SU845988A1 - Die for punching holes or blanking parts from non-metal materials - Google Patents

Description

(54) STAMP FOR PUNCHING HOLES OR CUTTING DETAILS FROM NON-METALLIC MATERIALS

one

The invention relates to the cold stamping of non-metallic sheet materials, in particular to the stamping of holes in sheet plywood, and can be used in the woodworking industry and instrument-making industry.

A stamp is known for punching holes or cutting out parts from nonmetallic materials, containing two oppositely located knife tools, mounted on the parts carrying them, one in the movable and the other in the fixed part of the stamp, made with ribs, and also containing counter movable ejector located in the lower part, and the central clamp located in the upper part 1.

The disadvantage of this stamp is the inadequate quality of the parts produced.

The purpose of the invention is to reduce the effort required for stamping and to improve the quality of the parts produced.

To this end, a stamp containing two counter-located knife tools mounted on the parts carrying them, as well as counter-moving ejector and central clamp, is located

: In the upper part, the chip is provided with a rotary and a lower ring clamps, covering the knife tools installed with the possibility of returning

translational motion, as well as, at least, two stops, located between the ring clamps and the stacks of knife tools, limiting the closure of the latter, as well as the wmp amp equipped with a mechanism for moving the plug and the lower ring clamp made in two sets of puff | s in the upper and lower parts of the stamp body between the annular pressed parts carrying knife tools

you, 15 and at least three rods, one of which, each of which is connected to the plan and the other end of one rod, is connected to a piston, and the other two

with a ring clamp on them.

20 In FIG. 1 shows a stamp, continued

s cut; in fig. 2 — node I in FIG. one

the position of the working parts in closed w

JMpe).

A punch for punching holes or punching parts made from metallic materials consists of a mounting part 1, a guide column 2, a guide sleeve 3, a step screw 4, an emphasis 5, a center clamp 6, a shank with a thread 7, a brush 8, a set screw 9, the upper knife tool 10, buffer 11, upper ring clamp 12, cylindrical restrictor stop 13, lower bearing part 14, lining 15, rod 16, lower knife tool 17, ejector 18, screw 19, rod 20 associated with the ejector, lower ring prizhi ma 21 and 22. The strips 23 for a schtampuema detail.

The stamp works as follows.

The movable (upper) part of the tag is fastened by the shank 7 to the press ram, and the lower bearing part of the stamper is mounted on the press plate of the press and the lower bearing part 14 with the pads 15 is pressed against the hooks. The upper knife tool 10 is moved and centered with respect to the lower knife tool 17 along guide columns 2, along which guide sleeves 3 are moved. To remove part 23 from any of the knife tools 10 or 17 and when the chip returns to its original position The ring clamps of the upper 12 and lower 21 acting from the buffer 11 are intended. The amount of compression of the buffers 11 is controlled by stepped screws and rods 16 and 20. The formed waste is removed from the wicked part of the knife tools 10 and 17 cent. cial clamp 6 and ejector 18, the force sensing schtok through 9 and the rod 20.

The position of the working parts in the closed box is shown in FIG. 2, i.e., the cutting tools 10 and 17 cut into the sheet plywood only half of its thickness, which is ensured by the interaction of the lugs 5 with the ring clamps 12 and 21. The adjustable or removable lugs 5 allow you to adjust the actual incision. Moreover, the possibility of meeting and damaging the cutting edges of the knife tools 10 and 17 is provided by a gap d 0.01-0.03 due to the presence of cylindrical stops-stops 13. In this case, the formed waste can remain in the part and then can be removed from it.

Claims (1)

Invention Formula A punch for punching holes or cutting out parts from non-metallic materials, containing two oppositely located knife tools, mounted on the parts carrying them, one in the movable and the other in the fixed part of the chip, made with ribs, and also containing the counter-moving ejector located in the lower part, and the central clamp located in the upper part, characterized in that, in order to reduce the effort required for shtampovki, and increase the quality of manufactured parts, the stamper is provided with upper and These ring clamps covering knife tools installed with the possibility of reciprocating motion, as well as at least two stops located between the ring clamps and edges of knife tools limiting the closure of the latter clamp, made in the form of two sets of buffers located in the upper and lower parts of the clamp between the annular clamps and the parts carrying the knife tools, and At least three rods, one end of each of which is connected with the bar, and the other end of one rod is connected with the ejector, and the other end with the lower ring clamp. Sources of information taken into account in the examination 1. Japanese patent number 51-1870, cl. 74CO, № 46-42190, published. 01.21.76.