158 results about "Mechanical joint" patented technology

The invention relates to the technical field of robot joint control, and discloses a robot dog mechanical joint control method. The method comprises the following steps: acquiring a whole-body joint real-time sensing data set which covers the torque reading of a multi-axial force sensor, the angle data of a joint encoder and the body attitude data of an inertial measurement unit; motion state compensation is carried out on the sensing data based on a dynamic window mechanism, and a dynamic compensation matrix containing kinematics compensation parameters is generated; and inputting the multi-modal motion control data set into a gradient descent model under space-time constraint to complete multi-modal motion feature fusion so as to obtain a fusion motion control data set. Joint behavior abnormity is detected through a Lyapunov stability analysis algorithm, and abnormal nodes are identified; and iteratively optimizing control parameters through a fuzzy PID optimization algorithm to generate an optimized control parameter set, finally constructing a three-dimensional virtual motion space model, and establishing a dynamic mapping relationship between a virtual track and an actual mechanism.

The utility model provides a connecting arm, a mechanical arm and cleaning equipment. The mechanical arm comprises a joint arm and mechanical joints which correspond to and are connected with the joint arm, the mechanical joints are installed on the corresponding joint arm through installation structures, the connecting arm comprises an arm body, and the two ends of the arm body are each provided with a connecting part which is connected with one mechanical joint. The mechanical joints are configured to enable the connecting arms and the corresponding joint arms to be mutually folded or unfolded; and the connecting parts are configured to be accommodated in accommodating spaces formed in the corresponding articulated arms, and can move in the accommodating spaces. Therefore, the connecting parts and the joint arms which correspond to each other can be arranged in a relatively attached manner, the connecting arms can be accommodated in the accommodating spaces of the joint arms after being unfolded or folded relative to the joint arms, and the design requirements of compact structure and relatively small size of the mechanical arm are met.

The invention discloses a hinge assembly, a mechanical joint and a robot. A plurality of structural members of the hinge assembly comprise a first structural member, a second structural member and a third structural member. The plurality of bearings of the hinge assembly includes a first bearing and a second bearing. In the axial direction, the bearing seat of the second structural part is located between the bearing seat of the first structural part and the third structural part, the first bearing ring is located between the first bearing and the second bearing, and the two end faces of the first bearing ring abut against the inner ring of the first bearing and the inner ring of the second bearing correspondingly. The second bearing ring is located between the second bearing and the third structural part, and the two end faces of the second bearing ring abut against the inner ring of the second bearing and the third structural part correspondingly. The hinge assembly further comprises a fastening assembly, and the fastening assembly fastens the inner ring of the first bearing, the first bearing ring, the inner ring of the second bearing, the second bearing ring and the third structural part together in the axial direction. Therefore, linkage of the third structural part, the inner ring of the first bearing and the inner ring of the second bearing can be achieved.

1. The name of the design product: exhaust cover (general motorcycle - mechanical splicing anti-scalding). 2. The use of the design product: for motorcycle exhaust anti-scalding. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The invention discloses a coffee robot mechanical arm control method and system based on a knowledge graph, relates to the technical field of mechanical arm control, and aims to solve the problems that in the prior art, displacement deviation of a mechanical joint and deviation of a matching point position are prone to causing coffee spilling and leakage, and the reliability is poor. The method specifically comprises the following steps: monitoring the stability of the execution end covered by the whole system, analyzing the matching degree of the executed end, performing double-end fault-tolerant fusion judgment and performing abnormal operation traceability regulation and control, so as to solve the technical problem that the operation error is further aggravated due to the fact that the cooperation efficiency between the execution end and the controlled object is low. Pre-judgment and real-time intervention are realized through threshold comparison and trend analysis, so that the probability of coffee making failure is remarkably reduced; a knowledge graph is taken as a core, execution logic can be updated based on real-time data, and dynamic adaptation of equipment aging adaptation-process adjustment compatibility-raw material change response can be realized in combination with environment and raw material parameter traceability abnormity inducements.

