50results about How to "Guaranteed precision control" patented technology

The invention relates to a spacecraft anti-interference attitude control method in a condition of a damaged actuating mechanism. The method provides a spacecraft anti-interference attitude control system for conditions that a spacecraft actuating mechanism is physically attacked by an opponent in a space confrontation and a spacecraft platform has an external environment interference and a systemnon-modeling dynamic influence. The method includes: firstly, establishing a spacecraft attitude control system model in conditions of the damaged actuating mechanism, the external environment interference and the system non-modeling dynamic influence; then designing an interference observer, and estimating an equivalence interference caused by the external environment interference and the systemnon-modeling dynamics; designing a learning observer for an actuating mechanism failure fault, caused by an attack, of the actuating mechanism, and reconstructing the actuating mechanism fault; and finally designing a composite controller according to an equivalence interference estimate and actuating mechanism fault reconstruction information, and constructing the spacecraft anti-interference attitude control method in the condition of the damaged actuating mechanism. The method is applicable to high-precision and high-reliability control of the spacecraft attitude control system.

The present invention provides a simple detection device of circularity and linearity of bar stock. Four parallel guide rails are installed on a platform, consisting of a linear motor work guide rail, a guide rail 1, a speed regulation motor work guide rail and a guide rail 2. The linear motor work guide rail is provided with a linear motor and a gauge stand 2; the speed regulation motor work guide rail is provided with a speed regulation motor 1 and a speed regulation motor 2, a double-row cylindrical roller bearing 1 is connected with the speed regulation motor 1 and the speed regulation motor 2, and a double-row cylindrical roller bearing 2 is arranged at a corresponding bearing pedestal; the gauge stand 1 is arranged on the guide rail 2; when rod materials to be detected are putted on the double-row cylindrical roller bearing 1 and the double-row cylindrical roller bearing 2, a dial indicator is arranged on the gauge stand 1, the dial indicator and the position of the rod materials to be detected are observed, the rod materials to be detected begin to rotate, and the maximum difference of pointer bouncing is recorded; and the dial indicator is arranged on the gauge stand 2, the rod materials to be detected are contacted with the guide rail 1, and the reading difference during the movement of the pointer is recorded. The simple detection device of circularity and linearity of bar stock is rapid, accurate in detection, low in cost, simple in operation, high in rechecking efficiency and saved in both time and labor.

The invention belongs to the field of assembly of small-caliber bullets, and in particular relates to a screw-in type electric primer explosion-proof screwing machine used in the assembly of small-caliber bullets. A screw-in type electric primer explosion-proof tightening machine of the present invention includes a cartridge cup, a jacking mechanism, a positioning and clamping mechanism, a pit device for automatically pressurizing and searching for a screw-in type electric primer, an air circuit system, a control part and controlling software. The jacking mechanism of the screw-in electric primer explosion-proof screwing machine is installed on the machine base, the cartridge cup is located above the jacking mechanism, and the positioning and clamping mechanism, automatic pressurization and the pit device for finding the screw-in electric primer are located in the cartridge in turn. The top of the cylinder cups are installed on the rack. The air source, valve, air pipe and the pneumatic actuators of the above mechanical parts form an air circuit system. The control software is set in the controller of the control part, and the controller and the control software control the operation of the above-mentioned mechanical structure. The screw-in electric primer explosion-proof tightening machine of the present invention can automatically complete the screwing of the screw-in electric primer, it solves the problem of automatically finding the pit on the screw-in electric primer, and can ensure the precision control of the screw-in electric primer tightening depth , to ensure product quality, realize the separation of man and machine, and ensure the safety of production personnel.

The invention provides a manufacturing method of an ink-jet printing digital micro-fluidic chip, which comprises the following steps of: 1, designing an electrode circuit pattern to be printed, and preparing a thin film serving as a dielectric layer; 2, according to the electrode circuit pattern, using an ink-jet printer for carrying out ink-jet printing of nanoscale conductive ink on one face of the dielectric layer so as to carry out single-layer circuit printing or complex circuit printing; and 3, coating the other surface of the dielectric layer with a hydrophobic layer. According to the manufacturing method of the ink-jet printing digital micro-fluidic chip, high-precision resolution ink layer control is carried out by utilizing ink jet of an ink-jet printer, the problems that steps are generated in an electrode gap and liquid is blocked are solved, the problem of separation of an electrode and a lead is solved, and the influence of short circuit in a complex circuit design is effectively avoided. The ink-jet printing process is relatively simple, low in cost and high in precision, is suitable for repeated test requirements of the digital micro-fluidic chip in the research field, can greatly improve the working precision and efficiency of the digital micro-fluidic chip, and has practicability.

