42results about How to "Improve assembly positioning accuracy" patented technology

This invention discloses a folded polar plate lead acid battery and its making method, among which the lead wire connecting two plates is folded into u-shape and monopolar and bipolar plates are arranged in the box in sequence according to the matched polarities, a V-shaped diaphragm wraps both sides of each plate, insulation bag sleeve two adjacent polar plates and the diaphragm warapping the polar plates, realizing internal serials connection by lead wires. The lead acid battery has the advantages of small volume, light weight and good power characteristic.

The invention discloses an engine timing chain system assembly tool and an assembly method. The assembly tool comprises a crank timing tool, a cam shaft timing tool and a tensioner tool. Through the adoption of the assembly tool provided by the invention, the assembly positioning accuracy can be effectively improved.

The invention relates to a backlight module and a photoelectric device, the backlight module comprises an optical plate and at least one light emitting element. The optical plate comprises a light-incoming face and a light-exiting face. The light emitting element is arranged on a circuit board and faces toward the light-incoming face, wherein, the light emitting element is magnetically absorbed on the optical plate by making use of at least one magnetic absorption member that is arranged on at least one or both of the optical plate and the circuit board. On account of using the magnetic absorption member for the assembly, the assembly positioning precision of the backlight module can be improved and the risk that the light emitting element is damaged can be reduced.

The invention relates to a device and a method for assembling permanent magnets of axial magnetic flux permanent magnet motors. The device comprises a fixing portion and a feeding portion. A guide gasket of the fixing portion is positioned at the upper end of a positioning bottom plate, a guide groove is formed in the upper end of the guide gasket, a plurality of vertical connecting holes are formed in the upper end of the guide groove, the lower ends of linear guide rails are positioned in the connecting holes and are connected with the guide groove, a permanent magnet groove is formed in theguide groove in the vertical direction, positioning jackscrews are further arranged on the side surfaces of the permanent magnet groove, and a guide rail fixing plate is connected with the upper endsof the linear guide rails; a propulsion guide block of the feeding portion is slidably fittingly connected with the linear guide rails, a feeding lead screw is connected with the upper end of the propulsion guide block, external threads are arranged on the surface of the feeding lead screw, the feeding lead screw penetrates the guide rail fixing plate to be matched with the guide rail fixing plate in a threaded manner, and a hand wheel is arranged at the upper end of the feeding lead screw. The device and the method have the advantage that the problem of high difficulty in assembling permanent magnets of axial magnetic flux permanent magnet motors at present can be solved by the aid of the device and the method.

The invention discloses an air cylinder cover water draining sleeve water feeding hole sand core tenon and a mounting technique of the tenon. The tenon is characterized in that a water draining sleeve sand core is arranged on a chassis core, convex tenons of the water draining sleeve sand core are inserted in concave tenon pits of the chassis core, non-following tenons are arranged on the contact portions of the convex tenons and the concave tenon pits, the non-following tenons are made in cooperation with concave holes of the concave tenon pits, when the non-following tenons of the convex tenons are arranged in the concave tenon pits, first clearances, second clearances, third clearances, slope distances and the non-following tenons are formed in the clearances between the non-following tenons and the pit walls, the length of the non-following tenons is more than 1/2 of that of the convex tenons, the convex tenons and the non-following tenons are round, and the concave convex pits are round. The technique has the advantages that casting burrs are reduced, core assembling mistake prevention can be achieved, the assembling and positioning precision of the sand core can be improved, and the technique is suitable for the process design of various air cylinder cover water draining sleeve water feeding hole sand core tenons.

The invention discloses a laser positioning measuring system used to build a vehicle assembly baseline. The system comprises an isosceles triangle tooling fixed at a predetermined position of a tail of a vehicle body, and a left connecting part and a right connecting part of a vehicle are located at both sides of the bottom of the isosceles triangle tooling. The system also comprises a first laser range finding positioning device and a second laser range finding positioning device mounted on both sides of the bottom of the isosceles triangle tooling and symmetrical to each other, and a laser marking device. The invention also discloses a laser positioning measuring method.

