CN108896257B - Multifunctional spherical hinge test tool without connecting part - Google Patents
Multifunctional spherical hinge test tool without connecting part Download PDFInfo
- Publication number
- CN108896257B CN108896257B CN201810899974.6A CN201810899974A CN108896257B CN 108896257 B CN108896257 B CN 108896257B CN 201810899974 A CN201810899974 A CN 201810899974A CN 108896257 B CN108896257 B CN 108896257B
- Authority
- CN
- China
- Prior art keywords
- block
- fixed block
- spherical hinge
- ball
- threaded
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 58
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 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 5
- 238000000034 method Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012827 research and development 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
Abstract
The invention discloses a multifunctional spherical hinge test fixture without a connecting part, which comprises a strain gauge, a workbench, a top block, a fixed block, two semicircular blocks, an L-shaped block, a threaded connecting pipe and a switching cylindrical block, wherein the strain gauge is attached to the front part of a spherical pin along the circumferential direction; the top block is fixedly connected with the fixed block through a fastening bolt, the ball seats of the ball hinges are buckled and clamped by the two semicircular blocks and are arranged in the central holes of the fixed block, a plurality of threaded holes are formed in the periphery of the fixed block along the radial direction, and locking screws which can extend to the central holes of the fixed block are arranged in the threaded holes; the L-shaped block is characterized in that the horizontal part of the L-shaped block is provided with a slotted hole fixedly connected with a force application rod of the testing machine through a threaded connecting part, and the vertical part of the L-shaped block is provided with a taper hole matched with the taper section of the ball pin. According to the invention, for the spherical hinge with different ball seat radiuses, only individual parts are required to be replaced, and other parts can be used universally, so that the material waste is reduced, the time required by tooling processing is shortened, and the test time of the spherical hinge is shortened.
Description
Technical Field
The invention relates to a ball hinge test fixture suitable for various test conditions, which can be used for testing radial rigidity of a ball hinge shaft without a connecting part and a ball hinge cover plate pressing force test without a connecting part, in particular to a multifunctional ball hinge test fixture without a connecting part.
Background
The spherical hinge is used as a chassis functional part, and a plurality of tests, such as axle and radial rigidity tests, are often required to be carried out in the research and development process of products. When the ball hinge shaft and the radial rigidity of the joint part are tested, the traditional tool is time-consuming to reprocess one set of tool for ball seats with different radiuses, so that the design of the test tool which can be suitable for various test conditions and is only required to reprocess few parts for the ball hinges with different ball seat radiuses is significant. In patent CN 206504842U a radial stiffness test tooling for a spherical hinge is described, comprising a fixing assembly and a force application assembly. The tool can be used for carrying out ball hinge shaft and radial rigidity tests of the connecting part, and cannot be used for carrying out ball hinge calibration tests and axial rigidity tests of the connecting part. Most parts of the spherical hinges with different ball seat radiuses need to be reworked.
Disclosure of Invention
The invention aims to solve the problems that a plurality of sets of tools are required to be designed under the condition of multiple tests of the spherical hinge so as to increase the test period of the spherical hinge and the problem that the tools are required to be redesigned for the spherical hinge with different ball seat radiuses, and the multifunctional tool which can be suitable for the condition of multiple tests is designed by carrying out joint design on the multiple test tools, so that the test period of the spherical hinge can be shortened, meanwhile, only few parts are required to be reprocessed for the ball seats with different radiuses, the tool processing time can be reduced, the tool utilization rate is improved, and the material waste is reduced.
The technical scheme adopted for solving the technical problems is as follows:
multifunctional ball pivot test fixture without connecting part includes:
strain gage, workbench, top block, fixed block, two semicircular blocks, L-shaped block, threaded connecting pipe and switching cylindrical block,
the strain gauges are attached to the front part of a spherical pin with a connecting part spherical hinge at intervals of 90 degrees along the circumferential direction, two strain gauges separated by 180 degrees form two groups, one group is used for X-direction calibration, and the other group is used for Y-direction calibration; the top block is fixedly connected with the fixed block through a fastening bolt, the ball seats of the ball hinges are buckled and clamped by the two semicircular blocks and are arranged in the central holes of the fixed block, a plurality of threaded holes are formed in the periphery of the fixed block along the radial direction, and locking screws which can extend to the central holes of the fixed block are arranged in the threaded holes;
the horizontal part of the L-shaped block is provided with a slotted hole fixedly connected with a force application rod of the testing machine through a threaded connecting part, the vertical part is provided with a conical hole matched with the conical section of the ball pin, the tail end of the vertical part of the L-shaped block is vertically provided with a cutting groove reaching the conical hole and a transverse through hole penetrating through the cutting groove in a centering way, and the transverse through hole is internally provided with a first locking bolt and a first locking nut which are matched with each other; the threaded connecting pipe locks the ball pin through threads.
