33results about How to "Achieve precise guidance" patented technology

The invention provides a deviation rectifying system of a shield tunneling machine. The deviation rectifying system of the shield tunneling machine comprises the shield tunneling machine, a guide measuring device, a calculation device and a control device, wherein the guide measuring device is used for acquiring the current operating situation of the shield tunneling machine after the deviation rectifying system of the shield tunneling machine is started, and sending the current operating situation to the calculation device; the calculation device is used for receiving and saving the current operating situation; and the control device is used for reading the current operating situation from the calculation device, generating control instructions needed for controlling the shield tunneling machine according to the current operating situation, and rectifying deviation of the shield tunneling machine according to the control instructions. Through the deviation rectifying system of the shield tunneling machine, precise guiding and automatic deviation rectifying of the shield tunneling machine can be achieved, and the working efficiency of the shield tunneling machine is effectively improved.

The invention discloses a radar optical device guiding error compensation method. The implementation process is that a radar optical device is fixed on a turntable and the turntable is leveled to adjust the azimuth to a selected reference direction; one to two reference surface features are selected, a servo motion mechanism is controlled to align the foresight direction of the radar optical device with a reference point position, and a reference point surface feature is enabled to be located at the field of view center of the device; the position of the turntable, the longitude, latitude andheight of the reference point position, and the pitching azimuth angle of the servo mechanism are recorded to determine errors of the device relative to a geographic coordinate system; and error compensation is carried out on obtained guiding information. The method is used for the outfield test of radar optical device data acquisition; and compensation is carried out on the GPS guiding information through measuring error angles between turntable board coordinate systems and local geographic coordinate systems, so that accurate guiding for the radar optical devices is realized and the qualityof the acquired data is ensured.

An external gear shift for the gear selection in a manual transmission is provided that includes, but is not limited to a gearshift/selector lever, which is guided in a link plate and which is movablealong a selector track and a plurality of shifting tracks, and a measuring sensor to detect an instantaneous position (s, w) of the gearshift/selector lever. Guide fingers of the link plate disposedbetween shifting and selector tracks each have flanks oriented obliquely to the shifting and selector tracks.

The invention provides an uncoiling and blanking die. The uncoiling and blanking die comprises a lower die base and an upper die base which is located above the lower die base and matched with the lower die base for punching. A lower die deburring insert and a supporting plate located on one side of the lower die deburring insert are arranged on the lower die base. A pressing core is arranged on the portion, corresponding to the lower die deburring insert, of the upper die base. An upper die deburing insert is arranged on one side of the pressing core in an attached mode. A guide positioning plate is arranged on the lower die base and located between the lower die deburring insert and the supporting plate. An oblique guiding plane which is in smooth connection with the top end face of the lower die deburring insert, and a vertical positioning plate which is in smooth connection with the bottom of the guiding plane are formed at the top of the guide positioning plate. The bottom of the positioning plane intersects with the horizontal top end face of the guide positioning plate. The invention further provides a multi-station machining device provided with the uncoiling and blanking die. According to the uncoiling and blanking die, accurate positioning can be conducted during coil stock blanking, and workpieces can be taken conveniently after being blanked.

Provided is a roller row type omni-directional drilling rig whole step-by-step moving device. A support is fixed to a cluster well rig substructure through connecting pin shafts, and a reversing rotating mechanism and a trolley are installed on a skid. The trolley is composed of a tray, an upper trolley base, a roller row and horizontal movement oil cylinders. The roller row is formed by installing 14 rollers on a frame, the horizontal movement oil cylinders are connected with the upper trolley base through pin shafts, piston rods of the horizontal movement oil cylinders are connected with the tray through bolts, guide rolling wheels are installed on the two sides of the front end of the upper trolley base, lug plates are installed at the two ends of the roller row, the roller row is connected with the upper trolley base through an adjusting rod, the trolley is connected with a jacking oil cylinder through a spherical surface tray and a clamping plate set, the jacking oil cylinder is installed on the support through bolts, and the spherical surface tray is installed on the upper trolley base. A limiting ring is installed on the spherical surface tray. Through the roller row type omni-directional drilling rig whole step-by-step moving device, on-site rotation of a whole drilling rig can be achieved, well site adaptability of the moving device is improved, the same moving device can be shared by multiple drilling rigs, and investment is saved.

