CN110520690A

CN110520690A - Space flight grade ball bar detection system

Info

Publication number: CN110520690A
Application number: CN201780083432.5A
Authority: CN
Inventors: 储建华; 高霞
Original assignee: Suzhou Keaijia Automation Technology Co ltd
Current assignee: Suzhou Keaijia Automation Technology Co ltd
Priority date: 2017-02-17
Filing date: 2017-02-17
Publication date: 2019-11-29
Anticipated expiration: 2037-02-17
Also published as: CN110520690B; WO2018148917A1

Abstract

A kind of space flight grade ball bar detection system, including pedestal (100), center rotating are provided with a power cylinder (120)；Top plate (300), it is rotatably arranged on pedestal (100), the rotation of top plate (300) bottom centre is provided with a free plate (200), free plate (200) bottom surface offers arc wire casing (210), and limitation activity is in arc wire casing (210) at the top of power cylinder (120)；Turntable (400) is arranged with central axis rotation in top plate (300) upper surface；The first angular displacement ball bar is provided on pedestal (100), it includes semiorbicular first ball bar ruler (141) and the first reading head (142) for being set on the first ball bar ruler (141), and the first reading head (142) is synchronous to be arranged on power cylinder (120) side wall；The second angular displacement ball bar is configured in top plate (300), it includes the second reading head (342) for having the second ball bar ruler (341) of certain arc length and being set on the second ball bar ruler (341), second ball bar ruler (341) is located at top plate (300) periphery, and the second reading head (342) is synchronous to be arranged on turntable (400).

Description

Space flight grade ball bar detection system

Space-level ball grid detection system

Technical Field

[0001] The invention relates to the technical field of precision measurement, in particular to a space-level ball grid detection system.

Background

[0002] The ball grid is a displacement sensor which is distributed in the 70 th century, in the process of detecting mechanical linear displacement or angular displacement, because errors of the formed balls are not continuous and are only periodic, a control system of the ball grid sensor can clearly identify and eliminate the errors, the measurement precision can be infinitely improved, and the errors can approach zero. Ball grids of this type are now used in high-end equipment, and with the understanding and cost reduction, these devices will be used in industries and equipment requiring measurement, including aerospace equipment.

[0003] The existing take-off mode of the spacecraft is vertical launching and inclined rising; the landing is in the same manner as it is reversed. The aircraft which runs in the atmosphere is only influenced by the gravity of the earth, and the spacecraft can be influenced by the gravity of different stars and different directions after being separated from the atmosphere, including the phenomenon of microgravity and no gravity. For the parts running under the actual conditions, if the parts can be truly simulated on the ground or under the laboratory conditions, the matching of the parts including the system is mastered, and the cost of the parts of the spacecraft can be reduced to be common on the premise of ensuring the quality. Similarly, the construction cost of the spacecraft can return to the normal cost under the premise of ensuring the acknowledged safety.

[0004] The Chinese patent numbers are: 201210556612.X and CN203479545U, entitled "multidimensional tilting and swinging combined device", propose a tilting and swinging device which can be used for the test simulation of the real installation position or the movement track of parts used by aircrafts, ships and the like in various laboratories in the current world, but the defects of the tilting and swinging device are as follows: omnibearing swinging and rotation cannot be realized, and the spatial track of motion cannot be accurately measured, namely the real motion track of a test article cannot be accurately simulated, so that the test conditions are limited, and accurate effective data cannot be acquired.

Technical problem

[0005] An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.

[0006] It is still another object of the present invention to provide a space-level ball grid inspection system, which provides a new space simulation exercise device, which can simulate a real exercise process with high precision, and improve the reliability and precision of the measurement data of the test object, especially, the device can be connected to the existing swing platform, vibration platform, rotation platform, acceleration tester, collision machine, weightless chamber and related exercise devices and test devices after being connected to a load, for example, the device can show different exercise situations from launching or taking off to landing or landing of the spacecraft, including the device participating in the work of the spacecraft.

