8results about How to "Realize self-positioning" patented technology

The invention discloses an inner hole grinding clamp which is used for clamping a plunger sleeve in a plunger sleeve inner hole grinding process or a bypass valve sleeve middle hole grinding process and comprises a base, a base positioning mandrel, a positioning plate, a lining, a flange plate positioning mandrel, a pressing assembly, a flange plate and a balancing weight. The lining is assembled in a center hole of the positioning plate in an interference mode, and the flange plate positioning mandrel is fixedly connected to the middle of the flange plate; the lower part of the base positioning mandrel is fixedly connected with the base; when the positioning plate is placed on the base and matched with the pressing assembly to clamp the plunger sleeve, the middle of the base positioning mandrel is in clearance fit with the lining, and the upper portion of the base positioning mandrel is in clearance fit with an inner hole of the plunger sleeve or in clearance fit with a middle hole of the bypass valve sleeve. When the positioning plate which is matched with the pressing assembly to clamp the plunger sleeve is fixedly connected to the flange plate, the upper portion of the flange plate positioning mandrel is in clearance fit with the lining. By adopting the device, the problem that the special-shaped irregular parts need to be aligned when being ground on the internal grinding machine for multiple times can be solved, and the device is quick to clamp and disassemble.

The invention discloses a three-cavity ultrasonic developing nasal jejunum tube, and relates to the field of nasal jejunum tubes, the three-cavity ultrasonic developing nasal jejunum tube comprises a preset base body, a three-cavity reserved through tube and a disposable nasal jejunum tube body, the upper end of the preset base body is in butt joint with the three-cavity reserved through tube, and the upper end of the disposable nasal jejunum tube body is fixedly connected with a nested butt joint piece; the disposable nasal jejunum tube body is in butt joint with the lower end of the preset base body through the nesting butt joint piece. The nasal jejunum tube for three-cavity ultrasonic development is provided with a self-positioning structure, the corresponding position of the nasal cavity of a patient is subjected to self-positioning treatment through the deformed and expanded external butt-joint air bag piece, and meanwhile, the forming degree of the external butt-joint air bag piece is stably supported through the repulsive force between the internal butt-joint supporting piece with the same magnetic pole and the magnet piece in cooperation with the interior of the external butt-joint air bag piece; basic position positioning processing of the whole device is stably and adaptively carried out, the influence of activity deviation on the placement position of the device during medical operation of a user is avoided, and better medical experience is brought to a patient.

The application discloses a multifunctional anti-degeneration traditional Chinese medicine storage device, the fixed plate, the movable plate and the driving plate are movably connected with anti-degeneration placing assemblies for storing traditional Chinese medicinal materials, the anti-degeneration placing assemblies are provided with multiple groups, respectively, anti-degeneration placing assembly one, anti-degeneration placing assembly two, anti-degeneration placing assembly N, the anti-degeneration placing assembly one, the anti-degeneration placing assembly two, the anti-degeneration placing assembly N are movably connected on the fixed plate, the movable plate and the driving plate from bottom to top. The application belongs to the technical field of traditional Chinese medicine storage, and particularly relates to a multifunctional anti-degeneration traditional Chinese medicine storage device, which can batch store the same medicinal materials, simultaneously dry the same medicinal materials, and store two kinds of medicinal materials which can avoid mutual degeneration in the same place, so that the occurrence of mildew and degeneration of the two kinds of medicinal materials is reduced.

The utility model provides a battery cell module and a battery pack, and relates to the field of new energy automobiles. The battery cell module comprises a battery pack, two end plates and two insulating plates, the battery pack comprises battery cell units and a battery cell frame, and the battery cell units are connected with the battery cell frame; the two end plates are connected with the battery cell frame and are positioned on two sides of the battery cell unit; the two insulating plates respectively correspond to the two end plates, and each insulating plate is positioned between the corresponding end plate and the battery cell unit; each insulating plate is attached to the corresponding battery cell unit and the corresponding end plate; each insulating plate is provided with at least one positioning groove, and the positioning grooves are matched with the battery cell frames. According to the battery cell module, the positioning grooves are formed in the insulating plate, so that the insulating plate can realize self-positioning, the position of the insulating plate is limited when the battery pack and the end plate are assembled, repeated assembly caused by assembly dislocation is avoided, the positioning of the assembly position of the insulating plate is more accurate, and the assembly accuracy and the assembly efficiency of the battery cell module are improved.

