CN114193399A - Coaxial anti-rotation revolving body structure component assembling tool and assembling method - Google Patents
Coaxial anti-rotation revolving body structure component assembling tool and assembling method Download PDFInfo
- Publication number
- CN114193399A CN114193399A CN202111529576.3A CN202111529576A CN114193399A CN 114193399 A CN114193399 A CN 114193399A CN 202111529576 A CN202111529576 A CN 202111529576A CN 114193399 A CN114193399 A CN 114193399A
- Authority
- CN
- China
- Prior art keywords
- threaded
- axial
- hole
- base
- mass block
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 239000007787 solid Substances 0.000 claims description 10
- 230000008569 process Effects 0.000 abstract description 8
- 239000000306 component Substances 0.000 description 16
- 230000006835 compression Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 8
- 239000000919 ceramic Substances 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 240000007643 Phytolacca americana Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The invention provides a coaxial anti-rotation revolving body structure component assembling tool and an assembling method, wherein the coaxial anti-rotation revolving body structure component assembling tool comprises the following components: the lower bracket is provided with an axial stepped hole, and the base is clamped in the axial stepped hole; one end of the strut is clamped with the axial stepped hole, and a base, a piezoelectric stack and a mass block are sequentially arranged on the strut in a penetrating manner; the upper bracket is arranged at a distance from the lower bracket, and an axial threaded hole is formed in the upper bracket; the lower end of the threaded top pipe is abutted to the upper end of the mass block through the stop piece, and the base, the piezoelectric stack and the mass block can be tightly pressed at the lower support; the shaft sleeve is arranged in the threaded jacking pipe, and the other end of the strut is coaxially matched and connected with an inner hole of the shaft sleeve. In the embodiment of the invention, the whole assembly process is controlled by the fixture, so that the aim of improving the assembly precision can be fulfilled.
Description
Technical Field
The invention relates to the technical field of press assembly tools, in particular to an assembly tool and an assembly method for a coaxial anti-rotation revolving body structure component.
Background
Compared with the traditional magnetoelectric vibration sensor, the piezoelectric vibration sensor in the prior art has the advantages of wide frequency response, high test magnitude, high dynamic range, superior temperature characteristic and the like, and has light weight and harsh environmental adaptability, so that the piezoelectric vibration sensor is rapidly and widely applied to the novel or newly-developed airborne application field, becomes a core component for monitoring the vibration state of an aircraft engine in the service life process, and is a key basic component for health assessment, fault prediction and diagnosis in the operation process of the engine. The piezoelectric element assembly structure of the common piezoelectric vibration sensor has a central compression type structure, a plane shear type structure and an annular shear type structure. The piezoelectric vibration sensor with a compression type structure has a simple structure and high rigidity, and belongs to the structures which are designed at the earliest and are applied in a large number of applications, wherein the most common structure is a central compression type structure. Likewise, the central compression type structure is the earliest structure in the field of on-board applications. The airborne application generally requires higher service life and reliability, and the center compression type structure piezoelectric vibration sensor becomes the preferred structure by combining the requirements of high temperature resistance and high sensitivity. The resonance frequency is required to be not less than 15kHz, the deviation of the charge sensitivity is not more than +/-5% in the frequency range of 2.5kHz, and the deviation of the charge sensitivity is not more than +/-10% in the frequency range of 5 kHz. Besides reasonably designing the structure and parts of the sensor, improving the form and position tolerance, proper and consistent pre-tightening torque and the like of the piezoelectric element assembly are also the keys for ensuring the inherent or dynamic characteristics of the resonant frequency, frequency response and the like of the sensor.
The prior art has the following disadvantages: in the prior art, the assembly of the center compression type piezoelectric element assembly is manually assembled, the assembly precision and the coaxiality of the manual assembly method are low, and the lead is easily touched to cause the failure of the normal work of the center compression type piezoelectric element assembly.
