The working principle of the gear grinding machine, the working principle of the grinding machine

You're a research machine.

A-axis. The y-axis is geared.

The Z-axis is used to adjust the wheelbase of the A-axis and Y-axis.

After adjusting, the y-axis rotates.

Apply red powder to one of the gears and you will be able to see the contact zone.

A grinding machine is a grinding machine that grinds the surface of a workpiece with a grinding tool coated with or embedded abrasive.

The main categories of grinders:

Disc grinder: divided into single disc and double disc two species, with the double disc grinder being the most common. On a double-disc grinder, a plurality of workpieces are placed in a cage located between the upper and lower grinding discs at the same time, and the cage and the workpiece move in parallel by an eccentric or planetary mechanism with an action plane.

The single-disc grinding machine has only one lower grinding disc, which is used to grind the lower plane of the workpiece, which can make the workpieces of different shapes and sizes processed on the same disc with high grinding accuracy. Some grinders also have a mechanism that automatically corrects the grinding disc during the grinding process. Shaft grinder:

The workpiece or grinding tool (adjustable grinding ring or grinding rod) is driven by the spindle of forward and reverse rotation to rotate, and the structure is relatively simple, and it is used for grinding inner and outer cylindrical surfaces. Special grinding machine: according to the different workpieces to be grinded, there are center hole grinding machine, steel ball grinding machine and gear grinding machine.

Centerless grinding machine: used for grinding cylindrical workpieces.

How to grind the internal grinding machine tool for the inner hole of the gear, hello dear, <>

1: Adjust the first contact point according to the inner diameter of the workpiece, adjust the position according to the taper, and grind until the size of both ends is consistent. 2：

The outer diameter of the grinding wheel used for large inner hole is about 50-60% of the inner diameter of the workpiece. 3: The speed of the workpiece needs to be adjusted according to the size of the inner hole, for example, grinding 5mm hole may require 5-80,000 revolutions of the spindle, and grinding 150mm inner diameter of 8000-15000 revolutions is basically OK, the rotation degree is not fixed, the outer diameter of different grinding wheels with the same speed linear speed nanosensitivity is not the same, the rotation of the general grinding head must have a linear speed of 35m s in order to have a good grinding effect of hidden branches.

The working principle of gear grinding machines is divided into two categories: the shape method and the expansion method (see gear machining). There are four types of gear grinding machines that are processed according to the development method, depending on the shape of the grinding wheel.

Disc grinding wheel gear grinding machine: the narrow edge of the two rotating disc grinding wheels is equivalent to the two tooth surfaces of the rack, the workpiece is developed into motion by rolling disc and steel belt, and the worktable reciprocates along the axial direction of the workpiece to grind out the entire tooth width. After grinding each tooth, the teeth are divided by the indexing head frame through the indexing plate.

This machine can also be used to grind helical teeth with additional devices. If a grinding wheel is inserted into the internal gear, the internal gear can be grinded. This kind of machine tool is generally a horizontal layout, and a vertical layout is used when the processing diameter is greater than 1 meter, with an accuracy of up to 4 levels, which is suitable for grinding high-precision gears.

Cone grinding wheel gear grinding machine: the axial profile of the grinding wheel is trimmed into a tooth shape of the rack, and a straight reciprocating motion is made along the tooth direction. The workpiece completes the expansion and indexing motion through the worm gear, the lead screw and the exchange gear, but also uses the rolling disc and steel belt for the expansion motion, and the worm gear pair or the indexing plate is used for the indexing motion (see color map).

Helical gears can be ground when the grinding wheel frame is turned at an angle according to the helix angle of the workpiece. This kind of machine tool is easy to adjust, has good versatility, is suitable for single-piece batch production, and is widely used.

Worm grinding wheel gear grinding machine: the principle is similar to the gear hobbing machine, the grinding wheel is a large-diameter single-head worm (see worm transmission) shape, each rotation of the grinding wheel, the workpiece turns a tooth, its transmission ratio is accurate, some are driven by mechanical transmission, some are driven by synchronous motors, and some are driven by gratings and servo motors. During grinding, the workpiece makes a feed motion in the axial direction (see machine tools) to grind out the entire tooth flank.

The grinding wheel is turned with a diamond turning tool or rolled into a worm shape with a rolling wheel. The machine tool is a vertical layout, continuous indexing, high grinding efficiency, suitable for processing gears of medium modulus in batch production, especially suitable for gears with many teeth, and the accuracy can reach 4 grades.

Large-plane grinding wheel gear grinding machine: the working plane of the grinding wheel is equivalent to a tooth surface of the rack, and the involute template (there are also steel belts and rolling discs) is used to generate the expansion motion. The grinding wheel and the workpiece do not make the axial reciprocating motion of the workpiece, and after grinding out one side of the tooth surface, use the index plate to divide the teeth, and grind out all the tooth surfaces in turn.

Then the workpiece is turned around and the other side of the tooth surface is grinded. The machine tool is a horizontal layout, with simple structure, stable performance and an accuracy of up to 3 grades, which is mainly used for grinding gear shaping cutters, shaving cutters and measuring gears for measurement.