74results about How to "Reduce the chance of rework" patented technology

The invention discloses a tensioning and positioning round pin, which is provided with at least two pin flaps separated from each other, wherein when the pin flaps of the tensioning pin are folded, the tensioning pin contracts, so that the tensioning pin can easily extend into a positioning hole; and then, the tensioning pin is tightly combined with the positioning hole by unfolding the pin flapsof the tensioning pin, so that no gap exists between the tensioning pin and the positioning pin, the positioning accuracy and stability of a clamp are ensured, the installation accuracy of fittings such as a vehicle door hinge and the like is ensured, one-time installation success rate of a vehicle door is increased, the production efficiency is improved and the fluctuation of product quality is reduced. The invention also discloses a round pin-inserted positioning device. The round pin-inserted positioning device comprises the tensioning and positioning round pin provided with at least two pin flaps which are separated from each other, and an expansion device which is fixedly connected with the root parts of the pin flaps and drive the pin flaps to move along the radial direction. By adopting the round pin-inserted positioning device, the installation accuracy of the vehicle door hinge can be enhanced and the one-time installation success rate of the vehicle door can be increased.

The invention relates to the field of computer assistance, and provides a false tooth restoration scheme design method and system based on data decision. The method comprises the following steps: S1,establishing a dentition condition database and a false tooth restoration scheme database; S2, detecting the conditions of all the current teeth to obtain detected current dentition data; S3, analyzing the data of the flag bits of each tooth number in sequence according to the collected current dentition data, and analyzing all the flag bits to obtain a preliminary denture restoration numbering scheme; And S4, further determining whether secondary data adjustment and scheme alternative need to be carried out or not, and obtaining a final false tooth repair design scheme. According to the technical scheme provided by the invention, the digital logic basis of false tooth design is favorably provided from the perspective of data analysis and decision making; A scheme for automatically designing denture restoration is established through a data decision method, a pre-restoration recommendation scheme is automatically given, clinicians are assisted in scheme making and correction, and the workload of large hospital doctors is reduced.

The invention relates to a belt type automatic counting machine, which is suitable for counting various single-piece products, and comprises two sloping block type material separation devices arranged above a conveying belt, wherein two optoelectronic signal detectors, a PLC(Programmable Logic Controller), a frequency converter and a touch screen are arranged behind the sloping block type material separation devices; the optoelectronic signal detectors are connected with the PLC and are connected with the touch screen through communication cables; the PLC is connected with the frequency converter through an intermediate relay; the frequency converter is connected with a three-phase motor; and the three-phase motor controls the speed of the conveying belt. Compared with the prior art, the invention has the benefits that the automatic counting device for bearing parts can ensure the accuracy of the packaging product quantity, at the same time, reduces the labor intensity of workers to a certain extent, reduces the quantity of the workers, lowers the reworking probability, and improves the working efficiency.

The invention provides an anti-electrostatic heater plate structure applied to photoresist coating of flat-plate displays and developer tables. A glass substrate is arranged on the top surface of a heater plate and is heated up by the same. A plurality of jacking rods capable of jacking upwards from the top surface of the heater plate are mounted in the heater plate. A plurality of fixed jacking pins arranged at intervals are disposed on the top surface of the heater plate and used for supporting the glass substrate on the top surface of the heater plate. Compared with the conventional manner of directly attaching the glass substrate onto the surface of the heater plate, the manner of utilizing the jacking pins to jack the glass substrate by 0.1MM can not only eliminate electrostatic influences of the heater plate but eliminate influences to heat radiation conduction.

The invention relates to a simple method for mounting and locating a seismic isolation support, and belongs to the construction field of the constructional engineering seismic isolation technique. According to the method, firstly, a lower buttress steel reinforcement cage is bound, square neck cup head bolts are connected with main reinforcement of the lower buttress steel reinforcement cage, the elevation and the levelness of a locating pre-buried steel plate are adjusted, the horizontal center position of the locating pre-buried steel plate is adjusted, support connecting bolts, protection rubber sleeves, connecting sleeves and pre-buried anchor bars are then mounted, the errors of the elevation, the levelness and the center position of the locating pre-buried steel plate are retested, and the retested errors are judged, if the retested errors meet domestic industry standard requirements, the pre-buried anchor bars and the main reinforcement of lower buttresses are fixed in a welding mode, and location operation of the seismic isolation support is completed. According to the simple method for mounting and locating the seismic isolation support, the elevation, the levelness and the center position of the locating pre-buried steel plate can be determined precisely, the precision and efficiency of support mounting work are improved, and cost is saved effectively.

