SU1514545A1 - Multipurpose machine tool with automatic replacement of tools - Google Patents

Description

The invention relates to machine tools, in particular to multi-purpose machines with automatic tool change. The purpose of the invention - povpepe2

performance and reliability of the machine. On the axis 6 of the two-arm 7 of the manipulator 5, the gear wheel 19 is fixed. When the manipulator 5 is moved to the headstock 3 in the tool change position, the gear wheel 19 engages with the gear wheel 18, which is fixed to the end of the shaft 13. The shaft 13 is mounted in the body of the spindle head 3 parallel to the spindle and enters with it in the kinematic connection when unclamping the mandrel 12. Rotate the two-handed hand to change the tool is from the drive rotation of the spindle through a kinematic connection with the wheel

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The invention relates to machine tools, in particular to multi-purpose machines with automatic tool change. five

The purpose of the invention is to improve the performance and reliability of the machine in operation.

Figure 1 shows a multi-purpose machine, a general view; figure 2 - kinematic scheme of the machine with a tool changer.

The machine comprises a work table 1, a fixed column 2, mounted on the base section and provided with a HA ¹⁵ directs, which is moved vertically movable spindle head 3, spindle 4. The manipulator 5 mounted on the axis 6 dvuhzahvatnoy arm 7 serves to translational ^ 0 Tel'nykh transfer using the hydraulic cylinder 8 from the tool magazine 9 to the spindle 4 and back to the tool mandrels 10. Vertical movement parallel to the spindle axis, the two-claw arm 7 receives from the hydraulic cylinder 11 of the manipulator. Coaxially with spindle 4 is installed cylinder 12 unclamping mandrel.

to In the case of the spindle head 3 parallel to the axis of the spindle 4 an additional shaft of the manipulator arm rotation arm is mounted - the shaft 13, on which the gear wheel 14, 35 is mounted with the possibility of axial movement

meshed (with the mandrel depressed) with a gear wheel 15 rigidly mounted on the spindle 4, while the gear wheel 14 is kinematically connected with the shaft 13 by the key and simultaneously with the cylinder 12 unclamping the mandrel with a lever. The gear wheel 15 is in constant engagement with the gear wheel 16, rigidly connected with the drive shaft of the rotation of the spindle 17.

At the free end of the shaft 13, coming out of the body of the spindle head, a second gear wheel 18 is mounted, which engages (at the position of the manipulator at the spindle) with the gear wheel 19, which is mounted on the body of the manipulator and is kinematically connected with the axis 6 of the two-arm at key aid. 55

In the cases of the spindle head and the manipulator, clamps are installed that lock the gears 14 and 19, respectively, during the operation of the machine, when the manipulator is located at the tool magazine.

The machine works as follows.

On command from the CNC system after stopping the spindle head 3 in the tool change position, the hydraulic cylinder 11 moves the manipulator 5 with the two-gripping hand 7 to the right to the spindle head 3. In this case, the hand 7 captures the tool holder 10, and the gear wheel 19 installed on the manipulator axis 6 enters in engagement with the gear wheel 18 on the shaft 13 of the spindle head 3.

The unclamping of the mandrel 10 in the spindle is made by moving down the piston of the cylinder 12, which simultaneously moves down the gear 14, engaging it with the gear 15, rigidly mounted on the spindle 4 (figure 2). In this position, a kinematic connection is ensured: the drive shaft of the rotation of the spindle head 1 7 - a two-gripping hand 7.

After that, using the hydraulic cylinder 8, the two-gripping arm 7 moves down together with the tool holder 10 until the mandrel taper leaves the spindle 4. Then, from the CNC drive shaft of the spindle 17, controlled from the CNC system through a closed kinematic chain, the hand turns 180 ° spindle 4 and mandrel with a new tool is installed coaxially with the spindle. The speed of rotation of the two-handed arm is programmed in advance, depending on the weight of the tool holders ...

Hand 7 moves upward, inserting the cone of the mandrel into the spindle 4. When the piston of the cylinder 12 is moved, the mandrel 10 is held upwards, the mandrel 10 is simultaneously fixed in the spindle and the gear 14 is disengaged from the spindle. tool magazine 9. The drive 17 is then kinematically connected only with the spindle 4, and the machine begins to work according to the programmed cycle. In the future, the cycle repeats.

Claims (1)

Claim Multipurpose automatic tool changer containing five 1514545 6 column, spindle headstock, the case of which is mounted on guide columns, work table, spindle with gear drive of rotation drive, cylinder of unclamping mandrel located coaxially with spindle, tool magazine, manipulator for changing tool with two-claw arm fixed on axis in the manipulator body with drive its rotation, characterized in that, with the aim of increasing productivity and reliability in operation by reducing the number of motor-driven additional engines. gears installed in the housing on rolling bearings parallel to the machine spindle, one of the wheels being rigidly connected to the unclamping cylinder of the mandrel and mounted for axial movement along the shaft and rotating gear with a spindle rotational drive, the axis of the manipulator's two-arm arm is equipped with a gear wheel mounted to interact with the second 15 toothed wheel mounted on