SU984602A1 - Single-impact cold upsetting automatic machine - Google Patents

Description

(54) Single Shot Cooling Automat

one

The invention relates to the processing of metals by pressure, namely to devices for disembarkation.

Famous landing machine containing the landing matrix, a punch with a central finger, as well as grippers 1.

A disadvantage of the known automaton is its complicated construction, due to the additional position for pushing the workpiece into the grippers.

Also known is a single-impact cold heading machine containing cutting and landing matrix mounted on the bed, a cut mechanism with a stub knife mounted on a lever that can be moved from the position of the cut to the drop position, a mechanism for pushing out the stamped products from the landing matrix and the punch, spring-loaded central fingers in the landing plate and punch 2.

The disadvantage of this automaton is a reduction in the quality of products due to the annular outflow of metal, which is stamped into the body of the product.

The purpose of the invention is to improve product quality and productivity.

The goal is achieved by the fact that in a single-shot cold-heading machine containing cut-off and disembarking dies mounted on a bed, a cut-off mechanism with a drop-down knife mounted on a lever that can be moved from the cut-off position to the drop-down position, a mechanism for ejecting stamped products from the drop-down matrix and punch, is spring-loaded central fingers in the heading die and punch,

10, a punch is made in the stub knife for free finger exit, and the central fingers in the upsetting matrix and punch are spring-loaded oppositely and form a centering grip for the workpiece.

15

The force of the spring of the punch finger, it is advisable to choose more force spring finger matrix.

Claims (2)

FIG. 1 shows the proposed Av20 tomato, top view; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. 2 (image of the mechanism for cutting the workpiece and the upsetting matrix from the side of the slide); in fig. 4 shows a section B-B in FIG. 3; in fig. 5 is a section of YYD in FIG. 4 {sleeve knife of the closed type with a slot). The machine comprises a frame 1, a crankshaft 2 for driving the slide 3, a transverse shaft 4, a camshaft 5, on which a block of fists 6 is mounted, a cutting mechanism with a lever 7 and a knife 8, a transverse camshaft 9 with a block of fists 10 for driving the lever 11 ejection, cut-off matrix 12, adjustable stop 13, upsetting matrix 14, punch 15, central fingers 16 and 17, respectively, of the matrix and punch, counter-spring-loaded using springs 18 and 19. The machine operates as follows. The calibrated material in the form of a rod 20 is supplied by the feed unit through the cutting matrix 12 and the opening of the cutting knife 8 until it stops 13. Driven from the transverse shaft 4, the lever 7 with the knife 8 cuts off the workpiece and transfers it to the hub matrix 14 in the knife bore hole. The moment the billet reaches the landing point, the punch 15 fits. The punch finger 17, spring-loaded with spring 19 with a force greater than the force of spring 18 of matrix finger 16, pushes the workpiece out of the hole in the knife 8, which returns to the position in the next time interval. th segments. In this case, the matrix finger, resisting and pressing the workpiece, moves back to the moment of clamping. Thus, a centering grip is formed. After shtampovki pozuzun Z with punch p. 15 departs from the matrix block, and at a certain distance, the finger 16 of the matrix 14 using ry (Pu./chaga 11 pushes the finished product. The cycle is repeated. The proposed technical comparison compared to the prototype, provides improved quality of the obtained products and performance. Formula of the invention: 1. Single-impact cold heading machine, containing 1 cut-off and outboard matrix mounted on the bed, the cut-off mechanism with the stub knife fixed on the lever with the possibility of shifting from position to landing position, push-out mechanism of extruded products from the upsetting matrix and punch, spring-loaded central fingers in the upsetting matrix and punch, characterized in that, in order to exaggerate product quality and performance, a free cutout of the n-wanson finger is made in the stub sleeve , and the central fingers in the upsetting matrix and the punch are spring-loaded counter and form a centering grip for the workpiece. 2. A dispenser according to claim 1, characterized in that the spring force of the punch finger exceeds the spring force of the die. Sources of information taken into account in the examination 1. US patent number 3831411, cl. 1974. 2.Navrotsky, GA Forge-pressing automats. M., “Mashinostroenie, 1965, p. 139-140, fig. 80 (prototype). 20 12. 18 fff