The invention provides a paperboard pasting magnetic dispensing structure. The structure comprises a mounting platform, the mounting platform is respectively provided with an adhesive dispensing mechanism, a magnetic sticking structure and a rotary material table structure; the rotary material table structure comprises a rotary motor A, a rotary shaft, four material platforms, the rotating motor A is fixedly arranged on the mounting platform, the rotating shaft is fixedly connected with the power output end of the rotating motor A, the four material platforms are fixedly connected with the upper part of the rotating shaft in a circumferential array manner; a heating rod is arranged in each material table; the magnetism sticking structure comprises a support A, a rotating structure, a lifting structure, a material storage cylinder and a magnetic pressing structure, the rotating structure comprises a rotating motor B, a rotating table and a U-shaped connecting arm; the lifting structure comprises a lifting motor A, a lifting shaft A and a pressing block; the magnetic sticking structure comprises a lifting motor B, a lifting shaft B, a mounting plate and a magnetic pressing arm. According to the paperboard pasting magnetic dispensing structure, after the magnet is attached to the glue, the magnet is immediately pressed, the heating rod is added for heating, the drying speed of the glue is improved, the situation that the magnet is separated is effectively avoided, and the reworking probability is reduced.

The invention discloses an automatic SF6 gas charging system and method of GIS equipment. The automatic charging system comprises a charging control unit, automatic charging of the GIS equipment is realized and charging conditions are monitored automatically, then the system stops automatically after charging is completed, labor and material consumption is reduced, furthermore, the working efficiency of SF6 gas charging in the GIS equipment is improved effectively, by cooperation of a density relay and a body electronic pressure gauge, whether an alarming contact and a latching contact of thedensity relay act reliably or not can be verified in the charging process through the monitoring result of the body electronic pressure gauge, a working process is simplified while it ensures that theGIS equipment is used safely and reliably, and the efficiency is improved indirectly; according to the automatic charging method, the GIS equipment is automatically charged with SF6 gas by successively carrying out pipe vacuumizing, SF6 gas charging and pressure drop detection operation, the process is simple, the method is convenient and speedy to control, the reliability of the charging processis ensured fully, and thus, the stable performance and safe and reliable use of the GIS equipment are ensured.

The invention discloses an electronic power switching element IGBT high frequency model parasitic parameter acquiring method. The method includes the steps that high frequency EMI characters of a switching element in an actual circuit are compared with high frequency EMI characters of a switching element in an artificial circuit, optimization and adjustment are conducted on switching element model parasitic parameters of the established artificial circuit by using particle swarm optimization, and the high frequency EMI characters of the switching element in the artificial circuit reach unanimity with the high frequency EMI characters of the switching element in the actual circuit. By means of the method, a high-precision and high-performance artificial model can be established, the research and development of the actual circuit can be guided effectively, the re-work probability is greatly lowered in the process of researching and developing the actual circuit, the production cycle is shortened, and the production cost is lowered.

The invention relates to a welding manufacturing method of an electron beam sleeved with a large diameter T-shaped ring. The welding manufacturing method can replace currently-adopted sleeving in a large diameter T-shaped ring prepared by traditional welding methods such as metal argon arc welding or argon tungsten arc welding. A boss with the same width with a rib plate is machined on a face plate, it is guaranteed that an assembling gap between the face plate and the rib plate are welded through the electron beam, and the problems that in the prior art, when welding of T profile sleeved with the large thickness ring adopts the traditional welding methods such as metal argon arc welding or argon tungsten arc welding to conduct fillet seam welding, the welding efficiency is low, welding deformation is large, welding dimension precision is difficult to accurately guarantee, the stress concentration condition of a fillet seam is serious, and thus structure instability damage is prone to occurring are effectively solved.

The invention discloses a cleaning degreaser for electroplating. The cleaning degreaser is characterized by consisting of the following raw material components in parts by weight: 5-8 parts of an anionic surfactant, 3-5 parts of a non-ionic surfactant, 8-10 parts of alkyl phenol polyoxyethylene ether, 15-20 parts of sodium carbonate, 17-23 parts of sodium metasilicate, 15-18 parts of a metal anti-rusting agent and 2-5 parts of a cleaning corrosion inhibitor. The cleaning degreaser disclosed by the invention, which is prepared from the raw materials, is not only convenient to use but also can be used for rapidly removing grease, polishing paste, fingerprint and like stains on the surface of a workpiece; and meanwhile, the cleaning degreaser can be used for removing an oxide layer on the surface of a copper layer and is quite excellent in cleaning effect; labor is saved and rework rate is reduced, and meanwhile, the quality and the service life of the product are improved.

