25results about How to "Reduce processing defects" patented technology

The invention relates to the technical field of machine tool positioning, in particular to an integrated machining workpiece positioning method of a turning-milling composite machine tool, which comprises the following steps of: really capturing geometrical characteristics of a workpiece through a high-resolution image acquisition and deep learning algorithm, and establishing an accurate point cloud model and a mathematical model, so that the workpiece is positioned more accurately in the subsequent machining process; machining defects caused by positioning errors are obviously reduced; on the basis of the machining requirement of a current workpiece, proper clamping force and a proper clamping mode are designed, so that the workpiece can be kept stable in the machining process, workpiece displacement or damage caused by improper clamping is reduced, and then the machining quality is improved; and meanwhile, a dynamic monitoring and feedback mechanism is introduced, the deviation between the actual clamping position and the target position of the workpiece can be judged in real time, corresponding adjustment is made to adapt to displacement or deformation possibly occurring in the machining process, and continuous and accurate positioning of the workpiece is ensured.

The invention relates to the technical field of dental repair materials, in particular to a nano zirconia ceramic material for dental repair and a preparation method thereof. The preparation method comprises the following steps: S1, preparing nano zirconium oxide powder; s2, preparing composite spherical powder; s3, preparing a green body; and S4, high-temperature sintering: unpacking the hot-pressed green body, and performing high-temperature sintering to obtain the nano zirconia ceramic material for dental restoration. According to the present invention, the mechanical property, the biocompatibility, the antibacterial property, the aesthetic property and the like of the prepared nano-zirconia ceramic material for dental restoration are comprehensively improved through a variety of modification means and optimization processes, and the prepared nano-zirconia ceramic material becomes the ideal dental restoration material.

The invention discloses a self-adaptive variable-diameter spiral groove numerical control machining method and device based on wood curvature perception, and belongs to the technical field of wood spiral groove machining. The method comprises the following steps that S1, wood feeding and positioning are conducted, square timber to be machined is fixed through a self-adaptive clamp, and it is ensured that the axis of the square timber is aligned with the machining standard; s2, real-time data collection is conducted, specifically, the front face, the back face and the two side faces of the batten are scanned through multiple sets of laser displacement sensors, the curvature and moisture content data of the wood are collected in a high-precision mode through the multiple sets of laser displacement sensors, and a customized tool path matched with irregular deformation of the wood is generated in combination with a least square method curvature fitting algorithm; and meanwhile, a cutting pressure dynamic compensation mechanism is matched, the cutting pressure is stabilized within a reasonable range, heat expansion and cold contraction deformation of the groove profile is avoided through composite cooling shaping after machining, finally, the groove profile machining precision reaches + / -0.05 mm, the problems that traditional fixed parameter machining is poor in adaptability and low in size consistency are thoroughly solved, and the follow-up assembly difficulty is greatly reduced.

The present application relates to a kind of production methods of double-layer alloy composite seamless pipe.The outer layer material of double-layer alloy composite seamless pipe is low-carbon steel, the inner layer material is nickel-based alloy, outer layer alloy bar material is continuous casting billet or rolling blank, and inner layer alloy bar material is forging blank.The production steps are: (1) blank preparation; (2) upsetting; (3) blank machining; (4) hot expansion; (5) hot extrusion; (6) heat treatment; (7) surface treatment; (8) cold rolling; (9) finishing treatment.The blank preparation process includes: (1) theoretical calculation; (2) blanking; (3) electroplating; (4) blank assembly; (5) head and tail pad welding.The double-layer alloy composite seamless pipe produced by the present application has firm combination of the inner and outer layers of alloy, reduces the defects of extrusion delamination, the outer layer alloy has high strength, the inner layer alloy has good corrosion resistance, improves the yield rate of processing defects, and reduces material cost.

