Rotary base for securing tools to a work table

Abstract

Rotary base for securing tools to a work table with a cylindrical support base and truncated upper end, in whose interior and concentric thereto, there is a threaded lower cover and a cylindrical base piston and with a truncated upper end with means to secure tools. The base piston is arranged on the threaded lower cover and is vertically displaced on this threaded lower cover through the interior of the support base, actuated by a lifting system between a lower unlocking position in which the base piston rotates freely around its axis with respect to the support base and an upper locking position in which the rotation of the base piston with respect to the support base is locked by means of friction of its truncated upper end against the truncated upper end of the support base.

Claims

1. A rotary base for securing tools to a work table which comprises: a vertical cylindrical support base having a first truncated upper end configured to be fixed to the work table and in whose interior, and concentric thereto are arranged a threaded lower cover fixed to the interior of the support base, and a cylindrical base piston having a second truncated upper end, the second truncated upper end having means to secure tools to the cylindrical base piston, wherein the cylindrical base piston is arranged on the threaded lower cover and configured to be vertically displaced on said threaded lower cover through the interior of the support base, actuated by a lifting system between a lower unlocking position in which the cylindrical base piston rotates freely around its axis with respect to the support base, and an upper locking position in which the rotation of the cylindrical base piston with respect to the support base is locked by means of friction of the second truncated upper end against the first truncated upper end of the support base.

2. The rotary base for securing tools to a work table according to claim 1, wherein the lifting system is a hydraulic system which comprises: a hydraulic fluid contained between the threaded lower cover and the base piston vertically displacing the base piston with respect to the threaded lower cover, said hydraulic fluid actuated by an actuation plunger which is displaced, in turn, in a cylinder connected to the support base in whose interior the hydraulic fluid is contained and is driven through an interior actuation plunger to the cylinder and is actuated by a threaded knob.

3. The rotary base for securing tools to a work table according to claim 2, wherein at least one seal ring is arranged on an exterior lateral surface of the cylindrical base piston.

4. The rotary base for securing tools to a work table according to claim 1, wherein a seal ring is arranged in a joint of the support base and the threaded lower cover.

5. The rotary base for securing tools to a work table according to claim 2, wherein a seal ring is arranged in a joint of the cylinder of the actuation plunger and the support base.

6. The rotary base for securing tools to a work table according to claim 2, wherein a seal ring is arranged on an exterior lateral surface of the actuation plunger.

7. The rotary base for securing tools to a work table according to claim 1, wherein the support base comprises a lower peripheral wing with a plurality of through-holes configured to be fixed to the work table.

8. The rotary base for securing tools to a work table according to claim 1, wherein the means for securing tools of the base piston comprise a plurality of threaded perforations arranged at its truncated upper end.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) To better understand the invention, an embodiment of the invention will be described below in an illustrative, but non-limiting manner, which makes reference to a series of figures.

(2) FIG. 1 is a sectional elevation of an embodiment of a rotary base for securing tools to a work table object of the present invention.

(3) FIG. 2 is a plan view of the rotary base of FIG. 1.

(4) In these figures, reference is made to a set of elements which are: 1. support base 2. base piston 3. seal rings 4. hydraulic fluid 5. threaded lower cover 6. actuation plunger 7. cylinder of the actuation plunger 8. threaded knob 9. threaded perforations of the base piston 10. through-holes of the support base

DETAILED DESCRIPTION OF THE INVENTION

(5) The object of the present invention is a rotary base for securing tools to a work table.

(6) As is shown in the figures, the rotary base object of the present invention has a vertical cylindrical support base 1 which has a truncated upper end and a lower peripheral wing with a plurality of through-holes by means of which the rotary base is fixed to the work table. In the interior of said support base 1, and arranged centric thereto, there is a threaded lower cover 5 fixed to the interior of the support base 1 and a cylindrical base piston 2 which has a truncated upper end with means to secure tools of any type for example presses, lathes, drills, mills, cutting tools, tightening tools, etc. The base piston 2 is arranged on the threaded lower cover 5 and is vertically displaced on this threaded lower cover through the interior of the support base 1, actuated by a lifting system. The vertical displacement moves the base piston 2 between a lower unlocking position, in which the base piston 2 rotates freely around its axis with respect to the support base 1, and an upper locking position in which the rotation of the base piston 2 with respect to the support base 1 is locked by means of friction produced between its truncated upper end against the truncated upper end of the support base 1 when the base piston 2 is lifted slightly with respect to the support base 1.

(7) According to a preferred embodiment of the invention, the lifting system is a hydraulic system formed by a hydraulic fluid 4 contained between the threaded lower cover 5 and the base piston 2 such that the base piston 2 vertically displaces with respect to the threaded lower cover 5 between the lower unlocking position and the upper locking position. The hydraulic fluid 4 is actuated by an actuation plunger 6 which is displaced in a cylinder 7 connected to the support base 1 through whose interior the hydraulic fluid 4 is pressurized. This hydraulic fluid 4 is driven through the interior actuation plunger 6 to the cylinder 7 which is actuated by a threaded knob 8.

(8) Preferably, the rotary base object of the present invention can have different seal rings 3 in different areas to ensure the water-tightness of the hydraulic fluid, preventing leaks and ensuring effective operation over time. There may be different seal rings 3, for example on the exterior lateral surface of the base piston 2 between the lower cover 5 and the support base 1, in the joint of the cylinder 7 of the actuation plunger 6 to the support base 1 or on the exterior lateral surface of the actuation plunger 6.

(9) According to a particular embodiment of the invention, the support base 1 has a lower peripheral wing with through-holes 10 to be fixed to the work table.

(10) In addition, the means for securing tools to the base piston 2 can particularly be threaded perforations 9 arranged at its truncated upper end.