Solution to the problem

Technical solution

[0007] To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided an aerospace grade ball grid inspection system, comprising:

[0008] the device comprises a base, a pair of first supports vertically extending upwards on each radial two sides of the base, a slotted hole longitudinally arranged on each first support, and a power cylinder rotatably arranged at the center of the base;

[0009] the top disc is provided with a pair of second supports which vertically extend in each direction on the radial two sides, the bottoms of the second supports are rotatably arranged on the slotted holes through rotating shafts, a free plate is rotatably arranged at the center of the bottom of the top disc, an arc-shaped slot is arranged at the bottom of the free plate in a combustion mode, and the top of the power cylinder is limited to move in the arc-shaped slot; and

[0010] the rotating table is rotationally arranged on the upper surface of the top disc along with the central shaft, and a plurality of mounting holes for fixing a test article are arranged on the upper surface of the rotating table in a distributed manner;

[0011] the base is provided with a first angular displacement ball grid, the first angular displacement ball grid comprises a semi-annular first ball grid ruler and a first reading head sleeved on the first ball grid ruler, the first ball grid ruler is positioned in a rotating plane of the power cylinder, and the first reading head is synchronously arranged on the side wall of the power cylinder;

[0012] and a second angular displacement ball grid is arranged on the top disc and comprises a second ball grid ruler with a certain arc length and a second reading head sleeved on the second ball grid ruler, the second ball grid ruler is positioned on the periphery of the top disc, and the second reading head is synchronously arranged on the rotating table.

[0013] Preferably, the base center is convexly provided with a pair of rotating shaft seats, the height of each rotating shaft seat is not more than 10 mm, the bottom of the power cylinder is convexly provided with a support with a shaft hole, the support is rotatably supported on the rotating shaft seats through a rotating shaft, and the support is positioned in a gap between the two rotating shaft seats.

[0014] Preferably, the rotating shaft support is fixed on the slotted hole at any height position, and the bottom of the second bracket is rotatably sleeved on the rotating shaft support.

[0015] Preferably, the central protrusion of free board upper surface is provided with first column cap, the corresponding first post hole of being equipped with of central lower extreme of overhead dish, the free board passes through first column cap restriction is rotated in the first post hole, the top protrusion of power cylinder is provided with the second column head, the second column head restriction slides in the arc wire casing, the arc wire casing can be special-shaped wire casing or closed wire casing.

[0016] Preferably, the center of the lower surface of the rotating table protrudes and is provided with a third column head, the center of the upper end of the top plate corresponds to the second column hole, and the rotating table is limited and rotated by the third column head to be arranged in the second column hole.

[0017] Preferably, the outer diameter of the rotating table is larger than that of the top disc, a rack with a certain arc length is arranged at the lower end of the periphery of the rotating table, the peripheral diameter of the rack is between that of the top disc and that of the second ball grid ruler, the rack is arranged downwards, and the rack is located at the periphery of the top disc.

[0018] Preferably, a driving mechanism is arranged at the bottom of the outer side of the top disc, and a gear meshed with the rack is outwards arranged on a driving shaft of the driving mechanism.

[0019] Preferably, the power cylinder is a multi-stage power cylinder, the first reading head is arranged on a cylinder base of the power cylinder, two ends of the first ball grid ruler extend upwards from the base respectively, and the rotating shaft is perpendicular to a plane where the first ball grid ruler is located.

[0020] Preferably, the lower surface of the rotating table is connected with the upper surface of the top disc through a slewing bearing.

[0021] Preferably, the base is provided with a plurality of positioning holes matched with the mounting holes, and the head-tail rotating table of the aerospace-grade ball grid detection system is selectively connected with the base.

Advantageous effects of the invention

Advantageous effects

[0022] The invention at least comprises the following beneficial effects:

[0023]1, the swing process of the top disc is smoother, the phenomenon of blocking is avoided in the swing process, the same inch swing range is wider, a 360-degree rotation process can be provided, and all-dimensional space track simulation is realized;

[0024]2, the whole swing process and the rotation process are accurately measurable, and high-precision space track simulation conditions are provided

And the reliability and the accuracy of test measurement data are improved.

[0025] Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Brief description of the drawings

Drawings

[0026] FIG. 1 is a schematic structural diagram of an aerospace-grade ball grid inspection system at a first view angle; [0027] FIG. 2 is a schematic structural diagram of the aerospace-grade ball-grid inspection system at a second view angle;

[0028] FIG. 3 is an exploded view of an aerospace grade ball grid detection system;

[0029] FIG. 4 is a schematic view of the mounting structure of the power cylinder and the base;

[0030] FIG. 5 is a schematic structural view of a power cylinder;

[0031] FIG. 6 is a bottom view of the free plate in the first embodiment;

[0032] FIG. 7 is a sectional view taken along line A-A of FIG. 6;

[0033] FIG. 8 is a schematic view of a stacked mounting structure of two aerospace-level ball grid inspection systems;

[0034] FIG. 9 is a schematic view of a stacked mounting structure of three aerospace-level ball grid inspection systems;

[0035] FIG. 10 is a bottom view of a free plate in the fourth embodiment;

[0036] fig. 11 is a schematic structural diagram of a space-level ball grid inspection system according to a fourth embodiment.

