145 results about "Shape change" patented technology

The invention discloses a reversible metal 4D printing method based on hydrogel reversible deformation and a metal part, and belongs to the field of metal additive manufacturing. The method comprises the following steps: firstly, constructing a three-dimensional model comprising a hydrogel driving layer and a metal blank layer; respectively preparing hydrogel light-cured ink and metal or precursor slurry thereof; printing the two layers of materials sequentially or alternately by adopting a photocuring printer to obtain a composite green body; the hydrogel layer is dehydrated and shrunk through drying, the component is driven to generate preset shape deformation, the hydrogel layer absorbs water and expands through soaking, and reversible recovery of the shape of the component is achieved; and degreasing, selective reduction and sintering heat treatment are conducted on the component, and the compact final metal component is obtained. According to the invention, the independent hydrogel layer is used as a deformation driver, the dependence on the intrinsic phase change characteristic of a metal material is avoided, the material universality is extremely high, the method can be widely applied to 4D printing of various materials including refractory metal and high-reflection metal, and reversible control of shape change is realized.

A numerical control device includes an NC command decoding unit and a tool information storage / generation unit. The NC command decoding unit has a cut amount decoding unit for decoding the cut amount for rough machining, a machining shape generation unit for generating a finishing shape, a machining pathway generation unit for generating a path for rough machining, a tool direction provisional determining unit for provisionally determining the direction of the tool, a path joining assessment unit for assessing whether or not to omit a round-up operation, a machining path joining unit for generating a new path for directly moving to the end point of the next operation after the round-up operation if the round-up operation is to be omitted, and a tool direction determining unit for determining the direction of the tool at each machining shape change point on a path for rough machining including the new path.

The embodiment of the invention discloses a shape sensing method and system for a rope-driven continuum robot, at least two flexible sensors fixed in a spiral mode are arranged on a flexible framework, and the method comprises the steps that a universal shape sensing model is established based on a constant curvature hypothesis; for any joint module, driving the joint module to a test shape, and solving an actual fixed position of the flexible sensor by adopting a numerical iteration method based on the general shape sensing model; driving the joint module to a working shape, and solving an output value of a flexible skeleton shape parameter by adopting a numerical iteration method based on a general shape sensing model and an actual fixed position of the flexible sensor; and determining the shape of the robot based on the output value of the flexible skeleton shape parameter corresponding to each joint module. According to the method, the fixing precision does not need to be considered when the flexible sensor is fixed, the shape change of the robot is accurately sensed by establishing and calibrating the model, and the problems of high sensor mounting precision requirement and poor sensing reliability in an existing method are solved.

A multi-directional loading spin forming method for improving the wall thickness uniformity of corrugated pipes includes: mounting the fixed end of the pipe blank on a mandrel, with the free end of the pipe blank contacting the end face of a thrust plate; assuming that the wall thickness of the pipe blank remains constant during the spin forming process, with only the shape changing, the pipe blank is discretized into n micro-elements along the axial direction, maintaining the volume of each micro-element after deformation equal to that before deformation; based on the length difference of each micro-element before and after deformation, the specific displacement of the thrust plate when the spinning wheel moves to different waveform regions during the spin forming process can be obtained, and the axial displacement curve of the thrust plate is plotted to obtain the tail axial loading path; rotating the mandrel so that the spinning wheel contacts the pipe blank radially, the spinning wheel feeds according to the target waveform curve of the corrugated pipe, and simultaneously the thrust plate feeds according to the tail axial loading path, obtaining a corrugated pipe with better wall thickness uniformity. Compared with the spin forming results of the prior art, the maximum wall thickness difference of the corrugated pipe formed by the process of this invention is reduced by 25%.

To design an additively manufactured body that has strength equivalent to that of a desired injection-molded body. [Solution] The shape design method includes the steps of: dividing the shape of an anisotropic additive manufacturing body into an invariant region where shape changes are not permitted and a variable region where shape changes are permitted; designing the resulting variable region based on the rigidity of an injection molded body having the same shape as the anisotropic additive manufacturing body; performing structural analysis calculations using a structural analysis model of the additive manufacturing body obtained by combining the designed variable region and the invariant region; and determining whether the rigidity and strength of the additive manufacturing body obtained by the structural analysis calculations are within an acceptable range.