The application aims to provide a bionic mechanical joint structure, which comprises an A connecting member, a B connecting member, and a linkage member arranged between the A connecting member and the B connecting member; the A connecting member is provided with an A first connecting segment, an A second connecting segment and an A third connecting segment which are arranged on one side of the linkage member; the B connecting member is provided with a B first connecting segment, a B second connecting segment and a B third connecting segment which are arranged on one side of the linkage member; the linkage member is provided with an A first matching segment, an A second matching segment and an A third matching segment which are arranged on one side of the A connecting member, and the linkage member is provided with a B first connecting segment, a B second connecting segment and a B third connecting segment which are arranged on one side of the B connecting member; the A connecting member and the linkage member, and the B connecting member and the linkage member form a first connecting relationship of a ring-shaped connection layout; the A connecting member and the B connecting member have a third connecting relationship of a staggered connection layout. Through the arrangement of the bionic mechanical joint structure, based on the application of the linkage member arranged between the A connecting member and the B connecting member, and combined with the first connecting relationship of the first connecting cable and the third connecting relationship of the third connecting cable, the joint structure has excellent support performance, motion range and joint flexibility, and has drivability, which meets the high motion performance setting requirement of the mechanical joint.

The utility model discloses a handle angle adjusting structure, which relates to the field of mechanical joint structures, and adopts the technical scheme that the handle angle adjusting structure comprises a handle and a base, a notch of the handle cavity groove and a notch of the base cavity groove are folded to form an angle adjusting cavity, and the angle adjusting cavity is in axial sliding fit with a handle locking block; the handle locking block is matched with the side wall of the angle adjusting cavity through an axially-arranged key groove structure, the handle cavity groove is provided with a contact inclined face and a handle driving block, and the handle driving block is provided with a driving inclined face matched with the contact inclined face. A handle elastic piece is arranged between the handle locking block and the base cavity groove. The handle driving block is connected with one end of a driving rope, and the other end of the driving rope extends to the handle; the handle driving block is adopted to lock and unlock the relative angle of the handle and the base, the control process is more efficient and convenient, and stability and firmness are better.

A joint restraint assembly for a pipe, the joint restraint assembly including an annular body, and a wedge assembly received within an opening of a wedge housing of the annular body. The wedge assembly includes a bolt including a flange, and a low-friction material positioned between the flange and an interior surface of the wedge housing, which low-friction material is adapted to slidably engage the interior surface during relative movement between the wedge assembly and the wedge housing. A wedge member is attached to the bolt so that the flange is positioned between at least a portion of the low-friction material and at least a portion of the wedge member. The wedge member is adapted to engage the pipe.

The application discloses a coffee robot mechanical arm control method and system based on a knowledge graph, relates to the technical field of mechanical arm control, and aims to solve the technical problems that in the prior art, displacement deviation of mechanical joints and offset of matching points are prone to cause coffee spilling, and low coordination efficiency between an execution end and a controlled object further aggravates operation failure, specifically, overall system covers execution end stability monitoring, executed end matching degree analysis, double-end fault tolerance fusion judgment, and abnormal operation traceability regulation, from mechanical action deviation, container positioning error to material spilling and process abnormality, and through threshold comparison and trend analysis, early prediction and real-time intervention are realized, so that the probability of coffee production failure is significantly reduced; taking the knowledge graph as the core, not only can execution logic be updated based on real-time data, but also can environment and raw material parameter traceability abnormal inducement be combined to realize dynamic adaptation of "equipment aging adaptation-process adjustment compatibility-raw material change response".

This invention relates to a humanoid robot, specifically a parallel rotating mechanical joint based on a ring-shaped guide rail, mimicking the rotation of a human neck. The aim is to provide a parallel rotating mechanical joint based on a ring-shaped guide rail to achieve three degrees of freedom in the movement of a biomimetic human neck joint while ensuring high rigidity and motion accuracy. Furthermore, the joint features a simplified structure, good support performance, and sufficient movement space for the neck joint. The technical solution is a parallel rotating mechanical joint based on a ring-shaped guide rail, characterized by: a head motion platform, a neck ring-shaped guide rail base, and three PSS (Personal Stability Support) link branches connected in parallel between the head motion platform and the neck ring-shaped guide rail base; the center of the head motion platform and the center of the neck ring-shaped guide rail base are connected by a composite rotating shaft.

