SU1278130A1 - Work table of gear-hobbing machine - Google Patents

Abstract

The invention relates to hobbing machines with progressive movement of the spindle of the product along its axis. The purpose of the invention is to simplify the design of the spindle and feed furnace. This is achieved due to the fact that the lower end of the psindel is equipped with a return spring 9 and with its end interacts with a hub fixed from rotation mounted on the sposome mandrel with the spindle and bearing fingers 15, which interact with the inclined grooves 16 of the yoke 19 rigidly connected with a sleeve 20 mounted on a mandrel without the possibility of axial movement and coaxially with the hub, and the sleeve is connected with a feed drive by means of gears. 3 il.

Description

CTO.I,

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The invention relates to meta., And machining, in particular, to hobbing machines operating with the rolling method with the translational movement of the tool piece along its axis.

The purpose of the invention is to simplify the design of the spindle of the product and the device of its feed chain.

Figure 1 shows the proposed appearance; PA figure 2 - view A PA fig FIG. 3 - section B - B in figure 1.

In the guides 1 and 2 of the table body 3, there is a spindle of 4 editions, on the faces 5 of which the worm wheel 6 of the separating pair of the table is installed with axial interposition. interacting with the worm 7. The wheel 6 is fixed in axial position relative to the table body by unors 8. The lower end of the Nsindel is equipped with a spring 9 and interacts through rolling bodies 10 with the hub 15 of the sleeve 11, which is mounted on the mandrel 12 coaxially with the spindle, fixed screw 13 from rotation of the mandrel 14 and carries fingers (at least two) 15, interacting with inclined (or curved Й1) 1 mi in order to change the size of the node during the cutting process of the shaft 16 of the holder 17 and 18) 19, which (which ) Is rigidly coupled to a sleeve 20 mounted on the mandrel 12 without the possibility of axial displacement (e.g., fixed retaining rings 21 and 22) and coaxially with the hub. On the sleeve 20, a wheel 23 is rigidly fitted, which is associated with the value of the feed. The drive may be a reversible hydraulic motor with an adjustable rotational speed, or the chain of Tsodach may consist of an electric motor 24, a guitar 25 innings and a gear wheel 26.

CTO; I works as follows.

The rotation of the spindle; 1 is provided by

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tseg1i de.leni by dividing a pair (the worm to 7 and x6thsho 6) and the shlitsevy connection 5. Rotation of the electric motor 24 through the guitar 25 innings and gears 26 and 23 provides rotation of the sleeve 20 with the yoke 19. Rotation of the yoke 19 (Wed) by engaging the grooves 16 with the fingers 15, the hub is reversed verx, which, respectively, provides movement (working feed) to the spindle 4 parts in the frame 1 and 2 of the table body 3. When reversing the electric motor; 1/24 stunitsya changes accordingly, from the bottom to the bottom. Shpinde.ch 4 under the influence of the force of the spring 9 also interleaves down, i.e., to its original position.

Formula from gain

A hobbing machine with a chain of feeds and a mechanism for returning to post-movement movement of the food product, characterized in that, in order to reduce metal consumption by separating the chain of feeds from the back-restoring mechanism, the supply spindle is located with a mandrel fixed against rotation by a mandrel placed on the mandrel by a sleeve with a hub, on the inner surface of which there are holes around the circumference of which are located between

the end of the hub and the bottom HORZOM TsPPINDe, 1I

rolling bodies and a spring installed with the possibility of interaction with the lower end of the spindle through the rolling bodies, while mechapism of the reciprocating movement consists of a sleeve mounted on an insert with the possibility of turning relative to the latter and rigidly connected to the sleeve of the holder with the fingers fixed to the screw, 1ke with the possibility of non-placement in the grooves, which are in a cage.

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VNIIPI USSR State Committee

Inventions and discoveries

113035, Moscow, F - 35, Raushsk nab. 4./5

Branch PPP "Patent, Uzhgorod, st. Design. four

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Claims (1)

Claim A table of a gear hobbing machine, in the case of which the feed chain and the 2Q bottom gear of the reciprocating spindle of the product are located, characterized in that, in order to reduce the metal consumption by separating the feed chain from the mechanism of the reciprocating mechanism of the spindle, the table is equipped with a mandrel located axially with the spindle and fixed from rotation, a sleeve with a hub located on the mandrel, on the inner surface of which holes are arranged concentrically around the circumference, located between the end face of the hub and the lower end of the spindle 30 by the rolling bodies and a spring mounted to interact with the lower end of the spindle through the rolling bodies, the reciprocating movement mechanism consists of a sleeve mounted on a mandrel with the possibility of rotation ³⁵ relative to the last and rigidly connected to the sleeve of the ferrule with fingers, fixed in the sleeve with the ability to move along the grooves made in the cage. B - 5 VNIIIPI of the USSR State Committee for Inventions and Discoveries 113035, Moscow, Zh-35, Raushskaya nab., D. 4/5 Branch of the PPP "Patent", Uzhhorod, st. Design. 4