31results about How to "Avoid product quality defects" patented technology

The invention discloses an automatic painting robot for shipbuilding coating. The automatic painting robot for shipbuilding coating comprises a painting movement mechanism, a PLC and a spray gun; the painting movement mechanism comprises a side-to-side movement mechanism, a front-to-back movement mechanism and a rotational movement mechanism; the side-to-side movement mechanism comprises a first shell, a sliding block and a first motor, the first motor drives the sliding block to move from side to side, the spray gun is fixedly arranged on the sliding block, and the first shell is provided with a distance measuring sensor; the front-to-back movement mechanism comprises a second shell, an inner shell and a second motor, and the inner shell moves back and forth in the second shell; the rotational movement mechanism comprises a support plate, a third motor and a fixed gear wheel, the side-to-side movement mechanism and the support plate are connected with the inner shell through a bearing, the third motor drives the side-to-side movement mechanism to rotate around the bearing, and the distance measuring sensor, the first motor, the second motor and the third motor are electrically connected with the PLC. According to the automatic painting robot for shipbuilding coating, the work efficiency is improved, the labor cost is reduced, the construction period is shortened, the evenness of a paint coating is good, and the quality of the paint coating is improved.

The invention discloses a spraying robot for a surface of a ship body. The spraying robot comprises a chassis, a large arm, a small arm and a tail end actuator. The tail end actuator comprises a spraying gun installation base, at least one spraying gun and at least one laser displacement sensor for controlling the pose of the tail end actuator. The spraying robot for the surface of the ship body is used for avoiding influence of harmful gas in spraying and repeating the same operation action tirelessly, and is suitable for replacing manpower to carry out the operation in high pollution and intensity work like ship body spraying. The intelligent spraying robot for the ship body is adopted to complete the spraying work so that the pollution in the spraying process can be reduced, energy can be saved, and the working efficiency can be improved.

The invention relates to a method for machining a hot-mounted dam roller. The method for machining the hot-mounted dam roller comprises the steps of machining of a roller cylinder, machining of spindle heads and assembling of the roller cylinder and the spindle heads; assembling of the roller cylinder and the spindle heads comprises the following steps that the spindle heads and the roller cylinder are in interference fit to obtain the dam roller; unbalance amount of the dam roller is detected, center offset amount and the offset direction of the dam roller are calculated, when the unbalance amount is larger than 10 g based on a balance amount, a double-four-jaw chunk clamping device on a lathe is adopted to conduct eccentric borrowing on the dam roller, outer circle turning is conducted to remove the unbalance amount; and finish turning is conducted on a second outer circle of the roller cylinder and eighth outer circles, ninth outer circles and tenth outer circles of the spindle heads by adopting a numerical control lathe turning. The method for machining the hot-mounted dam roller has the advantage of high balance precision.

The invention provides a one-step molding method of a split foot with a grounding hole, aiming to solve the problems that the production schedule of a foot molding procedure is faster than that of a procedure of punching a grounding hole of the foot, and the procedure of punching the grounding hole of the foot becomes a bottleneck procedure for restricting the promotion of the capacity. The invention has the essential that the production procedures of molding the foot and punching the grounding hole are realized on a set of dies at one time so as to achieve the purpose of generating different effects by the production schedule along different processing equipment. The invention overcomes the limits of manual production and has the advantages that the problem that the efficiency of punching the grounding hole of the foot is lower than the efficiency of molding is solved, and the efficiencies of the two procedures are made to consistent, so that the production efficiency of the foot is greatly improved.

The invention discloses a device for online wear detection of a self-piercing riveting gun mold. The device is characterized in that an image acquisition platform is provided for a riveting gun mold on a piercing riveting production line; an image acquisition device for obtaining a mold image is mounted on the image acquisition platform; an image acquisition signal of the image acquisition device is used as an output signal; a computer is used for analyzing the output signal so as to judge the wear degree of a mold. The device provided by the invention can timely monitor the wear state of the mold in an online detection manner, avoids product quality defects, also avoids tediousness brought by disassembly process and the influence on the normal process section, effectively improves the production efficiency, and ensures the product quality.

