SU879270A1 - Device for measuring deformation in pressing in parts - Google Patents

Description

I

The invention relates to a measurement technique, namely, devices for measuring the deformation of solids.

A device for determining the deformation when pressing parts is known, comprising a housing on which a loading mechanism is installed, a load meter, made in the form of a cantilever flat spring and an indicator in contact with the rod with the free end of the spring, and a strain gauge, made in the form of an eccentric with a working surface intended for contacting with the surface of the hole in the part into which the 1 J press is pressed.

The disadvantages of this device are the comparatively low accuracy of measurements, associated with the lack of special tools for mounting the device on the part, and the impossibility of installing

devices on the pressed part.

The closest to this invention in its technical essence and the achieved positive effect is a device for measuring deformation, when pressing in parts, containing a ring-shaped housing on which a loading mechanism, a load gauge, executed in the form of a cantilever flat spring, and an indicator, are installed. rod with a free spring end, strain gauge, made in the form of an eccentric with a working surface, designed to contact with the surface of the press Details of the fall, and the indicator in contact with an eccentric rod ,. adjusting cams and damped clips 2. .

Claims (2)

The disadvantage of this unit; Troika is the impossibility of measuring the deformation of the object being pressed. The purpose of the invention is the expansion of functional capabilities. This target is made possible by the fact that the eccentric is accomplished with an additional working surface located about its diametrically main working surface relative to its axis. FIG. 1. shows a general view of the device for determining the deformation of p) and, pressing in the parts, FIG. 2 - the same, end view. A device for measuring the deformation during the pressing in of the parts comprises a housing 1 ,. executed in the form of a ring on which a loading mechanism is installed in the form of a screw 2 and a nut 3, a measuring load in the form of a cantilever flat spring 4 and an indicator 5 fixed in the arm 6 and contacting the rod with a free spring of spring 4, a strain gauge made in the form of an axis 7 an eccentric 8 with two working surfaces 9 and 10 located diametrically relative to the axis 7, and an indicator 11, the stock of which contacts the eccentric 8, the adjusting cams 12 and the damped clamps, each in the form of a rod 13, a rubber bushing 14 and a nut 15. One end of the spring 4 is placed on the eccentric 8 and the other is in contact with the screw 2 passing through the hole 16 in the eccentric 8. The working surfaces 9 and 10 of the eccentric 8 are in contact with the surface of the hole 17 in the end of the controlled part 18 and with the surface of the pressed contact part 19. Handles 20 are also installed on the body 1. The device for measuring the deformation when pressing the parts works in the following way. When pressing the piece 19 into the hole 17 of the piece 18, the annular body 1 is mounted on the piece 19, supported by shock absorbing presses made in the form of the rod 13 of the sleeve 14 and the nut 15, and clamped by turning the adjusting cams 12. Then rotate the screw 2, which through the nut 3 and the spring 4, the eccentric 8 rotates on the axis 7 until its working surface 9 comes into contact with the surface. Details 19, and then the spring 4 is loaded, continuing to rotate the screw 2. The load value is recorded by the indicator 5 ,. and the magnitude of the deformation is indicated by indicator 11. When determining the deformation of the surface of the hole 1 7. In part 18, the screw 2 is rotated until the working surface 10 contacts the surface of the hole 17, and then the above operations are repeated. The application of the invention makes it possible to expand the functionality of the device for measuring the deformation when pressing in parts by allowing the measurement of the deformation of the surface of the hole into which the pressing is carried out. Claims: Device for measuring the deformation when pressing in parts, comprising a housing executed in the form of a ring, on which a loading mechanism is installed, a load meter made in the form of a cantilever flat spring and an indicator in contact with a rod with a free spring end, a strain gauge made in the form of an eccentric the working surface intended for contact with the surface of the pressed-in part, and the indicator contacting the rod with the eccentric are set. Cams and damped clamps, characterized in that, in order to extend the functionality, the cam is designed with an additional working surface located about its diametrically main working surface. Information sources. Accepted in the examination. 1. USSR author's certificate No. 561075, cl. G 01 .B 5/30, 1975. 2 .. For the issue number 2735754 / 25-28, C.-G-Ol B 5/30, 1978 (prototype). Fug.