Turning tools

Abstract

To provide a lathe tool that has a distance sensor and that can increase accuracy of dimension measurement.SOLUTION: A lathe tool includes: a tool body 10 that is extended along a tool shaft J and that has a pedestal 18 provided at a tip 10a; a cutting insert 20 that is detachably attached to the pedestal; and a distance sensor that is attached to the tool body. The distance sensor, which is an eddy current sensor, comprises a first distance sensor 31 that sets the radial outside of the tool shaft to be directed in a measurement direction, and a second distance sensor 32 that sets the axial tip side of the tool shaft to be directed in a measurement direction.SELECTED DRAWING: Figure 1

Claims

1. A tool body extending along the tool axis and having a base at its tip, A cutting insert that is detachably attached to the base, The tool body is equipped with a distance sensor, The distance sensor is an eddy current sensor, The tool body includes: The housing hole in which the distance sensor is housed, A screw hole extending from the outer circumferential surface to the aforementioned housing hole is provided, The distance sensor is pressed against the inner surface of the housing hole by a screw inserted into the screw hole. Turning tools.

2. A tool body extending along the tool axis and having a base at its tip, A cutting insert that is detachably attached to the base, The tool body is equipped with a distance sensor, The distance sensor is an eddy current sensor, It has a third bracket that is fixed to the tool body, The third bracket has, The housing hole in which the distance sensor is housed, A screw hole extending from the outer circumferential surface to the aforementioned housing hole is provided, The distance sensor is pressed against the inner surface of the housing hole by a screw inserted into the screw hole. Turning tools.

3. As the distance sensor, A first distance sensor whose measurement direction is the radially outer side of the tool shaft, The system includes a second distance sensor whose measurement direction is the axial tip side of the tool shaft, The third bracket has, The aforementioned housing hole includes a first housing hole in which the first distance sensor is housed, The aforementioned housing hole includes a second housing hole in which the second distance sensor is housed, The screw hole includes a first screw hole extending from the outer circumferential surface to the first housing hole, The screw hole includes a second screw hole extending from the outer circumferential surface to the second housing hole, The first distance sensor is pressed against the inner surface of the first housing hole by a screw inserted into the first screw hole, The second distance sensor is pressed against the inner surface of the second housing hole by a screw inserted into the second screw hole. The turning tool according to claim 2.

4. The third bracket is plate-shaped, The screw hole extends along the plate surface of the third bracket, The turning tool according to claim 2 or 3.

5. The opening direction of the screw hole is different from the opening direction of the housing hole. A turning tool according to any one of claims 2 to 4.

6. The tool body has a support surface facing the axial end and to which the third bracket is fastened, The third bracket has an opposing surface that faces and contacts the support surface, The opposing surface is provided with a recess that communicates with the housing hole. A turning tool according to any one of claims 2 to 5.

7. A tool body extending along the tool axis and having a base at its tip, A cutting insert that is detachably attached to the base, A distance sensor attached to the tool body, A first bracket and, The distance sensor is an eddy current sensor whose measurement direction is radially outward from the tool shaft. The aforementioned distance sensor is A cylindrical sensor head with its tip facing radially outward, The sensor head has a cable extending from its base end, The tool body includes: The first retaining surface facing the tip side of the tool body, A communication hole opening to the first retaining surface is provided, The first bracket is fixed to the first retaining surface, The sensor head is held between the first holding surface and the first bracket, The cable is passed through the communication hole. Turning tools.

8. The tool body is further equipped with an imaging device for taking images, The imaging device photographs the machined surface processed by the cutting edge of the cutting insert, or at least one of the cutting edges. A turning tool according to any one of claims 1 to 7.

9. The tool body has a second bracket that is fixed to the second holding surface, The imaging device is held between the second holding surface and the second bracket. The turning tool according to claim 8.

10. The system includes a communication unit that transmits measurement data measured by the distance sensor to an external source. A turning tool according to any one of claims 1 to 9.

Images