91 results about "Screw system" patented technology

The invention belongs to the technical field of humanoid robot valve control, and particularly relates to a humanoid robot global automatic valve screwing system and a control method.The humanoid robot global automatic valve screwing system comprises a movable chassis, a lifting module, a waist pitching module, a robot body, a tail end tool, a sensor assembly and a control system; the tail end tools are arranged at the tail ends of the two arms of the human shape. The sensor assembly is used for environment sensing, collection of valve height and posture information and collection of operation torque information. The control system is used for roughly positioning a target valve, automatically planning and controlling the moving chassis to approach the valve according to a rough positioning result, and adjusting the height based on the collected height information of the valve; and on the basis of the recognized valve posture, the two human-shaped arms and the tail end tool are controlled to complete screwing operation. Different types of valves can be automatically recognized and operated through the intelligent control system, and the time and cost of manual operation are reduced.

The invention relates to turning and grinding composite equipment for machining an outer circle and an annular groove of a steel piston and a using method of the turning and grinding composite equipment, and belongs to the technical field of piston machining equipment. The equipment comprises a base, a stand column, a left planker, a right planker, a left workbench, a right workbench, a tool turret, a static pressure electric spindle and a rotating spindle, the stand column is arranged on one side of the base, and the left planker and the right planker are horizontally arranged on the two sides of the stand column respectively through servo lead screw systems; the left carriage and the right carriage are vertically provided with a left workbench and a right workbench through servo lead screw systems respectively, the left workbench is provided with a tool turret, the tool turret is provided with a machining tool, the right workbench is provided with a static pressure electric spindle, the lower end of the static pressure electric spindle is provided with a grinding wheel, and the other side of the base is provided with a rotating spindle. The outer circle of the piston is machined through turning, turning is replaced by grinding when the piston ring groove is machined, the machining precision of the piston ring groove is improved, the service life of the piston ring groove is prolonged, the structure is compact, operation is convenient, and the machining efficiency is high.

A screwing device for applying and / or transmitting a torque to a screw partner and for interacting with a drive torque generating means, including flat output means (6) which have an output that, can be detachably connected to the screw partner and a drive, to which a drive torque can be manually or mechanically applied, an output gearwheel (8) that can be driven by the fiat output means (6), a mechanical interface (46) for selective direct or indirect connection to the drive torque generating means for initiating the torque, a compensation unit (30) which is designed to store and process compensation data and which comprises an output gearwheel-specific torque curve and / or an output gearwheel-specific efficiency curve for calculating it with a value of an actual output torque in order to generate a value of a compensated output torque, and a data interface (36) which is designed to transmit compensation data to a drive torque generating means.

A length adjustable modular screw includes a neck assembly and a shank. The neck assembly has proximal and distal ends and includes an expander component and a collet component that are slidably engagable by insertion of the expander component in a through channel of the collet component along a common axis. The length adjustable modular screw also includes a shank suitable for insertion and retention within a bone, the shank including a threaded portion between proximal and distal ends and a socket adapted to coaxially receive at least a portion of the distal end of the neck assembly. The length adjustable modular screw has a length that is selected by splaying at least a portion of the distal end of the engaged expander and collet components of the neck assembly within the socket of the shank.

The invention discloses a titanium-magnesium hollow screw system capable of promoting fracture healing and a manufacturing method. The titanium-magnesium hollow screw system comprises a titanium-based supporting structure and a magnesium filling layer. The titanium-based supporting structure comprises a main body part, the surface of the main body part is provided with an imitated bone trabecula part, and a plurality of bone gaps are formed in the imitated bone trabecula part; wherein bone gaps are filled with the magnesium filling layer, and the magnesium filling layer is combined with the titanium-based supporting structure in a physical embedding mode; the titanium-based supporting structure bears and maintains initial fixation and long-term bearing, so that the strength and the stability of the screw are ensured; the surface imitated bone trabecula and the communicated bone gaps increase the surface area and provide a physical channel for vascularization and bone tissue ingrowth, so that synostosis is promoted; the magnesium filling layer releases magnesium ions after being locally controllably degraded, so that osteogenesis and angiogenesis are favorably stimulated, the local biological environment is improved, instant mechanical support after an operation is ensured, bone healing is promoted through local biological activity release and structural orientation, the healing time is favorably shortened, and the healing quality is favorably improved.

