271results about How to "Improve connection accuracy" patented technology

The invention relates to a pulse laser synchronous riveting and welding method and a device of ultrathin plates. An upper layer of plate and a lower layer of plate are stacked and positioned on a concave mold having mold holes; a bottom mold is arranged on the concave mold; a pulse laser beam is used for acting on the upper layer of plate or an energy absorbing layer coated on the surface of the upper layer of plate to form an explosive plasma; the lower layer of plate is collided by the upper layer of plate; the upper layer of plate and the lower layer of plate generate high-strain-rate plastic flow coupling; and under the restraint of the bottom mold, the upper layer of plate and the lower layer of plate are plasticized to form rivet button shapes so as to generate mechanical interlocking for riveting. In the plastic deformation process, the pressure stress exists on the contact interfaces of the upper layer of plate and the lower layer of plate, and the high-speed sliding and the shearing deformation are generated, so that the interfaces generate the melting and the atomic diffusion, and the upper layer of plate and the lower layer of plate are welded when colliding the bottom mold. The method and the device synchronously realize the riveting and the welding of the upper layer of plate and the lower layer of plate; and joints formed by the method and the device have higher connecting strength and fatigue resistance through the compounding effect characteristic of the mechanical bonding and the metallurgic bonding.

The invention discloses a solar panel component and a processing technology. The solar panel component mainly comprises components, wherein the components comprise a battery piece, a glass layer, a backboard and a frame on the outer side, wherein the upper end of the battery piece is provided with a silicon nitride passivation antireflection layer; the electrode grid lines of the battery piece are formed in a way that fragmented main grid lines and grouped thin grid lines are arranged in parallel and are connected by auxiliary grid lines; and the frame comprises an integral frame and a detachable frame. By use of the solar panel component and the processing technology provided by the invention, the internal laminated structure and the external frame structure of the solar panel are improved to lower power loss, improve a photoelectric conversion rate and prolong the service life of the solar panel component.

The invention provides a detachable axial-butting and quick-locking mechanism, which comprises a connecting shaft (1) and a connecting base (3), wherein one end of the connecting shaft (1) is provided with a positioning pin (2), the connecting base (3) is matched with connecting shaft to connect parts together, the column surface of the connecting base is provided with a lock latch (6) which is vertical to the central axis, penetrates into an upper locking base (4) and is radially communicated with the barrel hole of the connecting base (3), and a lock latch which is used for coaxially locking the connecting shaft, a truncated cone rotating body (12) is machined on the lower end of the lock latch, a connecting shaft penetration contact unlocking surface is machined on the truncated cone rotating body (12) so as to lock and unlock the axial inner-concave ladder-shaped section cutting surface of the truncated cone rotating body (12), and the lock latch always downwards acts on the connecting penetration locking contact surface (10) through a locking spring (5) connected on the step of the upper end of the truncated cone rotating body. According to the invention, quick locking and disassembly between two parts can be realized, the structure is compact and convenient, no calibration and adjustment are needed, and the maintainability, the reliability and the suitably-assembled property are good.

The invention relates to a pin shaft. The pin shaft comprises a cylindrical body, an expanding sleeve and a fixing part. The peripheral wall at one end of the body is provided with a first slope surface, and the distance from the first slope surface to an axis of the body is gradually decreased along the direction departing from the other end of the body. The expanding sleeve comprises a sleeve body sleeving one end of the body, the inner peripheral wall of the sleeve body is provided with a second slope surface in abutting joint with and matched with the first slope surface, and the sleeve body is provided with at least one slit penetrating the sleeve body radially and extending towards two ends of the sleeve body. The fixing part is used for applying axial pressure, towards the body, on the expanding sleeve so as to enable the sleeve body to be expanded open by the first slope surface. The pin shaft is capable of eliminating gaps between pin shaft holes of hinge joint seats and the pin shaft, so that service life of the pin shaft is prolonged and connection precision of the pin shaft is improved.