Provided is a substrate fabrication method allowing for easy separation of a carrier and a device layer. This substrate fabrication method includes: a step for preparing a laminate comprising, in the following order, a release layer and a device layer on a carrier; a step for obtaining a laminate with a resin layer by laminating a curable resin–containing resin layer on the carrier-side surface of the laminate; a step for changing the shape of the carrier or the laminate with a resin layer by subjecting the laminate with a resin layer to a curing treatment of the curable resin to shrink the resin layer, thereby pulling the carrier in a direction that follows the shrinkage of the resin layer; and a step for generating shear stress between the carrier and the device layer by utilizing the shape change of the carrier, thereby releasing the device layer from the laminate with a resin layer at the position of the release layer.

The invention discloses jig direction adjusting equipment, which belongs to the technical field of automatic production lines and comprises a rack, a speed chain conveying line fixedly mounted on the rack and a tool plate matched with the speed chain conveying line for use. A jacking mechanism, a direction adjusting mechanism and a stop positioning mechanism are mounted on the rack, and the direction adjusting mechanism comprises a supporting frame, a linear sliding table, an upper mounting frame, a lower mounting frame, a vertical floating assembly, a horizontal floating assembly and a direction adjusting assembly; by means of the mode, in the direction adjusting process, the vertical floating assembly and the horizontal floating assembly are matched, so that the direction adjusting assembly has the floating performance in the transverse direction, the longitudinal direction and the vertical direction, and the direction adjusting assembly adapts to the position deviation and shape change of the positioning jig; all the components are matched to achieve automatic and accurate orientation adjustment of the orientation of the positioning jig on the tool plate, and the requirement for continuous machining of batched workpieces is met.

The present application relates to the technical field of monitoring drilling and grouting integrated construction, and particularly relates to a visual monitoring method for drilling and grouting integrated construction. The present application can obtain the drilling shape in real time through a multispectral visual network, and periodically correct drilling operation parameters based on the drilling shape change rate, so as to more accurately adjust the drilling operation parameters based on the drilling condition, inject slurry into the stratum through the inner cavity of the drill rod connected with the grouting pump, and thus perform grouting operation at a suitable time, thereby improving the efficiency of drilling and grouting integrated construction. The construction state is determined based on the slurry diffusion radius, and whether to adjust the grouting pressure and the correction period of the drilling operation parameters is determined based on the construction state. The present application can be adjusted in time when the slurry flow path is blocked during drilling and grouting, thereby improving the drilling and grouting efficiency.

The application discloses a kind of automobile frame welding positioning fixture and welding process, it is related to automobile frame welding field, including welding table, the top surface of welding table is equipped with inner clamping mechanism, four are provided in the inner clamping mechanism, wherein one end of two inner clamping mechanisms is equipped with end clamping mechanism, one side of the inner clamping mechanism is equipped with outer clamping mechanism.The application is installed by the mounting plate of corresponding number of top pressure mechanism and linear drive mechanism according to the actual shape of the frame, the position of the top pressure mechanism is adjusted, the cylinder four control pressure rod is accurately pressed and contacted on the frame outside to be fixed, the installation of top pressure mechanism is facilitated by the setting of four linear drive mechanisms according to the needs of users, the top pressure mechanism is quickly disassembled by plug-in design, so that the application can adapt to the size and shape change of different vehicle models of frame, the frame is stably fixed and clamped, the versatility of the device is improved, and welding processing cost is reduced.

This invention relates to the field of fragrance processing technology, and more particularly to a fragrance extrusion device. The invention provides a fragrance extrusion device capable of adjusting the shape of the spice blocks as needed. A fragrance extrusion device includes a base, a guide rod, a lifting platform, and pressure columns. A guide rod is connected to the upper side of the base, and a lifting platform is slidably connected to the guide rod. Several pressure columns are equidistantly connected to the lower side of the lifting platform. Several material grooves adapted to the pressure columns are equidistantly opened on the upper part of the base. When the pressure plate moves downwards to engage with the material grooves on the base, it can extrude powdered raw materials into square spice blocks. When a shape change is required, the pressure plate is controlled to move upwards, causing a circular block to extend downwards. Then, an adjusting block is controlled to move upwards to block the material grooves. At this time, the circular block moves downwards to engage with the adjusting block, extruding the powdered raw materials into circular spice blocks. Thus, the shape of the spice blocks can be adjusted as needed.

