Limiting mechanism for oval press-fit machine

Abstract

The invention discloses a limiting mechanism for an oval embedding machine. The limiting mechanism comprises two sets of horizontal guide rails fixed to a work table of a machine frame. A plurality of horizontal slide blocks are inserted in the horizontal guide rails in a sleeved mode. Horizontal installation plates are fixed to the horizontal slide blocks. L-shaped installation supports are fixed to the horizontal installation plates. Vertical guide rails are fixed to the vertical faces of the installation supports. Vertical slide blocks are inserted in the vertical guide rails in a sleeved mode. Limiting blocks are fixed to the vertical slide blocks. Inserting rods with one sides being arc faces are formed at the upper ends of the limiting blocks. The lower ends of the limiting blocks are fixedly connected to a piston rod of an air cylinder. The air cylinder is fixed to the lower end faces of the horizontal installation plates. The inserting rods on the limiting blocks are inserted into the joint portion of a transmission shaft, and therefore the transmission shaft can be effectively prevented from rotating, the press fit point of the transmission shaft can be located, and the press fit quality of the transmission shaft is effectively ensured.

Description

Technical field: [0001] The invention relates to the technical field of pressing machines, and more specifically relates to a limit mechanism of an ellipse fitting machine. Background technique: [0002] At present, the ellipse fitting machine is a pressing machine that presses the connecting pipe wall into an ellipse. Pressing the connection of two shafts that are plugged together into an ellipse can prevent both radial rotation and axial movement. Therefore, the press fit between the transmission shaft connections on some cars is generally elliptical. However, when pressing some transmission shafts with a cross universal joint at one end, the steering knuckle of the transmission shaft is movable, and the existing elliptical fitting machine does not limit it, so that the steering knuckle will rotate. In some positions The steering knuckle will rotate, and the steering knuckle will drive the entire drive shaft to rotate under the action of gravity, thereby affecting the qua...

AI Technical Summary

Problems solved by technology

Pressing the joints of the two shafts that are plugged together into an ellipse can prevent both radial rotation and axial movement. Therefore, the press fit between the transmission shaft connections on some cars is generally elliptical. And for the pressing of some transmission shafts with cross universal joints at one end, the steering knuckle of the transmission shaft is movable, and the existing elliptical fitting machine does not limit it, so the steering knuckle will rotate. In some positions The steering knuckle will rotate, and the steering knuckle will drive the entire transmission shaft to rotate under the action of gravity, thus affecting the quality of the pressing

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