The invention discloses a mechanical joint surface normal contact stiffness calculation method based on ellipsoid contact and fractal theories, and belongs to the field of dynamic and static characteristic analysis of numerical control machine tools. Comprising the steps that a real contact micro-convex body is equivalent to contact of an ellipsoid and a rigid plane, and a contact micro-convex body normal rigidity model considering long and short axes of the ellipsoid is established; introducing a domain expansion factor, constructing a mechanical joint surface normal contact stiffness three-dimensional fractal correction model, and calculating a fractal dimension D and a roughness coefficient G; analyzing and extracting a space stress distribution matrix of the joint surface by adopting a refined finite element model; calculating the normal contact stiffness of the mechanical joint surface, and obtaining the inherent frequency in combination with a finite element method; and performing a modal hammering test to verify the accuracy of the calculation method. According to the method, the ellipsoidal hypothesis of the contact micro-convex body is provided, the scale independence and the normal contact mechanical behavior of the surface microstructure are fully considered, and calculation of the normal contact rigidity of the formed mechanical joint surface provides theoretical support for dynamic and static characteristic analysis of a numerical control machine tool.

The invention discloses an automatic bending robot for a metal sheet. The automatic bending robot comprises a three-axis mechanical arm, a robot base, an execution end mounting platform, an execution end cross beam, a suction cup unit, a lifting clamping strip and a fixed clamping strip. The three-axis mechanical arm comprises an arm a, an arm b and an arm c; a robot base is connected with one end of an arm a through an electric mechanical joint a, the other end of the arm a is connected with one end of an arm b through an electric mechanical joint b, the other end of the arm b is connected with one end of an arm c through an electric mechanical joint c, an execution end mounting platform is fixed to the tail end of the arm c, and an execution end cross beam is fixed to the execution end mounting platform; the multiple suction cup units are distributed in a linear array mode in the length direction of the execution end cross beam, and all the suction cup units are fixedly connected with the execution end cross beam through suction cup supports. Accurate grabbing and feeding can be independently completed, and the bending action can be directly executed.

The application relates to the technical field of cables, in particular to a high-strength bending-resistant cable for mechanical joints and a preparation method thereof. The cable comprises a cable core and a sheath layer outside the cable core; the cable core is a stranded structure of a stress buffer wire core and multiple insulated wire cores, and on the cross section of the cable core, the multiple insulated wire cores are arranged in a ring shape with the stress buffer wire core as the center, and the outer part of each insulated wire core is coated with a lubricating oil coating; the stress buffer wire core is a filament polyester fiber bundle stranded structure with a bulkiness of greater than or equal to 20 cm3 / g and a compression recovery rate of greater than or equal to 75%. In the process of frequent bending and twisting of the mechanical joint relative movement, the extrusion and friction between the insulated wire cores are small, the abrasion phenomenon of the insulated wire cores is greatly reduced, the whole cable core has good structural strength, excellent bending resistance and excellent twisting resistance, and has a long service life.

The present application discloses a mechanical joint, a mechanical arm, and a self-propelled cleaning device, wherein the mechanical joint is configured to connect a support arm of the mechanical arm to a base, and the mechanical joint includes a first drive unit, a rotary joint, and a first transmission assembly, the first drive unit is provided on the base, and the first transmission assembly is used to be transmissibly connected to the first drive unit and the rotary joint, the rotary joint is connected to a rotating seat, and the first drive unit is used to rotate the rotary joint via the first transmission assembly and drive the rotating seat to rotate relative to the base.

A mechanical joint (100), a mechanical arm (200) and a cleaning apparatus (300). The mechanical joint (100) comprises: a connecting frame (110) and a lifting assembly (120), wherein the connecting frame (110) is hinged to a base (211) of the mechanical arm (200); the lifting assembly (120) comprises a nut (121), a lead screw (122) and a driving part (123), wherein the nut (121) and the lead screw (122) are connected by means of non-self-locking threads and are hinged to the base (211), the driving part (123) is arranged on the connecting frame (110), a first end of the lead screw (122) is connected to the driving part (123), and a second end of the lead screw (122) passes through the nut (121); and the driving part (123) is configured to drive the lead screw (122) to rotate, such that the lead screw (122) and the nut (121) move relative to each other to drive the connecting frame (110) to be raised or lowered relative to the base (211).

