Axial pre-tightening device of ball screw

A technology of axial pre-tightening and ball screw, which is applied in the direction of feeding device, metal processing machinery parts, maintenance and safety accessories, etc., can solve the problem of insufficient axial force of adjustment accuracy, and achieve the purpose of improving adjustment accuracy and increasing axial force. The effect of power and convenient operation
CN103433796AActive Publication Date: 2013-12-11烟台海德智能装备有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
烟台海德智能装备有限公司
Publication Date
2013-12-11

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Abstract

The invention provides an axial pre-tightening device of a ball screw. The device comprises a machine tool body, the front end of the machine tool body is provided with a servo motor bearing base, the rear end of the machine tool body is provided with a rear bearing base, a ball screw pair, a pressing nut, a bearing gland and a bearing assembly are arranged in the servo motor bearing base, a protruding guide tenon is arranged on the servo motor bearing base, a guide groove is formed in the position, corresponding to the servo motor bearing base, of the machine tool body, the guide tenon is matched with the guide groove, an adjusting screw rod is arranged in the guide tenon, the adjusting screw rod is connected with a fixing plate on the machine tool body, a boss is arranged on the position, corresponding to the rear bearing base, of the machine tool body, and the boss is in contact with the rear bearing base. After clearance fit of bearings, by means of displacement adjustment of the bearing bases, axial stretching and pre-tightening of the ball screw of a machine tool transmission system are achieved, adjustment precision is improved, axial force is increased, linear motion precision and dynamic response precision of the ball screw are greatly improved, and operation in assembly is facilitated.
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Description

technical field

[0001] The invention belongs to the technical field, and in particular relates to an axial pretensioning device for a ball screw. Background technique

[0002] At present, the ball screw transmission system of the general machining center worktable is adjusted by the nut of the compression bearing in the preloading process of the assembly process. Due to the influence of the adjustment method, the adjustment accuracy and the axial force of the adjustment are not enough. , thus affecting the linear running accuracy and dynamic response accuracy of the screw.

[0003] Contents of the invention

[0004] The invention provides an axial pretensioning device for a ball screw, which solves the disadvantages of insufficient adjustment accuracy and adjusted axial force of the pretensioning device in the background art.

[0005] The technical solution of the present invention is realized in the following way: the ball screw axial pretensioning device includes a mac...

Claims

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