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大型组合机床电气操纵挡铁系统主要是由BK—211行程开关与各种用途的挡铁组成,开关数一般为2～5个。对于自驱式液压动力头,它可起原位、联锁、退回作用,对于他驱式液压动力头,除上述作用外,还起第Ⅰ工作进给,第Ⅱ工作进给作用。因此,挡铁系统的可靠性对保证机床正常工作具有重要意义。 从开始生产组合机床以来,挡铁系统一直存在质量问题。经调查得知:这些问题主要表现在挡铁系统工作时开关将挡铁压弯,致使系统失灵,影响机床的正常工作,甚至造成设备事故。为解决上述问题,大连机床厂在机床装配时往往要对挡铁和开关进行多
Large-scale combination of machine electrical control of the iron system is mainly composed of BK-211 travel switch with a variety of purposes of the composition of iron, the switch is generally 2 to 5. For self-propelled hydraulic power head, it can be in-position, interlock, return role, for his drive-type hydraulic power head, in addition to the above-mentioned role, but also from the first Ⅰ work feed, Ⅱ work feed role. Therefore, the reliability of the iron block system to ensure the normal operation of the machine is of great significance. Since the beginning of the production of modular machine tools, there have been quality problems stop iron system. After investigation, we know that these problems are mainly manifested in the work of the iron block switch will block iron bending, resulting in system failure, affecting the normal operation of the machine, and even cause equipment accidents. To solve the above problems, Dalian Machine Tool Plant often in the assembly of the machine to stop the iron and more