SU1034818A1 - Method and apparatus for making parts with elongated axis - Google Patents

Abstract

1. A method of manufacturing parts with an extended axis from a wire material, which includes the operations of supplying the source material, die forging and post processing, characterized in that, in order to increase productivity by eliminating orientation of the workpiece when it is fed for subsequent processing, simultaneously with the start of forging straightening the wire material in the direction opposite to the direction of its supply to the stamping zone. 2. A device for carrying out the method according to claim 1, comprising a feed cylinder in the form of a ram cylinder with a gripping tool and a molding tool, characterized in that it is equipped with a straightening mechanism located between the molding tool and the feeder, and the straightening mechanism is mounted on the ram of the power cylinder feed mechanism. CO 4 00 00

Description

The invention relates to the processing of metals by pressure, in particular for the manufacture of earhook for spectacle frames from wire. Closest to the present invention is a method of manufacturing parts with an elongated axis of wire material, including the operations of feeding the raw material, die forging and post-processing 1. The method is carried out with an apparatus for manufacturing parts with an elongated axis of wire material containing a feed mechanism in form of power cylinder with a grip and molding tool. A disadvantage of the known method is the presence in it of a large proportion of auxiliary time required for orientation of the blanks and their inter-operational transportation. The purpose of the invention is to increase labor productivity by eliminating the orientation of the workpiece when it is submitted for subsequent processing. This goal is achieved in that according to the method of manufacturing parts with an elongated axis of wire material, which includes the operations of feeding the raw material, die forging and subsequent processing, simultaneously with the start of the forging, the wire material is straightened in the opposite direction to the direction of the die. The method is carried out with a device comprising a feed mechanism in the form of a ram cylinder and a molding tool, a straightening mechanism located between the molding tool and the feeder, while the straightening mechanism is mounted on the stem of the ram cylinder of the feed mechanism. FIG. 1 shows an apparatus for carrying out the method; in fig. 2 - the same area of operations; in fig. 3 - preparation; in fig. 4 - the same, top view; in fig. 5 - ready detail; in fig. 6 - the same, top view; in fig. 7 - the same, side view; in fig. 8 is a section A-A in FIG. 4. A device for carrying out the method, including the operations of feeding, straightening I, punching II, stretching by bending III and cutting IV, comprises a drum 1 with a coil of wire 2, passed through a washing device 3, a gripping mechanism 4 and a straightening mechanism 5, as well as a rod 6 feed mechanism 7, press 8, die mold matrix 9, die molding die 10, bending die 11, die die 12, die die 13, slider 14, bracket 15, pneumatic distributors 16 and 17 controlling the operation of the power cylinder 7. Method using os device schestvl follows. The end of the wire 2 from the drum 1 is conducted through the bath 3, the gripping mechanism 4-, the straightening mechanism 5 and driven into zone II under the die 10 of the forming die. Press 8 switch to a single move. In zone II, the relief and contour of the first billet of the temples is stamped so that simultaneously with the beginning of the stamping, the initial profile of the material in zone I begins to peel under the second blank, in the direction P - opposite to the direction P - feeding it into the stamping zone II. Such an implementation of these operations places the potential for excess material being displaced from the input punch window. deflect the axis of symmetry of the original profile in the I zone of its profile from the axis of symmetry of the contour of the sheath being stamped in the II zone, as a result of which the said axes remain coaxial with the material feed axis in the die in the direction II. As a result, when the material is subsequently fed into the stamping zone, the axis of its initialized profile self-aligns with the axis of the actuating elements of the stamp and thus reduces the auxiliary time for the orientation of the workpiece relative to these elements. interoperable transportation time. If, during the manufacturing process, for example, a cutting along the contour is followed by volumetric stamping, the method is used as follows. The wire is fed further into bending zone III. The press is turned on for one stroke and the contour of the second blank is stamped in zone II and the profile is drilled under the third blank in zone I in this way. After that, the wire is fed to the IV cutting zone and again includes a press for one turn. After this switch-on, a straightening under the fourth billet is simultaneously performed in zone I, in the zone II a contour of the third billet is stamped, in the third zone the contour of the second billet is pulled out with a punch 11 in the direction I, and in the IV zone the first billet is cut along the contour. In zone III, the second preform is stretched so that the material displaced from the exit window of the forming punch in zone II does not reject in the third zone the axis of symmetry of the stamped contour of the second blank from the axis of symmetry of the executive elements of the cutting tool in zone IV. After that, the press is switched to automatic mode and everything described is carried out in automatic mode. When the automatic mode of the press, the whole device works as follows.

At the end of the stroke of the slide 14 at the moment of punching beginning, the bracket 15 turns on the pneumatic distributor 17, and it feeds air into the right cavity of the cylinder 7. As a result, the rod 6 goes to the left and the straightening mechanism 5 located on it produces a straightening, and the locking mechanism 4 opens and moves to the left feed pitch. At this time, the forming and die cutting work. Then the slider 14 goes up and the bracket 15 includes a pneumatic distributor 16, resulting in a rod 6

With the clamping mechanism 4 clamped by wire 2, it goes to the right and thus the material is fed to the next processing cycle.

If, in the process of manufacturing, the relief and contour of the blank is stamped with a non-laminated stamp, then the device does not use an extrusion punch 11 and a die for cutting out along the contour.

The proposed method and device can improve performance compared with the prototype.

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Claims (2)

1. A method of manufacturing parts with an elongated axis of wire material, including the operation of supplying the source material, die forging and after blowing, characterized in that, in order to increase productivity by eliminating the orientation of the workpiece when it is fed to the subsequent processing, simultaneously with the beginning of stamping carry out straightening of the wire material in the direction opposite to the direction of its supply to the stamping zone. 2. A device for implementing the method according to π. 1, comprising a feed mechanism in the form of a gripper cylinder and a forming tool, characterized in that it is provided with a straightening mechanism located between the forming tool and the feeding mechanism, wherein the straightening mechanism is mounted on the rod of the power cylinder of the feeding mechanism.