42results about How to "Simple clamping method" patented technology

The invention provides a cable-stayed bridge cable, which comprises a driving module 1, a driven module 2, a detection module 3 and a power-off protection module 4, wherein the driving module 1 takes a driving frame 5 as a mounting platform; the driven module 2 takes a driven frame 27 as a mounting platform; the detection module 3 takes a camera support frame 53 as a mounting platform; the power-off protection module 4 takes a mounting frame 56 as a mounting carrier; the driving frame 5 is connected with the driven frame 27 through connecting yokes 44 and connecting bars 45; the detection module 3 is connected with the driving frame 5 and the driven frame 27 respectively through the camera support frame 53; the power-off protection module 4 is connected with the driving frame 5 through the mounting frame 56. When an electromagnetic clutch is cut off, an electromagnet works to drive a brake band to enclasp a brake wheel, so that the robot is prevented from slipping off; and a clamping way is simple and practicable.

The invention relates to a high-low cycle complex fatigue test clamp for a mortise-joint structure of a small blade of a turbine on an aeroengine. By adoption of the high-low cycle complex fatigue test clamp, synchronous loading of longitudinal low-cycle large load, horizontal high-cycle vibration load and heat load in test of the mortise-joint structure of the small blade of the turbine is realized. The high-low cycle complex fatigue test clamp is characterized in that a top holding structure is clamped on a fatigue machine, and a turbine disc is fixed by a clamping bolt; the turbine disc isconnected with the turbine blade in a mortise-joint manner; a small blade clamp clamps a blade body of the turbine blade by means of frictional force; the bottom part of the small blade clamp is tightly screwed with a high-cycle excitation rod by a bolt, and the top part of the small blade clamp is in clearance fit with a force-transmission top plate by a shaft-hole structure; the force-transmission top plate is in clearance fit with force-transmission pulling plates by shaft-hole structures, the stability of the structure is maintained by fixed long bolts; the force-transmission pulling plates are tightly screwed with a low-cycle force applying structure by nuts; the lower part of the low-cycle force applying structure is clamped by the fatigue machine; the fatigue machine applies the low-cycle load, the excitation rod is externally connected with an exciter to apply the high-cycle load, and the mortise-joint position is externally connected with an induction heating copper coil to apply the heat load. The high-low cycle complex fatigue test clamp has the beneficial effects that stable clamping of the mortise-joint structure of the small blade of the turbine can be met, and the high-low cycle compounding fatigue under the high-temperature condition can be realized.

A pull-wire type angle measurement system of the invention relates to the angle measurement system based on a high-precision pull-wire type encoded sensor and especially relates to an apparatus applying for indirect aim gun tube rotation angle measurement. A function of the system is that a rotation angle of a gun tube which projects on a horizontal plane is measured precisely and a backlash influence of a structure of the gun itself is eliminated under the condition that structure reconstruction is not performed on indirect aim gun equipment. The system is formed by a pull-wire length measurement mechanism, a resolving circuit and a calibration circuit. The pull-wire length measurement mechanism comprises a pull-wire type encoder, a fixing and guiding device and a horizontal measurement apparatus. The resolving circuit and the pull-wire type encoder carry out data communication through a RS422 interface. A core control chip of the resolving circuit is a microprocessor based on an ARM-Cortex3 core. The calibration circuit adopts an ARM-Cortex3 series microprocessor, is connected with the resolving circuit through an RS232 interface and comprises a group of operation keyboards and a display nixie tube.

The invention belongs to the technical field of car accessory machining, and particularly discloses a car accessory grinding tool. The car accessory grinding tool comprises a box body vertically connected with a lifting door in a sliding manner and a base, a grinding mechanism is arranged on the center of the top of the box body, the left side wall and the right side wall of the box body are provided with an air flow guide pipe and a cleaning pipe, a sweeps pipe is arranged on the base, a dust suction opening and a dust outlet are formed in the sweeps pipe, an air outlet pipeline is arranged on the air flow guide pipe, the air outlet pipe is connected with a vacuum pump, a water inlet pipe and a water outlet pipe are arranged on the cleaning pipe, a first sliding block and a first spring are arranged in the cleaning pipe, a second communication opening is provided with a clamping block, a first sliding base is arranged on the center of the bottom of the base, a floating block is in sliding connection into the first sliding base vertically, and the bottom of the floating block is connected with a first sliding base through a second spring; and a power mechanism and a driven gear arearranged in the box body. The car accessory grinding tool is low in noise during work.

The invention relates to the field of clamping equipment, and particularly discloses a manual positioning and clamping device. The manual positioning and clamping device comprises a workbench, a cam handle, a first connecting rod, second connecting rods, sliding blocks, floating blocks and clamping jaws. The first connecting rod moves in the first horizontal direction by rotating the cam handle, the second connecting rods are driven to rotate relative to the first connecting rod and the corresponding sliding blocks, and then the second connecting rods are used for pushing the corresponding sliding blocks to move in the second horizontal direction. Then, the sliding blocks drive the corresponding floating blocks to rotate, the corresponding clamping jaws rotate around hinged shafts of the clamping jaws, and therefore the second ends of the two clamping jaws get close to each other or get away from each other so as to clamp or loosen a workpiece located on a cover plate. The manual positioning and clamping device is simple in structure, after the workpiece is placed on the workbench, the workpiece can be clamped and loosened through the clamping jaws only by rotating the cam handle to drive the first connecting rod, the second connecting rods, the sliding blocks and the floating blocks to act, the clamping mode is simple, operation is fast, and the clamping efficiency is improved.

