166results about How to "Replaceable" patented technology

The invention belongs to the technical field of robots and particularly relates to an intelligent modular hollow joint. The intelligent modular hollow joint comprises a motor, a brake, an incremental encoder, a harmonic reducer, an absolute encoder, a torque sensor, a hollow wiring tube and a tail-end output shaft. The brake and the incremental encoder are arranged on a rear end cover of the motor and in transmission connection with the rear end of a motor output shaft through a transmission device, the front end of the motor output shaft is connected with the harmonic reducer which is connected with one end of the tail-end output shaft, the outer end of the tail-end output shaft is connected with the torque sensor, and the absolute encoder is mounted on the tail-end output shaft. The motor output shaft and the tail-end output shaft are both in hollow structures, the hollow wiring tube sequentially penetrates through the tail-end output shaft, the harmonic reducer and the motor output shaft, and one end of the hollow wiring tube is connected with the rear end cover of the motor while the other end of the hollow wiring tube is rotatably connected with the tail-end output shaft. The intelligent modular hollow joint in modular design is applicable to robot joints, and all parts of the intelligent modular hollow joint are replaceable to make it convenient for modification.

The invention discloses a tracking meal delivering robot which is a mechanical, electrical and hydraulic combinational integrated product. The tracking meal delivering robot is composed of a mechanical system, a hydraulic system and a control system; the mechanical system comprises a driving wheel, a direct-current walking motor, a step-by-step steering motor and a sensor; the robot achieves the functions such as walking and turning through the mechanical system; the hydraulic system comprises an oil tank, a gear pump, a direct-current motor, a vertical cylinder, a horizontal cylinder and a grabbing cylinder; the functions of looking for plates, grabbing the plates and sending the plates to a guest dinner table are achieved through the hydraulic system; the analysis and detection on the movement track in the robot walking process and positioning on the plates in the robot dish serving process are achieved through the control system, and the control system has the advantages that the feedback precision is high and the system operation is stable. The tracking meal delivering robot is simple in structure, steady in system operation and low in manufacturing cost, and capable of saving labor force for foodservice industry and solving the problem of human resource shortage.

The invention discloses an isothermal beta forging method for a TC17 titanium alloy blade, and the problem that the process requirement of existing TC17 blisk forging is high can be solved to a certain extent. The process requirement of TC17 blisk forging is high, and the machining requirement of forge pieces in the machining link is quite high. Machining errors in machining of the blade can cause scrapping of a whole blisk forge piece, time and labor are saved, and the economic cost is high. A wheel disc and the blade are forged separately, the identical isothermal beta forging method is adopted for the blade and a compressor blisk, and thus the forging forming difficulty is low, and subsequent machining is greatly facilitated.

The invention relates to a double-T-shaped framework elastic hinging flexible suspension direct driving radial steering frame, which comprises a steering frame framework, a shaft box device (4) and two permanent magnet direct driving motors (3), wherein the shaft box device (4) is used for positioning wheel pairs (5); the permanent magnet direct driving motor (3) is used for driving the wheel pairs (5); the steering frame framework is a double-T-shaped elastic hinging framework with the flexible function; each of the two permanent magnet direct driving motors (3) is arranged on a steering frame framework through a three-point type suspension mechanism, and respectively drives one wheel pair (5). Compared with the prior art, the double-T-shaped framework elastic hinging flexible suspension direct driving radial steering frame has the advantages that the flexible function of the steering frame is good; the adapting route twisting capability is high; the unsprung mass is light; the operation noise is low; the active radial function is realized, and the like.

The invention provides a RapidIO controller adopting a window mapping mechanism. The controller comprises a RapidIO IP Core, a parallel local bus interacting with an external processor, an address decoding module, an expansion configuration space, an initiator request packet generating module, an initiator response packet analyzing module and an initiation bus request recording module, wherein the address decoding module decodes read-write operation chip selection on the parallel local bus to later-level accessed resources according to chip selection information of address spaces provided by configured register blocks in the expansion configuration space, the initiator request packet generating module is responsible for constructing request packets when a RapidIO bus request needs to be initiated, the initiator response packet analyzing module analyses a response packet received after the controller initiates the RapidIO bus request, the initiation bus request recording module records the RapidIO bus request which is initiated by the controller and needs the response packet. The RapidIO controller adopting the window mapping mechanism and a control method of the RapidIO controller are good in compatibility and complete in function.