The application discloses electric power fitting fixing frame, belongs to electric power fitting field, including two groups parallel distribution's main frame, two groups main frame outer surface fixedly connected with movable rod, movable rod rotationally connected with support rod one, support rod one outer surface upper and lower sides rotationally contact with main frame outer surface, two groups main frame between be provided with buffer assembly, buffer assembly include with support rod one outer surface fixedly connected with movable sleeve, main frame outer surface open with guide groove.Can realize through setting buffer assembly, through the shape change of capsule can effectively buffer absorption to support rod one received impact, thereby can effectively reduce the impact that support rod one received, not only can effectively reduce the vibration amplitude of split conductor, thereby can reduce the probability that whip of wire between each other occurs, simultaneously also can effectively improve the installation stability of wire.

The utility model relates to a short boat deformation testing mechanism and quartz boat detection equipment, a short boat comprises a first end face, a second end face and a plurality of first boat rods, the first end face and the second end face are respectively connected with two ends of the first boat rods, and the short boat deformation testing mechanism comprises a first positioning assembly and a second positioning assembly. The first positioning assembly clamps the first end face and positions the first end face; the second positioning assembly acts on the second end face and comprises a first abutting piece and a first distance measuring instrument. The number of the first abutting pieces is at least two, and the multiple first abutting pieces can movably abut against at least two non-parallel side edges of the second end face respectively. According to the scheme, the number of the first abutting pieces is at least two, and the multiple first abutting pieces can be movably abutted against at least two non-flat side edges of the second end face, so that the mechanism can measure the deformation degree of the multiple non-flat side edges of the second end face, and the detection efficiency of the deformation quantity of the side edges of the second end face is effectively improved.

Provided is a pneumatic tire for heavy load, which is capable of suppressing shape change caused by running and achieving improvement in cornering wear resistance. The tire (2) has a nominal flat ratio of 65% or less. The tire (2) has a tread (4) and a reinforcement layer (20). The reinforcement layer (20) has a belt layer (38) including a plurality of belt cords (44) arranged side by side, and a crown layer (40) including crown cords (52) wound in a spiral shape. The belt layer (38) has a plurality of belt plies (42) arranged in a radial direction. The crown layer (40) has a full crown layer (48) having two ends (48e) opposite across the equatorial surface, and a pair of edge crown layers (50) located radially outward of the ends (48e) of the full crown layer (48). In the axial direction, the ends (48e) of the full crown layer (48) are located outward of shoulder circumferential grooves (28s) formed on the tread (4).

This invention belongs to the field of soft alloy sheet rolling, specifically disclosing an alloy sheet rolling device, including a rolling frame, a feeding mechanism, a straightening device, and an adaptive rolling mechanism. Through screw-driven dual-stage roll gap adjustment and gear-type width correction, it achieves rapid shape change and anti-skewing conveying of soft alloy sheets of various thicknesses. Combined with a spiral-guided cooling chamber to enhance heat dissipation, and an adjustable lever with adjustable weights for adaptive pressure application to solve the problem of localized protrusions during rolling, and multi-roll linkage drive and anti-slip protrusions to ensure stable conveying, this invention overcomes the pain points of traditional devices such as slow shape change, uneven cooling, low precision, and easy slippage. It reduces finished product thickness deviation, improves finished product surface finish, increases shape change efficiency, and meets the high-quality rolling requirements of soft alloy sheets of various specifications.

The utility model relates to the technical field of glass bending, and provides a glass bending assembly which comprises a deformation bending mechanism used for bending glass and changing the shape and a driving mechanism connected with the deformation bending mechanism. When the glass is bent, the driving mechanism drives the deformation bending mechanism to move towards the bending direction of the glass; and after the glass is bent, the driving mechanism drives the deformation bending mechanism to reset. The deformation bending mechanism can adjust the self structure in real time according to the actual bending form of the glass, and the problem of stress concentration caused by the fact that a traditional rigid bending mechanism cannot adapt to glass deformation is effectively solved. The dynamic adaptive mechanism obviously improves the bending precision, is particularly suitable for forming processing of bending the glass at 90 degrees, and meanwhile, reduces the risk that the glass cracks or is damaged in the bending process.