The invention relates to a large-capacity semi-dull nylon 66 resin continuous polymerization device for civil filaments and a production process, and through a whole-process continuous design (salification-concentration-polymerization-pelletizing) and an intelligent regulation and control system, the production efficiency and the product consistency are remarkably improved. According to the process, high-efficiency production is realized, and meanwhile, the product quality and the functional applicability are greatly improved through innovative structural design; the dispersity of TiO2 master batches in resin is effectively improved through high-shear mixing of a screw system, so that the spinnability is further improved; the continuous process supports the flexible adaptation of the antioxidant and the extinction master batch, reduces the waste of raw materials, lowers the comprehensive production cost, and obviously enhances the market competitiveness.

The invention discloses copper pipe diameter reducing machining equipment, relates to the field of copper pipe machining, aims to solve the problem that non-machining sections with different lengths cannot be machined on the same copper pipe conveniently in the prior art, and adopts the technical scheme that the copper pipe diameter reducing machining equipment comprises a diameter reducing die composed of a plurality of composition units, and opening and closing mechanisms with power sources are connected to the composition units; and the drawing mechanism is driven by the lead screw system. Opening and closing of the reducing die can be controlled through the power source, the reducing die is closed for machining in the machining section, the reducing die is opened in the non-machining section to enable the non-machining section to pass through, the drawing mechanism can accurately control the position and length of each non-machining section through control of the lead screw system, and therefore the machining precision of the pipe is guaranteed. According to the device, non-machining sections with different lengths can be arranged on the same pipe, operation is convenient and fast, and the machining precision is high.

In some examples, a method for optimizing a medical treatment plan may comprise: receiving preoperative information for an instant patient or intraoperative information for the instant patient; determining, based on the received preoperative information or intraoperative information, an initial medical treatment plan for the instant patient; receiving postoperative kinematics data of the instant patient from a first implant; determining, based on the received postoperative kinematics data and stored information, an updated medical treatment plan for the instant patient; and displaying the updated medical treatment plan on an electronic display. The kinematics data may include: (i) movement information, (ii) position information, and / or (iii) acceleration information; and the stored information may include: (i) the preoperative information for the instant patient, and (ii) preoperative information, intraoperative information, and / or postoperative information from a plurality of previous patients having at least one characteristic in common with the instant patient.

A system for mechanical separation, comprising a platform comprising screws 20 to provide a sieving surface. The screws have parallel and neighbouring axis 4 and undergo rotational movement. At least

The invention relates to a system for moving a hydrofoil for a hydrofoil provided with a hull in translation and rotation, between a first position remote from the hull and a second position close to the hull, said system comprising a housing with a longitudinal axis (Z), comprising a lower base (24) and an upper base, extending from the lower base (24) to the upper base, a worm screw system activated by drive means, a carriage (20) cooperating with the worm screw system and cooperating with the guide rails (18) which comprises at least one circular propeller portion (18.3) with a longitudinal axis (Z), said carriage (20) being fixed to a mast (9) carrying the hydrofoil (8) and the lower base (24) comprising a through passage for said mast (9), so that in the second position the mast (9) is at least partly received in said housing. [Fig. 5B]

Provided are bone plates and systems including such plates. The present plates may be used for example, to accommodate spinolaminar junction or as a plate locking screw system for posterior spinal fixation in the cervical, thoracic, lumbar and sacral spine, extremities, pelvis and long bone fixation. The present devices and systems may include modular plates, rods and rails. Devices and systems herein relate to both open methods and minimally invasive surgery applications. Also provided are locking plates and systems relating to tethering applications. Further provided are kits including any of the present kits or devices, and methods including insertion of any of the present plates or systems into a patient.