Preferably, the threaded connection part comprises a switching cylindrical block, a threaded hole in threaded connection with the force application rod of the testing machine is formed in the upper end of the switching cylindrical block, and an external thread which is inserted into the slotted hole and matched with the second locking nut is formed in the lower end of the switching cylindrical block.
Preferably, the arc-shaped inner surfaces of the two semicircular blocks are provided with semicircular grooves matched with the ball seat after being buckled, the two sides of the semicircular grooves are provided with flanges for limiting the axial positions of the upper surface and the lower surface of the ball seat, and the peripheral walls of the two semicircular blocks are radially provided with a plurality of through holes.
Preferably, when the axial rigidity test of the spherical hinge without the connecting part is carried out, the top block and the fixed block are fixed on the workbench through fastening bolts.
Preferably, the outer peripheral walls of the fixed block and the top block are provided with planes which are attached to the top surface of the workbench.
Compared with the prior art, the invention has the beneficial effects that:
the joint design method is adopted in the design of the invention, so that various ball joint test conditions can be satisfied, meanwhile, only two semicircular parts are required to be reprocessed for the ball joints with different ball seat radiuses, and the rest parts can be reused in the test of the tool parts without connecting part shaft and radial rigidity. The traditional L-shaped block is optimized, the grooving treatment is carried out on the connecting part of the traditional L-shaped block and the ball pin, and the position of the L-shaped block is locked through the first locking bolt. Meanwhile, the round hole above the L-shaped block is changed into an oblong hole, the length of the oblong hole can be designed according to different test requirements, fine adjustment is convenient to achieve, slight centering errors caused by machining are eliminated, test precision, reliability and stability are improved, the test period of the spherical hinge can be greatly shortened, and meanwhile, unnecessary waste of materials can be reduced due to tool joint design.
Drawings
FIG. 1 is a schematic view of a spherical hinge without a joint;
FIG. 2 is a schematic view of a radial stiffness test fixture for a spherical hinge without a connecting part;
FIG. 3 is a schematic view of a tool for testing the axial rigidity of a spherical hinge without a connecting part;
FIG. 4 ball hinged cover plate press out force test without connection
FIG. 5 is a schematic diagram of a semi-circular block structure;
FIG. 6 is a schematic view of an L-block structure;
the drawings are marked with the following description: 1-ball pin, 2-ball seat, 3-workbench, 4-first locking bolt, 5-threaded connecting pipe, 6-L-shaped block, 7-switching cylinder block, 8-test machine force application rod, 9-sensor, 10-height adjusting block, 11-second locking bolt, 12-second locking nut, 13-first locking nut, 14-top block, 15-fixed block, 16-fastening bolt, 17-locking screw, 18-semicircular block, 19-press workbench, 20-press loading block and 21-strain gauge.
Detailed Description
For a better understanding of the present invention, embodiments of the present invention are described in further detail below with reference to the drawings.
Fig. 1 is a view showing a structure of a ball hinge without a joint portion.
As shown in fig. 2, a multifunctional ball pivot test fixture without a connecting part includes:
strain gage 21, workbench 3, top block 14, fixed block 15, two semicircular blocks 18, L-shaped block 6, threaded connecting pipe 5 and switching cylindrical block,
the strain gauges 21 are attached to the front part of a spherical pin with a connecting part spherical hinge at intervals of 90 degrees along the circumferential direction, two strain gauges separated by 180 degrees form a group which is totally two groups, one group is used for X-direction calibration, and the other group is used for Y-direction calibration;
the top block 14 is fixedly connected with the fixed block 15 through a fastening bolt, the ball seat 2 of the ball hinge is buckled and clamped by the two semicircular blocks 18 and is arranged in a central hole of the fixed block 15, a plurality of threaded holes are formed in the periphery of the fixed block 15 along the radial direction, and locking screws 17 which can extend to the central hole of the fixed block 15 are arranged in the threaded holes.