The invention discloses an automatic pulp removing device special for blue printcloth. A blue printcloth preprocessing device, a blue printcloth bearing disc and a pulp removing device are connected in a matched mode and are used in a cooperating mode, an industrial automation scheme replaces a traditional blue printcloth manual pulp removing process, the fact that the quality of blue printcloth quality is not changed is guaranteed, meanwhile, production efficiency is greatly improved, and labor cost is saved. Two end frames of a beating wheel are arranged on a height adjusting locating frame, according to different varieties of blue printcloth and model number features, through the height adjusting locating frame, the height of the beating wheel is adjusted, preprocessing effect is improved, capacity optimization is achieved, and the probability of reworking is reduced. Locating wheels are further included and are movably arranged on the front sides of the tops of an auxiliary wheel and a driving wheel. The position of the blue printcloth can be well limited through the locating wheels. Shrinking of a blue printcloth body in the locating frame caused by beating is avoided, and preprocessing efficiency is lowered.

The invention discloses a laser measurement correction system and method for an external wall of a high-rise building. The system comprises a control unit, a standard measurement correction unit and aplurality of measurement correction units, wherein the standard measurement correction unit and the measurement correction units are mounted on the same plane and are mutually networked to form a grid structure; the structure of the standard measurement correction unit is the same as that of each measurement correction unit; each unit comprises a cross-shaped structure main body, an adjusting rodand a fixed frame; each cross-shaped structure main body comprises two laser emitting devices, two laser receiving devices, a signal sending module and a horizontal pointer, wherein the two laser emitting devices are arranged at positions of two adjacent cross-shaped tips on the cross-shaped structure main body respectively, and the two laser receiving devices are arranged at positions of the other two adjacent cross-shaped tips on the cross-shaped structure main body respectively. The laser measurement correction system disclosed by the invention has the advantages that the measurement precision is high, the labor cost of construction can be effectively reduced, the system can be circularly utilized for a plurality of times and energy saving and environment protection are realized.

The invention discloses a chemical industrial control instrument with a comprehensive information management system and a system thereof, relates to the technical field of chemical industrial control instrument management, and solves the technical problem that in the prior art, raw materials cannot be analyzed, so that a chemical process cannot be safely carried out. The data of raw materials participating in the reaction are analyzed by a raw material analysis unit, and the corresponding analysis coefficient Xi of the raw materials participating in the reaction is obtained through the formula; if the corresponding analysis coefficient Xi of the raw materials participating in the reaction is less than the corresponding threshold value of the analysis coefficient, the corresponding raw materials can be judged as unqualified and marked as unqualified raw materials, then an unqualified signal is generated, and the unqualified signal and unqualified raw materials are sent to a controller; and the raw materials are analyzed, so that the chemical process can be safely carried out, and meanwhile, the reworking probability is reduced.

The invention relates to an automatic plate roller loading and unloading device of an electric carving machine. The automatic plate roller loading and unloading device of the electric carving machine comprises a plate roller loading and unloading mechanism, a crane, a movable guide rail trolley and a controller, wherein the plate roller loading and unloading mechanism is fixed to the electric carving machine; the controller is respectively connected with the plate roller loading and unloading mechanism, the crane and the movable guide rail trolley; the controller controls the plate roller loading and unloading mechanism to put plate rollers to be carved into the curving position of the electric curving machine; the electric curving machine curves the plate rollers; after the plate rollers are curved, the controller controls the plate roller loading and unloading mechanism to lift the plate rollers; the controller controls the crane to move the lifted plate rollers to the movable guide rail trolley; the controller controls the movable guide rail trolley to transport the plate rollers to the assigned position. Compared with the prior art, the automatic plate roller loading and unloading device of the electric curving machine has the advantages of being high in safety performance, high in working efficiency and the like.

The invention discloses a display screen positioning detecting device and method. The display screen positioning detecting device comprises a base (1), a display screen storing mechanism (2) detachably arranged on the base (1) and a pressing block mechanism (4) arranged above the display screen storing mechanism (2). The display screen positioning detecting device further comprises a detecting mechanism which can conduct position collection on the display screen storing mechanism (2) and a display screen (3). Through the design, the parallelism and the center contact ratio of the display screen storing mechanism and the display screen which are finally well assembled are effectively monitored and determined, the product quality is greatly improved, and the reworking possibility is decreased; and the operation method is simple, reinforcing and detaching are convenient, and cost is low.

