19 results about "Skin stretch" patented technology

A vehicle seat includes a frame; a pad disposed on the frame; a skin covering the pad; an airbag device attached to the frame, and including an airbag and an inflator; a guide member that is provided on an inner surface side of the skin at a position corresponding to the airbag device, and that guides a deployment of the airbag; and an engagement member that pulls the skin in the pad. A length in an up to down direction from a first upper end to a first lower end of the engagement member is longer than a length in the up to down direction from a first upper end portion to a first lower end portion of a first end portion of the guide member.

The utility model relates to the field of stretching probes, in particular to a stretching probe for migratory locust epidermis testing, which comprises a support table. The texture analyzer main body is mounted at the rear end part of the supporting table, the fixture base is arranged at the upper end part of the supporting table, a first fixture seat is mounted at the upper end part of the fixture base, and a second fixture seat is arranged at the upper end part of the first fixture seat; the end part of one side of the first clamp seat and the end part of one side of the second clamp seat are rotationally connected with plug bolts; springs are arranged on the outer sides of the plug bolts; the texture analyzer main body and the clamp base are placed through the supporting table, the friction fixing seat is driven to move through the knob bolt, and the friction fixing seat is positioned and supported through the plug bolt and the spring, so that the friction fixing seat is matched with the first clamp seat and the second clamp seat to clamp migratory locusts; the migratory locust is protected through the friction plate, so that the stability is improved, and an epidermis stretching test can be conveniently carried out through the texture analyzer main body.

An ungrounded haptic device adapted to be held or worn by a user for simulating kinesthetic forces includes a skin stretch mechanism and at least one vibration generator. The skin stretch mechanism provides haptic shear forces to the skin of the user to simulate continuous and / or persistent forces. A vibration generator mounted to the haptic device provides haptic vibrations to the user to simulate transitory forces. Parameters of the haptic shear forces and parameters of the haptic vibrations are configured to operate complementarily to simulate the kinesthetic forces.

The present application relates to skin stretch forming technical field, and disclose a kind of stretch forming equipment for aluminum alloy skin, including rack, the inside of the middle part of the rack is equipped with jacking mechanism, the upper end of the jacking mechanism is connected with discrete die, the both sides of the rack are respectively provided with multiple groups of independent control flexible clamping mechanism, and the flexible clamping mechanism is symmetrically arranged about the discrete die;The flexible clamping mechanism includes stretch assembly and pressing assembly, the stretch assembly is installed on the pressing assembly, and the pressing assembly is installed on the hydraulic caliper for clamping skin edge.The present application is lifted by the lifting movement of multiple independent control punch assemblies in discrete die, combined with the multilayer composite structure of flexible pad layer, can quickly generate any required curved surface shape without replacing the whole die, and the pneumatic adjusting cavity is independently adjusted by each area inflation pressure, effectively compensates the "step effect" between discrete punch.

The application discloses an intelligent skin stretching closer, which comprises a cable, a skin traction fixing device, an adjusting device, a driving device, a control device and a pressure sensing device; the cable is used for penetrating into the skin traction fixing device, the adjusting device and the pressure sensing device and bears the traction force of the driving device to the skin; the power device is used for pulling the cable and automatically adjusting the distance between the two skin traction mechanisms to realize the contraction and closure of the skin to be pulled on both sides of the wound; the closer further comprises a driving motor fixedly connected with a female part, a control panel electrically connected with the driving motor and a programmed controller; the closer can realize automatic control, reduces the operation and makes the process controllable.

The application provides a kind of longitudinal skin stretcher jaw shape control method based on machine vision, which includes: S1, install image acquisition system;S2, calibrate camera by Zhang Zhengyou calibration method, establish the relationship between target pixel point and corresponding target point position in space;S3, turn on the light source, obtain the camera shooting image, and pretreat the image;S4, edge extraction is carried out on the pretreated gray scale image;S5, the edge gray scale image curve is fitted by least square method, the stroke of stretch machine jaw shape control hydraulic cylinder is adjusted, and longitudinal skin stretcher jaw shape control is realized.The application can realize accurate detection of skin blank and jaw state, make the jaw shape and end face shape consistent, and complete the fast and accurate feeding of skin blank into the jaw.The application applies machine vision recognition technology to aviation special equipment, improves the skin stretching precision and the efficiency of blank feeding into the jaw, and helps the transformation and upgrading of equipment automation and intelligentization.