Disclosure of Invention
In view of this, embodiments of the present disclosure provide an assembling tool and an assembling method for a coaxial anti-rotation revolving body structure component, so as to achieve the purpose of improving the assembling precision.
The embodiment of the specification provides the following technical scheme: a coaxial anti-rotation solid of revolution structure component assembly tool, comprising: the lower bracket is provided with an axial stepped hole, and the base is clamped in the axial stepped hole; one end of the strut is clamped with the axial stepped hole, and a base, a piezoelectric stack and a mass block are sequentially arranged on the strut in a penetrating manner; the upper bracket is arranged at a distance from the lower bracket, and an axial threaded hole is formed in the upper bracket; the lower end of the threaded top pipe is abutted to the upper end of the mass block through the stop piece, and the base, the piezoelectric stack and the mass block can be tightly pressed at the lower support; the shaft sleeve is arranged in the threaded jacking pipe, and the other end of the strut is coaxially matched and connected with an inner hole of the shaft sleeve.
Further, the lower extreme of axial shoulder hole is the internal thread hole, and coaxial anti-rotation solid of revolution structure subassembly erecting tool still includes the fore-set, with internal thread hole fixed connection, the fore-set is provided with the axial locating hole, the one end and the coaxial location joint of axial locating hole of pillar.
Further, the base, the piezoelectric stack and the mass block are connected with a pre-tightening nut through a pre-tightening screw, wherein the diameter of the axial positioning hole is larger than the maximum diameter of the pre-tightening screw, and the inner diameter of the threaded jacking pipe is larger than the maximum diameter of the pre-tightening nut.
Further, the coaxial anti-rotation revolving body structure component assembling tool further comprises a torque nut for screwing the pre-tightening nut, and the maximum diameter of the torque nut is smaller than the inner diameter of the threaded jacking pipe.
Furthermore, mounting threaded holes are formed in two sides of the lower support, connecting through holes matched with the mounting threaded holes are formed in the upper support, and the upper support is connected with the lower support through screws.
Furthermore, a threaded sleeve is sleeved outside the screw.
The invention also provides an assembly method, which adopts the coaxial anti-rotation revolving body structure component assembly tool for assembly and comprises the following steps: step 1, detachably arranging a support in an axial stepped hole of a lower support; step 2, sequentially penetrating the base, the piezoelectric stack and the mass block on the strut and clamping the base with the axial stepped hole; step 3, placing a stop piece on the mass block and fixedly connecting the upper bracket with the lower bracket; step 4, the threaded jacking pipe is matched and connected with the axial threaded hole, and the shaft sleeve is arranged in the threaded jacking pipe and matched with the other end of the strut; step 5, pre-tightening the threaded jacking pipe and the mass block through a stop piece, and removing the strut and the shaft sleeve after the pre-tightening is finished; step 6, connecting the base, the piezoelectric stack and the mass block through a pre-tightening screw and a pre-tightening nut, and screwing the pre-tightening screw to reach a set stress value; and 7, removing the lower support, the upper support and the threaded jacking pipe to finish the assembling operation.
Further, the method specifically comprises the following steps: and assembling a top column in the axial stepped hole of the lower support, and detachably connecting the support column with the axial positioning hole of the top column.
Further, the method specifically comprises the following steps: and (4) removing the lower support, the upper support, the threaded jacking pipe and the jacking column, and then connecting the jacking column with the base to prevent the pre-tightening screw from falling off.
