327results about How to "Reduce pass rate" patented technology

The invention relates to the technical field of automatic machine assembling, in particular to a self-adaptation flexible assembling device for a hydraulic cylinder head body. The technical problem ofassembling of a cylinder barrel and a cylinder head body of a large multistage hydraulic cylinder is solved. The self-adaptation flexible assembling device comprises a cylinder barrel flexible clamping platform and a cylinder head body flexible clamping platform which are independent from each other and need to be used in cooperation with each other. The cylinder barrel flexible clamping platformis used for fixing a cylinder barrel, and the cylinder barrel flexible clamping platform can do perpendicular lifting motion and horizontal motion in the radial direction of the cylinder barrel. Thecylinder head body flexible clamping platform is used for fixing a cylinder head body, the cylinder head body flexible clamping platform can do horizontal motion along the axis of the cylinder barrel,the cylinder head body flexible clamping platform drives the cylinder head body to move towards the cylinder barrel and rotate synchronously, and finally the cylinder head body and the cylinder barrel can be assembled through thread connection. By means of the self-adaptation flexible assembling device, the historic problems that operation is complex, the assembling efficiency is low, the surface, making contact with a lifting clamp, of the cylinder barrel is likely to be damaged, and even the cylinder barrel is disengaged in the traditional cylinder barrel and cylinder head body assembling process can be effectively solved.

The invention discloses a rework method of defective products of crystalline silicon solar cells after printing. The method includes the following three steps: an aluminum paste at the back surface of a cell is removed by using an HCl cleaning liquid; silver pastes at the positive and negative surfaces of the cell is removed by using isopropanol; the cell, the pastes of which is basically removed is treated with deep cleaning by using the deep cleaning liquid so as to thoroughly clean tiny impurities. The conversion efficiency of the cell can achieve the level of a normal cell by using the method for processing, and the appearance is not different from the normal cell, thus the invention achieves the purpose of rework cleaning. The failure rate of the silk screen printing of the cells is reduced to about 0.2 percent from original about 2 percent, thereby increasing the qualified rate and the yield of the silicon solar cells.

The invention relates to a novel multifunctional PCB production automation system, comprising an automatic feeding system, a fully-automatic two-dimensional code sticking system, a height measuring system, an automatic adhesive dispensing curing system, an online automatic board-splitting cutting system, and a finished product sorting recovery system. The input ends and output ends of the above systems are connected in sequence. Control centers disposed on the above systems are connected with each other. The input end of the automatic feeding system is also provided with a large PCB feeding device. The large PCB feeding device is connected with the control center of the automatic feeding system. Thus, two-dimensional code marking on each PCB unit on a large PCB can be automatically completed, and good product detection, and cutting of the large PCBs can be automatically completed. The system can automatically complete finished products of PCB units, and the system is powerful in functions, high in automation degree, high in production efficiency, low in labor intensity, low in production cost, and high in qualified rate, and has assurance in product quality. A reversed design is used, thereby effectively preventing dusts generated in a cutting process from falling on the PCB, so the finished products are clean.

The invention is made by means of following steps: takes high grade mirror surface stainless steel as material of lower mold plate and upper mold plate; the counter bore perpendicular to axial line of location hole is located at the bottom surface of location hole in the lower mold plate; the step locating pin is composed of the locating column and the foundation; the locating column is perpendicular to the foundation, and the upper mold plate and the lower mold plate are jointed through the step locating pin. Because the location holes in the lower mold plate and the up mold plate coincides with designing basis for each layer of circuit in multi layer circuit board, and is processed by using digital control equipment, the laminating mold has not only precise location, but also low weight, and can process 8 piece multi layer circuit board at on time by hot-pressed.

The invention discloses a key lifting switch device, comprising a keycap, a retractable assembly positioned above a base plate, a switch mechanism for closing and opening the key signal corresponding to the keycap lifting action, the retractable assembly comprises a pair of frames which are impossible to contact with each other, are arranged in a reciprocal manner and form a cavity, the corresponding bottom edges of the two frames can be arranged in two sliding kits which are preset at the two sides of the base plate in a sliding manner, the respective corresponding top parts thereof are arranged with two pivoting-arranged kits which are preset on the bottom of the keycap in a pivoting manner; synchronous sliding pieces used for pressing the synchronous lifting of the pair of frames penetrates the cavity of the pair of the frames, one side thereof is arranged on the base plate and the other side thereof is limited to move along with the retractable movement of the bottom surface of the keycap. In addition, the invention also discloses an assembling fixture and an assembling technology corresponding to the switch device. Compared with the prior art, in the invention, the structure of the key lifting switch device is simplified, the assembling fixture and the assembling technology are improved, thus the production efficiency of keyboards and the finished product acceptability are further improved.

