Electric Tightening Module Overview

This document provides an overview of an Electric Tightening Module designed for screws below M4 size, particularly suited for aluminum-copper mechanical teeth and sheet metal products without bottom support structures. The module supports self-tapping screws and is compatible with various heights, enabling savings on electric cylinders and Z-direction moving mechanisms.

Product Structure and Components

• Screw Driver Controller: Integrates servo drive for torque and angle control.
• Control Parameters: Speed, displacement, and downforce are precisely controlled.
• Nozzle and Guide Sleeve: The front-end guide sleeve is required depending on vacuum working conditions.
• Executive Mechanism: Includes screw blowing tube, ring sensors, screw driver bit, blow screw, vacuum, and pick vacuum options.

Control and Monitoring Features

The module uses a PLC for comprehensive information interaction, enabling all-factor interactive control and real-time monitoring of speed, displacement, torque, pressure, and time. It integrates with an intelligent screwdriver to detect abnormal tightening conditions such as floating screws, sliding teeth, and missing screws, preventing defective product outflow.

Downforce control is highly accurate to avoid impact and screw thread damage during tightening. The screw suction tube's avoidance height is flexibly controlled and can stop at any position within its travel range, ensuring wide compatibility.

Performance and Efficiency

• Servo Electric Drive Control: Increases screw feeding speed significantly compared to traditional modules.
• Energy Efficiency: Reduction in pneumatic components and air consumption, with vacuum modules requiring only vacuum air and brake air supplied by the customer, contributing to factory energy saving and emission reduction.
• High Precision and Efficiency: Enables high precision control and efficient tightening processes.
• Green and Energy Saving: Designed to reduce energy consumption and environmental impact.

Operating Parameters and Conditions

The module supports various tightening conditions characterized by combinations of pressure, speed, and torque:

• Low pressure with high speed
• Low torque with micro pressure and low speed
• Low torque with low pressure and high speed
• High torque with medium pressure and high speed

Typical monitored parameters include speed (mm/s), location (mm), pressure (N), and torque (N-m) during stages such as initial access hole, contact with mechanical teeth, entering mechanical teeth, and seating surface.

Product Model Description

The product model naming convention includes:

• Product Category: TME (Electric Tightening Module)
• Nozzle Type: NM (Normal), ST (Swivel Tube), or no nozzle
• Propulsion Series: PV (Stepless propulsion)
• Stroke of Bit: Various lengths denoted as Bxx
• Torque Range: Specified ranges in N·m
• Nose Piece Length: Lxx/Lxx for Blow Screw, Lxx for Vacuum
• Screw Type: S (Screw), H (Hexagon head)
• Module Type: BS (Blow Screw), NV (Vacuum), PV (Pick Vacuum)
• Stroke of Vacuum Tube: Kxx for Blow Screw, Hxx/Hxx/Hxx for Vacuum

Product Advantages

• Highly integrated module with servo drive and PLC control.
• Real-time monitoring and abnormal condition detection to ensure product quality.
• Energy-saving design reducing pneumatic components and air consumption.
• Flexible compatibility with various screw types and heights.
• Accurate downforce control to prevent damage during tightening.

Notes

Detailed specifications and exact performance data are available upon request. The attached drawings are for reference only and should not be used as definitive specifications.