PRODUCTION OF SPRING WASHERS, GROOVERS
A spring washer, also known as a grover, is a split washer designed to function as a locking element, preventing the self-unscrewing of threaded connections. This component is utilized in connections where ensuring a secure fixation of connected structural elements is crucial, particularly under conditions of significant vibration.
The grover is a metal part structurally shaped like a ring, cut at an angle. Its ends feature sharp edges slightly spread out to the sides. During installation, the grover is positioned between the mounting surface and the nut. As the nut is tightened, the sharp edges cut into its surface, ensuring a reliable fastening.
Spring washers are manufactured in accordance with the DIN 127 standard using spring-hardened or stainless steel grades. Additionally, materials such as bronze, aluminum, and Monel metal are employed.
Split spring washers find widespread use in instrument making, mechanical engineering, the automotive industry, and various other sectors.
The production of these bushing washers often employs spring-coiling automatic machines. Such equipment facilitates a complete technological cycle for producing spring washers in compliance with standards like DIN 127, DIN 128A, DIN 128B, DIN 6913, and DIN 7980.
The productivity of this equipment depends on the size of the manufactured grovers and ranges from 400 pcs/min to 1000 pcs/min (refer to the video).
CNC SPRING-COILING MACHINE FOR THE PRODUCTION OF SPRING WASHERS RG-35
Features of equipment for the production of grover washers
- The machine axes can operate either synchronously or independently of each other, depending on the control program.
- The computer equipment control interface is available in Chinese and English.
- The spring winding equipment has a right- and left-hand winding blade.
- Taiwanese computer controller and Japanese servomotors.
- The machine allows you to produce debugging samples manually.
Technical characteristics of the machine for the production of groover washers RG-35
| Wire diameter | Ø1.5 ~ Ø3.5 |
|---|---|
| Maximum outer diameter of spring washer | Ø50 mm |
| Number of CNC controlled axes | 3 axes (wire feed / cams / spring pitch setting) |
| Max wire feed speed | 100 m/min |
| Wire Feed Setting Value | ± 0.01 ~ ± 9999.99 mm |
| Cam installation size | ± 0.1 °C ~ ± 359.9 °C |
| Number of feed rollers | Two pairs |
| Wire feeder servo motor power | 5.5 kW |
| Cam servo motor power | 5.5 kW |
| Spring pitch servomotor power | 1 kW |
| Dimensions (L×W×H) | 1150 mm × 1535 mm × 2000 mm |
| Machine weight | 1060 kg |
| Power supply | 3-phase 380V/50Hz |
| Servomotor manufactured by Sanyo (Japan) | |
| Computer made by Hust (Taiwan) | |
Technical characteristics of wire unwinder RG-35A
| Feeder Diameter | 1100 mm |
|---|---|
| Load Capacity | 300 kg |
| Rotation Speed | 100 m/min |
| Motor Power | 1.1 kW |
| Equipment Weight | 200 kg |
| Power Supply | 220V/50Hz |
| Packing Size | 1180 mm × 780 mm × 1280 mm |
Video of equipment operation
CNC spring winding machine for the production of lock washers
Automatic machine for the production of growers 970 pcs/min
EQUIPMENT FOR PRODUCTION OF SPRING WASHERS (GROVER)
| Model | RG-10 | |
|---|---|---|
| Material | 22K & S45C | SW-57A |
| Specification | 8 mm, 10 mm, 12 mm is used for screws | 6 mm, 8 mm, 10 mm is used for screws |
| Engine power | 3 HP | |
| Dimensions of equipment | 142 × 112 × 140 cm, 920 kg | |
| Dimensions RE.unit + water cooling tank | 65 × 54 × 115 cm, 150 kg | |
| Dimensions of wire pay-off stand | 155 × 142 × 80 cm, 395 kg | |
- Material Wire: wire springs made of steel.
- Flattening is carried out by feed handwheel.
- Flattering process, winding, cutting and forming of washers is performed at the same time.