Integral sliding plate structure of motor seat, front support and rear support of lead screw and nut seat of lead screw

Abstract

The invention provides an integral sliding plate structure of a motor seat, a front support and a rear support of a lead screw and a nut seat of the lead screw, and relates to a part of a numerical control lathe; a sliding plate main body, the motor seat, the front support and the rear support of the lead screw, and the nut seat of the lead screw of the sliding plate structure are of an integral overall structure; the front support and the rear support of the lead screw are respectively formed by extending the front end and the rear end of the sliding plate main body upwards; the middle parts of the front support and the rear support of the lead screw are respectively provided through support inner holes; the inner holes of the front support and the rear support are coaxial; the motor seat is integrally connected onto the outer side of the front support of the lead screw; both sides of the front support and the rear support of the lead screw are respectively provided with guide rails which are formed by directly extending the sliding plate main body; the two guide rails are in parallel; the two guide rails are respectively in parallel with the axes of the inner holes of the front support and the rear support; the nut seat of the lead screw is formed by extending the middle part of the sliding plate main body downwards; and the axis of the nut seat of the lead screw is vertical to the axes of the inner holes of the front support and the rear support. The integral sliding plate structure has the beneficial effects of high precision, good rigidity, small vibration and long service life.

Description

technical field [0001] The invention relates to a component of a numerically controlled lathe, in particular to a slide plate structure of a numerically controlled lathe. Background technique [0002] The slide plate structure (also known as large carriage or longitudinal slide plate) of the existing CNC lathe is mainly composed of the main body of the slide plate, the motor seat, the front support of the screw rod, the rear support of the screw mandrel, the nut seat of the screw mandrel, and the front and rear supports of the screw mandrel. The main body of the slide plate, the motor seat, the front support of the screw, the rear support of the screw, and the nut seat of the screw are usually formed by casting separately, and then the reference surface and the mating surface of each casting are machined separately. After processing, the motor seat, the front support of the screw rod, the rear support of the screw rod, and the seat of the screw nut are respectively connected...

AI Technical Summary

Problems solved by technology

The following technical parameters of the slide plate structure manufactured in this way are difficult to guarantee: 1. The coaxiality of the inner hole of the support of the front support of the screw rod and the inner hole of the support of the rear support of the screw rod; 2. The front and rear supports of the screw rod The parallelism between the axis line of the inner hole of the seat and the guide rails on both sides of the front and rear supports of the screw; 3. The perpendicularity between the axis line of the inner hole of the front and rear supports of the screw and the axis of the inner hole of the screw nut seat

Even if the parts meet the requirements after machining, but due to the use of split structure parts, and the machining positioning reference of each part is not uniform, it is easy to affect the above three main technical parameters due to the accumulation of tolerances after assembly.

At the same time, each component is assembled separately to form a skateboard structure. The quality of the skateboard structure is also closely related to the assembly technology level of the assembler, and it is very easy to affect the accuracy of the assembled skateboard structure due to human factors.

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