Cutter bar structure for machining grooves in deep blind holes

Abstract

The invention discloses a cutter bar structure for machining grooves in deep blind holes. The structure aims at machining grooves in deep blind holes of boxes, and can machine grooves in blind holes. The structure comprises a cutter bar taper shank; a cutter bar is fixedly connected with the front end of the cutter bar taper shank through screws; a regulating shaft penetrates through the cutter bar; the regulating shaft is movably connected with the cutter bar; and a cutter head is movably installed on the side wall of the cutter bar along the radial direction of the cutter bar. The structure is characterized in that the contact surface between the cutter bar and the cutter head adopts a conical surface; a tapered bottom is positioned on the inner side of the regulating shaft; a gear is fixedly connected with the rear part or the rear end of the regulating shaft; an intermediate gear is installed at the rear end of the cutter bar through a hinge pin in a relatively rotating way; the intermediate gear is meshed with the gear; a screw pair is connected with between the cutter bar and the regulating shaft; the cutter bar is in transmission connection with the regulating shaft through the screw pair; a shifting sleeve is connected with the front end of the cutter bar taper shank through a pressure pad and screws in a relatively rotating way; the cutter bar penetrates through the middle of the shifting sleeve; internal teeth are formed in the side wall of the shifting sleeve; and the internal teeth are meshed with the intermediate gear.

Description

technical field [0001] The invention relates to a cutter bar structure for processing inner grooves in box-type deep holes, in particular to a cutter bar structure for processing inner grooves in deep blind holes. Background technique [0002] When machining the groove in the box-like hole, it is necessary for the cutter head to move radially at the groove in the hole so that the groove can be machined to the required size; the member that adjusts the radial movement of the cutter head in the existing cutter bar structure It is located at the front end of the tool bar, and the hole must be a through hole; when processing the groove in the blind hole, the existing tool bar cannot realize the radial movement of the tool head; and when designing the structure of the part, some need to be designed as a blind hole Grooved, but not realized. Contents of the invention [0003] The object of the present invention is to provide a cutter bar structure for processing deep blind hole...

AI Technical Summary

Problems solved by technology

[0002] When machining the groove in the box-like hole, it is necessary for the cutter head to move radially at the groove in the hole so that the groove can be machined to the required size; the member that adjusts the radial movement of the cutter head in the existing cutter bar structure It is located at the front end of the tool bar, and the hole must be a through hole; when processing the groove in the blind hole, the existing tool bar cannot realize the radial movement of the tool head; and when designing the structure of the part, some need to be designed as a blind hole grooved, but not realized

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