152results about "Boring/drilling apparatus" patented technology

In this thread cutting insert, on a common edge section of front and back faces of an insert main body, there is formed a pair of cutting edge sections that project from the edge section when seen from a direction facing the front and back faces, and on at least two of four projecting faces that respectively face the front and back face sides of the pair of these cutting edge sections, there is formed a thread cutting edge with the projecting face serving as a rake face.

The invention relates to a manual self-centering clamp for a thin-walled part. The manual self-centering clamp is characterized in that at least two groups of radial through holes are formed in a positioning column of a mandrel in the axial direction; each group of radial through holes comprise three or four radial through holes uniformly distributed in the same cross section of the positioning column; positioning clamping columns are connected into the radial through holes in a clearance fit manner; a multi-stage cone shaft is connected into a step inner hole of the mandrel in a clearance fit manner; a reset spring connected onto the multi-stage cone shaft in a sleeving manner is mounted between a boss at the front end of the multi-stage cone shaft and the front-end step surface of the step inner hole; the rear end of the multi-stage cone shaft is connected with an inner hole of an end cover in a clearance fit manner, and the end cover is fixedly connected onto the rear end of the positioning column; conical columns corresponding to the groups of radial through holes are arranged in the middle of the multi-stage cone shaft; each conical column comprises a front-end circular truncated cone and a rear-end circular truncated cone; the conical column surface of each conical column is contacted and connected with the bottom end of the corresponding positioning clamping column; a connecting base is arranged on the end cover; a manual driving rod is mounted in the connecting base; the driving end of the manual driving rod is contacted and connected with the bottom surface of a groove in the rear end of the multi-stage cone shaft.

A curtain assembly comprises a rotatable drive element wherein at least one helical guide structure is formed on, or into, the outer surface of the drive element. A drive attachment element having a structure that communicates with the helical guide structure to move the drive attachment element axially along the drive element when the drive element is rotated. Specific embodiments incorporate either a manual or motor-driven rotation assembly for rotating the drive element. Further specific embodiments involve a helical guide structure that comprises a helical groove and a structure that comprises a tooth that engages with the helical groove.

Pipe machining apparatuses are provided. In some aspects, a pipe machining apparatus may include a hinge to allow two sections of the pipe machining apparatus to move relative to one another. In another aspect, a support member may be provided to support a pipe machining apparatus on a surface. In a further aspect, a support member may be provided that allows lifting of a pipe machining apparatus in either a horizontal position or a vertical position.

The tubular cutter disclosed herein is useful for severing downhole tubulars and comprises a drive system, a pivoting system, a cutting head, and a cutting member. Cutting is accomplished by rotatingly actuating the cutting head with an associated motor, and then radially extending the cutting blade away from the cutting head. In one embodiment, the cutting head includes a cutting member that pivotally extends from the cutting head upon rotation of the cutting head.

A motorized window covering is presented having an elongated hollow rod. A battery tube is positioned within the hollow rod. The battery tube has a hollow interior with an elongated spring therein and a stop positioned adjacent an open end of the battery tube. An end cap closes the open end of the battery tube. A plurality of batteries are inserted in end-to-end alignment into the hollow interior of the battery tube. As each battery is inserted, the stop deflects thereby allowing the battery past the stop. Once each battery passes the stop, the stop moves into a stop position thereby holding the battery within the battery tube. To remove each of the plurality of batteries, the stop is deflected and the spring forces the battery out of the hollow interior of the battery tube. The battery tube is electrically connected to a motor that when activated rotates the rod thereby operating the window covering.

Pipe machining apparatuses are provided. In some aspects, a pipe machining apparatus may include a hinge to allow two sections of the pipe machining apparatus to move relative to one another. In another aspect, a support member may be provided to support a pipe machining apparatus on a surface. In a further aspect, a support member may be provided that allows lifting of a pipe machining apparatus in either a horizontal position or a vertical position.

The invention provides a finish turning clamp for machining a high-precision thin-wall part. The finish turning clamp comprises a body, a pull rod and an extension rod, wherein a circular through hole is formed in the center of the body; the pull rod is arranged in the circular through hole of the body, and also capable of stretching and retracting freely in the circular through hole; one end of the body is connected to a machine tool transition disc, while the other end of the body is provided with an end face and an outer conical surface; a quick-change flat washer sleeves the body, and the end face of the body is used for supporting the quick-change flat washer, and a sticking power lock sleeves the outer conical surface of the body; one end of the pull rod is connected to a machine tool hydraulic cylinder, while the other end of the pull rod is connected with one end of the extension rod; a gland is arranged on the other end of the extension rod; a washer and a slotted washer orderly sleeve the pull rod from one end to the other end, and the slotted washer is fitted with the gland; further, a compression spring sleeves the extension rod, and is located between the washer and the gland; during working, a workpiece sleeves the sticking power lock between the quick-change flat washer and the slotted washer. The finish turning clamp for machining the high-precision thin-wall part structurally reduces and eliminates elastic deformation resulting from clamping.

