RU1794641C - Method and device for center-popping blanks by mated surfaces - Google Patents

Abstract

The invention relates to measuring technique, in particular to hand tools for coring blanks in mechanical engineering and other industries. The purpose of the invention is to increase the marking performance. The method of punching consists in the fact that a two-sided punching element is placed between two workpieces, and punching is carried out by simultaneously moving the workpieces towards one another. The device for implementing this method is equipped with a core element mounting mechanism made of a base with a base surface of a fixed carriage moving along concentric guides, with a bar mounted on it that carries the core element, and two linear scales for placing the device on workpieces, a scale on the bar and. dial with noniuses for setting equal-sized tips of the core element at specified coordinates. 2 sec and 1 z.p. f-ly, 3 ill.

Description

The invention relates to the use of a hand tool for core blanking in mechanical engineering and other industries.

There is a known method of transferring hole centers to mating parts and a center punch for its implementation. The use of the invention is limited to the transfer of centers of threaded holes. It cannot be used if one of the mating parts is not threaded.

A method is known for punching mating workpieces using a device representing a disk with two oppositely directed tips. During operation, the longest point (prong) is pierced into one of the mating wooden blanks, the other blank is laid on the core element and pressed. After separation of the preforms, the core element is separated by hooking with an auxiliary tool on the cut edge of the disk. ..

In this way, requiring several operations, the application of which is limited to the woodworking area, the transfer of the previously designated center from one mating part to another is actually carried out. Simultaneous marking of a pair of coaxial centers in one operation is impossible due to the lack of a mechanism for placing the core element between the workpieces and setting its tips at the required point.

The disadvantages noted in this prototype are eliminated in the claimed invention, by which it is possible

h "

Yu

about

B

poring of blanks both on mating and on / open surfaces, in both cases directly along polar coordinates (without preliminary marking by risks), counted from the edge of the blanks, taken as the base.

An object of the invention is to increase productivity. The goal is achieved by that; that a two-sided core element with equal points is placed between two workpieces, and punching is carried out by simultaneously moving the workpieces towards one another. Device; to implement this method, it is equipped with a core element installation mechanism made in the form of a base with a basal surface and linear and angular, scales placed on the base with the possibility of rotation relative to the circular scale of the carriage and a rod installed in it with a scale, at one end of which is fixed core element; and the carriage has two noniuses for interacting with the base dial and the boom scale, respectively. To core open surfaces, the device is equipped with a protective cap made of magnetic material mounted on the disk of the core element from the side of one of the points, and an additional scale on the base surface of the base - to place the device on the workpiece, and the core disk of the core element is made of magnetic core th material.

Figure 1 shows a General view of the device; figure 2 - section aa in figure 1 (enlarged); in Fig. 3 - a protective cap mounted above one point (enlarged),

A device for implementing a method of punching workpieces on mating surfaces comprises a double-sided core element 1 with equal spikes, a supporting rod 2, a base 3 with a base element 4, a linear scale 5, a base surface 6 with an additional scale applied to it (zero marks both scales are located at the point of passage of the geometric axis of rotation of the bar),. dial 7, concentric guides 8,9,10,11 to move the carriage 12, formed by a thickened part of the base 13, a notch 14 and a circular

bypass 15, noni 16 and 17 for engaging with the dial base and the bar scale, respectively, as well as a protective cap 18.

The device is mounted on the blanks as follows: On the plane of the blanks (plane), which are basic structurally or taken as the base ones, the risk is applied that serves as the starting point of reference for the specified polar coordinates of the positions of the core points. The device is pressed against the workpieces with the base surface, combining the zero mark of the linear scale with the indicated risk. . .

Claims (1)

SUMMARY OF THE INVENTION .1. A method of punching workpieces on mating surfaces, namely, that they are cored using a two-sided core element, including the fact that, in order to increase productivity, the core element positioned between the workpieces, and the core is not carried out by simultaneous movement - the workpieces toward one; the other - ... . 2,. A device for kerneia of workpieces along mating surfaces, containing a core element made in the form of a disk with two oppositely directed points, the only one being that it is equipped with a core installation mechanism an element made in the form of a base with a base surface and linear and angular scales placed on the base with the possibility of rotation relative to the circular scale of the carriage and a rod installed in it with a scale, at one end of which a core element is fixed, the carriage has two noniuses for Interacting with the base dial scale and the rod scale, respectively, and the points of the core element are made large. 3, The device according to claim 2, with the exception that it is provided with a protective cap of magnetic material mounted on the disk of the core element -co. the side of one of the points, and an additional scale on the base surface of the base to place the device on the workpiece, and the disk of the core element is made of magnetically conductive material. tE