41results about How to "Improve high precision" patented technology

A track-based traffic system having an automatic steering mechanism and a fail-safe mechanism, in which a detection mechanism highly accurately detects the amount of displacement of a vehicle in the lateral direction of a track and has high reliability. The track-based traffic system has the steering mechanism for automatically steering front wheels and rear wheels of the vehicle by an actuator, and also has the fail-safe mechanism (10) including a protection track defined on the road surface of the track and also including protection wheels (40) provided at the lower part of the vehicle and moving within the protection track without contact. The track-based traffic system further has a pair of non-contact displacement meters (13) attached to a support bracket suspended from the lower part of a vehicle body, placed within the protection track (14), and installed so that detection waves (a) are radiated to left and right side-walls (14a), respectively, of the protection track. The pair of non-contact displacement meters measures the distances from the displacement meters to the left and right side-walls of the protection track.

A motion guide device has high rigidity and high accuracy achieved by improving the shape of a track rail. The track rail (10) has at least two rolling body rolling grooves (11) in an upper face (10a) of the track rail and also has at least one rolling body rolling groove (11) in each of opposite side faces (10b) of the track rail, and all the rolling grooves (11) extend in the longitudinal direction of the track rail. When viewed in a cross section perpendicular to the longitudinal direction of the track rail (10), with two vertical imaginary lines (A, A) drawn from the edges on the opposite outer sides of the at least two rolling grooves (11) formed in the upper face (10a), the at least one rolling groove (11) formed in each of the opposite side faces is located closer to a corresponding outer side face of the track rail than the imaginary line (A, A). Further, at least those portions of the track rail (10) which are near the rolling grooves (11) in both the upper face (10a) and the opposite side faces (10b) of the track rail (10) are formed with an inclination angle.

The invention provides a wet polishing dust remover, which belongs to the technical field of operation. It solves the problem of insufficient safety of the existing polishing dust removal device. The wet polishing dust collector includes a shell with an inner cavity, the bottom of the inner cavity is a water storage area, the front of the inner cavity is a polishing dust collection area, and a control port is opened on the side wall of the polishing dust collection area; the rear of the inner cavity The upper part is the air outlet area, and the polished dust collection area and the air outlet area are separated by a partition that is fixedly connected with the housing. There is an air outlet on the side wall of the air outlet area in the housing; It is a liquid level control mechanism that controls the height of the water in the water holding area and provides a wind gap between the bottom edge of the partition and the liquid surface. This wet polishing dust collector has the functions of dust collecting hood and dust collector. This wet polishing dust collector omits the pipeline required for connecting the dust collecting hood and dust collector, thereby eliminating the risk factors caused by dust settling in the pipeline.

The invention discloses a magnetic-driven linear reciprocating yarn guide device. The device comprises a friction roller, a bobbin and a yarn guide system, wherein the yarn guide system includes a slide block unit and a slide rail unit slidingly matched with each other; the slide block unit includes a top thrust winding, a left suspension winding, a right suspension winding and a slide block top plate; the slide rail unit includes a middle thrust permanent magnet, a left suspension permanent magnet, a right suspension permanent magnet, a left slide rail and a right slide rail; in operation, the other end of a yarn wound on the bobbin is connected with a front surface of the slide block top plate after passing through a yarn guide nozzle and a yarn guide rod in sequence; the left suspension winding, the right suspension winding, the left suspension permanent magnet and the right suspension permanent magnet correspondingly generate magnetic cooperation to suspend the left slide rail and the right slide rail; and meanwhile, the top thrust winding and the middle thrust permanent magnet generate magnetic cooperation to push the slide block top plate to perform a linear reciprocating motion. The device is lower in internal friction force, lower in energy consumption, higher in control precision, simple in structure and easy to machine.

The invention discloses flexible rope tension-displacement measurement and control and crimping equipment. The flexible rope tension-displacement measurement and control and crimping equipment includes a machine base, a rope connection device and a man-machine interaction control box; wherein the rope connection device includes a displacement drive module, a tension drive module, a tension-displacement measurement and control module, and a compliance crimping module; the displacement drive module is used for adjusting the length of the rope; the tension drive module is used for adjusting the tension of the rope; the tension-displacement measurement and control module is used for measuring and controlling the length and tension of the rope; and the compliance crimping module is used for completing the compliance centered crimping of a jacket. Through the simultaneous action and cooperation of the displacement drive module, the tension drive module, the tension-displacement measurement and control module and the compliance crimping module, the force-displacement hybrid measurement and control of the flexible rope connection is realized; and therefore, the problem of difficult to control the accuracy caused by factors such as small strain ratio and length-tension coupling in the rope manufacturing process is effectively overcome, and the accuracy and efficiency of rope measurementand connection are improved.