The invention discloses a marine medium speed diesel engine high pressure common rail system hardware-in-loop simulation test platform and a test method. The test platform comprises a common rail system auxiliary unit, a common rail execution mechanism, a virtual marine medium speed diesel engine, an electric control unit, a test platform monitoring system and a local control system. The complete high pressure common rail execution mechanism and the electric control unit are integrated; the virtual diesel engine is used for providing an actual working condition for the electric control unit and the local control system, and the test platform is highly integrated and comprehensive, and research and test on features of the high pressure common rail system, control strategies and performance of the execution mechanism can be carried out. The complete common rail system is kept, fuel pump operation, fuel injection and diesel engine operation state parameters which are the same as those of a real diesel engine can be realized in a lab, working condition changes of the virtual diesel engine can be realized through steering a telegraph lever, and the test platform of the invention can serve as research and teaching equipment for the marine diesel engine high pressure common rail system and has promotion and use values.

The invention relates to a reliable method for verifying fragmentation distribution of blasting lumps. Under the conditions of ensuring that a picture has a sufficient resolution to display a millimeter scale, a plurality of software picture processing functions are used to mutually connect the advantages of respective software, and the software processing accuracy and error limits are considered.The advantages of manual identification are fully applied to area superposition, rock joints, light and dark ridges, and occlusion interruptions that cannot be accurately identified by the software in the picture. By combination with different stages to select appropriate recognition and processing methods, finally high-precision picture data distribution is obtained. Finally the fragment distribution represented by the picture is verified by five newly-proposed statistical calculation formulas to obtain more a reliable state of fragmentation distribution of the blasting lumps.

The invention relates to a testing device for hovering characteristics of a pendulum type rotor system of a Mars unmanned aerial vehicle, and relates to the hovering characteristics testing field of the rotor system of the unmanned aerial vehicle. The device solves the problem that it is difficult to simulate accurate tests of rotor performance in the Martian environment through rotor hovering test devices on the ground. The device includes a Martian atmospheric environment simulator, a support frame, a rotor system and a pendulum angle detection device; the support frame is placed in the Martian atmospheric environment simulator, and the rotor system and the pendulum angle detection device are fixed on the support frame; the rotor system is used for generating rotor lift in the horizontaldirection; the pendulum angle detection device is used for detecting the pendulum angle value of a rotor connecting rod under different rotor lift in a rotor system. The device is mainly used for testing the rotor system of the unmanned aerial vehicle in the Martian environment.

The invention discloses a compound type pneumatic non-contact gas claw which comprises a gas claw casing and a shunting ring, wherein the gas claw casing is provided with a downwardly opening cylinder cavity; a workpiece grabbing through hole is formed at the center of the shunting ring; the gas claw casing includes a gas claw top cover, a gas claw middle part and a bottom sucking disc, which are detachably and hermetically connected; the gas claw top cover is provided with a gas inlet communicated with the cylinder cavity; the gas claw middle part is provided with a rotary reflux cavity forming the main body section of the cylinder cavity; the bottom sucking disc is provided with a circular sucking disc concave cavity communicated with the cylinder cavity; the shunting ring is in clearance sleeve in the circular sucking disc concave cavity; an annular clearance gas injection channel is defined by the back side of the shunting ring and the cambered curve of the bottom wall of the circular sucking disc concave cavity; three groups of small pressurizing holes surrounding the grabbing through hole are uniformly distributed on the shunting ring in an equal-radian manner; a workpiece to be grabbed is suspended in front of the grabbing through hole to achieve the dynamic balance and the non-contact grabbing and handing functions under the combined action of negative pressure generated at the high pressure gas rotary reflux center, positive pressure generated in high pressure gas overflowing out of the annular clearance gas injection channel and the self-weight of the workpiece.

The invention discloses a modularization miniature weight-losing capsule robot based on wireless power supply and communication and provides novel weight-losing treatment equipment which conducts wireless type energy supply by using a resonance principle and removes power source equipment to reduce the size of capsules, conducts expansion and shrinkage by wireless communication control equipment, and has modularization design. The modularization miniature weight-losing capsule robot solves the problems that the guiding process and the aerating process of traditional stomach inside balloon weight-losing equipment greatly damage a patient, the size of existing ingested treatment equipment without auxiliary guiding is difficult to reduce due to power supply demands of a power source, and repeated use of a whole machine is low. Compared with a similar product, the modularization miniature weight-losing capsule robot is small in size, can be normally taken or drained, is low in patient damage and pain, has treatment effectiveness and economy, and is outstanding in feature. The modularization miniature weight-losing capsule robot provides a novel scheme for non-invasive obesity treatment, provides a solution for sufficient energy supply of miniature internal medical equipment and small size contradictory, and simultaneously modularization design saves treatment cost and creates conditions for product commercialization.