The invention provides a pellet preparation method and a tool for pellet preparation. The preparation method comprises the following steps: mixing a powder raw material and a binder, and carrying out internal mixing and granulation to obtain a feed for powder extrusion printing; a screw system of the powder extrusion printing equipment extrudes the feed in the charging barrel into long filaments through heating and rotating, and blanks are printed on a printing panel layer by layer according to a preset printing path; the side faces of the two to-be-connected green bodies are heated, the two green bodies are in butt joint after the binders on the outer surfaces of the heating faces are melted and have cohesiveness, the two green bodies are connected together in the cooling process, and the connected green bodies are obtained; degreasing the connected green body to obtain a brown blank; and carrying out densification sintering on the brown blank to obtain the pellet. According to the method, the two to-be-connected green bodies prepared through the powder extrusion printing technology are heated and in butt joint, so that the technical problem that a long pellet is difficult to prepare through a traditional preparation method is solved.

The utility model provides a carton printing and bonding device, including a frame, a pressing plate that slides up and down is provided in the frame, a sliding and unfolding telescopic tooth plate is provided at the end of the pressing plate, sliding side baffles are provided on both sides of the telescopic tooth plate, the ends of the side baffles slide against a placement platform in the frame, and a rotating bidirectional screw is provided between the side baffles on both sides, and the bidirectional screw is used to drive the side baffles on both sides to move relative to each other. Through the design of the telescopic tooth plate, the sliding side baffle, and the adjustable bidirectional screw, the device can quickly and accurately adapt to cardboards of different sizes, improve the versatility and production efficiency of the equipment, and reduce the changeover time. The motor-driven bidirectional screw system, in conjunction with the threaded connection between the thread sleeve and the side baffle, makes the relative movement of the side baffle and the expansion and contraction of the telescopic tooth plate extremely convenient and precisely controllable, simplifies the operation process, and improves the positioning accuracy.

To provide a nozzle system for a textile machine, which can be quickly, easily and surely fixed.SOLUTION: A nozzle system (100) comprises at least one nozzle element (1), and a connecting element (2) for connecting the nozzle element (1) to a textile machine. The connection element (2) comprises at least one quick fixing system (3). The quick fixing system (3) comprises a first position and a second position. In the first position, the quick fixing system (3) is connected to the connecting element (2) in such a manner that the nozzle element (1) can be fixed to the quick fixing system (3) such that the nozzle element (1) can be removed without assistance. The quick fixing system (3) is designed to be fixed to the connecting element (2) in such a manner that the nozzle element (1) is installed in the second position.SELECTED DRAWING: Figure 1

The invention relates to a method for determining a value of hydraulic pressure to be supplied in a braking device (6) of a motor vehicle, comprising the following steps, during a tightening: - determination of a value of total target tightening force to be exerted on the piston, - determination of a value of principal force that the screw / nut system is capable of exerting alone on the piston - determination of a value of missing force to be exerted on the piston in addition to the principal force - determination of a value of future loss of tightening force corresponding to the force exerted less by the screw / nut system as soon as, after the hydraulic system (8) has exerted an additional tightening force on the piston, this hydraulic system (8) no longer exerts this additional tightening force on the piston;- from the missing force value, the future clamping force loss value and a piston dimension, determination of a target hydraulic pressure value to be supplied by the hydraulic system Figure for the abbreviation: figure 1;

The invention discloses a speed reducer shaft sealing structure and an installation method, and belongs to the technical field of speed reducer shaft sealing. The structure comprises a replaceable shaft sleeve arranged outside a rotating shaft in a sleeving mode, an annular groove is formed in the inner wall of the shaft sleeve and provided with an O-shaped sealing ring to form a static sealing interface, and the surface of the outer circle of the shaft sleeve is subjected to hardening treatment and is in dynamic sealing fit with a framework oil seal lip. The fastening assembly reliably fixes the shaft sleeve to the shaft body through a jackscrew system with an anti-loosening structure. The replaceable wear-resistant shaft sleeve is arranged as a sacrifice part, an easily-worn sealing interface is transferred to the low-cost shaft sleeve from a high-value shaft body, a dual-sealing system and an anti-loosening fastening structure are combined, the sealing reliability is guaranteed, meanwhile, rapid maintenance and replacement during sealing failure are achieved, the downtime of equipment is greatly shortened, and the service life of the equipment is prolonged. The maintenance cost is obviously reduced, and the service life of the sealing system under severe working conditions such as heavy load and vibration is effectively prolonged.

