FR2546784A1 - DRILLING MACHINE, PARTICULARLY FOR POSITIONING HINGES ON ELEMENTS SUCH AS PANELS OR THE LIKE - Google Patents

Abstract

DRILLING MACHINE IN WHICH THERE IS PROVIDED, ON A VERTICALLY MOBILE SUPPORT 9, 11, A SECOND CYLINDRICAL SUPPORT 16 THAT CAN ROTATE BY A PREDETERMINED ANGLE AROUND ITS AXIS; IN ADDITION THIS SECOND CYLINDRICAL SUPPORT 16 IS PROVIDED FOR A SHAFT 11 THAT CAN ALSO TURN AROUND ITS AXIS AND CAN BE LOCKED IN PREDETERMINED POSITIONS WITH RESPECT TO CYLINDER 11 PLACED ON THE SUPPORT 9, THIS SHAFT BEARING A HEAD 17 AT ONE END SUPPORTING A CERTAIN NUMBER OF PAIRS OF TOOLS 18, PLACED IN AN ORTHOGONAL PLANE AT THE AXIS OF THE ABOVE SHAFT 11.

Description

The present invention relates to a drilling machine intended for

  particular to allow rapid positioning of hinges on elements such as panels

or the like.

  The object of the invention is to create a functionally simple and practical drilling machine equipped with appropriate means to allow the installation of hinges or the like in a short time, but above all to create a machine having, apart from the aforementioned characteristics, also of limited dimensions, with reduction

  consequent production costs.

  The invention also aims to create a drilling machine with which it is possible to mount,

  on a single rotating support, several pairs of simul-

  temporarily so as to allow the operator to choose, in correspondence to the type of work, the most appropriate tools. There are drilling machines in which tools are mounted on a support which is in turn mounted at the end of a substantially horizontal shaft In this type of drilling machines, the tool support can rotate in a parallel plane to the axis of said tree so as to bring one

  either of the tools near the work area.

  However, the presence of the horizontal shaft prevents the support from performing full rotations so that the number of drilling heads that can be mounted on the support is necessarily limited Generally two heads

  are used, less frequently three.

  To remedy the aforementioned drawbacks, the present

  The invention relates to a drilling machine in which the

  tool support can rotate in a plane that is orthogo-

  nal to the axis of the carrier shaft and in which said carrier shaft is in turn mounted inside the cylinder, with respect to which it can be placed in a number of predetermined positions The choice of the pair of tools at

  use is in correspondence with variations in position-

  of the shaft inside the cylinder, while the passage from one tool to another of the same pair is carried out in

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  rotating the cylinder by means of devices of a known type. This particular arrangement therefore makes it possible to mount several pairs of tools on the same support and to perform different types of operations without it being

  tools need to be replaced.

  Other features and advantages of the inventive

  tion will be highlighted in the following description,

  given by way of nonlimiting example, with reference to the accompanying drawings in which v Figure 1 is a schematic view of a drilling machine according to the invention, Figure 2 is a schematic side view of the machine, Figure 3 is a schematic side view taken along the

line A-A in Figure 2.

  In the drawings, we have designated by the numerical reference

  as 1 the drilling machine as a whole The machine 1 comprises a base 2 on which is disposed a fixed working surface 3 and a movable positioning bar 4, with

  adjustable blocking elements of known type.

  The bar 4 can be moved over a certain stroke by means of a crank 5 acting on a mother screw mechanism 6 fixed on the bar itself From the same structure 2 protrude from the supporting columns 7 on which is fixed

a plate 8.

  On said columns 7 is engaged and can slide vertically a support 9, comprising an inner spring

  antagonist 10 and a cylinder 11 which a shaft 11 'crosses.

  On the c 8 external tee of the support 9 is fixed a jack 12 which actuates a rod 13 which in turn controls the rotation of the cylinder 11 The rod 13 acts on the cylinder 11 by means of an arm 14, fixed on one side of the cyl - indre 11 and articulated of

  the other side on the end of the rod 13.

