790results about How to "Achieve bending" patented technology

The invention discloses a multi-field coupled environment simulating and online monitoring/observing system. The system comprises: a main body test box provided with a quartz observing window and an infrared window; a mechanical loading module comprising two coaxially arranged mechanical loading shafts and respectively connected with the main shafts of a universal testing machine and a sample clamping device; a multi-field service environment module arranged outside the main body test box and comprising an infrared laser rapid heating device, an X-ray radiation device, a corrosion gas box and a cooling system and respectively used for realizing heating, irradiating, corroding and cooling environments; and a damage online monitoring/observing module comprising a surface/interface strain real-time observation system, an in-situ fracture behavior observation system, a damage signal collecting system and an infrared thermodetector which are arranged outside the main body test box, and damage signal detectors arranged at the upper end and the lower end of a tested sample, and wherein devices contained in the damage online monitoring/observing module are respectively used for real-time capturing of strain information, in-situ fracture image information, damage information and temperature information, and synchronously run through a cynchronous control system.

The invention relates to a mobile terminal with flexible screens. The mobile terminal includes a first main body, a second main body and a flexible screen assembly; the first main body and the second main body are arrange at intervals; the flexible screen assembly includes metal sheets which are overlapped with one another sequentially, a flexible display screen and a flexible touch screen; two ends of each metal sheet are fixedly connected with the first main body and the second main body respectively; and each metal sheet, the flexible display screen and the flexible touch screen respectively comprise a bending zone, and the bending zones can be bent or unfolded, so that the first main body and the second main body can have opening and closing angles ranging from 0 degree to 180 degrees. According to the mobile terminal with the flexible screens provided by the invention, when the bending zones are bent, stacking of wrinkles in bending can be prevented since the bending deformation quantity of the bending zones is constantly located between the interval of the first main body and the second main body; and the mobile terminal can be bent by means of the bending features of the metal sheets, the flexible display screen and the flexible touch screen, and therefore, a rotation shaft or other supports are not required to be adopted additionally, and therefore, the mobile terminal with the flexible screens is compact and simple in structure.

The invention discloses a device for hand rehabilitation training with the function of wrist rehabilitation training, which effectively solves the problems in the prior art that the training device is bulky and not easy to carry, and has the advantages of simple structure, easy operation and high functionality. As follows: the device includes at least one two-joint finger training mechanism and a wrist training mechanism; wherein, each two-joint finger training mechanism includes a power drive source fixed by the joint bracket of the finger near the end of the finger, and the push rod of the power drive source is connected to the finger near the end of the finger. The joint driving part is connected to control the rear joint of the human finger; the finger proximal end joint support, the finger proximal finger end joint driving part is fixed by the finger proximal finger end joint support and the finger proximal finger end joint support defines the position of the finger proximal finger end joint driving part The moving path is the far fingertip joint support of the finger, and the multi-link mechanism is connected with the finger far fingertip joint support.

The invention relates to a clamp for holding vessels, in particular, bottles in vessel transport machines, comprising two clamping arms (3, 5, 51) which can be displaced in relation to each other in order to open and close the vessels. Each clamping arm (3, 5, 51) comprises a gripping arm (11, 13, 53) and at least one clamping arm (3, 5, 51) comprises a counter arm (19, 21, 55). The vessels are centred in an exact manner and the pressure forces can be absorbed in order to simplify the construction thereof. The clamping arm is embodied as a single piece with a gripping arm and a counter arm such that the gripping arm is dimensionally stable and the counter arm is elastic.

A step type variable speed scanning method for accuracy control of laser bend forming belongs to the technical field of plastic forming. A laser coating material is coated on the scanning area of a surface to be scanned, a sheet material to be detected is clamped on one side, the scanning speed of the scanning area is determined by the diagram method to generate the step type variable speed scanning scheme corresponding to the scanning area, and finally the sheet material to be detected is scanned and processed according to the step type variable speed scanning scheme in a laser numerical control manner. The measure and check after processing are performed after the sheet material is cooled naturally. The method of the invention can effectively reduce the phenomenon of border effect, enhance the forming accuracy of the sheet material, thereby realizing the different energy output of the different heating area to balance the geometric constraint of the sheet material and improve the border effect.

The invention relates to the technical field of machining equipment, in particular to a flexible bending center. The flexible bending center comprises a positioning machine table, a feeding device penetrating the positioning machine table to carry out feeding and a bending device used for machining a material. The positioning machine table comprises two emptying tables and a positioning mechanism arranged on the emptying tables. The feeding device comprises a clamping rotating mechanism, a pushing mechanism arranged on the clamping rotating mechanism and a longitudinal moving drive mechanism used for driving the clamping rotating mechanism to move, and the bending device comprises a bending machine table, a pressing mechanism arranged on the bending machine table and a turnover mechanism used for bending the material. The center is reasonable in structural design and sensitive in action, automatic feeding and bending of boards and changes of board bending positions can be achieved, the bending work efficiency is improved, board positioning is accurate, and quality of bending products is ensured.