The invention discloses a processing method for improving picosecond cutting board warping of an FPCOIL product, which comprises the following steps that a circuit board containing the product and a laser carrier capable of containing the circuit board are provided, and the laser carrier comprises a lower jig and an upper jig; the lower jig is placed on a working table; the circuit board is placed in the lower jig, and then the upper jig is placed at the upper end of the lower jig; the working table board adsorbs a circuit board through a lower jig, and a plurality of exhaust holes are formed in the lower jig; and cutting the circuit board by using a picosecond laser. The structure that the lower jig and the upper jig are fixed in a magnetic attraction mode is adopted for improving warping of a product board, the lower jig is placed on the working table, the whole circuit board is placed in the lower jig, a plurality of exhaust holes distributed in the periphery of the product are formed in the lower jig, effective attraction of the working table to the circuit board is facilitated, and the follow-up laser cutting precision is improved; and the upper jig is pressed on the edge area of the circuit board, so that the warping of the product can be improved.

This utility model relates to the field of stainless steel water meter casing stacking technology, and discloses a stacking process structure for stainless steel water meter casings with a one-inlet-four-outlet planar water inlet and outlet, including a main gating system. A gating riser is fixedly connected to the top of the main gating system. Multiple branch gating systems are evenly distributed on both sides of the main gating system. A central flange annular opening is fixedly connected to the side of each branch gating system away from the main gating system. A concealed riser is fixedly connected to the top of the central flange annular opening. An inlet / outlet assembly is provided outside the central flange annular opening. The inlet / outlet assembly includes multiple water meter casing inlet pipes, one side of which is fixedly connected to one side of the central flange annular opening. In this utility model, the parallel stacking structure significantly improves cutting efficiency, reduces processing defects, lowers costs, and automatically disintegrates the sand shell after mold cooling, simplifying the casting separation process, improving production efficiency and product quality. Ultimately, the casting has high density and superior mechanical properties.

The utility model discloses an automatic tapping machine belongs to thread processing equipment technical field, including frame, control box, clamping unit, tapping unit and discharge unit, clamping unit adopts four station rotation structure, and four stations are placed position, waiting position, processing position, discharge position in turn along the circumference counterclockwise, realizes the loading and processing area isolation, tapping unit sets up correspondingly processing position, and completes tapping through the coordinated drive of feed motor and main shaft motor tap, and discharge unit realizes the automation of moving out and receiving workpiece after processing through the cooperation of electromagnet and cylinder. The utility model discloses through multistation parallel and automatic discharge, completely avoid manual approach processing area, and safety significantly improves, and simultaneously realizes the loading, processing, unloading synchronous operation, and every fixture can clamp two workpieces, and the processing efficiency is improved by more than 50%, and adapts the batch processing demand of thread plate.

The application provides a laser processing crystal system and a method thereof. The laser processing system comprises a loading module for loading a crystal and moving the crystal, a conveying module for moving the crystal between a cutting station and a slicing station through the loading module, a laser generating module for emitting a slicing laser beam, an optical path adjusting module for irradiating the slicing laser beam on the crystal at the cutting station and scanning the crystal to form a modified layer in the crystal, a wafer separating module for separating a wafer from the crystal through the modified layer, and a control module for controlling the optical path adjusting module and the loading module to move coordinately when the optical path adjusting module controls the slicing laser beam to scan the crystal, so that the slicing laser beam scans the crystal at a constant speed. The loading module, the conveying module, the laser generating module, the optical path adjusting module and the wafer separating module are electrically connected to the control module. The application can improve the quality of the crystal slicing.

The invention discloses high-pressure and high-temperature oil pipe rubber for a power steering system and a preparation method of the high-pressure and high-temperature oil pipe rubber. The high-pressure and high-temperature oil pipe rubber for the power steering system comprises the following raw materials in parts by weight: 80-120 parts of nitrile rubber, 4-6 parts of zinc oxide, 6-10 parts of magnesium oxide, 4-9 parts of an anti-aging agent, 1-2 parts of microcrystalline wax, 1-2 parts of stearic acid, 3-5 parts of a dispersing agent, 2-3 parts of an adhesive, 4-6 parts of coumarone, 2-8 parts of a vulcanizing agent, 1-3 parts of a vulcanizing aid, 5-20 parts of a plasticizer and 70-120 parts of filler. The nitrile rubber, the plasticizer and the selected anti-aging agent are adopted, so that the material keeps excellent performance at high temperature and in an oil medium, and the service life of the oil pipe is prolonged. The plasticizer and the filler are reasonably proportioned, so that the material has enough mechanical strength while keeping high flexibility, and can bear mechanical stress in a high-pressure environment. The preparation method is clear in steps, simple and convenient to operate and suitable for large-scale production. The raw materials which are easy to obtain and low in cost are adopted, and the production cost can be effectively reduced.

