SU1263454A2 - Gear-shaping machine - Google Patents

Abstract

TOOTH MACHINE on author. St. No. 778961, characterized in that, in order to increase the productivity and quality of processing, a second summing mechanism was introduced into the circular feed chain, with one input of the summing mechanism being sequentially connected to the output of the first summing mechanism through a tuning guitar, the second input is connected to the drive , and the output - with a chain of rolling. 5 4 I / a. 32 35 -

Description

The invention relates to devices for the manufacture of cylindrical gears using the slotting method.

The purpose of the invention is to increase productivity by making it possible to increase the rolling speed at a working stroke in wide ranges and to improve the quality of processing by eliminating mashing, and consequently, increasing the durability of the chisel.

FIG. Figure 1 shows the kinematic scheme of a gear shaping machine; in fig. 2 is a schematic of a gear spacing method; in fig. 3 is a diagram of the dependence of the circular feed on the movement of the die according to the scheme of the method.

The electric motor 1 by means of a kinematic pair 2, a setting body 3, a pair 4 is connected with a drive shaft 5 carrying a mechanism 6, for example a linkage, which converts the rotational movement of the shaft 5 into a reciprocating movement of the sleeve 7, in which the ram 8 dolb is mounted for rotation ka 9.

The kinematic run-on chain containing the worm gear 10, the pairs 11 and 12, the adjustment body 13, the pair 14 and the worm gear 15, the saddle 8 is connected to the separating table 16 on which the workpiece 17 is fixed.

The circular feed circuit, the connecting shaft 5 with the pedal 8, contains a pair 18 connected in series, an input 19 of the first summing mechanism 20, for example a conical or cylindrical differential, an output 21 of the mechanism 20, a tuning element 22, for example a guitar of interchangeable gears mechanism 24, input 25 of which is connected via pair 26 to motor 27, and output 28 via pair 29, coupling 30, pairs 12 and II, the worm gear 10 to the secondary 8. 8. An additional kinematic chain is parallel to the chain of circular feeds, containing a cam mechanism 31 which converts a constant rotational movement into a variable translational, rack and pinion transmission 32, which converts a variable translational movement into variable rotational, connected to the input 34 of the summing mechanism 20 through a pair of 33. A spring 35 is provided for the force closure of the cam 31 and the pinion transmission 32.

A kinematic cutting chain containing successively connected elements 18-24, 28, 29, a pair of 36, a coupling 37, a setting member 38, a pair of 39 and a plunging cam 40, a shaft 5 is connected to a dividing table 16.

In order to retract the caliper 41 of the motor 8 at idle of the gouge 9, a non-tunable kinematic chain is provided, made in the form of pairs 42 and 43 and a cam 44 with a power spring 45.

The adjustment body 3 serves to adjust the cutting speed determined by the number of double strokes of the force 8 per minute (movement P). Authority 13 setting serves

for tuning the run-in chain (movement 8283). The setting body 22 serves to adjust the speed of the working circular feed, which is understood as the value S (FIG. 2) of the accelerated working turn of the bit 9 as it moves over the workpiece 17 between

dots quince (movement 82). Adjustment body 38 serves to adjust the rate of penetration, defined as the amount of movement of the table 16 in one double stroke of the slot 9 (movement P4).

The machine works as follows. The workpiece 17 is fixed on the table 16, after which the setting bodies set the necessary speeds of movement Pb Vd. On, P4. When the motor 1 is turned on, the shaft 5 starts to rotate at working speed, each turn of which by mechanism 6 is converted into motion P of the sleeve 7 of the motor assembly 8 with a dollet 9.

The rotation of the shaft 5 is simultaneously transmitted through the pair 18 to the inlet 19, and through the elements 42, 43, 31 - 33 to the inlet 34

the first summing mechanism 20. The cam profile 31, the gear ratios of the gear 32 and the pairs 18, 19 and 33, 34 are selected so that as a result of the algebraic summation of the constant movement entering input 19 and the alternating movement entering input 34 of mechanism 20, from the output 21, the movement enters through the setting body 22 to the input 23 of the summing mechanism 24 only during the movement of the slot 9 between points a and b, while moving the slot 9 between the points of suspension, the circuit feed circuit part 21-23 will not rotate.

B

The movement arriving at the input 23 is summed with the constant movement coming from the engine 27 to the input 25. The movement resulting from the algebraic addition of these equally directed movements goes to the output 28 and further through the elements 29, 30, 11 and 10 of the circuit circular innings are communicated to the school 8 (movement WD), and through elements 13-15 of the run-in chain - to table 16 (movement B). The complex movement of rolling 6283 during one double stroke of the chisel 9 will be variable, and moreover, when the chisel to 9 na0 walks over the workpiece 17, and slowed down on the rest of the movement path of the chamfer 9 (movement P). The speed of the slow motion of the rolling, which is necessary only for tensioning the kinematic chain of rolling, is constant, its value is set only

5 of the selected engine speed 27 and gear ratio of pairs 25, 26 and 28, 29. The speed of the accelerated rolling motion, which determines the value of S for the working circular

filing, set by body 22 settings.

From the shaft 5, through the elements 18-24, 28, 29, 36-40 of the embedment chain, table 16 is driven into the incision movement P4. According to the spline technology, the embedding process is carried out with or without running in. When clutches 30 and 37 are turned on, a run-in with rolling is performed on the machine, and when clutch 30 is turned off and clutch 37 is turned on, it is done without running. After embedding the hammer 9 by the required amount, the clutch 37 is disconnected and the movement of the plunging P4 stops.

The caliper 41 during the reverse course of the bit 9 through the elements 42-44, the movement of the PB removal is reported. When the cutting of the wheel 17 is completed, the caliper 41 is retracted and the machine is turned off.

As a result of the communication of the indicated movements to the mobile organs of the machine, the machining process of the gear wheel is not accompanied by rubbing the teeth of the blade with a minimum of its removal, the quality is improved.

gears, increased tool life, increased machine productivity.

FIG. 2

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Claims (1)

DENTAL MACHINE by ed. St. No. 778961, characterized in that, in order to increase productivity and processing quality, a second summing mechanism with a drive is introduced into the circular feed chain, while one input of the summing mechanism through the tuning guitar is connected in series with the output of the first summing mechanism, the second input is connected to the drive, and the output is with a run-in chain. Figure 1 SU,. „1263454> NO