The invention discloses an exoskeleton type finger rehabilitation training device driven by an active driver and a passive driver together. The exoskeleton type finger rehabilitation training device driven by the active driver and the passive driver together comprises a force feedback driver and a finger exoskeleton mechanism, wherein the force feedback driver comprises a shell body, a motor and a magnetorheological fluid damper, a rotary wheel is connected between the motor and the magnetorheological fluid damper through a coupler, a hauling cable is wound on the rotary wheel, the finger exoskeleton mechanism comprises a support, a linear guide rail and a finger fixing structure, a sliding block is arranged on the linear guide rail and is connected with the hauling cable, a first connecting block is fixed on the sliding block, an L-shaped crank is connected at the lower end of the first connecting block in a rotary mode, a middle finger knuckle block is connected at the other end of the crank in a rotary mode, and the other end of the middle finger knuckle block is connected on the finger fixing structure through a second connecting block. Due to the fact that the finger exoskeleton mechanism is a slider-crank mechanism similar to a plane four-bar mechanism, a given law of movement can be achieved, and the exoskeleton type finger rehabilitation training device driven by the active driver and the passive driver together is light in movement and high in transmission efficiency.

The invention provides a folding mechanism of a mobile terminal and the mobile terminal. The folding mechanism comprises a soft supporting structure and a hard supporting structure inlaid in the softsupporting structure. The folding mechanism consisting of the soft supporting structure and the hard supporting structure inlaid in the soft supporting structure is used as a part connected with a first shell and a second shell; when the mobile terminal is expanded, the folding mechanism formed by the soft supporting structure and the hard supporting structure is expanded to form a flat plate typestructure connected with the first shell and the second shell; and when the mobile terminal is folded, one side of the soft supporting structure, which is deviated from the hard supporting structure,is shrunk inwards, so that the continuity of connection of the folding mechanism and the first shell as well as the second shell is improved, generation of an abrupt structure on the appearance of the mobile terminal is avoided, and an appearance effect of the mobile terminal is improved.

The invention discloses a bending punching die, which relates to a punching die for machinery processing. The punching ide comprises an upper die base, an upper clamping plate, a lower template and a lower die base, wherein the upper die base is connected with the upper clamping plate; the lower template is connected with the lower die base; the lower template is provided with a groove; the upper clamping plate is provided with a bending punch; the bending punch is provided with a V-shaped punching end which is matched with the groove of the lower template; and the top end of the bending punch is provided with a screw hole. Due to the adoption of the technical scheme, the V-shaped punch of the bending punch is matched with the groove of the lower template, bending of machine elements is realized through one-time punching, and the bending degrees of the machine elements are kept consistent.

The invention aims to provide a mechanism for simulating the jumping of frog rear legs. The mechanism comprises a body mechanism, a thigh mechanism, a shank mechanism and a sole mechanism, wherein the body mechanism comprises a left side body supporting plate and a right side body supporting plate; the thigh mechanism comprises a left side thigh supporting plate, a right side thigh supporting plate and a thigh fixing plate; the shank mechanism comprises a shank rotating mechanism, a shank reset mechanism and a shank telescopic mechanism; the sole mechanism comprises two sole seats. According to the mechanism provided by the invention, a four-connecting rod mechanism is formed in a way that connecting rods are replaced by ropes, the design is carried out by utilizing a connecting rod principle, the simulation degree of the frog rear legs is increased, and high simulation performance is realized; the flexibility of legs is enhanced, and the effects of jumping and buffering are increased.

The invention relates to a device and a method for testing the structural fatigue of an H-shaped vertical shaft wind turbine blade. The device comprises a support base component, a distribution beam, a loading hoop, a support connecting rod and an eccentric motor, wherein the distribution beam, the loading hoop and the support connecting rod are connected together by using bolts so as to form a whole load distribution system, so that the fatigue load which acts in an upper and lower reciprocation manner can be effectively conducted. When the device is used for experiment, the fatigue bending moment distribution of the blade under various working conditions can be simulated by adjusting the length L of the distribution beam and the position B of the loading hoop, and the fatigue stress state of the blade in axial torsion and multiple attack angles can be simulated by adjusting the structural modes of the support base component and the loading hoop; the strain distribution of the blade under the fatigue loaded condition can be measured, and furthermore, the fatigue structural property of the blade can be evaluated; by only exerting one external fatigue load to the device, combined fatigue loading modes such as bending, torsion and multiple attack angles of the blade can be achieved, and the device is simple and convenient to operate, accurate and reliable in result and relatively high in universality.

The invention discloses an endoscopic surgery instrument outer sheath based on a soft continuum mechanism, and belongs to the technical field of minimally invasive surgery instruments. The endoscopic surgery instrument outer sheath comprises a plurality of flexible units, each soft unit comprises a soft air with the high ratio of expansion and contraction, a rigid connecting piece, a steel wire soft shaft, a nickel-titanium wire, a disc, a surgical instrument channel, a pretightening force support, a pretightening force air cylinder and a fastening screw. Air pressure in the air bags is controlled to change the lengths of the air bags, and space bending of the units is achieved. Under any bent state, the pretightening force air cylinders apply pretightening force to the three nickel-titanium wires, the bending rigidity of the units is controlled, the effect of changing the rigidity is achieved, and the function of passive protection is achieved. The endoscopic surgery instrument outer sheath is used as an outer sheath unit of an endoscopic surgery instrument entering a human body, the outer sheath can be bent along with the cavity of the human body, the tissue of an inner wall is prevented from being oppressed, the rigidity is changed after the endoscopic surgery instrument outer sheath reaches the position of a disease, mechanical support is provided for the surgical instrument, the tissue can be prevented from being over-pressed to be hurt through the passive protection characteristic of the outer sheath when the surgical operation is carried out, and therefore the safety and effectiveness of surgery are improved.

