Abstract:
An automatic lathe (10), comprising a first spindle (14) having a rotating axis (14a), a first tool post (18) capable of holding a plurality of tools (22) in parallel with each other, a second tool post (20) capable of holding the plurality of tools (22) in parallel with each other on each of first and second rows showing the blade tip directivities different from each other, and a second spindle (16) having a rotating axis (16a) in parallel with the rotating axis of the first spindle and capable of being disposed opposedly to the first spindle, all mounted collectively on a lathe frame (12), wherein the first spindle is allowed to be moved linearly along a first control shaft in parallel with the rotating axis of the first spindle, the first tool post is allowed to be moved linearly along a second control shaft crossing perpendicular to the first control shaft, the second tool post is allowed to be moved linearly along a third control shaft crossing perpendicular to the first control shaft and along a fourth control shaft in parallel with the first control shaft, and the second spindle is allowed to be moved linearly along a fifth control shaft in parallel with the third control shaft and along a six control shaft in parallel with the first control shaft, whereby a control device (106) is allowed to simultaneously perform a first machining operation related to the first spindle using a desired tool selected by the first tool post, a second machining operation related to the first spindle using a desired tool selected from the first row by the second tool post, and a third machining operation related to the second spindle using a desired tool selected from the second row by the second tool post.
Abstract:
An apparatus is described for simultaneously forming a plurality of closely spaced, parallel grooves (11) for receiving O-rings therein and having a web between them in a thin-walled tube of an aluminium tubular coupling. The apparatus comprises means for holding said tube (20) in a fixed position during a cutting operation and a rotating cutting tool (16) for cutting said grooves (11) in said tube, the cutting tool (16) rotating about the fixed tube (20) to form the plurality of grooves (11). The cutting tool (16) comprises an insert form cutter (40) having a plurality of cutting blades (60) for cutting the grooves (11), which are separated by a predetermined distance. The insert form cutter (40) further comprises a plurality of chip relief members (66), each one of which is associated with each of the cutting blades (60) and extending across the cutting edge (54) of the insert form cutter (40). A holder (32) holds the insert form cutter (40) and includes means for preventing misalignment of the cutter (40) therein.
Abstract:
A refacing tool includes a feed assembly that holds a first set of cutters positioned for refacing the inner shoulder of a pin or box end of a tubular and a second set of cutters positioned for refacing the outer shoulder of the pin or box end. The axial spacing between the first set of cutters and the second set of cutters is fixed and determined by the geometry of the feed assembly. The refacing tool can simultaneously reface the inner shoulder and the outer shoulder, as well as chamfers.
Abstract:
A clamshell lathe that can be utilized to machine or mill a portion of a workpiece such as a tube or pipe, wherein the clamshell lathe is a generally annular device that includes a stationary member and a rotatable member each preferably comprising semi-cylindrical halves that are connected together around the workpiece to be machined. The stationary member includes a bearing channel in which bearings of the rotatable member travel when the rotatable member is activated. In a preferred embodiment, an inner wall of the bearing channel has an angled end portion that is positioned adjacent an angled end portion of the rotatable member.
Abstract:
An automatic lathe (10), comprising a first spindle (14) having a rotating axis (14a), a first tool post (18) capable of holding a plurality of tools (22) in parallel with each other, a second tool post (20) capable of holding the plurality of tools (22) in parallel with each other on each of first and second rows showing the blade tip directivities different from each other, and a second spindle (16) having a rotating axis (16a) in parallel with the rotating axis of the first spindle and capable of being disposed opposedly to the first spindle, all mounted collectively on a lathe frame (12), wherein the first spindle is allowed to be moved linearly along a first control shaft in parallel with the rotating axis of the first spindle, the first tool post is allowed to be moved linearly along a second control shaft crossing perpendicular to the first control shaft, the second tool post is allowed to be moved linearly along a third control shaft crossing perpendicular to the first control shaft and along a fourth control shaft in parallel with the first control shaft, and the second spindle is allowed to be moved linearly along a fifth control shaft in parallel with the third control shaft and along a six control shaft in parallel with the first control shaft, whereby a control device (106) is allowed to simultaneously perform a first machining operation related to the first spindle using a desired tool selected by the first tool post, a second machining operation related to the first spindle using a desired tool selected from the first row by the second tool post, and a third machining operation related to the second spindle using a desired tool selected from the second row by the second tool post.
Abstract:
A numerically controlled lathe for working a plurality of workpieces simultaneously in various ways. The NC lathe comprises a first and a second spindle (121, 131), a first tool post (160) on which are mounted a tool (T1) and/or a tool (T2) to cut workpieces (W1, W2) held on the spindles, and a second tool post (180) on which are mounted a tool (T3) and/or a tool (T4) to cut workpieces (W1, W2). The first tool post (160), the tool post (180) and a second headstock (130) are freely movable along the Z- and X-axes. A numerical control device (191) controls the movements of the first tool post (160), the second tool post (180) and the second headstock (130) along the Z- and X-axes. As a result, at least three of the four tools (T1-T4) may simultaneously work two workpieces in different ways.
Abstract:
A numerically controlled lathe for working a plurality of workpieces simultaneously in various ways. The NC lathe comprises a first and a second spindle (121, 131), a first tool post (160) on which are mounted a tool (T1) and/or a tool (T2) to cut workpieces (W1, W2) held on the spindles, and a second tool post (180) on which are mounted a tool (T3) and/or a tool (T4) to cut workpieces (W1, W2). The first tool post (160), the tool post (180) and a second headstock (130) are freely movable along the Z- and X-axes. A numerical control device (191) controls the movements of the first tool post (160), the second tool post (180) and the second headstock (130) along the Z- and X-axes. As a result, at least three of the four tools (T1-T4) may simultaneously work two workpieces in different ways.