CN109405707B - Device for detecting pipe sleeve sealing line position by micrometer - Google Patents
Device for detecting pipe sleeve sealing line position by micrometer Download PDFInfo
- Publication number
- CN109405707B CN109405707B CN201811362296.6A CN201811362296A CN109405707B CN 109405707 B CN109405707 B CN 109405707B CN 201811362296 A CN201811362296 A CN 201811362296A CN 109405707 B CN109405707 B CN 109405707B
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- 238000007789 sealing Methods 0.000 title claims abstract description 41
- 238000009987 spinning Methods 0.000 claims abstract description 9
- 230000007704 transition Effects 0.000 claims description 6
- 238000005259 measurement Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
-
- 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
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
A device for detecting the position of a pipe sleeve sealing line by using a micrometer is provided with a workpiece positioning and clamping mechanism and a measurement executing mechanism; the workpiece positioning and clamping mechanism comprises a left clamping sleeve, a right clamping sleeve, a positioning reference assembly, a push rod, a fixed sleeve and a spinning assembly, wherein the left clamping sleeve is assembled with the right clamping sleeve through a threaded structure, one end of the positioning reference assembly is provided with an inner conical surface consistent with a standard conical surface sealing tube joint, the other end of the positioning reference assembly is contacted with the tail end of the push rod, the push rod is arranged in the fixed sleeve and is assembled with the fixed sleeve in a threaded connection mode, and the spinning assembly is assembled at the other end of the push rod; the measuring executing mechanism comprises a measuring head and a scale sleeve, the measuring head is assembled with the fixed sleeve, the scale sleeve is sleeved outside the fixed sleeve and is assembled with the fixed sleeve in a threaded connection mode, one end of the scale sleeve is contacted with the measuring head, and the measuring head can be driven to move left and right through rotating the scale sleeve. The invention realizes accurate measurement of the P value of the pipe sleeve part, and achieves the aims of reducing the rejection rate and the production cost of the pipe sleeve part.
Description
Technical Field
The invention relates to a detection device, in particular to a device for detecting the position of a sealing line of a pipe sleeve by using a micrometer, and belongs to the technical field of testing and measuring.
Background
As shown in figure 1, a pipe sleeve part 1 applied to a hydraulic pipeline of precision instruments and equipment is provided with an outer arc surface at the end part, and after the pipe sleeve part 1 is assembled with a conical surface seal pipe joint, a sealing line X between the outer arc surface of the pipe sleeve and the inner conical surface of the pipe joint is formed at a position with a distance P between the pipe sleeve part 1 and a stepped end surface 1-1 of the pipe sleeve part 1. Because the oil pressure in the hydraulic pipeline of the precision instrument is higher, the pipe sleeve part 1 is generally made of high-strength alloy steel, and meanwhile, in order to ensure the matching relation between the pipe sleeve part 1 and the conical surface sealing pipe joint, according to related technical requirements, the P value of the pipe sleeve part 1 is a key control size, and the tolerance range of the P value is-0.12 to +0.12, so that the P value of the pipe sleeve part 1 needs to be detected before the pipe sleeve part 1 and the conical surface sealing pipe joint are assembled.
In the prior art, aiming at the detection problem of the P value of the pipe sleeve part, the position of the sealing line X between the outer arc surface of the pipe sleeve and the inner conical surface of the pipe joint is difficult to accurately position by adopting a traditional measurement mode, and the pipe sleeve part can only be qualitatively judged whether to meet the requirement by adopting a conventional no-go light transmittance test method.
Disclosure of Invention
The invention provides a device for detecting the position of a pipe sleeve sealing line by using a micrometer, which aims to achieve the purposes of reducing the rejection rate and the production cost of pipe sleeve parts by accurately measuring the P value of the pipe sleeve parts.
In order to achieve the above purpose, the invention adopts the following technical scheme:
A device for detecting the position of a pipe sleeve sealing line by using a micrometer is provided with a workpiece positioning and clamping mechanism and a measurement executing mechanism; the workpiece positioning and clamping mechanism comprises a left clamping sleeve, a right clamping sleeve, a positioning reference assembly, a push rod, a fixed sleeve and a spinning assembly, wherein the left clamping sleeve is sleeved outside a detected pipe sleeve part and is assembled with the right clamping sleeve through a threaded connection structure; the measuring executing mechanism comprises a measuring head and a scale sleeve, the measuring head is assembled with the fixed sleeve, the scale sleeve is sleeved outside the fixed sleeve and is assembled with the fixed sleeve in a right-handed threaded connection mode, one end of the scale sleeve is contacted with the measuring head, and the measuring head can be driven to move left and right through rotating the scale sleeve.