The invention relates to an assembly device and assembly method for a permanent magnet of an internal V-shaped permanent magnet motor. The assembly device comprises a fixing portion and a feeding portion; the fixing portion comprises a bottom plate, a workbench, a linear guide rail and a fixing end plate, the workbench is perpendicularly fixed to the upper end of the horizontal bottom plate, the lower end of the linear guide rail is connected with the workbench, and the upper end of the linear guide rail is connected with the fixing end plate; the feeding portion comprises a motor, a screw rod, a permanent magnet guide groove, a pneumatic device and a permanent magnet pushing guide block. The motor is fixed to the upper end of the fixing end plate, the screw rod is arranged at the lower end of the motor and connected with the permanent magnet guide groove, the motor and the screw rod rotate to drive the permanent magnet guide groove to slide up and down along the linear guide rail, thepneumatic device is fixed to the upper end of the fixing end plate and connected with the permanent magnet pushing guide block through a push rod, and the permanent magnet pushing guide block can bedriven to slide up and down along the linear guide rail. The problem of high difficulty in assembly of the permanent magnet of the internal V-shaped permanent magnet motor is solved.

The invention discloses a heat exchanger plate set positioning device. The device is provided with multiple rows of projected or recessed ripples in each plate heat exchange area; and after plates are assembled, the projected ripples of one plate are buckled with the recessed ripples of the adjacent plates to limit the moving dislocation of the adjacent plates so as to realize a positioning function of a heat exchanger plate set. The positioning device improves the plate assembly precision, effectively prevents the leakage problem of the plate set caused by dislocation between the adjacent plates under high-temperature or high-pressure and alternating load operation environment, and has the advantages of improvement of the pressure bearing capacity of the plate set and prolonging of the service life of the plate set.

The invention relates to a built-in V I-type permanent magnet motor permanent magnet assembling device and an assembling method. The device comprises a fixing part and a feeding part, wherein the fixing part comprises a bottom plate, a working table, a linear guide rail, and a fixing end plate; the working platform is vertically fixed at the upper end of the horizontal bottom plate; the lower endof the linear guide rail is connected with the working table; the upper end of the linear guide rail is connected with the fixing end plate; the feeding part comprises a motor, a screw rod, permanentmagnet guide grooves, a pneumatic device and a permanent magnet push guide block; the motor is fixed at the upper end of the fixing end plate; the lower end of the motor is provided with the screw rod; the screw rod is connected with the permanent magnet guide grooves; the motor and the screw rod rotate to drive the permanent magnet guide grooves to vertically slide along the linear guide rail; the pneumatic device is fixed at the upper end of the fixing end plate; and the pneumatic device is connected with the permanent magnet push guide block through a push rod and can drive the permanent magnet push guide block to vertically slide along the linear guide rail. The problem of large assembling difficulty of the built-in V I-type permanent magnet motor permanent magnet can be solved.

The invention provides a sensor fuzzy optimization method for accurate positioning of ship component assembly. The method comprises the following steps: determining a ship component assembly unit sensor type selection scheme; finding out an evaluation index set of a corresponding scheme; classifying and layering all evaluation indexes, and establishing a multi-target multi-layer structure model of the ship component assembly sensor; determining the membership degrees of all indexes in the model and the weight of each layer, and calculating the membership degrees and the weights of evaluation indexes; using the target layer as a first layer of the structure, enabling the membership degree corresponding to each index in the first layer to form a first layer fuzzy optimization membership degree matrix, calculating the fuzzy optimization membership degree of the first layer, giving an index weight set of the first layer, and obtaining the fuzzy optimization membership degree of the layer; and descending layer by layer from the first layer, performing fuzzy operation on each layer until the bottommost layer obtains the membership degrees of all the schemes, and selecting the scheme with the maximum membership degree as the optimal scheme according to the maximum membership degree principle.