The invention discloses a series type modular pipeline crawling soft robot. The series type modular pipeline crawling soft robot comprises a pneumatic stretchable unit and pneumatic expansion units, wherein the pneumatic stretchable unit is arranged to only extend in the axial direction when being inflated, the pneumatic expansion units are connected with the two ends of the pneumatic stretchableunit through connecting portions, and the pneumatic expansion units are arranged to only expand in the radical direction when being inflated. The robot is mainly applied to the occasion of pipeline crawling, is mainly characterized in being modular, and has the advantages of being convenient to replace, flexible to assemble, powerful in function, simple in structure, easy to operate and the like,a wide variety of robot configurations can be combined through simple selection and series assembly of modular assemblies, and therefore, the robot has different functions and can better adapt to a wide variety of working environments and tasks.

The invention discloses a replaceable modular LED streetlamp, which is characterized by comprises a lamp holder and a plurality of independently detachable LED light source modules, wherein each LED light source module is independently provided with a waterproof structure, an LED chip array, an optical part, a radiating structure and an electric part inside. The LED streetlamp has high adaptability, is suitable for standardized design and production, and also has the advantages of simple structure, good radiating effect and great promotion value.

The invention discloses a detachable hydraulic cylinder with a carbon fiber composite for connection and load bearing. The detachable hydraulic cylinder comprises an end cap, a cylinder head, a cylinder barrel outer layer, a cylinder barrel lining, a cylinder bottom, a piston rod and a piston. The cylinder barrel outer layer is formed by adopting high-strength carbon fibers as reinforcing material and epoxy resin as a substrate, and winding the carbon fibers on a cylinder barrel assembly metal part by adoption of a contact molding method. Compared with a metal hydraulic cylinder, the detachable hydraulic cylinder has the advantage of being remarkably low in weight; compared with an existing composite hydraulic cylinder, by adopting a composite body as the connection structure, the reliability is higher than that of adhesive connection; due to the fact that threads, bolts and pins are not adopted for connection between the composite and metal parts, the composite structure is not locally damaged by machining, the continuity and integrity of the carbon fibers are guaranteed, and the advantage of high strength of the carbon fibers is given full play to the greatest extent; and a cylinder barrel assembly can be separated from other assemblies, so that the maintenance cost and difficulty of the detachable hydraulic cylinder are lower than those of an integral composite hydraulic cylinder.

The invention discloses a circulating water internal cold friction drum for a brake device, which is suitable for internal expansion and external bundling brake devices and can be used for braking a vehicle retarder, a brake, hoisting equipment and transporting equipment. The circulating water internal cold friction drum comprises an external hub 1, an internal hub 2, a cover plate 3, a guide plate 4, a spoke 5, connecting keys 7, a water inlet 8, a water outlet 9 and the like. The internal hub and the external hub are connected together by using a plurality of keys 7 and a fastening member to form an integral friction drum. The hubs are arranged on a rotating shaft through the spoke and rotate with the rotating shaft. Cooling water enters a friction drum water channel from the water inlet 8 under a certain pressure, flows in the hubs under the guidance of the guide plate 4, and finally enters a heat radiator from the water outlet 9, and the cooling water enters the next cooling circulating process after being cooled by the heat radiator. During the brake, friction heat generated by the hubs and an external bundling brake sheet or / and an internal expansion brake sheet is carried away by the cooling water, thus the temperature of the working surface of the friction drum is lowered.