The embodiment of the invention provides a defect detection method and device, relates to the field of optical automation defect detection, and can lower the excessive judgment rate of a defect through a simple defect detection method. The defect detection method comprises the following steps: after a detection picture is displayed on a panel to be detected, collecting the defection picture of the panel to be detected in a first direction, and obtaining the first quantized data of a target area in the detection picture; moving the panel to be detected to a second direction, wherein the second direct is different from the first direction; collecting the detection picture of the panel to be detected in the second direction, and obtaining the second quantized data of the target area in the detection picture; according to the first quantized data and the second quantized data in the same target area, determining practical defects in the target area.

The invention relates to solar energy cell sheet processing. Concretely the invention is a crystalline silica solar energy cell sheet plasma enhanced chemical vapor deposition (PECVD) method rainbow film reworking method which is a cleaning process method of a cell sheet having a rainbow film on a surface, and the rainbow film is caused by abnormal discharge in a process of preparing a crystalline silica solar energy cell sheet by utilizing a plasma enhanced chemical vapor deposition method. The cell sheet which is processed by the reworking method is subjected to film plating, printing, and sintering anew, conversion efficiency of the cell sheet can reach a normal level of a cell sheet, appearance of the cell sheet is the same as a normal cell sheet, and a purpose of reworking cleaning is achieved.

The invention discloses a device for measuring the planeness of a pole lug. The device comprises a platform, a battery fixing plate and a digital display dial gauge, wherein the platform is supported by upright posts; the battery fixing plate can be driven to move up and down in the manner of being relative to the platform; the digital display dial gauge is fixedly arranged above the platform; the battery fixing plate comprises a horizontal loading plate, a U-shaped limit plate and a groove; the U-shaped limit plate is arranged on the horizontal loading plate; the groove is formed at the opening of the U-shaped limit plate and corresponds to a pole lug boss of a battery; the digital display dial gauge comprises a display screen, a measuring pole and a measuring block; the measuring pole is vertically arranged; the measuring block is fixedly connected with the measuring pole; and the width of the measuring block corresponds to the pole lug. The measuring device is simple in structure, convenient to operate and is particularly much lower than an optical instrument in cost, test is not affected by deflection, bending and warping of the pole lug, the accuracy is higher, and the speed is also much higher.

The invention relates to a preparation method of a titanium alloy spring made of a wire with a specially-shaped section and belongs to the technical field of springs. The spring is formed by winding of the titanium alloy wire with the specially-shaped section; the titanium alloy wire comprises the components in percentage by mass as follows: 2-4 of Al, 6-10 of V, 4-8 of Cr, 2-6 of Mo, 2-6 of Zr, 0.1-0.3 of Fe, 0.03-0.15 of Si and the balance of Ti. The section of the titanium alloy spring wire can be rectangular, square, orthohexagonal or oval. The titanium alloy wire wound into the spring is prepared with forging, pressing and hot rolling technologies, the wire is subjected to solution treatment before being wound into the spring, and a finished product of the spring is subjected to aging and strengthening treatment. A titanium alloy which is used for preparing the spring can play a weight reduction role, and meanwhile, the titanium alloy has the good corrosion resistance and the long fatigue life in an ocean environment. With the adoption of the wire with the specially-shaped section, the section area can be increased under the condition that specifications of wires are similar, so that the rigidity of the spring is improved, and the usage requirement of the titanium alloy spring under the high workload can be met.

The invention provides a mechanical press machine electromechanical overload protection and tensile device which comprises a press machine connection rod which is vertically arranged; and the bottom of the press machine connection rod is vertically provided with a blind hole, a guide rod is vertically arranged below the press machine connection rod, the top of the guide rod is provided with a movable rod matched with the blind hole, and the movable rod is movably installed in the blind hole. By the adoption of the above structure, the overload protection device is not arranged in a sliding block body any more, sliding block equipment does not need to be detached when being maintained and repaired after long-term use, maintenance and repairing operation is convenient, and the mechanical press machine electromechanical overload protection and tensile device has the advantages that the device is easy and reliable to install, unique in structure, safe and reliable, high in efficiency, low in cost, green and environmentally friendly, the service lives of a mechanical press machine and a die are prolonged, product forming quality is improved, and the like.

