Rotary clamping assembly

Abstract

The invention relates to a rotary clamping assembly. The rotary clamping assembly comprises a rotary shaft, a fixed part, a pressing block and a pressing cylinder. The fixed part is fixed to the rotary shaft and used for fixing a machined part. The pressing cylinder and the rotary shaft are arranged coaxially. A piston rod of the pressing cylinder faces the rotary shaft. The pressing block is fixed to the piston rod of the pressing cylinder through a bearing. A gap is formed between the pressing block and the fixed part. According to the rotary clamping assembly, through arrangement of the rotary shaft, the fixed part, the pressing cylinder and the pressing block, the pressing block is fixed to the piston rod of the pressing cylinder through the bearing; the machined part is pressed onto the fixed part through the pressing block; the pressing force of the rotary clamping assembly is adjustable; the fixing precision of the machined part is high through the fixed part; and the machining precision is guaranteed.

Description

technical field [0001] The invention relates to the field of machining equipment, in particular to a rotary clamping assembly. Background technique [0002] When processing a rotary workpiece with a hole and the hole as the central axis (such as a grinding wheel), it is often connected with a shaft and fastened with screws, or a centrally expanding fixture (such as an inner three-jaw) is used. Products are fixed, and these fixing methods generally have some disadvantages. [0003] (1) Using fastening screws to connect, the disadvantage is that the clamping speed is too slow, which affects work efficiency. [0004] (2) Using the center expansion fixture, it is necessary to adjust the expansion amount, which is inefficient, and it is easy to affect the accuracy of the center hole due to poor force control, because the friction of the hole wall is the source of all the force for fastening the workpiece, so a relatively large force is required In order to improve the efficienc...

AI Technical Summary

Problems solved by technology

[0003] (1) Using fastening screws to connect, the disadvantage is that the clamping speed is too slow, which affects work efficiency

[0004] (2) Using the center expansion fixture, it is necessary to adjust the expansion amount, which is inefficient, and it is easy to affect the accuracy of the center hole due to poor force control, because the friction of the hole wall is the source of all the force for fastening the workpiece, so a relatively large force is required In order to improve the efficiency, it is easy to cause damage to the hole and affect the accuracy due to poor manual adjustment.

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