RU1543687C - Method of controlling radial-forcing machine strikers offset relative to axis of forcing - Google Patents

Abstract

FIELD: plastic working of metals. SUBSTANCE: method involves effectuating control by relative offset of prints on control cylindrical billet; reducing control billet by cut strikers without rotating the billet, with strikers having flat faces and entrance inclined portions being used in the process; Reduction of billet is effectuated over a length at least equal to the length of entrance portion. In case one of strikers is offset relative to nominal position, prints on worked billet will have different lengths. Short print is obtained at the side, towards which the striker is offset. Method allows striker offset from nominal position to be detected and offset to be compensated. EFFECT: improved control process and reduced labor consumption for effectuating this control.

Description

 The invention relates to the processing of metals by pressure and can be used to control the accuracy of the manufacture of forgings by controlling the displacement of the strikers of the radial forging machine (RCM) relative to the forging axis.

 The purpose of the invention is to improve the quality of the control process and reduce its complexity.

 The method is as follows.

 The control workpiece with a diameter and length corresponding to the size of the machine being tested is inserted at one end into the gripper body of the manipulator and clamped. In addition to rolled steel, any plastic material that retains a cylindrical shape in a free state can be used as a workpiece material.

 Turn on the feed of the manipulator and bring the workpiece to the strikers. In this case, the workpiece is not rotated. Then the manipulator is switched to the working feed and the workpiece is introduced into the strikers, deforming it along the length of the striker's working profile. After that, the supply of the manipulator to the strikers is turned off, the breeding of the strikers and the withdrawal of the manipulator from the strikers are turned on. An imprint corresponding to the faces of the striker was obtained from each striker on the workpiece. On the blank against each print of the striker, the numbers corresponding to the numbers of the strikers are applied. After that, the workpiece is removed from the tick capture of the manipulator for control.

 In the event that the block is offset or rotated at a certain angle from the nominal position, then the prints on the processed workpiece will be of unequal length. A short print is obtained from the side to which the striker is displaced. The imprint length is determined by the inclined (so-called) part of the face of the striker.

 The unequal length of the prints shows the displacement of the striker from the nominal position. The numbers against the fingerprint indicate which of the n strikers is biased. The amount of displacement is compared with the reference forging and a decision is made on whether to correct or compensate for the amount of displacement.

 PRI me R. The method for controlling the displacement of the strikers was tested in the process of mastering the technological process and equipment in the manufacture of threaded pipes with calibrated holes. The control of the displacement of the strikers from the nominal position before forging on the RCM was carried out on the control cylindrical wax workpiece being processed for this. To do this, set the distance between the opposite strikers 1.0-2.5 mm less than the diameter of the control workpiece. Compressed the workpiece with notched strikers with flat faces having an inclined entry section. The prints on the blank turned out to be of unequal length.

 The unequal length of the prints showed the displacement of one of the strikers from the nominal position. The amount of displacement was compared with the reference forging and compensated for the displacement of the striker relative to the forging axis.

 Using the method for controlling the displacement of the strikers made it possible: to determine the total displacement of the striker, depending on the manufacturing errors of all components of the machines that affect the displacement; determine the admissibility of the displacement value by comparing with the standard forging, identify specifically which of the strikers has an displacement that is unacceptable in terms of obtaining high-quality forgings in order to correct or compensate for this displacement.

Claims (1)

 A method for controlling the displacement of the strikers of a radial forging machine relative to the forging axis, including controlling the accuracy of manufacturing forgings on it and subsequent correction of the displacement of the strikers depending on the results of the control, characterized in that, in order to improve the quality of the control process and reduce its complexity, controlling the accuracy of the displacement of the strikers is carried out on a control cylindrical forging according to the relative displacement of the prints on it obtained by compressing the forgings with notched strikers with flat faces having input e inclined sections, while prints are applied along the axis of the control forgings without its rotation on a length not less than the length of the lead-in section of the cut striker.