CN108120411B - Radial force application device for annular part - Google Patents
Radial force application device for annular part Download PDFInfo
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- CN108120411B CN108120411B CN201711366117.1A CN201711366117A CN108120411B CN 108120411 B CN108120411 B CN 108120411B CN 201711366117 A CN201711366117 A CN 201711366117A CN 108120411 B CN108120411 B CN 108120411B
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- mandrel
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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
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/10—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters
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- A Measuring Device Byusing Mechanical Method (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a radial force application device for an annular part, which comprises a mandrel (6), wherein the left end of the mandrel (6) is in threaded connection with a pressure head (2), a bushing (3), a spring (19), a pointer (5) and a sleeve (8) are sequentially connected to the mandrel (6) from left to right, the sleeve (8) is connected with a support (4) through a blocking cover (7), and a first screw (9) capable of moving left and right is arranged on the right end face of the sleeve (8). The invention can apply force value in a certain range to the annular part in the radial direction, can accurately see the force application magnitude in the application process, has simple structure, is convenient for measurement, and improves the work efficiency of inspecting the part in the experimental site.
Description
Technical Field
The invention belongs to the technical field of aeroengine manufacturing, and particularly relates to a radial force application device for an annular part.
Background
The radial force-applying device for some type of annular part is shown in fig. 1 and 2, wherein the part is horizontally placed on the support block 311, and the left side and the lower side are blocked by the stop 314. Turning the screw 39 moves the plunger 36 to the left to compress the spring 319 and the sleeve 32 to the left due to the spring force applies force to the part and moves the pointer 35 together, tightening the screw 318 to lock the movement. Under the condition of keeping the force value, the measurement of the part can be realized, and the defects are as follows:
(1) when the diameter of the part is not changed any more, the spring is compressed, but the pointer cannot move to see the magnitude of the subsequent force application;
(2) because the sleeve 32 has no adjustability, when the diameter of the part changes, the sleeve 32 contacts the part to drive the pointer 35 to move together, so that the initial position indicated by the pointer is not the position of the 0 reticle, and the force application value is not the true value;
(3) because the pointer does not link with the spring together, the application of force frock can not realize exerting the pressure value in the certain limit to the part.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a radial force application device of annular part, radially exert the power value in the certain limit to annular part, the size of application of force can be accurately seen in the application, simple structure, the measurement of being convenient for improves the work efficiency of experiment on-the-spot inspection part.
The technical scheme of the invention is as follows:
the utility model provides a radial force application device of annular part, includes the base, is provided with two left branch pieces and the right branch piece that are parallel to each other on the base up end, and front end, the rear end of left branch piece and right branch piece respectively have a gland, and the gland passes through the cushion and links to each other with the base, and the left side of left branch piece is provided with left dog, and it is provided with the positive stop to just be located the gland front end between left branch piece and the right branch piece, and the right side of right branch piece is the support, be provided with the mandrel in the support mating holes, the left end and the pressure head threaded connection of mandrel, have connected gradually bush, spring, pointer and sleeve according to from left to right order on the mandrel on pressure head right side, be provided with the fourth screw on the support of bush top, be provided with the blanking cover between sleeve and the support, sleeve right-hand member.
And the bushing and the support are in interference fit.
The mandrel is a stepped shaft and comprises a first shaft section connected with the pressure head, a second shaft section matched with the bushing and a third shaft section matched with the spring, the pointer and the sleeve, an annular bulge is arranged between the second shaft section and the third shaft section, and the outer diameter of the second shaft section is larger than the first shaft section and the second shaft section.
The bushing and the second shaft section of the mandrel are in clearance fit, the sleeve and the third shaft section of the mandrel are in clearance fit, and the bushing, the second shaft section of the mandrel and the left end face of the support are aligned.
The sleeve is in clearance fit with the plug cover, and the plug cover is in interference fit with the support.
The first screw is in threaded connection with the support plate, an inner hole is formed in the end face of the first screw, and the first screw is coaxial with the mandrel.
The annular part radial force application device comprises two parts of part installation and force application devices:
first, part location portion:
the left supporting block and the right supporting block are fixed to the base through third screws, and the left stop block and the front stop block are fixed to the base through screws and pins after the positions of the left stop block and the front stop block are adjusted, so that the left stop block and the front stop block are used for stopping parts and preventing the parts from moving when force is applied; the cushion block and the gland are fixed to the base through the second screw and are symmetrically arranged on two sides of the left supporting block and the right supporting block, so that the part is prevented from popping out of the device when the force is applied to the part, and the installation part of the part is completed.