Best mode for carrying out the invention

[0037] The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description.

[0038] It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

[0039] Example one

[0040] The invention provides an aerospace-grade ball grid detection system, which comprises a base 100, a power cylinder 120, a free plate 200, a top disc 300 and a rotating table 400, wherein the rotating table 400 swings back and forth on the base 100 along with the top disc 300 and freely rotates with an inch test product fixed on the rotating table 400, so that the omnibearing space motion trajectory simulation of the test product is realized and the test system is used for testing experimental data of the test product in the space motion trajectory simulation.

[0041] Specifically, a pair of first brackets 110 vertically extend on each radial two sides of the base 100, a slot 111 is longitudinally arranged on each first bracket 110, a pair of rotating shaft seats 130 are convexly arranged at the center of the base 100, a power cylinder 120 is rotatably arranged on each rotating shaft seat 130, a support 123 with a shaft hole is convexly arranged at the bottom of each power cylinder 120, the support 123 is rotatably supported on the corresponding rotating shaft seat 130 through a rotating shaft, and the support 123 is just positioned in a gap between the two rotating shaft seats 130, so that the bottom of each power cylinder 120 rotates around the rotating shaft and is limited to swing in the gap between the two rotating shaft seats 130.

[0042] A pair of second brackets 310 vertically extend in each radial direction on two sides of the top plate 300, the bottoms of the second brackets 310 are rotatably disposed on the slots 111 through the rotating shaft supports 320, the outer sides of the rotating shaft supports 320 are sleeved in the slots 111 and fixed on the slots 111 at any height position, and the bottoms of the second brackets 310 are rotatably sleeved on the rotating shaft supports 320, so that the top plate 300 can freely swing on the base 100. Before each test, the height of the pivot support 320 fixed on the slot 111 can be manually adjusted to adjust the swing radius of the top plate 300 on the base 100

[0043] The center of the bottom of the top plate 300 is rotatably provided with a free plate 200, specifically, the center of the upper surface of the free plate 200 is convexly provided with a first column cap, the lower end of the center of the top plate 300 is correspondingly provided with a first column hole 350, the free plate 200 is limited by the first column cap to rotate in the first column hole 350, the upper surface of the free plate 200 is attached to the lower surface of the top plate 300 to rotate, so that the situation that in the swinging process of the top plate 300, clearance motion is generated between the free plate 200 and the top plate 300, and the swinging track of the top plate 300 causes errors is avoided.

[0044] The bottom surface of the free plate 200 is provided with a special-shaped wire slot 210, the top of the power cylinder 120 is convexly provided with a second head 121, the second head 121 is limited to slide in the special-shaped wire slot 210, along with the extension and retraction of the power cylinder 120, the power cylinder 120 responds to the movement of the free plate 200, the second head 121 is limited to slide back and forth in the special-shaped wire slot 210, and with an inch, the free plate 200 is pushed to rotate back and forth at the bottom of the top plate 300, and the top plate 300 is pushed to rotate on the base 100 around the rotating shaft support 320, the free plate 200 and the special-shaped wire slot 210 thereof can enable the extension and retraction of the power cylinder 120 to be smoother, the swing angle of the top plate 300 can be controlled by controlling the extension and retraction amount of the power cylinder 120.

[0045] The power cylinder 120 is a multi-stage power cylinder, the power controller 122 of the power cylinder 120 is directly installed on the sidewall of the bottom cylinder base of the power cylinder 120, the top plate 300 swings under the control of the telescopic motion of the multi-stage power cylinder, the height of the rotating shaft base 130 is not more than 10 mm, and the diameter of the arc of the tip of the rotating shaft base 130 is not more than 3 mm. The multistage power cylinder runs in inches under the control of the power controller, and is constrained by the rotating shaft, the multistage power cylinder drives the free plate to rotate and pushes the top disk 300 to swing, when the piston at the top end of the multistage power cylinder rises to the extreme point inches, the power controller determines that the rotating shaft at the bottom of the multistage power cylinder moves slightly towards a certain side of the rotating shaft seat 130 according to a set issuing command and action, the controlled swing of the inch top disk 300 does not have the phenomenon that various devices are jammed due to the middle point, the stroke reduction action commonly performed by the conventional similar devices to avoid the dead halt is thoroughly eliminated, the free and smooth swing of the whole top disk is realized, the power cylinder and the top disk cannot generate the jamming phenomenon, the stretching amount of the power cylinder can be improved, namely the swing radian of the top disk 300, and the swing range of the top disk 300 is larger.