The invention provides a fixture for repeatedly turning and repairing an external thread by using a horizontal lathe simply, safely and precisely and a clamping method thereof. A poking disc fixture consists of four ejecting bolts and a U-shaped groove; a poking disc tool is fixed on a workpiece through the four ejecting bolts; the workpiece is supported by lathe head and lathe tail tips in the workpiece clamping; and the poking disc tool is connected to one clamping jaw of the lathe for transferring a torque through the U-shaped groove. After a thread of the workpiece is roughly machined, a horizontal turning chuck is locked to link with a tool post; and the workpiece and the poking disc fixture are dismounted from equipment for premounting. When the workpiece is horizontally turned again, the workpiece is also fixed by the horizontal turning lathe head and lathe tail tips; and the clamping jaw used in the first clamping process is adjusted to enter the U-shaped groove of the poking disc tool to finish the second clamping process; and the second fitting of the thread can be directly performed without alignment for a workpiece thread machining initial angle after clamping.

The invention discloses an ampoule bottle grabbing device for a liquid medicine dispensing machine. The ampoule bottle grabbing device includes a ball screw linear driver, a connecting arm is arrangedat the output end of the ball screw linear driver, a clamp sleeve is fixed to the lower end surface of the side, away from the ball screw linear driver, of the connecting arm, the lower end of the clamp sleeve is elastically provided with an ampoule bottle in a clamped manner, and the minimum diameter of the clamp sleeve is smaller than the minimum diameter of the ampoule bottle. According to theampoule bottle grabbing device, the ball screw linear driver works by driving the clamp sleeve to move downwards through the connecting arm, the buckle end of the clamp sleeve is clamped in from a bottle cap end on the ampoule bottle, an elastic arm of the clamp sleeve stops when operating to the minimum bottleneck of the ampoule bottle, and the ampoule bottle is clamped by the elastic arm; and the clamping way is simple, the ampoule bottle cannot be damaged by mechanical clamping, the clamping safety is improved, the dispensing cost is lowered, the ampoule bottle grabbing device is suitablefor ampoule bottles with different diameters, and the application range is wide.

The invention discloses a flexible fixture for surface milling and drilling of a fan bracket and a clamping and positioning method. The flexible fixture comprises a bottom plate, and the bottom plate is provided with a first positioning pressing block assembly capable of moving in the X direction, a second positioning pressing block assembly capable of being adjusted in the Y direction, a third positioning pressing block assembly capable of being adjusted in the X direction and the Y direction respectively, and at least three height-adjustable support positioning pin assemblies. The first positioning pressing block assembly is used for actively positioning and clamping a positioning point on the first side face of the fan bracket, the second positioning pressing block assembly is used for passively positioning and clamping two positioning points on the second side face of the fan bracket, and the third positioning pressing block assembly is used for pre-tightening, positioning and clamping a positioning point on the third side face of the fan bracket. When the flexible fixture is used for surface milling and datum hole drilling of fan bracket products, quick clamping switching of machining of different types of products can be achieved, the manufacturing number of fixtures in the product sample stage is reduced, the sample development period is shortened, and the development cost before product shaping and mass production is reduced.

The invention belongs to the field of medical apparatus, and discloses an self-adaptive clamping device for an irregular object. The self-adaptive clamping device includes a positioning platform, anda flexible clamping mechanism, the flexible clamping mechanism comprises a flexible fixture bracket and a plurality of flexible fixtures connected in parallel, each flexible fixture comprises a springmounting rod, a spring and a pressing disc, and one end of each spring mounting rod is movably mounted in the flexible fixture bracket; and the other end of each spring mounting rod is hinged to thecorresponding disc so that the corresponding pressing disc can swing around the hinge center, and the springs are externally arranged on the spring mounting rods in a sleeving mode and placed betweenthe flexible fixture bracket and the pressing discs so that the springs generate the self-adaptive pressure to the flexible fixture bracket and a hinging rotating shaft when the spring mounting rods move in the flexible fixture bracket. The self-adaptive clamping device further includes a position adjusting mechanism and a cutting mechanism except the flexible clamping mechanism and aims to solvethe technical problems that large elastic deformation or even yield deformation and invalid clamping are easily produced during clamping of the irregular object, especially, the elastic textures.

