RU199627U1 - Device for flattening the ends of pipe sections - Google Patents

Abstract

The utility model relates to the processing of metals by pressure and can be used in the manufacture of metal products from pipes. The device contains an upper and a lower plate, fastened together by means of a hinge joint. The bottom plate is made in the form of a channel made of a channel, which is equipped with a guide support for a pipe section, made in the form of a square, perpendicularly fixed on it, and a stop for the pipe section along the length of the guide support. The upper plate is made in the form of a pressure tube, which is provided with an L-shaped plate from below. As a result, the design of the device is simplified and the safety of work arising from a blow with a sledgehammer is increased. 1 h. p. f-ly, 2 ill.

Description

The utility model relates to the processing of metals by pressure, namely to devices that allow mechanical action on the pipe (flattening of the pipe ends), and can be used in the oil and gas, petrochemical, engineering and other industries when organizing work on the manufacture of fences or other metal products.

Known hand tool for bending pipes (ed. Certificate No. 1819708, IPC B21D 7/00, publ. 07.06.1993, bull. No. 21), containing a body with a handle and two grippers of different lengths, separated by a radius section, a larger grip is made in the shape of a hook with a supporting surface on the inner side of the hook, and a smaller one with a supporting surface at the end, placed opposite to the supporting surface on the larger grip, and both supporting surfaces in the light are made in the form of parts of a circle, in order to expand technological capabilities by ensuring the bending of pipes of two standard sizes, a pair of additional support surfaces with a radius smaller than the radius of the main support surfaces is made on it, while one of the latter is made on the radius section of the body, and a hook-shaped protrusion is made on the smaller grip located on the side of the larger grip, with another additional support surface made from the first side.

The disadvantage of the known device is its limited application, since it is intended for bending pipes of two standard sizes.

Also known is a hand tool for bending pipelines (ed. Certificate No. 1207561, IPC B21D 7/02, publ. 01/30/1986, bul. No. 4), containing bending elements associated with the power mechanism, in order to simplify maintenance when bending pipelines in a limited space, the bending elements are made in the form of two split half-couplings with central holes for placing a pipeline with rounded working edges and conical flanges, on the periphery of which on both sides there are annular guide grooves for interaction with the power mechanism.

The disadvantages of the known device are the inconvenience during operation associated with the need to put on the half-couplings in sequence, the connection with bolts to fix the pipeline, the exact determination of the bend point.

The closest is the method and device for cutting the ends of pipes and flattening the ends of the pipes (Patent RU No. 2363558, IPC B21D 28/28, 21/00, publ. 10.08.2009, bull. No. 22). The device for flattening the ends of the pipes includes two plates that are mirrored relative to the axis of the pipe, lower and upper, plates to ensure their plastic deformation until the inner surfaces of the walls close and form a transition zone from the flattened section to the cylindrical section of the pipe.

The disadvantages of the device are the limited technological capabilities, low accuracy when flattening the ends of the pipes.

The technical tasks are to create an easy-to-use structure that allows to increase production rates in the manufacture of fences, reduce labor costs, and improve labor safety.

Technical problems are solved by a device for flattening the ends of pipe sections, including the bottom and top plates.

The novelty is that the lower plate is made in the form of a channel frame, and the upper plate is made in the form of a pressure tube, which are fixed with a hinged joint, while the channel frame is equipped with a perpendicularly fixed guide support in the form of a square and a travel stop along the length, and the pressure tube from below equipped with an L-shaped plate.

Also new is the fact that the channel frame is additionally equipped with a limiting element from the rod, which sets the direction of movement of the pressure tube.

FIG. 1 shows a device for flattening the ends of pipelines, side view.

FIG. 2 shows a device for flattening the ends of pipelines, top view.

The device for flattening the ends of the pipe sections includes a bottom and an upper plate. The lower plate is made in the form of a frame made of channel 1, and the upper one is in the form of a pressure tube 2, which are fixed with a hinged joint 3. The frame of channel 1 is equipped with a guide support 4 in the form of a square, which is perpendicularly fixed by welding to the frame 1 and allows positioning the workpiece 5 for flattening the ends. Also, the bed 1 is equipped with a travel stop 6 along the length, which prevents the movement of the workpiece 5 along the guide support 4 along the length. The clamping tube 2 is provided from the bottom with an L-shaped plate 7, which prevents the workpiece 5 from slipping out and provides the necessary flattening area during work. The L-shaped plate 7 is made in the form of a corner welded onto the lower generatrix of the clamping tube 2, and ensures that the end of the workpiece 5 is located strictly under the L-shaped plate 7.

Also, the bed from the channel 1 is additionally equipped with a limiting element 8 made of a bar segment, for example, 25 mm in diameter, and connected by means of a welded joint, which sets the direction of movement of the pressure tube 2 and limits (does not allow) its displacement and movement from the axis.

The device for flattening the ends of pipe sections works as follows.

The workpiece 5 (the end of the pipe segment) is laid on a guide support 4 in the form of a square, which is perpendicularly fixed to the frame 1 and ensures its immobility. The workpiece 5 is advanced to the travel stop 6, with the help of which the movement of the workpiece 5 along the guide support 4 is excluded. Next, pressing is performed with the clamping tube 2 equipped with an L-shaped plate 7, the edge of the workpiece 5 of the pipe section is flattened. It is possible to increase the pressing force by increasing the length of the clamping tube 2, by inserting a pipe of the required length with a smaller diameter into the clamping tube 2, we provide the required force.

The structure is collapsible, it is possible to move to another object.

The proposed device for flattening the ends of pipe sections is easy to manufacture, allows you to increase the production rates in the manufacture of fences, reduce labor costs and increase the safety of work that occurs during operations when striking with a sledgehammer.

Claims (3)

1. A device for flattening the end of a pipe segment, containing a lower and an upper plate, characterized in that the lower plate is made in the form of a channel from a channel, and the upper plate is made in the form of a pressure tube, which are fastened together by means of a hinged joint, while the frame from a channel is equipped with perpendicular to a guide stand for a pipe section, made in the form of a square, and a stop for the pipe section along the length of the guide stand, and the pressure tube is provided with an L-shaped plate from below. 2. The device according to claim. 1, characterized in that the bed of the channel is made with a limiting element in the form of a rod, which sets the direction of movement of the pressure tube.

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