This utility model relates to the field of aluminum single-panel production technology and discloses a rapid curing device for water-based coatings on aluminum single-panel curtain walls. The device includes a curing box, with hinges fixedly connected to the outside of the curing box, and a box door fixedly connected to the outside of the hinges. A four-corner fixing mechanism is fixedly connected to the bottom inside the curing box, and a heat dissipation and exhaust mechanism is fixedly connected to the outside of the curing box. The four-corner fixing mechanism includes a processing table, with its bottom fixedly connected to the bottom inside the curing box. A drive assembly and a guide assembly are fixedly connected to the inside of the processing table. In this utility model, the four-corner fixing mechanism uses a drive motor and a cross-shaped rotating block to drive the four-corner clamps to clamp the four corners of the aluminum single-panel. Anti-protrusion suction cups provide reinforcement, achieving stable fixing, preventing displacement and protrusion, ensuring accurate positioning, reducing contact area, avoiding indentation damage, improving curing quality, and reducing processing defects.

The utility model relates to an automatic feeding and discharging device of a resin lens caravan rough grinding machine, and belongs to the technical field of lens automatic production. Comprising a rough grinding machine workpiece clamping jaw, a precise lens data inputting and feeding mechanism and a precise and automatic lens feeding and discharging mechanism, and the precise lens data inputting and feeding mechanism is fixedly connected to one side of the top of the precise and automatic lens feeding and discharging mechanism through a conveying belt connecting piece; the precise lens data inputting and feeding mechanism comprises a conveying belt frame arranged in the horizontal direction, a motor is installed on the side face of one end of the conveying belt frame, the motor is in transmission connection with a synchronous belt mechanism rotationally arranged on the surface of the conveying belt frame in a sleeving mode, and a third sensor is installed on the side face, away from the motor, of the other end of the conveying belt frame. A bar code input device is installed on the opposite side wall of the connecting position of the conveying belt frame and the precise and automatic lens feeding and discharging mechanism, and the left side and the right side of the bar code input device are respectively provided with a set of first sensors and first blocking air cylinders and a set of second sensors and second blocking air cylinders.

The invention discloses an adjustable pulse waveform solid laser control method, and particularly relates to the technical field of laser control, and the method comprises the steps: building a solid laser state monitoring model through obtaining the output power information, external environment information, optical element aging information and control response information of a solid laser; the actual operation state of the solid-state laser is evaluated, potential faults and hidden dangers existing in the solid-state laser are effectively identified, and when the potential faults and hidden dangers exist in the solid-state laser, various parameters of pulses are dynamically controlled by adopting a fuzzy PID control algorithm in combination with the temperature rise rate of a heat affected area. The frequency of frequent pulse adjustment caused by the unstable operation state of the laser is effectively reduced, meanwhile, the temperature rising rate of a heat affected area is considered when pulse parameters are adjusted, heat energy accumulation is effectively controlled, excessive expansion of the heat affected area is prevented, machining defects caused by heat damage are reduced, and the defective rate is reduced.

The application discloses a kind of based on low temperature embrittlement cooperates prefabricated mark guide plate stamping equipment, including base and the shelf plate of being movably arranged on base, the holding module for being clamped and positioning outside the processing area of tensioning the plate to be processed of outside the plate to be processed is arranged between the base and shelf plate, and the groove prefabricated module for processing V-shaped guide groove to outside the plate to be processed preset fracture zone, the low-temperature cooling module for the plate after being processed by groove prefabricated module is arranged on the side of base, to reduce the temperature of plate and maintain low-temperature atmosphere by being used for rapid cooling, and the control cabinet for being respectively communicated connection control with holding module, groove prefabricated module and low-temperature cooling module.The application solves the problem that traditional stamping process handles high-strength alloy plate and the outer ring component of difficult deformation material, because prefabricated mark processing, low-temperature treatment and stamping forming link discrete layout lead to parameter matching, low-temperature embrittlement uncontrollable, difficult to realize the problem of accurate control of fracture surface quality.

