3E642E – universal sharpening machine with hydraulic drive – purpose, use and advantages

3E642E – universal sharpening machine with hydraulic drive is a universal tool sharpening machine, designed for sharpening and finishing the most commonly used types of cutting tools. The equipment allows for the processing of milling cutters, conical drills and other tools made of tool steel, hard carbides and cermet materials, using abrasive, diamond or CBN discs.

Scope

3E642E – universal sharpening machine with hydraulic drive is used in metalworking shops, factories and tool reconditioning centers. It allows both sharpening and precision grinding of modern tools, including those made of ceramic-metal compounds, characterized by high temperature and wear resistance.

History and modernization

3E642E – universal sharpening machine with hydraulic drive replaced the older model 3D642E and is an improved version of the 3E642. The main difference is the hydraulic drive of the table, which ensures smooth movement and increases productivity. The model was initially discontinued in 1994, but later returned to the market due to high demand.

Operations performed

3E642E – universal sharpening machine with hydraulic drive can perform the following types of grinding:

• external cylindrical grinding;
• internal cylindrical grinding;
• flat grinding;
• sharpening multi-edged tools.

Operating principle

Tools can be sharpened by two main methods:

1. Advance on rotation

Material is removed from each tooth in turn. After the workpiece is rotated, the cycle is repeated. This method can be used manually or automatically.

2. Advance on each tooth

Each tooth is machined individually up to the stop. The disc is retracted after each cycle and the operation is repeated for the next tooth.

Construction features

• robust cast iron frame for stability and vibration reduction;
• hydraulic table drive without play;
• possibility of mounting a sinusoidal plate;
• dust extraction system for better working conditions;
• rotating the disk axis 360° horizontally;
• axial tilt: +20° / -40°;
• mechanized lifting and lowering of the grinding head.

Technological capabilities

3E642E – universal sharpening machine with hydraulic drive allows processing of parts with a diameter of up to 330 mm and a length of up to 1040 mm. Thanks to multiple accessories, the equipment can process practically any type of cutting tool.

Accessories and options

The machine can be equipped with over 38 additional devices, including:

• radius milling cutters;
• cylindrical grinding equipment;
• cooling systems;
• devices for clamping complex parts.

Available versions

• continuous control of disk speed;
• step speed control;
• closed steel guides;
• open cast iron guides.

Main advantages

• high processing precision;
• increased productivity;
• versatility in use;
• stability and durability;
• adaptability to various industrial applications.

Conclusion

3E642E – universal sharpening machine with hydraulic drive remains an effective solution for sharpening and grinding tools in the metalworking industry. Due to its robust construction and high flexibility, it is suitable for both production and reconditioning.

Main dimensions and mounting positions of the 3E642E sharpening machine

Arrangement of components of the 3E642E sharpening machine

Location of controls for the 3E642E sharpening machine

Control panel for universal sharpening machine 3E642E

I – Main control panel of the machine 3E642E

III – Left side control panel of the machine 3E642E

V – Right control panel of machines 3E642E and 3E642

List of controls of the 3E642E sharpening machine

1. Main panel of the machine
2. Rapid traverse handwheel
3. Fine cross feed engagement lever
4. Fine cross feed handwheel
5. Grinding wheel rotation frequency switch
6. Table stoppers
7. Table hydraulic cylinder disengagement button (3E642E)
8. Rotary table fixing screw
9. The central table fixing screw
10. Grinding head support fixing screw
11. Grinding head lifting handwheel
12. Table speed control valve (3E642E)
13. Longitudinal table travel handwheel
14. Electrical cabinet locks
15. Table movement handwheel from side posts
16. Side control panel
17. Automatic entrance
18. "Stop grinding wheel" button
19. "Start grinding disc" button
20. "Machine is on" light
21. Cooling or vacuum switch
22. Grinding wheel rotation direction switch
23. Grinding wheel rotation speed switch
24. "Full stop" button
25. Grinding head vertical movement button
26. "Start table" button (3E642E)
27. "Stop table" button (3E642E)
28. "Start hydraulic drive" button (3E642E)
29. "Hydraulic drive: on" lamp (3E642E)
30. "Cooling, vacuum" switch