32results about How to "Guaranteed structural accuracy" patented technology

The invention discloses an assembled type garage structure system based on precast piles and a method. The assembled type garage structure system comprises the precast piles, horizontal supporting beams and independent foundations, wherein vertical load bearing parts of a garage structure are formed by the precast piles, and guide rails are arranged on the outer surfaces of the precast piles; the horizontal supporting beams comprise ground beams and superposed beams, the ground beams are arranged around the precast piles by one circle so as to support a bottom plate of a garage, and the superposed beams are arranged around the precast piles so as to support a garage floor plate or a garage top panel; the independent foundations are connected with the precast piles and the precast ground beams through designed grooves. All the structure members such as the precast piles and the independent foundations are machined in factories and can be assembled for construction, so that emission of pollutants at a construction site is reduced; through the guide rails and cooperation of the independent foundations and mounting flanges, the perpendicularity of the precast piles is guaranteed, the structure bearing capacity is well guaranteed, and structure precision is guaranteed; the precast piles and garage columns are integrated, so that not only is energy saved, but also construction efficiency of the underground garage is greatly improved.

The invention discloses a cable extrusion test run technology. The technology comprises the steps that (1) a mold core and a mold sleeve are selected according to the cable extrusion thickness, a wedge-shaped ruler is inserted into the gap between the mold core and the mold sleeve for measurement after the mold core and the mold sleeve are installed, and meanwhile the coaxiality of the mold core and the mold sleeve are precisely adjusted; (2) technology traction and extension are achieved for the cable extrusion technology, concretely, optimal technological parameters are set for the cable type, cable materials and indoor temperature, in other words, glue output amount, the traction speed and indoor temperature are set as fixed values, the plastifying temperature which is a variable is adjusted, five kinds of finished products plastified at different temperatures are manufactured in a trial mode, insulation voltage, tensile strength, elongation at break and hot extending tests are carried out, test results are compared, the plastifying temperature value with the best electric performance and mechanical performance is taken as the optical parameter value for the processing technology of the cable type, and the standard technological process is formed. According to the cable extrusion test run technology, a mold is precisely adjusted before cable extrusion, the structural precision is ensured, using is easy and convenient, the maneuverability is high, and the rate of rejected products produced in the cable manufacturing process can be effectively lowered.

The invention provides a splicing and lifting type sea-area cultivation net cage. The splicing and lifting type sea-area cultivation net cage is characterized in that the whole outer frame of the cultivation net cage is of a cone frustum shape, and the bottom surface diameter of the outer frame of the cultivation net cage is larger than the top surface diameter of the outer frame of the cultivation net cage; the outer frame of the cultivation net cage is assembled by a plurality of trapezoid frames with narrow upper portions and wide lower portions, a net rack is mounted on the bottom surface of the cultivation net cage, adjacent trapezoid frames are mounted together through flanges and connectors, a float is arranged at the bottom of each trapezoid frame, each float is provided with an air inlet pipe and a draining outlet, and the floats are used for controlling the floating of the cultivation net cage; fish shelter anchors are hung to the cultivation net cage through anchor cables, and the middles of the anchor cables are connected with floater components suspended above through inhaul cables. Compared with a traditional deep-sea rigid net cage, the splicing and lifting type sea-area cultivation net cage has the advantages that the cone-frustum-shaped splicing structure of the net cage adopts a cone-frustum-shaped multi-edge structure, net cage strength is enhanced while modularized, standardized and miniaturized batch factory production is achieved, manufacturing precision is guaranteed, transportation is facilitated, and on-site assembling and net cage putting are achieved.

