Horizontal Tightening Machine for Submersible Pump Outlet Connector -

This horizontal tightening machine is specially used for fastening the outlet connector of submersible pumps. It adopts servo or pneumatic drive to realize stable and accurate torque control, ensuring reliable sealing and assembly consistency. Featuring horizontal clamping, precise positioning and automatic operation, it greatly improves efficiency and replaces manual work. It is widely used in submersible pump assembly lines for stable and efficient tightening production.

Description & Introduction

The horizontal tightening machine for submersible pump outlet connector is a special automatic equipment designed for accurate, efficient and stable tightening between the submersible pump outlet and connector. It mainly solves problems such as uneven torque, low efficiency and unreliable sealing caused by manual tightening, and is suitable for batch assembly lines of submersible pumps.

1. Core Definition & Application

Definition: Horizontal structure, driven by servo, applies controllable torque to the submersible pump outlet connector to realize reliable connection and sealing between the pump body and outlet.
Main Applications:
- Submersible pump assembly: Tightening of outlet
- Maintenance & remanufacturing: Reassembly of pump body and outlet connector
- Applicable pumps: deep well pumps, etc.

2. Horizontal Structure & Main Components

The machine adopts a horizontal layout (workpiece placed horizontally or conveyed), mainly composed of modules: frame, clamping and positioning system, tightening execution unit, power transmission system and control system.

2.1 Frame & Base

Horizontal slide rail or workbench for horizontal clamping and conveying of pump body
Adjustable feet for different workshop floors

2.2 Clamping & Positioning System (Key Part)

Pump clamping: block + pneumatic/hydraulic clamping, suitable for various diameters without damaging the shell
Connector positioning: Special fixture to fix connector and prevent slipping or deflection during tightening
Axial limit: Positioning block to ensure coaxiality and proper fitting between connector and pump outlet

2.3 Tightening Execution Unit (Core Part)

Tightening spindle/head: Servo tightening spindle (mainstream), hydraulic motor or pneumatic wrench with torque sensor
Special collet: Matched with the shape of the connector
Feeding mechanism: Servo/cylinder-driven horizontal feeding to realize positioning → fitting → tightening → retracting

2.4 Power & Transmission System

Servo drive (high precision): Servo motor + planetary reducer + torque sensor
Hydraulic drive (high torque): Hydraulic motor + torque valve, suitable for large-caliber and high-torque applications
Pneumatic drive (economic type): Pneumatic motor + torque limiter, low cost and easy maintenance

2.5 Intelligent Control System

PLC + touch screen: Parameter setting and process monitoring
Dual control of torque & angle: Automatic stop when target is reached to prevent over-tightening or under-tightening
Alarm function: Automatic stop and alarm for over-torque, slipping, incomplete positioning or overtravel
Data traceability: Records torque, time, operator

2.6 Safety & Auxiliary Functions

emergency stop, Lubrication, cooling
Can be connected with assembly line for automatic loading and unloading

3. Standard Working Process

Loading & positioning: Submersible pump is fed horizontally and clamped
Connector installation: connector is placed at the pump outlet and fixed
Tightening head feeding: Moves horizontally to engage with the connector
Automatic tightening: Tightens according to set torque
Retracting & inspection: Tightening head retracts, system judges OK/NG
Unloading: Clamp released, pump flows to next process

4. Core Advantages

Precise torque: Closed-loop control ensures reliable sealing and eliminates leakage or loosening
High efficiency: 3–5 times faster than manual operation
Stable quality: High consistency, reduces defect rate
Labor saving: Reduces manual fatigue and intensity
Data traceability: Meets quality system requirements
Horizontal structure: Safe operation and convenient positioning

5. Selection Guidelines

Match torque according to maximum tightening torque of the connector
Choose servo type for high-precision sealing; hydraulic/pneumatic for general applications
Confirm clamping and stroke according to pump diameter, length and weight
Select manual, semi-automatic or fully automatic mode based on automation level
Choose corresponding protection grade for humid, dusty or explosive environments