The invention relates to a power generation device for a revolving body underwater vehicle. Four power generators are fixedly arranged on a cross-shaped support frame; a pendulum hammer is positioned below the center of the cross-shaped support frame; and the pendulum motion of the pendulum hammer is converted into rectilinear motion of each threaded sleeve through four sets of spatial crank slider mechanisms composed of a top rod, a connecting rod and a threaded sleeve respectively. When each threaded sleeve rectilinearly moves, rotor shafts of the power generators are driven to rotate under the constraint of a guide rod and through the transmission of a reverse ball screw so as to realize the purpose of converting collected mechanical energy into electric energy for the use of the revolving body underwater vehicle. The power generation device has the beneficial effects that the shaking kinetic energy of the pendulum hammer in a space in different directions is converted into the electric energy, so that the problem of energy supply of the revolving body underwater vehicle is basically solved; the power generation device has the advantages of simple structure, easiness in processing and high efficiency; and the whole power generation device is cylindrical in appearance, is compact in structure, is installed in the revolving body underwater vehicle as an independent module, has the replaceability, is not affected by the marine bad environment and is not limited by power generation time.

The invention discloses a basin-type support replacement construction method for reserving all anchor bolts. The method comprises the steps that an old basin-type support is processed; a beam body adopts a synchronous jacking-up system, and the jacking-up height is larger than the thickness of a lower steel plate; the old basin-type support is taken out; the anchor bolts are processed; a novel basin-type support is processed, the structure of the novel basin-type support is the same as that of the old basin-type support obtained before processing, and the novel basin-type support is processedbefore installation; the novel basin-type support is installed; a jack is jacked up synchronously for oil return pressure relief, and replacement of the basin-type support is completed. By means of the construction method, all the anchor bolts of the original basin-type support are reserved, and it is guaranteed that connection of the novel basin-type support and the beam body and padstone is reliable.

The invention discloses an economical and practical embedded freezing and cold storage fresh-keeping and preservation low-intensity magnetic field modularization device which can be applied to refrigerators, intelligent cabinets, wine cabinets, warehouse logistics equipment and the like. The device comprises a coil frame, a magnet exciting coil and a control circuit, the magnet exciting coil is arranged in the coil frame so as to generate a steady low-intensity magnetic field or a pulse steady low-intensity magnetic field; and the control circuit is connected with the magnet exciting coil and used for adjusting the magnetic field intensity of the steady low-intensity magnetic field or the pulse steady low-intensity magnetic field and the magnetic field frequency and the duty ratio of the pulse steady low-intensity magnetic field. According to the device, a small-size coil frame and a small-size wire diameter are adopted, so that the ratio range of the weight of the device to the effective storage volume of embedded equipment is 0.05-0.5 kg / L, the unit volume energy consumption of the embedded equipment is 0.03-5.0 W / L, important factors such as weight, magnetic field intensity and frequency, coil heat dissipation, magnetic field duty ratio and the like are balanced, high-quality and low-energy-consumption freezing and refrigeration of food, medical supplies, agricultural product raw materials, fresh flowers, plant seeds and the like by the magnetic field are kept to the maximum extent.

The invention provides a spiral groove machining device for an automobile sleeve. The spiral groove machining device comprises a machine base; the machine base includes a bottom plate, a first supporting plate and a second supporting plate, wherein the first supporting plate and the second supporting plate are fixedly connected on the bottom plate at intervals, the first supporting plate is provided with a positioning shaft in a rotating mode, the second supporting plate is provided with a pressing shaft concentric with the positioning shaft in a sliding mode, and a hydraulic driving device isconnected with the portion, extending out the second supporting plate, of the pressing shaft; the bottom plate between the first supporting plate and the second supporting plate is fixedly connectedwith a sliding seat, and a tool holder assembly is arranged on the sliding seat in a sliding mode; two parallel screw rods are arranged between the first supporting plate and the second supporting plate, and the screw rods are connected with the tool holder assembly in a spiral motion mode; and a driving mechanism for driving the positioning shaft and the screw rods to rotate synchronously is disposed at the outside of the first supporting plate. According to the spiral groove machining device for the automobile sleeve, a spiral groove in a sleeve blank is machined by the special machining device to avoid occupying the normal use of a standard machine tool, the machining efficiency is improved, procedures in the machining process are reduced, the size is consistent during each time of machining, and the replaceability is achieved.

The invention discloses a single-cylinder electronic fuel injector test platform for ship low-speed machines. The single-cylinder electronic fuel injector test platform comprises an electronic fuel injection module communicating with an ECU, a cooling system connected with the electronic fuel injection module, an oil quantity measuring mechanism connected with the cooling system, a PLC communicating with the oil quantity measuring mechanism, a weighing module connected with the oil quantity measuring mechanism, a servo motor communicating with the PLC, and a test platform measuring and controlling module. The electronic fuel injection module, the PLC, the weighing module, and the servo motor communicate with the test platform monitoring and control module. The single-cylinder electronic fuel injector test platform has an advantage that the speed simulation of the servo motor fully satisfies a speed demand of the ship low-speed machine, can measure the fuel injection quantity of a third-party fuel injector in every cycle, can measure respective performance parameters of the fuel injector, and provides direction for the control strategy and optimization coordination of the low-speed machine.