Compared with the prior art, the beneficial effects that can be achieved by the at least one technical scheme adopted by the embodiment of the specification at least comprise: after a base of the piezoelectric assembly is clamped by the lower support, the support penetrates through the base to be connected with the axial stepped hole, the piezoelectric stack is stacked, the mass block is placed and then fixed by the stop piece and the upper support, the support is pre-loaded through the threaded jacking pipe, finally the support is removed, the pre-tightening screw and the pre-tightening nut penetrate through the piezoelectric assembly and then are pre-tightened through the torque nut and the torque wrench according to the torque requirement, and the whole process is controlled by the clamp in the assembling shape and position size, so that the aim of improving the assembling precision can be achieved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic illustration of an explosive structure according to an embodiment of the invention;
FIG. 2 is a schematic structural view of a torque nut in an embodiment of the present invention;
FIG. 3 is a schematic view of the construction of the sleeve in an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a threaded jacking pipe in the embodiment of the invention;
FIG. 5 is a schematic structural view of an upper bracket in an embodiment of the present invention;
FIG. 6 is a schematic view of a stopper according to an embodiment of the present invention;
FIG. 7 is a schematic structural view of a strut in an embodiment of the invention;
FIG. 8 is a schematic structural view of a lower bracket in an embodiment of the present invention;
fig. 9 is a schematic structural view of the top pillar in the embodiment of the present invention.
Reference numbers in the figures: 1. a torque nut; 2. pre-tightening the nut; 3. a shaft sleeve; 4. a threaded pipe jacking; 5. a screw; 6. an upper bracket; 7. a stopper piece; 8. a mass block; 9. a piezoelectric stack; 10. a pillar; 11. a threaded sleeve; 12. a base; 13. a lower bracket; 14. a top pillar; 15. and (6) pre-tightening the screw.
Detailed Description
The embodiments of the present application will be described in detail below with reference to the accompanying drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 9, an embodiment of the present invention provides an assembly tool for a coaxial anti-rotation solid structure component, which includes a lower bracket 13, a pillar 10, an upper bracket 6, a threaded top pipe 4 and a shaft sleeve 3. The lower bracket 13 is provided with an axial stepped hole, and the base 12 is clamped in the axial stepped hole; one end of a strut 10 is clamped with the axial stepped hole, and a base 12, a piezoelectric stack 9 and a mass block 8 sequentially penetrate through the strut 10; the upper bracket 6 and the lower bracket 13 are arranged at intervals, and the upper bracket 6 is provided with an axial threaded hole; the threaded top pipe 4 is matched with the axial threaded hole, the lower end of the threaded top pipe 4 is abutted against the upper end of the mass block 8 through the stop piece 7, and the base 12, the piezoelectric stack 9 and the mass block 8 can be tightly pressed at the lower support 13; the shaft sleeve 3 is arranged in the threaded top pipe 4, and the other end of the strut 10 is coaxially matched and connected with an inner hole of the shaft sleeve 3.
After a base 12 of the piezoelectric assembly is clamped by a lower support 13, a support 10 penetrates through the base 12 to be connected with an axial stepped hole, a mass block 8 is placed after a piezoelectric stack 9 is stacked and then fixed by a stop piece 7 and an upper support 6, the support 10 is pre-loaded through a threaded top pipe 4, finally the support 10 is removed, a pre-tightening screw 15 and a pre-tightening nut 2 penetrate through the piezoelectric assembly and then are pre-tightened through a torque nut and a torque wrench according to the torque requirement, and the whole process is controlled by a clamp in the assembling shape and position dimensions, so that the purpose of improving the assembling precision can be achieved.
The piezoelectric ceramic pieces and the wiring pieces of the piezoelectric stack 9 are designed into a plurality of pieces according to the performance, and the insulation pieces are respectively arranged on the upper part and the lower part of the piezoelectric stack.
The lower extreme of axial shoulder hole is the internal thread hole, and coaxial anti-rotation solid of revolution structure subassembly erecting tool still includes fore-set 14, with internal thread hole fixed connection, fore-set 14 is provided with the axial locating hole, the coaxial location joint of one end and the axial locating hole of pillar 10.
The base 12, the piezoelectric stack 9 and the mass block 8 are connected with the pre-tightening nut 2 through a pre-tightening screw 15, wherein the diameter of the axial positioning hole is larger than the maximum diameter of the pre-tightening screw 15, and the inner diameter of the threaded jacking pipe 4 is larger than the maximum diameter of the pre-tightening nut 2.
