39results about How to "Reduce the number of mold repairs" patented technology

The invention provides a concrete mixing blade die-face design system and a method based on springback compensation, which comprises three modules, that is, a die-face automatic springback compensation design module based on numerical simulation, a die-face CAD reconstruction design module, and a die-face correction module based on reverse engineering, thus a concrete mixing blade die-face CAD-CAE-CAD integrated system based on the springback compensation is formed, and geometric errors produced after the blade being formed are required to satisfy design requirements on the level of numerical simulation, thus reducing correction times; and the process of converting a CAE model after a virtual die repair into a CAD geometric model which can be designed and manufactured is finished, a digital model after the blade being actually pressed is acquired by utilizing a reverse engineering technology and then is compared with the required design shape of the blade, and springback deviation is obtained so as to be used for guiding the actual die repair process of the blade, thus correcting the residual springback deviation and further improving the precision of the springback compensation on the basis of numerical simulation springback compensation.

The invention provides a springback compensation method for creep age forming. The method comprises the following steps: Step S100, based on MSC.MARC commercial finite element software, constructing creep age forming finite element simulation; Step S200, weighting a springback iterative compensation process based on a molding surface of a finite element simulation result; and Step S300, considering a reverse compensation process of high temperature molding surface thermal expansion effect. The method considers the influence of the strength of a component on surface compensation, the influenceof a component feature structure on surface compensation, and reverse compensation of thermal expansion of a high temperature molding surface. A component formed by the model can still meet the engineering error requirement after being cooled.

Disclosed is a method for designing a die molded surface for forming a groove-shaped part. An inner molded surface M of the part is extracted, and section lines Pj of the extracted inner molded surface of the part are manufactured; the various section lines Pj are corrected sequentially through correction basis points, and new section lines are obtained; and surface fitting is carried out on the obtained section lines, and a new mold outer molded surface is obtained. The maximum deformation of the groove-shaped part formed through the mold outer molded surface determined through the method is reduced to 0.2mm from 1.5mm, and the design requirements of the part are met. Compared with the traditional technology, when the mold molded surface is designed, rebound deformation obtained after part deformation is considered in the method, and the problem that according to a traditional method, an inner molded surface of a composite material groove-shaped part is directly extracted to serve as the mold molded surface for manufacturing the composite material part, the part size cannot meet the design requirement is solved; and the mold repairing frequency of a follow-up mold is reduced, and therefore the production manufacturing cost is reduced, and the production efficiency is improved.

The invention provides a mould testing technology of an injection mould. Partial technological parameters in the mould testing technology are compared and analyzed, so that the mould testing technology is adaptively adjusted, and all the technological parameters required by the complete mould testing technology are acquired. Therefore, an existing mould testing technology of relying on manual experience judgment to determine the mould testing technology is replaced, accuracy of the mould testing technology is enhanced, and number of mould testing and mould repairing and corresponding mould testing and mould repairing cost are reduced.

The invention discloses an aluminum profile production process. According to the aluminum profile production process, a mold and an extrusion process used in an existing aluminum profile extrusion process are improved, so that extruded aluminum profile A and B surfaces are integrated, two matched products of an aluminum profile variety can be simultaneously extruded, and the turnover rate of a finished frame is improved; and meanwhile, a horizontal powder spraying process is improved into a vertical powder spraying process to enable the powder spraying to be more comprehensive and thorough, the quality of powder coating is improved, the appearance is better molded, a powder spraying system in the powder coating process is improved, and the improved powder spraying system does not have thephenomenon of powder spraying outwards during use, so that the environment of a powder coating workshop is improved, workers are further protected from threat of spilled powder to body parts such as the respiratory tract, and more environmental protection and hygiene are achieved.

The invention relates to a modular bending die and bending method for an aluminum profile. The bending die comprises an upper die base, a lower die base, a female die, a male die and a CAE analysis system; the CAE analysis system is used for designing parameters of the male die and the female die in combination with rebound compensation analysis, the male die and the female die are machined according to the parameters; the male die is arranged at the bottom of the upper die holder, the female die is arranged on the lower die holder, and the male die and the female die are oppositely arranged up and down; the female die is of a block structure and consists of a plurality of female die modules; a groove is formed in the female die, the aluminum profile is arranged on the groove, and the female die and the male die bend the aluminum profile according to stamping parameters set by the CAE analysis system; and the female die modules can be used for independently die repairing according to rebound amount of the aluminum profile. According to the modular bending die for the aluminum profile, the repeated die repairing process due to the fact that the difficulty of adjusting the rebound amount during bending forming of the aluminum profile is large is solved, the independent die repairing is realized, the die development period and cost are reduced, the production efficiency is improved, the debugging period is shortened, and the flexibility of the die is improved.

