CN113864390A - Sliding damping system of flying probe testing machine and damping method thereof - Google Patents
Sliding damping system of flying probe testing machine and damping method thereof Download PDFInfo
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- CN113864390A CN113864390A CN202111229724.XA CN202111229724A CN113864390A CN 113864390 A CN113864390 A CN 113864390A CN 202111229724 A CN202111229724 A CN 202111229724A CN 113864390 A CN113864390 A CN 113864390A
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- sliding
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- bottom plate
- elastic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
Abstract
The invention relates to a sliding shock absorption system of a flying probe testing machine and a shock absorption method thereof, wherein the system comprises a base and a test board, the test board is arranged on the base, the sliding shock absorption system also comprises a shock absorption unit, the shock absorption unit is connected between the base and the test board, the shock absorption unit can relieve the shock acting force between the base and the test board, so that the test board is stable, and the test stability is improved.
Description
Technical Field
The invention relates to a damping system and a damping method thereof, in particular to a sliding damping system applied to a flying probe testing machine and a damping method thereof.
Background
The flying probe tester is a test device for testing circuit boards, and is mainly divided into two categories, one is testing PCBs, and the other is testing PCBAs. A flying probe tester for testing a PCB (printed circuit board) is an instrument for testing the PCB (printed circuit board) with high element arrangement density, multiple layers, large wiring density and small measuring point distance, and is mainly used for testing the insulation and conduction values of the PCB. The tester generally adopts a 'true value comparison positioning method', can monitor the test process and fault points in real time, and ensures the accuracy of the test. The flying probe testing machine for testing the PCBA mainly performs electrical tests on the values, electrical characteristics and the like of electronic components; the flying probe tester has the characteristics of fine pitch, no limitation of grids, flexible test, high speed and the like.
The main principle of the flying probe test is to use 4, 6 or 8 probes to perform high-voltage insulation and low-resistance conduction tests (open circuit and short circuit of test circuit) on a circuit board without making a test fixture, so that the flying probe test is very suitable for testing small-batch sample plates. The flying probe test measures the network of the PCB or the PCBA by utilizing the movement of the probe, the flexibility is greatly increased, and the test program can be directly installed on the circuit board without replacing a clamp for testing different circuit boards. The test is very convenient. The test cost is saved, the time for manufacturing the test frame is reduced, and the delivery efficiency is improved.
The "flying probe" test is the latest solution to some of the major problems of testing. The provenance of a name is based on the functionality of the device, indicating its flexibility. The advent of flying-pin testing has changed the testing method for low-throughput and fast-turn assembly products. Tests that previously required weeks to develop are now available for hours. For Electronic Manufacturing Services (EMS) providers under severe time-to-market (time-to-market) pressure, this back-end capability greatly compensates for time-saving front-end technologies and processes, such as continuous flow Manufacturing and just-in-time logistics.
In practice, the flying probe test mainly utilizes a probe to perform contact test on a circuit board, so that the precision requirement is high, a test workbench of a traditional flying probe test machine is directly and rigidly connected to a base, when the base vibrates, vibration acting force is directly transmitted to the probe to further cause test faults, and the probe is broken under extreme conditions, which is a main defect in the prior art.
Disclosure of Invention
The technical scheme adopted by the invention is as follows: a sliding damping system of a flying probe testing machine comprises a base and a testing platform, wherein the testing platform is arranged on the base and is provided with a testing window, a circuit board to be tested is fixed in the testing window during working, a mechanical arm drives a testing probe to contact the circuit board to complete the testing work, the sliding damping system of the flying probe testing machine also comprises a damping unit, the damping unit is connected between the base and the testing platform and can relieve the vibration acting force between the base and the testing platform so as to enable the testing platform to be stable and improve the testing stability, the damping unit comprises a bottom plate, a sliding top plate and a plurality of elastic pulling pieces, wherein the bottom plate is fixedly arranged at the top of the base, the testing platform is fixedly arranged on the sliding top plate, the sliding top plate is slidably arranged on the bottom plate, and the elastic pulling pieces are connected between the sliding top plate and the base, the sliding top plate is arranged on the bottom plate in a sliding and pressing way through a plurality of elastic pulling pieces.
