346results about "Centering/balancing rotors" patented technology

The invention provides motor assembling equipment and a motor assembling method. The motor assembling equipment comprises a turnover displacement device, an assembling device and a rotor supporting device, and the turnover displacement device is used for clamping and displacement of a stator; the assembling device comprises a clamping module and an ejector pin module, wherein the clamping module comprises a chuck and a yoke part mounting part which can be close to or far away from each other; the ejector pin module comprises two ejector pins which are oppositely arranged and can be close to or far away from each other, and the two ejector pins are coaxial with the chuck; the rotor supporting device is used for supporting the rotor, is arranged below the assembling area and can move horizontally, and the rotor supporting device can move up and down to achieve adjustment and avoidance. According to the motor assembly equipment and the motor assembly method, high-efficiency and high-precision automatic assembly of the rotor module and the stator can be realized, so that the problems of low manual assembly efficiency, poor safety and unstable assembly quality in the prior art are solved.

The utility model discloses stator and rotor assembling equipment for a motor, and the equipment comprises a rack which is provided with a substrate suitable for supporting a motor housing; the frame is arranged on the rack, and a sliding rail extending in the height direction is arranged on the frame; the first supporting plate is located on one side, in the height direction, of the base plate and is in sliding connection with the sliding rail, a first limiting part is detachably arranged on the first supporting plate, and the first limiting part selectively abuts against one end of the motor rotor; the second supporting plate is located on the other side, in the height direction, of the base plate and is in sliding connection with the sliding rail, a second limiting part is detachably arranged on the second supporting plate, and at least part of the second limiting part penetrates through the base plate and selectively abuts against the other end of the motor rotor. According to the stator and rotor combination equipment for the motor, the stator and rotor combination equipment can be used for carrying out stator and rotor combination on various motors with different specifications, and the compatibility is higher.

The invention relates to the technical field of motor assembly tools, and particularly provides an aircraft electric seat motor assembly device. The rotor assembly and stator assembly press-fitting device comprises a workbench, and a rack is fixed to the surface of the workbench; the side clamping mechanism is assembled on the rack and is used for carrying out side clamping and positioning on the stator assembly; the buffer positioning frame is arranged at the top end of the rack and comprises two positioning supporting plates which are horizontally and oppositely arranged; the shaft positioning mechanism is arranged below the rack; and a pressing mechanism. When press fitting is executed, the pressing part drives the rotor part and the positioning supporting plate to descend synchronously, the lifting part pushes the guide cylinder to move upwards, and the rotor shaft enters the position between the two side clamping pieces; according to the device provided by the invention, the precision of press-fitting positioning and the stability of press-fitting operation are greatly improved, the coaxiality of press-fitting cooperation between the rotor assembly and the stator assembly is improved, the uniformity of air gaps is ensured, and the press-fitting quality is improved.

The invention relates to a system (2, 102) for assembling a generator (3, 103), preferably a permanently excited generator (3, 103) of a wind turbine, comprising a rotor (16, 116) and a stator (10, 110). According to the invention a vertical assembly device (4, 104) being connectable to the rotor (16, 116) and the stator (10, 110) is proposed, for guiding the rotor (16, 116) in parallel and coaxially aligned to the stator (10, 110) during assembly, the vertical assembly device (4, 104) comprising a first assembly element (26, 126) being connectable to the rotor (16, 116), a second assembly element (6, 106) being connectable to the stator (10, 110), and guiding means (28, 128) for guiding the first assembly element (26, 126) coaxially aligned to the second assembly element (6, 106).

The invention provides a motor assembling device and an assembling method of a rotor module, the motor assembling device comprises a clamping module, an ejector pin module and a rotor supporting device, the clamping module comprises a first assembling table and a second assembling table which horizontally slide along the X-axis direction, the first assembling table is provided with a chuck, the second assembling table is provided with a yoke part mounting part, and the ejector pin module is provided with an ejector pin. An assembling area is formed between the chuck and the yoke part mounting part; the ejector pin module comprises a first ejector pin and a second ejector pin which horizontally slide in the X-axis direction. The rotor supporting device is arranged below the assembling area and can horizontally move in the X-axis direction, and the rotor supporting device can move up and down to achieve adjustment and avoidance. According to the motor assembling device and the assembling method of the rotor module, automatic assembling of the rotor module can be achieved, the assembling efficiency is improved, the labor cost is reduced, meanwhile, the assembling precision and stability are guaranteed through precise mechanical positioning and automatic control, and the motor assembling device and the assembling method of the rotor module are suitable for the flexible production requirements of rotor modules of different specifications.