The invention discloses a method for preparing a flexible self-supporting graphene film doped with metal nanoparticles. Firstly, the graphene and the metal salt solution are mixed, and the mixed solution is titrated on a solid substrate and dried to form a film. The obtained film is put into ascorbic acid aqueous solution and heated for reduction to obtain a flexible self-supporting graphene film doped with metal nanoparticles inside. The graphene oxide aqueous solution was firstly titrated on a solid substrate and dried to form a film. Further, the metal salt solution is titrated on the graphene oxide film, and after drying, it is placed in an aqueous solution of ascorbic acid for heating and reduction to obtain a flexible self-supporting graphene film doped with metal nanoparticles on the surface. The method has simple preparation, few reaction steps, convenient operation, simple equipment and process requirements, cheap raw materials, and low cost, and can realize the preparation of graphene films doped with metal nanoparticles inside and graphene films doped with metal nanoparticles on the surface .

The invention relates to a multi-degree-of-freedom rigidity-adjustable pneumatic flexible operation motion arm comprising large pedestals on upper and lower ends. a central nylon wire traverses a plurality of slices in the center and is fixed on the large pedestals on two ends to form a driving framework, more than three small pneumatic arms are symmetrically distributed and are adhesively fixed on the periphery of the driving framework in the direction being parallel to the central nylon wire, the small pneumatic arms are surrounded by a composite film, annular nylon fibers which can carry out rigidity adjustment through adjusting vacuum are pasted on the outer wall of the composite film from top to bottom, a sealing clamp is fixed on the outer wall of the composite film which surrounds the outer side of the large pedestals, a packaging jacket packaged by a sealing band is fixed on the outer side of the sealing clamp, an enclosed cavity is formed between the packaging jacket and the outer wall of the composite film, the enclosed cavity is provided with a vacuum-pumping port, each small pneumatic arm is a sealing cavity formed in a way that a composite film is wound on a small top pedestal and a small bottom pedestal, and each sealing cavity is provided with a driving gas ingate. The multi-degree-of-freedom rigidity-adjustable pneumatic flexible operation motion arm is advantaged by relatively-large complex deformation and rigidity maintenance and the like.

The invention provides a sweat monitoring and sensing system, a patch and a preparation method of the patch, wherein the preparation method comprises the following steps: preparing a flexible extensible substrate; manufacturing hydrophilic tapping silicone sponge; manufacturing multiple sensing chips; transferring each sensing chip onto the flexible extensible substrate, and arranging the hydrophilic tapping silicone sponge at the top of each sensing chip. The patch has a simple structure, is convenient to prepare and is conducive to meeting monitoring requirements.

The invention discloses a metal plate bending machine which comprises an operating platform. The operating platform is vertically provided with two side plates which are in parallel with a certain distance and are characterized in that: the front part of each side plate is provided with a guiding device, the middle part of the side plate is respectively provided with a feeding device and a dadoing device; and the rear part of the side plate is provided with a bending device. In the invention, two rotatable bending knives controlled by stepping motors are adopted to realize the functions of bending and cutting; and the dadoing device is installed before a metal plate is bent, and a rack mark is pre-drawn, thereby the bending precision is improved. The metal plate bending machine provided by the invention has the advantages of full automation, reasonable structure, anti-vibration, wide bending angle range, small size, integration of bending and cutting and the like.

The invention discloses a full-automatic resistor bending machine and a resistor bending method. The full-automatic resistor bending machine comprises a feed mechanism, a pressing mechanism, cutter mechanisms, a bending mechanism and a motor. Resistors are conveyed to a preparation table by the feed mechanism; the pressing mechanism is arranged above the preparation table and compresses the resistors on a workbench from the preparation table; the cutter mechanisms are arranged on two sides of the workbench and cut off redundant pins of the resistors; pins of the resistors are bent by the bending mechanism; the feed mechanism, the pressing mechanism, the cutter mechanisms and the bending mechanism are powered by the motor. The full-automatic resistor bending machine and the resistor bending method have the advantages that the pins of the resistors can be automatically and quickly cut off and bent by the full-automatic resistor bending machine, labor is saved, and the production efficiency is improved; the multiple mechanisms are driven to act by the single motor via chains, so that the cost is saved, actions of the various mechanisms are coordinated during production, the production takt can be changed by means of adjusting the rotation speed of the motor, and the production efficiency is improved; action sequences and action moments of the various mechanisms are controlled by the aid of cams, and accordingly can be controlled precisely.