SU480580A1 - Stamp holder of multi-position sheet-press automatic press - Google Patents

Description

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The invention relates to the field of press press equipment.

A die-stamper of a multi-position press-forming press of an automaton is known, which contains a rod with grooves for fastening dies and a nut connected to it, which is stirred in the housing, as well as a mechanism for selecting gaps in the stem-nut connection. Such a holder has large dimensions, its adjustment and assembly are difficult.

In the proposed die holder, these drawbacks are eliminated due to the fact that the mechanism for selecting gaps in the stem-nut connection is mounted on the housing in which the nut is inserted and made in the form of a power cylinder connected by means of a threaded connection to the rod.

FIG. 1 shows the installation of stamp holders on a slider of a multi-position automatic press; in fig. 2 shows the proposed die holder in section.

The threaded rod 1 has a rectangular bottom underneath with grooves for fastening dies. The axial channel in it serves to install the ejector rod (not shown in the figures).

The rod is screwed into the nut 2, housed in the housing 3, mounted on the slider 4 of the press with bolts 5. A worm wheel is cut on the outer surface of the nut. The cover b, attached to the body 3 by bolts 7, prevents the nut from falling out of the body. The nut can rotate, but is stationary in the axial direction, since it rests on the ledge B of the body from above, and from below on the cover 6. The sliding key 8, which is fixed on the cover 6 by the bolt 9, fits into the groove of the rod and prevents its rotation.

In the rectangular thickening of the stem there is a horizontal hole in which a 10 worm is located, which engages with a worm crown of the nut 2. The caps 11 fixed in the stem hole prevent axial movement of the worm. A thread is cut on the rod from above, and the housing of the cylinder 12 is screwed on it; selected axially upwards.

Not before punching, turning the screw to 10, turn the nut 2. The rod 1, screwed into the nut, moves up or down (it cannot rotate itself, it is kept by the sliding key 8 from turning it).

After the stem is installed with the clamp attached to it in the desired position, the stamping is performed. This is due to the fact that the rod and nut are compressed upward with compressed air in cavity B, the clearance in the thread of the nut and stem is selected upwards, the gap between the end of the nut and end B is also selected. Therefore, dynamic impacts at the joints of parts and in the thread does not occur, which increases their durability. Punching accuracy is improved.

The installation of the device for selecting gaps on the cartridge itself significantly reduces the size of the stamp holder in the plan (these dimensions for multi-position machines are always very limited), the dimensions of the slide (front to back) and the frame of the press. The design of the cartridge is simplified, the possibility of nodal assembly is created.

Subject invention

The die holder of the multi-position press-forming automatic press machine contains: a stem with grooves for fastening the dies and a nut connected to it, stirring in the housing, as well as a mechanism for selecting gaps in the stem-nut connection, which, in order to reduce the dimensions, to facilitate adjustment and improve the assembly, a mechanism for selecting gaps in the stem-nut joint is mounted on the housing in which the nut is placed, and is made in the form of a power cylinder connected by means of a threaded joint to the stem.

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