A multi-point servo adjustment system for a press slider

Abstract

A multi-point servo adjustment system and method for a slide block of a press. The invention relates to a press, in particular to a multi-point servo adjustment system for a slide block of a press. The utility model provides a multi-point servo adjustment system for a slide block of a press which is convenient to operate, improves the position accuracy of the adjusted slide block, and thus prolongs the service life. It includes a press body and a slider, the press body includes a beam, a column and a workbench, the beam and the workbench are respectively connected to the top and bottom of the column, and the slide block is slid along the column and connected to the beam and the workbench. Between the worktables, the beam is connected to the slider through a connecting rod; it also includes a controller and at least two sets of servo adjustment devices, at least two sets of servo adjustment devices are arranged on the slider to drive the slider to move up and down; the servo The adjusting device includes a servo motor and an encoder, the encoder is arranged on the servo motor, the encoder is connected to a controller, and the controller is used to control the servo motor. The invention is convenient for processing and reliable in operation.

Description

technical field [0001] The invention relates to a press, in particular to a multi-point servo adjustment system for a slide block of a press. Background technique [0002] The slider adjustment is an important part of the press, and its main driving method is that the motor drives the adjustment mechanism (nut-screw pair) through the reduction gear, thereby driving the slider to move up and down within a certain range. [0003] The principle of the currently commonly used slider adjustment device is: a single ordinary brake motor simultaneously drives two (or more) adjustment mechanisms through a reduction gear. [0004] But there are following problems: [0005] 1) There is no real-time feedback of the position of the slider. When the height of the mold is adjusted, the repeated positioning accuracy of the slider is not good after the slider is adjusted up and down, resulting in a discrepancy between the theoretical slider position and the actual position, which affects th...

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Problems solved by technology

[0005] 1) There is no real-time feedback of the position of the slider. When the height of the mold is adjusted, the repeated positioning accuracy of the slider is not good after the slider is adjusted up and down, resulting in a discrepancy between the theoretical slider position and the actual position, which affects the use effect and damages the mold;

[0006] 2) From the motor to the final adjustment mechanism, there must be a gap during operation, and the gap between each set of adjustment mechanisms is difficult to be absolutely consistent, which eventually leads to the asynchronous operation of the two (or more) adjustment mechanisms, making the sliding The block is tilted left and right (or front and back), which affects the accuracy and service life of the slider;

[0007] 3) Certain special stamping processes require the accuracy of the bottom dead point to be stable when the slider is in motion. Ordinary slider adjustment devices cannot provide real-time slider position, and cannot provide accurate and small adjustments, so that automatic bottom dead point of the slider cannot be realized. compensation function;

[0008] 4) When adjusting the mold, in order to prevent the damage of the adjustment mechanism due to excessive load, it is necessary to add an over-torque protection device. The common device is a mechanical torque limiter. The torque parameter adjustment is inaccurate, difficult to operate, and often cannot respond Real load torque, poor protection and expensive

[0009] To sum up, the currently commonly used slider adjustment devices for presses cannot fully meet the requirements of use.

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