FR2727054A1 - SEMI-AUTOMATIC CRIMPING TOOL - Google Patents

Abstract

The present invention relates to a semi-automatic crimping tool of the type used for positioning in a stripped electrical cable of a specific terminal using a traditional press, in which said terminal has been placed beforehand, the crimping being produced by the pressure of a press actuator on the corresponding terminal on which said end of the stripped electrical conduit has been placed. Semi-automatic crimping tool, characterized in that said tool is formed by a set of elements suitably fixed to the structure of the press (10), said set being able to slide thanks to a ball pad (16) which moves in -above a guide rail (15) to an end of path provided by a cylindrical stopper 14, the positioner (11) being formed by clamps (26 and 27) whose ends protrude, whose horizontal planes ends (26a) and (27a) come closer thanks to the action of a pneumatic cylinder (22) which actuates the fork (30) and forces said ends (26a) and (27a) to approach thanks to the displacement of said clamps (26) and (27) relative to the axle (25), said cylinder (22) being provided with proximity detectors (24) corresponding to the movement of the grippers (26) and (27).

Description

DESCRIFION

  The present invention relates, as indicated by its title, to a semi-

  automatic crimping whose new characteristics of construction, conformation and configuration achieve the purpose for which it was specifically

  provided, with maximum safety and efficiency.

  The present invention is particularly applicable to pressing machines, essentially intended for crimping terminals which are installed in

  corresponding cable ends.

  The crimping operation consists of the locking and stamping of terminals in the end of an electric cable, an operation which is usually carried out in traditional pressing machines, in the tray of which the end of the cable is that the terminal in their original position above the plate, then lowering the corresponding control support of the press by means of a suitable preform and stamping and pressing the terminal all around the electrical cable deprived at its end of the corresponding insulating sheath. The crimping operation which, as regards the positioning of the cable over the terminal, is usually carried out manually, has the disadvantage that, when the end of the stripped cable is placed in the terminal situated above the platter of the press, it adopts each time a different position since it is impossible for an operator trained in this type of operation to always place the same cable in relation to the extended terminal and ready to be crimped, this which produces an infinity of rejections in the crimping operation due to the incorrect positioning of the terminal when folded and stamped into the end of the cable, for which reason the object of the present invention has been conceived, the main objective of which is to present the stripped cable in the press plate always in the same position, so that the crimping operation occurs in the same way with each drop of the support command, which results in virtually zero releases

  unity and uniformity in the finishing of said crimping operation.

  The object of the present invention is to provide a semi-automatic crimping tool which is formed by upper and lower grippers actuated by one of their ends by means of forks, which in turn receive the movement of a pneumatic cylinder. which forces the ends of the clamps to come closer, holding between the said ends the stripped cable which is placed by the corresponding operator, the free end of the cable serving as a bumper at

corresponding position limiter.

  There is then a right-to-left movement, also due to the pneumatic cylinder, which locates the cable correctly supported by the ends of the clamps near the press plate and above the corresponding terminal, which is retained and stamped by the corresponding control support of a traditional press. The positioning of the cable already stripped between the ends of the clamps, said introduction being limited by the corresponding positioner, gives the crimping operation a uniformity in the positioning of said stripped cable above the corresponding terminal, which makes it possible to previously mentioned operation in the same way and thus to guarantee a high percentage of efficiency

approaching 100%.

  Other details and features of the present invention will become apparent

  more clearly in the following description, with reference to the accompanying drawings,

  in which the preferred details are shown in a somewhat schematic manner. These details are given by way of example, with reference to a possible case of practical realization. However, the present invention is not limited to the details described herein and must

  be considered from an illustrative point of view and without limitation of any kind.

  A detailed description of the various elements cited in this

  invention now comes: a press 10, a positioner 11, a peumatic cylinder 12, a support 13 of cylinder 12, a bumper support 14 for cylinder 12, a guide rail 15, a ball pad 16, a support 17 for rail (15), a gripper support axle 18, a gripper adjustment mat 19, a ball 20, a cylindrical gripper support 21, a pneumatic cylinder 22, a proximity detector 23, a proximity detector 24, a gripper axle 25, an upper gripper 26, a gripper end 26a, a gripper end 26b, a lower gripper 27, a gripper end 27a, a gripper end 27b, a telescopic axle 28, a support

telescopic 29 and a fork 30.

