How Erowa fixtures work

Positioning piece, electrode chuck, pull nail, positioning pile form a set of usable fixtures

Steps for usage:

1. Put the erowa jig vertically up. When the jig is not locked, the four hexagonal nails of the electrode holder do not completely fit the chuck reference surface.

2. When the erowa clamp is locked, the four hexagonal nails of the electrode holder completely fit the reference plane, and the positioning piece under the electrode holder will be deformed flexibly, thus playing a role

3. Why the deformation of the positioning piece can produce high precision? Because the centering tolerance of the positioning piece and the tolerances of the four rectangular holes are within ± 0.002mm, the repeated positioning tolerance of the erowa fixture is guaranteed.

4. Before each erowa fixture is shipped, the inspector will adjust it to ensure that the tolerance is within ± 0.002mm. When the workpiece is mounted on the electrode holder for processing, the flatness of the workpiece from the gong is also ± 0.002mm Within.

5.在鎖緊erowa夾具過程中，先裝好拉釘并鎖緊，然后垂直輕放到定位座上并鎖緊；當鎖緊時鋼珠會頂到拉釘環，借助拉釘環的斜面產生向下的壓力，從而鎖緊電極座。

erowa fixture principle

The prismatic positioning teeth of the chuck are inserted into the holes of the positioning plate and are pre-positioned; after clamping, the positioning plate is elastically deformed, and the line contact and the flexible deformation form a stable friction connection together, so that a flexible positioning plate and a rigid positioning rib are formed Positioning accuracy.

The positioning piece and the positioning prism are only in contact with one line, and it is this point contact that ensures the accuracy of 0.002mm. Moreover, the flexible positioning piece sweeps away the chips, and the minimized contact surface minimizes the influence of chips and particles.

erowa fixture self-locking principle

The ball locking device with self-locking function can produce a clamping force of 6000N, and will not open when the pressure is lost.

erowa fixture self-cleaning function

To ensure accuracy, there must be no swarf and dirt. The compressed air blows the surface of the support foot (2) immediately before clamping each time.

I do n’t know if you understand the principle of the erowa fixture. If you do n’t understand, read it a few times! How much profit has such a good fast positioning fixture brought to the enterprise, this is why everyone uses it!