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8results about How to "High reset accuracy" patented technology
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Bone squeezer
ActiveCN224140915Ueasy to operateeasy to observeOsteosynthesis devicesMechanical engineeringMedical device
The utility model relates to the technical field of medical instruments, and discloses a bone squeezer which comprises a fixing mechanism and a tilting mechanism, the tilting mechanism is arranged on the fixing mechanism, the fixing mechanism comprises a fixing seat, a fixing column is fixedly installed at the front end of the top of the fixing seat, a frame shaped like a Chinese character'hui 'is fixedly installed at the top of the fixing column, and the fixing seat is fixedly connected with the fixing column. An opening is formed in the rear end of the concentric-square-shaped frame, the warping and shifting mechanism comprises supporting rods fixedly installed at the left end and the right end of the fixing base, the surface of each supporting rod is slidably connected with two sliding blocks, and elastic nuts are connected between the outer walls of the left sides of the sliding blocks and the supporting rods in a threaded mode. According to the bone squeezer, accurate turning and shifting assistance for bone restoration can be achieved, the position of the turning and shifting head can be accurately adjusted by adjusting the position of the sliding block on the supporting rod and fixing the sliding block through the elastic nut so as to meet different bone restoration requirements, and operation flexibility is enhanced.
Owner:LUOYANG MENGJIN DISTRICT TRADITIONAL CHINESE MEDICINE HOSPITAL
A sensing spring adjustment mechanism for mask loading
PendingCN122085614AReduce the risk of large deformationsAvoid the problem of leaving the default installation card slotPhotomechanical exposure apparatusMicrolithography exposure apparatusTorsion springSemiconductor
This invention discloses a sensing spring adjustment mechanism for mask mounting, belonging to the field of semiconductor lithography equipment technology. It includes a mounting base, a rotating shaft rotatably mounted on the mounting base, and a detection lever fixedly connected to the rotating shaft. Double torsion springs are sleeved at both ends of the rotating shaft, with the middle connecting end of the double torsion spring abutting against the bottom of the mounting base. A translational limiting mechanism is provided at the bottom of the mounting base, cooperating with the connecting end of the double torsion spring to guide and radially limit the movement of the connecting end. This invention uses double torsion springs instead of the traditional single-sided spring structure, providing a more balanced and stable reset force for the detection lever, ensuring the consistency and accuracy of the detection lever's reset action. Simultaneously, the double-sided support structure significantly reduces the risk of large deformation of the spring due to external force interference, fundamentally avoiding the problem of the spring detaching from the preset mounting slot.
Owner:SHENZHEN POLYTECHNIC
A sheet material support device for a mold
ActiveCN224614916Uavoid fatigue failureReliable reset
This utility model provides a sheet metal supporting device for molds, comprising a support plate, a support plate connecting seat, a counterweight, and a magnetic attraction assembly. The support plate connecting seat is vertically fixed on a punch seat. The support plate is rotatably connected to the support plate connecting seat. The support plate has a supporting surface that can extend horizontally from the front side of the support plate connecting seat or retract as the support plate rotates. The counterweight is fixedly connected to the end of the support plate away from the supporting surface and is located on the rear side of the support plate connecting seat. The counterweight has an abutment surface that can contact the rear side of the support plate connecting seat. The abutment surface has a first groove recessed into the counterweight, and the bottom of the first groove has a threaded hole penetrating the counterweight. The magnetic attraction assembly includes a magnet and an adjusting screw. The magnet is movably disposed in the first groove, and the adjusting screw is threadedly connected to the threaded hole, with one end fixedly connected to the magnet. This utility model overcomes the problems of unreliable reset, inconvenient adjustment, and poor versatility of traditional mold sheet metal supporting devices.
