19results about How to "Reduce product defect rate" patented technology

The invention provides a prediction control method and system for friction stir welding deformation, and relates to the technical field of friction stir welding. The method comprises the steps that the diameter of a stirring needle and the diameter of a shaft shoulder are input into a thermal deformation function, and a shrinkage difference value of a welding stirring head is obtained; according to the shrinkage difference value, the thickness of each to-be-welded part and the length of each to-be-welded part, the welding warping amount of each to-be-welded part is determined; according to the welding warping amount of each to-be-welded part and the size chains of the multiple to-be-welded parts, the welding deformation amount of each welding seam of the target part relative to the clamp datum plane is predicted; according to the welding deformation amount of each welding seam of the target part, the height of the base plate and the clamp of the part to be welded are adjusted, the welding deformation amount to be generated is preposed, and when welding is completed, the welding deformation amount generated by cooling is counteracted with the opposite preposed deformation amount, so that the final part achieves higher flatness, and the production efficiency and the welding quality are improved.

The utility model provides an embedded and assembled air cooling box, and belongs to the technical field of air cooling boxes, the embedded and assembled air cooling box comprises a box body, a plurality of cooling fins are arranged in the box body, each cooling fin comprises a cooling fin body, and the top end and the bottom end of each cooling fin body are provided with a top end embedded part and a bottom end embedded part respectively; every two adjacent cooling fins are connected through the top end inlaying part and the bottom end inlaying part respectively, and the box body comprises four side plates which are connected in a square shape. The embedded grooves and the embedded protruding blocks are arranged on the cooling fins, a traditional welding mode is replaced by embedded splicing, the two or more cooling fins cannot automatically fall off through the embedded design under the condition that no external force exists, the welding stability of the cooling fins and the box body is improved, and the cooling fins cannot cause the problems of deformation, falling off and the like caused by welding; the box body is processed in a split manner, so that the processing difficulty and the product reject ratio are reduced, the production efficiency is improved, and the cost is saved.

The utility model discloses an air supply mechanism of a scroll type refrigeration compressor, and relates to the technical field of refrigeration scroll compressors, in particular to a structure, with an air supply function, of the scroll type refrigeration compressor. The scroll compressor comprises a fixed scroll and an upper cover, a side hole is drilled in the side part of the fixed vortex back plate; a hole is drilled in the side part of the upper cover; the blowdown pipe penetrates through the hole and then is inserted into the side hole; an O-shaped ring for sealing is arranged between the air supplementing pipe and the fixed vortex; an annular boss is machined on the air supplementing pipe, and the outer diameter of the boss is much larger than the hole diameter of the hole. The boss and the side wall are welded in a carbon dioxide arc welding mode, and a welding seam is formed. According to the technical scheme, the problems that in the prior art, due to the fact that the position relation between the upper cover and the fixed vortex in the height direction is affected by superposition of a plurality of parts, fluctuation is large, a blowdown pipe and a side hole of the fixed vortex are sealed in a filling mode, sealing is not thorough, the blowdown pipe and the upper cover are welded and sealed in a brazing mode, brazing efficiency is low, and a certain leakage rate exists are solved.

The invention relates to the field of machine manufacturing, in particular to a dovetail groove rapid measurement method and tool, and the method comprises the steps: detecting the opening width of a trapezoidal groove based on a first cuboid sub-block and a second cuboid sub-block, and enabling the bottom width of the first cuboid sub-block to be larger than the design width of an upper opening of the trapezoidal groove, and enabling the bottom width of the second cuboid sub-block to be larger than the design width of a lower opening of the trapezoidal groove; the width of the bottom surface of the first cuboid sub-block is smaller than the designed width of the upper opening of the trapezoidal groove; the groove bottom included angle of the trapezoidal groove is detected based on a first right-angle triangular prism and a plurality of cuboid measuring sub-blocks, the bottom face of the first right-angle triangular prism is provided with an acute angle equal to the design value of the groove bottom included angle, and the cuboid measuring sub-blocks are the same in bottom face height and different in bottom face width. According to the invention, the first cuboid sub-block and the second cuboid sub-block are adopted to rapidly and accurately measure the width of the trapezoidal upper opening of the dovetail groove, and qualified products with the upper opening width can be screened out; by arranging the first right-angle triangular prism and the second cuboid block, the first groove bottom included angle and the second groove bottom included angle are measured, unqualified products are classified and recycled, and the machining cost and the product reject ratio are reduced.

