CN109556485B - Adjustable fixed inspection lining device for position degree measuring tool and using method thereof - Google Patents
Adjustable fixed inspection lining device for position degree measuring tool and using method thereof Download PDFInfo
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- CN109556485B CN109556485B CN201811410282.7A CN201811410282A CN109556485B CN 109556485 B CN109556485 B CN 109556485B CN 201811410282 A CN201811410282 A CN 201811410282A CN 109556485 B CN109556485 B CN 109556485B
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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
- G01B5/004—Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points
- G01B5/008—Measuring arrangements characterised by the use of mechanical techniques for measuring coordinates of points using coordinate measuring machines
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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
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
Abstract
The invention discloses an adjustable fixed inspection bushing device for a position degree measuring tool, wherein a mounting seat is cylindrical with a boss, the boss is a mounting edge, and an ejection threaded hole is formed in the mounting edge; a concave through hole with a wide upper part and a narrow lower part is arranged in the mounting seat, the lower end is a positioning hole, and the upper end is a detection hole; the detection bushing is arranged in the detection hole; the connecting pin is inserted into the inner hole of the inspection bushing through the positioning hole and used for fixing the inspection bushing; the conical adjusting pin is arranged in the inspection hole, one side of the conical adjusting pin is in line contact with the inspection hole wall of the mounting seat, and the conical surface of the other side of the conical adjusting pin is in line contact with the conical surface of the inspection bushing; an inner hexagonal hole is formed in the upper end of the conical adjusting pin, the inspection bushing can be extruded by adjusting the conical adjusting pin, and the purpose of adjusting the position of the inner hole in the upper end of the inspection bushing is achieved; epoxy is injected between the conical adjustment pin and the check bushing for fixing the check bushing position. The invention also relates to a method, and the technical scheme of the invention has the advantages of reasonable structure, convenient adjustment and higher positioning precision.
Description
Technical Field
The invention relates to the technical field of testing bushing position degree measuring tools, in particular to an adjustable fixed bushing testing device for the position degree measuring tools and a using method thereof.
Background
In the process of machine manufacturing, a position degree measuring tool with a checking bush is often used, the relative position of a hole in a machined part is indirectly detected by checking holes in the checking bush and the machined part through a checking bolt, the measuring tool is simple to use and high in precision, and the position degree of an inner hole of the checking bush is generally required to be phi 0.01 mm-phi 0.02mm at the temperature of 20 ℃.
The small vertical position accuracy measuring tool uses high-precision slow wire moving equipment to cut and test the inner hole of the bushing, the position accuracy of the inner hole of the bushing is tested to be within phi 0.01 mm-phi 0.015mm, and the detecting requirement can be generally met.
The middle-sized vertical position accuracy measuring tool directly grinds and inspects the inner hole of the bushing by adopting a high-precision coordinate mill, and the position accuracy phi of the inner hole of the bushing is inspected to be 0.015 mm-0.02 mm; but the domestic coordinate grinding machine tool is few, keeps the high accuracy a little, and this scheme is applied a little.
The large-scale vertical inspection bush class position degree measuring tool, the bottom hole of inspection bush can only be guaranteed by accurate bore hole equipment, after the inspection bush is installed, the position degree phi 0.02 mm-phi 0.05mm of inspection bush hole, especially when inspection bush quantity is more, the dispersion is big.
Disclosure of Invention
In order to solve the technical problem, the invention aims to provide an adjustable fixed inspection bushing device for a position degree measuring tool, which has the following specific technical scheme:
an adjustable fixed inspection bushing device for a position degree measuring tool comprises a mounting seat, a conical adjusting pin, a connecting pin and an inspection bushing;
the mounting seat is cylindrical with a boss, the boss is a mounting edge, and an ejection threaded hole is formed in the mounting edge;
a concave through hole with a wide upper part and a narrow lower part is arranged in the mounting seat, the lower end of the mounting seat is provided with a positioning hole, and the upper end of the mounting seat is provided with a detection hole;
the inspection bush is arranged in the inspection hole;
the connecting pin is inserted into the inner hole of the inspection bushing through the positioning hole and used for fixing the inspection bushing;
the conical adjusting pin is arranged in the inspection hole, one side of the conical adjusting pin is in line contact with the inspection hole wall of the mounting seat, and the conical surface of the other side of the conical adjusting pin is in line contact with the conical surface of the inspection bushing;
an inner hexagonal hole is formed in the upper end of the conical adjusting pin, the inspection bushing can be extruded by adjusting the conical adjusting pin, and the purpose of adjusting the position of the inner hole in the upper end of the inspection bushing is achieved;
epoxy is injected between the conical adjustment pin and the check bushing for fixing the check bushing position.