The invention discloses a video playing method and apparatus, computer equipment, and a computer readable medium. The method includes steps: obtaining a screen refreshing rate of a terminal device; determining whether a film source frame rate of a to-be-played film source is matched with the screen refreshing rate; if not, processing the film source frame rate of the to-be-played film source to generate a medium stream whose the film source frame rate and the screen refreshing rate are matched; and transmitting the medium stream to the terminal device. According to the video method and apparatus, frame loss or frame insertion operation is performed on the film source frame rate of the to-be-played film source in a streaming media platform, and the screen frame rate and the film source refreshing rate of the to-be-played film source are matched so that the frame rate of the output media data is reduced, the transmission code rate is reduced, the bandwidth requirement is reduced, each frame interval of the decoded medium stream is large, the media stream is output and displayed, and the waste of bandwidth resources, decoding resources of set top boxes, and CPU resources due to frameloss is avoided.

The invention belongs to the technical field of aero-engine turbine cooling, and relates to a tapered inclined exhaust splitting seam structure for a turbine blade trailing edge. The inclined exhaustsplitting seam structure comprises a hollow turbine blade, an inner cavity cool air channel, a trailing edge exhaust splitting channel and trailing edge splitting seam partition ribs, wherein the inner cavity cool air channel is formed inside the hollow turbine blade, the trailing edge of the hollow turbine blade is provided with the trailing edge splitting seam partition ribs arranged side by side, and the trailing edge exhaust splitting seam channel is formed between the trailing edge splitting seam partition ribs arranged side by side for allowing cooling air to be discharged out of the blade and meanwhile carrying out air film coverage cooling on the blade trailing edge. According to tapered inclined exhaust splitting seam structure for the turbine blade trailing edge, the cool air canflow much smoothly, so that flow resistance and loss of the cool air in an cavity of the blade is reduced, and the flow resistance can be reduced by about 16%; and through designing an inclined exhaust trailing edge splitting seam into a tapered structure, the outflow speed of the cool air can be improved, internal convection heat exchange is strengthened, an air film coverage dead zone is reduced, in this way, comprehensive cooling effects of the blade trailing edge is further improved while blending loss is reduced, and heat exchange can be enhanced by about 8%.

The disclosed manufacture method for a sheet-form oxygen sensor to control the air/fuel ratio in vehicle engine comprises: preparing slurry by Yb-added zirconia ceramic to obtain smooth thin plate by a rolling die, then using a punch to prepare thin slice, using a cutter to manufacture sensing slice, air-dust slice and heating slice; coating electrode on the sensing slice and heating resistance on heating slice, stitching three slices into sheet-form oxygen sensor, and finally, sintering at 1500Deg. This invention is simple and low cost, and has high one-time percent of pass.

The invention relates to the technical field of milling machines, in particular to a machining milling machine provided with an overturning mechanism. The machining milling machine comprises a mounting frame, a power device, the overturning mechanism, a machining table, two fixing mechanisms, a tool seat and a length adjusting mechanism; the overturning mechanism is arranged in the middle of the lower end of the mounting frame; the machining table is arranged at the upper end of the overturning mechanism; the length adjusting mechanism is arranged in the middle of the lower end of the machining table; the two fixing mechanisms are symmetrically distributed on the two sides of the middle of the upper end of the machining table; the power device is arranged on the front side of the upper end of the mounting frame; and the tool seat is arranged in the middle of the lower end of the power device. The overturning mechanism is arranged to drive a machined part to be overturned to a designated angle, and thus the machined part automatically slides onto conveying equipment; the length adjusting mechanism is arranged, the length of the machining table is adjusted according to the length of the machined part, the contact area between the machining table and the machined part is large, and thus the machined part is stably supported and fixed. The invention further provides a machining method of the machining milling machine provided with the overturning mechanism.

The invention discloses a double-glass assembly manufacturing method, and the method comprises the steps: double-glass assembly laying, appearance inspection, EL testing, hot melting laminating, junction box installation, secondary EL testing, power testing, and finished product examination. The double-glass assembly laying specifically comprises the steps: firstly enabling a cut EVA glue film to be laid on bottom toughened glass; secondly enabling a required number of solar cells to be laid on the EVA glue film; thirdly enabling the plurality of cells to be connected in series through a bus bar to form a body; fourthly sequentially laying the EVA glue film and surface roughened glass on the solar cell string, and forming a solar double-glass assembly; and finally carrying out edge sealing through a high-temperature adhesive tape, and drilling. According to the invention, the high-temperature adhesive tape is used for fully pasting and sealing the periphery of the laid double-glass assembly, thereby effectively controlling the overflow quantity. The method greatly shortens the laminating time, and improves the production efficiency.

