28results about How to "Guaranteed motion accuracy" patented technology

The application belongs to the technical field of reaction kettles, and particularly relates to a vertical stainless steel reaction kettle, which comprises a kettle body, a separation cover fixedly connected to the top of the inner side of the kettle body, a sliding connection hole formed in the bottom of the separation cover, a first sealing ring clamped on the inner wall of the sliding connection hole, a stirring shaft slidably connected to the sliding connection hole through the first sealing ring, and a transmission groove formed in the top end of the stirring shaft; a driving device is installed on the top of the kettle body, a driving shaft is fixedly connected to the output shaft of the driving device, a spline is arranged on the shaft surface of the driving shaft, and the driving shaft is slidably connected to the transmission groove through the spline; in the application, the downward guiding of the material by the first spiral blade and the upward pushing of the bottom material by the inclined paddle blade are combined with the lifting movement of the stirring shaft driven by the hydraulic cylinder and the first spring to realize the up-and-down convection circulation of the material in the kettle body, effectively prevent the deposition, eliminate the stirring dead zone, and improve the space coverage capacity of the first spiral blade.

The utility model relates to the technical field of planar motors, and provides a planar motor with a supporting structure, which comprises a mover, a stator and a supporting structure, the mover and the stator are arranged at intervals along the vertical direction, a permanent magnet is arranged in the mover, a plurality of electromagnetic coils are arranged in the stator, and the supporting structure is arranged on the mover. The electromagnetic coil and the permanent magnet act to enable the mover to be supported above the stator in a suspended mode, a first installation groove is formed in the side face, facing the stator, of the mover, or a second installation groove is formed in the side face, facing the mover, of the stator, and one side of the supporting structure is arranged in the first installation groove or the second installation groove. And the other side of the supporting structure is movably connected with the stator or the rotor, so that the rotor can horizontally move relative to the stator. By arranging the supporting structure, magnetic suspension supporting and rigid supporting of the supporting structure exist between the rotor and the stator at the same time, the load capacity of the rotor can be improved, the moving resistance of the rotor can be reduced, and the motion precision of the planar motor can be guaranteed.

The utility model relates to injection mold technical field especially is involved in a kind of multi-meridian cup body injection mold based on compact design of line position, including mutually matched upper die main body and lower die main body, upper die main body and lower die main body between being provided with multiple die pin assemblies, and upper die main body is provided with the glue inlet system that butt joins in die pin assembly, lower die main body is provided with the ejection mechanism that butt joins in die pin assembly, die pin assembly includes mutually butt-joined upper die pin and lower die pin, upper die pin is provided with product outside profiling groove, upper die pin is also provided with the glue inlet component that butt joins product outside profiling groove with glue inlet system;By integrating line position slider in the side line position sliding groove of ejector plate, compact design of line position is realized in combination with shovel base, elastic member and limiting structure, the space occupied by line position mechanism is greatly reduced, so that multiple die pin assemblies can be arranged in smaller size, multi-meridian injection molding is realized, and space utilization and production efficiency are effectively improved.

This invention discloses a ZR axis module and a rotary head mechanism, relating to the field of semiconductor packaging equipment technology. The ZR axis module includes a mounting base, a first drive structure, a second drive structure, and a dynamic balancing structure. The mounting base is eccentrically fixed to the disk body. The first drive structure is movably mounted on the mounting base and extends radially along the disk body, driving the end effector to rotate. The second drive structure is mounted on the mounting base, parallel to and driven by the first drive structure, driving the first drive structure to reciprocate radially along the disk body. The dynamic balancing structure is mounted on the mounting base and drives the first and second drive structures, ensuring that the centrifugal forces generated by the first and second drive structures cancel each other out when the disk body rotates. The technical solution provided by this invention achieves dynamic balance kinetic energy of the ZR axis module, thereby ensuring operational stability and motion accuracy while aligning the movement direction of the end effector with the centrifugal force.

