| 摘要 |
A chuck-related arrangement having a main portion and chuck jaw portions coordinated with the main portion with associated clamping arrangements, wherein one surface of the main portion is provided with a plurality of tracks adapted to displaceably carry chuck jaw portions. Each one of, and/or a chosen number of, clamping arrangements, are individually to be secured to its element solidly secured to its basic chuck jaw portion exposing a rotational cooperation with an external chuck jaw portion over a central axis of rotation. Two or more of the external chuck jaw portions and their peripheral surfaces are formed as one or more recesses in order to cooperate opposed recesses to form clamping surfaces for a work piece and/or formed as one or more, the recesses intermediately oriented, radially extending elevations, causing cooperative elevations after a rotation to form direct clamping surfaces towards the work piece. |
| 主权项 |
1. A chuck-related arrangement (“a”) having a main portion (1a, 1e) and chuck jaw portions coordinated to said main portion (1a) with associated clamping arrangements (3, 3′, 3″), wherein one planar or flat surface (1e) of said main portion is provided with a plurality of tracks (1f, 1g, 1h), two or more, adapted to displaceably carry said chuck jaw portions (40), which by means (10a) allotted in the main portion (1a, 1e) are displaceably disposed in a direction towards and away from each other for having said chuck jaw portions in an assembled position clamp a workpiece (“A”) intended for processing and in an opposing position letting these chuck jaw portions release said workpiece (“A”) from its tightening position for removing the workpiece wherein each one of or a chosen number of selected chuck jaw related clamping arrangements (3, 3′, 3″) is individually formed as two parts, a first part, as a base chuck jaw portion (40, 40′, 40″), with a thereto related, around a central axis of rotation ((30) (10′)) rotatably oriented axis for tightening and/or releasing the work piece (“A”), a second part, as an external or outer chuck jaw portion (30, 30′, 30″), and with said two parts interrelated by a blocking or locking unit (4, 104″), characterized in that said first part (40) and said second part (30) are coordinated by preforming a radially directed displacement, that said first and second parts (40, 30) are interrelated via a dovetail shaped track (91) and a dovetail shaped cylindrical portion (30h), that these parts (40, 30) are oriented adjacent to each other by exposing said radially oriented displacement along a plane or flat surface oriented between planar or flat surfaces, facing each other and related to said first and second parts (40, 30), that said blocking and locking unit (4, 104″) is disposed between said first and second parts and in its operative position blocks the second part from rotating around an axis of rotation in relation to said first part and in its inoperative position permits the second part to rotate freely around said axis of rotation, and that a block (92) is introduced into said track (91) to prevent said second part from carrying out a radial displacement motion from its axis of rotation. |