The utility model provides an engine intercooling pipe assembly which comprises a deformation buffering piece, the deformation buffering piece is installed between the outer wall and the inner wall of the inner side of a pipe opening of a straight pipe section, the deformation buffering piece comprises a plurality of sets of buffering rods used for buffering deformation, the buffering rods are located in an annular area on the right side face of an installation disc, and an abutting ring is arranged on the right side face of the installation disc. Compared with the prior art, the utility model has the following beneficial effects: by arranging the deformation buffer piece, high-temperature gas enters the interior of the pipe orifice through the gas inlet structure, and the straight pipe section part on the right side part of the pressing part of the fastening hoop is easily influenced by high temperature, so that the straight pipe section part expands and deforms; the part, close to the fastening hoop, of the straight pipe section is expanded and buffered through the elasticity of the buffer rods, so that the phenomenon of fracture caused by excessive deformation of the interface position of the intercooling hose can be effectively prevented, and the service life of the intercooling hose is prolonged.

The present application relates to a kind of tooling fixtures, including main body seat, shape change cover and control piece, main body seat has sliding track, shape change cover can occur radial expansion to change its maximum diameter, the distal end of control piece has prop open part, prop open part is configured to be inserted in shape change cover, and the maximum diameter of shape change cover is adjusted by adjusting its relative position with shape change cover, shape change cover is configured to be released or relative locking by the adjustment of its maximum diameter with the hole of the piece to be clamped, control piece is slidably connected with main body seat along sliding track, and the relative position of prop open part and shape change cover is adjusted by sliding relative to main body seat.The tooling fixture has strong universality, and the structure design is applicable to any size of carpal pad, and when carpal pad is clamped, it is convenient, fast, the inner prop clamping force of prop open part to the inner step hole of carpal pad is controllable, can reduce the deformation of carpal pad, reduce the deformation of carpal pad due to external force.

This application relates to a method for determining the bending deformation of flat glass. The method determines the radius of curvature of the flat glass corresponding to its bending deformation based on the Stony relation and / or a relation based on the elastic-plastic deformation rate that reflects the setting of the width change. The Stony relation includes a first layer and a second layer, defined as follows: based on the integral value of the concentration distribution of the ion-exchange depth layer after ion exchange of alkali-containing glass and the depth calculated with the same area under the assumption of the same surface concentration along the depth direction (i.e., the effective diffusion length), the thickness of the flat glass corresponding to the effective diffusion length is considered as the first layer, and the thickness of the flat glass excluding the effective diffusion length is considered as the second layer. The plastic deformation rate included in the elastic-plastic deformation rate relation is based on the shape change caused by the structural mitigation effect due to α-relaxation, based on the width change that occurs after ion exchange in the flat glass. The average of the width change gradually changing with concentration in the ion-exchange depth layer is considered as a single value. Using a purely geometric method, it is assumed that the width change occurs from half the depth of the ion-exchange depth layer to half the depth of the non-ion-exchange layer, and this is defined as plastic curvature occurring with the width change.

The invention discloses an asymmetry degree controllable three-dimensional shape transition spray pipe design method and related equipment, and the method comprises the steps that a maximum thrust annular spray pipe restrained by a neutral flow surface is constructed as a mother flow field, and the neutral flow surface is a flow surface with opposite airflow radial velocity directions on the two sides in the maximum thrust annular spray pipe; mapping an elliptical inlet contour and a rectangular outlet contour of the three-dimensional transition nozzle to be designed to an inlet ring and an outlet ring of the mother flow field, and designing the three-dimensional transition nozzle on the premise that the area of the rectangular outlet contour is constant, the shape of the maximum thrust annular spray pipe is changed by adjusting the aspect ratio of the rectangular outlet contour or the radius of an inlet ring of the mother flow field, streamline tracking and flow pipe fusion are carried out based on the maximum thrust annular spray pipe with the changed shape, and the three-dimensional transition spray pipe with different asymmetry degrees is obtained. The invention aims to solve the problems that according to an existing three-dimensional shape transition spray pipe design method, a design frame has a fixed asymmetrical characteristic, the asymmetry degree regulation and control capability is lacked, and inlet and outlet positions and section shapes are difficult to flexibly match according to different task requirements; and the problem that the nozzle structure meeting the use requirement is difficult to design in a multi-configuration aircraft platform according to the specific configuration requirement is solved.

The utility model discloses surface fine texture impressing equipment for vacuum forming soles, and relates to the technical field of shoemaking, the surface fine texture impressing equipment comprises a supporting table, the top of one end of the supporting table is fixedly connected with a placing table through an opening, the top of the placing table is fixedly connected with a hydraulic cylinder, one end of the hydraulic cylinder penetrates through the top of the placing table, and the other end of the hydraulic cylinder penetrates through the opening. And an XY horizontal moving device is fixedly connected. According to the supporting table provided by the utility model, the shoe sole is cooled to avoid deformation on the basis of texture embossing after the shoe sole is positioned and fixed, so that the problem that the shoe sole is softened and even melted due to overheating during processing by the existing surface fine texture embossing equipment for the vacuum forming shoe sole is solved; the problems that the shape of a shoe sole is changed, the product quality is seriously influenced, positioning and fixing are lacked in the machining process, laser beam impact force and equipment vibration cause displacement and deviation of the shoe sole, and the grains on the two sides are asymmetric are solved.

The invention discloses a pet house with a prompting function, and relates to the technical field of pet houses. The problem that an existing pet house lacks a non-intrusive visual prompting function is solved. A pet house with a prompting function comprises a bearing part, a plurality of annularly-distributed supporting rods are arranged on the bearing part, fixing blocks are connected between the top ends of the supporting rods, a covering part is fixedly connected to the top of the bearing part, the supporting rods are used for supporting the covering part from the inside, and the supporting rods are used for supporting the covering part from the outside. And ear parts which are symmetrically distributed along the covering part are arranged at the top of the covering part. According to the invention, the emotion of a real animal is simulated through the vertical and drooping two form changes of the ear part at the top of the pet house, an extremely intuitive visual prompt which can be identified remotely is provided for a main person, and the dynamic state of the pet can be mastered without additional equipment.

The application discloses a manufacturing method for controlling flatness of stainless steel by adjusting cold rolling heat dissipation, comprising the following steps: (1) performing precision grinding and polishing on the roll of a rolling mill, and controlling the precision to be below 0.003 mu m; (2) cold rolling: adopting the rolling mill of step (1) to perform cold rolling on a stainless steel plate strip, adding 1-3 passes on the normal cold rolling process, dispersing heat generated during cold rolling through multiple cold rolling, controlling the cold rolling speed to be 80 m / min-100 m / min during the cold rolling process, controlling the nozzle distance to be L=26 mm, controlling the distance from the nozzle to the working roll to be within 140 mm, controlling the rotating angle of the spraying beam to be 170 DEG, controlling the spraying speed of the cooling liquid to be 25 m / s, controlling the temperature of the cooling liquid to be 20 DEG C, and regularly replacing the cooling liquid to improve the cooling efficiency of the cooling liquid. In this way, the stainless steel plate strip has good plate shape, and the plate shape change is small.

This invention relates to the field of food processing and production, specifically to a cleaning mechanism for an extruder used in squid paste processing. The mechanism includes an extrusion seat with a rotatable drive shaft on one side and a spiral propulsion plate on the other side. The invention incorporates a barrel cleaning assembly. A first nozzle is arranged at an angle, spraying residual material from the cylindrical portion of the hopper along the bottom of the hopper during descent, effectively preventing leakage. A second nozzle cleans the residual material from the conical portion of the hopper. By incorporating a radial rotation assembly, the invention allows the second nozzle to better adapt to the shape changes of the conical portion of the hopper, ensuring comprehensive cleaning of this area and improving the cleaning coverage and effectiveness.

The application discloses a wide-temperature-range shape memory composite material and a 4D printing preparation method thereof.The 4D printing preparation method comprises key steps of composite material skeleton preparation, hot extrusion forming of the composite material, post-treatment regulation and control of the functional characteristics of the composite material, and the like.The wide-temperature-range shape memory composite material prepared by the application solves the problem of large-scale production of current shape memory composite materials, can realize shape change of the shape memory alloy under multi-temperature regulation, can realize phase change at room temperature and at high temperature of 200 DEG C, and can realize shape memory functions of three shapes.Compared with traditional shape memory alloys, the wide-temperature-range shape memory composite material prepared by the application can realize more postures, thereby meeting specific functional requirements through temperature change, and has wide application prospects in the fields of medical devices, automobile industry, building and civil engineering, aerospace and the like.

According to the finish turning and tapping tool, the two tool noses used in the two adjacent working procedures are arranged on the same blade side by side, the finish turning tool nose is located in front of the tapping tool nose during machining, and the finish turning working procedure and the tapping working procedure are executed together. A height difference exists between the finish turning tool nose and the tapping tool nose, and the height difference between the finish turning tool nose and the tapping tool nose is equal to the depth of a thread. In the prior art, two working procedures need to be completed by two kinds of blades for clamping twice, tool setting twice and machining twice respectively, after the two tool noses are combined together, only one kind of blade needs to be used for clamping once, tool setting once and machining once, that is, the finish turning working procedure and the tapping working procedure are conducted at the same time, and compared with step-by-step completion in the prior art, the machining efficiency is greatly improved. And the production efficiency is greatly improved. And the re-clamping error and the re-tool-setting error are avoided, the error caused by the shape change of the re-selected tool does not exist, and the machining precision is greatly improved.

The invention relates to the technical field of aluminum material deviation rectification, and discloses an adjustable deviation rectification structure convenient for an aluminum material winding device, the adjustable deviation rectification structure comprises a main body, and further comprises an adjusting mechanism, the adjusting mechanism is arranged at the top of the main body, and when deviation rectification is carried out during aluminum plate winding, the movement of the adjusting mechanism enables an aluminum plate not to deform during deviation rectification; and the expansion mechanism is installed on the side face of the adjusting mechanism, and when the aluminum plate is subjected to deviation rectification, movement of the expansion mechanism pushes the aluminum plate to be better reset. When the aluminum plate is rectified, the situation that the middle of the aluminum plate protrudes due to the influence of extrusion force generated when the support barrel makes contact with the side wall of the aluminum plate when the support barrel swings is reduced, and therefore the situation that the aluminum plate cannot be reset due to deformation of the aluminum plate during rectification is reduced, the rectification accuracy is improved, and the rectification efficiency is indirectly improved.

The utility model relates to the technical field of rivets, and discloses a hollow rivet fastener which comprises a rivet head part, the bottom end of the rivet head part is fixedly connected with a rivet rod part, a plurality of tail opening ends are installed at the bottom end of the rivet rod part, an elastic spring is arranged on the surface of the rivet rod part in a sleeved mode, and the tail opening ends are connected with the elastic spring. The top end of the elastic spring is fixedly connected with the bottom end of the rivet head part, a contact plate is installed at the tail end of the elastic spring, a plurality of metal barbs are installed on the surface of the rivet rod part, and the barb direction of the metal barbs is opposite to the insertion direction of the rivet rod part. According to the hollow rivet fastener, through the design of the elastic spring and the contact plate, when a connecting piece connected with a hollow rivet has tiny size or shape change due to the conditions of temperature change, stress deformation and the like, the elastic spring can adapt to the change through stretching and retracting, so that the contact plate always keeps good contact with the connecting piece, and stable connecting force is maintained; and looseness is not easy to generate.

The application discloses an assembly and fitting surface force shape change detection system and a detection method, and belongs to the technical field of aircraft shape detection. The assembly and fitting surface force shape change detection system comprises a base, a measuring instrument hanger, a measuring instrument mounting frame, a thrust mechanism and a micrometer. The base can fix a to-be-detected structure, and the to-be-detected structure comprises a positioning component and an assembly component. The measuring instrument hanger is slidably arranged on the base. The measuring instrument mounting frame is mounted on the measuring instrument hanger. The thrust mechanism is mounted on the measuring instrument mounting frame. The thrust mechanism comprises a pressure sensor. The pressure sensor can exert pressure on the assembly component and measure the exerted pressure value. The micrometer is mounted on the measuring instrument mounting frame. The application can obtain the required pre-tightening force for eliminating the fitting gap and ensure the assembly quality.