SU1349860A1 - Arrangement for determining the efforts when rolling thread in automatic machine of roller-segment type - Google Patents

Abstract

The invention relates to thread rolling equipment, namely, means for determining the magnitude and direction of technological forces during knurling on roller-segment type threading machines. The purpose of the invention is to simplify the determination of the radial component and the inclination angle of the resultant rolling forces. The device contains installed in the base frame 2 and an additional 4 shafts. On the main shaft having a rotational drive, a knurled roller 1 is rigidly fixed, equipped with a sensor of its angle of rotation, and also a sensor of rotation of the workpiece during the process of knurling. On the additional shaft, the lever 8 is rigidly fixed with an elastic element 11, which has the ability to interact with the workpiece 9 during knurling, and sensors 6 and 7 of the knurling forces are located. After the workpiece is fed into the gap between the knurling roller 1 and segment 12, it rotates into this gap, while registering its position relative to the segment and the angle of rotation of the knurling roller 1. At the same time, the lever 8, in contact with the workpiece, rotates the additional shaft with sensors effort and that way. The position of the sensors with respect to the workpiece is kept constant throughout the rolling process, which simplifies the determination of the radial component and the angle of the resultant rolling forces. 3 silt (/ С

Description

The invention relates to thread rolling equipment, namely to means for determining the magnitude and direction of the technological forces arising during the knurling operation.

The purpose of the invention is to simplify the determination of the radial component and the inclination angle of the resultant rolling forces.

Fig, 1 shows the proposed device, a longitudinal section; in fig. 2 - the same, cross cut; in fig. 3 is a view A of FIG. one.

The device includes a knurled roller 1, rigidly mounted on the main shaft 2, which has a drive (not shown). With the main shaft 2 through the bearing unit 3 is connected an additional shaft 4. The ends of the shafts, opposite the bearing unit, are mounted on bearings 5 in the frame of the machine. Radial-force sensors 6 are located on the additional shaft 4, tangential forces sensors 7 and lever 8 are rigidly fixed, which, when the device is in operation, contacts its end with the rolled workpiece 9. Lever 8 has means 10 for adjusting the angular position relative to shaft 4 and is provided with an elastic element 11, for example in the form of a torsion spring. On the segment 12, the sensor 13 of the angular position of the product of a known type is mounted, and the body 14 of the sensor of the angle of rotation of the knurling roller is mounted. The sensor may include, for example, an obturator 15 mounted on a knurled roller, an illuminator 16 with power and amplification means (not shown).

The device works as follows.

Instruments prepared for measurement are connected to strain gauge equipment (not shown), turn on a rotary drive 2, while the shaft 4 remains stationary, as the lever 8 is held by the elastic element 11 in the initial position, and the bearing assembly 3 provides for breaking the kinematic connection -. 1 and 2 and 4. The workpiece 9 is fed to the machining position and, rotating, is carried by the knurling roller 1 into the gap between it and the segment 12. In the process of thread rolling, the angular position of the workpiece 9 relative to the knurling roller changes. This. :: geek corresponding to a specific point on the working part of segment 12 is recorded using sensor 13. Together with

By changing the angular position of the workpiece 9, the lever 8 rotates, which is in constant contact with it, while the lever 8 rotates the shaft 4 with the radial and tangential force sensors, and thus the position of the sensors relative to the workpiece during the knurling process remains constant. Based on the sensor readings, the magnitude and direction of the resultant knurling forces are determined. When the knurling roller 1 rotates, the shutter 15 rotates, blocking the beam of light supplied from the illuminator 16 to the photodiode 17, and as a result, the recording unit receives a characteristic of 5 changes in time of the angle of rotation of the knurled roller. The means 10 for adjusting the position of the lever 8 relative to the shaft 4 are used when adjusting to a different diameter of the workpiece.

0 Due to the fact that the lever 8 provides rotation of the shaft 4 with the sensors 6 and 7 efforts in strict accordance with the movement of the workpiece 9 in the running-in process, in the device extension 1, en & determination of the radial component and the inclination angle of the resultant rolling forces.

Claims (1)

Invention Formula A device for determining the forces , rolling a thread on an automatic roller-segment machine comprising a frame carrying a knurled roller, a shaft mounted in the rotation guides and connected to the drive, a fixed rolling segment, torque sensors, deformation forces, the angle of rotation of the roller and the workpiece being rolled The strain-force sensors are located in mutually perpendicular planes intersecting along the axis of rotation of the shaft, characterized in that, in order to simplify the determination of the radial component and the angle of inclination of the resultant reinforcement rolling, it is equipped with an additional shaft, which is coaxial with the main shaft, connected with it by means of a bearing and carrying a lever, which is spring-loaded in the direction opposite to the rotation of the main shaft during rolling and is designed to contact the rolled workpiece, while the deformation force sensors are mounted on the additional shaft and are oriented relative to the lever. 1Z f2 r-fo Phage .. Fig.Z