Automatic door device for numerical value controlled machine tool

Abstract

The present invention discloses one kind of automatic door assembly for numberically controlled machine tool. The automatic door assembly includes one door sheet unit, one driving unit and one interlock unit. The driving unit has one motor, one shaft coupling and one driving wheel; and the interlock unit has one driven wheel, one flexible element set between the driving wheel and the driven wheel and one interlock part fixed to the door sheet unit and interlinking with the belt unit. The driving unit drives the door sheet unit through the flexible element, and the resistance to the door sheet unit may be returned through the belt unit for the shaft coupling to be separated from the motor and the motor to rotate idly, so as to reach use safety.

Description

technical field [0001] The invention relates to a numerical control (NC) machine tool, in particular to an automatic door device of the numerical control machine tool which can prevent human body from being pinched and has the function of safe use. Background technique [0002] Referring to Fig. 1, a general numerical control (NC) machine tool 10 mainly has a machine platform 11, a movable door panel 12 slidingly arranged in front of the machine platform 11, and a driving element 13 arranged at the top of the machine platform 11 , the inside of the machine 11 is recessed with a processing chamber 111, the processing chamber 111 is usually provided with components such as the spindle head, tool seat and tailstock (not shown in the figure), and the driving element 13 is extended with a The mandrel 131 connected with the movable door panel 12, the user can activate the driving element 13 to actuate the retraction of the mandrel 131, and the movable door panel 12 will be driven ...

AI Technical Summary

Problems solved by technology

[0003] The above-mentioned movable door panel 12 can indeed close the processing chamber 111 to produce a protective effect, but there will still be dangerous situations in use. The movable door panel 12 utilizes the driving element 13 to drive the displacement. Sometimes the hands or clothes are pinched by the movable door panel 12 due to careless operation. Since the driving element 13 is generally a pneumatic hydraulic component, the driving force is large and there is no design to return in case of resistance. When the movable door panel 12 is pinched When the human body condition occurs, the driving element 13 will still continuously output the driving force to the movable door panel 12, which will often cause great harm to the user's body and is quite dangerous to use.

Images