7results about How to "Reduced dimensional accuracy" patented technology

The utility model relates to the technical field of vehicle-mounted electric control cover plate die-casting, and discloses a new energy vehicle-mounted electric control cover plate die-casting device which comprises a die-casting device body, a baffle is fixedly connected to the left side of the top of the die-casting device body, a die-casting mechanism is arranged at the top of the die-casting device body, and a base is fixedly connected to the bottom of the die-casting device body. A collecting mechanism is arranged at the bottom of the die-casting device body, the die-casting mechanism comprises a die-casting assembly and a stirring assembly, the die-casting assembly is arranged at the top of the die-casting device body, and during use, through the arranged die-casting mechanism, when a vehicle-mounted electric control cover plate needs to be subjected to die-casting work, a first servo motor drives a first threaded rod to rotate; the hydraulic cylinder pushes the push plate, raw materials in the conveying pipe stably and accurately enter the first die, the right side of the second die makes close contact with the left side of the first die, and the sealing performance of the dies in the die casting process is guaranteed.

The application discloses a kind of progressive forming device, process and process design method of engine boss component, belong to aerospace equipment technical field, the progressive forming process of engine boss component includes the following steps: S1.to high-temperature alloy material is preheated;S2.high-temperature alloy strip after preheating is handled by progressive die, and the boss component is prepared.The process method disclosed in the application effectively solves the problems existing in the traditional processing method by the continuity of production and high-speed production rhythm of progressive die, combined with material heating temperature control system.The process method has the advantages of improving production efficiency, reducing cost, improving product precision and consistency, and reducing deformation risk, etc., and can realize high-quality, high-efficiency boss product production.

The invention discloses a processing method for improving picosecond cutting board warping of an FPCOIL product, which comprises the following steps that a circuit board containing the product and a laser carrier capable of containing the circuit board are provided, and the laser carrier comprises a lower jig and an upper jig; the lower jig is placed on a working table; the circuit board is placed in the lower jig, and then the upper jig is placed at the upper end of the lower jig; the working table board adsorbs a circuit board through a lower jig, and a plurality of exhaust holes are formed in the lower jig; and cutting the circuit board by using a picosecond laser. The structure that the lower jig and the upper jig are fixed in a magnetic attraction mode is adopted for improving warping of a product board, the lower jig is placed on the working table, the whole circuit board is placed in the lower jig, a plurality of exhaust holes distributed in the periphery of the product are formed in the lower jig, effective attraction of the working table to the circuit board is facilitated, and the follow-up laser cutting precision is improved; and the upper jig is pressed on the edge area of the circuit board, so that the warping of the product can be improved.

The invention discloses an oil cooler space ring and a high-precision manufacturing method thereof.The oil cooler space ring comprises an annular body, an oil through hole is formed in the center of the annular body, four positioning bosses are evenly distributed at one end of the annular body in the circumferential direction, and a first sealing groove is formed in the peripheral face of the annular body; a second sealing groove is formed in the inner circumferential face of the annular body, a thread auxiliary groove is formed in the oil through hole, a flow guide groove is formed in the end, away from the positioning boss, of the annular body and distributed in a spiral shape, the positioning boss is used for axial positioning and circumferential positioning of the space ring in the oil cooler, and the assembly precision is guaranteed. The flow guide grooves are formed in the end face of the annular body and distributed in a spiral shape, the number of the flow guide grooves is six, the spiral flow guide grooves can guide a cooling medium to form ordered spiral flow on the surface of the space ring, the contact area of the cooling medium and the space ring is increased, the contact time of the cooling medium and the space ring is prolonged, and therefore the heat exchange efficiency is improved.

The application provides a straight slot processing method based on double-C-axis cooperative motion of a lathe, and solves the problems of multiple clamping, low precision and dependence on special milling equipment in straight slot processing of large rotary components. A side milling head device is installed on a numerical control vertical lathe, a workpiece chuck rotation shaft is used as a first rotation shaft C1, and a milling head swing shaft is used as a second rotation shaft C2; a coordinate transformation relationship between a machine tool coordinate system and a workpiece coordinate system is established, a cooperative motion law of the C1 shaft and the C2 shaft is determined, a tool tip forms a linear motion track in a workpiece reference coordinate system; combined with rough processing layering and track planning of multiple finishing modifications, a numerical control program containing C1, C2 and feeding shaft linkage control is generated after post-processing. The application can complete high-precision processing of the straight slot in the large rotary component on the same equipment, reduces workpiece transfer and repeated clamping, reduces equipment cost, and is suitable for processing of the key groove or positioning groove of a magnetic yoke section of a pumped storage unit.

The utility model discloses a kind of co-cured composite material transmission shaft forming tool, including upper die, lower die and two cover plates;The upper die, lower die and two cover plates are closed to form the forming cavity of composite material transmission shaft;Two ends of the forming cavity have metal joint cavity.The utility model forms accurate composite material transmission shaft forming cavity by the close cooperation of upper die, lower die and two cover plates, ensure the effective control of size accuracy and shape accuracy during forming process, improve the overall quality of product, in addition, the metal joint cavity designed at the two ends of forming cavity, so that metal joint and composite material can be co-cured in the same process, strengthen the bonding strength between metal joint and composite material, improve the overall performance and reliability of transmission shaft.