the indicating meter and protecting the measuring meter;
and the measuring heads on the measuring rod b and the measuring rod c are fixed through screws.
2. The tool for rapidly measuring the diameter of the conical inner cavity casing according to claim 1, wherein: the pull rod and the slide rod are on the same central line.
3. The tool for rapidly measuring the diameter of the conical inner cavity casing according to claim 1, wherein: the square steel is used as a body seat of the measuring tool.
4. The tool for rapidly measuring the diameter of the conical inner cavity casing according to claim 1, wherein: the upper end surface of the casing is positioned with the foundation of the positioning block a and the positioning block b, and measuring heads on the measuring rod b and the measuring rod c are contacted with the inner wall of the casing during measurement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011277340.0A CN112284210B (en) | 2020-11-16 | 2020-11-16 | Measuring tool for rapidly measuring diameter of conical inner cavity casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011277340.0A CN112284210B (en) | 2020-11-16 | 2020-11-16 | Measuring tool for rapidly measuring diameter of conical inner cavity casing |
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| Publication Number | Publication Date |
|---|---|
| CN112284210A CN112284210A (en) | 2021-01-29 |
| CN112284210B true CN112284210B (en) | 2021-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011277340.0A Active CN112284210B (en) | 2020-11-16 | 2020-11-16 | Measuring tool for rapidly measuring diameter of conical inner cavity casing |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115183655B (en) * | 2021-09-17 | 2024-09-27 | 杭州廷晨机械有限公司 | Inner spigot diameter measurer convenient to use |
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| DE3623362A1 (en) * | 1986-07-11 | 1988-01-21 | Opel Adam Ag | Measuring and testing device for determining the arc length of semicircular bearing shells (bushes) |
| RU2164003C2 (en) * | 1998-07-13 | 2001-03-10 | Открытое акционерное общество "Электростальский завод тяжелого машиностроения" | Device measuring diameters |
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| CN203772190U (en) * | 2014-04-03 | 2014-08-13 | 内蒙古第一机械集团有限公司 | Precision measurement device for holes with large diameters and small depths |
| CN206056476U (en) * | 2016-08-30 | 2017-03-29 | 西安泰锐精密机械科技有限公司 | A kind of OCTG inner thread conicity measuring instrument |
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| CN211291226U (en) * | 2020-02-28 | 2020-08-18 | 西安泰锐精密机械科技有限公司 | Special thread sealing surface diameter measuring device |
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