A sliding damping method for flying probe tester features that a damping unit is arranged between base and test bench, the test board is provided with a test window, the damping unit comprises a bottom plate, a sliding top plate and a plurality of elastic pulling pieces, the bottom plate is fixedly arranged at the top of the base, the test board is fixedly arranged on the sliding top plate, the sliding top plate is arranged on the bottom plate in a sliding way, the plurality of elastic pulling pieces are connected between the sliding top plate and the base, the sliding top plate is arranged on the bottom plate in a sliding and pressing way through the plurality of elastic pulling pieces, the base and the test board can generate vibration acting force when working, the vibration acting force can be relieved by the elastic force of the elastic pulling pieces, the friction force of vibration movement of the whole equipment can be replaced by rolling friction by a sliding mode of the sliding top plate on the bottom plate, and then the effects of shock absorption and noise reduction are achieved.
The invention has the beneficial effects that: the base and the test board can generate vibration acting force when working, the vibration acting force can be relieved by the elastic force of the elastic pulling pieces, so that the shock absorption effect is achieved, meanwhile, the friction force of vibration movement of the whole structure can be replaced by rolling friction by means of the structural design that the sliding top plate is arranged on the bottom plate in a sliding and pressing mode, the weight of a load-carrying part is reduced, inertia is reduced, and the effect of stabilizing equipment is achieved. Specifically, the present invention is designed mainly by using the principle of force interaction. The mutual acting forces of the utilization forces are equal in magnitude and opposite in direction, act on the same straight line and disappear at the same time. The elasticity of the elastic pulling piece is utilized to consume the mechanical vibration force of the equipment, so that the mechanical vibration of the equipment is reduced, and a relatively balanced state is maintained. Meanwhile, the sliding top plate is arranged on the bottom plate in a sliding mode through the sliding top plate, the friction force of the whole structure can be replaced by rolling friction, the weight of a load-carrying part is reduced, inertia is reduced, and the effect of stabilizing equipment is achieved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a perspective view of the present invention.
Fig. 3 is a schematic perspective exploded view of the present invention.
Fig. 4 is a perspective exploded view of the shock-absorbing unit of the present invention.
Fig. 5 is a schematic view of the inclined arrangement of the elastic rod of the present invention.
Fig. 6 is a schematic cross-sectional view of the roller according to the present invention.
Detailed Description
As shown in fig. 1 to 6, a sliding damping system of a flying probe tester comprises a base 1 and a testing platform 2, wherein the testing platform 2 is arranged on the base 1, the testing platform 2 is provided with a testing window 3, a circuit board to be tested is fixed in the testing window 3 during working, and a testing probe is driven by a mechanical arm to contact the circuit board to complete testing work, which is the prior art and not described again here.
This slide shock mitigation system of flying needle test machine still includes the shock attenuation unit, and this shock attenuation unit is connected between this base 1 and this testboard 2, and this shock attenuation unit can alleviate the vibrations effort between this base 1 and this testboard 2, and then makes this testboard 2 more steady to improve the stability of test.
The damping unit comprises a bottom plate 100, a sliding top plate 200 and a plurality of elastic pulling pieces 300, wherein the bottom plate 100 is fixedly arranged at the top of the base 1, the test bench 2 is fixedly arranged on the sliding top plate 200, the sliding top plate 200 is slidably arranged on the bottom plate 100, the elastic pulling pieces 300 are connected between the sliding top plate 200 and the base 1, and the sliding top plate 200 is slidably pressed on the bottom plate 100 through the elastic pulling pieces 300.
The produced vibrations effort of this base 1 and this testboard 2 during operation can be alleviated by the elasticity that a plurality of these elasticity pulled piece 300 to reach absorbing effect, simultaneously, establish the structural design on this bottom plate 100 with the help of this slip roof 200 slip pressure can realize adopting rolling friction to replace the frictional force that overall structure vibrations removed, thereby realize reducing the weight of load part, reduce inertia and reach the stable effect of equipment.
Specifically, the present invention is designed mainly by using the principle of force interaction. The mutual acting forces of the utilization forces are equal in magnitude and opposite in direction, act on the same straight line and disappear at the same time. The elastic force of the elastic pulling member 300 is used to consume the mechanical vibration force of the equipment, thereby reducing the mechanical vibration of the equipment and maintaining a relatively balanced state. Meanwhile, the sliding top plate 200 is slidably arranged on the bottom plate 100, so that the friction force generated by the movement of the whole structure can be replaced by rolling friction, the weight of a load-bearing part is reduced, the inertia is reduced, and the effect of stabilizing the equipment is achieved.