This invention relates to the field of measuring tools, specifically disclosing a mechanical joint clearance measuring device for measuring joint clearance. The joint includes a first swing member and a second swing member. The first swing member has a rotating shaft, and the second swing member has a rotating hole. The rotating shaft is inserted into the rotating hole and rotatably engages with the second swing member. The measuring device includes a first fixing member, a second fixing member, a probe, a resistive element, and a data processor. The first fixing member positions one of the probe and the resistive element on the rotating shaft and is coaxial with the rotating shaft. The second fixing member positions the other of the probe and the resistive element on the wall of the rotating hole of the second swing member and is coaxial with the rotating hole. The probe and the resistive element abut against each other. The probe is electrically connected to the data processor. The resistive element has at least three connecting lines spaced apart along its circumference, and these at least three connecting lines are electrically connected to the data processor. This measuring device can provide high-precision joint clearance values ​​and also visually display the changes in clearance at each part of the joint.

To provide: a mechanical joint that does not require rotation or application of a large load for joining, can transmit a torsional load without additionally incurring excessive costs, and does not come off or reduce the strength of the joint; a joining method for the mechanical joint; a steel pipe fitted with the mechanical joint; a structure having the steel pipe as a constituent element; a construction method for the structure; a design method for the mechanical joint; and a manufacturing method for the mechanical joint.SOLUTION: A mechanical joint 1 of the present invention comprises one or more stages of annular grooves 15 formed on an outer peripheral surface of a male joint 3 and an inner peripheral surface of a female joint 5 so as to face each other when insertion is complete, a C-shaped ring member 17 that can be positioned within the annular groove 15 so as to straddle the male joint 3 side and the female joint 5 side, anti-rotation pin insertion holes 13M, 13F provided in the male joint 3 and the female joint 5, and an anti-rotation pin 11 that passes through the anti-rotation pin insertion hole 13F and a C-shaped cutout portion 19 of the female joint 5 and reaches the anti-rotation pin insertion hole 13M of the male joint 3.SELECTED DRAWING: Figure 1

The present invention discloses a circular steel tube concrete column-reinforced concrete transfer beam node, comprising an outer ring support plate arranged between the circular steel tube concrete column and the reinforced concrete transfer beam, stiffening ribs under the support plate, a primary mechanical joint on the support plate, and cylindrical dowel bars; the annular steel plate of the outer ring support plate is welded around the outer edge of the top of the circular steel tube column and fixed to the steel tube via stiffening ribs; the primary mechanical joint is vertically welded to the annular steel plate, and the cylindrical dowel bars in the mechanical joint serve as cylindrical longitudinal bars within the height range of the reinforced concrete transfer beam. In the structural arrangement of the present invention, the steel tube does not extend into the area where the steel bars are arranged in the transfer beam, ensuring that the longitudinal bars of the beam can freely cross the column position; the addition of a steel support plate at the top of the steel column improves the shear bearing capacity of the column side beam end; longitudinal bars are arranged on the support plate to form a large-diameter concrete cylinder, ensuring the bending resistance of the column in the node area, making the beam-column node close to a rigid connection; a sufficient number of primary mechanical joints are welded on the annular plate to facilitate the construction operation of the cylindrical longitudinal bars.

The application discloses a pre-tightening mechanical joint with an intermediate sleeve, a precast concrete pile and a connecting method, wherein the joint comprises a plug rod provided with a plug; a large nut provided with a receiving cavity; a clamping mechanism arranged in the receiving cavity; a pre-tightening nut in threaded connection with the large nut; and an intermediate sleeve sleeved on the pre-tightening nut and located outside the large nut, wherein the intermediate sleeve is provided with a transmission structure, and the transmission structure is used for driving the intermediate sleeve to rotate by a driving part when the plug is clamped with the clamping mechanism, and then driving the pre-tightening nut to rotate and move along the large nut in the axial direction, so as to lock the plug and the clamping mechanism in the axial direction of the large nut. The pre-tightening mechanical joint disclosed by the application effectively eliminates the gap between the plug and the pre-tightening nut, so that when the precast concrete pile connected by the mechanical joint is subjected to a pulling force, a shearing force or a bending force, the connected part of the precast concrete pile will not crack and generate cracks.

