SU1728542A1 - Hydraulic drive of machine vibration feed - Google Patents

Abstract

This invention relates to a hydraulic drive and can be used in various machines. The purpose of the invention is to expand the functionality by providing various cycles and processing modes - by introducing a vibrating cylinder 13 associated with the workpiece. The tool feed is controlled by the flow control 5, the frequency of the part vibration is controlled by the flow control 20, and its amplitude by the flow control 21.

Description

The invention relates to hydraulic actuators can be used in various machines.

The purpose of the invention is to expand the functionality by providing various cycles and modes of operation.

The drawing shows the principle hydraulic circuit of the drive.

The hydraulic vibration of the machine contains a power source 1, a feed cylinder 2 with a piston 3 and a rod 4 cavities, a flow regulator 5 with a check valve, a valve and a shut-off element 6 parallel to it installed in the hydraulic line 7 of the rod cavity 4, a pressure relay 8 connected to the hydraulic line 9 of the piston cavity 3, a reversible two-position valve 10 connecting the cavities 3, 4 of the cylinder 2 with the power source 1 and drain 11 equipped with a retaining valve 12, and a supply irregularity system including a cylinder 13 with a piston 14 and a rod 15 cavity The irregularity mechanism, made in the form of a pulsator 16, the hydraulic motor 17 driving it, the input of which is connected by hydroline 18 with the power source 1, and the output with the input of the pulsator 16 and drain 11 controlled by the pressure in the piston cavity 3 of the feed cylinder 2, . including a valve 19 and a regulator 20 of the flow input to the hydraulic motor 17, connected in series to the input hydroline 18 of the hydraulic motor 17, the regulator 21 with a check valve output from the pulsator 16 flow, output connected to the piston cavity 14 of the vibrating cylinder 13, three-way reversing distributor 22, reported source 1 power supply: with the rod end 15 of the vibrating cylinder 13, and the accumulator 23 connected to it. In addition, the hydraulic actuator is equipped with limit switches 24. located along the flow cylinder 2.

Hydraulic vibratory works as follows;

with

WITH

vj GO SB

ate

Ј K

A command is issued to turn on the electromagnet of the on-off distributor 10. The working fluid enters the piston cavity 3 of the hydraulic cylinder 2 and is drained from the rod cavity 4 through the locking member 6. A rapid movement of the tool to the treatment area occurs. Drainage is carried out through a retaining valve 12, which prevents air from entering the rod cavity 4 of the hydraulic cylinder 2. After reaching the working area with a tool, a command is given to turn on the electromagnet of the locking member 6. which closes the hydraulic line 7, and the working fluid is drained from the rod cavity 4 of the hydraulic cylinder 2 through the flow controller 5. The tool travels at a working speed set by the flow controller 5.

At the same time, the working fluid from the hydroline 9 under pressure enters the control line of the valve 19, which connects the input of the hydraulic motor 17 through the flow controller 20 to the power source. The hydraulic motor 17 drives the pulsator 16, in conjunction with the oscillatory movements of the vibratory cylinder 13 connected to the workpiece. Part processing occurs. The frequency of oscillation of the part is determined by the frequency of rotation of the motor 17 and is adjusted by the flow controller 20. The amplitude of oscillation of the component is adjusted by the regulator of the flow 21.

The battery 23 drives the vibrating cylinder 13 to return the part to its original position.

At the end of the processing of the part by the limit switch 24, a command is issued to turn off the electromagnets of the on-off distributor 10 and the locking organ b. The working fluid enters the rod end 4 of the hydraulic cylinder 2 and is drained from the piston 3. The tool returns to its original position. At the same time, the control line of the valve 19 is connected to the drain 11. The valve 19 blocks the access of the working fluid from the power source 1 to the hydraulic motor 17. The pulsator 16 stops working. The piston of the cylinder 13 moves to the lower position and the vibration stops. Install a new part or other part position.

In the event of an emergency load on the tool during machining the part in the hydroline 9, the pressure increases sharply, which fixes the pressure switch 8, which gives the command to turn off the electromagnet of the on-off distributor 10 connecting the piston cavity 3 of the hydraulic cylinder 2 to the drain 11, and the rod valve through the check valve flow controller 5 - with power supply 1. Thus, hydraulic cylinder 2 takes the tool out of the machining zone.

The cycle is repeated.

Claims (2)

1. A hydraulic drive of the machine’s vibratory feed, containing a power source, a feed cylinder with a piston and rod cavity, a first reversing valve that connects them to a power source or drain, a feed control body connected by an input to the rod cavity, and a system for ensuring supply irregularity communicating with each other the first flow regulator and irregularity of the hydromotor, causing a non-uniformity mechanism with a valve connecting the hydraulic motor to a power source, characterized in that, in order to expand the functional capabilities by providing various cycles and modes of operation, the hydraulic actuator is provided with a shut-off element installed parallel to the feed control body, a pressure switch connected to the piston cavity of the cylinder, and a retaining valve on the drain, the supply irregularity system is equipped with a vibrating cylinder with a piston and rod cavity, the second reversible the three-position distributor communicating the power source with the rod cavity of the cylinder, the battery connected to it, and the second flow controller installed between the hydraulic motor and the closing valve, the irregularity mechanism is made in the form of a pulsator, the input of which is connected to the output of the motor and drain, and the output - with the entrance to the first flow controller, made with a check valve and its output communicated with the piston cavity of the cylinder, the flow control body is made in the form of a flow regulator with a check valve / the first valve is a two-position valve, and the valve is hydraulically controlled from the piston cavity of the feed cylinder, while the outlet of the feed control body is connected to the hydraulic line of the rod end of the feed cylinder. 2. The hydraulic actuator according to claim 1, about tl and h and is so that the pulsator is made in the form of a two-lane vane pump with two movable discs. h No