In practical implementation, the bottom plate 100 is provided with a plurality of assembling slots 110, each of the assembling slots 110 is provided with a roller 400, the plurality of rollers 400 are arranged in the bottom plate 100, and a sliding support surface is formed above the bottom plate 100, and the sliding top plate 200 is erected on the sliding support surface, in practice, the rollers 400 can also be designed into structures such as rolling balls, rolling wheels, and the like.
Each elastic pulling member 300 includes an upper fixing block 310, a lower fixing block 320 and an elastic rod 330, wherein the upper fixing block 310 is fixed on the sliding top plate 200, the lower fixing block 320 is fixed on the base 1, and the upper and lower ends of the elastic rod 330 are respectively pivoted in the upper fixing block 310 and the lower fixing block 320.
The elastic rod 330 is obliquely disposed between the upper fixing block 310 and the lower fixing block 320, and the sliding top plate 200 can be slidably disposed on the bottom plate 100 by the elastic pressing force of the elastic rod 330, in practice, the elastic rod 330 is preferably a spring rod, and may also be a cylinder, an oil cylinder, or the like.
In practical implementation, the included angle 331 between the elastic rod 330 and the horizontal supporting ground surface is between 60 degrees and 70 degrees, specifically described as the elastic rod 330 is used for converting mechanical vibration into elastic vibration so that the inclination angle thereof should be controlled within a certain range of 60 degrees to 70 degrees, a certain inclination angle may occur when the gravity and the moving direction of the test platform 2 work, and the test platform 2 can move in the horizontal direction as much as possible by the obliquely arranged elastic rod 330.
In practical implementation, four sets of the elastic pulling members 300 are respectively connected to four corners of the sliding top plate 200.
In a specific implementation, the sliding shock absorbing system further includes a plurality of stoppers 500, the plurality of stoppers 500 are fixed on the top of the bottom plate 100 relative to the sliding top plate 200, each stopper 500 includes a fixing block 510 and a roller 520, the roller 520 is pivoted in the fixing block 510, and the plurality of rollers 520 of the plurality of stoppers 500 are simultaneously rolled and pressed on the outer side surface of the sliding top plate 200, so as to limit the sliding displacement of the sliding top plate 200 and position the sliding top plate 200.
When the concrete implementation, a plurality of the stoppers 500 are arranged on two sides of the sliding top plate 200, when the concrete implementation is performed, the fixing block 510 is provided with a first fixing hole 511, the sliding top plate 200 is provided with a second fixing hole 512 corresponding to the first fixing hole 511, and the transportation fixing screws are assembled in the first fixing hole 511 and the second fixing hole 512, so that the sliding top plate 200 is fixed in the transportation process, the damage of the equipment in the transportation process is avoided, and after the transportation is completed, the transportation fixing screws are detached, and the equipment can be used.
In the specific implementation, the fixing block 510 is an L-shaped buckle plate structure, and has the following functions: firstly, in order to prevent in the transportation, factor such as jolt, the slope inclination is too big leads to 2 centrobaries of this testboard unstable, or skew L type buckle can effectively carry out mechanical spacing to this testboard 2 and be unlikely to appear because the unbalance that this testboard 2 does not fix and cause in the frame. Second, the L-shaped pinch plate is designed with a limiting roller (roller 520) to prevent the test bench 2 from track deviation caused by the over-fast acceleration and vibration of the test bench 2, and the noise can be reduced by rolling friction.
Various structures are possible to implement the function of the roller 400, and a preferred embodiment is described below.
The roller 400 includes a central shaft 410, a flexible ring 420 and a ball unit, wherein the central shaft 410 is pivoted in the mounting groove 110, the central shaft 410 can rotate in the mounting groove 110, the flexible ring 420 is disposed on the central shaft 410, the ball unit is disposed between the central shaft 410 and the flexible ring 420, the flexible ring 420 can rotate relative to the central shaft 410, and the sliding top plate 200 is mounted above the flexible ring 420.
In practice, since the sliding top plate 200 has a large weight, the weight can be distributed by increasing the number of the rollers 400, thereby avoiding the deformation of the rollers 400.
The flexible ring 420 includes a plurality of segments 440, and a flexible connecting rib 450 is connected between any two adjacent segments 440, such that the plurality of flexible connecting ribs 450 connect the plurality of segments 440 together and form the flexible ring 420.