The invention provides a covered edge forming method and device. The covered edge forming method comprises the following steps that obtaining is carried out, a preset product parameter and a preset process parameter are obtained; determining is carried out, a product simulation forming parameter is determined according to the preset product parameter and the preset process parameter; and judging is carried out, the product simulation forming parameter is compared with the preset product parameter, if a comparison result does not meet the preset requirement, the preset process parameter is modified, the determining step and the judging step are repeated, until the product forming meets the quality requirement. According to the covered edge forming method, if the comparison result does not meet the quality requirement, the preset process parameter can be modified repeatedly until meets the quality requirement, that is, whether a product forming state meets the quality requirement or notis verified in advance, and mould repairing times are reduced, so that product design cost is reduced; and meanwhile, the covered edge forming method no longer depends on the technical requirement andexperience for molding analysis, so that the analysis result is more accurate.

The invention relates to the technical field of touch, and provides a touch panel, a touch feedback method and terminal equipment. The touch panel can be applied to terminal equipment, the touch panel comprises a touch module and a vibration motor, and the vibration motor and the touch module are fixed; and the vibration motor vibrates by adopting the corresponding target parameters in response to a touch operation acting on the touch module. According to the technical scheme provided by the embodiment of the invention, vibration feedback is used for replacing a springback structure with a stroke in an existing structure for touch feedback, many defects of the structure are avoided, stroke-free design can be realized, and stroke-free touch sensing is achieved; and mechanical springback design is not needed, so that the assembly difficulty of parts is reduced, the yield is increased, the aesthetic property is improved, the fatigue life is prolonged, and the like. In addition, reduction of design adjustment, testing and mold repairing times in the research and development stage is facilitated, manpower and material resources are saved, and the production research and development cost is reduced.

The invention discloses a pin needle structure and an electronic device comprising the pin needle structure. The pin needle comprises a first body part located at an upper position and a second body part located at a lower position. An end portion of the first body portion remote from the second body portion and for forming an electrical connection with an internal conductive member of the electronic device; An end portion of the first body portion adjacent to the second body portion and an end portion of the second body portion adjacent to the first body portion are combined and fixed to forman electrical connection; An end portion of the second body portion remote from the first body portion is used for forming an electrical connection with an external circuit. The two-stage pin pin structure and the electronic device including the pin pin structure can avoid damage to the pin pin and the device plastic housing during in-mold injection molding.

The invention discloses a stamping die repairing method which is carried out according to the following steps that S1, an initial die is subjected to stamping production, and a stamping workpiece is obtained; s2, the obtained stamping workpiece is detected on a detection tool, and core data of all parts of the stamping workpiece are detected; s3, the corresponding part of the stamping die is trimmed through the core data obtained through reference; s4, the steps S1 to S3 are circulated until the size of the stamping die meets the tolerance requirement; by the adoption of the method, the stamping workpiece is comprehensively detected through the special detection tool, after core data of stamping die repairing are obtained through detection of the detection tool, accurate die repairing is conducted on the stamping die according to the core data, therefore, the number of times of die repairing of the stamping die is reduced, the stamping workpiece can reach the qualified tolerance more quickly, and the production efficiency is improved. The die repairing efficiency of the stamping die is effectively improved, the production efficiency and the percent of pass are improved, and the cost is saved.

The invention provides a screening method for macromolecule lenses, which comprises the steps of preparing preliminary dies; screening and obtaining die cavities having required functions by using the preliminary dies; manufacturing a production die; screening and obtaining die cavities having proper focal lengths for manufacturing a spherical lens by using the preliminary dies; screening and obtaining die cavities with required focal lengths and aberrations for manufacturing an aspheric lens by using the preliminary dies; screening and obtaining die cavity groups with required equivalent focal lengths and chromatic aberrations for manufacturing a lens battery by using the preliminary dies. The preliminary dies have 3 to 1000 die cavities, however, the preliminary dies preferably have 4 to 400 die cavities; the die cavities of the preliminary dies shall be marked with numbers or letters; the flow passages of the preliminary dies and the production die are balanced; the volumes of the die cavities of the preliminary dies are balanced. In the screening method, die cavities with required functions are screened and obtained by using the preliminary dies; the production die is used for manufacturing the macromolecule lens. The die screened and manufactured according to the functions can reach high precision easily; the frequency to repair the dies is reduced.