Work holders – Plural holders to hold workpieces relative to each other – Workpieces normal to each other
Patent
1990-06-29
1992-12-22
Watson, Robert C.
Work holders
Plural holders to hold workpieces relative to each other
Workpieces normal to each other
269 88, 269261, 269268, 269283, 269902, 269253, B23Q 104
Patent
active
051728958
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a clamping device comprising a first and a second clamping yoke adjustable relative to each other in a plane of motion, with the first clamping yoke carrying two main jaws each having a first angle clamping surface arranged at an angle of .alpha..sub.1 <180 degrees relative to the other first angle clamping surface and perpendicularly to the plane of motion so the first angle clamping surfaces form a first prismatic workpiece receiving means open towards the main jaw of the second clamping yoke, and further comprising a spindle extending parallel to the plane of motion for adjustment of the clamping yokes relative to each other.
Such clamping devices are known as so-called angle clamps from, for example, German patent 3 244 022. The disadvantage of these angle clamps is to be seen in that these are only suitable for clamping angles but are not suited for other clamping requirements occurring, for example, in a mechanical workshop.
The object underlying the invention is, therefore, to so improve a clamping device of the kind described at the beginning that it is suitable for as many as possible of the clamping requirements occurring in an ordinary workshop.
This object is accomplished in accordance with the invention with a clamping device of the kind described at the beginning by a first supplementary jaw with a first flat clamping surface which faces the main jaw of the second clamping yoke and lies closer to it than the first angle clamping surfaces being insertable into the first clamping yoke. The gist of the invention is to be seen in the fact that with the exchangeable supplementary jaw, the first clamping yoke with its angle clamping surfaces is convertible for parallel clamping and so all kinds of flat clamping requirements can be met, for example, on this first flat clamping surface.
It has proven particularly expedient for the main jaws of the first clamping yoke to be spaced from each other so that the first angle clamping surfaces end in spaced relation to each other and form a through-opening on a side of the workpiece receiving means facing away from the second clamping yoke. Hence two parts can be clamped at an angle .alpha..sub.1 relative to each other in a particularly preferred manner in the first clamping yoke. It has proven advantageous, in particular for strip-shaped parts, for the main jaws of the first clamping yoke to have delimiting surfaces facing away from the second clamping yoke which include an angle of 180 degrees - .alpha..sub.1 with the respective first angle clamping surfaces and stand perpendicularly on the plane of motion.
In the embodiments of the inventive solution described so far, no details were given as to the design of the second clamping yoke. This is not absolutely essential to the gist of the invention for independently of the design of the second clamping yoke and due to the design of the first clamping yoke with the main jaws and the first supplementary jaw, clamping of round parts, clamping of two parts aligned at an angle .alpha..sub.1 to each other and parallel clamping with the aid of the supplementary jaw are possible. Within the scope of the inventive solution, it is, therefore, conceivable for a flat clamping surface to be made available on the second clamping yoke and this flat clamping surface can be arranged directly on the clamping yoke or on an insertable supplementary jaw.
It has, however, proven advantageous for the second clamping yoke to carry two main jaws each with a second angle clamping surface arranged at an angle of .alpha..sub.2 <180 degrees relative to the other second angle clamping surface and perpendicularly to the plane of motion so the second angle clamping surfaces form a second prismatic workpiece receiving means open towards the main jaw of the first clamping yoke.
In such an embodiment, large cylindrically or differently shaped parts can be clamped in the vertical direction in a highly advantageous manner using only the main jaws with the first and second angle clamping surfaces.
For angle clampi
REFERENCES:
patent: 4139189 (1979-02-01), Wietrzyk
patent: 4377959 (1983-03-01), De Carolis
patent: 4527786 (1985-07-01), Hsu
patent: 4583724 (1986-04-01), Huang
Bessey & Sohn GmbH & Co.
Lipsitz Barry R.
Watson Robert C.
LandOfFree
Clamping device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Clamping device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Clamping device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-971377