The invention belongs to the field of spaceflight lens clamping ring loading and unloading, and particularly relates to a fastening and disassembling device for a lens clamping ring. The problems that an ordinary wrench cannot meet the size requirement of the fastening and disassembling of the clamping ring; the work effect is not stable enough; and the lens surface is easily scratched in the prior art are solved. The device comprises a rotary handle, a torsion bar, a clamping ring chuck, a positioning sleeve and cards. The rotary handle is fixedly connected with the middle part of the clamping ring chuck through the torsion bar. The positioning sleeve sleeves the torsion bar and is located between the rotary handle and the clamping ring chuck. The inner wall of the positioning sleeve matches the outer wall of a frame. At least two card slots are arranged in the outer periphery of the clamping ring chuck, and the cards are arranged in the card slots.

The invention relates to a palate mouth cavity model simulation method and palate mouth cavity models for teaching. A palate skeleton and a plurality of mucous layers are adopted, wherein the palate skeleton is provided with an upper dentition and corresponding gingivae. Each mucous layer is matched with the palate skeleton in shape and provided with tooth holes corresponding to the dentition, and a symptom structure corresponding to one of palate symptoms. The mucous layers provided with the different palate symptoms are respectively connected with the dentition on the palate skeleton in a penetrating mode through the tooth holes to be in adsorbed connection to the palate skeleton, and the various corresponding palate mouth cavity models are formed. The relative soft and elastic mucous layers are arranged on the palate skeleton made of hard materials, the characteristic that the palate symptoms are mainly centralized on mucous membranes is utilized, the mucous layers and the palate skeleton are made into a separable mode, the various symptoms of the mucous membranes are arranged on the corresponding mucous layers respectively, the palate skeleton is matched with the mucous layers in a one-to-one mode, the mouth cavity models are formed, the cost of the teaching aids is greatly reduced, and meanwhile the models are quite vivid.

The present invention relates to a piezoelectric stick-slip micro nano angular displacement platform and a driving method thereof, and the problems that an existing angular displacement positioning platform is low in positioning precision, large in structure size and high in cost are solved. The angular displacement platform is composed of a sliding stand, a lateral driving device, baffle plates and a pedestal. Due to lever equivalent rotation of a lever amplification mechanism, a driving foot is urged to generate a lateral displacement greater than an original deformation of a piezoelectric ceramics stack; motion conversion is achieved by using an arc-shaped dovetail groove, so that rectilinear motion output by the lateral driving device is converted to required curvilinear motion; and the designed lever amplification mechanism is simple to assemble and easy to adjust, and is replaceable. Compared with the prior art, the piezoelectric stick-slip micro nano angular displacement platform has the characteristics of high positioning precision, simple structure, miniaturization, lightweight and low cost, and has good application prospects in the technical field of precision processingand positioning such as optical precise instrument and semiconductor processing.

The invention discloses a modular ground crawling software robot. The modular ground crawling software robot comprises a second pneumatic telescopic unit and first pneumatic telescopic units, whereinthe second pneumatic telescopic unit is configured to bend or extend in the self axial direction when being inflated; the first pneumatic telescopic units are respectively and symmetrically arranged at the two ends of the second pneumatic telescopic unit in a connecting manner and are configured to only extend unidirectionally in the self axial direction when being inflated; the extension directions of the first pneumatic telescopic units are identical; and the first pneumatic telescopic units are simultaneously orthogonal to the axial direction of the second pneumatic telescoping unit. The modular ground crawling software robot has the advantages of convenient replacement, flexible assembly, powerful functions, simple structure, easy operation and the like. A variety of robot configurations can be formed by combination through the relatively simple selection and series-parallel connection assembly of modular components; and the robot can perform linear and curvilinear motions, so thatthe robot can better adapt to a variety of work environments and tasks.

The invention discloses a film forming device with a detachable gas inlet and outlet structure. The detachable gas inlet and outlet structure mainly comprises a plate body, a venting unit and a film forming raw material supplying unit, wherein the venting unit is arranged on one end of the plate body, and the film forming raw material supplying unit is arranged on the other end of the plate body. Through combining with a created transmission device, the film-forming device disclosed by the invention can be used for manufacturing a continuous and uniform large-area film.

