JPH0447924U

JPH0447924U -

Info

Publication number: JPH0447924U
Application number: JP9059790U
Authority: JP
Priority date: 1990-08-29
Filing date: 1990-08-29
Publication date: 1992-04-23

Description

[Brief explanation of the drawing]

第１図ないし第４図は本考案の実施例を示すも
ので、第１図は第１実施例の系統図、第２図は第
２実施例の系統図、第３図は第３実施例の系統図
、第４図は第４実施例の系統図、である。第５図
及び第６図は従来例を示すもので、第５図は第１
従来例の系統図、第６図は第２従来例の系統図、
である。２１……放電加工槽、２２……シール部、２２
ａ……シール隙間、２３……開閉装置、２６……
油圧ユニツト、２７……加工液供給槽、２９……
急注循環ポンプ、３０……急注管路、３１……フ
イルタ管路、３２……加工液注入管路、３３……
切換バルブ、３７……排液管、３８……エジエク
タポンプ、３９……排液管路、４０……分岐管、
４１……第２の切換バルブ。 Figures 1 to 4 show embodiments of the present invention; Figure 1 is a system diagram of the first embodiment, Figure 2 is a system diagram of the second embodiment, and Figure 3 is the system diagram of the third embodiment. FIG. 4 is a system diagram of the fourth embodiment. Figures 5 and 6 show conventional examples, and Figure 5 shows the first example.
A system diagram of the conventional example, Fig. 6 is a system diagram of the second conventional example,
It is. 21... Electric discharge machining tank, 22... Seal part, 22
a...Seal gap, 23...Switching device, 26...
Hydraulic unit, 27... Machining fluid supply tank, 29...
Rapid injection circulation pump, 30... Rapid injection pipe line, 31... Filter pipe line, 32... Machining liquid injection pipe line, 33...
Switching valve, 37... Drain pipe, 38... Ejector pump, 39... Drain pipe line, 40... Branch pipe,
41...Second switching valve.

Claims

[Scope of Claim for Utility Model Registration] (1) An urgent injection circulation pump that sends machining fluid from a machining fluid supply tank to an electric discharge machining tank, a filter pipe that sends the circulating fluid, and an urgent injection pipe that sends the urgent injection fluid. In the electrical discharge machine, the machining fluid injection pipe leading to the electrical discharge machining tank is connected to the filter pipe and is also connected to the quick injection pipe via a switching valve. A drain device for an electrical discharge machine, characterized in that the drain device communicates with a drain pipe through a drain pipe. (2) The draining device for an electric discharge machine according to claim 1, further comprising an opening/closing device for draining liquid from a seal gap of the electric discharge machining tank. (3) A rapid injection circulation pump that sends machining fluid from the machining fluid supply tank to the electrical discharge machining tank, a filter pipe line that sends the circulating fluid, and a sudden injection pipe line that sends the urgent injection fluid, and communicates with the electrical discharge machining tank. In an electric discharge machine in which a machining fluid injection pipe is connected to the filter pipe and also connected to the quick injection pipe via a switching valve, the sudden injection pipe is connected to an exhaust pipe having an ejector pump via the switching valve. A liquid draining device for an electric discharge machine, characterized in that the liquid draining device is connected to a liquid pipe line, and a branch pipe of the machining liquid injection line is connected to a suction side of the ejector pump via a second switching valve. (4) A rapid injection circulation pump that sends machining fluid from the machining fluid supply tank to the electrical discharge machining tank, a filter pipe line that sends the circulating fluid, and a sudden injection pipe line that sends the urgent injection fluid, and communicates with the electrical discharge machining tank. In an electrical discharge machine in which a machining fluid injection pipe is connected to the filter pipe and also connected to the sudden injection pipe via a switching valve, the sudden injection circulation pump is a reversible pump, and the machining fluid injection pipe and the sudden injection pipe are connected to each other via a switching valve. A liquid draining device for an electric discharge machine, characterized in that liquid is drained through an injection pipe.