According to the device for detecting the position of the sealing line of the pipe sleeve by using the micrometer, the measuring head is provided with the measuring part and the driving part, the measuring part is a group of measuring feet extending axially, the driving part is of a disc-shaped structure, and one end of the driving part is provided with the annular groove matched with the scale sleeve; a group of axially extending slots are formed in the matching part of the fixing sleeve and the measuring head, and measuring feet of the measuring head penetrate into the slots.
According to the device for detecting the position of the sealing line of the pipe sleeve by using the micrometer, the number of the grooves on the measuring foot and the fixed sleeve of the measuring head is four.
According to the device for detecting the position of the sealing line of the pipe sleeve by the micrometer, the fixing sleeve and the right clamping sleeve are fixedly assembled by the first screw, and the threaded hole is formed in the fixing sleeve.
According to the device for detecting the position of the sealing line of the pipe sleeve by the micrometer, the positioning reference assembly consists of the positioning reference piece and the jacking piece, the positioning reference piece is sleeved with the jacking piece, and the positioning reference piece is contacted with the ejector rod through the arc-shaped surface of the end head of the jacking piece.
According to the device for detecting the position of the sealing line of the pipe sleeve by using the micrometer, the tail end of the ejector rod is provided with the step transition surface, and the buffer spring is arranged between the positioning reference component and the step transition surface of the ejector rod.
According to the device for detecting the position of the sealing line of the pipe sleeve by using the micrometer, the screw sleeve is sleeved outside the fixed sleeve, and the screw sleeve and the fixed sleeve are assembled in a threaded connection mode and are locked and fixed by the second screw.
The device for detecting the position of the sealing line of the pipe sleeve by using the micrometer is characterized in that the outer cylindrical surface of the scale sleeve is provided with the size scale, and the outer cylindrical surface of the measuring head driving part is provided with the pointing mark matched with the size scale.
According to the device for detecting the position of the sealing line of the pipe sleeve by using the micrometer, the reset spring is arranged between the measuring head driving part and the right clamping sleeve.
According to the device for detecting the position of the sealing line of the pipe sleeve by using the micrometer, the left-handed thread matching structure is arranged between the scale sleeve and the measuring head driving part.
When the device for detecting the position of the sealing line of the pipe sleeve by using the micrometer is used for detecting the P value of the pipe sleeve part, firstly, a detected workpiece is positioned by the left cutting sleeve, then, the spinning assembly pushes the ejector rod to move towards the workpiece, the workpiece is tightly pushed by the positioning reference assembly, the sealing line X is formed between the outer arc surface of the pipe sleeve workpiece and the inner conical surface of the positioning reference assembly, then, the measuring head is driven to move leftwards by rotating the scale sleeve, when the measuring head moves to the limit position of the left end, the numerical value indicated by the pointing mark on the outer cylindrical surface of the driving part of the measuring head is read, the numerical value is the deviation of the P value, if the numerical value is within the range of-0.12 to +0.12, the detected workpiece is judged to be qualified, and if the numerical value is not within the range of-0.12 to +0.12, the detected workpiece is judged to be unqualified. Therefore, the invention achieves the purpose of reducing the rejection rate and the production cost of the pipe sleeve part by accurately measuring the P value of the pipe sleeve part.
Drawings
FIG. 1 is a schematic illustration of the construction of a pipe sleeve part;
FIG. 2 is a schematic diagram of a device for detecting the position of a sealing line of a pipe sleeve by using a micrometer according to the invention;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a schematic view of the cross-sectional structure A-A of FIG. 2;
FIG. 5 is a schematic view of a positioning datum assembly;
FIG. 6 is a schematic diagram of a measuring head structure;
FIG. 7 is a schematic view of the cross-sectional structure B-B in FIG. 6;
FIG. 8 is a schematic view of a retaining sleeve structure;
FIG. 9 is a schematic view of the cross-sectional structure C-C of FIG. 8;
FIG. 10 is a schematic diagram of the working principle of the first embodiment of the present invention;
FIG. 11 is a schematic view of the structure of a second embodiment of the present invention;
fig. 12 is a schematic diagram of the working principle of the second embodiment of the present invention.
