31results about How to "Achieve high-precision assembly" patented technology

The invention discloses a device and method for realizing axle hole assembly by utilizing flexibility of a robot. The device comprises a base, at least two sets of clamping mechanisms, a robot and a vision sensor, wherein the vision sensor is used for sending a center position of an obtained hole to a controller of the robot; the robot is provided with four freedom degrees which comprise the freedom degree translated along the direction of three shafts of a three-dimensional coordinate system established by utilizing the center position of the hole as a circle centre and the freedom degree rotated around at least one shaft; and the controller of the robot can be used for increasing the gain of a position ring moving along the three shafts so that a claw installed at the tail end of the robot obtains the flexibility for automatically regulating claw gestures under the action of a reacting force applied by the shafts while in contact with the shafts.

The invention discloses a zero-point fine tuning device for a grating type micro-nano positioning platform. The zero-point fine tuning device comprises a platform body and a motion part. On the basis of cooperation between a pedestal and a return spring, the freedom degree of a grating read-in head in an actual application process is increased. With introduction of a differential head and a wedge block, fine tuning of the motion of the pedestal is realized by inclined-surface transmission; and the fine tuning displacement can be read directly by number reading by the differential head, so that the operability of the user is enhanced. Meanwhile, positioning bar structures are arranged at the sides of cooperation between the motion part and a grating ruler, so that the high positioning precision of the grating rule is realized. During actual assembling, high-precision assembling of the grating ruler is realized without any special clamping fixture, so that the requirement of the zero point position precision of the grating ruler is met.

The invention discloses a transmission shaft assembly mechanism of a direct transmission group assembly device, which is characterized in that it includes a vibrating plate for the transmission shaft, a first conveying pipe, a material receiving positioning seat for the transmission shaft, and a transplanting mechanism for the transmission shaft; The material-receiving positioning seat includes a base and a material-receiving assembly, and the material-receiving assembly includes a material-receiving bump, a material-receiving slider, a traverse cylinder for the material-receiving slider, and a jacking cylinder for the transmission shaft; the lower surface of the material-receiving slider and There is a jacking interval between the lower sides of the socket, and the height between the upper surface of the receiving slider and the lower side of the socket is consistent with the shaft length of the transmission shaft; the upper end of the first conveying pipe and the transmission shaft use a vibration plate The discharge port of the first delivery pipe is connected, and the lower end of the first conveying pipe is connected with the blanking hole on the material receiving bump. The transmission shaft assembly mechanism of the direct transmission group assembly device of the present invention has the advantages of being able to effectively ensure the orderly output and precise positioning of the transmission shafts one by one, and help realize high-precision assembly of the transmission shaft.

The invention discloses a hose assembly connecting tool and its connecting system, comprising a support plate installed at the feed end of the assembly machine body through fastening bolts, the support plate is provided with a moving groove, and the moving groove There is a driving piece at the place, the connecting end of the driving piece is connected with a supporting block, and the supporting block moves relative to the moving slot through the driving piece, the telescopic connecting mechanism is connected to the supporting block, and the connecting end of the telescopic connecting mechanism There are two alignment shells connected, and the two alignment shells are equipped with an adjustment alignment mechanism, which is used for the hose assembly connection tooling and its connection system. The staff only needs to quickly place the two ends of the hose After aligning the shell, adjust the alignment mechanism to move and adjust the height of both ends of the hose until the two ends of the hose are kept at the same level, then the support block moves the hose to the assembly machine body for feeding At the port, the high-precision assembly of the hose assembly is realized, and at the same time, manpower is effectively saved.

The invention discloses an assembly error ultrasonic detection method, by setting two ultrasonic detection point groups, and setting at least two ultrasonic detection points at intervals in each ultrasonic detection point group, thus, using the same ultrasonic detection point group The energy amplitude of the ultrasonic echo signals at different ultrasonic detection points can directly determine whether there is a rotation error between two assembly workpieces, and the average value of the energy amplitudes of the ultrasonic echo signals of the two ultrasonic detection point groups In this case, it can be judged whether there is a translation error between two assembled workpieces, that is, the assembly error ultrasonic detection method of the present invention can accurately detect the type and direction of the assembly error, and can be used to guide the operator to complete the high-precision assembly work.