In a specific implementation, the two ends of each segment plate 440 are provided with arc cavities 441, the flexible connecting rib 450 includes a central deforming block 451 and two connecting strips 452, the two connecting strips 452 are respectively connected to the two sides of the central deforming block 451, and the two connecting strips 452 are correspondingly connected to the arc cavities 441 of the two adjacent segment plates 440.
In practice, the cross-sectional shapes of the arc cavity 441, the central deforming block 451, and the connecting strip 452 are circular to facilitate deformation, and the flexible connecting rib 450 is integrally made of an elastic material.
The ball unit includes a plurality of ball bodies 430, a plurality of ball bodies 430 are connected to an inner surface of each of the joint plates 440, the plurality of ball bodies 430 are arranged along a length of the joint plate 440, and a specific number thereof may be determined according to a specific load-bearing condition.
Each of the ball bodies 430 includes a ball 431 and a socket 432, wherein the ball 431 is embedded in the socket 432, and the socket 432 is fixed on the inner surface of the segment plate 440.
In the technical solution of the present invention, since the central rotating shaft 410 can rotate in the assembling groove 110, the flexible ring sleeve 420 can rotate relative to the central rotating shaft 410, and the sliding top plate 200 can be more stably slidably disposed on the bottom plate 100 in a two-stage rotation manner, so as to eliminate vibration and reduce noise, thereby improving the testing stability and effect of the device, and in addition, by virtue of the elastic deformation characteristic of the flexible connecting rib 450, vibration can be further alleviated, noise can be reduced, and the effect can be improved.
As shown in fig. 1 to 6, a sliding damping method of a flying probe tester is to provide a damping unit between a base 1 and a test stand 2, the test stand 2 having a test window 3.
The damping unit comprises a bottom plate 100, a sliding top plate 200 and a plurality of elastic pulling pieces 300, wherein the bottom plate 100 is fixedly arranged at the top of the base 1, the test bench 2 is fixedly arranged on the sliding top plate 200, the sliding top plate 200 is arranged on the bottom plate 100 in a sliding manner, the elastic pulling pieces 300 are connected between the sliding top plate 200 and the base 1, and the sliding top plate 200 is arranged on the bottom plate 100 in a sliding and pressing manner through the elastic pulling pieces 300.
The vibration acting force generated when the base 1 and the test bench 2 work can be relieved by the elastic force of the elastic pulling pieces 300, and the friction force of vibration movement of the whole equipment can be replaced by rolling friction in a manner that the sliding top plate 200 is slidingly pressed on the bottom plate 100, so that the effects of shock absorption and noise reduction are achieved.
In specific implementation, the bottom plate 100 is provided with a plurality of assembling slots 110, each of the assembling slots 110 is provided with a roller 400, the plurality of rollers 400 are arranged in the bottom plate 100, and a sliding support surface is formed above the bottom plate 100, the sliding top plate 200 is erected on the sliding support surface, each of the elastic pulling members 300 includes an upper fixing block 310, a lower fixing block 320 and an elastic rod 330, wherein the upper fixing block 310 is fixed on the sliding top plate 200, the lower fixing block 320 is fixed on the base 1, the upper and lower ends of the elastic rod 330 are respectively pivoted in the upper fixing block 310 and the lower fixing block 320, the elastic rod 330 is obliquely arranged between the upper fixing block 310 and the lower fixing block 320, and the sliding top plate 200 can be slidably pressed on the bottom plate 100 by the elastic pressing force of the elastic rod 330.
In one embodiment, the roller 400 includes a central shaft 410, a flexible ring 420 and a ball unit, wherein the central shaft 410 is pivoted in the mounting groove 110, the central shaft 410 is capable of rotating in the mounting groove 110, the flexible ring 420 is disposed on the central shaft 410, the ball unit is disposed between the central shaft 410 and the flexible ring 420, the flexible ring 420 is capable of rotating relative to the central shaft 410, the sliding top plate 200 is disposed above the flexible ring 420, the flexible ring 420 includes a plurality of segments 440, and a flexible connecting rib 450 is connected between any two adjacent segments 440, and the plurality of flexible connecting ribs 450 connect the plurality of segments 440 together to form the flexible ring 420.
