134results about How to "Accurate cut" patented technology

The invention relates to a method for the production of a multilayer electrostatic lens arrangement with at least one lens electrode in general, a method for the production of a phase plate in particular as well as the lens arrangement, the phase plate and a transmission electron microscope with the phase plate.

The lens arrangement or the phase plate is produced from a thin self-supporting silicon nitride membrane which is fixed in a macroscopic chip with deposition of further layers. beam.

The central bore as well as the aperture opening are milled out by means of an ion

This multi-bladed scalpel addresses the problem of making many small incisions in very close proximity to each other, to facilitate hair transplantation. With this device, it is possible to make multiple incisions in such proximity. With the blades mounted parallel to each other, at the desired spacing, each incision does not intersect neighboring incisions, so the follicles placed in each incision will be surrounded by the maximum amount of undisturbed tissue to promote revascularization—capillary growth to provide a blood supply to each transplanted follicle. CNC machining techniques are used to create the blade holders with blade mounting sites created at the desired proximity. Medical grade epoxy is used to mount the blades, which are mounted parallel to each other. Blade mounting holes are drilled so the tips of the blade group form a planar array of interdigitated and offset blades at an angle with respect to the handle.

The invention discloses a triggering device and a triggering control method for a thyristor valve block of a high-voltage TSC (thyristor switched capacitor), and belongs to the field of electric system controllers. With the triggering device and the triggering control method, the problems of complex structures of existing triggering devices and complexity of existing triggering control methods are solved. A control unit is connected with the triggering device. The triggering control method includes that an external clock circuit is adopted to provide clock signals to a logical processing unit, collected SIN signals are judged to acquire switching time, switching signals are outputted according to the switching time, and the switching signals are converted to optical signals through a light transmission circuit to be outputted to a light receiving circuit after being amplified by a driving circuit; and the light receiving circuit outputs electric pulse signals to an optical-coupling isolation circuit II, and input sides of two optical-coupling isolation circuits are switched on simultaneously when the electric pulse signals are of low levels, so that two triggering signals are outputted by two triggering units to gate poles of the thyristor valve block of the high-voltage TSC simultaneously. The triggering device and the triggering control method are applicable to electric systems and industrial systems.

The invention relates to the field of unmanned aerial vehicles, and discloses an unmanned aerial vehicle guidance method, an unmanned aerial vehicle and a storage medium. The method comprises: obtaining target trajectory route acquiring; if the curvature of the target track route is not equal to that of the current track route, determining a turning point according to the current track route and the target track route; acquiring a turning preparation distance and a real-time distance of the unmanned aerial vehicle; when the real-time distance is smaller than or equal to the turning preparationdistance, obtaining the flight direction and guidance law model of the unmanned aerial vehicle according to the target trajectory route, and controlling the unmanned aerial vehicle to fly; calculating a turning preparation distance according to the current flight state of the unmanned aerial vehicle. Therefore, when the unmanned aerial vehicle enters the turning preparation distance, the flight direction and the guidance law model are switched in time to control the flight of the unmanned aerial vehicle, so as to ensure that the unmanned aerial vehicle accurately cuts into the target trajectory route at the turning point, and then the unmanned aerial vehicle flies on the target trajectory route, thereby improving the tracking precision of the unmanned aerial vehicle on the target trajectory route.

The invention discloses a cable cutting device for a flexible cable net of a cable antenna. The cable cutting device is provided with a base; two guiding rail bases are fixed on the left side and the right side of the base through threads correspondingly; and first connecting guiding rails are fixed on the two guiding rail bases correspondingly. A force measuring device is installed at one end of the base. A tension adjusting device is installed on the other end of the base. A sliding table cable pressing device is slidably connected with the first connecting guiding rails arranged on the other end of the base; and a sliding table cable cutting mechanism is slidably connected with the first connecting guiding rails and located between the force measuring device and the sliding table cable pressing device. A sliding block expansion displacement sensor is arranged on the base. According to the cable cutting device for the flexible cable net of the cable antenna, the machining errors of a cable of the cable antenna are effectively reduced, and the working tension which the cable needs can be accurately controlled when the cable is tensioned; the stress on the cable is not affected by the operations of the sliding table cable cutting mechanism when a connector arranged on the other end of the cable is manufactured; and the lengths of needed cables can be precisely controlled through a sliding table cable cutting female table and a sliding table cable cutting table.

