330850-50-05

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330850-50-05

330850-50-05

 

 組合機(jī)床的控制

兩工位鉆孔、攻絲組合機(jī)床，能自動(dòng)完成工件的鉆孔和攻絲加工，自動(dòng)化程度高，生產(chǎn)效率高。兩工位鉆孔、攻絲組合機(jī)床如圖7-32所

機(jī)床主要由床身、移動(dòng)工作臺(tái)、夾具、鉆孔滑臺(tái)、鉆孔動(dòng)力頭、攻絲滑臺(tái)、攻絲動(dòng)力頭、滑臺(tái)移動(dòng)控制凸輪和液壓系統(tǒng)等組成。

移動(dòng)工作臺(tái)和夾具用以完成工件的移動(dòng)和夾緊，實(shí)現(xiàn)自動(dòng)加工。鉆孔滑臺(tái)和鉆孔動(dòng)力頭，用以實(shí)現(xiàn)鉆孔加工量的調(diào)整和鉆孔加工。攻絲滑臺(tái)和攻絲動(dòng)力頭，用以實(shí)現(xiàn)攻絲加工量的調(diào)整和攻絲加工。工作臺(tái)的移動(dòng)（左移、右移），夾具的夾緊、放松，鉆孔滑臺(tái)和攻絲滑臺(tái)的移動(dòng)（前移、后移），均由液壓系統(tǒng)控制。其中兩個(gè)滑臺(tái)移動(dòng)的液壓系統(tǒng)由滑臺(tái)移動(dòng)控制凸輪來(lái)控制，工作臺(tái)的移動(dòng)和夾具的夾緊與放松由電磁閥控制。

根據(jù)設(shè)計(jì)要求，工作臺(tái)的移動(dòng)和滑臺(tái)的移動(dòng)應(yīng)嚴(yán)格按規(guī)定的時(shí)序同步進(jìn)行，兩種運(yùn)動(dòng)密切配合，以提高生產(chǎn)效率。

1. 控制要求

系統(tǒng)通電，自動(dòng)起動(dòng)液壓泵電動(dòng)機(jī)M1。若機(jī)床各部分在原位（工作臺(tái)在鉆孔工位SQ1動(dòng)作，鉆孔滑臺(tái)在原位SQ2動(dòng)作，攻絲滑臺(tái)在原位SQ3動(dòng)作），并且液壓系統(tǒng)壓力正常，壓力繼電器PV動(dòng)作，原位指示燈HL1亮。

將工件放在工作臺(tái)上，按下起動(dòng)按鈕SB，夾緊電磁閥YV1得電，液壓系統(tǒng)控制夾具將工件夾緊，與此同時(shí)控制凸輪電動(dòng)機(jī)M2得電運(yùn)轉(zhuǎn)。當(dāng)夾緊限位SQ4動(dòng)作后，表明工件已被夾緊。

起動(dòng)鉆孔動(dòng)力頭電動(dòng)機(jī)M3，且由于凸輪電動(dòng)機(jī)M2運(yùn)轉(zhuǎn)，控制凸輪控制相應(yīng)的液壓閥使鉆孔滑臺(tái)前移，進(jìn)行鉆孔加工。當(dāng)鉆孔滑臺(tái)到達(dá)終點(diǎn)時(shí)，鉆孔滑臺(tái)自動(dòng)后退，到原位時(shí)停，M3同時(shí)停止。

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 【   黃工】

  【品質(zhì)超群廈門(mén)莫格電氣自動(dòng)化，    咨詢 】   

  【工控專家廈門(mén)莫格電氣自動(dòng)化，    手機(jī)  】

  【工控專家廈門(mén)莫格電氣自動(dòng)化，咨詢   】

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