Second, force application device
The well adjusted support position is fixed on the base through bolt and pin, pack the bush into the support, the cooperation is the interference and keeps the terminal surface to flush, adorn the mandrel with spring and pointer on, pack into the bush again wholly, the mandrel and the bush cooperation are little clearance fit, keep fitting mandrel, the bush, the support terminal surface flushes and screws up the fourth screw, assemble sleeve and blanking cover through clearance fit in the periphery, then pack into the support in the lump through the blanking cover and keep the terminal surface laminating, blanking cover and support cooperation are interference fit, the cooperation between mandrel and the sleeve is clearance fit, it is fixed with the blanking cover to screw up the fifth screw at last. After assembly, the fourth screw is continuously kept in a screwed state, the distance from the pointer to the left end face of the support is adjusted, a 0N scribed line is carved before no force is applied, corresponding pressure is respectively applied to the right end face of the sleeve, corresponding pressure values and scribed lines are respectively carved at the positions to which the pointer moves, the pressure values of the corresponding scribed lines are respectively applied to the right end of the sleeve again for calibration, and the deviation between the position indicated by the pointer and the scribed line position is not greater than the preset deviation; the pressure head is screwed into the mandrel through the fine threads, the position relation of the end face of the pressure head to the reference surface is well adjusted, the core part of the whole force application device is completed, the support plate is finally adjusted to a corresponding position and fixed to the base through the screw, the first screw is screwed in through the threaded hole of the support plate, the inner hole face of the screw is attached to the right end face of the sleeve, the spring is enabled to be in a natural state and not to be compressed, and the whole radial force application device is completely completed.
The pressure head is screwed into the mandrel through threads, so that the adjustability of the pressure head is realized, the pressure head can be used for radial force application of different parts with similar diameters, the pointer moves leftwards from the 0-reticle position when force is applied due to the adjustability of the pressure head, and the indicated force value is also a true value; the spring, the pointer and the sleeve are installed on the mandrel together, the pointer is pushed by the sleeve to compress the spring, so that the pointer and the spring are linked, and a pressure value in a certain range is applied to a part; and the fourth screw is locked when a certain pressure is applied, so that the force application state is kept, and the diameter value of the part to be measured can be conveniently measured by an inspector.
Compared with the prior art, the invention has the following advantages or positive effects:
(1) when force is applied, the sleeve pushes the pointer to compress the spring to realize linkage, so that the magnitude of the applied force can be seen in real time;
(2) the pressure head can be adjusted through threads, the pressure head is adjusted to be in contact with the part before force is applied, the pressure value of the indicating position of the pointer applying force on the part is a real value, and the pointer is guaranteed to move leftwards from the 0N position;
(3) and when a corresponding pressure value is applied, the fourth screw is screwed, so that the stability of force application can be kept, and the diameter of the part to be measured can be conveniently measured by an inspector.
Drawings
FIG. 1 is a front view of a radial force application device for a conventional annular part;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a front view (cross-sectional view F-F in FIG. 4) of the radial force application device of the annular part of the present invention;
FIG. 4 is a top view of FIG. 3;
in the figure, 1-base 2-pressure head 3-bushing 4-support 5-pointer 6-mandrel 7-blanking cover 8-sleeve 9-first screw 10-support plate 11-1 left support 11-2 right support 12-gland 13-cushion block 14-1 left stop 14-2 front stop 15-pin 16-second screw 17-third screw 18-fourth screw 19-spring 20-fifth screw 31-base 32-sleeve 33-left blanking cover 34-support 35-pointer 36-pressure bar 37-right blanking cover 38-nut 39-screw 310-support plate 311-support block 312-blanking cover 313-cushion block 314-pin 316-screw 317-screw 319-spring 320-screw 321-screw.
Detailed Description
The technical scheme of the invention is further explained in detail with reference to the attached drawings, wherein the upper part, the lower part, the left part and the right part are based on the direction of the front view of the attached drawing 4.
