SU764748A1 - Automatic machine for checking by linear dimensions of precision components - Google Patents

Description

The invention relates to the field of measuring equipment, namely, automatic machines for controlling and sorting high-precision parts according to linear dimensions.

A known machine [1] for monitoring ^{1. The} linear dimensions of parts containing a measuring station, a device for inputting parts into a measuring station and an actuator mounted on a bed.

The error of the machine is greatly influenced by the deformation measured. station, resulting from the deformation of the bed. The cause of the deformation of the bed can be a redistribution of efforts as a result of the operation of various mechanisms of the machine, as well as thermal deformation’s and deformations from low-frequency vibration.

The aim of the invention is to improve the accuracy of control.

This goal is achieved by the fact that the known machine, comprising a bed, a measuring station, a device for introducing parts into a measuring station and an actuator, has a system of ball bearings 30, by means of which the measuring station is installed on the bed, and springs for power circuit located between measuring station and bed. The system of ball bearings consists of three balls, two conical, two prismatic and two flat surfaces, each of which is fixed on the measuring station and bed, respectively, with one ball placed between the conical surfaces, the other between the prismatic and the third between the flat. ·

The invention is illustrated in the drawing, where figure 1 shows a structural diagram of the machine; in FIG. 2 - section aa in figure 1.

The measuring station 1 of the machine is installed on the frame 2 using a system of ball bearings, consisting of * three independent supports. The support X is a spherical hinge joint located between two conical surfaces. This support deprives station 1 of three degrees of freedom. Support 4 - a ball between two prisms - deprives the station of two degrees of freedom. Support 5 - the ball between

764748.

two planes deprives the station of the last sixth degree of freedom. Power circuit is carried out by spring 6.

The upper parts of the supports are rigidly connected by station 1, and the lower parts are connected to the bed 2, on which the transporting disk 7 is mounted.

This allows you to completely protect the measuring station from deformation of the bed while maintaining the required rigidity of the connection.

With any deformation of the bed 2, displacements occur in each of the supports along the remaining degrees of freedom. Moreover, during translational displacements, only rolling friction is present, and rotational displacements have a small friction radius.

Therefore, the reactions in the supports remain unchanged and the measuring station is not deformed. . .

The invention improves the accuracy of the machine twice.

Claims (2)

The claims' 1.Automat for linear control; the size of high-precision parts, comprising a bed, a measuring station, a device for introducing parts into a measuring station, and an actuator, characterized in that, in order to increase the accuracy of control, it has a system of ³ ball bearings, by which the measuring station is mounted on a bed, and springs for power circuit located between the measuring station and the bed. . 2. The automatic machine according to claim 1, with the fact that the system of ball bearings consists of three balls, two conical, two prismatic and two flat supporting elements, each of which is fixed respectively on the measuring station and bed, when In this case, one ball is placed between the conical supporting elements, the other between the prismatic, 20 and the third between the flat ones.