The final assembly in the embodiment of the invention comprises a base 12, a piezoelectric stack 9, a mass block 8, a pre-tightening screw 15 and a pre-tightening nut 2, and other parts are parts of an assembly tool of a coaxial anti-rotation revolving body structure assembly, so that the parts can be disassembled after the assembly is finished.
Preferably, the coaxial anti-rotation solid of revolution structure component assembly assembling tool further comprises a torque nut 1 for screwing the pre-tightening nut 2, and the maximum diameter of the torque nut 1 is smaller than the inner diameter of the threaded top pipe 4.
The embodiment of the invention can be used for carrying out complete and parallel assembly on the annular piezoelectric ceramic element, the insulating sheet, the wiring piece and the cylindrical mass block based on coaxial precision assembly of the inner hole, and ensures that the piezoelectric element and the wiring piece are not damaged in the assembly process.
The both sides of lower carriage 13 are provided with the installation screw hole, be provided with on the upper bracket 6 with installation screw hole complex connect the via hole, the upper bracket 6 passes through the screw 5 with lower carriage 13 and is connected. The screw 5 is externally sleeved with a threaded sleeve 11.
The embodiment of the invention has the following beneficial effects:
the upper support 6 and the lower support 13 frame the upper and lower assembly straight lines of the integral piezoelectric assembly, and simultaneously the support 10 and the shaft sleeve 3 are assisted to coaxially assemble all revolving body parts in a base hole, so that the coaxiality is ensured.
Abandon conventional buckle formula fixed knot to construct, screw thread push pipe 4 and upper bracket 6 select the screw thread transmission preloading, have guaranteed the stability of assembly process preloading.
The zigzag structure and the wrenching threaded jacking pipe 4 increase the upper limit of the application range of the preloading force and realize high stress loading.
The stop piece 7 is structurally matched with the threaded sleeve 11, so that the friction torque transmission of the threaded jacking pipe 4 is prevented, the relative friction sliding between parts is avoided, the surface quality of the parts is protected, the uniform loading of the surface force load of the torsion force is ensured, and the loading force is further improved.
The upper support 6 and the lower support 13 are in a semi-surrounding structure, so that the assembly is stable and simple, and the observation visual angle is close to the full circumference.
The shaft sleeve 3 and the support post 10 are used in a nested and matched mode, the coaxiality of assembly is further guaranteed, and friction damage to the inner wall of each part when the support post 10 is coaxially taken out is avoided after assembly.
After the upper bracket 6, the lower bracket 13, the stop plate 7 and the threaded jacking pipe 4 pre-tighten the piezoelectric component through the screw 5, the strut 10 and the shaft sleeve 3 can be detached, the pre-tightening nut 2 and the pre-tightening screw 15 can be operated by hands to be assembled, and meanwhile, the assembling quality and the alignment degree of an inner hole can be observed.
The assembling tool with the semi-surrounding structure of the upper support 6 and the lower support 13 connected through the screws 5 can assemble piezoelectric components combined by multiple piezoelectric ceramic pieces, the assembling consistency is guaranteed, the efficiency is improved, the randomness of manual assembling alignment is eliminated, and the assembling quality is high.
The tool is suitable for high-stress coaxial assembly of other components with the shapes of revolution bodies.
The embodiment of the invention also provides an assembly method, which adopts the coaxial anti-rotation revolving body structure component assembly tool for assembly and comprises the following steps:
step 2, sequentially penetrating the base 12, the piezoelectric stack 9 and the mass block 8 on the support column 10 and clamping the base 12 with the axial stepped hole;
step 5, pre-tightening the threaded jacking pipe 4 and the mass block 8 through the stop piece 7, and removing the support column 10 and the shaft sleeve 3 after the pre-tightening is finished;
and 7, removing the lower support 13, the upper support 6 and the threaded top pipe 4 to finish the assembly operation.