The invention discloses a microcapillary membrane assembling, positioning and welding tool based on C-shaped positioning wires. The microcapillary membrane assembling, positioning and welding tool comprises an upper positioning mechanism, an upper positioning disc, a stand column, a lower positioning disc and a lower positioning mechanism. The upper positioning disc is supported on the lower positioning disc through three or more stand columns, and the three or more stand columns are evenly arranged in the circumferential direction of the disc body. An upper positioning mechanism and a lower positioning mechanism are installed on the upper positioning disc and the lower positioning disc respectively and used for being jointly connected with a plurality of C-shaped positioning wires and achieving tensioning of each C-shaped positioning wire. Wherein the C-shaped positioning wire is used for assembling, positioning and welding a microcapillary membrane, and the C-shaped positioning wire is formed by uniformly pressing a plurality of C-shaped grooves in the single side of a positioning wire blank along the axial direction through a C-shaped positioning wire forming tool.

The invention relates to a brake pedal assembly with a steering angle sensor. The left side of a brake pedal body is connected with the steering angle sensor through two sensor supports. The steeringangle sensor comprises a rocker arm, a pipe shaft, an electrical pull port, a rotary shaft, a double-screw bolt, a threaded hole and multiple round holes. The pipe shaft is pressed in a hole of the rocker arm and matched with a shifting fork open slot welded to a pedal arm, the front end of the double-screw bolt penetrates through a hole of the sensor support II to be matched with the threaded hole of the steering angle sensor, the steering angle sensor, the sensor support I and the sensor support II are fixed together, and the electrical pull port outputs a brake pedal steering angle signal.The pedal steering angle sensor is additionally arranged so as to provide a pedal steering angle signal, the assembling accuracy of the steering angle sensor is effectively improved, the structure issimple, design is reasonable, and installation is convenient.

The invention provides an engine complicated structure ring pipe positioning repairing method. Mutually buckled positioning clamping blocks are used to fix T-junctions and four-way joints on ring pipes; the buckling positions form a cylindrical through hole which is parallel to the plane where the ring pipes are positioned; when a positioning clamping block fixes a T-junction and a ring pipe, or fixes the four-way joint and the ring pipe, the ring pipe which is connected with one end of the T-junction or the four-way joint penetrates through the through hole, two side faces, perpendicular to the radial direction of the through hole, of the positioning clamping block abut against an axial end of the T-junction or the four-way joint, the side faces, parallel to the plane where the ring pipeis positioned, of the positioning clamping block press against the adjacent ring pipe, or humps are formed in the side faces, parallel to the plane where the ring pipe is positioned, of the positioning clamping block and an L-shaped angle formed by the humps and the positioning clamping block is close attached to the adjacent ring pipe; and titanium pipes are repaired one by one after the T-junctions and the four-way joints on two ring pipes are fixed. The method can lower the positioning and repairing difficulty of a complicated-structure ring pipe module, shorten the production cycle, guarantee the positioning precision, and improve the assembly consistency of an engine.

The invention relates to an assembling device and method for a permanent magnet of a built-in tangential permanent magnet motor. The device comprises a fixing portion and a feeding portion; the fixingportion comprises a base plate, a workbench, a linear guide rail and a fixing end plate; the workbench is perpendicularly fixed to the upper end of the horizontal base plate, the lower end of the linear guide rail is connected with the workbench, and the upper end of the linear guide rail is connected with the fixing end plate; the feeding portion comprises a motor, a screw rod, a permanent magnet guiding groove, a pneumatic device and a permanent magnet pushing guide block, the motor is fixed to the upper end of the fixing end plate, the lower end of the motor is provided with the screw rod,the screw rod is connected with the permanent magnet guiding groove, the motor and the screw rod rotate and can drive the permanent magnet guiding groove to slide up and down along the linear guide rail, the pneumatic device is fixed to the upper end of the fixing end plate, the pneumatic device is connected with the permanent magnet pushing guide block through a push rod, and the permanent magnet pushing guide block can be driven to slide up and down along the linear guide rail. The problem that the permanent magnet of the built-in tangential permanent magnet motor is large in difficulty issolved.