Abstract:
This disclosure relates to an indexing feed mechanism for a cutting machine comprising an indexing vise for gripping a workpiece and moving it forward into a cutting position. The mechanism includes a lead screw interengaged with complementary means formed on a stopper means adapted to limit the rearward extent of the stroke of the indexing vise. Rotation of said screw will, therefore, cause translation of said stopper means thereby varying the rearward limit of travel of the indexing vise during its stroke. The lead screw extends from a rotatable shaft and means located at the operating station of the cutting machine are provided for rotating the shaft. The shaft is operably connected to a digital indicator which indicates in digital numerals the predetermined stroke of the indexing vise as a function of the angular position of the shaft.
Abstract:
Apparatus is disclosed for forming heat exchanger tubes having two helically wound foil strips each of which is provided with two lanced legs extending substantially perpendicular to the base tube. The foil stock is supplied from the interior of a coil consisting of two interleaved strips wound in a spiral form. The strips are separately fed and formed and are subsequently wound on an axially movable non-rotating tube. The winding head subassemblies are symmetrically positioned to provide dynamic balancing.
Abstract:
For the advancing or feeding motion of bars, wires or the like up to now in most cases two hydraulic devices were used, one for gripping the rod and the other for moving it. According to the invention, to make the apparatus more simple, one single hydraulic cylinder is used for this purpose and according to one embodiment of the invention the piston moved in the hydraulic cylinder actuates at the beginning of its stroke the gripping means and thereafter it shifts this gripping means together with the rod or other workpiece; according to another embodiment the piston is used only for the moving or feeding but the gripping is produced by a series of rings actuated by the same hydraulic fluid which acts on the said piston.
Abstract:
Method of producing a body (1) for bar feeders, wherein it comprises a first molding step (A) carried out with the aid of a first molding material (M1) in a mold (20) jointly with an overmolding step (B) of a countermold (50), the shape of the mold (20) and/or the shape impressions of the countermold being conceived to achieve in an integral way at least one structural and/or functional element of the said bar feeder.
Abstract:
A muntin bar fabrication system can be used to efficiency produce a wide variety of different types of muntin bars, allowing the fabrication of both standard and custom muntin bar assemblies for doors, windows, and other fenestration products. In some examples, the fabrication system includes a muntin bar stock storage assembly that holds multiple different types of muntin bar stock. The system also includes a muntin bar stock extraction device that extracts one of the different types of muntin bar stock from the storage assembly and conveys the extracted muntin bar stock to a feed device. The feed device feeds the extracted piece of muntin bar stock into a cutting system that includes a multi-axis cutter. The cutting system that performs one or more cutting operations on the extracted muntin bar stock so as to fabricate one or more individual muntin bars from the extracted muntin bar stock.
Abstract:
This application relates to methods for applying automated precision machining operations to an oversized workpiece with a compact computer numerical control (CNC) machining apparatus. By shifting an oversized workpiece through a working area of the CNC machining apparatus, the CNC machining apparatus can apply machining operations to any portion of the workpiece in an automated manner. To achieve precision results, a position of the workpiece is tracked as the workpiece is shifted through the working area. In some embodiments, a probe can be utilized to track the shifting of the workpiece by determining a location of a machined feature after a particular shift has been completed. In this way, a position of the workpiece can be tracked without having to rely upon tolerances inherent to a workpiece manipulator.
Abstract:
Enhanced methods are disclosed for handling cylindrical tubulars, advantageously in association with cleaning, inspection and other operations on the tubular. The tubular is held stationary while it is rotated. During rotation of the tubular, internal and external cleaning systems, and data acquisition systems, pass up and down the length of the rotating tubular. In preferred embodiments, a first tubular is loaded onto the handling machine, whereupon it is indexed and then rotated. Cleaning, inspection and other operations may be performed during rotation. Once operations are complete, the handling system ejects the first tubular while queuing up a second tubular to be loaded. The handling machine comprises a plurality of user-positional pods. Each pod includes scissor mechanisms, index machines and a roller machine to perform the handling methods. Sensors on drive rollers in the handling machine generate vibrational response data of the tubular while it rotates.