RU1821264C - Press tool for manufacture of products with bent-in edges - Google Patents

Abstract

Use: for stamping parts on elements in a single and small batch production, in particular for producing products with edges bent inwards. The inventive stamp is made with wedge mechanisms, the crawler of which is pivotally connected to the bending element mounted on the top plate by pushers with heads mounted with the possibility of periodic interaction of the ends with the bending element, an intermediate plate with a removable punch holder mounted on the upper plate on elastic base with the ability to move along the columns along the pushers to their heads, and a spacer element made with the possibility of placement between the upper plate and the weft stove, as well as a set of punches and dies. The stamp is also provided with adjustable workpiece stops mounted on the creeper of the wedge mechanism. 1 s.p. f-ly, 4 ill.

Description

The invention relates to the processing of metal by pressure, and in particular to devices for stamping parts into elements in a single and small batch production, in particular, to products with edges bent inwards.

The purpose of the invention is the expansion of technological capabilities.

In FIG. 1-4 schematically shows a stamp for receiving products with the edges bent inward, and contains the upper 1 and lower 10 plates connected by guide columns 3, a bending punch 9.8, 5 located in the upper part of the stamp and a matrix unit mounted on the lower plate with an ejector 16, 15, 17, including installed with the possibility of reciprocating movement in

plane of the bottom plate bending element 13 with a bending edge. It is equipped with a wedge mechanism, a cradle 11, which is pivotally connected to the bending element 13. mounted on the top plate 1, pushers 4 with heads mounted with the possibility of periodic interaction of the ends with the bending element 13, the intermediate plate 5 with a removable punch holder 8, mounted on the upper plate 1 on an elastic base 7 with the possibility of moving along the columns 3 along the pushers 4 to their heads and a spacer element 7. made with the possibility of placement between the upper plate 1 and the intermediate plate 5, also a set of punches 9 and 16 matrices.

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A die is used to produce articles with edges bent inward as follows.

Bending of the workpiece is carried out from large sides, see Fig. 4 (1; 2), for which replaceable parts of the tool 8, 9, 13,16 are installed. the stops are adjusted. the workpiece is mounted on the slider 11 to the stops 12. and the rigid stop 6 in the operating position 1 (see Fig. 2) and by moving the top plate 1 through the rigid stop 6 of the vertically moving holder 5 of the punch 9, the first bending is performed (see Figs. 3 and 4). At the first bend, wedges 3 do not work. Then the press slider is lifted approximately 10-15 mm, the rigid stop 6 is moved from the operating position (see Fig. 1). while the elastic buffer 7 will occupy the working position and through the wedge 2 from the upper plate 1; elastic buffer 7, slider 11, adjustable stop 12. swinging punch 13 and preload 4 a second bending and folding of the end of the part is performed. Then, the slider of the press returns to its original position, the workpiece is removed from the punch 9, and the above work is performed in the sequence (see Fig. 4) of the remaining sides.

The use of the invention will expand the technological capabilities of the stamp.

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Claims (2)

1. The stamp for receiving products with the edges bent inward, containing the upper and lower plates connected to the guide columns, a bending punch located on the upper part of the stamp and mounted on the lower plate matrix unit with an ejector, including mounted with the possibility of reciprocating moving in the plane of the bottom plate a bending element with a bending edge, characterized in that, in order to expand technological capabilities due to various sizes, it is equipped with a wedge mechanism, a crawler which is pivotally connected to a bending element fixed to the top plate by pushers with heads mounted with the possibility of periodic interaction of the ends with the bending element, an intermediate plate with a removable punch holder; mounted on the top plate on an elastic base with the ability to move along the columns along the pushers to their heads, and a spacer element configured to be placed between the top plate and the intermediate plate, as well as a set of punches and dies. 2. The stamp according to claim 1, with the exception that it is provided with an adjustable stop for the workpiece mounted on the creeper of the wedge mechanism. Ft. 1 . ff Itl / f 2 HiufuSnodto & a f f % z