The application discloses a variable sweep in-out telescopic wing aircraft variable structure, which comprises an outer wing, a fuselage, a screw system, a push rod, an inner wing, a push rod connecting piece, a graphite copper sleeve and upper and lower guide rails; wing storage grooves are formed on the two sides of the fuselage respectively and used for accommodating the outer wing and the inner wing; the inner wing is located inside the outer wing and connected with the outer wing through a rotating pair to realize rotating movement; the inner and outer wings are designed with special trajectory sliding grooves, one end of the push rod is connected with the sliding grooves, the other end is fixed with a sliding table of a ball screw through a connecting piece, a motor drives the screw to rotate, realizes the symmetrical movement of the push rod, controls the movement of the inner and outer wings and realizes the deformation of the wings. Through the design of the sliding grooves of the inner and outer wings, the push rod is connected with the inner and outer wings through the sliding grooves and plays a certain supporting role; the length of the sliding grooves is increased, the change range of the sweep angle is increased, the uniform movement of the screw is realized through the movement of the push rod along the sliding grooves, the outer wing is uniformly extended and the inner wing is uniformly rotated, the overall structure is simple and ingenious and is flexible and convenient to use.

The utility model belongs to the technical field of double-screw extruders, and particularly relates to a double-screw extruder for preparing thermoplastic vulcanized rubber, the double-screw extruder comprises a machine barrel and a double-screw system arranged in the machine barrel, the double-screw system comprises two screws, and the double-screw system at least comprises a first section, a second section and a third section in the axial direction of the screws, the thread pitches of the screws in the first section, the second section and the third section are a1, a2 and a3 in sequence; in the first section, the second section and the third section, the minimum distance between the screw and the inner wall of the machine barrel is d1, d2 and d3 in sequence, a1 > a2 > a3, and d1 > d3 > d2. According to the preparation method, the process linkage of melting plasticizing, shearing dispersion and dynamic vulcanization and the process link collaboration in the TPV manufacturing process can be realized, so that the mechanical property stability of the TPV product can be optimized, and the problem of performance fluctuation of TPV prepared by a traditional double-screw extruder can be solved.

The present invention discloses a steel hanging wheel system, including a pulley block and a screw system, wherein the pulley block includes a pulley seat, a side guide column and a bearing pulley, and the screw system is arranged in the pulley block, including a screw wheel seat, a screw, a nut, a needle bearing, a safety clip, a steel wire rope and a limit head. The present invention provides users with a steel hanging wheel system with a compact structure, high overall strength, convenient and quick adjustment and smooth sliding, through the diameter of the side guide column being larger than the inner length and inner width of the side sliding concave hole, the outer height of the side guide column being smaller than the inner height of the side sliding concave hole, the outer diameter of the safety clip being larger than the inner diameter of the limit steel wire rope hole and the inner diameter of the wheel seat through hole, and the outer diameter of the nut being larger than the inner diameter of the screw sliding hole and the outer diameter of the top end of the screw wheel seat.

The utility model discloses a tracking type torsion cap screwing system which comprises a rack, a bottom mounting plate arranged in the middle of the rack and a movable fixed mounting vertical plate fixedly connected with the bottom mounting plate. The lifting guide column base is fixed to the bottom of the middle of the rack, the lifting guide column body is arranged on the lifting guide column base, the module installation fixing plate is installed at the top end of the lifting guide column body, the wiring base is fixed to the side edge of the rack, a sliding rail is arranged in the middle of the rack, and a lifting shaft connecting bottom plate is assembled at the bottom of the rack. According to the utility model, a group of two bottle molds are respectively arranged on the side conveying belt and the middle conveying belt, so that the distance between the two bottle molds can be controlled by controlling the speed difference between the side conveying belt and the middle conveying belt, and therefore, the device is suitable for different bottles, and the applicability of the device is improved; and the height of the module mounting fixing plate can be controlled through the arranged lifting guide column main body, so that the cap screwing height of the cap screwing claw head is changed, and the applicability of the device is further improved.

