1. Computer-controlled self-locking nut comprehensive performance testing machine use:
1. XLW series microcomputer controlled self-locking nut comprehensive performance testing machine is mainly used in the torsion performance test of self-locking nuts, stripped nuts, metal materials, non-metal materials, composite materials and components. It can also be used for high-strength self-locking nuts, nylon self-locking nuts, floating self-locking nuts, spring self-locking nuts, stainless steel self-locking nuts, titanium alloy self-locking nuts, pressure point self-locking nuts, tooth belly lock nuts, diameter Comprehensive performance testing and research on direction/axial lock nuts and special-shaped lock nuts. No tightening torque is applied to aluminum alloy nuts and copper nuts, and no tightening torque is applied to nuts of specifications ≤4mm. The machine is automatically controlled by a microcomputer, the test speed is continuously adjustable, and there is a torque-torsion angle test curve. It is widely used in industries such as factories and mining enterprises, aerospace, scientific research institutes, automobile transportation, and quality supervision.
2. Nut test test items:
1) Locking torque test, cyclic locking performance (>1500 times) test, nut screwing torque test, nut screwing torque test, maximum locking torque test, minimum locking torque test, installation torque test.
2) Unscrew test, minimum unscrewing torque test, push-out test, permanent deformation test;
3) Effective torque test, torque-clamping force test, clamping force test, yield clamping force test, ultimate clamping force test, tightening torque test, yield tightening torque test, ultimate tightening torque test, clamping torque Test, applied torque test.
4) Thread torque test, bearing surface friction torque test, torque coefficient test .
Two , computer control self-locking nut comprehensive performance test machine reference standard
JB/T9370—2007 "Technical Conditions of Torsion Testing Machine"
GB1339 "Small Hexagon Self-locking Nuts"
HB5643 "Self-locking Nut Test Requirements and Methods"
HB 7595-2011 Test method for MJ threaded self-locking nuts with service temperature not higher than 425℃
JBT6545-2007 All-metal spring clamp hexagon lock nut
TB/T 3102.1-2005 Curved ferrule type pipe joints for rolling stock Part 1: Lock nuts
TB/T 826-1991 lock nut Dalian Diesel Locomotive Research Institute
GB/T 889.1-2015 Type 1 non-metallic insert hexagon lock nut
GB/T 889.2-2016 Type 1 non-metallic insert hexagonal lock nut with fine pitch
GB/T 6183.1-2016 Type 2 non-metallic insert hexagonal flange lock nuts
GB/T 6183.2-2016 Type 2 non-metallic insert hexagonal flange lock nut with fine pitch
GB/T 6187.1-2016 Type 2 All Metal Hexagon Flange Lock Nuts
GB/T 6187.2-2016 Type 2 All Metal Hexagon Flange Lock Nuts with Fine Pitch
GB/T 6182-2016 Type 2 non-metallic insert hexagon lock nuts
GB/T 3098.9-2010 Mechanical properties of fasteners Effective torque type steel lock nuts
GJB3.1A-2003 "General Requirements for MJ Threads";
GJB3.2A-2003 "MJ threaded bolt and nut thread limit size"
HB8026-2002 "TC16 Titanium Alloy Hexagon Thick Self-locking Nuts";
HB8027-2002 "TC16 Titanium Alloy Hexagon Thin Self-locking Nut";
HB8051-2002 "MJ thread press assembly self-locking nut";
GB/T3098.9-"Effective torque type steel hexagonal lock nuts for mechanical properties of fasteners"/ISO 2320;
GB/T16823.3-2010 "Fastener Torque-Clamping Force Test"/ISO16047;
GJB 125.1～125.6 "Binaural Sealed Swimming Self-locking Nut";
Standard provided by the customer.
Third, the main technical indicators of the comprehensive performance testing machine for microcomputer-controlled self-locking nuts
Serial number |
Product number |
XLW-10 |
XLW-20 |
XLW-50 |
XLW-100 |
XLW-200 |
1 |
Maximum torque (Nm) |
10 |
20 |
50 |
100 |
200 |
2 |
Testing machine accuracy level |
Level 1 or 0.5 (precision level) |
||||
3 |
Torque measuring range |
2%-100%FS or 0.4%-100% (precision grade) FS |
||||
4 |
Relative error of torque indication (%) |
±1 or ±0.5 (precision level) |
||||
5 |
Torque resolution (Nm) |
0.01 |
||||
6 |
Minimum reading value of torsion angle (°) |
0.01 |
||||
7 |
Relative error of torsion angle indication (%) |
±1 |
||||
8 |
Test speed (r/m) |
1-5 |
||||
9 |
Effective test space (mm) |
0-200mm or negotiate |
||||
10 |
Host size (mm) |
950×330 × 1200 |
||||
11 |
power supply |
220V±10%，50Hz |
||||
12 |
Host weight (kg) |
125 |
||||
4. Microcomputer controlled self-locking nut comprehensive performance testing machine expansion function:
Nut torsion sample torsion meter, the torsion angle resolution is 0.0001° , which can automatically follow;
Environmental system : nut high and low temperature environmental test test ; high temperature locking torque performance test ; high temperature environmental test box;
Dynamic testing : dynamic testing of nuts .