The invention relates to the technical field of metal processing, and discloses hemming equipment for metal sheet production and processing, which comprises a support, a working platform is fixedly mounted on the outer side of the support, and a workpiece sheet is arranged on the outer side of the support. A power assembly, a cleaning assembly, a triggering assembly and a stabilizing assembly are arranged on the outer side of the support, and the power assembly comprises a bottom shell. In order to further improve the production efficiency and the machining quality, the hemming equipment for metal sheet production and machining is provided with a power assembly, and the power assembly is matched with a bottom motor to drive a bottom long rod to rotate, so that a bottom main transmission roller and a bottom main transmission wheel rotate; the bottom transmission chain drives the bottom auxiliary transmission wheel and the bottom auxiliary transmission roller to rotate, and the top motor drives the top main transmission roller and the top auxiliary transmission roller to rotate in the same way, so that the contact area with the metal sheet is increased, and stable conveying of the sheet is ensured.

The present invention provides a method for maintaining a uniform light spot on a laser cladding processing surface and a laser cladding processing head, wherein a deviated lens is provided, the deviated lens is a focusing lens, and then a QBH output head is installed on the left side of the deviated lens, and a processing workpiece is on the right side; the QBH output head and the processing workpiece are both located on a straight line where a line segment after the focus on both sides of the deviated lens is connected; wherein the distance L between the QBH output head and the deviated lens is ≤ D / tgθ, and is greater than the distance from the focus of the deviated lens to the deviated lens, wherein D is the lens aperture, and θ is the divergence angle of the QBH output laser. In the present invention, since the light spot on the workpiece surface is still a flat-top light spot, during the cladding process, the powder is heated evenly, the processing defects are small, and only slight polishing is required to meet the processing requirements, thereby improving the processing quality and precision while ensuring the processing efficiency, and greatly reducing the cost of processing consumables.

The invention relates to the technical field of polyester composite materials, in particular to a polyester composite material, a preparation method thereof and a polyester product. The polyester composite material disclosed by the invention is prepared from the following components in percentage by mass: 0.001 wt%-0.2 wt% of an inorganic lubricant, 0.001 wt%-0.4 wt% of an organic lubricant, 0.001 wt%-0.1 wt% of a toughening agent and the balance of a polyester matrix, the inorganic lubricant comprises modified silicon dioxide, and the surface of the modified silicon dioxide is modified with a hydroxyl group and a phenyl group; the organic lubricant comprises a distilled monoglyceride lubricant, and the toughening agent comprises a styrene-butadiene block copolymer. According to the invention, the inorganic lubricant, the organic lubricant and the flexibilizer are adopted to modify the polyester matrix, and through mutual cooperation and synergistic effect of all the components, the polyester composite material has excellent fluidity, transparency, lubricity, toughness and antistatic property at the same time.

The invention provides high-hydroxyl quartz glass as well as a preparation method and application thereof. The axial hydroxyl content difference value of the quartz glass is smaller than or equal to 100 ppm, the radial hydroxyl content difference value of the quartz glass is smaller than or equal to 100 ppm, the quartz glass has uniform hydroxyl distribution in the axial direction and the radial direction, the uniform hydroxyl distribution is beneficial for reducing the cracking or damage risk of the quartz glass caused by local stress concentration, the risks of thermal stress and thermal shock can be reduced, and the service life of the quartz glass is prolonged. The chemical stability of the quartz glass can be improved, so that the local corrosion or degradation phenomenon is reduced; and the predictability and the consistency of the material can be improved, so that the processing defects are reduced, and the product percent of pass is improved. Therefore, the quartz glass disclosed by the invention can be applied to the high-tech fields of special experimental instruments, aerospace, ultraviolet energy transfer and nuclear power radiation resistance.