A punch die indexing mechanism of a numerical control punch press comprises a rack. A rotating shaft is mounted on the rack through a bearing device, the rotating shaft is in rotating connection with an upper die frame, a pressing plate frame and a lower die frame from top to bottom in sequence, a punch die seat is fixedly mounted at the tail end of the lower die frame, a plurality of punch dies are mounted on the punch die seat, corresponding punching rods are arranged at the positions, directly facing the punch dies, of the upper die frame, and the punching rods are fixedly mounted on a fixing seat at the tail end of the upper die frame. A movable plate is fixedly connected on the bottom of the lower die frame, the piston rod of a longitudinal shifting oil cylinder is mounted in a mounting hole of the movable plate through bearings, and the shifting oil cylinder is fixedly connected on the rack. A locating plate is fixedly connected on the upper die frame, the locating plate is provided with an arc-shaped groove, a locating column is in sliding connection with the arc-shaped groove of the locating plate, and the locating column is fixedly connected on the rack. One end of a piston rod of a pressing plate oil cylinder is hinged to the pressing plate frame, and the cylinder body of the pressing plate oil cylinder is fixed on the upper die frame. The punch die indexing mechanism of the numerical control punch press can meet hole punching requirements of different hole diameters, and is simple in structure, convenient to operate, and stable in operation.

The invention discloses a slit-type iris diaphragm based on air floating guiding. Two X-direction driving control units, two Y-direction driving control units, two X-direction support guiding units, two Y-direction support guiding unit and a diaphragm window are mounted on a front panel of the slit-type iris diaphragm; two gravity compensation units are mounted on a back panel; the diaphragm window is composed of two X-direction diaphragm plates, two Y-direction diaphragm plates, two X-direction driven air floating guide rails and two Y-direction driven air floating guide rails; the pair of units are rotationally symmetrical with respect to an optical central axis oo' of a system; the slit-type iris diaphragm comprises four support guiding units based on an air floating principle, four driven guide rails are guided, the four diaphragm plates are controlled through the driving control units and the gravity compensation units respectively and connected end to end to form a coplanar rectangular window, and scanning in a plane in an arbitrary range is finally achieved. The established slit-type iris diaphragm based on air floating guiding has high precision and stability.

The invention discloses a sensor fixing device for thermal error measurement of a numerical control machine tool. A fastening module is arranged on a standard connecting rod and can move along the standard connecting rod; one side of the fastening module is connected with a fine adjustment fixing base of a sensor fine adjustment module; and the fine adjustment fixing base is provided with a support for installing an eddy current sensor. The universality and the thermal error measurement efficiency of the fixing device can be remarkably improved, and the problem that the measurement precision of the eddy current sensor is reduced due to the installation precision is avoided.

The invention relates to the technical field of engineering machines, in particular to an overlapped plate material distribution machine and a control system and a control method thereof. A hopper isincluded. A discharging port for conveying raw materials out of the hopper is formed in the hopper. The overlapped plate material distribution machine further comprises a stop assembly capable of stretching and contracting in the horizontal direction. The stop assembly is arranged on the hopper and used for guiding the raw materials flowing out of the discharging port. By means of the overlapped plate material distribution machine and the control system and the control method thereof, the possibility that concrete is poured onto a truss can be effectively reduced.

The invention discloses a pressing mechanism for molding an APG (automatic pressure gelation) insulating part. A pressure plate is arranged on a rack through a drive device in a reciprocating motion manner, wherein a guide device comprises an X-axis guide mechanism, a Y-axis guide mechanism and a Z-axis guide mechanism, wherein the Z-axis guide mechanism comprises two sliding rail seats and two sliding rails; the two sliding rails are symmetrically fixed on the rack; various sliding rails are arranged on the sliding rail seats in the reciprocating motion manner; one end of each sliding rail is fixedly connected with the pressure plate; the X-axis guide mechanism is arranged between the rack and the sliding rails; and the Y-axis guide mechanism is arranged between the rack and the sliding rails. Through the additional arrangement of the X-axis guide mechanism and the Y-axis guide mechanism between the rack and the sliding rails, limiting in the X-axis direction and the Y-axis direction is realized; yawing force caused by inclination of the overall mechanism in the X-axis direction and the Y-axis direction is removed; swing of the sliding rails in the X-axis direction and the Y-axis direction is avoided; accurate guide of the X-axis guide mechanism and the Y-axis guide mechanism is realized; and processing accuracy is ensured.