The invention relates to a high-precision trial-production assembling machine for an axial magnetic flux motor, and belongs to the technical field of magnetic flux motor assembly.The high-precision trial-production assembling machine for the axial magnetic flux motor comprises a workbench; the stator loading mechanism comprises two mounting frames connected to the workbench in a sliding mode and a driving assembly used for driving the mounting frames on the two sides to be relatively close to or away from each other; the rotor supporting mechanism comprises a supporting seat which is arranged on the workbench and is positioned between the two mounting frames, and a jacking piece which is used for driving the supporting seat to lift; and the rotor jacking mechanism comprises two center seats which are arranged on the workbench and are respectively positioned on the opposite sides of the two mounting frames, and two center shafts which are respectively arranged on the two center seats. The assembling machine can solve the problem of part scrapping caused by strong magnetism and high precision in assembling of the double-stator single-rotor axial flux motor, and ensures the assembling precision of the double-stator single-rotor axial flux motor.

The invention belongs to the technical field of permanent magnet coupling assembly, and discloses a permanent magnet coupling rotor folding tool and an axial force calculation method thereof. The permanent magnet coupler rotor folding tool comprises a cast iron floor, a T-shaped nut block, a sliding bearing seat base, a screw rod, a shaft clamp spring, a sliding bearing seat, an inner rotor supporting flange, a permanent magnet coupler inner rotor, a permanent magnet coupler outer rotor and an outer rotor supporting seat. According to the calculation method, a magnetic force analysis model between a pair of cuboid permanent magnets is taken as an entry, and a magnetic force action principle is mapped between a pair of permanent magnet rings formed by alternately arranging N-S pole paired permanent magnets by virtue of a coordinate transformation and vector superposition method; meanwhile, the influence of a permanent magnet machining and assembling process and a rotor hub material is comprehensively considered, and the axial acting force at different assembling positions when the inner rotor and the outer rotor of the permanent magnet coupler are closed is accurately calculated; the method is clear in solving thought and high in speed, provides theoretical reference for the actual assembly process, and is a method with engineering universality and convenience.

The invention relates to the technical field of motors, in particular to a magnetic self-centering motor assembling method which is applied to a motor and comprises the following steps: forming a rotor assembly; a rotor assembly is rotatably and preliminarily installed on a base through a rotating shaft assembly, an end cover is preliminarily installed on the base, a bearing chamber of the end cover supports an outer ring of a bearing on the rotating shaft assembly through a radial elastic supporting unit, and the radial elastic supporting unit allows the outer ring of the bearing to slightly and radially float; a driving current is applied to the stator assembly, so that the rotor assembly generates a rotation trend or rotates at a low speed, and the rotor assembly is driven to overcome the micro radial rigidity of the radial elastic supporting unit by utilizing the unbalanced magnetic pulling force of interaction between the rotor assembly and the stator assembly; and the rotation axis of the stator assembly is automatically adjusted to a position which tends to be coaxial with the central axis of the stator assembly. The method can actively compensate radial dimension chain errors and assembly deviations accumulated in the previous process.

The present invention relates to the field of motor assembly and discloses a motor stator and rotor assembly device, including a device main body, a bottom frame is provided at the bottom of the device main body, a transfer mechanism that can carry two sets of rotor bodies and stator bodies is slidably provided in the bottom frame, the transfer mechanism can drive the rotor body and the stator body to move up and down, the stator clamping mechanism is provided with a stator automatic positioning mechanism that can automatically determine the position of the stator body, and the device main body is provided with a rotor fixing mechanism that fixes the rotor body by cooperating with the device main body. The beneficial effect of the present invention compared with the prior art is that: the present invention is provided with a stator automatic positioning mechanism, which does not require an additional power source during the entire process of positioning and subsequently resetting the stator body. The stator body can be accurately positioned only through the interaction between mechanical structures, effectively simplifying the power system design of the device and reducing the energy consumption and maintenance costs of the device.

