A brief discussion on the strict requirements for honing gear processing of honing machines
The honing machine has strict requirements for honing gear processing.
When honing, the honing head of the honing machine rotates and reciprocates or the honing head rotates and the workpiece reciprocates, resulting in a cross-helical cutting trajectory. Between the two strokes, the honing tooth head is staggered by a corresponding angle in the circumferential direction relative to the workpiece. This movement prevents the movement trajectory of each abrasive grain on the honing tooth head on the hole wall from being repeated. In addition, with each revolution of the honing gear head, there is a certain overlap length in the axial direction between the whetstone and the cutting trajectory of the previous revolution, making the connection of the front and rear grinding trajectories smooth and even.
Currently, used inHoning machineThe honing tooth head is mainly made on the honing tooth head by the inlay process. After finishing the surface of the workpiece, the machined hole diameter will become 5-500 mm. For different larger cylindrical holes, valve holes, cylinder holes, box holes, connecting rod holes, etc., the ratio of hole diameter and hole depth can be about 10, or larger, under relative conditions. Next, honing teeth can also process flat surfaces, cylindrical surfaces, spherical surfaces, or tooth surfaces, etc. For example, the surface of cylindrical honing teeth is mostly rough and uneven, and can reach less than Ra0.04 micron during fine honing. The processing accuracy is about IT7-4, and the surface quality of some flat honing teeth may be slightly worse.
When honing, the honing head of the honing machine rotates and reciprocates or the honing head rotates and the workpiece reciprocates, resulting in a cross-helical cutting trajectory. Between the two strokes, the honing tooth head is staggered by a corresponding angle in the circumferential direction relative to the workpiece. This movement prevents the movement trajectory of each abrasive grain on the honing tooth head on the hole wall from being repeated. In addition, with each revolution of the honing gear head, there is a certain overlap length in the axial direction between the whetstone and the cutting trajectory of the previous revolution, making the connection of the front and rear grinding trajectories smooth and even.
Currently, used inHoning machineThe honing tooth head is mainly made on the honing tooth head by the inlay process. After finishing the surface of the workpiece, the machined hole diameter will become 5-500 mm. For different larger cylindrical holes, valve holes, cylinder holes, box holes, connecting rod holes, etc., the ratio of hole diameter and hole depth can be about 10, or larger, under relative conditions. Next, honing teeth can also process flat surfaces, cylindrical surfaces, spherical surfaces, or tooth surfaces, etc. For example, the surface of cylindrical honing teeth is mostly rough and uneven, and can reach less than Ra0.04 micron during fine honing. The processing accuracy is about IT7-4, and the surface quality of some flat honing teeth may be slightly worse.