CN108896257A - It is a kind of multi-functional without interconnecting piece flexural pivot test tool - Google Patents
It is a kind of multi-functional without interconnecting piece flexural pivot test tool Download PDFInfo
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- CN108896257A CN108896257A CN201810899974.6A CN201810899974A CN108896257A CN 108896257 A CN108896257 A CN 108896257A CN 201810899974 A CN201810899974 A CN 201810899974A CN 108896257 A CN108896257 A CN 108896257A
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- block
- flexural pivot
- fixed block
- hole
- screw
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- 238000012360 testing method Methods 0.000 title claims abstract description 64
- 210000002445 nipple Anatomy 0.000 claims abstract description 18
- 239000011888 foil Substances 0.000 claims abstract description 13
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0041—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress
- G01M5/005—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress by means of external apparatus, e.g. test benches or portable test systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of multi-functional ball pin front is circumferentially attached to without interconnecting piece flexural pivot test tool, including foil gauge, workbench, jacking block, fixed block, two halves circular block, L shape block, screw nipple, switching cylindrical piece, the foil gauge;The jacking block is fixedly connected with fixed block by fastening bolt, the ball seat that the two halves circular block fastens double team flexural pivot is placed in the centre bore of the fixed block, the surrounding of the fixed block has been disposed radially several threaded holes, and the lock-screw that may extend to the centre bore of the fixed block is provided in the threaded hole;The L shape block horizontal component is provided with the slotted hole that threaded connection element is fixedly connected with testing machine force application rod, and vertical portion is provided with the taper hole matched with ball pin conical section.The present invention need to only replace individual part for the flexural pivot of different ball seat radiuses and remaining parts can be general, reduce waste of material, reduce tooling processing required time and shorten flexural pivot test period.
Description
Technical field
The present invention relates to a kind of flexural pivot test tools suitable for a variety of experimental conditions, can carry out without connecting portion flexural pivot
Axis radial direction stiffness test, the flexural pivot cover board extrusion pressure test without connecting portion, it is specifically a kind of multi-functional without interconnecting piece ball
Cut with scissors test tool.
Background technique
Flexural pivot usually needs to carry out many tests during product R & D, such as axis, radial direction as chassis function part
Stiffness test.When test is without connecting portion flexural pivot axis, radial rigidity, traditional tooling needs weight for the ball seat of different radii
A set of tooling is newly processed than relatively time-consuming, therefore a variety of test situations can be suitable for by designing one kind, and for different ball seats
The test tool that the flexural pivot of radius only needs to re-work only a few part is meaningful.In patent CN206504842 U
A kind of flexural pivot axis radial direction stiffness test tooling is described, fixation kit and force component are included.The tooling is able to carry out band connection
The flexural pivot axis at position, radial rigidity test not can be carried out band connection position flexural pivot rating test and axial rigidity test.For ball
The different flexural pivot major part part of seat radius all needs to re-work.
Summary of the invention
The purpose of the present invention is to solve under a variety of test situations of flexural pivot, need to design more set toolings to increase flexural pivot
Test period problem and flexural pivot to different ball seat radiuses, tooling need to redesign problem, by a variety of test tools into
Row co-design designs a kind of multi-functional tooling that can be suitable for a variety of test situations, can shorten the flexural pivot test period,
Few part need to be only re-worked simultaneously for the ball seat of different radii, can be reduced tooling process time, tooling is improved and utilizes
Rate reduces waste of material.
The technical solution adopted by the present invention to solve the technical problems is:
It is a kind of multi-functional without interconnecting piece flexural pivot test tool, including:
Foil gauge, workbench, jacking block, fixed block, two halves circular block, L shape block, screw nipple, switching cylindrical piece,
The foil gauge is circumferentially attached to the ball pin front of band connection portion flexural pivot every 90 degree, is separated by two foil gauge structures of 180 degree
At one group totally two groups, one group is used for X to calibration, and another group is demarcated for Y-direction;The jacking block and fixed block passes through fastening bolt
It is fixedly connected, the ball seat that the two halves circular block fastens double team flexural pivot is placed in the centre bore of the fixed block, described solid
The surrounding for determining block has been disposed radially several threaded holes, and the centre bore that may extend to the fixed block is provided in the threaded hole
Lock-screw;
The L shape block horizontal component is provided with the slotted hole that threaded connection element is fixedly connected with testing machine force application rod,
Vertical portion is provided with the taper hole matched with ball pin conical section, and the vertical portion end of the L shape block is medially vertically arranged
There are the grooving for the taper hole that goes directly and the cross through hole across the grooving, matched is provided in the cross through hole
One clamping screw and the first locking nut;The screw nipple passes through screw-threaded coupling ball pin.