The invention discloses a connecting structure for nested composite sections. The connecting structure comprises an upright post and a cross beam which are respectively crossly nested by elongated members to form a thin-wall cylinder, and is characterized in that: the upright post and the cross beam are vertically connected through a connecting joint; the connecting joint comprises a bottom plate and a lug boss, wherein a hole cavity is formed on the lug boss along the direction vertical to the bottom plate; the lug boss and the cross beam are in inserted connection, and the bottom plate are connected with the side walls of the upright post through a fastening piece; convex ribs are molded on an outer side wall of the upright post along the length direction; a guiding grooves which are matched with the convex ribs are formed at the bottom of the bottom plate; and the outer side wall of the upright post is also provided with protrusions which prop against the lower edge of the bottom plate. Compared with the prior art, the connection structure has the advantages that: due to vertical connection of the detachable connecting joint, the bottom plate of the connecting joint and the upright post are connected by irregular bolts, and the connecting structure realizes detachable connection, and also can guarantee tight adhesion of the side walls of two sides of the upright post with the composite structure; and seamless connection between the side walls of two sides of the upright post is realized, and the strength and rigidity of the upright post are obviously improved.

The invention discloses a tool positioning-clamping mechanism for a milling machine, which comprises a tool (1), a tool shank (3) and a pull bar (4). The tool shank (3) is partially contained in a machine spindle (5) and fixed to the same, the tool shank (3) is provided with a center hole (3.1), the tool (1) is nested into the center hole (3.1), the pull bar (4) is contained in the center hole (3.1), one end of the pull bar (4) is connected with the tool shank (3) and axially limited, the other end of the pull bar (4) is fixedly connected with the tool (1), and accordingly the tool (1) is fixedly connected with the machine spindle (5). The connection way is higher in connection rigidity than the original Morse taper connection way, connection is more stable, and clamping is better. When the machine spindle is in high-speed rotation, the tool is more stable in rotation and less apt to fall from the spindle, and safety factor is higher.

The invention is applicable to the technical field of robot control and provides a method and a device for adjusting the charging pose of a robot. The method comprises the following steps: judging whether the robot meets the directly-facing charging condition under the current pose; if not, combining with the charging parameter to rotate the robot to obtain the directly-facing charging pose; and controlling the robot to move to a position directly facing the charging pose for charging. According to the method, the robot is combined with the charging parameter and the rotary data to determine the charging pose. Compared with the traditional technology, the method has higher charging connecting precision to further improve the charging efficiency.

The invention discloses an automatic bolt tightening device of a six-axis robot. The automatic bolt tightening device of the six-axis robot includes a shell rear end, a shell front end, an alternatingcurrent servo motor, a harmonic reducer, an adapter flange, a toque sensor, an output shaft and a sleeve. The automatic bolt tightening device of the six-axis robot has the advantages and benefits that fully automatic bolt tightening operation can be finished according to the automatic bolt tightening device of the six-axis robot, the automatic bolt tightening device of the six-axis robot can beapplied to a production line with automatic assembling, accuracy and the assembling quality of bolt connection are improved greatly, installing time is shortened, and labour intensity of an operator is reduced; and the sleeve of the automatic bolt tightening device of the six-axis robot can be changed quickly, bolts with the different models can be tightened, and assembling work is convenient.

The invention discloses a hot melting device for a poly ethylene (PE) tee joint. The device comprises a rack, a main pipe locating table, a punching tool transverse moving table and a branch pipe locating table; a clamping jaw used for locating a main pipe horizontally and a rotary air cylinder used for driving the clamping jaw to rotate are arranged on the main pipe locating table; the punching tool transverse moving table is located at one side of the main pipe locating table and can move in the axial direction perpendicular to the main pipe; the branch pipe locating table is located at the other side of the main pipe locating table and can move in the axial direction perpendicular to the main pipe; branch pipe locating clamping rings used for locating branch pipes in the mode that the axial direction of the branch pipes is perpendicular to the axial direction of the main pipe in the horizontal plane are arranged on the branch pipe locating table; a punching tool and a motor used for driving the punching tool to rotate are arranged on the punching tool transverse moving table; a heating plate is arranged between the main pipe locating table and the branch pipe locating table; guide rails are arranged at the two sides of the heating plate; a heating plate lifting cylinder used for driving the heating plate to ascend and descend along the guide rails is arranged on the rack; a floating mechanism is arranged on the guide rails. The hot melting device for the PE tee joint is capable of completing a plurality of steps and simplifying production procedures, and therefore the production efficiency is improved.

