CZ32849U1 - Spindle manipulator - Google Patents

Description

Technical field

The technical solution relates to a spindle manipulator enabling a quick change of the workpiece position in a vice or a fixture.

BACKGROUND OF THE INVENTION

When machining a workpiece on a CNC machine, the workpiece is clamped in a vice or fixture. If machining parts of the workpiece that form the clamping surface are needed, the workpiece must be loosened, rotated, clamped again and the machining completed in the next operation. To do this, the machine must be stopped, the workpiece must be rotated manually or automatically by a manipulator or a robot outside the machine's working area, this is time consuming.

The essence of the technical solution

The technical solution of the spindle manipulator enables simplification and acceleration of the operation of changing the workpiece position, turning the workpiece and placing it in a vice or clamping device without having to remove it from the machine working space. Its essence is that in the manipulator body, there is a single-acting cylinder with a piston, a piston rod and a compression spring. The piston rods also form the clamping jaw of the manipulator. The single-acting cylinder has a coolant supply which, by acting on the underside of the piston, overcomes the compression force of the spring and thereby releases the clamping jaw of the manipulator. When the coolant pressure is released, the spring extends the piston with the piston rod and grips the workpiece firmly.

The technical solution utilizes features of CNC machine tools that have an automatic tool change system and an internal tool cooling system. It uses the movement of the machine spindle to change the position of the workpiece, axially remove the workpiece from the vice, rotate it freely around the axis, and reinsert it into the vice. A coolant distributed by the machine spindle is used to release the workpiece in the spindle manipulator. The workpiece is clamped by means of a spring acting on the piston rod - clamping face.

The operating cycle is such that if the workpiece position is to be changed, for example by turning it in a vice or a fixture, the work table moves to the tool change position. The spindle manipulator is stored in the tool magazine. The tool change mechanism removes the spindle manipulator from the tool magazine and clamps it into the machine spindle. The piston rod - clamping jaw is released and the spindle manipulator moves into the gripping position by means of air pressure or cutting fluid, common media for internal tool cooling during machining. When the medium pressure is released, the workpiece is clamped by the spring pressure. The machine spindle moves the workpiece spindle manipulator to a safe distance and rotates the workpiece by rotating it. Rotation can be performed between 0 ° and 360 °. The machine spindle moves to the working position and the machine clamps the workpiece in a vice or fixture. Subsequently, the piston rod-clamping jaw is released by the medium pressure and the spindle manipulator is withdrawn from the working position and stored in the tool magazine via the tool change mechanism.

The spindle manipulator enables quick change of position of the workpiece in a vice or clamping device and thus machine all sides of the workpiece, without the need to manipulate the workpiece outside the machine working area.

- 1 GB 32849 U1

Clarification of drawings

An exemplary embodiment of a spindle manipulator is shown in the attached drawing, where:

Giant. 1st view

Giant. 2. is section A-A, longitudinal section

Giant. 3 is a cross-sectional view of section B-B

Example of technical solution implementation

The spindle manipulator consists of a manipulator body 5, a single-acting cylinder 1, a spring 3, a piston 2, a piston rod which at the same time form a clamping jaw 4, a media supply 8 and workpiece positioning and guiding elements 9. Other positions shown in the drawing the control medium 7 and the workpiece 10 are not part of the spindle manipulator, nor are they entitled to protect this utility model. Position 10 shows the workpiece which is clamped by the piston rod-clamping jaw in the manipulator body. Positions 6 and 7 show a tool holder for clamping tools with internal cooling, which is supplied by a specialized tool equipment manufacturer.

Spindle manipulator after clamping in the machine spindle by means of coolant pressure acting on piston 2 in single acting cylinder 1. releases piston rod - clamping jaw 4. Spindle manipulator moves into grip position and after releasing coolant pressure spring 3 acting on piston 2 on piston rod - clamping jaw 4 grips the workpiece. Subsequently, by means of a machining spindle of the machine, the workpiece is ejected from the vice or the fixture by turning it to the selected position and returning the spindle manipulator to the gripping position. After clamping the workpiece into the vice or the fixture, the piston rod 4 is released by means of the coolant pressure acting on the piston 2 in the single-acting cylinder 1 and the spindle manipulator is transferred and stored in the tool magazine via the machine spindle.

Industrial applicability

The spindle manipulator is designed for use in CNC machine tools to automatically rotate a workpiece clamped in a vice or a fixture without having to remove it from the machine workspace.

PROTECTION REQUIREMENTS

Claims (2)

Spindle manipulator, characterized in that in the manipulator body (5) there is a single-acting cylinder (1) with a coolant supply (8), a piston (2), a piston rod-clamping jaw (4) and a compression spring (3). Device according to claim 1, characterized in that it uses the force of the compression spring (3) to clamp the workpiece and to release the pressure of the cooling medium of the machine tool supplied by the cooling medium (8) to the single-acting cylinder (1).