The utility model discloses a positioning and clamping device for a double-flat-position through hole connecting piece. The positioning and clamping device comprises an elastic chuck and a pair of elastic plug pin assemblies. The elastic chuck is connected with a clamping driving device of a machine tool, an inserting groove and a pair of mounting holes are formed in the elastic chuck, the axis of the inserting groove coincides with the axis of the elastic chuck, and the two mounting holes are oppositely formed and located in the upper side and the lower side of the inserting groove respectively. Each elastic plug pin assembly is correspondingly arranged in the corresponding installation hole, one end of each elastic plug pin assembly extends into the corresponding insertion groove, and the two elastic plug pin assemblies are matched to form a wedge structure which is used for positioning the through hole of the connecting piece. During clamping, the flat position on one side of the connecting piece is inserted into the insertion groove, self-positioning of the flat position through hole is achieved by means of the characteristics of the spring and the structural design of the wedge, and then the flat position of the connecting piece is clamped through the elastic chuck so as to achieve clamping.

This invention provides a point cloud-based navigation method, system, device, and storage medium for quay crane areas. The method includes the following steps: navigating to the surrounding area of ​​the quay crane area using a first navigation path based on GPS positioning data; continuously scanning at least a portion of the quay crane area in the surrounding area to establish point cloud map data of cargo ships within the quay crane area; detecting GPS positioning signals in real time and matching point cloud objects in the point cloud map data with the GPS positioning data; generating a second navigation path based on the completed point cloud map data when the GPS positioning signal does not meet a preset signal strength threshold; and performing loading and unloading operations with the quay crane based at least on the second navigation path. This invention can fully utilize the edge information of cargo ships to achieve self-positioning of vehicles with six degrees of freedom, greatly improving the accuracy and safety of truck and quay crane alignment, even when cargo ships are docked at the quay and GPS positioning fails.

This utility model relates to the technical field of fuel-powered vehicles and new energy vehicles, and discloses a liquid-cooled plate riveting bracket anti-rotation positioning structure, including a bracket and a manifold. The bracket has a first rivet hole, and the manifold has a second rivet hole. The bracket is connected to the manifold by a rivet. The rivet passes through the first rivet hole and the second rivet hole to connect the bracket and the manifold. The end face of the manifold near the bracket has a circular hole structure, and the end face of the bracket has a square slot structure above the circular hole structure. A barb structure is integrally provided on the square slot structure. The barb structure passes through the circular hole structure. The barb structure of the bracket in this utility model can be inserted into the circular hole structure on the manifold. Finally, the rivet is installed. At this time, the relative position between the bracket and the manifold is unique, ultimately meeting the customer's requirements.

The application discloses an interactive scanning viewpoint online generation planning method, and belongs to the technical field of assembly state detection, and comprises the following steps: a, pasting a circle of coding blocks at the boundary of a scanning area; b, completing global three-dimensional reconstruction of all coding blocks; c, setting pose adjustment parameters of a coordinate system, and calculating an adjusted coordinate system homogeneous matrix; d, determining the connection order between reference sampling points according to a continuous scanning type, generating other sampling points between the reference sampling points and corresponding sampling directions; e, generating scanning viewpoints and corresponding scanning directions by using sampling point positions and sampling directions according to an effective scanning distance; and f, completing online generation planning of the scanning viewpoints. Through online generation of the scanning viewpoints, the application can realize self-positioning of a scanning device, and can also realize fast generation and planning of a large-range scanning viewpoint in a non-structure environment without a model, and has good applicability.