The invention discloses a mechanical processing method for dry cylinder liners. The method comprises the steps: shot blasting before a rough boring process to remove a coating layer and sundries from an external surface, so as to enable the external surface of a cylinder liner blank to be smooth and clean; during rough boring, locating by using a belt of a cylinder liner and the excircle blank surface of a water jacket part, so as to enable a three-point self-centering clamp to locate and clamp the blank excircle of the cylinder liner, and difference in the inner hole wall of the cylinder liner to be controlled within 0.5 mm. The method is adopted to process the dry cylinder liner, the blank weight of the cylinder liner can be reduced by more than 15%, three machining processes are eliminated on the basis of the original process, quality of the shoulder, the excircle and the inner hole of the cylinder liner can be effectively controlled, the passing rate of finished products of cylinder liners is improved to more than 90% from less than 85%, and the manufacturing cost of dry cylinder liners is reduced.

The invention discloses glaze for glazing a sanitary ceramic toilet bowl pipeline wet blank. The glaze is prepared from, by weight, 27-30 parts of quartz, 25-28 parts of potassium feldspar, 14-16 parts of calcite, 4-5 parts of dolomite, 3-4 parts of zinc oxide, 2-3 parts of aluminum oxide, 3-4 parts of kaolin and 14-16 parts of zirconium silicate. The glaze can be directly applied to the toilet bowl pipeline wet blank to achieve the applying effect of a common glaze material on a dry blank.

The invention relates to a metal plate bending method and terminal and belongs to the field of industrial automation. The metal plate bending method comprises the steps that an expanded view of a metal plate is read through an image preprocessing program, wherein the expanded view comprises bending lines, and the image preprocessing program is integrated into an upper computer of a bending machine; the bending direction and the target bending angle of each bending line are set through the image preprocessing program, so that bending configuration information is obtained; and the bending machine is controlled to implement corresponding bending operation through the bending configuration information. By means of the metal plate bending method, the bending production efficiency of the metal plate is improved, and the production cost is lowered.

The invention discloses a silicon rubber internal release agent and a preparation method thereof. The main component of the silicon rubber internal release agent is polydimethyl-methyl trifluoropropyl silicone oil, due to very low surface tension and excellent thermal stability of the polydimethyl-methyl trifluoropropyl silicone oil, the prepared silicon rubber internal release agent can be applied in a harsh temperature environment, has high safety, and is nonirritating and harmless. The silicon rubber internal release agent provided by the invention has the advantages of stable chemical properties, easy dispersion, low adding proportion and the like. When the silicon rubber internal release agent is used for preparation of uniform films and complex-shaped objects, formed products with accurate size and high qualified rate can be obtained.

The invention discloses a rubber adhesive strip for shoes. For the rubber adhesive strip, natural rubber, butadiene styrene rubber, accelerating agent M, accelerating agent DM, accelerating agent TMTD, sulphur, solid ancient malone, anti-aging agent BLE-C, argil, zinc oxide, stearic acid, machine oil, calcium carbonate, carbon black N330, scorch retarder CTP and salicylic acid are selected, and the rubber strip meeting the standard requirement is formed by dicing, plastifying, roling, plastifying again, rolling again, rubber refining, wingding and dividing. The rubber strip disclosed by the invention is adhered on the periphery of a dried sponge innersole coated with natural rubber glue, a dried upper with upper corners brushed with the natural rubber glue is sleeved on a shoe tree, and the sponge innersole adhered with the rubber adhesive strip is placed at the bottom of the shoe tree and pulled by hand or machine to be adhered with the upper. With the adoption of the rubber adhesive strip, a polyester filament yarn upper can be effectively and firmly adhered with the sponge innersole, and the percent of pass of the finished shoes can reach more than 99%.

The invention relates to an ingot casting device for a silicon crystal in the field of solar photovoltaic, in particular to a combined crucible for accommodating silicon materials, and well solves the technical problem of low utilization rate of the conventional quartz crucible. The crucible is characterized by comprising an upper cover 1 and a lower crucible 2, wherein the upper cover 1 is stacked over the lower crucible 2 and is enclosed by an upper side wall 3; the lower crucible 2 comprises a lower side wall 4 and a bottom plate 5; the lower side wall 4 encloses the periphery of the bottom plate; and the upper side wall 3, the lower side wall 4 and the bottom plate 5 jointly form a cavity capable of accommodating materials. Therefore, more silicon materials can be filled, silicon liquid falls below an opening plane of the lower crucible after the silicon materials are melted into the silicon liquid, and the filling factor of the lower crucible is improved, namely the utilization rate of the lower crucible is improved, so that the yield of a single furnace per unit time is improved, silicon ingots with higher size and heavier weight are obtained, and the utilization rate of the silicon materials is improved.