The invention discloses an ultra small-sized bicycle with special stepless speed regulation structure, which is characterized in that essential differences occur between the traditional technical structure and the modern technical structure as well as the traditional drive mode assembly and the modern drive mode assembly. By adopting a concept on innovation, a third-grade extension tube star-type big chainwheel is superposed with a 60-degree angle of the extension semidiameters of rear bicycle wheels. Toothed chains are driven in a stepless amplitude and speed change manner and the bicycle wheels realizes the stepless speed regulation in a drive manner, which is applicable to various walking machineries, in particular to the ultra small-size bicycle, thereby solving the problem of a core transmission assembly, greatly improving the off-road performance and reducing the total weight and volume of the bicycle. Therefore, a comparatively ideal and perfect modern vehicle is provided and can be a beautiful scene.

The invention relates to a maintainable tunnel lining water pressure and displacement monitoring system. With the system, a maintenance problem of the monitoring system is solved effectively; and a water pressure value at the back of tunnel lining and an absolute displacement value of an inverted arch filling surface in a tunnel can be provided in real time, so that the safe training driving can be guaranteed. Monitoring sections are arranged at intervals along a tunnel extending direction; water pressure monitoring devices, displacement monitoring devices, wireless data employing instruments, and repeaters are arranged on all monitoring sections; the water pressure monitoring devices are arranged above drainage blind ditches at the two sides beyond tunnel lining; and the displacement monitoring devices are arranged at an inverted arch layer and a central ditch part above the inverted arch segment of tunnel lining. The water pressure values, detected by the water pressure monitoring devices, at the back of tunnel lining and lifting displacement values, detected by the displacement monitoring devices, of the inverted arch segment of tunnel lining are transmitted to the corresponding wireless data employing instruments; and then the data are transmitted to a monitoring center by the repeaters.

The invention relates to a micro-displacement output platform with a two-stage amplifying mechanism. The platform is mainly composed of a driving part, an amplifying part, a motion executing part anda measuring part. The driving part mainly realizes the function by piezoelectric ceramics, and pretightening of the piezoelectric ceramics is realized by disc springs; the amplifying part is formed bycombining a traditional hinge and a flexible hinge; and the measuring part consists of an ultrasonic-based measuring device. According to the micro-displacement mechanism, the output displacement precision is high, the dynamic response is fast, the characteristic of the disc spring enables the pretightening force to be kept constant in the piezoelectric ceramic output displacement process, and the symmetrical distribution of the hinges can effectively eliminate parasitic displacement. The micro-displacement mechanism overcomes the defect that small-displacement output can be realized only byusing piezoelectric ceramics, stepless amplification of the output displacement of the piezoelectric ceramics can be realized by adjusting the mechanism according to actual requirements, and multi-scale output precision from nanometer level to millimeter level is realized. The micro-displacement output platform can be applied to correcting the precision of measuring of the fixed film thickness byan ultrasonic probe.

The invention discloses a capping head of a high-speed moving cover. The capping head is provided with an outer magnetic ring carrier and an outer magnetic ring thereof as well as an inner magnetic ring carrier and an inner magnetic ring thereof, wherein the outer magnetic ring carrier and the outer magnetic ring thereof are fixed on a fixed shaft through threads and outer magnetic ring fixing nuts; the inner magnetic ring carrier and the inner magnetic ring are mounted at the outer side of a rotating shaft through bonds; a magnetic attraction between the inner magnetic ring and the outer magnetic ring is matched with the maximum design torque of the moving cover; meanwhile, a top cover ring is pressed into a capping die, and the capping die is provided with a tooth socket for meshing with the moving cover relative to the inner wall at the lower side of the top cover ring, and the top cover ring and a mandril bushing form a cover withdrawing mechanism of the capping head. The novel capping head disclosed by the invention has the beneficial effects that: on the one hand, through a unique axial installation and attraction way of the inner magnetic ring and the outer magnetic ring, protection role in the moving cover in the mounting process of a bottle cap is increased, and assembly speed and yield rate of the moving cover are increased; on the other hand, the capping die has the advantages of replaceability, convenience for replacement, high center positioning precision, stability in catching the cap and further increased universality of the capping head and is more suitable for mounting of bottle caps in a high-speed line.