The invention discloses a material-picking robot for processing auto parts, which comprises a bottom plate, a material-picking frame, a rear picking platform and a material-moving platform. Both ends above the bottom plate are provided with transport frames, and a transport frame is arranged between the two transport frames. There is a material-moving platform, one end of the material-moving platform is provided with a pick-up frame, and the other end of the processing frame is provided with a back-picking platform. The beneficial effect of the present invention is that the scraps and wastes produced in the process of processing are dropped and collected through the processing frame, which ensures the environmental protection of the use, facilitates the staff to clean up the wastes, and synchronously drives the picking through the two first sliding seats. There are three rotating plates with equal arcs on the four edges of the two motors, and several grabbing blocks are arranged symmetrically at the bottom of the rotating plates at equal intervals to ensure that the robot is more efficient in grabbing and picking robot parts. At the same time, the robot has a larger capacity for grabbing and picking auto parts, and the robot has a high degree of automation, saving time and effort in use.

The invention discloses a high-precision satellite pulse per second synchronous punctuality device and method. The method is characterized in that phase difference detection of 1PPS signals is realized by using flip phase discrimination in the process of realizing synchronous punctuality, and the output phase of 1PPS is accurately controlled in real time by combining stepping compensation and phase shift alignment so that an accumulated error of a local clock and hopping of satellite 1PPS signals are well eliminated, high-precision synchronous punctuality is realized, during satellite synchronization, synchronization precision of 1PPS output is superior to 16ns; when a satellite is disconnected, the local punctuality is 24 hours, the error is less than 3 microseconds, moreover, online configuration of the output 1PPS pulse width is supported.

The invention provides a magnetic-suspension wave detector. The magnetic-suspension wave detector comprises a shell, a fixed permanent magnet, a first diamagnetic body, a coil, a second diamagnetic body and a suspension permanent magnet, wherein the fixed permanent magnet, the first diamagnetic body, the coil and the second diamagnetic body are sequentially arranged at the inner part of the shell from top to bottom, the suspension permanent magnet is positioned in the coil, and the magnetic pole magnetisms of the fixed permanent magnet and the suspension permanent magnet facing each other are different. According to the magnetic-suspension wave detector provided by the invention, the gravity born by the suspension permanent magnet can be offset through an attraction force from the fixed permanent magnet to the suspension permanent magnet, and the suspension permanent magnet is guaranteed to be in a stable state through the diamagnetic bodies which are positioned at the upper part and the lower part of the suspension permanent magnet; and when the suspension permanent magnet shifts to optional one direction, a component force of a horizontal direction or a vertical direction of a resulting force born by the suspension permanent magnet is opposite to a shifting direction, thus the suspension permanent magnet can be quickly and accurately attracted to return to a balance position, and the sensitivity and the accuracy of monitoring are increased.

A motion guide device has high rigidity and high accuracy achieved by improving the shape of a track rail. The track rail (10) has at least two rolling body rolling grooves (11) in an upper face (10a) of the track rail and also has at least one rolling body rolling groove (11) in each of opposite side faces (10b) of the track rail, and all the rolling grooves (11) extend in the longitudinal direction of the track rail. When viewed in a cross section perpendicular to the longitudinal direction of the track rail (10), with two vertical imaginary lines (A, A) drawn from the edges on the oppositeouter sides of the at least two rolling grooves (11) formed in the upper face (10a), the at least one rolling groove (11) formed in each of the opposite side faces is located closer to a corresponding outer side face of the track rail than the imaginary line (A, A). Further, at least those portions of the track rail (10) which are near the rolling grooves (11) in both the upper face (10a) and theopposite side faces (10b) of the track rail (10) are formed with an inclination angle.

The invention discloses a broadband millimeter wave signal analog-to-digital conversion method and system. The method is as follows: 1) the optical pulse is input to the optical port of the dual-output electro-optic intensity modulator; the electrical port of the dual-output electro-optical intensity modulator is used to receive the millimeter-wave signal to be converted; wherein, the frequency range of the millimeter-wave signal is [f 1 , f 2 ], light pulse frequency f 0 Satisfy 2) Convert the modulated optical signals output by the two arms of the dual-output electro-optical intensity modulator back into electrical signals v 1 (t), v 2 (t); then check mark v 1 (t), v 2 (t) After performing low-pass filtering and quantization respectively, the signal V 1 (t), V 2 (t) and input digital signal processing unit; 3) digital signal processing unit according to signal V 1 (t), V 2 (t) Calculate and obtain the converted digital signal of the millimeter wave signal to be converted.

The invention discloses a preparation device of an annular screen cold storage packing of a heat regenerator and a manufacturing method thereof. The device consists of a die shank, an upper supporting plate, an upper cushion plate, an upper die holder, an upper clamping plate, a female die, an upper guide sleeve, a guide pillar, an outer stripping plate, a lower guide sleeve, a lower cushion plate, a lower die holder, an upper spring, a knockout plate, a knockout rod, a punching head, a female die core insert, an inner stripping plate, an outer stripping plate insert, a lower spring, a male die core and a contour casing. Through the preparation device and the manufacturing method, the strict requirement on the high-quality annular screen packing during research, development and production of a regenerative refrigerator can be satisfied, not only can the high-accuracy dimension tolerance control on the inner diameter and the outer diameter of an annular screen sheet during production be guaranteed, but also the flatness of the screen sheet and the die-cutting quality of the inner and outer edge sections of the screen can be guaranteed, and the consistency of annular screen sheets during mass production can be realized at a lower cost.