Radial feed bearing mounting hole inner hole annular groove boring device

Abstract

The invention discloses a radial feed bearing mounting hole inner hole annular groove boring device which comprises a hollow main shaft. A cutter rod is arranged at the front end of the main shaft in the radial direction of the main shaft, a push rod penetrates through a cavity in the main shaft, one end of the push rod is arranged in a connecting plate guide mechanism, a gear rack is arranged at the other end of the push rod, the gear rack is meshed with a gear, and the gear is meshed with a gear rack on the lower end face of the cutter rod. A boring theory is used, a feed adjusting method is similar to turning, a hand wheel is conveniently adjusted to rotate, and continuous feed can be achieved. A workpiece stays still, only a cutter rotates, the equipment structure is simplified, power is reduced, and the device is more suitable for machining the similar surfaces of large workpieces. Speed is reduced through worm and worm gear transmission, the radial feed of the cutter is low and even, impacts are reduced, and the life of the cutter is prolonged.

Description

[0001] technical field [0002] The invention relates to a device for boring an annular groove in an inner hole, in particular to a device for boring an annular groove in an inner hole of a bearing mounting hole with a radial feed. Background technique [0003] At present, there are annular grooves in the installation holes of some box bearings, which are used to install the circlips for the holes to determine the axial position of the bearings. During batch processing, the bearing mounting hole is generally processed by boring die method, and the annular groove cannot be processed. It needs to be cut and processed on a horizontal boring machine, that is, the tool holder is installed on the flat rotary table of the boring machine, the tool is manually fed, and the flat rotary table Together with the feed handwheel, it revolves with the main shaft, and the feed is generally intermittent feed. Or when the vertical lathe is out of the circular groove, the workpiece is rotated ...

AI Technical Summary

Problems solved by technology

Or in the vertical lathe out of the circular groove, the workpiece is rotated after positioning, the power consumption of the machine tool is high, the equipment occupation cost is high, the workpiece needs to be aligned and clamped, it is not easy to guarantee the machining accuracy, the operator's technical level is high, and the labor intensity is high.

[0004] Chinese patent CN2707405 discloses an automatic boring tool holder for end faces, which adopts a horizontal and transverse feed slide seat slidably installed on the lower part of the tool holder body. A worm that can be connected to the long rod is installed at the center line, and a worm gear meshed with the worm is installed along the horizontal horizontal position. The shaft end of the worm gear is equipped with a driving gear and a clutch. The outer end of the threaded rod that enters the internal thread is equipped with a driven gear that meshes with the driving gear. This patent is used for boring the end face of the inner hole on a radial drilling machine. A "power" input shaft needs to pass through the inner hole. In addition, operating parts such as clutches and handwheels revolve together with the tool post. Turning the handwheel during high-speed rotation will result in low positioning accuracy and unsafety.

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