Owner:TAILIN MOULD (GUANGDONG) CO LTD
Mechanical limiting and oil cylinder cooperative driving mechanism for inner extraction of two-color injection mold top side
This invention discloses a mechanical limiting and hydraulic cylinder coordinated driving mechanism for the inner pull-out mechanism on the top side of a two-color injection mold, relating to the field of two-color injection mold technology. The mechanism includes an inner pull-out shovel base and a limiting drive rod fixed to the fixed mold side, and a hydraulic cylinder, an inner pull-out steering block, an inner pull-out main body, and a limiting slider disposed on the moving mold side. The limiting slider has a limiting groove, and the limiting drive rod has an inclined portion that cooperates with it. The inner pull-out steering block has a limiting hole, and the limiting slider can be inserted into or removed from the limiting hole under the action of an elastic element. During mold opening, the limiting drive rod separates from the limiting groove, and the elastic element drives the limiting slider to lock the inner pull-out steering block, preventing it from falling. During mold closing, the limiting drive rod drives the limiting slider to unlock via the inclined surface, and then the inner pull-out shovel base precisely resets the inner pull-out steering block. This invention, through a purely mechanical limiting structure, eliminates the risk of the top side slider falling during power switching, improves reset accuracy, eliminates the auxiliary hydraulic cylinder, simplifies the mold structure, and reduces costs.
Owner:HAILA PRECISION MOLD (CHANGCHUN) CO LTD
A planning and navigation system for lower limb fracture reduction surgery
ActiveCN115546450Breduce harmsave energyImage enhancementImage analysisFracture reductionImage manipulation
The application discloses a planning navigation system for lower limb fracture reduction surgery. The system comprises a medical image processing module for segmenting a proximal bone and a distal bone from a lower limb fracture image and reconstructing a three-dimensional surface model of a broken bone; a surgery planning module for point cloud sampling on the three-dimensional surface model of the broken bone to obtain a corresponding point cloud model; extracting a fracture section from the point cloud model; obtaining a coordinate transformation matrix of an initial position of the distal bone and a target position of the distal bone after reduction by point cloud registration on the fracture section; performing fracture reduction path planning based on the coordinate transformation matrix, the fracture reduction path planning being used for guiding translation and rotation of the distal bone to obtain the target position of the distal bone under the condition that the proximal bone is fixed; and a navigation module for visually displaying a surgery process based on the fracture reduction path planning. The application can improve reduction accuracy, reduce reduction force and reduce soft tissue damage such as muscle damage at a fracture of a patient.
Owner:SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
Overall resetting method for large flexible steel structure
PendingCN121952350AHigh reset accuracyImprove construction safetyBuilding repairsControl engineeringControl theory
Owner:CITIC HEAVY IND EQUIP MFG (ZHANGZHOU CO LTD
Cam resetting device
The utility model discloses a cam resetting device, which relates to the technical field of steering systems and comprises a driving motor, a first gear, a second gear, a first transmission shaft, a cam and an ejector rob, the first gear is arranged on an output shaft of the driving motor, the second gear is connected onto the first transmission shaft through a one-way bearing, and the cam is arranged on the first transmission shaft. The first gear is in meshed connection with the second gear; the first end of the first transmission shaft is in transmission connection with the cam through a first transmission mechanism, the ejector rod abuts against the cam, and the cam can push the ejector rod to move so as to drive front wheels of the robot trolley to steer. The second end of the first transmission shaft can be in transmission connection with a driving wheel through a second transmission mechanism so as to drive the driving wheel to rotate, and the cam can be connected with the driving wheel through the second transmission shaft. The reset device can reduce the reset difficulty and improve the reset precision.
Owner:彭城 +2
Door lock device of oven
ActiveCN224173872UImprove stabilityHigh reset accuracyBuilding braking devicesBuilding locksMechanical engineeringAnchor point
The utility model discloses a door lock device of an oven. An oven door is hinged to an oven frame. The front end of the pull arm is hinged to the bottom of the box door through a first hinge shaft, and the rear end is provided with a long hole extending in the length direction. Reset springs are hooked on the long holes, and the first reset spring is fixed to a mounting ring at the bottom of the oven frame through a hook; the second reset spring is fixed to the rear side of the oven frame. The included angle alpha formed by the first reset spring and the second reset spring in the free state ranges from 20 degrees to 60 degrees. The mechanical balance in the opening and closing process of the box door is realized through the collaborative layout of the double reset springs and the linkage design of the draw arm long hole. The included angle of 20-60 degrees is formed between the first reset spring and the second reset spring, so that elastic moments are dynamically complemented, reliable locking when the box door is closed is guaranteed, and the door opening operation resistance is reduced. The long hole structure provides an adjustable anchor point for the spring hook, self-adaption to thermal expansion and cold contraction of the box body is achieved, the long-term use stability is improved, meanwhile, the assembly process is simplified, and part abrasion is reduced.
Owner:FOSHAN SHUNDE RUNPEI HARDWARE PRODUCTS CO LTD