  On the opposite side with respect to the jack 12, still on the support 9, there is provided a support 16 inside which the shaft 11 'can rotate; on the head 17 of said tree

  There are mounted a number of tools, placed orthogonal-

  relative to each other, for example at least one unit

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  drilling 18 and an additional support 19 for the hinges

  res. Inside the head 17, a motor 20 is also provided for actuating said tools. In addition, a lever 21 is pivotally mounted on the upper part 8 and it is articulated on a rod 22, one end of which is

fixed on the support 9.

  An additional lever 23 is also provided for actuating the jack 12. On the support 9 are mounted appropriate mechanical elements to ensure that the cylinder 11 performs precise rotations of 90 when the

cylinder 12 is actuated.

  In the shaft 11 'are formed conical holes, or grooves parallel to the axis, of V-shaped section, in which at least one screw 15 with conical tip or the like is inserted, so as to block the cylinder 11 compared to

tree 11 '.

  The machine operates as follows The hinges are placed manually on the support 19 This support is provided with templates which hold the hinge to be inserted by means of systems

magnetic and / or mechanical.

  The bar is correctly positioned and the crank) 5 is actuated By a downward movement of the lever 21, the rod 22 presses on the support 9 and makes it descend in

  opposition to the action of the spring 10; consequently the whole

  ble of the drilling unit 18 is brought into a working position Once the drilling has been carried out, the support 9 and therefore the unit or head 17 are brought back into the

  initial position, also under the action of spring 10.

  At this stage, by actuation of the lever 23, the pneumatic cylinder 12 is actuated, allowing rotation of the cylinder 11 and the shaft 11 'so that the hinge holding unit is placed vertically on the panel

to implement.

  After positioning the unit 19, the lever 21 is actuated so as to act on the support-9, making

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  lower all the devices in order to allow the insertion of the hinge supported by the element 19 into the hole previously produced by the tool 18 After termination

  of the cycle, the tool 19 is returned to its working position.

  The lowering stroke of the support 9 is stopped by a locking nut, while the stroke of the support 19 can be adjusted in order to allow the correct insertion of the

  hinge in the hole in the panel.

  In the machine shown in the drawings, only one pair of tools has been indicated; however it is obviously possible to mount two or more pairs of tools on the head 17; in addition it is possible to choose the most suitable pair for each different type of operation simply by correctly positioning the shaft 11 'relative to the

cylinder 11.

  It is obvious that similar means can be used in the implementation of the invention. For example, the vertical movement of the support 9 can be controlled by the hydraulic means and by end-of-stroke elements.

  possibly provided of a known type.

  From the description given above, the

  advantages of the drilling machine according to the invention become clear, in particular: a) possibility of mounting on a single support a number of pairs of tools to be used alternately, saving time as a result b) faster replacements pairs of tools

  c) rapid and exact positioning of said pairs of tools.

  Obviously the dimensions and the materials used can vary in correspondence to the different requirements of use. 25467 u 4

Claims (3)

  1 drilling machine, characterized in that there is provided, on a vertically movable support (9, 11), a second cylindrical support (16) which can rotate about its own axis at a predetermined angle, in that it is provided in said second cylindrical support (16), a shaft (11 ') which can also rotate about its own axis and can be locked in predetermined positions relative to said cylinder (11), and in that it is provided for one end of said shaft a head (17) carrying a number of pairs of tools (18, 19), placed in a plane orthogonal to the axis of said tree (11 ').   2 drilling machine according to claim 1, charac-   characterized in that there is provided a first support (9), which can rotate between two predetermined positions, and a second support (16), which can rotate relative to the first support and can be locked in predetermined positions,   supporting a number of pairs of tools (18, 19).   3 drilling machine according to claim 1, charac-   terized in that it is provided, to ensure the fixing of the carrier shaft (11 ') on the rotating cylinder (11), means capable of producing the insertion of a rod with conical tip (15) in seats wedge shaped in said tree (11 ').