The invention relates to the technical field of vacuum self-consuming furnaces, in particular to a vacuum self-consuming furnace crystallizer welded cylinder producing process and a welding assistive device, and solves the problems that currently a cylinder is formed by spinning or forging, the process is complicated, production cost is high and price is high. The crystallizer cylinder is formed in a welded manner by the aid of the welding assistive device, the technical prejudice that the cylinder can only be formed by spinning or forging in the prior art is overcome, indicators of the produced cylinder meet the requirements of the vacuum self-consuming furnace during smelting, on the basis of guaranteeing structural strength and accuracy of a crystallizer, producing difficulty is reduced effectively, production cost of the crystallizer is reduced, and market competitiveness of equipment is improved.

The invention relates to an electrical test device for simulating winding of a large turbo-generator stator. The test device is capable of efficiently bearing the simulating winding of the large turbo-generator stator, the accurate size, stable structure and appropriate angle are guaranteed and the safety operation of stator simulating winding high voltage electrical test is ensured. The test device is provided with a slot part fixing device and an end part fixing device of turbo-generator stator simulating winding, the specific structure and relationship between the fixing devices is determined for the first time. The test device is practical in structure, efficient in method, easy to design, process and mold, the device relates to the effective establishment of turbo-generator stator simulating winding electrical test integrated unit, which lays a good foundation for further research on the electrical performance of winding.

The invention discloses a support lattice shell of a concrete spherical shell structure and a construction method. The support lattice shell of the concrete spherical shell structure comprises radial steel tubes, annular steel tubes, annular components of expansion bolts, annular components of built-in fittings, the expansion bolts, the built-in fittings, a concrete wall body, frameworks, spherical shell concrete beams, concrete shells, a support lattice shell, fragment lattice shells, through holes and fixing plates of the built-in fittings. In the construction process of the construction method, firstly the radical steel tubes and the annular steel tubes are mounted one segment by another, and are fixed to a concrete wall body structure through the annular components, and finally the frameworks are laid to form a support lattice shell of the spherical shell structure. By adoption of the construction method, the structure accuracy can be guaranteed, supporting and arranging difficulties of the frameworks can be reduced, and the construction efficiency and the construction quality can be improved. In addition, the support lattice shell of the spherical shell structure is a steel structure, can be recycled, not only can decrease wood consumption, but also is environmentally friendly; and the problems that the molding accuracy of the concrete wall body structure is low and the support system of the concrete wall body structure is difficult are solved, and the problem of framework construction of the concrete wall body structure is solved.

The invention discloses bending equipment for an automobile seal strip. The bending equipment comprises a base plate, a reference block and a first pressing block, and the reference block and the first pressing block are arranged on the base plate oppositely. The face, opposite to the first pressing block, of the reference block is a standard curved face. An elastic piece is arranged between the reference block and the pressing block. One end of the elastic piece is fixed to the base plate, and the other end of the elastic piece is connected with a power device. The seal strip is clamped to the elastic piece in the length direction of the elastic piece. The power device drives the elastic piece to be bent and to be completely attached to the standard curved face of the reference block. A second pressing block is further arranged on the reference block. The first pressing block and the second pressing block are connected with the power device. The power device drives the first pressingblock to move and press on the elastic piece attached to the standard curved face, and the power device drives the second pressing block to vertically downwards press and act on the elastic piece andthe standard curved face. Press-bending of the automobile seal strip is achieved through a simple mechanical structure, and the product obtained through bending is high in precision.

The invention discloses an auxiliary device used for controlling tongue-and-groove size manufacturing precision. The auxiliary device comprises a magnetic angle iron (1), a calibrated scale (2), and an iron sheet (3). The magnetic angle iron (1) comprises a groove plate (4) and a scale plate (5), and the side edge of the scale plate (5) is provided with scales. The calibrated scale (2) is provided with a strong ferromagnetic device (6). The calibrated scale (2) is provided with the scales used to correspondingly extend the scales of the scale plate (5), and the calibrated scale is an elastic telescopic member. One surface of the calibrated scale (2) is provided with the iron sheet (3), which is a fixable movable member, and is disposed on the side of the magnetic angle iron (1) opposite to a bending direction, and is fixedly disposed on the calibrated scale (2) by a locking device (7). The invention also discloses a method used for controlling the tongue-and-groove size manufacturing precision. The auxiliary device and the method have advantages of simple structure, convenient use, and high measurement precision.