Disclosed is a submarine pipeline cutting robot. The submarine pipeline cutting robot is mainly used for cutting treatment of submarine damaged pipelines. The submarine pipeline cutting robot is composed of an operation carrier body, a pushing device, a cutting device and a clamping device. The carrier body comprises a carrier frame, a buoyancy block, a propeller, a five-degree-of-freedom manipulator, a lighting lamp, a camera pan-tilt and a hydraulic device. A pushing mechanism is connected to the carrier frame through a hydraulic cylinder and can slide along a rail on the frame. A set of cutting mechanism is arranged above the pushing device and can slide along a rail on the pushing device, so that the cutting purpose is achieved. The manipulator is located in the center of the pushing device. A manipulator base is connected with the pushing device through the hydraulic device. A manipulator clamp hand is connected with the pushing device through pin nails. The state of the manipulator is controlled through combined action of the hydraulic device, so that the purpose of holding the pipelines is achieved. According to the submarine pipeline cutting robot, the submarine pipelines which are located within 1000 meters of the underwater depth and have the size no more than 500 millimeters can be cut.

The invention provides a method for forging a bearing ring, and relates to the field of manufacturing of mechanical metal, in particular to a technology for bearing forging production. The method comprises the steps of material preparation: blanking 600g of each section of a round steel long bar; forging forming: heating the material section by a heating furnace, hammering the material section by high-speed hammering equipment, automatically conveying a hammered blank while cooling, performing spraying cooling to remove a thin oxide layer generated on a semi-finished ball track under high temperature in time, then performing cutting and final annealing, and performing forging on press machine equipment; treatment after forging: removing waste products and repairing reprocessed products by detection; jacking: performing combined cutting in a punching hole to obtain a coarse bearing ring blank. In the forging process, precise temperature control is adopted, so that the manufactured ring is extremely high in intensity, and a finally manufactured bearing is anti-abrasion and long in service; meanwhile, the oxide layer can be removed in time in the forging process, and cutting can be precisely carried out.

The invention relates to a plain glass cutting auxiliary processing device. The plain glass cutting auxiliary processing device comprises a bottom plate, a pushing device, a rotating receiving device,and a waste material collecting device; the pushing device is fixedly arranged on the left end of the bottom plate; a support plate is arranged on the right end of the bottom plate; the rotating receiving device is arranged on the support plate; and the waste material collecting device is arranged on the bottom plate. The plain glass cutting auxiliary processing device is capable of solving difficult problems in the prior art in plain glass cutting process: 1, in artificial cutting of glass, displacement is easily caused, cutting precision is not high, and operators are easily damaged by cutting glass waste materials; 2, in glass cutting process using conventional machines, cutting precision is not high, glass cutting quality is influenced, in time collecting of cut off glass and recycling of cut off glass are impossible to realize. The plain glass cutting auxiliary processing device is capable of realizing intelligent plain glass cutting, is excellent in cutting effect, and high in working efficiency.

The invention discloses a multifunctional puncture instrument, which includes a bracket and a positioning device. The positioning device includes: two arc-shaped rails, a positioning rod and a puncture needle frame, wherein the two ends of the positioning rod are respectively movably connected to the The two arc-shaped rails are connected, the puncture needle holder is connected with a puncture needle holder installation seat, and the puncture needle holder installation seat is connected with the positioning rod through a connecting arm. The present invention realizes arbitrary directional adjustment of the puncture needle through the connection mode between the connecting arm, the spherical joint and the puncture needle holder mounting seat, so that the optimal path from the puncture point to the lesion target can be determined through simple operations. And accurately cut the puncture needle into the target point.