The adjustable fixed inspection lining device for the position degree measuring tool has the preferred scheme that four conical adjusting pins are arranged.
The adjustable fixed inspection bushing device for the position degree measuring tool has the preferable scheme that the conical angle between the conical adjusting pin and the inspection bushing is not more than 10 degrees.
The adjustable fixed inspection lining device for the position degree measuring tool has the preferred scheme that the device is suitable for inspection linings made of three materials, namely CrWMn, T8A and Cr12 MoV.
The preferable scheme of the adjustable fixed inspection bushing device for the position degree measuring tool is that the coaxiality of the outer circle and the inner hole of the mounting seat is within phi 0.02mm, and the matching and pressing amount of the outer circle and the measuring hole is 0.005mm-0.01 mm;
the matching and pressing amount of the conical adjusting pin and the connecting pin is 0.005mm-0.01 mm;
the matching and pressing amount of the connecting pin and the inspection bush is 0.005mm-0.01 mm;
checking the coaxiality of the inner hole of the bushing and the outer conical surface to be within phi 0.02 mm;
the position degree of the corresponding hole on the measuring tool is not more than phi 0.03 mm.
A use method of an adjustable fixed inspection bushing device for a position degree measuring tool comprises the following steps:
the method comprises the following steps: before installation, cleaning each part, and then assembling;
step two: after the device is used for measuring corresponding holes, the inner hole of the bushing on the bushing is inspected, and preliminary adjustment is carried out on a boring machine to ensure that the position degree of the inner hole of the bushing is inspected within phi 0.03 m;
step three: firstly, the precise three-coordinate measuring machine actually measures the position degree of the inner hole of the bushing at the upper end of the checking bushing, finely adjusts the conical adjusting pin according to the measuring result, ensures that the position degree of the inner hole of the bushing at the upper end of the checking bushing is adjusted towards the direction of 0 as much as possible, rechecks the position degree of the inner hole of the bushing at the upper end of the checking bushing, if the out-of-tolerance phenomenon occurs, readjusts according to the steps, and carries out the next step if;
step four: the device is internally filled with epoxy resin, the position degree of an inner hole of a bushing at the upper end of the inspection bushing is checked again after 24 hours, if the out-of-tolerance phenomenon occurs, the device is pulled out through an ejection threaded hole in the end face of the mounting seat, and the steps are carried out again.
The working principle of the adjustable fixed checking bush device for the position degree measuring tool is as follows: when the conical adjusting pin moves downwards between units, the inspection bushing is pushed to deform slightly in the opposite horizontal direction, and the effective working length of the positioning hole at the upper end of the inspection bushing is 8-12 mm, and the movement amount is 0.02-0.03 mm, so that the verticality of the positioning hole at the upper end is slightly influenced. The inspection bush is extruded to generate micro deformation by adjusting the conical adjusting pin, so that the purpose of adjusting the position of the inner hole at the upper end of the inspection bush is achieved.
The invention has the beneficial effects that: the technical scheme of the invention solves the problem that the manufacturing precision of a large (including medium-sized) vertical fixed detection bushing position degree measuring tool in machining is not high, the machining thinking is that the adjustment precision tends to '0' by depending on the equipment precision steering adjustment, the manufacturing precision of the measuring tool is greatly improved, and when the measuring tool is used, after the detection hole at the upper end of the detection bushing is abraded, the device can be pulled out at any time through the ejection threaded hole for replacement, so that the special repair of the measuring tool is realized, and the device has great practical significance.
The device can ensure the use precision by adopting the domestic machining technology, has manufacturing feasibility, and can select the three-coordinate measuring machine with corresponding precision for adjustment on the premise of meeting the technical requirements.
Drawings
FIG. 1 is a cross-sectional view of an adjustable fixed test bushing assembly for a position measurement tool;
FIG. 2 is a top view of an adjustable fixed checking bushing assembly for a position measurement tool.
In the figure, 1-mounting seat, 2-conical adjusting pin, 3-connecting pin, 4-inspection bushing, 5-ejection threaded hole, 6-positioning hole, 7-detection hole and 8-internal hexagonal hole.