The invention belongs to the technical field of motor assembly detection, and particularly provides a motor stator center deviation measurement device and method, and the device comprises a stator adjustment table, and a first measurement assembly and a second measurement assembly which are symmetrically arranged along the stator adjustment table. The stator adjusting table is used for placing a to-be-detected motor stator; each of the first measuring assembly and the second measuring assembly comprises a supporting frame, a fixed underframe, an axial displacement driving assembly, a ruler group mounting rack, a first measuring ruler group, a second measuring ruler group and a third measuring ruler group; the fixed underframe is arranged on the supporting frame; the axial displacement driving assembly is connected with the fixed bottom frame and the ruler group mounting frame; the first measuring scale group, the second measuring scale group and the third measuring scale group are all mounted on the scale group mounting frame and are matched with one another, so that a plurality of point positions on the inner hole of the motor stator are measured in a three-point circle measuring manner. According to the invention, manual operation is replaced by electrically-driven automatic adjustment, and high speed and high consistency of measurement are realized.

The invention relates to the field of motor assembling, and discloses motor stator and rotor assembling equipment which comprises an equipment body, a bottom frame is arranged at the bottom of the equipment body, a transfer mechanism capable of bearing two groups of rotor bodies and stator bodies is slidably arranged in the bottom frame, and the transfer mechanism can drive the rotor bodies and the stator bodies to move up and down. The stator clamping mechanism is provided with an automatic stator positioning mechanism capable of automatically determining the position of a stator body, and the equipment body is provided with a rotor fixing mechanism which is matched with the equipment body to fix a rotor body. In the whole process of position positioning and subsequent resetting of the stator body, a power source does not need to be additionally arranged, accurate positioning of the stator body can be achieved only through interaction between mechanical structures, the design of a power system of equipment is effectively simplified, and energy consumption and maintenance cost of the equipment are reduced.

An asset management system can be configured to receive at least a portion of a plurality of data and to determine a concentricity of at least one of the rotor or stator. The rotor or stator concentricity can be a vector including an amplitude and an angle and can characterizes a difference between a location of a predetermined center point and a location of a geometric center point of the rotor or stator, respectively. The system can also receive a concentricity vector selection including at least one of the rotor concentricity vector or the stator concentricity vector and can receive a selection of one of the correlated operating parameters. A plot format selection can be received and a graphical user interface (GUI) including a plot can be generated. The plot can include a portion of the selected concentricity vector as a function of the selected correlated operating parameter.

A method for producing a modular arc-shaped motor belongs to the field of motor technology. The method includes the following steps: assembling an intermediate assembly; setting the intermediate assembly shaft on a support portion to position the module mounting portion in a predetermined position; fixing the arc-shaped motor module to be installed in the predetermined position of the module mounting portion; connecting the winding of the arc-shaped motor module to a motor drive controller; applying a set current to the motor drive controller; detecting whether the next adjacent module mounting portion can rotate to the predetermined position; if so, proceeding to step S5; if not, proceeding to step S3; S5: disconnecting the winding from the motor drive controller, and re-executing step S3, repeating this cycle until all arc-shaped motor modules are installed. This method for producing a modular arc-shaped motor achieves the purpose of detecting the pass rate of the stator module units during motor assembly, greatly shortening the overall production cycle of the arc-shaped motor.

The invention relates to a rotor assembly circumferential limiting mechanism and motor assembling equipment applying the same, the rotor assembly circumferential limiting mechanism comprises a limiting pushing module and a lateral limiting module, and the lateral limiting module is used for contacting the side part of a rotor assembly main body, is installed on the limiting pushing module, and is driven by the limiting pushing module to move; the motor assembling equipment comprises a mounting rack, and a first rotor assembly positioning mechanism, a rotor assembly circumferential limiting mechanism and a stator assembly positioning mechanism which are mounted on the mounting rack. According to the circumferential limiting mechanism, rotor assembly center deviation caused by mechanical errors in the stator and rotor assembling process can be effectively reduced, motor assembling equipment can quickly verify the self assembling precision, the precision is easy to guarantee, and in different assembling stages, different rotor assembly positioning structure combinations are switched and used, so that the assembling precision is greatly improved. And concentricity of the combined assembly is guaranteed.

