Novel steel ball positioner for hole

Abstract

A novel steel ball positioner for hole belongs to the field of machine tool fixtures. three holes are evenly formed in a base of the novel steel ball positioner, and every two adjacent holes form an included angle of 120 degrees; a steel ball in contact with a push rod is installed in each hole; the push rod is connected with a spring; a cover plate is installed on the base to prevent a top rod and the spring from falling out; a through hole is formed in the middle of the cover plate to make the push rod pass through the through hole to be in contact with a workpiece; an air cylinder is installed on the lower surface of the base; the upper part of the air cylinder is connected with the top rod; and one steel ball is installed on the top rod and is in contact with three steel balls in the horizontal direction. During operation, the air cylinder jacks up the top rod and pushes the steel ball to move upward, so as to push the three steel balls in the horizontal direction to move and push the three push rods to tighten the component holes of the workpiece by expanding outward. During resetting, the air cylinder retrieves and drives the top rod to retrieve as well. The novel steel ball positioner has reliable and highly accurate positioning; the installed air cylinder is convenient for automatic control. Positioning and clamping can be done at one time; and the novel steel ball positioner can be repeatedly used, so that the production efficiency of clamping of a numerical control milling machine is improved.

Description

technical field [0001] The invention belongs to the field of machine tool fixtures, and provides a steel ball positioner for holes, which is suitable for working occasions where holes need to be automatically and accurately positioned and quickly clamped when workpieces are processed by numerical control machine tools and common milling machines. Background technique [0002] When CNC machine tools are processing parts, some parts need to be positioned quickly and with high precision. In the past, when CNC machine tools needed to be positioned by holes, a positioning axis was first prepared according to the hole, and then the positioning axis was fixed on the workbench. The diameter of the positioning hole of the processed parts is different, and the positioning axis needs to be equipped every time, which seriously affects the efficiency of the clamping parts of the CNC machine tool, wastes materials, and restricts the improvement of production efficiency. Contents of the i...

AI Technical Summary

Problems solved by technology

[0002] When CNC machine tools are processing parts, some parts need to be positioned quickly and with high precision. In the past, when CNC machine tools needed to be positioned by holes, a positioning axis was first prepared according to the hole, and then the positioning axis was fixed on the workbench. The diameter of the positioning hole of the processed parts is different, and the positioning axis needs to be equipped every time, which seriously affects the efficiency of the clamping parts of the CNC machine tool, wastes materials, and restricts the improvement of production efficiency.

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