The invention aims at providing a bionic mechanical joint structure. The bionic mechanical joint structure comprises a first connecting piece, a second connecting piece and a linkage piece arranged between the first connecting piece and the second connecting piece. A first connecting section, a second connecting section and a third connecting section are arranged on the side, corresponding to the linkage piece, of the first connecting piece in an extending mode. A first connecting section B, a second connecting section B and a third connecting section B are arranged on one side, corresponding to the linkage piece, of the connecting piece B in an extending manner; a first matching section, a second matching section and a third matching section are arranged on the side, corresponding to the first connecting piece, of the linkage piece, a first connecting section, a second connecting section and a third connecting section are arranged on the side, corresponding to the second connecting piece, of the linkage piece, and the first connecting piece, the second connecting piece and the linkage piece are connected through a first connecting section, a second connecting section and a third connecting section respectively. And forming a first connection relationship of the annular connection layout. Through the arrangement of the bionic mechanical joint structure, the joint structure can have certain supporting performance and has a large movement range and joint flexibility, and the high movement performance setting requirement of the robot joint is met.

The utility model belongs to the field of child manual locks, and particularly relates to a child manual lock mechanical joint which comprises a base, an adjusting cover is in contact with the upper end of the base, connecting rods are fixedly connected to the inner sides of connecting lugs of the base and the adjusting cover, and connecting frames are rotationally connected to the outer sides of the connecting rods. The outer side of the connecting frame is fixedly connected with a locking belt, an adjusting mechanism is arranged in the locking belt, the middle of the upper end of the base is fixedly connected with a fixing nail, the outer side of the fixing nail is movably connected with a connecting cover, and a first spring is arranged on the outer side of the fixing nail. The adjusting cover, the fixed tooth groove ring, the connecting cover and other structures are additionally arranged on the base, rotation of the adjusting cover can be limited through clamping connection between the fixed tooth groove ring and the limiting tooth ring in the using process, and therefore the adjusting cover can rotate by multiple angles to be used; and the adjusting freedom degree of the mechanical joint can be effectively increased.

To provide a joint device capable of joining strength members with sufficient strength using a small number of fasteners without strict control of fastening force. [Solution] This device joins strength members each having a plurality of hanging holes, and is provided with a main joining device having protrusions that fit into two or more hanging holes in each strength member and insertion holes that overlap with one or more other hanging holes in each strength member while holding the strength members in a predetermined joining posture, and fasteners that fasten the main joining device to the strength members by inserting through the insertion holes and the hanging holes that overlap with them.

In a construction method in which an excavation device having a bit configured to expand and contract its outer diameter is inserted into a steel pipe pile, and the steel pipe pile is inserted into the excavation hole at the same time as the ground is excavated by the excavation device, a configuration is provided that can improve workability. [Solution] The mechanical joint 10 includes a cylindrical box joint 11 attached to the end of a steel pipe 2, with a box-side keyway portion 11c extending in the circumferential direction formed on its inner surface; a cylindrical pin joint 12 attached to the end of another steel pipe 2, with a portion of it positioned radially inward relative to the box joint 11 when combined with the box joint 11, and with a pin-side keyway portion extending in the circumferential direction formed on its outer surface; and a load-transmitting key 13 arranged to straddle the box-side keyway portion and the pin-side keyway portion. The inner diameter of the pin joint 12 is larger than the outer diameter of the bit 102 in its reduced diameter state. The outer diameter of the box joint 11 is equivalent to the outer diameter of the bit 102 in its expanded diameter state.

The invention relates to the technical field of engineering machinery, and discloses an engineering machinery image fusion display method and device based on attitude guidance. Collecting a multi-dimensional inclination angle parameter for indicating a real-time operation inclination angle condition of a multi-dimensional part of the engineering machinery and a multi-dimensional environment image parameter for indicating a real-time environment condition in a preset range of the engineering machinery; according to the multi-dimensional inclination angle parameters, attitude parameters, at least including bucket tip coordinate parameters and joint position coordinate parameters of at least one mechanical joint, of the engineering machinery are calculated; based on the attitude parameters and the multi-dimensional environment image parameters, a multi-dimensional display image of the engineering machine is generated, and the multi-dimensional display image is at least used for indicating one or more of landing point projection information of the bucket, bucket elevation information, distance information of the bucket relative to a cockpit corresponding to the engineering machine and real-time highest position information. Therefore, the accuracy and comprehensiveness of engineering machinery image display can be improved.