The present disclosure is generally directed to techniques for radial alignment of motor components relative to each other to achieve a motor with a rotor bore having sub-micron end-to-end deviation. In an embodiment, a rotor bore alignment tool is disclosed herein that can be inserted between motor components, and more particularly, apertures / through holes defined by each of the motor components such as housing sections and a stator assembly. The rotor bore alignment tool includes expandable members that can be selectively transitioned to an extended position to cause each of the motor components to be radially aligned prior to securely coupling the same in a so-called "stack" to form a motor. Once the motor components are coupled together, the resulting motor includes a rotor shaft extending from end-to-end that preferably includes a sub-micron deviation of less than 10 microns, and more preferably less than or equal to 5 microns, for example.

A stable installation device of a steam turbine generator unit rotor relates to a rotor installation device of a steam turbine generator, a first supporting plate, a second supporting plate and a third supporting plate are of the same structure, a semicircular plate is arranged at the upper end of a lifting pipe of the third supporting plate, and the lower end of the lifting pipe is fixedly connected to the middle of a height adjusting plate; the front and the back of the lifting opening in the lower surface of the plate body are fixedly connected with the upper ends of supporting pipes respectively, and the lower ends of the supporting pipes are fixed on the upper surface of the bottom plate; the two ends of the height adjusting plate are located on the two sides of the supporting pipe, two adjusting screws penetrate through unthreaded holes, close to the two ends, of the plate body and then are connected with screw holes, close to the two ends, of the height adjusting plate, and the height of the semicircular plate is adjusted through the two adjusting screws. Through mutual cooperation of the first supporting plate, the second supporting plate, the third supporting plate and the stator trolley, stable installation of the stator iron core and the rotor iron core is achieved.

To provide a motor capable of realizing high-speed rotation.SOLUTION: A motor 10 comprises: a shaft 2; at least two bearings 4a and 4b supporting the shaft 2; a magnet 3 supported by the shaft 2 between the two bearings 4a and 4b; a stator 5 enclosing the magnet 3; and a magnetic member 6a and a magnetic member 6b each disposed between the magnet 3 and the bearings 4a / 4b in a length direction of the shaft 2. The magnetic member 6a and the magnetic member 6b have outer diameters that are larger than an outer diameter of the magnet 3.SELECTED DRAWING: Figure 2

The invention relates to an electric spindle assembling method, and relates to the technical field of machine tools. Comprising the following steps: installing a stator in a stator sleeve to form a stator assembly; the stator assembly is installed in the body shell; a rear bearing sleeve is arranged at one end of the body shell; a front cover, a front bearing pack and a locking nut I are sequentially sleeved on the main shaft; sleeving the large end of the inner hole of the rotor assembly into the main shaft; a rear bearing pack and a locking nut III are sleeved in sequence; a guide sleeve is fixedly mounted at the rear end of the spindle; the front end of the spindle is provided with a lifting bolt; the main shaft is hoisted and transferred to the position above the body shell hole, and the center line of the main shaft is adjusted to coincide with the center line of the body shell; the height of the main shaft is reduced, so that the guide sleeve passes through an inner hole of the stator assembly and is led in; the front bearing sleeve is fixedly connected with the body shell through a screw, and the guide sleeve is detached. The guide sleeve is used for guiding on the main shaft, the situation that in the assembling process, parts such as a rotor and a rear bearing set generate side suction with a stator when passing through a stator hole, and consequently the assembling precision is reduced is avoided, assembling is convenient, and the assembling precision of the main shaft is improved.

The utility model discloses an automobile motor rotor and stator automatic press-fitting device, which comprises a rack, a conveying line transversely penetrating through the rack, and a stator assembly supported by the conveying line through a transfer carrier. A downward pressing mechanism is installed on the rack above the conveying line, a grabbing mechanism for grabbing the rotor assembly is installed on the bottom face of the downward pressing mechanism, and a plurality of guide rods abutting against the top face of the rotor assembly are downwards installed on the bottom face of the downward pressing mechanism located on the inner side of the grabbing mechanism; a jacking mechanism is installed on the rack located below the conveying line and located under the downward pressing mechanism, and an upper jacking rod in the jacking mechanism upwards penetrates through the stator assembly and then abuts against the bottom face of the rotor assembly; the grabbing mechanism grabs the rotor assembly, so that the guide rod abuts against the top face of the rotor assembly, the jacking mechanism works to jack up the stator assembly, the upper ejector rod ascends to abut against the bottom face of the rotor assembly, the grabbing mechanism loosens, the rotor assembly is reliably installed in the stator assembly in combination with downward pressing of the downward pressing mechanism, and automatic rapid installation is achieved. And the installation efficiency and effect are effectively ensured.