The invention relates to the technical field of universal testing machines, in particular to a clamping device for a universal testing machine. Comprising a machine body with an upper cross beam and a lower cross beam, clamps are arranged on the upper cross beam and the lower cross beam respectively, at least one clamp comprises a shell with an opening in the upper end, a transmission block driven by a lifting mechanism is installed in the shell and provided with a wedge-shaped groove with an opening in the upper end, and a left clamping block and a right clamping block are installed in the wedge-shaped groove. The left side surface of the left clamping block and the right side surface of the right clamping block are consistent with the left surface and the right surface of the wedge-shaped groove in inclination angle, and the width of the lower bottom of each clamping block is smaller than 1 / 2 of the width of the lower bottom of the wedge-shaped groove and larger than 1 / 2 of the width of an upper end opening of the wedge-shaped groove. Transverse connecting structures are arranged on the two sides of the upper portions of the two clamping blocks, transverse guide grooves are formed in the upper end of the shell, and the outer ends of the transverse connecting structures are located in the transverse guide grooves and matched with springs in the transverse guide grooves. According to the invention, universal, efficient and reliable clamping of various samples is realized, and the accuracy and repeatability of testing are improved.

The utility model belongs to the technical field of lithium ion batteries, and particularly relates to a material pressing device of a polymer battery turntable mechanism. Comprising a bottom plate mounted on an equipment turntable mechanism, a supporting structure mounted on the bottom plate, a power mounting assembly mounted on the supporting structure, a power source mounted on the power mounting assembly, a connecting part mounted on the power source and a guide part mounted on the connecting part, the elastic component is matched with the guide component; and the pressing component is arranged on a component connected with the guide component. According to the device, through cooperation of the guide component, the movement precision of the device in the pressing process is effectively guaranteed, the pressing operation is more accurate, and the battery machining quality and stability are improved.

The utility model relates to the technical field of packaging machines, in particular to a wire hooking mechanism for a packaging machine. Comprising a U-shaped main frame, a push rod and a power mechanism for driving the push rod to reciprocate are arranged on the U-shaped main frame, a moving frame is slidably arranged on the U-shaped main frame, a moving plate is arranged at one end of the moving frame, and one end of the push rod is fixedly connected with the moving plate. Sliding rails matched with the moving frame are arranged on the U-shaped main frame, the power mechanism drives the moving frame to reciprocate along the sliding rails, avoiding grooves corresponding to the sliding rails are formed in the upper end and the lower end of the moving plate, and guide rotating rollers are rotationally arranged on the two sides of the avoiding grooves. When in use, the device is high in stability, the deformation problem caused by impact load is weakened, and the service life of equipment is prolonged.

The utility model belongs to the technical field of bearings, and particularly relates to a triangular bearing assembly which is characterized by comprising a guide rail body, a sliding sleeve, balls, an end plate and an end cover, the cross section of the guide rail body is a regular triangle, the sliding sleeve is a regular triangle annular body and is sleeved on the guide rail body, at least two adjacent surfaces of the guide rail body are symmetrically provided with grooves, the balls are arranged in the grooves, and the end plate is arranged on the guide rail body. The grooves and the grooves in the inner surface of the sliding sleeve form a roller path, the roller path is communicated with a covered channel in the sliding sleeve to form a ball circulating channel, and the turning positions of the ball circulating channel are located in the end covers at the two ends of the sliding sleeve; a connecting seat plate is arranged on the surface of the sliding sleeve; two ends of the guide rail body are connected with end plates. The utility model has the beneficial effects that the combined structure of the balls and the guide rail is used as a linear bearing, so that the friction coefficient in the moving process of a moving body can be reduced, the deformation and waist collapse of the guide rail in an overturning stress state can be effectively prevented, and the linear bearing is suitable for application occasions of various industrial machines such as precision machine tools, industrial robots and the like.

The utility model provides an adjustable air window for a coal mine, which belongs to the technical field of mine ventilation and comprises a frame body and a plurality of louvre blades, the louvre blades are respectively and uniformly arranged in a hollow cavity of the frame body through a rotating shaft, one end of the rotating shaft is provided with an adjusting gear, and the adjusting gear is meshed with an adjusting rack. The adjusting rack is connected with a sliding mechanism, a servo motor is arranged on one side of the frame body, the output end of the servo motor is connected with a transmission mechanism, and the transmission mechanism is connected with a rotating shaft. The transmission mechanism comprises a plum coupling, a corner device, a pin coupling and a speed reducer, the output end of the servo motor is connected with the speed reducer, the speed reducer is connected with the corner device through the pin coupling, and the corner device is connected with one end of the rotating shaft through the plum coupling. Through the design of the transmission mechanism and the sliding mechanism, the transmission efficiency can be effectively improved, accurate adjustment of the ventilation quantity is achieved, and safety, reliability, high efficiency and energy conservation are achieved.

