A miller, a non-transitory computer readable medium, and a method for milling a multi-layered object. The method may include (i) receiving or determining milling parameters related to a milling process, the milling parameters may include at least two out of (a) a defocus strength, (b) a duration of the milling process, (c) a bias voltage supplied to an objective lens during the milling process, (d) an ion beam energy, and (e) an ion beam current density, and (ii) forming a crater by applying the milling process while maintaining the milling parameters, wherein the applying of the milling process includes directing a defocused ion beam on the multi-layered object.

A linear motion mechanism includes: a shaft; a base member having a through hole through which the shaft can be inserted; a static pressure bearing provided between the shaft disposed in the through hole and the base member to slidably support the shaft relative to the base member by introducing a pressurized fluid to the shaft; and an annular member provided between the static pressure bearing and the base member to elastically support the static pressure bearing.

A component placement device is provided. The component placement device includes a machine frame, a subframe supported by the machine frame, and a component pickup unit. The component pickup unit is movable relative to the subframe. The component pickup unit is movable by a first drive at least in a direction of movement. The component placement device includes a movable counter-mass being movable relative to the subframe by a second drive in a direction opposite to the direction of movement of the component pickup unit to at least partially counteract a reactive force exerted on the subframe by the component pickup unit during movement of the component pickup unit in the direction of movement relative to the subframe.

A robot includes an arm rotating around a rotation axis, a motor including a motor body including a rotating output shaft and a motor cover configured to cover at least a part of the motor body, the motor generating a driving force for turning the arm, and a brake attached to the motor and capable of braking the output shaft. The motor cover includes an attachment configured to attach the motor to the arm and a positioning section configured to position the brake with respect to the motor. The attachment and the positioning section are integrally formed.

An actuator includes a rotary motor, a spline member, a linear motor and an output part. The rotary motor includes a rotary mover with a rotational axis, the rotary mover being configured to rotate around the rotational axis. The spline member includes a first member that receives torque from the rotary mover, and a second member. The linear motor includes a linear mover that receives torque from the second member, and a linear stator. The linear mover penetrates the linear stator in a direction of the rotational axis.

A tool holder for a machine includes a frame and an actuator that can be moved from a retracted state to an extended state and back. The frame includes a hook shaped recess having an opening and a cut out arranged at a distance from the hook shaped recess so that a front bracket pin of a tool can releasably connect to the hook shaped recess by entering the opening and a rear bracket pin of the tool can releasably connect to the cut out. The actuator is fixedly connected to the frame with one end. The actuator includes a locking element that is designed to change the shape of the cut out in the extended state of the actuator. The actuator includes a securing assembly designed to reduce the size of the opening of the hook shaped recess in the retracted state of the actuator. The rear bracket pin can enter the cut out in the retracted state of the actuator and the front bracket pin can enter the hook shaped recess in the extended state of the actuator.

A component placement device is provided. The component placement device includes a machine frame, a subframe supported by the machine frame, and a component pickup unit. The component pickup unit is movable relative to the subframe. The component pickup unit is movable by a first drive at least in a direction of movement. The component placement device includes a movable counter-mass being movable relative to the subframe by a second drive in a direction opposite to the direction of movement of the component pickup unit to at least partially counteract a reactive force exerted on the subframe by the component pickup unit during movement of the component pickup unit in the direction of movement relative to the subframe.

An auxiliary milling unit configured to be coupled to a movable main milling unit of a milling machine includes an auxiliary milling tool and a mounting portion configured to couple the auxiliary milling unit to the main milling unit. The mounting portion is movable with the main milling unit. An auxiliary movement assembly is coupled to the mounting portion and the auxiliary milling tool. The auxiliary movement assembly is movable relative to the mounting portion to move the auxiliary milling tool relative to the main milling unit.

The present invention discloses a double-swing angle spindle head, in which an A-axis swing shaft is connected to the spindle head through the flange on the end face to realize the swing of the A-axis, and a crank connecting rod mechanism composed of a first rotating shaft, a second rotating shaft, a B-axis rotating shaft and a swing connecting rod realizes the swing of the B-axis under the push-pull action of the B-axis mechanism. Under the action of the linear push-pull mechanism, the linear axis feed movement between a ram and a saddle is realized. Thus, the freedom of movement range of the spindle head is improved, the rigidity, torque and precision of the spindle head are enhanced, and the volume and weight of the spindle head equipment are reduced.

The present invention provides a linkage swing head structure, including: a base, a drive mechanism and a spindle. The drive mechanism includes: a power mechanism, a connecting rod mechanism and a lead screw. An end of the spindle is fixed with a cutter, and the spindle is fixed on an end of the connecting rod mechanism. An end of the connecting rod mechanism fixed with the spindle is sleeved on a support bearing, the connecting rod mechanism can rotate around the support bearing, the support bearing is fixed on the base, and the other end of the connecting rod mechanism is movably connected to the lead screw. An output end of the power mechanism is connected to an end of the lead screw. The connecting rod mechanism adjusts the rotation angle of the spindle by sliding on the lead screw. The drive mechanism of the present invention is far away from the spindle, and the interference range thereof to the spindle is small. The spindle can be automatically and continuously indexed, and can also perform linkage machining with small cutting amount, and thus, when the cutter rotates by the same angle, the volume of the device is reduced; the structure is simple and the manufacturing cost is low.