The invention belongs to the technical field of motor assembly, and particularly relates to a large permanent magnet motor stator and rotor assembling device which comprises a base plate, an annular platform plate is installed on the base plate through a first supporting plate, and a stator is placed on the platform plate; a positioning cylinder is installed on the base plate, and a guide shaft is installed in the positioning cylinder in an inserted mode. A positioning frame is arranged in the stator and is arranged on the guide shaft in a sliding manner; the positioning frame gradually moves from the upper end to the lower end in the stator along with the downward assembly of the rotor into the stator, and a magnet vane is mounted on the outer side of the rotor; the device is simple in structure, the lower end and the upper end of the guide shaft can be positioned and fixed together, the phenomenon that the lower end and the upper end of the guide shaft attract each other during assembly is avoided, the uniformity of a circumferential air gap when a rotor enters a stator is affected, the influence of unilateral magnetic force on the assembly process is avoided or reduced, and it is guaranteed that assembly is conducted smoothly and the assembly quality is good.

A rotary electric machine (100, 660) arranged as a brushless electric ring motor is described and includes a rotor (50, 650) that is disposed within a stator (20, 620) and arranged to rotate on a guide element (13, 613). The rotor (50, 650) has a plurality of ferritic elements (60, 664) arranged on an outer surface (54, 663), and the stator (20, 620) is an annular device having a plurality of electro-magnetic elements (25, 668) arranged on an inner portion (32) between first (21, 667) and second flanges (22, 669). The first and second flanges both include an annular ring (652) that is fabricated from a non-magnetic material and has a plurality of ferromagnetic elements (28). The ferromagnetic elements (28) are magnetically coupled to corresponding ones of the electro-magnetic elements (25, 668) to exert magnetic force on the ferritic elements (60, 664) of the rotor when the electro-magnetic elements (25, 668) are activated. The rotary electric machine may operate as a first thrust generating system that is upstream of a second thrust generating system for a turbojet engine.

The invention discloses a dual-motor rotor press-fitting boxing device which comprises a press-fitting support, a box body tray is arranged on the press-fitting support, a supporting support used for supporting the box body tray is arranged at the bottom of the box body tray, an ejector rod penetrating hole is formed in the box body tray in a penetrating mode, and a rotor lower supporting device is arranged below the box body tray. A lower ejector rod extends upwards from the rotor lower supporting device, a box body pressing device capable of pressing a motor box body to be installed on the box body tray is installed on the press-fitting support, a rotor pressing plate is arranged above the box body tray, and a rotor press-fitting driving device capable of driving the rotor pressing plate to move up and down is installed on the press-fitting support. The rotor pressing plate is provided with an upper ejector rod which has the same center line with a rotor mounting hole in the corresponding motor box body to be mounted, and when the lower ejector rod extends upwards, the lower ejector rod can penetrate through the ejector rod penetrating hole and is matched with the upper ejector rod to clamp the two ends of a motor shaft of a motor rotor arranged above the box body tray; and the rotor is fed into a rotor mounting hole of the motor box body to be mounted.

A receiving system (9) for a device for receiving a unit is shown and described, wherein the unit is rotatably mounted about an axis of rotation (5) on a frame (7) of the device in a received state, wherein a second connecting section (23) of a second receiving unit (13) has a contact surface (43) that is at least partially circumferential and radially outwardly extending, which is designed such that, in a connected state, it forms an interference fit with a contact surface (45) of a second connecting section (17) of a first receiving unit (11) that is at least partially circumferential and radially inwardly extending, such that at least a section of the second connecting section (17) of the first receiving unit (11) is deformed radially outwardly,that a contact surface (33) of the second connecting section (17) of the first receiving unit (11), which is at least partially circumferential and radially outwardly directed, and a contact surface of a section of the device, which is at least partially circumferential and radially inwardly directed, are force-fit together. Furthermore, a first receiving unit (11), a second receiving unit (13), and a device are shown and described.