The list of the reference numerals in the drawings is: 1. the device comprises a pipe sleeve part, 1-1, a stepped end face, 2, a left clamping sleeve, 3, a measuring head, 3-1, a measuring part, 3-2, a driving part, 3-3, an annular groove, 4, a positioning reference component, 4-1, a positioning reference component, 4-2, a jacking component, 5, a buffer spring, 6, a first screw, 7, a right clamping sleeve, 8, a scale sleeve, 9, a fixed sleeve, 9-1, a notch, 9-2, a threaded hole, 10, a threaded sleeve, 11, a second screw, 12, a push rod, 13, a spinning component, 14 and a reset spring.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific examples.
Referring to fig. 2 and 3, the device for detecting the position of a sealing line of a pipe sleeve by using a micrometer is provided with a workpiece positioning and clamping mechanism and a measuring executing mechanism; the workpiece positioning and clamping mechanism comprises a left clamping sleeve 2, a right clamping sleeve 7, a positioning reference assembly 4, a push rod 12, a fixed sleeve 9 and a spinning assembly 13, wherein the left clamping sleeve 2 is sleeved outside a detected pipe sleeve part 1 and is assembled with the right clamping sleeve 7 through a threaded connection structure, one end of the positioning reference assembly 4 is provided with an inner conical surface consistent with a standard conical surface sealing pipe joint, after a detected workpiece is clamped, the inner conical surface of the positioning reference assembly 4 and the outer arc surface of the end part of the detected workpiece form a sealing line X, the other end of the positioning reference assembly 4 is contacted with the tail end of the push rod 12, the push rod 12 is arranged in the fixed sleeve 9, the push rod 12 is assembled with the fixed sleeve 9 in a threaded connection mode, and the spinning assembly 13 is assembled at the other end of the push rod 12; the measuring actuator comprises a measuring head 3 and a scale sleeve 8, the measuring head 3 is assembled with a fixed sleeve 9, the scale sleeve 8 is sleeved outside the fixed sleeve 9, the scale sleeve 8 is assembled with the fixed sleeve 9 in a right-handed threaded connection mode, one end of the scale sleeve 8 is contacted with the measuring head 3, and the measuring head 3 can be driven to move left and right by rotating the scale sleeve 8.
Referring to fig. 2,6 and 7, in the device 2 for detecting the position of a sealing line of a pipe sleeve by using a micrometer according to the present invention, the measuring head 3 is provided with a measuring part 3-1 and a driving part 3-2, the measuring part 3-1 is a group of measuring feet extending axially, the driving part 3-2 is in a disc-shaped structure, one end of the driving part 3-2 is provided with an annular groove 3-3 matched with the scale sleeve 8, and in order to ensure that a workpiece can be smoothly assembled and disassembled after the detection is completed, the first embodiment of the present invention is as follows: a return spring 14 is arranged between the drive part 3-2 of the measuring head 3 and the right ferrule 7.
Referring to fig. 2, 4,6, 7, 8 and 9, in the device 2 for detecting the position of a sealing line of a pipe sleeve by using a micrometer according to the invention, a group of axially extending slots 9-1 are formed at the matching part of the fixed sleeve 9 and the measuring head, and the measuring feet of the measuring head 3 penetrate into the slots 9-1; the number of the measuring feet of the measuring head 3 and the slots 9-1 on the fixed sleeve 9 is four; the fixing sleeve 9 is fixedly assembled with the right clamping sleeve 7 through the first screw 6, and the threaded hole 9-2 is formed in the fixing sleeve 9.
Referring to fig. 2 and 5, in the device for detecting the position of the sealing line of the pipe sleeve by using the micrometer, the positioning reference assembly 4 consists of a positioning reference piece 4-1 and a propping piece 4-2, wherein the positioning reference piece 4-1 is sleeved with the propping piece 4-2, and is contacted with the ejector rod 12 through the arc surface at the end of the propping piece 4-2.
Referring to fig. 2, in the device for detecting the position of the sealing line of the pipe sleeve by using the micrometer according to the invention, a step transition surface is arranged at the tail end of the ejector rod 12, and a buffer spring 5 is arranged between the positioning reference assembly 4 and the step transition surface of the ejector rod 12; the screw sleeve 10 is sleeved outside the fixed sleeve 9, and the screw sleeve 10 is assembled with the fixed sleeve 9 in a threaded connection mode and is locked and fixed through the second screw 11.
Referring to fig. 3, in the device for detecting the position of the sealing line of the pipe sleeve by using the micrometer according to the present invention, the outer cylindrical surface of the scale sleeve 8 is provided with a size scale, and the outer cylindrical surface of the driving part 3-2 of the measuring head 3 is provided with a pointing mark matched with the size scale.
