Inner circle machining positioning and clamping device

Abstract

The invention discloses an inner circle machining positioning and clamping device. The inner circle machining positioning and clamping device comprises a screw A, a bolt, a blocking piece, a spring, an ejector rod, an inner ring, an outer ring, a pin shaft, a screw B, a base plate and a sliding block. The inner ring is arranged on the base plate and is fixedly connected with the base plate through the screw B. A plurality of radial through holes used for installing the spring and the ejector rod are formed in the surface of the outer circle of the inner ring. The outer ring is arranged on the surface of the outer circle of the inner ring in a sleeving mode. When the outer ring is rotated, positioning and clamping of a workpiece can be achieved by pressing the ejector rod through ratchet-shaped bosses and the blocking pieces. Due to the fact that the workpiece is clamped through the ejector rod by rotating the outer ring, the problems that centering is difficult and a large amount of time is consumed in a traditional clamping mode are solved; in addition, the inner circle machining positioning and clamping device is scientific and reasonable in whole structure, simple and convenient to install and operate, high in positioning precision, high in clamping speed, high in production efficiency, easy to apply and popularize and widely suitable for machining positioning and clamping of various inner circles, and especially for machining positioning and clamping of inner circles of various external-tooth type parts.

Description

technical field [0001] The invention relates to a positioning and clamping device for inner circle processing, in particular to a fast positioning and clamping device for inner circle processing of external gear parts. Background technique [0002] The internal grinding machine is used for grinding the inner surface of cylindrical, conical or other ring parts, and is suitable for mass and rapid production; when grinding the inner hole of external gear parts, it is necessary to apply butter on the surface of the standard round rod, Clamp the round bar in the tooth groove, then press the round bar with the soft jaws of the four-jaw chuck, and then correct and center the outer tooth parts. Round rods are enough, and the production cost is low, but there are also a series of problems such as difficulty in centering, difficulty in aligning the product after clamping, easy damage to standard round rods, and long clamping time. Contents of the invention [0003] In view of the a...

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Problems solved by technology

[0003] In view of the above situation, the purpose of the present invention is to provide a positioning and clamping device for inner circle processing, which uses the rotating outer ring to clamp the workpiece through the ejector rod, thereby overcoming the problems of difficult centering and time-consuming traditional clamping methods; and the overall structure is scientific Reasonable, easy to install and operate, high positioning accuracy, fast clamping speed, high production efficiency, easy to popularize and use

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