The primer bottom cover assembling machine comprises a bottom cover feeding mechanical arm, a bottom cover transferring mechanism, a bottom cover rotating mechanism, a core mold conveying line, a bottom cover discharging mechanical arm and a bottom cover pressing connection mechanism, the bottom cover transferring mechanism comprises a carrying table conveying line and a bottom cover carrying table arranged on the carrying table conveying line, and a plurality of bottom cover containing grooves are formed in the bottom cover carrying table; the bottom cover containing groove is used for containing bottom covers conveyed by the bottom cover feeding mechanical arm, a window is formed in the center area of the bottom face of the bottom cover containing groove, and the carrying table conveying line is provided with a bearing position, an adjusting position and a discharging position which are sequentially arranged. The bottom cover rotating mechanism is arranged at the adjusting position and comprises a limiting rack, an adjusting rack, an adjusting lifting driving part, an adjusting lifting frame and a plurality of sets of rotating driving assemblies, the adjusting lifting driving part is arranged on the adjusting rack and connected with the adjusting lifting frame to drive the adjusting lifting frame to ascend and descend, and each rotating driving assembly comprises a rotating driving part and a rotating head. The primer bottom cover assembling machine is high in production efficiency.

The present invention discloses a single-core B1-level isolated fire-resistant cable, comprising a wire core, an insulating layer, an isolation layer, an anti-dropping sheath, and an outer sheath arranged in sequence from the inside to the outside, wherein the outer sheath contains a halogen-free intumescent flame retardant, the anti-dropping sheath is a surface-modified aluminum alloy, the anti-dropping sheath and the outer sheath are bonded by a polyurethane crosslinking agent, and the preparation method of the surface-modified aluminum is: (1) pretreatment; (2) acid immersion; (3) surface modification. The wire core is wrapped in a protective layer using a multi-layer structure, and the intumescent flame retardant in the outer sheath and the oxygen barrier effect of the isolation layer are used, and the anti-dropping sheath is used to prevent the internal structure from falling off during the combustion process, so that the cable meets the B1-level flame retardant requirements, is halogen-free and non-toxic at high temperatures or when burning, and the combustion smoke is non-toxic and non-corrosive, will not cause corrosion to precision equipment, and will not cause pollution to the atmospheric environment, and can meet the use of important places with concentrated personnel and high safety requirements.

The present invention discloses an intelligent monitoring method and system for numerically controlled machine tools, and relates to the technical field of machine tool monitoring. The intelligent monitoring method and system for numerically controlled machine tools realize comprehensive monitoring and optimization of the operating status of machine tools by setting a data acquisition module, a precision monitoring module, and an abnormal warning module. The data acquisition module collects machine tool operating data in real time through sensors to ensure the accuracy and timeliness of the data, and provide a reliable basis for subsequent analysis. The precision monitoring module analyzes the working status of the machine tool in real time and identifies the trend of periodic abnormal fluctuations, so as to timely discover potential problems and avoid the expansion of processing errors. The cutting speed and feed rate are intelligently adjusted through the fuzzy control algorithm, which significantly improves the processing accuracy and efficiency and reduces manual intervention. The abnormal warning module monitors the machine tool operating data in real time, generates warning information, and ensures that the operator can take measures in time, thereby improving the intelligence level of the numerically controlled machine tool.

The application relates to the field of goods issuing, in particular to a lifting mechanism and a goods issuing device. The lifting mechanism comprises a guide rail fixed in a cabinet of the goods issuing device, the guide rail comprising a first guide surface and a second guide surface which extend obliquely towards each other and are arranged vertically; and a roller assembly comprising at least one roller which is rotatably connected to a delivery hopper accommodated in the cabinet around an axis of the roller, an annular groove which surrounds the axis of the roller and accommodates part of the guide rail is formed in the outer periphery of the roller, and two side walls of the annular groove are a first annular inclined surface and a second annular inclined surface which extend obliquely towards each other; wherein when the delivery hopper is lifted in the cabinet, the first annular inclined surface is in rolling contact with the first guide surface, and the second annular inclined surface is in rolling contact with the second guide surface. The application reduces assembly difficulty and product failure rate, improves production efficiency, and prolongs the service life of the lifting mechanism.

The invention discloses part implanting equipment and a method thereof, and relates to the technical field of part machining, the part implanting equipment comprises a machine body, a cutting mechanism, a terminal carrying mechanism, a terminal carrying table set, a material receiving mechanism, a material supplying mechanism, a sound net carrying mechanism, a sound net carrying table set and a material placing mechanism, the material placing mechanism is arranged on one side of the machine body, and the cutting mechanism is arranged in the machine body; the terminal carrying mechanism is arranged in the machine body, the terminal carrying table set is arranged in the machine body, the material receiving mechanism is arranged in the machine body, and the material supply mechanism is arranged in the machine body. Through integrated design and automatic control, precise operation of the whole process of feeding, cutting, carrying and implanting is achieved, the production efficiency of the equipment and the consistency of part implanting are effectively improved, the flexibility and stability of the system are enhanced through the modular mechanism layout and the multi-station cooperative operation mode, and the production efficiency of the equipment is improved. And the manual intervention intensity and the product reject ratio are also obviously reduced.

