Do you know what the dots on the knife handle are for?

Release date:

2025-08-06

Dynamic Balancing, CNC Tool Holders, Inspection

I. Definition and Essence of a Point

The points on the knife handle are commonly referred to as balance points or correction points. They serve as critical markers during the knife handle's dynamic balancing test and correction process. Essentially, these points indicate where the handle is unbalanced, allowing operators or equipment to perform targeted adjustments for optimal dynamic balance.

II. Main Functions of the Point

(1) Indicate the imbalanced position

During the dynamic balancing test of the knife handle, the imbalance amount and its corresponding location can be detected using a dynamic balancing machine—these specific points are then marked to indicate where the imbalance occurs. For instance, if the test reveals an imbalance in a particular direction, a mark is placed at the exact spot along that axis. Based on this marked position, operators can apply either a weight-reduction or weight-addition method to correct the imbalance effectively.

(II) Auxiliary Correction Operations

For tool holders corrected using the weight-reduction method, the balance mark can indicate where material needs to be removed. Operators can then carefully remove an appropriate amount of material—such as by drilling or milling—in the area corresponding to this mark, effectively counteracting any imbalance. Alternatively, with the weight-addition method, operators can add counterweights directly opposite the marked spot to achieve dynamic balance correction.

(III) Facilitates subsequent testing and maintenance

After the knife handle has been used for a period of time, dynamic imbalance may reoccur due to wear, damage, or other factors. In such cases, the balance marks previously applied can serve as a valuable reference for subsequent dynamic balancing tests, helping to quickly identify areas where imbalance might occur and ultimately improving the efficiency of inspection and maintenance efforts.

In short, the dots marked on the tool holder are crucial indicators closely tied to dynamic balancing performance. They play a key role in pinpointing imbalance locations, aiding correction procedures, and facilitating future maintenance—making them essential for ensuring the tool holder functions properly and maintaining high-quality machining results.

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