In a specific implementation, the two ends of each segment plate 440 are provided with arc cavities 441, the flexible connecting rib 450 includes a central deformation block 451 and two connecting strips 452, the two connecting strips 452 are respectively connected to the two sides of the central deformation block 451, the two connecting strips 452 are correspondingly connected to the arc cavities 441 of the two adjacent segment plates 440, and the flexible connecting rib 450 is integrally made of an elastic material.
The ball unit includes a plurality of ball bodies 430, a plurality of ball bodies 430 are connected to an inner surface of each segment plate 440, each ball body 430 includes a ball 431 and a socket 432, wherein the ball 431 is embedded in the socket 432, and the socket 432 is fixed to the inner surface of the segment plate 440.
Since the central rotation shaft 410 can rotate in the mounting groove 110, the flexible ring 420 can rotate relative to the central rotation shaft 410, and the sliding top plate 200 can be smoothly and slidably disposed on the bottom plate 100 in a two-stage rotation manner.
Claims (10)
1. The utility model provides a slide shock mitigation system of flying probe test machine, its includes base and testboard, and this testboard sets up on this base, and this testboard has the test window, and the during operation, the circuit board that needs to be tested is fixed in the test window, and the test work is in order to accomplish by arm drive test probe contact circuit board, its characterized in that:
the sliding damping system of the flying probe testing machine also comprises a damping unit, the damping unit is connected between the base and the test board, the damping unit can relieve the vibration acting force between the base and the test board to ensure that the test board is stable,
the damping unit comprises a bottom plate, a sliding top plate and a plurality of elastic pulling pieces, wherein the bottom plate is fixedly arranged at the top of the base, the test board is fixedly arranged on the sliding top plate, the sliding top plate is arranged on the bottom plate in a sliding mode, the elastic pulling pieces are connected between the sliding top plate and the base, and the sliding top plate is arranged on the bottom plate in a sliding and pressing mode through the elastic pulling pieces.
2. The sliding damping system of a flying probe testing machine as claimed in claim 1, wherein: the bottom plate is provided with a plurality of assembling grooves, each assembling groove is internally provided with a roller, a plurality of rollers are arranged in the bottom plate and form a sliding supporting surface above the bottom plate, the sliding top plate is erected on the sliding supporting surface, each elastic pulling piece comprises an upper fixing block, a lower fixing block and an elastic rod, wherein the upper fixing block is fixed on the sliding top plate, the lower fixing block is fixed on the base, the upper end and the lower end of the elastic rod are respectively pivoted in the upper fixing block and the lower fixing block, the elastic rod is obliquely arranged between the upper fixing block and the lower fixing block, and the sliding top plate can be slidably arranged on the bottom plate by means of elastic pressing force of the elastic rod.
3. The sliding damping system of a flying probe testing machine as claimed in claim 2, wherein: the included angle between the elastic rod and the horizontal supporting ground surface is between 60 and 70 degrees.
4. The sliding damping system of a flying probe testing machine as claimed in claim 3, wherein: four groups of elastic pulling pieces are respectively connected to the four corners of the sliding top plate, and the elastic rods are spring rods.
5. The sliding damping system of a flying probe testing machine as claimed in claim 2, wherein: the sliding shock absorption system also comprises a plurality of limiters, the plurality of limiters and the sliding top plate are relatively and fixedly arranged at the top of the bottom plate, each limiter comprises a fixed block and a roller, the roller is pivoted in the fixed block, the plurality of rollers of the plurality of limiters are simultaneously rolled and pressed on the outer side surface of the sliding top plate,
the first fixing hole is formed in the fixing block, the second fixing hole is formed in the sliding top plate corresponding to the first fixing hole, the transportation fixing screws are assembled in the first fixing hole and the second fixing hole at the same time, the effect of fixing the sliding top plate in the transportation process is achieved, and after transportation is completed, the transportation fixing screws are detached and can be used.
6. The sliding damping system for a flying probe testing machine as claimed in any one of claims 2 to 5, wherein: the roller comprises a central rotating shaft, a flexible ring sleeve and a ball unit, wherein the central rotating shaft is pivoted in the assembling groove and can rotate in the assembling groove, the flexible ring sleeve is arranged on the central rotating shaft, the ball unit is arranged between the central rotating shaft and the flexible ring sleeve, the flexible ring sleeve can rotate relative to the central rotating shaft, the sliding top plate is erected above the flexible ring sleeve, the flexible ring sleeve comprises a plurality of sections, flexible connecting ribs are connected between any two adjacent sections, and the sections are connected together by the flexible connecting ribs to form the flexible ring sleeve.
