A machining head is provided with a turret on which multiple rotating tools are mounted, and this head is configured such that rotation of each of the multiple rotating tools during machining and rotation of the turret are performed by a single motor. A switchable turret rotation transmission mechanism is disposed to be capable of transmitting the rotation of the motor shaft to the turret as the rotation of the turret and releasing the transmission. The rotation of each of the multiple rotating tools during the machining and the rotation of the turret can be performed by the single motor.

A tool turret, in particular provided for the use for a machine tool, has a pivotable tool disk (10), which has on its outer circumference a plurality of receptacles (14) for holders (18) provided with working tools. The holders (18) are attached to the tool disk (10) in a changeable manner by a fixing device (20). Each holder (18) can be swiveled into a working position to permit the assigned working tool to be driven by a drive (22). For this purpose, the working tool can be coupled to an output shaft (16) of the respective holder (18) by a coupling device (26). The fixing device (20) can be actuated by the drive (22) when this drive (22) is uncoupled while stopping the working tool.

A tool rest for a machine tool, with a plurality of rotary tools and a tool-rotating drive shaft supported rotatably so that its rotation is transmitted to each rotary tool. The tool rest includes: a plurality of input portions fixed to the tool-rotating drive shaft; and engaging portions corresponding to the respective input portions, rotatably supported and adopted to be driven in rotation by the input portions for engaging with engaged portions of each rotary tool to transmit power when a prescribed rotational phase is reached. Adjusting means is provided between a prescribed input portion and the engaging portion, for adjusting the phase of the engaging portion relative to the tool-rotating drive shaft such that the engaging portions and the corresponding engaged portions are engaged simultaneously.

1. A tool turret

2. A tool turret, in particular provided for the use for a machine tool, having a pivotable tool disk (10), which has on its outer circumference a plurality of receptacles (14) for holders (18) provided with working tools, wherein said holders (18) are attached to the tool disk (10) in a changeable manner by means of a fixing device (20) and, each swiveled into a working position, permit the assigned working tool to be driven by means of a drive (22), which for this purpose can be coupled to an output shaft (16) of the respective holder (18) by means of a coupling device (26), is characterized in that the fixing device (20) can be actuated by means of the drive (22) when this drive (22) is uncoupled while stopping the working tool.

The present invention relates to an integrated processing machine for positioning, trimming and punching of the ceiling splicing structure, comprising a rack and a mounting base for processing at the lower part of the rack, which is provided with a lifting and clamping device passing through the rack cooperating with the splice plate, the upper part of the rack is provided with a processing port, which cooperates with a trimming and positioning device, the trimming and positioning device comprises a lifting cylinder for trimming and positioning disposed on the mounting base for processing, the lifting cylinder for trimming and positioning is connected with a mounting base for trimming and positioning, the mounting base for trimming and positioning is provided with a first trimming knife and a second trimming knife which cooperates with the two splice plates respectively, and the mounting base for processing is provided with a processing mechanism matching with the processing mating port and cooperating with two splice plates; In the present invention, the trimming and positioning device and the processing device are designed to cooperate with each other, the trimming and positioning device is able to complete the trimming of the side slits of the splice plates while positioning the two splice plates without interfering with the operation of the hole and groove processing device, which greatly improves the efficiency of integrated processing.

A tool rest for a machine tool, with a plurality of rotary tools and a tool-rotating drive shaft supported rotatably so that its rotation is transmitted to each rotary tool. The tool rest includes: a plurality of input portions fixed to the tool-rotating drive shaft; and engaging portions corresponding to the respective input portions, rotatably supported and adopted to be driven in rotation by the input portions for engaging with engaged portions of each rotary tool to transmit power when a prescribed rotational phase is reached. Adjusting means is provided between a prescribed input portion and the engaging portion, for adjusting the phase of the engaging portion relative to the tool-rotating drive shaft such that the engaging portions and the corresponding engaged portions are engaged simultaneously.

The present invention relates to an integrated processing machine for positioning, trimming and punching of the ceiling splicing structure, comprising a rack and a mounting base for processing at the lower part of the rack, which is provided with a lifting and clamping device passing through the rack cooperating with the splice plate, the upper part of the rack is provided with a processing port, which cooperates with a trimming and positioning device, the trimming and positioning device comprises a lifting cylinder for trimming and positioning disposed on the mounting base for processing, the lifting cylinder for trimming and positioning is connected with a mounting base for trimming and positioning, the mounting base for trimming and positioning is provided with a first trimming knife and a second trimming knife which cooperates with the two splice plates respectively, and the mounting base for processing is provided with a processing mechanism matching with the processing mating port and cooperating with two splice plates; In the present invention, the trimming and positioning device and the processing device are designed to cooperate with each other, the trimming and positioning device is able to complete the trimming of the side slits of the splice plates while positioning the two splice plates without interfering with the operation of the hole and groove processing device, which greatly improves the efficiency of integrated processing.

The present invention relates to embodiments of a machine tool, in particular a multi-spindle milling machine, comprise a machine frame, a workpiece clamping device for clamping a workpiece, an axis slide assembly arranged on the machine frame, and a spindle carrier assembly which is arranged on the machine frame and has at least two tool-carrying work spindles. The axis slide assembly is configured to linearly move the workpiece clamped at the workpiece clamping device by way of three controllable linear axes X, Y and Z. The work spindles are arranged at a turret which can be rotated or swiveled about a turret axis at respectively equal distance from the turret axis, and the spindle axes of the work spindles are aligned or can be aligned in parallel to one another and in parallel to the turret axis.

A tool replacement apparatus according to the present invention includes: a turning tool magazine capable of attaching or removing a tool to/from a spindle of a machine tool; a tool replacement control unit which controls operations of turning the tool magazine and attaching or removing a tool to/from a spindle; and a setting unit which sets a rotatable range of the tool magazine. The tool replacement control unit includes: a determining unit which determines whether or not a designated rotation angle in an instruction for turning the tool magazine is within the rotatable range set by the setting unit; and a unit which stops an operation of replacing a tool when the determining unit determines that a designated rotation angle is out of a rotatable range.

A protection tool for an electronic drill provides various functions when drilling is carried out. The electronic drill has a front end with a through hole located at the front end and a drill head extending through out the through hole. The protection tool is moveably mounted at the front end of the electronic drill along an operation direction. A guard plate includes a pore aligning with the through hole and provides pass way for the drill head. A supporting frame is assembled with the guard plate and is moveably mounted at the front end of the electronic drill along the operation direction, so that the guard plate is positioned at a variable distance from the front end according to the movement of the supporting frame with respect to the front end.