6 results about "Irregular teeth" patented technology

The utility model provides a handheld double-water-tank oral irrigator, which relates to the technical field of oral cavity cleaning and comprises a nozzle, a nozzle connector is sleeved in the nozzle, an upper cover transparent part is sleeved on the outer surface of the nozzle connector, and a nozzle electroplating part is fixedly mounted at the bottom end of the nozzle connector. By arranging the nozzle, the nozzle interface, the upper cover transparent part, the nozzle electroplating part, the top cover, the nozzle buckle, the USB, the USB plug, the USB bracket, the USB pad, the battery, the UV lamp bracket and the like, the problem that the nozzle and the machine body cannot be bent is solved, the wrist does not need to be excessively twisted or the posture of the head does not need to be changed in the using process of the equipment, and the use is convenient. According to the technical scheme, difficulty and discomfort of a user in operation are avoided, meanwhile, for some users with special oral cavity structures or irregular tooth arrangement, the device can adapt to unique conditions of the oral cavity, cleaning dead corners are avoided, food residues and dental plaque are effectively removed, and convenience, comfort and reasonability of the device are improved.

The invention belongs to the field of hard rock cutting pick production equipment, and relates to a vacuum welding device for hard rock cutting pick production and a welding technology, and the vacuum welding device comprises a welding equipment main body used for welding a hard rock cutting pick; the moving unit is used for driving the tooth part of the hard rock cutting tooth to be in butt joint with the column part; the adapting unit is used for clamping and adapting to the concave-convex shape of the tooth surface of the hard rock cutting tooth; the preheating unit is used for performing rotary friction preheating on the tooth part and the column part of the hard rock cutting tooth fixed by the adaptive unit before welding and performing smooth treatment on the tooth part and the column part of the hard rock cutting tooth after welding, so that the adaptive flexible holding of the hard rock cutting tooth with a complex irregular tooth surface is realized through the adaptive unit; according to the positioning device, the positioning pins can be independently buffered and finely adjusted according to the tooth surface morphology, so that surface damage or microscopic crack initiation of a workpiece caused by stress concentration is effectively avoided while global uniform pressure application and extremely high clamping stability are ensured, and a crucial basic condition is provided for subsequent high-precision welding.

The utility model provides a shape-limiting tooling for a gear part with an internal tooth structure, which can solve the problems that the existing tooling ignores the deformation of the outer circle of the gear, fails to solve the deformation caused by the irregular root structure, and fails to fully consider the influence on the cooling environment of the internal teeth. The tooling comprises a cylindrical support seat and a cylindrical spindle, an annular boss is arranged at the lower end of the inner wall of the support seat, M annular grooves are opened on the inner wall above the annular boss along the circumferential direction from top to bottom, and N straight grooves are opened axially from top to bottom in the circumferential direction, M×N first protrusions and N second protrusions are formed between the annular grooves and the straight grooves, M≥2, N≥6, both are integers, the upper end face of each second protrusion is used to abut against the lower end face of the gear part, the inner wall surface of the first protrusion is defined as the inner diameter D of the support seat and the outer diameter of the gear part is defined as D1, D-D1=0.2mm~0.5mm, the depth of the annular groove is the same as the depth of the straight groove, a spiral groove is opened on the outer wall of the spindle along the axial direction, the outer diameter of the spindle is defined as D2, the inner diameter of the tooth top circle of the inner teeth of the gear part is defined as D3, then D3-D2=0.1mm~0.5mm.

The invention discloses a deburring and polishing device and method for the edge of a special-shaped tooth groove of a rotating part, and belongs to the technical field of deburring and polishing. The bearing movement unit is mounted on the basic frame unit and is used for clamping a workpiece and driving the workpiece to perform rotary and inclined multi-axis movement; the machining execution unit is mounted on the basic frame unit and comprises a first polishing execution unit and a second polishing execution unit which are symmetrically arranged relative to the workpiece machining station on the bearing movement unit; the first polishing execution unit and the second polishing execution unit drive the tail end polishers to move on multiple spatial degrees of freedom so as to adjust the poses of the tail end polishers relative to the upper surface and the lower surface of the workpiece, and therefore the edges of the special-shaped tooth grooves in the upper end face and the lower end face of the workpiece are synchronously polished. The requirement for automatic polishing of a special-shaped tooth groove edge complex structure is met, and the stability, continuity and machining quality of the machining process are improved.

According to the medium-high cobalt gradient hard alloy material provided by the invention, a gradient structure is formed in situ by calcining raw materials, the surface layer part of the gradient hard alloy material does not contain a brittle Ti cubic phase and a Zr-containing cubic phase, the gradient hard alloy material has high toughness, the subsurface layer part contains the Ti-containing cubic phase, the interior contains the Ti-containing cubic phase and the Zr-containing cubic phase, and the hardness and the plastic deformation resistance are high; and the plastic deformation requirement and the hardness requirement of the dental bur under the contact collision action with high-hardness enamel on the surface of irregular teeth in the use process can be met.

This invention discloses a layered, self-adjusting bionic tooth clamping device, specifically designed to address irregular tooth shapes. The device comprises four parts: a rotating base module, a layered support module, a double-slide module, and a self-adjusting clamping module. Through clamping force, the layered support module, double-slide module, and self-adjusting clamping module automatically adapt to the irregular shape of the tooth, ensuring a tight fit and providing a stable fixation effect. The clamping and fixing base provides robust support, ensuring the stability and reliability of the device during use. This device is simple in design, easy to install and adjust, and can significantly improve the accuracy and stability of tooth fixation.