The invention relates to the technical field of vacuum self-consuming furnaces, in particular to a vacuum self-consuming furnace crystallizer welded cylinder producing process and a welding assistive device, and solves the problems that currently a cylinder is formed by spinning or forging, the process is complicated, production cost is high and price is high. The crystallizer cylinder is formed in a welded manner by the aid of the welding assistive device, the technical prejudice that the cylinder can only be formed by spinning or forging in the prior art is overcome, indicators of the produced cylinder meet the requirements of the vacuum self-consuming furnace during smelting, on the basis of guaranteeing structural strength and accuracy of a crystallizer, producing difficulty is reduced effectively, production cost of the crystallizer is reduced, and market competitiveness of equipment is improved.

The invention belongs to the technical field of stamping processing, and relates to a continuous forming method for thin terminals. The steps include: ①punching positioning holes, ②end pre-cutting, ③end chamfering, ④end finishing, ⑤edge trimming, ⑥blanking; step② Based on the positioning hole, multiple pre-cut holes are cut in the product forming area. The pre-cut holes include side pre-cut holes near the side of the metal strip. The outline of the side pre-cut holes includes several side-by-side raised structures , the raised height of the raised structure does not exceed 2mm, and the raised structure is chamfered and refined before trimming. This method can preform the chamfered part at both ends of the terminal with a thinner size, and then punch the rest of the terminal contour. The process is continuous and ensures the structural accuracy of the terminal chamfer, which meets the customer's precision. Require.

The invention discloses an assembling and welding tool for ceramic windows and an application method for the assembling and welding tool. The assembling and welding tool comprises a main tool mold, an inner cavity support structure and barriers. The periphery of a body of a ceramic window is fixed by the aid of the main tool mold, the upper end and the lower end of the body of the ceramic window are fixed by the aid of the inner cavity support structure, and a cooling water connector is fixed by the aid of the barriers. The application method includes steps of combining components of the main tool mold for assembling parts of the ceramic window with one another; assembling the inner cavity support structure and the barriers; integrally welding the ceramic window at one step; and disassembling the main tool mold, the inner cavity structure and the barriers to obtain a finished product. The assembling and welding tool and the application method have the advantages that three tool units with high concentricity and parallelism form the main tool mold to constrain the body of the ceramic window; the size of a waveguide inner cavity is fixed by the aid of the inner cavity support structure capable of moving in front, rear, left and right directions, and the waveguide inner cavity with the fixed size is prevented from deforming during welding; the cooling water connector is positioned by the barriers, and screws on the barriers are adjusted to be abutted to the water connector, so that the water connector cannot move; and owing to the method, all the parts are assembled at one step and are welded and molded at one step, so that the design precision of the ceramic window is effectively guaranteed, the production efficiency is greatly improved, and the ceramic window manufacturing cost is reduced.

The invention discloses an assembled type garage structure system based on precast piles and a method. The assembled type garage structure system comprises the precast piles, horizontal supporting beams and independent foundations, wherein vertical load bearing parts of a garage structure are formed by the precast piles, and guide rails are arranged on the outer surfaces of the precast piles; the horizontal supporting beams comprise ground beams and superposed beams, the ground beams are arranged around the precast piles by one circle so as to support a bottom plate of a garage, and the superposed beams are arranged around the precast piles so as to support a garage floor plate or a garage top panel; the independent foundations are connected with the precast piles and the precast ground beams through designed grooves. All the structure members such as the precast piles and the independent foundations are machined in factories and can be assembled for construction, so that emission of pollutants at a construction site is reduced; through the guide rails and cooperation of the independent foundations and mounting flanges, the perpendicularity of the precast piles is guaranteed, the structure bearing capacity is well guaranteed, and structure precision is guaranteed; the precast piles and garage columns are integrated, so that not only is energy saved, but also construction efficiency of the underground garage is greatly improved.