The invention provides a preparation method of a fine-sand-shaped raw material, and aims to overcome the defects of unstable preparation and mixing as well as poor uniformity in the fine-sand raw material for additive manufacturing equipment. According to the preparation method of the fine-sand-shaped raw material, a butterfly valve type switch component is arranged on a hardware component, and hardware actions are controlled through software in order to realize accurate control of the adding amount. In the preparation method of the fine-sand-shaped raw material, a reasonable stirring structure is provided, and the stirring time is controlled, so that the mixing uniformity is realized, thereby ensuring the accuracy of raw material preparation and the mixing uniformity, and guaranteeing theproduction of qualified products.

The invention relates to a control method for realizing automatic zero approach of an aluminum cold rolling mill by utilizing the difference in roll diameter. This method determines the roll gap setting value by determining the contact rolling force and pressing rolling force parameters of the roll system, and using the roll diameter difference: the roll gap set value is calculated by calculating the roll diameter difference of the new and old roll system before and after the roll change , and give two roll gap values ​​in stages, that is, the initial roll gap value and the secondary roll gap value; then, based on the above calculation parameters, automatic pressing is performed. The method of the invention improves the production efficiency and yield of the rolling mill, and avoids the occurrence of product quality defects caused by pressing.

The invention provides a novel mineral powder decomposition kettle. The decomposition kettle comprises a shell, a fixed plate, a decomposition chamber, supporting legs, a carbon dioxide conveying tube, a calcium carbonate conveying tube, a heatproof protection tube, a sealing ring, a heating plate, a temperature sensor, a control panel, a controller, a check valve and a push fan, wherein the fixedplate is mounted in the shell by bolts, the decomposition chamber is mounted in the fixed plate by bolts, and the supporting legs are welded to the lower part of the shell; and the carbon dioxide conveying tube is connected to the top of the decomposition chamber through a hole in the top of the shell, the calcium carbonate conveying tube is connected to one side of the decomposition chamber through a hole in one side of the shell, and the surface of the calcium carbonate conveying tube is bonded with the heatproof protection tube. The arrangement of the carbon dioxide conveying tube, the calcium carbonate conveying tube, the heating plate and the check valve makes the novel mineral powder decomposition kettle have the advantages of small size, small occupied space, simplicity in reaction, no clogging, high decomposition efficiency, realization of internal stirring at any time, and convenience in market promotion and application.

The invention relates to the technical field of 3D printing, in particular to a 3D printing method and 3D printing equipment. The 3D printing method comprises the steps that (1) at least partial projections overlap between two digital micromirror assemblies arranged adjacently to form a plurality of printing areas; (2) each layer of graph to be printed is generated on the basis of the printing areas formed among the plurality of digital micromirror assemblies, wherein projection areas in the graphs to be printed of different layers are variable; and (3) a light source and the plurality of digital micromirror assemblies are synchronously moved along one direction so as to realize layer-by-layer picture projection. By using the 3D printing method, the projection overlapping areas among the plurality of digital micromirror assemblies can be dispersed, so that stress concentration is avoided, and the mechanical property of a final product is improved.

The invention relates to an automatic straightening device of a reed and belongs to the field of automobile part manufacture equipment. The automatic straightening device comprises a quenching furnace (1) and is characterized in that one side of the quenching furnace (1) is fixedly provided with a work table (2), the upper plane of the work table (2) is provided with a reed conveying device and a reed straightening device side by side, a support frame (3) is supported and fixed above the reed conveying device and the reed straightening device, and a control device is arranged on the support frame (3) and is connected with a motive power device (9) arranged at one side of a reed extrusion device. The automatic straightening device of the reed has the advantages that the automatic straightening of the reed can be realized, the work efficiency is improved, the labor and the materials are saved, the product quality is improved, meanwhile, a control system is simple, the machine halt caused by part damage can be effectively prevented, and in addition, the work is safer.