Detailed Description
An adjustable fixed inspection bushing device for a position degree measuring tool is characterized by comprising a mounting seat 1, a conical adjusting pin 2, a connecting pin 3 and an inspection bushing 4, wherein the mounting seat is provided with a conical adjusting pin;
the mounting seat 1 is cylindrical with a boss, the boss is a mounting edge, and an ejection threaded hole 5 is formed in the mounting edge;
a concave through hole with a wide upper part and a narrow lower part is arranged in the mounting seat 1, the lower end is provided with a positioning hole 6, and the upper end is provided with a detection hole 7;
the inspection bush 4 is arranged in the inspection hole 7;
the connecting pin 3 is inserted into the inner hole of the inspection bush 4 through the positioning hole 6 and used for fixing the inspection bush 4;
the conical adjusting pin 2 is arranged in the detection hole 7, one side of the conical adjusting pin is in line contact with the wall of the detection hole of the mounting seat 1, and the conical surface of the other side of the conical adjusting pin is in line contact with the conical surface of the detection bush 4;
the upper end of the conical adjusting pin 5 is provided with an inner hexagonal hole 8, the inspection bush 4 can be extruded by adjusting the conical adjusting pin 2, and the purpose of adjusting the position of the inner hole at the upper end of the inspection bush 4 is achieved;
epoxy is injected between the conical adjustment pin and the check bushing for fixing the position of the check bushing 4.
The conical adjusting pin 2 is provided with four pieces.
The conical angle of the conical adjustment pin 2 to the checking bush 4 is not more than 10 °.
The device is suitable for inspection bushings made of three materials, namely CrWMn, T8A and Cr12 MoV.
The coaxiality of the outer circle and the inner hole of the mounting seat 1 is within phi 0.02mm, and the matching and pressing amount of the outer circle and the measuring hole is 0.005mm-0.01 mm;
the matching and pressing amount of the conical adjusting pin 2 and the connecting pin is 0.005mm-0.01 mm;
the matching and pressing amount of the connecting pin 3 and the inspection bush 4 is 0.005mm-0.01 mm;
the coaxiality of the inner hole of the inspection bush 4 and the outer conical surface is within phi 0.02 mm;
the position degree of the corresponding hole on the measuring tool is not more than phi 0.03 mm.
A use method of an adjustable fixed inspection bushing device for a position degree measuring tool comprises the following steps:
the method comprises the following steps: before installation, cleaning each part, and then assembling;
step two: after the device is used for measuring corresponding holes, the inner hole of the bushing on the inspection bushing 4 is preliminarily adjusted on a boring mill, and the position degree of the inner hole of the inspection bushing 4 is ensured to be within phi 0.03 m;
step three: firstly, the precise three-coordinate measuring machine actually measures the position degree of the inner hole of the bushing at the upper end of the inspection bushing 4, finely adjusts the conical adjusting pin 2 according to the measuring result, ensures that the position degree of the inner hole of the bushing at the upper end of the inspection bushing 4 is adjusted towards the direction of 0 as much as possible, rechecks the position degree of the inner hole of the bushing at the upper end of the inspection bushing 4, readjusts according to the steps if the out-of-tolerance phenomenon occurs, and carries out the next step if the out-;
step four: the epoxy resin is injected into the device, the position degree of the inner hole of the bushing at the upper end of the inspection bushing 4 is checked again after 24 hours, if the out-of-tolerance phenomenon occurs, the device is pulled out through the ejection threaded hole 5 on the end face of the mounting seat 1, and the steps are carried out again.
The working principle of the adjustable fixed checking bush device for the position degree measuring tool is as follows: when the conical adjusting pin moves downwards between units, the inspection bushing is pushed to deform slightly in the opposite horizontal direction, and the effective working length of the positioning hole at the upper end of the inspection bushing is 8-12 mm, and the movement amount is 0.02-0.03 mm, so that the verticality of the positioning hole at the upper end is slightly influenced. The inspection bush is extruded to generate micro deformation by adjusting the conical adjusting pin, so that the purpose of adjusting the position of the inner hole at the upper end of the inspection bush is achieved.