The invention provides an electronic expansion valve. The electronic expansion valve includes a valve seat, a valve port seat, a nut assembly and a valve needle. The valve port seat is fixedly arranged on the valve seat, and a guide sleeve is arranged between the valve seat and the nut assembly. Set in the guide sleeve, the valve port seat and the guide sleeve are concentrically socketed, and the end of the valve port seat close to the guide sleeve is radially provided with a first flow channel that connects the valve cavity of the valve seat with the valve port of the valve port seat, and the valve port seat and the guide sleeve The matching length is greater than the height from the bottom of the first flow channel of the valve port seat to the bottom axial stop surface outside the valve port seat corresponding to the guide sleeve. According to the electronic expansion valve of the present invention, it can solve the problems in the prior art that the axial positioning of the valve seat to the guide sleeve is insufficient, the deflection of the guide sleeve is prone to occur, and the structural accuracy of the electronic expansion valve is affected.

The invention discloses a support lattice shell of a concrete spherical shell structure and a construction method. The support lattice shell of the concrete spherical shell structure comprises radial steel tubes, annular steel tubes, annular components of expansion bolts, annular components of built-in fittings, the expansion bolts, the built-in fittings, a concrete wall body, frameworks, spherical shell concrete beams, concrete shells, a support lattice shell, fragment lattice shells, through holes and fixing plates of the built-in fittings. In the construction process of the construction method, firstly the radical steel tubes and the annular steel tubes are mounted one segment by another, and are fixed to a concrete wall body structure through the annular components, and finally the frameworks are laid to form a support lattice shell of the spherical shell structure. By adoption of the construction method, the structure accuracy can be guaranteed, supporting and arranging difficulties of the frameworks can be reduced, and the construction efficiency and the construction quality can be improved. In addition, the support lattice shell of the spherical shell structure is a steel structure, can be recycled, not only can decrease wood consumption, but also is environmentally friendly; and the problems that the molding accuracy of the concrete wall body structure is low and the support system of the concrete wall body structure is difficult are solved, and the problem of framework construction of the concrete wall body structure is solved.

The invention discloses a resin-based composite material battery box laying mold for new energy vehicles. The mold includes an inner mold, an outer mold and a fastening device. The inner mold includes an inner flanging edge, an inner panel-front, an inner panel-middle, an inner panel-back, a center panel of the inner bottom surface and four corners of the inner bottom surface. The outer mold includes outer plate-front, outer plate-middle, outer plate-rear and outer bottom surface. The fastening device includes a side plate fastening device and an upper and lower fastening device, which are composed of bolts, nuts, side panels and upper and lower panels. The internal and external combination mold designed by the invention can fully guarantee the geometric accuracy and structural accuracy of the battery box; the detachable mold designed by the invention well overcomes the difficult problem of complex demoulding of resin-based composite materials; the openable mold designed by the invention The outer mold overcomes the influence of the concave-convex plane formed by the reinforcement structure of the battery box on the installation of the outer mold.

The invention provides a magnetron cathode assembly assembly process, including the following steps: S1: pre-assembly between pre-assembled parts and molds; S2: welding, demoulding; S3: leak detection; S4: installation of filaments, upper ends cap, and weld and fix the filament and upper end cap; S5: filament carbonization; S6: resistance detection, titanium powder coating; wherein, the pre-installed parts include lower end cap, long lead wire, reflector, K side tube, solder plate, support Body, terminal assembly; the mold includes an upper mold and a lower mold. The upper mold and the lower mold are set so that the cathode assembly will not be deformed during welding, thereby ensuring the structural accuracy of the cathode assembly, and then through the setting of the upper and lower fixtures of the leak detector, the cathode assembly can be inspected When leaking, it has higher sensitivity and detection accuracy. The cathode assembly assembly process formed by the above mold is used to ensure the assembly accuracy of the magnetron cathode assembly and improve the product qualification rate.