Fully Automatic Joint and Disassembly Force Tester 2000 N

The Automatic Joint and Disassembly Force Tester is an essential testing instrument for quality control, incoming  inspection, physical property testing, mechanical performance research, and  material development. With additional fixtures, the machine can also perform compression and  bending tests. It features digital display of test force, continuously  adjustable test speed, automatic stop after specimen breakage, peak force  holding function, and other functions.

Application

This Fully Automatic Joint and Disassembly Force Tester is mainly used for testing the assembly engagement force and  disassembly separation force (tensile/compressive force) of various finished  products, components, plastic parts, metal connectors, medical device joints,  packaging components, and other products. It is designed to evaluate the opening  and closing durability, assembly/disassembly force, and structural strength of  snap-fit structures, rotating shafts, and hinge mechanisms.

Standards

(1)ISO 7500-1 — Metallic Materials — Verification of Static Uniaxial Testing Machines

(2)ASTM E4 — Standard Practices for Force Verification of Testing Machines

(3)ASTM D638 — Standard Test Method for Tensile Properties of Plastics

(4)ASTM D695 — Standard Test Method for Compressive Properties of Rigid Plastics

(5)ISO 527 — Plastics — Determination of Tensile Properties

(6)ISO 604 — Plastics — Determination of Compressive Properties

(Specific standards depend on the tested product and customer requirements.)

Technical Parameters

Function

1. Automatically calculates the corresponding force value based on  displacement.

2. Automatically switches to the appropriate measuring range according to the  test force level, ensuring the accuracy of measurement data.

3. Automatic Display:

During the entire testing process, the system displays the real-time test  force, peak force, and test status.

4. Automatic Control:

After inputting the test parameters, the system can automatically complete  the entire testing process.

5. Breakage Detection:

After specimen breakage, the moving crosshead automatically stops moving.

6. Limit Protection:

Equipped with dual limit protection functions, including mechanical limit  protection and software-controlled travel limit protection.

Software Introduction

1. High-Precision Force Sensor:

Measuring range: 0–2000 N.

Force measurement accuracy: within ±1%.

2. Main Controller:

The main controller adopts a 32-bit ARM processor, with processing  performance reaching the level of a Pentium-class general-purpose computer.  Compared with traditional measurement and control systems, the overall  performance is significantly improved, providing faster calculation speed and  higher control accuracy.

3. Drive System:

Servo motor and precision ball screw drive system.

4. Control System:

Provides precise speed control within the range of 0.1–500 mm/min. Equipped  with fast coarse adjustment and slow fine adjustment functions. After testing,  the system can automatically return to the original position and automatically  save test data.

5. Data Transmission Method:

RS232 communication interface

6. Display Method:

Test results are displayed on the computer screen through WIN-XP testing  software.

7. Testing Software Functions:

The test interface software supports multiple control modes, including:

Constant speed control mode

Constant displacement control mode

Constant load control mode (with adjustable holding time)

Constant load increase rate control mode

Constant stress increase rate control mode

Constant strain increase rate control mode

Multi-stage control mode

These functions can meet various testing requirements.

8. Safety Devices:

Equipped with:

Overload emergency stop device

Upper and lower travel limit protection device

Automatic breakpoint stop function

Features

1. Equipped with a high-precision, fully digital speed control system and  precision reduction gearbox, which drives the precision ball screw mechanism to  perform testing. The test speed can be adjusted over a wide range, ensuring low  noise operation, smooth running, and stable performance during the testing  process.

2. The universal joint adopts a cross-pin structure and is equipped with an  angle limitation function. On one hand, it facilitates specimen clamping and  ensures testing concentricity; on the other hand, it effectively reduces the  influence of irregular specimens on the force sensor.

3. The machine adopts an easy operation mode with a LCD display for real-time  monitoring. The display interface can show the test method selection interface,  test parameter setting interface, test operation and result display interface,  and curve display interface, providing convenient and efficient operation.

4. The machine allows fast and slow adjustment of the crosshead movement  during specimen clamping and is equipped with overload protection and other  safety protection devices.

5. With an optional computer interface, the machine can be connected to a  computer for test process control, data storage, and printing of test  results.

FAQ

(1)What products can be tested with this equipment?

The tester is suitable for components requiring assembly and separation force evaluation, including plastic parts, metal connectors, medical joints, packaging structures, automotive clips, and snap-fit assemblies.

(2)What test results can the system provide?

The system can measure maximum force, breaking force, displacement, elongation, holding force, and force-displacement curves, helping users evaluate structural strength and assembly performance.

(3)Can this tester perform tests other than joint force measurement?

Yes. With suitable fixtures, the system can also perform tensile, compression, and bending tests to evaluate different mechanical properties of components.

(4)How does the equipment improve testing efficiency?

The fully automatic control system reduces manual operation. After parameters are entered, the machine can complete testing, calculate results, save data, and generate reports automatically.

(5)How can measurement accuracy be maintained during long-term use?

Regular calibration of the force sensor, proper maintenance of the transmission system, and inspection of fixtures help maintain stable accuracy and repeatable test results.