The application discloses a glue road glue discharging management method and device, computer equipment and a readable storage medium. The method comprises the following steps: acquiring glue amount state data of a target glue discharging port in a glue discharging process, wherein the glue amount state data is used to determine the glue discharging state of the target glue discharging port; determining the glue discharging state result corresponding to the target glue discharging port based on the glue amount state data and a preset glue amount rule corresponding to the target glue discharging port; generating an abnormality processing instruction when the glue discharging state result meets a preset glue discharging abnormality condition; and outputting a corresponding abnormality control signal based on the abnormality processing instruction, so that the control target glue discharging port corresponding glue supply execution mechanism stops discharging glue. Through the above method steps, the insufficient glue amount, no glue discharging or glue road abnormality can be recognized according to the actual glue amount state of the target glue discharging port, and the glue supply is stopped in time when the abnormality occurs, which is beneficial to reduce the bonding failure and product failure rate caused by the glue discharging abnormality.

The invention discloses a primer upper cover assembling machine which comprises an upper cover feeding mechanism, an upper cover transferring mechanism, an upper cover rotating mechanism, a core mold conveying line, an upper cover discharging mechanical arm and an upper cover pressing connection mechanism, and the upper cover feeding mechanism comprises an upper cover feeding mechanical arm; the upper cover transferring mechanism comprises a carrying table conveying line and an upper cover carrying table arranged on the carrying table conveying line. The carrying table conveying line is provided with a bearing position, an adjusting position and a discharging position which are sequentially arranged. The upper cover rotating mechanism comprises an adjusting rack, an adjusting lifting driving part, an adjusting lifting frame and a plurality of rotating driving assemblies, the adjusting lifting driving part is arranged on the adjusting rack and connected with the adjusting lifting frame, each rotating driving assembly comprises a rotating driving part and a rotating head, and the rotating driving part is arranged on the adjusting lifting frame and connected with the rotating head; the rotating head is located above the carrying table conveying line, a plurality of elastic plug pins are arranged at the bottom of the rotating head, and the elastic plug pins can stretch out and draw back in the vertical direction. The primer upper cover assembling machine is high in production efficiency.

The invention provides a method for detecting foreign matters in a circuit connection layer of a packaging substrate, which comprises the following steps of: distinguishing whether the packaging substrate has defects or not, and marking defect positions on the packaging substrate with the defects, and the packaging substrate comprises a silicon-based intermediate layer for electrically connecting a chip with the packaging substrate; a defect sample obtained through sampling is placed on a sample table, an inclined angle is formed between the defect sample and the table top of the focused ion beam machine table, and the marked defect positions are cut one by one through focused ion beams so that foreign matter below the defect positions can be exposed; and performing component analysis on the exposed foreign matter based on the cutting surface formed by the focused ion beam to determine the source of the foreign matter. According to the invention, the production process and / or environmental contamination which may affect the yield of the packaging substrate can be detected in time, the production process of the packaging substrate is optimized, the production process of the packaging substrate can be improved in a targeted manner, and the production reject ratio of the packaging substrate is reduced.

The utility model discloses a buckle type middle frame installation jig which comprises a platform, a first pressing assembly and two second pressing assemblies, and the platform is provided with a containing groove used for containing a back plate and a middle frame. The first pressing assembly comprises a first pressing frame and a first pressing module mounted on the first pressing frame, and the first pressing frame is rotationally mounted on the platform and is close to the sky side of the middle frame; the second press-fit assembly comprises second press-fit frames and second press-fit modules installed on the second press-fit frames, the two second press-fit frames are rotationally installed on the platform and are close to the left side and the right side of the middle frame respectively, and when the back plate and the middle frame are sequentially placed in the containing groove, the first press-fit frames and the second press-fit frames are pressed downwards, and the back plate and the middle frame are pressed downwards; the first pressing module can act on the sky side of the middle frame, and the two second pressing modules can act on the left side and the right side of the middle frame correspondingly so that the middle frame can be connected to the back plate in a clamped mode. When the buckle type middle frame mounting jig is used for pressing, the product quality and the working efficiency can be improved.

The invention discloses a reflector plate post-treatment processing device for an LED backlight source, and belongs to the technical field of reflector plate processing, the reflector plate post-treatment processing device comprises a conveying assembly used for conveying reflector plates, the conveying assembly is provided with a processing assembly used for removing waste materials at punching positions of the reflector plates, and the processing assembly comprises a blanking mechanism, a cutting mechanism, an adjusting mechanism and a heating mechanism; a waste material assembly used for collecting waste materials is arranged below the machining assembly, and a detection assembly used for detecting rejection of reflector plate waste materials is arranged above the machining assembly. The punching mechanism punches waste out of a hole, the cutting mechanism can accurately cut the edge of the waste around the hole, it is guaranteed that the hole is tidy, the waste is completely separated from a reflector plate, material damage and the production reject ratio are effectively reduced, the waste removing process is faster through cooperation of the cutting mechanism and the cutting mechanism, the machining time is shortened, and the production efficiency is improved. The adjusting mechanism enables the distance between the two blanking mechanisms to be adjustable so as to adapt to reflector plates of different sizes and layouts, and the heating mechanism improves the waste removing effect.

