SU1316779A1 - Machine for preparing a hub having a flange - Google Patents

Abstract

The invention relates to repair production, mainly to the restoration of worn parts. The aim of the invention is to improve the performance and quality of repairs. The part to be repaired is installed by a hub (C) in an annular blade 18, after which the rotating head (RG) 3 turns on, the high frequency inductor turns inside G, (L

Description

heating it, at the same time a cutter, touching the outer diameter of the restored part, cuts the flange. After stopping, the cutter and the inductor are retracted to the initial position, and the calibrating mandrel by hydraulic cylinder 14 enters C, and during translational movement, the mandrel 27 relative to РГ 3 is accurately oriented first by means of a spline sleeve 19, then C is cut off from the flyts using an annular core 18, then plastic deformation1

The invention relates to repair production, primarily to the restoration of worn parts, and can be used in mechanical engineering.

The purpose of the invention is to improve the performance and quality of repairs.

Figure 1 shows the machine when trimming the flange and heating the hub by high-frequency currents, a general view; figure 2 - the same, with the plastic restoration of the pinch hole; on fig.Z - section aa in figure 2; Fig. 4 shows the start of the gage mandrel entry into the guide sleeve; on fig.Z - the machine when welding a flange with a nave, a general view,

The flange hub repair machine contains a main hydraulic cylinder 1 and a table 2 on which a rotating roller 3 is installed. There is a ver- tine between the upper fixed crosshead 4 and the table. tick guides 5 and 6. On the guide 5 there is a movable traverse 7 mounted, connected by a hydraulic cylinder 8 with a crossmember 4. On the traverse 7, the tool holder 9 is movably mounted movably with the hydraulic cylinder 10 mounted on the traverse 7. On the tool holder there is a fixed cutting tool 1.1 and inductive b HDTV 12. On the guide 6, the movable yoke 13 is movably mounted, connected by a hydraulic cylinder 14 with the yoke 4. A semi-automatic welding head 15 is mounted on the yoke 13, intended for 16779

Qi c in WP 3. After the plastic deformation is completed, the cylinder of the hydraulic cylinder with the calibrating mandrel and the deformed C move progressively in the opposite direction to the stop 30, after which the rotation mechanism of the WP 3 and the welding head 15 is activated, resulting in a connection-C with the flange. After the seam has cooled down, the calibrating mandrel, the retractable stop and the welding head are returned to

.initial position. 2 hp f-ly,

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on for welding in shielding gas for. A reversible piece 17 is attached to the roller head 3 by an eccentric mechanical clamping device 16. An annular blade 18 is attached to the upper end of the roller head, and a splined guide sleeve 19 is attached to the lower end of the roller head. The roller head is fixed rigidly on the face plate. rotation by the electric motor 21 through the gearbox 22. The faceplate 20 is mounted on the table 2 of the press. The deforming rollers 23 are installed in the pillows 24 of the roller head 3. The pillows are moved inside the bed of the roller head with wedges 25. The gauge mandrel 27 is attached to the driver 26 of the main hydraulic cylinder 1. The hydraulic cylinders are supplied to the hydraulic cylinders 28 from the pump station 29, which has a distributor . On the traverse 13 mounted sliding stop 30,

The machine works as follows.

Before starting the operation of the machine, the inductor 12, the scoring tool 1 and the semi-automatic welding head 15 are mounted with the help of a hydraulic cylinder 8, 10 and 14 in the position shown in Fig. / 2. Then, the restored part 17 is installed with a mechanical eccentric clamps 16 (Fig. 1) into the ring blade 18 with a hub. After fixing the restored part, simultaneously

