CN115247990B - Detection clamp and method for unlocking eccentricity of lock assembly - Google Patents
Detection clamp and method for unlocking eccentricity of lock assembly Download PDFInfo
- Publication number
- CN115247990B CN115247990B CN202210801217.7A CN202210801217A CN115247990B CN 115247990 B CN115247990 B CN 115247990B CN 202210801217 A CN202210801217 A CN 202210801217A CN 115247990 B CN115247990 B CN 115247990B
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- eccentricity
- unlocking
- lock assembly
- support
- nut
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- 238000001514 detection method Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000012360 testing method Methods 0.000 claims abstract description 11
- 238000007689 inspection Methods 0.000 claims abstract description 9
- 238000003825 pressing Methods 0.000 claims description 17
- 229910003460 diamond Inorganic materials 0.000 claims description 2
- 239000010432 diamond Substances 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 12
- 238000012545 processing Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000002360 preparation method 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
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/25—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
- G01B5/252—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes for measuring eccentricity, i.e. lateral shift between two parallel axes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention belongs to the technical field of positioning fixtures for unlocking eccentricity of lock components, and provides a detection fixture and method for the unlocking eccentricity of the lock components. The fixture is characterized in that two holes for core positioning are found in a complex assembly, the two holes and the plane of the assembly shell are utilized for positioning, meanwhile, a support is designed, the plane simulates the position of the center of a bolt required for measurement, then the position of a test block is controlled by utilizing a mode of combining a spring and a guide post, so that the test block abuts against the end face of a lock hook of the assembly, and the purpose of measuring unlocking eccentricity is realized by measuring the size of a gap between the end face of the support and the end face of the test block. According to the invention, through the positioning of the support and the inspection block, the opening of the lock hook and the center of the bolt required by unlocking eccentricity can be accurately converted into one position for measurement, and the space size is converted into one plane, so that the processing precision required by a drawing and the consistency of a measuring method are ensured.
Description
Technical Field
The invention relates to the technical field of positioning fixtures for unlocking eccentricity of lock assemblies, in particular to a detection fixture and method for the unlocking eccentricity of a lock assembly.
Background
Landing gear lock type assemblies (fig. 2) play a vital role in the retraction and the extension of the landing gear, and the accuracy of unlocking eccentricity directly influences whether the landing gear can be accurately extended or not. The assembly has more parts, complex structure and strict requirements on clearance and position precision among the parts. According to the design requirement, the size of the unlocking eccentricity is measured, if the requirement is not met, the locking hook stop block is filed to ensure the requirement, if the measurement is inaccurate, the filing quantity is wrong, the unlocking eccentricity is out of tolerance, and the realization of normal unlocking and locking actions of the lock assembly is possibly influenced.
The unlocking eccentricity measuring method still uses scribing measurement for many years before in actual processing, and has the following defects: 1. the reliable positioning surface is lacking, the position of the measurement point cannot be accurately obtained, and the measurement precision cannot be ensured; 2. the manual error and the equipment error of the scribing platform are larger because the scribing platform and the equipment are required to be used for measuring by workers; 3. the preparation time is long, the processing efficiency is affected, and the phenomena of delay in production cycle, reduced product quality, and even out-of-tolerance scrapping of components in mass production are directly caused, so that a better method is needed to solve the problems.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the invention relates to a clamp developed for measuring unlocking eccentricity of a lock assembly, which can be used for measuring the eccentricity of the lock assembly with similar structure. The fixture is characterized in that two holes for core positioning are found in a complex assembly, the two holes and the plane of the assembly shell are utilized for positioning, meanwhile, a support is designed, the plane simulates the position of the center of a bolt required for measurement, then the position of a test block is controlled by utilizing a mode of combining a spring and a guide post, so that the test block abuts against the end face of a lock hook of the assembly, and the purpose of measuring unlocking eccentricity is realized by measuring the size of a gap between the end face of the support and the end face of the test block.
