11results about How to "Solve indentation" patented technology

The utility model discloses a kind of forming die of automobile longitudinal beam roll-pressing outer web surface without indentation, can gradually process and manufacture into U-shaped beam with strip steel, this set of die is composed of sixteen pass roller groups, first fix web surface, then gradually roll-pressing into 90 degrees by gradually changing from 0 ° to wing surface, then overbend stress relief, finally wing surface is shaped at 90 degrees.Changing the traditional practice that the inner vertical surface of upper web surface roller is a line, on the basis of guaranteeing roll shape effect, the inner vertical surface of upper web surface roller in different pass is staggered in layers, fundamentally solve the problem that indentation is formed in the same position of the outer cylindrical surface inner side surface of upper web surface roller repeatedly roll-pressing the web surface of U-shaped beam.

This invention belongs to the field of bipolar plate testing technology, specifically an automatic perforation testing device for hydrogen production bipolar plates. It includes a support base with an adjustable height frame on top; a load-bearing device on top of the adjustable height frame for holding the bipolar plate; and a rotating component located at the axis on the upper surface of the load-bearing device for twisting the bipolar plate. The load-bearing device includes a metal frame with fixing rods evenly inserted into its inner wall. This device can replace manual testing. Through a scanning component at fixed points, it twists the clamped and rotating bipolar plate, thereby detecting the flatness of the perforations on the outer surface of the bipolar plate. To ensure accuracy, the rotation speed and number of rotations of the bipolar plate can be controlled, ensuring the scanning component can perform a comprehensive inspection of the bipolar plate and avoiding missed or incorrect measurements.

The utility model discloses a clamping mechanism for special-shaped pipe fitting processing, which relates to the technical field of special-shaped pipe fitting clamping appliances and comprises a double-layer supporting table, two shells are mounted at the upper end of the supporting table, hydraulic grooves are longitudinally mounted at close ends of one sides of the two shells, a plurality of hydraulic pipes are mounted in the hydraulic grooves, and sliding strips are mounted at two ends of the shells respectively. According to the flexible clamping device, through cooperation between the rubber plate and the push table, flexible clamping is achieved, the problems that traditional special-shaped surface contact is prone to causing stress concentration or slipping, and clamping damage or indentation can be caused are solved, clamping stability is improved, and the metal surface is protected; and through cooperation of the spring, the push table and the rubber plate, the clamping mechanism adapts to multiple specifications and sizes, the problem that the clamp customization cost is increased due to the fact that a traditional clamping mechanism cannot be compatible with the multiple specifications and sizes is solved, and the product compatibility is improved.

This utility model discloses a non-marking bending device for a bending machine, relating to the field of sheet metal processing technology, aiming to solve the problem of indentation easily generated by traditional bending processes. It includes an adaptive bending table and a bending cutter. The adaptive bending table includes a base with symmetrical arc-shaped grooves at its top. Arc-shaped protrusions are connected within the grooves, and the tops of the protrusions are connected to movable plates. The bending cutter head is located directly above the contact point between the two movable plates. The arc-shaped grooves and protrusions are concentric and compatible. The contact point between the movable plates has rounded corners. The base and both sides of the protrusions are connected to springs via pins, with the pins eccentrically connected to the protrusions. A positioning plate is mounted on the top of the movable plates to form a work station area. During bending, the cutting cutter presses down, driving the movable plate to deflect, achieving non-marking bending of sheet metal parts. Springs assist in resetting, and the positioning plate ensures accuracy, combining non-marking processing, precise positioning, and efficient operation.

The invention relates to a punching device for filter machining and a machining method, and relates to the field of filter machining equipment, in particular to the punching device for filter machining and the machining method. The punching device comprises a machining platform and a punching mechanism above the machining platform, a punching hole and a flattening mechanism are arranged on the machining platform, the flattening mechanism is composed of a flattening strip and a flattening driving assembly, and the flattening strip is pressed on a panel to be punched through a pull rope. Furthermore, a pair of leveling strips is arranged and is fixed in series through a positioning ring and a positioning pile, and meanwhile, a dustproof sleeve and dustproof scales are arranged, so that dust is effectively prevented from entering a punching area. The punching device achieves the effects of improving the punching precision, reducing the rejection rate and prolonging the service life of equipment.

The utility model relates to the technical field of stamping, in particular to stamping equipment used for stamping a keyboard key area. Comprising a rough punching die and a fine punching die. The rough punching die comprises a rough punching module and a first static die module; the rough punching module is provided with a first punching part and a first profiling convex part, the first punching part is arranged on the surface of the rough punching module in a protruding mode, the first profiling convex part is arranged on the periphery of the first punching part, the first punching part is provided with a first punching through hole, and a material pressing convex part is arranged on the edge of the first punching through hole; the die further comprises a fine stamping die set and a second static die set, the fine stamping die set is provided with a second stamping part and a second profiling convex part, the second stamping part is arranged on the surface of the fine stamping die set in a protruding mode, the second profiling convex part is arranged on the periphery of the second stamping part, and the second stamping part is provided with a second stamping through hole. According to the stamping equipment, generation of indentations can be reduced or even avoided, the production cost is reduced, and the product competitiveness is improved.