As shown in figures 3 and 4, the annular part radial force application device comprises two parts of a part installation and force application device, a left support block 11-1 and a right support block 11-2 are fixed on a base 1 through a third screw 17, the coplanarity of the two support blocks is ensured, the flatness is less than a set value, the positions of a left stop block 14-1 and a front stop block 14-2 are adjusted, the support is fixed to the left side and the front side of the base 1 through screws and pins 15, the fact that the front side block is perpendicular to the left side block and the two blocks are smaller than a certain value is guaranteed, the four pressing covers 12 and the cushion blocks 13 are fixed to the base 1 through second screws 16, the distance between the pressing covers 12 and the two blocks is adjusted, the distance from the center of a matching hole of the support 4 to a supporting surface of the right block 11-2 and the distance from the center of a matching hole of the support 4 to the front block 14-2 and the distance from the left end surface to the left block 14-1 are adjusted, and then the support 4 is fixed to the base 1 through the screws. The mandrel 6 is a stepped shaft and comprises a first shaft section connected with the pressure head 2, a second shaft section matched with the bush 3 and a third shaft section matched with the spring 19, the pointer 5 and the sleeve 8, the bush 3 is installed in the support 4, the end faces of the bush 3 are kept flush, the bush 3 is in interference fit, the spring 19 and the pointer 5 are installed on the mandrel 6 and integrally installed in the bush 3, the small clearance fit is formed between the mandrel 6 and the bush 3, the left end faces of the bush 3, the bush 4 and the support 6 are kept flush, the fourth screw 18 is screwed, the sleeve 8 and the plugging cover 7 are assembled on the periphery in clearance fit, then the plugging cover 7 is installed in the support 4 together, the end faces of the plugging cover 7 and the support 4 are in interference fit, the clearance fit is formed between the mandrel 6 and the sleeve 8, and finally the fifth screw 20 is screwed to fix the plugging cover 7; after assembly, the fourth screw 18 keeps a screwed state continuously, the distance from the pointer 5 to the left end face of the support 4 is adjusted, the spring 19 is in a free state, 0N scribed lines are carved before force is not applied, different forces are respectively applied to the right end face of the sleeve 8, corresponding pressure values and scribed lines are respectively carved according to the positions to which the pointer 5 moves, the pressure values of the corresponding scribed lines are respectively applied to the right end of the sleeve 5 again for calibration, and the deviation between the positions indicated by the pointer 5 and the scribed lines is not greater than a preset value; the pressure head 2 is screwed into a first shaft section on the mandrel 6 through fine threads, the position relation of the left end face of the pressure head 2 to a left support block 11-1, a right support block 11-2, a left stop block 14-1 and a front stop block 14-2 is well adjusted, the whole force application tool core part is completely installed, finally, a support plate 10 is adjusted to be in a corresponding position and is fixed to the base 1 through screws, and a first screw 9 is screwed into a threaded hole of the support plate 10 to enable the inner hole face of the screw to be attached to the right end face of the sleeve 8 (namely, an overhanging section end face with a diameter smaller than that of a main body of the sleeve 8 in the figure 3 is similar to a screw head), so that the whole annular part radial force application tool is completely installed.
During the use, keep bush 3, support 4, mandrel 6 second shaft section cooperation left end face flushes, and fourth screw 18 is in the state of screwing up, adjust pressure head 2 and part contact and loosen fourth screw 18 again, it carries out the application of force to the part promptly to twist screw 9, because the adjustability of pressure head 2 can realize the radial application of force to different diameter annular parts, pin fourth screw 18 and can keep application of force stability when applying different power values and be convenient for the measurement of inspection personnel to the diameter, pointer 5 and spring 19's linkage has been realized through pointer compression spring 19 during the application of force, compression spring 19 when thoroughly having solved the different unreal and the part size of application of force value of diameter when, pointer 5 is not along with a series of problems of spring 19 linkage.