As shown in fig. 6, the horizontal part of the L-shaped block 6 is provided with a slotted hole fixedly connected with the force application rod 8 of the testing machine through a threaded connection component, the vertical part is provided with a conical hole matched with the conical section of the ball pin, the tail end of the vertical part of the L-shaped block 6 is vertically provided with a slot reaching the conical hole and a transverse through hole penetrating through the slot in the middle, the transverse through hole is internally provided with a first locking bolt 4 and a first locking nut 13 which are matched with each other, and the threaded connection pipe 5 locks the ball pin through threads. The screw connection part comprises a screw connection pipe 5 and a switching cylindrical block 7, wherein the upper end of the screw connection pipe 5 is provided with a threaded hole which is in threaded connection with a force application rod 8 of the testing machine, the lower end of the screw connection pipe is provided with a threaded hole which is connected with the ball pin 1, the upper end of the switching cylindrical block 7 is provided with a threaded hole which is in threaded connection with the force application rod 8 of the testing machine, and the lower end of the switching cylindrical block is provided with an external thread which is inserted into the slotted hole and matched with a second locking nut 12. The sensor 9 is arranged on the tester force application rod 8 through the height adjusting block 10 and the second locking bolt 11.
As shown in fig. 5, the arc inner surfaces of the two semicircular blocks 18 are provided with semicircular grooves which are matched with the ball seat 2 after being buckled, two sides of each semicircular groove are provided with flanges for limiting the axial positions of the upper surface and the lower surface of the ball seat 2, and the outer peripheral walls of the two semicircular blocks 18 are radially provided with a plurality of through holes. For spherical hinges without connecting parts with different radii of the ball seat 2, only the semicircular blocks need to be reprocessed when the spherical hinges are subjected to axial and radial rigidity test, and the rest parts can be the same parts as those shown in fig. 2 and 3.
The periphery wall of fixed block 15 is provided with the plane of laminating mutually with the top surface of workstation 3 relative workstation 3 one side, increases area of contact, guarantees experimental stability.
As shown in fig. 2, when the MTS is used to perform the spherical hinge calibration, the tool and the spherical hinge are installed and used in the following manner:
the ball pin is rotated to enable the strain gauge of the X-direction group to be parallel to the contact surface of the L-shaped block 6 and the first locking nut 13, then the L-shaped block 6 is arranged in the ball pin, the first locking bolt 4 is inserted into the lower hole of the L-shaped block 6, the first locking nut 13 is screwed to fix the L-shaped block 6 and the ball pin, the threaded connecting pipe 5 is screwed to prevent the L-shaped block 6 from sliding when being loaded, the MTS tester is operated to load, and strain values under different loads are recorded. After the calibration of the X, the second lock nut 12 is removed backward, the MTS is operated to move up the upper part of the second lock nut, the threaded connecting pipe 5 is removed, the first lock nut 13 is unscrewed, the L-shaped block 6 is slightly moved rightward, and the ball pin is rotated to enable the Y-direction strain gauge set to be parallel to the contact surface of the L-shaped block 6 and the first lock nut 13. The L-shaped block 6 is assembled in a right-hand moving mode, the first locking nut 13 is screwed to fix the L-shaped block 6, the threaded connecting pipe 5 is screwed in, the MTS is adjusted to enable the switching cylindrical block 7 to be inserted into the slotted hole, the second locking nut 12 is screwed in, and Y-direction calibration can be conducted.
After calibration is completed, a rigidity testing machine can be connected to carry out radial rigidity test.
As shown in fig. 2, when the radial stiffness of the spherical hinge without the connecting portion is tested, the tool mainly comprises a top block 14, a workbench 3, a fixed block 15, a switching cylindrical block 7, a semicircular block 18, a locking screw 17 and the like, and the specific implementation mode is as follows: the top block 14 is connected with the fixed block 15 through the fastening bolt 16, the upper surface and the lower surface of the ball seat 2 are clamped by the semicircular block 18, then the semicircular block 18 and the spherical hinge are put into a round hole in the middle of the fixed block 15 together, the semicircular block is adjusted to enable the locking screw 17 to lock the semicircular block, one end of the switching cylindrical block 7 is screwed into the loading rod, the other end of the switching cylindrical block is inserted into the round hole of the L-shaped block 6, and the second locking nut 12 is screwed. Then the ball pin 1 is inserted into a taper hole at the lower end of the L-shaped block 6, the first locking nut 13 is screwed in, the threaded connecting pipe 5 is screwed in to fix the L-shaped block 6, the machine is controlled to enable the fixing block 15 to move downwards until the lower plane of the fixing block 15 contacts with the upper surface of the workbench 3, and at the moment, the radial rigidity of the ball hinge can be measured.
