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903results about "Tool holders" patented technology

Automatic lathe

An automatic lathe (10) is provided with a first spindle (14) having an axis of rotation (14a), a first tool rest (18) capable of holding a plurality of tools (22) in a parallel arrangement, a second tool rest (20) capable of holding a plurality of tools (22) in parallel arrangements in a first row and second row exhibiting mutually different nose orientations, and a second spindle (16) having an axis of rotation parallel to the axis of rotation of the first spindle and capable of being located facing the first spindle, in such a manner as to be centrally carried on a lathe bed (12). The first spindle can move linearly along a first control axis parallel to its axis of rotation. The first tool rest can move linearly along a second control axis perpendicular to the first control axis. The second tool rest can move linearly along a third control axis perpendicular to the first control axis and a fourth control axis parallel to the first control axis. The second spindle can move linearly along a fifth control axis parallel to the third control axis and a sixth control axis parallel to the first control axis. A control unit (106) enables simultaneous performance of first machining work relating to the first spindle by a desired tool selected at the first tool rest, second machining work relating to the first spindle by a desired tool selected from the first row at the second tool rest, and third machining work relating to the second spindle by a desired tool selected from the second row at the second tool rest.
Owner:CITIZEN WATCH CO LTD

Tool interface

A tool interface (5) that is easy to produce but also precise for coupling a tool head (2) to a tool shank (3) in a centered manner in respect of a shank axis (4), comprises a first interface part (6) that is connected to the tool shank (3) or to the tool head (2), and a second interface part (7) that is connected to the respectively other tool part, namely, to the tool head (2) or to the tool shank (3). The two interface parts (6, 7) have interface surfaces (9, 10) that substantially complement each other and are intended to bear flatly on each other. The interface surface (9) of the first interface part (6) comprises an inner cone surface (21) and an outer cone surface (22), which surrounds the latter on the outside and coaxially. The interface surface (9) of the second interface part (7) comprises an outer cone surface (27), which corresponds with the inner cone surface (21) of the first interface part (6), and an inner cone surface (28), which corresponds with the outer cone surface (22) of the first interface part (6). In the case of a first invention variant, an annular web (23) formed between the inner cone surface (21) and the outer cone surface (22) of the first interface part (6) is slotted by at least one recess (24). In the case of a second invention variant, the second interface part (7) has a central bore (20) surrounded coaxially by its outer cone surface (27), an annular web (29) formed between the outer cone surface (27) and this bore (20) being in this case slotted by at least one recess (24).
Owner:KENNAMETAL INC

Adjustment method of inner-profile radial floating tool rest and tool

The invention relates to an internal profile modeling tool apron which is used in a steel pipe flat-end-face chamfering device in a large-dimensional and straightly welded seam pipe production line and floats along the radial direction; the tool apron comprises a cutter head, of which the end face are symmetrically provided with four sliding base bodies along the radial direction; each sliding base body is provided with a floating tool apron by a connecting screw rod; a cutter is vertical to the side wall of a steel pipe and arranged on the outer end of the floating tool apron, namely, the end far from an axis; the rear part of the cutter is provided with screw threads which are connected with a cutter adjusting mechanism; the end faces and the middle part of the sliding base bodies are provided with a spring slots; a plurality of dish-shape springs are sheathed on the connecting screw rod and arranged in the spring slots; the outer end of the connecting screw rod is provided with a spring adjusting nut; floating stroke adjusting nuts are arranged on the connecting screw rod and at the inner end of the spring adjusting nut; a profile modeling rolling is arranged at the inner end of the floating tool apron and rolls against the interior wall of the steel pipe; the position of the cutter and the steel pipe wall are relatively fixed, thereby simultaneous penetration of four cutters on the cutter head, even turning, no easy collision of the cutters and high production efficiency are ensured. The invention also relates to an adjusting method of the cutters.
Owner:TIANSHUI METALFORMING MACHINE TOOL GROUP

Cylindrical deep hole boring device with auxiliary supporting

ActiveCN102717118AMeet roughness quality requirementsAvoid scratchesBoring barsTool holdersMachined surfacePosition error
The invention relates to a cylindrical hole processing device, in particular to a cylindrical deep hole boring device with auxiliary supporting, which solves the problem that in the machining process of the current cylindrical hole processing device, a cutter can scratch the machined surface during returning, a boring rod is seriously deformed when a hole is deeper, and the shape and position errors of the bored hole is large. The cylindrical deep hole boring device comprises the boring rod and a boring cutter, wherein holes are formed in the axial center and the radial direction of the boring rod, and the boring cutter is installed in the radial hole of the boring rod; a double-cone core rod is arranged in the axial hole of the boring rod; two cone bodies are arranged at the front end of the double-cone core rod, and the tapers of the two cones of the two cone bodies are equal; a floating gripper is also installed on the boring rod; and a tapered hole is formed in the boring cutter, and the axis direction of the tapered hole is parallel to that of the boring rod. The cylindrical deep hole boring device has the beneficial effects that when the cutter returns, the cutter leaves the machined surface to avoid to scratch the surface; the quality requirement of the workpiece roughness is met; the shape and position errors of the bored hole is small; and the boring rod is not easily deformed.
Owner:ZHONGBEI UNIV
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