Referring to fig. 11 and 12, in order to ensure that the workpiece can be smoothly disassembled and assembled after the detection, a second embodiment of the device for detecting the position of the sealing line of the pipe sleeve by using the micrometer according to the present invention is as follows: a left-handed thread matching structure is arranged between the scale sleeve 8 and the driving part 3-2 of the measuring head 3.
Referring to fig. 1 to 10, the device for detecting the position of a sealing line of a pipe sleeve by using a micrometer according to the present invention, wherein the size scale on the outer cylindrical surface of the scale sleeve is determined by the following method: firstly, calibrating an O point position line, taking a standard pipe sleeve sample piece, clamping and positioning a standard workpiece by a workpiece positioning and clamping mechanism, then rotating a scale sleeve 8, driving a measuring head 3 to move leftwards, and when the measuring head 3 moves to a left end limit position, pointing to a position corresponding to a mark on the outer cylindrical surface of a driving part 3-2 of the measuring head 3 to obtain a size scale 0 line; secondly, taking a pipe sleeve workpiece with the P value dimension deviation of-0.12, clamping and positioning the pipe sleeve workpiece by a workpiece positioning and clamping mechanism, then rotating a scale sleeve 8, driving a measuring head 3 to move leftwards, and when the measuring head 3 moves to the left end limit position, pointing to a position corresponding to a mark on the outer cylindrical surface of a driving part 3-2 of the measuring head 3 to obtain a dimension scale of-0.12; thirdly, taking a pipe sleeve workpiece with the P value dimension deviation of +0.12, clamping and positioning the pipe sleeve workpiece by a workpiece positioning and clamping mechanism, then rotating a scale sleeve 8, driving a measuring head 3 to move leftwards, and when the measuring head 3 moves to the left end limit position, pointing to the position corresponding to the mark on the outer cylindrical surface of a driving part 3-2 of the measuring head 3, namely, obtaining a dimension scale +0.12 line; and fourthly, equally dividing the distances between the 0 line and the-0.12 line and between the 0.12 line by a plurality of equal parts, and identifying corresponding numerical values. When the device for detecting the position of the pipe sleeve sealing line by using the micrometer is used for detecting the P value of the pipe sleeve part 1, a detected workpiece can be clamped and positioned by the workpiece positioning and clamping mechanism, then the measuring head 3 is driven to move leftwards by rotating the scale sleeve 8, when the measuring head 3 moves to the left end limit position, the numerical value indicated by the pointing mark on the outer cylindrical surface of the driving part 3-2 of the measuring head 3 is read, the numerical value is the deviation of the P value, if the numerical value is within the range of-0.12 to +0.12, the detected workpiece is judged to be qualified, and if the numerical value is not within the range of-0.12 to +0.12, the detected workpiece is judged to be unqualified.
Claims (5)
1. A device for detecting the position of a pipe sleeve sealing line by using a micrometer is characterized in that the device is provided with a workpiece positioning and clamping mechanism and a measuring executing mechanism; the workpiece positioning and clamping mechanism comprises a left clamping sleeve (2), a right clamping sleeve (7), a positioning reference assembly (4), a push rod (12), a fixed sleeve (9) and a spinning assembly (13), wherein the left clamping sleeve (2) is sleeved outside a detected pipe sleeve part (1) and is assembled with the right clamping sleeve (7) through a threaded connection structure, one end of the positioning reference assembly (4) is provided with an inner conical surface consistent with a standard conical surface sealing pipe joint, after a detected workpiece is clamped, the inner conical surface of the positioning reference assembly (4) and the outer arc surface of the end part of the detected workpiece form a sealing line X, the other end of the positioning reference assembly (4) is contacted with the tail end of the push rod (12), the push rod (12) is arranged in the fixed sleeve (9), the push rod (12) is assembled with the fixed sleeve (9) in a threaded connection mode, and the spinning assembly (13) is assembled at the other end of the push rod (12); the measuring executing mechanism comprises a measuring head (3) and a scale sleeve (8), wherein the measuring head (3) is assembled with the fixed sleeve (9), the scale sleeve (8) is sleeved outside the fixed sleeve (9), the scale sleeve (8) is assembled with the fixed sleeve (9) in a threaded connection mode, one end of the scale sleeve (8) is contacted with the measuring head (3), and the measuring head (3) can be driven to move left and right by rotating the scale sleeve (8);
The measuring head (3) is provided with a measuring part (3-1) and a driving part (3-2), the measuring part (3-1) is a group of measuring feet extending axially, the driving part (3-2) is of a disc-shaped structure, and one end of the driving part (3-2) is provided with an annular groove (3-3) matched with the scale sleeve (8); a group of axially extending slots (9-1) are formed in the matching part of the fixed sleeve (9) and the measuring head, and measuring feet of the measuring head (3) penetrate into the slots (9-1);
The positioning reference assembly (4) consists of a positioning reference piece (4-1) and a jacking piece (4-2), wherein the positioning reference piece (4-1) is sleeved with the jacking piece (4-2) and is contacted with the ejector rod (12) through an arc surface at the end of the jacking piece (4-2);
a step transition surface is arranged at the tail end of the ejector rod (12), and a buffer spring (5) is arranged between the positioning reference assembly (4) and the step transition surface of the ejector rod (12);
a reset spring (14) is arranged between the driving part (3-2) of the measuring head (3) and the right clamping sleeve (7);
a left-handed thread matching structure is arranged between the scale sleeve (8) and the driving part (3-2) of the measuring head (3).