  Figure 1 is a longitudinal sectional view from the front of a conventional press 10 in which is placed in its right side and over its structure a positioning mechanism 11; Figure 2 is a cross sectional view of the press according to the invention; Figure 3 is a plan view of the positioner 10 which is the subject of the present invention. According to the invention, the tool is characterized in that it is formed by a set of elements suitably fixed on the structure of the press 10, said assembly being able to slide thanks to a ball pad 16 which moves over a guide rail 15 to a end of the path provided by a cylindrical stopper 14, the positioner 11 being formed by clamps 26 and 27 whose ends project, the horizontal planes 26a and 27a come closer through the action of a pneumatic cylinder 22 which actuates the fork 30 and causes said ends 26a and 27a to be brought closer by the displacement of said clamps 26 and 27 with respect to the axle 25, said cylinder 22 being provided with corresponding proximity sensors 24 for the movement clamps 26 and 27. According to the invention, the positioner 11 undergoes a movement from right to left by means of the guide rail 15 mounted on the upper part of the press 10, thanks to the action of a cylinder pneumatic dre 12 which pushes the assembly to the left and directs the end of the clamps 26 and 27 close to the plate 31 of the press 10 and vertically relative thereto, the movement of the ends being adjusted thanks to the proximity sensors 23 and 24. In one of the preferred embodiments of the object of the present invention, as can be seen in FIG. 1, on top of the structure supporting a traditional press 10, a positioner tool is mounted using suitable means. 11, whose purpose is to facilitate the exact positioning of a stripped cable at its ends to

near the plateau of the press.

  The positioner 11 is essentially formed of two clamps, one

  lower 27 and an upper 26, the ends 26a and 27a protrude.

  The opposite ends 26b and 27b of the clamps 26 and 27 are mounted on the fork 30 and are actuated by means of the axles 25 of the clamps 26 and 27 by means of the pneumatic cylinder 22 which acts on the fork 30, proximity sensors 24 being mounted at inside said cylinder 22, which indicate to the cylinder 22 the length of the path that it must travel to bring the two ends 26a and 27a closer to the clips 26

  and 27, to retain the stripped end of the corresponding cable.

  The pneumatic cylinder 22 is fixed to the positioning unit 11 by means of a ball 20, and the clips 26 and 27 to a ball pad 16, which slides during the right-to-left approach movement towards the plate 31 of the press. to the guide rail 15, this movement from right to left ending with the support 14 of

stop of the cylinder 22.

  The movement of the positioner 11 is effected by means of a ball 20 actuated by means of the cylinder 12, thanks to the corresponding support 13 situated to the right of the positioner. The corresponding routine operation movement is as follows: the operator places the stripped cable in the ends of the clamps 26 and 27 and more concretely between the ends 26a and 27a until reaching the detector buffer (not shown in the figures ), a horizontal translation movement from right to left occurring then through the help and the impulse of the pneumatic cylinder 12, which pushes the clamps 26 and 27, with the shoe 16 and the guide rail 15 mounted on the

  upper part of the press 10, to the left in order to place the stripped cable

  above the tray, in which the corresponding extended terminal has previously been placed to then operate the press 10 and lower the control support

  29 which produces the actual crimping operation.

  The path of the positioner 11 is guaranteed by the limitation of the stop support 14 located in the left part of the positioner and mounted above the base of the

corresponding press 10.

  We will understand after observing the drawings and the explanation that was

  made of these that the present invention which motivates the present description provides a

  simple and efficient construction that can be put into practice with great ease,

  which undoubtedly constitutes a new industrial result.

  Of course, the invention is not limited to the embodiment described and shown in the accompanying drawings. Modifications remain possible, particularly from the point of view of the constitution of the various elements or by substitution of equivalents

  without departing from the scope of the invention.

Claims (2)

  1. Semiautomatic crimping tool of the type used for positioning in an electrical cable stripped of a specific terminal using traditional press curine, in which the said terminal has been placed beforehand, the crimping being carried out by the pressure of a device for controlling the press on the corresponding terminal on which said end of the bare electrical duct has been placed, characterized in that said tool is formed by a set of elements suitably fixed on the structure of the press (10), said assembly being slidable by a ball pad (16) which moves over a guide rail (15) to a end of travel provided by a cylindrical bumper (14), the positioner (1 being formed by grippers (6 and 27) whose ends project, the horizontal planes of the ends (26a) and (27a) are brought together by the action of a pneumatic cylinder (22) which actuates the fork (30) and obl ige said ends (26a) and (27a) to get closer through the movement of said clamps (26) and (27) relative to the axle (25), said cylinder (22) being provided with corresponding proximity sensors (24) for the movement of clamps (26) and (27).   Semi-automatic crimping tool according to claim 1, characterized in that the positioner (11) is moved from right to left by means of the guide rail (15) mounted on the upper part of the press (10), by the action of a pneumatic cylinder (12) which pushes the assembly to the left and directs the end of the clamps (26) and (27) close to the press plate (10) and vertically with respect to this ci, the movement of the ends being adjusted thanks to   proximity sensors (23) and (24).