Each roller head rotation mechanism consisting of an electric motor 21, a speed box 22, a faceplate 20, as well as hydraulic cylinders 8 and 10. The hydraulic cylinder 8 of the yoke 7 is lowered by a certain amount, and the inductor goes inside the hub of the restored part 17. The hydraulic cylinder 10 is cutting the cutter is installed, touching the tip of the cutter of the outer diameter of the hub of the restored part 17. Cutting the flange of the restored part by the amount of cutting edge for the subsequent welding is carried out by chi cutting cutter in the cutting zone by the hydraulic cylinder 8 (Fig. 1). After cutting the flange, the cutter 11 is led out of the cutting zone by the hydraulic cylinder 8, and high frequency current is supplied to the inductor 12 from a lamp or machine generator. When the hub of the restored part is heated to the temperature of plastic deformation (about 1200 ° C), the high frequency current and the rotation of the roller head are turned off, and the hydraulic cylinders 8 and IO inductor 12 and cutter 11 are retracted to the position shown in Fig.2. After that, a calibrating mandrel 27 is inserted into the hub of the restored part 17 (Fig. 2) and when it is fed down, the hub is separated from the flange by means of a stem 26 and an annular knife 18. When moving down, the calibrating mandrel 27 enters the guide spline sleeve, this is exact installation of the splines of the hub of the restored part 17 and the calibrating mandrel 27 relative to the deforming rollers 23 (FIG. 3.). For a better approach of the calibrating mandrel 27 to the guide spline sleeve 19, their slots are patched at the points of entry (Fig. 4).

Upon further advancement of the ujji step, together with the calibrating mandrel 27 (Fig. 2), plastic hub deformation occurs through the rollers, in which the metal flows from the outer layers of the hub to the points of wear of the splines. After the plastic deformation is completed, the main hydraulic rod 1; cylinder 26 (Fig. 5) is raised to the sliding stop 30. At this, the hub is pressed into the flange and its position relative to the flange exactly meets the technical requirements

167794

m for the manufacture of parts. After installation of the hub by the hydraulic cylinder 14, the yoke 13 is lowered with the welding torch 15 to the amount of electrode 2 escaping (distance between the point of welding current supply to the wire and that is about 7-12 mm) and the hub is tacked to the flange. After tacking

The mechanism of circular rotation of the roller head, i.e. motor 21, gearbox 29, faceplate 20, at a speed equal to the average welding speed, and weld

t5 sleeves with a flange in the environment of protective gases, such as carbon dioxide. After welding and cooling the weld, the welding torch 15, together with the crosspiece 13, rises to the position shown

20 in FIG. 2, and the gauge mandrel is removed from the reconditioned part by the rod 26 when the main hydraulic of the chinder 1 is turned on to raise the rod. The recovered part 17 is removed from

25 machines after turning off eccentric clamps 16.

Compared with the prototype, the machine for repairing a stzshitsa provides for the possibility of repairing the splined holes of the hub with a flange with a wide range of sizes from 10 to 300 mm and more, as well as with wear from a small size (0.3 mm) and

g to cut slits (or make a hub or slotted sleeve of a cylindrical sleeve); allows combining the operations of cutting the flange face and heating the hub with high frequency currents, separating the hub from the flange and plastic deformation of the stud when restoring the spline profile, as well as connecting the hub to the flange by welding after restoring the splines to improve productivity, improve quality repair, saving energy and metal. The pressing force on the proposed machine is ten times smaller than 50 in the process of manufacturing or repairing parts in dies. In addition, labor costs are significantly reduced.

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Claims (3)

1. A machine for repairing a hub with a flange, containing a vertical hydraulic press with a roller head for rolling knurling slots, on a stand Formula Eteni 1. A machine for repairing a hub with a flange, containing a vertical hydraulic press with a roller head for rolling knurling slots, on a stand 513 some of which are mounted two vertical guides, about tl and h and y and th, so that, in order to increase productivity and quality p €; -installation, it is equipped with two movable cross-beams, a caliper with rezzertera-: body, inductor, welding head, three hydraulic actuators, an annular knife and an eccentric clamp of the hub, while the tool holder and the inductor are placed on the first traverse with the ability to move along it and one of the rails, the welding head is placed on a common traverse with the possibility 16779-6 a company along another guide, a roller head mounted on a faceplate can be rotated around its own axis, and an annular knife 5 and an eccentric clamp are mounted on a roller head. 2. The machine tool according to claim 1, 1 and 2, and with the fact that the crosshead of movement of the welding head is provided with a retractable stop. 3. The machine according to claim 1 is also distinguished by the fact that the roller head is equipped with a replaceable splined direction with a 5 bushing. -BUT Fig.Z FIG. Editor M.Tovtin Compiled by N. Tyutchenkova Tehred Ts. Glushchenko Proofreader M Sharoshi Order 2384/11 Circulation 975 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., d „4/5 Production and printing company, Uzhgorod, Projecto st., 4 FIG. five