The invention relates to the technical field of deep hole drilling machines, in particular to an ultrasonic numerical control deep hole drilling machine. The technical scheme comprises a machine body; the guide rail is mounted on the machine body; the workpiece fixing module and the drilling module are slidably mounted at two ends of the machine body through guide rails; the first limiting module is installed on the machine body and located between the machine body and a first limiting sleeve is embedded in the first limiting module. The vertical plate is installed at the end, close to the drilling module, of the machine body. The guide rod is mounted on the machine body through the first limiting module and the vertical plate; the second limiting module is slidably installed on the guide rod and locked and fixed through a bolt, and a second limiting sleeve is embedded in the second limiting module. The hydrodynamic force and cooling system is connected between the drilling module and the workpiece fixing module, and when the drilling module conducts feeding motion, the system drives the workpiece fixing module to move oppositely and conveys cooling liquid to a machining part. Accurate limiting is achieved through the double limiting modules, the fluid system synchronously drives workpieces to feed oppositely and convey cooling liquid, and the drilling precision and efficiency are effectively improved.

The utility model relates to the technical field of plastic bottle cap processing, in particular to a feeding mechanism with a dust removal function for plastic bottle cap processing, which comprises a mounting support plate, a conveyor belt is movably mounted in the middle of the mounting support plate, a support frame is fixedly mounted at the top end of the mounting support plate, and a discharging hopper is fixedly mounted at the top end of the support frame. According to the feeding mechanism with the dust removal function for plastic bottle cap machining, by arranging a feeding limiting mechanism, the limiting conveying problem of bottle caps with different diameters is effectively solved, a PLC controls a servo motor to be started, the servo motor drives an adjusting lead screw to rotate, and due to the fact that two positioning screw blocks are engaged with the adjusting lead screw in a threaded mode, when the adjusting lead screw rotates, the adjusting lead screw is not prone to falling off. The two positioning screw blocks can move face to face or back to back along the adjusting lead screw, then the supporting limiting sliding blocks are driven to slide in the positioning through grooves, meanwhile, the limiting baffles are made to move, the distance between the two limiting baffles is flexibly adjusted according to the diameters of bottle caps, and accurate limiting of the bottle caps with different diameters is achieved.

The invention discloses a magnetorheological polishing method for a NiP modified reflector, and the processing method comprises: preparing a NiP modified layer, and performing ultra-precision turning and magnetorheological polishing shaping processing on the NiP modified layer until the index requirements are met. In the magnetorheological polishing method for the NiP modified reflector of the invention, ultra-precision turning and magnetorheological polishing are used to process the NiP modified reflector blank workpiece, which can not only effectively eliminate the surface defects generated during the processing of the NiP modified reflector blank workpiece, but also be beneficial to improving the processing efficiency, and at the same time can improve the surface shape accuracy and surface quality of the processing, which is beneficial to processing the NiP modified reflector blank workpiece into a high-quality NiP modified reflector, and has the advantages of few processing defects, high processing quality, high processing efficiency, good repeatability, etc., which is of great significance for promoting the wide application of NiP modified reflectors in optical fields such as visible light bands and shorter wavelength bands.

The utility model relates to coiled material processing stamping technology field, and disclose a kind of stamping die for coiled material processing, comprising: basic support component, comprising: the bottom plate of horizontal arrangement, the bottom plate is rigid flat structure, for carrying the weight of entire device;U plate, fixedly installed in the top of bottom plate, its opening is set to upward, for providing installation support for lower mould;Automatic feeding assembly, comprising: annular frame, is set to the top of U plate, for guiding with driving wheel to coiled material steel plate;The stamping die for coiled material processing realizes automatic feeding, improves operation efficiency;Through motor, runner two, transmission belt, runner one and the automatic feeding assembly of driving wheel composition, without manual push coiled material steel plate, can automatically drive coiled material along preset direction stable movement to lower mould, reduce manual intervention, reduce manpower cost, while avoiding instability of manual feeding, substantially improve the overall operation efficiency of feeding and subsequent stamping.