The specific assembly method of the embodiment of the invention is described in detail as follows:
the lower support 13 of the assembling tool is flatly placed on the surface of an assembling operation table, the base 12 of the piezoelectric component is embedded into the circular groove of the lower support 13, the support column 10 penetrates through the base 12 of the piezoelectric component and then is screwed with the top column 14, and the piezoelectric component is conveniently and stably assembled in the follow-up process. The piezoelectric stack 9 and the mass 8 are sequentially sleeved on the support column 10, and then the stop piece 7 is placed. The screw 5 penetrates through a screw hole of the upper support 6 and then is sleeved with a threaded sleeve 11 and screwed on a lower support 13, then the threaded top pipe 4 is screwed into the upper support 6, the screw 5 is adjusted to enable the upper support 6 to be hung on the threaded top pipe 4 at a proper height, the shaft sleeve 3 is sleeved on the support 10, the stop piece 7 is screwed to the poke direction according to the pre-tightening torque and is stopped on the threaded sleeve 11, and then the screw 5 is screwed. The threaded top pipe 4 can be screwed down by a spanner as required, so that the preloading force of the piezoelectric assembly is fixed, and the assembly state of each part of the piezoelectric assembly is kept and stabilized. After the state is determined, the supporting column 10 is unscrewed and the supporting column 10, the top column 14 and the shaft sleeve 3 are removed, the assembling quality can be observed in all directions and at multiple angles, and finally the pre-tightening nut 2 and the pre-tightening screw 15 are installed according to positions and are fastened according to the designed torque by using a torque wrench. Finally, the screws 5 are unscrewed to remove all the assembly tool parts, and the completely assembled center compression type piezoelectric assembly can be removed.
The above description is only exemplary of the invention and should not be taken as limiting the scope of the invention, so that the invention is intended to cover all modifications and equivalents of the embodiments described herein. In addition, the technical features, the technical schemes and the technical schemes can be freely combined and used.
Claims (9)
1. The utility model provides a coaxial anti-rotation solid of revolution structure subassembly erecting tool which characterized in that includes:
the lower support (13) is provided with an axial stepped hole, and the base (12) is clamped in the axial stepped hole;
one end of the strut (10) is clamped with the axial stepped hole, and a base (12), a piezoelectric stack (9) and a mass block (8) sequentially penetrate through the strut (10);
the upper bracket (6) and the lower bracket (13) are arranged at intervals, and an axial threaded hole is formed in the upper bracket (6);
the threaded top pipe (4) is matched with the axial threaded hole, the lower end of the threaded top pipe (4) is abutted against the upper end of the mass block (8) through a stop piece (7), and the base (12), the piezoelectric stack (9) and the mass block (8) can be pressed at the lower support (13);
the shaft sleeve (3) is arranged in the threaded jacking pipe (4), and the other end of the strut (10) is coaxially matched and connected with an inner hole of the shaft sleeve (3).
2. The coaxial anti-rotation revolving body structure component assembling tool according to claim 1, characterized in that the lower end of the axial stepped hole is an internal threaded hole, the coaxial anti-rotation revolving body structure component assembling tool further comprises a top pillar (14) fixedly connected with the internal threaded hole, the top pillar (14) is provided with an axial positioning hole, and one end of the pillar (10) is coaxially positioned and clamped with the axial positioning hole.
3. The tool for assembling the coaxial anti-rotation revolving body structure component according to claim 2, characterized in that the base (12), the piezoelectric stack (9) and the mass block (8) are connected with the pre-tightening nut (2) through a pre-tightening screw (15), wherein the diameter of the axial positioning hole is larger than the maximum diameter of the pre-tightening screw (15), and the inner diameter of the threaded top pipe (4) is larger than the maximum diameter of the pre-tightening nut (2).
4. The coaxial anti-rotation solid of revolution structure component assembly tool according to claim 3, characterized in that it further comprises a torque nut (1) for screwing a pre-tightening nut (2), the maximum diameter of the torque nut (1) being smaller than the inner diameter of the threaded top pipe (4).
