Apparatus for machining, especially cutting tubular and round section bodies
AssigneeExact Tools Oy
InventorsSeppo Makkonen, Mika Priha
Life of this patent
Estimating the term…
Abstract
An apparatus for cutting workpieces adapted to engage the workpiece in at least four points of surface engagement. The apparatus has a clamping mechanism designed to be fastened to the workpiece. The clamping mechanism has a tool unit attached which includes adjustment means for displacing the tool unit relative to the clamping mechanism towards or away from the workpiece. The clamping mechanism has a frame element and arms extending from the clamping mechanism. Each of the four arms includes a bearing wheel. Each of the wheels may be used to engage a workpiece to retain its position while it is being cut.
Claims10
An apparatus for cutting a workpiece (1), said apparatus adapted to engage said workpiece at four points of surface engagement thereof, said apparatus comprising a clamping mechanism (2) adapted to be fastened to said workpiece (1) rotatably therearound and said clamping mechanism (2) having attached thereto a tool unit (3), which is provided with adjustment means (4) for displacing said tool unit (3) relative to the clamping mechanism (2) towards or away from the workpiece (1), and said clamping mechanism (2) including a frame element (5) and first and second arms (6, 7) extending therefrom, said arms (6, 7) being articulated at one end to the frame element (5) of the clamping mechanism (2) and each arm (6, 7) has its free end fitted with a bearing axle (31, 32) respectively, which is provided each with one bearing wheel (15, 16) respectively wherein each of said bearing wheels (15,16) provide one point of said four points of surface engagement, the clamping mechanism (2) having its frame element (5) provided in a rotatable and axially immobile fashion with a threaded shaft (20), whose first end has a right-handed thread provided with a first nut (21) and whose second end has a left-handed thread provided with a second nut (22), and said threaded shaft (20) being provided with a member (23) for rotating the threaded shaft (20), and the first arm (6) and the first nut (21) are attached to each other by means of a first suspension arm (24) and the second arm (7) and the second nut (22) are attached to each other by means of a second suspension arm (25), characterized in that the apparatus further comprises two second bearing axles (33, 34), fitted adjustably relative to their mutual distance between the arms (6, 7) respectively one attached to each suspension arm (24, 25) and the frame element (5), each of said second bearing axles being provided with at least one bearing wheel (35, 36) respectively wherein each of said wheels provides one point of said four points of surface engagement.
Dependencies are inferred from the claim text.