The invention provides a clamping head which comprises a base, a turning support, a finger fixing mechanism, a driving mechanism and a press block fixing mechanism, wherein the base is mounted on an external driving mechanism, and comprises a top plate, an end plate, a left side plate, a right side plate and a first cavity in the interior; the turning support comprises a connecting part and a turning part; the finger fixing mechanism comprises a fixing platform, a crank, a connecting rod, a sliding platform, a plurality of mechanical fingers and a plurality of ball joint connecting rods; the driving mechanism comprises a push-rod motor; the press block fixing mechanism comprises a shaft sleeve, a core shaft, two bending arms, a spring, two short connecting rods and two press blocks; each press block comprises a press block connecting part and a contact part. According to the clamping head provided by the invention, the mechanical fingers of different shapes can effectively fix workpieces of different shapes, so that the adaptability is relative high; the mechanical fingers and the contact parts of the press block jointly act on the upper and lower parts of a workpiece, so that the workpiece can be automatically clamped and prevented from migrating in moving and assembly processes, and high-precision assembly of the workpiece can be realized.

The invention discloses a method for three-dimensional dynamic simulation in the space manipulator auxiliary butt-joint process and relates to a method for three-dimensional dynamic simulation. The method is used for solving the problem that due to the fact that command and control personnel on the ground and an astronaut cannot visually see a manipulator, great trouble is brought for control over movement of the manipulator. The method comprises the specific steps of realization environment establishment, space manipulator three-dimensional virtual modeling and displaying, movement model establishment, manipulator movement simulation based on a rocking bar controller, real-time rendering of force-receiving and deformation of a manipulator flexible arm lever, dynamic display of a movement track of the tail end of the manipulator, multi-view interactive roaming in the auxiliary butt-joint process and project value and curve display in the space manipulator auxiliary butt-joint process. The method is applied to the technical field of computer analogue simulation.

The invention provides an air-cooled turbogenerator stator frame assembling and welding method. The air-cooled turbogenerator stator frame is composed of three parts of a middle-section frame (1), a turbine-end frame (2) and an excitation-end frame (3), the three parts carry out assembling and welding respectively, and then, final assembling is carried out. According to the structural characteristics of the stator frame in a new structure, a composite assembly method with vertical assembly and horizontal assembly combined is adopted, the assembling and welding quality of the stator frame is improved, and the operation and the construction are convenient; section assembling and welding are carried out for the stator frame, each section operates independently, parallel assembling and welding are realized, the construction period is shortened, and the assembling and welding efficiency is improved; and the stator frame baseboard is used as an assembly reference, the concentricity accuracy requirements of the whole frame body are ensured, and high-precision assembly of the stator frame is realized.

The invention provides a side plate installing vehicle for an omnidirectional fine-tuning satellite instrument. The side plate installing vehicle comprises a base assembly (1), a lifting function assembly (2), a turnover function assembly (3) and a side plate installing frame assembly (4), wherein the lifting function assembly (2), the turnover function assembly (3) and the side plate installing frame assembly (4) are arranged on the base assembly (1). The side plate installing vehicle can be adjusted in three linear directions of front and back, left and right and up and down and two angular directions of pitching and rolling through mechanisms such as an adjustable leg support, a screw rod, a linear guide rail and a lifter, and can be used for installing side plates of various satellite instruments on satellites.

The invention relates to a stripe image converter tube racking tool, which comprises a pair of circular tube formed by mutually buckled, a first end cover and a second end cover arranged on two ends of the circular tube, and a first locating device and a second locating device arranged coaxial to the circular tube, wherein annular steps with the number being equal to the number of electrodes in an image converter tube are arranged on an inner wall of the circular tube; axial positions of the annular steps are determined according to positions of the electrodes in the image converter tube; and inner holes of the annular steps are matched with the matched electrodes. According to the racking tool, the position accuracy including axial deviation, radial deviation, coaxiality and the like in a stripe tube racking process can be improved; an uncontrollable process link and manual operation are reduced, so that the consistency of racking is improved; and the efficiency for manufacturing stripe tubes and the yield are improved.