The invention relates to a preparation method of an ultra-light multi-feature skin-free skeleton type composite material shell. The preparation method comprises the following steps of automatically winding linear trajectory planning by arranging an end socket guiding and positioning device capable of freely moving, achieving accurate groove entering numerical control automatic winding of 'non-geodesic line 'equidistant spiral ribs and annular rib hot melting prepreg filaments and alternate proceeding of framework ribs and multi-feature structure laying are. Aiming at a multi-feature skin-free skeleton type structure, uniform and effective connection of side wall flanges, end frames and skeleton ribs is realized through balanced interactive coupling layering structure design, accurate calculation of a skeleton rib hot-melt prepreg filament winding cycle number, balanced interactive coupling rib winding-end frame-opening reinforcing area layering structure, rib scattering and the like, and the overall rigidity and stability of the product are ensured. By optimizing the design of a framework rib R-angle mold, a pre-compaction control technology and a reasonable curing process, the problems of poor rib size precision, rib defects and product quality defects caused by the problem of multi-feature structure curing pressurization interference due to edge overflow of a skin-free framework rib are solved, high-quality and high-dimensional-precision integrated forming of the ultra-light multi-feature skin-free framework composite material shell is achieved, the weight is reduced by 30% or above compared with a traditional skin structure, and the requirement for light weight of spaceflight models is met.

The invention discloses a preparation method of an insulating paper cylinder. The method comprises the following steps of: selecting the thicknesses and the quantity of veneers according to the thickness of a final product, carrying out humidifying, stacking, standing and mold loading, carrying out cold pressing and hot pressing on a wet paper board on a mold, and finally carrying out cutting and forming. According to the preparation method, the defects caused by an adhesive can be effectively removed in the preparation of the insulating paper board with the thickness of 10-50mm, and the overall quality and the production efficiency of the insulating paper board are improved.

The invention provides a van vehicle side plate lifting appliance, belongs to the technical field of side plate lifting appliances, and aims at solving the problems that in the existing van vehicle side plate crane transport process, according to a crane transport manner, a van vehicle square and rectangular pipe is punched or welded with a special hanging piece, the product production efficiencyis greatly reduced through the punching and hanging piece welding modes, and product quality is affected. The van vehicle side plate lifting appliance comprises a fastener main body, a hanging lug isarranged at the top of the fastener main body, and a plug pin is inserted into the left side of the fastener main body. By means of the van vehicle side plate lifting appliance, workpieces composed ofall van vehicle square and rectangular pipes and corrugated plates can be hung, and the van vehicle side plate lifting appliance is safe, reliable and convenient to fix and detach; and product quality defects and unnecessary cutting repair welding operation caused by original punching and hanging piece welding modes are effectively avoided. The hanging efficiency of a carriage sub-assembly amongall procedures is improved, and the appearance quality of products is improved.

The invention belongs to the technical field of exposed conductor detection and particularly relates to an exposed steel wire detection device of a tire forming machine. The exposed steel wire detection device comprises a bracket, pressure rollers and a controller, wherein the bracket is provided with a suspension beam; the pressure rollers include a first pressure roller and a second pressure roller; the first pressure roller and the second pressure roller are same in length; the outer diameter of the first pressure roller is greater than that of the second pressure roller; the ends of both the first pressure roller and the second pressure roller are insulated; the first pressure roller and the second pressure roller are mounted in parallel on the suspension beam; the controller is connected with one end of each pressure roller through a lead wire. The exposed steel wire detection device can be used for automatically detecting a steel wire exposed from a belted layer of a tire, thereby avoiding product quality defects and saving resources; an alarm device is arranged, so that when the exposed steel wire is detected, an alarm can be given in time to notify working personnel.

The invention discloses a method for designing a tooth profile contour line of a spinning roller during spinning forming of an internal and external tooth part, which comprises the following steps of: firstly, determining a tooth number ratio between a core mold and the spinning roller and the tooth number of the spinning roller, and then obtaining a primary shape of the tooth profile contour line of the spinning roller by adopting a generation method according to an external contour shape of the internal and external tooth part; and according to the contact and friction conditions between each deformed part of the blank and the core mold or the spinning roller in the spinning forming process and the generated non-uniform deformation, the initial shape of the tooth profile of the spinning roller is adjusted by combining the wall thickness requirement of the internal and external tooth part, so that the tooth profile line of the spinning roller is obtained. The defects in the prior art are overcome.