5. The tool for assembling a coaxial anti-rotation solid structure component according to claim 1, wherein the lower bracket (13) is provided with mounting threaded holes at both sides thereof, the upper bracket (6) is provided with connecting through holes matched with the mounting threaded holes, and the upper bracket (6) is connected with the lower bracket (13) through the screws (5).
6. The tool for assembling a coaxial anti-rotation solid structure component according to claim 5, characterized in that the screw (5) is externally sleeved with a threaded sleeve (11).
7. An assembling method using the tool for assembling a coaxial anti-rotation solid structure component according to claim 4, comprising the steps of:
step 1, detachably arranging a strut (10) in an axial stepped hole of a lower bracket (13);
step 2, sequentially penetrating a base (12), a piezoelectric stack (9) and a mass block (8) on a support (10) and clamping the base (12) with the axial stepped hole;
step 3, placing the stop piece (7) on the mass block (8) and fixedly connecting the upper bracket (6) with the lower bracket (13);
step 4, the threaded jacking pipe (4) is matched and connected with the axial threaded hole, the shaft sleeve (3) is installed in the threaded jacking pipe (4), and the shaft sleeve (3) is matched with the other end of the strut (10);
step 5, pre-tightening the threaded jacking pipe (4) and the mass block (8) through a stop piece (7), and removing the strut (10) and the shaft sleeve (3) after the pre-tightening is finished;
step 6, connecting the base (12), the piezoelectric stack (9) and the mass block (8) through a pre-tightening screw (15) and a pre-tightening nut (2), and screwing the pre-tightening screw (15) to reach a set stress value;
and 7, removing the lower support (13), the upper support (6) and the threaded top pipe (4) to finish the assembly operation.
8. The assembly method according to claim 7, characterized in that said step 1 is in particular: a top column (14) is assembled in an axial stepped hole of the lower bracket (13), and the support column (10) is detachably connected with an axial positioning hole of the top column (14).
9. The assembly method according to claim 8, characterized in that said step 7 is in particular: the lower support (13), the upper support (6), the threaded top pipe (4) and the top column (14) are removed, and then the top column (14) is connected with the base (12) to prevent the pre-tightening screw (15) from falling out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111529576.3A CN114193399A (en) | 2021-12-14 | 2021-12-14 | Coaxial anti-rotation revolving body structure component assembling tool and assembling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111529576.3A CN114193399A (en) | 2021-12-14 | 2021-12-14 | Coaxial anti-rotation revolving body structure component assembling tool and assembling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114193399A true CN114193399A (en) | 2022-03-18 |
Family
ID=80653711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111529576.3A Pending CN114193399A (en) | 2021-12-14 | 2021-12-14 | Coaxial anti-rotation revolving body structure component assembling tool and assembling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114193399A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116429573A (en) * | 2023-04-17 | 2023-07-14 | 北京工业大学 | Welding type IGBT module bonding wire tensile testing device and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2665660A1 (en) * | 1990-08-07 | 1992-02-14 | Quinton Hazell Sarl | Universal centring tool for automobile clutch |
| DE202006006352U1 (en) * | 2006-04-19 | 2006-09-07 | Müller, Michael | Bearing assembling and disassembling device for use during car repair, has three clamping jaws and ring surrounding clamping jaws, where ring is made of flexible body and is connected with adjuster to adjust inner diameter of ring |
| DE102012211889A1 (en) * | 2012-07-09 | 2014-01-09 | Mahle International Gmbh | Assembly method and assembly device |