In order to solve the technical problems, the invention adopts the following technical scheme: the detection fixture for the unlocking eccentricity of the lock assembly comprises a bottom plate 1, a support 2, a test block 3, a guide post 4, a base plate 5, a pressing plate 6, a common nut 7, a double-end stud 8, a bolt 9, a diamond-shaped positioning pin 10, a cylindrical pin 11, a screw 12, a spring 13, a special-shaped nut 14, a circular positioning pin 15 and a shoulder nut 16;
The bottom plate 1 is rectangular, and a backing plate 5 is arranged on the bottom plate through a cylindrical pin 11 and a screw 12; the backing plate 5 is provided with two positioning holes, the connecting line of the two positioning holes forms an angle of 84 degrees with the long side of the bottom plate 1, and the positioning holes are respectively provided with a diamond positioning pin 10 and a round positioning pin 15; a double-end stud 8 with a common nut 7 and a bolt 9 with the common nut 7 are sequentially arranged at one end of the bottom plate 1 close to the backing plate 5; the bolt 9 is close to the short side of the bottom plate 1, and the connecting line of the bolt 9 and the center of the stud 8 is parallel to the long side of the bottom plate 1; the stud 8 passes through the press plate 6 and is fixed by a shoulder nut 16; the other end of the bottom plate 1 is provided with a block-shaped support 2 through a cylindrical pin 11 and a screw 12; one end of the support 2 is provided with a concave hole, one end of the spring 13 is arranged in the concave hole, and the other end is contacted with the block-shaped test block 3; the inspection block 3 is provided with a through hole coaxial with the concave hole on the support 2; the guide post 4 sequentially passes through the through hole and the spring 13, one end of the guide post is fixed in the concave hole through the cylindrical pin 11, and the other end of the guide post is screwed and fixed through the special-shaped nut 14; the plane of the support 2 is aligned with the central plane of the bolt when the lock assembly 17 is eccentric, and one end of the support 2 is coaxial with the axis of the bolt when the lock assembly 17 is eccentric;
The relative positions of the diamond-shaped positioning pins 10 and the round positioning pins 15 correspond to the relative positions of positioning holes of the lock assembly 17, and when the lock assembly is installed, the two positioning holes of the lock assembly 17 are respectively installed on the diamond-shaped positioning pins 10 and the round positioning pins 15, and the bottom surface of the lock assembly 17 is attached to the plane of the backing plate 5; the working surface of the inspection block 3 is attached to the opening of the lock hook of the lock assembly 17; the gap between the measuring and checking block 3 and the support 2 measures the unlocking eccentricity.
A detection method for unlocking eccentricity of a lock assembly comprises the following steps:
step 1, assembling a detection clamp for unlocking eccentricity of a lock assembly;
Step 2, installing a lock assembly 17;
The shoulder nuts 16 of the pressing plates 6 are unscrewed, and the lock assembly 17 is installed in the diamond-shaped positioning pins 10 and the round positioning pins 15; pressing the pressing plate 6, screwing the shoulder nut 16, and finally, leaning the check block 3 against the opening of the lock hook of the lock assembly 17 through the special-shaped nut 14;
and 3, measuring unlocking eccentricity.
The beneficial effects of the invention are as follows: 1. two holes are positioned, so that the positioning size is more accurate, stable and reliable, the accuracy of measurement is improved, the detection accuracy of unlocking eccentricity of the whole clamp is greatly improved, the product quality is effectively ensured, the processing efficiency is improved, and the production period of the assembly is ensured. 2. The positioning of the support and the inspection block can accurately convert the opening of the lock hook and the center of the bolt required by unlocking eccentricity into one position for measurement, and convert the space size into one plane, so that the consistency of the processing precision and the measuring method required by the drawing is ensured, the operation is convenient, the positioning is reliable, the measurement is accurate, and the accurate guarantee of the gap and the position precision among all parts in the subsequent assembly is facilitated; 3. the clamp is convenient to manufacture, can be used for a long time, and realizes economy; 4. the fixture has a compact structure, is convenient to carry and use, and can further ensure the requirements of part machining precision and production progress.
Drawings
FIG. 1 (a) is a front view of a detection fixture for the unlocking eccentricity of a lock-type assembly;
FIG. 1 (b) is a top view of a detection fixture for the unlocking eccentricity of a lock-type assembly;
FIG. 2 is a block diagram of a lock-type assembly;
FIG. 3 (a) is an installation elevation view of the lock-type assembly;
Fig. 3 (b) is a top view of the lock assembly.