The utility model discloses a hub unit bearing high-precision automatic fitting device which comprises a base, a fitting mechanism is arranged in the center of the upper portion of the base, a control panel is arranged below the fitting mechanism, a supporting frame is arranged on one side of the control panel, a first conveying mechanism is arranged on one side of the supporting frame, and a second conveying mechanism is arranged on the other side of the supporting frame. A first manipulator is arranged on one side of the first conveying mechanism, two sets of second conveying mechanisms are arranged on one side of the fitting mechanism, and the two sets of second conveying mechanisms are arranged in a staggered mode in the horizontal direction of the base; the first conveying mechanism and the second conveying mechanism comprise driving wheels and magnetic conveying belts, a fixing rod is arranged on the side, close to the fitting mechanism, of the second conveying mechanism, a second mechanical arm is arranged at one end of the fixing rod, and a camera is arranged on one side of the second mechanical arm. And high-precision operation of the manipulator is combined, so that precise sleeving of the bearing is realized.

This utility model discloses a connector PIN pin detection device, including a housing with a cover plate on the top and a base on the bottom. A partition is installed inside the housing, dividing it into an installation cavity and a connection cavity. A battery holder is installed on one side of the installation cavity, containing a battery. An LED detection module is connected to the output end of the battery holder, and several probes are connected to the output end of the LED detection module. These probes penetrate the partition and extend to its lower side. This utility model, through direct electrical conduction between the probes and the PIN pins, combined with LED display, effectively avoids misjudgments and omissions caused by subjective human judgment, significantly reducing product defect rates. By using LEDs as the display terminal for detection results, the on / off state of the detection results is presented intuitively. Operators can quickly understand the detection status without complex training, improving the smoothness of the production process, increasing detection efficiency and accuracy, and reducing labor costs and product defect rates.

This utility model relates to the field of embossing machine technology and discloses an integrated dispensing and UV nano-transfer embossing machine. A marble platform is used to support the mold and ensure operational stability. The main motion device of the equipment can drive the moving frame and the dispensing, pressure roller, dispensing, UV curing devices, and touch-screen operation panel box to move horizontally. The dispensing device uses a movable protective film air shaft and a UV nano-film air shaft to achieve automatic peeling of the UV nano-film from the protective film. The pressure roller device uses a liftable pressure roller to press the UV nano-film onto the mold. The dispensing device evenly applies UV adhesive to the mold surface through a dispensing head. The UV curing device uses a UV lamp box to cure the pressed UV adhesive. The touch-screen operation panel box allows setting parameters, controlling the start and stop of the process, and viewing the operating status. This utility model integrates dispensing, embossing, and curing processes into one machine, eliminating the need for multiple equipment transfers, significantly shortening the processing flow, and significantly improving production efficiency.

This utility model relates to the field of battery hot-pressing formation technology, and particularly to a hot-pressing formation fixture for square aluminum-cased batteries. It includes two independently arranged layer plate assemblies, each comprising multiple slidable layers. A clamping space is formed between adjacent layers, and an aluminum liner is held within this space, with the battery placed inside. Each layer plate assembly includes several parallel guide shafts, on which the layers slide back and forth. Two push plates are also mounted on the guide shafts, each corresponding to one end of a layer plate assembly. Each push plate is connected to a drive assembly, which drives the push plate to move along the guide shafts. Compared to existing technologies, this utility model's hot-pressing formation fixture for square aluminum-cased batteries reduces production defect rates, decreases production changeover time, and improves production efficiency.

This utility model discloses a suction cup synchronous variable-pitch support adsorption and handling device, including: an X-axis linear transfer module, which is driven and connected to two Z-axis variable-pitch linear modules, and the Z-axis variable-pitch linear modules are driven and connected to suction cup modules; this utility model achieves precise and stable gripping and handling of PCB circuit boards by combining vacuum suction cup adsorption with synchronous variable-pitch support, ensuring that the circuit board remains flat during handling and avoiding damage caused by mechanical contact or uneven force; at the same time, by automatically adjusting the support spacing, the device improves its versatility for circuit boards of different specifications and sizes, reduces manual intervention, improves the automation level and production efficiency of circuit board handling on the PCB production line, and reduces production costs and product defect rate.