Machining device for proportional pressure control valve special for injection machine

Abstract

The invention provides a machining device for a proportional pressure control valve special for an injection machine, and belongs to the technical field of lathe machining. The machining device solves the technical problems that an existing control valve is complex in machining technology, low in production efficiency and poor in accuracy. The machining device for the proportional pressure control valve special for the injection machine comprises a fixed platform, an annular guide rail and a machining unit are arranged on the fixed platform, and a first installing unit and a second installing unit are arranged on the annular guide rail and respectively provided with a plurality of control valves; each control valve is provided with six faces, wherein three adjacent faces form a first set of machining faces, the other three faces form a second set of machining faces, the first installing unit and the second installing unit respectively revolve on the annular guide rail, and the first set of machining faces of the control valves in the first installing unit and the second set of machining faces of the control valves in the second installing unit are respectively machined through the machining unit. The machining device is high in production efficiency, simple in technology and accurate in positioning, and the machined control valves are good in uniformity of overall accuracy.

Description

technical field [0001] The invention belongs to the technical field of lathe processing, and relates to a processing device, in particular to a processing device for a proportional pressure control valve dedicated to an injection machine. Background technique [0002] Proportional pressure control valve is a kind of self-operated regulating valve, which belongs to one of the control valve series. It is used in various machinery with pressure system. Its main function is to adjust the pressure, flow, temperature and other parameters of the medium. The final control element in the road, through the proportional adjustment of the medium pressure, and then realizes the proportional control of the output force or output torque, which can greatly simplify the debugging of the system and stabilize the working state of the pump. It is suitable for air, water , steam, various corrosive media, mud, oil and other media. [0003] There is a commonly used proportional pressure control v...

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Problems solved by technology

[0003] There is a commonly used proportional pressure control valve in injection machines. The shape of this proportional pressure control valve is a cuboid block with six faces, and each face has a number of holes of different sizes. It is characterized by a complex structure. , the processing accuracy is high, so the processing equipment of the proportional pressure control valve must also have high precision requirements. However, at present, the processing technology of the processing equipment of the proportional pressure control valve for injection machines is relatively scattered. A variety of processing equipment is required, such as CNC lathes, vertical machining centers, radial drilling machines, bench drills and other processing equipment. Among them, CNC lathes need to be clamped repeatedly three times, machining centers need to be clamped twice, and bench drills need to use Multiple pairs of drilling jigs, so there are the following problems: 1. Since the six faces of a control valve need to be completed on a variety of processing equipment, and the positioning accuracy of each processing equipment is different, so the processing of each face of the control valve There is a difference in precision, which leads to poor consistency in the overall machining accuracy of the control valve, and the final formed control valve cannot be matched with the machine for practicality; 2. A control valve is processed by multiple processing equipment, the turnover during processing is too frequent, and the processing technology is relatively complicated , the overall processing time of the control valve is lengthened invisibly, the production efficiency is low, and the labor intensity is increased; 3. It needs to be equipped with a variety of processing equipment, so the production cost is high and the energy consumption is large

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