Preferably, the threaded connection element includes switching cylindrical piece, and the switching cylindrical piece upper end is provided with and institute
The threaded hole of testing machine force application rod threaded connection is stated, lower end is provided with the insertion slotted hole and matches with the second locking nut
External screw thread.
Preferably, the two halves circular block arc-shaped inner surface is provided with the semicircle matched after fastening with the ball seat
Groove, the two sides of the semi-circular recesses are provided with the rib of limitation ball seat upper and lower surface axial position, the two halves circular block
Periphery wall has been arranged radially several through-holes.
Preferably, when test without interconnecting piece flexural pivot axial rigidity, the jacking block and fixed block pass through fastening
Bolt is fixed on the table.
Preferably, the periphery wall of the fixed block and jacking block is provided with the plane to fit with the top surface of the workbench.
Compared with prior art, the beneficial effects of the invention are as follows:
Co-design method is used when the present invention designs, and can satisfy various flexural pivot test situations, not simultaneously for ball seat radius
Same flexural pivot need to only re-work two semicircle parts, and remaining parts are in test without connecting portion axis, the work of radial rigidity
It is reusable to fill part.By optimizing to traditional L shape block, slot treatment is carried out in itself and ball pin coupling part,
The position of L shape block is locked by the first clamping screw.Circular hole becomes oblong hole above L shape block simultaneously, and length can basis
Different tests require to be designed, slight to moderate error caused by processing to eliminate convenient for finely tuning, and improve the essence of test
Degree, reliability and stability, can greatly shorten the flexural pivot test period, at the same tooling co-design also can be reduced material need not
It wastes.
Detailed description of the invention
Fig. 1 is without interconnecting piece flexural pivot schematic diagram;
Fig. 2 is without interconnecting piece flexural pivot radial rigidity test tool schematic diagram;
Fig. 3 is without interconnecting piece flexural pivot axial rigidity test tool schematic diagram;
Fig. 4 is tested without the flexural pivot cover board extrusion pressure of interconnecting piece
Fig. 5 is semicircle block structure schematic diagram;
Fig. 6 is L shape block structure schematic diagram;
Attached drawing marks explanation:1- ball pin, 2- ball seat, 3- workbench, the first clamping screw of 4-, 5- screw nipple, 6-L shape block,
7- switching cylindrical piece, 8- testing machine force application rod, 9- sensor, 10- height adjusting blocks, the second clamping screw of 11-, 12- second lock
Tight nut, the first locking nut of 13-, 14- jacking block, 15- fixed block, 16- fastening bolt, 17- lock-screw, 18- semicircle block,
19- press bench, 20- press machine loading blocks, 21- foil gauge.
Specific embodiment
For a better understanding of the present invention, the embodiment of the present invention is described in further details with reference to the accompanying drawing.
Fig. 1 is the spherical hinge structure figure without connecting portion.
As shown in Fig. 2, it is a kind of multi-functional without interconnecting piece flexural pivot test tool, including:
Foil gauge 21, workbench 3, jacking block 14, fixed block 15, two halves circular block 18, L shape block 6, screw nipple 5, switching cylinder
Block,
The foil gauge 21 is circumferentially attached to the ball pin front of band connection portion flexural pivot every 90 degree, is separated by two foil gauges of 180 degree
One group totally two groups are constituted, one group is used for X to calibration, and another group is demarcated for Y-direction;
The jacking block 14 is fixedly connected with fixed block 15 by fastening bolt, and the two halves circular block 18, which fastens, sandwiches flexural pivot
Ball seat 2 be placed in the centre bore of the fixed block 15, the surrounding of the fixed block 15 has been disposed radially several threaded holes,
The lock-screw 17 that may extend to the centre bore of the fixed block 15 is provided in the threaded hole.
As shown in fig. 6,6 horizontal component of L shape block is provided with threaded connection element and testing machine force application rod 8 is solid
Surely the slotted hole connected, vertical portion are provided with the taper hole matched with ball pin conical section, the vertical portion end of the L shape block 6
The grooving and cross through hole across the grooving that end is medially vertically arranged with the taper hole that goes directly, in the cross through hole
It is provided with the first clamping screw 4 and the first locking nut 13 matched, the screw nipple 5 passes through screw-threaded coupling ball pin.
The threaded connection element include screw nipple 5, switching cylindrical piece 7,5 upper end of screw nipple be provided with it is described
The threaded hole that testing machine force application rod 8 is threadedly coupled, lower end is provided with the threaded hole connecting with the ball pin 1, the switching cylinder
7 upper end of block is provided with the threaded hole being threadedly coupled with the testing machine force application rod 8, lower end be provided with the insertion slotted hole and with
The external screw thread that second locking nut 12 matches.Pass through height adjusting blocks 10 and the second locking screw on the testing machine force application rod 8
Bolt 11 is provided with sensor 9.
