Table tool

Abstract

The invention provides a table-typed tool, comprising a base (1), a workbench (2), a machine arm (3) and a working head (4). At least a group of slight adjusting transmission mechanism and locking device are arranged between the base (1) and the workbench (2) or between the machine arm (3) and the workbench (2); furthermore, the slight adjusting transmission mechanism is driven to rotate by a slight adjusting motor (5); each group of slight adjusting transmission mechanism and locking device comprise a motor protection device (9, 10, 11); when the locking device is in locking state, the motorprotection device (9, 10, 11) can avoid the overloading of the slight adjusting motor (5).

Description

technical field [0001] The invention relates to a bench tool, in particular to a bevel cutting machine. Background technique [0002] In desktop tools, there are usually two types of angle adjustments for working parts: manual and electric. For example, in the oblique cutting machine, the operator can manually adjust the workbench or the arm of the oblique cutting machine, so that the two can rotate in the horizontal direction or the vertical direction to achieve the inclination angle required by the operator. The standard that the operator is based on during the adjustment process is to refer to the scale marked on the workbench. After the above-mentioned working parts are rotated to an appropriate angle, they are then fixed by a locking device. Since the entire adjustment process is manually operated, the accuracy is poor. [0003] The problem of poor precision is solved in bench tools using motorized angle adjustments. Chinese Patent Application Publication CN1253866 ...

AI Technical Summary

Problems solved by technology

[0004] However, after using the fine-tuning motor, the safety of the fine-tuning motor is also a factor that needs to be considered

If after the working parts are rotated to the appropriate position, due to the operator's misoperation, the arm or workbench that has been locked and fixed by the locking device is driven by the fine-tuning motor to rotate, then the fine-tuning motor will output When the torque is blocked, it is easy to cause overheating damage and cause unnecessary losses

Although the usual motor itself also has the function of overheating protection, under the above circumstances, the torque of the fine-tuning motor has been kept in the output state, and mechanical loss is inevitable, and it may still be damaged.

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