The utility model provides a clamping device and a case unpacking machine with the same, and the clamping device comprises a base frame which is used for supporting a clamped piece and comprises a feeding end and a discharging end; the pressing mechanism is movably arranged on the base frame in the preset direction, the pressing mechanism comprises a connecting piece, a pressing piece and an elastic piece, the connecting piece and the pressing piece are arranged in a spaced mode, the elastic piece is connected between the connecting piece and the pressing piece, the pressing piece is located on the side, facing the discharging end, of the connecting piece, and the clamped piece is arranged between the feeding end and the pressing piece; the preset direction is parallel to the direction from the feeding end to the discharging end; and the driving piece is connected with the connecting piece and applies driving force for moving towards the discharging end to the connecting piece. According to the technical scheme, the problem that indentations are generated on the surface of the clamped part when a push plate pushes the clamped part to move in the related technology is effectively solved.

The invention relates to a high temperature resistant and anti-aging injection molding material and a preparation method and application thereof, belonging to the technical field of polymer materials. The raw material components of the injection molding material include polycarbonate, 5-phenyltetrazolyl, isooctyl thioglycolate, high silica glass fiber, extreme pressure polyurea grease, an anti-deformation modifier and coral powder; wherein the polycarbonate, high silica glass fiber and coral powder are used to prepare a master batch; the master batch and other components are uniformly and stably foamed and molded by an injection molding machine, and the obtained product solves the product deformation and shrinkage caused by large wall thickness, effectively ensures the dimensional stability; and can have good high temperature resistance and crack resistance; demoulding is smooth, and fracture during demoulding is effectively prevented, and is suitable for lamp holder products with complex structures.

The present application discloses a multi-point crack monitoring device for geostress testing by hydraulic fracturing, comprising an upper packer, a fracturing section, and a lower packer coaxially connected in sequence, a camera module with an outer diameter larger than that of the fracturing section being fixed at both ends of the fracturing section, at least three cameras being coaxially arranged on one side of the camera module facing the water outlet in the middle of the fracturing section, a fill light being arranged between the cameras, and a storage unit connected to the control unit signal and a built-in power supply unit being arranged in the camera module. The present application sets up camera modules with multiple cameras and fill lights at both ends of the fracturing section, which can intuitively record the process, direction, and position of rock wall cracks throughout the entire process without blind spots, avoiding the tedious alternating operation of fracturing and impression in impression testing, realizing the synchronization of fracturing test and crack observation, not only significantly improving the efficiency of crack detection, but also improving the accuracy of crack location, with the characteristics of reliable structure, simple operation, and high test efficiency.

The bending die device for the profile bending machine comprises a driving die roller and two driven die rollers, the driving die roller and the driven die rollers are made of polytetrafluoroethylene materials, and the driving die roller and the driven die rollers are axially and circumferentially positioned on a driving shaft and a driven shaft respectively, and the upper ends of the driving shaft and the driven shaft extend out of the upper end face of a shell of the profile bending machine. The upper end of the driving shaft is fixedly connected with a pressing and fixing device which is matched with the upper end of the driving die roller and used for pressing and fixing the driving die roller to the driving shaft, and a pressing assembly used for pressing and fixing the driven die roller to the driven shaft is fixed to the upper end of the driven shaft. By optimizing the materials of the driving die roller and the driven die roller, the quality problem that the metal die roller causes indentations or scratches on the surface of a section bar when the section bar is bent is solved, the bending quality of the section bar is improved, the axial gap between the driving die roller and the driving shaft is eliminated, the transmission precision is improved, the stability and the reliability of the mounting structure of the driving die roller are good, and the service life of the driving die roller is prolonged. And the requirement of high pressure bearing capacity is met.

The utility model relates to a jacking positioning mechanism which comprises a jacking end which is arranged under a target position and can vertically ascend and descend, a first positioning assembly and a second positioning assembly which are connected with the jacking end, the first positioning assembly and the second positioning assembly respectively comprise a first positioning end and a second positioning end which can move in the direction perpendicular to the jacking direction, and the first positioning end and the second positioning end are oppositely arranged. The jacking positioning mechanism further comprises a third positioning assembly and a fourth positioning assembly, the third positioning assembly and the fourth positioning assembly respectively comprise a third positioning end and a fourth positioning end, the moving directions of the third positioning end and the fourth positioning end are orthogonal to the first positioning end, and the third positioning end and the fourth positioning end are oppositely arranged. The four positioning ends are located at the same horizontal height when the mechanism is in a positioning state and abut against the four edges of the rectangular plate correspondingly. According to the jacking and positioning mechanism, due to the adoption of the structural combination, synchronous, flexible and equal-height limiting of the four edges of the plate can be achieved in the jacking process, indentation and damage caused by clamping concentrated force are effectively avoided, and the adaptability and positioning stability of the high-precision plate are improved.