An automatic injection molding insert implanting clamp comprises a carrying table and a clamp body. The platform deck is provided with a first positioning piece and a second positioning piece which are used for positioning an aluminum row and a lining correspondingly, the clamp comprises a mounting plate, an aluminum row feeding mechanism, a lining feeding mechanism and a finished product taking mechanism, and the aluminum row feeding mechanism, the lining feeding mechanism and the finished product taking mechanism are arranged on the mounting plate and used for sucking the aluminum row and feeding, clamping the lining and feeding and sucking an injection molding finished product correspondingly; in addition, the carrying table is connected with the connecting frame through a buffering mechanism, and the mounting plate is provided with a guide column, a limiting column, a mold locking mechanism and an air blowing nozzle. According to the automatic injection molding insert implanting clamp, automatic insert implanting and finished product taking can be achieved, and the injection molding efficiency and precision are improved.

The application relates to a multifunctional mobile platform and processing system, which comprises a mobile table, a plurality of processing assemblies and detection assemblies are connected to the mobile table, and the working ends of the processing assemblies and the detection assemblies are adapted to pass through through grooves on the mobile table and act on workpieces below the mobile table; a plurality of connecting structures are arranged on the surface of the mobile table; two supporting tables are arranged at intervals in the width direction of the supporting tables, and the mobile table is supported by the two supporting tables; a plurality of sliding assemblies are arranged on each supporting table, the sliding assembly comprises a sliding rail and a plurality of sliding blocks, the sliding rail is laid on the top surface of the supporting table in the length direction of the supporting table, and the plurality of sliding blocks are slidably arranged on the sliding rail. The mobile table is transversely arranged and slidably arranged on the two supporting tables through the sliding assembly, the through grooves are arranged on the mobile table, the processing and detection assemblies are conveniently installed, the processing integration is improved, and the movement precision is ensured.

The utility model discloses an isolation equipment for chemical safety, including module connecting mechanism, fixed clamping mechanism and clamping auxiliary mechanism, module connecting mechanism includes side plate, top cover, door body, angle plate, clamping pipe and clamping rod, fixed clamping mechanism includes guide swing frame, guide swing groove, centripetal frame, centripetal groove and embedding block, and the clamping auxiliary mechanism includes the guide swing frame, guide swing groove, centripetal frame, centripetal groove and embedding block. And the module connecting mechanism realizes standardized assembly and quick connection of the isolation equipment. Through the combined design of the angle plates, the clamping pipes and the clamping rods, the top cover and the side plates can be rapidly and accurately positioned and firmly connected, accurate centripetal locking of the clamping rods by the embedded blocks is achieved through the fixed clamping mechanisms, the connection strength and stability are remarkably improved through the double-locking design, and vibration and impact in the chemical environment can be effectively resisted.

The utility model relates to a hole milling chiseling machine, and belongs to the technical field of engineering construction. Comprising a machine body and a crawler-type chassis assembly, crawler wheel assemblies are arranged on the two sides of the crawler-type chassis assembly, a power assembly is integrated on the machine body, a platform lifting adjusting device for driving the construction platform to ascend and descend is installed on the front side of the machine body, and the platform lifting adjusting device is connected with the crawler-type chassis assembly. And the milling chiseling head assembly is mounted on the construction platform through the mechanical arm assembly. The hole milling and chiseling machine has the advantages that the mechanical arm assembly is additionally arranged, the work freedom degree of the milling and chiseling head assembly can be expanded, the limitation of single-freedom-degree work of traditional chiseling equipment is broken through, the mechanical arm assembly is matched with the platform lifting adjusting device in a cooperative mode, and the work flexibility of the hole milling and chiseling machine is improved. A hole to be chiseled can be manually and rapidly positioned, manual adjusting time is shortened, chiseling work is completed through a simple mechanical structure, time and labor are saved, stability is good, operation is convenient, and mass production can be achieved.