[0046] Rotate platform 400 and rotate the setting at top dish 300 upper surface with the center pin, it is concrete, it is provided with third column head 420 to rotate platform 400 lower surface center protrusion, top dish 300 upper end center corresponds the second cylinder hole of having distributed, rotate platform 400 through third column head 420 restriction rotation in the second cylinder hole, rotate platform 400 lower surface and top dish 300 upper surface laminating rotation, in order to avoid rotating platform 400 and rotate the in-process, it moves and makes and rotate platform 400 motion trail and cause the error to rotate to produce the clearance between platform 400 and the top dish 300 to rotate.

[0047] The external diameter of the rotating table 400 is greater than the external diameter of the top plate 300, the lower end of the periphery of the rotating table 400 is provided with the rack 410 with a certain arc length, the arc length of the rack 410 determines the rotating range of the rotating table 400, the arc range corresponding to the arc length of the rack 410 in the embodiment is 180 degrees, the envelope is on the half perimeter of the rotating table, it can be understood that the arc range corresponding to the arc length of the rack 410 can be 360 degrees, the envelope is on the full perimeter of the rotating table, and the rotating table can realize 360-degree free rotation. The bottom of the outer side of the top disk 300 is provided with a driving mechanism 330, a driving shaft of the driving mechanism 330 is provided with a gear 331 which is meshed with the rack 410 in an extending way towards the outer side of the top disk 300, therefore, when the driving mechanism 330 drives the gear 331 to rotate an inch, the gear 331 can drive the rack 410 to move, and the rotating table 400 is driven to rotate around the center, so that the rotating table 400 can rotate along with the swinging motion of the top disk 300, and with the inch, the rotating table 400 can realize 360-degree rotation, namely, the rotating table provides omnibearing space track simulation and provides test conditions, and a test article arranged on the rotating table 400 can be tested at multiple corresponding space positions and motion tracks, and required test data can be obtained.

[0048] Wherein, in order to measure the swing angle and the space position of the top plate 300, a first angular displacement ball grid is arranged on the base 100, the first angular displacement ball grid comprises a semi-annular first ball grid ruler 141 and a first reading head 142 sleeved on the first ball grid ruler 141, the first ball grid ruler 141 is positioned in the rotation plane of the power cylinder 120, the first reading head 142 is arranged on the cylinder seat of the power cylinder 120, two ends of the first ball grid ruler 141 respectively extend upwards from the base 100, and the rotation axis is vertical to the plane where the first ball grid ruler 141 is positioned, when the power cylinder 120 extends and retracts for an inch, the free plate 200 is pushed to rotate, the top plate 300 is pushed to swing by the same inch, a second column head at the upper end of the power cylinder 120 slides in the arc-shaped wire groove, the power cylinder 120 rotates around the rotation axis 130, the motion track of the first reading head 142 is consistent with the shape of the first ball grid ruler 141, the first ball grid ruler 141 moves back and forth to generate an angular displacement signal of the rotation of the power cylinder 120, the expansion amount of the power cylinder 120 corresponds to the rotation angle of the power cylinder 120, when the first angular displacement ball grid measures the rotation angle of the power cylinder 120, namely the angular displacement signal, the expansion amount of the power cylinder 120 can be calculated, and because the mounting distance precision of the first bracket 110, the second bracket 310 and the rotating shaft support 320 on the slot 111 can be known, when the expansion amount and the rotation angle position inch of the power cylinder 120 are known, the swing angle, namely the space position of the top plate can be known. [0049] In order to measure the rotation angle of the turntable 400, a second angular displacement ball grid is configured on the top disk 300, the second angular displacement ball grid comprises a second ball grid ruler 341 with a certain arc length and a second reading head 342 sleeved on the second ball grid ruler 341, the second ball grid ruler 341 is positioned on the periphery of the top disk 300, the radian range corresponding to the arc diameter length of the second ball grid ruler 341 corresponds to the rack 410 and can be 180 degrees, 360 degrees and the like, the second reading head 342 is synchronously arranged on the turntable 400, when the driving mechanism drives the turntable to rotate an inch, the displacement of the second reading head 342 synchronously rotates on the second ball grid ruler 341, the angular displacement of the turntable is collected in the real inch, the rotation angle of the turntable can be known, and therefore, the turntable swinging along with the top disk is matched with the rotation motion of 360 degrees, the rotating table can realize omnibearing space track simulation, and the whole swinging process and the rotating process are accurate and measurable with the same inch, so that high-precision space track simulation is provided, the reliability and the accuracy of test measurement data are improved, and a test article can be tested with required high precision after being installed on the rotating table.