As shown in fig. 3, when the axial rigidity of the spherical hinge without the connecting part is tested, the specific implementation mode is as follows: after the radial rigidity is tested, the threaded connecting pipe 5 is unscrewed, the first locking nut 13 is loosened, the spherical hinge 1, the fixed block 15 and other parts are taken away, then the L-shaped block 6 and the switching cylindrical block 7 are taken away, the top block 14 and the fixed block 15 are fixed on the surface of the workbench 3 through the fastening bolt 16, the threaded connecting pipe 5 is screwed into the threaded part of the spherical pin 1, the position of the loading rod 8 of the testing machine is adjusted to enable the loading rod to be in contact with and centered with the upper part of the threaded connecting pipe 5, the threaded connecting pipe 5 is rotated to enable the loading rod to be moved upwards so as to be connected with the spherical pin 1, and at the moment, the axial rigidity test including the axial compression rigidity test and the axial compression rigidity test can be carried out.
As shown in fig. 4, the embodiment of the method for testing the pressing force of the spherical hinge cover plate without the connecting part is as follows: after the axial rigidity is tested, the threaded connecting pipe 5 is rotated to separate from the test loading rod, the fastening bolt 16 is unscrewed to separate the spherical hinge testing part from the workbench, the spherical hinge testing part is placed on the press workbench 19, the press is adjusted to enable the upper surface of the threaded connecting pipe 5 to be in contact with the lower surface of the press loading block 20, and then the spherical hinge cover plate extrusion force test can be performed.
The above-described embodiment is only a preferred embodiment of the present invention, and is not limited in any way, and other variations and modifications may be made without departing from the technical aspects set forth in the claims.
Claims (3)
1. Multifunctional ball pivot test fixture without connecting part, which is characterized by comprising:
a strain gauge (21), a workbench (3), a top block (14), a fixed block (15), two semicircular blocks (18), an L-shaped block (6), a threaded connecting pipe (5) and a switching cylindrical block (7),
the strain gauges (21) are attached to the front part of a spherical pin with a connecting part spherical hinge at intervals of 90 degrees along the circumferential direction, two strain gauges separated by 180 degrees form a group which is totally two groups, one group is used for X-direction calibration, and the other group is used for Y-direction calibration; the top block (14) is fixedly connected with the fixed block (15) through a fastening bolt (16), the two semicircular blocks (18) are buckled and clamped with the ball seat (2) of the spherical hinge and are arranged in the central hole of the fixed block (15), a plurality of threaded holes are formed in the periphery of the fixed block (15) along the radial direction, and locking screws (17) which can extend to the central hole of the fixed block (15) are arranged in the threaded holes;
the horizontal part of the L-shaped block (6) is provided with a slotted hole fixedly connected with a force application rod (8) of the testing machine through a threaded connecting component, the vertical part is provided with a conical hole matched with the conical section of the ball pin (1), the tail end of the vertical part of the L-shaped block (6) is vertically provided with a cutting groove reaching the conical hole and a transverse through hole penetrating through the cutting groove in a centering way, and the transverse through hole is internally provided with a first locking bolt (4) and a first locking nut (13) which are matched with each other; the threaded connecting pipe (5) locks the ball pin through threads; the threaded connection part comprises a switching cylindrical block (7), a threaded hole in threaded connection with the force application rod (8) of the testing machine is formed in the upper end of the switching cylindrical block (7), and external threads which are inserted into the long round hole and matched with the second locking nut (12) are formed in the lower end of the switching cylindrical block; the ball seat is characterized in that the arc-shaped inner surfaces of the two semicircular blocks (18) are provided with semicircular grooves matched with the ball seat (2) after being buckled, the two sides of each semicircular groove are provided with flanges for limiting the axial positions of the upper surface and the lower surface of the ball seat (2), and the peripheral walls of the two semicircular blocks (18) are radially provided with a plurality of through holes.
