SU745649A1 - Metal-working machine tool with automatic changing of workpieces - Google Patents

Description

(54) METAL CUTTING MACHINE WITH DEVICE FOR AUTOMATIC CHANGE OF HANDLING PARTS

one

This invention relates to a machine tool industry, in particular, to devices for automatically changing workpieces in multi-operational CNC machines and automatic tool changes.

Machines with an automatic satellite changer with machined parts are known, which comprise a two-position carriage located in front of the machine and movable in a direction perpendicular to the spindle axis. The carriage housing contains the mechanism for moving satellite devices and the locking mechanism. The movement mechanism is made in the form of a slider mounted in the central part of the carriage, movable in the direction of the spindle axis and driven by a pinion gear mounted on the carriage from the side of the machine and connected on one side with a rail rigidly fixed on the slider and on the other through a gear train with a rail connected rigidly to a cylinder of a hydraulic actuator moving along a shaft fixedly fixed in the housing in a direction perpendicular to the spindle axis. The gripping mechanism is made in the form of a finger placed in the middle part

slide and interacting in the front-- .. in the position with the table with a guttnik 1.

The device provides movement

satellite tables in one direction relative to the base: from the base to the table

machine and back.

However, when using this machine in an automatic line with a multi-store, installed in front of the machine,

10, it becomes necessary to move the satellite tables from the base to the hopper and back. In this case, the slider transporting the satellite devices must make a double move: from the working machine to the base, from the base

15 to the accumulator and back, while maintaining a constant engagement of the gripping mechanism all the way through the slider.

The purpose of the invention is to reduce the size of the device and provide

20 use of the machine in the automatic line is a common for machines machine component parts due to the movement of satellite devices towards the machine table and the drive.

3

This goal is achieved due to the fact that the known device for automatic changing tables-satellites with processed parts is equipped with an additional drive gear mounted on the carriage from the side of the drive and kinematically connected with the first system of intermediate wheels, while the mechanism for capturing the satellite devices is rotary as a double unit gears that are pT-located along the entire length of the slider and respectively placed in the slider and the carriage, the first one being connected directly to the finger, and the second to the ode grip mechanism.

FIG. I shows a general view of the proposed ctaHKa type “machining center with a hopper and a device for automatic change of satellite devices, side view; in fig. 2 - the same plan view; FIG. 3 is a section A-A of FIG. 2; in fig. 4 - section BB of FIG. 3; in fig. 5 shows a section bb of FIG. 4, corresponding to the average position of the slider.

An automatic changeover device for satellites with machined parts 1 is installed between machine 2 and drive 3.

The device contains a two-position carriage 4 for satellite devices 5 moving in the direction perpendicular to the axis of the spindle 6. In the carriage body there are located the mechanism for moving the satellite devices and the gripping mechanism. The movement mechanism is made in the form of a slider 7 located in the central part of the carriage, movable in the direction of the spindle axis and driven from the hydraulic cylinder by means of gear-gear transmission. The rack and pinion gear is a rail 8 which is engaged with two drive gears 9 placed along the edges of the carriage from the side of the machine 2 and drive 3 and interconnected by a system of intermediate wheels 10. Drive gears 9 are the output link a gearbox 11 mounted in the carriage body and meshes with the gear 12 of the gearbox, which in turn meshes with the rack 13, which is rigidly connected to the cylinder 14 of the slider hydraulic drive. The cylinder moves along a fixed rod 15 rigidly fixed in the housing in a direction perpendicular to the spindle axis.

In the middle part of the slider 7 there is a mechanism for gripping the satellite device, made in the form of a finger 16, driven by a double block of gears 17 and 18, which are in engagement with the rail 19, rigidly mounted on the body of the cylinder 20 of the hydraulic drive for gripping. The cylinder moves along a fixed rod 21 attached to the device body.

The gear train 17 is a gear located on the shaft 22. Axis

745649

The shaft 22 passes through a hole in the slider 7 and the gears are spaced in the pockets of the housing, which prevents axial movement of the shaft with the gears mounted on it relative to the slide body.

The center gear is constantly engaged with the finger.

The gear unit 18 is a pinion mounted on the shaft 23. The shaft also passes into the hole of the carriage 4, and the gears are placed in the pockets of the housing, which prevents axial movement of the shaft with the gears relative to the carriage. One of the gears is constantly engaged with the rack 19,

Thus, the gear unit 17 is part of a slider, and the gear unit 18 is a carriage,

Gears blocks 17 and 18 are located

and in such quantity that on everything

slider paths (both ways

from the middle position) they were

would be in engagement with each other

The device works in the following way.

When a command is received on the change of satellite devices, pressure is applied to the corresponding cavity of the hydraulic cylinder 14, which, moving along the fixed rod 15, rotates rotation to the gear 12 of the gearbox I.

The two drive gears 9 engage with the rail 8 of the slide 7, which moves progressively towards the machine. 0 At the end of the movement of the slide, pressure is supplied to the corresponding cavity of the hydraulic cylinder 19 of the actuator grip, which, through the rail 18, rotates the double gear unit 17, which pushes the finger 16 in the appropriate direction, seizing the satellite device.

After that, the satellite is transported to drive 3, going from the machine to the device and from the latter to the drive. In this case, the slider 7 is in the rightmost Q position and is engaged with the second, additional drive gear 9 (FIG. 3).

At the end of the stroke of the slide 7, the gripping of the table-companion is released to the accumulator at iodine pressure into the corresponding hydrocyl cavity {} ndra 19 of the finger drive.

This completes the transportation of the satellite table with the workpiece from the machine to the adapter and further to the drive.

Claims (2)

Invention Formula 1, Metal-cutting machine with a device for automatic change of workpieces containing a two-position carriage, movable in the direction perpendicular to the axis of the machine spindle, housed in the carriage body of the satellite devices. made in the form of a slider mounted in the central part of the carriage with the possibility of movement in the direction of the spindle axis from the pinion gear mounted on the carriage from the machine side and connected to the slider rigidly fixed on the slider, and the gripping mechanism in the form of a finger mounted on the middle part of the slider movable in the direction perpendicular to the axis of the spindle, characterized in that, in order to reduce the size of the device and to enable the use of the machine in an automatic line with general ankov drive parts due prisposobleniysputnikov movement towards the machine table and accumulator mechanism cn-moving devices, utnikov provided with an additional drive gear mounted on the carriage from the side of the accumulator and kinematically connected with the first through a system of intermediate wheels. 2. The machine according to claim 1, characterized in that, in order to ensure permanent engagement of the fingers with the satellite device throughout the entire movement of the slide from the machine table to the accumulator, the drive of the gripping mechanism is made in the form of a double block Tester, located along the whole the length of the slider and respectively placed in the slider and carriage, the first one being connected directly to the finger, and the second to the drive of the gripping mechanism. Sources of information taken into account in the examination 1. USSR author's certificate in application no. 2469301/08, cl. 23 Q 7/14, 1977.