The utility model relates to the technical field of rehabilitation auxiliary instruments, and discloses an auxiliary device for a getting-up device, which comprises a backrest frame, the inner side of the backrest frame is slidably connected with a sliding frame extending to the outside of the backrest frame, the top of the sliding frame is provided with a clamping groove, and a magnetic piece is fixedly arranged in the clamping groove. A clamping groove is formed in the sliding frame, a rotating frame extending out of the clamping groove is rotationally connected into the clamping groove, a semicircular groove is formed in the outer portion of the rotating frame, the limiting assembly limits the rotating frame through the semicircular groove, a supporting hook is fixedly installed on the outer portion of the rotating frame, and the limiting assembly for limiting the rotating frame is fixedly installed on the outer side of the sliding frame. The limiting assembly comprises a first sliding sleeve fixed to the outer portion of the sliding frame, and a spring is fixedly installed on the inner wall of the sliding sleeve. The auxiliary device for the getting-up device has the advantages that the trunk position of the human body can be relatively fixed through the armpits, and therefore the human body is prevented from sliding down in the getting-up process.

The utility model discloses a rotary welding gun welding robot which comprises a base, a robot assembly is arranged on the base, a switching device is arranged at one end of the robot assembly, the switching device comprises a fixing block, a plurality of moving grooves, a welding head, a moving rod, a middle pipe, a connecting pipe, a driving wheel, a driven wheel, a strip-shaped groove, an inclined block and a mounting frame, and the moving grooves are formed in the fixing block. The welding head is mounted at one end of the moving rod, the moving rod penetrates through the moving groove and the middle pipe to be connected with the fixing block and the mounting frame, one end of the connecting pipe penetrates through the moving rod to be connected with the welding head, the other end of the connecting pipe penetrates through the strip-shaped groove to extend into the middle pipe, the strip-shaped groove is formed in the side wall of the middle pipe, and the inclined block is mounted on the inner side of the mounting frame. The adjusting device comprises a connecting frame, an inner gear and an outer gear, the mounting frame is connected with the connecting frame, the inner gear is mounted on one side of the mounting frame, and the problems that a traditional device is insufficient in technological adaptability and low in adjusting efficiency are solved.

The embodiment of the invention provides special-shaped label attaching equipment and method, and relates to the technical field of labeling equipment. The special-shaped label attaching equipment comprises a labeling machine body, an ejection forming assembly and a labeling platform, the ejection forming assembly is connected with the labeling machine body, and the labeling platform is matched with the ejection forming assembly in an aligned mode; the ejection forming assembly comprises a horizontal buffering assembly, a vertical driving assembly and an ejection assembly. According to the embodiment of the invention, a plane label is pre-molded into a special-shaped surface structure through the ejection molding assembly, and can be directly adapted to labeling of special-shaped workpieces with curved surfaces, concave-convex surfaces and the like, so that the application scene of equipment is greatly widened; and the Z shaft adopts a buffer guide and durable air pipe structure, so that bending abrasion in reciprocating motion is reduced, the service life of the air pipe is prolonged, the frequent disassembly and replacement process is omitted, and the equipment utilization rate is remarkably improved.

The application relates to a self-adaptive pressure regulating valve for a static pressure support bearing (platform) of high-precision numerical control machining equipment, in particular to a compact embedded self-adaptive pressure regulating valve, which comprises a valve core, a valve sleeve, a spring and a cover plate; the whole structure is compact, can be installed in a support table of the static pressure support bearing in a plug-in mode, is convenient to manufacture and install, is convenient to replace, reduces the volume of the related parts of the support table; meanwhile, the throttling effect of the gap throttling part is obvious, the throttling length is very easy to adjust, the flow rate can be well changed through the timely adjustment of the throttling length, and the effect of regulating effective oil supply is achieved; meanwhile, the self-feedback regulation function of the pressure change of the upper cavity of the valve core is realized by the pressure change of the upper and lower cavities, the flow-through and throttling effects of the convex shoulder I of the valve sleeve and the self-control of the discharge flow rate of the oil discharge port.

The utility model discloses a sorting robot for circuit board waste recovery relates to circuit board waste recovery technical field, including support frame, the inside movable setting of support frame has two groups longitudinal slide base, the bottom of longitudinal slide base is provided with the traction plate, the meshing drive of gear interval through three drive sprocket, driven sprocket, range sprocket, the rotation of the rotating shaft is converted to the swing of drive arm, since the jaw is hauled by the traction link, so when the jaw overturns to a certain angle downward and cannot continue to overturn, the rotation of driven sprocket and range sprocket can drive the horizontal transverse motion of jaw at this moment, thereby realize the stable clamping to circuit board waste board, thereby the jaw will carry out overturning motion first when clamping the waste board, then carry out horizontal motion, guarantee can form the stable clamping to the thin waste board at the same time, also reduced its required motion space, provides great convenience for the production process of circuit board.

