Jul 22,2019

The Significance and Application of Error-proof Technology in Automatic Assembly Line

Scientific Interpretation of Assembly Automation Transport Line

The so-called assembly automation transport line is the combination of objects with certain geometric shapes by handling, connecting, adjusting, checking and other operations.

From the point of view of creating product value, assembly automation transportation line process can be divided into two parts according to time: main automation assembly transportation line and auxiliary automation assembly transportation line.

The realization of automation is divided into the following steps:
(1) Automated assembly from parts
(2) Automated assembly with gradual expansion
(3) Fully automatic assembly and transportation line
(4) Fully automatic assembly and transportation line with adjustable speed

Variant flexible automatic assembly

Typical Joint Action Requirements

Insert, insert and rotate, fit, insert and lock, screw in, press in, take out, move, deform connection, through material flow connection, temporary connection.

Noun Interpretation

1. Functional tolerance: can be assembled together and achieve the required function allowed a deviation. The technical requirements of the parts shall be determined according to the assembly conditions and the role they should play in the running state.

2. Assembly automation process tolerance: This is the position and direction error caused by assembly machinery related to the operation process.

3. Complete Interchange Method: One assembly can be selected from spare parts. In any case, the required function can be achieved. This method is first used in the following cases: short tolerance chain, mass production in batches.

4. Group Exchange Method: Spare parts are grouped according to the scope of the project. Although the required mating tolerance is small, the manufacturing tolerance of the workpiece can be larger. Only parts belonging to the same group can be matched.

5. Equilibrium Compensation Method: The final tolerance accuracy is obtained through a compensation link, either by changing the size or by adding a compensator.

Definition of Error Prevention

Error Prool, also known as Fool Prool, originated from Shingeo Shingo, a Japanese quality management expert.

Error Definition

The errors in this paper refer to the causes and errors of assembly automation in the manufacturing industry due to the deviation between the production process and production expectation, resulting in product defects.

Error Consequences

Assembly automation production process errors, the consequences of many situations. This article only explains the manual operation.

1. Leakage of parts;
2. Misassembly of parts;
3. Non-standard operation;
4. Endangering personal safety.

Error-proof Measures

(1) Mechanical error-proof: product assembly attitude error-proof - > error-proof - > only one direction is allowed to be placed

(2) Sensor Error Prevention: Product Existence Detection - > Preventing Leakage

(3) Visual error prevention
Leakage Loading

(4) Tri-color lamp and buzzer: error prompt

(5) Guidance process error prevention: to prevent non-compliance with assembly process assembly.