The invention provides an automatic panel stacking adjusting device and a control method. The automatic panel stacking adjusting device is characterized by comprising a stacking trolley, a panel storage tray, two groups of beaters and at least four laser range finders; the panel storage tray is placed on a platform of the top of the stacking trolley, and the edge of the panel storage tray is parallel to a working datum line; the at least four laser range finders are correspondingly arranged on the periphery of the stacking trolley and are aligned with the panel storage tray; the two groups ofbeaters are correspondingly mounted through fixing beams; the fixing beams are parallel to the working datum line and have a moving degree of freedom perpendicular to the working datum line; the beaters have the degree of freedom of translation on the fixing beams; each fixing beam and each beater are correspondingly driven by a motor and are connected with an encoder; and the motor, the laser range finders, the encoder and the beaters are correspondingly connected with a controller. The production efficiency of a shearing line is improved, and the time for manually adjusting the positions ofthe panel storage tray and the beaters is shortened.

The invention relates to a deformed cigarette packet detecting and removing device and method and a cigarette packet conveying device. The deformed cigarette packet detecting and removing device comprises a deformed cigarette packet detection mechanism and a deformed cigarette packet removing mechanism, wherein the deformed cigarette packet detection mechanism is arranged on a cigarette packet conveying passageway and detects arrival of deformed cigarette packets through exterior outline extrusion force of the deformed cigarette packets, and the deformed cigarette packet removing mechanism is arranged on the downstream portion of the conveying passageway of the deformed cigarette packet detection mechanism and removes the deformed cigarette packets from the conveying passageway. According to the deformed cigarette packet detecting and removing device and method and the cigarette packet conveying device, the situation that the thicknesses of the cigarette packets are increased after deformation is taken into consideration, whether the deformed cigarette packets arrive or not can be detected by detecting the exterior outline extrusion force of the deformed cigarette packets through the system, and therefore the deformed cigarette packets can be removed out of the conveying passageway on the downstream portion of the conveying passageway after arrival of the deformed cigarette packets is detected, the deformed cigarette packets are prevented from flowing into the next procedure, damage which is caused by the deformed cigarette packets to downstream devices is avoided, and product quality defects caused when the deformed cigarette packets flow into finished products are avoided.

The invention relates to a transfer platform of a carrier. The transfer platform comprises a base, a transfer mechanism and a carrying mechanism, wherein the carrying mechanism is movably installed onlinear guide rails fixedly arranged on the two sides of the base through sliding blocks fixedly arranged on the two sides of the bottom surface, the transfer mechanism is fixedly arranged on the bottom surface of the carrying mechanism, and the transfer mechanism provides driving force for the the carrying mechanism to carry out reciprocating motion along the linear guide rails. According to thetransfer platform of the carrier, the carrier on the carrying mechanism can be accurately positioned, the position accuracy of the carrier in the packaging process can be improved further due to the positioning accuracy of the transfer mechanism, and the it is avoided that a ceramic plate is damaged due to poor positioning. In addition, the problems of site limitation and insufficient moving rangein the mechanical arm packaging process can be solved.

The invention discloses a provides a hook-free side plate hanger for a suspension chain, which relates to the technical field of car processing equipment, and solves the problem that product quality is affected as appearance is affected by punching in a square tube and even later-stage repair welding and hole plugging is needed while an existing hanger is in use. The hook-free side plate hanger comprises a main body, a pedestal, an inner slot and a clamping plate, wherein the pedestal is arranged on the bottom of the main body; the top of a left rotary plate inside the inner slot is equipped with a rotary rod through a component; the clamping plates are of C-shaped structures, and vertical slots in the tops of the clamping plates are formed in the bottom of the pedestal; and vertical shafts on the tops of the clamping plates are separately mounted on the bottom of a left rotary plate and the bottom of a right rotary plate. Materials such as the square tube are transported by the clamping plates, so that transportation on the square tube by a punching or welding way is reduced; during hanging, the two C-shaped clamping plates move relatively to fit to a rectangular tube, so that a surrounded shape is formed for clamping the rectangular tube, and thus, product quality defects and unnecessary cutting repair-welding operation caused by the original punching way and the original suspended part welding way can be avoided.