It matches as shown in figure 5,18 arc-shaped inner surface of two halves circular block is provided with after fastening with the ball seat 2
Semi-circular recesses, the two sides of the semi-circular recesses are provided with the rib of limitation 2 upper and lower surface axial position of ball seat, the two halves
18 periphery wall of circular block has been arranged radially several through-holes.It is different for 2 radius of ball seat without interconnecting piece flexural pivot, it is carried out
The semicircle block need to be only re-worked when axis, radial rigidity test, it is identical as described in Fig. 3 that Fig. 2 can be used in remaining parts
Part.
The periphery wall of the fixed block 15 is provided with respect to 3 side of workbench to fit with the top surface of the workbench 3
Plane increases contact area, the stability of guarantee test.
As described in Figure 2, when carrying out flexural pivot calibration using MTS, tooling and flexural pivot install and use mode and are:
Rotation ball pin makes X be parallel to 13 contact surface of L shape block 6 and the first locking nut to a group foil gauge, later fills L shape block 6
Enter and the first clamping screw 4 is inserted into 6 lower opening of L shape block in ball pin, tightens the fixed L shape block 6 of the first locking nut 13 and ball pin, and revolve
Enter screw nipple 5 prevent L shape block 6 load when sliding, operation MTS testing machine loaded, record different loads under strain value.
It has demarcated X and has removed the second locking nut 12 backward, operation MTS moves up upper part, unloads screw nipple 5, unscrew first
Locking nut 13, the L shape that slightly moves right block 6, rotation ball pin make Y-direction foil gauge group be parallel to L shape block 6 and the first locking screw
Female 13 contact surfaces.It moves to right and loads onto L shape block 6, tighten the fixed L shape block 6 of the first locking nut 13, and screw in screw nipple 5, adjust
MTS makes to transfer the insertion slotted hole of cylindrical piece 7 and tightens the second locking nut 12, can carry out Y-direction calibration.
It, can the progress radial rigidity test of coupling stiffness testing machine after completing calibration.
As shown in Fig. 2, tooling mainly includes jacking block 14, workbench at this time when testing without interconnecting piece flexural pivot radial rigidity
3, fixed block 15, switching cylindrical piece 7, semicircle block 18, lock-screw 17 etc., specific embodiment is:, by jacking block 14 and fix
Block 15 is connected by fastening bolt 16, blocks 2 upper and lower surfaces of ball seat with semicircle block 18, then semicircle block 18 and flexural pivot one
With being put into 15 middle part circular hole of fixed block, adjusts semicircle block position and lock-screw 17 is locked semicircle block, then
Switching 7 one end of cylindrical piece is screwed on load bar, the other end is inserted into the slotted hole of L shape block 6, tightens the second locking nut 12.
Then ball pin 1 is inserted into 6 lower end taper hole of L shape block, tightens the first locking nut 13, and screw in screw nipple 5 and fix L shape
Block 6, fixed block 15 is moved down control machine until 15 lower plane of fixed block at this time may be used with the contact of 3 upper surface of workbench
Measure flexural pivot radial rigidity.
As shown in figure 3, specific embodiment is when testing without interconnecting piece flexural pivot axial rigidity:It tests radial rigid
After degree, screw nipple 5 is backed out, unclamps the first locking nut 13, the part such as flexural pivot 1 and fixed block 15 is taken away, is then taken
Jacking block 14 and fixed block 15 are fixed on 3 surface of workbench by fastening bolt 16, by spiral shell by lower L shape block 6 and switching cylindrical piece 7
Line connecting tube 5 screws in 1 threaded portion of ball pin, and 8 position of Adjustment Tests machine load bar makes it tap touching with 5 top of screw nipple
And centering, rotation screw nipple 5 move up it to will test load bar to connect with ball pin 1, can carry out axial direction at this time
Rigidity test, including axial compression rigidity test and axial compression rigidity test.
As shown in figure 4, specific embodiment is when testing without interconnecting piece flexural pivot cover board extrusion pressure:Test axial direction
After rigidity, rotation screw nipple 5 is detached from it with test load bar, unscrews fastening bolt 16 for the same work of flexural pivot part of detecting
Make platform disengaging, flexural pivot part of detecting is placed on press bench 19, adjusts press machine and make 5 upper surface of screw nipple
With 20 following table face contact of press machine loading blocks, the test of flexural pivot cover board extrusion pressure can be carried out at this time.
Above-mentioned embodiment is only a preferred solution of the present invention, not the present invention is made in any form
Limitation, there are also other variations and modifications on the premise of not exceeding the technical scheme recorded in the claims.