Claims (5)
1. The utility model provides a radial force application device of annular part, including base (1), be provided with two left piece (11-1) and right piece (11-2) that are parallel to each other on base (1) the up end, the front end of left piece (11-1) and right piece (11-2), rear end respectively has a gland (12), gland (12) link to each other with base (1) through cushion (13), the left side of left piece (11-1) is provided with left dog (14-1), it is provided with front dog (14-2) just to be located gland (12) front end between left piece (11-1) and the right piece (11-2), the right side of right piece (11-2) is support (4), its characterized in that: a mandrel (6) is arranged in a matching hole of the support (4), the mandrel (6) is a stepped shaft and comprises a first shaft section connected with the pressure head (2), a second shaft section matched with the bushing (3) and a third shaft section matched with the spring (19), the pointer (5) and the sleeve (8), an annular bulge is arranged between the second shaft section and the third shaft section, the outer diameter of the second shaft section is larger than the first shaft section and the second shaft section, the left end of the mandrel (6) is in threaded connection with the pressure head (2), the bushing (3), the spring (19), the pointer (5) and the sleeve (8) are sequentially connected on the mandrel (6) on the right side of the pressure head (2) from left to right, a fourth screw (18) is arranged on the support (4) above the bushing (3), a blocking cover (7) is arranged between the sleeve (8) and the support (4), and a first screw (9) is arranged on the right end face of the sleeve (, the first screw (9) is connected with the base (1) through a support plate (10).
2. The radial force application device of an annular part as claimed in claim 1, wherein: and the bushing (3) and the support (4) are in interference fit.
3. The radial force application device of an annular part as claimed in claim 1, wherein: the bush (3) and the second shaft section of the mandrel (6) are in clearance fit, the sleeve (8) and the third shaft section of the mandrel (6) are in clearance fit, and the bush (3), the second shaft section of the mandrel (6) and the left end face of the support (4) are aligned.
4. The radial force application device of an annular part as claimed in claim 1, wherein: the sleeve (8) is in clearance fit with the plug cover (7), and the plug cover (7) is in interference fit with the support (4).
5. The radial force application device of an annular part as claimed in claim 1, wherein: the first screw (9) is in threaded connection with the support plate (10), an inner hole is formed in the end face of the first screw (9), and the first screw (9) is coaxial with the mandrel (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711366117.1A CN108120411B (en) | 2017-12-18 | 2017-12-18 | Radial force application device for annular part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711366117.1A CN108120411B (en) | 2017-12-18 | 2017-12-18 | Radial force application device for annular part |
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| Publication Number | Publication Date |
|---|---|
| CN108120411A CN108120411A (en) | 2018-06-05 |
| CN108120411B true CN108120411B (en) | 2020-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711366117.1A Active CN108120411B (en) | 2017-12-18 | 2017-12-18 | Radial force application device for annular part |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112113758B (en) * | 2020-09-24 | 2023-03-03 | 中国航发贵州黎阳航空动力有限公司 | Device and method for testing radial load of split snap ring |
| CN112504531B (en) * | 2020-11-19 | 2022-03-08 | 中国航发沈阳黎明航空发动机有限责任公司 | Adjustable force application device of binary vector spray pipe |
| CN113477820A (en) * | 2021-07-29 | 2021-10-08 | 中国航发贵州黎阳航空动力有限公司 | Annular part thermal expansion correction tool and correction method |
| CN114353635A (en) * | 2021-10-29 | 2022-04-15 | 中国航发西安动力控制科技有限公司 | Device and method for measuring gap between non-full-circle arc surfaces in force application state |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0315575A1 (en) * | 1987-09-18 | 1989-05-10 | H. Wohlenberg KG GmbH & Co. | Process and measuring apparatus for the determination of roll diameters |
| US7752726B2 (en) * | 2005-11-30 | 2010-07-13 | General Electric Company | Fixture and inspection method for an annular seal |
| FR2985306B1 (en) * | 2011-12-29 | 2018-06-15 | Vallourec Oil And Gas France | DEVICE FOR MEASURING AN INTERNAL OR EXTERNAL PROFILE OF A TUBULAR COMPONENT |
| CN103048134B (en) * | 2012-12-14 | 2015-06-17 | 瓦房店轴承集团有限责任公司 | Automobile hub bearing working condition simulation tester with buffer loading device |
| CN103234429A (en) * | 2013-04-19 | 2013-08-07 | 上海海洋大学 | Radial play measuring instrument for horizontal bearing |
| CN204346316U (en) * | 2015-01-10 | 2015-05-20 | 杭州亚恒汽车零部件有限公司 | Hub spindle socket end jumps detector |
| CN205027331U (en) * | 2015-10-08 | 2016-02-10 | 恒本机械工业（昆山）有限公司 | Auto steering repacking utensil |
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| CN108120411A (en) | 2018-06-05 |
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