A device for the machining of curved laminar surfaces, having a first part including a tool for machining the concave face of the surface, and first pressure device in contact with the concave face of the surface, a second part including second pressure device in contact with the convex face of the surface, and devices synchronizing the movements of the first and second parts is provided. The tool has a circular shape for the radial machining of the concave face, and the first pressure device has at least one disc parallel to the tool, the tool and disc disposed on a rotary shaft and both having a radius equal to or less than the radius of curvature of the concave face.

In a rod hole (19) of a holding rod (18) held in a guide hole (17) of a piston (10), a limit switch (20) is fixed and a detection rod (21) is inserted. A first engagement ball (30) and a second engagement ball (40) are configured to be in contact with a first cam surface (32) and a second cam surface (42), respectively, which are provided at an outer periphery of the detection rod (21). The first engagement ball (30) and the second engagement ball (40) are configured to be in contact with a first pushing portion (35) and a second pushing portion (45), respectively, which are provided inside the guide hole (17). The position of the piston (10) is detected by electrically or electronically detecting the movement of the detection rod (21) by the limit switch (20).

A method and apparatus to provide a machining table in which an article can be secured to the table. The table provides a plurality of clamp blocks which can be placed on the table in custom positions. The orientation of the clamp blocks can also be adjusted by adjustments bolts so that the desired angle of the article can be maintained before machining it. As such, a round article (e.g., a pipe) can be secured through the clamp blocks so that the article can be machined. The table would secure the article such that even a lot of force or pressure on the article would not cause the article to move.

A stiffening element for workstations with a turntable includes at least one fixed-base machining station which is provided with at least one respective tool and a turntable which is provided with at least one radial arm for supporting at least one respective clamping assembly for at least one workpiece to be machined. The element includes at least one fixed frame arranged radially and aligned with a corresponding machining station, for supporting, at its terminal end that lies below the trajectory of the at least one respective clamping assembly, a temporary restraining component for corresponding temporary restraining elements which are complementary thereto and integral with at least one respective clamping element.

A workstation includes at least one machining station with a fixed base provided with at least one tool, and at least one clamping assembly, for at least one workpiece to be machined, which can move between at least one configuration of alignment with a machining station and at least one configuration that is misaligned with respect to that station.

The center has a fixed footing, which is provided with a substantially central post for supporting a supporting surface for supporting the at least one machining station, a motor drive unit being coupled to the post.

The rotating portion of the motor drive unit is coupled to a turntable which is arranged so as to face and be proximate and parallel to the supporting surface. The at least one clamping assembly is integral with the tool.

The present concept a work piece mounting system for connecting two work elements together, includes a main body with radially oriented horizontal upper and lower jaw passageways for receiving therein upper and lower jaws respectively. The radially oriented horizontal upper and lower jaw passageways, are adapted to receive the jaws slid-ably therein, wherein the cross section of the jaws and passageways configured such that the jaws are restricted from rotating within the passageways. A vertical cavity extending vertically and centrally through the main body, along a z-axis, is for receiving a grooved end of a lower fixation element upwardly therein and a grooved end of an upper fixation element downwardly therein, wherein the other threaded end of the fixation elements are configured for detachably connecting to a working element. Wherein the jaws include a grooved portion for engaging with a grooved end of the fixation elements and are configured such that the fixation elements are drawn into the main body upon engagement of the grooved portions with the grooved ends thereby tensioning the fixation elements between the main body and a work elements. Further the angular relationship between the upper jaw passageway and the lower jaw passageway in a horizontal plane x-y relationship is selected to be able to nest the passageways to minimize a thickness T of the main body for improved rigity and dimensional stability of the work piece mounting system.

A metal plate includes a machining subject surface. The metal plate includes a first holding portion designed to be held by a chuck and a second holding portion located at a position separated from the first holding portion and designed to be held by the chuck. The method for manufacturing the metal plate includes performing reference surface machining that machines a surface of the second holding portion that is to be held by the chuck into a predetermined shape in a state in which the first holding portion is held by the chuck. The method includes releasing the first holding portion from the chuck and holding the second holding portion with the chuck. The method also includes machining the machining subject surface in a state in which the second holding portion is held by the chuck.

The present application relates to a machining assembly comprising an effector intended to be mounted on a robot with multiple degrees of freedom, in which invention the mounting of the motor spindle relative to the intermediate supports and frame of the effector allows a numerically controlled movement along three axes X, Y, Z of a trihedron, the effector bearing on the piece to be machined or on the surrounding tools by means of a ball joint at the foot end of the effector. Since the effector bears on the piece to be machined or on the surrounding tools it is possible to create local stiffness and to obtain the precision required to guarantee the quality of the machining process.

The present disclosure includes a part hold-down assembly for retaining an oversized part. The part hold-down assembly is aligned along a central force axis and applies a downward force onto the part. The part-hold down assembly includes a top plate, a bottom plate, and a compression assembly extending between the top and bottom plates. The compression assembly includes two, parallel biasing assemblies that extend along compression axes that are parallel to but offset from the central force axis. Each biasing assembly including an upper collar, a lower collar and a resilient biasing member, in one embodiment in the form of a coil spring, retained between the upper and lower collar. The parallel biasing assemblies are positioned on opposite sides from each other about the central force axis, and may be spaced away from the central force axis an equal distance.

An aeronautical aluminum alloy minimum-quantity-lubrication milling machining device includes a machine tool worktable and spindle connected with a machine tool power system. The spindle is connected with a tool holder that is fixed with a cutting tool. The machine tool worktable is provided with a machine tool fixture, the tool holder is connected with a minimum-quantity-lubrication mechanism, the machine tool fixture includes a fixture body that is fixedly provided with a limit block for contact with two adjacent side surfaces of a workpiece, the fixture body is provided with a plurality of clamping elements capable of pressing the workpiece against an upper surface of the fixture body, and a top of the clamping element is provided with a detection member for detecting a relative position between the clamping element and the spindle. The device can avoid interference and contact between a nozzle and the clamping element.