The application relates to a screw system. The screw system comprises a screw unit with a housing, a tool holder for receiving a screw tool, a rotary drive to rotate the tool holder, and a linear drive to feed the tool holder. The screw system also includes a separate compensating module. The compensating module has a first element for mechanical coupling to the housing of the screw unit and a second element for mechanical coupling to an articulated robot arm, so that the screw unit can be attached to the articulated robot arm via the compensating module. The compensating module has at least one bearing.The first and second elements are movable relative to each other via at least one bearing, so that a deflection of a robot axis of the articulated robot due to contact forces and a resulting change in position of the screw unit can be at least partially compensated. The application also relates to a method for building a screw system in which a compensation module is arranged between an articulated arm robot and a screw unit.

The utility model relates to the technical field of filling equipment, and discloses a bottle clamping and positioning device of a cap screwing machine and a cap screwing system. The bottle clamping and positioning device of the cap screwing machine comprises a bottle feeding star wheel, a bottle clamping assembly and a protection plate assembly. An elastic clamp of the bottle clamping assembly comprises two clamping arms, the middle sections of the two clamping arms are connected through an elastic piece, one end of each clamping arm is rotationally connected with a rotating star wheel of the bottle clamping assembly, and a clamping space is formed by a gap between the other ends of the two clamping arms. A groove is formed in the periphery of the bottle feeding star wheel and used for containing a bottle body, and the bottle feeding star wheel can rotate and stir one clamping arm to rotate relative to the rotating star wheel so that the bottle body can be located in the clamping space. The protection plate assembly is arranged on the periphery of the bottle clamping assembly in a surrounding mode and comprises a first protection plate and a second protection plate, and the first protection plate is used for guiding the moving direction of the bottle body when the elastic piece rotates to the first position so that the bottle body in the groove can enter the clamping space; and the second protection plate is used for pressing the bottle body in the clamping space when the elastic piece rotates to the second position.

The screw system for joining components requiring high clamping forces for the screw connection, wherein the screw system comprises a screw unit connected to an articulated robot arm, which includes a motor for the rotary drive, a torque shaft, a tool holder for a screw tool and a feed head, which lie on a common screw axis, is characterized in that the screw unit is pivotably mounted about a ball-shaped joint which is arranged in the screw axis, so that a deflection of a robot axis of the articulated robot arm due to clamping forces and a resulting tilt of the screw unit is compensated by pivoting it, so that the screw axis maintains its perpendicular position to the plane of the components to be joined.

The invention discloses a five-axis robot configuration synthesis method integrating a 2R1T parallel mechanism, and belongs to the technical field of robot manufacturing. A two-rotation and one-translation (2R1T) parallel mechanism is a core function module of a five-axis robot, most of the 2R1T parallel mechanisms are parallel mechanisms formed by connecting a plurality of kinematic pairs (such as an R pair, an S pair, a P pair, a U pair and a C pair) in series to form a kinematic branch chain and connecting a plurality of kinematic branch chains in parallel, the two ends of the kinematic branch chain are connected with a static platform and a movable platform respectively, calculation is carried out based on a PRU type kinematic branch chain, and the two-rotation and one-translation (2R1T) parallel mechanism is formed. A series of 2R1T parallel mechanism topological configurations are obtained through the spiral theory, a 2R1T parallel mechanism motion spiral system is analyzed, the 2R1T parallel mechanism and the single-degree-of-freedom joint module are reasonably configured, and it is ensured that the five-axis robot has the motion performance meeting the working requirement.