The invention belongs to the technical field of optical fabrication and provides a clamp controlling non-rotational symmetry errors for optical elements during polishing. The clamp aims to solve the problems that the polishing difficulty is high and the machining convergence efficiency is low in the prior art and comprises a clamping shaft sleeve, locking screws A, a one-dimensional translation table and a fixed base; the clamping shaft sleeve is fixed to the upper installation surface of the one-dimensional translation table, and the lower installation surface of the one-dimensional translation table is fixedly connected to the fixed base; the clamping shaft sleeve is coaxial with the fixed base, is of a flexible structure and is locked by the locking screws A. According to the invention, through monitoring to the magnitude and the directions of the non-rotational symmetry errors in the machining process, the offset of the optical elements can be adjusted in the directions of the errors correspondingly, the non-rotational symmetry errors can be corrected, and the machining efficiency can be improved. Through the simple, accurate and reliable clamping mode, the non-rotational symmetry errors of the optical elements in the classical polishing process can be effectively controlled.

The invention discloses a bottle feeding device of an aqueous solution dispensing machine. The bottle feeding device comprises an equipment base, wherein a rotary bottle feeding mechanism for conveying ampoule bottles, a grabbing mechanism for grabbing the ampoule bottles in the rotary bottle feeding mechanism and conveying the ampoule bottles, and a rotary disc for clamping the ampoule bottles onthe grabbing mechanism and rotatably conveying the ampoule bottles are arranged on the equipment base. The ampoule bottles are spirally sorted and intermittently shielded, so that more ampoule bottles are accommodated in a narrow space, and therefore, automatic sorting and low-cost feeding are realized; a baffle plate is convenient for righting the ampoule bottles, so that the ampoule bottles areconveniently grabbed and crushed; the ampoule bottles are elastically clamped by a connecting arm, so that the ampoule bottles are not damaged due to mechanical clamping, and therefore, the dispensing cost is reduced, and the bottle feeding device is suitable for ampoule bottles of different diameters; a ball screw linear driver can control any needed position of the ampoule bottles in a stroke,and follow-up station changes are not needed, so that the structure of a follow-up station can be simplified; and the rotary disc is adopted for feeding, so that feeding continuity is guaranteed, andintegral streamlined feeding is realized.

The invention discloses a heart valve positioning device which comprises anchoring units, and the number of the anchoring units is not smaller than the number of valves at a target installation position. The plurality of anchoring units are distributed along the circumference and are connected with one another through axially extending connecting parts to form a closed hollow thin-wall structure; each anchoring unit comprises an upper component and a lower component, the two ends of the upper component and the two ends of the lower component are fixedly connected with the connecting parts respectively, and two connecting points on the same side of each connecting part are distributed at intervals; the upper component and the lower component are arranged at intervals in the axis direction of the hollow thin-wall structure, at least one first interval is formed between the upper component and the lower component, and the first interval is used for clamping a heart native valve. The clamping force of the native valve between the upper component and the lower component can be adjusted by controlling the distance of the gap between the upper component and the lower component; the clamping mode of the original valve leaflet is simplified, and the design complexity and the machining difficulty are reduced.

The invention discloses an underwater plant quadrat collecting device which comprises a submerged frame, the submerged frame is connected with a hanging wire, the submerged frame comprises a side wall frame body, a bottom plate, a partition plate and a push rod, the side wall frame body is a vertically-through surrounding frame, a vertically-through sampling groove is formed in the position, corresponding to a sampling and cutting area, of the bottom plate, a magnet is fixed to the right side face of the sampling and cutting area, the push rod horizontally penetrates through the partition plate, so that the left end of the push rod is located in the elastic pushing area and the right end of the push rod is located in the mining and cutting area, a head plate is installed at the left end of the push rod, a ferromagnetic plate is installed at the right end of the push rod, a spring is further installed on the push rod, and an operable buckle is arranged in the elastic pushing area and can clamp the head plate, a mounting rack is fixedly arranged over thesubmerged frame, and a waterproof camera and a water pump are mounted on the mounting rack. The underwater plant quadrat collecting device can directly sink into the water bottom, carries out underwater plant quadrat sampling at the water bottom, and is simple in structure and convenient to use.

The invention discloses a glass die mouth die thread milling clamp. The glass die mouth die thread milling clamp comprises a mouth die, a plug gauge, a pressing plate, a clamp body and an eccentric shaft. The plug gauge is in threaded connection with the mouth die. The pressing plate penetrates through the plug gauge and is placed in a mouth ring of an inner cavity of the mouth die. The lower end of the pressing plate is in threaded connection with a puller in the clamp body. The eccentric shaft penetrates through the clamp body and the puller. The clamp body is installed on a machine tool rotation indexing table, the eccentric shaft is installed and locked, the plug gauge is installed in the clamp body and screwed, a half-piece mouth die to be machined abuts against the plug gauge, the eccentric shaft is adjusted to be in a loosening state, the pressing plate is rotated and is pressed on the mouth die, the other half-piece mouth die abuts against the plug gauge, the whole mouth die is assembled into a whole, a machined thread cutter is installed on a cutter handle, the whole mouth die is arranged on the outer side of the plug gauge in a sleeving mode, a circular hoop locking mouth die is installed on the outer side of the mouth die, and the eccentric shaft is rotated to lock the mouth die. The accessories of the clamp are easy to machine, practicability is high, the high-low staggering phenomenon of threads is avoided, the machining time is shortened, and the working intensity of workers is relieved.