The invention discloses a special workbench for quick mounting of a pump and relates to the technical field of pumps. The special workbench comprises a supporting base, wherein an adjusting transmission mechanism is fixedly connected with the position, close to the top end and located on the outer side, of a left supporting frame; a bolt auxiliary connection mechanism is fixedly connected with themiddle position at the top of the left supporting frame; a movable supporting seat is slidably connected with the top of a fixed rail plate; a right supporting frame is fixedly connected with the middle position at the top of the movable supporting seat; an internally-threaded sleeve block is fixedly connected into the upper part of the fixed rail plate; a limiting stop block is fixedly connectedwith the middle position at the top of an operating table; and clamps are symmetrically and rotationally connected with the inner sides, close to the tops, of the left supporting frame and the rightsupporting frame. The special workbench for quick mounting of the pump attains the goals that the operation is easy, the precision is high and the speed is high; the rotation by any angles can be achieved; the positioning fit deviation is small; the bolt connection between pump bodies can be facilitated; the bolt connection precision can be improved; and the workforce during the bolt connection process can be reduced.

The invention relates to the technical field of rail transit equipment, in particular to a pedal system between an air rail train and a platform and a control method of the pedal system. The pedal system and the control method aim to solve the problem that a safety distance gap between the air rail train and the platform causes potential safety hazards. In order to solve the purpose, the inventionprovides the pedal system between the air rail train and the platform and the control method of the pedal system. The pedal system comprises a pedal device and a butt joint part, the pedal device isarranged on one of the air rail train and the platform, and the butt joint part is arranged on the other of the air rail train and the platform. The pedal device comprises a connecting plate, a driving mechanism and a transmission mechanism connected with the connecting plate and the driving mechanism, the driving mechanism can drive the transmission mechanism to move, and then the transmission mechanism drives the connecting plate to be in butt joint with the butt joint part. The pedal system is simple in structure, low in manufacturing cost and capable of meeting requirements of public transport mass production.

The invention discloses a PCB (printed circuit board), a connecting method for the PCB and a COF (chip on FPC (flexible printed circuit)), as well as a liquid crystal display device. The connecting method comprises the following steps: A, a clearance groove/clearance grooves is/are arranged at one side or two sides of a laminating area/laminating areas of the PCB, wherein the PCB and the COF are laminated on the laminating area/laminating areas; B, a high-temperature laminating cutter bit is used for laminating the COF and the printed circuit board assembly (PCBA), so that the COF and the PCBA are connected on the laminating area/laminating areas. According to the invention, as the clearance grooves are arranged at the two sides of the laminating areas at which the PCBA and the COF are laminated, so that the two sides of the laminating area/laminating areas of the PCBA are not affected by the high temperature of the laminating cutter bit, thereby avoiding the defect that the distortion of the PCB at the two sides is accumulated on the PCB on the laminating area/laminating areas so that large displacement of golden fingers on the laminating area/laminating areas can be caused and ensuring the connection accuracy of a leading wire of the COF and the golden fingers on the PCBA.

The invention provides network shared systems, a network connection method and an access method for user equipment and belongs to the technical field of communication. A network shared system comprises at least two eNodeB-CUs (Central unit) and an eNodeB-DU (Distributed unit). Each eNodeB-CU belongs to different operators. At least two CU-DU interfaces are set on the eNodeB-DU. Each CU-DU interface corresponds to an operator. Each eNodeB-CU establishes network connection with the eNodeB-DU through utilization of the CU-DU interfaces of the belonging operators. According to the network shared systems, the network connection method and the access method, each operator owns the independent eNodeB-CU, can independently decide functions supported by the eNodeB-CUs, can carry out upgrading management on the eNodeB-CU without negotiating with the other operators and can independently determine partial wireless parameters of the eNodeB-CUs, so autonomous control capacity and competitiveness ofthe operators for a network in a network shared scene is improved, and security of operation and maintenance data is improved.