[0050] The outer diameter of the rack 410 is between the outer diameter of the top plate 300 and the outer diameter of the second ball grid ruler 341, the rack 410 is arranged downwards, and the rack 410 is positioned on the outer periphery of the top plate 300 to form a complete matching structure, so that the space is saved

The rack 410 can be wrapped on the periphery of the top plate 300 by 360 degrees, and correspondingly, the second ball grid ruler 341 is wrapped on the periphery of the rack 410 by 360 degrees, so that the 360-degree free rotation of the rotating table is realized, and the angular displacement is accurately measurable in real inches.

Modes for carrying out the invention

[0051] Example two

[0052] On the basis of the first embodiment, a rotary support is arranged between the lower surface of the rotary table 400 and the upper surface of the top plate 300, and the rotary table 400 is connected with the top plate 300 through the rotary support, so that the rotary table 400 can rotate more smoothly. The upper and lower parts of the slewing bearing are respectively embedded in the rotating table 400 and the top plate 300 so as to reduce the lifting height of the rotating table 400 on the top plate 300.

[0053] EXAMPLE III

[0054] On the basis of embodiment one, be equipped with a plurality of mounting holes that are used for fixed sample at the revolving stage 400 upper surface, the position precision of every mounting hole is fixed, and the sample can be installed on the mounting hole of specific position department as required to the position of sample on the revolving stage is accurate to know, at the space test cun, can the accurate space motion orbit of confirming the sample, and the experimental data that the cooperation was surveyed can the analysis obtain accurate testing result.

[0055] The base 100 is provided with a plurality of positioning holes matched with the mounting holes, and the head-tail rotating table 400 of the aerospace-grade ball grid detection system is selectively connected with the base 100 by aligning, connecting and fixing the mounting holes and the positioning holes.

[0056] As shown in fig. 8, the two space ball grid inspection systems are connected end to end, and the respective first ball grid rulers 141 are vertically arranged, so that the test object fixed on the uppermost rotating table of the assembly can swing and rotate more in multiple directions, and a larger range of space motion trajectory simulation is provided.

[0057] As shown in fig. 9, the three space ball grid detection systems are connected end to end, so that the multi-level ball grid detection systems can be flexibly and changeably spliced to meet the test conditions and enlarge the accurate space simulation capability.

[0058] By analogy, the base of the Nth-level aerospace ball grid detection system is connected with the top disc or the rotating table of the (N-1) th-level aerospace ball grid detection system, and a wider range of space simulation test conditions are provided to realize the purpose of realizing the simulation test, such as

: the part test requirements of moving parts such as ships, aircrafts and the like.

[0059] Example four

[0060] As shown in fig. 10-11, the difference from the first embodiment is that a closed line slot 210 is disposed on the free board 200, the closed line slot 210 is disposed at the bottom of the outer periphery of the free board 200, a suitable special-shaped closed motion slot for obtaining the frequency line of the adaptive top-disk swinging motion is fabricated on the free board 200, a second column head slides in the closed line slot 210, a multistage power cylinder is in a motion range and drives the top disk to swing, the free board 200 corresponds to the swing process of the power cylinder and the top disk, and along with the motion of the free board 200, the rotating platform swings in a reciprocating manner, so that a transient switching stagnation phenomenon is avoided, and the swing process is smoother.

[0061] In the space-level ball grid detection system, the swing process of the top plate is smoother, the phenomenon of jamming cannot occur in the swing process, the same inch swing range is wider, a 360-degree rotation process can be provided, and the omnibearing space trajectory simulation is realized; and the whole swing process and the rotation process are accurately measurable, a high-precision space track simulation environment is provided, the reliability and the precision of test measurement data are improved, and furthermore, a plurality of space-level ball grid detection systems can be spliced to complete the motion track simulation in a larger space range and provide space motion test conditions in a larger range.