In the figure: 1. a bottom plate; 2. a support; 3. a test block; 4. a guide post; 5. a backing plate; 6. a pressing plate; 7. a common nut; 8. a double-ended stud; 9. a bolt; 10. a diamond-shaped locating pin; 11. a cylindrical pin; 12. a screw; 13. a spring; 14. a special-shaped nut; 15. a circular locating pin; 16. a shoulder nut; 17. a lock-type assembly.
Detailed Description
The installation and use method of the detection clamp for the unlocking eccentricity of the lock assembly comprises the following steps:
step 1.2 screws 12 and 2 cylindrical pins 11 are used for installing the backing plate 5 on the bottom plate 1;
step2, respectively installing a diamond-shaped positioning pin 10 and a round positioning pin 15 in two positioning holes of the backing plate 5;
step 3, screwing a common nut 7 on the stud 8, and mounting the stud 8 with the common nut 7 on one side of the bottom plate 1 close to the backing plate 5;
Step 4, screwing the common nut 7 on the bolt 9, mounting the bolt 9 with the common nut 7 beside the double-end stud 8 on the bottom plate 1, and attaching the bolt head of the bolt 9 to the bottom plate 1;
step 5, screwing a pressing plate 6 on the bolt 9, penetrating a pressing plate groove into the double-end stud 8, and arranging a shoulder nut 16 to facilitate the pressing of the pressing plate 6;
step 6, mounting the support 2 on the bottom plate 1 by using 2 screws 12 and 2 cylindrical pins 11 on the side, far away from the backing plate 5, of the bottom plate 1, and ensuring that the height plane of the support 2 is aligned with the bolt center plane of the lock assembly 17 during measurement;
step 7, installing a spring 13 on the guide post 4, installing the guide post 4 in a concave hole of the support 2, and fixing by using a cylindrical pin 11;
step 8, inserting the inspection block 3 on the guide post 4, and screwing the inspection block by using a special-shaped nut 14;
step 9, when the lock assembly 17 is installed, the shoulder nut 16 on the pressing plate 6 is unscrewed, the lock assembly 17 is installed in the diamond-shaped locating pin 10 and the round locating pin 15 of the clamp, the pressing plate 6 is pressed, the shoulder nut 16 is screwed, and finally the check block 3 is abutted against the opening of the lock hook of the assembly through the special-shaped nut 14;
step 10, after the part is installed, measuring unlocking eccentricity;
and 11, after the measurement is finished, unscrewing the shoulder nut 16, unscrewing the special-shaped nut 14, removing the pressing plate 6, and completing the disassembly of the parts.
Claims (2)
1. The detection clamp for the unlocking eccentricity of the lock assembly is characterized by comprising a bottom plate (1), a support (2), a detection block (3), a guide pillar (4), a base plate (5), a pressing plate (6), a common nut (7), a double-end stud (8), a bolt (9), a diamond-shaped locating pin (10), a cylindrical pin (11), a screw (12), a spring (13), a special-shaped nut (14), a round locating pin (15) and a shoulder nut (16);
The bottom plate (1) is rectangular, and a backing plate (5) is arranged on the bottom plate through a cylindrical pin (11) and a screw (12); the backing plate (5) is provided with two positioning holes, the connecting line of the two positioning holes and the long side of the bottom plate (1) form an angle of 84 degrees, and the positioning holes are respectively provided with a diamond positioning pin (10) and a round positioning pin (15); a double-end stud (8) with a common nut (7) and a bolt (9) with the common nut (7) are sequentially arranged at one end, close to the backing plate (5), of the bottom plate (1); the bolt (9) is close to the short side of the bottom plate (1), and the connecting line of the bolt and the center of the stud (8) is parallel to the long side of the bottom plate (1); the stud (8) passes through the pressing plate (6) and is fixed by a shoulder nut (16); the other end of the bottom plate (1) is provided with a block-shaped support (2) through a cylindrical pin (11) and a screw (12); one end of the support (2) is provided with a concave hole, one end of the spring (13) is arranged in the concave hole, and the other end is contacted with the block-shaped test block (3); the inspection block (3) is provided with a through hole coaxial with the concave hole on the support (2); the guide post (4) sequentially passes through the through hole and the spring (13), one end of the guide post is fixed in the concave hole through a cylindrical pin (11), and the other end of the guide post is screwed and fixed through a special-shaped nut (14); the height of the plane of the support (2) is aligned with the height of the central surface of the bolt when the unlocking eccentricity of the lock assembly (17) is measured, and one end of the support (2) is coaxial with the axis of the bolt when the unlocking eccentricity of the lock assembly (17) is measured;
The relative positions of the diamond-shaped locating pins (10) and the round locating pins (15) correspond to the relative positions of locating holes of the lock assembly (17), and when the lock assembly is installed, two locating holes of the lock assembly (17) are respectively installed on the diamond-shaped locating pins (10) and the round locating pins (15), and the bottom surface of the lock assembly (17) is attached to the plane of the base plate (5); the working surface of the inspection block (3) is attached to the opening of the lock hook of the lock assembly (17); and measuring the unlocking eccentricity by measuring the clearance between the test block (3) and the support (2).