2. The multifunctional spherical hinge test fixture without the connecting portion according to claim 1, wherein the top block (14) and the fixed block (15) are fixed on the workbench (3) through fastening bolts (16) when the axial rigidity test of the spherical hinge without the connecting portion is performed.
3. The multifunctional spherical hinge test fixture without connecting portion according to claim 1, wherein the outer peripheral walls of the fixed block (15) and the top block (14) are provided with planes attached to the top surface of the workbench (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
|---|---|---|---|
| CN201810899974.6A CN108896257B (en) | 2018-08-09 | 2018-08-09 | Multifunctional spherical hinge test tool without connecting part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108896257A CN108896257A (en) | 2018-11-27 |
| CN108896257B true CN108896257B (en) | 2023-12-01 |
Family
ID=64353452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810899974.6A Active CN108896257B (en) | 2018-08-09 | 2018-08-09 | Multifunctional spherical hinge test tool without connecting part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108896257B (en) |
Families Citing this family (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 |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105675425A (en) * | 2016-03-10 | 2016-06-15 | 宁波拓普集团股份有限公司 | Abrasion testing tool of spherical hinge |
| CN105842098A (en) * | 2016-04-18 | 2016-08-10 | 合肥工业大学 | Friction-wear test work fixture |
| CN205620256U (en) * | 2016-04-18 | 2016-10-05 | 合肥工业大学 | Experimental frock clamp of friction and wear |
| CN205785793U (en) * | 2016-06-23 | 2016-12-07 | 广州汽车集团股份有限公司 | Bush test stand |
| 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 |
-
2018
- 2018-08-09 CN CN201810899974.6A patent/CN108896257B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105675425A (en) * | 2016-03-10 | 2016-06-15 | 宁波拓普集团股份有限公司 | Abrasion testing tool of spherical hinge |
| CN105842098A (en) * | 2016-04-18 | 2016-08-10 | 合肥工业大学 | Friction-wear test work fixture |
| CN205620256U (en) * | 2016-04-18 | 2016-10-05 | 合肥工业大学 | Experimental frock clamp of friction and wear |
| CN205785793U (en) * | 2016-06-23 | 2016-12-07 | 广州汽车集团股份有限公司 | Bush test stand |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108896257A (en) | 2018-11-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108709793B (en) | Loading device and method for bending-torsion vibration fatigue test | |
| US5024002A (en) | Apparatus with a supporting frame and process for manufacturing such a frame | |
| CN105234712B (en) | A kind of spindle manual | |
| CN201881202U (en) | Device for testing high-speed milling and cutting forces for spliced materials with different hardness | |
| CN108645719B (en) | Test device for carrying out biaxial loading by utilizing shear apparatus and use method thereof | |
| CN108896257B (en) | Multifunctional spherical hinge test tool without connecting part | |
| CN111693371A (en) | Test fixture for testing tensile property of ceramic matrix composite | |
| CN206710084U (en) | Bushing test fixture | |
| CN208847434U (en) | It is a kind of multi-functional without interconnecting piece flexural pivot test tool | |
| CN206717464U (en) | The clamping device of axiality is kept when being processed based on stud | |
| CN113237739B (en) | Continuous tension and compression test fixture for measuring Baoxing behavior | |
| CN214186211U (en) | Special-shaped workpiece machining clamp convenient to disassemble | |
| CN1932430B (en) | Arrangement for fastening a support of a scale and method for fastening the support, as well as a linear measuring device | |
| CN208322721U (en) | Hand-operated clamping module | |
| CN216176736U (en) | Aligning type chuck connector | |
| CN111999021A (en) | Device and method for testing static performance of foil of dynamic pressure radial gas bearing | |
| CN112504096A (en) | Measuring device for measuring flatness of workpiece | |
| CN219255294U (en) | Threaded rod clamping device and detection equipment of shock absorber | |
| CN113405915B (en) | Mechanical bearing test bed | |
| CN111551439A (en) | Integral type bias voltage experimental apparatus | |
| CN217702459U (en) | Clamping tool for milling parts | |
| CN211627162U (en) | Blind hole occasion mounting structure of coaxiality adjusting device of testing machine and testing machine | |
| CN217687783U (en) | Detection equipment for measuring four-way rigidity of elastic joint by one-time clamping | |
| CN108838718A (en) | A kind of milling boring equipment can be used for oblique surface machining | |
| CN112427885B (en) | Method and supporting mechanism suitable for machining large thin-wall frame ring part |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |