19results about How to "Avoid secondary deformation" patented technology

The invention belongs to the technical field of non-ferrous metal profile forming, and relates to a shaping method and device for titanium and titanium alloy arc-shaped profiles. According to the shaping method, the problems of large curvature radius change, profile distortion, poor flatness and the like caused by rebound of the bent titanium and titanium alloy arc-shaped profiles are solved through hot shaping treatment, and the annealing device is used for annealing treatment to solve the problem of secondary deformation of the arc-shaped profiles in the annealing process of eliminating residual stress. Before the shape correcting machine is used for correcting the shape, the arc-shaped profiled bar is firstly placed in a space and is heated to a preset temperature on line, so that the problems of high resistance, poor plasticity, high resilience and difficulty in deformation of the profiled bar in a normal temperature state are solved, and meanwhile, various problems caused by secondary transfer of a hot material after offline heating and clamping and re-positioning of the arc-shaped profiled bar are also solved. According to the annealing device, the arc-shaped profiled bar, the bottom plate and the fixing block assembly form a coating whole, so that the possibility of secondary deformation of the arc-shaped profiled bar in the annealing process of eliminating residual stress is effectively avoided.

The invention belongs to the technical field of municipal pipeline repair, and discloses a non-excavation type repair device and method for a flexible pipeline, the repair device comprises an inflation pipe, one end of the inflation pipe is plugged, and the other end of the inflation pipe is connected with a high-pressure air pump; the inflation tube penetrates through the air bag, and a ventilation hole is formed in the section in the air bag. Two ends of the air bag are fixedly connected with the inflation tube to form sealing; the air bag is sleeved with a supporting net, the supporting net is of a pipe body structure defined by net faces, and the net faces of the supporting net take rhombic grids as units; the repairing method comprises the steps that the repairing device is conveyed to a to-be-repaired site in the flexible pipeline; then high-pressure gas is inflated into the air bag through a high-pressure gas pump, the air bag expands to enable the supporting net to be unfolded, and the sunken flexible pipeline is repaired till the supporting net is fully attached to the pipe wall of the flexible pipeline; finally, the air bag is contracted through deflation, and the air bag is pulled out along with the inflation tube; the supporting net is reserved in the flexible pipeline and used for preventing secondary deformation of the flexible pipeline.

The utility model provides a wave generator assembly tool of a harmonic reducer. The wave generator assembly tool comprises a press-fitting base and a guide shaft arranged on the press-fitting base. The guide shaft comprises a first guide part and a second guide part, the first guide part is used for being connected with the cam, and the cam can slide in the axial direction of the first guide part; the second guide part is sleeved with a guide sleeve, and the guide sleeve can slide in the axial direction of the second guide part. A positioning part protruding in the radial direction is arranged on the peripheral wall of the guide sleeve, and the first guide part, the second guide part and the positioning part are coaxially arranged; the positioning part is used for being connected with the flexible bearing in a sleeving mode, and the peripheral wall of the positioning part is attached to the inner wall of the flexible bearing. In the assembling process, the cam pushes the guide sleeve downwards, the positioning part is made to retreat from the inner ring of the flexible bearing, meanwhile, the cam is extruded into the flexible bearing from the upper portion, in the process, the cam and the flexible bearing are kept coaxial all the time, the assembling requirement of the wave generator is met, secondary deformation of the flexible bearing is avoided, and then the product quality is guaranteed.

This invention relates to the field of printing machinery manufacturing technology and discloses a printing roller rounding machine with machine vision flaw detection. The machine includes a base with a groove on its top. A movable seat is slidably connected to the inner side of the groove. A flaw detection mechanism is located on the top right side of the movable seat. The flaw detection mechanism includes a bracket, which is fixedly connected to the rear end of the top right side of the movable seat. A hydraulic rod is fixedly connected to the inner side of the bracket, and a connecting rod is rotatably connected to the top of the hydraulic rod. An arc-shaped plate is rotatably connected to the front side of the bracket. This invention uses a motor to drive a lead screw to rotate, which in turn moves the movable seat, enabling the flaw detection mechanism and the rounding mechanism to move freely along the printing roller axis. It can perform full-coverage scanning of printing rollers of different lengths and specifications, and uses a polarizing filter in conjunction with a lamp inside a hollow plate to supplement lighting, eliminating specular high-gloss reflections on the surface of the metal printing roller.

The utility model relates to the related technical field of door plate assemblies, in particular to an anti-deformation door plate assembly which comprises a wood plate, a heat insulation plate is fixedly connected to the surface of one side of the wood plate, a correcting mechanism is arranged on the outer side of the wood plate, and a mounting mechanism is arranged on the surface of the outer side of the wood plate. According to the anti-deformation door plate assembly, through the arrangement of the vertical correction plate, the transverse correction plate, the insertion grooves, the clamping blocks, the embedding plates, the outer frame and the heat insulation plate, when correction needs to be conducted, the vertical correction plate and the transverse correction plate are inserted into the insertion grooves correspondingly, then the clamping blocks are pulled out and rotated outwards, and then the embedding plates and wood plates are embedded; at the moment, the embedded plate is embedded and fixed through the clamping block, finally, the outer frame and the embedded plate are embedded and fixed, in this way, the situation that the correction plate leaks out to affect the attractiveness is avoided, meanwhile, the outer frame reinforces the device and prevents secondary deformation, and the wood plate achieves a certain heat insulation effect through installation of the heat insulation plate.

The application discloses a half-ring magnetic core with an inclined angle and a sintering process thereof. The magnetic core in a green body state comprises a half-ring magnetic core body, a connecting bridge at an opening and an interface region between the two; the connecting bridge region is filled with a mixture of Mg powder and SiO2 powder and added with B2O3 sintering aids, and the interface region is filled with a bismuthate low-melting point glass powder with a melting point of 550-650 DEG C. During preparation, sectional atmosphere sintering is adopted, the connecting bridge is densified in advance through silicon thermal reaction to inhibit sintering deformation, meanwhile, the interface glass is used to isolate and reduce thermal stress to weaken the connecting bridge, and the connecting bridge can be removed at one time in an end face grinding process; the application solves the problems of large sintering deformation of the half-ring magnetic core, difficulty in removing the connecting bridge and high high-frequency loss, significantly improves the end face precision, high-frequency performance and splicing consistency of the magnetic core, and is suitable for industrialized production in the fields of 5G communication, new energy vehicles and the like.

This invention relates to the field of semiconductor product testing technology and discloses a high and low temperature testing and conveying device for semiconductor products. The device includes a carrier on which a tray is placed. Several sets of lower pressure plates and upper pressure components are respectively installed on the carrier. The lower pressure plates and upper pressure components are drively connected and move in opposite directions. One set of lower pressure plates has a positive trapezoidal plate, and an inverted trapezoidal plate is also provided inside the testing chamber. The inverted trapezoidal plate cooperates with the positive trapezoidal plate to move the lower pressure plates downwards. By setting relatively movable lower pressure plates and pressure cylinders, the cooperation of the inverted and positive trapezoidal plates during carrier movement drives the automatic clamping of the tray. This forcibly corrects the unevenness of the tray top caused by long-term wear, ensuring that the tray top always remains level. This guarantees that the suction cup can accurately pick up semiconductor products from all positions within a fixed stroke, effectively avoiding missed tests due to partial tray sagging, and significantly improving the integrity and reliability of the test.

A kind of self-adapting heat treatment device and heat treatment method for front machine case forgings, including the design method of heat treatment device and forging heat treatment method.The device design method includes: according to the minimum inner circle diameter of forging and profile design multiple swing material blocks of discrete distribution;At the corresponding position of the installation edge of forging, set up trapezoidal plate-shaped bracket with profile and spring;At both ends of intermediate swing material block, set up guide block, and set up positioning mechanism with I-shaped slide rail at the larger radius end, slide rail is provided with 15 ° slope along diameter direction;According to the effective heating zone of heat treatment furnace, design grid openwork base.The heat treatment method includes: the device is preheated to 150 ℃-200 ℃ and is daubed with paint;After the device is heated to solid solution temperature and is kept warm, put into forging;The holding time of forging is calculated according to maximum wall thickness × 0.5;Remove and cool down.The present application can effectively improve the deformation of forging high-temperature solid solution heat treatment and shorten the holding time, reduce manufacturing cost.

The invention discloses a farm flattening machine with a flapping function. A farm flattening machine with a flapping function comprises a first distributing machine, a second conveyor is arranged in front of the first distributing machine, a rack table is arranged in the first distributing machine, a driving motor is installed on the side wall of the rack table, a flapping device is installed on the rack table, a distributing device is arranged at the position parallel to the flapping device, and an arch frame is fixed to the rack table. A partition plate is mounted in the center of the rack table; an even number of tree-shaped supporting frames are arranged in the beating device, an even number of reinforcing columns are fixed to the inner sides of the tree-shaped supporting frames, and beater bodies are fixed to the inner surfaces of the tree-shaped supporting frames. And a fixed table is arranged in the distribution device. Bagged broiler chicken products are conveyed on the first distributing machine, when passing through the flapping device in the displacement process, the broiler chicken products can be flapped by the flapping plate in the flapping device for 2-3 times, and the internal bagging gaps of the products are filled with the help of the flapping force; and then entering a second conveyor of the quick-freezing line to finish shaping, so that space is saved during subsequent transportation and boxing.

The application discloses a large-scale shaft part nondestructive pressurizing straightening system and method, and belongs to the technical field of machining. The system comprises a shaft supporting and rotating device, a split heating device and a pressure mechanism, a pair of split coolers is symmetrically arranged on the two sides of the heating device, a chilling zone is formed by spraying low-temperature fluid to the surface of the shaft, the heating area is accurately controlled within a certain range, and secondary deformation caused by heat diffusion is avoided; the pressure mechanism adopts a self-adaptive flexible contact type pressure device, the pressure device integrates a multi-point hydraulic structure and a chain type linkage pressure head, pressure automatic balance is realized by using a hydraulic accumulator, point / line pressure is dispersed into large-area surface pressure, the pressure device can be self-adaptive to shafts with different diameters and realize nondestructive pressurizing. Through accurate heat and force cooperative control, the technical problem that a traditional straightening method has a large heat affected zone and is easy to damage the surface of the shaft is solved, and the precision, success rate and safety of large-scale shaft part straightening are significantly improved.

The invention relates to the technical field of leather production, in particular to a leather production system and method.The leather production system comprises a rack, a feeding and drying mechanism, a cooling mechanism, a softening mechanism, a pressing mechanism, a transferring mechanism and a pricking mechanism, and the feeding and drying mechanism comprises a drying box, a feeding and conveying assembly, a drying and conveying assembly, a constant-temperature conveying assembly and a drying and blowing assembly; the drying box is arranged on the rack, the cooling mechanism comprises a cooling conveying assembly and a discharging conveying assembly, a feeding port and a discharging port are formed in the two sides of the drying box respectively, one end of the feeding conveying assembly extends to the outside of the feeding port, and the other end of the discharging conveying assembly extends to the outside of the discharging port. One end of the discharging conveying assembly extends to the outer portion of the discharging opening and is close to the softening mechanism. Through the efficient, accurate and innovative process characteristics, the leather processing quality and efficiency are remarkably improved.

This invention discloses a car hood sheet metal repair device, belonging to the field of sheet metal repair technology. Key technical features include: a worktable for fixing car sheet metal parts; a scanner for scanning the car sheet metal parts and determining the repair area; a robotic arm mounted on one side of the worktable for generating a grinding path based on the scanner data; a grinding device mounted at the working end of the robotic arm, including a grinding motor and a grinding head, the grinding motor driving the grinding head; a negative pressure suction device for generating a constant negative pressure airflow; and a dust suction device sleeved on the outside of the grinding head for negative pressure dust suction. The dust suction device includes a first constraint sleeve and a second constraint sleeve, with a gap between the two. This invention significantly improves repair accuracy and efficiency, reduces manual maintenance costs, and meets environmental protection requirements.

The application discloses a kind of automobile aluminum alloy stamping method and device, belong to metal stamping forming technical field.For the problems of wrinkling, cracking, uneven springback and high interface edge tearing rate when stamping complex parts such as aluminum alloy battery pack tray in prior art, the method provided by the application comprises: blanking and surface pretreatment of blank; Zoning coating differential lubricating medium; Using zoning variable blank holder force and progressive constraint forming drawing process, the blank holder force of each sub-zone changes with stroke gradient, and the gap between the convex and concave dies in the stiffener dense area is locally increased; Using stress release type step trimming, the process connection band is retained and cut off after local shaping; Local shaping combined with pre-compensation database for dynamic reverse compensation; Size detection data is used for iterative updating of process model.The device includes a convex die assembly and a flexible transition forming block driven independently in zones.The application can significantly inhibit cracking, reduce springback difference and improve part size consistency.

The utility model discloses an air bag assembly in a vulcanizing machine for tire repair and belongs to the technical field of tire repair. A soft air bag is arranged on the outer side face of the frame body, high-temperature cloth is arranged outside the soft air bag, a first threaded hole is formed in the end of the frame body, a second threaded hole is formed in the pressing plate, the second threaded hole corresponds to the first threaded hole, and screws are screwed into the second threaded hole and the first threaded hole. The soft air bag is fixed with the frame body through a mounting mechanism. Side baffles are fixed to the two sides of the outer side face of the frame body. Each side baffle located at the corner of the L-shaped structure frame body is provided with an arc-shaped extension, and the two ends of each side baffle are fixed through connecting plates. Reinforcing ribs are fixed to the inner side face of the frame body. The soft air bag disclosed by the utility model can better adapt to the shape of the tire and the repair requirement in the vulcanization process, and provides necessary support for the tire through uniformly distributed pressure, so that secondary deformation of the tire in the repair process is avoided, the repaired tire is ensured to have no recess or bulge, the repair surface is smooth, and the repair quality is improved. And the repairing quality and the durability of the tire are obviously improved.

The utility model provides a film laminating device for woven bag production, which comprises a group of vertical plates, a group of sleeve rollers mounted on one side of the group of vertical plates, a heating roller mounted between the group of vertical plates, a supporting roller mounted between the group of vertical plates and positioned below the heating roller, and a guide roller mounted between the group of vertical plates and flush with the bottom end of the heating roller, the guiding device is used for guiding plastic films; and the flattening assembly comprises two groups of U-shaped frames arranged between the group of vertical plates and a group of flattening rollers rotationally connected to the inner walls of each group of U-shaped frames. Through the arranged flattening assembly, when a plastic film is wrinkled in the conveying process, a flattening roller can pull the two side edges of the plastic film to extend outwards so that the plastic film can be fully unfolded, and the plastic film can be in a flattened state when passing through a gap between a heating roller and a supporting roller; therefore, the phenomena of bubbles, hollowing and the like when the plastic film is softened and attached to the woven bag are avoided, and the flatness of the film is further improved.

The utility model provides a straightening device of welded square tube, including support subassembly, feed assembly, square tube straightening subassembly and collection square tube subassembly, support subassembly includes two first support plate and second support plate, two first support plate sets up mutually parallel, and the both ends of second support plate are fixedly connected to the one end of a first support plate respectively and form U type support structure after, the U type support structure is along material direction of travel and is provided with feed assembly, pipe face flat device and square tube straightening subassembly respectively, and collection square tube subassembly is hinged in one end of support subassembly, and is located square tube straightening subassembly's one side, the straightening device of welded square tube can straighten square tube continuously under the condition of room temperature, can also adapt to different size's welded square tube, can realize to the straightening of different welded square tube of specification under the condition of not changing equipment.

The invention discloses a shaping method for a semiconductor metal rolling target material, which is characterized in that for rolling target materials of different materials, corresponding shaping methods are selected for shaping processing according to the bending strength of the materials; according to the method, the ideal planeness is achieved by providing a multi-time shaping method for the rolled target blank, and the internal stress is released by adding intermediate annealing and other methods during multi-time shaping for a material with relatively high bending strength, so that the plasticity of the target material is improved, the shaping quality is ensured, the needed planeness is achieved, and secondary deformation is prevented; and cracking caused by overlarge deformation of one-time shaping is prevented.

This invention relates to the field of oil and gas drilling equipment manufacturing, and discloses a pneumatic expansion packer for oil and gas wells. The packer includes an upper connector, one end of which is fixedly connected to an exhaust / unsealing valve. A central tube is fixedly connected to the end of the exhaust / unsealing valve away from the upper connector. An expansion cylinder is slidably connected to the inner wall of the central tube. A sealing cylinder is fixedly connected to the end of the expansion cylinder away from the central tube. An installation mechanism includes a mounting pad, which is fixedly connected to the inner wall of the expansion cylinder. A connecting frame is fixedly connected to the top of the mounting pad. By setting up this installation mechanism, when the expansion cylinder is subjected to impact force from tubing vibration, the impact force is transmitted through a friction wheel to a silicone compression cylinder. The compression cylinder initially buffers the vibration through its own elastic expansion and contraction. Then, a buffer rod transmits the remaining pressure to a rubber bladder inside the buffer box. The rubber bladder completely absorbs the vibration pressure, achieving a two-stage flexible buffering of the vibration impact force, thus completely avoiding plastic deformation of the expansion cylinder caused by vibration.