SU821102A1 - Machine for friction welding - Google Patents

Description

(54) WELDING MACHINE WITH FRICTION

one

This invention relates to metal friction welding.

A known machine for friction welding with a device for precision shutdown of parts of a shaped section, containing a clamping cartridge with a drive and a working spindle, by means of which a clamping mechanism is fixed in a predetermined spatial position by releasing it in front of the fixed part to be forged and pressed to pressurize all pressure G | .

However, the use in the spindle assembly of ancillary devices for releasing the part operating at high rotational speeds complicates the design of the welding machine and reduces its operational reliability, especially under conditions of mass production of parts using their automatic loading and unloading. Therefore, in practice, such devices for angular orientation are not of any use.

A known friction welding machine comprising a housing, a headstock with a spindle and a clamping chuck and a device for angular orientation of the chuck 2.

A disadvantage of the prior art machine is that the orientation of the chuck is carried out in the process of braking the spindle over the work piece to be welded. The role of the brake in the device for the angular orientation of the cartridge is performed by a massive latch and a spring-loaded stop, the interaction of which, at large moments of inertia of the working spindle, leads to the rapid destruction of the stop and the latch.

The purpose of the invention is to increase the reliability of the design by targeting the cartridge during idling.

This goal is achieved by the fact that on the outer surface of the clamping

The cartridge 0 has a groove, and the device for the angular orientation of the cartridge is made in the form of a roller interlocking with the spindle axis mounted on the housing on the axis of a spindle that intersects

5 with relative axial movement of the spindle and the housing with the outer surface of the cartridge. In addition, the chuck is pivotally mounted relative to the spindle.

Claims (2)

0 and connected to it by the clutch. FIG. 1 shows the headstock of a friction welding machine, a slit; n FIG. 2 is a view A of FIG. 1. The device contains a component 1 of a composite form, for example a propeller shaft plug, placed in a clamping chuck 2, which is connected to a working spindle of affairs 3 by means of a friction clutch 4 and a rotation support 5 .. A groove 6 is made on the outer surface of the clamping chuck 2 6. Roller 7 mounted on an axis 8, crossing with the axis of the spindle 3 at an acute angle and mounted on the body 9 of the machine. The roller 7 has the ability to interact with the outer surface of the clamping chuck 2. A strong drive 10 of the chuck 2 is placed in spindle 3, the support 11 of which is made in quill 12. The device works as follows. At the loading position of the part 1, the roller 7 is in the groove 6 of the chuck 2, the latter being located in a strictly defined angular position. With the help of an auto operator (not shown in the drawing), the workpiece 1 is loaded, which is fixed in the chuck 2 from the power drive 10. This drive force 10 connects the spindle 3 with the friction clutch 4 and the chuck 2, after which the quill 12 is moved with a clamping chuck 2 at the welding position during which the roller 7 is released from the groove 6 and thus does not interact with the outer surface of the chuck 2. After welding, the power drive 10 releases part 1 in the chuck chuck 2 and removes the chuck from the spindle from the interaction. The quench 12, returning to its original position, makes contact between the outer surface of the chuck 2 and the roller 7 As a result of the axes 8 of the roller 7 and the spindle 3 being mutually intersecting and at an angle, the forces of the torus create a torque under the action of which the clamping the cartridge 2 and the roller 7 receive a rotation about their axes until the roller 7 enters the groove b, which corresponds to the angular position of the part 1 in the loading position. In the case where the axially movable axially clamping chuck (not shown), the relative movement of the outer surface of the cartridge and the roller 7 is provided by the movement of the axis 8 of the roller 7 together with the non-rotating clamping cartridge. Thus, the proposed device for the angular orientation of the clamping mechanism of a complex shape is characterized by the simplicity and reliability of the design scheme. An important advantage of the proposed device for angular orientation in comparison with the known ones is that it can be used in existing equipment for friction welding, regardless of whether or not the latter is equipped with automatic loading and unloading of parts. When creating fully automatic friction welding machines, the design of auto-operators is simplified, and using the proposed device in machines with manual loading and unloading of parts, the auxiliary welding time is reduced, which improves the process performance and improves working conditions. Claims 1. A friction welding machine, a housing, a headstock with a spindle and a clamping cartridge, and a device for angular orientation of the cartridge, o. This is in order to improve the reliability of the design by realizing the orientation of the cartridge during idling, the groove is filled on the outer surface of the chuck, and the device for angular orientation of the cartridge is made in the form of a roller intersecting with the axis of the spindle on the shaft relative axial movement of the spindle and the housing with the outer surface of the cartridge. 2. The machine according to claim 1, characterized by the fact that the chuck is installed to rotate relative to the spindle and is connected to it by a friction clutch. Sources of information taken into account during the examination 1. US patent 3,541,609, cl. 29-470. 3.20.11.68. 2. USSR author's certificate number 517438, cl. B 23 K 19/02, 01/27/75,