The invention discloses a pile column connection precise positioning pouring system and a construction method. The pile column connection precise positioning pouring system comprises a steel stand column, a drilled pile, a control frame connected to a supporting platform, a first jack connected between the control frame and the horizontal direction of the steel stand column, a second jack connected between a protective cylinder and the horizontal direction of the steel stand column, and a feeding pipe inserted into the steel stand column. During construction, by arranging the control frame, the steel stand column can be effectively borne; by arranging the supporting platform, the supporting platform can be fixedly connected through a bearing arm pre-connected to the steel stand column; by arranging the first jack and the second jack, installation is facilitated, and adjustment, clamping and fixing are facilitated; and the first jack and the second jack are jointly controlled through a verticality adjusting controller, so that cooperation and synchronous control are facilitated. Through pouring construction of different grades of concrete, the overall construction of the steel stand column and the drilled pile is guaranteed, and effective construction during concrete grade conversion and precision control in the process are guaranteed.

The invention discloses a cutting head follow-up control system. The system comprises a host, a sensor module and a driving assembly, wherein the host is electrically connected with the sensor moduleand the driving assembly separately, the sensor module is used for measuring physical characteristics of a laser cutting head nozzle, converting the physical characteristics into signals and transmitting the signals to the host, the host sends a corresponding control instruction to the driving assembly after receiving the signals, the sensor module comprises a capacitance measuring unit and a temperature measuring unit, the capacitance measuring unit is used for detecting capacitance signal between the laser cutting head nozzle and a to-be-cut workpiece, and the temperature measuring unit is used for detecting the temperature of the capacitance measuring unit. According to the follow-up control system, the follow-up control precision is improved, the follow-up control system can automatically give an alarm and stop in case of abnormal operation, the overall precision of laser cutting operation is guaranteed, an operator can conveniently store, analyze and estimate all data appearing infollow-up control, the use condition of the follow-up control system can be better monitored, and maintenance management in the later period is facilitated.

The invention relates to the technical field of casting equipment, in particular to a manipulator for an automatic casting production line. The manipulator is characterized in that a second conveyor is arranged on one side of the outer end of a first conveyor, a third conveyor is arranged on the other side of the outer end of the first conveyor, a group of connecting frames are fixedly mounted between the first conveyor and the second conveyor, a clamping manipulator is arranged on one side of the bottom end of each connecting frame, a first manipulator mechanism is fixedly mounted on one side of the top end of the first conveyor, and a paint spraying mechanism is fixedly mounted on the side, close to the first manipulator mechanism, of the outer wall of the first conveyor. According to the manipulator for the automatic casting production line, the whole device can achieve simple, convenient and efficient workpiece forging, the working efficiency of a user is effectively improved, and a better use prospect is brought.

The invention relates to an automatic gear shifting control system of a motor in an electric automobile, which is characterized by comprising the following components: a motor controller, a system controller, a battery voltage sensor, a battery current sensor, a first rotating speed coder, a second rotating speed coder, a folk position sensor group, a transmission motor oil temperature sensor, anda pressure source pressure sensor; wherein, the input ends of the motor controller are connected with two output terminals of a storage battery via a first wire; the output end of the motor controller is connected with the input end of the power supply via a second power supply wire. By using the invention, response is rapid, and gear shifting time is less than 1s; speed control is controller atconstant speed with accuracy, and the phase error is less than 1 degree; gear shifting is smooth without any gear shocking.

The invention relates to an overturning plastic mold for automobile skeleton parts, comprising an upper mold and a lower mold. One side of the profile positioning block is slidingly provided with a profiling side pressing block and a reset assembly, a driving gear is coaxially fixed on the rotating shaft, and a driving rack is set on the profiling side pressing block; the elastic connection on the upper mold is provided with a flexible holding The upper mold is also equipped with a side knife; the internal activity of the profiling side pressing block is provided with a side shaping block; the profiling side pressing block is provided with a reset piece; the profiling positioning block is provided with a shaping die; the overall structure Reasonable and compact, loading and unloading are carried out in the forward direction, which can ensure the precision control of shaping. In addition, the turning and shaping power provided by the single side knife can simplify the mold structure, and the design of flexible pressing head and magnet can ensure Stability of product deflection process.