The invention discloses a floating double-shaft shoulder friction stir welding tool and a method for space welding. The tool comprises a stirring head and a sleeve; at least two rolling bearings are arranged on a connecting shaft of the stirring head; each rolling bearing is connected with the connecting shaft of the stirring head through a locking bolt; U-shaped grooves in clearance fit connection with the rolling bearings are axially formed in the side wall of the sleeve; the length L2 of the U-shaped grooves is larger than the positioning distance L1 of the rolling bearings; an adjusting bolt in threaded connection with the connecting shaft of the stirring head is inserted in the top center of the sleeve; the adjusting bolt is sleeved with a first limiting spring and a second limiting spring; the first limiting spring is positioned in the sleeve; the second limiting spring is positioned out of the sleeve; and the adjusting bolt is screwed to change relative positions of the connecting shaft of the stirring head and the sleeve so as to realize adjustment of the pressing degree of the first limiting spring and the second limiting spring. The tool is simple and reliable in structure, easy to manufacture and excellent in use effect, and can effectively realize floating welding and space all-position welding.

The invention relates to a method for carrying out 10kV charged wire connecting operation by a CO2 laser cable peeling device. The CO2 laser cable peeling device is suspended on a live wire; H-shaped notches are cut out at two sides of the live wire respectively; the H-shaped notches at two sides are accurately butted and then form two annular notches at two sides and two coherent longitudinal notches between the two annular notches on the live wire; a cut insulating sheath is peeled off from the live wire; one end of a drainage wire is locked by a lock bar; the drainage wire is sent to a live wire connection position; a round mouth screw type drainage wire clamp is suspended on the live wire with a drainage wire clamp operating rod; a bolt is tightened; and the drainage wire clamp and the wire are tightly fixed. Online peeling is carried out on the live wire by the CO2 laser cable peeling device; a metal cable core is not damaged; the peeling efficiency is high; the notches are accurate; and the reliability of 10kV charged wire connection is greatly improved.

The invention discloses a wheat straw preprocessing cutting device. The device comprises a connection support, a straw sliding barrel is welded to the upper end of the connection support, an opening is formed in one end of the straw sliding barrel and connected with a through hole, corresponding to the opening of the straw sliding barrel, of one side of the connection support, and a third electricretractable rod is connected to the right end in the straw sliding barrel through bolTS; a push plate can be driven to move through the third electric retractable rod, wheat straw can be pushed out of the opening of the straw sliding barrel through the push plate, a cutting blade can be driven to move up and down through a first electric retractable rod, the cutting sheet can be driven to rotatethrough a second motor, and accordingly the wheat straw is cut more conveniently; an adjustment baffle can be driven to move left and right through a second electric retractable rod, and the cutting length can be adjusted through the adjustment baffle. The wheat straw preprocessing cutting device is simple in structure and convenient to operate, cutting is more accurate, convenience is provided for people, and a large amount of labor is saved.

The invention discloses a single aluminum-shell battery encapsulating apparatus. The single aluminum-shell battery encapsulating apparatus comprises a bottom plate, an adhesive-passing roller and a film bracket; the adhesive-passing roller and the film bracket are arranged at one end of the bottom plate, and a film is arranged on the film bracket; a positioning plate and a feeding groove are arranged in the middle position of the bottom plate; the positioning plate is L-shaped, wherein a long plate of the positioning plate is fixedly arranged along one side edge of the bottom plate; a short plate of the positioning plate is parallel to the feeding groove, wherein a certain distance is formed between the bottom of the short plate of the positioning plate and the bottom plate; and the feeding groove is formed in a direction perpendicular to an adhesive tape conveying direction. The single aluminum-shell battery encapsulating apparatus is simple in structure, low in cost, low in requirement on an operator, and capable of accurately completing positioning of the adhesive tape and the surface of a battery, accurately cutting the adhesive tape with the required length, avoiding waste of material and realizing efficient continuous operation, and simple in steps, high in efficiency, and capable of greatly improving encapsulating consistency and avoiding the problems of shell contact, poor subsequent welding and the like caused by encapsulating offset.