The invention provides a yoke frame swing structure of a skin stretcher, which comprises a seat bracket rotating shaft, a rack, a bracket sliding block, a rotating shaft and an oil cylinder, and can be driven by the oil cylinder to rotate, so that the pitching angle of a jaw of the stretcher can be controlled and adjusted with high precision, and the requirement of complex curved surface forming in skin part manufacturing can be met; the number of corollary equipment and procedures needed in the existing multi-direction curved surface machining process is reduced, and the manufacturing cost is remarkably reduced while the production efficiency is improved.

The utility model discloses a bionic epidermis stretching device which comprises a modeling supporting assembly, epidermis and a driving assembly, the driving assembly is connected with the modeling supporting assembly, and the epidermis is assembled on the outer surface of the modeling supporting assembly. By implementing the device, the friction force can be reduced, the driving load can be reduced, and the movement effect of the skin can be optimized, so that unnatural wrinkles can be avoided, and the bionic effect and the display effect can be further improved.

The application provides a sunken skin stretch forming path planning method, and belongs to the technical field of stretch forming path planning, and the method comprises the following steps: S1, acquiring the design parameters and forming constraint conditions of the sunken skin; S2, establishing a finite element model of the sunken skin; S3, initial stretch path global planning based on an echo state network-cell mapping hybrid algorithm; S4, finite element simulation verification of the initial stretch path; and S5, stretch path iterative optimization based on a fractional order Kalman filter-dove search hybrid algorithm. The application solves the problems of low stretch forming path planning precision, many forming defects, poor process stability, weak technical reproducibility and the like of the existing sunken skin stretch forming path planning.

This invention provides an adaptive iterative optimization control system for skin forming equipment based on digital twins. It establishes a closed-loop architecture encompassing detection, simulation, and control, and utilizes digital twin technology for simulation and inverse optimization calculation of process parameters. Compared to existing forward trial-and-error and open-loop control methods, this significantly improves the efficiency and accuracy of parameter optimization. The system also establishes a process knowledge base based on a self-learning mechanism, continuously acquiring and accumulating experience from each production run, and continuously improving the accuracy of the digital twin model and the efficiency of the optimization algorithm. This system has strong applicability and can meet the high production requirements of large and complex skins.

The utility model belongs to the skin stretching technical field, concretely relates to a kind of automobile skin stretching device, including transverse stretching mechanism, two transverse stretching mechanisms, and longitudinal stretching mechanism is provided between two transverse stretching mechanisms;Transverse stretching mechanism includes mounting plate, and the upper slide of mounting plate is equipped with translation seat, and the one end of translation seat is equipped with several multi-angle clamping mechanisms;Multi-angle clamping mechanism includes electric telescopic handle, and electric telescopic handle is installed in the inside of translation seat, and the output of electric telescopic handle is fixed with ball sleeve, and the inside rotation of ball sleeve is connected with ball shaft.The utility model uses zoned combination jaw clamping, and different pressure is applied to each block area of clamping place according to thickness and inclination angle, and the plate material is kept uniform stress, and self-adapting ball shaft connection is simultaneously used, and jaw position can be self-adapting to produce rotation when longitudinal tension is applied, avoid the plate material of jaw position to appear bending phenomenon, effectively avoid the risk of fracture.

The movable pedal of the skin stretching equipment comprises a movable pedal assembly, a power system, a supporting frame and a connecting frame, the requirement for flexible adjustment of the area of a passing area in the equipment can be met through the size-adjustable modular design, and the problem that the pedal needs to be disassembled and assembled repeatedly when equipment assemblies such as a mold and a clamp tool are replaced is solved; and meanwhile, the manufacturing cost is relatively low.

The invention relates to the technical field of surgery, in particular to an adjustable skin distractor and a distracting method.The adjustable skin distractor comprises an integration plate and a distracting unit; the stretching unit comprises a sliding block, a sliding assembly, a mounting plate, a kirschner wire, a driving assembly and a locking assembly; sliding columns are arranged on the two sides of the sliding block in the first direction; the movable assembly is used for achieving movement of the sliding block in the second direction, achieving swinging of the sliding block around the axis of the sliding column and achieving four degrees of freedom of lifting, rotating around a vertical shaft, horizontal sliding and swinging around a horizontal shaft of the kirschner wire, so that during initial installation, the kirschner wire of each stretching unit can be independently adjusted to the optimal position and angle, and the operation is convenient. It is ensured that the kirschner wire is inserted in the mode of being perpendicular to the local curved surface of the wound, accurate attachment to the arc-shaped or irregular wound surface is achieved, and the effects that traction force on different positions is consistent, and the traction position is more accurate are achieved.