The invention relates to a building wall offset detection device and discloses a detection device capable of determining the offset of the specific height of a wall and reminding workers in time when the offset of the wall reaches a threshold value. The device is characterized in that a fixed rack seat is arranged on the base, the longitudinal measuring ruler is arranged on the fixed rack seat, an anti-skid pad is arranged at the bottom of the base, multiple sets of racks are arranged in the fixed rack seat, the transverse measuring ruler is arranged on the measuring sliding cylinder, the measuring sliding cylinder is hollow, and one end of the measuring sliding cylinder is fixedly connected with the handle through a connecting block; the other end of the measuring sliding cylinder penetrates through the fixed rack seat and is fixedly connected with the roller support frame; a handle is provided with a sweat absorbing pad, a longitudinal measuring pointer is arranged on a connecting block, the two ends of the measuring roller are connected with the two sides of the roller supporting frame through bearings, through holes are formed in the front side wall and the rear side wall of the measuring sliding cylinder respectively, and the two sound alarms are arranged on the left inner wall and the right inner wall of the measuring sliding cylinder respectively.

The invention relates to a method for welding an outgoing line terminal of a nuclear power half-speed turbine generator. The method solves the problem of the prior art that since the process of manual metal-arc welding or gas shielded arc welding or the like is adopted for welding an outgoing line terminal, the welding deformation is serious, the welding size is difficult to guarantee, welding lines are difficult to form, the welding quality is poor and the welding is difficult in passing flaw detection at a single time. The method comprises the following steps: 1, preparing materials; 2, scribing; 3, assembling; 4, performing spot welding; 5, installing a tool fixture; 6, preheating before welding; 7, performing metal-inert gas welding (MIG) on a workpiece to be welded, wherein the welding current is 370-420A, the welding voltage is 24-34V, the welding speed is 350-500 mm/min, the protection gas is high-purity argon having the purity of more than 99.996%, and the flow rate of gas is 10-15 L/min; 8, performing modification welding; and 9, performing non-destructive inspection. The method is used for welding an outgoing line terminal of a nuclear power half-speed turbine generator.

The invention discloses a method for extracting parasitic parameters of a silicon carbide inverter, which comprises the following steps of obtaining physical structure parameters of the silicon carbide inverter, and thereby establishing a three-dimensional model of the inverter, thereby obtaining a basic three-dimensional model; setting the material properties of conductor, current inflow positionand current outflow position in the basic three-dimensional model; simulating circuit operation to extract parasitic inductance and parasitic resistance; setting the material properties of the conductor in the basic three-dimensional model, and setting the voltage difference between the positive DC bus and the reference ground, the negative DC bus and the reference ground, and the voltage difference between the middle point of each bridge arm of the inverter and the heat sink respectively; and simulating circuit operation to extract parasitic capacitance. The methd of the invention can accurately extract the parasitic parameters of the inverter through a software simulation method in the design process of the inverter, so as to reduce the production cost and shorten the manufacturing period.

The invention discloses a welding supporting plate for printed circuit boards and relates to the technical field of electronic assembly. The four sides of an outer supporting frame are provided with adjusting scales. A plurality of movable pressing devices are arranged on the inner side of the upper side and the inner side of the left side of the outer supporting frame. A transverse supporting beam and a longitudinal supporting beam are movably connected with the outer supporting frame through a rail on the inner side of the outer supporting frame and provided with fixed pressing devices. The welding supporting plate is simple in structure and convenient to operate, solves the clamping problem in the use process, and can be used for the printed circuit boards of different sizes, improve the processing quality, increase the rate of finished products, lower the probability of repair and rework and improve the production efficiency.

The invention particularly relates to pneumatic forming pin shearing and coating removing integrated equipment which belongs to the technical field of pin correction processing devices. The equipmentcomprises a bottom frame, a main cylinder, an auxiliary cylinder, a gantry, a top frame, a contact plate and a side frame, the top of the bottom frame is fixedly connected with the main air cylinder,the auxiliary air cylinder and the gantry through screws. According to the pneumatic forming, pin shearing and coating removing integrated equipment, the purposes of straightening and forming can be achieved; the limiting is facilitated, a cutting plate controlled by an air cylinder is matched to move; force is applied to the cutting tool carrying a cutting head and a die groove in a die plate; the shearing purpose is achieved; copper wire heads subjected to pin shearing fall into a waste box along a transfer groove; the recycling performance is good, potential safety hazards of waste materials to operators is reduced, at the same time, the side frame is matched, a grinder driven by a built-in motor can be matched to conduct coating removing work on outer portions of pins, and the equipment has the effects of pin limiting, cutting, recycling and coating removing, is high in integration degree, and effectively improves the overall processing efficiency.