The invention discloses a self-adaption positioning control system of a bridge detection vehicle. The bridge detection vehicle comprises walking boots and a walking trolley, wherein the walking boots are devices which are used for detecting close contact and fixation between the detection trolley and a bridge; the walking boots comprise a trolley rail, telescopic guide wheels and telescopic fastening hooks; the walking trolley is a driving device of the detection vehicle, and is used for driving the walking boots and the detection vehicle to walk on the upper chord of the bridge; the walking trolley comprises a telescopic main support and walking wheels. The system comprises a walking-boot section changing control module and a walking trolley control module, wherein the walking-boot section changing control module is used for controlling the walking boots to change sections; the walking trolley control module is used for controlling the walking trolley to walk within a target section after the walking boots stop walking and are positioned by the horizontal fastening hooks. Through the adoption of the control system disclosed by the invention, the control with needed accuracy can be guaranteed. The control system has very important and general reference value and very important and general popularizing value for similar engineering machinery and bridge machinery.

The invention relates to an overturning shaping die for an automobile framework part. The overturning shaping die comprises an upper die and a lower die; a profiling positioning block, a rotating shaft and two bearing seats are arranged on the lower die, and a magnet is arranged on the profiling positioning block; a profiling side pressing block and a reset assembly are arranged on the side, located on the profiling positioning block, of the lower die in a sliding mode, a driving gear is coaxially fixed to the rotating shaft, and a driving rack is arranged on the profiling side pressing block;a flexible pressing head is connected to the upper die in an elastic manner; a side cutter is also arranged on the upper die; a side shaping block is movably arranged in the profiling side pressing block in a penetrating mode; a reset piece is arranged on the profiling side pressing block; and a shaping female die is arranged on the profiling positioning block. According to the overturning shaping die for the automobile framework part, the overall structure is reasonable and compact, feeding and discharging are conducted in the forward direction, shaping precision control can be guaranteed, in addition, turning and shaping power is provided through the single-side cutter, the die structure can be simplified, and the stability of the product in the deflection process can be guaranteed through the design of the flexible pressing head and the magnet.

The invention relates to the technical field of railway track engineering, in particular to a combined track slab, a prefabricated slab track system and an installation and construction method thereof. The prefabricated slab track system of the present invention includes a rail row structure, a combined track slab, an isolation layer and a base, The rail row structure is installed on the combined track slab, the combined track slab includes a prefabricated track slab and a limiting boss, the limiting boss is connected to the bottom of the track slab, and the isolation layer is arranged at the bottom of the combined track slab , the base is a cast-in-place base, which is used to fix and support the combined track slab. Since the combined track slab is directly fixed in the cast-in-place base, there is no need to pour the filling layer, so the process of on-site concrete pouring is reduced. It greatly improves the construction efficiency of the ballastless track, reduces the construction cost and saves the construction period.

The invention discloses a knife holder rotating bracket for a linear cutting stapler, which belongs to the field of staplers, and comprises a rotating handle, the top of which is fixedly connected with a knob tube, and the bottom end of the knob tube extends to the inside of the rotating handle , the inner wall of the rotating handle is fixedly connected with a fixed plate near the right side, the inner wall of the fixed plate is fixedly connected with a tube, the outer wall of the rotating handle is fixedly connected with an evenly distributed anti-skid plate near the left side, the rotating The inner wall of the bottom side of the handle and the position corresponding to the knob barrel are fixedly connected with a placement barrel, the inside of the knob barrel is movably inserted with a rotary shaft, the top of the rotary shaft is fixedly connected with a knob, and the bottom end of the rotary shaft is fixedly connected with a The polygonal button column can realize the free rotation angle within the rotatable range of the staple cartridge by twisting and screwing, which increases its application range and makes the use of the stapler more flexible and convenient.

A high-strength steel assembled ship moon pool assembly technology is characterized by comprising the following steps that a concave moon pool is machined and completed on a concave bed-jig, a convexmoon pool is machined and completed on a convex bed-jig, the concave moon pool and the convex moon pool are folded to form the moon pool, the whole moon pool is hoisted and arranged on a ship, the concave bed-jig and the convex bed-jig adopt integrally formed groove faces, any two adjacent faces of a concave groove of the concave bed-jig and a convex groove of the convex bed-jig are perpendicularto each other, and the moon pool adopts high-strength steel. The high-strength steel assembled ship moon pool assembly technology has the advantages that a separated manufacturing manner is adopted, the moon pool is manufactured away from a platform, deformation, caused by internal stress of a large steel structure of the platform, of the moon pool is avoided, and meanwhile the whole precision control of the moon pool is guaranteed through segmented control over the moon pool components.