| CN104476487A (en) * | 2014-11-17 | 2015-04-01 | 北京京航公司 | Pre-tensioning device for piezoelectric acceleration sensor |
| CN212526748U (en) * | 2020-05-29 | 2021-02-12 | 成都华川电装有限责任公司 | Planetary wheel bearing press-fitting structure of starting motor |
| CN214025421U (en) * | 2020-10-25 | 2021-08-24 | 成都大学 | Piezoelectric sensor laboratory assembly jig |
-
2021
- 2021-12-14 CN CN202111529576.3A patent/CN114193399A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2665660A1 (en) * | 1990-08-07 | 1992-02-14 | Quinton Hazell Sarl | Universal centring tool for automobile clutch |
| DE202006006352U1 (en) * | 2006-04-19 | 2006-09-07 | Müller, Michael | Bearing assembling and disassembling device for use during car repair, has three clamping jaws and ring surrounding clamping jaws, where ring is made of flexible body and is connected with adjuster to adjust inner diameter of ring |
| DE102012211889A1 (en) * | 2012-07-09 | 2014-01-09 | Mahle International Gmbh | Assembly method and assembly device |
| CN104476487A (en) * | 2014-11-17 | 2015-04-01 | 北京京航公司 | Pre-tensioning device for piezoelectric acceleration sensor |
| CN212526748U (en) * | 2020-05-29 | 2021-02-12 | 成都华川电装有限责任公司 | Planetary wheel bearing press-fitting structure of starting motor |
| CN214025421U (en) * | 2020-10-25 | 2021-08-24 | 成都大学 | Piezoelectric sensor laboratory assembly jig |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116429573A (en) * | 2023-04-17 | 2023-07-14 | 北京工业大学 | Welding type IGBT module bonding wire tensile testing device and method |
| CN116429573B (en) * | 2023-04-17 | 2023-12-08 | 北京工业大学 | Welding type IGBT module bonding wire tensile testing device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114193399A (en) | Coaxial anti-rotation revolving body structure component assembling tool and assembling method | |
| CN101644615B (en) | Tube diameter variable clamping pressure sensor | |
| CN111721697A (en) | General measuring device for key friction coefficients of bolt applicable to torque method and corner method | |
| CN102061376B (en) | Clamping device of crankshaft vibration stress relief | |
| US5537883A (en) | Piezoelectric pressure sensor and method of manufacturing the same | |
| CN101890699B (en) | Stay bolt adjusting mechanism of gas turbine pull rod type rotor and operating method thereof | |
| CN201864762U (en) | Clamping device for crankshaft vibratory stress relief | |
| CN112217333B (en) | Fixing mechanism for disc type permanent magnet speed regulator | |
| WO2021047000A1 (en) | Device for filling gaps between sections of sectioned motor | |
| CN114193388B (en) | Coaxial assembly tool and assembly method for arc-shaped counterweight rectangular lamination assembly | |
| CN207318235U (en) | One kind is glued aluminium honeycomb sandwich construction front built-in fitting pull-off test fixture | |
| CN113997231B (en) | Piezoelectric type vibration sensor subassembly assembly appurtenance | |
| CN212264498U (en) | Vibration shelling device for precision casting | |
| CN109676989A (en) | A kind of mechanical press crankshaft-link rod clamp device | |
| CN210238943U (en) | Sleeve device for fastener | |
| CN109048247B (en) | Pre-tightening method of piezoelectric three-dimensional force measuring unit | |
| CN109269930B (en) | Multifunctional stress corrosion test tool device with adjustable distance | |
| CN108759628B (en) | Frock is measured in adjustable gassing valve lead screw subassembly clearance of aircraft | |
| CN211517313U (en) | Small-space dismounting test fixture deep-hole sleeve | |
| CN202141640U (en) | Interlayer structure compressing and shearing test fixture capable of fast changing samples | |
| CN202362208U (en) | Welding strength tester of projection-welding thread assembly | |
| CN220542618U (en) | Device for assisting axial concentricity of opposite-pull steel plates in tensile strength test | |
| CN203650331U (en) | Outer barrel component cementing jig | |
| CN201408097Y (en) | Tensioning force measuring sensor of steel wire rope | |
| RU217979U1 (en) | Thermal insulation bolt |
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 |