[0062] While embodiments of the present invention have been described above, it is not intended to be limited to the applications set forth in the specification and the embodiments, but rather is to be accorded a full scope consistent with the invention, and that various modifications may be readily made by those skilled in the art, and that the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concept defined by the claims and their equivalents.

Claims

Claims

[ claim 1] an aerospace-grade ball grid inspection system, comprising:

the device comprises a base, a pair of first supports vertically extending upwards on each radial two sides of the base, a slotted hole longitudinally arranged on each first support, and a power cylinder rotatably arranged at the center of the base;

the top disc is provided with a pair of second supports which vertically extend in each direction at two radial sides, the bottoms of the second supports are rotatably supported on the slotted holes through rotating shafts, a free plate is rotatably arranged at the center of the bottom of the top disc, an arc-shaped slot is arranged at the bottom of the free plate in a combustion mode, and the top of the power cylinder is limited to move in the arc-shaped slot; and

the rotating table is rotatably arranged on the upper surface of the top disc along with the central shaft, and a plurality of mounting holes for fixing a test article are arranged on the upper surface of the rotating table in a distributed manner;

the base is provided with a first angular displacement ball grid, the first angular displacement ball grid comprises a semi-annular first ball grid ruler and a first reading head sleeved on the first ball grid ruler, the first ball grid ruler is positioned in a rotating plane of the power cylinder, and the first reading head is synchronously arranged on the side wall of the power cylinder;

the top disc is provided with a second angular displacement ball grid which comprises a second ball grid ruler with a fixed arc length and a second reading head sleeved on the second ball grid ruler, the second ball grid ruler is positioned on the periphery of the top disc, and the second reading head is synchronously arranged on the rotating table.

[ claim 2] the aerospace grade ball grid inspection system according to claim 1, wherein a pair of rotating shaft seats are protruded from the center of the base, the height of the rotating shaft seats is not more than 10 mm, a support with a shaft hole is protruded from the bottom of the power cylinder, the support is supported on the rotating shaft seats through a rotating shaft, and the support is located in a gap between the two rotating shaft seats.

The aerospace grade ball grid inspection system of claim 2, wherein said pivot supports are fixed to said slots at any height, and said second bracket bottom is rotatably mounted on said pivot supports.

[ claim 4] the aerospace grade ball grid detection system according to claim 3, wherein a first stud is convexly disposed on the center of the upper surface of the free plate, a first stud hole is correspondingly disposed at the lower center of the top disk, the free plate is limited to rotate in the first stud hole through the first stud hole, a second stud is convexly disposed on the top of the power cylinder, the second stud is limited to slide in the arc-shaped slot, and the arc-shaped slot can be a special-shaped slot or a closed slot.

[ claim 5] the aerospace grade ball grid inspection system according to claim 4, wherein a third stud is protruded from a center of a lower surface of the rotating platform, a second stud hole is formed in a center of an upper end of the top plate corresponding to the second stud hole, and the rotating platform is limited to rotate in the second stud hole by the third stud hole.

[ claim 6] the aerospace grade ball grid inspection system according to claim 5, wherein the outer diameter of the rotating table is larger than the outer diameter of the top plate, a rack having a certain arc length is provided at a lower end of the outer periphery of the rotating table, the outer periphery diameter of the rack is between the outer periphery diameter of the top plate and the outer periphery diameter of the second ball grid ruler, the rack is disposed downward, and the rack is located at the outer periphery of the top plate.

Space grade ball grid inspection system according to claim 6, characterized in that a drive mechanism is provided at the bottom outside the top plate, and a gear engaging with the rack is provided outwardly on the drive shaft of the drive mechanism.

[ claim 8] the aerospace grade ball grid inspection system of claim 7, wherein the power cylinder is a multi-stage power cylinder, the first reading head is disposed on a cylinder base of the power cylinder, two ends of the first ball grid ruler extend upward from the base, respectively, and the rotation axis is perpendicular to a plane on which the first ball grid ruler is located.

Space grade ball grid inspection system according to claim 1, characterized in that said lower surface of said turntable and said upper surface of said top plate are connected by a pivoting support.

The aerospace-grade ball grid inspection system of claim 1, wherein said base has a plurality of pilot holes formed therein for mating with said mounting holes, and wherein a plurality of end-to-end turrets of said aerospace-grade ball grid inspection system are selectively coupled to said base.