The utility model relates to the technical field of pipeline welding seam detection, and discloses a high-precision pipeline welding seam nondestructive testing device which comprises an X-axis base, a Y-axis sliding table and a Z-axis lifting stand column, a displacement mechanism used for adjusting the detection position is arranged on the Z-axis lifting stand column, and a rotary detection ball mechanism used for pipeline welding seam nondestructive testing is arranged on the displacement mechanism. The rotary detection ball mechanism comprises a supporting frame installed on the displacement mechanism, one end of the supporting frame is fixedly connected with a base plate, one end of the base plate is provided with an annular sliding table, the outer side of the annular sliding table is fixedly connected with an annular gear, and the end, away from the base plate, of the annular sliding table is provided with an imaging adjusting mechanism. The rotary detection ball mechanism realizes X-axis, Y-axis and Z-axis linear motion through the X-axis base, the Y-axis sliding table and the Z-axis lifting stand column, and multi-angle rotation is realized through the displacement mechanism, so that the device can perform welding seam detection on complex pipelines with different angles or shapes, and the detection efficiency of the device is effectively improved.

This invention discloses a 3D printing device for metal printing, belonging to the technical field of 3D printing devices. Specifically, it includes a printing stage structure and a laser cladding module disposed within a LENS system. The laser cladding module is positioned above the printing stage structure. The main body of the printing stage structure is a rotatable lifting stage. Removable snap-fit ​​mounting seats are installed at both the top and bottom of the lifting stage. A printing substrate is fixedly connected to the surface of the snap-fit ​​mounting seats. The laser cladding module performs metal workpiece forming and printing on the printing substrate. After printing is completed, the lifting stage automatically flips over to continue printing on a second printing substrate. This invention effectively recovers scattered metal powder during the printing process through a vibration mechanism and flipping action, combined with the protective design of a sealed working chamber. This powder recovery method reduces powder waste and lowers the potential hazards of open powder handling.

This utility model relates to a combined servo motor capable of rotary and linear motion. It solves the technical problem of large space occupation in existing motors capable of rotary and linear motion. It includes a motor housing, within which a movable shaft is movably mounted, with both ends of the movable shaft extending out of the motor housing. A first stator assembly and a second stator assembly are respectively housed within the motor housing. The first stator assembly mates with a first rotating shaft, and the second stator assembly mates with a second rotating shaft. The first and second rotating shafts are movably mounted on the movable shaft. A lead screw nut is located on the outer side of one end of the motor housing, and a spline nut is located on the outer side of the other end. The end of the first rotating shaft away from the second rotating shaft is connected to the lead screw nut, and the end of the second rotating shaft away from the first rotating shaft is connected to the spline nut. The advantages are: the first and second stator assemblies are housed within a single-piece motor housing, improving structural compactness, reducing space occupation, simplifying installation, and improving coaxiality.

This application relates to the field of air conditioner technology, disclosing a driving mechanism for an air conditioner's air guide plate and an air conditioner. The driving device for the air guide plate includes: a mechanism box, including a first cover and a second cover; a first connecting rod, which is drivenly connected to the air guide plate; wherein, one of the mechanism box and the first connecting rod is provided with a first positioning part, and the other of the mechanism box and the first connecting rod is provided with a first positioning mating part and a second positioning mating part, the first positioning mating part and the second positioning mating part being arranged sequentially along the direction from the first cover to the second cover, and the first positioning part being located between the first positioning mating part and the second positioning mating part to restrict the movement of the first connecting rod in the direction of the line connecting the first cover and the second cover. The limiting of the first connecting rod is not achieved by means of the second connecting rod, avoiding the interaction force between the first connecting rod and the second connecting rod as in related technologies, thereby ensuring the movement accuracy of the air guide plate.

