Servo press mounting device for monitoring press mounting force and displacement

Abstract

A servo press-mounting machine for monitoring press-mounting force and displacement pertains to a mechanical assembling device. The prior art has the defect that the press-mounting result needs additional detection equipment for detection. A power device provided by the present invention consists of a servo motor controlled by an embedded industrial control system and a drive piece matched with the servo motor in a transmission way; the drive piece is matched with a press-mounting head by screw thread; the press-mounting head is provided with a pressure sensor for sending signals to the embedded industrial control system and connected with a displacement sensor; the embedded industrial control system is connected with a display and a control keyboard. The present invention takes the servo motor as the source power, is equipped with the pressure sensor and the displacement sensor and takes the embedded industrial control system as the core of the control system. The machine provided by the present invention has the advantages of stable and adjustable pressining speed, accurate and convenient press-mounting force control and press displacement control, the real-time display of press-mounting force-displacement curve, qualification determination when in press mounting, scientific and diversified qualification determination ways, etc.

Description

technical field [0001] The invention relates to a mechanical assembly device, in particular to a servo pressing machine for monitoring pressing force and displacement. technical background [0002] Traditional press-fitting machines use motors, hydraulic components, and pneumatic components as drive units, and use programmable logic devices or other low-voltage electrical appliances to form control circuits. The operation functions are simple, and they do not have detection capabilities. It is difficult to realize the pressure control of the press-fitting machine driven by the motor, and the press-in displacement is usually realized by mechanical positioning, and the mechanical positioning usually has high requirements on the processing size of the workpiece, and the adjustment is not convenient enough, time-consuming and laborious; the press-fitting of hydraulic and pneumatic press-fitting machines The force can only be controlled indirectly by adjusting the pressure of hyd...

AI Technical Summary

Problems solved by technology

It is difficult to realize the pressure control of the press-fitting machine driven by the motor, and the press-in displacement is usually realized by mechanical positioning, and the mechanical positioning usually has high requirements on the processing size of the workpiece, and the adjustment is not convenient enough, time-consuming and laborious; the press-fitting of hydraulic and pneumatic press-fitting machines The force can only be controlled indirectly by adjusting the pressure of hydraulic oil or compressed air, and the control of the press-in displacement is basically realized through mechanical positioning.

Due to the leakage of the hydraulic pipeline after long-term use, the hydraulic press machine is easy to cause pollution to the work site and the workpiece

The traditional pressing machine has the following disadvantages: 1. It does not have the detection function of pressing force and pressing displacement, and the pressing result needs to be tested by additional testing equipment

2. It is impossible to detect the change of the press-fitting force with the change of the press-in displacement, and it is impossible to monitor the press-in process

3. Using mechanical positioning, it is difficult to accurately control the displacement of the press-in, and it is difficult to adjust

4. It is difficult to achieve precise control by controlling the pressure of the medium to achieve extensive control of the press-fitting force

5. It is difficult to adjust the pressing (returning) speed

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