US Patent: 2,575,823
|
| Machine Tool Support Assembly
|
|
Patentee:
|
|
| Maxwell Ingraham Mathewson (exact or similar names) - Providence, Providence County, RI |
|
|
Patent Dates:
|
| Applied: |
Dec. 30, 1948 |
| Granted: |
Nov. 20, 1951 |
|
Patent Pictures:
[
1 | 2 | 3
]
|
|
|
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Joel Havens
Vintage Machinery entry for Brown & Sharpe Mfg. Co.
|
|
Description: |
| Abstract:
The invention is herein disclosed as embodied in a universal grinding machine of which the principal parts include a base, a longitudinally movable work table, and a grinding wheel spindle support which is mounted for both transverse movement with respect to the work support and for rotational adjustment about vertical axes. The grinding wheel spindle supporting assembly includes specifically a grinding wheel spindle support on which are mounted a rotary grinding wheel spindle and its driving motor, a wheel slide on which the wheel support is rotatably adjust- able, and a swivel support for the wheel slide carried on the base. Machines of this general description as heretofore constructed have been provided with adjusting means to permit a limited forward and back adjustment of the wheel support on the wheel slide, which has been found to be of advantage to increase the effective range of forward and back movement of the grinding wheel without so far extending the movement of the wheel slide as to unbalance the grinding wheel support assembly. It is a principal abject of the present invention to provide in a machine of this general description an improved means for effecting an adjustment in the position of the wheel support on the wheel slide, which adjustment may be made with a minimum of labor, which substantially increases the range of possible adjustment of position of the wheel support, and which further assures that the wheel support assembly will provide a support of maximum strength for each adjusted position of the wheel support. In carrying out the invention, a wheel support platen or turntable is mounted to turn about a vertical axis on the wheel slide and in turn provides a swivel support for the wheel support on which the wheel support is rotatably adjusted about a vertical axis which is eccentric to the rotational axis of the wheel support platen on the wheel slide. With this construction and arrangement of the wheel spindle supporting assembly, it will be readily understood that rotational adjustment of the platen about its axis on the wheel slide will have the effect of adjusting the position of the grinding wheel with relation to the wheel slide between extreme forward and rearward positions, and additionally of adjusting the position of the grinding wheel with relation to the wheel slide between two extreme positions laterally in which the grinding wheel spindle is so disposed as to increase the range of movement of the longitudinally moving work support either in one or the other direction.
Claim:
In a grinding machine having a rotary, grinding wheel spindle, a grinding wheel supporting-assembly which comprises a grinding wheel support, a wheel slide on which the grinding wheel support is carried, and a platen interposed between the grinding wheel support and the wheel slide having swivel connections eccentric to one another including cooperating bearing surfaces on the platen and on each of the grinding wheel support and the wheel slide whereby rotational adjustment of the platen is , effective to position the grinding wheel support including the swivel connection therewith with relation to the wheel slide, and a clamping device connected between the grinding wheel support and the w heel slide and acting along the swivel axis of the grinding wheel support with the platen for clamping the grinding wheel support, platen, and wheel slide rigidly together. |
|
){kind=link}
){kind=link}
){kind=link}