The present disclosure provides a fiducial screw system. The system comprises a fiducial screw having a screw shaft configured to be inserted into a bone material and a screw head having or forming a fastening interface configured to cooperate with a fastening tool for inserting the fiducial screw into the bone material. The system further comprises an elongated tube forming a guiding channel, wherein the elongated tube has a proximal longitudinal end and a distal longitudinal end, and wherein the distal longitudinal end is shaped to be attachable or attached to the fiducial screw, e.g., to its head, and the proximal longitudinal end forms a guiding opening leading into the guiding channel.

The invention discloses a multiplexing expansion method for a T / R assembly screw screwing system. The method comprises the steps that an assembly point location function is obtained according to the type of a T / R assembly and the size of a pin; the coordinates of the assembly point positions are stored in a locking coordinate setting interface in a teaching mode; selecting the type of the current T / R assembly and the size of a pin according to the coordinates in the locking coordinate setting interface, and obtaining a function value of the current assembly point location; controlling a pin gun to move to the current assembly point position for locking through the function value; whether the locking parameters measured in the locking process are within a preset range or not is judged, and if the locking parameters are within the preset range, the next assembly point position is assembled; if the locking parameter is not within the preset range, displaying a window containing prompt information, and reassembling the assembly point location in response to a window rehitting operation, or assembling the next assembly point location in response to a window skipping operation; and until the point position index of the single assembly reaches the maximum value of the point position of the single assembly.

An electromechanical disc brake comprising a caliper (102), brake pads (P1, P2), a piston (111) mounted for translational movement within the caliper (102) along a longitudinal axis (X), and an electromechanical actuator (108) configured to move the piston (111) against the brake pad (P1) and apply it against a brake disc, said electromechanical actuator (108) comprising an electric motor (M), a reduction system (R), a screw-nut system for translational movement of the piston (111), wherein the reduction system (R) comprises a planet carrier (2) carrying planet gears (4), a planet gear (1) rotated by the electric motor, a fixed ring gear (6) having internal teeth (16), and wherein said planet gears (4) are double planet gears comprising a first pinion (4.1) meshing with the planet gear (1) and a second pinion (4.2) engaging the inner teeth (16) of the crown (6), the said first (4.1) and second (4.2) pinions being fixed together in rotation. [Fig. 2].

The utility model relates to the field of automobile part conveying, in particular to an automobile painting baking varnish rail conveying device which comprises a support, a conveying belt and adjusting plates, conveying rails are arranged at the upper end of the support, the conveying belt is installed in the conveying rails, the adjusting plates are arranged at the lower ends of the front conveying rail and the rear conveying rail, screws are arranged in the adjusting plates, and the side faces of the screws are meshed with installation blocks. The conveying device has the advantages that the distance between the conveying rails can be flexibly adjusted by adjusting the motor and the screw system so as to adapt to automobile parts of different specifications, and universality and flexibility of the conveying device are enhanced; the telescopic sleeve, the buffer plate and the pressure sensor are arranged at the tail end of the conveying rail, when components reach the tail end of the rail, the components can play a role in buffering, and once an abnormal pressure value is detected, the control system can automatically stop the conveying belt to prevent the components from being damaged or separated from the rail due to impact, so that the operation safety is improved.

The utility model relates to the technical field of automobile braking, in particular to a modular electromechanical brake based on a reverse planetary roller screw, which mainly comprises a reverse planetary roller screw pair and a gear compound transmission system consisting of a main rack, a first gear, a second gear, a reversing gear, a first auxiliary rack and a second auxiliary rack. The technical scheme has the advantages that compared with a standard planetary roller lead screw, the reverse planetary roller lead screw pair has a smaller return clearance, so that mechanical lag is reduced; the reverse planetary roller lead screw pair can more effectively control and distribute friction force, so that the friction force between rollers is minimized, and the energy loss is reduced; and moreover, the reverse planetary roller screw pair has higher transmission rigidity, which means that the deformation of the screw system is small under the same load. In conclusion, the brake can respond to the operation of a driver more quickly.