The application discloses a cable processing device and a cable processing method, and relates to the technical field of cable processing, which comprises a closed control cabinet, supporting legs are fixedly installed at the four corners of the bottom of the closed control cabinet, a switch plate is arranged on the supporting legs, a handle is fixedly installed on the front side of the switch plate, and the closed control cabinet is characterized in that: inner ring plates are concentrically and rotatably installed at the two ends of an inlet and an outlet on the inner side of the closed control cabinet, and the two inner ring plates are fixedly connected through connecting rods. In the irradiation processing process, the multiple sets of centering rollers staggered and circumferentially distributed in cooperation with the irradiation lamps are in full contact with the outer surface of the cable, the cable is limited from multiple directions, and the cable is stably kept at the center position concentric with the inner ring plates, so that the problems of radial deviation, movement or swing of the cable in the continuous traction and conveying process are effectively avoided, the distance between the surface of the cable and the irradiation lamp is kept constant, the consistency of the irradiation dose and the processing stability are further improved, and the technical blank of the existing equipment without a synchronous centering mechanism is filled.

The application discloses a cylindrical lithium battery roll groove sealing structure and a sealing process, and relates to the technical field of lithium battery packaging. The cylindrical lithium battery roll groove sealing structure comprises a battery shell of a cylindrical lithium battery, the battery shell is sequentially provided with a pole flow disc, a diaphragm and a steel cap from the lower opening end, the opening end of the battery shell is provided with a roll groove, the inner wall of the roll groove is provided with a sealing ring, the diaphragm and the steel cap are both limited in the sealing ring, and the pole flow disc is located below the diaphragm. The application optimizes the sealing structure design, improves the width of the opening end of the battery shell to > 4 mm, retains a flat platform structure of > 2 mm, simultaneously reduces the inner diameter of the roll groove by 1-2 mm compared with the conventional size, solves the technical pain point that the positive and negative electrodes cannot be welded on the same side due to the narrow edge covering and the absence of a flat platform in the traditional roll groove sealing, makes the mature and low-cost roll groove sealing process adapt to large cylindrical battery production again, and greatly reduces the overall production cost of the large cylindrical battery.

This invention relates to the field of additive manufacturing technology, specifically to an optical expansion platform, additive manufacturing equipment, and manufacturing method thereof. The platform includes a drive system with multiple output ends, the movement directions of which include a first direction and / or a second direction, the first direction being perpendicular to the second direction. The multiple output ends are capable of synchronous and independent movement. Optical devices are configured as multiple optical path mechanisms, each disposed on one of the output ends of the drive system. The output ends of this application can move synchronously to achieve overall collaborative scanning of large areas of large-size parts, improving processing efficiency, and can also move independently to meet the specific or differentiated processing needs of parts in certain areas. This collectively overcomes the problems of poor quality in traditional large-format scanning and defects in splicing multiple small-format parts, achieving high-quality one-time forming of large-size parts.

The invention discloses processing equipment for a 6G communication filter circuit board, and relates to the technical field of printed circuit board processing, the processing equipment comprises a machine body, and the top of the machine body is provided with a cutting mechanism and a cooling and chip removing structure; and the cooling and scrap removing structure comprises a mounting block detachably mounted at the bottom of the cutting mechanism, a treatment cover, a cooling assembly, a scrap removing assembly and a filtering assembly, the cooling assembly comprises an air pump mounted at the bottom of the mounting block, the output end of the air pump is fixedly connected with an air conveying pipeline, and one side of the air conveying pipeline is fixedly connected with an air inlet pipe. According to the processing equipment for the 6G communication filter circuit board, a surrounding air nozzle of the cooling assembly is matched with a spiral air pipe, cooling air flow covering uniformly is formed, and local high-temperature damage is avoided; and meanwhile, chippings are gathered through spiral airflow, negative pressure adsorption of the chipping removing assembly and interception of the filtering assembly are matched, the chippings are thoroughly removed, diffusion and blockage are prevented, traditional machining defects are effectively overcome, and the product percent of pass is increased.