7. The sliding damping system of a flying probe testing machine as claimed in claim 6, wherein: the both ends of each this festival board all are provided with the arc chamber, and this flexible connection rib includes central deformation piece and two connecting strips, and two these connecting strips are connected respectively in the both sides that this central deformation piece warp, and two these connecting strips correspond to be connected in this arc chamber of two adjacent these festival boards, and this flexible connection rib is whole to be made by elastic material.
8. The sliding damping system of a flying probe testing machine as claimed in claim 6, wherein: the ball unit comprises a plurality of ball bodies, the inner surface of each section plate is connected with a plurality of ball bodies, each ball body comprises a ball and an embedding seat, the ball is embedded in the embedding seat, and the embedding seat is fixed on the inner surface of the section plate.
9. A sliding shock absorption method of a flying probe testing machine is characterized in that: a damping unit is arranged between the base and a test bench, the test bench is provided with a test window,
the damping unit comprises a bottom plate, a sliding top plate and a plurality of elastic pulling pieces, the bottom plate is fixedly arranged at the top of the base, the test board is fixedly arranged on the sliding top plate, the sliding top plate is arranged on the bottom plate in a sliding way, the plurality of elastic pulling pieces are connected between the sliding top plate and the base, the sliding top plate is arranged on the bottom plate in a sliding way through the plurality of elastic pulling pieces,
the base and the test board can generate vibration acting force when working, the vibration acting force can be relieved by the elastic force of the elastic pulling pieces, the friction force of vibration movement of the whole equipment can be replaced by rolling friction by a sliding mode of the sliding top plate on the bottom plate, and then the effects of shock absorption and noise reduction are achieved.
10. The sliding damping method for a flying probe testing machine as claimed in claim 9, wherein: the bottom plate is provided with a plurality of assembling grooves, each assembling groove is internally provided with a rolling shaft, a plurality of rolling shafts are arranged in the bottom plate and form a sliding supporting surface above the bottom plate, the sliding top plate is erected on the sliding supporting surface, each elastic pulling piece comprises an upper fixing block, a lower fixing block and an elastic rod, wherein the upper fixing block is fixed on the sliding top plate, the lower fixing block is fixed on the base, the upper end and the lower end of the elastic rod are respectively pivoted in the upper fixing block and the lower fixing block, the elastic rod is obliquely arranged between the upper fixing block and the lower fixing block, and the sliding top plate can be slidably pressed on the bottom plate by means of the elastic downward pressing force of the elastic rod,
the rolling shaft comprises a central rotating shaft, a flexible ring sleeve and a ball unit, wherein the central rotating shaft is pivoted in the assembling groove, the central rotating shaft can rotate in the assembling groove, the flexible ring sleeve is arranged on the central rotating shaft, the ball unit is arranged between the central rotating shaft and the flexible ring sleeve, the flexible ring sleeve can rotate relative to the central rotating shaft, the sliding top plate is erected above the flexible ring sleeve, the flexible ring sleeve comprises a plurality of sections, a flexible connecting rib is connected between any two adjacent sections, the sections are connected together by the flexible connecting ribs to form the flexible ring sleeve,
the two ends of each section plate are provided with arc cavities, the flexible connecting rib comprises a central deformation block and two connecting strips, the two connecting strips are respectively connected with the two sides of the central deformation block, the two connecting strips are correspondingly connected in the arc cavities of the two adjacent section plates, the flexible connecting rib is integrally made of elastic materials,
the ball unit comprises a plurality of ball bodies, the inner surface of each section plate is connected with a plurality of ball bodies, each ball body comprises a ball and an embedding seat, wherein the ball is embedded in the embedding seat, the embedding seat is fixed on the inner surface of the section plate,
because the central rotating shaft can rotate in the assembling groove, the flexible ring sleeve can rotate relative to the central rotating shaft, and the sliding top plate can be stably arranged on the bottom plate in a sliding manner in a two-stage rotating manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111229724.XA CN113864390A (en) | 2021-10-22 | 2021-10-22 | Sliding damping system of flying probe testing machine and damping method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111229724.XA CN113864390A (en) | 2021-10-22 | 2021-10-22 | Sliding damping system of flying probe testing machine and damping method thereof |
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| 贺观: "《跨座式单轨交通车辆》", 30 April 2016, 西南交通大学出版社 * |
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