The invention discloses a skin stretch-forming simulation method, a skin stretch-forming simulation device, a readable storage medium and electronic equipment, and the specific implementation scheme is as follows: the motion trails of multiple clamping devices in the stretch-forming process are obtained, the multiple clamping devices are correspondingly arranged on the two sides of a mold, and the clamping devices are used for clamping a skin; each clamping device on one side of the die and each clamping device on the opposite side form a clamping device pair; determining a target time step when a connecting line of the clamper pair and the mold are in an intersection state for the first time based on the position of the clamper pair on the movement track in each time step in the stretch forming process, and determining the stretch forming multiple of the intersection part of the connecting line of the target time step and the mold; and on the basis of the stretch-forming multiple of the target time step intersection part, sequentially determining the stretch-forming multiple of each time step intersection part after the target time step as a simulation result. According to the rapid simulation method for skin stretch forming, the calculation efficiency can be effectively improved, and the time consumption of skin stretch forming simulation can be reduced.

The invention relates to the field of die design, and provides a profile design method of a variable-curvature skin stretch-forming die in order to improve the production efficiency and reduce the cost, traditional stretch-forming and correction are combined, one-time forming of a skin is achieved through one set of die, the production process and turnover time are remarkably shortened, and the manufacturing efficiency is improved. Meanwhile, the design, manufacturing and maintenance cost of a set of traditional correcting die is omitted, tool resources are saved, and the production cost is reduced. And the integral molded surface design can more conveniently control the overall flow and local deformation during material forming, so that the forming precision is favorably controlled, and the part quality is improved.

The utility model discloses a skin stretching device, and relates to the technical field of metal plate processing. The device comprises a rack, a lifting assembly is arranged in the middle of the rack and comprises a workbench and a lifting driving device connected to the bottom of the workbench, the lifting driving device is used for driving the workbench to longitudinally move relative to the rack, a bending die holder with the top being an arc-shaped face is arranged on the workbench, and the portions, located on the two sides of the workbench, of the rack are each provided with a sliding table. The bottom of each sliding table is connected with a horizontal driving device installed on the machine frame, the horizontal driving devices are used for driving the sliding tables to transversely move relative to the machine frame, the sliding tables are provided with stretching assemblies used for stretching the skin workpieces, the stretching assemblies comprise belt pulling mechanisms and clamp mechanisms, and the clamp mechanisms are located above the belt pulling mechanisms. According to the skin stretching device, the corresponding stretching structure can be selected and used according to the thickness and the stretch-bending amplitude of the skin workpiece, and the skin stretching device is suitable for machining skin workpieces with different thicknesses and stretch-bending amplitudes.

The present application relates to the field of mold design, in order to improve the production efficiency while reducing the cost, the profile design method of the variable curvature skin stretch-draw die is provided, the traditional stretch-draw is combined with correction, the skin is formed once through a set of die, the production process and turnover time are significantly reduced, the manufacturing efficiency is improved. Meanwhile, the present application saves the design, manufacturing and maintenance cost of a set of traditional correction die, saves the tooling resources, reduces the production cost. The integrated profile design can more conveniently control the overall flow and local deformation of the material forming, is favorable to control the forming precision, improves the part quality.

The utility model belongs to the technical field of plate edge covering, specifically relates to a plate skin covering device, including operation platform, skin stretching mechanism and push skin mechanism, the operation platform is equipped with the placement station in, skin stretching mechanism includes clamping stretching part and first motion drive part, first motion drive part sets up on operation platform, just with Clamping stretching part drive connection, clamping stretching part is equipped with clamping cavity, clamping cavity sets up the top of placement station, push skin mechanism includes second motion drive part and card catch push skin part, second motion drive part is connected on operation platform, just with Card catch push skin part drive connection, card catch push skin part is equipped with push skin cavity, push skin cavity sets up the top of placement station, the utility model discloses can reduce the operation of manual stretching skin, and improve the order and fluency of operation.