Claims (6)
1. An adjustable fixed inspection bushing device for a position degree measuring tool is characterized by comprising a mounting seat, a conical adjusting pin, a connecting pin and an inspection bushing;
the mounting seat is cylindrical with a boss, the boss is a mounting edge, and an ejection threaded hole is formed in the mounting edge;
a concave through hole with a wide upper part and a narrow lower part is arranged in the mounting seat, the lower end of the mounting seat is provided with a positioning hole, and the upper end of the mounting seat is provided with a detection hole;
the inspection bush is arranged in the inspection hole;
the connecting pin is inserted into the inner hole of the inspection bushing through the positioning hole and used for fixing the inspection bushing;
the conical adjusting pin is arranged in the detection hole, one side of the conical adjusting pin is in line contact with the wall of the detection hole of the mounting seat, and the conical surface of the other side of the conical adjusting pin is in line contact with the conical surface of the detection bushing;
an inner hexagonal hole is formed in the upper end of the conical adjusting pin, the inspection bushing can be extruded by adjusting the conical adjusting pin, and the purpose of adjusting the position of the inner hole in the upper end of the inspection bushing is achieved;
epoxy is injected between the conical adjustment pin and the check bushing for fixing the check bushing position.
2. The adjustable fixed checking bush apparatus for position measuring tool as claimed in claim 1, wherein said conical adjusting pin is provided in four pieces.
3. The adjustable fixed test bushing assembly for a position measuring tool of claim 1, wherein said conical angle of said conical adjustment pin to said test bushing is no greater than 10 °.
4. The adjustable fixed checking bush device for the position degree measuring tool as claimed in claim 1, wherein the device is suitable for checking bushes of CrWMn, T8A and Cr12 MoV.
5. The adjustable fixed inspection bushing device for the position degree measuring tool according to claim 1, wherein the coaxiality of the outer circle and the inner hole of the mounting seat is within phi 0.02mm, and the matching and pressing amount of the outer circle and the inspection hole is 0.005mm-0.01 mm;
the matching and pressing amount of the conical adjusting pin and the connecting pin is 0.005mm-0.01 mm;
the matching and pressing amount of the connecting pin and the inspection bush is 0.005mm-0.01 mm;
checking the coaxiality of the inner hole of the bushing and the outer conical surface to be within phi 0.02 mm;
the position degree of the corresponding hole on the measuring tool is not more than phi 0.03 mm.
6. The use method of the adjustable fixed checking bush device for the position measuring tool according to claim 1 comprises the following steps:
the method comprises the following steps: before installation, cleaning each part, and then assembling;
step two: after the device is used for measuring corresponding holes, the inner hole of a bushing at the upper end of a bushing is detected, and preliminary adjustment is carried out on a boring machine to ensure that the position degree of the inner hole of the bushing is detected within phi 0.03 m;
step three: firstly, the precise three-coordinate measuring machine actually measures the position degree of the inner hole of the bushing at the upper end of the checking bushing, finely adjusts the conical adjusting pin according to the measuring result, ensures that the position degree of the inner hole of the bushing at the upper end of the checking bushing is adjusted towards the direction of 0 as much as possible, rechecks the position degree of the inner hole of the bushing at the upper end of the checking bushing, if the out-of-tolerance phenomenon occurs, readjusts according to the steps, and carries out the next step if;
step four: the device is internally filled with epoxy resin, the position degree of an inner hole of a bushing at the upper end of the inspection bushing is checked again after 24 hours, if the out-of-tolerance phenomenon occurs, the device is pulled out through an ejection threaded hole in the end face of the mounting seat, and the steps are carried out again.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811410282.7A CN109556485B (en) | 2018-11-23 | 2018-11-23 | Adjustable fixed inspection lining device for position degree measuring tool and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811410282.7A CN109556485B (en) | 2018-11-23 | 2018-11-23 | Adjustable fixed inspection lining device for position degree measuring tool and using method thereof |
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| CN109556485A CN109556485A (en) | 2019-04-02 |
| CN109556485B true CN109556485B (en) | 2020-07-31 |
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| JP4262281B2 (en) * | 2007-02-22 | 2009-05-13 | 新日本製鐵株式会社 | Coke oven wall evaluation apparatus, coke oven wall evaluation method, and computer program |
| CN201754073U (en) * | 2010-06-09 | 2011-03-02 | 上海汇众汽车制造有限公司 | Brake disc or brake drum assembly hole position checking tool |
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| CN202304669U (en) * | 2011-09-30 | 2012-07-04 | 中国南方航空工业(集团)有限公司 | Position accuracy detection apparatus of screwed hole |
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| CN105865299B (en) * | 2016-06-17 | 2019-01-25 | 常州华德机械有限公司 | Self-centering flange hole position check tool |
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