2. A method for detecting unlocking eccentricity of a lock assembly by using the detecting fixture for unlocking eccentricity of a lock assembly according to claim 1, comprising the steps of:
step 1, assembling a detection clamp for unlocking eccentricity of a lock assembly;
Step 2, installing a lock assembly (17);
The shoulder nut (16) of the pressing plate (6) is unscrewed, and the lock assembly (17) is arranged in the diamond-shaped locating pin (10) and the round locating pin (15); pressing the pressing plate (6) and tightening the shoulder nut (16), and finally, leaning the check block (3) against the opening of the lock hook of the lock assembly (17) through the special-shaped nut (14);
step 3, measuring unlocking eccentricity; the unlocking eccentricity is measured by measuring the clearance between the inspection block (3) and the support (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210801217.7A CN115247990B (en) | 2022-07-07 | 2022-07-07 | Detection clamp and method for unlocking eccentricity of lock assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210801217.7A CN115247990B (en) | 2022-07-07 | 2022-07-07 | Detection clamp and method for unlocking eccentricity of lock assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115247990A CN115247990A (en) | 2022-10-28 |
| CN115247990B true CN115247990B (en) | 2024-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210801217.7A Active CN115247990B (en) | 2022-07-07 | 2022-07-07 | Detection clamp and method for unlocking eccentricity of lock assembly |
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| Country | Link |
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| CN (1) | CN115247990B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202329505U (en) * | 2011-11-09 | 2012-07-11 | 赵忠兴 | Position error inspection jig |
| CN106002421A (en) * | 2016-06-16 | 2016-10-12 | 沈阳飞机工业（集团）有限公司 | Special-shaped part turning fixture and application method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0034799A3 (en) * | 1980-02-22 | 1982-05-12 | Georg Fischer Aktiengesellschaft | Test device for disk wheels and/or rim parts |
| US7869060B2 (en) * | 2008-06-26 | 2011-01-11 | Mitutoyo Corporation | Jig for measuring an object shape and method for measuring a three-dimensional shape |
| TW201100749A (en) * | 2009-06-29 | 2011-01-01 | Mao-Chang Lin | Eccentricity measuring instrument |
| CN202903112U (en) * | 2012-11-26 | 2013-04-24 | 重庆美心翼申机械制造有限公司 | Testing fixture for detecting included angle between main shaft plane and eccentric plane of shaft parts |
| CN108613619A (en) * | 2018-04-19 | 2018-10-02 | 中信戴卡股份有限公司 | A kind of knuckle deflection cubing |
| CN208556083U (en) * | 2018-05-29 | 2019-03-01 | 沈阳飞机工业（集团）有限公司 | Support arm part deflection auricle hole machined and detection common fixture |
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2022
- 2022-07-07 CN CN202210801217.7A patent/CN115247990B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202329505U (en) * | 2011-11-09 | 2012-07-11 | 赵忠兴 | Position error inspection jig |
| CN106002421A (en) * | 2016-06-16 | 2016-10-12 | 沈阳飞机工业（集团）有限公司 | Special-shaped part turning fixture and application method thereof |
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| Publication number | Publication date |
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| CN115247990A (en) | 2022-10-28 |
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