Full-automatic numerical control screw tap thread grinder

Abstract

The invention belongs to the technical field of grinders, and relates to a full-automatic numerical control screw tap thread grinder. A rear support plate moving along a longitudinal slide rail is arranged at the rear side of a work table of a grinder base, a grinding wheel spindle is arranged at the front side of the rear support plate, driven by a power device to rotate and provided with a screw tap relief-grind grinding wheel, a sliding block moving along a vertical slide rail is arranged on the portion, located at the rear side of the grinding wheel spindle, of the rear support plate, and a diamond wheel is installed on a diamond rotating shaft arranged on the sliding block; a front support plate moving transversely is arranged at the front side of the work table, a swing tray is hinged to the front support plate, an indexing workpiece clamp is arranged at one side of the swing tray, a tailstock centre moving along a transverse slide rail is arranged at the other side of the swing tray, a swing shaft driven by the power device to rotate and a cam installed on the swing shaft are hinged to the front side of the front support plate, and actions of the power device are controlled by a controller program. The full-automatic numerical control taped thread grinder has the advantages that the screw tap relief-grind grinding wheel is high in finishing accuracy, clamping frequency is reduced, the accuracy and efficiency of screw tap machining are improved, and the grinder is applicable to the field of full-automatic numerical control screw tap thread grinders.

Description

technical field [0001] The invention belongs to the technical field of grinding machines, in particular to a fully automatic numerical control tap thread grinding machine. Background technique [0002] With the rapid development of CNC machine tools, the requirements for thread tools are getting higher and higher. As the main tool for thread hole processing, the tap occupies a high proportion in thread processing. The geometric accuracy of the tap is directly reflected in the processed workpiece. Therefore, the requirements for machine tools for processing tap threads are extremely high. Taps are industrial consumables with a large amount of use, and there are also high requirements for the processing efficiency of machine tools. [0003] At present, most of the thread processing equipment used by domestic tool factories are still manual or semi-automatic equipment, which has low production efficiency, high labor intensity, harsh environment, and grinding fluid has a great i...

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Problems solved by technology

[0003] At present, most of the thread processing equipment used by domestic tool factories are still manual or semi-automatic equipment, which has low production efficiency, high labor intensity, harsh environment, and grinding fluid has a great impact on the human body and the environment. At present, some enterprises are developing CNC thread grinding machines. When processing taps, frequent relief grinding actions are required, and the screw rod frequently works in one area, which intensifies the wear of the screw rod, resulting in a rapid decline in the accuracy of the machine tool. Frequent replacement of the screw rod will bring great cost and inconvenience to customers. In addition, the dressing wheel of the tap removal grinding wheel is arranged on one side of the tap removal grinding wheel. When dressing is required, the dressing wheel should be rotated to the top of the tap removal grinding wheel, and the axes of the dressing wheel and the tap removal grinding wheel are parallel to each other. Due to the difficulty in adjusting the axis parallelism between the whole grinding wheel and the tap relief grinding wheel, the dressing accuracy of the tap relief grinding wheel is low, which directly affects the dressing quality of the tap relief grinding wheel

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