SU1494079A1 - Machine for slotting commutators of electrical machine - Google Patents

Abstract

The invention relates to the electrical industry and can be used in the manufacture and repair of electrical machines. The purpose of the invention is to simplify the design of the machine. The machine with a milling head is equipped with a pneumatic cylinder, which fixes the spindle from horizontal displacement when the cutter exits the collector. The mechanism of stepping and fixing the collector is made in the form of a bracket 15 with three pneumatic cylinders. The pneumatic cylinder 19 with the help of a gripper 22 mounted on a spring-loaded piston rod 21 rotates the manifold, while the angle of rotation is adjusted by the stop bolt 20, and the pneumatic cylinder 19 is spring-loaded relative to the bracket 15. The piston rod 27 of the second pneumatic cylinder 26 rotates against the gripper 22, fixing it in the slot of the collector plate, and the third pneumatic cylinder with its rod fixes the collector after it is turned. The first two pneumatic cylinders 19 and 26 are controlled from one air distributor, and air is fed to the pneumatic cylinder 19 through a throttle. A device for removing longitudinal chamfers consists of two cutters with a 45 ° bevel angle, the surfaces of the bevels are straight grooved, and a cutter is installed between these cutters to clean the slotted groove, and the entire device is located on the spindle of the milling head. The distance between the cutter for cleaning the groove and the cutter for defrosting is equal to the distance between adjacent slots of the collector. 2 hp f-ly, 5 ill.

Description

The invention relates to process equipment for the manufacture and repair of collectors of electrical machines and can be used in the electrical industry.

The purpose of the invention is to simplify the design of the machine.

FIG. 1 shows the mechanism for stepping and locking the collector; in fig. 2 shows section A-A in FIG. one;

in fig. 3 - slider with milling; in fig. 4 shows the spindle of a milling head with a cutting tool in FIG. 5 is a schematic diagram of the control of pneumatic cylinders.

The machine for discharging the collectors of electric machines contains (see FIG. 3) a milling head 1, on the spindle 2 of which a milling cutter 3 is mounted for breaking the notches. Through the spacer sleeve 4 on

spindle 2 has two cutters 5. The cutters 5 have a bevel angle of 45. At the same time, straight grooves were made on the bevels, with the help of which the chamfers are removed. Between the cutters 5 is installed. Cutter 6 for cleaning the longitudinal groove. The thickness of the spacer sleeve 4 is chosen so that the distance between the mills 6 and 3 is equal to the distance between the adjacent slots of the collector. The cutters are clamped by a nut 7. To reduce the beating of the cutters 5 on, the slider 8 holds the bearing 9 with the bearings 10. In the bearings 10, the shank of the shank 2 is centered. In the pneumatic cylinder re 11, the spindle is locked against axial displacement when the cutter leaves the collector, there is a spring 12 and a rod 1 piston The rod 13 rests on the roller 14, kinematically connected with the spindle 2. The mechanism of the stepped rotation and fixation of the collector (Fig. 1 and 2) consists of a bracket 15, to which the pneumatic cylinder 18 is hinged by means of a fork 16 and axis 17 19. An adjusting stop bolt is screwed into the lid 18. A grip 22 of the collector plate is fixed to the piston rod 21 console relative to the axis 17 of the hinge, the tooth of which fits into the raised slot of the collector. The piston 21 is spring-loaded spring 23, the pneumatic cylinder 19 is carried out reciprocating movement of the grip. Air is supplied to pneumatic cylinder 19 through fitting 24, which is spring-loaded with respect to bracket 15 by spring 25. Second pneumatic cylinder 26 rotates gripper relative to microchip hinge and contains piston 27 with spring 28. In gripper 22 bolt 29 is screwed, which after turning the manifold presses to the contact of the microswitch 30. The microswitch 30 gives (a command to move the slide 8 forward. The pneumatic cylinder 31 with its rod 32 fixes the collector after turning. The pneumatic cylinders 19 and 26 are controlled from one air aspredelitel 33. The air to the pneumatic motsilindru 19 is supplied via a throttle 34. The throttle 34 provides deceleration actuation pnevmotsilind ra pneumatic cylinder 19 relative to .26, air cylinder 31 is controlled from the diffuser 35. The pressure reducing

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The valve 36 provides constant reduced pressure for operation of the pneumatic cylinders 19, 26 and 31. The pneumatic cylinder 11 is controlled by the air distributor 37.

A machine for freezing the collectors of electrical machines operates as follows.

After the slider 8 retreats to the rearmost position, the air distributor 33 is activated and supplies compressed air to pneumatic cylinders 19 and 26. Due to throttles 34, first actuates pneumatic cylinder 26 and, overcoming the force of springs 28 and 25, presses the gripper 22 to the collector, and the tooth grip 22 is in the groove of the collector. Then the piston 21 begins to move with the gripper 22 until the piston rod 21 stops against the adjusting stop bolt 20. After that, the bolt 29 presses the contact of the microswitch 30 and the slider 8 begins to move forward. This triggers the air distributor 35 and supplies air to the pneumatic cylinder 31, the rod 32 of which fixes the manifold. The rod 32 is in the upper position only when the slide 8 is in extreme rearward position (i.e. during the turn of the collector), the rest of the time the rod 32 is pressed against the collector, preventing its spontaneous rotation. When the cutter enters the manifold, the air distributor 37 releases air from the pneumatic cylinder 11, and the spindle 2 is able to move horizontally. The displacement of the spindle 2 is carried out by means of a milling cutter 6, which goes along the extended groove and displaces the spindle 2 to the right or left, respectively, with the direction of the groove. After the milling cutter 3 progresses the groove, i.e. the slider 8 will come to its foremost position, the air distributor 33 is actuated and the air leaves the pneumatic cylinder 19 and 26. At the same time, by means of the spring 25, the pneumatic cylinder 19 rises to the upper position together with the gripper 22 and the piston rod 27. The piston rod 27 rises due to the spring 28. For ease of exit from the groove, the tooth is gripped and the 22 has a bevel. Under the action of the spring 23, the piston 21 and the gripper 22 retract to their original position. Together with the air distributor 33 triggered3 /

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Editor M. Andrushenko

Compiled by V. Voskoboinikov

Tehred M. Didyk Proofreader E. Lonchakova

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Claims (3)

Claim 1. Machine for defrosting the collectors of electrical machines, containing a frame on which a slider is mounted, equipped with a milling head with a spindle for installing the cutting tool, and a step-by-step mechanism for fixing the groove of the collector, characterized in that, in order to simplify the design, it contains an axial cross clamp the spindle room, equipped with a drive, the mechanism of step rotation and fixation of the collector is made in the form 5 of the bracket, on which the capture of the collector plate is placed, mounted cantilever on the hinge of the bracket, equipped with rotation drives around the hinge and reciprocating movement along the console, and a collector groove lock provided with a reciprocating drive. 2. The machine according to claim 1, about l and h a- 15 with the fact that the capture pneumatic cylinders are equipped with one pneumatic distributor, while at the entrance of the reciprocating pneumatic capture cylinder a throttle 20 sel. 3. Machine pop. ^ characterized in that the actuators are made in the form of single-acting pneumatic cylinders with spring-loaded 25 cylinder bodies with pistons.