Claims (5)
1. a kind of multi-functional without interconnecting piece flexural pivot test tool, which is characterized in that including:
Foil gauge (21), jacking block (14), fixed block (15), two halves circular block (18), L shape block (6), is threadedly coupled workbench (3)
(5), switching cylindrical piece (7) are managed,
The foil gauge (21) is circumferentially attached to the ball pin front of band connection portion flexural pivot every 90 degree, is separated by two strains of 180 degree
Piece constitutes one group totally two groups, and one group is used for X to calibration, and another group is demarcated for Y-direction;The jacking block (14) and fixed block (15)
It is fixedly connected by fastening bolt (16), the ball seat (2) that the two halves circular block (18) fastens double team flexural pivot is placed in described
In the centre bore of fixed block (15), the surrounding of the fixed block (15) has been disposed radially several threaded holes, in the threaded hole
It is provided with the lock-screw (17) that may extend to the centre bore of the fixed block (15);
Described L shape block (6) horizontal component is provided with the length that threaded connection element is fixedly connected with testing machine force application rod (8)
Circular hole, vertical portion are provided with the taper hole matched with ball pin (1) conical section, and the vertical portion end of the L shape block (6) is placed in the middle
Ground is vertically arranged with the grooving for the taper hole that goes directly and the cross through hole across the grooving, is provided in the cross through hole
The first clamping screw (4) and the first locking nut (13) matched;The screw nipple (5) passes through screw-threaded coupling ball pin.
2. one kind according to claim 1 is multi-functional without interconnecting piece flexural pivot test tool, which is characterized in that the spiral shell
Line connecting component includes switching cylindrical piece (7), and switching cylindrical piece (7) upper end is provided with and the testing machine force application rod (8)
The threaded hole of threaded connection, lower end are provided with the external screw thread for being inserted into the slotted hole and matching with the second locking nut (12).
3. one kind according to claim 1 is multi-functional without interconnecting piece flexural pivot test tool, which is characterized in that described two
Semicircle block (18) arc-shaped inner surface is provided with the semi-circular recesses matched after fastening with the ball seat (2), the semicircle
The two sides of groove are provided with the rib of limitation ball seat (2) upper and lower surface axial position, two halves circular block (18) the periphery wall diameter
To being provided with several through-holes.
4. one kind according to claim 1 is multi-functional without interconnecting piece flexural pivot test tool, which is characterized in that when carry out not
When band connection portion flexural pivot axial rigidity is tested, the jacking block (14) and fixed block (15) pass through fastening bolt (16) and are fixed on work
Make on platform (3).
5. one kind according to claim 4 is multi-functional without interconnecting piece flexural pivot test tool, which is characterized in that the fixation
Block (15) and the periphery wall of jacking block (14) are provided with the plane to fit with the top surface of the workbench (3).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810899974.6A CN108896257B (en) | 2018-08-09 | 2018-08-09 | Multifunctional spherical hinge test tool without connecting part |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810899974.6A CN108896257B (en) | 2018-08-09 | 2018-08-09 | Multifunctional spherical hinge test tool without connecting part |
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Publication Number | Publication Date |
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CN108896257A true CN108896257A (en) | 2018-11-27 |
CN108896257B CN108896257B (en) | 2023-12-01 |
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CN201810899974.6A Active CN108896257B (en) | 2018-08-09 | 2018-08-09 | Multifunctional spherical hinge test tool without connecting part |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111289363A (en) * | 2020-03-12 | 2020-06-16 | 河北瑞志交通技术咨询有限公司 | Clamp for silicon core pipe tensile test and test method thereof |
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CN206504842U (en) * | 2017-01-22 | 2017-09-19 | 浙江工业大学 | A kind of ball pivot Axial and radial stiffness test frock |
CN206920058U (en) * | 2017-07-04 | 2018-01-23 | 四川望锦机械有限公司 | A kind of threaded self-locking automobile ball pivot debugging clamper |
CN107631887A (en) * | 2017-09-21 | 2018-01-26 | 华南理工大学 | A kind of spindle STS system test set |
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2018
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EP1489314A2 (en) * | 2003-06-20 | 2004-12-22 | ZF Lemförder Metallwaren AG | Ball joint |
CN103322028A (en) * | 2013-07-04 | 2013-09-25 | 中国科学院长春光学精密机械与物理研究所 | Precise high-rigidity flexible spherical hinge |
CN103712851A (en) * | 2013-12-20 | 2014-04-09 | 浙江大学 | High-pressure hydrogen environment fatigue test clamp for material testing machine |
CN204718787U (en) * | 2015-06-19 | 2015-10-21 | 重庆大学 | A kind of charger of girder steel monolithic stability bearingtest |
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