Large-clamping-force machining device for hole in gate valve

Abstract

The invention discloses a large-clamping-force machining device for a hole in a gate valve. The device comprises a first air cylinder, a spindle box, a pulley, a motor, a workpiece clamping cylinder,a parallelogram force increasing mechanism, a clamp, a workpiece, a second air cylinder, a two-station workpiece dragging plate, a pawl, a screw nut, a gear, a hinge spindle, a hinge tap, a milling spindle, a milling cutter and a rack. The device is characterized in that the workpiece clamping cylinder is in the middle of a machine tool, the parallelogram force increasing mechanism is on the rightside of the workpiece clamping cylinder, the air cylinder pushes the parallelogram clamping device to clamp the workpiece to the clamp on the workpiece dragging plate, and the workpiece dragging plate has two stations. The workpiece is pneumatically clamped, the workpiece clamping device is large in clamping force and long in acting stroke, workpiece machining precision is high, and the machine tool efficiency is high.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to a processing device with a large clamping force for the middle port of a gate valve. Background technique [0002] At present, in the field of mechanical processing, there are many parts that need to drill many holes, and then twist wires in these holes to form threaded holes. The general processing method is to use a drilling machine to drill holes first, and then use a wire twisting machine for twisting processing. A single process corresponds to a single equipment processing product; this kind of processing method has many processes, long processing cycle and high processing cost. [0003] In the field of mechanical processing of gate valve processing technology, there is an insurmountable problem of increasing the clamping force. The gate valve parts need to process two twisted wire holes, but this kind of valve has a large volume and a large amount of processing. The cl...

AI Technical Summary

Problems solved by technology

The general processing method is to use a drilling machine to drill holes first, and then use a wire twisting machine for twisting processing. A single process corresponds to a single equipment processing product; this kind of processing method has many processes, long processing cycle and high processing cost.

[0003] In the field of mechanical processing of gate valve processing technology, there is an insurmountable problem of increasing the clamping force. The gate valve parts need to process two twisted wire holes, but this kind of valve has a large volume and a large amount of processing. The clamping force is also very large. To increase the clamping force, the pressure of the oil cylinder must be increased, or other methods. Therefore, there is an urgent need for a multi-functional machining equipment that can be used for multiple purposes, which is convenient for processing, improves processing efficiency, and solves the existing low production capacity. , backward processing technology and other defects

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