2. The device for detecting the position of the sealing line of the pipe sleeve by using the micrometer according to claim 1, wherein the number of the measuring feet of the measuring head (3) and the number of the grooves (9-1) on the fixing sleeve (9) are four.
3. The device for detecting the position of the sealing line of the pipe sleeve by using the micrometer according to claim 1, wherein the fixing sleeve (9) is fixedly assembled with the right clamping sleeve (7) through the first screw (6), and the threaded hole (9-2) is arranged on the fixing sleeve (9).
4. A device for detecting the position of a sealing line of a pipe sleeve by a micrometer according to claim 3, wherein a screw sleeve (10) is sleeved outside the fixed sleeve (9), and the screw sleeve (10) is assembled with the fixed sleeve (9) in a threaded connection mode and locked and fixed by a second screw (11).
5. The device for detecting the position of the sealing line of the pipe sleeve by using the micrometer according to claim 4, wherein the outer cylindrical surface of the scale sleeve (8) is provided with a size scale, and the outer cylindrical surface of the driving part (3-2) of the measuring head (3) is provided with a pointing mark matched with the size scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811362296.6A CN109405707B (en) | 2018-11-15 | 2018-11-15 | Device for detecting pipe sleeve sealing line position by micrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811362296.6A CN109405707B (en) | 2018-11-15 | 2018-11-15 | Device for detecting pipe sleeve sealing line position by micrometer |
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| Publication Number | Publication Date |
|---|---|
| CN109405707A CN109405707A (en) | 2019-03-01 |
| CN109405707B true CN109405707B (en) | 2024-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811362296.6A Active CN109405707B (en) | 2018-11-15 | 2018-11-15 | Device for detecting pipe sleeve sealing line position by micrometer |
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| CN (1) | CN109405707B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567343A (en) * | 2019-09-27 | 2019-12-13 | 内蒙古第一机械集团股份有限公司 | Distance measuring method |
| CN112945157B (en) * | 2019-12-11 | 2023-02-24 | 中国航发商用航空发动机有限责任公司 | Measuring device and measuring method for parts in deep hole |
| CN111707164B (en) * | 2020-06-01 | 2021-10-08 | 南京瑞杜新材料科技有限公司 | Precision measurement contrast device for front and rear sizes of sapphire during cutting |
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| CN107202528A (en) * | 2017-06-26 | 2017-09-26 | 中国人民解放军第五七二工厂 | A kind of flareless pipe joint termination dimension measuring device |
| CN209399891U (en) * | 2018-11-15 | 2019-09-17 | 中国人民解放军第五七二一工厂 | A kind of device with micrometer detection pipe sleeve seal line position |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB762244A (en) * | 1953-07-30 | 1956-11-28 | Sheffield Corp | Improvements in or relating to gauge for threads |
| US5038600A (en) * | 1989-11-20 | 1991-08-13 | Military Standards Corporation | Gage and method for measuring the X-dimension of hydraulic tube fittings |
| CN201561717U (en) * | 2009-12-28 | 2010-08-25 | 天津欧波精密仪器股份有限公司 | Special testing equipment for axial relative size of step shaft |
| CN201964853U (en) * | 2010-12-02 | 2011-09-07 | 贵州航太精密制造有限公司 | Measuring device for sealing inner conical surface of tube union |
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2018
- 2018-11-15 CN CN201811362296.6A patent/CN109405707B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202528A (en) * | 2017-06-26 | 2017-09-26 | 中国人民解放军第五七二工厂 | A kind of flareless pipe joint termination dimension measuring device |
| CN209399891U (en) * | 2018-11-15 | 2019-09-17 | 中国人民解放军第五七二一工厂 | A kind of device with micrometer detection pipe sleeve seal line position |
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