Gear processing method four: gear shaping

Gear processing method XNUMX: The relevant instructions for gear shaping are as follows, for your reference and understanding, you can consult EP for free if you are unclear or related requirements.

First of all, gear shaping is a widely used method of tooth profile processing. It is one of the generative processing methods. Others include gear hobbing, gear shaving and gear grinding.

XNUMX. The principle of gear shaping is as follows:

1. In principle, the gear shaping process is equivalent to a pairSpur gearThe meshing.

2. See the left picture for the movement form of the workpiece and gear shaper.

3. The gear shaper is equivalent to a gear that grinds the rake angle and the back angle on the gear to form the cutting edge, and the gear blank is used as another gear.

4. When gear shaping, the tool makes high-speed reciprocating linear movement along the axis of the workpiece to form the main movement of the cutting process. At the same time, it also makes a gapless meshing movement with the workpiece to process all gear tooth profiles on the workpiece.

5. During the machining process, the tool only cuts out a small part of the tooth space of the workpiece every time it reciprocates. The tooth surface curve of the workpiece tooth space is composed of the envelope of the cutting edge of the gear shaper. See the right for details. Figure.

4. XNUMX movements of gear shaping:

1. Cutting movement.

2. Split teeth into motion.

3. Radial feed movement.

4. Let the knife move.

XNUMX. Features and applications of gear shaping:

1. The tooth profile error of the workpiece is smaller than the hobbing, that is, the tooth profile accuracy is higher than the hobbing, but the cumulative deviation of the tooth pitch is greater than the hobbing.

2. The surface roughness value and waviness value of the tooth after gear shaping are smaller than those of hobbing.

3. The movement accuracy of gear shaping is worse than that of gear hobbing, and the tooth orientation error is relatively larger.

4. For small module gears (under 2.5mm), gears with multiple teeth and narrow tooth widths, and single-piece thin gears, the processing efficiency of gear shaping is higher.

5. In general, for gears that do not require high motion accuracy, gear shaping can be used directly for tooth profile finishing, otherwise it is better to use gear hobbing.

6, can be processed outside the labor,Internal gear, Gears with shoulders, double gears, multiple gears, sector gears, herringbone gears, helical gears and racks, etc., but not worm gears.

The above is the gear hobbing related instructions shared by the EP editor today, including but not limited to, if you have more questions, you can consult our technicians for free. EP,Precision gear machining10 years of experience, with a full range of processing technologies such as gear hobbing, gear shaving, gear milling, gear grinding, gear shaping, etc., imported advanced equipment processing, perfect quality management to ensure high product quality, welcome to buy!