Disclosed is a dedicated machine capable of cutting or beveling a pipe, such as a circular pipe or bar, in such a manner that a cutter unit rotates around the pipe while cutting any one surface of thepipe after gripping and fixing the pipe. A pipe cutting and beveling machine, according to the present invention, comprises: a main body unit in which a pipe passes through the center portion thereofso as to be fixed; and a cutter unit which is coupled to the main body unit so as to cut or bevel the pipe by means of a cutting blade while rotating around the fixed pipe, wherein the cutter unit may be provided with a rotating unit on one side thereof so as to pull the cutter unit aside and a locking unit on the other side thereof so as to restrain or release the cutter unit from being pulled aside. In addition, an entry control unit, which operates the cutter unit to move forward or backward, may comprise: a lever which is gear-engaged with an outer side surface of an entry control plate;and a clutch which is formed on a rotation shaft of the lever such that the restraint thereof is released when the lever is lifted or pressed in the axial direction.

The invention discloses a pipe stabilizing and rotating device. The pipe stabilizing and rotating device comprises a base, and a motor arranged on the base; a rotating shaft of the motor is connected with a hollow main shaft; the main shaft includes an outer cylinder and an inner cylinder; an annular gap is formed between the outer cylinder and the inner cylinder; an electric push rod, a connecting rod, a slide block and a stopper are arranged in the annular gap; the two ends of the connecting rod are respectively hinged with the electric push rod and the slide block; the stopper is fixed at the end part of the annular gap; the surface of the stopper is a curved surface gradually inclined outwards from the inner cylinder to the outer cylinder in the main shaft extending direction; and the slide surface of the slide block is matched with the surface of the stopper. The invention aims to provide the pipe stabilizing and rotating device, solves the problem of inconvenience for clamping and rotation in the pipe processing process in the prior art, and realizes the purpose of conveniently and quickly stabilizing a pipe to be processed while rotating.

A clamping device (01), for use on a lathe, includes a plurality of basic clamping supports (06), which can be moved in a star-shaped formation in relation to an axis of rotation and on each of which a clamping jaw (11) for clamping workpieces can be attached. The basic clamping supports (06) can be adjusted simultaneously by means of an adjusting drive (21, 36) of the clamping device (01). At least two basic clamping supports (06) are coupled directly or indirectly to one another by an outer rocker (15). At least in the middle of the adjusting path, a limited inward displacement of a basic clamping support (06a, 06c, and 06b, 06d, respectively) leads to a swiveling of the outer rocker (15a, 15c) and an outward displacement of the other coupled basic clamping support (06b, 06d, and 06a, 06c, respectively).

The invention provides a numerical control finish turning processing method of an annular Omega-shaped groove of a titanium alloy thin wall disc ring piece. The numerical control finish turning processing method of the annular Omega-shaped groove of the titanium alloy thin wall disc ring piece includes: confirming an allowance in each finish turning processing stage of the annular Omega-shaped groove of the titanium alloy thin wall disc ring piece; confirming a processing scheme of the finish turning stages of the annular Omega-shaped groove of the titanium alloy large diameter thin wall disc ring piece; compiling a numerical control turning program of the finish turning stages of the annular Omega-shaped groove of the titanium alloy large diameter thin wall disc ring piece; controlling a processing route of each numerical control finish turning processing stage of the annular Omega-shaped groove of the titanium alloy thin wall disc ring piece. The numerical control finish turning processing method of the annular Omega-shaped groove of the titanium alloy thin wall disc ring piece breaks a technical bottleneck in processing of a titanium alloy piece of special structure, improves processing efficiency on the premise of meeting processing technology requirements of the annular Omega-shaped groove of the titanium alloy large diameter thin wall disc ring piece in numerical control turning of a titanium alloy material supercharging first stage disc, achieves high efficiency processing of the annular Omega-shaped groove of the titanium alloy large diameter thin wall disc ring piece, solves the problems that the annular Omega-shaped groove of the titanium alloy large diameter thin wall disc ring piece is low in processing efficiency and long in machine occupying time, and alleviates production bottlenecks in machining of a vertical lathe.