The invention discloses a texture-based interactive mesh model cutting method and device and modeling device. The method comprises the following steps: according to the correspondence between the surface mesh of the reconstructed object three-dimensional model and the texture image, projecting the mesh triangle in the surface mesh onto the texture image to obtain the texture triangle set formed bythe texture triangle in the texture image; selecting a polygon region containing only the background on the projected texture image; traversing all the texture triangles in the set of texture triangles, and filtering out the texture triangles that fall in the polygon region and intersect with the edges of the polygon region; removing a mesh triangle corresponding to a texture triangle falling ina polygon region; splitting a texture triangle intersecting with the edge of the polygon region and a corresponding surface mesh triangle, and deleting the splitting triangle in the surface mesh corresponding to the texture triangle falling in the polygon region; building a new surface mesh of a newly-built object three-dimensional model.

The invention discloses a traditional Chinese medicine short text multi-classification method based on an LD and ANN-SoftMax Regressor. The method is mainly based on constructed text label data labeled by an artificial entity to process data on the traditional Chinese medicine short text data. Firstly, a jaeba word segmentation tool is adopted for word segmentation, and then a Bag-of-Words model is adopted for processing. A symptom synonym dictionary is established in an LD mode to perform dimension reduction processing on text onehot vectorization representation after word bag construction byutilizing SVD and PCA, and then ANN-SoftMax Regressor multi-classification training is performed to finally obtain the traditional Chinese medicine short text multi-classification method. The methodis suitable for the field of traditional Chinese medicine and short text classification, and can effectively enable fuzzy symptom classification of diseases to be more accurate.

The invention discloses an electric rotary-cutting safe scalpel. The scalpel comprises a handle and a scalpel head at the front end of the handle, and the scalpel head comprises a circular blade (11) and a protective cover (15); the circular blade (11) is fixed to one end of a rotation shaft (13) through a fastening bolt (12), the other end of the rotation shaft (13) is connected with an output shaft (30a) of a motor (30), and the motor (30) is arranged in a containing cavity (20) of the handle; the protective cover (15) is arranged at the front end of the containing cavity (20) and covers the circular blade (11). The electric rotary-cutting safe scalpel is convenient to use, an operator only needs to place the scalpel edge onto the surface of tissue to be cut and can accurately and rapidly cut the tissue, and the effects are achieve that that the cut size is precisely controlled and smooth and neat incisions are cut; the electric rotary-cutting safe scalpel obviously improves the surgical efficiency and surgical quality, is more ingenious than an ordinary scalpel, is easier and safer to operate, and greatly reduces the psychological burdens of doctors and patients.

The invention relates to high-speed backboard connector backboard assembling equipment and an assembling process. The high-speed backboard connector backboard assembling equipment comprises a bottom plate, a feeding and discharging mechanism, a moving mechanism, a material roll, a feeding mechanism, a cutting mechanism, a carrying mechanism and an assembling mechanism. By using the high-speed backboard connector backboard assembling equipment and the assembling process, through cooperation of the feeding and discharging mechanism and the moving mechanism, rapid feeding and discharging of products can be achieved, and an occupied space is small; through cooperation of the feeding mechanism and the cutting mechanism, accurate feeding and rapid cutting of a material belt can be achieved, cutting precision is high, and quality of material sheets is good; through the carrying mechanism, accurate assembling of the material sheet and a plastic shell can be achieved, and the material sheet canbe prevented from being separated from the plastic shell through pre-pressing; and through the assembling mechanism, the material sheet and the plastic shell can be fixed together, two sides of thematerial sheet can be pressed downwards, and edge warping is prevented.