The application discloses a multi-tooth card jointed pre-tightening mechanical joint, a precast concrete pile and a connecting method, wherein the joint comprises a plug rod with a plug, a large nut with a receiving cavity, a pre-tightening nut with a pre-tightening nut threaded connection part and a pre-tightening nut driving part, a multi-tooth card assembly arranged in the pre-tightening nut, and when the multi-tooth card assembly is jointed on the plug, the driving part can drive the pre-tightening nut driving part from the side of the pre-tightening nut, so that the pre-tightening nut is rotated and moves axially along the large nut, thereby locking the plug and the pre-tightening nut in the axial direction of the large nut. The multi-tooth card jointed pre-tightening mechanical joint disclosed by the application can effectively eliminate the axial gap among the plug, the multi-tooth card assembly and the pre-tightening nut, so that the precast concrete pile connecting part will not crack and generate cracks when subjected to the action force such as a pulling force, a shearing force or a bending force.

The purpose of the present invention is to confirm the joining of a mechanical joint more easily, regardless of the state of the mechanical joint or a connected pipe. This shape measurement method is for analyzing, for a set of mechanical joints including a male joint and a female joint corresponding to the male joint, an interference level between an uneven part of the male joint and an uneven part of the female joint. The shape measurement method includes: a joining complete state setting step of setting, on the basis of data of the uneven shapes of the male joint and the female joint, a joining complete state in which joining of the male joint and the female joint is complete; and an interference analysis step of analyzing, in the joining complete state, the interference level between the uneven part of the male joint and the uneven part of the female joint corresponding to the uneven part of the male joint.

A composite panel assembly includes a first composite panel having a first core structure. The first core structure includes a first core structure first face and a first core structure second face. The first composite panel further includes a first composite panel first composite sheet and a first composite panel second composite sheet. The first composite panel first composite sheet bonded to the first core structure first face and a first composite panel second composite sheet bonded to the first core structure second face. An interlocking feature is defined in the first core structure. The composite panel assembly further includes a component having a portion that extends into the interlocking feature such that an interlocking mechanical joint is formed between the first composite panel and the component.

The application discloses an integrated motion mechanical joint module, which comprises a motor assembly and a speed reduction assembly. The motor assembly comprises a stator assembly, a rotor assembly and a control unit. The stator assembly is provided with a first hollow shaft body, and the rotor assembly is provided with a second hollow shaft body; the two are nested with each other and are provided with a bearing therebetween; the bearing is integrated on the same output end side of the rotor, and the non-output end bearing is cancelled. The rear cover is provided with an embedded connector interface, so that a compact layout is realized. The rotor core is made of die-cast aluminum and a neodymium-iron-boron magnetic ring to form a 0.2-0.38mm gap and fill with heat-conducting glue, so that the thermal expansion matching problem is solved. A plastic magnetic isolation sleeve is arranged to isolate the interference of the magnetically conductive rotor body on the magnetic encoder signal. The speed reduction assembly is internally provided with powder metallurgy small balls to realize long-acting lubrication. The application greatly compresses the axial and radial dimensions of the joint module, reduces the rotational inertia, and improves the reliability and assembly convenience in an extreme environment.

An articulated assembly, a mechanical joint and a robot. The plurality of structural members of the articulated assembly include a first structural member, a second structural member, and a third structural member. The plurality of bearings of the articulated assembly includes a first bearing and a second bearing. Along the axial direction, two end surfaces of the first receiving ring are respectively in abutment with the inner ring of the first bearing and the inner ring of the second bearing, two end surfaces of the second receiving ring are respectively in abutment with the inner ring of the second bearing and the third structural member. The articulated assembly further includes a fastening assembly that fastens together the inner ring of the first bearing, the first receiving ring, the inner ring of the second bearing, the second receiving ring and the third structural member in the axial direction.