The application discloses a self-cleaning turnover machine rotary frame guide rail seat, which comprises a supporting base, the upper surface of the supporting base is provided with a guide rail body, a sliding block is slidably connected to the guide rail body, a driving assembly is arranged on one side of the supporting base, and the driving assembly can drive the sliding block to reciprocate along the length direction of the guide rail body. In the utility model, the T-shaped sliding groove at the bottom of the sliding block cooperates with the T-shaped protrusion at the top of the guide rail body, a good guide structure is formed, deviation and shaking of the sliding block during movement are effectively prevented, the accuracy and stability of the movement of the sliding block are improved, and the movement precision of the rotary frame is ensured.

The invention discloses a piezoelectric inchworm driver based on a space orthogonal parallel bridge type mechanism, and relates to the technical field of precision driving and positioning, the piezoelectric inchworm driver comprises the space orthogonal parallel bridge type mechanism, the inner side of the space orthogonal parallel bridge type mechanism is provided with driving piezoelectric ceramics, and the outer side of the space orthogonal parallel bridge type mechanism is provided with a piezoelectric driving module; the space orthogonal parallel bridge type mechanism comprises a first bridge type mechanism and a second bridge type mechanism which are arranged in an orthogonal mode, and the output end of the first bridge type mechanism and the output end of the second bridge type mechanism are connected with the composite plate spring guide mechanism. The piezoelectric driving module comprises an X-direction clamping foot and a Y-direction clamping foot, bridge type amplification mechanisms are installed in the X-direction clamping foot and the Y-direction clamping foot, each bridge type amplification mechanism is provided with a downward output end, a clamping head is installed at the output end, and the clamping heads are used for making contact with the base during actuation. According to the invention, two same bridge type mechanisms are adopted to form a spatial orthogonal parallel bridge type mechanism, so that the consistency of motion performance can be ensured; and the bridge type mechanism is simpler in structure and convenient to machine.

The utility model discloses a slide box discharging device which comprises a support, a lifting mechanism and a glass pushing mechanism. The lifting mechanism comprises guide assemblies arranged on the inner sides of vertical plates on the two sides of the support. The bearing structure is in sliding connection with the guide assembly, and the bearing structure is provided with a horizontal bearing part which extends outwards to form a cantilever type supporting platform; the driving assembly is used for driving the bearing structure to lift; the glass pushing mechanism comprises a second linear sliding rail which is arranged on the upper end face of a top connecting plate of the support and extends in the glass pushing direction. The slide pushing part is connected to the second linear slide rail in a sliding manner; and the servo driving motor is used for driving the slide pushing part to move along the glass pushing direction. The lifting mechanism and the glass pushing mechanism are arranged between the two side vertical plates and on the upper end face of the top connecting plate in a layered mode in the vertical direction, the lifting stroke and the glass pushing stroke of the slide box are spatially orthogonal, and the overall space utilization rate is high. Meanwhile, under the cooperation of the detection system and the control system, stable and efficient automatic discharging of the slides is achieved.

The utility model relates to the technical field of miniature ultrasonic drivers, in particular to a miniature ultrasonic driver suitable for AR glasses, which comprises a shell, slideways are arranged at two ends of the shell, sliding blocks are arranged in the slideways, a sliding body is arranged between the two sliding blocks, a driving shaft is arranged in the middle of the sliding body, and the driving shaft is connected with the shell. The driving shaft comprises a left-handed rotation driving part and a right-handed rotation driving part, driving devices are arranged at the bottoms of the left-handed rotation driving part and the right-handed rotation driving part, inertial motion of the self-centering rotor and the driving shaft is reduced, excessive motion is reduced, and the motion precision of the driver is guaranteed.

This utility model discloses an air guide plate structure and an air conditioner using the same. The air guide plate structure includes a drive assembly, a transmission assembly, a support assembly, and an air guide assembly. The output end of the drive assembly is connected to the air guide assembly through the transmission assembly. The air guide assembly is located at the opening of the support assembly. The air guide assembly includes at least one air guide plate. One side of the air guide plate has a rotating connection part, and the other side of the air guide plate has a drive connection part integrally formed with the air guide plate. The air guide plate is positioned at the opening of the support assembly through the rotating connection part, and the transmission assembly is connected to the air guide plate through the drive connection part. In this utility model, the integral forming of the drive connection part and the air guide plate completely eliminates the assembly process of the traditional air guide plate and crank, solving the problem of low assembly efficiency. By eliminating the separate crank structure, the problem of overlap control is fundamentally avoided, and the risk of air guide plate deformation caused by interference fit is avoided.