A rotor assembly 10 for a brushless permanent magnet motor, the rotor assembly comprising a shaft 32; a permanent magnet 23 mounted to the shaft; and a rotor assembly component 20 mounted to the shaft

Embodiments of the present application provide motor and a machine tool. The motor includes a motor shaft and an optical encoder; the optical encoder is to be installed on the motor shaft, further includes a balancing disk, configured to be installed on the motor shaft, and located inside the optical encoder, a diameter of a circle formed by balancing holes on the balancing disk is larger than the optical encoder and a fixing element of the optical encoder, so as to enable the balancing holes to be operated without uninstalling the optical encoder; and a cover plate, configured to be located between the balancing disk and the optical encoder, and fixed on an end shield, the cover plate comprises: at least one operation window for exposing some of the balancing holes; and a mounting structure for fixing the fixing element of the optical encoder. The technical solutions of the present application can install a balancing disk on a motor.

The utility model relates to the field of linear motors, and provides a motor rotor assembling structure which comprises a workbench, lifting devices are fixedly installed at the two ends of the top face of the workbench respectively, a first hydraulic rod is fixedly installed at the movable end of each lifting device, a rotating wheel is rotationally connected to the outer end of each first hydraulic rod, and a placing base is arranged in the middle of the workbench. The lifting devices are arranged at the two ends of the top face of the working table respectively, lifting adjustment of the rotating wheel is achieved through work of the lifting devices, the rotating wheel adapts to the installation height of a rotor, the rotating wheel rotates and rolls outside the circumference of the rotor, the rotating wheel rotates, and therefore the rotating wheel can stably rotate, and the rotating wheel can stably rotate. The position of the rotor can be better adjusted, and the rotor can be better assembled.

To provide a rotor and a compressor capable of suppressing unbalance of a body of rotation at a low cost compared to a case when a balance weight is added.SOLUTION: A rotor (10) has a rotor core (30) and a plurality of magnets (32) arranged in a circumferential direction of the rotor core and embedded in the rotor core. The plurality of magnets include a first magnet (32A) and a second magnet (32B) whose at least any of thickness, width, angle pitch is different from that of the first magnet.SELECTED DRAWING: Figure 2

The present invention belongs to the field of locomotive maintenance technology and discloses a motor assembly device comprising a base unit, a rotor positioning unit, and a stator adjustment unit. The rotor positioning unit comprises a rotor fixing mechanism and a rotor hoisting mechanism. The rotor fixing mechanism is slidably connected to the base unit along the X direction, and the rotor hoisting mechanism is mounted on the rotor fixing mechanism and configured to hoist the motor rotor. The stator adjustment unit is mounted on the base unit and configured to position the motor stator. The rotor fixing mechanism slides on the base unit and can adjust the distance between the motor rotor and the motor stator. The motor assembly device reduces reliance on manual labor, achieves high assembly process accuracy, improves operational efficiency, and eliminates the safety hazards of high-altitude lifting.

The invention relates to a power transmission assembly (10), in particular an inductive power transmission assembly (10), and to a rotary transformer for transmitting power to a rotor assembly (20) of an externally excited electric machine (30), comprising a carrier lance (4), which is connected to a primary assembly (3); a bearing end (1); and an inner installation securing means (2), which pre-installs the primary assembly (3) in the bearing end (1) and remains in the bearing end after the power transmission assembly (10) is installed.

The invention discloses a jacking aligning device which comprises a first bearing seat, a first mounting cavity is coaxially formed in the upper portion of the first bearing seat, a cushion block is coaxially arranged at the cavity bottom of the first mounting cavity, a second mounting cavity is coaxially formed in the upper portion of the cushion block, three steel balls are placed in the second mounting cavity, and a second bearing seat is connected to the upper end of the first bearing seat. The lower end of the second bearing seat extends into the first mounting cavity and is provided with a limiting cavity, the upper end of the second bearing seat is coaxially and rotatably connected with a bearing cover through a thrust roller bearing, and the upper end of the bearing cover is coaxially connected with a positioning connecting piece; at least three self-aligning rotation-stopping bolts used for adjusting the horizontal position of the second bearing seat are evenly arranged on the first bearing seat in the circumferential direction, and the screw rod ends of the self-aligning rotation-stopping bolts are in threaded connection with the first bearing seat and then are inserted into the second bearing seat in the radial direction. According to the self-aligning device, under the working condition that the three steel balls bear a large load during jacking at the same time, the stability of supporting and translation self-aligning of the device can be improved, and the self-aligning efficiency can also be improved.